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 /* 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 56