mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-18 15:27:48 +01:00
38 lines
926 B
C
38 lines
926 B
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <setjmp.h>
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#include <signal.h>
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extern unsigned long OPENSSL_s390xcap_P[];
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static sigjmp_buf ill_jmp;
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static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); }
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unsigned long OPENSSL_s390x_facilities(void);
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void OPENSSL_cpuid_setup(void)
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{
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sigset_t oset;
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struct sigaction ill_act,oact;
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if (OPENSSL_s390xcap_P[0]) return;
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OPENSSL_s390xcap_P[0] = 1UL<<(8*sizeof(unsigned long)-1);
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memset(&ill_act,0,sizeof(ill_act));
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ill_act.sa_handler = ill_handler;
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sigfillset(&ill_act.sa_mask);
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sigdelset(&ill_act.sa_mask,SIGILL);
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sigdelset(&ill_act.sa_mask,SIGTRAP);
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sigprocmask(SIG_SETMASK,&ill_act.sa_mask,&oset);
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sigaction (SIGILL,&ill_act,&oact);
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/* protection against missing store-facility-list-extended */
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if (sigsetjmp(ill_jmp,1) == 0)
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OPENSSL_s390x_facilities();
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sigaction (SIGILL,&oact,NULL);
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sigprocmask(SIG_SETMASK,&oset,NULL);
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}
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