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From d1d6c69b6fd25e71dbae67fad17b2c7737f6b2dc Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Sun, 5 Nov 2017 17:08:16 +0100
Subject: [PATCH] {aes-armv4|bsaes-armv7|sha256-armv4}.pl: make it work with
 binutils-2.29

It's not clear if it's a feature or bug, but binutils-2.29[.1]
interprets 'adr' instruction with Thumb2 code reference differently,
in a way that affects calculation of addresses of constants' tables.

Upstream-Status: Backport

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
(Merged from https://github.com/openssl/openssl/pull/4673)
---
 crypto/aes/asm/aes-armv4.pl    | 6 +++---
 crypto/aes/asm/bsaes-armv7.pl  | 6 +++---
 crypto/sha/asm/sha256-armv4.pl | 2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/crypto/aes/asm/aes-armv4.pl b/crypto/aes/asm/aes-armv4.pl
index 4f8917089f..c1b5e352d7 100644
--- a/crypto/aes/asm/aes-armv4.pl
+++ b/crypto/aes/asm/aes-armv4.pl
@@ -184,7 +184,7 @@ AES_encrypt:
 #if __ARM_ARCH__<7
 	sub	r3,pc,#8		@ AES_encrypt
 #else
-	adr	r3,AES_encrypt
+	adr	r3,.
 #endif
 	stmdb   sp!,{r1,r4-r12,lr}
 	mov	$rounds,r0		@ inp
@@ -430,7 +430,7 @@ _armv4_AES_set_encrypt_key:
 #if __ARM_ARCH__<7
 	sub	r3,pc,#8		@ AES_set_encrypt_key
 #else
-	adr	r3,private_AES_set_encrypt_key
+	adr	r3,.
 #endif
 	teq	r0,#0
 #if __ARM_ARCH__>=7
@@ -952,7 +952,7 @@ AES_decrypt:
 #if __ARM_ARCH__<7
 	sub	r3,pc,#8		@ AES_decrypt
 #else
-	adr	r3,AES_decrypt
+	adr	r3,.
 #endif
 	stmdb   sp!,{r1,r4-r12,lr}
 	mov	$rounds,r0		@ inp
diff --git a/crypto/aes/asm/bsaes-armv7.pl b/crypto/aes/asm/bsaes-armv7.pl
index 70b3f9656f..ec66b0502a 100644
--- a/crypto/aes/asm/bsaes-armv7.pl
+++ b/crypto/aes/asm/bsaes-armv7.pl
@@ -724,7 +724,7 @@ $code.=<<___;
 .type	_bsaes_decrypt8,%function
 .align	4
 _bsaes_decrypt8:
-	adr	$const,_bsaes_decrypt8
+	adr	$const,.
 	vldmia	$key!, {@XMM[9]}		@ round 0 key
 	add	$const,$const,#.LM0ISR-_bsaes_decrypt8
 
@@ -819,7 +819,7 @@ _bsaes_const:
 .type	_bsaes_encrypt8,%function
 .align	4
 _bsaes_encrypt8:
-	adr	$const,_bsaes_encrypt8
+	adr	$const,.
 	vldmia	$key!, {@XMM[9]}		@ round 0 key
 	sub	$const,$const,#_bsaes_encrypt8-.LM0SR
 
@@ -923,7 +923,7 @@ $code.=<<___;
 .type	_bsaes_key_convert,%function
 .align	4
 _bsaes_key_convert:
-	adr	$const,_bsaes_key_convert
+	adr	$const,.
 	vld1.8	{@XMM[7]},  [$inp]!		@ load round 0 key
 	sub	$const,$const,#_bsaes_key_convert-.LM0
 	vld1.8	{@XMM[15]}, [$inp]!		@ load round 1 key
diff --git a/crypto/sha/asm/sha256-armv4.pl b/crypto/sha/asm/sha256-armv4.pl
index 4fee74d832..750216eb42 100644
--- a/crypto/sha/asm/sha256-armv4.pl
+++ b/crypto/sha/asm/sha256-armv4.pl
@@ -205,7 +205,7 @@ sha256_block_data_order:
 #if __ARM_ARCH__<7
 	sub	r3,pc,#8		@ sha256_block_data_order
 #else
-	adr	r3,sha256_block_data_order
+	adr	r3,.
 #endif
 #if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__)
 	ldr	r12,.LOPENSSL_armcap
-- 
2.15.0