diff options
Diffstat (limited to 'thirdparty/openssl/crypto/sparcv9cap.c')
| -rw-r--r-- | thirdparty/openssl/crypto/sparcv9cap.c | 393 |
1 files changed, 393 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/sparcv9cap.c b/thirdparty/openssl/crypto/sparcv9cap.c new file mode 100644 index 0000000000..a36e461792 --- /dev/null +++ b/thirdparty/openssl/crypto/sparcv9cap.c @@ -0,0 +1,393 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <setjmp.h> +#include <signal.h> +#include <sys/time.h> +#include <unistd.h> +#include <openssl/bn.h> + +#include "sparc_arch.h" + +#if defined(__GNUC__) && defined(__linux) +__attribute__ ((visibility("hidden"))) +#endif +unsigned int OPENSSL_sparcv9cap_P[2] = { SPARCV9_TICK_PRIVILEGED, 0 }; + +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_vis3(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 & 1) && num >= 6) { + if ((num & 15) == 0 && num <= 64 && + (OPENSSL_sparcv9cap_P[1] & (CFR_MONTMUL | CFR_MONTSQR)) == + (CFR_MONTMUL | CFR_MONTSQR)) { + 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); + 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); + 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); + 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); + 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); + static const bn_mul_mont_f funcs[4] = { + bn_mul_mont_t4_8, bn_mul_mont_t4_16, + bn_mul_mont_t4_24, bn_mul_mont_t4_32 + }; + bn_mul_mont_f worker = funcs[num / 16 - 1]; + + if ((*worker) (rp, ap, bp, np, n0)) + return 1; + /* retry once and fall back */ + if ((*worker) (rp, ap, bp, np, n0)) + return 1; + return bn_mul_mont_vis3(rp, ap, bp, np, n0, num); + } + if ((OPENSSL_sparcv9cap_P[0] & SPARCV9_VIS3)) + return bn_mul_mont_vis3(rp, ap, bp, np, n0, num); + else if (num >= 8 && + (OPENSSL_sparcv9cap_P[0] & + (SPARCV9_PREFER_FPU | SPARCV9_VIS1)) == + (SPARCV9_PREFER_FPU | SPARCV9_VIS1)) + return bn_mul_mont_fpu(rp, ap, bp, np, n0, num); + } + 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 _sparcv9_rdcfr(void); +void _sparcv9_vis3_probe(void); +unsigned long _sparcv9_random(void); +size_t _sparcv9_vis1_instrument_bus(unsigned int *, size_t); +size_t _sparcv9_vis1_instrument_bus2(unsigned int *, size_t, size_t); + +unsigned long OPENSSL_rdtsc(void) +{ + if (OPENSSL_sparcv9cap_P[0] & SPARCV9_TICK_PRIVILEGED) +#if defined(__sun) && defined(__SVR4) + return gethrtime(); +#else + return 0; +#endif + else + return _sparcv9_rdtick(); +} + +size_t OPENSSL_instrument_bus(unsigned int *out, size_t cnt) +{ + if ((OPENSSL_sparcv9cap_P[0] & (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[0] & (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 <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[0] |= 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[0] &= ~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[0] &= ~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[0] = 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[0] |= SPARCV9_PREFER_FPU; + } + + if (sysinfo(SI_ISALIST, si, sizeof(si)) > 0) { + if (strstr(si, "+vis")) + OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1 | SPARCV9_BLK; + if (strstr(si, "+vis2")) { + OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2; + OPENSSL_sparcv9cap_P[0] &= ~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); +} + +#if defined(__sun) && defined(__SVR4) +# if defined(__GNUC__) && __GNUC__>=2 +extern unsigned int getisax(unsigned int vec[], unsigned int sz) __attribute__ ((weak)); +# elif defined(__SUNPRO_C) +#pragma weak getisax +extern unsigned int getisax(unsigned int vec[], unsigned int sz); +# else +static unsigned int (*getisax) (unsigned int vec[], unsigned int sz) = NULL; +# endif +#endif + +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[0] = strtoul(e, NULL, 0); + if ((e = strchr(e, ':'))) + OPENSSL_sparcv9cap_P[1] = strtoul(e + 1, NULL, 0); + return; + } + +#if defined(__sun) && defined(__SVR4) + if (getisax != NULL) { + unsigned int vec[1]; + + if (getisax (vec,1)) { + if (vec[0]&0x0020) OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1; + if (vec[0]&0x0040) OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2; + if (vec[0]&0x0080) OPENSSL_sparcv9cap_P[0] |= SPARCV9_BLK; + if (vec[0]&0x0100) OPENSSL_sparcv9cap_P[0] |= SPARCV9_FMADD; + if (vec[0]&0x0400) OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS3; + + /* reconstruct %cfr copy */ + OPENSSL_sparcv9cap_P[1] = (vec[0]>>17)&0x3ff; + OPENSSL_sparcv9cap_P[1] |= (OPENSSL_sparcv9cap_P[1]&CFR_MONTMUL)<<1; + if (vec[0]&0x20000000) OPENSSL_sparcv9cap_P[1] |= CFR_CRC32C; + + /* Some heuristics */ + /* all known VIS2-capable CPUs have unprivileged tick counter */ + if (OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS2) + OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED; + + OPENSSL_sparcv9cap_P[0] |= SPARCV9_PREFER_FPU; + + /* detect UltraSPARC-Tx, see sparccpud.S for details... */ + if ((OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS1) && + _sparcv9_vis1_instrument() >= 12) + OPENSSL_sparcv9cap_P[0] &= ~(SPARCV9_VIS1 | SPARCV9_PREFER_FPU); + } + + if (sizeof(size_t) == 8) + OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK; + + return; + } +#endif + + /* Initial value, fits UltraSPARC-I&II... */ + OPENSSL_sparcv9cap_P[0] = 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[0] &= ~SPARCV9_TICK_PRIVILEGED; + } + + if (sigsetjmp(common_jmp, 1) == 0) { + _sparcv9_vis1_probe(); + OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1 | SPARCV9_BLK; + /* detect UltraSPARC-Tx, see sparccpud.S for details... */ + if (_sparcv9_vis1_instrument() >= 12) + OPENSSL_sparcv9cap_P[0] &= ~(SPARCV9_VIS1 | SPARCV9_PREFER_FPU); + else { + _sparcv9_vis2_probe(); + OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2; + } + } + + if (sigsetjmp(common_jmp, 1) == 0) { + _sparcv9_fmadd_probe(); + OPENSSL_sparcv9cap_P[0] |= SPARCV9_FMADD; + } + + /* + * VIS3 flag is tested independently from VIS1, unlike VIS2 that is, + * because VIS3 defines even integer instructions. + */ + if (sigsetjmp(common_jmp, 1) == 0) { + _sparcv9_vis3_probe(); + OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS3; + } +# if 0 /* was planned at some point but never + * implemented in hardware */ + if (sigsetjmp(common_jmp, 1) == 0) { + (void)_sparcv9_random(); + OPENSSL_sparcv9cap_P[0] |= SPARCV9_RANDOM; + } +# endif + + /* + * In wait for better solution _sparcv9_rdcfr is masked by + * VIS3 flag, because it goes to uninterruptable endless + * loop on UltraSPARC II running Solaris. Things might be + * different on Linux... + */ + if ((OPENSSL_sparcv9cap_P[0] & SPARCV9_VIS3) && + sigsetjmp(common_jmp, 1) == 0) { + OPENSSL_sparcv9cap_P[1] = (unsigned int)_sparcv9_rdcfr(); + } + + sigaction(SIGBUS, &bus_oact, NULL); + sigaction(SIGILL, &ill_oact, NULL); + + sigprocmask(SIG_SETMASK, &oset, NULL); + + if (sizeof(size_t) == 8) + OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK; +# ifdef __linux + else { + int ret = syscall(340); + + if (ret >= 0 && ret & 1) + OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK; + } +# endif +} + +#endif |