master
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 1996-1997 John D. Polstra.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _MACHINE_ELF_H_
30#define _MACHINE_ELF_H_ 1
31
32#if defined(__i386__) || defined(_MACHINE_ELF_WANT_32BIT)
33/* ELF definitions for the i386 architecture. */
34#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
35#if defined(__ELF_WORD_SIZE) && __ELF_WORD_SIZE == 64
36/* Definitions common to all 64 bit architectures. */
37#include <sys/elf64.h>
38#endif
39
40#ifndef __ELF_WORD_SIZE
41#define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */
42#endif
43
44#include <sys/elf_generic.h>
45
46#define ELF_ARCH EM_386
47
48#define ELF_MACHINE_OK(x) ((x) == EM_386 || (x) == EM_486)
49
50/*
51 * Auxiliary vector entries for passing information to the interpreter.
52 *
53 * The i386 supplement to the SVR4 ABI specification names this "auxv_t",
54 * but POSIX lays claim to all symbols ending with "_t".
55 */
56
57typedef struct { /* Auxiliary vector entry on initial stack */
58 int a_type; /* Entry type. */
59 union {
60 long a_val; /* Integer value. */
61 void *a_ptr; /* Address. */
62 void (*a_fcn)(void); /* Function pointer (not used). */
63 } a_un;
64} Elf32_Auxinfo;
65
66#if __ELF_WORD_SIZE == 64
67/* Fake for amd64 loader support */
68typedef struct {
69 int fake;
70} Elf64_Auxinfo;
71#endif
72
73__ElfType(Auxinfo);
74
75/*
76 * Relocation types.
77 */
78
79#define R_386_COUNT 38 /* Count of defined relocation types. */
80
81/* Define "machine" characteristics */
82#define ELF_TARG_CLASS ELFCLASS32
83#define ELF_TARG_DATA ELFDATA2LSB
84#define ELF_TARG_MACH EM_386
85#define ELF_TARG_VER 1
86
87#define ET_DYN_LOAD_ADDR 0x00002000
88
89#elif defined(__amd64__)
90
91/*
92 * ELF definitions for the AMD64 architecture.
93 */
94
95#ifndef __ELF_WORD_SIZE
96#define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */
97#endif
98#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
99#include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */
100#include <sys/elf_generic.h>
101
102#define ELF_ARCH EM_X86_64
103#define ELF_ARCH32 EM_386
104
105#define ELF_MACHINE_OK(x) ((x) == EM_X86_64)
106
107/*
108 * Auxiliary vector entries for passing information to the interpreter.
109 *
110 * The i386 supplement to the SVR4 ABI specification names this "auxv_t",
111 * but POSIX lays claim to all symbols ending with "_t".
112 */
113typedef struct { /* Auxiliary vector entry on initial stack */
114 int a_type; /* Entry type. */
115 union {
116 int a_val; /* Integer value. */
117 } a_un;
118} Elf32_Auxinfo;
119
120typedef struct { /* Auxiliary vector entry on initial stack */
121 long a_type; /* Entry type. */
122 union {
123 long a_val; /* Integer value. */
124 void *a_ptr; /* Address. */
125 void (*a_fcn)(void); /* Function pointer (not used). */
126 } a_un;
127} Elf64_Auxinfo;
128
129__ElfType(Auxinfo);
130
131/*
132 * Relocation types.
133 */
134
135#define R_X86_64_COUNT 24 /* Count of defined relocation types. */
136
137/* Define "machine" characteristics */
138#if __ELF_WORD_SIZE == 32
139#define ELF_TARG_CLASS ELFCLASS32
140#else
141#define ELF_TARG_CLASS ELFCLASS64
142#endif
143#define ELF_TARG_DATA ELFDATA2LSB
144#define ELF_TARG_MACH EM_X86_64
145#define ELF_TARG_VER 1
146
147#if __ELF_WORD_SIZE == 32
148#define ET_DYN_LOAD_ADDR 0x00002000
149#else
150#define ET_DYN_LOAD_ADDR 0x01021000
151#endif
152
153#endif /* __i386__, __amd64__ */
154
155#endif /* !_MACHINE_ELF_H_ */