1 files changed, 154 insertions, 0 deletions

diff --git a/src/lib/libcrypto/sparcv9cap.c b/src/lib/libcrypto/sparcv9cap.c
new file mode 100644
index 0000000000..5f31d20bd0
--- /dev/null
+++ b/src/lib/libcrypto/sparcv9cap.c
@@ -0,0 +1,154 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/time.h>
+#include <openssl/bn.h>
+
+#define SPARCV9_TICK_PRIVILEGED (1<<0)
+#define SPARCV9_PREFER_FPU      (1<<1)
+#define SPARCV9_VIS1            (1<<2)
+#define SPARCV9_VIS2            (1<<3)  /* reserved */
+#define SPARCV9_FMADD           (1<<4)  /* reserved for SPARC64 V */
+static int OPENSSL_sparcv9cap_P=SPARCV9_TICK_PRIVILEGED;
+
+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_fpu(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 ((OPENSSL_sparcv9cap_P&(SPARCV9_PREFER_FPU|SPARCV9_VIS1)) ==
+                (SPARCV9_PREFER_FPU|SPARCV9_VIS1))
+                return bn_mul_mont_fpu(rp,ap,bp,np,n0,num);
+        else
+                return bn_mul_mont_int(rp,ap,bp,np,n0,num);
+        }
+
+unsigned long OPENSSL_rdtsc(void)
+        {
+        unsigned long _sparcv9_rdtick(void);
+
+        if (OPENSSL_sparcv9cap_P&SPARCV9_TICK_PRIVILEGED)
+#if defined(__sun) && defined(__SVR4)
+                return gethrtime();
+#else
+                return 0;
+#endif
+        else
+                return _sparcv9_rdtick();
+        }
+
+#if defined(__sun) && defined(__SVR4)
+
+#include <dlfcn.h>
+#include <libdevinfo.h>
+#include <sys/systeminfo.h>
+
+typedef di_node_t (*di_init_t)(const char *,uint_t);
+typedef void      (*di_fini_t)(di_node_t);
+typedef char *    (*di_node_name_t)(di_node_t);
+typedef int       (*di_walk_node_t)(di_node_t,uint_t,di_node_name_t,int (*)(di_node_t,di_node_name_t));
+
+#define DLLINK(h,name) (name=(name##_t)dlsym((h),#name))
+
+static int walk_nodename(di_node_t node, di_node_name_t di_node_name)
+        {
+        char *name = (*di_node_name)(node);
+
+        /* This is expected to catch all UltraSPARC flavors prior T1 */
+        if (!strcmp (name,"SUNW,UltraSPARC") ||
+            !strncmp(name,"SUNW,UltraSPARC-I",17))  /* covers II,III,IV */
+                {
+                OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU|SPARCV9_VIS1;
+
+                /* %tick is privileged only on UltraSPARC-I/II, but not IIe */
+                if (name[14]!='\0' && name[17]!='\0' && name[18]!='\0')
+                        OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED;
+
+                return DI_WALK_TERMINATE;
+                }
+        /* This is expected to catch remaining UltraSPARCs, such as T1 */
+        else if (!strncmp(name,"SUNW,UltraSPARC",15))
+                {
+                OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED;
+
+                return DI_WALK_TERMINATE;
+                }
+
+        return DI_WALK_CONTINUE;
+        }
+
+void OPENSSL_cpuid_setup(void)
+        {
+        void *h;
+        char *e,si[256];
+        static int trigger=0;
+
+        if (trigger) return;
+        trigger=1;
+
+        if ((e=getenv("OPENSSL_sparcv9cap")))
+                {
+                OPENSSL_sparcv9cap_P=strtoul(e,NULL,0);
+                return;
+                }
+
+        if (sysinfo(SI_MACHINE,si,sizeof(si))>0)
+                {
+                if (strcmp(si,"sun4v"))
+                        /* FPU is preferred for all CPUs, but US-T1/2 */
+                        OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU;
+                }
+
+        if (sysinfo(SI_ISALIST,si,sizeof(si))>0)
+                {
+                if (strstr(si,"+vis"))
+                        OPENSSL_sparcv9cap_P |= SPARCV9_VIS1;
+                if (strstr(si,"+vis2"))
+                        {
+                        OPENSSL_sparcv9cap_P |= SPARCV9_VIS2;
+                        OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED;
+                        return;
+                        }
+                }
+
+        if ((h = dlopen("libdevinfo.so.1",RTLD_LAZY))) do
+                {
+                di_init_t       di_init;
+                di_fini_t       di_fini;
+                di_walk_node_t  di_walk_node;
+                di_node_name_t  di_node_name;
+                di_node_t       root_node;
+
+                if (!DLLINK(h,di_init))         break;
+                if (!DLLINK(h,di_fini))         break;
+                if (!DLLINK(h,di_walk_node))    break;
+                if (!DLLINK(h,di_node_name))    break;
+
+                if ((root_node = (*di_init)("/",DINFOSUBTREE))!=DI_NODE_NIL)
+                        {
+                        (*di_walk_node)(root_node,DI_WALK_SIBFIRST,
+                                        di_node_name,walk_nodename);
+                        (*di_fini)(root_node);
+                        }
+                } while(0);
+
+        if (h) dlclose(h);
+        }
+
+#else
+
+void OPENSSL_cpuid_setup(void)
+        {
+        char *e;
+ 
+        if ((e=getenv("OPENSSL_sparcv9cap")))
+                {
+                OPENSSL_sparcv9cap_P=strtoul(e,NULL,0);
+                return;
+                }
+
+        /* For now we assume that the rest supports UltraSPARC-I* only */
+        OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU|SPARCV9_VIS1;
+        }
+
+#endif