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authorParménides GV <parmegv@sdf.org>2014-09-26 09:46:26 +0200
committerParménides GV <parmegv@sdf.org>2014-09-26 09:46:26 +0200
commit394451dbae3e71282611058e00b5fd16c865f147 (patch)
tree17b71034d9350a2848603f5edf0a8b13025909be /app/openssl/crypto/sha/asm/sha256-armv4.pl
parent644fd02cf8da95b0b5a99fb9f2142628dd27f7c2 (diff)
Revert "Updated native subprojects from ics-openvpn."
This reverts commit d0e7ba3029b2fd42582413aa95773fe7dbdede90. I'll postpone this work for the next cycle, it's not trivial because it doesn't link properly.
Diffstat (limited to 'app/openssl/crypto/sha/asm/sha256-armv4.pl')
-rw-r--r--app/openssl/crypto/sha/asm/sha256-armv4.pl585
1 files changed, 70 insertions, 515 deletions
diff --git a/app/openssl/crypto/sha/asm/sha256-armv4.pl b/app/openssl/crypto/sha/asm/sha256-armv4.pl
index 505ca8f3..9c84e8d9 100644
--- a/app/openssl/crypto/sha/asm/sha256-armv4.pl
+++ b/app/openssl/crypto/sha/asm/sha256-armv4.pl
@@ -1,7 +1,7 @@
#!/usr/bin/env perl
# ====================================================================
-# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
+# 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/.
@@ -21,27 +21,15 @@
# February 2011.
#
# Profiler-assisted and platform-specific optimization resulted in 16%
-# improvement on Cortex A8 core and ~15.4 cycles per processed byte.
-
-# September 2013.
-#
-# Add NEON implementation. On Cortex A8 it was measured to process one
-# byte in 12.5 cycles or 23% faster than integer-only code. Snapdragon
-# S4 does it in 12.5 cycles too, but it's 50% faster than integer-only
-# code (meaning that latter performs sub-optimally, nothing was done
-# about it).
-
-# May 2014.
-#
-# Add ARMv8 code path performing at 2.0 cpb on Apple A7.
+# improvement on Cortex A8 core and ~17 cycles per processed byte.
while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
open STDOUT,">$output";
$ctx="r0"; $t0="r0";
-$inp="r1"; $t4="r1";
+$inp="r1"; $t3="r1";
$len="r2"; $t1="r2";
-$T1="r3"; $t3="r3";
+$T1="r3";
$A="r4";
$B="r5";
$C="r6";
@@ -64,88 +52,71 @@ my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
$code.=<<___ if ($i<16);
#if __ARM_ARCH__>=7
- @ ldr $t1,[$inp],#4 @ $i
-# if $i==15
- str $inp,[sp,#17*4] @ make room for $t4
-# endif
- eor $t0,$e,$e,ror#`$Sigma1[1]-$Sigma1[0]`
- add $a,$a,$t2 @ h+=Maj(a,b,c) from the past
- eor $t0,$t0,$e,ror#`$Sigma1[2]-$Sigma1[0]` @ Sigma1(e)
- rev $t1,$t1
+ ldr $T1,[$inp],#4
#else
- @ ldrb $t1,[$inp,#3] @ $i
- add $a,$a,$t2 @ h+=Maj(a,b,c) from the past
+ ldrb $T1,[$inp,#3] @ $i
ldrb $t2,[$inp,#2]
- ldrb $t0,[$inp,#1]
- orr $t1,$t1,$t2,lsl#8
- ldrb $t2,[$inp],#4
- orr $t1,$t1,$t0,lsl#16
-# if $i==15
- str $inp,[sp,#17*4] @ make room for $t4
-# endif
- eor $t0,$e,$e,ror#`$Sigma1[1]-$Sigma1[0]`
- orr $t1,$t1,$t2,lsl#24
- eor $t0,$t0,$e,ror#`$Sigma1[2]-$Sigma1[0]` @ Sigma1(e)
+ ldrb $t1,[$inp,#1]
+ ldrb $t0,[$inp],#4
+ orr $T1,$T1,$t2,lsl#8
+ orr $T1,$T1,$t1,lsl#16
+ orr $T1,$T1,$t0,lsl#24
#endif
___
$code.=<<___;
+ mov $t0,$e,ror#$Sigma1[0]
ldr $t2,[$Ktbl],#4 @ *K256++
- add $h,$h,$t1 @ h+=X[i]
- str $t1,[sp,#`$i%16`*4]
+ eor $t0,$t0,$e,ror#$Sigma1[1]
eor $t1,$f,$g
- add $h,$h,$t0,ror#$Sigma1[0] @ h+=Sigma1(e)
+#if $i>=16
+ add $T1,$T1,$t3 @ from BODY_16_xx
+#elif __ARM_ARCH__>=7 && defined(__ARMEL__)
+ rev $T1,$T1
+#endif
+#if $i==15
+ str $inp,[sp,#17*4] @ leave room for $t3
+#endif
+ eor $t0,$t0,$e,ror#$Sigma1[2] @ Sigma1(e)
and $t1,$t1,$e
- add $h,$h,$t2 @ h+=K256[i]
+ str $T1,[sp,#`$i%16`*4]
+ add $T1,$T1,$t0
eor $t1,$t1,$g @ Ch(e,f,g)
- eor $t0,$a,$a,ror#`$Sigma0[1]-$Sigma0[0]`
- add $h,$h,$t1 @ h+=Ch(e,f,g)
-#if $i==31
- and $t2,$t2,#0xff
- cmp $t2,#0xf2 @ done?
+ add $T1,$T1,$h
+ mov $h,$a,ror#$Sigma0[0]
+ add $T1,$T1,$t1
+ eor $h,$h,$a,ror#$Sigma0[1]
+ add $T1,$T1,$t2
+ eor $h,$h,$a,ror#$Sigma0[2] @ Sigma0(a)
+#if $i>=15
+ ldr $t3,[sp,#`($i+2)%16`*4] @ from BODY_16_xx
#endif
-#if $i<15
-# if __ARM_ARCH__>=7
- ldr $t1,[$inp],#4 @ prefetch
-# else
- ldrb $t1,[$inp,#3]
-# endif
- eor $t2,$a,$b @ a^b, b^c in next round
-#else
- ldr $t1,[sp,#`($i+2)%16`*4] @ from future BODY_16_xx
- eor $t2,$a,$b @ a^b, b^c in next round
- ldr $t4,[sp,#`($i+15)%16`*4] @ from future BODY_16_xx
-#endif
- eor $t0,$t0,$a,ror#`$Sigma0[2]-$Sigma0[0]` @ Sigma0(a)
- and $t3,$t3,$t2 @ (b^c)&=(a^b)
- add $d,$d,$h @ d+=h
- eor $t3,$t3,$b @ Maj(a,b,c)
- add $h,$h,$t0,ror#$Sigma0[0] @ h+=Sigma0(a)
- @ add $h,$h,$t3 @ h+=Maj(a,b,c)
+ orr $t0,$a,$b
+ and $t1,$a,$b
+ and $t0,$t0,$c
+ add $h,$h,$T1
+ orr $t0,$t0,$t1 @ Maj(a,b,c)
+ add $d,$d,$T1
+ add $h,$h,$t0
___
- ($t2,$t3)=($t3,$t2);
}
sub BODY_16_XX {
my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
$code.=<<___;
- @ ldr $t1,[sp,#`($i+1)%16`*4] @ $i
- @ ldr $t4,[sp,#`($i+14)%16`*4]
- mov $t0,$t1,ror#$sigma0[0]
- add $a,$a,$t2 @ h+=Maj(a,b,c) from the past
- mov $t2,$t4,ror#$sigma1[0]
- eor $t0,$t0,$t1,ror#$sigma0[1]
- eor $t2,$t2,$t4,ror#$sigma1[1]
- eor $t0,$t0,$t1,lsr#$sigma0[2] @ sigma0(X[i+1])
- ldr $t1,[sp,#`($i+0)%16`*4]
- eor $t2,$t2,$t4,lsr#$sigma1[2] @ sigma1(X[i+14])
- ldr $t4,[sp,#`($i+9)%16`*4]
-
- add $t2,$t2,$t0
- eor $t0,$e,$e,ror#`$Sigma1[1]-$Sigma1[0]` @ from BODY_00_15
- add $t1,$t1,$t2
- eor $t0,$t0,$e,ror#`$Sigma1[2]-$Sigma1[0]` @ Sigma1(e)
- add $t1,$t1,$t4 @ X[i]
+ @ ldr $t3,[sp,#`($i+1)%16`*4] @ $i
+ ldr $t2,[sp,#`($i+14)%16`*4]
+ mov $t0,$t3,ror#$sigma0[0]
+ ldr $T1,[sp,#`($i+0)%16`*4]
+ eor $t0,$t0,$t3,ror#$sigma0[1]
+ ldr $t1,[sp,#`($i+9)%16`*4]
+ eor $t0,$t0,$t3,lsr#$sigma0[2] @ sigma0(X[i+1])
+ mov $t3,$t2,ror#$sigma1[0]
+ add $T1,$T1,$t0
+ eor $t3,$t3,$t2,ror#$sigma1[1]
+ add $T1,$T1,$t1
+ eor $t3,$t3,$t2,lsr#$sigma1[2] @ sigma1(X[i+14])
+ @ add $T1,$T1,$t3
___
&BODY_00_15(@_);
}
@@ -176,64 +147,46 @@ K256:
.word 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
.word 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
.size K256,.-K256
-.word 0 @ terminator
-.LOPENSSL_armcap:
-.word OPENSSL_armcap_P-sha256_block_data_order
-.align 5
.global sha256_block_data_order
.type sha256_block_data_order,%function
sha256_block_data_order:
sub r3,pc,#8 @ sha256_block_data_order
add $len,$inp,$len,lsl#6 @ len to point at the end of inp
-#if __ARM_ARCH__>=7
- ldr r12,.LOPENSSL_armcap
- ldr r12,[r3,r12] @ OPENSSL_armcap_P
- tst r12,#ARMV8_SHA256
- bne .LARMv8
- tst r12,#ARMV7_NEON
- bne .LNEON
-#endif
stmdb sp!,{$ctx,$inp,$len,r4-r11,lr}
ldmia $ctx,{$A,$B,$C,$D,$E,$F,$G,$H}
- sub $Ktbl,r3,#256+32 @ K256
+ sub $Ktbl,r3,#256 @ K256
sub sp,sp,#16*4 @ alloca(X[16])
.Loop:
-# if __ARM_ARCH__>=7
- ldr $t1,[$inp],#4
-# else
- ldrb $t1,[$inp,#3]
-# endif
- eor $t3,$B,$C @ magic
- eor $t2,$t2,$t2
___
for($i=0;$i<16;$i++) { &BODY_00_15($i,@V); unshift(@V,pop(@V)); }
$code.=".Lrounds_16_xx:\n";
for (;$i<32;$i++) { &BODY_16_XX($i,@V); unshift(@V,pop(@V)); }
$code.=<<___;
- ldreq $t3,[sp,#16*4] @ pull ctx
+ and $t2,$t2,#0xff
+ cmp $t2,#0xf2
bne .Lrounds_16_xx
- add $A,$A,$t2 @ h+=Maj(a,b,c) from the past
- ldr $t0,[$t3,#0]
- ldr $t1,[$t3,#4]
- ldr $t2,[$t3,#8]
+ ldr $T1,[sp,#16*4] @ pull ctx
+ ldr $t0,[$T1,#0]
+ ldr $t1,[$T1,#4]
+ ldr $t2,[$T1,#8]
add $A,$A,$t0
- ldr $t0,[$t3,#12]
+ ldr $t0,[$T1,#12]
add $B,$B,$t1
- ldr $t1,[$t3,#16]
+ ldr $t1,[$T1,#16]
add $C,$C,$t2
- ldr $t2,[$t3,#20]
+ ldr $t2,[$T1,#20]
add $D,$D,$t0
- ldr $t0,[$t3,#24]
+ ldr $t0,[$T1,#24]
add $E,$E,$t1
- ldr $t1,[$t3,#28]
+ ldr $t1,[$T1,#28]
add $F,$F,$t2
ldr $inp,[sp,#17*4] @ pull inp
ldr $t2,[sp,#18*4] @ pull inp+len
add $G,$G,$t0
add $H,$H,$t1
- stmia $t3,{$A,$B,$C,$D,$E,$F,$G,$H}
+ stmia $T1,{$A,$B,$C,$D,$E,$F,$G,$H}
cmp $inp,$t2
sub $Ktbl,$Ktbl,#256 @ rewind Ktbl
bne .Loop
@@ -247,410 +200,12 @@ $code.=<<___;
moveq pc,lr @ be binary compatible with V4, yet
bx lr @ interoperable with Thumb ISA:-)
#endif
-.size sha256_block_data_order,.-sha256_block_data_order
-___
-######################################################################
-# NEON stuff
-#
-{{{
-my @X=map("q$_",(0..3));
-my ($T0,$T1,$T2,$T3,$T4,$T5)=("q8","q9","q10","q11","d24","d25");
-my $Xfer=$t4;
-my $j=0;
-
-sub Dlo() { shift=~m|q([1]?[0-9])|?"d".($1*2):""; }
-sub Dhi() { shift=~m|q([1]?[0-9])|?"d".($1*2+1):""; }
-
-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 Xupdate()
-{ use integer;
- my $body = shift;
- my @insns = (&$body,&$body,&$body,&$body);
- my ($a,$b,$c,$d,$e,$f,$g,$h);
-
- &vext_8 ($T0,@X[0],@X[1],4); # X[1..4]
- eval(shift(@insns));
- eval(shift(@insns));
- eval(shift(@insns));
- &vext_8 ($T1,@X[2],@X[3],4); # X[9..12]
- eval(shift(@insns));
- eval(shift(@insns));
- eval(shift(@insns));
- &vshr_u32 ($T2,$T0,$sigma0[0]);
- eval(shift(@insns));
- eval(shift(@insns));
- &vadd_i32 (@X[0],@X[0],$T1); # X[0..3] += X[9..12]
- eval(shift(@insns));
- eval(shift(@insns));
- &vshr_u32 ($T1,$T0,$sigma0[2]);
- eval(shift(@insns));
- eval(shift(@insns));
- &vsli_32 ($T2,$T0,32-$sigma0[0]);
- eval(shift(@insns));
- eval(shift(@insns));
- &vshr_u32 ($T3,$T0,$sigma0[1]);
- eval(shift(@insns));
- eval(shift(@insns));
- &veor ($T1,$T1,$T2);
- eval(shift(@insns));
- eval(shift(@insns));
- &vsli_32 ($T3,$T0,32-$sigma0[1]);
- eval(shift(@insns));
- eval(shift(@insns));
- &vshr_u32 ($T4,&Dhi(@X[3]),$sigma1[0]);
- eval(shift(@insns));
- eval(shift(@insns));
- &veor ($T1,$T1,$T3); # sigma0(X[1..4])
- eval(shift(@insns));
- eval(shift(@insns));
- &vsli_32 ($T4,&Dhi(@X[3]),32-$sigma1[0]);
- eval(shift(@insns));
- eval(shift(@insns));
- &vshr_u32 ($T5,&Dhi(@X[3]),$sigma1[2]);
- eval(shift(@insns));
- eval(shift(@insns));
- &vadd_i32 (@X[0],@X[0],$T1); # X[0..3] += sigma0(X[1..4])
- eval(shift(@insns));
- eval(shift(@insns));
- &veor ($T5,$T5,$T4);
- eval(shift(@insns));
- eval(shift(@insns));
- &vshr_u32 ($T4,&Dhi(@X[3]),$sigma1[1]);
- eval(shift(@insns));
- eval(shift(@insns));
- &vsli_32 ($T4,&Dhi(@X[3]),32-$sigma1[1]);
- eval(shift(@insns));
- eval(shift(@insns));
- &veor ($T5,$T5,$T4); # sigma1(X[14..15])
- eval(shift(@insns));
- eval(shift(@insns));
- &vadd_i32 (&Dlo(@X[0]),&Dlo(@X[0]),$T5);# X[0..1] += sigma1(X[14..15])
- eval(shift(@insns));
- eval(shift(@insns));
- &vshr_u32 ($T4,&Dlo(@X[0]),$sigma1[0]);
- eval(shift(@insns));
- eval(shift(@insns));
- &vsli_32 ($T4,&Dlo(@X[0]),32-$sigma1[0]);
- eval(shift(@insns));
- eval(shift(@insns));
- &vshr_u32 ($T5,&Dlo(@X[0]),$sigma1[2]);
- eval(shift(@insns));
- eval(shift(@insns));
- &veor ($T5,$T5,$T4);
- eval(shift(@insns));
- eval(shift(@insns));
- &vshr_u32 ($T4,&Dlo(@X[0]),$sigma1[1]);
- eval(shift(@insns));
- eval(shift(@insns));
- &vld1_32 ("{$T0}","[$Ktbl,:128]!");
- eval(shift(@insns));
- eval(shift(@insns));
- &vsli_32 ($T4,&Dlo(@X[0]),32-$sigma1[1]);
- eval(shift(@insns));
- eval(shift(@insns));
- &veor ($T5,$T5,$T4); # sigma1(X[16..17])
- eval(shift(@insns));
- eval(shift(@insns));
- &vadd_i32 (&Dhi(@X[0]),&Dhi(@X[0]),$T5);# X[2..3] += sigma1(X[16..17])
- eval(shift(@insns));
- eval(shift(@insns));
- &vadd_i32 ($T0,$T0,@X[0]);
- while($#insns>=2) { eval(shift(@insns)); }
- &vst1_32 ("{$T0}","[$Xfer,:128]!");
- eval(shift(@insns));
- eval(shift(@insns));
-
- push(@X,shift(@X)); # "rotate" X[]
-}
-
-sub Xpreload()
-{ use integer;
- my $body = shift;
- my @insns = (&$body,&$body,&$body,&$body);
- my ($a,$b,$c,$d,$e,$f,$g,$h);
-
- eval(shift(@insns));
- eval(shift(@insns));
- eval(shift(@insns));
- eval(shift(@insns));
- &vld1_32 ("{$T0}","[$Ktbl,:128]!");
- eval(shift(@insns));
- eval(shift(@insns));
- eval(shift(@insns));
- eval(shift(@insns));
- &vrev32_8 (@X[0],@X[0]);
- eval(shift(@insns));
- eval(shift(@insns));
- eval(shift(@insns));
- eval(shift(@insns));
- &vadd_i32 ($T0,$T0,@X[0]);
- foreach (@insns) { eval; } # remaining instructions
- &vst1_32 ("{$T0}","[$Xfer,:128]!");
-
- push(@X,shift(@X)); # "rotate" X[]
-}
-
-sub body_00_15 () {
- (
- '($a,$b,$c,$d,$e,$f,$g,$h)=@V;'.
- '&add ($h,$h,$t1)', # h+=X[i]+K[i]
- '&eor ($t1,$f,$g)',
- '&eor ($t0,$e,$e,"ror#".($Sigma1[1]-$Sigma1[0]))',
- '&add ($a,$a,$t2)', # h+=Maj(a,b,c) from the past
- '&and ($t1,$t1,$e)',
- '&eor ($t2,$t0,$e,"ror#".($Sigma1[2]-$Sigma1[0]))', # Sigma1(e)
- '&eor ($t0,$a,$a,"ror#".($Sigma0[1]-$Sigma0[0]))',
- '&eor ($t1,$t1,$g)', # Ch(e,f,g)
- '&add ($h,$h,$t2,"ror#$Sigma1[0]")', # h+=Sigma1(e)
- '&eor ($t2,$a,$b)', # a^b, b^c in next round
- '&eor ($t0,$t0,$a,"ror#".($Sigma0[2]-$Sigma0[0]))', # Sigma0(a)
- '&add ($h,$h,$t1)', # h+=Ch(e,f,g)
- '&ldr ($t1,sprintf "[sp,#%d]",4*(($j+1)&15)) if (($j&15)!=15);'.
- '&ldr ($t1,"[$Ktbl]") if ($j==15);'.
- '&ldr ($t1,"[sp,#64]") if ($j==31)',
- '&and ($t3,$t3,$t2)', # (b^c)&=(a^b)
- '&add ($d,$d,$h)', # d+=h
- '&add ($h,$h,$t0,"ror#$Sigma0[0]");'. # h+=Sigma0(a)
- '&eor ($t3,$t3,$b)', # Maj(a,b,c)
- '$j++; unshift(@V,pop(@V)); ($t2,$t3)=($t3,$t2);'
- )
-}
-
-$code.=<<___;
-#if __ARM_ARCH__>=7
-.fpu neon
-
-.type sha256_block_data_order_neon,%function
-.align 4
-sha256_block_data_order_neon:
-.LNEON:
- stmdb sp!,{r4-r12,lr}
-
- mov $t2,sp
- sub sp,sp,#16*4+16 @ alloca
- sub $Ktbl,r3,#256+32 @ K256
- bic sp,sp,#15 @ align for 128-bit stores
-
- vld1.8 {@X[0]},[$inp]!
- vld1.8 {@X[1]},[$inp]!
- vld1.8 {@X[2]},[$inp]!
- vld1.8 {@X[3]},[$inp]!
- vld1.32 {$T0},[$Ktbl,:128]!
- vld1.32 {$T1},[$Ktbl,:128]!
- vld1.32 {$T2},[$Ktbl,:128]!
- vld1.32 {$T3},[$Ktbl,:128]!
- vrev32.8 @X[0],@X[0] @ yes, even on
- str $ctx,[sp,#64]
- vrev32.8 @X[1],@X[1] @ big-endian
- str $inp,[sp,#68]
- mov $Xfer,sp
- vrev32.8 @X[2],@X[2]
- str $len,[sp,#72]
- vrev32.8 @X[3],@X[3]
- str $t2,[sp,#76] @ save original sp
- vadd.i32 $T0,$T0,@X[0]
- vadd.i32 $T1,$T1,@X[1]
- vst1.32 {$T0},[$Xfer,:128]!
- vadd.i32 $T2,$T2,@X[2]
- vst1.32 {$T1},[$Xfer,:128]!
- vadd.i32 $T3,$T3,@X[3]
- vst1.32 {$T2},[$Xfer,:128]!
- vst1.32 {$T3},[$Xfer,:128]!
-
- ldmia $ctx,{$A-$H}
- sub $Xfer,$Xfer,#64
- ldr $t1,[sp,#0]
- eor $t2,$t2,$t2
- eor $t3,$B,$C
- b .L_00_48
-
-.align 4
-.L_00_48:
-___
- &Xupdate(\&body_00_15);
- &Xupdate(\&body_00_15);
- &Xupdate(\&body_00_15);
- &Xupdate(\&body_00_15);
-$code.=<<___;
- teq $t1,#0 @ check for K256 terminator
- ldr $t1,[sp,#0]
- sub $Xfer,$Xfer,#64
- bne .L_00_48
-
- ldr $inp,[sp,#68]
- ldr $t0,[sp,#72]
- sub $Ktbl,$Ktbl,#256 @ rewind $Ktbl
- teq $inp,$t0
- subeq $inp,$inp,#64 @ avoid SEGV
- vld1.8 {@X[0]},[$inp]! @ load next input block
- vld1.8 {@X[1]},[$inp]!
- vld1.8 {@X[2]},[$inp]!
- vld1.8 {@X[3]},[$inp]!
- strne $inp,[sp,#68]
- mov $Xfer,sp
-___
- &Xpreload(\&body_00_15);
- &Xpreload(\&body_00_15);
- &Xpreload(\&body_00_15);
- &Xpreload(\&body_00_15);
-$code.=<<___;
- ldr $t0,[$t1,#0]
- add $A,$A,$t2 @ h+=Maj(a,b,c) from the past
- ldr $t2,[$t1,#4]
- ldr $t3,[$t1,#8]
- ldr $t4,[$t1,#12]
- add $A,$A,$t0 @ accumulate
- ldr $t0,[$t1,#16]
- add $B,$B,$t2
- ldr $t2,[$t1,#20]
- add $C,$C,$t3
- ldr $t3,[$t1,#24]
- add $D,$D,$t4
- ldr $t4,[$t1,#28]
- add $E,$E,$t0
- str $A,[$t1],#4
- add $F,$F,$t2
- str $B,[$t1],#4
- add $G,$G,$t3
- str $C,[$t1],#4
- add $H,$H,$t4
- str $D,[$t1],#4
- stmia $t1,{$E-$H}
-
- movne $Xfer,sp
- ldrne $t1,[sp,#0]
- eorne $t2,$t2,$t2
- ldreq sp,[sp,#76] @ restore original sp
- eorne $t3,$B,$C
- bne .L_00_48
-
- ldmia sp!,{r4-r12,pc}
-.size sha256_block_data_order_neon,.-sha256_block_data_order_neon
-#endif
-___
-}}}
-######################################################################
-# ARMv8 stuff
-#
-{{{
-my ($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]
-
- ret @ bx lr
-.size sha256_block_data_order_armv8,.-sha256_block_data_order_armv8
-#endif
-___
-}}}
-$code.=<<___;
-.asciz "SHA256 block transform for ARMv4/NEON/ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
+.size sha256_block_data_order,.-sha256_block_data_order
+.asciz "SHA256 block transform for ARMv4, CRYPTOGAMS by <appro\@openssl.org>"
.align 2
-.comm OPENSSL_armcap_P,4,4
___
-{ my %opcode = (
- "sha256h" => 0xf3000c40, "sha256h2" => 0xf3100c40,
- "sha256su0" => 0xf3ba03c0, "sha256su1" => 0xf3200c40 );
-
- sub unsha256 {
- my ($mnemonic,$arg)=@_;
-
- if ($arg =~ m/q([0-9]+)(?:,\s*q([0-9]+))?,\s*q([0-9]+)/o) {
- my $word = $opcode{$mnemonic}|(($1&7)<<13)|(($1&8)<<19)
- |(($2&7)<<17)|(($2&8)<<4)
- |(($3&7)<<1) |(($3&8)<<2);
- # since ARMv7 instructions are always encoded little-endian.
- # correct solution is to use .inst directive, but older
- # assemblers don't implement it:-(
- sprintf ".byte\t0x%02x,0x%02x,0x%02x,0x%02x\t@ %s %s",
- $word&0xff,($word>>8)&0xff,
- ($word>>16)&0xff,($word>>24)&0xff,
- $mnemonic,$arg;
- }
- }
-}
-
-foreach (split($/,$code)) {
-
- s/\`([^\`]*)\`/eval $1/geo;
-
- s/\b(sha256\w+)\s+(q.*)/unsha256($1,$2)/geo;
-
- s/\bret\b/bx lr/go or
- s/\bbx\s+lr\b/.word\t0xe12fff1e/go; # make it possible to compile with -march=armv4
-
- print $_,"\n";
-}
-
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
+$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4
+print $code;
close STDOUT; # enforce flush