From: Koakuma via B4 Relay <devnull+koachan.protonmail.com@kernel.org>
To: "David S. Miller" <davem@davemloft.net>,
Andreas Larsson <andreas@gaisler.com>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <nick.desaulniers+lkml@gmail.com>,
Bill Wendling <morbo@google.com>,
Justin Stitt <justinstitt@google.com>
Cc: sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org,
llvm@lists.linux.dev, Koakuma <koachan@protonmail.com>
Subject: [PATCH 1/2] sparc/module: Add R_SPARC_UA64 relocation handling
Date: Mon, 09 Jun 2025 20:53:11 +0700 [thread overview]
Message-ID: <20250609-b4-sparc-relocs-v1-1-aa52631735af@protonmail.com> (raw)
In-Reply-To: <20250609-b4-sparc-relocs-v1-0-aa52631735af@protonmail.com>
From: Koakuma <koachan@protonmail.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@protonmail.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
next prev parent reply other threads:[~2025-06-09 13:53 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-09 13:53 [PATCH 0/2] sparc/module: R_SPARC_UA64 handling to help with LLVM IAS enablement Koakuma via B4 Relay
2025-06-09 13:53 ` Koakuma via B4 Relay [this message]
2025-08-03 1:15 ` [PATCH 1/2] sparc/module: Add R_SPARC_UA64 relocation handling Koakuma
2025-08-14 22:40 ` Nathan Chancellor
2025-08-15 9:30 ` Andreas Larsson
2025-08-18 16:17 ` Koakuma
2025-06-09 13:53 ` [PATCH 2/2] sparc/module: Make it clear that relocation numbers are shown in hex Koakuma via B4 Relay
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