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https://github.com/guanzhi/GmSSL.git
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Merge remote-tracking branch 'origin/master'
# Conflicts: # README.md
This commit is contained in:
Zhi Guan
@@ -1,4 +1,11 @@
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#!/usr/bin/env perl
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#! /usr/bin/env perl
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# Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the OpenSSL license (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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#
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# ====================================================================
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# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
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@@ -42,10 +49,10 @@
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# below and combine it with reduction algorithm from x86 module.
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# Performance improvement over previous version varies from 65% on
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# Snapdragon S4 to 110% on Cortex A9. In absolute terms Cortex A8
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# processes one byte in 8.45 cycles, A9 - in 10.2, Snapdragon S4 -
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# in 9.33.
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# processes one byte in 8.45 cycles, A9 - in 10.2, A15 - in 7.63,
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# Snapdragon S4 - in 9.33.
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#
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# Câmara, D.; Gouvêa, C. P. L.; López, J. & Dahab, R.: Fast Software
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# Câmara, D.; Gouvêa, C. P. L.; López, J. & Dahab, R.: Fast Software
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# Polynomial Multiplication on ARM Processors using the NEON Engine.
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#
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# http://conradoplg.cryptoland.net/files/2010/12/mocrysen13.pdf
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@@ -71,8 +78,20 @@
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# *native* byte order on current platform. See gcm128.c for working
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# example...
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while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
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open STDOUT,">$output";
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$flavour = shift;
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if ($flavour=~/\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
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else { while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {} }
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if ($flavour && $flavour ne "void") {
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
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die "can't locate arm-xlate.pl";
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open STDOUT,"| \"$^X\" $xlate $flavour $output";
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} else {
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open STDOUT,">$output";
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}
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$Xi="r0"; # argument block
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$Htbl="r1";
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@@ -124,7 +143,19 @@ $code=<<___;
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#include "arm_arch.h"
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.text
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#if defined(__thumb2__) || defined(__clang__)
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.syntax unified
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#endif
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#if defined(__thumb2__)
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.thumb
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#else
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.code 32
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#endif
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#ifdef __clang__
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#define ldrplb ldrbpl
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#define ldrneb ldrbne
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#endif
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.type rem_4bit,%object
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.align 5
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@@ -137,19 +168,27 @@ rem_4bit:
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.type rem_4bit_get,%function
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rem_4bit_get:
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sub $rem_4bit,pc,#8
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sub $rem_4bit,$rem_4bit,#32 @ &rem_4bit
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#if defined(__thumb2__)
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adr $rem_4bit,rem_4bit
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#else
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sub $rem_4bit,pc,#8+32 @ &rem_4bit
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#endif
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b .Lrem_4bit_got
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nop
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nop
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.size rem_4bit_get,.-rem_4bit_get
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.global gcm_ghash_4bit
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.type gcm_ghash_4bit,%function
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.align 4
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gcm_ghash_4bit:
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sub r12,pc,#8
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#if defined(__thumb2__)
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adr r12,rem_4bit
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#else
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sub r12,pc,#8+48 @ &rem_4bit
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#endif
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add $len,$inp,$len @ $len to point at the end
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stmdb sp!,{r3-r11,lr} @ save $len/end too
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sub r12,r12,#48 @ &rem_4bit
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ldmia r12,{r4-r11} @ copy rem_4bit ...
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stmdb sp!,{r4-r11} @ ... to stack
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@@ -196,6 +235,9 @@ gcm_ghash_4bit:
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eor $Zlh,$Zlh,$Zhl,lsl#28
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ldrh $Tll,[sp,$nlo] @ rem_4bit[rem]
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eor $Zhl,$Thl,$Zhl,lsr#4
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#ifdef __thumb2__
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it pl
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#endif
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ldrplb $nlo,[$inp,$cnt]
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eor $Zhl,$Zhl,$Zhh,lsl#28
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eor $Zhh,$Thh,$Zhh,lsr#4
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@@ -206,6 +248,9 @@ gcm_ghash_4bit:
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add $nhi,$nhi,$nhi
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ldmia $Thh,{$Tll-$Thh} @ load Htbl[nhi]
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eor $Zll,$Tll,$Zll,lsr#4
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#ifdef __thumb2__
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it pl
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#endif
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ldrplb $Tll,[$Xi,$cnt]
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eor $Zll,$Zll,$Zlh,lsl#28
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eor $Zlh,$Tlh,$Zlh,lsr#4
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@@ -213,8 +258,14 @@ gcm_ghash_4bit:
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eor $Zlh,$Zlh,$Zhl,lsl#28
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eor $Zhl,$Thl,$Zhl,lsr#4
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eor $Zhl,$Zhl,$Zhh,lsl#28
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#ifdef __thumb2__
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it pl
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#endif
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eorpl $nlo,$nlo,$Tll
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eor $Zhh,$Thh,$Zhh,lsr#4
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#ifdef __thumb2__
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itt pl
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#endif
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andpl $nhi,$nlo,#0xf0
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andpl $nlo,$nlo,#0x0f
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eor $Zhh,$Zhh,$Tlh,lsl#16 @ ^= rem_4bit[rem]
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@@ -224,7 +275,11 @@ gcm_ghash_4bit:
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add $inp,$inp,#16
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mov $nhi,$Zll
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___
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&Zsmash("cmp\t$inp,$len","ldrneb\t$nlo,[$inp,#15]");
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&Zsmash("cmp\t$inp,$len","\n".
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"#ifdef __thumb2__\n".
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" it ne\n".
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"#endif\n".
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" ldrneb $nlo,[$inp,#15]");
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$code.=<<___;
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bne .Louter
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@@ -282,6 +337,9 @@ gcm_gmult_4bit:
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eor $Zlh,$Zlh,$Zhl,lsl#28
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ldrh $Tll,[$rem_4bit,$nlo] @ rem_4bit[rem]
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eor $Zhl,$Thl,$Zhl,lsr#4
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#ifdef __thumb2__
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it pl
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#endif
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ldrplb $nlo,[$Xi,$cnt]
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eor $Zhl,$Zhl,$Zhh,lsl#28
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eor $Zhh,$Thh,$Zhh,lsr#4
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@@ -299,6 +357,9 @@ gcm_gmult_4bit:
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eor $Zhl,$Thl,$Zhl,lsr#4
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eor $Zhl,$Zhl,$Zhh,lsl#28
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eor $Zhh,$Thh,$Zhh,lsr#4
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#ifdef __thumb2__
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itt pl
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#endif
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andpl $nhi,$nlo,#0xf0
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andpl $nlo,$nlo,#0x0f
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eor $Zhh,$Zhh,$Tll,lsl#16 @ ^= rem_4bit[rem]
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@@ -373,9 +434,9 @@ $code.=<<___;
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.type gcm_init_neon,%function
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.align 4
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gcm_init_neon:
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vld1.64 $IN#hi,[r1,:64]! @ load H
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vld1.64 $IN#hi,[r1]! @ load H
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vmov.i8 $t0,#0xe1
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vld1.64 $IN#lo,[r1,:64]
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vld1.64 $IN#lo,[r1]
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vshl.i64 $t0#hi,#57
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vshr.u64 $t0#lo,#63 @ t0=0xc2....01
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vdup.8 $t1,$IN#hi[7]
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@@ -394,8 +455,8 @@ gcm_init_neon:
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.type gcm_gmult_neon,%function
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.align 4
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gcm_gmult_neon:
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vld1.64 $IN#hi,[$Xi,:64]! @ load Xi
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vld1.64 $IN#lo,[$Xi,:64]!
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vld1.64 $IN#hi,[$Xi]! @ load Xi
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vld1.64 $IN#lo,[$Xi]!
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vmov.i64 $k48,#0x0000ffffffffffff
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vldmia $Htbl,{$Hlo-$Hhi} @ load twisted H
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vmov.i64 $k32,#0x00000000ffffffff
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@@ -412,8 +473,8 @@ gcm_gmult_neon:
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.type gcm_ghash_neon,%function
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.align 4
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gcm_ghash_neon:
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vld1.64 $Xl#hi,[$Xi,:64]! @ load Xi
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vld1.64 $Xl#lo,[$Xi,:64]!
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vld1.64 $Xl#hi,[$Xi]! @ load Xi
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vld1.64 $Xl#lo,[$Xi]!
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vmov.i64 $k48,#0x0000ffffffffffff
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vldmia $Htbl,{$Hlo-$Hhi} @ load twisted H
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vmov.i64 $k32,#0x00000000ffffffff
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@@ -432,12 +493,12 @@ gcm_ghash_neon:
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veor $IN,$Xl @ inp^=Xi
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.Lgmult_neon:
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___
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&clmul64x64 ($Xl,$Hlo,"$IN#lo"); # H.lo·Xi.lo
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&clmul64x64 ($Xl,$Hlo,"$IN#lo"); # H.lo·Xi.lo
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$code.=<<___;
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veor $IN#lo,$IN#lo,$IN#hi @ Karatsuba pre-processing
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___
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&clmul64x64 ($Xm,$Hhl,"$IN#lo"); # (H.lo+H.hi)·(Xi.lo+Xi.hi)
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&clmul64x64 ($Xh,$Hhi,"$IN#hi"); # H.hi·Xi.hi
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&clmul64x64 ($Xm,$Hhl,"$IN#lo"); # (H.lo+H.hi)·(Xi.lo+Xi.hi)
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&clmul64x64 ($Xh,$Hhi,"$IN#hi"); # H.hi·Xi.hi
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$code.=<<___;
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veor $Xm,$Xm,$Xl @ Karatsuba post-processing
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veor $Xm,$Xm,$Xh
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@@ -468,8 +529,8 @@ $code.=<<___;
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vrev64.8 $Xl,$Xl
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#endif
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sub $Xi,#16
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vst1.64 $Xl#hi,[$Xi,:64]! @ write out Xi
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vst1.64 $Xl#lo,[$Xi,:64]
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vst1.64 $Xl#hi,[$Xi]! @ write out Xi
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vst1.64 $Xl#lo,[$Xi]
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ret @ bx lr
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.size gcm_ghash_neon,.-gcm_ghash_neon
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