1 files changed, 90 insertions, 7 deletions

diff --git a/src/lib/libcrypto/sparcv9cap.c b/src/lib/libcrypto/sparcv9cap.c
index 5f31d20bd0..ed195ab402 100644
--- a/src/lib/libcrypto/sparcv9cap.c
+++ b/src/lib/libcrypto/sparcv9cap.c
@@ -1,6 +1,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <setjmp.h>
+#include <signal.h>
 #include <sys/time.h>
 #include <openssl/bn.h>
 
@@ -9,6 +11,7 @@
 #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)
@@ -23,10 +26,14 @@ int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_U
                 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)
         {
-        unsigned long _sparcv9_rdtick(void);
-
         if (OPENSSL_sparcv9cap_P&SPARCV9_TICK_PRIVILEGED)
 #if defined(__sun) && defined(__SVR4)
                 return gethrtime();
@@ -37,8 +44,11 @@ unsigned long OPENSSL_rdtsc(void)
                 return _sparcv9_rdtick();
         }
 
-#if defined(__sun) && defined(__SVR4)
-
+#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>
@@ -110,7 +120,21 @@ void OPENSSL_cpuid_setup(void)
                         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;
@@ -137,9 +161,19 @@ void OPENSSL_cpuid_setup(void)
 
 #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;
+        int                     sig;
+        static int trigger=0;
+
+        if (trigger) return;
+        trigger=1;
  
         if ((e=getenv("OPENSSL_sparcv9cap")))
                 {
@@ -147,8 +181,57 @@ void OPENSSL_cpuid_setup(void)
                 return;
                 }
 
-        /* For now we assume that the rest supports UltraSPARC-I* only */
-        OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU|SPARCV9_VIS1;
+        /* 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