1#include <stdio.h>
2#include <stdlib.h>
3#include <string.h>
4#include <setjmp.h>
5#include <signal.h>
6
7extern unsigned long OPENSSL_s390xcap_P[];
8
9static sigjmp_buf ill_jmp;
10static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); }
11
12unsigned long OPENSSL_s390x_facilities(void);
13
14void OPENSSL_cpuid_setup(void)
15	{
16	sigset_t oset;
17	struct sigaction ill_act,oact;
18
19	if (OPENSSL_s390xcap_P[0]) return;
20
21	OPENSSL_s390xcap_P[0] = 1UL<<(8*sizeof(unsigned long)-1);
22
23	memset(&ill_act,0,sizeof(ill_act));
24	ill_act.sa_handler = ill_handler;
25	sigfillset(&ill_act.sa_mask);
26	sigdelset(&ill_act.sa_mask,SIGILL);
27	sigdelset(&ill_act.sa_mask,SIGTRAP);
28	sigprocmask(SIG_SETMASK,&ill_act.sa_mask,&oset);
29	sigaction (SIGILL,&ill_act,&oact);
30
31	/* protection against missing store-facility-list-extended */
32	if (sigsetjmp(ill_jmp,1) == 0)
33		OPENSSL_s390x_facilities();
34
35	sigaction (SIGILL,&oact,NULL);
36	sigprocmask(SIG_SETMASK,&oset,NULL);
37	}
38