/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_MODULELOADER_H
#define _LINUX_MODULELOADER_H


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




int module_frob_arch_sections(Elf_Ehdr *hdr,
			      Elf_Shdr *sechdrs,
			      char *secstrings,
			      struct module *mod);


unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);


void *module_alloc(unsigned long size);


void module_memfree(void *module_region);


bool module_init_section(const char *name);


bool module_exit_section(const char *name);


bool module_init_layout_section(const char *sname);


#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",
	       module_name(me));
	return -ENOEXEC;
}
#endif


#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",
	       module_name(me));
	return -ENOEXEC;
}
#endif


int module_finalize(const Elf_Ehdr *hdr,
		    const Elf_Shdr *sechdrs,
		    struct module *mod);

#ifdef CONFIG_MODULES
void flush_module_init_free_work(void);
#else
static inline void flush_module_init_free_work(void)
{
}
#endif


void module_arch_cleanup(struct module *mod);


void module_arch_freeing_init(struct module *mod);

#if (defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) && \
		!defined(CONFIG_KASAN_VMALLOC)
#include <linux/kasan.h>
#define MODULE_ALIGN (PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
#else
#define MODULE_ALIGN PAGE_SIZE
#endif

#endif
