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| 1 // Copyright 2013 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 #include "components/breakpad/app/breakpad_win.h" | |
| 6 | |
| 7 #include <windows.h> | |
| 8 #include <shellapi.h> | |
| 9 #include <tchar.h> | |
| 10 #include <userenv.h> | |
| 11 #include <winnt.h> | |
| 12 | |
| 13 #include <algorithm> | |
| 14 #include <map> | |
| 15 #include <vector> | |
| 16 | |
| 17 #include "base/base_switches.h" | |
| 18 #include "base/basictypes.h" | |
| 19 #include "base/command_line.h" | |
| 20 #include "base/debug/crash_logging.h" | |
| 21 #include "base/debug/dump_without_crashing.h" | |
| 22 #include "base/environment.h" | |
| 23 #include "base/memory/scoped_ptr.h" | |
| 24 #include "base/strings/string16.h" | |
| 25 #include "base/strings/string_split.h" | |
| 26 #include "base/strings/string_util.h" | |
| 27 #include "base/strings/stringprintf.h" | |
| 28 #include "base/strings/utf_string_conversions.h" | |
| 29 #include "base/synchronization/lock.h" | |
| 30 #include "base/win/metro.h" | |
| 31 #include "base/win/pe_image.h" | |
| 32 #include "base/win/registry.h" | |
| 33 #include "base/win/win_util.h" | |
| 34 #include "breakpad/src/client/windows/handler/exception_handler.h" | |
| 35 #include "components/breakpad/app/breakpad_client.h" | |
| 36 #include "components/breakpad/app/crash_keys_win.h" | |
| 37 #include "components/breakpad/app/hard_error_handler_win.h" | |
| 38 #include "content/public/common/result_codes.h" | |
| 39 #include "sandbox/win/src/nt_internals.h" | |
| 40 #include "sandbox/win/src/sidestep/preamble_patcher.h" | |
| 41 | |
| 42 // userenv.dll is required for GetProfileType(). | |
| 43 #pragma comment(lib, "userenv.lib") | |
| 44 | |
| 45 #pragma intrinsic(_AddressOfReturnAddress) | |
| 46 #pragma intrinsic(_ReturnAddress) | |
| 47 | |
| 48 namespace breakpad { | |
| 49 | |
| 50 namespace { | |
| 51 | |
| 52 // Minidump with stacks, PEB, TEB, and unloaded module list. | |
| 53 const MINIDUMP_TYPE kSmallDumpType = static_cast<MINIDUMP_TYPE>( | |
| 54 MiniDumpWithProcessThreadData | // Get PEB and TEB. | |
| 55 MiniDumpWithUnloadedModules); // Get unloaded modules when available. | |
| 56 | |
| 57 // Minidump with all of the above, plus memory referenced from stack. | |
| 58 const MINIDUMP_TYPE kLargerDumpType = static_cast<MINIDUMP_TYPE>( | |
| 59 MiniDumpWithProcessThreadData | // Get PEB and TEB. | |
| 60 MiniDumpWithUnloadedModules | // Get unloaded modules when available. | |
| 61 MiniDumpWithIndirectlyReferencedMemory); // Get memory referenced by stack. | |
| 62 | |
| 63 // Large dump with all process memory. | |
| 64 const MINIDUMP_TYPE kFullDumpType = static_cast<MINIDUMP_TYPE>( | |
| 65 MiniDumpWithFullMemory | // Full memory from process. | |
| 66 MiniDumpWithProcessThreadData | // Get PEB and TEB. | |
| 67 MiniDumpWithHandleData | // Get all handle information. | |
| 68 MiniDumpWithUnloadedModules); // Get unloaded modules when available. | |
| 69 | |
| 70 const char kPipeNameVar[] = "CHROME_BREAKPAD_PIPE_NAME"; | |
| 71 | |
| 72 const wchar_t kGoogleUpdatePipeName[] = L"\\\\.\\pipe\\GoogleCrashServices\\"; | |
| 73 const wchar_t kChromePipeName[] = L"\\\\.\\pipe\\ChromeCrashServices"; | |
| 74 | |
| 75 // This is the well known SID for the system principal. | |
| 76 const wchar_t kSystemPrincipalSid[] =L"S-1-5-18"; | |
| 77 | |
| 78 google_breakpad::ExceptionHandler* g_breakpad = NULL; | |
| 79 google_breakpad::ExceptionHandler* g_dumphandler_no_crash = NULL; | |
| 80 | |
| 81 EXCEPTION_POINTERS g_surrogate_exception_pointers = {0}; | |
| 82 EXCEPTION_RECORD g_surrogate_exception_record = {0}; | |
| 83 CONTEXT g_surrogate_context = {0}; | |
| 84 | |
| 85 typedef NTSTATUS (WINAPI* NtTerminateProcessPtr)(HANDLE ProcessHandle, | |
| 86 NTSTATUS ExitStatus); | |
| 87 char* g_real_terminate_process_stub = NULL; | |
| 88 | |
| 89 } // namespace | |
| 90 | |
| 91 // Dumps the current process memory. | |
| 92 extern "C" void __declspec(dllexport) __cdecl DumpProcess() { | |
| 93 if (g_breakpad) { | |
| 94 g_breakpad->WriteMinidump(); | |
| 95 } | |
| 96 } | |
| 97 | |
| 98 // Used for dumping a process state when there is no crash. | |
| 99 extern "C" void __declspec(dllexport) __cdecl DumpProcessWithoutCrash() { | |
| 100 if (g_dumphandler_no_crash) { | |
| 101 g_dumphandler_no_crash->WriteMinidump(); | |
| 102 } | |
| 103 } | |
| 104 | |
| 105 namespace { | |
| 106 | |
| 107 // We need to prevent ICF from folding DumpForHangDebuggingThread() and | |
| 108 // DumpProcessWithoutCrashThread() together, since that makes them | |
| 109 // indistinguishable in crash dumps. We do this by making the function | |
| 110 // bodies unique, and prevent optimization from shuffling things around. | |
| 111 MSVC_DISABLE_OPTIMIZE() | |
| 112 MSVC_PUSH_DISABLE_WARNING(4748) | |
| 113 | |
| 114 DWORD WINAPI DumpProcessWithoutCrashThread(void*) { | |
| 115 DumpProcessWithoutCrash(); | |
| 116 return 0; | |
| 117 } | |
| 118 | |
| 119 // The following two functions do exactly the same thing as the two above. But | |
| 120 // we want the signatures to be different so that we can easily track them in | |
| 121 // crash reports. | |
| 122 // TODO(yzshen): Remove when enough information is collected and the hang rate | |
| 123 // of pepper/renderer processes is reduced. | |
| 124 DWORD WINAPI DumpForHangDebuggingThread(void*) { | |
| 125 DumpProcessWithoutCrash(); | |
| 126 VLOG(1) << "dumped for hang debugging"; | |
| 127 return 0; | |
| 128 } | |
| 129 | |
| 130 MSVC_POP_WARNING() | |
| 131 MSVC_ENABLE_OPTIMIZE() | |
| 132 | |
| 133 } // namespace | |
| 134 | |
| 135 // Injects a thread into a remote process to dump state when there is no crash. | |
| 136 extern "C" HANDLE __declspec(dllexport) __cdecl | |
| 137 InjectDumpProcessWithoutCrash(HANDLE process) { | |
| 138 return CreateRemoteThread(process, NULL, 0, DumpProcessWithoutCrashThread, | |
| 139 0, 0, NULL); | |
| 140 } | |
| 141 | |
| 142 extern "C" HANDLE __declspec(dllexport) __cdecl | |
| 143 InjectDumpForHangDebugging(HANDLE process) { | |
| 144 return CreateRemoteThread(process, NULL, 0, DumpForHangDebuggingThread, | |
| 145 0, 0, NULL); | |
| 146 } | |
| 147 | |
| 148 // Returns a string containing a list of all modifiers for the loaded profile. | |
| 149 std::wstring GetProfileType() { | |
| 150 std::wstring profile_type; | |
| 151 DWORD profile_bits = 0; | |
| 152 if (::GetProfileType(&profile_bits)) { | |
| 153 static const struct { | |
| 154 DWORD bit; | |
| 155 const wchar_t* name; | |
| 156 } kBitNames[] = { | |
| 157 { PT_MANDATORY, L"mandatory" }, | |
| 158 { PT_ROAMING, L"roaming" }, | |
| 159 { PT_TEMPORARY, L"temporary" }, | |
| 160 }; | |
| 161 for (size_t i = 0; i < arraysize(kBitNames); ++i) { | |
| 162 const DWORD this_bit = kBitNames[i].bit; | |
| 163 if ((profile_bits & this_bit) != 0) { | |
| 164 profile_type.append(kBitNames[i].name); | |
| 165 profile_bits &= ~this_bit; | |
| 166 if (profile_bits != 0) | |
| 167 profile_type.append(L", "); | |
| 168 } | |
| 169 } | |
| 170 } else { | |
| 171 DWORD last_error = ::GetLastError(); | |
| 172 base::SStringPrintf(&profile_type, L"error %u", last_error); | |
| 173 } | |
| 174 return profile_type; | |
| 175 } | |
| 176 | |
| 177 namespace { | |
| 178 | |
| 179 // This callback is used when we want to get a dump without crashing the | |
| 180 // process. | |
| 181 bool DumpDoneCallbackWhenNoCrash(const wchar_t*, const wchar_t*, void*, | |
| 182 EXCEPTION_POINTERS* ex_info, | |
| 183 MDRawAssertionInfo*, bool) { | |
| 184 return true; | |
| 185 } | |
| 186 | |
| 187 // This callback is executed when the browser process has crashed, after | |
| 188 // the crash dump has been created. We need to minimize the amount of work | |
| 189 // done here since we have potentially corrupted process. Our job is to | |
| 190 // spawn another instance of chrome which will show a 'chrome has crashed' | |
| 191 // dialog. This code needs to live in the exe and thus has no access to | |
| 192 // facilities such as the i18n helpers. | |
| 193 bool DumpDoneCallback(const wchar_t*, const wchar_t*, void*, | |
| 194 EXCEPTION_POINTERS* ex_info, | |
| 195 MDRawAssertionInfo*, bool) { | |
| 196 // Check if the exception is one of the kind which would not be solved | |
| 197 // by simply restarting chrome. In this case we show a message box with | |
| 198 // and exit silently. Remember that chrome is in a crashed state so we | |
| 199 // can't show our own UI from this process. | |
| 200 if (HardErrorHandler(ex_info)) | |
| 201 return true; | |
| 202 | |
| 203 if (!GetBreakpadClient()->AboutToRestart()) | |
| 204 return true; | |
| 205 | |
| 206 // Now we just start chrome browser with the same command line. | |
| 207 STARTUPINFOW si = {sizeof(si)}; | |
| 208 PROCESS_INFORMATION pi; | |
| 209 if (::CreateProcessW(NULL, ::GetCommandLineW(), NULL, NULL, FALSE, | |
| 210 CREATE_UNICODE_ENVIRONMENT, NULL, NULL, &si, &pi)) { | |
| 211 ::CloseHandle(pi.hProcess); | |
| 212 ::CloseHandle(pi.hThread); | |
| 213 } | |
| 214 // After this return we will be terminated. The actual return value is | |
| 215 // not used at all. | |
| 216 return true; | |
| 217 } | |
| 218 | |
| 219 // flag to indicate that we are already handling an exception. | |
| 220 volatile LONG handling_exception = 0; | |
| 221 | |
| 222 // This callback is used when there is no crash. Note: Unlike the | |
| 223 // |FilterCallback| below this does not do dupe detection. It is upto the caller | |
| 224 // to implement it. | |
| 225 bool FilterCallbackWhenNoCrash( | |
| 226 void*, EXCEPTION_POINTERS*, MDRawAssertionInfo*) { | |
| 227 GetBreakpadClient()->RecordCrashDumpAttempt(false); | |
| 228 return true; | |
| 229 } | |
| 230 | |
| 231 // This callback is executed when the Chrome process has crashed and *before* | |
| 232 // the crash dump is created. To prevent duplicate crash reports we | |
| 233 // make every thread calling this method, except the very first one, | |
| 234 // go to sleep. | |
| 235 bool FilterCallback(void*, EXCEPTION_POINTERS*, MDRawAssertionInfo*) { | |
| 236 // Capture every thread except the first one in the sleep. We don't | |
| 237 // want multiple threads to concurrently report exceptions. | |
| 238 if (::InterlockedCompareExchange(&handling_exception, 1, 0) == 1) { | |
| 239 ::Sleep(INFINITE); | |
| 240 } | |
| 241 GetBreakpadClient()->RecordCrashDumpAttempt(true); | |
| 242 return true; | |
| 243 } | |
| 244 | |
| 245 // Previous unhandled filter. Will be called if not null when we | |
| 246 // intercept a crash. | |
| 247 LPTOP_LEVEL_EXCEPTION_FILTER previous_filter = NULL; | |
| 248 | |
| 249 // Exception filter used when breakpad is not enabled. We just display | |
| 250 // the "Do you want to restart" message and then we call the previous filter. | |
| 251 long WINAPI ChromeExceptionFilter(EXCEPTION_POINTERS* info) { | |
| 252 DumpDoneCallback(NULL, NULL, NULL, info, NULL, false); | |
| 253 | |
| 254 if (previous_filter) | |
| 255 return previous_filter(info); | |
| 256 | |
| 257 return EXCEPTION_EXECUTE_HANDLER; | |
| 258 } | |
| 259 | |
| 260 // Exception filter for the service process used when breakpad is not enabled. | |
| 261 // We just display the "Do you want to restart" message and then die | |
| 262 // (without calling the previous filter). | |
| 263 long WINAPI ServiceExceptionFilter(EXCEPTION_POINTERS* info) { | |
| 264 DumpDoneCallback(NULL, NULL, NULL, info, NULL, false); | |
| 265 return EXCEPTION_EXECUTE_HANDLER; | |
| 266 } | |
| 267 | |
| 268 } // namespace | |
| 269 | |
| 270 // NOTE: This function is used by SyzyASAN to annotate crash reports. If you | |
| 271 // change the name or signature of this function you will break SyzyASAN | |
| 272 // instrumented releases of Chrome. Please contact syzygy-team@chromium.org | |
| 273 // before doing so! | |
| 274 extern "C" void __declspec(dllexport) __cdecl SetCrashKeyValueImpl( | |
| 275 const wchar_t* key, const wchar_t* value) { | |
| 276 CrashKeysWin* keeper = CrashKeysWin::keeper(); | |
| 277 if (!keeper) | |
| 278 return; | |
| 279 | |
| 280 // TODO(siggi): This doesn't look quite right - there's NULL deref potential | |
| 281 // here, and an implicit std::wstring conversion. Fixme. | |
| 282 keeper->SetCrashKeyValue(key, value); | |
| 283 } | |
| 284 | |
| 285 extern "C" void __declspec(dllexport) __cdecl ClearCrashKeyValueImpl( | |
| 286 const wchar_t* key) { | |
| 287 CrashKeysWin* keeper = CrashKeysWin::keeper(); | |
| 288 if (!keeper) | |
| 289 return; | |
| 290 | |
| 291 // TODO(siggi): This doesn't look quite right - there's NULL deref potential | |
| 292 // here, and an implicit std::wstring conversion. Fixme. | |
| 293 keeper->ClearCrashKeyValue(key); | |
| 294 } | |
| 295 | |
| 296 static bool WrapMessageBoxWithSEH(const wchar_t* text, const wchar_t* caption, | |
| 297 UINT flags, bool* exit_now) { | |
| 298 // We wrap the call to MessageBoxW with a SEH handler because it some | |
| 299 // machines with CursorXP, PeaDict or with FontExplorer installed it crashes | |
| 300 // uncontrollably here. Being this a best effort deal we better go away. | |
| 301 __try { | |
| 302 *exit_now = (IDOK != ::MessageBoxW(NULL, text, caption, flags)); | |
| 303 } __except(EXCEPTION_EXECUTE_HANDLER) { | |
| 304 // Its not safe to continue executing, exit silently here. | |
| 305 ::TerminateProcess(::GetCurrentProcess(), | |
| 306 GetBreakpadClient()->GetResultCodeRespawnFailed()); | |
| 307 } | |
| 308 | |
| 309 return true; | |
| 310 } | |
| 311 | |
| 312 // This function is executed by the child process that DumpDoneCallback() | |
| 313 // spawned and basically just shows the 'chrome has crashed' dialog if | |
| 314 // the CHROME_CRASHED environment variable is present. | |
| 315 bool ShowRestartDialogIfCrashed(bool* exit_now) { | |
| 316 // If we are being launched in metro mode don't try to show the dialog. | |
| 317 if (base::win::IsMetroProcess()) | |
| 318 return false; | |
| 319 | |
| 320 base::string16 message; | |
| 321 base::string16 title; | |
| 322 bool is_rtl_locale; | |
| 323 if (!GetBreakpadClient()->ShouldShowRestartDialog( | |
| 324 &title, &message, &is_rtl_locale)) { | |
| 325 return false; | |
| 326 } | |
| 327 | |
| 328 // If the UI layout is right-to-left, we need to pass the appropriate MB_XXX | |
| 329 // flags so that an RTL message box is displayed. | |
| 330 UINT flags = MB_OKCANCEL | MB_ICONWARNING; | |
| 331 if (is_rtl_locale) | |
| 332 flags |= MB_RIGHT | MB_RTLREADING; | |
| 333 | |
| 334 return WrapMessageBoxWithSEH(message.c_str(), title.c_str(), flags, exit_now); | |
| 335 } | |
| 336 | |
| 337 // Crashes the process after generating a dump for the provided exception. Note | |
| 338 // that the crash reporter should be initialized before calling this function | |
| 339 // for it to do anything. | |
| 340 // NOTE: This function is used by SyzyASAN to invoke a crash. If you change the | |
| 341 // the name or signature of this function you will break SyzyASAN instrumented | |
| 342 // releases of Chrome. Please contact syzygy-team@chromium.org before doing so! | |
| 343 extern "C" int __declspec(dllexport) CrashForException( | |
| 344 EXCEPTION_POINTERS* info) { | |
| 345 if (g_breakpad) { | |
| 346 g_breakpad->WriteMinidumpForException(info); | |
| 347 // Patched stub exists based on conditions (See InitCrashReporter). | |
| 348 // As a side note this function also gets called from | |
| 349 // WindowProcExceptionFilter. | |
| 350 if (g_real_terminate_process_stub == NULL) { | |
| 351 ::TerminateProcess(::GetCurrentProcess(), content::RESULT_CODE_KILLED); | |
| 352 } else { | |
| 353 NtTerminateProcessPtr real_terminate_proc = | |
| 354 reinterpret_cast<NtTerminateProcessPtr>( | |
| 355 static_cast<char*>(g_real_terminate_process_stub)); | |
| 356 real_terminate_proc(::GetCurrentProcess(), content::RESULT_CODE_KILLED); | |
| 357 } | |
| 358 } | |
| 359 return EXCEPTION_CONTINUE_SEARCH; | |
| 360 } | |
| 361 | |
| 362 static NTSTATUS WINAPI HookNtTerminateProcess(HANDLE ProcessHandle, | |
| 363 NTSTATUS ExitStatus) { | |
| 364 if (g_breakpad && | |
| 365 (ProcessHandle == ::GetCurrentProcess() || ProcessHandle == NULL)) { | |
| 366 NT_TIB* tib = reinterpret_cast<NT_TIB*>(NtCurrentTeb()); | |
| 367 void* address_on_stack = _AddressOfReturnAddress(); | |
| 368 if (address_on_stack < tib->StackLimit || | |
| 369 address_on_stack > tib->StackBase) { | |
| 370 g_surrogate_exception_record.ExceptionAddress = _ReturnAddress(); | |
| 371 g_surrogate_exception_record.ExceptionCode = DBG_TERMINATE_PROCESS; | |
| 372 g_surrogate_exception_record.ExceptionFlags = EXCEPTION_NONCONTINUABLE; | |
| 373 CrashForException(&g_surrogate_exception_pointers); | |
| 374 } | |
| 375 } | |
| 376 | |
| 377 NtTerminateProcessPtr real_proc = | |
| 378 reinterpret_cast<NtTerminateProcessPtr>( | |
| 379 static_cast<char*>(g_real_terminate_process_stub)); | |
| 380 return real_proc(ProcessHandle, ExitStatus); | |
| 381 } | |
| 382 | |
| 383 static void InitTerminateProcessHooks() { | |
| 384 NtTerminateProcessPtr terminate_process_func_address = | |
| 385 reinterpret_cast<NtTerminateProcessPtr>(::GetProcAddress( | |
| 386 ::GetModuleHandle(L"ntdll.dll"), "NtTerminateProcess")); | |
| 387 if (terminate_process_func_address == NULL) | |
| 388 return; | |
| 389 | |
| 390 DWORD old_protect = 0; | |
| 391 if (!::VirtualProtect(terminate_process_func_address, 5, | |
| 392 PAGE_EXECUTE_READWRITE, &old_protect)) | |
| 393 return; | |
| 394 | |
| 395 g_real_terminate_process_stub = reinterpret_cast<char*>(VirtualAllocEx( | |
| 396 ::GetCurrentProcess(), NULL, sidestep::kMaxPreambleStubSize, | |
| 397 MEM_COMMIT, PAGE_EXECUTE_READWRITE)); | |
| 398 if (g_real_terminate_process_stub == NULL) | |
| 399 return; | |
| 400 | |
| 401 g_surrogate_exception_pointers.ContextRecord = &g_surrogate_context; | |
| 402 g_surrogate_exception_pointers.ExceptionRecord = | |
| 403 &g_surrogate_exception_record; | |
| 404 | |
| 405 sidestep::SideStepError patch_result = | |
| 406 sidestep::PreamblePatcher::Patch( | |
| 407 terminate_process_func_address, HookNtTerminateProcess, | |
| 408 g_real_terminate_process_stub, sidestep::kMaxPreambleStubSize); | |
| 409 if (patch_result != sidestep::SIDESTEP_SUCCESS) { | |
| 410 CHECK(::VirtualFreeEx(::GetCurrentProcess(), g_real_terminate_process_stub, | |
| 411 0, MEM_RELEASE)); | |
| 412 CHECK(::VirtualProtect(terminate_process_func_address, 5, old_protect, | |
| 413 &old_protect)); | |
| 414 return; | |
| 415 } | |
| 416 | |
| 417 DWORD dummy = 0; | |
| 418 CHECK(::VirtualProtect(terminate_process_func_address, | |
| 419 5, | |
| 420 old_protect, | |
| 421 &dummy)); | |
| 422 CHECK(::VirtualProtect(g_real_terminate_process_stub, | |
| 423 sidestep::kMaxPreambleStubSize, | |
| 424 old_protect, | |
| 425 &old_protect)); | |
| 426 } | |
| 427 | |
| 428 static void InitPipeNameEnvVar(bool is_per_user_install) { | |
| 429 scoped_ptr<base::Environment> env(base::Environment::Create()); | |
| 430 if (env->HasVar(kPipeNameVar)) { | |
| 431 // The Breakpad pipe name is already configured: nothing to do. | |
| 432 return; | |
| 433 } | |
| 434 | |
| 435 // Check whether configuration management controls crash reporting. | |
| 436 bool crash_reporting_enabled = true; | |
| 437 bool controlled_by_policy = GetBreakpadClient()->ReportingIsEnforcedByPolicy( | |
| 438 &crash_reporting_enabled); | |
| 439 | |
| 440 const CommandLine& command = *CommandLine::ForCurrentProcess(); | |
| 441 bool use_crash_service = | |
| 442 !controlled_by_policy && (command.HasSwitch(switches::kNoErrorDialogs) || | |
| 443 GetBreakpadClient()->IsRunningUnattended()); | |
| 444 | |
| 445 std::wstring pipe_name; | |
| 446 if (use_crash_service) { | |
| 447 // Crash reporting is done by crash_service.exe. | |
| 448 pipe_name = kChromePipeName; | |
| 449 } else { | |
| 450 // We want to use the Google Update crash reporting. We need to check if the | |
| 451 // user allows it first (in case the administrator didn't already decide | |
| 452 // via policy). | |
| 453 if (!controlled_by_policy) | |
| 454 crash_reporting_enabled = GetBreakpadClient()->GetCollectStatsConsent(); | |
| 455 | |
| 456 if (!crash_reporting_enabled) { | |
| 457 // Crash reporting is disabled, don't set the environment variable. | |
| 458 return; | |
| 459 } | |
| 460 | |
| 461 // Build the pipe name. It can be either: | |
| 462 // System-wide install: "NamedPipe\GoogleCrashServices\S-1-5-18" | |
| 463 // Per-user install: "NamedPipe\GoogleCrashServices\<user SID>" | |
| 464 std::wstring user_sid; | |
| 465 if (is_per_user_install) { | |
| 466 if (!base::win::GetUserSidString(&user_sid)) { | |
| 467 return; | |
| 468 } | |
| 469 } else { | |
| 470 user_sid = kSystemPrincipalSid; | |
| 471 } | |
| 472 | |
| 473 pipe_name = kGoogleUpdatePipeName; | |
| 474 pipe_name += user_sid; | |
| 475 } | |
| 476 env->SetVar(kPipeNameVar, base::UTF16ToASCII(pipe_name)); | |
| 477 } | |
| 478 | |
| 479 void InitDefaultCrashCallback(LPTOP_LEVEL_EXCEPTION_FILTER filter) { | |
| 480 previous_filter = SetUnhandledExceptionFilter(filter); | |
| 481 } | |
| 482 | |
| 483 void InitCrashReporter(const std::string& process_type_switch) { | |
| 484 const CommandLine& command = *CommandLine::ForCurrentProcess(); | |
| 485 if (command.HasSwitch(switches::kDisableBreakpad)) | |
| 486 return; | |
| 487 | |
| 488 // Disable the message box for assertions. | |
| 489 _CrtSetReportMode(_CRT_ASSERT, 0); | |
| 490 | |
| 491 std::wstring process_type = base::ASCIIToWide(process_type_switch); | |
| 492 if (process_type.empty()) | |
| 493 process_type = L"browser"; | |
| 494 | |
| 495 wchar_t exe_path[MAX_PATH]; | |
| 496 exe_path[0] = 0; | |
| 497 GetModuleFileNameW(NULL, exe_path, MAX_PATH); | |
| 498 | |
| 499 bool is_per_user_install = | |
| 500 GetBreakpadClient()->GetIsPerUserInstall(base::FilePath(exe_path)); | |
| 501 | |
| 502 // This is intentionally leaked. | |
| 503 CrashKeysWin* keeper = new CrashKeysWin(); | |
| 504 | |
| 505 google_breakpad::CustomClientInfo* custom_info = | |
| 506 keeper->GetCustomInfo(exe_path, process_type, | |
| 507 GetProfileType(), CommandLine::ForCurrentProcess(), | |
| 508 GetBreakpadClient()); | |
| 509 | |
| 510 google_breakpad::ExceptionHandler::MinidumpCallback callback = NULL; | |
| 511 LPTOP_LEVEL_EXCEPTION_FILTER default_filter = NULL; | |
| 512 // We install the post-dump callback only for the browser and service | |
| 513 // processes. It spawns a new browser/service process. | |
| 514 if (process_type == L"browser") { | |
| 515 callback = &DumpDoneCallback; | |
| 516 default_filter = &ChromeExceptionFilter; | |
| 517 } else if (process_type == L"service") { | |
| 518 callback = &DumpDoneCallback; | |
| 519 default_filter = &ServiceExceptionFilter; | |
| 520 } | |
| 521 | |
| 522 if (process_type == L"browser") { | |
| 523 InitPipeNameEnvVar(is_per_user_install); | |
| 524 GetBreakpadClient()->InitBrowserCrashDumpsRegKey(); | |
| 525 } | |
| 526 | |
| 527 scoped_ptr<base::Environment> env(base::Environment::Create()); | |
| 528 std::string pipe_name_ascii; | |
| 529 if (!env->GetVar(kPipeNameVar, &pipe_name_ascii)) { | |
| 530 // Breakpad is not enabled. Configuration is managed or the user | |
| 531 // did not allow Google Update to send crashes. We need to use | |
| 532 // our default crash handler instead, but only for the | |
| 533 // browser/service processes. | |
| 534 if (default_filter) | |
| 535 InitDefaultCrashCallback(default_filter); | |
| 536 return; | |
| 537 } | |
| 538 std::wstring pipe_name = base::ASCIIToWide(pipe_name_ascii); | |
| 539 | |
| 540 #ifdef _WIN64 | |
| 541 // The protocol for connecting to the out-of-process Breakpad crash | |
| 542 // reporter is different for x86-32 and x86-64: the message sizes | |
| 543 // are different because the message struct contains a pointer. As | |
| 544 // a result, there are two different named pipes to connect to. The | |
| 545 // 64-bit one is distinguished with an "-x64" suffix. | |
| 546 pipe_name += L"-x64"; | |
| 547 #endif | |
| 548 | |
| 549 // Get the alternate dump directory. We use the temp path. | |
| 550 wchar_t temp_dir[MAX_PATH] = {0}; | |
| 551 ::GetTempPathW(MAX_PATH, temp_dir); | |
| 552 | |
| 553 MINIDUMP_TYPE dump_type = kSmallDumpType; | |
| 554 // Capture full memory if explicitly instructed to. | |
| 555 if (command.HasSwitch(switches::kFullMemoryCrashReport)) | |
| 556 dump_type = kFullDumpType; | |
| 557 else if (GetBreakpadClient()->GetShouldDumpLargerDumps(is_per_user_install)) | |
| 558 dump_type = kLargerDumpType; | |
| 559 | |
| 560 g_breakpad = new google_breakpad::ExceptionHandler(temp_dir, &FilterCallback, | |
| 561 callback, NULL, | |
| 562 google_breakpad::ExceptionHandler::HANDLER_ALL, | |
| 563 dump_type, pipe_name.c_str(), custom_info); | |
| 564 | |
| 565 // Now initialize the non crash dump handler. | |
| 566 g_dumphandler_no_crash = new google_breakpad::ExceptionHandler(temp_dir, | |
| 567 &FilterCallbackWhenNoCrash, | |
| 568 &DumpDoneCallbackWhenNoCrash, | |
| 569 NULL, | |
| 570 // Set the handler to none so this handler would not be added to | |
| 571 // |handler_stack_| in |ExceptionHandler| which is a list of exception | |
| 572 // handlers. | |
| 573 google_breakpad::ExceptionHandler::HANDLER_NONE, | |
| 574 dump_type, pipe_name.c_str(), custom_info); | |
| 575 | |
| 576 // Set the DumpWithoutCrashingFunction for this instance of base.lib. Other | |
| 577 // executable images linked with base should set this again for | |
| 578 // DumpWithoutCrashing to function correctly. | |
| 579 // See chrome_main.cc for example. | |
| 580 base::debug::SetDumpWithoutCrashingFunction(&DumpProcessWithoutCrash); | |
| 581 | |
| 582 if (g_breakpad->IsOutOfProcess()) { | |
| 583 // Tells breakpad to handle breakpoint and single step exceptions. | |
| 584 // This might break JIT debuggers, but at least it will always | |
| 585 // generate a crashdump for these exceptions. | |
| 586 g_breakpad->set_handle_debug_exceptions(true); | |
| 587 | |
| 588 #ifndef _WIN64 | |
| 589 if (process_type != L"browser" && | |
| 590 !GetBreakpadClient()->IsRunningUnattended()) { | |
| 591 // Initialize the hook TerminateProcess to catch unexpected exits. | |
| 592 InitTerminateProcessHooks(); | |
| 593 } | |
| 594 #endif | |
| 595 } | |
| 596 } | |
| 597 | |
| 598 // If the user has disabled crash reporting uploads and restarted Chrome, the | |
| 599 // restarted instance will still contain the pipe environment variable, which | |
| 600 // will allow the restarted process to still upload crash reports. This function | |
| 601 // clears the environment variable, so that the restarted Chrome, which inherits | |
| 602 // its environment from the current Chrome, will no longer contain the variable. | |
| 603 extern "C" void __declspec(dllexport) __cdecl | |
| 604 ClearBreakpadPipeEnvironmentVariable() { | |
| 605 scoped_ptr<base::Environment> env(base::Environment::Create()); | |
| 606 env->UnSetVar(kPipeNameVar); | |
| 607 } | |
| 608 | |
| 609 } // namespace breakpad | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 485893007:
Rename components/breakpad to components/crash. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src