Swiftdiff options
| author | Tobias Markmann <tm@ayena.de> | 2018-03-20 13:12:10 (GMT) |
|---|---|---|
| committer | Tobias Markmann <tm@ayena.de> | 2018-03-20 14:48:04 (GMT) |
| commit | f2c2c7d035029fb9615b42c18ccea83e8e705b10 (patch) | |
| tree | 2f56fb77de0f366528395f21732d418f016f63b5 /3rdParty/Breakpad/src/common | |
| parent | 44581c5285d13c0ec715b35ddc79177e5ebeef39 (diff) | |
| parent | 5ba3f18ad8efa040d49f36d83ec2e7891a9add9f (diff) | |
| download | swift-1e10c17b3585afb3a4bb0e849263dd463816d2c0.zip swift-1e10c17b3585afb3a4bb0e849263dd463816d2c0.tar.bz2 | |
Merge branch 'swift-4.x'swift-5.0alpha2
* swift-4.x: (44 commits)
Test-Information:
Builds on macOS 10.13.3 with clang trunk.
Change-Id: If50381f103b0ad18d038b920d3d43537642141cb
Diffstat (limited to '3rdParty/Breakpad/src/common')
104 files changed, 26411 insertions, 978 deletions
diff --git a/3rdParty/Breakpad/src/common/basictypes.h b/3rdParty/Breakpad/src/common/basictypes.h new file mode 100644 index 0000000..9426c1f --- /dev/null +++ b/3rdParty/Breakpad/src/common/basictypes.h @@ -0,0 +1,58 @@ +// Copyright (c) 2011 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef COMMON_BASICTYPES_H_ +#define COMMON_BASICTYPES_H_ + +// A macro to disallow the copy constructor and operator= functions +// This should be used in the private: declarations for a class +#ifndef DISALLOW_COPY_AND_ASSIGN +#define DISALLOW_COPY_AND_ASSIGN(TypeName) \ + TypeName(const TypeName&); \ + void operator=(const TypeName&) +#endif // DISALLOW_COPY_AND_ASSIGN + +namespace google_breakpad { + +// Used to explicitly mark the return value of a function as unused. If you are +// really sure you don't want to do anything with the return value of a function +// that has been marked with __attribute__((warn_unused_result)), wrap it with +// this. Example: +// +// scoped_ptr<MyType> my_var = ...; +// if (TakeOwnership(my_var.get()) == SUCCESS) +// ignore_result(my_var.release()); +// +template<typename T> +inline void ignore_result(const T&) { +} + +} // namespace google_breakpad + +#endif // COMMON_BASICTYPES_H_ diff --git a/3rdParty/Breakpad/src/common/byte_cursor_unittest.cc b/3rdParty/Breakpad/src/common/byte_cursor_unittest.cc new file mode 100644 index 0000000..06bfd89 --- /dev/null +++ b/3rdParty/Breakpad/src/common/byte_cursor_unittest.cc @@ -0,0 +1,776 @@ +// Copyright (c) 2010 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// byte_cursor_unittest.cc: Unit tests for google_breakpad::ByteBuffer +// and google_breakpad::ByteCursor. + +#include <string> + +#include <string.h> + +#include "breakpad_googletest_includes.h" +#include "common/byte_cursor.h" +#include "common/using_std_string.h" + +using google_breakpad::ByteBuffer; +using google_breakpad::ByteCursor; + +TEST(Buffer, SizeOfNothing) { + uint8_t data[1]; + ByteBuffer buffer(data, 0); + EXPECT_EQ(0U, buffer.Size()); +} + +TEST(Buffer, SizeOfSomething) { + uint8_t data[10]; + ByteBuffer buffer(data, sizeof(data)); + EXPECT_EQ(10U, buffer.Size()); +} + +TEST(Extent, AvailableEmpty) { + uint8_t data[1]; + ByteBuffer buffer(data, 0); + ByteCursor cursor(&buffer); + EXPECT_EQ(0U, cursor.Available()); +} + +TEST(Extent, AtEndEmpty) { + uint8_t data[1]; + ByteBuffer buffer(data, 0); + ByteCursor cursor(&buffer); + EXPECT_TRUE(cursor.AtEnd()); +} + +TEST(Extent, AsBoolEmpty) { + uint8_t data[1]; + ByteBuffer buffer(data, 0); + ByteCursor cursor(&buffer); + EXPECT_TRUE(cursor); +} + +TEST(Extent, AvailableSome) { + uint8_t data[10]; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + EXPECT_EQ(10U, cursor.Available()); +} + +TEST(Extent, AtEndSome) { + uint8_t data[10]; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + EXPECT_FALSE(cursor.AtEnd()); + EXPECT_TRUE(cursor.Skip(sizeof(data)).AtEnd()); +} + +TEST(Extent, AsBoolSome) { + uint8_t data[10]; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + EXPECT_TRUE(cursor); + EXPECT_TRUE(cursor.Skip(sizeof(data))); + EXPECT_FALSE(cursor.Skip(1)); +} + +TEST(Extent, Cursor) { + uint8_t data[] = { 0xf7, + 0x9f, 0xbe, + 0x67, 0xfb, 0xd3, 0x58, + 0x6f, 0x36, 0xde, 0xd1, + 0x2a, 0x2a, 0x2a }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + + uint8_t a; + uint16_t b; + uint32_t c; + uint32_t d; + uint8_t stars[3]; + + EXPECT_EQ(data + 0U, cursor.here()); + + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(data + 1U, cursor.here()); + + EXPECT_TRUE(cursor >> b); + EXPECT_EQ(data + 3U, cursor.here()); + + EXPECT_TRUE(cursor >> c); + EXPECT_EQ(data + 7U, cursor.here()); + + EXPECT_TRUE(cursor.Skip(4)); + EXPECT_EQ(data + 11U, cursor.here()); + + EXPECT_TRUE(cursor.Read(stars, 3)); + EXPECT_EQ(data + 14U, cursor.here()); + + EXPECT_FALSE(cursor >> d); + EXPECT_EQ(data + 14U, cursor.here()); +} + +TEST(Extent, SetOffset) { + uint8_t data[] = { 0x5c, 0x79, 0x8c, 0xd5 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + + uint8_t a, b, c, d, e; + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(0x5cU, a); + EXPECT_EQ(data + 1U, cursor.here()); + EXPECT_TRUE(((cursor >> b).set_here(data + 3) >> c).set_here(data + 1) + >> d >> e); + EXPECT_EQ(0x79U, b); + EXPECT_EQ(0xd5U, c); + EXPECT_EQ(0x79U, d); + EXPECT_EQ(0x8cU, e); + EXPECT_EQ(data + 3U, cursor.here()); +} + +TEST(BigEndian, Signed1) { + uint8_t data[] = { 0x00, 0x7f, 0x80, 0xff }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + cursor.set_big_endian(true); + int a, b, c, d, e; + ASSERT_TRUE(cursor + .Read(1, true, &a) + .Read(1, true, &b) + .Read(1, true, &c) + .Read(1, true, &d)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7f, b); + EXPECT_EQ(-0x80, c); + EXPECT_EQ(-1, d); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(1, true, &e)); +} + +TEST(BigEndian, Signed2) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x80, 0x7f, 0xff, + 0x80, 0x00, 0x80, 0x80, 0xff, 0xff, + 0x39, 0xf1, 0x8a, 0xbc, 0x5a, 0xec }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer, true); + int a, b, c, d, e, f, g, h, i, j; + ASSERT_TRUE(cursor + .Read(2, true, &a) + .Read(2, true, &b) + .Read(2, true, &c) + .Read(2, true, &d) + .Read(2, true, &e) + .Read(2, true, &f) + .Read(2, true, &g) + .Read(2, true, &h) + .Read(2, true, &i)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x80, b); + EXPECT_EQ(0x7fff, c); + EXPECT_EQ(-0x8000, d); + EXPECT_EQ(-0x7f80, e); + EXPECT_EQ(-1, f); + EXPECT_EQ(0x39f1, g); + EXPECT_EQ(-0x7544, h); + EXPECT_EQ(0x5aec, i); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(2, true, &j)); +} + +TEST(BigEndian, Signed4) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, + 0x7f, 0xff, 0xff, 0xff, + 0x80, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, + 0xb6, 0xb1, 0xff, 0xef, + 0x19, 0x6a, 0xca, 0x46 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + cursor.set_big_endian(true); + int64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(4, true, &a) + .Read(4, true, &b) + .Read(4, true, &c) + .Read(4, true, &d) + .Read(4, true, &e) + .Read(4, true, &f)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7fffffff, b); + EXPECT_EQ(-0x80000000LL, c); + EXPECT_EQ(-1, d); + EXPECT_EQ((int32_t) 0xb6b1ffef, e); + EXPECT_EQ(0x196aca46, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(4, true, &g)); +} + +TEST(BigEndian, Signed8) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x93, 0x20, 0xd5, 0xe9, 0xd2, 0xd5, 0x87, 0x9c, + 0x4e, 0x42, 0x49, 0xd2, 0x7f, 0x84, 0x14, 0xa4 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer, true); + int64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(8, true, &a) + .Read(8, true, &b) + .Read(8, true, &c) + .Read(8, true, &d) + .Read(8, true, &e) + .Read(8, true, &f)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7fffffffffffffffLL, b); + EXPECT_EQ(-0x7fffffffffffffffLL - 1, c); + EXPECT_EQ(-1, d); + EXPECT_EQ((int64_t) 0x9320d5e9d2d5879cULL, e); + EXPECT_EQ(0x4e4249d27f8414a4LL, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(8, true, &g)); +} + +TEST(BigEndian, Unsigned1) { + uint8_t data[] = { 0x00, 0x7f, 0x80, 0xff }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + cursor.set_big_endian(true); + int32_t a, b, c, d, e; + ASSERT_TRUE(cursor + .Read(1, false, &a) + .Read(1, false, &b) + .Read(1, false, &c) + .Read(1, false, &d)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7f, b); + EXPECT_EQ(0x80, c); + EXPECT_EQ(0xff, d); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(1, false, &e)); +} + +TEST(BigEndian, Unsigned2) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x80, 0x7f, 0xff, + 0x80, 0x00, 0x80, 0x80, 0xff, 0xff, + 0x39, 0xf1, 0x8a, 0xbc, 0x5a, 0xec }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer, true); + int64_t a, b, c, d, e, f, g, h, i, j; + ASSERT_TRUE(cursor + .Read(2, false, &a) + .Read(2, false, &b) + .Read(2, false, &c) + .Read(2, false, &d) + .Read(2, false, &e) + .Read(2, false, &f) + .Read(2, false, &g) + .Read(2, false, &h) + .Read(2, false, &i)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x80, b); + EXPECT_EQ(0x7fff, c); + EXPECT_EQ(0x8000, d); + EXPECT_EQ(0x8080, e); + EXPECT_EQ(0xffff, f); + EXPECT_EQ(0x39f1, g); + EXPECT_EQ(0x8abc, h); + EXPECT_EQ(0x5aec, i); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(2, false, &j)); +} + +TEST(BigEndian, Unsigned4) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, + 0x7f, 0xff, 0xff, 0xff, + 0x80, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, + 0xb6, 0xb1, 0xff, 0xef, + 0x19, 0x6a, 0xca, 0x46 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + cursor.set_big_endian(true); + int64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(4, false, &a) + .Read(4, false, &b) + .Read(4, false, &c) + .Read(4, false, &d) + .Read(4, false, &e) + .Read(4, false, &f)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7fffffff, b); + EXPECT_EQ(0x80000000, c); + EXPECT_EQ(0xffffffff, d); + EXPECT_EQ(0xb6b1ffef, e); + EXPECT_EQ(0x196aca46, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(4, false, &g)); +} + +TEST(BigEndian, Unsigned8) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x93, 0x20, 0xd5, 0xe9, 0xd2, 0xd5, 0x87, 0x9c, + 0x4e, 0x42, 0x49, 0xd2, 0x7f, 0x84, 0x14, 0xa4 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer, true); + uint64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(8, false, &a) + .Read(8, false, &b) + .Read(8, false, &c) + .Read(8, false, &d) + .Read(8, false, &e) + .Read(8, false, &f)); + EXPECT_EQ(0U, a); + EXPECT_EQ(0x7fffffffffffffffULL, b); + EXPECT_EQ(0x8000000000000000ULL, c); + EXPECT_EQ(0xffffffffffffffffULL, d); + EXPECT_EQ(0x9320d5e9d2d5879cULL, e); + EXPECT_EQ(0x4e4249d27f8414a4ULL, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(8, false, &g)); +} + +TEST(LittleEndian, Signed1) { + uint8_t data[] = { 0x00, 0x7f, 0x80, 0xff }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int32_t a, b, c, d, e; + ASSERT_TRUE(cursor + .Read(1, true, &a) + .Read(1, true, &b) + .Read(1, true, &c) + .Read(1, true, &d)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7f, b); + EXPECT_EQ(-0x80, c); + EXPECT_EQ(-1, d); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(1, true, &e)); +} + +TEST(LittleEndian, Signed2) { + uint8_t data[] = { 0x00, 0x00, 0x80, 0x00, 0xff, 0x7f, + 0x00, 0x80, 0x80, 0x80, 0xff, 0xff, + 0xf1, 0x39, 0xbc, 0x8a, 0xec, 0x5a }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer, false); + int32_t a, b, c, d, e, f, g, h, i, j; + ASSERT_TRUE(cursor + .Read(2, true, &a) + .Read(2, true, &b) + .Read(2, true, &c) + .Read(2, true, &d) + .Read(2, true, &e) + .Read(2, true, &f) + .Read(2, true, &g) + .Read(2, true, &h) + .Read(2, true, &i)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x80, b); + EXPECT_EQ(0x7fff, c); + EXPECT_EQ(-0x8000, d); + EXPECT_EQ(-0x7f80, e); + EXPECT_EQ(-1, f); + EXPECT_EQ(0x39f1, g); + EXPECT_EQ(-0x7544, h); + EXPECT_EQ(0x5aec, i); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(2, true, &j)); +} + +TEST(LittleEndian, Signed4) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0x7f, + 0x00, 0x00, 0x00, 0x80, + 0xff, 0xff, 0xff, 0xff, + 0xef, 0xff, 0xb1, 0xb6, + 0x46, 0xca, 0x6a, 0x19 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(4, true, &a) + .Read(4, true, &b) + .Read(4, true, &c) + .Read(4, true, &d) + .Read(4, true, &e) + .Read(4, true, &f)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7fffffff, b); + EXPECT_EQ(-0x80000000LL, c); + EXPECT_EQ(-1, d); + EXPECT_EQ((int32_t) 0xb6b1ffef, e); + EXPECT_EQ(0x196aca46, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(4, true, &g)); +} + +TEST(LittleEndian, Signed8) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x9c, 0x87, 0xd5, 0xd2, 0xe9, 0xd5, 0x20, 0x93, + 0xa4, 0x14, 0x84, 0x7f, 0xd2, 0x49, 0x42, 0x4e }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer, false); + int64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(8, true, &a) + .Read(8, true, &b) + .Read(8, true, &c) + .Read(8, true, &d) + .Read(8, true, &e) + .Read(8, true, &f)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7fffffffffffffffLL, b); + EXPECT_EQ(-0x7fffffffffffffffLL - 1, c); + EXPECT_EQ(-1, d); + EXPECT_EQ((int64_t) 0x9320d5e9d2d5879cULL, e); + EXPECT_EQ(0x4e4249d27f8414a4LL, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(8, true, &g)); +} + +TEST(LittleEndian, Unsigned1) { + uint8_t data[] = { 0x00, 0x7f, 0x80, 0xff }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int32_t a, b, c, d, e; + ASSERT_TRUE(cursor + .Read(1, false, &a) + .Read(1, false, &b) + .Read(1, false, &c) + .Read(1, false, &d)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7f, b); + EXPECT_EQ(0x80, c); + EXPECT_EQ(0xff, d); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(1, false, &e)); +} + +TEST(LittleEndian, Unsigned2) { + uint8_t data[] = { 0x00, 0x00, 0x80, 0x00, 0xff, 0x7f, + 0x00, 0x80, 0x80, 0x80, 0xff, 0xff, + 0xf1, 0x39, 0xbc, 0x8a, 0xec, 0x5a }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int32_t a, b, c, d, e, f, g, h, i, j; + ASSERT_TRUE(cursor + .Read(2, false, &a) + .Read(2, false, &b) + .Read(2, false, &c) + .Read(2, false, &d) + .Read(2, false, &e) + .Read(2, false, &f) + .Read(2, false, &g) + .Read(2, false, &h) + .Read(2, false, &i)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x80, b); + EXPECT_EQ(0x7fff, c); + EXPECT_EQ(0x8000, d); + EXPECT_EQ(0x8080, e); + EXPECT_EQ(0xffff, f); + EXPECT_EQ(0x39f1, g); + EXPECT_EQ(0x8abc, h); + EXPECT_EQ(0x5aec, i); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(2, false, &j)); +} + +TEST(LittleEndian, Unsigned4) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0x7f, + 0x00, 0x00, 0x00, 0x80, + 0xff, 0xff, 0xff, 0xff, + 0xef, 0xff, 0xb1, 0xb6, + 0x46, 0xca, 0x6a, 0x19 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(4, false, &a) + .Read(4, false, &b) + .Read(4, false, &c) + .Read(4, false, &d) + .Read(4, false, &e) + .Read(4, false, &f)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7fffffff, b); + EXPECT_EQ(0x80000000, c); + EXPECT_EQ(0xffffffff, d); + EXPECT_EQ(0xb6b1ffef, e); + EXPECT_EQ(0x196aca46, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(4, false, &g)); +} + +TEST(LittleEndian, Unsigned8) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x9c, 0x87, 0xd5, 0xd2, 0xe9, 0xd5, 0x20, 0x93, + 0xa4, 0x14, 0x84, 0x7f, 0xd2, 0x49, 0x42, 0x4e }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + uint64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(8, false, &a) + .Read(8, false, &b) + .Read(8, false, &c) + .Read(8, false, &d) + .Read(8, false, &e) + .Read(8, false, &f)); + EXPECT_EQ(0U, a); + EXPECT_EQ(0x7fffffffffffffffULL, b); + EXPECT_EQ(0x8000000000000000ULL, c); + EXPECT_EQ(0xffffffffffffffffULL, d); + EXPECT_EQ(0x9320d5e9d2d5879cULL, e); + EXPECT_EQ(0x4e4249d27f8414a4ULL, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(8, false, &g)); +} + +TEST(Extractor, Signed1) { + uint8_t data[] = { 0xfd }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int8_t a; + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(-3, a); + EXPECT_FALSE(cursor >> a); +} + +TEST(Extractor, Signed2) { + uint8_t data[] = { 0x13, 0xcd }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int16_t a; + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(-13037, a); + EXPECT_FALSE(cursor >> a); +} + +TEST(Extractor, Signed4) { + uint8_t data[] = { 0xd2, 0xe4, 0x53, 0xe9 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int32_t a; + // For some reason, G++ 4.4.1 complains: + // warning: array subscript is above array bounds + // in ByteCursor::Read(size_t, bool, T *) as it inlines this call, but + // I'm not able to see how such a reference would occur. + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(-380377902, a); + EXPECT_FALSE(cursor >> a); +} + +TEST(Extractor, Unsigned1) { + uint8_t data[] = { 0xfd }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + uint8_t a; + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(0xfd, a); + EXPECT_FALSE(cursor >> a); +} + +TEST(Extractor, Unsigned2) { + uint8_t data[] = { 0x13, 0xcd }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + uint16_t a; + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(0xcd13, a); + EXPECT_FALSE(cursor >> a); +} + +TEST(Extractor, Unsigned4) { + uint8_t data[] = { 0xd2, 0xe4, 0x53, 0xe9 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + uint32_t a; + // For some reason, G++ 4.4.1 complains: + // warning: array subscript is above array bounds + // in ByteCursor::Read(size_t, bool, T *) as it inlines this call, but + // I'm not able to see how such a reference would occur. + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(0xe953e4d2, a); + EXPECT_FALSE(cursor >> a); + EXPECT_FALSE(cursor >> a); +} + +TEST(Extractor, Mixed) { + uint8_t data[] = { 0x42, + 0x25, 0x0b, + 0x3d, 0x25, 0xed, 0x2a, + 0xec, 0x16, 0x9e, 0x14, 0x61, 0x5b, 0x2c, 0xcf, + 0xd8, + 0x22, 0xa5, + 0x3a, 0x02, 0x6a, 0xd7, + 0x93, 0x2a, 0x2d, 0x8d, 0xb4, 0x95, 0xe0, 0xc6 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + cursor.set_big_endian(true); + + uint8_t a; + uint16_t b; + uint32_t c; + uint64_t d; + int8_t e; + int16_t f; + int32_t g; + int64_t h; + int z; + EXPECT_FALSE(cursor.AtEnd()); + EXPECT_TRUE(cursor >> a >> b >> c >> d >> e >> f >> g >> h); + EXPECT_EQ(0x42U, a); + EXPECT_EQ(0x250bU, b); + EXPECT_EQ(0x3d25ed2aU, c); + EXPECT_EQ(0xec169e14615b2ccfULL, d); + EXPECT_EQ(-40, e); + EXPECT_EQ(0x22a5, f); + EXPECT_EQ(0x3a026ad7, g); + EXPECT_EQ(-7842405714468937530LL, h); + + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor >> z); +} + +TEST(Strings, Zero) { + uint8_t data[] = { 0xa6 }; + ByteBuffer buffer(data, 0); + ByteCursor cursor(&buffer); + + uint8_t received[1]; + received[0] = 0xc2; + EXPECT_TRUE(cursor.Read(received, 0)); + EXPECT_EQ(0xc2U, received[0]); +} + +TEST(Strings, Some) { + uint8_t data[] = { 0x5d, 0x31, 0x09, 0xa6, 0x2e, 0x2c, 0x83, 0xbb }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + + uint8_t received[7] = { 0xa7, 0xf7, 0x43, 0x0c, 0x27, 0xea, 0xed }; + EXPECT_TRUE(cursor.Skip(2).Read(received, 5)); + uint8_t expected[7] = { 0x09, 0xa6, 0x2e, 0x2c, 0x83, 0xea, 0xed }; + EXPECT_TRUE(memcmp(received, expected, 7) == 0); +} + +TEST(Strings, TooMuch) { + uint8_t data[] = { 0x5d, 0x31, 0x09, 0xa6, 0x2e, 0x2c, 0x83, 0xbb }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + + uint8_t received1[3]; + uint8_t received2[3]; + uint8_t received3[3]; + EXPECT_FALSE(cursor + .Read(received1, 3) + .Read(received2, 3) + .Read(received3, 3)); + uint8_t expected1[3] = { 0x5d, 0x31, 0x09 }; + uint8_t expected2[3] = { 0xa6, 0x2e, 0x2c }; + + EXPECT_TRUE(memcmp(received1, expected1, 3) == 0); + EXPECT_TRUE(memcmp(received2, expected2, 3) == 0); +} + +TEST(Strings, PointTo) { + uint8_t data[] = { 0x83, 0x80, 0xb4, 0x38, 0x00, 0x2c, 0x0a, 0x27 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + + const uint8_t *received1; + const uint8_t *received2; + const uint8_t *received3; + const uint8_t *received4; + EXPECT_FALSE(cursor + .PointTo(&received1, 3) + .PointTo(&received2, 3) + .PointTo(&received3) + .PointTo(&received4, 3)); + EXPECT_EQ(data + 0, received1); + EXPECT_EQ(data + 3, received2); + EXPECT_EQ(data + 6, received3); + EXPECT_EQ(NULL, received4); +} + +TEST(Strings, CString) { + uint8_t data[] = "abc\0\0foo"; + ByteBuffer buffer(data, sizeof(data) - 1); // don't include terminating '\0' + ByteCursor cursor(&buffer); + + string a, b, c; + EXPECT_TRUE(cursor.CString(&a).CString(&b)); + EXPECT_EQ("abc", a); + EXPECT_EQ("", b); + EXPECT_FALSE(cursor.CString(&c)); + EXPECT_EQ("", c); + EXPECT_TRUE(cursor.AtEnd()); +} + +TEST(Strings, CStringLimit) { + uint8_t data[] = "abcdef\0\0foobar"; + ByteBuffer buffer(data, sizeof(data) - 1); // don't include terminating '\0' + ByteCursor cursor(&buffer); + + string a, b, c, d, e; + + EXPECT_TRUE(cursor.CString(&a, 3)); + EXPECT_EQ("abc", a); + + EXPECT_TRUE(cursor.CString(&b, 0)); + EXPECT_EQ("", b); + + EXPECT_TRUE(cursor.CString(&c, 6)); + EXPECT_EQ("def", c); + + EXPECT_TRUE(cursor.CString(&d, 4)); + EXPECT_EQ("ooba", d); + + EXPECT_FALSE(cursor.CString(&e, 4)); + EXPECT_EQ("", e); + + EXPECT_TRUE(cursor.AtEnd()); +} + +// uint8_t data[] = { 0xa6, 0x54, 0xdf, 0x67, 0x51, 0x43, 0xac, 0xf1 }; +// ByteBuffer buffer(data, sizeof(data)); diff --git a/3rdParty/Breakpad/src/common/convert_UTF.c b/3rdParty/Breakpad/src/common/convert_UTF.c index 80178d3..12a3c89 100644 --- a/3rdParty/Breakpad/src/common/convert_UTF.c +++ b/3rdParty/Breakpad/src/common/convert_UTF.c @@ -1,23 +1,39 @@ /* - * Copyright 2001-2004 Unicode, Inc. + * Copyright © 1991-2015 Unicode, Inc. All rights reserved. + * Distributed under the Terms of Use in + * http://www.unicode.org/copyright.html. * - * Disclaimer + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of the Unicode data files and any associated documentation + * (the "Data Files") or Unicode software and any associated documentation + * (the "Software") to deal in the Data Files or Software + * without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, and/or sell copies of + * the Data Files or Software, and to permit persons to whom the Data Files + * or Software are furnished to do so, provided that + * (a) this copyright and permission notice appear with all copies + * of the Data Files or Software, + * (b) this copyright and permission notice appear in associated + * documentation, and + * (c) there is clear notice in each modified Data File or in the Software + * as well as in the documentation associated with the Data File(s) or + * Software that the data or software has been modified. * - * This source code is provided as is by Unicode, Inc. No claims are - * made as to fitness for any particular purpose. No warranties of any - * kind are expressed or implied. The recipient agrees to determine - * applicability of information provided. If this file has been - * purchased on magnetic or optical media from Unicode, Inc., the - * sole remedy for any claim will be exchange of defective media - * within 90 days of receipt. + * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF + * ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE + * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT OF THIRD PARTY RIGHTS. + * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS + * NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL + * DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THE DATA FILES OR SOFTWARE. * - * Limitations on Rights to Redistribute This Code - * - * Unicode, Inc. hereby grants the right to freely use the information - * supplied in this file in the creation of products supporting the - * Unicode Standard, and to make copies of this file in any form - * for internal or external distribution as long as this notice - * remains attached. + * Except as contained in this notice, the name of a copyright holder + * shall not be used in advertising or otherwise to promote the sale, + * use or other dealings in these Data Files or Software without prior + * written authorization of the copyright holder. */ /* --------------------------------------------------------------------- @@ -53,8 +69,13 @@ static const UTF32 halfMask = 0x3FFUL; #define UNI_SUR_HIGH_END (UTF32)0xDBFF #define UNI_SUR_LOW_START (UTF32)0xDC00 #define UNI_SUR_LOW_END (UTF32)0xDFFF + +#ifndef false #define false 0 +#endif +#ifndef true #define true 1 +#endif /* --------------------------------------------------------------------- */ diff --git a/3rdParty/Breakpad/src/common/convert_UTF.h b/3rdParty/Breakpad/src/common/convert_UTF.h index b1556de..644d099 100644 --- a/3rdParty/Breakpad/src/common/convert_UTF.h +++ b/3rdParty/Breakpad/src/common/convert_UTF.h @@ -1,25 +1,44 @@ /* - * Copyright 2001-2004 Unicode, Inc. + * Copyright © 1991-2015 Unicode, Inc. All rights reserved. + * Distributed under the Terms of Use in + * http://www.unicode.org/copyright.html. * - * Disclaimer + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of the Unicode data files and any associated documentation + * (the "Data Files") or Unicode software and any associated documentation + * (the "Software") to deal in the Data Files or Software + * without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, and/or sell copies of + * the Data Files or Software, and to permit persons to whom the Data Files + * or Software are furnished to do so, provided that + * (a) this copyright and permission notice appear with all copies + * of the Data Files or Software, + * (b) this copyright and permission notice appear in associated + * documentation, and + * (c) there is clear notice in each modified Data File or in the Software + * as well as in the documentation associated with the Data File(s) or + * Software that the data or software has been modified. * - * This source code is provided as is by Unicode, Inc. No claims are - * made as to fitness for any particular purpose. No warranties of any - * kind are expressed or implied. The recipient agrees to determine - * applicability of information provided. If this file has been - * purchased on magnetic or optical media from Unicode, Inc., the - * sole remedy for any claim will be exchange of defective media - * within 90 days of receipt. + * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF + * ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE + * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT OF THIRD PARTY RIGHTS. + * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS + * NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL + * DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THE DATA FILES OR SOFTWARE. * - * Limitations on Rights to Redistribute This Code - * - * Unicode, Inc. hereby grants the right to freely use the information - * supplied in this file in the creation of products supporting the - * Unicode Standard, and to make copies of this file in any form - * for internal or external distribution as long as this notice - * remains attached. + * Except as contained in this notice, the name of a copyright holder + * shall not be used in advertising or otherwise to promote the sale, + * use or other dealings in these Data Files or Software without prior + * written authorization of the copyright holder. */ +#ifndef COMMON_CONVERT_UTF_H_ +#define COMMON_CONVERT_UTF_H_ + /* --------------------------------------------------------------------- Conversions between UTF32, UTF-16, and UTF-8. Header file. @@ -141,3 +160,5 @@ Boolean isLegalUTF8Sequence(const UTF8 *source, const UTF8 *sourceEnd); #endif /* --------------------------------------------------------------------- */ + +#endif // COMMON_CONVERT_UTF_H_ diff --git a/3rdParty/Breakpad/src/common/dwarf/bytereader-inl.h b/3rdParty/Breakpad/src/common/dwarf/bytereader-inl.h index 3c16708..42c92f9 100644 --- a/3rdParty/Breakpad/src/common/dwarf/bytereader-inl.h +++ b/3rdParty/Breakpad/src/common/dwarf/bytereader-inl.h @@ -32,16 +32,15 @@ #include "common/dwarf/bytereader.h" #include <assert.h> +#include <stdint.h> namespace dwarf2reader { -inline uint8 ByteReader::ReadOneByte(const char* buffer) const { +inline uint8 ByteReader::ReadOneByte(const uint8_t *buffer) const { return buffer[0]; } -inline uint16 ByteReader::ReadTwoBytes(const char* signed_buffer) const { - const unsigned char *buffer - = reinterpret_cast<const unsigned char *>(signed_buffer); +inline uint16 ByteReader::ReadTwoBytes(const uint8_t *buffer) const { const uint16 buffer0 = buffer[0]; const uint16 buffer1 = buffer[1]; if (endian_ == ENDIANNESS_LITTLE) { @@ -51,9 +50,7 @@ inline uint16 ByteReader::ReadTwoBytes(const char* signed_buffer) const { } } -inline uint64 ByteReader::ReadFourBytes(const char* signed_buffer) const { - const unsigned char *buffer - = reinterpret_cast<const unsigned char *>(signed_buffer); +inline uint64 ByteReader::ReadFourBytes(const uint8_t *buffer) const { const uint32 buffer0 = buffer[0]; const uint32 buffer1 = buffer[1]; const uint32 buffer2 = buffer[2]; @@ -65,9 +62,7 @@ inline uint64 ByteReader::ReadFourBytes(const char* signed_buffer) const { } } -inline uint64 ByteReader::ReadEightBytes(const char* signed_buffer) const { - const unsigned char *buffer - = reinterpret_cast<const unsigned char *>(signed_buffer); +inline uint64 ByteReader::ReadEightBytes(const uint8_t *buffer) const { const uint64 buffer0 = buffer[0]; const uint64 buffer1 = buffer[1]; const uint64 buffer2 = buffer[2]; @@ -89,12 +84,12 @@ inline uint64 ByteReader::ReadEightBytes(const char* signed_buffer) const { // information, plus one bit saying whether the number continues or // not. -inline uint64 ByteReader::ReadUnsignedLEB128(const char* buffer, +inline uint64 ByteReader::ReadUnsignedLEB128(const uint8_t *buffer, size_t* len) const { uint64 result = 0; size_t num_read = 0; unsigned int shift = 0; - unsigned char byte; + uint8_t byte; do { byte = *buffer++; @@ -114,12 +109,12 @@ inline uint64 ByteReader::ReadUnsignedLEB128(const char* buffer, // Read a signed LEB128 number. These are like regular LEB128 // numbers, except the last byte may have a sign bit set. -inline int64 ByteReader::ReadSignedLEB128(const char* buffer, +inline int64 ByteReader::ReadSignedLEB128(const uint8_t *buffer, size_t* len) const { int64 result = 0; unsigned int shift = 0; size_t num_read = 0; - unsigned char byte; + uint8_t byte; do { byte = *buffer++; @@ -134,18 +129,18 @@ inline int64 ByteReader::ReadSignedLEB128(const char* buffer, return result; } -inline uint64 ByteReader::ReadOffset(const char* buffer) const { +inline uint64 ByteReader::ReadOffset(const uint8_t *buffer) const { assert(this->offset_reader_); return (this->*offset_reader_)(buffer); } -inline uint64 ByteReader::ReadAddress(const char* buffer) const { +inline uint64 ByteReader::ReadAddress(const uint8_t *buffer) const { assert(this->address_reader_); return (this->*address_reader_)(buffer); } inline void ByteReader::SetCFIDataBase(uint64 section_base, - const char *buffer_base) { + const uint8_t *buffer_base) { section_base_ = section_base; buffer_base_ = buffer_base; have_section_base_ = true; diff --git a/3rdParty/Breakpad/src/common/dwarf/bytereader.cc b/3rdParty/Breakpad/src/common/dwarf/bytereader.cc index 6802026..14b43ad 100644 --- a/3rdParty/Breakpad/src/common/dwarf/bytereader.cc +++ b/3rdParty/Breakpad/src/common/dwarf/bytereader.cc @@ -27,6 +27,7 @@ // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include <assert.h> +#include <stdint.h> #include <stdlib.h> #include "common/dwarf/bytereader-inl.h" @@ -62,7 +63,7 @@ void ByteReader::SetAddressSize(uint8 size) { } } -uint64 ByteReader::ReadInitialLength(const char* start, size_t* len) { +uint64 ByteReader::ReadInitialLength(const uint8_t *start, size_t* len) { const uint64 initial_length = ReadFourBytes(start); start += 4; @@ -100,7 +101,7 @@ bool ByteReader::UsableEncoding(DwarfPointerEncoding encoding) const { } } -uint64 ByteReader::ReadEncodedPointer(const char *buffer, +uint64 ByteReader::ReadEncodedPointer(const uint8_t *buffer, DwarfPointerEncoding encoding, size_t *len) const { // UsableEncoding doesn't approve of DW_EH_PE_omit, so we shouldn't @@ -129,7 +130,7 @@ uint64 ByteReader::ReadEncodedPointer(const char *buffer, // Round up to the next boundary. uint64 aligned = (offset + AddressSize() - 1) & -AddressSize(); // Convert back to a pointer. - const char *aligned_buffer = buffer_base_ + (aligned - skew); + const uint8_t *aligned_buffer = buffer_base_ + (aligned - skew); // Finally, store the length and actually fetch the pointer. *len = aligned_buffer - buffer + AddressSize(); return ReadAddress(aligned_buffer); @@ -242,4 +243,8 @@ uint64 ByteReader::ReadEncodedPointer(const char *buffer, return pointer; } +Endianness ByteReader::GetEndianness() const { + return endian_; +} + } // namespace dwarf2reader diff --git a/3rdParty/Breakpad/src/common/dwarf/bytereader.h b/3rdParty/Breakpad/src/common/dwarf/bytereader.h index e389427..59d4303 100644 --- a/3rdParty/Breakpad/src/common/dwarf/bytereader.h +++ b/3rdParty/Breakpad/src/common/dwarf/bytereader.h @@ -31,7 +31,10 @@ #ifndef COMMON_DWARF_BYTEREADER_H__ #define COMMON_DWARF_BYTEREADER_H__ +#include <stdint.h> + #include <string> + #include "common/dwarf/types.h" #include "common/dwarf/dwarf2enums.h" @@ -59,22 +62,22 @@ class ByteReader { // Read a single byte from BUFFER and return it as an unsigned 8 bit // number. - uint8 ReadOneByte(const char* buffer) const; + uint8 ReadOneByte(const uint8_t *buffer) const; // Read two bytes from BUFFER and return them as an unsigned 16 bit // number, using this ByteReader's endianness. - uint16 ReadTwoBytes(const char* buffer) const; + uint16 ReadTwoBytes(const uint8_t *buffer) const; // Read four bytes from BUFFER and return them as an unsigned 32 bit // number, using this ByteReader's endianness. This function returns // a uint64 so that it is compatible with ReadAddress and // ReadOffset. The number it returns will never be outside the range // of an unsigned 32 bit integer. - uint64 ReadFourBytes(const char* buffer) const; + uint64 ReadFourBytes(const uint8_t *buffer) const; // Read eight bytes from BUFFER and return them as an unsigned 64 // bit number, using this ByteReader's endianness. - uint64 ReadEightBytes(const char* buffer) const; + uint64 ReadEightBytes(const uint8_t *buffer) const; // Read an unsigned LEB128 (Little Endian Base 128) number from // BUFFER and return it as an unsigned 64 bit integer. Set LEN to @@ -93,7 +96,7 @@ class ByteReader { // In other words, we break VALUE into groups of seven bits, put // them in little-endian order, and then write them as eight-bit // bytes with the high bit on all but the last. - uint64 ReadUnsignedLEB128(const char* buffer, size_t* len) const; + uint64 ReadUnsignedLEB128(const uint8_t *buffer, size_t *len) const; // Read a signed LEB128 number from BUFFER and return it as an // signed 64 bit integer. Set LEN to the number of bytes read. @@ -112,7 +115,7 @@ class ByteReader { // In other words, we break VALUE into groups of seven bits, put // them in little-endian order, and then write them as eight-bit // bytes with the high bit on all but the last. - int64 ReadSignedLEB128(const char* buffer, size_t* len) const; + int64 ReadSignedLEB128(const uint8_t *buffer, size_t *len) const; // Indicate that addresses on this architecture are SIZE bytes long. SIZE // must be either 4 or 8. (DWARF allows addresses to be any number of @@ -135,7 +138,7 @@ class ByteReader { // Read an address from BUFFER and return it as an unsigned 64 bit // integer, respecting this ByteReader's endianness and address size. You // must call SetAddressSize before calling this function. - uint64 ReadAddress(const char* buffer) const; + uint64 ReadAddress(const uint8_t *buffer) const; // DWARF actually defines two slightly different formats: 32-bit DWARF // and 64-bit DWARF. This is *not* related to the size of registers or @@ -172,14 +175,14 @@ class ByteReader { // - The 32-bit value 0xffffffff, followed by a 64-bit byte count, // indicating that the data whose length is being measured uses // the 64-bit DWARF format. - uint64 ReadInitialLength(const char* start, size_t* len); + uint64 ReadInitialLength(const uint8_t *start, size_t *len); // Read an offset from BUFFER and return it as an unsigned 64 bit // integer, respecting the ByteReader's endianness. In 32-bit DWARF, the // offset is 4 bytes long; in 64-bit DWARF, the offset is eight bytes // long. You must call ReadInitialLength or SetOffsetSize before calling // this function; see the comments above for details. - uint64 ReadOffset(const char* buffer) const; + uint64 ReadOffset(const uint8_t *buffer) const; // Return the current offset size, in bytes. // A return value of 4 indicates that we are reading 32-bit DWARF. @@ -234,7 +237,7 @@ class ByteReader { // is BUFFER_BASE. This allows us to find the address that a given // byte in our buffer would have when loaded into the program the // data describes. We need this to resolve DW_EH_PE_pcrel pointers. - void SetCFIDataBase(uint64 section_base, const char *buffer_base); + void SetCFIDataBase(uint64 section_base, const uint8_t *buffer_base); // Indicate that the base address of the program's ".text" section // is TEXT_BASE. We need this to resolve DW_EH_PE_textrel pointers. @@ -273,13 +276,15 @@ class ByteReader { // base address this reader hasn't been given, so you should check // with ValidEncoding and UsableEncoding first if you would rather // die in a more helpful way. - uint64 ReadEncodedPointer(const char *buffer, DwarfPointerEncoding encoding, + uint64 ReadEncodedPointer(const uint8_t *buffer, + DwarfPointerEncoding encoding, size_t *len) const; + Endianness GetEndianness() const; private: // Function pointer type for our address and offset readers. - typedef uint64 (ByteReader::*AddressReader)(const char*) const; + typedef uint64 (ByteReader::*AddressReader)(const uint8_t *) const; // Read an offset from BUFFER and return it as an unsigned 64 bit // integer. DWARF2/3 define offsets as either 4 or 8 bytes, @@ -302,7 +307,7 @@ class ByteReader { bool have_section_base_, have_text_base_, have_data_base_; bool have_function_base_; uint64 section_base_, text_base_, data_base_, function_base_; - const char *buffer_base_; + const uint8_t *buffer_base_; }; } // namespace dwarf2reader diff --git a/3rdParty/Breakpad/src/common/dwarf/bytereader_unittest.cc b/3rdParty/Breakpad/src/common/dwarf/bytereader_unittest.cc new file mode 100644 index 0000000..e66062d --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf/bytereader_unittest.cc @@ -0,0 +1,707 @@ +// Copyright (c) 2010, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// bytereader_unittest.cc: Unit tests for dwarf2reader::ByteReader + +#include <stdint.h> + +#include <string> + +#include "breakpad_googletest_includes.h" +#include "common/dwarf/bytereader.h" +#include "common/dwarf/bytereader-inl.h" +#include "common/dwarf/cfi_assembler.h" +#include "common/using_std_string.h" + +using dwarf2reader::ByteReader; +using dwarf2reader::DwarfPointerEncoding; +using dwarf2reader::ENDIANNESS_BIG; +using dwarf2reader::ENDIANNESS_LITTLE; +using google_breakpad::CFISection; +using google_breakpad::test_assembler::Label; +using google_breakpad::test_assembler::kBigEndian; +using google_breakpad::test_assembler::kLittleEndian; +using google_breakpad::test_assembler::Section; +using testing::Test; + +struct ReaderFixture { + string contents; + size_t pointer_size; +}; + +class Reader: public ReaderFixture, public Test { }; +class ReaderDeathTest: public ReaderFixture, public Test { }; + +TEST_F(Reader, SimpleConstructor) { + ByteReader reader(ENDIANNESS_BIG); + reader.SetAddressSize(4); + CFISection section(kBigEndian, 4); + section + .D8(0xc0) + .D16(0xcf0d) + .D32(0x96fdd219) + .D64(0xbbf55fef0825f117ULL) + .ULEB128(0xa0927048ba8121afULL) + .LEB128(-0x4f337badf4483f83LL) + .D32(0xfec319c9); + ASSERT_TRUE(section.GetContents(&contents)); + const uint8_t *data = reinterpret_cast<const uint8_t *>(contents.data()); + EXPECT_EQ(0xc0U, reader.ReadOneByte(data)); + EXPECT_EQ(0xcf0dU, reader.ReadTwoBytes(data + 1)); + EXPECT_EQ(0x96fdd219U, reader.ReadFourBytes(data + 3)); + EXPECT_EQ(0xbbf55fef0825f117ULL, reader.ReadEightBytes(data + 7)); + size_t leb128_size; + EXPECT_EQ(0xa0927048ba8121afULL, + reader.ReadUnsignedLEB128(data + 15, &leb128_size)); + EXPECT_EQ(10U, leb128_size); + EXPECT_EQ(-0x4f337badf4483f83LL, + reader.ReadSignedLEB128(data + 25, &leb128_size)); + EXPECT_EQ(10U, leb128_size); + EXPECT_EQ(0xfec319c9, reader.ReadAddress(data + 35)); +} + +TEST_F(Reader, ValidEncodings) { + ByteReader reader(ENDIANNESS_LITTLE); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_absptr))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_omit))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_aligned))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_uleb128))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata2))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata4))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata8))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sleb128))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata2))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata4))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata8))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_absptr | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_uleb128 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata2 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata4 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata8 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sleb128 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata2 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata4 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata8 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_absptr | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_uleb128 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata2 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata4 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata8 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sleb128 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata2 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata4 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata8 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_absptr | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_uleb128 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata2 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata4 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata8 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sleb128 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata2 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata4 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata8 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_absptr | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_uleb128 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata2 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata4 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_udata8 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sleb128 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata2 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata4 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_sdata8 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_absptr | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_uleb128 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_udata2 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_udata4 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_udata8 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sleb128 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sdata2 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sdata4 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sdata8 | + dwarf2reader::DW_EH_PE_pcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_absptr | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_uleb128 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_udata2 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_udata4 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_udata8 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sleb128 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sdata2 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sdata4 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sdata8 | + dwarf2reader::DW_EH_PE_textrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_absptr | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_uleb128 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_udata2 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_udata4 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_udata8 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sleb128 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sdata2 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sdata4 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sdata8 | + dwarf2reader::DW_EH_PE_datarel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_absptr | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_uleb128 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_udata2 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_udata4 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_udata8 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sleb128 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sdata2 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sdata4 | + dwarf2reader::DW_EH_PE_funcrel))); + EXPECT_TRUE(reader.ValidEncoding( + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect | + dwarf2reader::DW_EH_PE_sdata8 | + dwarf2reader::DW_EH_PE_funcrel))); + + EXPECT_FALSE(reader.ValidEncoding(DwarfPointerEncoding(0x05))); + EXPECT_FALSE(reader.ValidEncoding(DwarfPointerEncoding(0x07))); + EXPECT_FALSE(reader.ValidEncoding(DwarfPointerEncoding(0x0d))); + EXPECT_FALSE(reader.ValidEncoding(DwarfPointerEncoding(0x0f))); + EXPECT_FALSE(reader.ValidEncoding(DwarfPointerEncoding(0x51))); + EXPECT_FALSE(reader.ValidEncoding(DwarfPointerEncoding(0x60))); + EXPECT_FALSE(reader.ValidEncoding(DwarfPointerEncoding(0x70))); + EXPECT_FALSE(reader.ValidEncoding(DwarfPointerEncoding(0xf0))); + EXPECT_FALSE(reader.ValidEncoding(DwarfPointerEncoding(0xd0))); +} + +TEST_F(ReaderDeathTest, DW_EH_PE_omit) { + static const uint8_t data[] = { 42 }; + ByteReader reader(ENDIANNESS_BIG); + reader.SetAddressSize(4); + EXPECT_DEATH(reader.ReadEncodedPointer(data, dwarf2reader::DW_EH_PE_omit, + &pointer_size), + "encoding != DW_EH_PE_omit"); +} + +TEST_F(Reader, DW_EH_PE_absptr4) { + static const uint8_t data[] = { 0x27, 0x57, 0xea, 0x40 }; + ByteReader reader(ENDIANNESS_LITTLE); + reader.SetAddressSize(4); + EXPECT_EQ(0x40ea5727U, + reader.ReadEncodedPointer(data, dwarf2reader::DW_EH_PE_absptr, + &pointer_size)); + EXPECT_EQ(4U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_absptr8) { + static const uint8_t data[] = { + 0x60, 0x27, 0x57, 0xea, 0x40, 0xc2, 0x98, 0x05, 0x01, 0x50 + }; + ByteReader reader(ENDIANNESS_LITTLE); + reader.SetAddressSize(8); + EXPECT_EQ(0x010598c240ea5727ULL, + reader.ReadEncodedPointer(data + 1, dwarf2reader::DW_EH_PE_absptr, + &pointer_size)); + EXPECT_EQ(8U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_uleb128) { + static const uint8_t data[] = { 0x81, 0x84, 0x4c }; + ByteReader reader(ENDIANNESS_LITTLE); + reader.SetAddressSize(4); + EXPECT_EQ(0x130201U, + reader.ReadEncodedPointer(data, dwarf2reader::DW_EH_PE_uleb128, + &pointer_size)); + EXPECT_EQ(3U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_udata2) { + static const uint8_t data[] = { 0xf4, 0x8d }; + ByteReader reader(ENDIANNESS_BIG); + reader.SetAddressSize(4); + EXPECT_EQ(0xf48dU, + reader.ReadEncodedPointer(data, dwarf2reader::DW_EH_PE_udata2, + &pointer_size)); + EXPECT_EQ(2U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_udata4) { + static const uint8_t data[] = { 0xb2, 0x68, 0xa5, 0x62, 0x8f, 0x8b }; + ByteReader reader(ENDIANNESS_BIG); + reader.SetAddressSize(8); + EXPECT_EQ(0xa5628f8b, + reader.ReadEncodedPointer(data + 2, dwarf2reader::DW_EH_PE_udata4, + &pointer_size)); + EXPECT_EQ(4U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_udata8Addr8) { + static const uint8_t data[] = { + 0x27, 0x04, 0x73, 0x04, 0x69, 0x9f, 0x19, 0xed, 0x8f, 0xfe + }; + ByteReader reader(ENDIANNESS_LITTLE); + reader.SetAddressSize(8); + EXPECT_EQ(0x8fed199f69047304ULL, + reader.ReadEncodedPointer(data + 1, dwarf2reader::DW_EH_PE_udata8, + &pointer_size)); + EXPECT_EQ(8U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_udata8Addr4) { + static const uint8_t data[] = { + 0x27, 0x04, 0x73, 0x04, 0x69, 0x9f, 0x19, 0xed, 0x8f, 0xfe + }; + ByteReader reader(ENDIANNESS_LITTLE); + reader.SetAddressSize(4); + EXPECT_EQ(0x69047304ULL, + reader.ReadEncodedPointer(data + 1, dwarf2reader::DW_EH_PE_udata8, + &pointer_size)); + EXPECT_EQ(8U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_sleb128) { + static const uint8_t data[] = { 0x42, 0xff, 0xfb, 0x73 }; + ByteReader reader(ENDIANNESS_BIG); + reader.SetAddressSize(4); + EXPECT_EQ(-0x030201U & 0xffffffff, + reader.ReadEncodedPointer(data + 1, dwarf2reader::DW_EH_PE_sleb128, + &pointer_size)); + EXPECT_EQ(3U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_sdata2) { + static const uint8_t data[] = { 0xb9, 0xbf }; + ByteReader reader(ENDIANNESS_LITTLE); + reader.SetAddressSize(8); + EXPECT_EQ(0xffffffffffffbfb9ULL, + reader.ReadEncodedPointer(data, dwarf2reader::DW_EH_PE_sdata2, + &pointer_size)); + EXPECT_EQ(2U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_sdata4) { + static const uint8_t data[] = { 0xa0, 0xca, 0xf2, 0xb8, 0xc2, 0xad }; + ByteReader reader(ENDIANNESS_LITTLE); + reader.SetAddressSize(8); + EXPECT_EQ(0xffffffffadc2b8f2ULL, + reader.ReadEncodedPointer(data + 2, dwarf2reader::DW_EH_PE_sdata4, + &pointer_size)); + EXPECT_EQ(4U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_sdata8) { + static const uint8_t data[] = { + 0xf6, 0x66, 0x57, 0x79, 0xe0, 0x0c, 0x9b, 0x26, 0x87 + }; + ByteReader reader(ENDIANNESS_LITTLE); + reader.SetAddressSize(8); + EXPECT_EQ(0x87269b0ce0795766ULL, + reader.ReadEncodedPointer(data + 1, dwarf2reader::DW_EH_PE_sdata8, + &pointer_size)); + EXPECT_EQ(8U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_pcrel) { + static const uint8_t data[] = { + 0x4a, 0x8b, 0x1b, 0x14, 0xc8, 0xc4, 0x02, 0xce + }; + ByteReader reader(ENDIANNESS_BIG); + reader.SetAddressSize(4); + DwarfPointerEncoding encoding = + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_pcrel + | dwarf2reader::DW_EH_PE_absptr); + reader.SetCFIDataBase(0x89951377, data); + EXPECT_EQ(0x89951377 + 3 + 0x14c8c402, + reader.ReadEncodedPointer(data + 3, encoding, &pointer_size)); + EXPECT_EQ(4U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_textrel) { + static const uint8_t data[] = { + 0xd9, 0x0d, 0x05, 0x17, 0xc9, 0x7a, 0x42, 0x1e + }; + ByteReader reader(ENDIANNESS_LITTLE); + reader.SetAddressSize(4); + reader.SetTextBase(0xb91beaf0); + DwarfPointerEncoding encoding = + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_textrel + | dwarf2reader::DW_EH_PE_sdata2); + EXPECT_EQ((0xb91beaf0 + 0xffffc917) & 0xffffffff, + reader.ReadEncodedPointer(data + 3, encoding, &pointer_size)); + EXPECT_EQ(2U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_datarel) { + static const uint8_t data[] = { + 0x16, 0xf2, 0xbb, 0x82, 0x68, 0xa7, 0xbc, 0x39 + }; + ByteReader reader(ENDIANNESS_BIG); + reader.SetAddressSize(8); + reader.SetDataBase(0xbef308bd25ce74f0ULL); + DwarfPointerEncoding encoding = + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_datarel + | dwarf2reader::DW_EH_PE_sleb128); + EXPECT_EQ(0xbef308bd25ce74f0ULL + 0xfffffffffffa013bULL, + reader.ReadEncodedPointer(data + 2, encoding, &pointer_size)); + EXPECT_EQ(3U, pointer_size); +} + +TEST_F(Reader, DW_EH_PE_funcrel) { + static const uint8_t data[] = { + 0x84, 0xf8, 0x14, 0x01, 0x61, 0xd1, 0x48, 0xc9 + }; + ByteReader reader(ENDIANNESS_BIG); + reader.SetAddressSize(4); + reader.SetFunctionBase(0x823c3520); + DwarfPointerEncoding encoding = + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_funcrel + | dwarf2reader::DW_EH_PE_udata2); + EXPECT_EQ(0x823c3520 + 0xd148, + reader.ReadEncodedPointer(data + 5, encoding, &pointer_size)); + EXPECT_EQ(2U, pointer_size); +} + +TEST(UsableBase, CFI) { + static const uint8_t data[] = { 0x42 }; + ByteReader reader(ENDIANNESS_BIG); + reader.SetCFIDataBase(0xb31cbd20, data); + EXPECT_TRUE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_absptr)); + EXPECT_TRUE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_pcrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_textrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_datarel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_funcrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_omit)); + EXPECT_FALSE(reader.UsableEncoding(DwarfPointerEncoding(0x60))); +} + +TEST(UsableBase, Text) { + ByteReader reader(ENDIANNESS_BIG); + reader.SetTextBase(0xa899ccb9); + EXPECT_TRUE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_absptr)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_pcrel)); + EXPECT_TRUE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_textrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_datarel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_funcrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_omit)); + EXPECT_FALSE(reader.UsableEncoding(DwarfPointerEncoding(0x60))); +} + +TEST(UsableBase, Data) { + ByteReader reader(ENDIANNESS_BIG); + reader.SetDataBase(0xf7b10bcd); + EXPECT_TRUE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_absptr)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_pcrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_textrel)); + EXPECT_TRUE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_datarel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_funcrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_omit)); + EXPECT_FALSE(reader.UsableEncoding(DwarfPointerEncoding(0x60))); +} + +TEST(UsableBase, Function) { + ByteReader reader(ENDIANNESS_BIG); + reader.SetFunctionBase(0xc2c0ed81); + EXPECT_TRUE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_absptr)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_pcrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_textrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_datarel)); + EXPECT_TRUE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_funcrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_omit)); + EXPECT_FALSE(reader.UsableEncoding(DwarfPointerEncoding(0x60))); +} + +TEST(UsableBase, ClearFunction) { + ByteReader reader(ENDIANNESS_BIG); + reader.SetFunctionBase(0xc2c0ed81); + reader.ClearFunctionBase(); + EXPECT_TRUE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_absptr)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_pcrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_textrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_datarel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_funcrel)); + EXPECT_FALSE(reader.UsableEncoding(dwarf2reader::DW_EH_PE_omit)); + EXPECT_FALSE(reader.UsableEncoding(DwarfPointerEncoding(0x60))); +} + +struct AlignedFixture { + AlignedFixture() : reader(ENDIANNESS_BIG) { reader.SetAddressSize(4); } + static const uint8_t data[10]; + ByteReader reader; + size_t pointer_size; +}; + +const uint8_t AlignedFixture::data[10] = { + 0xfe, 0x6e, 0x93, 0xd8, 0x34, 0xd5, 0x1c, 0xd3, 0xac, 0x2b +}; + +class Aligned: public AlignedFixture, public Test { }; + +TEST_F(Aligned, DW_EH_PE_aligned0) { + reader.SetCFIDataBase(0xb440305c, data); + EXPECT_EQ(0xfe6e93d8U, + reader.ReadEncodedPointer(data, dwarf2reader::DW_EH_PE_aligned, + &pointer_size)); + EXPECT_EQ(4U, pointer_size); +} + +TEST_F(Aligned, DW_EH_PE_aligned1) { + reader.SetCFIDataBase(0xb440305d, data); + EXPECT_EQ(0xd834d51cU, + reader.ReadEncodedPointer(data, dwarf2reader::DW_EH_PE_aligned, + &pointer_size)); + EXPECT_EQ(7U, pointer_size); +} + +TEST_F(Aligned, DW_EH_PE_aligned2) { + reader.SetCFIDataBase(0xb440305e, data); + EXPECT_EQ(0x93d834d5U, + reader.ReadEncodedPointer(data, dwarf2reader::DW_EH_PE_aligned, + &pointer_size)); + EXPECT_EQ(6U, pointer_size); +} + +TEST_F(Aligned, DW_EH_PE_aligned3) { + reader.SetCFIDataBase(0xb440305f, data); + EXPECT_EQ(0x6e93d834U, + reader.ReadEncodedPointer(data, dwarf2reader::DW_EH_PE_aligned, + &pointer_size)); + EXPECT_EQ(5U, pointer_size); +} + +TEST_F(Aligned, DW_EH_PE_aligned11) { + reader.SetCFIDataBase(0xb4403061, data); + EXPECT_EQ(0xd834d51cU, + reader.ReadEncodedPointer(data + 1, + dwarf2reader::DW_EH_PE_aligned, + &pointer_size)); + EXPECT_EQ(6U, pointer_size); +} + +TEST_F(Aligned, DW_EH_PE_aligned30) { + reader.SetCFIDataBase(0xb4403063, data); + EXPECT_EQ(0x6e93d834U, + reader.ReadEncodedPointer(data + 1, + dwarf2reader::DW_EH_PE_aligned, + &pointer_size)); + EXPECT_EQ(4U, pointer_size); +} + +TEST_F(Aligned, DW_EH_PE_aligned23) { + reader.SetCFIDataBase(0xb4403062, data); + EXPECT_EQ(0x1cd3ac2bU, + reader.ReadEncodedPointer(data + 3, + dwarf2reader::DW_EH_PE_aligned, + &pointer_size)); + EXPECT_EQ(7U, pointer_size); +} + +TEST_F(Aligned, DW_EH_PE_aligned03) { + reader.SetCFIDataBase(0xb4403064, data); + EXPECT_EQ(0x34d51cd3U, + reader.ReadEncodedPointer(data + 3, + dwarf2reader::DW_EH_PE_aligned, + &pointer_size)); + EXPECT_EQ(5U, pointer_size); +} diff --git a/3rdParty/Breakpad/src/common/dwarf/cfi_assembler.cc b/3rdParty/Breakpad/src/common/dwarf/cfi_assembler.cc new file mode 100644 index 0000000..2dc2208 --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf/cfi_assembler.cc @@ -0,0 +1,204 @@ +// Copyright (c) 2010, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// cfi_assembler.cc: Implementation of google_breakpad::CFISection class. +// See cfi_assembler.h for details. + +#include "common/dwarf/cfi_assembler.h" + +#include <assert.h> +#include <stdlib.h> + +namespace google_breakpad { + +using dwarf2reader::DwarfPointerEncoding; + +CFISection &CFISection::CIEHeader(uint64_t code_alignment_factor, + int data_alignment_factor, + unsigned return_address_register, + uint8_t version, + const string &augmentation, + bool dwarf64, + uint8_t address_size, + uint8_t segment_size) { + assert(!entry_length_); + entry_length_ = new PendingLength(); + in_fde_ = false; + + if (dwarf64) { + D32(kDwarf64InitialLengthMarker); + D64(entry_length_->length); + entry_length_->start = Here(); + D64(eh_frame_ ? kEHFrame64CIEIdentifier : kDwarf64CIEIdentifier); + } else { + D32(entry_length_->length); + entry_length_->start = Here(); + D32(eh_frame_ ? kEHFrame32CIEIdentifier : kDwarf32CIEIdentifier); + } + D8(version); + AppendCString(augmentation); + if (version >= 4) { + D8(address_size); + D8(segment_size); + } + ULEB128(code_alignment_factor); + LEB128(data_alignment_factor); + if (version == 1) + D8(return_address_register); + else + ULEB128(return_address_register); + return *this; +} + +CFISection &CFISection::FDEHeader(Label cie_pointer, + uint64_t initial_location, + uint64_t address_range, + bool dwarf64) { + assert(!entry_length_); + entry_length_ = new PendingLength(); + in_fde_ = true; + fde_start_address_ = initial_location; + + if (dwarf64) { + D32(0xffffffff); + D64(entry_length_->length); + entry_length_->start = Here(); + if (eh_frame_) + D64(Here() - cie_pointer); + else + D64(cie_pointer); + } else { + D32(entry_length_->length); + entry_length_->start = Here(); + if (eh_frame_) + D32(Here() - cie_pointer); + else + D32(cie_pointer); + } + EncodedPointer(initial_location); + // The FDE length in an .eh_frame section uses the same encoding as the + // initial location, but ignores the base address (selected by the upper + // nybble of the encoding), as it's a length, not an address that can be + // made relative. + EncodedPointer(address_range, + DwarfPointerEncoding(pointer_encoding_ & 0x0f)); + return *this; +} + +CFISection &CFISection::FinishEntry() { + assert(entry_length_); + Align(address_size_, dwarf2reader::DW_CFA_nop); + entry_length_->length = Here() - entry_length_->start; + delete entry_length_; + entry_length_ = NULL; + in_fde_ = false; + return *this; +} + +CFISection &CFISection::EncodedPointer(uint64_t address, + DwarfPointerEncoding encoding, + const EncodedPointerBases &bases) { + // Omitted data is extremely easy to emit. + if (encoding == dwarf2reader::DW_EH_PE_omit) + return *this; + + // If (encoding & dwarf2reader::DW_EH_PE_indirect) != 0, then we assume + // that ADDRESS is the address at which the pointer is stored --- in + // other words, that bit has no effect on how we write the pointer. + encoding = DwarfPointerEncoding(encoding & ~dwarf2reader::DW_EH_PE_indirect); + + // Find the base address to which this pointer is relative. The upper + // nybble of the encoding specifies this. + uint64_t base; + switch (encoding & 0xf0) { + case dwarf2reader::DW_EH_PE_absptr: base = 0; break; + case dwarf2reader::DW_EH_PE_pcrel: base = bases.cfi + Size(); break; + case dwarf2reader::DW_EH_PE_textrel: base = bases.text; break; + case dwarf2reader::DW_EH_PE_datarel: base = bases.data; break; + case dwarf2reader::DW_EH_PE_funcrel: base = fde_start_address_; break; + case dwarf2reader::DW_EH_PE_aligned: base = 0; break; + default: abort(); + }; + + // Make ADDRESS relative. Yes, this is appropriate even for "absptr" + // values; see gcc/unwind-pe.h. + address -= base; + + // Align the pointer, if required. + if ((encoding & 0xf0) == dwarf2reader::DW_EH_PE_aligned) + Align(AddressSize()); + + // Append ADDRESS to this section in the appropriate form. For the + // fixed-width forms, we don't need to differentiate between signed and + // unsigned encodings, because ADDRESS has already been extended to 64 + // bits before it was passed to us. + switch (encoding & 0x0f) { + case dwarf2reader::DW_EH_PE_absptr: + Address(address); + break; + + case dwarf2reader::DW_EH_PE_uleb128: + ULEB128(address); + break; + + case dwarf2reader::DW_EH_PE_sleb128: + LEB128(address); + break; + + case dwarf2reader::DW_EH_PE_udata2: + case dwarf2reader::DW_EH_PE_sdata2: + D16(address); + break; + + case dwarf2reader::DW_EH_PE_udata4: + case dwarf2reader::DW_EH_PE_sdata4: + D32(address); + break; + + case dwarf2reader::DW_EH_PE_udata8: + case dwarf2reader::DW_EH_PE_sdata8: + D64(address); + break; + + default: + abort(); + } + + return *this; +}; + +const uint32_t CFISection::kDwarf64InitialLengthMarker; +const uint32_t CFISection::kDwarf32CIEIdentifier; +const uint64_t CFISection::kDwarf64CIEIdentifier; +const uint32_t CFISection::kEHFrame32CIEIdentifier; +const uint64_t CFISection::kEHFrame64CIEIdentifier; + +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/common/dwarf/cfi_assembler.h b/3rdParty/Breakpad/src/common/dwarf/cfi_assembler.h new file mode 100644 index 0000000..bd7354d --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf/cfi_assembler.h @@ -0,0 +1,271 @@ +// -*- mode: C++ -*- + +// Copyright (c) 2010, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// cfi_assembler.h: Define CFISection, a class for creating properly +// (and improperly) formatted DWARF CFI data for unit tests. + +#ifndef PROCESSOR_CFI_ASSEMBLER_H_ +#define PROCESSOR_CFI_ASSEMBLER_H_ + +#include <string> + +#include "common/dwarf/dwarf2enums.h" +#include "common/test_assembler.h" +#include "common/using_std_string.h" +#include "google_breakpad/common/breakpad_types.h" + +namespace google_breakpad { + +using dwarf2reader::DwarfPointerEncoding; +using google_breakpad::test_assembler::Endianness; +using google_breakpad::test_assembler::Label; +using google_breakpad::test_assembler::Section; + +class CFISection: public Section { + public: + + // CFI augmentation strings beginning with 'z', defined by the + // Linux/IA-64 C++ ABI, can specify interesting encodings for + // addresses appearing in FDE headers and call frame instructions (and + // for additional fields whose presence the augmentation string + // specifies). In particular, pointers can be specified to be relative + // to various base address: the start of the .text section, the + // location holding the address itself, and so on. These allow the + // frame data to be position-independent even when they live in + // write-protected pages. These variants are specified at the + // following two URLs: + // + // http://refspecs.linux-foundation.org/LSB_4.0.0/LSB-Core-generic/LSB-Core-generic/dwarfext.html + // http://refspecs.linux-foundation.org/LSB_4.0.0/LSB-Core-generic/LSB-Core-generic/ehframechpt.html + // + // CFISection leaves the production of well-formed 'z'-augmented CIEs and + // FDEs to the user, but does provide EncodedPointer, to emit + // properly-encoded addresses for a given pointer encoding. + // EncodedPointer uses an instance of this structure to find the base + // addresses it should use; you can establish a default for all encoded + // pointers appended to this section with SetEncodedPointerBases. + struct EncodedPointerBases { + EncodedPointerBases() : cfi(), text(), data() { } + + // The starting address of this CFI section in memory, for + // DW_EH_PE_pcrel. DW_EH_PE_pcrel pointers may only be used in data + // that has is loaded into the program's address space. + uint64_t cfi; + + // The starting address of this file's .text section, for DW_EH_PE_textrel. + uint64_t text; + + // The starting address of this file's .got or .eh_frame_hdr section, + // for DW_EH_PE_datarel. + uint64_t data; + }; + + // Create a CFISection whose endianness is ENDIANNESS, and where + // machine addresses are ADDRESS_SIZE bytes long. If EH_FRAME is + // true, use the .eh_frame format, as described by the Linux + // Standards Base Core Specification, instead of the DWARF CFI + // format. + CFISection(Endianness endianness, size_t address_size, + bool eh_frame = false) + : Section(endianness), address_size_(address_size), eh_frame_(eh_frame), + pointer_encoding_(dwarf2reader::DW_EH_PE_absptr), + encoded_pointer_bases_(), entry_length_(NULL), in_fde_(false) { + // The 'start', 'Here', and 'Mark' members of a CFISection all refer + // to section offsets. + start() = 0; + } + + // Return this CFISection's address size. + size_t AddressSize() const { return address_size_; } + + // Return true if this CFISection uses the .eh_frame format, or + // false if it contains ordinary DWARF CFI data. + bool ContainsEHFrame() const { return eh_frame_; } + + // Use ENCODING for pointers in calls to FDEHeader and EncodedPointer. + void SetPointerEncoding(DwarfPointerEncoding encoding) { + pointer_encoding_ = encoding; + } + + // Use the addresses in BASES as the base addresses for encoded + // pointers in subsequent calls to FDEHeader or EncodedPointer. + // This function makes a copy of BASES. + void SetEncodedPointerBases(const EncodedPointerBases &bases) { + encoded_pointer_bases_ = bases; + } + + // Append a Common Information Entry header to this section with the + // given values. If dwarf64 is true, use the 64-bit DWARF initial + // length format for the CIE's initial length. Return a reference to + // this section. You should call FinishEntry after writing the last + // instruction for the CIE. + // + // Before calling this function, you will typically want to use Mark + // or Here to make a label to pass to FDEHeader that refers to this + // CIE's position in the section. + CFISection &CIEHeader(uint64_t code_alignment_factor, + int data_alignment_factor, + unsigned return_address_register, + uint8_t version = 3, + const string &augmentation = "", + bool dwarf64 = false, + uint8_t address_size = 8, + uint8_t segment_size = 0); + + // Append a Frame Description Entry header to this section with the + // given values. If dwarf64 is true, use the 64-bit DWARF initial + // length format for the CIE's initial length. Return a reference to + // this section. You should call FinishEntry after writing the last + // instruction for the CIE. + // + // This function doesn't support entries that are longer than + // 0xffffff00 bytes. (The "initial length" is always a 32-bit + // value.) Nor does it support .debug_frame sections longer than + // 0xffffff00 bytes. + CFISection &FDEHeader(Label cie_pointer, + uint64_t initial_location, + uint64_t address_range, + bool dwarf64 = false); + + // Note the current position as the end of the last CIE or FDE we + // started, after padding with DW_CFA_nops for alignment. This + // defines the label representing the entry's length, cited in the + // entry's header. Return a reference to this section. + CFISection &FinishEntry(); + + // Append the contents of BLOCK as a DW_FORM_block value: an + // unsigned LEB128 length, followed by that many bytes of data. + CFISection &Block(const string &block) { + ULEB128(block.size()); + Append(block); + return *this; + } + + // Append ADDRESS to this section, in the appropriate size and + // endianness. Return a reference to this section. + CFISection &Address(uint64_t address) { + Section::Append(endianness(), address_size_, address); + return *this; + } + CFISection &Address(Label address) { + Section::Append(endianness(), address_size_, address); + return *this; + } + + // Append ADDRESS to this section, using ENCODING and BASES. ENCODING + // defaults to this section's default encoding, established by + // SetPointerEncoding. BASES defaults to this section's bases, set by + // SetEncodedPointerBases. If the DW_EH_PE_indirect bit is set in the + // encoding, assume that ADDRESS is where the true address is stored. + // Return a reference to this section. + // + // (C++ doesn't let me use default arguments here, because I want to + // refer to members of *this in the default argument expression.) + CFISection &EncodedPointer(uint64_t address) { + return EncodedPointer(address, pointer_encoding_, encoded_pointer_bases_); + } + CFISection &EncodedPointer(uint64_t address, DwarfPointerEncoding encoding) { + return EncodedPointer(address, encoding, encoded_pointer_bases_); + } + CFISection &EncodedPointer(uint64_t address, DwarfPointerEncoding encoding, + const EncodedPointerBases &bases); + + // Restate some member functions, to keep chaining working nicely. + CFISection &Mark(Label *label) { Section::Mark(label); return *this; } + CFISection &D8(uint8_t v) { Section::D8(v); return *this; } + CFISection &D16(uint16_t v) { Section::D16(v); return *this; } + CFISection &D16(Label v) { Section::D16(v); return *this; } + CFISection &D32(uint32_t v) { Section::D32(v); return *this; } + CFISection &D32(const Label &v) { Section::D32(v); return *this; } + CFISection &D64(uint64_t v) { Section::D64(v); return *this; } + CFISection &D64(const Label &v) { Section::D64(v); return *this; } + CFISection &LEB128(long long v) { Section::LEB128(v); return *this; } + CFISection &ULEB128(uint64_t v) { Section::ULEB128(v); return *this; } + + private: + // A length value that we've appended to the section, but is not yet + // known. LENGTH is the appended value; START is a label referring + // to the start of the data whose length was cited. + struct PendingLength { + Label length; + Label start; + }; + + // Constants used in CFI/.eh_frame data: + + // If the first four bytes of an "initial length" are this constant, then + // the data uses the 64-bit DWARF format, and the length itself is the + // subsequent eight bytes. + static const uint32_t kDwarf64InitialLengthMarker = 0xffffffffU; + + // The CIE identifier for 32- and 64-bit DWARF CFI and .eh_frame data. + static const uint32_t kDwarf32CIEIdentifier = ~(uint32_t)0; + static const uint64_t kDwarf64CIEIdentifier = ~(uint64_t)0; + static const uint32_t kEHFrame32CIEIdentifier = 0; + static const uint64_t kEHFrame64CIEIdentifier = 0; + + // The size of a machine address for the data in this section. + size_t address_size_; + + // If true, we are generating a Linux .eh_frame section, instead of + // a standard DWARF .debug_frame section. + bool eh_frame_; + + // The encoding to use for FDE pointers. + DwarfPointerEncoding pointer_encoding_; + + // The base addresses to use when emitting encoded pointers. + EncodedPointerBases encoded_pointer_bases_; + + // The length value for the current entry. + // + // Oddly, this must be dynamically allocated. Labels never get new + // values; they only acquire constraints on the value they already + // have, or assert if you assign them something incompatible. So + // each header needs truly fresh Label objects to cite in their + // headers and track their positions. The alternative is explicit + // destructor invocation and a placement new. Ick. + PendingLength *entry_length_; + + // True if we are currently emitting an FDE --- that is, we have + // called FDEHeader but have not yet called FinishEntry. + bool in_fde_; + + // If in_fde_ is true, this is its starting address. We use this for + // emitting DW_EH_PE_funcrel pointers. + uint64_t fde_start_address_; +}; + +} // namespace google_breakpad + +#endif // PROCESSOR_CFI_ASSEMBLER_H_ diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.cc b/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.cc index c741d69..94542b5 100644 --- a/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.cc +++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.cc @@ -32,6 +32,7 @@ // See dwarf2diehandler.h for details. #include <assert.h> +#include <stdint.h> #include <string> @@ -57,8 +58,7 @@ bool DIEDispatcher::StartCompilationUnit(uint64 offset, uint8 address_size, dwarf_version); } -bool DIEDispatcher::StartDIE(uint64 offset, enum DwarfTag tag, - const AttributeList& attrs) { +bool DIEDispatcher::StartDIE(uint64 offset, enum DwarfTag tag) { // The stack entry for the parent of this DIE, if there is one. HandlerStack *parent = die_handlers_.empty() ? NULL : &die_handlers_.top(); @@ -82,7 +82,7 @@ bool DIEDispatcher::StartDIE(uint64 offset, enum DwarfTag tag, if (parent) { if (parent->handler_) // Ask the parent to find a handler. - handler = parent->handler_->FindChildHandler(offset, tag, attrs); + handler = parent->handler_->FindChildHandler(offset, tag); else // No parent handler means we're not interested in any of our // children. @@ -92,7 +92,7 @@ bool DIEDispatcher::StartDIE(uint64 offset, enum DwarfTag tag, // decides whether to visit it, but the root DIE has no parent // handler, so we have a special method on the root DIE handler // itself to decide. - if (root_handler_->StartRootDIE(offset, tag, attrs)) + if (root_handler_->StartRootDIE(offset, tag)) handler = root_handler_; else handler = NULL; @@ -168,7 +168,7 @@ void DIEDispatcher::ProcessAttributeReference(uint64 offset, void DIEDispatcher::ProcessAttributeBuffer(uint64 offset, enum DwarfAttribute attr, enum DwarfForm form, - const char* data, + const uint8_t *data, uint64 len) { HandlerStack ¤t = die_handlers_.top(); // This had better be an attribute of the DIE we were meant to handle. diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.h b/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.h index 12b8d3a..a1e589a 100644 --- a/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.h +++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.h @@ -156,6 +156,8 @@ #ifndef COMMON_DWARF_DWARF2DIEHANDLER_H__ #define COMMON_DWARF_DWARF2DIEHANDLER_H__ +#include <stdint.h> + #include <stack> #include <string> @@ -206,7 +208,7 @@ class DIEHandler { uint64 data) { } virtual void ProcessAttributeBuffer(enum DwarfAttribute attr, enum DwarfForm form, - const char* data, + const uint8_t *data, uint64 len) { } virtual void ProcessAttributeString(enum DwarfAttribute attr, enum DwarfForm form, @@ -239,12 +241,10 @@ class DIEHandler { // that child DIE (and all its descendants). // // OFFSET is the offset of the child; TAG indicates what kind of DIE - // it is; and ATTRS is the list of attributes the DIE will have, and - // their forms (their values are not provided). + // it is. // // The default definition skips all children. - virtual DIEHandler *FindChildHandler(uint64 offset, enum DwarfTag tag, - const AttributeList &attrs) { + virtual DIEHandler *FindChildHandler(uint64 offset, enum DwarfTag tag) { return NULL; } @@ -280,8 +280,7 @@ class RootDIEHandler: public DIEHandler { // unit. // // The default definition elects to visit the root DIE. - virtual bool StartRootDIE(uint64 offset, enum DwarfTag tag, - const AttributeList& attrs) { return true; } + virtual bool StartRootDIE(uint64 offset, enum DwarfTag tag) { return true; } }; class DIEDispatcher: public Dwarf2Handler { @@ -296,8 +295,7 @@ class DIEDispatcher: public Dwarf2Handler { bool StartCompilationUnit(uint64 offset, uint8 address_size, uint8 offset_size, uint64 cu_length, uint8 dwarf_version); - bool StartDIE(uint64 offset, enum DwarfTag tag, - const AttributeList &attrs); + bool StartDIE(uint64 offset, enum DwarfTag tag); void ProcessAttributeUnsigned(uint64 offset, enum DwarfAttribute attr, enum DwarfForm form, @@ -313,7 +311,7 @@ class DIEDispatcher: public Dwarf2Handler { void ProcessAttributeBuffer(uint64 offset, enum DwarfAttribute attr, enum DwarfForm form, - const char* data, + const uint8_t *data, uint64 len); void ProcessAttributeString(uint64 offset, enum DwarfAttribute attr, diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler_unittest.cc b/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler_unittest.cc new file mode 100644 index 0000000..db70eb3 --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler_unittest.cc @@ -0,0 +1,527 @@ +// -*- mode: c++ -*- + +// Copyright (c) 2010 Google Inc. All Rights Reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// dwarf2diehander_unittest.cc: Unit tests for google_breakpad::DIEDispatcher. + +#include <stdint.h> + +#include <string> +#include <utility> + +#include "breakpad_googletest_includes.h" + +#include "common/dwarf/dwarf2diehandler.h" +#include "common/using_std_string.h" + +using std::make_pair; + +using ::testing::_; +using ::testing::ContainerEq; +using ::testing::ElementsAreArray; +using ::testing::Eq; +using ::testing::InSequence; +using ::testing::Return; +using ::testing::Sequence; +using ::testing::StrEq; + +using dwarf2reader::DIEDispatcher; +using dwarf2reader::DIEHandler; +using dwarf2reader::DwarfAttribute; +using dwarf2reader::DwarfForm; +using dwarf2reader::DwarfTag; +using dwarf2reader::RootDIEHandler; + +class MockDIEHandler: public DIEHandler { + public: + MOCK_METHOD3(ProcessAttributeUnsigned, + void(DwarfAttribute, DwarfForm, uint64)); + MOCK_METHOD3(ProcessAttributeSigned, + void(DwarfAttribute, DwarfForm, int64)); + MOCK_METHOD3(ProcessAttributeReference, + void(DwarfAttribute, DwarfForm, uint64)); + MOCK_METHOD4(ProcessAttributeBuffer, + void(DwarfAttribute, DwarfForm, const uint8_t *, uint64)); + MOCK_METHOD3(ProcessAttributeString, + void(DwarfAttribute, DwarfForm, const string &)); + MOCK_METHOD3(ProcessAttributeSignature, + void(DwarfAttribute, DwarfForm, uint64)); + MOCK_METHOD0(EndAttributes, bool()); + MOCK_METHOD2(FindChildHandler, DIEHandler *(uint64, DwarfTag)); + MOCK_METHOD0(Finish, void()); +}; + +class MockRootDIEHandler: public RootDIEHandler { + public: + MOCK_METHOD3(ProcessAttributeUnsigned, + void(DwarfAttribute, DwarfForm, uint64)); + MOCK_METHOD3(ProcessAttributeSigned, + void(DwarfAttribute, DwarfForm, int64)); + MOCK_METHOD3(ProcessAttributeReference, + void(DwarfAttribute, DwarfForm, uint64)); + MOCK_METHOD4(ProcessAttributeBuffer, + void(DwarfAttribute, DwarfForm, const uint8_t *, uint64)); + MOCK_METHOD3(ProcessAttributeString, + void(DwarfAttribute, DwarfForm, const string &)); + MOCK_METHOD3(ProcessAttributeSignature, + void(DwarfAttribute, DwarfForm, uint64)); + MOCK_METHOD0(EndAttributes, bool()); + MOCK_METHOD2(FindChildHandler, DIEHandler *(uint64, DwarfTag)); + MOCK_METHOD0(Finish, void()); + MOCK_METHOD5(StartCompilationUnit, bool(uint64, uint8, uint8, uint64, uint8)); + MOCK_METHOD2(StartRootDIE, bool(uint64, DwarfTag)); +}; + +// If the handler elects to skip the compilation unit, the dispatcher +// should tell the reader so. +TEST(Dwarf2DIEHandler, SkipCompilationUnit) { + Sequence s; + MockRootDIEHandler mock_root_handler; + DIEDispatcher die_dispatcher(&mock_root_handler); + + EXPECT_CALL(mock_root_handler, + StartCompilationUnit(0x8d42aed77cfccf3eLL, + 0x89, 0xdc, + 0x2ecb4dc778a80f21LL, + 0x66)) + .InSequence(s) + .WillOnce(Return(false)); + + EXPECT_FALSE(die_dispatcher.StartCompilationUnit(0x8d42aed77cfccf3eLL, + 0x89, 0xdc, + 0x2ecb4dc778a80f21LL, + 0x66)); +} + +// If the handler elects to skip the root DIE, the dispatcher should +// tell the reader so. +TEST(Dwarf2DIEHandler, SkipRootDIE) { + Sequence s; + MockRootDIEHandler mock_root_handler; + DIEDispatcher die_dispatcher(&mock_root_handler); + + EXPECT_CALL(mock_root_handler, + StartCompilationUnit(0xde8994029fc8b999LL, 0xf4, 0x02, + 0xb00febffa76e2b2bLL, 0x5c)) + .InSequence(s) + .WillOnce(Return(true)); + EXPECT_CALL(mock_root_handler, + StartRootDIE(0x7d08242b4b510cf2LL, (DwarfTag) 0xb4f98da6)) + .InSequence(s) + .WillOnce(Return(false)); + + EXPECT_TRUE(die_dispatcher.StartCompilationUnit(0xde8994029fc8b999LL, + 0xf4, 0x02, + 0xb00febffa76e2b2bLL, 0x5c)); + EXPECT_FALSE(die_dispatcher.StartDIE(0x7d08242b4b510cf2LL, + (DwarfTag) 0xb4f98da6)); + die_dispatcher.EndDIE(0x7d08242b4b510cf2LL); +} + +// If the handler elects to skip the root DIE's children, the +// dispatcher should tell the reader so --- and avoid deleting the +// root handler. +TEST(Dwarf2DIEHandler, SkipRootDIEChildren) { + MockRootDIEHandler mock_root_handler; + DIEDispatcher die_dispatcher(&mock_root_handler); + + { + InSequence s; + + EXPECT_CALL(mock_root_handler, + StartCompilationUnit(0x15d6897480cc65a7LL, 0x26, 0xa0, + 0x09f8bf0767f91675LL, 0xdb)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_root_handler, + StartRootDIE(0x7d08242b4b510cf2LL, (DwarfTag) 0xb4f98da6)) + .WillOnce(Return(true)); + // Please don't tell me about my children. + EXPECT_CALL(mock_root_handler, EndAttributes()) + .WillOnce(Return(false)); + EXPECT_CALL(mock_root_handler, Finish()) + .WillOnce(Return()); + } + + EXPECT_TRUE(die_dispatcher.StartCompilationUnit(0x15d6897480cc65a7LL, + 0x26, 0xa0, + 0x09f8bf0767f91675LL, 0xdb)); + EXPECT_TRUE(die_dispatcher.StartDIE(0x7d08242b4b510cf2LL, + (DwarfTag) 0xb4f98da6)); + EXPECT_FALSE(die_dispatcher.StartDIE(0x435150ceedccda18LL, + (DwarfTag) 0xc3a17bba)); + die_dispatcher.EndDIE(0x435150ceedccda18LL); + die_dispatcher.EndDIE(0x7d08242b4b510cf2LL); +} + +// The dispatcher should pass attribute values through to the die +// handler accurately. +TEST(Dwarf2DIEHandler, PassAttributeValues) { + MockRootDIEHandler mock_root_handler; + DIEDispatcher die_dispatcher(&mock_root_handler); + + const uint8_t buffer[10] = { + 0x24, 0x24, 0x35, 0x9a, 0xca, 0xcf, 0xa8, 0x84, 0xa7, 0x18 + }; + string str = "\xc8\x26\x2e\x0d\xa4\x9c\x37\xd6\xfb\x1d"; + + // Set expectations. + { + InSequence s; + + // We'll like the compilation unit header. + EXPECT_CALL(mock_root_handler, + StartCompilationUnit(0x8d42aed77cfccf3eLL, 0x89, 0xdc, + 0x2ecb4dc778a80f21LL, 0x66)) + .WillOnce(Return(true)); + + // We'll like the root DIE. + EXPECT_CALL(mock_root_handler, + StartRootDIE(0xe2222da01e29f2a9LL, (DwarfTag) 0x9829445c)) + .WillOnce(Return(true)); + + // Expect some attribute values. + EXPECT_CALL(mock_root_handler, + ProcessAttributeUnsigned((DwarfAttribute) 0x1cc0bfed, + (DwarfForm) 0x424f1468, + 0xa592571997facda1ULL)) + .WillOnce(Return()); + EXPECT_CALL(mock_root_handler, + ProcessAttributeSigned((DwarfAttribute) 0x43694dc9, + (DwarfForm) 0xf6f78901L, + 0x92602a4e3bf1f446LL)) + .WillOnce(Return()); + EXPECT_CALL(mock_root_handler, + ProcessAttributeReference((DwarfAttribute) 0x4033e8cL, + (DwarfForm) 0xf66fbe0bL, + 0x50fddef44734fdecULL)) + .WillOnce(Return()); + EXPECT_CALL(mock_root_handler, + ProcessAttributeBuffer((DwarfAttribute) 0x25d7e0af, + (DwarfForm) 0xe99a539a, + buffer, sizeof(buffer))) + .WillOnce(Return()); + EXPECT_CALL(mock_root_handler, + ProcessAttributeString((DwarfAttribute) 0x310ed065, + (DwarfForm) 0x15762fec, + StrEq(str))) + .WillOnce(Return()); + EXPECT_CALL(mock_root_handler, + ProcessAttributeSignature((DwarfAttribute) 0x58790d72, + (DwarfForm) 0x4159f138, + 0x94682463613e6a5fULL)) + .WillOnce(Return()); + EXPECT_CALL(mock_root_handler, EndAttributes()) + .WillOnce(Return(true)); + EXPECT_CALL(mock_root_handler, FindChildHandler(_, _)) + .Times(0); + EXPECT_CALL(mock_root_handler, Finish()) + .WillOnce(Return()); + } + + // Drive the dispatcher. + + // Report the CU header. + EXPECT_TRUE(die_dispatcher.StartCompilationUnit(0x8d42aed77cfccf3eLL, + 0x89, 0xdc, + 0x2ecb4dc778a80f21LL, + 0x66)); + // Report the root DIE. + EXPECT_TRUE(die_dispatcher.StartDIE(0xe2222da01e29f2a9LL, + (DwarfTag) 0x9829445c)); + + // Report some attribute values. + die_dispatcher.ProcessAttributeUnsigned(0xe2222da01e29f2a9LL, + (DwarfAttribute) 0x1cc0bfed, + (DwarfForm) 0x424f1468, + 0xa592571997facda1ULL); + die_dispatcher.ProcessAttributeSigned(0xe2222da01e29f2a9LL, + (DwarfAttribute) 0x43694dc9, + (DwarfForm) 0xf6f78901, + 0x92602a4e3bf1f446LL); + die_dispatcher.ProcessAttributeReference(0xe2222da01e29f2a9LL, + (DwarfAttribute) 0x4033e8c, + (DwarfForm) 0xf66fbe0b, + 0x50fddef44734fdecULL); + die_dispatcher.ProcessAttributeBuffer(0xe2222da01e29f2a9LL, + (DwarfAttribute) 0x25d7e0af, + (DwarfForm) 0xe99a539a, + buffer, sizeof(buffer)); + die_dispatcher.ProcessAttributeString(0xe2222da01e29f2a9LL, + (DwarfAttribute) 0x310ed065, + (DwarfForm) 0x15762fec, + str); + die_dispatcher.ProcessAttributeSignature(0xe2222da01e29f2a9LL, + (DwarfAttribute) 0x58790d72, + (DwarfForm) 0x4159f138, + 0x94682463613e6a5fULL); + + // Finish the root DIE (and thus the CU). + die_dispatcher.EndDIE(0xe2222da01e29f2a9LL); +} + +TEST(Dwarf2DIEHandler, FindAndSkipChildren) { + MockRootDIEHandler mock_root_handler; + MockDIEHandler *mock_child1_handler = new(MockDIEHandler); + MockDIEHandler *mock_child3_handler = new(MockDIEHandler); + DIEDispatcher die_dispatcher(&mock_root_handler); + + { + InSequence s; + + // We'll like the compilation unit header. + EXPECT_CALL(mock_root_handler, + StartCompilationUnit(0x9ec1e6d05e434a0eLL, 0xeb, 0x21, + 0x47dd3c764275a216LL, 0xa5)) + .WillOnce(Return(true)); + + // Root DIE. + { + EXPECT_CALL(mock_root_handler, + StartRootDIE(0x15f0e06bdfe3c372LL, (DwarfTag) 0xf5d60c59)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_root_handler, + ProcessAttributeSigned((DwarfAttribute) 0xf779a642, + (DwarfForm) 0x2cb63027, + 0x18e744661769d08fLL)) + .WillOnce(Return()); + EXPECT_CALL(mock_root_handler, EndAttributes()) + .WillOnce(Return(true)); + + // First child DIE. + EXPECT_CALL(mock_root_handler, + FindChildHandler(0x149f644f8116fe8cLL, + (DwarfTag) 0xac2cbd8c)) + .WillOnce(Return(mock_child1_handler)); + { + EXPECT_CALL(*mock_child1_handler, + ProcessAttributeSigned((DwarfAttribute) 0xa6fd6f65, + (DwarfForm) 0xe4f64c41, + 0x1b04e5444a55fe67LL)) + .WillOnce(Return()); + EXPECT_CALL(*mock_child1_handler, EndAttributes()) + .WillOnce(Return(false)); + // Skip first grandchild DIE and first great-grandchild DIE. + EXPECT_CALL(*mock_child1_handler, Finish()) + .WillOnce(Return()); + } + + // Second child DIE. Root handler will decline to return a handler + // for this child. + EXPECT_CALL(mock_root_handler, + FindChildHandler(0x97412be24875de9dLL, + (DwarfTag) 0x505a068b)) + .WillOnce(Return((DIEHandler *) NULL)); + + // Third child DIE. + EXPECT_CALL(mock_root_handler, + FindChildHandler(0x753c964c8ab538aeLL, + (DwarfTag) 0x8c22970e)) + .WillOnce(Return(mock_child3_handler)); + { + EXPECT_CALL(*mock_child3_handler, + ProcessAttributeSigned((DwarfAttribute) 0x4e2b7cfb, + (DwarfForm) 0x610b7ae1, + 0x3ea5c609d7d7560fLL)) + .WillOnce(Return()); + EXPECT_CALL(*mock_child3_handler, EndAttributes()) + .WillOnce(Return(true)); + EXPECT_CALL(*mock_child3_handler, Finish()) + .WillOnce(Return()); + } + + EXPECT_CALL(mock_root_handler, Finish()) + .WillOnce(Return()); + } + } + + + // Drive the dispatcher. + + // Report the CU header. + EXPECT_TRUE(die_dispatcher + .StartCompilationUnit(0x9ec1e6d05e434a0eLL, 0xeb, 0x21, + 0x47dd3c764275a216LL, 0xa5)); + // Report the root DIE. + { + EXPECT_TRUE(die_dispatcher.StartDIE(0x15f0e06bdfe3c372LL, + (DwarfTag) 0xf5d60c59)); + die_dispatcher.ProcessAttributeSigned(0x15f0e06bdfe3c372LL, + (DwarfAttribute) 0xf779a642, + (DwarfForm) 0x2cb63027, + 0x18e744661769d08fLL); + + // First child DIE. + { + EXPECT_TRUE(die_dispatcher.StartDIE(0x149f644f8116fe8cLL, + (DwarfTag) 0xac2cbd8c)); + die_dispatcher.ProcessAttributeSigned(0x149f644f8116fe8cLL, + (DwarfAttribute) 0xa6fd6f65, + (DwarfForm) 0xe4f64c41, + 0x1b04e5444a55fe67LL); + + // First grandchild DIE. Will be skipped. + { + EXPECT_FALSE(die_dispatcher.StartDIE(0xd68de1ee0bd29419LL, + (DwarfTag) 0x22f05a15)); + // First great-grandchild DIE. Will be skipped without being + // mentioned to any handler. + { + EXPECT_FALSE(die_dispatcher + .StartDIE(0xb3076285d25cac25LL, + (DwarfTag) 0xcff4061b)); + die_dispatcher.EndDIE(0xb3076285d25cac25LL); + } + die_dispatcher.EndDIE(0xd68de1ee0bd29419LL); + } + die_dispatcher.EndDIE(0x149f644f8116fe8cLL); + } + + // Second child DIE. Root handler will decline to find a handler for it. + { + EXPECT_FALSE(die_dispatcher.StartDIE(0x97412be24875de9dLL, + (DwarfTag) 0x505a068b)); + die_dispatcher.EndDIE(0x97412be24875de9dLL); + } + + // Third child DIE. + { + EXPECT_TRUE(die_dispatcher.StartDIE(0x753c964c8ab538aeLL, + (DwarfTag) 0x8c22970e)); + die_dispatcher.ProcessAttributeSigned(0x753c964c8ab538aeLL, + (DwarfAttribute) 0x4e2b7cfb, + (DwarfForm) 0x610b7ae1, + 0x3ea5c609d7d7560fLL); + die_dispatcher.EndDIE(0x753c964c8ab538aeLL); + } + + // Finish the root DIE (and thus the CU). + die_dispatcher.EndDIE(0x15f0e06bdfe3c372LL); + } +} + +// The DIEDispatcher destructor is supposed to delete all handlers on +// the stack, except for the root. +TEST(Dwarf2DIEHandler, FreeHandlersOnStack) { + MockRootDIEHandler mock_root_handler; + MockDIEHandler *mock_child_handler = new(MockDIEHandler); + MockDIEHandler *mock_grandchild_handler = new(MockDIEHandler); + + { + InSequence s; + + // We'll like the compilation unit header. + EXPECT_CALL(mock_root_handler, + StartCompilationUnit(0x87b41ba8381cd71cLL, 0xff, 0x89, + 0x76d392ff393ddda2LL, 0xbf)) + .WillOnce(Return(true)); + + // Root DIE. + { + EXPECT_CALL(mock_root_handler, + StartRootDIE(0xbf13b761691ddc91LL, (DwarfTag) 0x98980361)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_root_handler, EndAttributes()) + .WillOnce(Return(true)); + + // Child DIE. + EXPECT_CALL(mock_root_handler, + FindChildHandler(0x058f09240c5fc8c9LL, + (DwarfTag) 0x898bf0d0)) + .WillOnce(Return(mock_child_handler)); + { + EXPECT_CALL(*mock_child_handler, EndAttributes()) + .WillOnce(Return(true)); + + // Grandchild DIE. + EXPECT_CALL(*mock_child_handler, + FindChildHandler(0x32dc00c9945dc0c8LL, + (DwarfTag) 0x2802d007)) + .WillOnce(Return(mock_grandchild_handler)); + { + EXPECT_CALL(*mock_grandchild_handler, + ProcessAttributeSigned((DwarfAttribute) 0x4e2b7cfb, + (DwarfForm) 0x610b7ae1, + 0x3ea5c609d7d7560fLL)) + .WillOnce(Return()); + + // At this point, we abandon the traversal, so none of the + // usual stuff should get called. + EXPECT_CALL(*mock_grandchild_handler, EndAttributes()) + .Times(0); + EXPECT_CALL(*mock_grandchild_handler, Finish()) + .Times(0); + } + + EXPECT_CALL(*mock_child_handler, Finish()) + .Times(0); + } + + EXPECT_CALL(mock_root_handler, Finish()) + .Times(0); + } + } + + // The dispatcher. + DIEDispatcher die_dispatcher(&mock_root_handler); + + // Report the CU header. + EXPECT_TRUE(die_dispatcher + .StartCompilationUnit(0x87b41ba8381cd71cLL, 0xff, 0x89, + 0x76d392ff393ddda2LL, 0xbf)); + // Report the root DIE. + { + EXPECT_TRUE(die_dispatcher.StartDIE(0xbf13b761691ddc91LL, + (DwarfTag) 0x98980361)); + + // Child DIE. + { + EXPECT_TRUE(die_dispatcher.StartDIE(0x058f09240c5fc8c9LL, + (DwarfTag) 0x898bf0d0)); + + // Grandchild DIE. + { + EXPECT_TRUE(die_dispatcher.StartDIE(0x32dc00c9945dc0c8LL, + (DwarfTag) 0x2802d007)); + die_dispatcher.ProcessAttributeSigned(0x32dc00c9945dc0c8LL, + (DwarfAttribute) 0x4e2b7cfb, + (DwarfForm) 0x610b7ae1, + 0x3ea5c609d7d7560fLL); + + // Stop the traversal abruptly, so that there will still be + // handlers on the stack when the dispatcher is destructed. + + // No EndDIE call... + } + // No EndDIE call... + } + // No EndDIE call... + } +} diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2enums.h b/3rdParty/Breakpad/src/common/dwarf/dwarf2enums.h index 5565d66..4316a89 100644 --- a/3rdParty/Breakpad/src/common/dwarf/dwarf2enums.h +++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2enums.h @@ -149,7 +149,10 @@ enum DwarfForm { DW_FORM_sec_offset = 0x17, DW_FORM_exprloc = 0x18, DW_FORM_flag_present = 0x19, - DW_FORM_ref_sig8 = 0x20 + DW_FORM_ref_sig8 = 0x20, + // Extensions for Fission. See http://gcc.gnu.org/wiki/DebugFission. + DW_FORM_GNU_addr_index = 0x1f01, + DW_FORM_GNU_str_index = 0x1f02 }; // Attribute names and codes @@ -229,6 +232,8 @@ enum DwarfAttribute { DW_AT_call_column = 0x57, DW_AT_call_file = 0x58, DW_AT_call_line = 0x59, + // DWARF 4 + DW_AT_linkage_name = 0x6e, // SGI/MIPS extensions. DW_AT_MIPS_fde = 0x2001, DW_AT_MIPS_loop_begin = 0x2002, @@ -264,6 +269,13 @@ enum DwarfAttribute { DW_AT_body_begin = 0x2105, DW_AT_body_end = 0x2106, DW_AT_GNU_vector = 0x2107, + // Extensions for Fission. See http://gcc.gnu.org/wiki/DebugFission. + DW_AT_GNU_dwo_name = 0x2130, + DW_AT_GNU_dwo_id = 0x2131, + DW_AT_GNU_ranges_base = 0x2132, + DW_AT_GNU_addr_base = 0x2133, + DW_AT_GNU_pubnames = 0x2134, + DW_AT_GNU_pubtypes = 0x2135, // VMS extensions. DW_AT_VMS_rtnbeg_pd_address = 0x2201, // UPC extension. @@ -489,9 +501,24 @@ enum DwarfOpcode { DW_OP_call_frame_cfa =0x9c, DW_OP_bit_piece =0x9d, DW_OP_lo_user =0xe0, - DW_OP_hi_user =0xff, + DW_OP_hi_user =0xff, // GNU extensions - DW_OP_GNU_push_tls_address =0xe0 + DW_OP_GNU_push_tls_address =0xe0, + // Extensions for Fission. See http://gcc.gnu.org/wiki/DebugFission. + DW_OP_GNU_addr_index =0xfb, + DW_OP_GNU_const_index =0xfc +}; + +// Section identifiers for DWP files +enum DwarfSectionId { + DW_SECT_INFO = 1, + DW_SECT_TYPES = 2, + DW_SECT_ABBREV = 3, + DW_SECT_LINE = 4, + DW_SECT_LOC = 5, + DW_SECT_STR_OFFSETS = 6, + DW_SECT_MACINFO = 7, + DW_SECT_MACRO = 8 }; // Source languages. These are values for DW_AT_language. @@ -517,6 +544,8 @@ enum DwarfLanguage DW_LANG_ObjC_plus_plus =0x0011, DW_LANG_UPC =0x0012, DW_LANG_D =0x0013, + DW_LANG_Rust =0x001c, + DW_LANG_Swift =0x001e, // Implementation-defined language code range. DW_LANG_lo_user = 0x8000, DW_LANG_hi_user = 0xffff, @@ -643,7 +672,7 @@ enum DwarfPointerEncoding // encoding (except DW_EH_PE_aligned), and indicates that the // encoded value represents the address at which the true address // is stored, not the true address itself. - DW_EH_PE_indirect = 0x80 + DW_EH_PE_indirect = 0x80 }; } // namespace dwarf2reader diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.cc b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.cc index 7c1a29d..8774122 100644 --- a/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.cc +++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.cc @@ -44,6 +44,8 @@ #include <string> #include <utility> +#include <sys/stat.h> + #include "common/dwarf/bytereader-inl.h" #include "common/dwarf/bytereader.h" #include "common/dwarf/line_state_machine.h" @@ -51,11 +53,38 @@ namespace dwarf2reader { -CompilationUnit::CompilationUnit(const SectionMap& sections, uint64 offset, +CompilationUnit::CompilationUnit(const string& path, + const SectionMap& sections, uint64 offset, ByteReader* reader, Dwarf2Handler* handler) - : offset_from_section_start_(offset), reader_(reader), - sections_(sections), handler_(handler), abbrevs_(NULL), - string_buffer_(NULL), string_buffer_length_(0) {} + : path_(path), offset_from_section_start_(offset), reader_(reader), + sections_(sections), handler_(handler), abbrevs_(), + string_buffer_(NULL), string_buffer_length_(0), + str_offsets_buffer_(NULL), str_offsets_buffer_length_(0), + addr_buffer_(NULL), addr_buffer_length_(0), + is_split_dwarf_(false), dwo_id_(0), dwo_name_(), + skeleton_dwo_id_(0), ranges_base_(0), addr_base_(0), + have_checked_for_dwp_(false), dwp_path_(), + dwp_byte_reader_(), dwp_reader_() {} + +// Initialize a compilation unit from a .dwo or .dwp file. +// In this case, we need the .debug_addr section from the +// executable file that contains the corresponding skeleton +// compilation unit. We also inherit the Dwarf2Handler from +// the executable file, and call it as if we were still +// processing the original compilation unit. + +void CompilationUnit::SetSplitDwarf(const uint8_t* addr_buffer, + uint64 addr_buffer_length, + uint64 addr_base, + uint64 ranges_base, + uint64 dwo_id) { + is_split_dwarf_ = true; + addr_buffer_ = addr_buffer; + addr_buffer_length_ = addr_buffer_length; + addr_base_ = addr_base; + ranges_base_ = ranges_base; + skeleton_dwo_id_ = dwo_id; +} // Read a DWARF2/3 abbreviation section. // Each abbrev consists of a abbreviation number, a tag, a byte @@ -83,9 +112,9 @@ void CompilationUnit::ReadAbbrevs() { // The only way to check whether we are reading over the end of the // buffer would be to first compute the size of the leb128 data by // reading it, then go back and read it again. - const char* abbrev_start = iter->second.first + + const uint8_t *abbrev_start = iter->second.first + header_.abbrev_offset; - const char* abbrevptr = abbrev_start; + const uint8_t *abbrevptr = abbrev_start; #ifndef NDEBUG const uint64 abbrev_length = iter->second.second - header_.abbrev_offset; #endif @@ -132,8 +161,8 @@ void CompilationUnit::ReadAbbrevs() { } // Skips a single DIE's attributes. -const char* CompilationUnit::SkipDIE(const char* start, - const Abbrev& abbrev) { +const uint8_t *CompilationUnit::SkipDIE(const uint8_t* start, + const Abbrev& abbrev) { for (AttributeList::const_iterator i = abbrev.attributes.begin(); i != abbrev.attributes.end(); i++) { @@ -143,8 +172,8 @@ const char* CompilationUnit::SkipDIE(const char* start, } // Skips a single attribute form's data. -const char* CompilationUnit::SkipAttribute(const char* start, - enum DwarfForm form) { +const uint8_t *CompilationUnit::SkipAttribute(const uint8_t *start, + enum DwarfForm form) { size_t len; switch (form) { @@ -171,9 +200,11 @@ const char* CompilationUnit::SkipAttribute(const char* start, case DW_FORM_ref_sig8: return start + 8; case DW_FORM_string: - return start + strlen(start) + 1; + return start + strlen(reinterpret_cast<const char *>(start)) + 1; case DW_FORM_udata: case DW_FORM_ref_udata: + case DW_FORM_GNU_str_index: + case DW_FORM_GNU_addr_index: reader_->ReadUnsignedLEB128(start, &len); return start + len; @@ -183,14 +214,15 @@ const char* CompilationUnit::SkipAttribute(const char* start, case DW_FORM_addr: return start + reader_->AddressSize(); case DW_FORM_ref_addr: - // DWARF2 and 3 differ on whether ref_addr is address size or + // DWARF2 and 3/4 differ on whether ref_addr is address size or // offset size. - assert(header_.version == 2 || header_.version == 3); + assert(header_.version >= 2); if (header_.version == 2) { return start + reader_->AddressSize(); - } else if (header_.version == 3) { + } else if (header_.version >= 3) { return start + reader_->OffsetSize(); } + break; case DW_FORM_block1: return start + 1 + reader_->ReadOneByte(start); @@ -217,7 +249,7 @@ const char* CompilationUnit::SkipAttribute(const char* start, // the offset in the .debug_abbrev section for our abbrevs, and an // address size. void CompilationUnit::ReadHeader() { - const char* headerptr = buffer_; + const uint8_t *headerptr = buffer_; size_t initial_length_size; assert(headerptr + 4 < buffer_ + buffer_length_); @@ -234,7 +266,9 @@ void CompilationUnit::ReadHeader() { header_.abbrev_offset = reader_->ReadOffset(headerptr); headerptr += reader_->OffsetSize(); - assert(headerptr + 1 < buffer_ + buffer_length_); + // Compare against less than or equal because this may be the last + // section in the file. + assert(headerptr + 1 <= buffer_ + buffer_length_); header_.address_size = reader_->ReadOneByte(headerptr); reader_->SetAddressSize(header_.address_size); headerptr += 1; @@ -295,17 +329,39 @@ uint64 CompilationUnit::Start() { string_buffer_length_ = iter->second.second; } + // Set the string offsets section if we have one. + iter = sections_.find(".debug_str_offsets"); + if (iter != sections_.end()) { + str_offsets_buffer_ = iter->second.first; + str_offsets_buffer_length_ = iter->second.second; + } + + // Set the address section if we have one. + iter = sections_.find(".debug_addr"); + if (iter != sections_.end()) { + addr_buffer_ = iter->second.first; + addr_buffer_length_ = iter->second.second; + } + // Now that we have our abbreviations, start processing DIE's. ProcessDIEs(); + // If this is a skeleton compilation unit generated with split DWARF, + // and the client needs the full debug info, we need to find the full + // compilation unit in a .dwo or .dwp file. + if (!is_split_dwarf_ + && dwo_name_ != NULL + && handler_->NeedSplitDebugInfo()) + ProcessSplitDwarf(); + return ourlength; } // If one really wanted, you could merge SkipAttribute and // ProcessAttribute // This is all boring data manipulation and calling of the handler. -const char* CompilationUnit::ProcessAttribute( - uint64 dieoffset, const char* start, enum DwarfAttribute attr, +const uint8_t *CompilationUnit::ProcessAttribute( + uint64 dieoffset, const uint8_t *start, enum DwarfAttribute attr, enum DwarfForm form) { size_t len; @@ -319,48 +375,46 @@ const char* CompilationUnit::ProcessAttribute( return ProcessAttribute(dieoffset, start, attr, form); case DW_FORM_flag_present: - handler_->ProcessAttributeUnsigned(dieoffset, attr, form, 1); + ProcessAttributeUnsigned(dieoffset, attr, form, 1); return start; case DW_FORM_data1: case DW_FORM_flag: - handler_->ProcessAttributeUnsigned(dieoffset, attr, form, - reader_->ReadOneByte(start)); + ProcessAttributeUnsigned(dieoffset, attr, form, + reader_->ReadOneByte(start)); return start + 1; case DW_FORM_data2: - handler_->ProcessAttributeUnsigned(dieoffset, attr, form, - reader_->ReadTwoBytes(start)); + ProcessAttributeUnsigned(dieoffset, attr, form, + reader_->ReadTwoBytes(start)); return start + 2; case DW_FORM_data4: - handler_->ProcessAttributeUnsigned(dieoffset, attr, form, - reader_->ReadFourBytes(start)); + ProcessAttributeUnsigned(dieoffset, attr, form, + reader_->ReadFourBytes(start)); return start + 4; case DW_FORM_data8: - handler_->ProcessAttributeUnsigned(dieoffset, attr, form, - reader_->ReadEightBytes(start)); + ProcessAttributeUnsigned(dieoffset, attr, form, + reader_->ReadEightBytes(start)); return start + 8; case DW_FORM_string: { - const char* str = start; - handler_->ProcessAttributeString(dieoffset, attr, form, - str); + const char *str = reinterpret_cast<const char *>(start); + ProcessAttributeString(dieoffset, attr, form, str); return start + strlen(str) + 1; } case DW_FORM_udata: - handler_->ProcessAttributeUnsigned(dieoffset, attr, form, - reader_->ReadUnsignedLEB128(start, - &len)); + ProcessAttributeUnsigned(dieoffset, attr, form, + reader_->ReadUnsignedLEB128(start, &len)); return start + len; case DW_FORM_sdata: - handler_->ProcessAttributeSigned(dieoffset, attr, form, - reader_->ReadSignedLEB128(start, &len)); + ProcessAttributeSigned(dieoffset, attr, form, + reader_->ReadSignedLEB128(start, &len)); return start + len; case DW_FORM_addr: - handler_->ProcessAttributeUnsigned(dieoffset, attr, form, - reader_->ReadAddress(start)); + ProcessAttributeUnsigned(dieoffset, attr, form, + reader_->ReadAddress(start)); return start + reader_->AddressSize(); case DW_FORM_sec_offset: - handler_->ProcessAttributeUnsigned(dieoffset, attr, form, - reader_->ReadOffset(start)); + ProcessAttributeUnsigned(dieoffset, attr, form, + reader_->ReadOffset(start)); return start + reader_->OffsetSize(); case DW_FORM_ref1: @@ -390,14 +444,14 @@ const char* CompilationUnit::ProcessAttribute( + offset_from_section_start_); return start + len; case DW_FORM_ref_addr: - // DWARF2 and 3 differ on whether ref_addr is address size or + // DWARF2 and 3/4 differ on whether ref_addr is address size or // offset size. - assert(header_.version == 2 || header_.version == 3); + assert(header_.version >= 2); if (header_.version == 2) { handler_->ProcessAttributeReference(dieoffset, attr, form, reader_->ReadAddress(start)); return start + reader_->AddressSize(); - } else if (header_.version == 3) { + } else if (header_.version >= 3) { handler_->ProcessAttributeReference(dieoffset, attr, form, reader_->ReadOffset(start)); return start + reader_->OffsetSize(); @@ -439,34 +493,66 @@ const char* CompilationUnit::ProcessAttribute( const uint64 offset = reader_->ReadOffset(start); assert(string_buffer_ + offset < string_buffer_ + string_buffer_length_); - const char* str = string_buffer_ + offset; - handler_->ProcessAttributeString(dieoffset, attr, form, - str); + const char *str = reinterpret_cast<const char *>(string_buffer_ + offset); + ProcessAttributeString(dieoffset, attr, form, str); return start + reader_->OffsetSize(); } + + case DW_FORM_GNU_str_index: { + uint64 str_index = reader_->ReadUnsignedLEB128(start, &len); + const uint8_t* offset_ptr = + str_offsets_buffer_ + str_index * reader_->OffsetSize(); + const uint64 offset = reader_->ReadOffset(offset_ptr); + if (offset >= string_buffer_length_) { + return NULL; + } + + const char* str = reinterpret_cast<const char *>(string_buffer_) + offset; + ProcessAttributeString(dieoffset, attr, form, str); + return start + len; + break; + } + case DW_FORM_GNU_addr_index: { + uint64 addr_index = reader_->ReadUnsignedLEB128(start, &len); + const uint8_t* addr_ptr = + addr_buffer_ + addr_base_ + addr_index * reader_->AddressSize(); + ProcessAttributeUnsigned(dieoffset, attr, form, + reader_->ReadAddress(addr_ptr)); + return start + len; + } } fprintf(stderr, "Unhandled form type\n"); return NULL; } -const char* CompilationUnit::ProcessDIE(uint64 dieoffset, - const char* start, - const Abbrev& abbrev) { +const uint8_t *CompilationUnit::ProcessDIE(uint64 dieoffset, + const uint8_t *start, + const Abbrev& abbrev) { for (AttributeList::const_iterator i = abbrev.attributes.begin(); i != abbrev.attributes.end(); i++) { start = ProcessAttribute(dieoffset, start, i->first, i->second); } + + // If this is a compilation unit in a split DWARF object, verify that + // the dwo_id matches. If it does not match, we will ignore this + // compilation unit. + if (abbrev.tag == DW_TAG_compile_unit + && is_split_dwarf_ + && dwo_id_ != skeleton_dwo_id_) { + return NULL; + } + return start; } void CompilationUnit::ProcessDIEs() { - const char* dieptr = after_header_; + const uint8_t *dieptr = after_header_; size_t len; // lengthstart is the place the length field is based on. // It is the point in the header after the initial length field - const char* lengthstart = buffer_; + const uint8_t *lengthstart = buffer_; // In 64 bit dwarf, the initial length is 12 bytes, because of the // 0xffffffff at the start. @@ -500,7 +586,7 @@ void CompilationUnit::ProcessDIEs() { const Abbrev& abbrev = abbrevs_->at(static_cast<size_t>(abbrev_num)); const enum DwarfTag tag = abbrev.tag; - if (!handler_->StartDIE(absolute_offset, tag, abbrev.attributes)) { + if (!handler_->StartDIE(absolute_offset, tag)) { dieptr = SkipDIE(dieptr, abbrev); } else { dieptr = ProcessDIE(absolute_offset, dieptr, abbrev); @@ -514,10 +600,313 @@ void CompilationUnit::ProcessDIEs() { } } -LineInfo::LineInfo(const char* buffer, uint64 buffer_length, +// Check for a valid ELF file and return the Address size. +// Returns 0 if not a valid ELF file. +inline int GetElfWidth(const ElfReader& elf) { + if (elf.IsElf32File()) + return 4; + if (elf.IsElf64File()) + return 8; + return 0; +} + +void CompilationUnit::ProcessSplitDwarf() { + struct stat statbuf; + if (!have_checked_for_dwp_) { + // Look for a .dwp file in the same directory as the executable. + have_checked_for_dwp_ = true; + string dwp_suffix(".dwp"); + dwp_path_ = path_ + dwp_suffix; + if (stat(dwp_path_.c_str(), &statbuf) != 0) { + // Fall back to a split .debug file in the same directory. + string debug_suffix(".debug"); + dwp_path_ = path_; + size_t found = path_.rfind(debug_suffix); + if (found + debug_suffix.length() == path_.length()) + dwp_path_ = dwp_path_.replace(found, debug_suffix.length(), dwp_suffix); + } + if (stat(dwp_path_.c_str(), &statbuf) == 0) { + ElfReader* elf = new ElfReader(dwp_path_); + int width = GetElfWidth(*elf); + if (width != 0) { + dwp_byte_reader_.reset(new ByteReader(reader_->GetEndianness())); + dwp_byte_reader_->SetAddressSize(width); + dwp_reader_.reset(new DwpReader(*dwp_byte_reader_, elf)); + dwp_reader_->Initialize(); + } else { + delete elf; + } + } + } + bool found_in_dwp = false; + if (dwp_reader_) { + // If we have a .dwp file, read the debug sections for the requested CU. + SectionMap sections; + dwp_reader_->ReadDebugSectionsForCU(dwo_id_, §ions); + if (!sections.empty()) { + found_in_dwp = true; + CompilationUnit dwp_comp_unit(dwp_path_, sections, 0, + dwp_byte_reader_.get(), handler_); + dwp_comp_unit.SetSplitDwarf(addr_buffer_, addr_buffer_length_, addr_base_, + ranges_base_, dwo_id_); + dwp_comp_unit.Start(); + } + } + if (!found_in_dwp) { + // If no .dwp file, try to open the .dwo file. + if (stat(dwo_name_, &statbuf) == 0) { + ElfReader elf(dwo_name_); + int width = GetElfWidth(elf); + if (width != 0) { + ByteReader reader(ENDIANNESS_LITTLE); + reader.SetAddressSize(width); + SectionMap sections; + ReadDebugSectionsFromDwo(&elf, §ions); + CompilationUnit dwo_comp_unit(dwo_name_, sections, 0, &reader, + handler_); + dwo_comp_unit.SetSplitDwarf(addr_buffer_, addr_buffer_length_, + addr_base_, ranges_base_, dwo_id_); + dwo_comp_unit.Start(); + } + } + } +} + +void CompilationUnit::ReadDebugSectionsFromDwo(ElfReader* elf_reader, + SectionMap* sections) { + static const char* const section_names[] = { + ".debug_abbrev", + ".debug_info", + ".debug_str_offsets", + ".debug_str" + }; + for (unsigned int i = 0u; + i < sizeof(section_names)/sizeof(*(section_names)); ++i) { + string base_name = section_names[i]; + string dwo_name = base_name + ".dwo"; + size_t section_size; + const char* section_data = elf_reader->GetSectionByName(dwo_name, + §ion_size); + if (section_data != NULL) + sections->insert(std::make_pair( + base_name, std::make_pair( + reinterpret_cast<const uint8_t *>(section_data), + section_size))); + } +} + +DwpReader::DwpReader(const ByteReader& byte_reader, ElfReader* elf_reader) + : elf_reader_(elf_reader), byte_reader_(byte_reader), + cu_index_(NULL), cu_index_size_(0), string_buffer_(NULL), + string_buffer_size_(0), version_(0), ncolumns_(0), nunits_(0), + nslots_(0), phash_(NULL), pindex_(NULL), shndx_pool_(NULL), + offset_table_(NULL), size_table_(NULL), abbrev_data_(NULL), + abbrev_size_(0), info_data_(NULL), info_size_(0), + str_offsets_data_(NULL), str_offsets_size_(0) {} + +DwpReader::~DwpReader() { + if (elf_reader_) delete elf_reader_; +} + +void DwpReader::Initialize() { + cu_index_ = elf_reader_->GetSectionByName(".debug_cu_index", + &cu_index_size_); + if (cu_index_ == NULL) { + return; + } + // The .debug_str.dwo section is shared by all CUs in the file. + string_buffer_ = elf_reader_->GetSectionByName(".debug_str.dwo", + &string_buffer_size_); + + version_ = byte_reader_.ReadFourBytes( + reinterpret_cast<const uint8_t *>(cu_index_)); + + if (version_ == 1) { + nslots_ = byte_reader_.ReadFourBytes( + reinterpret_cast<const uint8_t *>(cu_index_) + + 3 * sizeof(uint32)); + phash_ = cu_index_ + 4 * sizeof(uint32); + pindex_ = phash_ + nslots_ * sizeof(uint64); + shndx_pool_ = pindex_ + nslots_ * sizeof(uint32); + if (shndx_pool_ >= cu_index_ + cu_index_size_) { + version_ = 0; + } + } else if (version_ == 2) { + ncolumns_ = byte_reader_.ReadFourBytes( + reinterpret_cast<const uint8_t *>(cu_index_) + sizeof(uint32)); + nunits_ = byte_reader_.ReadFourBytes( + reinterpret_cast<const uint8_t *>(cu_index_) + 2 * sizeof(uint32)); + nslots_ = byte_reader_.ReadFourBytes( + reinterpret_cast<const uint8_t *>(cu_index_) + 3 * sizeof(uint32)); + phash_ = cu_index_ + 4 * sizeof(uint32); + pindex_ = phash_ + nslots_ * sizeof(uint64); + offset_table_ = pindex_ + nslots_ * sizeof(uint32); + size_table_ = offset_table_ + ncolumns_ * (nunits_ + 1) * sizeof(uint32); + abbrev_data_ = elf_reader_->GetSectionByName(".debug_abbrev.dwo", + &abbrev_size_); + info_data_ = elf_reader_->GetSectionByName(".debug_info.dwo", &info_size_); + str_offsets_data_ = elf_reader_->GetSectionByName(".debug_str_offsets.dwo", + &str_offsets_size_); + if (size_table_ >= cu_index_ + cu_index_size_) { + version_ = 0; + } + } +} + +void DwpReader::ReadDebugSectionsForCU(uint64 dwo_id, + SectionMap* sections) { + if (version_ == 1) { + int slot = LookupCU(dwo_id); + if (slot == -1) { + return; + } + + // The index table points to the section index pool, where we + // can read a list of section indexes for the debug sections + // for the CU whose dwo_id we are looking for. + int index = byte_reader_.ReadFourBytes( + reinterpret_cast<const uint8_t *>(pindex_) + + slot * sizeof(uint32)); + const char* shndx_list = shndx_pool_ + index * sizeof(uint32); + for (;;) { + if (shndx_list >= cu_index_ + cu_index_size_) { + version_ = 0; + return; + } + unsigned int shndx = byte_reader_.ReadFourBytes( + reinterpret_cast<const uint8_t *>(shndx_list)); + shndx_list += sizeof(uint32); + if (shndx == 0) + break; + const char* section_name = elf_reader_->GetSectionName(shndx); + size_t section_size; + const char* section_data; + // We're only interested in these four debug sections. + // The section names in the .dwo file end with ".dwo", but we + // add them to the sections table with their normal names. + if (!strncmp(section_name, ".debug_abbrev", strlen(".debug_abbrev"))) { + section_data = elf_reader_->GetSectionByIndex(shndx, §ion_size); + sections->insert(std::make_pair( + ".debug_abbrev", + std::make_pair(reinterpret_cast<const uint8_t *> (section_data), + section_size))); + } else if (!strncmp(section_name, ".debug_info", strlen(".debug_info"))) { + section_data = elf_reader_->GetSectionByIndex(shndx, §ion_size); + sections->insert(std::make_pair( + ".debug_info", + std::make_pair(reinterpret_cast<const uint8_t *> (section_data), + section_size))); + } else if (!strncmp(section_name, ".debug_str_offsets", + strlen(".debug_str_offsets"))) { + section_data = elf_reader_->GetSectionByIndex(shndx, §ion_size); + sections->insert(std::make_pair( + ".debug_str_offsets", + std::make_pair(reinterpret_cast<const uint8_t *> (section_data), + section_size))); + } + } + sections->insert(std::make_pair( + ".debug_str", + std::make_pair(reinterpret_cast<const uint8_t *> (string_buffer_), + string_buffer_size_))); + } else if (version_ == 2) { + uint32 index = LookupCUv2(dwo_id); + if (index == 0) { + return; + } + + // The index points to a row in each of the section offsets table + // and the section size table, where we can read the offsets and sizes + // of the contributions to each debug section from the CU whose dwo_id + // we are looking for. Row 0 of the section offsets table has the + // section ids for each column of the table. The size table begins + // with row 1. + const char* id_row = offset_table_; + const char* offset_row = offset_table_ + + index * ncolumns_ * sizeof(uint32); + const char* size_row = + size_table_ + (index - 1) * ncolumns_ * sizeof(uint32); + if (size_row + ncolumns_ * sizeof(uint32) > cu_index_ + cu_index_size_) { + version_ = 0; + return; + } + for (unsigned int col = 0u; col < ncolumns_; ++col) { + uint32 section_id = + byte_reader_.ReadFourBytes(reinterpret_cast<const uint8_t *>(id_row) + + col * sizeof(uint32)); + uint32 offset = byte_reader_.ReadFourBytes( + reinterpret_cast<const uint8_t *>(offset_row) + + col * sizeof(uint32)); + uint32 size = byte_reader_.ReadFourBytes( + reinterpret_cast<const uint8_t *>(size_row) + col * sizeof(uint32)); + if (section_id == DW_SECT_ABBREV) { + sections->insert(std::make_pair( + ".debug_abbrev", + std::make_pair(reinterpret_cast<const uint8_t *> (abbrev_data_) + + offset, size))); + } else if (section_id == DW_SECT_INFO) { + sections->insert(std::make_pair( + ".debug_info", + std::make_pair(reinterpret_cast<const uint8_t *> (info_data_) + + offset, size))); + } else if (section_id == DW_SECT_STR_OFFSETS) { + sections->insert(std::make_pair( + ".debug_str_offsets", + std::make_pair(reinterpret_cast<const uint8_t *> (str_offsets_data_) + + offset, size))); + } + } + sections->insert(std::make_pair( + ".debug_str", + std::make_pair(reinterpret_cast<const uint8_t *> (string_buffer_), + string_buffer_size_))); + } +} + +int DwpReader::LookupCU(uint64 dwo_id) { + uint32 slot = static_cast<uint32>(dwo_id) & (nslots_ - 1); + uint64 probe = byte_reader_.ReadEightBytes( + reinterpret_cast<const uint8_t *>(phash_) + slot * sizeof(uint64)); + if (probe != 0 && probe != dwo_id) { + uint32 secondary_hash = + (static_cast<uint32>(dwo_id >> 32) & (nslots_ - 1)) | 1; + do { + slot = (slot + secondary_hash) & (nslots_ - 1); + probe = byte_reader_.ReadEightBytes( + reinterpret_cast<const uint8_t *>(phash_) + slot * sizeof(uint64)); + } while (probe != 0 && probe != dwo_id); + } + if (probe == 0) + return -1; + return slot; +} + +uint32 DwpReader::LookupCUv2(uint64 dwo_id) { + uint32 slot = static_cast<uint32>(dwo_id) & (nslots_ - 1); + uint64 probe = byte_reader_.ReadEightBytes( + reinterpret_cast<const uint8_t *>(phash_) + slot * sizeof(uint64)); + uint32 index = byte_reader_.ReadFourBytes( + reinterpret_cast<const uint8_t *>(pindex_) + slot * sizeof(uint32)); + if (index != 0 && probe != dwo_id) { + uint32 secondary_hash = + (static_cast<uint32>(dwo_id >> 32) & (nslots_ - 1)) | 1; + do { + slot = (slot + secondary_hash) & (nslots_ - 1); + probe = byte_reader_.ReadEightBytes( + reinterpret_cast<const uint8_t *>(phash_) + slot * sizeof(uint64)); + index = byte_reader_.ReadFourBytes( + reinterpret_cast<const uint8_t *>(pindex_) + slot * sizeof(uint32)); + } while (index != 0 && probe != dwo_id); + } + return index; +} + +LineInfo::LineInfo(const uint8_t *buffer, uint64 buffer_length, ByteReader* reader, LineInfoHandler* handler): - handler_(handler), reader_(reader), buffer_(buffer), - buffer_length_(buffer_length) { + handler_(handler), reader_(reader), buffer_(buffer) { +#ifndef NDEBUG + buffer_length_ = buffer_length; +#endif header_.std_opcode_lengths = NULL; } @@ -530,7 +919,7 @@ uint64 LineInfo::Start() { // The header for a debug_line section is mildly complicated, because // the line info is very tightly encoded. void LineInfo::ReadHeader() { - const char* lineptr = buffer_; + const uint8_t *lineptr = buffer_; size_t initial_length_size; const uint64 initial_length @@ -553,6 +942,13 @@ void LineInfo::ReadHeader() { header_.min_insn_length = reader_->ReadOneByte(lineptr); lineptr += 1; + if (header_.version >= 4) { + __attribute__((unused)) uint8 max_ops_per_insn = + reader_->ReadOneByte(lineptr); + ++lineptr; + assert(max_ops_per_insn == 1); + } + header_.default_is_stmt = reader_->ReadOneByte(lineptr); lineptr += 1; @@ -577,7 +973,7 @@ void LineInfo::ReadHeader() { if (*lineptr) { uint32 dirindex = 1; while (*lineptr) { - const char* dirname = lineptr; + const char *dirname = reinterpret_cast<const char *>(lineptr); handler_->DefineDir(dirname, dirindex); lineptr += strlen(dirname) + 1; dirindex++; @@ -590,7 +986,7 @@ void LineInfo::ReadHeader() { uint32 fileindex = 1; size_t len; while (*lineptr) { - const char* filename = lineptr; + const char *filename = reinterpret_cast<const char *>(lineptr); lineptr += strlen(filename) + 1; uint64 dirindex = reader_->ReadUnsignedLEB128(lineptr, &len); @@ -615,7 +1011,7 @@ void LineInfo::ReadHeader() { bool LineInfo::ProcessOneOpcode(ByteReader* reader, LineInfoHandler* handler, const struct LineInfoHeader &header, - const char* start, + const uint8_t *start, struct LineStateMachine* lsm, size_t* len, uintptr pc, @@ -756,7 +1152,7 @@ bool LineInfo::ProcessOneOpcode(ByteReader* reader, } break; case DW_LNE_define_file: { - const char* filename = start; + const char *filename = reinterpret_cast<const char *>(start); templen = strlen(filename) + 1; start += templen; @@ -803,7 +1199,7 @@ void LineInfo::ReadLines() { // lengthstart is the place the length field is based on. // It is the point in the header after the initial length field - const char* lengthstart = buffer_; + const uint8_t *lengthstart = buffer_; // In 64 bit dwarf, the initial length is 12 bytes, because of the // 0xffffffff at the start. @@ -812,7 +1208,7 @@ void LineInfo::ReadLines() { else lengthstart += 4; - const char* lineptr = after_header_; + const uint8_t *lineptr = after_header_; lsm.Reset(header_.default_is_stmt); // The LineInfoHandler interface expects each line's length along @@ -1311,7 +1707,7 @@ class CallFrameInfo::State { const Entry *entry_; // The next instruction to process. - const char *cursor_; + const uint8_t *cursor_; // The current set of rules. RuleMap rules_; @@ -1409,7 +1805,8 @@ bool CallFrameInfo::State::ParseOperands(const char *format, if (len > bytes_left || expression_length > bytes_left - len) return ReportIncomplete(); cursor_ += len; - operands->expression = string(cursor_, expression_length); + operands->expression = string(reinterpret_cast<const char *>(cursor_), + expression_length); cursor_ += expression_length; break; } @@ -1512,16 +1909,19 @@ bool CallFrameInfo::State::DoInstruction() { // Change the base register used to compute the CFA. case DW_CFA_def_cfa_register: { + if (!ParseOperands("r", &ops)) return false; Rule *cfa_rule = rules_.CFARule(); if (!cfa_rule) { - reporter_->NoCFARule(entry_->offset, entry_->kind, CursorOffset()); + if (!DoDefCFA(ops.register_number, ops.offset)) { + reporter_->NoCFARule(entry_->offset, entry_->kind, CursorOffset()); + return false; + } + } else { + cfa_rule->SetBaseRegister(ops.register_number); + if (!cfa_rule->Handle(handler_, address_, + Handler::kCFARegister)) return false; } - if (!ParseOperands("r", &ops)) return false; - cfa_rule->SetBaseRegister(ops.register_number); - if (!cfa_rule->Handle(handler_, address_, - Handler::kCFARegister)) - return false; break; } @@ -1759,8 +2159,8 @@ bool CallFrameInfo::State::DoRestore(unsigned reg) { return DoRule(reg, rule); } -bool CallFrameInfo::ReadEntryPrologue(const char *cursor, Entry *entry) { - const char *buffer_end = buffer_ + buffer_length_; +bool CallFrameInfo::ReadEntryPrologue(const uint8_t *cursor, Entry *entry) { + const uint8_t *buffer_end = buffer_ + buffer_length_; // Initialize enough of ENTRY for use in error reporting. entry->offset = cursor - buffer_; @@ -1838,7 +2238,7 @@ bool CallFrameInfo::ReadEntryPrologue(const char *cursor, Entry *entry) { } bool CallFrameInfo::ReadCIEFields(CIE *cie) { - const char *cursor = cie->fields; + const uint8_t *cursor = cie->fields; size_t len; assert(cie->kind == kCIE); @@ -1860,22 +2260,23 @@ bool CallFrameInfo::ReadCIEFields(CIE *cie) { cursor++; // If we don't recognize the version, we can't parse any more fields of the - // CIE. For DWARF CFI, we handle versions 1 through 3 (there was never a - // version 2 of CFI data). For .eh_frame, we handle versions 1 and 3 as well; + // CIE. For DWARF CFI, we handle versions 1 through 4 (there was never a + // version 2 of CFI data). For .eh_frame, we handle versions 1 and 4 as well; // the difference between those versions seems to be the same as for // .debug_frame. - if (cie->version < 1 || cie->version > 3) { + if (cie->version < 1 || cie->version > 4) { reporter_->UnrecognizedVersion(cie->offset, cie->version); return false; } - const char *augmentation_start = cursor; - const void *augmentation_end = - memchr(augmentation_start, '\0', cie->end - augmentation_start); + const uint8_t *augmentation_start = cursor; + const uint8_t *augmentation_end = + reinterpret_cast<const uint8_t *>(memchr(augmentation_start, '\0', + cie->end - augmentation_start)); if (! augmentation_end) return ReportIncomplete(cie); - cursor = static_cast<const char *>(augmentation_end); - cie->augmentation = string(augmentation_start, - cursor - augmentation_start); + cursor = augmentation_end; + cie->augmentation = string(reinterpret_cast<const char *>(augmentation_start), + cursor - augmentation_start); // Skip the terminating '\0'. cursor++; @@ -1893,16 +2294,36 @@ bool CallFrameInfo::ReadCIEFields(CIE *cie) { } } + if (cie->version >= 4) { + uint8_t address_size = *cursor++; + if (address_size != 8) { + // TODO(scottmg): Only supporting x64 for now. + reporter_->UnexpectedAddressSize(cie->offset, address_size); + return false; + } + + uint8_t segment_size = *cursor++; + if (segment_size != 0) { + // TODO(scottmg): Only supporting x64 for now. + // I would have perhaps expected 4 here, but LLVM emits a 0, near + // http://llvm.org/docs/doxygen/html/MCDwarf_8cpp_source.html#l00606. As + // we are not using the value, only succeed for now if it's the expected + // 0. + reporter_->UnexpectedSegmentSize(cie->offset, segment_size); + return false; + } + } + // Parse the code alignment factor. cie->code_alignment_factor = reader_->ReadUnsignedLEB128(cursor, &len); if (size_t(cie->end - cursor) < len) return ReportIncomplete(cie); cursor += len; - + // Parse the data alignment factor. cie->data_alignment_factor = reader_->ReadSignedLEB128(cursor, &len); if (size_t(cie->end - cursor) < len) return ReportIncomplete(cie); cursor += len; - + // Parse the return address register. This is a ubyte in version 1, and // a ULEB128 in version 3. if (cie->version == 1) { @@ -1921,9 +2342,9 @@ bool CallFrameInfo::ReadCIEFields(CIE *cie) { if (size_t(cie->end - cursor) < len + data_size) return ReportIncomplete(cie); cursor += len; - const char *data = cursor; + const uint8_t *data = cursor; cursor += data_size; - const char *data_end = cursor; + const uint8_t *data_end = cursor; cie->has_z_lsda = false; cie->has_z_personality = false; @@ -2013,9 +2434,9 @@ bool CallFrameInfo::ReadCIEFields(CIE *cie) { return true; } - + bool CallFrameInfo::ReadFDEFields(FDE *fde) { - const char *cursor = fde->fields; + const uint8_t *cursor = fde->fields; size_t size; fde->address = reader_->ReadEncodedPointer(cursor, fde->cie->pointer_encoding, @@ -2081,10 +2502,10 @@ bool CallFrameInfo::ReadFDEFields(FDE *fde) { } bool CallFrameInfo::Start() { - const char *buffer_end = buffer_ + buffer_length_; - const char *cursor; + const uint8_t *buffer_end = buffer_ + buffer_length_; + const uint8_t *cursor; bool all_ok = true; - const char *entry_end; + const uint8_t *entry_end; bool ok; // Traverse all the entries in buffer_, skipping CIEs and offering @@ -2254,6 +2675,22 @@ void CallFrameInfo::Reporter::BadCIEId(uint64 offset, uint64 cie_offset) { filename_.c_str(), offset, section_.c_str(), cie_offset); } +void CallFrameInfo::Reporter::UnexpectedAddressSize(uint64 offset, + uint8_t address_size) { + fprintf(stderr, + "%s: CFI frame description entry at offset 0x%llx in '%s':" + " CIE specifies unexpected address size: %d\n", + filename_.c_str(), offset, section_.c_str(), address_size); +} + +void CallFrameInfo::Reporter::UnexpectedSegmentSize(uint64 offset, + uint8_t segment_size) { + fprintf(stderr, + "%s: CFI frame description entry at offset 0x%llx in '%s':" + " CIE specifies unexpected segment size: %d\n", + filename_.c_str(), offset, section_.c_str(), segment_size); +} + void CallFrameInfo::Reporter::UnrecognizedVersion(uint64 offset, int version) { fprintf(stderr, "%s: CFI frame description entry at offset 0x%llx in '%s':" diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.h b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.h index ecf4eb2..5d2d7f6 100644 --- a/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.h +++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.h @@ -40,25 +40,30 @@ #ifndef COMMON_DWARF_DWARF2READER_H__ #define COMMON_DWARF_DWARF2READER_H__ +#include <stdint.h> + #include <list> #include <map> #include <string> #include <utility> #include <vector> +#include <memory> #include "common/dwarf/bytereader.h" #include "common/dwarf/dwarf2enums.h" #include "common/dwarf/types.h" #include "common/using_std_string.h" +#include "common/dwarf/elf_reader.h" namespace dwarf2reader { struct LineStateMachine; class Dwarf2Handler; class LineInfoHandler; +class DwpReader; // This maps from a string naming a section to a pair containing a // the data for the section, and the size of the section. -typedef std::map<string, std::pair<const char*, uint64> > SectionMap; +typedef std::map<string, std::pair<const uint8_t *, uint64> > SectionMap; typedef std::list<std::pair<enum DwarfAttribute, enum DwarfForm> > AttributeList; typedef AttributeList::iterator AttributeIterator; @@ -85,7 +90,7 @@ class LineInfo { // to the beginning and length of the line information to read. // Reader is a ByteReader class that has the endianness set // properly. - LineInfo(const char* buffer_, uint64 buffer_length, + LineInfo(const uint8_t *buffer_, uint64 buffer_length, ByteReader* reader, LineInfoHandler* handler); virtual ~LineInfo() { @@ -111,7 +116,7 @@ class LineInfo { static bool ProcessOneOpcode(ByteReader* reader, LineInfoHandler* handler, const struct LineInfoHeader &header, - const char* start, + const uint8_t *start, struct LineStateMachine* lsm, size_t* len, uintptr pc, @@ -139,9 +144,11 @@ class LineInfo { // buffer is the buffer for our line info, starting at exactly where // the line info to read is. after_header is the place right after // the end of the line information header. - const char* buffer_; + const uint8_t *buffer_; +#ifndef NDEBUG uint64 buffer_length_; - const char* after_header_; +#endif + const uint8_t *after_header_; }; // This class is the main interface between the line info reader and @@ -180,6 +187,106 @@ class LineInfoHandler { uint32 file_num, uint32 line_num, uint32 column_num) { } }; +// This class is the main interface between the reader and the +// client. The virtual functions inside this get called for +// interesting events that happen during DWARF2 reading. +// The default implementation skips everything. +class Dwarf2Handler { + public: + Dwarf2Handler() { } + + virtual ~Dwarf2Handler() { } + + // Start to process a compilation unit at OFFSET from the beginning of the + // .debug_info section. Return false if you would like to skip this + // compilation unit. + virtual bool StartCompilationUnit(uint64 offset, uint8 address_size, + uint8 offset_size, uint64 cu_length, + uint8 dwarf_version) { return false; } + + // When processing a skeleton compilation unit, resulting from a split + // DWARF compilation, once the skeleton debug info has been read, + // the reader will call this function to ask the client if it needs + // the full debug info from the .dwo or .dwp file. Return true if + // you need it, or false to skip processing the split debug info. + virtual bool NeedSplitDebugInfo() { return true; } + + // Start to process a split compilation unit at OFFSET from the beginning of + // the debug_info section in the .dwp/.dwo file. Return false if you would + // like to skip this compilation unit. + virtual bool StartSplitCompilationUnit(uint64 offset, + uint64 cu_length) { return false; } + + // Start to process a DIE at OFFSET from the beginning of the .debug_info + // section. Return false if you would like to skip this DIE. + virtual bool StartDIE(uint64 offset, enum DwarfTag tag) { return false; } + + // Called when we have an attribute with unsigned data to give to our + // handler. The attribute is for the DIE at OFFSET from the beginning of the + // .debug_info section. Its name is ATTR, its form is FORM, and its value is + // DATA. + virtual void ProcessAttributeUnsigned(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data) { } + + // Called when we have an attribute with signed data to give to our handler. + // The attribute is for the DIE at OFFSET from the beginning of the + // .debug_info section. Its name is ATTR, its form is FORM, and its value is + // DATA. + virtual void ProcessAttributeSigned(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + int64 data) { } + + // Called when we have an attribute whose value is a reference to + // another DIE. The attribute belongs to the DIE at OFFSET from the + // beginning of the .debug_info section. Its name is ATTR, its form + // is FORM, and the offset of the DIE being referred to from the + // beginning of the .debug_info section is DATA. + virtual void ProcessAttributeReference(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data) { } + + // Called when we have an attribute with a buffer of data to give to our + // handler. The attribute is for the DIE at OFFSET from the beginning of the + // .debug_info section. Its name is ATTR, its form is FORM, DATA points to + // the buffer's contents, and its length in bytes is LENGTH. The buffer is + // owned by the caller, not the callee, and may not persist for very long. + // If you want the data to be available later, it needs to be copied. + virtual void ProcessAttributeBuffer(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + const uint8_t *data, + uint64 len) { } + + // Called when we have an attribute with string data to give to our handler. + // The attribute is for the DIE at OFFSET from the beginning of the + // .debug_info section. Its name is ATTR, its form is FORM, and its value is + // DATA. + virtual void ProcessAttributeString(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + const string& data) { } + + // Called when we have an attribute whose value is the 64-bit signature + // of a type unit in the .debug_types section. OFFSET is the offset of + // the DIE whose attribute we're reporting. ATTR and FORM are the + // attribute's name and form. SIGNATURE is the type unit's signature. + virtual void ProcessAttributeSignature(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 signature) { } + + // Called when finished processing the DIE at OFFSET. + // Because DWARF2/3 specifies a tree of DIEs, you may get starts + // before ends of the previous DIE, as we process children before + // ending the parent. + virtual void EndDIE(uint64 offset) { } + +}; + // The base of DWARF2/3 debug info is a DIE (Debugging Information // Entry. // DWARF groups DIE's into a tree and calls the root of this tree a @@ -221,12 +328,21 @@ class CompilationUnit { // Initialize a compilation unit. This requires a map of sections, // the offset of this compilation unit in the .debug_info section, a // ByteReader, and a Dwarf2Handler class to call callbacks in. - CompilationUnit(const SectionMap& sections, uint64 offset, + CompilationUnit(const string& path, const SectionMap& sections, uint64 offset, ByteReader* reader, Dwarf2Handler* handler); virtual ~CompilationUnit() { if (abbrevs_) delete abbrevs_; } + // Initialize a compilation unit from a .dwo or .dwp file. + // In this case, we need the .debug_addr section from the + // executable file that contains the corresponding skeleton + // compilation unit. We also inherit the Dwarf2Handler from + // the executable file, and call it as if we were still + // processing the original compilation unit. + void SetSplitDwarf(const uint8_t* addr_buffer, uint64 addr_buffer_length, + uint64 addr_base, uint64 ranges_base, uint64 dwo_id); + // Begin reading a Dwarf2 compilation unit, and calling the // callbacks in the Dwarf2Handler @@ -266,29 +382,104 @@ class CompilationUnit { // Processes a single DIE for this compilation unit and return a new // pointer just past the end of it - const char* ProcessDIE(uint64 dieoffset, - const char* start, - const Abbrev& abbrev); + const uint8_t *ProcessDIE(uint64 dieoffset, + const uint8_t *start, + const Abbrev& abbrev); // Processes a single attribute and return a new pointer just past the // end of it - const char* ProcessAttribute(uint64 dieoffset, - const char* start, - enum DwarfAttribute attr, - enum DwarfForm form); + const uint8_t *ProcessAttribute(uint64 dieoffset, + const uint8_t *start, + enum DwarfAttribute attr, + enum DwarfForm form); + + // Called when we have an attribute with unsigned data to give to + // our handler. The attribute is for the DIE at OFFSET from the + // beginning of compilation unit, has a name of ATTR, a form of + // FORM, and the actual data of the attribute is in DATA. + // If we see a DW_AT_GNU_dwo_id attribute, save the value so that + // we can find the debug info in a .dwo or .dwp file. + void ProcessAttributeUnsigned(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data) { + if (attr == DW_AT_GNU_dwo_id) { + dwo_id_ = data; + } + else if (attr == DW_AT_GNU_addr_base) { + addr_base_ = data; + } + else if (attr == DW_AT_GNU_ranges_base) { + ranges_base_ = data; + } + // TODO(yunlian): When we add DW_AT_ranges_base from DWARF-5, + // that base will apply to DW_AT_ranges attributes in the + // skeleton CU as well as in the .dwo/.dwp files. + else if (attr == DW_AT_ranges && is_split_dwarf_) { + data += ranges_base_; + } + handler_->ProcessAttributeUnsigned(offset, attr, form, data); + } + + // Called when we have an attribute with signed data to give to + // our handler. The attribute is for the DIE at OFFSET from the + // beginning of compilation unit, has a name of ATTR, a form of + // FORM, and the actual data of the attribute is in DATA. + void ProcessAttributeSigned(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + int64 data) { + handler_->ProcessAttributeSigned(offset, attr, form, data); + } + + // Called when we have an attribute with a buffer of data to give to + // our handler. The attribute is for the DIE at OFFSET from the + // beginning of compilation unit, has a name of ATTR, a form of + // FORM, and the actual data of the attribute is in DATA, and the + // length of the buffer is LENGTH. + void ProcessAttributeBuffer(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + const uint8_t* data, + uint64 len) { + handler_->ProcessAttributeBuffer(offset, attr, form, data, len); + } + + // Called when we have an attribute with string data to give to + // our handler. The attribute is for the DIE at OFFSET from the + // beginning of compilation unit, has a name of ATTR, a form of + // FORM, and the actual data of the attribute is in DATA. + // If we see a DW_AT_GNU_dwo_name attribute, save the value so + // that we can find the debug info in a .dwo or .dwp file. + void ProcessAttributeString(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + const char* data) { + if (attr == DW_AT_GNU_dwo_name) + dwo_name_ = data; + handler_->ProcessAttributeString(offset, attr, form, data); + } // Processes all DIEs for this compilation unit void ProcessDIEs(); // Skips the die with attributes specified in ABBREV starting at // START, and return the new place to position the stream to. - const char* SkipDIE(const char* start, - const Abbrev& abbrev); + const uint8_t *SkipDIE(const uint8_t *start, const Abbrev& abbrev); // Skips the attribute starting at START, with FORM, and return the // new place to position the stream to. - const char* SkipAttribute(const char* start, - enum DwarfForm form); + const uint8_t *SkipAttribute(const uint8_t *start, enum DwarfForm form); + + // Process the actual debug information in a split DWARF file. + void ProcessSplitDwarf(); + + // Read the debug sections from a .dwo file. + void ReadDebugSectionsFromDwo(ElfReader* elf_reader, + SectionMap* sections); + + // Path of the file containing the debug information. + const string path_; // Offset from section start is the offset of this compilation unit // from the beginning of the .debug_info section. @@ -297,9 +488,9 @@ class CompilationUnit { // buffer is the buffer for our CU, starting at .debug_info + offset // passed in from constructor. // after_header points to right after the compilation unit header. - const char* buffer_; + const uint8_t *buffer_; uint64 buffer_length_; - const char* after_header_; + const uint8_t *after_header_; // The associated ByteReader that handles endianness issues for us ByteReader* reader_; @@ -318,97 +509,143 @@ class CompilationUnit { // String section buffer and length, if we have a string section. // This is here to avoid doing a section lookup for strings in // ProcessAttribute, which is in the hot path for DWARF2 reading. - const char* string_buffer_; + const uint8_t *string_buffer_; uint64 string_buffer_length_; -}; -// This class is the main interface between the reader and the -// client. The virtual functions inside this get called for -// interesting events that happen during DWARF2 reading. -// The default implementation skips everything. + // String offsets section buffer and length, if we have a string offsets + // section (.debug_str_offsets or .debug_str_offsets.dwo). + const uint8_t* str_offsets_buffer_; + uint64 str_offsets_buffer_length_; -class Dwarf2Handler { + // Address section buffer and length, if we have an address section + // (.debug_addr). + const uint8_t* addr_buffer_; + uint64 addr_buffer_length_; + + // Flag indicating whether this compilation unit is part of a .dwo + // or .dwp file. If true, we are reading this unit because a + // skeleton compilation unit in an executable file had a + // DW_AT_GNU_dwo_name or DW_AT_GNU_dwo_id attribute. + // In a .dwo file, we expect the string offsets section to + // have a ".dwo" suffix, and we will use the ".debug_addr" section + // associated with the skeleton compilation unit. + bool is_split_dwarf_; + + // The value of the DW_AT_GNU_dwo_id attribute, if any. + uint64 dwo_id_; + + // The value of the DW_AT_GNU_dwo_name attribute, if any. + const char* dwo_name_; + + // If this is a split DWARF CU, the value of the DW_AT_GNU_dwo_id attribute + // from the skeleton CU. + uint64 skeleton_dwo_id_; + + // The value of the DW_AT_GNU_ranges_base attribute, if any. + uint64 ranges_base_; + + // The value of the DW_AT_GNU_addr_base attribute, if any. + uint64 addr_base_; + + // True if we have already looked for a .dwp file. + bool have_checked_for_dwp_; + + // Path to the .dwp file. + string dwp_path_; + + // ByteReader for the DWP file. + std::unique_ptr<ByteReader> dwp_byte_reader_; + + // DWP reader. + std::unique_ptr<DwpReader> dwp_reader_; +}; + +// A Reader for a .dwp file. Supports the fetching of DWARF debug +// info for a given dwo_id. +// +// There are two versions of .dwp files. In both versions, the +// .dwp file is an ELF file containing only debug sections. +// In Version 1, the file contains many copies of each debug +// section, one for each .dwo file that is packaged in the .dwp +// file, and the .debug_cu_index section maps from the dwo_id +// to a set of section indexes. In Version 2, the file contains +// one of each debug section, and the .debug_cu_index section +// maps from the dwo_id to a set of offsets and lengths that +// identify each .dwo file's contribution to the larger sections. + +class DwpReader { public: - Dwarf2Handler() { } + DwpReader(const ByteReader& byte_reader, ElfReader* elf_reader); - virtual ~Dwarf2Handler() { } + ~DwpReader(); - // Start to process a compilation unit at OFFSET from the beginning of the - // .debug_info section. Return false if you would like to skip this - // compilation unit. - virtual bool StartCompilationUnit(uint64 offset, uint8 address_size, - uint8 offset_size, uint64 cu_length, - uint8 dwarf_version) { return false; } + // Read the CU index and initialize data members. + void Initialize(); - // Start to process a DIE at OFFSET from the beginning of the .debug_info - // section. Return false if you would like to skip this DIE. - virtual bool StartDIE(uint64 offset, enum DwarfTag tag, - const AttributeList& attrs) { return false; } + // Read the debug sections for the given dwo_id. + void ReadDebugSectionsForCU(uint64 dwo_id, SectionMap* sections); - // Called when we have an attribute with unsigned data to give to our - // handler. The attribute is for the DIE at OFFSET from the beginning of the - // .debug_info section. Its name is ATTR, its form is FORM, and its value is - // DATA. - virtual void ProcessAttributeUnsigned(uint64 offset, - enum DwarfAttribute attr, - enum DwarfForm form, - uint64 data) { } + private: + // Search a v1 hash table for "dwo_id". Returns the slot index + // where the dwo_id was found, or -1 if it was not found. + int LookupCU(uint64 dwo_id); - // Called when we have an attribute with signed data to give to our handler. - // The attribute is for the DIE at OFFSET from the beginning of the - // .debug_info section. Its name is ATTR, its form is FORM, and its value is - // DATA. - virtual void ProcessAttributeSigned(uint64 offset, - enum DwarfAttribute attr, - enum DwarfForm form, - int64 data) { } + // Search a v2 hash table for "dwo_id". Returns the row index + // in the offsets and sizes tables, or 0 if it was not found. + uint32 LookupCUv2(uint64 dwo_id); - // Called when we have an attribute whose value is a reference to - // another DIE. The attribute belongs to the DIE at OFFSET from the - // beginning of the .debug_info section. Its name is ATTR, its form - // is FORM, and the offset of the DIE being referred to from the - // beginning of the .debug_info section is DATA. - virtual void ProcessAttributeReference(uint64 offset, - enum DwarfAttribute attr, - enum DwarfForm form, - uint64 data) { } + // The ELF reader for the .dwp file. + ElfReader* elf_reader_; - // Called when we have an attribute with a buffer of data to give to our - // handler. The attribute is for the DIE at OFFSET from the beginning of the - // .debug_info section. Its name is ATTR, its form is FORM, DATA points to - // the buffer's contents, and its length in bytes is LENGTH. The buffer is - // owned by the caller, not the callee, and may not persist for very long. - // If you want the data to be available later, it needs to be copied. - virtual void ProcessAttributeBuffer(uint64 offset, - enum DwarfAttribute attr, - enum DwarfForm form, - const char* data, - uint64 len) { } + // The ByteReader for the .dwp file. + const ByteReader& byte_reader_; - // Called when we have an attribute with string data to give to our handler. - // The attribute is for the DIE at OFFSET from the beginning of the - // .debug_info section. Its name is ATTR, its form is FORM, and its value is - // DATA. - virtual void ProcessAttributeString(uint64 offset, - enum DwarfAttribute attr, - enum DwarfForm form, - const string& data) { } + // Pointer to the .debug_cu_index section. + const char* cu_index_; - // Called when we have an attribute whose value is the 64-bit signature - // of a type unit in the .debug_types section. OFFSET is the offset of - // the DIE whose attribute we're reporting. ATTR and FORM are the - // attribute's name and form. SIGNATURE is the type unit's signature. - virtual void ProcessAttributeSignature(uint64 offset, - enum DwarfAttribute attr, - enum DwarfForm form, - uint64 signature) { } + // Size of the .debug_cu_index section. + size_t cu_index_size_; - // Called when finished processing the DIE at OFFSET. - // Because DWARF2/3 specifies a tree of DIEs, you may get starts - // before ends of the previous DIE, as we process children before - // ending the parent. - virtual void EndDIE(uint64 offset) { } + // Pointer to the .debug_str.dwo section. + const char* string_buffer_; + // Size of the .debug_str.dwo section. + size_t string_buffer_size_; + + // Version of the .dwp file. We support versions 1 and 2 currently. + int version_; + + // Number of columns in the section tables (version 2). + unsigned int ncolumns_; + + // Number of units in the section tables (version 2). + unsigned int nunits_; + + // Number of slots in the hash table. + unsigned int nslots_; + + // Pointer to the beginning of the hash table. + const char* phash_; + + // Pointer to the beginning of the index table. + const char* pindex_; + + // Pointer to the beginning of the section index pool (version 1). + const char* shndx_pool_; + + // Pointer to the beginning of the section offset table (version 2). + const char* offset_table_; + + // Pointer to the beginning of the section size table (version 2). + const char* size_table_; + + // Contents of the sections of interest (version 2). + const char* abbrev_data_; + size_t abbrev_size_; + const char* info_data_; + size_t info_size_; + const char* str_offsets_data_; + size_t str_offsets_size_; }; // This class is a reader for DWARF's Call Frame Information. CFI @@ -638,7 +875,7 @@ class CallFrameInfo { // The mechanics of C++ exception handling, personality routines, // and language-specific data areas are described here, rather nicely: // http://www.codesourcery.com/public/cxx-abi/abi-eh.html - CallFrameInfo(const char *buffer, size_t buffer_length, + CallFrameInfo(const uint8_t *buffer, size_t buffer_length, ByteReader *reader, Handler *handler, Reporter *reporter, bool eh_frame = false) : buffer_(buffer), buffer_length_(buffer_length), @@ -666,7 +903,7 @@ class CallFrameInfo { size_t offset; // The start of this entry in the buffer. - const char *start; + const uint8_t *start; // Which kind of entry this is. // @@ -677,16 +914,16 @@ class CallFrameInfo { // The end of this entry's common prologue (initial length and id), and // the start of this entry's kind-specific fields. - const char *fields; + const uint8_t *fields; // The start of this entry's instructions. - const char *instructions; + const uint8_t *instructions; // The address past the entry's last byte in the buffer. (Note that // since offset points to the entry's initial length field, and the // length field is the number of bytes after that field, this is not // simply buffer_ + offset + length.) - const char *end; + const uint8_t *end; // For both DWARF CFI and .eh_frame sections, this is the CIE id in a // CIE, and the offset of the associated CIE in an FDE. @@ -763,7 +1000,7 @@ class CallFrameInfo { // true. On failure, report the problem, and return false. Even if we // return false, set ENTRY->end to the first byte after the entry if we // were able to figure that out, or NULL if we weren't. - bool ReadEntryPrologue(const char *cursor, Entry *entry); + bool ReadEntryPrologue(const uint8_t *cursor, Entry *entry); // Parse the fields of a CIE after the entry prologue, including any 'z' // augmentation data. Assume that the 'Entry' fields of CIE are @@ -791,7 +1028,7 @@ class CallFrameInfo { } // The contents of the DWARF .debug_info section we're parsing. - const char *buffer_; + const uint8_t *buffer_; size_t buffer_length_; // For reading multi-byte values with the appropriate endianness. @@ -990,6 +1227,14 @@ class CallFrameInfo::Reporter { // there is not a CIE. virtual void BadCIEId(uint64 offset, uint64 cie_offset); + // The FDE at OFFSET refers to a CIE with an address size we don't know how + // to handle. + virtual void UnexpectedAddressSize(uint64 offset, uint8_t address_size); + + // The FDE at OFFSET refers to a CIE with an segment descriptor size we + // don't know how to handle. + virtual void UnexpectedSegmentSize(uint64 offset, uint8_t segment_size); + // The FDE at OFFSET refers to a CIE with version number VERSION, // which we don't recognize. We cannot parse DWARF CFI if it uses // a version number we don't recognize. diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2reader_cfi_unittest.cc b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader_cfi_unittest.cc new file mode 100644 index 0000000..38cc7ea --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader_cfi_unittest.cc @@ -0,0 +1,2555 @@ +// Copyright (c) 2010, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// dwarf2reader_cfi_unittest.cc: Unit tests for dwarf2reader::CallFrameInfo + +#include <stdint.h> +#include <stdlib.h> + +#include <string> +#include <vector> + +// The '.eh_frame' format, used by the Linux C++ ABI for exception +// handling, is poorly specified. To help test our support for .eh_frame, +// if you #define WRITE_ELF while compiling this file, and add the +// 'include' directory from the binutils, gcc, or gdb source tree to the +// #include path, then each test that calls the +// PERHAPS_WRITE_DEBUG_FRAME_FILE or PERHAPS_WRITE_EH_FRAME_FILE will write +// an ELF file containing a .debug_frame or .eh_frame section; you can then +// use tools like readelf to examine the test data, and check the tools' +// interpretation against the test's intentions. Each ELF file is named +// "cfitest-TEST", where TEST identifies the particular test. +#ifdef WRITE_ELF +#include <errno.h> +#include <stdio.h> +#include <string.h> +extern "C" { +// To compile with WRITE_ELF, you should add the 'include' directory +// of the binutils, gcc, or gdb source tree to your #include path; +// that directory contains this header. +#include "elf/common.h" +} +#endif + +#include "breakpad_googletest_includes.h" +#include "common/dwarf/bytereader-inl.h" +#include "common/dwarf/cfi_assembler.h" +#include "common/dwarf/dwarf2reader.h" +#include "common/using_std_string.h" +#include "google_breakpad/common/breakpad_types.h" + +using google_breakpad::CFISection; +using google_breakpad::test_assembler::Label; +using google_breakpad::test_assembler::kBigEndian; +using google_breakpad::test_assembler::kLittleEndian; +using google_breakpad::test_assembler::Section; + +using dwarf2reader::DwarfPointerEncoding; +using dwarf2reader::ENDIANNESS_BIG; +using dwarf2reader::ENDIANNESS_LITTLE; +using dwarf2reader::ByteReader; +using dwarf2reader::CallFrameInfo; + +using std::vector; +using testing::InSequence; +using testing::Return; +using testing::Sequence; +using testing::Test; +using testing::_; + +#ifdef WRITE_ELF +void WriteELFFrameSection(const char *filename, const char *section_name, + const CFISection §ion); +#define PERHAPS_WRITE_DEBUG_FRAME_FILE(name, section) \ + WriteELFFrameSection("cfitest-" name, ".debug_frame", section); +#define PERHAPS_WRITE_EH_FRAME_FILE(name, section) \ + WriteELFFrameSection("cfitest-" name, ".eh_frame", section); +#else +#define PERHAPS_WRITE_DEBUG_FRAME_FILE(name, section) +#define PERHAPS_WRITE_EH_FRAME_FILE(name, section) +#endif + +class MockCallFrameInfoHandler: public CallFrameInfo::Handler { + public: + MOCK_METHOD6(Entry, bool(size_t offset, uint64 address, uint64 length, + uint8 version, const string &augmentation, + unsigned return_address)); + MOCK_METHOD2(UndefinedRule, bool(uint64 address, int reg)); + MOCK_METHOD2(SameValueRule, bool(uint64 address, int reg)); + MOCK_METHOD4(OffsetRule, bool(uint64 address, int reg, int base_register, + long offset)); + MOCK_METHOD4(ValOffsetRule, bool(uint64 address, int reg, int base_register, + long offset)); + MOCK_METHOD3(RegisterRule, bool(uint64 address, int reg, int base_register)); + MOCK_METHOD3(ExpressionRule, bool(uint64 address, int reg, + const string &expression)); + MOCK_METHOD3(ValExpressionRule, bool(uint64 address, int reg, + const string &expression)); + MOCK_METHOD0(End, bool()); + MOCK_METHOD2(PersonalityRoutine, bool(uint64 address, bool indirect)); + MOCK_METHOD2(LanguageSpecificDataArea, bool(uint64 address, bool indirect)); + MOCK_METHOD0(SignalHandler, bool()); +}; + +class MockCallFrameErrorReporter: public CallFrameInfo::Reporter { + public: + MockCallFrameErrorReporter() : Reporter("mock filename", "mock section") { } + MOCK_METHOD2(Incomplete, void(uint64, CallFrameInfo::EntryKind)); + MOCK_METHOD1(EarlyEHTerminator, void(uint64)); + MOCK_METHOD2(CIEPointerOutOfRange, void(uint64, uint64)); + MOCK_METHOD2(BadCIEId, void(uint64, uint64)); + MOCK_METHOD2(UnexpectedAddressSize, void(uint64, uint8_t)); + MOCK_METHOD2(UnexpectedSegmentSize, void(uint64, uint8_t)); + MOCK_METHOD2(UnrecognizedVersion, void(uint64, int version)); + MOCK_METHOD2(UnrecognizedAugmentation, void(uint64, const string &)); + MOCK_METHOD2(InvalidPointerEncoding, void(uint64, uint8)); + MOCK_METHOD2(UnusablePointerEncoding, void(uint64, uint8)); + MOCK_METHOD2(RestoreInCIE, void(uint64, uint64)); + MOCK_METHOD3(BadInstruction, void(uint64, CallFrameInfo::EntryKind, uint64)); + MOCK_METHOD3(NoCFARule, void(uint64, CallFrameInfo::EntryKind, uint64)); + MOCK_METHOD3(EmptyStateStack, void(uint64, CallFrameInfo::EntryKind, uint64)); +}; + +struct CFIFixture { + + enum { kCFARegister = CallFrameInfo::Handler::kCFARegister }; + + CFIFixture() { + // Default expectations for the data handler. + // + // - Leave Entry and End without expectations, as it's probably a + // good idea to set those explicitly in each test. + // + // - Expect the *Rule functions to not be called, + // so that each test can simply list the calls they expect. + // + // I gather I could use StrictMock for this, but the manual seems + // to suggest using that only as a last resort, and this isn't so + // bad. + EXPECT_CALL(handler, UndefinedRule(_, _)).Times(0); + EXPECT_CALL(handler, SameValueRule(_, _)).Times(0); + EXPECT_CALL(handler, OffsetRule(_, _, _, _)).Times(0); + EXPECT_CALL(handler, ValOffsetRule(_, _, _, _)).Times(0); + EXPECT_CALL(handler, RegisterRule(_, _, _)).Times(0); + EXPECT_CALL(handler, ExpressionRule(_, _, _)).Times(0); + EXPECT_CALL(handler, ValExpressionRule(_, _, _)).Times(0); + EXPECT_CALL(handler, PersonalityRoutine(_, _)).Times(0); + EXPECT_CALL(handler, LanguageSpecificDataArea(_, _)).Times(0); + EXPECT_CALL(handler, SignalHandler()).Times(0); + + // Default expectations for the error/warning reporer. + EXPECT_CALL(reporter, Incomplete(_, _)).Times(0); + EXPECT_CALL(reporter, EarlyEHTerminator(_)).Times(0); + EXPECT_CALL(reporter, CIEPointerOutOfRange(_, _)).Times(0); + EXPECT_CALL(reporter, BadCIEId(_, _)).Times(0); + EXPECT_CALL(reporter, UnrecognizedVersion(_, _)).Times(0); + EXPECT_CALL(reporter, UnrecognizedAugmentation(_, _)).Times(0); + EXPECT_CALL(reporter, InvalidPointerEncoding(_, _)).Times(0); + EXPECT_CALL(reporter, UnusablePointerEncoding(_, _)).Times(0); + EXPECT_CALL(reporter, RestoreInCIE(_, _)).Times(0); + EXPECT_CALL(reporter, BadInstruction(_, _, _)).Times(0); + EXPECT_CALL(reporter, NoCFARule(_, _, _)).Times(0); + EXPECT_CALL(reporter, EmptyStateStack(_, _, _)).Times(0); + } + + MockCallFrameInfoHandler handler; + MockCallFrameErrorReporter reporter; +}; + +class CFI: public CFIFixture, public Test { }; + +TEST_F(CFI, EmptyRegion) { + EXPECT_CALL(handler, Entry(_, _, _, _, _, _)).Times(0); + EXPECT_CALL(handler, End()).Times(0); + static const uint8_t data[] = { 42 }; + + ByteReader byte_reader(ENDIANNESS_BIG); + CallFrameInfo parser(data, 0, &byte_reader, &handler, &reporter); + EXPECT_TRUE(parser.Start()); +} + +TEST_F(CFI, IncompleteLength32) { + CFISection section(kBigEndian, 8); + section + // Not even long enough for an initial length. + .D16(0xa0f) + // Padding to keep valgrind happy. We subtract these off when we + // construct the parser. + .D16(0); + + EXPECT_CALL(handler, Entry(_, _, _, _, _, _)).Times(0); + EXPECT_CALL(handler, End()).Times(0); + + EXPECT_CALL(reporter, Incomplete(_, CallFrameInfo::kUnknown)) + .WillOnce(Return()); + + string contents; + ASSERT_TRUE(section.GetContents(&contents)); + + ByteReader byte_reader(ENDIANNESS_BIG); + byte_reader.SetAddressSize(8); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size() - 2, + &byte_reader, &handler, &reporter); + EXPECT_FALSE(parser.Start()); +} + +TEST_F(CFI, IncompleteLength64) { + CFISection section(kLittleEndian, 4); + section + // An incomplete 64-bit DWARF initial length. + .D32(0xffffffff).D32(0x71fbaec2) + // Padding to keep valgrind happy. We subtract these off when we + // construct the parser. + .D32(0); + + EXPECT_CALL(handler, Entry(_, _, _, _, _, _)).Times(0); + EXPECT_CALL(handler, End()).Times(0); + + EXPECT_CALL(reporter, Incomplete(_, CallFrameInfo::kUnknown)) + .WillOnce(Return()); + + string contents; + ASSERT_TRUE(section.GetContents(&contents)); + + ByteReader byte_reader(ENDIANNESS_LITTLE); + byte_reader.SetAddressSize(4); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size() - 4, + &byte_reader, &handler, &reporter); + EXPECT_FALSE(parser.Start()); +} + +TEST_F(CFI, IncompleteId32) { + CFISection section(kBigEndian, 8); + section + .D32(3) // Initial length, not long enough for id + .D8(0xd7).D8(0xe5).D8(0xf1) // incomplete id + .CIEHeader(8727, 3983, 8889, 3, "") + .FinishEntry(); + + EXPECT_CALL(handler, Entry(_, _, _, _, _, _)).Times(0); + EXPECT_CALL(handler, End()).Times(0); + + EXPECT_CALL(reporter, Incomplete(_, CallFrameInfo::kUnknown)) + .WillOnce(Return()); + + string contents; + ASSERT_TRUE(section.GetContents(&contents)); + + ByteReader byte_reader(ENDIANNESS_BIG); + byte_reader.SetAddressSize(8); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_FALSE(parser.Start()); +} + +TEST_F(CFI, BadId32) { + CFISection section(kBigEndian, 8); + section + .D32(0x100) // Initial length + .D32(0xe802fade) // bogus ID + .Append(0x100 - 4, 0x42); // make the length true + section + .CIEHeader(1672, 9872, 8529, 3, "") + .FinishEntry(); + + EXPECT_CALL(handler, Entry(_, _, _, _, _, _)).Times(0); + EXPECT_CALL(handler, End()).Times(0); + + EXPECT_CALL(reporter, CIEPointerOutOfRange(_, 0xe802fade)) + .WillOnce(Return()); + + string contents; + ASSERT_TRUE(section.GetContents(&contents)); + + ByteReader byte_reader(ENDIANNESS_BIG); + byte_reader.SetAddressSize(8); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_FALSE(parser.Start()); +} + +// A lone CIE shouldn't cause any handler calls. +TEST_F(CFI, SingleCIE) { + CFISection section(kLittleEndian, 4); + section.CIEHeader(0xffe799a8, 0x3398dcdd, 0x6e9683de, 3, ""); + section.Append(10, dwarf2reader::DW_CFA_nop); + section.FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("SingleCIE", section); + + EXPECT_CALL(handler, Entry(_, _, _, _, _, _)).Times(0); + EXPECT_CALL(handler, End()).Times(0); + + string contents; + EXPECT_TRUE(section.GetContents(&contents)); + ByteReader byte_reader(ENDIANNESS_LITTLE); + byte_reader.SetAddressSize(4); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_TRUE(parser.Start()); +} + +// One FDE, one CIE. +TEST_F(CFI, OneFDE) { + CFISection section(kBigEndian, 4); + Label cie; + section + .Mark(&cie) + .CIEHeader(0x4be22f75, 0x2492236e, 0x6b6efb87, 3, "") + .FinishEntry() + .FDEHeader(cie, 0x7714740d, 0x3d5a10cd) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("OneFDE", section); + + { + InSequence s; + EXPECT_CALL(handler, + Entry(_, 0x7714740d, 0x3d5a10cd, 3, "", 0x6b6efb87)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + } + + string contents; + EXPECT_TRUE(section.GetContents(&contents)); + ByteReader byte_reader(ENDIANNESS_BIG); + byte_reader.SetAddressSize(4); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_TRUE(parser.Start()); +} + +// Two FDEs share a CIE. +TEST_F(CFI, TwoFDEsOneCIE) { + CFISection section(kBigEndian, 4); + Label cie; + section + // First FDE. readelf complains about this one because it makes + // a forward reference to its CIE. + .FDEHeader(cie, 0xa42744df, 0xa3b42121) + .FinishEntry() + // CIE. + .Mark(&cie) + .CIEHeader(0x04f7dc7b, 0x3d00c05f, 0xbd43cb59, 3, "") + .FinishEntry() + // Second FDE. + .FDEHeader(cie, 0x6057d391, 0x700f608d) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("TwoFDEsOneCIE", section); + + { + InSequence s; + EXPECT_CALL(handler, + Entry(_, 0xa42744df, 0xa3b42121, 3, "", 0xbd43cb59)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + } + { + InSequence s; + EXPECT_CALL(handler, + Entry(_, 0x6057d391, 0x700f608d, 3, "", 0xbd43cb59)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + } + + string contents; + EXPECT_TRUE(section.GetContents(&contents)); + ByteReader byte_reader(ENDIANNESS_BIG); + byte_reader.SetAddressSize(4); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_TRUE(parser.Start()); +} + +// Two FDEs, two CIEs. +TEST_F(CFI, TwoFDEsTwoCIEs) { + CFISection section(kLittleEndian, 8); + Label cie1, cie2; + section + // First CIE. + .Mark(&cie1) + .CIEHeader(0x694d5d45, 0x4233221b, 0xbf45e65a, 3, "") + .FinishEntry() + // First FDE which cites second CIE. readelf complains about + // this one because it makes a forward reference to its CIE. + .FDEHeader(cie2, 0x778b27dfe5871f05ULL, 0x324ace3448070926ULL) + .FinishEntry() + // Second FDE, which cites first CIE. + .FDEHeader(cie1, 0xf6054ca18b10bf5fULL, 0x45fdb970d8bca342ULL) + .FinishEntry() + // Second CIE. + .Mark(&cie2) + .CIEHeader(0xfba3fad7, 0x6287e1fd, 0x61d2c581, 2, "") + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("TwoFDEsTwoCIEs", section); + + { + InSequence s; + EXPECT_CALL(handler, + Entry(_, 0x778b27dfe5871f05ULL, 0x324ace3448070926ULL, 2, + "", 0x61d2c581)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + } + { + InSequence s; + EXPECT_CALL(handler, + Entry(_, 0xf6054ca18b10bf5fULL, 0x45fdb970d8bca342ULL, 3, + "", 0xbf45e65a)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + } + + string contents; + EXPECT_TRUE(section.GetContents(&contents)); + ByteReader byte_reader(ENDIANNESS_LITTLE); + byte_reader.SetAddressSize(8); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_TRUE(parser.Start()); +} + +// An FDE whose CIE specifies a version we don't recognize. +TEST_F(CFI, BadVersion) { + CFISection section(kBigEndian, 4); + Label cie1, cie2; + section + .Mark(&cie1) + .CIEHeader(0xca878cf0, 0x7698ec04, 0x7b616f54, 0x52, "") + .FinishEntry() + // We should skip this entry, as its CIE specifies a version we + // don't recognize. + .FDEHeader(cie1, 0x08852292, 0x2204004a) + .FinishEntry() + // Despite the above, we should visit this entry. + .Mark(&cie2) + .CIEHeader(0x7c3ae7c9, 0xb9b9a512, 0x96cb3264, 3, "") + .FinishEntry() + .FDEHeader(cie2, 0x2094735a, 0x6e875501) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("BadVersion", section); + + EXPECT_CALL(reporter, UnrecognizedVersion(_, 0x52)) + .WillOnce(Return()); + + { + InSequence s; + // We should see no mention of the first FDE, but we should get + // a call to Entry for the second. + EXPECT_CALL(handler, Entry(_, 0x2094735a, 0x6e875501, 3, "", + 0x96cb3264)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()) + .WillOnce(Return(true)); + } + + string contents; + EXPECT_TRUE(section.GetContents(&contents)); + ByteReader byte_reader(ENDIANNESS_BIG); + byte_reader.SetAddressSize(4); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_FALSE(parser.Start()); +} + +// An FDE whose CIE specifies an augmentation we don't recognize. +TEST_F(CFI, BadAugmentation) { + CFISection section(kBigEndian, 4); + Label cie1, cie2; + section + .Mark(&cie1) + .CIEHeader(0x4be22f75, 0x2492236e, 0x6b6efb87, 3, "spaniels!") + .FinishEntry() + // We should skip this entry, as its CIE specifies an + // augmentation we don't recognize. + .FDEHeader(cie1, 0x7714740d, 0x3d5a10cd) + .FinishEntry() + // Despite the above, we should visit this entry. + .Mark(&cie2) + .CIEHeader(0xf8bc4399, 0x8cf09931, 0xf2f519b2, 3, "") + .FinishEntry() + .FDEHeader(cie2, 0x7bf0fda0, 0xcbcd28d8) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("BadAugmentation", section); + + EXPECT_CALL(reporter, UnrecognizedAugmentation(_, "spaniels!")) + .WillOnce(Return()); + + { + InSequence s; + // We should see no mention of the first FDE, but we should get + // a call to Entry for the second. + EXPECT_CALL(handler, Entry(_, 0x7bf0fda0, 0xcbcd28d8, 3, "", + 0xf2f519b2)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()) + .WillOnce(Return(true)); + } + + string contents; + EXPECT_TRUE(section.GetContents(&contents)); + ByteReader byte_reader(ENDIANNESS_BIG); + byte_reader.SetAddressSize(4); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_FALSE(parser.Start()); +} + +// The return address column field is a byte in CFI version 1 +// (DWARF2), but a ULEB128 value in version 3 (DWARF3). +TEST_F(CFI, CIEVersion1ReturnColumn) { + CFISection section(kBigEndian, 4); + Label cie; + section + // CIE, using the version 1 format: return column is a ubyte. + .Mark(&cie) + // Use a value for the return column that is parsed differently + // as a ubyte and as a ULEB128. + .CIEHeader(0xbcdea24f, 0x5be28286, 0x9f, 1, "") + .FinishEntry() + // FDE, citing that CIE. + .FDEHeader(cie, 0xb8d347b5, 0x825e55dc) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("CIEVersion1ReturnColumn", section); + + { + InSequence s; + EXPECT_CALL(handler, Entry(_, 0xb8d347b5, 0x825e55dc, 1, "", 0x9f)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + } + + string contents; + EXPECT_TRUE(section.GetContents(&contents)); + ByteReader byte_reader(ENDIANNESS_BIG); + byte_reader.SetAddressSize(4); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_TRUE(parser.Start()); +} + +// The return address column field is a byte in CFI version 1 +// (DWARF2), but a ULEB128 value in version 3 (DWARF3). +TEST_F(CFI, CIEVersion3ReturnColumn) { + CFISection section(kBigEndian, 4); + Label cie; + section + // CIE, using the version 3 format: return column is a ULEB128. + .Mark(&cie) + // Use a value for the return column that is parsed differently + // as a ubyte and as a ULEB128. + .CIEHeader(0x0ab4758d, 0xc010fdf7, 0x89, 3, "") + .FinishEntry() + // FDE, citing that CIE. + .FDEHeader(cie, 0x86763f2b, 0x2a66dc23) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("CIEVersion3ReturnColumn", section); + + { + InSequence s; + EXPECT_CALL(handler, Entry(_, 0x86763f2b, 0x2a66dc23, 3, "", 0x89)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + } + + string contents; + EXPECT_TRUE(section.GetContents(&contents)); + ByteReader byte_reader(ENDIANNESS_BIG); + byte_reader.SetAddressSize(4); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_TRUE(parser.Start()); +} + +TEST_F(CFI, CIEVersion4AdditionalFields) { + CFISection section(kBigEndian, 4); + Label cie; + section + .Mark(&cie) + // CIE version 4 with expected address and segment size. + .CIEHeader(0x0ab4758d, 0xc010fdf7, 0x89, 4, "", true, 8, 0) + .FinishEntry() + // FDE, citing that CIE. + .FDEHeader(cie, 0x86763f2b, 0x2a66dc23) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("CIEVersion3ReturnColumn", section); + + { + InSequence s; + EXPECT_CALL(handler, Entry(_, 0x86763f2b, 0x2a66dc23, 4, "", 0x89)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + } + + string contents; + EXPECT_TRUE(section.GetContents(&contents)); + ByteReader byte_reader(ENDIANNESS_BIG); + byte_reader.SetAddressSize(4); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_TRUE(parser.Start()); +} + +TEST_F(CFI, CIEVersion4AdditionalFieldsUnexpectedAddressSize) { + CFISection section(kBigEndian, 4); + Label cie; + + section + .Mark(&cie) + // Unexpected address size. + .CIEHeader(0x4be22f75, 0x2492236e, 0x6b6efb87, 4, "", true, 3, 0) + .FinishEntry() + // FDE, citing that CIE. + .FDEHeader(cie, 0x86763f2b, 0x2a66dc23) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("AdditionalFieldsUnexpectedAddress", section); + + EXPECT_CALL(reporter, UnexpectedAddressSize(_, 3)) + .WillOnce(Return()); + + string contents; + EXPECT_TRUE(section.GetContents(&contents)); + ByteReader byte_reader(ENDIANNESS_BIG); + byte_reader.SetAddressSize(8); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_FALSE(parser.Start()); +} + +TEST_F(CFI, CIEVersion4AdditionalFieldsUnexpectedSegmentSize) { + CFISection section(kBigEndian, 4); + Label cie; + + section + .Mark(&cie) + .CIEHeader(0xf8bc4399, 0x8cf09931, 0xf2f519b2, 4, "", true, 8, 7) + .FinishEntry() + .FDEHeader(cie, 0x7bf0fda0, 0xcbcd28d8) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("AdditionalFieldsUnexpectedSegment", section); + + EXPECT_CALL(reporter, UnexpectedSegmentSize(_, 7)) + .WillOnce(Return()); + + string contents; + EXPECT_TRUE(section.GetContents(&contents)); + ByteReader byte_reader(ENDIANNESS_BIG); + byte_reader.SetAddressSize(8); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + EXPECT_FALSE(parser.Start()); +} + +struct CFIInsnFixture: public CFIFixture { + CFIInsnFixture() : CFIFixture() { + data_factor = 0xb6f; + return_register = 0x9be1ed9f; + version = 3; + cfa_base_register = 0x383a3aa; + cfa_offset = 0xf748; + } + + // Prepare SECTION to receive FDE instructions. + // + // - Append a stock CIE header that establishes the fixture's + // code_factor, data_factor, return_register, version, and + // augmentation values. + // - Have the CIE set up a CFA rule using cfa_base_register and + // cfa_offset. + // - Append a stock FDE header, referring to the above CIE, for the + // fde_size bytes at fde_start. Choose fde_start and fde_size + // appropriately for the section's address size. + // - Set appropriate expectations on handler in sequence s for the + // frame description entry and the CIE's CFA rule. + // + // On return, SECTION is ready to have FDE instructions appended to + // it, and its FinishEntry member called. + void StockCIEAndFDE(CFISection *section) { + // Choose appropriate constants for our address size. + if (section->AddressSize() == 4) { + fde_start = 0xc628ecfbU; + fde_size = 0x5dee04a2; + code_factor = 0x60b; + } else { + assert(section->AddressSize() == 8); + fde_start = 0x0005c57ce7806bd3ULL; + fde_size = 0x2699521b5e333100ULL; + code_factor = 0x01008e32855274a8ULL; + } + + // Create the CIE. + (*section) + .Mark(&cie_label) + .CIEHeader(code_factor, data_factor, return_register, version, + "") + .D8(dwarf2reader::DW_CFA_def_cfa) + .ULEB128(cfa_base_register) + .ULEB128(cfa_offset) + .FinishEntry(); + + // Create the FDE. + section->FDEHeader(cie_label, fde_start, fde_size); + + // Expect an Entry call for the FDE and a ValOffsetRule call for the + // CIE's CFA rule. + EXPECT_CALL(handler, Entry(_, fde_start, fde_size, version, "", + return_register)) + .InSequence(s) + .WillOnce(Return(true)); + EXPECT_CALL(handler, ValOffsetRule(fde_start, kCFARegister, + cfa_base_register, cfa_offset)) + .InSequence(s) + .WillOnce(Return(true)); + } + + // Run the contents of SECTION through a CallFrameInfo parser, + // expecting parser.Start to return SUCCEEDS + void ParseSection(CFISection *section, bool succeeds = true) { + string contents; + EXPECT_TRUE(section->GetContents(&contents)); + dwarf2reader::Endianness endianness; + if (section->endianness() == kBigEndian) + endianness = ENDIANNESS_BIG; + else { + assert(section->endianness() == kLittleEndian); + endianness = ENDIANNESS_LITTLE; + } + ByteReader byte_reader(endianness); + byte_reader.SetAddressSize(section->AddressSize()); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter); + if (succeeds) + EXPECT_TRUE(parser.Start()); + else + EXPECT_FALSE(parser.Start()); + } + + Label cie_label; + Sequence s; + uint64 code_factor; + int data_factor; + unsigned return_register; + unsigned version; + unsigned cfa_base_register; + int cfa_offset; + uint64 fde_start, fde_size; +}; + +class CFIInsn: public CFIInsnFixture, public Test { }; + +TEST_F(CFIInsn, DW_CFA_set_loc) { + CFISection section(kBigEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_set_loc).D32(0xb1ee3e7a) + // Use DW_CFA_def_cfa to force a handler call that we can use to + // check the effect of the DW_CFA_set_loc. + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x4defb431).ULEB128(0x6d17b0ee) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_set_loc", section); + + EXPECT_CALL(handler, + ValOffsetRule(0xb1ee3e7a, kCFARegister, 0x4defb431, 0x6d17b0ee)) + .InSequence(s) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_advance_loc) { + CFISection section(kBigEndian, 8); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_advance_loc | 0x2a) + // Use DW_CFA_def_cfa to force a handler call that we can use to + // check the effect of the DW_CFA_advance_loc. + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x5bbb3715).ULEB128(0x0186c7bf) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_advance_loc", section); + + EXPECT_CALL(handler, + ValOffsetRule(fde_start + 0x2a * code_factor, + kCFARegister, 0x5bbb3715, 0x0186c7bf)) + .InSequence(s) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_advance_loc1) { + CFISection section(kLittleEndian, 8); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_advance_loc1).D8(0xd8) + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x69d5696a).ULEB128(0x1eb7fc93) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_advance_loc1", section); + + EXPECT_CALL(handler, + ValOffsetRule((fde_start + 0xd8 * code_factor), + kCFARegister, 0x69d5696a, 0x1eb7fc93)) + .InSequence(s) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_advance_loc2) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_advance_loc2).D16(0x3adb) + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x3a368bed).ULEB128(0x3194ee37) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_advance_loc2", section); + + EXPECT_CALL(handler, + ValOffsetRule((fde_start + 0x3adb * code_factor), + kCFARegister, 0x3a368bed, 0x3194ee37)) + .InSequence(s) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_advance_loc4) { + CFISection section(kBigEndian, 8); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_advance_loc4).D32(0x15813c88) + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x135270c5).ULEB128(0x24bad7cb) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_advance_loc4", section); + + EXPECT_CALL(handler, + ValOffsetRule((fde_start + 0x15813c88ULL * code_factor), + kCFARegister, 0x135270c5, 0x24bad7cb)) + .InSequence(s) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_MIPS_advance_loc8) { + code_factor = 0x2d; + CFISection section(kBigEndian, 8); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_MIPS_advance_loc8).D64(0x3c4f3945b92c14ULL) + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0xe17ed602).ULEB128(0x3d162e7f) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_advance_loc8", section); + + EXPECT_CALL(handler, + ValOffsetRule((fde_start + 0x3c4f3945b92c14ULL * code_factor), + kCFARegister, 0xe17ed602, 0x3d162e7f)) + .InSequence(s) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_def_cfa) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x4e363a85).ULEB128(0x815f9aa7) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("DW_CFA_def_cfa", section); + + EXPECT_CALL(handler, + ValOffsetRule(fde_start, kCFARegister, 0x4e363a85, 0x815f9aa7)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_def_cfa_sf) { + CFISection section(kBigEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_def_cfa_sf).ULEB128(0x8ccb32b7).LEB128(0x9ea) + .D8(dwarf2reader::DW_CFA_def_cfa_sf).ULEB128(0x9b40f5da).LEB128(-0x40a2) + .FinishEntry(); + + EXPECT_CALL(handler, + ValOffsetRule(fde_start, kCFARegister, 0x8ccb32b7, + 0x9ea * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, + ValOffsetRule(fde_start, kCFARegister, 0x9b40f5da, + -0x40a2 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_def_cfa_register) { + CFISection section(kLittleEndian, 8); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_def_cfa_register).ULEB128(0x3e7e9363) + .FinishEntry(); + + EXPECT_CALL(handler, + ValOffsetRule(fde_start, kCFARegister, 0x3e7e9363, cfa_offset)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +// DW_CFA_def_cfa_register should have no effect when applied to a +// non-base/offset rule. +TEST_F(CFIInsn, DW_CFA_def_cfa_registerBadRule) { + CFISection section(kBigEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_def_cfa_expression).Block("needle in a haystack") + .D8(dwarf2reader::DW_CFA_def_cfa_register).ULEB128(0xf1b49e49) + .FinishEntry(); + + EXPECT_CALL(handler, + ValExpressionRule(fde_start, kCFARegister, + "needle in a haystack")) + .WillRepeatedly(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_def_cfa_offset) { + CFISection section(kBigEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_def_cfa_offset).ULEB128(0x1e8e3b9b) + .FinishEntry(); + + EXPECT_CALL(handler, + ValOffsetRule(fde_start, kCFARegister, cfa_base_register, + 0x1e8e3b9b)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_def_cfa_offset_sf) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_def_cfa_offset_sf).LEB128(0x970) + .D8(dwarf2reader::DW_CFA_def_cfa_offset_sf).LEB128(-0x2cd) + .FinishEntry(); + + EXPECT_CALL(handler, + ValOffsetRule(fde_start, kCFARegister, cfa_base_register, + 0x970 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, + ValOffsetRule(fde_start, kCFARegister, cfa_base_register, + -0x2cd * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +// DW_CFA_def_cfa_offset should have no effect when applied to a +// non-base/offset rule. +TEST_F(CFIInsn, DW_CFA_def_cfa_offsetBadRule) { + CFISection section(kBigEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_def_cfa_expression).Block("six ways to Sunday") + .D8(dwarf2reader::DW_CFA_def_cfa_offset).ULEB128(0x1e8e3b9b) + .FinishEntry(); + + EXPECT_CALL(handler, + ValExpressionRule(fde_start, kCFARegister, "six ways to Sunday")) + .WillRepeatedly(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_def_cfa_expression) { + CFISection section(kLittleEndian, 8); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_def_cfa_expression).Block("eating crow") + .FinishEntry(); + + EXPECT_CALL(handler, ValExpressionRule(fde_start, kCFARegister, + "eating crow")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_undefined) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0x300ce45d) + .FinishEntry(); + + EXPECT_CALL(handler, UndefinedRule(fde_start, 0x300ce45d)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_same_value) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_same_value).ULEB128(0x3865a760) + .FinishEntry(); + + EXPECT_CALL(handler, SameValueRule(fde_start, 0x3865a760)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_offset) { + CFISection section(kBigEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_offset | 0x2c).ULEB128(0x9f6) + .FinishEntry(); + + EXPECT_CALL(handler, + OffsetRule(fde_start, 0x2c, kCFARegister, 0x9f6 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_offset_extended) { + CFISection section(kBigEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_offset_extended).ULEB128(0x402b).ULEB128(0xb48) + .FinishEntry(); + + EXPECT_CALL(handler, + OffsetRule(fde_start, 0x402b, kCFARegister, 0xb48 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_offset_extended_sf) { + CFISection section(kBigEndian, 8); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_offset_extended_sf) + .ULEB128(0x997c23ee).LEB128(0x2d00) + .D8(dwarf2reader::DW_CFA_offset_extended_sf) + .ULEB128(0x9519eb82).LEB128(-0xa77) + .FinishEntry(); + + EXPECT_CALL(handler, + OffsetRule(fde_start, 0x997c23ee, + kCFARegister, 0x2d00 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, + OffsetRule(fde_start, 0x9519eb82, + kCFARegister, -0xa77 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_val_offset) { + CFISection section(kBigEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_val_offset).ULEB128(0x623562fe).ULEB128(0x673) + .FinishEntry(); + + EXPECT_CALL(handler, + ValOffsetRule(fde_start, 0x623562fe, + kCFARegister, 0x673 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_val_offset_sf) { + CFISection section(kBigEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_val_offset_sf).ULEB128(0x6f4f).LEB128(0xaab) + .D8(dwarf2reader::DW_CFA_val_offset_sf).ULEB128(0x2483).LEB128(-0x8a2) + .FinishEntry(); + + EXPECT_CALL(handler, + ValOffsetRule(fde_start, 0x6f4f, + kCFARegister, 0xaab * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, + ValOffsetRule(fde_start, 0x2483, + kCFARegister, -0x8a2 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_register) { + CFISection section(kLittleEndian, 8); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_register).ULEB128(0x278d18f9).ULEB128(0x1a684414) + .FinishEntry(); + + EXPECT_CALL(handler, RegisterRule(fde_start, 0x278d18f9, 0x1a684414)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_expression) { + CFISection section(kBigEndian, 8); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_expression).ULEB128(0xa1619fb2) + .Block("plus ça change, plus c'est la même chose") + .FinishEntry(); + + EXPECT_CALL(handler, + ExpressionRule(fde_start, 0xa1619fb2, + "plus ça change, plus c'est la même chose")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_val_expression) { + CFISection section(kBigEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_val_expression).ULEB128(0xc5e4a9e3) + .Block("he who has the gold makes the rules") + .FinishEntry(); + + EXPECT_CALL(handler, + ValExpressionRule(fde_start, 0xc5e4a9e3, + "he who has the gold makes the rules")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_restore) { + CFISection section(kLittleEndian, 8); + code_factor = 0x01bd188a9b1fa083ULL; + data_factor = -0x1ac8; + return_register = 0x8c35b049; + version = 2; + fde_start = 0x2d70fe998298bbb1ULL; + fde_size = 0x46ccc2e63cf0b108ULL; + Label cie; + section + .Mark(&cie) + .CIEHeader(code_factor, data_factor, return_register, version, + "") + // Provide a CFA rule, because register rules require them. + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x6ca1d50e).ULEB128(0x372e38e8) + // Provide an offset(N) rule for register 0x3c. + .D8(dwarf2reader::DW_CFA_offset | 0x3c).ULEB128(0xb348) + .FinishEntry() + // In the FDE... + .FDEHeader(cie, fde_start, fde_size) + // At a second address, provide a new offset(N) rule for register 0x3c. + .D8(dwarf2reader::DW_CFA_advance_loc | 0x13) + .D8(dwarf2reader::DW_CFA_offset | 0x3c).ULEB128(0x9a50) + // At a third address, restore the original rule for register 0x3c. + .D8(dwarf2reader::DW_CFA_advance_loc | 0x01) + .D8(dwarf2reader::DW_CFA_restore | 0x3c) + .FinishEntry(); + + { + InSequence s; + EXPECT_CALL(handler, + Entry(_, fde_start, fde_size, version, "", return_register)) + .WillOnce(Return(true)); + // CIE's CFA rule. + EXPECT_CALL(handler, + ValOffsetRule(fde_start, kCFARegister, 0x6ca1d50e, 0x372e38e8)) + .WillOnce(Return(true)); + // CIE's rule for register 0x3c. + EXPECT_CALL(handler, + OffsetRule(fde_start, 0x3c, kCFARegister, 0xb348 * data_factor)) + .WillOnce(Return(true)); + // FDE's rule for register 0x3c. + EXPECT_CALL(handler, + OffsetRule(fde_start + 0x13 * code_factor, 0x3c, + kCFARegister, 0x9a50 * data_factor)) + .WillOnce(Return(true)); + // Restore CIE's rule for register 0x3c. + EXPECT_CALL(handler, + OffsetRule(fde_start + (0x13 + 0x01) * code_factor, 0x3c, + kCFARegister, 0xb348 * data_factor)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + } + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_restoreNoRule) { + CFISection section(kBigEndian, 4); + code_factor = 0x005f78143c1c3b82ULL; + data_factor = 0x25d0; + return_register = 0xe8; + version = 1; + fde_start = 0x4062e30f; + fde_size = 0x5302a389; + Label cie; + section + .Mark(&cie) + .CIEHeader(code_factor, data_factor, return_register, version, "") + // Provide a CFA rule, because register rules require them. + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x470aa334).ULEB128(0x099ef127) + .FinishEntry() + // In the FDE... + .FDEHeader(cie, fde_start, fde_size) + // At a second address, provide an offset(N) rule for register 0x2c. + .D8(dwarf2reader::DW_CFA_advance_loc | 0x7) + .D8(dwarf2reader::DW_CFA_offset | 0x2c).ULEB128(0x1f47) + // At a third address, restore the (missing) CIE rule for register 0x2c. + .D8(dwarf2reader::DW_CFA_advance_loc | 0xb) + .D8(dwarf2reader::DW_CFA_restore | 0x2c) + .FinishEntry(); + + { + InSequence s; + EXPECT_CALL(handler, + Entry(_, fde_start, fde_size, version, "", return_register)) + .WillOnce(Return(true)); + // CIE's CFA rule. + EXPECT_CALL(handler, + ValOffsetRule(fde_start, kCFARegister, 0x470aa334, 0x099ef127)) + .WillOnce(Return(true)); + // FDE's rule for register 0x2c. + EXPECT_CALL(handler, + OffsetRule(fde_start + 0x7 * code_factor, 0x2c, + kCFARegister, 0x1f47 * data_factor)) + .WillOnce(Return(true)); + // Restore CIE's (missing) rule for register 0x2c. + EXPECT_CALL(handler, + SameValueRule(fde_start + (0x7 + 0xb) * code_factor, 0x2c)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + } + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_restore_extended) { + CFISection section(kBigEndian, 4); + code_factor = 0x126e; + data_factor = -0xd8b; + return_register = 0x77711787; + version = 3; + fde_start = 0x01f55a45; + fde_size = 0x452adb80; + Label cie; + section + .Mark(&cie) + .CIEHeader(code_factor, data_factor, return_register, version, + "", true /* dwarf64 */ ) + // Provide a CFA rule, because register rules require them. + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x56fa0edd).ULEB128(0x097f78a5) + // Provide an offset(N) rule for register 0x0f9b8a1c. + .D8(dwarf2reader::DW_CFA_offset_extended) + .ULEB128(0x0f9b8a1c).ULEB128(0xc979) + .FinishEntry() + // In the FDE... + .FDEHeader(cie, fde_start, fde_size) + // At a second address, provide a new offset(N) rule for reg 0x0f9b8a1c. + .D8(dwarf2reader::DW_CFA_advance_loc | 0x3) + .D8(dwarf2reader::DW_CFA_offset_extended) + .ULEB128(0x0f9b8a1c).ULEB128(0x3b7b) + // At a third address, restore the original rule for register 0x0f9b8a1c. + .D8(dwarf2reader::DW_CFA_advance_loc | 0x04) + .D8(dwarf2reader::DW_CFA_restore_extended).ULEB128(0x0f9b8a1c) + .FinishEntry(); + + { + InSequence s; + EXPECT_CALL(handler, + Entry(_, fde_start, fde_size, version, "", return_register)) + .WillOnce(Return(true)); + // CIE's CFA rule. + EXPECT_CALL(handler, + ValOffsetRule(fde_start, kCFARegister, 0x56fa0edd, 0x097f78a5)) + .WillOnce(Return(true)); + // CIE's rule for register 0x0f9b8a1c. + EXPECT_CALL(handler, + OffsetRule(fde_start, 0x0f9b8a1c, kCFARegister, + 0xc979 * data_factor)) + .WillOnce(Return(true)); + // FDE's rule for register 0x0f9b8a1c. + EXPECT_CALL(handler, + OffsetRule(fde_start + 0x3 * code_factor, 0x0f9b8a1c, + kCFARegister, 0x3b7b * data_factor)) + .WillOnce(Return(true)); + // Restore CIE's rule for register 0x0f9b8a1c. + EXPECT_CALL(handler, + OffsetRule(fde_start + (0x3 + 0x4) * code_factor, 0x0f9b8a1c, + kCFARegister, 0xc979 * data_factor)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + } + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_remember_and_restore_state) { + CFISection section(kLittleEndian, 8); + StockCIEAndFDE(§ion); + + // We create a state, save it, modify it, and then restore. We + // refer to the state that is overridden the restore as the + // "outgoing" state, and the restored state the "incoming" state. + // + // Register outgoing incoming expect + // 1 offset(N) no rule new "same value" rule + // 2 register(R) offset(N) report changed rule + // 3 offset(N) offset(M) report changed offset + // 4 offset(N) offset(N) no report + // 5 offset(N) no rule new "same value" rule + section + // Create the "incoming" state, which we will save and later restore. + .D8(dwarf2reader::DW_CFA_offset | 2).ULEB128(0x9806) + .D8(dwarf2reader::DW_CFA_offset | 3).ULEB128(0x995d) + .D8(dwarf2reader::DW_CFA_offset | 4).ULEB128(0x7055) + .D8(dwarf2reader::DW_CFA_remember_state) + // Advance to a new instruction; an implementation could legitimately + // ignore all but the final rule for a given register at a given address. + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + // Create the "outgoing" state, which we will discard. + .D8(dwarf2reader::DW_CFA_offset | 1).ULEB128(0xea1a) + .D8(dwarf2reader::DW_CFA_register).ULEB128(2).ULEB128(0x1d2a3767) + .D8(dwarf2reader::DW_CFA_offset | 3).ULEB128(0xdd29) + .D8(dwarf2reader::DW_CFA_offset | 5).ULEB128(0xf1ce) + // At a third address, restore the incoming state. + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + uint64 addr = fde_start; + + // Expect the incoming rules to be reported. + EXPECT_CALL(handler, OffsetRule(addr, 2, kCFARegister, 0x9806 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, OffsetRule(addr, 3, kCFARegister, 0x995d * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, OffsetRule(addr, 4, kCFARegister, 0x7055 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + + addr += code_factor; + + // After the save, we establish the outgoing rule set. + EXPECT_CALL(handler, OffsetRule(addr, 1, kCFARegister, 0xea1a * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, RegisterRule(addr, 2, 0x1d2a3767)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, OffsetRule(addr, 3, kCFARegister, 0xdd29 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, OffsetRule(addr, 5, kCFARegister, 0xf1ce * data_factor)) + .InSequence(s).WillOnce(Return(true)); + + addr += code_factor; + + // Finally, after the restore, expect to see the differences from + // the outgoing to the incoming rules reported. + EXPECT_CALL(handler, SameValueRule(addr, 1)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, OffsetRule(addr, 2, kCFARegister, 0x9806 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, OffsetRule(addr, 3, kCFARegister, 0x995d * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, SameValueRule(addr, 5)) + .InSequence(s).WillOnce(Return(true)); + + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +// Check that restoring a rule set reports changes to the CFA rule. +TEST_F(CFIInsn, DW_CFA_remember_and_restore_stateCFA) { + CFISection section(kBigEndian, 4); + StockCIEAndFDE(§ion); + + section + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_def_cfa_offset).ULEB128(0x90481102) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, ValOffsetRule(fde_start + code_factor, kCFARegister, + cfa_base_register, 0x90481102)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, ValOffsetRule(fde_start + code_factor * 2, kCFARegister, + cfa_base_register, cfa_offset)) + .InSequence(s).WillOnce(Return(true)); + + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_nop) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_nop) + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x3fb8d4f1).ULEB128(0x078dc67b) + .D8(dwarf2reader::DW_CFA_nop) + .FinishEntry(); + + EXPECT_CALL(handler, + ValOffsetRule(fde_start, kCFARegister, 0x3fb8d4f1, 0x078dc67b)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_GNU_window_save) { + CFISection section(kBigEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_GNU_window_save) + .FinishEntry(); + + // Don't include all the rules in any particular sequence. + + // The caller's %o0-%o7 have become the callee's %i0-%i7. This is + // the GCC register numbering. + for (int i = 8; i < 16; i++) + EXPECT_CALL(handler, RegisterRule(fde_start, i, i + 16)) + .WillOnce(Return(true)); + // The caller's %l0-%l7 and %i0-%i7 have been saved at the top of + // its frame. + for (int i = 16; i < 32; i++) + EXPECT_CALL(handler, OffsetRule(fde_start, i, kCFARegister, (i-16) * 4)) + .WillOnce(Return(true)); + + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_GNU_args_size) { + CFISection section(kLittleEndian, 8); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_GNU_args_size).ULEB128(0xeddfa520) + // Verify that we see this, meaning we parsed the above properly. + .D8(dwarf2reader::DW_CFA_offset | 0x23).ULEB128(0x269) + .FinishEntry(); + + EXPECT_CALL(handler, + OffsetRule(fde_start, 0x23, kCFARegister, 0x269 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIInsn, DW_CFA_GNU_negative_offset_extended) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_GNU_negative_offset_extended) + .ULEB128(0x430cc87a).ULEB128(0x613) + .FinishEntry(); + + EXPECT_CALL(handler, + OffsetRule(fde_start, 0x430cc87a, + kCFARegister, -0x613 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion); +} + +// Three FDEs: skip the second +TEST_F(CFIInsn, SkipFDE) { + CFISection section(kBigEndian, 4); + Label cie; + section + // CIE, used by all FDEs. + .Mark(&cie) + .CIEHeader(0x010269f2, 0x9177, 0xedca5849, 2, "") + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(0x42ed390b).ULEB128(0x98f43aad) + .FinishEntry() + // First FDE. + .FDEHeader(cie, 0xa870ebdd, 0x60f6aa4) + .D8(dwarf2reader::DW_CFA_register).ULEB128(0x3a860351).ULEB128(0x6c9a6bcf) + .FinishEntry() + // Second FDE. + .FDEHeader(cie, 0xc534f7c0, 0xf6552e9, true /* dwarf64 */) + .D8(dwarf2reader::DW_CFA_register).ULEB128(0x1b62c234).ULEB128(0x26586b18) + .FinishEntry() + // Third FDE. + .FDEHeader(cie, 0xf681cfc8, 0x7e4594e) + .D8(dwarf2reader::DW_CFA_register).ULEB128(0x26c53934).ULEB128(0x18eeb8a4) + .FinishEntry(); + + { + InSequence s; + + // Process the first FDE. + EXPECT_CALL(handler, Entry(_, 0xa870ebdd, 0x60f6aa4, 2, "", 0xedca5849)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, ValOffsetRule(0xa870ebdd, kCFARegister, + 0x42ed390b, 0x98f43aad)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, RegisterRule(0xa870ebdd, 0x3a860351, 0x6c9a6bcf)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()) + .WillOnce(Return(true)); + + // Skip the second FDE. + EXPECT_CALL(handler, Entry(_, 0xc534f7c0, 0xf6552e9, 2, "", 0xedca5849)) + .WillOnce(Return(false)); + + // Process the third FDE. + EXPECT_CALL(handler, Entry(_, 0xf681cfc8, 0x7e4594e, 2, "", 0xedca5849)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, ValOffsetRule(0xf681cfc8, kCFARegister, + 0x42ed390b, 0x98f43aad)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, RegisterRule(0xf681cfc8, 0x26c53934, 0x18eeb8a4)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, End()) + .WillOnce(Return(true)); + } + + ParseSection(§ion); +} + +// Quit processing in the middle of an entry's instructions. +TEST_F(CFIInsn, QuitMidentry) { + CFISection section(kLittleEndian, 8); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_register).ULEB128(0xe0cf850d).ULEB128(0x15aab431) + .D8(dwarf2reader::DW_CFA_expression).ULEB128(0x46750aa5).Block("meat") + .FinishEntry(); + + EXPECT_CALL(handler, RegisterRule(fde_start, 0xe0cf850d, 0x15aab431)) + .InSequence(s).WillOnce(Return(false)); + EXPECT_CALL(handler, End()) + .InSequence(s).WillOnce(Return(true)); + + ParseSection(§ion, false); +} + +class CFIRestore: public CFIInsnFixture, public Test { }; + +TEST_F(CFIRestore, RestoreUndefinedRuleUnchanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0x0bac878e) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, UndefinedRule(fde_start, 0x0bac878e)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreUndefinedRuleChanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0x7dedff5f) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_same_value).ULEB128(0x7dedff5f) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, UndefinedRule(fde_start, 0x7dedff5f)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, SameValueRule(fde_start + code_factor, 0x7dedff5f)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, UndefinedRule(fde_start + 2 * code_factor, 0x7dedff5f)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreSameValueRuleUnchanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_same_value).ULEB128(0xadbc9b3a) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, SameValueRule(fde_start, 0xadbc9b3a)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreSameValueRuleChanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_same_value).ULEB128(0x3d90dcb5) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0x3d90dcb5) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, SameValueRule(fde_start, 0x3d90dcb5)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, UndefinedRule(fde_start + code_factor, 0x3d90dcb5)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, SameValueRule(fde_start + 2 * code_factor, 0x3d90dcb5)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreOffsetRuleUnchanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_offset | 0x14).ULEB128(0xb6f) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, OffsetRule(fde_start, 0x14, + kCFARegister, 0xb6f * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreOffsetRuleChanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_offset | 0x21).ULEB128(0xeb7) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0x21) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, OffsetRule(fde_start, 0x21, + kCFARegister, 0xeb7 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, UndefinedRule(fde_start + code_factor, 0x21)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, OffsetRule(fde_start + 2 * code_factor, 0x21, + kCFARegister, 0xeb7 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreOffsetRuleChangedOffset) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_offset | 0x21).ULEB128(0x134) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_offset | 0x21).ULEB128(0xf4f) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, OffsetRule(fde_start, 0x21, + kCFARegister, 0x134 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, OffsetRule(fde_start + code_factor, 0x21, + kCFARegister, 0xf4f * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, OffsetRule(fde_start + 2 * code_factor, 0x21, + kCFARegister, 0x134 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreValOffsetRuleUnchanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_val_offset).ULEB128(0x829caee6).ULEB128(0xe4c) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, ValOffsetRule(fde_start, 0x829caee6, + kCFARegister, 0xe4c * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreValOffsetRuleChanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_val_offset).ULEB128(0xf17c36d6).ULEB128(0xeb7) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0xf17c36d6) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, ValOffsetRule(fde_start, 0xf17c36d6, + kCFARegister, 0xeb7 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, UndefinedRule(fde_start + code_factor, 0xf17c36d6)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, ValOffsetRule(fde_start + 2 * code_factor, 0xf17c36d6, + kCFARegister, 0xeb7 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreValOffsetRuleChangedValOffset) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_val_offset).ULEB128(0x2cf0ab1b).ULEB128(0x562) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_val_offset).ULEB128(0x2cf0ab1b).ULEB128(0xe88) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, ValOffsetRule(fde_start, 0x2cf0ab1b, + kCFARegister, 0x562 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, ValOffsetRule(fde_start + code_factor, 0x2cf0ab1b, + kCFARegister, 0xe88 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, ValOffsetRule(fde_start + 2 * code_factor, 0x2cf0ab1b, + kCFARegister, 0x562 * data_factor)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreRegisterRuleUnchanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_register).ULEB128(0x77514acc).ULEB128(0x464de4ce) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, RegisterRule(fde_start, 0x77514acc, 0x464de4ce)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreRegisterRuleChanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_register).ULEB128(0xe39acce5).ULEB128(0x095f1559) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0xe39acce5) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, RegisterRule(fde_start, 0xe39acce5, 0x095f1559)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, UndefinedRule(fde_start + code_factor, 0xe39acce5)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, RegisterRule(fde_start + 2 * code_factor, 0xe39acce5, + 0x095f1559)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreRegisterRuleChangedRegister) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_register).ULEB128(0xd40e21b1).ULEB128(0x16607d6a) + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_register).ULEB128(0xd40e21b1).ULEB128(0xbabb4742) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, RegisterRule(fde_start, 0xd40e21b1, 0x16607d6a)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, RegisterRule(fde_start + code_factor, 0xd40e21b1, + 0xbabb4742)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, RegisterRule(fde_start + 2 * code_factor, 0xd40e21b1, + 0x16607d6a)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreExpressionRuleUnchanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_expression).ULEB128(0x666ae152).Block("dwarf") + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, ExpressionRule(fde_start, 0x666ae152, "dwarf")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreExpressionRuleChanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_expression).ULEB128(0xb5ca5c46).Block("elf") + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0xb5ca5c46) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, ExpressionRule(fde_start, 0xb5ca5c46, "elf")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, UndefinedRule(fde_start + code_factor, 0xb5ca5c46)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, ExpressionRule(fde_start + 2 * code_factor, 0xb5ca5c46, + "elf")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreExpressionRuleChangedExpression) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_expression).ULEB128(0x500f5739).Block("smurf") + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_expression).ULEB128(0x500f5739).Block("orc") + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, ExpressionRule(fde_start, 0x500f5739, "smurf")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, ExpressionRule(fde_start + code_factor, 0x500f5739, + "orc")) + .InSequence(s).WillOnce(Return(true)); + // Expectations are not wishes. + EXPECT_CALL(handler, ExpressionRule(fde_start + 2 * code_factor, 0x500f5739, + "smurf")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreValExpressionRuleUnchanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_val_expression).ULEB128(0x666ae152) + .Block("hideous") + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + EXPECT_CALL(handler, ValExpressionRule(fde_start, 0x666ae152, "hideous")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreValExpressionRuleChanged) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_val_expression).ULEB128(0xb5ca5c46) + .Block("revolting") + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0xb5ca5c46) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("RestoreValExpressionRuleChanged", section); + + EXPECT_CALL(handler, ValExpressionRule(fde_start, 0xb5ca5c46, "revolting")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, UndefinedRule(fde_start + code_factor, 0xb5ca5c46)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, ValExpressionRule(fde_start + 2 * code_factor, 0xb5ca5c46, + "revolting")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +TEST_F(CFIRestore, RestoreValExpressionRuleChangedValExpression) { + CFISection section(kLittleEndian, 4); + StockCIEAndFDE(§ion); + section + .D8(dwarf2reader::DW_CFA_val_expression).ULEB128(0x500f5739) + .Block("repulsive") + .D8(dwarf2reader::DW_CFA_remember_state) + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_val_expression).ULEB128(0x500f5739) + .Block("nauseous") + .D8(dwarf2reader::DW_CFA_advance_loc | 1) + .D8(dwarf2reader::DW_CFA_restore_state) + .FinishEntry(); + + PERHAPS_WRITE_DEBUG_FRAME_FILE("RestoreValExpressionRuleChangedValExpression", + section); + + EXPECT_CALL(handler, ValExpressionRule(fde_start, 0x500f5739, "repulsive")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, ValExpressionRule(fde_start + code_factor, 0x500f5739, + "nauseous")) + .InSequence(s).WillOnce(Return(true)); + // Expectations are not wishes. + EXPECT_CALL(handler, ValExpressionRule(fde_start + 2 * code_factor, 0x500f5739, + "repulsive")) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()).WillOnce(Return(true)); + + ParseSection(§ion); +} + +struct EHFrameFixture: public CFIInsnFixture { + EHFrameFixture() + : CFIInsnFixture(), section(kBigEndian, 4, true) { + encoded_pointer_bases.cfi = 0x7f496cb2; + encoded_pointer_bases.text = 0x540f67b6; + encoded_pointer_bases.data = 0xe3eab768; + section.SetEncodedPointerBases(encoded_pointer_bases); + } + CFISection section; + CFISection::EncodedPointerBases encoded_pointer_bases; + + // Parse CFIInsnFixture::ParseSection, but parse the section as + // .eh_frame data, supplying stock base addresses. + void ParseEHFrameSection(CFISection *section, bool succeeds = true) { + EXPECT_TRUE(section->ContainsEHFrame()); + string contents; + EXPECT_TRUE(section->GetContents(&contents)); + dwarf2reader::Endianness endianness; + if (section->endianness() == kBigEndian) + endianness = ENDIANNESS_BIG; + else { + assert(section->endianness() == kLittleEndian); + endianness = ENDIANNESS_LITTLE; + } + ByteReader byte_reader(endianness); + byte_reader.SetAddressSize(section->AddressSize()); + byte_reader.SetCFIDataBase(encoded_pointer_bases.cfi, + reinterpret_cast<const uint8_t *>(contents.data())); + byte_reader.SetTextBase(encoded_pointer_bases.text); + byte_reader.SetDataBase(encoded_pointer_bases.data); + CallFrameInfo parser(reinterpret_cast<const uint8_t *>(contents.data()), + contents.size(), + &byte_reader, &handler, &reporter, true); + if (succeeds) + EXPECT_TRUE(parser.Start()); + else + EXPECT_FALSE(parser.Start()); + } + +}; + +class EHFrame: public EHFrameFixture, public Test { }; + +// A simple CIE, an FDE, and a terminator. +TEST_F(EHFrame, Terminator) { + Label cie; + section + .Mark(&cie) + .CIEHeader(9968, 2466, 67, 1, "") + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(3772).ULEB128(1372) + .FinishEntry() + .FDEHeader(cie, 0x848037a1, 0x7b30475e) + .D8(dwarf2reader::DW_CFA_set_loc).D32(0x17713850) + .D8(dwarf2reader::DW_CFA_undefined).ULEB128(5721) + .FinishEntry() + .D32(0) // Terminate the sequence. + // This FDE should be ignored. + .FDEHeader(cie, 0xf19629fe, 0x439fb09b) + .FinishEntry(); + + PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.Terminator", section); + + EXPECT_CALL(handler, Entry(_, 0x848037a1, 0x7b30475e, 1, "", 67)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, ValOffsetRule(0x848037a1, kCFARegister, 3772, 1372)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, UndefinedRule(0x17713850, 5721)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(reporter, EarlyEHTerminator(_)) + .InSequence(s).WillOnce(Return()); + + ParseEHFrameSection(§ion); +} + +// The parser should recognize the Linux Standards Base 'z' augmentations. +TEST_F(EHFrame, SimpleFDE) { + DwarfPointerEncoding lsda_encoding = + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_indirect + | dwarf2reader::DW_EH_PE_datarel + | dwarf2reader::DW_EH_PE_sdata2); + DwarfPointerEncoding fde_encoding = + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_textrel + | dwarf2reader::DW_EH_PE_udata2); + + section.SetPointerEncoding(fde_encoding); + section.SetEncodedPointerBases(encoded_pointer_bases); + Label cie; + section + .Mark(&cie) + .CIEHeader(4873, 7012, 100, 1, "zSLPR") + .ULEB128(7) // Augmentation data length + .D8(lsda_encoding) // LSDA pointer format + .D8(dwarf2reader::DW_EH_PE_pcrel) // personality pointer format + .EncodedPointer(0x97baa00, dwarf2reader::DW_EH_PE_pcrel) // and value + .D8(fde_encoding) // FDE pointer format + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(6706).ULEB128(31) + .FinishEntry() + .FDEHeader(cie, 0x540f6b56, 0xf686) + .ULEB128(2) // Augmentation data length + .EncodedPointer(0xe3eab475, lsda_encoding) // LSDA pointer, signed + .D8(dwarf2reader::DW_CFA_set_loc) + .EncodedPointer(0x540fa4ce, fde_encoding) + .D8(dwarf2reader::DW_CFA_undefined).ULEB128(0x675e) + .FinishEntry() + .D32(0); // terminator + + PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.SimpleFDE", section); + + EXPECT_CALL(handler, Entry(_, 0x540f6b56, 0xf686, 1, "zSLPR", 100)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, PersonalityRoutine(0x97baa00, false)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, LanguageSpecificDataArea(0xe3eab475, true)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, SignalHandler()) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, ValOffsetRule(0x540f6b56, kCFARegister, 6706, 31)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, UndefinedRule(0x540fa4ce, 0x675e)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()) + .InSequence(s).WillOnce(Return(true)); + + ParseEHFrameSection(§ion); +} + +// Check that we can handle an empty 'z' augmentation. +TEST_F(EHFrame, EmptyZ) { + Label cie; + section + .Mark(&cie) + .CIEHeader(5955, 5805, 228, 1, "z") + .ULEB128(0) // Augmentation data length + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(3629).ULEB128(247) + .FinishEntry() + .FDEHeader(cie, 0xda007738, 0xfb55c641) + .ULEB128(0) // Augmentation data length + .D8(dwarf2reader::DW_CFA_advance_loc1).D8(11) + .D8(dwarf2reader::DW_CFA_undefined).ULEB128(3769) + .FinishEntry(); + + PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.EmptyZ", section); + + EXPECT_CALL(handler, Entry(_, 0xda007738, 0xfb55c641, 1, "z", 228)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, ValOffsetRule(0xda007738, kCFARegister, 3629, 247)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, UndefinedRule(0xda007738 + 11 * 5955, 3769)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()) + .InSequence(s).WillOnce(Return(true)); + + ParseEHFrameSection(§ion); +} + +// Check that we recognize bad 'z' augmentation characters. +TEST_F(EHFrame, BadZ) { + Label cie; + section + .Mark(&cie) + .CIEHeader(6937, 1045, 142, 1, "zQ") + .ULEB128(0) // Augmentation data length + .D8(dwarf2reader::DW_CFA_def_cfa).ULEB128(9006).ULEB128(7725) + .FinishEntry() + .FDEHeader(cie, 0x1293efa8, 0x236f53f2) + .ULEB128(0) // Augmentation data length + .D8(dwarf2reader::DW_CFA_advance_loc | 12) + .D8(dwarf2reader::DW_CFA_register).ULEB128(5667).ULEB128(3462) + .FinishEntry(); + + PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.BadZ", section); + + EXPECT_CALL(reporter, UnrecognizedAugmentation(_, "zQ")) + .WillOnce(Return()); + + ParseEHFrameSection(§ion, false); +} + +TEST_F(EHFrame, zL) { + Label cie; + DwarfPointerEncoding lsda_encoding = + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_funcrel + | dwarf2reader::DW_EH_PE_udata2); + section + .Mark(&cie) + .CIEHeader(9285, 9959, 54, 1, "zL") + .ULEB128(1) // Augmentation data length + .D8(lsda_encoding) // encoding for LSDA pointer in FDE + + .FinishEntry() + .FDEHeader(cie, 0xd40091aa, 0x9aa6e746) + .ULEB128(2) // Augmentation data length + .EncodedPointer(0xd40099cd, lsda_encoding) // LSDA pointer + .FinishEntry() + .D32(0); // terminator + + PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.zL", section); + + EXPECT_CALL(handler, Entry(_, 0xd40091aa, 0x9aa6e746, 1, "zL", 54)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, LanguageSpecificDataArea(0xd40099cd, false)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()) + .InSequence(s).WillOnce(Return(true)); + + ParseEHFrameSection(§ion); +} + +TEST_F(EHFrame, zP) { + Label cie; + DwarfPointerEncoding personality_encoding = + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_datarel + | dwarf2reader::DW_EH_PE_udata2); + section + .Mark(&cie) + .CIEHeader(1097, 6313, 17, 1, "zP") + .ULEB128(3) // Augmentation data length + .D8(personality_encoding) // encoding for personality routine + .EncodedPointer(0xe3eaccac, personality_encoding) // value + .FinishEntry() + .FDEHeader(cie, 0x0c8350c9, 0xbef11087) + .ULEB128(0) // Augmentation data length + .FinishEntry() + .D32(0); // terminator + + PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.zP", section); + + EXPECT_CALL(handler, Entry(_, 0x0c8350c9, 0xbef11087, 1, "zP", 17)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, PersonalityRoutine(0xe3eaccac, false)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()) + .InSequence(s).WillOnce(Return(true)); + + ParseEHFrameSection(§ion); +} + +TEST_F(EHFrame, zR) { + Label cie; + DwarfPointerEncoding pointer_encoding = + DwarfPointerEncoding(dwarf2reader::DW_EH_PE_textrel + | dwarf2reader::DW_EH_PE_sdata2); + section.SetPointerEncoding(pointer_encoding); + section + .Mark(&cie) + .CIEHeader(8011, 5496, 75, 1, "zR") + .ULEB128(1) // Augmentation data length + .D8(pointer_encoding) // encoding for FDE addresses + .FinishEntry() + .FDEHeader(cie, 0x540f9431, 0xbd0) + .ULEB128(0) // Augmentation data length + .FinishEntry() + .D32(0); // terminator + + PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.zR", section); + + EXPECT_CALL(handler, Entry(_, 0x540f9431, 0xbd0, 1, "zR", 75)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()) + .InSequence(s).WillOnce(Return(true)); + + ParseEHFrameSection(§ion); +} + +TEST_F(EHFrame, zS) { + Label cie; + section + .Mark(&cie) + .CIEHeader(9217, 7694, 57, 1, "zS") + .ULEB128(0) // Augmentation data length + .FinishEntry() + .FDEHeader(cie, 0xd40091aa, 0x9aa6e746) + .ULEB128(0) // Augmentation data length + .FinishEntry() + .D32(0); // terminator + + PERHAPS_WRITE_EH_FRAME_FILE("EHFrame.zS", section); + + EXPECT_CALL(handler, Entry(_, 0xd40091aa, 0x9aa6e746, 1, "zS", 57)) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, SignalHandler()) + .InSequence(s).WillOnce(Return(true)); + EXPECT_CALL(handler, End()) + .InSequence(s).WillOnce(Return(true)); + + ParseEHFrameSection(§ion); +} + +// These tests require manual inspection of the test output. +struct CFIReporterFixture { + CFIReporterFixture() : reporter("test file name", "test section name") { } + CallFrameInfo::Reporter reporter; +}; + +class CFIReporter: public CFIReporterFixture, public Test { }; + +TEST_F(CFIReporter, Incomplete) { + reporter.Incomplete(0x0102030405060708ULL, CallFrameInfo::kUnknown); +} + +TEST_F(CFIReporter, EarlyEHTerminator) { + reporter.EarlyEHTerminator(0x0102030405060708ULL); +} + +TEST_F(CFIReporter, CIEPointerOutOfRange) { + reporter.CIEPointerOutOfRange(0x0123456789abcdefULL, 0xfedcba9876543210ULL); +} + +TEST_F(CFIReporter, BadCIEId) { + reporter.BadCIEId(0x0123456789abcdefULL, 0xfedcba9876543210ULL); +} + +TEST_F(CFIReporter, UnrecognizedVersion) { + reporter.UnrecognizedVersion(0x0123456789abcdefULL, 43); +} + +TEST_F(CFIReporter, UnrecognizedAugmentation) { + reporter.UnrecognizedAugmentation(0x0123456789abcdefULL, "poodles"); +} + +TEST_F(CFIReporter, InvalidPointerEncoding) { + reporter.InvalidPointerEncoding(0x0123456789abcdefULL, 0x42); +} + +TEST_F(CFIReporter, UnusablePointerEncoding) { + reporter.UnusablePointerEncoding(0x0123456789abcdefULL, 0x42); +} + +TEST_F(CFIReporter, RestoreInCIE) { + reporter.RestoreInCIE(0x0123456789abcdefULL, 0xfedcba9876543210ULL); +} + +TEST_F(CFIReporter, BadInstruction) { + reporter.BadInstruction(0x0123456789abcdefULL, CallFrameInfo::kFDE, + 0xfedcba9876543210ULL); +} + +TEST_F(CFIReporter, NoCFARule) { + reporter.NoCFARule(0x0123456789abcdefULL, CallFrameInfo::kCIE, + 0xfedcba9876543210ULL); +} + +TEST_F(CFIReporter, EmptyStateStack) { + reporter.EmptyStateStack(0x0123456789abcdefULL, CallFrameInfo::kTerminator, + 0xfedcba9876543210ULL); +} + +TEST_F(CFIReporter, ClearingCFARule) { + reporter.ClearingCFARule(0x0123456789abcdefULL, CallFrameInfo::kFDE, + 0xfedcba9876543210ULL); +} + +#ifdef WRITE_ELF +// See comments at the top of the file mentioning WRITE_ELF for details. + +using google_breakpad::test_assembler::Section; + +struct ELFSectionHeader { + ELFSectionHeader(unsigned int set_type) + : type(set_type), flags(0), address(0), link(0), info(0), + alignment(1), entry_size(0) { } + Label name; + unsigned int type; + uint64_t flags; + uint64_t address; + Label file_offset; + Label file_size; + unsigned int link; + unsigned int info; + uint64_t alignment; + uint64_t entry_size; +}; + +void AppendSectionHeader(CFISection *table, const ELFSectionHeader &header) { + (*table) + .D32(header.name) // name, index in string tbl + .D32(header.type) // type + .Address(header.flags) // flags + .Address(header.address) // address in memory + .Address(header.file_offset) // offset in ELF file + .Address(header.file_size) // length in bytes + .D32(header.link) // link to related section + .D32(header.info) // miscellaneous + .Address(header.alignment) // alignment + .Address(header.entry_size); // entry size +} + +void WriteELFFrameSection(const char *filename, const char *cfi_name, + const CFISection &cfi) { + int elf_class = cfi.AddressSize() == 4 ? ELFCLASS32 : ELFCLASS64; + int elf_data = (cfi.endianness() == kBigEndian + ? ELFDATA2MSB : ELFDATA2LSB); + CFISection elf(cfi.endianness(), cfi.AddressSize()); + Label elf_header_size, section_table_offset; + elf + .Append("\x7f" "ELF") + .D8(elf_class) // 32-bit or 64-bit ELF + .D8(elf_data) // endianness + .D8(1) // ELF version + .D8(ELFOSABI_LINUX) // Operating System/ABI indication + .D8(0) // ABI version + .Append(7, 0xda) // padding + .D16(ET_EXEC) // file type: executable file + .D16(EM_386) // architecture: Intel IA-32 + .D32(EV_CURRENT); // ELF version + elf + .Address(0x0123456789abcdefULL) // program entry point + .Address(0) // program header offset + .Address(section_table_offset) // section header offset + .D32(0) // processor-specific flags + .D16(elf_header_size) // ELF header size in bytes */ + .D16(elf_class == ELFCLASS32 ? 32 : 56) // program header entry size + .D16(0) // program header table entry count + .D16(elf_class == ELFCLASS32 ? 40 : 64) // section header entry size + .D16(3) // section count + .D16(1) // section name string table + .Mark(&elf_header_size); + + // The null section. Every ELF file has one, as the first entry in + // the section header table. + ELFSectionHeader null_header(SHT_NULL); + null_header.file_offset = 0; + null_header.file_size = 0; + + // The CFI section. The whole reason for writing out this ELF file + // is to put this in it so that we can run other dumping programs on + // it to check its contents. + ELFSectionHeader cfi_header(SHT_PROGBITS); + cfi_header.file_size = cfi.Size(); + + // The section holding the names of the sections. This is the + // section whose index appears in the e_shstrndx member of the ELF + // header. + ELFSectionHeader section_names_header(SHT_STRTAB); + CFISection section_names(cfi.endianness(), cfi.AddressSize()); + section_names + .Mark(&null_header.name) + .AppendCString("") + .Mark(§ion_names_header.name) + .AppendCString(".shstrtab") + .Mark(&cfi_header.name) + .AppendCString(cfi_name) + .Mark(§ion_names_header.file_size); + + // Create the section table. The ELF header's e_shoff member refers + // to this, and the e_shnum member gives the number of entries it + // contains. + CFISection section_table(cfi.endianness(), cfi.AddressSize()); + AppendSectionHeader(§ion_table, null_header); + AppendSectionHeader(§ion_table, section_names_header); + AppendSectionHeader(§ion_table, cfi_header); + + // Append the section table and the section contents to the ELF file. + elf + .Mark(§ion_table_offset) + .Append(section_table) + .Mark(§ion_names_header.file_offset) + .Append(section_names) + .Mark(&cfi_header.file_offset) + .Append(cfi); + + string contents; + if (!elf.GetContents(&contents)) { + fprintf(stderr, "failed to get ELF file contents\n"); + exit(1); + } + + FILE *out = fopen(filename, "w"); + if (!out) { + fprintf(stderr, "error opening ELF file '%s': %s\n", + filename, strerror(errno)); + exit(1); + } + + if (fwrite(contents.data(), 1, contents.size(), out) != contents.size()) { + fprintf(stderr, "error writing ELF data to '%s': %s\n", + filename, strerror(errno)); + exit(1); + } + + if (fclose(out) == EOF) { + fprintf(stderr, "error closing ELF file '%s': %s\n", + filename, strerror(errno)); + exit(1); + } +} +#endif diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2reader_die_unittest.cc b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader_die_unittest.cc new file mode 100644 index 0000000..71418eb --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader_die_unittest.cc @@ -0,0 +1,487 @@ +// Copyright (c) 2012, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// dwarf2reader_die_unittest.cc: Unit tests for dwarf2reader::CompilationUnit + +#include <stdint.h> +#include <stdlib.h> + +#include <iostream> +#include <string> +#include <vector> + +#include "breakpad_googletest_includes.h" +#include "common/dwarf/bytereader-inl.h" +#include "common/dwarf/dwarf2reader_test_common.h" +#include "common/dwarf/dwarf2reader.h" +#include "common/using_std_string.h" +#include "google_breakpad/common/breakpad_types.h" + +using google_breakpad::test_assembler::Endianness; +using google_breakpad::test_assembler::Label; +using google_breakpad::test_assembler::Section; +using google_breakpad::test_assembler::kBigEndian; +using google_breakpad::test_assembler::kLittleEndian; + +using dwarf2reader::ByteReader; +using dwarf2reader::CompilationUnit; +using dwarf2reader::Dwarf2Handler; +using dwarf2reader::DwarfAttribute; +using dwarf2reader::DwarfForm; +using dwarf2reader::DwarfHasChild; +using dwarf2reader::DwarfTag; +using dwarf2reader::ENDIANNESS_BIG; +using dwarf2reader::ENDIANNESS_LITTLE; +using dwarf2reader::SectionMap; + +using std::vector; +using testing::InSequence; +using testing::Pointee; +using testing::Return; +using testing::Sequence; +using testing::Test; +using testing::TestWithParam; +using testing::_; + +class MockDwarf2Handler: public Dwarf2Handler { + public: + MOCK_METHOD5(StartCompilationUnit, bool(uint64 offset, uint8 address_size, + uint8 offset_size, uint64 cu_length, + uint8 dwarf_version)); + MOCK_METHOD2(StartDIE, bool(uint64 offset, enum DwarfTag tag)); + MOCK_METHOD4(ProcessAttributeUnsigned, void(uint64 offset, + DwarfAttribute attr, + enum DwarfForm form, + uint64 data)); + MOCK_METHOD4(ProcessAttributeSigned, void(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + int64 data)); + MOCK_METHOD4(ProcessAttributeReference, void(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data)); + MOCK_METHOD5(ProcessAttributeBuffer, void(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + const uint8_t *data, + uint64 len)); + MOCK_METHOD4(ProcessAttributeString, void(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + const string& data)); + MOCK_METHOD4(ProcessAttributeSignature, void(uint64 offset, + DwarfAttribute attr, + enum DwarfForm form, + uint64 signature)); + MOCK_METHOD1(EndDIE, void(uint64 offset)); +}; + +struct DIEFixture { + + DIEFixture() { + // Fix the initial offset of the .debug_info and .debug_abbrev sections. + info.start() = 0; + abbrevs.start() = 0; + + // Default expectations for the data handler. + EXPECT_CALL(handler, StartCompilationUnit(_, _, _, _, _)).Times(0); + EXPECT_CALL(handler, StartDIE(_, _)).Times(0); + EXPECT_CALL(handler, ProcessAttributeUnsigned(_, _, _, _)).Times(0); + EXPECT_CALL(handler, ProcessAttributeSigned(_, _, _, _)).Times(0); + EXPECT_CALL(handler, ProcessAttributeReference(_, _, _, _)).Times(0); + EXPECT_CALL(handler, ProcessAttributeBuffer(_, _, _, _, _)).Times(0); + EXPECT_CALL(handler, ProcessAttributeString(_, _, _, _)).Times(0); + EXPECT_CALL(handler, EndDIE(_)).Times(0); + } + + // Return a reference to a section map whose .debug_info section refers + // to |info|, and whose .debug_abbrev section refers to |abbrevs|. This + // function returns a reference to the same SectionMap each time; new + // calls wipe out maps established by earlier calls. + const SectionMap &MakeSectionMap() { + // Copy the sections' contents into strings that will live as long as + // the map itself. + assert(info.GetContents(&info_contents)); + assert(abbrevs.GetContents(&abbrevs_contents)); + section_map.clear(); + section_map[".debug_info"].first + = reinterpret_cast<const uint8_t *>(info_contents.data()); + section_map[".debug_info"].second = info_contents.size(); + section_map[".debug_abbrev"].first + = reinterpret_cast<const uint8_t *>(abbrevs_contents.data()); + section_map[".debug_abbrev"].second = abbrevs_contents.size(); + return section_map; + } + + TestCompilationUnit info; + TestAbbrevTable abbrevs; + MockDwarf2Handler handler; + string abbrevs_contents, info_contents; + SectionMap section_map; +}; + +struct DwarfHeaderParams { + DwarfHeaderParams(Endianness endianness, size_t format_size, + int version, size_t address_size) + : endianness(endianness), format_size(format_size), + version(version), address_size(address_size) { } + Endianness endianness; + size_t format_size; // 4-byte or 8-byte DWARF offsets + int version; + size_t address_size; +}; + +class DwarfHeader: public DIEFixture, + public TestWithParam<DwarfHeaderParams> { }; + +TEST_P(DwarfHeader, Header) { + Label abbrev_table = abbrevs.Here(); + abbrevs.Abbrev(1, dwarf2reader::DW_TAG_compile_unit, + dwarf2reader::DW_children_yes) + .Attribute(dwarf2reader::DW_AT_name, dwarf2reader::DW_FORM_string) + .EndAbbrev() + .EndTable(); + + info.set_format_size(GetParam().format_size); + info.set_endianness(GetParam().endianness); + + info.Header(GetParam().version, abbrev_table, GetParam().address_size) + .ULEB128(1) // DW_TAG_compile_unit, with children + .AppendCString("sam") // DW_AT_name, DW_FORM_string + .D8(0); // end of children + info.Finish(); + + { + InSequence s; + EXPECT_CALL(handler, + StartCompilationUnit(0, GetParam().address_size, + GetParam().format_size, _, + GetParam().version)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, StartDIE(_, dwarf2reader::DW_TAG_compile_unit)) + .WillOnce(Return(true)); + EXPECT_CALL(handler, ProcessAttributeString(_, dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_string, + "sam")) + .WillOnce(Return()); + EXPECT_CALL(handler, EndDIE(_)) + .WillOnce(Return()); + } + + ByteReader byte_reader(GetParam().endianness == kLittleEndian ? + ENDIANNESS_LITTLE : ENDIANNESS_BIG); + CompilationUnit parser("", MakeSectionMap(), 0, &byte_reader, &handler); + EXPECT_EQ(parser.Start(), info_contents.size()); +} + +INSTANTIATE_TEST_CASE_P( + HeaderVariants, DwarfHeader, + ::testing::Values(DwarfHeaderParams(kLittleEndian, 4, 2, 4), + DwarfHeaderParams(kLittleEndian, 4, 2, 8), + DwarfHeaderParams(kLittleEndian, 4, 3, 4), + DwarfHeaderParams(kLittleEndian, 4, 3, 8), + DwarfHeaderParams(kLittleEndian, 4, 4, 4), + DwarfHeaderParams(kLittleEndian, 4, 4, 8), + DwarfHeaderParams(kLittleEndian, 8, 2, 4), + DwarfHeaderParams(kLittleEndian, 8, 2, 8), + DwarfHeaderParams(kLittleEndian, 8, 3, 4), + DwarfHeaderParams(kLittleEndian, 8, 3, 8), + DwarfHeaderParams(kLittleEndian, 8, 4, 4), + DwarfHeaderParams(kLittleEndian, 8, 4, 8), + DwarfHeaderParams(kBigEndian, 4, 2, 4), + DwarfHeaderParams(kBigEndian, 4, 2, 8), + DwarfHeaderParams(kBigEndian, 4, 3, 4), + DwarfHeaderParams(kBigEndian, 4, 3, 8), + DwarfHeaderParams(kBigEndian, 4, 4, 4), + DwarfHeaderParams(kBigEndian, 4, 4, 8), + DwarfHeaderParams(kBigEndian, 8, 2, 4), + DwarfHeaderParams(kBigEndian, 8, 2, 8), + DwarfHeaderParams(kBigEndian, 8, 3, 4), + DwarfHeaderParams(kBigEndian, 8, 3, 8), + DwarfHeaderParams(kBigEndian, 8, 4, 4), + DwarfHeaderParams(kBigEndian, 8, 4, 8))); + +struct DwarfFormsFixture: public DIEFixture { + // Start a compilation unit, as directed by |params|, containing one + // childless DIE of the given tag, with one attribute of the given name + // and form. The 'info' fixture member is left just after the abbrev + // code, waiting for the attribute value to be appended. + void StartSingleAttributeDIE(const DwarfHeaderParams ¶ms, + DwarfTag tag, DwarfAttribute name, + DwarfForm form) { + // Create the abbreviation table. + Label abbrev_table = abbrevs.Here(); + abbrevs.Abbrev(1, tag, dwarf2reader::DW_children_no) + .Attribute(name, form) + .EndAbbrev() + .EndTable(); + + // Create the compilation unit, up to the attribute value. + info.set_format_size(params.format_size); + info.set_endianness(params.endianness); + info.Header(params.version, abbrev_table, params.address_size) + .ULEB128(1); // abbrev code + } + + // Set up handler to expect a compilation unit matching |params|, + // containing one childless DIE of the given tag, in the sequence s. Stop + // just before the expectations. + void ExpectBeginCompilationUnit(const DwarfHeaderParams ¶ms, + DwarfTag tag, uint64 offset=0) { + EXPECT_CALL(handler, + StartCompilationUnit(offset, params.address_size, + params.format_size, _, + params.version)) + .InSequence(s) + .WillOnce(Return(true)); + EXPECT_CALL(handler, StartDIE(_, tag)) + .InSequence(s) + .WillOnce(Return(true)); + } + + void ExpectEndCompilationUnit() { + EXPECT_CALL(handler, EndDIE(_)) + .InSequence(s) + .WillOnce(Return()); + } + + void ParseCompilationUnit(const DwarfHeaderParams ¶ms, uint64 offset=0) { + ByteReader byte_reader(params.endianness == kLittleEndian ? + ENDIANNESS_LITTLE : ENDIANNESS_BIG); + CompilationUnit parser("", MakeSectionMap(), offset, &byte_reader, &handler); + EXPECT_EQ(offset + parser.Start(), info_contents.size()); + } + + // The sequence to which the fixture's methods append expectations. + Sequence s; +}; + +struct DwarfForms: public DwarfFormsFixture, + public TestWithParam<DwarfHeaderParams> { }; + +TEST_P(DwarfForms, addr) { + StartSingleAttributeDIE(GetParam(), dwarf2reader::DW_TAG_compile_unit, + dwarf2reader::DW_AT_low_pc, + dwarf2reader::DW_FORM_addr); + uint64_t value; + if (GetParam().address_size == 4) { + value = 0xc8e9ffcc; + info.D32(value); + } else { + value = 0xe942517fc2768564ULL; + info.D64(value); + } + info.Finish(); + + ExpectBeginCompilationUnit(GetParam(), dwarf2reader::DW_TAG_compile_unit); + EXPECT_CALL(handler, ProcessAttributeUnsigned(_, dwarf2reader::DW_AT_low_pc, + dwarf2reader::DW_FORM_addr, + value)) + .InSequence(s) + .WillOnce(Return()); + ExpectEndCompilationUnit(); + + ParseCompilationUnit(GetParam()); +} + +TEST_P(DwarfForms, block2_empty) { + StartSingleAttributeDIE(GetParam(), (DwarfTag) 0x16e4d2f7, + (DwarfAttribute) 0xe52c4463, + dwarf2reader::DW_FORM_block2); + info.D16(0); + info.Finish(); + + ExpectBeginCompilationUnit(GetParam(), (DwarfTag) 0x16e4d2f7); + EXPECT_CALL(handler, ProcessAttributeBuffer(_, (DwarfAttribute) 0xe52c4463, + dwarf2reader::DW_FORM_block2, + _, 0)) + .InSequence(s) + .WillOnce(Return()); + ExpectEndCompilationUnit(); + + ParseCompilationUnit(GetParam()); +} + +TEST_P(DwarfForms, block2) { + StartSingleAttributeDIE(GetParam(), (DwarfTag) 0x16e4d2f7, + (DwarfAttribute) 0xe52c4463, + dwarf2reader::DW_FORM_block2); + unsigned char data[258]; + memset(data, '*', sizeof(data)); + info.D16(sizeof(data)) + .Append(data, sizeof(data)); + info.Finish(); + + ExpectBeginCompilationUnit(GetParam(), (DwarfTag) 0x16e4d2f7); + EXPECT_CALL(handler, ProcessAttributeBuffer(_, (DwarfAttribute) 0xe52c4463, + dwarf2reader::DW_FORM_block2, + Pointee('*'), 258)) + .InSequence(s) + .WillOnce(Return()); + ExpectEndCompilationUnit(); + + ParseCompilationUnit(GetParam()); +} + +TEST_P(DwarfForms, flag_present) { + StartSingleAttributeDIE(GetParam(), (DwarfTag) 0x3e449ac2, + (DwarfAttribute) 0x359d1972, + dwarf2reader::DW_FORM_flag_present); + // DW_FORM_flag_present occupies no space in the DIE. + info.Finish(); + + ExpectBeginCompilationUnit(GetParam(), (DwarfTag) 0x3e449ac2); + EXPECT_CALL(handler, + ProcessAttributeUnsigned(_, (DwarfAttribute) 0x359d1972, + dwarf2reader::DW_FORM_flag_present, + 1)) + .InSequence(s) + .WillOnce(Return()); + ExpectEndCompilationUnit(); + + ParseCompilationUnit(GetParam()); +} + +TEST_P(DwarfForms, sec_offset) { + StartSingleAttributeDIE(GetParam(), (DwarfTag) 0x1d971689, + (DwarfAttribute) 0xa060bfd1, + dwarf2reader::DW_FORM_sec_offset); + uint64_t value; + if (GetParam().format_size == 4) { + value = 0xacc9c388; + info.D32(value); + } else { + value = 0xcffe5696ffe3ed0aULL; + info.D64(value); + } + info.Finish(); + + ExpectBeginCompilationUnit(GetParam(), (DwarfTag) 0x1d971689); + EXPECT_CALL(handler, ProcessAttributeUnsigned(_, (DwarfAttribute) 0xa060bfd1, + dwarf2reader::DW_FORM_sec_offset, + value)) + .InSequence(s) + .WillOnce(Return()); + ExpectEndCompilationUnit(); + + ParseCompilationUnit(GetParam()); +} + +TEST_P(DwarfForms, exprloc) { + StartSingleAttributeDIE(GetParam(), (DwarfTag) 0xb6d167bb, + (DwarfAttribute) 0xba3ae5cb, + dwarf2reader::DW_FORM_exprloc); + info.ULEB128(29) + .Append(29, 173); + info.Finish(); + + ExpectBeginCompilationUnit(GetParam(), (DwarfTag) 0xb6d167bb); + EXPECT_CALL(handler, ProcessAttributeBuffer(_, (DwarfAttribute) 0xba3ae5cb, + dwarf2reader::DW_FORM_exprloc, + Pointee(173), 29)) + .InSequence(s) + .WillOnce(Return()); + ExpectEndCompilationUnit(); + + ParseCompilationUnit(GetParam()); +} + +TEST_P(DwarfForms, ref_sig8) { + StartSingleAttributeDIE(GetParam(), (DwarfTag) 0x253e7b2b, + (DwarfAttribute) 0xd708d908, + dwarf2reader::DW_FORM_ref_sig8); + info.D64(0xf72fa0cb6ddcf9d6ULL); + info.Finish(); + + ExpectBeginCompilationUnit(GetParam(), (DwarfTag) 0x253e7b2b); + EXPECT_CALL(handler, ProcessAttributeSignature(_, (DwarfAttribute) 0xd708d908, + dwarf2reader::DW_FORM_ref_sig8, + 0xf72fa0cb6ddcf9d6ULL)) + .InSequence(s) + .WillOnce(Return()); + ExpectEndCompilationUnit(); + + ParseCompilationUnit(GetParam()); +} + +// A value passed to ProcessAttributeSignature is just an absolute number, +// not an offset within the compilation unit as most of the other +// DW_FORM_ref forms are. Check that the reader doesn't try to apply any +// offset to the signature, by reading it from a compilation unit that does +// not start at the beginning of the section. +TEST_P(DwarfForms, ref_sig8_not_first) { + info.Append(98, '*'); + StartSingleAttributeDIE(GetParam(), (DwarfTag) 0x253e7b2b, + (DwarfAttribute) 0xd708d908, + dwarf2reader::DW_FORM_ref_sig8); + info.D64(0xf72fa0cb6ddcf9d6ULL); + info.Finish(); + + ExpectBeginCompilationUnit(GetParam(), (DwarfTag) 0x253e7b2b, 98); + EXPECT_CALL(handler, ProcessAttributeSignature(_, (DwarfAttribute) 0xd708d908, + dwarf2reader::DW_FORM_ref_sig8, + 0xf72fa0cb6ddcf9d6ULL)) + .InSequence(s) + .WillOnce(Return()); + ExpectEndCompilationUnit(); + + ParseCompilationUnit(GetParam(), 98); +} + +// Tests for the other attribute forms could go here. + +INSTANTIATE_TEST_CASE_P( + HeaderVariants, DwarfForms, + ::testing::Values(DwarfHeaderParams(kLittleEndian, 4, 2, 4), + DwarfHeaderParams(kLittleEndian, 4, 2, 8), + DwarfHeaderParams(kLittleEndian, 4, 3, 4), + DwarfHeaderParams(kLittleEndian, 4, 3, 8), + DwarfHeaderParams(kLittleEndian, 4, 4, 4), + DwarfHeaderParams(kLittleEndian, 4, 4, 8), + DwarfHeaderParams(kLittleEndian, 8, 2, 4), + DwarfHeaderParams(kLittleEndian, 8, 2, 8), + DwarfHeaderParams(kLittleEndian, 8, 3, 4), + DwarfHeaderParams(kLittleEndian, 8, 3, 8), + DwarfHeaderParams(kLittleEndian, 8, 4, 4), + DwarfHeaderParams(kLittleEndian, 8, 4, 8), + DwarfHeaderParams(kBigEndian, 4, 2, 4), + DwarfHeaderParams(kBigEndian, 4, 2, 8), + DwarfHeaderParams(kBigEndian, 4, 3, 4), + DwarfHeaderParams(kBigEndian, 4, 3, 8), + DwarfHeaderParams(kBigEndian, 4, 4, 4), + DwarfHeaderParams(kBigEndian, 4, 4, 8), + DwarfHeaderParams(kBigEndian, 8, 2, 4), + DwarfHeaderParams(kBigEndian, 8, 2, 8), + DwarfHeaderParams(kBigEndian, 8, 3, 4), + DwarfHeaderParams(kBigEndian, 8, 3, 8), + DwarfHeaderParams(kBigEndian, 8, 4, 4), + DwarfHeaderParams(kBigEndian, 8, 4, 8))); diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2reader_test_common.h b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader_test_common.h new file mode 100644 index 0000000..e91de90 --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader_test_common.h @@ -0,0 +1,149 @@ +// -*- mode: c++ -*- + +// Copyright (c) 2012, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// dwarf2reader_test_common.h: Define TestCompilationUnit and +// TestAbbrevTable, classes for creating properly (and improperly) +// formatted DWARF compilation unit data for unit tests. + +#ifndef COMMON_DWARF_DWARF2READER_TEST_COMMON_H__ +#define COMMON_DWARF_DWARF2READER_TEST_COMMON_H__ + +#include "common/test_assembler.h" +#include "common/dwarf/dwarf2enums.h" + +// A subclass of test_assembler::Section, specialized for constructing +// DWARF compilation units. +class TestCompilationUnit: public google_breakpad::test_assembler::Section { + public: + typedef dwarf2reader::DwarfTag DwarfTag; + typedef dwarf2reader::DwarfAttribute DwarfAttribute; + typedef dwarf2reader::DwarfForm DwarfForm; + typedef google_breakpad::test_assembler::Label Label; + + // Set the section's DWARF format size (the 32-bit DWARF format or the + // 64-bit DWARF format, for lengths and section offsets --- not the + // address size) to format_size. + void set_format_size(size_t format_size) { + assert(format_size == 4 || format_size == 8); + format_size_ = format_size; + } + + // Append a DWARF section offset value, of the appropriate size for this + // compilation unit. + template<typename T> + void SectionOffset(T offset) { + if (format_size_ == 4) + D32(offset); + else + D64(offset); + } + + // Append a DWARF compilation unit header to the section, with the given + // DWARF version, abbrev table offset, and address size. + TestCompilationUnit &Header(int version, const Label &abbrev_offset, + size_t address_size) { + if (format_size_ == 4) { + D32(length_); + } else { + D32(0xffffffff); + D64(length_); + } + post_length_offset_ = Size(); + D16(version); + SectionOffset(abbrev_offset); + D8(address_size); + return *this; + } + + // Mark the end of this header's DIEs. + TestCompilationUnit &Finish() { + length_ = Size() - post_length_offset_; + return *this; + } + + private: + // The DWARF format size for this compilation unit. + size_t format_size_; + + // The offset of the point in the compilation unit header immediately + // after the initial length field. + uint64_t post_length_offset_; + + // The length of the compilation unit, not including the initial length field. + Label length_; +}; + +// A subclass of test_assembler::Section specialized for constructing DWARF +// abbreviation tables. +class TestAbbrevTable: public google_breakpad::test_assembler::Section { + public: + typedef dwarf2reader::DwarfTag DwarfTag; + typedef dwarf2reader::DwarfAttribute DwarfAttribute; + typedef dwarf2reader::DwarfForm DwarfForm; + typedef dwarf2reader::DwarfHasChild DwarfHasChild; + typedef google_breakpad::test_assembler::Label Label; + + // Start a new abbreviation table entry for abbreviation code |code|, + // encoding a DIE whose tag is |tag|, and which has children if and only + // if |has_children| is true. + TestAbbrevTable &Abbrev(int code, DwarfTag tag, DwarfHasChild has_children) { + assert(code != 0); + ULEB128(code); + ULEB128(static_cast<unsigned>(tag)); + D8(static_cast<unsigned>(has_children)); + return *this; + }; + + // Add an attribute to the current abbreviation code whose name is |name| + // and whose form is |form|. + TestAbbrevTable &Attribute(DwarfAttribute name, DwarfForm form) { + ULEB128(static_cast<unsigned>(name)); + ULEB128(static_cast<unsigned>(form)); + return *this; + } + + // Finish the current abbreviation code. + TestAbbrevTable &EndAbbrev() { + ULEB128(0); + ULEB128(0); + return *this; + } + + // Finish the current abbreviation table. + TestAbbrevTable &EndTable() { + ULEB128(0); + return *this; + } +}; + +#endif // COMMON_DWARF_DWARF2READER_TEST_COMMON_H__ diff --git a/3rdParty/Breakpad/src/common/dwarf/elf_reader.cc b/3rdParty/Breakpad/src/common/dwarf/elf_reader.cc new file mode 100644 index 0000000..4135a51 --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf/elf_reader.cc @@ -0,0 +1,1273 @@ +// Copyright 2005 Google Inc. All Rights Reserved. +// Author: chatham@google.com (Andrew Chatham) +// Author: satorux@google.com (Satoru Takabayashi) +// +// Code for reading in ELF files. +// +// For information on the ELF format, see +// http://www.x86.org/ftp/manuals/tools/elf.pdf +// +// I also liked: +// http://www.caldera.com/developers/gabi/1998-04-29/contents.html +// +// A note about types: When dealing with the file format, we use types +// like Elf32_Word, but in the public interfaces we treat all +// addresses as uint64. As a result, we should be able to symbolize +// 64-bit binaries from a 32-bit process (which we don't do, +// anyway). size_t should therefore be avoided, except where required +// by things like mmap(). +// +// Although most of this code can deal with arbitrary ELF files of +// either word size, the public ElfReader interface only examines +// files loaded into the current address space, which must all match +// __WORDSIZE. This code cannot handle ELF files with a non-native +// byte ordering. +// +// TODO(chatham): It would be nice if we could accomplish this task +// without using malloc(), so we could use it as the process is dying. + +#ifndef _GNU_SOURCE +#define _GNU_SOURCE // needed for pread() +#endif + +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <unistd.h> +#include <fcntl.h> +#include <string.h> + +#include <algorithm> +#include <map> +#include <string> +#include <vector> +// TODO(saugustine): Add support for compressed debug. +// Also need to add configure tests for zlib. +//#include "zlib.h" + +#include "third_party/musl/include/elf.h" +#include "elf_reader.h" +#include "common/using_std_string.h" + +// EM_AARCH64 is not defined by elf.h of GRTE v3 on x86. +// TODO(dougkwan): Remove this when v17 is retired. +#if !defined(EM_AARCH64) +#define EM_AARCH64 183 /* ARM AARCH64 */ +#endif + +// Map Linux macros to their Apple equivalents. +#if __APPLE__ +#ifndef __LITTLE_ENDIAN +#define __LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__ +#endif // __LITTLE_ENDIAN +#ifndef __BIG_ENDIAN +#define __BIG_ENDIAN __ORDER_BIG_ENDIAN__ +#endif // __BIG_ENDIAN +#ifndef __BYTE_ORDER +#define __BYTE_ORDER __BYTE_ORDER__ +#endif // __BYTE_ORDER +#endif // __APPLE__ + +// TODO(dthomson): Can be removed once all Java code is using the Google3 +// launcher. We need to avoid processing PLT functions as it causes memory +// fragmentation in malloc, which is fixed in tcmalloc - and if the Google3 +// launcher is used the JVM will then use tcmalloc. b/13735638 +//DEFINE_bool(elfreader_process_dynsyms, true, +// "Activate PLT function processing"); + +using std::vector; + +namespace { + +// The lowest bit of an ARM symbol value is used to indicate a Thumb address. +const int kARMThumbBitOffset = 0; + +// Converts an ARM Thumb symbol value to a true aligned address value. +template <typename T> +T AdjustARMThumbSymbolValue(const T& symbol_table_value) { + return symbol_table_value & ~(1 << kARMThumbBitOffset); +} + +// Names of PLT-related sections. +const char kElfPLTRelSectionName[] = ".rel.plt"; // Use Rel struct. +const char kElfPLTRelaSectionName[] = ".rela.plt"; // Use Rela struct. +const char kElfPLTSectionName[] = ".plt"; +const char kElfDynSymSectionName[] = ".dynsym"; + +const int kX86PLTCodeSize = 0x10; // Size of one x86 PLT function in bytes. +const int kARMPLTCodeSize = 0xc; +const int kAARCH64PLTCodeSize = 0x10; + +const int kX86PLT0Size = 0x10; // Size of the special PLT0 entry. +const int kARMPLT0Size = 0x14; +const int kAARCH64PLT0Size = 0x20; + +// Suffix for PLT functions when it needs to be explicitly identified as such. +const char kPLTFunctionSuffix[] = "@plt"; + +} // namespace + +namespace dwarf2reader { + +template <class ElfArch> class ElfReaderImpl; + +// 32-bit and 64-bit ELF files are processed exactly the same, except +// for various field sizes. Elf32 and Elf64 encompass all of the +// differences between the two formats, and all format-specific code +// in this file is templated on one of them. +class Elf32 { + public: + typedef Elf32_Ehdr Ehdr; + typedef Elf32_Shdr Shdr; + typedef Elf32_Phdr Phdr; + typedef Elf32_Word Word; + typedef Elf32_Sym Sym; + typedef Elf32_Rel Rel; + typedef Elf32_Rela Rela; + + // What should be in the EI_CLASS header. + static const int kElfClass = ELFCLASS32; + + // Given a symbol pointer, return the binding type (eg STB_WEAK). + static char Bind(const Elf32_Sym *sym) { + return ELF32_ST_BIND(sym->st_info); + } + // Given a symbol pointer, return the symbol type (eg STT_FUNC). + static char Type(const Elf32_Sym *sym) { + return ELF32_ST_TYPE(sym->st_info); + } + + // Extract the symbol index from the r_info field of a relocation. + static int r_sym(const Elf32_Word r_info) { + return ELF32_R_SYM(r_info); + } +}; + + +class Elf64 { + public: + typedef Elf64_Ehdr Ehdr; + typedef Elf64_Shdr Shdr; + typedef Elf64_Phdr Phdr; + typedef Elf64_Word Word; + typedef Elf64_Sym Sym; + typedef Elf64_Rel Rel; + typedef Elf64_Rela Rela; + + // What should be in the EI_CLASS header. + static const int kElfClass = ELFCLASS64; + + static char Bind(const Elf64_Sym *sym) { + return ELF64_ST_BIND(sym->st_info); + } + static char Type(const Elf64_Sym *sym) { + return ELF64_ST_TYPE(sym->st_info); + } + static int r_sym(const Elf64_Xword r_info) { + return ELF64_R_SYM(r_info); + } +}; + + +// ElfSectionReader mmaps a section of an ELF file ("section" is ELF +// terminology). The ElfReaderImpl object providing the section header +// must exist for the lifetime of this object. +// +// The motivation for mmaping individual sections of the file is that +// many Google executables are large enough when unstripped that we +// have to worry about running out of virtual address space. +// +// For compressed sections we have no choice but to allocate memory. +template<class ElfArch> +class ElfSectionReader { + public: + ElfSectionReader(const char *name, const string &path, int fd, + const typename ElfArch::Shdr §ion_header) + : contents_aligned_(NULL), + contents_(NULL), + header_(section_header) { + // Back up to the beginning of the page we're interested in. + const size_t additional = header_.sh_offset % getpagesize(); + const size_t offset_aligned = header_.sh_offset - additional; + section_size_ = header_.sh_size; + size_aligned_ = section_size_ + additional; + // If the section has been stripped or is empty, do not attempt + // to process its contents. + if (header_.sh_type == SHT_NOBITS || header_.sh_size == 0) + return; + contents_aligned_ = mmap(NULL, size_aligned_, PROT_READ, MAP_SHARED, + fd, offset_aligned); + // Set where the offset really should begin. + contents_ = reinterpret_cast<char *>(contents_aligned_) + + (header_.sh_offset - offset_aligned); + + // Check for and handle any compressed contents. + //if (strncmp(name, ".zdebug_", strlen(".zdebug_")) == 0) + // DecompressZlibContents(); + // TODO(saugustine): Add support for proposed elf-section flag + // "SHF_COMPRESS". + } + + ~ElfSectionReader() { + if (contents_aligned_ != NULL) + munmap(contents_aligned_, size_aligned_); + else + delete[] contents_; + } + + // Return the section header for this section. + typename ElfArch::Shdr const &header() const { return header_; } + + // Return memory at the given offset within this section. + const char *GetOffset(typename ElfArch::Word bytes) const { + return contents_ + bytes; + } + + const char *contents() const { return contents_; } + size_t section_size() const { return section_size_; } + + private: + // page-aligned file contents + void *contents_aligned_; + // contents as usable by the client. For non-compressed sections, + // pointer within contents_aligned_ to where the section data + // begins; for compressed sections, pointer to the decompressed + // data. + char *contents_; + // size of contents_aligned_ + size_t size_aligned_; + // size of contents. + size_t section_size_; + const typename ElfArch::Shdr header_; +}; + +// An iterator over symbols in a given section. It handles walking +// through the entries in the specified section and mapping symbol +// entries to their names in the appropriate string table (in +// another section). +template<class ElfArch> +class SymbolIterator { + public: + SymbolIterator(ElfReaderImpl<ElfArch> *reader, + typename ElfArch::Word section_type) + : symbol_section_(reader->GetSectionByType(section_type)), + string_section_(NULL), + num_symbols_in_section_(0), + symbol_within_section_(0) { + + // If this section type doesn't exist, leave + // num_symbols_in_section_ as zero, so this iterator is already + // done(). + if (symbol_section_ != NULL) { + num_symbols_in_section_ = symbol_section_->header().sh_size / + symbol_section_->header().sh_entsize; + + // Symbol sections have sh_link set to the section number of + // the string section containing the symbol names. + string_section_ = reader->GetSection(symbol_section_->header().sh_link); + } + } + + // Return true iff we have passed all symbols in this section. + bool done() const { + return symbol_within_section_ >= num_symbols_in_section_; + } + + // Advance to the next symbol in this section. + // REQUIRES: !done() + void Next() { ++symbol_within_section_; } + + // Return a pointer to the current symbol. + // REQUIRES: !done() + const typename ElfArch::Sym *GetSymbol() const { + return reinterpret_cast<const typename ElfArch::Sym*>( + symbol_section_->GetOffset(symbol_within_section_ * + symbol_section_->header().sh_entsize)); + } + + // Return the name of the current symbol, NULL if it has none. + // REQUIRES: !done() + const char *GetSymbolName() const { + int name_offset = GetSymbol()->st_name; + if (name_offset == 0) + return NULL; + return string_section_->GetOffset(name_offset); + } + + int GetCurrentSymbolIndex() const { + return symbol_within_section_; + } + + private: + const ElfSectionReader<ElfArch> *const symbol_section_; + const ElfSectionReader<ElfArch> *string_section_; + int num_symbols_in_section_; + int symbol_within_section_; +}; + + +// Copied from strings/strutil.h. Per chatham, +// this library should not depend on strings. + +static inline bool MyHasSuffixString(const string& str, const string& suffix) { + int len = str.length(); + int suflen = suffix.length(); + return (suflen <= len) && (str.compare(len-suflen, suflen, suffix) == 0); +} + + +// ElfReader loads an ELF binary and can provide information about its +// contents. It is most useful for matching addresses to function +// names. It does not understand debugging formats (eg dwarf2), so it +// can't print line numbers. It takes a path to an elf file and a +// readable file descriptor for that file, which it does not assume +// ownership of. +template<class ElfArch> +class ElfReaderImpl { + public: + explicit ElfReaderImpl(const string &path, int fd) + : path_(path), + fd_(fd), + section_headers_(NULL), + program_headers_(NULL), + opd_section_(NULL), + base_for_text_(0), + plts_supported_(false), + plt_code_size_(0), + plt0_size_(0), + visited_relocation_entries_(false) { + string error; + is_dwp_ = MyHasSuffixString(path, ".dwp"); + ParseHeaders(fd, path); + // Currently we need some extra information for PowerPC64 binaries + // including a way to read the .opd section for function descriptors and a + // way to find the linked base for function symbols. + if (header_.e_machine == EM_PPC64) { + // "opd_section_" must always be checked for NULL before use. + opd_section_ = GetSectionInfoByName(".opd", &opd_info_); + for (unsigned int k = 0u; k < GetNumSections(); ++k) { + const char *name = GetSectionName(section_headers_[k].sh_name); + if (strncmp(name, ".text", strlen(".text")) == 0) { + base_for_text_ = + section_headers_[k].sh_addr - section_headers_[k].sh_offset; + break; + } + } + } + // Turn on PLTs. + if (header_.e_machine == EM_386 || header_.e_machine == EM_X86_64) { + plt_code_size_ = kX86PLTCodeSize; + plt0_size_ = kX86PLT0Size; + plts_supported_ = true; + } else if (header_.e_machine == EM_ARM) { + plt_code_size_ = kARMPLTCodeSize; + plt0_size_ = kARMPLT0Size; + plts_supported_ = true; + } else if (header_.e_machine == EM_AARCH64) { + plt_code_size_ = kAARCH64PLTCodeSize; + plt0_size_ = kAARCH64PLT0Size; + plts_supported_ = true; + } + } + + ~ElfReaderImpl() { + for (unsigned int i = 0u; i < sections_.size(); ++i) + delete sections_[i]; + delete [] section_headers_; + delete [] program_headers_; + } + + // Examine the headers of the file and return whether the file looks + // like an ELF file for this architecture. Takes an already-open + // file descriptor for the candidate file, reading in the prologue + // to see if the ELF file appears to match the current + // architecture. If error is non-NULL, it will be set with a reason + // in case of failure. + static bool IsArchElfFile(int fd, string *error) { + unsigned char header[EI_NIDENT]; + if (pread(fd, header, sizeof(header), 0) != sizeof(header)) { + if (error != NULL) *error = "Could not read header"; + return false; + } + + if (memcmp(header, ELFMAG, SELFMAG) != 0) { + if (error != NULL) *error = "Missing ELF magic"; + return false; + } + + if (header[EI_CLASS] != ElfArch::kElfClass) { + if (error != NULL) *error = "Different word size"; + return false; + } + + int endian = 0; + if (header[EI_DATA] == ELFDATA2LSB) + endian = __LITTLE_ENDIAN; + else if (header[EI_DATA] == ELFDATA2MSB) + endian = __BIG_ENDIAN; + if (endian != __BYTE_ORDER) { + if (error != NULL) *error = "Different byte order"; + return false; + } + + return true; + } + + // Return true if we can use this symbol in Address-to-Symbol map. + bool CanUseSymbol(const char *name, const typename ElfArch::Sym *sym) { + // For now we only save FUNC and NOTYPE symbols. For now we just + // care about functions, but some functions written in assembler + // don't have a proper ELF type attached to them, so we store + // NOTYPE symbols as well. The remaining significant type is + // OBJECT (eg global variables), which represent about 25% of + // the symbols in a typical google3 binary. + if (ElfArch::Type(sym) != STT_FUNC && + ElfArch::Type(sym) != STT_NOTYPE) { + return false; + } + + // Target specific filtering. + switch (header_.e_machine) { + case EM_AARCH64: + case EM_ARM: + // Filter out '$x' special local symbols used by tools + return name[0] != '$' || ElfArch::Bind(sym) != STB_LOCAL; + case EM_X86_64: + // Filter out read-only constants like .LC123. + return name[0] != '.' || ElfArch::Bind(sym) != STB_LOCAL; + default: + return true; + } + } + + // Iterate over the symbols in a section, either SHT_DYNSYM or + // SHT_SYMTAB. Add all symbols to the given SymbolMap. + /* + void GetSymbolPositions(SymbolMap *symbols, + typename ElfArch::Word section_type, + uint64 mem_offset, + uint64 file_offset) { + // This map is used to filter out "nested" functions. + // See comment below. + AddrToSymMap addr_to_sym_map; + for (SymbolIterator<ElfArch> it(this, section_type); + !it.done(); it.Next()) { + const char *name = it.GetSymbolName(); + if (name == NULL) + continue; + const typename ElfArch::Sym *sym = it.GetSymbol(); + if (CanUseSymbol(name, sym)) { + const int sec = sym->st_shndx; + + // We don't support special section indices. The most common + // is SHN_ABS, for absolute symbols used deep in the bowels of + // glibc. Also ignore any undefined symbols. + if (sec == SHN_UNDEF || + (sec >= SHN_LORESERVE && sec <= SHN_HIRESERVE)) { + continue; + } + + const typename ElfArch::Shdr& hdr = section_headers_[sec]; + + // Adjust for difference between where we expected to mmap + // this section, and where it was actually mmapped. + const int64 expected_base = hdr.sh_addr - hdr.sh_offset; + const int64 real_base = mem_offset - file_offset; + const int64 adjust = real_base - expected_base; + + uint64 start = sym->st_value + adjust; + + // Adjust function symbols for PowerPC64 by dereferencing and adjusting + // the function descriptor to get the function address. + if (header_.e_machine == EM_PPC64 && ElfArch::Type(sym) == STT_FUNC) { + const uint64 opd_addr = + AdjustPPC64FunctionDescriptorSymbolValue(sym->st_value); + // Only adjust the returned value if the function address was found. + if (opd_addr != sym->st_value) { + const int64 adjust_function_symbols = + real_base - base_for_text_; + start = opd_addr + adjust_function_symbols; + } + } + + addr_to_sym_map.push_back(std::make_pair(start, sym)); + } + } + std::sort(addr_to_sym_map.begin(), addr_to_sym_map.end(), &AddrToSymSorter); + addr_to_sym_map.erase(std::unique(addr_to_sym_map.begin(), + addr_to_sym_map.end(), &AddrToSymEquals), + addr_to_sym_map.end()); + + // Squeeze out any "nested functions". + // Nested functions are not allowed in C, but libc plays tricks. + // + // For example, here is disassembly of /lib64/tls/libc-2.3.5.so: + // 0x00000000000aa380 <read+0>: cmpl $0x0,0x2781b9(%rip) + // 0x00000000000aa387 <read+7>: jne 0xaa39b <read+27> + // 0x00000000000aa389 <__read_nocancel+0>: mov $0x0,%rax + // 0x00000000000aa390 <__read_nocancel+7>: syscall + // 0x00000000000aa392 <__read_nocancel+9>: cmp $0xfffffffffffff001,%rax + // 0x00000000000aa398 <__read_nocancel+15>: jae 0xaa3ef <read+111> + // 0x00000000000aa39a <__read_nocancel+17>: retq + // 0x00000000000aa39b <read+27>: sub $0x28,%rsp + // 0x00000000000aa39f <read+31>: mov %rdi,0x8(%rsp) + // ... + // Without removing __read_nocancel, symbolizer will return NULL + // given e.g. 0xaa39f (because the lower bound is __read_nocancel, + // but 0xaa39f is beyond its end. + if (addr_to_sym_map.empty()) { + return; + } + const ElfSectionReader<ElfArch> *const symbol_section = + this->GetSectionByType(section_type); + const ElfSectionReader<ElfArch> *const string_section = + this->GetSection(symbol_section->header().sh_link); + + typename AddrToSymMap::iterator curr = addr_to_sym_map.begin(); + // Always insert the first symbol. + symbols->AddSymbol(string_section->GetOffset(curr->second->st_name), + curr->first, curr->second->st_size); + typename AddrToSymMap::iterator prev = curr++; + for (; curr != addr_to_sym_map.end(); ++curr) { + const uint64 prev_addr = prev->first; + const uint64 curr_addr = curr->first; + const typename ElfArch::Sym *const prev_sym = prev->second; + const typename ElfArch::Sym *const curr_sym = curr->second; + if (prev_addr + prev_sym->st_size <= curr_addr || + // The next condition is true if two symbols overlap like this: + // + // Previous symbol |----------------------------| + // Current symbol |-------------------------------| + // + // These symbols are not found in google3 codebase, but in + // jdk1.6.0_01_gg1/jre/lib/i386/server/libjvm.so. + // + // 0619e040 00000046 t CardTableModRefBS::write_region_work() + // 0619e070 00000046 t CardTableModRefBS::write_ref_array_work() + // + // We allow overlapped symbols rather than ignore these. + // Due to the way SymbolMap::GetSymbolAtPosition() works, + // lookup for any address in [curr_addr, curr_addr + its size) + // (e.g. 0619e071) will produce the current symbol, + // which is the desired outcome. + prev_addr + prev_sym->st_size < curr_addr + curr_sym->st_size) { + const char *name = string_section->GetOffset(curr_sym->st_name); + symbols->AddSymbol(name, curr_addr, curr_sym->st_size); + prev = curr; + } else { + // Current symbol is "nested" inside previous one like this: + // + // Previous symbol |----------------------------| + // Current symbol |---------------------| + // + // This happens within glibc, e.g. __read_nocancel is nested + // "inside" __read. Ignore "inner" symbol. + //DCHECK_LE(curr_addr + curr_sym->st_size, + // prev_addr + prev_sym->st_size); + ; + } + } + } +*/ + + void VisitSymbols(typename ElfArch::Word section_type, + ElfReader::SymbolSink *sink) { + VisitSymbols(section_type, sink, -1, -1, false); + } + + void VisitSymbols(typename ElfArch::Word section_type, + ElfReader::SymbolSink *sink, + int symbol_binding, + int symbol_type, + bool get_raw_symbol_values) { + for (SymbolIterator<ElfArch> it(this, section_type); + !it.done(); it.Next()) { + const char *name = it.GetSymbolName(); + if (!name) continue; + const typename ElfArch::Sym *sym = it.GetSymbol(); + if ((symbol_binding < 0 || ElfArch::Bind(sym) == symbol_binding) && + (symbol_type < 0 || ElfArch::Type(sym) == symbol_type)) { + typename ElfArch::Sym symbol = *sym; + // Add a PLT symbol in addition to the main undefined symbol. + // Only do this for SHT_DYNSYM, because PLT symbols are dynamic. + int symbol_index = it.GetCurrentSymbolIndex(); + // TODO(dthomson): Can be removed once all Java code is using the + // Google3 launcher. + if (section_type == SHT_DYNSYM && + static_cast<unsigned int>(symbol_index) < symbols_plt_offsets_.size() && + symbols_plt_offsets_[symbol_index] != 0) { + string plt_name = string(name) + kPLTFunctionSuffix; + if (plt_function_names_[symbol_index].empty()) { + plt_function_names_[symbol_index] = plt_name; + } else if (plt_function_names_[symbol_index] != plt_name) { + ; + } + sink->AddSymbol(plt_function_names_[symbol_index].c_str(), + symbols_plt_offsets_[it.GetCurrentSymbolIndex()], + plt_code_size_); + } + if (!get_raw_symbol_values) + AdjustSymbolValue(&symbol); + sink->AddSymbol(name, symbol.st_value, symbol.st_size); + } + } + } + + void VisitRelocationEntries() { + if (visited_relocation_entries_) { + return; + } + visited_relocation_entries_ = true; + + if (!plts_supported_) { + return; + } + // First determine if PLTs exist. If not, then there is nothing to do. + ElfReader::SectionInfo plt_section_info; + const char* plt_section = + GetSectionInfoByName(kElfPLTSectionName, &plt_section_info); + if (!plt_section) { + return; + } + if (plt_section_info.size == 0) { + return; + } + + // The PLTs could be referenced by either a Rel or Rela (Rel with Addend) + // section. + ElfReader::SectionInfo rel_section_info; + ElfReader::SectionInfo rela_section_info; + const char* rel_section = + GetSectionInfoByName(kElfPLTRelSectionName, &rel_section_info); + const char* rela_section = + GetSectionInfoByName(kElfPLTRelaSectionName, &rela_section_info); + + const typename ElfArch::Rel* rel = + reinterpret_cast<const typename ElfArch::Rel*>(rel_section); + const typename ElfArch::Rela* rela = + reinterpret_cast<const typename ElfArch::Rela*>(rela_section); + + if (!rel_section && !rela_section) { + return; + } + + // Use either Rel or Rela section, depending on which one exists. + size_t section_size = rel_section ? rel_section_info.size + : rela_section_info.size; + size_t entry_size = rel_section ? sizeof(typename ElfArch::Rel) + : sizeof(typename ElfArch::Rela); + + // Determine the number of entries in the dynamic symbol table. + ElfReader::SectionInfo dynsym_section_info; + const char* dynsym_section = + GetSectionInfoByName(kElfDynSymSectionName, &dynsym_section_info); + // The dynsym section might not exist, or it might be empty. In either case + // there is nothing to be done so return. + if (!dynsym_section || dynsym_section_info.size == 0) { + return; + } + size_t num_dynamic_symbols = + dynsym_section_info.size / dynsym_section_info.entsize; + symbols_plt_offsets_.resize(num_dynamic_symbols, 0); + + // TODO(dthomson): Can be removed once all Java code is using the + // Google3 launcher. + // Make storage room for PLT function name strings. + plt_function_names_.resize(num_dynamic_symbols); + + for (size_t i = 0; i < section_size / entry_size; ++i) { + // Determine symbol index from the |r_info| field. + int sym_index = ElfArch::r_sym(rel_section ? rel[i].r_info + : rela[i].r_info); + if (static_cast<unsigned int>(sym_index) >= symbols_plt_offsets_.size()) { + continue; + } + symbols_plt_offsets_[sym_index] = + plt_section_info.addr + plt0_size_ + i * plt_code_size_; + } + } + + // Return an ElfSectionReader for the first section of the given + // type by iterating through all section headers. Returns NULL if + // the section type is not found. + const ElfSectionReader<ElfArch> *GetSectionByType( + typename ElfArch::Word section_type) { + for (unsigned int k = 0u; k < GetNumSections(); ++k) { + if (section_headers_[k].sh_type == section_type) { + return GetSection(k); + } + } + return NULL; + } + + // Return the name of section "shndx". Returns NULL if the section + // is not found. + const char *GetSectionNameByIndex(int shndx) { + return GetSectionName(section_headers_[shndx].sh_name); + } + + // Return a pointer to section "shndx", and store the size in + // "size". Returns NULL if the section is not found. + const char *GetSectionContentsByIndex(int shndx, size_t *size) { + const ElfSectionReader<ElfArch> *section = GetSection(shndx); + if (section != NULL) { + *size = section->section_size(); + return section->contents(); + } + return NULL; + } + + // Return a pointer to the first section of the given name by + // iterating through all section headers, and store the size in + // "size". Returns NULL if the section name is not found. + const char *GetSectionContentsByName(const string §ion_name, + size_t *size) { + for (unsigned int k = 0u; k < GetNumSections(); ++k) { + // When searching for sections in a .dwp file, the sections + // we're looking for will always be at the end of the section + // table, so reverse the direction of iteration. + int shndx = is_dwp_ ? GetNumSections() - k - 1 : k; + const char *name = GetSectionName(section_headers_[shndx].sh_name); + if (name != NULL && ElfReader::SectionNamesMatch(section_name, name)) { + const ElfSectionReader<ElfArch> *section = GetSection(shndx); + if (section == NULL) { + return NULL; + } else { + *size = section->section_size(); + return section->contents(); + } + } + } + return NULL; + } + + // This is like GetSectionContentsByName() but it returns a lot of extra + // information about the section. + const char *GetSectionInfoByName(const string §ion_name, + ElfReader::SectionInfo *info) { + for (unsigned int k = 0u; k < GetNumSections(); ++k) { + // When searching for sections in a .dwp file, the sections + // we're looking for will always be at the end of the section + // table, so reverse the direction of iteration. + int shndx = is_dwp_ ? GetNumSections() - k - 1 : k; + const char *name = GetSectionName(section_headers_[shndx].sh_name); + if (name != NULL && ElfReader::SectionNamesMatch(section_name, name)) { + const ElfSectionReader<ElfArch> *section = GetSection(shndx); + if (section == NULL) { + return NULL; + } else { + info->type = section->header().sh_type; + info->flags = section->header().sh_flags; + info->addr = section->header().sh_addr; + info->offset = section->header().sh_offset; + info->size = section->header().sh_size; + info->link = section->header().sh_link; + info->info = section->header().sh_info; + info->addralign = section->header().sh_addralign; + info->entsize = section->header().sh_entsize; + return section->contents(); + } + } + } + return NULL; + } + + // p_vaddr of the first PT_LOAD segment (if any), or 0 if no PT_LOAD + // segments are present. This is the address an ELF image was linked + // (by static linker) to be loaded at. Usually (but not always) 0 for + // shared libraries and position-independent executables. + uint64 VaddrOfFirstLoadSegment() const { + // Relocatable objects (of type ET_REL) do not have LOAD segments. + if (header_.e_type == ET_REL) { + return 0; + } + for (int i = 0; i < GetNumProgramHeaders(); ++i) { + if (program_headers_[i].p_type == PT_LOAD) { + return program_headers_[i].p_vaddr; + } + } + return 0; + } + + // According to the LSB ("ELF special sections"), sections with debug + // info are prefixed by ".debug". The names are not specified, but they + // look like ".debug_line", ".debug_info", etc. + bool HasDebugSections() { + // Debug sections are likely to be near the end, so reverse the + // direction of iteration. + for (int k = GetNumSections() - 1; k >= 0; --k) { + const char *name = GetSectionName(section_headers_[k].sh_name); + if (strncmp(name, ".debug", strlen(".debug")) == 0) return true; + if (strncmp(name, ".zdebug", strlen(".zdebug")) == 0) return true; + } + return false; + } + + bool IsDynamicSharedObject() const { + return header_.e_type == ET_DYN; + } + + // Return the number of sections. + uint64_t GetNumSections() const { + if (HasManySections()) + return first_section_header_.sh_size; + return header_.e_shnum; + } + + private: + typedef vector<pair<uint64, const typename ElfArch::Sym *> > AddrToSymMap; + + static bool AddrToSymSorter(const typename AddrToSymMap::value_type& lhs, + const typename AddrToSymMap::value_type& rhs) { + return lhs.first < rhs.first; + } + + static bool AddrToSymEquals(const typename AddrToSymMap::value_type& lhs, + const typename AddrToSymMap::value_type& rhs) { + return lhs.first == rhs.first; + } + + // Does this ELF file have too many sections to fit in the program header? + bool HasManySections() const { + return header_.e_shnum == SHN_UNDEF; + } + + // Return the number of program headers. + int GetNumProgramHeaders() const { + if (HasManySections() && header_.e_phnum == 0xffff && + first_section_header_.sh_info != 0) + return first_section_header_.sh_info; + return header_.e_phnum; + } + + // Return the index of the string table. + int GetStringTableIndex() const { + if (HasManySections()) { + if (header_.e_shstrndx == 0xffff) + return first_section_header_.sh_link; + else if (header_.e_shstrndx >= GetNumSections()) + return 0; + } + return header_.e_shstrndx; + } + + // Given an offset into the section header string table, return the + // section name. + const char *GetSectionName(typename ElfArch::Word sh_name) { + const ElfSectionReader<ElfArch> *shstrtab = + GetSection(GetStringTableIndex()); + if (shstrtab != NULL) { + return shstrtab->GetOffset(sh_name); + } + return NULL; + } + + // Return an ElfSectionReader for the given section. The reader will + // be freed when this object is destroyed. + const ElfSectionReader<ElfArch> *GetSection(int num) { + const char *name; + // Hard-coding the name for the section-name string table prevents + // infinite recursion. + if (num == GetStringTableIndex()) + name = ".shstrtab"; + else + name = GetSectionNameByIndex(num); + ElfSectionReader<ElfArch> *& reader = sections_[num]; + if (reader == NULL) + reader = new ElfSectionReader<ElfArch>(name, path_, fd_, + section_headers_[num]); + return reader; + } + + // Parse out the overall header information from the file and assert + // that it looks sane. This contains information like the magic + // number and target architecture. + bool ParseHeaders(int fd, const string &path) { + // Read in the global ELF header. + if (pread(fd, &header_, sizeof(header_), 0) != sizeof(header_)) { + return false; + } + + // Must be an executable, dynamic shared object or relocatable object + if (header_.e_type != ET_EXEC && + header_.e_type != ET_DYN && + header_.e_type != ET_REL) { + return false; + } + // Need a section header. + if (header_.e_shoff == 0) { + return false; + } + + if (header_.e_shnum == SHN_UNDEF) { + // The number of sections in the program header is only a 16-bit value. In + // the event of overflow (greater than SHN_LORESERVE sections), e_shnum + // will read SHN_UNDEF and the true number of section header table entries + // is found in the sh_size field of the first section header. + // See: http://www.sco.com/developers/gabi/2003-12-17/ch4.sheader.html + if (pread(fd, &first_section_header_, sizeof(first_section_header_), + header_.e_shoff) != sizeof(first_section_header_)) { + return false; + } + } + + // Dynamically allocate enough space to store the section headers + // and read them out of the file. + const int section_headers_size = + GetNumSections() * sizeof(*section_headers_); + section_headers_ = new typename ElfArch::Shdr[section_headers_size]; + if (pread(fd, section_headers_, section_headers_size, header_.e_shoff) != + section_headers_size) { + return false; + } + + // Dynamically allocate enough space to store the program headers + // and read them out of the file. + //const int program_headers_size = + // GetNumProgramHeaders() * sizeof(*program_headers_); + program_headers_ = new typename ElfArch::Phdr[GetNumProgramHeaders()]; + + // Presize the sections array for efficiency. + sections_.resize(GetNumSections(), NULL); + return true; + } + + // Given the "value" of a function descriptor return the address of the + // function (i.e. the dereferenced value). Otherwise return "value". + uint64 AdjustPPC64FunctionDescriptorSymbolValue(uint64 value) { + if (opd_section_ != NULL && + opd_info_.addr <= value && + value < opd_info_.addr + opd_info_.size) { + uint64 offset = value - opd_info_.addr; + return (*reinterpret_cast<const uint64*>(opd_section_ + offset)); + } + return value; + } + + void AdjustSymbolValue(typename ElfArch::Sym* sym) { + switch (header_.e_machine) { + case EM_ARM: + // For ARM architecture, if the LSB of the function symbol offset is set, + // it indicates a Thumb function. This bit should not be taken literally. + // Clear it. + if (ElfArch::Type(sym) == STT_FUNC) + sym->st_value = AdjustARMThumbSymbolValue(sym->st_value); + break; + case EM_386: + // No adjustment needed for Intel x86 architecture. However, explicitly + // define this case as we use it quite often. + break; + case EM_PPC64: + // PowerPC64 currently has function descriptors as part of the ABI. + // Function symbols need to be adjusted accordingly. + if (ElfArch::Type(sym) == STT_FUNC) + sym->st_value = AdjustPPC64FunctionDescriptorSymbolValue(sym->st_value); + break; + default: + break; + } + } + + friend class SymbolIterator<ElfArch>; + + // The file we're reading. + const string path_; + // Open file descriptor for path_. Not owned by this object. + const int fd_; + + // The global header of the ELF file. + typename ElfArch::Ehdr header_; + + // The header of the first section. This may be used to supplement the ELF + // file header. + typename ElfArch::Shdr first_section_header_; + + // Array of GetNumSections() section headers, allocated when we read + // in the global header. + typename ElfArch::Shdr *section_headers_; + + // Array of GetNumProgramHeaders() program headers, allocated when we read + // in the global header. + typename ElfArch::Phdr *program_headers_; + + // An array of pointers to ElfSectionReaders. Sections are + // mmaped as they're needed and not released until this object is + // destroyed. + vector<ElfSectionReader<ElfArch>*> sections_; + + // For PowerPC64 we need to keep track of function descriptors when looking up + // values for funtion symbols values. Function descriptors are kept in the + // .opd section and are dereferenced to find the function address. + ElfReader::SectionInfo opd_info_; + const char *opd_section_; // Must be checked for NULL before use. + int64 base_for_text_; + + // Read PLT-related sections for the current architecture. + bool plts_supported_; + // Code size of each PLT function for the current architecture. + size_t plt_code_size_; + // Size of the special first entry in the .plt section that calls the runtime + // loader resolution routine, and that all other entries jump to when doing + // lazy symbol binding. + size_t plt0_size_; + + // Maps a dynamic symbol index to a PLT offset. + // The vector entry index is the dynamic symbol index. + std::vector<uint64> symbols_plt_offsets_; + + // Container for PLT function name strings. These strings are passed by + // reference to SymbolSink::AddSymbol() so they need to be stored somewhere. + std::vector<string> plt_function_names_; + + bool visited_relocation_entries_; + + // True if this is a .dwp file. + bool is_dwp_; +}; + +ElfReader::ElfReader(const string &path) + : path_(path), fd_(-1), impl32_(NULL), impl64_(NULL) { + // linux 2.6.XX kernel can show deleted files like this: + // /var/run/nscd/dbYLJYaE (deleted) + // and the kernel-supplied vdso and vsyscall mappings like this: + // [vdso] + // [vsyscall] + if (MyHasSuffixString(path, " (deleted)")) + return; + if (path == "[vdso]") + return; + if (path == "[vsyscall]") + return; + + fd_ = open(path.c_str(), O_RDONLY); +} + +ElfReader::~ElfReader() { + if (fd_ != -1) + close(fd_); + if (impl32_ != NULL) + delete impl32_; + if (impl64_ != NULL) + delete impl64_; +} + + +// The only word-size specific part of this file is IsNativeElfFile(). +#if __WORDSIZE == 32 +#define NATIVE_ELF_ARCH Elf32 +#elif __WORDSIZE == 64 +#define NATIVE_ELF_ARCH Elf64 +#else +#error "Invalid word size" +#endif + +template <typename ElfArch> +static bool IsElfFile(const int fd, const string &path) { + if (fd < 0) + return false; + if (!ElfReaderImpl<ElfArch>::IsArchElfFile(fd, NULL)) { + // No error message here. IsElfFile gets called many times. + return false; + } + return true; +} + +bool ElfReader::IsNativeElfFile() const { + return IsElfFile<NATIVE_ELF_ARCH>(fd_, path_); +} + +bool ElfReader::IsElf32File() const { + return IsElfFile<Elf32>(fd_, path_); +} + +bool ElfReader::IsElf64File() const { + return IsElfFile<Elf64>(fd_, path_); +} + +/* +void ElfReader::AddSymbols(SymbolMap *symbols, + uint64 mem_offset, uint64 file_offset, + uint64 length) { + if (fd_ < 0) + return; + // TODO(chatham): Actually use the information about file offset and + // the length of the mapped section. On some machines the data + // section gets mapped as executable, and we'll end up reading the + // file twice and getting some of the offsets wrong. + if (IsElf32File()) { + GetImpl32()->GetSymbolPositions(symbols, SHT_SYMTAB, + mem_offset, file_offset); + GetImpl32()->GetSymbolPositions(symbols, SHT_DYNSYM, + mem_offset, file_offset); + } else if (IsElf64File()) { + GetImpl64()->GetSymbolPositions(symbols, SHT_SYMTAB, + mem_offset, file_offset); + GetImpl64()->GetSymbolPositions(symbols, SHT_DYNSYM, + mem_offset, file_offset); + } +} +*/ + +void ElfReader::VisitSymbols(ElfReader::SymbolSink *sink) { + VisitSymbols(sink, -1, -1); +} + +void ElfReader::VisitSymbols(ElfReader::SymbolSink *sink, + int symbol_binding, + int symbol_type) { + VisitSymbols(sink, symbol_binding, symbol_type, false); +} + +void ElfReader::VisitSymbols(ElfReader::SymbolSink *sink, + int symbol_binding, + int symbol_type, + bool get_raw_symbol_values) { + if (IsElf32File()) { + GetImpl32()->VisitRelocationEntries(); + GetImpl32()->VisitSymbols(SHT_SYMTAB, sink, symbol_binding, symbol_type, + get_raw_symbol_values); + GetImpl32()->VisitSymbols(SHT_DYNSYM, sink, symbol_binding, symbol_type, + get_raw_symbol_values); + } else if (IsElf64File()) { + GetImpl64()->VisitRelocationEntries(); + GetImpl64()->VisitSymbols(SHT_SYMTAB, sink, symbol_binding, symbol_type, + get_raw_symbol_values); + GetImpl64()->VisitSymbols(SHT_DYNSYM, sink, symbol_binding, symbol_type, + get_raw_symbol_values); + } +} + +uint64 ElfReader::VaddrOfFirstLoadSegment() { + if (IsElf32File()) { + return GetImpl32()->VaddrOfFirstLoadSegment(); + } else if (IsElf64File()) { + return GetImpl64()->VaddrOfFirstLoadSegment(); + } else { + return 0; + } +} + +const char *ElfReader::GetSectionName(int shndx) { + if (shndx < 0 || static_cast<unsigned int>(shndx) >= GetNumSections()) return NULL; + if (IsElf32File()) { + return GetImpl32()->GetSectionNameByIndex(shndx); + } else if (IsElf64File()) { + return GetImpl64()->GetSectionNameByIndex(shndx); + } else { + return NULL; + } +} + +uint64 ElfReader::GetNumSections() { + if (IsElf32File()) { + return GetImpl32()->GetNumSections(); + } else if (IsElf64File()) { + return GetImpl64()->GetNumSections(); + } else { + return 0; + } +} + +const char *ElfReader::GetSectionByIndex(int shndx, size_t *size) { + if (IsElf32File()) { + return GetImpl32()->GetSectionContentsByIndex(shndx, size); + } else if (IsElf64File()) { + return GetImpl64()->GetSectionContentsByIndex(shndx, size); + } else { + return NULL; + } +} + +const char *ElfReader::GetSectionByName(const string §ion_name, + size_t *size) { + if (IsElf32File()) { + return GetImpl32()->GetSectionContentsByName(section_name, size); + } else if (IsElf64File()) { + return GetImpl64()->GetSectionContentsByName(section_name, size); + } else { + return NULL; + } +} + +const char *ElfReader::GetSectionInfoByName(const string §ion_name, + SectionInfo *info) { + if (IsElf32File()) { + return GetImpl32()->GetSectionInfoByName(section_name, info); + } else if (IsElf64File()) { + return GetImpl64()->GetSectionInfoByName(section_name, info); + } else { + return NULL; + } +} + +bool ElfReader::SectionNamesMatch(const string &name, const string &sh_name) { + if ((name.find(".debug_", 0) == 0) && (sh_name.find(".zdebug_", 0) == 0)) { + const string name_suffix(name, strlen(".debug_")); + const string sh_name_suffix(sh_name, strlen(".zdebug_")); + return name_suffix == sh_name_suffix; + } + return name == sh_name; +} + +bool ElfReader::IsDynamicSharedObject() { + if (IsElf32File()) { + return GetImpl32()->IsDynamicSharedObject(); + } else if (IsElf64File()) { + return GetImpl64()->IsDynamicSharedObject(); + } else { + return false; + } +} + +ElfReaderImpl<Elf32> *ElfReader::GetImpl32() { + if (impl32_ == NULL) { + impl32_ = new ElfReaderImpl<Elf32>(path_, fd_); + } + return impl32_; +} + +ElfReaderImpl<Elf64> *ElfReader::GetImpl64() { + if (impl64_ == NULL) { + impl64_ = new ElfReaderImpl<Elf64>(path_, fd_); + } + return impl64_; +} + +// Return true if file is an ELF binary of ElfArch, with unstripped +// debug info (debug_only=true) or symbol table (debug_only=false). +// Otherwise, return false. +template <typename ElfArch> +static bool IsNonStrippedELFBinaryImpl(const string &path, const int fd, + bool debug_only) { + if (!ElfReaderImpl<ElfArch>::IsArchElfFile(fd, NULL)) return false; + ElfReaderImpl<ElfArch> elf_reader(path, fd); + return debug_only ? + elf_reader.HasDebugSections() + : (elf_reader.GetSectionByType(SHT_SYMTAB) != NULL); +} + +// Helper for the IsNon[Debug]StrippedELFBinary functions. +static bool IsNonStrippedELFBinaryHelper(const string &path, + bool debug_only) { + const int fd = open(path.c_str(), O_RDONLY); + if (fd == -1) { + return false; + } + + if (IsNonStrippedELFBinaryImpl<Elf32>(path, fd, debug_only) || + IsNonStrippedELFBinaryImpl<Elf64>(path, fd, debug_only)) { + close(fd); + return true; + } + close(fd); + return false; +} + +bool ElfReader::IsNonStrippedELFBinary(const string &path) { + return IsNonStrippedELFBinaryHelper(path, false); +} + +bool ElfReader::IsNonDebugStrippedELFBinary(const string &path) { + return IsNonStrippedELFBinaryHelper(path, true); +} +} // namespace dwarf2reader diff --git a/3rdParty/Breakpad/src/common/dwarf/elf_reader.h b/3rdParty/Breakpad/src/common/dwarf/elf_reader.h new file mode 100644 index 0000000..b1bb67a --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf/elf_reader.h @@ -0,0 +1,166 @@ +// Copyright 2005 Google Inc. All Rights Reserved. +// Author: chatham@google.com (Andrew Chatham) +// Author: satorux@google.com (Satoru Takabayashi) +// +// ElfReader handles reading in ELF. It can extract symbols from the +// current process, which may be used to symbolize stack traces +// without having to make a potentially dangerous call to fork(). +// +// ElfReader dynamically allocates memory, so it is not appropriate to +// use once the address space might be corrupted, such as during +// process death. +// +// ElfReader supports both 32-bit and 64-bit ELF binaries. + +#ifndef COMMON_DWARF_ELF_READER_H__ +#define COMMON_DWARF_ELF_READER_H__ + +#include <string> +#include <vector> + +#include "common/dwarf/types.h" +#include "common/using_std_string.h" + +using std::vector; +using std::pair; + +namespace dwarf2reader { + +class SymbolMap; +class Elf32; +class Elf64; +template<typename ElfArch> +class ElfReaderImpl; + +class ElfReader { + public: + explicit ElfReader(const string &path); + ~ElfReader(); + + // Parse the ELF prologue of this file and return whether it was + // successfully parsed and matches the word size and byte order of + // the current process. + bool IsNativeElfFile() const; + + // Similar to IsNativeElfFile but checks if it's a 32-bit ELF file. + bool IsElf32File() const; + + // Similar to IsNativeElfFile but checks if it's a 64-bit ELF file. + bool IsElf64File() const; + + // Checks if it's an ELF file of type ET_DYN (shared object file). + bool IsDynamicSharedObject(); + + // Add symbols in the given ELF file into the provided SymbolMap, + // assuming that the file has been loaded into the specified + // offset. + // + // The remaining arguments are typically taken from a + // ProcMapsIterator (base/sysinfo.h) and describe which portions of + // the ELF file are mapped into which parts of memory: + // + // mem_offset - position at which the segment is mapped into memory + // file_offset - offset in the file where the mapping begins + // length - length of the mapped segment + void AddSymbols(SymbolMap *symbols, + uint64 mem_offset, uint64 file_offset, + uint64 length); + + class SymbolSink { + public: + virtual ~SymbolSink() {} + virtual void AddSymbol(const char *name, uint64 address, uint64 size) = 0; + }; + + // Like AddSymbols above, but with no address correction. + // Processes any SHT_SYMTAB section, followed by any SHT_DYNSYM section. + void VisitSymbols(SymbolSink *sink); + + // Like VisitSymbols above, but for a specific symbol binding/type. + // A negative value for the binding and type parameters means any + // binding or type. + void VisitSymbols(SymbolSink *sink, int symbol_binding, int symbol_type); + + // Like VisitSymbols above but can optionally export raw symbol values instead + // of adjusted ones. + void VisitSymbols(SymbolSink *sink, int symbol_binding, int symbol_type, + bool get_raw_symbol_values); + + // p_vaddr of the first PT_LOAD segment (if any), or 0 if no PT_LOAD + // segments are present. This is the address an ELF image was linked + // (by static linker) to be loaded at. Usually (but not always) 0 for + // shared libraries and position-independent executables. + uint64 VaddrOfFirstLoadSegment(); + + // Return the name of section "shndx". Returns NULL if the section + // is not found. + const char *GetSectionName(int shndx); + + // Return the number of sections in the given ELF file. + uint64 GetNumSections(); + + // Get section "shndx" from the given ELF file. On success, return + // the pointer to the section and store the size in "size". + // On error, return NULL. The returned section data is only valid + // until the ElfReader gets destroyed. + const char *GetSectionByIndex(int shndx, size_t *size); + + // Get section with "section_name" (ex. ".text", ".symtab") in the + // given ELF file. On success, return the pointer to the section + // and store the size in "size". On error, return NULL. The + // returned section data is only valid until the ElfReader gets + // destroyed. + const char *GetSectionByName(const string §ion_name, size_t *size); + + // This is like GetSectionByName() but it returns a lot of extra information + // about the section. The SectionInfo structure is almost identical to + // the typedef struct Elf64_Shdr defined in <elf.h>, but is redefined + // here so that the many short macro names in <elf.h> don't have to be + // added to our already cluttered namespace. + struct SectionInfo { + uint32 type; // Section type (SHT_xxx constant from elf.h). + uint64 flags; // Section flags (SHF_xxx constants from elf.h). + uint64 addr; // Section virtual address at execution. + uint64 offset; // Section file offset. + uint64 size; // Section size in bytes. + uint32 link; // Link to another section. + uint32 info; // Additional section information. + uint64 addralign; // Section alignment. + uint64 entsize; // Entry size if section holds a table. + }; + const char *GetSectionInfoByName(const string §ion_name, + SectionInfo *info); + + // Check if "path" is an ELF binary that has not been stripped of symbol + // tables. This function supports both 32-bit and 64-bit ELF binaries. + static bool IsNonStrippedELFBinary(const string &path); + + // Check if "path" is an ELF binary that has not been stripped of debug + // info. Unlike IsNonStrippedELFBinary, this function will return + // false for binaries passed through "strip -S". + static bool IsNonDebugStrippedELFBinary(const string &path); + + // Match a requested section name with the section name as it + // appears in the elf-file, adjusting for compressed debug section + // names. For example, returns true if name == ".debug_abbrev" and + // sh_name == ".zdebug_abbrev" + static bool SectionNamesMatch(const string &name, const string &sh_name); + + private: + // Lazily initialize impl32_ and return it. + ElfReaderImpl<Elf32> *GetImpl32(); + // Ditto for impl64_. + ElfReaderImpl<Elf64> *GetImpl64(); + + // Path of the file we're reading. + const string path_; + // Read-only file descriptor for the file. May be -1 if there was an + // error during open. + int fd_; + ElfReaderImpl<Elf32> *impl32_; + ElfReaderImpl<Elf64> *impl64_; +}; + +} // namespace dwarf2reader + +#endif // COMMON_DWARF_ELF_READER_H__ diff --git a/3rdParty/Breakpad/src/common/dwarf/functioninfo.cc b/3rdParty/Breakpad/src/common/dwarf/functioninfo.cc new file mode 100644 index 0000000..55a255e --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf/functioninfo.cc @@ -0,0 +1,231 @@ +// Copyright (c) 2010 Google Inc. All Rights Reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// This is a client for the dwarf2reader to extract function and line +// information from the debug info. + +#include <assert.h> +#include <limits.h> +#include <stdio.h> + +#include <map> +#include <queue> +#include <vector> + +#include "common/dwarf/functioninfo.h" +#include "common/dwarf/bytereader.h" +#include "common/scoped_ptr.h" +#include "common/using_std_string.h" + +using google_breakpad::scoped_ptr; + +namespace dwarf2reader { + +CULineInfoHandler::CULineInfoHandler(std::vector<SourceFileInfo>* files, + std::vector<string>* dirs, + LineMap* linemap):linemap_(linemap), + files_(files), + dirs_(dirs) { + // The dirs and files are 1 indexed, so just make sure we put + // nothing in the 0 vector. + assert(dirs->size() == 0); + assert(files->size() == 0); + dirs->push_back(""); + SourceFileInfo s; + s.name = ""; + s.lowpc = ULLONG_MAX; + files->push_back(s); +} + +void CULineInfoHandler::DefineDir(const string& name, uint32 dir_num) { + // These should never come out of order, actually + assert(dir_num == dirs_->size()); + dirs_->push_back(name); +} + +void CULineInfoHandler::DefineFile(const string& name, + int32 file_num, uint32 dir_num, + uint64 mod_time, uint64 length) { + assert(dir_num >= 0); + assert(dir_num < dirs_->size()); + + // These should never come out of order, actually. + if (file_num == (int32)files_->size() || file_num == -1) { + string dir = dirs_->at(dir_num); + + SourceFileInfo s; + s.lowpc = ULLONG_MAX; + + if (dir == "") { + s.name = name; + } else { + s.name = dir + "/" + name; + } + + files_->push_back(s); + } else { + fprintf(stderr, "error in DefineFile"); + } +} + +void CULineInfoHandler::AddLine(uint64 address, uint64 length, uint32 file_num, + uint32 line_num, uint32 column_num) { + if (file_num < files_->size()) { + linemap_->insert( + std::make_pair(address, + std::make_pair(files_->at(file_num).name.c_str(), + line_num))); + + if (address < files_->at(file_num).lowpc) { + files_->at(file_num).lowpc = address; + } + } else { + fprintf(stderr, "error in AddLine"); + } +} + +bool CUFunctionInfoHandler::StartCompilationUnit(uint64 offset, + uint8 address_size, + uint8 offset_size, + uint64 cu_length, + uint8 dwarf_version) { + current_compilation_unit_offset_ = offset; + return true; +} + + +// For function info, we only care about subprograms and inlined +// subroutines. For line info, the DW_AT_stmt_list lives in the +// compile unit tag. + +bool CUFunctionInfoHandler::StartDIE(uint64 offset, enum DwarfTag tag) { + switch (tag) { + case DW_TAG_subprogram: + case DW_TAG_inlined_subroutine: { + current_function_info_ = new FunctionInfo; + current_function_info_->lowpc = current_function_info_->highpc = 0; + current_function_info_->name = ""; + current_function_info_->line = 0; + current_function_info_->file = ""; + offset_to_funcinfo_->insert(std::make_pair(offset, + current_function_info_)); + }; + // FALLTHROUGH + case DW_TAG_compile_unit: + return true; + default: + return false; + } + return false; +} + +// Only care about the name attribute for functions + +void CUFunctionInfoHandler::ProcessAttributeString(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + const string &data) { + if (current_function_info_) { + if (attr == DW_AT_name) + current_function_info_->name = data; + else if (attr == DW_AT_MIPS_linkage_name) + current_function_info_->mangled_name = data; + } +} + +void CUFunctionInfoHandler::ProcessAttributeUnsigned(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data) { + if (attr == DW_AT_stmt_list) { + SectionMap::const_iterator iter = sections_.find("__debug_line"); + assert(iter != sections_.end()); + + scoped_ptr<LineInfo> lireader(new LineInfo(iter->second.first + data, + iter->second.second - data, + reader_, linehandler_)); + lireader->Start(); + } else if (current_function_info_) { + switch (attr) { + case DW_AT_low_pc: + current_function_info_->lowpc = data; + break; + case DW_AT_high_pc: + current_function_info_->highpc = data; + break; + case DW_AT_decl_line: + current_function_info_->line = data; + break; + case DW_AT_decl_file: + current_function_info_->file = files_->at(data).name; + break; + default: + break; + } + } +} + +void CUFunctionInfoHandler::ProcessAttributeReference(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data) { + if (current_function_info_) { + switch (attr) { + case DW_AT_specification: { + // Some functions have a "specification" attribute + // which means they were defined elsewhere. The name + // attribute is not repeated, and must be taken from + // the specification DIE. Here we'll assume that + // any DIE referenced in this manner will already have + // been seen, but that's not really required by the spec. + FunctionMap::iterator iter = offset_to_funcinfo_->find(data); + if (iter != offset_to_funcinfo_->end()) { + current_function_info_->name = iter->second->name; + current_function_info_->mangled_name = iter->second->mangled_name; + } else { + // If you hit this, this code probably needs to be rewritten. + fprintf(stderr, + "Error: DW_AT_specification was seen before the referenced " + "DIE! (Looking for DIE at offset %08llx, in DIE at " + "offset %08llx)\n", data, offset); + } + break; + } + default: + break; + } + } +} + +void CUFunctionInfoHandler::EndDIE(uint64 offset) { + if (current_function_info_ && current_function_info_->lowpc) + address_to_funcinfo_->insert(std::make_pair(current_function_info_->lowpc, + current_function_info_)); +} + +} // namespace dwarf2reader diff --git a/3rdParty/Breakpad/src/common/dwarf/functioninfo.h b/3rdParty/Breakpad/src/common/dwarf/functioninfo.h new file mode 100644 index 0000000..0b08a5f --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf/functioninfo.h @@ -0,0 +1,188 @@ +// Copyright (c) 2010 Google Inc. All Rights Reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + +// This file contains the definitions for a DWARF2/3 information +// collector that uses the DWARF2/3 reader interface to build a mapping +// of addresses to files, lines, and functions. + +#ifndef COMMON_DWARF_FUNCTIONINFO_H__ +#define COMMON_DWARF_FUNCTIONINFO_H__ + +#include <map> +#include <string> +#include <utility> +#include <vector> + +#include "common/dwarf/dwarf2reader.h" +#include "common/using_std_string.h" + + +namespace dwarf2reader { + +struct FunctionInfo { + // Name of the function + string name; + // Mangled name of the function + string mangled_name; + // File containing this function + string file; + // Line number for start of function. + uint32 line; + // Beginning address for this function + uint64 lowpc; + // End address for this function. + uint64 highpc; +}; + +struct SourceFileInfo { + // Name of the source file name + string name; + // Low address of source file name + uint64 lowpc; +}; + +typedef std::map<uint64, FunctionInfo*> FunctionMap; +typedef std::map<uint64, std::pair<string, uint32> > LineMap; + +// This class is a basic line info handler that fills in the dirs, +// file, and linemap passed into it with the data produced from the +// LineInfoHandler. +class CULineInfoHandler: public LineInfoHandler { + public: + + // + CULineInfoHandler(std::vector<SourceFileInfo>* files, + std::vector<string>* dirs, + LineMap* linemap); + virtual ~CULineInfoHandler() { } + + // Called when we define a directory. We just place NAME into dirs_ + // at position DIR_NUM. + virtual void DefineDir(const string& name, uint32 dir_num); + + // Called when we define a filename. We just place + // concat(dirs_[DIR_NUM], NAME) into files_ at position FILE_NUM. + virtual void DefineFile(const string& name, int32 file_num, + uint32 dir_num, uint64 mod_time, uint64 length); + + + // Called when the line info reader has a new line, address pair + // ready for us. ADDRESS is the address of the code, LENGTH is the + // length of its machine code in bytes, FILE_NUM is the file number + // containing the code, LINE_NUM is the line number in that file for + // the code, and COLUMN_NUM is the column number the code starts at, + // if we know it (0 otherwise). + virtual void AddLine(uint64 address, uint64 length, + uint32 file_num, uint32 line_num, uint32 column_num); + + private: + LineMap* linemap_; + std::vector<SourceFileInfo>* files_; + std::vector<string>* dirs_; +}; + +class CUFunctionInfoHandler: public Dwarf2Handler { + public: + CUFunctionInfoHandler(std::vector<SourceFileInfo>* files, + std::vector<string>* dirs, + LineMap* linemap, + FunctionMap* offset_to_funcinfo, + FunctionMap* address_to_funcinfo, + CULineInfoHandler* linehandler, + const SectionMap& sections, + ByteReader* reader) + : files_(files), dirs_(dirs), linemap_(linemap), + offset_to_funcinfo_(offset_to_funcinfo), + address_to_funcinfo_(address_to_funcinfo), + linehandler_(linehandler), sections_(sections), + reader_(reader), current_function_info_(NULL) { } + + virtual ~CUFunctionInfoHandler() { } + + // Start to process a compilation unit at OFFSET from the beginning of the + // .debug_info section. We want to see all compilation units, so we + // always return true. + + virtual bool StartCompilationUnit(uint64 offset, uint8 address_size, + uint8 offset_size, uint64 cu_length, + uint8 dwarf_version); + + // Start to process a DIE at OFFSET from the beginning of the + // .debug_info section. We only care about function related DIE's. + virtual bool StartDIE(uint64 offset, enum DwarfTag tag); + + // Called when we have an attribute with unsigned data to give to + // our handler. The attribute is for the DIE at OFFSET from the + // beginning of the .debug_info section, has a name of ATTR, a form of + // FORM, and the actual data of the attribute is in DATA. + virtual void ProcessAttributeUnsigned(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data); + + // Called when we have an attribute with a DIE reference to give to + // our handler. The attribute is for the DIE at OFFSET from the + // beginning of the .debug_info section, has a name of ATTR, a form of + // FORM, and the offset of the referenced DIE from the start of the + // .debug_info section is in DATA. + virtual void ProcessAttributeReference(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data); + + // Called when we have an attribute with string data to give to + // our handler. The attribute is for the DIE at OFFSET from the + // beginning of the .debug_info section, has a name of ATTR, a form of + // FORM, and the actual data of the attribute is in DATA. + virtual void ProcessAttributeString(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + const string& data); + + // Called when finished processing the DIE at OFFSET. + // Because DWARF2/3 specifies a tree of DIEs, you may get starts + // before ends of the previous DIE, as we process children before + // ending the parent. + virtual void EndDIE(uint64 offset); + + private: + std::vector<SourceFileInfo>* files_; + std::vector<string>* dirs_; + LineMap* linemap_; + FunctionMap* offset_to_funcinfo_; + FunctionMap* address_to_funcinfo_; + CULineInfoHandler* linehandler_; + const SectionMap& sections_; + ByteReader* reader_; + FunctionInfo* current_function_info_; + uint64 current_compilation_unit_offset_; +}; + +} // namespace dwarf2reader +#endif // COMMON_DWARF_FUNCTIONINFO_H__ diff --git a/3rdParty/Breakpad/src/common/dwarf/types.h b/3rdParty/Breakpad/src/common/dwarf/types.h index 61ca457..59dda31 100644 --- a/3rdParty/Breakpad/src/common/dwarf/types.h +++ b/3rdParty/Breakpad/src/common/dwarf/types.h @@ -45,11 +45,7 @@ typedef unsigned short uint16; typedef unsigned int uint32; typedef unsigned long long uint64; -#ifdef __PTRDIFF_TYPE__ -typedef __PTRDIFF_TYPE__ intptr; -typedef unsigned __PTRDIFF_TYPE__ uintptr; -#else -#error "Can't find pointer-sized integral types." -#endif +typedef intptr_t intptr; +typedef uintptr_t uintptr; #endif // _COMMON_DWARF_TYPES_H__ diff --git a/3rdParty/Breakpad/src/common/dwarf_cfi_to_module.cc b/3rdParty/Breakpad/src/common/dwarf_cfi_to_module.cc index 15904d7..bd298a2 100644 --- a/3rdParty/Breakpad/src/common/dwarf_cfi_to_module.cc +++ b/3rdParty/Breakpad/src/common/dwarf_cfi_to_module.cc @@ -105,6 +105,43 @@ vector<string> DwarfCFIToModule::RegisterNames::ARM() { return MakeVector(names, sizeof(names) / sizeof(names[0])); } +// Per ARM IHI 0057A, section 3.1 +vector<string> DwarfCFIToModule::RegisterNames::ARM64() { + static const char *const names[] = { + "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", + "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", + "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23", + "x24", "x25", "x26", "x27", "x28", "x29", "x30", "sp", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", + "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", + "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", + "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31" + }; + + return MakeVector(names, sizeof(names) / sizeof(names[0])); +} + +vector<string> DwarfCFIToModule::RegisterNames::MIPS() { + static const char* const kRegisterNames[] = { + "$zero", "$at", "$v0", "$v1", "$a0", "$a1", "$a2", "$a3", + "$t0", "$t1", "$t2", "$t3", "$t4", "$t5", "$t6", "$t7", + "$s0", "$s1", "$s2", "$s3", "$s4", "$s5", "$s6", "$s7", + "$t8", "$t9", "$k0", "$k1", "$gp", "$sp", "$fp", "$ra", + "$lo", "$hi", "$pc", "$f0", "$f2", "$f3", "$f4", "$f5", + "$f6", "$f7", "$f8", "$f9", "$f10", "$f11", "$f12", "$f13", + "$f14", "$f15", "$f16", "$f17", "$f18", "$f19", "$f20", + "$f21", "$f22", "$f23", "$f24", "$f25", "$f26", "$f27", + "$f28", "$f29", "$f30", "$f31", "$fcsr", "$fir" + }; + + return MakeVector(kRegisterNames, + sizeof(kRegisterNames) / sizeof(kRegisterNames[0])); +} + bool DwarfCFIToModule::Entry(size_t offset, uint64 address, uint64 length, uint8 version, const string &augmentation, unsigned return_address) { @@ -158,7 +195,7 @@ void DwarfCFIToModule::Record(Module::Address address, int reg, // Place the name in our global set of strings, and then use the string // from the set. Even though the assignment looks like a copy, all the - // major std::string implementations use reference counting internally, + // major string implementations use reference counting internally, // so the effect is to have all our data structures share copies of rules // whenever possible. Since register names are drawn from a // vector<string>, register names are already shared. diff --git a/3rdParty/Breakpad/src/common/dwarf_cfi_to_module.h b/3rdParty/Breakpad/src/common/dwarf_cfi_to_module.h index 7db552a..a5302e1 100644 --- a/3rdParty/Breakpad/src/common/dwarf_cfi_to_module.h +++ b/3rdParty/Breakpad/src/common/dwarf_cfi_to_module.h @@ -109,6 +109,12 @@ class DwarfCFIToModule: public CallFrameInfo::Handler { // ARM. static vector<string> ARM(); + // ARM64, aka AARCH64. + static vector<string> ARM64(); + + // MIPS. + static vector<string> MIPS(); + private: // Given STRINGS, an array of C strings with SIZE elements, return an // equivalent vector<string>. @@ -175,15 +181,15 @@ class DwarfCFIToModule: public CallFrameInfo::Handler { // The names of the return address and canonical frame address. Putting // these here instead of using string literals allows us to share their - // texts in reference-counted std::string implementations (all the + // texts in reference-counted string implementations (all the // popular ones). Many, many rules cite these strings. string cfa_name_, ra_name_; // A set of strings used by this CFI. Before storing a string in one of // our data structures, insert it into this set, and then use the string // from the set. - // - // Because std::string uses reference counting internally, simply using + // + // Because string uses reference counting internally, simply using // strings from this set, even if passed by value, assigned, or held // directly in structures and containers (map<string, ...>, for example), // causes those strings to share a single instance of each distinct piece diff --git a/3rdParty/Breakpad/src/common/dwarf_cfi_to_module_unittest.cc b/3rdParty/Breakpad/src/common/dwarf_cfi_to_module_unittest.cc new file mode 100644 index 0000000..807d1b2 --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf_cfi_to_module_unittest.cc @@ -0,0 +1,306 @@ +// Copyright (c) 2010, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// dwarf_cfi_to_module_unittest.cc: Tests for google_breakpad::DwarfCFIToModule. + +#include <string> +#include <vector> + +#include "breakpad_googletest_includes.h" +#include "common/dwarf_cfi_to_module.h" +#include "common/using_std_string.h" + +using std::vector; + +using google_breakpad::Module; +using google_breakpad::DwarfCFIToModule; +using testing::ContainerEq; +using testing::Test; +using testing::_; + +struct MockCFIReporter: public DwarfCFIToModule::Reporter { + MockCFIReporter(const string &file, const string §ion) + : Reporter(file, section) { } + MOCK_METHOD2(UnnamedRegister, void(size_t offset, int reg)); + MOCK_METHOD2(UndefinedNotSupported, void(size_t offset, const string ®)); + MOCK_METHOD2(ExpressionsNotSupported, void(size_t offset, const string ®)); +}; + +struct DwarfCFIToModuleFixture { + DwarfCFIToModuleFixture() + : module("module name", "module os", "module arch", "module id"), + reporter("reporter file", "reporter section"), + handler(&module, register_names, &reporter) { + register_names.push_back("reg0"); + register_names.push_back("reg1"); + register_names.push_back("reg2"); + register_names.push_back("reg3"); + register_names.push_back("reg4"); + register_names.push_back("reg5"); + register_names.push_back("reg6"); + register_names.push_back("reg7"); + register_names.push_back("sp"); + register_names.push_back("pc"); + register_names.push_back(""); + + EXPECT_CALL(reporter, UnnamedRegister(_, _)).Times(0); + EXPECT_CALL(reporter, UndefinedNotSupported(_, _)).Times(0); + EXPECT_CALL(reporter, ExpressionsNotSupported(_, _)).Times(0); + } + + Module module; + vector<string> register_names; + MockCFIReporter reporter; + DwarfCFIToModule handler; + vector<Module::StackFrameEntry *> entries; +}; + +class Entry: public DwarfCFIToModuleFixture, public Test { }; + +TEST_F(Entry, Accept) { + ASSERT_TRUE(handler.Entry(0x3b8961b8, 0xa21069698096fc98ULL, + 0xb440ce248169c8d6ULL, 3, "", 0xea93c106)); + ASSERT_TRUE(handler.End()); + module.GetStackFrameEntries(&entries); + EXPECT_EQ(1U, entries.size()); + EXPECT_EQ(0xa21069698096fc98ULL, entries[0]->address); + EXPECT_EQ(0xb440ce248169c8d6ULL, entries[0]->size); + EXPECT_EQ(0U, entries[0]->initial_rules.size()); + EXPECT_EQ(0U, entries[0]->rule_changes.size()); +} + +TEST_F(Entry, AcceptOldVersion) { + ASSERT_TRUE(handler.Entry(0xeb60e0fc, 0x75b8806bb09eab78ULL, + 0xc771f44958d40bbcULL, 1, "", 0x093c945e)); + ASSERT_TRUE(handler.End()); + module.GetStackFrameEntries(&entries); + EXPECT_EQ(1U, entries.size()); + EXPECT_EQ(0x75b8806bb09eab78ULL, entries[0]->address); + EXPECT_EQ(0xc771f44958d40bbcULL, entries[0]->size); + EXPECT_EQ(0U, entries[0]->initial_rules.size()); + EXPECT_EQ(0U, entries[0]->rule_changes.size()); +} + +struct RuleFixture: public DwarfCFIToModuleFixture { + RuleFixture() : DwarfCFIToModuleFixture() { + entry_address = 0x89327ebf86b47492ULL; + entry_size = 0x2f8cd573072fe02aULL; + return_reg = 0x7886a346; + } + void StartEntry() { + ASSERT_TRUE(handler.Entry(0x4445c05c, entry_address, entry_size, + 3, "", return_reg)); + } + void CheckEntry() { + module.GetStackFrameEntries(&entries); + EXPECT_EQ(1U, entries.size()); + EXPECT_EQ(entry_address, entries[0]->address); + EXPECT_EQ(entry_size, entries[0]->size); + } + uint64 entry_address, entry_size; + unsigned return_reg; +}; + +class Rule: public RuleFixture, public Test { }; + +TEST_F(Rule, UndefinedRule) { + EXPECT_CALL(reporter, UndefinedNotSupported(_, "reg7")); + StartEntry(); + ASSERT_TRUE(handler.UndefinedRule(entry_address, 7)); + ASSERT_TRUE(handler.End()); + CheckEntry(); + EXPECT_EQ(0U, entries[0]->initial_rules.size()); + EXPECT_EQ(0U, entries[0]->rule_changes.size()); +} + +TEST_F(Rule, RegisterWithEmptyName) { + EXPECT_CALL(reporter, UnnamedRegister(_, 10)); + EXPECT_CALL(reporter, UndefinedNotSupported(_, "unnamed_register10")); + StartEntry(); + ASSERT_TRUE(handler.UndefinedRule(entry_address, 10)); + ASSERT_TRUE(handler.End()); + CheckEntry(); + EXPECT_EQ(0U, entries[0]->initial_rules.size()); + EXPECT_EQ(0U, entries[0]->rule_changes.size()); +} + +TEST_F(Rule, SameValueRule) { + StartEntry(); + ASSERT_TRUE(handler.SameValueRule(entry_address, 6)); + ASSERT_TRUE(handler.End()); + CheckEntry(); + Module::RuleMap expected_initial; + expected_initial["reg6"] = "reg6"; + EXPECT_THAT(entries[0]->initial_rules, ContainerEq(expected_initial)); + EXPECT_EQ(0U, entries[0]->rule_changes.size()); +} + +TEST_F(Rule, OffsetRule) { + StartEntry(); + ASSERT_TRUE(handler.OffsetRule(entry_address + 1, return_reg, + DwarfCFIToModule::kCFARegister, + 16927065)); + ASSERT_TRUE(handler.End()); + CheckEntry(); + EXPECT_EQ(0U, entries[0]->initial_rules.size()); + Module::RuleChangeMap expected_changes; + expected_changes[entry_address + 1][".ra"] = ".cfa 16927065 + ^"; + EXPECT_THAT(entries[0]->rule_changes, ContainerEq(expected_changes)); +} + +TEST_F(Rule, OffsetRuleNegative) { + StartEntry(); + ASSERT_TRUE(handler.OffsetRule(entry_address + 1, + DwarfCFIToModule::kCFARegister, 4, -34530721)); + ASSERT_TRUE(handler.End()); + CheckEntry(); + EXPECT_EQ(0U, entries[0]->initial_rules.size()); + Module::RuleChangeMap expected_changes; + expected_changes[entry_address + 1][".cfa"] = "reg4 -34530721 + ^"; + EXPECT_THAT(entries[0]->rule_changes, ContainerEq(expected_changes)); +} + +TEST_F(Rule, ValOffsetRule) { + // Use an unnamed register number, to exercise that branch of RegisterName. + EXPECT_CALL(reporter, UnnamedRegister(_, 11)); + StartEntry(); + ASSERT_TRUE(handler.ValOffsetRule(entry_address + 0x5ab7, + DwarfCFIToModule::kCFARegister, + 11, 61812979)); + ASSERT_TRUE(handler.End()); + CheckEntry(); + EXPECT_EQ(0U, entries[0]->initial_rules.size()); + Module::RuleChangeMap expected_changes; + expected_changes[entry_address + 0x5ab7][".cfa"] = + "unnamed_register11 61812979 +"; + EXPECT_THAT(entries[0]->rule_changes, ContainerEq(expected_changes)); +} + +TEST_F(Rule, RegisterRule) { + StartEntry(); + ASSERT_TRUE(handler.RegisterRule(entry_address, return_reg, 3)); + ASSERT_TRUE(handler.End()); + CheckEntry(); + Module::RuleMap expected_initial; + expected_initial[".ra"] = "reg3"; + EXPECT_THAT(entries[0]->initial_rules, ContainerEq(expected_initial)); + EXPECT_EQ(0U, entries[0]->rule_changes.size()); +} + +TEST_F(Rule, ExpressionRule) { + EXPECT_CALL(reporter, ExpressionsNotSupported(_, "reg2")); + StartEntry(); + ASSERT_TRUE(handler.ExpressionRule(entry_address + 0xf326, 2, + "it takes two to tango")); + ASSERT_TRUE(handler.End()); + CheckEntry(); + EXPECT_EQ(0U, entries[0]->initial_rules.size()); + EXPECT_EQ(0U, entries[0]->rule_changes.size()); +} + +TEST_F(Rule, ValExpressionRule) { + EXPECT_CALL(reporter, ExpressionsNotSupported(_, "reg0")); + StartEntry(); + ASSERT_TRUE(handler.ValExpressionRule(entry_address + 0x6367, 0, + "bit off more than he could chew")); + ASSERT_TRUE(handler.End()); + CheckEntry(); + EXPECT_EQ(0U, entries[0]->initial_rules.size()); + EXPECT_EQ(0U, entries[0]->rule_changes.size()); +} + +TEST_F(Rule, DefaultReturnAddressRule) { + return_reg = 2; + StartEntry(); + ASSERT_TRUE(handler.RegisterRule(entry_address, 0, 1)); + ASSERT_TRUE(handler.End()); + CheckEntry(); + Module::RuleMap expected_initial; + expected_initial[".ra"] = "reg2"; + expected_initial["reg0"] = "reg1"; + EXPECT_THAT(entries[0]->initial_rules, ContainerEq(expected_initial)); + EXPECT_EQ(0U, entries[0]->rule_changes.size()); +} + +TEST_F(Rule, DefaultReturnAddressRuleOverride) { + return_reg = 2; + StartEntry(); + ASSERT_TRUE(handler.RegisterRule(entry_address, return_reg, 1)); + ASSERT_TRUE(handler.End()); + CheckEntry(); + Module::RuleMap expected_initial; + expected_initial[".ra"] = "reg1"; + EXPECT_THAT(entries[0]->initial_rules, ContainerEq(expected_initial)); + EXPECT_EQ(0U, entries[0]->rule_changes.size()); +} + +TEST_F(Rule, DefaultReturnAddressRuleLater) { + return_reg = 2; + StartEntry(); + ASSERT_TRUE(handler.RegisterRule(entry_address + 1, return_reg, 1)); + ASSERT_TRUE(handler.End()); + CheckEntry(); + Module::RuleMap expected_initial; + expected_initial[".ra"] = "reg2"; + EXPECT_THAT(entries[0]->initial_rules, ContainerEq(expected_initial)); + Module::RuleChangeMap expected_changes; + expected_changes[entry_address + 1][".ra"] = "reg1"; + EXPECT_THAT(entries[0]->rule_changes, ContainerEq(expected_changes)); +} + +TEST(RegisterNames, I386) { + vector<string> names = DwarfCFIToModule::RegisterNames::I386(); + + EXPECT_EQ("$eax", names[0]); + EXPECT_EQ("$ecx", names[1]); + EXPECT_EQ("$esp", names[4]); + EXPECT_EQ("$eip", names[8]); +} + +TEST(RegisterNames, ARM) { + vector<string> names = DwarfCFIToModule::RegisterNames::ARM(); + + EXPECT_EQ("r0", names[0]); + EXPECT_EQ("r10", names[10]); + EXPECT_EQ("sp", names[13]); + EXPECT_EQ("lr", names[14]); + EXPECT_EQ("pc", names[15]); +} + +TEST(RegisterNames, X86_64) { + vector<string> names = DwarfCFIToModule::RegisterNames::X86_64(); + + EXPECT_EQ("$rax", names[0]); + EXPECT_EQ("$rdx", names[1]); + EXPECT_EQ("$rbp", names[6]); + EXPECT_EQ("$rsp", names[7]); + EXPECT_EQ("$rip", names[16]); +} diff --git a/3rdParty/Breakpad/src/common/dwarf_cu_to_module.cc b/3rdParty/Breakpad/src/common/dwarf_cu_to_module.cc index ded5f83..a16bee7 100644 --- a/3rdParty/Breakpad/src/common/dwarf_cu_to_module.cc +++ b/3rdParty/Breakpad/src/common/dwarf_cu_to_module.cc @@ -40,23 +40,24 @@ #include <assert.h> #include <inttypes.h> +#include <stdint.h> #include <stdio.h> #include <algorithm> -#include <set> #include <utility> #include "common/dwarf_line_to_module.h" +#include "common/unordered.h" namespace google_breakpad { using std::map; using std::pair; -using std::set; +using std::sort; using std::vector; // Data provided by a DWARF specification DIE. -// +// // In DWARF, the DIE for a definition may contain a DW_AT_specification // attribute giving the offset of the corresponding declaration DIE, and // the definition DIE may omit information given in the declaration. For @@ -73,6 +74,9 @@ using std::vector; // A Specification holds information gathered from a declaration DIE that // we may need if we find a DW_AT_specification link pointing to it. struct DwarfCUToModule::Specification { + // The qualified name that can be found by demangling DW_AT_MIPS_linkage_name. + string qualified_name; + // The name of the enclosing scope, or the empty string if there is none. string enclosing_name; @@ -84,7 +88,7 @@ struct DwarfCUToModule::Specification { // An abstract origin -- base definition of an inline function. struct AbstractOrigin { AbstractOrigin() : name() {} - AbstractOrigin(const string& name) : name(name) {} + explicit AbstractOrigin(const string& name) : name(name) {} string name; }; @@ -97,13 +101,21 @@ struct DwarfCUToModule::FilePrivate { // A set of strings used in this CU. Before storing a string in one of // our data structures, insert it into this set, and then use the string // from the set. - // - // Because std::string uses reference counting internally, simply using - // strings from this set, even if passed by value, assigned, or held - // directly in structures and containers (map<string, ...>, for example), - // causes those strings to share a single instance of each distinct piece - // of text. - set<string> common_strings; + // + // In some STL implementations, strings are reference-counted internally, + // meaning that simply using strings from this set, even if passed by + // value, assigned, or held directly in structures and containers + // (map<string, ...>, for example), causes those strings to share a + // single instance of each distinct piece of text. GNU's libstdc++ uses + // reference counts, and I believe MSVC did as well, at some point. + // However, C++ '11 implementations are moving away from reference + // counting. + // + // In other implementations, string assignments copy the string's text, + // so this set will actually hold yet another copy of the string (although + // everything will still work). To improve memory consumption portably, + // we will probably need to use pointers to strings held in this set. + unordered_set<string> common_strings; // A map from offsets of DIEs within the .debug_info section to // Specifications describing those DIEs. Specification references can @@ -113,14 +125,42 @@ struct DwarfCUToModule::FilePrivate { AbstractOriginByOffset origins; }; -DwarfCUToModule::FileContext::FileContext(const string &filename_arg, - Module *module_arg) - : filename(filename_arg), module(module_arg) { - file_private = new FilePrivate(); +DwarfCUToModule::FileContext::FileContext(const string &filename, + Module *module, + bool handle_inter_cu_refs) + : filename_(filename), + module_(module), + handle_inter_cu_refs_(handle_inter_cu_refs), + file_private_(new FilePrivate()) { } DwarfCUToModule::FileContext::~FileContext() { - delete file_private; +} + +void DwarfCUToModule::FileContext::AddSectionToSectionMap( + const string& name, const uint8_t *contents, uint64 length) { + section_map_[name] = std::make_pair(contents, length); +} + +void DwarfCUToModule::FileContext::ClearSectionMapForTest() { + section_map_.clear(); +} + +const dwarf2reader::SectionMap& +DwarfCUToModule::FileContext::section_map() const { + return section_map_; +} + +void DwarfCUToModule::FileContext::ClearSpecifications() { + if (!handle_inter_cu_refs_) + file_private_->specifications.clear(); +} + +bool DwarfCUToModule::FileContext::IsUnhandledInterCUReference( + uint64 offset, uint64 compilation_unit_start) const { + if (handle_inter_cu_refs_) + return false; + return offset < compilation_unit_start; } // Information global to the particular compilation unit we're @@ -130,11 +170,13 @@ struct DwarfCUToModule::CUContext { CUContext(FileContext *file_context_arg, WarningReporter *reporter_arg) : file_context(file_context_arg), reporter(reporter_arg), - language(Language::CPlusPlus) { } + language(Language::CPlusPlus) {} + ~CUContext() { for (vector<Module::Function *>::iterator it = functions.begin(); - it != functions.end(); it++) + it != functions.end(); ++it) { delete *it; + } }; // The DWARF-bearing file into which this CU was incorporated. @@ -218,6 +260,14 @@ class DwarfCUToModule::GenericDIEHandler: public dwarf2reader::DIEHandler { DIEContext *parent_context_; uint64 offset_; + // Place the name in the global set of strings. Even though this looks + // like a copy, all the major string implementations use reference + // counting internally, so the effect is to have all the data structures + // share copies of strings whenever possible. + // FIXME: Should this return something like a string_ref to avoid the + // assumption about how strings are implemented? + string AddStringToPool(const string &str); + // If this DIE has a DW_AT_declaration attribute, this is its value. // It is false on DIEs with no DW_AT_declaration attribute. bool declaration_; @@ -230,6 +280,11 @@ class DwarfCUToModule::GenericDIEHandler: public dwarf2reader::DIEHandler { // The value of the DW_AT_name attribute, or the empty string if the // DIE has no such attribute. string name_attribute_; + + // The demangled value of the DW_AT_MIPS_linkage_name attribute, or the empty + // string if the DIE has no such attribute or its content could not be + // demangled. + string demangled_name_; }; void DwarfCUToModule::GenericDIEHandler::ProcessAttributeUnsigned( @@ -248,14 +303,19 @@ void DwarfCUToModule::GenericDIEHandler::ProcessAttributeReference( uint64 data) { switch (attr) { case dwarf2reader::DW_AT_specification: { + FileContext *file_context = cu_context_->file_context; + if (file_context->IsUnhandledInterCUReference( + data, cu_context_->reporter->cu_offset())) { + cu_context_->reporter->UnhandledInterCUReference(offset_, data); + break; + } // Find the Specification to which this attribute refers, and // set specification_ appropriately. We could do more processing // here, but it's better to leave the real work to our // EndAttribute member function, at which point we know we have // seen all the DIE's attributes. - FileContext *file_context = cu_context_->file_context; - SpecificationByOffset *specifications - = &file_context->file_private->specifications; + SpecificationByOffset *specifications = + &file_context->file_private_->specifications; SpecificationByOffset::iterator spec = specifications->find(data); if (spec != specifications->end()) { specification_ = &spec->second; @@ -273,20 +333,37 @@ void DwarfCUToModule::GenericDIEHandler::ProcessAttributeReference( } } +string DwarfCUToModule::GenericDIEHandler::AddStringToPool(const string &str) { + pair<unordered_set<string>::iterator, bool> result = + cu_context_->file_context->file_private_->common_strings.insert(str); + return *result.first; +} + void DwarfCUToModule::GenericDIEHandler::ProcessAttributeString( enum DwarfAttribute attr, enum DwarfForm form, const string &data) { switch (attr) { - case dwarf2reader::DW_AT_name: { - // Place the name in our global set of strings, and then use the - // string from the set. Even though the assignment looks like a copy, - // all the major std::string implementations use reference counting - // internally, so the effect is to have all our data structures share - // copies of strings whenever possible. - pair<set<string>::iterator, bool> result = - cu_context_->file_context->file_private->common_strings.insert(data); - name_attribute_ = *result.first; + case dwarf2reader::DW_AT_name: + name_attribute_ = AddStringToPool(data); + break; + case dwarf2reader::DW_AT_MIPS_linkage_name: + case dwarf2reader::DW_AT_linkage_name: { + string demangled; + Language::DemangleResult result = + cu_context_->language->DemangleName(data, &demangled); + switch (result) { + case Language::kDemangleSuccess: + demangled_name_ = AddStringToPool(demangled); + break; + + case Language::kDemangleFailure: + cu_context_->reporter->DemangleError(data); + // fallthrough + case Language::kDontDemangle: + demangled_name_.clear(); + break; + } break; } default: break; @@ -294,37 +371,64 @@ void DwarfCUToModule::GenericDIEHandler::ProcessAttributeString( } string DwarfCUToModule::GenericDIEHandler::ComputeQualifiedName() { - // Find our unqualified name. If the DIE has its own DW_AT_name - // attribute, then use that; otherwise, check our specification. - const string *unqualified_name; - if (name_attribute_.empty() && specification_) - unqualified_name = &specification_->unqualified_name; - else - unqualified_name = &name_attribute_; - - // Find the name of our enclosing context. If we have a - // specification, it's the specification's enclosing context that - // counts; otherwise, use this DIE's context. + // Use the demangled name, if one is available. Demangled names are + // preferable to those inferred from the DWARF structure because they + // include argument types. + const string *qualified_name = NULL; + if (!demangled_name_.empty()) { + // Found it is this DIE. + qualified_name = &demangled_name_; + } else if (specification_ && !specification_->qualified_name.empty()) { + // Found it on the specification. + qualified_name = &specification_->qualified_name; + } + + const string *unqualified_name = NULL; const string *enclosing_name; - if (specification_) - enclosing_name = &specification_->enclosing_name; - else - enclosing_name = &parent_context_->name; + if (!qualified_name) { + // Find the unqualified name. If the DIE has its own DW_AT_name + // attribute, then use that; otherwise, check the specification. + if (!name_attribute_.empty()) + unqualified_name = &name_attribute_; + else if (specification_) + unqualified_name = &specification_->unqualified_name; + + // Find the name of the enclosing context. If this DIE has a + // specification, it's the specification's enclosing context that + // counts; otherwise, use this DIE's context. + if (specification_) + enclosing_name = &specification_->enclosing_name; + else + enclosing_name = &parent_context_->name; + } + + // Prepare the return value before upcoming mutations possibly invalidate the + // existing pointers. + string return_value; + if (qualified_name) { + return_value = *qualified_name; + } else if (unqualified_name && enclosing_name) { + // Combine the enclosing name and unqualified name to produce our + // own fully-qualified name. + return_value = cu_context_->language->MakeQualifiedName(*enclosing_name, + *unqualified_name); + } // If this DIE was marked as a declaration, record its names in the // specification table. - if (declaration_) { - FileContext *file_context = cu_context_->file_context; + if ((declaration_ && qualified_name) || + (unqualified_name && enclosing_name)) { Specification spec; - spec.enclosing_name = *enclosing_name; - spec.unqualified_name = *unqualified_name; - file_context->file_private->specifications[offset_] = spec; + if (qualified_name) { + spec.qualified_name = *qualified_name; + } else { + spec.enclosing_name = *enclosing_name; + spec.unqualified_name = *unqualified_name; + } + cu_context_->file_context->file_private_->specifications[offset_] = spec; } - // Combine the enclosing name and unqualified name to produce our - // own fully-qualified name. - return cu_context_->language->MakeQualifiedName(*enclosing_name, - *unqualified_name); + return return_value; } // A handler class for DW_TAG_subprogram DIEs. @@ -333,7 +437,8 @@ class DwarfCUToModule::FuncHandler: public GenericDIEHandler { FuncHandler(CUContext *cu_context, DIEContext *parent_context, uint64 offset) : GenericDIEHandler(cu_context, parent_context, offset), - low_pc_(0), high_pc_(0), abstract_origin_(NULL), inline_(false) { } + low_pc_(0), high_pc_(0), high_pc_form_(dwarf2reader::DW_FORM_addr), + abstract_origin_(NULL), inline_(false) { } void ProcessAttributeUnsigned(enum DwarfAttribute attr, enum DwarfForm form, uint64 data); @@ -352,6 +457,7 @@ class DwarfCUToModule::FuncHandler: public GenericDIEHandler { // specification_, parent_context_. Computed in EndAttributes. string name_; uint64 low_pc_, high_pc_; // DW_AT_low_pc, DW_AT_high_pc + DwarfForm high_pc_form_; // DW_AT_high_pc can be length or address. const AbstractOrigin* abstract_origin_; bool inline_; }; @@ -367,7 +473,11 @@ void DwarfCUToModule::FuncHandler::ProcessAttributeUnsigned( case dwarf2reader::DW_AT_inline: inline_ = true; break; case dwarf2reader::DW_AT_low_pc: low_pc_ = data; break; - case dwarf2reader::DW_AT_high_pc: high_pc_ = data; break; + case dwarf2reader::DW_AT_high_pc: + high_pc_form_ = form; + high_pc_ = data; + break; + default: GenericDIEHandler::ProcessAttributeUnsigned(attr, form, data); break; @@ -393,10 +503,10 @@ void DwarfCUToModule::FuncHandler::ProcessAttributeReference( enum DwarfAttribute attr, enum DwarfForm form, uint64 data) { - switch(attr) { + switch (attr) { case dwarf2reader::DW_AT_abstract_origin: { const AbstractOriginByOffset& origins = - cu_context_->file_context->file_private->origins; + cu_context_->file_context->file_private_->origins; AbstractOriginByOffset::const_iterator origin = origins.find(data); if (origin != origins.end()) { abstract_origin_ = &(origin->second); @@ -421,33 +531,39 @@ bool DwarfCUToModule::FuncHandler::EndAttributes() { } void DwarfCUToModule::FuncHandler::Finish() { + // Make high_pc_ an address, if it isn't already. + if (high_pc_form_ != dwarf2reader::DW_FORM_addr) { + high_pc_ += low_pc_; + } + // Did we collect the information we need? Not all DWARF function // entries have low and high addresses (for example, inlined // functions that were never used), but all the ones we're // interested in cover a non-empty range of bytes. if (low_pc_ < high_pc_) { - // Create a Module::Function based on the data we've gathered, and - // add it to the functions_ list. - Module::Function *func = new Module::Function; // Malformed DWARF may omit the name, but all Module::Functions must // have names. + string name; if (!name_.empty()) { - func->name = name_; + name = name_; } else { cu_context_->reporter->UnnamedFunction(offset_); - func->name = "<name omitted>"; + name = "<name omitted>"; } - func->address = low_pc_; + + // Create a Module::Function based on the data we've gathered, and + // add it to the functions_ list. + scoped_ptr<Module::Function> func(new Module::Function(name, low_pc_)); func->size = high_pc_ - low_pc_; func->parameter_size = 0; if (func->address) { // If the function address is zero this is a sign that this function // description is just empty debug data and should just be discarded. - cu_context_->functions.push_back(func); + cu_context_->functions.push_back(func.release()); } } else if (inline_) { AbstractOrigin origin(name_); - cu_context_->file_context->file_private->origins[offset_] = origin; + cu_context_->file_context->file_private_->origins[offset_] = origin; } } @@ -459,8 +575,7 @@ class DwarfCUToModule::NamedScopeHandler: public GenericDIEHandler { uint64 offset) : GenericDIEHandler(cu_context, parent_context, offset) { } bool EndAttributes(); - DIEHandler *FindChildHandler(uint64 offset, enum DwarfTag tag, - const AttributeList &attrs); + DIEHandler *FindChildHandler(uint64 offset, enum DwarfTag tag); private: DIEContext child_context_; // A context for our children. @@ -473,8 +588,7 @@ bool DwarfCUToModule::NamedScopeHandler::EndAttributes() { dwarf2reader::DIEHandler *DwarfCUToModule::NamedScopeHandler::FindChildHandler( uint64 offset, - enum DwarfTag tag, - const AttributeList &attrs) { + enum DwarfTag tag) { switch (tag) { case dwarf2reader::DW_TAG_subprogram: return new FuncHandler(cu_context_, &child_context_, offset); @@ -561,17 +675,31 @@ void DwarfCUToModule::WarningReporter::UnnamedFunction(uint64 offset) { filename_.c_str(), offset); } +void DwarfCUToModule::WarningReporter::DemangleError(const string &input) { + CUHeading(); + fprintf(stderr, "%s: warning: failed to demangle %s\n", + filename_.c_str(), input.c_str()); +} + +void DwarfCUToModule::WarningReporter::UnhandledInterCUReference( + uint64 offset, uint64 target) { + CUHeading(); + fprintf(stderr, "%s: warning: the DIE at offset 0x%llx has a " + "DW_FORM_ref_addr attribute with an inter-CU reference to " + "0x%llx, but inter-CU reference handling is turned off.\n", + filename_.c_str(), offset, target); +} + DwarfCUToModule::DwarfCUToModule(FileContext *file_context, - LineToModuleFunctor *line_reader, + LineToModuleHandler *line_reader, WarningReporter *reporter) - : line_reader_(line_reader), has_source_line_info_(false) { - cu_context_ = new CUContext(file_context, reporter); - child_context_ = new DIEContext(); + : line_reader_(line_reader), + cu_context_(new CUContext(file_context, reporter)), + child_context_(new DIEContext()), + has_source_line_info_(false) { } DwarfCUToModule::~DwarfCUToModule() { - delete cu_context_; - delete child_context_; } void DwarfCUToModule::ProcessAttributeSigned(enum DwarfAttribute attr, @@ -605,8 +733,16 @@ void DwarfCUToModule::ProcessAttributeUnsigned(enum DwarfAttribute attr, void DwarfCUToModule::ProcessAttributeString(enum DwarfAttribute attr, enum DwarfForm form, const string &data) { - if (attr == dwarf2reader::DW_AT_name) - cu_context_->reporter->SetCUName(data); + switch (attr) { + case dwarf2reader::DW_AT_name: + cu_context_->reporter->SetCUName(data); + break; + case dwarf2reader::DW_AT_comp_dir: + line_reader_->StartCompilationUnit(data); + break; + default: + break; + } } bool DwarfCUToModule::EndAttributes() { @@ -615,16 +751,17 @@ bool DwarfCUToModule::EndAttributes() { dwarf2reader::DIEHandler *DwarfCUToModule::FindChildHandler( uint64 offset, - enum DwarfTag tag, - const AttributeList &attrs) { + enum DwarfTag tag) { switch (tag) { case dwarf2reader::DW_TAG_subprogram: - return new FuncHandler(cu_context_, child_context_, offset); + return new FuncHandler(cu_context_.get(), child_context_.get(), offset); case dwarf2reader::DW_TAG_namespace: case dwarf2reader::DW_TAG_class_type: case dwarf2reader::DW_TAG_structure_type: case dwarf2reader::DW_TAG_union_type: - return new NamedScopeHandler(cu_context_, child_context_, offset); + case dwarf2reader::DW_TAG_module: + return new NamedScopeHandler(cu_context_.get(), child_context_.get(), + offset); default: return NULL; } @@ -636,6 +773,14 @@ void DwarfCUToModule::SetLanguage(DwarfLanguage language) { cu_context_->language = Language::Java; break; + case dwarf2reader::DW_LANG_Swift: + cu_context_->language = Language::Swift; + break; + + case dwarf2reader::DW_LANG_Rust: + cu_context_->language = Language::Rust; + break; + // DWARF has no generic language code for assembly language; this is // what the GNU toolchain uses. case dwarf2reader::DW_LANG_Mips_Assembler: @@ -649,7 +794,7 @@ void DwarfCUToModule::SetLanguage(DwarfLanguage language) { // Objective C and Objective C++ seem to create entries for // methods whose DW_AT_name values are already fully-qualified: // "-[Classname method:]". These appear at the top level. - // + // // DWARF data for C should never include namespaces or functions // nested in struct types, but if it ever does, then C++'s // notation is probably not a bad choice for that. @@ -667,7 +812,7 @@ void DwarfCUToModule::SetLanguage(DwarfLanguage language) { void DwarfCUToModule::ReadSourceLines(uint64 offset) { const dwarf2reader::SectionMap §ion_map - = cu_context_->file_context->section_map; + = cu_context_->file_context->section_map(); dwarf2reader::SectionMap::const_iterator map_entry = section_map.find(".debug_line"); // Mac OS X puts DWARF data in sections whose names begin with "__" @@ -678,14 +823,14 @@ void DwarfCUToModule::ReadSourceLines(uint64 offset) { cu_context_->reporter->MissingSection(".debug_line"); return; } - const char *section_start = map_entry->second.first; + const uint8_t *section_start = map_entry->second.first; uint64 section_length = map_entry->second.second; if (offset >= section_length) { cu_context_->reporter->BadLineInfoOffset(offset); return; } - (*line_reader_)(section_start + offset, section_length - offset, - cu_context_->file_context->module, &lines_); + line_reader_->ReadProgram(section_start + offset, section_length - offset, + cu_context_->file_context->module_, &lines_); } namespace { @@ -715,9 +860,9 @@ void DwarfCUToModule::AssignLinesToFunctions() { // complexity from here on out is linear. // Put both our functions and lines in order by address. - sort(functions->begin(), functions->end(), - Module::Function::CompareByAddress); - sort(lines_.begin(), lines_.end(), Module::Line::CompareByAddress); + std::sort(functions->begin(), functions->end(), + Module::Function::CompareByAddress); + std::sort(lines_.begin(), lines_.end(), Module::Line::CompareByAddress); // The last line that we used any piece of. We use this only for // generating warnings. @@ -852,7 +997,7 @@ void DwarfCUToModule::AssignLinesToFunctions() { // both func and line begin after CURRENT. The next transition // is the start of the next function or next line, whichever // is earliest. - assert (func || line); + assert(func || line); if (func && line) next_transition = std::min(func->address, line->address); else if (func) @@ -910,12 +1055,14 @@ void DwarfCUToModule::Finish() { // Add our functions, which now have source lines assigned to them, // to module_. - cu_context_->file_context->module->AddFunctions(functions->begin(), - functions->end()); + cu_context_->file_context->module_->AddFunctions(functions->begin(), + functions->end()); // Ownership of the function objects has shifted from cu_context to // the Module. functions->clear(); + + cu_context_->file_context->ClearSpecifications(); } bool DwarfCUToModule::StartCompilationUnit(uint64 offset, @@ -926,8 +1073,7 @@ bool DwarfCUToModule::StartCompilationUnit(uint64 offset, return dwarf_version >= 2; } -bool DwarfCUToModule::StartRootDIE(uint64 offset, enum DwarfTag tag, - const AttributeList& attrs) { +bool DwarfCUToModule::StartRootDIE(uint64 offset, enum DwarfTag tag) { // We don't deal with partial compilation units (the only other tag // likely to be used for root DIE). return tag == dwarf2reader::DW_TAG_compile_unit; diff --git a/3rdParty/Breakpad/src/common/dwarf_cu_to_module.h b/3rdParty/Breakpad/src/common/dwarf_cu_to_module.h index ac62846..a36b82b 100644 --- a/3rdParty/Breakpad/src/common/dwarf_cu_to_module.h +++ b/3rdParty/Breakpad/src/common/dwarf_cu_to_module.h @@ -39,6 +39,8 @@ #ifndef COMMON_LINUX_DWARF_CU_TO_MODULE_H__ #define COMMON_LINUX_DWARF_CU_TO_MODULE_H__ +#include <stdint.h> + #include <string> #include "common/language.h" @@ -46,11 +48,11 @@ #include "common/dwarf/bytereader.h" #include "common/dwarf/dwarf2diehandler.h" #include "common/dwarf/dwarf2reader.h" +#include "common/scoped_ptr.h" #include "common/using_std_string.h" namespace google_breakpad { -using dwarf2reader::AttributeList; using dwarf2reader::DwarfAttribute; using dwarf2reader::DwarfForm; using dwarf2reader::DwarfLanguage; @@ -66,7 +68,6 @@ using dwarf2reader::DwarfTag; class DwarfCUToModule: public dwarf2reader::RootDIEHandler { struct FilePrivate; public: - // Information global to the DWARF-bearing file we are processing, // for use by DwarfCUToModule. Each DwarfCUToModule instance deals // with a single compilation unit within the file, but information @@ -74,40 +75,75 @@ class DwarfCUToModule: public dwarf2reader::RootDIEHandler { // for filling it in appropriately (except for the 'file_private' // field, which the constructor and destructor take care of), and // then providing it to the DwarfCUToModule instance for each - // compilation unit we process in that file. - struct FileContext { - FileContext(const string &filename_arg, Module *module_arg); + // compilation unit we process in that file. Set HANDLE_INTER_CU_REFS + // to true to handle debugging symbols with DW_FORM_ref_addr entries. + class FileContext { + public: + FileContext(const string &filename, + Module *module, + bool handle_inter_cu_refs); ~FileContext(); + // Add CONTENTS of size LENGTH to the section map as NAME. + void AddSectionToSectionMap(const string& name, + const uint8_t *contents, + uint64 length); + + // Clear the section map for testing. + void ClearSectionMapForTest(); + + const dwarf2reader::SectionMap& section_map() const; + + private: + friend class DwarfCUToModule; + + // Clears all the Specifications if HANDLE_INTER_CU_REFS_ is false. + void ClearSpecifications(); + + // Given an OFFSET and a CU that starts at COMPILATION_UNIT_START, returns + // true if this is an inter-compilation unit reference that is not being + // handled. + bool IsUnhandledInterCUReference(uint64 offset, + uint64 compilation_unit_start) const; + // The name of this file, for use in error messages. - string filename; + const string filename_; // A map of this file's sections, used for finding other DWARF // sections that the .debug_info section may refer to. - dwarf2reader::SectionMap section_map; + dwarf2reader::SectionMap section_map_; // The Module to which we're contributing definitions. - Module *module; + Module *module_; + + // True if we are handling references between compilation units. + const bool handle_inter_cu_refs_; // Inter-compilation unit data used internally by the handlers. - FilePrivate *file_private; + scoped_ptr<FilePrivate> file_private_; }; - // An abstract base class for functors that handle DWARF line data + // An abstract base class for handlers that handle DWARF line data // for DwarfCUToModule. DwarfCUToModule could certainly just use // dwarf2reader::LineInfo itself directly, but decoupling things // this way makes unit testing a little easier. - class LineToModuleFunctor { + class LineToModuleHandler { public: - LineToModuleFunctor() { } - virtual ~LineToModuleFunctor() { } + LineToModuleHandler() { } + virtual ~LineToModuleHandler() { } + + // Called at the beginning of a new compilation unit, prior to calling + // ReadProgram(). compilation_dir will indicate the path that the + // current compilation unit was compiled in, consistent with the + // DW_AT_comp_dir DIE. + virtual void StartCompilationUnit(const string& compilation_dir) = 0; // Populate MODULE and LINES with source file names and code/line // mappings, given a pointer to some DWARF line number data // PROGRAM, and an overestimate of its size. Add no zero-length // lines to LINES. - virtual void operator()(const char *program, uint64 length, - Module *module, vector<Module::Line> *lines) = 0; + virtual void ReadProgram(const uint8_t *program, uint64 length, + Module *module, vector<Module::Line> *lines) = 0; }; // The interface DwarfCUToModule uses to report warnings. The member @@ -165,9 +201,20 @@ class DwarfCUToModule: public dwarf2reader::RootDIEHandler { // link. virtual void UnnamedFunction(uint64 offset); + // __cxa_demangle() failed to demangle INPUT. + virtual void DemangleError(const string &input); + + // The DW_FORM_ref_addr at OFFSET to TARGET was not handled because + // FilePrivate did not retain the inter-CU specification data. + virtual void UnhandledInterCUReference(uint64 offset, uint64 target); + + uint64 cu_offset() const { + return cu_offset_; + } + protected: - string filename_; - uint64 cu_offset_; + const string filename_; + const uint64 cu_offset_; string cu_name_; bool printed_cu_header_; bool printed_unpaired_header_; @@ -187,7 +234,7 @@ class DwarfCUToModule: public dwarf2reader::RootDIEHandler { // unit's line number data. Use REPORTER to report problems with the // data we find. DwarfCUToModule(FileContext *file_context, - LineToModuleFunctor *line_reader, + LineToModuleHandler *line_reader, WarningReporter *reporter); ~DwarfCUToModule(); @@ -201,8 +248,7 @@ class DwarfCUToModule: public dwarf2reader::RootDIEHandler { enum DwarfForm form, const string &data); bool EndAttributes(); - DIEHandler *FindChildHandler(uint64 offset, enum DwarfTag tag, - const AttributeList &attrs); + DIEHandler *FindChildHandler(uint64 offset, enum DwarfTag tag); // Assign all our source Lines to the Functions that cover their // addresses, and then add them to module_. @@ -211,17 +257,14 @@ class DwarfCUToModule: public dwarf2reader::RootDIEHandler { bool StartCompilationUnit(uint64 offset, uint8 address_size, uint8 offset_size, uint64 cu_length, uint8 dwarf_version); - bool StartRootDIE(uint64 offset, enum DwarfTag tag, - const AttributeList& attrs); + bool StartRootDIE(uint64 offset, enum DwarfTag tag); private: - // Used internally by the handler. Full definitions are in // dwarf_cu_to_module.cc. - struct FilePrivate; - struct Specification; struct CUContext; struct DIEContext; + struct Specification; class GenericDIEHandler; class FuncHandler; class NamedScopeHandler; @@ -231,7 +274,7 @@ class DwarfCUToModule: public dwarf2reader::RootDIEHandler { // Set this compilation unit's source language to LANGUAGE. void SetLanguage(DwarfLanguage language); - + // Read source line information at OFFSET in the .debug_line // section. Record source files in module_, but record source lines // in lines_; we apportion them to functions in @@ -250,14 +293,14 @@ class DwarfCUToModule: public dwarf2reader::RootDIEHandler { // owned by this DwarfCUToModule: the constructor sets them, and the // destructor deletes them. - // The functor to use to handle line number data. - LineToModuleFunctor *line_reader_; + // The handler to use to handle line number data. + LineToModuleHandler *line_reader_; // This compilation unit's context. - CUContext *cu_context_; + scoped_ptr<CUContext> cu_context_; // A context for our children. - DIEContext *child_context_; + scoped_ptr<DIEContext> child_context_; // True if this compilation unit has source line information. bool has_source_line_info_; @@ -272,6 +315,6 @@ class DwarfCUToModule: public dwarf2reader::RootDIEHandler { vector<Module::Line> lines_; }; -} // namespace google_breakpad +} // namespace google_breakpad #endif // COMMON_LINUX_DWARF_CU_TO_MODULE_H__ diff --git a/3rdParty/Breakpad/src/common/dwarf_cu_to_module_unittest.cc b/3rdParty/Breakpad/src/common/dwarf_cu_to_module_unittest.cc new file mode 100644 index 0000000..2ce4a60 --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf_cu_to_module_unittest.cc @@ -0,0 +1,1852 @@ +// Copyright (c) 2010 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// dwarf_cu_to_module.cc: Unit tests for google_breakpad::DwarfCUToModule. + +#include <stdint.h> + +#include <string> +#include <utility> +#include <vector> + +#include "breakpad_googletest_includes.h" +#include "common/dwarf_cu_to_module.h" +#include "common/using_std_string.h" + +using std::make_pair; +using std::vector; + +using dwarf2reader::DIEHandler; +using dwarf2reader::DwarfTag; +using dwarf2reader::DwarfAttribute; +using dwarf2reader::DwarfForm; +using dwarf2reader::DwarfInline; +using dwarf2reader::RootDIEHandler; +using google_breakpad::DwarfCUToModule; +using google_breakpad::Module; + +using ::testing::_; +using ::testing::AtMost; +using ::testing::Invoke; +using ::testing::Return; +using ::testing::Test; +using ::testing::TestWithParam; +using ::testing::Values; +using ::testing::ValuesIn; + +// Mock classes. + +class MockLineToModuleHandler: public DwarfCUToModule::LineToModuleHandler { + public: + MOCK_METHOD1(StartCompilationUnit, void(const string& compilation_dir)); + MOCK_METHOD4(ReadProgram, void(const uint8_t *program, uint64 length, + Module *module, vector<Module::Line> *lines)); +}; + +class MockWarningReporter: public DwarfCUToModule::WarningReporter { + public: + MockWarningReporter(const string &filename, uint64 cu_offset) + : DwarfCUToModule::WarningReporter(filename, cu_offset) { } + MOCK_METHOD1(SetCUName, void(const string &name)); + MOCK_METHOD2(UnknownSpecification, void(uint64 offset, uint64 target)); + MOCK_METHOD2(UnknownAbstractOrigin, void(uint64 offset, uint64 target)); + MOCK_METHOD1(MissingSection, void(const string §ion_name)); + MOCK_METHOD1(BadLineInfoOffset, void(uint64 offset)); + MOCK_METHOD1(UncoveredFunction, void(const Module::Function &function)); + MOCK_METHOD1(UncoveredLine, void(const Module::Line &line)); + MOCK_METHOD1(UnnamedFunction, void(uint64 offset)); + MOCK_METHOD1(DemangleError, void(const string &input)); + MOCK_METHOD2(UnhandledInterCUReference, void(uint64 offset, uint64 target)); +}; + +// A fixture class including all the objects needed to handle a +// compilation unit, and their entourage. It includes member functions +// for doing common kinds of setup and tests. +class CUFixtureBase { + public: + // If we have: + // + // vector<Module::Line> lines; + // AppendLinesFunctor appender(lines); + // + // then doing: + // + // appender(line_program, length, module, line_vector); + // + // will append lines to the end of line_vector. We can use this with + // MockLineToModuleHandler like this: + // + // MockLineToModuleHandler l2m; + // EXPECT_CALL(l2m, ReadProgram(_,_,_,_)) + // .WillOnce(DoAll(Invoke(appender), Return())); + // + // in which case calling l2m with some line vector will append lines. + class AppendLinesFunctor { + public: + explicit AppendLinesFunctor( + const vector<Module::Line> *lines) : lines_(lines) { } + void operator()(const uint8_t *program, uint64 length, + Module *module, vector<Module::Line> *lines) { + lines->insert(lines->end(), lines_->begin(), lines_->end()); + } + private: + const vector<Module::Line> *lines_; + }; + + CUFixtureBase() + : module_("module-name", "module-os", "module-arch", "module-id"), + file_context_("dwarf-filename", &module_, true), + language_(dwarf2reader::DW_LANG_none), + language_signed_(false), + appender_(&lines_), + reporter_("dwarf-filename", 0xcf8f9bb6443d29b5LL), + root_handler_(&file_context_, &line_reader_, &reporter_), + functions_filled_(false) { + // By default, expect no warnings to be reported, and expect the + // compilation unit's name to be provided. The test can override + // these expectations. + EXPECT_CALL(reporter_, SetCUName("compilation-unit-name")).Times(1); + EXPECT_CALL(reporter_, UnknownSpecification(_, _)).Times(0); + EXPECT_CALL(reporter_, UnknownAbstractOrigin(_, _)).Times(0); + EXPECT_CALL(reporter_, MissingSection(_)).Times(0); + EXPECT_CALL(reporter_, BadLineInfoOffset(_)).Times(0); + EXPECT_CALL(reporter_, UncoveredFunction(_)).Times(0); + EXPECT_CALL(reporter_, UncoveredLine(_)).Times(0); + EXPECT_CALL(reporter_, UnnamedFunction(_)).Times(0); + EXPECT_CALL(reporter_, UnhandledInterCUReference(_, _)).Times(0); + + // By default, expect the line program reader not to be invoked. We + // may override this in StartCU. + EXPECT_CALL(line_reader_, StartCompilationUnit(_)).Times(0); + EXPECT_CALL(line_reader_, ReadProgram(_,_,_,_)).Times(0); + + // The handler will consult this section map to decide what to + // pass to our line reader. + file_context_.AddSectionToSectionMap(".debug_line", + dummy_line_program_, + dummy_line_size_); + } + + // Add a line with the given address, size, filename, and line + // number to the end of the statement list the handler will receive + // when it invokes its LineToModuleHandler. Call this before calling + // StartCU. + void PushLine(Module::Address address, Module::Address size, + const string &filename, int line_number); + + // Use LANGUAGE for the compilation unit. More precisely, arrange + // for StartCU to pass the compilation unit's root DIE a + // DW_AT_language attribute whose value is LANGUAGE. + void SetLanguage(dwarf2reader::DwarfLanguage language) { + language_ = language; + } + + // If SIGNED true, have StartCU report DW_AT_language as a signed + // attribute; if false, have it report it as unsigned. + void SetLanguageSigned(bool is_signed) { language_signed_ = is_signed; } + + // Call the handler this.root_handler_'s StartCompilationUnit and + // StartRootDIE member functions, passing it appropriate attributes as + // determined by prior calls to PushLine and SetLanguage. Leave + // this.root_handler_ ready to hear about children: call + // this.root_handler_.EndAttributes, but not this.root_handler_.Finish. + void StartCU(); + + // Have HANDLER process some strange attribute/form/value triples. + void ProcessStrangeAttributes(dwarf2reader::DIEHandler *handler); + + // Start a child DIE of PARENT with the given tag and name. Leave + // the handler ready to hear about children: call EndAttributes, but + // not Finish. + DIEHandler *StartNamedDIE(DIEHandler *parent, DwarfTag tag, + const string &name); + + // Start a child DIE of PARENT with the given tag and a + // DW_AT_specification attribute whose value is SPECIFICATION. Leave + // the handler ready to hear about children: call EndAttributes, but + // not Finish. If NAME is non-zero, use it as the DW_AT_name + // attribute. + DIEHandler *StartSpecifiedDIE(DIEHandler *parent, DwarfTag tag, + uint64 specification, const char *name = NULL); + + // Define a function as a child of PARENT with the given name, address, and + // size. If high_pc_form is DW_FORM_addr then the DW_AT_high_pc attribute + // will be written as an address; otherwise it will be written as the + // function's size. Call EndAttributes and Finish; one cannot define + // children of the defined function's DIE. + void DefineFunction(DIEHandler *parent, const string &name, + Module::Address address, Module::Address size, + const char* mangled_name, + DwarfForm high_pc_form = dwarf2reader::DW_FORM_addr); + + // Create a declaration DIE as a child of PARENT with the given + // offset, tag and name. If NAME is the empty string, don't provide + // a DW_AT_name attribute. Call EndAttributes and Finish. + void DeclarationDIE(DIEHandler *parent, uint64 offset, + DwarfTag tag, const string &name, + const string &mangled_name); + + // Create a definition DIE as a child of PARENT with the given tag + // that refers to the declaration DIE at offset SPECIFICATION as its + // specification. If NAME is non-empty, pass it as the DW_AT_name + // attribute. If SIZE is non-zero, record ADDRESS and SIZE as + // low_pc/high_pc attributes. + void DefinitionDIE(DIEHandler *parent, DwarfTag tag, + uint64 specification, const string &name, + Module::Address address = 0, Module::Address size = 0); + + // Create an inline DW_TAG_subprogram DIE as a child of PARENT. If + // SPECIFICATION is non-zero, then the DIE refers to the declaration DIE at + // offset SPECIFICATION as its specification. If Name is non-empty, pass it + // as the DW_AT_name attribute. + void AbstractInstanceDIE(DIEHandler *parent, uint64 offset, + DwarfInline type, uint64 specification, + const string &name, + DwarfForm form = dwarf2reader::DW_FORM_data1); + + // Create a DW_TAG_subprogram DIE as a child of PARENT that refers to + // ORIGIN in its DW_AT_abstract_origin attribute. If NAME is the empty + // string, don't provide a DW_AT_name attribute. + void DefineInlineInstanceDIE(DIEHandler *parent, const string &name, + uint64 origin, Module::Address address, + Module::Address size); + + // The following Test* functions should be called after calling + // this.root_handler_.Finish. After that point, no further calls + // should be made on the handler. + + // Test that the number of functions defined in the module this.module_ is + // equal to EXPECTED. + void TestFunctionCount(size_t expected); + + // Test that the I'th function (ordered by address) in the module + // this.module_ has the given name, address, and size, and that its + // parameter size is zero. + void TestFunction(int i, const string &name, + Module::Address address, Module::Address size); + + // Test that the number of source lines owned by the I'th function + // in the module this.module_ is equal to EXPECTED. + void TestLineCount(int i, size_t expected); + + // Test that the J'th line (ordered by address) of the I'th function + // (again, by address) has the given address, size, filename, and + // line number. + void TestLine(int i, int j, Module::Address address, Module::Address size, + const string &filename, int number); + + // Actual objects under test. + Module module_; + DwarfCUToModule::FileContext file_context_; + + // If this is not DW_LANG_none, we'll pass it as a DW_AT_language + // attribute to the compilation unit. This defaults to DW_LANG_none. + dwarf2reader::DwarfLanguage language_; + + // If this is true, report DW_AT_language as a signed value; if false, + // report it as an unsigned value. + bool language_signed_; + + // If this is not empty, we'll give the CU a DW_AT_comp_dir attribute that + // indicates the path that this compilation unit was compiled in. + string compilation_dir_; + + // If this is not empty, we'll give the CU a DW_AT_stmt_list + // attribute that, when passed to line_reader_, adds these lines to the + // provided lines array. + vector<Module::Line> lines_; + + // Mock line program reader. + MockLineToModuleHandler line_reader_; + AppendLinesFunctor appender_; + static const uint8_t dummy_line_program_[]; + static const size_t dummy_line_size_; + + MockWarningReporter reporter_; + DwarfCUToModule root_handler_; + + private: + // Fill functions_, if we haven't already. + void FillFunctions(); + + // If functions_filled_ is true, this is a table of functions we've + // extracted from module_, sorted by address. + vector<Module::Function *> functions_; + // True if we have filled the above vector with this.module_'s function list. + bool functions_filled_; +}; + +const uint8_t CUFixtureBase::dummy_line_program_[] = "lots of fun data"; +const size_t CUFixtureBase::dummy_line_size_ = + sizeof(CUFixtureBase::dummy_line_program_); + +void CUFixtureBase::PushLine(Module::Address address, Module::Address size, + const string &filename, int line_number) { + Module::Line l; + l.address = address; + l.size = size; + l.file = module_.FindFile(filename); + l.number = line_number; + lines_.push_back(l); +} + +void CUFixtureBase::StartCU() { + if (!compilation_dir_.empty()) + EXPECT_CALL(line_reader_, + StartCompilationUnit(compilation_dir_)).Times(1); + + // If we have lines, make the line reader expect to be invoked at + // most once. (Hey, if the handler can pass its tests without + // bothering to read the line number data, that's great.) + // Have it add the lines passed to PushLine. Otherwise, leave the + // initial expectation (no calls) in force. + if (!lines_.empty()) + EXPECT_CALL(line_reader_, + ReadProgram(&dummy_line_program_[0], dummy_line_size_, + &module_, _)) + .Times(AtMost(1)) + .WillOnce(DoAll(Invoke(appender_), Return())); + + ASSERT_TRUE(root_handler_ + .StartCompilationUnit(0x51182ec307610b51ULL, 0x81, 0x44, + 0x4241b4f33720dd5cULL, 3)); + { + ASSERT_TRUE(root_handler_.StartRootDIE(0x02e56bfbda9e7337ULL, + dwarf2reader::DW_TAG_compile_unit)); + } + root_handler_.ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + "compilation-unit-name"); + if (!compilation_dir_.empty()) + root_handler_.ProcessAttributeString(dwarf2reader::DW_AT_comp_dir, + dwarf2reader::DW_FORM_strp, + compilation_dir_); + if (!lines_.empty()) + root_handler_.ProcessAttributeUnsigned(dwarf2reader::DW_AT_stmt_list, + dwarf2reader::DW_FORM_ref4, + 0); + if (language_ != dwarf2reader::DW_LANG_none) { + if (language_signed_) + root_handler_.ProcessAttributeSigned(dwarf2reader::DW_AT_language, + dwarf2reader::DW_FORM_sdata, + language_); + else + root_handler_.ProcessAttributeUnsigned(dwarf2reader::DW_AT_language, + dwarf2reader::DW_FORM_udata, + language_); + } + ASSERT_TRUE(root_handler_.EndAttributes()); +} + +void CUFixtureBase::ProcessStrangeAttributes( + dwarf2reader::DIEHandler *handler) { + handler->ProcessAttributeUnsigned((DwarfAttribute) 0xf560dead, + (DwarfForm) 0x4106e4db, + 0xa592571997facda1ULL); + handler->ProcessAttributeSigned((DwarfAttribute) 0x85380095, + (DwarfForm) 0x0f16fe87, + 0x12602a4e3bf1f446LL); + handler->ProcessAttributeReference((DwarfAttribute) 0xf7f7480f, + (DwarfForm) 0x829e038a, + 0x50fddef44734fdecULL); + static const uint8_t buffer[10] = "frobynode"; + handler->ProcessAttributeBuffer((DwarfAttribute) 0xa55ffb51, + (DwarfForm) 0x2f43b041, + buffer, sizeof(buffer)); + handler->ProcessAttributeString((DwarfAttribute) 0x2f43b041, + (DwarfForm) 0x895ffa23, + "strange string"); +} + +DIEHandler *CUFixtureBase::StartNamedDIE(DIEHandler *parent, + DwarfTag tag, + const string &name) { + dwarf2reader::DIEHandler *handler + = parent->FindChildHandler(0x8f4c783c0467c989ULL, tag); + if (!handler) + return NULL; + handler->ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + name); + ProcessStrangeAttributes(handler); + if (!handler->EndAttributes()) { + handler->Finish(); + delete handler; + return NULL; + } + + return handler; +} + +DIEHandler *CUFixtureBase::StartSpecifiedDIE(DIEHandler *parent, + DwarfTag tag, + uint64 specification, + const char *name) { + dwarf2reader::DIEHandler *handler + = parent->FindChildHandler(0x8f4c783c0467c989ULL, tag); + if (!handler) + return NULL; + if (name) + handler->ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + name); + handler->ProcessAttributeReference(dwarf2reader::DW_AT_specification, + dwarf2reader::DW_FORM_ref4, + specification); + if (!handler->EndAttributes()) { + handler->Finish(); + delete handler; + return NULL; + } + + return handler; +} + +void CUFixtureBase::DefineFunction(dwarf2reader::DIEHandler *parent, + const string &name, Module::Address address, + Module::Address size, + const char* mangled_name, + DwarfForm high_pc_form) { + dwarf2reader::DIEHandler *func + = parent->FindChildHandler(0xe34797c7e68590a8LL, + dwarf2reader::DW_TAG_subprogram); + ASSERT_TRUE(func != NULL); + func->ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + name); + func->ProcessAttributeUnsigned(dwarf2reader::DW_AT_low_pc, + dwarf2reader::DW_FORM_addr, + address); + + Module::Address high_pc = size; + if (high_pc_form == dwarf2reader::DW_FORM_addr) { + high_pc += address; + } + func->ProcessAttributeUnsigned(dwarf2reader::DW_AT_high_pc, + high_pc_form, + high_pc); + + if (mangled_name) + func->ProcessAttributeString(dwarf2reader::DW_AT_MIPS_linkage_name, + dwarf2reader::DW_FORM_strp, + mangled_name); + + ProcessStrangeAttributes(func); + EXPECT_TRUE(func->EndAttributes()); + func->Finish(); + delete func; +} + +void CUFixtureBase::DeclarationDIE(DIEHandler *parent, uint64 offset, + DwarfTag tag, + const string &name, + const string &mangled_name) { + dwarf2reader::DIEHandler *die = parent->FindChildHandler(offset, tag); + ASSERT_TRUE(die != NULL); + if (!name.empty()) + die->ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + name); + if (!mangled_name.empty()) + die->ProcessAttributeString(dwarf2reader::DW_AT_MIPS_linkage_name, + dwarf2reader::DW_FORM_strp, + mangled_name); + + die->ProcessAttributeUnsigned(dwarf2reader::DW_AT_declaration, + dwarf2reader::DW_FORM_flag, + 1); + EXPECT_TRUE(die->EndAttributes()); + die->Finish(); + delete die; +} + +void CUFixtureBase::DefinitionDIE(DIEHandler *parent, + DwarfTag tag, + uint64 specification, + const string &name, + Module::Address address, + Module::Address size) { + dwarf2reader::DIEHandler *die + = parent->FindChildHandler(0x6ccfea031a9e6cc9ULL, tag); + ASSERT_TRUE(die != NULL); + die->ProcessAttributeReference(dwarf2reader::DW_AT_specification, + dwarf2reader::DW_FORM_ref4, + specification); + if (!name.empty()) + die->ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + name); + if (size) { + die->ProcessAttributeUnsigned(dwarf2reader::DW_AT_low_pc, + dwarf2reader::DW_FORM_addr, + address); + die->ProcessAttributeUnsigned(dwarf2reader::DW_AT_high_pc, + dwarf2reader::DW_FORM_addr, + address + size); + } + EXPECT_TRUE(die->EndAttributes()); + die->Finish(); + delete die; +} + +void CUFixtureBase::AbstractInstanceDIE(DIEHandler *parent, + uint64 offset, + DwarfInline type, + uint64 specification, + const string &name, + DwarfForm form) { + dwarf2reader::DIEHandler *die + = parent->FindChildHandler(offset, dwarf2reader::DW_TAG_subprogram); + ASSERT_TRUE(die != NULL); + if (specification != 0ULL) + die->ProcessAttributeReference(dwarf2reader::DW_AT_specification, + dwarf2reader::DW_FORM_ref4, + specification); + if (form == dwarf2reader::DW_FORM_sdata) { + die->ProcessAttributeSigned(dwarf2reader::DW_AT_inline, form, type); + } else { + die->ProcessAttributeUnsigned(dwarf2reader::DW_AT_inline, form, type); + } + if (!name.empty()) + die->ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + name); + + EXPECT_TRUE(die->EndAttributes()); + die->Finish(); + delete die; +} + +void CUFixtureBase::DefineInlineInstanceDIE(DIEHandler *parent, + const string &name, + uint64 origin, + Module::Address address, + Module::Address size) { + dwarf2reader::DIEHandler *func + = parent->FindChildHandler(0x11c70f94c6e87ccdLL, + dwarf2reader::DW_TAG_subprogram); + ASSERT_TRUE(func != NULL); + if (!name.empty()) { + func->ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + name); + } + func->ProcessAttributeUnsigned(dwarf2reader::DW_AT_low_pc, + dwarf2reader::DW_FORM_addr, + address); + func->ProcessAttributeUnsigned(dwarf2reader::DW_AT_high_pc, + dwarf2reader::DW_FORM_addr, + address + size); + func->ProcessAttributeReference(dwarf2reader::DW_AT_abstract_origin, + dwarf2reader::DW_FORM_ref4, + origin); + ProcessStrangeAttributes(func); + EXPECT_TRUE(func->EndAttributes()); + func->Finish(); + delete func; +} + +void CUFixtureBase::FillFunctions() { + if (functions_filled_) + return; + module_.GetFunctions(&functions_, functions_.end()); + sort(functions_.begin(), functions_.end(), + Module::Function::CompareByAddress); + functions_filled_ = true; +} + +void CUFixtureBase::TestFunctionCount(size_t expected) { + FillFunctions(); + ASSERT_EQ(expected, functions_.size()); +} + +void CUFixtureBase::TestFunction(int i, const string &name, + Module::Address address, + Module::Address size) { + FillFunctions(); + ASSERT_LT((size_t) i, functions_.size()); + + Module::Function *function = functions_[i]; + EXPECT_EQ(name, function->name); + EXPECT_EQ(address, function->address); + EXPECT_EQ(size, function->size); + EXPECT_EQ(0U, function->parameter_size); +} + +void CUFixtureBase::TestLineCount(int i, size_t expected) { + FillFunctions(); + ASSERT_LT((size_t) i, functions_.size()); + + ASSERT_EQ(expected, functions_[i]->lines.size()); +} + +void CUFixtureBase::TestLine(int i, int j, + Module::Address address, Module::Address size, + const string &filename, int number) { + FillFunctions(); + ASSERT_LT((size_t) i, functions_.size()); + ASSERT_LT((size_t) j, functions_[i]->lines.size()); + + Module::Line *line = &functions_[i]->lines[j]; + EXPECT_EQ(address, line->address); + EXPECT_EQ(size, line->size); + EXPECT_EQ(filename, line->file->name.c_str()); + EXPECT_EQ(number, line->number); +} + +// Include caller locations for our test subroutines. +#define TRACE(call) do { SCOPED_TRACE("called from here"); call; } while (0) +#define PushLine(a,b,c,d) TRACE(PushLine((a),(b),(c),(d))) +#define SetLanguage(a) TRACE(SetLanguage(a)) +#define StartCU() TRACE(StartCU()) +#define DefineFunction(a,b,c,d,e) TRACE(DefineFunction((a),(b),(c),(d),(e))) +// (DefineFunction) instead of DefineFunction to avoid macro expansion. +#define DefineFunction6(a,b,c,d,e,f) \ + TRACE((DefineFunction)((a),(b),(c),(d),(e),(f))) +#define DeclarationDIE(a,b,c,d,e) TRACE(DeclarationDIE((a),(b),(c),(d),(e))) +#define DefinitionDIE(a,b,c,d,e,f) \ + TRACE(DefinitionDIE((a),(b),(c),(d),(e),(f))) +#define TestFunctionCount(a) TRACE(TestFunctionCount(a)) +#define TestFunction(a,b,c,d) TRACE(TestFunction((a),(b),(c),(d))) +#define TestLineCount(a,b) TRACE(TestLineCount((a),(b))) +#define TestLine(a,b,c,d,e,f) TRACE(TestLine((a),(b),(c),(d),(e),(f))) + +class SimpleCU: public CUFixtureBase, public Test { +}; + +TEST_F(SimpleCU, CompilationDir) { + compilation_dir_ = "/src/build/"; + + StartCU(); + root_handler_.Finish(); +} + +TEST_F(SimpleCU, OneFunc) { + PushLine(0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL, "line-file", 246571772); + + StartCU(); + DefineFunction(&root_handler_, "function1", + 0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL, NULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "function1", 0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL); + TestLineCount(0, 1); + TestLine(0, 0, 0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL, "line-file", + 246571772); +} + +// As above, only DW_AT_high_pc is a length rather than an address. +TEST_F(SimpleCU, OneFuncHighPcIsLength) { + PushLine(0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL, "line-file", 246571772); + + StartCU(); + DefineFunction6(&root_handler_, "function1", + 0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL, NULL, + dwarf2reader::DW_FORM_udata); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "function1", 0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL); + TestLineCount(0, 1); + TestLine(0, 0, 0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL, "line-file", + 246571772); +} + +TEST_F(SimpleCU, MangledName) { + PushLine(0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL, "line-file", 246571772); + + StartCU(); + DefineFunction(&root_handler_, "function1", + 0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL, "_ZN1n1fEi"); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "n::f(int)", 0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL); +} + +TEST_F(SimpleCU, IrrelevantRootChildren) { + StartCU(); + EXPECT_FALSE(root_handler_ + .FindChildHandler(0x7db32bff4e2dcfb1ULL, + dwarf2reader::DW_TAG_lexical_block)); +} + +TEST_F(SimpleCU, IrrelevantNamedScopeChildren) { + StartCU(); + DIEHandler *class_A_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, "class_A"); + EXPECT_TRUE(class_A_handler != NULL); + EXPECT_FALSE(class_A_handler + ->FindChildHandler(0x02e55999b865e4e9ULL, + dwarf2reader::DW_TAG_lexical_block)); + delete class_A_handler; +} + +// Verify that FileContexts can safely be deleted unused. +TEST_F(SimpleCU, UnusedFileContext) { + Module m("module-name", "module-os", "module-arch", "module-id"); + DwarfCUToModule::FileContext fc("dwarf-filename", &m, true); + + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); +} + +TEST_F(SimpleCU, InlineFunction) { + PushLine(0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL, "line-file", 75173118); + + StartCU(); + AbstractInstanceDIE(&root_handler_, 0x1e8dac5d507ed7abULL, + dwarf2reader::DW_INL_inlined, 0, "inline-name"); + DefineInlineInstanceDIE(&root_handler_, "", 0x1e8dac5d507ed7abULL, + 0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "inline-name", + 0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL); +} + +TEST_F(SimpleCU, InlineFunctionSignedAttribute) { + PushLine(0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL, "line-file", 75173118); + + StartCU(); + AbstractInstanceDIE(&root_handler_, 0x1e8dac5d507ed7abULL, + dwarf2reader::DW_INL_inlined, 0, "inline-name", + dwarf2reader::DW_FORM_sdata); + DefineInlineInstanceDIE(&root_handler_, "", 0x1e8dac5d507ed7abULL, + 0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "inline-name", + 0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL); +} + +// Any DIE with an DW_AT_inline attribute can be cited by +// DW_AT_abstract_origin attributes --- even if the value of the +// DW_AT_inline attribute is DW_INL_not_inlined. +TEST_F(SimpleCU, AbstractOriginNotInlined) { + PushLine(0x2805c4531be6ca0eULL, 0x686b52155a8d4d2cULL, "line-file", 6111581); + + StartCU(); + AbstractInstanceDIE(&root_handler_, 0x93e9cdad52826b39ULL, + dwarf2reader::DW_INL_not_inlined, 0, "abstract-instance"); + DefineInlineInstanceDIE(&root_handler_, "", 0x93e9cdad52826b39ULL, + 0x2805c4531be6ca0eULL, 0x686b52155a8d4d2cULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "abstract-instance", + 0x2805c4531be6ca0eULL, 0x686b52155a8d4d2cULL); +} + +TEST_F(SimpleCU, UnknownAbstractOrigin) { + EXPECT_CALL(reporter_, UnknownAbstractOrigin(_, 1ULL)).WillOnce(Return()); + EXPECT_CALL(reporter_, UnnamedFunction(0x11c70f94c6e87ccdLL)) + .WillOnce(Return()); + PushLine(0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL, "line-file", 75173118); + + StartCU(); + AbstractInstanceDIE(&root_handler_, 0x1e8dac5d507ed7abULL, + dwarf2reader::DW_INL_inlined, 0, "inline-name"); + DefineInlineInstanceDIE(&root_handler_, "", 1ULL, + 0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "<name omitted>", + 0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL); +} + +TEST_F(SimpleCU, UnnamedFunction) { + EXPECT_CALL(reporter_, UnnamedFunction(0xe34797c7e68590a8LL)) + .WillOnce(Return()); + PushLine(0x72b80e41a0ac1d40ULL, 0x537174f231ee181cULL, "line-file", 14044850); + + StartCU(); + DefineFunction(&root_handler_, "", + 0x72b80e41a0ac1d40ULL, 0x537174f231ee181cULL, NULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "<name omitted>", + 0x72b80e41a0ac1d40ULL, 0x537174f231ee181cULL); +} + +// An address range. +struct Range { + Module::Address start, end; +}; + +// Test data for pairing functions and lines. +struct Situation { + // Two function intervals, and two line intervals. + Range functions[2], lines[2]; + + // The number of lines we expect to be assigned to each of the + // functions, and the address ranges. + int paired_count[2]; + Range paired[2][2]; + + // The number of functions that are not entirely covered by lines, + // and vice versa. + int uncovered_functions, uncovered_lines; +}; + +#define PAIRING(func1_start, func1_end, func2_start, func2_end, \ + line1_start, line1_end, line2_start, line2_end, \ + func1_num_lines, func2_num_lines, \ + func1_line1_start, func1_line1_end, \ + func1_line2_start, func1_line2_end, \ + func2_line1_start, func2_line1_end, \ + func2_line2_start, func2_line2_end, \ + uncovered_functions, uncovered_lines) \ + { { { func1_start, func1_end }, { func2_start, func2_end } }, \ + { { line1_start, line1_end }, { line2_start, line2_end } }, \ + { func1_num_lines, func2_num_lines }, \ + { { { func1_line1_start, func1_line1_end }, \ + { func1_line2_start, func1_line2_end } }, \ + { { func2_line1_start, func2_line1_end }, \ + { func2_line2_start, func2_line2_end } } }, \ + uncovered_functions, uncovered_lines }, + +Situation situations[] = { +#include "common/testdata/func-line-pairing.h" +}; + +#undef PAIRING + +class FuncLinePairing: public CUFixtureBase, + public TestWithParam<Situation> { }; + +INSTANTIATE_TEST_CASE_P(AllSituations, FuncLinePairing, + ValuesIn(situations)); + +TEST_P(FuncLinePairing, Pairing) { + const Situation &s = GetParam(); + PushLine(s.lines[0].start, + s.lines[0].end - s.lines[0].start, + "line-file", 67636963); + PushLine(s.lines[1].start, + s.lines[1].end - s.lines[1].start, + "line-file", 67636963); + if (s.uncovered_functions) + EXPECT_CALL(reporter_, UncoveredFunction(_)) + .Times(s.uncovered_functions) + .WillRepeatedly(Return()); + if (s.uncovered_lines) + EXPECT_CALL(reporter_, UncoveredLine(_)) + .Times(s.uncovered_lines) + .WillRepeatedly(Return()); + + StartCU(); + DefineFunction(&root_handler_, "function1", + s.functions[0].start, + s.functions[0].end - s.functions[0].start, NULL); + DefineFunction(&root_handler_, "function2", + s.functions[1].start, + s.functions[1].end - s.functions[1].start, NULL); + root_handler_.Finish(); + + TestFunctionCount(2); + TestFunction(0, "function1", + s.functions[0].start, + s.functions[0].end - s.functions[0].start); + TestLineCount(0, s.paired_count[0]); + for (int i = 0; i < s.paired_count[0]; i++) + TestLine(0, i, s.paired[0][i].start, + s.paired[0][i].end - s.paired[0][i].start, + "line-file", 67636963); + TestFunction(1, "function2", + s.functions[1].start, + s.functions[1].end - s.functions[1].start); + TestLineCount(1, s.paired_count[1]); + for (int i = 0; i < s.paired_count[1]; i++) + TestLine(1, i, s.paired[1][i].start, + s.paired[1][i].end - s.paired[1][i].start, + "line-file", 67636963); +} + +TEST_F(FuncLinePairing, EmptyCU) { + StartCU(); + root_handler_.Finish(); + + TestFunctionCount(0); +} + +TEST_F(FuncLinePairing, LinesNoFuncs) { + PushLine(40, 2, "line-file", 82485646); + EXPECT_CALL(reporter_, UncoveredLine(_)).WillOnce(Return()); + + StartCU(); + root_handler_.Finish(); + + TestFunctionCount(0); +} + +TEST_F(FuncLinePairing, FuncsNoLines) { + EXPECT_CALL(reporter_, UncoveredFunction(_)).WillOnce(Return()); + + StartCU(); + DefineFunction(&root_handler_, "function1", 0x127da12ffcf5c51fULL, 0x1000U, + NULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "function1", 0x127da12ffcf5c51fULL, 0x1000U); +} + +TEST_F(FuncLinePairing, GapThenFunction) { + PushLine(20, 2, "line-file-2", 174314698); + PushLine(10, 2, "line-file-1", 263008005); + + StartCU(); + DefineFunction(&root_handler_, "function1", 10, 2, NULL); + DefineFunction(&root_handler_, "function2", 20, 2, NULL); + root_handler_.Finish(); + + TestFunctionCount(2); + TestFunction(0, "function1", 10, 2); + TestLineCount(0, 1); + TestLine(0, 0, 10, 2, "line-file-1", 263008005); + TestFunction(1, "function2", 20, 2); + TestLineCount(1, 1); + TestLine(1, 0, 20, 2, "line-file-2", 174314698); +} + +// If GCC emits padding after one function to align the start of +// the next, then it will attribute the padding instructions to +// the last source line of function (to reduce the size of the +// line number info), but omit it from the DW_AT_{low,high}_pc +// range given in .debug_info (since it costs nothing to be +// precise there). If we did use at least some of the line +// we're about to skip, then assume this is what happened, and +// don't warn. +TEST_F(FuncLinePairing, GCCAlignmentStretch) { + PushLine(10, 10, "line-file", 63351048); + PushLine(20, 10, "line-file", 61661044); + + StartCU(); + DefineFunction(&root_handler_, "function1", 10, 5, NULL); + // five-byte gap between functions, covered by line 63351048. + // This should not elicit a warning. + DefineFunction(&root_handler_, "function2", 20, 10, NULL); + root_handler_.Finish(); + + TestFunctionCount(2); + TestFunction(0, "function1", 10, 5); + TestLineCount(0, 1); + TestLine(0, 0, 10, 5, "line-file", 63351048); + TestFunction(1, "function2", 20, 10); + TestLineCount(1, 1); + TestLine(1, 0, 20, 10, "line-file", 61661044); +} + +// Unfortunately, neither the DWARF parser's handler interface nor the +// DIEHandler interface is capable of expressing a function that abuts +// the end of the address space: the high_pc value looks like zero. + +TEST_F(FuncLinePairing, LineAtEndOfAddressSpace) { + PushLine(0xfffffffffffffff0ULL, 16, "line-file", 63351048); + EXPECT_CALL(reporter_, UncoveredLine(_)).WillOnce(Return()); + + StartCU(); + DefineFunction(&root_handler_, "function1", 0xfffffffffffffff0ULL, 6, NULL); + DefineFunction(&root_handler_, "function2", 0xfffffffffffffffaULL, 5, NULL); + root_handler_.Finish(); + + TestFunctionCount(2); + TestFunction(0, "function1", 0xfffffffffffffff0ULL, 6); + TestLineCount(0, 1); + TestLine(0, 0, 0xfffffffffffffff0ULL, 6, "line-file", 63351048); + TestFunction(1, "function2", 0xfffffffffffffffaULL, 5); + TestLineCount(1, 1); + TestLine(1, 0, 0xfffffffffffffffaULL, 5, "line-file", 63351048); +} + +// A function with more than one uncovered area should only be warned +// about once. +TEST_F(FuncLinePairing, WarnOnceFunc) { + PushLine(20, 1, "line-file-2", 262951329); + PushLine(11, 1, "line-file-1", 219964021); + EXPECT_CALL(reporter_, UncoveredFunction(_)).WillOnce(Return()); + + StartCU(); + DefineFunction(&root_handler_, "function", 10, 11, NULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "function", 10, 11); + TestLineCount(0, 2); + TestLine(0, 0, 11, 1, "line-file-1", 219964021); + TestLine(0, 1, 20, 1, "line-file-2", 262951329); +} + +// A line with more than one uncovered area should only be warned +// about once. +TEST_F(FuncLinePairing, WarnOnceLine) { + PushLine(10, 20, "filename1", 118581871); + EXPECT_CALL(reporter_, UncoveredLine(_)).WillOnce(Return()); + + StartCU(); + DefineFunction(&root_handler_, "function1", 11, 1, NULL); + DefineFunction(&root_handler_, "function2", 13, 1, NULL); + root_handler_.Finish(); + + TestFunctionCount(2); + TestFunction(0, "function1", 11, 1); + TestLineCount(0, 1); + TestLine(0, 0, 11, 1, "filename1", 118581871); + TestFunction(1, "function2", 13, 1); + TestLineCount(1, 1); + TestLine(1, 0, 13, 1, "filename1", 118581871); +} + +class CXXQualifiedNames: public CUFixtureBase, + public TestWithParam<DwarfTag> { }; + +INSTANTIATE_TEST_CASE_P(VersusEnclosures, CXXQualifiedNames, + Values(dwarf2reader::DW_TAG_class_type, + dwarf2reader::DW_TAG_structure_type, + dwarf2reader::DW_TAG_union_type, + dwarf2reader::DW_TAG_namespace)); + +TEST_P(CXXQualifiedNames, TwoFunctions) { + DwarfTag tag = GetParam(); + + SetLanguage(dwarf2reader::DW_LANG_C_plus_plus); + PushLine(10, 1, "filename1", 69819327); + PushLine(20, 1, "filename2", 95115701); + + StartCU(); + DIEHandler *enclosure_handler = StartNamedDIE(&root_handler_, tag, + "Enclosure"); + EXPECT_TRUE(enclosure_handler != NULL); + DefineFunction(enclosure_handler, "func_B", 10, 1, NULL); + DefineFunction(enclosure_handler, "func_C", 20, 1, NULL); + enclosure_handler->Finish(); + delete enclosure_handler; + root_handler_.Finish(); + + TestFunctionCount(2); + TestFunction(0, "Enclosure::func_B", 10, 1); + TestFunction(1, "Enclosure::func_C", 20, 1); +} + +TEST_P(CXXQualifiedNames, FuncInEnclosureInNamespace) { + DwarfTag tag = GetParam(); + + SetLanguage(dwarf2reader::DW_LANG_C_plus_plus); + PushLine(10, 1, "line-file", 69819327); + + StartCU(); + DIEHandler *namespace_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_namespace, + "Namespace"); + EXPECT_TRUE(namespace_handler != NULL); + DIEHandler *enclosure_handler = StartNamedDIE(namespace_handler, tag, + "Enclosure"); + EXPECT_TRUE(enclosure_handler != NULL); + DefineFunction(enclosure_handler, "function", 10, 1, NULL); + enclosure_handler->Finish(); + delete enclosure_handler; + namespace_handler->Finish(); + delete namespace_handler; + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "Namespace::Enclosure::function", 10, 1); +} + +TEST_F(CXXQualifiedNames, FunctionInClassInStructInNamespace) { + SetLanguage(dwarf2reader::DW_LANG_C_plus_plus); + PushLine(10, 1, "filename1", 69819327); + + StartCU(); + DIEHandler *namespace_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_namespace, + "namespace_A"); + EXPECT_TRUE(namespace_handler != NULL); + DIEHandler *struct_handler + = StartNamedDIE(namespace_handler, dwarf2reader::DW_TAG_structure_type, + "struct_B"); + EXPECT_TRUE(struct_handler != NULL); + DIEHandler *class_handler + = StartNamedDIE(struct_handler, dwarf2reader::DW_TAG_class_type, + "class_C"); + DefineFunction(class_handler, "function_D", 10, 1, NULL); + class_handler->Finish(); + delete class_handler; + struct_handler->Finish(); + delete struct_handler; + namespace_handler->Finish(); + delete namespace_handler; + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "namespace_A::struct_B::class_C::function_D", 10, 1); +} + +struct LanguageAndQualifiedName { + dwarf2reader::DwarfLanguage language; + const char *name; +}; + +const LanguageAndQualifiedName LanguageAndQualifiedNameCases[] = { + { dwarf2reader::DW_LANG_none, "class_A::function_B" }, + { dwarf2reader::DW_LANG_C, "class_A::function_B" }, + { dwarf2reader::DW_LANG_C89, "class_A::function_B" }, + { dwarf2reader::DW_LANG_C99, "class_A::function_B" }, + { dwarf2reader::DW_LANG_C_plus_plus, "class_A::function_B" }, + { dwarf2reader::DW_LANG_Java, "class_A.function_B" }, + { dwarf2reader::DW_LANG_Cobol74, "class_A::function_B" }, + { dwarf2reader::DW_LANG_Mips_Assembler, NULL } +}; + +class QualifiedForLanguage + : public CUFixtureBase, + public TestWithParam<LanguageAndQualifiedName> { }; + +INSTANTIATE_TEST_CASE_P(LanguageAndQualifiedName, QualifiedForLanguage, + ValuesIn(LanguageAndQualifiedNameCases)); + +TEST_P(QualifiedForLanguage, MemberFunction) { + const LanguageAndQualifiedName ¶m = GetParam(); + + PushLine(10, 1, "line-file", 212966758); + SetLanguage(param.language); + + StartCU(); + DIEHandler *class_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + "class_A"); + DefineFunction(class_handler, "function_B", 10, 1, NULL); + class_handler->Finish(); + delete class_handler; + root_handler_.Finish(); + + if (param.name) { + TestFunctionCount(1); + TestFunction(0, param.name, 10, 1); + } else { + TestFunctionCount(0); + } +} + +TEST_P(QualifiedForLanguage, MemberFunctionSignedLanguage) { + const LanguageAndQualifiedName ¶m = GetParam(); + + PushLine(10, 1, "line-file", 212966758); + SetLanguage(param.language); + SetLanguageSigned(true); + + StartCU(); + DIEHandler *class_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + "class_A"); + DefineFunction(class_handler, "function_B", 10, 1, NULL); + class_handler->Finish(); + delete class_handler; + root_handler_.Finish(); + + if (param.name) { + TestFunctionCount(1); + TestFunction(0, param.name, 10, 1); + } else { + TestFunctionCount(0); + } +} + +class Specifications: public CUFixtureBase, public Test { }; + +TEST_F(Specifications, Function) { + PushLine(0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL, "line-file", 54883661); + + StartCU(); + DeclarationDIE(&root_handler_, 0xcd3c51b946fb1eeeLL, + dwarf2reader::DW_TAG_subprogram, "declaration-name", ""); + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0xcd3c51b946fb1eeeLL, "", + 0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "declaration-name", + 0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL); +} + +TEST_F(Specifications, MangledName) { + // Language defaults to C++, so no need to set it here. + PushLine(0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL, "line-file", 54883661); + + StartCU(); + DeclarationDIE(&root_handler_, 0xcd3c51b946fb1eeeLL, + dwarf2reader::DW_TAG_subprogram, "declaration-name", + "_ZN1C1fEi"); + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0xcd3c51b946fb1eeeLL, "", + 0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "C::f(int)", + 0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL); +} + +TEST_F(Specifications, MangledNameSwift) { + // Swift mangled names should pass through untouched. + SetLanguage(dwarf2reader::DW_LANG_Swift); + PushLine(0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL, "line-file", 54883661); + StartCU(); + const string kName = "_TFC9swifttest5Shape17simpleDescriptionfS0_FT_Si"; + DeclarationDIE(&root_handler_, 0xcd3c51b946fb1eeeLL, + dwarf2reader::DW_TAG_subprogram, "declaration-name", + kName); + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0xcd3c51b946fb1eeeLL, "", + 0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, kName, + 0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL); +} + +TEST_F(Specifications, MangledNameRust) { + SetLanguage(dwarf2reader::DW_LANG_Rust); + PushLine(0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL, "line-file", 54883661); + + StartCU(); + const string kName = "_ZN14rustc_demangle8demangle17h373defa94bffacdeE"; + DeclarationDIE(&root_handler_, 0xcd3c51b946fb1eeeLL, + dwarf2reader::DW_TAG_subprogram, "declaration-name", + kName); + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0xcd3c51b946fb1eeeLL, "", + 0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, +#ifndef HAVE_RUST_DEMANGLE + // Rust mangled names should pass through untouched if not + // using rust-demangle. + kName, +#else + // If rust-demangle is available this should be properly + // demangled. + "rustc_demangle::demangle", +#endif + 0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL); +} + +TEST_F(Specifications, MemberFunction) { + PushLine(0x3341a248634e7170ULL, 0x5f6938ee5553b953ULL, "line-file", 18116691); + + StartCU(); + DIEHandler *class_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, "class_A"); + DeclarationDIE(class_handler, 0x7d83028c431406e8ULL, + dwarf2reader::DW_TAG_subprogram, "declaration-name", ""); + class_handler->Finish(); + delete class_handler; + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0x7d83028c431406e8ULL, "", + 0x3341a248634e7170ULL, 0x5f6938ee5553b953ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "class_A::declaration-name", + 0x3341a248634e7170ULL, 0x5f6938ee5553b953ULL); +} + +// This case should gather the name from both the definition and the +// declaration's parent. +TEST_F(Specifications, FunctionDeclarationParent) { + PushLine(0x463c9ddf405be227ULL, 0x6a47774af5049680ULL, "line-file", 70254922); + + StartCU(); + { + DIEHandler *class_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + "class_A"); + ASSERT_TRUE(class_handler != NULL); + DeclarationDIE(class_handler, 0x0e0e877c8404544aULL, + dwarf2reader::DW_TAG_subprogram, "declaration-name", ""); + class_handler->Finish(); + delete class_handler; + } + + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0x0e0e877c8404544aULL, "definition-name", + 0x463c9ddf405be227ULL, 0x6a47774af5049680ULL); + + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "class_A::definition-name", + 0x463c9ddf405be227ULL, 0x6a47774af5049680ULL); +} + +// Named scopes should also gather enclosing name components from +// their declarations. +TEST_F(Specifications, NamedScopeDeclarationParent) { + PushLine(0x5d13433d0df13d00ULL, 0x48ebebe5ade2cab4ULL, "line-file", 77392604); + + StartCU(); + { + DIEHandler *space_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_namespace, + "space_A"); + ASSERT_TRUE(space_handler != NULL); + DeclarationDIE(space_handler, 0x419bb1d12f9a73a2ULL, + dwarf2reader::DW_TAG_class_type, "class-declaration-name", + ""); + space_handler->Finish(); + delete space_handler; + } + + { + DIEHandler *class_handler + = StartSpecifiedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + 0x419bb1d12f9a73a2ULL, "class-definition-name"); + ASSERT_TRUE(class_handler != NULL); + DefineFunction(class_handler, "function", + 0x5d13433d0df13d00ULL, 0x48ebebe5ade2cab4ULL, NULL); + class_handler->Finish(); + delete class_handler; + } + + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "space_A::class-definition-name::function", + 0x5d13433d0df13d00ULL, 0x48ebebe5ade2cab4ULL); +} + +// This test recreates bug 364. +TEST_F(Specifications, InlineFunction) { + PushLine(0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL, "line-file", 75173118); + + StartCU(); + DeclarationDIE(&root_handler_, 0xcd3c51b946fb1eeeLL, + dwarf2reader::DW_TAG_subprogram, "inline-name", ""); + AbstractInstanceDIE(&root_handler_, 0x1e8dac5d507ed7abULL, + dwarf2reader::DW_INL_inlined, 0xcd3c51b946fb1eeeLL, ""); + DefineInlineInstanceDIE(&root_handler_, "", 0x1e8dac5d507ed7abULL, + 0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "inline-name", + 0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL); +} + +// An inline function in a namespace should correctly derive its +// name from its abstract origin, and not just the namespace name. +TEST_F(Specifications, InlineFunctionInNamespace) { + PushLine(0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL, "line-file", 75173118); + + StartCU(); + DIEHandler* space_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_namespace, + "Namespace"); + ASSERT_TRUE(space_handler != NULL); + AbstractInstanceDIE(space_handler, 0x1e8dac5d507ed7abULL, + dwarf2reader::DW_INL_inlined, 0LL, "func-name"); + DefineInlineInstanceDIE(space_handler, "", 0x1e8dac5d507ed7abULL, + 0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL); + space_handler->Finish(); + delete space_handler; + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "Namespace::func-name", + 0x1758a0f941b71efbULL, 0x1cf154f1f545e146ULL); +} + +// Check name construction for a long chain containing each combination of: +// - struct, union, class, namespace +// - direct and definition +TEST_F(Specifications, LongChain) { + PushLine(0x5a0dd6bb85db754cULL, 0x3bccb213d08c7fd3ULL, "line-file", 21192926); + SetLanguage(dwarf2reader::DW_LANG_C_plus_plus); + + StartCU(); + // The structure we're building here is: + // space_A full definition + // space_B declaration + // space_B definition + // struct_C full definition + // struct_D declaration + // struct_D definition + // union_E full definition + // union_F declaration + // union_F definition + // class_G full definition + // class_H declaration + // class_H definition + // func_I declaration + // func_I definition + // + // So: + // - space_A, struct_C, union_E, and class_G don't use specifications; + // - space_B, struct_D, union_F, and class_H do. + // - func_I uses a specification. + // + // The full name for func_I is thus: + // + // space_A::space_B::struct_C::struct_D::union_E::union_F:: + // class_G::class_H::func_I + { + DIEHandler *space_A_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_namespace, + "space_A"); + DeclarationDIE(space_A_handler, 0x2e111126496596e2ULL, + dwarf2reader::DW_TAG_namespace, "space_B", ""); + space_A_handler->Finish(); + delete space_A_handler; + } + + { + DIEHandler *space_B_handler + = StartSpecifiedDIE(&root_handler_, dwarf2reader::DW_TAG_namespace, + 0x2e111126496596e2ULL); + DIEHandler *struct_C_handler + = StartNamedDIE(space_B_handler, dwarf2reader::DW_TAG_structure_type, + "struct_C"); + DeclarationDIE(struct_C_handler, 0x20cd423bf2a25a4cULL, + dwarf2reader::DW_TAG_structure_type, "struct_D", ""); + struct_C_handler->Finish(); + delete struct_C_handler; + space_B_handler->Finish(); + delete space_B_handler; + } + + { + DIEHandler *struct_D_handler + = StartSpecifiedDIE(&root_handler_, dwarf2reader::DW_TAG_structure_type, + 0x20cd423bf2a25a4cULL); + DIEHandler *union_E_handler + = StartNamedDIE(struct_D_handler, dwarf2reader::DW_TAG_union_type, + "union_E"); + DeclarationDIE(union_E_handler, 0xe25c84805aa58c32ULL, + dwarf2reader::DW_TAG_union_type, "union_F", ""); + union_E_handler->Finish(); + delete union_E_handler; + struct_D_handler->Finish(); + delete struct_D_handler; + } + + { + DIEHandler *union_F_handler + = StartSpecifiedDIE(&root_handler_, dwarf2reader::DW_TAG_union_type, + 0xe25c84805aa58c32ULL); + DIEHandler *class_G_handler + = StartNamedDIE(union_F_handler, dwarf2reader::DW_TAG_class_type, + "class_G"); + DeclarationDIE(class_G_handler, 0xb70d960dcc173b6eULL, + dwarf2reader::DW_TAG_class_type, "class_H", ""); + class_G_handler->Finish(); + delete class_G_handler; + union_F_handler->Finish(); + delete union_F_handler; + } + + { + DIEHandler *class_H_handler + = StartSpecifiedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + 0xb70d960dcc173b6eULL); + DeclarationDIE(class_H_handler, 0x27ff829e3bf69f37ULL, + dwarf2reader::DW_TAG_subprogram, "func_I", ""); + class_H_handler->Finish(); + delete class_H_handler; + } + + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0x27ff829e3bf69f37ULL, "", + 0x5a0dd6bb85db754cULL, 0x3bccb213d08c7fd3ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "space_A::space_B::struct_C::struct_D::union_E::union_F" + "::class_G::class_H::func_I", + 0x5a0dd6bb85db754cULL, 0x3bccb213d08c7fd3ULL); +} + +TEST_F(Specifications, InterCU) { + Module m("module-name", "module-os", "module-arch", "module-id"); + DwarfCUToModule::FileContext fc("dwarf-filename", &m, true); + EXPECT_CALL(reporter_, UncoveredFunction(_)).WillOnce(Return()); + MockLineToModuleHandler lr; + EXPECT_CALL(lr, ReadProgram(_,_,_,_)).Times(0); + + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); + + // First CU. Declares class_A. + { + DwarfCUToModule root1_handler(&fc, &lr, &reporter_); + ASSERT_TRUE(root1_handler.StartCompilationUnit(0, 1, 2, 3, 3)); + ASSERT_TRUE(root1_handler.StartRootDIE(1, + dwarf2reader::DW_TAG_compile_unit)); + ProcessStrangeAttributes(&root1_handler); + ASSERT_TRUE(root1_handler.EndAttributes()); + DeclarationDIE(&root1_handler, 0xb8fbfdd5f0b26fceULL, + dwarf2reader::DW_TAG_class_type, "class_A", ""); + root1_handler.Finish(); + } + + // Second CU. Defines class_A, declares member_func_B. + { + DwarfCUToModule root2_handler(&fc, &lr, &reporter_); + ASSERT_TRUE(root2_handler.StartCompilationUnit(0, 1, 2, 3, 3)); + ASSERT_TRUE(root2_handler.StartRootDIE(1, + dwarf2reader::DW_TAG_compile_unit)); + ASSERT_TRUE(root2_handler.EndAttributes()); + DIEHandler *class_A_handler + = StartSpecifiedDIE(&root2_handler, dwarf2reader::DW_TAG_class_type, + 0xb8fbfdd5f0b26fceULL); + DeclarationDIE(class_A_handler, 0xb01fef8b380bd1a2ULL, + dwarf2reader::DW_TAG_subprogram, "member_func_B", ""); + class_A_handler->Finish(); + delete class_A_handler; + root2_handler.Finish(); + } + + // Third CU. Defines member_func_B. + { + DwarfCUToModule root3_handler(&fc, &lr, &reporter_); + ASSERT_TRUE(root3_handler.StartCompilationUnit(0, 1, 2, 3, 3)); + ASSERT_TRUE(root3_handler.StartRootDIE(1, + dwarf2reader::DW_TAG_compile_unit)); + ASSERT_TRUE(root3_handler.EndAttributes()); + DefinitionDIE(&root3_handler, dwarf2reader::DW_TAG_subprogram, + 0xb01fef8b380bd1a2ULL, "", + 0x2618f00a1a711e53ULL, 0x4fd94b76d7c2caf5ULL); + root3_handler.Finish(); + } + + vector<Module::Function *> functions; + m.GetFunctions(&functions, functions.end()); + EXPECT_EQ(1U, functions.size()); + EXPECT_STREQ("class_A::member_func_B", functions[0]->name.c_str()); +} + +TEST_F(Specifications, UnhandledInterCU) { + Module m("module-name", "module-os", "module-arch", "module-id"); + DwarfCUToModule::FileContext fc("dwarf-filename", &m, false); + EXPECT_CALL(reporter_, UncoveredFunction(_)).WillOnce(Return()); + MockLineToModuleHandler lr; + EXPECT_CALL(lr, ReadProgram(_,_,_,_)).Times(0); + + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); + + // First CU. Declares class_A. + { + DwarfCUToModule root1_handler(&fc, &lr, &reporter_); + ASSERT_TRUE(root1_handler.StartCompilationUnit(0, 1, 2, 3, 3)); + ASSERT_TRUE(root1_handler.StartRootDIE(1, + dwarf2reader::DW_TAG_compile_unit)); + ProcessStrangeAttributes(&root1_handler); + ASSERT_TRUE(root1_handler.EndAttributes()); + DeclarationDIE(&root1_handler, 0xb8fbfdd5f0b26fceULL, + dwarf2reader::DW_TAG_class_type, "class_A", ""); + root1_handler.Finish(); + } + + // Second CU. Defines class_A, declares member_func_B. + { + DwarfCUToModule root2_handler(&fc, &lr, &reporter_); + ASSERT_TRUE(root2_handler.StartCompilationUnit(0, 1, 2, 3, 3)); + ASSERT_TRUE(root2_handler.StartRootDIE(1, + dwarf2reader::DW_TAG_compile_unit)); + ASSERT_TRUE(root2_handler.EndAttributes()); + EXPECT_CALL(reporter_, UnhandledInterCUReference(_, _)).Times(1); + DIEHandler *class_A_handler + = StartSpecifiedDIE(&root2_handler, dwarf2reader::DW_TAG_class_type, + 0xb8fbfdd5f0b26fceULL); + DeclarationDIE(class_A_handler, 0xb01fef8b380bd1a2ULL, + dwarf2reader::DW_TAG_subprogram, "member_func_B", ""); + class_A_handler->Finish(); + delete class_A_handler; + root2_handler.Finish(); + } + + // Third CU. Defines member_func_B. + { + DwarfCUToModule root3_handler(&fc, &lr, &reporter_); + ASSERT_TRUE(root3_handler.StartCompilationUnit(0, 1, 2, 3, 3)); + ASSERT_TRUE(root3_handler.StartRootDIE(1, + dwarf2reader::DW_TAG_compile_unit)); + ASSERT_TRUE(root3_handler.EndAttributes()); + EXPECT_CALL(reporter_, UnhandledInterCUReference(_, _)).Times(1); + EXPECT_CALL(reporter_, UnnamedFunction(_)).Times(1); + DefinitionDIE(&root3_handler, dwarf2reader::DW_TAG_subprogram, + 0xb01fef8b380bd1a2ULL, "", + 0x2618f00a1a711e53ULL, 0x4fd94b76d7c2caf5ULL); + root3_handler.Finish(); + } +} + +TEST_F(Specifications, BadOffset) { + PushLine(0xa0277efd7ce83771ULL, 0x149554a184c730c1ULL, "line-file", 56636272); + EXPECT_CALL(reporter_, UnknownSpecification(_, 0x2be953efa6f9a996ULL)) + .WillOnce(Return()); + + StartCU(); + DeclarationDIE(&root_handler_, 0xefd7f7752c27b7e4ULL, + dwarf2reader::DW_TAG_subprogram, "", ""); + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0x2be953efa6f9a996ULL, "function", + 0xa0277efd7ce83771ULL, 0x149554a184c730c1ULL); + root_handler_.Finish(); +} + +TEST_F(Specifications, FunctionDefinitionHasOwnName) { + PushLine(0xced50b3eea81022cULL, 0x08dd4d301cc7a7d2ULL, "line-file", 56792403); + + StartCU(); + DeclarationDIE(&root_handler_, 0xc34ff4786cae78bdULL, + dwarf2reader::DW_TAG_subprogram, "declaration-name", ""); + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0xc34ff4786cae78bdULL, "definition-name", + 0xced50b3eea81022cULL, 0x08dd4d301cc7a7d2ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "definition-name", + 0xced50b3eea81022cULL, 0x08dd4d301cc7a7d2ULL); +} + +TEST_F(Specifications, ClassDefinitionHasOwnName) { + PushLine(0x1d0f5e0f6ce309bdULL, 0x654e1852ec3599e7ULL, "line-file", 57119241); + + StartCU(); + DeclarationDIE(&root_handler_, 0xd0fe467ec2f1a58cULL, + dwarf2reader::DW_TAG_class_type, "class-declaration-name", ""); + + dwarf2reader::DIEHandler *class_definition + = StartSpecifiedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + 0xd0fe467ec2f1a58cULL, "class-definition-name"); + ASSERT_TRUE(class_definition); + DeclarationDIE(class_definition, 0x6d028229c15623dbULL, + dwarf2reader::DW_TAG_subprogram, + "function-declaration-name", ""); + class_definition->Finish(); + delete class_definition; + + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0x6d028229c15623dbULL, "function-definition-name", + 0x1d0f5e0f6ce309bdULL, 0x654e1852ec3599e7ULL); + + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "class-definition-name::function-definition-name", + 0x1d0f5e0f6ce309bdULL, 0x654e1852ec3599e7ULL); +} + +// DIEs that cite a specification should prefer the specification's +// parents over their own when choosing qualified names. In this test, +// we take the name from our definition but the enclosing scope name +// from our declaration. I don't see why they'd ever be different, but +// we want to verify what DwarfCUToModule is looking at. +TEST_F(Specifications, PreferSpecificationParents) { + PushLine(0xbbd9d54dce3b95b7ULL, 0x39188b7b52b0899fULL, "line-file", 79488694); + + StartCU(); + { + dwarf2reader::DIEHandler *declaration_class_handler = + StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + "declaration-class"); + DeclarationDIE(declaration_class_handler, 0x9ddb35517455ef7aULL, + dwarf2reader::DW_TAG_subprogram, "function-declaration", + ""); + declaration_class_handler->Finish(); + delete declaration_class_handler; + } + { + dwarf2reader::DIEHandler *definition_class_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + "definition-class"); + DefinitionDIE(definition_class_handler, dwarf2reader::DW_TAG_subprogram, + 0x9ddb35517455ef7aULL, "function-definition", + 0xbbd9d54dce3b95b7ULL, 0x39188b7b52b0899fULL); + definition_class_handler->Finish(); + delete definition_class_handler; + } + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "declaration-class::function-definition", + 0xbbd9d54dce3b95b7ULL, 0x39188b7b52b0899fULL); +} + +class CUErrors: public CUFixtureBase, public Test { }; + +TEST_F(CUErrors, BadStmtList) { + EXPECT_CALL(reporter_, BadLineInfoOffset(dummy_line_size_ + 10)).Times(1); + + ASSERT_TRUE(root_handler_ + .StartCompilationUnit(0xc591d5b037543d7cULL, 0x11, 0xcd, + 0x2d7d19546cf6590cULL, 3)); + ASSERT_TRUE(root_handler_.StartRootDIE(0xae789dc102cfca54ULL, + dwarf2reader::DW_TAG_compile_unit)); + root_handler_.ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + "compilation-unit-name"); + root_handler_.ProcessAttributeUnsigned(dwarf2reader::DW_AT_stmt_list, + dwarf2reader::DW_FORM_ref4, + dummy_line_size_ + 10); + root_handler_.EndAttributes(); + root_handler_.Finish(); +} + +TEST_F(CUErrors, NoLineSection) { + EXPECT_CALL(reporter_, MissingSection(".debug_line")).Times(1); + PushLine(0x88507fb678052611ULL, 0x42c8e9de6bbaa0faULL, "line-file", 64472290); + // Delete the entry for .debug_line added by the fixture class's constructor. + file_context_.ClearSectionMapForTest(); + + StartCU(); + root_handler_.Finish(); +} + +TEST_F(CUErrors, BadDwarfVersion1) { + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); + + ASSERT_FALSE(root_handler_ + .StartCompilationUnit(0xadf6e0eb71e2b0d9ULL, 0x4d, 0x90, + 0xc9de224ccb99ac3eULL, 1)); +} + +TEST_F(CUErrors, GoodDwarfVersion2) { + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); + + ASSERT_TRUE(root_handler_ + .StartCompilationUnit(0xadf6e0eb71e2b0d9ULL, 0x4d, 0x90, + 0xc9de224ccb99ac3eULL, 2)); +} + +TEST_F(CUErrors, GoodDwarfVersion3) { + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); + + ASSERT_TRUE(root_handler_ + .StartCompilationUnit(0xadf6e0eb71e2b0d9ULL, 0x4d, 0x90, + 0xc9de224ccb99ac3eULL, 3)); +} + +TEST_F(CUErrors, BadCURootDIETag) { + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); + + ASSERT_TRUE(root_handler_ + .StartCompilationUnit(0xadf6e0eb71e2b0d9ULL, 0x4d, 0x90, + 0xc9de224ccb99ac3eULL, 3)); + + ASSERT_FALSE(root_handler_.StartRootDIE(0x02e56bfbda9e7337ULL, + dwarf2reader::DW_TAG_subprogram)); +} + +// Tests for DwarfCUToModule::Reporter. These just produce (or fail to +// produce) output, so their results need to be checked by hand. +struct Reporter: public Test { + Reporter() + : reporter("filename", 0x123456789abcdef0ULL), + function("function name", 0x19c45c30770c1eb0ULL), + file("source file name") { + reporter.SetCUName("compilation-unit-name"); + + function.size = 0x89808a5bdfa0a6a3ULL; + function.parameter_size = 0x6a329f18683dcd51ULL; + + line.address = 0x3606ac6267aebeccULL; + line.size = 0x5de482229f32556aULL; + line.file = &file; + line.number = 93400201; + } + + DwarfCUToModule::WarningReporter reporter; + Module::Function function; + Module::File file; + Module::Line line; +}; + +TEST_F(Reporter, UnknownSpecification) { + reporter.UnknownSpecification(0x123456789abcdef1ULL, 0x323456789abcdef2ULL); +} + +TEST_F(Reporter, UnknownAbstractOrigin) { + reporter.UnknownAbstractOrigin(0x123456789abcdef1ULL, 0x323456789abcdef2ULL); +} + +TEST_F(Reporter, MissingSection) { + reporter.MissingSection("section name"); +} + +TEST_F(Reporter, BadLineInfoOffset) { + reporter.BadLineInfoOffset(0x123456789abcdef1ULL); +} + +TEST_F(Reporter, UncoveredFunctionDisabled) { + reporter.UncoveredFunction(function); + EXPECT_FALSE(reporter.uncovered_warnings_enabled()); +} + +TEST_F(Reporter, UncoveredFunctionEnabled) { + reporter.set_uncovered_warnings_enabled(true); + reporter.UncoveredFunction(function); + EXPECT_TRUE(reporter.uncovered_warnings_enabled()); +} + +TEST_F(Reporter, UncoveredLineDisabled) { + reporter.UncoveredLine(line); + EXPECT_FALSE(reporter.uncovered_warnings_enabled()); +} + +TEST_F(Reporter, UncoveredLineEnabled) { + reporter.set_uncovered_warnings_enabled(true); + reporter.UncoveredLine(line); + EXPECT_TRUE(reporter.uncovered_warnings_enabled()); +} + +TEST_F(Reporter, UnnamedFunction) { + reporter.UnnamedFunction(0x90c0baff9dedb2d9ULL); +} + +// Would be nice to also test: +// - overlapping lines, functions diff --git a/3rdParty/Breakpad/src/common/dwarf_line_to_module.cc b/3rdParty/Breakpad/src/common/dwarf_line_to_module.cc index 962848d..258b0b6 100644 --- a/3rdParty/Breakpad/src/common/dwarf_line_to_module.cc +++ b/3rdParty/Breakpad/src/common/dwarf_line_to_module.cc @@ -48,13 +48,17 @@ static bool PathIsAbsolute(const string &path) { return (path.size() >= 1 && path[0] == '/'); } +static bool HasTrailingSlash(const string &path) { + return (path.size() >= 1 && path[path.size() - 1] == '/'); +} + // If PATH is an absolute path, return PATH. If PATH is a relative path, // treat it as relative to BASE and return the combined path. static string ExpandPath(const string &path, const string &base) { - if (PathIsAbsolute(path)) + if (PathIsAbsolute(path) || base.empty()) return path; - return base + "/" + path; + return base + (HasTrailingSlash(base) ? "" : "/") + path; } namespace google_breakpad { @@ -63,7 +67,7 @@ void DwarfLineToModule::DefineDir(const string &name, uint32 dir_num) { // Directory number zero is reserved to mean the compilation // directory. Silently ignore attempts to redefine it. if (dir_num != 0) - directories_[dir_num] = name; + directories_[dir_num] = ExpandPath(name, compilation_dir_); } void DwarfLineToModule::DefineFile(const string &name, int32 file_num, @@ -74,25 +78,26 @@ void DwarfLineToModule::DefineFile(const string &name, int32 file_num, else if (file_num > highest_file_number_) highest_file_number_ = file_num; - string full_name; - if (dir_num != 0) { + string dir_name; + if (dir_num == 0) { + // Directory number zero is the compilation directory, and is stored as + // an attribute on the compilation unit, rather than in the program table. + dir_name = compilation_dir_; + } else { DirectoryTable::const_iterator directory_it = directories_.find(dir_num); if (directory_it != directories_.end()) { - full_name = ExpandPath(name, directory_it->second); + dir_name = directory_it->second; } else { if (!warned_bad_directory_number_) { fprintf(stderr, "warning: DWARF line number data refers to undefined" " directory numbers\n"); warned_bad_directory_number_ = true; } - full_name = name; // just treat name as relative } - } else { - // Directory number zero is the compilation directory; we just report - // relative paths in that case. - full_name = name; } + string full_name = ExpandPath(name, dir_name); + // Find a Module::File object of the given name, and add it to the // file table. files_[file_num] = module_->FindFile(full_name); diff --git a/3rdParty/Breakpad/src/common/dwarf_line_to_module.h b/3rdParty/Breakpad/src/common/dwarf_line_to_module.h index 9382e40..1fdd4cb 100644 --- a/3rdParty/Breakpad/src/common/dwarf_line_to_module.h +++ b/3rdParty/Breakpad/src/common/dwarf_line_to_module.h @@ -120,8 +120,10 @@ class DwarfLineToModule: public dwarf2reader::LineInfoHandler { // end of the address space, we clip it. It's up to our client to // sort out which lines belong to which functions; we don't add them // to any particular function in MODULE ourselves. - DwarfLineToModule(Module *module, vector<Module::Line> *lines) + DwarfLineToModule(Module *module, const string& compilation_dir, + vector<Module::Line> *lines) : module_(module), + compilation_dir_(compilation_dir), lines_(lines), highest_file_number_(-1), omitted_line_end_(0), @@ -146,6 +148,10 @@ class DwarfLineToModule: public dwarf2reader::LineInfoHandler { // client. Module *module_; + // The compilation directory for the current compilation unit whose + // lines are being accumulated. + string compilation_dir_; + // The vector of lines we're accumulating. Owned by our client. // // In a Module, as in a breakpad symbol file, lines belong to diff --git a/3rdParty/Breakpad/src/common/dwarf_line_to_module_unittest.cc b/3rdParty/Breakpad/src/common/dwarf_line_to_module_unittest.cc new file mode 100644 index 0000000..7c0fcfd --- /dev/null +++ b/3rdParty/Breakpad/src/common/dwarf_line_to_module_unittest.cc @@ -0,0 +1,391 @@ +// Copyright (c) 2010 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// dwarf_line_to_module.cc: Unit tests for google_breakpad::DwarfLineToModule. + +#include <vector> + +#include "breakpad_googletest_includes.h" +#include "common/dwarf_line_to_module.h" + +using std::vector; + +using google_breakpad::DwarfLineToModule; +using google_breakpad::Module; +using google_breakpad::Module; + +TEST(SimpleModule, One) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineFile("file1", 0x30bf0f27, 0, 0, 0); + h.AddLine(0x6fd126fbf74f2680LL, 0x63c9a14cf556712bLL, 0x30bf0f27, + 0x4c090cbf, 0x1cf9fe0d); + + vector<Module::File *> files; + m.GetFiles(&files); + EXPECT_EQ(1U, files.size()); + EXPECT_STREQ("/file1", files[0]->name.c_str()); + + EXPECT_EQ(1U, lines.size()); + EXPECT_EQ(0x6fd126fbf74f2680ULL, lines[0].address); + EXPECT_EQ(0x63c9a14cf556712bULL, lines[0].size); + EXPECT_TRUE(lines[0].file == files[0]); + EXPECT_EQ(0x4c090cbf, lines[0].number); +} + +TEST(SimpleModule, Many) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineDir("directory1", 0x838299ab); + h.DefineDir("directory2", 0xf85de023); + h.DefineFile("file1", 0x2b80377a, 0x838299ab, 0, 0); + h.DefineFile("file1", 0x63beb4a4, 0xf85de023, 0, 0); + h.DefineFile("file2", 0x1d161d56, 0x838299ab, 0, 0); + h.DefineFile("file2", 0x1e7a667c, 0xf85de023, 0, 0); + h.AddLine(0x69900c5d553b7274ULL, 0x90fded183f0d0d3cULL, 0x2b80377a, + 0x15b0f0a9U, 0x3ff5abd6U); + h.AddLine(0x45811219a39b7101ULL, 0x25a5e6a924afc41fULL, 0x63beb4a4, + 0x4d259ce9U, 0x41c5ee32U); + h.AddLine(0xfa90514c1dc9704bULL, 0x0063efeabc02f313ULL, 0x1d161d56, + 0x1ee9fa4fU, 0xbf70e46aU); + h.AddLine(0x556b55fb6a647b10ULL, 0x3f3089ca2bfd80f5ULL, 0x1e7a667c, + 0x77fc280eU, 0x2c4a728cU); + h.DefineFile("file3", -1, 0, 0, 0); + h.AddLine(0xe2d72a37f8d9403aULL, 0x034dfab5b0d4d236ULL, 0x63beb4a5, + 0x75047044U, 0xb6a0016cU); + + vector<Module::File *> files; + m.GetFiles(&files); + ASSERT_EQ(5U, files.size()); + EXPECT_STREQ("/directory1/file1", files[0]->name.c_str()); + EXPECT_STREQ("/directory1/file2", files[1]->name.c_str()); + EXPECT_STREQ("/directory2/file1", files[2]->name.c_str()); + EXPECT_STREQ("/directory2/file2", files[3]->name.c_str()); + EXPECT_STREQ("/file3", files[4]->name.c_str()); + + ASSERT_EQ(5U, lines.size()); + + EXPECT_EQ(0x69900c5d553b7274ULL, lines[0].address); + EXPECT_EQ(0x90fded183f0d0d3cULL, lines[0].size); + EXPECT_TRUE(lines[0].file == files[0]); + EXPECT_EQ(0x15b0f0a9, lines[0].number); + + EXPECT_EQ(0x45811219a39b7101ULL, lines[1].address); + EXPECT_EQ(0x25a5e6a924afc41fULL, lines[1].size); + EXPECT_TRUE(lines[1].file == files[2]); + EXPECT_EQ(0x4d259ce9, lines[1].number); + + EXPECT_EQ(0xfa90514c1dc9704bULL, lines[2].address); + EXPECT_EQ(0x0063efeabc02f313ULL, lines[2].size); + EXPECT_TRUE(lines[2].file == files[1]); + EXPECT_EQ(0x1ee9fa4f, lines[2].number); + + EXPECT_EQ(0x556b55fb6a647b10ULL, lines[3].address); + EXPECT_EQ(0x3f3089ca2bfd80f5ULL, lines[3].size); + EXPECT_TRUE(lines[3].file == files[3]); + EXPECT_EQ(0x77fc280e, lines[3].number); + + EXPECT_EQ(0xe2d72a37f8d9403aULL, lines[4].address); + EXPECT_EQ(0x034dfab5b0d4d236ULL, lines[4].size); + EXPECT_TRUE(lines[4].file == files[4]); + EXPECT_EQ(0x75047044, lines[4].number); +} + +TEST(Filenames, Absolute) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineDir("directory1", 1); + h.DefineFile("/absolute", 1, 1, 0, 0); + + h.AddLine(1, 1, 1, 0, 0); + + vector<Module::File *> files; + m.GetFiles(&files); + ASSERT_EQ(1U, files.size()); + EXPECT_STREQ("/absolute", files[0]->name.c_str()); + ASSERT_EQ(1U, lines.size()); + EXPECT_TRUE(lines[0].file == files[0]); +} + +TEST(Filenames, Relative) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineDir("directory1", 1); + h.DefineFile("relative", 1, 1, 0, 0); + + h.AddLine(1, 1, 1, 0, 0); + + vector<Module::File *> files; + m.GetFiles(&files); + ASSERT_EQ(1U, files.size()); + EXPECT_STREQ("/directory1/relative", files[0]->name.c_str()); + ASSERT_EQ(1U, lines.size()); + EXPECT_TRUE(lines[0].file == files[0]); +} + +TEST(Filenames, StrangeFile) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineDir("directory1", 1); + h.DefineFile("", 1, 1, 0, 0); + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("/directory1/", lines[0].file->name.c_str()); +} + +TEST(Filenames, StrangeDirectory) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineDir("", 1); + h.DefineFile("file1", 1, 1, 0, 0); + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("/file1", lines[0].file->name.c_str()); +} + +TEST(Filenames, StrangeDirectoryAndFile) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineDir("", 1); + h.DefineFile("", 1, 1, 0, 0); + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("/", lines[0].file->name.c_str()); +} + +// We should use the compilation directory when encountering a file for +// directory number zero. +TEST(Filenames, DirectoryZeroFileIsRelativeToCompilationDir) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "src/build", &lines); + + h.DefineDir("Dir", 1); + h.DefineFile("File", 1, 0, 0, 0); + + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("src/build/File", lines[0].file->name.c_str()); +} + +// We should treat non-absolute directories as relative to the compilation +// directory. +TEST(Filenames, IncludeDirectoryRelativeToDirectoryZero) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "src/build", &lines); + + h.DefineDir("Dir", 1); + h.DefineFile("File", 1, 1, 0, 0); + + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("src/build/Dir/File", lines[0].file->name.c_str()); +} + +// We should treat absolute directories as absolute, and not relative to +// the compilation dir. +TEST(Filenames, IncludeDirectoryAbsolute) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "src/build", &lines); + + h.DefineDir("/Dir", 1); + h.DefineFile("File", 1, 1, 0, 0); + + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("/Dir/File", lines[0].file->name.c_str()); +} + +// We should silently ignore attempts to define directory number zero, +// since that is always the compilation directory. +TEST(ModuleErrors, DirectoryZero) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineDir("directory0", 0); // should be ignored + h.DefineFile("relative", 1, 0, 0, 0); + + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("/relative", lines[0].file->name.c_str()); +} + +// We should refuse to add lines with bogus file numbers. We should +// produce only one warning, however. +TEST(ModuleErrors, BadFileNumber) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineFile("relative", 1, 0, 0, 0); + h.AddLine(1, 1, 2, 0, 0); // bad file number + h.AddLine(2, 1, 2, 0, 0); // bad file number (no duplicate warning) + + EXPECT_EQ(0U, lines.size()); +} + +// We should treat files with bogus directory numbers as relative to +// the compilation unit. +TEST(ModuleErrors, BadDirectoryNumber) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineDir("directory1", 1); + h.DefineFile("baddirnumber1", 1, 2, 0, 0); // bad directory number + h.DefineFile("baddirnumber2", 2, 2, 0, 0); // bad dir number (no warning) + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("baddirnumber1", lines[0].file->name.c_str()); +} + +// We promise not to report empty lines. +TEST(ModuleErrors, EmptyLine) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineFile("filename1", 1, 0, 0, 0); + h.AddLine(1, 0, 1, 0, 0); + + ASSERT_EQ(0U, lines.size()); +} + +// We are supposed to clip lines that extend beyond the end of the +// address space. +TEST(ModuleErrors, BigLine) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineFile("filename1", 1, 0, 0, 0); + h.AddLine(0xffffffffffffffffULL, 2, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_EQ(1U, lines[0].size); +} + +// The 'Omitted' tests verify that we correctly omit line information +// for code in sections that the linker has dropped. See "GNU +// toolchain omitted sections support" at the top of the +// DwarfLineToModule class. + +TEST(Omitted, DroppedThenGood) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineFile("filename1", 1, 0, 0, 0); + h.AddLine(0, 10, 1, 83816211, 0); // should be omitted + h.AddLine(20, 10, 1, 13059195, 0); // should be recorded + + ASSERT_EQ(1U, lines.size()); + EXPECT_EQ(13059195, lines[0].number); +} + +TEST(Omitted, GoodThenDropped) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineFile("filename1", 1, 0, 0, 0); + h.AddLine(0x9dd6a372, 10, 1, 41454594, 0); // should be recorded + h.AddLine(0, 10, 1, 44793413, 0); // should be omitted + + ASSERT_EQ(1U, lines.size()); + EXPECT_EQ(41454594, lines[0].number); +} + +TEST(Omitted, Mix1) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineFile("filename1", 1, 0, 0, 0); + h.AddLine(0x679ed72f, 10, 1, 58932642, 0); // should be recorded + h.AddLine(0xdfb5a72d, 10, 1, 39847385, 0); // should be recorded + h.AddLine(0, 0x78, 1, 23053829, 0); // should be omitted + h.AddLine(0x78, 0x6a, 1, 65317783, 0); // should be omitted + h.AddLine(0x78 + 0x6a, 0x2a, 1, 77601423, 0); // should be omitted + h.AddLine(0x9fe0cea5, 10, 1, 91806582, 0); // should be recorded + h.AddLine(0x7e41a109, 10, 1, 56169221, 0); // should be recorded + + ASSERT_EQ(4U, lines.size()); + EXPECT_EQ(58932642, lines[0].number); + EXPECT_EQ(39847385, lines[1].number); + EXPECT_EQ(91806582, lines[2].number); + EXPECT_EQ(56169221, lines[3].number); +} + +TEST(Omitted, Mix2) { + Module m("name", "os", "architecture", "id"); + vector<Module::Line> lines; + DwarfLineToModule h(&m, "/", &lines); + + h.DefineFile("filename1", 1, 0, 0, 0); + h.AddLine(0, 0xf2, 1, 58802211, 0); // should be omitted + h.AddLine(0xf2, 0xb9, 1, 78958222, 0); // should be omitted + h.AddLine(0xf2 + 0xb9, 0xf7, 1, 64861892, 0); // should be omitted + h.AddLine(0x4e4d271e, 9, 1, 67355743, 0); // should be recorded + h.AddLine(0xdfb5a72d, 30, 1, 23365776, 0); // should be recorded + h.AddLine(0, 0x64, 1, 76196762, 0); // should be omitted + h.AddLine(0x64, 0x33, 1, 71066611, 0); // should be omitted + h.AddLine(0x64 + 0x33, 0xe3, 1, 61749337, 0); // should be omitted + + ASSERT_EQ(2U, lines.size()); + EXPECT_EQ(67355743, lines[0].number); + EXPECT_EQ(23365776, lines[1].number); +} diff --git a/3rdParty/Breakpad/src/common/language.cc b/3rdParty/Breakpad/src/common/language.cc index c2fd81f..978fb85 100644 --- a/3rdParty/Breakpad/src/common/language.cc +++ b/3rdParty/Breakpad/src/common/language.cc @@ -34,18 +34,70 @@ #include "common/language.h" +#include <stdlib.h> + +#if !defined(__ANDROID__) +#include <cxxabi.h> +#endif + +#if defined(HAVE_RUST_DEMANGLE) +#include <rust_demangle.h> +#endif + +#include <limits> + +namespace { + +string MakeQualifiedNameWithSeparator(const string& parent_name, + const char* separator, + const string& name) { + if (parent_name.empty()) { + return name; + } + + return parent_name + separator + name; +} + +} // namespace + namespace google_breakpad { // C++ language-specific operations. class CPPLanguage: public Language { public: CPPLanguage() {} + string MakeQualifiedName(const string &parent_name, const string &name) const { - if (parent_name.empty()) - return name; - else - return parent_name + "::" + name; + return MakeQualifiedNameWithSeparator(parent_name, "::", name); + } + + virtual DemangleResult DemangleName(const string& mangled, + string* demangled) const { +#if defined(__ANDROID__) + // Android NDK doesn't provide abi::__cxa_demangle. + demangled->clear(); + return kDontDemangle; +#else + int status; + char* demangled_c = + abi::__cxa_demangle(mangled.c_str(), NULL, NULL, &status); + + DemangleResult result; + if (status == 0) { + result = kDemangleSuccess; + demangled->assign(demangled_c); + } else { + result = kDemangleFailure; + demangled->clear(); + } + + if (demangled_c) { + free(reinterpret_cast<void*>(demangled_c)); + } + + return result; +#endif } }; @@ -54,19 +106,79 @@ CPPLanguage CPPLanguageSingleton; // Java language-specific operations. class JavaLanguage: public Language { public: + JavaLanguage() {} + string MakeQualifiedName(const string &parent_name, const string &name) const { - if (parent_name.empty()) - return name; - else - return parent_name + "." + name; + return MakeQualifiedNameWithSeparator(parent_name, ".", name); } }; JavaLanguage JavaLanguageSingleton; +// Swift language-specific operations. +class SwiftLanguage: public Language { + public: + SwiftLanguage() {} + + string MakeQualifiedName(const string &parent_name, + const string &name) const { + return MakeQualifiedNameWithSeparator(parent_name, ".", name); + } + + virtual DemangleResult DemangleName(const string& mangled, + string* demangled) const { + // There is no programmatic interface to a Swift demangler. Pass through the + // mangled form because it encodes more information than the qualified name + // that would have been built by MakeQualifiedName(). The output can be + // post-processed by xcrun swift-demangle to transform mangled Swift names + // into something more readable. + demangled->assign(mangled); + return kDemangleSuccess; + } +}; + +SwiftLanguage SwiftLanguageSingleton; + +// Rust language-specific operations. +class RustLanguage: public Language { + public: + RustLanguage() {} + + string MakeQualifiedName(const string &parent_name, + const string &name) const { + return MakeQualifiedNameWithSeparator(parent_name, ".", name); + } + + virtual DemangleResult DemangleName(const string& mangled, + string* demangled) const { + // Rust names use GCC C++ name mangling, but demangling them with + // abi_demangle doesn't produce stellar results due to them having + // another layer of encoding. + // If callers provide rustc-demangle, use that. +#if defined(HAVE_RUST_DEMANGLE) + char* rust_demangled = rust_demangle(mangled.c_str()); + if (rust_demangled == nullptr) { + return kDemangleFailure; + } + demangled->assign(rust_demangled); + free_rust_demangled_name(rust_demangled); +#else + // Otherwise, pass through the mangled name so callers can demangle + // after the fact. + demangled->assign(mangled); +#endif + return kDemangleSuccess; + } +}; + +RustLanguage RustLanguageSingleton; + // Assembler language-specific operations. class AssemblerLanguage: public Language { + public: + AssemblerLanguage() {} + bool HasFunctions() const { return false; } string MakeQualifiedName(const string &parent_name, const string &name) const { @@ -78,6 +190,8 @@ AssemblerLanguage AssemblerLanguageSingleton; const Language * const Language::CPlusPlus = &CPPLanguageSingleton; const Language * const Language::Java = &JavaLanguageSingleton; +const Language * const Language::Swift = &SwiftLanguageSingleton; +const Language * const Language::Rust = &RustLanguageSingleton; const Language * const Language::Assembler = &AssemblerLanguageSingleton; } // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/common/language.h b/3rdParty/Breakpad/src/common/language.h index bbe3033..2d2dbcd 100644 --- a/3rdParty/Breakpad/src/common/language.h +++ b/3rdParty/Breakpad/src/common/language.h @@ -77,9 +77,26 @@ class Language { virtual string MakeQualifiedName (const string &parent_name, const string &name) const = 0; + enum DemangleResult { + // Demangling was not performed because it’s not appropriate to attempt. + kDontDemangle = -1, + + kDemangleSuccess, + kDemangleFailure, + }; + + // Wraps abi::__cxa_demangle() or similar for languages where appropriate. + virtual DemangleResult DemangleName(const string& mangled, + string* demangled) const { + demangled->clear(); + return kDontDemangle; + } + // Instances for specific languages. static const Language * const CPlusPlus, * const Java, + * const Swift, + * const Rust, * const Assembler; }; diff --git a/3rdParty/Breakpad/src/common/linux/linux_libc_support.h b/3rdParty/Breakpad/src/common/linux/linux_libc_support.h index b2f47af..ec5a8d6 100644 --- a/3rdParty/Breakpad/src/common/linux/linux_libc_support.h +++ b/3rdParty/Breakpad/src/common/linux/linux_libc_support.h @@ -52,17 +52,16 @@ extern int my_strncmp(const char* a, const char* b, size_t len); // Return true iff successful. extern bool my_strtoui(int* result, const char* s); -// Return the length of the given, non-negative integer when expressed in base -// 10. -extern unsigned my_int_len(intmax_t i); +// Return the length of the given unsigned integer when expressed in base 10. +extern unsigned my_uint_len(uintmax_t i); -// Convert a non-negative integer to a string +// Convert an unsigned integer to a string // output: (output) the resulting string is written here. This buffer must be -// large enough to hold the resulting string. Call |my_int_len| to get the +// large enough to hold the resulting string. Call |my_uint_len| to get the // required length. -// i: the non-negative integer to serialise. -// i_len: the length of the integer in base 10 (see |my_int_len|). -extern void my_itos(char* output, intmax_t i, unsigned i_len); +// i: the unsigned integer to serialise. +// i_len: the length of the integer in base 10 (see |my_uint_len|). +extern void my_uitos(char* output, uintmax_t i, unsigned i_len); extern const char* my_strchr(const char* haystack, char needle); @@ -78,6 +77,8 @@ extern const char* my_read_decimal_ptr(uintptr_t* result, const char* s); extern void my_memset(void* ip, char c, size_t len); +extern void* my_memchr(const void* src, int c, size_t len); + // The following are considered safe to use in a compromised environment. // Besides, this gives the compiler an opportunity to optimize their calls. #define my_memcpy memcpy diff --git a/3rdParty/Breakpad/src/common/mac/Breakpad.xcconfig b/3rdParty/Breakpad/src/common/mac/Breakpad.xcconfig new file mode 100644 index 0000000..f091369 --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/Breakpad.xcconfig @@ -0,0 +1,52 @@ +// Copyright (c) 2010, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +GCC_C_LANGUAGE_STANDARD = c99 + +GCC_WARN_CHECK_SWITCH_STATEMENTS = YES +// TODO(nealsid): Get the code so we can turn on the 64_TO_32 warning. +GCC_WARN_64_TO_32_BIT_CONVERSION = NO +GCC_WARN_INITIALIZER_NOT_FULLY_BRACKETED = YES +GCC_WARN_ABOUT_RETURN_TYPE = YES +GCC_WARN_MISSING_PARENTHESES = YES + +// Once https://bugs.chromium.org/p/google-breakpad/issues/detail?id=697 +// is fixed this should be reenabled. +//GCC_WARN_ABOUT_MISSING_FIELD_INITIALIZERS = YES +GCC_WARN_ABOUT_MISSING_NEWLINE = YES +GCC_WARN_SIGN_COMPARE = YES +GCC_TREAT_IMPLICIT_FUNCTION_DECLARATIONS_AS_ERRORS = YES +GCC_WARN_UNDECLARED_SELECTOR = YES +GCC_WARN_UNKNOWN_PRAGMAS = YES +GCC_WARN_UNUSED_VARIABLE = YES +GCC_TREAT_WARNINGS_AS_ERRORS = YES + +DEBUG_INFORMATION_FORMAT = dwarf-with-dsym + +ALWAYS_SEARCH_USER_PATHS = NO diff --git a/3rdParty/Breakpad/src/common/mac/BreakpadDebug.xcconfig b/3rdParty/Breakpad/src/common/mac/BreakpadDebug.xcconfig new file mode 100644 index 0000000..94cdd8c --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/BreakpadDebug.xcconfig @@ -0,0 +1,32 @@ +// Copyright (c) 2010, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "Breakpad.xcconfig" + +GCC_OPTIMIZATION_LEVEL = 0 diff --git a/3rdParty/Breakpad/src/common/mac/BreakpadRelease.xcconfig b/3rdParty/Breakpad/src/common/mac/BreakpadRelease.xcconfig new file mode 100644 index 0000000..920f277 --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/BreakpadRelease.xcconfig @@ -0,0 +1,34 @@ +// Copyright (c) 2010, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "Breakpad.xcconfig" + +GCC_OPTIMIZATION_LEVEL = s +GCC_WARN_UNINITIALIZED_AUTOS = YES +GCC_PREPROCESSOR_DEFINITIONS = $(inherited) NDEBUG diff --git a/3rdParty/Breakpad/src/common/mac/GTMDefines.h b/3rdParty/Breakpad/src/common/mac/GTMDefines.h new file mode 100644 index 0000000..04fcf6d --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/GTMDefines.h @@ -0,0 +1,456 @@ +// +// GTMDefines.h +// +// Copyright 2008 Google Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy +// of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. +// + +// ============================================================================ + +#include <AvailabilityMacros.h> +#include <TargetConditionals.h> + +#ifdef __OBJC__ +#include <Foundation/NSObjCRuntime.h> +#endif // __OBJC__ + +#if TARGET_OS_IPHONE +#include <Availability.h> +#endif // TARGET_OS_IPHONE + +// Not all MAC_OS_X_VERSION_10_X macros defined in past SDKs +#ifndef MAC_OS_X_VERSION_10_5 + #define MAC_OS_X_VERSION_10_5 1050 +#endif +#ifndef MAC_OS_X_VERSION_10_6 + #define MAC_OS_X_VERSION_10_6 1060 +#endif +#ifndef MAC_OS_X_VERSION_10_7 + #define MAC_OS_X_VERSION_10_7 1070 +#endif + +// Not all __IPHONE_X macros defined in past SDKs +#ifndef __IPHONE_3_0 + #define __IPHONE_3_0 30000 +#endif +#ifndef __IPHONE_3_1 + #define __IPHONE_3_1 30100 +#endif +#ifndef __IPHONE_3_2 + #define __IPHONE_3_2 30200 +#endif +#ifndef __IPHONE_4_0 + #define __IPHONE_4_0 40000 +#endif +#ifndef __IPHONE_4_3 + #define __IPHONE_4_3 40300 +#endif +#ifndef __IPHONE_5_0 + #define __IPHONE_5_0 50000 +#endif + +// ---------------------------------------------------------------------------- +// CPP symbols that can be overridden in a prefix to control how the toolbox +// is compiled. +// ---------------------------------------------------------------------------- + + +// By setting the GTM_CONTAINERS_VALIDATION_FAILED_LOG and +// GTM_CONTAINERS_VALIDATION_FAILED_ASSERT macros you can control what happens +// when a validation fails. If you implement your own validators, you may want +// to control their internals using the same macros for consistency. +#ifndef GTM_CONTAINERS_VALIDATION_FAILED_ASSERT + #define GTM_CONTAINERS_VALIDATION_FAILED_ASSERT 0 +#endif + +// Give ourselves a consistent way to do inlines. Apple's macros even use +// a few different actual definitions, so we're based off of the foundation +// one. +#if !defined(GTM_INLINE) + #if (defined (__GNUC__) && (__GNUC__ == 4)) || defined (__clang__) + #define GTM_INLINE static __inline__ __attribute__((always_inline)) + #else + #define GTM_INLINE static __inline__ + #endif +#endif + +// Give ourselves a consistent way of doing externs that links up nicely +// when mixing objc and objc++ +#if !defined (GTM_EXTERN) + #if defined __cplusplus + #define GTM_EXTERN extern "C" + #define GTM_EXTERN_C_BEGIN extern "C" { + #define GTM_EXTERN_C_END } + #else + #define GTM_EXTERN extern + #define GTM_EXTERN_C_BEGIN + #define GTM_EXTERN_C_END + #endif +#endif + +// Give ourselves a consistent way of exporting things if we have visibility +// set to hidden. +#if !defined (GTM_EXPORT) + #define GTM_EXPORT __attribute__((visibility("default"))) +#endif + +// Give ourselves a consistent way of declaring something as unused. This +// doesn't use __unused because that is only supported in gcc 4.2 and greater. +#if !defined (GTM_UNUSED) +#define GTM_UNUSED(x) ((void)(x)) +#endif + +// _GTMDevLog & _GTMDevAssert +// +// _GTMDevLog & _GTMDevAssert are meant to be a very lightweight shell for +// developer level errors. This implementation simply macros to NSLog/NSAssert. +// It is not intended to be a general logging/reporting system. +// +// Please see https://github.com/google/google-toolbox-for-mac/wiki/DevLogNAssert +// for a little more background on the usage of these macros. +// +// _GTMDevLog log some error/problem in debug builds +// _GTMDevAssert assert if conditon isn't met w/in a method/function +// in all builds. +// +// To replace this system, just provide different macro definitions in your +// prefix header. Remember, any implementation you provide *must* be thread +// safe since this could be called by anything in what ever situtation it has +// been placed in. +// + +// We only define the simple macros if nothing else has defined this. +#ifndef _GTMDevLog + +#ifdef DEBUG + #define _GTMDevLog(...) NSLog(__VA_ARGS__) +#else + #define _GTMDevLog(...) do { } while (0) +#endif + +#endif // _GTMDevLog + +#ifndef _GTMDevAssert +// we directly invoke the NSAssert handler so we can pass on the varargs +// (NSAssert doesn't have a macro we can use that takes varargs) +#if !defined(NS_BLOCK_ASSERTIONS) + #define _GTMDevAssert(condition, ...) \ + do { \ + if (!(condition)) { \ + [[NSAssertionHandler currentHandler] \ + handleFailureInFunction:[NSString stringWithUTF8String:__PRETTY_FUNCTION__] \ + file:[NSString stringWithUTF8String:__FILE__] \ + lineNumber:__LINE__ \ + description:__VA_ARGS__]; \ + } \ + } while(0) +#else // !defined(NS_BLOCK_ASSERTIONS) + #define _GTMDevAssert(condition, ...) do { } while (0) +#endif // !defined(NS_BLOCK_ASSERTIONS) + +#endif // _GTMDevAssert + +// _GTMCompileAssert +// _GTMCompileAssert is an assert that is meant to fire at compile time if you +// want to check things at compile instead of runtime. For example if you +// want to check that a wchar is 4 bytes instead of 2 you would use +// _GTMCompileAssert(sizeof(wchar_t) == 4, wchar_t_is_4_bytes_on_OS_X) +// Note that the second "arg" is not in quotes, and must be a valid processor +// symbol in it's own right (no spaces, punctuation etc). + +// Wrapping this in an #ifndef allows external groups to define their own +// compile time assert scheme. +#ifndef _GTMCompileAssert + // We got this technique from here: + // http://unixjunkie.blogspot.com/2007/10/better-compile-time-asserts_29.html + + #define _GTMCompileAssertSymbolInner(line, msg) _GTMCOMPILEASSERT ## line ## __ ## msg + #define _GTMCompileAssertSymbol(line, msg) _GTMCompileAssertSymbolInner(line, msg) + #define _GTMCompileAssert(test, msg) \ + typedef char _GTMCompileAssertSymbol(__LINE__, msg) [ ((test) ? 1 : -1) ] +#endif // _GTMCompileAssert + +// ---------------------------------------------------------------------------- +// CPP symbols defined based on the project settings so the GTM code has +// simple things to test against w/o scattering the knowledge of project +// setting through all the code. +// ---------------------------------------------------------------------------- + +// Provide a single constant CPP symbol that all of GTM uses for ifdefing +// iPhone code. +#if TARGET_OS_IPHONE // iPhone SDK + // For iPhone specific stuff + #define GTM_IPHONE_SDK 1 + #if TARGET_IPHONE_SIMULATOR + #define GTM_IPHONE_DEVICE 0 + #define GTM_IPHONE_SIMULATOR 1 + #else + #define GTM_IPHONE_DEVICE 1 + #define GTM_IPHONE_SIMULATOR 0 + #endif // TARGET_IPHONE_SIMULATOR + // By default, GTM has provided it's own unittesting support, define this + // to use the support provided by Xcode, especially for the Xcode4 support + // for unittesting. + #ifndef GTM_IPHONE_USE_SENTEST + #define GTM_IPHONE_USE_SENTEST 0 + #endif + #define GTM_MACOS_SDK 0 +#else + // For MacOS specific stuff + #define GTM_MACOS_SDK 1 + #define GTM_IPHONE_SDK 0 + #define GTM_IPHONE_SIMULATOR 0 + #define GTM_IPHONE_DEVICE 0 + #define GTM_IPHONE_USE_SENTEST 0 +#endif + +// Some of our own availability macros +#if GTM_MACOS_SDK +#define GTM_AVAILABLE_ONLY_ON_IPHONE UNAVAILABLE_ATTRIBUTE +#define GTM_AVAILABLE_ONLY_ON_MACOS +#else +#define GTM_AVAILABLE_ONLY_ON_IPHONE +#define GTM_AVAILABLE_ONLY_ON_MACOS UNAVAILABLE_ATTRIBUTE +#endif + +// GC was dropped by Apple, define the old constant incase anyone still keys +// off of it. +#ifndef GTM_SUPPORT_GC + #define GTM_SUPPORT_GC 0 +#endif + +// To simplify support for 64bit (and Leopard in general), we provide the type +// defines for non Leopard SDKs +#if !(MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5) + // NSInteger/NSUInteger and Max/Mins + #ifndef NSINTEGER_DEFINED + #if (defined(__LP64__) && __LP64__) || NS_BUILD_32_LIKE_64 + typedef long NSInteger; + typedef unsigned long NSUInteger; + #else + typedef int NSInteger; + typedef unsigned int NSUInteger; + #endif + #define NSIntegerMax LONG_MAX + #define NSIntegerMin LONG_MIN + #define NSUIntegerMax ULONG_MAX + #define NSINTEGER_DEFINED 1 + #endif // NSINTEGER_DEFINED + // CGFloat + #ifndef CGFLOAT_DEFINED + #if defined(__LP64__) && __LP64__ + // This really is an untested path (64bit on Tiger?) + typedef double CGFloat; + #define CGFLOAT_MIN DBL_MIN + #define CGFLOAT_MAX DBL_MAX + #define CGFLOAT_IS_DOUBLE 1 + #else /* !defined(__LP64__) || !__LP64__ */ + typedef float CGFloat; + #define CGFLOAT_MIN FLT_MIN + #define CGFLOAT_MAX FLT_MAX + #define CGFLOAT_IS_DOUBLE 0 + #endif /* !defined(__LP64__) || !__LP64__ */ + #define CGFLOAT_DEFINED 1 + #endif // CGFLOAT_DEFINED +#endif // MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5 + +// Some support for advanced clang static analysis functionality +// See http://clang-analyzer.llvm.org/annotations.html +#ifndef __has_feature // Optional. + #define __has_feature(x) 0 // Compatibility with non-clang compilers. +#endif + +#ifndef NS_RETURNS_RETAINED + #if __has_feature(attribute_ns_returns_retained) + #define NS_RETURNS_RETAINED __attribute__((ns_returns_retained)) + #else + #define NS_RETURNS_RETAINED + #endif +#endif + +#ifndef NS_RETURNS_NOT_RETAINED + #if __has_feature(attribute_ns_returns_not_retained) + #define NS_RETURNS_NOT_RETAINED __attribute__((ns_returns_not_retained)) + #else + #define NS_RETURNS_NOT_RETAINED + #endif +#endif + +#ifndef CF_RETURNS_RETAINED + #if __has_feature(attribute_cf_returns_retained) + #define CF_RETURNS_RETAINED __attribute__((cf_returns_retained)) + #else + #define CF_RETURNS_RETAINED + #endif +#endif + +#ifndef CF_RETURNS_NOT_RETAINED + #if __has_feature(attribute_cf_returns_not_retained) + #define CF_RETURNS_NOT_RETAINED __attribute__((cf_returns_not_retained)) + #else + #define CF_RETURNS_NOT_RETAINED + #endif +#endif + +#ifndef NS_CONSUMED + #if __has_feature(attribute_ns_consumed) + #define NS_CONSUMED __attribute__((ns_consumed)) + #else + #define NS_CONSUMED + #endif +#endif + +#ifndef CF_CONSUMED + #if __has_feature(attribute_cf_consumed) + #define CF_CONSUMED __attribute__((cf_consumed)) + #else + #define CF_CONSUMED + #endif +#endif + +#ifndef NS_CONSUMES_SELF + #if __has_feature(attribute_ns_consumes_self) + #define NS_CONSUMES_SELF __attribute__((ns_consumes_self)) + #else + #define NS_CONSUMES_SELF + #endif +#endif + +// Defined on 10.6 and above. +#ifndef NS_FORMAT_ARGUMENT + #define NS_FORMAT_ARGUMENT(A) +#endif + +// Defined on 10.6 and above. +#ifndef NS_FORMAT_FUNCTION + #define NS_FORMAT_FUNCTION(F,A) +#endif + +// Defined on 10.6 and above. +#ifndef CF_FORMAT_ARGUMENT + #define CF_FORMAT_ARGUMENT(A) +#endif + +// Defined on 10.6 and above. +#ifndef CF_FORMAT_FUNCTION + #define CF_FORMAT_FUNCTION(F,A) +#endif + +#ifndef GTM_NONNULL + #if defined(__has_attribute) + #if __has_attribute(nonnull) + #define GTM_NONNULL(x) __attribute__((nonnull x)) + #else + #define GTM_NONNULL(x) + #endif + #else + #define GTM_NONNULL(x) + #endif +#endif + +// Invalidates the initializer from which it's called. +#ifndef GTMInvalidateInitializer + #if __has_feature(objc_arc) + #define GTMInvalidateInitializer() \ + do { \ + [self class]; /* Avoid warning of dead store to |self|. */ \ + _GTMDevAssert(NO, @"Invalid initializer."); \ + return nil; \ + } while (0) + #else + #define GTMInvalidateInitializer() \ + do { \ + [self release]; \ + _GTMDevAssert(NO, @"Invalid initializer."); \ + return nil; \ + } while (0) + #endif +#endif + +#ifndef GTMCFAutorelease + #if __has_feature(objc_arc) + #define GTMCFAutorelease(x) CFBridgingRelease(x) + #else + #define GTMCFAutorelease(x) ([(id)x autorelease]) + #endif +#endif + +#ifdef __OBJC__ + +// Declared here so that it can easily be used for logging tracking if +// necessary. See GTMUnitTestDevLog.h for details. +@class NSString; +GTM_EXTERN void _GTMUnitTestDevLog(NSString *format, ...) NS_FORMAT_FUNCTION(1, 2); + +// Macro to allow you to create NSStrings out of other macros. +// #define FOO foo +// NSString *fooString = GTM_NSSTRINGIFY(FOO); +#if !defined (GTM_NSSTRINGIFY) + #define GTM_NSSTRINGIFY_INNER(x) @#x + #define GTM_NSSTRINGIFY(x) GTM_NSSTRINGIFY_INNER(x) +#endif + +// Macro to allow fast enumeration when building for 10.5 or later, and +// reliance on NSEnumerator for 10.4. Remember, NSDictionary w/ FastEnumeration +// does keys, so pick the right thing, nothing is done on the FastEnumeration +// side to be sure you're getting what you wanted. +#ifndef GTM_FOREACH_OBJECT + #if TARGET_OS_IPHONE || !(MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5) + #define GTM_FOREACH_ENUMEREE(element, enumeration) \ + for (element in enumeration) + #define GTM_FOREACH_OBJECT(element, collection) \ + for (element in collection) + #define GTM_FOREACH_KEY(element, collection) \ + for (element in collection) + #else + #define GTM_FOREACH_ENUMEREE(element, enumeration) \ + for (NSEnumerator *_ ## element ## _enum = enumeration; \ + (element = [_ ## element ## _enum nextObject]) != nil; ) + #define GTM_FOREACH_OBJECT(element, collection) \ + GTM_FOREACH_ENUMEREE(element, [collection objectEnumerator]) + #define GTM_FOREACH_KEY(element, collection) \ + GTM_FOREACH_ENUMEREE(element, [collection keyEnumerator]) + #endif +#endif + +// ============================================================================ + +// To simplify support for both Leopard and Snow Leopard we declare +// the Snow Leopard protocols that we need here. +#if !defined(GTM_10_6_PROTOCOLS_DEFINED) && !(MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6) +#define GTM_10_6_PROTOCOLS_DEFINED 1 +@protocol NSConnectionDelegate +@end +@protocol NSAnimationDelegate +@end +@protocol NSImageDelegate +@end +@protocol NSTabViewDelegate +@end +#endif // !defined(GTM_10_6_PROTOCOLS_DEFINED) && !(MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6) + +// GTM_SEL_STRING is for specifying selector (usually property) names to KVC +// or KVO methods. +// In debug it will generate warnings for undeclared selectors if +// -Wunknown-selector is turned on. +// In release it will have no runtime overhead. +#ifndef GTM_SEL_STRING + #ifdef DEBUG + #define GTM_SEL_STRING(selName) NSStringFromSelector(@selector(selName)) + #else + #define GTM_SEL_STRING(selName) @#selName + #endif // DEBUG +#endif // GTM_SEL_STRING + +#endif // __OBJC__ diff --git a/3rdParty/Breakpad/src/common/mac/GTMLogger.h b/3rdParty/Breakpad/src/common/mac/GTMLogger.h new file mode 100644 index 0000000..c4fd140 --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/GTMLogger.h @@ -0,0 +1,504 @@ +// +// GTMLogger.h +// +// Copyright 2007-2008 Google Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy +// of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. +// + +// Key Abstractions +// ---------------- +// +// This file declares multiple classes and protocols that are used by the +// GTMLogger logging system. The 4 main abstractions used in this file are the +// following: +// +// * logger (GTMLogger) - The main logging class that users interact with. It +// has methods for logging at different levels and uses a log writer, a log +// formatter, and a log filter to get the job done. +// +// * log writer (GTMLogWriter) - Writes a given string to some log file, where +// a "log file" can be a physical file on disk, a POST over HTTP to some URL, +// or even some in-memory structure (e.g., a ring buffer). +// +// * log formatter (GTMLogFormatter) - Given a format string and arguments as +// a va_list, returns a single formatted NSString. A "formatted string" could +// be a string with the date prepended, a string with values in a CSV format, +// or even a string of XML. +// +// * log filter (GTMLogFilter) - Given a formatted log message as an NSString +// and the level at which the message is to be logged, this class will decide +// whether the given message should be logged or not. This is a flexible way +// to filter out messages logged at a certain level, messages that contain +// certain text, or filter nothing out at all. This gives the caller the +// flexibility to dynamically enable debug logging in Release builds. +// +// This file also declares some classes to handle the common log writer, log +// formatter, and log filter cases. Callers can also create their own writers, +// formatters, and filters and they can even build them on top of the ones +// declared here. Keep in mind that your custom writer/formatter/filter may be +// called from multiple threads, so it must be thread-safe. + +#import <Foundation/Foundation.h> +#import "GTMDefines.h" + +// Predeclaration of used protocols that are declared later in this file. +@protocol GTMLogWriter, GTMLogFormatter, GTMLogFilter; + +// GTMLogger +// +// GTMLogger is the primary user-facing class for an object-oriented logging +// system. It is built on the concept of log formatters (GTMLogFormatter), log +// writers (GTMLogWriter), and log filters (GTMLogFilter). When a message is +// sent to a GTMLogger to log a message, the message is formatted using the log +// formatter, then the log filter is consulted to see if the message should be +// logged, and if so, the message is sent to the log writer to be written out. +// +// GTMLogger is intended to be a flexible and thread-safe logging solution. Its +// flexibility comes from the fact that GTMLogger instances can be customized +// with user defined formatters, filters, and writers. And these writers, +// filters, and formatters can be combined, stacked, and customized in arbitrary +// ways to suit the needs at hand. For example, multiple writers can be used at +// the same time, and a GTMLogger instance can even be used as another +// GTMLogger's writer. This allows for arbitrarily deep logging trees. +// +// A standard GTMLogger uses a writer that sends messages to standard out, a +// formatter that smacks a timestamp and a few other bits of interesting +// information on the message, and a filter that filters out debug messages from +// release builds. Using the standard log settings, a log message will look like +// the following: +// +// 2007-12-30 10:29:24.177 myapp[4588/0xa07d0f60] [lvl=1] foo=<Foo: 0x123> +// +// The output contains the date and time of the log message, the name of the +// process followed by its process ID/thread ID, the log level at which the +// message was logged (in the previous example the level was 1: +// kGTMLoggerLevelDebug), and finally, the user-specified log message itself (in +// this case, the log message was @"foo=%@", foo). +// +// Multiple instances of GTMLogger can be created, each configured their own +// way. Though GTMLogger is not a singleton (in the GoF sense), it does provide +// access to a shared (i.e., globally accessible) GTMLogger instance. This makes +// it convenient for all code in a process to use the same GTMLogger instance. +// The shared GTMLogger instance can also be configured in an arbitrary, and +// these configuration changes will affect all code that logs through the shared +// instance. + +// +// Log Levels +// ---------- +// GTMLogger has 3 different log levels: Debug, Info, and Error. GTMLogger +// doesn't take any special action based on the log level; it simply forwards +// this information on to formatters, filters, and writers, each of which may +// optionally take action based on the level. Since log level filtering is +// performed at runtime, log messages are typically not filtered out at compile +// time. The exception to this rule is that calls to the GTMLoggerDebug() macro +// *ARE* filtered out of non-DEBUG builds. This is to be backwards compatible +// with behavior that many developers are currently used to. Note that this +// means that GTMLoggerDebug(@"hi") will be compiled out of Release builds, but +// [[GTMLogger sharedLogger] logDebug:@"hi"] will NOT be compiled out. +// +// Standard loggers are created with the GTMLogLevelFilter log filter, which +// filters out certain log messages based on log level, and some other settings. +// +// In addition to the -logDebug:, -logInfo:, and -logError: methods defined on +// GTMLogger itself, there are also C macros that make usage of the shared +// GTMLogger instance very convenient. These macros are: +// +// GTMLoggerDebug(...) +// GTMLoggerInfo(...) +// GTMLoggerError(...) +// +// Again, a notable feature of these macros is that GTMLogDebug() calls *will be +// compiled out of non-DEBUG builds*. +// +// Standard Loggers +// ---------------- +// GTMLogger has the concept of "standard loggers". A standard logger is simply +// a logger that is pre-configured with some standard/common writer, formatter, +// and filter combination. Standard loggers are created using the creation +// methods beginning with "standard". The alternative to a standard logger is a +// regular logger, which will send messages to stdout, with no special +// formatting, and no filtering. +// +// How do I use GTMLogger? +// ---------------------- +// The typical way you will want to use GTMLogger is to simply use the +// GTMLogger*() macros for logging from code. That way we can easily make +// changes to the GTMLogger class and simply update the macros accordingly. Only +// your application startup code (perhaps, somewhere in main()) should use the +// GTMLogger class directly in order to configure the shared logger, which all +// of the code using the macros will be using. Again, this is just the typical +// situation. +// +// To be complete, there are cases where you may want to use GTMLogger directly, +// or even create separate GTMLogger instances for some reason. That's fine, +// too. +// +// Examples +// -------- +// The following show some common GTMLogger use cases. +// +// 1. You want to log something as simply as possible. Also, this call will only +// appear in debug builds. In non-DEBUG builds it will be completely removed. +// +// GTMLoggerDebug(@"foo = %@", foo); +// +// 2. The previous example is similar to the following. The major difference is +// that the previous call (example 1) will be compiled out of Release builds +// but this statement will not be compiled out. +// +// [[GTMLogger sharedLogger] logDebug:@"foo = %@", foo]; +// +// 3. Send all logging output from the shared logger to a file. We do this by +// creating an NSFileHandle for writing associated with a file, and setting +// that file handle as the logger's writer. +// +// NSFileHandle *f = [NSFileHandle fileHandleForWritingAtPath:@"/tmp/f.log" +// create:YES]; +// [[GTMLogger sharedLogger] setWriter:f]; +// GTMLoggerError(@"hi"); // This will be sent to /tmp/f.log +// +// 4. Create a new GTMLogger that will log to a file. This example differs from +// the previous one because here we create a new GTMLogger that is different +// from the shared logger. +// +// GTMLogger *logger = [GTMLogger standardLoggerWithPath:@"/tmp/temp.log"]; +// [logger logInfo:@"hi temp log file"]; +// +// 5. Create a logger that writes to stdout and does NOT do any formatting to +// the log message. This might be useful, for example, when writing a help +// screen for a command-line tool to standard output. +// +// GTMLogger *logger = [GTMLogger logger]; +// [logger logInfo:@"%@ version 0.1 usage", progName]; +// +// 6. Send log output to stdout AND to a log file. The trick here is that +// NSArrays function as composite log writers, which means when an array is +// set as the log writer, it forwards all logging messages to all of its +// contained GTMLogWriters. +// +// // Create array of GTMLogWriters +// NSArray *writers = [NSArray arrayWithObjects: +// [NSFileHandle fileHandleForWritingAtPath:@"/tmp/f.log" create:YES], +// [NSFileHandle fileHandleWithStandardOutput], nil]; +// +// GTMLogger *logger = [GTMLogger standardLogger]; +// [logger setWriter:writers]; +// [logger logInfo:@"hi"]; // Output goes to stdout and /tmp/f.log +// +// For futher details on log writers, formatters, and filters, see the +// documentation below. +// +// NOTE: GTMLogger is application level logging. By default it does nothing +// with _GTMDevLog/_GTMDevAssert (see GTMDefines.h). An application can choose +// to bridge _GTMDevLog/_GTMDevAssert to GTMLogger by providing macro +// definitions in its prefix header (see GTMDefines.h for how one would do +// that). +// +@interface GTMLogger : NSObject { + @private + id<GTMLogWriter> writer_; + id<GTMLogFormatter> formatter_; + id<GTMLogFilter> filter_; +} + +// +// Accessors for the shared logger instance +// + +// Returns a shared/global standard GTMLogger instance. Callers should typically +// use this method to get a GTMLogger instance, unless they explicitly want +// their own instance to configure for their own needs. This is the only method +// that returns a shared instance; all the rest return new GTMLogger instances. ++ (id)sharedLogger; + +// Sets the shared logger instance to |logger|. Future calls to +sharedLogger +// will return |logger| instead. ++ (void)setSharedLogger:(GTMLogger *)logger; + +// +// Creation methods +// + +// Returns a new autoreleased GTMLogger instance that will log to stdout, using +// the GTMLogStandardFormatter, and the GTMLogLevelFilter filter. ++ (id)standardLogger; + +// Same as +standardLogger, but logs to stderr. ++ (id)standardLoggerWithStderr; + +// Same as +standardLogger but levels >= kGTMLoggerLevelError are routed to +// stderr, everything else goes to stdout. ++ (id)standardLoggerWithStdoutAndStderr; + +// Returns a new standard GTMLogger instance with a log writer that will +// write to the file at |path|, and will use the GTMLogStandardFormatter and +// GTMLogLevelFilter classes. If |path| does not exist, it will be created. ++ (id)standardLoggerWithPath:(NSString *)path; + +// Returns an autoreleased GTMLogger instance that will use the specified +// |writer|, |formatter|, and |filter|. ++ (id)loggerWithWriter:(id<GTMLogWriter>)writer + formatter:(id<GTMLogFormatter>)formatter + filter:(id<GTMLogFilter>)filter; + +// Returns an autoreleased GTMLogger instance that logs to stdout, with the +// basic formatter, and no filter. The returned logger differs from the logger +// returned by +standardLogger because this one does not do any filtering and +// does not do any special log formatting; this is the difference between a +// "regular" logger and a "standard" logger. ++ (id)logger; + +// Designated initializer. This method returns a GTMLogger initialized with the +// specified |writer|, |formatter|, and |filter|. See the setter methods below +// for what values will be used if nil is passed for a parameter. +- (id)initWithWriter:(id<GTMLogWriter>)writer + formatter:(id<GTMLogFormatter>)formatter + filter:(id<GTMLogFilter>)filter; + +// +// Logging methods +// + +// Logs a message at the debug level (kGTMLoggerLevelDebug). +- (void)logDebug:(NSString *)fmt, ... NS_FORMAT_FUNCTION(1, 2); +// Logs a message at the info level (kGTMLoggerLevelInfo). +- (void)logInfo:(NSString *)fmt, ... NS_FORMAT_FUNCTION(1, 2); +// Logs a message at the error level (kGTMLoggerLevelError). +- (void)logError:(NSString *)fmt, ... NS_FORMAT_FUNCTION(1, 2); +// Logs a message at the assert level (kGTMLoggerLevelAssert). +- (void)logAssert:(NSString *)fmt, ... NS_FORMAT_FUNCTION(1, 2); + + +// +// Accessors +// + +// Accessor methods for the log writer. If the log writer is set to nil, +// [NSFileHandle fileHandleWithStandardOutput] is used. +- (id<GTMLogWriter>)writer; +- (void)setWriter:(id<GTMLogWriter>)writer; + +// Accessor methods for the log formatter. If the log formatter is set to nil, +// GTMLogBasicFormatter is used. This formatter will format log messages in a +// plain printf style. +- (id<GTMLogFormatter>)formatter; +- (void)setFormatter:(id<GTMLogFormatter>)formatter; + +// Accessor methods for the log filter. If the log filter is set to nil, +// GTMLogNoFilter is used, which allows all log messages through. +- (id<GTMLogFilter>)filter; +- (void)setFilter:(id<GTMLogFilter>)filter; + +@end // GTMLogger + + +// Helper functions that are used by the convenience GTMLogger*() macros that +// enable the logging of function names. +@interface GTMLogger (GTMLoggerMacroHelpers) +- (void)logFuncDebug:(const char *)func msg:(NSString *)fmt, ... + NS_FORMAT_FUNCTION(2, 3); +- (void)logFuncInfo:(const char *)func msg:(NSString *)fmt, ... + NS_FORMAT_FUNCTION(2, 3); +- (void)logFuncError:(const char *)func msg:(NSString *)fmt, ... + NS_FORMAT_FUNCTION(2, 3); +- (void)logFuncAssert:(const char *)func msg:(NSString *)fmt, ... + NS_FORMAT_FUNCTION(2, 3); +@end // GTMLoggerMacroHelpers + + +// The convenience macros are only defined if they haven't already been defined. +#ifndef GTMLoggerInfo + +// Convenience macros that log to the shared GTMLogger instance. These macros +// are how users should typically log to GTMLogger. Notice that GTMLoggerDebug() +// calls will be compiled out of non-Debug builds. +#define GTMLoggerDebug(...) \ + [[GTMLogger sharedLogger] logFuncDebug:__func__ msg:__VA_ARGS__] +#define GTMLoggerInfo(...) \ + [[GTMLogger sharedLogger] logFuncInfo:__func__ msg:__VA_ARGS__] +#define GTMLoggerError(...) \ + [[GTMLogger sharedLogger] logFuncError:__func__ msg:__VA_ARGS__] +#define GTMLoggerAssert(...) \ + [[GTMLogger sharedLogger] logFuncAssert:__func__ msg:__VA_ARGS__] + +// If we're not in a debug build, remove the GTMLoggerDebug statements. This +// makes calls to GTMLoggerDebug "compile out" of Release builds +#ifndef DEBUG +#undef GTMLoggerDebug +#define GTMLoggerDebug(...) do {} while(0) +#endif + +#endif // !defined(GTMLoggerInfo) + +// Log levels. +typedef enum { + kGTMLoggerLevelUnknown, + kGTMLoggerLevelDebug, + kGTMLoggerLevelInfo, + kGTMLoggerLevelError, + kGTMLoggerLevelAssert, +} GTMLoggerLevel; + + +// +// Log Writers +// + +// Protocol to be implemented by a GTMLogWriter instance. +@protocol GTMLogWriter <NSObject> +// Writes the given log message to where the log writer is configured to write. +- (void)logMessage:(NSString *)msg level:(GTMLoggerLevel)level; +@end // GTMLogWriter + + +// Simple category on NSFileHandle that makes NSFileHandles valid log writers. +// This is convenient because something like, say, +fileHandleWithStandardError +// now becomes a valid log writer. Log messages are written to the file handle +// with a newline appended. +@interface NSFileHandle (GTMFileHandleLogWriter) <GTMLogWriter> +// Opens the file at |path| in append mode, and creates the file with |mode| +// if it didn't previously exist. ++ (id)fileHandleForLoggingAtPath:(NSString *)path mode:(mode_t)mode; +@end // NSFileHandle + + +// This category makes NSArray a GTMLogWriter that can be composed of other +// GTMLogWriters. This is the classic Composite GoF design pattern. When the +// GTMLogWriter -logMessage:level: message is sent to the array, the array +// forwards the message to all of its elements that implement the GTMLogWriter +// protocol. +// +// This is useful in situations where you would like to send log output to +// multiple log writers at the same time. Simply create an NSArray of the log +// writers you wish to use, then set the array as the "writer" for your +// GTMLogger instance. +@interface NSArray (GTMArrayCompositeLogWriter) <GTMLogWriter> +@end // GTMArrayCompositeLogWriter + + +// This category adapts the GTMLogger interface so that it can be used as a log +// writer; it's an "adapter" in the GoF Adapter pattern sense. +// +// This is useful when you want to configure a logger to log to a specific +// writer with a specific formatter and/or filter. But you want to also compose +// that with a different log writer that may have its own formatter and/or +// filter. +@interface GTMLogger (GTMLoggerLogWriter) <GTMLogWriter> +@end // GTMLoggerLogWriter + + +// +// Log Formatters +// + +// Protocol to be implemented by a GTMLogFormatter instance. +@protocol GTMLogFormatter <NSObject> +// Returns a formatted string using the format specified in |fmt| and the va +// args specified in |args|. +- (NSString *)stringForFunc:(NSString *)func + withFormat:(NSString *)fmt + valist:(va_list)args + level:(GTMLoggerLevel)level NS_FORMAT_FUNCTION(2, 0); +@end // GTMLogFormatter + + +// A basic log formatter that formats a string the same way that NSLog (or +// printf) would. It does not do anything fancy, nor does it add any data of its +// own. +@interface GTMLogBasicFormatter : NSObject <GTMLogFormatter> + +// Helper method for prettying C99 __func__ and GCC __PRETTY_FUNCTION__ +- (NSString *)prettyNameForFunc:(NSString *)func; + +@end // GTMLogBasicFormatter + + +// A log formatter that formats the log string like the basic formatter, but +// also prepends a timestamp and some basic process info to the message, as +// shown in the following sample output. +// 2007-12-30 10:29:24.177 myapp[4588/0xa07d0f60] [lvl=1] log mesage here +@interface GTMLogStandardFormatter : GTMLogBasicFormatter { + @private + NSDateFormatter *dateFormatter_; // yyyy-MM-dd HH:mm:ss.SSS + NSString *pname_; + pid_t pid_; +} +@end // GTMLogStandardFormatter + + +// +// Log Filters +// + +// Protocol to be imlemented by a GTMLogFilter instance. +@protocol GTMLogFilter <NSObject> +// Returns YES if |msg| at |level| should be filtered out; NO otherwise. +- (BOOL)filterAllowsMessage:(NSString *)msg level:(GTMLoggerLevel)level; +@end // GTMLogFilter + + +// A log filter that filters messages at the kGTMLoggerLevelDebug level out of +// non-debug builds. Messages at the kGTMLoggerLevelInfo level are also filtered +// out of non-debug builds unless GTMVerboseLogging is set in the environment or +// the processes's defaults. Messages at the kGTMLoggerLevelError level are +// never filtered. +@interface GTMLogLevelFilter : NSObject <GTMLogFilter> +@end // GTMLogLevelFilter + +// A simple log filter that does NOT filter anything out; +// -filterAllowsMessage:level will always return YES. This can be a convenient +// way to enable debug-level logging in release builds (if you so desire). +@interface GTMLogNoFilter : NSObject <GTMLogFilter> +@end // GTMLogNoFilter + + +// Base class for custom level filters. Not for direct use, use the minimum +// or maximum level subclasses below. +@interface GTMLogAllowedLevelFilter : NSObject <GTMLogFilter> { + @private + NSIndexSet *allowedLevels_; +} +@end + +// A log filter that allows you to set a minimum log level. Messages below this +// level will be filtered. +@interface GTMLogMininumLevelFilter : GTMLogAllowedLevelFilter + +// Designated initializer, logs at levels < |level| will be filtered. +- (id)initWithMinimumLevel:(GTMLoggerLevel)level; + +@end + +// A log filter that allows you to set a maximum log level. Messages whose level +// exceeds this level will be filtered. This is really only useful if you have +// a composite GTMLogger that is sending the other messages elsewhere. +@interface GTMLogMaximumLevelFilter : GTMLogAllowedLevelFilter + +// Designated initializer, logs at levels > |level| will be filtered. +- (id)initWithMaximumLevel:(GTMLoggerLevel)level; + +@end + + +// For subclasses only +@interface GTMLogger (PrivateMethods) + +- (void)logInternalFunc:(const char *)func + format:(NSString *)fmt + valist:(va_list)args + level:(GTMLoggerLevel)level NS_FORMAT_FUNCTION(2, 0); + +@end + diff --git a/3rdParty/Breakpad/src/common/mac/GTMLogger.m b/3rdParty/Breakpad/src/common/mac/GTMLogger.m new file mode 100644 index 0000000..ebc5836 --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/GTMLogger.m @@ -0,0 +1,611 @@ +// +// GTMLogger.m +// +// Copyright 2007-2008 Google Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy +// of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. +// + +#import "GTMLogger.h" +#import <fcntl.h> +#import <unistd.h> +#import <stdlib.h> +#import <pthread.h> + + +#if !defined(__clang__) && (__GNUC__*10+__GNUC_MINOR__ >= 42) +// Some versions of GCC (4.2 and below AFAIK) aren't great about supporting +// -Wmissing-format-attribute +// when the function is anything more complex than foo(NSString *fmt, ...). +// You see the error inside the function when you turn ... into va_args and +// attempt to call another function (like vsprintf for example). +// So we just shut off the warning for this file. We reenable it at the end. +#pragma GCC diagnostic ignored "-Wmissing-format-attribute" +#endif // !__clang__ + +// Reference to the shared GTMLogger instance. This is not a singleton, it's +// just an easy reference to one shared instance. +static GTMLogger *gSharedLogger = nil; + + +@implementation GTMLogger + +// Returns a pointer to the shared logger instance. If none exists, a standard +// logger is created and returned. ++ (id)sharedLogger { + @synchronized(self) { + if (gSharedLogger == nil) { + gSharedLogger = [[self standardLogger] retain]; + } + } + return [[gSharedLogger retain] autorelease]; +} + ++ (void)setSharedLogger:(GTMLogger *)logger { + @synchronized(self) { + [gSharedLogger autorelease]; + gSharedLogger = [logger retain]; + } +} + ++ (id)standardLogger { + // Don't trust NSFileHandle not to throw + @try { + id<GTMLogWriter> writer = [NSFileHandle fileHandleWithStandardOutput]; + id<GTMLogFormatter> fr = [[[GTMLogStandardFormatter alloc] init] + autorelease]; + id<GTMLogFilter> filter = [[[GTMLogLevelFilter alloc] init] autorelease]; + return [[[self alloc] initWithWriter:writer + formatter:fr + filter:filter] autorelease]; + } + @catch (id e) { + // Ignored + } + return nil; +} + ++ (id)standardLoggerWithStderr { + // Don't trust NSFileHandle not to throw + @try { + id me = [self standardLogger]; + [me setWriter:[NSFileHandle fileHandleWithStandardError]]; + return me; + } + @catch (id e) { + // Ignored + } + return nil; +} + ++ (id)standardLoggerWithStdoutAndStderr { + // We're going to take advantage of the GTMLogger to GTMLogWriter adaptor + // and create a composite logger that an outer "standard" logger can use + // as a writer. Our inner loggers should apply no formatting since the main + // logger does that and we want the caller to be able to change formatters + // or add writers without knowing the inner structure of our composite. + + // Don't trust NSFileHandle not to throw + @try { + GTMLogBasicFormatter *formatter = [[[GTMLogBasicFormatter alloc] init] + autorelease]; + GTMLogger *stdoutLogger = + [self loggerWithWriter:[NSFileHandle fileHandleWithStandardOutput] + formatter:formatter + filter:[[[GTMLogMaximumLevelFilter alloc] + initWithMaximumLevel:kGTMLoggerLevelInfo] + autorelease]]; + GTMLogger *stderrLogger = + [self loggerWithWriter:[NSFileHandle fileHandleWithStandardError] + formatter:formatter + filter:[[[GTMLogMininumLevelFilter alloc] + initWithMinimumLevel:kGTMLoggerLevelError] + autorelease]]; + GTMLogger *compositeWriter = + [self loggerWithWriter:[NSArray arrayWithObjects: + stdoutLogger, stderrLogger, nil] + formatter:formatter + filter:[[[GTMLogNoFilter alloc] init] autorelease]]; + GTMLogger *outerLogger = [self standardLogger]; + [outerLogger setWriter:compositeWriter]; + return outerLogger; + } + @catch (id e) { + // Ignored + } + return nil; +} + ++ (id)standardLoggerWithPath:(NSString *)path { + @try { + NSFileHandle *fh = [NSFileHandle fileHandleForLoggingAtPath:path mode:0644]; + if (fh == nil) return nil; + id me = [self standardLogger]; + [me setWriter:fh]; + return me; + } + @catch (id e) { + // Ignored + } + return nil; +} + ++ (id)loggerWithWriter:(id<GTMLogWriter>)writer + formatter:(id<GTMLogFormatter>)formatter + filter:(id<GTMLogFilter>)filter { + return [[[self alloc] initWithWriter:writer + formatter:formatter + filter:filter] autorelease]; +} + ++ (id)logger { + return [[[self alloc] init] autorelease]; +} + +- (id)init { + return [self initWithWriter:nil formatter:nil filter:nil]; +} + +- (id)initWithWriter:(id<GTMLogWriter>)writer + formatter:(id<GTMLogFormatter>)formatter + filter:(id<GTMLogFilter>)filter { + if ((self = [super init])) { + [self setWriter:writer]; + [self setFormatter:formatter]; + [self setFilter:filter]; + } + return self; +} + +- (void)dealloc { + // Unlikely, but |writer_| may be an NSFileHandle, which can throw + @try { + [formatter_ release]; + [filter_ release]; + [writer_ release]; + } + @catch (id e) { + // Ignored + } + [super dealloc]; +} + +- (id<GTMLogWriter>)writer { + return [[writer_ retain] autorelease]; +} + +- (void)setWriter:(id<GTMLogWriter>)writer { + @synchronized(self) { + [writer_ autorelease]; + writer_ = nil; + if (writer == nil) { + // Try to use stdout, but don't trust NSFileHandle + @try { + writer_ = [[NSFileHandle fileHandleWithStandardOutput] retain]; + } + @catch (id e) { + // Leave |writer_| nil + } + } else { + writer_ = [writer retain]; + } + } +} + +- (id<GTMLogFormatter>)formatter { + return [[formatter_ retain] autorelease]; +} + +- (void)setFormatter:(id<GTMLogFormatter>)formatter { + @synchronized(self) { + [formatter_ autorelease]; + formatter_ = nil; + if (formatter == nil) { + @try { + formatter_ = [[GTMLogBasicFormatter alloc] init]; + } + @catch (id e) { + // Leave |formatter_| nil + } + } else { + formatter_ = [formatter retain]; + } + } +} + +- (id<GTMLogFilter>)filter { + return [[filter_ retain] autorelease]; +} + +- (void)setFilter:(id<GTMLogFilter>)filter { + @synchronized(self) { + [filter_ autorelease]; + filter_ = nil; + if (filter == nil) { + @try { + filter_ = [[GTMLogNoFilter alloc] init]; + } + @catch (id e) { + // Leave |filter_| nil + } + } else { + filter_ = [filter retain]; + } + } +} + +- (void)logDebug:(NSString *)fmt, ... { + va_list args; + va_start(args, fmt); + [self logInternalFunc:NULL format:fmt valist:args level:kGTMLoggerLevelDebug]; + va_end(args); +} + +- (void)logInfo:(NSString *)fmt, ... { + va_list args; + va_start(args, fmt); + [self logInternalFunc:NULL format:fmt valist:args level:kGTMLoggerLevelInfo]; + va_end(args); +} + +- (void)logError:(NSString *)fmt, ... { + va_list args; + va_start(args, fmt); + [self logInternalFunc:NULL format:fmt valist:args level:kGTMLoggerLevelError]; + va_end(args); +} + +- (void)logAssert:(NSString *)fmt, ... { + va_list args; + va_start(args, fmt); + [self logInternalFunc:NULL format:fmt valist:args level:kGTMLoggerLevelAssert]; + va_end(args); +} + +@end // GTMLogger + +@implementation GTMLogger (GTMLoggerMacroHelpers) + +- (void)logFuncDebug:(const char *)func msg:(NSString *)fmt, ... { + va_list args; + va_start(args, fmt); + [self logInternalFunc:func format:fmt valist:args level:kGTMLoggerLevelDebug]; + va_end(args); +} + +- (void)logFuncInfo:(const char *)func msg:(NSString *)fmt, ... { + va_list args; + va_start(args, fmt); + [self logInternalFunc:func format:fmt valist:args level:kGTMLoggerLevelInfo]; + va_end(args); +} + +- (void)logFuncError:(const char *)func msg:(NSString *)fmt, ... { + va_list args; + va_start(args, fmt); + [self logInternalFunc:func format:fmt valist:args level:kGTMLoggerLevelError]; + va_end(args); +} + +- (void)logFuncAssert:(const char *)func msg:(NSString *)fmt, ... { + va_list args; + va_start(args, fmt); + [self logInternalFunc:func format:fmt valist:args level:kGTMLoggerLevelAssert]; + va_end(args); +} + +@end // GTMLoggerMacroHelpers + +@implementation GTMLogger (PrivateMethods) + +- (void)logInternalFunc:(const char *)func + format:(NSString *)fmt + valist:(va_list)args + level:(GTMLoggerLevel)level { + // Primary point where logging happens, logging should never throw, catch + // everything. + @try { + NSString *fname = func ? [NSString stringWithUTF8String:func] : nil; + NSString *msg = [formatter_ stringForFunc:fname + withFormat:fmt + valist:args + level:level]; + if (msg && [filter_ filterAllowsMessage:msg level:level]) + [writer_ logMessage:msg level:level]; + } + @catch (id e) { + // Ignored + } +} + +@end // PrivateMethods + + +@implementation NSFileHandle (GTMFileHandleLogWriter) + ++ (id)fileHandleForLoggingAtPath:(NSString *)path mode:(mode_t)mode { + int fd = -1; + if (path) { + int flags = O_WRONLY | O_APPEND | O_CREAT; + fd = open([path fileSystemRepresentation], flags, mode); + } + if (fd == -1) return nil; + return [[[self alloc] initWithFileDescriptor:fd + closeOnDealloc:YES] autorelease]; +} + +- (void)logMessage:(NSString *)msg level:(GTMLoggerLevel)level { + @synchronized(self) { + // Closed pipes should not generate exceptions in our caller. Catch here + // as well [GTMLogger logInternalFunc:...] so that an exception in this + // writer does not prevent other writers from having a chance. + @try { + NSString *line = [NSString stringWithFormat:@"%@\n", msg]; + [self writeData:[line dataUsingEncoding:NSUTF8StringEncoding]]; + } + @catch (id e) { + // Ignored + } + } +} + +@end // GTMFileHandleLogWriter + + +@implementation NSArray (GTMArrayCompositeLogWriter) + +- (void)logMessage:(NSString *)msg level:(GTMLoggerLevel)level { + @synchronized(self) { + id<GTMLogWriter> child = nil; + GTM_FOREACH_OBJECT(child, self) { + if ([child conformsToProtocol:@protocol(GTMLogWriter)]) + [child logMessage:msg level:level]; + } + } +} + +@end // GTMArrayCompositeLogWriter + + +@implementation GTMLogger (GTMLoggerLogWriter) + +- (void)logMessage:(NSString *)msg level:(GTMLoggerLevel)level { + switch (level) { + case kGTMLoggerLevelDebug: + [self logDebug:@"%@", msg]; + break; + case kGTMLoggerLevelInfo: + [self logInfo:@"%@", msg]; + break; + case kGTMLoggerLevelError: + [self logError:@"%@", msg]; + break; + case kGTMLoggerLevelAssert: + [self logAssert:@"%@", msg]; + break; + default: + // Ignore the message. + break; + } +} + +@end // GTMLoggerLogWriter + + +@implementation GTMLogBasicFormatter + +- (NSString *)prettyNameForFunc:(NSString *)func { + NSString *name = [func stringByTrimmingCharactersInSet: + [NSCharacterSet whitespaceAndNewlineCharacterSet]]; + NSString *function = @"(unknown)"; + if ([name length]) { + if (// Objective C __func__ and __PRETTY_FUNCTION__ + [name hasPrefix:@"-["] || [name hasPrefix:@"+["] || + // C++ __PRETTY_FUNCTION__ and other preadorned formats + [name hasSuffix:@")"]) { + function = name; + } else { + // Assume C99 __func__ + function = [NSString stringWithFormat:@"%@()", name]; + } + } + return function; +} + +- (NSString *)stringForFunc:(NSString *)func + withFormat:(NSString *)fmt + valist:(va_list)args + level:(GTMLoggerLevel)level { + // Performance note: We may want to do a quick check here to see if |fmt| + // contains a '%', and if not, simply return 'fmt'. + if (!(fmt && args)) return nil; + return [[[NSString alloc] initWithFormat:fmt arguments:args] autorelease]; +} + +@end // GTMLogBasicFormatter + + +@implementation GTMLogStandardFormatter + +- (id)init { + if ((self = [super init])) { + dateFormatter_ = [[NSDateFormatter alloc] init]; + [dateFormatter_ setFormatterBehavior:NSDateFormatterBehavior10_4]; + [dateFormatter_ setDateFormat:@"yyyy-MM-dd HH:mm:ss.SSS"]; + pname_ = [[[NSProcessInfo processInfo] processName] copy]; + pid_ = [[NSProcessInfo processInfo] processIdentifier]; + if (!(dateFormatter_ && pname_)) { + [self release]; + return nil; + } + } + return self; +} + +- (void)dealloc { + [dateFormatter_ release]; + [pname_ release]; + [super dealloc]; +} + +- (NSString *)stringForFunc:(NSString *)func + withFormat:(NSString *)fmt + valist:(va_list)args + level:(GTMLoggerLevel)level { + NSString *tstamp = nil; + @synchronized (dateFormatter_) { + tstamp = [dateFormatter_ stringFromDate:[NSDate date]]; + } + return [NSString stringWithFormat:@"%@ %@[%d/%p] [lvl=%d] %@ %@", + tstamp, pname_, pid_, pthread_self(), + level, [self prettyNameForFunc:func], + // |super| has guard for nil |fmt| and |args| + [super stringForFunc:func withFormat:fmt valist:args level:level]]; +} + +@end // GTMLogStandardFormatter + + +@implementation GTMLogLevelFilter + +// Check the environment and the user preferences for the GTMVerboseLogging key +// to see if verbose logging has been enabled. The environment variable will +// override the defaults setting, so check the environment first. +// COV_NF_START +static BOOL IsVerboseLoggingEnabled(void) { + static NSString *const kVerboseLoggingKey = @"GTMVerboseLogging"; + NSString *value = [[[NSProcessInfo processInfo] environment] + objectForKey:kVerboseLoggingKey]; + if (value) { + // Emulate [NSString boolValue] for pre-10.5 + value = [value stringByTrimmingCharactersInSet: + [NSCharacterSet whitespaceAndNewlineCharacterSet]]; + if ([[value uppercaseString] hasPrefix:@"Y"] || + [[value uppercaseString] hasPrefix:@"T"] || + [value intValue]) { + return YES; + } else { + return NO; + } + } + return [[NSUserDefaults standardUserDefaults] boolForKey:kVerboseLoggingKey]; +} +// COV_NF_END + +// In DEBUG builds, log everything. If we're not in a debug build we'll assume +// that we're in a Release build. +- (BOOL)filterAllowsMessage:(NSString *)msg level:(GTMLoggerLevel)level { +#if defined(DEBUG) && DEBUG + return YES; +#endif + + BOOL allow = YES; + + switch (level) { + case kGTMLoggerLevelDebug: + allow = NO; + break; + case kGTMLoggerLevelInfo: + allow = IsVerboseLoggingEnabled(); + break; + case kGTMLoggerLevelError: + allow = YES; + break; + case kGTMLoggerLevelAssert: + allow = YES; + break; + default: + allow = YES; + break; + } + + return allow; +} + +@end // GTMLogLevelFilter + + +@implementation GTMLogNoFilter + +- (BOOL)filterAllowsMessage:(NSString *)msg level:(GTMLoggerLevel)level { + return YES; // Allow everything through +} + +@end // GTMLogNoFilter + + +@implementation GTMLogAllowedLevelFilter + +// Private designated initializer +- (id)initWithAllowedLevels:(NSIndexSet *)levels { + self = [super init]; + if (self != nil) { + allowedLevels_ = [levels retain]; + // Cap min/max level + if (!allowedLevels_ || + // NSIndexSet is unsigned so only check the high bound, but need to + // check both first and last index because NSIndexSet appears to allow + // wraparound. + ([allowedLevels_ firstIndex] > kGTMLoggerLevelAssert) || + ([allowedLevels_ lastIndex] > kGTMLoggerLevelAssert)) { + [self release]; + return nil; + } + } + return self; +} + +- (id)init { + // Allow all levels in default init + return [self initWithAllowedLevels:[NSIndexSet indexSetWithIndexesInRange: + NSMakeRange(kGTMLoggerLevelUnknown, + (kGTMLoggerLevelAssert - kGTMLoggerLevelUnknown + 1))]]; +} + +- (void)dealloc { + [allowedLevels_ release]; + [super dealloc]; +} + +- (BOOL)filterAllowsMessage:(NSString *)msg level:(GTMLoggerLevel)level { + return [allowedLevels_ containsIndex:level]; +} + +@end // GTMLogAllowedLevelFilter + + +@implementation GTMLogMininumLevelFilter + +- (id)initWithMinimumLevel:(GTMLoggerLevel)level { + return [super initWithAllowedLevels:[NSIndexSet indexSetWithIndexesInRange: + NSMakeRange(level, + (kGTMLoggerLevelAssert - level + 1))]]; +} + +@end // GTMLogMininumLevelFilter + + +@implementation GTMLogMaximumLevelFilter + +- (id)initWithMaximumLevel:(GTMLoggerLevel)level { + return [super initWithAllowedLevels:[NSIndexSet indexSetWithIndexesInRange: + NSMakeRange(kGTMLoggerLevelUnknown, level + 1)]]; +} + +@end // GTMLogMaximumLevelFilter + +#if !defined(__clang__) && (__GNUC__*10+__GNUC_MINOR__ >= 42) +// See comment at top of file. +#pragma GCC diagnostic error "-Wmissing-format-attribute" +#endif // !__clang__ + diff --git a/3rdParty/Breakpad/src/common/mac/HTTPMultipartUpload.h b/3rdParty/Breakpad/src/common/mac/HTTPMultipartUpload.h new file mode 100644 index 0000000..42e8fed --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/HTTPMultipartUpload.h @@ -0,0 +1,61 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// HTTPMultipartUpload: A multipart/form-data HTTP uploader. +// Each parameter pair is sent as a boundary +// Each file is sent with a name field in addition to the filename and data +// The data will be sent synchronously. + +#import <Foundation/Foundation.h> + +@interface HTTPMultipartUpload : NSObject { + @protected + NSURL *url_; // The destination URL (STRONG) + NSDictionary *parameters_; // The key/value pairs for sending data (STRONG) + NSMutableDictionary *files_; // Dictionary of name/file-path (STRONG) + NSString *boundary_; // The boundary string (STRONG) + NSHTTPURLResponse *response_; // The response from the send (STRONG) +} + +- (id)initWithURL:(NSURL *)url; + +- (NSURL *)URL; + +- (void)setParameters:(NSDictionary *)parameters; +- (NSDictionary *)parameters; + +- (void)addFileAtPath:(NSString *)path name:(NSString *)name; +- (void)addFileContents:(NSData *)data name:(NSString *)name; +- (NSDictionary *)files; + +// Set the data and return the response +- (NSData *)send:(NSError **)error; +- (NSHTTPURLResponse *)response; + +@end diff --git a/3rdParty/Breakpad/src/common/mac/HTTPMultipartUpload.m b/3rdParty/Breakpad/src/common/mac/HTTPMultipartUpload.m new file mode 100644 index 0000000..f6d081e --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/HTTPMultipartUpload.m @@ -0,0 +1,267 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#import "HTTPMultipartUpload.h" +#import "GTMDefines.h" + +// As -[NSString stringByAddingPercentEscapesUsingEncoding:] has been +// deprecated with iOS 9.0 / OS X 10.11 SDKs, this function re-implements it +// using -[NSString stringByAddingPercentEncodingWithAllowedCharacters:] when +// using those SDKs. +static NSString *PercentEncodeNSString(NSString *key) { +#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && defined(__IPHONE_9_0) && \ + __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_9_0) || \ + (defined(MAC_OS_X_VERSION_MIN_REQUIRED) && \ + defined(MAC_OS_X_VERSION_10_11) && \ + MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_11) + return [key stringByAddingPercentEncodingWithAllowedCharacters: + [NSCharacterSet URLQueryAllowedCharacterSet]]; +#else + return [key stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; +#endif +} + +// As -[NSURLConnection sendSynchronousRequest:returningResponse:error:] has +// been deprecated with iOS 9.0 / OS X 10.11 SDKs, this function re-implements +// it using -[NSURLSession dataTaskWithRequest:completionHandler:] which is +// available on iOS 7+. +static NSData *SendSynchronousNSURLRequest(NSURLRequest *req, + NSURLResponse **out_response, + NSError **out_error) { +#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && defined(__IPHONE_7_0) && \ + __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_7_0) || \ + (defined(MAC_OS_X_VERSION_MIN_REQUIRED) && \ + defined(MAC_OS_X_VERSION_10_11) && \ + MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_11) + __block NSData* result = nil; + __block NSError* error = nil; + __block NSURLResponse* response = nil; + dispatch_semaphore_t wait_semaphone = dispatch_semaphore_create(0); + [[[NSURLSession sharedSession] + dataTaskWithRequest:req + completionHandler:^(NSData *data, + NSURLResponse *resp, + NSError *err) { + if (out_error) + error = [err retain]; + if (out_response) + response = [resp retain]; + if (err == nil) + result = [data retain]; + dispatch_semaphore_signal(wait_semaphone); + }] resume]; + dispatch_semaphore_wait(wait_semaphone, DISPATCH_TIME_FOREVER); + dispatch_release(wait_semaphone); + if (out_error) + *out_error = [error autorelease]; + if (out_response) + *out_response = [response autorelease]; + return [result autorelease]; +#else + return [NSURLConnection sendSynchronousRequest:req + returningResponse:out_response + error:out_error]; +#endif +} +@interface HTTPMultipartUpload(PrivateMethods) +- (NSString *)multipartBoundary; +// Each of the following methods will append the starting multipart boundary, +// but not the ending one. +- (NSData *)formDataForKey:(NSString *)key value:(NSString *)value; +- (NSData *)formDataForFileContents:(NSData *)contents name:(NSString *)name; +- (NSData *)formDataForFile:(NSString *)file name:(NSString *)name; +@end + +@implementation HTTPMultipartUpload +//============================================================================= +#pragma mark - +#pragma mark || Private || +//============================================================================= +- (NSString *)multipartBoundary { + // The boundary has 27 '-' characters followed by 16 hex digits + return [NSString stringWithFormat:@"---------------------------%08X%08X", + rand(), rand()]; +} + +//============================================================================= +- (NSData *)formDataForKey:(NSString *)key value:(NSString *)value { + NSString *escaped = PercentEncodeNSString(key); + NSString *fmt = + @"--%@\r\nContent-Disposition: form-data; name=\"%@\"\r\n\r\n%@\r\n"; + NSString *form = [NSString stringWithFormat:fmt, boundary_, escaped, value]; + + return [form dataUsingEncoding:NSUTF8StringEncoding]; +} + +//============================================================================= +- (NSData *)formDataForFileContents:(NSData *)contents name:(NSString *)name { + NSMutableData *data = [NSMutableData data]; + NSString *escaped = PercentEncodeNSString(name); + NSString *fmt = @"--%@\r\nContent-Disposition: form-data; name=\"%@\"; " + "filename=\"minidump.dmp\"\r\nContent-Type: application/octet-stream\r\n\r\n"; + NSString *pre = [NSString stringWithFormat:fmt, boundary_, escaped]; + + [data appendData:[pre dataUsingEncoding:NSUTF8StringEncoding]]; + [data appendData:contents]; + + return data; +} + +//============================================================================= +- (NSData *)formDataForFile:(NSString *)file name:(NSString *)name { + NSData *contents = [NSData dataWithContentsOfFile:file]; + + return [self formDataForFileContents:contents name:name]; +} + +//============================================================================= +#pragma mark - +#pragma mark || Public || +//============================================================================= +- (id)initWithURL:(NSURL *)url { + if ((self = [super init])) { + url_ = [url copy]; + boundary_ = [[self multipartBoundary] retain]; + files_ = [[NSMutableDictionary alloc] init]; + } + + return self; +} + +//============================================================================= +- (void)dealloc { + [url_ release]; + [parameters_ release]; + [files_ release]; + [boundary_ release]; + [response_ release]; + + [super dealloc]; +} + +//============================================================================= +- (NSURL *)URL { + return url_; +} + +//============================================================================= +- (void)setParameters:(NSDictionary *)parameters { + if (parameters != parameters_) { + [parameters_ release]; + parameters_ = [parameters copy]; + } +} + +//============================================================================= +- (NSDictionary *)parameters { + return parameters_; +} + +//============================================================================= +- (void)addFileAtPath:(NSString *)path name:(NSString *)name { + [files_ setObject:path forKey:name]; +} + +//============================================================================= +- (void)addFileContents:(NSData *)data name:(NSString *)name { + [files_ setObject:data forKey:name]; +} + +//============================================================================= +- (NSDictionary *)files { + return files_; +} + +//============================================================================= +- (NSData *)send:(NSError **)error { + NSMutableURLRequest *req = + [[NSMutableURLRequest alloc] + initWithURL:url_ cachePolicy:NSURLRequestUseProtocolCachePolicy + timeoutInterval:10.0 ]; + + NSMutableData *postBody = [NSMutableData data]; + + [req setValue:[NSString stringWithFormat:@"multipart/form-data; boundary=%@", + boundary_] forHTTPHeaderField:@"Content-type"]; + + // Add any parameters to the message + NSArray *parameterKeys = [parameters_ allKeys]; + NSString *key; + + NSInteger count = [parameterKeys count]; + for (NSInteger i = 0; i < count; ++i) { + key = [parameterKeys objectAtIndex:i]; + [postBody appendData:[self formDataForKey:key + value:[parameters_ objectForKey:key]]]; + } + + // Add any files to the message + NSArray *fileNames = [files_ allKeys]; + for (NSString *name in fileNames) { + id fileOrData = [files_ objectForKey:name]; + NSData *fileData; + + // The object can be either the path to a file (NSString) or the contents + // of the file (NSData). + if ([fileOrData isKindOfClass:[NSData class]]) + fileData = [self formDataForFileContents:fileOrData name:name]; + else + fileData = [self formDataForFile:fileOrData name:name]; + + [postBody appendData:fileData]; + } + + NSString *epilogue = [NSString stringWithFormat:@"\r\n--%@--\r\n", boundary_]; + [postBody appendData:[epilogue dataUsingEncoding:NSUTF8StringEncoding]]; + + [req setHTTPBody:postBody]; + [req setHTTPMethod:@"POST"]; + + [response_ release]; + response_ = nil; + + NSData *data = nil; + if ([[req URL] isFileURL]) { + [[req HTTPBody] writeToURL:[req URL] options:0 error:error]; + } else { + NSURLResponse *response = nil; + data = SendSynchronousNSURLRequest(req, &response, error); + response_ = (NSHTTPURLResponse *)[response retain]; + } + [req release]; + + return data; +} + +//============================================================================= +- (NSHTTPURLResponse *)response { + return response_; +} + +@end diff --git a/3rdParty/Breakpad/src/common/mac/MachIPC.h b/3rdParty/Breakpad/src/common/mac/MachIPC.h index 52bed59..8df9165 100644 --- a/3rdParty/Breakpad/src/common/mac/MachIPC.h +++ b/3rdParty/Breakpad/src/common/mac/MachIPC.h @@ -164,11 +164,11 @@ class MachMessage { public: // The receiver of the message can retrieve the raw data this way - u_int8_t *GetData() { + uint8_t *GetData() { return GetDataLength() > 0 ? GetDataPacket()->data : NULL; } - u_int32_t GetDataLength() { + uint32_t GetDataLength() { return EndianU32_LtoN(GetDataPacket()->data_length); } @@ -210,7 +210,7 @@ class MachMessage { struct MessageDataPacket { int32_t id; // little-endian int32_t data_length; // little-endian - u_int8_t data[1]; // actual size limited by sizeof(MachMessage) + uint8_t data[1]; // actual size limited by sizeof(MachMessage) }; MessageDataPacket* GetDataPacket(); @@ -223,7 +223,7 @@ class MachMessage { mach_msg_header_t head; mach_msg_body_t body; - u_int8_t padding[1024]; // descriptors and data may be embedded here + uint8_t padding[1024]; // descriptors and data may be embedded here }; //============================================================================== diff --git a/3rdParty/Breakpad/src/common/mac/arch_utilities.cc b/3rdParty/Breakpad/src/common/mac/arch_utilities.cc new file mode 100644 index 0000000..c9225e0 --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/arch_utilities.cc @@ -0,0 +1,231 @@ +// Copyright (c) 2012, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "common/mac/arch_utilities.h" + +#include <mach-o/arch.h> +#include <mach-o/fat.h> +#include <stdio.h> +#include <string.h> + +#ifndef CPU_SUBTYPE_ARM_V7S +#define CPU_SUBTYPE_ARM_V7S (static_cast<cpu_subtype_t>(11)) +#endif // CPU_SUBTYPE_ARM_V7S + +#ifndef CPU_TYPE_ARM64 +#define CPU_TYPE_ARM64 (CPU_TYPE_ARM | CPU_ARCH_ABI64) +#endif // CPU_TYPE_ARM64 + +#ifndef CPU_SUBTYPE_ARM64_ALL +#define CPU_SUBTYPE_ARM64_ALL (static_cast<cpu_subtype_t>(0)) +#endif // CPU_SUBTYPE_ARM64_ALL + +namespace { + +const NXArchInfo* ArchInfo_arm64() { + NXArchInfo* arm64 = new NXArchInfo; + *arm64 = *NXGetArchInfoFromCpuType(CPU_TYPE_ARM, + CPU_SUBTYPE_ARM_V7); + arm64->name = "arm64"; + arm64->cputype = CPU_TYPE_ARM64; + arm64->cpusubtype = CPU_SUBTYPE_ARM64_ALL; + arm64->description = "arm 64"; + return arm64; +} + +const NXArchInfo* ArchInfo_armv7s() { + NXArchInfo* armv7s = new NXArchInfo; + *armv7s = *NXGetArchInfoFromCpuType(CPU_TYPE_ARM, + CPU_SUBTYPE_ARM_V7); + armv7s->name = "armv7s"; + armv7s->cpusubtype = CPU_SUBTYPE_ARM_V7S; + armv7s->description = "arm v7s"; + return armv7s; +} + +} // namespace + +namespace google_breakpad { + +const NXArchInfo* BreakpadGetArchInfoFromName(const char* arch_name) { + // TODO: Remove this when the OS knows about arm64. + if (!strcmp("arm64", arch_name)) + return BreakpadGetArchInfoFromCpuType(CPU_TYPE_ARM64, + CPU_SUBTYPE_ARM64_ALL); + + // TODO: Remove this when the OS knows about armv7s. + if (!strcmp("armv7s", arch_name)) + return BreakpadGetArchInfoFromCpuType(CPU_TYPE_ARM, CPU_SUBTYPE_ARM_V7S); + + return NXGetArchInfoFromName(arch_name); +} + +const NXArchInfo* BreakpadGetArchInfoFromCpuType(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype) { + // TODO: Remove this when the OS knows about arm64. + if (cpu_type == CPU_TYPE_ARM64 && cpu_subtype == CPU_SUBTYPE_ARM64_ALL) { + static const NXArchInfo* arm64 = ArchInfo_arm64(); + return arm64; + } + + // TODO: Remove this when the OS knows about armv7s. + if (cpu_type == CPU_TYPE_ARM && cpu_subtype == CPU_SUBTYPE_ARM_V7S) { + static const NXArchInfo* armv7s = ArchInfo_armv7s(); + return armv7s; + } + + return NXGetArchInfoFromCpuType(cpu_type, cpu_subtype); +} + +} // namespace google_breakpad + +#ifndef __APPLE__ +namespace { + +enum Architecture { + kArch_i386 = 0, + kArch_x86_64, + kArch_x86_64h, + kArch_arm, + kArch_arm64, + kArch_ppc, + // This must be last. + kNumArchitectures +}; + +// enum Architecture above and kKnownArchitectures below +// must be kept in sync. +const NXArchInfo kKnownArchitectures[] = { + { + "i386", + CPU_TYPE_I386, + CPU_SUBTYPE_I386_ALL, + NX_LittleEndian, + "Intel 80x86" + }, + { + "x86_64", + CPU_TYPE_X86_64, + CPU_SUBTYPE_X86_64_ALL, + NX_LittleEndian, + "Intel x86-64" + }, + { + "x86_64h", + CPU_TYPE_X86_64, + CPU_SUBTYPE_X86_64_H, + NX_LittleEndian, + "Intel x86-64h Haswell" + }, + { + "arm", + CPU_TYPE_ARM, + CPU_SUBTYPE_ARM_ALL, + NX_LittleEndian, + "ARM" + }, + { + "arm64", + CPU_TYPE_ARM64, + CPU_SUBTYPE_ARM64_ALL, + NX_LittleEndian, + "ARM64" + }, + { + "ppc", + CPU_TYPE_POWERPC, + CPU_SUBTYPE_POWERPC_ALL, + NX_BigEndian, + "PowerPC" + } +}; + +} // namespace + +const NXArchInfo *NXGetLocalArchInfo(void) { + Architecture arch; +#if defined(__i386__) + arch = kArch_i386; +#elif defined(__x86_64__) + arch = kArch_x86_64; +#elif defined(__arm64) + arch = kArch_arm64; +#elif defined(__arm__) + arch = kArch_arm; +#elif defined(__powerpc__) + arch = kArch_ppc; +#else + #error "Unsupported CPU architecture" +#endif + return &kKnownArchitectures[arch]; +} + +const NXArchInfo *NXGetArchInfoFromName(const char *name) { + for (int arch = 0; arch < kNumArchitectures; ++arch) { + if (!strcmp(name, kKnownArchitectures[arch].name)) { + return &kKnownArchitectures[arch]; + } + } + return NULL; +} + +const NXArchInfo *NXGetArchInfoFromCpuType(cpu_type_t cputype, + cpu_subtype_t cpusubtype) { + const NXArchInfo *candidate = NULL; + for (int arch = 0; arch < kNumArchitectures; ++arch) { + if (kKnownArchitectures[arch].cputype == cputype) { + if (kKnownArchitectures[arch].cpusubtype == cpusubtype) { + return &kKnownArchitectures[arch]; + } + if (!candidate) { + candidate = &kKnownArchitectures[arch]; + } + } + } + return candidate; +} + +struct fat_arch *NXFindBestFatArch(cpu_type_t cputype, + cpu_subtype_t cpusubtype, + struct fat_arch *fat_archs, + uint32_t nfat_archs) { + struct fat_arch *candidate = NULL; + for (uint32_t f = 0; f < nfat_archs; ++f) { + if (fat_archs[f].cputype == cputype) { + if (fat_archs[f].cpusubtype == cpusubtype) { + return &fat_archs[f]; + } + if (!candidate) { + candidate = &fat_archs[f]; + } + } + } + return candidate; +} +#endif // !__APPLE__ diff --git a/3rdParty/Breakpad/src/common/mac/arch_utilities.h b/3rdParty/Breakpad/src/common/mac/arch_utilities.h new file mode 100644 index 0000000..397c1f5 --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/arch_utilities.h @@ -0,0 +1,47 @@ +// Copyright (c) 2012, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// arch_utilities.h: Utilities for architecture introspection for Mac platform. + +#ifndef COMMON_MAC_ARCH_UTILITIES_H__ +#define COMMON_MAC_ARCH_UTILITIES_H__ + +#include <mach-o/arch.h> + +namespace google_breakpad { + +// Custom implementation of |NXGetArchInfoFromName| and +// |NXGetArchInfoFromCpuType| that handle newer CPU on older OSes. +const NXArchInfo* BreakpadGetArchInfoFromName(const char* arch_name); +const NXArchInfo* BreakpadGetArchInfoFromCpuType(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype); + +} // namespace google_breakpad + +#endif // COMMON_MAC_ARCH_UTILITIES_H__ diff --git a/3rdParty/Breakpad/src/common/mac/byteswap.h b/3rdParty/Breakpad/src/common/mac/byteswap.h index a5d745b..b7bbc0b 100644 --- a/3rdParty/Breakpad/src/common/mac/byteswap.h +++ b/3rdParty/Breakpad/src/common/mac/byteswap.h @@ -36,6 +36,7 @@ #ifndef COMMON_MAC_BYTESWAP_H_ #define COMMON_MAC_BYTESWAP_H_ +#ifdef __APPLE__ #include <libkern/OSByteOrder.h> static inline uint16_t ByteSwap(uint16_t v) { return OSSwapInt16(v); } @@ -45,4 +46,28 @@ static inline int16_t ByteSwap(int16_t v) { return OSSwapInt16(v); } static inline int32_t ByteSwap(int32_t v) { return OSSwapInt32(v); } static inline int64_t ByteSwap(int64_t v) { return OSSwapInt64(v); } +#elif defined(__linux__) +// For NXByteOrder +#include <architecture/byte_order.h> +#include <stdint.h> +#include <endian.h> +#include_next <byteswap.h> + +static inline uint16_t ByteSwap(uint16_t v) { return bswap_16(v); } +static inline uint32_t ByteSwap(uint32_t v) { return bswap_32(v); } +static inline uint64_t ByteSwap(uint64_t v) { return bswap_64(v); } +static inline int16_t ByteSwap(int16_t v) { return bswap_16(v); } +static inline int32_t ByteSwap(int32_t v) { return bswap_32(v); } +static inline int64_t ByteSwap(int64_t v) { return bswap_64(v); } + +static inline NXByteOrder NXHostByteOrder() { +#ifdef __LITTLE_ENDIAN + return NX_LittleEndian; +#else + return NX_BigEndian; +#endif +} + +#endif // __APPLE__ + #endif // COMMON_MAC_BYTESWAP_H_ diff --git a/3rdParty/Breakpad/src/common/mac/dump_syms.mm b/3rdParty/Breakpad/src/common/mac/dump_syms.cc index 9783514..eb92729 100644 --- a/3rdParty/Breakpad/src/common/mac/dump_syms.mm +++ b/3rdParty/Breakpad/src/common/mac/dump_syms.cc @@ -31,14 +31,21 @@ // Author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> -// dump_syms.mm: Create a symbol file for use with minidumps +// dump_syms.cc: Create a symbol file for use with minidumps #include "common/mac/dump_syms.h" -#include <Foundation/Foundation.h> +#include <assert.h> +#include <dirent.h> +#include <errno.h> +#include <libgen.h> #include <mach-o/arch.h> #include <mach-o/fat.h> +#include <stdint.h> #include <stdio.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <unistd.h> #include <ostream> #include <string> @@ -50,15 +57,22 @@ #include "common/dwarf_cu_to_module.h" #include "common/dwarf_line_to_module.h" #include "common/mac/file_id.h" +#include "common/mac/arch_utilities.h" #include "common/mac/macho_reader.h" #include "common/module.h" +#include "common/scoped_ptr.h" #include "common/stabs_reader.h" #include "common/stabs_to_module.h" +#include "common/symbol_data.h" #ifndef CPU_TYPE_ARM #define CPU_TYPE_ARM (static_cast<cpu_type_t>(12)) #endif // CPU_TYPE_ARM +#ifndef CPU_TYPE_ARM64 +#define CPU_TYPE_ARM64 (static_cast<cpu_type_t>(16777228)) +#endif // CPU_TYPE_ARM64 + using dwarf2reader::ByteReader; using google_breakpad::DwarfCUToModule; using google_breakpad::DwarfLineToModule; @@ -69,109 +83,126 @@ using google_breakpad::mach_o::Segment; using google_breakpad::Module; using google_breakpad::StabsReader; using google_breakpad::StabsToModule; +using google_breakpad::scoped_ptr; using std::make_pair; using std::pair; using std::string; using std::vector; +namespace { +// Return a vector<string> with absolute paths to all the entries +// in directory (excluding . and ..). +vector<string> list_directory(const string& directory) { + vector<string> entries; + DIR* dir = opendir(directory.c_str()); + if (!dir) { + return entries; + } + + string path = directory; + if (path[path.length() - 1] != '/') { + path += '/'; + } + + struct dirent* entry = NULL; + while ((entry = readdir(dir))) { + if (strcmp(entry->d_name, ".") != 0 && strcmp(entry->d_name, "..") != 0) { + entries.push_back(path + entry->d_name); + } + } + + closedir(dir); + return entries; +} +} + namespace google_breakpad { -bool DumpSymbols::Read(NSString *filename) { - if (![[NSFileManager defaultManager] fileExistsAtPath:filename]) { - fprintf(stderr, "Object file does not exist: %s\n", - [filename fileSystemRepresentation]); +bool DumpSymbols::Read(const string &filename) { + struct stat st; + if (stat(filename.c_str(), &st) == -1) { + fprintf(stderr, "Could not access object file %s: %s\n", + filename.c_str(), strerror(errno)); return false; } - input_pathname_ = [filename retain]; + input_pathname_ = filename; // Does this filename refer to a dSYM bundle? - NSBundle *bundle = [NSBundle bundleWithPath:input_pathname_]; - - if (bundle) { - // Filenames referring to bundles usually have names of the form - // "<basename>.dSYM"; however, if the user has specified a wrapper - // suffix (the WRAPPER_SUFFIX and WRAPPER_EXTENSION build settings), - // then the name may have the form "<basename>.<extension>.dSYM". In - // either case, the resource name for the file containing the DWARF - // info within the bundle is <basename>. - // - // Since there's no way to tell how much to strip off, remove one - // extension at a time, and use the first one that - // pathForResource:ofType:inDirectory likes. - NSString *base_name = [input_pathname_ lastPathComponent]; - NSString *dwarf_resource; - - do { - NSString *new_base_name = [base_name stringByDeletingPathExtension]; - - // If stringByDeletingPathExtension returned the name unchanged, then - // there's nothing more for us to strip off --- lose. - if ([new_base_name isEqualToString:base_name]) { - fprintf(stderr, "Unable to find DWARF-bearing file in bundle: %s\n", - [input_pathname_ fileSystemRepresentation]); - return false; - } - - // Take the shortened result as our new base_name. - base_name = new_base_name; - - // Try to find a DWARF resource in the bundle under the new base_name. - dwarf_resource = [bundle pathForResource:base_name - ofType:nil inDirectory:@"DWARF"]; - } while (!dwarf_resource); + string contents_path = input_pathname_ + "/Contents/Resources/DWARF"; + if (S_ISDIR(st.st_mode) && + access(contents_path.c_str(), F_OK) == 0) { + // If there's one file under Contents/Resources/DWARF then use that, + // otherwise bail out. + const vector<string> entries = list_directory(contents_path); + if (entries.size() == 0) { + fprintf(stderr, "Unable to find DWARF-bearing file in bundle: %s\n", + input_pathname_.c_str()); + return false; + } + if (entries.size() > 1) { + fprintf(stderr, "Too many DWARF files in bundle: %s\n", + input_pathname_.c_str()); + return false; + } - object_filename_ = [dwarf_resource retain]; + object_filename_ = entries[0]; } else { - object_filename_ = [input_pathname_ retain]; + object_filename_ = input_pathname_; } // Read the file's contents into memory. - // - // The documentation for dataWithContentsOfMappedFile says: - // - // Because of file mapping restrictions, this method should only be - // used if the file is guaranteed to exist for the duration of the - // data object’s existence. It is generally safer to use the - // dataWithContentsOfFile: method. - // - // I gather this means that OS X doesn't have (or at least, that method - // doesn't use) a form of mapping like Linux's MAP_PRIVATE, where the - // process appears to get its own copy of the data, and changes to the - // file don't affect memory and vice versa). - NSError *error; - contents_ = [NSData dataWithContentsOfFile:object_filename_ - options:0 - error:&error]; - if (!contents_) { + bool read_ok = true; + string error; + if (stat(object_filename_.c_str(), &st) != -1) { + FILE* f = fopen(object_filename_.c_str(), "rb"); + if (f) { + contents_.reset(new uint8_t[st.st_size]); + off_t total = 0; + while (total < st.st_size && !feof(f)) { + size_t read = fread(&contents_[0] + total, 1, st.st_size - total, f); + if (read == 0) { + if (ferror(f)) { + read_ok = false; + error = strerror(errno); + } + break; + } + total += read; + } + fclose(f); + } else { + error = strerror(errno); + } + } + + if (!read_ok) { fprintf(stderr, "Error reading object file: %s: %s\n", - [object_filename_ fileSystemRepresentation], - [[error localizedDescription] UTF8String]); + object_filename_.c_str(), + error.c_str()); return false; } - [contents_ retain]; // Get the list of object files present in the file. - FatReader::Reporter fat_reporter([object_filename_ - fileSystemRepresentation]); + FatReader::Reporter fat_reporter(object_filename_); FatReader fat_reader(&fat_reporter); - if (!fat_reader.Read(reinterpret_cast<const uint8_t *>([contents_ bytes]), - [contents_ length])) { + if (!fat_reader.Read(&contents_[0], + st.st_size)) { return false; } // Get our own copy of fat_reader's object file list. size_t object_files_count; - const struct fat_arch *object_files = + const SuperFatArch *object_files = fat_reader.object_files(&object_files_count); if (object_files_count == 0) { fprintf(stderr, "Fat binary file contains *no* architectures: %s\n", - [object_filename_ fileSystemRepresentation]); + object_filename_.c_str()); return false; } object_files_.resize(object_files_count); memcpy(&object_files_[0], object_files, - sizeof(struct fat_arch) * object_files_count); + sizeof(SuperFatArch) * object_files_count); return true; } @@ -179,9 +210,8 @@ bool DumpSymbols::Read(NSString *filename) { bool DumpSymbols::SetArchitecture(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype) { // Find the best match for the architecture the user requested. - const struct fat_arch *best_match - = NXFindBestFatArch(cpu_type, cpu_subtype, &object_files_[0], - static_cast<uint32_t>(object_files_.size())); + const SuperFatArch *best_match = FindBestMatchForArchitecture( + cpu_type, cpu_subtype); if (!best_match) return false; // Record the selected object file. @@ -191,20 +221,73 @@ bool DumpSymbols::SetArchitecture(cpu_type_t cpu_type, bool DumpSymbols::SetArchitecture(const std::string &arch_name) { bool arch_set = false; - const NXArchInfo *arch_info = NXGetArchInfoFromName(arch_name.c_str()); + const NXArchInfo *arch_info = + google_breakpad::BreakpadGetArchInfoFromName(arch_name.c_str()); if (arch_info) { arch_set = SetArchitecture(arch_info->cputype, arch_info->cpusubtype); } return arch_set; } +SuperFatArch* DumpSymbols::FindBestMatchForArchitecture( + cpu_type_t cpu_type, cpu_subtype_t cpu_subtype) { + // Check if all the object files can be converted to struct fat_arch. + bool can_convert_to_fat_arch = true; + vector<struct fat_arch> fat_arch_vector; + for (vector<SuperFatArch>::const_iterator it = object_files_.begin(); + it != object_files_.end(); + ++it) { + struct fat_arch arch; + bool success = it->ConvertToFatArch(&arch); + if (!success) { + can_convert_to_fat_arch = false; + break; + } + fat_arch_vector.push_back(arch); + } + + // If all the object files can be converted to struct fat_arch, use + // NXFindBestFatArch. + if (can_convert_to_fat_arch) { + const struct fat_arch *best_match + = NXFindBestFatArch(cpu_type, cpu_subtype, &fat_arch_vector[0], + static_cast<uint32_t>(fat_arch_vector.size())); + + for (size_t i = 0; i < fat_arch_vector.size(); ++i) { + if (best_match == &fat_arch_vector[i]) + return &object_files_[i]; + } + assert(best_match == NULL); + return NULL; + } + + // Check for an exact match with cpu_type and cpu_subtype. + for (vector<SuperFatArch>::iterator it = object_files_.begin(); + it != object_files_.end(); + ++it) { + if (static_cast<cpu_type_t>(it->cputype) == cpu_type && + static_cast<cpu_subtype_t>(it->cpusubtype) == cpu_subtype) + return &*it; + } + + // No exact match found. + // TODO(erikchen): If it becomes necessary, we can copy the implementation of + // NXFindBestFatArch, located at + // http://web.mit.edu/darwin/src/modules/cctools/libmacho/arch.c. + fprintf(stderr, "Failed to find an exact match for an object file with cpu " + "type: %d and cpu subtype: %d. Furthermore, at least one object file is " + "larger than 2**32.\n", cpu_type, cpu_subtype); + return NULL; +} + string DumpSymbols::Identifier() { - FileID file_id([object_filename_ fileSystemRepresentation]); + FileID file_id(object_filename_.c_str()); unsigned char identifier_bytes[16]; cpu_type_t cpu_type = selected_object_file_->cputype; - if (!file_id.MachoIdentifier(cpu_type, identifier_bytes)) { + cpu_subtype_t cpu_subtype = selected_object_file_->cpusubtype; + if (!file_id.MachoIdentifier(cpu_type, cpu_subtype, identifier_bytes)) { fprintf(stderr, "Unable to calculate UUID of mach-o binary %s!\n", - [object_filename_ fileSystemRepresentation]); + object_filename_.c_str()); return ""; } @@ -224,24 +307,90 @@ string DumpSymbols::Identifier() { // dwarf2reader::LineInfo and populates a Module and a line vector // with the results. class DumpSymbols::DumperLineToModule: - public DwarfCUToModule::LineToModuleFunctor { + public DwarfCUToModule::LineToModuleHandler { public: // Create a line-to-module converter using BYTE_READER. DumperLineToModule(dwarf2reader::ByteReader *byte_reader) : byte_reader_(byte_reader) { } - void operator()(const char *program, uint64 length, - Module *module, vector<Module::Line> *lines) { - DwarfLineToModule handler(module, lines); + + void StartCompilationUnit(const string& compilation_dir) { + compilation_dir_ = compilation_dir; + } + + void ReadProgram(const uint8_t *program, uint64 length, + Module *module, vector<Module::Line> *lines) { + DwarfLineToModule handler(module, compilation_dir_, lines); dwarf2reader::LineInfo parser(program, length, byte_reader_, &handler); parser.Start(); } private: + string compilation_dir_; dwarf2reader::ByteReader *byte_reader_; // WEAK }; +bool DumpSymbols::CreateEmptyModule(scoped_ptr<Module>& module) { + // Select an object file, if SetArchitecture hasn't been called to set one + // explicitly. + if (!selected_object_file_) { + // If there's only one architecture, that's the one. + if (object_files_.size() == 1) + selected_object_file_ = &object_files_[0]; + else { + // Look for an object file whose architecture matches our own. + const NXArchInfo *local_arch = NXGetLocalArchInfo(); + if (!SetArchitecture(local_arch->cputype, local_arch->cpusubtype)) { + fprintf(stderr, "%s: object file contains more than one" + " architecture, none of which match the current" + " architecture; specify an architecture explicitly" + " with '-a ARCH' to resolve the ambiguity\n", + object_filename_.c_str()); + return false; + } + } + } + + assert(selected_object_file_); + + // Find the name of the selected file's architecture, to appear in + // the MODULE record and in error messages. + const NXArchInfo *selected_arch_info = + google_breakpad::BreakpadGetArchInfoFromCpuType( + selected_object_file_->cputype, selected_object_file_->cpusubtype); + + const char *selected_arch_name = selected_arch_info->name; + if (strcmp(selected_arch_name, "i386") == 0) + selected_arch_name = "x86"; + + // Produce a name to use in error messages that includes the + // filename, and the architecture, if there is more than one. + selected_object_name_ = object_filename_; + if (object_files_.size() > 1) { + selected_object_name_ += ", architecture "; + selected_object_name_ + selected_arch_name; + } + + // Compute a module name, to appear in the MODULE record. + string module_name = object_filename_; + module_name = basename(&module_name[0]); + + // Choose an identifier string, to appear in the MODULE record. + string identifier = Identifier(); + if (identifier.empty()) + return false; + identifier += "0"; + + // Create a module to hold the debugging information. + module.reset(new Module(module_name, + "mac", + selected_arch_name, + identifier)); + return true; +} + bool DumpSymbols::ReadDwarf(google_breakpad::Module *module, const mach_o::Reader &macho_reader, - const mach_o::SectionMap &dwarf_sections) const { + const mach_o::SectionMap &dwarf_sections, + bool handle_inter_cu_refs) const { // Build a byte reader of the appropriate endianness. ByteReader byte_reader(macho_reader.big_endian() ? dwarf2reader::ENDIANNESS_BIG @@ -249,19 +398,24 @@ bool DumpSymbols::ReadDwarf(google_breakpad::Module *module, // Construct a context for this file. DwarfCUToModule::FileContext file_context(selected_object_name_, - module); + module, + handle_inter_cu_refs); // Build a dwarf2reader::SectionMap from our mach_o::SectionMap. for (mach_o::SectionMap::const_iterator it = dwarf_sections.begin(); - it != dwarf_sections.end(); it++) { - file_context.section_map[it->first] = - make_pair(reinterpret_cast<const char *>(it->second.contents.start), - it->second.contents.Size()); + it != dwarf_sections.end(); ++it) { + file_context.AddSectionToSectionMap( + it->first, + it->second.contents.start, + it->second.contents.Size()); } // Find the __debug_info section. - std::pair<const char *, uint64> debug_info_section - = file_context.section_map["__debug_info"]; + dwarf2reader::SectionMap::const_iterator debug_info_entry = + file_context.section_map().find("__debug_info"); + assert(debug_info_entry != file_context.section_map().end()); + const std::pair<const uint8_t *, uint64>& debug_info_section = + debug_info_entry->second; // There had better be a __debug_info section! if (!debug_info_section.first) { fprintf(stderr, "%s: __DWARF segment of file has no __debug_info section\n", @@ -283,7 +437,8 @@ bool DumpSymbols::ReadDwarf(google_breakpad::Module *module, // Make a Dwarf2Handler that drives our DIEHandler. dwarf2reader::DIEDispatcher die_dispatcher(&root_handler); // Make a DWARF parser for the compilation unit at OFFSET. - dwarf2reader::CompilationUnit dwarf_reader(file_context.section_map, + dwarf2reader::CompilationUnit dwarf_reader(selected_object_name_, + file_context.section_map(), offset, &byte_reader, &die_dispatcher); @@ -311,10 +466,12 @@ bool DumpSymbols::ReadCFI(google_breakpad::Module *module, case CPU_TYPE_ARM: register_names = DwarfCFIToModule::RegisterNames::ARM(); break; + case CPU_TYPE_ARM64: + register_names = DwarfCFIToModule::RegisterNames::ARM64(); + break; default: { - const NXArchInfo *arch = - NXGetArchInfoFromCpuType(macho_reader.cpu_type(), - macho_reader.cpu_subtype()); + const NXArchInfo *arch = google_breakpad::BreakpadGetArchInfoFromCpuType( + macho_reader.cpu_type(), macho_reader.cpu_subtype()); fprintf(stderr, "%s: cannot convert DWARF call frame information for ", selected_object_name_.c_str()); if (arch) @@ -328,7 +485,7 @@ bool DumpSymbols::ReadCFI(google_breakpad::Module *module, } // Find the call frame information and its size. - const char *cfi = reinterpret_cast<const char *>(section.contents.start); + const uint8_t *cfi = section.contents.start; size_t cfi_size = section.contents.Size(); // Plug together the parser, handler, and their entourages. @@ -362,8 +519,14 @@ class DumpSymbols::LoadCommandDumper: // file, and adding data to MODULE. LoadCommandDumper(const DumpSymbols &dumper, google_breakpad::Module *module, - const mach_o::Reader &reader) - : dumper_(dumper), module_(module), reader_(reader) { } + const mach_o::Reader &reader, + SymbolData symbol_data, + bool handle_inter_cu_refs) + : dumper_(dumper), + module_(module), + reader_(reader), + symbol_data_(symbol_data), + handle_inter_cu_refs_(handle_inter_cu_refs) { } bool SegmentCommand(const mach_o::Segment &segment); bool SymtabCommand(const ByteBuffer &entries, const ByteBuffer &strings); @@ -372,6 +535,8 @@ class DumpSymbols::LoadCommandDumper: const DumpSymbols &dumper_; google_breakpad::Module *module_; // WEAK const mach_o::Reader &reader_; + const SymbolData symbol_data_; + const bool handle_inter_cu_refs_; }; bool DumpSymbols::LoadCommandDumper::SegmentCommand(const Segment &segment) { @@ -381,23 +546,31 @@ bool DumpSymbols::LoadCommandDumper::SegmentCommand(const Segment &segment) { if (segment.name == "__TEXT") { module_->SetLoadAddress(segment.vmaddr); - mach_o::SectionMap::const_iterator eh_frame = - section_map.find("__eh_frame"); - if (eh_frame != section_map.end()) { - // If there is a problem reading this, don't treat it as a fatal error. - dumper_.ReadCFI(module_, reader_, eh_frame->second, true); + if (symbol_data_ != NO_CFI) { + mach_o::SectionMap::const_iterator eh_frame = + section_map.find("__eh_frame"); + if (eh_frame != section_map.end()) { + // If there is a problem reading this, don't treat it as a fatal error. + dumper_.ReadCFI(module_, reader_, eh_frame->second, true); + } } return true; } if (segment.name == "__DWARF") { - if (!dumper_.ReadDwarf(module_, reader_, section_map)) - return false; - mach_o::SectionMap::const_iterator debug_frame - = section_map.find("__debug_frame"); - if (debug_frame != section_map.end()) { - // If there is a problem reading this, don't treat it as a fatal error. - dumper_.ReadCFI(module_, reader_, debug_frame->second, false); + if (symbol_data_ != ONLY_CFI) { + if (!dumper_.ReadDwarf(module_, reader_, section_map, + handle_inter_cu_refs_)) { + return false; + } + } + if (symbol_data_ != NO_CFI) { + mach_o::SectionMap::const_iterator debug_frame + = section_map.find("__debug_frame"); + if (debug_frame != section_map.end()) { + // If there is a problem reading this, don't treat it as a fatal error. + dumper_.ReadCFI(module_, reader_, debug_frame->second, false); + } } } @@ -421,64 +594,15 @@ bool DumpSymbols::LoadCommandDumper::SymtabCommand(const ByteBuffer &entries, return true; } -bool DumpSymbols::WriteSymbolFile(std::ostream &stream, bool cfi) { - // Select an object file, if SetArchitecture hasn't been called to set one - // explicitly. - if (!selected_object_file_) { - // If there's only one architecture, that's the one. - if (object_files_.size() == 1) - selected_object_file_ = &object_files_[0]; - else { - // Look for an object file whose architecture matches our own. - const NXArchInfo *local_arch = NXGetLocalArchInfo(); - if (!SetArchitecture(local_arch->cputype, local_arch->cpusubtype)) { - fprintf(stderr, "%s: object file contains more than one" - " architecture, none of which match the current" - " architecture; specify an architecture explicitly" - " with '-a ARCH' to resolve the ambiguity\n", - [object_filename_ fileSystemRepresentation]); - return false; - } - } - } - - assert(selected_object_file_); - - // Find the name of the selected file's architecture, to appear in - // the MODULE record and in error messages. - const NXArchInfo *selected_arch_info - = NXGetArchInfoFromCpuType(selected_object_file_->cputype, - selected_object_file_->cpusubtype); - - const char *selected_arch_name = selected_arch_info->name; - if (strcmp(selected_arch_name, "i386") == 0) - selected_arch_name = "x86"; - - // Produce a name to use in error messages that includes the - // filename, and the architecture, if there is more than one. - selected_object_name_ = [object_filename_ UTF8String]; - if (object_files_.size() > 1) { - selected_object_name_ += ", architecture "; - selected_object_name_ + selected_arch_name; - } - - // Compute a module name, to appear in the MODULE record. - NSString *module_name = [object_filename_ lastPathComponent]; - - // Choose an identifier string, to appear in the MODULE record. - string identifier = Identifier(); - if (identifier.empty()) +bool DumpSymbols::ReadSymbolData(Module** out_module) { + scoped_ptr<Module> module; + if (!CreateEmptyModule(module)) return false; - identifier += "0"; - - // Create a module to hold the debugging information. - Module module([module_name UTF8String], "mac", selected_arch_name, - identifier); // Parse the selected object file. mach_o::Reader::Reporter reporter(selected_object_name_); mach_o::Reader reader(&reporter); - if (!reader.Read(reinterpret_cast<const uint8_t *>([contents_ bytes]) + if (!reader.Read(&contents_[0] + selected_object_file_->offset, selected_object_file_->size, selected_object_file_->cputype, @@ -486,11 +610,37 @@ bool DumpSymbols::WriteSymbolFile(std::ostream &stream, bool cfi) { return false; // Walk its load commands, and deal with whatever is there. - LoadCommandDumper load_command_dumper(*this, &module, reader); + LoadCommandDumper load_command_dumper(*this, module.get(), reader, + symbol_data_, handle_inter_cu_refs_); if (!reader.WalkLoadCommands(&load_command_dumper)) return false; - return module.Write(stream, cfi); + *out_module = module.release(); + + return true; +} + +bool DumpSymbols::WriteSymbolFile(std::ostream &stream) { + Module* module = NULL; + + if (ReadSymbolData(&module) && module) { + bool res = module->Write(stream, symbol_data_); + delete module; + return res; + } + + return false; +} + +// Read the selected object file's debugging information, and write out the +// header only to |stream|. Return true on success; if an error occurs, report +// it and return false. +bool DumpSymbols::WriteSymbolFileHeader(std::ostream &stream) { + scoped_ptr<Module> module; + if (!CreateEmptyModule(module)) + return false; + + return module->Write(stream, symbol_data_); } } // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/common/mac/dump_syms.h b/3rdParty/Breakpad/src/common/mac/dump_syms.h index 0e2f464..9463f7d 100644 --- a/3rdParty/Breakpad/src/common/mac/dump_syms.h +++ b/3rdParty/Breakpad/src/common/mac/dump_syms.h @@ -35,7 +35,6 @@ // reading debugging information from Mach-O files and writing it out as a // Breakpad symbol file. -#include <Foundation/Foundation.h> #include <mach-o/loader.h> #include <stdio.h> #include <stdlib.h> @@ -46,33 +45,32 @@ #include "common/byte_cursor.h" #include "common/mac/macho_reader.h" +#include "common/mac/super_fat_arch.h" #include "common/module.h" +#include "common/scoped_ptr.h" +#include "common/symbol_data.h" namespace google_breakpad { class DumpSymbols { public: - DumpSymbols() - : input_pathname_(), + DumpSymbols(SymbolData symbol_data, bool handle_inter_cu_refs) + : symbol_data_(symbol_data), + handle_inter_cu_refs_(handle_inter_cu_refs), + input_pathname_(), object_filename_(), contents_(), + object_files_(), selected_object_file_(), selected_object_name_() { } ~DumpSymbols() { - [input_pathname_ release]; - [object_filename_ release]; - [contents_ release]; } // Prepare to read debugging information from |filename|. |filename| may be // the name of a universal binary, a Mach-O file, or a dSYM bundle // containing either of the above. On success, return true; if there is a // problem reading |filename|, report it and return false. - // - // (This class uses NSString for filenames and related values, - // because the Mac Foundation framework seems to support - // filename-related operations more fully on NSString values.) - bool Read(NSString *filename); + bool Read(const std::string &filename); // If this dumper's file includes an object file for |cpu_type| and // |cpu_subtype|, then select that object file for dumping, and return @@ -95,14 +93,14 @@ class DumpSymbols { // architecture matches that of this dumper program. bool SetArchitecture(const std::string &arch_name); - // Return a pointer to an array of 'struct fat_arch' structures, - // describing the object files contained in this dumper's file. Set - // *|count| to the number of elements in the array. The returned array is - // owned by this DumpSymbols instance. + // Return a pointer to an array of SuperFatArch structures describing the + // object files contained in this dumper's file. Set *|count| to the number + // of elements in the array. The returned array is owned by this DumpSymbols + // instance. // // If there are no available architectures, this function // may return NULL. - const struct fat_arch *AvailableArchitectures(size_t *count) { + const SuperFatArch* AvailableArchitectures(size_t *count) { *count = object_files_.size(); if (object_files_.size() > 0) return &object_files_[0]; @@ -110,24 +108,44 @@ class DumpSymbols { } // Read the selected object file's debugging information, and write it out to - // |stream|. Write the CFI section if |cfi| is true. Return true on success; - // if an error occurs, report it and return false. - bool WriteSymbolFile(std::ostream &stream, bool cfi); + // |stream|. Return true on success; if an error occurs, report it and + // return false. + bool WriteSymbolFile(std::ostream &stream); + + // Read the selected object file's debugging information, and write out the + // header only to |stream|. Return true on success; if an error occurs, report + // it and return false. + bool WriteSymbolFileHeader(std::ostream &stream); + + // As above, but simply return the debugging information in module + // instead of writing it to a stream. The caller owns the resulting + // module object and must delete it when finished. + bool ReadSymbolData(Module** module); private: // Used internally. class DumperLineToModule; class LoadCommandDumper; + // This method behaves similarly to NXFindBestFatArch, but it supports + // SuperFatArch. + SuperFatArch* FindBestMatchForArchitecture( + cpu_type_t cpu_type, cpu_subtype_t cpu_subtype); + // Return an identifier string for the file this DumpSymbols is dumping. std::string Identifier(); + + // Creates an empty module object. + bool CreateEmptyModule(scoped_ptr<Module>& module); + // Read debugging information from |dwarf_sections|, which was taken from // |macho_reader|, and add it to |module|. On success, return true; // on failure, report the problem and return false. bool ReadDwarf(google_breakpad::Module *module, const mach_o::Reader &macho_reader, - const mach_o::SectionMap &dwarf_sections) const; + const mach_o::SectionMap &dwarf_sections, + bool handle_inter_cu_refs) const; // Read DWARF CFI or .eh_frame data from |section|, belonging to // |macho_reader|, and record it in |module|. If |eh_frame| is true, @@ -139,28 +157,34 @@ class DumpSymbols { const mach_o::Section §ion, bool eh_frame) const; + // The selection of what type of symbol data to read/write. + const SymbolData symbol_data_; + + // Whether to handle references between compilation units. + const bool handle_inter_cu_refs_; + // The name of the file or bundle whose symbols this will dump. // This is the path given to Read, for use in error messages. - NSString *input_pathname_; + std::string input_pathname_; // The name of the file this DumpSymbols will actually read debugging // information from. Normally, this is the same as input_pathname_, but if // filename refers to a dSYM bundle, then this is the resource file // within that bundle. - NSString *object_filename_; + std::string object_filename_; // The complete contents of object_filename_, mapped into memory. - NSData *contents_; + scoped_array<uint8_t> contents_; - // A vector of fat_arch structures describing the object files + // A vector of SuperFatArch structures describing the object files // object_filename_ contains. If object_filename_ refers to a fat binary, // this may have more than one element; if it refers to a Mach-O file, this // has exactly one element. - vector<struct fat_arch> object_files_; + vector<SuperFatArch> object_files_; // The object file in object_files_ selected to dump, or NULL if // SetArchitecture hasn't been called yet. - const struct fat_arch *selected_object_file_; + const SuperFatArch *selected_object_file_; // A string that identifies the selected object file, for use in error // messages. This is usually object_filename_, but if that refers to a diff --git a/3rdParty/Breakpad/src/common/mac/file_id.cc b/3rdParty/Breakpad/src/common/mac/file_id.cc index 50502e4..4661d5d 100644 --- a/3rdParty/Breakpad/src/common/mac/file_id.cc +++ b/3rdParty/Breakpad/src/common/mac/file_id.cc @@ -34,6 +34,7 @@ // Author: Dan Waylonis #include <fcntl.h> +#include <stdio.h> #include <string.h> #include <unistd.h> @@ -45,7 +46,7 @@ using MacFileUtilities::MachoID; namespace google_breakpad { FileID::FileID(const char *path) { - strlcpy(path_, path, sizeof(path_)); + snprintf(path_, sizeof(path_), "%s", path); } bool FileID::FileIdentifier(unsigned char identifier[16]) { @@ -61,7 +62,7 @@ bool FileID::FileIdentifier(unsigned char identifier[16]) { unsigned char buffer[4096 * 2]; size_t buffer_size = sizeof(buffer); while ((buffer_size = read(fd, buffer, buffer_size) > 0)) { - MD5Update(&md5, buffer, buffer_size); + MD5Update(&md5, buffer, static_cast<unsigned>(buffer_size)); } close(fd); @@ -70,13 +71,15 @@ bool FileID::FileIdentifier(unsigned char identifier[16]) { return true; } -bool FileID::MachoIdentifier(int cpu_type, unsigned char identifier[16]) { +bool FileID::MachoIdentifier(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype, + unsigned char identifier[16]) { MachoID macho(path_); - if (macho.UUIDCommand(cpu_type, identifier)) + if (macho.UUIDCommand(cpu_type, cpu_subtype, identifier)) return true; - return macho.MD5(cpu_type, identifier); + return macho.MD5(cpu_type, cpu_subtype, identifier); } // static @@ -90,8 +93,10 @@ void FileID::ConvertIdentifierToString(const unsigned char identifier[16], if (idx == 4 || idx == 6 || idx == 8 || idx == 10) buffer[buffer_idx++] = '-'; - buffer[buffer_idx++] = (hi >= 10) ? 'A' + hi - 10 : '0' + hi; - buffer[buffer_idx++] = (lo >= 10) ? 'A' + lo - 10 : '0' + lo; + buffer[buffer_idx++] = + static_cast<char>((hi >= 10) ? ('A' + hi - 10) : ('0' + hi)); + buffer[buffer_idx++] = + static_cast<char>((lo >= 10) ? ('A' + lo - 10) : ('0' + lo)); } // NULL terminate diff --git a/3rdParty/Breakpad/src/common/mac/file_id.h b/3rdParty/Breakpad/src/common/mac/file_id.h index eb06b0d..1d6dfde 100644 --- a/3rdParty/Breakpad/src/common/mac/file_id.h +++ b/3rdParty/Breakpad/src/common/mac/file_id.h @@ -35,6 +35,7 @@ #define COMMON_MAC_FILE_ID_H__ #include <limits.h> +#include <mach/machine.h> namespace google_breakpad { @@ -50,15 +51,18 @@ class FileID { bool FileIdentifier(unsigned char identifier[16]); // Treat the file as a mach-o file that will contain one or more archicture. - // Accepted values for |cpu_type| (e.g., CPU_TYPE_X86 or CPU_TYPE_POWERPC) - // are listed in /usr/include/mach/machine.h. - // If |cpu_type| is 0, then the native cpu type is used. - // Returns false if opening the file failed or if the |cpu_type| is not - // present in the file. + // Accepted values for |cpu_type| and |cpu_subtype| (e.g., CPU_TYPE_X86 or + // CPU_TYPE_POWERPC) are listed in /usr/include/mach/machine.h. + // If |cpu_type| is 0, then the native cpu type is used. If |cpu_subtype| is + // CPU_SUBTYPE_MULTIPLE, the match is only done on |cpu_type|. + // Returns false if opening the file failed or if the |cpu_type|/|cpu_subtype| + // is not present in the file. // Return the unique identifier in |identifier|. // The current implementation will look for the (in order of priority): // LC_UUID, LC_ID_DYLIB, or MD5 hash of the given |cpu_type|. - bool MachoIdentifier(int cpu_type, unsigned char identifier[16]); + bool MachoIdentifier(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype, + unsigned char identifier[16]); // Convert the |identifier| data to a NULL terminated string. The string will // be formatted as a UUID (e.g., 22F065BB-FC9C-49F7-80FE-26A7CEBD7BCE). @@ -75,4 +79,3 @@ class FileID { } // namespace google_breakpad #endif // COMMON_MAC_FILE_ID_H__ - diff --git a/3rdParty/Breakpad/src/common/mac/launch_reporter.cc b/3rdParty/Breakpad/src/common/mac/launch_reporter.cc new file mode 100644 index 0000000..245be82 --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/launch_reporter.cc @@ -0,0 +1,84 @@ +// Copyright (c) 2014, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include <stdio.h> +#include <sys/wait.h> +#include <unistd.h> + +namespace google_breakpad { + +void LaunchReporter(const char *reporter_executable_path, + const char *config_file_path) { + const char* argv[] = { reporter_executable_path, config_file_path, NULL }; + + // Launch the reporter + pid_t pid = fork(); + + if (pid == -1) { + perror("fork"); + fprintf(stderr, "Failed to fork reporter process\n"); + return; + } + + // If we're in the child, load in our new executable and run. + // The parent will not wait for the child to complete. + if (pid == 0) { + execv(argv[0], (char* const*)argv); + perror("exec"); + fprintf(stderr, + "Failed to launch reporter process from path %s\n", + reporter_executable_path); + unlink(config_file_path); // launch failed - get rid of config file + _exit(1); + } + + // Wait until the Reporter child process exits. + // + + // We'll use a timeout of one minute. + int timeout_count = 60; // 60 seconds + + while (timeout_count-- > 0) { + int status; + pid_t result = waitpid(pid, &status, WNOHANG); + + if (result == 0) { + // The child has not yet finished. + sleep(1); + } else if (result == -1) { + // error occurred. + break; + } else { + // child has finished + break; + } + } +} + +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/common/mac/launch_reporter.h b/3rdParty/Breakpad/src/common/mac/launch_reporter.h new file mode 100644 index 0000000..4531123 --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/launch_reporter.h @@ -0,0 +1,43 @@ +// Copyright (c) 2014, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef COMMON_MAC_LAUNCH_REPORTER_H__ +#define COMMON_MAC_LAUNCH_REPORTER_H__ + +namespace google_breakpad { + +// Launch the crash dump sender app. +// |reporter_executable_path| is the path to the sender executable. +// |config_file_path| is the path to the config file. +void LaunchReporter(const char *reporter_executable_path, + const char *config_file_path); + +} // namespace google_breakpad + +#endif // COMMON_MAC_LAUNCH_REPORTER_H__ diff --git a/3rdParty/Breakpad/src/common/mac/macho_id.cc b/3rdParty/Breakpad/src/common/mac/macho_id.cc index abe1fab..c396ad8 100644 --- a/3rdParty/Breakpad/src/common/mac/macho_id.cc +++ b/3rdParty/Breakpad/src/common/mac/macho_id.cc @@ -33,17 +33,15 @@ // // Author: Dan Waylonis -extern "C" { // necessary for Leopard - #include <fcntl.h> - #include <mach-o/loader.h> - #include <mach-o/swap.h> - #include <stdio.h> - #include <stdlib.h> - #include <string.h> - #include <sys/time.h> - #include <sys/types.h> - #include <unistd.h> -} + +#include <fcntl.h> +#include <mach-o/loader.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/time.h> +#include <sys/types.h> +#include <unistd.h> #include "common/mac/macho_id.h" #include "common/mac/macho_walker.h" @@ -61,7 +59,7 @@ MachoID::MachoID(const char *path) crc_(0), md5_context_(), update_function_(NULL) { - strlcpy(path_, path, sizeof(path_)); + snprintf(path_, sizeof(path_), "%s", path); } MachoID::MachoID(const char *path, void *memory, size_t size) @@ -70,7 +68,7 @@ MachoID::MachoID(const char *path, void *memory, size_t size) crc_(0), md5_context_(), update_function_(NULL) { - strlcpy(path_, path, sizeof(path_)); + snprintf(path_, sizeof(path_), "%s", path); } MachoID::~MachoID() { @@ -125,7 +123,7 @@ void MachoID::UpdateCRC(unsigned char *bytes, size_t size) { } void MachoID::UpdateMD5(unsigned char *bytes, size_t size) { - MD5Update(&md5_context_, bytes, size); + MD5Update(&md5_context_, bytes, static_cast<unsigned>(size)); } void MachoID::Update(MachoWalker *walker, off_t offset, size_t size) { @@ -153,10 +151,12 @@ void MachoID::Update(MachoWalker *walker, off_t offset, size_t size) { } } -bool MachoID::UUIDCommand(int cpu_type, unsigned char bytes[16]) { +bool MachoID::UUIDCommand(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype, + unsigned char bytes[16]) { struct breakpad_uuid_command uuid_cmd; uuid_cmd.cmd = 0; - if (!WalkHeader(cpu_type, UUIDWalkerCB, &uuid_cmd)) + if (!WalkHeader(cpu_type, cpu_subtype, UUIDWalkerCB, &uuid_cmd)) return false; // If we found the command, we'll have initialized the uuid_command @@ -169,10 +169,12 @@ bool MachoID::UUIDCommand(int cpu_type, unsigned char bytes[16]) { return false; } -bool MachoID::IDCommand(int cpu_type, unsigned char identifier[16]) { +bool MachoID::IDCommand(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype, + unsigned char identifier[16]) { struct dylib_command dylib_cmd; dylib_cmd.cmd = 0; - if (!WalkHeader(cpu_type, IDWalkerCB, &dylib_cmd)) + if (!WalkHeader(cpu_type, cpu_subtype, IDWalkerCB, &dylib_cmd)) return false; // If we found the command, we'll have initialized the dylib_command @@ -210,37 +212,38 @@ bool MachoID::IDCommand(int cpu_type, unsigned char identifier[16]) { return false; } -uint32_t MachoID::Adler32(int cpu_type) { +uint32_t MachoID::Adler32(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype) { update_function_ = &MachoID::UpdateCRC; crc_ = 0; - if (!WalkHeader(cpu_type, WalkerCB, this)) + if (!WalkHeader(cpu_type, cpu_subtype, WalkerCB, this)) return 0; return crc_; } -bool MachoID::MD5(int cpu_type, unsigned char identifier[16]) { +bool MachoID::MD5(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype, unsigned char identifier[16]) { update_function_ = &MachoID::UpdateMD5; MD5Init(&md5_context_); - if (!WalkHeader(cpu_type, WalkerCB, this)) + if (!WalkHeader(cpu_type, cpu_subtype, WalkerCB, this)) return false; MD5Final(identifier, &md5_context_); return true; } -bool MachoID::WalkHeader(int cpu_type, +bool MachoID::WalkHeader(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype, MachoWalker::LoadCommandCallback callback, void *context) { if (memory_) { MachoWalker walker(memory_, memory_size_, callback, context); - return walker.WalkHeader(cpu_type); + return walker.WalkHeader(cpu_type, cpu_subtype); } else { MachoWalker walker(path_, callback, context); - return walker.WalkHeader(cpu_type); + return walker.WalkHeader(cpu_type, cpu_subtype); } } @@ -256,7 +259,7 @@ bool MachoID::WalkerCB(MachoWalker *walker, load_command *cmd, off_t offset, return false; if (swap) - swap_segment_command(&seg, NXHostByteOrder()); + breakpad_swap_segment_command(&seg); struct mach_header_64 header; off_t header_offset; @@ -273,7 +276,7 @@ bool MachoID::WalkerCB(MachoWalker *walker, load_command *cmd, off_t offset, return false; if (swap) - swap_section(&sec, 1, NXHostByteOrder()); + breakpad_swap_section(&sec, 1); // sections of type S_ZEROFILL are "virtual" and contain no data // in the file itself @@ -289,7 +292,7 @@ bool MachoID::WalkerCB(MachoWalker *walker, load_command *cmd, off_t offset, return false; if (swap) - breakpad_swap_segment_command_64(&seg64, NXHostByteOrder()); + breakpad_swap_segment_command_64(&seg64); struct mach_header_64 header; off_t header_offset; @@ -306,7 +309,7 @@ bool MachoID::WalkerCB(MachoWalker *walker, load_command *cmd, off_t offset, return false; if (swap) - breakpad_swap_section_64(&sec64, 1, NXHostByteOrder()); + breakpad_swap_section_64(&sec64, 1); // sections of type S_ZEROFILL are "virtual" and contain no data // in the file itself @@ -335,7 +338,7 @@ bool MachoID::UUIDWalkerCB(MachoWalker *walker, load_command *cmd, off_t offset, return false; if (swap) - breakpad_swap_uuid_command(uuid_cmd, NXHostByteOrder()); + breakpad_swap_uuid_command(uuid_cmd); return false; } @@ -354,7 +357,7 @@ bool MachoID::IDWalkerCB(MachoWalker *walker, load_command *cmd, off_t offset, return false; if (swap) - swap_dylib_command(dylib_cmd, NXHostByteOrder()); + breakpad_swap_dylib_command(dylib_cmd); return false; } diff --git a/3rdParty/Breakpad/src/common/mac/macho_id.h b/3rdParty/Breakpad/src/common/mac/macho_id.h index ccb126d..1037549 100644 --- a/3rdParty/Breakpad/src/common/mac/macho_id.h +++ b/3rdParty/Breakpad/src/common/mac/macho_id.h @@ -35,6 +35,7 @@ #define COMMON_MAC_MACHO_ID_H__ #include <limits.h> +#include <mach/machine.h> #include <mach-o/loader.h> #include "common/mac/macho_walker.h" @@ -48,22 +49,32 @@ class MachoID { MachoID(const char *path, void *memory, size_t size); ~MachoID(); - // For the given |cpu_type|, return a UUID from the LC_UUID command. + // For the given |cpu_type| and |cpu_subtype|, return a UUID from the LC_UUID + // command. // Return false if there isn't a LC_UUID command. - bool UUIDCommand(int cpu_type, unsigned char identifier[16]); + bool UUIDCommand(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype, + unsigned char identifier[16]); - // For the given |cpu_type|, return a UUID from the LC_ID_DYLIB command. + // For the given |cpu_type| and |cpu_subtype|, return a UUID from the + // LC_ID_DYLIB command. // Return false if there isn't a LC_ID_DYLIB command. - bool IDCommand(int cpu_type, unsigned char identifier[16]); + bool IDCommand(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype, + unsigned char identifier[16]); - // For the given |cpu_type|, return the Adler32 CRC for the mach-o data - // segment(s). + // For the given |cpu_type| and |cpu_subtype|, return the Adler32 CRC for the + // mach-o data segment(s). // Return 0 on error (e.g., if the file is not a mach-o file) - uint32_t Adler32(int cpu_type); + uint32_t Adler32(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype); - // For the given |cpu_type|, return the MD5 for the mach-o data segment(s). + // For the given |cpu_type|, and |cpu_subtype| return the MD5 for the mach-o + // data segment(s). // Return true on success, false otherwise - bool MD5(int cpu_type, unsigned char identifier[16]); + bool MD5(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype, + unsigned char identifier[16]); private: // Signature of class member function to be called with data read from file @@ -81,8 +92,8 @@ class MachoID { void Update(MachoWalker *walker, off_t offset, size_t size); // Factory for the MachoWalker - bool WalkHeader(int cpu_type, MachoWalker::LoadCommandCallback callback, - void *context); + bool WalkHeader(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype, + MachoWalker::LoadCommandCallback callback, void *context); // The callback from the MachoWalker for CRC and MD5 static bool WalkerCB(MachoWalker *walker, load_command *cmd, off_t offset, diff --git a/3rdParty/Breakpad/src/common/mac/macho_reader.cc b/3rdParty/Breakpad/src/common/mac/macho_reader.cc index f1f0a17..52f3c41 100644 --- a/3rdParty/Breakpad/src/common/mac/macho_reader.cc +++ b/3rdParty/Breakpad/src/common/mac/macho_reader.cc @@ -43,6 +43,10 @@ #define CPU_TYPE_ARM 12 #endif +#if !defined(CPU_TYPE_ARM_64) +#define CPU_TYPE_ARM_64 16777228 +#endif + namespace google_breakpad { namespace mach_o { @@ -97,22 +101,26 @@ bool FatReader::Read(const uint8_t *buffer, size_t size) { // Read the list of object files. object_files_.resize(object_files_count); for (size_t i = 0; i < object_files_count; i++) { - struct fat_arch *objfile = &object_files_[i]; + struct fat_arch objfile; // Read this object file entry, byte-swapping as appropriate. - cursor >> objfile->cputype - >> objfile->cpusubtype - >> objfile->offset - >> objfile->size - >> objfile->align; + cursor >> objfile.cputype + >> objfile.cpusubtype + >> objfile.offset + >> objfile.size + >> objfile.align; + + SuperFatArch super_fat_arch(objfile); + object_files_[i] = super_fat_arch; + if (!cursor) { reporter_->TooShort(); return false; } // Does the file actually have the bytes this entry refers to? size_t fat_size = buffer_.Size(); - if (objfile->offset > fat_size || - objfile->size > fat_size - objfile->offset) { + if (objfile.offset > fat_size || + objfile.size > fat_size - objfile.offset) { reporter_->MisplacedObjectFile(); return false; } @@ -135,16 +143,14 @@ bool FatReader::Read(const uint8_t *buffer, size_t size) { } object_files_[0].offset = 0; - object_files_[0].size = static_cast<uint32_t>(buffer_.Size()); + object_files_[0].size = static_cast<uint64_t>(buffer_.Size()); // This alignment is correct for 32 and 64-bit x86 and ppc. // See get_align in the lipo source for other architectures: // http://www.opensource.apple.com/source/cctools/cctools-773/misc/lipo.c object_files_[0].align = 12; // 2^12 == 4096 - return true; } } - reporter_->BadHeader(); return false; } @@ -175,15 +181,15 @@ void Reader::Reporter::LoadCommandRegionTruncated() { void Reader::Reporter::LoadCommandsOverrun(size_t claimed, size_t i, LoadCommandType type) { - fprintf(stderr, "%s: file's header claims there are %ld" - " load commands, but load command #%ld", + fprintf(stderr, "%s: file's header claims there are %zu" + " load commands, but load command #%zu", filename_.c_str(), claimed, i); if (type) fprintf(stderr, ", of type %d,", type); fprintf(stderr, " extends beyond the end of the load command region\n"); } void Reader::Reporter::LoadCommandTooShort(size_t i, LoadCommandType type) { - fprintf(stderr, "%s: the contents of load command #%ld, of type %d," + fprintf(stderr, "%s: the contents of load command #%zu, of type %d," " extend beyond the size given in the load command's header\n", filename_.c_str(), i, type); } @@ -242,6 +248,7 @@ bool Reader::Read(const uint8_t *buffer, case CPU_TYPE_POWERPC: expected_magic = MH_MAGIC; break; + case CPU_TYPE_ARM_64: case CPU_TYPE_X86_64: expected_magic = MH_CIGAM_64; break; @@ -310,7 +317,7 @@ bool Reader::WalkLoadCommands(Reader::LoadCommandHandler *handler) const { // remainder of the load command series. ByteBuffer command(list_cursor.here(), list_cursor.Available()); ByteCursor cursor(&command, big_endian_); - + // Read the command type and size --- fields common to all commands. uint32_t type, size; if (!(cursor >> type)) { @@ -395,7 +402,7 @@ bool Reader::WalkLoadCommands(Reader::LoadCommandHandler *handler) const { return false; break; } - + default: { if (!handler->UnknownCommand(type, command)) return false; @@ -414,7 +421,7 @@ class Reader::SegmentFinder : public LoadCommandHandler { public: // Create a load command handler that looks for a segment named NAME, // and sets SEGMENT to describe it if found. - SegmentFinder(const string &name, Segment *segment) + SegmentFinder(const string &name, Segment *segment) : name_(name), segment_(segment), found_() { } // Return true if the traversal found the segment, false otherwise. @@ -474,10 +481,12 @@ bool Reader::WalkSegmentSections(const Segment &segment, reporter_->SectionsMissing(segment.name); return false; } - if ((section.flags & SECTION_TYPE) == S_ZEROFILL) { + const uint32_t section_type = section.flags & SECTION_TYPE; + if (section_type == S_ZEROFILL || section_type == S_THREAD_LOCAL_ZEROFILL || + section_type == S_GB_ZEROFILL) { // Zero-fill sections have a size, but no contents. section.contents.start = section.contents.end = NULL; - } else if (segment.contents.start == NULL && + } else if (segment.contents.start == NULL && segment.contents.end == NULL) { // Mach-O files in .dSYM bundles have the contents of the loaded // segments removed, and their file offsets and file sizes zeroed diff --git a/3rdParty/Breakpad/src/common/mac/macho_reader.h b/3rdParty/Breakpad/src/common/mac/macho_reader.h index 7537648..30db742 100644 --- a/3rdParty/Breakpad/src/common/mac/macho_reader.h +++ b/3rdParty/Breakpad/src/common/mac/macho_reader.h @@ -47,6 +47,7 @@ #include <vector> #include "common/byte_cursor.h" +#include "common/mac/super_fat_arch.h" namespace google_breakpad { namespace mach_o { @@ -93,7 +94,7 @@ class FatReader { // complete header, or the header implies that contents are present // beyond the actual end of the file. virtual void TooShort(); - + private: // The filename to which the reader should attribute problems. string filename_; @@ -101,7 +102,7 @@ class FatReader { // Create a fat binary file reader that uses |reporter| to report problems. explicit FatReader(Reporter *reporter) : reporter_(reporter) { } - + // Read the |size| bytes at |buffer| as a fat binary file. On success, // return true; on failure, report the problem to reporter_ and return // false. @@ -111,13 +112,13 @@ class FatReader { // single object file is the Mach-O file. bool Read(const uint8_t *buffer, size_t size); - // Return an array of 'struct fat_arch' structures describing the + // Return an array of 'SuperFatArch' structures describing the // object files present in this fat binary file. Set |size| to the // number of elements in the array. // - // Assuming Read returned true, the entries are validated: it is - // safe to assume that the offsets and sizes in each 'struct - // fat_arch' refer to subranges of the bytes passed to Read. + // Assuming Read returned true, the entries are validated: it is safe to + // assume that the offsets and sizes in each SuperFatArch refer to subranges + // of the bytes passed to Read. // // If there are no object files in this fat binary, then this // function can return NULL. @@ -129,7 +130,7 @@ class FatReader { // possible to use the result with OS X functions like NXFindBestFatArch, // so that the symbol dumper will behave consistently with other OS X // utilities that work with fat binaries. - const struct fat_arch *object_files(size_t *count) const { + const SuperFatArch* object_files(size_t *count) const { *count = object_files_.size(); if (object_files_.size() > 0) return &object_files_[0]; @@ -149,7 +150,7 @@ class FatReader { // The list of object files in this binary. // object_files_.size() == fat_header.nfat_arch - vector<struct fat_arch> object_files_; + vector<SuperFatArch> object_files_; }; // A segment in a Mach-O file. All these fields have been byte-swapped as @@ -177,7 +178,7 @@ struct Segment { // The maximum and initial VM protection of this segment's contents. uint32_t maxprot; uint32_t initprot; - + // The number of sections in section_list. uint32_t nsects; @@ -376,7 +377,7 @@ class Reader { return Read(buffer.start, buffer.Size(), expected_cpu_type, - expected_cpu_subtype); + expected_cpu_subtype); } // Return this file's characteristics, as found in the Mach-O header. diff --git a/3rdParty/Breakpad/src/common/mac/macho_reader_unittest.cc b/3rdParty/Breakpad/src/common/mac/macho_reader_unittest.cc new file mode 100644 index 0000000..d8459d8 --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/macho_reader_unittest.cc @@ -0,0 +1,1902 @@ +// Copyright (c) 2010 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// macho_reader_unittest.cc: Unit tests for google_breakpad::Mach_O::FatReader +// and google_breakpad::Mach_O::Reader. + +#include <map> +#include <string> +#include <vector> + +#include "breakpad_googletest_includes.h" +#include "common/mac/macho_reader.h" +#include "common/test_assembler.h" + +namespace mach_o = google_breakpad::mach_o; +namespace test_assembler = google_breakpad::test_assembler; + +using mach_o::FatReader; +using mach_o::FileFlags; +using mach_o::FileType; +using mach_o::LoadCommandType; +using mach_o::Reader; +using mach_o::Section; +using mach_o::SectionMap; +using mach_o::Segment; +using test_assembler::Endianness; +using test_assembler::Label; +using test_assembler::kBigEndian; +using test_assembler::kLittleEndian; +using test_assembler::kUnsetEndian; +using google_breakpad::ByteBuffer; +using std::map; +using std::string; +using std::vector; +using testing::AllOf; +using testing::DoAll; +using testing::Field; +using testing::InSequence; +using testing::Matcher; +using testing::Return; +using testing::SaveArg; +using testing::Test; +using testing::_; + + +// Mock classes for the reader's various reporters and handlers. + +class MockFatReaderReporter: public FatReader::Reporter { + public: + MockFatReaderReporter(const string &filename) + : FatReader::Reporter(filename) { } + MOCK_METHOD0(BadHeader, void()); + MOCK_METHOD0(MisplacedObjectFile, void()); + MOCK_METHOD0(TooShort, void()); +}; + +class MockReaderReporter: public Reader::Reporter { + public: + MockReaderReporter(const string &filename) : Reader::Reporter(filename) { } + MOCK_METHOD0(BadHeader, void()); + MOCK_METHOD4(CPUTypeMismatch, void(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype, + cpu_type_t expected_cpu_type, + cpu_subtype_t expected_cpu_subtype)); + MOCK_METHOD0(HeaderTruncated, void()); + MOCK_METHOD0(LoadCommandRegionTruncated, void()); + MOCK_METHOD3(LoadCommandsOverrun, void(size_t claimed, size_t i, + LoadCommandType type)); + MOCK_METHOD2(LoadCommandTooShort, void(size_t i, LoadCommandType type)); + MOCK_METHOD1(SectionsMissing, void(const string &name)); + MOCK_METHOD1(MisplacedSegmentData, void(const string &name)); + MOCK_METHOD2(MisplacedSectionData, void(const string §ion, + const string &segment)); + MOCK_METHOD0(MisplacedSymbolTable, void()); + MOCK_METHOD1(UnsupportedCPUType, void(cpu_type_t cpu_type)); +}; + +class MockLoadCommandHandler: public Reader::LoadCommandHandler { + public: + MOCK_METHOD2(UnknownCommand, bool(LoadCommandType, const ByteBuffer &)); + MOCK_METHOD1(SegmentCommand, bool(const Segment &)); + MOCK_METHOD2(SymtabCommand, bool(const ByteBuffer &, const ByteBuffer &)); +}; + +class MockSectionHandler: public Reader::SectionHandler { + public: + MOCK_METHOD1(HandleSection, bool(const Section §ion)); +}; + + +// Tests for mach_o::FatReader. + +// Since the effect of these functions is to write to stderr, the +// results of these tests must be inspected by hand. +TEST(FatReaderReporter, BadHeader) { + FatReader::Reporter reporter("filename"); + reporter.BadHeader(); +} + +TEST(FatReaderReporter, MisplacedObjectFile) { + FatReader::Reporter reporter("filename"); + reporter.MisplacedObjectFile(); +} + +TEST(FatReaderReporter, TooShort) { + FatReader::Reporter reporter("filename"); + reporter.TooShort(); +} + +TEST(MachOReaderReporter, BadHeader) { + Reader::Reporter reporter("filename"); + reporter.BadHeader(); +} + +TEST(MachOReaderReporter, CPUTypeMismatch) { + Reader::Reporter reporter("filename"); + reporter.CPUTypeMismatch(CPU_TYPE_I386, CPU_SUBTYPE_X86_ALL, + CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_ALL); +} + +TEST(MachOReaderReporter, HeaderTruncated) { + Reader::Reporter reporter("filename"); + reporter.HeaderTruncated(); +} + +TEST(MachOReaderReporter, LoadCommandRegionTruncated) { + Reader::Reporter reporter("filename"); + reporter.LoadCommandRegionTruncated(); +} + +TEST(MachOReaderReporter, LoadCommandsOverrun) { + Reader::Reporter reporter("filename"); + reporter.LoadCommandsOverrun(10, 9, LC_DYSYMTAB); + reporter.LoadCommandsOverrun(10, 9, 0); +} + +TEST(MachOReaderReporter, LoadCommandTooShort) { + Reader::Reporter reporter("filename"); + reporter.LoadCommandTooShort(11, LC_SYMTAB); +} + +TEST(MachOReaderReporter, SectionsMissing) { + Reader::Reporter reporter("filename"); + reporter.SectionsMissing("segment name"); +} + +TEST(MachOReaderReporter, MisplacedSegmentData) { + Reader::Reporter reporter("filename"); + reporter.MisplacedSegmentData("segment name"); +} + +TEST(MachOReaderReporter, MisplacedSectionData) { + Reader::Reporter reporter("filename"); + reporter.MisplacedSectionData("section name", "segment name"); +} + +TEST(MachOReaderReporter, MisplacedSymbolTable) { + Reader::Reporter reporter("filename"); + reporter.MisplacedSymbolTable(); +} + +TEST(MachOReaderReporter, UnsupportedCPUType) { + Reader::Reporter reporter("filename"); + reporter.UnsupportedCPUType(CPU_TYPE_HPPA); +} + +struct FatReaderFixture { + FatReaderFixture() + : fat(kBigEndian), + reporter("reporter filename"), + reader(&reporter), object_files() { + EXPECT_CALL(reporter, BadHeader()).Times(0); + EXPECT_CALL(reporter, TooShort()).Times(0); + + // here, start, and Mark are file offsets in 'fat'. + fat.start() = 0; + } + // Append a 'fat_arch' entry to 'fat', with the given field values. + void AppendFatArch(cpu_type_t type, cpu_subtype_t subtype, + Label offset, Label size, uint32_t align) { + fat + .B32(type) + .B32(subtype) + .B32(offset) + .B32(size) + .B32(align); + } + // Append |n| dummy 'fat_arch' entries to 'fat'. The cpu type and + // subtype have unrealistic values. + void AppendDummyArchEntries(int n) { + for (int i = 0; i < n; i++) + AppendFatArch(0xb68ad617, 0x715a0840, 0, 0, 1); + } + void ReadFat(bool expect_parse_success = true) { + ASSERT_TRUE(fat.GetContents(&contents)); + fat_bytes = reinterpret_cast<const uint8_t *>(contents.data()); + if (expect_parse_success) { + EXPECT_TRUE(reader.Read(fat_bytes, contents.size())); + size_t fat_files_count; + const SuperFatArch* fat_files = reader.object_files(&fat_files_count); + object_files.resize(fat_files_count); + for (size_t i = 0; i < fat_files_count; ++i) { + EXPECT_TRUE(fat_files[i].ConvertToFatArch(&object_files[i])); + } + } + else + EXPECT_FALSE(reader.Read(fat_bytes, contents.size())); + } + test_assembler::Section fat; + MockFatReaderReporter reporter; + FatReader reader; + string contents; + const uint8_t *fat_bytes; + vector<struct fat_arch> object_files; +}; + +class FatReaderTest: public FatReaderFixture, public Test { }; + +TEST_F(FatReaderTest, BadMagic) { + EXPECT_CALL(reporter, BadHeader()).Times(1); + fat + .B32(0xcafed00d) // magic number (incorrect) + .B32(10); // number of architectures + AppendDummyArchEntries(10); + ReadFat(false); +} + +TEST_F(FatReaderTest, HeaderTooShort) { + EXPECT_CALL(reporter, TooShort()).Times(1); + fat + .B32(0xcafebabe); // magic number + ReadFat(false); +} + +TEST_F(FatReaderTest, ObjectListTooShort) { + EXPECT_CALL(reporter, TooShort()).Times(1); + fat + .B32(0xcafebabe) // magic number + .B32(10); // number of architectures + AppendDummyArchEntries(9); // nine dummy architecture entries... + fat // and a tenth, missing a byte at the end + .B32(0x3d46c8fc) // cpu type + .B32(0x8a7bfb01) // cpu subtype + .B32(0) // offset + .B32(0) // size + .Append(3, '*'); // one byte short of a four-byte alignment + ReadFat(false); +} + +TEST_F(FatReaderTest, DataTooShort) { + EXPECT_CALL(reporter, MisplacedObjectFile()).Times(1); + Label arch_data; + fat + .B32(0xcafebabe) // magic number + .B32(1); // number of architectures + AppendFatArch(0xb4d4a366, 0x4ba4f525, arch_data, 40, 0); + fat + .Mark(&arch_data) // file data begins here + .Append(30, '*'); // only 30 bytes, not 40 as header claims + ReadFat(false); +} + +TEST_F(FatReaderTest, NoObjectFiles) { + fat + .B32(0xcafebabe) // magic number + .B32(0); // number of architectures + ReadFat(); + EXPECT_EQ(0U, object_files.size()); +} + +TEST_F(FatReaderTest, OneObjectFile) { + Label obj1_offset; + fat + .B32(0xcafebabe) // magic number + .B32(1); // number of architectures + // First object file list entry + AppendFatArch(0x5e3a6e91, 0x52ccd852, obj1_offset, 0x42, 0x355b15b2); + // First object file data + fat + .Mark(&obj1_offset) + .Append(0x42, '*'); // dummy contents + ReadFat(); + ASSERT_EQ(1U, object_files.size()); + EXPECT_EQ(0x5e3a6e91, object_files[0].cputype); + EXPECT_EQ(0x52ccd852, object_files[0].cpusubtype); + EXPECT_EQ(obj1_offset.Value(), object_files[0].offset); + EXPECT_EQ(0x42U, object_files[0].size); + EXPECT_EQ(0x355b15b2U, object_files[0].align); +} + +TEST_F(FatReaderTest, ThreeObjectFiles) { + Label obj1, obj2, obj3; + fat + .B32(0xcafebabe) // magic number + .B32(3); // number of architectures + // Three object file list entries. + AppendFatArch(0x0cb92c30, 0x6a159a71, obj1, 0xfb4, 0x2615dbe8); + AppendFatArch(0x0f3f1cbb, 0x6c55e90f, obj2, 0xc31, 0x83af6ffd); + AppendFatArch(0x3717276d, 0x10ecdc84, obj3, 0x4b3, 0x035267d7); + fat + // First object file data + .Mark(&obj1) + .Append(0xfb4, '*') // dummy contents + // Second object file data + .Mark(&obj2) + .Append(0xc31, '%') // dummy contents + // Third object file data + .Mark(&obj3) + .Append(0x4b3, '^'); // dummy contents + + ReadFat(); + + ASSERT_EQ(3U, object_files.size()); + + // First object file. + EXPECT_EQ(0x0cb92c30, object_files[0].cputype); + EXPECT_EQ(0x6a159a71, object_files[0].cpusubtype); + EXPECT_EQ(obj1.Value(), object_files[0].offset); + EXPECT_EQ(0xfb4U, object_files[0].size); + EXPECT_EQ(0x2615dbe8U, object_files[0].align); + + // Second object file. + EXPECT_EQ(0x0f3f1cbb, object_files[1].cputype); + EXPECT_EQ(0x6c55e90f, object_files[1].cpusubtype); + EXPECT_EQ(obj2.Value(), object_files[1].offset); + EXPECT_EQ(0xc31U, object_files[1].size); + EXPECT_EQ(0x83af6ffdU, object_files[1].align); + + // Third object file. + EXPECT_EQ(0x3717276d, object_files[2].cputype); + EXPECT_EQ(0x10ecdc84, object_files[2].cpusubtype); + EXPECT_EQ(obj3.Value(), object_files[2].offset); + EXPECT_EQ(0x4b3U, object_files[2].size); + EXPECT_EQ(0x035267d7U, object_files[2].align); +} + +TEST_F(FatReaderTest, BigEndianMachO32) { + fat.set_endianness(kBigEndian); + fat + .D32(0xfeedface) // Mach-O file magic number + .D32(0x1a9d0518) // cpu type + .D32(0x1b779357) // cpu subtype + .D32(0x009df67e) // file type + .D32(0) // no load commands + .D32(0) // the load commands occupy no bytes + .D32(0x21987a99); // flags + + ReadFat(); + + // FatReader should treat a Mach-O file as if it were a fat binary file + // containing one object file --- the whole thing. + ASSERT_EQ(1U, object_files.size()); + EXPECT_EQ(0x1a9d0518, object_files[0].cputype); + EXPECT_EQ(0x1b779357, object_files[0].cpusubtype); + EXPECT_EQ(0U, object_files[0].offset); + EXPECT_EQ(contents.size(), object_files[0].size); +} + +TEST_F(FatReaderTest, BigEndianMachO64) { + fat.set_endianness(kBigEndian); + fat + .D32(0xfeedfacf) // Mach-O 64-bit file magic number + .D32(0x5aff8487) // cpu type + .D32(0x4c6a57f7) // cpu subtype + .D32(0x4392d2c8) // file type + .D32(0) // no load commands + .D32(0) // the load commands occupy no bytes + .D32(0x1b033eea); // flags + + ReadFat(); + + // FatReader should treat a Mach-O file as if it were a fat binary file + // containing one object file --- the whole thing. + ASSERT_EQ(1U, object_files.size()); + EXPECT_EQ(0x5aff8487, object_files[0].cputype); + EXPECT_EQ(0x4c6a57f7, object_files[0].cpusubtype); + EXPECT_EQ(0U, object_files[0].offset); + EXPECT_EQ(contents.size(), object_files[0].size); +} + +TEST_F(FatReaderTest, LittleEndianMachO32) { + fat.set_endianness(kLittleEndian); + fat + .D32(0xfeedface) // Mach-O file magic number + .D32(0x1a9d0518) // cpu type + .D32(0x1b779357) // cpu subtype + .D32(0x009df67e) // file type + .D32(0) // no load commands + .D32(0) // the load commands occupy no bytes + .D32(0x21987a99); // flags + + ReadFat(); + + // FatReader should treat a Mach-O file as if it were a fat binary file + // containing one object file --- the whole thing. + ASSERT_EQ(1U, object_files.size()); + EXPECT_EQ(0x1a9d0518, object_files[0].cputype); + EXPECT_EQ(0x1b779357, object_files[0].cpusubtype); + EXPECT_EQ(0U, object_files[0].offset); + EXPECT_EQ(contents.size(), object_files[0].size); +} + +TEST_F(FatReaderTest, LittleEndianMachO64) { + fat.set_endianness(kLittleEndian); + fat + .D32(0xfeedfacf) // Mach-O 64-bit file magic number + .D32(0x5aff8487) // cpu type + .D32(0x4c6a57f7) // cpu subtype + .D32(0x4392d2c8) // file type + .D32(0) // no load commands + .D32(0) // the load commands occupy no bytes + .D32(0x1b033eea); // flags + + ReadFat(); + + // FatReader should treat a Mach-O file as if it were a fat binary file + // containing one object file --- the whole thing. + ASSERT_EQ(1U, object_files.size()); + EXPECT_EQ(0x5aff8487, object_files[0].cputype); + EXPECT_EQ(0x4c6a57f7, object_files[0].cpusubtype); + EXPECT_EQ(0U, object_files[0].offset); + EXPECT_EQ(contents.size(), object_files[0].size); +} + +TEST_F(FatReaderTest, IncompleteMach) { + fat.set_endianness(kLittleEndian); + fat + .D32(0xfeedfacf) // Mach-O 64-bit file magic number + .D32(0x5aff8487); // cpu type + // Truncated! + + EXPECT_CALL(reporter, TooShort()).WillOnce(Return()); + + ReadFat(false); +} + + +// General mach_o::Reader tests. + +// Dynamically scoped configuration data. +class WithConfiguration { + public: + // Establish the given parameters as the default for SizedSections + // created within the dynamic scope of this instance. + WithConfiguration(Endianness endianness, size_t word_size) + : endianness_(endianness), word_size_(word_size), saved_(current_) { + current_ = this; + } + ~WithConfiguration() { current_ = saved_; } + static Endianness endianness() { + assert(current_); + return current_->endianness_; + } + static size_t word_size() { + assert(current_); + return current_->word_size_; + } + + private: + // The innermost WithConfiguration in whose dynamic scope we are + // currently executing. + static WithConfiguration *current_; + + // The innermost WithConfiguration whose dynamic scope encloses this + // WithConfiguration. + Endianness endianness_; + size_t word_size_; + WithConfiguration *saved_; +}; + +WithConfiguration *WithConfiguration::current_ = NULL; + +// A test_assembler::Section with a size that we can cite. The start(), +// Here() and Mark() member functions of a SizedSection always represent +// offsets within the overall file. +class SizedSection: public test_assembler::Section { + public: + // Construct a section of the given endianness and word size. + explicit SizedSection(Endianness endianness, size_t word_size) + : test_assembler::Section(endianness), word_size_(word_size) { + assert(word_size_ == 32 || word_size_ == 64); + } + SizedSection() + : test_assembler::Section(WithConfiguration::endianness()), + word_size_(WithConfiguration::word_size()) { + assert(word_size_ == 32 || word_size_ == 64); + } + + // Access/set this section's word size. + size_t word_size() const { return word_size_; } + void set_word_size(size_t word_size) { + assert(word_size_ == 32 || word_size_ == 64); + word_size_ = word_size; + } + + // Return a label representing the size this section will have when it + // is Placed in some containing section. + Label final_size() const { return final_size_; } + + // Append SECTION to the end of this section, and call its Finish member. + // Return a reference to this section. + SizedSection &Place(SizedSection *section) { + assert(section->endianness() == endianness()); + section->Finish(); + section->start() = Here(); + test_assembler::Section::Append(*section); + return *this; + } + + protected: + // Mark this section's contents as complete. For plain SizedSections, we + // set SECTION's start to its position in this section, and its final_size + // label to its current size. Derived classes can extend this as needed + // for their additional semantics. + virtual void Finish() { + final_size_ = Size(); + } + + // The word size for this data: either 32 or 64. + size_t word_size_; + + private: + // This section's final size, set when we are placed in some other + // SizedSection. + Label final_size_; +}; + +// A SizedSection that is loaded into memory at a particular address. +class LoadedSection: public SizedSection { + public: + explicit LoadedSection(Label address = Label()) : address_(address) { } + + // Return a label representing this section's address. + Label address() const { return address_; } + + // Placing a loaded section within a loaded section sets the relationship + // between their addresses. + LoadedSection &Place(LoadedSection *section) { + section->address() = address() + Size(); + SizedSection::Place(section); + return *this; + } + + protected: + // The address at which this section's contents will be loaded. + Label address_; +}; + +// A SizedSection representing a segment load command. +class SegmentLoadCommand: public SizedSection { + public: + SegmentLoadCommand() : section_count_(0) { } + + // Append a segment load command header with the given characteristics. + // The load command will refer to CONTENTS, which must be Placed in the + // file separately, at the desired position. Return a reference to this + // section. + SegmentLoadCommand &Header(const string &name, const LoadedSection &contents, + uint32_t maxprot, uint32_t initprot, + uint32_t flags) { + assert(contents.word_size() == word_size()); + D32(word_size() == 32 ? LC_SEGMENT : LC_SEGMENT_64); + D32(final_size()); + AppendCString(name, 16); + Append(endianness(), word_size() / 8, contents.address()); + Append(endianness(), word_size() / 8, vmsize_); + Append(endianness(), word_size() / 8, contents.start()); + Append(endianness(), word_size() / 8, contents.final_size()); + D32(maxprot); + D32(initprot); + D32(final_section_count_); + D32(flags); + + content_final_size_ = contents.final_size(); + + return *this; + } + + // Return a label representing the size of this segment when loaded into + // memory. If this label is still undefined by the time we place this + // segment, it defaults to the final size of the segment's in-file + // contents. Return a reference to this load command. + Label &vmsize() { return vmsize_; } + + // Add a section entry with the given characteristics to this segment + // load command. Return a reference to this. The section entry will refer + // to CONTENTS, which must be Placed in the segment's contents + // separately, at the desired position. + SegmentLoadCommand &AppendSectionEntry(const string §ion_name, + const string &segment_name, + uint32_t alignment, uint32_t flags, + const LoadedSection &contents) { + AppendCString(section_name, 16); + AppendCString(segment_name, 16); + Append(endianness(), word_size() / 8, contents.address()); + Append(endianness(), word_size() / 8, contents.final_size()); + D32(contents.start()); + D32(alignment); + D32(0); // relocations start + D32(0); // relocations size + D32(flags); + D32(0x93656b95); // reserved1 + D32(0xc35a2473); // reserved2 + if (word_size() == 64) + D32(0x70284b95); // reserved3 + + section_count_++; + + return *this; + } + + protected: + void Finish() { + final_section_count_ = section_count_; + if (!vmsize_.IsKnownConstant()) + vmsize_ = content_final_size_; + SizedSection::Finish(); + } + + private: + // The number of sections that have been added to this segment so far. + size_t section_count_; + + // A label representing the final number of sections this segment will hold. + Label final_section_count_; + + // The size of the contents for this segment present in the file. + Label content_final_size_; + + // A label representing the size of this segment when loaded; this can be + // larger than the size of its file contents, the difference being + // zero-filled. If not set explicitly by calling set_vmsize, this is set + // equal to the size of the contents. + Label vmsize_; +}; + +// A SizedSection holding a list of Mach-O load commands. +class LoadCommands: public SizedSection { + public: + LoadCommands() : command_count_(0) { } + + // Return a label representing the final load command count. + Label final_command_count() const { return final_command_count_; } + + // Increment the command count; return a reference to this section. + LoadCommands &CountCommand() { + command_count_++; + return *this; + } + + // Place COMMAND, containing a load command, at the end of this section. + // Return a reference to this section. + LoadCommands &Place(SizedSection *section) { + SizedSection::Place(section); + CountCommand(); + return *this; + } + + protected: + // Mark this load command list as complete. + void Finish() { + SizedSection::Finish(); + final_command_count_ = command_count_; + } + + private: + // The number of load commands we have added to this file so far. + size_t command_count_; + + // A label representing the final command count. + Label final_command_count_; +}; + +// A SizedSection holding the contents of a Mach-O file. Within a +// MachOFile, the start, Here, and Mark members refer to file offsets. +class MachOFile: public SizedSection { + public: + MachOFile() { + start() = 0; + } + + // Create a Mach-O file header using the given characteristics and load + // command list. This Places COMMANDS immediately after the header. + // Return a reference to this section. + MachOFile &Header(LoadCommands *commands, + cpu_type_t cpu_type = CPU_TYPE_X86, + cpu_subtype_t cpu_subtype = CPU_SUBTYPE_I386_ALL, + FileType file_type = MH_EXECUTE, + uint32_t file_flags = (MH_TWOLEVEL | + MH_DYLDLINK | + MH_NOUNDEFS)) { + D32(word_size() == 32 ? 0xfeedface : 0xfeedfacf); // magic number + D32(cpu_type); // cpu type + D32(cpu_subtype); // cpu subtype + D32(file_type); // file type + D32(commands->final_command_count()); // number of load commands + D32(commands->final_size()); // their size in bytes + D32(file_flags); // flags + if (word_size() == 64) + D32(0x55638b90); // reserved + Place(commands); + return *this; + } +}; + + +struct ReaderFixture { + ReaderFixture() + : reporter("reporter filename"), + reader(&reporter) { + EXPECT_CALL(reporter, BadHeader()).Times(0); + EXPECT_CALL(reporter, CPUTypeMismatch(_, _, _, _)).Times(0); + EXPECT_CALL(reporter, HeaderTruncated()).Times(0); + EXPECT_CALL(reporter, LoadCommandRegionTruncated()).Times(0); + EXPECT_CALL(reporter, LoadCommandsOverrun(_, _, _)).Times(0); + EXPECT_CALL(reporter, LoadCommandTooShort(_, _)).Times(0); + EXPECT_CALL(reporter, SectionsMissing(_)).Times(0); + EXPECT_CALL(reporter, MisplacedSegmentData(_)).Times(0); + EXPECT_CALL(reporter, MisplacedSectionData(_, _)).Times(0); + EXPECT_CALL(reporter, MisplacedSymbolTable()).Times(0); + EXPECT_CALL(reporter, UnsupportedCPUType(_)).Times(0); + + EXPECT_CALL(load_command_handler, UnknownCommand(_, _)).Times(0); + EXPECT_CALL(load_command_handler, SegmentCommand(_)).Times(0); + } + + void ReadFile(MachOFile *file, + bool expect_parse_success, + cpu_type_t expected_cpu_type, + cpu_subtype_t expected_cpu_subtype) { + ASSERT_TRUE(file->GetContents(&file_contents)); + file_bytes = reinterpret_cast<const uint8_t *>(file_contents.data()); + if (expect_parse_success) { + EXPECT_TRUE(reader.Read(file_bytes, + file_contents.size(), + expected_cpu_type, + expected_cpu_subtype)); + } else { + EXPECT_FALSE(reader.Read(file_bytes, + file_contents.size(), + expected_cpu_type, + expected_cpu_subtype)); + } + } + + string file_contents; + const uint8_t *file_bytes; + MockReaderReporter reporter; + Reader reader; + MockLoadCommandHandler load_command_handler; + MockSectionHandler section_handler; +}; + +class ReaderTest: public ReaderFixture, public Test { }; + +TEST_F(ReaderTest, BadMagic) { + WithConfiguration config(kLittleEndian, 32); + const cpu_type_t kCPUType = 0x46b760df; + const cpu_subtype_t kCPUSubType = 0x76a0e7f7; + MachOFile file; + file + .D32(0x67bdebe1) // Not a proper magic number. + .D32(kCPUType) // cpu type + .D32(kCPUSubType) // cpu subtype + .D32(0x149fc717) // file type + .D32(0) // no load commands + .D32(0) // they occupy no bytes + .D32(0x80e71d64) // flags + .D32(0); // reserved + EXPECT_CALL(reporter, BadHeader()).WillOnce(Return()); + ReadFile(&file, false, CPU_TYPE_ANY, kCPUSubType); +} + +TEST_F(ReaderTest, MismatchedMagic) { + WithConfiguration config(kLittleEndian, 32); + const cpu_type_t kCPUType = CPU_TYPE_I386; + const cpu_subtype_t kCPUSubType = CPU_SUBTYPE_X86_ALL; + MachOFile file; + file + .D32(MH_CIGAM) // Right magic, but winds up wrong + // due to bitswapping + .D32(kCPUType) // cpu type + .D32(kCPUSubType) // cpu subtype + .D32(0x149fc717) // file type + .D32(0) // no load commands + .D32(0) // they occupy no bytes + .D32(0x80e71d64) // flags + .D32(0); // reserved + EXPECT_CALL(reporter, BadHeader()).WillOnce(Return()); + ReadFile(&file, false, kCPUType, kCPUSubType); +} + +TEST_F(ReaderTest, ShortMagic) { + WithConfiguration config(kBigEndian, 32); + MachOFile file; + file + .D16(0xfeed); // magic number + // truncated! + EXPECT_CALL(reporter, HeaderTruncated()).WillOnce(Return()); + ReadFile(&file, false, CPU_TYPE_ANY, 0); +} + +TEST_F(ReaderTest, ShortHeader) { + WithConfiguration config(kBigEndian, 32); + const cpu_type_t kCPUType = CPU_TYPE_ANY; + const cpu_subtype_t kCPUSubType = 0x76a0e7f7; + MachOFile file; + file + .D32(0xfeedface) // magic number + .D32(kCPUType) // cpu type + .D32(kCPUSubType) // cpu subtype + .D32(0x149fc717) // file type + .D32(0) // no load commands + .D32(0); // they occupy no bytes + EXPECT_CALL(reporter, HeaderTruncated()).WillOnce(Return()); + ReadFile(&file, false, CPU_TYPE_ANY, kCPUSubType); +} + +TEST_F(ReaderTest, MismatchedCPU) { + WithConfiguration config(kBigEndian, 32); + const cpu_type_t kCPUType = CPU_TYPE_I386; + const cpu_subtype_t kCPUSubType = CPU_SUBTYPE_X86_ALL; + MachOFile file; + file + .D32(MH_MAGIC) // Right magic for PPC (once bitswapped) + .D32(kCPUType) // cpu type + .D32(kCPUSubType) // cpu subtype + .D32(0x149fc717) // file type + .D32(0) // no load commands + .D32(0) // they occupy no bytes + .D32(0x80e71d64) // flags + .D32(0); // reserved + EXPECT_CALL(reporter, + CPUTypeMismatch(CPU_TYPE_I386, CPU_SUBTYPE_X86_ALL, + CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_ALL)) + .WillOnce(Return()); + ReadFile(&file, false, CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_ALL); +} + +TEST_F(ReaderTest, LittleEndian32Bit) { + WithConfiguration config(kLittleEndian, 32); + const cpu_type_t kCPUType = 0x46b760df; + const cpu_subtype_t kCPUSubType = 0x76a0e7f7; + MachOFile file; + file + .D32(0xfeedface) // magic number + .D32(kCPUType) // cpu type + .D32(kCPUSubType) // cpu subtype + .D32(0x149fc717) // file type + .D32(0) // no load commands + .D32(0) // they occupy no bytes + .D32(0x80e71d64) // flags + .D32(0); // reserved + ReadFile(&file, true, CPU_TYPE_ANY, kCPUSubType); + EXPECT_FALSE(reader.bits_64()); + EXPECT_FALSE(reader.big_endian()); + EXPECT_EQ(kCPUType, reader.cpu_type()); + EXPECT_EQ(kCPUSubType, reader.cpu_subtype()); + EXPECT_EQ(FileType(0x149fc717), reader.file_type()); + EXPECT_EQ(FileFlags(0x80e71d64), reader.flags()); +} + +TEST_F(ReaderTest, LittleEndian64Bit) { + WithConfiguration config(kLittleEndian, 64); + const cpu_type_t kCPUType = 0x46b760df; + const cpu_subtype_t kCPUSubType = 0x76a0e7f7; + MachOFile file; + file + .D32(0xfeedfacf) // magic number + .D32(kCPUType) // cpu type + .D32(kCPUSubType) // cpu subtype + .D32(0x149fc717) // file type + .D32(0) // no load commands + .D32(0) // they occupy no bytes + .D32(0x80e71d64) // flags + .D32(0); // reserved + ReadFile(&file, true, CPU_TYPE_ANY, kCPUSubType); + EXPECT_TRUE(reader.bits_64()); + EXPECT_FALSE(reader.big_endian()); + EXPECT_EQ(kCPUType, reader.cpu_type()); + EXPECT_EQ(kCPUSubType, reader.cpu_subtype()); + EXPECT_EQ(FileType(0x149fc717), reader.file_type()); + EXPECT_EQ(FileFlags(0x80e71d64), reader.flags()); +} + +TEST_F(ReaderTest, BigEndian32Bit) { + WithConfiguration config(kBigEndian, 32); + const cpu_type_t kCPUType = 0x46b760df; + const cpu_subtype_t kCPUSubType = 0x76a0e7f7; + MachOFile file; + file + .D32(0xfeedface) // magic number + .D32(kCPUType) // cpu type + .D32(kCPUSubType) // cpu subtype + .D32(0x149fc717) // file type + .D32(0) // no load commands + .D32(0) // they occupy no bytes + .D32(0x80e71d64) // flags + .D32(0); // reserved + ReadFile(&file, true, CPU_TYPE_ANY, kCPUSubType); + EXPECT_FALSE(reader.bits_64()); + EXPECT_TRUE(reader.big_endian()); + EXPECT_EQ(kCPUType, reader.cpu_type()); + EXPECT_EQ(kCPUSubType, reader.cpu_subtype()); + EXPECT_EQ(FileType(0x149fc717), reader.file_type()); + EXPECT_EQ(FileFlags(0x80e71d64), reader.flags()); +} + +TEST_F(ReaderTest, BigEndian64Bit) { + WithConfiguration config(kBigEndian, 64); + const cpu_type_t kCPUType = 0x46b760df; + const cpu_subtype_t kCPUSubType = 0x76a0e7f7; + MachOFile file; + file + .D32(0xfeedfacf) // magic number + .D32(kCPUType) // cpu type + .D32(kCPUSubType) // cpu subtype + .D32(0x149fc717) // file type + .D32(0) // no load commands + .D32(0) // they occupy no bytes + .D32(0x80e71d64) // flags + .D32(0); // reserved + ReadFile(&file, true, CPU_TYPE_ANY, kCPUSubType); + EXPECT_TRUE(reader.bits_64()); + EXPECT_TRUE(reader.big_endian()); + EXPECT_EQ(kCPUType, reader.cpu_type()); + EXPECT_EQ(kCPUSubType, reader.cpu_subtype()); + EXPECT_EQ(FileType(0x149fc717), reader.file_type()); + EXPECT_EQ(FileFlags(0x80e71d64), reader.flags()); +} + + +// Load command tests. + +class LoadCommand: public ReaderFixture, public Test { }; + +TEST_F(LoadCommand, RegionTruncated) { + WithConfiguration config(kBigEndian, 64); + const cpu_type_t kCPUType = 0x46b760df; + const cpu_subtype_t kCPUSubType = 0x76a0e7f7; + MachOFile file; + file + .D32(0xfeedfacf) // magic number + .D32(kCPUType) // cpu type + .D32(kCPUSubType) // cpu subtype + .D32(0x149fc717) // file type + .D32(1) // one load command + .D32(40) // occupying 40 bytes + .D32(0x80e71d64) // flags + .D32(0) // reserved + .Append(20, 0); // load command region, not as long as + // Mach-O header promised + + EXPECT_CALL(reporter, LoadCommandRegionTruncated()).WillOnce(Return()); + + ReadFile(&file, false, CPU_TYPE_ANY, kCPUSubType); +} + +TEST_F(LoadCommand, None) { + WithConfiguration config(kLittleEndian, 32); + LoadCommands load_commands; + MachOFile file; + file.Header(&load_commands); + + ReadFile(&file, true, CPU_TYPE_X86, CPU_SUBTYPE_I386_ALL); + + EXPECT_FALSE(reader.bits_64()); + EXPECT_FALSE(reader.big_endian()); + EXPECT_EQ(CPU_TYPE_X86, reader.cpu_type()); + EXPECT_EQ(CPU_SUBTYPE_I386_ALL, reader.cpu_subtype()); + EXPECT_EQ(static_cast<uint32_t>(MH_EXECUTE), reader.file_type()); + EXPECT_EQ(FileFlags(MH_TWOLEVEL | + MH_DYLDLINK | + MH_NOUNDEFS), + FileFlags(reader.flags())); + + EXPECT_TRUE(reader.WalkLoadCommands(&load_command_handler)); +} + +TEST_F(LoadCommand, Unknown) { + WithConfiguration config(kBigEndian, 32); + LoadCommands load_commands; + load_commands + .CountCommand() + .D32(0x33293d4a) // unknown load command + .D32(40) // total size in bytes + .Append(32, '*'); // dummy data + MachOFile file; + file.Header(&load_commands); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + EXPECT_FALSE(reader.bits_64()); + EXPECT_TRUE(reader.big_endian()); + EXPECT_EQ(CPU_TYPE_X86, reader.cpu_type()); + EXPECT_EQ(CPU_SUBTYPE_I386_ALL, reader.cpu_subtype()); + EXPECT_EQ(static_cast<uint32_t>(MH_EXECUTE), reader.file_type()); + EXPECT_EQ(FileFlags(MH_TWOLEVEL | + MH_DYLDLINK | + MH_NOUNDEFS), + reader.flags()); + + ByteBuffer expected; + expected.start = file_bytes + load_commands.start().Value(); + expected.end = expected.start + load_commands.final_size().Value(); + EXPECT_CALL(load_command_handler, UnknownCommand(0x33293d4a, + expected)) + .WillOnce(Return(true)); + + EXPECT_TRUE(reader.WalkLoadCommands(&load_command_handler)); +} + +TEST_F(LoadCommand, TypeIncomplete) { + WithConfiguration config(kLittleEndian, 32); + LoadCommands load_commands; + load_commands + .CountCommand() + .Append(3, 0); // load command type, incomplete + + MachOFile file; + file.Header(&load_commands); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + EXPECT_CALL(reporter, LoadCommandsOverrun(1, 0, 0)) + .WillOnce(Return()); + EXPECT_FALSE(reader.WalkLoadCommands(&load_command_handler)); +} + +TEST_F(LoadCommand, LengthIncomplete) { + WithConfiguration config(kBigEndian, 64); + LoadCommands load_commands; + load_commands + .CountCommand() + .D32(LC_SEGMENT); // load command + // no length + MachOFile file; + file.Header(&load_commands); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + EXPECT_CALL(reporter, LoadCommandsOverrun(1, 0, LC_SEGMENT)) + .WillOnce(Return()); + EXPECT_FALSE(reader.WalkLoadCommands(&load_command_handler)); +} + +TEST_F(LoadCommand, ContentIncomplete) { + WithConfiguration config(kLittleEndian, 64); + LoadCommands load_commands; + load_commands + .CountCommand() + .D32(LC_SEGMENT) // load command + .D32(40) // total size in bytes + .Append(28, '*'); // not enough dummy data + MachOFile file; + file.Header(&load_commands); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + EXPECT_CALL(reporter, LoadCommandsOverrun(1, 0, LC_SEGMENT)) + .WillOnce(Return()); + EXPECT_FALSE(reader.WalkLoadCommands(&load_command_handler)); +} + +TEST_F(LoadCommand, SegmentBE32) { + WithConfiguration config(kBigEndian, 32); + LoadedSection segment; + segment.address() = 0x1891139c; + segment.Append(42, '*'); // segment contents + SegmentLoadCommand segment_command; + segment_command + .Header("froon", segment, 0x94d6dd22, 0x8bdbc319, 0x990a16dd); + segment_command.vmsize() = 0xcb76584fU; + LoadCommands load_commands; + load_commands.Place(&segment_command); + MachOFile file; + file + .Header(&load_commands) + .Place(&segment); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + Segment actual_segment; + EXPECT_CALL(load_command_handler, SegmentCommand(_)) + .WillOnce(DoAll(SaveArg<0>(&actual_segment), + Return(true))); + EXPECT_TRUE(reader.WalkLoadCommands(&load_command_handler)); + + EXPECT_FALSE(actual_segment.bits_64); + EXPECT_EQ("froon", actual_segment.name); + EXPECT_EQ(0x1891139cU, actual_segment.vmaddr); + EXPECT_EQ(0xcb76584fU, actual_segment.vmsize); + EXPECT_EQ(0x94d6dd22U, actual_segment.maxprot); + EXPECT_EQ(0x8bdbc319U, actual_segment.initprot); + EXPECT_EQ(0x990a16ddU, actual_segment.flags); + EXPECT_EQ(0U, actual_segment.nsects); + EXPECT_EQ(0U, actual_segment.section_list.Size()); + EXPECT_EQ(segment.final_size().Value(), actual_segment.contents.Size()); +} + +TEST_F(LoadCommand, SegmentLE32) { + WithConfiguration config(kLittleEndian, 32); + LoadedSection segment; + segment.address() = 0x4b877866; + segment.Append(42, '*'); // segment contents + SegmentLoadCommand segment_command; + segment_command + .Header("sixteenprecisely", segment, + 0x350759ed, 0x6cf5a62e, 0x990a16dd); + segment_command.vmsize() = 0xcb76584fU; + LoadCommands load_commands; + load_commands.Place(&segment_command); + MachOFile file; + file + .Header(&load_commands) + .Place(&segment); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + Segment actual_segment; + EXPECT_CALL(load_command_handler, SegmentCommand(_)) + .WillOnce(DoAll(SaveArg<0>(&actual_segment), + Return(true))); + EXPECT_TRUE(reader.WalkLoadCommands(&load_command_handler)); + + EXPECT_FALSE(actual_segment.bits_64); + EXPECT_EQ("sixteenprecisely", actual_segment.name); + EXPECT_EQ(0x4b877866U, actual_segment.vmaddr); + EXPECT_EQ(0xcb76584fU, actual_segment.vmsize); + EXPECT_EQ(0x350759edU, actual_segment.maxprot); + EXPECT_EQ(0x6cf5a62eU, actual_segment.initprot); + EXPECT_EQ(0x990a16ddU, actual_segment.flags); + EXPECT_EQ(0U, actual_segment.nsects); + EXPECT_EQ(0U, actual_segment.section_list.Size()); + EXPECT_EQ(segment.final_size().Value(), actual_segment.contents.Size()); +} + +TEST_F(LoadCommand, SegmentBE64) { + WithConfiguration config(kBigEndian, 64); + LoadedSection segment; + segment.address() = 0x79f484f77009e511ULL; + segment.Append(42, '*'); // segment contents + SegmentLoadCommand segment_command; + segment_command + .Header("froon", segment, 0x42b45da5, 0x8bdbc319, 0xb2335220); + segment_command.vmsize() = 0x8d92397ce6248abaULL; + LoadCommands load_commands; + load_commands.Place(&segment_command); + MachOFile file; + file + .Header(&load_commands) + .Place(&segment); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + Segment actual_segment; + EXPECT_CALL(load_command_handler, SegmentCommand(_)) + .WillOnce(DoAll(SaveArg<0>(&actual_segment), + Return(true))); + EXPECT_TRUE(reader.WalkLoadCommands(&load_command_handler)); + + EXPECT_EQ(true, actual_segment.bits_64); + EXPECT_EQ("froon", actual_segment.name); + EXPECT_EQ(0x79f484f77009e511ULL, actual_segment.vmaddr); + EXPECT_EQ(0x8d92397ce6248abaULL, actual_segment.vmsize); + EXPECT_EQ(0x42b45da5U, actual_segment.maxprot); + EXPECT_EQ(0x8bdbc319U, actual_segment.initprot); + EXPECT_EQ(0xb2335220U, actual_segment.flags); + EXPECT_EQ(0U, actual_segment.nsects); + EXPECT_EQ(0U, actual_segment.section_list.Size()); + EXPECT_EQ(segment.final_size().Value(), actual_segment.contents.Size()); +} + +TEST_F(LoadCommand, SegmentLE64) { + WithConfiguration config(kLittleEndian, 64); + LoadedSection segment; + segment.address() = 0x50c0501dc5922d35ULL; + segment.Append(42, '*'); // segment contents + SegmentLoadCommand segment_command; + segment_command + .Header("sixteenprecisely", segment, + 0x917c339d, 0xdbc446fa, 0xb650b563); + segment_command.vmsize() = 0x84ae73e7c75469bfULL; + LoadCommands load_commands; + load_commands.Place(&segment_command); + MachOFile file; + file + .Header(&load_commands) + .Place(&segment); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + Segment actual_segment; + EXPECT_CALL(load_command_handler, SegmentCommand(_)) + .WillOnce(DoAll(SaveArg<0>(&actual_segment), + Return(true))); + EXPECT_TRUE(reader.WalkLoadCommands(&load_command_handler)); + + EXPECT_EQ(true, actual_segment.bits_64); + EXPECT_EQ("sixteenprecisely", actual_segment.name); + EXPECT_EQ(0x50c0501dc5922d35ULL, actual_segment.vmaddr); + EXPECT_EQ(0x84ae73e7c75469bfULL, actual_segment.vmsize); + EXPECT_EQ(0x917c339dU, actual_segment.maxprot); + EXPECT_EQ(0xdbc446faU, actual_segment.initprot); + EXPECT_EQ(0xb650b563U, actual_segment.flags); + EXPECT_EQ(0U, actual_segment.nsects); + EXPECT_EQ(0U, actual_segment.section_list.Size()); + EXPECT_EQ(segment.final_size().Value(), actual_segment.contents.Size()); +} + +TEST_F(LoadCommand, SegmentCommandTruncated) { + WithConfiguration config(kBigEndian, 32); + LoadedSection segment_contents; + segment_contents.Append(20, '*'); // lah di dah + SizedSection command; + command + .D32(LC_SEGMENT) // command type + .D32(command.final_size()) // command size + .AppendCString("too-short", 16) // segment name + .D32(0x9c759211) // vmaddr + .D32(segment_contents.final_size()) // vmsize + .D32(segment_contents.start()) // file offset + .D32(segment_contents.final_size()) // file size + .D32(0x56f28446) // max protection + .D32(0xe7910dcb) // initial protection + .D32(0) // no sections + .Append(3, 0); // flags (one byte short!) + LoadCommands load_commands; + load_commands.Place(&command); + MachOFile file; + file + .Header(&load_commands) + .Place(&segment_contents); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + EXPECT_CALL(reporter, LoadCommandTooShort(0, LC_SEGMENT)) + .WillOnce(Return()); + + EXPECT_FALSE(reader.WalkLoadCommands(&load_command_handler)); +} + +TEST_F(LoadCommand, SegmentBadContentOffset) { + WithConfiguration config(kLittleEndian, 32); + // Instead of letting a Place call set the segment's file offset and size, + // set them ourselves, to check that the parser catches invalid offsets + // instead of handing us bogus pointers. + LoadedSection segment; + segment.address() = 0x4db5489c; + segment.start() = 0x7e189e76; // beyond end of file + segment.final_size() = 0x98b9c3ab; + SegmentLoadCommand segment_command; + segment_command + .Header("notmerelyfifteen", segment, 0xcbab25ee, 0x359a20db, 0x68a3933f); + LoadCommands load_commands; + load_commands.Place(&segment_command); + MachOFile file; + file.Header(&load_commands); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + EXPECT_CALL(reporter, MisplacedSegmentData("notmerelyfifteen")) + .WillOnce(Return()); + + EXPECT_FALSE(reader.WalkLoadCommands(&load_command_handler)); +} + +TEST_F(LoadCommand, ThreeLoadCommands) { + WithConfiguration config(kBigEndian, 32); + LoadedSection seg1, seg2, seg3; + SegmentLoadCommand cmd1, cmd2, cmd3; + + seg1.Append(128, '@'); + seg1.address() = 0xa7f61ef6; + cmd1.Header("head", seg1, 0x88bf1cc7, 0x889a26a4, 0xe9b80d87); + // Include some dummy data at the end of the load command. Since we + // didn't claim to have any sections, the reader should ignore this. But + // making sure the commands have different lengths ensures that we're + // using the right command's length to advance the LoadCommandIterator. + cmd1.Append(128, '!'); + + seg2.Append(42, '*'); + seg2.address() = 0xc70fc909; + cmd2.Header("thorax", seg2, 0xde7327f4, 0xfdaf771d, 0x65e74b30); + // More dummy data at the end of the load command. + cmd2.Append(32, '^'); + + seg3.Append(42, '%'); + seg3.address() = 0x46b3ab05; + cmd3.Header("abdomen", seg3, 0x7098b70d, 0x8d8d7728, 0x5131419b); + // More dummy data at the end of the load command. + cmd3.Append(64, '&'); + + LoadCommands load_commands; + load_commands.Place(&cmd1).Place(&cmd2).Place(&cmd3); + + MachOFile file; + file.Header(&load_commands).Place(&seg1).Place(&seg2).Place(&seg3); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + { + InSequence s; + EXPECT_CALL(load_command_handler, + SegmentCommand(Field(&Segment::name, "head"))) + .WillOnce(Return(true)); + EXPECT_CALL(load_command_handler, + SegmentCommand(Field(&Segment::name, "thorax"))) + .WillOnce(Return(true)); + EXPECT_CALL(load_command_handler, + SegmentCommand(Field(&Segment::name, "abdomen"))) + .WillOnce(Return(true)); + } + + EXPECT_TRUE(reader.WalkLoadCommands(&load_command_handler)); +} + +static inline Matcher<const Section &> MatchSection( + Matcher<bool> bits_64, + Matcher<const string &> section_name, + Matcher<const string &> segment_name, + Matcher<uint64_t> address, + Matcher<uint32_t> alignment, + Matcher<uint32_t> flags, + Matcher<const ByteBuffer &> contents) { + return AllOf(AllOf(Field(&Section::bits_64, bits_64), + Field(&Section::section_name, section_name), + Field(&Section::segment_name, segment_name), + Field(&Section::address, address)), + AllOf(Field(&Section::align, alignment), + Field(&Section::flags, flags), + Field(&Section::contents, contents))); +} + +static inline Matcher<const Section &> MatchSection( + Matcher<bool> bits_64, + Matcher<const string &> section_name, + Matcher<const string &> segment_name, + Matcher<uint64_t> address) { + return AllOf(Field(&Section::bits_64, bits_64), + Field(&Section::section_name, section_name), + Field(&Section::segment_name, segment_name), + Field(&Section::address, address)); +} + +TEST_F(LoadCommand, OneSegmentTwoSections) { + WithConfiguration config(kBigEndian, 64); + + // Create some sections with some data. + LoadedSection section1, section2; + section1.Append("buddha's hand"); + section2.Append("kumquat"); + + // Create a segment to hold them. + LoadedSection segment; + segment.address() = 0xe1d0eeec; + segment.Place(§ion2).Place(§ion1); + + SegmentLoadCommand segment_command; + segment_command + .Header("head", segment, 0x92c9568c, 0xa89f2627, 0x4dc7a1e2) + .AppendSectionEntry("mandarin", "kishu", 12, 0x8cd4604bU, section1) + .AppendSectionEntry("bergamot", "cara cara", 12, 0x98746efaU, section2); + + LoadCommands commands; + commands.Place(&segment_command); + + MachOFile file; + file.Header(&commands).Place(&segment); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + Segment actual_segment; + EXPECT_CALL(load_command_handler, SegmentCommand(_)) + .WillOnce(DoAll(SaveArg<0>(&actual_segment), + Return(true))); + EXPECT_TRUE(reader.WalkLoadCommands(&load_command_handler)); + + { + InSequence s; + ByteBuffer contents1; + contents1.start = file_bytes + section1.start().Value(); + contents1.end = contents1.start + section1.final_size().Value(); + EXPECT_EQ("buddha's hand", + string(reinterpret_cast<const char *>(contents1.start), + contents1.Size())); + EXPECT_CALL(section_handler, + HandleSection(MatchSection(true, "mandarin", "kishu", + section1.address().Value(), 12, + 0x8cd4604bU, contents1))) + .WillOnce(Return(true)); + + ByteBuffer contents2; + contents2.start = file_bytes + section2.start().Value(); + contents2.end = contents2.start + section2.final_size().Value(); + EXPECT_EQ("kumquat", + string(reinterpret_cast<const char *>(contents2.start), + contents2.Size())); + EXPECT_CALL(section_handler, + HandleSection(MatchSection(true, "bergamot", "cara cara", + section2.address().Value(), 12, + 0x98746efaU, contents2))) + .WillOnce(Return(true)); + } + + EXPECT_TRUE(reader.WalkSegmentSections(actual_segment, §ion_handler)); +} + +TEST_F(LoadCommand, MisplacedSectionBefore) { + WithConfiguration config(kLittleEndian, 64); + + // The segment. + LoadedSection segment; + segment.address() = 0x696d83cc; + segment.Append(10, '0'); + + // The contents of the following sections don't matter, because + // we're not really going to Place them in segment; we're just going + // to set all their labels by hand to get the (impossible) + // configurations we want. + + // A section whose starting offset is before that of its section. + LoadedSection before; + before.Append(10, '1'); + before.start() = segment.start() - 1; + before.address() = segment.address() - 1; + before.final_size() = before.Size(); + + SegmentLoadCommand command; + command + .Header("segment", segment, 0x173baa29, 0x8407275d, 0xed8f7057) + .AppendSectionEntry("before", "segment", 0, 0x686c6921, before); + + LoadCommands commands; + commands.Place(&command); + + MachOFile file; + file.Header(&commands).Place(&segment); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + Segment actual_segment; + EXPECT_TRUE(reader.FindSegment("segment", &actual_segment)); + + EXPECT_CALL(reporter, MisplacedSectionData("before", "segment")) + .WillOnce(Return()); + EXPECT_FALSE(reader.WalkSegmentSections(actual_segment, §ion_handler)); +} + +TEST_F(LoadCommand, MisplacedSectionAfter) { + WithConfiguration config(kLittleEndian, 64); + + // The segment. + LoadedSection segment; + segment.address() = 0x696d83cc; + segment.Append(10, '0'); + + // The contents of the following sections don't matter, because + // we're not really going to Place them in segment; we're just going + // to set all their labels by hand to get the (impossible) + // configurations we want. + + // A section whose starting offset is after the end of its section. + LoadedSection after; + after.Append(10, '2'); + after.start() = segment.start() + 11; + after.address() = segment.address() + 11; + after.final_size() = after.Size(); + + SegmentLoadCommand command; + command + .Header("segment", segment, 0x173baa29, 0x8407275d, 0xed8f7057) + .AppendSectionEntry("after", "segment", 0, 0x2ee50124, after); + + LoadCommands commands; + commands.Place(&command); + + MachOFile file; + file.Header(&commands).Place(&segment); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + Segment actual_segment; + EXPECT_TRUE(reader.FindSegment("segment", &actual_segment)); + + EXPECT_CALL(reporter, MisplacedSectionData("after", "segment")) + .WillOnce(Return()); + EXPECT_FALSE(reader.WalkSegmentSections(actual_segment, §ion_handler)); +} + +TEST_F(LoadCommand, MisplacedSectionTooBig) { + WithConfiguration config(kLittleEndian, 64); + + // The segment. + LoadedSection segment; + segment.address() = 0x696d83cc; + segment.Append(10, '0'); + + // The contents of the following sections don't matter, because + // we're not really going to Place them in segment; we're just going + // to set all their labels by hand to get the (impossible) + // configurations we want. + + // A section that extends beyond the end of its section. + LoadedSection too_big; + too_big.Append(10, '3'); + too_big.start() = segment.start() + 1; + too_big.address() = segment.address() + 1; + too_big.final_size() = too_big.Size(); + + SegmentLoadCommand command; + command + .Header("segment", segment, 0x173baa29, 0x8407275d, 0xed8f7057) + .AppendSectionEntry("too big", "segment", 0, 0x8b53ae5c, too_big); + + LoadCommands commands; + commands.Place(&command); + + MachOFile file; + file.Header(&commands).Place(&segment); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + Segment actual_segment; + EXPECT_TRUE(reader.FindSegment("segment", &actual_segment)); + + EXPECT_CALL(reporter, MisplacedSectionData("too big", "segment")) + .WillOnce(Return()); + EXPECT_FALSE(reader.WalkSegmentSections(actual_segment, §ion_handler)); +} + + +// The segments in a .dSYM bundle's Mach-O file have their file offset +// and size set to zero, but the sections don't. The reader shouldn't +// report an error in this case. +TEST_F(LoadCommand, ZappedSegment) { + WithConfiguration config(kBigEndian, 32); + + // The segment. + LoadedSection segment; + segment.address() = 0x696d83cc; + segment.start() = 0; + segment.final_size() = 0; + + // The section. + LoadedSection section; + section.address() = segment.address(); + section.start() = 0; + section.final_size() = 1000; // extends beyond its segment + + SegmentLoadCommand command; + command + .Header("zapped", segment, 0x0861a5cb, 0x68ccff67, 0x0b66255c) + .AppendSectionEntry("twitching", "zapped", 0, 0x93b3bd42, section); + + LoadCommands commands; + commands.Place(&command); + + MachOFile file; + file.Header(&commands); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + Segment actual_segment; + EXPECT_TRUE(reader.FindSegment("zapped", &actual_segment)); + + ByteBuffer zapped_extent(NULL, 0); + EXPECT_CALL(section_handler, + HandleSection(MatchSection(false, "twitching", "zapped", + 0x696d83cc, 0, 0x93b3bd42, + zapped_extent))) + .WillOnce(Return(true)); + + EXPECT_TRUE(reader.WalkSegmentSections(actual_segment, §ion_handler)); +} + +TEST_F(LoadCommand, MapSegmentSections) { + WithConfiguration config(kLittleEndian, 32); + + // Create some sections with some data. + LoadedSection section1, section2, section3, section4; + section1.Append("buddha's hand"); + section2.start() = 0; // Section 2 is an S_ZEROFILL section. + section2.final_size() = 0; + section3.Append("shasta gold"); + section4.Append("satsuma"); + + // Create two segments to hold them. + LoadedSection segment1, segment2; + segment1.address() = 0x13e6c8a9; + segment1.Place(§ion3).Place(§ion1); + segment2.set_word_size(64); + segment2.address() = 0x04d462e2; + segment2.Place(§ion4); + section2.address() = segment2.address() + segment2.Size(); + + SegmentLoadCommand segment_command1, segment_command2; + segment_command1 + .Header("head", segment1, 0x67d955a6, 0x7a61c13e, 0xe3e50c64) + .AppendSectionEntry("mandarin", "head", 12, 0x5bb565d7, section1) + .AppendSectionEntry("bergamot", "head", 12, 0x8620de73, section3); + segment_command2.set_word_size(64); + segment_command2 + .Header("thorax", segment2, 0x7aab2419, 0xe908007f, 0x17961d33) + .AppendSectionEntry("sixteenprecisely", "thorax", + 12, S_ZEROFILL, section2) + .AppendSectionEntry("cara cara", "thorax", 12, 0xb6c5dd8a, section4); + + LoadCommands commands; + commands.Place(&segment_command1).Place(&segment_command2); + + MachOFile file; + file.Header(&commands).Place(&segment1).Place(&segment2); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + Segment segment; + SectionMap section_map; + + EXPECT_FALSE(reader.FindSegment("smoot", &segment)); + + ASSERT_TRUE(reader.FindSegment("thorax", &segment)); + ASSERT_TRUE(reader.MapSegmentSections(segment, §ion_map)); + + EXPECT_FALSE(section_map.find("sixteenpreciselyandthensome") + != section_map.end()); + EXPECT_FALSE(section_map.find("mandarin") != section_map.end()); + ASSERT_TRUE(section_map.find("cara cara") != section_map.end()); + EXPECT_THAT(section_map["cara cara"], + MatchSection(true, "cara cara", "thorax", 0x04d462e2)); + ASSERT_TRUE(section_map.find("sixteenprecisely") + != section_map.end()); + ByteBuffer sixteenprecisely_contents(NULL, 0); + EXPECT_THAT(section_map["sixteenprecisely"], + MatchSection(true, "sixteenprecisely", "thorax", + 0x04d462e2 + 7, 12, S_ZEROFILL, + sixteenprecisely_contents)); + + ASSERT_TRUE(reader.FindSegment("head", &segment)); + ASSERT_TRUE(reader.MapSegmentSections(segment, §ion_map)); + + ASSERT_TRUE(section_map.find("mandarin") != section_map.end()); + EXPECT_THAT(section_map["mandarin"], + MatchSection(false, "mandarin", "head", 0x13e6c8a9 + 11)); + ASSERT_TRUE(section_map.find("bergamot") != section_map.end()); + EXPECT_THAT(section_map["bergamot"], + MatchSection(false, "bergamot", "head", 0x13e6c8a9)); +} + +TEST_F(LoadCommand, FindSegment) { + WithConfiguration config(kBigEndian, 32); + + LoadedSection segment1, segment2, segment3; + segment1.address() = 0xb8ae5752; + segment1.Append("Some contents!"); + segment2.address() = 0xd6b0ce83; + segment2.Append("Different stuff."); + segment3.address() = 0x7374fd2a; + segment3.Append("Further materials."); + + SegmentLoadCommand cmd1, cmd2, cmd3; + cmd1.Header("first", segment1, 0xfadb6932, 0x175bf529, 0x0de790ad); + cmd2.Header("second", segment2, 0xeef716e0, 0xe103a9d7, 0x7d38a8ef); + cmd3.Header("third", segment3, 0xe172b39e, 0x86012f07, 0x080ac94d); + + LoadCommands commands; + commands.Place(&cmd1).Place(&cmd2).Place(&cmd3); + + MachOFile file; + file.Header(&commands).Place(&segment1).Place(&segment2).Place(&segment3); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + Segment actual_segment; + + EXPECT_FALSE(reader.FindSegment("murphy", &actual_segment)); + + EXPECT_TRUE(reader.FindSegment("second", &actual_segment)); + EXPECT_EQ(0xd6b0ce83, actual_segment.vmaddr); +} + + +// Symtab tests. + +// A StringAssembler is a class for generating .stabstr sections to present +// as input to the STABS parser. +class StringAssembler: public SizedSection { + public: + // Add the string S to this StringAssembler, and return the string's + // offset within this compilation unit's strings. + size_t Add(const string &s) { + size_t offset = Size(); + AppendCString(s); + return offset; + } +}; + +// A SymbolAssembler is a class for generating .stab sections to present as +// test input for the STABS parser. +class SymbolAssembler: public SizedSection { + public: + // Create a SymbolAssembler that uses StringAssembler for its strings. + explicit SymbolAssembler(StringAssembler *string_assembler) + : string_assembler_(string_assembler), + entry_count_(0) { } + + // Append a STAB entry to the end of this section with the given + // characteristics. NAME is the offset of this entry's name string within + // its compilation unit's portion of the .stabstr section; this can be a + // value generated by a StringAssembler. Return a reference to this + // SymbolAssembler. + SymbolAssembler &Symbol(uint8_t type, uint8_t other, Label descriptor, + Label value, Label name) { + D32(name); + D8(type); + D8(other); + D16(descriptor); + Append(endianness(), word_size_ / 8, value); + entry_count_++; + return *this; + } + + // As above, but automatically add NAME to our StringAssembler. + SymbolAssembler &Symbol(uint8_t type, uint8_t other, Label descriptor, + Label value, const string &name) { + return Symbol(type, other, descriptor, value, string_assembler_->Add(name)); + } + + private: + // The strings for our STABS entries. + StringAssembler *string_assembler_; + + // The number of entries in this compilation unit so far. + size_t entry_count_; +}; + +class Symtab: public ReaderFixture, public Test { }; + +TEST_F(Symtab, Symtab32) { + WithConfiguration config(kLittleEndian, 32); + + StringAssembler strings; + SymbolAssembler symbols(&strings); + symbols + .Symbol(0x52, 0x7c, 0x3470, 0x9bb02e7c, "hrududu") + .Symbol(0x50, 0x90, 0x7520, 0x1122525d, "Frith"); + + SizedSection symtab_command; + symtab_command + .D32(LC_SYMTAB) // command + .D32(symtab_command.final_size()) // size + .D32(symbols.start()) // file offset of symbols + .D32(2) // symbol count + .D32(strings.start()) // file offset of strings + .D32(strings.final_size()); // strings size + + LoadCommands load_commands; + load_commands.Place(&symtab_command); + + MachOFile file; + file.Header(&load_commands).Place(&symbols).Place(&strings); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + ByteBuffer symbols_found, strings_found; + EXPECT_CALL(load_command_handler, SymtabCommand(_, _)) + .WillOnce(DoAll(SaveArg<0>(&symbols_found), + SaveArg<1>(&strings_found), + Return(true))); + EXPECT_TRUE(reader.WalkLoadCommands(&load_command_handler)); + + EXPECT_EQ(24U, symbols_found.Size()); + EXPECT_EQ(14U, strings_found.Size()); +} + +TEST_F(Symtab, Symtab64) { + WithConfiguration config(kBigEndian, 64); + + StringAssembler strings; + SymbolAssembler symbols(&strings); + symbols + .Symbol(0xa7, 0xaf, 0x03af, 0x42f3072c74335181ULL, "foo") + .Symbol(0xb0, 0x9a, 0x2aa7, 0x2e2d349b3d5744a0ULL, "bar"); + + SizedSection symtab_command; + symtab_command + .D32(LC_SYMTAB) // command + .D32(symtab_command.final_size()) // size + .D32(symbols.start()) // file offset of symbols + .D32(2) // symbol count + .D32(strings.start()) // file offset of strings + .D32(strings.final_size()); // strings size + + LoadCommands load_commands; + load_commands.Place(&symtab_command); + + MachOFile file; + file.Header(&load_commands).Place(&symbols).Place(&strings); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + ByteBuffer symbols_found, strings_found; + EXPECT_CALL(load_command_handler, SymtabCommand(_, _)) + .WillOnce(DoAll(SaveArg<0>(&symbols_found), + SaveArg<1>(&strings_found), + Return(true))); + EXPECT_TRUE(reader.WalkLoadCommands(&load_command_handler)); + + EXPECT_EQ(32U, symbols_found.Size()); + EXPECT_EQ(8U, strings_found.Size()); +} + +TEST_F(Symtab, SymtabMisplacedSymbols) { + WithConfiguration config(kBigEndian, 32); + + StringAssembler strings; + SymbolAssembler symbols(&strings); + symbols + .Symbol(0xa7, 0xaf, 0x03af, 0x42f3072c74335181ULL, "foo") + .Symbol(0xb0, 0x9a, 0x2aa7, 0x2e2d349b3d5744a0ULL, "bar"); + + SizedSection symtab_command; + symtab_command + .D32(LC_SYMTAB) // command + .D32(symtab_command.final_size()) // size + .D32(symbols.start()) // file offset of symbols + .D32(3) // symbol count (too many) + .D32(strings.start()) // file offset of strings + .D32(strings.final_size()); // strings size + + LoadCommands load_commands; + load_commands.Place(&symtab_command); + + MachOFile file; + // Put symbols at end, so the excessive length will be noticed. + file.Header(&load_commands).Place(&strings).Place(&symbols); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + EXPECT_CALL(reporter, MisplacedSymbolTable()).Times(1); + EXPECT_FALSE(reader.WalkLoadCommands(&load_command_handler)); +} + +TEST_F(Symtab, SymtabMisplacedStrings) { + WithConfiguration config(kLittleEndian, 32); + + StringAssembler strings; + SymbolAssembler symbols(&strings); + symbols + .Symbol(0xa7, 0xaf, 0x03af, 0x42f3072c74335181ULL, "foo") + .Symbol(0xb0, 0x9a, 0x2aa7, 0x2e2d349b3d5744a0ULL, "bar"); + + SizedSection symtab_command; + symtab_command + .D32(LC_SYMTAB) // command + .D32(symtab_command.final_size()) // size + .D32(symbols.start()) // file offset of symbols + .D32(2) // symbol count + .D32(strings.start()) // file offset of strings + .D32(strings.final_size() + 1); // strings size (too long) + + LoadCommands load_commands; + load_commands.Place(&symtab_command); + + MachOFile file; + // Put strings at end, so the excessive length will be noticed. + file.Header(&load_commands).Place(&symbols).Place(&strings); + + ReadFile(&file, true, CPU_TYPE_ANY, 0); + + EXPECT_CALL(reporter, MisplacedSymbolTable()).Times(1); + EXPECT_FALSE(reader.WalkLoadCommands(&load_command_handler)); +} + diff --git a/3rdParty/Breakpad/src/common/mac/macho_utilities.cc b/3rdParty/Breakpad/src/common/mac/macho_utilities.cc index 89f9e77..f56fe76 100644 --- a/3rdParty/Breakpad/src/common/mac/macho_utilities.cc +++ b/3rdParty/Breakpad/src/common/mac/macho_utilities.cc @@ -34,16 +34,44 @@ #include "common/mac/byteswap.h" #include "common/mac/macho_utilities.h" -void breakpad_swap_uuid_command(struct breakpad_uuid_command *uc, - enum NXByteOrder target_byte_order) -{ +#include <mach-o/fat.h> +#include <mach-o/loader.h> + +void breakpad_swap_uuid_command(struct breakpad_uuid_command *uc) { uc->cmd = ByteSwap(uc->cmd); uc->cmdsize = ByteSwap(uc->cmdsize); } -void breakpad_swap_segment_command_64(struct segment_command_64 *sg, - enum NXByteOrder target_byte_order) -{ +void breakpad_swap_load_command(struct load_command *lc) { + lc->cmd = ByteSwap(lc->cmd); + lc->cmdsize = ByteSwap(lc->cmdsize); +} + +void breakpad_swap_dylib_command(struct dylib_command *dc) { + dc->cmd = ByteSwap(dc->cmd); + dc->cmdsize = ByteSwap(dc->cmdsize); + + dc->dylib.name.offset = ByteSwap(dc->dylib.name.offset); + dc->dylib.timestamp = ByteSwap(dc->dylib.timestamp); + dc->dylib.current_version = ByteSwap(dc->dylib.current_version); + dc->dylib.compatibility_version = ByteSwap(dc->dylib.compatibility_version); +} + +void breakpad_swap_segment_command(struct segment_command *sc) { + sc->cmd = ByteSwap(sc->cmd); + sc->cmdsize = ByteSwap(sc->cmdsize); + + sc->vmaddr = ByteSwap(sc->vmaddr); + sc->vmsize = ByteSwap(sc->vmsize); + sc->fileoff = ByteSwap(sc->fileoff); + sc->filesize = ByteSwap(sc->filesize); + sc->maxprot = ByteSwap(sc->maxprot); + sc->initprot = ByteSwap(sc->initprot); + sc->nsects = ByteSwap(sc->nsects); + sc->flags = ByteSwap(sc->flags); +} + +void breakpad_swap_segment_command_64(struct segment_command_64 *sg) { sg->cmd = ByteSwap(sg->cmd); sg->cmdsize = ByteSwap(sg->cmdsize); @@ -58,9 +86,32 @@ void breakpad_swap_segment_command_64(struct segment_command_64 *sg, sg->flags = ByteSwap(sg->flags); } -void breakpad_swap_mach_header_64(struct mach_header_64 *mh, - enum NXByteOrder target_byte_order) -{ +void breakpad_swap_fat_header(struct fat_header *fh) { + fh->magic = ByteSwap(fh->magic); + fh->nfat_arch = ByteSwap(fh->nfat_arch); +} + +void breakpad_swap_fat_arch(struct fat_arch *fa, uint32_t narchs) { + for (uint32_t i = 0; i < narchs; ++i) { + fa[i].cputype = ByteSwap(fa[i].cputype); + fa[i].cpusubtype = ByteSwap(fa[i].cpusubtype); + fa[i].offset = ByteSwap(fa[i].offset); + fa[i].size = ByteSwap(fa[i].size); + fa[i].align = ByteSwap(fa[i].align); + } +} + +void breakpad_swap_mach_header(struct mach_header *mh) { + mh->magic = ByteSwap(mh->magic); + mh->cputype = ByteSwap(mh->cputype); + mh->cpusubtype = ByteSwap(mh->cpusubtype); + mh->filetype = ByteSwap(mh->filetype); + mh->ncmds = ByteSwap(mh->ncmds); + mh->sizeofcmds = ByteSwap(mh->sizeofcmds); + mh->flags = ByteSwap(mh->flags); +} + +void breakpad_swap_mach_header_64(struct mach_header_64 *mh) { mh->magic = ByteSwap(mh->magic); mh->cputype = ByteSwap(mh->cputype); mh->cpusubtype = ByteSwap(mh->cpusubtype); @@ -71,10 +122,24 @@ void breakpad_swap_mach_header_64(struct mach_header_64 *mh, mh->reserved = ByteSwap(mh->reserved); } +void breakpad_swap_section(struct section *s, + uint32_t nsects) { + for (uint32_t i = 0; i < nsects; i++) { + s[i].addr = ByteSwap(s[i].addr); + s[i].size = ByteSwap(s[i].size); + + s[i].offset = ByteSwap(s[i].offset); + s[i].align = ByteSwap(s[i].align); + s[i].reloff = ByteSwap(s[i].reloff); + s[i].nreloc = ByteSwap(s[i].nreloc); + s[i].flags = ByteSwap(s[i].flags); + s[i].reserved1 = ByteSwap(s[i].reserved1); + s[i].reserved2 = ByteSwap(s[i].reserved2); + } +} + void breakpad_swap_section_64(struct section_64 *s, - uint32_t nsects, - enum NXByteOrder target_byte_order) -{ + uint32_t nsects) { for (uint32_t i = 0; i < nsects; i++) { s[i].addr = ByteSwap(s[i].addr); s[i].size = ByteSwap(s[i].size); diff --git a/3rdParty/Breakpad/src/common/mac/macho_utilities.h b/3rdParty/Breakpad/src/common/mac/macho_utilities.h index a07945f..00563a7 100644 --- a/3rdParty/Breakpad/src/common/mac/macho_utilities.h +++ b/3rdParty/Breakpad/src/common/mac/macho_utilities.h @@ -54,14 +54,6 @@ # define LC_UUID 0x1b /* the uuid */ #endif -#if TARGET_CPU_X86 -# define BREAKPAD_MACHINE_THREAD_STATE i386_THREAD_STATE -#elif TARGET_CPU_X86_64 -# define BREAKPAD_MACHINE_THREAD_STATE x86_THREAD_STATE64 -#else -# define BREAKPAD_MACHINE_THREAD_STATE MACHINE_THREAD_STATE -#endif - // The uuid_command struct/swap routines were added during the 10.4 series. // Their presence isn't guaranteed. struct breakpad_uuid_command { @@ -70,23 +62,34 @@ struct breakpad_uuid_command { uint8_t uuid[16]; /* the 128-bit uuid */ }; -void breakpad_swap_uuid_command(struct breakpad_uuid_command *uc, - enum NXByteOrder target_byte_order); +void breakpad_swap_uuid_command(struct breakpad_uuid_command *uc); + +void breakpad_swap_load_command(struct load_command *lc); + +void breakpad_swap_dylib_command(struct dylib_command *dc); // Older SDKs defines thread_state_data_t as an int[] instead // of the natural_t[] it should be. typedef natural_t breakpad_thread_state_data_t[THREAD_STATE_MAX]; +void breakpad_swap_segment_command(struct segment_command *sc); + // The 64-bit swap routines were added during the 10.4 series, their // presence isn't guaranteed. -void breakpad_swap_segment_command_64(struct segment_command_64 *sg, - enum NXByteOrder target_byte_order); +void breakpad_swap_segment_command_64(struct segment_command_64 *sg); + +void breakpad_swap_fat_header(struct fat_header *fh); + +void breakpad_swap_fat_arch(struct fat_arch *fa, uint32_t narchs); + +void breakpad_swap_mach_header(struct mach_header *mh); + +void breakpad_swap_mach_header_64(struct mach_header_64 *mh); -void breakpad_swap_mach_header_64(struct mach_header_64 *mh, - enum NXByteOrder target_byte_order); +void breakpad_swap_section(struct section *s, + uint32_t nsects); void breakpad_swap_section_64(struct section_64 *s, - uint32_t nsects, - enum NXByteOrder target_byte_order); + uint32_t nsects); #endif diff --git a/3rdParty/Breakpad/src/common/mac/macho_walker.cc b/3rdParty/Breakpad/src/common/mac/macho_walker.cc index 92da7b1..1acd866 100644 --- a/3rdParty/Breakpad/src/common/mac/macho_walker.cc +++ b/3rdParty/Breakpad/src/common/mac/macho_walker.cc @@ -33,15 +33,13 @@ // // Author: Dan Waylonis -extern "C" { // necessary for Leopard - #include <assert.h> - #include <fcntl.h> - #include <mach-o/arch.h> - #include <mach-o/loader.h> - #include <mach-o/swap.h> - #include <string.h> - #include <unistd.h> -} +#include <assert.h> +#include <fcntl.h> +#include <mach-o/arch.h> +#include <mach-o/fat.h> +#include <mach-o/loader.h> +#include <string.h> +#include <unistd.h> #include "common/mac/byteswap.h" #include "common/mac/macho_walker.h" @@ -51,7 +49,7 @@ namespace MacFileUtilities { MachoWalker::MachoWalker(const char *path, LoadCommandCallback callback, void *context) - : file_(0), + : file_(-1), memory_(NULL), memory_size_(0), callback_(callback), @@ -64,7 +62,7 @@ MachoWalker::MachoWalker(const char *path, LoadCommandCallback callback, MachoWalker::MachoWalker(void *memory, size_t size, LoadCommandCallback callback, void *context) - : file_(0), + : file_(-1), memory_(memory), memory_size_(size), callback_(callback), @@ -79,21 +77,18 @@ MachoWalker::~MachoWalker() { close(file_); } -int MachoWalker::ValidateCPUType(int cpu_type) { - // If the user didn't specify, use the local architecture. +bool MachoWalker::WalkHeader(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype) { + cpu_type_t valid_cpu_type = cpu_type; + cpu_subtype_t valid_cpu_subtype = cpu_subtype; + // if |cpu_type| is 0, use the native cpu type. if (cpu_type == 0) { const NXArchInfo *arch = NXGetLocalArchInfo(); assert(arch); - cpu_type = arch->cputype; + valid_cpu_type = arch->cputype; + valid_cpu_subtype = CPU_SUBTYPE_MULTIPLE; } - - return cpu_type; -} - -bool MachoWalker::WalkHeader(int cpu_type) { - int valid_cpu_type = ValidateCPUType(cpu_type); off_t offset; - if (FindHeader(valid_cpu_type, offset)) { + if (FindHeader(valid_cpu_type, valid_cpu_subtype, offset)) { if (cpu_type & CPU_ARCH_ABI64) return WalkHeader64AtOffset(offset); @@ -111,7 +106,7 @@ bool MachoWalker::ReadBytes(void *buffer, size_t size, off_t offset) { if (offset + size > memory_size_) { if (static_cast<size_t>(offset) >= memory_size_) return false; - size = memory_size_ - offset; + size = memory_size_ - static_cast<size_t>(offset); result = false; } memcpy(buffer, static_cast<char *>(memory_) + offset, size); @@ -131,8 +126,9 @@ bool MachoWalker::CurrentHeader(struct mach_header_64 *header, off_t *offset) { return false; } -bool MachoWalker::FindHeader(int cpu_type, off_t &offset) { - int valid_cpu_type = ValidateCPUType(cpu_type); +bool MachoWalker::FindHeader(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype, + off_t &offset) { // Read the magic bytes that's common amongst all mach-o files uint32_t magic; if (!ReadBytes(&magic, sizeof(magic), 0)) @@ -153,15 +149,18 @@ bool MachoWalker::FindHeader(int cpu_type, off_t &offset) { if (!is_fat) { // If we don't have a fat header, check if the cpu type matches the single // header - cpu_type_t header_cpu_type; - if (!ReadBytes(&header_cpu_type, sizeof(header_cpu_type), offset)) + struct mach_header header; + if (!ReadBytes(&header, sizeof(header), 0)) return false; if (magic == MH_CIGAM || magic == MH_CIGAM_64) - header_cpu_type = ByteSwap(header_cpu_type); + breakpad_swap_mach_header(&header); - if (valid_cpu_type != header_cpu_type) + if (cpu_type != header.cputype || + (cpu_subtype != CPU_SUBTYPE_MULTIPLE && + cpu_subtype != header.cpusubtype)) { return false; + } offset = 0; return true; @@ -173,7 +172,7 @@ bool MachoWalker::FindHeader(int cpu_type, off_t &offset) { return false; if (NXHostByteOrder() != NX_BigEndian) - swap_fat_header(&fat, NXHostByteOrder()); + breakpad_swap_fat_header(&fat); offset += sizeof(fat); @@ -184,9 +183,11 @@ bool MachoWalker::FindHeader(int cpu_type, off_t &offset) { return false; if (NXHostByteOrder() != NX_BigEndian) - swap_fat_arch(&arch, 1, NXHostByteOrder()); + breakpad_swap_fat_arch(&arch, 1); - if (arch.cputype == valid_cpu_type) { + if (arch.cputype == cpu_type && + (cpu_subtype == CPU_SUBTYPE_MULTIPLE || + arch.cpusubtype == cpu_subtype)) { offset = arch.offset; return true; } @@ -205,7 +206,7 @@ bool MachoWalker::WalkHeaderAtOffset(off_t offset) { bool swap = (header.magic == MH_CIGAM); if (swap) - swap_mach_header(&header, NXHostByteOrder()); + breakpad_swap_mach_header(&header); // Copy the data into the mach_header_64 structure. Since the 32-bit and // 64-bit only differ in the last field (reserved), this is safe to do. @@ -231,7 +232,7 @@ bool MachoWalker::WalkHeader64AtOffset(off_t offset) { bool swap = (header.magic == MH_CIGAM_64); if (swap) - breakpad_swap_mach_header_64(&header, NXHostByteOrder()); + breakpad_swap_mach_header_64(&header); current_header_ = &header; current_header_size_ = sizeof(header); @@ -252,7 +253,7 @@ bool MachoWalker::WalkHeaderCore(off_t offset, uint32_t number_of_commands, return false; if (swap) - swap_load_command(&cmd, NXHostByteOrder()); + breakpad_swap_load_command(&cmd); // Call the user callback if (callback_ && !callback_(this, &cmd, offset, swap, callback_context_)) diff --git a/3rdParty/Breakpad/src/common/mac/macho_walker.h b/3rdParty/Breakpad/src/common/mac/macho_walker.h index cee3eb8..dd53581 100644 --- a/3rdParty/Breakpad/src/common/mac/macho_walker.h +++ b/3rdParty/Breakpad/src/common/mac/macho_walker.h @@ -34,6 +34,7 @@ #ifndef COMMON_MAC_MACHO_WALKER_H__ #define COMMON_MAC_MACHO_WALKER_H__ +#include <mach/machine.h> #include <mach-o/loader.h> #include <sys/types.h> @@ -56,16 +57,14 @@ class MachoWalker { void *context); ~MachoWalker(); - // Begin walking the header for |cpu_type|. If |cpu_type| is 0, then the - // native cpu type is used. Otherwise, accepted values are listed in - // /usr/include/mach/machine.h (e.g., CPU_TYPE_X86 or CPU_TYPE_POWERPC). - // Returns false if opening the file failed or if the |cpu_type| is not - // present in the file. - bool WalkHeader(int cpu_type); - - // Locate (if any) the header offset for |cpu_type| and return in |offset|. - // Return true if found, false otherwise. - bool FindHeader(int cpu_type, off_t &offset); + // Begin walking the header for |cpu_type| and |cpu_subtype|. If |cpu_type| + // is 0, then the native cpu type is used. Otherwise, accepted values are + // listed in /usr/include/mach/machine.h (e.g., CPU_TYPE_X86 or + // CPU_TYPE_POWERPC). If |cpu_subtype| is CPU_SUBTYPE_MULTIPLE, the match is + // only done on |cpu_type|. + // Returns false if opening the file failed or if the |cpu_type|/|cpu_subtype| + // is not present in the file. + bool WalkHeader(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype); // Read |size| bytes from the opened file at |offset| into |buffer| bool ReadBytes(void *buffer, size_t size, off_t offset); @@ -74,8 +73,11 @@ class MachoWalker { bool CurrentHeader(struct mach_header_64 *header, off_t *offset); private: - // Validate the |cpu_type| - int ValidateCPUType(int cpu_type); + // Locate (if any) the header offset for |cpu_type| and return in |offset|. + // Return true if found, false otherwise. + bool FindHeader(cpu_type_t cpu_type, + cpu_subtype_t cpu_subtype, + off_t &offset); // Process an individual header starting at |offset| from the start of the // file. Return true if successful, false otherwise. diff --git a/3rdParty/Breakpad/src/common/mac/string_utilities.cc b/3rdParty/Breakpad/src/common/mac/string_utilities.cc index e1f63a9..07c0f42 100644 --- a/3rdParty/Breakpad/src/common/mac/string_utilities.cc +++ b/3rdParty/Breakpad/src/common/mac/string_utilities.cc @@ -27,7 +27,7 @@ // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -#include "processor/scoped_ptr.h" +#include "common/scoped_ptr.h" #include "common/mac/string_utilities.h" namespace MacStringUtils { diff --git a/3rdParty/Breakpad/src/common/mac/super_fat_arch.h b/3rdParty/Breakpad/src/common/mac/super_fat_arch.h new file mode 100644 index 0000000..501c865 --- /dev/null +++ b/3rdParty/Breakpad/src/common/mac/super_fat_arch.h @@ -0,0 +1,88 @@ +// Copyright (c) 2015, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Erik Chen <erikchen@chromium.org> + +// super_fat_arch.h: A class to handle 64-bit object files. Has conversions to +// and from struct fat_arch. + +#ifndef BREAKPAD_COMMON_MAC_SUPER_FAT_ARCH_H_ +#define BREAKPAD_COMMON_MAC_SUPER_FAT_ARCH_H_ + +#include <limits> +#include <mach-o/fat.h> +#include <stdint.h> + +// Similar to struct fat_arch, except size-related parameters support +// 64-bits. +class SuperFatArch { + public: + uint32_t cputype; + uint32_t cpusubtype; + uint64_t offset; + uint64_t size; + uint64_t align; + + SuperFatArch() : + cputype(0), + cpusubtype(0), + offset(0), + size(0), + align(0) { + } + + explicit SuperFatArch(const struct fat_arch &arch) : + cputype(arch.cputype), + cpusubtype(arch.cpusubtype), + offset(arch.offset), + size(arch.size), + align(arch.align) { + } + + // Returns false if the conversion cannot be made. + // If the conversion succeeds, the result is placed in |output_arch|. + bool ConvertToFatArch(struct fat_arch* output_arch) const { + if (offset > std::numeric_limits<uint32_t>::max()) + return false; + if (size > std::numeric_limits<uint32_t>::max()) + return false; + if (align > std::numeric_limits<uint32_t>::max()) + return false; + struct fat_arch arch; + arch.cputype = cputype; + arch.cpusubtype = cpusubtype; + arch.offset = offset; + arch.size = size; + arch.align = align; + *output_arch = arch; + return true; + } +}; + +#endif // BREAKPAD_COMMON_MAC_SUPER_FAT_ARCH_H_ diff --git a/3rdParty/Breakpad/src/common/md5.cc b/3rdParty/Breakpad/src/common/md5.cc index bccf61c..4f1ac8c 100644 --- a/3rdParty/Breakpad/src/common/md5.cc +++ b/3rdParty/Breakpad/src/common/md5.cc @@ -58,7 +58,7 @@ void MD5Init(struct MD5Context *ctx) * Update context to reflect the concatenation of another buffer full * of bytes. */ -void MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len) +void MD5Update(struct MD5Context *ctx, unsigned char const *buf, size_t len) { u32 t; @@ -138,8 +138,8 @@ void MD5Final(unsigned char digest[16], struct MD5Context *ctx) byteReverse(ctx->in, 14); /* Append length in bits and transform */ - ((u32 *) ctx->in)[14] = ctx->bits[0]; - ((u32 *) ctx->in)[15] = ctx->bits[1]; + memcpy(&ctx->in[14], &ctx->bits[0], sizeof(u32)); + memcpy(&ctx->in[15], &ctx->bits[1], sizeof(u32)); MD5Transform(ctx->buf, (u32 *) ctx->in); byteReverse((unsigned char *) ctx->buf, 4); @@ -166,7 +166,7 @@ void MD5Final(unsigned char digest[16], struct MD5Context *ctx) */ static void MD5Transform(u32 buf[4], u32 const in[16]) { - register u32 a, b, c, d; + u32 a, b, c, d; a = buf[0]; b = buf[1]; diff --git a/3rdParty/Breakpad/src/common/md5.h b/3rdParty/Breakpad/src/common/md5.h index e96521e..2ab0ab9 100644 --- a/3rdParty/Breakpad/src/common/md5.h +++ b/3rdParty/Breakpad/src/common/md5.h @@ -18,7 +18,7 @@ struct MD5Context { void MD5Init(struct MD5Context *ctx); -void MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len); +void MD5Update(struct MD5Context *ctx, unsigned char const *buf, size_t len); void MD5Final(unsigned char digest[16], struct MD5Context *ctx); diff --git a/3rdParty/Breakpad/src/common/memory.h b/3rdParty/Breakpad/src/common/memory.h index e90bd52..9158b50 100644 --- a/3rdParty/Breakpad/src/common/memory.h +++ b/3rdParty/Breakpad/src/common/memory.h @@ -35,9 +35,15 @@ #include <unistd.h> #include <sys/mman.h> +#include <memory> +#include <vector> + +#if defined(MEMORY_SANITIZER) +#include <sanitizer/msan_interface.h> +#endif + #ifdef __APPLE__ #define sys_mmap mmap -#define sys_mmap2 mmap #define sys_munmap munmap #define MAP_ANONYMOUS MAP_ANON #else @@ -57,14 +63,15 @@ class PageAllocator { : page_size_(getpagesize()), last_(NULL), current_page_(NULL), - page_offset_(0) { + page_offset_(0), + pages_allocated_(0) { } ~PageAllocator() { FreeAll(); } - void *Alloc(unsigned bytes) { + void *Alloc(size_t bytes) { if (!bytes) return NULL; @@ -79,35 +86,54 @@ class PageAllocator { return ret; } - const unsigned pages = + const size_t pages = (bytes + sizeof(PageHeader) + page_size_ - 1) / page_size_; uint8_t *const ret = GetNPages(pages); if (!ret) return NULL; - page_offset_ = (page_size_ - (page_size_ * pages - (bytes + sizeof(PageHeader)))) % page_size_; + page_offset_ = + (page_size_ - (page_size_ * pages - (bytes + sizeof(PageHeader)))) % + page_size_; current_page_ = page_offset_ ? ret + page_size_ * (pages - 1) : NULL; return ret + sizeof(PageHeader); } + // Checks whether the page allocator owns the passed-in pointer. + // This method exists for testing pursposes only. + bool OwnsPointer(const void* p) { + for (PageHeader* header = last_; header; header = header->next) { + const char* current = reinterpret_cast<char*>(header); + if ((p >= current) && (p < current + header->num_pages * page_size_)) + return true; + } + + return false; + } + + unsigned long pages_allocated() { return pages_allocated_; } + private: - uint8_t *GetNPages(unsigned num_pages) { -#ifdef __x86_64 + uint8_t *GetNPages(size_t num_pages) { void *a = sys_mmap(NULL, page_size_ * num_pages, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); -#else - void *a = sys_mmap2(NULL, page_size_ * num_pages, PROT_READ | PROT_WRITE, - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); -#endif if (a == MAP_FAILED) return NULL; +#if defined(MEMORY_SANITIZER) + // We need to indicate to MSan that memory allocated through sys_mmap is + // initialized, since linux_syscall_support.h doesn't have MSan hooks. + __msan_unpoison(a, page_size_ * num_pages); +#endif + struct PageHeader *header = reinterpret_cast<PageHeader*>(a); header->next = last_; header->num_pages = num_pages; last_ = header; + pages_allocated_ += num_pages; + return reinterpret_cast<uint8_t*>(a); } @@ -122,97 +148,102 @@ class PageAllocator { struct PageHeader { PageHeader *next; // pointer to the start of the next set of pages. - unsigned num_pages; // the number of pages in this set. + size_t num_pages; // the number of pages in this set. }; - const unsigned page_size_; + const size_t page_size_; PageHeader *last_; uint8_t *current_page_; - unsigned page_offset_; + size_t page_offset_; + unsigned long pages_allocated_; }; -// A wasteful vector is like a normal std::vector, except that it's very much -// simplier and it allocates memory from a PageAllocator. It's wasteful -// because, when resizing, it always allocates a whole new array since the -// PageAllocator doesn't support realloc. -template<class T> -class wasteful_vector { - public: - wasteful_vector(PageAllocator *allocator, unsigned size_hint = 16) - : allocator_(allocator), - a_((T*) allocator->Alloc(sizeof(T) * size_hint)), - allocated_(size_hint), - used_(0) { - } - - T& back() { - return a_[used_ - 1]; - } - - const T& back() const { - return a_[used_ - 1]; - } - - bool empty() const { - return used_ == 0; - } - - void push_back(const T& new_element) { - if (used_ == allocated_) - Realloc(allocated_ * 2); - a_[used_++] = new_element; - } - - size_t size() const { - return used_; - } - - void resize(unsigned sz, T c = T()) { - // No need to test "sz >= 0", as "sz" is unsigned. - if (sz <= used_) { - used_ = sz; - } else { - unsigned a = allocated_; - if (sz > a) { - while (sz > a) { - a *= 2; - } - Realloc(a); - } - while (sz > used_) { - a_[used_++] = c; - } +// Wrapper to use with STL containers +template <typename T> +struct PageStdAllocator : public std::allocator<T> { + typedef typename std::allocator<T>::pointer pointer; + typedef typename std::allocator<T>::size_type size_type; + + explicit PageStdAllocator(PageAllocator& allocator) : allocator_(allocator), + stackdata_(NULL), + stackdata_size_(0) + {} + + template <class Other> PageStdAllocator(const PageStdAllocator<Other>& other) + : allocator_(other.allocator_), + stackdata_(nullptr), + stackdata_size_(0) + {} + + explicit PageStdAllocator(PageAllocator& allocator, + pointer stackdata, + size_type stackdata_size) : allocator_(allocator), + stackdata_(stackdata), + stackdata_size_(stackdata_size) + {} + + inline pointer allocate(size_type n, const void* = 0) { + const size_type size = sizeof(T) * n; + if (size <= stackdata_size_) { + return stackdata_; } + return static_cast<pointer>(allocator_.Alloc(size)); } - T& operator[](size_t index) { - return a_[index]; + inline void deallocate(pointer, size_type) { + // The PageAllocator doesn't free. } - const T& operator[](size_t index) const { - return a_[index]; - } + template <typename U> struct rebind { + typedef PageStdAllocator<U> other; + }; private: - void Realloc(unsigned new_size) { - T *new_array = - reinterpret_cast<T*>(allocator_->Alloc(sizeof(T) * new_size)); - memcpy(new_array, a_, used_ * sizeof(T)); - a_ = new_array; - allocated_ = new_size; + // Silly workaround for the gcc from Android's ndk (gcc 4.6), which will + // otherwise complain that `other.allocator_` is private in the constructor + // code. + template<typename Other> friend struct PageStdAllocator; + + PageAllocator& allocator_; + pointer stackdata_; + size_type stackdata_size_; +}; + +// A wasteful vector is a std::vector, except that it allocates memory from a +// PageAllocator. It's wasteful because, when resizing, it always allocates a +// whole new array since the PageAllocator doesn't support realloc. +template<class T> +class wasteful_vector : public std::vector<T, PageStdAllocator<T> > { + public: + wasteful_vector(PageAllocator* allocator, unsigned size_hint = 16) + : std::vector<T, PageStdAllocator<T> >(PageStdAllocator<T>(*allocator)) { + std::vector<T, PageStdAllocator<T> >::reserve(size_hint); } + protected: + wasteful_vector(PageStdAllocator<T> allocator) + : std::vector<T, PageStdAllocator<T> >(allocator) {} +}; - PageAllocator *const allocator_; - T *a_; // pointer to an array of |allocated_| elements. - unsigned allocated_; // size of |a_|, in elements. - unsigned used_; // number of used slots in |a_|. +// auto_wasteful_vector allocates space on the stack for N entries to avoid +// using the PageAllocator for small data, while still allowing for larger data. +template<class T, unsigned int N> +class auto_wasteful_vector : public wasteful_vector<T> { + T stackdata_[N]; + public: + auto_wasteful_vector(PageAllocator* allocator) + : wasteful_vector<T>( + PageStdAllocator<T>(*allocator, + &stackdata_[0], + sizeof(stackdata_))) { + std::vector<T, PageStdAllocator<T> >::reserve(N); + } }; } // namespace google_breakpad inline void* operator new(size_t nbytes, google_breakpad::PageAllocator& allocator) { - return allocator.Alloc(nbytes); + return allocator.Alloc(nbytes); } #endif // GOOGLE_BREAKPAD_COMMON_MEMORY_H_ diff --git a/3rdParty/Breakpad/src/common/memory_range.h b/3rdParty/Breakpad/src/common/memory_range.h new file mode 100644 index 0000000..41dd2da --- /dev/null +++ b/3rdParty/Breakpad/src/common/memory_range.h @@ -0,0 +1,145 @@ +// Copyright (c) 2011, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// memory_range.h: Define the google_breakpad::MemoryRange class, which +// is a lightweight wrapper with a pointer and a length to encapsulate +// a contiguous range of memory. + +#ifndef COMMON_MEMORY_RANGE_H_ +#define COMMON_MEMORY_RANGE_H_ + +#include <stddef.h> + +#include "google_breakpad/common/breakpad_types.h" + +namespace google_breakpad { + +// A lightweight wrapper with a pointer and a length to encapsulate a +// contiguous range of memory. It provides helper methods for checked +// access of a subrange of the memory. Its implemementation does not +// allocate memory or call into libc functions, and is thus safer to use +// in a crashed environment. +class MemoryRange { + public: + MemoryRange() : data_(NULL), length_(0) {} + + MemoryRange(const void* data, size_t length) { + Set(data, length); + } + + // Returns true if this memory range contains no data. + bool IsEmpty() const { + // Set() guarantees that |length_| is zero if |data_| is NULL. + return length_ == 0; + } + + // Resets to an empty range. + void Reset() { + data_ = NULL; + length_ = 0; + } + + // Sets this memory range to point to |data| and its length to |length|. + void Set(const void* data, size_t length) { + data_ = reinterpret_cast<const uint8_t*>(data); + // Always set |length_| to zero if |data_| is NULL. + length_ = data ? length : 0; + } + + // Returns true if this range covers a subrange of |sub_length| bytes + // at |sub_offset| bytes of this memory range, or false otherwise. + bool Covers(size_t sub_offset, size_t sub_length) const { + // The following checks verify that: + // 1. sub_offset is within [ 0 .. length_ - 1 ] + // 2. sub_offset + sub_length is within + // [ sub_offset .. length_ ] + return sub_offset < length_ && + sub_offset + sub_length >= sub_offset && + sub_offset + sub_length <= length_; + } + + // Returns a raw data pointer to a subrange of |sub_length| bytes at + // |sub_offset| bytes of this memory range, or NULL if the subrange + // is out of bounds. + const void* GetData(size_t sub_offset, size_t sub_length) const { + return Covers(sub_offset, sub_length) ? (data_ + sub_offset) : NULL; + } + + // Same as the two-argument version of GetData() but uses sizeof(DataType) + // as the subrange length and returns an |DataType| pointer for convenience. + template <typename DataType> + const DataType* GetData(size_t sub_offset) const { + return reinterpret_cast<const DataType*>( + GetData(sub_offset, sizeof(DataType))); + } + + // Returns a raw pointer to the |element_index|-th element of an array + // of elements of length |element_size| starting at |sub_offset| bytes + // of this memory range, or NULL if the element is out of bounds. + const void* GetArrayElement(size_t element_offset, + size_t element_size, + unsigned element_index) const { + size_t sub_offset = element_offset + element_index * element_size; + return GetData(sub_offset, element_size); + } + + // Same as the three-argument version of GetArrayElement() but deduces + // the element size using sizeof(ElementType) and returns an |ElementType| + // pointer for convenience. + template <typename ElementType> + const ElementType* GetArrayElement(size_t element_offset, + unsigned element_index) const { + return reinterpret_cast<const ElementType*>( + GetArrayElement(element_offset, sizeof(ElementType), element_index)); + } + + // Returns a subrange of |sub_length| bytes at |sub_offset| bytes of + // this memory range, or an empty range if the subrange is out of bounds. + MemoryRange Subrange(size_t sub_offset, size_t sub_length) const { + return Covers(sub_offset, sub_length) ? + MemoryRange(data_ + sub_offset, sub_length) : MemoryRange(); + } + + // Returns a pointer to the beginning of this memory range. + const uint8_t* data() const { return data_; } + + // Returns the length, in bytes, of this memory range. + size_t length() const { return length_; } + + private: + // Pointer to the beginning of this memory range. + const uint8_t* data_; + + // Length, in bytes, of this memory range. + size_t length_; +}; + +} // namespace google_breakpad + +#endif // COMMON_MEMORY_RANGE_H_ diff --git a/3rdParty/Breakpad/src/common/memory_range_unittest.cc b/3rdParty/Breakpad/src/common/memory_range_unittest.cc new file mode 100644 index 0000000..f6cf8c8 --- /dev/null +++ b/3rdParty/Breakpad/src/common/memory_range_unittest.cc @@ -0,0 +1,193 @@ +// Copyright (c) 2011, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// memory_range_unittest.cc: Unit tests for google_breakpad::MemoryRange. + +#include "breakpad_googletest_includes.h" +#include "common/memory_range.h" + +using google_breakpad::MemoryRange; +using testing::Message; + +namespace { + +const uint32_t kBuffer[10] = { 0 }; +const size_t kBufferSize = sizeof(kBuffer); +const uint8_t* kBufferPointer = reinterpret_cast<const uint8_t*>(kBuffer); + +// Test vectors for verifying Covers, GetData, and Subrange. +const struct { + bool valid; + size_t offset; + size_t length; +} kSubranges[] = { + { true, 0, 0 }, + { true, 0, 2 }, + { true, 0, kBufferSize }, + { true, 2, 0 }, + { true, 2, 4 }, + { true, 2, kBufferSize - 2 }, + { true, kBufferSize - 1, 1 }, + { false, kBufferSize, 0 }, + { false, kBufferSize, static_cast<size_t>(-1) }, + { false, kBufferSize + 1, 0 }, + { false, static_cast<size_t>(-1), 2 }, + { false, 1, kBufferSize }, + { false, kBufferSize - 1, 2 }, + { false, 0, static_cast<size_t>(-1) }, + { false, 1, static_cast<size_t>(-1) }, +}; +const size_t kNumSubranges = sizeof(kSubranges) / sizeof(kSubranges[0]); + +// Test vectors for verifying GetArrayElement. +const struct { + size_t offset; + size_t size; + size_t index; + const void* const pointer; +} kElements[] = { + // Valid array elemenets + { 0, 1, 0, kBufferPointer }, + { 0, 1, 1, kBufferPointer + 1 }, + { 0, 1, kBufferSize - 1, kBufferPointer + kBufferSize - 1 }, + { 0, 2, 1, kBufferPointer + 2 }, + { 0, 4, 2, kBufferPointer + 8 }, + { 0, 4, 9, kBufferPointer + 36 }, + { kBufferSize - 1, 1, 0, kBufferPointer + kBufferSize - 1 }, + // Invalid array elemenets + { 0, 1, kBufferSize, NULL }, + { 0, 4, 10, NULL }, + { kBufferSize - 1, 1, 1, NULL }, + { kBufferSize - 1, 2, 0, NULL }, + { kBufferSize, 1, 0, NULL }, +}; +const size_t kNumElements = sizeof(kElements) / sizeof(kElements[0]); + +} // namespace + +TEST(MemoryRangeTest, DefaultConstructor) { + MemoryRange range; + EXPECT_EQ(NULL, range.data()); + EXPECT_EQ(0U, range.length()); +} + +TEST(MemoryRangeTest, ConstructorWithDataAndLength) { + MemoryRange range(kBuffer, kBufferSize); + EXPECT_EQ(kBufferPointer, range.data()); + EXPECT_EQ(kBufferSize, range.length()); +} + +TEST(MemoryRangeTest, Reset) { + MemoryRange range; + range.Reset(); + EXPECT_EQ(NULL, range.data()); + EXPECT_EQ(0U, range.length()); + + range.Set(kBuffer, kBufferSize); + EXPECT_EQ(kBufferPointer, range.data()); + EXPECT_EQ(kBufferSize, range.length()); + + range.Reset(); + EXPECT_EQ(NULL, range.data()); + EXPECT_EQ(0U, range.length()); +} + +TEST(MemoryRangeTest, Set) { + MemoryRange range; + range.Set(kBuffer, kBufferSize); + EXPECT_EQ(kBufferPointer, range.data()); + EXPECT_EQ(kBufferSize, range.length()); + + range.Set(NULL, 0); + EXPECT_EQ(NULL, range.data()); + EXPECT_EQ(0U, range.length()); +} + +TEST(MemoryRangeTest, SubrangeOfEmptyMemoryRange) { + MemoryRange range; + MemoryRange subrange = range.Subrange(0, 10); + EXPECT_EQ(NULL, subrange.data()); + EXPECT_EQ(0U, subrange.length()); +} + +TEST(MemoryRangeTest, SubrangeAndGetData) { + MemoryRange range(kBuffer, kBufferSize); + for (size_t i = 0; i < kNumSubranges; ++i) { + bool valid = kSubranges[i].valid; + size_t sub_offset = kSubranges[i].offset; + size_t sub_length = kSubranges[i].length; + SCOPED_TRACE(Message() << "offset=" << sub_offset + << ", length=" << sub_length); + + MemoryRange subrange = range.Subrange(sub_offset, sub_length); + if (valid) { + EXPECT_TRUE(range.Covers(sub_offset, sub_length)); + EXPECT_EQ(kBufferPointer + sub_offset, + range.GetData(sub_offset, sub_length)); + EXPECT_EQ(kBufferPointer + sub_offset, subrange.data()); + EXPECT_EQ(sub_length, subrange.length()); + } else { + EXPECT_FALSE(range.Covers(sub_offset, sub_length)); + EXPECT_EQ(NULL, range.GetData(sub_offset, sub_length)); + EXPECT_EQ(NULL, subrange.data()); + EXPECT_EQ(0U, subrange.length()); + } + } +} + +TEST(MemoryRangeTest, GetDataWithTemplateType) { + MemoryRange range(kBuffer, kBufferSize); + const char* char_pointer = range.GetData<char>(0); + EXPECT_EQ(reinterpret_cast<const char*>(kBufferPointer), char_pointer); + const int* int_pointer = range.GetData<int>(0); + EXPECT_EQ(reinterpret_cast<const int*>(kBufferPointer), int_pointer); +} + +TEST(MemoryRangeTest, GetArrayElement) { + MemoryRange range(kBuffer, kBufferSize); + for (size_t i = 0; i < kNumElements; ++i) { + size_t element_offset = kElements[i].offset; + size_t element_size = kElements[i].size; + unsigned element_index = kElements[i].index; + const void* const element_pointer = kElements[i].pointer; + SCOPED_TRACE(Message() << "offset=" << element_offset + << ", size=" << element_size + << ", index=" << element_index); + EXPECT_EQ(element_pointer, range.GetArrayElement( + element_offset, element_size, element_index)); + } +} + +TEST(MemoryRangeTest, GetArrayElmentWithTemplateType) { + MemoryRange range(kBuffer, kBufferSize); + const char* char_pointer = range.GetArrayElement<char>(0, 0); + EXPECT_EQ(reinterpret_cast<const char*>(kBufferPointer), char_pointer); + const int* int_pointer = range.GetArrayElement<int>(0, 0); + EXPECT_EQ(reinterpret_cast<const int*>(kBufferPointer), int_pointer); +} diff --git a/3rdParty/Breakpad/src/common/memory_unittest.cc b/3rdParty/Breakpad/src/common/memory_unittest.cc new file mode 100644 index 0000000..8d2494c --- /dev/null +++ b/3rdParty/Breakpad/src/common/memory_unittest.cc @@ -0,0 +1,124 @@ +// Copyright (c) 2009, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "breakpad_googletest_includes.h" +#include "common/memory.h" + +using namespace google_breakpad; + +namespace { +typedef testing::Test PageAllocatorTest; +} + +TEST(PageAllocatorTest, Setup) { + PageAllocator allocator; + EXPECT_EQ(0U, allocator.pages_allocated()); +} + +TEST(PageAllocatorTest, SmallObjects) { + PageAllocator allocator; + + EXPECT_EQ(0U, allocator.pages_allocated()); + for (unsigned i = 1; i < 1024; ++i) { + uint8_t *p = reinterpret_cast<uint8_t*>(allocator.Alloc(i)); + ASSERT_FALSE(p == NULL); + memset(p, 0, i); + } +} + +TEST(PageAllocatorTest, LargeObject) { + PageAllocator allocator; + + EXPECT_EQ(0U, allocator.pages_allocated()); + uint8_t *p = reinterpret_cast<uint8_t*>(allocator.Alloc(10000)); + ASSERT_FALSE(p == NULL); + EXPECT_EQ(3U, allocator.pages_allocated()); + for (unsigned i = 1; i < 10; ++i) { + uint8_t *p = reinterpret_cast<uint8_t*>(allocator.Alloc(i)); + ASSERT_FALSE(p == NULL); + memset(p, 0, i); + } +} + +namespace { +typedef testing::Test WastefulVectorTest; +} + +TEST(WastefulVectorTest, Setup) { + PageAllocator allocator_; + wasteful_vector<int> v(&allocator_); + ASSERT_TRUE(v.empty()); + ASSERT_EQ(v.size(), 0u); +} + +TEST(WastefulVectorTest, Simple) { + PageAllocator allocator_; + EXPECT_EQ(0U, allocator_.pages_allocated()); + wasteful_vector<unsigned> v(&allocator_); + + for (unsigned i = 0; i < 256; ++i) { + v.push_back(i); + ASSERT_EQ(i, v.back()); + ASSERT_EQ(&v.back(), &v[i]); + } + ASSERT_FALSE(v.empty()); + ASSERT_EQ(v.size(), 256u); + EXPECT_EQ(1U, allocator_.pages_allocated()); + for (unsigned i = 0; i < 256; ++i) + ASSERT_EQ(v[i], i); +} + +TEST(WastefulVectorTest, UsesPageAllocator) { + PageAllocator allocator_; + wasteful_vector<unsigned> v(&allocator_); + EXPECT_EQ(1U, allocator_.pages_allocated()); + + v.push_back(1); + ASSERT_TRUE(allocator_.OwnsPointer(&v[0])); +} + +TEST(WastefulVectorTest, AutoWastefulVector) { + PageAllocator allocator_; + EXPECT_EQ(0U, allocator_.pages_allocated()); + + auto_wasteful_vector<unsigned, 4> v(&allocator_); + EXPECT_EQ(0U, allocator_.pages_allocated()); + + v.push_back(1); + EXPECT_EQ(0U, allocator_.pages_allocated()); + EXPECT_FALSE(allocator_.OwnsPointer(&v[0])); + + v.resize(4); + EXPECT_EQ(0U, allocator_.pages_allocated()); + EXPECT_FALSE(allocator_.OwnsPointer(&v[0])); + + v.resize(10); + EXPECT_EQ(1U, allocator_.pages_allocated()); + EXPECT_TRUE(allocator_.OwnsPointer(&v[0])); +} diff --git a/3rdParty/Breakpad/src/common/minidump_type_helper.h b/3rdParty/Breakpad/src/common/minidump_type_helper.h new file mode 100644 index 0000000..5a7d5a6 --- /dev/null +++ b/3rdParty/Breakpad/src/common/minidump_type_helper.h @@ -0,0 +1,56 @@ +// Copyright (c) 2014, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_TYPE_HELPER_H_ +#define GOOGLE_BREAKPAD_COMMON_MINIDUMP_TYPE_HELPER_H_ + +#include <stdint.h> + +#include "google_breakpad/common/minidump_format.h" + +namespace google_breakpad { + +template <size_t> +struct MDTypeHelper; + +template <> +struct MDTypeHelper<sizeof(uint32_t)> { + typedef MDRawDebug32 MDRawDebug; + typedef MDRawLinkMap32 MDRawLinkMap; +}; + +template <> +struct MDTypeHelper<sizeof(uint64_t)> { + typedef MDRawDebug64 MDRawDebug; + typedef MDRawLinkMap64 MDRawLinkMap; +}; + +} // namespace google_breakpad + +#endif // GOOGLE_BREAKPAD_COMMON_MINIDUMP_TYPE_HELPER_H_ diff --git a/3rdParty/Breakpad/src/common/module.cc b/3rdParty/Breakpad/src/common/module.cc index 4e257d1..b5fcb62 100644 --- a/3rdParty/Breakpad/src/common/module.cc +++ b/3rdParty/Breakpad/src/common/module.cc @@ -49,11 +49,13 @@ using std::hex; Module::Module(const string &name, const string &os, - const string &architecture, const string &id) : + const string &architecture, const string &id, + const string &code_id /* = "" */) : name_(name), os_(os), architecture_(architecture), id_(id), + code_id_(code_id), load_address_(0) { } Module::~Module() { @@ -79,8 +81,34 @@ void Module::AddFunction(Function *function) { // FUNC lines must not hold an empty name, so catch the problem early if // callers try to add one. assert(!function->name.empty()); + + // FUNCs are better than PUBLICs as they come with sizes, so remove an extern + // with the same address if present. + Extern ext(function->address); + ExternSet::iterator it_ext = externs_.find(&ext); + if (it_ext == externs_.end() && + architecture_ == "arm" && + (function->address & 0x1) == 0) { + // ARM THUMB functions have bit 0 set. ARM64 does not have THUMB. + Extern arm_thumb_ext(function->address | 0x1); + it_ext = externs_.find(&arm_thumb_ext); + } + if (it_ext != externs_.end()) { + delete *it_ext; + externs_.erase(it_ext); + } +#if _DEBUG + { + // There should be no other PUBLIC symbols that overlap with the function. + Extern debug_ext(function->address); + ExternSet::iterator it_debug = externs_.lower_bound(&ext); + assert(it_debug == externs_.end() || + (*it_debug)->address >= function->address + function->size); + } +#endif + std::pair<FunctionSet::iterator,bool> ret = functions_.insert(function); - if (!ret.second) { + if (!ret.second && (*ret.first != function)) { // Free the duplicate that was not inserted because this Module // now owns it. delete function; @@ -130,8 +158,7 @@ Module::File *Module::FindFile(const string &name) { FileByNameMap::iterator destiny = files_.lower_bound(&name); if (destiny == files_.end() || *destiny->first != name) { // Repeated string comparison, boo hoo. - File *file = new File; - file->name = name; + File *file = new File(name); file->source_id = -1; destiny = files_.insert(destiny, FileByNameMap::value_type(&file->name, file)); @@ -155,7 +182,7 @@ void Module::GetFiles(vector<File *> *vec) { vec->push_back(it->second); } -void Module::GetStackFrameEntries(vector<StackFrameEntry *> *vec) { +void Module::GetStackFrameEntries(vector<StackFrameEntry *> *vec) const { *vec = stack_frame_entries_; } @@ -204,62 +231,66 @@ bool Module::WriteRuleMap(const RuleMap &rule_map, std::ostream &stream) { return stream.good(); } -bool Module::Write(std::ostream &stream, bool cfi) { +bool Module::Write(std::ostream &stream, SymbolData symbol_data) { stream << "MODULE " << os_ << " " << architecture_ << " " << id_ << " " << name_ << endl; if (!stream.good()) return ReportError(); - AssignSourceIds(); + if (!code_id_.empty()) { + stream << "INFO CODE_ID " << code_id_ << endl; + } - // Write out files. - for (FileByNameMap::iterator file_it = files_.begin(); - file_it != files_.end(); ++file_it) { - File *file = file_it->second; - if (file->source_id >= 0) { - stream << "FILE " << file->source_id << " " << file->name << endl; - if (!stream.good()) - return ReportError(); + if (symbol_data != ONLY_CFI) { + AssignSourceIds(); + + // Write out files. + for (FileByNameMap::iterator file_it = files_.begin(); + file_it != files_.end(); ++file_it) { + File *file = file_it->second; + if (file->source_id >= 0) { + stream << "FILE " << file->source_id << " " << file->name << endl; + if (!stream.good()) + return ReportError(); + } } - } - // Write out functions and their lines. - for (FunctionSet::const_iterator func_it = functions_.begin(); - func_it != functions_.end(); ++func_it) { - Function *func = *func_it; - stream << "FUNC " << hex - << (func->address - load_address_) << " " - << func->size << " " - << func->parameter_size << " " - << func->name << dec << endl; - - if (!stream.good()) - return ReportError(); - for (vector<Line>::iterator line_it = func->lines.begin(); - line_it != func->lines.end(); ++line_it) { - stream << hex - << (line_it->address - load_address_) << " " - << line_it->size << " " - << dec - << line_it->number << " " - << line_it->file->source_id << endl; + // Write out functions and their lines. + for (FunctionSet::const_iterator func_it = functions_.begin(); + func_it != functions_.end(); ++func_it) { + Function *func = *func_it; + stream << "FUNC " << hex + << (func->address - load_address_) << " " + << func->size << " " + << func->parameter_size << " " + << func->name << dec << endl; if (!stream.good()) return ReportError(); + + for (vector<Line>::iterator line_it = func->lines.begin(); + line_it != func->lines.end(); ++line_it) { + stream << hex + << (line_it->address - load_address_) << " " + << line_it->size << " " + << dec + << line_it->number << " " + << line_it->file->source_id << endl; + if (!stream.good()) + return ReportError(); + } } - } - // Write out 'PUBLIC' records. - for (ExternSet::const_iterator extern_it = externs_.begin(); - extern_it != externs_.end(); ++extern_it) { - Extern *ext = *extern_it; - stream << "PUBLIC " << hex - << (ext->address - load_address_) << " 0 " - << ext->name << dec << endl; - if (!stream.good()) - return ReportError(); + // Write out 'PUBLIC' records. + for (ExternSet::const_iterator extern_it = externs_.begin(); + extern_it != externs_.end(); ++extern_it) { + Extern *ext = *extern_it; + stream << "PUBLIC " << hex + << (ext->address - load_address_) << " 0 " + << ext->name << dec << endl; + } } - if (cfi) { + if (symbol_data != NO_CFI) { // Write out 'STACK CFI INIT' and 'STACK CFI' records. vector<StackFrameEntry *>::const_iterator frame_it; for (frame_it = stack_frame_entries_.begin(); diff --git a/3rdParty/Breakpad/src/common/module.h b/3rdParty/Breakpad/src/common/module.h index cc89bba..6c2bb27 100644 --- a/3rdParty/Breakpad/src/common/module.h +++ b/3rdParty/Breakpad/src/common/module.h @@ -44,6 +44,7 @@ #include <string> #include <vector> +#include "common/symbol_data.h" #include "common/using_std_string.h" #include "google_breakpad/common/breakpad_types.h" @@ -60,7 +61,7 @@ using std::map; class Module { public: // The type of addresses and sizes in a symbol table. - typedef u_int64_t Address; + typedef uint64_t Address; struct File; struct Function; struct Line; @@ -73,8 +74,10 @@ class Module { // A source file. struct File { + explicit File(const string &name_input) : name(name_input), source_id(0) {} + // The name of the source file. - string name; + const string name; // The file's source id. The Write member function clears this // field and assigns source ids a fresh, so any value placed here @@ -84,6 +87,9 @@ class Module { // A function. struct Function { + Function(const string &name_input, const Address &address_input) : + name(name_input), address(address_input), size(0), parameter_size(0) {} + // For sorting by address. (Not style-guide compliant, but it's // stupid not to put this in the struct.) static bool CompareByAddress(const Function *x, const Function *y) { @@ -91,10 +97,11 @@ class Module { } // The function's name. - string name; + const string name; // The start address and length of the function's code. - Address address, size; + const Address address; + Address size; // The function's parameter size. Address parameter_size; @@ -119,7 +126,8 @@ class Module { // An exported symbol. struct Extern { - Address address; + explicit Extern(const Address &address_input) : address(address_input) {} + const Address address; string name; }; @@ -171,7 +179,7 @@ class Module { // Create a new module with the given name, operating system, // architecture, and ID string. Module(const string &name, const string &os, const string &architecture, - const string &id); + const string &id, const string &code_id = ""); ~Module(); // Set the module's load address to LOAD_ADDRESS; addresses given @@ -246,7 +254,7 @@ class Module { // effectively a copy of the stack frame entry list, this is mostly // useful for testing; other uses should probably get // a more appropriate interface.) - void GetStackFrameEntries(vector<StackFrameEntry *> *vec); + void GetStackFrameEntries(vector<StackFrameEntry *> *vec) const; // Find those files in this module that are actually referred to by // functions' line number data, and assign them source id numbers. @@ -259,13 +267,21 @@ class Module { // breakpad symbol format. Return true if all goes well, or false if // an error occurs. This method writes out: // - a header based on the values given to the constructor, + // If symbol_data is not ONLY_CFI then: // - the source files added via FindFile, // - the functions added via AddFunctions, each with its lines, // - all public records, - // - and if CFI is true, all CFI records. + // If symbol_data is not NO_CFI then: + // - all CFI records. // Addresses in the output are all relative to the load address // established by SetLoadAddress. - bool Write(std::ostream &stream, bool cfi); + bool Write(std::ostream &stream, SymbolData symbol_data); + + string name() const { return name_; } + string os() const { return os_; } + string architecture() const { return architecture_; } + string identifier() const { return id_; } + string code_identifier() const { return code_id_; } private: // Report an error that has occurred writing the symbol file, using @@ -278,7 +294,7 @@ class Module { static bool WriteRuleMap(const RuleMap &rule_map, std::ostream &stream); // Module header entries. - string name_, os_, architecture_, id_; + string name_, os_, architecture_, id_, code_id_; // The module's nominal load address. Addresses for functions and // lines are absolute, assuming the module is loaded at this @@ -288,7 +304,7 @@ class Module { // Relation for maps whose keys are strings shared with some other // structure. struct CompareStringPtrs { - bool operator()(const string *x, const string *y) { return *x < *y; } + bool operator()(const string *x, const string *y) const { return *x < *y; } }; // A map from filenames to File structures. The map's keys are diff --git a/3rdParty/Breakpad/src/common/module_unittest.cc b/3rdParty/Breakpad/src/common/module_unittest.cc new file mode 100644 index 0000000..78406e3 --- /dev/null +++ b/3rdParty/Breakpad/src/common/module_unittest.cc @@ -0,0 +1,557 @@ +// Copyright (c) 2010 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// module_unittest.cc: Unit tests for google_breakpad::Module. + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <algorithm> +#include <sstream> +#include <string> + +#include "breakpad_googletest_includes.h" +#include "common/module.h" +#include "common/using_std_string.h" + +using google_breakpad::Module; +using std::stringstream; +using std::vector; +using testing::ContainerEq; + +static Module::Function *generate_duplicate_function(const string &name) { + const Module::Address DUP_ADDRESS = 0xd35402aac7a7ad5cLL; + const Module::Address DUP_SIZE = 0x200b26e605f99071LL; + const Module::Address DUP_PARAMETER_SIZE = 0xf14ac4fed48c4a99LL; + + Module::Function *function = new Module::Function(name, DUP_ADDRESS); + function->size = DUP_SIZE; + function->parameter_size = DUP_PARAMETER_SIZE; + return function; +} + +#define MODULE_NAME "name with spaces" +#define MODULE_OS "os-name" +#define MODULE_ARCH "architecture" +#define MODULE_ID "id-string" +#define MODULE_CODE_ID "code-id-string" + +TEST(Write, Header) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + EXPECT_STREQ("MODULE os-name architecture id-string name with spaces\n", + contents.c_str()); +} + +TEST(Write, HeaderCodeId) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID, MODULE_CODE_ID); + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + EXPECT_STREQ("MODULE os-name architecture id-string name with spaces\n" + "INFO CODE_ID code-id-string\n", + contents.c_str()); +} + +TEST(Write, OneLineFunc) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + + Module::File *file = m.FindFile("file_name.cc"); + Module::Function *function = new Module::Function( + "function_name", 0xe165bf8023b9d9abLL); + function->size = 0x1e4bb0eb1cbf5b09LL; + function->parameter_size = 0x772beee89114358aLL; + Module::Line line = { 0xe165bf8023b9d9abLL, 0x1e4bb0eb1cbf5b09LL, + file, 67519080 }; + function->lines.push_back(line); + m.AddFunction(function); + + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + EXPECT_STREQ("MODULE os-name architecture id-string name with spaces\n" + "FILE 0 file_name.cc\n" + "FUNC e165bf8023b9d9ab 1e4bb0eb1cbf5b09 772beee89114358a" + " function_name\n" + "e165bf8023b9d9ab 1e4bb0eb1cbf5b09 67519080 0\n", + contents.c_str()); +} + +TEST(Write, RelativeLoadAddress) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + + // Some source files. We will expect to see them in lexicographic order. + Module::File *file1 = m.FindFile("filename-b.cc"); + Module::File *file2 = m.FindFile("filename-a.cc"); + + // A function. + Module::Function *function = new Module::Function( + "A_FLIBBERTIJIBBET::a_will_o_the_wisp(a clown)", 0xbec774ea5dd935f3LL); + function->size = 0x2922088f98d3f6fcLL; + function->parameter_size = 0xe5e9aa008bd5f0d0LL; + + // Some source lines. The module should not sort these. + Module::Line line1 = { 0xbec774ea5dd935f3LL, 0x1c2be6d6c5af2611LL, + file1, 41676901 }; + Module::Line line2 = { 0xdaf35bc123885c04LL, 0xcf621b8d324d0ebLL, + file2, 67519080 }; + function->lines.push_back(line2); + function->lines.push_back(line1); + + m.AddFunction(function); + + // Some stack information. + Module::StackFrameEntry *entry = new Module::StackFrameEntry(); + entry->address = 0x30f9e5c83323973dULL; + entry->size = 0x49fc9ca7c7c13dc2ULL; + entry->initial_rules[".cfa"] = "he was a handsome man"; + entry->initial_rules["and"] = "what i want to know is"; + entry->rule_changes[0x30f9e5c83323973eULL]["how"] = + "do you like your blueeyed boy"; + entry->rule_changes[0x30f9e5c83323973eULL]["Mister"] = "Death"; + m.AddStackFrameEntry(entry); + + // Set the load address. Doing this after adding all the data to + // the module must work fine. + m.SetLoadAddress(0x2ab698b0b6407073LL); + + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + EXPECT_STREQ("MODULE os-name architecture id-string name with spaces\n" + "FILE 0 filename-a.cc\n" + "FILE 1 filename-b.cc\n" + "FUNC 9410dc39a798c580 2922088f98d3f6fc e5e9aa008bd5f0d0" + " A_FLIBBERTIJIBBET::a_will_o_the_wisp(a clown)\n" + "b03cc3106d47eb91 cf621b8d324d0eb 67519080 0\n" + "9410dc39a798c580 1c2be6d6c5af2611 41676901 1\n" + "STACK CFI INIT 6434d177ce326ca 49fc9ca7c7c13dc2" + " .cfa: he was a handsome man" + " and: what i want to know is\n" + "STACK CFI 6434d177ce326cb" + " Mister: Death" + " how: do you like your blueeyed boy\n", + contents.c_str()); +} + +TEST(Write, OmitUnusedFiles) { + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + + // Create some source files. + Module::File *file1 = m.FindFile("filename1"); + m.FindFile("filename2"); // not used by any line + Module::File *file3 = m.FindFile("filename3"); + + // Create a function. + Module::Function *function = new Module::Function( + "function_name", 0x9b926d464f0b9384LL); + function->size = 0x4f524a4ba795e6a6LL; + function->parameter_size = 0xbbe8133a6641c9b7LL; + + // Source files that refer to some files, but not others. + Module::Line line1 = { 0x595fa44ebacc1086LL, 0x1e1e0191b066c5b3LL, + file1, 137850127 }; + Module::Line line2 = { 0x401ce8c8a12d25e3LL, 0x895751c41b8d2ce2LL, + file3, 28113549 }; + function->lines.push_back(line1); + function->lines.push_back(line2); + m.AddFunction(function); + + m.AssignSourceIds(); + + vector<Module::File *> vec; + m.GetFiles(&vec); + EXPECT_EQ((size_t) 3, vec.size()); + EXPECT_STREQ("filename1", vec[0]->name.c_str()); + EXPECT_NE(-1, vec[0]->source_id); + // Expect filename2 not to be used. + EXPECT_STREQ("filename2", vec[1]->name.c_str()); + EXPECT_EQ(-1, vec[1]->source_id); + EXPECT_STREQ("filename3", vec[2]->name.c_str()); + EXPECT_NE(-1, vec[2]->source_id); + + stringstream s; + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + EXPECT_STREQ("MODULE os-name architecture id-string name with spaces\n" + "FILE 0 filename1\n" + "FILE 1 filename3\n" + "FUNC 9b926d464f0b9384 4f524a4ba795e6a6 bbe8133a6641c9b7" + " function_name\n" + "595fa44ebacc1086 1e1e0191b066c5b3 137850127 0\n" + "401ce8c8a12d25e3 895751c41b8d2ce2 28113549 1\n", + contents.c_str()); +} + +TEST(Write, NoCFI) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + + // Some source files. We will expect to see them in lexicographic order. + Module::File *file1 = m.FindFile("filename.cc"); + + // A function. + Module::Function *function = new Module::Function( + "A_FLIBBERTIJIBBET::a_will_o_the_wisp(a clown)", 0xbec774ea5dd935f3LL); + function->size = 0x2922088f98d3f6fcLL; + function->parameter_size = 0xe5e9aa008bd5f0d0LL; + + // Some source lines. The module should not sort these. + Module::Line line1 = { 0xbec774ea5dd935f3LL, 0x1c2be6d6c5af2611LL, + file1, 41676901 }; + function->lines.push_back(line1); + + m.AddFunction(function); + + // Some stack information. + Module::StackFrameEntry *entry = new Module::StackFrameEntry(); + entry->address = 0x30f9e5c83323973dULL; + entry->size = 0x49fc9ca7c7c13dc2ULL; + entry->initial_rules[".cfa"] = "he was a handsome man"; + entry->initial_rules["and"] = "what i want to know is"; + entry->rule_changes[0x30f9e5c83323973eULL]["how"] = + "do you like your blueeyed boy"; + entry->rule_changes[0x30f9e5c83323973eULL]["Mister"] = "Death"; + m.AddStackFrameEntry(entry); + + // Set the load address. Doing this after adding all the data to + // the module must work fine. + m.SetLoadAddress(0x2ab698b0b6407073LL); + + m.Write(s, NO_CFI); + string contents = s.str(); + EXPECT_STREQ("MODULE os-name architecture id-string name with spaces\n" + "FILE 0 filename.cc\n" + "FUNC 9410dc39a798c580 2922088f98d3f6fc e5e9aa008bd5f0d0" + " A_FLIBBERTIJIBBET::a_will_o_the_wisp(a clown)\n" + "9410dc39a798c580 1c2be6d6c5af2611 41676901 0\n", + contents.c_str()); +} + +TEST(Construct, AddFunctions) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + + // Two functions. + Module::Function *function1 = new Module::Function( + "_without_form", 0xd35024aa7ca7da5cLL); + function1->size = 0x200b26e605f99071LL; + function1->parameter_size = 0xf14ac4fed48c4a99LL; + + Module::Function *function2 = new Module::Function( + "_and_void", 0x2987743d0b35b13fLL); + function2->size = 0xb369db048deb3010LL; + function2->parameter_size = 0x938e556cb5a79988LL; + + // Put them in a vector. + vector<Module::Function *> vec; + vec.push_back(function1); + vec.push_back(function2); + + m.AddFunctions(vec.begin(), vec.end()); + + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + EXPECT_STREQ("MODULE os-name architecture id-string name with spaces\n" + "FUNC 2987743d0b35b13f b369db048deb3010 938e556cb5a79988" + " _and_void\n" + "FUNC d35024aa7ca7da5c 200b26e605f99071 f14ac4fed48c4a99" + " _without_form\n", + contents.c_str()); + + // Check that m.GetFunctions returns the functions we expect. + vec.clear(); + m.GetFunctions(&vec, vec.end()); + EXPECT_TRUE(vec.end() != find(vec.begin(), vec.end(), function1)); + EXPECT_TRUE(vec.end() != find(vec.begin(), vec.end(), function2)); + EXPECT_EQ((size_t) 2, vec.size()); +} + +TEST(Construct, AddFrames) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + + // First STACK CFI entry, with no initial rules or deltas. + Module::StackFrameEntry *entry1 = new Module::StackFrameEntry(); + entry1->address = 0xddb5f41285aa7757ULL; + entry1->size = 0x1486493370dc5073ULL; + m.AddStackFrameEntry(entry1); + + // Second STACK CFI entry, with initial rules but no deltas. + Module::StackFrameEntry *entry2 = new Module::StackFrameEntry(); + entry2->address = 0x8064f3af5e067e38ULL; + entry2->size = 0x0de2a5ee55509407ULL; + entry2->initial_rules[".cfa"] = "I think that I shall never see"; + entry2->initial_rules["stromboli"] = "a poem lovely as a tree"; + entry2->initial_rules["cannoli"] = "a tree whose hungry mouth is prest"; + m.AddStackFrameEntry(entry2); + + // Third STACK CFI entry, with initial rules and deltas. + Module::StackFrameEntry *entry3 = new Module::StackFrameEntry(); + entry3->address = 0x5e8d0db0a7075c6cULL; + entry3->size = 0x1c7edb12a7aea229ULL; + entry3->initial_rules[".cfa"] = "Whose woods are these"; + entry3->rule_changes[0x47ceb0f63c269d7fULL]["calzone"] = + "the village though"; + entry3->rule_changes[0x47ceb0f63c269d7fULL]["cannoli"] = + "he will not see me stopping here"; + entry3->rule_changes[0x36682fad3763ffffULL]["stromboli"] = + "his house is in"; + entry3->rule_changes[0x36682fad3763ffffULL][".cfa"] = + "I think I know"; + m.AddStackFrameEntry(entry3); + + // Check that Write writes STACK CFI records properly. + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + EXPECT_STREQ("MODULE os-name architecture id-string name with spaces\n" + "STACK CFI INIT ddb5f41285aa7757 1486493370dc5073 \n" + "STACK CFI INIT 8064f3af5e067e38 de2a5ee55509407" + " .cfa: I think that I shall never see" + " cannoli: a tree whose hungry mouth is prest" + " stromboli: a poem lovely as a tree\n" + "STACK CFI INIT 5e8d0db0a7075c6c 1c7edb12a7aea229" + " .cfa: Whose woods are these\n" + "STACK CFI 36682fad3763ffff" + " .cfa: I think I know" + " stromboli: his house is in\n" + "STACK CFI 47ceb0f63c269d7f" + " calzone: the village though" + " cannoli: he will not see me stopping here\n", + contents.c_str()); + + // Check that GetStackFrameEntries works. + vector<Module::StackFrameEntry *> entries; + m.GetStackFrameEntries(&entries); + ASSERT_EQ(3U, entries.size()); + // Check first entry. + EXPECT_EQ(0xddb5f41285aa7757ULL, entries[0]->address); + EXPECT_EQ(0x1486493370dc5073ULL, entries[0]->size); + ASSERT_EQ(0U, entries[0]->initial_rules.size()); + ASSERT_EQ(0U, entries[0]->rule_changes.size()); + // Check second entry. + EXPECT_EQ(0x8064f3af5e067e38ULL, entries[1]->address); + EXPECT_EQ(0x0de2a5ee55509407ULL, entries[1]->size); + ASSERT_EQ(3U, entries[1]->initial_rules.size()); + Module::RuleMap entry2_initial; + entry2_initial[".cfa"] = "I think that I shall never see"; + entry2_initial["stromboli"] = "a poem lovely as a tree"; + entry2_initial["cannoli"] = "a tree whose hungry mouth is prest"; + EXPECT_THAT(entries[1]->initial_rules, ContainerEq(entry2_initial)); + ASSERT_EQ(0U, entries[1]->rule_changes.size()); + // Check third entry. + EXPECT_EQ(0x5e8d0db0a7075c6cULL, entries[2]->address); + EXPECT_EQ(0x1c7edb12a7aea229ULL, entries[2]->size); + Module::RuleMap entry3_initial; + entry3_initial[".cfa"] = "Whose woods are these"; + EXPECT_THAT(entries[2]->initial_rules, ContainerEq(entry3_initial)); + Module::RuleChangeMap entry3_changes; + entry3_changes[0x36682fad3763ffffULL][".cfa"] = "I think I know"; + entry3_changes[0x36682fad3763ffffULL]["stromboli"] = "his house is in"; + entry3_changes[0x47ceb0f63c269d7fULL]["calzone"] = "the village though"; + entry3_changes[0x47ceb0f63c269d7fULL]["cannoli"] = + "he will not see me stopping here"; + EXPECT_THAT(entries[2]->rule_changes, ContainerEq(entry3_changes)); +} + +TEST(Construct, UniqueFiles) { + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + Module::File *file1 = m.FindFile("foo"); + Module::File *file2 = m.FindFile(string("bar")); + Module::File *file3 = m.FindFile(string("foo")); + Module::File *file4 = m.FindFile("bar"); + EXPECT_NE(file1, file2); + EXPECT_EQ(file1, file3); + EXPECT_EQ(file2, file4); + EXPECT_EQ(file1, m.FindExistingFile("foo")); + EXPECT_TRUE(m.FindExistingFile("baz") == NULL); +} + +TEST(Construct, DuplicateFunctions) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + + // Two functions. + Module::Function *function1 = generate_duplicate_function("_without_form"); + Module::Function *function2 = generate_duplicate_function("_without_form"); + + m.AddFunction(function1); + m.AddFunction(function2); + + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + EXPECT_STREQ("MODULE os-name architecture id-string name with spaces\n" + "FUNC d35402aac7a7ad5c 200b26e605f99071 f14ac4fed48c4a99" + " _without_form\n", + contents.c_str()); +} + +TEST(Construct, FunctionsWithSameAddress) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + + // Two functions. + Module::Function *function1 = generate_duplicate_function("_without_form"); + Module::Function *function2 = generate_duplicate_function("_and_void"); + + m.AddFunction(function1); + m.AddFunction(function2); + + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + EXPECT_STREQ("MODULE os-name architecture id-string name with spaces\n" + "FUNC d35402aac7a7ad5c 200b26e605f99071 f14ac4fed48c4a99" + " _and_void\n" + "FUNC d35402aac7a7ad5c 200b26e605f99071 f14ac4fed48c4a99" + " _without_form\n", + contents.c_str()); +} + +// Externs should be written out as PUBLIC records, sorted by +// address. +TEST(Construct, Externs) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + + // Two externs. + Module::Extern *extern1 = new Module::Extern(0xffff); + extern1->name = "_abc"; + Module::Extern *extern2 = new Module::Extern(0xaaaa); + extern2->name = "_xyz"; + + m.AddExtern(extern1); + m.AddExtern(extern2); + + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + + EXPECT_STREQ("MODULE " MODULE_OS " " MODULE_ARCH " " + MODULE_ID " " MODULE_NAME "\n" + "PUBLIC aaaa 0 _xyz\n" + "PUBLIC ffff 0 _abc\n", + contents.c_str()); +} + +// Externs with the same address should only keep the first entry +// added. +TEST(Construct, DuplicateExterns) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + + // Two externs. + Module::Extern *extern1 = new Module::Extern(0xffff); + extern1->name = "_xyz"; + Module::Extern *extern2 = new Module::Extern(0xffff); + extern2->name = "_abc"; + + m.AddExtern(extern1); + m.AddExtern(extern2); + + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + + EXPECT_STREQ("MODULE " MODULE_OS " " MODULE_ARCH " " + MODULE_ID " " MODULE_NAME "\n" + "PUBLIC ffff 0 _xyz\n", + contents.c_str()); +} + +// If there exists an extern and a function at the same address, only write +// out the FUNC entry. +TEST(Construct, FunctionsAndExternsWithSameAddress) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, MODULE_ARCH, MODULE_ID); + + // Two externs. + Module::Extern* extern1 = new Module::Extern(0xabc0); + extern1->name = "abc"; + Module::Extern* extern2 = new Module::Extern(0xfff0); + extern2->name = "xyz"; + + m.AddExtern(extern1); + m.AddExtern(extern2); + + Module::Function* function = new Module::Function("_xyz", 0xfff0); + function->size = 0x10; + function->parameter_size = 0; + m.AddFunction(function); + + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + + EXPECT_STREQ("MODULE " MODULE_OS " " MODULE_ARCH " " + MODULE_ID " " MODULE_NAME "\n" + "FUNC fff0 10 0 _xyz\n" + "PUBLIC abc0 0 abc\n", + contents.c_str()); +} + +// If there exists an extern and a function at the same address, only write +// out the FUNC entry. For ARM THUMB, the extern that comes from the ELF +// symbol section has bit 0 set. +TEST(Construct, FunctionsAndThumbExternsWithSameAddress) { + stringstream s; + Module m(MODULE_NAME, MODULE_OS, "arm", MODULE_ID); + + // Two THUMB externs. + Module::Extern* thumb_extern1 = new Module::Extern(0xabc1); + thumb_extern1->name = "thumb_abc"; + Module::Extern* thumb_extern2 = new Module::Extern(0xfff1); + thumb_extern2->name = "thumb_xyz"; + + Module::Extern* arm_extern1 = new Module::Extern(0xcc00); + arm_extern1->name = "arm_func"; + + m.AddExtern(thumb_extern1); + m.AddExtern(thumb_extern2); + m.AddExtern(arm_extern1); + + // The corresponding function from the DWARF debug data have the actual + // address. + Module::Function* function = new Module::Function("_thumb_xyz", 0xfff0); + function->size = 0x10; + function->parameter_size = 0; + m.AddFunction(function); + + m.Write(s, ALL_SYMBOL_DATA); + string contents = s.str(); + + EXPECT_STREQ("MODULE " MODULE_OS " arm " + MODULE_ID " " MODULE_NAME "\n" + "FUNC fff0 10 0 _thumb_xyz\n" + "PUBLIC abc1 0 thumb_abc\n" + "PUBLIC cc00 0 arm_func\n", + contents.c_str()); +} diff --git a/3rdParty/Breakpad/src/common/scoped_ptr.h b/3rdParty/Breakpad/src/common/scoped_ptr.h new file mode 100644 index 0000000..d137c18 --- /dev/null +++ b/3rdParty/Breakpad/src/common/scoped_ptr.h @@ -0,0 +1,404 @@ +// Copyright 2013 Google Inc. All Rights Reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Scopers help you manage ownership of a pointer, helping you easily manage the +// a pointer within a scope, and automatically destroying the pointer at the +// end of a scope. There are two main classes you will use, which correspond +// to the operators new/delete and new[]/delete[]. +// +// Example usage (scoped_ptr): +// { +// scoped_ptr<Foo> foo(new Foo("wee")); +// } // foo goes out of scope, releasing the pointer with it. +// +// { +// scoped_ptr<Foo> foo; // No pointer managed. +// foo.reset(new Foo("wee")); // Now a pointer is managed. +// foo.reset(new Foo("wee2")); // Foo("wee") was destroyed. +// foo.reset(new Foo("wee3")); // Foo("wee2") was destroyed. +// foo->Method(); // Foo::Method() called. +// foo.get()->Method(); // Foo::Method() called. +// SomeFunc(foo.release()); // SomeFunc takes ownership, foo no longer +// // manages a pointer. +// foo.reset(new Foo("wee4")); // foo manages a pointer again. +// foo.reset(); // Foo("wee4") destroyed, foo no longer +// // manages a pointer. +// } // foo wasn't managing a pointer, so nothing was destroyed. +// +// Example usage (scoped_array): +// { +// scoped_array<Foo> foo(new Foo[100]); +// foo.get()->Method(); // Foo::Method on the 0th element. +// foo[10].Method(); // Foo::Method on the 10th element. +// } + +#ifndef COMMON_SCOPED_PTR_H_ +#define COMMON_SCOPED_PTR_H_ + +// This is an implementation designed to match the anticipated future TR2 +// implementation of the scoped_ptr class, and its closely-related brethren, +// scoped_array, scoped_ptr_malloc. + +#include <assert.h> +#include <stddef.h> +#include <stdlib.h> + +namespace google_breakpad { + +// A scoped_ptr<T> is like a T*, except that the destructor of scoped_ptr<T> +// automatically deletes the pointer it holds (if any). +// That is, scoped_ptr<T> owns the T object that it points to. +// Like a T*, a scoped_ptr<T> may hold either NULL or a pointer to a T object. +// Also like T*, scoped_ptr<T> is thread-compatible, and once you +// dereference it, you get the threadsafety guarantees of T. +// +// The size of a scoped_ptr is small: +// sizeof(scoped_ptr<C>) == sizeof(C*) +template <class C> +class scoped_ptr { + public: + + // The element type + typedef C element_type; + + // Constructor. Defaults to initializing with NULL. + // There is no way to create an uninitialized scoped_ptr. + // The input parameter must be allocated with new. + explicit scoped_ptr(C* p = NULL) : ptr_(p) { } + + // Destructor. If there is a C object, delete it. + // We don't need to test ptr_ == NULL because C++ does that for us. + ~scoped_ptr() { + enum { type_must_be_complete = sizeof(C) }; + delete ptr_; + } + + // Reset. Deletes the current owned object, if any. + // Then takes ownership of a new object, if given. + // this->reset(this->get()) works. + void reset(C* p = NULL) { + if (p != ptr_) { + enum { type_must_be_complete = sizeof(C) }; + delete ptr_; + ptr_ = p; + } + } + + // Accessors to get the owned object. + // operator* and operator-> will assert() if there is no current object. + C& operator*() const { + assert(ptr_ != NULL); + return *ptr_; + } + C* operator->() const { + assert(ptr_ != NULL); + return ptr_; + } + C* get() const { return ptr_; } + + // Comparison operators. + // These return whether two scoped_ptr refer to the same object, not just to + // two different but equal objects. + bool operator==(C* p) const { return ptr_ == p; } + bool operator!=(C* p) const { return ptr_ != p; } + + // Swap two scoped pointers. + void swap(scoped_ptr& p2) { + C* tmp = ptr_; + ptr_ = p2.ptr_; + p2.ptr_ = tmp; + } + + // Release a pointer. + // The return value is the current pointer held by this object. + // If this object holds a NULL pointer, the return value is NULL. + // After this operation, this object will hold a NULL pointer, + // and will not own the object any more. + C* release() { + C* retVal = ptr_; + ptr_ = NULL; + return retVal; + } + + private: + C* ptr_; + + // Forbid comparison of scoped_ptr types. If C2 != C, it totally doesn't + // make sense, and if C2 == C, it still doesn't make sense because you should + // never have the same object owned by two different scoped_ptrs. + template <class C2> bool operator==(scoped_ptr<C2> const& p2) const; + template <class C2> bool operator!=(scoped_ptr<C2> const& p2) const; + + // Disallow evil constructors + scoped_ptr(const scoped_ptr&); + void operator=(const scoped_ptr&); +}; + +// Free functions +template <class C> +void swap(scoped_ptr<C>& p1, scoped_ptr<C>& p2) { + p1.swap(p2); +} + +template <class C> +bool operator==(C* p1, const scoped_ptr<C>& p2) { + return p1 == p2.get(); +} + +template <class C> +bool operator!=(C* p1, const scoped_ptr<C>& p2) { + return p1 != p2.get(); +} + +// scoped_array<C> is like scoped_ptr<C>, except that the caller must allocate +// with new [] and the destructor deletes objects with delete []. +// +// As with scoped_ptr<C>, a scoped_array<C> either points to an object +// or is NULL. A scoped_array<C> owns the object that it points to. +// scoped_array<T> is thread-compatible, and once you index into it, +// the returned objects have only the threadsafety guarantees of T. +// +// Size: sizeof(scoped_array<C>) == sizeof(C*) +template <class C> +class scoped_array { + public: + + // The element type + typedef C element_type; + + // Constructor. Defaults to intializing with NULL. + // There is no way to create an uninitialized scoped_array. + // The input parameter must be allocated with new []. + explicit scoped_array(C* p = NULL) : array_(p) { } + + // Destructor. If there is a C object, delete it. + // We don't need to test ptr_ == NULL because C++ does that for us. + ~scoped_array() { + enum { type_must_be_complete = sizeof(C) }; + delete[] array_; + } + + // Reset. Deletes the current owned object, if any. + // Then takes ownership of a new object, if given. + // this->reset(this->get()) works. + void reset(C* p = NULL) { + if (p != array_) { + enum { type_must_be_complete = sizeof(C) }; + delete[] array_; + array_ = p; + } + } + + // Get one element of the current object. + // Will assert() if there is no current object, or index i is negative. + C& operator[](ptrdiff_t i) const { + assert(i >= 0); + assert(array_ != NULL); + return array_[i]; + } + + // Get a pointer to the zeroth element of the current object. + // If there is no current object, return NULL. + C* get() const { + return array_; + } + + // Comparison operators. + // These return whether two scoped_array refer to the same object, not just to + // two different but equal objects. + bool operator==(C* p) const { return array_ == p; } + bool operator!=(C* p) const { return array_ != p; } + + // Swap two scoped arrays. + void swap(scoped_array& p2) { + C* tmp = array_; + array_ = p2.array_; + p2.array_ = tmp; + } + + // Release an array. + // The return value is the current pointer held by this object. + // If this object holds a NULL pointer, the return value is NULL. + // After this operation, this object will hold a NULL pointer, + // and will not own the object any more. + C* release() { + C* retVal = array_; + array_ = NULL; + return retVal; + } + + private: + C* array_; + + // Forbid comparison of different scoped_array types. + template <class C2> bool operator==(scoped_array<C2> const& p2) const; + template <class C2> bool operator!=(scoped_array<C2> const& p2) const; + + // Disallow evil constructors + scoped_array(const scoped_array&); + void operator=(const scoped_array&); +}; + +// Free functions +template <class C> +void swap(scoped_array<C>& p1, scoped_array<C>& p2) { + p1.swap(p2); +} + +template <class C> +bool operator==(C* p1, const scoped_array<C>& p2) { + return p1 == p2.get(); +} + +template <class C> +bool operator!=(C* p1, const scoped_array<C>& p2) { + return p1 != p2.get(); +} + +// This class wraps the c library function free() in a class that can be +// passed as a template argument to scoped_ptr_malloc below. +class ScopedPtrMallocFree { + public: + inline void operator()(void* x) const { + free(x); + } +}; + +// scoped_ptr_malloc<> is similar to scoped_ptr<>, but it accepts a +// second template argument, the functor used to free the object. + +template<class C, class FreeProc = ScopedPtrMallocFree> +class scoped_ptr_malloc { + public: + + // The element type + typedef C element_type; + + // Constructor. Defaults to initializing with NULL. + // There is no way to create an uninitialized scoped_ptr. + // The input parameter must be allocated with an allocator that matches the + // Free functor. For the default Free functor, this is malloc, calloc, or + // realloc. + explicit scoped_ptr_malloc(C* p = NULL): ptr_(p) {} + + // Destructor. If there is a C object, call the Free functor. + ~scoped_ptr_malloc() { + reset(); + } + + // Reset. Calls the Free functor on the current owned object, if any. + // Then takes ownership of a new object, if given. + // this->reset(this->get()) works. + void reset(C* p = NULL) { + if (ptr_ != p) { + FreeProc free_proc; + free_proc(ptr_); + ptr_ = p; + } + } + + // Get the current object. + // operator* and operator-> will cause an assert() failure if there is + // no current object. + C& operator*() const { + assert(ptr_ != NULL); + return *ptr_; + } + + C* operator->() const { + assert(ptr_ != NULL); + return ptr_; + } + + C* get() const { + return ptr_; + } + + // Comparison operators. + // These return whether a scoped_ptr_malloc and a plain pointer refer + // to the same object, not just to two different but equal objects. + // For compatibility with the boost-derived implementation, these + // take non-const arguments. + bool operator==(C* p) const { + return ptr_ == p; + } + + bool operator!=(C* p) const { + return ptr_ != p; + } + + // Swap two scoped pointers. + void swap(scoped_ptr_malloc & b) { + C* tmp = b.ptr_; + b.ptr_ = ptr_; + ptr_ = tmp; + } + + // Release a pointer. + // The return value is the current pointer held by this object. + // If this object holds a NULL pointer, the return value is NULL. + // After this operation, this object will hold a NULL pointer, + // and will not own the object any more. + C* release() { + C* tmp = ptr_; + ptr_ = NULL; + return tmp; + } + + private: + C* ptr_; + + // no reason to use these: each scoped_ptr_malloc should have its own object + template <class C2, class GP> + bool operator==(scoped_ptr_malloc<C2, GP> const& p) const; + template <class C2, class GP> + bool operator!=(scoped_ptr_malloc<C2, GP> const& p) const; + + // Disallow evil constructors + scoped_ptr_malloc(const scoped_ptr_malloc&); + void operator=(const scoped_ptr_malloc&); +}; + +template<class C, class FP> inline +void swap(scoped_ptr_malloc<C, FP>& a, scoped_ptr_malloc<C, FP>& b) { + a.swap(b); +} + +template<class C, class FP> inline +bool operator==(C* p, const scoped_ptr_malloc<C, FP>& b) { + return p == b.get(); +} + +template<class C, class FP> inline +bool operator!=(C* p, const scoped_ptr_malloc<C, FP>& b) { + return p != b.get(); +} + +} // namespace google_breakpad + +#endif // COMMON_SCOPED_PTR_H_ diff --git a/3rdParty/Breakpad/src/common/simple_string_dictionary.cc b/3rdParty/Breakpad/src/common/simple_string_dictionary.cc new file mode 100644 index 0000000..e0a74ce --- /dev/null +++ b/3rdParty/Breakpad/src/common/simple_string_dictionary.cc @@ -0,0 +1,45 @@ +// Copyright (c) 2007, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "common/simple_string_dictionary.h" + +namespace google_breakpad { + +namespace { + +// In C++98 (ISO 14882), section 9.5.1 says that a union cannot have a member +// with a non-trivial ctor, copy ctor, dtor, or assignment operator. Use this +// property to ensure that Entry remains POD. +union Compile_Assert { + NonAllocatingMap<1, 1, 1>::Entry Compile_Assert__entry_must_be_pod; +}; + +} + +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/common/simple_string_dictionary.h b/3rdParty/Breakpad/src/common/simple_string_dictionary.h new file mode 100644 index 0000000..d2ab17f --- /dev/null +++ b/3rdParty/Breakpad/src/common/simple_string_dictionary.h @@ -0,0 +1,260 @@ +// Copyright (c) 2007, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef COMMON_SIMPLE_STRING_DICTIONARY_H_ +#define COMMON_SIMPLE_STRING_DICTIONARY_H_ + +#include <assert.h> +#include <string.h> + +#include "common/basictypes.h" + +namespace google_breakpad { + +// Opaque type for the serialized representation of a NonAllocatingMap. One is +// created in NonAllocatingMap::Serialize and can be deserialized using one of +// the constructors. +struct SerializedNonAllocatingMap; + +// NonAllocatingMap is an implementation of a map/dictionary collection that +// uses a fixed amount of storage, so that it does not perform any dynamic +// allocations for its operations. +// +// The actual map storage (the Entry) is guaranteed to be POD, so that it can +// be transmitted over various IPC mechanisms. +// +// The template parameters control the amount of storage used for the key, +// value, and map. The KeySize and ValueSize are measured in bytes, not glyphs, +// and includes space for a \0 byte. This gives space for KeySize-1 and +// ValueSize-1 characters in an entry. NumEntries is the total number of +// entries that will fit in the map. +template <size_t KeySize, size_t ValueSize, size_t NumEntries> +class NonAllocatingMap { + public: + // Constant and publicly accessible versions of the template parameters. + static const size_t key_size = KeySize; + static const size_t value_size = ValueSize; + static const size_t num_entries = NumEntries; + + // An Entry object is a single entry in the map. If the key is a 0-length + // NUL-terminated string, the entry is empty. + struct Entry { + char key[KeySize]; + char value[ValueSize]; + + bool is_active() const { + return key[0] != '\0'; + } + }; + + // An Iterator can be used to iterate over all the active entries in a + // NonAllocatingMap. + class Iterator { + public: + explicit Iterator(const NonAllocatingMap& map) + : map_(map), + current_(0) { + } + + // Returns the next entry in the map, or NULL if at the end of the + // collection. + const Entry* Next() { + while (current_ < map_.num_entries) { + const Entry* entry = &map_.entries_[current_++]; + if (entry->is_active()) { + return entry; + } + } + return NULL; + } + + private: + const NonAllocatingMap& map_; + size_t current_; + + DISALLOW_COPY_AND_ASSIGN(Iterator); + }; + + NonAllocatingMap() : entries_() { + } + + NonAllocatingMap(const NonAllocatingMap& other) { + *this = other; + } + + NonAllocatingMap& operator=(const NonAllocatingMap& other) { + assert(other.key_size == key_size); + assert(other.value_size == value_size); + assert(other.num_entries == num_entries); + if (other.key_size == key_size && other.value_size == value_size && + other.num_entries == num_entries) { + memcpy(entries_, other.entries_, sizeof(entries_)); + } + return *this; + } + + // Constructs a map from its serialized form. |map| should be the out + // parameter from Serialize() and |size| should be its return value. + NonAllocatingMap(const SerializedNonAllocatingMap* map, size_t size) { + assert(size == sizeof(entries_)); + if (size == sizeof(entries_)) { + memcpy(entries_, map, size); + } + } + + // Returns the number of active key/value pairs. The upper limit for this + // is NumEntries. + size_t GetCount() const { + size_t count = 0; + for (size_t i = 0; i < num_entries; ++i) { + if (entries_[i].is_active()) { + ++count; + } + } + return count; + } + + // Given |key|, returns its corresponding |value|. |key| must not be NULL. If + // the key is not found, NULL is returned. + const char* GetValueForKey(const char* key) const { + assert(key); + if (!key) + return NULL; + + const Entry* entry = GetConstEntryForKey(key); + if (!entry) + return NULL; + + return entry->value; + } + + // Stores |value| into |key|, replacing the existing value if |key| is + // already present. |key| must not be NULL. If |value| is NULL, the key is + // removed from the map. If there is no more space in the map, then the + // operation silently fails. + void SetKeyValue(const char* key, const char* value) { + if (!value) { + RemoveKey(key); + return; + } + + assert(key); + if (!key) + return; + + // Key must not be an empty string. + assert(key[0] != '\0'); + if (key[0] == '\0') + return; + + Entry* entry = GetEntryForKey(key); + + // If it does not yet exist, attempt to insert it. + if (!entry) { + for (size_t i = 0; i < num_entries; ++i) { + if (!entries_[i].is_active()) { + entry = &entries_[i]; + + strncpy(entry->key, key, key_size); + entry->key[key_size - 1] = '\0'; + + break; + } + } + } + + // If the map is out of space, entry will be NULL. + if (!entry) + return; + +#ifndef NDEBUG + // Sanity check that the key only appears once. + int count = 0; + for (size_t i = 0; i < num_entries; ++i) { + if (strncmp(entries_[i].key, key, key_size) == 0) + ++count; + } + assert(count == 1); +#endif + + strncpy(entry->value, value, value_size); + entry->value[value_size - 1] = '\0'; + } + + // Given |key|, removes any associated value. |key| must not be NULL. If + // the key is not found, this is a noop. + void RemoveKey(const char* key) { + assert(key); + if (!key) + return; + + Entry* entry = GetEntryForKey(key); + if (entry) { + entry->key[0] = '\0'; + entry->value[0] = '\0'; + } + +#ifndef NDEBUG + assert(GetEntryForKey(key) == NULL); +#endif + } + + // Places a serialized version of the map into |map| and returns the size. + // Both of these should be passed to the deserializing constructor. Note that + // the serialized |map| is scoped to the lifetime of the non-serialized + // instance of this class. The |map| can be copied across IPC boundaries. + size_t Serialize(const SerializedNonAllocatingMap** map) const { + *map = reinterpret_cast<const SerializedNonAllocatingMap*>(entries_); + return sizeof(entries_); + } + + private: + const Entry* GetConstEntryForKey(const char* key) const { + for (size_t i = 0; i < num_entries; ++i) { + if (strncmp(key, entries_[i].key, key_size) == 0) { + return &entries_[i]; + } + } + return NULL; + } + + Entry* GetEntryForKey(const char* key) { + return const_cast<Entry*>(GetConstEntryForKey(key)); + } + + Entry entries_[NumEntries]; +}; + +// For historical reasons this specialized version is available with the same +// size factors as a previous implementation. +typedef NonAllocatingMap<256, 256, 64> SimpleStringDictionary; + +} // namespace google_breakpad + +#endif // COMMON_SIMPLE_STRING_DICTIONARY_H_ diff --git a/3rdParty/Breakpad/src/common/simple_string_dictionary_unittest.cc b/3rdParty/Breakpad/src/common/simple_string_dictionary_unittest.cc new file mode 100644 index 0000000..34f4b9e --- /dev/null +++ b/3rdParty/Breakpad/src/common/simple_string_dictionary_unittest.cc @@ -0,0 +1,308 @@ +// Copyright (c) 2008, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "breakpad_googletest_includes.h" +#include "common/simple_string_dictionary.h" + +namespace google_breakpad { + +TEST(NonAllocatingMapTest, Entry) { + typedef NonAllocatingMap<5, 9, 15> TestMap; + TestMap map; + + const TestMap::Entry* entry = TestMap::Iterator(map).Next(); + EXPECT_FALSE(entry); + + // Try setting a key/value and then verify. + map.SetKeyValue("key1", "value1"); + entry = TestMap::Iterator(map).Next(); + ASSERT_TRUE(entry); + EXPECT_STREQ(entry->key, "key1"); + EXPECT_STREQ(entry->value, "value1"); + + // Try setting a new value. + map.SetKeyValue("key1", "value3"); + EXPECT_STREQ(entry->value, "value3"); + + // Make sure the key didn't change. + EXPECT_STREQ(entry->key, "key1"); + + // Clear the entry and verify the key and value are empty strings. + map.RemoveKey("key1"); + EXPECT_FALSE(entry->is_active()); + EXPECT_EQ(strlen(entry->key), 0u); + EXPECT_EQ(strlen(entry->value), 0u); +} + +TEST(NonAllocatingMapTest, SimpleStringDictionary) { + // Make a new dictionary + SimpleStringDictionary dict; + + // Set three distinct values on three keys + dict.SetKeyValue("key1", "value1"); + dict.SetKeyValue("key2", "value2"); + dict.SetKeyValue("key3", "value3"); + + EXPECT_NE(dict.GetValueForKey("key1"), "value1"); + EXPECT_NE(dict.GetValueForKey("key2"), "value2"); + EXPECT_NE(dict.GetValueForKey("key3"), "value3"); + EXPECT_EQ(dict.GetCount(), 3u); + // try an unknown key + EXPECT_FALSE(dict.GetValueForKey("key4")); + + // Remove a key + dict.RemoveKey("key3"); + + // Now make sure it's not there anymore + EXPECT_FALSE(dict.GetValueForKey("key3")); + + // Remove by setting value to NULL + dict.SetKeyValue("key2", NULL); + + // Now make sure it's not there anymore + EXPECT_FALSE(dict.GetValueForKey("key2")); +} + +TEST(NonAllocatingMapTest, CopyAndAssign) { + NonAllocatingMap<10, 10, 10> map; + map.SetKeyValue("one", "a"); + map.SetKeyValue("two", "b"); + map.SetKeyValue("three", "c"); + map.RemoveKey("two"); + EXPECT_EQ(2u, map.GetCount()); + + // Test copy. + NonAllocatingMap<10, 10, 10> map_copy(map); + EXPECT_EQ(2u, map_copy.GetCount()); + EXPECT_STREQ("a", map_copy.GetValueForKey("one")); + EXPECT_STREQ("c", map_copy.GetValueForKey("three")); + map_copy.SetKeyValue("four", "d"); + EXPECT_STREQ("d", map_copy.GetValueForKey("four")); + EXPECT_FALSE(map.GetValueForKey("four")); + + // Test assign. + NonAllocatingMap<10, 10, 10> map_assign; + map_assign = map; + EXPECT_EQ(2u, map_assign.GetCount()); + EXPECT_STREQ("a", map_assign.GetValueForKey("one")); + EXPECT_STREQ("c", map_assign.GetValueForKey("three")); + map_assign.SetKeyValue("four", "d"); + EXPECT_STREQ("d", map_assign.GetValueForKey("four")); + EXPECT_FALSE(map.GetValueForKey("four")); + + map.RemoveKey("one"); + EXPECT_FALSE(map.GetValueForKey("one")); + EXPECT_STREQ("a", map_copy.GetValueForKey("one")); + EXPECT_STREQ("a", map_assign.GetValueForKey("one")); +} + +// Add a bunch of values to the dictionary, remove some entries in the middle, +// and then add more. +TEST(NonAllocatingMapTest, Iterator) { + SimpleStringDictionary* dict = new SimpleStringDictionary(); + ASSERT_TRUE(dict); + + char key[SimpleStringDictionary::key_size]; + char value[SimpleStringDictionary::value_size]; + + const int kDictionaryCapacity = SimpleStringDictionary::num_entries; + const int kPartitionIndex = kDictionaryCapacity - 5; + + // We assume at least this size in the tests below + ASSERT_GE(kDictionaryCapacity, 64); + + // We'll keep track of the number of key/value pairs we think should + // be in the dictionary + int expectedDictionarySize = 0; + + // Set a bunch of key/value pairs like key0/value0, key1/value1, ... + for (int i = 0; i < kPartitionIndex; ++i) { + sprintf(key, "key%d", i); + sprintf(value, "value%d", i); + dict->SetKeyValue(key, value); + } + expectedDictionarySize = kPartitionIndex; + + // set a couple of the keys twice (with the same value) - should be nop + dict->SetKeyValue("key2", "value2"); + dict->SetKeyValue("key4", "value4"); + dict->SetKeyValue("key15", "value15"); + + // Remove some random elements in the middle + dict->RemoveKey("key7"); + dict->RemoveKey("key18"); + dict->RemoveKey("key23"); + dict->RemoveKey("key31"); + expectedDictionarySize -= 4; // we just removed four key/value pairs + + // Set some more key/value pairs like key59/value59, key60/value60, ... + for (int i = kPartitionIndex; i < kDictionaryCapacity; ++i) { + sprintf(key, "key%d", i); + sprintf(value, "value%d", i); + dict->SetKeyValue(key, value); + } + expectedDictionarySize += kDictionaryCapacity - kPartitionIndex; + + // Now create an iterator on the dictionary + SimpleStringDictionary::Iterator iter(*dict); + + // We then verify that it iterates through exactly the number of + // key/value pairs we expect, and that they match one-for-one with what we + // would expect. The ordering of the iteration does not matter... + + // used to keep track of number of occurrences found for key/value pairs + int count[kDictionaryCapacity]; + memset(count, 0, sizeof(count)); + + int totalCount = 0; + + const SimpleStringDictionary::Entry* entry; + while ((entry = iter.Next())) { + totalCount++; + + // Extract keyNumber from a string of the form key<keyNumber> + int keyNumber; + sscanf(entry->key, "key%d", &keyNumber); + + // Extract valueNumber from a string of the form value<valueNumber> + int valueNumber; + sscanf(entry->value, "value%d", &valueNumber); + + // The value number should equal the key number since that's how we set them + EXPECT_EQ(keyNumber, valueNumber); + + // Key and value numbers should be in proper range: + // 0 <= keyNumber < kDictionaryCapacity + bool isKeyInGoodRange = + (keyNumber >= 0 && keyNumber < kDictionaryCapacity); + bool isValueInGoodRange = + (valueNumber >= 0 && valueNumber < kDictionaryCapacity); + EXPECT_TRUE(isKeyInGoodRange); + EXPECT_TRUE(isValueInGoodRange); + + if (isKeyInGoodRange && isValueInGoodRange) { + ++count[keyNumber]; + } + } + + // Make sure each of the key/value pairs showed up exactly one time, except + // for the ones which we removed. + for (size_t i = 0; i < kDictionaryCapacity; ++i) { + // Skip over key7, key18, key23, and key31, since we removed them + if (!(i == 7 || i == 18 || i == 23 || i == 31)) { + EXPECT_EQ(count[i], 1); + } + } + + // Make sure the number of iterations matches the expected dictionary size. + EXPECT_EQ(totalCount, expectedDictionarySize); +} + + +TEST(NonAllocatingMapTest, AddRemove) { + NonAllocatingMap<5, 7, 6> map; + map.SetKeyValue("rob", "ert"); + map.SetKeyValue("mike", "pink"); + map.SetKeyValue("mark", "allays"); + + EXPECT_EQ(3u, map.GetCount()); + EXPECT_STREQ("ert", map.GetValueForKey("rob")); + EXPECT_STREQ("pink", map.GetValueForKey("mike")); + EXPECT_STREQ("allays", map.GetValueForKey("mark")); + + map.RemoveKey("mike"); + + EXPECT_EQ(2u, map.GetCount()); + EXPECT_FALSE(map.GetValueForKey("mike")); + + map.SetKeyValue("mark", "mal"); + EXPECT_EQ(2u, map.GetCount()); + EXPECT_STREQ("mal", map.GetValueForKey("mark")); + + map.RemoveKey("mark"); + EXPECT_EQ(1u, map.GetCount()); + EXPECT_FALSE(map.GetValueForKey("mark")); +} + +TEST(NonAllocatingMapTest, Serialize) { + typedef NonAllocatingMap<4, 5, 7> TestMap; + TestMap map; + map.SetKeyValue("one", "abc"); + map.SetKeyValue("two", "def"); + map.SetKeyValue("tre", "hig"); + + EXPECT_STREQ("abc", map.GetValueForKey("one")); + EXPECT_STREQ("def", map.GetValueForKey("two")); + EXPECT_STREQ("hig", map.GetValueForKey("tre")); + + const SerializedNonAllocatingMap* serialized; + size_t size = map.Serialize(&serialized); + + SerializedNonAllocatingMap* serialized_copy = + reinterpret_cast<SerializedNonAllocatingMap*>(malloc(size)); + ASSERT_TRUE(serialized_copy); + memcpy(serialized_copy, serialized, size); + + TestMap deserialized(serialized_copy, size); + free(serialized_copy); + + EXPECT_EQ(3u, deserialized.GetCount()); + EXPECT_STREQ("abc", deserialized.GetValueForKey("one")); + EXPECT_STREQ("def", deserialized.GetValueForKey("two")); + EXPECT_STREQ("hig", deserialized.GetValueForKey("tre")); +} + +// Running out of space shouldn't crash. +TEST(NonAllocatingMapTest, OutOfSpace) { + NonAllocatingMap<3, 2, 2> map; + map.SetKeyValue("a", "1"); + map.SetKeyValue("b", "2"); + map.SetKeyValue("c", "3"); + EXPECT_EQ(2u, map.GetCount()); + EXPECT_FALSE(map.GetValueForKey("c")); +} + +#ifndef NDEBUG + +TEST(NonAllocatingMapTest, NullKey) { + NonAllocatingMap<4, 6, 6> map; + ASSERT_DEATH(map.SetKeyValue(NULL, "hello"), ""); + + map.SetKeyValue("hi", "there"); + ASSERT_DEATH(map.GetValueForKey(NULL), ""); + EXPECT_STREQ("there", map.GetValueForKey("hi")); + + ASSERT_DEATH(map.GetValueForKey(NULL), ""); + map.RemoveKey("hi"); + EXPECT_EQ(0u, map.GetCount()); +} + +#endif // !NDEBUG + +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/common/stabs_reader.h b/3rdParty/Breakpad/src/common/stabs_reader.h index d89afc0..98ee2dd 100644 --- a/3rdParty/Breakpad/src/common/stabs_reader.h +++ b/3rdParty/Breakpad/src/common/stabs_reader.h @@ -53,11 +53,10 @@ #include <config.h> #endif -#ifdef HAVE_A_OUT_H -#include <a.out.h> -#endif #ifdef HAVE_MACH_O_NLIST_H #include <mach-o/nlist.h> +#elif defined(HAVE_A_OUT_H) +#include <a.out.h> #endif #include <string> diff --git a/3rdParty/Breakpad/src/common/stabs_reader_unittest.cc b/3rdParty/Breakpad/src/common/stabs_reader_unittest.cc new file mode 100644 index 0000000..a84da1c --- /dev/null +++ b/3rdParty/Breakpad/src/common/stabs_reader_unittest.cc @@ -0,0 +1,611 @@ +// Copyright (c) 2010 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// stabs_reader_unittest.cc: Unit tests for google_breakpad::StabsReader. + +#include <assert.h> +#include <errno.h> +#include <stab.h> +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> + +#include <fstream> +#include <iomanip> +#include <iostream> +#include <map> +#include <sstream> +#include <string> + +#include "breakpad_googletest_includes.h" +#include "common/stabs_reader.h" +#include "common/test_assembler.h" +#include "common/using_std_string.h" + +using ::testing::Eq; +using ::testing::InSequence; +using ::testing::Return; +using ::testing::StrEq; +using ::testing::Test; +using ::testing::_; +using google_breakpad::StabsHandler; +using google_breakpad::StabsReader; +using google_breakpad::test_assembler::Label; +using google_breakpad::test_assembler::Section; +using google_breakpad::test_assembler::kBigEndian; +using google_breakpad::test_assembler::kLittleEndian; +using std::map; + +namespace { + +// A StringAssembler is a class for generating .stabstr sections to present +// as input to the STABS parser. +class StringAssembler: public Section { + public: + StringAssembler() : in_cu_(false) { StartCU(); } + + // Add the string S to this StringAssembler, and return the string's + // offset within this compilation unit's strings. If S has been added + // already, this returns the offset of its first instance. + size_t Add(const string &s) { + map<string, size_t>::iterator it = added_.find(s); + if (it != added_.end()) + return it->second; + size_t offset = Size() - cu_start_; + AppendCString(s); + added_[s] = offset; + return offset; + } + + // Start a fresh compilation unit string collection. + void StartCU() { + // Ignore duplicate calls to StartCU. Our test data don't always call + // StartCU at all, meaning that our constructor has to take care of it, + // meaning that tests that *do* call StartCU call it twice at the + // beginning. This is not worth smoothing out. + if (in_cu_) return; + + added_.clear(); + cu_start_ = Size(); + + // Each compilation unit's strings start with an empty string. + AppendCString(""); + added_[""] = 0; + + in_cu_ = true; + } + + // Finish off the current CU's strings. + size_t EndCU() { + assert(in_cu_); + in_cu_ = false; + return Size() - cu_start_; + } + + private: + // The offset of the start of this compilation unit's strings. + size_t cu_start_; + + // True if we're in a CU. + bool in_cu_; + + // A map from the strings that have been added to this section to + // their starting indices within their compilation unit. + map<string, size_t> added_; +}; + +// A StabsAssembler is a class for generating .stab sections to present as +// test input for the STABS parser. +class StabsAssembler: public Section { + public: + // Create a StabsAssembler that uses StringAssembler for its strings. + StabsAssembler(StringAssembler *string_assembler) + : Section(string_assembler->endianness()), + string_assembler_(string_assembler), + value_size_(0), + entry_count_(0), + cu_header_(NULL) { } + ~StabsAssembler() { assert(!cu_header_); } + + // Accessor and setter for value_size_. + size_t value_size() const { return value_size_; } + StabsAssembler &set_value_size(size_t value_size) { + value_size_ = value_size; + return *this; + } + + // Append a STAB entry to the end of this section with the given + // characteristics. NAME is the offset of this entry's name string within + // its compilation unit's portion of the .stabstr section; this can be a + // value generated by a StringAssembler. Return a reference to this + // StabsAssembler. + StabsAssembler &Stab(uint8_t type, uint8_t other, Label descriptor, + Label value, Label name) { + D32(name); + D8(type); + D8(other); + D16(descriptor); + Append(endianness(), value_size_, value); + entry_count_++; + return *this; + } + + // As above, but automatically add NAME to our StringAssembler. + StabsAssembler &Stab(uint8_t type, uint8_t other, Label descriptor, + Label value, const string &name) { + return Stab(type, other, descriptor, value, string_assembler_->Add(name)); + } + + // Start a compilation unit named NAME, with an N_UNDF symbol to start + // it, and its own portion of the string section. Return a reference to + // this StabsAssembler. + StabsAssembler &StartCU(const string &name) { + assert(!cu_header_); + cu_header_ = new CUHeader; + string_assembler_->StartCU(); + entry_count_ = 0; + return Stab(N_UNDF, 0, + cu_header_->final_entry_count, + cu_header_->final_string_size, + string_assembler_->Add(name)); + } + + // Close off the current compilation unit. Return a reference to this + // StabsAssembler. + StabsAssembler &EndCU() { + assert(cu_header_); + cu_header_->final_entry_count = entry_count_; + cu_header_->final_string_size = string_assembler_->EndCU(); + delete cu_header_; + cu_header_ = NULL; + return *this; + } + + private: + // Data used in a compilation unit header STAB that we won't know until + // we've finished the compilation unit. + struct CUHeader { + // The final number of entries this compilation unit will hold. + Label final_entry_count; + + // The final size of this compilation unit's strings. + Label final_string_size; + }; + + // The strings for our STABS entries. + StringAssembler *string_assembler_; + + // The size of the 'value' field of stabs entries in this section. + size_t value_size_; + + // The number of entries in this compilation unit so far. + size_t entry_count_; + + // Header labels for this compilation unit, if we've started one but not + // finished it. + CUHeader *cu_header_; +}; + +class MockStabsReaderHandler: public StabsHandler { + public: + MOCK_METHOD3(StartCompilationUnit, + bool(const char *, uint64_t, const char *)); + MOCK_METHOD1(EndCompilationUnit, bool(uint64_t)); + MOCK_METHOD2(StartFunction, bool(const string &, uint64_t)); + MOCK_METHOD1(EndFunction, bool(uint64_t)); + MOCK_METHOD3(Line, bool(uint64_t, const char *, int)); + MOCK_METHOD2(Extern, bool(const string &, uint64_t)); + void Warning(const char *format, ...) { MockWarning(format); } + MOCK_METHOD1(MockWarning, void(const char *)); +}; + +struct StabsFixture { + StabsFixture() : stabs(&strings), unitized(true) { } + + // Create a StabsReader to parse the mock stabs data in stabs and + // strings, and pass the parsed information to mock_handler. Use the + // endianness and value size of stabs to parse the data. If all goes + // well, return the result of calling the reader's Process member + // function. Otherwise, return false. + bool ApplyHandlerToMockStabsData() { + string stabs_contents, stabstr_contents; + if (!stabs.GetContents(&stabs_contents) || + !strings.GetContents(&stabstr_contents)) + return false; + + // Run the parser on the test input, passing whatever we find to HANDLER. + StabsReader reader( + reinterpret_cast<const uint8_t *>(stabs_contents.data()), + stabs_contents.size(), + reinterpret_cast<const uint8_t *>(stabstr_contents.data()), + stabstr_contents.size(), + stabs.endianness() == kBigEndian, stabs.value_size(), unitized, + &mock_handler); + return reader.Process(); + } + + StringAssembler strings; + StabsAssembler stabs; + bool unitized; + MockStabsReaderHandler mock_handler; +}; + +class Stabs: public StabsFixture, public Test { }; + +TEST_F(Stabs, MockStabsInput) { + stabs.set_endianness(kLittleEndian); + stabs.set_value_size(4); + stabs + .Stab(N_SO, 149, 40232, 0x18a2a72bU, "builddir/") + .Stab(N_FUN, 83, 50010, 0x91a5353fU, + "not the SO with source file name we expected ") + .Stab(N_SO, 165, 24791, 0xfe69d23cU, "") + .Stab(N_SO, 184, 34178, 0xca4d883aU, "builddir1/") + .Stab(N_SO, 83, 40859, 0xd2fe5df3U, "file1.c") + .Stab(N_LSYM, 147, 39565, 0x60d4bb8aU, "not the FUN we're looking for") + .Stab(N_FUN, 120, 50271, 0xa049f4b1U, "fun1") + .Stab(N_BINCL, 150, 15694, 0xef65c659U, + "something to ignore in a FUN body") + .Stab(N_SLINE, 147, 4967, 0xd904b3f, "") + .Stab(N_SOL, 177, 56135, 0xbd97b1dcU, "header.h") + .Stab(N_SLINE, 130, 24610, 0x90f145b, "") + .Stab(N_FUN, 45, 32441, 0xbf27cf93U, + "fun2:some stabs type info here:to trim from the name") + .Stab(N_SLINE, 138, 39002, 0x8148b87, "") + .Stab(N_SOL, 60, 49318, 0x1d06e025U, "file1.c") + .Stab(N_SLINE, 29, 52163, 0x6eebbb7, "") + .Stab(N_SO, 167, 4647, 0xd04b7448U, "") + .Stab(N_LSYM, 58, 37837, 0xe6b14d37U, "") + .Stab(N_SO, 152, 7810, 0x11759f10U, "file3.c") + .Stab(N_SO, 218, 12447, 0x11cfe4b5U, ""); + + { + InSequence s; + + EXPECT_CALL(mock_handler, + StartCompilationUnit(StrEq("file1.c"), 0xd2fe5df3U, + StrEq("builddir1/"))) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, StartFunction(StrEq("fun1"), 0xa049f4b1U)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + Line(0xa049f4b1U + 0xd904b3f, StrEq("file1.c"), 4967)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + Line(0xa049f4b1U + 0x90f145b, StrEq("header.h"), 24610)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndFunction(0xbf27cf93U)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, StartFunction(StrEq("fun2"), 0xbf27cf93U)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + Line(0xbf27cf93U + 0x8148b87, StrEq("header.h"), 39002)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + Line(0xbf27cf93U + 0x6eebbb7, StrEq("file1.c"), 52163)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndFunction(0xd04b7448U)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndCompilationUnit(0xd04b7448U)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, StartCompilationUnit(StrEq("file3.c"), + 0x11759f10U, NULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndCompilationUnit(0x11cfe4b5U)) + .WillOnce(Return(true)); + } + + ASSERT_TRUE(ApplyHandlerToMockStabsData()); +} + +TEST_F(Stabs, AbruptCU) { + stabs.set_endianness(kBigEndian); + stabs.set_value_size(4); + stabs.Stab(N_SO, 177, 23446, 0xbf10d5e4, "file2-1.c"); + + { + InSequence s; + + EXPECT_CALL(mock_handler, + StartCompilationUnit(StrEq("file2-1.c"), 0xbf10d5e4, NULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndCompilationUnit(0)) + .WillOnce(Return(true)); + } + + ASSERT_TRUE(ApplyHandlerToMockStabsData()); +} + +TEST_F(Stabs, AbruptFunction) { + stabs.set_endianness(kLittleEndian); + stabs.set_value_size(8); + stabs + .Stab(N_SO, 218, 26631, 0xb83ddf10U, "file3-1.c") + .Stab(N_FUN, 113, 24765, 0xbbd4a145U, "fun3_1"); + + { + InSequence s; + + EXPECT_CALL(mock_handler, + StartCompilationUnit(StrEq("file3-1.c"), 0xb83ddf10U, NULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, StartFunction(StrEq("fun3_1"), 0xbbd4a145U)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndFunction(0)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndCompilationUnit(0)) + .WillOnce(Return(true)); + } + + ASSERT_TRUE(ApplyHandlerToMockStabsData()); +} + +TEST_F(Stabs, NoCU) { + stabs.set_endianness(kBigEndian); + stabs.set_value_size(8); + stabs.Stab(N_SO, 161, 25673, 0x8f676e7bU, "build-directory/"); + + EXPECT_CALL(mock_handler, StartCompilationUnit(_, _, _)) + .Times(0); + EXPECT_CALL(mock_handler, StartFunction(_, _)) + .Times(0); + + ASSERT_TRUE(ApplyHandlerToMockStabsData()); +} + +TEST_F(Stabs, NoCUEnd) { + stabs.set_endianness(kBigEndian); + stabs.set_value_size(8); + stabs + .Stab(N_SO, 116, 58280, 0x2f7493c9U, "file5-1.c") + .Stab(N_SO, 224, 23057, 0xf9f1d50fU, "file5-2.c"); + + { + InSequence s; + + EXPECT_CALL(mock_handler, + StartCompilationUnit(StrEq("file5-1.c"), 0x2f7493c9U, NULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndCompilationUnit(0)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + StartCompilationUnit(StrEq("file5-2.c"), 0xf9f1d50fU, NULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndCompilationUnit(0)) + .WillOnce(Return(true)); + } + + ASSERT_TRUE(ApplyHandlerToMockStabsData()); +} + +// On systems that store STABS in sections, string offsets are relative to +// the beginning of that compilation unit's strings, marked with N_UNDF +// symbols; see the comments for StabsReader::StabsReader. +TEST_F(Stabs, Unitized) { + stabs.set_endianness(kBigEndian); + stabs.set_value_size(4); + stabs + .StartCU("antimony") + .Stab(N_SO, 49, 26043, 0x7e259f1aU, "antimony") + .Stab(N_FUN, 101, 63253, 0x7fbcccaeU, "arsenic") + .Stab(N_SO, 124, 37175, 0x80b0014cU, "") + .EndCU() + .StartCU("aluminum") + .Stab(N_SO, 72, 23084, 0x86756839U, "aluminum") + .Stab(N_FUN, 59, 3305, 0xa8e120b0U, "selenium") + .Stab(N_SO, 178, 56949, 0xbffff983U, "") + .EndCU(); + + { + InSequence s; + EXPECT_CALL(mock_handler, + StartCompilationUnit(StrEq("antimony"), 0x7e259f1aU, NULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, StartFunction(Eq("arsenic"), 0x7fbcccaeU)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndFunction(0x80b0014cU)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndCompilationUnit(0x80b0014cU)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + StartCompilationUnit(StrEq("aluminum"), 0x86756839U, NULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, StartFunction(Eq("selenium"), 0xa8e120b0U)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndFunction(0xbffff983U)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndCompilationUnit(0xbffff983U)) + .WillOnce(Return(true)); + } + + ASSERT_TRUE(ApplyHandlerToMockStabsData()); +} + +// On systems that store STABS entries in the real symbol table, the N_UNDF +// entries have no special meaning, and shouldn't mess up the string +// indices. +TEST_F(Stabs, NonUnitized) { + stabs.set_endianness(kLittleEndian); + stabs.set_value_size(4); + unitized = false; + stabs + .Stab(N_UNDF, 21, 11551, 0x9bad2b2e, "") + .Stab(N_UNDF, 21, 11551, 0x9bad2b2e, "") + .Stab(N_SO, 71, 45139, 0x11a97352, "Tanzania") + .Stab(N_SO, 221, 41976, 0x21a97352, ""); + + { + InSequence s; + EXPECT_CALL(mock_handler, + StartCompilationUnit(StrEq("Tanzania"), + 0x11a97352, NULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndCompilationUnit(0x21a97352)) + .WillOnce(Return(true)); + } + + ASSERT_TRUE(ApplyHandlerToMockStabsData()); +} + +TEST_F(Stabs, FunctionEnd) { + stabs.set_endianness(kLittleEndian); + stabs.set_value_size(8); + stabs + .Stab(N_SO, 102, 62362, 0x52a830d644cd6942ULL, "compilation unit") + // This function is terminated by the start of the next function. + .Stab(N_FUN, 216, 38405, 0xbb5ab70ecdd23bfeULL, "function 1") + // This function is terminated by an explicit end-of-function stab, + // whose value is a size in bytes. + .Stab(N_FUN, 240, 10973, 0xc954de9b8fb3e5e2ULL, "function 2") + .Stab(N_FUN, 14, 36749, 0xc1ab, "") + // This function is terminated by the end of the compilation unit. + .Stab(N_FUN, 143, 64514, 0xdff98c9a35386e1fULL, "function 3") + .Stab(N_SO, 164, 60142, 0xfdacb856e78bbf57ULL, ""); + + { + InSequence s; + EXPECT_CALL(mock_handler, + StartCompilationUnit(StrEq("compilation unit"), + 0x52a830d644cd6942ULL, NULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + StartFunction(Eq("function 1"), 0xbb5ab70ecdd23bfeULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndFunction(0xc954de9b8fb3e5e2ULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + StartFunction(Eq("function 2"), 0xc954de9b8fb3e5e2ULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndFunction(0xc954de9b8fb3e5e2ULL + 0xc1ab)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + StartFunction(Eq("function 3"), 0xdff98c9a35386e1fULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndFunction(0xfdacb856e78bbf57ULL)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndCompilationUnit(0xfdacb856e78bbf57ULL)) + .WillOnce(Return(true)); + } + + ASSERT_TRUE(ApplyHandlerToMockStabsData()); +} + +// On Mac OS X, SLINE records can appear before the FUN stab to which they +// belong, and their values are absolute addresses, not offsets. +TEST_F(Stabs, LeadingLine) { + stabs.set_endianness(kBigEndian); + stabs.set_value_size(4); + stabs + .Stab(N_SO, 179, 27357, 0x8adabc15, "build directory/") + .Stab(N_SO, 52, 53058, 0x4c7e3bf4, "compilation unit") + .Stab(N_SOL, 165, 12086, 0x6a797ca3, "source file name") + .Stab(N_SLINE, 229, 20015, 0x4cb3d7e0, "") + .Stab(N_SLINE, 89, 43802, 0x4cba8b88, "") + .Stab(N_FUN, 251, 51639, 0xce1b98fa, "rutabaga") + .Stab(N_FUN, 218, 16113, 0x5798, "") + .Stab(N_SO, 52, 53058, 0xd4af4415, ""); + + { + InSequence s; + EXPECT_CALL(mock_handler, + StartCompilationUnit(StrEq("compilation unit"), + 0x4c7e3bf4, StrEq("build directory/"))) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + StartFunction(Eq("rutabaga"), 0xce1b98fa)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + Line(0x4cb3d7e0, StrEq("source file name"), 20015)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + Line(0x4cba8b88, StrEq("source file name"), 43802)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndFunction(0xce1b98fa + 0x5798)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, EndCompilationUnit(0xd4af4415)) + .WillOnce(Return(true)); + } + + ASSERT_TRUE(ApplyHandlerToMockStabsData()); +} + + +#if defined(HAVE_MACH_O_NLIST_H) +// These tests have no meaning on non-Mach-O-based systems, as +// only Mach-O uses N_SECT to represent public symbols. +TEST_F(Stabs, OnePublicSymbol) { + stabs.set_endianness(kLittleEndian); + stabs.set_value_size(4); + + const uint32_t kExpectedAddress = 0x9000; + const string kExpectedFunctionName("public_function"); + stabs + .Stab(N_SECT, 1, 0, kExpectedAddress, kExpectedFunctionName); + + { + InSequence s; + EXPECT_CALL(mock_handler, + Extern(StrEq(kExpectedFunctionName), + kExpectedAddress)) + .WillOnce(Return(true)); + } + ASSERT_TRUE(ApplyHandlerToMockStabsData()); +} + +TEST_F(Stabs, TwoPublicSymbols) { + stabs.set_endianness(kLittleEndian); + stabs.set_value_size(4); + + const uint32_t kExpectedAddress1 = 0xB0B0B0B0; + const string kExpectedFunctionName1("public_function"); + const uint32_t kExpectedAddress2 = 0xF0F0F0F0; + const string kExpectedFunctionName2("something else"); + stabs + .Stab(N_SECT, 1, 0, kExpectedAddress1, kExpectedFunctionName1) + .Stab(N_SECT, 1, 0, kExpectedAddress2, kExpectedFunctionName2); + + { + InSequence s; + EXPECT_CALL(mock_handler, + Extern(StrEq(kExpectedFunctionName1), + kExpectedAddress1)) + .WillOnce(Return(true)); + EXPECT_CALL(mock_handler, + Extern(StrEq(kExpectedFunctionName2), + kExpectedAddress2)) + .WillOnce(Return(true)); + } + ASSERT_TRUE(ApplyHandlerToMockStabsData()); +} + +#endif + +} // anonymous namespace diff --git a/3rdParty/Breakpad/src/common/stabs_to_module.cc b/3rdParty/Breakpad/src/common/stabs_to_module.cc index e59aebd..0a83cf2 100644 --- a/3rdParty/Breakpad/src/common/stabs_to_module.cc +++ b/3rdParty/Breakpad/src/common/stabs_to_module.cc @@ -90,9 +90,7 @@ bool StabsToModule::EndCompilationUnit(uint64_t address) { bool StabsToModule::StartFunction(const string &name, uint64_t address) { assert(!current_function_); - Module::Function *f = new Module::Function; - f->name = Demangle(name); - f->address = address; + Module::Function *f = new Module::Function(Demangle(name), address); f->size = 0; // We compute this in StabsToModule::Finalize(). f->parameter_size = 0; // We don't provide this information. current_function_ = f; @@ -133,7 +131,7 @@ bool StabsToModule::Line(uint64_t address, const char *name, int number) { } bool StabsToModule::Extern(const string &name, uint64_t address) { - Module::Extern *ext = new Module::Extern; + Module::Extern *ext = new Module::Extern(address); // Older libstdc++ demangle implementations can crash on unexpected // input, so be careful about what gets passed in. if (name.compare(0, 3, "__Z") == 0) { @@ -143,7 +141,6 @@ bool StabsToModule::Extern(const string &name, uint64_t address) { } else { ext->name = name; } - ext->address = address; module_->AddExtern(ext); return true; } diff --git a/3rdParty/Breakpad/src/common/stabs_to_module_unittest.cc b/3rdParty/Breakpad/src/common/stabs_to_module_unittest.cc new file mode 100644 index 0000000..d445d1d --- /dev/null +++ b/3rdParty/Breakpad/src/common/stabs_to_module_unittest.cc @@ -0,0 +1,258 @@ +// Copyright (c) 2010 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// dump_stabs_unittest.cc: Unit tests for StabsToModule. + +#include <vector> + +#include "breakpad_googletest_includes.h" +#include "common/stabs_to_module.h" + +using google_breakpad::Module; +using google_breakpad::StabsToModule; +using std::vector; + +TEST(StabsToModule, SimpleCU) { + Module m("name", "os", "arch", "id"); + StabsToModule h(&m); + + // Feed in a simple compilation unit that defines a function with + // one line. + EXPECT_TRUE(h.StartCompilationUnit("compilation-unit", 0x9f4d1271e50db93bLL, + "build-directory")); + EXPECT_TRUE(h.StartFunction("function", 0xfde4abbed390c394LL)); + EXPECT_TRUE(h.Line(0xfde4abbed390c394LL, "source-file-name", 174823314)); + EXPECT_TRUE(h.EndFunction(0xfde4abbed390c3a4LL)); + EXPECT_TRUE(h.EndCompilationUnit(0xfee4abbed390c3a4LL)); + h.Finalize(); + + // Now check to see what has been added to the Module. + Module::File *file = m.FindExistingFile("source-file-name"); + ASSERT_TRUE(file != NULL); + + vector<Module::Function *> functions; + m.GetFunctions(&functions, functions.end()); + ASSERT_EQ((size_t) 1, functions.size()); + Module::Function *function = functions[0]; + EXPECT_STREQ("function", function->name.c_str()); + EXPECT_EQ(0xfde4abbed390c394LL, function->address); + EXPECT_EQ(0x10U, function->size); + EXPECT_EQ(0U, function->parameter_size); + ASSERT_EQ((size_t) 1, function->lines.size()); + Module::Line *line = &function->lines[0]; + EXPECT_EQ(0xfde4abbed390c394LL, line->address); + EXPECT_EQ(0x10U, line->size); // derived from EndFunction + EXPECT_TRUE(line->file == file); + EXPECT_EQ(174823314, line->number); +} + +#ifdef __GNUC__ +// Function name mangling can vary by compiler, so only run mangled-name +// tests on GCC for simplicity's sake. +TEST(StabsToModule, Externs) { + Module m("name", "os", "arch", "id"); + StabsToModule h(&m); + + // Feed in a few Extern symbols. + EXPECT_TRUE(h.Extern("_foo", 0xffff)); + EXPECT_TRUE(h.Extern("__Z21dyldGlobalLockAcquirev", 0xaaaa)); + EXPECT_TRUE(h.Extern("_MorphTableGetNextMorphChain", 0x1111)); + h.Finalize(); + + // Now check to see what has been added to the Module. + vector<Module::Extern *> externs; + m.GetExterns(&externs, externs.end()); + ASSERT_EQ((size_t) 3, externs.size()); + Module::Extern *extern1 = externs[0]; + EXPECT_STREQ("MorphTableGetNextMorphChain", extern1->name.c_str()); + EXPECT_EQ((Module::Address)0x1111, extern1->address); + Module::Extern *extern2 = externs[1]; + EXPECT_STREQ("dyldGlobalLockAcquire()", extern2->name.c_str()); + EXPECT_EQ((Module::Address)0xaaaa, extern2->address); + Module::Extern *extern3 = externs[2]; + EXPECT_STREQ("foo", extern3->name.c_str()); + EXPECT_EQ((Module::Address)0xffff, extern3->address); +} +#endif // __GNUC__ + +TEST(StabsToModule, DuplicateFunctionNames) { + Module m("name", "os", "arch", "id"); + StabsToModule h(&m); + + // Compilation unit with one function, mangled name. + EXPECT_TRUE(h.StartCompilationUnit("compilation-unit", 0xf2cfda36ecf7f46cLL, + "build-directory")); + EXPECT_TRUE(h.StartFunction("funcfoo", + 0xf2cfda36ecf7f46dLL)); + EXPECT_TRUE(h.EndFunction(0)); + EXPECT_TRUE(h.StartFunction("funcfoo", + 0xf2cfda36ecf7f46dLL)); + EXPECT_TRUE(h.EndFunction(0)); + EXPECT_TRUE(h.EndCompilationUnit(0)); + + h.Finalize(); + + // Now check to see what has been added to the Module. + Module::File *file = m.FindExistingFile("compilation-unit"); + ASSERT_TRUE(file != NULL); + + vector<Module::Function *> functions; + m.GetFunctions(&functions, functions.end()); + ASSERT_EQ(1U, functions.size()); + + Module::Function *function = functions[0]; + EXPECT_EQ(0xf2cfda36ecf7f46dLL, function->address); + EXPECT_LT(0U, function->size); // should have used dummy size + EXPECT_EQ(0U, function->parameter_size); + ASSERT_EQ(0U, function->lines.size()); +} + +TEST(InferSizes, LineSize) { + Module m("name", "os", "arch", "id"); + StabsToModule h(&m); + + // Feed in a simple compilation unit that defines a function with + // one line. + EXPECT_TRUE(h.StartCompilationUnit("compilation-unit", 0xb4513962eff94e92LL, + "build-directory")); + EXPECT_TRUE(h.StartFunction("function", 0xb4513962eff94e92LL)); + EXPECT_TRUE(h.Line(0xb4513962eff94e92LL, "source-file-name-1", 77396614)); + EXPECT_TRUE(h.Line(0xb4513963eff94e92LL, "source-file-name-2", 87660088)); + EXPECT_TRUE(h.EndFunction(0)); // unknown function end address + EXPECT_TRUE(h.EndCompilationUnit(0)); // unknown CU end address + EXPECT_TRUE(h.StartCompilationUnit("compilation-unit-2", 0xb4523963eff94e92LL, + "build-directory-2")); // next boundary + EXPECT_TRUE(h.EndCompilationUnit(0)); + h.Finalize(); + + // Now check to see what has been added to the Module. + Module::File *file1 = m.FindExistingFile("source-file-name-1"); + ASSERT_TRUE(file1 != NULL); + Module::File *file2 = m.FindExistingFile("source-file-name-2"); + ASSERT_TRUE(file2 != NULL); + + vector<Module::Function *> functions; + m.GetFunctions(&functions, functions.end()); + ASSERT_EQ((size_t) 1, functions.size()); + + Module::Function *function = functions[0]; + EXPECT_STREQ("function", function->name.c_str()); + EXPECT_EQ(0xb4513962eff94e92LL, function->address); + EXPECT_EQ(0x1000100000000ULL, function->size); // inferred from CU end + EXPECT_EQ(0U, function->parameter_size); + ASSERT_EQ((size_t) 2, function->lines.size()); + + Module::Line *line1 = &function->lines[0]; + EXPECT_EQ(0xb4513962eff94e92LL, line1->address); + EXPECT_EQ(0x100000000ULL, line1->size); // derived from EndFunction + EXPECT_TRUE(line1->file == file1); + EXPECT_EQ(77396614, line1->number); + + Module::Line *line2 = &function->lines[1]; + EXPECT_EQ(0xb4513963eff94e92LL, line2->address); + EXPECT_EQ(0x1000000000000ULL, line2->size); // derived from EndFunction + EXPECT_TRUE(line2->file == file2); + EXPECT_EQ(87660088, line2->number); +} + +#ifdef __GNUC__ +// Function name mangling can vary by compiler, so only run mangled-name +// tests on GCC for simplicity's sake. +TEST(FunctionNames, Mangled) { + Module m("name", "os", "arch", "id"); + StabsToModule h(&m); + + // Compilation unit with one function, mangled name. + EXPECT_TRUE(h.StartCompilationUnit("compilation-unit", 0xf2cfda63cef7f46cLL, + "build-directory")); + EXPECT_TRUE(h.StartFunction("_ZNSt6vectorIySaIyEE9push_backERKy", + 0xf2cfda63cef7f46dLL)); + EXPECT_TRUE(h.EndFunction(0)); + EXPECT_TRUE(h.EndCompilationUnit(0)); + + h.Finalize(); + + // Now check to see what has been added to the Module. + Module::File *file = m.FindExistingFile("compilation-unit"); + ASSERT_TRUE(file != NULL); + + vector<Module::Function *> functions; + m.GetFunctions(&functions, functions.end()); + ASSERT_EQ(1U, functions.size()); + + Module::Function *function = functions[0]; + // This is GCC-specific, but we shouldn't be seeing STABS data anywhere + // but Linux. + EXPECT_STREQ("std::vector<unsigned long long, " + "std::allocator<unsigned long long> >::" + "push_back(unsigned long long const&)", + function->name.c_str()); + EXPECT_EQ(0xf2cfda63cef7f46dLL, function->address); + EXPECT_LT(0U, function->size); // should have used dummy size + EXPECT_EQ(0U, function->parameter_size); + ASSERT_EQ(0U, function->lines.size()); +} +#endif // __GNUC__ + +// The GNU toolchain can omit functions that are not used; however, +// when it does so, it doesn't clean up the debugging information that +// refers to them. In STABS, this results in compilation units whose +// SO addresses are zero. +TEST(Omitted, Function) { + Module m("name", "os", "arch", "id"); + StabsToModule h(&m); + + // The StartCompilationUnit and EndCompilationUnit calls may both have an + // address of zero if the compilation unit has had sections removed. + EXPECT_TRUE(h.StartCompilationUnit("compilation-unit", 0, "build-directory")); + EXPECT_TRUE(h.StartFunction("function", 0x2a133596)); + EXPECT_TRUE(h.EndFunction(0)); + EXPECT_TRUE(h.EndCompilationUnit(0)); +} + +// TODO --- if we actually cared about STABS. Even without these we've +// got full coverage of non-failure source lines in dump_stabs.cc. + +// Line size from next line +// Line size from function end +// Line size from next function start +// line size from cu end +// line size from next cu start +// fallback size is something plausible + +// function size from function end +// function size from next function start +// function size from cu end +// function size from next cu start +// fallback size is something plausible + +// omitting functions outside the compilation unit's address range +// zero-line, one-line, many-line functions diff --git a/3rdParty/Breakpad/src/common/stdio_wrapper.h b/3rdParty/Breakpad/src/common/stdio_wrapper.h new file mode 100644 index 0000000..a3dd50a --- /dev/null +++ b/3rdParty/Breakpad/src/common/stdio_wrapper.h @@ -0,0 +1,43 @@ +// Copyright (c) 2016, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef GOOGLE_BREAKPAD_COMMON_STDIO_WRAPPER_H +#define GOOGLE_BREAKPAD_COMMON_STDIO_WRAPPER_H + +#include <stdio.h> + +#if defined(_MSC_VER) && MSC_VER < 1900 +#include <basetsd.h> + +#define snprintf _snprintf +typedef SSIZE_T ssize_t; +#endif + + +#endif // GOOGLE_BREAKPAD_COMMON_STDIO_WRAPPER_H diff --git a/3rdParty/Breakpad/src/common/string_conversion.cc b/3rdParty/Breakpad/src/common/string_conversion.cc index 27fb8cd..040d3e8 100644 --- a/3rdParty/Breakpad/src/common/string_conversion.cc +++ b/3rdParty/Breakpad/src/common/string_conversion.cc @@ -30,23 +30,23 @@ #include <string.h> #include "common/convert_UTF.h" +#include "common/scoped_ptr.h" #include "common/string_conversion.h" #include "common/using_std_string.h" -#include "processor/scoped_ptr.h" namespace google_breakpad { using std::vector; -void UTF8ToUTF16(const char *in, vector<u_int16_t> *out) { +void UTF8ToUTF16(const char *in, vector<uint16_t> *out) { size_t source_length = strlen(in); const UTF8 *source_ptr = reinterpret_cast<const UTF8 *>(in); const UTF8 *source_end_ptr = source_ptr + source_length; // Erase the contents and zero fill to the expected size out->clear(); out->insert(out->begin(), source_length, 0); - u_int16_t *target_ptr = &(*out)[0]; - u_int16_t *target_end_ptr = target_ptr + out->capacity() * sizeof(u_int16_t); + uint16_t *target_ptr = &(*out)[0]; + uint16_t *target_end_ptr = target_ptr + out->capacity() * sizeof(uint16_t); ConversionResult result = ConvertUTF8toUTF16(&source_ptr, source_end_ptr, &target_ptr, target_end_ptr, strictConversion); @@ -55,11 +55,11 @@ void UTF8ToUTF16(const char *in, vector<u_int16_t> *out) { out->resize(result == conversionOK ? target_ptr - &(*out)[0] + 1: 0); } -int UTF8ToUTF16Char(const char *in, int in_length, u_int16_t out[2]) { +int UTF8ToUTF16Char(const char *in, int in_length, uint16_t out[2]) { const UTF8 *source_ptr = reinterpret_cast<const UTF8 *>(in); - const UTF8 *source_end_ptr = source_ptr + sizeof(char); - u_int16_t *target_ptr = out; - u_int16_t *target_end_ptr = target_ptr + 2 * sizeof(u_int16_t); + const UTF8 *source_end_ptr = source_ptr + 1; + uint16_t *target_ptr = out; + uint16_t *target_end_ptr = target_ptr + 2; out[0] = out[1] = 0; // Process one character at a time @@ -82,15 +82,15 @@ int UTF8ToUTF16Char(const char *in, int in_length, u_int16_t out[2]) { return 0; } -void UTF32ToUTF16(const wchar_t *in, vector<u_int16_t> *out) { +void UTF32ToUTF16(const wchar_t *in, vector<uint16_t> *out) { size_t source_length = wcslen(in); const UTF32 *source_ptr = reinterpret_cast<const UTF32 *>(in); const UTF32 *source_end_ptr = source_ptr + source_length; // Erase the contents and zero fill to the expected size out->clear(); out->insert(out->begin(), source_length, 0); - u_int16_t *target_ptr = &(*out)[0]; - u_int16_t *target_end_ptr = target_ptr + out->capacity() * sizeof(u_int16_t); + uint16_t *target_ptr = &(*out)[0]; + uint16_t *target_end_ptr = target_ptr + out->capacity() * sizeof(uint16_t); ConversionResult result = ConvertUTF32toUTF16(&source_ptr, source_end_ptr, &target_ptr, target_end_ptr, strictConversion); @@ -99,11 +99,11 @@ void UTF32ToUTF16(const wchar_t *in, vector<u_int16_t> *out) { out->resize(result == conversionOK ? target_ptr - &(*out)[0] + 1: 0); } -void UTF32ToUTF16Char(wchar_t in, u_int16_t out[2]) { +void UTF32ToUTF16Char(wchar_t in, uint16_t out[2]) { const UTF32 *source_ptr = reinterpret_cast<const UTF32 *>(&in); const UTF32 *source_end_ptr = source_ptr + 1; - u_int16_t *target_ptr = out; - u_int16_t *target_end_ptr = target_ptr + 2 * sizeof(u_int16_t); + uint16_t *target_ptr = out; + uint16_t *target_end_ptr = target_ptr + 2; out[0] = out[1] = 0; ConversionResult result = ConvertUTF32toUTF16(&source_ptr, source_end_ptr, &target_ptr, target_end_ptr, @@ -114,20 +114,20 @@ void UTF32ToUTF16Char(wchar_t in, u_int16_t out[2]) { } } -static inline u_int16_t Swap(u_int16_t value) { - return (value >> 8) | (value << 8); +static inline uint16_t Swap(uint16_t value) { + return (value >> 8) | static_cast<uint16_t>(value << 8); } -string UTF16ToUTF8(const vector<u_int16_t> &in, bool swap) { +string UTF16ToUTF8(const vector<uint16_t> &in, bool swap) { const UTF16 *source_ptr = &in[0]; - scoped_ptr<u_int16_t> source_buffer; + scoped_array<uint16_t> source_buffer; // If we're to swap, we need to make a local copy and swap each byte pair if (swap) { int idx = 0; - source_buffer.reset(new u_int16_t[in.size()]); + source_buffer.reset(new uint16_t[in.size()]); UTF16 *source_buffer_ptr = source_buffer.get(); - for (vector<u_int16_t>::const_iterator it = in.begin(); + for (vector<uint16_t>::const_iterator it = in.begin(); it != in.end(); ++it, ++idx) source_buffer_ptr[idx] = Swap(*it); @@ -140,7 +140,7 @@ string UTF16ToUTF8(const vector<u_int16_t> &in, bool swap) { scoped_array<UTF8> target_buffer(new UTF8[target_capacity]); UTF8 *target_ptr = target_buffer.get(); UTF8 *target_end_ptr = target_ptr + target_capacity; - ConversionResult result = ConvertUTF16toUTF8(&source_ptr, source_end_ptr, + ConversionResult result = ConvertUTF16toUTF8(&source_ptr, source_end_ptr, &target_ptr, target_end_ptr, strictConversion); diff --git a/3rdParty/Breakpad/src/common/string_conversion.h b/3rdParty/Breakpad/src/common/string_conversion.h index eeed4d2..b9ba96a 100644 --- a/3rdParty/Breakpad/src/common/string_conversion.h +++ b/3rdParty/Breakpad/src/common/string_conversion.h @@ -44,24 +44,24 @@ using std::vector; // Convert |in| to UTF-16 into |out|. Use platform byte ordering. If the // conversion failed, |out| will be zero length. -void UTF8ToUTF16(const char *in, vector<u_int16_t> *out); +void UTF8ToUTF16(const char *in, vector<uint16_t> *out); // Convert at least one character (up to a maximum of |in_length|) from |in| // to UTF-16 into |out|. Return the number of characters consumed from |in|. // Any unused characters in |out| will be initialized to 0. No memory will // be allocated by this routine. -int UTF8ToUTF16Char(const char *in, int in_length, u_int16_t out[2]); +int UTF8ToUTF16Char(const char *in, int in_length, uint16_t out[2]); // Convert |in| to UTF-16 into |out|. Use platform byte ordering. If the // conversion failed, |out| will be zero length. -void UTF32ToUTF16(const wchar_t *in, vector<u_int16_t> *out); +void UTF32ToUTF16(const wchar_t *in, vector<uint16_t> *out); // Convert |in| to UTF-16 into |out|. Any unused characters in |out| will be // initialized to 0. No memory will be allocated by this routine. -void UTF32ToUTF16Char(wchar_t in, u_int16_t out[2]); +void UTF32ToUTF16Char(wchar_t in, uint16_t out[2]); // Convert |in| to UTF-8. If |swap| is true, swap bytes before converting. -string UTF16ToUTF8(const vector<u_int16_t> &in, bool swap); +string UTF16ToUTF8(const vector<uint16_t> &in, bool swap); } // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/common/symbol_data.h b/3rdParty/Breakpad/src/common/symbol_data.h new file mode 100644 index 0000000..2cf15a8 --- /dev/null +++ b/3rdParty/Breakpad/src/common/symbol_data.h @@ -0,0 +1,42 @@ +// -*- mode: c++ -*- + +// Copyright (c) 2013 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef COMMON_SYMBOL_DATA_H_ +#define COMMON_SYMBOL_DATA_H_ + +// Control what data is used from the symbol file. +enum SymbolData { + ALL_SYMBOL_DATA, + NO_CFI, + ONLY_CFI +}; + +#endif // COMMON_SYMBOL_DATA_H_ diff --git a/3rdParty/Breakpad/src/common/test_assembler.cc b/3rdParty/Breakpad/src/common/test_assembler.cc new file mode 100644 index 0000000..1e783b4 --- /dev/null +++ b/3rdParty/Breakpad/src/common/test_assembler.cc @@ -0,0 +1,359 @@ +// Copyright (c) 2010, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// test_assembler.cc: Implementation of google_breakpad::TestAssembler. +// See test_assembler.h for details. + +#include "common/test_assembler.h" + +#include <assert.h> +#include <stdio.h> + +#include <iterator> + +namespace google_breakpad { +namespace test_assembler { + +using std::back_insert_iterator; + +Label::Label() : value_(new Binding()) { } +Label::Label(uint64_t value) : value_(new Binding(value)) { } +Label::Label(const Label &label) { + value_ = label.value_; + value_->Acquire(); +} +Label::~Label() { + if (value_->Release()) delete value_; +} + +Label &Label::operator=(uint64_t value) { + value_->Set(NULL, value); + return *this; +} + +Label &Label::operator=(const Label &label) { + value_->Set(label.value_, 0); + return *this; +} + +Label Label::operator+(uint64_t addend) const { + Label l; + l.value_->Set(this->value_, addend); + return l; +} + +Label Label::operator-(uint64_t subtrahend) const { + Label l; + l.value_->Set(this->value_, -subtrahend); + return l; +} + +// When NDEBUG is #defined, assert doesn't evaluate its argument. This +// means you can't simply use assert to check the return value of a +// function with necessary side effects. +// +// ALWAYS_EVALUATE_AND_ASSERT(x) evaluates x regardless of whether +// NDEBUG is #defined; when NDEBUG is not #defined, it further asserts +// that x is true. +#ifdef NDEBUG +#define ALWAYS_EVALUATE_AND_ASSERT(x) x +#else +#define ALWAYS_EVALUATE_AND_ASSERT(x) assert(x) +#endif + +uint64_t Label::operator-(const Label &label) const { + uint64_t offset; + ALWAYS_EVALUATE_AND_ASSERT(IsKnownOffsetFrom(label, &offset)); + return offset; +} + +uint64_t Label::Value() const { + uint64_t v = 0; + ALWAYS_EVALUATE_AND_ASSERT(IsKnownConstant(&v)); + return v; +}; + +bool Label::IsKnownConstant(uint64_t *value_p) const { + Binding *base; + uint64_t addend; + value_->Get(&base, &addend); + if (base != NULL) return false; + if (value_p) *value_p = addend; + return true; +} + +bool Label::IsKnownOffsetFrom(const Label &label, uint64_t *offset_p) const +{ + Binding *label_base, *this_base; + uint64_t label_addend, this_addend; + label.value_->Get(&label_base, &label_addend); + value_->Get(&this_base, &this_addend); + // If this and label are related, Get will find their final + // common ancestor, regardless of how indirect the relation is. This + // comparison also handles the constant vs. constant case. + if (this_base != label_base) return false; + if (offset_p) *offset_p = this_addend - label_addend; + return true; +} + +Label::Binding::Binding() : base_(this), addend_(), reference_count_(1) { } + +Label::Binding::Binding(uint64_t addend) + : base_(NULL), addend_(addend), reference_count_(1) { } + +Label::Binding::~Binding() { + assert(reference_count_ == 0); + if (base_ && base_ != this && base_->Release()) + delete base_; +} + +void Label::Binding::Set(Binding *binding, uint64_t addend) { + if (!base_ && !binding) { + // We're equating two constants. This could be okay. + assert(addend_ == addend); + } else if (!base_) { + // We are a known constant, but BINDING may not be, so turn the + // tables and try to set BINDING's value instead. + binding->Set(NULL, addend_ - addend); + } else { + if (binding) { + // Find binding's final value. Since the final value is always either + // completely unconstrained or a constant, never a reference to + // another variable (otherwise, it wouldn't be final), this + // guarantees we won't create cycles here, even for code like this: + // l = m, m = n, n = l; + uint64_t binding_addend; + binding->Get(&binding, &binding_addend); + addend += binding_addend; + } + + // It seems likely that setting a binding to itself is a bug + // (although I can imagine this might turn out to be helpful to + // permit). + assert(binding != this); + + if (base_ != this) { + // Set the other bindings on our chain as well. Note that this + // is sufficient even though binding relationships form trees: + // All binding operations traverse their chains to the end, and + // all bindings related to us share some tail of our chain, so + // they will see the changes we make here. + base_->Set(binding, addend - addend_); + // We're not going to use base_ any more. + if (base_->Release()) delete base_; + } + + // Adopt BINDING as our base. Note that it should be correct to + // acquire here, after the release above, even though the usual + // reference-counting rules call for acquiring first, and then + // releasing: the self-reference assertion above should have + // complained if BINDING were 'this' or anywhere along our chain, + // so we didn't release BINDING. + if (binding) binding->Acquire(); + base_ = binding; + addend_ = addend; + } +} + +void Label::Binding::Get(Binding **base, uint64_t *addend) { + if (base_ && base_ != this) { + // Recurse to find the end of our reference chain (the root of our + // tree), and then rewrite every binding along the chain to refer + // to it directly, adjusting addends appropriately. (This is why + // this member function isn't this-const.) + Binding *final_base; + uint64_t final_addend; + base_->Get(&final_base, &final_addend); + if (final_base) final_base->Acquire(); + if (base_->Release()) delete base_; + base_ = final_base; + addend_ += final_addend; + } + *base = base_; + *addend = addend_; +} + +template<typename Inserter> +static inline void InsertEndian(test_assembler::Endianness endianness, + size_t size, uint64_t number, Inserter dest) { + assert(size > 0); + if (endianness == kLittleEndian) { + for (size_t i = 0; i < size; i++) { + *dest++ = (char) (number & 0xff); + number >>= 8; + } + } else { + assert(endianness == kBigEndian); + // The loop condition is odd, but it's correct for size_t. + for (size_t i = size - 1; i < size; i--) + *dest++ = (char) ((number >> (i * 8)) & 0xff); + } +} + +Section &Section::Append(Endianness endianness, size_t size, uint64_t number) { + InsertEndian(endianness, size, number, + back_insert_iterator<string>(contents_)); + return *this; +} + +Section &Section::Append(Endianness endianness, size_t size, + const Label &label) { + // If this label's value is known, there's no reason to waste an + // entry in references_ on it. + uint64_t value; + if (label.IsKnownConstant(&value)) + return Append(endianness, size, value); + + // This will get caught when the references are resolved, but it's + // nicer to find out earlier. + assert(endianness != kUnsetEndian); + + references_.push_back(Reference(contents_.size(), endianness, size, label)); + contents_.append(size, 0); + return *this; +} + +#define ENDIANNESS_L kLittleEndian +#define ENDIANNESS_B kBigEndian +#define ENDIANNESS(e) ENDIANNESS_ ## e + +#define DEFINE_SHORT_APPEND_NUMBER_ENDIAN(e, bits) \ + Section &Section::e ## bits(uint ## bits ## _t v) { \ + InsertEndian(ENDIANNESS(e), bits / 8, v, \ + back_insert_iterator<string>(contents_)); \ + return *this; \ + } + +#define DEFINE_SHORT_APPEND_LABEL_ENDIAN(e, bits) \ + Section &Section::e ## bits(const Label &v) { \ + return Append(ENDIANNESS(e), bits / 8, v); \ + } + +// Define L16, B32, and friends. +#define DEFINE_SHORT_APPEND_ENDIAN(e, bits) \ + DEFINE_SHORT_APPEND_NUMBER_ENDIAN(e, bits) \ + DEFINE_SHORT_APPEND_LABEL_ENDIAN(e, bits) + +DEFINE_SHORT_APPEND_LABEL_ENDIAN(L, 8); +DEFINE_SHORT_APPEND_LABEL_ENDIAN(B, 8); +DEFINE_SHORT_APPEND_ENDIAN(L, 16); +DEFINE_SHORT_APPEND_ENDIAN(L, 32); +DEFINE_SHORT_APPEND_ENDIAN(L, 64); +DEFINE_SHORT_APPEND_ENDIAN(B, 16); +DEFINE_SHORT_APPEND_ENDIAN(B, 32); +DEFINE_SHORT_APPEND_ENDIAN(B, 64); + +#define DEFINE_SHORT_APPEND_NUMBER_DEFAULT(bits) \ + Section &Section::D ## bits(uint ## bits ## _t v) { \ + InsertEndian(endianness_, bits / 8, v, \ + back_insert_iterator<string>(contents_)); \ + return *this; \ + } +#define DEFINE_SHORT_APPEND_LABEL_DEFAULT(bits) \ + Section &Section::D ## bits(const Label &v) { \ + return Append(endianness_, bits / 8, v); \ + } +#define DEFINE_SHORT_APPEND_DEFAULT(bits) \ + DEFINE_SHORT_APPEND_NUMBER_DEFAULT(bits) \ + DEFINE_SHORT_APPEND_LABEL_DEFAULT(bits) + +DEFINE_SHORT_APPEND_LABEL_DEFAULT(8) +DEFINE_SHORT_APPEND_DEFAULT(16); +DEFINE_SHORT_APPEND_DEFAULT(32); +DEFINE_SHORT_APPEND_DEFAULT(64); + +Section &Section::Append(const Section §ion) { + size_t base = contents_.size(); + contents_.append(section.contents_); + for (vector<Reference>::const_iterator it = section.references_.begin(); + it != section.references_.end(); it++) + references_.push_back(Reference(base + it->offset, it->endianness, + it->size, it->label)); + return *this; +} + +Section &Section::LEB128(long long value) { + while (value < -0x40 || 0x3f < value) { + contents_ += (value & 0x7f) | 0x80; + if (value < 0) + value = (value >> 7) | ~(((unsigned long long) -1) >> 7); + else + value = (value >> 7); + } + contents_ += value & 0x7f; + return *this; +} + +Section &Section::ULEB128(uint64_t value) { + while (value > 0x7f) { + contents_ += (value & 0x7f) | 0x80; + value = (value >> 7); + } + contents_ += value; + return *this; +} + +Section &Section::Align(size_t alignment, uint8_t pad_byte) { + // ALIGNMENT must be a power of two. + assert(((alignment - 1) & alignment) == 0); + size_t new_size = (contents_.size() + alignment - 1) & ~(alignment - 1); + contents_.append(new_size - contents_.size(), pad_byte); + assert((contents_.size() & (alignment - 1)) == 0); + return *this; +} + +void Section::Clear() { + contents_.clear(); + references_.clear(); +} + +bool Section::GetContents(string *contents) { + // For each label reference, find the label's value, and patch it into + // the section's contents. + for (size_t i = 0; i < references_.size(); i++) { + Reference &r = references_[i]; + uint64_t value; + if (!r.label.IsKnownConstant(&value)) { + fprintf(stderr, "Undefined label #%zu at offset 0x%zx\n", i, r.offset); + return false; + } + assert(r.offset < contents_.size()); + assert(contents_.size() - r.offset >= r.size); + InsertEndian(r.endianness, r.size, value, contents_.begin() + r.offset); + } + contents->clear(); + std::swap(contents_, *contents); + references_.clear(); + return true; +} + +} // namespace test_assembler +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/common/test_assembler.h b/3rdParty/Breakpad/src/common/test_assembler.h new file mode 100644 index 0000000..373dbeb --- /dev/null +++ b/3rdParty/Breakpad/src/common/test_assembler.h @@ -0,0 +1,484 @@ +// -*- mode: C++ -*- + +// Copyright (c) 2010, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// test-assembler.h: interface to class for building complex binary streams. + +// To test the Breakpad symbol dumper and processor thoroughly, for +// all combinations of host system and minidump processor +// architecture, we need to be able to easily generate complex test +// data like debugging information and minidump files. +// +// For example, if we want our unit tests to provide full code +// coverage for stack walking, it may be difficult to persuade the +// compiler to generate every possible sort of stack walking +// information that we want to support; there are probably DWARF CFI +// opcodes that GCC never emits. Similarly, if we want to test our +// error handling, we will need to generate damaged minidumps or +// debugging information that (we hope) the client or compiler will +// never produce on its own. +// +// google_breakpad::TestAssembler provides a predictable and +// (relatively) simple way to generate complex formatted data streams +// like minidumps and CFI. Furthermore, because TestAssembler is +// portable, developers without access to (say) Visual Studio or a +// SPARC assembler can still work on test data for those targets. + +#ifndef PROCESSOR_TEST_ASSEMBLER_H_ +#define PROCESSOR_TEST_ASSEMBLER_H_ + +#include <list> +#include <vector> +#include <string> + +#include "common/using_std_string.h" +#include "google_breakpad/common/breakpad_types.h" + +namespace google_breakpad { + +using std::list; +using std::vector; + +namespace test_assembler { + +// A Label represents a value not yet known that we need to store in a +// section. As long as all the labels a section refers to are defined +// by the time we retrieve its contents as bytes, we can use undefined +// labels freely in that section's construction. +// +// A label can be in one of three states: +// - undefined, +// - defined as the sum of some other label and a constant, or +// - a constant. +// +// A label's value never changes, but it can accumulate constraints. +// Adding labels and integers is permitted, and yields a label. +// Subtracting a constant from a label is permitted, and also yields a +// label. Subtracting two labels that have some relationship to each +// other is permitted, and yields a constant. +// +// For example: +// +// Label a; // a's value is undefined +// Label b; // b's value is undefined +// { +// Label c = a + 4; // okay, even though a's value is unknown +// b = c + 4; // also okay; b is now a+8 +// } +// Label d = b - 2; // okay; d == a+6, even though c is gone +// d.Value(); // error: d's value is not yet known +// d - a; // is 6, even though their values are not known +// a = 12; // now b == 20, and d == 18 +// d.Value(); // 18: no longer an error +// b.Value(); // 20 +// d = 10; // error: d is already defined. +// +// Label objects' lifetimes are unconstrained: notice that, in the +// above example, even though a and b are only related through c, and +// c goes out of scope, the assignment to a sets b's value as well. In +// particular, it's not necessary to ensure that a Label lives beyond +// Sections that refer to it. +class Label { + public: + Label(); // An undefined label. + Label(uint64_t value); // A label with a fixed value + Label(const Label &value); // A label equal to another. + ~Label(); + + // Return this label's value; it must be known. + // + // Providing this as a cast operator is nifty, but the conversions + // happen in unexpected places. In particular, ISO C++ says that + // Label + size_t becomes ambigious, because it can't decide whether + // to convert the Label to a uint64_t and then to a size_t, or use + // the overloaded operator that returns a new label, even though the + // former could fail if the label is not yet defined and the latter won't. + uint64_t Value() const; + + Label &operator=(uint64_t value); + Label &operator=(const Label &value); + Label operator+(uint64_t addend) const; + Label operator-(uint64_t subtrahend) const; + uint64_t operator-(const Label &subtrahend) const; + + // We could also provide == and != that work on undefined, but + // related, labels. + + // Return true if this label's value is known. If VALUE_P is given, + // set *VALUE_P to the known value if returning true. + bool IsKnownConstant(uint64_t *value_p = NULL) const; + + // Return true if the offset from LABEL to this label is known. If + // OFFSET_P is given, set *OFFSET_P to the offset when returning true. + // + // You can think of l.KnownOffsetFrom(m, &d) as being like 'd = l-m', + // except that it also returns a value indicating whether the + // subtraction is possible given what we currently know of l and m. + // It can be possible even if we don't know l and m's values. For + // example: + // + // Label l, m; + // m = l + 10; + // l.IsKnownConstant(); // false + // m.IsKnownConstant(); // false + // uint64_t d; + // l.IsKnownOffsetFrom(m, &d); // true, and sets d to -10. + // l-m // -10 + // m-l // 10 + // m.Value() // error: m's value is not known + bool IsKnownOffsetFrom(const Label &label, uint64_t *offset_p = NULL) const; + + private: + // A label's value, or if that is not yet known, how the value is + // related to other labels' values. A binding may be: + // - a known constant, + // - constrained to be equal to some other binding plus a constant, or + // - unconstrained, and free to take on any value. + // + // Many labels may point to a single binding, and each binding may + // refer to another, so bindings and labels form trees whose leaves + // are labels, whose interior nodes (and roots) are bindings, and + // where links point from children to parents. Bindings are + // reference counted, allowing labels to be lightweight, copyable, + // assignable, placed in containers, and so on. + class Binding { + public: + Binding(); + Binding(uint64_t addend); + ~Binding(); + + // Increment our reference count. + void Acquire() { reference_count_++; }; + // Decrement our reference count, and return true if it is zero. + bool Release() { return --reference_count_ == 0; } + + // Set this binding to be equal to BINDING + ADDEND. If BINDING is + // NULL, then set this binding to the known constant ADDEND. + // Update every binding on this binding's chain to point directly + // to BINDING, or to be a constant, with addends adjusted + // appropriately. + void Set(Binding *binding, uint64_t value); + + // Return what we know about the value of this binding. + // - If this binding's value is a known constant, set BASE to + // NULL, and set ADDEND to its value. + // - If this binding is not a known constant but related to other + // bindings, set BASE to the binding at the end of the relation + // chain (which will always be unconstrained), and set ADDEND to the + // value to add to that binding's value to get this binding's + // value. + // - If this binding is unconstrained, set BASE to this, and leave + // ADDEND unchanged. + void Get(Binding **base, uint64_t *addend); + + private: + // There are three cases: + // + // - A binding representing a known constant value has base_ NULL, + // and addend_ equal to the value. + // + // - A binding representing a completely unconstrained value has + // base_ pointing to this; addend_ is unused. + // + // - A binding whose value is related to some other binding's + // value has base_ pointing to that other binding, and addend_ + // set to the amount to add to that binding's value to get this + // binding's value. We only represent relationships of the form + // x = y+c. + // + // Thus, the bind_ links form a chain terminating in either a + // known constant value or a completely unconstrained value. Most + // operations on bindings do path compression: they change every + // binding on the chain to point directly to the final value, + // adjusting addends as appropriate. + Binding *base_; + uint64_t addend_; + + // The number of Labels and Bindings pointing to this binding. + // (When a binding points to itself, indicating a completely + // unconstrained binding, that doesn't count as a reference.) + int reference_count_; + }; + + // This label's value. + Binding *value_; +}; + +inline Label operator+(uint64_t a, const Label &l) { return l + a; } +// Note that int-Label isn't defined, as negating a Label is not an +// operation we support. + +// Conventions for representing larger numbers as sequences of bytes. +enum Endianness { + kBigEndian, // Big-endian: the most significant byte comes first. + kLittleEndian, // Little-endian: the least significant byte comes first. + kUnsetEndian, // used internally +}; + +// A section is a sequence of bytes, constructed by appending bytes +// to the end. Sections have a convenient and flexible set of member +// functions for appending data in various formats: big-endian and +// little-endian signed and unsigned values of different sizes; +// LEB128 and ULEB128 values (see below), and raw blocks of bytes. +// +// If you need to append a value to a section that is not convenient +// to compute immediately, you can create a label, append the +// label's value to the section, and then set the label's value +// later, when it's convenient to do so. Once a label's value is +// known, the section class takes care of updating all previously +// appended references to it. +// +// Once all the labels to which a section refers have had their +// values determined, you can get a copy of the section's contents +// as a string. +// +// Note that there is no specified "start of section" label. This is +// because there are typically several different meanings for "the +// start of a section": the offset of the section within an object +// file, the address in memory at which the section's content appear, +// and so on. It's up to the code that uses the Section class to +// keep track of these explicitly, as they depend on the application. +class Section { + public: + Section(Endianness endianness = kUnsetEndian) + : endianness_(endianness) { }; + + // A base class destructor should be either public and virtual, + // or protected and nonvirtual. + virtual ~Section() { }; + + // Set the default endianness of this section to ENDIANNESS. This + // sets the behavior of the D<N> appending functions. If the + // assembler's default endianness was set, this is the + void set_endianness(Endianness endianness) { + endianness_ = endianness; + } + + // Return the default endianness of this section. + Endianness endianness() const { return endianness_; } + + // Append the SIZE bytes at DATA or the contents of STRING to the + // end of this section. Return a reference to this section. + Section &Append(const uint8_t *data, size_t size) { + contents_.append(reinterpret_cast<const char *>(data), size); + return *this; + }; + Section &Append(const string &data) { + contents_.append(data); + return *this; + }; + + // Append SIZE copies of BYTE to the end of this section. Return a + // reference to this section. + Section &Append(size_t size, uint8_t byte) { + contents_.append(size, (char) byte); + return *this; + } + + // Append NUMBER to this section. ENDIANNESS is the endianness to + // use to write the number. SIZE is the length of the number in + // bytes. Return a reference to this section. + Section &Append(Endianness endianness, size_t size, uint64_t number); + Section &Append(Endianness endianness, size_t size, const Label &label); + + // Append SECTION to the end of this section. The labels SECTION + // refers to need not be defined yet. + // + // Note that this has no effect on any Labels' values, or on + // SECTION. If placing SECTION within 'this' provides new + // constraints on existing labels' values, then it's up to the + // caller to fiddle with those labels as needed. + Section &Append(const Section §ion); + + // Append the contents of DATA as a series of bytes terminated by + // a NULL character. + Section &AppendCString(const string &data) { + Append(data); + contents_ += '\0'; + return *this; + } + + // Append at most SIZE bytes from DATA; if DATA is less than SIZE bytes + // long, pad with '\0' characters. + Section &AppendCString(const string &data, size_t size) { + contents_.append(data, 0, size); + if (data.size() < size) + Append(size - data.size(), 0); + return *this; + } + + // Append VALUE or LABEL to this section, with the given bit width and + // endianness. Return a reference to this section. + // + // The names of these functions have the form <ENDIANNESS><BITWIDTH>: + // <ENDIANNESS> is either 'L' (little-endian, least significant byte first), + // 'B' (big-endian, most significant byte first), or + // 'D' (default, the section's default endianness) + // <BITWIDTH> is 8, 16, 32, or 64. + // + // Since endianness doesn't matter for a single byte, all the + // <BITWIDTH>=8 functions are equivalent. + // + // These can be used to write both signed and unsigned values, as + // the compiler will properly sign-extend a signed value before + // passing it to the function, at which point the function's + // behavior is the same either way. + Section &L8(uint8_t value) { contents_ += value; return *this; } + Section &B8(uint8_t value) { contents_ += value; return *this; } + Section &D8(uint8_t value) { contents_ += value; return *this; } + Section &L16(uint16_t), &L32(uint32_t), &L64(uint64_t), + &B16(uint16_t), &B32(uint32_t), &B64(uint64_t), + &D16(uint16_t), &D32(uint32_t), &D64(uint64_t); + Section &L8(const Label &label), &L16(const Label &label), + &L32(const Label &label), &L64(const Label &label), + &B8(const Label &label), &B16(const Label &label), + &B32(const Label &label), &B64(const Label &label), + &D8(const Label &label), &D16(const Label &label), + &D32(const Label &label), &D64(const Label &label); + + // Append VALUE in a signed LEB128 (Little-Endian Base 128) form. + // + // The signed LEB128 representation of an integer N is a variable + // number of bytes: + // + // - If N is between -0x40 and 0x3f, then its signed LEB128 + // representation is a single byte whose value is N. + // + // - Otherwise, its signed LEB128 representation is (N & 0x7f) | + // 0x80, followed by the signed LEB128 representation of N / 128, + // rounded towards negative infinity. + // + // In other words, we break VALUE into groups of seven bits, put + // them in little-endian order, and then write them as eight-bit + // bytes with the high bit on all but the last. + // + // Note that VALUE cannot be a Label (we would have to implement + // relaxation). + Section &LEB128(long long value); + + // Append VALUE in unsigned LEB128 (Little-Endian Base 128) form. + // + // The unsigned LEB128 representation of an integer N is a variable + // number of bytes: + // + // - If N is between 0 and 0x7f, then its unsigned LEB128 + // representation is a single byte whose value is N. + // + // - Otherwise, its unsigned LEB128 representation is (N & 0x7f) | + // 0x80, followed by the unsigned LEB128 representation of N / + // 128, rounded towards negative infinity. + // + // Note that VALUE cannot be a Label (we would have to implement + // relaxation). + Section &ULEB128(uint64_t value); + + // Jump to the next location aligned on an ALIGNMENT-byte boundary, + // relative to the start of the section. Fill the gap with PAD_BYTE. + // ALIGNMENT must be a power of two. Return a reference to this + // section. + Section &Align(size_t alignment, uint8_t pad_byte = 0); + + // Clear the contents of this section. + void Clear(); + + // Return the current size of the section. + size_t Size() const { return contents_.size(); } + + // Return a label representing the start of the section. + // + // It is up to the user whether this label represents the section's + // position in an object file, the section's address in memory, or + // what have you; some applications may need both, in which case + // this simple-minded interface won't be enough. This class only + // provides a single start label, for use with the Here and Mark + // member functions. + // + // Ideally, we'd provide this in a subclass that actually knows more + // about the application at hand and can provide an appropriate + // collection of start labels. But then the appending member + // functions like Append and D32 would return a reference to the + // base class, not the derived class, and the chaining won't work. + // Since the only value here is in pretty notation, that's a fatal + // flaw. + Label start() const { return start_; } + + // Return a label representing the point at which the next Appended + // item will appear in the section, relative to start(). + Label Here() const { return start_ + Size(); } + + // Set *LABEL to Here, and return a reference to this section. + Section &Mark(Label *label) { *label = Here(); return *this; } + + // If there are no undefined label references left in this + // section, set CONTENTS to the contents of this section, as a + // string, and clear this section. Return true on success, or false + // if there were still undefined labels. + bool GetContents(string *contents); + + private: + // Used internally. A reference to a label's value. + struct Reference { + Reference(size_t set_offset, Endianness set_endianness, size_t set_size, + const Label &set_label) + : offset(set_offset), endianness(set_endianness), size(set_size), + label(set_label) { } + + // The offset of the reference within the section. + size_t offset; + + // The endianness of the reference. + Endianness endianness; + + // The size of the reference. + size_t size; + + // The label to which this is a reference. + Label label; + }; + + // The default endianness of this section. + Endianness endianness_; + + // The contents of the section. + string contents_; + + // References to labels within those contents. + vector<Reference> references_; + + // A label referring to the beginning of the section. + Label start_; +}; + +} // namespace test_assembler +} // namespace google_breakpad + +#endif // PROCESSOR_TEST_ASSEMBLER_H_ diff --git a/3rdParty/Breakpad/src/common/test_assembler_unittest.cc b/3rdParty/Breakpad/src/common/test_assembler_unittest.cc new file mode 100644 index 0000000..94b5a5c --- /dev/null +++ b/3rdParty/Breakpad/src/common/test_assembler_unittest.cc @@ -0,0 +1,1662 @@ +// Copyright (c) 2010, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// test_assembler_unittest.cc: Unit tests for google_breakpad::TestAssembler. + +#include <string> +#include <string.h> + +#include "breakpad_googletest_includes.h" +#include "common/test_assembler.h" +#include "common/using_std_string.h" + +using google_breakpad::test_assembler::Label; +using google_breakpad::test_assembler::Section; +using google_breakpad::test_assembler::kBigEndian; +using google_breakpad::test_assembler::kLittleEndian; +using testing::Test; + +TEST(ConstructLabel, Simple) { + Label l; +} + +TEST(ConstructLabel, Undefined) { + Label l; + EXPECT_FALSE(l.IsKnownConstant()); +} + +TEST(ConstructLabelDeathTest, Undefined) { + Label l; + ASSERT_DEATH(l.Value(), "IsKnownConstant\\(&v\\)"); +} + +TEST(ConstructLabel, Constant) { + Label l(0x060b9f974eaf301eULL); + uint64_t v; + EXPECT_TRUE(l.IsKnownConstant(&v)); + EXPECT_EQ(v, 0x060b9f974eaf301eULL); + EXPECT_EQ(l.Value(), 0x060b9f974eaf301eULL); +} + +TEST(ConstructLabel, Copy) { + Label l; + Label m(l); + uint64_t v; + EXPECT_TRUE(l.IsKnownOffsetFrom(m, &v)); + EXPECT_EQ(0U, v); +} + +// The left-hand-side of a label assignment can be either +// unconstrained, related, or known. The right-hand-side can be any of +// those, or an integer. +TEST(Assignment, UnconstrainedToUnconstrained) { + Label l, m; + l = m; + EXPECT_EQ(0U, l-m); + EXPECT_TRUE(l.IsKnownOffsetFrom(m)); + uint64_t d; + EXPECT_TRUE(l.IsKnownOffsetFrom(m, &d)); + EXPECT_EQ(0U, d); + EXPECT_FALSE(l.IsKnownConstant()); +} + +TEST(Assignment, UnconstrainedToRelated) { + Label l, m, n; + l = n; + l = m; + EXPECT_EQ(0U, l-m); + EXPECT_TRUE(l.IsKnownOffsetFrom(m)); + uint64_t d; + EXPECT_TRUE(l.IsKnownOffsetFrom(m, &d)); + EXPECT_EQ(0U, d); + EXPECT_FALSE(l.IsKnownConstant()); +} + +TEST(Assignment, UnconstrainedToKnown) { + Label l, m; + l = 0x8fd16e55b20a39c1ULL; + l = m; + EXPECT_EQ(0U, l-m); + EXPECT_TRUE(l.IsKnownOffsetFrom(m)); + uint64_t d; + EXPECT_TRUE(l.IsKnownOffsetFrom(m, &d)); + EXPECT_EQ(0U, d); + EXPECT_TRUE(m.IsKnownConstant()); + EXPECT_EQ(0x8fd16e55b20a39c1ULL, m.Value()); +} + +TEST(Assignment, RelatedToUnconstrained) { + Label l, m, n; + m = n; + l = m; + EXPECT_EQ(0U, l-n); + EXPECT_TRUE(l.IsKnownOffsetFrom(n)); + uint64_t d; + EXPECT_TRUE(l.IsKnownOffsetFrom(n, &d)); + EXPECT_EQ(0U, d); + EXPECT_FALSE(l.IsKnownConstant()); +} + +TEST(Assignment, RelatedToRelated) { + Label l, m, n, o; + l = n; + m = o; + l = m; + EXPECT_EQ(0U, n-o); + EXPECT_TRUE(n.IsKnownOffsetFrom(o)); + uint64_t d; + EXPECT_TRUE(n.IsKnownOffsetFrom(o, &d)); + EXPECT_EQ(0U, d); + EXPECT_FALSE(l.IsKnownConstant()); +} + +TEST(Assignment, RelatedToKnown) { + Label l, m, n; + m = n; + l = 0xd2011f8c82ad56f2ULL; + l = m; + EXPECT_TRUE(l.IsKnownConstant()); + EXPECT_EQ(0xd2011f8c82ad56f2ULL, l.Value()); + EXPECT_TRUE(m.IsKnownConstant()); + EXPECT_EQ(0xd2011f8c82ad56f2ULL, m.Value()); + EXPECT_TRUE(n.IsKnownConstant()); + EXPECT_EQ(0xd2011f8c82ad56f2ULL, n.Value()); +} + +TEST(Assignment, KnownToUnconstrained) { + Label l, m; + m = 0x50b024c0d6073887ULL; + l = m; + EXPECT_TRUE(l.IsKnownConstant()); + EXPECT_EQ(0x50b024c0d6073887ULL, l.Value()); + EXPECT_TRUE(m.IsKnownConstant()); + EXPECT_EQ(0x50b024c0d6073887ULL, m.Value()); +} + +TEST(Assignment, KnownToRelated) { + Label l, m, n; + l = n; + m = 0x5348883655c727e5ULL; + l = m; + EXPECT_TRUE(l.IsKnownConstant()); + EXPECT_EQ(0x5348883655c727e5ULL, l.Value()); + EXPECT_TRUE(m.IsKnownConstant()); + EXPECT_EQ(0x5348883655c727e5ULL, m.Value()); + EXPECT_TRUE(n.IsKnownConstant()); + EXPECT_EQ(0x5348883655c727e5ULL, n.Value()); +} + +TEST(Assignment, KnownToKnown) { + Label l, m; + l = 0x36c209c20987564eULL; + m = 0x36c209c20987564eULL; + l = m; + EXPECT_TRUE(l.IsKnownConstant()); + EXPECT_EQ(0x36c209c20987564eULL, l.Value()); + EXPECT_TRUE(m.IsKnownConstant()); + EXPECT_EQ(0x36c209c20987564eULL, m.Value()); +} + +TEST(Assignment, ConstantToUnconstrained) { + Label l; + l = 0xc02495f4d7f5a957ULL; + EXPECT_TRUE(l.IsKnownConstant()); + EXPECT_EQ(0xc02495f4d7f5a957ULL, l.Value()); +} + +TEST(Assignment, ConstantToRelated) { + Label l, m; + l = m; + l = 0x4577901cf275488dULL; + EXPECT_TRUE(l.IsKnownConstant()); + EXPECT_EQ(0x4577901cf275488dULL, l.Value()); + EXPECT_TRUE(m.IsKnownConstant()); + EXPECT_EQ(0x4577901cf275488dULL, m.Value()); +} + +TEST(Assignment, ConstantToKnown) { + Label l; + l = 0xec0b9c369b7e8ea7ULL; + l = 0xec0b9c369b7e8ea7ULL; + EXPECT_TRUE(l.IsKnownConstant()); + EXPECT_EQ(0xec0b9c369b7e8ea7ULL, l.Value()); +} + +TEST(AssignmentDeathTest, Self) { + Label l; + ASSERT_DEATH(l = l, "binding != this"); +} + +TEST(AssignmentDeathTest, IndirectCycle) { + Label l, m, n; + l = m; + m = n; + ASSERT_DEATH(n = l, "binding != this"); +} + +TEST(AssignmentDeathTest, Cycle) { + Label l, m, n, o; + l = m; + m = n; + o = n; + ASSERT_DEATH(o = l, "binding != this"); +} + +TEST(Addition, LabelConstant) { + Label l, m; + m = l + 0x5248d93e8bbe9497ULL; + EXPECT_TRUE(m.IsKnownOffsetFrom(l)); + uint64_t d; + EXPECT_TRUE(m.IsKnownOffsetFrom(l, &d)); + EXPECT_EQ(0x5248d93e8bbe9497ULL, d); + EXPECT_FALSE(m.IsKnownConstant()); +} + +TEST(Addition, ConstantLabel) { + Label l, m; + m = 0xf51e94e00d6e3c84ULL + l; + EXPECT_TRUE(m.IsKnownOffsetFrom(l)); + uint64_t d; + EXPECT_TRUE(m.IsKnownOffsetFrom(l, &d)); + EXPECT_EQ(0xf51e94e00d6e3c84ULL, d); + EXPECT_FALSE(m.IsKnownConstant()); +} + +TEST(Addition, KnownLabelConstant) { + Label l, m; + l = 0x16286307042ce0d8ULL; + m = l + 0x3fdddd91306719d7ULL; + EXPECT_TRUE(m.IsKnownOffsetFrom(l)); + uint64_t d; + EXPECT_TRUE(m.IsKnownOffsetFrom(l, &d)); + EXPECT_EQ(0x3fdddd91306719d7ULL, d); + EXPECT_TRUE(m.IsKnownConstant()); + EXPECT_EQ(0x16286307042ce0d8ULL + 0x3fdddd91306719d7ULL, m.Value()); +} + +TEST(Addition, ConstantKnownLabel) { + Label l, m; + l = 0x50f62d0cdd1031deULL; + m = 0x1b13462d8577c538ULL + l; + EXPECT_TRUE(m.IsKnownOffsetFrom(l)); + uint64_t d; + EXPECT_TRUE(m.IsKnownOffsetFrom(l, &d)); + EXPECT_EQ(0x1b13462d8577c538ULL, d); + EXPECT_TRUE(m.IsKnownConstant()); + EXPECT_EQ(0x50f62d0cdd1031deULL + 0x1b13462d8577c538ULL, m.Value()); +} + +TEST(Subtraction, LabelConstant) { + Label l, m; + m = l - 0x0620884d21d3138eULL; + EXPECT_TRUE(m.IsKnownOffsetFrom(l)); + uint64_t d; + EXPECT_TRUE(m.IsKnownOffsetFrom(l, &d)); + EXPECT_EQ(-0x0620884d21d3138eULL, d); + EXPECT_FALSE(m.IsKnownConstant()); +} + +TEST(Subtraction, KnownLabelConstant) { + Label l, m; + l = 0x6237fbaf9ef7929eULL; + m = l - 0x317730995d2ab6eeULL; + EXPECT_TRUE(m.IsKnownOffsetFrom(l)); + uint64_t d; + EXPECT_TRUE(m.IsKnownOffsetFrom(l, &d)); + EXPECT_EQ(-0x317730995d2ab6eeULL, d); + EXPECT_TRUE(m.IsKnownConstant()); + EXPECT_EQ(0x6237fbaf9ef7929eULL - 0x317730995d2ab6eeULL, m.Value()); +} + +TEST(SubtractionDeathTest, LabelLabel) { + Label l, m; + ASSERT_DEATH(l - m, "IsKnownOffsetFrom\\(label, &offset\\)"); +} + +TEST(Subtraction, LabelLabel) { + Label l, m; + l = m + 0x7fa77ec63e28a17aULL; + EXPECT_EQ(0x7fa77ec63e28a17aULL, l - m); + EXPECT_EQ(-0x7fa77ec63e28a17aULL, m - l); +} + +TEST(IsKnownConstant, Undefined) { + Label l; + EXPECT_FALSE(l.IsKnownConstant()); +} + +TEST(IsKnownConstant, RelatedLabel) { + Label l, m; + l = m; + EXPECT_FALSE(l.IsKnownConstant()); + EXPECT_FALSE(m.IsKnownConstant()); +} + +TEST(IsKnownConstant, Constant) { + Label l; + l = 0xf374b1bdd6a22576ULL; + EXPECT_TRUE(l.IsKnownConstant()); +} + +TEST(IsKnownOffsetFrom, Unrelated) { + Label l, m; + EXPECT_FALSE(l.IsKnownOffsetFrom(m)); +} + +TEST(IsKnownOffsetFrom, Related) { + Label l, m; + l = m; + EXPECT_TRUE(l.IsKnownOffsetFrom(m)); +} + +// Test the construction of chains of related labels, and the +// propagation of values through them. +// +// Although the relations between labels are supposed to behave +// symmetrically --- that is, 'a = b' should put a and b in +// indistinguishable states --- there's a distinction made internally +// between the target (a) and the source (b). +// +// So there are five test axes to cover: +// +// - Do we construct the chain with assignment ("Assign") or with constructors +// ("Construct")? +// +// - Do we set the value of the label at the start of the chain +// ("Start") or the label at the end ("End")? +// +// - Are we testing the propagation of a relationship between variable +// values ("Relation"), or the propagation of a known constant value +// ("Value")? +// +// - Do we set the value before building the chain ("Before") or after +// the chain has been built ("After")? +// +// - Do we add new relationships to the end of the existing chain +// ("Forward") or to the beginning ("Backward")? +// +// Of course, "Construct" and "Backward" can't be combined, which +// eliminates eight combinations, and "Construct", "End", and "Before" +// can't be combined, which eliminates two more, so there are are 22 +// combinations, not 32. + +TEST(LabelChain, AssignStartRelationBeforeForward) { + Label a, b, c, d; + Label x; + a = x; + b = a + 0x1; + c = b + 0x10; + d = c + 0x100; + EXPECT_EQ(0x111U, d-x); + EXPECT_EQ(0x11U, c-x); + EXPECT_EQ(0x1U, b-x); + EXPECT_EQ(0U, a-x); +} + +TEST(LabelChain, AssignStartRelationBeforeBackward) { + Label a, b, c, d; + Label x; + a = x; + d = c + 0x100; + c = b + 0x10; + b = a + 0x1; + EXPECT_EQ(0x111U, d-x); + EXPECT_EQ(0x11U, c-x); + EXPECT_EQ(0x1U, b-x); + EXPECT_EQ(0U, a-x); +} + +TEST(LabelChain, AssignStartRelationAfterForward) { + Label a, b, c, d; + Label x; + b = a + 0x1; + c = b + 0x10; + d = c + 0x100; + a = x; + EXPECT_EQ(0x111U, d-x); + EXPECT_EQ(0x11U, c-x); + EXPECT_EQ(0x1U, b-x); + EXPECT_EQ(0U, a-x); +} + +TEST(LabelChain, AssignStartRelationAfterBackward) { + Label a, b, c, d; + Label x; + d = c + 0x100; + c = b + 0x10; + b = a + 0x1; + a = x; + EXPECT_EQ(0x111U, d-x); + EXPECT_EQ(0x11U, c-x); + EXPECT_EQ(0x1U, b-x); + EXPECT_EQ(0U, a-x); +} + +TEST(LabelChain, AssignStartValueBeforeForward) { + Label a, b, c, d; + a = 0xa131200190546ac2ULL; + b = a + 0x1; + c = b + 0x10; + d = c + 0x100; + EXPECT_EQ(0xa131200190546ac2ULL + 0x111U, d.Value()); + EXPECT_EQ(0xa131200190546ac2ULL + 0x11U, c.Value()); + EXPECT_EQ(0xa131200190546ac2ULL + 0x1U, b.Value()); + EXPECT_EQ(0xa131200190546ac2ULL + 0U, a.Value()); +} + +TEST(LabelChain, AssignStartValueBeforeBackward) { + Label a, b, c, d; + a = 0x8da17e1670ad4fa2ULL; + d = c + 0x100; + c = b + 0x10; + b = a + 0x1; + EXPECT_EQ(0x8da17e1670ad4fa2ULL + 0x111U, d.Value()); + EXPECT_EQ(0x8da17e1670ad4fa2ULL + 0x11U, c.Value()); + EXPECT_EQ(0x8da17e1670ad4fa2ULL + 0x1U, b.Value()); + EXPECT_EQ(0x8da17e1670ad4fa2ULL + 0U, a.Value()); +} + +TEST(LabelChain, AssignStartValueAfterForward) { + Label a, b, c, d; + b = a + 0x1; + c = b + 0x10; + d = c + 0x100; + a = 0x99b8f51bafd41adaULL; + EXPECT_EQ(0x99b8f51bafd41adaULL + 0x111U, d.Value()); + EXPECT_EQ(0x99b8f51bafd41adaULL + 0x11U, c.Value()); + EXPECT_EQ(0x99b8f51bafd41adaULL + 0x1U, b.Value()); + EXPECT_EQ(0x99b8f51bafd41adaULL + 0U, a.Value()); +} + +TEST(LabelChain, AssignStartValueAfterBackward) { + Label a, b, c, d; + d = c + 0x100; + c = b + 0x10; + b = a + 0x1; + a = 0xc86ca1d97ab5df6eULL; + EXPECT_EQ(0xc86ca1d97ab5df6eULL + 0x111U, d.Value()); + EXPECT_EQ(0xc86ca1d97ab5df6eULL + 0x11U, c.Value()); + EXPECT_EQ(0xc86ca1d97ab5df6eULL + 0x1U, b.Value()); + EXPECT_EQ(0xc86ca1d97ab5df6eULL + 0U, a.Value()); +} + +TEST(LabelChain, AssignEndRelationBeforeForward) { + Label a, b, c, d; + Label x; + x = d; + b = a + 0x1; + c = b + 0x10; + d = c + 0x100; + EXPECT_EQ(-(uint64_t)0x111U, a-x); + EXPECT_EQ(-(uint64_t)0x110U, b-x); + EXPECT_EQ(-(uint64_t)0x100U, c-x); + EXPECT_EQ(-(uint64_t)0U, d-x); +} + +TEST(LabelChain, AssignEndRelationBeforeBackward) { + Label a, b, c, d; + Label x; + x = d; + d = c + 0x100; + c = b + 0x10; + b = a + 0x1; + EXPECT_EQ(-(uint64_t)0x111U, a-x); + EXPECT_EQ(-(uint64_t)0x110U, b-x); + EXPECT_EQ(-(uint64_t)0x100U, c-x); + EXPECT_EQ(-(uint64_t)0U, d-x); +} + +TEST(LabelChain, AssignEndRelationAfterForward) { + Label a, b, c, d; + Label x; + b = a + 0x1; + c = b + 0x10; + d = c + 0x100; + x = d; + EXPECT_EQ(-(uint64_t)0x111U, a-x); + EXPECT_EQ(-(uint64_t)0x110U, b-x); + EXPECT_EQ(-(uint64_t)0x100U, c-x); + EXPECT_EQ(-(uint64_t)0x000U, d-x); +} + +TEST(LabelChain, AssignEndRelationAfterBackward) { + Label a, b, c, d; + Label x; + d = c + 0x100; + c = b + 0x10; + b = a + 0x1; + x = d; + EXPECT_EQ(-(uint64_t)0x111U, a-x); + EXPECT_EQ(-(uint64_t)0x110U, b-x); + EXPECT_EQ(-(uint64_t)0x100U, c-x); + EXPECT_EQ(-(uint64_t)0x000U, d-x); +} + +TEST(LabelChain, AssignEndValueBeforeForward) { + Label a, b, c, d; + d = 0xa131200190546ac2ULL; + b = a + 0x1; + c = b + 0x10; + d = c + 0x100; + EXPECT_EQ(0xa131200190546ac2ULL - 0x111, a.Value()); + EXPECT_EQ(0xa131200190546ac2ULL - 0x110, b.Value()); + EXPECT_EQ(0xa131200190546ac2ULL - 0x100, c.Value()); + EXPECT_EQ(0xa131200190546ac2ULL - 0x000, d.Value()); +} + +TEST(LabelChain, AssignEndValueBeforeBackward) { + Label a, b, c, d; + d = 0x8da17e1670ad4fa2ULL; + d = c + 0x100; + c = b + 0x10; + b = a + 0x1; + EXPECT_EQ(0x8da17e1670ad4fa2ULL - 0x111, a.Value()); + EXPECT_EQ(0x8da17e1670ad4fa2ULL - 0x110, b.Value()); + EXPECT_EQ(0x8da17e1670ad4fa2ULL - 0x100, c.Value()); + EXPECT_EQ(0x8da17e1670ad4fa2ULL - 0x000, d.Value()); +} + +TEST(LabelChain, AssignEndValueAfterForward) { + Label a, b, c, d; + b = a + 0x1; + c = b + 0x10; + d = c + 0x100; + d = 0x99b8f51bafd41adaULL; + EXPECT_EQ(0x99b8f51bafd41adaULL - 0x111, a.Value()); + EXPECT_EQ(0x99b8f51bafd41adaULL - 0x110, b.Value()); + EXPECT_EQ(0x99b8f51bafd41adaULL - 0x100, c.Value()); + EXPECT_EQ(0x99b8f51bafd41adaULL - 0x000, d.Value()); +} + +TEST(LabelChain, AssignEndValueAfterBackward) { + Label a, b, c, d; + d = c + 0x100; + c = b + 0x10; + b = a + 0x1; + d = 0xc86ca1d97ab5df6eULL; + EXPECT_EQ(0xc86ca1d97ab5df6eULL - 0x111, a.Value()); + EXPECT_EQ(0xc86ca1d97ab5df6eULL - 0x110, b.Value()); + EXPECT_EQ(0xc86ca1d97ab5df6eULL - 0x100, c.Value()); + EXPECT_EQ(0xc86ca1d97ab5df6eULL - 0x000, d.Value()); +} + +TEST(LabelChain, ConstructStartRelationBeforeForward) { + Label x; + Label a(x); + Label b(a + 0x1); + Label c(b + 0x10); + Label d(c + 0x100); + EXPECT_EQ(0x111U, d-x); + EXPECT_EQ(0x11U, c-x); + EXPECT_EQ(0x1U, b-x); + EXPECT_EQ(0U, a-x); +} + +TEST(LabelChain, ConstructStartRelationAfterForward) { + Label x; + Label a; + Label b(a + 0x1); + Label c(b + 0x10); + Label d(c + 0x100); + a = x; + EXPECT_EQ(0x111U, d-x); + EXPECT_EQ(0x11U, c-x); + EXPECT_EQ(0x1U, b-x); + EXPECT_EQ(0U, a-x); +} + +TEST(LabelChain, ConstructStartValueBeforeForward) { + Label a(0x5d234d177d01ccc8ULL); + Label b(a + 0x1); + Label c(b + 0x10); + Label d(c + 0x100); + EXPECT_EQ(0x5d234d177d01ccc8ULL + 0x111U, d.Value()); + EXPECT_EQ(0x5d234d177d01ccc8ULL + 0x011U, c.Value()); + EXPECT_EQ(0x5d234d177d01ccc8ULL + 0x001U, b.Value()); + EXPECT_EQ(0x5d234d177d01ccc8ULL + 0x000U, a.Value()); +} + +TEST(LabelChain, ConstructStartValueAfterForward) { + Label a; + Label b(a + 0x1); + Label c(b + 0x10); + Label d(c + 0x100); + a = 0xded85d54586e84fcULL; + EXPECT_EQ(0xded85d54586e84fcULL + 0x111U, d.Value()); + EXPECT_EQ(0xded85d54586e84fcULL + 0x011U, c.Value()); + EXPECT_EQ(0xded85d54586e84fcULL + 0x001U, b.Value()); + EXPECT_EQ(0xded85d54586e84fcULL + 0x000U, a.Value()); +} + +TEST(LabelChain, ConstructEndRelationAfterForward) { + Label x; + Label a; + Label b(a + 0x1); + Label c(b + 0x10); + Label d(c + 0x100); + x = d; + EXPECT_EQ(-(uint64_t)0x111U, a-x); + EXPECT_EQ(-(uint64_t)0x110U, b-x); + EXPECT_EQ(-(uint64_t)0x100U, c-x); + EXPECT_EQ(-(uint64_t)0x000U, d-x); +} + +TEST(LabelChain, ConstructEndValueAfterForward) { + Label a; + Label b(a + 0x1); + Label c(b + 0x10); + Label d(c + 0x100); + d = 0x99b8f51bafd41adaULL; + EXPECT_EQ(0x99b8f51bafd41adaULL - 0x111, a.Value()); + EXPECT_EQ(0x99b8f51bafd41adaULL - 0x110, b.Value()); + EXPECT_EQ(0x99b8f51bafd41adaULL - 0x100, c.Value()); + EXPECT_EQ(0x99b8f51bafd41adaULL - 0x000, d.Value()); +} + +TEST(LabelTree, KnownValue) { + Label l, m, n, o, p; + l = m; + m = n; + o = p; + p = n; + l = 0x536b5de3d468a1b5ULL; + EXPECT_EQ(0x536b5de3d468a1b5ULL, o.Value()); +} + +TEST(LabelTree, Related) { + Label l, m, n, o, p; + l = m - 1; + m = n - 10; + o = p + 100; + p = n + 1000; + EXPECT_EQ(1111U, o - l); +} + +TEST(EquationDeathTest, EqualConstants) { + Label m = 0x0d3962f280f07d24ULL; + Label n = 0x0d3962f280f07d24ULL; + m = n; // no death expected +} + +TEST(EquationDeathTest, EqualIndirectConstants) { + Label m = 0xa347f1e5238fe6a1ULL; + Label n; + Label o = n; + n = 0xa347f1e5238fe6a1ULL; + n = m; // no death expected +} + +TEST(EquationDeathTest, ConstantClash) { + Label m = 0xd4cc0f4f630ec741ULL; + Label n = 0x934cd2d8254fc3eaULL; + ASSERT_DEATH(m = n, "addend_ == addend"); +} + +TEST(EquationDeathTest, IndirectConstantClash) { + Label m = 0xd4cc0f4f630ec741ULL; + Label n, o; + n = o; + o = 0xcfbe3b83ac49ce86ULL; + ASSERT_DEATH(m = n, "addend_ == addend"); +} + +// Assigning to a related label may free the next Binding on its +// chain. This test always passes; it is interesting to memory +// checkers and coverage analysis. +TEST(LabelReferenceCount, AssignmentFree) { + Label l; + { + Label m; + l = m; + } + // This should free m's Binding. + l = 0xca8bae92f0376d4fULL; + ASSERT_EQ(0xca8bae92f0376d4fULL, l.Value()); +} + +// Finding the value of a label may free the Binding it refers to. This test +// always passes; it is interesting to memory checkers and coverage analysis. +TEST(LabelReferenceCount, FindValueFree) { + Label l; + { + Label m, n; + l = m; + m = n; + n = 0x7a0b0c576672daafULL; + // At this point, l's Binding refers to m's Binding, which refers + // to n's binding. + } + // Now, l is the only reference keeping the three Bindings alive. + // Resolving its value should free l's and m's original bindings. + ASSERT_EQ(0x7a0b0c576672daafULL, l.Value()); +} + +TEST(ConstructSection, Simple) { + Section s; +} + +TEST(ConstructSection, WithEndian) { + Section s(kBigEndian); +} + +// A fixture class for TestAssembler::Section tests. +class SectionFixture { + public: + Section section; + string contents; + static const uint8_t data[]; + static const size_t data_size; +}; + +const uint8_t SectionFixture::data[] = { + 0x87, 0x4f, 0x43, 0x67, 0x30, 0xd0, 0xd4, 0x0e +}; + +#define I0() +#define I1(a) { a } +#define I2(a,b) { a,b } +#define I3(a,b,c) { a,b,c } +#define I4(a,b,c,d) { a,b,c,d } +#define I5(a,b,c,d,e) { a,b,c,d,e } +#define I6(a,b,c,d,e,f) { a,b,c,d,e,f } +#define I7(a,b,c,d,e,f,g) { a,b,c,d,e,f,g } +#define I8(a,b,c,d,e,f,g,h) { a,b,c,d,e,f,g,h } +#define I9(a,b,c,d,e,f,g,h,i) { a,b,c,d,e,f,g,h,i } +#define ASSERT_BYTES(s, b) \ + do \ + { \ + static const uint8_t expected_bytes[] = b; \ + ASSERT_EQ(sizeof(expected_bytes), s.size()); \ + ASSERT_TRUE(memcmp(s.data(), (const char *) expected_bytes, \ + sizeof(expected_bytes)) == 0); \ + } \ + while(0) + +class Append: public SectionFixture, public Test { }; + +TEST_F(Append, Bytes) { + section.Append(data, sizeof(data)); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_EQ(sizeof(data), contents.size()); + EXPECT_TRUE(0 == memcmp(contents.data(), (const char *) data, sizeof(data))); +} + +TEST_F(Append, BytesTwice) { + section.Append(data, sizeof(data)); + section.Append(data, sizeof(data)); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_EQ(2 * sizeof(data), contents.size()); + ASSERT_TRUE(0 == memcmp(contents.data(), (const char *) data, sizeof(data))); + ASSERT_TRUE(0 == memcmp(contents.data() + sizeof(data), + (const char *) data, sizeof(data))); +} + +TEST_F(Append, String) { + string s1 = "howdy "; + string s2 = "there"; + section.Append(s1); + section.Append(s2); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_STREQ(contents.c_str(), "howdy there"); +} + +TEST_F(Append, CString) { + section.AppendCString("howdy"); + section.AppendCString(""); + section.AppendCString("there"); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_EQ(string("howdy\0\0there\0", 13), contents); +} + +TEST_F(Append, CStringSize) { + section.AppendCString("howdy", 3); + section.AppendCString("there", 5); + section.AppendCString("fred", 6); + section.AppendCString("natalie", 0); + section.AppendCString("", 10); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_EQ(string("howtherefred\0\0\0\0\0\0\0\0\0\0\0\0", 24), contents); +} + +TEST_F(Append, RepeatedBytes) { + section.Append((size_t) 10, '*'); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_STREQ(contents.c_str(), "**********"); +} + +TEST_F(Append, GeneralLE1) { + section.Append(kLittleEndian, 1, 42); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I1(42)); +} + +TEST_F(Append, GeneralLE2) { + section.Append(kLittleEndian, 2, 0x15a1); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I2(0xa1, 0x15)); +} + +TEST_F(Append, GeneralLE3) { + section.Append(kLittleEndian, 3, 0x59ae8d); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I3(0x8d, 0xae, 0x59)); +} + +TEST_F(Append, GeneralLE4) { + section.Append(kLittleEndian, 4, 0x51603c56); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I4(0x56, 0x3c, 0x60, 0x51)); +} + +TEST_F(Append, GeneralLE5) { + section.Append(kLittleEndian, 5, 0x385e2803b4ULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I5(0xb4, 0x03, 0x28, 0x5e, 0x38)); +} + +TEST_F(Append, GeneralLE6) { + section.Append(kLittleEndian, 6, 0xc7db9534dd1fULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I6(0x1f, 0xdd, 0x34, 0x95, 0xdb, 0xc7)); +} + +TEST_F(Append, GeneralLE7) { + section.Append(kLittleEndian, 7, 0x1445c9f1b843e6ULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I7(0xe6, 0x43, 0xb8, 0xf1, 0xc9, 0x45, 0x14)); +} + +TEST_F(Append, GeneralLE8) { + section.Append(kLittleEndian, 8, 0xaf48019dfe5c01e5ULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I8(0xe5, 0x01, 0x5c, 0xfe, 0x9d, 0x01, 0x48, 0xaf)); +} + +TEST_F(Append, GeneralBE1) { + section.Append(kBigEndian, 1, 0xd0ULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I1(0xd0)); +} + +TEST_F(Append, GeneralBE2) { + section.Append(kBigEndian, 2, 0x2e7eULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I2(0x2e, 0x7e)); +} + +TEST_F(Append, GeneralBE3) { + section.Append(kBigEndian, 3, 0x37dad6ULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I3(0x37, 0xda, 0xd6)); +} + +TEST_F(Append, GeneralBE4) { + section.Append(kBigEndian, 4, 0x715935c7ULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I4(0x71, 0x59, 0x35, 0xc7)); +} + +TEST_F(Append, GeneralBE5) { + section.Append(kBigEndian, 5, 0x42baeb02b7ULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I5(0x42, 0xba, 0xeb, 0x02, 0xb7)); +} + +TEST_F(Append, GeneralBE6) { + section.Append(kBigEndian, 6, 0xf1cdf10e7b18ULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I6(0xf1, 0xcd, 0xf1, 0x0e, 0x7b, 0x18)); +} + +TEST_F(Append, GeneralBE7) { + section.Append(kBigEndian, 7, 0xf50a724f0b0d20ULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I7(0xf5, 0x0a, 0x72, 0x4f, 0x0b, 0x0d, 0x20)); +} + +TEST_F(Append, GeneralBE8) { + section.Append(kBigEndian, 8, 0xa6b2cb5e98dc9c16ULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I8(0xa6, 0xb2, 0xcb, 0x5e, 0x98, 0xdc, 0x9c, 0x16)); +} + +TEST_F(Append, GeneralLE1Label) { + Label l; + section.Append(kLittleEndian, 1, l); + l = 42; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I1(42)); +} + +TEST_F(Append, GeneralLE2Label) { + Label l; + section.Append(kLittleEndian, 2, l); + l = 0x15a1; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I2(0xa1, 0x15)); +} + +TEST_F(Append, GeneralLE3Label) { + Label l; + section.Append(kLittleEndian, 3, l); + l = 0x59ae8d; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I3(0x8d, 0xae, 0x59)); +} + +TEST_F(Append, GeneralLE4Label) { + Label l; + section.Append(kLittleEndian, 4, l); + l = 0x51603c56; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I4(0x56, 0x3c, 0x60, 0x51)); +} + +TEST_F(Append, GeneralLE5Label) { + Label l; + section.Append(kLittleEndian, 5, l); + l = 0x385e2803b4ULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I5(0xb4, 0x03, 0x28, 0x5e, 0x38)); +} + +TEST_F(Append, GeneralLE6Label) { + Label l; + section.Append(kLittleEndian, 6, l); + l = 0xc7db9534dd1fULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I6(0x1f, 0xdd, 0x34, 0x95, 0xdb, 0xc7)); +} + +TEST_F(Append, GeneralLE7Label) { + Label l; + section.Append(kLittleEndian, 7, l); + l = 0x1445c9f1b843e6ULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I7(0xe6, 0x43, 0xb8, 0xf1, 0xc9, 0x45, 0x14)); +} + +TEST_F(Append, GeneralLE8Label) { + Label l; + section.Append(kLittleEndian, 8, l); + l = 0xaf48019dfe5c01e5ULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I8(0xe5, 0x01, 0x5c, 0xfe, 0x9d, 0x01, 0x48, 0xaf)); +} + +TEST_F(Append, GeneralBE1Label) { + Label l; + section.Append(kBigEndian, 1, l); + l = 0xd0ULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I1(0xd0)); +} + +TEST_F(Append, GeneralBE2Label) { + Label l; + section.Append(kBigEndian, 2, l); + l = 0x2e7eULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I2(0x2e, 0x7e)); +} + +TEST_F(Append, GeneralBE3Label) { + Label l; + section.Append(kBigEndian, 3, l); + l = 0x37dad6ULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I3(0x37, 0xda, 0xd6)); +} + +TEST_F(Append, GeneralBE4Label) { + Label l; + section.Append(kBigEndian, 4, l); + l = 0x715935c7ULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I4(0x71, 0x59, 0x35, 0xc7)); +} + +TEST_F(Append, GeneralBE5Label) { + Label l; + section.Append(kBigEndian, 5, l); + l = 0x42baeb02b7ULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I5(0x42, 0xba, 0xeb, 0x02, 0xb7)); +} + +TEST_F(Append, GeneralBE6Label) { + Label l; + section.Append(kBigEndian, 6, l); + l = 0xf1cdf10e7b18ULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I6(0xf1, 0xcd, 0xf1, 0x0e, 0x7b, 0x18)); +} + +TEST_F(Append, GeneralBE7Label) { + Label l; + section.Append(kBigEndian, 7, l); + l = 0xf50a724f0b0d20ULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I7(0xf5, 0x0a, 0x72, 0x4f, 0x0b, 0x0d, 0x20)); +} + +TEST_F(Append, GeneralBE8Label) { + Label l; + section.Append(kBigEndian, 8, l); + l = 0xa6b2cb5e98dc9c16ULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I8(0xa6, 0xb2, 0xcb, 0x5e, 0x98, 0xdc, 0x9c, 0x16)); +} + +TEST_F(Append, B8) { + section.Append(1, 0x2a); + section.B8(0xd3U); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I2(0x2a, 0xd3)); +} + +TEST_F(Append, B8Label) { + Label l; + section.Append(1, 0x2a); + section.B8(l); + l = 0x4bU; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I2(0x2a, 0x4b)); +} + +TEST_F(Append, B16) { + section.Append(1, 0x2a); + section.B16(0x472aU); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I3(0x2a, 0x47, 0x2a)); +} + +TEST_F(Append, B16Label) { + Label l; + section.Append(1, 0x2a); + section.B16(l); + l = 0x55e8U; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I3(0x2a, 0x55, 0xe8)); +} + +TEST_F(Append, B32) { + section.Append(1, 0x2a); + section.B32(0xbd412cbcU); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I5(0x2a, 0xbd, 0x41, 0x2c, 0xbc)); +} + +TEST_F(Append, B32Label) { + Label l; + section.Append(1, 0x2a); + section.B32(l); + l = 0x208e37d5U; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I5(0x2a, 0x20, 0x8e, 0x37, 0xd5)); +} + +TEST_F(Append, B64) { + section.Append(1, 0x2a); + section.B64(0x3402a013111e68adULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, + I9(0x2a, 0x34, 0x02, 0xa0, 0x13, 0x11, 0x1e, 0x68, 0xad)); +} + +TEST_F(Append, B64Label) { + Label l; + section.Append(1, 0x2a); + section.B64(l); + l = 0x355dbfbb4ac6d57fULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, + I9(0x2a, 0x35, 0x5d, 0xbf, 0xbb, 0x4a, 0xc6, 0xd5, 0x7f)); +} + +TEST_F(Append, L8) { + section.Append(1, 0x2a); + section.L8(0x26U); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I2(0x2a, 0x26)); +} + +TEST_F(Append, L8Label) { + Label l; + section.Append(1, 0x2a); + section.L8(l); + l = 0xa8U; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I2(0x2a, 0xa8)); +} + +TEST_F(Append, L16) { + section.Append(1, 0x2a); + section.L16(0xca6dU); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I3(0x2a, 0x6d, 0xca)); +} + +TEST_F(Append, L16Label) { + Label l; + section.Append(1, 0x2a); + section.L16(l); + l = 0xd21fU; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I3(0x2a, 0x1f, 0xd2)); +} + +TEST_F(Append, L32) { + section.Append(1, 0x2a); + section.L32(0x558f6181U); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I5(0x2a, 0x81, 0x61, 0x8f, 0x55)); +} + +TEST_F(Append, L32Label) { + Label l; + section.Append(1, 0x2a); + section.L32(l); + l = 0x4b810f82U; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I5(0x2a, 0x82, 0x0f, 0x81, 0x4b)); +} + +TEST_F(Append, L64) { + section.Append(1, 0x2a); + section.L64(0x564384f7579515bfULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, + I9(0x2a, 0xbf, 0x15, 0x95, 0x57, 0xf7, 0x84, 0x43, 0x56)); +} + +TEST_F(Append, L64Label) { + Label l; + section.Append(1, 0x2a); + section.L64(l); + l = 0x424b1d020667c8dbULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, + I9(0x2a, 0xdb, 0xc8, 0x67, 0x06, 0x02, 0x1d, 0x4b, 0x42)); +} + +TEST_F(Append, D8Big) { + section.set_endianness(kBigEndian); + section.Append(1, 0x2a); + section.D8(0xe6U); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I2(0x2a, 0xe6)); +} + +TEST_F(Append, D8BigLabel) { + Label l; + section.set_endianness(kBigEndian); + section.Append(1, 0x2a); + section.D8(l); + l = 0xeeU; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I2(0x2a, 0xee)); +} + +TEST_F(Append, D16Big) { + section.set_endianness(kBigEndian); + section.Append(1, 0x2a); + section.D16(0x83b1U); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I3(0x2a, 0x83, 0xb1)); +} + +TEST_F(Append, D16BigLabel) { + Label l; + section.set_endianness(kBigEndian); + section.Append(1, 0x2a); + section.D16(l); + l = 0x5b55U; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I3(0x2a, 0x5b, 0x55)); +} + +TEST_F(Append, D32Big) { + section.set_endianness(kBigEndian); + section.Append(1, 0x2a); + section.D32(0xd0b0e431U); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I5(0x2a, 0xd0, 0xb0, 0xe4, 0x31)); +} + +TEST_F(Append, D32BigLabel) { + Label l; + section.set_endianness(kBigEndian); + section.Append(1, 0x2a); + section.D32(l); + l = 0x312fb340U; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I5(0x2a, 0x31, 0x2f, 0xb3, 0x40)); +} + +TEST_F(Append, D64Big) { + section.set_endianness(kBigEndian); + section.Append(1, 0x2a); + section.D64(0xb109843500dbcb16ULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, + I9(0x2a, 0xb1, 0x09, 0x84, 0x35, 0x00, 0xdb, 0xcb, 0x16)); +} + +TEST_F(Append, D64BigLabel) { + Label l; + section.set_endianness(kBigEndian); + section.Append(1, 0x2a); + section.D64(l); + l = 0x9a0d61b70f671fd7ULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, + I9(0x2a, 0x9a, 0x0d, 0x61, 0xb7, 0x0f, 0x67, 0x1f, 0xd7)); +} + +TEST_F(Append, D8Little) { + section.set_endianness(kLittleEndian); + section.Append(1, 0x2a); + section.D8(0x42U); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I2(0x2a, 0x42)); +} + +TEST_F(Append, D8LittleLabel) { + Label l; + section.set_endianness(kLittleEndian); + section.Append(1, 0x2a); + section.D8(l); + l = 0x05U; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I2(0x2a, 0x05)); +} + +TEST_F(Append, D16Little) { + section.set_endianness(kLittleEndian); + section.Append(1, 0x2a); + section.D16(0xc5c5U); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I3(0x2a, 0xc5, 0xc5)); +} + +TEST_F(Append, D16LittleLabel) { + Label l; + section.set_endianness(kLittleEndian); + section.Append(1, 0x2a); + section.D16(l); + l = 0xb620U; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I3(0x2a, 0x20, 0xb6)); +} + +TEST_F(Append, D32Little) { + section.set_endianness(kLittleEndian); + section.Append(1, 0x2a); + section.D32(0x1a87d0feU); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I5(0x2a, 0xfe, 0xd0, 0x87, 0x1a)); +} + +TEST_F(Append, D32LittleLabel) { + Label l; + section.set_endianness(kLittleEndian); + section.Append(1, 0x2a); + section.D32(l); + l = 0xb8012d6bU; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I5(0x2a, 0x6b, 0x2d, 0x01, 0xb8)); +} + +TEST_F(Append, D64Little) { + section.set_endianness(kLittleEndian); + section.Append(1, 0x2a); + section.D64(0x42de75c61375a1deULL); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, + I9(0x2a, 0xde, 0xa1, 0x75, 0x13, 0xc6, 0x75, 0xde, 0x42)); +} + +TEST_F(Append, D64LittleLabel) { + Label l; + section.set_endianness(kLittleEndian); + section.Append(1, 0x2a); + section.D64(l); + l = 0x8b3bececf3fb5312ULL; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, + I9(0x2a, 0x12, 0x53, 0xfb, 0xf3, 0xec, 0xec, 0x3b, 0x8b)); +} + +TEST_F(Append, Variety) { + Label a, b, c, d, e, f, g, h; + section.Append(kBigEndian, 1, a) + .Append(kLittleEndian, 8, h) + .Append(kBigEndian, 1, 0x8bULL) + .Append(kLittleEndian, 8, 0x0ea56540448f4439ULL) + .Append(kBigEndian, 2, b) + .Append(kLittleEndian, 7, g) + .Append(kBigEndian, 2, 0xcf15ULL) + .Append(kLittleEndian, 7, 0x29694f04c5724aULL) + .Append(kBigEndian, 3, c) + .Append(kLittleEndian, 6, f) + .Append(kBigEndian, 3, 0x8c3ffdULL) + .Append(kLittleEndian, 6, 0x6f11ba80187aULL) + .Append(kBigEndian, 4, d) + .Append(kLittleEndian, 5, e) + .Append(kBigEndian, 4, 0x2fda2472ULL) + .Append(kLittleEndian, 5, 0x0aa02d423fULL) + .Append(kBigEndian, 5, e) + .Append(kLittleEndian, 4, d) + .Append(kBigEndian, 5, 0x53ba432138ULL) + .Append(kLittleEndian, 4, 0xf139ae60ULL) + .Append(kBigEndian, 6, f) + .Append(kLittleEndian, 3, c) + .Append(kBigEndian, 6, 0x168e436af716ULL) + .Append(kLittleEndian, 3, 0x3ef189ULL) + .Append(kBigEndian, 7, g) + .Append(kLittleEndian, 2, b) + .Append(kBigEndian, 7, 0xacd4ef233e47d9ULL) + .Append(kLittleEndian, 2, 0x5311ULL) + .Append(kBigEndian, 8, h) + .Append(kLittleEndian, 1, a) + .Append(kBigEndian, 8, 0x4668d5f1c93637a1ULL) + .Append(kLittleEndian, 1, 0x65ULL); + a = 0x79ac9bd8aa256b35ULL; + b = 0x22d13097ef86c91cULL; + c = 0xf204968b0a05862fULL; + d = 0x163177f15a0eb4ecULL; + e = 0xbd1b0f1d977f2246ULL; + f = 0x2b0842eee83c6461ULL; + g = 0x92f4b928a4bf875eULL; + h = 0x61a199a8f7286ba6ULL; + ASSERT_EQ(8 * 18U, section.Size()); + ASSERT_TRUE(section.GetContents(&contents)); + + static const uint8_t expected[] = { + 0x35, 0xa6, 0x6b, 0x28, 0xf7, 0xa8, 0x99, 0xa1, 0x61, + 0x8b, 0x39, 0x44, 0x8f, 0x44, 0x40, 0x65, 0xa5, 0x0e, + 0xc9, 0x1c, 0x5e, 0x87, 0xbf, 0xa4, 0x28, 0xb9, 0xf4, + 0xcf, 0x15, 0x4a, 0x72, 0xc5, 0x04, 0x4f, 0x69, 0x29, + 0x05, 0x86, 0x2f, 0x61, 0x64, 0x3c, 0xe8, 0xee, 0x42, + 0x8c, 0x3f, 0xfd, 0x7a, 0x18, 0x80, 0xba, 0x11, 0x6f, + 0x5a, 0x0e, 0xb4, 0xec, 0x46, 0x22, 0x7f, 0x97, 0x1d, + 0x2f, 0xda, 0x24, 0x72, 0x3f, 0x42, 0x2d, 0xa0, 0x0a, + 0x1d, 0x97, 0x7f, 0x22, 0x46, 0xec, 0xb4, 0x0e, 0x5a, + 0x53, 0xba, 0x43, 0x21, 0x38, 0x60, 0xae, 0x39, 0xf1, + 0x42, 0xee, 0xe8, 0x3c, 0x64, 0x61, 0x2f, 0x86, 0x05, + 0x16, 0x8e, 0x43, 0x6a, 0xf7, 0x16, 0x89, 0xf1, 0x3e, + 0xf4, 0xb9, 0x28, 0xa4, 0xbf, 0x87, 0x5e, 0x1c, 0xc9, + 0xac, 0xd4, 0xef, 0x23, 0x3e, 0x47, 0xd9, 0x11, 0x53, + 0x61, 0xa1, 0x99, 0xa8, 0xf7, 0x28, 0x6b, 0xa6, 0x35, + 0x46, 0x68, 0xd5, 0xf1, 0xc9, 0x36, 0x37, 0xa1, 0x65, + }; + + ASSERT_TRUE(0 == memcmp(contents.data(), expected, sizeof(expected))); +} + +TEST_F(Append, Section) { + section.Append("murder"); + { + Section middle; + middle.Append(" she"); + section.Append(middle); + } + section.Append(" wrote"); + EXPECT_EQ(16U, section.Size()); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_STREQ(contents.c_str(), "murder she wrote"); +} + +TEST_F(Append, SectionRefs) { + section.Append("sugar "); + Label l; + { + Section middle; + Label m; + middle.B32(m); + section.Append(middle); + m = 0x66726565; + } + section.Append(" jazz"); + EXPECT_EQ(15U, section.Size()); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_STREQ(contents.c_str(), "sugar free jazz"); +} + +TEST_F(Append, LEB128_0) { + section.LEB128(0); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\0", 1), contents); +} + +TEST_F(Append, LEB128_0x3f) { + section.LEB128(0x3f); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x3f", 1), contents); +} + +TEST_F(Append, LEB128_0x40) { + section.LEB128(0x40); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\xc0\x00", 2), contents); +} + +TEST_F(Append, LEB128_0x7f) { + section.LEB128(0x7f); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\xff\x00", 2), contents); +} + +TEST_F(Append, LEB128_0x80) { + section.LEB128(0x80); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x80\x01", 2), contents); +} + +TEST_F(Append, LEB128_0xff) { + section.LEB128(0xff); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\xff\x01", 2), contents); +} + +TEST_F(Append, LEB128_0x1fff) { + section.LEB128(0x1fff); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\xff\x3f", 2), contents); +} + +TEST_F(Append, LEB128_0x2000) { + section.LEB128(0x2000); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x80\xc0\x00", 3), contents); +} + +TEST_F(Append, LEB128_n1) { + section.LEB128(-1); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x7f", 1), contents); +} + +TEST_F(Append, LEB128_n0x40) { + section.LEB128(-0x40); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x40", 1), contents); +} + +TEST_F(Append, LEB128_n0x41) { + section.LEB128(-0x41); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\xbf\x7f", 2), contents); +} + +TEST_F(Append, LEB128_n0x7f) { + section.LEB128(-0x7f); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x81\x7f", 2), contents); +} + +TEST_F(Append, LEB128_n0x80) { + section.LEB128(-0x80); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x80\x7f", 2), contents); +} + +TEST_F(Append, LEB128_n0x2000) { + section.LEB128(-0x2000); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x80\x40", 2), contents); +} + +TEST_F(Append, LEB128_n0x2001) { + section.LEB128(-0x2001); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\xff\xbf\x7f", 3), contents); +} + +TEST_F(Append,ULEB128_0) { + section.ULEB128(0); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\0", 1), contents); +} + +TEST_F(Append,ULEB128_1) { + section.ULEB128(1); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x01", 1), contents); +} + +TEST_F(Append,ULEB128_0x3f) { + section.ULEB128(0x3f); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x3f", 1), contents); +} + +TEST_F(Append,ULEB128_0x40) { + section.ULEB128(0x40); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x40", 1), contents); +} + +TEST_F(Append,ULEB128_0x7f) { + section.ULEB128(0x7f); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x7f", 1), contents); +} + +TEST_F(Append,ULEB128_0x80) { + section.ULEB128(0x80); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x80\x01", 2), contents); +} + +TEST_F(Append,ULEB128_0xff) { + section.ULEB128(0xff); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\xff\x01", 2), contents); +} + +TEST_F(Append,ULEB128_0x100) { + section.ULEB128(0x100); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x80\x02", 2), contents); +} + +TEST_F(Append,ULEB128_0x1fff) { + section.ULEB128(0x1fff); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\xff\x3f", 2), contents); +} + +TEST_F(Append,ULEB128_0x2000) { + section.ULEB128(0x2000); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x80\x40", 2), contents); +} + +TEST_F(Append,ULEB128_0x3fff) { + section.ULEB128(0x3fff); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\xff\x7f", 2), contents); +} + +TEST_F(Append,ULEB128_0x4000) { + section.ULEB128(0x4000); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x80\x80\x01", 3), contents); +} + +TEST_F(Append,ULEB128_12857) { + section.ULEB128(12857); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\xb9\x64", 2), contents); +} + +TEST_F(Append, LEBChain) { + section.LEB128(-0x80).ULEB128(12857).Append("*"); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(string("\x80\x7f\xb9\x64*", 5), contents); +} + + +class GetContents: public SectionFixture, public Test { }; + +TEST_F(GetContents, Undefined) { + Label l; + section.Append(kLittleEndian, 8, l); + ASSERT_FALSE(section.GetContents(&contents)); +} + +TEST_F(GetContents, ClearsContents) { + section.Append((size_t) 10, '*'); + EXPECT_EQ(10U, section.Size()); + EXPECT_TRUE(section.GetContents(&contents)); + EXPECT_EQ(0U, section.Size()); +} + +TEST_F(GetContents, ClearsReferences) { + Label l; + section.Append(kBigEndian, 1, l); + l = 42; + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_BYTES(contents, I1(42)); + ASSERT_TRUE(section.GetContents(&contents)); // should not die +} + +class Miscellanea: public SectionFixture, public Test { }; + +TEST_F(Miscellanea, Clear) { + section.Append("howdy"); + Label l; + section.L32(l); + EXPECT_EQ(9U, section.Size()); + section.Clear(); + EXPECT_EQ(0U, section.Size()); + l = 0x8d231bf0U; + ASSERT_TRUE(section.GetContents(&contents)); // should not die +} + +TEST_F(Miscellanea, Align) { + section.Append("*"); + EXPECT_EQ(1U, section.Size()); + section.Align(4).Append("*"); + EXPECT_EQ(5U, section.Size()); + section.Append("*").Align(2); + EXPECT_EQ(6U, section.Size()); +} + +TEST_F(Miscellanea, AlignPad) { + section.Append("*"); + EXPECT_EQ(1U, section.Size()); + section.Align(4, ' ').Append("*"); + EXPECT_EQ(5U, section.Size()); + section.Append("*").Align(2, ' '); + EXPECT_EQ(6U, section.Size()); + ASSERT_TRUE(section.GetContents(&contents)); + ASSERT_EQ(string("* **"), contents); +} + +TEST_F(Miscellanea, StartHereMark) { + Label m; + section.Append(42, ' ').Mark(&m).Append(13, '+'); + EXPECT_EQ(42U, m - section.start()); + EXPECT_EQ(42U + 13U, section.Here() - section.start()); + EXPECT_FALSE(section.start().IsKnownConstant()); + EXPECT_FALSE(m.IsKnownConstant()); + EXPECT_FALSE(section.Here().IsKnownConstant()); +} + +TEST_F(Miscellanea, Endianness) { + section.set_endianness(kBigEndian); + EXPECT_EQ(kBigEndian, section.endianness()); + section.set_endianness(kLittleEndian); + EXPECT_EQ(kLittleEndian, section.endianness()); +} diff --git a/3rdParty/Breakpad/src/common/unordered.h b/3rdParty/Breakpad/src/common/unordered.h new file mode 100644 index 0000000..ec665cc --- /dev/null +++ b/3rdParty/Breakpad/src/common/unordered.h @@ -0,0 +1,62 @@ +// Copyright (c) 2010 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Include this file to use unordered_map and unordered_set. If tr1 +// or C++11 is not available, you can switch to using hash_set and +// hash_map by defining BP_USE_HASH_SET. + +#ifndef COMMON_UNORDERED_H_ +#define COMMON_UNORDERED_H_ + +#if defined(BP_USE_HASH_SET) +#include <hash_map> +#include <hash_set> + +// For hash<string>. +#include "util/hash/hash.h" + +template <class T, class U, class H = __gnu_cxx::hash<T> > +struct unordered_map : public hash_map<T, U, H> {}; +template <class T, class H = __gnu_cxx::hash<T> > +struct unordered_set : public hash_set<T, H> {}; + +#elif defined(_LIBCPP_VERSION) // c++11 +#include <unordered_map> +#include <unordered_set> +using std::unordered_map; +using std::unordered_set; + +#else // Fallback to tr1::unordered +#include <tr1/unordered_map> +#include <tr1/unordered_set> +using std::tr1::unordered_map; +using std::tr1::unordered_set; +#endif + +#endif // COMMON_UNORDERED_H_ diff --git a/3rdParty/Breakpad/src/common/windows/dia_util.cc b/3rdParty/Breakpad/src/common/windows/dia_util.cc new file mode 100644 index 0000000..f4cfa1d --- /dev/null +++ b/3rdParty/Breakpad/src/common/windows/dia_util.cc @@ -0,0 +1,92 @@ +// Copyright 2013 Google Inc. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "common/windows/dia_util.h" + +#include <atlbase.h> + +namespace google_breakpad { + +bool FindDebugStream(const wchar_t* name, + IDiaSession* session, + IDiaEnumDebugStreamData** debug_stream) { + CComPtr<IDiaEnumDebugStreams> enum_debug_streams; + if (FAILED(session->getEnumDebugStreams(&enum_debug_streams))) { + fprintf(stderr, "IDiaSession::getEnumDebugStreams failed\n"); + return false; + } + + CComPtr<IDiaEnumDebugStreamData> temp_debug_stream; + ULONG fetched = 0; + while (SUCCEEDED(enum_debug_streams->Next(1, &temp_debug_stream, &fetched)) && + fetched == 1) { + CComBSTR stream_name; + if (FAILED(temp_debug_stream->get_name(&stream_name))) { + fprintf(stderr, "IDiaEnumDebugStreamData::get_name failed\n"); + return false; + } + + // Found the stream? + if (wcsncmp((LPWSTR)stream_name, name, stream_name.Length()) == 0) { + *debug_stream = temp_debug_stream.Detach(); + return true; + } + + temp_debug_stream.Release(); + } + + // No table was found. + return false; +} + +bool FindTable(REFIID iid, IDiaSession* session, void** table) { + // Get the table enumerator. + CComPtr<IDiaEnumTables> enum_tables; + if (FAILED(session->getEnumTables(&enum_tables))) { + fprintf(stderr, "IDiaSession::getEnumTables failed\n"); + return false; + } + + // Iterate through the tables. + CComPtr<IDiaTable> temp_table; + ULONG fetched = 0; + while (SUCCEEDED(enum_tables->Next(1, &temp_table, &fetched)) && + fetched == 1) { + void* temp = NULL; + if (SUCCEEDED(temp_table->QueryInterface(iid, &temp))) { + *table = temp; + return true; + } + temp_table.Release(); + } + + // The table was not found. + return false; +} + +} // namespace google_breakpad
\ No newline at end of file diff --git a/3rdParty/Breakpad/src/common/windows/dia_util.h b/3rdParty/Breakpad/src/common/windows/dia_util.h new file mode 100644 index 0000000..b9e0df2 --- /dev/null +++ b/3rdParty/Breakpad/src/common/windows/dia_util.h @@ -0,0 +1,64 @@ +// Copyright 2013 Google Inc. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Utilities for loading debug streams and tables from a PDB file. + +#ifndef COMMON_WINDOWS_DIA_UTIL_H_ +#define COMMON_WINDOWS_DIA_UTIL_H_ + +#include <Windows.h> +#include <dia2.h> + +namespace google_breakpad { + +// Find the debug stream of the given |name| in the given |session|. Returns +// true on success, false on error of if the stream does not exist. On success +// the stream will be returned via |debug_stream|. +bool FindDebugStream(const wchar_t* name, + IDiaSession* session, + IDiaEnumDebugStreamData** debug_stream); + +// Finds the first table implementing the COM interface with ID |iid| in the +// given |session|. Returns true on success, false on error or if no such +// table is found. On success the table will be returned via |table|. +bool FindTable(REFIID iid, IDiaSession* session, void** table); + +// A templated version of FindTable. Finds the first table implementing type +// |InterfaceType| in the given |session|. Returns true on success, false on +// error or if no such table is found. On success the table will be returned via +// |table|. +template<typename InterfaceType> +bool FindTable(IDiaSession* session, InterfaceType** table) { + return FindTable(__uuidof(InterfaceType), + session, + reinterpret_cast<void**>(table)); +} + +} // namespace google_breakpad + +#endif // COMMON_WINDOWS_DIA_UTIL_H_ diff --git a/3rdParty/Breakpad/src/common/windows/guid_string.h b/3rdParty/Breakpad/src/common/windows/guid_string.h index f8aa8a2..48a5c1d 100644 --- a/3rdParty/Breakpad/src/common/windows/guid_string.h +++ b/3rdParty/Breakpad/src/common/windows/guid_string.h @@ -29,10 +29,10 @@ // guid_string.cc: Convert GUIDs to strings. -#ifndef COMMON_WINDOWS_GUID_STRING_H__ -#define COMMON_WINDOWS_GUID_STRING_H__ +#ifndef COMMON_WINDOWS_GUID_STRING_H_ +#define COMMON_WINDOWS_GUID_STRING_H_ -#include <Guiddef.h> +#include <guiddef.h> #include <string> @@ -55,4 +55,4 @@ class GUIDString { } // namespace google_breakpad -#endif // COMMON_WINDOWS_GUID_STRING_H__ +#endif // COMMON_WINDOWS_GUID_STRING_H_ diff --git a/3rdParty/Breakpad/src/common/windows/http_upload.cc b/3rdParty/Breakpad/src/common/windows/http_upload.cc new file mode 100644 index 0000000..7676bdc --- /dev/null +++ b/3rdParty/Breakpad/src/common/windows/http_upload.cc @@ -0,0 +1,420 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include <assert.h> + +// Disable exception handler warnings. +#pragma warning(disable:4530) + +#include <fstream> + +#include "common/windows/string_utils-inl.h" + +#include "common/windows/http_upload.h" + +namespace google_breakpad { + +using std::ifstream; +using std::ios; + +static const wchar_t kUserAgent[] = L"Breakpad/1.0 (Windows)"; + +// Helper class which closes an internet handle when it goes away +class HTTPUpload::AutoInternetHandle { + public: + explicit AutoInternetHandle(HINTERNET handle) : handle_(handle) {} + ~AutoInternetHandle() { + if (handle_) { + InternetCloseHandle(handle_); + } + } + + HINTERNET get() { return handle_; } + + private: + HINTERNET handle_; +}; + +// static +bool HTTPUpload::SendRequest(const wstring &url, + const map<wstring, wstring> ¶meters, + const map<wstring, wstring> &files, + int *timeout, + wstring *response_body, + int *response_code) { + if (response_code) { + *response_code = 0; + } + + // TODO(bryner): support non-ASCII parameter names + if (!CheckParameters(parameters)) { + return false; + } + + // Break up the URL and make sure we can handle it + wchar_t scheme[16], host[256], path[256]; + URL_COMPONENTS components; + memset(&components, 0, sizeof(components)); + components.dwStructSize = sizeof(components); + components.lpszScheme = scheme; + components.dwSchemeLength = sizeof(scheme) / sizeof(scheme[0]); + components.lpszHostName = host; + components.dwHostNameLength = sizeof(host) / sizeof(host[0]); + components.lpszUrlPath = path; + components.dwUrlPathLength = sizeof(path) / sizeof(path[0]); + if (!InternetCrackUrl(url.c_str(), static_cast<DWORD>(url.size()), + 0, &components)) { + return false; + } + bool secure = false; + if (wcscmp(scheme, L"https") == 0) { + secure = true; + } else if (wcscmp(scheme, L"http") != 0) { + return false; + } + + AutoInternetHandle internet(InternetOpen(kUserAgent, + INTERNET_OPEN_TYPE_PRECONFIG, + NULL, // proxy name + NULL, // proxy bypass + 0)); // flags + if (!internet.get()) { + return false; + } + + AutoInternetHandle connection(InternetConnect(internet.get(), + host, + components.nPort, + NULL, // user name + NULL, // password + INTERNET_SERVICE_HTTP, + 0, // flags + NULL)); // context + if (!connection.get()) { + return false; + } + + DWORD http_open_flags = secure ? INTERNET_FLAG_SECURE : 0; + http_open_flags |= INTERNET_FLAG_NO_COOKIES; + AutoInternetHandle request(HttpOpenRequest(connection.get(), + L"POST", + path, + NULL, // version + NULL, // referer + NULL, // agent type + http_open_flags, + NULL)); // context + if (!request.get()) { + return false; + } + + wstring boundary = GenerateMultipartBoundary(); + wstring content_type_header = GenerateRequestHeader(boundary); + HttpAddRequestHeaders(request.get(), + content_type_header.c_str(), + static_cast<DWORD>(-1), + HTTP_ADDREQ_FLAG_ADD); + + string request_body; + if (!GenerateRequestBody(parameters, files, boundary, &request_body)) { + return false; + } + + if (timeout) { + if (!InternetSetOption(request.get(), + INTERNET_OPTION_SEND_TIMEOUT, + timeout, + sizeof(*timeout))) { + fwprintf(stderr, L"Could not unset send timeout, continuing...\n"); + } + + if (!InternetSetOption(request.get(), + INTERNET_OPTION_RECEIVE_TIMEOUT, + timeout, + sizeof(*timeout))) { + fwprintf(stderr, L"Could not unset receive timeout, continuing...\n"); + } + } + + if (!HttpSendRequest(request.get(), NULL, 0, + const_cast<char *>(request_body.data()), + static_cast<DWORD>(request_body.size()))) { + return false; + } + + // The server indicates a successful upload with HTTP status 200. + wchar_t http_status[4]; + DWORD http_status_size = sizeof(http_status); + if (!HttpQueryInfo(request.get(), HTTP_QUERY_STATUS_CODE, + static_cast<LPVOID>(&http_status), &http_status_size, + 0)) { + return false; + } + + int http_response = wcstol(http_status, NULL, 10); + if (response_code) { + *response_code = http_response; + } + + bool result = (http_response == 200); + + if (result) { + result = ReadResponse(request.get(), response_body); + } + + return result; +} + +// static +bool HTTPUpload::ReadResponse(HINTERNET request, wstring *response) { + bool has_content_length_header = false; + wchar_t content_length[32]; + DWORD content_length_size = sizeof(content_length); + DWORD claimed_size = 0; + string response_body; + + if (HttpQueryInfo(request, HTTP_QUERY_CONTENT_LENGTH, + static_cast<LPVOID>(&content_length), + &content_length_size, 0)) { + has_content_length_header = true; + claimed_size = wcstol(content_length, NULL, 10); + response_body.reserve(claimed_size); + } + + + DWORD bytes_available; + DWORD total_read = 0; + BOOL return_code; + + while (((return_code = InternetQueryDataAvailable(request, &bytes_available, + 0, 0)) != 0) && bytes_available > 0) { + vector<char> response_buffer(bytes_available); + DWORD size_read; + + return_code = InternetReadFile(request, + &response_buffer[0], + bytes_available, &size_read); + + if (return_code && size_read > 0) { + total_read += size_read; + response_body.append(&response_buffer[0], size_read); + } else { + break; + } + } + + bool succeeded = return_code && (!has_content_length_header || + (total_read == claimed_size)); + if (succeeded && response) { + *response = UTF8ToWide(response_body); + } + + return succeeded; +} + +// static +wstring HTTPUpload::GenerateMultipartBoundary() { + // The boundary has 27 '-' characters followed by 16 hex digits + static const wchar_t kBoundaryPrefix[] = L"---------------------------"; + static const int kBoundaryLength = 27 + 16 + 1; + + // Generate some random numbers to fill out the boundary + int r0 = rand(); + int r1 = rand(); + + wchar_t temp[kBoundaryLength]; + swprintf(temp, kBoundaryLength, L"%s%08X%08X", kBoundaryPrefix, r0, r1); + + // remove when VC++7.1 is no longer supported + temp[kBoundaryLength - 1] = L'\0'; + + return wstring(temp); +} + +// static +wstring HTTPUpload::GenerateRequestHeader(const wstring &boundary) { + wstring header = L"Content-Type: multipart/form-data; boundary="; + header += boundary; + return header; +} + +// static +bool HTTPUpload::GenerateRequestBody(const map<wstring, wstring> ¶meters, + const map<wstring, wstring> &files, + const wstring &boundary, + string *request_body) { + string boundary_str = WideToUTF8(boundary); + if (boundary_str.empty()) { + return false; + } + + request_body->clear(); + + // Append each of the parameter pairs as a form-data part + for (map<wstring, wstring>::const_iterator pos = parameters.begin(); + pos != parameters.end(); ++pos) { + request_body->append("--" + boundary_str + "\r\n"); + request_body->append("Content-Disposition: form-data; name=\"" + + WideToUTF8(pos->first) + "\"\r\n\r\n" + + WideToUTF8(pos->second) + "\r\n"); + } + + for (map<wstring, wstring>::const_iterator pos = files.begin(); + pos != files.end(); ++pos) { + vector<char> contents; + if (!GetFileContents(pos->second, &contents)) { + return false; + } + + // Now append the upload files as a binary (octet-stream) part + string filename_utf8 = WideToUTF8(pos->second); + if (filename_utf8.empty()) { + return false; + } + + string file_part_name_utf8 = WideToUTF8(pos->first); + if (file_part_name_utf8.empty()) { + return false; + } + + request_body->append("--" + boundary_str + "\r\n"); + request_body->append("Content-Disposition: form-data; " + "name=\"" + file_part_name_utf8 + "\"; " + "filename=\"" + filename_utf8 + "\"\r\n"); + request_body->append("Content-Type: application/octet-stream\r\n"); + request_body->append("\r\n"); + + if (!contents.empty()) { + request_body->append(&(contents[0]), contents.size()); + } + request_body->append("\r\n"); + } + request_body->append("--" + boundary_str + "--\r\n"); + return true; +} + +// static +bool HTTPUpload::GetFileContents(const wstring &filename, + vector<char> *contents) { + bool rv = false; + // The "open" method on pre-MSVC8 ifstream implementations doesn't accept a + // wchar_t* filename, so use _wfopen directly in that case. For VC8 and + // later, _wfopen has been deprecated in favor of _wfopen_s, which does + // not exist in earlier versions, so let the ifstream open the file itself. + // GCC doesn't support wide file name and opening on FILE* requires ugly + // hacks, so fallback to multi byte file. +#ifdef _MSC_VER + ifstream file; + file.open(filename.c_str(), ios::binary); +#else // GCC + ifstream file(WideToMBCP(filename, CP_ACP).c_str(), ios::binary); +#endif // _MSC_VER >= 1400 + if (file.is_open()) { + file.seekg(0, ios::end); + std::streamoff length = file.tellg(); + // Check for loss of data when converting lenght from std::streamoff into + // std::vector<char>::size_type + std::vector<char>::size_type vector_size = + static_cast<std::vector<char>::size_type>(length); + if (static_cast<std::streamoff>(vector_size) == length) { + contents->resize(vector_size); + if (length != 0) { + file.seekg(0, ios::beg); + file.read(&((*contents)[0]), length); + } + rv = true; + } + file.close(); + } + return rv; +} + +// static +wstring HTTPUpload::UTF8ToWide(const string &utf8) { + if (utf8.length() == 0) { + return wstring(); + } + + // compute the length of the buffer we'll need + int charcount = MultiByteToWideChar(CP_UTF8, 0, utf8.c_str(), -1, NULL, 0); + + if (charcount == 0) { + return wstring(); + } + + // convert + wchar_t* buf = new wchar_t[charcount]; + MultiByteToWideChar(CP_UTF8, 0, utf8.c_str(), -1, buf, charcount); + wstring result(buf); + delete[] buf; + return result; +} + +// static +string HTTPUpload::WideToMBCP(const wstring &wide, unsigned int cp) { + if (wide.length() == 0) { + return string(); + } + + // compute the length of the buffer we'll need + int charcount = WideCharToMultiByte(cp, 0, wide.c_str(), -1, + NULL, 0, NULL, NULL); + if (charcount == 0) { + return string(); + } + + // convert + char *buf = new char[charcount]; + WideCharToMultiByte(cp, 0, wide.c_str(), -1, buf, charcount, + NULL, NULL); + + string result(buf); + delete[] buf; + return result; +} + +// static +bool HTTPUpload::CheckParameters(const map<wstring, wstring> ¶meters) { + for (map<wstring, wstring>::const_iterator pos = parameters.begin(); + pos != parameters.end(); ++pos) { + const wstring &str = pos->first; + if (str.size() == 0) { + return false; // disallow empty parameter names + } + for (unsigned int i = 0; i < str.size(); ++i) { + wchar_t c = str[i]; + if (c < 32 || c == '"' || c > 127) { + return false; + } + } + } + return true; +} + +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/common/windows/http_upload.h b/3rdParty/Breakpad/src/common/windows/http_upload.h new file mode 100644 index 0000000..f8d48cb --- /dev/null +++ b/3rdParty/Breakpad/src/common/windows/http_upload.h @@ -0,0 +1,129 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// HTTPUpload provides a "nice" API to send a multipart HTTP(S) POST +// request using wininet. It currently supports requests that contain +// a set of string parameters (key/value pairs), and a file to upload. + +#ifndef COMMON_WINDOWS_HTTP_UPLOAD_H_ +#define COMMON_WINDOWS_HTTP_UPLOAD_H_ + +#pragma warning(push) +// Disable exception handler warnings. +#pragma warning(disable : 4530) + +#include <windows.h> +#include <wininet.h> + +#include <map> +#include <string> +#include <vector> + +namespace google_breakpad { + +using std::string; +using std::wstring; +using std::map; +using std::vector; + +class HTTPUpload { + public: + // Sends the given sets of parameters and files as a multipart POST + // request to the given URL. + // Each key in |files| is the name of the file part of the request + // (i.e. it corresponds to the name= attribute on an <input type="file">. + // Parameter names must contain only printable ASCII characters, + // and may not contain a quote (") character. + // Only HTTP(S) URLs are currently supported. Returns true on success. + // If the request is successful and response_body is non-NULL, + // the response body will be returned in response_body. + // If response_code is non-NULL, it will be set to the HTTP response code + // received (or 0 if the request failed before getting an HTTP response). + static bool SendRequest(const wstring &url, + const map<wstring, wstring> ¶meters, + const map<wstring, wstring> &files, + int *timeout, + wstring *response_body, + int *response_code); + + private: + class AutoInternetHandle; + + // Retrieves the HTTP response. If NULL is passed in for response, + // this merely checks (via the return value) that we were successfully + // able to retrieve exactly as many bytes of content in the response as + // were specified in the Content-Length header. + static bool ReadResponse(HINTERNET request, wstring* response); + + // Generates a new multipart boundary for a POST request + static wstring GenerateMultipartBoundary(); + + // Generates a HTTP request header for a multipart form submit. + static wstring GenerateRequestHeader(const wstring &boundary); + + // Given a set of parameters, a set of upload files, and a file part name, + // generates a multipart request body string with these parameters + // and minidump contents. Returns true on success. + static bool GenerateRequestBody(const map<wstring, wstring> ¶meters, + const map<wstring, wstring> &files, + const wstring &boundary, + string *request_body); + + // Fills the supplied vector with the contents of filename. + static bool GetFileContents(const wstring &filename, vector<char> *contents); + + // Converts a UTF8 string to UTF16. + static wstring UTF8ToWide(const string &utf8); + + // Converts a UTF16 string to UTF8. + static string WideToUTF8(const wstring &wide) { + return WideToMBCP(wide, CP_UTF8); + } + + // Converts a UTF16 string to specified code page. + static string WideToMBCP(const wstring &wide, unsigned int cp); + + // Checks that the given list of parameters has only printable + // ASCII characters in the parameter name, and does not contain + // any quote (") characters. Returns true if so. + static bool CheckParameters(const map<wstring, wstring> ¶meters); + + // No instances of this class should be created. + // Disallow all constructors, destructors, and operator=. + HTTPUpload(); + explicit HTTPUpload(const HTTPUpload &); + void operator=(const HTTPUpload &); + ~HTTPUpload(); +}; + +} // namespace google_breakpad + +#pragma warning(pop) + +#endif // COMMON_WINDOWS_HTTP_UPLOAD_H_ diff --git a/3rdParty/Breakpad/src/common/windows/omap.cc b/3rdParty/Breakpad/src/common/windows/omap.cc new file mode 100644 index 0000000..ba3ce86 --- /dev/null +++ b/3rdParty/Breakpad/src/common/windows/omap.cc @@ -0,0 +1,716 @@ +// Copyright 2013 Google Inc. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// This contains a suite of tools for transforming symbol information when +// when that information has been extracted from a PDB containing OMAP +// information. + +// OMAP information is a lightweight description of a mapping between two +// address spaces. It consists of two streams, each of them a vector 2-tuples. +// The OMAPTO stream contains tuples of the form +// +// (RVA in transformed image, RVA in original image) +// +// while the OMAPFROM stream contains tuples of the form +// +// (RVA in original image, RVA in transformed image) +// +// The entries in each vector are sorted by the first value of the tuple, and +// the lengths associated with a mapping are implicit as the distance between +// two successive addresses in the vector. + +// Consider a trivial 10-byte function described by the following symbol: +// +// Function: RVA 0x00001000, length 10, "foo" +// +// Now consider the same function, but with 5-bytes of instrumentation injected +// at offset 5. The OMAP streams describing this would look like: +// +// OMAPTO : [ [0x00001000, 0x00001000], +// [0x00001005, 0xFFFFFFFF], +// [0x0000100a, 0x00001005] ] +// OMAPFROM: [ [0x00001000, 0x00001000], +// [0x00001005, 0x0000100a] ] +// +// In this case the injected code has been marked as not originating in the +// source image, and thus it will have no symbol information at all. However, +// the injected code may also be associated with an original address range; +// for example, when prepending instrumentation to a basic block the +// instrumentation can be labelled as originating from the same source BB such +// that symbol resolution will still find the appropriate source code line +// number. In this case the OMAP stream would look like: +// +// OMAPTO : [ [0x00001000, 0x00001000], +// [0x00001005, 0x00001005], +// [0x0000100a, 0x00001005] ] +// OMAPFROM: [ [0x00001000, 0x00001000], +// [0x00001005, 0x0000100a] ] +// +// Suppose we asked DIA to lookup the symbol at location 0x0000100a of the +// instrumented image. It would first run this through the OMAPTO table and +// translate that address to 0x00001005. It would then lookup the symbol +// at that address and return the symbol for the function "foo". This is the +// correct result. +// +// However, if we query DIA for the length and address of the symbol it will +// tell us that it has length 10 and is at RVA 0x00001000. The location is +// correct, but the length doesn't take into account the 5-bytes of injected +// code. Symbol resolution works (starting from an instrumented address, +// mapping to an original address, and looking up a symbol), but the symbol +// metadata is incorrect. +// +// If we dump the symbols using DIA they will have their addresses +// appropriately transformed and reflect positions in the instrumented image. +// However, if we try to do a lookup using those symbols resolution can fail. +// For example, the address 0x0000100a will not map to the symbol for "foo", +// because DIA tells us it is at location 0x00001000 (correct) with length +// 10 (incorrect). The problem is one of order of operations: in this case +// we're attempting symbol resolution by looking up an instrumented address +// in the table of translated symbols. +// +// One way to handle this is to dump the OMAP information as part of the +// breakpad symbols. This requires the rest of the toolchain to be aware of +// OMAP information and to use it when present prior to performing lookup. The +// other option is to properly transform the symbols (updating length as well as +// position) so that resolution will work as expected for translated addresses. +// This is transparent to the rest of the toolchain. + +#include "common/windows/omap.h" + +#include <atlbase.h> + +#include <algorithm> +#include <cassert> +#include <set> + +#include "common/windows/dia_util.h" + +namespace google_breakpad { + +namespace { + +static const wchar_t kOmapToDebugStreamName[] = L"OMAPTO"; +static const wchar_t kOmapFromDebugStreamName[] = L"OMAPFROM"; + +// Dependending on where this is used in breakpad we sometimes get min/max from +// windef, and other times from algorithm. To get around this we simply +// define our own min/max functions. +template<typename T> +const T& Min(const T& t1, const T& t2) { return t1 < t2 ? t1 : t2; } +template<typename T> +const T& Max(const T& t1, const T& t2) { return t1 > t2 ? t1 : t2; } + +// It makes things more readable to have two different OMAP types. We cast +// normal OMAPs into these. They must be the same size as the OMAP structure +// for this to work, hence the static asserts. +struct OmapOrigToTran { + DWORD rva_original; + DWORD rva_transformed; +}; +struct OmapTranToOrig { + DWORD rva_transformed; + DWORD rva_original; +}; +static_assert(sizeof(OmapOrigToTran) == sizeof(OMAP), + "OmapOrigToTran must have same size as OMAP."); +static_assert(sizeof(OmapTranToOrig) == sizeof(OMAP), + "OmapTranToOrig must have same size as OMAP."); +typedef std::vector<OmapOrigToTran> OmapFromTable; +typedef std::vector<OmapTranToOrig> OmapToTable; + +// Used for sorting and searching through a Mapping. +bool MappedRangeOriginalLess(const MappedRange& lhs, const MappedRange& rhs) { + if (lhs.rva_original < rhs.rva_original) + return true; + if (lhs.rva_original > rhs.rva_original) + return false; + return lhs.length < rhs.length; +} +bool MappedRangeMappedLess(const MappedRange& lhs, const MappedRange& rhs) { + if (lhs.rva_transformed < rhs.rva_transformed) + return true; + if (lhs.rva_transformed > rhs.rva_transformed) + return false; + return lhs.length < rhs.length; +} + +// Used for searching through the EndpointIndexMap. +bool EndpointIndexLess(const EndpointIndex& ei1, const EndpointIndex& ei2) { + return ei1.endpoint < ei2.endpoint; +} + +// Finds the debug stream with the given |name| in the given |session|, and +// populates |table| with its contents. Casts the data directly into OMAP +// structs. +bool FindAndLoadOmapTable(const wchar_t* name, + IDiaSession* session, + OmapTable* table) { + assert(name != NULL); + assert(session != NULL); + assert(table != NULL); + + CComPtr<IDiaEnumDebugStreamData> stream; + if (!FindDebugStream(name, session, &stream)) + return false; + assert(stream.p != NULL); + + LONG count = 0; + if (FAILED(stream->get_Count(&count))) { + fprintf(stderr, "IDiaEnumDebugStreamData::get_Count failed for stream " + "\"%ws\"\n", name); + return false; + } + + // Get the length of the stream in bytes. + DWORD bytes_read = 0; + ULONG count_read = 0; + if (FAILED(stream->Next(count, 0, &bytes_read, NULL, &count_read))) { + fprintf(stderr, "IDiaEnumDebugStreamData::Next failed while reading " + "length of stream \"%ws\"\n", name); + return false; + } + + // Ensure it's consistent with the OMAP data type. + DWORD bytes_expected = count * sizeof(OmapTable::value_type); + if (count * sizeof(OmapTable::value_type) != bytes_read) { + fprintf(stderr, "DIA debug stream \"%ws\" has an unexpected length", name); + return false; + } + + // Read the table. + table->resize(count); + bytes_read = 0; + count_read = 0; + if (FAILED(stream->Next(count, bytes_expected, &bytes_read, + reinterpret_cast<BYTE*>(&table->at(0)), + &count_read))) { + fprintf(stderr, "IDiaEnumDebugStreamData::Next failed while reading " + "data from stream \"%ws\"\n", name); + return false; + } + + return true; +} + +// This determines the original image length by looking through the segment +// table. +bool GetOriginalImageLength(IDiaSession* session, DWORD* image_length) { + assert(session != NULL); + assert(image_length != NULL); + + CComPtr<IDiaEnumSegments> enum_segments; + if (!FindTable(session, &enum_segments)) + return false; + assert(enum_segments.p != NULL); + + DWORD temp_image_length = 0; + CComPtr<IDiaSegment> segment; + ULONG fetched = 0; + while (SUCCEEDED(enum_segments->Next(1, &segment, &fetched)) && + fetched == 1) { + assert(segment.p != NULL); + + DWORD rva = 0; + DWORD length = 0; + DWORD frame = 0; + if (FAILED(segment->get_relativeVirtualAddress(&rva)) || + FAILED(segment->get_length(&length)) || + FAILED(segment->get_frame(&frame))) { + fprintf(stderr, "Failed to get basic properties for IDiaSegment\n"); + return false; + } + + if (frame > 0) { + DWORD segment_end = rva + length; + if (segment_end > temp_image_length) + temp_image_length = segment_end; + } + segment.Release(); + } + + *image_length = temp_image_length; + return true; +} + +// Detects regions of the original image that have been removed in the +// transformed image, and sets the 'removed' property on all mapped ranges +// immediately preceding a gap. The mapped ranges must be sorted by +// 'rva_original'. +void FillInRemovedLengths(Mapping* mapping) { + assert(mapping != NULL); + + // Find and fill gaps. We do this with two sweeps. We first sweep forward + // looking for gaps. When we identify a gap we then sweep forward with a + // second scan and set the 'removed' property for any intervals that + // immediately precede the gap. + // + // Gaps are typically between two successive intervals, but not always: + // + // Range 1: --------------- + // Range 2: ------- + // Range 3: ------------- + // Gap : ****** + // + // In the above example the gap is between range 1 and range 3. A forward + // sweep finds the gap, and a second forward sweep identifies that range 1 + // immediately precedes the gap and sets its 'removed' property. + + size_t fill = 0; + DWORD rva_front = 0; + for (size_t find = 0; find < mapping->size(); ++find) { +#ifndef NDEBUG + // We expect the mapped ranges to be sorted by 'rva_original'. + if (find > 0) { + assert(mapping->at(find - 1).rva_original <= + mapping->at(find).rva_original); + } +#endif + + if (rva_front < mapping->at(find).rva_original) { + // We've found a gap. Fill it in by setting the 'removed' property for + // any affected intervals. + DWORD removed = mapping->at(find).rva_original - rva_front; + for (; fill < find; ++fill) { + if (mapping->at(fill).rva_original + mapping->at(fill).length != + rva_front) { + continue; + } + + // This interval ends right where the gap starts. It needs to have its + // 'removed' information filled in. + mapping->at(fill).removed = removed; + } + } + + // Advance the front that indicates the covered portion of the image. + rva_front = mapping->at(find).rva_original + mapping->at(find).length; + } +} + +// Builds a unified view of the mapping between the original and transformed +// image space by merging OMAPTO and OMAPFROM data. +void BuildMapping(const OmapData& omap_data, Mapping* mapping) { + assert(mapping != NULL); + + mapping->clear(); + + if (omap_data.omap_from.empty() || omap_data.omap_to.empty()) + return; + + // The names 'omap_to' and 'omap_from' are awfully confusing, so we make + // ourselves more explicit here. This cast is only safe because the underlying + // types have the exact same size. + const OmapToTable& tran2orig = + reinterpret_cast<const OmapToTable&>(omap_data.omap_to); + const OmapFromTable& orig2tran = reinterpret_cast<const OmapFromTable&>( + omap_data.omap_from); + + // Handle the range of data at the beginning of the image. This is not usually + // specified by the OMAP data. + if (tran2orig[0].rva_transformed > 0 && orig2tran[0].rva_original > 0) { + DWORD header_transformed = tran2orig[0].rva_transformed; + DWORD header_original = orig2tran[0].rva_original; + DWORD header = Min(header_transformed, header_original); + + MappedRange mr = {}; + mr.length = header; + mr.injected = header_transformed - header; + mr.removed = header_original - header; + mapping->push_back(mr); + } + + // Convert the implied lengths to explicit lengths, and infer which content + // has been injected into the transformed image. Injected content is inferred + // as regions of the transformed address space that does not map back to + // known valid content in the original image. + for (size_t i = 0; i < tran2orig.size(); ++i) { + const OmapTranToOrig& o1 = tran2orig[i]; + + // This maps to content that is outside the original image, thus it + // describes injected content. We can skip this entry. + if (o1.rva_original >= omap_data.length_original) + continue; + + // Calculate the length of the current OMAP entry. This is implicit as the + // distance between successive |rva| values, capped at the end of the + // original image. + DWORD length = 0; + if (i + 1 < tran2orig.size()) { + const OmapTranToOrig& o2 = tran2orig[i + 1]; + + // We expect the table to be sorted by rva_transformed. + assert(o1.rva_transformed <= o2.rva_transformed); + + length = o2.rva_transformed - o1.rva_transformed; + if (o1.rva_original + length > omap_data.length_original) { + length = omap_data.length_original - o1.rva_original; + } + } else { + length = omap_data.length_original - o1.rva_original; + } + + // Zero-length entries don't describe anything and can be ignored. + if (length == 0) + continue; + + // Any gaps in the transformed address-space are due to injected content. + if (!mapping->empty()) { + MappedRange& prev_mr = mapping->back(); + prev_mr.injected += o1.rva_transformed - + (prev_mr.rva_transformed + prev_mr.length); + } + + MappedRange mr = {}; + mr.rva_original = o1.rva_original; + mr.rva_transformed = o1.rva_transformed; + mr.length = length; + mapping->push_back(mr); + } + + // Sort based on the original image addresses. + std::sort(mapping->begin(), mapping->end(), MappedRangeOriginalLess); + + // Fill in the 'removed' lengths by looking for gaps in the coverage of the + // original address space. + FillInRemovedLengths(mapping); + + return; +} + +void BuildEndpointIndexMap(ImageMap* image_map) { + assert(image_map != NULL); + + if (image_map->mapping.size() == 0) + return; + + const Mapping& mapping = image_map->mapping; + EndpointIndexMap& eim = image_map->endpoint_index_map; + + // Get the unique set of interval endpoints. + std::set<DWORD> endpoints; + for (size_t i = 0; i < mapping.size(); ++i) { + endpoints.insert(mapping[i].rva_original); + endpoints.insert(mapping[i].rva_original + + mapping[i].length + + mapping[i].removed); + } + + // Use the endpoints to initialize the secondary search structure for the + // mapping. + eim.resize(endpoints.size()); + std::set<DWORD>::const_iterator it = endpoints.begin(); + for (size_t i = 0; it != endpoints.end(); ++it, ++i) { + eim[i].endpoint = *it; + eim[i].index = mapping.size(); + } + + // For each endpoint we want the smallest index of any interval containing + // it. We iterate over the intervals and update the indices associated with + // each interval endpoint contained in the current interval. In the general + // case of an arbitrary set of intervals this is O(n^2), but the structure of + // OMAP data makes this O(n). + for (size_t i = 0; i < mapping.size(); ++i) { + EndpointIndex ei1 = { mapping[i].rva_original, 0 }; + EndpointIndexMap::iterator it1 = std::lower_bound( + eim.begin(), eim.end(), ei1, EndpointIndexLess); + + EndpointIndex ei2 = { mapping[i].rva_original + mapping[i].length + + mapping[i].removed, 0 }; + EndpointIndexMap::iterator it2 = std::lower_bound( + eim.begin(), eim.end(), ei2, EndpointIndexLess); + + for (; it1 != it2; ++it1) + it1->index = Min(i, it1->index); + } +} + +void BuildSubsequentRVAMap(const OmapData &omap_data, + std::map<DWORD, DWORD> *subsequent) { + assert(subsequent->empty()); + const OmapFromTable &orig2tran = + reinterpret_cast<const OmapFromTable &>(omap_data.omap_from); + + if (orig2tran.empty()) + return; + + for (size_t i = 0; i < orig2tran.size() - 1; ++i) { + // Expect that orig2tran is sorted. + if (orig2tran[i].rva_original >= orig2tran[i + 1].rva_original) { + fprintf(stderr, "OMAP 'from' table unexpectedly unsorted\n"); + subsequent->clear(); + return; + } + subsequent->insert(std::make_pair(orig2tran[i].rva_original, + orig2tran[i + 1].rva_original)); + } +} + +// Clips the given mapped range. +void ClipMappedRangeOriginal(const AddressRange& clip_range, + MappedRange* mapped_range) { + assert(mapped_range != NULL); + + // The clipping range is entirely outside of the mapped range. + if (clip_range.end() <= mapped_range->rva_original || + mapped_range->rva_original + mapped_range->length + + mapped_range->removed <= clip_range.rva) { + mapped_range->length = 0; + mapped_range->injected = 0; + mapped_range->removed = 0; + return; + } + + // Clip the left side. + if (mapped_range->rva_original < clip_range.rva) { + DWORD clip_left = clip_range.rva - mapped_range->rva_original; + mapped_range->rva_original += clip_left; + mapped_range->rva_transformed += clip_left; + + if (clip_left > mapped_range->length) { + // The left clipping boundary entirely erases the content section of the + // range. + DWORD trim = clip_left - mapped_range->length; + mapped_range->length = 0; + mapped_range->injected -= Min(trim, mapped_range->injected); + // We know that trim <= mapped_range->remove. + mapped_range->removed -= trim; + } else { + // The left clipping boundary removes some, but not all, of the content. + // As such it leaves the removed/injected component intact. + mapped_range->length -= clip_left; + } + } + + // Clip the right side. + DWORD end_original = mapped_range->rva_original + mapped_range->length; + if (clip_range.end() < end_original) { + // The right clipping boundary lands in the 'content' section of the range, + // entirely clearing the injected/removed portion. + DWORD clip_right = end_original - clip_range.end(); + mapped_range->length -= clip_right; + mapped_range->injected = 0; + mapped_range->removed = 0; + return; + } else { + // The right clipping boundary is outside of the content, but may affect + // the removed/injected portion of the range. + DWORD end_removed = end_original + mapped_range->removed; + if (clip_range.end() < end_removed) + mapped_range->removed = clip_range.end() - end_original; + + DWORD end_injected = end_original + mapped_range->injected; + if (clip_range.end() < end_injected) + mapped_range->injected = clip_range.end() - end_original; + } + + return; +} + +} // namespace + +int AddressRange::Compare(const AddressRange& rhs) const { + if (end() <= rhs.rva) + return -1; + if (rhs.end() <= rva) + return 1; + return 0; +} + +bool GetOmapDataAndDisableTranslation(IDiaSession* session, + OmapData* omap_data) { + assert(session != NULL); + assert(omap_data != NULL); + + CComPtr<IDiaAddressMap> address_map; + if (FAILED(session->QueryInterface(&address_map))) { + fprintf(stderr, "IDiaSession::QueryInterface(IDiaAddressMap) failed\n"); + return false; + } + assert(address_map.p != NULL); + + BOOL omap_enabled = FALSE; + if (FAILED(address_map->get_addressMapEnabled(&omap_enabled))) { + fprintf(stderr, "IDiaAddressMap::get_addressMapEnabled failed\n"); + return false; + } + + if (!omap_enabled) { + // We indicate the non-presence of OMAP data by returning empty tables. + omap_data->omap_from.clear(); + omap_data->omap_to.clear(); + omap_data->length_original = 0; + return true; + } + + // OMAP data is present. Disable translation. + if (FAILED(address_map->put_addressMapEnabled(FALSE))) { + fprintf(stderr, "IDiaAddressMap::put_addressMapEnabled failed\n"); + return false; + } + + // Read the OMAP streams. + if (!FindAndLoadOmapTable(kOmapFromDebugStreamName, + session, + &omap_data->omap_from)) { + return false; + } + if (!FindAndLoadOmapTable(kOmapToDebugStreamName, + session, + &omap_data->omap_to)) { + return false; + } + + // Get the lengths of the address spaces. + if (!GetOriginalImageLength(session, &omap_data->length_original)) + return false; + + return true; +} + +void BuildImageMap(const OmapData& omap_data, ImageMap* image_map) { + assert(image_map != NULL); + + BuildMapping(omap_data, &image_map->mapping); + BuildEndpointIndexMap(image_map); + BuildSubsequentRVAMap(omap_data, &image_map->subsequent_rva_block); +} + +void MapAddressRange(const ImageMap& image_map, + const AddressRange& original_range, + AddressRangeVector* mapped_ranges) { + assert(mapped_ranges != NULL); + + const Mapping& map = image_map.mapping; + + // Handle the trivial case of an empty image_map. This means that there is + // no transformation to be applied, and we can simply return the original + // range. + if (map.empty()) { + mapped_ranges->push_back(original_range); + return; + } + + // If we get a query of length 0 we need to handle it by using a non-zero + // query length. + AddressRange query_range(original_range); + if (query_range.length == 0) + query_range.length = 1; + + // Find the range of intervals that can potentially intersect our query range. + size_t imin = 0; + size_t imax = 0; + { + // The index of the earliest possible range that can affect is us done by + // searching through the secondary indexing structure. + const EndpointIndexMap& eim = image_map.endpoint_index_map; + EndpointIndex q1 = { query_range.rva, 0 }; + EndpointIndexMap::const_iterator it1 = std::lower_bound( + eim.begin(), eim.end(), q1, EndpointIndexLess); + if (it1 == eim.end()) { + imin = map.size(); + } else { + // Backup to find the interval that contains our query point. + if (it1 != eim.begin() && query_range.rva < it1->endpoint) + --it1; + imin = it1->index; + } + + // The first range that can't possibly intersect us is found by searching + // through the image map directly as it is already sorted by interval start + // point. + MappedRange q2 = { query_range.end(), 0 }; + Mapping::const_iterator it2 = std::lower_bound( + map.begin(), map.end(), q2, MappedRangeOriginalLess); + imax = it2 - map.begin(); + } + + // Find all intervals that intersect the query range. + Mapping temp_map; + for (size_t i = imin; i < imax; ++i) { + MappedRange mr = map[i]; + ClipMappedRangeOriginal(query_range, &mr); + if (mr.length + mr.injected > 0) + temp_map.push_back(mr); + } + + // If there are no intersecting ranges then the query range has been removed + // from the image in question. + if (temp_map.empty()) + return; + + // Sort based on transformed addresses. + std::sort(temp_map.begin(), temp_map.end(), MappedRangeMappedLess); + + // Zero-length queries can't actually be merged. We simply output the set of + // unique RVAs that correspond to the query RVA. + if (original_range.length == 0) { + mapped_ranges->push_back(AddressRange(temp_map[0].rva_transformed, 0)); + for (size_t i = 1; i < temp_map.size(); ++i) { + if (temp_map[i].rva_transformed > mapped_ranges->back().rva) + mapped_ranges->push_back(AddressRange(temp_map[i].rva_transformed, 0)); + } + return; + } + + // Merge any ranges that are consecutive in the mapped image. We merge over + // injected content if it makes ranges contiguous, but we ignore any injected + // content at the tail end of a range. This allows us to detect symbols that + // have been lengthened by injecting content in the middle. However, it + // misses the case where content has been injected at the head or the tail. + // The problem is that it doesn't know whether to attribute it to the + // preceding or following symbol. It is up to the author of the transform to + // output explicit OMAP info in these cases to ensure full coverage of the + // transformed address space. + DWORD rva_begin = temp_map[0].rva_transformed; + DWORD rva_cur_content = rva_begin + temp_map[0].length; + DWORD rva_cur_injected = rva_cur_content + temp_map[0].injected; + for (size_t i = 1; i < temp_map.size(); ++i) { + if (rva_cur_injected < temp_map[i].rva_transformed) { + // This marks the end of a continuous range in the image. Output the + // current range and start a new one. + if (rva_begin < rva_cur_content) { + mapped_ranges->push_back( + AddressRange(rva_begin, rva_cur_content - rva_begin)); + } + rva_begin = temp_map[i].rva_transformed; + } + + rva_cur_content = temp_map[i].rva_transformed + temp_map[i].length; + rva_cur_injected = rva_cur_content + temp_map[i].injected; + } + + // Output the range in progress. + if (rva_begin < rva_cur_content) { + mapped_ranges->push_back( + AddressRange(rva_begin, rva_cur_content - rva_begin)); + } + + return; +} + +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/common/windows/omap.h b/3rdParty/Breakpad/src/common/windows/omap.h new file mode 100644 index 0000000..bc293af --- /dev/null +++ b/3rdParty/Breakpad/src/common/windows/omap.h @@ -0,0 +1,72 @@ +// Copyright 2013 Google Inc. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Provides an API for mapping symbols through OMAP information, if a PDB file +// is augmented with it. This allows breakpad to work with addresses in +// transformed images by transforming the symbols themselves, rather than +// transforming addresses prior to querying symbols (the way it is typically +// done by Windows-native tools, including the DIA). + +#ifndef COMMON_WINDOWS_OMAP_H_ +#define COMMON_WINDOWS_OMAP_H_ + +#include "common/windows/omap_internal.h" + +namespace google_breakpad { + +// If the given session contains OMAP data this extracts it, populating +// |omap_data|, and then disabling automatic translation for the session. +// OMAP data is present in the PDB if |omap_data| is not empty. This returns +// true on success, false otherwise. +bool GetOmapDataAndDisableTranslation(IDiaSession* dia_session, + OmapData* omap_data); + +// Given raw OMAP data builds an ImageMap. This can be used to query individual +// image ranges using MapAddressRange. +// |omap_data|| is the OMAP data extracted from the PDB. +// |image_map| will be populated with a description of the image mapping. If +// |omap_data| is empty then this will also be empty. +void BuildImageMap(const OmapData& omap_data, ImageMap* image_map); + +// Given an address range in the original image space determines how exactly it +// has been tranformed. +// |omap_data| is the OMAP data extracted from the PDB, which must not be +// empty. +// |original_range| is the address range in the original image being queried. +// |mapped_ranges| will be populated with a full description of the mapping. +// They may be disjoint in the transformed image so a vector is needed to +// fully represent the mapping. This will be appended to if it is not +// empty. If |omap_data| is empty then |mapped_ranges| will simply be +// populated with a copy of |original_range| (the identity transform). +void MapAddressRange(const ImageMap& image_map, + const AddressRange& original_range, + AddressRangeVector* mapped_ranges); + +} // namespace google_breakpad + +#endif // COMMON_WINDOWS_OMAP_H_ diff --git a/3rdParty/Breakpad/src/common/windows/omap_internal.h b/3rdParty/Breakpad/src/common/windows/omap_internal.h new file mode 100644 index 0000000..2a4713d --- /dev/null +++ b/3rdParty/Breakpad/src/common/windows/omap_internal.h @@ -0,0 +1,140 @@ +// Copyright 2013 Google Inc. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Declares internal implementation details for functionality in omap.h and +// omap.cc. + +#ifndef COMMON_WINDOWS_OMAP_INTERNAL_H_ +#define COMMON_WINDOWS_OMAP_INTERNAL_H_ + +#include <windows.h> +#include <dia2.h> + +#include <map> +#include <vector> + +namespace google_breakpad { + +// The OMAP struct is defined by debughlp.h, which doesn't play nicely with +// imagehlp.h. We simply redefine it. +struct OMAP { + DWORD rva; + DWORD rvaTo; +}; +static_assert(sizeof(OMAP) == 8, "Wrong size for OMAP structure."); +typedef std::vector<OMAP> OmapTable; + +// This contains the OMAP data extracted from an image. +struct OmapData { + // The table of OMAP entries describing the transformation from the + // original image to the transformed image. + OmapTable omap_from; + // The table of OMAP entries describing the transformation from the + // instrumented image to the original image. + OmapTable omap_to; + // The length of the original untransformed image. + DWORD length_original; + + OmapData() : length_original(0) { } +}; + +// This represents a range of addresses in an image. +struct AddressRange { + DWORD rva; + DWORD length; + + AddressRange() : rva(0), length(0) { } + AddressRange(DWORD rva, DWORD length) : rva(rva), length(length) { } + + // Returns the end address of this range. + DWORD end() const { return rva + length; } + + // Addreses only compare as less-than or greater-than if they are not + // overlapping. Otherwise, they compare equal. + int Compare(const AddressRange& rhs) const; + bool operator<(const AddressRange& rhs) const { return Compare(rhs) == -1; } + bool operator>(const AddressRange& rhs) const { return Compare(rhs) == 1; } + + // Equality operators compare exact values. + bool operator==(const AddressRange& rhs) const { + return rva == rhs.rva && length == rhs.length; + } + bool operator!=(const AddressRange& rhs) const { return !((*this) == rhs); } +}; + +typedef std::vector<AddressRange> AddressRangeVector; + +// This represents an address range in an original image, and its corresponding +// range in the transformed image. +struct MappedRange { + // An address in the original image. + DWORD rva_original; + // The corresponding addresses in the transformed image. + DWORD rva_transformed; + // The length of the address range. + DWORD length; + // It is possible for code to be injected into a transformed image, for which + // there is no corresponding code in the original image. If this range of + // transformed image is immediately followed by such injected code we maintain + // a record of its length here. + DWORD injected; + // It is possible for code to be removed from the original image. This happens + // for things like padding between blocks. There is no actual content lost, + // but the spacing between items may be lost. This keeps track of any removed + // content immediately following the |original| range. + DWORD removed; +}; +// A vector of mapped ranges is used as a more useful representation of +// OMAP data. +typedef std::vector<MappedRange> Mapping; + +// Used as a secondary search structure accompanying a Mapping. +struct EndpointIndex { + DWORD endpoint; + size_t index; +}; +typedef std::vector<EndpointIndex> EndpointIndexMap; + +// An ImageMap is vector of mapped ranges, plus a secondary index into it for +// doing interval searches. (An interval tree would also work, but is overkill +// because we don't need insertion and deletion.) +struct ImageMap { + // This is a description of the mapping between original and transformed + // image, sorted by addresses in the original image. + Mapping mapping; + // For all interval endpoints in |mapping| this stores the minimum index of + // an interval in |mapping| that contains the endpoint. Useful for doing + // interval intersection queries. + EndpointIndexMap endpoint_index_map; + + std::map<DWORD, DWORD> subsequent_rva_block; +}; + +} // namespace google_breakpad + +#endif // COMMON_WINDOWS_OMAP_INTERNAL_H_ diff --git a/3rdParty/Breakpad/src/common/windows/omap_unittest.cc b/3rdParty/Breakpad/src/common/windows/omap_unittest.cc new file mode 100644 index 0000000..b244334 --- /dev/null +++ b/3rdParty/Breakpad/src/common/windows/omap_unittest.cc @@ -0,0 +1,329 @@ +// Copyright 2013 Google Inc. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Unittests for OMAP related functions. + +#include "common/windows/omap.h" + +#include "breakpad_googletest_includes.h" + +namespace google_breakpad { + +// Equality operators for ContainerEq. These must be outside of the anonymous +// namespace in order for them to be found. +bool operator==(const MappedRange& mr1, const MappedRange& mr2) { + return mr1.rva_original == mr2.rva_original && + mr1.rva_transformed == mr2.rva_transformed && + mr1.length == mr2.length && + mr1.injected == mr2.injected && + mr1.removed == mr2.removed; +} +bool operator==(const EndpointIndex& ei1, const EndpointIndex& ei2) { + return ei1.endpoint == ei2.endpoint && ei1.index == ei2.index; +} + +// Pretty printers for more meaningful error messages. Also need to be outside +// the anonymous namespace. +std::ostream& operator<<(std::ostream& os, const MappedRange& mr) { + os << "MappedRange(rva_original=" << mr.rva_original + << ", rva_transformed=" << mr.rva_transformed + << ", length=" << mr.length + << ", injected=" << mr.injected + << ", removed=" << mr.removed << ")"; + return os; +} +std::ostream& operator<<(std::ostream& os, const EndpointIndex& ei) { + os << "EndpointIndex(endpoint=" << ei.endpoint + << ", index=" << ei.index << ")"; + return os; +} +std::ostream& operator<<(std::ostream& os, const AddressRange& ar) { + os << "AddressRange(rva=" << ar.rva << ", length=" << ar.length << ")"; + return os; +} + +namespace { + +OMAP CreateOmap(DWORD rva, DWORD rvaTo) { + OMAP o = { rva, rvaTo }; + return o; +} + +MappedRange CreateMappedRange(DWORD rva_original, + DWORD rva_transformed, + DWORD length, + DWORD injected, + DWORD removed) { + MappedRange mr = { rva_original, rva_transformed, length, injected, removed }; + return mr; +} + +EndpointIndex CreateEndpointIndex(DWORD endpoint, size_t index) { + EndpointIndex ei = { endpoint, index }; + return ei; +} + +// (C is removed) +// Original : A B C D E F G H +// Transformed: A B D F E * H1 G1 G2 H2 +// (* is injected, G is copied, H is split) +// A is implied. + +// Layout of the original image. +const AddressRange B(100, 15); +const AddressRange C(B.end(), 10); +const AddressRange D(C.end(), 25); +const AddressRange E(D.end(), 10); +const AddressRange F(E.end(), 40); +const AddressRange G(F.end(), 3); +const AddressRange H(G.end(), 7); + +// Layout of the transformed image. +const AddressRange Bt(100, 15); +const AddressRange Dt(Bt.end(), 20); // D is shortened. +const AddressRange Ft(Dt.end(), F.length); +const AddressRange Et(Ft.end(), E.length); +const AddressRange injected(Et.end(), 5); +const AddressRange H1t(injected.end(), 4); // H is split. +const AddressRange G1t(H1t.end(), G.length); // G is copied. +const AddressRange G2t(G1t.end(), G.length); // G is copied. +const AddressRange H2t(G2t.end(), 3); // H is split. + +class BuildImageMapTest : public testing::Test { + public: + static const DWORD kInvalidAddress = 0xFFFFFFFF; + + void InitOmapData() { + omap_data.length_original = H.end(); + + // Build the OMAPTO vector (from transformed to original). + omap_data.omap_to.push_back(CreateOmap(Bt.rva, B.rva)); + omap_data.omap_to.push_back(CreateOmap(Dt.rva, D.rva)); + omap_data.omap_to.push_back(CreateOmap(Ft.rva, F.rva)); + omap_data.omap_to.push_back(CreateOmap(Et.rva, E.rva)); + omap_data.omap_to.push_back(CreateOmap(injected.rva, kInvalidAddress)); + omap_data.omap_to.push_back(CreateOmap(H1t.rva, H.rva)); + omap_data.omap_to.push_back(CreateOmap(G1t.rva, G.rva)); + omap_data.omap_to.push_back(CreateOmap(G2t.rva, G.rva)); + omap_data.omap_to.push_back(CreateOmap(H2t.rva, H.rva + H1t.length)); + omap_data.omap_to.push_back(CreateOmap(H2t.end(), kInvalidAddress)); + + // Build the OMAPFROM vector (from original to transformed). + omap_data.omap_from.push_back(CreateOmap(B.rva, Bt.rva)); + omap_data.omap_from.push_back(CreateOmap(C.rva, kInvalidAddress)); + omap_data.omap_from.push_back(CreateOmap(D.rva, Dt.rva)); + omap_data.omap_from.push_back(CreateOmap(E.rva, Et.rva)); + omap_data.omap_from.push_back(CreateOmap(F.rva, Ft.rva)); + omap_data.omap_from.push_back(CreateOmap(G.rva, G1t.rva)); + omap_data.omap_from.push_back(CreateOmap(H.rva, H1t.rva)); + omap_data.omap_from.push_back(CreateOmap(H.rva + H1t.length, H2t.rva)); + omap_data.omap_from.push_back(CreateOmap(H.end(), kInvalidAddress)); + } + + OmapData omap_data; +}; + +} // namespace + +TEST_F(BuildImageMapTest, EmptyImageMapOnEmptyOmapData) { + ASSERT_EQ(0u, omap_data.omap_from.size()); + ASSERT_EQ(0u, omap_data.omap_to.size()); + ASSERT_EQ(0u, omap_data.length_original); + + ImageMap image_map; + BuildImageMap(omap_data, &image_map); + EXPECT_EQ(0u, image_map.mapping.size()); + EXPECT_EQ(0u, image_map.endpoint_index_map.size()); +} + +TEST_F(BuildImageMapTest, ImageMapIsCorrect) { + InitOmapData(); + ASSERT_LE(0u, omap_data.omap_from.size()); + ASSERT_LE(0u, omap_data.omap_to.size()); + ASSERT_LE(0u, omap_data.length_original); + + ImageMap image_map; + BuildImageMap(omap_data, &image_map); + EXPECT_LE(9u, image_map.mapping.size()); + EXPECT_LE(9u, image_map.endpoint_index_map.size()); + + Mapping mapping; + mapping.push_back(CreateMappedRange(0, 0, B.rva, 0, 0)); + // C is removed, and it originally comes immediately after B. + mapping.push_back(CreateMappedRange(B.rva, Bt.rva, B.length, 0, C.length)); + // D is shortened by a length of 5. + mapping.push_back(CreateMappedRange(D.rva, Dt.rva, Dt.length, 0, 5)); + // The injected content comes immediately after E in the transformed image. + mapping.push_back(CreateMappedRange(E.rva, Et.rva, E.length, injected.length, + 0)); + mapping.push_back(CreateMappedRange(F.rva, Ft.rva, F.length, 0, 0)); + // G is copied so creates two entries. + mapping.push_back(CreateMappedRange(G.rva, G1t.rva, G.length, 0, 0)); + mapping.push_back(CreateMappedRange(G.rva, G2t.rva, G.length, 0, 0)); + // H is split, so create two entries. + mapping.push_back(CreateMappedRange(H.rva, H1t.rva, H1t.length, 0, 0)); + mapping.push_back(CreateMappedRange(H.rva + H1t.length, H2t.rva, H2t.length, + 0, 0)); + EXPECT_THAT(mapping, + testing::ContainerEq(image_map.mapping)); + + EndpointIndexMap endpoint_index_map; + endpoint_index_map.push_back(CreateEndpointIndex(0, 0)); + endpoint_index_map.push_back(CreateEndpointIndex(B.rva, 1)); + endpoint_index_map.push_back(CreateEndpointIndex(D.rva, 2)); + endpoint_index_map.push_back(CreateEndpointIndex(E.rva, 3)); + endpoint_index_map.push_back(CreateEndpointIndex(F.rva, 4)); + // G is duplicated so 2 ranges map back to it, hence the skip from 5 to 7. + endpoint_index_map.push_back(CreateEndpointIndex(G.rva, 5)); + // H is split so we expect 2 endpoints to show up attributed to it. + endpoint_index_map.push_back(CreateEndpointIndex(H.rva, 7)); + endpoint_index_map.push_back(CreateEndpointIndex(H.rva + H1t.length, 8)); + endpoint_index_map.push_back(CreateEndpointIndex(H.end(), 9)); + EXPECT_THAT(endpoint_index_map, + testing::ContainerEq(image_map.endpoint_index_map)); +} + +namespace { + +class MapAddressRangeTest : public BuildImageMapTest { + public: + typedef BuildImageMapTest Super; + virtual void SetUp() { + Super::SetUp(); + InitOmapData(); + BuildImageMap(omap_data, &image_map); + } + + ImageMap image_map; + + private: + using BuildImageMapTest::InitOmapData; + using BuildImageMapTest::omap_data; +}; + +} // namespace + +TEST_F(MapAddressRangeTest, EmptyImageMapReturnsIdentity) { + ImageMap im; + AddressRangeVector mapped_ranges; + AddressRange ar(0, 1024); + MapAddressRange(im, ar, &mapped_ranges); + EXPECT_EQ(1u, mapped_ranges.size()); + EXPECT_EQ(ar, mapped_ranges[0]); +} + +TEST_F(MapAddressRangeTest, MapOutOfImage) { + AddressRangeVector mapped_ranges; + MapAddressRange(image_map, AddressRange(H.end() + 10, 10), &mapped_ranges); + EXPECT_EQ(0u, mapped_ranges.size()); +} + +TEST_F(MapAddressRangeTest, MapIdentity) { + AddressRangeVector mapped_ranges; + MapAddressRange(image_map, B, &mapped_ranges); + EXPECT_EQ(1u, mapped_ranges.size()); + EXPECT_THAT(mapped_ranges, testing::ElementsAre(B)); +} + +TEST_F(MapAddressRangeTest, MapReorderedContiguous) { + AddressRangeVector mapped_ranges; + + AddressRange DEF(D.rva, F.end() - D.rva); + MapAddressRange(image_map, DEF, &mapped_ranges); + EXPECT_EQ(1u, mapped_ranges.size()); + + AddressRange DFEt(Dt.rva, Et.end() - Dt.rva); + EXPECT_THAT(mapped_ranges, testing::ElementsAre(DFEt)); +} + +TEST_F(MapAddressRangeTest, MapEmptySingle) { + AddressRangeVector mapped_ranges; + MapAddressRange(image_map, AddressRange(D.rva, 0), &mapped_ranges); + EXPECT_EQ(1u, mapped_ranges.size()); + EXPECT_THAT(mapped_ranges, testing::ElementsAre(AddressRange(Dt.rva, 0))); +} + +TEST_F(MapAddressRangeTest, MapEmptyCopied) { + AddressRangeVector mapped_ranges; + MapAddressRange(image_map, AddressRange(G.rva, 0), &mapped_ranges); + EXPECT_EQ(2u, mapped_ranges.size()); + EXPECT_THAT(mapped_ranges, testing::ElementsAre(AddressRange(G1t.rva, 0), + AddressRange(G2t.rva, 0))); +} + +TEST_F(MapAddressRangeTest, MapCopiedContiguous) { + AddressRangeVector mapped_ranges; + MapAddressRange(image_map, G, &mapped_ranges); + EXPECT_EQ(1u, mapped_ranges.size()); + EXPECT_THAT(mapped_ranges, testing::ElementsAre( + AddressRange(G1t.rva, G2t.end() - G1t.rva))); +} + +TEST_F(MapAddressRangeTest, MapSplitDiscontiguous) { + AddressRangeVector mapped_ranges; + MapAddressRange(image_map, H, &mapped_ranges); + EXPECT_EQ(2u, mapped_ranges.size()); + EXPECT_THAT(mapped_ranges, testing::ElementsAre(H1t, H2t)); +} + +TEST_F(MapAddressRangeTest, MapInjected) { + AddressRangeVector mapped_ranges; + + AddressRange EFGH(E.rva, H.end() - E.rva); + MapAddressRange(image_map, EFGH, &mapped_ranges); + EXPECT_EQ(1u, mapped_ranges.size()); + + AddressRange FEHGGHt(Ft.rva, H2t.end() - Ft.rva); + EXPECT_THAT(mapped_ranges, testing::ElementsAre(FEHGGHt)); +} + +TEST_F(MapAddressRangeTest, MapRemovedEntirely) { + AddressRangeVector mapped_ranges; + MapAddressRange(image_map, C, &mapped_ranges); + EXPECT_EQ(0u, mapped_ranges.size()); +} + +TEST_F(MapAddressRangeTest, MapRemovedPartly) { + AddressRangeVector mapped_ranges; + MapAddressRange(image_map, D, &mapped_ranges); + EXPECT_EQ(1u, mapped_ranges.size()); + EXPECT_THAT(mapped_ranges, testing::ElementsAre(Dt)); +} + +TEST_F(MapAddressRangeTest, MapFull) { + AddressRangeVector mapped_ranges; + + AddressRange AH(0, H.end()); + MapAddressRange(image_map, AH, &mapped_ranges); + EXPECT_EQ(1u, mapped_ranges.size()); + + AddressRange AHt(0, H2t.end()); + EXPECT_THAT(mapped_ranges, testing::ElementsAre(AHt)); +} + +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/common/windows/pdb_source_line_writer.cc b/3rdParty/Breakpad/src/common/windows/pdb_source_line_writer.cc new file mode 100644 index 0000000..31920ba --- /dev/null +++ b/3rdParty/Breakpad/src/common/windows/pdb_source_line_writer.cc @@ -0,0 +1,1412 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "common/windows/pdb_source_line_writer.h" + +#include <windows.h> +#include <winnt.h> +#include <atlbase.h> +#include <dia2.h> +#include <diacreate.h> +#include <ImageHlp.h> +#include <stdio.h> + +#include <limits> +#include <set> + +#include "common/windows/dia_util.h" +#include "common/windows/guid_string.h" +#include "common/windows/string_utils-inl.h" + +// This constant may be missing from DbgHelp.h. See the documentation for +// IDiaSymbol::get_undecoratedNameEx. +#ifndef UNDNAME_NO_ECSU +#define UNDNAME_NO_ECSU 0x8000 // Suppresses enum/class/struct/union. +#endif // UNDNAME_NO_ECSU + +/* + * Not defined in WinNT.h for some reason. Definitions taken from: + * http://uninformed.org/index.cgi?v=4&a=1&p=13 + * + */ +typedef unsigned char UBYTE; + +#if !defined(_WIN64) +#define UNW_FLAG_EHANDLER 0x01 +#define UNW_FLAG_UHANDLER 0x02 +#define UNW_FLAG_CHAININFO 0x04 +#endif + +union UnwindCode { + struct { + UBYTE offset_in_prolog; + UBYTE unwind_operation_code : 4; + UBYTE operation_info : 4; + }; + USHORT frame_offset; +}; + +enum UnwindOperationCodes { + UWOP_PUSH_NONVOL = 0, /* info == register number */ + UWOP_ALLOC_LARGE, /* no info, alloc size in next 2 slots */ + UWOP_ALLOC_SMALL, /* info == size of allocation / 8 - 1 */ + UWOP_SET_FPREG, /* no info, FP = RSP + UNWIND_INFO.FPRegOffset*16 */ + UWOP_SAVE_NONVOL, /* info == register number, offset in next slot */ + UWOP_SAVE_NONVOL_FAR, /* info == register number, offset in next 2 slots */ + // XXX: these are missing from MSDN! + // See: http://www.osronline.com/ddkx/kmarch/64bitamd_4rs7.htm + UWOP_SAVE_XMM, + UWOP_SAVE_XMM_FAR, + UWOP_SAVE_XMM128, /* info == XMM reg number, offset in next slot */ + UWOP_SAVE_XMM128_FAR, /* info == XMM reg number, offset in next 2 slots */ + UWOP_PUSH_MACHFRAME /* info == 0: no error-code, 1: error-code */ +}; + +// See: http://msdn.microsoft.com/en-us/library/ddssxxy8.aspx +// Note: some fields removed as we don't use them. +struct UnwindInfo { + UBYTE version : 3; + UBYTE flags : 5; + UBYTE size_of_prolog; + UBYTE count_of_codes; + UBYTE frame_register : 4; + UBYTE frame_offset : 4; + UnwindCode unwind_code[1]; +}; + +namespace google_breakpad { + +namespace { + +using std::vector; + +// A helper class to scope a PLOADED_IMAGE. +class AutoImage { + public: + explicit AutoImage(PLOADED_IMAGE img) : img_(img) {} + ~AutoImage() { + if (img_) + ImageUnload(img_); + } + + operator PLOADED_IMAGE() { return img_; } + PLOADED_IMAGE operator->() { return img_; } + + private: + PLOADED_IMAGE img_; +}; + +bool SymbolsMatch(IDiaSymbol* a, IDiaSymbol* b) { + DWORD a_section, a_offset, b_section, b_offset; + if (FAILED(a->get_addressSection(&a_section)) || + FAILED(a->get_addressOffset(&a_offset)) || + FAILED(b->get_addressSection(&b_section)) || + FAILED(b->get_addressOffset(&b_offset))) + return false; + return a_section == b_section && a_offset == b_offset; +} + +bool CreateDiaDataSourceInstance(CComPtr<IDiaDataSource> &data_source) { + if (SUCCEEDED(data_source.CoCreateInstance(CLSID_DiaSource))) { + return true; + } + + class DECLSPEC_UUID("B86AE24D-BF2F-4ac9-B5A2-34B14E4CE11D") DiaSource100; + class DECLSPEC_UUID("761D3BCD-1304-41D5-94E8-EAC54E4AC172") DiaSource110; + class DECLSPEC_UUID("3BFCEA48-620F-4B6B-81F7-B9AF75454C7D") DiaSource120; + class DECLSPEC_UUID("E6756135-1E65-4D17-8576-610761398C3C") DiaSource140; + + // If the CoCreateInstance call above failed, msdia*.dll is not registered. + // We can try loading the DLL corresponding to the #included DIA SDK, but + // the DIA headers don't provide a version. Lets try to figure out which DIA + // version we're compiling against by comparing CLSIDs. + const wchar_t *msdia_dll = nullptr; + if (CLSID_DiaSource == _uuidof(DiaSource100)) { + msdia_dll = L"msdia100.dll"; + } else if (CLSID_DiaSource == _uuidof(DiaSource110)) { + msdia_dll = L"msdia110.dll"; + } else if (CLSID_DiaSource == _uuidof(DiaSource120)) { + msdia_dll = L"msdia120.dll"; + } else if (CLSID_DiaSource == _uuidof(DiaSource140)) { + msdia_dll = L"msdia140.dll"; + } + + if (msdia_dll && + SUCCEEDED(NoRegCoCreate(msdia_dll, CLSID_DiaSource, IID_IDiaDataSource, + reinterpret_cast<void **>(&data_source)))) { + return true; + } + + return false; +} + +} // namespace + +PDBSourceLineWriter::PDBSourceLineWriter() : output_(NULL) { +} + +PDBSourceLineWriter::~PDBSourceLineWriter() { +} + +bool PDBSourceLineWriter::SetCodeFile(const wstring &exe_file) { + if (code_file_.empty()) { + code_file_ = exe_file; + return true; + } + // Setting a different code file path is an error. It is success only if the + // file paths are the same. + return exe_file == code_file_; +} + +bool PDBSourceLineWriter::Open(const wstring &file, FileFormat format) { + Close(); + code_file_.clear(); + + if (FAILED(CoInitialize(NULL))) { + fprintf(stderr, "CoInitialize failed\n"); + return false; + } + + CComPtr<IDiaDataSource> data_source; + if (!CreateDiaDataSourceInstance(data_source)) { + const int kGuidSize = 64; + wchar_t classid[kGuidSize] = {0}; + StringFromGUID2(CLSID_DiaSource, classid, kGuidSize); + fprintf(stderr, "CoCreateInstance CLSID_DiaSource %S failed " + "(msdia*.dll unregistered?)\n", classid); + return false; + } + + switch (format) { + case PDB_FILE: + if (FAILED(data_source->loadDataFromPdb(file.c_str()))) { + fprintf(stderr, "loadDataFromPdb failed for %ws\n", file.c_str()); + return false; + } + break; + case EXE_FILE: + if (FAILED(data_source->loadDataForExe(file.c_str(), NULL, NULL))) { + fprintf(stderr, "loadDataForExe failed for %ws\n", file.c_str()); + return false; + } + code_file_ = file; + break; + case ANY_FILE: + if (FAILED(data_source->loadDataFromPdb(file.c_str()))) { + if (FAILED(data_source->loadDataForExe(file.c_str(), NULL, NULL))) { + fprintf(stderr, "loadDataForPdb and loadDataFromExe failed for %ws\n", + file.c_str()); + return false; + } + code_file_ = file; + } + break; + default: + fprintf(stderr, "Unknown file format\n"); + return false; + } + + if (FAILED(data_source->openSession(&session_))) { + fprintf(stderr, "openSession failed\n"); + } + + return true; +} + +bool PDBSourceLineWriter::PrintLines(IDiaEnumLineNumbers *lines) { + // The line number format is: + // <rva> <line number> <source file id> + CComPtr<IDiaLineNumber> line; + ULONG count; + + while (SUCCEEDED(lines->Next(1, &line, &count)) && count == 1) { + DWORD rva; + if (FAILED(line->get_relativeVirtualAddress(&rva))) { + fprintf(stderr, "failed to get line rva\n"); + return false; + } + + DWORD length; + if (FAILED(line->get_length(&length))) { + fprintf(stderr, "failed to get line code length\n"); + return false; + } + + DWORD dia_source_id; + if (FAILED(line->get_sourceFileId(&dia_source_id))) { + fprintf(stderr, "failed to get line source file id\n"); + return false; + } + // duplicate file names are coalesced to share one ID + DWORD source_id = GetRealFileID(dia_source_id); + + DWORD line_num; + if (FAILED(line->get_lineNumber(&line_num))) { + fprintf(stderr, "failed to get line number\n"); + return false; + } + + AddressRangeVector ranges; + MapAddressRange(image_map_, AddressRange(rva, length), &ranges); + for (size_t i = 0; i < ranges.size(); ++i) { + fprintf(output_, "%lx %lx %lu %lu\n", ranges[i].rva, ranges[i].length, + line_num, source_id); + } + line.Release(); + } + return true; +} + +bool PDBSourceLineWriter::PrintFunction(IDiaSymbol *function, + IDiaSymbol *block) { + // The function format is: + // FUNC <address> <length> <param_stack_size> <function> + DWORD rva; + if (FAILED(block->get_relativeVirtualAddress(&rva))) { + fprintf(stderr, "couldn't get rva\n"); + return false; + } + + ULONGLONG length; + if (FAILED(block->get_length(&length))) { + fprintf(stderr, "failed to get function length\n"); + return false; + } + + if (length == 0) { + // Silently ignore zero-length functions, which can infrequently pop up. + return true; + } + + CComBSTR name; + int stack_param_size; + if (!GetSymbolFunctionName(function, &name, &stack_param_size)) { + return false; + } + + // If the decorated name didn't give the parameter size, try to + // calculate it. + if (stack_param_size < 0) { + stack_param_size = GetFunctionStackParamSize(function); + } + + AddressRangeVector ranges; + MapAddressRange(image_map_, AddressRange(rva, static_cast<DWORD>(length)), + &ranges); + for (size_t i = 0; i < ranges.size(); ++i) { + fprintf(output_, "FUNC %lx %lx %x %ws\n", + ranges[i].rva, ranges[i].length, stack_param_size, + name.m_str); + } + + CComPtr<IDiaEnumLineNumbers> lines; + if (FAILED(session_->findLinesByRVA(rva, DWORD(length), &lines))) { + return false; + } + + if (!PrintLines(lines)) { + return false; + } + return true; +} + +bool PDBSourceLineWriter::PrintSourceFiles() { + CComPtr<IDiaSymbol> global; + if (FAILED(session_->get_globalScope(&global))) { + fprintf(stderr, "get_globalScope failed\n"); + return false; + } + + CComPtr<IDiaEnumSymbols> compilands; + if (FAILED(global->findChildren(SymTagCompiland, NULL, + nsNone, &compilands))) { + fprintf(stderr, "findChildren failed\n"); + return false; + } + + CComPtr<IDiaSymbol> compiland; + ULONG count; + while (SUCCEEDED(compilands->Next(1, &compiland, &count)) && count == 1) { + CComPtr<IDiaEnumSourceFiles> source_files; + if (FAILED(session_->findFile(compiland, NULL, nsNone, &source_files))) { + return false; + } + CComPtr<IDiaSourceFile> file; + while (SUCCEEDED(source_files->Next(1, &file, &count)) && count == 1) { + DWORD file_id; + if (FAILED(file->get_uniqueId(&file_id))) { + return false; + } + + CComBSTR file_name; + if (FAILED(file->get_fileName(&file_name))) { + return false; + } + + wstring file_name_string(file_name); + if (!FileIDIsCached(file_name_string)) { + // this is a new file name, cache it and output a FILE line. + CacheFileID(file_name_string, file_id); + fwprintf(output_, L"FILE %d %ws\n", file_id, file_name_string.c_str()); + } else { + // this file name has already been seen, just save this + // ID for later lookup. + StoreDuplicateFileID(file_name_string, file_id); + } + file.Release(); + } + compiland.Release(); + } + return true; +} + +bool PDBSourceLineWriter::PrintFunctions() { + ULONG count = 0; + DWORD rva = 0; + CComPtr<IDiaSymbol> global; + HRESULT hr; + + if (FAILED(session_->get_globalScope(&global))) { + fprintf(stderr, "get_globalScope failed\n"); + return false; + } + + CComPtr<IDiaEnumSymbols> symbols = NULL; + + // Find all function symbols first. + std::set<DWORD> rvas; + hr = global->findChildren(SymTagFunction, NULL, nsNone, &symbols); + + if (SUCCEEDED(hr)) { + CComPtr<IDiaSymbol> symbol = NULL; + + while (SUCCEEDED(symbols->Next(1, &symbol, &count)) && count == 1) { + if (SUCCEEDED(symbol->get_relativeVirtualAddress(&rva))) { + // To maintain existing behavior of one symbol per address, place the + // rva onto a set here to uniquify them. + rvas.insert(rva); + } else { + fprintf(stderr, "get_relativeVirtualAddress failed on the symbol\n"); + return false; + } + + symbol.Release(); + } + + symbols.Release(); + } + + // Find all public symbols. Store public symbols that are not also private + // symbols for later. + std::set<DWORD> public_only_rvas; + hr = global->findChildren(SymTagPublicSymbol, NULL, nsNone, &symbols); + + if (SUCCEEDED(hr)) { + CComPtr<IDiaSymbol> symbol = NULL; + + while (SUCCEEDED(symbols->Next(1, &symbol, &count)) && count == 1) { + if (SUCCEEDED(symbol->get_relativeVirtualAddress(&rva))) { + if (rvas.count(rva) == 0) { + rvas.insert(rva); // Keep symbols in rva order. + public_only_rvas.insert(rva); + } + } else { + fprintf(stderr, "get_relativeVirtualAddress failed on the symbol\n"); + return false; + } + + symbol.Release(); + } + + symbols.Release(); + } + + std::set<DWORD>::iterator it; + + // For each rva, dump the first symbol DIA knows about at the address. + for (it = rvas.begin(); it != rvas.end(); ++it) { + CComPtr<IDiaSymbol> symbol = NULL; + // If the symbol is not in the public list, look for SymTagFunction. This is + // a workaround to a bug where DIA will hang if searching for a private + // symbol at an address where only a public symbol exists. + // See http://connect.microsoft.com/VisualStudio/feedback/details/722366 + if (public_only_rvas.count(*it) == 0) { + if (SUCCEEDED(session_->findSymbolByRVA(*it, SymTagFunction, &symbol))) { + // Sometimes findSymbolByRVA returns S_OK, but NULL. + if (symbol) { + if (!PrintFunction(symbol, symbol)) + return false; + symbol.Release(); + } + } else { + fprintf(stderr, "findSymbolByRVA SymTagFunction failed\n"); + return false; + } + } else if (SUCCEEDED(session_->findSymbolByRVA(*it, + SymTagPublicSymbol, + &symbol))) { + // Sometimes findSymbolByRVA returns S_OK, but NULL. + if (symbol) { + if (!PrintCodePublicSymbol(symbol)) + return false; + symbol.Release(); + } + } else { + fprintf(stderr, "findSymbolByRVA SymTagPublicSymbol failed\n"); + return false; + } + } + + // When building with PGO, the compiler can split functions into + // "hot" and "cold" blocks, and move the "cold" blocks out to separate + // pages, so the function can be noncontiguous. To find these blocks, + // we have to iterate over all the compilands, and then find blocks + // that are children of them. We can then find the lexical parents + // of those blocks and print out an extra FUNC line for blocks + // that are not contained in their parent functions. + CComPtr<IDiaEnumSymbols> compilands; + if (FAILED(global->findChildren(SymTagCompiland, NULL, + nsNone, &compilands))) { + fprintf(stderr, "findChildren failed on the global\n"); + return false; + } + + CComPtr<IDiaSymbol> compiland; + while (SUCCEEDED(compilands->Next(1, &compiland, &count)) && count == 1) { + CComPtr<IDiaEnumSymbols> blocks; + if (FAILED(compiland->findChildren(SymTagBlock, NULL, + nsNone, &blocks))) { + fprintf(stderr, "findChildren failed on a compiland\n"); + return false; + } + + CComPtr<IDiaSymbol> block; + while (SUCCEEDED(blocks->Next(1, &block, &count)) && count == 1) { + // find this block's lexical parent function + CComPtr<IDiaSymbol> parent; + DWORD tag; + if (SUCCEEDED(block->get_lexicalParent(&parent)) && + SUCCEEDED(parent->get_symTag(&tag)) && + tag == SymTagFunction) { + // now get the block's offset and the function's offset and size, + // and determine if the block is outside of the function + DWORD func_rva, block_rva; + ULONGLONG func_length; + if (SUCCEEDED(block->get_relativeVirtualAddress(&block_rva)) && + SUCCEEDED(parent->get_relativeVirtualAddress(&func_rva)) && + SUCCEEDED(parent->get_length(&func_length))) { + if (block_rva < func_rva || block_rva > (func_rva + func_length)) { + if (!PrintFunction(parent, block)) { + return false; + } + } + } + } + parent.Release(); + block.Release(); + } + blocks.Release(); + compiland.Release(); + } + + global.Release(); + return true; +} + +#undef max + +bool PDBSourceLineWriter::PrintFrameDataUsingPDB() { + // It would be nice if it were possible to output frame data alongside the + // associated function, as is done with line numbers, but the DIA API + // doesn't make it possible to get the frame data in that way. + + CComPtr<IDiaEnumFrameData> frame_data_enum; + if (!FindTable(session_, &frame_data_enum)) + return false; + + DWORD last_type = std::numeric_limits<DWORD>::max(); + DWORD last_rva = std::numeric_limits<DWORD>::max(); + DWORD last_code_size = 0; + DWORD last_prolog_size = std::numeric_limits<DWORD>::max(); + + CComPtr<IDiaFrameData> frame_data; + ULONG count = 0; + while (SUCCEEDED(frame_data_enum->Next(1, &frame_data, &count)) && + count == 1) { + DWORD type; + if (FAILED(frame_data->get_type(&type))) + return false; + + DWORD rva; + if (FAILED(frame_data->get_relativeVirtualAddress(&rva))) + return false; + + DWORD code_size; + if (FAILED(frame_data->get_lengthBlock(&code_size))) + return false; + + DWORD prolog_size; + if (FAILED(frame_data->get_lengthProlog(&prolog_size))) + return false; + + // parameter_size is the size of parameters passed on the stack. If any + // parameters are not passed on the stack (such as in registers), their + // sizes will not be included in parameter_size. + DWORD parameter_size; + if (FAILED(frame_data->get_lengthParams(¶meter_size))) + return false; + + DWORD saved_register_size; + if (FAILED(frame_data->get_lengthSavedRegisters(&saved_register_size))) + return false; + + DWORD local_size; + if (FAILED(frame_data->get_lengthLocals(&local_size))) + return false; + + // get_maxStack can return S_FALSE, just use 0 in that case. + DWORD max_stack_size = 0; + if (FAILED(frame_data->get_maxStack(&max_stack_size))) + return false; + + // get_programString can return S_FALSE, indicating that there is no + // program string. In that case, check whether %ebp is used. + HRESULT program_string_result; + CComBSTR program_string; + if (FAILED(program_string_result = frame_data->get_program( + &program_string))) { + return false; + } + + // get_allocatesBasePointer can return S_FALSE, treat that as though + // %ebp is not used. + BOOL allocates_base_pointer = FALSE; + if (program_string_result != S_OK) { + if (FAILED(frame_data->get_allocatesBasePointer( + &allocates_base_pointer))) { + return false; + } + } + + // Only print out a line if type, rva, code_size, or prolog_size have + // changed from the last line. It is surprisingly common (especially in + // system library PDBs) for DIA to return a series of identical + // IDiaFrameData objects. For kernel32.pdb from Windows XP SP2 on x86, + // this check reduces the size of the dumped symbol file by a third. + if (type != last_type || rva != last_rva || code_size != last_code_size || + prolog_size != last_prolog_size) { + // The prolog and the code portions of the frame have to be treated + // independently as they may have independently changed in size, or may + // even have been split. + // NOTE: If epilog size is ever non-zero, we have to do something + // similar with it. + + // Figure out where the prolog bytes have landed. + AddressRangeVector prolog_ranges; + if (prolog_size > 0) { + MapAddressRange(image_map_, AddressRange(rva, prolog_size), + &prolog_ranges); + } + + // And figure out where the code bytes have landed. + AddressRangeVector code_ranges; + MapAddressRange(image_map_, + AddressRange(rva + prolog_size, + code_size - prolog_size), + &code_ranges); + + struct FrameInfo { + DWORD rva; + DWORD code_size; + DWORD prolog_size; + }; + std::vector<FrameInfo> frame_infos; + + // Special case: The prolog and the code bytes remain contiguous. This is + // only done for compactness of the symbol file, and we could actually + // be outputting independent frame info for the prolog and code portions. + if (prolog_ranges.size() == 1 && code_ranges.size() == 1 && + prolog_ranges[0].end() == code_ranges[0].rva) { + FrameInfo fi = { prolog_ranges[0].rva, + prolog_ranges[0].length + code_ranges[0].length, + prolog_ranges[0].length }; + frame_infos.push_back(fi); + } else { + // Otherwise we output the prolog and code frame info independently. + for (size_t i = 0; i < prolog_ranges.size(); ++i) { + FrameInfo fi = { prolog_ranges[i].rva, + prolog_ranges[i].length, + prolog_ranges[i].length }; + frame_infos.push_back(fi); + } + for (size_t i = 0; i < code_ranges.size(); ++i) { + FrameInfo fi = { code_ranges[i].rva, code_ranges[i].length, 0 }; + frame_infos.push_back(fi); + } + } + + for (size_t i = 0; i < frame_infos.size(); ++i) { + const FrameInfo& fi(frame_infos[i]); + fprintf(output_, "STACK WIN %lx %lx %lx %lx %x %lx %lx %lx %lx %d ", + type, fi.rva, fi.code_size, fi.prolog_size, + 0 /* epilog_size */, parameter_size, saved_register_size, + local_size, max_stack_size, program_string_result == S_OK); + if (program_string_result == S_OK) { + fprintf(output_, "%ws\n", program_string.m_str); + } else { + fprintf(output_, "%d\n", allocates_base_pointer); + } + } + + last_type = type; + last_rva = rva; + last_code_size = code_size; + last_prolog_size = prolog_size; + } + + frame_data.Release(); + } + + return true; +} + +bool PDBSourceLineWriter::PrintFrameDataUsingEXE() { + if (code_file_.empty() && !FindPEFile()) { + fprintf(stderr, "Couldn't locate EXE or DLL file.\n"); + return false; + } + + // Convert wchar to native charset because ImageLoad only takes + // a PSTR as input. + string code_file; + if (!WindowsStringUtils::safe_wcstombs(code_file_, &code_file)) { + return false; + } + + AutoImage img(ImageLoad((PSTR)code_file.c_str(), NULL)); + if (!img) { + fprintf(stderr, "Failed to load %s\n", code_file.c_str()); + return false; + } + PIMAGE_OPTIONAL_HEADER64 optional_header = + &(reinterpret_cast<PIMAGE_NT_HEADERS64>(img->FileHeader))->OptionalHeader; + if (optional_header->Magic != IMAGE_NT_OPTIONAL_HDR64_MAGIC) { + fprintf(stderr, "Not a PE32+ image\n"); + return false; + } + + // Read Exception Directory + DWORD exception_rva = optional_header-> + DataDirectory[IMAGE_DIRECTORY_ENTRY_EXCEPTION].VirtualAddress; + DWORD exception_size = optional_header-> + DataDirectory[IMAGE_DIRECTORY_ENTRY_EXCEPTION].Size; + PIMAGE_RUNTIME_FUNCTION_ENTRY funcs = + static_cast<PIMAGE_RUNTIME_FUNCTION_ENTRY>( + ImageRvaToVa(img->FileHeader, + img->MappedAddress, + exception_rva, + &img->LastRvaSection)); + for (DWORD i = 0; i < exception_size / sizeof(*funcs); i++) { + DWORD unwind_rva = funcs[i].UnwindInfoAddress; + // handle chaining + while (unwind_rva & 0x1) { + unwind_rva ^= 0x1; + PIMAGE_RUNTIME_FUNCTION_ENTRY chained_func = + static_cast<PIMAGE_RUNTIME_FUNCTION_ENTRY>( + ImageRvaToVa(img->FileHeader, + img->MappedAddress, + unwind_rva, + &img->LastRvaSection)); + unwind_rva = chained_func->UnwindInfoAddress; + } + + UnwindInfo *unwind_info = static_cast<UnwindInfo *>( + ImageRvaToVa(img->FileHeader, + img->MappedAddress, + unwind_rva, + &img->LastRvaSection)); + + DWORD stack_size = 8; // minimal stack size is 8 for RIP + DWORD rip_offset = 8; + do { + for (UBYTE c = 0; c < unwind_info->count_of_codes; c++) { + UnwindCode *unwind_code = &unwind_info->unwind_code[c]; + switch (unwind_code->unwind_operation_code) { + case UWOP_PUSH_NONVOL: { + stack_size += 8; + break; + } + case UWOP_ALLOC_LARGE: { + if (unwind_code->operation_info == 0) { + c++; + if (c < unwind_info->count_of_codes) + stack_size += (unwind_code + 1)->frame_offset * 8; + } else { + c += 2; + if (c < unwind_info->count_of_codes) + stack_size += (unwind_code + 1)->frame_offset | + ((unwind_code + 2)->frame_offset << 16); + } + break; + } + case UWOP_ALLOC_SMALL: { + stack_size += unwind_code->operation_info * 8 + 8; + break; + } + case UWOP_SET_FPREG: + case UWOP_SAVE_XMM: + case UWOP_SAVE_XMM_FAR: + break; + case UWOP_SAVE_NONVOL: + case UWOP_SAVE_XMM128: { + c++; // skip slot with offset + break; + } + case UWOP_SAVE_NONVOL_FAR: + case UWOP_SAVE_XMM128_FAR: { + c += 2; // skip 2 slots with offset + break; + } + case UWOP_PUSH_MACHFRAME: { + if (unwind_code->operation_info) { + stack_size += 88; + } else { + stack_size += 80; + } + rip_offset += 80; + break; + } + } + } + if (unwind_info->flags & UNW_FLAG_CHAININFO) { + PIMAGE_RUNTIME_FUNCTION_ENTRY chained_func = + reinterpret_cast<PIMAGE_RUNTIME_FUNCTION_ENTRY>( + (unwind_info->unwind_code + + ((unwind_info->count_of_codes + 1) & ~1))); + + unwind_info = static_cast<UnwindInfo *>( + ImageRvaToVa(img->FileHeader, + img->MappedAddress, + chained_func->UnwindInfoAddress, + &img->LastRvaSection)); + } else { + unwind_info = NULL; + } + } while (unwind_info); + fprintf(output_, "STACK CFI INIT %lx %lx .cfa: $rsp .ra: .cfa %lu - ^\n", + funcs[i].BeginAddress, + funcs[i].EndAddress - funcs[i].BeginAddress, rip_offset); + fprintf(output_, "STACK CFI %lx .cfa: $rsp %lu +\n", + funcs[i].BeginAddress, stack_size); + } + + return true; +} + +bool PDBSourceLineWriter::PrintFrameData() { + PDBModuleInfo info; + if (GetModuleInfo(&info) && info.cpu == L"x86_64") { + return PrintFrameDataUsingEXE(); + } else { + return PrintFrameDataUsingPDB(); + } + return false; +} + +bool PDBSourceLineWriter::PrintCodePublicSymbol(IDiaSymbol *symbol) { + BOOL is_code; + if (FAILED(symbol->get_code(&is_code))) { + return false; + } + if (!is_code) { + return true; + } + + DWORD rva; + if (FAILED(symbol->get_relativeVirtualAddress(&rva))) { + return false; + } + + CComBSTR name; + int stack_param_size; + if (!GetSymbolFunctionName(symbol, &name, &stack_param_size)) { + return false; + } + + AddressRangeVector ranges; + MapAddressRange(image_map_, AddressRange(rva, 1), &ranges); + for (size_t i = 0; i < ranges.size(); ++i) { + fprintf(output_, "PUBLIC %lx %x %ws\n", ranges[i].rva, + stack_param_size > 0 ? stack_param_size : 0, + name.m_str); + } + + // Now walk the function in the original untranslated space, asking DIA + // what function is at that location, stepping through OMAP blocks. If + // we're still in the same function, emit another entry, because the + // symbol could have been split into multiple pieces. If we've gotten to + // another symbol in the original address space, then we're done for + // this symbol. See https://crbug.com/678874. + for (;;) { + // This steps to the next block in the original image. Simply doing + // rva++ would also be correct, but would emit tons of unnecessary + // entries. + rva = image_map_.subsequent_rva_block[rva]; + if (rva == 0) + break; + + CComPtr<IDiaSymbol> next_sym = NULL; + LONG displacement; + if (FAILED(session_->findSymbolByRVAEx(rva, SymTagPublicSymbol, &next_sym, + &displacement))) { + break; + } + + if (!SymbolsMatch(symbol, next_sym)) + break; + + AddressRangeVector next_ranges; + MapAddressRange(image_map_, AddressRange(rva, 1), &next_ranges); + for (size_t i = 0; i < next_ranges.size(); ++i) { + fprintf(output_, "PUBLIC %lx %x %ws\n", next_ranges[i].rva, + stack_param_size > 0 ? stack_param_size : 0, name.m_str); + } + } + + return true; +} + +bool PDBSourceLineWriter::PrintPDBInfo() { + PDBModuleInfo info; + if (!GetModuleInfo(&info)) { + return false; + } + + // Hard-code "windows" for the OS because that's the only thing that makes + // sense for PDB files. (This might not be strictly correct for Windows CE + // support, but we don't care about that at the moment.) + fprintf(output_, "MODULE windows %ws %ws %ws\n", + info.cpu.c_str(), info.debug_identifier.c_str(), + info.debug_file.c_str()); + + return true; +} + +bool PDBSourceLineWriter::PrintPEInfo() { + PEModuleInfo info; + if (!GetPEInfo(&info)) { + return false; + } + + fprintf(output_, "INFO CODE_ID %ws %ws\n", + info.code_identifier.c_str(), + info.code_file.c_str()); + return true; +} + +// wcstol_positive_strict is sort of like wcstol, but much stricter. string +// should be a buffer pointing to a null-terminated string containing only +// decimal digits. If the entire string can be converted to an integer +// without overflowing, and there are no non-digit characters before the +// result is set to the value and this function returns true. Otherwise, +// this function returns false. This is an alternative to the strtol, atoi, +// and scanf families, which are not as strict about input and in some cases +// don't provide a good way for the caller to determine if a conversion was +// successful. +static bool wcstol_positive_strict(wchar_t *string, int *result) { + int value = 0; + for (wchar_t *c = string; *c != '\0'; ++c) { + int last_value = value; + value *= 10; + // Detect overflow. + if (value / 10 != last_value || value < 0) { + return false; + } + if (*c < '0' || *c > '9') { + return false; + } + unsigned int c_value = *c - '0'; + last_value = value; + value += c_value; + // Detect overflow. + if (value < last_value) { + return false; + } + // Forbid leading zeroes unless the string is just "0". + if (value == 0 && *(c+1) != '\0') { + return false; + } + } + *result = value; + return true; +} + +bool PDBSourceLineWriter::FindPEFile() { + CComPtr<IDiaSymbol> global; + if (FAILED(session_->get_globalScope(&global))) { + fprintf(stderr, "get_globalScope failed\n"); + return false; + } + + CComBSTR symbols_file; + if (SUCCEEDED(global->get_symbolsFileName(&symbols_file))) { + wstring file(symbols_file); + + // Look for an EXE or DLL file. + const wchar_t *extensions[] = { L"exe", L"dll" }; + for (size_t i = 0; i < sizeof(extensions) / sizeof(extensions[0]); i++) { + size_t dot_pos = file.find_last_of(L"."); + if (dot_pos != wstring::npos) { + file.replace(dot_pos + 1, wstring::npos, extensions[i]); + // Check if this file exists. + if (GetFileAttributesW(file.c_str()) != INVALID_FILE_ATTRIBUTES) { + code_file_ = file; + return true; + } + } + } + } + + return false; +} + +// static +bool PDBSourceLineWriter::GetSymbolFunctionName(IDiaSymbol *function, + BSTR *name, + int *stack_param_size) { + *stack_param_size = -1; + const DWORD undecorate_options = UNDNAME_NO_MS_KEYWORDS | + UNDNAME_NO_FUNCTION_RETURNS | + UNDNAME_NO_ALLOCATION_MODEL | + UNDNAME_NO_ALLOCATION_LANGUAGE | + UNDNAME_NO_THISTYPE | + UNDNAME_NO_ACCESS_SPECIFIERS | + UNDNAME_NO_THROW_SIGNATURES | + UNDNAME_NO_MEMBER_TYPE | + UNDNAME_NO_RETURN_UDT_MODEL | + UNDNAME_NO_ECSU; + + // Use get_undecoratedNameEx to get readable C++ names with arguments. + if (function->get_undecoratedNameEx(undecorate_options, name) != S_OK) { + if (function->get_name(name) != S_OK) { + fprintf(stderr, "failed to get function name\n"); + return false; + } + + // It's possible for get_name to return an empty string, so + // special-case that. + if (wcscmp(*name, L"") == 0) { + SysFreeString(*name); + // dwarf_cu_to_module.cc uses "<name omitted>", so match that. + *name = SysAllocString(L"<name omitted>"); + return true; + } + + // If a name comes from get_name because no undecorated form existed, + // it's already formatted properly to be used as output. Don't do any + // additional processing. + // + // MSVC7's DIA seems to not undecorate names in as many cases as MSVC8's. + // This will result in calling get_name for some C++ symbols, so + // all of the parameter and return type information may not be included in + // the name string. + } else { + // C++ uses a bogus "void" argument for functions and methods that don't + // take any parameters. Take it out of the undecorated name because it's + // ugly and unnecessary. + const wchar_t *replace_string = L"(void)"; + const size_t replace_length = wcslen(replace_string); + const wchar_t *replacement_string = L"()"; + size_t length = wcslen(*name); + if (length >= replace_length) { + wchar_t *name_end = *name + length - replace_length; + if (wcscmp(name_end, replace_string) == 0) { + WindowsStringUtils::safe_wcscpy(name_end, replace_length, + replacement_string); + length = wcslen(*name); + } + } + + // Undecorate names used for stdcall and fastcall. These names prefix + // the identifier with '_' (stdcall) or '@' (fastcall) and suffix it + // with '@' followed by the number of bytes of parameters, in decimal. + // If such a name is found, take note of the size and undecorate it. + // Only do this for names that aren't C++, which is determined based on + // whether the undecorated name contains any ':' or '(' characters. + if (!wcschr(*name, ':') && !wcschr(*name, '(') && + (*name[0] == '_' || *name[0] == '@')) { + wchar_t *last_at = wcsrchr(*name + 1, '@'); + if (last_at && wcstol_positive_strict(last_at + 1, stack_param_size)) { + // If this function adheres to the fastcall convention, it accepts up + // to the first 8 bytes of parameters in registers (%ecx and %edx). + // We're only interested in the stack space used for parameters, so + // so subtract 8 and don't let the size go below 0. + if (*name[0] == '@') { + if (*stack_param_size > 8) { + *stack_param_size -= 8; + } else { + *stack_param_size = 0; + } + } + + // Undecorate the name by moving it one character to the left in its + // buffer, and terminating it where the last '@' had been. + WindowsStringUtils::safe_wcsncpy(*name, length, + *name + 1, last_at - *name - 1); + } else if (*name[0] == '_') { + // This symbol's name is encoded according to the cdecl rules. The + // name doesn't end in a '@' character followed by a decimal positive + // integer, so it's not a stdcall name. Strip off the leading + // underscore. + WindowsStringUtils::safe_wcsncpy(*name, length, *name + 1, length); + } + } + } + + return true; +} + +// static +int PDBSourceLineWriter::GetFunctionStackParamSize(IDiaSymbol *function) { + // This implementation is highly x86-specific. + + // Gather the symbols corresponding to data. + CComPtr<IDiaEnumSymbols> data_children; + if (FAILED(function->findChildren(SymTagData, NULL, nsNone, + &data_children))) { + return 0; + } + + // lowest_base is the lowest %ebp-relative byte offset used for a parameter. + // highest_end is one greater than the highest offset (i.e. base + length). + // Stack parameters are assumed to be contiguous, because in reality, they + // are. + int lowest_base = INT_MAX; + int highest_end = INT_MIN; + + CComPtr<IDiaSymbol> child; + DWORD count; + while (SUCCEEDED(data_children->Next(1, &child, &count)) && count == 1) { + // If any operation fails at this point, just proceed to the next child. + // Use the next_child label instead of continue because child needs to + // be released before it's reused. Declare constructable/destructable + // types early to avoid gotos that cross initializations. + CComPtr<IDiaSymbol> child_type; + + // DataIsObjectPtr is only used for |this|. Because |this| can be passed + // as a stack parameter, look for it in addition to traditional + // parameters. + DWORD child_kind; + if (FAILED(child->get_dataKind(&child_kind)) || + (child_kind != DataIsParam && child_kind != DataIsObjectPtr)) { + goto next_child; + } + + // Only concentrate on register-relative parameters. Parameters may also + // be enregistered (passed directly in a register), but those don't + // consume any stack space, so they're not of interest. + DWORD child_location_type; + if (FAILED(child->get_locationType(&child_location_type)) || + child_location_type != LocIsRegRel) { + goto next_child; + } + + // Of register-relative parameters, the only ones that make any sense are + // %ebp- or %esp-relative. Note that MSVC's debugging information always + // gives parameters as %ebp-relative even when a function doesn't use a + // traditional frame pointer and stack parameters are accessed relative to + // %esp, so just look for %ebp-relative parameters. If you wanted to + // access parameters, you'd probably want to treat these %ebp-relative + // offsets as if they were relative to %esp before a function's prolog + // executed. + DWORD child_register; + if (FAILED(child->get_registerId(&child_register)) || + child_register != CV_REG_EBP) { + goto next_child; + } + + LONG child_register_offset; + if (FAILED(child->get_offset(&child_register_offset))) { + goto next_child; + } + + // IDiaSymbol::get_type can succeed but still pass back a NULL value. + if (FAILED(child->get_type(&child_type)) || !child_type) { + goto next_child; + } + + ULONGLONG child_length; + if (FAILED(child_type->get_length(&child_length))) { + goto next_child; + } + + int child_end = child_register_offset + static_cast<ULONG>(child_length); + if (child_register_offset < lowest_base) { + lowest_base = child_register_offset; + } + if (child_end > highest_end) { + highest_end = child_end; + } + +next_child: + child.Release(); + } + + int param_size = 0; + // Make sure lowest_base isn't less than 4, because [%esp+4] is the lowest + // possible address to find a stack parameter before executing a function's + // prolog (see above). Some optimizations cause parameter offsets to be + // lower than 4, but we're not concerned with those because we're only + // looking for parameters contained in addresses higher than where the + // return address is stored. + if (lowest_base < 4) { + lowest_base = 4; + } + if (highest_end > lowest_base) { + // All stack parameters are pushed as at least 4-byte quantities. If the + // last type was narrower than 4 bytes, promote it. This assumes that all + // parameters' offsets are 4-byte-aligned, which is always the case. Only + // worry about the last type, because we're not summing the type sizes, + // just looking at the lowest and highest offsets. + int remainder = highest_end % 4; + if (remainder) { + highest_end += 4 - remainder; + } + + param_size = highest_end - lowest_base; + } + + return param_size; +} + +bool PDBSourceLineWriter::WriteMap(FILE *map_file) { + output_ = map_file; + + // Load the OMAP information, and disable auto-translation of addresses in + // preference of doing it ourselves. + OmapData omap_data; + if (!GetOmapDataAndDisableTranslation(session_, &omap_data)) + return false; + BuildImageMap(omap_data, &image_map_); + + bool ret = PrintPDBInfo(); + // This is not a critical piece of the symbol file. + PrintPEInfo(); + ret = ret && + PrintSourceFiles() && + PrintFunctions() && + PrintFrameData(); + + output_ = NULL; + return ret; +} + +void PDBSourceLineWriter::Close() { + session_.Release(); +} + +bool PDBSourceLineWriter::GetModuleInfo(PDBModuleInfo *info) { + if (!info) { + return false; + } + + info->debug_file.clear(); + info->debug_identifier.clear(); + info->cpu.clear(); + + CComPtr<IDiaSymbol> global; + if (FAILED(session_->get_globalScope(&global))) { + return false; + } + + DWORD machine_type; + // get_machineType can return S_FALSE. + if (global->get_machineType(&machine_type) == S_OK) { + // The documentation claims that get_machineType returns a value from + // the CV_CPU_TYPE_e enumeration, but that's not the case. + // Instead, it returns one of the IMAGE_FILE_MACHINE values as + // defined here: + // http://msdn.microsoft.com/en-us/library/ms680313%28VS.85%29.aspx + switch (machine_type) { + case IMAGE_FILE_MACHINE_I386: + info->cpu = L"x86"; + break; + case IMAGE_FILE_MACHINE_AMD64: + info->cpu = L"x86_64"; + break; + default: + info->cpu = L"unknown"; + break; + } + } else { + // Unexpected, but handle gracefully. + info->cpu = L"unknown"; + } + + // DWORD* and int* are not compatible. This is clean and avoids a cast. + DWORD age; + if (FAILED(global->get_age(&age))) { + return false; + } + + bool uses_guid; + if (!UsesGUID(&uses_guid)) { + return false; + } + + if (uses_guid) { + GUID guid; + if (FAILED(global->get_guid(&guid))) { + return false; + } + + // Use the same format that the MS symbol server uses in filesystem + // hierarchies. + wchar_t age_string[9]; + swprintf(age_string, sizeof(age_string) / sizeof(age_string[0]), + L"%x", age); + + // remove when VC++7.1 is no longer supported + age_string[sizeof(age_string) / sizeof(age_string[0]) - 1] = L'\0'; + + info->debug_identifier = GUIDString::GUIDToSymbolServerWString(&guid); + info->debug_identifier.append(age_string); + } else { + DWORD signature; + if (FAILED(global->get_signature(&signature))) { + return false; + } + + // Use the same format that the MS symbol server uses in filesystem + // hierarchies. + wchar_t identifier_string[17]; + swprintf(identifier_string, + sizeof(identifier_string) / sizeof(identifier_string[0]), + L"%08X%x", signature, age); + + // remove when VC++7.1 is no longer supported + identifier_string[sizeof(identifier_string) / + sizeof(identifier_string[0]) - 1] = L'\0'; + + info->debug_identifier = identifier_string; + } + + CComBSTR debug_file_string; + if (FAILED(global->get_symbolsFileName(&debug_file_string))) { + return false; + } + info->debug_file = + WindowsStringUtils::GetBaseName(wstring(debug_file_string)); + + return true; +} + +bool PDBSourceLineWriter::GetPEInfo(PEModuleInfo *info) { + if (!info) { + return false; + } + + if (code_file_.empty() && !FindPEFile()) { + fprintf(stderr, "Couldn't locate EXE or DLL file.\n"); + return false; + } + + // Convert wchar to native charset because ImageLoad only takes + // a PSTR as input. + string code_file; + if (!WindowsStringUtils::safe_wcstombs(code_file_, &code_file)) { + return false; + } + + AutoImage img(ImageLoad((PSTR)code_file.c_str(), NULL)); + if (!img) { + fprintf(stderr, "Failed to open PE file: %s\n", code_file.c_str()); + return false; + } + + info->code_file = WindowsStringUtils::GetBaseName(code_file_); + + // The date and time that the file was created by the linker. + DWORD TimeDateStamp = img->FileHeader->FileHeader.TimeDateStamp; + // The size of the file in bytes, including all headers. + DWORD SizeOfImage = 0; + PIMAGE_OPTIONAL_HEADER64 opt = + &((PIMAGE_NT_HEADERS64)img->FileHeader)->OptionalHeader; + if (opt->Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC) { + // 64-bit PE file. + SizeOfImage = opt->SizeOfImage; + } else { + // 32-bit PE file. + SizeOfImage = img->FileHeader->OptionalHeader.SizeOfImage; + } + wchar_t code_identifier[32]; + swprintf(code_identifier, + sizeof(code_identifier) / sizeof(code_identifier[0]), + L"%08X%X", TimeDateStamp, SizeOfImage); + info->code_identifier = code_identifier; + + return true; +} + +bool PDBSourceLineWriter::UsesGUID(bool *uses_guid) { + if (!uses_guid) + return false; + + CComPtr<IDiaSymbol> global; + if (FAILED(session_->get_globalScope(&global))) + return false; + + GUID guid; + if (FAILED(global->get_guid(&guid))) + return false; + + DWORD signature; + if (FAILED(global->get_signature(&signature))) + return false; + + // There are two possibilities for guid: either it's a real 128-bit GUID + // as identified in a code module by a new-style CodeView record, or it's + // a 32-bit signature (timestamp) as identified by an old-style record. + // See MDCVInfoPDB70 and MDCVInfoPDB20 in minidump_format.h. + // + // Because DIA doesn't provide a way to directly determine whether a module + // uses a GUID or a 32-bit signature, this code checks whether the first 32 + // bits of guid are the same as the signature, and if the rest of guid is + // zero. If so, then with a pretty high degree of certainty, there's an + // old-style CodeView record in use. This method will only falsely find an + // an old-style CodeView record if a real 128-bit GUID has its first 32 + // bits set the same as the module's signature (timestamp) and the rest of + // the GUID is set to 0. This is highly unlikely. + + GUID signature_guid = {signature}; // 0-initializes other members + *uses_guid = !IsEqualGUID(guid, signature_guid); + return true; +} + +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/common/windows/pdb_source_line_writer.h b/3rdParty/Breakpad/src/common/windows/pdb_source_line_writer.h new file mode 100644 index 0000000..e9e89bb --- /dev/null +++ b/3rdParty/Breakpad/src/common/windows/pdb_source_line_writer.h @@ -0,0 +1,257 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// PDBSourceLineWriter uses a pdb file produced by Visual C++ to output +// a line/address map for use with BasicSourceLineResolver. + +#ifndef COMMON_WINDOWS_PDB_SOURCE_LINE_WRITER_H_ +#define COMMON_WINDOWS_PDB_SOURCE_LINE_WRITER_H_ + +#include <atlcomcli.h> + +#include <unordered_map> +#include <string> + +#include "common/windows/omap.h" + +struct IDiaEnumLineNumbers; +struct IDiaSession; +struct IDiaSymbol; + +namespace google_breakpad { + +using std::wstring; +using std::unordered_map; + +// A structure that carries information that identifies a pdb file. +struct PDBModuleInfo { + public: + // The basename of the pdb file from which information was loaded. + wstring debug_file; + + // The pdb's identifier. For recent pdb files, the identifier consists + // of the pdb's guid, in uppercase hexadecimal form without any dashes + // or separators, followed immediately by the pdb's age, also in + // uppercase hexadecimal form. For older pdb files which have no guid, + // the identifier is the pdb's 32-bit signature value, in zero-padded + // hexadecimal form, followed immediately by the pdb's age, in lowercase + // hexadecimal form. + wstring debug_identifier; + + // A string identifying the cpu that the pdb is associated with. + // Currently, this may be "x86" or "unknown". + wstring cpu; +}; + +// A structure that carries information that identifies a PE file, +// either an EXE or a DLL. +struct PEModuleInfo { + // The basename of the PE file. + wstring code_file; + + // The PE file's code identifier, which consists of its timestamp + // and file size concatenated together into a single hex string. + // (The fields IMAGE_OPTIONAL_HEADER::SizeOfImage and + // IMAGE_FILE_HEADER::TimeDateStamp, as defined in the ImageHlp + // documentation.) This is not well documented, if it's documented + // at all, but it's what symstore does and what DbgHelp supports. + wstring code_identifier; +}; + +class PDBSourceLineWriter { + public: + enum FileFormat { + PDB_FILE, // a .pdb file containing debug symbols + EXE_FILE, // a .exe or .dll file + ANY_FILE // try PDB_FILE and then EXE_FILE + }; + + explicit PDBSourceLineWriter(); + ~PDBSourceLineWriter(); + + // Opens the given file. For executable files, the corresponding pdb + // file must be available; Open will be if it is not. + // If there is already a pdb file open, it is automatically closed. + // Returns true on success. + bool Open(const wstring &file, FileFormat format); + + // Sets the code file full path. This is optional for 32-bit modules. It is + // also optional for 64-bit modules when there is an executable file stored + // in the same directory as the PDB file. It is only required for 64-bit + // modules when the executable file is not in the same location as the PDB + // file and it must be called after Open() and before WriteMap(). + // If Open() was called for an executable file, then it is an error to call + // SetCodeFile() with a different file path and it will return false. + bool SetCodeFile(const wstring &exe_file); + + // Writes a map file from the current pdb file to the given file stream. + // Returns true on success. + bool WriteMap(FILE *map_file); + + // Closes the current pdb file and its associated resources. + void Close(); + + // Retrieves information about the module's debugging file. Returns + // true on success and false on failure. + bool GetModuleInfo(PDBModuleInfo *info); + + // Retrieves information about the module's PE file. Returns + // true on success and false on failure. + bool GetPEInfo(PEModuleInfo *info); + + // Sets uses_guid to true if the opened file uses a new-style CodeView + // record with a 128-bit GUID, or false if the opened file uses an old-style + // CodeView record. When no GUID is available, a 32-bit signature should be + // used to identify the module instead. If the information cannot be + // determined, this method returns false. + bool UsesGUID(bool *uses_guid); + + private: + // Outputs the line/address pairs for each line in the enumerator. + // Returns true on success. + bool PrintLines(IDiaEnumLineNumbers *lines); + + // Outputs a function address and name, followed by its source line list. + // block can be the same object as function, or it can be a reference + // to a code block that is lexically part of this function, but + // resides at a separate address. + // Returns true on success. + bool PrintFunction(IDiaSymbol *function, IDiaSymbol *block); + + // Outputs all functions as described above. Returns true on success. + bool PrintFunctions(); + + // Outputs all of the source files in the session's pdb file. + // Returns true on success. + bool PrintSourceFiles(); + + // Outputs all of the frame information necessary to construct stack + // backtraces in the absence of frame pointers. For x86 data stored in + // .pdb files. Returns true on success. + bool PrintFrameDataUsingPDB(); + + // Outputs all of the frame information necessary to construct stack + // backtraces in the absence of frame pointers. For x64 data stored in + // .exe, .dll files. Returns true on success. + bool PrintFrameDataUsingEXE(); + + // Outputs all of the frame information necessary to construct stack + // backtraces in the absence of frame pointers. Returns true on success. + bool PrintFrameData(); + + // Outputs a single public symbol address and name, if the symbol corresponds + // to a code address. Returns true on success. If symbol is does not + // correspond to code, returns true without outputting anything. + bool PrintCodePublicSymbol(IDiaSymbol *symbol); + + // Outputs a line identifying the PDB file that is being dumped, along with + // its uuid and age. + bool PrintPDBInfo(); + + // Outputs a line identifying the PE file corresponding to the PDB + // file that is being dumped, along with its code identifier, + // which consists of its timestamp and file size. + bool PrintPEInfo(); + + // Returns true if this filename has already been seen, + // and an ID is stored for it, or false if it has not. + bool FileIDIsCached(const wstring &file) { + return unique_files_.find(file) != unique_files_.end(); + } + + // Cache this filename and ID for later reuse. + void CacheFileID(const wstring &file, DWORD id) { + unique_files_[file] = id; + } + + // Store this ID in the cache as a duplicate for this filename. + void StoreDuplicateFileID(const wstring &file, DWORD id) { + unordered_map<wstring, DWORD>::iterator iter = unique_files_.find(file); + if (iter != unique_files_.end()) { + // map this id to the previously seen one + file_ids_[id] = iter->second; + } + } + + // Given a file's unique ID, return the ID that should be used to + // reference it. There may be multiple files with identical filenames + // but different unique IDs. The cache attempts to coalesce these into + // one ID per unique filename. + DWORD GetRealFileID(DWORD id) { + unordered_map<DWORD, DWORD>::iterator iter = file_ids_.find(id); + if (iter == file_ids_.end()) + return id; + return iter->second; + } + + // Find the PE file corresponding to the loaded PDB file, and + // set the code_file_ member. Returns false on failure. + bool FindPEFile(); + + // Returns the function name for a symbol. If possible, the name is + // undecorated. If the symbol's decorated form indicates the size of + // parameters on the stack, this information is returned in stack_param_size. + // Returns true on success. If the symbol doesn't encode parameter size + // information, stack_param_size is set to -1. + static bool GetSymbolFunctionName(IDiaSymbol *function, BSTR *name, + int *stack_param_size); + + // Returns the number of bytes of stack space used for a function's + // parameters. function must have the tag SymTagFunction. In the event of + // a failure, returns 0, which is also a valid number of bytes. + static int GetFunctionStackParamSize(IDiaSymbol *function); + + // The filename of the PE file corresponding to the currently-open + // pdb file. + wstring code_file_; + + // The session for the currently-open pdb file. + CComPtr<IDiaSession> session_; + + // The current output file for this WriteMap invocation. + FILE *output_; + + // There may be many duplicate filenames with different IDs. + // This maps from the DIA "unique ID" to a single ID per unique + // filename. + unordered_map<DWORD, DWORD> file_ids_; + // This maps unique filenames to file IDs. + unordered_map<wstring, DWORD> unique_files_; + + // This is used for calculating post-transform symbol addresses and lengths. + ImageMap image_map_; + + // Disallow copy ctor and operator= + PDBSourceLineWriter(const PDBSourceLineWriter&); + void operator=(const PDBSourceLineWriter&); +}; + +} // namespace google_breakpad + +#endif // COMMON_WINDOWS_PDB_SOURCE_LINE_WRITER_H_ diff --git a/3rdParty/Breakpad/src/common/windows/string_utils-inl.h b/3rdParty/Breakpad/src/common/windows/string_utils-inl.h index d281aaa..9b63607 100644 --- a/3rdParty/Breakpad/src/common/windows/string_utils-inl.h +++ b/3rdParty/Breakpad/src/common/windows/string_utils-inl.h @@ -30,8 +30,8 @@ // string_utils-inl.h: Safer string manipulation on Windows, supporting // pre-MSVC8 environments. -#ifndef COMMON_WINDOWS_STRING_UTILS_INL_H__ -#define COMMON_WINDOWS_STRING_UTILS_INL_H__ +#ifndef COMMON_WINDOWS_STRING_UTILS_INL_H_ +#define COMMON_WINDOWS_STRING_UTILS_INL_H_ #include <stdarg.h> #include <wchar.h> @@ -139,4 +139,4 @@ inline void WindowsStringUtils::safe_wcsncpy(wchar_t *destination, } // namespace google_breakpad -#endif // COMMON_WINDOWS_STRING_UTILS_INL_H__ +#endif // COMMON_WINDOWS_STRING_UTILS_INL_H_ diff --git a/3rdParty/Breakpad/src/common/windows/string_utils.cc b/3rdParty/Breakpad/src/common/windows/string_utils.cc new file mode 100644 index 0000000..2728000 --- /dev/null +++ b/3rdParty/Breakpad/src/common/windows/string_utils.cc @@ -0,0 +1,133 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include <cassert> +#include <vector> + +#include "common/windows/string_utils-inl.h" + +namespace google_breakpad { + +// static +wstring WindowsStringUtils::GetBaseName(const wstring &filename) { + wstring base_name(filename); + size_t slash_pos = base_name.find_last_of(L"/\\"); + if (slash_pos != wstring::npos) { + base_name.erase(0, slash_pos + 1); + } + return base_name; +} + +// static +bool WindowsStringUtils::safe_mbstowcs(const string &mbs, wstring *wcs) { + assert(wcs); + + // First, determine the length of the destination buffer. + size_t wcs_length; + +#if _MSC_VER >= 1400 // MSVC 2005/8 + errno_t err; + if ((err = mbstowcs_s(&wcs_length, NULL, 0, mbs.c_str(), _TRUNCATE)) != 0) { + return false; + } + assert(wcs_length > 0); +#else // _MSC_VER >= 1400 + if ((wcs_length = mbstowcs(NULL, mbs.c_str(), mbs.length())) == (size_t)-1) { + return false; + } + + // Leave space for the 0-terminator. + ++wcs_length; +#endif // _MSC_VER >= 1400 + + std::vector<wchar_t> wcs_v(wcs_length); + + // Now, convert. +#if _MSC_VER >= 1400 // MSVC 2005/8 + if ((err = mbstowcs_s(NULL, &wcs_v[0], wcs_length, mbs.c_str(), + _TRUNCATE)) != 0) { + return false; + } +#else // _MSC_VER >= 1400 + if (mbstowcs(&wcs_v[0], mbs.c_str(), mbs.length()) == (size_t)-1) { + return false; + } + + // Ensure presence of 0-terminator. + wcs_v[wcs_length - 1] = '\0'; +#endif // _MSC_VER >= 1400 + + *wcs = &wcs_v[0]; + return true; +} + +// static +bool WindowsStringUtils::safe_wcstombs(const wstring &wcs, string *mbs) { + assert(mbs); + + // First, determine the length of the destination buffer. + size_t mbs_length; + +#if _MSC_VER >= 1400 // MSVC 2005/8 + errno_t err; + if ((err = wcstombs_s(&mbs_length, NULL, 0, wcs.c_str(), _TRUNCATE)) != 0) { + return false; + } + assert(mbs_length > 0); +#else // _MSC_VER >= 1400 + if ((mbs_length = wcstombs(NULL, wcs.c_str(), wcs.length())) == (size_t)-1) { + return false; + } + + // Leave space for the 0-terminator. + ++mbs_length; +#endif // _MSC_VER >= 1400 + + std::vector<char> mbs_v(mbs_length); + + // Now, convert. +#if _MSC_VER >= 1400 // MSVC 2005/8 + if ((err = wcstombs_s(NULL, &mbs_v[0], mbs_length, wcs.c_str(), + _TRUNCATE)) != 0) { + return false; + } +#else // _MSC_VER >= 1400 + if (wcstombs(&mbs_v[0], wcs.c_str(), wcs.length()) == (size_t)-1) { + return false; + } + + // Ensure presence of 0-terminator. + mbs_v[mbs_length - 1] = '\0'; +#endif // _MSC_VER >= 1400 + + *mbs = &mbs_v[0]; + return true; +} + +} // namespace google_breakpad |