Home | History | Annotate | Download | only in sys
      1 /*	$OpenBSD: exec_elf.h,v 1.41 2006/01/06 18:53:05 millert Exp $	*/
      2 /*
      3  * Copyright (c) 1995, 1996 Erik Theisen.  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  * 3. The name of the author may not be used to endorse or promote products
     14  *    derived from this software without specific prior written permission
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 /*
     29  * This is the ELF ABI header file
     30  * formerly known as "elf_abi.h".
     31  */
     32 
     33 #ifndef _SYS_EXEC_ELF_H_
     34 #define _SYS_EXEC_ELF_H_
     35 
     36 #include <machine/_types.h>
     37 #include <machine/exec.h>
     38 #include <linux/elf.h>
     39 
     40 /* e_ident[] Operating System/ABI */
     41 #define ELFOSABI_SYSV		0	/* UNIX System V ABI */
     42 #define ELFOSABI_HPUX		1	/* HP-UX operating system */
     43 #define ELFOSABI_NETBSD		2	/* NetBSD */
     44 #define ELFOSABI_LINUX		3	/* GNU/Linux */
     45 #define ELFOSABI_HURD		4	/* GNU/Hurd */
     46 #define ELFOSABI_86OPEN		5	/* 86Open common IA32 ABI */
     47 #define ELFOSABI_SOLARIS	6	/* Solaris */
     48 #define ELFOSABI_MONTEREY	7	/* Monterey */
     49 #define ELFOSABI_IRIX		8	/* IRIX */
     50 #define ELFOSABI_FREEBSD	9	/* FreeBSD */
     51 #define ELFOSABI_TRU64		10	/* TRU64 UNIX */
     52 #define ELFOSABI_MODESTO	11	/* Novell Modesto */
     53 #define ELFOSABI_OPENBSD	12	/* OpenBSD */
     54 #define ELFOSABI_ARM		97	/* ARM */
     55 #define ELFOSABI_STANDALONE	255	/* Standalone (embedded) application */
     56 
     57 /* e_ident */
     58 #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
     59                       (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
     60                       (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
     61                       (ehdr).e_ident[EI_MAG3] == ELFMAG3)
     62 
     63 /* e_machine */
     64 #define EM_NONE		0		/* No Machine */
     65 #define EM_M32		1		/* AT&T WE 32100 */
     66 #define EM_SPARC	2		/* SPARC */
     67 #define EM_386		3		/* Intel 80386 */
     68 #define EM_68K		4		/* Motorola 68000 */
     69 #define EM_88K		5		/* Motorola 88000 */
     70 #define EM_486		6		/* Intel 80486 - unused? */
     71 #define EM_860		7		/* Intel 80860 */
     72 #define EM_MIPS		8		/* MIPS R3000 Big-Endian only */
     73 /*
     74  * Don't know if EM_MIPS_RS4_BE,
     75  * EM_SPARC64, EM_PARISC,
     76  * or EM_PPC are ABI compliant
     77  */
     78 #define EM_MIPS_RS4_BE	10		/* MIPS R4000 Big-Endian */
     79 #define EM_SPARC64	11		/* SPARC v9 64-bit unoffical */
     80 #define EM_PARISC	15		/* HPPA */
     81 #define EM_SPARC32PLUS	18		/* Enhanced instruction set SPARC */
     82 #define EM_PPC		20		/* PowerPC */
     83 #define EM_ARM		40		/* Advanced RISC Machines ARM */
     84 #define EM_ALPHA	41		/* DEC ALPHA */
     85 #define EM_SPARCV9	43		/* SPARC version 9 */
     86 #define EM_ALPHA_EXP	0x9026		/* DEC ALPHA */
     87 #define EM_AMD64	62		/* AMD64 architecture */
     88 #define EM_VAX		75		/* DEC VAX */
     89 #define EM_NUM		15		/* number of machine types */
     90 
     91 
     92 /* Section names */
     93 #define ELF_BSS         ".bss"		/* uninitialized data */
     94 #define ELF_DATA        ".data"		/* initialized data */
     95 #define ELF_DEBUG       ".debug"	/* debug */
     96 #define ELF_DYNAMIC     ".dynamic"	/* dynamic linking information */
     97 #define ELF_DYNSTR      ".dynstr"	/* dynamic string table */
     98 #define ELF_DYNSYM      ".dynsym"	/* dynamic symbol table */
     99 #define ELF_FINI        ".fini"		/* termination code */
    100 #define ELF_GOT         ".got"		/* global offset table */
    101 #define ELF_HASH        ".hash"		/* symbol hash table */
    102 #define ELF_INIT        ".init"		/* initialization code */
    103 #define ELF_REL_DATA    ".rel.data"	/* relocation data */
    104 #define ELF_REL_FINI    ".rel.fini"	/* relocation termination code */
    105 #define ELF_REL_INIT    ".rel.init"	/* relocation initialization code */
    106 #define ELF_REL_DYN     ".rel.dyn"	/* relocaltion dynamic link info */
    107 #define ELF_REL_RODATA  ".rel.rodata"	/* relocation read-only data */
    108 #define ELF_REL_TEXT    ".rel.text"	/* relocation code */
    109 #define ELF_RODATA      ".rodata"	/* read-only data */
    110 #define ELF_SHSTRTAB    ".shstrtab"	/* section header string table */
    111 #define ELF_STRTAB      ".strtab"	/* string table */
    112 #define ELF_SYMTAB      ".symtab"	/* symbol table */
    113 #define ELF_TEXT        ".text"		/* code */
    114 
    115 /* Symbol Binding - ELF32_ST_BIND - st_info */
    116 #define STB_LOCAL	0		/* Local symbol */
    117 #define STB_GLOBAL	1		/* Global symbol */
    118 #define STB_WEAK	2		/* like global - lower precedence */
    119 #define STB_NUM		3		/* number of symbol bindings */
    120 #define STB_LOPROC	13		/* reserved range for processor */
    121 #define STB_HIPROC	15		/*  specific symbol bindings */
    122 
    123 /* Symbol type - ELF32_ST_TYPE - st_info */
    124 #define STT_NOTYPE	0		/* not specified */
    125 #define STT_OBJECT	1		/* data object */
    126 #define STT_FUNC	2		/* function */
    127 #define STT_SECTION	3		/* section */
    128 #define STT_FILE	4		/* file */
    129 #define STT_NUM		5		/* number of symbol types */
    130 #define STT_LOPROC	13		/* reserved range for processor */
    131 #define STT_HIPROC	15		/*  specific symbol types */
    132 
    133 #define PT_GNU_RELRO    0x6474e552      /* Read-only post relocation */
    134 
    135 #endif /* _SYS_EXEC_ELF_H_ */
    136