void OPENSSL_cpuid_setup(void) { char *e; struct sigaction ill_oact,ill_act; sigset_t oset; static int trigger=0; if (trigger) return; trigger=1; sigfillset(&all_masked); sigdelset(&all_masked,SIGILL); sigdelset(&all_masked,SIGTRAP); #ifdef SIGEMT sigdelset(&all_masked,SIGEMT); #endif sigdelset(&all_masked,SIGFPE); sigdelset(&all_masked,SIGBUS); sigdelset(&all_masked,SIGSEGV); if ((e=getenv("OPENSSL_ppccap")) != NULL) { OPENSSL_ppccap_P=strtoul(e,NULL,0); return; } OPENSSL_ppccap_P = 0; memset(&ill_act,0,sizeof(ill_act)); ill_act.sa_handler = ill_handler; ill_act.sa_mask = all_masked; sigprocmask(SIG_SETMASK,&ill_act.sa_mask,&oset); sigaction(SIGILL,&ill_act,&ill_oact); if (sizeof(size_t)==4) { if (sigsetjmp(ill_jmp,1) == 0) { OPENSSL_ppc64_probe(); OPENSSL_ppccap_P |= PPC_FPU64; } } else { /* * Wanted code detecting POWER6 CPU and setting PPC_FPU64 */ } if (sigsetjmp(ill_jmp,1) == 0) { void OPENSSL_altivec_probe(); OPENSSL_altivec_probe(); OPENSSL_ppccap_P |= PPC_ALTIVEC; } sigaction (SIGILL,&ill_oact,NULL); sigprocmask(SIG_SETMASK,&oset,NULL); }
void OPENSSL_cpuid_setup(void) { char *e; struct sigaction ill_oact, ill_act; sigset_t oset; static int trigger = 0; if (trigger) return; trigger = 1; sigfillset(&all_masked); sigdelset(&all_masked, SIGILL); sigdelset(&all_masked, SIGTRAP); #ifdef SIGEMT sigdelset(&all_masked, SIGEMT); #endif sigdelset(&all_masked, SIGFPE); sigdelset(&all_masked, SIGBUS); sigdelset(&all_masked, SIGSEGV); if ((e = getenv("OPENSSL_ppccap"))) { OPENSSL_ppccap_P = strtoul(e, NULL, 0); return; } OPENSSL_ppccap_P = 0; #if defined(_AIX) if (sizeof(size_t) == 4) { struct utsname uts; # if defined(_SC_AIX_KERNEL_BITMODE) if (sysconf(_SC_AIX_KERNEL_BITMODE) != 64) return; # endif if (uname(&uts) != 0 || atoi(uts.version) < 6) return; } #endif memset(&ill_act, 0, sizeof(ill_act)); ill_act.sa_handler = ill_handler; ill_act.sa_mask = all_masked; sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset); sigaction(SIGILL, &ill_act, &ill_oact); if (sizeof(size_t) == 4) { #ifdef __linux struct utsname uts; if (uname(&uts) == 0 && strcmp(uts.machine, "ppc64") == 0) #endif if (sigsetjmp(ill_jmp, 1) == 0) { OPENSSL_ppc64_probe(); OPENSSL_ppccap_P |= PPC_FPU64; } } else { /* * Wanted code detecting POWER6 CPU and setting PPC_FPU64 */ } if (sigsetjmp(ill_jmp, 1) == 0) { OPENSSL_altivec_probe(); OPENSSL_ppccap_P |= PPC_ALTIVEC; if (sigsetjmp(ill_jmp, 1) == 0) { OPENSSL_crypto207_probe(); OPENSSL_ppccap_P |= PPC_CRYPTO207; } } sigaction(SIGILL, &ill_oact, NULL); sigprocmask(SIG_SETMASK, &oset, NULL); }
void OPENSSL_cpuid_setup(void) { char *e; struct sigaction ill_oact, ill_act; sigset_t oset; static int trigger = 0; if (trigger) return; trigger = 1; if ((e = getenv("OPENSSL_ppccap"))) { OPENSSL_ppccap_P = strtoul(e, NULL, 0); return; } OPENSSL_ppccap_P = 0; #if defined(_AIX) OPENSSL_ppccap_P |= PPC_FPU; if (sizeof(size_t) == 4) { struct utsname uts; # if defined(_SC_AIX_KERNEL_BITMODE) if (sysconf(_SC_AIX_KERNEL_BITMODE) != 64) return; # endif if (uname(&uts) != 0 || atoi(uts.version) < 6) return; } # if defined(__power_set) /* * Value used in __power_set is a single-bit 1<<n one denoting * specific processor class. Incidentally 0xffffffff<<n can be * used to denote specific processor and its successors. */ if (sizeof(size_t) == 4) { /* In 32-bit case PPC_FPU64 is always fastest [if option] */ if (__power_set(0xffffffffU<<13)) /* POWER5 and later */ OPENSSL_ppccap_P |= PPC_FPU64; } else { /* In 64-bit case PPC_FPU64 is fastest only on POWER6 */ if (__power_set(0x1U<<14)) /* POWER6 */ OPENSSL_ppccap_P |= PPC_FPU64; } if (__power_set(0xffffffffU<<14)) /* POWER6 and later */ OPENSSL_ppccap_P |= PPC_ALTIVEC; if (__power_set(0xffffffffU<<16)) /* POWER8 and later */ OPENSSL_ppccap_P |= PPC_CRYPTO207; if (__power_set(0xffffffffU<<17)) /* POWER9 and later */ OPENSSL_ppccap_P |= PPC_MADD300; return; # endif #endif #if defined(__APPLE__) && defined(__MACH__) OPENSSL_ppccap_P |= PPC_FPU; { int val; size_t len = sizeof(val); if (sysctlbyname("hw.optional.64bitops", &val, &len, NULL, 0) == 0) { if (val) OPENSSL_ppccap_P |= PPC_FPU64; } len = sizeof(val); if (sysctlbyname("hw.optional.altivec", &val, &len, NULL, 0) == 0) { if (val) OPENSSL_ppccap_P |= PPC_ALTIVEC; } return; } #endif #ifdef OSSL_IMPLEMENT_GETAUXVAL { unsigned long hwcap = getauxval(HWCAP); unsigned long hwcap2 = getauxval(HWCAP2); if (hwcap & HWCAP_FPU) { OPENSSL_ppccap_P |= PPC_FPU; if (sizeof(size_t) == 4) { /* In 32-bit case PPC_FPU64 is always fastest [if option] */ if (hwcap & HWCAP_PPC64) OPENSSL_ppccap_P |= PPC_FPU64; } else { /* In 64-bit case PPC_FPU64 is fastest only on POWER6 */ if (hwcap & HWCAP_POWER6_EXT) OPENSSL_ppccap_P |= PPC_FPU64; } } if (hwcap & HWCAP_ALTIVEC) { OPENSSL_ppccap_P |= PPC_ALTIVEC; if ((hwcap & HWCAP_VSX) && (hwcap2 & HWCAP_VEC_CRYPTO)) OPENSSL_ppccap_P |= PPC_CRYPTO207; } if (hwcap2 & HWCAP_ARCH_3_00) { OPENSSL_ppccap_P |= PPC_MADD300; } } #endif sigfillset(&all_masked); sigdelset(&all_masked, SIGILL); sigdelset(&all_masked, SIGTRAP); #ifdef SIGEMT sigdelset(&all_masked, SIGEMT); #endif sigdelset(&all_masked, SIGFPE); sigdelset(&all_masked, SIGBUS); sigdelset(&all_masked, SIGSEGV); memset(&ill_act, 0, sizeof(ill_act)); ill_act.sa_handler = ill_handler; ill_act.sa_mask = all_masked; sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset); sigaction(SIGILL, &ill_act, &ill_oact); #ifndef OSSL_IMPLEMENT_GETAUXVAL if (sigsetjmp(ill_jmp,1) == 0) { OPENSSL_fpu_probe(); OPENSSL_ppccap_P |= PPC_FPU; if (sizeof(size_t) == 4) { # ifdef __linux struct utsname uts; if (uname(&uts) == 0 && strcmp(uts.machine, "ppc64") == 0) # endif if (sigsetjmp(ill_jmp, 1) == 0) { OPENSSL_ppc64_probe(); OPENSSL_ppccap_P |= PPC_FPU64; } } else { /* * Wanted code detecting POWER6 CPU and setting PPC_FPU64 */ } } if (sigsetjmp(ill_jmp, 1) == 0) { OPENSSL_altivec_probe(); OPENSSL_ppccap_P |= PPC_ALTIVEC; if (sigsetjmp(ill_jmp, 1) == 0) { OPENSSL_crypto207_probe(); OPENSSL_ppccap_P |= PPC_CRYPTO207; } } if (sigsetjmp(ill_jmp, 1) == 0) { OPENSSL_madd300_probe(); OPENSSL_ppccap_P |= PPC_MADD300; } #endif if (sigsetjmp(ill_jmp, 1) == 0) { OPENSSL_rdtsc_mftb(); OPENSSL_ppccap_P |= PPC_MFTB; } else if (sigsetjmp(ill_jmp, 1) == 0) { OPENSSL_rdtsc_mfspr268(); OPENSSL_ppccap_P |= PPC_MFSPR268; } sigaction(SIGILL, &ill_oact, NULL); sigprocmask(SIG_SETMASK, &oset, NULL); }