Add missing module_serializer.h and module_serializer.cc for class ModuleSerializer.
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@720 4c0a9323-5329-0410-9bdc-e9ce6186880e
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SiyangXie@gmail.com
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41f998fe5a
commit
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3 changed files with 325 additions and 3 deletions
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@ -135,14 +135,14 @@ class FastSourceLineResolver::Module: public SourceLineResolverBase::Module {
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// returned CFIFrameInfo object.
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virtual CFIFrameInfo *FindCFIFrameInfo(const StackFrame *frame) const;
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// Number of serialized map components of Module.
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static const int kNumberMaps_ = 5 + WindowsFrameInfo::STACK_INFO_LAST;
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private:
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friend class FastSourceLineResolver;
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friend class ModuleComparer;
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typedef StaticMap<int, char> FileMap;
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// Number of serialized map components of Module.
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static const int kNumberMaps_ = 5 + WindowsFrameInfo::STACK_INFO_LAST;
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string name_;
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StaticMap<int, char> files_;
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StaticRangeMap<MemAddr, Function> functions_;
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199
src/processor/module_serializer.cc
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199
src/processor/module_serializer.cc
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@ -0,0 +1,199 @@
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// Copyright (c) 2010, 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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//
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// module_serializer.cc: ModuleSerializer implementation.
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//
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// See module_serializer.h for documentation.
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//
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// Author: Siyang Xie (lambxsy@google.com)
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#include "processor/module_serializer.h"
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#include <map>
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#include <string>
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#include "processor/basic_code_module.h"
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#include "processor/logging.h"
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namespace google_breakpad {
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// Definition of static member variable in SimplerSerializer<Funcion>, which
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// is declared in file "simple_serializer-inl.h"
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RangeMapSerializer< MemAddr, linked_ptr<BasicSourceLineResolver::Line> >
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SimpleSerializer<BasicSourceLineResolver::Function>::range_map_serializer_;
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size_t ModuleSerializer::SizeOf(const BasicSourceLineResolver::Module &module) {
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size_t total_size_alloc_ = 0;
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// Compute memory size for each map component in Module class.
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int map_index = 0;
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map_sizes_[map_index++] = files_serializer_.SizeOf(module.files_);
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map_sizes_[map_index++] = functions_serializer_.SizeOf(module.functions_);
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map_sizes_[map_index++] = pubsym_serializer_.SizeOf(module.public_symbols_);
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for (int i = 0; i < WindowsFrameInfo::STACK_INFO_LAST; ++i)
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map_sizes_[map_index++] =
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wfi_serializer_.SizeOf(&(module.windows_frame_info_[i]));
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map_sizes_[map_index++] = cfi_init_rules_serializer_.SizeOf(
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module.cfi_initial_rules_);
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map_sizes_[map_index++] = cfi_delta_rules_serializer_.SizeOf(
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module.cfi_delta_rules_);
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// Header size.
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total_size_alloc_ = kNumberMaps_ * sizeof(u_int32_t);
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for (int i = 0; i < kNumberMaps_; ++i)
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total_size_alloc_ += map_sizes_[i];
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// Extra one byte for null terminator for C-string copy safety.
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++total_size_alloc_;
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return total_size_alloc_;
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}
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char *ModuleSerializer::Write(const BasicSourceLineResolver::Module &module,
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char *dest) {
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// Write header.
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memcpy(dest, map_sizes_, kNumberMaps_ * sizeof(u_int32_t));
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dest += kNumberMaps_ * sizeof(u_int32_t);
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// Write each map.
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dest = files_serializer_.Write(module.files_, dest);
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dest = functions_serializer_.Write(module.functions_, dest);
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dest = pubsym_serializer_.Write(module.public_symbols_, dest);
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for (int i = 0; i < WindowsFrameInfo::STACK_INFO_LAST; ++i)
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dest = wfi_serializer_.Write(&(module.windows_frame_info_[i]), dest);
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dest = cfi_init_rules_serializer_.Write(module.cfi_initial_rules_, dest);
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dest = cfi_delta_rules_serializer_.Write(module.cfi_delta_rules_, dest);
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// Write a null terminator.
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dest = SimpleSerializer<char>::Write(0, dest);
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return dest;
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}
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char* ModuleSerializer::Serialize(
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const BasicSourceLineResolver::Module &module, unsigned int *size) {
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// Compute size of memory to allocate.
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unsigned int size_to_alloc = SizeOf(module);
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// Allocate memory for serialized data.
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char *serialized_data = reinterpret_cast<char*>(operator new(size_to_alloc));
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if (!serialized_data) {
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BPLOG(ERROR) << "ModuleSerializer: memory allocation failed, "
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<< "size to alloc: " << size_to_alloc;
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if (size) *size = 0;
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return NULL;
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}
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// Write serialized data to allocated memory chunk.
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char *end_address = Write(module, serialized_data);
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// Verify the allocated memory size is equal to the size of data been written.
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unsigned int size_written =
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static_cast<unsigned int>(end_address - serialized_data);
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if (size_to_alloc != size_written) {
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BPLOG(ERROR) << "size_to_alloc differs from size_written: "
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<< size_to_alloc << " vs " << size_written;
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}
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// Set size and return the start address of memory chunk.
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if (size)
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*size = size_to_alloc;
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return serialized_data;
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}
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bool ModuleSerializer::SerializeModuleAndLoadIntoFastResolver(
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const BasicSourceLineResolver::ModuleMap::const_iterator &iter,
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FastSourceLineResolver *fast_resolver) {
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BPLOG(INFO) << "Converting symbol " << iter->first.c_str();
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// Cast SourceLineResolverBase::Module* to BasicSourceLineResolver::Module*.
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BasicSourceLineResolver::Module* basic_module =
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dynamic_cast<BasicSourceLineResolver::Module*>(iter->second);
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unsigned int size = 0;
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scoped_ptr<char> symbol_data(Serialize(*basic_module, &size));
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if (!symbol_data.get()) {
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BPLOG(ERROR) << "Serialization failed for module: " << basic_module->name_;
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return false;
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}
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BPLOG(INFO) << "Serialized Symbol Size " << size;
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// Copy the data into string.
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// Must pass string to LoadModuleUsingMapBuffer(), instead of passing char* to
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// LoadModuleUsingMemoryBuffer(), becaused of data ownership/lifetime issue.
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string symbol_data_string(symbol_data.get(), size);
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symbol_data.reset();
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scoped_ptr<CodeModule> code_module(
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new BasicCodeModule(0, 0, iter->first, "", "", "", ""));
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return fast_resolver->LoadModuleUsingMapBuffer(code_module.get(),
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symbol_data_string);
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}
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void ModuleSerializer::ConvertAllModules(
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const BasicSourceLineResolver *basic_resolver,
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FastSourceLineResolver *fast_resolver) {
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// Check for NULL pointer.
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if (!basic_resolver || !fast_resolver)
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return;
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// Traverse module list in basic resolver.
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BasicSourceLineResolver::ModuleMap::const_iterator iter;
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iter = basic_resolver->modules_->begin();
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for (; iter != basic_resolver->modules_->end(); ++iter)
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SerializeModuleAndLoadIntoFastResolver(iter, fast_resolver);
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}
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bool ModuleSerializer::ConvertOneModule(
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const string &moduleid,
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const BasicSourceLineResolver *basic_resolver,
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FastSourceLineResolver *fast_resolver) {
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// Check for NULL pointer.
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if (!basic_resolver || !fast_resolver)
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return false;
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BasicSourceLineResolver::ModuleMap::const_iterator iter;
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iter = basic_resolver->modules_->find(moduleid);
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if (iter == basic_resolver->modules_->end())
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return false;
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return SerializeModuleAndLoadIntoFastResolver(iter, fast_resolver);
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}
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char* ModuleSerializer::SerializeSymbolFileData(
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const string &symbol_data, unsigned int *size) {
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scoped_ptr<BasicSourceLineResolver::Module> module(
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new BasicSourceLineResolver::Module("no name"));
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scoped_array<char> buffer(new char[symbol_data.size() + 1]);
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strcpy(buffer.get(), symbol_data.c_str());
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if (!module->LoadMapFromMemory(buffer.get())) {
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return NULL;
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}
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return Serialize(*(module.get()), size);
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}
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} // namespace google_breakpad
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123
src/processor/module_serializer.h
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123
src/processor/module_serializer.h
Normal file
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@ -0,0 +1,123 @@
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// Copyright (c) 2010, 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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//
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// module_serializer.h: ModuleSerializer serializes a loaded symbol,
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// i.e., a loaded BasicSouceLineResolver::Module instance, into a memory
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// chunk of data. The serialized data can be read and loaded by
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// FastSourceLineResolver without CPU & memory-intensive parsing.
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//
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// Author: Siyang Xie (lambxsy@google.com)
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#ifndef PROCESSOR_MODULE_SERIALIZER_H__
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#define PROCESSOR_MODULE_SERIALIZER_H__
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#include <map>
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#include <string>
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#include "google_breakpad/processor/basic_source_line_resolver.h"
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#include "google_breakpad/processor/fast_source_line_resolver.h"
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#include "processor/basic_source_line_resolver_types.h"
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#include "processor/fast_source_line_resolver_types.h"
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#include "processor/linked_ptr.h"
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#include "processor/map_serializers-inl.h"
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#include "processor/simple_serializer-inl.h"
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#include "processor/windows_frame_info.h"
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namespace google_breakpad {
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// ModuleSerializer serializes a loaded BasicSourceLineResolver::Module into a
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// chunk of memory data. ModuleSerializer also provides interface to compute
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// memory size of the serialized data, write serialized data directly into
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// memory, convert ASCII format symbol data into serialized binary data, and
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// convert loaded BasicSourceLineResolver::Module into
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// FastSourceLineResolver::Module.
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class ModuleSerializer {
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public:
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// Compute the size of memory required to serialize a module. Return the
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// total size needed for serialization.
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size_t SizeOf(const BasicSourceLineResolver::Module &module);
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// Write a module into an allocated memory chunk with required size.
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// Return the "end" of data, i.e., the address after the final byte of data.
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char* Write(const BasicSourceLineResolver::Module &module, char *dest);
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// Serializes a loaded Module object into a chunk of memory data and returns
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// the address of memory chunk. If size != NULL, *size is set to the memory
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// size allocated for the serialized data.
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char* Serialize(const BasicSourceLineResolver::Module &module,
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unsigned int *size = NULL);
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// Given the string format symbol_data, produces a chunk of serialized data.
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char* SerializeSymbolFileData(const string &symbol_data,
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unsigned int *size = NULL);
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// Serializes one loaded module with given moduleid in the basic source line
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// resolver, and loads the serialized data into the fast source line resolver.
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// Return false if the basic source line doesn't have a module with the given
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// moduleid.
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bool ConvertOneModule(const string &moduleid,
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const BasicSourceLineResolver *basic_resolver,
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FastSourceLineResolver *fast_resolver);
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// Serializes all the loaded modules in a basic source line resolver, and
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// loads the serialized data into a fast source line resolver.
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void ConvertAllModules(const BasicSourceLineResolver *basic_resolver,
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FastSourceLineResolver *fast_resolver);
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private:
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// Convenient type names.
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typedef BasicSourceLineResolver::Line Line;
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typedef BasicSourceLineResolver::Function Function;
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typedef BasicSourceLineResolver::PublicSymbol PublicSymbol;
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// Internal implementation for ConvertOneModule and ConvertAllModules methods.
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bool SerializeModuleAndLoadIntoFastResolver(
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const BasicSourceLineResolver::ModuleMap::const_iterator &iter,
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FastSourceLineResolver *fast_resolver);
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// Number of Maps that Module class contains.
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static const u_int32_t kNumberMaps_ =
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FastSourceLineResolver::Module::kNumberMaps_;
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// Memory sizes required to serialize map components in Module.
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u_int32_t map_sizes_[kNumberMaps_];
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// Serializers for each individual map component in Module class.
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StdMapSerializer<int, string> files_serializer_;
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RangeMapSerializer<MemAddr, linked_ptr<Function> > functions_serializer_;
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AddressMapSerializer<MemAddr, linked_ptr<PublicSymbol> > pubsym_serializer_;
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ContainedRangeMapSerializer<MemAddr,
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linked_ptr<WindowsFrameInfo> > wfi_serializer_;
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RangeMapSerializer<MemAddr, string> cfi_init_rules_serializer_;
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StdMapSerializer<MemAddr, string> cfi_delta_rules_serializer_;
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};
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} // namespace google_breakpad
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#endif // PROCESSOR_MODULE_SERIALIZER_H__
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