| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <setjmp.h> |
| #include <signal.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 (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); |
| |
| unsigned long OPENSSL_rdtsc(void) |
| { |
| if (OPENSSL_sparcv9cap_P & SPARCV9_TICK_PRIVILEGED) |
| #if defined(__sun) && defined(__SVR4) |
| return gethrtime(); |
| #else |
| return 0; |
| #endif |
| else |
| return _sparcv9_rdtick(); |
| } |
| |
| #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 <malloc.h> |
| # 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") || |
| /* covers II,III,IV */ |
| !strncmp(name, "SUNW,UltraSPARC-I", 17)) { |
| 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; |
| } |
| } |
| # 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; |
| 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 |
| |
| 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"))) { |
| OPENSSL_sparcv9cap_P = strtoul(e, NULL, 0); |
| return; |
| } |
| |
| /* Initial value, fits UltraSPARC-I&II... */ |
| OPENSSL_sparcv9cap_P = SPARCV9_PREFER_FPU | SPARCV9_TICK_PRIVILEGED; |
| |
| 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; |
| |
| 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; |
| /* 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 |
