[PD] Trying to track a ghost pdtk_canvas_getscroll call
Ivica Ico Bukvic
ico at vt.edu
Sun Nov 21 16:40:26 CET 2010
Hi Mathieu,
This is a great advice! However, when adding blargh() function from the
gridflow.c inside the sys_vgui (s_inter.c) so that when the debug is on
it outptus a trace for each call, it appears it only manages to do one
level which is obviously the sys_vgui call itself. Why is it not able to
trace further back?
void blargh(void) {
#ifdef MACOSX
fprintf(stderr,"unhandled exception\n");
#else
int i;
void *array[25];
int nSize = backtrace(array, 25);
char **symbols = backtrace_symbols(array, nSize);
for (i=0; i<nSize; i++) fprintf(stderr,"%d: %s\n",i,symbols[i]);
free(symbols);
#endif
}
void sys_vgui(char *fmt, ...)
{
<snip>
if (sys_debuglevel & DEBUG_MESSUP) {
blargh();
fprintf(stderr, "%s", sys_guibuf + sys_guibufhead);
}
<snip>
}
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