Initial import

1 files changed, 351 insertions, 0 deletions

diff --git a/openssl/crypto/sha/asm/sha1-x86_64.pl b/openssl/crypto/sha/asm/sha1-x86_64.pl
new file mode 100755
index 00000000..4edc5ea9
--- /dev/null
+++ b/openssl/crypto/sha/asm/sha1-x86_64.pl
@@ -0,0 +1,351 @@
+#!/usr/bin/env perl
+#
+# ====================================================================
+# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+# ====================================================================
+#
+# sha1_block procedure for x86_64.
+#
+# It was brought to my attention that on EM64T compiler-generated code
+# was far behind 32-bit assembler implementation. This is unlike on
+# Opteron where compiler-generated code was only 15% behind 32-bit
+# assembler, which originally made it hard to motivate the effort.
+# There was suggestion to mechanically translate 32-bit code, but I
+# dismissed it, reasoning that x86_64 offers enough register bank
+# capacity to fully utilize SHA-1 parallelism. Therefore this fresh
+# implementation:-) However! While 64-bit code does performs better
+# on Opteron, I failed to beat 32-bit assembler on EM64T core. Well,
+# x86_64 does offer larger *addressable* bank, but out-of-order core
+# reaches for even more registers through dynamic aliasing, and EM64T
+# core must have managed to run-time optimize even 32-bit code just as
+# good as 64-bit one. Performance improvement is summarized in the
+# following table:
+#
+#		gcc 3.4		32-bit asm	cycles/byte
+# Opteron	+45%		+20%		6.8
+# Xeon P4	+65%		+0%		9.9
+# Core2		+60%		+10%		7.0
+
+$flavour = shift;
+$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 $flavour $output";
+
+$ctx="%rdi";	# 1st arg
+$inp="%rsi";	# 2nd arg
+$num="%rdx";	# 3rd arg
+
+# reassign arguments in order to produce more compact code
+$ctx="%r8";
+$inp="%r9";
+$num="%r10";
+
+$xi="%eax";
+$t0="%ebx";
+$t1="%ecx";
+$A="%edx";
+$B="%esi";
+$C="%edi";
+$D="%ebp";
+$E="%r11d";
+$T="%r12d";
+
+@V=($A,$B,$C,$D,$E,$T);
+
+sub PROLOGUE {
+my $func=shift;
+$code.=<<___;
+.globl	$func
+.type	$func,\@function,3
+.align	16
+$func:
+	push	%rbx
+	push	%rbp
+	push	%r12
+	mov	%rsp,%r11
+	mov	%rdi,$ctx	# reassigned argument
+	sub	\$`8+16*4`,%rsp
+	mov	%rsi,$inp	# reassigned argument
+	and	\$-64,%rsp
+	mov	%rdx,$num	# reassigned argument
+	mov	%r11,`16*4`(%rsp)
+.Lprologue:
+
+	mov	0($ctx),$A
+	mov	4($ctx),$B
+	mov	8($ctx),$C
+	mov	12($ctx),$D
+	mov	16($ctx),$E
+___
+}
+
+sub EPILOGUE {
+my $func=shift;
+$code.=<<___;
+	mov	`16*4`(%rsp),%rsi
+	mov	(%rsi),%r12
+	mov	8(%rsi),%rbp
+	mov	16(%rsi),%rbx
+	lea	24(%rsi),%rsp
+.Lepilogue:
+	ret
+.size	$func,.-$func
+___
+}
+
+sub BODY_00_19 {
+my ($i,$a,$b,$c,$d,$e,$f,$host)=@_;
+my $j=$i+1;
+$code.=<<___ if ($i==0);
+	mov	`4*$i`($inp),$xi	
+	`"bswap	$xi"	if(!defined($host))`
+	mov	$xi,`4*$i`(%rsp)
+___
+$code.=<<___ if ($i<15);
+	lea	0x5a827999($xi,$e),$f
+	mov	$c,$t0
+	mov	`4*$j`($inp),$xi
+	mov	$a,$e
+	xor	$d,$t0
+	`"bswap	$xi"	if(!defined($host))`	
+	rol	\$5,$e
+	and	$b,$t0
+	mov	$xi,`4*$j`(%rsp)
+	add	$e,$f
+	xor	$d,$t0
+	rol	\$30,$b
+	add	$t0,$f
+___
+$code.=<<___ if ($i>=15);
+	lea	0x5a827999($xi,$e),$f
+	mov	`4*($j%16)`(%rsp),$xi
+	mov	$c,$t0
+	mov	$a,$e
+	xor	`4*(($j+2)%16)`(%rsp),$xi
+	xor	$d,$t0
+	rol	\$5,$e
+	xor	`4*(($j+8)%16)`(%rsp),$xi
+	and	$b,$t0
+	add	$e,$f
+	xor	`4*(($j+13)%16)`(%rsp),$xi
+	xor	$d,$t0
+	rol	\$30,$b
+	add	$t0,$f
+	rol	\$1,$xi
+	mov	$xi,`4*($j%16)`(%rsp)
+___
+}
+
+sub BODY_20_39 {
+my ($i,$a,$b,$c,$d,$e,$f)=@_;
+my $j=$i+1;
+my $K=($i<40)?0x6ed9eba1:0xca62c1d6;
+$code.=<<___ if ($i<79);
+	lea	$K($xi,$e),$f
+	mov	`4*($j%16)`(%rsp),$xi
+	mov	$c,$t0
+	mov	$a,$e
+	xor	`4*(($j+2)%16)`(%rsp),$xi
+	xor	$b,$t0
+	rol	\$5,$e
+	xor	`4*(($j+8)%16)`(%rsp),$xi
+	xor	$d,$t0
+	add	$e,$f
+	xor	`4*(($j+13)%16)`(%rsp),$xi
+	rol	\$30,$b
+	add	$t0,$f
+	rol	\$1,$xi
+___
+$code.=<<___ if ($i<76);
+	mov	$xi,`4*($j%16)`(%rsp)
+___
+$code.=<<___ if ($i==79);
+	lea	$K($xi,$e),$f
+	mov	$c,$t0
+	mov	$a,$e
+	xor	$b,$t0
+	rol	\$5,$e
+	xor	$d,$t0
+	add	$e,$f
+	rol	\$30,$b
+	add	$t0,$f
+___
+}
+
+sub BODY_40_59 {
+my ($i,$a,$b,$c,$d,$e,$f)=@_;
+my $j=$i+1;
+$code.=<<___;
+	lea	0x8f1bbcdc($xi,$e),$f
+	mov	`4*($j%16)`(%rsp),$xi
+	mov	$b,$t0
+	mov	$b,$t1
+	xor	`4*(($j+2)%16)`(%rsp),$xi
+	mov	$a,$e
+	and	$c,$t0
+	xor	`4*(($j+8)%16)`(%rsp),$xi
+	or	$c,$t1
+	rol	\$5,$e
+	xor	`4*(($j+13)%16)`(%rsp),$xi
+	and	$d,$t1
+	add	$e,$f
+	rol	\$1,$xi
+	or	$t1,$t0
+	rol	\$30,$b
+	mov	$xi,`4*($j%16)`(%rsp)
+	add	$t0,$f
+___
+}
+
+$code=".text\n";
+
+&PROLOGUE("sha1_block_data_order");
+$code.=".align	4\n.Lloop:\n";
+for($i=0;$i<20;$i++)	{ &BODY_00_19($i,@V); unshift(@V,pop(@V)); }
+for(;$i<40;$i++)	{ &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
+for(;$i<60;$i++)	{ &BODY_40_59($i,@V); unshift(@V,pop(@V)); }
+for(;$i<80;$i++)	{ &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
+$code.=<<___;
+	add	0($ctx),$E
+	add	4($ctx),$T
+	add	8($ctx),$A
+	add	12($ctx),$B
+	add	16($ctx),$C
+	mov	$E,0($ctx)
+	mov	$T,4($ctx)
+	mov	$A,8($ctx)
+	mov	$B,12($ctx)
+	mov	$C,16($ctx)
+
+	xchg	$E,$A	# mov	$E,$A
+	xchg	$T,$B	# mov	$T,$B
+	xchg	$E,$C	# mov	$A,$C
+	xchg	$T,$D	# mov	$B,$D
+			# mov	$C,$E
+	lea	`16*4`($inp),$inp
+	sub	\$1,$num
+	jnz	.Lloop
+___
+&EPILOGUE("sha1_block_data_order");
+$code.=<<___;
+.asciz	"SHA1 block transform 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($context),%rax	# pull context->Rsp
+
+	lea	.Lepilogue(%rip),%r10
+	cmp	%r10,%rbx		# context->Rip>=.Lepilogue
+	jae	.Lin_prologue
+
+	mov	`16*4`(%rax),%rax	# pull saved stack pointer
+	lea	24(%rax),%rax
+
+	mov	-8(%rax),%rbx
+	mov	-16(%rax),%rbp
+	mov	-24(%rax),%r12
+	mov	%rbx,144($context)	# restore context->Rbx
+	mov	%rbp,160($context)	# restore context->Rbp
+	mov	%r12,216($context)	# restore context->R12
+
+.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	$disp,%rsi
+	xor	%rcx,%rcx		# arg1, UNW_FLAG_NHANDLER
+	mov	8(%rsi),%rdx		# arg2, disp->ImageBase
+	mov	0(%rsi),%r8		# arg3, disp->ControlPc
+	mov	16(%rsi),%r9		# arg4, disp->FunctionEntry
+	mov	40(%rsi),%r10		# disp->ContextRecord
+	lea	56(%rsi),%r11		# &disp->HandlerData
+	lea	24(%rsi),%r12		# &disp->EstablisherFrame
+	mov	%r10,32(%rsp)		# arg5
+	mov	%r11,40(%rsp)		# arg6
+	mov	%r12,48(%rsp)		# arg7
+	mov	%rcx,56(%rsp)		# arg8, (NULL)
+	call	*__imp_RtlVirtualUnwind(%rip)
+
+	mov	\$1,%eax		# ExceptionContinueSearch
+	add	\$64,%rsp
+	popfq
+	pop	%r15
+	pop	%r14
+	pop	%r13
+	pop	%r12
+	pop	%rbp
+	pop	%rbx
+	pop	%rdi
+	pop	%rsi
+	ret
+.size	se_handler,.-se_handler
+
+.section	.pdata
+.align	4
+	.rva	.LSEH_begin_sha1_block_data_order
+	.rva	.LSEH_end_sha1_block_data_order
+	.rva	.LSEH_info_sha1_block_data_order
+
+.section	.xdata
+.align	8
+.LSEH_info_sha1_block_data_order:
+	.byte	9,0,0,0
+	.rva	se_handler
+___
+}
+
+####################################################################
+
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
+print $code;
+close STDOUT;