1/*-
2 * Copyright (c) 2008-2011 Joseph Koshy
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $Id: _libelf_config.h 3764 2019-06-28 21:44:46Z emaste $
27 */
28
29#if defined(__APPLE__) || defined(__DragonFly__) || defined(__FreeBSD__)
30
31/*
32 * Define LIBELF_{ARCH,BYTEORDER,CLASS} based on the machine architecture.
33 * See also: <machine/elf.h> on FreeBSD.
34 */
35
36#if	defined(__amd64__)
37
38#define	LIBELF_ARCH		EM_X86_64
39#define	LIBELF_BYTEORDER	ELFDATA2LSB
40#define	LIBELF_CLASS		ELFCLASS64
41
42#elif	defined(__aarch64__)
43
44#define	LIBELF_ARCH		EM_AARCH64
45#define	LIBELF_BYTEORDER	ELFDATA2LSB
46#define	LIBELF_CLASS		ELFCLASS64
47
48#elif	defined(__arm__)
49
50#define	LIBELF_ARCH		EM_ARM
51#if	defined(__ARMEB__)	/* Big-endian ARM. */
52#define	LIBELF_BYTEORDER	ELFDATA2MSB
53#else
54#define	LIBELF_BYTEORDER	ELFDATA2LSB
55#endif
56#define	LIBELF_CLASS		ELFCLASS32
57
58#elif	defined(__i386__)
59
60#define	LIBELF_ARCH		EM_386
61#define	LIBELF_BYTEORDER	ELFDATA2LSB
62#define	LIBELF_CLASS		ELFCLASS32
63
64#elif	defined(__ia64__)
65
66#define	LIBELF_ARCH		EM_IA_64
67#define	LIBELF_BYTEORDER	ELFDATA2LSB
68#define	LIBELF_CLASS		ELFCLASS64
69
70#elif	defined(__mips__)
71
72#define	LIBELF_ARCH		EM_MIPS
73#if	defined(__MIPSEB__)
74#define	LIBELF_BYTEORDER	ELFDATA2MSB
75#else
76#define	LIBELF_BYTEORDER	ELFDATA2LSB
77#endif
78#define	LIBELF_CLASS		ELFCLASS32
79
80#elif	defined(__powerpc64__)
81
82#define	LIBELF_ARCH		EM_PPC64
83#if	__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
84#define	LIBELF_BYTEORDER	ELFDATA2LSB
85#else
86#define	LIBELF_BYTEORDER	ELFDATA2MSB
87#endif
88#define	LIBELF_CLASS		ELFCLASS64
89
90#elif	defined(__powerpc__)
91
92#define	LIBELF_ARCH		EM_PPC
93#define	LIBELF_BYTEORDER	ELFDATA2MSB
94#define	LIBELF_CLASS		ELFCLASS32
95
96#elif	defined(__riscv) && (__riscv_xlen == 64)
97
98#define	LIBELF_ARCH		EM_RISCV
99#define	LIBELF_BYTEORDER	ELFDATA2LSB
100#define	LIBELF_CLASS		ELFCLASS64
101
102#elif	defined(__riscv64)
103
104#define	LIBELF_ARCH		EM_RISCV
105#define	LIBELF_BYTEORDER	ELFDATA2LSB
106#define	LIBELF_CLASS		ELFCLASS64
107
108#elif	defined(__sparc__)
109
110#define	LIBELF_ARCH		EM_SPARCV9
111#define	LIBELF_BYTEORDER	ELFDATA2MSB
112#define	LIBELF_CLASS		ELFCLASS64
113
114#else
115#error	Unknown architecture.
116#endif
117#endif  /*  defined(__APPLE__) || defined(__DragonFly__) || defined(__FreeBSD__) */
118
119/*
120 * Definitions for Minix3.
121 */
122#ifdef __minix
123
124#define	LIBELF_ARCH		EM_386
125#define	LIBELF_BYTEORDER	ELFDATA2LSB
126#define	LIBELF_CLASS		ELFCLASS32
127
128#endif	/* __minix */
129
130#ifdef __NetBSD__
131
132#include <machine/elf_machdep.h>
133
134#if	!defined(ARCH_ELFSIZE)
135#error	ARCH_ELFSIZE is not defined.
136#endif
137
138#if	ARCH_ELFSIZE == 32
139#define	LIBELF_ARCH		ELF32_MACHDEP_ID
140#define	LIBELF_BYTEORDER	ELF32_MACHDEP_ENDIANNESS
141#define	LIBELF_CLASS		ELFCLASS32
142#define	Elf_Note		Elf32_Nhdr
143#else
144#define	LIBELF_ARCH		ELF64_MACHDEP_ID
145#define	LIBELF_BYTEORDER	ELF64_MACHDEP_ENDIANNESS
146#define	LIBELF_CLASS		ELFCLASS64
147#define	Elf_Note		Elf64_Nhdr
148#endif
149
150#endif	/* __NetBSD__ */
151
152#if defined(__OpenBSD__)
153
154#include <machine/exec.h>
155
156#define	LIBELF_ARCH		ELF_TARG_MACH
157#define	LIBELF_BYTEORDER	ELF_TARG_DATA
158#define	LIBELF_CLASS		ELF_TARG_CLASS
159
160#endif
161
162/*
163 * GNU & Linux compatibility.
164 *
165 * `__linux__' is defined in an environment runs the Linux kernel and glibc.
166 * `__GNU__' is defined in an environment runs a GNU kernel (Hurd) and glibc.
167 * `__GLIBC__' is defined for an environment that runs glibc over a non-GNU
168 *     kernel such as GNU/kFreeBSD.
169 */
170
171#if defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)
172
173#if defined(__linux__)
174
175#include "native-elf-format.h"
176
177#define	LIBELF_CLASS		ELFTC_CLASS
178#define	LIBELF_ARCH		ELFTC_ARCH
179#define	LIBELF_BYTEORDER	ELFTC_BYTEORDER
180
181#endif	/* defined(__linux__) */
182
183#if	LIBELF_CLASS == ELFCLASS32
184#define	Elf_Note		Elf32_Nhdr
185#elif   LIBELF_CLASS == ELFCLASS64
186#define	Elf_Note		Elf64_Nhdr
187#else
188#error  LIBELF_CLASS needs to be one of ELFCLASS32 or ELFCLASS64
189#endif
190
191#endif /* defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) */
192