CrashRecoveryContext.cpp File Reference

#include "llvm/Support/CrashRecoveryContext.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ExitCodes.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/ThreadLocal.h"
#include <mutex>
#include <setjmp.h>
#include <signal.h>

Include dependency graph for CrashRecoveryContext.cpp:

Go to the source code of this file.

Functions
static void	installExceptionOrSignalHandlers ()
static void	uninstallExceptionOrSignalHandlers ()
static void	CrashRecoverySignalHandler (int Signal)
static void	setThreadBackgroundPriority ()
static bool	hasThreadBackgroundPriority ()
static void	RunSafelyOnThread_Dispatch (void *UserData)

Variables
static ManagedStatic< std::mutex >	gCrashRecoveryContextMutex
static bool	gCrashRecoveryEnabled = false
static ManagedStatic< sys::ThreadLocal< const CrashRecoveryContext > >	tlIsRecoveringFromCrash
static const int	Signals []
static const unsigned	NumSignals = array_lengthof(Signals)
static struct sigaction	PrevActions [NumSignals]

Function Documentation

CrashRecoverySignalHandler()

static void CrashRecoverySignalHandler ( int  Signal )

static

Definition at line 350 of file CrashRecoveryContext.cpp.

References llvm::CrashRecoveryContext::Disable().

Referenced by installExceptionOrSignalHandlers().

hasThreadBackgroundPriority()

static bool hasThreadBackgroundPriority ( )

static

Definition at line 473 of file CrashRecoveryContext.cpp.

Referenced by llvm::CrashRecoveryContext::RunSafelyOnThread().

installExceptionOrSignalHandlers()

static void installExceptionOrSignalHandlers ( )

static

Definition at line 391 of file CrashRecoveryContext.cpp.

References CrashRecoverySignalHandler(), i, NumSignals, PrevActions, and Signals.

Referenced by llvm::CrashRecoveryContext::Enable().

RunSafelyOnThread_Dispatch()

static void RunSafelyOnThread_Dispatch ( void *  UserData )

static

Definition at line 490 of file CrashRecoveryContext.cpp.

References Info, and setThreadBackgroundPriority().

Referenced by llvm::CrashRecoveryContext::RunSafelyOnThread().

setThreadBackgroundPriority()

static void setThreadBackgroundPriority ( )

static

Definition at line 467 of file CrashRecoveryContext.cpp.

Referenced by RunSafelyOnThread_Dispatch().

uninstallExceptionOrSignalHandlers()

static void uninstallExceptionOrSignalHandlers ( )

static

Definition at line 403 of file CrashRecoveryContext.cpp.

References i, NumSignals, PrevActions, and Signals.

Referenced by llvm::CrashRecoveryContext::Disable().

Variable Documentation

gCrashRecoveryContextMutex

ManagedStatic<std::mutex> gCrashRecoveryContextMutex

static

Definition at line 87 of file CrashRecoveryContext.cpp.

Referenced by llvm::CrashRecoveryContext::Disable(), and llvm::CrashRecoveryContext::Enable().

gCrashRecoveryEnabled

bool gCrashRecoveryEnabled = false

static

Definition at line 88 of file CrashRecoveryContext.cpp.

Referenced by llvm::CrashRecoveryContext::Disable(), llvm::CrashRecoveryContext::Enable(), llvm::CrashRecoveryContext::GetCurrent(), and llvm::CrashRecoveryContext::RunSafely().

NumSignals

const unsigned NumSignals = array_lengthof(Signals)

static

Definition at line 347 of file CrashRecoveryContext.cpp.

Referenced by installExceptionOrSignalHandlers(), and uninstallExceptionOrSignalHandlers().

PrevActions

struct sigaction PrevActions[NumSignals]

static

Definition at line 348 of file CrashRecoveryContext.cpp.

Referenced by installExceptionOrSignalHandlers(), and uninstallExceptionOrSignalHandlers().

Signals

const int Signals[]

static

Initial value:

=
    { SIGABRT, SIGBUS, SIGFPE, SIGILL, SIGSEGV, SIGTRAP }

Definition at line 345 of file CrashRecoveryContext.cpp.

Referenced by installExceptionOrSignalHandlers(), and uninstallExceptionOrSignalHandlers().

tlIsRecoveringFromCrash

ManagedStatic<sys::ThreadLocal<const CrashRecoveryContext> > tlIsRecoveringFromCrash

static

Definition at line 91 of file CrashRecoveryContext.cpp.

Referenced by llvm::CrashRecoveryContext::isRecoveringFromCrash(), and llvm::CrashRecoveryContext::~CrashRecoveryContext().