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path: root/main/openssl/crypto/sha/asm/sha256-armv4.pl
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Diffstat (limited to 'main/openssl/crypto/sha/asm/sha256-armv4.pl')
m---------main/openssl0
-rw-r--r--main/openssl/crypto/sha/asm/sha256-armv4.pl656
2 files changed, 0 insertions, 656 deletions
diff --git a/main/openssl b/main/openssl
new file mode 160000
+Subproject 4d377a9ce111930d8a8f06dc0e94a892a7f6c51
diff --git a/main/openssl/crypto/sha/asm/sha256-armv4.pl b/main/openssl/crypto/sha/asm/sha256-armv4.pl
deleted file mode 100644
index 505ca8f3..00000000
--- a/main/openssl/crypto/sha/asm/sha256-armv4.pl
+++ /dev/null
@@ -1,656 +0,0 @@
-#!/usr/bin/env perl
-
-# ====================================================================
-# Written by Andy Polyakov <appro@openssl.org> 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/.
-# ====================================================================
-
-# SHA256 block procedure for ARMv4. May 2007.
-
-# Performance is ~2x better than gcc 3.4 generated code and in "abso-
-# lute" terms is ~2250 cycles per 64-byte block or ~35 cycles per
-# byte [on single-issue Xscale PXA250 core].
-
-# July 2010.
-#
-# Rescheduling for dual-issue pipeline resulted in 22% improvement on
-# Cortex A8 core and ~20 cycles per processed byte.
-
-# 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.
-
-while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
-open STDOUT,">$output";
-
-$ctx="r0"; $t0="r0";
-$inp="r1"; $t4="r1";
-$len="r2"; $t1="r2";
-$T1="r3"; $t3="r3";
-$A="r4";
-$B="r5";
-$C="r6";
-$D="r7";
-$E="r8";
-$F="r9";
-$G="r10";
-$H="r11";
-@V=($A,$B,$C,$D,$E,$F,$G,$H);
-$t2="r12";
-$Ktbl="r14";
-
-@Sigma0=( 2,13,22);
-@Sigma1=( 6,11,25);
-@sigma0=( 7,18, 3);
-@sigma1=(17,19,10);
-
-sub BODY_00_15 {
-my ($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
-#else
- @ ldrb $t1,[$inp,#3] @ $i
- add $a,$a,$t2 @ h+=Maj(a,b,c) from the past
- 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]-$Sigma1[0]` @ Sigma1(e)
-#endif
-___
-$code.=<<___;
- ldr $t2,[$Ktbl],#4 @ *K256++
- add $h,$h,$t1 @ h+=X[i]
- str $t1,[sp,#`$i%16`*4]
- eor $t1,$f,$g
- add $h,$h,$t0,ror#$Sigma1[0] @ h+=Sigma1(e)
- and $t1,$t1,$e
- add $h,$h,$t2 @ h+=K256[i]
- 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?
-#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,$t3 @ h+=Maj(a,b,c)
-___
- ($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,$t4 @ X[i]
-___
- &BODY_00_15(@_);
-}
-
-$code=<<___;
-#include "arm_arch.h"
-
-.text
-.code 32
-
-.type K256,%object
-.align 5
-K256:
-.word 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
-.word 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
-.word 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
-.word 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
-.word 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
-.word 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
-.word 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
-.word 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
-.word 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
-.word 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
-.word 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
-.word 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
-.word 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
-.word 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
-.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 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
- 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]
- add $A,$A,$t0
- ldr $t0,[$t3,#12]
- add $B,$B,$t1
- ldr $t1,[$t3,#16]
- add $C,$C,$t2
- ldr $t2,[$t3,#20]
- add $D,$D,$t0
- ldr $t0,[$t3,#24]
- add $E,$E,$t1
- ldr $t1,[$t3,#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}
- cmp $inp,$t2
- sub $Ktbl,$Ktbl,#256 @ rewind Ktbl
- bne .Loop
-
- add sp,sp,#`16+3`*4 @ destroy frame
-#if __ARM_ARCH__>=5
- ldmia sp!,{r4-r11,pc}
-#else
- ldmia sp!,{r4-r11,lr}
- tst lr,#1
- 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
-___
-}}}
-$code.=<<___;
-.asciz "SHA256 block transform for ARMv4/NEON/ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
-.align 2
-.comm OPENSSL_armcap_P,4,4
-___
-
-{ my %opcode = (
- "sha256h" => 0xf3000c40, "sha256h2" => 0xf3100c40,
- "sha256su0" => 0xf3ba03c0, "sha256su1" => 0xf3200c40 );
-
- sub unsha256 {
- my ($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";
-}
-
-close STDOUT; # enforce flush