elf64.h revision 38873
1/*- 2 * Copyright (c) 1996-1998 John D. Polstra. 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: elf64.h,v 1.4 1998/08/16 03:03:38 jdp Exp $ 27 */ 28 29#ifndef _SYS_ELF64_H_ 30#define _SYS_ELF64_H_ 1 31 32#include <sys/elf_common.h> 33 34/* 35 * ELF definitions common to all 64-bit architectures. 36 */ 37 38typedef u_int64_t Elf64_Addr; 39typedef u_int32_t Elf64_Half; 40typedef u_int64_t Elf64_Off; 41typedef int64_t Elf64_Sword; 42typedef u_int64_t Elf64_Word; 43typedef u_int64_t Elf64_Size; 44typedef u_int16_t Elf64_Quarter; 45 46/* 47 * ELF header. 48 */ 49 50typedef struct { 51 unsigned char e_ident[EI_NIDENT]; /* File identification. */ 52 Elf64_Quarter e_type; /* File type. */ 53 Elf64_Quarter e_machine; /* Machine architecture. */ 54 Elf64_Half e_version; /* ELF format version. */ 55 Elf64_Addr e_entry; /* Entry point. */ 56 Elf64_Off e_phoff; /* Program header file offset. */ 57 Elf64_Off e_shoff; /* Section header file offset. */ 58 Elf64_Half e_flags; /* Architecture-specific flags. */ 59 Elf64_Quarter e_ehsize; /* Size of ELF header in bytes. */ 60 Elf64_Quarter e_phentsize; /* Size of program header entry. */ 61 Elf64_Quarter e_phnum; /* Number of program header entries. */ 62 Elf64_Quarter e_shentsize; /* Size of section header entry. */ 63 Elf64_Quarter e_shnum; /* Number of section header entries. */ 64 Elf64_Quarter e_shstrndx; /* Section name strings section. */ 65} Elf64_Ehdr; 66 67/* 68 * Section header. 69 */ 70 71typedef struct { 72 Elf64_Half sh_name; /* Section name (index into the 73 section header string table). */ 74 Elf64_Half sh_type; /* Section type. */ 75 Elf64_Size sh_flags; /* Section flags. */ 76 Elf64_Addr sh_addr; /* Address in memory image. */ 77 Elf64_Off sh_offset; /* Offset in file. */ 78 Elf64_Size sh_size; /* Size in bytes. */ 79 Elf64_Half sh_link; /* Index of a related section. */ 80 Elf64_Half sh_info; /* Depends on section type. */ 81 Elf64_Size sh_addralign; /* Alignment in bytes. */ 82 Elf64_Size sh_entsize; /* Size of each entry in section. */ 83} Elf64_Shdr; 84 85/* 86 * Program header. 87 */ 88 89typedef struct { 90 Elf64_Half p_type; /* Entry type. */ 91 Elf64_Half p_flags; /* Access permission flags. */ 92 Elf64_Off p_offset; /* File offset of contents. */ 93 Elf64_Addr p_vaddr; /* Virtual address in memory image. */ 94 Elf64_Addr p_paddr; /* Physical address (not used). */ 95 Elf64_Size p_filesz; /* Size of contents in file. */ 96 Elf64_Size p_memsz; /* Size of contents in memory. */ 97 Elf64_Size p_align; /* Alignment in memory and file. */ 98} Elf64_Phdr; 99 100/* 101 * Dynamic structure. The ".dynamic" section contains an array of them. 102 */ 103 104typedef struct { 105 Elf64_Size d_tag; /* Entry type. */ 106 union { 107 Elf64_Size d_val; /* Integer value. */ 108 Elf64_Addr d_ptr; /* Address value. */ 109 } d_un; 110} Elf64_Dyn; 111 112/* 113 * Relocation entries. 114 */ 115 116/* Relocations that don't need an addend field. */ 117typedef struct { 118 Elf64_Addr r_offset; /* Location to be relocated. */ 119 Elf64_Size r_info; /* Relocation type and symbol index. */ 120} Elf64_Rel; 121 122/* Relocations that need an addend field. */ 123typedef struct { 124 Elf64_Addr r_offset; /* Location to be relocated. */ 125 Elf64_Size r_info; /* Relocation type and symbol index. */ 126 Elf64_Off r_addend; /* Addend. */ 127} Elf64_Rela; 128 129/* Macros for accessing the fields of r_info. */ 130#define ELF64_R_SYM(info) ((info) >> 32) 131#define ELF64_R_TYPE(info) ((unsigned char)(info)) 132 133/* Macro for constructing r_info from field values. */ 134#define ELF64_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) 135 136/* 137 * Symbol table entries. 138 */ 139 140typedef struct { 141 Elf64_Half st_name; /* String table index of name. */ 142 unsigned char st_info; /* Type and binding information. */ 143 unsigned char st_other; /* Reserved (not used). */ 144 Elf64_Quarter st_shndx; /* Section index of symbol. */ 145 Elf64_Addr st_value; /* Symbol value. */ 146 Elf64_Size st_size; /* Size of associated object. */ 147} Elf64_Sym; 148 149/* Macros for accessing the fields of st_info. */ 150#define ELF64_ST_BIND(info) ((info) >> 4) 151#define ELF64_ST_TYPE(info) ((info) & 0xf) 152 153/* Macro for constructing st_info from field values. */ 154#define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) 155 156#endif /* !_SYS_ELF64_H_ */ 157