1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <string.h> 4 #include <setjmp.h> 5 #include <signal.h> 6 #include <sys/time.h> 7 #include <openssl/bn.h> 8 9 #define SPARCV9_TICK_PRIVILEGED (1<<0) 10 #define SPARCV9_PREFER_FPU (1<<1) 11 #define SPARCV9_VIS1 (1<<2) 12 #define SPARCV9_VIS2 (1<<3) /* reserved */ 13 #define SPARCV9_FMADD (1<<4) /* reserved for SPARC64 V */ 14 15 static int OPENSSL_sparcv9cap_P=SPARCV9_TICK_PRIVILEGED; 16 17 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) 18 { 19 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); 20 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); 21 22 if (num>=8 && !(num&1) && 23 (OPENSSL_sparcv9cap_P&(SPARCV9_PREFER_FPU|SPARCV9_VIS1)) == 24 (SPARCV9_PREFER_FPU|SPARCV9_VIS1)) 25 return bn_mul_mont_fpu(rp,ap,bp,np,n0,num); 26 else 27 return bn_mul_mont_int(rp,ap,bp,np,n0,num); 28 } 29 30 unsigned long _sparcv9_rdtick(void); 31 void _sparcv9_vis1_probe(void); 32 unsigned long _sparcv9_vis1_instrument(void); 33 void _sparcv9_vis2_probe(void); 34 void _sparcv9_fmadd_probe(void); 35 36 unsigned long OPENSSL_rdtsc(void) 37 { 38 if (OPENSSL_sparcv9cap_P&SPARCV9_TICK_PRIVILEGED) 39 #if defined(__sun) && defined(__SVR4) 40 return gethrtime(); 41 #else 42 return 0; 43 #endif 44 else 45 return _sparcv9_rdtick(); 46 } 47 48 #if 0 && defined(__sun) && defined(__SVR4) 49 /* This code path is disabled, because of incompatibility of 50 * libdevinfo.so.1 and libmalloc.so.1 (see below for details) 51 */ 52 #include <malloc.h> 53 #include <dlfcn.h> 54 #include <libdevinfo.h> 55 #include <sys/systeminfo.h> 56 57 typedef di_node_t (*di_init_t)(const char *,uint_t); 58 typedef void (*di_fini_t)(di_node_t); 59 typedef char * (*di_node_name_t)(di_node_t); 60 typedef int (*di_walk_node_t)(di_node_t,uint_t,di_node_name_t,int (*)(di_node_t,di_node_name_t)); 61 62 #define DLLINK(h,name) (name=(name##_t)dlsym((h),#name)) 63 64 static int walk_nodename(di_node_t node, di_node_name_t di_node_name) 65 { 66 char *name = (*di_node_name)(node); 67 68 /* This is expected to catch all UltraSPARC flavors prior T1 */ 69 if (!strcmp (name,"SUNW,UltraSPARC") || 70 !strncmp(name,"SUNW,UltraSPARC-I",17)) /* covers II,III,IV */ 71 { 72 OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU|SPARCV9_VIS1; 73 74 /* %tick is privileged only on UltraSPARC-I/II, but not IIe */ 75 if (name[14]!='\0' && name[17]!='\0' && name[18]!='\0') 76 OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; 77 78 return DI_WALK_TERMINATE; 79 } 80 /* This is expected to catch remaining UltraSPARCs, such as T1 */ 81 else if (!strncmp(name,"SUNW,UltraSPARC",15)) 82 { 83 OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; 84 85 return DI_WALK_TERMINATE; 86 } 87 88 return DI_WALK_CONTINUE; 89 } 90 91 void OPENSSL_cpuid_setup(void) 92 { 93 void *h; 94 char *e,si[256]; 95 static int trigger=0; 96 97 if (trigger) return; 98 trigger=1; 99 100 if ((e=getenv("OPENSSL_sparcv9cap"))) 101 { 102 OPENSSL_sparcv9cap_P=strtoul(e,NULL,0); 103 return; 104 } 105 106 if (sysinfo(SI_MACHINE,si,sizeof(si))>0) 107 { 108 if (strcmp(si,"sun4v")) 109 /* FPU is preferred for all CPUs, but US-T1/2 */ 110 OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU; 111 } 112 113 if (sysinfo(SI_ISALIST,si,sizeof(si))>0) 114 { 115 if (strstr(si,"+vis")) 116 OPENSSL_sparcv9cap_P |= SPARCV9_VIS1; 117 if (strstr(si,"+vis2")) 118 { 119 OPENSSL_sparcv9cap_P |= SPARCV9_VIS2; 120 OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; 121 return; 122 } 123 } 124 #ifdef M_KEEP 125 /* 126 * Solaris libdevinfo.so.1 is effectively incomatible with 127 * libmalloc.so.1. Specifically, if application is linked with 128 * -lmalloc, it crashes upon startup with SIGSEGV in 129 * free(3LIBMALLOC) called by di_fini. Prior call to 130 * mallopt(M_KEEP,0) somehow helps... But not always... 131 */ 132 if ((h = dlopen(NULL,RTLD_LAZY))) 133 { 134 union { void *p; int (*f)(int,int); } sym; 135 if ((sym.p = dlsym(h,"mallopt"))) (*sym.f)(M_KEEP,0); 136 dlclose(h); 137 } 138 #endif 139 if ((h = dlopen("libdevinfo.so.1",RTLD_LAZY))) do 140 { 141 di_init_t di_init; 142 di_fini_t di_fini; 143 di_walk_node_t di_walk_node; 144 di_node_name_t di_node_name; 145 di_node_t root_node; 146 147 if (!DLLINK(h,di_init)) break; 148 if (!DLLINK(h,di_fini)) break; 149 if (!DLLINK(h,di_walk_node)) break; 150 if (!DLLINK(h,di_node_name)) break; 151 152 if ((root_node = (*di_init)("/",DINFOSUBTREE))!=DI_NODE_NIL) 153 { 154 (*di_walk_node)(root_node,DI_WALK_SIBFIRST, 155 di_node_name,walk_nodename); 156 (*di_fini)(root_node); 157 } 158 } while(0); 159 160 if (h) dlclose(h); 161 } 162 163 #else 164 165 static sigjmp_buf common_jmp; 166 static void common_handler(int sig) { siglongjmp(common_jmp,sig); } 167 168 void OPENSSL_cpuid_setup(void) 169 { 170 char *e; 171 struct sigaction common_act,ill_oact,bus_oact; 172 sigset_t all_masked,oset; 173 static int trigger=0; 174 175 if (trigger) return; 176 trigger=1; 177 178 if ((e=getenv("OPENSSL_sparcv9cap"))) 179 { 180 OPENSSL_sparcv9cap_P=strtoul(e,NULL,0); 181 return; 182 } 183 184 /* Initial value, fits UltraSPARC-I&II... */ 185 OPENSSL_sparcv9cap_P = SPARCV9_PREFER_FPU|SPARCV9_TICK_PRIVILEGED; 186 187 sigfillset(&all_masked); 188 sigdelset(&all_masked,SIGILL); 189 sigdelset(&all_masked,SIGTRAP); 190 #ifdef SIGEMT 191 sigdelset(&all_masked,SIGEMT); 192 #endif 193 sigdelset(&all_masked,SIGFPE); 194 sigdelset(&all_masked,SIGBUS); 195 sigdelset(&all_masked,SIGSEGV); 196 sigprocmask(SIG_SETMASK,&all_masked,&oset); 197 198 memset(&common_act,0,sizeof(common_act)); 199 common_act.sa_handler = common_handler; 200 common_act.sa_mask = all_masked; 201 202 sigaction(SIGILL,&common_act,&ill_oact); 203 sigaction(SIGBUS,&common_act,&bus_oact);/* T1 fails 16-bit ldda [on Linux] */ 204 205 if (sigsetjmp(common_jmp,1) == 0) 206 { 207 _sparcv9_rdtick(); 208 OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; 209 } 210 211 if (sigsetjmp(common_jmp,1) == 0) 212 { 213 _sparcv9_vis1_probe(); 214 OPENSSL_sparcv9cap_P |= SPARCV9_VIS1; 215 /* detect UltraSPARC-Tx, see sparccpud.S for details... */ 216 if (_sparcv9_vis1_instrument() >= 12) 217 OPENSSL_sparcv9cap_P &= ~(SPARCV9_VIS1|SPARCV9_PREFER_FPU); 218 else 219 { 220 _sparcv9_vis2_probe(); 221 OPENSSL_sparcv9cap_P |= SPARCV9_VIS2; 222 } 223 } 224 225 if (sigsetjmp(common_jmp,1) == 0) 226 { 227 _sparcv9_fmadd_probe(); 228 OPENSSL_sparcv9cap_P |= SPARCV9_FMADD; 229 } 230 231 sigaction(SIGBUS,&bus_oact,NULL); 232 sigaction(SIGILL,&ill_oact,NULL); 233 234 sigprocmask(SIG_SETMASK,&oset,NULL); 235 } 236 237 #endif 238
