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-rw-r--r--crypto/sparcv9cap.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/crypto/sparcv9cap.c b/crypto/sparcv9cap.c
index 8bf2846929b1..a36e46179294 100644
--- a/crypto/sparcv9cap.c
+++ b/crypto/sparcv9cap.c
@@ -237,6 +237,17 @@ static void common_handler(int sig)
siglongjmp(common_jmp, sig);
}
+#if defined(__sun) && defined(__SVR4)
+# if defined(__GNUC__) && __GNUC__>=2
+extern unsigned int getisax(unsigned int vec[], unsigned int sz) __attribute__ ((weak));
+# elif defined(__SUNPRO_C)
+#pragma weak getisax
+extern unsigned int getisax(unsigned int vec[], unsigned int sz);
+# else
+static unsigned int (*getisax) (unsigned int vec[], unsigned int sz) = NULL;
+# endif
+#endif
+
void OPENSSL_cpuid_setup(void)
{
char *e;
@@ -255,6 +266,42 @@ void OPENSSL_cpuid_setup(void)
return;
}
+#if defined(__sun) && defined(__SVR4)
+ if (getisax != NULL) {
+ unsigned int vec[1];
+
+ if (getisax (vec,1)) {
+ if (vec[0]&0x0020) OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1;
+ if (vec[0]&0x0040) OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2;
+ if (vec[0]&0x0080) OPENSSL_sparcv9cap_P[0] |= SPARCV9_BLK;
+ if (vec[0]&0x0100) OPENSSL_sparcv9cap_P[0] |= SPARCV9_FMADD;
+ if (vec[0]&0x0400) OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS3;
+
+ /* reconstruct %cfr copy */
+ OPENSSL_sparcv9cap_P[1] = (vec[0]>>17)&0x3ff;
+ OPENSSL_sparcv9cap_P[1] |= (OPENSSL_sparcv9cap_P[1]&CFR_MONTMUL)<<1;
+ if (vec[0]&0x20000000) OPENSSL_sparcv9cap_P[1] |= CFR_CRC32C;
+
+ /* Some heuristics */
+ /* all known VIS2-capable CPUs have unprivileged tick counter */
+ if (OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS2)
+ OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
+
+ OPENSSL_sparcv9cap_P[0] |= SPARCV9_PREFER_FPU;
+
+ /* detect UltraSPARC-Tx, see sparccpud.S for details... */
+ if ((OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS1) &&
+ _sparcv9_vis1_instrument() >= 12)
+ OPENSSL_sparcv9cap_P[0] &= ~(SPARCV9_VIS1 | SPARCV9_PREFER_FPU);
+ }
+
+ if (sizeof(size_t) == 8)
+ OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK;
+
+ return;
+ }
+#endif
+
/* Initial value, fits UltraSPARC-I&II... */
OPENSSL_sparcv9cap_P[0] = SPARCV9_PREFER_FPU | SPARCV9_TICK_PRIVILEGED;