exec_elf.h revision 1.1
1 /* $NetBSD: exec_elf.h,v 1.1 2004/11/28 07:00:53 jmc Exp $ */ 2 3 /*- 4 * Copyright (c) 1994 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _SYS_EXEC_ELF_H_ 40 #define _SYS_EXEC_ELF_H_ 41 42 /* 43 * The current ELF ABI specification is available at: 44 * http://www.sco.com/developers/gabi/ 45 * 46 * Current header definitions are in: 47 * http://www.sco.com/developers/gabi/latest/ch4.eheader.html 48 */ 49 50 #if defined(_KERNEL) || defined(_STANDALONE) 51 #include <sys/types.h> 52 #else 53 #include <inttypes.h> 54 #endif /* _KERNEL || _STANDALONE */ 55 56 typedef uint8_t Elf_Byte; 57 58 typedef uint32_t Elf32_Addr; 59 #define ELF32_FSZ_ADDR 4 60 typedef uint32_t Elf32_Off; 61 #define ELF32_FSZ_OFF 4 62 typedef int32_t Elf32_Sword; 63 #define ELF32_FSZ_SWORD 4 64 typedef uint32_t Elf32_Word; 65 #define ELF32_FSZ_WORD 4 66 typedef uint16_t Elf32_Half; 67 #define ELF32_FSZ_HALF 2 68 69 typedef uint64_t Elf64_Addr; 70 #define ELF64_FSZ_ADDR 8 71 typedef uint64_t Elf64_Off; 72 #define ELF64_FSZ_OFF 8 73 typedef int32_t Elf64_Shalf; 74 #define ELF64_FSZ_SHALF 4 75 76 #ifndef ELF64_FSZ_SWORD 77 typedef int32_t Elf64_Sword; 78 #define ELF64_FSZ_SWORD 4 79 #endif /* ELF64_FSZ_SWORD */ 80 #ifndef ELF64_FSZ_WORD 81 typedef uint32_t Elf64_Word; 82 #define ELF64_FSZ_WORD 4 83 #endif /* ELF64_FSZ_WORD */ 84 85 typedef int64_t Elf64_Sxword; 86 #define ELF64_FSZ_XWORD 8 87 typedef uint64_t Elf64_Xword; 88 #define ELF64_FSZ_XWORD 8 89 typedef uint32_t Elf64_Half; 90 #define ELF64_FSZ_HALF 4 91 typedef uint16_t Elf64_Quarter; 92 #define ELF64_FSZ_QUARTER 2 93 94 /* 95 * ELF Header 96 */ 97 #define ELF_NIDENT 16 98 99 typedef struct { 100 unsigned char e_ident[ELF_NIDENT]; /* Id bytes */ 101 Elf32_Half e_type; /* file type */ 102 Elf32_Half e_machine; /* machine type */ 103 Elf32_Word e_version; /* version number */ 104 Elf32_Addr e_entry; /* entry point */ 105 Elf32_Off e_phoff; /* Program hdr offset */ 106 Elf32_Off e_shoff; /* Section hdr offset */ 107 Elf32_Word e_flags; /* Processor flags */ 108 Elf32_Half e_ehsize; /* sizeof ehdr */ 109 Elf32_Half e_phentsize; /* Program header entry size */ 110 Elf32_Half e_phnum; /* Number of program headers */ 111 Elf32_Half e_shentsize; /* Section header entry size */ 112 Elf32_Half e_shnum; /* Number of section headers */ 113 Elf32_Half e_shstrndx; /* String table index */ 114 } Elf32_Ehdr; 115 116 typedef struct { 117 unsigned char e_ident[ELF_NIDENT]; /* Id bytes */ 118 Elf64_Quarter e_type; /* file type */ 119 Elf64_Quarter e_machine; /* machine type */ 120 Elf64_Half e_version; /* version number */ 121 Elf64_Addr e_entry; /* entry point */ 122 Elf64_Off e_phoff; /* Program hdr offset */ 123 Elf64_Off e_shoff; /* Section hdr offset */ 124 Elf64_Half e_flags; /* Processor flags */ 125 Elf64_Quarter e_ehsize; /* sizeof ehdr */ 126 Elf64_Quarter e_phentsize; /* Program header entry size */ 127 Elf64_Quarter e_phnum; /* Number of program headers */ 128 Elf64_Quarter e_shentsize; /* Section header entry size */ 129 Elf64_Quarter e_shnum; /* Number of section headers */ 130 Elf64_Quarter e_shstrndx; /* String table index */ 131 } Elf64_Ehdr; 132 133 /* e_ident offsets */ 134 #define EI_MAG0 0 /* '\177' */ 135 #define EI_MAG1 1 /* 'E' */ 136 #define EI_MAG2 2 /* 'L' */ 137 #define EI_MAG3 3 /* 'F' */ 138 #define EI_CLASS 4 /* File class */ 139 #define EI_DATA 5 /* Data encoding */ 140 #define EI_VERSION 6 /* File version */ 141 #define EI_OSABI 7 /* Operating system/ABI identification */ 142 #define EI_ABIVERSION 8 /* ABI version */ 143 #define EI_PAD 9 /* Start of padding bytes up to EI_NIDENT*/ 144 #define EI_NIDENT 16 /* First non-ident header byte */ 145 146 /* e_ident[EI_MAG0,EI_MAG3] */ 147 #define ELFMAG0 0x7f 148 #define ELFMAG1 'E' 149 #define ELFMAG2 'L' 150 #define ELFMAG3 'F' 151 #define ELFMAG "\177ELF" 152 #define SELFMAG 4 153 154 /* e_ident[EI_CLASS] */ 155 #define ELFCLASSNONE 0 /* Invalid class */ 156 #define ELFCLASS32 1 /* 32-bit objects */ 157 #define ELFCLASS64 2 /* 64-bit objects */ 158 #define ELFCLASSNUM 3 159 160 /* e_ident[EI_DATA] */ 161 #define ELFDATANONE 0 /* Invalid data encoding */ 162 #define ELFDATA2LSB 1 /* 2's complement values, LSB first */ 163 #define ELFDATA2MSB 2 /* 2's complement values, MSB first */ 164 165 /* e_ident[EI_VERSION] */ 166 #define EV_NONE 0 /* Invalid version */ 167 #define EV_CURRENT 1 /* Current version */ 168 #define EV_NUM 2 169 170 /* e_ident[EI_OSABI] */ 171 #define ELFOSABI_SYSV 0 /* UNIX System V ABI */ 172 #define ELFOSABI_HPUX 1 /* HP-UX operating system */ 173 #define ELFOSABI_NETBSD 2 /* NetBSD */ 174 #define ELFOSABI_LINUX 3 /* GNU/Linux */ 175 #define ELFOSABI_HURD 4 /* GNU/Hurd */ 176 #define ELFOSABI_86OPEN 5 /* 86Open */ 177 #define ELFOSABI_SOLARIS 6 /* Solaris */ 178 #define ELFOSABI_MONTEREY 7 /* Monterey */ 179 #define ELFOSABI_IRIX 8 /* IRIX */ 180 #define ELFOSABI_FREEBSD 9 /* FreeBSD */ 181 #define ELFOSABI_TRU64 10 /* TRU64 UNIX */ 182 #define ELFOSABI_MODESTO 11 /* Novell Modesto */ 183 #define ELFOSABI_OPENBSD 12 /* OpenBSD */ 184 /* Unofficial OSABIs follow */ 185 #define ELFOSABI_ARM 97 /* ARM */ 186 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ 187 188 /* e_type */ 189 #define ET_NONE 0 /* No file type */ 190 #define ET_REL 1 /* Relocatable file */ 191 #define ET_EXEC 2 /* Executable file */ 192 #define ET_DYN 3 /* Shared object file */ 193 #define ET_CORE 4 /* Core file */ 194 #define ET_NUM 5 195 196 #define ET_LOOS 0xfe00 /* Operating system specific range */ 197 #define ET_HIOS 0xfeff 198 #define ET_LOPROC 0xff00 /* Processor-specific range */ 199 #define ET_HIPROC 0xffff 200 201 /* e_machine */ 202 #define EM_NONE 0 /* No machine */ 203 #define EM_M32 1 /* AT&T WE 32100 */ 204 #define EM_SPARC 2 /* SPARC */ 205 #define EM_386 3 /* Intel 80386 */ 206 #define EM_68K 4 /* Motorola 68000 */ 207 #define EM_88K 5 /* Motorola 88000 */ 208 #define EM_486 6 /* Intel 80486 */ 209 #define EM_860 7 /* Intel 80860 */ 210 #define EM_MIPS 8 /* MIPS I Architecture */ 211 #define EM_S370 9 /* Amdahl UTS on System/370 */ 212 #define EM_MIPS_RS3_LE 10 /* MIPS RS3000 Little-endian */ 213 /* 11-14 - Reserved */ 214 #define EM_RS6000 11 /* IBM RS/6000 XXX reserved */ 215 #define EM_PARISC 15 /* Hewlett-Packard PA-RISC */ 216 #define EM_NCUBE 16 /* NCube XXX reserved */ 217 #define EM_VPP500 17 /* Fujitsu VPP500 */ 218 #define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */ 219 #define EM_960 19 /* Intel 80960 */ 220 #define EM_PPC 20 /* PowerPC */ 221 #define EM_PPC64 21 /* 64-bit PowerPC */ 222 /* 22-35 - Reserved */ 223 #define EM_V800 36 /* NEC V800 */ 224 #define EM_FR20 37 /* Fujitsu FR20 */ 225 #define EM_RH32 38 /* TRW RH-32 */ 226 #define EM_RCE 39 /* Motorola RCE */ 227 #define EM_ARM 40 /* Advanced RISC Machines ARM */ 228 #define EM_ALPHA 41 /* DIGITAL Alpha */ 229 #define EM_SH 42 /* Hitachi Super-H */ 230 #define EM_SPARCV9 43 /* SPARC Version 9 */ 231 #define EM_TRICORE 44 /* Siemens Tricore */ 232 #define EM_ARC 45 /* Argonaut RISC Core */ 233 #define EM_H8_300 46 /* Hitachi H8/300 */ 234 #define EM_H8_300H 47 /* Hitachi H8/300H */ 235 #define EM_H8S 48 /* Hitachi H8S */ 236 #define EM_H8_500 49 /* Hitachi H8/500 */ 237 #define EM_IA_64 50 /* Intel Merced Processor */ 238 #define EM_MIPS_X 51 /* Stanford MIPS-X */ 239 #define EM_COLDFIRE 52 /* Motorola Coldfire */ 240 #define EM_68HC12 53 /* Motorola MC68HC12 */ 241 #define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator */ 242 #define EM_PCP 55 /* Siemens PCP */ 243 #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */ 244 #define EM_NDR1 57 /* Denso NDR1 microprocessor */ 245 #define EM_STARCORE 58 /* Motorola Star*Core processor */ 246 #define EM_ME16 59 /* Toyota ME16 processor */ 247 #define EM_ST100 60 /* STMicroelectronics ST100 processor */ 248 #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded family processor */ 249 #define EM_X86_64 62 /* AMD x86-64 architecture */ 250 #define EM_PDSP 63 /* Sony DSP Processor */ 251 #define EM_PDP10 64 /* Digital Equipment Corp. PDP-10 */ 252 #define EM_PDP11 65 /* Digital Equipment Corp. PDP-11 */ 253 #define EM_FX66 66 /* Siemens FX66 microcontroller */ 254 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 bit microcontroller */ 255 #define EM_ST7 68 /* STMicroelectronics ST7 8-bit microcontroller */ 256 #define EM_68HC16 69 /* Motorola MC68HC16 Microcontroller */ 257 #define EM_68HC11 70 /* Motorola MC68HC11 Microcontroller */ 258 #define EM_68HC08 71 /* Motorola MC68HC08 Microcontroller */ 259 #define EM_68HC05 72 /* Motorola MC68HC05 Microcontroller */ 260 #define EM_SVX 73 /* Silicon Graphics SVx */ 261 #define EM_ST19 74 /* STMicroelectronics ST19 8-bit CPU */ 262 #define EM_VAX 75 /* Digital VAX */ 263 #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ 264 #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded CPU */ 265 #define EM_FIREPATH 78 /* Element 14 64-bit DSP processor */ 266 #define EM_ZSP 79 /* LSI Logic's 16-bit DSP processor */ 267 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ 268 #define EM_HUANY 81 /* Harvard's machine-independent format */ 269 #define EM_PRISM 82 /* SiTera Prism */ 270 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ 271 #define EM_FR30 84 /* Fujitsu FR30 */ 272 #define EM_D10V 85 /* Mitsubishi D10V */ 273 #define EM_D30V 86 /* Mitsubishi D30V */ 274 #define EM_V850 87 /* NEC v850 */ 275 #define EM_M32R 88 /* Mitsubishi M32R */ 276 #define EM_MN10300 89 /* Matsushita MN10300 */ 277 #define EM_MN10200 90 /* Matsushita MN10200 */ 278 #define EM_PJ 91 /* picoJava */ 279 #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ 280 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ 281 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ 282 #define EM_NS32K 97 /* National Semiconductor 32000 series */ 283 284 /* Unofficial machine types follow */ 285 #define EM_ALPHA_EXP 36902 /* used by NetBSD/alpha; obsolete */ 286 #define EM_NUM 36903 287 288 /* 289 * Program Header 290 */ 291 typedef struct { 292 Elf32_Word p_type; /* entry type */ 293 Elf32_Off p_offset; /* offset */ 294 Elf32_Addr p_vaddr; /* virtual address */ 295 Elf32_Addr p_paddr; /* physical address */ 296 Elf32_Word p_filesz; /* file size */ 297 Elf32_Word p_memsz; /* memory size */ 298 Elf32_Word p_flags; /* flags */ 299 Elf32_Word p_align; /* memory & file alignment */ 300 } Elf32_Phdr; 301 302 typedef struct { 303 Elf64_Half p_type; /* entry type */ 304 Elf64_Half p_flags; /* flags */ 305 Elf64_Off p_offset; /* offset */ 306 Elf64_Addr p_vaddr; /* virtual address */ 307 Elf64_Addr p_paddr; /* physical address */ 308 Elf64_Xword p_filesz; /* file size */ 309 Elf64_Xword p_memsz; /* memory size */ 310 Elf64_Xword p_align; /* memory & file alignment */ 311 } Elf64_Phdr; 312 313 /* p_type */ 314 #define PT_NULL 0 /* Program header table entry unused */ 315 #define PT_LOAD 1 /* Loadable program segment */ 316 #define PT_DYNAMIC 2 /* Dynamic linking information */ 317 #define PT_INTERP 3 /* Program interpreter */ 318 #define PT_NOTE 4 /* Auxiliary information */ 319 #define PT_SHLIB 5 /* Reserved, unspecified semantics */ 320 #define PT_PHDR 6 /* Entry for header table itself */ 321 #define PT_NUM 7 322 323 #define PT_LOOS 0x60000000 /* OS-specific range */ 324 #define PT_HIOS 0x6fffffff 325 #define PT_LOPROC 0x70000000 /* Processor-specific range */ 326 #define PT_HIPROC 0x7fffffff 327 328 #define PT_MIPS_REGINFO 0x70000000 329 330 /* p_flags */ 331 #define PF_R 0x4 /* Segment is readable */ 332 #define PF_W 0x2 /* Segment is writable */ 333 #define PF_X 0x1 /* Segment is executable */ 334 335 #define PF_MASKOS 0x0ff00000 /* Operating system specific values */ 336 #define PF_MASKPROC 0xf0000000 /* Processor-specific values */ 337 338 /* 339 * Section Headers 340 */ 341 typedef struct { 342 Elf32_Word sh_name; /* section name (.shstrtab index) */ 343 Elf32_Word sh_type; /* section type */ 344 Elf32_Word sh_flags; /* section flags */ 345 Elf32_Addr sh_addr; /* virtual address */ 346 Elf32_Off sh_offset; /* file offset */ 347 Elf32_Word sh_size; /* section size */ 348 Elf32_Word sh_link; /* link to another */ 349 Elf32_Word sh_info; /* misc info */ 350 Elf32_Word sh_addralign; /* memory alignment */ 351 Elf32_Word sh_entsize; /* table entry size */ 352 } Elf32_Shdr; 353 354 typedef struct { 355 Elf64_Half sh_name; /* section name (.shstrtab index) */ 356 Elf64_Half sh_type; /* section type */ 357 Elf64_Xword sh_flags; /* section flags */ 358 Elf64_Addr sh_addr; /* virtual address */ 359 Elf64_Off sh_offset; /* file offset */ 360 Elf64_Xword sh_size; /* section size */ 361 Elf64_Half sh_link; /* link to another */ 362 Elf64_Half sh_info; /* misc info */ 363 Elf64_Xword sh_addralign; /* memory alignment */ 364 Elf64_Xword sh_entsize; /* table entry size */ 365 } Elf64_Shdr; 366 367 /* sh_type */ 368 #define SHT_NULL 0 /* Section header table entry unused */ 369 #define SHT_PROGBITS 1 /* Program information */ 370 #define SHT_SYMTAB 2 /* Symbol table */ 371 #define SHT_STRTAB 3 /* String table */ 372 #define SHT_RELA 4 /* Relocation information w/ addend */ 373 #define SHT_HASH 5 /* Symbol hash table */ 374 #define SHT_DYNAMIC 6 /* Dynamic linking information */ 375 #define SHT_NOTE 7 /* Auxiliary information */ 376 #define SHT_NOBITS 8 /* No space allocated in file image */ 377 #define SHT_REL 9 /* Relocation information w/o addend */ 378 #define SHT_SHLIB 10 /* Reserved, unspecified semantics */ 379 #define SHT_DYNSYM 11 /* Symbol table for dynamic linker */ 380 #define SHT_NUM 12 381 382 #define SHT_LOOS 0x60000000 /* Operating system specific range */ 383 #define SHT_HIOS 0x6fffffff 384 #define SHT_LOPROC 0x70000000 /* Processor-specific range */ 385 #define SHT_HIPROC 0x7fffffff 386 #define SHT_LOUSER 0x80000000 /* Application-specific range */ 387 #define SHT_HIUSER 0xffffffff 388 389 /* sh_flags */ 390 #define SHF_WRITE 0x1 /* Section contains writable data */ 391 #define SHF_ALLOC 0x2 /* Section occupies memory */ 392 #define SHF_EXECINSTR 0x4 /* Section contains executable insns */ 393 394 #define SHF_MASKOS 0x0f000000 /* Operating system specific values */ 395 #define SHF_MASKPROC 0xf0000000 /* Processor-specific values */ 396 397 /* 398 * Symbol Table 399 */ 400 typedef struct { 401 Elf32_Word st_name; /* Symbol name (.symtab index) */ 402 Elf32_Word st_value; /* value of symbol */ 403 Elf32_Word st_size; /* size of symbol */ 404 Elf_Byte st_info; /* type / binding attrs */ 405 Elf_Byte st_other; /* unused */ 406 Elf32_Half st_shndx; /* section index of symbol */ 407 } Elf32_Sym; 408 409 typedef struct { 410 Elf64_Half st_name; /* Symbol name (.symtab index) */ 411 Elf_Byte st_info; /* type / binding attrs */ 412 Elf_Byte st_other; /* unused */ 413 Elf64_Quarter st_shndx; /* section index of symbol */ 414 Elf64_Addr st_value; /* value of symbol */ 415 Elf64_Xword st_size; /* size of symbol */ 416 } Elf64_Sym; 417 418 /* Symbol Table index of the undefined symbol */ 419 #define ELF_SYM_UNDEFINED 0 420 421 /* st_info: Symbol Bindings */ 422 #define STB_LOCAL 0 /* local symbol */ 423 #define STB_GLOBAL 1 /* global symbol */ 424 #define STB_WEAK 2 /* weakly defined global symbol */ 425 #define STB_NUM 3 426 427 #define STB_LOOS 10 /* Operating system specific range */ 428 #define STB_HIOS 12 429 #define STB_LOPROC 13 /* Processor-specific range */ 430 #define STB_HIPROC 15 431 432 /* st_info: Symbol Types */ 433 #define STT_NOTYPE 0 /* Type not specified */ 434 #define STT_OBJECT 1 /* Associated with a data object */ 435 #define STT_FUNC 2 /* Associated with a function */ 436 #define STT_SECTION 3 /* Associated with a section */ 437 #define STT_FILE 4 /* Associated with a file name */ 438 #define STT_NUM 5 439 440 #define STT_LOOS 10 /* Operating system specific range */ 441 #define STT_HIOS 12 442 #define STT_LOPROC 13 /* Processor-specific range */ 443 #define STT_HIPROC 15 444 445 /* st_info utility macros */ 446 #define ELF32_ST_BIND(info) ((Elf32_Word)(info) >> 4) 447 #define ELF32_ST_TYPE(info) ((Elf32_Word)(info) & 0xf) 448 #define ELF32_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | ((type) & 0xf))) 449 450 #define ELF64_ST_BIND(info) ((Elf64_Xword)(info) >> 4) 451 #define ELF64_ST_TYPE(info) ((Elf64_Xword)(info) & 0xf) 452 #define ELF64_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | ((type) & 0xf))) 453 454 /* 455 * Special section indexes 456 */ 457 #define SHN_UNDEF 0 /* Undefined section */ 458 459 #define SHN_LORESERVE 0xff00 /* Reserved range */ 460 #define SHN_ABS 0xfff1 /* Absolute symbols */ 461 #define SHN_COMMON 0xfff2 /* Common symbols */ 462 #define SHN_HIRESERVE 0xffff 463 464 #define SHN_LOPROC 0xff00 /* Processor-specific range */ 465 #define SHN_HIPROC 0xff1f 466 #define SHN_LOOS 0xff20 /* Operating system specific range */ 467 #define SHN_HIOS 0xff3f 468 469 #define SHN_MIPS_ACOMMON 0xff00 470 #define SHN_MIPS_TEXT 0xff01 471 #define SHN_MIPS_DATA 0xff02 472 #define SHN_MIPS_SCOMMON 0xff03 473 474 /* 475 * Relocation Entries 476 */ 477 typedef struct { 478 Elf32_Word r_offset; /* where to do it */ 479 Elf32_Word r_info; /* index & type of relocation */ 480 } Elf32_Rel; 481 482 typedef struct { 483 Elf32_Word r_offset; /* where to do it */ 484 Elf32_Word r_info; /* index & type of relocation */ 485 Elf32_Sword r_addend; /* adjustment value */ 486 } Elf32_Rela; 487 488 /* r_info utility macros */ 489 #define ELF32_R_SYM(info) ((info) >> 8) 490 #define ELF32_R_TYPE(info) ((info) & 0xff) 491 #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) 492 493 typedef struct { 494 Elf64_Addr r_offset; /* where to do it */ 495 Elf64_Xword r_info; /* index & type of relocation */ 496 } Elf64_Rel; 497 498 typedef struct { 499 Elf64_Addr r_offset; /* where to do it */ 500 Elf64_Xword r_info; /* index & type of relocation */ 501 Elf64_Sxword r_addend; /* adjustment value */ 502 } Elf64_Rela; 503 504 /* r_info utility macros */ 505 #define ELF64_R_SYM(info) ((info) >> 32) 506 #define ELF64_R_TYPE(info) ((info) & 0xffffffff) 507 #define ELF64_R_INFO(sym,type) (((sym) << 32) + (type)) 508 509 /* 510 * Dynamic Section structure array 511 */ 512 typedef struct { 513 Elf32_Word d_tag; /* entry tag value */ 514 union { 515 Elf32_Addr d_ptr; 516 Elf32_Word d_val; 517 } d_un; 518 } Elf32_Dyn; 519 520 typedef struct { 521 Elf64_Xword d_tag; /* entry tag value */ 522 union { 523 Elf64_Addr d_ptr; 524 Elf64_Xword d_val; 525 } d_un; 526 } Elf64_Dyn; 527 528 /* d_tag */ 529 #define DT_NULL 0 /* Marks end of dynamic array */ 530 #define DT_NEEDED 1 /* Name of needed library (DT_STRTAB offset) */ 531 #define DT_PLTRELSZ 2 /* Size, in bytes, of relocations in PLT */ 532 #define DT_PLTGOT 3 /* Address of PLT and/or GOT */ 533 #define DT_HASH 4 /* Address of symbol hash table */ 534 #define DT_STRTAB 5 /* Address of string table */ 535 #define DT_SYMTAB 6 /* Address of symbol table */ 536 #define DT_RELA 7 /* Address of Rela relocation table */ 537 #define DT_RELASZ 8 /* Size, in bytes, of DT_RELA table */ 538 #define DT_RELAENT 9 /* Size, in bytes, of one DT_RELA entry */ 539 #define DT_STRSZ 10 /* Size, in bytes, of DT_STRTAB table */ 540 #define DT_SYMENT 11 /* Size, in bytes, of one DT_SYMTAB entry */ 541 #define DT_INIT 12 /* Address of initialization function */ 542 #define DT_FINI 13 /* Address of termination function */ 543 #define DT_SONAME 14 /* Shared object name (DT_STRTAB offset) */ 544 #define DT_RPATH 15 /* Library search path (DT_STRTAB offset) */ 545 #define DT_SYMBOLIC 16 /* Start symbol search within local object */ 546 #define DT_REL 17 /* Address of Rel relocation table */ 547 #define DT_RELSZ 18 /* Size, in bytes, of DT_REL table */ 548 #define DT_RELENT 19 /* Size, in bytes, of one DT_REL entry */ 549 #define DT_PLTREL 20 /* Type of PLT relocation entries */ 550 #define DT_DEBUG 21 /* Used for debugging; unspecified */ 551 #define DT_TEXTREL 22 /* Relocations might modify non-writable seg */ 552 #define DT_JMPREL 23 /* Address of relocations associated with PLT */ 553 #define DT_BIND_NOW 24 /* Process all relocations at load-time */ 554 #define DT_INIT_ARRAY 25 /* Address of initialization function array */ 555 #define DT_FINI_ARRAY 26 /* Size, in bytes, of DT_INIT_ARRAY array */ 556 #define DT_INIT_ARRAYSZ 27 /* Address of termination function array */ 557 #define DT_FINI_ARRAYSZ 28 /* Size, in bytes, of DT_FINI_ARRAY array*/ 558 #define DT_NUM 29 559 560 #define DT_LOOS 0x60000000 /* Operating system specific range */ 561 #define DT_HIOS 0x6fffffff 562 #define DT_LOPROC 0x70000000 /* Processor-specific range */ 563 #define DT_HIPROC 0x7fffffff 564 565 /* 566 * Auxiliary Vectors 567 */ 568 typedef struct { 569 Elf32_Word a_type; /* 32-bit id */ 570 Elf32_Word a_v; /* 32-bit id */ 571 } Aux32Info; 572 573 typedef struct { 574 Elf64_Half a_type; /* 32-bit id */ 575 Elf64_Xword a_v; /* 64-bit id */ 576 } Aux64Info; 577 578 /* a_type */ 579 #define AT_NULL 0 /* Marks end of array */ 580 #define AT_IGNORE 1 /* No meaning, a_un is undefined */ 581 #define AT_EXECFD 2 /* Open file descriptor of object file */ 582 #define AT_PHDR 3 /* &phdr[0] */ 583 #define AT_PHENT 4 /* sizeof(phdr[0]) */ 584 #define AT_PHNUM 5 /* # phdr entries */ 585 #define AT_PAGESZ 6 /* PAGESIZE */ 586 #define AT_BASE 7 /* Interpreter base addr */ 587 #define AT_FLAGS 8 /* Processor flags */ 588 #define AT_ENTRY 9 /* Entry address of executable */ 589 #define AT_DCACHEBSIZE 10 /* Data cache block size */ 590 #define AT_ICACHEBSIZE 11 /* Instruction cache block size */ 591 #define AT_UCACHEBSIZE 12 /* Unified cache block size */ 592 593 /* Vendor specific */ 594 #define AT_MIPS_NOTELF 10 /* XXX a_val != 0 -> MIPS XCOFF executable */ 595 596 #define AT_EUID 2000 /* euid (solaris compatible numbers) */ 597 #define AT_RUID 2001 /* ruid (solaris compatible numbers) */ 598 #define AT_EGID 2002 /* egid (solaris compatible numbers) */ 599 #define AT_RGID 2003 /* rgid (solaris compatible numbers) */ 600 601 /* Solaris kernel specific */ 602 #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */ 603 #define AT_SUN_LDSHDR 2005 /* dynamic linker's section header */ 604 #define AT_SUN_LDNAME 2006 /* dynamic linker's name */ 605 #define AT_SUN_LPGSIZE 2007 /* large pagesize */ 606 607 /* Other information */ 608 #define AT_SUN_PLATFORM 2008 /* sysinfo(SI_PLATFORM) */ 609 #define AT_SUN_HWCAP 2009 /* process hardware capabilities */ 610 #define AT_SUN_IFLUSH 2010 /* do we need to flush the instruction cache? */ 611 #define AT_SUN_CPU 2011 /* CPU name */ 612 /* ibcs2 emulation band aid */ 613 #define AT_SUN_EMUL_ENTRY 2012 /* coff entry point */ 614 #define AT_SUN_EMUL_EXECFD 2013 /* coff file descriptor */ 615 /* Executable's fully resolved name */ 616 #define AT_SUN_EXECNAME 2014 617 618 /* 619 * Note Headers 620 */ 621 typedef struct { 622 Elf32_Word n_namesz; 623 Elf32_Word n_descsz; 624 Elf32_Word n_type; 625 } Elf32_Nhdr; 626 627 typedef struct { 628 Elf64_Half n_namesz; 629 Elf64_Half n_descsz; 630 Elf64_Half n_type; 631 } Elf64_Nhdr; 632 633 #define ELF_NOTE_TYPE_ABI_TAG 1 634 635 /* GNU-specific note name and description sizes */ 636 #define ELF_NOTE_ABI_NAMESZ 4 637 #define ELF_NOTE_ABI_DESCSZ 16 638 /* GNU-specific note name */ 639 #define ELF_NOTE_ABI_NAME "GNU\0" 640 641 /* GNU-specific OS/version value stuff */ 642 #define ELF_NOTE_ABI_OS_LINUX 0 643 #define ELF_NOTE_ABI_OS_HURD 1 644 #define ELF_NOTE_ABI_OS_SOLARIS 2 645 646 /* NetBSD-specific note type: Emulation name. desc is emul name string. */ 647 #define ELF_NOTE_TYPE_NETBSD_TAG 1 648 649 /* NetBSD-specific note name and description sizes */ 650 #define ELF_NOTE_NETBSD_NAMESZ 7 651 #define ELF_NOTE_NETBSD_DESCSZ 4 652 /* NetBSD-specific note name */ 653 #define ELF_NOTE_NETBSD_NAME "NetBSD\0\0" 654 655 /* 656 * NetBSD-specific core file information. 657 * 658 * NetBSD ELF core files use notes to provide information about 659 * the process's state. The note name is "NetBSD-CORE" for 660 * information that is global to the process, and "NetBSD-CORE@nn", 661 * where "nn" is the lwpid of the LWP that the information belongs 662 * to (such as register state). 663 * 664 * We use the following note identifiers: 665 * 666 * ELF_NOTE_NETBSD_CORE_PROCINFO 667 * Note is a "netbsd_elfcore_procinfo" structure. 668 * 669 * We also use ptrace(2) request numbers (the ones that exist in 670 * machine-dependent space) to identify register info notes. The 671 * info in such notes is in the same format that ptrace(2) would 672 * export that information. 673 * 674 * Please try to keep the members of this structure nicely aligned, 675 * and if you add elements, add them to the end and bump the version. 676 */ 677 678 #define ELF_NOTE_NETBSD_CORE_NAME "NetBSD-CORE" 679 680 #define ELF_NOTE_NETBSD_CORE_PROCINFO 1 681 682 #define NETBSD_ELFCORE_PROCINFO_VERSION 1 683 684 struct netbsd_elfcore_procinfo { 685 /* Version 1 fields start here. */ 686 uint32_t cpi_version; /* netbsd_elfcore_procinfo version */ 687 uint32_t cpi_cpisize; /* sizeof(netbsd_elfcore_procinfo) */ 688 uint32_t cpi_signo; /* killing signal */ 689 uint32_t cpi_sigcode; /* signal code */ 690 uint32_t cpi_sigpend[4]; /* pending signals */ 691 uint32_t cpi_sigmask[4]; /* blocked signals */ 692 uint32_t cpi_sigignore[4];/* blocked signals */ 693 uint32_t cpi_sigcatch[4];/* blocked signals */ 694 int32_t cpi_pid; /* process ID */ 695 int32_t cpi_ppid; /* parent process ID */ 696 int32_t cpi_pgrp; /* process group ID */ 697 int32_t cpi_sid; /* session ID */ 698 uint32_t cpi_ruid; /* real user ID */ 699 uint32_t cpi_euid; /* effective user ID */ 700 uint32_t cpi_svuid; /* saved user ID */ 701 uint32_t cpi_rgid; /* real group ID */ 702 uint32_t cpi_egid; /* effective group ID */ 703 uint32_t cpi_svgid; /* saved group ID */ 704 uint32_t cpi_nlwps; /* number of LWPs */ 705 int8_t cpi_name[32]; /* copy of p->p_comm */ 706 /* Add version 2 fields below here. */ 707 int32_t cpi_siglwp; /* LWP target of killing signal */ 708 }; 709 710 #if defined(ELFSIZE) 711 #define CONCAT(x,y) __CONCAT(x,y) 712 #define ELFNAME(x) CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x))) 713 #define ELFNAME2(x,y) CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y)))) 714 #define ELFNAMEEND(x) CONCAT(x,CONCAT(_elf,ELFSIZE)) 715 #define ELFDEFNNAME(x) CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x))) 716 #endif 717 718 #if defined(ELFSIZE) && (ELFSIZE == 32) 719 #define Elf_Ehdr Elf32_Ehdr 720 #define Elf_Phdr Elf32_Phdr 721 #define Elf_Shdr Elf32_Shdr 722 #define Elf_Sym Elf32_Sym 723 #define Elf_Rel Elf32_Rel 724 #define Elf_Rela Elf32_Rela 725 #define Elf_Dyn Elf32_Dyn 726 #define Elf_Word Elf32_Word 727 #define Elf_Sword Elf32_Sword 728 #define Elf_Addr Elf32_Addr 729 #define Elf_Off Elf32_Off 730 #define Elf_Nhdr Elf32_Nhdr 731 732 #define ELF_R_SYM ELF32_R_SYM 733 #define ELF_R_TYPE ELF32_R_TYPE 734 #define ELFCLASS ELFCLASS32 735 736 #define ELF_ST_BIND ELF32_ST_BIND 737 #define ELF_ST_TYPE ELF32_ST_TYPE 738 #define ELF_ST_INFO ELF32_ST_INFO 739 740 #define AuxInfo Aux32Info 741 #elif defined(ELFSIZE) && (ELFSIZE == 64) 742 #define Elf_Ehdr Elf64_Ehdr 743 #define Elf_Phdr Elf64_Phdr 744 #define Elf_Shdr Elf64_Shdr 745 #define Elf_Sym Elf64_Sym 746 #define Elf_Rel Elf64_Rel 747 #define Elf_Rela Elf64_Rela 748 #define Elf_Dyn Elf64_Dyn 749 #define Elf_Word Elf64_Word 750 #define Elf_Sword Elf64_Sword 751 #define Elf_Addr Elf64_Addr 752 #define Elf_Off Elf64_Off 753 #define Elf_Nhdr Elf64_Nhdr 754 755 #define ELF_R_SYM ELF64_R_SYM 756 #define ELF_R_TYPE ELF64_R_TYPE 757 #define ELFCLASS ELFCLASS64 758 759 #define ELF_ST_BIND ELF64_ST_BIND 760 #define ELF_ST_TYPE ELF64_ST_TYPE 761 #define ELF_ST_INFO ELF64_ST_INFO 762 763 #define AuxInfo Aux64Info 764 #endif 765 766 #ifdef _KERNEL 767 768 #define ELF_AUX_ENTRIES 12 /* Size of aux array passed to loader */ 769 #define ELF32_NO_ADDR (~(Elf32_Addr)0) /* Indicates addr. not yet filled in */ 770 #define ELF32_LINK_ADDR ((Elf32_Addr)-2) /* advises to use link address */ 771 #define ELF64_NO_ADDR (~(Elf64_Addr)0) /* Indicates addr. not yet filled in */ 772 #define ELF64_LINK_ADDR ((Elf64_Addr)-2) /* advises to use link address */ 773 774 #if defined(ELFSIZE) && (ELFSIZE == 64) 775 #define ELF_NO_ADDR ELF64_NO_ADDR 776 #define ELF_LINK_ADDR ELF64_LINK_ADDR 777 #elif defined(ELFSIZE) && (ELFSIZE == 32) 778 #define ELF_NO_ADDR ELF32_NO_ADDR 779 #define ELF_LINK_ADDR ELF32_LINK_ADDR 780 #endif 781 782 #ifndef ELF32_EHDR_FLAGS_OK 783 #define ELF32_EHDR_FLAGS_OK(eh) 1 784 #endif 785 786 #ifndef ELF64_EHDR_FLAGS_OK 787 #define ELF64_EHDR_FLAGS_OK(eh) 1 788 #endif 789 790 #if defined(ELFSIZE) && (ELFSIZE == 64) 791 #define ELF_EHDR_FLAGS_OK(eh) ELF64_EHDR_FLAGS_OK(eh) 792 #else 793 #define ELF_EHDR_FLAGS_OK(eh) ELF32_EHDR_FLAGS_OK(eh) 794 #endif 795 796 #if defined(ELFSIZE) 797 struct elf_args { 798 Elf_Addr arg_entry; /* program entry point */ 799 Elf_Addr arg_interp; /* Interpreter load address */ 800 Elf_Addr arg_phaddr; /* program header address */ 801 Elf_Addr arg_phentsize; /* Size of program header */ 802 Elf_Addr arg_phnum; /* Number of program headers */ 803 }; 804 #endif 805 806 #ifndef _LKM 807 #include "opt_execfmt.h" 808 #endif 809 810 #ifdef EXEC_ELF32 811 int exec_elf32_makecmds(struct proc *, struct exec_package *); 812 int elf32_copyargs(struct proc *, struct exec_package *, 813 struct ps_strings *, char **, void *); 814 815 int coredump_elf32(struct lwp *, struct vnode *, struct ucred *); 816 int coredump_writenote_elf32(struct proc *, struct vnode *, 817 struct ucred *, off_t, Elf32_Nhdr *, const char *, void *); 818 819 int elf32_check_header(Elf32_Ehdr *, int); 820 #endif 821 822 #ifdef EXEC_ELF64 823 int exec_elf64_makecmds(struct proc *, struct exec_package *); 824 int elf64_read_from(struct proc *, struct vnode *, u_long, caddr_t, int); 825 int elf64_copyargs(struct proc *, struct exec_package *, 826 struct ps_strings *, char **, void *); 827 828 int coredump_elf64 __P((struct lwp *, struct vnode *, struct ucred *)); 829 int coredump_writenote_elf64 __P((struct proc *, struct vnode *, 830 struct ucred *, off_t, Elf64_Nhdr *, const char *, void *)); 831 832 int elf64_check_header(Elf64_Ehdr *, int); 833 #endif 834 835 #endif /* _KERNEL */ 836 837 #endif /* !_SYS_EXEC_ELF_H_ */ 838
Indexes created Thu Oct 02 14:10:14 GMT 2025