Attempt to resolve sporadic SEGV crashes in bn_sub_words in OpenSSH. I'm

[openssl.git] / crypto / x86_64cpuid.pl

diff --git a/crypto/x86_64cpuid.pl b/crypto/x86_64cpuid.pl
index 777d557783d8b6a85862fdb030a329d95feb104a..4d88ad191b37a3c8d878540fcc9987b1e6d59903 100644 (file)
--- a/crypto/x86_64cpuid.pl
+++ b/crypto/x86_64cpuid.pl
@@ -70,8 +70,8 @@ print<<___ if(!defined($win64a));
 .align 16
 OPENSSL_rdtsc:
        rdtsc
-       shl     \$32,%rdx
-       or      %rdx,%rax
+       shlq    \$32,%rdx
+       orq     %rdx,%rax
        ret
 .size  OPENSSL_rdtsc,.-OPENSSL_rdtsc
 
@@ -80,11 +80,11 @@ OPENSSL_rdtsc:
 .align 16
 OPENSSL_atomic_add:
        movl    (%rdi),%eax
-.Lspin:        lea     (%rsi,%rax),%r8
-lock;  cmpxchg %r8d,(%rdi)
+.Lspin:        leaq    (%rsi,%rax),%r8
+lock;  cmpxchgl        %r8d,(%rdi)
        jne     .Lspin
-       mov     %r8d,%eax
-       cdqe
+       movl    %r8d,%eax
+       .byte   0x48,0x98
        ret
 .size  OPENSSL_atomic_add,.-OPENSSL_atomic_add
 
@@ -108,28 +108,28 @@ OPENSSL_wipe_cpu:
        pxor    %xmm13,%xmm13
        pxor    %xmm14,%xmm14
        pxor    %xmm15,%xmm15
-       xor     %rcx,%rcx
-       xor     %rdx,%rdx
-       xor     %rsi,%rsi
-       xor     %rdi,%rdi
-       xor     %r8,%r8
-       xor     %r9,%r9
-       xor     %r10,%r10
-       xor     %r11,%r11
-       lea     8(%rsp),%rax
+       xorq    %rcx,%rcx
+       xorq    %rdx,%rdx
+       xorq    %rsi,%rsi
+       xorq    %rdi,%rdi
+       xorq    %r8,%r8
+       xorq    %r9,%r9
+       xorq    %r10,%r10
+       xorq    %r11,%r11
+       leaq    8(%rsp),%rax
        ret
 .size  OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu
 
 .globl OPENSSL_ia32_cpuid
 .align 16
 OPENSSL_ia32_cpuid:
-       mov     %rbx,%r8
-       mov     \$1,%eax
+       movq    %rbx,%r8
+       movl    \$1,%eax
        cpuid
-       shl     \$32,%rcx
-       mov     %edx,%eax
-       mov     %r8,%rbx
-       or      %rcx,%rax
+       shlq    \$32,%rcx
+       movl    %edx,%eax
+       movq    %r8,%rbx
+       orq     %rcx,%rax
        ret
 .size  OPENSSL_ia32_cpuid,.-OPENSSL_ia32_cpuid