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#! /usr/bin/env perl
# Copyright 2015-2020 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the Apache License 2.0 (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
# $output is the last argument if it looks like a file (it has an extension)
# $flavour is the first argument if it doesn't look like a file
$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
$flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
( $xlate="${dir}perlasm/arm-xlate.pl" and -f $xlate) or
die "can't locate arm-xlate.pl";
open OUT,"| \"$^X\" $xlate $flavour \"$output\""
or die "can't call $xlate: $!";
*STDOUT=*OUT;
$code.=<<___;
#include "arm_arch.h"
#if defined(__thumb2__) && !defined(__APPLE__)
.syntax unified
.thumb
#else
.code 32
#undef __thumb2__
#endif
.text
.align 5
.global OPENSSL_atomic_add
.type OPENSSL_atomic_add,%function
OPENSSL_atomic_add:
#if __ARM_ARCH__>=6
.Ladd: ldrex r2,[r0]
add r3,r2,r1
strex r2,r3,[r0]
cmp r2,#0
bne .Ladd
mov r0,r3
bx lr
#else
stmdb sp!,{r4-r6,lr}
ldr r2,.Lspinlock
adr r3,.Lspinlock
mov r4,r0
mov r5,r1
add r6,r3,r2 @ &spinlock
b .+8
.Lspin: bl sched_yield
mov r0,#-1
swp r0,r0,[r6]
cmp r0,#0
bne .Lspin
ldr r2,[r4]
add r2,r2,r5
str r2,[r4]
str r0,[r6] @ release spinlock
ldmia sp!,{r4-r6,lr}
tst lr,#1
moveq pc,lr
.word 0xe12fff1e @ bx lr
#endif
.size OPENSSL_atomic_add,.-OPENSSL_atomic_add
.global OPENSSL_cleanse
.type OPENSSL_cleanse,%function
OPENSSL_cleanse:
eor ip,ip,ip
cmp r1,#7
#ifdef __thumb2__
itt hs
#endif
subhs r1,r1,#4
bhs .Lot
cmp r1,#0
beq .Lcleanse_done
.Little:
strb ip,[r0],#1
subs r1,r1,#1
bhi .Little
b .Lcleanse_done
.Lot: tst r0,#3
beq .Laligned
strb ip,[r0],#1
sub r1,r1,#1
b .Lot
.Laligned:
str ip,[r0],#4
subs r1,r1,#4
bhs .Laligned
adds r1,r1,#4
bne .Little
.Lcleanse_done:
#if __ARM_ARCH__>=5
bx lr
#else
tst lr,#1
moveq pc,lr
.word 0xe12fff1e @ bx lr
#endif
.size OPENSSL_cleanse,.-OPENSSL_cleanse
.global CRYPTO_memcmp
.type CRYPTO_memcmp,%function
.align 4
CRYPTO_memcmp:
eor ip,ip,ip
cmp r2,#0
beq .Lno_data
stmdb sp!,{r4,r5}
.Loop_cmp:
ldrb r4,[r0],#1
ldrb r5,[r1],#1
eor r4,r4,r5
orr ip,ip,r4
subs r2,r2,#1
bne .Loop_cmp
ldmia sp!,{r4,r5}
.Lno_data:
rsb r0,ip,#0
mov r0,r0,lsr#31
#if __ARM_ARCH__>=5
bx lr
#else
tst lr,#1
moveq pc,lr
.word 0xe12fff1e @ bx lr
#endif
.size CRYPTO_memcmp,.-CRYPTO_memcmp
#if __ARM_MAX_ARCH__>=7
.arch armv7-a
.fpu neon
.align 5
.global _armv7_neon_probe
.type _armv7_neon_probe,%function
_armv7_neon_probe:
vorr q0,q0,q0
bx lr
.size _armv7_neon_probe,.-_armv7_neon_probe
.global _armv7_tick
.type _armv7_tick,%function
_armv7_tick:
#ifdef __APPLE__
mrrc p15,0,r0,r1,c14 @ CNTPCT
#else
mrrc p15,1,r0,r1,c14 @ CNTVCT
#endif
bx lr
.size _armv7_tick,.-_armv7_tick
.global _armv8_aes_probe
.type _armv8_aes_probe,%function
_armv8_aes_probe:
#if defined(__thumb2__) && !defined(__APPLE__)
.byte 0xb0,0xff,0x00,0x03 @ aese.8 q0,q0
#else
.byte 0x00,0x03,0xb0,0xf3 @ aese.8 q0,q0
#endif
bx lr
.size _armv8_aes_probe,.-_armv8_aes_probe
.global _armv8_sha1_probe
.type _armv8_sha1_probe,%function
_armv8_sha1_probe:
#if defined(__thumb2__) && !defined(__APPLE__)
.byte 0x00,0xef,0x40,0x0c @ sha1c.32 q0,q0,q0
#else
.byte 0x40,0x0c,0x00,0xf2 @ sha1c.32 q0,q0,q0
#endif
bx lr
.size _armv8_sha1_probe,.-_armv8_sha1_probe
.global _armv8_sha256_probe
.type _armv8_sha256_probe,%function
_armv8_sha256_probe:
#if defined(__thumb2__) && !defined(__APPLE__)
.byte 0x00,0xff,0x40,0x0c @ sha256h.32 q0,q0,q0
#else
.byte 0x40,0x0c,0x00,0xf3 @ sha256h.32 q0,q0,q0
#endif
bx lr
.size _armv8_sha256_probe,.-_armv8_sha256_probe
.global _armv8_pmull_probe
.type _armv8_pmull_probe,%function
_armv8_pmull_probe:
#if defined(__thumb2__) && !defined(__APPLE__)
.byte 0xa0,0xef,0x00,0x0e @ vmull.p64 q0,d0,d0
#else
.byte 0x00,0x0e,0xa0,0xf2 @ vmull.p64 q0,d0,d0
#endif
bx lr
.size _armv8_pmull_probe,.-_armv8_pmull_probe
#endif
.global OPENSSL_wipe_cpu
.type OPENSSL_wipe_cpu,%function
OPENSSL_wipe_cpu:
#if __ARM_MAX_ARCH__>=7
ldr r0,.LOPENSSL_armcap
adr r1,.LOPENSSL_armcap
ldr r0,[r1,r0]
#ifdef __APPLE__
ldr r0,[r0]
#endif
#endif
eor r2,r2,r2
eor r3,r3,r3
eor ip,ip,ip
#if __ARM_MAX_ARCH__>=7
tst r0,#1
beq .Lwipe_done
veor q0, q0, q0
veor q1, q1, q1
veor q2, q2, q2
veor q3, q3, q3
veor q8, q8, q8
veor q9, q9, q9
veor q10, q10, q10
veor q11, q11, q11
veor q12, q12, q12
veor q13, q13, q13
veor q14, q14, q14
veor q15, q15, q15
.Lwipe_done:
#endif
mov r0,sp
#if __ARM_ARCH__>=5
bx lr
#else
tst lr,#1
moveq pc,lr
.word 0xe12fff1e @ bx lr
#endif
.size OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu
.global OPENSSL_instrument_bus
.type OPENSSL_instrument_bus,%function
OPENSSL_instrument_bus:
eor r0,r0,r0
#if __ARM_ARCH__>=5
bx lr
#else
tst lr,#1
moveq pc,lr
.word 0xe12fff1e @ bx lr
#endif
.size OPENSSL_instrument_bus,.-OPENSSL_instrument_bus
.global OPENSSL_instrument_bus2
.type OPENSSL_instrument_bus2,%function
OPENSSL_instrument_bus2:
eor r0,r0,r0
#if __ARM_ARCH__>=5
bx lr
#else
tst lr,#1
moveq pc,lr
.word 0xe12fff1e @ bx lr
#endif
.size OPENSSL_instrument_bus2,.-OPENSSL_instrument_bus2
.align 5
#if __ARM_MAX_ARCH__>=7
.LOPENSSL_armcap:
.word OPENSSL_armcap_P-.
#endif
#if __ARM_ARCH__>=6
.align 5
#else
.Lspinlock:
.word atomic_add_spinlock-.Lspinlock
.align 5
.data
.align 2
atomic_add_spinlock:
.word 0
#endif
.comm OPENSSL_armcap_P,4,4
.hidden OPENSSL_armcap_P
___
print $code;
close STDOUT or die "error closing STDOUT: $!";
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