From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- .../src/processor/module_serializer.cc | 207 +++++++++++++++++++++ 1 file changed, 207 insertions(+) create mode 100644 toolkit/crashreporter/google-breakpad/src/processor/module_serializer.cc (limited to 'toolkit/crashreporter/google-breakpad/src/processor/module_serializer.cc') diff --git a/toolkit/crashreporter/google-breakpad/src/processor/module_serializer.cc b/toolkit/crashreporter/google-breakpad/src/processor/module_serializer.cc new file mode 100644 index 0000000000..6ac60c1fcf --- /dev/null +++ b/toolkit/crashreporter/google-breakpad/src/processor/module_serializer.cc @@ -0,0 +1,207 @@ +// 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. +// +// module_serializer.cc: ModuleSerializer implementation. +// +// See module_serializer.h for documentation. +// +// Author: Siyang Xie (lambxsy@google.com) + +#include "processor/module_serializer.h" + +#include +#include + +#include "processor/basic_code_module.h" +#include "processor/logging.h" + +namespace google_breakpad { + +// Definition of static member variable in SimplerSerializer, which +// is declared in file "simple_serializer-inl.h" +RangeMapSerializer< MemAddr, linked_ptr > +SimpleSerializer::range_map_serializer_; + +size_t ModuleSerializer::SizeOf(const BasicSourceLineResolver::Module &module) { + size_t total_size_alloc_ = 0; + + // Size of the "is_corrupt" flag. + total_size_alloc_ += SimpleSerializer::SizeOf(module.is_corrupt_); + + // Compute memory size for each map component in Module class. + int map_index = 0; + map_sizes_[map_index++] = files_serializer_.SizeOf(module.files_); + map_sizes_[map_index++] = functions_serializer_.SizeOf(module.functions_); + map_sizes_[map_index++] = pubsym_serializer_.SizeOf(module.public_symbols_); + for (int i = 0; i < WindowsFrameInfo::STACK_INFO_LAST; ++i) + map_sizes_[map_index++] = + wfi_serializer_.SizeOf(&(module.windows_frame_info_[i])); + map_sizes_[map_index++] = cfi_init_rules_serializer_.SizeOf( + module.cfi_initial_rules_); + map_sizes_[map_index++] = cfi_delta_rules_serializer_.SizeOf( + module.cfi_delta_rules_); + + // Header size. + total_size_alloc_ += kNumberMaps_ * sizeof(uint32_t); + + for (int i = 0; i < kNumberMaps_; ++i) { + total_size_alloc_ += map_sizes_[i]; + } + + // Extra one byte for null terminator for C-string copy safety. + total_size_alloc_ += SimpleSerializer::SizeOf(0); + + return total_size_alloc_; +} + +char *ModuleSerializer::Write(const BasicSourceLineResolver::Module &module, + char *dest) { + // Write the is_corrupt flag. + dest = SimpleSerializer::Write(module.is_corrupt_, dest); + // Write header. + memcpy(dest, map_sizes_, kNumberMaps_ * sizeof(uint32_t)); + dest += kNumberMaps_ * sizeof(uint32_t); + // Write each map. + dest = files_serializer_.Write(module.files_, dest); + dest = functions_serializer_.Write(module.functions_, dest); + dest = pubsym_serializer_.Write(module.public_symbols_, dest); + for (int i = 0; i < WindowsFrameInfo::STACK_INFO_LAST; ++i) + dest = wfi_serializer_.Write(&(module.windows_frame_info_[i]), dest); + dest = cfi_init_rules_serializer_.Write(module.cfi_initial_rules_, dest); + dest = cfi_delta_rules_serializer_.Write(module.cfi_delta_rules_, dest); + // Write a null terminator. + dest = SimpleSerializer::Write(0, dest); + return dest; +} + +char* ModuleSerializer::Serialize( + const BasicSourceLineResolver::Module &module, unsigned int *size) { + // Compute size of memory to allocate. + unsigned int size_to_alloc = SizeOf(module); + + // Allocate memory for serialized data. + char *serialized_data = new char[size_to_alloc]; + if (!serialized_data) { + BPLOG(ERROR) << "ModuleSerializer: memory allocation failed, " + << "size to alloc: " << size_to_alloc; + if (size) *size = 0; + return NULL; + } + + // Write serialized data to allocated memory chunk. + char *end_address = Write(module, serialized_data); + // Verify the allocated memory size is equal to the size of data been written. + unsigned int size_written = + static_cast(end_address - serialized_data); + if (size_to_alloc != size_written) { + BPLOG(ERROR) << "size_to_alloc differs from size_written: " + << size_to_alloc << " vs " << size_written; + } + + // Set size and return the start address of memory chunk. + if (size) + *size = size_to_alloc; + return serialized_data; +} + +bool ModuleSerializer::SerializeModuleAndLoadIntoFastResolver( + const BasicSourceLineResolver::ModuleMap::const_iterator &iter, + FastSourceLineResolver *fast_resolver) { + BPLOG(INFO) << "Converting symbol " << iter->first.c_str(); + + // Cast SourceLineResolverBase::Module* to BasicSourceLineResolver::Module*. + BasicSourceLineResolver::Module* basic_module = + dynamic_cast(iter->second); + + unsigned int size = 0; + scoped_array symbol_data(Serialize(*basic_module, &size)); + if (!symbol_data.get()) { + BPLOG(ERROR) << "Serialization failed for module: " << basic_module->name_; + return false; + } + BPLOG(INFO) << "Serialized Symbol Size " << size; + + // Copy the data into string. + // Must pass string to LoadModuleUsingMapBuffer(), instead of passing char* to + // LoadModuleUsingMemoryBuffer(), becaused of data ownership/lifetime issue. + string symbol_data_string(symbol_data.get(), size); + symbol_data.reset(); + + scoped_ptr code_module( + new BasicCodeModule(0, 0, iter->first, "", "", "", "")); + + return fast_resolver->LoadModuleUsingMapBuffer(code_module.get(), + symbol_data_string); +} + +void ModuleSerializer::ConvertAllModules( + const BasicSourceLineResolver *basic_resolver, + FastSourceLineResolver *fast_resolver) { + // Check for NULL pointer. + if (!basic_resolver || !fast_resolver) + return; + + // Traverse module list in basic resolver. + BasicSourceLineResolver::ModuleMap::const_iterator iter; + iter = basic_resolver->modules_->begin(); + for (; iter != basic_resolver->modules_->end(); ++iter) + SerializeModuleAndLoadIntoFastResolver(iter, fast_resolver); +} + +bool ModuleSerializer::ConvertOneModule( + const string &moduleid, + const BasicSourceLineResolver *basic_resolver, + FastSourceLineResolver *fast_resolver) { + // Check for NULL pointer. + if (!basic_resolver || !fast_resolver) + return false; + + BasicSourceLineResolver::ModuleMap::const_iterator iter; + iter = basic_resolver->modules_->find(moduleid); + if (iter == basic_resolver->modules_->end()) + return false; + + return SerializeModuleAndLoadIntoFastResolver(iter, fast_resolver); +} + +char* ModuleSerializer::SerializeSymbolFileData( + const string &symbol_data, unsigned int *size) { + scoped_ptr module( + new BasicSourceLineResolver::Module("no name")); + scoped_array buffer(new char[symbol_data.size() + 1]); + memcpy(buffer.get(), symbol_data.c_str(), symbol_data.size()); + buffer.get()[symbol_data.size()] = '\0'; + if (!module->LoadMapFromMemory(buffer.get(), symbol_data.size() + 1)) { + return NULL; + } + buffer.reset(NULL); + return Serialize(*(module.get()), size); +} + +} // namespace google_breakpad -- cgit v1.2.3