From: Dr. Stephen Henson Date: Mon, 5 Jul 2010 22:20:36 +0000 (+0000) Subject: SPARCv9 assembler pack: refine CPU detection on Linux, fix for "unaligned X-Git-Tag: OpenSSL_1_0_1-beta1~500 X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff_plain;h=40b6d4938742d8199f1191a116915623b2f79c8b SPARCv9 assembler pack: refine CPU detection on Linux, fix for "unaligned opcodes detected in executable segment" error [from HEAD], original from Andy. --- diff --git a/crypto/sha/asm/sha1-sparcv9.pl b/crypto/sha/asm/sha1-sparcv9.pl index 8306fc88cc..5c161cecd6 100644 --- a/crypto/sha/asm/sha1-sparcv9.pl +++ b/crypto/sha/asm/sha1-sparcv9.pl @@ -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 " +.align 4 ___ $code =~ s/\`([^\`]*)\`/eval $1/gem; diff --git a/crypto/sha/asm/sha1-sparcv9a.pl b/crypto/sha/asm/sha1-sparcv9a.pl index 15eb854bad..85e8d68086 100644 --- a/crypto/sha/asm/sha1-sparcv9a.pl +++ b/crypto/sha/asm/sha1-sparcv9a.pl @@ -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 " +.align 4 ___ # Purpose of these subroutines is to explicitly encode VIS instructions, diff --git a/crypto/sha/asm/sha512-sparcv9.pl b/crypto/sha/asm/sha512-sparcv9.pl index 54241aab50..ec5d78135e 100644 --- a/crypto/sha/asm/sha512-sparcv9.pl +++ b/crypto/sha/asm/sha512-sparcv9.pl @@ -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 " +.align 4 ___ $code =~ s/\`([^\`]*)\`/eval $1/gem; diff --git a/crypto/sparccpuid.S b/crypto/sparccpuid.S index aa8b11efc9..1140b5c559 100644 --- a/crypto/sparccpuid.S +++ b/crypto/sparccpuid.S @@ -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: diff --git a/crypto/sparcv9cap.c b/crypto/sparcv9cap.c index 5f31d20bd0..1d820f4c0a 100644 --- a/crypto/sparcv9cap.c +++ b/crypto/sparcv9cap.c @@ -1,6 +1,8 @@ #include #include #include +#include +#include #include #include @@ -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