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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // crash_report.cc : Implementation crash reporting. | |
| 6 #include "chrome_frame/crash_reporting/crash_report.h" | |
| 7 | |
| 8 #include "base/basictypes.h" | |
| 9 #include "base/synchronization/lock.h" | |
| 10 #include "breakpad/src/client/windows/handler/exception_handler.h" | |
| 11 #include "chrome_frame/crash_reporting/crash_metrics.h" | |
| 12 | |
| 13 // TODO(joshia): factor out common code with chrome used for crash reporting | |
| 14 const wchar_t kGoogleUpdatePipeName[] = L"\\\\.\\pipe\\GoogleCrashServices\\"; | |
| 15 | |
| 16 // This lock protects against concurrent access to g_breakpad. | |
| 17 static base::Lock g_breakpad_lock; | |
| 18 static google_breakpad::ExceptionHandler* g_breakpad = NULL; | |
| 19 | |
| 20 // These minidump flag combinations have been tested safe against the | |
| 21 // DbgHelp.dll version that ships with Windows XP SP2. | |
| 22 const MINIDUMP_TYPE kSmallDumpType = static_cast<MINIDUMP_TYPE>( | |
| 23 MiniDumpWithProcessThreadData | // Get PEB and TEB. | |
| 24 MiniDumpWithUnloadedModules); // Get unloaded modules when available. | |
| 25 | |
| 26 const MINIDUMP_TYPE kLargerDumpType = static_cast<MINIDUMP_TYPE>( | |
| 27 MiniDumpWithProcessThreadData | // Get PEB and TEB. | |
| 28 MiniDumpWithUnloadedModules | // Get unloaded modules when available. | |
| 29 MiniDumpWithIndirectlyReferencedMemory); // Get memory referenced by stack. | |
| 30 | |
| 31 // Large dump with all process memory. | |
| 32 const MINIDUMP_TYPE kFullDumpType = static_cast<MINIDUMP_TYPE>( | |
| 33 MiniDumpWithFullMemory | // Full memory from process. | |
| 34 MiniDumpWithProcessThreadData | // Get PEB and TEB. | |
| 35 MiniDumpWithHandleData | // Get all handle information. | |
| 36 MiniDumpWithUnloadedModules); // Get unloaded modules when available. | |
| 37 | |
| 38 #pragma code_seg(push, ".text$va") | |
| 39 static void veh_segment_start() {} | |
| 40 #pragma code_seg(pop) | |
| 41 | |
| 42 #pragma code_seg(push, ".text$vz") | |
| 43 static void veh_segment_end() {} | |
| 44 #pragma code_seg(pop) | |
| 45 | |
| 46 // Place code in .text$veh_m. | |
| 47 #pragma code_seg(push, ".text$vm") | |
| 48 #include "chrome_frame/crash_reporting/vectored_handler-impl.h" | |
| 49 | |
| 50 class CrashHandler { | |
| 51 public: | |
| 52 CrashHandler() : veh_id_(NULL), handler_(&crash_api_) {} | |
| 53 | |
| 54 // Note that breakpad_lock is used to protect accesses to breakpad and must | |
| 55 // be held when Init() is called. | |
| 56 bool Init(google_breakpad::ExceptionHandler* breakpad, | |
| 57 base::Lock* breakpad_lock); | |
| 58 | |
| 59 void Shutdown(); | |
| 60 private: | |
| 61 VectoredHandlerT<CrashHandlerTraits> handler_; | |
| 62 CrashHandlerTraits crash_api_; | |
| 63 void* veh_id_; | |
| 64 | |
| 65 static LONG WINAPI VectoredHandlerEntryPoint(EXCEPTION_POINTERS* exptrs); | |
| 66 }; | |
| 67 | |
| 68 static CrashHandler g_crash_handler; | |
| 69 | |
| 70 // Turn off FPO optimization, so ::RtlCaptureStackBackTrace returns sane result. | |
| 71 #pragma optimize("y", off) | |
| 72 LONG WINAPI CrashHandler::VectoredHandlerEntryPoint( | |
| 73 EXCEPTION_POINTERS* exptrs) { | |
| 74 return g_crash_handler.handler_.Handler(exptrs); | |
| 75 } | |
| 76 #pragma optimize("y", on) | |
| 77 | |
| 78 #pragma code_seg(pop) | |
| 79 | |
| 80 bool CrashHandler::Init(google_breakpad::ExceptionHandler* breakpad, | |
| 81 base::Lock* breakpad_lock) { | |
| 82 DCHECK(breakpad); | |
| 83 DCHECK(breakpad_lock); | |
| 84 breakpad_lock->AssertAcquired(); | |
| 85 | |
| 86 if (veh_id_) | |
| 87 return true; | |
| 88 | |
| 89 crash_api_.Init(&veh_segment_start, &veh_segment_end, | |
| 90 &WriteMinidumpForException); | |
| 91 | |
| 92 void* id = ::AddVectoredExceptionHandler(FALSE, &VectoredHandlerEntryPoint); | |
| 93 if (id != NULL) { | |
| 94 veh_id_ = id; | |
| 95 return true; | |
| 96 } else { | |
| 97 crash_api_.Shutdown(); | |
| 98 return false; | |
| 99 } | |
| 100 } | |
| 101 | |
| 102 void CrashHandler::Shutdown() { | |
| 103 if (veh_id_) { | |
| 104 ::RemoveVectoredExceptionHandler(veh_id_); | |
| 105 veh_id_ = NULL; | |
| 106 } | |
| 107 | |
| 108 crash_api_.Shutdown(); | |
| 109 } | |
| 110 | |
| 111 std::wstring GetCrashServerPipeName(const std::wstring& user_sid) { | |
| 112 std::wstring pipe_name = kGoogleUpdatePipeName; | |
| 113 pipe_name += user_sid; | |
| 114 return pipe_name; | |
| 115 } | |
| 116 | |
| 117 bool InitializeVectoredCrashReportingWithPipeName( | |
| 118 bool full_dump, | |
| 119 const wchar_t* pipe_name, | |
| 120 const std::wstring& dump_path, | |
| 121 google_breakpad::CustomClientInfo* client_info) { | |
| 122 base::AutoLock lock(g_breakpad_lock); | |
| 123 if (g_breakpad) | |
| 124 return true; | |
| 125 | |
| 126 if (dump_path.empty()) { | |
| 127 return false; | |
| 128 } | |
| 129 | |
| 130 // TODO(siggi): Consider switching to kSmallerDumpType post-beta. | |
| 131 MINIDUMP_TYPE dump_type = full_dump ? kFullDumpType : kLargerDumpType; | |
| 132 g_breakpad = new google_breakpad::ExceptionHandler( | |
| 133 dump_path, NULL, NULL, NULL, | |
| 134 google_breakpad::ExceptionHandler::HANDLER_INVALID_PARAMETER | | |
| 135 google_breakpad::ExceptionHandler::HANDLER_PURECALL, dump_type, | |
| 136 pipe_name, client_info); | |
| 137 | |
| 138 if (!g_breakpad) | |
| 139 return false; | |
| 140 | |
| 141 if (!g_crash_handler.Init(g_breakpad, &g_breakpad_lock)) { | |
| 142 delete g_breakpad; | |
| 143 g_breakpad = NULL; | |
| 144 return false; | |
| 145 } | |
| 146 | |
| 147 return true; | |
| 148 } | |
| 149 | |
| 150 bool InitializeVectoredCrashReporting( | |
| 151 bool full_dump, | |
| 152 const wchar_t* user_sid, | |
| 153 const std::wstring& dump_path, | |
| 154 google_breakpad::CustomClientInfo* client_info) { | |
| 155 DCHECK(user_sid); | |
| 156 DCHECK(client_info); | |
| 157 | |
| 158 std::wstring pipe_name = GetCrashServerPipeName(user_sid); | |
| 159 | |
| 160 return InitializeVectoredCrashReportingWithPipeName(full_dump, | |
| 161 pipe_name.c_str(), | |
| 162 dump_path, | |
| 163 client_info); | |
| 164 } | |
| 165 | |
| 166 bool ShutdownVectoredCrashReporting() { | |
| 167 g_crash_handler.Shutdown(); | |
| 168 base::AutoLock lock(g_breakpad_lock); | |
| 169 delete g_breakpad; | |
| 170 g_breakpad = NULL; | |
| 171 return true; | |
| 172 } | |
| 173 | |
| 174 bool WriteMinidumpForException(EXCEPTION_POINTERS* p) { | |
| 175 base::AutoLock lock(g_breakpad_lock); | |
| 176 CrashMetricsReporter::GetInstance()->IncrementMetric( | |
| 177 CrashMetricsReporter::CRASH_COUNT); | |
| 178 bool success = false; | |
| 179 if (g_breakpad) { | |
| 180 success = g_breakpad->WriteMinidumpForException(p); | |
| 181 } | |
| 182 return success; | |
| 183 } | |
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