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Message-Id: <20250812-vdso-absolute-reloc-v4-8-61a8b615e5ec@linutronix.de>
Date: Tue, 12 Aug 2025 07:44:21 +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>,
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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 08/24] s390/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/s390/include/asm/elf.h | 83 ---------------------------------------------
include/uapi/linux/elf-r.h | 83 +++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 83 insertions(+), 83 deletions(-)
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index a03df312081ef93f95ab70ccb5a5d2bdf88d84ec..ce5306178ceaaa17afdaa1fbe4896d0125d1ab09 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -8,89 +8,6 @@
#ifndef __ASMS390_ELF_H
#define __ASMS390_ELF_H
-/* s390 relocations defined by the ABIs */
-#define R_390_NONE 0 /* No reloc. */
-#define R_390_8 1 /* Direct 8 bit. */
-#define R_390_12 2 /* Direct 12 bit. */
-#define R_390_16 3 /* Direct 16 bit. */
-#define R_390_32 4 /* Direct 32 bit. */
-#define R_390_PC32 5 /* PC relative 32 bit. */
-#define R_390_GOT12 6 /* 12 bit GOT offset. */
-#define R_390_GOT32 7 /* 32 bit GOT offset. */
-#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */
-#define R_390_COPY 9 /* Copy symbol at runtime. */
-#define R_390_GLOB_DAT 10 /* Create GOT entry. */
-#define R_390_JMP_SLOT 11 /* Create PLT entry. */
-#define R_390_RELATIVE 12 /* Adjust by program base. */
-#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */
-#define R_390_GOTPC 14 /* 32 bit PC rel. offset to GOT. */
-#define R_390_GOT16 15 /* 16 bit GOT offset. */
-#define R_390_PC16 16 /* PC relative 16 bit. */
-#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */
-#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */
-#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */
-#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */
-#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */
-#define R_390_64 22 /* Direct 64 bit. */
-#define R_390_PC64 23 /* PC relative 64 bit. */
-#define R_390_GOT64 24 /* 64 bit GOT offset. */
-#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */
-#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */
-#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */
-#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */
-#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */
-#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */
-#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */
-#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */
-#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */
-#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */
-#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */
-#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */
-#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */
-#define R_390_TLS_GDCALL 38 /* Tag for function call in general
- dynamic TLS code. */
-#define R_390_TLS_LDCALL 39 /* Tag for function call in local
- dynamic TLS code. */
-#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic
- thread local data. */
-#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic
- thread local data. */
-#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS
- block offset. */
-#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS
- block offset. */
-#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS
- block offset. */
-#define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic
- thread local data in LD code. */
-#define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic
- thread local data in LD code. */
-#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for
- negated static TLS block offset. */
-#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for
- negated static TLS block offset. */
-#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for
- negated static TLS block offset. */
-#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to
- static TLS block. */
-#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to
- static TLS block. */
-#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS
- block. */
-#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS
- block. */
-#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */
-#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */
-#define R_390_TLS_TPOFF 56 /* Negate offset in static TLS
- block. */
-#define R_390_20 57 /* Direct 20 bit. */
-#define R_390_GOT20 58 /* 20 bit GOT offset. */
-#define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */
-#define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS
- block offset. */
-/* Keep this the last entry. */
-#define R_390_NUM 61
-
/*
* HWCAP flags - for AT_HWCAP
*
diff --git a/include/uapi/linux/elf-r.h b/include/uapi/linux/elf-r.h
index 576d974db6e31f8a9cd995f7428c85bd41102415..c1309a63a7dc4495f22e3d8b51d3f97ab5809190 100644
--- a/include/uapi/linux/elf-r.h
+++ b/include/uapi/linux/elf-r.h
@@ -480,4 +480,87 @@
#define R_LARCH_SUB_ULEB128 108
#define R_LARCH_64_PCREL 109
+/* s390 relocations defined by the ABIs */
+#define R_390_NONE 0 /* No reloc. */
+#define R_390_8 1 /* Direct 8 bit. */
+#define R_390_12 2 /* Direct 12 bit. */
+#define R_390_16 3 /* Direct 16 bit. */
+#define R_390_32 4 /* Direct 32 bit. */
+#define R_390_PC32 5 /* PC relative 32 bit. */
+#define R_390_GOT12 6 /* 12 bit GOT offset. */
+#define R_390_GOT32 7 /* 32 bit GOT offset. */
+#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */
+#define R_390_COPY 9 /* Copy symbol at runtime. */
+#define R_390_GLOB_DAT 10 /* Create GOT entry. */
+#define R_390_JMP_SLOT 11 /* Create PLT entry. */
+#define R_390_RELATIVE 12 /* Adjust by program base. */
+#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */
+#define R_390_GOTPC 14 /* 32 bit PC rel. offset to GOT. */
+#define R_390_GOT16 15 /* 16 bit GOT offset. */
+#define R_390_PC16 16 /* PC relative 16 bit. */
+#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */
+#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */
+#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */
+#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */
+#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */
+#define R_390_64 22 /* Direct 64 bit. */
+#define R_390_PC64 23 /* PC relative 64 bit. */
+#define R_390_GOT64 24 /* 64 bit GOT offset. */
+#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */
+#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */
+#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */
+#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */
+#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */
+#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */
+#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */
+#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */
+#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */
+#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */
+#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */
+#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */
+#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */
+#define R_390_TLS_GDCALL 38 /* Tag for function call in general
+ dynamic TLS code. */
+#define R_390_TLS_LDCALL 39 /* Tag for function call in local
+ dynamic TLS code. */
+#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic
+ thread local data. */
+#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic
+ thread local data. */
+#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS
+ block offset. */
+#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS
+ block offset. */
+#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS
+ block offset. */
+#define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic
+ thread local data in LD code. */
+#define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic
+ thread local data in LD code. */
+#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for
+ negated static TLS block offset. */
+#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for
+ negated static TLS block offset. */
+#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for
+ negated static TLS block offset. */
+#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to
+ static TLS block. */
+#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to
+ static TLS block. */
+#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS
+ block. */
+#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS
+ block. */
+#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */
+#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */
+#define R_390_TLS_TPOFF 56 /* Negate offset in static TLS
+ block. */
+#define R_390_20 57 /* Direct 20 bit. */
+#define R_390_GOT20 58 /* 20 bit GOT offset. */
+#define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */
+#define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS
+ block offset. */
+/* Keep this the last entry. */
+#define R_390_NUM 61
+
#endif /* _UAPI_LINUX_ELF_R_H */
--
2.50.1
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