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1da177e4 LT |
1 | #ifndef _LINUX_MODULELOADER_H |
2 | #define _LINUX_MODULELOADER_H | |
3 | /* The stuff needed for archs to support modules. */ | |
4 | ||
5 | #include <linux/module.h> | |
6 | #include <linux/elf.h> | |
7 | ||
74e08fcf JB |
8 | /* These may be implemented by architectures that need to hook into the |
9 | * module loader code. Architectures that don't need to do anything special | |
10 | * can just rely on the 'weak' default hooks defined in kernel/module.c. | |
11 | * Note, however, that at least one of apply_relocate or apply_relocate_add | |
12 | * must be implemented by each architecture. | |
13 | */ | |
1da177e4 LT |
14 | |
15 | /* Adjust arch-specific sections. Return 0 on success. */ | |
16 | int module_frob_arch_sections(Elf_Ehdr *hdr, | |
17 | Elf_Shdr *sechdrs, | |
18 | char *secstrings, | |
19 | struct module *mod); | |
20 | ||
088af9a6 HD |
21 | /* Additional bytes needed by arch in front of individual sections */ |
22 | unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section); | |
23 | ||
1da177e4 LT |
24 | /* Allocator used for allocating struct module, core sections and init |
25 | sections. Returns NULL on failure. */ | |
26 | void *module_alloc(unsigned long size); | |
27 | ||
28 | /* Free memory returned from module_alloc. */ | |
29 | void module_free(struct module *mod, void *module_region); | |
30 | ||
31 | /* Apply the given relocation to the (simplified) ELF. Return -error | |
32 | or 0. */ | |
33 | int apply_relocate(Elf_Shdr *sechdrs, | |
34 | const char *strtab, | |
35 | unsigned int symindex, | |
36 | unsigned int relsec, | |
37 | struct module *mod); | |
38 | ||
39 | /* Apply the given add relocation to the (simplified) ELF. Return | |
40 | -error or 0 */ | |
41 | int apply_relocate_add(Elf_Shdr *sechdrs, | |
42 | const char *strtab, | |
43 | unsigned int symindex, | |
44 | unsigned int relsec, | |
45 | struct module *mod); | |
46 | ||
47 | /* Any final processing of module before access. Return -error or 0. */ | |
48 | int module_finalize(const Elf_Ehdr *hdr, | |
49 | const Elf_Shdr *sechdrs, | |
50 | struct module *mod); | |
51 | ||
52 | /* Any cleanup needed when module leaves. */ | |
53 | void module_arch_cleanup(struct module *mod); | |
54 | ||
55 | #endif |