329 lines
9.1 KiB
C
329 lines
9.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <setjmp.h>
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#include <signal.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <openssl/bn.h>
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#include "sparc_arch.h"
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#if defined(__GNUC__) && defined(__linux)
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__attribute__((visibility("hidden")))
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#endif
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unsigned int OPENSSL_sparcv9cap_P[2]={SPARCV9_TICK_PRIVILEGED,0};
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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)
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{
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int bn_mul_mont_vis3(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0, int num);
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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);
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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);
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if (!(num&1) && num>=6)
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{
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if ((num&15)==0 && num<=64 &&
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(OPENSSL_sparcv9cap_P[1]&(CFR_MONTMUL|CFR_MONTSQR))==
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(CFR_MONTMUL|CFR_MONTSQR))
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{
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typedef int (*bn_mul_mont_f)(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0);
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int bn_mul_mont_t4_8(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0);
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int bn_mul_mont_t4_16(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0);
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int bn_mul_mont_t4_24(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0);
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int bn_mul_mont_t4_32(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0);
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static const bn_mul_mont_f funcs[4] = {
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bn_mul_mont_t4_8, bn_mul_mont_t4_16,
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bn_mul_mont_t4_24, bn_mul_mont_t4_32 };
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bn_mul_mont_f worker = funcs[num/16-1];
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if ((*worker)(rp,ap,bp,np,n0)) return 1;
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/* retry once and fall back */
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if ((*worker)(rp,ap,bp,np,n0)) return 1;
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return bn_mul_mont_vis3(rp,ap,bp,np,n0,num);
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}
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if ((OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS3))
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return bn_mul_mont_vis3(rp,ap,bp,np,n0,num);
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else if (num>=8 &&
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(OPENSSL_sparcv9cap_P[0]&(SPARCV9_PREFER_FPU|SPARCV9_VIS1)) ==
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(SPARCV9_PREFER_FPU|SPARCV9_VIS1))
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return bn_mul_mont_fpu(rp,ap,bp,np,n0,num);
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}
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return bn_mul_mont_int(rp,ap,bp,np,n0,num);
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}
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unsigned long _sparcv9_rdtick(void);
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void _sparcv9_vis1_probe(void);
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unsigned long _sparcv9_vis1_instrument(void);
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void _sparcv9_vis2_probe(void);
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void _sparcv9_fmadd_probe(void);
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unsigned long _sparcv9_rdcfr(void);
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void _sparcv9_vis3_probe(void);
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unsigned long _sparcv9_random(void);
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size_t _sparcv9_vis1_instrument_bus(unsigned int *,size_t);
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size_t _sparcv9_vis1_instrument_bus2(unsigned int *,size_t,size_t);
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unsigned long OPENSSL_rdtsc(void)
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{
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if (OPENSSL_sparcv9cap_P[0]&SPARCV9_TICK_PRIVILEGED)
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#if defined(__sun) && defined(__SVR4)
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return gethrtime();
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#else
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return 0;
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#endif
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else
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return _sparcv9_rdtick();
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}
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size_t OPENSSL_instrument_bus(unsigned int *out,size_t cnt)
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{
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if ((OPENSSL_sparcv9cap_P[0]&(SPARCV9_TICK_PRIVILEGED|SPARCV9_BLK)) ==
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SPARCV9_BLK)
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return _sparcv9_vis1_instrument_bus(out,cnt);
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else
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return 0;
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}
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size_t OPENSSL_instrument_bus2(unsigned int *out,size_t cnt,size_t max)
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{
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if ((OPENSSL_sparcv9cap_P[0]&(SPARCV9_TICK_PRIVILEGED|SPARCV9_BLK)) ==
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SPARCV9_BLK)
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return _sparcv9_vis1_instrument_bus2(out,cnt,max);
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else
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return 0;
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}
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#if 0 && defined(__sun) && defined(__SVR4)
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/* This code path is disabled, because of incompatibility of
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* libdevinfo.so.1 and libmalloc.so.1 (see below for details)
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*/
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#include <malloc.h>
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#include <dlfcn.h>
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#include <libdevinfo.h>
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#include <sys/systeminfo.h>
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typedef di_node_t (*di_init_t)(const char *,uint_t);
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typedef void (*di_fini_t)(di_node_t);
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typedef char * (*di_node_name_t)(di_node_t);
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typedef int (*di_walk_node_t)(di_node_t,uint_t,di_node_name_t,int (*)(di_node_t,di_node_name_t));
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#define DLLINK(h,name) (name=(name##_t)dlsym((h),#name))
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static int walk_nodename(di_node_t node, di_node_name_t di_node_name)
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{
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char *name = (*di_node_name)(node);
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/* This is expected to catch all UltraSPARC flavors prior T1 */
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if (!strcmp (name,"SUNW,UltraSPARC") ||
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!strncmp(name,"SUNW,UltraSPARC-I",17)) /* covers II,III,IV */
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{
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OPENSSL_sparcv9cap_P[0] |= SPARCV9_PREFER_FPU|SPARCV9_VIS1;
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/* %tick is privileged only on UltraSPARC-I/II, but not IIe */
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if (name[14]!='\0' && name[17]!='\0' && name[18]!='\0')
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OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
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return DI_WALK_TERMINATE;
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}
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/* This is expected to catch remaining UltraSPARCs, such as T1 */
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else if (!strncmp(name,"SUNW,UltraSPARC",15))
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{
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OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
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return DI_WALK_TERMINATE;
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}
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return DI_WALK_CONTINUE;
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}
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void OPENSSL_cpuid_setup(void)
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{
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void *h;
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char *e,si[256];
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static int trigger=0;
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if (trigger) return;
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trigger=1;
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if ((e=getenv("OPENSSL_sparcv9cap")))
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{
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OPENSSL_sparcv9cap_P[0]=strtoul(e,NULL,0);
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return;
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}
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if (sysinfo(SI_MACHINE,si,sizeof(si))>0)
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{
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if (strcmp(si,"sun4v"))
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/* FPU is preferred for all CPUs, but US-T1/2 */
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OPENSSL_sparcv9cap_P[0] |= SPARCV9_PREFER_FPU;
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}
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if (sysinfo(SI_ISALIST,si,sizeof(si))>0)
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{
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if (strstr(si,"+vis"))
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OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1|SPARCV9_BLK;
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if (strstr(si,"+vis2"))
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{
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OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2;
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OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
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return;
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}
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}
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#ifdef M_KEEP
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/*
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* Solaris libdevinfo.so.1 is effectively incomatible with
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* libmalloc.so.1. Specifically, if application is linked with
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* -lmalloc, it crashes upon startup with SIGSEGV in
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* free(3LIBMALLOC) called by di_fini. Prior call to
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* mallopt(M_KEEP,0) somehow helps... But not always...
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*/
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if ((h = dlopen(NULL,RTLD_LAZY)))
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{
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union { void *p; int (*f)(int,int); } sym;
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if ((sym.p = dlsym(h,"mallopt"))) (*sym.f)(M_KEEP,0);
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dlclose(h);
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}
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#endif
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if ((h = dlopen("libdevinfo.so.1",RTLD_LAZY))) do
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{
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di_init_t di_init;
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di_fini_t di_fini;
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di_walk_node_t di_walk_node;
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di_node_name_t di_node_name;
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di_node_t root_node;
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if (!DLLINK(h,di_init)) break;
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if (!DLLINK(h,di_fini)) break;
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if (!DLLINK(h,di_walk_node)) break;
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if (!DLLINK(h,di_node_name)) break;
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if ((root_node = (*di_init)("/",DINFOSUBTREE))!=DI_NODE_NIL)
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{
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(*di_walk_node)(root_node,DI_WALK_SIBFIRST,
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di_node_name,walk_nodename);
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(*di_fini)(root_node);
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}
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} while(0);
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if (h) dlclose(h);
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}
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#else
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static sigjmp_buf common_jmp;
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static void common_handler(int sig) { siglongjmp(common_jmp,sig); }
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void OPENSSL_cpuid_setup(void)
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{
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char *e;
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struct sigaction common_act,ill_oact,bus_oact;
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sigset_t all_masked,oset;
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static int trigger=0;
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if (trigger) return;
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trigger=1;
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if ((e=getenv("OPENSSL_sparcv9cap")))
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{
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OPENSSL_sparcv9cap_P[0]=strtoul(e,NULL,0);
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if ((e=strchr(e,':')))
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OPENSSL_sparcv9cap_P[1]=strtoul(e+1,NULL,0);
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return;
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}
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/* Initial value, fits UltraSPARC-I&II... */
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OPENSSL_sparcv9cap_P[0] = SPARCV9_PREFER_FPU|SPARCV9_TICK_PRIVILEGED;
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sigfillset(&all_masked);
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sigdelset(&all_masked,SIGILL);
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sigdelset(&all_masked,SIGTRAP);
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#ifdef SIGEMT
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sigdelset(&all_masked,SIGEMT);
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#endif
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sigdelset(&all_masked,SIGFPE);
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sigdelset(&all_masked,SIGBUS);
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sigdelset(&all_masked,SIGSEGV);
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sigprocmask(SIG_SETMASK,&all_masked,&oset);
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memset(&common_act,0,sizeof(common_act));
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common_act.sa_handler = common_handler;
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common_act.sa_mask = all_masked;
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sigaction(SIGILL,&common_act,&ill_oact);
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sigaction(SIGBUS,&common_act,&bus_oact);/* T1 fails 16-bit ldda [on Linux] */
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if (sigsetjmp(common_jmp,1) == 0)
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{
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_sparcv9_rdtick();
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OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
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}
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if (sigsetjmp(common_jmp,1) == 0)
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{
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_sparcv9_vis1_probe();
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OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1|SPARCV9_BLK;
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/* detect UltraSPARC-Tx, see sparccpud.S for details... */
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if (_sparcv9_vis1_instrument() >= 12)
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OPENSSL_sparcv9cap_P[0] &= ~(SPARCV9_VIS1|SPARCV9_PREFER_FPU);
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else
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{
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_sparcv9_vis2_probe();
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OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2;
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}
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}
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if (sigsetjmp(common_jmp,1) == 0)
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{
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_sparcv9_fmadd_probe();
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OPENSSL_sparcv9cap_P[0] |= SPARCV9_FMADD;
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}
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/*
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* VIS3 flag is tested independently from VIS1, unlike VIS2 that is,
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* because VIS3 defines even integer instructions.
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*/
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if (sigsetjmp(common_jmp,1) == 0)
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{
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_sparcv9_vis3_probe();
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OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS3;
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}
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#if 0 /* was planned at some point but never implemented in hardware */
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if (sigsetjmp(common_jmp,1) == 0)
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{
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(void)_sparcv9_random();
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OPENSSL_sparcv9cap_P[0] |= SPARCV9_RANDOM;
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}
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#endif
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/*
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* In wait for better solution _sparcv9_rdcfr is masked by
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* VIS3 flag, because it goes to uninterruptable endless
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* loop on UltraSPARC II running Solaris. Things might be
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* different on Linux...
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*/
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if ((OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS3) &&
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sigsetjmp(common_jmp,1) == 0)
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{
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OPENSSL_sparcv9cap_P[1] = (unsigned int)_sparcv9_rdcfr();
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}
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sigaction(SIGBUS,&bus_oact,NULL);
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sigaction(SIGILL,&ill_oact,NULL);
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sigprocmask(SIG_SETMASK,&oset,NULL);
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if (sizeof(size_t)==8)
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OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK;
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#ifdef __linux
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else
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{
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int ret = syscall(340);
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if (ret>=0 && ret&1)
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OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK;
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}
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#endif
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}
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#endif
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