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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/dwarf/dwarf2diehandler.cc
parentead6c91f24d77de3319e77ae1354387407065ef1 (diff)
downloadswift-contrib-4397df6b409ca84f63838fa635fc2abe8af80b71.zip
swift-contrib-4397df6b409ca84f63838fa635fc2abe8af80b71.tar.bz2
Added Breakpad support for Windows.
Diffstat (limited to '3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.cc')
-rw-r--r--3rdParty/Breakpad/src/common/dwarf/dwarf2diehandler.cc199
1 files changed, 199 insertions, 0 deletions
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