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Merge pull request #716 from gedalia/gpasternak/crash_handler_fix

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This change makes the crash handler only install when tracy is connected.
This commit is contained in:
Bartosz Taudul 2024-01-24 21:12:17 +01:00 committed by GitHub
commit 1354205db8
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GPG Key ID: B5690EEEBB952194
2 changed files with 57 additions and 37 deletions
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91
public/client/TracyProfiler.cpp
View File

@ -1440,6 +1440,56 @@ Profiler::Profiler()
#endif
}
void Profiler::InstallCrashHandler()
{
#if defined __linux__ && !defined TRACY_NO_CRASH_HANDLER
struct sigaction threadFreezer = {};
threadFreezer.sa_handler = ThreadFreezer;
sigaction( TRACY_CRASH_SIGNAL, &threadFreezer, &m_prevSignal.pwr );
struct sigaction crashHandler = {};
crashHandler.sa_sigaction = CrashHandler;
crashHandler.sa_flags = SA_SIGINFO;
sigaction( SIGILL, &crashHandler, &m_prevSignal.ill );
sigaction( SIGFPE, &crashHandler, &m_prevSignal.fpe );
sigaction( SIGSEGV, &crashHandler, &m_prevSignal.segv );
sigaction( SIGPIPE, &crashHandler, &m_prevSignal.pipe );
sigaction( SIGBUS, &crashHandler, &m_prevSignal.bus );
sigaction( SIGABRT, &crashHandler, &m_prevSignal.abrt );
#endif
#if defined _WIN32 && !defined TRACY_UWP && !defined TRACY_NO_CRASH_HANDLER
m_exceptionHandler = AddVectoredExceptionHandler( 1, CrashFilter );
#endif
#ifndef TRACY_NO_CRASH_HANDLER
m_crashHandlerInstalled = true;
#endif
}
void Profiler::RemoveCrashHandler()
{
#if defined _WIN32 && !defined TRACY_UWP
if( m_crashHandlerInstalled ) RemoveVectoredExceptionHandler( m_exceptionHandler );
#endif
#if defined __linux__ && !defined TRACY_NO_CRASH_HANDLER
if( m_crashHandlerInstalled )
{
sigaction( TRACY_CRASH_SIGNAL, &m_prevSignal.pwr, nullptr );
sigaction( SIGILL, &m_prevSignal.ill, nullptr );
sigaction( SIGFPE, &m_prevSignal.fpe, nullptr );
sigaction( SIGSEGV, &m_prevSignal.segv, nullptr );
sigaction( SIGPIPE, &m_prevSignal.pipe, nullptr );
sigaction( SIGBUS, &m_prevSignal.bus, nullptr );
sigaction( SIGABRT, &m_prevSignal.abrt, nullptr );
}
#endif
m_crashHandlerInstalled = false;
}
void Profiler::SpawnWorkerThreads()
{
#ifdef TRACY_HAS_SYSTEM_TRACING
@ -1477,27 +1527,6 @@ void Profiler::SpawnWorkerThreads()
# ifdef TRACY_HAS_CALLSTACK
s_symbolThreadId = GetThreadId( s_symbolThread->Handle() );
# endif
m_exceptionHandler = AddVectoredExceptionHandler( 1, CrashFilter );
#endif
#if defined __linux__ && !defined TRACY_NO_CRASH_HANDLER
struct sigaction threadFreezer = {};
threadFreezer.sa_handler = ThreadFreezer;
sigaction( TRACY_CRASH_SIGNAL, &threadFreezer, &m_prevSignal.pwr );
struct sigaction crashHandler = {};
crashHandler.sa_sigaction = CrashHandler;
crashHandler.sa_flags = SA_SIGINFO;
sigaction( SIGILL, &crashHandler, &m_prevSignal.ill );
sigaction( SIGFPE, &crashHandler, &m_prevSignal.fpe );
sigaction( SIGSEGV, &crashHandler, &m_prevSignal.segv );
sigaction( SIGPIPE, &crashHandler, &m_prevSignal.pipe );
sigaction( SIGBUS, &crashHandler, &m_prevSignal.bus );
sigaction( SIGABRT, &crashHandler, &m_prevSignal.abrt );
#endif
#ifndef TRACY_NO_CRASH_HANDLER
m_crashHandlerInstalled = true;
#endif
#ifdef TRACY_HAS_CALLSTACK
@ -1511,22 +1540,7 @@ Profiler::~Profiler()
{
m_shutdown.store( true, std::memory_order_relaxed );
#if defined _WIN32 && !defined TRACY_UWP
if( m_crashHandlerInstalled ) RemoveVectoredExceptionHandler( m_exceptionHandler );
#endif
#if defined __linux__ && !defined TRACY_NO_CRASH_HANDLER
if( m_crashHandlerInstalled )
{
sigaction( TRACY_CRASH_SIGNAL, &m_prevSignal.pwr, nullptr );
sigaction( SIGILL, &m_prevSignal.ill, nullptr );
sigaction( SIGFPE, &m_prevSignal.fpe, nullptr );
sigaction( SIGSEGV, &m_prevSignal.segv, nullptr );
sigaction( SIGPIPE, &m_prevSignal.pipe, nullptr );
sigaction( SIGBUS, &m_prevSignal.bus, nullptr );
sigaction( SIGABRT, &m_prevSignal.abrt, nullptr );
}
#endif
RemoveCrashHandler();
#ifdef TRACY_HAS_SYSTEM_TRACING
if( s_sysTraceThread )
@ -1849,6 +1863,7 @@ void Profiler::Worker()
m_connectionId.fetch_add( 1, std::memory_order_release );
#endif
m_isConnected.store( true, std::memory_order_release );
InstallCrashHandler();
HandshakeStatus handshake = HandshakeWelcome;
m_sock->Send( &handshake, sizeof( handshake ) );
@ -1951,6 +1966,8 @@ void Profiler::Worker()
if( ShouldExit() ) break;
m_isConnected.store( false, std::memory_order_release );
RemoveCrashHandler();
#ifdef TRACY_ON_DEMAND
m_bufferOffset = 0;
m_bufferStart = 0;

3
public/client/TracyProfiler.hpp
View File

@ -798,6 +798,9 @@ private:
void HandleSymbolQueueItem( const SymbolQueueItem& si );
#endif
void InstallCrashHandler();
void RemoveCrashHandler();
void ClearQueues( tracy::moodycamel::ConsumerToken& token );
void ClearSerial();
DequeueStatus Dequeue( tracy::moodycamel::ConsumerToken& token );