1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_MODULE_H 3 #define _ASM_MODULE_H 4 5 #include <linux/list.h> 6 #include <linux/elf.h> 7 #include <asm/extable.h> 8 9 struct mod_arch_specific { 10 /* Data Bus Error exception tables */ 11 struct list_head dbe_list; 12 const struct exception_table_entry *dbe_start; 13 const struct exception_table_entry *dbe_end; 14 struct mips_hi16 *r_mips_hi16_list; 15 }; 16 17 typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */ 18 19 typedef struct { 20 Elf64_Addr r_offset; /* Address of relocation. */ 21 Elf64_Word r_sym; /* Symbol index. */ 22 Elf64_Byte r_ssym; /* Special symbol. */ 23 Elf64_Byte r_type3; /* Third relocation. */ 24 Elf64_Byte r_type2; /* Second relocation. */ 25 Elf64_Byte r_type; /* First relocation. */ 26 } Elf64_Mips_Rel; 27 28 typedef struct { 29 Elf64_Addr r_offset; /* Address of relocation. */ 30 Elf64_Word r_sym; /* Symbol index. */ 31 Elf64_Byte r_ssym; /* Special symbol. */ 32 Elf64_Byte r_type3; /* Third relocation. */ 33 Elf64_Byte r_type2; /* Second relocation. */ 34 Elf64_Byte r_type; /* First relocation. */ 35 Elf64_Sxword r_addend; /* Addend. */ 36 } Elf64_Mips_Rela; 37 38 #ifdef CONFIG_32BIT 39 #define Elf_Shdr Elf32_Shdr 40 #define Elf_Sym Elf32_Sym 41 #define Elf_Ehdr Elf32_Ehdr 42 #define Elf_Addr Elf32_Addr 43 #define Elf_Rel Elf32_Rel 44 #define Elf_Rela Elf32_Rela 45 #define ELF_R_TYPE(X) ELF32_R_TYPE(X) 46 #define ELF_R_SYM(X) ELF32_R_SYM(X) 47 48 #define Elf_Mips_Rel Elf32_Rel 49 #define Elf_Mips_Rela Elf32_Rela 50 51 #define ELF_MIPS_R_SYM(rel) ELF32_R_SYM((rel).r_info) 52 #define ELF_MIPS_R_TYPE(rel) ELF32_R_TYPE((rel).r_info) 53 54 #endif 55 56 #ifdef CONFIG_64BIT 57 #define Elf_Shdr Elf64_Shdr 58 #define Elf_Sym Elf64_Sym 59 #define Elf_Ehdr Elf64_Ehdr 60 #define Elf_Addr Elf64_Addr 61 #define Elf_Rel Elf64_Rel 62 #define Elf_Rela Elf64_Rela 63 #define ELF_R_TYPE(X) ELF64_R_TYPE(X) 64 #define ELF_R_SYM(X) ELF64_R_SYM(X) 65 66 #define Elf_Mips_Rel Elf64_Mips_Rel 67 #define Elf_Mips_Rela Elf64_Mips_Rela 68 69 #define ELF_MIPS_R_SYM(rel) ((rel).r_sym) 70 #define ELF_MIPS_R_TYPE(rel) ((rel).r_type) 71 72 #endif 73 74 #ifdef CONFIG_MODULES 75 /* Given an address, look for it in the exception tables. */ 76 const struct exception_table_entry*search_module_dbetables(unsigned long addr); 77 #else 78 /* Given an address, look for it in the exception tables. */ 79 static inline const struct exception_table_entry * search_module_dbetables(unsigned long addr)80search_module_dbetables(unsigned long addr) 81 { 82 return NULL; 83 } 84 #endif 85 86 #endif /* _ASM_MODULE_H */ 87