-#!/usr/bin/env perl
+#! /usr/bin/env perl
+# Copyright 2010-2016 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
# 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
+# 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
# *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";
#include "arm_arch.h"
.text
+#if defined(__thumb2__) || defined(__clang__)
+.syntax unified
+#endif
+#if defined(__thumb2__)
+.thumb
+#else
.code 32
+#endif
+
+#ifdef __clang__
+#define ldrplb ldrbpl
+#define ldrneb ldrbne
+#endif
.type rem_4bit,%object
.align 5
.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
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
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
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]
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
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
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]
.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]
.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
.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
veor $IN,$Xl @ inp^=Xi
.Lgmult_neon:
___
- &clmul64x64 ($Xl,$Hlo,"$IN#lo"); # H.lo·Xi.lo
+ &clmul64x64 ($Xl,$Hlo,"$IN#lo"); # H.lo·Xi.lo
$code.=<<___;
veor $IN#lo,$IN#lo,$IN#hi @ Karatsuba pre-processing
___
- &clmul64x64 ($Xm,$Hhl,"$IN#lo"); # (H.lo+H.hi)·(Xi.lo+Xi.hi)
- &clmul64x64 ($Xh,$Hhi,"$IN#hi"); # H.hi·Xi.hi
+ &clmul64x64 ($Xm,$Hhl,"$IN#lo"); # (H.lo+H.hi)·(Xi.lo+Xi.hi)
+ &clmul64x64 ($Xh,$Hhi,"$IN#hi"); # H.hi·Xi.hi
$code.=<<___;
veor $Xm,$Xm,$Xl @ Karatsuba post-processing
veor $Xm,$Xm,$Xh
vrev64.8 $Xl,$Xl
#endif
sub $Xi,#16
- vst1.64 $Xl#hi,[$Xi,:64]! @ write out Xi
- vst1.64 $Xl#lo,[$Xi,:64]
+ vst1.64 $Xl#hi,[$Xi]! @ write out Xi
+ vst1.64 $Xl#lo,[$Xi]
ret @ bx lr
.size gcm_ghash_neon,.-gcm_ghash_neon
projects / openssl.git / blobdiff