42 lines
1 KiB
C
42 lines
1 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <setjmp.h>
|
|
#include <signal.h>
|
|
#include "cryptlib.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[0])
|
|
return;
|
|
|
|
OPENSSL_s390xcap_P[0] = 1UL << (8 * sizeof(unsigned long) - 1);
|
|
|
|
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, 1) == 0)
|
|
OPENSSL_s390x_facilities();
|
|
|
|
sigaction(SIGILL, &oact, NULL);
|
|
sigprocmask(SIG_SETMASK, &oset, NULL);
|
|
}
|