1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
 
 
 
 
 4 */
 5
 6#ifndef __ASM_ARC_ELF_H
 7#define __ASM_ARC_ELF_H
 8
 9#include <linux/types.h>
10#include <linux/elf-em.h>
11#include <uapi/asm/elf.h>
12
13#define EM_ARC_INUSE		(IS_ENABLED(CONFIG_ISA_ARCOMPACT) ? \
14					EM_ARCOMPACT : EM_ARCV2)
15
16/* ARC Relocations (kernel Modules only) */
17#define  R_ARC_32		0x4
18#define  R_ARC_32_ME		0x1B
19#define  R_ARC_32_PCREL		0x31
 
20
21/*to set parameters in the core dumps */
22#define ELF_ARCH		EM_ARC_INUSE
23#define ELF_CLASS		ELFCLASS32
24
25#ifdef CONFIG_CPU_BIG_ENDIAN
26#define ELF_DATA		ELFDATA2MSB
27#else
28#define ELF_DATA		ELFDATA2LSB
29#endif
30
31/*
32 * To ensure that
33 *  -we don't load something for the wrong architecture.
34 *  -The userspace is using the correct syscall ABI
35 */
36struct elf32_hdr;
37extern int elf_check_arch(const struct elf32_hdr *);
38#define elf_check_arch	elf_check_arch
39
40#define CORE_DUMP_USE_REGSET
41
42#define ELF_EXEC_PAGESIZE	PAGE_SIZE
43
44/*
45 * This is the location that an ET_DYN program is loaded if exec'ed.  Typical
46 * use of this is to invoke "./ld.so someprog" to test out a new version of
47 * the loader.  We need to make sure that it is out of the way of the program
48 * that it will "exec", and that there is sufficient room for the brk.
49 */
50#define ELF_ET_DYN_BASE		(2UL * TASK_SIZE / 3)
51
52/*
53 * When the program starts, a1 contains a pointer to a function to be
54 * registered with atexit, as per the SVR4 ABI.  A value of 0 means we
55 * have no such handler.
56 */
57#define ELF_PLAT_INIT(_r, load_addr)	((_r)->r0 = 0)
58
59/*
60 * This yields a mask that user programs can use to figure out what
61 * instruction set this cpu supports.
62 */
63#define ELF_HWCAP	(0)
64
65/*
66 * This yields a string that ld.so will use to load implementation
67 * specific libraries for optimization.  This is more specific in
68 * intent than poking at uname or /proc/cpuinfo.
69 */
70#define ELF_PLATFORM	(NULL)
71
72#endif

 
 1/*
 2 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
 3 *
 4 * This program is free software; you can redistribute it and/or modify
 5 * it under the terms of the GNU General Public License version 2 as
 6 * published by the Free Software Foundation.
 7 */
 8
 9#ifndef __ASM_ARC_ELF_H
10#define __ASM_ARC_ELF_H
11
12#include <linux/types.h>
 
13#include <uapi/asm/elf.h>
14
15/* These ELF defines belong to uapi but libc elf.h already defines them */
16#define EM_ARCOMPACT		93
17
18/* ARC Relocations (kernel Modules only) */
19#define  R_ARC_32		0x4
20#define  R_ARC_32_ME		0x1B
21#define  R_ARC_S25H_PCREL	0x10
22#define  R_ARC_S25W_PCREL	0x11
23
24/*to set parameters in the core dumps */
25#define ELF_ARCH		EM_ARCOMPACT
26#define ELF_CLASS		ELFCLASS32
27
28#ifdef CONFIG_CPU_BIG_ENDIAN
29#define ELF_DATA		ELFDATA2MSB
30#else
31#define ELF_DATA		ELFDATA2LSB
32#endif
33
34/*
35 * To ensure that
36 *  -we don't load something for the wrong architecture.
37 *  -The userspace is using the correct syscall ABI
38 */
39struct elf32_hdr;
40extern int elf_check_arch(const struct elf32_hdr *);
41#define elf_check_arch	elf_check_arch
42
43#define CORE_DUMP_USE_REGSET
44
45#define ELF_EXEC_PAGESIZE	PAGE_SIZE
46
47/*
48 * This is the location that an ET_DYN program is loaded if exec'ed.  Typical
49 * use of this is to invoke "./ld.so someprog" to test out a new version of
50 * the loader.  We need to make sure that it is out of the way of the program
51 * that it will "exec", and that there is sufficient room for the brk.
52 */
53#define ELF_ET_DYN_BASE		(2 * TASK_SIZE / 3)
54
55/*
56 * When the program starts, a1 contains a pointer to a function to be
57 * registered with atexit, as per the SVR4 ABI.  A value of 0 means we
58 * have no such handler.
59 */
60#define ELF_PLAT_INIT(_r, load_addr)	((_r)->r0 = 0)
61
62/*
63 * This yields a mask that user programs can use to figure out what
64 * instruction set this cpu supports.
65 */
66#define ELF_HWCAP	(0)
67
68/*
69 * This yields a string that ld.so will use to load implementation
70 * specific libraries for optimization.  This is more specific in
71 * intent than poking at uname or /proc/cpuinfo.
72 */
73#define ELF_PLATFORM	(NULL)
74
75#endif