linux-kernel - Re: [PATCH v2 03/16] elf, uapi: Add definition for DT_GNU

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Message-ID: <b59ffaa8-85ad-4e72-a2ae-dd878c5f3e36@arm.com>
Date: Fri, 28 Feb 2025 12:23:46 +0000
From: Vincenzo Frascino <vincenzo.frascino@....com>
To: Thomas Weißschuh <thomas.weissschuh@...utronix.de>,
 Kees Cook <kees@...nel.org>, Eric Biederman <ebiederm@...ssion.com>,
 Shuah Khan <shuah@...nel.org>, Nathan Chancellor <nathan@...nel.org>,
 Nick Desaulniers <ndesaulniers@...gle.com>, Bill Wendling
 <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>,
 Andy Lutomirski <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
 Willy Tarreau <w@....eu>, Thomas Weißschuh
 <linux@...ssschuh.net>
Cc: "Jason A. Donenfeld" <Jason@...c4.com>,
 Christophe Leroy <christophe.leroy@...roup.eu>, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
 llvm@...ts.linux.dev
Subject: Re: [PATCH v2 03/16] elf, uapi: Add definition for DT_GNU_HASH

On 26/02/2025 11:44, Thomas Weißschuh wrote:
> The definition is used by tools/testing/selftests/vDSO/parse_vdso.c.
> To be able to build the vDSO selftests without a libc dependency,
> add the define to the kernels own UAPI headers.
> 
> Link: https://refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/libc-ddefs.html
> Reviewed-by: Kees Cook <kees@...nel.org>
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
> ---
>  include/uapi/linux/elf.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
> index 448695c7364042b10682acc8223eb6053ad039dd..c5383cc7bb13c931fea083de5243c4006f795006 100644
> --- a/include/uapi/linux/elf.h
> +++ b/include/uapi/linux/elf.h
> @@ -107,6 +107,7 @@ typedef __s64	Elf64_Sxword;
>  #define DT_VALRNGLO	0x6ffffd00
>  #define DT_VALRNGHI	0x6ffffdff
>  #define DT_ADDRRNGLO	0x6ffffe00
> +#define DT_GNU_HASH	0x6ffffef5
>  #define DT_ADDRRNGHI	0x6ffffeff
>  #define DT_VERSYM	0x6ffffff0
>  #define DT_RELACOUNT	0x6ffffff9
> 

Reviewed-by: Vincenzo Frascino <vincenzo.frascino@....com>

-- 
Regards,
Vincenzo