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 * $FreeBSD$ 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 uint64_t Elf64_Addr; 39typedef uint16_t Elf64_Half; 40typedef uint64_t Elf64_Off; 41typedef int32_t Elf64_Sword; 42typedef int64_t Elf64_Sxword; 43typedef uint32_t Elf64_Word; 44typedef uint64_t Elf64_Lword; 45typedef uint64_t Elf64_Xword; 46 47/* 48 * Types of dynamic symbol hash table bucket and chain elements. 49 * 50 * This is inconsistent among 64 bit architectures, so a machine dependent 51 * typedef is required. 52 */ 53 54typedef Elf64_Word Elf64_Hashelt; 55 56/* Non-standard class-dependent datatype used for abstraction. */ 57typedef Elf64_Xword Elf64_Size; 58typedef Elf64_Sxword Elf64_Ssize; 59 60/* 61 * ELF header. 62 */ 63 64typedef struct { 65 unsigned char e_ident[EI_NIDENT]; /* File identification. */ 66 Elf64_Half e_type; /* File type. */ 67 Elf64_Half e_machine; /* Machine architecture. */ 68 Elf64_Word e_version; /* ELF format version. */ 69 Elf64_Addr e_entry; /* Entry point. */ 70 Elf64_Off e_phoff; /* Program header file offset. */ 71 Elf64_Off e_shoff; /* Section header file offset. */ 72 Elf64_Word e_flags; /* Architecture-specific flags. */ 73 Elf64_Half e_ehsize; /* Size of ELF header in bytes. */ 74 Elf64_Half e_phentsize; /* Size of program header entry. */ 75 Elf64_Half e_phnum; /* Number of program header entries. */ 76 Elf64_Half e_shentsize; /* Size of section header entry. */ 77 Elf64_Half e_shnum; /* Number of section header entries. */ 78 Elf64_Half e_shstrndx; /* Section name strings section. */ 79} Elf64_Ehdr; 80 81/* 82 * Section header. 83 */ 84 85typedef struct { 86 Elf64_Word sh_name; /* Section name (index into the 87 section header string table). */ 88 Elf64_Word sh_type; /* Section type. */ 89 Elf64_Xword sh_flags; /* Section flags. */ 90 Elf64_Addr sh_addr; /* Address in memory image. */ 91 Elf64_Off sh_offset; /* Offset in file. */ 92 Elf64_Xword sh_size; /* Size in bytes. */ 93 Elf64_Word sh_link; /* Index of a related section. */ 94 Elf64_Word sh_info; /* Depends on section type. */ 95 Elf64_Xword sh_addralign; /* Alignment in bytes. */ 96 Elf64_Xword sh_entsize; /* Size of each entry in section. */ 97} Elf64_Shdr; 98 99/* 100 * Program header. 101 */ 102 103typedef struct { 104 Elf64_Word p_type; /* Entry type. */ 105 Elf64_Word p_flags; /* Access permission flags. */ 106 Elf64_Off p_offset; /* File offset of contents. */ 107 Elf64_Addr p_vaddr; /* Virtual address in memory image. */ 108 Elf64_Addr p_paddr; /* Physical address (not used). */ 109 Elf64_Xword p_filesz; /* Size of contents in file. */ 110 Elf64_Xword p_memsz; /* Size of contents in memory. */ 111 Elf64_Xword p_align; /* Alignment in memory and file. */ 112} Elf64_Phdr; 113 114/* 115 * Dynamic structure. The ".dynamic" section contains an array of them. 116 */ 117 118typedef struct { 119 Elf64_Sxword d_tag; /* Entry type. */ 120 union { 121 Elf64_Xword d_val; /* Integer value. */ 122 Elf64_Addr d_ptr; /* Address value. */ 123 } d_un; 124} Elf64_Dyn; 125 126/* 127 * Relocation entries. 128 */ 129 130/* Relocations that don't need an addend field. */ 131typedef struct { 132 Elf64_Addr r_offset; /* Location to be relocated. */ 133 Elf64_Xword r_info; /* Relocation type and symbol index. */ 134} Elf64_Rel; 135 136/* Relocations that need an addend field. */ 137typedef struct { 138 Elf64_Addr r_offset; /* Location to be relocated. */ 139 Elf64_Xword r_info; /* Relocation type and symbol index. */ 140 Elf64_Sxword r_addend; /* Addend. */ 141} Elf64_Rela; 142 143/* Macros for accessing the fields of r_info. */ 144#define ELF64_R_SYM(info) ((info) >> 32) 145#define ELF64_R_TYPE(info) ((info) & 0xffffffffL) 146 147/* Macro for constructing r_info from field values. */ 148#define ELF64_R_INFO(sym, type) (((sym) << 32) + ((type) & 0xffffffffL)) 149 150#define ELF64_R_TYPE_DATA(info) (((Elf64_Xword)(info)<<32)>>40) 151#define ELF64_R_TYPE_ID(info) (((Elf64_Xword)(info)<<56)>>56) 152#define ELF64_R_TYPE_INFO(data, type) \ 153 (((Elf64_Xword)(data)<<8)+(Elf64_Xword)(type)) 154 155/* 156 * Note entry header 157 */ 158typedef Elf_Note Elf64_Nhdr; 159 160/* 161 * Move entry 162 */ 163typedef struct { 164 Elf64_Lword m_value; /* symbol value */ 165 Elf64_Xword m_info; /* size + index */ 166 Elf64_Xword m_poffset; /* symbol offset */ 167 Elf64_Half m_repeat; /* repeat count */ 168 Elf64_Half m_stride; /* stride info */ 169} Elf64_Move; 170 171#define ELF64_M_SYM(info) ((info)>>8) 172#define ELF64_M_SIZE(info) ((unsigned char)(info)) 173#define ELF64_M_INFO(sym, size) (((sym)<<8)+(unsigned char)(size)) 174 175/* 176 * Hardware/Software capabilities entry 177 */ 178typedef struct { 179 Elf64_Xword c_tag; /* how to interpret value */ 180 union { 181 Elf64_Xword c_val; 182 Elf64_Addr c_ptr; 183 } c_un; 184} Elf64_Cap; 185 186/* 187 * Symbol table entries. 188 */ 189 190typedef struct { 191 Elf64_Word st_name; /* String table index of name. */ 192 unsigned char st_info; /* Type and binding information. */ 193 unsigned char st_other; /* Reserved (not used). */ 194 Elf64_Half st_shndx; /* Section index of symbol. */ 195 Elf64_Addr st_value; /* Symbol value. */ 196 Elf64_Xword st_size; /* Size of associated object. */ 197} Elf64_Sym; 198 199/* Macros for accessing the fields of st_info. */ 200#define ELF64_ST_BIND(info) ((info) >> 4) 201#define ELF64_ST_TYPE(info) ((info) & 0xf) 202 203/* Macro for constructing st_info from field values. */ 204#define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) 205 206/* Macro for accessing the fields of st_other. */ 207#define ELF64_ST_VISIBILITY(oth) ((oth) & 0x3) 208 209/* Structures used by Sun & GNU-style symbol versioning. */ 210typedef struct { 211 Elf64_Half vd_version; 212 Elf64_Half vd_flags; 213 Elf64_Half vd_ndx; 214 Elf64_Half vd_cnt; 215 Elf64_Word vd_hash; 216 Elf64_Word vd_aux; 217 Elf64_Word vd_next; 218} Elf64_Verdef; 219 220typedef struct { 221 Elf64_Word vda_name; 222 Elf64_Word vda_next; 223} Elf64_Verdaux; 224 225typedef struct { 226 Elf64_Half vn_version; 227 Elf64_Half vn_cnt; 228 Elf64_Word vn_file; 229 Elf64_Word vn_aux; 230 Elf64_Word vn_next; 231} Elf64_Verneed; 232 233typedef struct { 234 Elf64_Word vna_hash; 235 Elf64_Half vna_flags; 236 Elf64_Half vna_other; 237 Elf64_Word vna_name; 238 Elf64_Word vna_next; 239} Elf64_Vernaux; 240 241typedef Elf64_Half Elf64_Versym; 242 243typedef struct { 244 Elf64_Half si_boundto; /* direct bindings - symbol bound to */ 245 Elf64_Half si_flags; /* per symbol flags */ 246} Elf64_Syminfo; 247 248#endif /* !_SYS_ELF64_H_ */ 249