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| author | Jia He <justin.he@arm.com> | 2024-08-06 08:54:44 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2024-08-17 08:55:49 +0300 |
| commit | 9369693a2c8f4832f6cdc8a94cc63cc7f7f9c96c (patch) | |
| tree | 3b72868f91f50da7566c457ca88d8059f69b13d6 | |
| parent | 18e2188c4b2069cf52c12344b47b4f7ac982f555 (diff) | |
| download | linux-9369693a2c8f4832f6cdc8a94cc63cc7f7f9c96c.tar.xz | |
crypto: arm64/poly1305 - move data to rodata section
When objtool gains support for ARM in the future, it may encounter issues
disassembling the following data in the .text section:
> .Lzeros:
> .long 0,0,0,0,0,0,0,0
> .asciz "Poly1305 for ARMv8, CRYPTOGAMS by \@dot-asm"
> .align 2
Move it to .rodata which is a more appropriate section for read-only data.
There is a limit on how far the label can be from the instruction, hence
use "adrp" and low 12bits offset of the label to avoid the compilation
error.
Signed-off-by: Jia He <justin.he@arm.com>
Tested-by: Daniel Gomez <da.gomez@samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | arch/arm64/crypto/poly1305-armv8.pl | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm64/crypto/poly1305-armv8.pl b/arch/arm64/crypto/poly1305-armv8.pl index cbc980fb02e3..22c9069c0650 100644 --- a/arch/arm64/crypto/poly1305-armv8.pl +++ b/arch/arm64/crypto/poly1305-armv8.pl @@ -473,7 +473,8 @@ poly1305_blocks_neon: subs $len,$len,#64 ldp x9,x13,[$inp,#48] add $in2,$inp,#96 - adr $zeros,.Lzeros + adrp $zeros,.Lzeros + add $zeros,$zeros,#:lo12:.Lzeros lsl $padbit,$padbit,#24 add x15,$ctx,#48 @@ -885,10 +886,13 @@ poly1305_blocks_neon: ret .size poly1305_blocks_neon,.-poly1305_blocks_neon +.pushsection .rodata .align 5 .Lzeros: .long 0,0,0,0,0,0,0,0 .asciz "Poly1305 for ARMv8, CRYPTOGAMS by \@dot-asm" +.popsection + .align 2 #if !defined(__KERNEL__) && !defined(_WIN64) .comm OPENSSL_armcap_P,4,4 |