| #!/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/. |
| # |
| # Permission to use under GPL terms is granted. |
| # ==================================================================== |
| |
| # SHA512 block procedure for ARMv4. September 2007. |
| |
| # This code is ~4.5 (four and a half) times faster than code generated |
| # by gcc 3.4 and it spends ~72 clock cycles per byte [on single-issue |
| # Xscale PXA250 core]. |
| # |
| # July 2010. |
| # |
| # Rescheduling for dual-issue pipeline resulted in 6% improvement on |
| # Cortex A8 core and ~40 cycles per processed byte. |
| |
| # February 2011. |
| # |
| # Profiler-assisted and platform-specific optimization resulted in 7% |
| # improvement on Coxtex A8 core and ~38 cycles per byte. |
| |
| # March 2011. |
| # |
| # Add NEON implementation. On Cortex A8 it was measured to process |
| # one byte in 23.3 cycles or ~60% faster than integer-only code. |
| |
| # August 2012. |
| # |
| # Improve NEON performance by 12% on Snapdragon S4. In absolute |
| # terms it's 22.6 cycles per byte, which is disappointing result. |
| # Technical writers asserted that 3-way S4 pipeline can sustain |
| # multiple NEON instructions per cycle, but dual NEON issue could |
| # not be observed, see http://www.openssl.org/~appro/Snapdragon-S4.html |
| # for further details. On side note Cortex-A15 processes one byte in |
| # 16 cycles. |
| |
| # Byte order [in]dependence. ========================================= |
| # |
| # Originally caller was expected to maintain specific *dword* order in |
| # h[0-7], namely with most significant dword at *lower* address, which |
| # was reflected in below two parameters as 0 and 4. Now caller is |
| # expected to maintain native byte order for whole 64-bit values. |
| $hi="HI"; |
| $lo="LO"; |
| # ==================================================================== |
| |
| $flavour = shift; |
| if ($flavour=~/^\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; } |
| else { while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} } |
| |
| if ($flavour && $flavour ne "void") { |
| $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; |
| ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or |
| ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or |
| die "can't locate arm-xlate.pl"; |
| |
| open STDOUT,"| \"$^X\" $xlate $flavour $output"; |
| } else { |
| open STDOUT,">$output"; |
| } |
| |
| $ctx="r0"; # parameter block |
| $inp="r1"; |
| $len="r2"; |
| |
| $Tlo="r3"; |
| $Thi="r4"; |
| $Alo="r5"; |
| $Ahi="r6"; |
| $Elo="r7"; |
| $Ehi="r8"; |
| $t0="r9"; |
| $t1="r10"; |
| $t2="r11"; |
| $t3="r12"; |
| ############ r13 is stack pointer |
| $Ktbl="r14"; |
| ############ r15 is program counter |
| |
| $Aoff=8*0; |
| $Boff=8*1; |
| $Coff=8*2; |
| $Doff=8*3; |
| $Eoff=8*4; |
| $Foff=8*5; |
| $Goff=8*6; |
| $Hoff=8*7; |
| $Xoff=8*8; |
| |
| sub BODY_00_15() { |
| my $magic = shift; |
| $code.=<<___; |
| @ Sigma1(x) (ROTR((x),14) ^ ROTR((x),18) ^ ROTR((x),41)) |
| @ LO lo>>14^hi<<18 ^ lo>>18^hi<<14 ^ hi>>9^lo<<23 |
| @ HI hi>>14^lo<<18 ^ hi>>18^lo<<14 ^ lo>>9^hi<<23 |
| mov $t0,$Elo,lsr#14 |
| str $Tlo,[sp,#$Xoff+0] |
| mov $t1,$Ehi,lsr#14 |
| str $Thi,[sp,#$Xoff+4] |
| eor $t0,$t0,$Ehi,lsl#18 |
| ldr $t2,[sp,#$Hoff+0] @ h.lo |
| eor $t1,$t1,$Elo,lsl#18 |
| ldr $t3,[sp,#$Hoff+4] @ h.hi |
| eor $t0,$t0,$Elo,lsr#18 |
| eor $t1,$t1,$Ehi,lsr#18 |
| eor $t0,$t0,$Ehi,lsl#14 |
| eor $t1,$t1,$Elo,lsl#14 |
| eor $t0,$t0,$Ehi,lsr#9 |
| eor $t1,$t1,$Elo,lsr#9 |
| eor $t0,$t0,$Elo,lsl#23 |
| eor $t1,$t1,$Ehi,lsl#23 @ Sigma1(e) |
| adds $Tlo,$Tlo,$t0 |
| ldr $t0,[sp,#$Foff+0] @ f.lo |
| adc $Thi,$Thi,$t1 @ T += Sigma1(e) |
| ldr $t1,[sp,#$Foff+4] @ f.hi |
| adds $Tlo,$Tlo,$t2 |
| ldr $t2,[sp,#$Goff+0] @ g.lo |
| adc $Thi,$Thi,$t3 @ T += h |
| ldr $t3,[sp,#$Goff+4] @ g.hi |
| |
| eor $t0,$t0,$t2 |
| str $Elo,[sp,#$Eoff+0] |
| eor $t1,$t1,$t3 |
| str $Ehi,[sp,#$Eoff+4] |
| and $t0,$t0,$Elo |
| str $Alo,[sp,#$Aoff+0] |
| and $t1,$t1,$Ehi |
| str $Ahi,[sp,#$Aoff+4] |
| eor $t0,$t0,$t2 |
| ldr $t2,[$Ktbl,#$lo] @ K[i].lo |
| eor $t1,$t1,$t3 @ Ch(e,f,g) |
| ldr $t3,[$Ktbl,#$hi] @ K[i].hi |
| |
| adds $Tlo,$Tlo,$t0 |
| ldr $Elo,[sp,#$Doff+0] @ d.lo |
| adc $Thi,$Thi,$t1 @ T += Ch(e,f,g) |
| ldr $Ehi,[sp,#$Doff+4] @ d.hi |
| adds $Tlo,$Tlo,$t2 |
| and $t0,$t2,#0xff |
| adc $Thi,$Thi,$t3 @ T += K[i] |
| adds $Elo,$Elo,$Tlo |
| ldr $t2,[sp,#$Boff+0] @ b.lo |
| adc $Ehi,$Ehi,$Thi @ d += T |
| teq $t0,#$magic |
| |
| ldr $t3,[sp,#$Coff+0] @ c.lo |
| #if __ARM_ARCH__>=7 |
| it eq @ Thumb2 thing, sanity check in ARM |
| #endif |
| orreq $Ktbl,$Ktbl,#1 |
| @ Sigma0(x) (ROTR((x),28) ^ ROTR((x),34) ^ ROTR((x),39)) |
| @ LO lo>>28^hi<<4 ^ hi>>2^lo<<30 ^ hi>>7^lo<<25 |
| @ HI hi>>28^lo<<4 ^ lo>>2^hi<<30 ^ lo>>7^hi<<25 |
| mov $t0,$Alo,lsr#28 |
| mov $t1,$Ahi,lsr#28 |
| eor $t0,$t0,$Ahi,lsl#4 |
| eor $t1,$t1,$Alo,lsl#4 |
| eor $t0,$t0,$Ahi,lsr#2 |
| eor $t1,$t1,$Alo,lsr#2 |
| eor $t0,$t0,$Alo,lsl#30 |
| eor $t1,$t1,$Ahi,lsl#30 |
| eor $t0,$t0,$Ahi,lsr#7 |
| eor $t1,$t1,$Alo,lsr#7 |
| eor $t0,$t0,$Alo,lsl#25 |
| eor $t1,$t1,$Ahi,lsl#25 @ Sigma0(a) |
| adds $Tlo,$Tlo,$t0 |
| and $t0,$Alo,$t2 |
| adc $Thi,$Thi,$t1 @ T += Sigma0(a) |
| |
| ldr $t1,[sp,#$Boff+4] @ b.hi |
| orr $Alo,$Alo,$t2 |
| ldr $t2,[sp,#$Coff+4] @ c.hi |
| and $Alo,$Alo,$t3 |
| and $t3,$Ahi,$t1 |
| orr $Ahi,$Ahi,$t1 |
| orr $Alo,$Alo,$t0 @ Maj(a,b,c).lo |
| and $Ahi,$Ahi,$t2 |
| adds $Alo,$Alo,$Tlo |
| orr $Ahi,$Ahi,$t3 @ Maj(a,b,c).hi |
| sub sp,sp,#8 |
| adc $Ahi,$Ahi,$Thi @ h += T |
| tst $Ktbl,#1 |
| add $Ktbl,$Ktbl,#8 |
| ___ |
| } |
| $code=<<___; |
| #ifndef __KERNEL__ |
| # include <openssl/arm_arch.h> |
| # define VFP_ABI_PUSH vstmdb sp!,{d8-d15} |
| # define VFP_ABI_POP vldmia sp!,{d8-d15} |
| #else |
| # define __ARM_ARCH__ __LINUX_ARM_ARCH__ |
| # define __ARM_MAX_ARCH__ 7 |
| # define VFP_ABI_PUSH |
| # define VFP_ABI_POP |
| #endif |
| |
| #ifdef __ARMEL__ |
| # define LO 0 |
| # define HI 4 |
| # define WORD64(hi0,lo0,hi1,lo1) .word lo0,hi0, lo1,hi1 |
| #else |
| # define HI 0 |
| # define LO 4 |
| # define WORD64(hi0,lo0,hi1,lo1) .word hi0,lo0, hi1,lo1 |
| #endif |
| |
| .text |
| #if __ARM_ARCH__<7 || defined(__APPLE__) |
| .code 32 |
| #else |
| .syntax unified |
| # ifdef __thumb2__ |
| # define adrl adr |
| .thumb |
| # else |
| .code 32 |
| # endif |
| #endif |
| |
| .type K512,%object |
| .align 5 |
| K512: |
| WORD64(0x428a2f98,0xd728ae22, 0x71374491,0x23ef65cd) |
| WORD64(0xb5c0fbcf,0xec4d3b2f, 0xe9b5dba5,0x8189dbbc) |
| WORD64(0x3956c25b,0xf348b538, 0x59f111f1,0xb605d019) |
| WORD64(0x923f82a4,0xaf194f9b, 0xab1c5ed5,0xda6d8118) |
| WORD64(0xd807aa98,0xa3030242, 0x12835b01,0x45706fbe) |
| WORD64(0x243185be,0x4ee4b28c, 0x550c7dc3,0xd5ffb4e2) |
| WORD64(0x72be5d74,0xf27b896f, 0x80deb1fe,0x3b1696b1) |
| WORD64(0x9bdc06a7,0x25c71235, 0xc19bf174,0xcf692694) |
| WORD64(0xe49b69c1,0x9ef14ad2, 0xefbe4786,0x384f25e3) |
| WORD64(0x0fc19dc6,0x8b8cd5b5, 0x240ca1cc,0x77ac9c65) |
| WORD64(0x2de92c6f,0x592b0275, 0x4a7484aa,0x6ea6e483) |
| WORD64(0x5cb0a9dc,0xbd41fbd4, 0x76f988da,0x831153b5) |
| WORD64(0x983e5152,0xee66dfab, 0xa831c66d,0x2db43210) |
| WORD64(0xb00327c8,0x98fb213f, 0xbf597fc7,0xbeef0ee4) |
| WORD64(0xc6e00bf3,0x3da88fc2, 0xd5a79147,0x930aa725) |
| WORD64(0x06ca6351,0xe003826f, 0x14292967,0x0a0e6e70) |
| WORD64(0x27b70a85,0x46d22ffc, 0x2e1b2138,0x5c26c926) |
| WORD64(0x4d2c6dfc,0x5ac42aed, 0x53380d13,0x9d95b3df) |
| WORD64(0x650a7354,0x8baf63de, 0x766a0abb,0x3c77b2a8) |
| WORD64(0x81c2c92e,0x47edaee6, 0x92722c85,0x1482353b) |
| WORD64(0xa2bfe8a1,0x4cf10364, 0xa81a664b,0xbc423001) |
| WORD64(0xc24b8b70,0xd0f89791, 0xc76c51a3,0x0654be30) |
| WORD64(0xd192e819,0xd6ef5218, 0xd6990624,0x5565a910) |
| WORD64(0xf40e3585,0x5771202a, 0x106aa070,0x32bbd1b8) |
| WORD64(0x19a4c116,0xb8d2d0c8, 0x1e376c08,0x5141ab53) |
| WORD64(0x2748774c,0xdf8eeb99, 0x34b0bcb5,0xe19b48a8) |
| WORD64(0x391c0cb3,0xc5c95a63, 0x4ed8aa4a,0xe3418acb) |
| WORD64(0x5b9cca4f,0x7763e373, 0x682e6ff3,0xd6b2b8a3) |
| WORD64(0x748f82ee,0x5defb2fc, 0x78a5636f,0x43172f60) |
| WORD64(0x84c87814,0xa1f0ab72, 0x8cc70208,0x1a6439ec) |
| WORD64(0x90befffa,0x23631e28, 0xa4506ceb,0xde82bde9) |
| WORD64(0xbef9a3f7,0xb2c67915, 0xc67178f2,0xe372532b) |
| WORD64(0xca273ece,0xea26619c, 0xd186b8c7,0x21c0c207) |
| WORD64(0xeada7dd6,0xcde0eb1e, 0xf57d4f7f,0xee6ed178) |
| WORD64(0x06f067aa,0x72176fba, 0x0a637dc5,0xa2c898a6) |
| WORD64(0x113f9804,0xbef90dae, 0x1b710b35,0x131c471b) |
| WORD64(0x28db77f5,0x23047d84, 0x32caab7b,0x40c72493) |
| WORD64(0x3c9ebe0a,0x15c9bebc, 0x431d67c4,0x9c100d4c) |
| WORD64(0x4cc5d4be,0xcb3e42b6, 0x597f299c,0xfc657e2a) |
| WORD64(0x5fcb6fab,0x3ad6faec, 0x6c44198c,0x4a475817) |
| .size K512,.-K512 |
| #if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__) |
| .LOPENSSL_armcap: |
| .word OPENSSL_armcap_P-.Lsha512_block_data_order |
| .skip 32-4 |
| #else |
| .skip 32 |
| #endif |
| |
| .global sha512_block_data_order |
| .type sha512_block_data_order,%function |
| sha512_block_data_order: |
| .Lsha512_block_data_order: |
| #if __ARM_ARCH__<7 |
| sub r3,pc,#8 @ sha512_block_data_order |
| #else |
| adr r3,sha512_block_data_order |
| #endif |
| #if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__) |
| ldr r12,.LOPENSSL_armcap |
| ldr r12,[r3,r12] @ OPENSSL_armcap_P |
| #ifdef __APPLE__ |
| ldr r12,[r12] |
| #endif |
| tst r12,#ARMV7_NEON |
| bne .LNEON |
| #endif |
| add $len,$inp,$len,lsl#7 @ len to point at the end of inp |
| stmdb sp!,{r4-r12,lr} |
| sub $Ktbl,r3,#672 @ K512 |
| sub sp,sp,#9*8 |
| |
| ldr $Elo,[$ctx,#$Eoff+$lo] |
| ldr $Ehi,[$ctx,#$Eoff+$hi] |
| ldr $t0, [$ctx,#$Goff+$lo] |
| ldr $t1, [$ctx,#$Goff+$hi] |
| ldr $t2, [$ctx,#$Hoff+$lo] |
| ldr $t3, [$ctx,#$Hoff+$hi] |
| .Loop: |
| str $t0, [sp,#$Goff+0] |
| str $t1, [sp,#$Goff+4] |
| str $t2, [sp,#$Hoff+0] |
| str $t3, [sp,#$Hoff+4] |
| ldr $Alo,[$ctx,#$Aoff+$lo] |
| ldr $Ahi,[$ctx,#$Aoff+$hi] |
| ldr $Tlo,[$ctx,#$Boff+$lo] |
| ldr $Thi,[$ctx,#$Boff+$hi] |
| ldr $t0, [$ctx,#$Coff+$lo] |
| ldr $t1, [$ctx,#$Coff+$hi] |
| ldr $t2, [$ctx,#$Doff+$lo] |
| ldr $t3, [$ctx,#$Doff+$hi] |
| str $Tlo,[sp,#$Boff+0] |
| str $Thi,[sp,#$Boff+4] |
| str $t0, [sp,#$Coff+0] |
| str $t1, [sp,#$Coff+4] |
| str $t2, [sp,#$Doff+0] |
| str $t3, [sp,#$Doff+4] |
| ldr $Tlo,[$ctx,#$Foff+$lo] |
| ldr $Thi,[$ctx,#$Foff+$hi] |
| str $Tlo,[sp,#$Foff+0] |
| str $Thi,[sp,#$Foff+4] |
| |
| .L00_15: |
| #if __ARM_ARCH__<7 |
| ldrb $Tlo,[$inp,#7] |
| ldrb $t0, [$inp,#6] |
| ldrb $t1, [$inp,#5] |
| ldrb $t2, [$inp,#4] |
| ldrb $Thi,[$inp,#3] |
| ldrb $t3, [$inp,#2] |
| orr $Tlo,$Tlo,$t0,lsl#8 |
| ldrb $t0, [$inp,#1] |
| orr $Tlo,$Tlo,$t1,lsl#16 |
| ldrb $t1, [$inp],#8 |
| orr $Tlo,$Tlo,$t2,lsl#24 |
| orr $Thi,$Thi,$t3,lsl#8 |
| orr $Thi,$Thi,$t0,lsl#16 |
| orr $Thi,$Thi,$t1,lsl#24 |
| #else |
| ldr $Tlo,[$inp,#4] |
| ldr $Thi,[$inp],#8 |
| #ifdef __ARMEL__ |
| rev $Tlo,$Tlo |
| rev $Thi,$Thi |
| #endif |
| #endif |
| ___ |
| &BODY_00_15(0x94); |
| $code.=<<___; |
| tst $Ktbl,#1 |
| beq .L00_15 |
| ldr $t0,[sp,#`$Xoff+8*(16-1)`+0] |
| ldr $t1,[sp,#`$Xoff+8*(16-1)`+4] |
| bic $Ktbl,$Ktbl,#1 |
| .L16_79: |
| @ sigma0(x) (ROTR((x),1) ^ ROTR((x),8) ^ ((x)>>7)) |
| @ LO lo>>1^hi<<31 ^ lo>>8^hi<<24 ^ lo>>7^hi<<25 |
| @ HI hi>>1^lo<<31 ^ hi>>8^lo<<24 ^ hi>>7 |
| mov $Tlo,$t0,lsr#1 |
| ldr $t2,[sp,#`$Xoff+8*(16-14)`+0] |
| mov $Thi,$t1,lsr#1 |
| ldr $t3,[sp,#`$Xoff+8*(16-14)`+4] |
| eor $Tlo,$Tlo,$t1,lsl#31 |
| eor $Thi,$Thi,$t0,lsl#31 |
| eor $Tlo,$Tlo,$t0,lsr#8 |
| eor $Thi,$Thi,$t1,lsr#8 |
| eor $Tlo,$Tlo,$t1,lsl#24 |
| eor $Thi,$Thi,$t0,lsl#24 |
| eor $Tlo,$Tlo,$t0,lsr#7 |
| eor $Thi,$Thi,$t1,lsr#7 |
| eor $Tlo,$Tlo,$t1,lsl#25 |
| |
| @ sigma1(x) (ROTR((x),19) ^ ROTR((x),61) ^ ((x)>>6)) |
| @ LO lo>>19^hi<<13 ^ hi>>29^lo<<3 ^ lo>>6^hi<<26 |
| @ HI hi>>19^lo<<13 ^ lo>>29^hi<<3 ^ hi>>6 |
| mov $t0,$t2,lsr#19 |
| mov $t1,$t3,lsr#19 |
| eor $t0,$t0,$t3,lsl#13 |
| eor $t1,$t1,$t2,lsl#13 |
| eor $t0,$t0,$t3,lsr#29 |
| eor $t1,$t1,$t2,lsr#29 |
| eor $t0,$t0,$t2,lsl#3 |
| eor $t1,$t1,$t3,lsl#3 |
| eor $t0,$t0,$t2,lsr#6 |
| eor $t1,$t1,$t3,lsr#6 |
| ldr $t2,[sp,#`$Xoff+8*(16-9)`+0] |
| eor $t0,$t0,$t3,lsl#26 |
| |
| ldr $t3,[sp,#`$Xoff+8*(16-9)`+4] |
| adds $Tlo,$Tlo,$t0 |
| ldr $t0,[sp,#`$Xoff+8*16`+0] |
| adc $Thi,$Thi,$t1 |
| |
| ldr $t1,[sp,#`$Xoff+8*16`+4] |
| adds $Tlo,$Tlo,$t2 |
| adc $Thi,$Thi,$t3 |
| adds $Tlo,$Tlo,$t0 |
| adc $Thi,$Thi,$t1 |
| ___ |
| &BODY_00_15(0x17); |
| $code.=<<___; |
| #if __ARM_ARCH__>=7 |
| ittt eq @ Thumb2 thing, sanity check in ARM |
| #endif |
| ldreq $t0,[sp,#`$Xoff+8*(16-1)`+0] |
| ldreq $t1,[sp,#`$Xoff+8*(16-1)`+4] |
| beq .L16_79 |
| bic $Ktbl,$Ktbl,#1 |
| |
| ldr $Tlo,[sp,#$Boff+0] |
| ldr $Thi,[sp,#$Boff+4] |
| ldr $t0, [$ctx,#$Aoff+$lo] |
| ldr $t1, [$ctx,#$Aoff+$hi] |
| ldr $t2, [$ctx,#$Boff+$lo] |
| ldr $t3, [$ctx,#$Boff+$hi] |
| adds $t0,$Alo,$t0 |
| str $t0, [$ctx,#$Aoff+$lo] |
| adc $t1,$Ahi,$t1 |
| str $t1, [$ctx,#$Aoff+$hi] |
| adds $t2,$Tlo,$t2 |
| str $t2, [$ctx,#$Boff+$lo] |
| adc $t3,$Thi,$t3 |
| str $t3, [$ctx,#$Boff+$hi] |
| |
| ldr $Alo,[sp,#$Coff+0] |
| ldr $Ahi,[sp,#$Coff+4] |
| ldr $Tlo,[sp,#$Doff+0] |
| ldr $Thi,[sp,#$Doff+4] |
| ldr $t0, [$ctx,#$Coff+$lo] |
| ldr $t1, [$ctx,#$Coff+$hi] |
| ldr $t2, [$ctx,#$Doff+$lo] |
| ldr $t3, [$ctx,#$Doff+$hi] |
| adds $t0,$Alo,$t0 |
| str $t0, [$ctx,#$Coff+$lo] |
| adc $t1,$Ahi,$t1 |
| str $t1, [$ctx,#$Coff+$hi] |
| adds $t2,$Tlo,$t2 |
| str $t2, [$ctx,#$Doff+$lo] |
| adc $t3,$Thi,$t3 |
| str $t3, [$ctx,#$Doff+$hi] |
| |
| ldr $Tlo,[sp,#$Foff+0] |
| ldr $Thi,[sp,#$Foff+4] |
| ldr $t0, [$ctx,#$Eoff+$lo] |
| ldr $t1, [$ctx,#$Eoff+$hi] |
| ldr $t2, [$ctx,#$Foff+$lo] |
| ldr $t3, [$ctx,#$Foff+$hi] |
| adds $Elo,$Elo,$t0 |
| str $Elo,[$ctx,#$Eoff+$lo] |
| adc $Ehi,$Ehi,$t1 |
| str $Ehi,[$ctx,#$Eoff+$hi] |
| adds $t2,$Tlo,$t2 |
| str $t2, [$ctx,#$Foff+$lo] |
| adc $t3,$Thi,$t3 |
| str $t3, [$ctx,#$Foff+$hi] |
| |
| ldr $Alo,[sp,#$Goff+0] |
| ldr $Ahi,[sp,#$Goff+4] |
| ldr $Tlo,[sp,#$Hoff+0] |
| ldr $Thi,[sp,#$Hoff+4] |
| ldr $t0, [$ctx,#$Goff+$lo] |
| ldr $t1, [$ctx,#$Goff+$hi] |
| ldr $t2, [$ctx,#$Hoff+$lo] |
| ldr $t3, [$ctx,#$Hoff+$hi] |
| adds $t0,$Alo,$t0 |
| str $t0, [$ctx,#$Goff+$lo] |
| adc $t1,$Ahi,$t1 |
| str $t1, [$ctx,#$Goff+$hi] |
| adds $t2,$Tlo,$t2 |
| str $t2, [$ctx,#$Hoff+$lo] |
| adc $t3,$Thi,$t3 |
| str $t3, [$ctx,#$Hoff+$hi] |
| |
| add sp,sp,#640 |
| sub $Ktbl,$Ktbl,#640 |
| |
| teq $inp,$len |
| bne .Loop |
| |
| add sp,sp,#8*9 @ destroy frame |
| #if __ARM_ARCH__>=5 |
| ldmia sp!,{r4-r12,pc} |
| #else |
| ldmia sp!,{r4-r12,lr} |
| tst lr,#1 |
| moveq pc,lr @ be binary compatible with V4, yet |
| bx lr @ interoperable with Thumb ISA:-) |
| #endif |
| .size sha512_block_data_order,.-sha512_block_data_order |
| ___ |
| |
| { |
| my @Sigma0=(28,34,39); |
| my @Sigma1=(14,18,41); |
| my @sigma0=(1, 8, 7); |
| my @sigma1=(19,61,6); |
| |
| my $Ktbl="r3"; |
| my $cnt="r12"; # volatile register known as ip, intra-procedure-call scratch |
| |
| my @X=map("d$_",(0..15)); |
| my @V=($A,$B,$C,$D,$E,$F,$G,$H)=map("d$_",(16..23)); |
| |
| sub NEON_00_15() { |
| my $i=shift; |
| my ($a,$b,$c,$d,$e,$f,$g,$h)=@_; |
| my ($t0,$t1,$t2,$T1,$K,$Ch,$Maj)=map("d$_",(24..31)); # temps |
| |
| $code.=<<___ if ($i<16 || $i&1); |
| vshr.u64 $t0,$e,#@Sigma1[0] @ $i |
| #if $i<16 |
| vld1.64 {@X[$i%16]},[$inp]! @ handles unaligned |
| #endif |
| vshr.u64 $t1,$e,#@Sigma1[1] |
| #if $i>0 |
| vadd.i64 $a,$Maj @ h+=Maj from the past |
| #endif |
| vshr.u64 $t2,$e,#@Sigma1[2] |
| ___ |
| $code.=<<___; |
| vld1.64 {$K},[$Ktbl,:64]! @ K[i++] |
| vsli.64 $t0,$e,#`64-@Sigma1[0]` |
| vsli.64 $t1,$e,#`64-@Sigma1[1]` |
| vmov $Ch,$e |
| vsli.64 $t2,$e,#`64-@Sigma1[2]` |
| #if $i<16 && defined(__ARMEL__) |
| vrev64.8 @X[$i],@X[$i] |
| #endif |
| veor $t1,$t0 |
| vbsl $Ch,$f,$g @ Ch(e,f,g) |
| vshr.u64 $t0,$a,#@Sigma0[0] |
| veor $t2,$t1 @ Sigma1(e) |
| vadd.i64 $T1,$Ch,$h |
| vshr.u64 $t1,$a,#@Sigma0[1] |
| vsli.64 $t0,$a,#`64-@Sigma0[0]` |
| vadd.i64 $T1,$t2 |
| vshr.u64 $t2,$a,#@Sigma0[2] |
| vadd.i64 $K,@X[$i%16] |
| vsli.64 $t1,$a,#`64-@Sigma0[1]` |
| veor $Maj,$a,$b |
| vsli.64 $t2,$a,#`64-@Sigma0[2]` |
| veor $h,$t0,$t1 |
| vadd.i64 $T1,$K |
| vbsl $Maj,$c,$b @ Maj(a,b,c) |
| veor $h,$t2 @ Sigma0(a) |
| vadd.i64 $d,$T1 |
| vadd.i64 $Maj,$T1 |
| @ vadd.i64 $h,$Maj |
| ___ |
| } |
| |
| sub NEON_16_79() { |
| my $i=shift; |
| |
| if ($i&1) { &NEON_00_15($i,@_); return; } |
| |
| # 2x-vectorized, therefore runs every 2nd round |
| my @X=map("q$_",(0..7)); # view @X as 128-bit vector |
| my ($t0,$t1,$s0,$s1) = map("q$_",(12..15)); # temps |
| my ($d0,$d1,$d2) = map("d$_",(24..26)); # temps from NEON_00_15 |
| my $e=@_[4]; # $e from NEON_00_15 |
| $i /= 2; |
| $code.=<<___; |
| vshr.u64 $t0,@X[($i+7)%8],#@sigma1[0] |
| vshr.u64 $t1,@X[($i+7)%8],#@sigma1[1] |
| vadd.i64 @_[0],d30 @ h+=Maj from the past |
| vshr.u64 $s1,@X[($i+7)%8],#@sigma1[2] |
| vsli.64 $t0,@X[($i+7)%8],#`64-@sigma1[0]` |
| vext.8 $s0,@X[$i%8],@X[($i+1)%8],#8 @ X[i+1] |
| vsli.64 $t1,@X[($i+7)%8],#`64-@sigma1[1]` |
| veor $s1,$t0 |
| vshr.u64 $t0,$s0,#@sigma0[0] |
| veor $s1,$t1 @ sigma1(X[i+14]) |
| vshr.u64 $t1,$s0,#@sigma0[1] |
| vadd.i64 @X[$i%8],$s1 |
| vshr.u64 $s1,$s0,#@sigma0[2] |
| vsli.64 $t0,$s0,#`64-@sigma0[0]` |
| vsli.64 $t1,$s0,#`64-@sigma0[1]` |
| vext.8 $s0,@X[($i+4)%8],@X[($i+5)%8],#8 @ X[i+9] |
| veor $s1,$t0 |
| vshr.u64 $d0,$e,#@Sigma1[0] @ from NEON_00_15 |
| vadd.i64 @X[$i%8],$s0 |
| vshr.u64 $d1,$e,#@Sigma1[1] @ from NEON_00_15 |
| veor $s1,$t1 @ sigma0(X[i+1]) |
| vshr.u64 $d2,$e,#@Sigma1[2] @ from NEON_00_15 |
| vadd.i64 @X[$i%8],$s1 |
| ___ |
| &NEON_00_15(2*$i,@_); |
| } |
| |
| $code.=<<___; |
| #if __ARM_MAX_ARCH__>=7 |
| .arch armv7-a |
| .fpu neon |
| |
| .global sha512_block_data_order_neon |
| .type sha512_block_data_order_neon,%function |
| .align 4 |
| sha512_block_data_order_neon: |
| .LNEON: |
| dmb @ errata #451034 on early Cortex A8 |
| add $len,$inp,$len,lsl#7 @ len to point at the end of inp |
| adr $Ktbl,K512 |
| VFP_ABI_PUSH |
| vldmia $ctx,{$A-$H} @ load context |
| .Loop_neon: |
| ___ |
| for($i=0;$i<16;$i++) { &NEON_00_15($i,@V); unshift(@V,pop(@V)); } |
| $code.=<<___; |
| mov $cnt,#4 |
| .L16_79_neon: |
| subs $cnt,#1 |
| ___ |
| for(;$i<32;$i++) { &NEON_16_79($i,@V); unshift(@V,pop(@V)); } |
| $code.=<<___; |
| bne .L16_79_neon |
| |
| vadd.i64 $A,d30 @ h+=Maj from the past |
| vldmia $ctx,{d24-d31} @ load context to temp |
| vadd.i64 q8,q12 @ vectorized accumulate |
| vadd.i64 q9,q13 |
| vadd.i64 q10,q14 |
| vadd.i64 q11,q15 |
| vstmia $ctx,{$A-$H} @ save context |
| teq $inp,$len |
| sub $Ktbl,#640 @ rewind K512 |
| bne .Loop_neon |
| |
| VFP_ABI_POP |
| ret @ bx lr |
| .size sha512_block_data_order_neon,.-sha512_block_data_order_neon |
| #endif |
| ___ |
| } |
| $code.=<<___; |
| .asciz "SHA512 block transform for ARMv4/NEON, CRYPTOGAMS by <appro\@openssl.org>" |
| .align 2 |
| #if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__) |
| .comm OPENSSL_armcap_P,4,4 |
| .hidden OPENSSL_armcap_P |
| #endif |
| ___ |
| |
| $code =~ s/\`([^\`]*)\`/eval $1/gem; |
| $code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 |
| $code =~ s/\bret\b/bx lr/gm; |
| |
| open SELF,$0; |
| while(<SELF>) { |
| next if (/^#!/); |
| last if (!s/^#/@/ and !/^$/); |
| print; |
| } |
| close SELF; |
| |
| print $code; |
| close STDOUT; # enforce flush |
