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| 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_U
LONG *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 ((OPENSSL_sparcv9cap_P&(SPARCV9_PREFER_FPU|SPARCV9_VIS1)) == |
| 23 (SPARCV9_PREFER_FPU|SPARCV9_VIS1)) |
| 24 return bn_mul_mont_fpu(rp,ap,bp,np,n0,num); |
| 25 else |
| 26 return bn_mul_mont_int(rp,ap,bp,np,n0,num); |
| 27 } |
| 28 |
| 29 unsigned long _sparcv9_rdtick(void); |
| 30 void _sparcv9_vis1_probe(void); |
| 31 unsigned long _sparcv9_vis1_instrument(void); |
| 32 void _sparcv9_vis2_probe(void); |
| 33 void _sparcv9_fmadd_probe(void); |
| 34 |
| 35 unsigned long OPENSSL_rdtsc(void) |
| 36 { |
| 37 if (OPENSSL_sparcv9cap_P&SPARCV9_TICK_PRIVILEGED) |
| 38 #if defined(__sun) && defined(__SVR4) |
| 39 return gethrtime(); |
| 40 #else |
| 41 return 0; |
| 42 #endif |
| 43 else |
| 44 return _sparcv9_rdtick(); |
| 45 } |
| 46 |
| 47 #if 0 && defined(__sun) && defined(__SVR4) |
| 48 /* This code path is disabled, because of incompatibility of |
| 49 * libdevinfo.so.1 and libmalloc.so.1 (see below for details) |
| 50 */ |
| 51 #include <malloc.h> |
| 52 #include <dlfcn.h> |
| 53 #include <libdevinfo.h> |
| 54 #include <sys/systeminfo.h> |
| 55 |
| 56 typedef di_node_t (*di_init_t)(const char *,uint_t); |
| 57 typedef void (*di_fini_t)(di_node_t); |
| 58 typedef char * (*di_node_name_t)(di_node_t); |
| 59 typedef int (*di_walk_node_t)(di_node_t,uint_t,di_node_name_t,int (*)(di_n
ode_t,di_node_name_t)); |
| 60 |
| 61 #define DLLINK(h,name) (name=(name##_t)dlsym((h),#name)) |
| 62 |
| 63 static int walk_nodename(di_node_t node, di_node_name_t di_node_name) |
| 64 { |
| 65 char *name = (*di_node_name)(node); |
| 66 |
| 67 /* This is expected to catch all UltraSPARC flavors prior T1 */ |
| 68 if (!strcmp (name,"SUNW,UltraSPARC") || |
| 69 !strncmp(name,"SUNW,UltraSPARC-I",17)) /* covers II,III,IV */ |
| 70 { |
| 71 OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU|SPARCV9_VIS1; |
| 72 |
| 73 /* %tick is privileged only on UltraSPARC-I/II, but not IIe */ |
| 74 if (name[14]!='\0' && name[17]!='\0' && name[18]!='\0') |
| 75 OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; |
| 76 |
| 77 return DI_WALK_TERMINATE; |
| 78 } |
| 79 /* This is expected to catch remaining UltraSPARCs, such as T1 */ |
| 80 else if (!strncmp(name,"SUNW,UltraSPARC",15)) |
| 81 { |
| 82 OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; |
| 83 |
| 84 return DI_WALK_TERMINATE; |
| 85 } |
| 86 |
| 87 return DI_WALK_CONTINUE; |
| 88 } |
| 89 |
| 90 void OPENSSL_cpuid_setup(void) |
| 91 { |
| 92 void *h; |
| 93 char *e,si[256]; |
| 94 static int trigger=0; |
| 95 |
| 96 if (trigger) return; |
| 97 trigger=1; |
| 98 |
| 99 if ((e=getenv("OPENSSL_sparcv9cap"))) |
| 100 { |
| 101 OPENSSL_sparcv9cap_P=strtoul(e,NULL,0); |
| 102 return; |
| 103 } |
| 104 |
| 105 if (sysinfo(SI_MACHINE,si,sizeof(si))>0) |
| 106 { |
| 107 if (strcmp(si,"sun4v")) |
| 108 /* FPU is preferred for all CPUs, but US-T1/2 */ |
| 109 OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU; |
| 110 } |
| 111 |
| 112 if (sysinfo(SI_ISALIST,si,sizeof(si))>0) |
| 113 { |
| 114 if (strstr(si,"+vis")) |
| 115 OPENSSL_sparcv9cap_P |= SPARCV9_VIS1; |
| 116 if (strstr(si,"+vis2")) |
| 117 { |
| 118 OPENSSL_sparcv9cap_P |= SPARCV9_VIS2; |
| 119 OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; |
| 120 return; |
| 121 } |
| 122 } |
| 123 #ifdef M_KEEP |
| 124 /* |
| 125 * Solaris libdevinfo.so.1 is effectively incomatible with |
| 126 * libmalloc.so.1. Specifically, if application is linked with |
| 127 * -lmalloc, it crashes upon startup with SIGSEGV in |
| 128 * free(3LIBMALLOC) called by di_fini. Prior call to |
| 129 * mallopt(M_KEEP,0) somehow helps... But not always... |
| 130 */ |
| 131 if ((h = dlopen(NULL,RTLD_LAZY))) |
| 132 { |
| 133 union { void *p; int (*f)(int,int); } sym; |
| 134 if ((sym.p = dlsym(h,"mallopt"))) (*sym.f)(M_KEEP,0); |
| 135 dlclose(h); |
| 136 } |
| 137 #endif |
| 138 if ((h = dlopen("libdevinfo.so.1",RTLD_LAZY))) do |
| 139 { |
| 140 di_init_t di_init; |
| 141 di_fini_t di_fini; |
| 142 di_walk_node_t di_walk_node; |
| 143 di_node_name_t di_node_name; |
| 144 di_node_t root_node; |
| 145 |
| 146 if (!DLLINK(h,di_init)) break; |
| 147 if (!DLLINK(h,di_fini)) break; |
| 148 if (!DLLINK(h,di_walk_node)) break; |
| 149 if (!DLLINK(h,di_node_name)) break; |
| 150 |
| 151 if ((root_node = (*di_init)("/",DINFOSUBTREE))!=DI_NODE_NIL) |
| 152 { |
| 153 (*di_walk_node)(root_node,DI_WALK_SIBFIRST, |
| 154 di_node_name,walk_nodename); |
| 155 (*di_fini)(root_node); |
| 156 } |
| 157 } while(0); |
| 158 |
| 159 if (h) dlclose(h); |
| 160 } |
| 161 |
| 162 #else |
| 163 |
| 164 static sigjmp_buf common_jmp; |
| 165 static void common_handler(int sig) { siglongjmp(common_jmp,sig); } |
| 166 |
| 167 void OPENSSL_cpuid_setup(void) |
| 168 { |
| 169 char *e; |
| 170 struct sigaction common_act,ill_oact,bus_oact; |
| 171 sigset_t all_masked,oset; |
| 172 int sig; |
| 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 Linu
x] */ |
| 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_FP
U); |
| 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 |
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