2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1996-1997 John D. Polstra.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
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31 #ifndef _MACHINE_ELF_H_
32 #define _MACHINE_ELF_H_ 1
34 #if defined(__i386__) || defined(_MACHINE_ELF_WANT_32BIT)
37 * ELF definitions for the i386 architecture.
40 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
41 #if defined(__ELF_WORD_SIZE) && __ELF_WORD_SIZE == 64
42 #include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */
45 #ifndef __ELF_WORD_SIZE
46 #define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */
49 #include <sys/elf_generic.h>
51 #define ELF_ARCH EM_386
53 #define ELF_MACHINE_OK(x) ((x) == EM_386 || (x) == EM_486)
56 * Auxiliary vector entries for passing information to the interpreter.
58 * The i386 supplement to the SVR4 ABI specification names this "auxv_t",
59 * but POSIX lays claim to all symbols ending with "_t".
62 typedef struct { /* Auxiliary vector entry on initial stack */
63 int a_type; /* Entry type. */
65 long a_val; /* Integer value. */
66 void *a_ptr; /* Address. */
67 void (*a_fcn)(void); /* Function pointer (not used). */
71 #if __ELF_WORD_SIZE == 64
72 /* Fake for amd64 loader support */
84 #define R_386_COUNT 38 /* Count of defined relocation types. */
86 /* Define "machine" characteristics */
87 #define ELF_TARG_CLASS ELFCLASS32
88 #define ELF_TARG_DATA ELFDATA2LSB
89 #define ELF_TARG_MACH EM_386
90 #define ELF_TARG_VER 1
92 #define ET_DYN_LOAD_ADDR 0x01001000
94 #elif defined(__amd64__)
97 * ELF definitions for the AMD64 architecture.
100 #ifndef __ELF_WORD_SIZE
101 #define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */
103 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
104 #include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */
105 #include <sys/elf_generic.h>
107 #define ELF_ARCH EM_X86_64
108 #define ELF_ARCH32 EM_386
110 #define ELF_MACHINE_OK(x) ((x) == EM_X86_64)
113 * Auxiliary vector entries for passing information to the interpreter.
115 * The i386 supplement to the SVR4 ABI specification names this "auxv_t",
116 * but POSIX lays claim to all symbols ending with "_t".
118 typedef struct { /* Auxiliary vector entry on initial stack */
119 int a_type; /* Entry type. */
121 int a_val; /* Integer value. */
126 typedef struct { /* Auxiliary vector entry on initial stack */
127 long a_type; /* Entry type. */
129 long a_val; /* Integer value. */
130 void *a_ptr; /* Address. */
131 void (*a_fcn)(void); /* Function pointer (not used). */
141 #define R_X86_64_COUNT 24 /* Count of defined relocation types. */
143 /* Define "machine" characteristics */
144 #if __ELF_WORD_SIZE == 32
145 #define ELF_TARG_CLASS ELFCLASS32
147 #define ELF_TARG_CLASS ELFCLASS64
149 #define ELF_TARG_DATA ELFDATA2LSB
150 #define ELF_TARG_MACH EM_X86_64
151 #define ELF_TARG_VER 1
153 #if __ELF_WORD_SIZE == 32
154 #define ET_DYN_LOAD_ADDR 0x01001000
156 #define ET_DYN_LOAD_ADDR 0x01021000
159 #endif /* __i386__, __amd64__ */
161 #endif /* !_MACHINE_ELF_H_ */