UnixPlatformCrashContext.cpp File Reference

#include "Unix/UnixPlatformCrashContext.h"
#include "Containers/StringConv.h"
#include "HAL/PlatformStackWalk.h"
#include "HAL/PlatformTime.h"
#include "HAL/PlatformProcess.h"
#include "HAL/PlatformOutputDevices.h"
#include "Logging/LogMacros.h"
#include "CoreGlobals.h"
#include "HAL/FileManager.h"
#include "Misc/Parse.h"
#include "Misc/CommandLine.h"
#include "Misc/Paths.h"
#include "Misc/FileHelper.h"
#include "Delegates/IDelegateInstance.h"
#include "Misc/ConfigCacheIni.h"
#include "Misc/Guid.h"
#include "Misc/OutputDeviceRedirector.h"
#include "Misc/OutputDeviceError.h"
#include "Misc/OutputDeviceArchiveWrapper.h"
#include "Containers/Ticker.h"
#include "Misc/FeedbackContext.h"
#include "Misc/App.h"
#include "Misc/EngineVersion.h"
#include "Misc/StringBuilder.h"
#include "HAL/PlatformMallocCrash.h"
#include "Unix/UnixPlatformRealTimeSignals.h"
#include "Unix/UnixPlatformRunnableThread.h"
#include "HAL/ExceptionHandling.h"
#include "Stats/Stats.h"
#include "HAL/ThreadHeartBeat.h"
#include "BuildSettings.h"
#include <sys/mman.h>
#include <atomic>

Classes
struct	UnixCrashReporterTracker::CrashReporterProcess

Namespaces
namespace	UnixCrashReporterTracker

Macros
#define	HANDLE_CASE(a, b)   case a: ErrorString += TEXT(#a ": " b); break;
#define	SERVER_MAX_CONCURRENT_REPORTS   1

Enumerations
enum class	UnixCrashReporterTracker::SlotStatus : uint32 {   UnixCrashReporterTracker::Available , UnixCrashReporterTracker::Spawning , UnixCrashReporterTracker::Uploading , UnixCrashReporterTracker::Closing ,   UnixCrashReporterTracker::Killing }

Functions
FString	DescribeSignal (int32 Signal, siginfo_t *Info, ucontext_t *Context)
void	GracefulTerminationHandler (int32 Signal, siginfo_t *Info, void *Context)
void	CreateExceptionInfoString (int32 Signal, siginfo_t *Info, ucontext_t *Context)
std::atomic< uint32 >	UnixCrashReporterTracker::NumUploadingProcesses (0)
bool	UnixCrashReporterTracker::Tick (float DeltaTime)
void	UnixCrashReporterTracker::PreInit ()
bool	UnixCrashReporterTracker::WaitForProcWithTimeout (FProcHandle Proc, const double TimeoutInSec, const double SleepIntervalInSec)
void	UnixCrashReporterTracker::RemoveValidCrashReportTickerForChildProcess ()
void	DefaultCrashHandler (const FUnixCrashContext &Context)
void	PlatformCrashHandler (int32 Signal, siginfo_t *Info, void *Context)
void	ThreadStackWalker (int32 Signal, siginfo_t *Info, void *Context)

Variables
CORE_API bool	GIsGPUCrashed
volatile sig_atomic_t	GEnteredSignalHandler = 0
CrashReporterProcess	UnixCrashReporterTracker::Processes [4]
uint32	UnixCrashReporterTracker::MaxProcessSlots
void(*	GCrashHandlerPointer )(const FGenericCrashContext &Context) = NULL
int32 CORE_API	GMaxNumberFileMappingCache
thread_local const TCHAR *	GCrashErrorMessage
thread_local void *	GCrashErrorProgramCounter
thread_local ECrashContextType	GCrashErrorType
uint64	GCrashHandlerStackSize
int32	GSignalToDefault

Macro Definition Documentation

HANDLE_CASE

#define HANDLE_CASE	(		a,
			b
	)		case a: ErrorString += TEXT(#a ": " b); break;

SERVER_MAX_CONCURRENT_REPORTS

#define SERVER_MAX_CONCURRENT_REPORTS   1

Function Documentation

CreateExceptionInfoString()

void CreateExceptionInfoString	(	int32	Signal,
		siginfo_t *	Info,
		ucontext_t *	Context
	)

DefaultCrashHandler()

void DefaultCrashHandler

(

const FUnixCrashContext &

Context

)

Good enough default crash reporter.

DescribeSignal()

FString DescribeSignal	(	int32	Signal,
		siginfo_t *	Info,
		ucontext_t *	Context
	)

GracefulTerminationHandler()

void GracefulTerminationHandler	(	int32	Signal,
		siginfo_t *	Info,
		void *	Context
	)

Handles graceful termination. Gives time to exit gracefully, but second signal will quit immediately.

PlatformCrashHandler()

void PlatformCrashHandler	(	int32	Signal,
		siginfo_t *	Info,
		void *	Context
	)

True system-specific crash handler that gets called first

ThreadStackWalker()

void ThreadStackWalker	(	int32	Signal,
		siginfo_t *	Info,
		void *	Context
	)

Variable Documentation

GCrashErrorMessage

thread_local const TCHAR* GCrashErrorMessage

extern

Message for the assert triggered on this thread

GCrashErrorProgramCounter

thread_local void* GCrashErrorProgramCounter

extern

GCrashErrorType

thread_local ECrashContextType GCrashErrorType

extern

GCrashHandlerPointer

void(* GCrashHandlerPointer) (const FGenericCrashContext &Context)

(

const FGenericCrashContext &

Context

)

= NULL

Global pointer to crash handler

GCrashHandlerStackSize

uint64 GCrashHandlerStackSize

extern

GEnteredSignalHandler

volatile sig_atomic_t GEnteredSignalHandler = 0

GIsGPUCrashed

CORE_API bool GIsGPUCrashed

extern

GMaxNumberFileMappingCache

int32 CORE_API GMaxNumberFileMappingCache

extern

GSignalToDefault

int32 GSignalToDefault

extern