--- /dev/null
+#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") ||
+ !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, 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
projects / cassiopeia.git / blobdiff