/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "mozilla/dom/CrashReporterChild.h" #include "mozilla/Services.h" #include "nsIObserverService.h" #include "mozilla/Util.h" #include "nsXULAppAPI.h" #include "nsExceptionHandler.h" #include "nsThreadUtils.h" #if defined(XP_WIN32) #ifdef WIN32_LEAN_AND_MEAN #undef WIN32_LEAN_AND_MEAN #endif #include "nsIWindowsRegKey.h" #include "client/windows/crash_generation/client_info.h" #include "client/windows/crash_generation/crash_generation_server.h" #include "client/windows/handler/exception_handler.h" #include #include #include "nsDirectoryServiceUtils.h" #include "nsWindowsDllInterceptor.h" #elif defined(XP_MACOSX) #include "client/mac/crash_generation/client_info.h" #include "client/mac/crash_generation/crash_generation_server.h" #include "client/mac/handler/exception_handler.h" #include #include #include #include #include #include #include #include #include #include "mac_utils.h" #elif defined(XP_LINUX) #include "nsDirectoryServiceDefs.h" #include "nsIINIParser.h" #include "common/linux/linux_libc_support.h" #include "third_party/lss/linux_syscall_support.h" #include "client/linux/crash_generation/client_info.h" #include "client/linux/crash_generation/crash_generation_server.h" #include "client/linux/handler/exception_handler.h" #include "client/linux/minidump_writer/linux_dumper.h" #include "client/linux/minidump_writer/minidump_writer.h" #include #include #include #elif defined(XP_SOLARIS) #include "client/solaris/handler/exception_handler.h" #include #include #include #else #error "Not yet implemented for this platform" #endif // defined(XP_WIN32) #ifdef MOZ_CRASHREPORTER_INJECTOR #include "InjectCrashReporter.h" using mozilla::InjectCrashRunnable; #endif #include #include #include #include #include #include "mozilla/Mutex.h" #include "nsDebug.h" #include "nsCRT.h" #include "nsIFile.h" #include "nsIFileStreams.h" #include "nsInterfaceHashtable.h" #include "prprf.h" #include "nsIXULAppInfo.h" #include #include #include "mozilla/mozalloc_oom.h" #include "mozilla/mozPoisonWrite.h" #if defined(XP_MACOSX) CFStringRef reporterClientAppID = CFSTR("org.mozilla.crashreporter"); #endif #if defined(MOZ_WIDGET_ANDROID) #include "common/linux/file_id.h" #endif #include "nsIUUIDGenerator.h" using google_breakpad::CrashGenerationServer; using google_breakpad::ClientInfo; #ifdef XP_LINUX using google_breakpad::MinidumpDescriptor; #endif using namespace mozilla; using mozilla::dom::CrashReporterChild; using mozilla::dom::PCrashReporterChild; namespace CrashReporter { #ifdef XP_WIN32 typedef wchar_t XP_CHAR; typedef std::wstring xpstring; #define CONVERT_UTF16_TO_XP_CHAR(x) x #define CONVERT_XP_CHAR_TO_UTF16(x) x #define XP_STRLEN(x) wcslen(x) #define my_strlen strlen #define CRASH_REPORTER_FILENAME "crashreporter.exe" #define PATH_SEPARATOR "\\" #define XP_PATH_SEPARATOR L"\\" // sort of arbitrary, but MAX_PATH is kinda small #define XP_PATH_MAX 4096 // "" "" #define CMDLINE_SIZE ((XP_PATH_MAX * 2) + 6) #ifdef _USE_32BIT_TIME_T #define XP_TTOA(time, buffer, base) ltoa(time, buffer, base) #else #define XP_TTOA(time, buffer, base) _i64toa(time, buffer, base) #endif #define XP_STOA(size, buffer, base) _ui64toa(size, buffer, base) #else typedef char XP_CHAR; typedef std::string xpstring; #define CONVERT_UTF16_TO_XP_CHAR(x) NS_ConvertUTF16toUTF8(x) #define CONVERT_XP_CHAR_TO_UTF16(x) NS_ConvertUTF8toUTF16(x) #define CRASH_REPORTER_FILENAME "crashreporter" #define PATH_SEPARATOR "/" #define XP_PATH_SEPARATOR "/" #define XP_PATH_MAX PATH_MAX #ifdef XP_LINUX #define XP_STRLEN(x) my_strlen(x) #define XP_TTOA(time, buffer, base) my_inttostring(time, buffer, sizeof(buffer)) #define XP_STOA(size, buffer, base) my_inttostring(size, buffer, sizeof(buffer)) #else #define XP_STRLEN(x) strlen(x) #define XP_TTOA(time, buffer, base) sprintf(buffer, "%ld", time) #define XP_STOA(size, buffer, base) sprintf(buffer, "%zu", size) #define my_strlen strlen #define sys_close close #define sys_fork fork #define sys_open open #define sys_write write #endif #endif // XP_WIN32 static const XP_CHAR dumpFileExtension[] = {'.', 'd', 'm', 'p', '\0'}; // .dmp static const XP_CHAR extraFileExtension[] = {'.', 'e', 'x', 't', 'r', 'a', '\0'}; // .extra static google_breakpad::ExceptionHandler* gExceptionHandler = nullptr; static XP_CHAR* pendingDirectory; static XP_CHAR* crashReporterPath; // If this is false, we don't launch the crash reporter static bool doReport = true; // If this is true, we don't have a crash reporter static bool headlessClient = false; // if this is true, we pass the exception on to the OS crash reporter static bool showOSCrashReporter = false; // The time of the last recorded crash, as a time_t value. static time_t lastCrashTime = 0; // The pathname of a file to store the crash time in static XP_CHAR lastCrashTimeFilename[XP_PATH_MAX] = {0}; // A marker file to hold the path to the last dump written, which // will be checked on startup. static XP_CHAR crashMarkerFilename[XP_PATH_MAX] = {0}; // Whether we've already looked for the marker file. static bool lastRunCrashID_checked = false; // The minidump ID contained in the marker file. static nsString* lastRunCrashID = nullptr; #if defined(MOZ_WIDGET_ANDROID) // on Android 4.2 and above there is a user serial number associated // with the current process that gets lost when we fork so we need to // explicitly pass it to am static char* androidUserSerial = nullptr; #endif // these are just here for readability static const char kCrashTimeParameter[] = "CrashTime="; static const int kCrashTimeParameterLen = sizeof(kCrashTimeParameter)-1; static const char kTimeSinceLastCrashParameter[] = "SecondsSinceLastCrash="; static const int kTimeSinceLastCrashParameterLen = sizeof(kTimeSinceLastCrashParameter)-1; static const char kSysMemoryParameter[] = "SystemMemoryUsePercentage="; static const int kSysMemoryParameterLen = sizeof(kSysMemoryParameter)-1; static const char kTotalVirtualMemoryParameter[] = "TotalVirtualMemory="; static const int kTotalVirtualMemoryParameterLen = sizeof(kTotalVirtualMemoryParameter)-1; static const char kAvailableVirtualMemoryParameter[] = "AvailableVirtualMemory="; static const int kAvailableVirtualMemoryParameterLen = sizeof(kAvailableVirtualMemoryParameter)-1; static const char kOOMAllocationSizeParameter[] = "OOMAllocationSize="; static const int kOOMAllocationSizeParameterLen = sizeof(kOOMAllocationSizeParameter)-1; static const char kAvailablePageFileParameter[] = "AvailablePageFile="; static const int kAvailablePageFileParameterLen = sizeof(kAvailablePageFileParameter)-1; static const char kAvailablePhysicalMemoryParameter[] = "AvailablePhysicalMemory="; static const int kAvailablePhysicalMemoryParameterLen = sizeof(kAvailablePhysicalMemoryParameter)-1; static const char kIsGarbageCollectingParameter[] = "IsGarbageCollecting="; static const int kIsGarbageCollectingParameterLen = sizeof(kIsGarbageCollectingParameter)-1; // this holds additional data sent via the API static Mutex* crashReporterAPILock; static Mutex* notesFieldLock; static AnnotationTable* crashReporterAPIData_Hash; static nsCString* crashReporterAPIData = nullptr; static nsCString* notesField = nullptr; static bool isGarbageCollecting; // OOP crash reporting static CrashGenerationServer* crashServer; // chrome process has this # if defined(XP_WIN) || defined(XP_MACOSX) // If crash reporting is disabled, we hand out this "null" pipe to the // child process and don't attempt to connect to a parent server. static const char kNullNotifyPipe[] = "-"; static char* childCrashNotifyPipe; # elif defined(XP_LINUX) static int serverSocketFd = -1; static int clientSocketFd = -1; static const int kMagicChildCrashReportFd = 4; # endif // |dumpMapLock| must protect all access to |pidToMinidump|. static Mutex* dumpMapLock; struct ChildProcessData : public nsUint32HashKey { ChildProcessData(KeyTypePointer aKey) : nsUint32HashKey(aKey) , sequence(0) #ifdef MOZ_CRASHREPORTER_INJECTOR , callback(NULL) #endif { } nsCOMPtr minidump; // Each crashing process is assigned an increasing sequence number to // indicate which process crashed first. uint32_t sequence; #ifdef MOZ_CRASHREPORTER_INJECTOR InjectorCrashCallback* callback; #endif }; typedef nsTHashtable ChildMinidumpMap; static ChildMinidumpMap* pidToMinidump; static uint32_t crashSequence; static bool OOPInitialized(); #ifdef MOZ_CRASHREPORTER_INJECTOR static nsIThread* sInjectorThread; class ReportInjectedCrash : public nsRunnable { public: ReportInjectedCrash(uint32_t pid) : mPID(pid) { } NS_IMETHOD Run(); private: uint32_t mPID; }; #endif // MOZ_CRASHREPORTER_INJECTOR // Crashreporter annotations that we don't send along in subprocess // reports static const char* kSubprocessBlacklist[] = { "FramePoisonBase", "FramePoisonSize", "StartupTime", "URL" }; // If annotations are attempted before the crash reporter is enabled, // they queue up here. class DelayedNote; nsTArray >* gDelayedAnnotations; #if defined(XP_WIN) // the following are used to prevent other DLLs reverting the last chance // exception handler to the windows default. Any attempt to change the // unhandled exception filter or to reset it is ignored and our crash // reporter is loaded instead (in case it became unloaded somehow) typedef LPTOP_LEVEL_EXCEPTION_FILTER (WINAPI *SetUnhandledExceptionFilter_func) (LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilter); static SetUnhandledExceptionFilter_func stub_SetUnhandledExceptionFilter = 0; static WindowsDllInterceptor gKernel32Intercept; static bool gBlockUnhandledExceptionFilter = true; static LPTOP_LEVEL_EXCEPTION_FILTER WINAPI patched_SetUnhandledExceptionFilter (LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilter) { if (!gBlockUnhandledExceptionFilter) { // don't intercept return stub_SetUnhandledExceptionFilter(lpTopLevelExceptionFilter); } // intercept attempts to change the filter return NULL; } #endif #ifdef XP_MACOSX static cpu_type_t pref_cpu_types[2] = { #if defined(__i386__) CPU_TYPE_X86, #elif defined(__x86_64__) CPU_TYPE_X86_64, #elif defined(__ppc__) CPU_TYPE_POWERPC, #endif CPU_TYPE_ANY }; static posix_spawnattr_t spawnattr; #endif #if defined(MOZ_WIDGET_ANDROID) // Android builds use a custom library loader, // so the embedding will provide a list of shared // libraries that are mapped into anonymous mappings. typedef struct { std::string name; uintptr_t start_address; size_t length; size_t file_offset; } mapping_info; static std::vector library_mappings; typedef std::map MappingMap; #endif #ifdef XP_LINUX inline void my_inttostring(intmax_t t, char* buffer, size_t buffer_length) { my_memset(buffer, 0, buffer_length); my_uitos(buffer, t, my_uint_len(t)); } #endif #ifdef XP_WIN static void CreateFileFromPath(const xpstring& path, nsIFile** file) { NS_NewLocalFile(nsDependentString(path.c_str()), false, file); } #else static void CreateFileFromPath(const xpstring& path, nsIFile** file) { NS_NewNativeLocalFile(nsDependentCString(path.c_str()), false, file); } #endif static XP_CHAR* Concat(XP_CHAR* str, const XP_CHAR* toAppend, int* size) { int appendLen = XP_STRLEN(toAppend); if (appendLen >= *size) appendLen = *size - 1; memcpy(str, toAppend, appendLen * sizeof(XP_CHAR)); str += appendLen; *str = '\0'; *size -= appendLen; return str; } static size_t gOOMAllocationSize = 0; void AnnotateOOMAllocationSize(size_t size) { gOOMAllocationSize = size; } bool MinidumpCallback( #ifdef XP_LINUX const MinidumpDescriptor& descriptor, #else const XP_CHAR* dump_path, const XP_CHAR* minidump_id, #endif void* context, #ifdef XP_WIN32 EXCEPTION_POINTERS* exinfo, MDRawAssertionInfo* assertion, #endif bool succeeded) { bool returnValue = showOSCrashReporter ? false : succeeded; static XP_CHAR minidumpPath[XP_PATH_MAX]; int size = XP_PATH_MAX; XP_CHAR* p; #ifndef XP_LINUX p = Concat(minidumpPath, dump_path, &size); p = Concat(p, XP_PATH_SEPARATOR, &size); p = Concat(p, minidump_id, &size); Concat(p, dumpFileExtension, &size); #else Concat(minidumpPath, descriptor.path(), &size); #endif static XP_CHAR extraDataPath[XP_PATH_MAX]; size = XP_PATH_MAX; #ifndef XP_LINUX p = Concat(extraDataPath, dump_path, &size); p = Concat(p, XP_PATH_SEPARATOR, &size); p = Concat(p, minidump_id, &size); #else p = Concat(extraDataPath, descriptor.path(), &size); // Skip back past the .dmp extension. p -= 4; #endif Concat(p, extraFileExtension, &size); if (headlessClient) { // Leave a marker indicating that there was a crash. #if defined(XP_WIN32) HANDLE hFile = CreateFile(crashMarkerFilename, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if(hFile != INVALID_HANDLE_VALUE) { DWORD nBytes; WriteFile(hFile, minidumpPath, 2*wcslen(minidumpPath), &nBytes, NULL); CloseHandle(hFile); } #elif defined(XP_UNIX) int fd = sys_open(crashMarkerFilename, O_WRONLY | O_CREAT | O_TRUNC, 0600); if (fd != -1) { ssize_t ignored = sys_write(fd, minidumpPath, my_strlen(minidumpPath)); (void)ignored; sys_close(fd); } #endif } char oomAllocationSizeBuffer[32]; int oomAllocationSizeBufferLen = 0; if (gOOMAllocationSize) { XP_STOA(gOOMAllocationSize, oomAllocationSizeBuffer, 10); oomAllocationSizeBufferLen = my_strlen(oomAllocationSizeBuffer); } // calculate time since last crash (if possible), and store // the time of this crash. time_t crashTime; #ifdef XP_LINUX struct kernel_timeval tv; sys_gettimeofday(&tv, NULL); crashTime = tv.tv_sec; #else crashTime = time(NULL); #endif time_t timeSinceLastCrash = 0; // stringified versions of the above char crashTimeString[32]; int crashTimeStringLen = 0; char timeSinceLastCrashString[32]; int timeSinceLastCrashStringLen = 0; XP_TTOA(crashTime, crashTimeString, 10); crashTimeStringLen = my_strlen(crashTimeString); if (lastCrashTime != 0) { timeSinceLastCrash = crashTime - lastCrashTime; XP_TTOA(timeSinceLastCrash, timeSinceLastCrashString, 10); timeSinceLastCrashStringLen = my_strlen(timeSinceLastCrashString); } // write crash time to file if (lastCrashTimeFilename[0] != 0) { #if defined(XP_WIN32) HANDLE hFile = CreateFile(lastCrashTimeFilename, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if(hFile != INVALID_HANDLE_VALUE) { DWORD nBytes; WriteFile(hFile, crashTimeString, crashTimeStringLen, &nBytes, NULL); CloseHandle(hFile); } #elif defined(XP_UNIX) int fd = sys_open(lastCrashTimeFilename, O_WRONLY | O_CREAT | O_TRUNC, 0600); if (fd != -1) { ssize_t ignored = sys_write(fd, crashTimeString, crashTimeStringLen); (void)ignored; sys_close(fd); } #endif } #if defined(XP_WIN32) if (!crashReporterAPIData->IsEmpty()) { // write out API data HANDLE hFile = CreateFile(extraDataPath, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if(hFile != INVALID_HANDLE_VALUE) { DWORD nBytes; WriteFile(hFile, crashReporterAPIData->get(), crashReporterAPIData->Length(), &nBytes, NULL); WriteFile(hFile, kCrashTimeParameter, kCrashTimeParameterLen, &nBytes, NULL); WriteFile(hFile, crashTimeString, crashTimeStringLen, &nBytes, NULL); WriteFile(hFile, "\n", 1, &nBytes, NULL); if (timeSinceLastCrash != 0) { WriteFile(hFile, kTimeSinceLastCrashParameter, kTimeSinceLastCrashParameterLen, &nBytes, NULL); WriteFile(hFile, timeSinceLastCrashString, timeSinceLastCrashStringLen, &nBytes, NULL); WriteFile(hFile, "\n", 1, &nBytes, NULL); } if (isGarbageCollecting) { WriteFile(hFile, kIsGarbageCollectingParameter, kIsGarbageCollectingParameterLen, &nBytes, NULL); WriteFile(hFile, isGarbageCollecting ? "1" : "0", 1, &nBytes, NULL); WriteFile(hFile, "\n", 1, &nBytes, NULL); } // Try to get some information about memory. MEMORYSTATUSEX statex; statex.dwLength = sizeof(statex); if (GlobalMemoryStatusEx(&statex)) { char buffer[128]; int bufferLen; #define WRITE_STATEX_FIELD(field, paramName, conversionFunc) \ WriteFile(hFile, k##paramName##Parameter, \ k##paramName##ParameterLen, &nBytes, NULL); \ conversionFunc(statex.field, buffer, 10); \ bufferLen = strlen(buffer); \ WriteFile(hFile, buffer, bufferLen, &nBytes, NULL); \ WriteFile(hFile, "\n", 1, &nBytes, NULL); WRITE_STATEX_FIELD(dwMemoryLoad, SysMemory, ltoa); WRITE_STATEX_FIELD(ullTotalVirtual, TotalVirtualMemory, _ui64toa); WRITE_STATEX_FIELD(ullAvailVirtual, AvailableVirtualMemory, _ui64toa); WRITE_STATEX_FIELD(ullAvailPageFile, AvailablePageFile, _ui64toa); WRITE_STATEX_FIELD(ullAvailPhys, AvailablePhysicalMemory, _ui64toa); #undef WRITE_STATEX_FIELD } if (oomAllocationSizeBufferLen) { WriteFile(hFile, kOOMAllocationSizeParameter, kOOMAllocationSizeParameterLen, &nBytes, NULL); WriteFile(hFile, oomAllocationSizeBuffer, oomAllocationSizeBufferLen, &nBytes, NULL); WriteFile(hFile, "\n", 1, &nBytes, NULL); } CloseHandle(hFile); } } if (!doReport) { return returnValue; } XP_CHAR cmdLine[CMDLINE_SIZE]; size = CMDLINE_SIZE; p = Concat(cmdLine, L"\"", &size); p = Concat(p, crashReporterPath, &size); p = Concat(p, L"\" \"", &size); p = Concat(p, minidumpPath, &size); Concat(p, L"\"", &size); STARTUPINFO si; PROCESS_INFORMATION pi; ZeroMemory(&si, sizeof(si)); si.cb = sizeof(si); si.dwFlags = STARTF_USESHOWWINDOW; si.wShowWindow = SW_SHOWNORMAL; ZeroMemory(&pi, sizeof(pi)); if (CreateProcess(NULL, (LPWSTR)cmdLine, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi)) { CloseHandle( pi.hProcess ); CloseHandle( pi.hThread ); } // we're not really in a position to do anything if the CreateProcess fails TerminateProcess(GetCurrentProcess(), 1); #elif defined(XP_UNIX) if (!crashReporterAPIData->IsEmpty()) { // write out API data int fd = sys_open(extraDataPath, O_WRONLY | O_CREAT | O_TRUNC, 0666); if (fd != -1) { // not much we can do in case of error ssize_t ignored = sys_write(fd, crashReporterAPIData->get(), crashReporterAPIData->Length()); ignored = sys_write(fd, kCrashTimeParameter, kCrashTimeParameterLen); ignored = sys_write(fd, crashTimeString, crashTimeStringLen); ignored = sys_write(fd, "\n", 1); if (timeSinceLastCrash != 0) { ignored = sys_write(fd, kTimeSinceLastCrashParameter, kTimeSinceLastCrashParameterLen); ignored = sys_write(fd, timeSinceLastCrashString, timeSinceLastCrashStringLen); ignored = sys_write(fd, "\n", 1); } if (isGarbageCollecting) { ignored = sys_write(fd, kIsGarbageCollectingParameter, kIsGarbageCollectingParameterLen); ignored = sys_write(fd, isGarbageCollecting ? "1" : "0", 1); ignored = sys_write(fd, "\n", 1); } if (oomAllocationSizeBufferLen) { sys_write(fd, kOOMAllocationSizeParameter, kOOMAllocationSizeParameterLen); sys_write(fd, oomAllocationSizeBuffer, oomAllocationSizeBufferLen); sys_write(fd, "\n", 1); } sys_close(fd); } } if (!doReport) { return returnValue; } #ifdef XP_MACOSX char* const my_argv[] = { crashReporterPath, minidumpPath, NULL }; char **env = NULL; char ***nsEnv = _NSGetEnviron(); if (nsEnv) env = *nsEnv; int result = posix_spawnp(NULL, my_argv[0], NULL, &spawnattr, my_argv, env); if (result != 0) return false; #else // !XP_MACOSX pid_t pid = sys_fork(); if (pid == -1) return false; else if (pid == 0) { #if !defined(MOZ_WIDGET_ANDROID) // need to clobber this, as libcurl might load NSS, // and we want it to load the system NSS. unsetenv("LD_LIBRARY_PATH"); (void) execl(crashReporterPath, crashReporterPath, minidumpPath, (char*)0); #else // Invoke the reportCrash activity using am if (androidUserSerial) { (void) execlp("/system/bin/am", "/system/bin/am", "start", "--user", androidUserSerial, "-a", "org.mozilla.gecko.reportCrash", "-n", crashReporterPath, "--es", "minidumpPath", minidumpPath, (char*)0); } else { (void) execlp("/system/bin/am", "/system/bin/am", "start", "-a", "org.mozilla.gecko.reportCrash", "-n", crashReporterPath, "--es", "minidumpPath", minidumpPath, (char*)0); } #endif _exit(1); } #endif // XP_MACOSX #endif // XP_UNIX return returnValue; } #ifdef XP_WIN static void* gBreakpadReservedVM; /** * Reserve some VM space. In the event that we crash because VM space is * being leaked without leaking memory, freeing this space before taking * the minidump will allow us to collect a minidump. */ static const SIZE_T kReserveSize = 0xc00000; // 12 MB static void ReserveBreakpadVM() { if (!gBreakpadReservedVM) { gBreakpadReservedVM = VirtualAlloc(NULL, kReserveSize, MEM_RESERVE, 0); } } static void FreeBreakpadVM() { if (gBreakpadReservedVM) { VirtualFree(gBreakpadReservedVM, kReserveSize, MEM_RELEASE); } } /** * Filters out floating point exceptions which are handled by nsSigHandlers.cpp * and should not be handled as crashes. * * Also calls FreeBreakpadVM if appropriate. */ static bool FPEFilter(void* context, EXCEPTION_POINTERS* exinfo, MDRawAssertionInfo* assertion) { if (!exinfo) { FreeBreakpadVM(); return true; } PEXCEPTION_RECORD e = (PEXCEPTION_RECORD)exinfo->ExceptionRecord; switch (e->ExceptionCode) { case STATUS_FLOAT_DENORMAL_OPERAND: case STATUS_FLOAT_DIVIDE_BY_ZERO: case STATUS_FLOAT_INEXACT_RESULT: case STATUS_FLOAT_INVALID_OPERATION: case STATUS_FLOAT_OVERFLOW: case STATUS_FLOAT_STACK_CHECK: case STATUS_FLOAT_UNDERFLOW: case STATUS_FLOAT_MULTIPLE_FAULTS: case STATUS_FLOAT_MULTIPLE_TRAPS: return false; // Don't write minidump, continue exception search } FreeBreakpadVM(); return true; } #endif // XP_WIN static bool ShouldReport() { // this environment variable prevents us from launching // the crash reporter client const char *envvar = PR_GetEnv("MOZ_CRASHREPORTER_NO_REPORT"); if (envvar && *envvar) { return false; } envvar = PR_GetEnv("MOZ_CRASHREPORTER_FULLDUMP"); if (envvar && *envvar) { return false; } return true; } namespace { bool Filter(void* context) { mozilla::DisableWritePoisoning(); return true; } } nsresult SetExceptionHandler(nsIFile* aXREDirectory, bool force/*=false*/) { if (gExceptionHandler) return NS_ERROR_ALREADY_INITIALIZED; const char *envvar = PR_GetEnv("MOZ_CRASHREPORTER_DISABLE"); if (envvar && *envvar && !force) return NS_OK; #if defined(MOZ_WIDGET_GONK) doReport = false; headlessClient = true; #elif defined(XP_WIN) if (XRE_GetWindowsEnvironment() == WindowsEnvironmentType_Desktop) { doReport = ShouldReport(); } else { doReport = false; headlessClient = true; } #else // this environment variable prevents us from launching // the crash reporter client doReport = ShouldReport(); #endif // allocate our strings crashReporterAPIData = new nsCString(); NS_ENSURE_TRUE(crashReporterAPIData, NS_ERROR_OUT_OF_MEMORY); NS_ASSERTION(!crashReporterAPILock, "Shouldn't have a lock yet"); crashReporterAPILock = new Mutex("crashReporterAPILock"); NS_ASSERTION(!notesFieldLock, "Shouldn't have a lock yet"); notesFieldLock = new Mutex("notesFieldLock"); crashReporterAPIData_Hash = new nsDataHashtable(); NS_ENSURE_TRUE(crashReporterAPIData_Hash, NS_ERROR_OUT_OF_MEMORY); crashReporterAPIData_Hash->Init(); notesField = new nsCString(); NS_ENSURE_TRUE(notesField, NS_ERROR_OUT_OF_MEMORY); if (!headlessClient) { // locate crashreporter executable nsCOMPtr exePath; nsresult rv = aXREDirectory->Clone(getter_AddRefs(exePath)); NS_ENSURE_SUCCESS(rv, rv); #if defined(XP_MACOSX) exePath->Append(NS_LITERAL_STRING("crashreporter.app")); exePath->Append(NS_LITERAL_STRING("Contents")); exePath->Append(NS_LITERAL_STRING("MacOS")); #endif exePath->AppendNative(NS_LITERAL_CSTRING(CRASH_REPORTER_FILENAME)); #ifdef XP_WIN32 nsString crashReporterPath_temp; exePath->GetPath(crashReporterPath_temp); crashReporterPath = ToNewUnicode(crashReporterPath_temp); #elif !defined(__ANDROID__) nsCString crashReporterPath_temp; exePath->GetNativePath(crashReporterPath_temp); crashReporterPath = ToNewCString(crashReporterPath_temp); #else // On Android, we launch using the application package name // instead of a filename, so use ANDROID_PACKAGE_NAME to do that here. nsCString package(ANDROID_PACKAGE_NAME "/org.mozilla.gecko.CrashReporter"); crashReporterPath = ToNewCString(package); #endif } // get temp path to use for minidump path #if defined(XP_WIN32) nsString tempPath; // first figure out buffer size int pathLen = GetTempPath(0, NULL); if (pathLen == 0) return NS_ERROR_FAILURE; tempPath.SetLength(pathLen); GetTempPath(pathLen, (LPWSTR)tempPath.BeginWriting()); #elif defined(XP_MACOSX) nsCString tempPath; FSRef fsRef; OSErr err = FSFindFolder(kUserDomain, kTemporaryFolderType, kCreateFolder, &fsRef); if (err != noErr) return NS_ERROR_FAILURE; char path[PATH_MAX]; OSStatus status = FSRefMakePath(&fsRef, (UInt8*)path, PATH_MAX); if (status != noErr) return NS_ERROR_FAILURE; tempPath = path; #elif defined(__ANDROID__) // GeckoAppShell or Gonk's init.rc sets this in the environment const char *tempenv = PR_GetEnv("TMPDIR"); if (!tempenv) return NS_ERROR_FAILURE; nsCString tempPath(tempenv); #elif defined(XP_UNIX) // we assume it's always /tmp on unix systems nsCString tempPath = NS_LITERAL_CSTRING("/tmp/"); #else #error "Implement this for your platform" #endif #ifdef XP_MACOSX // Initialize spawn attributes, since this calls malloc. if (posix_spawnattr_init(&spawnattr) != 0) { return NS_ERROR_FAILURE; } // Set spawn attributes. size_t attr_count = ArrayLength(pref_cpu_types); size_t attr_ocount = 0; if (posix_spawnattr_setbinpref_np(&spawnattr, attr_count, pref_cpu_types, &attr_ocount) != 0 || attr_ocount != attr_count) { posix_spawnattr_destroy(&spawnattr); return NS_ERROR_FAILURE; } #endif #ifdef XP_WIN32 ReserveBreakpadVM(); MINIDUMP_TYPE minidump_type = MiniDumpNormal; // Try to determine what version of dbghelp.dll we're using. // MinidumpWithFullMemoryInfo is only available in 6.1.x or newer. DWORD version_size = GetFileVersionInfoSizeW(L"dbghelp.dll", NULL); if (version_size > 0) { std::vector buffer(version_size); if (GetFileVersionInfoW(L"dbghelp.dll", 0, version_size, &buffer[0])) { UINT len; VS_FIXEDFILEINFO* file_info; VerQueryValue(&buffer[0], L"\\", (void**)&file_info, &len); WORD major = HIWORD(file_info->dwFileVersionMS), minor = LOWORD(file_info->dwFileVersionMS), revision = HIWORD(file_info->dwFileVersionLS); if (major > 6 || (major == 6 && minor > 1) || (major == 6 && minor == 1 && revision >= 7600)) { minidump_type = MiniDumpWithFullMemoryInfo; } } } const char* e = PR_GetEnv("MOZ_CRASHREPORTER_FULLDUMP"); if (e && *e) { minidump_type = MiniDumpWithFullMemory; } #endif // XP_WIN32 #ifdef MOZ_WIDGET_ANDROID androidUserSerial = getenv("MOZ_ANDROID_USER_SERIAL_NUMBER"); #endif // now set the exception handler #ifdef XP_LINUX MinidumpDescriptor descriptor(tempPath.get()); #endif gExceptionHandler = new google_breakpad:: ExceptionHandler( #ifdef XP_LINUX descriptor, #else tempPath.get(), #endif #ifdef XP_WIN FPEFilter, #else Filter, #endif MinidumpCallback, nullptr, #ifdef XP_WIN32 google_breakpad::ExceptionHandler::HANDLER_ALL, minidump_type, (const wchar_t*) NULL, NULL); #else true #ifdef XP_MACOSX , NULL #endif #ifdef XP_LINUX , -1 #endif ); #endif // XP_WIN32 if (!gExceptionHandler) return NS_ERROR_OUT_OF_MEMORY; #ifdef XP_WIN gExceptionHandler->set_handle_debug_exceptions(true); // protect the crash reporter from being unloaded gBlockUnhandledExceptionFilter = true; gKernel32Intercept.Init("kernel32.dll"); bool ok = gKernel32Intercept.AddHook("SetUnhandledExceptionFilter", reinterpret_cast(patched_SetUnhandledExceptionFilter), (void**) &stub_SetUnhandledExceptionFilter); #ifdef DEBUG if (!ok) printf_stderr ("SetUnhandledExceptionFilter hook failed; crash reporter is vulnerable.\n"); #endif #endif // store application start time char timeString[32]; time_t startupTime = time(NULL); XP_TTOA(startupTime, timeString, 10); AnnotateCrashReport(NS_LITERAL_CSTRING("StartupTime"), nsDependentCString(timeString)); #if defined(XP_MACOSX) // On OS X, many testers like to see the OS crash reporting dialog // since it offers immediate stack traces. We allow them to set // a default to pass exceptions to the OS handler. Boolean keyExistsAndHasValidFormat = false; Boolean prefValue = ::CFPreferencesGetAppBooleanValue(CFSTR("OSCrashReporter"), kCFPreferencesCurrentApplication, &keyExistsAndHasValidFormat); if (keyExistsAndHasValidFormat) showOSCrashReporter = prefValue; #endif #if defined(MOZ_WIDGET_ANDROID) for (unsigned int i = 0; i < library_mappings.size(); i++) { u_int8_t guid[sizeof(MDGUID)]; google_breakpad::FileID::ElfFileIdentifierFromMappedFile((void const *)library_mappings[i].start_address, guid); gExceptionHandler->AddMappingInfo(library_mappings[i].name, guid, library_mappings[i].start_address, library_mappings[i].length, library_mappings[i].file_offset); } #endif mozalloc_set_oom_abort_handler(AnnotateOOMAllocationSize); return NS_OK; } bool GetEnabled() { return gExceptionHandler != nullptr; } bool GetMinidumpPath(nsAString& aPath) { if (!gExceptionHandler) return false; #ifndef XP_LINUX aPath = CONVERT_XP_CHAR_TO_UTF16(gExceptionHandler->dump_path().c_str()); #else aPath = CONVERT_XP_CHAR_TO_UTF16( gExceptionHandler->minidump_descriptor().directory().c_str()); #endif return true; } nsresult SetMinidumpPath(const nsAString& aPath) { if (!gExceptionHandler) return NS_ERROR_NOT_INITIALIZED; #ifndef XP_LINUX gExceptionHandler->set_dump_path( CONVERT_UTF16_TO_XP_CHAR(aPath).BeginReading()); #else gExceptionHandler->set_minidump_descriptor( MinidumpDescriptor(CONVERT_UTF16_TO_XP_CHAR(aPath).BeginReading())); #endif return NS_OK; } static nsresult WriteDataToFile(nsIFile* aFile, const nsACString& data) { PRFileDesc* fd; nsresult rv = aFile->OpenNSPRFileDesc(PR_WRONLY | PR_CREATE_FILE, 00600, &fd); NS_ENSURE_SUCCESS(rv, rv); rv = NS_OK; if (PR_Write(fd, data.Data(), data.Length()) == -1) { rv = NS_ERROR_FAILURE; } PR_Close(fd); return rv; } static nsresult GetFileContents(nsIFile* aFile, nsACString& data) { PRFileDesc* fd; nsresult rv = aFile->OpenNSPRFileDesc(PR_RDONLY, 0, &fd); NS_ENSURE_SUCCESS(rv, rv); rv = NS_OK; int32_t filesize = PR_Available(fd); if (filesize <= 0) { rv = NS_ERROR_FILE_NOT_FOUND; } else { data.SetLength(filesize); if (PR_Read(fd, data.BeginWriting(), filesize) == -1) { rv = NS_ERROR_FAILURE; } } PR_Close(fd); return rv; } // Function typedef for initializing a piece of data that we // don't already have. typedef nsresult (*InitDataFunc)(nsACString&); // Attempt to read aFile's contents into aContents, if aFile // does not exist, create it and initialize its contents // by calling aInitFunc for the data. static nsresult GetOrInit(nsIFile* aDir, const nsACString& filename, nsACString& aContents, InitDataFunc aInitFunc) { bool exists; nsCOMPtr dataFile; nsresult rv = aDir->Clone(getter_AddRefs(dataFile)); NS_ENSURE_SUCCESS(rv, rv); rv = dataFile->AppendNative(filename); NS_ENSURE_SUCCESS(rv, rv); rv = dataFile->Exists(&exists); NS_ENSURE_SUCCESS(rv, rv); if (!exists) { if (aInitFunc) { // get the initial value and write it to the file rv = aInitFunc(aContents); NS_ENSURE_SUCCESS(rv, rv); rv = WriteDataToFile(dataFile, aContents); } else { // didn't pass in an init func rv = NS_ERROR_FAILURE; } } else { // just get the file's contents rv = GetFileContents(dataFile, aContents); } return rv; } // Init the "install time" data. We're taking an easy way out here // and just setting this to "the time when this version was first run". static nsresult InitInstallTime(nsACString& aInstallTime) { time_t t = time(NULL); char buf[16]; sprintf(buf, "%ld", t); aInstallTime = buf; return NS_OK; } // Annotate the crash report with a Unique User ID and time // since install. Also do some prep work for recording // time since last crash, which must be calculated at // crash time. // If any piece of data doesn't exist, initialize it first. nsresult SetupExtraData(nsIFile* aAppDataDirectory, const nsACString& aBuildID) { nsCOMPtr dataDirectory; nsresult rv = aAppDataDirectory->Clone(getter_AddRefs(dataDirectory)); NS_ENSURE_SUCCESS(rv, rv); rv = dataDirectory->AppendNative(NS_LITERAL_CSTRING("Crash Reports")); NS_ENSURE_SUCCESS(rv, rv); bool exists; rv = dataDirectory->Exists(&exists); NS_ENSURE_SUCCESS(rv, rv); if (!exists) { rv = dataDirectory->Create(nsIFile::DIRECTORY_TYPE, 0700); NS_ENSURE_SUCCESS(rv, rv); } #if defined(XP_WIN32) nsAutoString dataDirEnv(NS_LITERAL_STRING("MOZ_CRASHREPORTER_DATA_DIRECTORY=")); nsAutoString dataDirectoryPath; rv = dataDirectory->GetPath(dataDirectoryPath); NS_ENSURE_SUCCESS(rv, rv); dataDirEnv.Append(dataDirectoryPath); _wputenv(dataDirEnv.get()); #else // Save this path in the environment for the crash reporter application. nsAutoCString dataDirEnv("MOZ_CRASHREPORTER_DATA_DIRECTORY="); nsAutoCString dataDirectoryPath; rv = dataDirectory->GetNativePath(dataDirectoryPath); NS_ENSURE_SUCCESS(rv, rv); dataDirEnv.Append(dataDirectoryPath); char* env = ToNewCString(dataDirEnv); NS_ENSURE_TRUE(env, NS_ERROR_OUT_OF_MEMORY); PR_SetEnv(env); #endif nsAutoCString data; if(NS_SUCCEEDED(GetOrInit(dataDirectory, NS_LITERAL_CSTRING("InstallTime") + aBuildID, data, InitInstallTime))) AnnotateCrashReport(NS_LITERAL_CSTRING("InstallTime"), data); // this is a little different, since we can't init it with anything, // since it's stored at crash time, and we can't annotate the // crash report with the stored value, since we really want // (now - LastCrash), so we just get a value if it exists, // and store it in a time_t value. if(NS_SUCCEEDED(GetOrInit(dataDirectory, NS_LITERAL_CSTRING("LastCrash"), data, NULL))) { lastCrashTime = (time_t)atol(data.get()); } // not really the best place to init this, but I have the path I need here nsCOMPtr lastCrashFile; rv = dataDirectory->Clone(getter_AddRefs(lastCrashFile)); NS_ENSURE_SUCCESS(rv, rv); rv = lastCrashFile->AppendNative(NS_LITERAL_CSTRING("LastCrash")); NS_ENSURE_SUCCESS(rv, rv); memset(lastCrashTimeFilename, 0, sizeof(lastCrashTimeFilename)); #if defined(XP_WIN32) nsAutoString filename; rv = lastCrashFile->GetPath(filename); NS_ENSURE_SUCCESS(rv, rv); if (filename.Length() < XP_PATH_MAX) wcsncpy(lastCrashTimeFilename, filename.get(), filename.Length()); #else nsAutoCString filename; rv = lastCrashFile->GetNativePath(filename); NS_ENSURE_SUCCESS(rv, rv); if (filename.Length() < XP_PATH_MAX) strncpy(lastCrashTimeFilename, filename.get(), filename.Length()); #endif if (headlessClient) { nsCOMPtr markerFile; rv = dataDirectory->Clone(getter_AddRefs(markerFile)); NS_ENSURE_SUCCESS(rv, rv); rv = markerFile->AppendNative(NS_LITERAL_CSTRING("LastCrashFilename")); NS_ENSURE_SUCCESS(rv, rv); memset(crashMarkerFilename, 0, sizeof(crashMarkerFilename)); #if defined(XP_WIN32) nsAutoString markerFilename; rv = markerFile->GetPath(markerFilename); NS_ENSURE_SUCCESS(rv, rv); if (markerFilename.Length() < XP_PATH_MAX) wcsncpy(crashMarkerFilename, markerFilename.get(), markerFilename.Length()); #else nsAutoCString markerFilename; rv = markerFile->GetNativePath(markerFilename); NS_ENSURE_SUCCESS(rv, rv); if (markerFilename.Length() < XP_PATH_MAX) strncpy(crashMarkerFilename, markerFilename.get(), markerFilename.Length()); #endif } return NS_OK; } static void OOPDeinit(); nsresult UnsetExceptionHandler() { #ifdef XP_WIN // allow SetUnhandledExceptionFilter gBlockUnhandledExceptionFilter = false; #endif delete gExceptionHandler; // do this here in the unlikely case that we succeeded in allocating // our strings but failed to allocate gExceptionHandler. delete crashReporterAPIData_Hash; crashReporterAPIData_Hash = nullptr; delete crashReporterAPILock; crashReporterAPILock = nullptr; delete notesFieldLock; notesFieldLock = nullptr; delete crashReporterAPIData; crashReporterAPIData = nullptr; delete notesField; notesField = nullptr; delete lastRunCrashID; lastRunCrashID = nullptr; if (pendingDirectory) { NS_Free(pendingDirectory); pendingDirectory = nullptr; } if (crashReporterPath) { NS_Free(crashReporterPath); crashReporterPath = nullptr; } #ifdef XP_MACOSX posix_spawnattr_destroy(&spawnattr); #endif if (!gExceptionHandler) return NS_ERROR_NOT_INITIALIZED; gExceptionHandler = nullptr; OOPDeinit(); return NS_OK; } static void ReplaceChar(nsCString& str, const nsACString& character, const nsACString& replacement) { nsCString::const_iterator start, end; str.BeginReading(start); str.EndReading(end); while (FindInReadable(character, start, end)) { int32_t pos = end.size_backward(); str.Replace(pos - 1, 1, replacement); str.BeginReading(start); start.advance(pos + replacement.Length() - 1); str.EndReading(end); } } static bool DoFindInReadable(const nsACString& str, const nsACString& value) { nsACString::const_iterator start, end; str.BeginReading(start); str.EndReading(end); return FindInReadable(value, start, end); } static PLDHashOperator EnumerateEntries(const nsACString& key, nsCString entry, void* userData) { crashReporterAPIData->Append(key + NS_LITERAL_CSTRING("=") + entry + NS_LITERAL_CSTRING("\n")); return PL_DHASH_NEXT; } // This function is miscompiled with MSVC 2005/2008 when PGO is on. #ifdef _MSC_VER #pragma optimize("", off) #endif static nsresult EscapeAnnotation(const nsACString& key, const nsACString& data, nsCString& escapedData) { if (DoFindInReadable(key, NS_LITERAL_CSTRING("=")) || DoFindInReadable(key, NS_LITERAL_CSTRING("\n"))) return NS_ERROR_INVALID_ARG; if (DoFindInReadable(data, NS_LITERAL_CSTRING("\0"))) return NS_ERROR_INVALID_ARG; escapedData = data; // escape backslashes ReplaceChar(escapedData, NS_LITERAL_CSTRING("\\"), NS_LITERAL_CSTRING("\\\\")); // escape newlines ReplaceChar(escapedData, NS_LITERAL_CSTRING("\n"), NS_LITERAL_CSTRING("\\n")); return NS_OK; } #ifdef _MSC_VER #pragma optimize("", on) #endif class DelayedNote { public: DelayedNote(const nsACString& aKey, const nsACString& aData) : mKey(aKey), mData(aData), mType(Annotation) {} DelayedNote(const nsACString& aData) : mData(aData), mType(AppNote) {} void Run() { if (mType == Annotation) { AnnotateCrashReport(mKey, mData); } else { AppendAppNotesToCrashReport(mData); } } private: nsCString mKey; nsCString mData; enum AnnotationType { Annotation, AppNote } mType; }; static void EnqueueDelayedNote(DelayedNote* aNote) { if (!gDelayedAnnotations) { gDelayedAnnotations = new nsTArray >(); } gDelayedAnnotations->AppendElement(aNote); } nsresult AnnotateCrashReport(const nsACString& key, const nsACString& data) { if (!GetEnabled()) return NS_ERROR_NOT_INITIALIZED; nsCString escapedData; nsresult rv = EscapeAnnotation(key, data, escapedData); if (NS_FAILED(rv)) return rv; if (XRE_GetProcessType() != GeckoProcessType_Default) { if (!NS_IsMainThread()) { NS_ERROR("Cannot call AnnotateCrashReport in child processes from non-main thread."); return NS_ERROR_FAILURE; } PCrashReporterChild* reporter = CrashReporterChild::GetCrashReporter(); if (!reporter) { EnqueueDelayedNote(new DelayedNote(key, data)); return NS_OK; } if (!reporter->SendAnnotateCrashReport(nsCString(key), escapedData)) return NS_ERROR_FAILURE; return NS_OK; } MutexAutoLock lock(*crashReporterAPILock); crashReporterAPIData_Hash->Put(key, escapedData); // now rebuild the file contents crashReporterAPIData->Truncate(0); crashReporterAPIData_Hash->EnumerateRead(EnumerateEntries, crashReporterAPIData); return NS_OK; } nsresult SetGarbageCollecting(bool collecting) { if (!GetEnabled()) return NS_ERROR_NOT_INITIALIZED; isGarbageCollecting = collecting; return NS_OK; } nsresult AppendAppNotesToCrashReport(const nsACString& data) { if (!GetEnabled()) return NS_ERROR_NOT_INITIALIZED; if (DoFindInReadable(data, NS_LITERAL_CSTRING("\0"))) return NS_ERROR_INVALID_ARG; if (XRE_GetProcessType() != GeckoProcessType_Default) { if (!NS_IsMainThread()) { NS_ERROR("Cannot call AnnotateCrashReport in child processes from non-main thread."); return NS_ERROR_FAILURE; } PCrashReporterChild* reporter = CrashReporterChild::GetCrashReporter(); if (!reporter) { EnqueueDelayedNote(new DelayedNote(data)); return NS_OK; } // Since we don't go through AnnotateCrashReport in the parent process, // we must ensure that the data is escaped and valid before the parent // sees it. nsCString escapedData; nsresult rv = EscapeAnnotation(NS_LITERAL_CSTRING("Notes"), data, escapedData); if (NS_FAILED(rv)) return rv; if (!reporter->SendAppendAppNotes(escapedData)) return NS_ERROR_FAILURE; return NS_OK; } MutexAutoLock lock(*notesFieldLock); notesField->Append(data); return AnnotateCrashReport(NS_LITERAL_CSTRING("Notes"), *notesField); } // Returns true if found, false if not found. bool GetAnnotation(const nsACString& key, nsACString& data) { if (!gExceptionHandler) return false; nsAutoCString entry; if (!crashReporterAPIData_Hash->Get(key, &entry)) return false; data = entry; return true; } nsresult RegisterAppMemory(void* ptr, size_t length) { if (!GetEnabled()) return NS_ERROR_NOT_INITIALIZED; #if defined(XP_LINUX) || defined(XP_WIN32) gExceptionHandler->RegisterAppMemory(ptr, length); return NS_OK; #else return NS_ERROR_NOT_IMPLEMENTED; #endif } nsresult UnregisterAppMemory(void* ptr) { if (!GetEnabled()) return NS_ERROR_NOT_INITIALIZED; #if defined(XP_LINUX) || defined(XP_WIN32) gExceptionHandler->UnregisterAppMemory(ptr); return NS_OK; #else return NS_ERROR_NOT_IMPLEMENTED; #endif } bool GetServerURL(nsACString& aServerURL) { if (!gExceptionHandler) return false; return GetAnnotation(NS_LITERAL_CSTRING("ServerURL"), aServerURL); } nsresult SetServerURL(const nsACString& aServerURL) { // store server URL with the API data // the client knows to handle this specially return AnnotateCrashReport(NS_LITERAL_CSTRING("ServerURL"), aServerURL); } nsresult SetRestartArgs(int argc, char** argv) { if (!gExceptionHandler) return NS_OK; int i; nsAutoCString envVar; char *env; char *argv0 = getenv("MOZ_APP_LAUNCHER"); for (i = 0; i < argc; i++) { envVar = "MOZ_CRASHREPORTER_RESTART_ARG_"; envVar.AppendInt(i); envVar += "="; if (argv0 && i == 0) { // Is there a request to suppress default binary launcher? envVar += argv0; } else { envVar += argv[i]; } // PR_SetEnv() wants the string to be available for the lifetime // of the app, so dup it here env = ToNewCString(envVar); if (!env) return NS_ERROR_OUT_OF_MEMORY; PR_SetEnv(env); } // make sure the arg list is terminated envVar = "MOZ_CRASHREPORTER_RESTART_ARG_"; envVar.AppendInt(i); envVar += "="; // PR_SetEnv() wants the string to be available for the lifetime // of the app, so dup it here env = ToNewCString(envVar); if (!env) return NS_ERROR_OUT_OF_MEMORY; PR_SetEnv(env); // make sure we save the info in XUL_APP_FILE for the reporter const char *appfile = PR_GetEnv("XUL_APP_FILE"); if (appfile && *appfile) { envVar = "MOZ_CRASHREPORTER_RESTART_XUL_APP_FILE="; envVar += appfile; env = ToNewCString(envVar); PR_SetEnv(env); } return NS_OK; } #ifdef XP_WIN32 nsresult WriteMinidumpForException(EXCEPTION_POINTERS* aExceptionInfo) { if (!gExceptionHandler) return NS_ERROR_NOT_INITIALIZED; return gExceptionHandler->WriteMinidumpForException(aExceptionInfo) ? NS_OK : NS_ERROR_FAILURE; } #endif #ifdef XP_MACOSX nsresult AppendObjCExceptionInfoToAppNotes(void *inException) { nsAutoCString excString; GetObjCExceptionInfo(inException, excString); AppendAppNotesToCrashReport(excString); return NS_OK; } #endif /* * Combined code to get/set the crash reporter submission pref on * different platforms. */ static nsresult PrefSubmitReports(bool* aSubmitReports, bool writePref) { nsresult rv; #if defined(XP_WIN32) /* * NOTE! This needs to stay in sync with the preference checking code * in toolkit/crashreporter/client/crashreporter_win.cpp */ nsCOMPtr appinfo = do_GetService("@mozilla.org/xre/app-info;1", &rv); NS_ENSURE_SUCCESS(rv, rv); nsAutoCString appVendor, appName; rv = appinfo->GetVendor(appVendor); NS_ENSURE_SUCCESS(rv, rv); rv = appinfo->GetName(appName); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr regKey (do_CreateInstance("@mozilla.org/windows-registry-key;1", &rv)); NS_ENSURE_SUCCESS(rv, rv); nsAutoCString regPath; regPath.AppendLiteral("Software\\"); // We need to ensure the registry keys are created so we can properly // write values to it // Create appVendor key if(!appVendor.IsEmpty()) { regPath.Append(appVendor); regKey->Create(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, NS_ConvertUTF8toUTF16(regPath), nsIWindowsRegKey::ACCESS_SET_VALUE); regPath.AppendLiteral("\\"); } // Create appName key regPath.Append(appName); regKey->Create(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, NS_ConvertUTF8toUTF16(regPath), nsIWindowsRegKey::ACCESS_SET_VALUE); regPath.AppendLiteral("\\"); // Create Crash Reporter key regPath.AppendLiteral("Crash Reporter"); regKey->Create(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, NS_ConvertUTF8toUTF16(regPath), nsIWindowsRegKey::ACCESS_SET_VALUE); // If we're saving the pref value, just write it to ROOT_KEY_CURRENT_USER // and we're done. if (writePref) { rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, NS_ConvertUTF8toUTF16(regPath), nsIWindowsRegKey::ACCESS_SET_VALUE); NS_ENSURE_SUCCESS(rv, rv); uint32_t value = *aSubmitReports ? 1 : 0; rv = regKey->WriteIntValue(NS_LITERAL_STRING("SubmitCrashReport"), value); regKey->Close(); return rv; } // We're reading the pref value, so we need to first look under // ROOT_KEY_LOCAL_MACHINE to see if it's set there, and then fall back to // ROOT_KEY_CURRENT_USER. If it's not set in either place, the pref defaults // to "true". uint32_t value; rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_LOCAL_MACHINE, NS_ConvertUTF8toUTF16(regPath), nsIWindowsRegKey::ACCESS_QUERY_VALUE); if (NS_SUCCEEDED(rv)) { rv = regKey->ReadIntValue(NS_LITERAL_STRING("SubmitCrashReport"), &value); regKey->Close(); if (NS_SUCCEEDED(rv)) { *aSubmitReports = !!value; return NS_OK; } } rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, NS_ConvertUTF8toUTF16(regPath), nsIWindowsRegKey::ACCESS_QUERY_VALUE); if (NS_FAILED(rv)) { *aSubmitReports = true; return NS_OK; } rv = regKey->ReadIntValue(NS_LITERAL_STRING("SubmitCrashReport"), &value); // default to true on failure if (NS_FAILED(rv)) { value = 1; rv = NS_OK; } regKey->Close(); *aSubmitReports = !!value; return NS_OK; #elif defined(XP_MACOSX) rv = NS_OK; if (writePref) { CFPropertyListRef cfValue = (CFPropertyListRef)(*aSubmitReports ? kCFBooleanTrue : kCFBooleanFalse); ::CFPreferencesSetAppValue(CFSTR("submitReport"), cfValue, reporterClientAppID); if (!::CFPreferencesAppSynchronize(reporterClientAppID)) rv = NS_ERROR_FAILURE; } else { *aSubmitReports = true; Boolean keyExistsAndHasValidFormat = false; Boolean prefValue = ::CFPreferencesGetAppBooleanValue(CFSTR("submitReport"), reporterClientAppID, &keyExistsAndHasValidFormat); if (keyExistsAndHasValidFormat) *aSubmitReports = !!prefValue; } return rv; #elif defined(XP_UNIX) /* * NOTE! This needs to stay in sync with the preference checking code * in toolkit/crashreporter/client/crashreporter_linux.cpp */ nsCOMPtr reporterINI; rv = NS_GetSpecialDirectory("UAppData", getter_AddRefs(reporterINI)); NS_ENSURE_SUCCESS(rv, rv); reporterINI->AppendNative(NS_LITERAL_CSTRING("Crash Reports")); reporterINI->AppendNative(NS_LITERAL_CSTRING("crashreporter.ini")); bool exists; rv = reporterINI->Exists(&exists); NS_ENSURE_SUCCESS(rv, rv); if (!exists) { if (!writePref) { // If reading the pref, default to true if .ini doesn't exist. *aSubmitReports = true; return NS_OK; } // Create the file so the INI processor can write to it. rv = reporterINI->Create(nsIFile::NORMAL_FILE_TYPE, 0600); NS_ENSURE_SUCCESS(rv, rv); } nsCOMPtr iniFactory = do_GetService("@mozilla.org/xpcom/ini-processor-factory;1", &rv); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr iniParser; rv = iniFactory->CreateINIParser(reporterINI, getter_AddRefs(iniParser)); NS_ENSURE_SUCCESS(rv, rv); // If we're writing the pref, just set and we're done. if (writePref) { nsCOMPtr iniWriter = do_QueryInterface(iniParser); NS_ENSURE_TRUE(iniWriter, NS_ERROR_FAILURE); rv = iniWriter->SetString(NS_LITERAL_CSTRING("Crash Reporter"), NS_LITERAL_CSTRING("SubmitReport"), *aSubmitReports ? NS_LITERAL_CSTRING("1") : NS_LITERAL_CSTRING("0")); NS_ENSURE_SUCCESS(rv, rv); rv = iniWriter->WriteFile(NULL, 0); return rv; } nsAutoCString submitReportValue; rv = iniParser->GetString(NS_LITERAL_CSTRING("Crash Reporter"), NS_LITERAL_CSTRING("SubmitReport"), submitReportValue); // Default to "true" if the pref can't be found. if (NS_FAILED(rv)) *aSubmitReports = true; else if (submitReportValue.EqualsASCII("0")) *aSubmitReports = false; else *aSubmitReports = true; return NS_OK; #else return NS_ERROR_NOT_IMPLEMENTED; #endif } nsresult GetSubmitReports(bool* aSubmitReports) { return PrefSubmitReports(aSubmitReports, false); } nsresult SetSubmitReports(bool aSubmitReports) { nsresult rv; nsCOMPtr obsServ = mozilla::services::GetObserverService(); if (!obsServ) { return NS_ERROR_FAILURE; } rv = PrefSubmitReports(&aSubmitReports, true); if (NS_FAILED(rv)) { return rv; } obsServ->NotifyObservers(nullptr, "submit-reports-pref-changed", nullptr); return NS_OK; } static void FindPendingDir() { if (pendingDirectory) return; nsCOMPtr pendingDir; nsresult rv = NS_GetSpecialDirectory("UAppData", getter_AddRefs(pendingDir)); if (NS_FAILED(rv)) { NS_WARNING("Couldn't get the user appdata directory, crash dumps will go in an unusual location"); } else { pendingDir->Append(NS_LITERAL_STRING("Crash Reports")); pendingDir->Append(NS_LITERAL_STRING("pending")); #ifdef XP_WIN nsString path; pendingDir->GetPath(path); pendingDirectory = ToNewUnicode(path); #else nsCString path; pendingDir->GetNativePath(path); pendingDirectory = ToNewCString(path); #endif } } // The "pending" dir is Crash Reports/pending, from which minidumps // can be submitted. Because this method may be called off the main thread, // we store the pending directory as a path. static bool GetPendingDir(nsIFile** dir) { MOZ_ASSERT(OOPInitialized()); if (!pendingDirectory) { return false; } nsCOMPtr pending = do_CreateInstance(NS_LOCAL_FILE_CONTRACTID); if (!pending) { NS_WARNING("Can't set up pending directory during shutdown."); return false; } #ifdef XP_WIN pending->InitWithPath(nsDependentString(pendingDirectory)); #else pending->InitWithNativePath(nsDependentCString(pendingDirectory)); #endif pending.swap(*dir); return true; } // The "limbo" dir is where minidumps go to wait for something else to // use them. If we're |ShouldReport()|, then the "something else" is // a minidump submitter, and they're coming from the // Crash Reports/pending/ dir. Otherwise, we don't know what the // "somthing else" is, but the minidumps stay in [profile]/minidumps/ // limbo. static bool GetMinidumpLimboDir(nsIFile** dir) { if (ShouldReport()) { return GetPendingDir(dir); } else { #ifndef XP_LINUX CreateFileFromPath(gExceptionHandler->dump_path(), dir); #else CreateFileFromPath(gExceptionHandler->minidump_descriptor().directory(), dir); #endif return NULL != *dir; } } bool GetMinidumpForID(const nsAString& id, nsIFile** minidump) { if (!GetMinidumpLimboDir(minidump)) return false; (*minidump)->Append(id + NS_LITERAL_STRING(".dmp")); return true; } bool GetIDFromMinidump(nsIFile* minidump, nsAString& id) { if (NS_SUCCEEDED(minidump->GetLeafName(id))) { id.Replace(id.Length() - 4, 4, NS_LITERAL_STRING("")); return true; } return false; } bool GetExtraFileForID(const nsAString& id, nsIFile** extraFile) { if (!GetMinidumpLimboDir(extraFile)) return false; (*extraFile)->Append(id + NS_LITERAL_STRING(".extra")); return true; } bool GetExtraFileForMinidump(nsIFile* minidump, nsIFile** extraFile) { nsAutoString leafName; nsresult rv = minidump->GetLeafName(leafName); if (NS_FAILED(rv)) return false; nsCOMPtr extraF; rv = minidump->Clone(getter_AddRefs(extraF)); if (NS_FAILED(rv)) return false; leafName.Replace(leafName.Length() - 3, 3, NS_LITERAL_STRING("extra")); rv = extraF->SetLeafName(leafName); if (NS_FAILED(rv)) return false; *extraFile = NULL; extraF.swap(*extraFile); return true; } bool AppendExtraData(const nsAString& id, const AnnotationTable& data) { nsCOMPtr extraFile; if (!GetExtraFileForID(id, getter_AddRefs(extraFile))) return false; return AppendExtraData(extraFile, data); } //----------------------------------------------------------------------------- // Helpers for AppendExtraData() // struct Blacklist { Blacklist() : mItems(NULL), mLen(0) { } Blacklist(const char** items, int len) : mItems(items), mLen(len) { } bool Contains(const nsACString& key) const { for (int i = 0; i < mLen; ++i) if (key.EqualsASCII(mItems[i])) return true; return false; } const char** mItems; const int mLen; }; struct EnumerateAnnotationsContext { const Blacklist& blacklist; PRFileDesc* fd; }; static void WriteAnnotation(PRFileDesc* fd, const nsACString& key, const nsACString& value) { PR_Write(fd, key.BeginReading(), key.Length()); PR_Write(fd, "=", 1); PR_Write(fd, value.BeginReading(), value.Length()); PR_Write(fd, "\n", 1); } static PLDHashOperator EnumerateAnnotations(const nsACString& key, nsCString entry, void* userData) { EnumerateAnnotationsContext* ctx = static_cast(userData); const Blacklist& blacklist = ctx->blacklist; // skip entries in the blacklist if (blacklist.Contains(key)) return PL_DHASH_NEXT; WriteAnnotation(ctx->fd, key, entry); return PL_DHASH_NEXT; } static bool WriteExtraData(nsIFile* extraFile, const AnnotationTable& data, const Blacklist& blacklist, bool writeCrashTime=false, bool truncate=false) { PRFileDesc* fd; int truncOrAppend = truncate ? PR_TRUNCATE : PR_APPEND; nsresult rv = extraFile->OpenNSPRFileDesc(PR_WRONLY | PR_CREATE_FILE | truncOrAppend, 0600, &fd); if (NS_FAILED(rv)) return false; EnumerateAnnotationsContext ctx = { blacklist, fd }; data.EnumerateRead(EnumerateAnnotations, &ctx); if (writeCrashTime) { time_t crashTime = time(NULL); char crashTimeString[32]; XP_TTOA(crashTime, crashTimeString, 10); WriteAnnotation(fd, nsDependentCString("CrashTime"), nsDependentCString(crashTimeString)); } PR_Close(fd); return true; } bool AppendExtraData(nsIFile* extraFile, const AnnotationTable& data) { return WriteExtraData(extraFile, data, Blacklist()); } static bool WriteExtraForMinidump(nsIFile* minidump, const Blacklist& blacklist, nsIFile** extraFile) { nsCOMPtr extra; if (!GetExtraFileForMinidump(minidump, getter_AddRefs(extra))) return false; if (!WriteExtraData(extra, *crashReporterAPIData_Hash, blacklist, true /*write crash time*/, true /*truncate*/)) return false; *extraFile = NULL; extra.swap(*extraFile); return true; } // It really only makes sense to call this function when // ShouldReport() is true. static bool MoveToPending(nsIFile* dumpFile, nsIFile* extraFile) { nsCOMPtr pendingDir; if (!GetPendingDir(getter_AddRefs(pendingDir))) return false; if (NS_FAILED(dumpFile->MoveTo(pendingDir, EmptyString()))) { return false; } if (extraFile && NS_FAILED(extraFile->MoveTo(pendingDir, EmptyString()))) { return false; } return true; } static void OnChildProcessDumpRequested(void* aContext, #ifdef XP_MACOSX const ClientInfo& aClientInfo, const xpstring& aFilePath #else const ClientInfo* aClientInfo, const xpstring* aFilePath #endif ) { nsCOMPtr minidump; nsCOMPtr extraFile; CreateFileFromPath( #ifdef XP_MACOSX aFilePath, #else *aFilePath, #endif getter_AddRefs(minidump)); if (!WriteExtraForMinidump(minidump, Blacklist(kSubprocessBlacklist, ArrayLength(kSubprocessBlacklist)), getter_AddRefs(extraFile))) return; if (ShouldReport()) MoveToPending(minidump, extraFile); { uint32_t pid = #ifdef XP_MACOSX aClientInfo.pid(); #else aClientInfo->pid(); #endif #ifdef MOZ_CRASHREPORTER_INJECTOR bool runCallback; #endif { MutexAutoLock lock(*dumpMapLock); ChildProcessData* pd = pidToMinidump->PutEntry(pid); MOZ_ASSERT(!pd->minidump); pd->minidump = minidump; pd->sequence = ++crashSequence; #ifdef MOZ_CRASHREPORTER_INJECTOR runCallback = NULL != pd->callback; #endif } #ifdef MOZ_CRASHREPORTER_INJECTOR if (runCallback) NS_DispatchToMainThread(new ReportInjectedCrash(pid)); #endif } } static bool OOPInitialized() { return pidToMinidump != NULL; } #ifdef XP_MACOSX static bool ChildFilter(void *context) { mozilla::DisableWritePoisoning(); return true; } #endif void OOPInit() { if (OOPInitialized()) return; MOZ_ASSERT(NS_IsMainThread()); NS_ABORT_IF_FALSE(gExceptionHandler != NULL, "attempt to initialize OOP crash reporter before in-process crashreporter!"); #if defined(XP_WIN) childCrashNotifyPipe = PR_smprintf("\\\\.\\pipe\\gecko-crash-server-pipe.%i", static_cast(::GetCurrentProcessId())); const std::wstring dumpPath = gExceptionHandler->dump_path(); crashServer = new CrashGenerationServer( NS_ConvertASCIItoUTF16(childCrashNotifyPipe).get(), NULL, // default security attributes NULL, NULL, // we don't care about process connect here OnChildProcessDumpRequested, NULL, NULL, NULL, // we don't care about process exit here NULL, NULL, // we don't care about upload request here true, // automatically generate dumps &dumpPath); #elif defined(XP_LINUX) if (!CrashGenerationServer::CreateReportChannel(&serverSocketFd, &clientSocketFd)) NS_RUNTIMEABORT("can't create crash reporter socketpair()"); const std::string dumpPath = gExceptionHandler->minidump_descriptor().directory(); crashServer = new CrashGenerationServer( serverSocketFd, OnChildProcessDumpRequested, NULL, NULL, NULL, // we don't care about process exit here true, &dumpPath); #elif defined(XP_MACOSX) childCrashNotifyPipe = PR_smprintf("gecko-crash-server-pipe.%i", static_cast(getpid())); const std::string dumpPath = gExceptionHandler->dump_path(); crashServer = new CrashGenerationServer( childCrashNotifyPipe, ChildFilter, NULL, OnChildProcessDumpRequested, NULL, NULL, NULL, true, // automatically generate dumps dumpPath); #endif if (!crashServer->Start()) NS_RUNTIMEABORT("can't start crash reporter server()"); pidToMinidump = new ChildMinidumpMap(); pidToMinidump->Init(); dumpMapLock = new Mutex("CrashReporter::dumpMapLock"); FindPendingDir(); } static void OOPDeinit() { if (!OOPInitialized()) { NS_WARNING("OOPDeinit() without successful OOPInit()"); return; } #ifdef MOZ_CRASHREPORTER_INJECTOR if (sInjectorThread) { sInjectorThread->Shutdown(); NS_RELEASE(sInjectorThread); } #endif delete crashServer; crashServer = NULL; delete dumpMapLock; dumpMapLock = NULL; delete pidToMinidump; pidToMinidump = NULL; #if defined(XP_WIN) PR_Free(childCrashNotifyPipe); childCrashNotifyPipe = NULL; #endif } #if defined(XP_WIN) || defined(XP_MACOSX) // Parent-side API for children const char* GetChildNotificationPipe() { if (!GetEnabled()) return kNullNotifyPipe; MOZ_ASSERT(OOPInitialized()); return childCrashNotifyPipe; } #endif #ifdef MOZ_CRASHREPORTER_INJECTOR void InjectCrashReporterIntoProcess(DWORD processID, InjectorCrashCallback* cb) { if (!GetEnabled()) return; if (!OOPInitialized()) OOPInit(); if (!sInjectorThread) { if (NS_FAILED(NS_NewThread(&sInjectorThread))) return; } { MutexAutoLock lock(*dumpMapLock); ChildProcessData* pd = pidToMinidump->PutEntry(processID); MOZ_ASSERT(!pd->minidump && !pd->callback); pd->callback = cb; } nsCOMPtr r = new InjectCrashRunnable(processID); sInjectorThread->Dispatch(r, nsIEventTarget::DISPATCH_NORMAL); } NS_IMETHODIMP ReportInjectedCrash::Run() { // Crash reporting may have been disabled after this method was dispatched if (!OOPInitialized()) return NS_OK; InjectorCrashCallback* cb; { MutexAutoLock lock(*dumpMapLock); ChildProcessData* pd = pidToMinidump->GetEntry(mPID); if (!pd || !pd->callback) return NS_OK; MOZ_ASSERT(pd->minidump); cb = pd->callback; } cb->OnCrash(mPID); return NS_OK; } void UnregisterInjectorCallback(DWORD processID) { if (!OOPInitialized()) return; MutexAutoLock lock(*dumpMapLock); pidToMinidump->RemoveEntry(processID); } #endif // MOZ_CRASHREPORTER_INJECTOR bool CheckForLastRunCrash() { if (lastRunCrashID) return true; // The exception handler callback leaves the filename of the // last minidump in a known file. nsCOMPtr lastCrashFile; CreateFileFromPath(crashMarkerFilename, getter_AddRefs(lastCrashFile)); bool exists; if (NS_FAILED(lastCrashFile->Exists(&exists)) || !exists) { return false; } nsAutoCString lastMinidump_contents; if (NS_FAILED(GetFileContents(lastCrashFile, lastMinidump_contents))) { return false; } lastCrashFile->Remove(false); #ifdef XP_WIN // Ugly but effective. nsDependentString lastMinidump( reinterpret_cast(lastMinidump_contents.get())); #else nsAutoCString lastMinidump = lastMinidump_contents; #endif nsCOMPtr lastMinidumpFile; CreateFileFromPath(lastMinidump.get(), getter_AddRefs(lastMinidumpFile)); if (!lastMinidumpFile || NS_FAILED(lastMinidumpFile->Exists(&exists)) || !exists) { return false; } nsCOMPtr lastExtraFile; if (!GetExtraFileForMinidump(lastMinidumpFile, getter_AddRefs(lastExtraFile))) { return false; } FindPendingDir(); // Move {dump,extra} to pending folder if (!MoveToPending(lastMinidumpFile, lastExtraFile)) { return false; } lastRunCrashID = new nsString(); return GetIDFromMinidump(lastMinidumpFile, *lastRunCrashID); } bool GetLastRunCrashID(nsAString& id) { if (!lastRunCrashID_checked) { CheckForLastRunCrash(); lastRunCrashID_checked = true; } if (!lastRunCrashID) { return false; } id = *lastRunCrashID; return true; } #if defined(XP_WIN) // Child-side API bool SetRemoteExceptionHandler(const nsACString& crashPipe) { // crash reporting is disabled if (crashPipe.Equals(kNullNotifyPipe)) return true; NS_ABORT_IF_FALSE(!gExceptionHandler, "crash client already init'd"); gExceptionHandler = new google_breakpad:: ExceptionHandler(L"", FPEFilter, NULL, // no minidump callback NULL, // no callback context google_breakpad::ExceptionHandler::HANDLER_ALL, MiniDumpNormal, NS_ConvertASCIItoUTF16(crashPipe).BeginReading(), NULL); #ifdef XP_WIN gExceptionHandler->set_handle_debug_exceptions(true); #endif // we either do remote or nothing, no fallback to regular crash reporting return gExceptionHandler->IsOutOfProcess(); } //-------------------------------------------------- #elif defined(XP_LINUX) // Parent-side API for children bool CreateNotificationPipeForChild(int* childCrashFd, int* childCrashRemapFd) { if (!GetEnabled()) { *childCrashFd = -1; *childCrashRemapFd = -1; return true; } MOZ_ASSERT(OOPInitialized()); *childCrashFd = clientSocketFd; *childCrashRemapFd = kMagicChildCrashReportFd; return true; } // Child-side API bool SetRemoteExceptionHandler() { NS_ABORT_IF_FALSE(!gExceptionHandler, "crash client already init'd"); #ifndef XP_LINUX xpstring path = ""; #else // MinidumpDescriptor requires a non-empty path. google_breakpad::MinidumpDescriptor path("."); #endif gExceptionHandler = new google_breakpad:: ExceptionHandler(path, NULL, // no filter callback NULL, // no minidump callback NULL, // no callback context true, // install signal handlers kMagicChildCrashReportFd); if (gDelayedAnnotations) { for (uint32_t i = 0; i < gDelayedAnnotations->Length(); i++) { gDelayedAnnotations->ElementAt(i)->Run(); } delete gDelayedAnnotations; } // we either do remote or nothing, no fallback to regular crash reporting return gExceptionHandler->IsOutOfProcess(); } //-------------------------------------------------- #elif defined(XP_MACOSX) // Child-side API bool SetRemoteExceptionHandler(const nsACString& crashPipe) { // crash reporting is disabled if (crashPipe.Equals(kNullNotifyPipe)) return true; NS_ABORT_IF_FALSE(!gExceptionHandler, "crash client already init'd"); gExceptionHandler = new google_breakpad:: ExceptionHandler("", Filter, NULL, // no minidump callback NULL, // no callback context true, // install signal handlers crashPipe.BeginReading()); // we either do remote or nothing, no fallback to regular crash reporting return gExceptionHandler->IsOutOfProcess(); } #endif // XP_WIN bool TakeMinidumpForChild(uint32_t childPid, nsIFile** dump, uint32_t* aSequence) { if (!GetEnabled()) return false; MutexAutoLock lock(*dumpMapLock); ChildProcessData* pd = pidToMinidump->GetEntry(childPid); if (!pd) return false; NS_IF_ADDREF(*dump = pd->minidump); if (aSequence) { *aSequence = pd->sequence; } pidToMinidump->RemoveEntry(childPid); return !!*dump; } //----------------------------------------------------------------------------- // CreatePairedMinidumps() and helpers // void RenameAdditionalHangMinidump(nsIFile* minidump, nsIFile* childMinidump, const nsACString& name) { nsCOMPtr directory; childMinidump->GetParent(getter_AddRefs(directory)); if (!directory) return; nsAutoCString leafName; childMinidump->GetNativeLeafName(leafName); // turn ".dmp" into "-.dmp leafName.Insert(NS_LITERAL_CSTRING("-") + name, leafName.Length() - 4); minidump->MoveToNative(directory, leafName); } static bool PairedDumpCallback( #ifdef XP_LINUX const MinidumpDescriptor& descriptor, #else const XP_CHAR* dump_path, const XP_CHAR* minidump_id, #endif void* context, #ifdef XP_WIN32 EXCEPTION_POINTERS* /*unused*/, MDRawAssertionInfo* /*unused*/, #endif bool succeeded) { nsCOMPtr& minidump = *static_cast< nsCOMPtr* >(context); xpstring dump; #ifdef XP_LINUX dump = descriptor.path(); #else dump = dump_path; dump += XP_PATH_SEPARATOR; dump += minidump_id; dump += dumpFileExtension; #endif CreateFileFromPath(dump, getter_AddRefs(minidump)); return true; } static bool PairedDumpCallbackExtra( #ifdef XP_LINUX const MinidumpDescriptor& descriptor, #else const XP_CHAR* dump_path, const XP_CHAR* minidump_id, #endif void* context, #ifdef XP_WIN32 EXCEPTION_POINTERS* /*unused*/, MDRawAssertionInfo* /*unused*/, #endif bool succeeded) { PairedDumpCallback( #ifdef XP_LINUX descriptor, #else dump_path, minidump_id, #endif context, #ifdef XP_WIN32 nullptr, nullptr, #endif succeeded); nsCOMPtr& minidump = *static_cast< nsCOMPtr* >(context); nsCOMPtr extra; return WriteExtraForMinidump(minidump, Blacklist(), getter_AddRefs(extra)); } ThreadId CurrentThreadId() { #if defined(XP_WIN) return ::GetCurrentThreadId(); #elif defined(XP_LINUX) return sys_gettid(); #elif defined(XP_MACOSX) // Just return an index, since Mach ports can't be directly serialized thread_act_port_array_t threads_for_task; mach_msg_type_number_t thread_count; if (task_threads(mach_task_self(), &threads_for_task, &thread_count)) return -1; for (unsigned int i = 0; i < thread_count; ++i) { if (threads_for_task[i] == mach_thread_self()) return i; } abort(); #else # error "Unsupported platform" #endif } #ifdef XP_MACOSX static mach_port_t GetChildThread(ProcessHandle childPid, ThreadId childBlamedThread) { mach_port_t childThread = MACH_PORT_NULL; thread_act_port_array_t threads_for_task; mach_msg_type_number_t thread_count; if (task_threads(childPid, &threads_for_task, &thread_count) == KERN_SUCCESS && childBlamedThread < thread_count) { childThread = threads_for_task[childBlamedThread]; } return childThread; } #endif bool CreatePairedMinidumps(ProcessHandle childPid, ThreadId childBlamedThread, nsIFile** childDump) { if (!GetEnabled()) return false; #ifdef XP_MACOSX mach_port_t childThread = GetChildThread(childPid, childBlamedThread); #else ThreadId childThread = childBlamedThread; #endif xpstring dump_path; #ifndef XP_LINUX dump_path = gExceptionHandler->dump_path(); #else dump_path = gExceptionHandler->minidump_descriptor().directory(); #endif // dump the child nsCOMPtr childMinidump; if (!google_breakpad::ExceptionHandler::WriteMinidumpForChild( childPid, childThread, dump_path, PairedDumpCallbackExtra, static_cast(&childMinidump))) return false; nsCOMPtr childExtra; GetExtraFileForMinidump(childMinidump, getter_AddRefs(childExtra)); // dump the parent nsCOMPtr parentMinidump; if (!google_breakpad::ExceptionHandler::WriteMinidump( dump_path, #ifdef XP_MACOSX true, // write exception stream #endif PairedDumpCallback, static_cast(&parentMinidump))) { childMinidump->Remove(false); childExtra->Remove(false); return false; } // success RenameAdditionalHangMinidump(parentMinidump, childMinidump, NS_LITERAL_CSTRING("browser")); if (ShouldReport()) { MoveToPending(childMinidump, childExtra); MoveToPending(parentMinidump, nullptr); } childMinidump.forget(childDump); return true; } bool CreateAdditionalChildMinidump(ProcessHandle childPid, ThreadId childBlamedThread, nsIFile* parentMinidump, const nsACString& name) { if (!GetEnabled()) return false; #ifdef XP_MACOSX mach_port_t childThread = GetChildThread(childPid, childBlamedThread); #else ThreadId childThread = childBlamedThread; #endif xpstring dump_path; #ifndef XP_LINUX dump_path = gExceptionHandler->dump_path(); #else dump_path = gExceptionHandler->minidump_descriptor().directory(); #endif // dump the child nsCOMPtr childMinidump; if (!google_breakpad::ExceptionHandler::WriteMinidumpForChild( childPid, childThread, dump_path, PairedDumpCallback, static_cast(&childMinidump))) { return false; } RenameAdditionalHangMinidump(childMinidump, parentMinidump, name); return true; } bool UnsetRemoteExceptionHandler() { delete gExceptionHandler; gExceptionHandler = NULL; return true; } #if defined(MOZ_WIDGET_ANDROID) void AddLibraryMapping(const char* library_name, uintptr_t start_address, size_t mapping_length, size_t file_offset) { if (!gExceptionHandler) { mapping_info info; info.name = library_name; info.start_address = start_address; info.length = mapping_length; info.file_offset = file_offset; library_mappings.push_back(info); } else { u_int8_t guid[sizeof(MDGUID)]; google_breakpad::FileID::ElfFileIdentifierFromMappedFile((void const *)start_address, guid); gExceptionHandler->AddMappingInfo(library_name, guid, start_address, mapping_length, file_offset); } } #endif } // namespace CrashReporter