From: Koakuma <koachan@protonmail.com>
Date: Mon, 9 Jun 2025 13:53:11 +0000 (+0700)
Subject: sparc/module: Add R_SPARC_UA64 relocation handling
X-Git-Tag: v5.4.302~87
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c38d95aa2ba7b10663c70c009023e43918a5429;p=thirdparty%2Fkernel%2Fstable.git

sparc/module: Add R_SPARC_UA64 relocation handling

[ Upstream commit 05457d96175d25c976ab6241c332ae2eb5e07833 ]

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>
Reviewed-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
index 7e078bc73ef56..d3dda47d0bc5a 100644
--- a/arch/sparc/include/asm/elf_64.h
+++ b/arch/sparc/include/asm/elf_64.h
@@ -59,6 +59,7 @@
 #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 df39580f398d3..737f7a5c28359 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -117,6 +117,7 @@ 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;