SIGSEGV benchmark

sig.c

#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <setjmp.h>

sigjmp_buf target;

static void handler(int sig, siginfo_t *si, void *unused)
{
    siglongjmp(target, 1);
}

int main(int argc, char *argv[])
{
    char *p;
    long long int count = 0;
    struct sigaction sa;

    sa.sa_flags = SA_SIGINFO;
    sigemptyset(&sa.sa_mask);
    sa.sa_sigaction = handler;
    if (sigaction(SIGSEGV, &sa, NULL) == -1) {
        perror("sigaction");
        return 1;
    }

    p = NULL;
    sigsetjmp(target, 1);
    count++;
    if (count == 1000000) {
        printf("Done\n");
        exit(0);
    }
    *p = 11; // SIGSEGV

    return 0;
}