# 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
+# implementation:-) However! While 64-bit code does perform 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
#
# gcc 3.4 32-bit asm cycles/byte
# Opteron +45% +20% 6.8
-# Xeon +65% +0% 9.9
+# Xeon P4 +65% +0% 9.9
+# Core2 +60% +10% 7.0
-$output=shift;
+# August 2009.
+#
+# The code was revised to minimize code size and to maximize
+# "distance" between instructions producing input to 'lea'
+# instruction and the 'lea' instruction itself, which is essential
+# for Intel Atom core.
+
+$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";
$ctx="%rdi"; # 1st arg
$inp="%rsi"; # 2nd arg
$inp="%r9";
$num="%r10";
-$xi="%eax";
-$t0="%ebx";
-$t1="%ecx";
-$A="%edx";
-$B="%esi";
-$C="%edi";
-$D="%ebp";
-$E="%r11d";
-$T="%r12d";
+$t0="%eax";
+$t1="%ebx";
+$t2="%ecx";
+@xi=("%edx","%ebp");
+$A="%esi";
+$B="%edi";
+$C="%r11d";
+$D="%r12d";
+$E="%r13d";
-@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,%rax
- mov %rdi,$ctx # reassigned argument
- sub \$`8+16*4`,%rsp
- mov %rsi,$inp # reassigned argument
- and \$-64,%rsp
- mov %rdx,$num # reassigned argument
- mov %rax,`16*4`(%rsp)
-
- mov 0($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),%rsp
- pop %r12
- pop %rbp
- pop %rbx
- ret
-.size $func,.-$func
-___
-}
+@V=($A,$B,$C,$D,$E);
sub BODY_00_19 {
-my ($i,$a,$b,$c,$d,$e,$f,$host)=@_;
+my ($i,$a,$b,$c,$d,$e)=@_;
my $j=$i+1;
$code.=<<___ if ($i==0);
- mov `4*$i`($inp),$xi
- `"bswap $xi" if(!defined($host))`
- mov $xi,`4*$i`(%rsp)
+ mov `4*$i`($inp),$xi[0]
+ bswap $xi[0]
+ mov $xi[0],`4*$i`(%rsp)
___
$code.=<<___ if ($i<15);
- lea 0x5a827999($xi,$e),$f
mov $c,$t0
- mov `4*$j`($inp),$xi
- mov $a,$e
+ mov `4*$j`($inp),$xi[1]
+ mov $a,$t2
xor $d,$t0
- `"bswap $xi" if(!defined($host))`
- rol \$5,$e
+ bswap $xi[1]
+ rol \$5,$t2
+ lea 0x5a827999($xi[0],$e),$e
and $b,$t0
- mov $xi,`4*$j`(%rsp)
- add $e,$f
+ mov $xi[1],`4*$j`(%rsp)
+ add $t2,$e
xor $d,$t0
rol \$30,$b
- add $t0,$f
+ add $t0,$e
___
$code.=<<___ if ($i>=15);
- lea 0x5a827999($xi,$e),$f
- mov `4*($j%16)`(%rsp),$xi
+ mov `4*($j%16)`(%rsp),$xi[1]
mov $c,$t0
- mov $a,$e
- xor `4*(($j+2)%16)`(%rsp),$xi
+ mov $a,$t2
+ xor `4*(($j+2)%16)`(%rsp),$xi[1]
xor $d,$t0
- rol \$5,$e
- xor `4*(($j+8)%16)`(%rsp),$xi
+ rol \$5,$t2
+ xor `4*(($j+8)%16)`(%rsp),$xi[1]
and $b,$t0
- add $e,$f
- xor `4*(($j+13)%16)`(%rsp),$xi
+ lea 0x5a827999($xi[0],$e),$e
+ xor `4*(($j+13)%16)`(%rsp),$xi[1]
xor $d,$t0
+ rol \$1,$xi[1]
+ add $t2,$e
rol \$30,$b
- add $t0,$f
- rol \$1,$xi
- mov $xi,`4*($j%16)`(%rsp)
+ mov $xi[1],`4*($j%16)`(%rsp)
+ add $t0,$e
___
+unshift(@xi,pop(@xi));
}
sub BODY_20_39 {
-my ($i,$a,$b,$c,$d,$e,$f)=@_;
+my ($i,$a,$b,$c,$d,$e)=@_;
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 `4*($j%16)`(%rsp),$xi[1]
mov $c,$t0
- mov $a,$e
- xor `4*(($j+2)%16)`(%rsp),$xi
+ mov $a,$t2
+ xor `4*(($j+2)%16)`(%rsp),$xi[1]
xor $b,$t0
- rol \$5,$e
- xor `4*(($j+8)%16)`(%rsp),$xi
+ rol \$5,$t2
+ lea $K($xi[0],$e),$e
+ xor `4*(($j+8)%16)`(%rsp),$xi[1]
xor $d,$t0
- add $e,$f
- xor `4*(($j+13)%16)`(%rsp),$xi
+ add $t2,$e
+ xor `4*(($j+13)%16)`(%rsp),$xi[1]
rol \$30,$b
- add $t0,$f
- rol \$1,$xi
- mov $xi,`4*($j%16)`(%rsp)
+ add $t0,$e
+ rol \$1,$xi[1]
+___
+$code.=<<___ if ($i<76);
+ mov $xi[1],`4*($j%16)`(%rsp)
___
$code.=<<___ if ($i==79);
- lea $K($xi,$e),$f
mov $c,$t0
- mov $a,$e
+ mov $a,$t2
xor $b,$t0
- rol \$5,$e
+ lea $K($xi[0],$e),$e
+ rol \$5,$t2
xor $d,$t0
- add $e,$f
+ add $t2,$e
rol \$30,$b
- add $t0,$f
+ add $t0,$e
___
+unshift(@xi,pop(@xi));
}
sub BODY_40_59 {
-my ($i,$a,$b,$c,$d,$e,$f)=@_;
+my ($i,$a,$b,$c,$d,$e)=@_;
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
+ mov `4*($j%16)`(%rsp),$xi[1]
+ mov $c,$t0
+ mov $c,$t1
+ xor `4*(($j+2)%16)`(%rsp),$xi[1]
+ and $d,$t0
+ mov $a,$t2
+ xor `4*(($j+8)%16)`(%rsp),$xi[1]
+ xor $d,$t1
+ lea 0x8f1bbcdc($xi[0],$e),$e
+ rol \$5,$t2
+ xor `4*(($j+13)%16)`(%rsp),$xi[1]
+ add $t0,$e
+ and $b,$t1
+ rol \$1,$xi[1]
+ add $t1,$e
rol \$30,$b
- mov $xi,`4*($j%16)`(%rsp)
- add $t0,$f
+ mov $xi[1],`4*($j%16)`(%rsp)
+ add $t2,$e
___
+unshift(@xi,pop(@xi));
}
-$code=".text\n";
+$code.=<<___;
+.section .note.GNU-stack,"",\@progbits
+.text
+
+.globl sha1_block_data_order
+.type sha1_block_data_order,\@function,3
+.align 16
+sha1_block_data_order:
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ 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),$E
-&PROLOGUE("sha1_block_asm_data_order");
-$code.=".align 4\n.Lloop:\n";
+.align 4
+.Lloop:
+___
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
+ add 0($ctx),$A
+ add 4($ctx),$B
+ add 8($ctx),$C
+ add 12($ctx),$D
+ add 16($ctx),$E
+ mov $A,0($ctx)
+ mov $B,4($ctx)
+ mov $C,8($ctx)
+ mov $D,12($ctx)
+ mov $E,16($ctx)
+
sub \$1,$num
+ lea `16*4`($inp),$inp
jnz .Lloop
+
+ mov `16*4`(%rsp),%rsi
+ mov (%rsi),%r13
+ mov 8(%rsi),%r12
+ mov 16(%rsi),%rbp
+ mov 24(%rsi),%rbx
+ lea 32(%rsi),%rsp
+.Lepilogue:
+ ret
+.size sha1_block_data_order,.-sha1_block_data_order
+
+.asciz "SHA1 block transform for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
+.align 16
___
-&EPILOGUE("sha1_block_asm_data_order");
+
+# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
+# CONTEXT *context,DISPATCHER_CONTEXT *disp)
+if ($win64) {
+$rec="%rcx";
+$frame="%rdx";
+$context="%r8";
+$disp="%r9";
+
$code.=<<___;
-.asciz "SHA1 block transform for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
+.extern __imp_RtlVirtualUnwind
+.type se_handler,\@abi-omnipotent
+.align 16
+se_handler:
+ push %rsi
+ push %rdi
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ pushfq
+ sub \$64,%rsp
+
+ mov 120($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 32(%rax),%rax
+
+ mov -8(%rax),%rbx
+ mov -16(%rax),%rbp
+ mov -24(%rax),%r12
+ mov -32(%rax),%r13
+ 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
+
+.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
___
+}
####################################################################
projects / openssl.git / blobdiff