[sheepdog] [PATCH] lib: Remove executable stack comming from sha1_ssse3.S

[Liu Yuan]

On Thu, Feb 06, 2014 at 12:23:57PM +0100, Marcin Mirosław wrote:
> Executable stack can be security hole, EX stack prevents working of NX.
> More information can be found here:
> https://wiki.gentoo.org/wiki/Project:Hardened/GNU_stack_quickstart
> https://wiki.gentoo.org/wiki/Hardened/PaX_Utilities#Introduction
> 
> i686 architecture wasn't affected.
> 
> Signed-off-by: Marcin Mirosław <marcin at mejor.pl>
> ---
>  lib/sha1_ssse3.S | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/lib/sha1_ssse3.S b/lib/sha1_ssse3.S
> index 22ce597..a9ce142 100644
> --- a/lib/sha1_ssse3.S
> +++ b/lib/sha1_ssse3.S
> @@ -562,3 +562,7 @@ W_PRECALC_AVX
>   *                                     unsigned int rounds);
>   */
>  SHA1_VECTOR_ASM     sha1_transform_avx
> +
> +#if defined(__linux__) && defined(__ELF__)
> +.section .note.GNU-stack,"",%progbits
> +#endif
> -- 
> 1.8.3.2
> 
> -- 
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Applied thanks

Yuan