diff options
Diffstat (limited to 'crypto/modes/asm/ghash-armv4.pl')
| -rwxr-xr-x | crypto/modes/asm/ghash-armv4.pl | 101 |
1 files changed, 77 insertions, 24 deletions
diff --git a/crypto/modes/asm/ghash-armv4.pl b/crypto/modes/asm/ghash-armv4.pl index 8ccc963ef297..dcc23f7d7dbe 100755 --- a/crypto/modes/asm/ghash-armv4.pl +++ b/crypto/modes/asm/ghash-armv4.pl @@ -1,4 +1,11 @@ -#!/usr/bin/env perl +#! /usr/bin/env perl +# Copyright 2010-2018 The OpenSSL Project Authors. All Rights Reserved. +# +# Licensed under the OpenSSL license (the "License"). You may not use +# this file except in compliance with the License. You can obtain a copy +# in the file LICENSE in the source distribution or at +# https://www.openssl.org/source/license.html + # # ==================================================================== # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL @@ -42,12 +49,12 @@ # below and combine it with reduction algorithm from x86 module. # Performance improvement over previous version varies from 65% on # Snapdragon S4 to 110% on Cortex A9. In absolute terms Cortex A8 -# processes one byte in 8.45 cycles, A9 - in 10.2, Snapdragon S4 - -# in 9.33. +# processes one byte in 8.45 cycles, A9 - in 10.2, A15 - in 7.63, +# Snapdragon S4 - in 9.33. # # Câmara, D.; Gouvêa, C. P. L.; López, J. & Dahab, R.: Fast Software # Polynomial Multiplication on ARM Processors using the NEON Engine. -# +# # http://conradoplg.cryptoland.net/files/2010/12/mocrysen13.pdf # ==================================================================== @@ -71,8 +78,20 @@ # *native* byte order on current platform. See gcm128.c for working # example... -while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} -open STDOUT,">$output"; +$flavour = shift; +if ($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"; +} $Xi="r0"; # argument block $Htbl="r1"; @@ -124,11 +143,15 @@ $code=<<___; #include "arm_arch.h" .text +#if defined(__thumb2__) || defined(__clang__) +.syntax unified +#define ldrplb ldrbpl +#define ldrneb ldrbne +#endif +#if defined(__thumb2__) +.thumb +#else .code 32 - -#ifdef __clang__ -#define ldrplb ldrbpl -#define ldrneb ldrbne #endif .type rem_4bit,%object @@ -142,19 +165,27 @@ rem_4bit: .type rem_4bit_get,%function rem_4bit_get: - sub $rem_4bit,pc,#8 - sub $rem_4bit,$rem_4bit,#32 @ &rem_4bit +#if defined(__thumb2__) + adr $rem_4bit,rem_4bit +#else + sub $rem_4bit,pc,#8+32 @ &rem_4bit +#endif b .Lrem_4bit_got nop + nop .size rem_4bit_get,.-rem_4bit_get .global gcm_ghash_4bit .type gcm_ghash_4bit,%function +.align 4 gcm_ghash_4bit: - sub r12,pc,#8 +#if defined(__thumb2__) + adr r12,rem_4bit +#else + sub r12,pc,#8+48 @ &rem_4bit +#endif add $len,$inp,$len @ $len to point at the end stmdb sp!,{r3-r11,lr} @ save $len/end too - sub r12,r12,#48 @ &rem_4bit ldmia r12,{r4-r11} @ copy rem_4bit ... stmdb sp!,{r4-r11} @ ... to stack @@ -201,6 +232,9 @@ gcm_ghash_4bit: eor $Zlh,$Zlh,$Zhl,lsl#28 ldrh $Tll,[sp,$nlo] @ rem_4bit[rem] eor $Zhl,$Thl,$Zhl,lsr#4 +#ifdef __thumb2__ + it pl +#endif ldrplb $nlo,[$inp,$cnt] eor $Zhl,$Zhl,$Zhh,lsl#28 eor $Zhh,$Thh,$Zhh,lsr#4 @@ -211,6 +245,9 @@ gcm_ghash_4bit: add $nhi,$nhi,$nhi ldmia $Thh,{$Tll-$Thh} @ load Htbl[nhi] eor $Zll,$Tll,$Zll,lsr#4 +#ifdef __thumb2__ + it pl +#endif ldrplb $Tll,[$Xi,$cnt] eor $Zll,$Zll,$Zlh,lsl#28 eor $Zlh,$Tlh,$Zlh,lsr#4 @@ -218,8 +255,14 @@ gcm_ghash_4bit: eor $Zlh,$Zlh,$Zhl,lsl#28 eor $Zhl,$Thl,$Zhl,lsr#4 eor $Zhl,$Zhl,$Zhh,lsl#28 +#ifdef __thumb2__ + it pl +#endif eorpl $nlo,$nlo,$Tll eor $Zhh,$Thh,$Zhh,lsr#4 +#ifdef __thumb2__ + itt pl +#endif andpl $nhi,$nlo,#0xf0 andpl $nlo,$nlo,#0x0f eor $Zhh,$Zhh,$Tlh,lsl#16 @ ^= rem_4bit[rem] @@ -229,7 +272,11 @@ gcm_ghash_4bit: add $inp,$inp,#16 mov $nhi,$Zll ___ - &Zsmash("cmp\t$inp,$len","ldrneb\t$nlo,[$inp,#15]"); + &Zsmash("cmp\t$inp,$len","\n". + "#ifdef __thumb2__\n". + " it ne\n". + "#endif\n". + " ldrneb $nlo,[$inp,#15]"); $code.=<<___; bne .Louter @@ -287,6 +334,9 @@ gcm_gmult_4bit: eor $Zlh,$Zlh,$Zhl,lsl#28 ldrh $Tll,[$rem_4bit,$nlo] @ rem_4bit[rem] eor $Zhl,$Thl,$Zhl,lsr#4 +#ifdef __thumb2__ + it pl +#endif ldrplb $nlo,[$Xi,$cnt] eor $Zhl,$Zhl,$Zhh,lsl#28 eor $Zhh,$Thh,$Zhh,lsr#4 @@ -304,6 +354,9 @@ gcm_gmult_4bit: eor $Zhl,$Thl,$Zhl,lsr#4 eor $Zhl,$Zhl,$Zhh,lsl#28 eor $Zhh,$Thh,$Zhh,lsr#4 +#ifdef __thumb2__ + itt pl +#endif andpl $nhi,$nlo,#0xf0 andpl $nlo,$nlo,#0x0f eor $Zhh,$Zhh,$Tll,lsl#16 @ ^= rem_4bit[rem] @@ -378,9 +431,9 @@ $code.=<<___; .type gcm_init_neon,%function .align 4 gcm_init_neon: - vld1.64 $IN#hi,[r1,:64]! @ load H + vld1.64 $IN#hi,[r1]! @ load H vmov.i8 $t0,#0xe1 - vld1.64 $IN#lo,[r1,:64] + vld1.64 $IN#lo,[r1] vshl.i64 $t0#hi,#57 vshr.u64 $t0#lo,#63 @ t0=0xc2....01 vdup.8 $t1,$IN#hi[7] @@ -399,8 +452,8 @@ gcm_init_neon: .type gcm_gmult_neon,%function .align 4 gcm_gmult_neon: - vld1.64 $IN#hi,[$Xi,:64]! @ load Xi - vld1.64 $IN#lo,[$Xi,:64]! + vld1.64 $IN#hi,[$Xi]! @ load Xi + vld1.64 $IN#lo,[$Xi]! vmov.i64 $k48,#0x0000ffffffffffff vldmia $Htbl,{$Hlo-$Hhi} @ load twisted H vmov.i64 $k32,#0x00000000ffffffff @@ -417,8 +470,8 @@ gcm_gmult_neon: .type gcm_ghash_neon,%function .align 4 gcm_ghash_neon: - vld1.64 $Xl#hi,[$Xi,:64]! @ load Xi - vld1.64 $Xl#lo,[$Xi,:64]! + vld1.64 $Xl#hi,[$Xi]! @ load Xi + vld1.64 $Xl#lo,[$Xi]! vmov.i64 $k48,#0x0000ffffffffffff vldmia $Htbl,{$Hlo-$Hhi} @ load twisted H vmov.i64 $k32,#0x00000000ffffffff @@ -472,9 +525,9 @@ $code.=<<___; #ifdef __ARMEL__ vrev64.8 $Xl,$Xl #endif - sub $Xi,#16 - vst1.64 $Xl#hi,[$Xi,:64]! @ write out Xi - vst1.64 $Xl#lo,[$Xi,:64] + sub $Xi,#16 + vst1.64 $Xl#hi,[$Xi]! @ write out Xi + vst1.64 $Xl#lo,[$Xi] ret @ bx lr .size gcm_ghash_neon,.-gcm_ghash_neon |