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Add automatic stack dumping on SIGSEGV and SIGQUIT

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Original commit message from CVS:
Add automatic stack dumping on SIGSEGV and SIGQUIT
This commit is contained in:
David Schleef 2002-11-14 02:49:16 +00:00
parent 9d804f0b00
commit 96b9f9d5d1
1 changed files with 71 additions and 0 deletions
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71
tools/gst-launch.c
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@ -1,5 +1,7 @@
#include <string.h>
#include <stdlib.h>
#include <signal.h>
#include <sys/wait.h>
#include <gst/gst.h>
static guint64 iterations = 0;
@ -104,6 +106,72 @@ xmllaunch_parse_cmdline (const gchar **argv)
return l->data;
}
extern volatile gboolean glib_on_error_halt;
void fault_restore(void);
void fault_handler(int signum, siginfo_t *si, void *misc)
{
int spinning = TRUE;
fault_restore();
if(si->si_signo == SIGSEGV){
g_print ("Caught SIGSEGV accessing address %p\n", si->si_addr);
}else if(si->si_signo == SIGQUIT){
g_print ("Caught SIGQUIT\n");
}else{
g_print ("signo: %d\n",si->si_signo);
g_print ("errno: %d\n",si->si_errno);
g_print ("code: %d\n",si->si_code);
}
glib_on_error_halt = FALSE;
g_on_error_stack_trace("gst-launch");
wait(NULL);
#if 1
/* FIXME how do we know if we were run by libtool? */
g_print("Spinning. Please run 'gdb gst-launch %d' to continue debugging, "
"Ctrl-C to quit, or Ctrl-\\ to dump core.\n",
getpid());
while(spinning)usleep(1000000);
#else
/* This spawns a gdb and attaches it to gst-launch. */
{
char str[40];
sprintf(str,"gdb -quiet gst-launch %d",getpid());
system(str);
}
_exit(0);
#endif
}
void fault_restore(void)
{
struct sigaction action;
memset(&action,0,sizeof(action));
action.sa_handler = SIG_DFL;
sigaction(SIGSEGV, &action, NULL);
sigaction(SIGQUIT, &action, NULL);
}
void fault_setup(void)
{
struct sigaction action;
memset(&action,0,sizeof(action));
action.sa_sigaction = fault_handler;
action.sa_flags = SA_SIGINFO;
sigaction(SIGSEGV, &action, NULL);
sigaction(SIGQUIT, &action, NULL);
}
int
main(int argc, char *argv[])
{
@ -127,6 +195,8 @@ main(int argc, char *argv[])
free (malloc (8)); /* -lefence */
fault_setup();
gst_init_with_popt_table (&argc, &argv, options);
/* make a null-terminated version of argv */
@ -190,3 +260,4 @@ main(int argc, char *argv[])
return 0;
}