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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001/* SPDX-License-Identifier: GPL-2.0 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002#ifndef _LINUX_ELF_H
3#define _LINUX_ELF_H
4
Linus Torvalds1da177e2005-04-16 15:20:36 -07005#include <asm/elf.h>
David Howells607ca462012-10-13 10:46:48 +01006#include <uapi/linux/elf.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -07007
David Howells267aed92011-12-12 13:54:36 +00008#ifndef elf_read_implies_exec
9 /* Executables for which elf_read_implies_exec() returns TRUE will
10 have the READ_IMPLIES_EXEC personality flag set automatically.
11 Override in asm/elf.h as needed. */
12# define elf_read_implies_exec(ex, have_pt_gnu_stack) 0
13#endif
Al Viroe72837e2013-02-17 17:47:04 -050014#ifndef SET_PERSONALITY
15#define SET_PERSONALITY(ex) \
16 set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
17#endif
David Howells267aed92011-12-12 13:54:36 +000018
Paul Burton774c1052014-09-11 08:30:16 +010019#ifndef SET_PERSONALITY2
20#define SET_PERSONALITY2(ex, state) \
21 SET_PERSONALITY(ex)
22#endif
23
Linus Torvalds1da177e2005-04-16 15:20:36 -070024#if ELF_CLASS == ELFCLASS32
25
26extern Elf32_Dyn _DYNAMIC [];
27#define elfhdr elf32_hdr
28#define elf_phdr elf32_phdr
Daisuke HATAYAMA8d9032b2010-03-05 13:44:10 -080029#define elf_shdr elf32_shdr
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#define elf_note elf32_note
Magnus Damm386d9a72006-12-06 20:37:53 -080031#define elf_addr_t Elf32_Off
Daisuke HATAYAMA1fcccba2010-03-05 13:44:07 -080032#define Elf_Half Elf32_Half
Hari Bathini51dbd922017-05-08 15:56:21 -070033#define Elf_Word Elf32_Word
Linus Torvalds1da177e2005-04-16 15:20:36 -070034
35#else
36
37extern Elf64_Dyn _DYNAMIC [];
38#define elfhdr elf64_hdr
39#define elf_phdr elf64_phdr
Daisuke HATAYAMA8d9032b2010-03-05 13:44:10 -080040#define elf_shdr elf64_shdr
Linus Torvalds1da177e2005-04-16 15:20:36 -070041#define elf_note elf64_note
Magnus Damm386d9a72006-12-06 20:37:53 -080042#define elf_addr_t Elf64_Off
Daisuke HATAYAMA1fcccba2010-03-05 13:44:07 -080043#define Elf_Half Elf64_Half
Hari Bathini51dbd922017-05-08 15:56:21 -070044#define Elf_Word Elf64_Word
Linus Torvalds1da177e2005-04-16 15:20:36 -070045
46#endif
47
Michael Ellermane5501492007-09-19 14:38:12 +100048/* Optional callbacks to write extra ELF notes. */
David Howells267aed92011-12-12 13:54:36 +000049struct file;
Al Virocdc3d562013-10-05 22:24:29 -040050struct coredump_params;
David Howells267aed92011-12-12 13:54:36 +000051
Dwayne Grant McConnellbf1ab972006-11-23 00:46:37 +010052#ifndef ARCH_HAVE_EXTRA_ELF_NOTES
Michael Ellermane5501492007-09-19 14:38:12 +100053static inline int elf_coredump_extra_notes_size(void) { return 0; }
Al Virocdc3d562013-10-05 22:24:29 -040054static inline int elf_coredump_extra_notes_write(struct coredump_params *cprm) { return 0; }
Michael Ellermane5501492007-09-19 14:38:12 +100055#else
56extern int elf_coredump_extra_notes_size(void);
Al Virocdc3d562013-10-05 22:24:29 -040057extern int elf_coredump_extra_notes_write(struct coredump_params *cprm);
Michael Ellermane5501492007-09-19 14:38:12 +100058#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070059#endif /* _LINUX_ELF_H */