SPARCv9 assembler pack: refine CPU detection on Linux, fix for "unaligned
authorDr. Stephen Henson <steve@openssl.org>
Mon, 5 Jul 2010 22:20:36 +0000 (22:20 +0000)
committerDr. Stephen Henson <steve@openssl.org>
Mon, 5 Jul 2010 22:20:36 +0000 (22:20 +0000)
opcodes detected in executable segment" error [from HEAD], original from Andy.

crypto/sha/asm/sha1-sparcv9.pl
crypto/sha/asm/sha1-sparcv9a.pl
crypto/sha/asm/sha512-sparcv9.pl
crypto/sparccpuid.S
crypto/sparcv9cap.c

index 8306fc8..5c161ce 100644 (file)
@@ -276,6 +276,7 @@ $code.=<<___;
 .type  sha1_block_data_order,#function
 .size  sha1_block_data_order,(.-sha1_block_data_order)
 .asciz "SHA1 block transform for SPARCv9, CRYPTOGAMS by <appro\@openssl.org>"
+.align 4
 ___
 
 $code =~ s/\`([^\`]*)\`/eval $1/gem;
index 15eb854..85e8d68 100644 (file)
@@ -539,6 +539,7 @@ $code.=<<___;
 .type  sha1_block_data_order,#function
 .size  sha1_block_data_order,(.-sha1_block_data_order)
 .asciz "SHA1 block transform for SPARCv9a, CRYPTOGAMS by <appro\@openssl.org>"
+.align 4
 ___
 
 # Purpose of these subroutines is to explicitly encode VIS instructions,
index 54241aa..ec5d781 100644 (file)
@@ -586,6 +586,7 @@ $code.=<<___;
 .type  sha${label}_block_data_order,#function
 .size  sha${label}_block_data_order,(.-sha${label}_block_data_order)
 .asciz "SHA${label} block transform for SPARCv9, CRYPTOGAMS by <appro\@openssl.org>"
+.align 4
 ___
 
 $code =~ s/\`([^\`]*)\`/eval $1/gem;
index aa8b11e..1140b5c 100644 (file)
@@ -225,13 +225,33 @@ _sparcv9_rdtick:
        xor     %o0,%o0,%o0
        .word   0x91410000      !rd     %tick,%o0
        retl
-       .word   0x93323020      !srlx   %o2,32,%o1
+       .word   0x93323020      !srlx   %o0,32,%o1
 .notick:
        retl
        xor     %o1,%o1,%o1
 .type  _sparcv9_rdtick,#function
 .size  _sparcv9_rdtick,.-_sparcv9_rdtick
 
+.global        _sparcv9_rdwrasi
+.align 8
+_sparcv9_rdwrasi:
+       .word   0x9340c000      !rd     %asi,%o1
+       .word   0x87820000      !wr     %o0,%g0,%asi
+       retl
+       mov     %o1,%o0
+.type  _sparcv9_rdwrasi,#function
+.size  _sparcv9_rdwrasi,.-_sparcv9_rdwrasi
+
+.global        _sparcv9_vis1_probe
+.align 8
+_sparcv9_vis1_probe:
+       .word   0x81b00c20      !fzeros %f0
+       .word   0xc19ba002+BIAS !ldda   [%sp+BIAS+2]%asi,%f0
+       retl
+       nop
+.type  _sparcv9_vis1_probe,#function
+.size  _sparcv9_vis1_probe,.-_sparcv9_vis1_probe
+
 .global        OPENSSL_cleanse
 .align 32
 OPENSSL_cleanse:
index 5f31d20..1d820f4 100644 (file)
@@ -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 +26,12 @@ 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);
+unsigned long  _sparcv9_rdwrasi(unsigned long);
+void           _sparcv9_vis1_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();
@@ -137,9 +142,16 @@ 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;
+       unsigned long           oasi;
+       int                     sig;
  
        if ((e=getenv("OPENSSL_sparcv9cap")))
                {
@@ -149,6 +161,55 @@ void OPENSSL_cpuid_setup(void)
 
        /* For now we assume that the rest supports UltraSPARC-I* only */
        OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU|SPARCV9_VIS1;
+
+       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 */
+       oasi = _sparcv9_rdwrasi(0xD2);          /* ASI_FL16_P */
+       if ((sig=sigsetjmp(common_jmp,0)) == 0)
+               {
+               _sparcv9_vis1_probe();
+               OPENSSL_sparcv9cap_P |= SPARCV9_VIS1;
+               }
+       else if (sig == SIGBUS)                 /* T1 fails 16-bit ldda */
+               {
+               OPENSSL_sparcv9cap_P &= ~SPARCV9_PREFER_FPU;
+               }
+       else
+               {
+               OPENSSL_sparcv9cap_P &= ~SPARCV9_VIS1;
+               }
+       _sparcv9_rdwrasi(oasi);
+       sigaction(SIGBUS,&bus_oact,NULL);
+       sigaction(SIGILL,&ill_oact,NULL);
+
+       sigaction(SIGILL,&common_act,&ill_oact);
+       if (sigsetjmp(common_jmp,0) == 0)
+               {
+               _sparcv9_rdtick();
+               OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED;
+               }
+       else
+               {
+               OPENSSL_sparcv9cap_P |= SPARCV9_TICK_PRIVILEGED;
+               }
+       sigaction(SIGILL,&ill_oact,NULL);
+
+       sigprocmask(SIG_SETMASK,&oset,NULL);
        }
 
 #endif