projects/linux·blob master · refs

86 lines · 2.3 KiB

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
9struct 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
17typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
18
19typedef 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
28typedef 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. */
76const struct exception_table_entry*search_module_dbetables(unsigned long addr);
77#else
78/* Given an address, look for it in the exception tables. */
79static inline const struct exception_table_entry *
80search_module_dbetables(unsigned long addr)
81{
82 return NULL;
83}
84#endif
85
86#endif /* _ASM_MODULE_H */