245 lines
7.1 KiB
C
245 lines
7.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <setjmp.h>
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#include <signal.h>
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#include <sys/time.h>
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#include <openssl/bn.h>
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#define SPARCV9_TICK_PRIVILEGED (1<<0)
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#define SPARCV9_PREFER_FPU (1<<1)
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#define SPARCV9_VIS1 (1<<2)
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#define SPARCV9_VIS2 (1<<3) /* reserved */
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#define SPARCV9_FMADD (1<<4) /* reserved for SPARC64 V */
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static int OPENSSL_sparcv9cap_P = SPARCV9_TICK_PRIVILEGED;
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int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
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const BN_ULONG *np, const BN_ULONG *n0, int num)
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{
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int bn_mul_mont_fpu(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
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const BN_ULONG *np, const BN_ULONG *n0, int num);
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int bn_mul_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
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const BN_ULONG *np, const BN_ULONG *n0, int num);
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if (num >= 8 && !(num & 1) &&
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(OPENSSL_sparcv9cap_P & (SPARCV9_PREFER_FPU | SPARCV9_VIS1)) ==
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(SPARCV9_PREFER_FPU | SPARCV9_VIS1))
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return bn_mul_mont_fpu(rp, ap, bp, np, n0, num);
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else
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return bn_mul_mont_int(rp, ap, bp, np, n0, num);
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}
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unsigned long _sparcv9_rdtick(void);
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void _sparcv9_vis1_probe(void);
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unsigned long _sparcv9_vis1_instrument(void);
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void _sparcv9_vis2_probe(void);
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void _sparcv9_fmadd_probe(void);
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unsigned long OPENSSL_rdtsc(void)
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{
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if (OPENSSL_sparcv9cap_P & SPARCV9_TICK_PRIVILEGED)
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#if defined(__sun) && defined(__SVR4)
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return gethrtime();
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#else
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return 0;
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#endif
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else
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return _sparcv9_rdtick();
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}
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#if 0 && defined(__sun) && defined(__SVR4)
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/*
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* This code path is disabled, because of incompatibility of libdevinfo.so.1
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* and libmalloc.so.1 (see below for details)
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*/
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# include <malloc.h>
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# include <dlfcn.h>
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# include <libdevinfo.h>
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# include <sys/systeminfo.h>
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typedef di_node_t(*di_init_t) (const char *, uint_t);
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typedef void (*di_fini_t) (di_node_t);
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typedef char *(*di_node_name_t) (di_node_t);
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typedef int (*di_walk_node_t) (di_node_t, uint_t, di_node_name_t,
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int (*)(di_node_t, di_node_name_t));
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# define DLLINK(h,name) (name=(name##_t)dlsym((h),#name))
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static int walk_nodename(di_node_t node, di_node_name_t di_node_name)
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{
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char *name = (*di_node_name) (node);
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/* This is expected to catch all UltraSPARC flavors prior T1 */
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if (!strcmp(name, "SUNW,UltraSPARC") ||
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/* covers II,III,IV */
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!strncmp(name, "SUNW,UltraSPARC-I", 17)) {
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OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU | SPARCV9_VIS1;
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/* %tick is privileged only on UltraSPARC-I/II, but not IIe */
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if (name[14] != '\0' && name[17] != '\0' && name[18] != '\0')
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OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED;
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return DI_WALK_TERMINATE;
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}
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/* This is expected to catch remaining UltraSPARCs, such as T1 */
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else if (!strncmp(name, "SUNW,UltraSPARC", 15)) {
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OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED;
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return DI_WALK_TERMINATE;
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}
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return DI_WALK_CONTINUE;
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}
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void OPENSSL_cpuid_setup(void)
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{
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void *h;
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char *e, si[256];
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static int trigger = 0;
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if (trigger)
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return;
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trigger = 1;
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if ((e = getenv("OPENSSL_sparcv9cap"))) {
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OPENSSL_sparcv9cap_P = strtoul(e, NULL, 0);
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return;
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}
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if (sysinfo(SI_MACHINE, si, sizeof(si)) > 0) {
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if (strcmp(si, "sun4v"))
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/* FPU is preferred for all CPUs, but US-T1/2 */
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OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU;
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}
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if (sysinfo(SI_ISALIST, si, sizeof(si)) > 0) {
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if (strstr(si, "+vis"))
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OPENSSL_sparcv9cap_P |= SPARCV9_VIS1;
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if (strstr(si, "+vis2")) {
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OPENSSL_sparcv9cap_P |= SPARCV9_VIS2;
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OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED;
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return;
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}
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}
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# ifdef M_KEEP
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/*
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* Solaris libdevinfo.so.1 is effectively incomatible with
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* libmalloc.so.1. Specifically, if application is linked with
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* -lmalloc, it crashes upon startup with SIGSEGV in
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* free(3LIBMALLOC) called by di_fini. Prior call to
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* mallopt(M_KEEP,0) somehow helps... But not always...
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*/
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if ((h = dlopen(NULL, RTLD_LAZY))) {
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union {
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void *p;
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int (*f) (int, int);
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} sym;
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if ((sym.p = dlsym(h, "mallopt")))
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(*sym.f) (M_KEEP, 0);
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dlclose(h);
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}
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# endif
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if ((h = dlopen("libdevinfo.so.1", RTLD_LAZY)))
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do {
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di_init_t di_init;
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di_fini_t di_fini;
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di_walk_node_t di_walk_node;
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di_node_name_t di_node_name;
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di_node_t root_node;
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if (!DLLINK(h, di_init))
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break;
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if (!DLLINK(h, di_fini))
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break;
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if (!DLLINK(h, di_walk_node))
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break;
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if (!DLLINK(h, di_node_name))
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break;
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if ((root_node = (*di_init) ("/", DINFOSUBTREE)) != DI_NODE_NIL) {
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(*di_walk_node) (root_node, DI_WALK_SIBFIRST,
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di_node_name, walk_nodename);
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(*di_fini) (root_node);
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}
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} while (0);
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if (h)
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dlclose(h);
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}
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#else
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static sigjmp_buf common_jmp;
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static void common_handler(int sig)
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{
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siglongjmp(common_jmp, sig);
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}
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void OPENSSL_cpuid_setup(void)
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{
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char *e;
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struct sigaction common_act, ill_oact, bus_oact;
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sigset_t all_masked, oset;
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static int trigger = 0;
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if (trigger)
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return;
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trigger = 1;
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if ((e = getenv("OPENSSL_sparcv9cap"))) {
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OPENSSL_sparcv9cap_P = strtoul(e, NULL, 0);
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return;
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}
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/* Initial value, fits UltraSPARC-I&II... */
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OPENSSL_sparcv9cap_P = SPARCV9_PREFER_FPU | SPARCV9_TICK_PRIVILEGED;
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sigfillset(&all_masked);
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sigdelset(&all_masked, SIGILL);
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sigdelset(&all_masked, SIGTRAP);
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# ifdef SIGEMT
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sigdelset(&all_masked, SIGEMT);
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# endif
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sigdelset(&all_masked, SIGFPE);
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sigdelset(&all_masked, SIGBUS);
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sigdelset(&all_masked, SIGSEGV);
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sigprocmask(SIG_SETMASK, &all_masked, &oset);
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memset(&common_act, 0, sizeof(common_act));
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common_act.sa_handler = common_handler;
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common_act.sa_mask = all_masked;
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sigaction(SIGILL, &common_act, &ill_oact);
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sigaction(SIGBUS, &common_act, &bus_oact); /* T1 fails 16-bit ldda [on
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* Linux] */
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if (sigsetjmp(common_jmp, 1) == 0) {
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_sparcv9_rdtick();
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OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED;
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}
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if (sigsetjmp(common_jmp, 1) == 0) {
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_sparcv9_vis1_probe();
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OPENSSL_sparcv9cap_P |= SPARCV9_VIS1;
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/* detect UltraSPARC-Tx, see sparccpud.S for details... */
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if (_sparcv9_vis1_instrument() >= 12)
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OPENSSL_sparcv9cap_P &= ~(SPARCV9_VIS1 | SPARCV9_PREFER_FPU);
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else {
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_sparcv9_vis2_probe();
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OPENSSL_sparcv9cap_P |= SPARCV9_VIS2;
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}
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}
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if (sigsetjmp(common_jmp, 1) == 0) {
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_sparcv9_fmadd_probe();
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OPENSSL_sparcv9cap_P |= SPARCV9_FMADD;
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}
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sigaction(SIGBUS, &bus_oact, NULL);
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sigaction(SIGILL, &ill_oact, NULL);
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sigprocmask(SIG_SETMASK, &oset, NULL);
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}
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#endif
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