Handle SIGSEGV and SIGABRT signals

SIGSEGV and SIGABRT signals are now correctly handled (blackbox is
dumped and logsys is finalized).

Signed-off-by: zouyu <hopkings2005@gmail.com>
Reviewed-by: Jan Friesse <jfriesse@redhat.com>

exec/main.c

@@ -1350,6 +1350,10 @@ int main (int argc, char **argv, char **envp)
 		SIGUSR2, NULL, sig_diag_handler, NULL);
 	qb_loop_signal_add(corosync_poll_handle, QB_LOOP_HIGH,
 		SIGINT, NULL, sig_exit_handler, NULL);
+	qb_loop_signal_add(corosync_poll_handle, QB_LOOP_HIGH,
+		SIGSEGV, NULL, sigsegv_handler, NULL);
+	qb_loop_signal_add(corosync_poll_handle, QB_LOOP_HIGH,
+		SIGABRT, NULL, sigabrt_handler, NULL);
 	qb_loop_signal_add(corosync_poll_handle, QB_LOOP_HIGH,
 		SIGQUIT, NULL, sig_exit_handler, NULL);
 	qb_loop_signal_add(corosync_poll_handle, QB_LOOP_HIGH,