aboutsummaryrefslogtreecommitdiffstats
path: root/crypto/ppccap.c
diff options
context:
space:
mode:
Diffstat (limited to 'crypto/ppccap.c')
-rw-r--r--crypto/ppccap.c189
1 files changed, 96 insertions, 93 deletions
diff --git a/crypto/ppccap.c b/crypto/ppccap.c
index f71ba66aa382..5242294310b1 100644
--- a/crypto/ppccap.c
+++ b/crypto/ppccap.c
@@ -7,120 +7,123 @@
#include <crypto.h>
#include <openssl/bn.h>
-#define PPC_FPU64 (1<<0)
-#define PPC_ALTIVEC (1<<1)
+#define PPC_FPU64 (1<<0)
+#define PPC_ALTIVEC (1<<1)
static int OPENSSL_ppccap_P = 0;
static sigset_t all_masked;
#ifdef OPENSSL_BN_ASM_MONT
-int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num)
- {
- int bn_mul_mont_fpu64(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num);
- int bn_mul_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num);
-
- if (sizeof(size_t)==4)
- {
-#if (defined(__APPLE__) && defined(__MACH__))
- 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
- Linux 2.6.22, might have to be adjusted on AIX... */
- if (num>=32 && (num&3)==0 && (OPENSSL_ppccap_P&PPC_FPU64))
- {
- sigset_t oset;
- int ret;
-
- sigprocmask(SIG_SETMASK,&all_masked,&oset);
- ret=bn_mul_mont_fpu64(rp,ap,bp,np,n0,num);
- sigprocmask(SIG_SETMASK,&oset,NULL);
-
- return ret;
- }
-#endif
- }
- else if ((OPENSSL_ppccap_P&PPC_FPU64))
- /* 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);
-
- return bn_mul_mont_int(rp,ap,bp,np,n0,num);
- }
+int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
+ const BN_ULONG *np, const BN_ULONG *n0, int num)
+{
+ int bn_mul_mont_fpu64(BN_ULONG *rp, const BN_ULONG *ap,
+ const BN_ULONG *bp, const BN_ULONG *np,
+ const BN_ULONG *n0, int num);
+ int bn_mul_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
+ const BN_ULONG *np, const BN_ULONG *n0, int num);
+
+ if (sizeof(size_t) == 4) {
+# if (defined(__APPLE__) && defined(__MACH__))
+ 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 Linux 2.6.22,
+ * might have to be adjusted on AIX...
+ */
+ if (num >= 32 && (num & 3) == 0 && (OPENSSL_ppccap_P & PPC_FPU64)) {
+ sigset_t oset;
+ int ret;
+
+ sigprocmask(SIG_SETMASK, &all_masked, &oset);
+ ret = bn_mul_mont_fpu64(rp, ap, bp, np, n0, num);
+ sigprocmask(SIG_SETMASK, &oset, NULL);
+
+ return ret;
+ }
+# endif
+ } else if ((OPENSSL_ppccap_P & PPC_FPU64))
+ /*
+ * 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);
+
+ return bn_mul_mont_int(rp, ap, bp, np, n0, num);
+}
#endif
static sigjmp_buf ill_jmp;
-static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); }
+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);
+{
+ 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);
+ sigdelset(&all_masked, SIGEMT);
#endif
- sigdelset(&all_masked,SIGFPE);
- sigdelset(&all_masked,SIGBUS);
- sigdelset(&all_masked,SIGSEGV);
+ 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;
- }
+ if ((e = getenv("OPENSSL_ppccap"))) {
+ OPENSSL_ppccap_P = strtoul(e, NULL, 0);
+ return;
+ }
- OPENSSL_ppccap_P = 0;
+ OPENSSL_ppccap_P = 0;
#if defined(_AIX)
- if (sizeof(size_t)==4
+ if (sizeof(size_t) == 4
# if defined(_SC_AIX_KERNEL_BITMODE)
- && sysconf(_SC_AIX_KERNEL_BITMODE)!=64
+ && sysconf(_SC_AIX_KERNEL_BITMODE) != 64
# endif
- )
- return;
+ )
+ 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)
- {
- 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;
- }
-
- sigaction (SIGILL,&ill_oact,NULL);
- sigprocmask(SIG_SETMASK,&oset,NULL);
- }
+ 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) {
+ OPENSSL_altivec_probe();
+ OPENSSL_ppccap_P |= PPC_ALTIVEC;
+ }
+
+ sigaction(SIGILL, &ill_oact, NULL);
+ sigprocmask(SIG_SETMASK, &oset, NULL);
+}