sha1-x86_64.pl: fix win64-specific typos and add masm support.

diff --git a/crypto/sha/asm/sha1-x86_64.pl b/crypto/sha/asm/sha1-x86_64.pl
index 61ec16911bcc02adad4f9eacad9c5d9630ec1bd9..afcfb87a785971d94944ec7e4fd92d595ea058c4 100755 (executable)
--- a/crypto/sha/asm/sha1-x86_64.pl
+++ b/crypto/sha/asm/sha1-x86_64.pl
@@ -75,9 +75,12 @@ die "can't locate x86_64-xlate.pl";
 $avx=1 if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
                =~ /GNU assembler version ([2-9]\.[0-9]+)/ &&
           $1>=2.19);
-$avx=1 if (!$avx && $flavour =~ /nasm/ &&
+$avx=1 if (!$avx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&
           `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/ &&
           $1>=2.03);
+$avx=1 if (!$avx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) &&
+          `ml64 2>&1` =~ /Version ([0-9]+)\./ &&
+          $1>=10);
 
 open STDOUT,"| $^X $xlate $flavour $output";
 
@@ -697,7 +700,7 @@ $code.=<<___ if ($win64);
        movaps  64+64(%rsp),%xmm10
 ___
 $code.=<<___;
-       lea     `64+($win64?6*16:0)`(%rsp),%rsi
+       lea     `64+($win64?5*16:0)`(%rsp),%rsi
        mov     0(%rsi),%r12
        mov     8(%rsi),%rbp
        mov     16(%rsi),%rbx
@@ -1055,7 +1058,7 @@ $code.=<<___ if ($win64);
        movaps  64+64(%rsp),%xmm10
 ___
 $code.=<<___;
-       lea     `64+($win64?6*16:0)`(%rsp),%rsi
+       lea     `64+($win64?5*16:0)`(%rsp),%rsi
        mov     0(%rsi),%r12
        mov     8(%rsi),%rbp
        mov     16(%rsi),%rbx
@@ -1168,12 +1171,14 @@ ssse3_handler:
        lea     512($context),%rdi      # &context.Xmm6
        mov     \$10,%ecx
        .long   0xa548f3fc              # cld; rep movsq
-       lea     24+5*16(%rax),%rax      # adjust stack pointer
+       lea     `24+64+5*16`(%rax),%rax # adjust stack pointer
 
        mov     -8(%rax),%rbx
        mov     -16(%rax),%rbp
+       mov     -24(%rax),%r12
        mov     %rbx,144($context)      # restore context->Rbx
        mov     %rbp,160($context)      # restore context->Rbp
+       mov     %r12,216($context)      # restore cotnext->R12
 
 .Lcommon_seh_tail:
        mov     8(%rax),%rdi