void gw_backtrace(void **stack_frames, size_t size, int lock)
{
#if HAVE_BACKTRACE
void *frames[50];
size_t i;
char **strings;
if (stack_frames == NULL) {
stack_frames = frames;
size = backtrace(stack_frames, sizeof(frames) / sizeof(void*));
}
strings = backtrace_symbols(stack_frames, size);
if (strings) {
for (i = 0; i < size; i++)
gw_panic_output(0, "%s", strings[i]);
}
else { /* hmm, no memory available */
for (i = 0; i < size; i++)
gw_panic_output(0, "%p", stack_frames[i]);
}
/*
* Note: we must call gw_native_free directly because if gw_free points to gw_check_free we could
* panic's and we have endless loop with SEGFAULT at the end.
*/
gw_native_free(strings);
#endif
}
void gw_panic(int err, const char *fmt, ...)
{
/*
* we don't want PANICs to spread accross smsc logs, so
* this will be always within the main core log.
*/
FUNCTION_GUTS(GW_PANIC, "");
#ifdef HAVE_BACKTRACE
{
void *stack_frames[50];
size_t size, i;
char **strings;
size = backtrace(stack_frames, sizeof(stack_frames) / sizeof(void*));
strings = backtrace_symbols(stack_frames, size);
if (strings) {
for (i = 0; i < size; i++)
gw_panic_output(0, "%s", strings[i]);
}
else { /* hmm, no memory available */
for (i = 0; i < size; i++)
gw_panic_output(0, "%p", stack_frames[i]);
}
/*
* Note: we don't free 'strings' array because gw_free could panic's and we
* have endless loop with SEGFAULT at the end. And this doesn't care
* us in any case, because we are panic's and exiting immediately. (alex)
*/
}
#endif
#ifdef SEGFAULT_PANIC
*((char*)0) = 0;
#endif
exit(EXIT_FAILURE);
}
