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Subject[PATCH v6 25/33] arm64: crypto: Mark constant as data
Date
Use SYM_DATA_* macros to annotate data bytes in the middle of .text
sections.

For local symbols, ".L" prefix needs to be dropped as the assembler
exclude the symbols from the .o symbol table, making objtool unable
to see them.

Signed-off-by: Julien Thierry <jthierry@redhat.com>
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
---
arch/arm64/crypto/aes-neonbs-core.S | 14 +++++++-------
arch/arm64/crypto/poly1305-armv8.pl | 4 ++++
arch/arm64/crypto/sha512-armv8.pl | 24 ++++++++++++++----------
3 files changed, 25 insertions(+), 17 deletions(-)

diff --git a/arch/arm64/crypto/aes-neonbs-core.S b/arch/arm64/crypto/aes-neonbs-core.S
index d427f4556b6e..fa161d1bf264 100644
--- a/arch/arm64/crypto/aes-neonbs-core.S
+++ b/arch/arm64/crypto/aes-neonbs-core.S
@@ -367,15 +367,15 @@


.align 6
-M0: .octa 0x0004080c0105090d02060a0e03070b0f
+SYM_DATA_LOCAL(M0, .octa 0x0004080c0105090d02060a0e03070b0f)

-M0SR: .octa 0x0004080c05090d010a0e02060f03070b
-SR: .octa 0x0f0e0d0c0a09080b0504070600030201
-SRM0: .octa 0x01060b0c0207080d0304090e00050a0f
+SYM_DATA_LOCAL(M0SR, .octa 0x0004080c05090d010a0e02060f03070b)
+SYM_DATA_LOCAL(SR, .octa 0x0f0e0d0c0a09080b0504070600030201)
+SYM_DATA_LOCAL(SRM0, .octa 0x01060b0c0207080d0304090e00050a0f)

-M0ISR: .octa 0x0004080c0d0105090a0e0206070b0f03
-ISR: .octa 0x0f0e0d0c080b0a090504070602010003
-ISRM0: .octa 0x0306090c00070a0d01040b0e0205080f
+SYM_DATA_LOCAL(M0ISR, .octa 0x0004080c0d0105090a0e0206070b0f03)
+SYM_DATA_LOCAL(ISR, .octa 0x0f0e0d0c080b0a090504070602010003)
+SYM_DATA_LOCAL(ISRM0, .octa 0x0306090c00070a0d01040b0e0205080f)

/*
* void aesbs_convert_key(u8 out[], u32 const rk[], int rounds)
diff --git a/arch/arm64/crypto/poly1305-armv8.pl b/arch/arm64/crypto/poly1305-armv8.pl
index cbc980fb02e3..f460f33c127a 100644
--- a/arch/arm64/crypto/poly1305-armv8.pl
+++ b/arch/arm64/crypto/poly1305-armv8.pl
@@ -47,6 +47,8 @@ my ($mac,$nonce)=($inp,$len);
my ($h0,$h1,$h2,$r0,$r1,$s1,$t0,$t1,$d0,$d1,$d2) = map("x$_",(4..14));

$code.=<<___;
+#include <linux/linkage.h>
+
#ifndef __KERNEL__
# include "arm_arch.h"
.extern OPENSSL_armcap_P
@@ -888,8 +890,10 @@ poly1305_blocks_neon:
.align 5
.Lzeros:
.long 0,0,0,0,0,0,0,0
+SYM_DATA_START_LOCAL(POLY1305_str)
.asciz "Poly1305 for ARMv8, CRYPTOGAMS by \@dot-asm"
.align 2
+SYM_DATA_END(POLY1305_str)
#if !defined(__KERNEL__) && !defined(_WIN64)
.comm OPENSSL_armcap_P,4,4
.hidden OPENSSL_armcap_P
diff --git a/arch/arm64/crypto/sha512-armv8.pl b/arch/arm64/crypto/sha512-armv8.pl
index 35ec9ae99fe1..1882c4110026 100644
--- a/arch/arm64/crypto/sha512-armv8.pl
+++ b/arch/arm64/crypto/sha512-armv8.pl
@@ -193,6 +193,8 @@ ___
}

$code.=<<___;
+#include <linux/linkage.h>
+
#ifndef __KERNEL__
# include "arm_arch.h"
#endif
@@ -208,11 +210,11 @@ ___
$code.=<<___ if ($SZ==4);
#ifndef __KERNEL__
# ifdef __ILP32__
- ldrsw x16,.LOPENSSL_armcap_P
+ ldrsw x16,OPENSSL_armcap_P_rel
# else
- ldr x16,.LOPENSSL_armcap_P
+ ldr x16,OPENSSL_armcap_P_rel
# endif
- adr x17,.LOPENSSL_armcap_P
+ adr x17,OPENSSL_armcap_P_rel
add x16,x16,x17
ldr w16,[x16]
tst w16,#ARMV8_SHA256
@@ -237,7 +239,7 @@ $code.=<<___;
ldp $E,$F,[$ctx,#4*$SZ]
add $num,$inp,$num,lsl#`log(16*$SZ)/log(2)` // end of input
ldp $G,$H,[$ctx,#6*$SZ]
- adr $Ktbl,.LK$BITS
+ adr $Ktbl,K$BITS
stp $ctx,$num,[x29,#96]

.Loop:
@@ -287,8 +289,7 @@ $code.=<<___;
.size $func,.-$func

.align 6
-.type .LK$BITS,%object
-.LK$BITS:
+SYM_DATA_START_LOCAL(K$BITS)
___
$code.=<<___ if ($SZ==8);
.quad 0x428a2f98d728ae22,0x7137449123ef65cd
@@ -353,18 +354,21 @@ $code.=<<___ if ($SZ==4);
.long 0 //terminator
___
$code.=<<___;
-.size .LK$BITS,.-.LK$BITS
+SYM_DATA_END(K$BITS)
#ifndef __KERNEL__
.align 3
-.LOPENSSL_armcap_P:
+SYM_DATA_START_LOCAL(OPENSSL_armcap_P_rel)
# ifdef __ILP32__
.long OPENSSL_armcap_P-.
# else
.quad OPENSSL_armcap_P-.
# endif
+SYM_DATA_END(OPENSSL_armcap_P_rel)
#endif
+SYM_DATA_START_LOCAL(OPENSSL_str)
.asciz "SHA$BITS block transform for ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
.align 2
+SYM_DATA_END(OPENSSL_str)
___

if ($SZ==4) {
@@ -385,7 +389,7 @@ sha256_block_armv8:
add x29,sp,#0

ld1.32 {$ABCD,$EFGH},[$ctx]
- adr $Ktbl,.LK256
+ adr $Ktbl,K256

.Loop_hw:
ld1 {@MSG[0]-@MSG[3]},[$inp],#64
@@ -648,7 +652,7 @@ sha256_block_neon:
mov x29, sp
sub sp,sp,#16*4

- adr $Ktbl,.LK256
+ adr $Ktbl,K256
add $num,$inp,$num,lsl#6 // len to point at the end of inp

ld1.8 {@X[0]},[$inp], #16
--
2.17.1
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