X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fsparcv9cap.c;h=b961cbe3fa114af4050226236f3ec2e10378b930;hp=7012f78604b294fd8dcc202b86058d312282e5d8;hb=62f29eb1cf7957b4eb9ad60eccfe1e11bbac94ce;hpb=c06b0f3d5e20032e323903f754953fdfe246aa64 diff --git a/crypto/sparcv9cap.c b/crypto/sparcv9cap.c index 7012f78604..b961cbe3fa 100644 --- a/crypto/sparcv9cap.c +++ b/crypto/sparcv9cap.c @@ -1,6 +1,8 @@ #include #include #include +#include +#include #include #include @@ -9,6 +11,8 @@ #define SPARCV9_VIS1 (1<<2) #define SPARCV9_VIS2 (1<<3) /* reserved */ #define SPARCV9_FMADD (1<<4) /* reserved for SPARC64 V */ +#define SPARCV9_BLK (1<<5) /* VIS1 block copy */ + 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) @@ -16,17 +20,24 @@ int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_U 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) == + if (num>=8 && !(num&1) && + (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 _sparcv9_rdtick(void); +void _sparcv9_vis1_probe(void); +unsigned long _sparcv9_vis1_instrument(void); +void _sparcv9_vis2_probe(void); +void _sparcv9_fmadd_probe(void); +size_t _sparcv9_vis1_instrument_bus(unsigned int *,size_t); +size_t _sparcv8_vis1_instrument_bus2(unsigned int *,size_t,size_t); + unsigned long OPENSSL_rdtsc(void) { - unsigned long OPENSSL_rdtick(void); - if (OPENSSL_sparcv9cap_P&SPARCV9_TICK_PRIVILEGED) #if defined(__sun) && defined(__SVR4) return gethrtime(); @@ -34,13 +45,35 @@ unsigned long OPENSSL_rdtsc(void) return 0; #endif else - return OPENSSL_rdtick(); + return _sparcv9_rdtick(); } -#if defined(__sun) && defined(__SVR4) +size_t OPENSSL_instrument_bus(unsigned int *out,size_t cnt) + { + if (OPENSSL_sparcv9cap_P&(SPARCV9_TICK_PRIVILEGED|SPARCV9_BLK) == + SPARCV9_BLK) + return _sparcv9_vis1_instrument_bus(out,cnt); + else + return 0; + } + +size_t OPENSSL_instrument_bus2(unsigned int *out,size_t cnt,size_t max) + { + if (OPENSSL_sparcv9cap_P&(SPARCV9_TICK_PRIVILEGED|SPARCV9_BLK) == + SPARCV9_BLK) + return _sparcv9_vis1_instrument_bus2(out,cnt,max); + else + return 0; + } +#if 0 && defined(__sun) && defined(__SVR4) +/* This code path is disabled, because of incompatibility of + * libdevinfo.so.1 and libmalloc.so.1 (see below for details) + */ +#include #include #include +#include typedef di_node_t (*di_init_t)(const char *,uint_t); typedef void (*di_fini_t)(di_node_t); @@ -55,21 +88,22 @@ static int walk_nodename(di_node_t node, di_node_name_t di_node_name) /* This is expected to catch all UltraSPARC flavors prior T1 */ if (!strcmp (name,"SUNW,UltraSPARC") || - !strncmp(name,"SUNW,UltraSPARC-I",17)) + !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 */ + /* %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 UltraSPARC T1 */ + /* This is expected to catch remaining UltraSPARCs, such as T1 */ else if (!strncmp(name,"SUNW,UltraSPARC",15)) { - OPENSSL_sparcv9cap_P |= SPARCV9_VIS1; OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; + + return DI_WALK_TERMINATE; } return DI_WALK_CONTINUE; @@ -78,15 +112,52 @@ static int walk_nodename(di_node_t node, di_node_name_t di_node_name) void OPENSSL_cpuid_setup(void) { void *h; - char *e; + char *e,si[256]; + static int trigger=0; + + if (trigger) return; + trigger=1; - if (e=getenv("OPENSSL_sparcv9cap")) + if ((e=getenv("OPENSSL_sparcv9cap"))) { OPENSSL_sparcv9cap_P=strtoul(e,NULL,0); return; } - if (h = dlopen("libdevinfo.so.1",RTLD_LAZY)) do + 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|SPARCV9_BLK; + if (strstr(si,"+vis2")) + { + OPENSSL_sparcv9cap_P |= SPARCV9_VIS2; + OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; + return; + } + } +#ifdef M_KEEP + /* + * Solaris libdevinfo.so.1 is effectively incomatible with + * libmalloc.so.1. Specifically, if application is linked with + * -lmalloc, it crashes upon startup with SIGSEGV in + * free(3LIBMALLOC) called by di_fini. Prior call to + * mallopt(M_KEEP,0) somehow helps... But not always... + */ + if ((h = dlopen(NULL,RTLD_LAZY))) + { + union { void *p; int (*f)(int,int); } sym; + if ((sym.p = dlsym(h,"mallopt"))) (*sym.f)(M_KEEP,0); + dlclose(h); + } +#endif + if ((h = dlopen("libdevinfo.so.1",RTLD_LAZY))) do { di_init_t di_init; di_fini_t di_fini; @@ -110,24 +181,78 @@ void OPENSSL_cpuid_setup(void) if (h) dlclose(h); } -#elif defined(__linux) +#else + +static sigjmp_buf common_jmp; +static void common_handler(int sig) { siglongjmp(common_jmp,sig); } void OPENSSL_cpuid_setup(void) { char *e; + struct sigaction common_act,ill_oact,bus_oact; + sigset_t all_masked,oset; + static int trigger=0; + + if (trigger) return; + trigger=1; - if (e=getenv("OPENSSL_sparcv9cap")) + if ((e=getenv("OPENSSL_sparcv9cap"))) { - OPENSSL_sparcv9cap_P=strtoul(env,NULL,0); + OPENSSL_sparcv9cap_P=strtoul(e,NULL,0); return; } - /* Linux apparently supports UltraSPARC-I/II/III only */ - OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU|SPARCV9_VIS1; - } + /* Initial value, fits UltraSPARC-I&II... */ + OPENSSL_sparcv9cap_P = SPARCV9_PREFER_FPU|SPARCV9_TICK_PRIVILEGED; -#else + sigfillset(&all_masked); + sigdelset(&all_masked,SIGILL); + sigdelset(&all_masked,SIGTRAP); +#ifdef SIGEMT + sigdelset(&all_masked,SIGEMT); +#endif + sigdelset(&all_masked,SIGFPE); + sigdelset(&all_masked,SIGBUS); + sigdelset(&all_masked,SIGSEGV); + sigprocmask(SIG_SETMASK,&all_masked,&oset); + + memset(&common_act,0,sizeof(common_act)); + common_act.sa_handler = common_handler; + common_act.sa_mask = all_masked; -void OPENSSL_cpuid_setup(void) {} + sigaction(SIGILL,&common_act,&ill_oact); + sigaction(SIGBUS,&common_act,&bus_oact);/* T1 fails 16-bit ldda [on Linux] */ + + if (sigsetjmp(common_jmp,1) == 0) + { + _sparcv9_rdtick(); + OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; + } + + if (sigsetjmp(common_jmp,1) == 0) + { + _sparcv9_vis1_probe(); + OPENSSL_sparcv9cap_P |= SPARCV9_VIS1|SPARCV9_BLK; + /* detect UltraSPARC-Tx, see sparccpud.S for details... */ + if (_sparcv9_vis1_instrument() >= 12) + OPENSSL_sparcv9cap_P &= ~(SPARCV9_VIS1|SPARCV9_PREFER_FPU); + else + { + _sparcv9_vis2_probe(); + OPENSSL_sparcv9cap_P |= SPARCV9_VIS2; + } + } + + if (sigsetjmp(common_jmp,1) == 0) + { + _sparcv9_fmadd_probe(); + OPENSSL_sparcv9cap_P |= SPARCV9_FMADD; + } + + sigaction(SIGBUS,&bus_oact,NULL); + sigaction(SIGILL,&ill_oact,NULL); + + sigprocmask(SIG_SETMASK,&oset,NULL); + } #endif