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Split out BacktraceAllThreads() and do so when signaled with SIGUSR1.

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This commit is contained in:
Steve Checkoway
2006-01-11 06:19:47 +00:00
parent db70c7fc8d
commit 963e3aab2a
2 changed files with 35 additions and 18 deletions
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stepmania/src/archutils/Unix/CrashHandler.cpp
+31 -17
View File
@@ -238,8 +238,11 @@ const char *SignalName( int signo )
X(SIGQUIT)
case SIGSEGV: return "Segmentation fault";
X(SIGTRAP) X(SIGTERM) X(SIGVTALRM) X(SIGXCPU) X(SIGXFSZ)
#if defined(HAVE_DECL_SIGPWR) && HAVE_DECL_SIGPWR
#if defined(HAVE_DECL_SIGPWR)
X(SIGPWR)
#endif
#if defined(HAVE_DECL_SIGUSR1)
case SIGUSR1: return "Forced crash";
#endif
default:
{
@@ -352,6 +355,28 @@ static void RunCrashHandler( const CrashData *crash )
}
}
static void BacktraceAllThreads( CrashData& crash )
{
int iCnt = 1;
uint64_t iID;
for( int i = 0; RageThread::EnumThreadIDs(i, iID); ++i )
{
if( iID == GetInvalidThreadId() || iID == RageThread::GetCurrentThreadID() )
continue;
BacktraceContext ctx;
if( GetThreadBacktraceContext( iID, &ctx ) )
GetBacktrace( crash.BacktracePointers[iCnt], BACKTRACE_MAX_SIZE, &ctx );
strncpy( crash.m_ThreadName[iCnt], RageThread::GetThreadNameByID(iID), sizeof(crash.m_ThreadName[0])-1 );
++iCnt;
if( iCnt == CrashData::MAX_BACKTRACE_THREADS )
break;
}
}
void CrashHandler::ForceCrash( const char *reason )
{
CrashData crash;
@@ -378,22 +403,7 @@ void CrashHandler::ForceDeadlock( CString reason, uint64_t iID )
if( iID == GetInvalidThreadId() )
{
/* Backtrace all threads. */
int iCnt = 1;
for( int i = 0; RageThread::EnumThreadIDs(i, iID); ++i )
{
if( iID == GetInvalidThreadId() || iID == RageThread::GetCurrentThreadID() )
continue;
BacktraceContext ctx;
if( GetThreadBacktraceContext( iID, &ctx ) )
GetBacktrace( crash.BacktracePointers[iCnt], BACKTRACE_MAX_SIZE, &ctx );
strncpy( crash.m_ThreadName[iCnt], RageThread::GetThreadNameByID(iID), sizeof(crash.m_ThreadName[0])-1 );
++iCnt;
if( iCnt == CrashData::MAX_BACKTRACE_THREADS )
break;
}
BacktraceAllThreads( crash );
}
else
{
@@ -429,6 +439,10 @@ void CrashHandler::CrashSignalHandler( int signal, siginfo_t *si, const ucontext
BacktraceContext ctx;
GetSignalBacktraceContext( &ctx, uc );
GetBacktrace( crash.BacktracePointers[0], BACKTRACE_MAX_SIZE, &ctx );
#if defined(HAVE_DECL_SIGUSR1)
if( signal == SIGUSR1 )
BacktraceAllThreads( crash );
#endif
strncpy( crash.m_ThreadName[0], RageThread::GetCurThreadName(), sizeof(crash.m_ThreadName[0])-1 );
stepmania/src/archutils/Unix/SignalHandler.cpp
+4 -1
View File
@@ -33,8 +33,11 @@ static int signals[] =
{
SIGALRM, SIGBUS, SIGFPE, SIGHUP, SIGILL, SIGINT, SIGABRT,
SIGQUIT, SIGSEGV, SIGTRAP, SIGTERM, SIGVTALRM, SIGXCPU, SIGXFSZ,
#if defined(HAVE_DECL_SIGPWR) && HAVE_DECL_SIGPWR
#if defined(HAVE_DECL_SIGPWR)
SIGPWR,
#endif
#if defined(HAVE_DECL_SIGUSR1)
SIGUSR1,
#endif
-1
};