diff options
Diffstat (limited to 'indra/llcommon/llapp.cpp')
-rwxr-xr-x[-rw-r--r--] | indra/llcommon/llapp.cpp | 361 |
1 files changed, 241 insertions, 120 deletions
diff --git a/indra/llcommon/llapp.cpp b/indra/llcommon/llapp.cpp index eebd5ed0a6..5a40845e7d 100644..100755 --- a/indra/llcommon/llapp.cpp +++ b/indra/llcommon/llapp.cpp @@ -24,6 +24,10 @@ * $/LicenseInfo$ */ +#include "linden_common.h" + +#include "llapp.h" + #include <cstdlib> #ifdef LL_DARWIN @@ -32,9 +36,6 @@ #include <sys/sysctl.h> #endif -#include "linden_common.h" -#include "llapp.h" - #include "llcommon.h" #include "llapr.h" #include "llerrorcontrol.h" @@ -45,8 +46,8 @@ #include "llstl.h" // for DeletePointer() #include "llstring.h" #include "lleventtimer.h" - #include "google_breakpad/exception_handler.h" +#include "stringize.h" // // Signal handling @@ -54,6 +55,8 @@ // Windows uses structured exceptions, so it's handled a bit differently. // #if LL_WINDOWS +#include "windows.h" + LONG WINAPI default_windows_exception_handler(struct _EXCEPTION_POINTERS *exception_infop); BOOL ConsoleCtrlHandler(DWORD fdwCtrlType); bool windows_post_minidump_callback(const wchar_t* dump_path, @@ -68,10 +71,18 @@ bool windows_post_minidump_callback(const wchar_t* dump_path, void setup_signals(); void default_unix_signal_handler(int signum, siginfo_t *info, void *); +#if LL_LINUX +#include "google_breakpad/minidump_descriptor.h" +static bool unix_minidump_callback(const google_breakpad::MinidumpDescriptor& minidump_desc, + void* context, + bool succeeded); +#else // Called by breakpad exception handler after the minidump has been generated. bool unix_post_minidump_callback(const char *dump_dir, const char *minidump_id, void *context, bool succeeded); +#endif + # if LL_DARWIN /* OSX doesn't support SIGRT* */ S32 LL_SMACKDOWN_SIGNAL = SIGUSR1; @@ -90,6 +101,10 @@ S32 LL_HEARTBEAT_SIGNAL = (SIGRTMAX >= 0) ? (SIGRTMAX-0) : SIGUSR2; // the static application instance LLApp* LLApp::sApplication = NULL; +// Allows the generation of core files for post mortem under gdb +// and disables crashlogger +BOOL LLApp::sDisableCrashlogger = FALSE; + // Local flag for whether or not to do logging in signal handlers. //static BOOL LLApp::sLogInSignal = FALSE; @@ -98,11 +113,6 @@ BOOL LLApp::sLogInSignal = FALSE; LLApp::EAppStatus LLApp::sStatus = LLApp::APP_STATUS_STOPPED; // Keeps track of application status LLAppErrorHandler LLApp::sErrorHandler = NULL; BOOL LLApp::sErrorThreadRunning = FALSE; -#if !LL_WINDOWS -LLApp::child_map LLApp::sChildMap; -LLAtomicU32* LLApp::sSigChildCount = NULL; -LLAppChildCallback LLApp::sDefaultChildCallback = NULL; -#endif LLApp::LLApp() : mThreadErrorp(NULL) @@ -117,11 +127,6 @@ void LLApp::commonCtor() LLCommon::initClass(); -#if !LL_WINDOWS - // This must be initialized before the error handler. - sSigChildCount = new LLAtomicU32(0); -#endif - // initialize the options structure. We need to make this an array // because the structured data will not auto-allocate if we // reference an invalid location with the [] operator. @@ -138,12 +143,13 @@ void LLApp::commonCtor() // Set the application to this instance. sApplication = this; - + mExceptionHandler = 0; // initialize the buffer to write the minidump filename to // (this is used to avoid allocating memory in the crash handler) - memset(minidump_path, 0, MAX_MINDUMP_PATH_LENGTH); + memset(mMinidumpPath, 0, MAX_MINDUMP_PATH_LENGTH); + mCrashReportPipeStr = L"\\\\.\\pipe\\LLCrashReporterPipe"; } LLApp::LLApp(LLErrorThread *error_thread) : @@ -155,10 +161,6 @@ LLApp::LLApp(LLErrorThread *error_thread) : LLApp::~LLApp() { -#if !LL_WINDOWS - delete sSigChildCount; - sSigChildCount = NULL; -#endif // reclaim live file memory std::for_each(mLiveFiles.begin(), mLiveFiles.end(), DeletePointer()); @@ -207,8 +209,8 @@ bool LLApp::parseCommandOptions(int argc, char** argv) { if(argv[ii][0] != '-') { - llinfos << "Did not find option identifier while parsing token: " - << argv[ii] << llendl; + LL_INFOS() << "Did not find option identifier while parsing token: " + << argv[ii] << LL_ENDL; return false; } int offset = 1; @@ -233,6 +235,20 @@ bool LLApp::parseCommandOptions(int argc, char** argv) } ++ii; value.assign(argv[ii]); + +#if LL_WINDOWS + //Windows changed command line parsing. Deal with it. + S32 slen = value.length() - 1; + S32 start = 0; + S32 end = slen; + if (argv[ii][start]=='"')start++; + if (argv[ii][end]=='"')end--; + if (start!=0 || end!=slen) + { + value = value.substr (start,end); + } +#endif + commands[name] = value; } setOptionData(PRIORITY_COMMAND_LINE, commands); @@ -277,13 +293,43 @@ void LLApp::stepFrame() mRunner.run(); } +#if LL_WINDOWS +//The following code is needed for 32-bit apps on 64-bit windows to keep it from eating +//crashes. It is a lovely undocumented 'feature' in SP1 of Windows 7. An excellent +//in-depth article on the issue may be found here: http://randomascii.wordpress.com/2012/07/05/when-even-crashing-doesn-work/ +void EnableCrashingOnCrashes() +{ + typedef BOOL (WINAPI *tGetPolicy)(LPDWORD lpFlags); + typedef BOOL (WINAPI *tSetPolicy)(DWORD dwFlags); + const DWORD EXCEPTION_SWALLOWING = 0x1; + + HMODULE kernel32 = LoadLibraryA("kernel32.dll"); + tGetPolicy pGetPolicy = (tGetPolicy)GetProcAddress(kernel32, + "GetProcessUserModeExceptionPolicy"); + tSetPolicy pSetPolicy = (tSetPolicy)GetProcAddress(kernel32, + "SetProcessUserModeExceptionPolicy"); + if (pGetPolicy && pSetPolicy) + { + DWORD dwFlags; + if (pGetPolicy(&dwFlags)) + { + // Turn off the filter + pSetPolicy(dwFlags & ~EXCEPTION_SWALLOWING); + } + } +} +#endif -void LLApp::setupErrorHandling() +void LLApp::setupErrorHandling(bool second_instance) { // Error handling is done by starting up an error handling thread, which just sleeps and // occasionally checks to see if the app is in an error state, and sees if it needs to be run. #if LL_WINDOWS + +#if LL_SEND_CRASH_REPORTS + EnableCrashingOnCrashes(); + // This sets a callback to handle w32 signals to the console window. // The viewer shouldn't be affected, sicne its a windowed app. SetConsoleCtrlHandler( (PHANDLER_ROUTINE) ConsoleCtrlHandler, TRUE); @@ -291,11 +337,59 @@ void LLApp::setupErrorHandling() // Install the Google Breakpad crash handler for Windows if(mExceptionHandler == 0) { - llwarns << "adding breakpad exception handler" << llendl; - mExceptionHandler = new google_breakpad::ExceptionHandler( - L"C:\\Temp\\", 0, windows_post_minidump_callback, 0, google_breakpad::ExceptionHandler::HANDLER_ALL); - } + if ( second_instance ) //BUG-5707 Firing teleport from a web browser causes second + { + mExceptionHandler = new google_breakpad::ExceptionHandler( + L"C:\\Temp\\", + 0, //No filter + windows_post_minidump_callback, + 0, + google_breakpad::ExceptionHandler::HANDLER_ALL); //No custom client info. + } + else + { + LL_WARNS() << "adding breakpad exception handler" << LL_ENDL; + + std::wstring wpipe_name; + wpipe_name = mCrashReportPipeStr + wstringize(getPid()); + const std::wstring wdump_path(wstringize(mDumpPath)); + + int retries = 30; + for (; retries > 0; --retries) + { + if (mExceptionHandler != 0) delete mExceptionHandler; + + mExceptionHandler = new google_breakpad::ExceptionHandler( + wdump_path, + NULL, //No filter + windows_post_minidump_callback, + 0, + google_breakpad::ExceptionHandler::HANDLER_ALL, + MiniDumpNormal, //Generate a 'normal' minidump. + wpipe_name.c_str(), + NULL); //No custom client info. + if (mExceptionHandler->IsOutOfProcess()) + { + LL_INFOS("CRASHREPORT") << "Successfully attached to Out of Process exception handler." << LL_ENDL; + break; + } + else + { + LL_WARNS("CRASHREPORT") << "Unable to attach to Out of Process exception handler. " << retries << " retries remaining." << LL_ENDL; + ::Sleep(100); //Wait a tick and try again. + } + } + + if (retries == 0) LL_WARNS("CRASHREPORT") << "Unable to attach to Out of Process exception handler." << LL_ENDL; + } + + if (mExceptionHandler) + { + mExceptionHandler->set_handle_debug_exceptions(true); + } + } +#endif #else // // Start up signal handling. @@ -307,7 +401,7 @@ void LLApp::setupErrorHandling() // Add google breakpad exception handler configured for Darwin/Linux. bool installHandler = true; -#ifdef LL_DARWIN +#if LL_DARWIN // For the special case of Darwin, we do not want to install the handler if // the process is being debugged as the app will exit with value ABRT (6) if // we do. Unfortunately, the code below which performs that test relies on @@ -340,14 +434,24 @@ void LLApp::setupErrorHandling() installHandler = true; } #endif -#endif + if(installHandler && (mExceptionHandler == 0)) { - std::string dumpPath = "/tmp/"; - mExceptionHandler = new google_breakpad::ExceptionHandler(dumpPath, 0, &unix_post_minidump_callback, 0, true); + mExceptionHandler = new google_breakpad::ExceptionHandler(mDumpPath, 0, &unix_post_minidump_callback, 0, true, 0); + } +#elif LL_LINUX + if(installHandler && (mExceptionHandler == 0)) + { + if (mDumpPath.empty()) + { + mDumpPath = "/tmp"; + } + google_breakpad::MinidumpDescriptor desc(mDumpPath); + mExceptionHandler = new google_breakpad::ExceptionHandler(desc, NULL, unix_minidump_callback, NULL, true, -1); } #endif +#endif startErrorThread(); } @@ -359,7 +463,7 @@ void LLApp::startErrorThread() // if(!mThreadErrorp) { - llinfos << "Starting error thread" << llendl; + LL_INFOS() << "Starting error thread" << LL_ENDL; mThreadErrorp = new LLErrorThread(); mThreadErrorp->setUserData((void *) this); mThreadErrorp->start(); @@ -379,7 +483,7 @@ void LLApp::runErrorHandler() LLApp::sErrorHandler(); } - //llinfos << "App status now STOPPED" << llendl; + //LL_INFOS() << "App status now STOPPED" << LL_ENDL; LLApp::setStopped(); } @@ -399,16 +503,35 @@ void LLApp::setError() void LLApp::setMiniDumpDir(const std::string &path) { + if (path.empty()) + { + mDumpPath = "/tmp"; + } + else + { + mDumpPath = path; + } + if(mExceptionHandler == 0) return; #ifdef LL_WINDOWS wchar_t buffer[MAX_MINDUMP_PATH_LENGTH]; - mbstowcs(buffer, path.c_str(), MAX_MINDUMP_PATH_LENGTH); + mbstowcs(buffer, mDumpPath.c_str(), MAX_MINDUMP_PATH_LENGTH); mExceptionHandler->set_dump_path(std::wstring(buffer)); +#elif LL_LINUX + //google_breakpad::MinidumpDescriptor desc("/tmp"); //path works in debug fails in production inside breakpad lib so linux gets a little less stack reporting until it is patched. + google_breakpad::MinidumpDescriptor desc(mDumpPath); //path works in debug fails in production inside breakpad lib so linux gets a little less stack reporting until it is patched. + mExceptionHandler->set_minidump_descriptor(desc); #else - mExceptionHandler->set_dump_path(path); + mExceptionHandler->set_dump_path(mDumpPath); #endif } +void LLApp::setDebugFileNames(const std::string &path) +{ + mStaticDebugFileName = path + "static_debug_info.log"; + mDynamicDebugFileName = path + "dynamic_debug_info.log"; +} + void LLApp::writeMiniDump() { if(mExceptionHandler == 0) return; @@ -421,7 +544,7 @@ void LLApp::setQuitting() if (!isExiting()) { // If we're already exiting, we don't want to reset our state back to quitting. - llinfos << "Setting app state to QUITTING" << llendl; + LL_INFOS() << "Setting app state to QUITTING" << LL_ENDL; setStatus(APP_STATUS_QUITTING); } } @@ -461,39 +584,35 @@ bool LLApp::isQuitting() return (APP_STATUS_QUITTING == sStatus); } +// static bool LLApp::isExiting() { return isQuitting() || isError(); } -#if !LL_WINDOWS -// static -U32 LLApp::getSigChildCount() +void LLApp::disableCrashlogger() { - if (sSigChildCount) + // Disable Breakpad exception handler. + if (mExceptionHandler != 0) { - return U32(*sSigChildCount); + delete mExceptionHandler; + mExceptionHandler = 0; } - return 0; + + sDisableCrashlogger = TRUE; } // static -void LLApp::incSigChildCount() +bool LLApp::isCrashloggerDisabled() { - if (sSigChildCount) - { - (*sSigChildCount)++; - } + return (sDisableCrashlogger == TRUE); } -#endif - - // static int LLApp::getPid() { #if LL_WINDOWS - return 0; + return GetCurrentProcessId(); #else return getpid(); #endif @@ -510,7 +629,7 @@ LONG WINAPI default_windows_exception_handler(struct _EXCEPTION_POINTERS *except if (LLApp::isError()) { - llwarns << "Got another fatal signal while in the error handler, die now!" << llendl; + LL_WARNS() << "Got another fatal signal while in the error handler, die now!" << LL_ENDL; retval = EXCEPTION_EXECUTE_HANDLER; return retval; } @@ -556,7 +675,7 @@ BOOL ConsoleCtrlHandler(DWORD fdwCtrlType) // We're already trying to die, just ignore this signal if (LLApp::sLogInSignal) { - llinfos << "Signal handler - Already trying to quit, ignoring signal!" << llendl; + LL_INFOS() << "Signal handler - Already trying to quit, ignoring signal!" << LL_ENDL; } return TRUE; } @@ -569,43 +688,6 @@ BOOL ConsoleCtrlHandler(DWORD fdwCtrlType) } #else //!LL_WINDOWS -void LLApp::setChildCallback(pid_t pid, LLAppChildCallback callback) -{ - LLChildInfo child_info; - child_info.mCallback = callback; - LLApp::sChildMap[pid] = child_info; -} - -void LLApp::setDefaultChildCallback(LLAppChildCallback callback) -{ - LLApp::sDefaultChildCallback = callback; -} - -pid_t LLApp::fork() -{ - fflush(NULL); // flush all buffers before the child inherits them - pid_t pid = ::fork(); - if( pid < 0 ) - { - int system_error = errno; - llwarns << "Unable to fork! Operating system error code: " - << system_error << llendl; - } - else if (pid == 0) - { - // Sleep a bit to allow the parent to set up child callbacks. - ms_sleep(10); - - // We need to disable signal handling, because we don't have a - // signal handling thread anymore. - setupErrorHandling(); - } - else - { - llinfos << "Forked child process " << pid << llendl; - } - return pid; -} void setup_signals() { @@ -694,7 +776,7 @@ void default_unix_signal_handler(int signum, siginfo_t *info, void *) if (LLApp::sLogInSignal) { - llinfos << "Signal handler - Got signal " << signum << " - " << apr_signal_description_get(signum) << llendl; + LL_INFOS() << "Signal handler - Got signal " << signum << " - " << apr_signal_description_get(signum) << LL_ENDL; } @@ -703,28 +785,15 @@ void default_unix_signal_handler(int signum, siginfo_t *info, void *) case SIGCHLD: if (LLApp::sLogInSignal) { - llinfos << "Signal handler - Got SIGCHLD from " << info->si_pid << llendl; - } - - // Check result code for all child procs for which we've - // registered callbacks THIS WILL NOT WORK IF SIGCHLD IS SENT - // w/o killing the child (Go, launcher!) - // TODO: Now that we're using SIGACTION, we can actually - // implement the launcher behavior to determine who sent the - // SIGCHLD even if it doesn't result in child termination - if (LLApp::sChildMap.count(info->si_pid)) - { - LLApp::sChildMap[info->si_pid].mGotSigChild = TRUE; + LL_INFOS() << "Signal handler - Got SIGCHLD from " << info->si_pid << LL_ENDL; } - - LLApp::incSigChildCount(); return; case SIGABRT: // Abort just results in termination of the app, no funky error handling. if (LLApp::sLogInSignal) { - llwarns << "Signal handler - Got SIGABRT, terminating" << llendl; + LL_WARNS() << "Signal handler - Got SIGABRT, terminating" << LL_ENDL; } clear_signals(); raise(signum); @@ -734,7 +803,7 @@ void default_unix_signal_handler(int signum, siginfo_t *info, void *) case SIGTERM: if (LLApp::sLogInSignal) { - llwarns << "Signal handler - Got SIGINT, HUP, or TERM, exiting gracefully" << llendl; + LL_WARNS() << "Signal handler - Got SIGINT, HUP, or TERM, exiting gracefully" << LL_ENDL; } // Graceful exit // Just set our state to quitting, not error @@ -743,7 +812,7 @@ void default_unix_signal_handler(int signum, siginfo_t *info, void *) // We're already trying to die, just ignore this signal if (LLApp::sLogInSignal) { - llinfos << "Signal handler - Already trying to quit, ignoring signal!" << llendl; + LL_INFOS() << "Signal handler - Already trying to quit, ignoring signal!" << LL_ENDL; } return; } @@ -765,7 +834,7 @@ void default_unix_signal_handler(int signum, siginfo_t *info, void *) // Smackdown treated just like any other app termination, for now if (LLApp::sLogInSignal) { - llwarns << "Signal handler - Handling smackdown signal!" << llendl; + LL_WARNS() << "Signal handler - Handling smackdown signal!" << LL_ENDL; } else { @@ -779,7 +848,7 @@ void default_unix_signal_handler(int signum, siginfo_t *info, void *) if (LLApp::sLogInSignal) { - llwarns << "Signal handler - Handling fatal signal!" << llendl; + LL_WARNS() << "Signal handler - Handling fatal signal!" << LL_ENDL; } if (LLApp::isError()) { @@ -789,7 +858,7 @@ void default_unix_signal_handler(int signum, siginfo_t *info, void *) if (LLApp::sLogInSignal) { - llwarns << "Signal handler - Got another fatal signal while in the error handler, die now!" << llendl; + LL_WARNS() << "Signal handler - Got another fatal signal while in the error handler, die now!" << LL_ENDL; } raise(signum); return; @@ -797,8 +866,17 @@ void default_unix_signal_handler(int signum, siginfo_t *info, void *) if (LLApp::sLogInSignal) { - llwarns << "Signal handler - Flagging error status and waiting for shutdown" << llendl; + LL_WARNS() << "Signal handler - Flagging error status and waiting for shutdown" << LL_ENDL; } + + if (LLApp::isCrashloggerDisabled()) // Don't gracefully handle any signal, crash and core for a gdb post mortem + { + clear_signals(); + LL_WARNS() << "Fatal signal received, not handling the crash here, passing back to operating system" << LL_ENDL; + raise(signum); + return; + } + // Flag status to ERROR, so thread_error does its work. LLApp::setError(); // Block in the signal handler until somebody says that we're done. @@ -809,7 +887,7 @@ void default_unix_signal_handler(int signum, siginfo_t *info, void *) if (LLApp::sLogInSignal) { - llwarns << "Signal handler - App is stopped, reraising signal" << llendl; + LL_WARNS() << "Signal handler - App is stopped, reraising signal" << LL_ENDL; } clear_signals(); raise(signum); @@ -817,12 +895,54 @@ void default_unix_signal_handler(int signum, siginfo_t *info, void *) } else { if (LLApp::sLogInSignal) { - llinfos << "Signal handler - Unhandled signal " << signum << ", ignoring!" << llendl; + LL_INFOS() << "Signal handler - Unhandled signal " << signum << ", ignoring!" << LL_ENDL; } } } } +#if LL_LINUX +bool unix_minidump_callback(const google_breakpad::MinidumpDescriptor& minidump_desc, void* context, bool succeeded) +{ + // Copy minidump file path into fixed buffer in the app instance to avoid + // heap allocations in a crash handler. + + // path format: <dump_dir>/<minidump_id>.dmp + + //HACK: *path points to the buffer in getMiniDumpFilename which has already allocated space + //to avoid doing allocation during crash. + char * path = LLApp::instance()->getMiniDumpFilename(); + int dir_path_len = strlen(path); + + // The path must not be truncated. + S32 remaining = LLApp::MAX_MINDUMP_PATH_LENGTH - dir_path_len; + + llassert( (remaining - strlen(minidump_desc.path())) > 5); + + path += dir_path_len; + + if (dir_path_len > 0 && path[-1] != '/') + { + *path++ = '/'; + --remaining; + } + + strncpy(path, minidump_desc.path(), remaining); + + LL_INFOS() << "generated minidump: " << LLApp::instance()->getMiniDumpFilename() << LL_ENDL; + LLApp::runErrorHandler(); + +#ifndef LL_RELEASE_FOR_DOWNLOAD + clear_signals(); + return false; +#else + return true; +#endif + +} +#endif + + bool unix_post_minidump_callback(const char *dump_dir, const char *minidump_id, void *context, bool succeeded) @@ -855,7 +975,7 @@ bool unix_post_minidump_callback(const char *dump_dir, strncpy(path, ".dmp", remaining); } - llinfos << "generated minidump: " << LLApp::instance()->getMiniDumpFilename() << llendl; + LL_INFOS() << "generated minidump: " << LLApp::instance()->getMiniDumpFilename() << LL_ENDL; LLApp::runErrorHandler(); #ifndef LL_RELEASE_FOR_DOWNLOAD @@ -879,6 +999,7 @@ bool windows_post_minidump_callback(const wchar_t* dump_path, S32 remaining = LLApp::MAX_MINDUMP_PATH_LENGTH; size_t bytesUsed; + LL_INFOS("MINIDUMPCALLBACK") << "Dump file was generated." << LL_ENDL; bytesUsed = wcstombs(path, dump_path, static_cast<size_t>(remaining)); remaining -= bytesUsed; path += bytesUsed; @@ -898,16 +1019,16 @@ bool windows_post_minidump_callback(const wchar_t* dump_path, strncpy(path, ".dmp", remaining); } - llinfos << "generated minidump: " << LLApp::instance()->getMiniDumpFilename() << llendl; - // *NOTE:Mani - this code is stolen from LLApp, where its never actually used. + LL_INFOS() << "generated minidump: " << LLApp::instance()->getMiniDumpFilename() << LL_ENDL; + // *NOTE:Mani - this code is stolen from LLApp, where its never actually used. //OSMessageBox("Attach Debugger Now", "Error", OSMB_OK); - // *TODO: Translate the signals/exceptions into cross-platform stuff + // *TODO: Translate the signals/exceptions into cross-platform stuff // Windows implementation - llinfos << "Entering Windows Exception Handler..." << llendl; + LL_INFOS() << "Entering Windows Exception Handler..." << LL_ENDL; if (LLApp::isError()) { - llwarns << "Got another fatal signal while in the error handler, die now!" << llendl; + LL_WARNS() << "Got another fatal signal while in the error handler, die now!" << LL_ENDL; } // Flag status to error, so thread_error starts its work |