1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/toolkit/crashreporter/google-breakpad/src/processor/stack_frame_symbolizer.cc Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,133 @@
1.4 +// Copyright (c) 2012 Google Inc.
1.5 +// All rights reserved.
1.6 +//
1.7 +// Redistribution and use in source and binary forms, with or without
1.8 +// modification, are permitted provided that the following conditions are
1.9 +// met:
1.10 +//
1.11 +// * Redistributions of source code must retain the above copyright
1.12 +// notice, this list of conditions and the following disclaimer.
1.13 +// * Redistributions in binary form must reproduce the above
1.14 +// copyright notice, this list of conditions and the following disclaimer
1.15 +// in the documentation and/or other materials provided with the
1.16 +// distribution.
1.17 +// * Neither the name of Google Inc. nor the names of its
1.18 +// contributors may be used to endorse or promote products derived from
1.19 +// this software without specific prior written permission.
1.20 +//
1.21 +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.22 +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.23 +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.24 +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
1.25 +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.26 +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.27 +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1.28 +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1.29 +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1.30 +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.31 +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.32 +
1.33 +// Implementation of StackFrameSymbolizer, which encapsulates the logic of how
1.34 +// SourceLineResolverInterface interacts with SymbolSupplier to fill source
1.35 +// line information in a stack frame, and also looks up WindowsFrameInfo or
1.36 +// CFIFrameInfo for a stack frame.
1.37 +
1.38 +#include "google_breakpad/processor/stack_frame_symbolizer.h"
1.39 +
1.40 +#include <assert.h>
1.41 +
1.42 +#include "common/scoped_ptr.h"
1.43 +#include "google_breakpad/processor/code_module.h"
1.44 +#include "google_breakpad/processor/code_modules.h"
1.45 +#include "google_breakpad/processor/source_line_resolver_interface.h"
1.46 +#include "google_breakpad/processor/stack_frame.h"
1.47 +#include "google_breakpad/processor/symbol_supplier.h"
1.48 +#include "google_breakpad/processor/system_info.h"
1.49 +#include "processor/linked_ptr.h"
1.50 +#include "common/logging.h"
1.51 +
1.52 +namespace google_breakpad {
1.53 +
1.54 +StackFrameSymbolizer::StackFrameSymbolizer(
1.55 + SymbolSupplier* supplier,
1.56 + SourceLineResolverInterface* resolver) : supplier_(supplier),
1.57 + resolver_(resolver) { }
1.58 +
1.59 +StackFrameSymbolizer::SymbolizerResult StackFrameSymbolizer::FillSourceLineInfo(
1.60 + const CodeModules* modules,
1.61 + const SystemInfo* system_info,
1.62 + StackFrame* frame) {
1.63 + assert(frame);
1.64 +
1.65 + if (!modules) return kError;
1.66 + const CodeModule* module = modules->GetModuleForAddress(frame->instruction);
1.67 + if (!module) return kError;
1.68 + frame->module = module;
1.69 +
1.70 + if (!resolver_) return kError; // no resolver.
1.71 + // If module is known to have missing symbol file, return.
1.72 + if (no_symbol_modules_.find(module->code_file()) !=
1.73 + no_symbol_modules_.end()) {
1.74 + return kError;
1.75 + }
1.76 +
1.77 + // If module is already loaded, go ahead to fill source line info and return.
1.78 + if (resolver_->HasModule(frame->module)) {
1.79 + resolver_->FillSourceLineInfo(frame);
1.80 + return kNoError;
1.81 + }
1.82 +
1.83 + // Module needs to fetch symbol file. First check to see if supplier exists.
1.84 + if (!supplier_) {
1.85 + return kError;
1.86 + }
1.87 +
1.88 + // Start fetching symbol from supplier.
1.89 + string symbol_file;
1.90 + char* symbol_data = NULL;
1.91 + SymbolSupplier::SymbolResult symbol_result = supplier_->GetCStringSymbolData(
1.92 + module, system_info, &symbol_file, &symbol_data);
1.93 +
1.94 + switch (symbol_result) {
1.95 + case SymbolSupplier::FOUND: {
1.96 + bool load_success = resolver_->LoadModuleUsingMemoryBuffer(frame->module,
1.97 + symbol_data);
1.98 + if (resolver_->ShouldDeleteMemoryBufferAfterLoadModule()) {
1.99 + supplier_->FreeSymbolData(module);
1.100 + }
1.101 +
1.102 + if (load_success) {
1.103 + resolver_->FillSourceLineInfo(frame);
1.104 + return kNoError;
1.105 + } else {
1.106 + BPLOG(ERROR) << "Failed to load symbol file in resolver.";
1.107 + no_symbol_modules_.insert(module->code_file());
1.108 + return kError;
1.109 + }
1.110 + }
1.111 +
1.112 + case SymbolSupplier::NOT_FOUND:
1.113 + no_symbol_modules_.insert(module->code_file());
1.114 + return kError;
1.115 +
1.116 + case SymbolSupplier::INTERRUPT:
1.117 + return kInterrupt;
1.118 +
1.119 + default:
1.120 + BPLOG(ERROR) << "Unknown SymbolResult enum: " << symbol_result;
1.121 + return kError;
1.122 + }
1.123 + return kError;
1.124 +}
1.125 +
1.126 +WindowsFrameInfo* StackFrameSymbolizer::FindWindowsFrameInfo(
1.127 + const StackFrame* frame) {
1.128 + return resolver_ ? resolver_->FindWindowsFrameInfo(frame) : NULL;
1.129 +}
1.130 +
1.131 +CFIFrameInfo* StackFrameSymbolizer::FindCFIFrameInfo(
1.132 + const StackFrame* frame) {
1.133 + return resolver_ ? resolver_->FindCFIFrameInfo(frame) : NULL;
1.134 +}
1.135 +
1.136 +} // namespace google_breakpad
