diff options
Diffstat (limited to 'ics-openvpn-stripped/main/openssl/crypto/sha/asm/sha256-armv4.pl')
| -rw-r--r-- | ics-openvpn-stripped/main/openssl/crypto/sha/asm/sha256-armv4.pl | 656 |
1 files changed, 0 insertions, 656 deletions
diff --git a/ics-openvpn-stripped/main/openssl/crypto/sha/asm/sha256-armv4.pl b/ics-openvpn-stripped/main/openssl/crypto/sha/asm/sha256-armv4.pl deleted file mode 100644 index 505ca8f3..00000000 --- a/ics-openvpn-stripped/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 |