/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 1996-1997 John D. Polstra.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _MACHINE_ELF_H_
#define _MACHINE_ELF_H_ 1
#if defined(__i386__) || defined(_MACHINE_ELF_WANT_32BIT)
/* ELF definitions for the i386 architecture. */
#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
#if defined(__ELF_WORD_SIZE) && __ELF_WORD_SIZE == 64
/* Definitions common to all 64 bit architectures. */
#include <sys/elf64.h>
#endif
#ifndef __ELF_WORD_SIZE
#define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */
#endif
#include <sys/elf_generic.h>
#define ELF_ARCH EM_386
#define ELF_MACHINE_OK(x) ((x) == EM_386 || (x) == EM_486)
/*
* Auxiliary vector entries for passing information to the interpreter.
*
* The i386 supplement to the SVR4 ABI specification names this "auxv_t",
* but POSIX lays claim to all symbols ending with "_t".
*/
typedef struct { /* Auxiliary vector entry on initial stack */
int a_type; /* Entry type. */
union {
long a_val; /* Integer value. */
void *a_ptr; /* Address. */
void (*a_fcn)(void); /* Function pointer (not used). */
} a_un;
} Elf32_Auxinfo;
#if __ELF_WORD_SIZE == 64
/* Fake for amd64 loader support */
typedef struct {
int fake;
} Elf64_Auxinfo;
#endif
__ElfType(Auxinfo);
/*
* Relocation types.
*/
#define R_386_COUNT 38 /* Count of defined relocation types. */
/* Define "machine" characteristics */
#define ELF_TARG_CLASS ELFCLASS32
#define ELF_TARG_DATA ELFDATA2LSB
#define ELF_TARG_MACH EM_386
#define ELF_TARG_VER 1
#define ET_DYN_LOAD_ADDR 0x00002000
#elif defined(__amd64__)
/*
* ELF definitions for the AMD64 architecture.
*/
#ifndef __ELF_WORD_SIZE
#define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */
#endif
#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
#include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */
#include <sys/elf_generic.h>
#define ELF_ARCH EM_X86_64
#define ELF_ARCH32 EM_386
#define ELF_MACHINE_OK(x) ((x) == EM_X86_64)
/*
* Auxiliary vector entries for passing information to the interpreter.
*
* The i386 supplement to the SVR4 ABI specification names this "auxv_t",
* but POSIX lays claim to all symbols ending with "_t".
*/
typedef struct { /* Auxiliary vector entry on initial stack */
int a_type; /* Entry type. */
union {
int a_val; /* Integer value. */
} a_un;
} Elf32_Auxinfo;
typedef struct { /* Auxiliary vector entry on initial stack */
long a_type; /* Entry type. */
union {
long a_val; /* Integer value. */
void *a_ptr; /* Address. */
void (*a_fcn)(void); /* Function pointer (not used). */
} a_un;
} Elf64_Auxinfo;
__ElfType(Auxinfo);
/*
* Relocation types.
*/
#define R_X86_64_COUNT 24 /* Count of defined relocation types. */
/* Define "machine" characteristics */
#if __ELF_WORD_SIZE == 32
#define ELF_TARG_CLASS ELFCLASS32
#else
#define ELF_TARG_CLASS ELFCLASS64
#endif
#define ELF_TARG_DATA ELFDATA2LSB
#define ELF_TARG_MACH EM_X86_64
#define ELF_TARG_VER 1
#if __ELF_WORD_SIZE == 32
#define ET_DYN_LOAD_ADDR 0x00002000
#else
#define ET_DYN_LOAD_ADDR 0x01021000
#endif
#endif /* __i386__, __amd64__ */
#endif /* !_MACHINE_ELF_H_ */
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