#ifndef _LINUX_MODULELOADER_H
#define _LINUX_MODULELOADER_H
/* The stuff needed for archs to support modules. */

#include <linux/module.h>
#include <linux/elf.h>

/* These may be implemented by architectures that need to hook into the
* module loader code. Architectures that don't need to do anything special
* can just rely on the 'weak' default hooks defined in kernel/module.c.
* Note, however, that at least one of apply_relocate or apply_relocate_add
* must be implemented by each architecture.
*/

/* Adjust arch-specific sections. Return 0 on success. */
int module_frob_arch_sections(Elf_Ehdr *hdr,
Elf_Shdr *sechdrs,
char *secstrings,
struct module *mod);

/* Additional bytes needed by arch in front of individual sections */
unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);

/* Allocator used for allocating struct module, core sections and init
sections. Returns NULL on failure. */
void *module_alloc(unsigned long size);

/* Free memory returned from module_alloc. */
void module_free(struct module *mod, void *module_region);

/*
* Apply the given relocation to the (simplified) ELF. Return -error
* or 0.
*/
#ifdef CONFIG_MODULES_USE_ELF_REL
int apply_relocate(Elf_Shdr *sechdrs,
const char *strtab,
unsigned int symindex,
unsigned int relsec,
struct module *mod);
#else
static inline int apply_relocate(Elf_Shdr *sechdrs,
const char *strtab,
unsigned int symindex,
unsigned int relsec,
struct module *me)
{
printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name);
return -ENOEXEC;
}
#endif

/*
* Apply the given add relocation to the (simplified) ELF. Return
* -error or 0
*/
#ifdef CONFIG_MODULES_USE_ELF_RELA
int apply_relocate_add(Elf_Shdr *sechdrs,
const char *strtab,
unsigned int symindex,
unsigned int relsec,
struct module *mod);
#else
static inline int apply_relocate_add(Elf_Shdr *sechdrs,
const char *strtab,
unsigned int symindex,
unsigned int relsec,
struct module *me)
{
printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name);
return -ENOEXEC;
}
#endif

/* Any final processing of module before access. Return -error or 0. */
int module_finalize(const Elf_Ehdr *hdr,
const Elf_Shdr *sechdrs,
struct module *mod);

/* Any cleanup needed when module leaves. */
void module_arch_cleanup(struct module *mod);

#endif