xref: /freebsd/contrib/elftoolchain/libelf/_libelf_config.h (revision 7453645f2a9411a3f9d982b768bcc323f41cf906)
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 3400 2016-02-12 18:38:49Z emaste $
27  */
28 
29 #if defined(__APPLE__) || defined(__DragonFly__)
30 
31 #if	defined(__amd64__)
32 #define	LIBELF_ARCH		EM_X86_64
33 #define	LIBELF_BYTEORDER	ELFDATA2LSB
34 #define	LIBELF_CLASS		ELFCLASS64
35 #elif	defined(__i386__)
36 #define	LIBELF_ARCH		EM_386
37 #define	LIBELF_BYTEORDER	ELFDATA2LSB
38 #define	LIBELF_CLASS		ELFCLASS32
39 #endif
40 
41 #endif	/* __DragonFly__ */
42 
43 #ifdef __FreeBSD__
44 
45 /*
46  * Define LIBELF_{ARCH,BYTEORDER,CLASS} based on the machine architecture.
47  * See also: <machine/elf.h>.
48  */
49 
50 #if	defined(__amd64__)
51 
52 #define	LIBELF_ARCH		EM_X86_64
53 #define	LIBELF_BYTEORDER	ELFDATA2LSB
54 #define	LIBELF_CLASS		ELFCLASS64
55 
56 #elif	defined(__aarch64__)
57 
58 #define	LIBELF_ARCH		EM_AARCH64
59 #define	LIBELF_BYTEORDER	ELFDATA2LSB
60 #define	LIBELF_CLASS		ELFCLASS64
61 
62 #elif	defined(__arm__)
63 
64 #define	LIBELF_ARCH		EM_ARM
65 #if	defined(__ARMEB__)	/* Big-endian ARM. */
66 #define	LIBELF_BYTEORDER	ELFDATA2MSB
67 #else
68 #define	LIBELF_BYTEORDER	ELFDATA2LSB
69 #endif
70 #define	LIBELF_CLASS		ELFCLASS32
71 
72 #elif	defined(__i386__)
73 
74 #define	LIBELF_ARCH		EM_386
75 #define	LIBELF_BYTEORDER	ELFDATA2LSB
76 #define	LIBELF_CLASS		ELFCLASS32
77 
78 #elif	defined(__ia64__)
79 
80 #define	LIBELF_ARCH		EM_IA_64
81 #define	LIBELF_BYTEORDER	ELFDATA2LSB
82 #define	LIBELF_CLASS		ELFCLASS64
83 
84 #elif	defined(__mips__)
85 
86 #define	LIBELF_ARCH		EM_MIPS
87 #if	defined(__MIPSEB__)
88 #define	LIBELF_BYTEORDER	ELFDATA2MSB
89 #else
90 #define	LIBELF_BYTEORDER	ELFDATA2LSB
91 #endif
92 #define	LIBELF_CLASS		ELFCLASS32
93 
94 #elif	defined(__powerpc__)
95 
96 #define	LIBELF_ARCH		EM_PPC
97 #define	LIBELF_BYTEORDER	ELFDATA2MSB
98 #define	LIBELF_CLASS		ELFCLASS32
99 
100 #elif	defined(__riscv64)
101 
102 #define	LIBELF_ARCH		EM_RISCV
103 #define	LIBELF_BYTEORDER	ELFDATA2LSB
104 #define	LIBELF_CLASS		ELFCLASS64
105 
106 #elif	defined(__sparc__)
107 
108 #define	LIBELF_ARCH		EM_SPARCV9
109 #define	LIBELF_BYTEORDER	ELFDATA2MSB
110 #define	LIBELF_CLASS		ELFCLASS64
111 
112 #else
113 #error	Unknown FreeBSD architecture.
114 #endif
115 #endif  /* __FreeBSD__ */
116 
117 /*
118  * Definitions for Minix3.
119  */
120 #ifdef __minix
121 
122 #define	LIBELF_ARCH		EM_386
123 #define	LIBELF_BYTEORDER	ELFDATA2LSB
124 #define	LIBELF_CLASS		ELFCLASS32
125 
126 #endif	/* __minix */
127 
128 #ifdef __NetBSD__
129 
130 #include <machine/elf_machdep.h>
131 
132 #if	!defined(ARCH_ELFSIZE)
133 #error	ARCH_ELFSIZE is not defined.
134 #endif
135 
136 #if	ARCH_ELFSIZE == 32
137 #define	LIBELF_ARCH		ELF32_MACHDEP_ID
138 #define	LIBELF_BYTEORDER	ELF32_MACHDEP_ENDIANNESS
139 #define	LIBELF_CLASS		ELFCLASS32
140 #define	Elf_Note		Elf32_Nhdr
141 #else
142 #define	LIBELF_ARCH		ELF64_MACHDEP_ID
143 #define	LIBELF_BYTEORDER	ELF64_MACHDEP_ENDIANNESS
144 #define	LIBELF_CLASS		ELFCLASS64
145 #define	Elf_Note		Elf64_Nhdr
146 #endif
147 
148 #endif	/* __NetBSD__ */
149 
150 #if defined(__OpenBSD__)
151 
152 #include <machine/exec.h>
153 
154 #define	LIBELF_ARCH		ELF_TARG_MACH
155 #define	LIBELF_BYTEORDER	ELF_TARG_DATA
156 #define	LIBELF_CLASS		ELF_TARG_CLASS
157 
158 #endif
159 
160 /*
161  * GNU & Linux compatibility.
162  *
163  * `__linux__' is defined in an environment runs the Linux kernel and glibc.
164  * `__GNU__' is defined in an environment runs a GNU kernel (Hurd) and glibc.
165  * `__GLIBC__' is defined for an environment that runs glibc over a non-GNU
166  *     kernel such as GNU/kFreeBSD.
167  */
168 
169 #if defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)
170 
171 #if defined(__linux__)
172 
173 #include "native-elf-format.h"
174 
175 #define	LIBELF_CLASS		ELFTC_CLASS
176 #define	LIBELF_ARCH		ELFTC_ARCH
177 #define	LIBELF_BYTEORDER	ELFTC_BYTEORDER
178 
179 #endif	/* defined(__linux__) */
180 
181 #if	LIBELF_CLASS == ELFCLASS32
182 #define	Elf_Note		Elf32_Nhdr
183 #elif   LIBELF_CLASS == ELFCLASS64
184 #define	Elf_Note		Elf64_Nhdr
185 #else
186 #error  LIBELF_CLASS needs to be one of ELFCLASS32 or ELFCLASS64
187 #endif
188 
189 #endif /* defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) */
190