Check-in stack_frame_symbolizer.[h|cc] that were missing in r1068.
http://breakpad.appspot.com/484002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1069 4c0a9323-5329-0410-9bdc-e9ce6186880e
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src
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src/google_breakpad/processor/stack_frame_symbolizer.h
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src/google_breakpad/processor/stack_frame_symbolizer.h
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// -*- mode: C++ -*-
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// Copyright (c) 2012 Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Helper class that encapsulates the logic of how symbol supplier interacts
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// with source line resolver to fill stack frame information.
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#ifndef GOOGLE_BREAKPAD_PROCESSOR_STACK_FRAME_SYMBOLIZER_H__
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#define GOOGLE_BREAKPAD_PROCESSOR_STACK_FRAME_SYMBOLIZER_H__
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#include <set>
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#include <string>
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#include "common/using_std_string.h"
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#include "google_breakpad/common/breakpad_types.h"
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#include "google_breakpad/processor/code_module.h"
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namespace google_breakpad {
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class CFIFrameInfo;
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class CodeModules;
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class SymbolSupplier;
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class SourceLineResolverInterface;
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struct StackFrame;
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struct SystemInfo;
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struct WindowsFrameInfo;
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class StackFrameSymbolizer {
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public:
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enum SymbolizerResult {
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// Symbol data was found and successfully loaded in resolver.
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// This does NOT guarantee source line info is found within symbol file.
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NO_ERROR,
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// This indicates non-critical error, such as, no code module found for
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// frame's instruction, no symbol file, or resolver failed to load symbol.
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ERROR,
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// This indicates error for which stack walk should be interrupted
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// and retried in future.
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INTERRUPT,
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};
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StackFrameSymbolizer(SymbolSupplier* supplier,
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SourceLineResolverInterface* resolver);
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virtual ~StackFrameSymbolizer() { }
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// Encapsulate the step of resolving source line info for a stack frame.
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// "frame" must not be NULL.
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virtual SymbolizerResult FillSourceLineInfo(const CodeModules* modules,
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const SystemInfo* system_info,
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StackFrame* stack_frame);
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virtual WindowsFrameInfo* FindWindowsFrameInfo(const StackFrame* frame);
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virtual CFIFrameInfo* FindCFIFrameInfo(const StackFrame* frame);
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// Reset internal (locally owned) data as if the helper is re-instantiated.
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// A typical case is to call Reset() after processing an individual report
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// before start to process next one, in order to reset internal information
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// about missing symbols found so far.
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virtual void Reset() { no_symbol_modules_.clear(); }
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// Returns true if there is valid implementation for stack symbolization.
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virtual bool HasImplementation() { return resolver_ && supplier_; }
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SourceLineResolverInterface* resolver() { return resolver_; }
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SymbolSupplier* supplier() { return supplier_; }
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protected:
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SymbolSupplier* supplier_;
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SourceLineResolverInterface* resolver_;
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// A list of modules known to have symbols missing. This helps avoid
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// repeated lookups for the missing symbols within one minidump.
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std::set<string> no_symbol_modules_;
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};
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} // namespace google_breakpad
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#endif // GOOGLE_BREAKPAD_PROCESSOR_STACK_FRAME_SYMBOLIZER_H__
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128
src/processor/stack_frame_symbolizer.cc
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128
src/processor/stack_frame_symbolizer.cc
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@ -0,0 +1,128 @@
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// Copyright (c) 2012 Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Implementation of StackFrameSymbolizer, which encapsulates the logic of how
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// SourceLineResolverInterface interacts with SymbolSupplier to fill source
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// line information in a stack frame, and also looks up WindowsFrameInfo or
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// CFIFrameInfo for a stack frame.
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#include "google_breakpad/processor/stack_frame_symbolizer.h"
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#include <assert.h>
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#include "google_breakpad/processor/code_module.h"
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#include "google_breakpad/processor/code_modules.h"
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#include "google_breakpad/processor/source_line_resolver_interface.h"
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#include "google_breakpad/processor/stack_frame.h"
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#include "google_breakpad/processor/symbol_supplier.h"
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#include "google_breakpad/processor/system_info.h"
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#include "processor/linked_ptr.h"
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#include "processor/logging.h"
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#include "processor/scoped_ptr.h"
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namespace google_breakpad {
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StackFrameSymbolizer::StackFrameSymbolizer(
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SymbolSupplier* supplier,
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SourceLineResolverInterface* resolver) : supplier_(supplier),
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resolver_(resolver) { }
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StackFrameSymbolizer::SymbolizerResult StackFrameSymbolizer::FillSourceLineInfo(
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const CodeModules* modules,
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const SystemInfo* system_info,
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StackFrame* frame) {
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assert(frame);
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if (!modules) return ERROR;
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const CodeModule* module = modules->GetModuleForAddress(frame->instruction);
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if (!module) return ERROR;
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frame->module = module;
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if (!resolver_) return ERROR; // no resolver.
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// If module is known to have missing symbol file, return.
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if (no_symbol_modules_.find(module->code_file()) !=
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no_symbol_modules_.end()) {
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return ERROR;
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}
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// If module is already loaded, go ahead to fill source line info and return.
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if (resolver_->HasModule(frame->module)) {
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resolver_->FillSourceLineInfo(frame);
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return NO_ERROR;
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}
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// Module needs to fetch symbol file. First check to see if supplier exists.
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if (!supplier_) {
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return ERROR;
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}
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// Start fetching symbol from supplier.
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string symbol_file;
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char* symbol_data = NULL;
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SymbolSupplier::SymbolResult symbol_result = supplier_->GetCStringSymbolData(
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module, system_info, &symbol_file, &symbol_data);
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switch (symbol_result) {
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case SymbolSupplier::FOUND: {
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bool load_success = resolver_->LoadModuleUsingMemoryBuffer(frame->module,
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symbol_data);
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if (resolver_->ShouldDeleteMemoryBufferAfterLoadModule()) {
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supplier_->FreeSymbolData(module);
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}
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if (load_success) {
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resolver_->FillSourceLineInfo(frame);
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return NO_ERROR;
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} else {
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BPLOG(ERROR) << "Failed to load symbol file in resolver.";
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no_symbol_modules_.insert(module->code_file());
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return ERROR;
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}
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}
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case SymbolSupplier::NOT_FOUND:
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no_symbol_modules_.insert(module->code_file());
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return ERROR;
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case SymbolSupplier::INTERRUPT:
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return INTERRUPT;
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}
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}
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WindowsFrameInfo* StackFrameSymbolizer::FindWindowsFrameInfo(
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const StackFrame* frame) {
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return resolver_ ? resolver_->FindWindowsFrameInfo(frame) : NULL;
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}
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CFIFrameInfo* StackFrameSymbolizer::FindCFIFrameInfo(
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const StackFrame* frame) {
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return resolver_ ? resolver_->FindCFIFrameInfo(frame) : NULL;
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}
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} // namespace google_breakpad
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