Ejemplo n.º 1
0
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);
}
Ejemplo n.º 2
0
/// 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();
}
CrashRecoveryContext::~CrashRecoveryContext() {
  // Reclaim registered resources.
  CrashRecoveryContextCleanup *i = head;
  tlIsRecoveringFromCrash.set(head);
  while (i) {
    CrashRecoveryContextCleanup *tmp = i;
    i = tmp->next;
    tmp->cleanupFired = true;
    tmp->recoverResources();
    delete tmp;
  }
  tlIsRecoveringFromCrash.erase();
  
  CrashRecoveryContextImpl *CRCI = (CrashRecoveryContextImpl *) Impl;
  delete CRCI;
}
Ejemplo n.º 4
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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);
  }
}
Ejemplo n.º 5
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void CrashRecoveryContext::Enable() {
  sys::ScopedLock L(*gCrashRecoveryContextMutex);

  if (gCrashRecoveryEnabled)
    return;

  gCrashRecoveryEnabled = true;

  // We can set up vectored exception handling now.  We will install our
  // handler as the front of the list, though there's no assurances that
  // it will remain at the front (another call could install itself before
  // our handler).  This 1) isn't likely, and 2) shouldn't cause problems.
  PVOID handle = ::AddVectoredExceptionHandler(1, ExceptionHandler);
  sCurrentExceptionHandle.set(handle);
}
bool CrashRecoveryContext::isRecoveringFromCrash() {
  return tlIsRecoveringFromCrash.get() != 0;
}
Ejemplo n.º 7
0
PrettyStackTraceEntry::~PrettyStackTraceEntry() {
  assert(PrettyStackTraceHead.get() == this &&
         "Pretty stack trace entry destruction is out of order");
  PrettyStackTraceHead.set(getNextEntry());
}