linux-kernel - Re: [PATCH 1/2] sparc/module: Add R_SPARC

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Message-ID: <L-bOu33R0ouNodufTRVlvyqOoz0SGuskQ_bqQ4X_xBkw91w4XmezvmkG0p6Ith-rsFIKYSkQWHUdMJ_G0lyYJhtg18c-mfWWjPKiI_Or6cE=@protonmail.com>
Date: Sun, 03 Aug 2025 01:15:02 +0000
From: Koakuma <koachan@...tonmail.com>
To: koachan@...tonmail.com
Cc: "David S. Miller" <davem@...emloft.net>, Andreas Larsson <andreas@...sler.com>, Nathan Chancellor <nathan@...nel.org>, Nick Desaulniers <nick.desaulniers+lkml@...il.com>, Bill Wendling <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>, sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH 1/2] sparc/module: Add R_SPARC_UA64 relocation handling

Koakuma via B4 Relay <devnull+koachan.protonmail.com@...nel.org> wrote:

> From: Koakuma koachan@...tonmail.com
> 
> 
> This is needed so that the kernel can handle R_SPARC_UA64 relocations,
> which is emitted by LLVM's IAS.
> 
> Signed-off-by: Koakuma koachan@...tonmail.com
> 
> ---
> arch/sparc/include/asm/elf_64.h | 1 +
> arch/sparc/kernel/module.c | 1 +
> 2 files changed, 2 insertions(+)
> 
> diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
> index 8fb09eec8c3e796a9a79aa0a7877842ceb7ea6d3..694ed081cf8d99adf70be25e5dc0e30a45f70398 100644
> --- a/arch/sparc/include/asm/elf_64.h
> +++ b/arch/sparc/include/asm/elf_64.h
> @@ -58,6 +58,7 @@
> #define R_SPARC_7 43
> #define R_SPARC_5 44
> #define R_SPARC_6 45
> +#define R_SPARC_UA64 54
> 
> /* Bits present in AT_HWCAP, primarily for Sparc32. */
> #define HWCAP_SPARC_FLUSH 0x00000001
> diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
> index b8c51cc23d96944037494f13d2d65a43bb187729..6e3d4dde4f9ab33040b300c40d5fd5d0584e166d 100644
> --- a/arch/sparc/kernel/module.c
> +++ b/arch/sparc/kernel/module.c
> @@ -87,6 +87,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
> break;
> #ifdef CONFIG_SPARC64
> case R_SPARC_64:
> + case R_SPARC_UA64:
> location[0] = v >> 56;
> 
> location[1] = v >> 48;
> 
> location[2] = v >> 40;
> 
> 
> --
> 2.49.0

Ping. Is there anything else I should do for this?