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From: "Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
To: "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>,
	"Nick Desaulniers" <nick.desaulniers+lkml@gmail.com>,
	"Bill Wendling" <morbo@google.com>,
	"Justin Stitt" <justinstitt@google.com>,
	"Andy Lutomirski" <luto@kernel.org>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Vincenzo Frascino" <vincenzo.frascino@arm.com>,
	"Kees Cook" <kees@kernel.org>, "Ingo Molnar" <mingo@redhat.com>,
	"Borislav Petkov" <bp@alien8.de>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
	x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	"Richard Weinberger" <richard@nod.at>,
	"Anton Ivanov" <anton.ivanov@cambridgegreys.com>,
	"Johannes Berg" <johannes@sipsolutions.net>,
	"Russell King" <linux@armlinux.org.uk>,
	"Catalin Marinas" <catalin.marinas@arm.com>,
	"Will Deacon" <will@kernel.org>,
	"Madhavan Srinivasan" <maddy@linux.ibm.com>,
	"Michael Ellerman" <mpe@ellerman.id.au>,
	"Nicholas Piggin" <npiggin@gmail.com>,
	"Christophe Leroy" <christophe.leroy@csgroup.eu>,
	"Huacai Chen" <chenhuacai@kernel.org>,
	"WANG Xuerui" <kernel@xen0n.name>,
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	"Vasily Gorbik" <gor@linux.ibm.com>,
	"Alexander Gordeev" <agordeev@linux.ibm.com>,
	"Christian Borntraeger" <borntraeger@linux.ibm.com>,
	"Sven Schnelle" <svens@linux.ibm.com>,
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	"Miguel Ojeda" <ojeda@kernel.org>,
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	"Trevor Gross" <tmgross@umich.edu>,
	"Danilo Krummrich" <dakr@kernel.org>,
	"Nicolas Schier" <nicolas.schier@linux.dev>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
	llvm@lists.linux.dev, linux-mm@kvack.org,
	linux-um@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev,
	linux-s390@vger.kernel.org, linux-mips@vger.kernel.org,
	rust-for-linux@vger.kernel.org, linux-kbuild@vger.kernel.org,
	"Jan Stancek" <jstancek@redhat.com>,
	"Arnaldo Carvalho de Melo" <acme@redhat.com>,
	"Alexandre Ghiti" <alexghiti@rivosinc.com>,
	"Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
Subject: [PATCH v4 03/24] ARM: elf: Move relocation constants to UAPI
Date: Tue, 12 Aug 2025 07:44:16 +0200	[thread overview]
Message-ID: <20250812-vdso-absolute-reloc-v4-3-61a8b615e5ec@linutronix.de> (raw)
In-Reply-To: <20250812-vdso-absolute-reloc-v4-0-61a8b615e5ec@linutronix.de>

These constants are useful for cross-platform userspace, for example to
process ELF files during kernel cross-compilation.

Move them from the kernel-private architecture-specific header to the UAPI.

One arm64 header is also changed as it duplicates an arm definition.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
---
 arch/arm/include/asm/elf.h   | 24 ------------------------
 arch/arm64/include/asm/elf.h |  1 -
 include/uapi/linux/elf-r.h   | 25 +++++++++++++++++++++++++
 3 files changed, 25 insertions(+), 25 deletions(-)

diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
index 9f21e170320fc57f1dc21a33d637bcfd3d1d3917..ec2d416baa9f7ef4b860c4a18b2e2bf2f05e4a9d 100644
--- a/arch/arm/include/asm/elf.h
+++ b/arch/arm/include/asm/elf.h
@@ -47,30 +47,6 @@ typedef struct user_fp elf_fpregset_t;
 #define EF_ARM_HASENTRY		0x00000002	/* All */
 #define EF_ARM_RELEXEC		0x00000001	/* All */
 
-#define R_ARM_NONE		0
-#define R_ARM_PC24		1
-#define R_ARM_ABS32		2
-#define R_ARM_REL32		3
-#define R_ARM_CALL		28
-#define R_ARM_JUMP24		29
-#define R_ARM_TARGET1		38
-#define R_ARM_V4BX		40
-#define R_ARM_PREL31		42
-#define R_ARM_MOVW_ABS_NC	43
-#define R_ARM_MOVT_ABS		44
-#define R_ARM_MOVW_PREL_NC	45
-#define R_ARM_MOVT_PREL		46
-#define R_ARM_ALU_PC_G0_NC	57
-#define R_ARM_ALU_PC_G1_NC	59
-#define R_ARM_LDR_PC_G2		63
-
-#define R_ARM_THM_CALL		10
-#define R_ARM_THM_JUMP24	30
-#define R_ARM_THM_MOVW_ABS_NC	47
-#define R_ARM_THM_MOVT_ABS	48
-#define R_ARM_THM_MOVW_PREL_NC	49
-#define R_ARM_THM_MOVT_PREL	50
-
 /*
  * These are used to set parameters in the core dumps.
  */
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index 3f93f4eef9530a7b5bc966bf4a16d83093a016ee..8efcfe7efe0c70c59b9b81f93ac9c1442bc7656a 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -18,7 +18,6 @@
  */
 
 /* Miscellaneous. */
-#define R_ARM_NONE			0
 #define R_AARCH64_NONE			256
 
 /* Data. */
diff --git a/include/uapi/linux/elf-r.h b/include/uapi/linux/elf-r.h
index 45a160ecf40570f3ac916344be363d7e74908ea6..001884641e7703146f91e2dd96fb5a2bbfc7a324 100644
--- a/include/uapi/linux/elf-r.h
+++ b/include/uapi/linux/elf-r.h
@@ -36,4 +36,29 @@
 #define R_X86_64_PC8		15	/* 8 bit sign extended pc relative */
 #define R_X86_64_PC64		24	/* Place relative 64-bit signed */
 
+/* arm relocation types */
+#define R_ARM_NONE		0
+#define R_ARM_PC24		1
+#define R_ARM_ABS32		2
+#define R_ARM_REL32		3
+#define R_ARM_CALL		28
+#define R_ARM_JUMP24		29
+#define R_ARM_TARGET1		38
+#define R_ARM_V4BX		40
+#define R_ARM_PREL31		42
+#define R_ARM_MOVW_ABS_NC	43
+#define R_ARM_MOVT_ABS		44
+#define R_ARM_MOVW_PREL_NC	45
+#define R_ARM_MOVT_PREL		46
+#define R_ARM_ALU_PC_G0_NC	57
+#define R_ARM_ALU_PC_G1_NC	59
+#define R_ARM_LDR_PC_G2		63
+
+#define R_ARM_THM_CALL		10
+#define R_ARM_THM_JUMP24	30
+#define R_ARM_THM_MOVW_ABS_NC	47
+#define R_ARM_THM_MOVT_ABS	48
+#define R_ARM_THM_MOVW_PREL_NC	49
+#define R_ARM_THM_MOVT_PREL	50
+
 #endif /* _UAPI_LINUX_ELF_R_H */

-- 
2.50.1


  parent reply	other threads:[~2025-08-12  5:44 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-12  5:44 [PATCH v4 00/24] vdso: Reject absolute relocations during build Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 01/24] elf, uapi: Add a header for relocation constants Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 02/24] x86/elf, um/x86/elf: Move relocation constants to UAPI Thomas Weißschuh
2025-08-12  5:44 ` Thomas Weißschuh [this message]
2025-08-12  5:44 ` [PATCH v4 04/24] arm64: elf: " Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 05/24] powerpc/elf: " Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 06/24] riscv: elf: " Thomas Weißschuh
2025-08-15 15:05   ` Palmer Dabbelt
2025-08-12  5:44 ` [PATCH v4 07/24] LoongArch: " Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 08/24] s390/elf: " Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 09/24] MIPS: ELF: " Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 10/24] tools headers UAPI: Sync ELF headers with the kernel sources Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 11/24] vdso: Add the vdsocheck tool Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 12/24] x86/vdso: Enable " Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 13/24] ARM: vdso: " Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 14/24] arm64: " Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 15/24] powerpc/elf: Add 32-bit REL16 relocation definitions Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 16/24] powerpc/vdso: Enable the vdsocheck tool Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 17/24] riscv: vdso: Deduplicate CFLAGS_REMOVE_* variables Thomas Weißschuh
2025-08-15 15:07   ` Palmer Dabbelt
2025-08-12  5:44 ` [PATCH v4 18/24] riscv: vdso: Disable LTO for the vDSO Thomas Weißschuh
2025-08-15 15:07   ` Palmer Dabbelt
2025-08-12  5:44 ` [PATCH v4 19/24] riscv: vdso: Enable the vdsocheck tool Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 20/24] LoongArch: vDSO: " Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 21/24] s390/vdso: " Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 22/24] MIPS: ELF: Add more PC-relative relocation definitions Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 23/24] MIPS: vdso: Enable the vdsocheck tool Thomas Weißschuh
2025-08-12  5:44 ` [PATCH v4 24/24] vdso/vdsocheck: Drop the transitional kconfig option Thomas Weißschuh
2025-08-12 11:07 ` [PATCH v4 00/24] vdso: Reject absolute relocations during build Miguel Ojeda
2025-08-13  8:16   ` Thomas Weißschuh
2025-08-14 13:43 ` Christophe Leroy
2025-08-15 10:06   ` Thomas Weißschuh

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