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Message-Id: <20250812-vdso-absolute-reloc-v4-6-61a8b615e5ec@linutronix.de>
Date: Tue, 12 Aug 2025 07:44:19 +0200
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Alexandre Ghiti <alex@...ti.fr>, Nathan Chancellor <nathan@...nel.org>, 
 Nick Desaulniers <nick.desaulniers+lkml@...il.com>, 
 Bill Wendling <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>, 
 Andy Lutomirski <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
 Vincenzo Frascino <vincenzo.frascino@....com>, Kees Cook <kees@...nel.org>, 
 Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
 Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
 "H. Peter Anvin" <hpa@...or.com>, Richard Weinberger <richard@....at>, 
 Anton Ivanov <anton.ivanov@...bridgegreys.com>, 
 Johannes Berg <johannes@...solutions.net>, 
 Russell King <linux@...linux.org.uk>, 
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, 
 Madhavan Srinivasan <maddy@...ux.ibm.com>, 
 Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>, 
 Christophe Leroy <christophe.leroy@...roup.eu>, 
 Huacai Chen <chenhuacai@...nel.org>, WANG Xuerui <kernel@...0n.name>, 
 Heiko Carstens <hca@...ux.ibm.com>, Vasily Gorbik <gor@...ux.ibm.com>, 
 Alexander Gordeev <agordeev@...ux.ibm.com>, 
 Christian Borntraeger <borntraeger@...ux.ibm.com>, 
 Sven Schnelle <svens@...ux.ibm.com>, 
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
 Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
 Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
 Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
 Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>, 
 Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>, 
 Danilo Krummrich <dakr@...nel.org>, 
 Nicolas Schier <nicolas.schier@...ux.dev>
Cc: linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 llvm@...ts.linux.dev, linux-mm@...ck.org, linux-um@...ts.infradead.org, 
 linux-arm-kernel@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org, 
 loongarch@...ts.linux.dev, linux-s390@...r.kernel.org, 
 linux-mips@...r.kernel.org, rust-for-linux@...r.kernel.org, 
 linux-kbuild@...r.kernel.org, Jan Stancek <jstancek@...hat.com>, 
 Arnaldo Carvalho de Melo <acme@...hat.com>, 
 Alexandre Ghiti <alexghiti@...osinc.com>, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH v4 06/24] riscv: elf: Move relocation constants to UAPI

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.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
---
 arch/riscv/include/uapi/asm/elf.h | 66 ---------------------------------------
 include/uapi/linux/elf-r.h        | 66 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+), 66 deletions(-)

diff --git a/arch/riscv/include/uapi/asm/elf.h b/arch/riscv/include/uapi/asm/elf.h
index 11a71b8533d5759ec724a8359d0ffa2a4f2e976d..05cf74a4a53579006a9cef1ed1dbff81d0e50c87 100644
--- a/arch/riscv/include/uapi/asm/elf.h
+++ b/arch/riscv/include/uapi/asm/elf.h
@@ -32,70 +32,4 @@ typedef union __riscv_fp_state elf_fpregset_t;
 #define ELF_RISCV_R_TYPE(r_info)	ELF32_R_TYPE(r_info)
 #endif
 
-/*
- * RISC-V relocation types
- */
-
-/* Relocation types used by the dynamic linker */
-#define R_RISCV_NONE		0
-#define R_RISCV_32		1
-#define R_RISCV_64		2
-#define R_RISCV_RELATIVE	3
-#define R_RISCV_COPY		4
-#define R_RISCV_JUMP_SLOT	5
-#define R_RISCV_TLS_DTPMOD32	6
-#define R_RISCV_TLS_DTPMOD64	7
-#define R_RISCV_TLS_DTPREL32	8
-#define R_RISCV_TLS_DTPREL64	9
-#define R_RISCV_TLS_TPREL32	10
-#define R_RISCV_TLS_TPREL64	11
-#define R_RISCV_IRELATIVE	58
-
-/* Relocation types not used by the dynamic linker */
-#define R_RISCV_BRANCH		16
-#define R_RISCV_JAL		17
-#define R_RISCV_CALL		18
-#define R_RISCV_CALL_PLT	19
-#define R_RISCV_GOT_HI20	20
-#define R_RISCV_TLS_GOT_HI20	21
-#define R_RISCV_TLS_GD_HI20	22
-#define R_RISCV_PCREL_HI20	23
-#define R_RISCV_PCREL_LO12_I	24
-#define R_RISCV_PCREL_LO12_S	25
-#define R_RISCV_HI20		26
-#define R_RISCV_LO12_I		27
-#define R_RISCV_LO12_S		28
-#define R_RISCV_TPREL_HI20	29
-#define R_RISCV_TPREL_LO12_I	30
-#define R_RISCV_TPREL_LO12_S	31
-#define R_RISCV_TPREL_ADD	32
-#define R_RISCV_ADD8		33
-#define R_RISCV_ADD16		34
-#define R_RISCV_ADD32		35
-#define R_RISCV_ADD64		36
-#define R_RISCV_SUB8		37
-#define R_RISCV_SUB16		38
-#define R_RISCV_SUB32		39
-#define R_RISCV_SUB64		40
-#define R_RISCV_GNU_VTINHERIT	41
-#define R_RISCV_GNU_VTENTRY	42
-#define R_RISCV_ALIGN		43
-#define R_RISCV_RVC_BRANCH	44
-#define R_RISCV_RVC_JUMP	45
-#define R_RISCV_GPREL_I		47
-#define R_RISCV_GPREL_S		48
-#define R_RISCV_TPREL_I		49
-#define R_RISCV_TPREL_S		50
-#define R_RISCV_RELAX		51
-#define R_RISCV_SUB6		52
-#define R_RISCV_SET6		53
-#define R_RISCV_SET8		54
-#define R_RISCV_SET16		55
-#define R_RISCV_SET32		56
-#define R_RISCV_32_PCREL	57
-#define R_RISCV_PLT32		59
-#define R_RISCV_SET_ULEB128	60
-#define R_RISCV_SUB_ULEB128	61
-
-
 #endif /* _UAPI_ASM_RISCV_ELF_H */
diff --git a/include/uapi/linux/elf-r.h b/include/uapi/linux/elf-r.h
index 0d0dfaa7c724d5f0230e5b7b9b713d8587030637..02e420c255df67f8f7e4bc3165f808b9935f5b1c 100644
--- a/include/uapi/linux/elf-r.h
+++ b/include/uapi/linux/elf-r.h
@@ -314,4 +314,70 @@
 /* Keep this the last entry.  */
 #define R_PPC64_NUM		253
 
+
+/*
+ * RISC-V relocation types
+ */
+
+/* Relocation types used by the dynamic linker */
+#define R_RISCV_NONE		0
+#define R_RISCV_32		1
+#define R_RISCV_64		2
+#define R_RISCV_RELATIVE	3
+#define R_RISCV_COPY		4
+#define R_RISCV_JUMP_SLOT	5
+#define R_RISCV_TLS_DTPMOD32	6
+#define R_RISCV_TLS_DTPMOD64	7
+#define R_RISCV_TLS_DTPREL32	8
+#define R_RISCV_TLS_DTPREL64	9
+#define R_RISCV_TLS_TPREL32	10
+#define R_RISCV_TLS_TPREL64	11
+#define R_RISCV_IRELATIVE	58
+
+/* Relocation types not used by the dynamic linker */
+#define R_RISCV_BRANCH		16
+#define R_RISCV_JAL		17
+#define R_RISCV_CALL		18
+#define R_RISCV_CALL_PLT	19
+#define R_RISCV_GOT_HI20	20
+#define R_RISCV_TLS_GOT_HI20	21
+#define R_RISCV_TLS_GD_HI20	22
+#define R_RISCV_PCREL_HI20	23
+#define R_RISCV_PCREL_LO12_I	24
+#define R_RISCV_PCREL_LO12_S	25
+#define R_RISCV_HI20		26
+#define R_RISCV_LO12_I		27
+#define R_RISCV_LO12_S		28
+#define R_RISCV_TPREL_HI20	29
+#define R_RISCV_TPREL_LO12_I	30
+#define R_RISCV_TPREL_LO12_S	31
+#define R_RISCV_TPREL_ADD	32
+#define R_RISCV_ADD8		33
+#define R_RISCV_ADD16		34
+#define R_RISCV_ADD32		35
+#define R_RISCV_ADD64		36
+#define R_RISCV_SUB8		37
+#define R_RISCV_SUB16		38
+#define R_RISCV_SUB32		39
+#define R_RISCV_SUB64		40
+#define R_RISCV_GNU_VTINHERIT	41
+#define R_RISCV_GNU_VTENTRY	42
+#define R_RISCV_ALIGN		43
+#define R_RISCV_RVC_BRANCH	44
+#define R_RISCV_RVC_JUMP	45
+#define R_RISCV_GPREL_I		47
+#define R_RISCV_GPREL_S		48
+#define R_RISCV_TPREL_I		49
+#define R_RISCV_TPREL_S		50
+#define R_RISCV_RELAX		51
+#define R_RISCV_SUB6		52
+#define R_RISCV_SET6		53
+#define R_RISCV_SET8		54
+#define R_RISCV_SET16		55
+#define R_RISCV_SET32		56
+#define R_RISCV_32_PCREL	57
+#define R_RISCV_PLT32		59
+#define R_RISCV_SET_ULEB128	60
+#define R_RISCV_SUB_ULEB128	61
+
 #endif /* _UAPI_LINUX_ELF_R_H */

-- 
2.50.1


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