/// PrintCurStackTrace - Print the current stack trace to the specified stream.
static void PrintCurStackTrace(raw_ostream &OS) {
// Don't print an empty trace.
if (PrettyStackTraceHead.get() == 0) return;
// If there are pretty stack frames registered, walk and emit them.
OS << "Stack dump:\n";
PrintStack(PrettyStackTraceHead.get(), OS);
OS.flush();
}
PrettyStackTraceEntry::PrettyStackTraceEntry() {
// The first time this is called, we register the crash printer.
static bool HandlerRegistered = RegisterCrashPrinter();
(void)HandlerRegistered;
// Link ourselves.
NextEntry = PrettyStackTraceHead.get();
PrettyStackTraceHead.set(this);
}
void CrashRecoveryContext::Disable() {
sys::ScopedLock L(*gCrashRecoveryContextMutex);
if (!gCrashRecoveryEnabled)
return;
gCrashRecoveryEnabled = false;
PVOID currentHandle = const_cast<PVOID>(sCurrentExceptionHandle.get());
if (currentHandle) {
// Now we can remove the vectored exception handler from the chain
::RemoveVectoredExceptionHandler(currentHandle);
// Reset the handle in our thread-local set.
sCurrentExceptionHandle.set(NULL);
}
}
bool CrashRecoveryContext::isRecoveringFromCrash() {
return tlIsRecoveringFromCrash.get() != 0;
}
PrettyStackTraceEntry::~PrettyStackTraceEntry() {
assert(PrettyStackTraceHead.get() == this &&
"Pretty stack trace entry destruction is out of order");
PrettyStackTraceHead.set(getNextEntry());
}