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This commit is contained in:
Zhi Guan
2015-08-15 15:02:15 +08:00
parent 06df2fab54
commit 3bdc0ea895
2536 changed files with 417052 additions and 271997 deletions
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46
crypto/s390xcap.c
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@@ -4,34 +4,38 @@
#include <setjmp.h>
#include <signal.h>
extern unsigned long OPENSSL_s390xcap_P;
extern unsigned long OPENSSL_s390xcap_P[];
static sigjmp_buf ill_jmp;
static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); }
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;
{
sigset_t oset;
struct sigaction ill_act, oact;
if (OPENSSL_s390xcap_P) return;
if (OPENSSL_s390xcap_P[0])
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);
OPENSSL_s390xcap_P[0] = 1UL << (8 * sizeof(unsigned long) - 1);
/* 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;
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);
sigaction (SIGILL,&oact,NULL);
sigprocmask(SIG_SETMASK,&oset,NULL);
}
/* 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);
}