sigstackgrowth.c revision c45282ada5d2fc41c3a968bf03b0caa51b426b44 
1#include <signal.h>
2#include <stdio.h>
3#include <stdlib.h>
4#include <sys/types.h>
5#include <unistd.h>
6
7static char *deep;
8
9#define SIZE	(4*1024*1024)
10
11static void handler(int sig)
12{
13	char here;
14
15	if (&here < deep) {
16		printf("PASSED\n");
17		exit(0);
18	}
19
20	kill(getpid(), SIGUSR1);
21}
22
23int main()
24{
25	struct sigaction sa;
26
27	char here;
28	deep = &here - SIZE;
29
30	sa.sa_handler = handler;
31	sa.sa_flags = SA_NOMASK;
32	sigemptyset(&sa.sa_mask);
33
34	sigaction(SIGUSR1, &sa, NULL);
35
36	kill(getpid(), SIGUSR1);
37
38	printf("FAILED\n");
39	exit(1);
40}
41