Contributors: 18
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Rusty Russell |
165 |
44.00% |
8 |
24.24% |
| David Howells |
40 |
10.67% |
1 |
3.03% |
| Linus Torvalds (pre-git) |
34 |
9.07% |
7 |
21.21% |
| Matthias Schiffer |
17 |
4.53% |
1 |
3.03% |
| David S. Miller |
16 |
4.27% |
1 |
3.03% |
| Helge Deller |
15 |
4.00% |
1 |
3.03% |
| Andrey Ryabinin |
15 |
4.00% |
2 |
6.06% |
| Chen Liqin |
14 |
3.73% |
1 |
3.03% |
| Daniel Axtens |
11 |
2.93% |
1 |
3.03% |
| James Morse |
10 |
2.67% |
1 |
3.03% |
| Andrey Konovalov |
9 |
2.40% |
2 |
6.06% |
| Song Liu |
9 |
2.40% |
1 |
3.03% |
| Nicholas Piggin |
9 |
2.40% |
1 |
3.03% |
| Andrew Morton |
4 |
1.07% |
1 |
3.03% |
| Vincent Whitchurch |
3 |
0.80% |
1 |
3.03% |
| Linus Torvalds |
2 |
0.53% |
1 |
3.03% |
| Jonas Bonn |
1 |
0.27% |
1 |
3.03% |
| Greg Kroah-Hartman |
1 |
0.27% |
1 |
3.03% |
| Total |
375 |
|
33 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#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.
*/
/* arch may override to do additional checking of ELF header architecture */
bool module_elf_check_arch(Elf_Ehdr *hdr);
/* 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_memfree(void *module_region);
/* Determines if the section name is an init section (that is only used during
* module loading).
*/
bool module_init_section(const char *name);
/* Determines if the section name is an exit section (that is only used during
* module unloading)
*/
bool module_exit_section(const char *name);
/* Describes whether within_module_init() will consider this an init section
* or not. This behaviour changes with CONFIG_MODULE_UNLOAD.
*/
bool module_init_layout_section(const char *sname);
/*
* 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",
module_name(me));
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);
#ifdef CONFIG_LIVEPATCH
/*
* Some architectures (namely x86_64 and ppc64) perform sanity checks when
* applying relocations. If a patched module gets unloaded and then later
* reloaded (and re-patched), klp re-applies relocations to the replacement
* function(s). Any leftover relocations from the previous loading of the
* patched module might trigger the sanity checks.
*
* To prevent that, when unloading a patched module, clear out any relocations
* that might trigger arch-specific sanity checks on a future module reload.
*/
void clear_relocate_add(Elf_Shdr *sechdrs,
const char *strtab,
unsigned int symindex,
unsigned int relsec,
struct module *me);
#endif
#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
/* 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);
/* Any cleanup before freeing mod->module_init */
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