#include <string.h>
#include <setjmp.h>
#include <signal.h>
+#include <unistd.h>
+#if defined(__linux) || defined(_AIX)
+#include <sys/utsname.h>
+#endif
+#include <crypto.h>
#include <openssl/bn.h>
#define PPC_FPU64 (1<<0)
+#define PPC_ALTIVEC (1<<1)
static int OPENSSL_ppccap_P = 0;
if (sizeof(size_t)==4)
{
#if (defined(__APPLE__) && defined(__MACH__))
- if ((OPENSSL_ppccap_P&PPC_FPU64))
+ if (num>=8 && (num&3)==0 && (OPENSSL_ppccap_P&PPC_FPU64))
return bn_mul_mont_fpu64(rp,ap,bp,np,n0,num);
#else
/* boundary of 32 was experimentally determined on
#endif
}
else if ((OPENSSL_ppccap_P&PPC_FPU64))
- /* this is a "must" on Power 6, but run-time detection
+ /* this is a "must" on POWER6, but run-time detection
* is not implemented yet... */
return bn_mul_mont_fpu64(rp,ap,bp,np,n0,num);
static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); }
void OPENSSL_ppc64_probe(void);
+void OPENSSL_altivec_probe(void);
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);
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)
{
- struct sigaction ill_oact,ill_act;
- sigset_t oset;
-
- 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 (sigsetjmp(ill_jmp,0) == 0)
+#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
- {
- OPENSSL_ppccap_P &= ~PPC_FPU64;
- }
- sigaction (SIGILL,&ill_oact,NULL);
- sigprocmask(SIG_SETMASK,&oset,NULL);
}
+ else
+ {
+ /*
+ * Wanted code detecting POWER6 CPU and setting PPC_FPU64
+ */
+ }
+
+ if (sigsetjmp(ill_jmp,1) == 0)
+ {
+ OPENSSL_altivec_probe();
+ OPENSSL_ppccap_P |= PPC_ALTIVEC;
+ }
+
+ sigaction (SIGILL,&ill_oact,NULL);
+ sigprocmask(SIG_SETMASK,&oset,NULL);
}