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gecko/toolkit/crashreporter/nsExceptionHandler.cpp
Benjamin Smedberg d19c5bb416 Bug 771251 - OOP crash reporting accesses the directory service off the main thread. In addition, the first design of the crash injector callback meant that we're dropping some set of Flash crashes which happen during an RPC call. r=ted 
* Fix the directory service usage by saving the pending directory path from OOPInit.
* Force clients to call OOPInit on the main thread.
* Make injected crashes available via TakeMinidumpForChild and give each crash a sequence number so that we can pick the earliest crash from the three possibilities; delete the other two to avoid polluting about:crashes
2012-07-10 22:20:05 -04:00

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/* -*- 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/crash_generation_server.h"
#include "client/windows/handler/exception_handler.h"
#include <DbgHelp.h>
#include <string.h>
#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 <string>
#include <Carbon/Carbon.h>
#include <CoreFoundation/CoreFoundation.h>
#include <crt_externs.h>
#include <fcntl.h>
#include <mach/mach.h>
#include <sys/types.h>
#include <spawn.h>
#include <unistd.h>
#include "mac_utils.h"
#elif defined(XP_LINUX)
#include "nsDirectoryServiceDefs.h"
#include "nsIINIParser.h"
#include "common/linux/linux_libc_support.h"
#include "common/linux/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 <fcntl.h>
#include <sys/types.h>
#include <unistd.h>
#elif defined(XP_SOLARIS)
#include "client/solaris/handler/exception_handler.h"
#include <fcntl.h>
#include <sys/types.h>
#include <unistd.h>
#else
#error "Not yet implemented for this platform"
#endif // defined(XP_WIN32)
#ifdef MOZ_CRASHREPORTER_INJECTOR
#include "InjectCrashReporter.h"
using mozilla::InjectCrashRunnable;
#endif
#include <stdlib.h>
#include <time.h>
#include <prenv.h>
#include <prio.h>
#include <prmem.h>
#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 <map>
#include <vector>
#include "mozilla/mozalloc_oom.h"
#include "mozilla/mozPoisonWrite.h"
#if defined(XP_MACOSX)
CFStringRef reporterClientAppID = CFSTR("org.mozilla.crashreporter");
#endif
#include "nsIUUIDGenerator.h"
using google_breakpad::CrashGenerationServer;
using google_breakpad::ClientInfo;
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
// "<reporter path>" "<minidump path>"
#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 = nsnull;
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 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};
// 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;
// this holds additional data sent via the API
static Mutex* crashReporterAPILock;
static Mutex* notesFieldLock;
static AnnotationTable* crashReporterAPIData_Hash;
static nsCString* crashReporterAPIData = nsnull;
static nsCString* notesField = nsnull;
// 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<nsIFile> minidump;
// Each crashing process is assigned an increasing sequence number to
// indicate which process crashed first.
PRUint32 sequence;
#ifdef MOZ_CRASHREPORTER_INJECTOR
InjectorCrashCallback* callback;
#endif
};
typedef nsTHashtable<ChildProcessData> ChildMinidumpMap;
static ChildMinidumpMap* pidToMinidump;
static PRUint32 crashSequence;
static bool OOPInitialized();
#ifdef MOZ_CRASHREPORTER_INJECTOR
static nsIThread* sInjectorThread;
class ReportInjectedCrash : public nsRunnable
{
public:
ReportInjectedCrash(PRUint32 pid) : mPID(pid) { }
NS_IMETHOD Run();
private:
PRUint32 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<nsAutoPtr<DelayedNote> >* 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 ||
lpTopLevelExceptionFilter == google_breakpad::ExceptionHandler::HandleException) {
// 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(__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;
std::string debug_id;
uintptr_t start_address;
size_t length;
size_t file_offset;
} mapping_info;
static std::vector<mapping_info> library_mappings;
typedef std::map<PRUint32,google_breakpad::MappingList> MappingMap;
static MappingMap child_library_mappings;
void FileIDToGUID(const char* file_id, u_int8_t guid[sizeof(MDGUID)])
{
for (int i = 0; i < sizeof(MDGUID); i++) {
int c;
sscanf(file_id, "%02X", &c);
guid[i] = (u_int8_t)(c & 0xFF);
file_id += 2;
}
// GUIDs are stored in network byte order.
uint32_t* data1 = reinterpret_cast<uint32_t*>(guid);
*data1 = htonl(*data1);
uint16_t* data2 = reinterpret_cast<uint16_t*>(guid + 4);
*data2 = htons(*data2);
uint16_t* data3 = reinterpret_cast<uint16_t*>(guid + 6);
*data3 = htons(*data3);
}
#endif
#ifdef XP_LINUX
inline void
my_inttostring(intmax_t t, char* buffer, size_t buffer_length)
{
my_memset(buffer, 0, buffer_length);
my_itos(buffer, t, my_int_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(const XP_CHAR* dump_path,
const XP_CHAR* minidump_id,
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 = Concat(minidumpPath, dump_path, &size);
p = Concat(p, XP_PATH_SEPARATOR, &size);
p = Concat(p, minidump_id, &size);
Concat(p, dumpFileExtension, &size);
static XP_CHAR extraDataPath[XP_PATH_MAX];
size = XP_PATH_MAX;
p = Concat(extraDataPath, dump_path, &size);
p = Concat(p, XP_PATH_SEPARATOR, &size);
p = Concat(p, minidump_id, &size);
Concat(p, extraFileExtension, &size);
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)
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);
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);
}
// 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;
}
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 (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(__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
(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
/**
* Filters out floating point exceptions which are handled by nsSigHandlers.cpp
* and should not be handled as crashes.
*/
static bool FPEFilter(void* context, EXCEPTION_POINTERS* exinfo,
MDRawAssertionInfo* assertion)
{
if (!exinfo)
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
}
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");
return !(envvar && *envvar);
}
namespace {
bool Filter(void* context) {
mozilla::DisableWritePoisoning();
return true;
}
}
nsresult SetExceptionHandler(nsIFile* aXREDirectory,
bool force/*=false*/)
{
nsresult rv;
if (gExceptionHandler)
return NS_ERROR_ALREADY_INITIALIZED;
const char *envvar = PR_GetEnv("MOZ_CRASHREPORTER_DISABLE");
if (envvar && *envvar && !force)
return NS_OK;
// this environment variable prevents us from launching
// the crash reporter client
doReport = ShouldReport();
// 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<nsCStringHashKey,nsCString>();
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);
// locate crashreporter executable
nsCOMPtr<nsIFile> exePath;
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.
//TODO: don't hardcode org.mozilla here, so other vendors can
// ship XUL apps with different package names on Android?
nsCString package(ANDROID_PACKAGE_NAME "/.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 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
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<BYTE> 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;
}
}
}
#endif // XP_WIN32
// now set the exception handler
gExceptionHandler = new google_breakpad::
ExceptionHandler(tempPath.get(),
#ifdef XP_WIN
FPEFilter,
#else
Filter,
#endif
MinidumpCallback,
nsnull,
#if defined(XP_WIN32)
google_breakpad::ExceptionHandler::HANDLER_ALL,
minidump_type,
(const wchar_t*) NULL,
NULL);
#else
true
#if defined(XP_MACOSX)
, NULL
#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
gKernel32Intercept.Init("kernel32.dll");
bool ok = gKernel32Intercept.AddHook("SetUnhandledExceptionFilter",
reinterpret_cast<intptr_t>(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(__ANDROID__)
for (unsigned int i = 0; i < library_mappings.size(); i++) {
u_int8_t guid[sizeof(MDGUID)];
FileIDToGUID(library_mappings[i].debug_id.c_str(), 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 != nsnull;
}
bool GetMinidumpPath(nsAString& aPath)
{
if (!gExceptionHandler)
return false;
aPath = CONVERT_XP_CHAR_TO_UTF16(gExceptionHandler->dump_path().c_str());
return true;
}
nsresult SetMinidumpPath(const nsAString& aPath)
{
if (!gExceptionHandler)
return NS_ERROR_NOT_INITIALIZED;
gExceptionHandler->set_dump_path(CONVERT_UTF16_TO_XP_CHAR(aPath).BeginReading());
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;
PRInt32 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<nsIFile> 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<nsIFile> 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.
nsCAutoString dataDirEnv("MOZ_CRASHREPORTER_DATA_DIRECTORY=");
nsCAutoString 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
nsCAutoString 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<nsIFile> 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
nsCAutoString filename;
rv = lastCrashFile->GetNativePath(filename);
NS_ENSURE_SUCCESS(rv, rv);
if (filename.Length() < XP_PATH_MAX)
strncpy(lastCrashTimeFilename, filename.get(), filename.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 = nsnull;
delete crashReporterAPILock;
crashReporterAPILock = nsnull;
delete notesFieldLock;
notesFieldLock = nsnull;
delete crashReporterAPIData;
crashReporterAPIData = nsnull;
delete notesField;
notesField = nsnull;
if (pendingDirectory) {
NS_Free(pendingDirectory);
pendingDirectory = nsnull;
}
if (crashReporterPath) {
NS_Free(crashReporterPath);
crashReporterPath = nsnull;
}
#ifdef XP_MACOSX
posix_spawnattr_destroy(&spawnattr);
#endif
if (!gExceptionHandler)
return NS_ERROR_NOT_INITIALIZED;
gExceptionHandler = nsnull;
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)) {
PRInt32 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<nsAutoPtr<DelayedNote> >();
}
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 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;
nsCAutoString 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;
nsCAutoString 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)
{
nsCAutoString 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<nsIXULAppInfo> appinfo =
do_GetService("@mozilla.org/xre/app-info;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCAutoString appVendor, appName;
rv = appinfo->GetVendor(appVendor);
NS_ENSURE_SUCCESS(rv, rv);
rv = appinfo->GetName(appName);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIWindowsRegKey> regKey
(do_CreateInstance("@mozilla.org/windows-registry-key;1", &rv));
NS_ENSURE_SUCCESS(rv, rv);
nsCAutoString 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);
PRUint32 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".
PRUint32 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<nsIFile> 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<nsIINIParserFactory> iniFactory =
do_GetService("@mozilla.org/xpcom/ini-processor-factory;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIINIParser> 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<nsIINIParserWriter> 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;
}
nsCAutoString 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<nsIObserverService> obsServ =
mozilla::services::GetObserverService();
if (!obsServ) {
return NS_ERROR_FAILURE;
}
rv = PrefSubmitReports(&aSubmitReports, true);
if (NS_FAILED(rv)) {
return rv;
}
obsServ->NotifyObservers(nsnull, "submit-reports-pref-changed", nsnull);
return NS_OK;
}
// 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<nsIFile> pending = do_CreateInstance(NS_LOCAL_FILE_CONTRACTID);
#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 {
CreateFileFromPath(gExceptionHandler->dump_path(), dir);
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<nsIFile> 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<nsIFile> 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<EnumerateAnnotationsContext*>(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;
PRIntn 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<nsIFile> 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<nsIFile> pendingDir;
if (!GetPendingDir(getter_AddRefs(pendingDir)))
return false;
return NS_SUCCEEDED(dumpFile->MoveTo(pendingDir, EmptyString())) &&
NS_SUCCEEDED(extraFile->MoveTo(pendingDir, EmptyString()));
}
static void
OnChildProcessDumpRequested(void* aContext,
#ifdef XP_MACOSX
const ClientInfo& aClientInfo,
const xpstring& aFilePath
#else
const ClientInfo* aClientInfo,
const xpstring* aFilePath
#endif
)
{
nsCOMPtr<nsIFile> minidump;
nsCOMPtr<nsIFile> extraFile;
CreateFileFromPath(
#ifdef XP_MACOSX
aFilePath,
#else
*aFilePath,
#endif
getter_AddRefs(minidump));
#if defined(__ANDROID__)
// Do dump generation here since the CrashGenerationServer doesn't
// have access to the library mappings.
MappingMap::const_iterator iter =
child_library_mappings.find(aClientInfo->pid_);
google_breakpad::AppMemoryList a;
if (iter == child_library_mappings.end()) {
NS_WARNING("No library mappings found for child, can't write minidump!");
return;
}
if (!google_breakpad::WriteMinidump(aFilePath->c_str(),
aClientInfo->pid_,
aClientInfo->crash_context,
aClientInfo->crash_context_size,
iter->second,
a))
return;
#endif
if (!WriteExtraForMinidump(minidump,
Blacklist(kSubprocessBlacklist,
ArrayLength(kSubprocessBlacklist)),
getter_AddRefs(extraFile)))
return;
if (ShouldReport())
MoveToPending(minidump, extraFile);
{
PRUint32 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;
}
static bool ChildFilter(void *context) {
mozilla::DisableWritePoisoning();
return true;
}
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<int>(::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
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->dump_path();
bool generateDumps = true;
#if defined(__ANDROID__)
// On Android, the callback will do dump generation, since it needs
// to pass the library mappings.
generateDumps = false;
#endif
crashServer = new CrashGenerationServer(
serverSocketFd,
OnChildProcessDumpRequested, NULL,
NULL, NULL, // we don't care about process exit here
generateDumps,
&dumpPath);
#elif defined(XP_MACOSX)
childCrashNotifyPipe =
PR_smprintf("gecko-crash-server-pipe.%i",
static_cast<int>(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");
nsCOMPtr<nsIFile> 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
}
}
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<nsIRunnable> 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
#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");
gExceptionHandler = new google_breakpad::
ExceptionHandler("",
NULL, // no filter callback
NULL, // no minidump callback
NULL, // no callback context
true, // install signal handlers
kMagicChildCrashReportFd);
if (gDelayedAnnotations) {
for (PRUint32 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(PRUint32 childPid, nsIFile** dump, PRUint32* 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
//
struct PairedDumpContext {
nsCOMPtr<nsIFile>* minidump;
nsCOMPtr<nsIFile>* extra;
const Blacklist& blacklist;
};
static bool
PairedDumpCallback(const XP_CHAR* dump_path,
const XP_CHAR* minidump_id,
void* context,
#ifdef XP_WIN32
EXCEPTION_POINTERS* /*unused*/,
MDRawAssertionInfo* /*unused*/,
#endif
bool succeeded)
{
PairedDumpContext* ctx = static_cast<PairedDumpContext*>(context);
nsCOMPtr<nsIFile>& minidump = *ctx->minidump;
nsCOMPtr<nsIFile>& extra = *ctx->extra;
const Blacklist& blacklist = ctx->blacklist;
xpstring dump(dump_path);
dump += XP_PATH_SEPARATOR;
dump += minidump_id;
dump += dumpFileExtension;
CreateFileFromPath(dump, getter_AddRefs(minidump));
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
}
bool
CreatePairedMinidumps(ProcessHandle childPid,
ThreadId childBlamedThread,
nsAString* pairGUID,
nsIFile** childDump,
nsIFile** parentDump)
{
if (!GetEnabled())
return false;
// create the UUID for the hang dump as a pair
nsresult rv;
nsCOMPtr<nsIUUIDGenerator> uuidgen =
do_GetService("@mozilla.org/uuid-generator;1", &rv);
NS_ENSURE_SUCCESS(rv, false);
nsID id;
rv = uuidgen->GenerateUUIDInPlace(&id);
NS_ENSURE_SUCCESS(rv, false);
char chars[NSID_LENGTH];
id.ToProvidedString(chars);
CopyASCIItoUTF16(chars, *pairGUID);
// trim off braces
pairGUID->Cut(0, 1);
pairGUID->Cut(pairGUID->Length()-1, 1);
#ifdef XP_MACOSX
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];
}
#else
ThreadId childThread = childBlamedThread;
#endif
// dump the child
nsCOMPtr<nsIFile> childMinidump;
nsCOMPtr<nsIFile> childExtra;
Blacklist childBlacklist(kSubprocessBlacklist,
ArrayLength(kSubprocessBlacklist));
PairedDumpContext childCtx =
{ &childMinidump, &childExtra, childBlacklist };
if (!google_breakpad::ExceptionHandler::WriteMinidumpForChild(
childPid,
childThread,
gExceptionHandler->dump_path(),
PairedDumpCallback,
&childCtx))
return false;
// dump the parent
nsCOMPtr<nsIFile> parentMinidump;
nsCOMPtr<nsIFile> parentExtra;
// nothing's blacklisted for this process
Blacklist parentBlacklist;
PairedDumpContext parentCtx =
{ &parentMinidump, &parentExtra, parentBlacklist };
if (!google_breakpad::ExceptionHandler::WriteMinidump(
gExceptionHandler->dump_path(),
true, // write exception stream
PairedDumpCallback,
&parentCtx))
return false;
// success
if (ShouldReport()) {
MoveToPending(childMinidump, childExtra);
MoveToPending(parentMinidump, parentExtra);
}
*childDump = NULL;
*parentDump = NULL;
childMinidump.swap(*childDump);
parentMinidump.swap(*parentDump);
return true;
}
bool
UnsetRemoteExceptionHandler()
{
delete gExceptionHandler;
gExceptionHandler = NULL;
return true;
}
#if defined(__ANDROID__)
void AddLibraryMapping(const char* library_name,
const char* file_id,
uintptr_t start_address,
size_t mapping_length,
size_t file_offset)
{
if (!gExceptionHandler) {
mapping_info info;
info.name = library_name;
info.debug_id = file_id;
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)];
FileIDToGUID(file_id, guid);
gExceptionHandler->AddMappingInfo(library_name,
guid,
start_address,
mapping_length,
file_offset);
}
}
void AddLibraryMappingForChild(PRUint32 childPid,
const char* library_name,
const char* file_id,
uintptr_t start_address,
size_t mapping_length,
size_t file_offset)
{
if (child_library_mappings.find(childPid) == child_library_mappings.end())
child_library_mappings[childPid] = google_breakpad::MappingList();
google_breakpad::MappingInfo info;
info.start_addr = start_address;
info.size = mapping_length;
info.offset = file_offset;
strcpy(info.name, library_name);
std::pair<google_breakpad::MappingInfo, u_int8_t[sizeof(MDGUID)]> mapping;
mapping.first = info;
u_int8_t guid[sizeof(MDGUID)];
FileIDToGUID(file_id, guid);
memcpy(mapping.second, guid, sizeof(MDGUID));
child_library_mappings[childPid].push_back(mapping);
}
void RemoveLibraryMappingsForChild(PRUint32 childPid)
{
MappingMap::iterator iter = child_library_mappings.find(childPid);
if (iter != child_library_mappings.end())
child_library_mappings.erase(iter);
}
#endif
} // namespace CrashReporter
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