| // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // crash_report.cc : Implementation crash reporting. |
| #include "chrome_frame/crash_reporting/crash_report.h" |
| |
| #include "base/basictypes.h" |
| #include "base/synchronization/lock.h" |
| #include "breakpad/src/client/windows/handler/exception_handler.h" |
| #include "chrome_frame/crash_reporting/crash_metrics.h" |
| |
| // TODO(joshia): factor out common code with chrome used for crash reporting |
| const wchar_t kGoogleUpdatePipeName[] = L"\\\\.\\pipe\\GoogleCrashServices\\"; |
| |
| // This lock protects against concurrent access to g_breakpad. |
| static base::Lock g_breakpad_lock; |
| static google_breakpad::ExceptionHandler* g_breakpad = NULL; |
| |
| // These minidump flag combinations have been tested safe against the |
| // DbgHelp.dll version that ships with Windows XP SP2. |
| const MINIDUMP_TYPE kSmallDumpType = static_cast<MINIDUMP_TYPE>( |
| MiniDumpWithProcessThreadData | // Get PEB and TEB. |
| MiniDumpWithUnloadedModules); // Get unloaded modules when available. |
| |
| const MINIDUMP_TYPE kLargerDumpType = static_cast<MINIDUMP_TYPE>( |
| MiniDumpWithProcessThreadData | // Get PEB and TEB. |
| MiniDumpWithUnloadedModules | // Get unloaded modules when available. |
| MiniDumpWithIndirectlyReferencedMemory); // Get memory referenced by stack. |
| |
| // Large dump with all process memory. |
| const MINIDUMP_TYPE kFullDumpType = static_cast<MINIDUMP_TYPE>( |
| MiniDumpWithFullMemory | // Full memory from process. |
| MiniDumpWithProcessThreadData | // Get PEB and TEB. |
| MiniDumpWithHandleData | // Get all handle information. |
| MiniDumpWithUnloadedModules); // Get unloaded modules when available. |
| |
| #pragma code_seg(push, ".text$va") |
| static void veh_segment_start() {} |
| #pragma code_seg(pop) |
| |
| #pragma code_seg(push, ".text$vz") |
| static void veh_segment_end() {} |
| #pragma code_seg(pop) |
| |
| // Place code in .text$veh_m. |
| #pragma code_seg(push, ".text$vm") |
| #include "chrome_frame/crash_reporting/vectored_handler-impl.h" |
| |
| class CrashHandler { |
| public: |
| CrashHandler() : veh_id_(NULL), handler_(&crash_api_) {} |
| |
| // Note that breakpad_lock is used to protect accesses to breakpad and must |
| // be held when Init() is called. |
| bool Init(google_breakpad::ExceptionHandler* breakpad, |
| base::Lock* breakpad_lock); |
| |
| void Shutdown(); |
| private: |
| VectoredHandlerT<CrashHandlerTraits> handler_; |
| CrashHandlerTraits crash_api_; |
| void* veh_id_; |
| |
| static LONG WINAPI VectoredHandlerEntryPoint(EXCEPTION_POINTERS* exptrs); |
| }; |
| |
| static CrashHandler g_crash_handler; |
| |
| // Turn off FPO optimization, so ::RtlCaptureStackBackTrace returns sane result. |
| #pragma optimize("y", off) |
| LONG WINAPI CrashHandler::VectoredHandlerEntryPoint( |
| EXCEPTION_POINTERS* exptrs) { |
| return g_crash_handler.handler_.Handler(exptrs); |
| } |
| #pragma optimize("y", on) |
| |
| #pragma code_seg(pop) |
| |
| bool CrashHandler::Init(google_breakpad::ExceptionHandler* breakpad, |
| base::Lock* breakpad_lock) { |
| DCHECK(breakpad); |
| DCHECK(breakpad_lock); |
| breakpad_lock->AssertAcquired(); |
| |
| if (veh_id_) |
| return true; |
| |
| crash_api_.Init(&veh_segment_start, &veh_segment_end, |
| &WriteMinidumpForException); |
| |
| void* id = ::AddVectoredExceptionHandler(FALSE, &VectoredHandlerEntryPoint); |
| if (id != NULL) { |
| veh_id_ = id; |
| return true; |
| } else { |
| crash_api_.Shutdown(); |
| return false; |
| } |
| } |
| |
| void CrashHandler::Shutdown() { |
| if (veh_id_) { |
| ::RemoveVectoredExceptionHandler(veh_id_); |
| veh_id_ = NULL; |
| } |
| |
| crash_api_.Shutdown(); |
| } |
| |
| std::wstring GetCrashServerPipeName(const std::wstring& user_sid) { |
| std::wstring pipe_name = kGoogleUpdatePipeName; |
| pipe_name += user_sid; |
| return pipe_name; |
| } |
| |
| bool InitializeVectoredCrashReportingWithPipeName( |
| bool full_dump, |
| const wchar_t* pipe_name, |
| const std::wstring& dump_path, |
| google_breakpad::CustomClientInfo* client_info) { |
| base::AutoLock lock(g_breakpad_lock); |
| if (g_breakpad) |
| return true; |
| |
| if (dump_path.empty()) { |
| return false; |
| } |
| |
| // TODO(siggi): Consider switching to kSmallerDumpType post-beta. |
| MINIDUMP_TYPE dump_type = full_dump ? kFullDumpType : kLargerDumpType; |
| g_breakpad = new google_breakpad::ExceptionHandler( |
| dump_path, NULL, NULL, NULL, |
| google_breakpad::ExceptionHandler::HANDLER_INVALID_PARAMETER | |
| google_breakpad::ExceptionHandler::HANDLER_PURECALL, dump_type, |
| pipe_name, client_info); |
| |
| if (!g_breakpad) |
| return false; |
| |
| if (!g_crash_handler.Init(g_breakpad, &g_breakpad_lock)) { |
| delete g_breakpad; |
| g_breakpad = NULL; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool InitializeVectoredCrashReporting( |
| bool full_dump, |
| const wchar_t* user_sid, |
| const std::wstring& dump_path, |
| google_breakpad::CustomClientInfo* client_info) { |
| DCHECK(user_sid); |
| DCHECK(client_info); |
| |
| std::wstring pipe_name = GetCrashServerPipeName(user_sid); |
| |
| return InitializeVectoredCrashReportingWithPipeName(full_dump, |
| pipe_name.c_str(), |
| dump_path, |
| client_info); |
| } |
| |
| bool ShutdownVectoredCrashReporting() { |
| g_crash_handler.Shutdown(); |
| base::AutoLock lock(g_breakpad_lock); |
| delete g_breakpad; |
| g_breakpad = NULL; |
| return true; |
| } |
| |
| bool WriteMinidumpForException(EXCEPTION_POINTERS* p) { |
| base::AutoLock lock(g_breakpad_lock); |
| CrashMetricsReporter::GetInstance()->IncrementMetric( |
| CrashMetricsReporter::CRASH_COUNT); |
| bool success = false; |
| if (g_breakpad) { |
| success = g_breakpad->WriteMinidumpForException(p); |
| } |
| return success; |
| } |