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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 | |
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 | */ |
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 | |
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 | |
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 | /* |
32 | * Apply the given relocation to the (simplified) ELF. Return -error |
33 | * or 0. |
34 | */ |
35 | #ifdef CONFIG_MODULES_USE_ELF_REL |
36 | int apply_relocate(Elf_Shdr *sechdrs, |
37 | const char *strtab, |
38 | unsigned int symindex, |
39 | unsigned int relsec, |
40 | struct module *mod); |
41 | #else |
42 | static inline int apply_relocate(Elf_Shdr *sechdrs, |
43 | const char *strtab, |
44 | unsigned int symindex, |
45 | unsigned int relsec, |
46 | struct module *me) |
47 | { |
48 | printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name); |
49 | return -ENOEXEC; |
50 | } |
51 | #endif |
52 | |
53 | /* |
54 | * Apply the given add relocation to the (simplified) ELF. Return |
55 | * -error or 0 |
56 | */ |
57 | #ifdef CONFIG_MODULES_USE_ELF_RELA |
58 | int apply_relocate_add(Elf_Shdr *sechdrs, |
59 | const char *strtab, |
60 | unsigned int symindex, |
61 | unsigned int relsec, |
62 | struct module *mod); |
63 | #else |
64 | static inline int apply_relocate_add(Elf_Shdr *sechdrs, |
65 | const char *strtab, |
66 | unsigned int symindex, |
67 | unsigned int relsec, |
68 | struct module *me) |
69 | { |
70 | printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name); |
71 | return -ENOEXEC; |
72 | } |
73 | #endif |
74 | |
75 | /* Any final processing of module before access. Return -error or 0. */ |
76 | int module_finalize(const Elf_Ehdr *hdr, |
77 | const Elf_Shdr *sechdrs, |
78 | struct module *mod); |
79 | |
80 | /* Any cleanup needed when module leaves. */ |
81 | void module_arch_cleanup(struct module *mod); |
82 | |
83 | #endif |
84 |
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od-2011-09-18
v2.6.34-rc5
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