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#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include "tests/sys_mman.h"
static void handler(int sig, siginfo_t *info, void *v)
{
printf("info: sig=%d code=%d addr=%p\n",
info->si_signo, info->si_code, info->si_addr);
exit(0);
}
/* Blocking a fault, ie SIGSEGV, won't work, and is the same as having
the default handler */
int main()
{
int* unmapped_page = get_unmapped_page();
struct sigaction sa;
sigset_t mask;
sa.sa_sigaction = handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_SIGINFO;
sigaction(SIGSEGV, &sa, NULL);
sigfillset(&mask);
sigprocmask(SIG_BLOCK, &mask, NULL);
*(volatile int *)unmapped_page = 213;
return 0;
}
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