1/*- 2 * Copyright (c) 2006 Joseph Koshy 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/* 30 * ELF types, defined in the "enum Elf_Type" API. 31 * 32 * The members of the list form a 3-tuple: (name, C-type-suffix, OSversion). 33 * + `name' is an Elf_Type symbol without the `ELF_T_' prefix. 34 * + `C-type-suffix' is the suffix for Elf32_ and Elf64_ type names. 35 * + `version' is the OS version the symbol first appeared in. 36 * 37 * OS revisions of note are: 38 * 600102 - The earliest (6.0-STABLE) version supported by this code. 39 * 700009 - Symbol versioning and ELF64 type changes. 40 * 700025 - More ELF types and the introduction of libelf. 41 */ 42 43define(`ELF_TYPE_LIST', 44 ``ADDR, Addr, 600102', 45 `BYTE, Byte, 600102', 46 `CAP, Cap, 700025', 47 `DYN, Dyn, 600102', 48 `EHDR, Ehdr, 600102', 49 `GNUHASH, -, 800062', 50 `HALF, Half, 600102', 51 `LWORD, Lword, 700025', 52 `MOVE, Move, 700025', 53 `MOVEP, MoveP, 700025', 54 `NOTE, Note, 600102', 55 `OFF, Off, 600102', 56 `PHDR, Phdr, 600102', 57 `REL, Rel, 600102', 58 `RELA, Rela, 600102', 59 `SHDR, Shdr, 600102', 60 `SWORD, Sword, 600102', 61 `SXWORD, Sxword, 700009', 62 `SYMINFO, Syminfo, 700025', 63 `SYM, Sym, 600102', 64 `VDEF, Verdef, 700009', 65 `VNEED, Verneed, 700009', 66 `WORD, Word, 600102', 67 `XWORD, Xword, 700009', 68 `NUM, _, _'') 69 70/* 71 * DEFINE_STRUCT(NAME,MEMBERLIST...) 72 * 73 * Map a type name to its members. 74 * 75 * Each member-list element comprises of pairs of (field name, type), 76 * in the sequence used in the file representation of `NAME'. 77 * 78 * Each member list element comprises a pair containing a field name 79 * and a basic type. Basic types include IDENT, HALF, WORD, LWORD, 80 * ADDR{32,64}, OFF{32,64}, SWORD, XWORD, SXWORD. 81 * 82 * The last element of a member list is the null element: `_,_'. 83 */ 84 85define(`DEFINE_STRUCT',`define(`$1_DEF',shift($@))dnl') 86 87DEFINE_STRUCT(`Elf32_Cap', 88 ``c_tag, WORD', 89 `c_un.c_val, WORD', 90 `_,_'') 91 92DEFINE_STRUCT(`Elf64_Cap', 93 ``c_tag, XWORD', 94 `c_un.c_val, XWORD', 95 `_,_'') 96 97DEFINE_STRUCT(`Elf32_Dyn', 98 ``d_tag, SWORD', 99 `d_un.d_ptr, WORD', 100 `_,_'') 101 102DEFINE_STRUCT(`Elf64_Dyn', 103 ``d_tag, SXWORD', 104 `d_un.d_ptr, XWORD', 105 `_,_'') 106 107DEFINE_STRUCT(`Elf32_Ehdr', 108 ``e_ident, IDENT', 109 `e_type, HALF', 110 `e_machine, HALF', 111 `e_version, WORD', 112 `e_entry, ADDR', 113 `e_phoff, OFF', 114 `e_shoff, OFF', 115 `e_flags, WORD', 116 `e_ehsize, HALF', 117 `e_phentsize, HALF', 118 `e_phnum, HALF', 119 `e_shentsize, HALF', 120 `e_shnum, HALF', 121 `e_shstrndx, HALF', 122 `_,_'') 123 124DEFINE_STRUCT(`Elf64_Ehdr', 125 ``e_ident, IDENT', 126 `e_type, HALF', 127 `e_machine, HALF', 128 `e_version, WORD', 129 `e_entry, ADDR', 130 `e_phoff, OFF', 131 `e_shoff, OFF', 132 `e_flags, WORD', 133 `e_ehsize, HALF', 134 `e_phentsize, HALF', 135 `e_phnum, HALF', 136 `e_shentsize, HALF', 137 `e_shnum, HALF', 138 `e_shstrndx, HALF', 139 `_,_'') 140 141DEFINE_STRUCT(`Elf32_Move', 142 ``m_value, LWORD', 143 `m_info, WORD', 144 `m_poffset, WORD', 145 `m_repeat, HALF', 146 `m_stride, HALF', 147 `_,_'') 148 149DEFINE_STRUCT(`Elf64_Move', 150 ``m_value, LWORD', 151 `m_info, XWORD', 152 `m_poffset, XWORD', 153 `m_repeat, HALF', 154 `m_stride, HALF', 155 `_,_'') 156 157DEFINE_STRUCT(`Elf32_Phdr', 158 ``p_type, WORD', 159 `p_offset, OFF', 160 `p_vaddr, ADDR', 161 `p_paddr, ADDR', 162 `p_filesz, WORD', 163 `p_memsz, WORD', 164 `p_flags, WORD', 165 `p_align, WORD', 166 `_,_'') 167 168DEFINE_STRUCT(`Elf64_Phdr', 169 ``p_type, WORD', 170 `p_flags, WORD', 171 `p_offset, OFF', 172 `p_vaddr, ADDR', 173 `p_paddr, ADDR', 174 `p_filesz, XWORD', 175 `p_memsz, XWORD', 176 `p_align, XWORD', 177 `_,_'') 178 179DEFINE_STRUCT(`Elf32_Rel', 180 ``r_offset, ADDR', 181 `r_info, WORD', 182 `_,_'') 183 184DEFINE_STRUCT(`Elf64_Rel', 185 ``r_offset, ADDR', 186 `r_info, XWORD', 187 `_,_'') 188 189DEFINE_STRUCT(`Elf32_Rela', 190 ``r_offset, ADDR', 191 `r_info, WORD', 192 `r_addend, SWORD', 193 `_,_'') 194 195DEFINE_STRUCT(`Elf64_Rela', 196 ``r_offset, ADDR', 197 `r_info, XWORD', 198 `r_addend, SXWORD', 199 `_,_'') 200 201DEFINE_STRUCT(`Elf32_Shdr', 202 ``sh_name, WORD', 203 `sh_type, WORD', 204 `sh_flags, WORD', 205 `sh_addr, ADDR', 206 `sh_offset, OFF', 207 `sh_size, WORD', 208 `sh_link, WORD', 209 `sh_info, WORD', 210 `sh_addralign, WORD', 211 `sh_entsize, WORD', 212 `_,_'') 213 214DEFINE_STRUCT(`Elf64_Shdr', 215 ``sh_name, WORD', 216 `sh_type, WORD', 217 `sh_flags, XWORD', 218 `sh_addr, ADDR', 219 `sh_offset, OFF', 220 `sh_size, XWORD', 221 `sh_link, WORD', 222 `sh_info, WORD', 223 `sh_addralign, XWORD', 224 `sh_entsize, XWORD', 225 `_,_'') 226 227DEFINE_STRUCT(`Elf32_Sym', 228 ``st_name, WORD', 229 `st_value, ADDR', 230 `st_size, WORD', 231 `st_info, BYTE', 232 `st_other, BYTE', 233 `st_shndx, HALF', 234 `_,_'') 235 236DEFINE_STRUCT(`Elf64_Sym', 237 ``st_name, WORD', 238 `st_info, BYTE', 239 `st_other, BYTE', 240 `st_shndx, HALF', 241 `st_value, ADDR', 242 `st_size, XWORD', 243 `_,_'') 244 245DEFINE_STRUCT(`Elf32_Syminfo', 246 ``si_boundto, HALF', 247 `si_flags, HALF', 248 `_,_'') 249 250DEFINE_STRUCT(`Elf64_Syminfo', 251 ``si_boundto, HALF', 252 `si_flags, HALF', 253 `_,_'') 254 255DEFINE_STRUCT(`Elf32_Verdaux', 256 ``vda_name, WORD', 257 `vda_next, WORD', 258 `_,_'') 259 260DEFINE_STRUCT(`Elf64_Verdaux', 261 ``vda_name, WORD', 262 `vda_next, WORD', 263 `_,_'') 264 265DEFINE_STRUCT(`Elf32_Verdef', 266 ``vd_version, HALF', 267 `vd_flags, HALF', 268 `vd_ndx, HALF', 269 `vd_cnt, HALF', 270 `vd_hash, WORD', 271 `vd_aux, WORD', 272 `vd_next, WORD', 273 `_,_'') 274 275DEFINE_STRUCT(`Elf64_Verdef', 276 ``vd_version, HALF', 277 `vd_flags, HALF', 278 `vd_ndx, HALF', 279 `vd_cnt, HALF', 280 `vd_hash, WORD', 281 `vd_aux, WORD', 282 `vd_next, WORD', 283 `_,_'') 284 285DEFINE_STRUCT(`Elf32_Verneed', 286 ``vn_version, HALF', 287 `vn_cnt, HALF', 288 `vn_file, WORD', 289 `vn_aux, WORD', 290 `vn_next, WORD', 291 `_,_'') 292 293DEFINE_STRUCT(`Elf64_Verneed', 294 ``vn_version, HALF', 295 `vn_cnt, HALF', 296 `vn_file, WORD', 297 `vn_aux, WORD', 298 `vn_next, WORD', 299 `_,_'') 300 301DEFINE_STRUCT(`Elf32_Vernaux', 302 ``vna_hash, WORD', 303 `vna_flags, HALF', 304 `vna_other, HALF', 305 `vna_name, WORD', 306 `vna_next, WORD', 307 `_,_'') 308 309DEFINE_STRUCT(`Elf64_Vernaux', 310 ``vna_hash, WORD', 311 `vna_flags, HALF', 312 `vna_other, HALF', 313 `vna_name, WORD', 314 `vna_next, WORD', 315 `_,_'') 316