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提交 9250a306 编写于 作者: A Andy Polyakov
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sha/asm/sha1-armv4-large.pl: add NEON and ARMv8 code paths. 

sha/asm/sha256-armv4.pl: add ARMv8 code path.
上级 4afa9f03
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crypto/sha/asm/sha1-armv4-large.pl
浏览文件 @ 9250a306
#!/usr/bin/env perl #!/usr/bin/env perl
# ==================================================================== # ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and # project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further # CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/. # details see http://www.openssl.org/~appro/cryptogams/.
...@@ -52,6 +52,20 @@ ...@@ -52,6 +52,20 @@
# Profiler-assisted and platform-specific optimization resulted in 10% # Profiler-assisted and platform-specific optimization resulted in 10%
# improvement on Cortex A8 core and 12.2 cycles per byte. # improvement on Cortex A8 core and 12.2 cycles per byte.
# September 2013.
#
# Add NEON implementation (see sha1-586.pl for background info). On
# Cortex A8 it was measured to process one byte in 6.7 cycles or >80%
# faster than integer-only code. Because [fully unrolled] NEON code
# is ~2.5x larger and there are some redundant instructions executed
# when processing last block, improvement is not as big for smallest
# blocks, only ~30%. Snapdragon S4 is a tad faster, 6.4 cycles per
# byte, which is also >80% faster than integer-only code.
# May 2014.
#
# Add ARMv8 code path performing at 2.35 cpb on Apple A7.
while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
open STDOUT,">$output"; open STDOUT,">$output";
...@@ -153,12 +167,22 @@ $code=<<___; ...@@ -153,12 +167,22 @@ $code=<<___;
#include "arm_arch.h" #include "arm_arch.h"
.text .text
.code 32
.global sha1_block_data_order .global sha1_block_data_order
.type sha1_block_data_order,%function .type sha1_block_data_order,%function
.align 2 .align 5
sha1_block_data_order: sha1_block_data_order:
#if __ARM_ARCH__>=7
sub r3,pc,#8 @ sha1_block_data_order
ldr r12,.LOPENSSL_armcap
ldr r12,[r3,r12] @ OPENSSL_armcap_P
tst r12,#8
bne .LARMv8
tst r12,#1
bne .LNEON
#endif
stmdb sp!,{r4-r12,lr} stmdb sp!,{r4-r12,lr}
add $len,$inp,$len,lsl#6 @ $len to point at the end of $inp add $len,$inp,$len,lsl#6 @ $len to point at the end of $inp
ldmia $ctx,{$a,$b,$c,$d,$e} ldmia $ctx,{$a,$b,$c,$d,$e}
...@@ -233,16 +257,416 @@ $code.=<<___; ...@@ -233,16 +257,416 @@ $code.=<<___;
moveq pc,lr @ be binary compatible with V4, yet moveq pc,lr @ be binary compatible with V4, yet
bx lr @ interoperable with Thumb ISA:-) bx lr @ interoperable with Thumb ISA:-)
#endif #endif
.align 2 .size sha1_block_data_order,.-sha1_block_data_order
.align 5
.LK_00_19: .word 0x5a827999 .LK_00_19: .word 0x5a827999
.LK_20_39: .word 0x6ed9eba1 .LK_20_39: .word 0x6ed9eba1
.LK_40_59: .word 0x8f1bbcdc .LK_40_59: .word 0x8f1bbcdc
.LK_60_79: .word 0xca62c1d6 .LK_60_79: .word 0xca62c1d6
.size sha1_block_data_order,.-sha1_block_data_order .LOPENSSL_armcap:
.asciz "SHA1 block transform for ARMv4, CRYPTOGAMS by <appro\@openssl.org>" .word OPENSSL_armcap_P-sha1_block_data_order
.align 2 .asciz "SHA1 block transform for ARMv4/NEON/ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
.align 5
___
#####################################################################
# NEON stuff
#
{{{
my @V=($a,$b,$c,$d,$e);
my ($K_XX_XX,$Ki,$t0,$t1,$Xfer,$saved_sp)=map("r$_",(8..12,14));
my $Xi=4;
my @X=map("q$_",(8..11,0..3));
my @Tx=("q12","q13");
my ($K,$zero)=("q14","q15");
my $j=0;
sub AUTOLOAD() # thunk [simplified] x86-style perlasm
{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://; $opcode =~ s/_/\./;
my $arg = pop;
$arg = "#$arg" if ($arg*1 eq $arg);
$code .= "\t$opcode\t".join(',',@_,$arg)."\n";
}
sub body_00_19 () {
(
'($a,$b,$c,$d,$e)=@V;'. # '$code.="@ $j\n";'.
'&bic ($t0,$d,$b)',
'&add ($e,$e,$Ki)', # e+=X[i]+K
'&and ($t1,$c,$b)',
'&ldr ($Ki,sprintf "[sp,#%d]",4*(($j+1)&15))',
'&add ($e,$e,$a,"ror#27")', # e+=ROR(A,27)
'&eor ($t1,$t1,$t0)', # F_00_19
'&mov ($b,$b,"ror#2")', # b=ROR(b,2)
'&add ($e,$e,$t1);'. # e+=F_00_19
'$j++; unshift(@V,pop(@V));'
)
}
sub body_20_39 () {
(
'($a,$b,$c,$d,$e)=@V;'. # '$code.="@ $j\n";'.
'&eor ($t0,$b,$d)',
'&add ($e,$e,$Ki)', # e+=X[i]+K
'&ldr ($Ki,sprintf "[sp,#%d]",4*(($j+1)&15)) if ($j<79)',
'&eor ($t1,$t0,$c)', # F_20_39
'&add ($e,$e,$a,"ror#27")', # e+=ROR(A,27)
'&mov ($b,$b,"ror#2")', # b=ROR(b,2)
'&add ($e,$e,$t1);'. # e+=F_20_39
'$j++; unshift(@V,pop(@V));'
)
}
sub body_40_59 () {
(
'($a,$b,$c,$d,$e)=@V;'. # '$code.="@ $j\n";'.
'&add ($e,$e,$Ki)', # e+=X[i]+K
'&and ($t0,$c,$d)',
'&ldr ($Ki,sprintf "[sp,#%d]",4*(($j+1)&15))',
'&add ($e,$e,$a,"ror#27")', # e+=ROR(A,27)
'&eor ($t1,$c,$d)',
'&add ($e,$e,$t0)',
'&and ($t1,$t1,$b)',
'&mov ($b,$b,"ror#2")', # b=ROR(b,2)
'&add ($e,$e,$t1);'. # e+=F_40_59
'$j++; unshift(@V,pop(@V));'
)
}
sub Xupdate_16_31 ()
{ use integer;
my $body = shift;
my @insns = (&$body,&$body,&$body,&$body);
my ($a,$b,$c,$d,$e);
&vext_8 (@X[0],@X[-4&7],@X[-3&7],8); # compose "X[-14]" in "X[0]"
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
&vadd_i32 (@Tx[1],@X[-1&7],$K);
eval(shift(@insns));
&vld1_32 ("{$K\[]}","[$K_XX_XX,:32]!") if ($Xi%5==0);
eval(shift(@insns));
&vext_8 (@Tx[0],@X[-1&7],$zero,4); # "X[-3]", 3 words
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
&veor (@X[0],@X[0],@X[-4&7]); # "X[0]"^="X[-16]"
eval(shift(@insns));
eval(shift(@insns));
&veor (@Tx[0],@Tx[0],@X[-2&7]); # "X[-3]"^"X[-8]"
eval(shift(@insns));
eval(shift(@insns));
&veor (@Tx[0],@Tx[0],@X[0]); # "X[0]"^="X[-3]"^"X[-8]
eval(shift(@insns));
eval(shift(@insns));
&vst1_32 ("{@Tx[1]}","[$Xfer,:128]!"); # X[]+K xfer
&sub ($Xfer,$Xfer,64) if ($Xi%4==0);
eval(shift(@insns));
eval(shift(@insns));
&vext_8 (@Tx[1],$zero,@Tx[0],4); # "X[0]"<<96, extract one dword
eval(shift(@insns));
eval(shift(@insns));
&vadd_i32 (@X[0],@Tx[0],@Tx[0]);
eval(shift(@insns));
eval(shift(@insns));
&vsri_32 (@X[0],@Tx[0],31); # "X[0]"<<<=1
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
&vshr_u32 (@Tx[0],@Tx[1],30);
eval(shift(@insns));
eval(shift(@insns));
&vshl_u32 (@Tx[1],@Tx[1],2);
eval(shift(@insns));
eval(shift(@insns));
&veor (@X[0],@X[0],@Tx[0]);
eval(shift(@insns));
eval(shift(@insns));
&veor (@X[0],@X[0],@Tx[1]); # "X[0]"^=("X[0]">>96)<<<2
foreach (@insns) { eval; } # remaining instructions [if any]
$Xi++; push(@X,shift(@X)); # "rotate" X[]
}
sub Xupdate_32_79 ()
{ use integer;
my $body = shift;
my @insns = (&$body,&$body,&$body,&$body);
my ($a,$b,$c,$d,$e);
&vext_8 (@Tx[0],@X[-2&7],@X[-1&7],8); # compose "X[-6]"
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
&veor (@X[0],@X[0],@X[-4&7]); # "X[0]"="X[-32]"^"X[-16]"
eval(shift(@insns));
eval(shift(@insns));
&veor (@X[0],@X[0],@X[-7&7]); # "X[0]"^="X[-28]"
eval(shift(@insns));
eval(shift(@insns));
&vadd_i32 (@Tx[1],@X[-1&7],$K);
eval(shift(@insns));
&vld1_32 ("{$K\[]}","[$K_XX_XX,:32]!") if ($Xi%5==0);
eval(shift(@insns));
&veor (@Tx[0],@Tx[0],@X[0]); # "X[-6]"^="X[0]"
eval(shift(@insns));
eval(shift(@insns));
&vshr_u32 (@X[0],@Tx[0],30);
eval(shift(@insns));
eval(shift(@insns));
&vst1_32 ("{@Tx[1]}","[$Xfer,:128]!"); # X[]+K xfer
&sub ($Xfer,$Xfer,64) if ($Xi%4==0);
eval(shift(@insns));
eval(shift(@insns));
&vsli_32 (@X[0],@Tx[0],2); # "X[0]"="X[-6]"<<<2
foreach (@insns) { eval; } # remaining instructions [if any]
$Xi++; push(@X,shift(@X)); # "rotate" X[]
}
sub Xuplast_80 ()
{ use integer;
my $body = shift;
my @insns = (&$body,&$body,&$body,&$body);
my ($a,$b,$c,$d,$e);
&vadd_i32 (@Tx[1],@X[-1&7],$K);
eval(shift(@insns));
eval(shift(@insns));
&vst1_32 ("{@Tx[1]}","[$Xfer,:128]!");
&sub ($Xfer,$Xfer,64);
&teq ($inp,$len);
&sub ($K_XX_XX,$K_XX_XX,16); # rewind $K_XX_XX
&subeq ($inp,$inp,64); # reload last block to avoid SEGV
&vld1_8 ("{@X[-4&7]-@X[-3&7]}","[$inp]!");
eval(shift(@insns));
eval(shift(@insns));
&vld1_8 ("{@X[-2&7]-@X[-1&7]}","[$inp]!");
eval(shift(@insns));
eval(shift(@insns));
&vld1_32 ("{$K\[]}","[$K_XX_XX,:32]!"); # load K_00_19
eval(shift(@insns));
eval(shift(@insns));
&vrev32_8 (@X[-4&7],@X[-4&7]);
foreach (@insns) { eval; } # remaining instructions
$Xi=0;
}
sub Xloop()
{ use integer;
my $body = shift;
my @insns = (&$body,&$body,&$body,&$body);
my ($a,$b,$c,$d,$e);
&vrev32_8 (@X[($Xi-3)&7],@X[($Xi-3)&7]);
eval(shift(@insns));
eval(shift(@insns));
&vadd_i32 (@X[$Xi&7],@X[($Xi-4)&7],$K);
eval(shift(@insns));
eval(shift(@insns));
&vst1_32 ("{@X[$Xi&7]}","[$Xfer,:128]!");# X[]+K xfer to IALU
foreach (@insns) { eval; }
$Xi++;
}
$code.=<<___;
#if __ARM_ARCH__>=7
.fpu neon
.type sha1_block_data_order_neon,%function
.align 4
sha1_block_data_order_neon:
.LNEON:
stmdb sp!,{r4-r12,lr}
add $len,$inp,$len,lsl#6 @ $len to point at the end of $inp
@ dmb @ errata #451034 on early Cortex A8
@ vstmdb sp!,{d8-d15} @ ABI specification says so
mov $saved_sp,sp
sub sp,sp,#64 @ alloca
adr $K_XX_XX,.LK_00_19
bic sp,sp,#15 @ align for 128-bit stores
ldmia $ctx,{$a,$b,$c,$d,$e} @ load context
mov $Xfer,sp
vld1.8 {@X[-4&7]-@X[-3&7]},[$inp]! @ handles unaligned
veor $zero,$zero,$zero
vld1.8 {@X[-2&7]-@X[-1&7]},[$inp]!
vld1.32 {${K}\[]},[$K_XX_XX,:32]! @ load K_00_19
vrev32.8 @X[-4&7],@X[-4&7] @ yes, even on
vrev32.8 @X[-3&7],@X[-3&7] @ big-endian...
vrev32.8 @X[-2&7],@X[-2&7]
vadd.i32 @X[0],@X[-4&7],$K
vrev32.8 @X[-1&7],@X[-1&7]
vadd.i32 @X[1],@X[-3&7],$K
vst1.32 {@X[0]},[$Xfer,:128]!
vadd.i32 @X[2],@X[-2&7],$K
vst1.32 {@X[1]},[$Xfer,:128]!
vst1.32 {@X[2]},[$Xfer,:128]!
ldr $Ki,[sp] @ big RAW stall
.Loop_neon:
___
&Xupdate_16_31(\&body_00_19);
&Xupdate_16_31(\&body_00_19);
&Xupdate_16_31(\&body_00_19);
&Xupdate_16_31(\&body_00_19);
&Xupdate_32_79(\&body_00_19);
&Xupdate_32_79(\&body_20_39);
&Xupdate_32_79(\&body_20_39);
&Xupdate_32_79(\&body_20_39);
&Xupdate_32_79(\&body_20_39);
&Xupdate_32_79(\&body_20_39);
&Xupdate_32_79(\&body_40_59);
&Xupdate_32_79(\&body_40_59);
&Xupdate_32_79(\&body_40_59);
&Xupdate_32_79(\&body_40_59);
&Xupdate_32_79(\&body_40_59);
&Xupdate_32_79(\&body_20_39);
&Xuplast_80(\&body_20_39);
&Xloop(\&body_20_39);
&Xloop(\&body_20_39);
&Xloop(\&body_20_39);
$code.=<<___;
ldmia $ctx,{$Ki,$t0,$t1,$Xfer} @ accumulate context
add $a,$a,$Ki
ldr $Ki,[$ctx,#16]
add $b,$b,$t0
add $c,$c,$t1
add $d,$d,$Xfer
moveq sp,$saved_sp
add $e,$e,$Ki
ldrne $Ki,[sp]
stmia $ctx,{$a,$b,$c,$d,$e}
addne $Xfer,sp,#3*16
bne .Loop_neon
@ vldmia sp!,{d8-d15}
ldmia sp!,{r4-r12,pc}
.size sha1_block_data_order_neon,.-sha1_block_data_order_neon
#endif
___
}}}
#####################################################################
# ARMv8 stuff
#
{{{
my ($ABCD,$E,$E0,$E1)=map("q$_",(0..3));
my @MSG=map("q$_",(4..7));
my @Kxx=map("q$_",(8..11));
my ($W0,$W1,$ABCD_SAVE)=map("q$_",(12..14));
$code.=<<___;
#if __ARM_ARCH__>=7
.type sha1_block_data_order_armv8,%function
.align 5
sha1_block_data_order_armv8:
.LARMv8:
vstmdb sp!,{d8-d15} @ ABI specification says so
veor $E,$E,$E
adr r3,.LK_00_19
vld1.32 {$ABCD},[$ctx]!
vld1.32 {$E\[0]},[$ctx]
sub $ctx,$ctx,#16
vld1.32 {@Kxx[0]\[]},[r3,:32]!
vld1.32 {@Kxx[1]\[]},[r3,:32]!
vld1.32 {@Kxx[2]\[]},[r3,:32]!
vld1.32 {@Kxx[3]\[]},[r3,:32]
.Loop_v8:
vld1.8 {@MSG[0]-@MSG[1]},[$inp]!
vld1.8 {@MSG[2]-@MSG[3]},[$inp]!
vrev32.8 @MSG[0],@MSG[0]
vrev32.8 @MSG[1],@MSG[1]
vadd.i32 $W0,@Kxx[0],@MSG[0]
vrev32.8 @MSG[2],@MSG[2]
vmov $ABCD_SAVE,$ABCD @ offload
subs $len,$len,#1
vadd.i32 $W1,@Kxx[0],@MSG[1]
vrev32.8 @MSG[3],@MSG[3]
sha1h $E1,$ABCD @ 0
sha1c $ABCD,$E,$W0
vadd.i32 $W0,@Kxx[$j],@MSG[2]
sha1su0 @MSG[0],@MSG[1],@MSG[2]
___
for ($j=0,$i=1;$i<20-3;$i++) {
my $f=("c","p","m","p")[$i/5];
$code.=<<___;
sha1h $E0,$ABCD @ $i
sha1$f $ABCD,$E1,$W1
vadd.i32 $W1,@Kxx[$j],@MSG[3]
sha1su1 @MSG[0],@MSG[3]
___
$code.=<<___ if ($i<20-4);
sha1su0 @MSG[1],@MSG[2],@MSG[3]
___ ___
($E0,$E1)=($E1,$E0); ($W0,$W1)=($W1,$W0);
push(@MSG,shift(@MSG)); $j++ if ((($i+3)%5)==0);
}
$code.=<<___;
sha1h $E0,$ABCD @ $i
sha1p $ABCD,$E1,$W1
vadd.i32 $W1,@Kxx[$j],@MSG[3]
sha1h $E1,$ABCD @ 18
sha1p $ABCD,$E0,$W0
sha1h $E0,$ABCD @ 19
sha1p $ABCD,$E1,$W1
vadd.i32 $E,$E,$E0
vadd.i32 $ABCD,$ABCD,$ABCD_SAVE
bne .Loop_v8
vst1.32 {$ABCD},[$ctx]!
vst1.32 {$E\[0]},[$ctx]
vldmia sp!,{d8-d15}
bx lr
.size sha1_block_data_order_armv8,.-sha1_block_data_order_armv8
#endif
___
}}}
$code.=<<___;
.comm OPENSSL_armcap_P,4,4
___
{ my %opcode = (
"sha1c" => 0xf2000c40, "sha1p" => 0xf2100c40,
"sha1m" => 0xf2200c40, "sha1su0" => 0xf2300c40,
"sha1h" => 0xf3b902c0, "sha1su1" => 0xf3ba0380 );
sub unsha1 {
my ($mnemonic,$arg)=@_;
$arg =~ m/q([0-9]+)(?:,\s*q([0-9]+))?,\s*q([0-9]+)/o
&&
sprintf ".long\t0x%08x\t@ %s %s",
$opcode{$mnemonic}|(($1&7)<<13)|(($1&8)<<19)
|(($2&7)<<17)|(($2&8)<<4)
|(($3&7)<<1) |(($3&8)<<2),
$mnemonic,$arg;
}
}
foreach (split($/,$code)) {
s/{q([0-9]+)\[\]}/sprintf "{d%d[],d%d[]}",2*$1,2*$1+1/eo or
s/{q([0-9]+)\[0\]}/sprintf "{d%d[0]}",2*$1/eo;
s/\b(sha1\w+)\s+(q.*)/unsha1($1,$2)/geo;
s/\bbx\s+lr\b/.word\t0xe12fff1e/o; # make it possible to compile with -march=armv4
print $_,$/;
}
$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4
print $code;
close STDOUT; # enforce flush close STDOUT; # enforce flush
crypto/sha/asm/sha256-armv4.pl
浏览文件 @ 9250a306
...@@ -31,6 +31,10 @@ ...@@ -31,6 +31,10 @@
# code (meaning that latter performs sub-optimally, nothing was done # code (meaning that latter performs sub-optimally, nothing was done
# about it). # about it).
# May 2014.
#
# Add ARMv8 code path performing at 2.0 cpb on Apple A7.
while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
open STDOUT,">$output"; open STDOUT,">$output";
...@@ -185,6 +189,8 @@ sha256_block_data_order: ...@@ -185,6 +189,8 @@ sha256_block_data_order:
#if __ARM_ARCH__>=7 #if __ARM_ARCH__>=7
ldr r12,.LOPENSSL_armcap ldr r12,.LOPENSSL_armcap
ldr r12,[r3,r12] @ OPENSSL_armcap_P ldr r12,[r3,r12] @ OPENSSL_armcap_P
tst r12,#8
bne .LARMv8
tst r12,#1 tst r12,#1
bne .LNEON bne .LNEON
#endif #endif
...@@ -241,6 +247,7 @@ $code.=<<___; ...@@ -241,6 +247,7 @@ $code.=<<___;
moveq pc,lr @ be binary compatible with V4, yet moveq pc,lr @ be binary compatible with V4, yet
bx lr @ interoperable with Thumb ISA:-) bx lr @ interoperable with Thumb ISA:-)
#endif #endif
.size sha256_block_data_order,.-sha256_block_data_order
___ ___
###################################################################### ######################################################################
# NEON stuff # NEON stuff
...@@ -418,7 +425,10 @@ sub body_00_15 () { ...@@ -418,7 +425,10 @@ sub body_00_15 () {
$code.=<<___; $code.=<<___;
#if __ARM_ARCH__>=7 #if __ARM_ARCH__>=7
.fpu neon .fpu neon
.type sha256_block_data_order_neon,%function
.align 4 .align 4
sha256_block_data_order_neon:
.LNEON: .LNEON:
stmdb sp!,{r4-r12,lr} stmdb sp!,{r4-r12,lr}
...@@ -521,17 +531,120 @@ $code.=<<___; ...@@ -521,17 +531,120 @@ $code.=<<___;
bne .L_00_48 bne .L_00_48
ldmia sp!,{r4-r12,pc} ldmia sp!,{r4-r12,pc}
.size sha256_block_data_order_neon,.-sha256_block_data_order_neon
#endif
___
}}}
######################################################################
# ARMv8 stuff
#
{{{
my ($ABCD,$EFGH,$abcd)=map("q$_",(0..2));
my @MSG=map("q$_",(8..11));
my ($W0,$W1,$ABCD_SAVE,$EFGH_SAVE)=map("q$_",(12..15));
my $Ktbl="r3";
$code.=<<___;
#if __ARM_ARCH__>=7
.type sha256_block_data_order_armv8,%function
.align 5
sha256_block_data_order_armv8:
.LARMv8:
vld1.32 {$ABCD,$EFGH},[$ctx]
sub $Ktbl,r3,#sha256_block_data_order-K256
.Loop_v8:
vld1.8 {@MSG[0]-@MSG[1]},[$inp]!
vld1.8 {@MSG[2]-@MSG[3]},[$inp]!
vld1.32 {$W0},[$Ktbl]!
vrev32.8 @MSG[0],@MSG[0]
vrev32.8 @MSG[1],@MSG[1]
vrev32.8 @MSG[2],@MSG[2]
vrev32.8 @MSG[3],@MSG[3]
vmov $ABCD_SAVE,$ABCD @ offload
vmov $EFGH_SAVE,$EFGH
teq $inp,$len
___
for($i=0;$i<12;$i++) {
$code.=<<___;
vld1.32 {$W1},[$Ktbl]!
vadd.i32 $W0,$W0,@MSG[0]
sha256su0 @MSG[0],@MSG[1]
vmov $abcd,$ABCD
sha256h $ABCD,$EFGH,$W0
sha256h2 $EFGH,$abcd,$W0
sha256su1 @MSG[0],@MSG[2],@MSG[3]
___
($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG));
}
$code.=<<___;
vld1.32 {$W1},[$Ktbl]!
vadd.i32 $W0,$W0,@MSG[0]
vmov $abcd,$ABCD
sha256h $ABCD,$EFGH,$W0
sha256h2 $EFGH,$abcd,$W0
vld1.32 {$W0},[$Ktbl]!
vadd.i32 $W1,$W1,@MSG[1]
vmov $abcd,$ABCD
sha256h $ABCD,$EFGH,$W1
sha256h2 $EFGH,$abcd,$W1
vld1.32 {$W1},[$Ktbl]
vadd.i32 $W0,$W0,@MSG[2]
sub $Ktbl,$Ktbl,#256-16 @ rewind
vmov $abcd,$ABCD
sha256h $ABCD,$EFGH,$W0
sha256h2 $EFGH,$abcd,$W0
vadd.i32 $W1,$W1,@MSG[3]
vmov $abcd,$ABCD
sha256h $ABCD,$EFGH,$W1
sha256h2 $EFGH,$abcd,$W1
vadd.i32 $ABCD,$ABCD,$ABCD_SAVE
vadd.i32 $EFGH,$EFGH,$EFGH_SAVE
bne .Loop_v8
vst1.32 {$ABCD,$EFGH},[$ctx]
bx lr
.size sha256_block_data_order_armv8,.-sha256_block_data_order_armv8
#endif #endif
___ ___
}}} }}}
$code.=<<___; $code.=<<___;
.size sha256_block_data_order,.-sha256_block_data_order .asciz "SHA256 block transform for ARMv4/NEON/ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
.asciz "SHA256 block transform for ARMv4/NEON, CRYPTOGAMS by <appro\@openssl.org>"
.align 2 .align 2
.comm OPENSSL_armcap_P,4,4 .comm OPENSSL_armcap_P,4,4
___ ___
$code =~ s/\`([^\`]*)\`/eval $1/gem; { my %opcode = (
$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 "sha256h" => 0xf3000c40, "sha256h2" => 0xf3100c40,
print $code; "sha256su0" => 0xf3ba03c0, "sha256su1" => 0xf3200c40 );
sub unsha256 {
my ($mnemonic,$arg)=@_;
$arg =~ m/q([0-9]+)(?:,\s*q([0-9]+))?,\s*q([0-9]+)/o
&&
sprintf ".long\t0x%08x\t@ %s %s",
$opcode{$mnemonic}|(($1&7)<<13)|(($1&8)<<19)
|(($2&7)<<17)|(($2&8)<<4)
|(($3&7)<<1) |(($3&8)<<2),
$mnemonic,$arg;
}
}
foreach (split($/,$code)) {
s/\`([^\`]*)\`/eval $1/geo;
s/\b(sha256\w+)\s+(q.*)/unsha256($1,$2)/geo;
s/\bbx\s+lr\b/.word\t0xe12fff1e/go; # make it possible to compile with -march=armv4
print $_,"\n";
}
close STDOUT; # enforce flush close STDOUT; # enforce flush
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