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 *
80 search_module_dbetables(unsigned long addr)
81 {
82 return NULL;
83 }
84 #endif
85
86 #endif /* _ASM_MODULE_H */
87
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.