[PATCH v15 02/10] ELF: Add LoongArch definitions

[Xiaotian Wu]

Add ELF e_machine ID [1] and relocations types [2] for LoongArch to
the current in-repo definitions.

[1]: 
https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html#_e_machine_identifies_the_machine
[2]: 
https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html#_relocations

Signed-off-by: Zhou Yang <zhouyang@loongson.cn>
Signed-off-by: Xiaotian Wu <wuxiaotian@loongson.cn>
---
 include/grub/elf.h | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/include/grub/elf.h b/include/grub/elf.h
index e6f073bc9..c36d7dab2 100644
--- a/include/grub/elf.h
+++ b/include/grub/elf.h
@@ -252,6 +252,7 @@ typedef struct
 #define EM_NUM         95
 #define EM_AARCH64     183             /* ARM 64-bit architecture */
 #define EM_RISCV       243             /* RISC-V */
+#define EM_LOONGARCH   258             /* LoongArch */
 
 /* If it is necessary to assign new unofficial EM_* values, please
    pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the
@@ -2536,6 +2537,28 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_RISCV_SET32           56
 #define R_RISCV_32_PCREL        57
 
+/* LoongArch relocations */
+#define R_LARCH_NONE                         0
+#define R_LARCH_64                           2
+#define R_LARCH_MARK_LA                              20
+#define R_LARCH_SOP_PUSH_PCREL               22
+#define R_LARCH_SOP_PUSH_ABSOLUTE            23
+#define R_LARCH_SOP_PUSH_PLT_PCREL           29
+#define R_LARCH_SOP_SUB                              32
+#define R_LARCH_SOP_SL                       33
+#define R_LARCH_SOP_SR                       34
+#define R_LARCH_SOP_ADD                              35
+#define R_LARCH_SOP_AND                              36
+#define R_LARCH_SOP_IF_ELSE                  37
+#define R_LARCH_SOP_POP_32_S_10_5            38
+#define R_LARCH_SOP_POP_32_U_10_12           39
+#define R_LARCH_SOP_POP_32_S_10_12           40
+#define R_LARCH_SOP_POP_32_S_10_16           41
+#define R_LARCH_SOP_POP_32_S_10_16_S2        42
+#define R_LARCH_SOP_POP_32_S_5_20            43
+#define R_LARCH_SOP_POP_32_S_0_5_10_16_S2     44
+#define R_LARCH_SOP_POP_32_S_0_10_10_16_S2    45
+
 extern grub_err_t grub_elf32_get_shnum (Elf32_Ehdr *e, Elf32_Shnum *shnum);
 extern grub_err_t grub_elf32_get_shstrndx (Elf32_Ehdr *e, Elf32_Word 
*shstrndx);
 extern grub_err_t grub_elf32_get_phnum (Elf32_Ehdr *e, Elf32_Word *phnum);
-- 
2.39.2