Re: [PATCH v5 16/24] powerpc/elf: Add 32-bit REL16 relocation definitions

From: "Christophe Leroy (CS GROUP)" <chleroy@kernel.org>
To: "Thomas Weißschuh" <thomas.weissschuh@linutronix.de>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Albert Ou" <aou@eecs.berkeley.edu>,
	"Alexandre Ghiti" <alex@ghiti.fr>,
	"Nathan Chancellor" <nathan@kernel.org>,
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	"Bill Wendling" <morbo@google.com>,
	"Justin Stitt" <justinstitt@google.com>,
	"Andy Lutomirski" <luto@kernel.org>,
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	"Kees Cook" <kees@kernel.org>, "Ingo Molnar" <mingo@redhat.com>,
	"Borislav Petkov" <bp@alien8.de>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
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Subject: Re: [PATCH v5 16/24] powerpc/elf: Add 32-bit REL16 relocation definitions
Date: Tue, 8 Sep 2026 11:21:20 +0200	[thread overview]
Message-ID: <9a27f318-2ab0-4f5e-8e87-daaa85dbc297@kernel.org> (raw)
In-Reply-To: <20260908-vdso-absolute-reloc-v5-16-3a93791af1cf@linutronix.de>


Le 08/09/2026 à 08:33, Thomas Weißschuh a écrit :
> These are used by userspace and are necessary for the vdsocheck tool.
> They share the numbers with their 64-bit variants.
> 
> Also update the copy in tools/ so they can be used by vdsocheck.
> 
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>

Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>

> ---
>   include/uapi/linux/elf-r.h       | 7 ++++++-
>   tools/include/uapi/linux/elf-r.h | 7 ++++++-
>   2 files changed, 12 insertions(+), 2 deletions(-)
> 
> diff --git a/include/uapi/linux/elf-r.h b/include/uapi/linux/elf-r.h
> index 72fc9045a5d4..170888422400 100644
> --- a/include/uapi/linux/elf-r.h
> +++ b/include/uapi/linux/elf-r.h
> @@ -182,8 +182,13 @@
>   #define R_PPC_GOT_DTPREL16_HI	93 /* half16*	(sym+add)@got@dtprel@h */
>   #define R_PPC_GOT_DTPREL16_HA	94 /* half16*	(sym+add)@got@dtprel@ha */
>   
> +#define R_PPC_REL16		249
> +#define R_PPC_REL16_LO		250
> +#define R_PPC_REL16_HI		251
> +#define R_PPC_REL16_HA		252
> +
>   /* keep this the last entry. */
> -#define R_PPC_NUM		95
> +#define R_PPC_NUM		253
>   
>   /* PowerPC64 relocations defined by the ABIs */
>   #define R_PPC64_NONE    R_PPC_NONE
> diff --git a/tools/include/uapi/linux/elf-r.h b/tools/include/uapi/linux/elf-r.h
> index 72fc9045a5d4..170888422400 100644
> --- a/tools/include/uapi/linux/elf-r.h
> +++ b/tools/include/uapi/linux/elf-r.h
> @@ -182,8 +182,13 @@
>   #define R_PPC_GOT_DTPREL16_HI	93 /* half16*	(sym+add)@got@dtprel@h */
>   #define R_PPC_GOT_DTPREL16_HA	94 /* half16*	(sym+add)@got@dtprel@ha */
>   
> +#define R_PPC_REL16		249
> +#define R_PPC_REL16_LO		250
> +#define R_PPC_REL16_HI		251
> +#define R_PPC_REL16_HA		252
> +
>   /* keep this the last entry. */
> -#define R_PPC_NUM		95
> +#define R_PPC_NUM		253
>   
>   /* PowerPC64 relocations defined by the ABIs */
>   #define R_PPC64_NONE    R_PPC_NONE
> 


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