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authormarha <marha@users.sourceforge.net>2010-03-30 12:36:28 +0000
committermarha <marha@users.sourceforge.net>2010-03-30 12:36:28 +0000
commitff48c0d9098080b51ea12710029135916d117806 (patch)
tree96e6af9caf170ba21a1027b24e306a07e27d7b75 /openssl/crypto/bn/asm/x86_64-mont.pl
parentbb731f5ac92655c4860a41fa818a7a63005f8369 (diff)
downloadvcxsrv-ff48c0d9098080b51ea12710029135916d117806.tar.gz
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svn merge -r514:HEAD ^/branches/released .
Diffstat (limited to 'openssl/crypto/bn/asm/x86_64-mont.pl')
-rw-r--r--openssl/crypto/bn/asm/x86_64-mont.pl136
1 files changed, 126 insertions, 10 deletions
diff --git a/openssl/crypto/bn/asm/x86_64-mont.pl b/openssl/crypto/bn/asm/x86_64-mont.pl
index c43b69592..3b7a6f243 100644
--- a/openssl/crypto/bn/asm/x86_64-mont.pl
+++ b/openssl/crypto/bn/asm/x86_64-mont.pl
@@ -15,14 +15,18 @@
# respectful 50%. It remains to be seen if loop unrolling and
# dedicated squaring routine can provide further improvement...
-$output=shift;
+$flavour = shift;
+$output = shift;
+if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
+
+$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
die "can't locate x86_64-xlate.pl";
-open STDOUT,"| $^X $xlate $output";
+open STDOUT,"| $^X $xlate $flavour $output";
# int bn_mul_mont(
$rp="%rdi"; # BN_ULONG *rp,
@@ -55,13 +59,14 @@ bn_mul_mont:
push %r15
mov ${num}d,${num}d
- lea 2($num),%rax
- mov %rsp,%rbp
- neg %rax
- lea (%rsp,%rax,8),%rsp # tp=alloca(8*(num+2))
+ lea 2($num),%r10
+ mov %rsp,%r11
+ neg %r10
+ lea (%rsp,%r10,8),%rsp # tp=alloca(8*(num+2))
and \$-1024,%rsp # minimize TLB usage
- mov %rbp,8(%rsp,$num,8) # tp[num+1]=%rsp
+ mov %r11,8(%rsp,$num,8) # tp[num+1]=%rsp
+.Lprologue:
mov %rdx,$bp # $bp reassigned, remember?
mov ($n0),$n0 # pull n0[0] value
@@ -197,18 +202,129 @@ bn_mul_mont:
dec $j
jge .Lcopy
- mov 8(%rsp,$num,8),%rsp # restore %rsp
+ mov 8(%rsp,$num,8),%rsi # restore %rsp
mov \$1,%rax
+ mov (%rsi),%r15
+ mov 8(%rsi),%r14
+ mov 16(%rsi),%r13
+ mov 24(%rsi),%r12
+ mov 32(%rsi),%rbp
+ mov 40(%rsi),%rbx
+ lea 48(%rsi),%rsp
+.Lepilogue:
+ ret
+.size bn_mul_mont,.-bn_mul_mont
+.asciz "Montgomery Multiplication for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
+.align 16
+___
+
+# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
+# CONTEXT *context,DISPATCHER_CONTEXT *disp)
+if ($win64) {
+$rec="%rcx";
+$frame="%rdx";
+$context="%r8";
+$disp="%r9";
+
+$code.=<<___;
+.extern __imp_RtlVirtualUnwind
+.type se_handler,\@abi-omnipotent
+.align 16
+se_handler:
+ push %rsi
+ push %rdi
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ pushfq
+ sub \$64,%rsp
+
+ mov 120($context),%rax # pull context->Rax
+ mov 248($context),%rbx # pull context->Rip
+
+ lea .Lprologue(%rip),%r10
+ cmp %r10,%rbx # context->Rip<.Lprologue
+ jb .Lin_prologue
+
+ mov 152($context),%rax # pull context->Rsp
+
+ lea .Lepilogue(%rip),%r10
+ cmp %r10,%rbx # context->Rip>=.Lepilogue
+ jae .Lin_prologue
+
+ mov 192($context),%r10 # pull $num
+ mov 8(%rax,%r10,8),%rax # pull saved stack pointer
+ lea 48(%rax),%rax
+
+ mov -8(%rax),%rbx
+ mov -16(%rax),%rbp
+ mov -24(%rax),%r12
+ mov -32(%rax),%r13
+ mov -40(%rax),%r14
+ mov -48(%rax),%r15
+ mov %rbx,144($context) # restore context->Rbx
+ mov %rbp,160($context) # restore context->Rbp
+ mov %r12,216($context) # restore context->R12
+ mov %r13,224($context) # restore context->R13
+ mov %r14,232($context) # restore context->R14
+ mov %r15,240($context) # restore context->R15
+
+.Lin_prologue:
+ mov 8(%rax),%rdi
+ mov 16(%rax),%rsi
+ mov %rax,152($context) # restore context->Rsp
+ mov %rsi,168($context) # restore context->Rsi
+ mov %rdi,176($context) # restore context->Rdi
+
+ mov 40($disp),%rdi # disp->ContextRecord
+ mov $context,%rsi # context
+ mov \$154,%ecx # sizeof(CONTEXT)
+ .long 0xa548f3fc # cld; rep movsq
+
+ mov $disp,%rsi
+ xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
+ mov 8(%rsi),%rdx # arg2, disp->ImageBase
+ mov 0(%rsi),%r8 # arg3, disp->ControlPc
+ mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
+ mov 40(%rsi),%r10 # disp->ContextRecord
+ lea 56(%rsi),%r11 # &disp->HandlerData
+ lea 24(%rsi),%r12 # &disp->EstablisherFrame
+ mov %r10,32(%rsp) # arg5
+ mov %r11,40(%rsp) # arg6
+ mov %r12,48(%rsp) # arg7
+ mov %rcx,56(%rsp) # arg8, (NULL)
+ call *__imp_RtlVirtualUnwind(%rip)
+
+ mov \$1,%eax # ExceptionContinueSearch
+ add \$64,%rsp
+ popfq
pop %r15
pop %r14
pop %r13
pop %r12
pop %rbp
pop %rbx
+ pop %rdi
+ pop %rsi
ret
-.size bn_mul_mont,.-bn_mul_mont
-.asciz "Montgomery Multiplication for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
+.size se_handler,.-se_handler
+
+.section .pdata
+.align 4
+ .rva .LSEH_begin_bn_mul_mont
+ .rva .LSEH_end_bn_mul_mont
+ .rva .LSEH_info_bn_mul_mont
+
+.section .xdata
+.align 8
+.LSEH_info_bn_mul_mont:
+ .byte 9,0,0,0
+ .rva se_handler
___
+}
print $code;
close STDOUT;