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#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
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