EXCEPTION_DISPOSITION exceptionHandler(struct _EXCEPTION_RECORD* pExceptionRec, void* pEstablisherFrame, struct _CONTEXT* pContextRecord, void* pDispatcherContext)
{
fflush(stderr);
fflush(stdout);
static int running=0;
if(running)
exit(1);
running=1;
if(mysaveFunction) mysaveFunction();
if(myFatalFunction) myFatalFunction ("Crash","Press ok to build crash info");
void* currentProcessId = GetCurrentProcess();
SymInitialize(currentProcessId, NULL, TRUE);
dumpExceptionInfo(currentProcessId, pExceptionRec, pContextRecord);
fflush(stdout);
dumpBackTrace(currentProcessId);
SymCleanup(currentProcessId);
exit(1);
}
void WINAPI EXC_RtlRaiseException( EXCEPTION_RECORD *rec, CONTEXT *context )
{
PEXCEPTION_FRAME frame, dispatch, nested_frame;
EXCEPTION_RECORD newrec;
EXCEPTION_POINTERS epointers;
DWORD res, c;
if (((unsigned long)(rec->ExceptionAddress) & 0xffff0000) == 0xdead0000)
ERR("possibly COM stub exception at %p\n", rec->ExceptionAddress);
TRACE( "code=%lx flags=%lx addr=%p\n", rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress );
for (c=0; c<rec->NumberParameters; c++) TRACE(" info[%ld]=%08lx\n", c, rec->ExceptionInformation[c]);
if (rec->ExceptionCode == EXCEPTION_WINE_STUB) TRACE(" stub=%s\n", (char*)rec->ExceptionInformation[1]);
/* TRACE( " backtrace %s\n", debugstack(10, context) ); */
if (send_debug_event( rec, TRUE, context ) == DBG_CONTINUE) return; /* continue execution */
SIGNAL_Unblock(); /* we may be in a signal handler, and exception handlers may jump out */
frame = NtCurrentTeb()->except;
nested_frame = NULL;
while (frame != (PEXCEPTION_FRAME)0xFFFFFFFF)
{
/* Check frame address */
if (((void*)frame < NtCurrentTeb()->stack_low) ||
((void*)(frame+1) > NtCurrentTeb()->stack_top) ||
(int)frame & 3)
{
WARN ("Marking as invalid. Frame: %p, stack_low: %p, Frame+1: %p, stack_top: %p, frame&3: %d\n",
(void *)frame, NtCurrentTeb ()->stack_low, (void *)(frame+1),
NtCurrentTeb ()->stack_top, (int)frame & 3);
rec->ExceptionFlags |= EH_STACK_INVALID;
break;
}
/* Call handler */
res = EXC_CallHandler( rec, frame, context, &dispatch, frame->Handler, EXC_RaiseHandler );
if (frame == nested_frame)
{
/* no longer nested */
nested_frame = NULL;
rec->ExceptionFlags &= ~EH_NESTED_CALL;
}
switch(res)
{
case ExceptionContinueExecution:
if (!(rec->ExceptionFlags & EH_NONCONTINUABLE)) return;
newrec.ExceptionCode = STATUS_NONCONTINUABLE_EXCEPTION;
newrec.ExceptionFlags = EH_NONCONTINUABLE;
newrec.ExceptionRecord = rec;
newrec.NumberParameters = 0;
RtlRaiseException( &newrec ); /* never returns */
break;
case ExceptionContinueSearch:
break;
case ExceptionNestedException:
if (nested_frame < dispatch) nested_frame = dispatch;
rec->ExceptionFlags |= EH_NESTED_CALL;
break;
case ExceptionCollidedUnwind:
/* Check for having gotten into an infinite exception loop due to
a busted exception frame somewhere */
if (rec->ExceptionCode == STATUS_INVALID_DISPOSITION)
EXC_DefaultHandling (rec, context);
default:
newrec.ExceptionCode = STATUS_INVALID_DISPOSITION;
newrec.ExceptionFlags = EH_NONCONTINUABLE;
newrec.ExceptionRecord = rec;
newrec.NumberParameters = 0;
/* dump the crash report here since the next RtlRaiseException()
call will never return and the exception info from this point on will
be clobbered. */
epointers.ContextRecord = context;
epointers.ExceptionRecord = rec;
if (!dumpExceptionInfo(&epointers, NTDLL_CRASHREPORTFILENAME, NTDLL_MINIDUMPFILENAME))
ERR("ERROR-> could not dump the crash report\n");
RtlRaiseException( &newrec ); /* never returns */
break;
}
frame = frame->Prev;
}
EXC_DefaultHandling( rec, context );
}
