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authorRemko Tronçon <git@el-tramo.be>2012-08-17 21:07:13 (GMT)
committerRemko Tronçon <git@el-tramo.be>2012-08-17 21:07:13 (GMT)
commit4397df6b409ca84f63838fa635fc2abe8af80b71 (patch)
tree0806d51a1aaa6a1f9ac00df318be72fbee19ec1d /3rdParty/Breakpad/src/common
parentead6c91f24d77de3319e77ae1354387407065ef1 (diff)
downloadswift-contrib-4397df6b409ca84f63838fa635fc2abe8af80b71.zip
swift-contrib-4397df6b409ca84f63838fa635fc2abe8af80b71.tar.bz2
Added Breakpad support for Windows.
Diffstat (limited to '3rdParty/Breakpad/src/common')
-rw-r--r--3rdParty/Breakpad/src/common/byte_cursor.h265
-rw-r--r--3rdParty/Breakpad/src/common/convert_UTF.c533
-rw-r--r--3rdParty/Breakpad/src/common/convert_UTF.h143
-rw-r--r--3rdParty/Breakpad/src/common/dwarf/bytereader-inl.h175
-rw-r--r--3rdParty/Breakpad/src/common/dwarf/bytereader.cc245
-rw-r--r--3rdParty/Breakpad/src/common/dwarf/bytereader.h310
-rw-r--r--3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.cc199
-rw-r--r--3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.h367
-rw-r--r--3rdParty/Breakpad/src/common/dwarf/dwarf2enums.h650
-rw-r--r--3rdParty/Breakpad/src/common/dwarf/dwarf2reader.cc2340
-rw-r--r--3rdParty/Breakpad/src/common/dwarf/dwarf2reader.h1051
-rw-r--r--3rdParty/Breakpad/src/common/dwarf/line_state_machine.h61
-rw-r--r--3rdParty/Breakpad/src/common/dwarf/types.h55
-rw-r--r--3rdParty/Breakpad/src/common/dwarf_cfi_to_module.cc258
-rw-r--r--3rdParty/Breakpad/src/common/dwarf_cfi_to_module.h196
-rw-r--r--3rdParty/Breakpad/src/common/dwarf_cu_to_module.cc936
-rw-r--r--3rdParty/Breakpad/src/common/dwarf_cu_to_module.h277
-rw-r--r--3rdParty/Breakpad/src/common/dwarf_line_to_module.cc138
-rw-r--r--3rdParty/Breakpad/src/common/dwarf_line_to_module.h182
-rw-r--r--3rdParty/Breakpad/src/common/language.cc83
-rw-r--r--3rdParty/Breakpad/src/common/language.h88
-rw-r--r--3rdParty/Breakpad/src/common/linux/linux_libc_support.h95
-rw-r--r--3rdParty/Breakpad/src/common/mac/MachIPC.h301
-rw-r--r--3rdParty/Breakpad/src/common/mac/MachIPC.mm306
-rw-r--r--3rdParty/Breakpad/src/common/mac/bootstrap_compat.cc42
-rw-r--r--3rdParty/Breakpad/src/common/mac/bootstrap_compat.h54
-rw-r--r--3rdParty/Breakpad/src/common/mac/byteswap.h48
-rw-r--r--3rdParty/Breakpad/src/common/mac/dump_syms.h172
-rw-r--r--3rdParty/Breakpad/src/common/mac/dump_syms.mm496
-rw-r--r--3rdParty/Breakpad/src/common/mac/file_id.cc101
-rw-r--r--3rdParty/Breakpad/src/common/mac/file_id.h78
-rw-r--r--3rdParty/Breakpad/src/common/mac/macho_id.cc366
-rw-r--r--3rdParty/Breakpad/src/common/mac/macho_id.h120
-rw-r--r--3rdParty/Breakpad/src/common/mac/macho_reader.cc530
-rw-r--r--3rdParty/Breakpad/src/common/mac/macho_reader.h459
-rw-r--r--3rdParty/Breakpad/src/common/mac/macho_utilities.cc90
-rw-r--r--3rdParty/Breakpad/src/common/mac/macho_utilities.h92
-rw-r--r--3rdParty/Breakpad/src/common/mac/macho_walker.cc267
-rw-r--r--3rdParty/Breakpad/src/common/mac/macho_walker.h117
-rw-r--r--3rdParty/Breakpad/src/common/mac/scoped_task_suspend-inl.h56
-rw-r--r--3rdParty/Breakpad/src/common/mac/string_utilities.cc84
-rw-r--r--3rdParty/Breakpad/src/common/mac/string_utilities.h52
-rw-r--r--3rdParty/Breakpad/src/common/md5.cc251
-rw-r--r--3rdParty/Breakpad/src/common/md5.h27
-rw-r--r--3rdParty/Breakpad/src/common/memory.h218
-rw-r--r--3rdParty/Breakpad/src/common/module.cc294
-rw-r--r--3rdParty/Breakpad/src/common/module.h321
-rw-r--r--3rdParty/Breakpad/src/common/stabs_reader.cc315
-rw-r--r--3rdParty/Breakpad/src/common/stabs_reader.h326
-rw-r--r--3rdParty/Breakpad/src/common/stabs_to_module.cc200
-rw-r--r--3rdParty/Breakpad/src/common/stabs_to_module.h143
-rw-r--r--3rdParty/Breakpad/src/common/string_conversion.cc155
-rw-r--r--3rdParty/Breakpad/src/common/string_conversion.h68
-rw-r--r--3rdParty/Breakpad/src/common/using_std_string.h65
-rw-r--r--3rdParty/Breakpad/src/common/windows/guid_string.cc76
-rw-r--r--3rdParty/Breakpad/src/common/windows/guid_string.h58
-rw-r--r--3rdParty/Breakpad/src/common/windows/string_utils-inl.h142
57 files changed, 15137 insertions, 0 deletions
diff --git a/3rdParty/Breakpad/src/common/byte_cursor.h b/3rdParty/Breakpad/src/common/byte_cursor.h
new file mode 100644
index 0000000..accd54e
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/byte_cursor.h
@@ -0,0 +1,265 @@
+// -*- 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>
+
+// byte_cursor.h: Classes for parsing values from a buffer of bytes.
+// The ByteCursor class provides a convenient interface for reading
+// fixed-size integers of arbitrary endianness, being thorough about
+// checking for buffer overruns.
+
+#ifndef COMMON_BYTE_CURSOR_H_
+#define COMMON_BYTE_CURSOR_H_
+
+#include <assert.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <string>
+
+#include "common/using_std_string.h"
+
+namespace google_breakpad {
+
+// A buffer holding a series of bytes.
+struct ByteBuffer {
+ ByteBuffer() : start(0), end(0) { }
+ ByteBuffer(const uint8_t *set_start, size_t set_size)
+ : start(set_start), end(set_start + set_size) { }
+ ~ByteBuffer() { };
+
+ // Equality operators. Useful in unit tests, and when we're using
+ // ByteBuffers to refer to regions of a larger buffer.
+ bool operator==(const ByteBuffer &that) const {
+ return start == that.start && end == that.end;
+ }
+ bool operator!=(const ByteBuffer &that) const {
+ return start != that.start || end != that.end;
+ }
+
+ // Not C++ style guide compliant, but this definitely belongs here.
+ size_t Size() const {
+ assert(start <= end);
+ return end - start;
+ }
+
+ const uint8_t *start, *end;
+};
+
+// A cursor pointing into a ByteBuffer that can parse numbers of various
+// widths and representations, strings, and data blocks, advancing through
+// the buffer as it goes. All ByteCursor operations check that accesses
+// haven't gone beyond the end of the enclosing ByteBuffer.
+class ByteCursor {
+ public:
+ // Create a cursor reading bytes from the start of BUFFER. By default, the
+ // cursor reads multi-byte values in little-endian form.
+ ByteCursor(const ByteBuffer *buffer, bool big_endian = false)
+ : buffer_(buffer), here_(buffer->start),
+ big_endian_(big_endian), complete_(true) { }
+
+ // Accessor and setter for this cursor's endianness flag.
+ bool big_endian() const { return big_endian_; }
+ void set_big_endian(bool big_endian) { big_endian_ = big_endian; }
+
+ // Accessor and setter for this cursor's current position. The setter
+ // returns a reference to this cursor.
+ const uint8_t *here() const { return here_; }
+ ByteCursor &set_here(const uint8_t *here) {
+ assert(buffer_->start <= here && here <= buffer_->end);
+ here_ = here;
+ return *this;
+ }
+
+ // Return the number of bytes available to read at the cursor.
+ size_t Available() const { return size_t(buffer_->end - here_); }
+
+ // Return true if this cursor is at the end of its buffer.
+ bool AtEnd() const { return Available() == 0; }
+
+ // When used as a boolean value this cursor converts to true if all
+ // prior reads have been completed, or false if we ran off the end
+ // of the buffer.
+ operator bool() const { return complete_; }
+
+ // Read a SIZE-byte integer at this cursor, signed if IS_SIGNED is true,
+ // unsigned otherwise, using the cursor's established endianness, and set
+ // *RESULT to the number. If we read off the end of our buffer, clear
+ // this cursor's complete_ flag, and store a dummy value in *RESULT.
+ // Return a reference to this cursor.
+ template<typename T>
+ ByteCursor &Read(size_t size, bool is_signed, T *result) {
+ if (CheckAvailable(size)) {
+ T v = 0;
+ if (big_endian_) {
+ for (size_t i = 0; i < size; i++)
+ v = (v << 8) + here_[i];
+ } else {
+ // This loop condition looks weird, but size_t is unsigned, so
+ // decrementing i after it is zero yields the largest size_t value.
+ for (size_t i = size - 1; i < size; i--)
+ v = (v << 8) + here_[i];
+ }
+ if (is_signed && size < sizeof(T)) {
+ size_t sign_bit = (T)1 << (size * 8 - 1);
+ v = (v ^ sign_bit) - sign_bit;
+ }
+ here_ += size;
+ *result = v;
+ } else {
+ *result = (T) 0xdeadbeef;
+ }
+ return *this;
+ }
+
+ // Read an integer, using the cursor's established endianness and
+ // *RESULT's size and signedness, and set *RESULT to the number. If we
+ // read off the end of our buffer, clear this cursor's complete_ flag.
+ // Return a reference to this cursor.
+ template<typename T>
+ ByteCursor &operator>>(T &result) {
+ bool T_is_signed = (T)-1 < 0;
+ return Read(sizeof(T), T_is_signed, &result);
+ }
+
+ // Copy the SIZE bytes at the cursor to BUFFER, and advance this
+ // cursor to the end of them. If we read off the end of our buffer,
+ // clear this cursor's complete_ flag, and set *POINTER to NULL.
+ // Return a reference to this cursor.
+ ByteCursor &Read(uint8_t *buffer, size_t size) {
+ if (CheckAvailable(size)) {
+ memcpy(buffer, here_, size);
+ here_ += size;
+ }
+ return *this;
+ }
+
+ // Set STR to a copy of the '\0'-terminated string at the cursor. If the
+ // byte buffer does not contain a terminating zero, clear this cursor's
+ // complete_ flag, and set STR to the empty string. Return a reference to
+ // this cursor.
+ ByteCursor &CString(string *str) {
+ const uint8_t *end
+ = static_cast<const uint8_t *>(memchr(here_, '\0', Available()));
+ if (end) {
+ str->assign(reinterpret_cast<const char *>(here_), end - here_);
+ here_ = end + 1;
+ } else {
+ str->clear();
+ here_ = buffer_->end;
+ complete_ = false;
+ }
+ return *this;
+ }
+
+ // Like CString(STR), but extract the string from a fixed-width buffer
+ // LIMIT bytes long, which may or may not contain a terminating '\0'
+ // byte. Specifically:
+ //
+ // - If there are not LIMIT bytes available at the cursor, clear the
+ // cursor's complete_ flag and set STR to the empty string.
+ //
+ // - Otherwise, if the LIMIT bytes at the cursor contain any '\0'
+ // characters, set *STR to a copy of the bytes before the first '\0',
+ // and advance the cursor by LIMIT bytes.
+ //
+ // - Otherwise, set *STR to a copy of those LIMIT bytes, and advance the
+ // cursor by LIMIT bytes.
+ ByteCursor &CString(string *str, size_t limit) {
+ if (CheckAvailable(limit)) {
+ const uint8_t *end
+ = static_cast<const uint8_t *>(memchr(here_, '\0', limit));
+ if (end)
+ str->assign(reinterpret_cast<const char *>(here_), end - here_);
+ else
+ str->assign(reinterpret_cast<const char *>(here_), limit);
+ here_ += limit;
+ } else {
+ str->clear();
+ }
+ return *this;
+ }
+
+ // Set *POINTER to point to the SIZE bytes at the cursor, and advance
+ // this cursor to the end of them. If SIZE is omitted, don't move the
+ // cursor. If we read off the end of our buffer, clear this cursor's
+ // complete_ flag, and set *POINTER to NULL. Return a reference to this
+ // cursor.
+ ByteCursor &PointTo(const uint8_t **pointer, size_t size = 0) {
+ if (CheckAvailable(size)) {
+ *pointer = here_;
+ here_ += size;
+ } else {
+ *pointer = NULL;
+ }
+ return *this;
+ }
+
+ // Skip SIZE bytes at the cursor. If doing so would advance us off
+ // the end of our buffer, clear this cursor's complete_ flag, and
+ // set *POINTER to NULL. Return a reference to this cursor.
+ ByteCursor &Skip(size_t size) {
+ if (CheckAvailable(size))
+ here_ += size;
+ return *this;
+ }
+
+ private:
+ // If there are at least SIZE bytes available to read from the buffer,
+ // return true. Otherwise, set here_ to the end of the buffer, set
+ // complete_ to false, and return false.
+ bool CheckAvailable(size_t size) {
+ if (Available() >= size) {
+ return true;
+ } else {
+ here_ = buffer_->end;
+ complete_ = false;
+ return false;
+ }
+ }
+
+ // The buffer we're reading bytes from.
+ const ByteBuffer *buffer_;
+
+ // The next byte within buffer_ that we'll read.
+ const uint8_t *here_;
+
+ // True if we should read numbers in big-endian form; false if we
+ // should read in little-endian form.
+ bool big_endian_;
+
+ // True if we've been able to read all we've been asked to.
+ bool complete_;
+};
+
+} // namespace google_breakpad
+
+#endif // COMMON_BYTE_CURSOR_H_
diff --git a/3rdParty/Breakpad/src/common/convert_UTF.c b/3rdParty/Breakpad/src/common/convert_UTF.c
new file mode 100644
index 0000000..80178d3
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/convert_UTF.c
@@ -0,0 +1,533 @@
+/*
+ * Copyright 2001-2004 Unicode, Inc.
+ *
+ * Disclaimer
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+/* ---------------------------------------------------------------------
+
+Conversions between UTF32, UTF-16, and UTF-8. Source code file.
+Author: Mark E. Davis, 1994.
+Rev History: Rick McGowan, fixes & updates May 2001.
+Sept 2001: fixed const & error conditions per
+mods suggested by S. Parent & A. Lillich.
+June 2002: Tim Dodd added detection and handling of incomplete
+source sequences, enhanced error detection, added casts
+to eliminate compiler warnings.
+July 2003: slight mods to back out aggressive FFFE detection.
+Jan 2004: updated switches in from-UTF8 conversions.
+Oct 2004: updated to use UNI_MAX_LEGAL_UTF32 in UTF-32 conversions.
+
+See the header file "ConvertUTF.h" for complete documentation.
+
+------------------------------------------------------------------------ */
+
+
+#include "convert_UTF.h"
+#ifdef CVTUTF_DEBUG
+#include <stdio.h>
+#endif
+
+static const int halfShift = 10; /* used for shifting by 10 bits */
+
+static const UTF32 halfBase = 0x0010000UL;
+static const UTF32 halfMask = 0x3FFUL;
+
+#define UNI_SUR_HIGH_START (UTF32)0xD800
+#define UNI_SUR_HIGH_END (UTF32)0xDBFF
+#define UNI_SUR_LOW_START (UTF32)0xDC00
+#define UNI_SUR_LOW_END (UTF32)0xDFFF
+#define false 0
+#define true 1
+
+/* --------------------------------------------------------------------- */
+
+ConversionResult ConvertUTF32toUTF16 (const UTF32** sourceStart, const UTF32* sourceEnd,
+ UTF16** targetStart, UTF16* targetEnd, ConversionFlags flags) {
+ ConversionResult result = conversionOK;
+ const UTF32* source = *sourceStart;
+ UTF16* target = *targetStart;
+ while (source < sourceEnd) {
+ UTF32 ch;
+ if (target >= targetEnd) {
+ result = targetExhausted; break;
+ }
+ ch = *source++;
+ if (ch <= UNI_MAX_BMP) { /* Target is a character <= 0xFFFF */
+ /* UTF-16 surrogate values are illegal in UTF-32; 0xffff or 0xfffe are both reserved values */
+ if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) {
+ if (flags == strictConversion) {
+ --source; /* return to the illegal value itself */
+ result = sourceIllegal;
+ break;
+ } else {
+ *target++ = UNI_REPLACEMENT_CHAR;
+ }
+ } else {
+ *target++ = (UTF16)ch; /* normal case */
+ }
+ } else if (ch > UNI_MAX_LEGAL_UTF32) {
+ if (flags == strictConversion) {
+ result = sourceIllegal;
+ } else {
+ *target++ = UNI_REPLACEMENT_CHAR;
+ }
+ } else {
+ /* target is a character in range 0xFFFF - 0x10FFFF. */
+ if (target + 1 >= targetEnd) {
+ --source; /* Back up source pointer! */
+ result = targetExhausted; break;
+ }
+ ch -= halfBase;
+ *target++ = (UTF16)((ch >> halfShift) + UNI_SUR_HIGH_START);
+ *target++ = (UTF16)((ch & halfMask) + UNI_SUR_LOW_START);
+ }
+ }
+*sourceStart = source;
+*targetStart = target;
+return result;
+}
+
+/* --------------------------------------------------------------------- */
+
+ConversionResult ConvertUTF16toUTF32 (const UTF16** sourceStart, const UTF16* sourceEnd,
+ UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags) {
+ ConversionResult result = conversionOK;
+ const UTF16* source = *sourceStart;
+ UTF32* target = *targetStart;
+ UTF32 ch, ch2;
+ while (source < sourceEnd) {
+ const UTF16* oldSource = source; /* In case we have to back up because of target overflow. */
+ ch = *source++;
+ /* If we have a surrogate pair, convert to UTF32 first. */
+ if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END) {
+ /* If the 16 bits following the high surrogate are in the source buffer... */
+ if (source < sourceEnd) {
+ ch2 = *source;
+ /* If it's a low surrogate, convert to UTF32. */
+ if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END) {
+ ch = ((ch - UNI_SUR_HIGH_START) << halfShift)
+ + (ch2 - UNI_SUR_LOW_START) + halfBase;
+ ++source;
+ } else if (flags == strictConversion) { /* it's an unpaired high surrogate */
+ --source; /* return to the illegal value itself */
+ result = sourceIllegal;
+ break;
+ }
+ } else { /* We don't have the 16 bits following the high surrogate. */
+ --source; /* return to the high surrogate */
+ result = sourceExhausted;
+ break;
+ }
+ } else if (flags == strictConversion) {
+ /* UTF-16 surrogate values are illegal in UTF-32 */
+ if (ch >= UNI_SUR_LOW_START && ch <= UNI_SUR_LOW_END) {
+ --source; /* return to the illegal value itself */
+ result = sourceIllegal;
+ break;
+ }
+ }
+ if (target >= targetEnd) {
+ source = oldSource; /* Back up source pointer! */
+ result = targetExhausted; break;
+ }
+ *target++ = ch;
+ }
+ *sourceStart = source;
+ *targetStart = target;
+#ifdef CVTUTF_DEBUG
+ if (result == sourceIllegal) {
+ fprintf(stderr, "ConvertUTF16toUTF32 illegal seq 0x%04x,%04x\n", ch, ch2);
+ fflush(stderr);
+ }
+#endif
+ return result;
+}
+
+/* --------------------------------------------------------------------- */
+
+/*
+ * Index into the table below with the first byte of a UTF-8 sequence to
+ * get the number of trailing bytes that are supposed to follow it.
+ * Note that *legal* UTF-8 values can't have 4 or 5-bytes. The table is
+ * left as-is for anyone who may want to do such conversion, which was
+ * allowed in earlier algorithms.
+ */
+static const char trailingBytesForUTF8[256] = {
+ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+ 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5
+};
+
+/*
+ * Magic values subtracted from a buffer value during UTF8 conversion.
+ * This table contains as many values as there might be trailing bytes
+ * in a UTF-8 sequence.
+ */
+static const UTF32 offsetsFromUTF8[6] = { 0x00000000UL, 0x00003080UL, 0x000E2080UL,
+ 0x03C82080UL, 0xFA082080UL, 0x82082080UL };
+
+/*
+ * Once the bits are split out into bytes of UTF-8, this is a mask OR-ed
+ * into the first byte, depending on how many bytes follow. There are
+ * as many entries in this table as there are UTF-8 sequence types.
+ * (I.e., one byte sequence, two byte... etc.). Remember that sequencs
+ * for *legal* UTF-8 will be 4 or fewer bytes total.
+ */
+static const UTF8 firstByteMark[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
+
+/* --------------------------------------------------------------------- */
+
+/* The interface converts a whole buffer to avoid function-call overhead.
+* Constants have been gathered. Loops & conditionals have been removed as
+* much as possible for efficiency, in favor of drop-through switches.
+* (See "Note A" at the bottom of the file for equivalent code.)
+* If your compiler supports it, the "isLegalUTF8" call can be turned
+* into an inline function.
+*/
+
+/* --------------------------------------------------------------------- */
+
+ConversionResult ConvertUTF16toUTF8 (const UTF16** sourceStart, const UTF16* sourceEnd,
+ UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags) {
+ ConversionResult result = conversionOK;
+ const UTF16* source = *sourceStart;
+ UTF8* target = *targetStart;
+ while (source < sourceEnd) {
+ UTF32 ch;
+ unsigned short bytesToWrite = 0;
+ const UTF32 byteMask = 0xBF;
+ const UTF32 byteMark = 0x80;
+ const UTF16* oldSource = source; /* In case we have to back up because of target overflow. */
+ ch = *source++;
+ /* If we have a surrogate pair, convert to UTF32 first. */
+ if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END) {
+ /* If the 16 bits following the high surrogate are in the source buffer... */
+ if (source < sourceEnd) {
+ UTF32 ch2 = *source;
+ /* If it's a low surrogate, convert to UTF32. */
+ if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END) {
+ ch = ((ch - UNI_SUR_HIGH_START) << halfShift)
+ + (ch2 - UNI_SUR_LOW_START) + halfBase;
+ ++source;
+ } else if (flags == strictConversion) { /* it's an unpaired high surrogate */
+ --source; /* return to the illegal value itself */
+ result = sourceIllegal;
+ break;
+ }
+ } else { /* We don't have the 16 bits following the high surrogate. */
+ --source; /* return to the high surrogate */
+ result = sourceExhausted;
+ break;
+ }
+ } else if (flags == strictConversion) {
+ /* UTF-16 surrogate values are illegal in UTF-32 */
+ if (ch >= UNI_SUR_LOW_START && ch <= UNI_SUR_LOW_END) {
+ --source; /* return to the illegal value itself */
+ result = sourceIllegal;
+ break;
+ }
+ }
+ /* Figure out how many bytes the result will require */
+ if (ch < (UTF32)0x80) { bytesToWrite = 1;
+ } else if (ch < (UTF32)0x800) { bytesToWrite = 2;
+ } else if (ch < (UTF32)0x10000) { bytesToWrite = 3;
+ } else if (ch < (UTF32)0x110000) { bytesToWrite = 4;
+ } else { bytesToWrite = 3;
+ ch = UNI_REPLACEMENT_CHAR;
+ }
+
+ target += bytesToWrite;
+ if (target > targetEnd) {
+ source = oldSource; /* Back up source pointer! */
+ target -= bytesToWrite; result = targetExhausted; break;
+ }
+ switch (bytesToWrite) { /* note: everything falls through. */
+ case 4: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;
+ case 3: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;
+ case 2: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;
+ case 1: *--target = (UTF8)(ch | firstByteMark[bytesToWrite]);
+ }
+ target += bytesToWrite;
+ }
+*sourceStart = source;
+*targetStart = target;
+return result;
+}
+
+/* --------------------------------------------------------------------- */
+
+/*
+ * Utility routine to tell whether a sequence of bytes is legal UTF-8.
+ * This must be called with the length pre-determined by the first byte.
+ * If not calling this from ConvertUTF8to*, then the length can be set by:
+ * length = trailingBytesForUTF8[*source]+1;
+ * and the sequence is illegal right away if there aren't that many bytes
+ * available.
+ * If presented with a length > 4, this returns false. The Unicode
+ * definition of UTF-8 goes up to 4-byte sequences.
+ */
+
+static Boolean isLegalUTF8(const UTF8 *source, int length) {
+ UTF8 a;
+ const UTF8 *srcptr = source+length;
+ switch (length) {
+ default: return false;
+ /* Everything else falls through when "true"... */
+ case 4: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return false;
+ case 3: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return false;
+ case 2: if ((a = (*--srcptr)) > 0xBF) return false;
+
+ switch (*source) {
+ /* no fall-through in this inner switch */
+ case 0xE0: if (a < 0xA0) return false; break;
+ case 0xED: if (a > 0x9F) return false; break;
+ case 0xF0: if (a < 0x90) return false; break;
+ case 0xF4: if (a > 0x8F) return false; break;
+ default: if (a < 0x80) return false;
+ }
+
+ case 1: if (*source >= 0x80 && *source < 0xC2) return false;
+ }
+ if (*source > 0xF4) return false;
+ return true;
+}
+
+/* --------------------------------------------------------------------- */
+
+/*
+ * Exported function to return whether a UTF-8 sequence is legal or not.
+ * This is not used here; it's just exported.
+ */
+Boolean isLegalUTF8Sequence(const UTF8 *source, const UTF8 *sourceEnd) {
+ int length = trailingBytesForUTF8[*source]+1;
+ if (source+length > sourceEnd) {
+ return false;
+ }
+ return isLegalUTF8(source, length);
+}
+
+/* --------------------------------------------------------------------- */
+
+ConversionResult ConvertUTF8toUTF16 (const UTF8** sourceStart, const UTF8* sourceEnd,
+ UTF16** targetStart, UTF16* targetEnd, ConversionFlags flags) {
+ ConversionResult result = conversionOK;
+ const UTF8* source = *sourceStart;
+ UTF16* target = *targetStart;
+ while (source < sourceEnd) {
+ UTF32 ch = 0;
+ unsigned short extraBytesToRead = trailingBytesForUTF8[*source];
+ if (source + extraBytesToRead >= sourceEnd) {
+ result = sourceExhausted; break;
+ }
+ /* Do this check whether lenient or strict */
+ if (! isLegalUTF8(source, extraBytesToRead+1)) {
+ result = sourceIllegal;
+ break;
+ }
+ /*
+ * The cases all fall through. See "Note A" below.
+ */
+ switch (extraBytesToRead) {
+ case 5: ch += *source++; ch <<= 6; /* remember, illegal UTF-8 */
+ case 4: ch += *source++; ch <<= 6; /* remember, illegal UTF-8 */
+ case 3: ch += *source++; ch <<= 6;
+ case 2: ch += *source++; ch <<= 6;
+ case 1: ch += *source++; ch <<= 6;
+ case 0: ch += *source++;
+ }
+ ch -= offsetsFromUTF8[extraBytesToRead];
+
+ if (target >= targetEnd) {
+ source -= (extraBytesToRead+1); /* Back up source pointer! */
+ result = targetExhausted; break;
+ }
+ if (ch <= UNI_MAX_BMP) { /* Target is a character <= 0xFFFF */
+ /* UTF-16 surrogate values are illegal in UTF-32 */
+ if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) {
+ if (flags == strictConversion) {
+ source -= (extraBytesToRead+1); /* return to the illegal value itself */
+ result = sourceIllegal;
+ break;
+ } else {
+ *target++ = UNI_REPLACEMENT_CHAR;
+ }
+ } else {
+ *target++ = (UTF16)ch; /* normal case */
+ }
+ } else if (ch > UNI_MAX_UTF16) {
+ if (flags == strictConversion) {
+ result = sourceIllegal;
+ source -= (extraBytesToRead+1); /* return to the start */
+ break; /* Bail out; shouldn't continue */
+ } else {
+ *target++ = UNI_REPLACEMENT_CHAR;
+ }
+ } else {
+ /* target is a character in range 0xFFFF - 0x10FFFF. */
+ if (target + 1 >= targetEnd) {
+ source -= (extraBytesToRead+1); /* Back up source pointer! */
+ result = targetExhausted; break;
+ }
+ ch -= halfBase;
+ *target++ = (UTF16)((ch >> halfShift) + UNI_SUR_HIGH_START);
+ *target++ = (UTF16)((ch & halfMask) + UNI_SUR_LOW_START);
+ }
+ }
+*sourceStart = source;
+*targetStart = target;
+return result;
+}
+
+/* --------------------------------------------------------------------- */
+
+ConversionResult ConvertUTF32toUTF8 (const UTF32** sourceStart, const UTF32* sourceEnd,
+ UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags) {
+ ConversionResult result = conversionOK;
+ const UTF32* source = *sourceStart;
+ UTF8* target = *targetStart;
+ while (source < sourceEnd) {
+ UTF32 ch;
+ unsigned short bytesToWrite = 0;
+ const UTF32 byteMask = 0xBF;
+ const UTF32 byteMark = 0x80;
+ ch = *source++;
+ if (flags == strictConversion ) {
+ /* UTF-16 surrogate values are illegal in UTF-32 */
+ if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) {
+ --source; /* return to the illegal value itself */
+ result = sourceIllegal;
+ break;
+ }
+ }
+ /*
+ * Figure out how many bytes the result will require. Turn any
+ * illegally large UTF32 things (> Plane 17) into replacement chars.
+ */
+ if (ch < (UTF32)0x80) { bytesToWrite = 1;
+ } else if (ch < (UTF32)0x800) { bytesToWrite = 2;
+ } else if (ch < (UTF32)0x10000) { bytesToWrite = 3;
+ } else if (ch <= UNI_MAX_LEGAL_UTF32) { bytesToWrite = 4;
+ } else { bytesToWrite = 3;
+ ch = UNI_REPLACEMENT_CHAR;
+ result = sourceIllegal;
+ }
+
+ target += bytesToWrite;
+ if (target > targetEnd) {
+ --source; /* Back up source pointer! */
+ target -= bytesToWrite; result = targetExhausted; break;
+ }
+ switch (bytesToWrite) { /* note: everything falls through. */
+ case 4: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;
+ case 3: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;
+ case 2: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;
+ case 1: *--target = (UTF8) (ch | firstByteMark[bytesToWrite]);
+ }
+ target += bytesToWrite;
+ }
+*sourceStart = source;
+*targetStart = target;
+return result;
+}
+
+/* --------------------------------------------------------------------- */
+
+ConversionResult ConvertUTF8toUTF32 (const UTF8** sourceStart, const UTF8* sourceEnd,
+ UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags) {
+ ConversionResult result = conversionOK;
+ const UTF8* source = *sourceStart;
+ UTF32* target = *targetStart;
+ while (source < sourceEnd) {
+ UTF32 ch = 0;
+ unsigned short extraBytesToRead = trailingBytesForUTF8[*source];
+ if (source + extraBytesToRead >= sourceEnd) {
+ result = sourceExhausted; break;
+ }
+ /* Do this check whether lenient or strict */
+ if (! isLegalUTF8(source, extraBytesToRead+1)) {
+ result = sourceIllegal;
+ break;
+ }
+ /*
+ * The cases all fall through. See "Note A" below.
+ */
+ switch (extraBytesToRead) {
+ case 5: ch += *source++; ch <<= 6;
+ case 4: ch += *source++; ch <<= 6;
+ case 3: ch += *source++; ch <<= 6;
+ case 2: ch += *source++; ch <<= 6;
+ case 1: ch += *source++; ch <<= 6;
+ case 0: ch += *source++;
+ }
+ ch -= offsetsFromUTF8[extraBytesToRead];
+
+ if (target >= targetEnd) {
+ source -= (extraBytesToRead+1); /* Back up the source pointer! */
+ result = targetExhausted; break;
+ }
+ if (ch <= UNI_MAX_LEGAL_UTF32) {
+ /*
+ * UTF-16 surrogate values are illegal in UTF-32, and anything
+ * over Plane 17 (> 0x10FFFF) is illegal.
+ */
+ if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) {
+ if (flags == strictConversion) {
+ source -= (extraBytesToRead+1); /* return to the illegal value itself */
+ result = sourceIllegal;
+ break;
+ } else {
+ *target++ = UNI_REPLACEMENT_CHAR;
+ }
+ } else {
+ *target++ = ch;
+ }
+ } else { /* i.e., ch > UNI_MAX_LEGAL_UTF32 */
+ result = sourceIllegal;
+ *target++ = UNI_REPLACEMENT_CHAR;
+ }
+ }
+ *sourceStart = source;
+ *targetStart = target;
+ return result;
+}
+
+/* ---------------------------------------------------------------------
+
+Note A.
+The fall-through switches in UTF-8 reading code save a
+temp variable, some decrements & conditionals. The switches
+are equivalent to the following loop:
+{
+ int tmpBytesToRead = extraBytesToRead+1;
+ do {
+ ch += *source++;
+ --tmpBytesToRead;
+ if (tmpBytesToRead) ch <<= 6;
+ } while (tmpBytesToRead > 0);
+}
+In UTF-8 writing code, the switches on "bytesToWrite" are
+similarly unrolled loops.
+
+--------------------------------------------------------------------- */
diff --git a/3rdParty/Breakpad/src/common/convert_UTF.h b/3rdParty/Breakpad/src/common/convert_UTF.h
new file mode 100644
index 0000000..b1556de
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/convert_UTF.h
@@ -0,0 +1,143 @@
+/*
+ * Copyright 2001-2004 Unicode, Inc.
+ *
+ * Disclaimer
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+/* ---------------------------------------------------------------------
+
+Conversions between UTF32, UTF-16, and UTF-8. Header file.
+
+Several funtions are included here, forming a complete set of
+conversions between the three formats. UTF-7 is not included
+here, but is handled in a separate source file.
+
+Each of these routines takes pointers to input buffers and output
+buffers. The input buffers are const.
+
+Each routine converts the text between *sourceStart and sourceEnd,
+putting the result into the buffer between *targetStart and
+targetEnd. Note: the end pointers are *after* the last item: e.g.
+*(sourceEnd - 1) is the last item.
+
+The return result indicates whether the conversion was successful,
+and if not, whether the problem was in the source or target buffers.
+(Only the first encountered problem is indicated.)
+
+After the conversion, *sourceStart and *targetStart are both
+updated to point to the end of last text successfully converted in
+the respective buffers.
+
+Input parameters:
+sourceStart - pointer to a pointer to the source buffer.
+The contents of this are modified on return so that
+it points at the next thing to be converted.
+targetStart - similarly, pointer to pointer to the target buffer.
+sourceEnd, targetEnd - respectively pointers to the ends of the
+two buffers, for overflow checking only.
+
+These conversion functions take a ConversionFlags argument. When this
+flag is set to strict, both irregular sequences and isolated surrogates
+will cause an error. When the flag is set to lenient, both irregular
+sequences and isolated surrogates are converted.
+
+Whether the flag is strict or lenient, all illegal sequences will cause
+an error return. This includes sequences such as: <F4 90 80 80>, <C0 80>,
+or <A0> in UTF-8, and values above 0x10FFFF in UTF-32. Conformant code
+must check for illegal sequences.
+
+When the flag is set to lenient, characters over 0x10FFFF are converted
+to the replacement character; otherwise (when the flag is set to strict)
+they constitute an error.
+
+Output parameters:
+The value "sourceIllegal" is returned from some routines if the input
+sequence is malformed. When "sourceIllegal" is returned, the source
+value will point to the illegal value that caused the problem. E.g.,
+in UTF-8 when a sequence is malformed, it points to the start of the
+malformed sequence.
+
+Author: Mark E. Davis, 1994.
+Rev History: Rick McGowan, fixes & updates May 2001.
+Fixes & updates, Sept 2001.
+
+------------------------------------------------------------------------ */
+
+/* ---------------------------------------------------------------------
+The following 4 definitions are compiler-specific.
+The C standard does not guarantee that wchar_t has at least
+16 bits, so wchar_t is no less portable than unsigned short!
+All should be unsigned values to avoid sign extension during
+bit mask & shift operations.
+------------------------------------------------------------------------ */
+
+typedef unsigned long UTF32; /* at least 32 bits */
+typedef unsigned short UTF16; /* at least 16 bits */
+typedef unsigned char UTF8; /* typically 8 bits */
+typedef unsigned char Boolean; /* 0 or 1 */
+
+/* Some fundamental constants */
+#define UNI_REPLACEMENT_CHAR (UTF32)0x0000FFFD
+#define UNI_MAX_BMP (UTF32)0x0000FFFF
+#define UNI_MAX_UTF16 (UTF32)0x0010FFFF
+#define UNI_MAX_UTF32 (UTF32)0x7FFFFFFF
+#define UNI_MAX_LEGAL_UTF32 (UTF32)0x0010FFFF
+
+typedef enum {
+ conversionOK, /* conversion successful */
+ sourceExhausted, /* partial character in source, but hit end */
+ targetExhausted, /* insuff. room in target for conversion */
+ sourceIllegal /* source sequence is illegal/malformed */
+} ConversionResult;
+
+typedef enum {
+ strictConversion = 0,
+ lenientConversion
+} ConversionFlags;
+
+/* This is for C++ and does no harm in C */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+ConversionResult ConvertUTF8toUTF16 (const UTF8** sourceStart, const UTF8* sourceEnd,
+ UTF16** targetStart, UTF16* targetEnd, ConversionFlags flags);
+
+ConversionResult ConvertUTF16toUTF8 (const UTF16** sourceStart, const UTF16* sourceEnd,
+ UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags);
+
+ConversionResult ConvertUTF8toUTF32 (const UTF8** sourceStart, const UTF8* sourceEnd,
+ UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags);
+
+ConversionResult ConvertUTF32toUTF8 (const UTF32** sourceStart, const UTF32* sourceEnd,
+ UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags);
+
+ConversionResult ConvertUTF16toUTF32 (const UTF16** sourceStart, const UTF16* sourceEnd,
+ UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags);
+
+ConversionResult ConvertUTF32toUTF16 (const UTF32** sourceStart, const UTF32* sourceEnd,
+ UTF16** targetStart, UTF16* targetEnd, ConversionFlags flags);
+
+Boolean isLegalUTF8Sequence(const UTF8 *source, const UTF8 *sourceEnd);
+
+#ifdef __cplusplus
+}
+#endif
+
+/* --------------------------------------------------------------------- */
diff --git a/3rdParty/Breakpad/src/common/dwarf/bytereader-inl.h b/3rdParty/Breakpad/src/common/dwarf/bytereader-inl.h
new file mode 100644
index 0000000..3c16708
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf/bytereader-inl.h
@@ -0,0 +1,175 @@
+// Copyright 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.
+
+#ifndef UTIL_DEBUGINFO_BYTEREADER_INL_H__
+#define UTIL_DEBUGINFO_BYTEREADER_INL_H__
+
+#include "common/dwarf/bytereader.h"
+
+#include <assert.h>
+
+namespace dwarf2reader {
+
+inline uint8 ByteReader::ReadOneByte(const char* 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);
+ const uint16 buffer0 = buffer[0];
+ const uint16 buffer1 = buffer[1];
+ if (endian_ == ENDIANNESS_LITTLE) {
+ return buffer0 | buffer1 << 8;
+ } else {
+ return buffer1 | buffer0 << 8;
+ }
+}
+
+inline uint64 ByteReader::ReadFourBytes(const char* signed_buffer) const {
+ const unsigned char *buffer
+ = reinterpret_cast<const unsigned char *>(signed_buffer);
+ const uint32 buffer0 = buffer[0];
+ const uint32 buffer1 = buffer[1];
+ const uint32 buffer2 = buffer[2];
+ const uint32 buffer3 = buffer[3];
+ if (endian_ == ENDIANNESS_LITTLE) {
+ return buffer0 | buffer1 << 8 | buffer2 << 16 | buffer3 << 24;
+ } else {
+ return buffer3 | buffer2 << 8 | buffer1 << 16 | buffer0 << 24;
+ }
+}
+
+inline uint64 ByteReader::ReadEightBytes(const char* signed_buffer) const {
+ const unsigned char *buffer
+ = reinterpret_cast<const unsigned char *>(signed_buffer);
+ const uint64 buffer0 = buffer[0];
+ const uint64 buffer1 = buffer[1];
+ const uint64 buffer2 = buffer[2];
+ const uint64 buffer3 = buffer[3];
+ const uint64 buffer4 = buffer[4];
+ const uint64 buffer5 = buffer[5];
+ const uint64 buffer6 = buffer[6];
+ const uint64 buffer7 = buffer[7];
+ if (endian_ == ENDIANNESS_LITTLE) {
+ return buffer0 | buffer1 << 8 | buffer2 << 16 | buffer3 << 24 |
+ buffer4 << 32 | buffer5 << 40 | buffer6 << 48 | buffer7 << 56;
+ } else {
+ return buffer7 | buffer6 << 8 | buffer5 << 16 | buffer4 << 24 |
+ buffer3 << 32 | buffer2 << 40 | buffer1 << 48 | buffer0 << 56;
+ }
+}
+
+// Read an unsigned LEB128 number. Each byte contains 7 bits of
+// information, plus one bit saying whether the number continues or
+// not.
+
+inline uint64 ByteReader::ReadUnsignedLEB128(const char* buffer,
+ size_t* len) const {
+ uint64 result = 0;
+ size_t num_read = 0;
+ unsigned int shift = 0;
+ unsigned char byte;
+
+ do {
+ byte = *buffer++;
+ num_read++;
+
+ result |= (static_cast<uint64>(byte & 0x7f)) << shift;
+
+ shift += 7;
+
+ } while (byte & 0x80);
+
+ *len = num_read;
+
+ return result;
+}
+
+// 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,
+ size_t* len) const {
+ int64 result = 0;
+ unsigned int shift = 0;
+ size_t num_read = 0;
+ unsigned char byte;
+
+ do {
+ byte = *buffer++;
+ num_read++;
+ result |= (static_cast<uint64>(byte & 0x7f) << shift);
+ shift += 7;
+ } while (byte & 0x80);
+
+ if ((shift < 8 * sizeof (result)) && (byte & 0x40))
+ result |= -((static_cast<int64>(1)) << shift);
+ *len = num_read;
+ return result;
+}
+
+inline uint64 ByteReader::ReadOffset(const char* buffer) const {
+ assert(this->offset_reader_);
+ return (this->*offset_reader_)(buffer);
+}
+
+inline uint64 ByteReader::ReadAddress(const char* buffer) const {
+ assert(this->address_reader_);
+ return (this->*address_reader_)(buffer);
+}
+
+inline void ByteReader::SetCFIDataBase(uint64 section_base,
+ const char *buffer_base) {
+ section_base_ = section_base;
+ buffer_base_ = buffer_base;
+ have_section_base_ = true;
+}
+
+inline void ByteReader::SetTextBase(uint64 text_base) {
+ text_base_ = text_base;
+ have_text_base_ = true;
+}
+
+inline void ByteReader::SetDataBase(uint64 data_base) {
+ data_base_ = data_base;
+ have_data_base_ = true;
+}
+
+inline void ByteReader::SetFunctionBase(uint64 function_base) {
+ function_base_ = function_base;
+ have_function_base_ = true;
+}
+
+inline void ByteReader::ClearFunctionBase() {
+ have_function_base_ = false;
+}
+
+} // namespace dwarf2reader
+
+#endif // UTIL_DEBUGINFO_BYTEREADER_INL_H__
diff --git a/3rdParty/Breakpad/src/common/dwarf/bytereader.cc b/3rdParty/Breakpad/src/common/dwarf/bytereader.cc
new file mode 100644
index 0000000..6802026
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf/bytereader.cc
@@ -0,0 +1,245 @@
+// 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 <assert.h>
+#include <stdlib.h>
+
+#include "common/dwarf/bytereader-inl.h"
+#include "common/dwarf/bytereader.h"
+
+namespace dwarf2reader {
+
+ByteReader::ByteReader(enum Endianness endian)
+ :offset_reader_(NULL), address_reader_(NULL), endian_(endian),
+ address_size_(0), offset_size_(0),
+ have_section_base_(), have_text_base_(), have_data_base_(),
+ have_function_base_() { }
+
+ByteReader::~ByteReader() { }
+
+void ByteReader::SetOffsetSize(uint8 size) {
+ offset_size_ = size;
+ assert(size == 4 || size == 8);
+ if (size == 4) {
+ this->offset_reader_ = &ByteReader::ReadFourBytes;
+ } else {
+ this->offset_reader_ = &ByteReader::ReadEightBytes;
+ }
+}
+
+void ByteReader::SetAddressSize(uint8 size) {
+ address_size_ = size;
+ assert(size == 4 || size == 8);
+ if (size == 4) {
+ this->address_reader_ = &ByteReader::ReadFourBytes;
+ } else {
+ this->address_reader_ = &ByteReader::ReadEightBytes;
+ }
+}
+
+uint64 ByteReader::ReadInitialLength(const char* start, size_t* len) {
+ const uint64 initial_length = ReadFourBytes(start);
+ start += 4;
+
+ // In DWARF2/3, if the initial length is all 1 bits, then the offset
+ // size is 8 and we need to read the next 8 bytes for the real length.
+ if (initial_length == 0xffffffff) {
+ SetOffsetSize(8);
+ *len = 12;
+ return ReadOffset(start);
+ } else {
+ SetOffsetSize(4);
+ *len = 4;
+ }
+ return initial_length;
+}
+
+bool ByteReader::ValidEncoding(DwarfPointerEncoding encoding) const {
+ if (encoding == DW_EH_PE_omit) return true;
+ if (encoding == DW_EH_PE_aligned) return true;
+ if ((encoding & 0x7) > DW_EH_PE_udata8)
+ return false;
+ if ((encoding & 0x70) > DW_EH_PE_funcrel)
+ return false;
+ return true;
+}
+
+bool ByteReader::UsableEncoding(DwarfPointerEncoding encoding) const {
+ switch (encoding & 0x70) {
+ case DW_EH_PE_absptr: return true;
+ case DW_EH_PE_pcrel: return have_section_base_;
+ case DW_EH_PE_textrel: return have_text_base_;
+ case DW_EH_PE_datarel: return have_data_base_;
+ case DW_EH_PE_funcrel: return have_function_base_;
+ default: return false;
+ }
+}
+
+uint64 ByteReader::ReadEncodedPointer(const char *buffer,
+ DwarfPointerEncoding encoding,
+ size_t *len) const {
+ // UsableEncoding doesn't approve of DW_EH_PE_omit, so we shouldn't
+ // see it here.
+ assert(encoding != DW_EH_PE_omit);
+
+ // The Linux Standards Base 4.0 does not make this clear, but the
+ // GNU tools (gcc/unwind-pe.h; readelf/dwarf.c; gdb/dwarf2-frame.c)
+ // agree that aligned pointers are always absolute, machine-sized,
+ // machine-signed pointers.
+ if (encoding == DW_EH_PE_aligned) {
+ assert(have_section_base_);
+
+ // We don't need to align BUFFER in *our* address space. Rather, we
+ // need to find the next position in our buffer that would be aligned
+ // when the .eh_frame section the buffer contains is loaded into the
+ // program's memory. So align assuming that buffer_base_ gets loaded at
+ // address section_base_, where section_base_ itself may or may not be
+ // aligned.
+
+ // First, find the offset to START from the closest prior aligned
+ // address.
+ uint64 skew = section_base_ & (AddressSize() - 1);
+ // Now find the offset from that aligned address to buffer.
+ uint64 offset = skew + (buffer - buffer_base_);
+ // 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);
+ // Finally, store the length and actually fetch the pointer.
+ *len = aligned_buffer - buffer + AddressSize();
+ return ReadAddress(aligned_buffer);
+ }
+
+ // Extract the value first, ignoring whether it's a pointer or an
+ // offset relative to some base.
+ uint64 offset;
+ switch (encoding & 0x0f) {
+ case DW_EH_PE_absptr:
+ // DW_EH_PE_absptr is weird, as it is used as a meaningful value for
+ // both the high and low nybble of encoding bytes. When it appears in
+ // the high nybble, it means that the pointer is absolute, not an
+ // offset from some base address. When it appears in the low nybble,
+ // as here, it means that the pointer is stored as a normal
+ // machine-sized and machine-signed address. A low nybble of
+ // DW_EH_PE_absptr does not imply that the pointer is absolute; it is
+ // correct for us to treat the value as an offset from a base address
+ // if the upper nybble is not DW_EH_PE_absptr.
+ offset = ReadAddress(buffer);
+ *len = AddressSize();
+ break;
+
+ case DW_EH_PE_uleb128:
+ offset = ReadUnsignedLEB128(buffer, len);
+ break;
+
+ case DW_EH_PE_udata2:
+ offset = ReadTwoBytes(buffer);
+ *len = 2;
+ break;
+
+ case DW_EH_PE_udata4:
+ offset = ReadFourBytes(buffer);
+ *len = 4;
+ break;
+
+ case DW_EH_PE_udata8:
+ offset = ReadEightBytes(buffer);
+ *len = 8;
+ break;
+
+ case DW_EH_PE_sleb128:
+ offset = ReadSignedLEB128(buffer, len);
+ break;
+
+ case DW_EH_PE_sdata2:
+ offset = ReadTwoBytes(buffer);
+ // Sign-extend from 16 bits.
+ offset = (offset ^ 0x8000) - 0x8000;
+ *len = 2;
+ break;
+
+ case DW_EH_PE_sdata4:
+ offset = ReadFourBytes(buffer);
+ // Sign-extend from 32 bits.
+ offset = (offset ^ 0x80000000ULL) - 0x80000000ULL;
+ *len = 4;
+ break;
+
+ case DW_EH_PE_sdata8:
+ // No need to sign-extend; this is the full width of our type.
+ offset = ReadEightBytes(buffer);
+ *len = 8;
+ break;
+
+ default:
+ abort();
+ }
+
+ // Find the appropriate base address.
+ uint64 base;
+ switch (encoding & 0x70) {
+ case DW_EH_PE_absptr:
+ base = 0;
+ break;
+
+ case DW_EH_PE_pcrel:
+ assert(have_section_base_);
+ base = section_base_ + (buffer - buffer_base_);
+ break;
+
+ case DW_EH_PE_textrel:
+ assert(have_text_base_);
+ base = text_base_;
+ break;
+
+ case DW_EH_PE_datarel:
+ assert(have_data_base_);
+ base = data_base_;
+ break;
+
+ case DW_EH_PE_funcrel:
+ assert(have_function_base_);
+ base = function_base_;
+ break;
+
+ default:
+ abort();
+ }
+
+ uint64 pointer = base + offset;
+
+ // Remove inappropriate upper bits.
+ if (AddressSize() == 4)
+ pointer = pointer & 0xffffffff;
+ else
+ assert(AddressSize() == sizeof(uint64));
+
+ return pointer;
+}
+
+} // namespace dwarf2reader
diff --git a/3rdParty/Breakpad/src/common/dwarf/bytereader.h b/3rdParty/Breakpad/src/common/dwarf/bytereader.h
new file mode 100644
index 0000000..e389427
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf/bytereader.h
@@ -0,0 +1,310 @@
+// -*- 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.
+
+#ifndef COMMON_DWARF_BYTEREADER_H__
+#define COMMON_DWARF_BYTEREADER_H__
+
+#include <string>
+#include "common/dwarf/types.h"
+#include "common/dwarf/dwarf2enums.h"
+
+namespace dwarf2reader {
+
+// We can't use the obvious name of LITTLE_ENDIAN and BIG_ENDIAN
+// because it conflicts with a macro
+enum Endianness {
+ ENDIANNESS_BIG,
+ ENDIANNESS_LITTLE
+};
+
+// A ByteReader knows how to read single- and multi-byte values of
+// various endiannesses, sizes, and encodings, as used in DWARF
+// debugging information and Linux C++ exception handling data.
+class ByteReader {
+ public:
+ // Construct a ByteReader capable of reading one-, two-, four-, and
+ // eight-byte values according to ENDIANNESS, absolute machine-sized
+ // addresses, DWARF-style "initial length" values, signed and
+ // unsigned LEB128 numbers, and Linux C++ exception handling data's
+ // encoded pointers.
+ explicit ByteReader(enum Endianness endianness);
+ virtual ~ByteReader();
+
+ // Read a single byte from BUFFER and return it as an unsigned 8 bit
+ // number.
+ uint8 ReadOneByte(const char* 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;
+
+ // 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;
+
+ // 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;
+
+ // Read an unsigned LEB128 (Little Endian Base 128) number from
+ // BUFFER and return it as an unsigned 64 bit integer. Set LEN to
+ // the number of bytes read.
+ //
+ // 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.
+ //
+ // 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;
+
+ // Read a signed LEB128 number from BUFFER and return it as an
+ // signed 64 bit integer. Set LEN to the number of bytes read.
+ //
+ // 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 in two's
+ // complement.
+ //
+ // - 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.
+ int64 ReadSignedLEB128(const char* 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
+ // bytes in length from 1 to 255, but we only support 32- and 64-bit
+ // addresses at the moment.) You must call this before using the
+ // ReadAddress member function.
+ //
+ // For data in a .debug_info section, or something that .debug_info
+ // refers to like line number or macro data, the compilation unit
+ // header's address_size field indicates the address size to use. Call
+ // frame information doesn't indicate its address size (a shortcoming of
+ // the spec); you must supply the appropriate size based on the
+ // architecture of the target machine.
+ void SetAddressSize(uint8 size);
+
+ // Return the current address size, in bytes. This is either 4,
+ // indicating 32-bit addresses, or 8, indicating 64-bit addresses.
+ uint8 AddressSize() const { return address_size_; }
+
+ // 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;
+
+ // DWARF actually defines two slightly different formats: 32-bit DWARF
+ // and 64-bit DWARF. This is *not* related to the size of registers or
+ // addresses on the target machine; it refers only to the size of section
+ // offsets and data lengths appearing in the DWARF data. One only needs
+ // 64-bit DWARF when the debugging data itself is larger than 4GiB.
+ // 32-bit DWARF can handle x86_64 or PPC64 code just fine, unless the
+ // debugging data itself is very large.
+ //
+ // DWARF information identifies itself as 32-bit or 64-bit DWARF: each
+ // compilation unit and call frame information entry begins with an
+ // "initial length" field, which, in addition to giving the length of the
+ // data, also indicates the size of section offsets and lengths appearing
+ // in that data. The ReadInitialLength member function, below, reads an
+ // initial length and sets the ByteReader's offset size as a side effect.
+ // Thus, in the normal process of reading DWARF data, the appropriate
+ // offset size is set automatically. So, you should only need to call
+ // SetOffsetSize if you are using the same ByteReader to jump from the
+ // midst of one block of DWARF data into another.
+
+ // Read a DWARF "initial length" field from START, and return it as
+ // an unsigned 64 bit integer, respecting this ByteReader's
+ // endianness. Set *LEN to the length of the initial length in
+ // bytes, either four or twelve. As a side effect, set this
+ // ByteReader's offset size to either 4 (if we see a 32-bit DWARF
+ // initial length) or 8 (if we see a 64-bit DWARF initial length).
+ //
+ // A DWARF initial length is either:
+ //
+ // - a byte count stored as an unsigned 32-bit value less than
+ // 0xffffff00, indicating that the data whose length is being
+ // measured uses the 32-bit DWARF format, or
+ //
+ // - 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);
+
+ // 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;
+
+ // Return the current offset size, in bytes.
+ // A return value of 4 indicates that we are reading 32-bit DWARF.
+ // A return value of 8 indicates that we are reading 64-bit DWARF.
+ uint8 OffsetSize() const { return offset_size_; }
+
+ // Indicate that section offsets and lengths are SIZE bytes long. SIZE
+ // must be either 4 (meaning 32-bit DWARF) or 8 (meaning 64-bit DWARF).
+ // Usually, you should not call this function yourself; instead, let a
+ // call to ReadInitialLength establish the data's offset size
+ // automatically.
+ void SetOffsetSize(uint8 size);
+
+ // The Linux C++ ABI uses a variant of DWARF call frame information
+ // for exception handling. This data is included in the program's
+ // address space as the ".eh_frame" section, and intepreted at
+ // runtime to walk the stack, find exception handlers, and run
+ // cleanup code. The format is mostly the same as DWARF CFI, with
+ // some adjustments made to provide the additional
+ // exception-handling data, and to make the data easier to work with
+ // in memory --- for example, to allow it to be placed in read-only
+ // memory even when describing position-independent code.
+ //
+ // In particular, exception handling data can select a number of
+ // different encodings for pointers that appear in the data, as
+ // described by the DwarfPointerEncoding enum. There are actually
+ // four axes(!) to the encoding:
+ //
+ // - The pointer size: pointers can be 2, 4, or 8 bytes long, or use
+ // the DWARF LEB128 encoding.
+ //
+ // - The pointer's signedness: pointers can be signed or unsigned.
+ //
+ // - The pointer's base address: the data stored in the exception
+ // handling data can be the actual address (that is, an absolute
+ // pointer), or relative to one of a number of different base
+ // addreses --- including that of the encoded pointer itself, for
+ // a form of "pc-relative" addressing.
+ //
+ // - The pointer may be indirect: it may be the address where the
+ // true pointer is stored. (This is used to refer to things via
+ // global offset table entries, program linkage table entries, or
+ // other tricks used in position-independent code.)
+ //
+ // There are also two options that fall outside that matrix
+ // altogether: the pointer may be omitted, or it may have padding to
+ // align it on an appropriate address boundary. (That last option
+ // may seem like it should be just another axis, but it is not.)
+
+ // Indicate that the exception handling data is loaded starting at
+ // SECTION_BASE, and that the start of its buffer in our own memory
+ // 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);
+
+ // Indicate that the base address of the program's ".text" section
+ // is TEXT_BASE. We need this to resolve DW_EH_PE_textrel pointers.
+ void SetTextBase(uint64 text_base);
+
+ // Indicate that the base address for DW_EH_PE_datarel pointers is
+ // DATA_BASE. The proper value depends on the ABI; it is usually the
+ // address of the global offset table, held in a designated register in
+ // position-independent code. You will need to look at the startup code
+ // for the target system to be sure. I tried; my eyes bled.
+ void SetDataBase(uint64 data_base);
+
+ // Indicate that the base address for the FDE we are processing is
+ // FUNCTION_BASE. This is the start address of DW_EH_PE_funcrel
+ // pointers. (This encoding does not seem to be used by the GNU
+ // toolchain.)
+ void SetFunctionBase(uint64 function_base);
+
+ // Indicate that we are no longer processing any FDE, so any use of
+ // a DW_EH_PE_funcrel encoding is an error.
+ void ClearFunctionBase();
+
+ // Return true if ENCODING is a valid pointer encoding.
+ bool ValidEncoding(DwarfPointerEncoding encoding) const;
+
+ // Return true if we have all the information we need to read a
+ // pointer that uses ENCODING. This checks that the appropriate
+ // SetFooBase function for ENCODING has been called.
+ bool UsableEncoding(DwarfPointerEncoding encoding) const;
+
+ // Read an encoded pointer from BUFFER using ENCODING; return the
+ // absolute address it represents, and set *LEN to the pointer's
+ // length in bytes, including any padding for aligned pointers.
+ //
+ // This function calls 'abort' if ENCODING is invalid or refers to a
+ // 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,
+ size_t *len) const;
+
+ private:
+
+ // Function pointer type for our address and offset readers.
+ typedef uint64 (ByteReader::*AddressReader)(const char*) 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,
+ // generally depending on the amount of DWARF2/3 info present.
+ // This function pointer gets set by SetOffsetSize.
+ AddressReader offset_reader_;
+
+ // Read an address from BUFFER and return it as an unsigned 64 bit
+ // integer. DWARF2/3 allow addresses to be any size from 0-255
+ // bytes currently. Internally we support 4 and 8 byte addresses,
+ // and will CHECK on anything else.
+ // This function pointer gets set by SetAddressSize.
+ AddressReader address_reader_;
+
+ Endianness endian_;
+ uint8 address_size_;
+ uint8 offset_size_;
+
+ // Base addresses for Linux C++ exception handling data's encoded pointers.
+ 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_;
+};
+
+} // namespace dwarf2reader
+
+#endif // COMMON_DWARF_BYTEREADER_H__
diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.cc b/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.cc
new file mode 100644
index 0000000..c741d69
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.cc
@@ -0,0 +1,199 @@
+// 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>
+
+// dwarf2diehandler.cc: Implement the dwarf2reader::DieDispatcher class.
+// See dwarf2diehandler.h for details.
+
+#include <assert.h>
+
+#include <string>
+
+#include "common/dwarf/dwarf2diehandler.h"
+#include "common/using_std_string.h"
+
+namespace dwarf2reader {
+
+DIEDispatcher::~DIEDispatcher() {
+ while (!die_handlers_.empty()) {
+ HandlerStack &entry = die_handlers_.top();
+ if (entry.handler_ != root_handler_)
+ delete entry.handler_;
+ die_handlers_.pop();
+ }
+}
+
+bool DIEDispatcher::StartCompilationUnit(uint64 offset, uint8 address_size,
+ uint8 offset_size, uint64 cu_length,
+ uint8 dwarf_version) {
+ return root_handler_->StartCompilationUnit(offset, address_size,
+ offset_size, cu_length,
+ dwarf_version);
+}
+
+bool DIEDispatcher::StartDIE(uint64 offset, enum DwarfTag tag,
+ const AttributeList& attrs) {
+ // The stack entry for the parent of this DIE, if there is one.
+ HandlerStack *parent = die_handlers_.empty() ? NULL : &die_handlers_.top();
+
+ // Does this call indicate that we're done receiving the parent's
+ // attributes' values? If so, call its EndAttributes member function.
+ if (parent && parent->handler_ && !parent->reported_attributes_end_) {
+ parent->reported_attributes_end_ = true;
+ if (!parent->handler_->EndAttributes()) {
+ // Finish off this handler now. and edit *PARENT to indicate that
+ // we don't want to visit any of the children.
+ parent->handler_->Finish();
+ if (parent->handler_ != root_handler_)
+ delete parent->handler_;
+ parent->handler_ = NULL;
+ return false;
+ }
+ }
+
+ // Find a handler for this DIE.
+ DIEHandler *handler;
+ if (parent) {
+ if (parent->handler_)
+ // Ask the parent to find a handler.
+ handler = parent->handler_->FindChildHandler(offset, tag, attrs);
+ else
+ // No parent handler means we're not interested in any of our
+ // children.
+ handler = NULL;
+ } else {
+ // This is the root DIE. For a non-root DIE, the parent's handler
+ // 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))
+ handler = root_handler_;
+ else
+ handler = NULL;
+ }
+
+ // Push a handler stack entry for this new handler. As an
+ // optimization, we don't push NULL-handler entries on top of other
+ // NULL-handler entries; we just let the oldest such entry stand for
+ // the whole subtree.
+ if (handler || !parent || parent->handler_) {
+ HandlerStack entry;
+ entry.offset_ = offset;
+ entry.handler_ = handler;
+ entry.reported_attributes_end_ = false;
+ die_handlers_.push(entry);
+ }
+
+ return handler != NULL;
+}
+
+void DIEDispatcher::EndDIE(uint64 offset) {
+ assert(!die_handlers_.empty());
+ HandlerStack *entry = &die_handlers_.top();
+ if (entry->handler_) {
+ // This entry had better be the handler for this DIE.
+ assert(entry->offset_ == offset);
+ // If a DIE has no children, this EndDIE call indicates that we're
+ // done receiving its attributes' values.
+ if (!entry->reported_attributes_end_)
+ entry->handler_->EndAttributes(); // Ignore return value: no children.
+ entry->handler_->Finish();
+ if (entry->handler_ != root_handler_)
+ delete entry->handler_;
+ } else {
+ // If this DIE is within a tree we're ignoring, then don't pop the
+ // handler stack: that entry stands for the whole tree.
+ if (entry->offset_ != offset)
+ return;
+ }
+ die_handlers_.pop();
+}
+
+void DIEDispatcher::ProcessAttributeUnsigned(uint64 offset,
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data) {
+ HandlerStack &current = die_handlers_.top();
+ // This had better be an attribute of the DIE we were meant to handle.
+ assert(offset == current.offset_);
+ current.handler_->ProcessAttributeUnsigned(attr, form, data);
+}
+
+void DIEDispatcher::ProcessAttributeSigned(uint64 offset,
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ int64 data) {
+ HandlerStack &current = die_handlers_.top();
+ // This had better be an attribute of the DIE we were meant to handle.
+ assert(offset == current.offset_);
+ current.handler_->ProcessAttributeSigned(attr, form, data);
+}
+
+void DIEDispatcher::ProcessAttributeReference(uint64 offset,
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data) {
+ HandlerStack &current = die_handlers_.top();
+ // This had better be an attribute of the DIE we were meant to handle.
+ assert(offset == current.offset_);
+ current.handler_->ProcessAttributeReference(attr, form, data);
+}
+
+void DIEDispatcher::ProcessAttributeBuffer(uint64 offset,
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ const char* data,
+ uint64 len) {
+ HandlerStack &current = die_handlers_.top();
+ // This had better be an attribute of the DIE we were meant to handle.
+ assert(offset == current.offset_);
+ current.handler_->ProcessAttributeBuffer(attr, form, data, len);
+}
+
+void DIEDispatcher::ProcessAttributeString(uint64 offset,
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ const string& data) {
+ HandlerStack &current = die_handlers_.top();
+ // This had better be an attribute of the DIE we were meant to handle.
+ assert(offset == current.offset_);
+ current.handler_->ProcessAttributeString(attr, form, data);
+}
+
+void DIEDispatcher::ProcessAttributeSignature(uint64 offset,
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 signature) {
+ HandlerStack &current = die_handlers_.top();
+ // This had better be an attribute of the DIE we were meant to handle.
+ assert(offset == current.offset_);
+ current.handler_->ProcessAttributeSignature(attr, form, signature);
+}
+
+} // namespace dwarf2reader
diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.h b/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.h
new file mode 100644
index 0000000..12b8d3a
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.h
@@ -0,0 +1,367 @@
+// -*- 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>
+
+// dwarf2reader::CompilationUnit is a simple and direct parser for
+// DWARF data, but its handler interface is not convenient to use. In
+// particular:
+//
+// - CompilationUnit calls Dwarf2Handler's member functions to report
+// every attribute's value, regardless of what sort of DIE it is.
+// As a result, the ProcessAttributeX functions end up looking like
+// this:
+//
+// switch (parent_die_tag) {
+// case DW_TAG_x:
+// switch (attribute_name) {
+// case DW_AT_y:
+// handle attribute y of DIE type x
+// ...
+// } break;
+// ...
+// }
+//
+// In C++ it's much nicer to use virtual function dispatch to find
+// the right code for a given case than to switch on the DIE tag
+// like this.
+//
+// - Processing different kinds of DIEs requires different sets of
+// data: lexical block DIEs have start and end addresses, but struct
+// type DIEs don't. It would be nice to be able to have separate
+// handler classes for separate kinds of DIEs, each with the members
+// appropriate to its role, instead of having one handler class that
+// needs to hold data for every DIE type.
+//
+// - There should be a separate instance of the appropriate handler
+// class for each DIE, instead of a single object with tables
+// tracking all the dies in the compilation unit.
+//
+// - It's not convenient to take some action after all a DIE's
+// attributes have been seen, but before visiting any of its
+// children. The only indication you have that a DIE's attribute
+// list is complete is that you get either a StartDIE or an EndDIE
+// call.
+//
+// - It's not convenient to make use of the tree structure of the
+// DIEs. Skipping all the children of a given die requires
+// maintaining state and returning false from StartDIE until we get
+// an EndDIE call with the appropriate offset.
+//
+// This interface tries to take care of all that. (You're shocked, I'm sure.)
+//
+// Using the classes here, you provide an initial handler for the root
+// DIE of the compilation unit. Each handler receives its DIE's
+// attributes, and provides fresh handler objects for children of
+// interest, if any. The three classes are:
+//
+// - DIEHandler: the base class for your DIE-type-specific handler
+// classes.
+//
+// - RootDIEHandler: derived from DIEHandler, the base class for your
+// root DIE handler class.
+//
+// - DIEDispatcher: derived from Dwarf2Handler, an instance of this
+// invokes your DIE-type-specific handler objects.
+//
+// In detail:
+//
+// - Define handler classes specialized for the DIE types you're
+// interested in. These handler classes must inherit from
+// DIEHandler. Thus:
+//
+// class My_DW_TAG_X_Handler: public DIEHandler { ... };
+// class My_DW_TAG_Y_Handler: public DIEHandler { ... };
+//
+// DIEHandler subclasses needn't correspond exactly to single DIE
+// types, as shown here; the point is that you can have several
+// different classes appropriate to different kinds of DIEs.
+//
+// - In particular, define a handler class for the compilation
+// unit's root DIE, that inherits from RootDIEHandler:
+//
+// class My_DW_TAG_compile_unit_Handler: public RootDIEHandler { ... };
+//
+// RootDIEHandler inherits from DIEHandler, adding a few additional
+// member functions for examining the compilation unit as a whole,
+// and other quirks of rootness.
+//
+// - Then, create a DIEDispatcher instance, passing it an instance of
+// your root DIE handler class, and use that DIEDispatcher as the
+// dwarf2reader::CompilationUnit's handler:
+//
+// My_DW_TAG_compile_unit_Handler root_die_handler(...);
+// DIEDispatcher die_dispatcher(&root_die_handler);
+// CompilationUnit reader(sections, offset, bytereader, &die_dispatcher);
+//
+// Here, 'die_dispatcher' acts as a shim between 'reader' and the
+// various DIE-specific handlers you have defined.
+//
+// - When you call reader.Start(), die_dispatcher behaves as follows,
+// starting with your root die handler and the compilation unit's
+// root DIE:
+//
+// - It calls the handler's ProcessAttributeX member functions for
+// each of the DIE's attributes.
+//
+// - It calls the handler's EndAttributes member function. This
+// should return true if any of the DIE's children should be
+// visited, in which case:
+//
+// - For each of the DIE's children, die_dispatcher calls the
+// DIE's handler's FindChildHandler member function. If that
+// returns a pointer to a DIEHandler instance, then
+// die_dispatcher uses that handler to process the child, using
+// this procedure recursively. Alternatively, if
+// FindChildHandler returns NULL, die_dispatcher ignores that
+// child and its descendants.
+//
+// - When die_dispatcher has finished processing all the DIE's
+// children, it invokes the handler's Finish() member function,
+// and destroys the handler. (As a special case, it doesn't
+// destroy the root DIE handler.)
+//
+// This allows the code for handling a particular kind of DIE to be
+// gathered together in a single class, makes it easy to skip all the
+// children or individual children of a particular DIE, and provides
+// appropriate parental context for each die.
+
+#ifndef COMMON_DWARF_DWARF2DIEHANDLER_H__
+#define COMMON_DWARF_DWARF2DIEHANDLER_H__
+
+#include <stack>
+#include <string>
+
+#include "common/dwarf/types.h"
+#include "common/dwarf/dwarf2enums.h"
+#include "common/dwarf/dwarf2reader.h"
+#include "common/using_std_string.h"
+
+namespace dwarf2reader {
+
+// A base class for handlers for specific DIE types. The series of
+// calls made on a DIE handler is as follows:
+//
+// - for each attribute of the DIE:
+// - ProcessAttributeX()
+// - EndAttributes()
+// - if that returned true, then for each child:
+// - FindChildHandler()
+// - if that returns a non-NULL pointer to a new handler:
+// - recurse, with the new handler and the child die
+// - Finish()
+// - destruction
+class DIEHandler {
+ public:
+ DIEHandler() { }
+ virtual ~DIEHandler() { }
+
+ // When we visit a DIE, we first use these member functions to
+ // report the DIE's attributes and their values. These have the
+ // same restrictions as the corresponding member functions of
+ // dwarf2reader::Dwarf2Handler.
+ //
+ // Since DWARF does not specify in what order attributes must
+ // appear, avoid making decisions in these functions that would be
+ // affected by the presence of other attributes. The EndAttributes
+ // function is a more appropriate place for such work, as all the
+ // DIE's attributes have been seen at that point.
+ //
+ // The default definitions ignore the values they are passed.
+ virtual void ProcessAttributeUnsigned(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data) { }
+ virtual void ProcessAttributeSigned(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ int64 data) { }
+ virtual void ProcessAttributeReference(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data) { }
+ virtual void ProcessAttributeBuffer(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ const char* data,
+ uint64 len) { }
+ virtual void ProcessAttributeString(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ const string& data) { }
+ virtual void ProcessAttributeSignature(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 signture) { }
+
+ // Once we have reported all the DIE's attributes' values, we call
+ // this member function. If it returns false, we skip all the DIE's
+ // children. If it returns true, we call FindChildHandler on each
+ // child. If that returns a handler object, we use that to visit
+ // the child; otherwise, we skip the child.
+ //
+ // This is a good place to make decisions that depend on more than
+ // one attribute. DWARF does not specify in what order attributes
+ // must appear, so only when the EndAttributes function is called
+ // does the handler have a complete picture of the DIE's attributes.
+ //
+ // The default definition elects to ignore the DIE's children.
+ // You'll need to override this if you override FindChildHandler,
+ // but at least the default behavior isn't to pass the children to
+ // FindChildHandler, which then ignores them all.
+ virtual bool EndAttributes() { return false; }
+
+ // If EndAttributes returns true to indicate that some of the DIE's
+ // children might be of interest, then we apply this function to
+ // each of the DIE's children. If it returns a handler object, then
+ // we use that to visit the child DIE. If it returns NULL, we skip
+ // 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).
+ //
+ // The default definition skips all children.
+ virtual DIEHandler *FindChildHandler(uint64 offset, enum DwarfTag tag,
+ const AttributeList &attrs) {
+ return NULL;
+ }
+
+ // When we are done processing a DIE, we call this member function.
+ // This happens after the EndAttributes call, all FindChildHandler
+ // calls (if any), and all operations on the children themselves (if
+ // any). We call Finish on every handler --- even if EndAttributes
+ // returns false.
+ virtual void Finish() { };
+};
+
+// A subclass of DIEHandler, with additional kludges for handling the
+// compilation unit's root die.
+class RootDIEHandler: public DIEHandler {
+ public:
+ RootDIEHandler() { }
+ virtual ~RootDIEHandler() { }
+
+ // We pass the values reported via Dwarf2Handler::StartCompilationUnit
+ // to this member function, and skip the entire compilation unit if it
+ // returns false. So the root DIE handler is actually also
+ // responsible for handling the compilation unit metadata.
+ // The default definition always visits the compilation unit.
+ virtual bool StartCompilationUnit(uint64 offset, uint8 address_size,
+ uint8 offset_size, uint64 cu_length,
+ uint8 dwarf_version) { return true; }
+
+ // For the root DIE handler only, we pass the offset, tag and
+ // attributes of the compilation unit's root DIE. This is the only
+ // way the root DIE handler can find the root DIE's tag. If this
+ // function returns true, we will visit the root DIE using the usual
+ // DIEHandler methods; otherwise, we skip the entire compilation
+ // unit.
+ //
+ // The default definition elects to visit the root DIE.
+ virtual bool StartRootDIE(uint64 offset, enum DwarfTag tag,
+ const AttributeList& attrs) { return true; }
+};
+
+class DIEDispatcher: public Dwarf2Handler {
+ public:
+ // Create a Dwarf2Handler which uses ROOT_HANDLER as the handler for
+ // the compilation unit's root die, as described for the DIEHandler
+ // class.
+ DIEDispatcher(RootDIEHandler *root_handler) : root_handler_(root_handler) { }
+ // Destroying a DIEDispatcher destroys all active handler objects
+ // except the root handler.
+ ~DIEDispatcher();
+ 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);
+ void ProcessAttributeUnsigned(uint64 offset,
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data);
+ void ProcessAttributeSigned(uint64 offset,
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ int64 data);
+ void ProcessAttributeReference(uint64 offset,
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data);
+ void ProcessAttributeBuffer(uint64 offset,
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ const char* data,
+ uint64 len);
+ void ProcessAttributeString(uint64 offset,
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ const string &data);
+ void ProcessAttributeSignature(uint64 offset,
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 signature);
+ void EndDIE(uint64 offset);
+
+ private:
+
+ // The type of a handler stack entry. This includes some fields
+ // which don't really need to be on the stack --- they could just be
+ // single data members of DIEDispatcher --- but putting them here
+ // makes it easier to see that the code is correct.
+ struct HandlerStack {
+ // The offset of the DIE for this handler stack entry.
+ uint64 offset_;
+
+ // The handler object interested in this DIE's attributes and
+ // children. If NULL, we're not interested in either.
+ DIEHandler *handler_;
+
+ // Have we reported the end of this DIE's attributes to the handler?
+ bool reported_attributes_end_;
+ };
+
+ // Stack of DIE attribute handlers. At StartDIE(D), the top of the
+ // stack is the handler of D's parent, whom we may ask for a handler
+ // for D itself. At EndDIE(D), the top of the stack is D's handler.
+ // Special cases:
+ //
+ // - Before we've seen the compilation unit's root DIE, the stack is
+ // empty; we'll call root_handler_'s special member functions, and
+ // perhaps push root_handler_ on the stack to look at the root's
+ // immediate children.
+ //
+ // - When we decide to ignore a subtree, we only push an entry on
+ // the stack for the root of the tree being ignored, rather than
+ // pushing lots of stack entries with handler_ set to NULL.
+ std::stack<HandlerStack> die_handlers_;
+
+ // The root handler. We don't push it on die_handlers_ until we
+ // actually get the StartDIE call for the root.
+ RootDIEHandler *root_handler_;
+};
+
+} // namespace dwarf2reader
+#endif // COMMON_DWARF_DWARF2DIEHANDLER_H__
diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2enums.h b/3rdParty/Breakpad/src/common/dwarf/dwarf2enums.h
new file mode 100644
index 0000000..5565d66
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2enums.h
@@ -0,0 +1,650 @@
+// -*- 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.
+
+#ifndef COMMON_DWARF_DWARF2ENUMS_H__
+#define COMMON_DWARF_DWARF2ENUMS_H__
+
+namespace dwarf2reader {
+
+// These enums do not follow the google3 style only because they are
+// known universally (specs, other implementations) by the names in
+// exactly this capitalization.
+// Tag names and codes.
+enum DwarfTag {
+ DW_TAG_padding = 0x00,
+ DW_TAG_array_type = 0x01,
+ DW_TAG_class_type = 0x02,
+ DW_TAG_entry_point = 0x03,
+ DW_TAG_enumeration_type = 0x04,
+ DW_TAG_formal_parameter = 0x05,
+ DW_TAG_imported_declaration = 0x08,
+ DW_TAG_label = 0x0a,
+ DW_TAG_lexical_block = 0x0b,
+ DW_TAG_member = 0x0d,
+ DW_TAG_pointer_type = 0x0f,
+ DW_TAG_reference_type = 0x10,
+ DW_TAG_compile_unit = 0x11,
+ DW_TAG_string_type = 0x12,
+ DW_TAG_structure_type = 0x13,
+ DW_TAG_subroutine_type = 0x15,
+ DW_TAG_typedef = 0x16,
+ DW_TAG_union_type = 0x17,
+ DW_TAG_unspecified_parameters = 0x18,
+ DW_TAG_variant = 0x19,
+ DW_TAG_common_block = 0x1a,
+ DW_TAG_common_inclusion = 0x1b,
+ DW_TAG_inheritance = 0x1c,
+ DW_TAG_inlined_subroutine = 0x1d,
+ DW_TAG_module = 0x1e,
+ DW_TAG_ptr_to_member_type = 0x1f,
+ DW_TAG_set_type = 0x20,
+ DW_TAG_subrange_type = 0x21,
+ DW_TAG_with_stmt = 0x22,
+ DW_TAG_access_declaration = 0x23,
+ DW_TAG_base_type = 0x24,
+ DW_TAG_catch_block = 0x25,
+ DW_TAG_const_type = 0x26,
+ DW_TAG_constant = 0x27,
+ DW_TAG_enumerator = 0x28,
+ DW_TAG_file_type = 0x29,
+ DW_TAG_friend = 0x2a,
+ DW_TAG_namelist = 0x2b,
+ DW_TAG_namelist_item = 0x2c,
+ DW_TAG_packed_type = 0x2d,
+ DW_TAG_subprogram = 0x2e,
+ DW_TAG_template_type_param = 0x2f,
+ DW_TAG_template_value_param = 0x30,
+ DW_TAG_thrown_type = 0x31,
+ DW_TAG_try_block = 0x32,
+ DW_TAG_variant_part = 0x33,
+ DW_TAG_variable = 0x34,
+ DW_TAG_volatile_type = 0x35,
+ // DWARF 3.
+ DW_TAG_dwarf_procedure = 0x36,
+ DW_TAG_restrict_type = 0x37,
+ DW_TAG_interface_type = 0x38,
+ DW_TAG_namespace = 0x39,
+ DW_TAG_imported_module = 0x3a,
+ DW_TAG_unspecified_type = 0x3b,
+ DW_TAG_partial_unit = 0x3c,
+ DW_TAG_imported_unit = 0x3d,
+ // SGI/MIPS Extensions.
+ DW_TAG_MIPS_loop = 0x4081,
+ // HP extensions. See:
+ // ftp://ftp.hp.com/pub/lang/tools/WDB/wdb-4.0.tar.gz
+ DW_TAG_HP_array_descriptor = 0x4090,
+ // GNU extensions.
+ DW_TAG_format_label = 0x4101, // For FORTRAN 77 and Fortran 90.
+ DW_TAG_function_template = 0x4102, // For C++.
+ DW_TAG_class_template = 0x4103, // For C++.
+ DW_TAG_GNU_BINCL = 0x4104,
+ DW_TAG_GNU_EINCL = 0x4105,
+ // Extensions for UPC. See: http://upc.gwu.edu/~upc.
+ DW_TAG_upc_shared_type = 0x8765,
+ DW_TAG_upc_strict_type = 0x8766,
+ DW_TAG_upc_relaxed_type = 0x8767,
+ // PGI (STMicroelectronics) extensions. No documentation available.
+ DW_TAG_PGI_kanji_type = 0xA000,
+ DW_TAG_PGI_interface_block = 0xA020
+};
+
+
+enum DwarfHasChild {
+ DW_children_no = 0,
+ DW_children_yes = 1
+};
+
+// Form names and codes.
+enum DwarfForm {
+ DW_FORM_addr = 0x01,
+ DW_FORM_block2 = 0x03,
+ DW_FORM_block4 = 0x04,
+ DW_FORM_data2 = 0x05,
+ DW_FORM_data4 = 0x06,
+ DW_FORM_data8 = 0x07,
+ DW_FORM_string = 0x08,
+ DW_FORM_block = 0x09,
+ DW_FORM_block1 = 0x0a,
+ DW_FORM_data1 = 0x0b,
+ DW_FORM_flag = 0x0c,
+ DW_FORM_sdata = 0x0d,
+ DW_FORM_strp = 0x0e,
+ DW_FORM_udata = 0x0f,
+ DW_FORM_ref_addr = 0x10,
+ DW_FORM_ref1 = 0x11,
+ DW_FORM_ref2 = 0x12,
+ DW_FORM_ref4 = 0x13,
+ DW_FORM_ref8 = 0x14,
+ DW_FORM_ref_udata = 0x15,
+ DW_FORM_indirect = 0x16,
+
+ // Added in DWARF 4:
+ DW_FORM_sec_offset = 0x17,
+ DW_FORM_exprloc = 0x18,
+ DW_FORM_flag_present = 0x19,
+ DW_FORM_ref_sig8 = 0x20
+};
+
+// Attribute names and codes
+enum DwarfAttribute {
+ DW_AT_sibling = 0x01,
+ DW_AT_location = 0x02,
+ DW_AT_name = 0x03,
+ DW_AT_ordering = 0x09,
+ DW_AT_subscr_data = 0x0a,
+ DW_AT_byte_size = 0x0b,
+ DW_AT_bit_offset = 0x0c,
+ DW_AT_bit_size = 0x0d,
+ DW_AT_element_list = 0x0f,
+ DW_AT_stmt_list = 0x10,
+ DW_AT_low_pc = 0x11,
+ DW_AT_high_pc = 0x12,
+ DW_AT_language = 0x13,
+ DW_AT_member = 0x14,
+ DW_AT_discr = 0x15,
+ DW_AT_discr_value = 0x16,
+ DW_AT_visibility = 0x17,
+ DW_AT_import = 0x18,
+ DW_AT_string_length = 0x19,
+ DW_AT_common_reference = 0x1a,
+ DW_AT_comp_dir = 0x1b,
+ DW_AT_const_value = 0x1c,
+ DW_AT_containing_type = 0x1d,
+ DW_AT_default_value = 0x1e,
+ DW_AT_inline = 0x20,
+ DW_AT_is_optional = 0x21,
+ DW_AT_lower_bound = 0x22,
+ DW_AT_producer = 0x25,
+ DW_AT_prototyped = 0x27,
+ DW_AT_return_addr = 0x2a,
+ DW_AT_start_scope = 0x2c,
+ DW_AT_stride_size = 0x2e,
+ DW_AT_upper_bound = 0x2f,
+ DW_AT_abstract_origin = 0x31,
+ DW_AT_accessibility = 0x32,
+ DW_AT_address_class = 0x33,
+ DW_AT_artificial = 0x34,
+ DW_AT_base_types = 0x35,
+ DW_AT_calling_convention = 0x36,
+ DW_AT_count = 0x37,
+ DW_AT_data_member_location = 0x38,
+ DW_AT_decl_column = 0x39,
+ DW_AT_decl_file = 0x3a,
+ DW_AT_decl_line = 0x3b,
+ DW_AT_declaration = 0x3c,
+ DW_AT_discr_list = 0x3d,
+ DW_AT_encoding = 0x3e,
+ DW_AT_external = 0x3f,
+ DW_AT_frame_base = 0x40,
+ DW_AT_friend = 0x41,
+ DW_AT_identifier_case = 0x42,
+ DW_AT_macro_info = 0x43,
+ DW_AT_namelist_items = 0x44,
+ DW_AT_priority = 0x45,
+ DW_AT_segment = 0x46,
+ DW_AT_specification = 0x47,
+ DW_AT_static_link = 0x48,
+ DW_AT_type = 0x49,
+ DW_AT_use_location = 0x4a,
+ DW_AT_variable_parameter = 0x4b,
+ DW_AT_virtuality = 0x4c,
+ DW_AT_vtable_elem_location = 0x4d,
+ // DWARF 3 values.
+ DW_AT_allocated = 0x4e,
+ DW_AT_associated = 0x4f,
+ DW_AT_data_location = 0x50,
+ DW_AT_stride = 0x51,
+ DW_AT_entry_pc = 0x52,
+ DW_AT_use_UTF8 = 0x53,
+ DW_AT_extension = 0x54,
+ DW_AT_ranges = 0x55,
+ DW_AT_trampoline = 0x56,
+ DW_AT_call_column = 0x57,
+ DW_AT_call_file = 0x58,
+ DW_AT_call_line = 0x59,
+ // SGI/MIPS extensions.
+ DW_AT_MIPS_fde = 0x2001,
+ DW_AT_MIPS_loop_begin = 0x2002,
+ DW_AT_MIPS_tail_loop_begin = 0x2003,
+ DW_AT_MIPS_epilog_begin = 0x2004,
+ DW_AT_MIPS_loop_unroll_factor = 0x2005,
+ DW_AT_MIPS_software_pipeline_depth = 0x2006,
+ DW_AT_MIPS_linkage_name = 0x2007,
+ DW_AT_MIPS_stride = 0x2008,
+ DW_AT_MIPS_abstract_name = 0x2009,
+ DW_AT_MIPS_clone_origin = 0x200a,
+ DW_AT_MIPS_has_inlines = 0x200b,
+ // HP extensions.
+ DW_AT_HP_block_index = 0x2000,
+ DW_AT_HP_unmodifiable = 0x2001, // Same as DW_AT_MIPS_fde.
+ DW_AT_HP_actuals_stmt_list = 0x2010,
+ DW_AT_HP_proc_per_section = 0x2011,
+ DW_AT_HP_raw_data_ptr = 0x2012,
+ DW_AT_HP_pass_by_reference = 0x2013,
+ DW_AT_HP_opt_level = 0x2014,
+ DW_AT_HP_prof_version_id = 0x2015,
+ DW_AT_HP_opt_flags = 0x2016,
+ DW_AT_HP_cold_region_low_pc = 0x2017,
+ DW_AT_HP_cold_region_high_pc = 0x2018,
+ DW_AT_HP_all_variables_modifiable = 0x2019,
+ DW_AT_HP_linkage_name = 0x201a,
+ DW_AT_HP_prof_flags = 0x201b, // In comp unit of procs_info for -g.
+ // GNU extensions.
+ DW_AT_sf_names = 0x2101,
+ DW_AT_src_info = 0x2102,
+ DW_AT_mac_info = 0x2103,
+ DW_AT_src_coords = 0x2104,
+ DW_AT_body_begin = 0x2105,
+ DW_AT_body_end = 0x2106,
+ DW_AT_GNU_vector = 0x2107,
+ // VMS extensions.
+ DW_AT_VMS_rtnbeg_pd_address = 0x2201,
+ // UPC extension.
+ DW_AT_upc_threads_scaled = 0x3210,
+ // PGI (STMicroelectronics) extensions.
+ DW_AT_PGI_lbase = 0x3a00,
+ DW_AT_PGI_soffset = 0x3a01,
+ DW_AT_PGI_lstride = 0x3a02
+};
+
+
+// Line number opcodes.
+enum DwarfLineNumberOps {
+ DW_LNS_extended_op = 0,
+ DW_LNS_copy = 1,
+ DW_LNS_advance_pc = 2,
+ DW_LNS_advance_line = 3,
+ DW_LNS_set_file = 4,
+ DW_LNS_set_column = 5,
+ DW_LNS_negate_stmt = 6,
+ DW_LNS_set_basic_block = 7,
+ DW_LNS_const_add_pc = 8,
+ DW_LNS_fixed_advance_pc = 9,
+ // DWARF 3.
+ DW_LNS_set_prologue_end = 10,
+ DW_LNS_set_epilogue_begin = 11,
+ DW_LNS_set_isa = 12
+};
+
+// Line number extended opcodes.
+enum DwarfLineNumberExtendedOps {
+ DW_LNE_end_sequence = 1,
+ DW_LNE_set_address = 2,
+ DW_LNE_define_file = 3,
+ // HP extensions.
+ DW_LNE_HP_negate_is_UV_update = 0x11,
+ DW_LNE_HP_push_context = 0x12,
+ DW_LNE_HP_pop_context = 0x13,
+ DW_LNE_HP_set_file_line_column = 0x14,
+ DW_LNE_HP_set_routine_name = 0x15,
+ DW_LNE_HP_set_sequence = 0x16,
+ DW_LNE_HP_negate_post_semantics = 0x17,
+ DW_LNE_HP_negate_function_exit = 0x18,
+ DW_LNE_HP_negate_front_end_logical = 0x19,
+ DW_LNE_HP_define_proc = 0x20
+};
+
+// Type encoding names and codes
+enum DwarfEncoding {
+ DW_ATE_address =0x1,
+ DW_ATE_boolean =0x2,
+ DW_ATE_complex_float =0x3,
+ DW_ATE_float =0x4,
+ DW_ATE_signed =0x5,
+ DW_ATE_signed_char =0x6,
+ DW_ATE_unsigned =0x7,
+ DW_ATE_unsigned_char =0x8,
+ // DWARF3/DWARF3f
+ DW_ATE_imaginary_float =0x9,
+ DW_ATE_packed_decimal =0xa,
+ DW_ATE_numeric_string =0xb,
+ DW_ATE_edited =0xc,
+ DW_ATE_signed_fixed =0xd,
+ DW_ATE_unsigned_fixed =0xe,
+ DW_ATE_decimal_float =0xf,
+ DW_ATE_lo_user =0x80,
+ DW_ATE_hi_user =0xff
+};
+
+// Location virtual machine opcodes
+enum DwarfOpcode {
+ DW_OP_addr =0x03,
+ DW_OP_deref =0x06,
+ DW_OP_const1u =0x08,
+ DW_OP_const1s =0x09,
+ DW_OP_const2u =0x0a,
+ DW_OP_const2s =0x0b,
+ DW_OP_const4u =0x0c,
+ DW_OP_const4s =0x0d,
+ DW_OP_const8u =0x0e,
+ DW_OP_const8s =0x0f,
+ DW_OP_constu =0x10,
+ DW_OP_consts =0x11,
+ DW_OP_dup =0x12,
+ DW_OP_drop =0x13,
+ DW_OP_over =0x14,
+ DW_OP_pick =0x15,
+ DW_OP_swap =0x16,
+ DW_OP_rot =0x17,
+ DW_OP_xderef =0x18,
+ DW_OP_abs =0x19,
+ DW_OP_and =0x1a,
+ DW_OP_div =0x1b,
+ DW_OP_minus =0x1c,
+ DW_OP_mod =0x1d,
+ DW_OP_mul =0x1e,
+ DW_OP_neg =0x1f,
+ DW_OP_not =0x20,
+ DW_OP_or =0x21,
+ DW_OP_plus =0x22,
+ DW_OP_plus_uconst =0x23,
+ DW_OP_shl =0x24,
+ DW_OP_shr =0x25,
+ DW_OP_shra =0x26,
+ DW_OP_xor =0x27,
+ DW_OP_bra =0x28,
+ DW_OP_eq =0x29,
+ DW_OP_ge =0x2a,
+ DW_OP_gt =0x2b,
+ DW_OP_le =0x2c,
+ DW_OP_lt =0x2d,
+ DW_OP_ne =0x2e,
+ DW_OP_skip =0x2f,
+ DW_OP_lit0 =0x30,
+ DW_OP_lit1 =0x31,
+ DW_OP_lit2 =0x32,
+ DW_OP_lit3 =0x33,
+ DW_OP_lit4 =0x34,
+ DW_OP_lit5 =0x35,
+ DW_OP_lit6 =0x36,
+ DW_OP_lit7 =0x37,
+ DW_OP_lit8 =0x38,
+ DW_OP_lit9 =0x39,
+ DW_OP_lit10 =0x3a,
+ DW_OP_lit11 =0x3b,
+ DW_OP_lit12 =0x3c,
+ DW_OP_lit13 =0x3d,
+ DW_OP_lit14 =0x3e,
+ DW_OP_lit15 =0x3f,
+ DW_OP_lit16 =0x40,
+ DW_OP_lit17 =0x41,
+ DW_OP_lit18 =0x42,
+ DW_OP_lit19 =0x43,
+ DW_OP_lit20 =0x44,
+ DW_OP_lit21 =0x45,
+ DW_OP_lit22 =0x46,
+ DW_OP_lit23 =0x47,
+ DW_OP_lit24 =0x48,
+ DW_OP_lit25 =0x49,
+ DW_OP_lit26 =0x4a,
+ DW_OP_lit27 =0x4b,
+ DW_OP_lit28 =0x4c,
+ DW_OP_lit29 =0x4d,
+ DW_OP_lit30 =0x4e,
+ DW_OP_lit31 =0x4f,
+ DW_OP_reg0 =0x50,
+ DW_OP_reg1 =0x51,
+ DW_OP_reg2 =0x52,
+ DW_OP_reg3 =0x53,
+ DW_OP_reg4 =0x54,
+ DW_OP_reg5 =0x55,
+ DW_OP_reg6 =0x56,
+ DW_OP_reg7 =0x57,
+ DW_OP_reg8 =0x58,
+ DW_OP_reg9 =0x59,
+ DW_OP_reg10 =0x5a,
+ DW_OP_reg11 =0x5b,
+ DW_OP_reg12 =0x5c,
+ DW_OP_reg13 =0x5d,
+ DW_OP_reg14 =0x5e,
+ DW_OP_reg15 =0x5f,
+ DW_OP_reg16 =0x60,
+ DW_OP_reg17 =0x61,
+ DW_OP_reg18 =0x62,
+ DW_OP_reg19 =0x63,
+ DW_OP_reg20 =0x64,
+ DW_OP_reg21 =0x65,
+ DW_OP_reg22 =0x66,
+ DW_OP_reg23 =0x67,
+ DW_OP_reg24 =0x68,
+ DW_OP_reg25 =0x69,
+ DW_OP_reg26 =0x6a,
+ DW_OP_reg27 =0x6b,
+ DW_OP_reg28 =0x6c,
+ DW_OP_reg29 =0x6d,
+ DW_OP_reg30 =0x6e,
+ DW_OP_reg31 =0x6f,
+ DW_OP_breg0 =0x70,
+ DW_OP_breg1 =0x71,
+ DW_OP_breg2 =0x72,
+ DW_OP_breg3 =0x73,
+ DW_OP_breg4 =0x74,
+ DW_OP_breg5 =0x75,
+ DW_OP_breg6 =0x76,
+ DW_OP_breg7 =0x77,
+ DW_OP_breg8 =0x78,
+ DW_OP_breg9 =0x79,
+ DW_OP_breg10 =0x7a,
+ DW_OP_breg11 =0x7b,
+ DW_OP_breg12 =0x7c,
+ DW_OP_breg13 =0x7d,
+ DW_OP_breg14 =0x7e,
+ DW_OP_breg15 =0x7f,
+ DW_OP_breg16 =0x80,
+ DW_OP_breg17 =0x81,
+ DW_OP_breg18 =0x82,
+ DW_OP_breg19 =0x83,
+ DW_OP_breg20 =0x84,
+ DW_OP_breg21 =0x85,
+ DW_OP_breg22 =0x86,
+ DW_OP_breg23 =0x87,
+ DW_OP_breg24 =0x88,
+ DW_OP_breg25 =0x89,
+ DW_OP_breg26 =0x8a,
+ DW_OP_breg27 =0x8b,
+ DW_OP_breg28 =0x8c,
+ DW_OP_breg29 =0x8d,
+ DW_OP_breg30 =0x8e,
+ DW_OP_breg31 =0x8f,
+ DW_OP_regX =0x90,
+ DW_OP_fbreg =0x91,
+ DW_OP_bregX =0x92,
+ DW_OP_piece =0x93,
+ DW_OP_deref_size =0x94,
+ DW_OP_xderef_size =0x95,
+ DW_OP_nop =0x96,
+ // DWARF3/DWARF3f
+ DW_OP_push_object_address =0x97,
+ DW_OP_call2 =0x98,
+ DW_OP_call4 =0x99,
+ DW_OP_call_ref =0x9a,
+ DW_OP_form_tls_address =0x9b,
+ DW_OP_call_frame_cfa =0x9c,
+ DW_OP_bit_piece =0x9d,
+ DW_OP_lo_user =0xe0,
+ DW_OP_hi_user =0xff,
+ // GNU extensions
+ DW_OP_GNU_push_tls_address =0xe0
+};
+
+// Source languages. These are values for DW_AT_language.
+enum DwarfLanguage
+ {
+ DW_LANG_none =0x0000,
+ DW_LANG_C89 =0x0001,
+ DW_LANG_C =0x0002,
+ DW_LANG_Ada83 =0x0003,
+ DW_LANG_C_plus_plus =0x0004,
+ DW_LANG_Cobol74 =0x0005,
+ DW_LANG_Cobol85 =0x0006,
+ DW_LANG_Fortran77 =0x0007,
+ DW_LANG_Fortran90 =0x0008,
+ DW_LANG_Pascal83 =0x0009,
+ DW_LANG_Modula2 =0x000a,
+ DW_LANG_Java =0x000b,
+ DW_LANG_C99 =0x000c,
+ DW_LANG_Ada95 =0x000d,
+ DW_LANG_Fortran95 =0x000e,
+ DW_LANG_PLI =0x000f,
+ DW_LANG_ObjC =0x0010,
+ DW_LANG_ObjC_plus_plus =0x0011,
+ DW_LANG_UPC =0x0012,
+ DW_LANG_D =0x0013,
+ // Implementation-defined language code range.
+ DW_LANG_lo_user = 0x8000,
+ DW_LANG_hi_user = 0xffff,
+
+ // Extensions.
+
+ // MIPS assembly language. The GNU toolchain uses this for all
+ // assembly languages, since there's no generic DW_LANG_ value for that.
+ // See include/dwarf2.h in the binutils, gdb, or gcc source trees.
+ DW_LANG_Mips_Assembler =0x8001,
+ DW_LANG_Upc =0x8765 // Unified Parallel C
+ };
+
+// Inline codes. These are values for DW_AT_inline.
+enum DwarfInline {
+ DW_INL_not_inlined =0x0,
+ DW_INL_inlined =0x1,
+ DW_INL_declared_not_inlined =0x2,
+ DW_INL_declared_inlined =0x3
+};
+
+// Call Frame Info instructions.
+enum DwarfCFI
+ {
+ DW_CFA_advance_loc = 0x40,
+ DW_CFA_offset = 0x80,
+ DW_CFA_restore = 0xc0,
+ DW_CFA_nop = 0x00,
+ DW_CFA_set_loc = 0x01,
+ DW_CFA_advance_loc1 = 0x02,
+ DW_CFA_advance_loc2 = 0x03,
+ DW_CFA_advance_loc4 = 0x04,
+ DW_CFA_offset_extended = 0x05,
+ DW_CFA_restore_extended = 0x06,
+ DW_CFA_undefined = 0x07,
+ DW_CFA_same_value = 0x08,
+ DW_CFA_register = 0x09,
+ DW_CFA_remember_state = 0x0a,
+ DW_CFA_restore_state = 0x0b,
+ DW_CFA_def_cfa = 0x0c,
+ DW_CFA_def_cfa_register = 0x0d,
+ DW_CFA_def_cfa_offset = 0x0e,
+ DW_CFA_def_cfa_expression = 0x0f,
+ DW_CFA_expression = 0x10,
+ DW_CFA_offset_extended_sf = 0x11,
+ DW_CFA_def_cfa_sf = 0x12,
+ DW_CFA_def_cfa_offset_sf = 0x13,
+ DW_CFA_val_offset = 0x14,
+ DW_CFA_val_offset_sf = 0x15,
+ DW_CFA_val_expression = 0x16,
+
+ // Opcodes in this range are reserved for user extensions.
+ DW_CFA_lo_user = 0x1c,
+ DW_CFA_hi_user = 0x3f,
+
+ // SGI/MIPS specific.
+ DW_CFA_MIPS_advance_loc8 = 0x1d,
+
+ // GNU extensions.
+ DW_CFA_GNU_window_save = 0x2d,
+ DW_CFA_GNU_args_size = 0x2e,
+ DW_CFA_GNU_negative_offset_extended = 0x2f
+ };
+
+// Exception handling 'z' augmentation letters.
+enum DwarfZAugmentationCodes {
+ // If the CFI augmentation string begins with 'z', then the CIE and FDE
+ // have an augmentation data area just before the instructions, whose
+ // contents are determined by the subsequent augmentation letters.
+ DW_Z_augmentation_start = 'z',
+
+ // If this letter is present in a 'z' augmentation string, the CIE
+ // augmentation data includes a pointer encoding, and the FDE
+ // augmentation data includes a language-specific data area pointer,
+ // represented using that encoding.
+ DW_Z_has_LSDA = 'L',
+
+ // If this letter is present in a 'z' augmentation string, the CIE
+ // augmentation data includes a pointer encoding, followed by a pointer
+ // to a personality routine, represented using that encoding.
+ DW_Z_has_personality_routine = 'P',
+
+ // If this letter is present in a 'z' augmentation string, the CIE
+ // augmentation data includes a pointer encoding describing how the FDE's
+ // initial location, address range, and DW_CFA_set_loc operands are
+ // encoded.
+ DW_Z_has_FDE_address_encoding = 'R',
+
+ // If this letter is present in a 'z' augmentation string, then code
+ // addresses covered by FDEs that cite this CIE are signal delivery
+ // trampolines. Return addresses of frames in trampolines should not be
+ // adjusted as described in section 6.4.4 of the DWARF 3 spec.
+ DW_Z_is_signal_trampoline = 'S'
+};
+
+// Exception handling frame description pointer formats, as described
+// by the Linux Standard Base Core Specification 4.0, section 11.5,
+// DWARF Extensions.
+enum DwarfPointerEncoding
+ {
+ DW_EH_PE_absptr = 0x00,
+ DW_EH_PE_omit = 0xff,
+ DW_EH_PE_uleb128 = 0x01,
+ DW_EH_PE_udata2 = 0x02,
+ DW_EH_PE_udata4 = 0x03,
+ DW_EH_PE_udata8 = 0x04,
+ DW_EH_PE_sleb128 = 0x09,
+ DW_EH_PE_sdata2 = 0x0A,
+ DW_EH_PE_sdata4 = 0x0B,
+ DW_EH_PE_sdata8 = 0x0C,
+ DW_EH_PE_pcrel = 0x10,
+ DW_EH_PE_textrel = 0x20,
+ DW_EH_PE_datarel = 0x30,
+ DW_EH_PE_funcrel = 0x40,
+ DW_EH_PE_aligned = 0x50,
+
+ // The GNU toolchain sources define this enum value as well,
+ // simply to help classify the lower nybble values into signed and
+ // unsigned groups.
+ DW_EH_PE_signed = 0x08,
+
+ // This is not documented in LSB 4.0, but it is used in both the
+ // Linux and OS X toolchains. It can be added to any other
+ // 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
+ };
+
+} // namespace dwarf2reader
+#endif // COMMON_DWARF_DWARF2ENUMS_H__
diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.cc b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.cc
new file mode 100644
index 0000000..7c1a29d
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.cc
@@ -0,0 +1,2340 @@
+// 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.
+
+// CFI reader author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
+
+// Implementation of dwarf2reader::LineInfo, dwarf2reader::CompilationUnit,
+// and dwarf2reader::CallFrameInfo. See dwarf2reader.h for details.
+
+#include "common/dwarf/dwarf2reader.h"
+
+#include <assert.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <map>
+#include <memory>
+#include <stack>
+#include <string>
+#include <utility>
+
+#include "common/dwarf/bytereader-inl.h"
+#include "common/dwarf/bytereader.h"
+#include "common/dwarf/line_state_machine.h"
+#include "common/using_std_string.h"
+
+namespace dwarf2reader {
+
+CompilationUnit::CompilationUnit(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) {}
+
+// Read a DWARF2/3 abbreviation section.
+// Each abbrev consists of a abbreviation number, a tag, a byte
+// specifying whether the tag has children, and a list of
+// attribute/form pairs.
+// The list of forms is terminated by a 0 for the attribute, and a
+// zero for the form. The entire abbreviation section is terminated
+// by a zero for the code.
+
+void CompilationUnit::ReadAbbrevs() {
+ if (abbrevs_)
+ return;
+
+ // First get the debug_abbrev section. ".debug_abbrev" is the name
+ // recommended in the DWARF spec, and used on Linux;
+ // "__debug_abbrev" is the name used in Mac OS X Mach-O files.
+ SectionMap::const_iterator iter = sections_.find(".debug_abbrev");
+ if (iter == sections_.end())
+ iter = sections_.find("__debug_abbrev");
+ assert(iter != sections_.end());
+
+ abbrevs_ = new std::vector<Abbrev>;
+ abbrevs_->resize(1);
+
+ // 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 +
+ header_.abbrev_offset;
+ const char* abbrevptr = abbrev_start;
+#ifndef NDEBUG
+ const uint64 abbrev_length = iter->second.second - header_.abbrev_offset;
+#endif
+
+ while (1) {
+ CompilationUnit::Abbrev abbrev;
+ size_t len;
+ const uint64 number = reader_->ReadUnsignedLEB128(abbrevptr, &len);
+
+ if (number == 0)
+ break;
+ abbrev.number = number;
+ abbrevptr += len;
+
+ assert(abbrevptr < abbrev_start + abbrev_length);
+ const uint64 tag = reader_->ReadUnsignedLEB128(abbrevptr, &len);
+ abbrevptr += len;
+ abbrev.tag = static_cast<enum DwarfTag>(tag);
+
+ assert(abbrevptr < abbrev_start + abbrev_length);
+ abbrev.has_children = reader_->ReadOneByte(abbrevptr);
+ abbrevptr += 1;
+
+ assert(abbrevptr < abbrev_start + abbrev_length);
+
+ while (1) {
+ const uint64 nametemp = reader_->ReadUnsignedLEB128(abbrevptr, &len);
+ abbrevptr += len;
+
+ assert(abbrevptr < abbrev_start + abbrev_length);
+ const uint64 formtemp = reader_->ReadUnsignedLEB128(abbrevptr, &len);
+ abbrevptr += len;
+ if (nametemp == 0 && formtemp == 0)
+ break;
+
+ const enum DwarfAttribute name =
+ static_cast<enum DwarfAttribute>(nametemp);
+ const enum DwarfForm form = static_cast<enum DwarfForm>(formtemp);
+ abbrev.attributes.push_back(std::make_pair(name, form));
+ }
+ assert(abbrev.number == abbrevs_->size());
+ abbrevs_->push_back(abbrev);
+ }
+}
+
+// Skips a single DIE's attributes.
+const char* CompilationUnit::SkipDIE(const char* start,
+ const Abbrev& abbrev) {
+ for (AttributeList::const_iterator i = abbrev.attributes.begin();
+ i != abbrev.attributes.end();
+ i++) {
+ start = SkipAttribute(start, i->second);
+ }
+ return start;
+}
+
+// Skips a single attribute form's data.
+const char* CompilationUnit::SkipAttribute(const char* start,
+ enum DwarfForm form) {
+ size_t len;
+
+ switch (form) {
+ case DW_FORM_indirect:
+ form = static_cast<enum DwarfForm>(reader_->ReadUnsignedLEB128(start,
+ &len));
+ start += len;
+ return SkipAttribute(start, form);
+
+ case DW_FORM_flag_present:
+ return start;
+ case DW_FORM_data1:
+ case DW_FORM_flag:
+ case DW_FORM_ref1:
+ return start + 1;
+ case DW_FORM_ref2:
+ case DW_FORM_data2:
+ return start + 2;
+ case DW_FORM_ref4:
+ case DW_FORM_data4:
+ return start + 4;
+ case DW_FORM_ref8:
+ case DW_FORM_data8:
+ case DW_FORM_ref_sig8:
+ return start + 8;
+ case DW_FORM_string:
+ return start + strlen(start) + 1;
+ case DW_FORM_udata:
+ case DW_FORM_ref_udata:
+ reader_->ReadUnsignedLEB128(start, &len);
+ return start + len;
+
+ case DW_FORM_sdata:
+ reader_->ReadSignedLEB128(start, &len);
+ return start + len;
+ 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
+ // offset size.
+ assert(header_.version == 2 || header_.version == 3);
+ if (header_.version == 2) {
+ return start + reader_->AddressSize();
+ } else if (header_.version == 3) {
+ return start + reader_->OffsetSize();
+ }
+
+ case DW_FORM_block1:
+ return start + 1 + reader_->ReadOneByte(start);
+ case DW_FORM_block2:
+ return start + 2 + reader_->ReadTwoBytes(start);
+ case DW_FORM_block4:
+ return start + 4 + reader_->ReadFourBytes(start);
+ case DW_FORM_block:
+ case DW_FORM_exprloc: {
+ uint64 size = reader_->ReadUnsignedLEB128(start, &len);
+ return start + size + len;
+ }
+ case DW_FORM_strp:
+ case DW_FORM_sec_offset:
+ return start + reader_->OffsetSize();
+ }
+ fprintf(stderr,"Unhandled form type");
+ return NULL;
+}
+
+// Read a DWARF2/3 header.
+// The header is variable length in DWARF3 (and DWARF2 as extended by
+// most compilers), and consists of an length field, a version number,
+// the offset in the .debug_abbrev section for our abbrevs, and an
+// address size.
+void CompilationUnit::ReadHeader() {
+ const char* headerptr = buffer_;
+ size_t initial_length_size;
+
+ assert(headerptr + 4 < buffer_ + buffer_length_);
+ const uint64 initial_length
+ = reader_->ReadInitialLength(headerptr, &initial_length_size);
+ headerptr += initial_length_size;
+ header_.length = initial_length;
+
+ assert(headerptr + 2 < buffer_ + buffer_length_);
+ header_.version = reader_->ReadTwoBytes(headerptr);
+ headerptr += 2;
+
+ assert(headerptr + reader_->OffsetSize() < buffer_ + buffer_length_);
+ header_.abbrev_offset = reader_->ReadOffset(headerptr);
+ headerptr += reader_->OffsetSize();
+
+ assert(headerptr + 1 < buffer_ + buffer_length_);
+ header_.address_size = reader_->ReadOneByte(headerptr);
+ reader_->SetAddressSize(header_.address_size);
+ headerptr += 1;
+
+ after_header_ = headerptr;
+
+ // This check ensures that we don't have to do checking during the
+ // reading of DIEs. header_.length does not include the size of the
+ // initial length.
+ assert(buffer_ + initial_length_size + header_.length <=
+ buffer_ + buffer_length_);
+}
+
+uint64 CompilationUnit::Start() {
+ // First get the debug_info section. ".debug_info" is the name
+ // recommended in the DWARF spec, and used on Linux; "__debug_info"
+ // is the name used in Mac OS X Mach-O files.
+ SectionMap::const_iterator iter = sections_.find(".debug_info");
+ if (iter == sections_.end())
+ iter = sections_.find("__debug_info");
+ assert(iter != sections_.end());
+
+ // Set up our buffer
+ buffer_ = iter->second.first + offset_from_section_start_;
+ buffer_length_ = iter->second.second - offset_from_section_start_;
+
+ // Read the header
+ ReadHeader();
+
+ // Figure out the real length from the end of the initial length to
+ // the end of the compilation unit, since that is the value we
+ // return.
+ uint64 ourlength = header_.length;
+ if (reader_->OffsetSize() == 8)
+ ourlength += 12;
+ else
+ ourlength += 4;
+
+ // See if the user wants this compilation unit, and if not, just return.
+ if (!handler_->StartCompilationUnit(offset_from_section_start_,
+ reader_->AddressSize(),
+ reader_->OffsetSize(),
+ header_.length,
+ header_.version))
+ return ourlength;
+
+ // Otherwise, continue by reading our abbreviation entries.
+ ReadAbbrevs();
+
+ // Set the string section if we have one. ".debug_str" is the name
+ // recommended in the DWARF spec, and used on Linux; "__debug_str"
+ // is the name used in Mac OS X Mach-O files.
+ iter = sections_.find(".debug_str");
+ if (iter == sections_.end())
+ iter = sections_.find("__debug_str");
+ if (iter != sections_.end()) {
+ string_buffer_ = iter->second.first;
+ string_buffer_length_ = iter->second.second;
+ }
+
+ // Now that we have our abbreviations, start processing DIE's.
+ ProcessDIEs();
+
+ 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,
+ enum DwarfForm form) {
+ size_t len;
+
+ switch (form) {
+ // DW_FORM_indirect is never used because it is such a space
+ // waster.
+ case DW_FORM_indirect:
+ form = static_cast<enum DwarfForm>(reader_->ReadUnsignedLEB128(start,
+ &len));
+ start += len;
+ return ProcessAttribute(dieoffset, start, attr, form);
+
+ case DW_FORM_flag_present:
+ handler_->ProcessAttributeUnsigned(dieoffset, attr, form, 1);
+ return start;
+ case DW_FORM_data1:
+ case DW_FORM_flag:
+ handler_->ProcessAttributeUnsigned(dieoffset, attr, form,
+ reader_->ReadOneByte(start));
+ return start + 1;
+ case DW_FORM_data2:
+ handler_->ProcessAttributeUnsigned(dieoffset, attr, form,
+ reader_->ReadTwoBytes(start));
+ return start + 2;
+ case DW_FORM_data4:
+ handler_->ProcessAttributeUnsigned(dieoffset, attr, form,
+ reader_->ReadFourBytes(start));
+ return start + 4;
+ case DW_FORM_data8:
+ handler_->ProcessAttributeUnsigned(dieoffset, attr, form,
+ reader_->ReadEightBytes(start));
+ return start + 8;
+ case DW_FORM_string: {
+ const char* str = start;
+ handler_->ProcessAttributeString(dieoffset, attr, form,
+ str);
+ return start + strlen(str) + 1;
+ }
+ case DW_FORM_udata:
+ handler_->ProcessAttributeUnsigned(dieoffset, attr, form,
+ reader_->ReadUnsignedLEB128(start,
+ &len));
+ return start + len;
+
+ case DW_FORM_sdata:
+ handler_->ProcessAttributeSigned(dieoffset, attr, form,
+ reader_->ReadSignedLEB128(start, &len));
+ return start + len;
+ case DW_FORM_addr:
+ handler_->ProcessAttributeUnsigned(dieoffset, attr, form,
+ reader_->ReadAddress(start));
+ return start + reader_->AddressSize();
+ case DW_FORM_sec_offset:
+ handler_->ProcessAttributeUnsigned(dieoffset, attr, form,
+ reader_->ReadOffset(start));
+ return start + reader_->OffsetSize();
+
+ case DW_FORM_ref1:
+ handler_->ProcessAttributeReference(dieoffset, attr, form,
+ reader_->ReadOneByte(start)
+ + offset_from_section_start_);
+ return start + 1;
+ case DW_FORM_ref2:
+ handler_->ProcessAttributeReference(dieoffset, attr, form,
+ reader_->ReadTwoBytes(start)
+ + offset_from_section_start_);
+ return start + 2;
+ case DW_FORM_ref4:
+ handler_->ProcessAttributeReference(dieoffset, attr, form,
+ reader_->ReadFourBytes(start)
+ + offset_from_section_start_);
+ return start + 4;
+ case DW_FORM_ref8:
+ handler_->ProcessAttributeReference(dieoffset, attr, form,
+ reader_->ReadEightBytes(start)
+ + offset_from_section_start_);
+ return start + 8;
+ case DW_FORM_ref_udata:
+ handler_->ProcessAttributeReference(dieoffset, attr, form,
+ reader_->ReadUnsignedLEB128(start,
+ &len)
+ + offset_from_section_start_);
+ return start + len;
+ case DW_FORM_ref_addr:
+ // DWARF2 and 3 differ on whether ref_addr is address size or
+ // offset size.
+ assert(header_.version == 2 || header_.version == 3);
+ if (header_.version == 2) {
+ handler_->ProcessAttributeReference(dieoffset, attr, form,
+ reader_->ReadAddress(start));
+ return start + reader_->AddressSize();
+ } else if (header_.version == 3) {
+ handler_->ProcessAttributeReference(dieoffset, attr, form,
+ reader_->ReadOffset(start));
+ return start + reader_->OffsetSize();
+ }
+ break;
+ case DW_FORM_ref_sig8:
+ handler_->ProcessAttributeSignature(dieoffset, attr, form,
+ reader_->ReadEightBytes(start));
+ return start + 8;
+
+ case DW_FORM_block1: {
+ uint64 datalen = reader_->ReadOneByte(start);
+ handler_->ProcessAttributeBuffer(dieoffset, attr, form, start + 1,
+ datalen);
+ return start + 1 + datalen;
+ }
+ case DW_FORM_block2: {
+ uint64 datalen = reader_->ReadTwoBytes(start);
+ handler_->ProcessAttributeBuffer(dieoffset, attr, form, start + 2,
+ datalen);
+ return start + 2 + datalen;
+ }
+ case DW_FORM_block4: {
+ uint64 datalen = reader_->ReadFourBytes(start);
+ handler_->ProcessAttributeBuffer(dieoffset, attr, form, start + 4,
+ datalen);
+ return start + 4 + datalen;
+ }
+ case DW_FORM_block:
+ case DW_FORM_exprloc: {
+ uint64 datalen = reader_->ReadUnsignedLEB128(start, &len);
+ handler_->ProcessAttributeBuffer(dieoffset, attr, form, start + len,
+ datalen);
+ return start + datalen + len;
+ }
+ case DW_FORM_strp: {
+ assert(string_buffer_ != NULL);
+
+ 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);
+ return start + reader_->OffsetSize();
+ }
+ }
+ fprintf(stderr, "Unhandled form type\n");
+ return NULL;
+}
+
+const char* CompilationUnit::ProcessDIE(uint64 dieoffset,
+ const char* 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);
+ }
+ return start;
+}
+
+void CompilationUnit::ProcessDIEs() {
+ const char* 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_;
+
+ // In 64 bit dwarf, the initial length is 12 bytes, because of the
+ // 0xffffffff at the start.
+ if (reader_->OffsetSize() == 8)
+ lengthstart += 12;
+ else
+ lengthstart += 4;
+
+ std::stack<uint64> die_stack;
+
+ while (dieptr < (lengthstart + header_.length)) {
+ // We give the user the absolute offset from the beginning of
+ // debug_info, since they need it to deal with ref_addr forms.
+ uint64 absolute_offset = (dieptr - buffer_) + offset_from_section_start_;
+
+ uint64 abbrev_num = reader_->ReadUnsignedLEB128(dieptr, &len);
+
+ dieptr += len;
+
+ // Abbrev == 0 represents the end of a list of children, or padding
+ // at the end of the compilation unit.
+ if (abbrev_num == 0) {
+ if (die_stack.size() == 0)
+ // If it is padding, then we are done with the compilation unit's DIEs.
+ return;
+ const uint64 offset = die_stack.top();
+ die_stack.pop();
+ handler_->EndDIE(offset);
+ continue;
+ }
+
+ 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)) {
+ dieptr = SkipDIE(dieptr, abbrev);
+ } else {
+ dieptr = ProcessDIE(absolute_offset, dieptr, abbrev);
+ }
+
+ if (abbrev.has_children) {
+ die_stack.push(absolute_offset);
+ } else {
+ handler_->EndDIE(absolute_offset);
+ }
+ }
+}
+
+LineInfo::LineInfo(const char* buffer, uint64 buffer_length,
+ ByteReader* reader, LineInfoHandler* handler):
+ handler_(handler), reader_(reader), buffer_(buffer),
+ buffer_length_(buffer_length) {
+ header_.std_opcode_lengths = NULL;
+}
+
+uint64 LineInfo::Start() {
+ ReadHeader();
+ ReadLines();
+ return after_header_ - buffer_;
+}
+
+// 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_;
+ size_t initial_length_size;
+
+ const uint64 initial_length
+ = reader_->ReadInitialLength(lineptr, &initial_length_size);
+
+ lineptr += initial_length_size;
+ header_.total_length = initial_length;
+ assert(buffer_ + initial_length_size + header_.total_length <=
+ buffer_ + buffer_length_);
+
+ // Address size *must* be set by CU ahead of time.
+ assert(reader_->AddressSize() != 0);
+
+ header_.version = reader_->ReadTwoBytes(lineptr);
+ lineptr += 2;
+
+ header_.prologue_length = reader_->ReadOffset(lineptr);
+ lineptr += reader_->OffsetSize();
+
+ header_.min_insn_length = reader_->ReadOneByte(lineptr);
+ lineptr += 1;
+
+ header_.default_is_stmt = reader_->ReadOneByte(lineptr);
+ lineptr += 1;
+
+ header_.line_base = *reinterpret_cast<const int8*>(lineptr);
+ lineptr += 1;
+
+ header_.line_range = reader_->ReadOneByte(lineptr);
+ lineptr += 1;
+
+ header_.opcode_base = reader_->ReadOneByte(lineptr);
+ lineptr += 1;
+
+ header_.std_opcode_lengths = new std::vector<unsigned char>;
+ header_.std_opcode_lengths->resize(header_.opcode_base + 1);
+ (*header_.std_opcode_lengths)[0] = 0;
+ for (int i = 1; i < header_.opcode_base; i++) {
+ (*header_.std_opcode_lengths)[i] = reader_->ReadOneByte(lineptr);
+ lineptr += 1;
+ }
+
+ // It is legal for the directory entry table to be empty.
+ if (*lineptr) {
+ uint32 dirindex = 1;
+ while (*lineptr) {
+ const char* dirname = lineptr;
+ handler_->DefineDir(dirname, dirindex);
+ lineptr += strlen(dirname) + 1;
+ dirindex++;
+ }
+ }
+ lineptr++;
+
+ // It is also legal for the file entry table to be empty.
+ if (*lineptr) {
+ uint32 fileindex = 1;
+ size_t len;
+ while (*lineptr) {
+ const char* filename = lineptr;
+ lineptr += strlen(filename) + 1;
+
+ uint64 dirindex = reader_->ReadUnsignedLEB128(lineptr, &len);
+ lineptr += len;
+
+ uint64 mod_time = reader_->ReadUnsignedLEB128(lineptr, &len);
+ lineptr += len;
+
+ uint64 filelength = reader_->ReadUnsignedLEB128(lineptr, &len);
+ lineptr += len;
+ handler_->DefineFile(filename, fileindex, static_cast<uint32>(dirindex),
+ mod_time, filelength);
+ fileindex++;
+ }
+ }
+ lineptr++;
+
+ after_header_ = lineptr;
+}
+
+/* static */
+bool LineInfo::ProcessOneOpcode(ByteReader* reader,
+ LineInfoHandler* handler,
+ const struct LineInfoHeader &header,
+ const char* start,
+ struct LineStateMachine* lsm,
+ size_t* len,
+ uintptr pc,
+ bool *lsm_passes_pc) {
+ size_t oplen = 0;
+ size_t templen;
+ uint8 opcode = reader->ReadOneByte(start);
+ oplen++;
+ start++;
+
+ // If the opcode is great than the opcode_base, it is a special
+ // opcode. Most line programs consist mainly of special opcodes.
+ if (opcode >= header.opcode_base) {
+ opcode -= header.opcode_base;
+ const int64 advance_address = (opcode / header.line_range)
+ * header.min_insn_length;
+ const int32 advance_line = (opcode % header.line_range)
+ + header.line_base;
+
+ // Check if the lsm passes "pc". If so, mark it as passed.
+ if (lsm_passes_pc &&
+ lsm->address <= pc && pc < lsm->address + advance_address) {
+ *lsm_passes_pc = true;
+ }
+
+ lsm->address += advance_address;
+ lsm->line_num += advance_line;
+ lsm->basic_block = true;
+ *len = oplen;
+ return true;
+ }
+
+ // Otherwise, we have the regular opcodes
+ switch (opcode) {
+ case DW_LNS_copy: {
+ lsm->basic_block = false;
+ *len = oplen;
+ return true;
+ }
+
+ case DW_LNS_advance_pc: {
+ uint64 advance_address = reader->ReadUnsignedLEB128(start, &templen);
+ oplen += templen;
+
+ // Check if the lsm passes "pc". If so, mark it as passed.
+ if (lsm_passes_pc && lsm->address <= pc &&
+ pc < lsm->address + header.min_insn_length * advance_address) {
+ *lsm_passes_pc = true;
+ }
+
+ lsm->address += header.min_insn_length * advance_address;
+ }
+ break;
+ case DW_LNS_advance_line: {
+ const int64 advance_line = reader->ReadSignedLEB128(start, &templen);
+ oplen += templen;
+ lsm->line_num += static_cast<int32>(advance_line);
+
+ // With gcc 4.2.1, we can get the line_no here for the first time
+ // since DW_LNS_advance_line is called after DW_LNE_set_address is
+ // called. So we check if the lsm passes "pc" here, not in
+ // DW_LNE_set_address.
+ if (lsm_passes_pc && lsm->address == pc) {
+ *lsm_passes_pc = true;
+ }
+ }
+ break;
+ case DW_LNS_set_file: {
+ const uint64 fileno = reader->ReadUnsignedLEB128(start, &templen);
+ oplen += templen;
+ lsm->file_num = static_cast<uint32>(fileno);
+ }
+ break;
+ case DW_LNS_set_column: {
+ const uint64 colno = reader->ReadUnsignedLEB128(start, &templen);
+ oplen += templen;
+ lsm->column_num = static_cast<uint32>(colno);
+ }
+ break;
+ case DW_LNS_negate_stmt: {
+ lsm->is_stmt = !lsm->is_stmt;
+ }
+ break;
+ case DW_LNS_set_basic_block: {
+ lsm->basic_block = true;
+ }
+ break;
+ case DW_LNS_fixed_advance_pc: {
+ const uint16 advance_address = reader->ReadTwoBytes(start);
+ oplen += 2;
+
+ // Check if the lsm passes "pc". If so, mark it as passed.
+ if (lsm_passes_pc &&
+ lsm->address <= pc && pc < lsm->address + advance_address) {
+ *lsm_passes_pc = true;
+ }
+
+ lsm->address += advance_address;
+ }
+ break;
+ case DW_LNS_const_add_pc: {
+ const int64 advance_address = header.min_insn_length
+ * ((255 - header.opcode_base)
+ / header.line_range);
+
+ // Check if the lsm passes "pc". If so, mark it as passed.
+ if (lsm_passes_pc &&
+ lsm->address <= pc && pc < lsm->address + advance_address) {
+ *lsm_passes_pc = true;
+ }
+
+ lsm->address += advance_address;
+ }
+ break;
+ case DW_LNS_extended_op: {
+ const uint64 extended_op_len = reader->ReadUnsignedLEB128(start,
+ &templen);
+ start += templen;
+ oplen += templen + extended_op_len;
+
+ const uint64 extended_op = reader->ReadOneByte(start);
+ start++;
+
+ switch (extended_op) {
+ case DW_LNE_end_sequence: {
+ lsm->end_sequence = true;
+ *len = oplen;
+ return true;
+ }
+ break;
+ case DW_LNE_set_address: {
+ // With gcc 4.2.1, we cannot tell the line_no here since
+ // DW_LNE_set_address is called before DW_LNS_advance_line is
+ // called. So we do not check if the lsm passes "pc" here. See
+ // also the comment in DW_LNS_advance_line.
+ uint64 address = reader->ReadAddress(start);
+ lsm->address = address;
+ }
+ break;
+ case DW_LNE_define_file: {
+ const char* filename = start;
+
+ templen = strlen(filename) + 1;
+ start += templen;
+
+ uint64 dirindex = reader->ReadUnsignedLEB128(start, &templen);
+ oplen += templen;
+
+ const uint64 mod_time = reader->ReadUnsignedLEB128(start,
+ &templen);
+ oplen += templen;
+
+ const uint64 filelength = reader->ReadUnsignedLEB128(start,
+ &templen);
+ oplen += templen;
+
+ if (handler) {
+ handler->DefineFile(filename, -1, static_cast<uint32>(dirindex),
+ mod_time, filelength);
+ }
+ }
+ break;
+ }
+ }
+ break;
+
+ default: {
+ // Ignore unknown opcode silently
+ if (header.std_opcode_lengths) {
+ for (int i = 0; i < (*header.std_opcode_lengths)[opcode]; i++) {
+ reader->ReadUnsignedLEB128(start, &templen);
+ start += templen;
+ oplen += templen;
+ }
+ }
+ }
+ break;
+ }
+ *len = oplen;
+ return false;
+}
+
+void LineInfo::ReadLines() {
+ struct LineStateMachine lsm;
+
+ // 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_;
+
+ // In 64 bit dwarf, the initial length is 12 bytes, because of the
+ // 0xffffffff at the start.
+ if (reader_->OffsetSize() == 8)
+ lengthstart += 12;
+ else
+ lengthstart += 4;
+
+ const char* lineptr = after_header_;
+ lsm.Reset(header_.default_is_stmt);
+
+ // The LineInfoHandler interface expects each line's length along
+ // with its address, but DWARF only provides addresses (sans
+ // length), and an end-of-sequence address; one infers the length
+ // from the next address. So we report a line only when we get the
+ // next line's address, or the end-of-sequence address.
+ bool have_pending_line = false;
+ uint64 pending_address = 0;
+ uint32 pending_file_num = 0, pending_line_num = 0, pending_column_num = 0;
+
+ while (lineptr < lengthstart + header_.total_length) {
+ size_t oplength;
+ bool add_row = ProcessOneOpcode(reader_, handler_, header_,
+ lineptr, &lsm, &oplength, (uintptr)-1,
+ NULL);
+ if (add_row) {
+ if (have_pending_line)
+ handler_->AddLine(pending_address, lsm.address - pending_address,
+ pending_file_num, pending_line_num,
+ pending_column_num);
+ if (lsm.end_sequence) {
+ lsm.Reset(header_.default_is_stmt);
+ have_pending_line = false;
+ } else {
+ pending_address = lsm.address;
+ pending_file_num = lsm.file_num;
+ pending_line_num = lsm.line_num;
+ pending_column_num = lsm.column_num;
+ have_pending_line = true;
+ }
+ }
+ lineptr += oplength;
+ }
+
+ after_header_ = lengthstart + header_.total_length;
+}
+
+// A DWARF rule for recovering the address or value of a register, or
+// computing the canonical frame address. There is one subclass of this for
+// each '*Rule' member function in CallFrameInfo::Handler.
+//
+// It's annoying that we have to handle Rules using pointers (because
+// the concrete instances can have an arbitrary size). They're small,
+// so it would be much nicer if we could just handle them by value
+// instead of fretting about ownership and destruction.
+//
+// It seems like all these could simply be instances of std::tr1::bind,
+// except that we need instances to be EqualityComparable, too.
+//
+// This could logically be nested within State, but then the qualified names
+// get horrendous.
+class CallFrameInfo::Rule {
+ public:
+ virtual ~Rule() { }
+
+ // Tell HANDLER that, at ADDRESS in the program, REGISTER can be
+ // recovered using this rule. If REGISTER is kCFARegister, then this rule
+ // describes how to compute the canonical frame address. Return what the
+ // HANDLER member function returned.
+ virtual bool Handle(Handler *handler,
+ uint64 address, int register) const = 0;
+
+ // Equality on rules. We use these to decide which rules we need
+ // to report after a DW_CFA_restore_state instruction.
+ virtual bool operator==(const Rule &rhs) const = 0;
+
+ bool operator!=(const Rule &rhs) const { return ! (*this == rhs); }
+
+ // Return a pointer to a copy of this rule.
+ virtual Rule *Copy() const = 0;
+
+ // If this is a base+offset rule, change its base register to REG.
+ // Otherwise, do nothing. (Ugly, but required for DW_CFA_def_cfa_register.)
+ virtual void SetBaseRegister(unsigned reg) { }
+
+ // If this is a base+offset rule, change its offset to OFFSET. Otherwise,
+ // do nothing. (Ugly, but required for DW_CFA_def_cfa_offset.)
+ virtual void SetOffset(long long offset) { }
+};
+
+// Rule: the value the register had in the caller cannot be recovered.
+class CallFrameInfo::UndefinedRule: public CallFrameInfo::Rule {
+ public:
+ UndefinedRule() { }
+ ~UndefinedRule() { }
+ bool Handle(Handler *handler, uint64 address, int reg) const {
+ return handler->UndefinedRule(address, reg);
+ }
+ bool operator==(const Rule &rhs) const {
+ // dynamic_cast is allowed by the Google C++ Style Guide, if the use has
+ // been carefully considered; cheap RTTI-like workarounds are forbidden.
+ const UndefinedRule *our_rhs = dynamic_cast<const UndefinedRule *>(&rhs);
+ return (our_rhs != NULL);
+ }
+ Rule *Copy() const { return new UndefinedRule(*this); }
+};
+
+// Rule: the register's value is the same as that it had in the caller.
+class CallFrameInfo::SameValueRule: public CallFrameInfo::Rule {
+ public:
+ SameValueRule() { }
+ ~SameValueRule() { }
+ bool Handle(Handler *handler, uint64 address, int reg) const {
+ return handler->SameValueRule(address, reg);
+ }
+ bool operator==(const Rule &rhs) const {
+ // dynamic_cast is allowed by the Google C++ Style Guide, if the use has
+ // been carefully considered; cheap RTTI-like workarounds are forbidden.
+ const SameValueRule *our_rhs = dynamic_cast<const SameValueRule *>(&rhs);
+ return (our_rhs != NULL);
+ }
+ Rule *Copy() const { return new SameValueRule(*this); }
+};
+
+// Rule: the register is saved at OFFSET from BASE_REGISTER. BASE_REGISTER
+// may be CallFrameInfo::Handler::kCFARegister.
+class CallFrameInfo::OffsetRule: public CallFrameInfo::Rule {
+ public:
+ OffsetRule(int base_register, long offset)
+ : base_register_(base_register), offset_(offset) { }
+ ~OffsetRule() { }
+ bool Handle(Handler *handler, uint64 address, int reg) const {
+ return handler->OffsetRule(address, reg, base_register_, offset_);
+ }
+ bool operator==(const Rule &rhs) const {
+ // dynamic_cast is allowed by the Google C++ Style Guide, if the use has
+ // been carefully considered; cheap RTTI-like workarounds are forbidden.
+ const OffsetRule *our_rhs = dynamic_cast<const OffsetRule *>(&rhs);
+ return (our_rhs &&
+ base_register_ == our_rhs->base_register_ &&
+ offset_ == our_rhs->offset_);
+ }
+ Rule *Copy() const { return new OffsetRule(*this); }
+ // We don't actually need SetBaseRegister or SetOffset here, since they
+ // are only ever applied to CFA rules, for DW_CFA_def_cfa_offset, and it
+ // doesn't make sense to use OffsetRule for computing the CFA: it
+ // computes the address at which a register is saved, not a value.
+ private:
+ int base_register_;
+ long offset_;
+};
+
+// Rule: the value the register had in the caller is the value of
+// BASE_REGISTER plus offset. BASE_REGISTER may be
+// CallFrameInfo::Handler::kCFARegister.
+class CallFrameInfo::ValOffsetRule: public CallFrameInfo::Rule {
+ public:
+ ValOffsetRule(int base_register, long offset)
+ : base_register_(base_register), offset_(offset) { }
+ ~ValOffsetRule() { }
+ bool Handle(Handler *handler, uint64 address, int reg) const {
+ return handler->ValOffsetRule(address, reg, base_register_, offset_);
+ }
+ bool operator==(const Rule &rhs) const {
+ // dynamic_cast is allowed by the Google C++ Style Guide, if the use has
+ // been carefully considered; cheap RTTI-like workarounds are forbidden.
+ const ValOffsetRule *our_rhs = dynamic_cast<const ValOffsetRule *>(&rhs);
+ return (our_rhs &&
+ base_register_ == our_rhs->base_register_ &&
+ offset_ == our_rhs->offset_);
+ }
+ Rule *Copy() const { return new ValOffsetRule(*this); }
+ void SetBaseRegister(unsigned reg) { base_register_ = reg; }
+ void SetOffset(long long offset) { offset_ = offset; }
+ private:
+ int base_register_;
+ long offset_;
+};
+
+// Rule: the register has been saved in another register REGISTER_NUMBER_.
+class CallFrameInfo::RegisterRule: public CallFrameInfo::Rule {
+ public:
+ explicit RegisterRule(int register_number)
+ : register_number_(register_number) { }
+ ~RegisterRule() { }
+ bool Handle(Handler *handler, uint64 address, int reg) const {
+ return handler->RegisterRule(address, reg, register_number_);
+ }
+ bool operator==(const Rule &rhs) const {
+ // dynamic_cast is allowed by the Google C++ Style Guide, if the use has
+ // been carefully considered; cheap RTTI-like workarounds are forbidden.
+ const RegisterRule *our_rhs = dynamic_cast<const RegisterRule *>(&rhs);
+ return (our_rhs && register_number_ == our_rhs->register_number_);
+ }
+ Rule *Copy() const { return new RegisterRule(*this); }
+ private:
+ int register_number_;
+};
+
+// Rule: EXPRESSION evaluates to the address at which the register is saved.
+class CallFrameInfo::ExpressionRule: public CallFrameInfo::Rule {
+ public:
+ explicit ExpressionRule(const string &expression)
+ : expression_(expression) { }
+ ~ExpressionRule() { }
+ bool Handle(Handler *handler, uint64 address, int reg) const {
+ return handler->ExpressionRule(address, reg, expression_);
+ }
+ bool operator==(const Rule &rhs) const {
+ // dynamic_cast is allowed by the Google C++ Style Guide, if the use has
+ // been carefully considered; cheap RTTI-like workarounds are forbidden.
+ const ExpressionRule *our_rhs = dynamic_cast<const ExpressionRule *>(&rhs);
+ return (our_rhs && expression_ == our_rhs->expression_);
+ }
+ Rule *Copy() const { return new ExpressionRule(*this); }
+ private:
+ string expression_;
+};
+
+// Rule: EXPRESSION evaluates to the address at which the register is saved.
+class CallFrameInfo::ValExpressionRule: public CallFrameInfo::Rule {
+ public:
+ explicit ValExpressionRule(const string &expression)
+ : expression_(expression) { }
+ ~ValExpressionRule() { }
+ bool Handle(Handler *handler, uint64 address, int reg) const {
+ return handler->ValExpressionRule(address, reg, expression_);
+ }
+ bool operator==(const Rule &rhs) const {
+ // dynamic_cast is allowed by the Google C++ Style Guide, if the use has
+ // been carefully considered; cheap RTTI-like workarounds are forbidden.
+ const ValExpressionRule *our_rhs =
+ dynamic_cast<const ValExpressionRule *>(&rhs);
+ return (our_rhs && expression_ == our_rhs->expression_);
+ }
+ Rule *Copy() const { return new ValExpressionRule(*this); }
+ private:
+ string expression_;
+};
+
+// A map from register numbers to rules.
+class CallFrameInfo::RuleMap {
+ public:
+ RuleMap() : cfa_rule_(NULL) { }
+ RuleMap(const RuleMap &rhs) : cfa_rule_(NULL) { *this = rhs; }
+ ~RuleMap() { Clear(); }
+
+ RuleMap &operator=(const RuleMap &rhs);
+
+ // Set the rule for computing the CFA to RULE. Take ownership of RULE.
+ void SetCFARule(Rule *rule) { delete cfa_rule_; cfa_rule_ = rule; }
+
+ // Return the current CFA rule. Unlike RegisterRule, this RuleMap retains
+ // ownership of the rule. We use this for DW_CFA_def_cfa_offset and
+ // DW_CFA_def_cfa_register, and for detecting references to the CFA before
+ // a rule for it has been established.
+ Rule *CFARule() const { return cfa_rule_; }
+
+ // Return the rule for REG, or NULL if there is none. The caller takes
+ // ownership of the result.
+ Rule *RegisterRule(int reg) const;
+
+ // Set the rule for computing REG to RULE. Take ownership of RULE.
+ void SetRegisterRule(int reg, Rule *rule);
+
+ // Make all the appropriate calls to HANDLER as if we were changing from
+ // this RuleMap to NEW_RULES at ADDRESS. We use this to implement
+ // DW_CFA_restore_state, where lots of rules can change simultaneously.
+ // Return true if all handlers returned true; otherwise, return false.
+ bool HandleTransitionTo(Handler *handler, uint64 address,
+ const RuleMap &new_rules) const;
+
+ private:
+ // A map from register numbers to Rules.
+ typedef std::map<int, Rule *> RuleByNumber;
+
+ // Remove all register rules and clear cfa_rule_.
+ void Clear();
+
+ // The rule for computing the canonical frame address. This RuleMap owns
+ // this rule.
+ Rule *cfa_rule_;
+
+ // A map from register numbers to postfix expressions to recover
+ // their values. This RuleMap owns the Rules the map refers to.
+ RuleByNumber registers_;
+};
+
+CallFrameInfo::RuleMap &CallFrameInfo::RuleMap::operator=(const RuleMap &rhs) {
+ Clear();
+ // Since each map owns the rules it refers to, assignment must copy them.
+ if (rhs.cfa_rule_) cfa_rule_ = rhs.cfa_rule_->Copy();
+ for (RuleByNumber::const_iterator it = rhs.registers_.begin();
+ it != rhs.registers_.end(); it++)
+ registers_[it->first] = it->second->Copy();
+ return *this;
+}
+
+CallFrameInfo::Rule *CallFrameInfo::RuleMap::RegisterRule(int reg) const {
+ assert(reg != Handler::kCFARegister);
+ RuleByNumber::const_iterator it = registers_.find(reg);
+ if (it != registers_.end())
+ return it->second->Copy();
+ else
+ return NULL;
+}
+
+void CallFrameInfo::RuleMap::SetRegisterRule(int reg, Rule *rule) {
+ assert(reg != Handler::kCFARegister);
+ assert(rule);
+ Rule **slot = &registers_[reg];
+ delete *slot;
+ *slot = rule;
+}
+
+bool CallFrameInfo::RuleMap::HandleTransitionTo(
+ Handler *handler,
+ uint64 address,
+ const RuleMap &new_rules) const {
+ // Transition from cfa_rule_ to new_rules.cfa_rule_.
+ if (cfa_rule_ && new_rules.cfa_rule_) {
+ if (*cfa_rule_ != *new_rules.cfa_rule_ &&
+ !new_rules.cfa_rule_->Handle(handler, address,
+ Handler::kCFARegister))
+ return false;
+ } else if (cfa_rule_) {
+ // this RuleMap has a CFA rule but new_rules doesn't.
+ // CallFrameInfo::Handler has no way to handle this --- and shouldn't;
+ // it's garbage input. The instruction interpreter should have
+ // detected this and warned, so take no action here.
+ } else if (new_rules.cfa_rule_) {
+ // This shouldn't be possible: NEW_RULES is some prior state, and
+ // there's no way to remove entries.
+ assert(0);
+ } else {
+ // Both CFA rules are empty. No action needed.
+ }
+
+ // Traverse the two maps in order by register number, and report
+ // whatever differences we find.
+ RuleByNumber::const_iterator old_it = registers_.begin();
+ RuleByNumber::const_iterator new_it = new_rules.registers_.begin();
+ while (old_it != registers_.end() && new_it != new_rules.registers_.end()) {
+ if (old_it->first < new_it->first) {
+ // This RuleMap has an entry for old_it->first, but NEW_RULES
+ // doesn't.
+ //
+ // This isn't really the right thing to do, but since CFI generally
+ // only mentions callee-saves registers, and GCC's convention for
+ // callee-saves registers is that they are unchanged, it's a good
+ // approximation.
+ if (!handler->SameValueRule(address, old_it->first))
+ return false;
+ old_it++;
+ } else if (old_it->first > new_it->first) {
+ // NEW_RULES has entry for new_it->first, but this RuleMap
+ // doesn't. This shouldn't be possible: NEW_RULES is some prior
+ // state, and there's no way to remove entries.
+ assert(0);
+ } else {
+ // Both maps have an entry for this register. Report the new
+ // rule if it is different.
+ if (*old_it->second != *new_it->second &&
+ !new_it->second->Handle(handler, address, new_it->first))
+ return false;
+ new_it++, old_it++;
+ }
+ }
+ // Finish off entries from this RuleMap with no counterparts in new_rules.
+ while (old_it != registers_.end()) {
+ if (!handler->SameValueRule(address, old_it->first))
+ return false;
+ old_it++;
+ }
+ // Since we only make transitions from a rule set to some previously
+ // saved rule set, and we can only add rules to the map, NEW_RULES
+ // must have fewer rules than *this.
+ assert(new_it == new_rules.registers_.end());
+
+ return true;
+}
+
+// Remove all register rules and clear cfa_rule_.
+void CallFrameInfo::RuleMap::Clear() {
+ delete cfa_rule_;
+ cfa_rule_ = NULL;
+ for (RuleByNumber::iterator it = registers_.begin();
+ it != registers_.end(); it++)
+ delete it->second;
+ registers_.clear();
+}
+
+// The state of the call frame information interpreter as it processes
+// instructions from a CIE and FDE.
+class CallFrameInfo::State {
+ public:
+ // Create a call frame information interpreter state with the given
+ // reporter, reader, handler, and initial call frame info address.
+ State(ByteReader *reader, Handler *handler, Reporter *reporter,
+ uint64 address)
+ : reader_(reader), handler_(handler), reporter_(reporter),
+ address_(address), entry_(NULL), cursor_(NULL) { }
+
+ // Interpret instructions from CIE, save the resulting rule set for
+ // DW_CFA_restore instructions, and return true. On error, report
+ // the problem to reporter_ and return false.
+ bool InterpretCIE(const CIE &cie);
+
+ // Interpret instructions from FDE, and return true. On error,
+ // report the problem to reporter_ and return false.
+ bool InterpretFDE(const FDE &fde);
+
+ private:
+ // The operands of a CFI instruction, for ParseOperands.
+ struct Operands {
+ unsigned register_number; // A register number.
+ uint64 offset; // An offset or address.
+ long signed_offset; // A signed offset.
+ string expression; // A DWARF expression.
+ };
+
+ // Parse CFI instruction operands from STATE's instruction stream as
+ // described by FORMAT. On success, populate OPERANDS with the
+ // results, and return true. On failure, report the problem and
+ // return false.
+ //
+ // Each character of FORMAT should be one of the following:
+ //
+ // 'r' unsigned LEB128 register number (OPERANDS->register_number)
+ // 'o' unsigned LEB128 offset (OPERANDS->offset)
+ // 's' signed LEB128 offset (OPERANDS->signed_offset)
+ // 'a' machine-size address (OPERANDS->offset)
+ // (If the CIE has a 'z' augmentation string, 'a' uses the
+ // encoding specified by the 'R' argument.)
+ // '1' a one-byte offset (OPERANDS->offset)
+ // '2' a two-byte offset (OPERANDS->offset)
+ // '4' a four-byte offset (OPERANDS->offset)
+ // '8' an eight-byte offset (OPERANDS->offset)
+ // 'e' a DW_FORM_block holding a (OPERANDS->expression)
+ // DWARF expression
+ bool ParseOperands(const char *format, Operands *operands);
+
+ // Interpret one CFI instruction from STATE's instruction stream, update
+ // STATE, report any rule changes to handler_, and return true. On
+ // failure, report the problem and return false.
+ bool DoInstruction();
+
+ // The following Do* member functions are subroutines of DoInstruction,
+ // factoring out the actual work of operations that have several
+ // different encodings.
+
+ // Set the CFA rule to be the value of BASE_REGISTER plus OFFSET, and
+ // return true. On failure, report and return false. (Used for
+ // DW_CFA_def_cfa and DW_CFA_def_cfa_sf.)
+ bool DoDefCFA(unsigned base_register, long offset);
+
+ // Change the offset of the CFA rule to OFFSET, and return true. On
+ // failure, report and return false. (Subroutine for
+ // DW_CFA_def_cfa_offset and DW_CFA_def_cfa_offset_sf.)
+ bool DoDefCFAOffset(long offset);
+
+ // Specify that REG can be recovered using RULE, and return true. On
+ // failure, report and return false.
+ bool DoRule(unsigned reg, Rule *rule);
+
+ // Specify that REG can be found at OFFSET from the CFA, and return true.
+ // On failure, report and return false. (Subroutine for DW_CFA_offset,
+ // DW_CFA_offset_extended, and DW_CFA_offset_extended_sf.)
+ bool DoOffset(unsigned reg, long offset);
+
+ // Specify that the caller's value for REG is the CFA plus OFFSET,
+ // and return true. On failure, report and return false. (Subroutine
+ // for DW_CFA_val_offset and DW_CFA_val_offset_sf.)
+ bool DoValOffset(unsigned reg, long offset);
+
+ // Restore REG to the rule established in the CIE, and return true. On
+ // failure, report and return false. (Subroutine for DW_CFA_restore and
+ // DW_CFA_restore_extended.)
+ bool DoRestore(unsigned reg);
+
+ // Return the section offset of the instruction at cursor. For use
+ // in error messages.
+ uint64 CursorOffset() { return entry_->offset + (cursor_ - entry_->start); }
+
+ // Report that entry_ is incomplete, and return false. For brevity.
+ bool ReportIncomplete() {
+ reporter_->Incomplete(entry_->offset, entry_->kind);
+ return false;
+ }
+
+ // For reading multi-byte values with the appropriate endianness.
+ ByteReader *reader_;
+
+ // The handler to which we should report the data we find.
+ Handler *handler_;
+
+ // For reporting problems in the info we're parsing.
+ Reporter *reporter_;
+
+ // The code address to which the next instruction in the stream applies.
+ uint64 address_;
+
+ // The entry whose instructions we are currently processing. This is
+ // first a CIE, and then an FDE.
+ const Entry *entry_;
+
+ // The next instruction to process.
+ const char *cursor_;
+
+ // The current set of rules.
+ RuleMap rules_;
+
+ // The set of rules established by the CIE, used by DW_CFA_restore
+ // and DW_CFA_restore_extended. We set this after interpreting the
+ // CIE's instructions.
+ RuleMap cie_rules_;
+
+ // A stack of saved states, for DW_CFA_remember_state and
+ // DW_CFA_restore_state.
+ std::stack<RuleMap> saved_rules_;
+};
+
+bool CallFrameInfo::State::InterpretCIE(const CIE &cie) {
+ entry_ = &cie;
+ cursor_ = entry_->instructions;
+ while (cursor_ < entry_->end)
+ if (!DoInstruction())
+ return false;
+ // Note the rules established by the CIE, for use by DW_CFA_restore
+ // and DW_CFA_restore_extended.
+ cie_rules_ = rules_;
+ return true;
+}
+
+bool CallFrameInfo::State::InterpretFDE(const FDE &fde) {
+ entry_ = &fde;
+ cursor_ = entry_->instructions;
+ while (cursor_ < entry_->end)
+ if (!DoInstruction())
+ return false;
+ return true;
+}
+
+bool CallFrameInfo::State::ParseOperands(const char *format,
+ Operands *operands) {
+ size_t len;
+ const char *operand;
+
+ for (operand = format; *operand; operand++) {
+ size_t bytes_left = entry_->end - cursor_;
+ switch (*operand) {
+ case 'r':
+ operands->register_number = reader_->ReadUnsignedLEB128(cursor_, &len);
+ if (len > bytes_left) return ReportIncomplete();
+ cursor_ += len;
+ break;
+
+ case 'o':
+ operands->offset = reader_->ReadUnsignedLEB128(cursor_, &len);
+ if (len > bytes_left) return ReportIncomplete();
+ cursor_ += len;
+ break;
+
+ case 's':
+ operands->signed_offset = reader_->ReadSignedLEB128(cursor_, &len);
+ if (len > bytes_left) return ReportIncomplete();
+ cursor_ += len;
+ break;
+
+ case 'a':
+ operands->offset =
+ reader_->ReadEncodedPointer(cursor_, entry_->cie->pointer_encoding,
+ &len);
+ if (len > bytes_left) return ReportIncomplete();
+ cursor_ += len;
+ break;
+
+ case '1':
+ if (1 > bytes_left) return ReportIncomplete();
+ operands->offset = static_cast<unsigned char>(*cursor_++);
+ break;
+
+ case '2':
+ if (2 > bytes_left) return ReportIncomplete();
+ operands->offset = reader_->ReadTwoBytes(cursor_);
+ cursor_ += 2;
+ break;
+
+ case '4':
+ if (4 > bytes_left) return ReportIncomplete();
+ operands->offset = reader_->ReadFourBytes(cursor_);
+ cursor_ += 4;
+ break;
+
+ case '8':
+ if (8 > bytes_left) return ReportIncomplete();
+ operands->offset = reader_->ReadEightBytes(cursor_);
+ cursor_ += 8;
+ break;
+
+ case 'e': {
+ size_t expression_length = reader_->ReadUnsignedLEB128(cursor_, &len);
+ if (len > bytes_left || expression_length > bytes_left - len)
+ return ReportIncomplete();
+ cursor_ += len;
+ operands->expression = string(cursor_, expression_length);
+ cursor_ += expression_length;
+ break;
+ }
+
+ default:
+ assert(0);
+ }
+ }
+
+ return true;
+}
+
+bool CallFrameInfo::State::DoInstruction() {
+ CIE *cie = entry_->cie;
+ Operands ops;
+
+ // Our entry's kind should have been set by now.
+ assert(entry_->kind != kUnknown);
+
+ // We shouldn't have been invoked unless there were more
+ // instructions to parse.
+ assert(cursor_ < entry_->end);
+
+ unsigned opcode = *cursor_++;
+ if ((opcode & 0xc0) != 0) {
+ switch (opcode & 0xc0) {
+ // Advance the address.
+ case DW_CFA_advance_loc: {
+ size_t code_offset = opcode & 0x3f;
+ address_ += code_offset * cie->code_alignment_factor;
+ break;
+ }
+
+ // Find a register at an offset from the CFA.
+ case DW_CFA_offset:
+ if (!ParseOperands("o", &ops) ||
+ !DoOffset(opcode & 0x3f, ops.offset * cie->data_alignment_factor))
+ return false;
+ break;
+
+ // Restore the rule established for a register by the CIE.
+ case DW_CFA_restore:
+ if (!DoRestore(opcode & 0x3f)) return false;
+ break;
+
+ // The 'if' above should have excluded this possibility.
+ default:
+ assert(0);
+ }
+
+ // Return here, so the big switch below won't be indented.
+ return true;
+ }
+
+ switch (opcode) {
+ // Set the address.
+ case DW_CFA_set_loc:
+ if (!ParseOperands("a", &ops)) return false;
+ address_ = ops.offset;
+ break;
+
+ // Advance the address.
+ case DW_CFA_advance_loc1:
+ if (!ParseOperands("1", &ops)) return false;
+ address_ += ops.offset * cie->code_alignment_factor;
+ break;
+
+ // Advance the address.
+ case DW_CFA_advance_loc2:
+ if (!ParseOperands("2", &ops)) return false;
+ address_ += ops.offset * cie->code_alignment_factor;
+ break;
+
+ // Advance the address.
+ case DW_CFA_advance_loc4:
+ if (!ParseOperands("4", &ops)) return false;
+ address_ += ops.offset * cie->code_alignment_factor;
+ break;
+
+ // Advance the address.
+ case DW_CFA_MIPS_advance_loc8:
+ if (!ParseOperands("8", &ops)) return false;
+ address_ += ops.offset * cie->code_alignment_factor;
+ break;
+
+ // Compute the CFA by adding an offset to a register.
+ case DW_CFA_def_cfa:
+ if (!ParseOperands("ro", &ops) ||
+ !DoDefCFA(ops.register_number, ops.offset))
+ return false;
+ break;
+
+ // Compute the CFA by adding an offset to a register.
+ case DW_CFA_def_cfa_sf:
+ if (!ParseOperands("rs", &ops) ||
+ !DoDefCFA(ops.register_number,
+ ops.signed_offset * cie->data_alignment_factor))
+ return false;
+ break;
+
+ // Change the base register used to compute the CFA.
+ case DW_CFA_def_cfa_register: {
+ Rule *cfa_rule = rules_.CFARule();
+ if (!cfa_rule) {
+ reporter_->NoCFARule(entry_->offset, entry_->kind, CursorOffset());
+ 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;
+ }
+
+ // Change the offset used to compute the CFA.
+ case DW_CFA_def_cfa_offset:
+ if (!ParseOperands("o", &ops) ||
+ !DoDefCFAOffset(ops.offset))
+ return false;
+ break;
+
+ // Change the offset used to compute the CFA.
+ case DW_CFA_def_cfa_offset_sf:
+ if (!ParseOperands("s", &ops) ||
+ !DoDefCFAOffset(ops.signed_offset * cie->data_alignment_factor))
+ return false;
+ break;
+
+ // Specify an expression whose value is the CFA.
+ case DW_CFA_def_cfa_expression: {
+ if (!ParseOperands("e", &ops))
+ return false;
+ Rule *rule = new ValExpressionRule(ops.expression);
+ rules_.SetCFARule(rule);
+ if (!rule->Handle(handler_, address_,
+ Handler::kCFARegister))
+ return false;
+ break;
+ }
+
+ // The register's value cannot be recovered.
+ case DW_CFA_undefined: {
+ if (!ParseOperands("r", &ops) ||
+ !DoRule(ops.register_number, new UndefinedRule()))
+ return false;
+ break;
+ }
+
+ // The register's value is unchanged from its value in the caller.
+ case DW_CFA_same_value: {
+ if (!ParseOperands("r", &ops) ||
+ !DoRule(ops.register_number, new SameValueRule()))
+ return false;
+ break;
+ }
+
+ // Find a register at an offset from the CFA.
+ case DW_CFA_offset_extended:
+ if (!ParseOperands("ro", &ops) ||
+ !DoOffset(ops.register_number,
+ ops.offset * cie->data_alignment_factor))
+ return false;
+ break;
+
+ // The register is saved at an offset from the CFA.
+ case DW_CFA_offset_extended_sf:
+ if (!ParseOperands("rs", &ops) ||
+ !DoOffset(ops.register_number,
+ ops.signed_offset * cie->data_alignment_factor))
+ return false;
+ break;
+
+ // The register is saved at an offset from the CFA.
+ case DW_CFA_GNU_negative_offset_extended:
+ if (!ParseOperands("ro", &ops) ||
+ !DoOffset(ops.register_number,
+ -ops.offset * cie->data_alignment_factor))
+ return false;
+ break;
+
+ // The register's value is the sum of the CFA plus an offset.
+ case DW_CFA_val_offset:
+ if (!ParseOperands("ro", &ops) ||
+ !DoValOffset(ops.register_number,
+ ops.offset * cie->data_alignment_factor))
+ return false;
+ break;
+
+ // The register's value is the sum of the CFA plus an offset.
+ case DW_CFA_val_offset_sf:
+ if (!ParseOperands("rs", &ops) ||
+ !DoValOffset(ops.register_number,
+ ops.signed_offset * cie->data_alignment_factor))
+ return false;
+ break;
+
+ // The register has been saved in another register.
+ case DW_CFA_register: {
+ if (!ParseOperands("ro", &ops) ||
+ !DoRule(ops.register_number, new RegisterRule(ops.offset)))
+ return false;
+ break;
+ }
+
+ // An expression yields the address at which the register is saved.
+ case DW_CFA_expression: {
+ if (!ParseOperands("re", &ops) ||
+ !DoRule(ops.register_number, new ExpressionRule(ops.expression)))
+ return false;
+ break;
+ }
+
+ // An expression yields the caller's value for the register.
+ case DW_CFA_val_expression: {
+ if (!ParseOperands("re", &ops) ||
+ !DoRule(ops.register_number, new ValExpressionRule(ops.expression)))
+ return false;
+ break;
+ }
+
+ // Restore the rule established for a register by the CIE.
+ case DW_CFA_restore_extended:
+ if (!ParseOperands("r", &ops) ||
+ !DoRestore( ops.register_number))
+ return false;
+ break;
+
+ // Save the current set of rules on a stack.
+ case DW_CFA_remember_state:
+ saved_rules_.push(rules_);
+ break;
+
+ // Pop the current set of rules off the stack.
+ case DW_CFA_restore_state: {
+ if (saved_rules_.empty()) {
+ reporter_->EmptyStateStack(entry_->offset, entry_->kind,
+ CursorOffset());
+ return false;
+ }
+ const RuleMap &new_rules = saved_rules_.top();
+ if (rules_.CFARule() && !new_rules.CFARule()) {
+ reporter_->ClearingCFARule(entry_->offset, entry_->kind,
+ CursorOffset());
+ return false;
+ }
+ rules_.HandleTransitionTo(handler_, address_, new_rules);
+ rules_ = new_rules;
+ saved_rules_.pop();
+ break;
+ }
+
+ // No operation. (Padding instruction.)
+ case DW_CFA_nop:
+ break;
+
+ // A SPARC register window save: Registers 8 through 15 (%o0-%o7)
+ // are saved in registers 24 through 31 (%i0-%i7), and registers
+ // 16 through 31 (%l0-%l7 and %i0-%i7) are saved at CFA offsets
+ // (0-15 * the register size). The register numbers must be
+ // hard-coded. A GNU extension, and not a pretty one.
+ case DW_CFA_GNU_window_save: {
+ // Save %o0-%o7 in %i0-%i7.
+ for (int i = 8; i < 16; i++)
+ if (!DoRule(i, new RegisterRule(i + 16)))
+ return false;
+ // Save %l0-%l7 and %i0-%i7 at the CFA.
+ for (int i = 16; i < 32; i++)
+ // Assume that the byte reader's address size is the same as
+ // the architecture's register size. !@#%*^ hilarious.
+ if (!DoRule(i, new OffsetRule(Handler::kCFARegister,
+ (i - 16) * reader_->AddressSize())))
+ return false;
+ break;
+ }
+
+ // I'm not sure what this is. GDB doesn't use it for unwinding.
+ case DW_CFA_GNU_args_size:
+ if (!ParseOperands("o", &ops)) return false;
+ break;
+
+ // An opcode we don't recognize.
+ default: {
+ reporter_->BadInstruction(entry_->offset, entry_->kind, CursorOffset());
+ return false;
+ }
+ }
+
+ return true;
+}
+
+bool CallFrameInfo::State::DoDefCFA(unsigned base_register, long offset) {
+ Rule *rule = new ValOffsetRule(base_register, offset);
+ rules_.SetCFARule(rule);
+ return rule->Handle(handler_, address_,
+ Handler::kCFARegister);
+}
+
+bool CallFrameInfo::State::DoDefCFAOffset(long offset) {
+ Rule *cfa_rule = rules_.CFARule();
+ if (!cfa_rule) {
+ reporter_->NoCFARule(entry_->offset, entry_->kind, CursorOffset());
+ return false;
+ }
+ cfa_rule->SetOffset(offset);
+ return cfa_rule->Handle(handler_, address_,
+ Handler::kCFARegister);
+}
+
+bool CallFrameInfo::State::DoRule(unsigned reg, Rule *rule) {
+ rules_.SetRegisterRule(reg, rule);
+ return rule->Handle(handler_, address_, reg);
+}
+
+bool CallFrameInfo::State::DoOffset(unsigned reg, long offset) {
+ if (!rules_.CFARule()) {
+ reporter_->NoCFARule(entry_->offset, entry_->kind, CursorOffset());
+ return false;
+ }
+ return DoRule(reg,
+ new OffsetRule(Handler::kCFARegister, offset));
+}
+
+bool CallFrameInfo::State::DoValOffset(unsigned reg, long offset) {
+ if (!rules_.CFARule()) {
+ reporter_->NoCFARule(entry_->offset, entry_->kind, CursorOffset());
+ return false;
+ }
+ return DoRule(reg,
+ new ValOffsetRule(Handler::kCFARegister, offset));
+}
+
+bool CallFrameInfo::State::DoRestore(unsigned reg) {
+ // DW_CFA_restore and DW_CFA_restore_extended don't make sense in a CIE.
+ if (entry_->kind == kCIE) {
+ reporter_->RestoreInCIE(entry_->offset, CursorOffset());
+ return false;
+ }
+ Rule *rule = cie_rules_.RegisterRule(reg);
+ if (!rule) {
+ // This isn't really the right thing to do, but since CFI generally
+ // only mentions callee-saves registers, and GCC's convention for
+ // callee-saves registers is that they are unchanged, it's a good
+ // approximation.
+ rule = new SameValueRule();
+ }
+ return DoRule(reg, rule);
+}
+
+bool CallFrameInfo::ReadEntryPrologue(const char *cursor, Entry *entry) {
+ const char *buffer_end = buffer_ + buffer_length_;
+
+ // Initialize enough of ENTRY for use in error reporting.
+ entry->offset = cursor - buffer_;
+ entry->start = cursor;
+ entry->kind = kUnknown;
+ entry->end = NULL;
+
+ // Read the initial length. This sets reader_'s offset size.
+ size_t length_size;
+ uint64 length = reader_->ReadInitialLength(cursor, &length_size);
+ if (length_size > size_t(buffer_end - cursor))
+ return ReportIncomplete(entry);
+ cursor += length_size;
+
+ // In a .eh_frame section, a length of zero marks the end of the series
+ // of entries.
+ if (length == 0 && eh_frame_) {
+ entry->kind = kTerminator;
+ entry->end = cursor;
+ return true;
+ }
+
+ // Validate the length.
+ if (length > size_t(buffer_end - cursor))
+ return ReportIncomplete(entry);
+
+ // The length is the number of bytes after the initial length field;
+ // we have that position handy at this point, so compute the end
+ // now. (If we're parsing 64-bit-offset DWARF on a 32-bit machine,
+ // and the length didn't fit in a size_t, we would have rejected it
+ // above.)
+ entry->end = cursor + length;
+
+ // Parse the next field: either the offset of a CIE or a CIE id.
+ size_t offset_size = reader_->OffsetSize();
+ if (offset_size > size_t(entry->end - cursor)) return ReportIncomplete(entry);
+ entry->id = reader_->ReadOffset(cursor);
+
+ // Don't advance cursor past id field yet; in .eh_frame data we need
+ // the id's position to compute the section offset of an FDE's CIE.
+
+ // Now we can decide what kind of entry this is.
+ if (eh_frame_) {
+ // In .eh_frame data, an ID of zero marks the entry as a CIE, and
+ // anything else is an offset from the id field of the FDE to the start
+ // of the CIE.
+ if (entry->id == 0) {
+ entry->kind = kCIE;
+ } else {
+ entry->kind = kFDE;
+ // Turn the offset from the id into an offset from the buffer's start.
+ entry->id = (cursor - buffer_) - entry->id;
+ }
+ } else {
+ // In DWARF CFI data, an ID of ~0 (of the appropriate width, given the
+ // offset size for the entry) marks the entry as a CIE, and anything
+ // else is the offset of the CIE from the beginning of the section.
+ if (offset_size == 4)
+ entry->kind = (entry->id == 0xffffffff) ? kCIE : kFDE;
+ else {
+ assert(offset_size == 8);
+ entry->kind = (entry->id == 0xffffffffffffffffULL) ? kCIE : kFDE;
+ }
+ }
+
+ // Now advance cursor past the id.
+ cursor += offset_size;
+
+ // The fields specific to this kind of entry start here.
+ entry->fields = cursor;
+
+ entry->cie = NULL;
+
+ return true;
+}
+
+bool CallFrameInfo::ReadCIEFields(CIE *cie) {
+ const char *cursor = cie->fields;
+ size_t len;
+
+ assert(cie->kind == kCIE);
+
+ // Prepare for early exit.
+ cie->version = 0;
+ cie->augmentation.clear();
+ cie->code_alignment_factor = 0;
+ cie->data_alignment_factor = 0;
+ cie->return_address_register = 0;
+ cie->has_z_augmentation = false;
+ cie->pointer_encoding = DW_EH_PE_absptr;
+ cie->instructions = 0;
+
+ // Parse the version number.
+ if (cie->end - cursor < 1)
+ return ReportIncomplete(cie);
+ cie->version = reader_->ReadOneByte(cursor);
+ 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;
+ // the difference between those versions seems to be the same as for
+ // .debug_frame.
+ if (cie->version < 1 || cie->version > 3) {
+ 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);
+ if (! augmentation_end) return ReportIncomplete(cie);
+ cursor = static_cast<const char *>(augmentation_end);
+ cie->augmentation = string(augmentation_start,
+ cursor - augmentation_start);
+ // Skip the terminating '\0'.
+ cursor++;
+
+ // Is this CFI augmented?
+ if (!cie->augmentation.empty()) {
+ // Is it an augmentation we recognize?
+ if (cie->augmentation[0] == DW_Z_augmentation_start) {
+ // Linux C++ ABI 'z' augmentation, used for exception handling data.
+ cie->has_z_augmentation = true;
+ } else {
+ // Not an augmentation we recognize. Augmentations can have arbitrary
+ // effects on the form of rest of the content, so we have to give up.
+ reporter_->UnrecognizedAugmentation(cie->offset, cie->augmentation);
+ 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) {
+ if (cursor >= cie->end) return ReportIncomplete(cie);
+ cie->return_address_register = uint8(*cursor++);
+ } else {
+ cie->return_address_register = reader_->ReadUnsignedLEB128(cursor, &len);
+ if (size_t(cie->end - cursor) < len) return ReportIncomplete(cie);
+ cursor += len;
+ }
+
+ // If we have a 'z' augmentation string, find the augmentation data and
+ // use the augmentation string to parse it.
+ if (cie->has_z_augmentation) {
+ uint64_t data_size = reader_->ReadUnsignedLEB128(cursor, &len);
+ if (size_t(cie->end - cursor) < len + data_size)
+ return ReportIncomplete(cie);
+ cursor += len;
+ const char *data = cursor;
+ cursor += data_size;
+ const char *data_end = cursor;
+
+ cie->has_z_lsda = false;
+ cie->has_z_personality = false;
+ cie->has_z_signal_frame = false;
+
+ // Walk the augmentation string, and extract values from the
+ // augmentation data as the string directs.
+ for (size_t i = 1; i < cie->augmentation.size(); i++) {
+ switch (cie->augmentation[i]) {
+ case DW_Z_has_LSDA:
+ // The CIE's augmentation data holds the language-specific data
+ // area pointer's encoding, and the FDE's augmentation data holds
+ // the pointer itself.
+ cie->has_z_lsda = true;
+ // Fetch the LSDA encoding from the augmentation data.
+ if (data >= data_end) return ReportIncomplete(cie);
+ cie->lsda_encoding = DwarfPointerEncoding(*data++);
+ if (!reader_->ValidEncoding(cie->lsda_encoding)) {
+ reporter_->InvalidPointerEncoding(cie->offset, cie->lsda_encoding);
+ return false;
+ }
+ // Don't check if the encoding is usable here --- we haven't
+ // read the FDE's fields yet, so we're not prepared for
+ // DW_EH_PE_funcrel, although that's a fine encoding for the
+ // LSDA to use, since it appears in the FDE.
+ break;
+
+ case DW_Z_has_personality_routine:
+ // The CIE's augmentation data holds the personality routine
+ // pointer's encoding, followed by the pointer itself.
+ cie->has_z_personality = true;
+ // Fetch the personality routine pointer's encoding from the
+ // augmentation data.
+ if (data >= data_end) return ReportIncomplete(cie);
+ cie->personality_encoding = DwarfPointerEncoding(*data++);
+ if (!reader_->ValidEncoding(cie->personality_encoding)) {
+ reporter_->InvalidPointerEncoding(cie->offset,
+ cie->personality_encoding);
+ return false;
+ }
+ if (!reader_->UsableEncoding(cie->personality_encoding)) {
+ reporter_->UnusablePointerEncoding(cie->offset,
+ cie->personality_encoding);
+ return false;
+ }
+ // Fetch the personality routine's pointer itself from the data.
+ cie->personality_address =
+ reader_->ReadEncodedPointer(data, cie->personality_encoding,
+ &len);
+ if (len > size_t(data_end - data))
+ return ReportIncomplete(cie);
+ data += len;
+ break;
+
+ case DW_Z_has_FDE_address_encoding:
+ // The CIE's augmentation data holds the pointer encoding to use
+ // for addresses in the FDE.
+ if (data >= data_end) return ReportIncomplete(cie);
+ cie->pointer_encoding = DwarfPointerEncoding(*data++);
+ if (!reader_->ValidEncoding(cie->pointer_encoding)) {
+ reporter_->InvalidPointerEncoding(cie->offset,
+ cie->pointer_encoding);
+ return false;
+ }
+ if (!reader_->UsableEncoding(cie->pointer_encoding)) {
+ reporter_->UnusablePointerEncoding(cie->offset,
+ cie->pointer_encoding);
+ return false;
+ }
+ break;
+
+ case DW_Z_is_signal_trampoline:
+ // Frames using this CIE are signal delivery frames.
+ cie->has_z_signal_frame = true;
+ break;
+
+ default:
+ // An augmentation we don't recognize.
+ reporter_->UnrecognizedAugmentation(cie->offset, cie->augmentation);
+ return false;
+ }
+ }
+ }
+
+ // The CIE's instructions start here.
+ cie->instructions = cursor;
+
+ return true;
+}
+
+bool CallFrameInfo::ReadFDEFields(FDE *fde) {
+ const char *cursor = fde->fields;
+ size_t size;
+
+ fde->address = reader_->ReadEncodedPointer(cursor, fde->cie->pointer_encoding,
+ &size);
+ if (size > size_t(fde->end - cursor))
+ return ReportIncomplete(fde);
+ cursor += size;
+ reader_->SetFunctionBase(fde->address);
+
+ // For the length, we strip off the upper nybble of the encoding used for
+ // the starting address.
+ DwarfPointerEncoding length_encoding =
+ DwarfPointerEncoding(fde->cie->pointer_encoding & 0x0f);
+ fde->size = reader_->ReadEncodedPointer(cursor, length_encoding, &size);
+ if (size > size_t(fde->end - cursor))
+ return ReportIncomplete(fde);
+ cursor += size;
+
+ // If the CIE has a 'z' augmentation string, then augmentation data
+ // appears here.
+ if (fde->cie->has_z_augmentation) {
+ uint64_t data_size = reader_->ReadUnsignedLEB128(cursor, &size);
+ if (size_t(fde->end - cursor) < size + data_size)
+ return ReportIncomplete(fde);
+ cursor += size;
+
+ // In the abstract, we should walk the augmentation string, and extract
+ // items from the FDE's augmentation data as we encounter augmentation
+ // string characters that specify their presence: the ordering of items
+ // in the augmentation string determines the arrangement of values in
+ // the augmentation data.
+ //
+ // In practice, there's only ever one value in FDE augmentation data
+ // that we support --- the LSDA pointer --- and we have to bail if we
+ // see any unrecognized augmentation string characters. So if there is
+ // anything here at all, we know what it is, and where it starts.
+ if (fde->cie->has_z_lsda) {
+ // Check whether the LSDA's pointer encoding is usable now: only once
+ // we've parsed the FDE's starting address do we call reader_->
+ // SetFunctionBase, so that the DW_EH_PE_funcrel encoding becomes
+ // usable.
+ if (!reader_->UsableEncoding(fde->cie->lsda_encoding)) {
+ reporter_->UnusablePointerEncoding(fde->cie->offset,
+ fde->cie->lsda_encoding);
+ return false;
+ }
+
+ fde->lsda_address =
+ reader_->ReadEncodedPointer(cursor, fde->cie->lsda_encoding, &size);
+ if (size > data_size)
+ return ReportIncomplete(fde);
+ // Ideally, we would also complain here if there were unconsumed
+ // augmentation data.
+ }
+
+ cursor += data_size;
+ }
+
+ // The FDE's instructions start after those.
+ fde->instructions = cursor;
+
+ return true;
+}
+
+bool CallFrameInfo::Start() {
+ const char *buffer_end = buffer_ + buffer_length_;
+ const char *cursor;
+ bool all_ok = true;
+ const char *entry_end;
+ bool ok;
+
+ // Traverse all the entries in buffer_, skipping CIEs and offering
+ // FDEs to the handler.
+ for (cursor = buffer_; cursor < buffer_end;
+ cursor = entry_end, all_ok = all_ok && ok) {
+ FDE fde;
+
+ // Make it easy to skip this entry with 'continue': assume that
+ // things are not okay until we've checked all the data, and
+ // prepare the address of the next entry.
+ ok = false;
+
+ // Read the entry's prologue.
+ if (!ReadEntryPrologue(cursor, &fde)) {
+ if (!fde.end) {
+ // If we couldn't even figure out this entry's extent, then we
+ // must stop processing entries altogether.
+ all_ok = false;
+ break;
+ }
+ entry_end = fde.end;
+ continue;
+ }
+
+ // The next iteration picks up after this entry.
+ entry_end = fde.end;
+
+ // Did we see an .eh_frame terminating mark?
+ if (fde.kind == kTerminator) {
+ // If there appears to be more data left in the section after the
+ // terminating mark, warn the user. But this is just a warning;
+ // we leave all_ok true.
+ if (fde.end < buffer_end) reporter_->EarlyEHTerminator(fde.offset);
+ break;
+ }
+
+ // In this loop, we skip CIEs. We only parse them fully when we
+ // parse an FDE that refers to them. This limits our memory
+ // consumption (beyond the buffer itself) to that needed to
+ // process the largest single entry.
+ if (fde.kind != kFDE) {
+ ok = true;
+ continue;
+ }
+
+ // Validate the CIE pointer.
+ if (fde.id > buffer_length_) {
+ reporter_->CIEPointerOutOfRange(fde.offset, fde.id);
+ continue;
+ }
+
+ CIE cie;
+
+ // Parse this FDE's CIE header.
+ if (!ReadEntryPrologue(buffer_ + fde.id, &cie))
+ continue;
+ // This had better be an actual CIE.
+ if (cie.kind != kCIE) {
+ reporter_->BadCIEId(fde.offset, fde.id);
+ continue;
+ }
+ if (!ReadCIEFields(&cie))
+ continue;
+
+ // We now have the values that govern both the CIE and the FDE.
+ cie.cie = &cie;
+ fde.cie = &cie;
+
+ // Parse the FDE's header.
+ if (!ReadFDEFields(&fde))
+ continue;
+
+ // Call Entry to ask the consumer if they're interested.
+ if (!handler_->Entry(fde.offset, fde.address, fde.size,
+ cie.version, cie.augmentation,
+ cie.return_address_register)) {
+ // The handler isn't interested in this entry. That's not an error.
+ ok = true;
+ continue;
+ }
+
+ if (cie.has_z_augmentation) {
+ // Report the personality routine address, if we have one.
+ if (cie.has_z_personality) {
+ if (!handler_
+ ->PersonalityRoutine(cie.personality_address,
+ IsIndirectEncoding(cie.personality_encoding)))
+ continue;
+ }
+
+ // Report the language-specific data area address, if we have one.
+ if (cie.has_z_lsda) {
+ if (!handler_
+ ->LanguageSpecificDataArea(fde.lsda_address,
+ IsIndirectEncoding(cie.lsda_encoding)))
+ continue;
+ }
+
+ // If this is a signal-handling frame, report that.
+ if (cie.has_z_signal_frame) {
+ if (!handler_->SignalHandler())
+ continue;
+ }
+ }
+
+ // Interpret the CIE's instructions, and then the FDE's instructions.
+ State state(reader_, handler_, reporter_, fde.address);
+ ok = state.InterpretCIE(cie) && state.InterpretFDE(fde);
+
+ // Tell the ByteReader that the function start address from the
+ // FDE header is no longer valid.
+ reader_->ClearFunctionBase();
+
+ // Report the end of the entry.
+ handler_->End();
+ }
+
+ return all_ok;
+}
+
+const char *CallFrameInfo::KindName(EntryKind kind) {
+ if (kind == CallFrameInfo::kUnknown)
+ return "entry";
+ else if (kind == CallFrameInfo::kCIE)
+ return "common information entry";
+ else if (kind == CallFrameInfo::kFDE)
+ return "frame description entry";
+ else {
+ assert (kind == CallFrameInfo::kTerminator);
+ return ".eh_frame sequence terminator";
+ }
+}
+
+bool CallFrameInfo::ReportIncomplete(Entry *entry) {
+ reporter_->Incomplete(entry->offset, entry->kind);
+ return false;
+}
+
+void CallFrameInfo::Reporter::Incomplete(uint64 offset,
+ CallFrameInfo::EntryKind kind) {
+ fprintf(stderr,
+ "%s: CFI %s at offset 0x%llx in '%s': entry ends early\n",
+ filename_.c_str(), CallFrameInfo::KindName(kind), offset,
+ section_.c_str());
+}
+
+void CallFrameInfo::Reporter::EarlyEHTerminator(uint64 offset) {
+ fprintf(stderr,
+ "%s: CFI at offset 0x%llx in '%s': saw end-of-data marker"
+ " before end of section contents\n",
+ filename_.c_str(), offset, section_.c_str());
+}
+
+void CallFrameInfo::Reporter::CIEPointerOutOfRange(uint64 offset,
+ uint64 cie_offset) {
+ fprintf(stderr,
+ "%s: CFI frame description entry at offset 0x%llx in '%s':"
+ " CIE pointer is out of range: 0x%llx\n",
+ filename_.c_str(), offset, section_.c_str(), cie_offset);
+}
+
+void CallFrameInfo::Reporter::BadCIEId(uint64 offset, uint64 cie_offset) {
+ fprintf(stderr,
+ "%s: CFI frame description entry at offset 0x%llx in '%s':"
+ " CIE pointer does not point to a CIE: 0x%llx\n",
+ filename_.c_str(), offset, section_.c_str(), cie_offset);
+}
+
+void CallFrameInfo::Reporter::UnrecognizedVersion(uint64 offset, int version) {
+ fprintf(stderr,
+ "%s: CFI frame description entry at offset 0x%llx in '%s':"
+ " CIE specifies unrecognized version: %d\n",
+ filename_.c_str(), offset, section_.c_str(), version);
+}
+
+void CallFrameInfo::Reporter::UnrecognizedAugmentation(uint64 offset,
+ const string &aug) {
+ fprintf(stderr,
+ "%s: CFI frame description entry at offset 0x%llx in '%s':"
+ " CIE specifies unrecognized augmentation: '%s'\n",
+ filename_.c_str(), offset, section_.c_str(), aug.c_str());
+}
+
+void CallFrameInfo::Reporter::InvalidPointerEncoding(uint64 offset,
+ uint8 encoding) {
+ fprintf(stderr,
+ "%s: CFI common information entry at offset 0x%llx in '%s':"
+ " 'z' augmentation specifies invalid pointer encoding: 0x%02x\n",
+ filename_.c_str(), offset, section_.c_str(), encoding);
+}
+
+void CallFrameInfo::Reporter::UnusablePointerEncoding(uint64 offset,
+ uint8 encoding) {
+ fprintf(stderr,
+ "%s: CFI common information entry at offset 0x%llx in '%s':"
+ " 'z' augmentation specifies a pointer encoding for which"
+ " we have no base address: 0x%02x\n",
+ filename_.c_str(), offset, section_.c_str(), encoding);
+}
+
+void CallFrameInfo::Reporter::RestoreInCIE(uint64 offset, uint64 insn_offset) {
+ fprintf(stderr,
+ "%s: CFI common information entry at offset 0x%llx in '%s':"
+ " the DW_CFA_restore instruction at offset 0x%llx"
+ " cannot be used in a common information entry\n",
+ filename_.c_str(), offset, section_.c_str(), insn_offset);
+}
+
+void CallFrameInfo::Reporter::BadInstruction(uint64 offset,
+ CallFrameInfo::EntryKind kind,
+ uint64 insn_offset) {
+ fprintf(stderr,
+ "%s: CFI %s at offset 0x%llx in section '%s':"
+ " the instruction at offset 0x%llx is unrecognized\n",
+ filename_.c_str(), CallFrameInfo::KindName(kind),
+ offset, section_.c_str(), insn_offset);
+}
+
+void CallFrameInfo::Reporter::NoCFARule(uint64 offset,
+ CallFrameInfo::EntryKind kind,
+ uint64 insn_offset) {
+ fprintf(stderr,
+ "%s: CFI %s at offset 0x%llx in section '%s':"
+ " the instruction at offset 0x%llx assumes that a CFA rule has"
+ " been set, but none has been set\n",
+ filename_.c_str(), CallFrameInfo::KindName(kind), offset,
+ section_.c_str(), insn_offset);
+}
+
+void CallFrameInfo::Reporter::EmptyStateStack(uint64 offset,
+ CallFrameInfo::EntryKind kind,
+ uint64 insn_offset) {
+ fprintf(stderr,
+ "%s: CFI %s at offset 0x%llx in section '%s':"
+ " the DW_CFA_restore_state instruction at offset 0x%llx"
+ " should pop a saved state from the stack, but the stack is empty\n",
+ filename_.c_str(), CallFrameInfo::KindName(kind), offset,
+ section_.c_str(), insn_offset);
+}
+
+void CallFrameInfo::Reporter::ClearingCFARule(uint64 offset,
+ CallFrameInfo::EntryKind kind,
+ uint64 insn_offset) {
+ fprintf(stderr,
+ "%s: CFI %s at offset 0x%llx in section '%s':"
+ " the DW_CFA_restore_state instruction at offset 0x%llx"
+ " would clear the CFA rule in effect\n",
+ filename_.c_str(), CallFrameInfo::KindName(kind), offset,
+ section_.c_str(), insn_offset);
+}
+
+} // namespace dwarf2reader
diff --git a/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.h b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.h
new file mode 100644
index 0000000..ecf4eb2
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf/dwarf2reader.h
@@ -0,0 +1,1051 @@
+// -*- 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.
+
+// CFI reader author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
+
+// This file contains definitions related to the DWARF2/3 reader and
+// it's handler interfaces.
+// The DWARF2/3 specification can be found at
+// http://dwarf.freestandards.org and should be considered required
+// reading if you wish to modify the implementation.
+// Only a cursory attempt is made to explain terminology that is
+// used here, as it is much better explained in the standard documents
+#ifndef COMMON_DWARF_DWARF2READER_H__
+#define COMMON_DWARF_DWARF2READER_H__
+
+#include <list>
+#include <map>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "common/dwarf/bytereader.h"
+#include "common/dwarf/dwarf2enums.h"
+#include "common/dwarf/types.h"
+#include "common/using_std_string.h"
+
+namespace dwarf2reader {
+struct LineStateMachine;
+class Dwarf2Handler;
+class LineInfoHandler;
+
+// 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::list<std::pair<enum DwarfAttribute, enum DwarfForm> >
+ AttributeList;
+typedef AttributeList::iterator AttributeIterator;
+typedef AttributeList::const_iterator ConstAttributeIterator;
+
+struct LineInfoHeader {
+ uint64 total_length;
+ uint16 version;
+ uint64 prologue_length;
+ uint8 min_insn_length; // insn stands for instructin
+ bool default_is_stmt; // stmt stands for statement
+ int8 line_base;
+ uint8 line_range;
+ uint8 opcode_base;
+ // Use a pointer so that signalsafe_addr2line is able to use this structure
+ // without heap allocation problem.
+ std::vector<unsigned char> *std_opcode_lengths;
+};
+
+class LineInfo {
+ public:
+
+ // Initializes a .debug_line reader. Buffer and buffer length point
+ // 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,
+ ByteReader* reader, LineInfoHandler* handler);
+
+ virtual ~LineInfo() {
+ if (header_.std_opcode_lengths) {
+ delete header_.std_opcode_lengths;
+ }
+ }
+
+ // Start processing line info, and calling callbacks in the handler.
+ // Consumes the line number information for a single compilation unit.
+ // Returns the number of bytes processed.
+ uint64 Start();
+
+ // Process a single line info opcode at START using the state
+ // machine at LSM. Return true if we should define a line using the
+ // current state of the line state machine. Place the length of the
+ // opcode in LEN.
+ // If LSM_PASSES_PC is non-NULL, this function also checks if the lsm
+ // passes the address of PC. In other words, LSM_PASSES_PC will be
+ // set to true, if the following condition is met.
+ //
+ // lsm's old address < PC <= lsm's new address
+ static bool ProcessOneOpcode(ByteReader* reader,
+ LineInfoHandler* handler,
+ const struct LineInfoHeader &header,
+ const char* start,
+ struct LineStateMachine* lsm,
+ size_t* len,
+ uintptr pc,
+ bool *lsm_passes_pc);
+
+ private:
+ // Reads the DWARF2/3 header for this line info.
+ void ReadHeader();
+
+ // Reads the DWARF2/3 line information
+ void ReadLines();
+
+ // The associated handler to call processing functions in
+ LineInfoHandler* handler_;
+
+ // The associated ByteReader that handles endianness issues for us
+ ByteReader* reader_;
+
+ // A DWARF2/3 line info header. This is not the same size as
+ // in the actual file, as the one in the file may have a 32 bit or
+ // 64 bit lengths
+
+ struct LineInfoHeader header_;
+
+ // 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_;
+ uint64 buffer_length_;
+ const char* after_header_;
+};
+
+// This class is the main interface between the line info reader and
+// the client. The virtual functions inside this get called for
+// interesting events that happen during line info reading. The
+// default implementation does nothing
+
+class LineInfoHandler {
+ public:
+ LineInfoHandler() { }
+
+ virtual ~LineInfoHandler() { }
+
+ // Called when we define a directory. NAME is the directory name,
+ // DIR_NUM is the directory number
+ virtual void DefineDir(const string& name, uint32 dir_num) { }
+
+ // Called when we define a filename. NAME is the filename, FILE_NUM
+ // is the file number which is -1 if the file index is the next
+ // index after the last numbered index (this happens when files are
+ // dynamically defined by the line program), DIR_NUM is the
+ // directory index for the directory name of this file, MOD_TIME is
+ // the modification time of the file, and LENGTH is the length of
+ // the file
+ 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) { }
+};
+
+// 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
+// "compilation unit". Most of the time, there is one compilation
+// unit in the .debug_info section for each file that had debug info
+// generated.
+// Each DIE consists of
+
+// 1. a tag specifying a thing that is being described (ie
+// DW_TAG_subprogram for functions, DW_TAG_variable for variables, etc
+// 2. attributes (such as DW_AT_location for location in memory,
+// DW_AT_name for name), and data for each attribute.
+// 3. A flag saying whether the DIE has children or not
+
+// In order to gain some amount of compression, the format of
+// each DIE (tag name, attributes and data forms for the attributes)
+// are stored in a separate table called the "abbreviation table".
+// This is done because a large number of DIEs have the exact same tag
+// and list of attributes, but different data for those attributes.
+// As a result, the .debug_info section is just a stream of data, and
+// requires reading of the .debug_abbrev section to say what the data
+// means.
+
+// As a warning to the user, it should be noted that the reason for
+// using absolute offsets from the beginning of .debug_info is that
+// DWARF2/3 supports referencing DIE's from other DIE's by their offset
+// from either the current compilation unit start, *or* the beginning
+// of the .debug_info section. This means it is possible to reference
+// a DIE in one compilation unit from a DIE in another compilation
+// unit. This style of reference is usually used to eliminate
+// duplicated information that occurs across compilation
+// units, such as base types, etc. GCC 3.4+ support this with
+// -feliminate-dwarf2-dups. Other toolchains will sometimes do
+// duplicate elimination in the linker.
+
+class CompilationUnit {
+ public:
+
+ // 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,
+ ByteReader* reader, Dwarf2Handler* handler);
+ virtual ~CompilationUnit() {
+ if (abbrevs_) delete abbrevs_;
+ }
+
+ // Begin reading a Dwarf2 compilation unit, and calling the
+ // callbacks in the Dwarf2Handler
+
+ // Return the full length of the compilation unit, including
+ // headers. This plus the starting offset passed to the constructor
+ // is the offset of the end of the compilation unit --- and the
+ // start of the next compilation unit, if there is one.
+ uint64 Start();
+
+ private:
+
+ // This struct represents a single DWARF2/3 abbreviation
+ // The abbreviation tells how to read a DWARF2/3 DIE, and consist of a
+ // tag and a list of attributes, as well as the data form of each attribute.
+ struct Abbrev {
+ uint64 number;
+ enum DwarfTag tag;
+ bool has_children;
+ AttributeList attributes;
+ };
+
+ // A DWARF2/3 compilation unit header. This is not the same size as
+ // in the actual file, as the one in the file may have a 32 bit or
+ // 64 bit length.
+ struct CompilationUnitHeader {
+ uint64 length;
+ uint16 version;
+ uint64 abbrev_offset;
+ uint8 address_size;
+ } header_;
+
+ // Reads the DWARF2/3 header for this compilation unit.
+ void ReadHeader();
+
+ // Reads the DWARF2/3 abbreviations for this compilation unit
+ void ReadAbbrevs();
+
+ // 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);
+
+ // 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);
+
+ // 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);
+
+ // 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);
+
+ // Offset from section start is the offset of this compilation unit
+ // from the beginning of the .debug_info section.
+ uint64 offset_from_section_start_;
+
+ // 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_;
+ uint64 buffer_length_;
+ const char* after_header_;
+
+ // The associated ByteReader that handles endianness issues for us
+ ByteReader* reader_;
+
+ // The map of sections in our file to buffers containing their data
+ const SectionMap& sections_;
+
+ // The associated handler to call processing functions in
+ Dwarf2Handler* handler_;
+
+ // Set of DWARF2/3 abbreviations for this compilation unit. Indexed
+ // by abbreviation number, which means that abbrevs_[0] is not
+ // valid.
+ std::vector<Abbrev>* abbrevs_;
+
+ // 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_;
+ 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.
+
+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; }
+
+ // 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; }
+
+ // 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 char* 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) { }
+
+};
+
+// This class is a reader for DWARF's Call Frame Information. CFI
+// describes how to unwind stack frames --- even for functions that do
+// not follow fixed conventions for saving registers, whose frame size
+// varies as they execute, etc.
+//
+// CFI describes, at each machine instruction, how to compute the
+// stack frame's base address, how to find the return address, and
+// where to find the saved values of the caller's registers (if the
+// callee has stashed them somewhere to free up the registers for its
+// own use).
+//
+// For example, suppose we have a function whose machine code looks
+// like this (imagine an assembly language that looks like C, for a
+// machine with 32-bit registers, and a stack that grows towards lower
+// addresses):
+//
+// func: ; entry point; return address at sp
+// func+0: sp = sp - 16 ; allocate space for stack frame
+// func+1: sp[12] = r0 ; save r0 at sp+12
+// ... ; other code, not frame-related
+// func+10: sp -= 4; *sp = x ; push some x on the stack
+// ... ; other code, not frame-related
+// func+20: r0 = sp[16] ; restore saved r0
+// func+21: sp += 20 ; pop whole stack frame
+// func+22: pc = *sp; sp += 4 ; pop return address and jump to it
+//
+// DWARF CFI is (a very compressed representation of) a table with a
+// row for each machine instruction address and a column for each
+// register showing how to restore it, if possible.
+//
+// A special column named "CFA", for "Canonical Frame Address", tells how
+// to compute the base address of the frame; registers' entries may
+// refer to the CFA in describing where the registers are saved.
+//
+// Another special column, named "RA", represents the return address.
+//
+// For example, here is a complete (uncompressed) table describing the
+// function above:
+//
+// insn cfa r0 r1 ... ra
+// =======================================
+// func+0: sp cfa[0]
+// func+1: sp+16 cfa[0]
+// func+2: sp+16 cfa[-4] cfa[0]
+// func+11: sp+20 cfa[-4] cfa[0]
+// func+21: sp+20 cfa[0]
+// func+22: sp cfa[0]
+//
+// Some things to note here:
+//
+// - Each row describes the state of affairs *before* executing the
+// instruction at the given address. Thus, the row for func+0
+// describes the state before we allocate the stack frame. In the
+// next row, the formula for computing the CFA has changed,
+// reflecting that allocation.
+//
+// - The other entries are written in terms of the CFA; this allows
+// them to remain unchanged as the stack pointer gets bumped around.
+// For example, the rule for recovering the return address (the "ra"
+// column) remains unchanged throughout the function, even as the
+// stack pointer takes on three different offsets from the return
+// address.
+//
+// - Although we haven't shown it, most calling conventions designate
+// "callee-saves" and "caller-saves" registers. The callee must
+// preserve the values of callee-saves registers; if it uses them,
+// it must save their original values somewhere, and restore them
+// before it returns. In contrast, the callee is free to trash
+// caller-saves registers; if the callee uses these, it will
+// probably not bother to save them anywhere, and the CFI will
+// probably mark their values as "unrecoverable".
+//
+// (However, since the caller cannot assume the callee was going to
+// save them, caller-saves registers are probably dead in the caller
+// anyway, so compilers usually don't generate CFA for caller-saves
+// registers.)
+//
+// - Exactly where the CFA points is a matter of convention that
+// depends on the architecture and ABI in use. In the example, the
+// CFA is the value the stack pointer had upon entry to the
+// function, pointing at the saved return address. But on the x86,
+// the call frame information generated by GCC follows the
+// convention that the CFA is the address *after* the saved return
+// address.
+//
+// But by definition, the CFA remains constant throughout the
+// lifetime of the frame. This makes it a useful value for other
+// columns to refer to. It is also gives debuggers a useful handle
+// for identifying a frame.
+//
+// If you look at the table above, you'll notice that a given entry is
+// often the same as the one immediately above it: most instructions
+// change only one or two aspects of the stack frame, if they affect
+// it at all. The DWARF format takes advantage of this fact, and
+// reduces the size of the data by mentioning only the addresses and
+// columns at which changes take place. So for the above, DWARF CFI
+// data would only actually mention the following:
+//
+// insn cfa r0 r1 ... ra
+// =======================================
+// func+0: sp cfa[0]
+// func+1: sp+16
+// func+2: cfa[-4]
+// func+11: sp+20
+// func+21: r0
+// func+22: sp
+//
+// In fact, this is the way the parser reports CFI to the consumer: as
+// a series of statements of the form, "At address X, column Y changed
+// to Z," and related conventions for describing the initial state.
+//
+// Naturally, it would be impractical to have to scan the entire
+// program's CFI, noting changes as we go, just to recover the
+// unwinding rules in effect at one particular instruction. To avoid
+// this, CFI data is grouped into "entries", each of which covers a
+// specified range of addresses and begins with a complete statement
+// of the rules for all recoverable registers at that starting
+// address. Each entry typically covers a single function.
+//
+// Thus, to compute the contents of a given row of the table --- that
+// is, rules for recovering the CFA, RA, and registers at a given
+// instruction --- the consumer should find the entry that covers that
+// instruction's address, start with the initial state supplied at the
+// beginning of the entry, and work forward until it has processed all
+// the changes up to and including those for the present instruction.
+//
+// There are seven kinds of rules that can appear in an entry of the
+// table:
+//
+// - "undefined": The given register is not preserved by the callee;
+// its value cannot be recovered.
+//
+// - "same value": This register has the same value it did in the callee.
+//
+// - offset(N): The register is saved at offset N from the CFA.
+//
+// - val_offset(N): The value the register had in the caller is the
+// CFA plus offset N. (This is usually only useful for describing
+// the stack pointer.)
+//
+// - register(R): The register's value was saved in another register R.
+//
+// - expression(E): Evaluating the DWARF expression E using the
+// current frame's registers' values yields the address at which the
+// register was saved.
+//
+// - val_expression(E): Evaluating the DWARF expression E using the
+// current frame's registers' values yields the value the register
+// had in the caller.
+
+class CallFrameInfo {
+ public:
+ // The different kinds of entries one finds in CFI. Used internally,
+ // and for error reporting.
+ enum EntryKind { kUnknown, kCIE, kFDE, kTerminator };
+
+ // The handler class to which the parser hands the parsed call frame
+ // information. Defined below.
+ class Handler;
+
+ // A reporter class, which CallFrameInfo uses to report errors
+ // encountered while parsing call frame information. Defined below.
+ class Reporter;
+
+ // Create a DWARF CFI parser. BUFFER points to the contents of the
+ // .debug_frame section to parse; BUFFER_LENGTH is its length in bytes.
+ // REPORTER is an error reporter the parser should use to report
+ // problems. READER is a ByteReader instance that has the endianness and
+ // address size set properly. Report the data we find to HANDLER.
+ //
+ // This class can also parse Linux C++ exception handling data, as found
+ // in '.eh_frame' sections. This data is a variant of DWARF CFI that is
+ // placed in loadable segments so that it is present in the program's
+ // address space, and is interpreted by the C++ runtime to search the
+ // call stack for a handler interested in the exception being thrown,
+ // actually pop the frames, and find cleanup code to run.
+ //
+ // There are two differences between the call frame information described
+ // in the DWARF standard and the exception handling data Linux places in
+ // the .eh_frame section:
+ //
+ // - Exception handling data uses uses a different format for call frame
+ // information entry headers. The distinguished CIE id, the way FDEs
+ // refer to their CIEs, and the way the end of the series of entries is
+ // determined are all slightly different.
+ //
+ // If the constructor's EH_FRAME argument is true, then the
+ // CallFrameInfo parses the entry headers as Linux C++ exception
+ // handling data. If EH_FRAME is false or omitted, the CallFrameInfo
+ // parses standard DWARF call frame information.
+ //
+ // - Linux C++ exception handling data uses CIE augmentation strings
+ // beginning with 'z' to specify the presence of additional data after
+ // the CIE and FDE headers and special encodings used for addresses in
+ // frame description entries.
+ //
+ // CallFrameInfo can handle 'z' augmentations in either DWARF CFI or
+ // exception handling data if you have supplied READER with the base
+ // addresses needed to interpret the pointer encodings that 'z'
+ // augmentations can specify. See the ByteReader interface for details
+ // about the base addresses. See the CallFrameInfo::Handler interface
+ // for details about the additional information one might find in
+ // 'z'-augmented data.
+ //
+ // Thus:
+ //
+ // - If you are parsing standard DWARF CFI, as found in a .debug_frame
+ // section, you should pass false for the EH_FRAME argument, or omit
+ // it, and you need not worry about providing READER with the
+ // additional base addresses.
+ //
+ // - If you want to parse Linux C++ exception handling data from a
+ // .eh_frame section, you should pass EH_FRAME as true, and call
+ // READER's Set*Base member functions before calling our Start method.
+ //
+ // - If you want to parse DWARF CFI that uses the 'z' augmentations
+ // (although I don't think any toolchain ever emits such data), you
+ // could pass false for EH_FRAME, but call READER's Set*Base members.
+ //
+ // The extensions the Linux C++ ABI makes to DWARF for exception
+ // handling are described here, rather poorly:
+ // 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
+ //
+ // 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,
+ ByteReader *reader, Handler *handler, Reporter *reporter,
+ bool eh_frame = false)
+ : buffer_(buffer), buffer_length_(buffer_length),
+ reader_(reader), handler_(handler), reporter_(reporter),
+ eh_frame_(eh_frame) { }
+
+ ~CallFrameInfo() { }
+
+ // Parse the entries in BUFFER, reporting what we find to HANDLER.
+ // Return true if we reach the end of the section successfully, or
+ // false if we encounter an error.
+ bool Start();
+
+ // Return the textual name of KIND. For error reporting.
+ static const char *KindName(EntryKind kind);
+
+ private:
+
+ struct CIE;
+
+ // A CFI entry, either an FDE or a CIE.
+ struct Entry {
+ // The starting offset of the entry in the section, for error
+ // reporting.
+ size_t offset;
+
+ // The start of this entry in the buffer.
+ const char *start;
+
+ // Which kind of entry this is.
+ //
+ // We want to be able to use this for error reporting even while we're
+ // in the midst of parsing. Error reporting code may assume that kind,
+ // offset, and start fields are valid, although kind may be kUnknown.
+ EntryKind kind;
+
+ // 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;
+
+ // The start of this entry's instructions.
+ const char *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;
+
+ // 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.
+ uint64 id;
+
+ // The CIE that applies to this entry, if we've parsed it. If this is a
+ // CIE, then this field points to this structure.
+ CIE *cie;
+ };
+
+ // A common information entry (CIE).
+ struct CIE: public Entry {
+ uint8 version; // CFI data version number
+ string augmentation; // vendor format extension markers
+ uint64 code_alignment_factor; // scale for code address adjustments
+ int data_alignment_factor; // scale for stack pointer adjustments
+ unsigned return_address_register; // which register holds the return addr
+
+ // True if this CIE includes Linux C++ ABI 'z' augmentation data.
+ bool has_z_augmentation;
+
+ // Parsed 'z' augmentation data. These are meaningful only if
+ // has_z_augmentation is true.
+ bool has_z_lsda; // The 'z' augmentation included 'L'.
+ bool has_z_personality; // The 'z' augmentation included 'P'.
+ bool has_z_signal_frame; // The 'z' augmentation included 'S'.
+
+ // If has_z_lsda is true, this is the encoding to be used for language-
+ // specific data area pointers in FDEs.
+ DwarfPointerEncoding lsda_encoding;
+
+ // If has_z_personality is true, this is the encoding used for the
+ // personality routine pointer in the augmentation data.
+ DwarfPointerEncoding personality_encoding;
+
+ // If has_z_personality is true, this is the address of the personality
+ // routine --- or, if personality_encoding & DW_EH_PE_indirect, the
+ // address where the personality routine's address is stored.
+ uint64 personality_address;
+
+ // This is the encoding used for addresses in the FDE header and
+ // in DW_CFA_set_loc instructions. This is always valid, whether
+ // or not we saw a 'z' augmentation string; its default value is
+ // DW_EH_PE_absptr, which is what normal DWARF CFI uses.
+ DwarfPointerEncoding pointer_encoding;
+ };
+
+ // A frame description entry (FDE).
+ struct FDE: public Entry {
+ uint64 address; // start address of described code
+ uint64 size; // size of described code, in bytes
+
+ // If cie->has_z_lsda is true, then this is the language-specific data
+ // area's address --- or its address's address, if cie->lsda_encoding
+ // has the DW_EH_PE_indirect bit set.
+ uint64 lsda_address;
+ };
+
+ // Internal use.
+ class Rule;
+ class UndefinedRule;
+ class SameValueRule;
+ class OffsetRule;
+ class ValOffsetRule;
+ class RegisterRule;
+ class ExpressionRule;
+ class ValExpressionRule;
+ class RuleMap;
+ class State;
+
+ // Parse the initial length and id of a CFI entry, either a CIE, an FDE,
+ // or a .eh_frame end-of-data mark. CURSOR points to the beginning of the
+ // data to parse. On success, populate ENTRY as appropriate, and return
+ // 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);
+
+ // Parse the fields of a CIE after the entry prologue, including any 'z'
+ // augmentation data. Assume that the 'Entry' fields of CIE are
+ // populated; use CIE->fields and CIE->end as the start and limit for
+ // parsing. On success, populate the rest of *CIE, and return true; on
+ // failure, report the problem and return false.
+ bool ReadCIEFields(CIE *cie);
+
+ // Parse the fields of an FDE after the entry prologue, including any 'z'
+ // augmentation data. Assume that the 'Entry' fields of *FDE are
+ // initialized; use FDE->fields and FDE->end as the start and limit for
+ // parsing. Assume that FDE->cie is fully initialized. On success,
+ // populate the rest of *FDE, and return true; on failure, report the
+ // problem and return false.
+ bool ReadFDEFields(FDE *fde);
+
+ // Report that ENTRY is incomplete, and return false. This is just a
+ // trivial wrapper for invoking reporter_->Incomplete; it provides a
+ // little brevity.
+ bool ReportIncomplete(Entry *entry);
+
+ // Return true if ENCODING has the DW_EH_PE_indirect bit set.
+ static bool IsIndirectEncoding(DwarfPointerEncoding encoding) {
+ return encoding & DW_EH_PE_indirect;
+ }
+
+ // The contents of the DWARF .debug_info section we're parsing.
+ const char *buffer_;
+ size_t buffer_length_;
+
+ // For reading multi-byte values with the appropriate endianness.
+ ByteReader *reader_;
+
+ // The handler to which we should report the data we find.
+ Handler *handler_;
+
+ // For reporting problems in the info we're parsing.
+ Reporter *reporter_;
+
+ // True if we are processing .eh_frame-format data.
+ bool eh_frame_;
+};
+
+// The handler class for CallFrameInfo. The a CFI parser calls the
+// member functions of a handler object to report the data it finds.
+class CallFrameInfo::Handler {
+ public:
+ // The pseudo-register number for the canonical frame address.
+ enum { kCFARegister = -1 };
+
+ Handler() { }
+ virtual ~Handler() { }
+
+ // The parser has found CFI for the machine code at ADDRESS,
+ // extending for LENGTH bytes. OFFSET is the offset of the frame
+ // description entry in the section, for use in error messages.
+ // VERSION is the version number of the CFI format. AUGMENTATION is
+ // a string describing any producer-specific extensions present in
+ // the data. RETURN_ADDRESS is the number of the register that holds
+ // the address to which the function should return.
+ //
+ // Entry should return true to process this CFI, or false to skip to
+ // the next entry.
+ //
+ // The parser invokes Entry for each Frame Description Entry (FDE)
+ // it finds. The parser doesn't report Common Information Entries
+ // to the handler explicitly; instead, if the handler elects to
+ // process a given FDE, the parser reiterates the appropriate CIE's
+ // contents at the beginning of the FDE's rules.
+ virtual bool Entry(size_t offset, uint64 address, uint64 length,
+ uint8 version, const string &augmentation,
+ unsigned return_address) = 0;
+
+ // When the Entry function returns true, the parser calls these
+ // handler functions repeatedly to describe the rules for recovering
+ // registers at each instruction in the given range of machine code.
+ // Immediately after a call to Entry, the handler should assume that
+ // the rule for each callee-saves register is "unchanged" --- that
+ // is, that the register still has the value it had in the caller.
+ //
+ // If a *Rule function returns true, we continue processing this entry's
+ // instructions. If a *Rule function returns false, we stop evaluating
+ // instructions, and skip to the next entry. Either way, we call End
+ // before going on to the next entry.
+ //
+ // In all of these functions, if the REG parameter is kCFARegister, then
+ // the rule describes how to find the canonical frame address.
+ // kCFARegister may be passed as a BASE_REGISTER argument, meaning that
+ // the canonical frame address should be used as the base address for the
+ // computation. All other REG values will be positive.
+
+ // At ADDRESS, register REG's value is not recoverable.
+ virtual bool UndefinedRule(uint64 address, int reg) = 0;
+
+ // At ADDRESS, register REG's value is the same as that it had in
+ // the caller.
+ virtual bool SameValueRule(uint64 address, int reg) = 0;
+
+ // At ADDRESS, register REG has been saved at offset OFFSET from
+ // BASE_REGISTER.
+ virtual bool OffsetRule(uint64 address, int reg,
+ int base_register, long offset) = 0;
+
+ // At ADDRESS, the caller's value of register REG is the current
+ // value of BASE_REGISTER plus OFFSET. (This rule doesn't provide an
+ // address at which the register's value is saved.)
+ virtual bool ValOffsetRule(uint64 address, int reg,
+ int base_register, long offset) = 0;
+
+ // At ADDRESS, register REG has been saved in BASE_REGISTER. This differs
+ // from ValOffsetRule(ADDRESS, REG, BASE_REGISTER, 0), in that
+ // BASE_REGISTER is the "home" for REG's saved value: if you want to
+ // assign to a variable whose home is REG in the calling frame, you
+ // should put the value in BASE_REGISTER.
+ virtual bool RegisterRule(uint64 address, int reg, int base_register) = 0;
+
+ // At ADDRESS, the DWARF expression EXPRESSION yields the address at
+ // which REG was saved.
+ virtual bool ExpressionRule(uint64 address, int reg,
+ const string &expression) = 0;
+
+ // At ADDRESS, the DWARF expression EXPRESSION yields the caller's
+ // value for REG. (This rule doesn't provide an address at which the
+ // register's value is saved.)
+ virtual bool ValExpressionRule(uint64 address, int reg,
+ const string &expression) = 0;
+
+ // Indicate that the rules for the address range reported by the
+ // last call to Entry are complete. End should return true if
+ // everything is okay, or false if an error has occurred and parsing
+ // should stop.
+ virtual bool End() = 0;
+
+ // Handler functions for Linux C++ exception handling data. These are
+ // only called if the data includes 'z' augmentation strings.
+
+ // The Linux C++ ABI uses an extension of the DWARF CFI format to
+ // walk the stack to propagate exceptions from the throw to the
+ // appropriate catch, and do the appropriate cleanups along the way.
+ // CFI entries used for exception handling have two additional data
+ // associated with them:
+ //
+ // - The "language-specific data area" describes which exception
+ // types the function has 'catch' clauses for, and indicates how
+ // to go about re-entering the function at the appropriate catch
+ // clause. If the exception is not caught, it describes the
+ // destructors that must run before the frame is popped.
+ //
+ // - The "personality routine" is responsible for interpreting the
+ // language-specific data area's contents, and deciding whether
+ // the exception should continue to propagate down the stack,
+ // perhaps after doing some cleanup for this frame, or whether the
+ // exception will be caught here.
+ //
+ // In principle, the language-specific data area is opaque to
+ // everybody but the personality routine. In practice, these values
+ // may be useful or interesting to readers with extra context, and
+ // we have to at least skip them anyway, so we might as well report
+ // them to the handler.
+
+ // This entry's exception handling personality routine's address is
+ // ADDRESS. If INDIRECT is true, then ADDRESS is the address at
+ // which the routine's address is stored. The default definition for
+ // this handler function simply returns true, allowing parsing of
+ // the entry to continue.
+ virtual bool PersonalityRoutine(uint64 address, bool indirect) {
+ return true;
+ }
+
+ // This entry's language-specific data area (LSDA) is located at
+ // ADDRESS. If INDIRECT is true, then ADDRESS is the address at
+ // which the area's address is stored. The default definition for
+ // this handler function simply returns true, allowing parsing of
+ // the entry to continue.
+ virtual bool LanguageSpecificDataArea(uint64 address, bool indirect) {
+ return true;
+ }
+
+ // This entry describes a signal trampoline --- this frame is the
+ // caller of a signal handler. The default definition for this
+ // handler function simply returns true, allowing parsing of the
+ // entry to continue.
+ //
+ // The best description of the rationale for and meaning of signal
+ // trampoline CFI entries seems to be in the GCC bug database:
+ // http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26208
+ virtual bool SignalHandler() { return true; }
+};
+
+// The CallFrameInfo class makes calls on an instance of this class to
+// report errors or warn about problems in the data it is parsing. The
+// default definitions of these methods print a message to stderr, but
+// you can make a derived class that overrides them.
+class CallFrameInfo::Reporter {
+ public:
+ // Create an error reporter which attributes troubles to the section
+ // named SECTION in FILENAME.
+ //
+ // Normally SECTION would be .debug_frame, but the Mac puts CFI data
+ // in a Mach-O section named __debug_frame. If we support
+ // Linux-style exception handling data, we could be reading an
+ // .eh_frame section.
+ Reporter(const string &filename,
+ const string &section = ".debug_frame")
+ : filename_(filename), section_(section) { }
+ virtual ~Reporter() { }
+
+ // The CFI entry at OFFSET ends too early to be well-formed. KIND
+ // indicates what kind of entry it is; KIND can be kUnknown if we
+ // haven't parsed enough of the entry to tell yet.
+ virtual void Incomplete(uint64 offset, CallFrameInfo::EntryKind kind);
+
+ // The .eh_frame data has a four-byte zero at OFFSET where the next
+ // entry's length would be; this is a terminator. However, the buffer
+ // length as given to the CallFrameInfo constructor says there should be
+ // more data.
+ virtual void EarlyEHTerminator(uint64 offset);
+
+ // The FDE at OFFSET refers to the CIE at CIE_OFFSET, but the
+ // section is not that large.
+ virtual void CIEPointerOutOfRange(uint64 offset, uint64 cie_offset);
+
+ // The FDE at OFFSET refers to the CIE at CIE_OFFSET, but the entry
+ // there is not a CIE.
+ virtual void BadCIEId(uint64 offset, uint64 cie_offset);
+
+ // 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.
+ virtual void UnrecognizedVersion(uint64 offset, int version);
+
+ // The FDE at OFFSET refers to a CIE with augmentation AUGMENTATION,
+ // which we don't recognize. We cannot parse DWARF CFI if it uses
+ // augmentations we don't recognize.
+ virtual void UnrecognizedAugmentation(uint64 offset,
+ const string &augmentation);
+
+ // The pointer encoding ENCODING, specified by the CIE at OFFSET, is not
+ // a valid encoding.
+ virtual void InvalidPointerEncoding(uint64 offset, uint8 encoding);
+
+ // The pointer encoding ENCODING, specified by the CIE at OFFSET, depends
+ // on a base address which has not been supplied.
+ virtual void UnusablePointerEncoding(uint64 offset, uint8 encoding);
+
+ // The CIE at OFFSET contains a DW_CFA_restore instruction at
+ // INSN_OFFSET, which may not appear in a CIE.
+ virtual void RestoreInCIE(uint64 offset, uint64 insn_offset);
+
+ // The entry at OFFSET, of kind KIND, has an unrecognized
+ // instruction at INSN_OFFSET.
+ virtual void BadInstruction(uint64 offset, CallFrameInfo::EntryKind kind,
+ uint64 insn_offset);
+
+ // The instruction at INSN_OFFSET in the entry at OFFSET, of kind
+ // KIND, establishes a rule that cites the CFA, but we have not
+ // established a CFA rule yet.
+ virtual void NoCFARule(uint64 offset, CallFrameInfo::EntryKind kind,
+ uint64 insn_offset);
+
+ // The instruction at INSN_OFFSET in the entry at OFFSET, of kind
+ // KIND, is a DW_CFA_restore_state instruction, but the stack of
+ // saved states is empty.
+ virtual void EmptyStateStack(uint64 offset, CallFrameInfo::EntryKind kind,
+ uint64 insn_offset);
+
+ // The DW_CFA_remember_state instruction at INSN_OFFSET in the entry
+ // at OFFSET, of kind KIND, would restore a state that has no CFA
+ // rule, whereas the current state does have a CFA rule. This is
+ // bogus input, which the CallFrameInfo::Handler interface doesn't
+ // (and shouldn't) have any way to report.
+ virtual void ClearingCFARule(uint64 offset, CallFrameInfo::EntryKind kind,
+ uint64 insn_offset);
+
+ protected:
+ // The name of the file whose CFI we're reading.
+ string filename_;
+
+ // The name of the CFI section in that file.
+ string section_;
+};
+
+} // namespace dwarf2reader
+
+#endif // UTIL_DEBUGINFO_DWARF2READER_H__
diff --git a/3rdParty/Breakpad/src/common/dwarf/line_state_machine.h b/3rdParty/Breakpad/src/common/dwarf/line_state_machine.h
new file mode 100644
index 0000000..0ff72ab
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf/line_state_machine.h
@@ -0,0 +1,61 @@
+// Copyright 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.
+
+
+#ifndef COMMON_DWARF_LINE_STATE_MACHINE_H__
+#define COMMON_DWARF_LINE_STATE_MACHINE_H__
+
+namespace dwarf2reader {
+
+// This is the format of a DWARF2/3 line state machine that we process
+// opcodes using. There is no need for anything outside the lineinfo
+// processor to know how this works.
+struct LineStateMachine {
+ void Reset(bool default_is_stmt) {
+ file_num = 1;
+ address = 0;
+ line_num = 1;
+ column_num = 0;
+ is_stmt = default_is_stmt;
+ basic_block = false;
+ end_sequence = false;
+ }
+
+ uint32 file_num;
+ uint64 address;
+ uint32 line_num;
+ uint32 column_num;
+ bool is_stmt; // stmt means statement.
+ bool basic_block;
+ bool end_sequence;
+};
+
+} // namespace dwarf2reader
+
+
+#endif // COMMON_DWARF_LINE_STATE_MACHINE_H__
diff --git a/3rdParty/Breakpad/src/common/dwarf/types.h b/3rdParty/Breakpad/src/common/dwarf/types.h
new file mode 100644
index 0000000..61ca457
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf/types.h
@@ -0,0 +1,55 @@
+// Copyright 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.
+
+
+// This file contains some typedefs for basic types
+
+
+#ifndef _COMMON_DWARF_TYPES_H__
+#define _COMMON_DWARF_TYPES_H__
+
+#include <stdint.h>
+
+typedef signed char int8;
+typedef short int16;
+typedef int int32;
+typedef long long int64;
+
+typedef unsigned char uint8;
+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
+
+#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
new file mode 100644
index 0000000..15904d7
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf_cfi_to_module.cc
@@ -0,0 +1,258 @@
+// -*- 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>
+
+// Implementation of google_breakpad::DwarfCFIToModule.
+// See dwarf_cfi_to_module.h for details.
+
+#include <sstream>
+
+#include "common/dwarf_cfi_to_module.h"
+
+namespace google_breakpad {
+
+using std::ostringstream;
+
+vector<string> DwarfCFIToModule::RegisterNames::MakeVector(
+ const char * const *strings,
+ size_t size) {
+ vector<string> names(strings, strings + size);
+ return names;
+}
+
+vector<string> DwarfCFIToModule::RegisterNames::I386() {
+ static const char *const names[] = {
+ "$eax", "$ecx", "$edx", "$ebx", "$esp", "$ebp", "$esi", "$edi",
+ "$eip", "$eflags", "$unused1",
+ "$st0", "$st1", "$st2", "$st3", "$st4", "$st5", "$st6", "$st7",
+ "$unused2", "$unused3",
+ "$xmm0", "$xmm1", "$xmm2", "$xmm3", "$xmm4", "$xmm5", "$xmm6", "$xmm7",
+ "$mm0", "$mm1", "$mm2", "$mm3", "$mm4", "$mm5", "$mm6", "$mm7",
+ "$fcw", "$fsw", "$mxcsr",
+ "$es", "$cs", "$ss", "$ds", "$fs", "$gs", "$unused4", "$unused5",
+ "$tr", "$ldtr"
+ };
+
+ return MakeVector(names, sizeof(names) / sizeof(names[0]));
+}
+
+vector<string> DwarfCFIToModule::RegisterNames::X86_64() {
+ static const char *const names[] = {
+ "$rax", "$rdx", "$rcx", "$rbx", "$rsi", "$rdi", "$rbp", "$rsp",
+ "$r8", "$r9", "$r10", "$r11", "$r12", "$r13", "$r14", "$r15",
+ "$rip",
+ "$xmm0","$xmm1","$xmm2", "$xmm3", "$xmm4", "$xmm5", "$xmm6", "$xmm7",
+ "$xmm8","$xmm9","$xmm10","$xmm11","$xmm12","$xmm13","$xmm14","$xmm15",
+ "$st0", "$st1", "$st2", "$st3", "$st4", "$st5", "$st6", "$st7",
+ "$mm0", "$mm1", "$mm2", "$mm3", "$mm4", "$mm5", "$mm6", "$mm7",
+ "$rflags",
+ "$es", "$cs", "$ss", "$ds", "$fs", "$gs", "$unused1", "$unused2",
+ "$fs.base", "$gs.base", "$unused3", "$unused4",
+ "$tr", "$ldtr",
+ "$mxcsr", "$fcw", "$fsw"
+ };
+
+ return MakeVector(names, sizeof(names) / sizeof(names[0]));
+}
+
+// Per ARM IHI 0040A, section 3.1
+vector<string> DwarfCFIToModule::RegisterNames::ARM() {
+ static const char *const names[] = {
+ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+ "r8", "r9", "r10", "r11", "r12", "sp", "lr", "pc",
+ "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
+ "fps", "cpsr", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
+ "s8", "s9", "s10", "s11", "s12", "s13", "s14", "s15",
+ "s16", "s17", "s18", "s19", "s20", "s21", "s22", "s23",
+ "s24", "s25", "s26", "s27", "s28", "s29", "s30", "s31",
+ "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7"
+ };
+
+ return MakeVector(names, sizeof(names) / sizeof(names[0]));
+}
+
+bool DwarfCFIToModule::Entry(size_t offset, uint64 address, uint64 length,
+ uint8 version, const string &augmentation,
+ unsigned return_address) {
+ assert(!entry_);
+
+ // If dwarf2reader::CallFrameInfo can handle this version and
+ // augmentation, then we should be okay with that, so there's no
+ // need to check them here.
+
+ // Get ready to collect entries.
+ entry_ = new Module::StackFrameEntry;
+ entry_->address = address;
+ entry_->size = length;
+ entry_offset_ = offset;
+ return_address_ = return_address;
+
+ // Breakpad STACK CFI records must provide a .ra rule, but DWARF CFI
+ // may not establish any rule for .ra if the return address column
+ // is an ordinary register, and that register holds the return
+ // address on entry to the function. So establish an initial .ra
+ // rule citing the return address register.
+ if (return_address_ < register_names_.size())
+ entry_->initial_rules[ra_name_] = register_names_[return_address_];
+
+ return true;
+}
+
+string DwarfCFIToModule::RegisterName(int i) {
+ assert(entry_);
+ if (i < 0) {
+ assert(i == kCFARegister);
+ return cfa_name_;
+ }
+ unsigned reg = i;
+ if (reg == return_address_)
+ return ra_name_;
+
+ // Ensure that a non-empty name exists for this register value.
+ if (reg < register_names_.size() && !register_names_[reg].empty())
+ return register_names_[reg];
+
+ reporter_->UnnamedRegister(entry_offset_, reg);
+ char buf[30];
+ sprintf(buf, "unnamed_register%u", reg);
+ return buf;
+}
+
+void DwarfCFIToModule::Record(Module::Address address, int reg,
+ const string &rule) {
+ assert(entry_);
+
+ // 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 rules
+ // whenever possible. Since register names are drawn from a
+ // vector<string>, register names are already shared.
+ string shared_rule = *common_strings_.insert(rule).first;
+
+ // Is this one of this entry's initial rules?
+ if (address == entry_->address)
+ entry_->initial_rules[RegisterName(reg)] = shared_rule;
+ // File it under the appropriate address.
+ else
+ entry_->rule_changes[address][RegisterName(reg)] = shared_rule;
+}
+
+bool DwarfCFIToModule::UndefinedRule(uint64 address, int reg) {
+ reporter_->UndefinedNotSupported(entry_offset_, RegisterName(reg));
+ // Treat this as a non-fatal error.
+ return true;
+}
+
+bool DwarfCFIToModule::SameValueRule(uint64 address, int reg) {
+ ostringstream s;
+ s << RegisterName(reg);
+ Record(address, reg, s.str());
+ return true;
+}
+
+bool DwarfCFIToModule::OffsetRule(uint64 address, int reg,
+ int base_register, long offset) {
+ ostringstream s;
+ s << RegisterName(base_register) << " " << offset << " + ^";
+ Record(address, reg, s.str());
+ return true;
+}
+
+bool DwarfCFIToModule::ValOffsetRule(uint64 address, int reg,
+ int base_register, long offset) {
+ ostringstream s;
+ s << RegisterName(base_register) << " " << offset << " +";
+ Record(address, reg, s.str());
+ return true;
+}
+
+bool DwarfCFIToModule::RegisterRule(uint64 address, int reg,
+ int base_register) {
+ ostringstream s;
+ s << RegisterName(base_register);
+ Record(address, reg, s.str());
+ return true;
+}
+
+bool DwarfCFIToModule::ExpressionRule(uint64 address, int reg,
+ const string &expression) {
+ reporter_->ExpressionsNotSupported(entry_offset_, RegisterName(reg));
+ // Treat this as a non-fatal error.
+ return true;
+}
+
+bool DwarfCFIToModule::ValExpressionRule(uint64 address, int reg,
+ const string &expression) {
+ reporter_->ExpressionsNotSupported(entry_offset_, RegisterName(reg));
+ // Treat this as a non-fatal error.
+ return true;
+}
+
+bool DwarfCFIToModule::End() {
+ module_->AddStackFrameEntry(entry_);
+ entry_ = NULL;
+ return true;
+}
+
+void DwarfCFIToModule::Reporter::UnnamedRegister(size_t offset, int reg) {
+ fprintf(stderr, "%s, section '%s': "
+ "the call frame entry at offset 0x%zx refers to register %d,"
+ " whose name we don't know\n",
+ file_.c_str(), section_.c_str(), offset, reg);
+}
+
+void DwarfCFIToModule::Reporter::UndefinedNotSupported(size_t offset,
+ const string &reg) {
+ fprintf(stderr, "%s, section '%s': "
+ "the call frame entry at offset 0x%zx sets the rule for "
+ "register '%s' to 'undefined', but the Breakpad symbol file format"
+ " cannot express this\n",
+ file_.c_str(), section_.c_str(), offset, reg.c_str());
+}
+
+void DwarfCFIToModule::Reporter::ExpressionsNotSupported(size_t offset,
+ const string &reg) {
+ fprintf(stderr, "%s, section '%s': "
+ "the call frame entry at offset 0x%zx uses a DWARF expression to"
+ " describe how to recover register '%s', "
+ " but this translator cannot yet translate DWARF expressions to"
+ " Breakpad postfix expressions\n",
+ file_.c_str(), section_.c_str(), offset, reg.c_str());
+}
+
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/dwarf_cfi_to_module.h b/3rdParty/Breakpad/src/common/dwarf_cfi_to_module.h
new file mode 100644
index 0000000..7db552a
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf_cfi_to_module.h
@@ -0,0 +1,196 @@
+// -*- 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>
+
+// dwarf_cfi_to_module.h: Define the DwarfCFIToModule class, which
+// accepts parsed DWARF call frame info and adds it to a
+// google_breakpad::Module object, which can write that information to
+// a Breakpad symbol file.
+
+#ifndef COMMON_LINUX_DWARF_CFI_TO_MODULE_H
+#define COMMON_LINUX_DWARF_CFI_TO_MODULE_H
+
+#include <assert.h>
+#include <stdio.h>
+
+#include <set>
+#include <string>
+#include <vector>
+
+#include "common/module.h"
+#include "common/dwarf/dwarf2reader.h"
+#include "common/using_std_string.h"
+
+namespace google_breakpad {
+
+using dwarf2reader::CallFrameInfo;
+using google_breakpad::Module;
+using std::set;
+using std::vector;
+
+// A class that accepts parsed call frame information from the DWARF
+// CFI parser and populates a google_breakpad::Module object with the
+// contents.
+class DwarfCFIToModule: public CallFrameInfo::Handler {
+ public:
+
+ // DwarfCFIToModule uses an instance of this class to report errors
+ // detected while converting DWARF CFI to Breakpad STACK CFI records.
+ class Reporter {
+ public:
+ // Create a reporter that writes messages to the standard error
+ // stream. FILE is the name of the file we're processing, and
+ // SECTION is the name of the section within that file that we're
+ // looking at (.debug_frame, .eh_frame, etc.).
+ Reporter(const string &file, const string &section)
+ : file_(file), section_(section) { }
+ virtual ~Reporter() { }
+
+ // The DWARF CFI entry at OFFSET cites register REG, but REG is not
+ // covered by the vector of register names passed to the
+ // DwarfCFIToModule constructor, nor does it match the return
+ // address column number for this entry.
+ virtual void UnnamedRegister(size_t offset, int reg);
+
+ // The DWARF CFI entry at OFFSET says that REG is undefined, but the
+ // Breakpad symbol file format cannot express this.
+ virtual void UndefinedNotSupported(size_t offset, const string &reg);
+
+ // The DWARF CFI entry at OFFSET says that REG uses a DWARF
+ // expression to find its value, but DwarfCFIToModule is not
+ // capable of translating DWARF expressions to Breakpad postfix
+ // expressions.
+ virtual void ExpressionsNotSupported(size_t offset, const string &reg);
+
+ protected:
+ string file_, section_;
+ };
+
+ // Register name tables. If TABLE is a vector returned by one of these
+ // functions, then TABLE[R] is the name of the register numbered R in
+ // DWARF call frame information.
+ class RegisterNames {
+ public:
+ // Intel's "x86" or IA-32.
+ static vector<string> I386();
+
+ // AMD x86_64, AMD64, Intel EM64T, or Intel 64
+ static vector<string> X86_64();
+
+ // ARM.
+ static vector<string> ARM();
+
+ private:
+ // Given STRINGS, an array of C strings with SIZE elements, return an
+ // equivalent vector<string>.
+ static vector<string> MakeVector(const char * const *strings, size_t size);
+ };
+
+ // Create a handler for the dwarf2reader::CallFrameInfo parser that
+ // records the stack unwinding information it receives in MODULE.
+ //
+ // Use REGISTER_NAMES[I] as the name of register number I; *this
+ // keeps a reference to the vector, so the vector should remain
+ // alive for as long as the DwarfCFIToModule does.
+ //
+ // Use REPORTER for reporting problems encountered in the conversion
+ // process.
+ DwarfCFIToModule(Module *module, const vector<string> &register_names,
+ Reporter *reporter)
+ : module_(module), register_names_(register_names), reporter_(reporter),
+ entry_(NULL), return_address_(-1), cfa_name_(".cfa"), ra_name_(".ra") {
+ }
+ virtual ~DwarfCFIToModule() { delete entry_; }
+
+ virtual bool Entry(size_t offset, uint64 address, uint64 length,
+ uint8 version, const string &augmentation,
+ unsigned return_address);
+ virtual bool UndefinedRule(uint64 address, int reg);
+ virtual bool SameValueRule(uint64 address, int reg);
+ virtual bool OffsetRule(uint64 address, int reg,
+ int base_register, long offset);
+ virtual bool ValOffsetRule(uint64 address, int reg,
+ int base_register, long offset);
+ virtual bool RegisterRule(uint64 address, int reg, int base_register);
+ virtual bool ExpressionRule(uint64 address, int reg,
+ const string &expression);
+ virtual bool ValExpressionRule(uint64 address, int reg,
+ const string &expression);
+ virtual bool End();
+
+ private:
+ // Return the name to use for register REG.
+ string RegisterName(int i);
+
+ // Record RULE for register REG at ADDRESS.
+ void Record(Module::Address address, int reg, const string &rule);
+
+ // The module to which we should add entries.
+ Module *module_;
+
+ // Map from register numbers to register names.
+ const vector<string> &register_names_;
+
+ // The reporter to use to report problems.
+ Reporter *reporter_;
+
+ // The current entry we're constructing.
+ Module::StackFrameEntry *entry_;
+
+ // The section offset of the current frame description entry, for
+ // use in error messages.
+ size_t entry_offset_;
+
+ // The return address column for that entry.
+ unsigned return_address_;
+
+ // 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
+ // 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
+ // 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_;
+};
+
+} // namespace google_breakpad
+
+#endif // COMMON_LINUX_DWARF_CFI_TO_MODULE_H
diff --git a/3rdParty/Breakpad/src/common/dwarf_cu_to_module.cc b/3rdParty/Breakpad/src/common/dwarf_cu_to_module.cc
new file mode 100644
index 0000000..ded5f83
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf_cu_to_module.cc
@@ -0,0 +1,936 @@
+// 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>
+
+// Implement the DwarfCUToModule class; see dwarf_cu_to_module.h.
+
+// For <inttypes.h> PRI* macros, before anything else might #include it.
+#ifndef __STDC_FORMAT_MACROS
+#define __STDC_FORMAT_MACROS
+#endif /* __STDC_FORMAT_MACROS */
+
+#include "common/dwarf_cu_to_module.h"
+
+#include <assert.h>
+#include <inttypes.h>
+#include <stdio.h>
+
+#include <algorithm>
+#include <set>
+#include <utility>
+
+#include "common/dwarf_line_to_module.h"
+
+namespace google_breakpad {
+
+using std::map;
+using std::pair;
+using std::set;
+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
+// example, it's common for a function's address range to appear only in
+// its definition DIE, but its name to appear only in its declaration
+// DIE.
+//
+// The dumper needs to be able to follow DW_AT_specification links to
+// bring all this information together in a FUNC record. Conveniently,
+// DIEs that are the target of such links have a DW_AT_declaration flag
+// set, so we can identify them when we first see them, and record their
+// contents for later reference.
+//
+// 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 name of the enclosing scope, or the empty string if there is none.
+ string enclosing_name;
+
+ // The name for the specification DIE itself, without any enclosing
+ // name components.
+ string unqualified_name;
+};
+
+// An abstract origin -- base definition of an inline function.
+struct AbstractOrigin {
+ AbstractOrigin() : name() {}
+ AbstractOrigin(const string& name) : name(name) {}
+
+ string name;
+};
+
+typedef map<uint64, AbstractOrigin> AbstractOriginByOffset;
+
+// Data global to the DWARF-bearing file that is private to the
+// DWARF-to-Module process.
+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;
+
+ // A map from offsets of DIEs within the .debug_info section to
+ // Specifications describing those DIEs. Specification references can
+ // cross compilation unit boundaries.
+ SpecificationByOffset specifications;
+
+ 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() {
+ delete file_private;
+}
+
+// Information global to the particular compilation unit we're
+// parsing. This is for data shared across the CU's entire DIE tree,
+// and parameters from the code invoking the CU parser.
+struct DwarfCUToModule::CUContext {
+ CUContext(FileContext *file_context_arg, WarningReporter *reporter_arg)
+ : file_context(file_context_arg),
+ reporter(reporter_arg),
+ language(Language::CPlusPlus) { }
+ ~CUContext() {
+ for (vector<Module::Function *>::iterator it = functions.begin();
+ it != functions.end(); it++)
+ delete *it;
+ };
+
+ // The DWARF-bearing file into which this CU was incorporated.
+ FileContext *file_context;
+
+ // For printing error messages.
+ WarningReporter *reporter;
+
+ // The source language of this compilation unit.
+ const Language *language;
+
+ // The functions defined in this compilation unit. We accumulate
+ // them here during parsing. Then, in DwarfCUToModule::Finish, we
+ // assign them lines and add them to file_context->module.
+ //
+ // Destroying this destroys all the functions this vector points to.
+ vector<Module::Function *> functions;
+};
+
+// Information about the context of a particular DIE. This is for
+// information that changes as we descend the tree towards the leaves:
+// the containing classes/namespaces, etc.
+struct DwarfCUToModule::DIEContext {
+ // The fully-qualified name of the context. For example, for a
+ // tree like:
+ //
+ // DW_TAG_namespace Foo
+ // DW_TAG_class Bar
+ // DW_TAG_subprogram Baz
+ //
+ // in a C++ compilation unit, the DIEContext's name for the
+ // DW_TAG_subprogram DIE would be "Foo::Bar". The DIEContext's
+ // name for the DW_TAG_namespace DIE would be "".
+ string name;
+};
+
+// An abstract base class for all the dumper's DIE handlers.
+class DwarfCUToModule::GenericDIEHandler: public dwarf2reader::DIEHandler {
+ public:
+ // Create a handler for the DIE at OFFSET whose compilation unit is
+ // described by CU_CONTEXT, and whose immediate context is described
+ // by PARENT_CONTEXT.
+ GenericDIEHandler(CUContext *cu_context, DIEContext *parent_context,
+ uint64 offset)
+ : cu_context_(cu_context),
+ parent_context_(parent_context),
+ offset_(offset),
+ declaration_(false),
+ specification_(NULL) { }
+
+ // Derived classes' ProcessAttributeUnsigned can defer to this to
+ // handle DW_AT_declaration, or simply not override it.
+ void ProcessAttributeUnsigned(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data);
+
+ // Derived classes' ProcessAttributeReference can defer to this to
+ // handle DW_AT_specification, or simply not override it.
+ void ProcessAttributeReference(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data);
+
+ // Derived classes' ProcessAttributeReference can defer to this to
+ // handle DW_AT_specification, or simply not override it.
+ void ProcessAttributeString(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ const string &data);
+
+ protected:
+ // Compute and return the fully-qualified name of the DIE. If this
+ // DIE is a declaration DIE, to be cited by other DIEs'
+ // DW_AT_specification attributes, record its enclosing name and
+ // unqualified name in the specification table.
+ //
+ // Use this from EndAttributes member functions, not ProcessAttribute*
+ // functions; only the former can be sure that all the DIE's attributes
+ // have been seen.
+ string ComputeQualifiedName();
+
+ CUContext *cu_context_;
+ DIEContext *parent_context_;
+ uint64 offset_;
+
+ // 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_;
+
+ // If this DIE has a DW_AT_specification attribute, this is the
+ // Specification structure for the DIE the attribute refers to.
+ // Otherwise, this is NULL.
+ Specification *specification_;
+
+ // The value of the DW_AT_name attribute, or the empty string if the
+ // DIE has no such attribute.
+ string name_attribute_;
+};
+
+void DwarfCUToModule::GenericDIEHandler::ProcessAttributeUnsigned(
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data) {
+ switch (attr) {
+ case dwarf2reader::DW_AT_declaration: declaration_ = (data != 0); break;
+ default: break;
+ }
+}
+
+void DwarfCUToModule::GenericDIEHandler::ProcessAttributeReference(
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data) {
+ switch (attr) {
+ case dwarf2reader::DW_AT_specification: {
+ // 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::iterator spec = specifications->find(data);
+ if (spec != specifications->end()) {
+ specification_ = &spec->second;
+ } else {
+ // Technically, there's no reason a DW_AT_specification
+ // couldn't be a forward reference, but supporting that would
+ // be a lot of work (changing to a two-pass structure), and I
+ // don't think any producers we care about ever emit such
+ // things.
+ cu_context_->reporter->UnknownSpecification(offset_, data);
+ }
+ break;
+ }
+ default: break;
+ }
+}
+
+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;
+ break;
+ }
+ default: break;
+ }
+}
+
+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.
+ const string *enclosing_name;
+ if (specification_)
+ enclosing_name = &specification_->enclosing_name;
+ else
+ enclosing_name = &parent_context_->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;
+ Specification spec;
+ spec.enclosing_name = *enclosing_name;
+ spec.unqualified_name = *unqualified_name;
+ 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);
+}
+
+// A handler class for DW_TAG_subprogram DIEs.
+class DwarfCUToModule::FuncHandler: public GenericDIEHandler {
+ public:
+ 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) { }
+ void ProcessAttributeUnsigned(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data);
+ void ProcessAttributeSigned(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ int64 data);
+ void ProcessAttributeReference(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data);
+
+ bool EndAttributes();
+ void Finish();
+
+ private:
+ // The fully-qualified name, as derived from name_attribute_,
+ // specification_, parent_context_. Computed in EndAttributes.
+ string name_;
+ uint64 low_pc_, high_pc_; // DW_AT_low_pc, DW_AT_high_pc
+ const AbstractOrigin* abstract_origin_;
+ bool inline_;
+};
+
+void DwarfCUToModule::FuncHandler::ProcessAttributeUnsigned(
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data) {
+ switch (attr) {
+ // If this attribute is present at all --- even if its value is
+ // DW_INL_not_inlined --- then GCC may cite it as someone else's
+ // DW_AT_abstract_origin attribute.
+ 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;
+ default:
+ GenericDIEHandler::ProcessAttributeUnsigned(attr, form, data);
+ break;
+ }
+}
+
+void DwarfCUToModule::FuncHandler::ProcessAttributeSigned(
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ int64 data) {
+ switch (attr) {
+ // If this attribute is present at all --- even if its value is
+ // DW_INL_not_inlined --- then GCC may cite it as someone else's
+ // DW_AT_abstract_origin attribute.
+ case dwarf2reader::DW_AT_inline: inline_ = true; break;
+
+ default:
+ break;
+ }
+}
+
+void DwarfCUToModule::FuncHandler::ProcessAttributeReference(
+ enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data) {
+ switch(attr) {
+ case dwarf2reader::DW_AT_abstract_origin: {
+ const AbstractOriginByOffset& origins =
+ cu_context_->file_context->file_private->origins;
+ AbstractOriginByOffset::const_iterator origin = origins.find(data);
+ if (origin != origins.end()) {
+ abstract_origin_ = &(origin->second);
+ } else {
+ cu_context_->reporter->UnknownAbstractOrigin(offset_, data);
+ }
+ break;
+ }
+ default:
+ GenericDIEHandler::ProcessAttributeReference(attr, form, data);
+ break;
+ }
+}
+
+bool DwarfCUToModule::FuncHandler::EndAttributes() {
+ // Compute our name, and record a specification, if appropriate.
+ name_ = ComputeQualifiedName();
+ if (name_.empty() && abstract_origin_) {
+ name_ = abstract_origin_->name;
+ }
+ return true;
+}
+
+void DwarfCUToModule::FuncHandler::Finish() {
+ // 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.
+ if (!name_.empty()) {
+ func->name = name_;
+ } else {
+ cu_context_->reporter->UnnamedFunction(offset_);
+ func->name = "<name omitted>";
+ }
+ func->address = 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);
+ }
+ } else if (inline_) {
+ AbstractOrigin origin(name_);
+ cu_context_->file_context->file_private->origins[offset_] = origin;
+ }
+}
+
+// A handler for DIEs that contain functions and contribute a
+// component to their names: namespaces, classes, etc.
+class DwarfCUToModule::NamedScopeHandler: public GenericDIEHandler {
+ public:
+ NamedScopeHandler(CUContext *cu_context, DIEContext *parent_context,
+ uint64 offset)
+ : GenericDIEHandler(cu_context, parent_context, offset) { }
+ bool EndAttributes();
+ DIEHandler *FindChildHandler(uint64 offset, enum DwarfTag tag,
+ const AttributeList &attrs);
+
+ private:
+ DIEContext child_context_; // A context for our children.
+};
+
+bool DwarfCUToModule::NamedScopeHandler::EndAttributes() {
+ child_context_.name = ComputeQualifiedName();
+ return true;
+}
+
+dwarf2reader::DIEHandler *DwarfCUToModule::NamedScopeHandler::FindChildHandler(
+ uint64 offset,
+ enum DwarfTag tag,
+ const AttributeList &attrs) {
+ switch (tag) {
+ case dwarf2reader::DW_TAG_subprogram:
+ return new FuncHandler(cu_context_, &child_context_, 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);
+ default:
+ return NULL;
+ }
+}
+
+void DwarfCUToModule::WarningReporter::CUHeading() {
+ if (printed_cu_header_)
+ return;
+ fprintf(stderr, "%s: in compilation unit '%s' (offset 0x%llx):\n",
+ filename_.c_str(), cu_name_.c_str(), cu_offset_);
+ printed_cu_header_ = true;
+}
+
+void DwarfCUToModule::WarningReporter::UnknownSpecification(uint64 offset,
+ uint64 target) {
+ CUHeading();
+ fprintf(stderr, "%s: the DIE at offset 0x%llx has a DW_AT_specification"
+ " attribute referring to the die at offset 0x%llx, which either"
+ " was not marked as a declaration, or comes later in the file\n",
+ filename_.c_str(), offset, target);
+}
+
+void DwarfCUToModule::WarningReporter::UnknownAbstractOrigin(uint64 offset,
+ uint64 target) {
+ CUHeading();
+ fprintf(stderr, "%s: the DIE at offset 0x%llx has a DW_AT_abstract_origin"
+ " attribute referring to the die at offset 0x%llx, which either"
+ " was not marked as an inline, or comes later in the file\n",
+ filename_.c_str(), offset, target);
+}
+
+void DwarfCUToModule::WarningReporter::MissingSection(const string &name) {
+ CUHeading();
+ fprintf(stderr, "%s: warning: couldn't find DWARF '%s' section\n",
+ filename_.c_str(), name.c_str());
+}
+
+void DwarfCUToModule::WarningReporter::BadLineInfoOffset(uint64 offset) {
+ CUHeading();
+ fprintf(stderr, "%s: warning: line number data offset beyond end"
+ " of '.debug_line' section\n",
+ filename_.c_str());
+}
+
+void DwarfCUToModule::WarningReporter::UncoveredHeading() {
+ if (printed_unpaired_header_)
+ return;
+ CUHeading();
+ fprintf(stderr, "%s: warning: skipping unpaired lines/functions:\n",
+ filename_.c_str());
+ printed_unpaired_header_ = true;
+}
+
+void DwarfCUToModule::WarningReporter::UncoveredFunction(
+ const Module::Function &function) {
+ if (!uncovered_warnings_enabled_)
+ return;
+ UncoveredHeading();
+ fprintf(stderr, " function%s: %s\n",
+ function.size == 0 ? " (zero-length)" : "",
+ function.name.c_str());
+}
+
+void DwarfCUToModule::WarningReporter::UncoveredLine(const Module::Line &line) {
+ if (!uncovered_warnings_enabled_)
+ return;
+ UncoveredHeading();
+ fprintf(stderr, " line%s: %s:%d at 0x%" PRIx64 "\n",
+ (line.size == 0 ? " (zero-length)" : ""),
+ line.file->name.c_str(), line.number, line.address);
+}
+
+void DwarfCUToModule::WarningReporter::UnnamedFunction(uint64 offset) {
+ CUHeading();
+ fprintf(stderr, "%s: warning: function at offset 0x%llx has no name\n",
+ filename_.c_str(), offset);
+}
+
+DwarfCUToModule::DwarfCUToModule(FileContext *file_context,
+ LineToModuleFunctor *line_reader,
+ WarningReporter *reporter)
+ : line_reader_(line_reader), has_source_line_info_(false) {
+ cu_context_ = new CUContext(file_context, reporter);
+ child_context_ = new DIEContext();
+}
+
+DwarfCUToModule::~DwarfCUToModule() {
+ delete cu_context_;
+ delete child_context_;
+}
+
+void DwarfCUToModule::ProcessAttributeSigned(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ int64 data) {
+ switch (attr) {
+ case dwarf2reader::DW_AT_language: // source language of this CU
+ SetLanguage(static_cast<DwarfLanguage>(data));
+ break;
+ default:
+ break;
+ }
+}
+
+void DwarfCUToModule::ProcessAttributeUnsigned(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data) {
+ switch (attr) {
+ case dwarf2reader::DW_AT_stmt_list: // Line number information.
+ has_source_line_info_ = true;
+ source_line_offset_ = data;
+ break;
+ case dwarf2reader::DW_AT_language: // source language of this CU
+ SetLanguage(static_cast<DwarfLanguage>(data));
+ break;
+ default:
+ break;
+ }
+}
+
+void DwarfCUToModule::ProcessAttributeString(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ const string &data) {
+ if (attr == dwarf2reader::DW_AT_name)
+ cu_context_->reporter->SetCUName(data);
+}
+
+bool DwarfCUToModule::EndAttributes() {
+ return true;
+}
+
+dwarf2reader::DIEHandler *DwarfCUToModule::FindChildHandler(
+ uint64 offset,
+ enum DwarfTag tag,
+ const AttributeList &attrs) {
+ switch (tag) {
+ case dwarf2reader::DW_TAG_subprogram:
+ return new FuncHandler(cu_context_, child_context_, 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);
+ default:
+ return NULL;
+ }
+}
+
+void DwarfCUToModule::SetLanguage(DwarfLanguage language) {
+ switch (language) {
+ case dwarf2reader::DW_LANG_Java:
+ cu_context_->language = Language::Java;
+ break;
+
+ // DWARF has no generic language code for assembly language; this is
+ // what the GNU toolchain uses.
+ case dwarf2reader::DW_LANG_Mips_Assembler:
+ cu_context_->language = Language::Assembler;
+ break;
+
+ // C++ covers so many cases that it probably has some way to cope
+ // with whatever the other languages throw at us. So make it the
+ // default.
+ //
+ // 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.
+ default:
+ case dwarf2reader::DW_LANG_ObjC:
+ case dwarf2reader::DW_LANG_ObjC_plus_plus:
+ case dwarf2reader::DW_LANG_C:
+ case dwarf2reader::DW_LANG_C89:
+ case dwarf2reader::DW_LANG_C99:
+ case dwarf2reader::DW_LANG_C_plus_plus:
+ cu_context_->language = Language::CPlusPlus;
+ break;
+ }
+}
+
+void DwarfCUToModule::ReadSourceLines(uint64 offset) {
+ const dwarf2reader::SectionMap &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 "__"
+ // instead of ".".
+ if (map_entry == section_map.end())
+ map_entry = section_map.find("__debug_line");
+ if (map_entry == section_map.end()) {
+ cu_context_->reporter->MissingSection(".debug_line");
+ return;
+ }
+ const char *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_);
+}
+
+namespace {
+// Return true if ADDRESS falls within the range of ITEM.
+template <class T>
+inline bool within(const T &item, Module::Address address) {
+ // Because Module::Address is unsigned, and unsigned arithmetic
+ // wraps around, this will be false if ADDRESS falls before the
+ // start of ITEM, or if it falls after ITEM's end.
+ return address - item.address < item.size;
+}
+}
+
+void DwarfCUToModule::AssignLinesToFunctions() {
+ vector<Module::Function *> *functions = &cu_context_->functions;
+ WarningReporter *reporter = cu_context_->reporter;
+
+ // This would be simpler if we assumed that source line entries
+ // don't cross function boundaries. However, there's no real reason
+ // to assume that (say) a series of function definitions on the same
+ // line wouldn't get coalesced into one line number entry. The
+ // DWARF spec certainly makes no such promises.
+ //
+ // So treat the functions and lines as peers, and take the trouble
+ // to compute their ranges' intersections precisely. In any case,
+ // the hair here is a constant factor for performance; the
+ // 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);
+
+ // The last line that we used any piece of. We use this only for
+ // generating warnings.
+ const Module::Line *last_line_used = NULL;
+
+ // The last function and line we warned about --- so we can avoid
+ // doing so more than once.
+ const Module::Function *last_function_cited = NULL;
+ const Module::Line *last_line_cited = NULL;
+
+ // Make a single pass through both vectors from lower to higher
+ // addresses, populating each Function's lines vector with lines
+ // from our lines_ vector that fall within the function's address
+ // range.
+ vector<Module::Function *>::iterator func_it = functions->begin();
+ vector<Module::Line>::const_iterator line_it = lines_.begin();
+
+ Module::Address current;
+
+ // Pointers to the referents of func_it and line_it, or NULL if the
+ // iterator is at the end of the sequence.
+ Module::Function *func;
+ const Module::Line *line;
+
+ // Start current at the beginning of the first line or function,
+ // whichever is earlier.
+ if (func_it != functions->end() && line_it != lines_.end()) {
+ func = *func_it;
+ line = &*line_it;
+ current = std::min(func->address, line->address);
+ } else if (line_it != lines_.end()) {
+ func = NULL;
+ line = &*line_it;
+ current = line->address;
+ } else if (func_it != functions->end()) {
+ func = *func_it;
+ line = NULL;
+ current = (*func_it)->address;
+ } else {
+ return;
+ }
+
+ while (func || line) {
+ // This loop has two invariants that hold at the top.
+ //
+ // First, at least one of the iterators is not at the end of its
+ // sequence, and those that are not refer to the earliest
+ // function or line that contains or starts after CURRENT.
+ //
+ // Note that every byte is in one of four states: it is covered
+ // or not covered by a function, and, independently, it is
+ // covered or not covered by a line.
+ //
+ // The second invariant is that CURRENT refers to a byte whose
+ // state is different from its predecessor, or it refers to the
+ // first byte in the address space. In other words, CURRENT is
+ // always the address of a transition.
+ //
+ // Note that, although each iteration advances CURRENT from one
+ // transition address to the next in each iteration, it might
+ // not advance the iterators. Suppose we have a function that
+ // starts with a line, has a gap, and then a second line, and
+ // suppose that we enter an iteration with CURRENT at the end of
+ // the first line. The next transition address is the start of
+ // the second line, after the gap, so the iteration should
+ // advance CURRENT to that point. At the head of that iteration,
+ // the invariants require that the line iterator be pointing at
+ // the second line. But this is also true at the head of the
+ // next. And clearly, the iteration must not change the function
+ // iterator. So neither iterator moves.
+
+ // Assert the first invariant (see above).
+ assert(!func || current < func->address || within(*func, current));
+ assert(!line || current < line->address || within(*line, current));
+
+ // The next transition after CURRENT.
+ Module::Address next_transition;
+
+ // Figure out which state we're in, add lines or warn, and compute
+ // the next transition address.
+ if (func && current >= func->address) {
+ if (line && current >= line->address) {
+ // Covered by both a line and a function.
+ Module::Address func_left = func->size - (current - func->address);
+ Module::Address line_left = line->size - (current - line->address);
+ // This may overflow, but things work out.
+ next_transition = current + std::min(func_left, line_left);
+ Module::Line l = *line;
+ l.address = current;
+ l.size = next_transition - current;
+ func->lines.push_back(l);
+ last_line_used = line;
+ } else {
+ // Covered by a function, but no line.
+ if (func != last_function_cited) {
+ reporter->UncoveredFunction(*func);
+ last_function_cited = func;
+ }
+ if (line && within(*func, line->address))
+ next_transition = line->address;
+ else
+ // If this overflows, we'll catch it below.
+ next_transition = func->address + func->size;
+ }
+ } else {
+ if (line && current >= line->address) {
+ // Covered by a line, but no function.
+ //
+ // 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, and it ends at the
+ // start of the next function, then assume this is what
+ // happened, and don't warn.
+ if (line != last_line_cited
+ && !(func
+ && line == last_line_used
+ && func->address - line->address == line->size)) {
+ reporter->UncoveredLine(*line);
+ last_line_cited = line;
+ }
+ if (func && within(*line, func->address))
+ next_transition = func->address;
+ else
+ // If this overflows, we'll catch it below.
+ next_transition = line->address + line->size;
+ } else {
+ // Covered by neither a function nor a line. By the invariant,
+ // 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);
+ if (func && line)
+ next_transition = std::min(func->address, line->address);
+ else if (func)
+ next_transition = func->address;
+ else
+ next_transition = line->address;
+ }
+ }
+
+ // If a function or line abuts the end of the address space, then
+ // next_transition may end up being zero, in which case we've completed
+ // our pass. Handle that here, instead of trying to deal with it in
+ // each place we compute next_transition.
+ if (!next_transition)
+ break;
+
+ // Advance iterators as needed. If lines overlap or functions overlap,
+ // then we could go around more than once. We don't worry too much
+ // about what result we produce in that case, just as long as we don't
+ // hang or crash.
+ while (func_it != functions->end()
+ && next_transition >= (*func_it)->address
+ && !within(**func_it, next_transition))
+ func_it++;
+ func = (func_it != functions->end()) ? *func_it : NULL;
+ while (line_it != lines_.end()
+ && next_transition >= line_it->address
+ && !within(*line_it, next_transition))
+ line_it++;
+ line = (line_it != lines_.end()) ? &*line_it : NULL;
+
+ // We must make progress.
+ assert(next_transition > current);
+ current = next_transition;
+ }
+}
+
+void DwarfCUToModule::Finish() {
+ // Assembly language files have no function data, and that gives us
+ // no place to store our line numbers (even though the GNU toolchain
+ // will happily produce source line info for assembly language
+ // files). To avoid spurious warnings about lines we can't assign
+ // to functions, skip CUs in languages that lack functions.
+ if (!cu_context_->language->HasFunctions())
+ return;
+
+ // Read source line info, if we have any.
+ if (has_source_line_info_)
+ ReadSourceLines(source_line_offset_);
+
+ vector<Module::Function *> *functions = &cu_context_->functions;
+
+ // Dole out lines to the appropriate functions.
+ AssignLinesToFunctions();
+
+ // Add our functions, which now have source lines assigned to them,
+ // to module_.
+ 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();
+}
+
+bool DwarfCUToModule::StartCompilationUnit(uint64 offset,
+ uint8 address_size,
+ uint8 offset_size,
+ uint64 cu_length,
+ uint8 dwarf_version) {
+ return dwarf_version >= 2;
+}
+
+bool DwarfCUToModule::StartRootDIE(uint64 offset, enum DwarfTag tag,
+ const AttributeList& attrs) {
+ // 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;
+}
+
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/dwarf_cu_to_module.h b/3rdParty/Breakpad/src/common/dwarf_cu_to_module.h
new file mode 100644
index 0000000..ac62846
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf_cu_to_module.h
@@ -0,0 +1,277 @@
+// -*- 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>
+
+// Add DWARF debugging information to a Breakpad symbol file. This
+// file defines the DwarfCUToModule class, which accepts parsed DWARF
+// data and populates a google_breakpad::Module with the results; the
+// Module can then write its contents as a Breakpad symbol file.
+
+#ifndef COMMON_LINUX_DWARF_CU_TO_MODULE_H__
+#define COMMON_LINUX_DWARF_CU_TO_MODULE_H__
+
+#include <string>
+
+#include "common/language.h"
+#include "common/module.h"
+#include "common/dwarf/bytereader.h"
+#include "common/dwarf/dwarf2diehandler.h"
+#include "common/dwarf/dwarf2reader.h"
+#include "common/using_std_string.h"
+
+namespace google_breakpad {
+
+using dwarf2reader::AttributeList;
+using dwarf2reader::DwarfAttribute;
+using dwarf2reader::DwarfForm;
+using dwarf2reader::DwarfLanguage;
+using dwarf2reader::DwarfTag;
+
+// Populate a google_breakpad::Module with DWARF debugging information.
+//
+// An instance of this class can be provided as a handler to a
+// dwarf2reader::DIEDispatcher, which can in turn be a handler for a
+// dwarf2reader::CompilationUnit DWARF parser. The handler uses the results
+// of parsing to populate a google_breakpad::Module with source file,
+// function, and source line information.
+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
+ // global to the whole file is held here. The client is responsible
+ // 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);
+ ~FileContext();
+
+ // The name of this file, for use in error messages.
+ 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;
+
+ // The Module to which we're contributing definitions.
+ Module *module;
+
+ // Inter-compilation unit data used internally by the handlers.
+ FilePrivate *file_private;
+ };
+
+ // An abstract base class for functors 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 {
+ public:
+ LineToModuleFunctor() { }
+ virtual ~LineToModuleFunctor() { }
+
+ // 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;
+ };
+
+ // The interface DwarfCUToModule uses to report warnings. The member
+ // function definitions for this class write messages to stderr, but
+ // you can override them if you'd like to detect or report these
+ // conditions yourself.
+ class WarningReporter {
+ public:
+ // Warn about problems in the DWARF file FILENAME, in the
+ // compilation unit at OFFSET.
+ WarningReporter(const string &filename, uint64 cu_offset)
+ : filename_(filename), cu_offset_(cu_offset), printed_cu_header_(false),
+ printed_unpaired_header_(false),
+ uncovered_warnings_enabled_(false) { }
+ virtual ~WarningReporter() { }
+
+ // Set the name of the compilation unit we're processing to NAME.
+ virtual void SetCUName(const string &name) { cu_name_ = name; }
+
+ // Accessor and setter for uncovered_warnings_enabled_.
+ // UncoveredFunction and UncoveredLine only report a problem if that is
+ // true. By default, these warnings are disabled, because those
+ // conditions occur occasionally in healthy code.
+ virtual bool uncovered_warnings_enabled() const {
+ return uncovered_warnings_enabled_;
+ }
+ virtual void set_uncovered_warnings_enabled(bool value) {
+ uncovered_warnings_enabled_ = value;
+ }
+
+ // A DW_AT_specification in the DIE at OFFSET refers to a DIE we
+ // haven't processed yet, or that wasn't marked as a declaration,
+ // at TARGET.
+ virtual void UnknownSpecification(uint64 offset, uint64 target);
+
+ // A DW_AT_abstract_origin in the DIE at OFFSET refers to a DIE we
+ // haven't processed yet, or that wasn't marked as inline, at TARGET.
+ virtual void UnknownAbstractOrigin(uint64 offset, uint64 target);
+
+ // We were unable to find the DWARF section named SECTION_NAME.
+ virtual void MissingSection(const string &section_name);
+
+ // The CU's DW_AT_stmt_list offset OFFSET is bogus.
+ virtual void BadLineInfoOffset(uint64 offset);
+
+ // FUNCTION includes code covered by no line number data.
+ virtual void UncoveredFunction(const Module::Function &function);
+
+ // Line number NUMBER in LINE_FILE, of length LENGTH, includes code
+ // covered by no function.
+ virtual void UncoveredLine(const Module::Line &line);
+
+ // The DW_TAG_subprogram DIE at OFFSET has no name specified directly
+ // in the DIE, nor via a DW_AT_specification or DW_AT_abstract_origin
+ // link.
+ virtual void UnnamedFunction(uint64 offset);
+
+ protected:
+ string filename_;
+ uint64 cu_offset_;
+ string cu_name_;
+ bool printed_cu_header_;
+ bool printed_unpaired_header_;
+ bool uncovered_warnings_enabled_;
+
+ private:
+ // Print a per-CU heading, once.
+ void CUHeading();
+ // Print an unpaired function/line heading, once.
+ void UncoveredHeading();
+ };
+
+ // Create a DWARF debugging info handler for a compilation unit
+ // within FILE_CONTEXT. This uses information received from the
+ // dwarf2reader::CompilationUnit DWARF parser to populate
+ // FILE_CONTEXT->module. Use LINE_READER to handle the compilation
+ // unit's line number data. Use REPORTER to report problems with the
+ // data we find.
+ DwarfCUToModule(FileContext *file_context,
+ LineToModuleFunctor *line_reader,
+ WarningReporter *reporter);
+ ~DwarfCUToModule();
+
+ void ProcessAttributeSigned(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ int64 data);
+ void ProcessAttributeUnsigned(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ uint64 data);
+ void ProcessAttributeString(enum DwarfAttribute attr,
+ enum DwarfForm form,
+ const string &data);
+ bool EndAttributes();
+ DIEHandler *FindChildHandler(uint64 offset, enum DwarfTag tag,
+ const AttributeList &attrs);
+
+ // Assign all our source Lines to the Functions that cover their
+ // addresses, and then add them to module_.
+ void Finish();
+
+ 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);
+
+ private:
+
+ // Used internally by the handler. Full definitions are in
+ // dwarf_cu_to_module.cc.
+ struct FilePrivate;
+ struct Specification;
+ struct CUContext;
+ struct DIEContext;
+ class GenericDIEHandler;
+ class FuncHandler;
+ class NamedScopeHandler;
+
+ // A map from section offsets to specifications.
+ typedef map<uint64, Specification> SpecificationByOffset;
+
+ // 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
+ // AssignLinesToFunctions.
+ void ReadSourceLines(uint64 offset);
+
+ // Assign the lines in lines_ to the individual line lists of the
+ // functions in functions_. (DWARF line information maps an entire
+ // compilation unit at a time, and gives no indication of which
+ // lines belong to which functions, beyond their addresses.)
+ void AssignLinesToFunctions();
+
+ // The only reason cu_context_ and child_context_ are pointers is
+ // that we want to keep their definitions private to
+ // dwarf_cu_to_module.cc, instead of listing them all here. They are
+ // 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_;
+
+ // This compilation unit's context.
+ CUContext *cu_context_;
+
+ // A context for our children.
+ DIEContext *child_context_;
+
+ // True if this compilation unit has source line information.
+ bool has_source_line_info_;
+
+ // The offset of this compilation unit's line number information in
+ // the .debug_line section.
+ uint64 source_line_offset_;
+
+ // The line numbers we have seen thus far. We accumulate these here
+ // during parsing. Then, in Finish, we call AssignLinesToFunctions
+ // to dole them out to the appropriate functions.
+ vector<Module::Line> lines_;
+};
+
+} // namespace google_breakpad
+
+#endif // COMMON_LINUX_DWARF_CU_TO_MODULE_H__
diff --git a/3rdParty/Breakpad/src/common/dwarf_line_to_module.cc b/3rdParty/Breakpad/src/common/dwarf_line_to_module.cc
new file mode 100644
index 0000000..962848d
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf_line_to_module.cc
@@ -0,0 +1,138 @@
+// 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: Implementation of DwarfLineToModule class.
+// See dwarf_line_to_module.h for details.
+
+#include <stdio.h>
+
+#include <string>
+
+#include "common/dwarf_line_to_module.h"
+#include "common/using_std_string.h"
+
+// Trying to support Windows paths in a reasonable way adds a lot of
+// variations to test; it would be better to just put off dealing with
+// it until we actually have to deal with DWARF on Windows.
+
+// Return true if PATH is an absolute path, false if it is relative.
+static bool PathIsAbsolute(const string &path) {
+ return (path.size() >= 1 && path[0] == '/');
+}
+
+// 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))
+ return path;
+ return base + "/" + path;
+}
+
+namespace google_breakpad {
+
+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;
+}
+
+void DwarfLineToModule::DefineFile(const string &name, int32 file_num,
+ uint32 dir_num, uint64 mod_time,
+ uint64 length) {
+ if (file_num == -1)
+ file_num = ++highest_file_number_;
+ else if (file_num > highest_file_number_)
+ highest_file_number_ = file_num;
+
+ string full_name;
+ if (dir_num != 0) {
+ DirectoryTable::const_iterator directory_it = directories_.find(dir_num);
+ if (directory_it != directories_.end()) {
+ full_name = ExpandPath(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;
+ }
+
+ // Find a Module::File object of the given name, and add it to the
+ // file table.
+ files_[file_num] = module_->FindFile(full_name);
+}
+
+void DwarfLineToModule::AddLine(uint64 address, uint64 length,
+ uint32 file_num, uint32 line_num,
+ uint32 column_num) {
+ if (length == 0)
+ return;
+
+ // Clip lines not to extend beyond the end of the address space.
+ if (address + length < address)
+ length = -address;
+
+ // Should we omit this line? (See the comments for omitted_line_end_.)
+ if (address == 0 || address == omitted_line_end_) {
+ omitted_line_end_ = address + length;
+ return;
+ } else {
+ omitted_line_end_ = 0;
+ }
+
+ // Find the source file being referred to.
+ Module::File *file = files_[file_num];
+ if (!file) {
+ if (!warned_bad_file_number_) {
+ fprintf(stderr, "warning: DWARF line number data refers to "
+ "undefined file numbers\n");
+ warned_bad_file_number_ = true;
+ }
+ return;
+ }
+ Module::Line line;
+ line.address = address;
+ // We set the size when we get the next line or the EndSequence call.
+ line.size = length;
+ line.file = file;
+ line.number = line_num;
+ lines_->push_back(line);
+}
+
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/dwarf_line_to_module.h b/3rdParty/Breakpad/src/common/dwarf_line_to_module.h
new file mode 100644
index 0000000..9382e40
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/dwarf_line_to_module.h
@@ -0,0 +1,182 @@
+// -*- 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>
+
+// The DwarfLineToModule class accepts line number information from a
+// DWARF parser and adds it to a google_breakpad::Module. The Module
+// can write that data out as a Breakpad symbol file.
+
+#ifndef COMMON_LINUX_DWARF_LINE_TO_MODULE_H
+#define COMMON_LINUX_DWARF_LINE_TO_MODULE_H
+
+#include <string>
+
+#include "common/module.h"
+#include "common/dwarf/dwarf2reader.h"
+#include "common/using_std_string.h"
+
+namespace google_breakpad {
+
+// A class for producing a vector of google_breakpad::Module::Line
+// instances from parsed DWARF line number data.
+//
+// An instance of this class can be provided as a handler to a
+// dwarf2reader::LineInfo DWARF line number information parser. The
+// handler accepts source location information from the parser and
+// uses it to produce a vector of google_breakpad::Module::Line
+// objects, referring to google_breakpad::Module::File objects added
+// to a particular google_breakpad::Module.
+//
+// GNU toolchain omitted sections support:
+// ======================================
+//
+// Given the right options, the GNU toolchain will omit unreferenced
+// functions from the final executable. Unfortunately, when it does so, it
+// does not remove the associated portions of the DWARF line number
+// program; instead, it gives the DW_LNE_set_address instructions referring
+// to the now-deleted code addresses of zero. Given this input, the DWARF
+// line parser will call AddLine with a series of lines starting at address
+// zero. For example, here is the output from 'readelf -wl' for a program
+// with four functions, the first three of which have been omitted:
+//
+// Line Number Statements:
+// Extended opcode 2: set Address to 0x0
+// Advance Line by 14 to 15
+// Copy
+// Special opcode 48: advance Address by 3 to 0x3 and Line by 1 to 16
+// Special opcode 119: advance Address by 8 to 0xb and Line by 2 to 18
+// Advance PC by 2 to 0xd
+// Extended opcode 1: End of Sequence
+//
+// Extended opcode 2: set Address to 0x0
+// Advance Line by 14 to 15
+// Copy
+// Special opcode 48: advance Address by 3 to 0x3 and Line by 1 to 16
+// Special opcode 119: advance Address by 8 to 0xb and Line by 2 to 18
+// Advance PC by 2 to 0xd
+// Extended opcode 1: End of Sequence
+//
+// Extended opcode 2: set Address to 0x0
+// Advance Line by 19 to 20
+// Copy
+// Special opcode 48: advance Address by 3 to 0x3 and Line by 1 to 21
+// Special opcode 76: advance Address by 5 to 0x8 and Line by 1 to 22
+// Advance PC by 2 to 0xa
+// Extended opcode 1: End of Sequence
+//
+// Extended opcode 2: set Address to 0x80483a4
+// Advance Line by 23 to 24
+// Copy
+// Special opcode 202: advance Address by 14 to 0x80483b2 and Line by 1 to 25
+// Special opcode 76: advance Address by 5 to 0x80483b7 and Line by 1 to 26
+// Advance PC by 6 to 0x80483bd
+// Extended opcode 1: End of Sequence
+//
+// Instead of collecting runs of lines describing code that is not there,
+// we try to recognize and drop them. Since the linker doesn't explicitly
+// distinguish references to dropped sections from genuine references to
+// code at address zero, we must use a heuristic. We have chosen:
+//
+// - If a line starts at address zero, omit it. (On the platforms
+// breakpad targets, it is extremely unlikely that there will be code
+// at address zero.)
+//
+// - If a line starts immediately after an omitted line, omit it too.
+class DwarfLineToModule: public dwarf2reader::LineInfoHandler {
+ public:
+ // As the DWARF line info parser passes us line records, add source
+ // files to MODULE, and add all lines to the end of LINES. LINES
+ // need not be empty. If the parser hands us a zero-length line, we
+ // omit it. If the parser hands us a line that extends beyond the
+ // 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)
+ : module_(module),
+ lines_(lines),
+ highest_file_number_(-1),
+ omitted_line_end_(0),
+ warned_bad_file_number_(false),
+ warned_bad_directory_number_(false) { }
+
+ ~DwarfLineToModule() { }
+
+ void DefineDir(const string &name, uint32 dir_num);
+ void DefineFile(const string &name, int32 file_num,
+ uint32 dir_num, uint64 mod_time,
+ uint64 length);
+ void AddLine(uint64 address, uint64 length,
+ uint32 file_num, uint32 line_num, uint32 column_num);
+
+ private:
+
+ typedef std::map<uint32, string> DirectoryTable;
+ typedef std::map<uint32, Module::File *> FileTable;
+
+ // The module we're contributing debugging info to. Owned by our
+ // client.
+ Module *module_;
+
+ // The vector of lines we're accumulating. Owned by our client.
+ //
+ // In a Module, as in a breakpad symbol file, lines belong to
+ // specific functions, but DWARF simply assigns lines to addresses;
+ // one must infer the line/function relationship using the
+ // functions' beginning and ending addresses. So we can't add these
+ // to the appropriate function from module_ until we've read the
+ // function info as well. Instead, we accumulate lines here, and let
+ // whoever constructed this sort it all out.
+ vector<Module::Line> *lines_;
+
+ // A table mapping directory numbers to paths.
+ DirectoryTable directories_;
+
+ // A table mapping file numbers to Module::File pointers.
+ FileTable files_;
+
+ // The highest file number we've seen so far, or -1 if we've seen
+ // none. Used for dynamically defined file numbers.
+ int32 highest_file_number_;
+
+ // This is the ending address of the last line we omitted, or zero if we
+ // didn't omit the previous line. It is zero before we have received any
+ // AddLine calls.
+ uint64 omitted_line_end_;
+
+ // True if we've warned about:
+ bool warned_bad_file_number_; // bad file numbers
+ bool warned_bad_directory_number_; // bad directory numbers
+};
+
+} // namespace google_breakpad
+
+#endif // COMMON_LINUX_DWARF_LINE_TO_MODULE_H
diff --git a/3rdParty/Breakpad/src/common/language.cc b/3rdParty/Breakpad/src/common/language.cc
new file mode 100644
index 0000000..c2fd81f
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/language.cc
@@ -0,0 +1,83 @@
+// 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>
+
+// language.cc: Subclasses and singletons for google_breakpad::Language.
+// See language.h for details.
+
+#include "common/language.h"
+
+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;
+ }
+};
+
+CPPLanguage CPPLanguageSingleton;
+
+// Java language-specific operations.
+class JavaLanguage: public Language {
+ public:
+ string MakeQualifiedName(const string &parent_name,
+ const string &name) const {
+ if (parent_name.empty())
+ return name;
+ else
+ return parent_name + "." + name;
+ }
+};
+
+JavaLanguage JavaLanguageSingleton;
+
+// Assembler language-specific operations.
+class AssemblerLanguage: public Language {
+ bool HasFunctions() const { return false; }
+ string MakeQualifiedName(const string &parent_name,
+ const string &name) const {
+ return name;
+ }
+};
+
+AssemblerLanguage AssemblerLanguageSingleton;
+
+const Language * const Language::CPlusPlus = &CPPLanguageSingleton;
+const Language * const Language::Java = &JavaLanguageSingleton;
+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
new file mode 100644
index 0000000..bbe3033
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/language.h
@@ -0,0 +1,88 @@
+// -*- 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>
+
+// language.h: Define google_breakpad::Language. Instances of
+// subclasses of this class provide language-appropriate operations
+// for the Breakpad symbol dumper.
+
+#ifndef COMMON_LINUX_LANGUAGE_H__
+#define COMMON_LINUX_LANGUAGE_H__
+
+#include <string>
+
+#include "common/using_std_string.h"
+
+namespace google_breakpad {
+
+// An abstract base class for language-specific operations. We choose
+// an instance of a subclass of this when we find the CU's language.
+// This class's definitions are appropriate for CUs with no specified
+// language.
+class Language {
+ public:
+ // A base class destructor should be either public and virtual,
+ // or protected and nonvirtual.
+ virtual ~Language() {}
+
+ // Return true if this language has functions to which we can assign
+ // line numbers. (Debugging info for assembly language, for example,
+ // can have source location information, but does not have functions
+ // recorded using DW_TAG_subprogram DIEs.)
+ virtual bool HasFunctions() const { return true; }
+
+ // Construct a fully-qualified, language-appropriate form of NAME,
+ // given that PARENT_NAME is the name of the construct enclosing
+ // NAME. If PARENT_NAME is the empty string, then NAME is a
+ // top-level name.
+ //
+ // This API sort of assumes that a fully-qualified name is always
+ // some simple textual composition of the unqualified name and its
+ // parent's name, and that we don't need to know anything else about
+ // the parent or the child (say, their DIEs' tags) to do the job.
+ // This is true for the languages we support at the moment, and
+ // keeps things concrete. Perhaps a more refined operation would
+ // take into account the parent and child DIE types, allow languages
+ // to use their own data type for complex parent names, etc. But if
+ // C++ doesn't need all that, who would?
+ virtual string MakeQualifiedName (const string &parent_name,
+ const string &name) const = 0;
+
+ // Instances for specific languages.
+ static const Language * const CPlusPlus,
+ * const Java,
+ * const Assembler;
+};
+
+} // namespace google_breakpad
+
+#endif // COMMON_LINUX_LANGUAGE_H__
diff --git a/3rdParty/Breakpad/src/common/linux/linux_libc_support.h b/3rdParty/Breakpad/src/common/linux/linux_libc_support.h
new file mode 100644
index 0000000..b2f47af
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/linux/linux_libc_support.h
@@ -0,0 +1,95 @@
+// 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.
+
+// This header provides replacements for libc functions that we need. We if
+// call the libc functions directly we risk crashing in the dynamic linker as
+// it tries to resolve uncached PLT entries.
+
+#ifndef CLIENT_LINUX_LINUX_LIBC_SUPPORT_H_
+#define CLIENT_LINUX_LINUX_LIBC_SUPPORT_H_
+
+#include <stdint.h>
+#include <limits.h>
+#include <sys/types.h>
+
+extern "C" {
+
+extern size_t my_strlen(const char* s);
+
+extern int my_strcmp(const char* a, const char* b);
+
+extern int my_strncmp(const char* a, const char* b, size_t len);
+
+// Parse a non-negative integer.
+// result: (output) the resulting non-negative integer
+// s: a NUL terminated string
+// 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);
+
+// Convert a non-negative 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
+// 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);
+
+extern const char* my_strchr(const char* haystack, char needle);
+
+extern const char* my_strrchr(const char* haystack, char needle);
+
+// Read a hex value
+// result: (output) the resulting value
+// s: a string
+// Returns a pointer to the first invalid charactor.
+extern const char* my_read_hex_ptr(uintptr_t* result, const char* s);
+
+extern const char* my_read_decimal_ptr(uintptr_t* result, const char* s);
+
+extern void my_memset(void* ip, char 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
+#define my_memmove memmove
+#define my_memcmp memcmp
+
+extern size_t my_strlcpy(char* s1, const char* s2, size_t len);
+
+extern size_t my_strlcat(char* s1, const char* s2, size_t len);
+
+extern int my_isspace(int ch);
+
+} // extern "C"
+
+#endif // CLIENT_LINUX_LINUX_LIBC_SUPPORT_H_
diff --git a/3rdParty/Breakpad/src/common/mac/MachIPC.h b/3rdParty/Breakpad/src/common/mac/MachIPC.h
new file mode 100644
index 0000000..52bed59
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/MachIPC.h
@@ -0,0 +1,301 @@
+// 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.
+//
+// MachIPC.h
+//
+// Some helpful wrappers for using Mach IPC calls
+
+#ifndef MACH_IPC_H__
+#define MACH_IPC_H__
+
+#import <mach/mach.h>
+#import <mach/message.h>
+#import <servers/bootstrap.h>
+#import <sys/types.h>
+
+#import <CoreServices/CoreServices.h>
+
+//==============================================================================
+// DISCUSSION:
+//
+// The three main classes of interest are
+//
+// MachMessage: a wrapper for a mach message of the following form
+// mach_msg_header_t
+// mach_msg_body_t
+// optional descriptors
+// optional extra message data
+//
+// MachReceiveMessage and MachSendMessage subclass MachMessage
+// and are used instead of MachMessage which is an abstract base class
+//
+// ReceivePort:
+// Represents a mach port for which we have receive rights
+//
+// MachPortSender:
+// Represents a mach port for which we have send rights
+//
+// Here's an example to receive a message on a server port:
+//
+// // This creates our named server port
+// ReceivePort receivePort("com.Google.MyService");
+//
+// MachReceiveMessage message;
+// kern_return_t result = receivePort.WaitForMessage(&message, 0);
+//
+// if (result == KERN_SUCCESS && message.GetMessageID() == 57) {
+// mach_port_t task = message.GetTranslatedPort(0);
+// mach_port_t thread = message.GetTranslatedPort(1);
+//
+// char *messageString = message.GetData();
+//
+// printf("message string = %s\n", messageString);
+// }
+//
+// Here is an example of using these classes to send a message to this port:
+//
+// // send to already named port
+// MachPortSender sender("com.Google.MyService");
+// MachSendMessage message(57); // our message ID is 57
+//
+// // add some ports to be translated for us
+// message.AddDescriptor(mach_task_self()); // our task
+// message.AddDescriptor(mach_thread_self()); // this thread
+//
+// char messageString[] = "Hello server!\n";
+// message.SetData(messageString, strlen(messageString)+1);
+//
+// kern_return_t result = sender.SendMessage(message, 1000); // timeout 1000ms
+//
+
+namespace google_breakpad {
+#define PRINT_MACH_RESULT(result_, message_) \
+ printf(message_" %s (%d)\n", mach_error_string(result_), result_ );
+
+//==============================================================================
+// A wrapper class for mach_msg_port_descriptor_t (with same memory layout)
+// with convenient constructors and accessors
+class MachMsgPortDescriptor : public mach_msg_port_descriptor_t {
+ public:
+ // General-purpose constructor
+ MachMsgPortDescriptor(mach_port_t in_name,
+ mach_msg_type_name_t in_disposition) {
+ name = in_name;
+ pad1 = 0;
+ pad2 = 0;
+ disposition = in_disposition;
+ type = MACH_MSG_PORT_DESCRIPTOR;
+ }
+
+ // For passing send rights to a port
+ MachMsgPortDescriptor(mach_port_t in_name) {
+ name = in_name;
+ pad1 = 0;
+ pad2 = 0;
+ disposition = MACH_MSG_TYPE_COPY_SEND;
+ type = MACH_MSG_PORT_DESCRIPTOR;
+ }
+
+ // Copy constructor
+ MachMsgPortDescriptor(const MachMsgPortDescriptor& desc) {
+ name = desc.name;
+ pad1 = desc.pad1;
+ pad2 = desc.pad2;
+ disposition = desc.disposition;
+ type = desc.type;
+ }
+
+ mach_port_t GetMachPort() const {
+ return name;
+ }
+
+ mach_msg_type_name_t GetDisposition() const {
+ return disposition;
+ }
+
+ // For convenience
+ operator mach_port_t() const {
+ return GetMachPort();
+ }
+};
+
+//==============================================================================
+// MachMessage: a wrapper for a mach message
+// (mach_msg_header_t, mach_msg_body_t, extra data)
+//
+// This considerably simplifies the construction of a message for sending
+// and the getting at relevant data and descriptors for the receiver.
+//
+// Currently the combined size of the descriptors plus data must be
+// less than 1024. But as a benefit no memory allocation is necessary.
+//
+// TODO: could consider adding malloc() support for very large messages
+//
+// A MachMessage object is used by ReceivePort::WaitForMessage
+// and MachPortSender::SendMessage
+//
+class MachMessage {
+ public:
+
+ // The receiver of the message can retrieve the raw data this way
+ u_int8_t *GetData() {
+ return GetDataLength() > 0 ? GetDataPacket()->data : NULL;
+ }
+
+ u_int32_t GetDataLength() {
+ return EndianU32_LtoN(GetDataPacket()->data_length);
+ }
+
+ // The message ID may be used as a code identifying the type of message
+ void SetMessageID(int32_t message_id) {
+ GetDataPacket()->id = EndianU32_NtoL(message_id);
+ }
+
+ int32_t GetMessageID() { return EndianU32_LtoN(GetDataPacket()->id); }
+
+ // Adds a descriptor (typically a mach port) to be translated
+ // returns true if successful, otherwise not enough space
+ bool AddDescriptor(const MachMsgPortDescriptor &desc);
+
+ int GetDescriptorCount() const { return body.msgh_descriptor_count; }
+ MachMsgPortDescriptor *GetDescriptor(int n);
+
+ // Convenience method which gets the mach port described by the descriptor
+ mach_port_t GetTranslatedPort(int n);
+
+ // A simple message is one with no descriptors
+ bool IsSimpleMessage() const { return GetDescriptorCount() == 0; }
+
+ // Sets raw data for the message (returns false if not enough space)
+ bool SetData(void *data, int32_t data_length);
+
+ protected:
+ // Consider this an abstract base class - must create an actual instance
+ // of MachReceiveMessage or MachSendMessage
+
+ MachMessage() {
+ memset(this, 0, sizeof(MachMessage));
+ }
+
+ friend class ReceivePort;
+ friend class MachPortSender;
+
+ // Represents raw data in our message
+ struct MessageDataPacket {
+ int32_t id; // little-endian
+ int32_t data_length; // little-endian
+ u_int8_t data[1]; // actual size limited by sizeof(MachMessage)
+ };
+
+ MessageDataPacket* GetDataPacket();
+
+ void SetDescriptorCount(int n);
+ void SetDescriptor(int n, const MachMsgPortDescriptor &desc);
+
+ // Returns total message size setting msgh_size in the header to this value
+ mach_msg_size_t CalculateSize();
+
+ mach_msg_header_t head;
+ mach_msg_body_t body;
+ u_int8_t padding[1024]; // descriptors and data may be embedded here
+};
+
+//==============================================================================
+// MachReceiveMessage and MachSendMessage are useful to separate the idea
+// of a mach message being sent and being received, and adds increased type
+// safety:
+// ReceivePort::WaitForMessage() only accepts a MachReceiveMessage
+// MachPortSender::SendMessage() only accepts a MachSendMessage
+
+//==============================================================================
+class MachReceiveMessage : public MachMessage {
+ public:
+ MachReceiveMessage() : MachMessage() {};
+};
+
+//==============================================================================
+class MachSendMessage : public MachMessage {
+ public:
+ MachSendMessage(int32_t message_id);
+};
+
+//==============================================================================
+// Represents a mach port for which we have receive rights
+class ReceivePort {
+ public:
+ // Creates a new mach port for receiving messages and registers a name for it
+ explicit ReceivePort(const char *receive_port_name);
+
+ // Given an already existing mach port, use it. We take ownership of the
+ // port and deallocate it in our destructor.
+ explicit ReceivePort(mach_port_t receive_port);
+
+ // Create a new mach port for receiving messages
+ ReceivePort();
+
+ ~ReceivePort();
+
+ // Waits on the mach port until message received or timeout
+ kern_return_t WaitForMessage(MachReceiveMessage *out_message,
+ mach_msg_timeout_t timeout);
+
+ // The underlying mach port that we wrap
+ mach_port_t GetPort() const { return port_; }
+
+ private:
+ ReceivePort(const ReceivePort&); // disable copy c-tor
+
+ mach_port_t port_;
+ kern_return_t init_result_;
+};
+
+//==============================================================================
+// Represents a mach port for which we have send rights
+class MachPortSender {
+ public:
+ // get a port with send rights corresponding to a named registered service
+ explicit MachPortSender(const char *receive_port_name);
+
+
+ // Given an already existing mach port, use it.
+ explicit MachPortSender(mach_port_t send_port);
+
+ kern_return_t SendMessage(MachSendMessage &message,
+ mach_msg_timeout_t timeout);
+
+ private:
+ MachPortSender(const MachPortSender&); // disable copy c-tor
+
+ mach_port_t send_port_;
+ kern_return_t init_result_;
+};
+
+} // namespace google_breakpad
+
+#endif // MACH_IPC_H__
diff --git a/3rdParty/Breakpad/src/common/mac/MachIPC.mm b/3rdParty/Breakpad/src/common/mac/MachIPC.mm
new file mode 100644
index 0000000..dc9773f
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/MachIPC.mm
@@ -0,0 +1,306 @@
+// 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.
+//
+// MachIPC.mm
+// Wrapper for mach IPC calls
+
+#import <stdio.h>
+#import "MachIPC.h"
+#include "common/mac/bootstrap_compat.h"
+
+namespace google_breakpad {
+//==============================================================================
+MachSendMessage::MachSendMessage(int32_t message_id) : MachMessage() {
+ head.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0);
+
+ // head.msgh_remote_port = ...; // filled out in MachPortSender::SendMessage()
+ head.msgh_local_port = MACH_PORT_NULL;
+ head.msgh_reserved = 0;
+ head.msgh_id = 0;
+
+ SetDescriptorCount(0); // start out with no descriptors
+
+ SetMessageID(message_id);
+ SetData(NULL, 0); // client may add data later
+}
+
+//==============================================================================
+// returns true if successful
+bool MachMessage::SetData(void *data,
+ int32_t data_length) {
+ // first check to make sure we have enough space
+ size_t size = CalculateSize();
+ size_t new_size = size + data_length;
+
+ if (new_size > sizeof(MachMessage)) {
+ return false; // not enough space
+ }
+
+ GetDataPacket()->data_length = EndianU32_NtoL(data_length);
+ if (data) memcpy(GetDataPacket()->data, data, data_length);
+
+ CalculateSize();
+
+ return true;
+}
+
+//==============================================================================
+// calculates and returns the total size of the message
+// Currently, the entire message MUST fit inside of the MachMessage
+// messsage size <= sizeof(MachMessage)
+mach_msg_size_t MachMessage::CalculateSize() {
+ size_t size = sizeof(mach_msg_header_t) + sizeof(mach_msg_body_t);
+
+ // add space for MessageDataPacket
+ int32_t alignedDataLength = (GetDataLength() + 3) & ~0x3;
+ size += 2*sizeof(int32_t) + alignedDataLength;
+
+ // add space for descriptors
+ size += GetDescriptorCount() * sizeof(MachMsgPortDescriptor);
+
+ head.msgh_size = static_cast<mach_msg_size_t>(size);
+
+ return head.msgh_size;
+}
+
+//==============================================================================
+MachMessage::MessageDataPacket *MachMessage::GetDataPacket() {
+ size_t desc_size = sizeof(MachMsgPortDescriptor)*GetDescriptorCount();
+ MessageDataPacket *packet =
+ reinterpret_cast<MessageDataPacket*>(padding + desc_size);
+
+ return packet;
+}
+
+//==============================================================================
+void MachMessage::SetDescriptor(int n,
+ const MachMsgPortDescriptor &desc) {
+ MachMsgPortDescriptor *desc_array =
+ reinterpret_cast<MachMsgPortDescriptor*>(padding);
+ desc_array[n] = desc;
+}
+
+//==============================================================================
+// returns true if successful otherwise there was not enough space
+bool MachMessage::AddDescriptor(const MachMsgPortDescriptor &desc) {
+ // first check to make sure we have enough space
+ int size = CalculateSize();
+ size_t new_size = size + sizeof(MachMsgPortDescriptor);
+
+ if (new_size > sizeof(MachMessage)) {
+ return false; // not enough space
+ }
+
+ // unfortunately, we need to move the data to allow space for the
+ // new descriptor
+ u_int8_t *p = reinterpret_cast<u_int8_t*>(GetDataPacket());
+ bcopy(p, p+sizeof(MachMsgPortDescriptor), GetDataLength()+2*sizeof(int32_t));
+
+ SetDescriptor(GetDescriptorCount(), desc);
+ SetDescriptorCount(GetDescriptorCount() + 1);
+
+ CalculateSize();
+
+ return true;
+}
+
+//==============================================================================
+void MachMessage::SetDescriptorCount(int n) {
+ body.msgh_descriptor_count = n;
+
+ if (n > 0) {
+ head.msgh_bits |= MACH_MSGH_BITS_COMPLEX;
+ } else {
+ head.msgh_bits &= ~MACH_MSGH_BITS_COMPLEX;
+ }
+}
+
+//==============================================================================
+MachMsgPortDescriptor *MachMessage::GetDescriptor(int n) {
+ if (n < GetDescriptorCount()) {
+ MachMsgPortDescriptor *desc =
+ reinterpret_cast<MachMsgPortDescriptor*>(padding);
+ return desc + n;
+ }
+
+ return nil;
+}
+
+//==============================================================================
+mach_port_t MachMessage::GetTranslatedPort(int n) {
+ if (n < GetDescriptorCount()) {
+ return GetDescriptor(n)->GetMachPort();
+ }
+ return MACH_PORT_NULL;
+}
+
+#pragma mark -
+
+//==============================================================================
+// create a new mach port for receiving messages and register a name for it
+ReceivePort::ReceivePort(const char *receive_port_name) {
+ mach_port_t current_task = mach_task_self();
+
+ init_result_ = mach_port_allocate(current_task,
+ MACH_PORT_RIGHT_RECEIVE,
+ &port_);
+
+ if (init_result_ != KERN_SUCCESS)
+ return;
+
+ init_result_ = mach_port_insert_right(current_task,
+ port_,
+ port_,
+ MACH_MSG_TYPE_MAKE_SEND);
+
+ if (init_result_ != KERN_SUCCESS)
+ return;
+
+ mach_port_t task_bootstrap_port = 0;
+ init_result_ = task_get_bootstrap_port(current_task, &task_bootstrap_port);
+
+ if (init_result_ != KERN_SUCCESS)
+ return;
+
+ init_result_ = breakpad::BootstrapRegister(
+ bootstrap_port,
+ const_cast<char*>(receive_port_name),
+ port_);
+}
+
+//==============================================================================
+// create a new mach port for receiving messages
+ReceivePort::ReceivePort() {
+ mach_port_t current_task = mach_task_self();
+
+ init_result_ = mach_port_allocate(current_task,
+ MACH_PORT_RIGHT_RECEIVE,
+ &port_);
+
+ if (init_result_ != KERN_SUCCESS)
+ return;
+
+ init_result_ = mach_port_insert_right(current_task,
+ port_,
+ port_,
+ MACH_MSG_TYPE_MAKE_SEND);
+}
+
+//==============================================================================
+// Given an already existing mach port, use it. We take ownership of the
+// port and deallocate it in our destructor.
+ReceivePort::ReceivePort(mach_port_t receive_port)
+ : port_(receive_port),
+ init_result_(KERN_SUCCESS) {
+}
+
+//==============================================================================
+ReceivePort::~ReceivePort() {
+ if (init_result_ == KERN_SUCCESS)
+ mach_port_deallocate(mach_task_self(), port_);
+}
+
+//==============================================================================
+kern_return_t ReceivePort::WaitForMessage(MachReceiveMessage *out_message,
+ mach_msg_timeout_t timeout) {
+ if (!out_message) {
+ return KERN_INVALID_ARGUMENT;
+ }
+
+ // return any error condition encountered in constructor
+ if (init_result_ != KERN_SUCCESS)
+ return init_result_;
+
+ out_message->head.msgh_bits = 0;
+ out_message->head.msgh_local_port = port_;
+ out_message->head.msgh_remote_port = MACH_PORT_NULL;
+ out_message->head.msgh_reserved = 0;
+ out_message->head.msgh_id = 0;
+
+ mach_msg_option_t options = MACH_RCV_MSG;
+ if (timeout != MACH_MSG_TIMEOUT_NONE)
+ options |= MACH_RCV_TIMEOUT;
+ kern_return_t result = mach_msg(&out_message->head,
+ options,
+ 0,
+ sizeof(MachMessage),
+ port_,
+ timeout, // timeout in ms
+ MACH_PORT_NULL);
+
+ return result;
+}
+
+#pragma mark -
+
+//==============================================================================
+// get a port with send rights corresponding to a named registered service
+MachPortSender::MachPortSender(const char *receive_port_name) {
+ mach_port_t task_bootstrap_port = 0;
+ init_result_ = task_get_bootstrap_port(mach_task_self(),
+ &task_bootstrap_port);
+
+ if (init_result_ != KERN_SUCCESS)
+ return;
+
+ init_result_ = bootstrap_look_up(task_bootstrap_port,
+ const_cast<char*>(receive_port_name),
+ &send_port_);
+}
+
+//==============================================================================
+MachPortSender::MachPortSender(mach_port_t send_port)
+ : send_port_(send_port),
+ init_result_(KERN_SUCCESS) {
+}
+
+//==============================================================================
+kern_return_t MachPortSender::SendMessage(MachSendMessage &message,
+ mach_msg_timeout_t timeout) {
+ if (message.head.msgh_size == 0) {
+ return KERN_INVALID_VALUE; // just for safety -- never should occur
+ };
+
+ if (init_result_ != KERN_SUCCESS)
+ return init_result_;
+
+ message.head.msgh_remote_port = send_port_;
+
+ kern_return_t result = mach_msg(&message.head,
+ MACH_SEND_MSG | MACH_SEND_TIMEOUT,
+ message.head.msgh_size,
+ 0,
+ MACH_PORT_NULL,
+ timeout, // timeout in ms
+ MACH_PORT_NULL);
+
+ return result;
+}
+
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/mac/bootstrap_compat.cc b/3rdParty/Breakpad/src/common/mac/bootstrap_compat.cc
new file mode 100644
index 0000000..d875d95
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/bootstrap_compat.cc
@@ -0,0 +1,42 @@
+// 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/bootstrap_compat.h"
+
+namespace breakpad {
+
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+kern_return_t BootstrapRegister(mach_port_t bp,
+ name_t service_name,
+ mach_port_t sp) {
+ return bootstrap_register(bp, service_name, sp);
+}
+#pragma GCC diagnostic warning "-Wdeprecated-declarations"
+
+} // namesapce breakpad
diff --git a/3rdParty/Breakpad/src/common/mac/bootstrap_compat.h b/3rdParty/Breakpad/src/common/mac/bootstrap_compat.h
new file mode 100644
index 0000000..8ca7357
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/bootstrap_compat.h
@@ -0,0 +1,54 @@
+// 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.
+
+#ifndef COMMON_MAC_BOOTSTRAP_COMPAT_H_
+#define COMMON_MAC_BOOTSTRAP_COMPAT_H_
+
+#include <servers/bootstrap.h>
+
+namespace breakpad {
+
+// Wrapper for bootstrap_register to avoid deprecation warnings.
+//
+// In 10.6, it's possible to call bootstrap_check_in as the one-stop-shop for
+// handling what bootstrap_register is used for. In 10.5, bootstrap_check_in
+// can't check in a service whose name has not yet been registered, despite
+// bootstrap_register being marked as deprecated in that OS release. Breakpad
+// needs to register new service names, and in 10.5, calling
+// bootstrap_register is the only way to achieve that. Attempts to call
+// bootstrap_check_in for a new service name on 10.5 will result in
+// BOOTSTRAP_UNKNOWN_SERVICE being returned rather than registration of the
+// new service name.
+kern_return_t BootstrapRegister(mach_port_t bp,
+ name_t service_name,
+ mach_port_t sp);
+
+} // namespace breakpad
+
+#endif // COMMON_MAC_BOOTSTRAP_COMPAT_H_
diff --git a/3rdParty/Breakpad/src/common/mac/byteswap.h b/3rdParty/Breakpad/src/common/mac/byteswap.h
new file mode 100644
index 0000000..a5d745b
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/byteswap.h
@@ -0,0 +1,48 @@
+// -*- 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 <jim@mozilla.com> <jimb@red-bean.com>
+
+// byteswap.h: Overloaded functions for conveniently byteswapping values.
+
+#ifndef COMMON_MAC_BYTESWAP_H_
+#define COMMON_MAC_BYTESWAP_H_
+
+#include <libkern/OSByteOrder.h>
+
+static inline uint16_t ByteSwap(uint16_t v) { return OSSwapInt16(v); }
+static inline uint32_t ByteSwap(uint32_t v) { return OSSwapInt32(v); }
+static inline uint64_t ByteSwap(uint64_t v) { return OSSwapInt64(v); }
+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); }
+
+#endif // COMMON_MAC_BYTESWAP_H_
diff --git a/3rdParty/Breakpad/src/common/mac/dump_syms.h b/3rdParty/Breakpad/src/common/mac/dump_syms.h
new file mode 100644
index 0000000..0e2f464
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/dump_syms.h
@@ -0,0 +1,172 @@
+// -*- mode: c++ -*-
+
+// 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.
+
+// Author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
+
+// dump_syms.h: Declaration of google_breakpad::DumpSymbols, a class for
+// 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>
+
+#include <ostream>
+#include <string>
+#include <vector>
+
+#include "common/byte_cursor.h"
+#include "common/mac/macho_reader.h"
+#include "common/module.h"
+
+namespace google_breakpad {
+
+class DumpSymbols {
+ public:
+ DumpSymbols()
+ : input_pathname_(),
+ object_filename_(),
+ contents_(),
+ 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);
+
+ // If this dumper's file includes an object file for |cpu_type| and
+ // |cpu_subtype|, then select that object file for dumping, and return
+ // true. Otherwise, return false, and leave this dumper's selected
+ // architecture unchanged.
+ //
+ // By default, if this dumper's file contains only one object file, then
+ // the dumper will dump those symbols; and if it contains more than one
+ // object file, then the dumper will dump the object file whose
+ // architecture matches that of this dumper program.
+ bool SetArchitecture(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype);
+
+ // If this dumper's file includes an object file for |arch_name|, then select
+ // that object file for dumping, and return true. Otherwise, return false,
+ // and leave this dumper's selected architecture unchanged.
+ //
+ // By default, if this dumper's file contains only one object file, then
+ // the dumper will dump those symbols; and if it contains more than one
+ // object file, then the dumper will dump the object file whose
+ // 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.
+ //
+ // If there are no available architectures, this function
+ // may return NULL.
+ const struct fat_arch *AvailableArchitectures(size_t *count) {
+ *count = object_files_.size();
+ if (object_files_.size() > 0)
+ return &object_files_[0];
+ return NULL;
+ }
+
+ // 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);
+
+ private:
+ // Used internally.
+ class DumperLineToModule;
+ class LoadCommandDumper;
+
+ // Return an identifier string for the file this DumpSymbols is dumping.
+ std::string Identifier();
+
+ // 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;
+
+ // Read DWARF CFI or .eh_frame data from |section|, belonging to
+ // |macho_reader|, and record it in |module|. If |eh_frame| is true,
+ // then the data is .eh_frame-format data; otherwise, it is standard DWARF
+ // .debug_frame data. On success, return true; on failure, report
+ // the problem and return false.
+ bool ReadCFI(google_breakpad::Module *module,
+ const mach_o::Reader &macho_reader,
+ const mach_o::Section &section,
+ bool eh_frame) const;
+
+ // 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_;
+
+ // 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_;
+
+ // The complete contents of object_filename_, mapped into memory.
+ NSData *contents_;
+
+ // A vector of fat_arch 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_;
+
+ // 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_;
+
+ // A string that identifies the selected object file, for use in error
+ // messages. This is usually object_filename_, but if that refers to a
+ // fat binary, it includes an indication of the particular architecture
+ // within that binary.
+ string selected_object_name_;
+};
+
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/mac/dump_syms.mm b/3rdParty/Breakpad/src/common/mac/dump_syms.mm
new file mode 100644
index 0000000..9783514
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/dump_syms.mm
@@ -0,0 +1,496 @@
+// -*- mode: c++ -*-
+
+// 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.
+
+// Author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
+
+// dump_syms.mm: Create a symbol file for use with minidumps
+
+#include "common/mac/dump_syms.h"
+
+#include <Foundation/Foundation.h>
+#include <mach-o/arch.h>
+#include <mach-o/fat.h>
+#include <stdio.h>
+
+#include <ostream>
+#include <string>
+#include <vector>
+
+#include "common/dwarf/bytereader-inl.h"
+#include "common/dwarf/dwarf2reader.h"
+#include "common/dwarf_cfi_to_module.h"
+#include "common/dwarf_cu_to_module.h"
+#include "common/dwarf_line_to_module.h"
+#include "common/mac/file_id.h"
+#include "common/mac/macho_reader.h"
+#include "common/module.h"
+#include "common/stabs_reader.h"
+#include "common/stabs_to_module.h"
+
+#ifndef CPU_TYPE_ARM
+#define CPU_TYPE_ARM (static_cast<cpu_type_t>(12))
+#endif // CPU_TYPE_ARM
+
+using dwarf2reader::ByteReader;
+using google_breakpad::DwarfCUToModule;
+using google_breakpad::DwarfLineToModule;
+using google_breakpad::FileID;
+using google_breakpad::mach_o::FatReader;
+using google_breakpad::mach_o::Section;
+using google_breakpad::mach_o::Segment;
+using google_breakpad::Module;
+using google_breakpad::StabsReader;
+using google_breakpad::StabsToModule;
+using std::make_pair;
+using std::pair;
+using std::string;
+using std::vector;
+
+namespace google_breakpad {
+
+bool DumpSymbols::Read(NSString *filename) {
+ if (![[NSFileManager defaultManager] fileExistsAtPath:filename]) {
+ fprintf(stderr, "Object file does not exist: %s\n",
+ [filename fileSystemRepresentation]);
+ return false;
+ }
+
+ input_pathname_ = [filename retain];
+
+ // 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);
+
+ object_filename_ = [dwarf_resource retain];
+ } else {
+ object_filename_ = [input_pathname_ retain];
+ }
+
+ // 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_) {
+ fprintf(stderr, "Error reading object file: %s: %s\n",
+ [object_filename_ fileSystemRepresentation],
+ [[error localizedDescription] UTF8String]);
+ return false;
+ }
+ [contents_ retain];
+
+ // Get the list of object files present in the file.
+ FatReader::Reporter fat_reporter([object_filename_
+ fileSystemRepresentation]);
+ FatReader fat_reader(&fat_reporter);
+ if (!fat_reader.Read(reinterpret_cast<const uint8_t *>([contents_ bytes]),
+ [contents_ length])) {
+ return false;
+ }
+
+ // Get our own copy of fat_reader's object file list.
+ size_t object_files_count;
+ const struct fat_arch *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]);
+ return false;
+ }
+ object_files_.resize(object_files_count);
+ memcpy(&object_files_[0], object_files,
+ sizeof(struct fat_arch) * object_files_count);
+
+ return true;
+}
+
+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()));
+ if (!best_match) return false;
+
+ // Record the selected object file.
+ selected_object_file_ = best_match;
+ return true;
+}
+
+bool DumpSymbols::SetArchitecture(const std::string &arch_name) {
+ bool arch_set = false;
+ const NXArchInfo *arch_info = NXGetArchInfoFromName(arch_name.c_str());
+ if (arch_info) {
+ arch_set = SetArchitecture(arch_info->cputype, arch_info->cpusubtype);
+ }
+ return arch_set;
+}
+
+string DumpSymbols::Identifier() {
+ FileID file_id([object_filename_ fileSystemRepresentation]);
+ unsigned char identifier_bytes[16];
+ cpu_type_t cpu_type = selected_object_file_->cputype;
+ if (!file_id.MachoIdentifier(cpu_type, identifier_bytes)) {
+ fprintf(stderr, "Unable to calculate UUID of mach-o binary %s!\n",
+ [object_filename_ fileSystemRepresentation]);
+ return "";
+ }
+
+ char identifier_string[40];
+ FileID::ConvertIdentifierToString(identifier_bytes, identifier_string,
+ sizeof(identifier_string));
+
+ string compacted(identifier_string);
+ for(size_t i = compacted.find('-'); i != string::npos;
+ i = compacted.find('-', i))
+ compacted.erase(i, 1);
+
+ return compacted;
+}
+
+// A line-to-module loader that accepts line number info parsed by
+// dwarf2reader::LineInfo and populates a Module and a line vector
+// with the results.
+class DumpSymbols::DumperLineToModule:
+ public DwarfCUToModule::LineToModuleFunctor {
+ 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);
+ dwarf2reader::LineInfo parser(program, length, byte_reader_, &handler);
+ parser.Start();
+ }
+ private:
+ dwarf2reader::ByteReader *byte_reader_; // WEAK
+};
+
+bool DumpSymbols::ReadDwarf(google_breakpad::Module *module,
+ const mach_o::Reader &macho_reader,
+ const mach_o::SectionMap &dwarf_sections) const {
+ // Build a byte reader of the appropriate endianness.
+ ByteReader byte_reader(macho_reader.big_endian()
+ ? dwarf2reader::ENDIANNESS_BIG
+ : dwarf2reader::ENDIANNESS_LITTLE);
+
+ // Construct a context for this file.
+ DwarfCUToModule::FileContext file_context(selected_object_name_,
+ module);
+
+ // 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());
+ }
+
+ // Find the __debug_info section.
+ std::pair<const char *, uint64> debug_info_section
+ = file_context.section_map["__debug_info"];
+ // 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",
+ selected_object_name_.c_str());
+ return false;
+ }
+
+ // Build a line-to-module loader for the root handler to use.
+ DumperLineToModule line_to_module(&byte_reader);
+
+ // Walk the __debug_info section, one compilation unit at a time.
+ uint64 debug_info_length = debug_info_section.second;
+ for (uint64 offset = 0; offset < debug_info_length;) {
+ // Make a handler for the root DIE that populates MODULE with the
+ // debug info.
+ DwarfCUToModule::WarningReporter reporter(selected_object_name_,
+ offset);
+ DwarfCUToModule root_handler(&file_context, &line_to_module, &reporter);
+ // 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,
+ offset,
+ &byte_reader,
+ &die_dispatcher);
+ // Process the entire compilation unit; get the offset of the next.
+ offset += dwarf_reader.Start();
+ }
+
+ return true;
+}
+
+bool DumpSymbols::ReadCFI(google_breakpad::Module *module,
+ const mach_o::Reader &macho_reader,
+ const mach_o::Section &section,
+ bool eh_frame) const {
+ // Find the appropriate set of register names for this file's
+ // architecture.
+ vector<string> register_names;
+ switch (macho_reader.cpu_type()) {
+ case CPU_TYPE_X86:
+ register_names = DwarfCFIToModule::RegisterNames::I386();
+ break;
+ case CPU_TYPE_X86_64:
+ register_names = DwarfCFIToModule::RegisterNames::X86_64();
+ break;
+ case CPU_TYPE_ARM:
+ register_names = DwarfCFIToModule::RegisterNames::ARM();
+ break;
+ default: {
+ const NXArchInfo *arch =
+ NXGetArchInfoFromCpuType(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)
+ fprintf(stderr, "architecture '%s'", arch->name);
+ else
+ fprintf(stderr, "architecture %d,%d",
+ macho_reader.cpu_type(), macho_reader.cpu_subtype());
+ fprintf(stderr, " to Breakpad symbol file: no register name table\n");
+ return false;
+ }
+ }
+
+ // Find the call frame information and its size.
+ const char *cfi = reinterpret_cast<const char *>(section.contents.start);
+ size_t cfi_size = section.contents.Size();
+
+ // Plug together the parser, handler, and their entourages.
+ DwarfCFIToModule::Reporter module_reporter(selected_object_name_,
+ section.section_name);
+ DwarfCFIToModule handler(module, register_names, &module_reporter);
+ dwarf2reader::ByteReader byte_reader(macho_reader.big_endian() ?
+ dwarf2reader::ENDIANNESS_BIG :
+ dwarf2reader::ENDIANNESS_LITTLE);
+ byte_reader.SetAddressSize(macho_reader.bits_64() ? 8 : 4);
+ // At the moment, according to folks at Apple and some cursory
+ // investigation, Mac OS X only uses DW_EH_PE_pcrel-based pointers, so
+ // this is the only base address the CFI parser will need.
+ byte_reader.SetCFIDataBase(section.address, cfi);
+
+ dwarf2reader::CallFrameInfo::Reporter dwarf_reporter(selected_object_name_,
+ section.section_name);
+ dwarf2reader::CallFrameInfo parser(cfi, cfi_size,
+ &byte_reader, &handler, &dwarf_reporter,
+ eh_frame);
+ parser.Start();
+ return true;
+}
+
+// A LoadCommandHandler that loads whatever debugging data it finds into a
+// Module.
+class DumpSymbols::LoadCommandDumper:
+ public mach_o::Reader::LoadCommandHandler {
+ public:
+ // Create a load command dumper handling load commands from READER's
+ // 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) { }
+
+ bool SegmentCommand(const mach_o::Segment &segment);
+ bool SymtabCommand(const ByteBuffer &entries, const ByteBuffer &strings);
+
+ private:
+ const DumpSymbols &dumper_;
+ google_breakpad::Module *module_; // WEAK
+ const mach_o::Reader &reader_;
+};
+
+bool DumpSymbols::LoadCommandDumper::SegmentCommand(const Segment &segment) {
+ mach_o::SectionMap section_map;
+ if (!reader_.MapSegmentSections(segment, &section_map))
+ return false;
+
+ 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);
+ }
+ 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);
+ }
+ }
+
+ return true;
+}
+
+bool DumpSymbols::LoadCommandDumper::SymtabCommand(const ByteBuffer &entries,
+ const ByteBuffer &strings) {
+ StabsToModule stabs_to_module(module_);
+ // Mac OS X STABS are never "unitized", and the size of the 'value' field
+ // matches the address size of the executable.
+ StabsReader stabs_reader(entries.start, entries.Size(),
+ strings.start, strings.Size(),
+ reader_.big_endian(),
+ reader_.bits_64() ? 8 : 4,
+ true,
+ &stabs_to_module);
+ if (!stabs_reader.Process())
+ return false;
+ stabs_to_module.Finalize();
+ 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())
+ 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])
+ + selected_object_file_->offset,
+ selected_object_file_->size,
+ selected_object_file_->cputype,
+ selected_object_file_->cpusubtype))
+ return false;
+
+ // Walk its load commands, and deal with whatever is there.
+ LoadCommandDumper load_command_dumper(*this, &module, reader);
+ if (!reader.WalkLoadCommands(&load_command_dumper))
+ return false;
+
+ return module.Write(stream, cfi);
+}
+
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/mac/file_id.cc b/3rdParty/Breakpad/src/common/mac/file_id.cc
new file mode 100644
index 0000000..50502e4
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/file_id.cc
@@ -0,0 +1,101 @@
+// 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.
+
+// file_id.cc: Return a unique identifier for a file
+//
+// See file_id.h for documentation
+//
+// Author: Dan Waylonis
+
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "common/mac/file_id.h"
+#include "common/mac/macho_id.h"
+
+using MacFileUtilities::MachoID;
+
+namespace google_breakpad {
+
+FileID::FileID(const char *path) {
+ strlcpy(path_, path, sizeof(path_));
+}
+
+bool FileID::FileIdentifier(unsigned char identifier[16]) {
+ int fd = open(path_, O_RDONLY);
+ if (fd == -1)
+ return false;
+
+ MD5Context md5;
+ MD5Init(&md5);
+
+ // Read 4k x 2 bytes at a time. This is faster than just 4k bytes, but
+ // doesn't seem to be an unreasonable size for the stack.
+ 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);
+ }
+
+ close(fd);
+ MD5Final(identifier, &md5);
+
+ return true;
+}
+
+bool FileID::MachoIdentifier(int cpu_type, unsigned char identifier[16]) {
+ MachoID macho(path_);
+
+ if (macho.UUIDCommand(cpu_type, identifier))
+ return true;
+
+ return macho.MD5(cpu_type, identifier);
+}
+
+// static
+void FileID::ConvertIdentifierToString(const unsigned char identifier[16],
+ char *buffer, int buffer_length) {
+ int buffer_idx = 0;
+ for (int idx = 0; (buffer_idx < buffer_length) && (idx < 16); ++idx) {
+ int hi = (identifier[idx] >> 4) & 0x0F;
+ int lo = (identifier[idx]) & 0x0F;
+
+ 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;
+ }
+
+ // NULL terminate
+ buffer[(buffer_idx < buffer_length) ? buffer_idx : buffer_idx - 1] = 0;
+}
+
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/mac/file_id.h b/3rdParty/Breakpad/src/common/mac/file_id.h
new file mode 100644
index 0000000..eb06b0d
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/file_id.h
@@ -0,0 +1,78 @@
+// 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.
+
+// file_id.h: Return a unique identifier for a file
+//
+// Author: Dan Waylonis
+
+#ifndef COMMON_MAC_FILE_ID_H__
+#define COMMON_MAC_FILE_ID_H__
+
+#include <limits.h>
+
+namespace google_breakpad {
+
+class FileID {
+ public:
+ FileID(const char *path);
+ ~FileID() {};
+
+ // Load the identifier for the file path specified in the constructor into
+ // |identifier|. Return false if the identifier could not be created for the
+ // file.
+ // The current implementation will return the MD5 hash of the file's bytes.
+ 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.
+ // 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]);
+
+ // Convert the |identifier| data to a NULL terminated string. The string will
+ // be formatted as a UUID (e.g., 22F065BB-FC9C-49F7-80FE-26A7CEBD7BCE).
+ // The |buffer| should be at least 37 bytes long to receive all of the data
+ // and termination. Shorter buffers will contain truncated data.
+ static void ConvertIdentifierToString(const unsigned char identifier[16],
+ char *buffer, int buffer_length);
+
+ private:
+ // Storage for the path specified
+ char path_[PATH_MAX];
+};
+
+} // namespace google_breakpad
+
+#endif // COMMON_MAC_FILE_ID_H__
+
diff --git a/3rdParty/Breakpad/src/common/mac/macho_id.cc b/3rdParty/Breakpad/src/common/mac/macho_id.cc
new file mode 100644
index 0000000..abe1fab
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/macho_id.cc
@@ -0,0 +1,366 @@
+// 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.
+
+// macho_id.cc: Functions to gather identifying information from a macho file
+//
+// See macho_id.h for documentation
+//
+// 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 "common/mac/macho_id.h"
+#include "common/mac/macho_walker.h"
+#include "common/mac/macho_utilities.h"
+
+namespace MacFileUtilities {
+
+using google_breakpad::MD5Init;
+using google_breakpad::MD5Update;
+using google_breakpad::MD5Final;
+
+MachoID::MachoID(const char *path)
+ : memory_(0),
+ memory_size_(0),
+ crc_(0),
+ md5_context_(),
+ update_function_(NULL) {
+ strlcpy(path_, path, sizeof(path_));
+}
+
+MachoID::MachoID(const char *path, void *memory, size_t size)
+ : memory_(memory),
+ memory_size_(size),
+ crc_(0),
+ md5_context_(),
+ update_function_(NULL) {
+ strlcpy(path_, path, sizeof(path_));
+}
+
+MachoID::~MachoID() {
+}
+
+// The CRC info is from http://en.wikipedia.org/wiki/Adler-32
+// With optimizations from http://www.zlib.net/
+
+// The largest prime smaller than 65536
+#define MOD_ADLER 65521
+// MAX_BLOCK is the largest n such that 255n(n+1)/2 + (n+1)(MAX_BLOCK-1) <= 2^32-1
+#define MAX_BLOCK 5552
+
+void MachoID::UpdateCRC(unsigned char *bytes, size_t size) {
+// Unrolled loops for summing
+#define DO1(buf,i) {sum1 += (buf)[i]; sum2 += sum1;}
+#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1);
+#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2);
+#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4);
+#define DO16(buf) DO8(buf,0); DO8(buf,8);
+ // Split up the crc
+ uint32_t sum1 = crc_ & 0xFFFF;
+ uint32_t sum2 = (crc_ >> 16) & 0xFFFF;
+
+ // Do large blocks
+ while (size >= MAX_BLOCK) {
+ size -= MAX_BLOCK;
+ int block_count = MAX_BLOCK / 16;
+ do {
+ DO16(bytes);
+ bytes += 16;
+ } while (--block_count);
+ sum1 %= MOD_ADLER;
+ sum2 %= MOD_ADLER;
+ }
+
+ // Do remaining bytes
+ if (size) {
+ while (size >= 16) {
+ size -= 16;
+ DO16(bytes);
+ bytes += 16;
+ }
+ while (size--) {
+ sum1 += *bytes++;
+ sum2 += sum1;
+ }
+ sum1 %= MOD_ADLER;
+ sum2 %= MOD_ADLER;
+ crc_ = (sum2 << 16) | sum1;
+ }
+}
+
+void MachoID::UpdateMD5(unsigned char *bytes, size_t size) {
+ MD5Update(&md5_context_, bytes, size);
+}
+
+void MachoID::Update(MachoWalker *walker, off_t offset, size_t size) {
+ if (!update_function_ || !size)
+ return;
+
+ // Read up to 4k bytes at a time
+ unsigned char buffer[4096];
+ size_t buffer_size;
+ off_t file_offset = offset;
+ while (size > 0) {
+ if (size > sizeof(buffer)) {
+ buffer_size = sizeof(buffer);
+ size -= buffer_size;
+ } else {
+ buffer_size = size;
+ size = 0;
+ }
+
+ if (!walker->ReadBytes(buffer, buffer_size, file_offset))
+ return;
+
+ (this->*update_function_)(buffer, buffer_size);
+ file_offset += buffer_size;
+ }
+}
+
+bool MachoID::UUIDCommand(int cpu_type, unsigned char bytes[16]) {
+ struct breakpad_uuid_command uuid_cmd;
+ uuid_cmd.cmd = 0;
+ if (!WalkHeader(cpu_type, UUIDWalkerCB, &uuid_cmd))
+ return false;
+
+ // If we found the command, we'll have initialized the uuid_command
+ // structure
+ if (uuid_cmd.cmd == LC_UUID) {
+ memcpy(bytes, uuid_cmd.uuid, sizeof(uuid_cmd.uuid));
+ return true;
+ }
+
+ return false;
+}
+
+bool MachoID::IDCommand(int cpu_type, unsigned char identifier[16]) {
+ struct dylib_command dylib_cmd;
+ dylib_cmd.cmd = 0;
+ if (!WalkHeader(cpu_type, IDWalkerCB, &dylib_cmd))
+ return false;
+
+ // If we found the command, we'll have initialized the dylib_command
+ // structure
+ if (dylib_cmd.cmd == LC_ID_DYLIB) {
+ // Take the hashed filename, version, and compatability version bytes
+ // to form the first 12 bytes, pad the rest with zeros
+
+ // create a crude hash of the filename to generate the first 4 bytes
+ identifier[0] = 0;
+ identifier[1] = 0;
+ identifier[2] = 0;
+ identifier[3] = 0;
+
+ for (int j = 0, i = (int)strlen(path_)-1; i>=0 && path_[i]!='/'; ++j, --i) {
+ identifier[j%4] += path_[i];
+ }
+
+ identifier[4] = (dylib_cmd.dylib.current_version >> 24) & 0xFF;
+ identifier[5] = (dylib_cmd.dylib.current_version >> 16) & 0xFF;
+ identifier[6] = (dylib_cmd.dylib.current_version >> 8) & 0xFF;
+ identifier[7] = dylib_cmd.dylib.current_version & 0xFF;
+ identifier[8] = (dylib_cmd.dylib.compatibility_version >> 24) & 0xFF;
+ identifier[9] = (dylib_cmd.dylib.compatibility_version >> 16) & 0xFF;
+ identifier[10] = (dylib_cmd.dylib.compatibility_version >> 8) & 0xFF;
+ identifier[11] = dylib_cmd.dylib.compatibility_version & 0xFF;
+ identifier[12] = (cpu_type >> 24) & 0xFF;
+ identifier[13] = (cpu_type >> 16) & 0xFF;
+ identifier[14] = (cpu_type >> 8) & 0xFF;
+ identifier[15] = cpu_type & 0xFF;
+
+ return true;
+ }
+
+ return false;
+}
+
+uint32_t MachoID::Adler32(int cpu_type) {
+ update_function_ = &MachoID::UpdateCRC;
+ crc_ = 0;
+
+ if (!WalkHeader(cpu_type, WalkerCB, this))
+ return 0;
+
+ return crc_;
+}
+
+bool MachoID::MD5(int cpu_type, unsigned char identifier[16]) {
+ update_function_ = &MachoID::UpdateMD5;
+
+ MD5Init(&md5_context_);
+
+ if (!WalkHeader(cpu_type, WalkerCB, this))
+ return false;
+
+ MD5Final(identifier, &md5_context_);
+ return true;
+}
+
+bool MachoID::WalkHeader(int cpu_type,
+ MachoWalker::LoadCommandCallback callback,
+ void *context) {
+ if (memory_) {
+ MachoWalker walker(memory_, memory_size_, callback, context);
+ return walker.WalkHeader(cpu_type);
+ } else {
+ MachoWalker walker(path_, callback, context);
+ return walker.WalkHeader(cpu_type);
+ }
+}
+
+// static
+bool MachoID::WalkerCB(MachoWalker *walker, load_command *cmd, off_t offset,
+ bool swap, void *context) {
+ MachoID *macho_id = (MachoID *)context;
+
+ if (cmd->cmd == LC_SEGMENT) {
+ struct segment_command seg;
+
+ if (!walker->ReadBytes(&seg, sizeof(seg), offset))
+ return false;
+
+ if (swap)
+ swap_segment_command(&seg, NXHostByteOrder());
+
+ struct mach_header_64 header;
+ off_t header_offset;
+
+ if (!walker->CurrentHeader(&header, &header_offset))
+ return false;
+
+ // Process segments that have sections:
+ // (e.g., __TEXT, __DATA, __IMPORT, __OBJC)
+ offset += sizeof(struct segment_command);
+ struct section sec;
+ for (unsigned long i = 0; i < seg.nsects; ++i) {
+ if (!walker->ReadBytes(&sec, sizeof(sec), offset))
+ return false;
+
+ if (swap)
+ swap_section(&sec, 1, NXHostByteOrder());
+
+ // sections of type S_ZEROFILL are "virtual" and contain no data
+ // in the file itself
+ if ((sec.flags & SECTION_TYPE) != S_ZEROFILL && sec.offset != 0)
+ macho_id->Update(walker, header_offset + sec.offset, sec.size);
+
+ offset += sizeof(struct section);
+ }
+ } else if (cmd->cmd == LC_SEGMENT_64) {
+ struct segment_command_64 seg64;
+
+ if (!walker->ReadBytes(&seg64, sizeof(seg64), offset))
+ return false;
+
+ if (swap)
+ breakpad_swap_segment_command_64(&seg64, NXHostByteOrder());
+
+ struct mach_header_64 header;
+ off_t header_offset;
+
+ if (!walker->CurrentHeader(&header, &header_offset))
+ return false;
+
+ // Process segments that have sections:
+ // (e.g., __TEXT, __DATA, __IMPORT, __OBJC)
+ offset += sizeof(struct segment_command_64);
+ struct section_64 sec64;
+ for (unsigned long i = 0; i < seg64.nsects; ++i) {
+ if (!walker->ReadBytes(&sec64, sizeof(sec64), offset))
+ return false;
+
+ if (swap)
+ breakpad_swap_section_64(&sec64, 1, NXHostByteOrder());
+
+ // sections of type S_ZEROFILL are "virtual" and contain no data
+ // in the file itself
+ if ((sec64.flags & SECTION_TYPE) != S_ZEROFILL && sec64.offset != 0)
+ macho_id->Update(walker,
+ header_offset + sec64.offset,
+ (size_t)sec64.size);
+
+ offset += sizeof(struct section_64);
+ }
+ }
+
+ // Continue processing
+ return true;
+}
+
+// static
+bool MachoID::UUIDWalkerCB(MachoWalker *walker, load_command *cmd, off_t offset,
+ bool swap, void *context) {
+ if (cmd->cmd == LC_UUID) {
+ struct breakpad_uuid_command *uuid_cmd =
+ (struct breakpad_uuid_command *)context;
+
+ if (!walker->ReadBytes(uuid_cmd, sizeof(struct breakpad_uuid_command),
+ offset))
+ return false;
+
+ if (swap)
+ breakpad_swap_uuid_command(uuid_cmd, NXHostByteOrder());
+
+ return false;
+ }
+
+ // Continue processing
+ return true;
+}
+
+// static
+bool MachoID::IDWalkerCB(MachoWalker *walker, load_command *cmd, off_t offset,
+ bool swap, void *context) {
+ if (cmd->cmd == LC_ID_DYLIB) {
+ struct dylib_command *dylib_cmd = (struct dylib_command *)context;
+
+ if (!walker->ReadBytes(dylib_cmd, sizeof(struct dylib_command), offset))
+ return false;
+
+ if (swap)
+ swap_dylib_command(dylib_cmd, NXHostByteOrder());
+
+ return false;
+ }
+
+ // Continue processing
+ return true;
+}
+
+} // namespace MacFileUtilities
diff --git a/3rdParty/Breakpad/src/common/mac/macho_id.h b/3rdParty/Breakpad/src/common/mac/macho_id.h
new file mode 100644
index 0000000..ccb126d
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/macho_id.h
@@ -0,0 +1,120 @@
+// 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.
+
+// macho_id.h: Functions to gather identifying information from a macho file
+//
+// Author: Dan Waylonis
+
+#ifndef COMMON_MAC_MACHO_ID_H__
+#define COMMON_MAC_MACHO_ID_H__
+
+#include <limits.h>
+#include <mach-o/loader.h>
+
+#include "common/mac/macho_walker.h"
+#include "common/md5.h"
+
+namespace MacFileUtilities {
+
+class MachoID {
+ public:
+ MachoID(const char *path);
+ MachoID(const char *path, void *memory, size_t size);
+ ~MachoID();
+
+ // For the given |cpu_type|, 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]);
+
+ // For the given |cpu_type|, 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]);
+
+ // For the given |cpu_type|, 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);
+
+ // For the given |cpu_type|, 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]);
+
+ private:
+ // Signature of class member function to be called with data read from file
+ typedef void (MachoID::*UpdateFunction)(unsigned char *bytes, size_t size);
+
+ // Update the CRC value by examining |size| |bytes| and applying the algorithm
+ // to each byte.
+ void UpdateCRC(unsigned char *bytes, size_t size);
+
+ // Update the MD5 value by examining |size| |bytes| and applying the algorithm
+ // to each byte.
+ void UpdateMD5(unsigned char *bytes, size_t size);
+
+ // Bottleneck for update routines
+ void Update(MachoWalker *walker, off_t offset, size_t size);
+
+ // Factory for the MachoWalker
+ bool WalkHeader(int cpu_type, 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,
+ bool swap, void *context);
+
+ // The callback from the MachoWalker for LC_UUID
+ static bool UUIDWalkerCB(MachoWalker *walker, load_command *cmd, off_t offset,
+ bool swap, void *context);
+
+ // The callback from the MachoWalker for LC_ID_DYLIB
+ static bool IDWalkerCB(MachoWalker *walker, load_command *cmd, off_t offset,
+ bool swap, void *context);
+
+ // File path
+ char path_[PATH_MAX];
+
+ // Memory region to read from
+ void *memory_;
+
+ // Size of the memory region
+ size_t memory_size_;
+
+ // The current crc value
+ uint32_t crc_;
+
+ // The MD5 context
+ google_breakpad::MD5Context md5_context_;
+
+ // The current update to call from the Update callback
+ UpdateFunction update_function_;
+};
+
+} // namespace MacFileUtilities
+
+#endif // COMMON_MAC_MACHO_ID_H__
diff --git a/3rdParty/Breakpad/src/common/mac/macho_reader.cc b/3rdParty/Breakpad/src/common/mac/macho_reader.cc
new file mode 100644
index 0000000..f1f0a17
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/macho_reader.cc
@@ -0,0 +1,530 @@
+// 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.cc: Implementation of google_breakpad::Mach_O::FatReader and
+// google_breakpad::Mach_O::Reader. See macho_reader.h for details.
+
+#include "common/mac/macho_reader.h"
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+// Unfortunately, CPU_TYPE_ARM is not define for 10.4.
+#if !defined(CPU_TYPE_ARM)
+#define CPU_TYPE_ARM 12
+#endif
+
+namespace google_breakpad {
+namespace mach_o {
+
+// If NDEBUG is #defined, then the 'assert' macro doesn't evaluate its
+// arguments, so you can't place expressions that do necessary work in
+// the argument of an assert. Nor can you assign the result of the
+// expression to a variable and assert that the variable's value is
+// true: you'll get unused variable warnings when NDEBUG is #defined.
+//
+// ASSERT_ALWAYS_EVAL always evaluates its argument, and asserts that
+// the result is true if NDEBUG is not #defined.
+#if defined(NDEBUG)
+#define ASSERT_ALWAYS_EVAL(x) (x)
+#else
+#define ASSERT_ALWAYS_EVAL(x) assert(x)
+#endif
+
+void FatReader::Reporter::BadHeader() {
+ fprintf(stderr, "%s: file is neither a fat binary file"
+ " nor a Mach-O object file\n", filename_.c_str());
+}
+
+void FatReader::Reporter::TooShort() {
+ fprintf(stderr, "%s: file too short for the data it claims to contain\n",
+ filename_.c_str());
+}
+
+void FatReader::Reporter::MisplacedObjectFile() {
+ fprintf(stderr, "%s: file too short for the object files it claims"
+ " to contain\n", filename_.c_str());
+}
+
+bool FatReader::Read(const uint8_t *buffer, size_t size) {
+ buffer_.start = buffer;
+ buffer_.end = buffer + size;
+ ByteCursor cursor(&buffer_);
+
+ // Fat binaries always use big-endian, so read the magic number in
+ // that endianness. To recognize Mach-O magic numbers, which can use
+ // either endianness, check for both the proper and reversed forms
+ // of the magic numbers.
+ cursor.set_big_endian(true);
+ if (cursor >> magic_) {
+ if (magic_ == FAT_MAGIC) {
+ // How many object files does this fat binary contain?
+ uint32_t object_files_count;
+ if (!(cursor >> object_files_count)) { // nfat_arch
+ reporter_->TooShort();
+ return false;
+ }
+
+ // 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];
+
+ // Read this object file entry, byte-swapping as appropriate.
+ cursor >> objfile->cputype
+ >> objfile->cpusubtype
+ >> objfile->offset
+ >> objfile->size
+ >> objfile->align;
+ 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) {
+ reporter_->MisplacedObjectFile();
+ return false;
+ }
+ }
+
+ return true;
+ } else if (magic_ == MH_MAGIC || magic_ == MH_MAGIC_64 ||
+ magic_ == MH_CIGAM || magic_ == MH_CIGAM_64) {
+ // If this is a little-endian Mach-O file, fix the cursor's endianness.
+ if (magic_ == MH_CIGAM || magic_ == MH_CIGAM_64)
+ cursor.set_big_endian(false);
+ // Record the entire file as a single entry in the object file list.
+ object_files_.resize(1);
+
+ // Get the cpu type and subtype from the Mach-O header.
+ if (!(cursor >> object_files_[0].cputype
+ >> object_files_[0].cpusubtype)) {
+ reporter_->TooShort();
+ return false;
+ }
+
+ object_files_[0].offset = 0;
+ object_files_[0].size = static_cast<uint32_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;
+}
+
+void Reader::Reporter::BadHeader() {
+ fprintf(stderr, "%s: file is not a Mach-O object file\n", filename_.c_str());
+}
+
+void Reader::Reporter::CPUTypeMismatch(cpu_type_t cpu_type,
+ cpu_subtype_t cpu_subtype,
+ cpu_type_t expected_cpu_type,
+ cpu_subtype_t expected_cpu_subtype) {
+ fprintf(stderr, "%s: CPU type %d, subtype %d does not match expected"
+ " type %d, subtype %d\n",
+ filename_.c_str(), cpu_type, cpu_subtype,
+ expected_cpu_type, expected_cpu_subtype);
+}
+
+void Reader::Reporter::HeaderTruncated() {
+ fprintf(stderr, "%s: file does not contain a complete Mach-O header\n",
+ filename_.c_str());
+}
+
+void Reader::Reporter::LoadCommandRegionTruncated() {
+ fprintf(stderr, "%s: file too short to hold load command region"
+ " given in Mach-O header\n", filename_.c_str());
+}
+
+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",
+ 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,"
+ " extend beyond the size given in the load command's header\n",
+ filename_.c_str(), i, type);
+}
+
+void Reader::Reporter::SectionsMissing(const string &name) {
+ fprintf(stderr, "%s: the load command for segment '%s'"
+ " is too short to hold the section headers it claims to have\n",
+ filename_.c_str(), name.c_str());
+}
+
+void Reader::Reporter::MisplacedSegmentData(const string &name) {
+ fprintf(stderr, "%s: the segment '%s' claims its contents lie beyond"
+ " the end of the file\n", filename_.c_str(), name.c_str());
+}
+
+void Reader::Reporter::MisplacedSectionData(const string &section,
+ const string &segment) {
+ fprintf(stderr, "%s: the section '%s' in segment '%s'"
+ " claims its contents lie outside the segment's contents\n",
+ filename_.c_str(), section.c_str(), segment.c_str());
+}
+
+void Reader::Reporter::MisplacedSymbolTable() {
+ fprintf(stderr, "%s: the LC_SYMTAB load command claims that the symbol"
+ " table's contents are located beyond the end of the file\n",
+ filename_.c_str());
+}
+
+void Reader::Reporter::UnsupportedCPUType(cpu_type_t cpu_type) {
+ fprintf(stderr, "%s: CPU type %d is not supported\n",
+ filename_.c_str(), cpu_type);
+}
+
+bool Reader::Read(const uint8_t *buffer,
+ size_t size,
+ cpu_type_t expected_cpu_type,
+ cpu_subtype_t expected_cpu_subtype) {
+ assert(!buffer_.start);
+ buffer_.start = buffer;
+ buffer_.end = buffer + size;
+ ByteCursor cursor(&buffer_, true);
+ uint32_t magic;
+ if (!(cursor >> magic)) {
+ reporter_->HeaderTruncated();
+ return false;
+ }
+
+ if (expected_cpu_type != CPU_TYPE_ANY) {
+ uint32_t expected_magic;
+ // validate that magic matches the expected cpu type
+ switch (expected_cpu_type) {
+ case CPU_TYPE_ARM:
+ case CPU_TYPE_I386:
+ expected_magic = MH_CIGAM;
+ break;
+ case CPU_TYPE_POWERPC:
+ expected_magic = MH_MAGIC;
+ break;
+ case CPU_TYPE_X86_64:
+ expected_magic = MH_CIGAM_64;
+ break;
+ case CPU_TYPE_POWERPC64:
+ expected_magic = MH_MAGIC_64;
+ break;
+ default:
+ reporter_->UnsupportedCPUType(expected_cpu_type);
+ return false;
+ }
+
+ if (expected_magic != magic) {
+ reporter_->BadHeader();
+ return false;
+ }
+ }
+
+ // Since the byte cursor is in big-endian mode, a reversed magic number
+ // always indicates a little-endian file, regardless of our own endianness.
+ switch (magic) {
+ case MH_MAGIC: big_endian_ = true; bits_64_ = false; break;
+ case MH_CIGAM: big_endian_ = false; bits_64_ = false; break;
+ case MH_MAGIC_64: big_endian_ = true; bits_64_ = true; break;
+ case MH_CIGAM_64: big_endian_ = false; bits_64_ = true; break;
+ default:
+ reporter_->BadHeader();
+ return false;
+ }
+ cursor.set_big_endian(big_endian_);
+ uint32_t commands_size, reserved;
+ cursor >> cpu_type_ >> cpu_subtype_ >> file_type_ >> load_command_count_
+ >> commands_size >> flags_;
+ if (bits_64_)
+ cursor >> reserved;
+ if (!cursor) {
+ reporter_->HeaderTruncated();
+ return false;
+ }
+
+ if (expected_cpu_type != CPU_TYPE_ANY &&
+ (expected_cpu_type != cpu_type_ ||
+ expected_cpu_subtype != cpu_subtype_)) {
+ reporter_->CPUTypeMismatch(cpu_type_, cpu_subtype_,
+ expected_cpu_type, expected_cpu_subtype);
+ return false;
+ }
+
+ cursor
+ .PointTo(&load_commands_.start, commands_size)
+ .PointTo(&load_commands_.end, 0);
+ if (!cursor) {
+ reporter_->LoadCommandRegionTruncated();
+ return false;
+ }
+
+ return true;
+}
+
+bool Reader::WalkLoadCommands(Reader::LoadCommandHandler *handler) const {
+ ByteCursor list_cursor(&load_commands_, big_endian_);
+
+ for (size_t index = 0; index < load_command_count_; ++index) {
+ // command refers to this load command alone, so that cursor will
+ // refuse to read past the load command's end. But since we haven't
+ // read the size yet, let command initially refer to the entire
+ // 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)) {
+ reporter_->LoadCommandsOverrun(load_command_count_, index, 0);
+ return false;
+ }
+ if (!(cursor >> size) || size > command.Size()) {
+ reporter_->LoadCommandsOverrun(load_command_count_, index, type);
+ return false;
+ }
+
+ // Now that we've read the length, restrict command's range to this
+ // load command only.
+ command.end = command.start + size;
+
+ switch (type) {
+ case LC_SEGMENT:
+ case LC_SEGMENT_64: {
+ Segment segment;
+ segment.bits_64 = (type == LC_SEGMENT_64);
+ size_t word_size = segment.bits_64 ? 8 : 4;
+ cursor.CString(&segment.name, 16);
+ size_t file_offset, file_size;
+ cursor
+ .Read(word_size, false, &segment.vmaddr)
+ .Read(word_size, false, &segment.vmsize)
+ .Read(word_size, false, &file_offset)
+ .Read(word_size, false, &file_size);
+ cursor >> segment.maxprot
+ >> segment.initprot
+ >> segment.nsects
+ >> segment.flags;
+ if (!cursor) {
+ reporter_->LoadCommandTooShort(index, type);
+ return false;
+ }
+ if (file_offset > buffer_.Size() ||
+ file_size > buffer_.Size() - file_offset) {
+ reporter_->MisplacedSegmentData(segment.name);
+ return false;
+ }
+ // Mach-O files in .dSYM bundles have the contents of the loaded
+ // segments removed, and their file offsets and file sizes zeroed
+ // out. To help us handle this special case properly, give such
+ // segments' contents NULL starting and ending pointers.
+ if (file_offset == 0 && file_size == 0) {
+ segment.contents.start = segment.contents.end = NULL;
+ } else {
+ segment.contents.start = buffer_.start + file_offset;
+ segment.contents.end = segment.contents.start + file_size;
+ }
+ // The section list occupies the remainder of this load command's space.
+ segment.section_list.start = cursor.here();
+ segment.section_list.end = command.end;
+
+ if (!handler->SegmentCommand(segment))
+ return false;
+ break;
+ }
+
+ case LC_SYMTAB: {
+ uint32_t symoff, nsyms, stroff, strsize;
+ cursor >> symoff >> nsyms >> stroff >> strsize;
+ if (!cursor) {
+ reporter_->LoadCommandTooShort(index, type);
+ return false;
+ }
+ // How big are the entries in the symbol table?
+ // sizeof(struct nlist_64) : sizeof(struct nlist),
+ // but be paranoid about alignment vs. target architecture.
+ size_t symbol_size = bits_64_ ? 16 : 12;
+ // How big is the entire symbol array?
+ size_t symbols_size = nsyms * symbol_size;
+ if (symoff > buffer_.Size() || symbols_size > buffer_.Size() - symoff ||
+ stroff > buffer_.Size() || strsize > buffer_.Size() - stroff) {
+ reporter_->MisplacedSymbolTable();
+ return false;
+ }
+ ByteBuffer entries(buffer_.start + symoff, symbols_size);
+ ByteBuffer names(buffer_.start + stroff, strsize);
+ if (!handler->SymtabCommand(entries, names))
+ return false;
+ break;
+ }
+
+ default: {
+ if (!handler->UnknownCommand(type, command))
+ return false;
+ break;
+ }
+ }
+
+ list_cursor.set_here(command.end);
+ }
+
+ return true;
+}
+
+// A load command handler that looks for a segment of a given name.
+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)
+ : name_(name), segment_(segment), found_() { }
+
+ // Return true if the traversal found the segment, false otherwise.
+ bool found() const { return found_; }
+
+ bool SegmentCommand(const Segment &segment) {
+ if (segment.name == name_) {
+ *segment_ = segment;
+ found_ = true;
+ return false;
+ }
+ return true;
+ }
+
+ private:
+ // The name of the segment our creator is looking for.
+ const string &name_;
+
+ // Where we should store the segment if found. (WEAK)
+ Segment *segment_;
+
+ // True if we found the segment.
+ bool found_;
+};
+
+bool Reader::FindSegment(const string &name, Segment *segment) const {
+ SegmentFinder finder(name, segment);
+ WalkLoadCommands(&finder);
+ return finder.found();
+}
+
+bool Reader::WalkSegmentSections(const Segment &segment,
+ SectionHandler *handler) const {
+ size_t word_size = segment.bits_64 ? 8 : 4;
+ ByteCursor cursor(&segment.section_list, big_endian_);
+
+ for (size_t i = 0; i < segment.nsects; i++) {
+ Section section;
+ section.bits_64 = segment.bits_64;
+ uint64_t size;
+ uint32_t offset, dummy32;
+ cursor
+ .CString(&section.section_name, 16)
+ .CString(&section.segment_name, 16)
+ .Read(word_size, false, &section.address)
+ .Read(word_size, false, &size)
+ >> offset
+ >> section.align
+ >> dummy32
+ >> dummy32
+ >> section.flags
+ >> dummy32
+ >> dummy32;
+ if (section.bits_64)
+ cursor >> dummy32;
+ if (!cursor) {
+ reporter_->SectionsMissing(segment.name);
+ return false;
+ }
+ if ((section.flags & SECTION_TYPE) == S_ZEROFILL) {
+ // Zero-fill sections have a size, but no contents.
+ section.contents.start = section.contents.end = 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
+ // out. However, the sections within those segments still have
+ // non-zero sizes. There's no reason to call MisplacedSectionData in
+ // this case; the caller may just need the section's load
+ // address. But do set the contents' limits to NULL, for safety.
+ section.contents.start = section.contents.end = NULL;
+ } else {
+ if (offset < size_t(segment.contents.start - buffer_.start) ||
+ offset > size_t(segment.contents.end - buffer_.start) ||
+ size > size_t(segment.contents.end - buffer_.start - offset)) {
+ reporter_->MisplacedSectionData(section.section_name,
+ section.segment_name);
+ return false;
+ }
+ section.contents.start = buffer_.start + offset;
+ section.contents.end = section.contents.start + size;
+ }
+ if (!handler->HandleSection(section))
+ return false;
+ }
+ return true;
+}
+
+// A SectionHandler that builds a SectionMap for the sections within a
+// given segment.
+class Reader::SectionMapper: public SectionHandler {
+ public:
+ // Create a SectionHandler that populates MAP with an entry for
+ // each section it is given.
+ SectionMapper(SectionMap *map) : map_(map) { }
+ bool HandleSection(const Section &section) {
+ (*map_)[section.section_name] = section;
+ return true;
+ }
+ private:
+ // The map under construction. (WEAK)
+ SectionMap *map_;
+};
+
+bool Reader::MapSegmentSections(const Segment &segment,
+ SectionMap *section_map) const {
+ section_map->clear();
+ SectionMapper mapper(section_map);
+ return WalkSegmentSections(segment, &mapper);
+}
+
+} // namespace mach_o
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/mac/macho_reader.h b/3rdParty/Breakpad/src/common/mac/macho_reader.h
new file mode 100644
index 0000000..7537648
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/macho_reader.h
@@ -0,0 +1,459 @@
+// -*- 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>
+
+// macho_reader.h: A class for parsing Mach-O files.
+
+#ifndef BREAKPAD_COMMON_MAC_MACHO_READER_H_
+#define BREAKPAD_COMMON_MAC_MACHO_READER_H_
+
+#include <mach-o/loader.h>
+#include <mach-o/fat.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "common/byte_cursor.h"
+
+namespace google_breakpad {
+namespace mach_o {
+
+using std::map;
+using std::string;
+using std::vector;
+
+// The Mac headers don't specify particular types for these groups of
+// constants, but defining them here provides some documentation
+// value. We also give them the same width as the fields in which
+// they appear, which makes them a bit easier to use with ByteCursors.
+typedef uint32_t Magic;
+typedef uint32_t FileType;
+typedef uint32_t FileFlags;
+typedef uint32_t LoadCommandType;
+typedef uint32_t SegmentFlags;
+typedef uint32_t SectionFlags;
+
+// A parser for fat binary files, used to store universal binaries.
+// When applied to a (non-fat) Mach-O file, this behaves as if the
+// file were a fat file containing a single object file.
+class FatReader {
+ public:
+
+ // A class for reporting errors found while parsing fat binary files. The
+ // default definitions of these methods print messages to stderr.
+ class Reporter {
+ public:
+ // Create a reporter that attributes problems to |filename|.
+ explicit Reporter(const string &filename) : filename_(filename) { }
+
+ virtual ~Reporter() { }
+
+ // The data does not begin with a fat binary or Mach-O magic number.
+ // This is a fatal error.
+ virtual void BadHeader();
+
+ // The Mach-O fat binary file ends abruptly, without enough space
+ // to contain an object file it claims is present.
+ virtual void MisplacedObjectFile();
+
+ // The file ends abruptly: either it is not large enough to hold a
+ // 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_;
+ };
+
+ // 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.
+ //
+ // If the data is a plain Mach-O file, rather than a fat binary file,
+ // then the reader behaves as if it had found a fat binary file whose
+ // 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
+ // 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.
+ //
+ // If there are no object files in this fat binary, then this
+ // function can return NULL.
+ //
+ // The array is owned by this FatReader instance; it will be freed when
+ // this FatReader is destroyed.
+ //
+ // This function returns a C-style array instead of a vector to make it
+ // 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 {
+ *count = object_files_.size();
+ if (object_files_.size() > 0)
+ return &object_files_[0];
+ return NULL;
+ }
+
+ private:
+ // We use this to report problems parsing the file's contents. (WEAK)
+ Reporter *reporter_;
+
+ // The contents of the fat binary or Mach-O file we're parsing. We do not
+ // own the storage it refers to.
+ ByteBuffer buffer_;
+
+ // The magic number of this binary, in host byte order.
+ Magic magic_;
+
+ // The list of object files in this binary.
+ // object_files_.size() == fat_header.nfat_arch
+ vector<struct fat_arch> object_files_;
+};
+
+// A segment in a Mach-O file. All these fields have been byte-swapped as
+// appropriate for use by the executing architecture.
+struct Segment {
+ // The ByteBuffers below point into the bytes passed to the Reader that
+ // created this Segment.
+
+ ByteBuffer section_list; // This segment's section list.
+ ByteBuffer contents; // This segment's contents.
+
+ // This segment's name.
+ string name;
+
+ // The address at which this segment should be loaded in memory. If
+ // bits_64 is false, only the bottom 32 bits of this value are valid.
+ uint64_t vmaddr;
+
+ // The size of this segment when loaded into memory. This may be larger
+ // than contents.Size(), in which case the extra area will be
+ // initialized with zeros. If bits_64 is false, only the bottom 32 bits
+ // of this value are valid.
+ uint64_t vmsize;
+
+ // 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;
+
+ // Flags describing this segment, from SegmentFlags.
+ uint32_t flags;
+
+ // True if this is a 64-bit section; false if it is a 32-bit section.
+ bool bits_64;
+};
+
+// A section in a Mach-O file. All these fields have been byte-swapped as
+// appropriate for use by the executing architecture.
+struct Section {
+ // This section's contents. This points into the bytes passed to the
+ // Reader that created this Section.
+ ByteBuffer contents;
+
+ // This section's name.
+ string section_name; // section[_64].sectname
+ // The name of the segment this section belongs to.
+ string segment_name; // section[_64].segname
+
+ // The address at which this section's contents should be loaded in
+ // memory. If bits_64 is false, only the bottom 32 bits of this value
+ // are valid.
+ uint64_t address;
+
+ // The contents of this section should be loaded into memory at an
+ // address which is a multiple of (two raised to this power).
+ uint32_t align;
+
+ // Flags from SectionFlags describing the section's contents.
+ uint32_t flags;
+
+ // We don't support reading relocations yet.
+
+ // True if this is a 64-bit section; false if it is a 32-bit section.
+ bool bits_64;
+};
+
+// A map from section names to Sections.
+typedef map<string, Section> SectionMap;
+
+// A reader for a Mach-O file.
+//
+// This does not handle fat binaries; see FatReader above. FatReader
+// provides a friendly interface for parsing data that could be either a
+// fat binary or a Mach-O file.
+class Reader {
+ public:
+
+ // A class for reporting errors found while parsing Mach-O files. The
+ // default definitions of these member functions print messages to
+ // stderr.
+ class Reporter {
+ public:
+ // Create a reporter that attributes problems to |filename|.
+ explicit Reporter(const string &filename) : filename_(filename) { }
+ virtual ~Reporter() { }
+
+ // Reporter functions for fatal errors return void; the reader will
+ // definitely return an error to its caller after calling them
+
+ // The data does not begin with a Mach-O magic number, or the magic
+ // number does not match the expected value for the cpu architecture.
+ // This is a fatal error.
+ virtual void BadHeader();
+
+ // The data contained in a Mach-O fat binary (|cpu_type|, |cpu_subtype|)
+ // does not match the expected CPU architecture
+ // (|expected_cpu_type|, |expected_cpu_subtype|).
+ virtual void CPUTypeMismatch(cpu_type_t cpu_type,
+ cpu_subtype_t cpu_subtype,
+ cpu_type_t expected_cpu_type,
+ cpu_subtype_t expected_cpu_subtype);
+
+ // The file ends abruptly: either it is not large enough to hold a
+ // complete header, or the header implies that contents are present
+ // beyond the actual end of the file.
+ virtual void HeaderTruncated();
+
+ // The file's load command region, as given in the Mach-O header, is
+ // too large for the file.
+ virtual void LoadCommandRegionTruncated();
+
+ // The file's Mach-O header claims the file contains |claimed| load
+ // commands, but the I'th load command, of type |type|, extends beyond
+ // the end of the load command region, as given by the Mach-O header.
+ // If |type| is zero, the command's type was unreadable.
+ virtual void LoadCommandsOverrun(size_t claimed, size_t i,
+ LoadCommandType type);
+
+ // The contents of the |i|'th load command, of type |type|, extend beyond
+ // the size given in the load command's header.
+ virtual void LoadCommandTooShort(size_t i, LoadCommandType type);
+
+ // The LC_SEGMENT or LC_SEGMENT_64 load command for the segment named
+ // |name| is too short to hold the sections that its header says it does.
+ // (This more specific than LoadCommandTooShort.)
+ virtual void SectionsMissing(const string &name);
+
+ // The segment named |name| claims that its contents lie beyond the end
+ // of the file.
+ virtual void MisplacedSegmentData(const string &name);
+
+ // The section named |section| in the segment named |segment| claims that
+ // its contents do not lie entirely within the segment.
+ virtual void MisplacedSectionData(const string &section,
+ const string &segment);
+
+ // The LC_SYMTAB command claims that symbol table contents are located
+ // beyond the end of the file.
+ virtual void MisplacedSymbolTable();
+
+ // An attempt was made to read a Mach-O file of the unsupported
+ // CPU architecture |cpu_type|.
+ virtual void UnsupportedCPUType(cpu_type_t cpu_type);
+
+ private:
+ string filename_;
+ };
+
+ // A handler for sections parsed from a segment. The WalkSegmentSections
+ // member function accepts an instance of this class, and applies it to
+ // each section defined in a given segment.
+ class SectionHandler {
+ public:
+ virtual ~SectionHandler() { }
+
+ // Called to report that the segment's section list contains |section|.
+ // This should return true if the iteration should continue, or false
+ // if it should stop.
+ virtual bool HandleSection(const Section &section) = 0;
+ };
+
+ // A handler for the load commands in a Mach-O file.
+ class LoadCommandHandler {
+ public:
+ LoadCommandHandler() { }
+ virtual ~LoadCommandHandler() { }
+
+ // When called from WalkLoadCommands, the following handler functions
+ // should return true if they wish to continue iterating over the load
+ // command list, or false if they wish to stop iterating.
+ //
+ // When called from LoadCommandIterator::Handle or Reader::Handle,
+ // these functions' return values are simply passed through to Handle's
+ // caller.
+ //
+ // The definitions provided by this base class simply return true; the
+ // default is to silently ignore sections whose member functions the
+ // subclass doesn't override.
+
+ // COMMAND is load command we don't recognize. We provide only the
+ // command type and a ByteBuffer enclosing the command's data (If we
+ // cannot parse the command type or its size, we call
+ // reporter_->IncompleteLoadCommand instead.)
+ virtual bool UnknownCommand(LoadCommandType type,
+ const ByteBuffer &contents) {
+ return true;
+ }
+
+ // The load command is LC_SEGMENT or LC_SEGMENT_64, defining a segment
+ // with the properties given in |segment|.
+ virtual bool SegmentCommand(const Segment &segment) {
+ return true;
+ }
+
+ // The load command is LC_SYMTAB. |entries| holds the array of nlist
+ // entries, and |names| holds the strings the entries refer to.
+ virtual bool SymtabCommand(const ByteBuffer &entries,
+ const ByteBuffer &names) {
+ return true;
+ }
+
+ // Add handler functions for more load commands here as needed.
+ };
+
+ // Create a Mach-O file reader that reports problems to |reporter|.
+ explicit Reader(Reporter *reporter)
+ : reporter_(reporter) { }
+
+ // Read the given data as a Mach-O file. The reader retains pointers
+ // into the data passed, so the data should live as long as the reader
+ // does. On success, return true; on failure, return false.
+ //
+ // At most one of these functions should be invoked once on each Reader
+ // instance.
+ bool Read(const uint8_t *buffer,
+ size_t size,
+ cpu_type_t expected_cpu_type,
+ cpu_subtype_t expected_cpu_subtype);
+ bool Read(const ByteBuffer &buffer,
+ cpu_type_t expected_cpu_type,
+ cpu_subtype_t expected_cpu_subtype) {
+ return Read(buffer.start,
+ buffer.Size(),
+ expected_cpu_type,
+ expected_cpu_subtype);
+ }
+
+ // Return this file's characteristics, as found in the Mach-O header.
+ cpu_type_t cpu_type() const { return cpu_type_; }
+ cpu_subtype_t cpu_subtype() const { return cpu_subtype_; }
+ FileType file_type() const { return file_type_; }
+ FileFlags flags() const { return flags_; }
+
+ // Return true if this is a 64-bit Mach-O file, false if it is a 32-bit
+ // Mach-O file.
+ bool bits_64() const { return bits_64_; }
+
+ // Return true if this is a big-endian Mach-O file, false if it is
+ // little-endian.
+ bool big_endian() const { return big_endian_; }
+
+ // Apply |handler| to each load command in this Mach-O file, stopping when
+ // a handler function returns false. If we encounter a malformed load
+ // command, report it via reporter_ and return false. Return true if all
+ // load commands were parseable and all handlers returned true.
+ bool WalkLoadCommands(LoadCommandHandler *handler) const;
+
+ // Set |segment| to describe the segment named |name|, if present. If
+ // found, |segment|'s byte buffers refer to a subregion of the bytes
+ // passed to Read. If we find the section, return true; otherwise,
+ // return false.
+ bool FindSegment(const string &name, Segment *segment) const;
+
+ // Apply |handler| to each section defined in |segment|. If |handler| returns
+ // false, stop iterating and return false. If all calls to |handler| return
+ // true and we reach the end of the section list, return true.
+ bool WalkSegmentSections(const Segment &segment, SectionHandler *handler)
+ const;
+
+ // Clear |section_map| and then populate it with a map of the sections
+ // in |segment|, from section names to Section structures.
+ // Each Section's contents refer to bytes in |segment|'s contents.
+ // On success, return true; if a problem occurs, report it and return false.
+ bool MapSegmentSections(const Segment &segment, SectionMap *section_map)
+ const;
+
+ private:
+ // Used internally.
+ class SegmentFinder;
+ class SectionMapper;
+
+ // We use this to report problems parsing the file's contents. (WEAK)
+ Reporter *reporter_;
+
+ // The contents of the Mach-O file we're parsing. We do not own the
+ // storage it refers to.
+ ByteBuffer buffer_;
+
+ // True if this file is big-endian.
+ bool big_endian_;
+
+ // True if this file is a 64-bit Mach-O file.
+ bool bits_64_;
+
+ // This file's cpu type and subtype.
+ cpu_type_t cpu_type_; // mach_header[_64].cputype
+ cpu_subtype_t cpu_subtype_; // mach_header[_64].cpusubtype
+
+ // This file's type.
+ FileType file_type_; // mach_header[_64].filetype
+
+ // The region of buffer_ occupied by load commands.
+ ByteBuffer load_commands_;
+
+ // The number of load commands in load_commands_.
+ uint32_t load_command_count_; // mach_header[_64].ncmds
+
+ // This file's header flags.
+ FileFlags flags_;
+};
+
+} // namespace mach_o
+} // namespace google_breakpad
+
+#endif // BREAKPAD_COMMON_MAC_MACHO_READER_H_
diff --git a/3rdParty/Breakpad/src/common/mac/macho_utilities.cc b/3rdParty/Breakpad/src/common/mac/macho_utilities.cc
new file mode 100644
index 0000000..89f9e77
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/macho_utilities.cc
@@ -0,0 +1,90 @@
+// 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.
+
+// macho_utilties.cc: Utilities for dealing with mach-o files
+//
+// Author: Dave Camp
+
+#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)
+{
+ 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)
+{
+ sg->cmd = ByteSwap(sg->cmd);
+ sg->cmdsize = ByteSwap(sg->cmdsize);
+
+ sg->vmaddr = ByteSwap(sg->vmaddr);
+ sg->vmsize = ByteSwap(sg->vmsize);
+ sg->fileoff = ByteSwap(sg->fileoff);
+ sg->filesize = ByteSwap(sg->filesize);
+
+ sg->maxprot = ByteSwap(sg->maxprot);
+ sg->initprot = ByteSwap(sg->initprot);
+ sg->nsects = ByteSwap(sg->nsects);
+ sg->flags = ByteSwap(sg->flags);
+}
+
+void breakpad_swap_mach_header_64(struct mach_header_64 *mh,
+ enum NXByteOrder target_byte_order)
+{
+ 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);
+ mh->reserved = ByteSwap(mh->reserved);
+}
+
+void breakpad_swap_section_64(struct section_64 *s,
+ uint32_t nsects,
+ enum NXByteOrder target_byte_order)
+{
+ 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);
+ }
+}
diff --git a/3rdParty/Breakpad/src/common/mac/macho_utilities.h b/3rdParty/Breakpad/src/common/mac/macho_utilities.h
new file mode 100644
index 0000000..a07945f
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/macho_utilities.h
@@ -0,0 +1,92 @@
+// 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.
+
+// macho_utilities.h: Utilities for dealing with mach-o files
+//
+// Author: Dave Camp
+
+#ifndef COMMON_MAC_MACHO_UTILITIES_H__
+#define COMMON_MAC_MACHO_UTILITIES_H__
+
+#include <mach-o/loader.h>
+#include <mach/thread_status.h>
+
+/* Some #defines and structs that aren't defined in older SDKs */
+#ifndef CPU_ARCH_ABI64
+# define CPU_ARCH_ABI64 0x01000000
+#endif
+
+#ifndef CPU_TYPE_X86
+# define CPU_TYPE_X86 CPU_TYPE_I386
+#endif
+
+#ifndef CPU_TYPE_POWERPC64
+# define CPU_TYPE_POWERPC64 (CPU_TYPE_POWERPC | CPU_ARCH_ABI64)
+#endif
+
+#ifndef LC_UUID
+# 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 {
+ uint32_t cmd; /* LC_UUID */
+ uint32_t cmdsize; /* sizeof(struct 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);
+
+// 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];
+
+// 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_mach_header_64(struct mach_header_64 *mh,
+ enum NXByteOrder target_byte_order);
+
+void breakpad_swap_section_64(struct section_64 *s,
+ uint32_t nsects,
+ enum NXByteOrder target_byte_order);
+
+#endif
diff --git a/3rdParty/Breakpad/src/common/mac/macho_walker.cc b/3rdParty/Breakpad/src/common/mac/macho_walker.cc
new file mode 100644
index 0000000..92da7b1
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/macho_walker.cc
@@ -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.
+
+// macho_walker.cc: Iterate over the load commands in a mach-o file
+//
+// See macho_walker.h for documentation
+//
+// 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 "common/mac/byteswap.h"
+#include "common/mac/macho_walker.h"
+#include "common/mac/macho_utilities.h"
+
+namespace MacFileUtilities {
+
+MachoWalker::MachoWalker(const char *path, LoadCommandCallback callback,
+ void *context)
+ : file_(0),
+ memory_(NULL),
+ memory_size_(0),
+ callback_(callback),
+ callback_context_(context),
+ current_header_(NULL),
+ current_header_size_(0),
+ current_header_offset_(0) {
+ file_ = open(path, O_RDONLY);
+}
+
+MachoWalker::MachoWalker(void *memory, size_t size,
+ LoadCommandCallback callback, void *context)
+ : file_(0),
+ memory_(memory),
+ memory_size_(size),
+ callback_(callback),
+ callback_context_(context),
+ current_header_(NULL),
+ current_header_size_(0),
+ current_header_offset_(0) {
+}
+
+MachoWalker::~MachoWalker() {
+ if (file_ != -1)
+ close(file_);
+}
+
+int MachoWalker::ValidateCPUType(int cpu_type) {
+ // If the user didn't specify, use the local architecture.
+ if (cpu_type == 0) {
+ const NXArchInfo *arch = NXGetLocalArchInfo();
+ assert(arch);
+ cpu_type = arch->cputype;
+ }
+
+ 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 (cpu_type & CPU_ARCH_ABI64)
+ return WalkHeader64AtOffset(offset);
+
+ return WalkHeaderAtOffset(offset);
+ }
+
+ return false;
+}
+
+bool MachoWalker::ReadBytes(void *buffer, size_t size, off_t offset) {
+ if (memory_) {
+ if (offset < 0)
+ return false;
+ bool result = true;
+ if (offset + size > memory_size_) {
+ if (static_cast<size_t>(offset) >= memory_size_)
+ return false;
+ size = memory_size_ - offset;
+ result = false;
+ }
+ memcpy(buffer, static_cast<char *>(memory_) + offset, size);
+ return result;
+ } else {
+ return pread(file_, buffer, size, offset) == (ssize_t)size;
+ }
+}
+
+bool MachoWalker::CurrentHeader(struct mach_header_64 *header, off_t *offset) {
+ if (current_header_) {
+ memcpy(header, current_header_, sizeof(mach_header_64));
+ *offset = current_header_offset_;
+ return true;
+ }
+
+ return false;
+}
+
+bool MachoWalker::FindHeader(int cpu_type, off_t &offset) {
+ int valid_cpu_type = ValidateCPUType(cpu_type);
+ // Read the magic bytes that's common amongst all mach-o files
+ uint32_t magic;
+ if (!ReadBytes(&magic, sizeof(magic), 0))
+ return false;
+
+ offset = sizeof(magic);
+
+ // Figure out what type of file we've got
+ bool is_fat = false;
+ if (magic == FAT_MAGIC || magic == FAT_CIGAM) {
+ is_fat = true;
+ }
+ else if (magic != MH_MAGIC && magic != MH_CIGAM && magic != MH_MAGIC_64 &&
+ magic != MH_CIGAM_64) {
+ return false;
+ }
+
+ 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))
+ return false;
+
+ if (magic == MH_CIGAM || magic == MH_CIGAM_64)
+ header_cpu_type = ByteSwap(header_cpu_type);
+
+ if (valid_cpu_type != header_cpu_type)
+ return false;
+
+ offset = 0;
+ return true;
+ } else {
+ // Read the fat header and find an appropriate architecture
+ offset = 0;
+ struct fat_header fat;
+ if (!ReadBytes(&fat, sizeof(fat), offset))
+ return false;
+
+ if (NXHostByteOrder() != NX_BigEndian)
+ swap_fat_header(&fat, NXHostByteOrder());
+
+ offset += sizeof(fat);
+
+ // Search each architecture for the desired one
+ struct fat_arch arch;
+ for (uint32_t i = 0; i < fat.nfat_arch; ++i) {
+ if (!ReadBytes(&arch, sizeof(arch), offset))
+ return false;
+
+ if (NXHostByteOrder() != NX_BigEndian)
+ swap_fat_arch(&arch, 1, NXHostByteOrder());
+
+ if (arch.cputype == valid_cpu_type) {
+ offset = arch.offset;
+ return true;
+ }
+
+ offset += sizeof(arch);
+ }
+ }
+
+ return false;
+}
+
+bool MachoWalker::WalkHeaderAtOffset(off_t offset) {
+ struct mach_header header;
+ if (!ReadBytes(&header, sizeof(header), offset))
+ return false;
+
+ bool swap = (header.magic == MH_CIGAM);
+ if (swap)
+ swap_mach_header(&header, NXHostByteOrder());
+
+ // 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.
+ struct mach_header_64 header64;
+ memcpy((void *)&header64, (const void *)&header, sizeof(header));
+ header64.reserved = 0;
+
+ current_header_ = &header64;
+ current_header_size_ = sizeof(header); // 32-bit, not 64-bit
+ current_header_offset_ = offset;
+ offset += current_header_size_;
+ bool result = WalkHeaderCore(offset, header.ncmds, swap);
+ current_header_ = NULL;
+ current_header_size_ = 0;
+ current_header_offset_ = 0;
+ return result;
+}
+
+bool MachoWalker::WalkHeader64AtOffset(off_t offset) {
+ struct mach_header_64 header;
+ if (!ReadBytes(&header, sizeof(header), offset))
+ return false;
+
+ bool swap = (header.magic == MH_CIGAM_64);
+ if (swap)
+ breakpad_swap_mach_header_64(&header, NXHostByteOrder());
+
+ current_header_ = &header;
+ current_header_size_ = sizeof(header);
+ current_header_offset_ = offset;
+ offset += current_header_size_;
+ bool result = WalkHeaderCore(offset, header.ncmds, swap);
+ current_header_ = NULL;
+ current_header_size_ = 0;
+ current_header_offset_ = 0;
+ return result;
+}
+
+bool MachoWalker::WalkHeaderCore(off_t offset, uint32_t number_of_commands,
+ bool swap) {
+ for (uint32_t i = 0; i < number_of_commands; ++i) {
+ struct load_command cmd;
+ if (!ReadBytes(&cmd, sizeof(cmd), offset))
+ return false;
+
+ if (swap)
+ swap_load_command(&cmd, NXHostByteOrder());
+
+ // Call the user callback
+ if (callback_ && !callback_(this, &cmd, offset, swap, callback_context_))
+ break;
+
+ offset += cmd.cmdsize;
+ }
+
+ return true;
+}
+
+} // namespace MacFileUtilities
diff --git a/3rdParty/Breakpad/src/common/mac/macho_walker.h b/3rdParty/Breakpad/src/common/mac/macho_walker.h
new file mode 100644
index 0000000..cee3eb8
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/macho_walker.h
@@ -0,0 +1,117 @@
+// 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.
+
+// macho_walker.h: Iterate over the load commands in a mach-o file
+//
+// Author: Dan Waylonis
+
+#ifndef COMMON_MAC_MACHO_WALKER_H__
+#define COMMON_MAC_MACHO_WALKER_H__
+
+#include <mach-o/loader.h>
+#include <sys/types.h>
+
+namespace MacFileUtilities {
+
+class MachoWalker {
+ public:
+ // A callback function executed when a new load command is read. If no
+ // further processing of load commands is desired, return false. Otherwise,
+ // return true.
+ // |cmd| is the current command, and |offset| is the location relative to the
+ // beginning of the file (not header) where the command was read. If |swap|
+ // is set, then any command data (other than the returned load_command) should
+ // be swapped when read
+ typedef bool (*LoadCommandCallback)(MachoWalker *walker, load_command *cmd,
+ off_t offset, bool swap, void *context);
+
+ MachoWalker(const char *path, LoadCommandCallback callback, void *context);
+ MachoWalker(void *memory, size_t size, LoadCommandCallback callback,
+ 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);
+
+ // Read |size| bytes from the opened file at |offset| into |buffer|
+ bool ReadBytes(void *buffer, size_t size, off_t offset);
+
+ // Return the current header and header offset
+ bool CurrentHeader(struct mach_header_64 *header, off_t *offset);
+
+ private:
+ // Validate the |cpu_type|
+ int ValidateCPUType(int cpu_type);
+
+ // Process an individual header starting at |offset| from the start of the
+ // file. Return true if successful, false otherwise.
+ bool WalkHeaderAtOffset(off_t offset);
+ bool WalkHeader64AtOffset(off_t offset);
+
+ // Bottleneck for walking the load commands
+ bool WalkHeaderCore(off_t offset, uint32_t number_of_commands, bool swap);
+
+ // File descriptor to the opened file
+ int file_;
+
+ // Memory location to read from.
+ void *memory_;
+
+ // Size of the memory segment we can read from.
+ size_t memory_size_;
+
+ // User specified callback & context
+ LoadCommandCallback callback_;
+ void *callback_context_;
+
+ // Current header, size, and offset. The mach_header_64 is used for both
+ // 32-bit and 64-bit headers because they only differ in their last field
+ // (reserved). By adding the |current_header_size_| and the
+ // |current_header_offset_|, you can determine the offset in the file just
+ // after the header.
+ struct mach_header_64 *current_header_;
+ unsigned long current_header_size_;
+ off_t current_header_offset_;
+
+ private:
+ MachoWalker(const MachoWalker &);
+ MachoWalker &operator=(const MachoWalker &);
+};
+
+} // namespace MacFileUtilities
+
+#endif // COMMON_MAC_MACHO_WALKER_H__
diff --git a/3rdParty/Breakpad/src/common/mac/scoped_task_suspend-inl.h b/3rdParty/Breakpad/src/common/mac/scoped_task_suspend-inl.h
new file mode 100644
index 0000000..d6d1bef
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/scoped_task_suspend-inl.h
@@ -0,0 +1,56 @@
+// 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.
+
+// Inline implementation of ScopedTaskSuspend, which suspends a Mach
+// task for the duration of its scope.
+
+#ifndef GOOGLE_BREAKPAD_COMMON_MAC_SCOPED_TASK_SUSPEND_H_
+#define GOOGLE_BREAKPAD_COMMON_MAC_SCOPED_TASK_SUSPEND_H_
+
+#include <mach/mach.h>
+
+namespace google_breakpad {
+
+class ScopedTaskSuspend {
+ public:
+ explicit ScopedTaskSuspend(mach_port_t target) : target_(target) {
+ task_suspend(target_);
+ }
+
+ ~ScopedTaskSuspend() {
+ task_resume(target_);
+ }
+
+ private:
+ mach_port_t target_;
+};
+
+} // namespace google_breakpad
+
+#endif // GOOGLE_BREAKPAD_COMMON_MAC_SCOPED_TASK_SUSPEND_H_
diff --git a/3rdParty/Breakpad/src/common/mac/string_utilities.cc b/3rdParty/Breakpad/src/common/mac/string_utilities.cc
new file mode 100644
index 0000000..e1f63a9
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/string_utilities.cc
@@ -0,0 +1,84 @@
+// 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 "processor/scoped_ptr.h"
+#include "common/mac/string_utilities.h"
+
+namespace MacStringUtils {
+
+using google_breakpad::scoped_array;
+
+std::string ConvertToString(CFStringRef str) {
+ CFIndex length = CFStringGetLength(str);
+ std::string result;
+
+ if (!length)
+ return result;
+
+ CFIndex maxUTF8Length =
+ CFStringGetMaximumSizeForEncoding(length, kCFStringEncodingUTF8);
+ scoped_array<UInt8> buffer(new UInt8[maxUTF8Length + 1]);
+ CFIndex actualUTF8Length;
+ CFStringGetBytes(str, CFRangeMake(0, length), kCFStringEncodingUTF8, 0,
+ false, buffer.get(), maxUTF8Length, &actualUTF8Length);
+ buffer[actualUTF8Length] = 0;
+ result.assign((const char *)buffer.get());
+
+ return result;
+}
+
+unsigned int IntegerValueAtIndex(string &str, unsigned int idx) {
+ string digits("0123456789"), temp;
+ size_t start = 0;
+ size_t end;
+ size_t found = 0;
+ unsigned int result = 0;
+
+ for (; found <= idx; ++found) {
+ end = str.find_first_not_of(digits, start);
+
+ if (end == string::npos)
+ end = str.size();
+
+ temp = str.substr(start, end - start);
+
+ if (found == idx) {
+ result = atoi(temp.c_str());
+ }
+
+ start = str.find_first_of(digits, end + 1);
+
+ if (start == string::npos)
+ break;
+ }
+
+ return result;
+}
+
+} // namespace MacStringUtils
diff --git a/3rdParty/Breakpad/src/common/mac/string_utilities.h b/3rdParty/Breakpad/src/common/mac/string_utilities.h
new file mode 100644
index 0000000..6d89c83
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/mac/string_utilities.h
@@ -0,0 +1,52 @@
+// 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.
+
+// string_utilities.h: Utilities for strings for Mac platform
+
+#ifndef COMMON_MAC_STRING_UTILITIES_H__
+#define COMMON_MAC_STRING_UTILITIES_H__
+
+#include <CoreFoundation/CoreFoundation.h>
+
+#include <string>
+
+namespace MacStringUtils {
+
+using std::string;
+
+// Convert a CoreFoundation string into a std::string
+string ConvertToString(CFStringRef str);
+
+// Return the idx'th decimal integer in str, separated by non-decimal-digits
+// E.g., str = 10.4.8, idx = 1 -> 4
+unsigned int IntegerValueAtIndex(string &str, unsigned int idx);
+
+} // namespace MacStringUtils
+
+#endif // COMMON_MAC_STRING_UTILITIES_H__
diff --git a/3rdParty/Breakpad/src/common/md5.cc b/3rdParty/Breakpad/src/common/md5.cc
new file mode 100644
index 0000000..bccf61c
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/md5.cc
@@ -0,0 +1,251 @@
+/*
+ * written by Colin Plumb in 1993, no copyright is claimed.
+ * This code is in the public domain; do with it what you wish.
+ *
+ * Equivalent code is available from RSA Data Security, Inc.
+ * This code has been tested against that, and is equivalent,
+ * except that you don't need to include two pages of legalese
+ * with every copy.
+ *
+ * To compute the message digest of a chunk of bytes, declare an
+ * MD5Context structure, pass it to MD5Init, call MD5Update as
+ * needed on buffers full of bytes, and then call MD5Final, which
+ * will fill a supplied 16-byte array with the digest.
+ */
+
+#include <string.h>
+
+#include "common/md5.h"
+
+namespace google_breakpad {
+
+#ifndef WORDS_BIGENDIAN
+#define byteReverse(buf, len) /* Nothing */
+#else
+/*
+ * Note: this code is harmless on little-endian machines.
+ */
+static void byteReverse(unsigned char *buf, unsigned longs)
+{
+ u32 t;
+ do {
+ t = (u32) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
+ ((unsigned) buf[1] << 8 | buf[0]);
+ *(u32 *) buf = t;
+ buf += 4;
+ } while (--longs);
+}
+#endif
+
+static void MD5Transform(u32 buf[4], u32 const in[16]);
+
+/*
+ * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
+ * initialization constants.
+ */
+void MD5Init(struct MD5Context *ctx)
+{
+ ctx->buf[0] = 0x67452301;
+ ctx->buf[1] = 0xefcdab89;
+ ctx->buf[2] = 0x98badcfe;
+ ctx->buf[3] = 0x10325476;
+
+ ctx->bits[0] = 0;
+ ctx->bits[1] = 0;
+}
+
+/*
+ * Update context to reflect the concatenation of another buffer full
+ * of bytes.
+ */
+void MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len)
+{
+ u32 t;
+
+ /* Update bitcount */
+
+ t = ctx->bits[0];
+ if ((ctx->bits[0] = t + ((u32) len << 3)) < t)
+ ctx->bits[1]++; /* Carry from low to high */
+ ctx->bits[1] += len >> 29;
+
+ t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
+
+ /* Handle any leading odd-sized chunks */
+
+ if (t) {
+ unsigned char *p = (unsigned char *) ctx->in + t;
+
+ t = 64 - t;
+ if (len < t) {
+ memcpy(p, buf, len);
+ return;
+ }
+ memcpy(p, buf, t);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (u32 *) ctx->in);
+ buf += t;
+ len -= t;
+ }
+ /* Process data in 64-byte chunks */
+
+ while (len >= 64) {
+ memcpy(ctx->in, buf, 64);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (u32 *) ctx->in);
+ buf += 64;
+ len -= 64;
+ }
+
+ /* Handle any remaining bytes of data. */
+
+ memcpy(ctx->in, buf, len);
+}
+
+/*
+ * Final wrapup - pad to 64-byte boundary with the bit pattern
+ * 1 0* (64-bit count of bits processed, MSB-first)
+ */
+void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
+{
+ unsigned count;
+ unsigned char *p;
+
+ /* Compute number of bytes mod 64 */
+ count = (ctx->bits[0] >> 3) & 0x3F;
+
+ /* Set the first char of padding to 0x80. This is safe since there is
+ always at least one byte free */
+ p = ctx->in + count;
+ *p++ = 0x80;
+
+ /* Bytes of padding needed to make 64 bytes */
+ count = 64 - 1 - count;
+
+ /* Pad out to 56 mod 64 */
+ if (count < 8) {
+ /* Two lots of padding: Pad the first block to 64 bytes */
+ memset(p, 0, count);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (u32 *) ctx->in);
+
+ /* Now fill the next block with 56 bytes */
+ memset(ctx->in, 0, 56);
+ } else {
+ /* Pad block to 56 bytes */
+ memset(p, 0, count - 8);
+ }
+ byteReverse(ctx->in, 14);
+
+ /* Append length in bits and transform */
+ ((u32 *) ctx->in)[14] = ctx->bits[0];
+ ((u32 *) ctx->in)[15] = ctx->bits[1];
+
+ MD5Transform(ctx->buf, (u32 *) ctx->in);
+ byteReverse((unsigned char *) ctx->buf, 4);
+ memcpy(digest, ctx->buf, 16);
+ memset(ctx, 0, sizeof(*ctx)); /* In case it's sensitive */
+}
+
+/* The four core functions - F1 is optimized somewhat */
+
+/* #define F1(x, y, z) (x & y | ~x & z) */
+#define F1(x, y, z) (z ^ (x & (y ^ z)))
+#define F2(x, y, z) F1(z, x, y)
+#define F3(x, y, z) (x ^ y ^ z)
+#define F4(x, y, z) (y ^ (x | ~z))
+
+/* This is the central step in the MD5 algorithm. */
+#define MD5STEP(f, w, x, y, z, data, s) \
+ ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
+
+/*
+ * The core of the MD5 algorithm, this alters an existing MD5 hash to
+ * reflect the addition of 16 longwords of new data. MD5Update blocks
+ * the data and converts bytes into longwords for this routine.
+ */
+static void MD5Transform(u32 buf[4], u32 const in[16])
+{
+ register u32 a, b, c, d;
+
+ a = buf[0];
+ b = buf[1];
+ c = buf[2];
+ d = buf[3];
+
+ MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
+ MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
+ MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
+ MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
+ MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
+ MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
+ MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
+ MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
+ MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
+ MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
+ MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
+ MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
+ MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
+ MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
+ MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
+ MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
+
+ MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
+ MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
+ MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
+ MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
+ MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
+ MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
+ MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
+ MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
+ MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
+ MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
+ MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
+ MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
+ MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
+ MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
+ MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
+ MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
+
+ MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
+ MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
+ MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
+ MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
+ MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
+ MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
+ MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
+ MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
+ MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
+ MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
+ MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
+ MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
+ MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
+ MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
+ MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
+ MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
+
+ MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
+ MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
+ MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
+ MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
+ MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
+ MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
+ MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
+ MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
+ MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
+ MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
+ MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
+ MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
+ MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
+ MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
+ MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
+ MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
+
+ buf[0] += a;
+ buf[1] += b;
+ buf[2] += c;
+ buf[3] += d;
+}
+
+} // namespace google_breakpad
+
diff --git a/3rdParty/Breakpad/src/common/md5.h b/3rdParty/Breakpad/src/common/md5.h
new file mode 100644
index 0000000..e96521e
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/md5.h
@@ -0,0 +1,27 @@
+// Copyright 2007 Google Inc. All Rights Reserved.
+// Author: liuli@google.com (Liu Li)
+#ifndef COMMON_MD5_H__
+#define COMMON_MD5_H__
+
+#include <stdint.h>
+
+namespace google_breakpad {
+
+typedef uint32_t u32;
+typedef uint8_t u8;
+
+struct MD5Context {
+ u32 buf[4];
+ u32 bits[2];
+ u8 in[64];
+};
+
+void MD5Init(struct MD5Context *ctx);
+
+void MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len);
+
+void MD5Final(unsigned char digest[16], struct MD5Context *ctx);
+
+} // namespace google_breakpad
+
+#endif // COMMON_MD5_H__
diff --git a/3rdParty/Breakpad/src/common/memory.h b/3rdParty/Breakpad/src/common/memory.h
new file mode 100644
index 0000000..e90bd52
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/memory.h
@@ -0,0 +1,218 @@
+// 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.
+
+#ifndef GOOGLE_BREAKPAD_COMMON_MEMORY_H_
+#define GOOGLE_BREAKPAD_COMMON_MEMORY_H_
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#ifdef __APPLE__
+#define sys_mmap mmap
+#define sys_mmap2 mmap
+#define sys_munmap munmap
+#define MAP_ANONYMOUS MAP_ANON
+#else
+#include "third_party/lss/linux_syscall_support.h"
+#endif
+
+namespace google_breakpad {
+
+// This is very simple allocator which fetches pages from the kernel directly.
+// Thus, it can be used even when the heap may be corrupted.
+//
+// There is no free operation. The pages are only freed when the object is
+// destroyed.
+class PageAllocator {
+ public:
+ PageAllocator()
+ : page_size_(getpagesize()),
+ last_(NULL),
+ current_page_(NULL),
+ page_offset_(0) {
+ }
+
+ ~PageAllocator() {
+ FreeAll();
+ }
+
+ void *Alloc(unsigned bytes) {
+ if (!bytes)
+ return NULL;
+
+ if (current_page_ && page_size_ - page_offset_ >= bytes) {
+ uint8_t *const ret = current_page_ + page_offset_;
+ page_offset_ += bytes;
+ if (page_offset_ == page_size_) {
+ page_offset_ = 0;
+ current_page_ = NULL;
+ }
+
+ return ret;
+ }
+
+ const unsigned 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_;
+ current_page_ = page_offset_ ? ret + page_size_ * (pages - 1) : NULL;
+
+ return ret + sizeof(PageHeader);
+ }
+
+ private:
+ uint8_t *GetNPages(unsigned num_pages) {
+#ifdef __x86_64
+ 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;
+
+ struct PageHeader *header = reinterpret_cast<PageHeader*>(a);
+ header->next = last_;
+ header->num_pages = num_pages;
+ last_ = header;
+
+ return reinterpret_cast<uint8_t*>(a);
+ }
+
+ void FreeAll() {
+ PageHeader *next;
+
+ for (PageHeader *cur = last_; cur; cur = next) {
+ next = cur->next;
+ sys_munmap(cur, cur->num_pages * page_size_);
+ }
+ }
+
+ struct PageHeader {
+ PageHeader *next; // pointer to the start of the next set of pages.
+ unsigned num_pages; // the number of pages in this set.
+ };
+
+ const unsigned page_size_;
+ PageHeader *last_;
+ uint8_t *current_page_;
+ unsigned page_offset_;
+};
+
+// 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;
+ }
+ }
+ }
+
+ T& operator[](size_t index) {
+ return a_[index];
+ }
+
+ const T& operator[](size_t index) const {
+ return a_[index];
+ }
+
+ 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;
+ }
+
+ 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_|.
+};
+
+} // namespace google_breakpad
+
+inline void* operator new(size_t nbytes,
+ google_breakpad::PageAllocator& allocator) {
+ return allocator.Alloc(nbytes);
+}
+
+#endif // GOOGLE_BREAKPAD_COMMON_MEMORY_H_
diff --git a/3rdParty/Breakpad/src/common/module.cc b/3rdParty/Breakpad/src/common/module.cc
new file mode 100644
index 0000000..4e257d1
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/module.cc
@@ -0,0 +1,294 @@
+// 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.
+
+// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
+
+// module.cc: Implement google_breakpad::Module. See module.h.
+
+#include "common/module.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <iostream>
+#include <utility>
+
+namespace google_breakpad {
+
+using std::dec;
+using std::endl;
+using std::hex;
+
+
+Module::Module(const string &name, const string &os,
+ const string &architecture, const string &id) :
+ name_(name),
+ os_(os),
+ architecture_(architecture),
+ id_(id),
+ load_address_(0) { }
+
+Module::~Module() {
+ for (FileByNameMap::iterator it = files_.begin(); it != files_.end(); ++it)
+ delete it->second;
+ for (FunctionSet::iterator it = functions_.begin();
+ it != functions_.end(); ++it) {
+ delete *it;
+ }
+ for (vector<StackFrameEntry *>::iterator it = stack_frame_entries_.begin();
+ it != stack_frame_entries_.end(); ++it) {
+ delete *it;
+ }
+ for (ExternSet::iterator it = externs_.begin(); it != externs_.end(); ++it)
+ delete *it;
+}
+
+void Module::SetLoadAddress(Address address) {
+ load_address_ = address;
+}
+
+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());
+ std::pair<FunctionSet::iterator,bool> ret = functions_.insert(function);
+ if (!ret.second) {
+ // Free the duplicate that was not inserted because this Module
+ // now owns it.
+ delete function;
+ }
+}
+
+void Module::AddFunctions(vector<Function *>::iterator begin,
+ vector<Function *>::iterator end) {
+ for (vector<Function *>::iterator it = begin; it != end; ++it)
+ AddFunction(*it);
+}
+
+void Module::AddStackFrameEntry(StackFrameEntry *stack_frame_entry) {
+ stack_frame_entries_.push_back(stack_frame_entry);
+}
+
+void Module::AddExtern(Extern *ext) {
+ std::pair<ExternSet::iterator,bool> ret = externs_.insert(ext);
+ if (!ret.second) {
+ // Free the duplicate that was not inserted because this Module
+ // now owns it.
+ delete ext;
+ }
+}
+
+void Module::GetFunctions(vector<Function *> *vec,
+ vector<Function *>::iterator i) {
+ vec->insert(i, functions_.begin(), functions_.end());
+}
+
+void Module::GetExterns(vector<Extern *> *vec,
+ vector<Extern *>::iterator i) {
+ vec->insert(i, externs_.begin(), externs_.end());
+}
+
+Module::File *Module::FindFile(const string &name) {
+ // A tricky bit here. The key of each map entry needs to be a
+ // pointer to the entry's File's name string. This means that we
+ // can't do the initial lookup with any operation that would create
+ // an empty entry for us if the name isn't found (like, say,
+ // operator[] or insert do), because such a created entry's key will
+ // be a pointer the string passed as our argument. Since the key of
+ // a map's value type is const, we can't fix it up once we've
+ // created our file. lower_bound does the lookup without doing an
+ // insertion, and returns a good hint iterator to pass to insert.
+ // Our "destiny" is where we belong, whether we're there or not now.
+ 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->source_id = -1;
+ destiny = files_.insert(destiny,
+ FileByNameMap::value_type(&file->name, file));
+ }
+ return destiny->second;
+}
+
+Module::File *Module::FindFile(const char *name) {
+ string name_string = name;
+ return FindFile(name_string);
+}
+
+Module::File *Module::FindExistingFile(const string &name) {
+ FileByNameMap::iterator it = files_.find(&name);
+ return (it == files_.end()) ? NULL : it->second;
+}
+
+void Module::GetFiles(vector<File *> *vec) {
+ vec->clear();
+ for (FileByNameMap::iterator it = files_.begin(); it != files_.end(); ++it)
+ vec->push_back(it->second);
+}
+
+void Module::GetStackFrameEntries(vector<StackFrameEntry *> *vec) {
+ *vec = stack_frame_entries_;
+}
+
+void Module::AssignSourceIds() {
+ // First, give every source file an id of -1.
+ for (FileByNameMap::iterator file_it = files_.begin();
+ file_it != files_.end(); ++file_it) {
+ file_it->second->source_id = -1;
+ }
+
+ // Next, mark all files actually cited by our functions' line number
+ // info, by setting each one's source id to zero.
+ for (FunctionSet::const_iterator func_it = functions_.begin();
+ func_it != functions_.end(); ++func_it) {
+ Function *func = *func_it;
+ for (vector<Line>::iterator line_it = func->lines.begin();
+ line_it != func->lines.end(); ++line_it)
+ line_it->file->source_id = 0;
+ }
+
+ // Finally, assign source ids to those files that have been marked.
+ // We could have just assigned source id numbers while traversing
+ // the line numbers, but doing it this way numbers the files in
+ // lexicographical order by name, which is neat.
+ int next_source_id = 0;
+ for (FileByNameMap::iterator file_it = files_.begin();
+ file_it != files_.end(); ++file_it) {
+ if (!file_it->second->source_id)
+ file_it->second->source_id = next_source_id++;
+ }
+}
+
+bool Module::ReportError() {
+ fprintf(stderr, "error writing symbol file: %s\n",
+ strerror(errno));
+ return false;
+}
+
+bool Module::WriteRuleMap(const RuleMap &rule_map, std::ostream &stream) {
+ for (RuleMap::const_iterator it = rule_map.begin();
+ it != rule_map.end(); ++it) {
+ if (it != rule_map.begin())
+ stream << ' ';
+ stream << it->first << ": " << it->second;
+ }
+ return stream.good();
+}
+
+bool Module::Write(std::ostream &stream, bool cfi) {
+ stream << "MODULE " << os_ << " " << architecture_ << " "
+ << id_ << " " << name_ << endl;
+ if (!stream.good())
+ return ReportError();
+
+ 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;
+ 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();
+ }
+
+ if (cfi) {
+ // Write out 'STACK CFI INIT' and 'STACK CFI' records.
+ vector<StackFrameEntry *>::const_iterator frame_it;
+ for (frame_it = stack_frame_entries_.begin();
+ frame_it != stack_frame_entries_.end(); ++frame_it) {
+ StackFrameEntry *entry = *frame_it;
+ stream << "STACK CFI INIT " << hex
+ << (entry->address - load_address_) << " "
+ << entry->size << " " << dec;
+ if (!stream.good()
+ || !WriteRuleMap(entry->initial_rules, stream))
+ return ReportError();
+
+ stream << endl;
+
+ // Write out this entry's delta rules as 'STACK CFI' records.
+ for (RuleChangeMap::const_iterator delta_it = entry->rule_changes.begin();
+ delta_it != entry->rule_changes.end(); ++delta_it) {
+ stream << "STACK CFI " << hex
+ << (delta_it->first - load_address_) << " " << dec;
+ if (!stream.good()
+ || !WriteRuleMap(delta_it->second, stream))
+ return ReportError();
+
+ stream << endl;
+ }
+ }
+ }
+
+ return true;
+}
+
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/module.h b/3rdParty/Breakpad/src/common/module.h
new file mode 100644
index 0000000..cc89bba
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/module.h
@@ -0,0 +1,321 @@
+// -*- 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>
+
+// module.h: Define google_breakpad::Module. A Module holds debugging
+// information, and can write that information out as a Breakpad
+// symbol file.
+
+#ifndef COMMON_LINUX_MODULE_H__
+#define COMMON_LINUX_MODULE_H__
+
+#include <iostream>
+#include <map>
+#include <set>
+#include <string>
+#include <vector>
+
+#include "common/using_std_string.h"
+#include "google_breakpad/common/breakpad_types.h"
+
+namespace google_breakpad {
+
+using std::set;
+using std::vector;
+using std::map;
+
+// A Module represents the contents of a module, and supports methods
+// for adding information produced by parsing STABS or DWARF data
+// --- possibly both from the same file --- and then writing out the
+// unified contents as a Breakpad-format symbol file.
+class Module {
+ public:
+ // The type of addresses and sizes in a symbol table.
+ typedef u_int64_t Address;
+ struct File;
+ struct Function;
+ struct Line;
+ struct Extern;
+
+ // Addresses appearing in File, Function, and Line structures are
+ // absolute, not relative to the the module's load address. That
+ // is, if the module were loaded at its nominal load address, the
+ // addresses would be correct.
+
+ // A source file.
+ struct File {
+ // The name of the source file.
+ 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
+ // before calling Write will be lost.
+ int source_id;
+ };
+
+ // A function.
+ struct Function {
+ // 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) {
+ return x->address < y->address;
+ }
+
+ // The function's name.
+ string name;
+
+ // The start address and length of the function's code.
+ Address address, size;
+
+ // The function's parameter size.
+ Address parameter_size;
+
+ // Source lines belonging to this function, sorted by increasing
+ // address.
+ vector<Line> lines;
+ };
+
+ // A source line.
+ struct Line {
+ // For sorting by address. (Not style-guide compliant, but it's
+ // stupid not to put this in the struct.)
+ static bool CompareByAddress(const Module::Line &x, const Module::Line &y) {
+ return x.address < y.address;
+ }
+
+ Address address, size; // The address and size of the line's code.
+ File *file; // The source file.
+ int number; // The source line number.
+ };
+
+ // An exported symbol.
+ struct Extern {
+ Address address;
+ string name;
+ };
+
+ // A map from register names to postfix expressions that recover
+ // their their values. This can represent a complete set of rules to
+ // follow at some address, or a set of changes to be applied to an
+ // extant set of rules.
+ typedef map<string, string> RuleMap;
+
+ // A map from addresses to RuleMaps, representing changes that take
+ // effect at given addresses.
+ typedef map<Address, RuleMap> RuleChangeMap;
+
+ // A range of 'STACK CFI' stack walking information. An instance of
+ // this structure corresponds to a 'STACK CFI INIT' record and the
+ // subsequent 'STACK CFI' records that fall within its range.
+ struct StackFrameEntry {
+ // The starting address and number of bytes of machine code this
+ // entry covers.
+ Address address, size;
+
+ // The initial register recovery rules, in force at the starting
+ // address.
+ RuleMap initial_rules;
+
+ // A map from addresses to rule changes. To find the rules in
+ // force at a given address, start with initial_rules, and then
+ // apply the changes given in this map for all addresses up to and
+ // including the address you're interested in.
+ RuleChangeMap rule_changes;
+ };
+
+ struct FunctionCompare {
+ bool operator() (const Function *lhs,
+ const Function *rhs) const {
+ if (lhs->address == rhs->address)
+ return lhs->name < rhs->name;
+ return lhs->address < rhs->address;
+ }
+ };
+
+ struct ExternCompare {
+ bool operator() (const Extern *lhs,
+ const Extern *rhs) const {
+ return lhs->address < rhs->address;
+ }
+ };
+
+ // 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);
+ ~Module();
+
+ // Set the module's load address to LOAD_ADDRESS; addresses given
+ // for functions and lines will be written to the Breakpad symbol
+ // file as offsets from this address. Construction initializes this
+ // module's load address to zero: addresses written to the symbol
+ // file will be the same as they appear in the Function, Line, and
+ // StackFrameEntry structures.
+ //
+ // Note that this member function has no effect on addresses stored
+ // in the data added to this module; the Write member function
+ // simply subtracts off the load address from addresses before it
+ // prints them. Only the last load address given before calling
+ // Write is used.
+ void SetLoadAddress(Address load_address);
+
+ // Add FUNCTION to the module. FUNCTION's name must not be empty.
+ // This module owns all Function objects added with this function:
+ // destroying the module destroys them as well.
+ void AddFunction(Function *function);
+
+ // Add all the functions in [BEGIN,END) to the module.
+ // This module owns all Function objects added with this function:
+ // destroying the module destroys them as well.
+ void AddFunctions(vector<Function *>::iterator begin,
+ vector<Function *>::iterator end);
+
+ // Add STACK_FRAME_ENTRY to the module.
+ // This module owns all StackFrameEntry objects added with this
+ // function: destroying the module destroys them as well.
+ void AddStackFrameEntry(StackFrameEntry *stack_frame_entry);
+
+ // Add PUBLIC to the module.
+ // This module owns all Extern objects added with this function:
+ // destroying the module destroys them as well.
+ void AddExtern(Extern *ext);
+
+ // If this module has a file named NAME, return a pointer to it. If
+ // it has none, then create one and return a pointer to the new
+ // file. This module owns all File objects created using these
+ // functions; destroying the module destroys them as well.
+ File *FindFile(const string &name);
+ File *FindFile(const char *name);
+
+ // If this module has a file named NAME, return a pointer to it.
+ // Otherwise, return NULL.
+ File *FindExistingFile(const string &name);
+
+ // Insert pointers to the functions added to this module at I in
+ // VEC. The pointed-to Functions are still owned by this module.
+ // (Since this is effectively a copy of the function list, this is
+ // mostly useful for testing; other uses should probably get a more
+ // appropriate interface.)
+ void GetFunctions(vector<Function *> *vec, vector<Function *>::iterator i);
+
+ // Insert pointers to the externs added to this module at I in
+ // VEC. The pointed-to Externs are still owned by this module.
+ // (Since this is effectively a copy of the extern list, this is
+ // mostly useful for testing; other uses should probably get a more
+ // appropriate interface.)
+ void GetExterns(vector<Extern *> *vec, vector<Extern *>::iterator i);
+
+ // Clear VEC and fill it with pointers to the Files added to this
+ // module, sorted by name. The pointed-to Files are still owned by
+ // this module. (Since this is effectively a copy of the file list,
+ // this is mostly useful for testing; other uses should probably get
+ // a more appropriate interface.)
+ void GetFiles(vector<File *> *vec);
+
+ // Clear VEC and fill it with pointers to the StackFrameEntry
+ // objects that have been added to this module. (Since this is
+ // 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);
+
+ // Find those files in this module that are actually referred to by
+ // functions' line number data, and assign them source id numbers.
+ // Set the source id numbers for all other files --- unused by the
+ // source line data --- to -1. We do this before writing out the
+ // symbol file, at which point we omit any unused files.
+ void AssignSourceIds();
+
+ // Call AssignSourceIds, and write this module to STREAM in the
+ // 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,
+ // - 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.
+ // Addresses in the output are all relative to the load address
+ // established by SetLoadAddress.
+ bool Write(std::ostream &stream, bool cfi);
+
+ private:
+ // Report an error that has occurred writing the symbol file, using
+ // errno to find the appropriate cause. Return false.
+ static bool ReportError();
+
+ // Write RULE_MAP to STREAM, in the form appropriate for 'STACK CFI'
+ // records, without a final newline. Return true if all goes well;
+ // if an error occurs, return false, and leave errno set.
+ static bool WriteRuleMap(const RuleMap &rule_map, std::ostream &stream);
+
+ // Module header entries.
+ string name_, os_, architecture_, id_;
+
+ // The module's nominal load address. Addresses for functions and
+ // lines are absolute, assuming the module is loaded at this
+ // address.
+ Address load_address_;
+
+ // 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; }
+ };
+
+ // A map from filenames to File structures. The map's keys are
+ // pointers to the Files' names.
+ typedef map<const string *, File *, CompareStringPtrs> FileByNameMap;
+
+ // A set containing Function structures, sorted by address.
+ typedef set<Function *, FunctionCompare> FunctionSet;
+
+ // A set containing Extern structures, sorted by address.
+ typedef set<Extern *, ExternCompare> ExternSet;
+
+ // The module owns all the files and functions that have been added
+ // to it; destroying the module frees the Files and Functions these
+ // point to.
+ FileByNameMap files_; // This module's source files.
+ FunctionSet functions_; // This module's functions.
+
+ // The module owns all the call frame info entries that have been
+ // added to it.
+ vector<StackFrameEntry *> stack_frame_entries_;
+
+ // The module owns all the externs that have been added to it;
+ // destroying the module frees the Externs these point to.
+ ExternSet externs_;
+};
+
+} // namespace google_breakpad
+
+#endif // COMMON_LINUX_MODULE_H__
diff --git a/3rdParty/Breakpad/src/common/stabs_reader.cc b/3rdParty/Breakpad/src/common/stabs_reader.cc
new file mode 100644
index 0000000..6019fc7
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/stabs_reader.cc
@@ -0,0 +1,315 @@
+// 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>
+
+// This file implements the google_breakpad::StabsReader class.
+// See stabs_reader.h.
+
+#include "common/stabs_reader.h"
+
+#include <assert.h>
+#include <stab.h>
+#include <string.h>
+
+#include <string>
+
+#include "common/using_std_string.h"
+
+using std::vector;
+
+namespace google_breakpad {
+
+StabsReader::EntryIterator::EntryIterator(const ByteBuffer *buffer,
+ bool big_endian, size_t value_size)
+ : value_size_(value_size), cursor_(buffer, big_endian) {
+ // Actually, we could handle weird sizes just fine, but they're
+ // probably mistakes --- expressed in bits, say.
+ assert(value_size == 4 || value_size == 8);
+ entry_.index = 0;
+ Fetch();
+}
+
+void StabsReader::EntryIterator::Fetch() {
+ cursor_
+ .Read(4, false, &entry_.name_offset)
+ .Read(1, false, &entry_.type)
+ .Read(1, false, &entry_.other)
+ .Read(2, false, &entry_.descriptor)
+ .Read(value_size_, false, &entry_.value);
+ entry_.at_end = !cursor_;
+}
+
+StabsReader::StabsReader(const uint8_t *stab, size_t stab_size,
+ const uint8_t *stabstr, size_t stabstr_size,
+ bool big_endian, size_t value_size, bool unitized,
+ StabsHandler *handler)
+ : entries_(stab, stab_size),
+ strings_(stabstr, stabstr_size),
+ iterator_(&entries_, big_endian, value_size),
+ unitized_(unitized),
+ handler_(handler),
+ string_offset_(0),
+ next_cu_string_offset_(0),
+ current_source_file_(NULL) { }
+
+const char *StabsReader::SymbolString() {
+ ptrdiff_t offset = string_offset_ + iterator_->name_offset;
+ if (offset < 0 || (size_t) offset >= strings_.Size()) {
+ handler_->Warning("symbol %d: name offset outside the string section\n",
+ iterator_->index);
+ // Return our null string, to keep our promise about all names being
+ // taken from the string section.
+ offset = 0;
+ }
+ return reinterpret_cast<const char *>(strings_.start + offset);
+}
+
+bool StabsReader::Process() {
+ while (!iterator_->at_end) {
+ if (iterator_->type == N_SO) {
+ if (! ProcessCompilationUnit())
+ return false;
+ } else if (iterator_->type == N_UNDF && unitized_) {
+ // In unitized STABS (including Linux STABS, and pretty much anything
+ // else that puts STABS data in sections), at the head of each
+ // compilation unit's entries there is an N_UNDF stab giving the
+ // number of symbols in the compilation unit, and the number of bytes
+ // that compilation unit's strings take up in the .stabstr section.
+ // Each CU's strings are separate; the n_strx values are offsets
+ // within the current CU's portion of the .stabstr section.
+ //
+ // As an optimization, the GNU linker combines all the
+ // compilation units into one, with a single N_UNDF at the
+ // beginning. However, other linkers, like Gold, do not perform
+ // this optimization.
+ string_offset_ = next_cu_string_offset_;
+ next_cu_string_offset_ = iterator_->value;
+ ++iterator_;
+ }
+#if defined(HAVE_MACH_O_NLIST_H)
+ // Export symbols in Mach-O binaries look like this.
+ // This is necessary in order to be able to dump symbols
+ // from OS X system libraries.
+ else if ((iterator_->type & N_STAB) == 0 &&
+ (iterator_->type & N_TYPE) == N_SECT) {
+ ProcessExtern();
+ }
+#endif
+ else {
+ ++iterator_;
+ }
+ }
+ return true;
+}
+
+bool StabsReader::ProcessCompilationUnit() {
+ assert(!iterator_->at_end && iterator_->type == N_SO);
+
+ // There may be an N_SO entry whose name ends with a slash,
+ // indicating the directory in which the compilation occurred.
+ // The build directory defaults to NULL.
+ const char *build_directory = NULL;
+ {
+ const char *name = SymbolString();
+ if (name[0] && name[strlen(name) - 1] == '/') {
+ build_directory = name;
+ ++iterator_;
+ }
+ }
+
+ // We expect to see an N_SO entry with a filename next, indicating
+ // the start of the compilation unit.
+ {
+ if (iterator_->at_end || iterator_->type != N_SO)
+ return true;
+ const char *name = SymbolString();
+ if (name[0] == '\0') {
+ // This seems to be a stray end-of-compilation-unit marker;
+ // consume it, but don't report the end, since we didn't see a
+ // beginning.
+ ++iterator_;
+ return true;
+ }
+ current_source_file_ = name;
+ }
+
+ if (! handler_->StartCompilationUnit(current_source_file_,
+ iterator_->value,
+ build_directory))
+ return false;
+
+ ++iterator_;
+
+ // The STABS documentation says that some compilers may emit
+ // additional N_SO entries with names immediately following the
+ // first, and that they should be ignored. However, the original
+ // Breakpad STABS reader doesn't ignore them, so we won't either.
+
+ // Process the body of the compilation unit, up to the next N_SO.
+ while (!iterator_->at_end && iterator_->type != N_SO) {
+ if (iterator_->type == N_FUN) {
+ if (! ProcessFunction())
+ return false;
+ } else if (iterator_->type == N_SLINE) {
+ // Mac OS X STABS place SLINE records before functions.
+ Line line;
+ // The value of an N_SLINE entry that appears outside a function is
+ // the absolute address of the line.
+ line.address = iterator_->value;
+ line.filename = current_source_file_;
+ // The n_desc of a N_SLINE entry is the line number. It's a
+ // signed 16-bit field; line numbers from 32768 to 65535 are
+ // stored as n-65536.
+ line.number = (uint16_t) iterator_->descriptor;
+ queued_lines_.push_back(line);
+ ++iterator_;
+ } else if (iterator_->type == N_SOL) {
+ current_source_file_ = SymbolString();
+ ++iterator_;
+ } else {
+ // Ignore anything else.
+ ++iterator_;
+ }
+ }
+
+ // An N_SO with an empty name indicates the end of the compilation
+ // unit. Default to zero.
+ uint64_t ending_address = 0;
+ if (!iterator_->at_end) {
+ assert(iterator_->type == N_SO);
+ const char *name = SymbolString();
+ if (name[0] == '\0') {
+ ending_address = iterator_->value;
+ ++iterator_;
+ }
+ }
+
+ if (! handler_->EndCompilationUnit(ending_address))
+ return false;
+
+ queued_lines_.clear();
+
+ return true;
+}
+
+bool StabsReader::ProcessFunction() {
+ assert(!iterator_->at_end && iterator_->type == N_FUN);
+
+ uint64_t function_address = iterator_->value;
+ // The STABS string for an N_FUN entry is the name of the function,
+ // followed by a colon, followed by type information for the
+ // function. We want to pass the name alone to StartFunction.
+ const char *stab_string = SymbolString();
+ const char *name_end = strchr(stab_string, ':');
+ if (! name_end)
+ name_end = stab_string + strlen(stab_string);
+ string name(stab_string, name_end - stab_string);
+ if (! handler_->StartFunction(name, function_address))
+ return false;
+ ++iterator_;
+
+ // If there were any SLINE records given before the function, report them now.
+ for (vector<Line>::const_iterator it = queued_lines_.begin();
+ it != queued_lines_.end(); it++) {
+ if (!handler_->Line(it->address, it->filename, it->number))
+ return false;
+ }
+ queued_lines_.clear();
+
+ while (!iterator_->at_end) {
+ if (iterator_->type == N_SO || iterator_->type == N_FUN)
+ break;
+ else if (iterator_->type == N_SLINE) {
+ // The value of an N_SLINE entry is the offset of the line from
+ // the function's start address.
+ uint64_t line_address = function_address + iterator_->value;
+ // The n_desc of a N_SLINE entry is the line number. It's a
+ // signed 16-bit field; line numbers from 32768 to 65535 are
+ // stored as n-65536.
+ uint16_t line_number = iterator_->descriptor;
+ if (! handler_->Line(line_address, current_source_file_, line_number))
+ return false;
+ ++iterator_;
+ } else if (iterator_->type == N_SOL) {
+ current_source_file_ = SymbolString();
+ ++iterator_;
+ } else
+ // Ignore anything else.
+ ++iterator_;
+ }
+
+ // We've reached the end of the function. See if we can figure out its
+ // ending address.
+ uint64_t ending_address = 0;
+ if (!iterator_->at_end) {
+ assert(iterator_->type == N_SO || iterator_->type == N_FUN);
+ if (iterator_->type == N_FUN) {
+ const char *symbol_name = SymbolString();
+ if (symbol_name[0] == '\0') {
+ // An N_FUN entry with no name is a terminator for this function;
+ // its value is the function's size.
+ ending_address = function_address + iterator_->value;
+ ++iterator_;
+ } else {
+ // An N_FUN entry with a name is the next function, and we can take
+ // its value as our ending address. Don't advance the iterator, as
+ // we'll use this symbol to start the next function as well.
+ ending_address = iterator_->value;
+ }
+ } else {
+ // An N_SO entry could be an end-of-compilation-unit marker, or the
+ // start of the next compilation unit, but in either case, its value
+ // is our ending address. We don't advance the iterator;
+ // ProcessCompilationUnit will decide what to do with this symbol.
+ ending_address = iterator_->value;
+ }
+ }
+
+ if (! handler_->EndFunction(ending_address))
+ return false;
+
+ return true;
+}
+
+bool StabsReader::ProcessExtern() {
+#if defined(HAVE_MACH_O_NLIST_H)
+ assert(!iterator_->at_end &&
+ (iterator_->type & N_STAB) == 0 &&
+ (iterator_->type & N_TYPE) == N_SECT);
+#endif
+
+ // TODO(mark): only do symbols in the text section?
+ if (!handler_->Extern(SymbolString(), iterator_->value))
+ return false;
+
+ ++iterator_;
+ return true;
+}
+
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/stabs_reader.h b/3rdParty/Breakpad/src/common/stabs_reader.h
new file mode 100644
index 0000000..d89afc0
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/stabs_reader.h
@@ -0,0 +1,326 @@
+// -*- 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>
+
+// stabs_reader.h: Define StabsReader, a parser for STABS debugging
+// information. A description of the STABS debugging format can be
+// found at:
+//
+// http://sourceware.org/gdb/current/onlinedocs/stabs_toc.html
+//
+// The comments here assume you understand the format.
+//
+// This parser can handle big-endian and little-endian data, and the symbol
+// values may be either 32 or 64 bits long. It handles both STABS in
+// sections (as used on Linux) and STABS appearing directly in an
+// a.out-like symbol table (as used in Darwin OS X Mach-O files).
+
+#ifndef COMMON_STABS_READER_H__
+#define COMMON_STABS_READER_H__
+
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef HAVE_CONFIG_H
+#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>
+#endif
+
+#include <string>
+#include <vector>
+
+#include "common/byte_cursor.h"
+#include "common/using_std_string.h"
+
+namespace google_breakpad {
+
+class StabsHandler;
+
+class StabsReader {
+ public:
+ // Create a reader for the STABS debug information whose .stab section is
+ // being traversed by ITERATOR, and whose .stabstr section is referred to
+ // by STRINGS. The reader will call the member functions of HANDLER to
+ // report the information it finds, when the reader's 'Process' member
+ // function is called.
+ //
+ // BIG_ENDIAN should be true if the entries in the .stab section are in
+ // big-endian form, or false if they are in little-endian form.
+ //
+ // VALUE_SIZE should be either 4 or 8, indicating the size of the 'value'
+ // field in each entry in bytes.
+ //
+ // UNITIZED should be true if the STABS data is stored in units with
+ // N_UNDF headers. This is usually the case for STABS stored in sections,
+ // like .stab/.stabstr, and usually not the case for STABS stored in the
+ // actual symbol table; UNITIZED should be true when parsing Linux stabs,
+ // false when parsing Mac OS X STABS. For details, see:
+ // http://sourceware.org/gdb/current/onlinedocs/stabs/Stab-Section-Basics.html
+ //
+ // Note that, in ELF, the .stabstr section should be found using the
+ // 'sh_link' field of the .stab section header, not by name.
+ StabsReader(const uint8_t *stab, size_t stab_size,
+ const uint8_t *stabstr, size_t stabstr_size,
+ bool big_endian, size_t value_size, bool unitized,
+ StabsHandler *handler);
+
+ // Process the STABS data, calling the handler's member functions to
+ // report what we find. While the handler functions return true,
+ // continue to process until we reach the end of the section. If we
+ // processed the entire section and all handlers returned true,
+ // return true. If any handler returned false, return false.
+ //
+ // This is only meant to be called once per StabsReader instance;
+ // resuming a prior processing pass that stopped abruptly isn't supported.
+ bool Process();
+
+ private:
+
+ // An class for walking arrays of STABS entries. This isolates the main
+ // STABS reader from the exact format (size; endianness) of the entries
+ // themselves.
+ class EntryIterator {
+ public:
+ // The contents of a STABS entry, adjusted for the host's endianness,
+ // word size, 'struct nlist' layout, and so on.
+ struct Entry {
+ // True if this iterator has reached the end of the entry array. When
+ // this is set, the other members of this structure are not valid.
+ bool at_end;
+
+ // The number of this entry within the list.
+ size_t index;
+
+ // The current entry's name offset. This is the offset within the
+ // current compilation unit's strings, as establish by the N_UNDF entries.
+ size_t name_offset;
+
+ // The current entry's type, 'other' field, descriptor, and value.
+ unsigned char type;
+ unsigned char other;
+ short descriptor;
+ uint64_t value;
+ };
+
+ // Create a EntryIterator walking the entries in BUFFER. Treat the
+ // entries as big-endian if BIG_ENDIAN is true, as little-endian
+ // otherwise. Assume each entry has a 'value' field whose size is
+ // VALUE_SIZE.
+ //
+ // This would not be terribly clean to extend to other format variations,
+ // but it's enough to handle Linux and Mac, and we'd like STABS to die
+ // anyway.
+ //
+ // For the record: on Linux, STABS entry values are always 32 bits,
+ // regardless of the architecture address size (don't ask me why); on
+ // Mac, they are 32 or 64 bits long. Oddly, the section header's entry
+ // size for a Linux ELF .stab section varies according to the ELF class
+ // from 12 to 20 even as the actual entries remain unchanged.
+ EntryIterator(const ByteBuffer *buffer, bool big_endian, size_t value_size);
+
+ // Move to the next entry. This function's behavior is undefined if
+ // at_end() is true when it is called.
+ EntryIterator &operator++() { Fetch(); entry_.index++; return *this; }
+
+ // Dereferencing this iterator produces a reference to an Entry structure
+ // that holds the current entry's values. The entry is owned by this
+ // EntryIterator, and will be invalidated at the next call to operator++.
+ const Entry &operator*() const { return entry_; }
+ const Entry *operator->() const { return &entry_; }
+
+ private:
+ // Read the STABS entry at cursor_, and set entry_ appropriately.
+ void Fetch();
+
+ // The size of entries' value field, in bytes.
+ size_t value_size_;
+
+ // A byte cursor traversing buffer_.
+ ByteCursor cursor_;
+
+ // Values for the entry this iterator refers to.
+ Entry entry_;
+ };
+
+ // A source line, saved to be reported later.
+ struct Line {
+ uint64_t address;
+ const char *filename;
+ int number;
+ };
+
+ // Return the name of the current symbol.
+ const char *SymbolString();
+
+ // Process a compilation unit starting at symbol_. Return true
+ // to continue processing, or false to abort.
+ bool ProcessCompilationUnit();
+
+ // Process a function in current_source_file_ starting at symbol_.
+ // Return true to continue processing, or false to abort.
+ bool ProcessFunction();
+
+ // Process an exported function symbol.
+ // Return true to continue processing, or false to abort.
+ bool ProcessExtern();
+
+ // The STABS entries being parsed.
+ ByteBuffer entries_;
+
+ // The string section to which the entries refer.
+ ByteBuffer strings_;
+
+ // The iterator walking the STABS entries.
+ EntryIterator iterator_;
+
+ // True if the data is "unitized"; see the explanation in the comment for
+ // StabsReader::StabsReader.
+ bool unitized_;
+
+ StabsHandler *handler_;
+
+ // The offset of the current compilation unit's strings within stabstr_.
+ size_t string_offset_;
+
+ // The value string_offset_ should have for the next compilation unit,
+ // as established by N_UNDF entries.
+ size_t next_cu_string_offset_;
+
+ // The current source file name.
+ const char *current_source_file_;
+
+ // Mac OS X STABS place SLINE records before functions; we accumulate a
+ // vector of these until we see the FUN record, and then report them
+ // after the StartFunction call.
+ std::vector<Line> queued_lines_;
+};
+
+// Consumer-provided callback structure for the STABS reader. Clients
+// of the STABS reader provide an instance of this structure. The
+// reader then invokes the member functions of that instance to report
+// the information it finds.
+//
+// The default definitions of the member functions do nothing, and return
+// true so processing will continue.
+class StabsHandler {
+ public:
+ StabsHandler() { }
+ virtual ~StabsHandler() { }
+
+ // Some general notes about the handler callback functions:
+
+ // Processing proceeds until the end of the .stabs section, or until
+ // one of these functions returns false.
+
+ // The addresses given are as reported in the STABS info, without
+ // regard for whether the module may be loaded at different
+ // addresses at different times (a shared library, say). When
+ // processing STABS from an ELF shared library, the addresses given
+ // all assume the library is loaded at its nominal load address.
+ // They are *not* offsets from the nominal load address. If you
+ // want offsets, you must subtract off the library's nominal load
+ // address.
+
+ // The arguments to these functions named FILENAME are all
+ // references to strings stored in the .stabstr section. Because
+ // both the Linux and Solaris linkers factor out duplicate strings
+ // from the .stabstr section, the consumer can assume that if two
+ // FILENAME values are different addresses, they represent different
+ // file names.
+ //
+ // Thus, it's safe to use (say) std::map<char *, ...>, which does
+ // string address comparisons, not string content comparisons.
+ // Since all the strings are in same array of characters --- the
+ // .stabstr section --- comparing their addresses produces
+ // predictable, if not lexicographically meaningful, results.
+
+ // Begin processing a compilation unit whose main source file is
+ // named FILENAME, and whose base address is ADDRESS. If
+ // BUILD_DIRECTORY is non-NULL, it is the name of the build
+ // directory in which the compilation occurred.
+ virtual bool StartCompilationUnit(const char *filename, uint64_t address,
+ const char *build_directory) {
+ return true;
+ }
+
+ // Finish processing the compilation unit. If ADDRESS is non-zero,
+ // it is the ending address of the compilation unit. If ADDRESS is
+ // zero, then the compilation unit's ending address is not
+ // available, and the consumer must infer it by other means.
+ virtual bool EndCompilationUnit(uint64_t address) { return true; }
+
+ // Begin processing a function named NAME, whose starting address is
+ // ADDRESS. This function belongs to the compilation unit that was
+ // most recently started but not ended.
+ //
+ // Note that, unlike filenames, NAME is not a pointer into the
+ // .stabstr section; this is because the name as it appears in the
+ // STABS data is followed by type information. The value passed to
+ // StartFunction is the function name alone.
+ //
+ // In languages that use name mangling, like C++, NAME is mangled.
+ virtual bool StartFunction(const string &name, uint64_t address) {
+ return true;
+ }
+
+ // Finish processing the function. If ADDRESS is non-zero, it is
+ // the ending address for the function. If ADDRESS is zero, then
+ // the function's ending address is not available, and the consumer
+ // must infer it by other means.
+ virtual bool EndFunction(uint64_t address) { return true; }
+
+ // Report that the code at ADDRESS is attributable to line NUMBER of
+ // the source file named FILENAME. The caller must infer the ending
+ // address of the line.
+ virtual bool Line(uint64_t address, const char *filename, int number) {
+ return true;
+ }
+
+ // Report that an exported function NAME is present at ADDRESS.
+ // The size of the function is unknown.
+ virtual bool Extern(const string &name, uint64_t address) {
+ return true;
+ }
+
+ // Report a warning. FORMAT is a printf-like format string,
+ // specifying how to format the subsequent arguments.
+ virtual void Warning(const char *format, ...) = 0;
+};
+
+} // namespace google_breakpad
+
+#endif // COMMON_STABS_READER_H__
diff --git a/3rdParty/Breakpad/src/common/stabs_to_module.cc b/3rdParty/Breakpad/src/common/stabs_to_module.cc
new file mode 100644
index 0000000..e59aebd
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/stabs_to_module.cc
@@ -0,0 +1,200 @@
+// 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.cc --- implement the StabsToModule class.
+
+#include <assert.h>
+#include <cxxabi.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+#include <algorithm>
+
+#include "common/stabs_to_module.h"
+#include "common/using_std_string.h"
+
+namespace google_breakpad {
+
+// Demangle using abi call.
+// Older GCC may not support it.
+static string Demangle(const string &mangled) {
+ int status = 0;
+ char *demangled = abi::__cxa_demangle(mangled.c_str(), NULL, NULL, &status);
+ if (status == 0 && demangled != NULL) {
+ string str(demangled);
+ free(demangled);
+ return str;
+ }
+ return string(mangled);
+}
+
+StabsToModule::~StabsToModule() {
+ // Free any functions we've accumulated but not added to the module.
+ for (vector<Module::Function *>::const_iterator func_it = functions_.begin();
+ func_it != functions_.end(); func_it++)
+ delete *func_it;
+ // Free any function that we're currently within.
+ delete current_function_;
+}
+
+bool StabsToModule::StartCompilationUnit(const char *name, uint64_t address,
+ const char *build_directory) {
+ assert(!in_compilation_unit_);
+ in_compilation_unit_ = true;
+ current_source_file_name_ = name;
+ current_source_file_ = module_->FindFile(name);
+ comp_unit_base_address_ = address;
+ boundaries_.push_back(static_cast<Module::Address>(address));
+ return true;
+}
+
+bool StabsToModule::EndCompilationUnit(uint64_t address) {
+ assert(in_compilation_unit_);
+ in_compilation_unit_ = false;
+ comp_unit_base_address_ = 0;
+ current_source_file_ = NULL;
+ current_source_file_name_ = NULL;
+ if (address)
+ boundaries_.push_back(static_cast<Module::Address>(address));
+ return true;
+}
+
+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;
+ f->size = 0; // We compute this in StabsToModule::Finalize().
+ f->parameter_size = 0; // We don't provide this information.
+ current_function_ = f;
+ boundaries_.push_back(static_cast<Module::Address>(address));
+ return true;
+}
+
+bool StabsToModule::EndFunction(uint64_t address) {
+ assert(current_function_);
+ // Functions in this compilation unit should have address bigger
+ // than the compilation unit's starting address. There may be a lot
+ // of duplicated entries for functions in the STABS data. We will
+ // count on the Module to remove the duplicates.
+ if (current_function_->address >= comp_unit_base_address_)
+ functions_.push_back(current_function_);
+ else
+ delete current_function_;
+ current_function_ = NULL;
+ if (address)
+ boundaries_.push_back(static_cast<Module::Address>(address));
+ return true;
+}
+
+bool StabsToModule::Line(uint64_t address, const char *name, int number) {
+ assert(current_function_);
+ assert(current_source_file_);
+ if (name != current_source_file_name_) {
+ current_source_file_ = module_->FindFile(name);
+ current_source_file_name_ = name;
+ }
+ Module::Line line;
+ line.address = address;
+ line.size = 0; // We compute this in StabsToModule::Finalize().
+ line.file = current_source_file_;
+ line.number = number;
+ current_function_->lines.push_back(line);
+ return true;
+}
+
+bool StabsToModule::Extern(const string &name, uint64_t address) {
+ Module::Extern *ext = new Module::Extern;
+ // Older libstdc++ demangle implementations can crash on unexpected
+ // input, so be careful about what gets passed in.
+ if (name.compare(0, 3, "__Z") == 0) {
+ ext->name = Demangle(name.substr(1));
+ } else if (name[0] == '_') {
+ ext->name = name.substr(1);
+ } else {
+ ext->name = name;
+ }
+ ext->address = address;
+ module_->AddExtern(ext);
+ return true;
+}
+
+void StabsToModule::Warning(const char *format, ...) {
+ va_list args;
+ va_start(args, format);
+ vfprintf(stderr, format, args);
+ va_end(args);
+}
+
+void StabsToModule::Finalize() {
+ // Sort our boundary list, so we can search it quickly.
+ sort(boundaries_.begin(), boundaries_.end());
+ // Sort all functions by address, just for neatness.
+ sort(functions_.begin(), functions_.end(),
+ Module::Function::CompareByAddress);
+
+ for (vector<Module::Function *>::const_iterator func_it = functions_.begin();
+ func_it != functions_.end();
+ func_it++) {
+ Module::Function *f = *func_it;
+ // Compute the function f's size.
+ vector<Module::Address>::const_iterator boundary
+ = std::upper_bound(boundaries_.begin(), boundaries_.end(), f->address);
+ if (boundary != boundaries_.end())
+ f->size = *boundary - f->address;
+ else
+ // If this is the last function in the module, and the STABS
+ // reader was unable to give us its ending address, then assign
+ // it a bogus, very large value. This will happen at most once
+ // per module: since we've added all functions' addresses to the
+ // boundary table, only one can be the last.
+ f->size = kFallbackSize;
+
+ // Compute sizes for each of the function f's lines --- if it has any.
+ if (!f->lines.empty()) {
+ stable_sort(f->lines.begin(), f->lines.end(),
+ Module::Line::CompareByAddress);
+ vector<Module::Line>::iterator last_line = f->lines.end() - 1;
+ for (vector<Module::Line>::iterator line_it = f->lines.begin();
+ line_it != last_line; line_it++)
+ line_it[0].size = line_it[1].address - line_it[0].address;
+ // Compute the size of the last line from f's end address.
+ last_line->size = (f->address + f->size) - last_line->address;
+ }
+ }
+ // Now that everything has a size, add our functions to the module, and
+ // dispose of our private list.
+ module_->AddFunctions(functions_.begin(), functions_.end());
+ functions_.clear();
+}
+
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/stabs_to_module.h b/3rdParty/Breakpad/src/common/stabs_to_module.h
new file mode 100644
index 0000000..5e04fa7
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/stabs_to_module.h
@@ -0,0 +1,143 @@
+// -*- 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>
+
+// dump_stabs.h: Define the StabsToModule class, which receives
+// STABS debugging information from a parser and adds it to a Breakpad
+// symbol file.
+
+#ifndef BREAKPAD_COMMON_STABS_TO_MODULE_H_
+#define BREAKPAD_COMMON_STABS_TO_MODULE_H_
+
+#include <stdint.h>
+
+#include <string>
+#include <vector>
+
+#include "common/module.h"
+#include "common/stabs_reader.h"
+#include "common/using_std_string.h"
+
+namespace google_breakpad {
+
+using std::vector;
+
+// A StabsToModule is a handler that receives parsed STABS debugging
+// information from a StabsReader, and uses that to populate
+// a Module. (All classes are in the google_breakpad namespace.) A
+// Module represents the contents of a Breakpad symbol file, and knows
+// how to write itself out as such. A StabsToModule thus acts as
+// the bridge between STABS and Breakpad data.
+// When processing Darwin Mach-O files, this also receives public linker
+// symbols, like those found in system libraries.
+class StabsToModule: public google_breakpad::StabsHandler {
+ public:
+ // Receive parsed debugging information from a StabsReader, and
+ // store it all in MODULE.
+ StabsToModule(Module *module) :
+ module_(module),
+ in_compilation_unit_(false),
+ comp_unit_base_address_(0),
+ current_function_(NULL),
+ current_source_file_(NULL),
+ current_source_file_name_(NULL) { }
+ ~StabsToModule();
+
+ // The standard StabsHandler virtual member functions.
+ bool StartCompilationUnit(const char *name, uint64_t address,
+ const char *build_directory);
+ bool EndCompilationUnit(uint64_t address);
+ bool StartFunction(const string &name, uint64_t address);
+ bool EndFunction(uint64_t address);
+ bool Line(uint64_t address, const char *name, int number);
+ bool Extern(const string &name, uint64_t address);
+ void Warning(const char *format, ...);
+
+ // Do any final processing necessary to make module_ contain all the
+ // data provided by the STABS reader.
+ //
+ // Because STABS does not provide reliable size information for
+ // functions and lines, we need to make a pass over the data after
+ // processing all the STABS to compute those sizes. We take care of
+ // that here.
+ void Finalize();
+
+ private:
+
+ // An arbitrary, but very large, size to use for functions whose
+ // size we can't compute properly.
+ static const uint64_t kFallbackSize = 0x10000000;
+
+ // The module we're contributing debugging info to.
+ Module *module_;
+
+ // The functions we've generated so far. We don't add these to
+ // module_ as we parse them. Instead, we wait until we've computed
+ // their ending address, and their lines' ending addresses.
+ //
+ // We could just stick them in module_ from the outset, but if
+ // module_ already contains data gathered from other debugging
+ // formats, that would complicate the size computation.
+ vector<Module::Function *> functions_;
+
+ // Boundary addresses. STABS doesn't necessarily supply sizes for
+ // functions and lines, so we need to compute them ourselves by
+ // finding the next object.
+ vector<Module::Address> boundaries_;
+
+ // True if we are currently within a compilation unit: we have gotten a
+ // StartCompilationUnit call, but no matching EndCompilationUnit call
+ // yet. We use this for sanity checks.
+ bool in_compilation_unit_;
+
+ // The base address of the current compilation unit. We use this to
+ // recognize functions we should omit from the symbol file. (If you
+ // know the details of why we omit these, please patch this
+ // comment.)
+ Module::Address comp_unit_base_address_;
+
+ // The function we're currently contributing lines to.
+ Module::Function *current_function_;
+
+ // The last Module::File we got a line number in.
+ Module::File *current_source_file_;
+
+ // The pointer in the .stabstr section of the name that
+ // current_source_file_ is built from. This allows us to quickly
+ // recognize when the current line is in the same file as the
+ // previous one (which it usually is).
+ const char *current_source_file_name_;
+};
+
+} // namespace google_breakpad
+
+#endif // BREAKPAD_COMMON_STABS_TO_MODULE_H_
diff --git a/3rdParty/Breakpad/src/common/string_conversion.cc b/3rdParty/Breakpad/src/common/string_conversion.cc
new file mode 100644
index 0000000..27fb8cd
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/string_conversion.cc
@@ -0,0 +1,155 @@
+// 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 <string.h>
+
+#include "common/convert_UTF.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) {
+ 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);
+ ConversionResult result = ConvertUTF8toUTF16(&source_ptr, source_end_ptr,
+ &target_ptr, target_end_ptr,
+ strictConversion);
+
+ // Resize to be the size of the # of converted characters + NULL
+ out->resize(result == conversionOK ? target_ptr - &(*out)[0] + 1: 0);
+}
+
+int UTF8ToUTF16Char(const char *in, int in_length, u_int16_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);
+ out[0] = out[1] = 0;
+
+ // Process one character at a time
+ while (1) {
+ ConversionResult result = ConvertUTF8toUTF16(&source_ptr, source_end_ptr,
+ &target_ptr, target_end_ptr,
+ strictConversion);
+
+ if (result == conversionOK)
+ return static_cast<int>(source_ptr - reinterpret_cast<const UTF8 *>(in));
+
+ // Add another character to the input stream and try again
+ source_ptr = reinterpret_cast<const UTF8 *>(in);
+ ++source_end_ptr;
+
+ if (source_end_ptr > reinterpret_cast<const UTF8 *>(in) + in_length)
+ break;
+ }
+
+ return 0;
+}
+
+void UTF32ToUTF16(const wchar_t *in, vector<u_int16_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);
+ ConversionResult result = ConvertUTF32toUTF16(&source_ptr, source_end_ptr,
+ &target_ptr, target_end_ptr,
+ strictConversion);
+
+ // Resize to be the size of the # of converted characters + NULL
+ out->resize(result == conversionOK ? target_ptr - &(*out)[0] + 1: 0);
+}
+
+void UTF32ToUTF16Char(wchar_t in, u_int16_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);
+ out[0] = out[1] = 0;
+ ConversionResult result = ConvertUTF32toUTF16(&source_ptr, source_end_ptr,
+ &target_ptr, target_end_ptr,
+ strictConversion);
+
+ if (result != conversionOK) {
+ out[0] = out[1] = 0;
+ }
+}
+
+static inline u_int16_t Swap(u_int16_t value) {
+ return (value >> 8) | (value << 8);
+}
+
+string UTF16ToUTF8(const vector<u_int16_t> &in, bool swap) {
+ const UTF16 *source_ptr = &in[0];
+ scoped_ptr<u_int16_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()]);
+ UTF16 *source_buffer_ptr = source_buffer.get();
+ for (vector<u_int16_t>::const_iterator it = in.begin();
+ it != in.end(); ++it, ++idx)
+ source_buffer_ptr[idx] = Swap(*it);
+
+ source_ptr = source_buffer.get();
+ }
+
+ // The maximum expansion would be 4x the size of the input string.
+ const UTF16 *source_end_ptr = source_ptr + in.size();
+ size_t target_capacity = in.size() * 4;
+ 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,
+ &target_ptr, target_end_ptr,
+ strictConversion);
+
+ if (result == conversionOK) {
+ const char *targetPtr = reinterpret_cast<const char *>(target_buffer.get());
+ return targetPtr;
+ }
+
+ return "";
+}
+
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/string_conversion.h b/3rdParty/Breakpad/src/common/string_conversion.h
new file mode 100644
index 0000000..eeed4d2
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/string_conversion.h
@@ -0,0 +1,68 @@
+// 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.
+
+// string_conversion.h: Conversion between different UTF-8/16/32 encodings.
+
+#ifndef COMMON_STRING_CONVERSION_H__
+#define COMMON_STRING_CONVERSION_H__
+
+#include <string>
+#include <vector>
+
+#include "common/using_std_string.h"
+#include "google_breakpad/common/breakpad_types.h"
+
+namespace google_breakpad {
+
+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);
+
+// 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]);
+
+// 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);
+
+// 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]);
+
+// Convert |in| to UTF-8. If |swap| is true, swap bytes before converting.
+string UTF16ToUTF8(const vector<u_int16_t> &in, bool swap);
+
+} // namespace google_breakpad
+
+#endif // COMMON_STRING_CONVERSION_H__
diff --git a/3rdParty/Breakpad/src/common/using_std_string.h b/3rdParty/Breakpad/src/common/using_std_string.h
new file mode 100644
index 0000000..13c1da5
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/using_std_string.h
@@ -0,0 +1,65 @@
+// -*- 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: Ivan Penkov
+
+// using_std_string.h: Allows building this code in environments where
+// global string (::string) exists.
+//
+// The problem:
+// -------------
+// Let's say you want to build this code in an environment where a global
+// string type is defined (i.e. ::string). Now, let's suppose that ::string
+// is different that std::string and you'd like to have the option to easily
+// choose between the two string types. Ideally you'd like to control which
+// string type is chosen by simply #defining an identifier.
+//
+// The solution:
+// -------------
+// #define HAS_GLOBAL_STRING somewhere in a global header file and then
+// globally replace std::string with string. Then include this header
+// file everywhere where string is used. If you want to revert back to
+// using std::string, simply remove the #define (HAS_GLOBAL_STRING).
+
+#ifndef THIRD_PARTY_BREAKPAD_SRC_COMMON_USING_STD_STRING_H_
+#define THIRD_PARTY_BREAKPAD_SRC_COMMON_USING_STD_STRING_H_
+
+#ifdef HAS_GLOBAL_STRING
+ typedef ::string google_breakpad_string;
+#else
+ using std::string;
+ typedef std::string google_breakpad_string;
+#endif
+
+// Inicates that type google_breakpad_string is defined
+#define HAS_GOOGLE_BREAKPAD_STRING
+
+#endif // THIRD_PARTY_BREAKPAD_SRC_COMMON_USING_STD_STRING_H_
diff --git a/3rdParty/Breakpad/src/common/windows/guid_string.cc b/3rdParty/Breakpad/src/common/windows/guid_string.cc
new file mode 100644
index 0000000..b7f877e
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/windows/guid_string.cc
@@ -0,0 +1,76 @@
+// 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.
+
+// guid_string.cc: Convert GUIDs to strings.
+//
+// See guid_string.h for documentation.
+
+#include <wchar.h>
+
+#include "common/windows/string_utils-inl.h"
+
+#include "common/windows/guid_string.h"
+
+namespace google_breakpad {
+
+// static
+wstring GUIDString::GUIDToWString(GUID *guid) {
+ wchar_t guid_string[37];
+ swprintf(
+ guid_string, sizeof(guid_string) / sizeof(guid_string[0]),
+ L"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ guid->Data1, guid->Data2, guid->Data3,
+ guid->Data4[0], guid->Data4[1], guid->Data4[2],
+ guid->Data4[3], guid->Data4[4], guid->Data4[5],
+ guid->Data4[6], guid->Data4[7]);
+
+ // remove when VC++7.1 is no longer supported
+ guid_string[sizeof(guid_string) / sizeof(guid_string[0]) - 1] = L'\0';
+
+ return wstring(guid_string);
+}
+
+// static
+wstring GUIDString::GUIDToSymbolServerWString(GUID *guid) {
+ wchar_t guid_string[33];
+ swprintf(
+ guid_string, sizeof(guid_string) / sizeof(guid_string[0]),
+ L"%08X%04X%04X%02X%02X%02X%02X%02X%02X%02X%02X",
+ guid->Data1, guid->Data2, guid->Data3,
+ guid->Data4[0], guid->Data4[1], guid->Data4[2],
+ guid->Data4[3], guid->Data4[4], guid->Data4[5],
+ guid->Data4[6], guid->Data4[7]);
+
+ // remove when VC++7.1 is no longer supported
+ guid_string[sizeof(guid_string) / sizeof(guid_string[0]) - 1] = L'\0';
+
+ return wstring(guid_string);
+}
+
+} // namespace google_breakpad
diff --git a/3rdParty/Breakpad/src/common/windows/guid_string.h b/3rdParty/Breakpad/src/common/windows/guid_string.h
new file mode 100644
index 0000000..f8aa8a2
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/windows/guid_string.h
@@ -0,0 +1,58 @@
+// 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.
+
+// guid_string.cc: Convert GUIDs to strings.
+
+#ifndef COMMON_WINDOWS_GUID_STRING_H__
+#define COMMON_WINDOWS_GUID_STRING_H__
+
+#include <Guiddef.h>
+
+#include <string>
+
+namespace google_breakpad {
+
+using std::wstring;
+
+class GUIDString {
+ public:
+ // Converts guid to a string in the format recommended by RFC 4122 and
+ // returns the string.
+ static wstring GUIDToWString(GUID *guid);
+
+ // Converts guid to a string formatted as uppercase hexadecimal, with
+ // no separators, and returns the string. This is the format used for
+ // symbol server identifiers, although identifiers have an age tacked
+ // on to the string.
+ static wstring GUIDToSymbolServerWString(GUID *guid);
+};
+
+} // namespace google_breakpad
+
+#endif // COMMON_WINDOWS_GUID_STRING_H__
diff --git a/3rdParty/Breakpad/src/common/windows/string_utils-inl.h b/3rdParty/Breakpad/src/common/windows/string_utils-inl.h
new file mode 100644
index 0000000..d281aaa
--- /dev/null
+++ b/3rdParty/Breakpad/src/common/windows/string_utils-inl.h
@@ -0,0 +1,142 @@
+// 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.
+
+// 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__
+
+#include <stdarg.h>
+#include <wchar.h>
+
+#include <string>
+
+// The "ll" printf format size specifier corresponding to |long long| was
+// intrudced in MSVC8. Earlier versions did not provide this size specifier,
+// but "I64" can be used to print 64-bit types. Don't use "I64" where "ll"
+// is available, in the event of oddball systems where |long long| is not
+// 64 bits wide.
+#if _MSC_VER >= 1400 // MSVC 2005/8
+#define WIN_STRING_FORMAT_LL "ll"
+#else // MSC_VER >= 1400
+#define WIN_STRING_FORMAT_LL "I64"
+#endif // MSC_VER >= 1400
+
+// A nonconforming version of swprintf, without the length argument, was
+// included with the CRT prior to MSVC8. Although a conforming version was
+// also available via an overload, it is not reliably chosen. _snwprintf
+// behaves as a standards-confirming swprintf should, so force the use of
+// _snwprintf when using older CRTs.
+#if _MSC_VER < 1400 // MSVC 2005/8
+#define swprintf _snwprintf
+#else
+// For MSVC8 and newer, swprintf_s is the recommended method. Conveniently,
+// it takes the same argument list as swprintf.
+#define swprintf swprintf_s
+#endif // MSC_VER < 1400
+
+namespace google_breakpad {
+
+using std::string;
+using std::wstring;
+
+class WindowsStringUtils {
+ public:
+ // Roughly equivalent to MSVC8's wcscpy_s, except pre-MSVC8, this does
+ // not fail if source is longer than destination_size. The destination
+ // buffer is always 0-terminated.
+ static void safe_wcscpy(wchar_t *destination, size_t destination_size,
+ const wchar_t *source);
+
+ // Roughly equivalent to MSVC8's wcsncpy_s, except that _TRUNCATE cannot
+ // be passed directly, and pre-MSVC8, this will not fail if source or count
+ // are longer than destination_size. The destination buffer is always
+ // 0-terminated.
+ static void safe_wcsncpy(wchar_t *destination, size_t destination_size,
+ const wchar_t *source, size_t count);
+
+ // Performs multi-byte to wide character conversion on C++ strings, using
+ // mbstowcs_s (MSVC8) or mbstowcs (pre-MSVC8). Returns false on failure,
+ // without setting wcs.
+ static bool safe_mbstowcs(const string &mbs, wstring *wcs);
+
+ // The inverse of safe_mbstowcs.
+ static bool safe_wcstombs(const wstring &wcs, string *mbs);
+
+ // Returns the base name of a file, e.g. strips off the path.
+ static wstring GetBaseName(const wstring &filename);
+
+ private:
+ // Disallow instantiation and other object-based operations.
+ WindowsStringUtils();
+ WindowsStringUtils(const WindowsStringUtils&);
+ ~WindowsStringUtils();
+ void operator=(const WindowsStringUtils&);
+};
+
+// static
+inline void WindowsStringUtils::safe_wcscpy(wchar_t *destination,
+ size_t destination_size,
+ const wchar_t *source) {
+#if _MSC_VER >= 1400 // MSVC 2005/8
+ wcscpy_s(destination, destination_size, source);
+#else // _MSC_VER >= 1400
+ // Pre-MSVC 2005/8 doesn't have wcscpy_s. Simulate it with wcsncpy.
+ // wcsncpy doesn't 0-terminate the destination buffer if the source string
+ // is longer than size. Ensure that the destination is 0-terminated.
+ wcsncpy(destination, source, destination_size);
+ if (destination && destination_size)
+ destination[destination_size - 1] = 0;
+#endif // _MSC_VER >= 1400
+}
+
+// static
+inline void WindowsStringUtils::safe_wcsncpy(wchar_t *destination,
+ size_t destination_size,
+ const wchar_t *source,
+ size_t count) {
+#if _MSC_VER >= 1400 // MSVC 2005/8
+ wcsncpy_s(destination, destination_size, source, count);
+#else // _MSC_VER >= 1400
+ // Pre-MSVC 2005/8 doesn't have wcsncpy_s. Simulate it with wcsncpy.
+ // wcsncpy doesn't 0-terminate the destination buffer if the source string
+ // is longer than size. Ensure that the destination is 0-terminated.
+ if (destination_size < count)
+ count = destination_size;
+
+ wcsncpy(destination, source, count);
+ if (destination && count)
+ destination[count - 1] = 0;
+#endif // _MSC_VER >= 1400
+}
+
+} // namespace google_breakpad
+
+#endif // COMMON_WINDOWS_STRING_UTILS_INL_H__