mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-24 11:45:27 +01:00
38 lines
926 B
C
38 lines
926 B
C
#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[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);
|
|
}
|