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| 1 #include <stdio.h> |
| 2 #include <stdlib.h> |
| 3 #include <string.h> |
| 4 #include <setjmp.h> |
| 5 #include <signal.h> |
| 6 |
| 7 extern unsigned long OPENSSL_s390xcap_P; |
| 8 |
| 9 static sigjmp_buf ill_jmp; |
| 10 static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); } |
| 11 |
| 12 unsigned long OPENSSL_s390x_facilities(void); |
| 13 |
| 14 void OPENSSL_cpuid_setup(void) |
| 15 { |
| 16 sigset_t oset; |
| 17 struct sigaction ill_act,oact; |
| 18 |
| 19 if (OPENSSL_s390xcap_P) return; |
| 20 |
| 21 memset(&ill_act,0,sizeof(ill_act)); |
| 22 ill_act.sa_handler = ill_handler; |
| 23 sigfillset(&ill_act.sa_mask); |
| 24 sigdelset(&ill_act.sa_mask,SIGILL); |
| 25 sigdelset(&ill_act.sa_mask,SIGTRAP); |
| 26 sigprocmask(SIG_SETMASK,&ill_act.sa_mask,&oset); |
| 27 sigaction (SIGILL,&ill_act,&oact); |
| 28 |
| 29 /* protection against missing store-facility-list-extended */ |
| 30 if (sigsetjmp(ill_jmp,0) == 0) |
| 31 OPENSSL_s390xcap_P = OPENSSL_s390x_facilities(); |
| 32 else |
| 33 OPENSSL_s390xcap_P = 1UL<<63; |
| 34 |
| 35 sigaction (SIGILL,&oact,NULL); |
| 36 sigprocmask(SIG_SETMASK,&oset,NULL); |
| 37 } |
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