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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#include <signal.h>
extern unsigned long OPENSSL_s390xcap_P;
static sigjmp_buf ill_jmp;
static void ill_handler(int sig)
{
siglongjmp(ill_jmp, sig);
}
unsigned long OPENSSL_s390x_facilities(void);
void OPENSSL_cpuid_setup(void)
{
sigset_t oset;
struct sigaction ill_act, oact;
if (OPENSSL_s390xcap_P)
return;
memset(&ill_act, 0, sizeof(ill_act));
ill_act.sa_handler = ill_handler;
sigfillset(&ill_act.sa_mask);
sigdelset(&ill_act.sa_mask, SIGILL);
sigdelset(&ill_act.sa_mask, SIGTRAP);
sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset);
sigaction(SIGILL, &ill_act, &oact);
/* protection against missing store-facility-list-extended */
if (sigsetjmp(ill_jmp, 0) == 0)
OPENSSL_s390xcap_P = OPENSSL_s390x_facilities();
else
OPENSSL_s390xcap_P = 1UL << 63;
sigaction(SIGILL, &oact, NULL);
sigprocmask(SIG_SETMASK, &oset, NULL);
}
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