[PATCH 3/8] LoongArch: Define ELF relocation types added in v2.00 ABI

From: Xi Ruoyao
Date: Sat Aug 27 2022 - 13:56:06 EST


These relocation types are used by GNU binutils >= 2.40 and GCC >= 13.
Add their definitions so we will be able to use them in later patches.

Link: https://github.com/loongson/LoongArch-Documentation/pull/57
Signed-off-by: Xi Ruoyao <xry111@xxxxxxxxxxx>
---
arch/loongarch/include/asm/elf.h | 37 ++++++++++++++++++++++++++++++++
arch/loongarch/kernel/module.c | 2 +-
2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/arch/loongarch/include/asm/elf.h b/arch/loongarch/include/asm/elf.h
index 5f3ff4781fda..7af0cebf28d7 100644
--- a/arch/loongarch/include/asm/elf.h
+++ b/arch/loongarch/include/asm/elf.h
@@ -74,6 +74,43 @@
#define R_LARCH_SUB64 56
#define R_LARCH_GNU_VTINHERIT 57
#define R_LARCH_GNU_VTENTRY 58
+#define R_LARCH_B16 64
+#define R_LARCH_B21 65
+#define R_LARCH_B26 66
+#define R_LARCH_ABS_HI20 67
+#define R_LARCH_ABS_LO12 68
+#define R_LARCH_ABS64_LO20 69
+#define R_LARCH_ABS64_HI12 70
+#define R_LARCH_PCALA_HI20 71
+#define R_LARCH_PCALA_LO12 72
+#define R_LARCH_PCALA64_LO20 73
+#define R_LARCH_PCALA64_HI12 74
+#define R_LARCH_GOT_PC_HI20 75
+#define R_LARCH_GOT_PC_LO12 76
+#define R_LARCH_GOT64_PC_LO20 77
+#define R_LARCH_GOT64_PC_HI12 78
+#define R_LARCH_GOT_HI20 79
+#define R_LARCH_GOT_LO12 80
+#define R_LARCH_GOT64_LO20 81
+#define R_LARCH_GOT64_HI12 82
+#define R_LARCH_TLS_LE_HI20 83
+#define R_LARCH_TLS_LE_LO12 84
+#define R_LARCH_TLS_LE64_LO20 85
+#define R_LARCH_TLS_LE64_HI12 86
+#define R_LARCH_TLS_IE_PC_HI20 87
+#define R_LARCH_TLS_IE_PC_LO12 88
+#define R_LARCH_TLS_IE64_PC_LO20 89
+#define R_LARCH_TLS_IE64_PC_HI12 90
+#define R_LARCH_TLS_IE_HI20 91
+#define R_LARCH_TLS_IE_LO12 92
+#define R_LARCH_TLS_IE64_LO20 93
+#define R_LARCH_TLS_IE64_HI12 94
+#define R_LARCH_TLS_LD_PC_HI20 95
+#define R_LARCH_TLS_LD_HI20 96
+#define R_LARCH_TLS_GD_PC_HI20 97
+#define R_LARCH_TLS_GD_HI20 98
+#define R_LARCH_32_PCREL 99
+#define R_LARCH_RELAX 100

#ifndef ELF_ARCH

diff --git a/arch/loongarch/kernel/module.c b/arch/loongarch/kernel/module.c
index 638427ff0d51..755d91ef8d85 100644
--- a/arch/loongarch/kernel/module.c
+++ b/arch/loongarch/kernel/module.c
@@ -296,7 +296,7 @@ typedef int (*reloc_rela_handler)(struct module *mod, u32 *location, Elf_Addr v,

/* The handlers for known reloc types */
static reloc_rela_handler reloc_rela_handlers[] = {
- [R_LARCH_NONE ... R_LARCH_SUB64] = apply_r_larch_error,
+ [R_LARCH_NONE ... R_LARCH_RELAX] = apply_r_larch_error,

[R_LARCH_NONE] = apply_r_larch_none,
[R_LARCH_32] = apply_r_larch_32,
--
2.37.0