1 /* $NetBSD: exec_elf.h,v 1.66 2002/11/27 13:47:15 wiz 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 #include <machine/elf_machdep.h> 57 58 typedef uint8_t Elf_Byte; 59 60 typedef uint32_t Elf32_Addr; 61 #define ELF32_FSZ_ADDR 4 62 typedef uint32_t Elf32_Off; 63 #define ELF32_FSZ_OFF 4 64 typedef int32_t Elf32_Sword; 65 #define ELF32_FSZ_SWORD 4 66 typedef uint32_t Elf32_Word; 67 #define ELF32_FSZ_WORD 4 68 typedef uint16_t Elf32_Half; 69 #define ELF32_FSZ_HALF 2 70 71 typedef uint64_t Elf64_Addr; 72 #define ELF64_FSZ_ADDR 8 73 typedef uint64_t Elf64_Off; 74 #define ELF64_FSZ_OFF 8 75 typedef int32_t Elf64_Shalf; 76 #define ELF64_FSZ_SHALF 4 77 78 #ifndef ELF64_FSZ_SWORD 79 typedef int32_t Elf64_Sword; 80 #define ELF64_FSZ_SWORD 4 81 #endif /* ELF64_FSZ_SWORD */ 82 #ifndef ELF64_FSZ_WORD 83 typedef uint32_t Elf64_Word; 84 #define ELF64_FSZ_WORD 4 85 #endif /* ELF64_FSZ_WORD */ 86 87 typedef int64_t Elf64_Sxword; 88 #define ELF64_FSZ_XWORD 8 89 typedef uint64_t Elf64_Xword; 90 #define ELF64_FSZ_XWORD 8 91 typedef uint32_t Elf64_Half; 92 #define ELF64_FSZ_HALF 4 93 typedef uint16_t Elf64_Quarter; 94 #define ELF64_FSZ_QUARTER 2 95 96 /* 97 * ELF Header 98 */ 99 #define ELF_NIDENT 16 100 101 typedef struct { 102 unsigned char e_ident[ELF_NIDENT]; /* Id bytes */ 103 Elf32_Half e_type; /* file type */ 104 Elf32_Half e_machine; /* machine type */ 105 Elf32_Word e_version; /* version number */ 106 Elf32_Addr e_entry; /* entry point */ 107 Elf32_Off e_phoff; /* Program hdr offset */ 108 Elf32_Off e_shoff; /* Section hdr offset */ 109 Elf32_Word e_flags; /* Processor flags */ 110 Elf32_Half e_ehsize; /* sizeof ehdr */ 111 Elf32_Half e_phentsize; /* Program header entry size */ 112 Elf32_Half e_phnum; /* Number of program headers */ 113 Elf32_Half e_shentsize; /* Section header entry size */ 114 Elf32_Half e_shnum; /* Number of section headers */ 115 Elf32_Half e_shstrndx; /* String table index */ 116 } Elf32_Ehdr; 117 118 typedef struct { 119 unsigned char e_ident[ELF_NIDENT]; /* Id bytes */ 120 Elf64_Quarter e_type; /* file type */ 121 Elf64_Quarter e_machine; /* machine type */ 122 Elf64_Half e_version; /* version number */ 123 Elf64_Addr e_entry; /* entry point */ 124 Elf64_Off e_phoff; /* Program hdr offset */ 125 Elf64_Off e_shoff; /* Section hdr offset */ 126 Elf64_Half e_flags; /* Processor flags */ 127 Elf64_Quarter e_ehsize; /* sizeof ehdr */ 128 Elf64_Quarter e_phentsize; /* Program header entry size */ 129 Elf64_Quarter e_phnum; /* Number of program headers */ 130 Elf64_Quarter e_shentsize; /* Section header entry size */ 131 Elf64_Quarter e_shnum; /* Number of section headers */ 132 Elf64_Quarter e_shstrndx; /* String table index */ 133 } Elf64_Ehdr; 134 135 /* e_ident offsets */ 136 #define EI_MAG0 0 /* '\177' */ 137 #define EI_MAG1 1 /* 'E' */ 138 #define EI_MAG2 2 /* 'L' */ 139 #define EI_MAG3 3 /* 'F' */ 140 #define EI_CLASS 4 /* File class */ 141 #define EI_DATA 5 /* Data encoding */ 142 #define EI_VERSION 6 /* File version */ 143 #define EI_OSABI 7 /* Operating system/ABI identification */ 144 #define EI_ABIVERSION 8 /* ABI version */ 145 #define EI_PAD 9 /* Start of padding bytes up to EI_NIDENT*/ 146 147 /* e_ident[ELFMAG0,ELFMAG3] */ 148 #define ELFMAG0 0x7f 149 #define ELFMAG1 'E' 150 #define ELFMAG2 'L' 151 #define ELFMAG3 'F' 152 #define ELFMAG "\177ELF" 153 #define SELFMAG 4 154 155 /* e_ident[EI_CLASS] */ 156 #define ELFCLASSNONE 0 /* Invalid class */ 157 #define ELFCLASS32 1 /* 32-bit objects */ 158 #define ELFCLASS64 2 /* 64-bit objects */ 159 #define ELFCLASSNUM 3 160 161 /* e_ident[EI_DATA] */ 162 #define ELFDATANONE 0 /* Invalid data encoding */ 163 #define ELFDATA2LSB 1 /* 2's complement values, LSB first */ 164 #define ELFDATA2MSB 2 /* 2's complement values, MSB first */ 165 166 /* e_ident[EI_VERSION] */ 167 #define EV_NONE 0 /* Invalid version */ 168 #define EV_CURRENT 1 /* Current version */ 169 #define EV_NUM 2 170 171 /* e_ident[EI_OSABI] */ 172 #define ELFOSABI_SYSV 0 /* UNIX System V ABI */ 173 #define ELFOSABI_HPUX 1 /* HP-UX operating system */ 174 #define ELFOSABI_NETBSD 2 /* NetBSD */ 175 #define ELFOSABI_LINUX 3 /* GNU/Linux */ 176 #define ELFOSABI_HURD 4 /* GNU/Hurd */ 177 #define ELFOSABI_86OPEN 5 /* 86Open */ 178 #define ELFOSABI_SOLARIS 6 /* Solaris */ 179 #define ELFOSABI_MONTEREY 7 /* Monterey */ 180 #define ELFOSABI_IRIX 8 /* IRIX */ 181 #define ELFOSABI_FREEBSD 9 /* FreeBSD */ 182 #define ELFOSABI_TRU64 10 /* TRU64 UNIX */ 183 #define ELFOSABI_MODESTO 11 /* Novell Modesto */ 184 #define ELFOSABI_OPENBSD 12 /* OpenBSD */ 185 /* Unofficial OSABIs follow */ 186 #define ELFOSABI_ARM 97 /* ARM */ 187 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ 188 189 /* e_type */ 190 #define ET_NONE 0 /* No file type */ 191 #define ET_REL 1 /* Relocatable file */ 192 #define ET_EXEC 2 /* Executable file */ 193 #define ET_DYN 3 /* Shared object file */ 194 #define ET_CORE 4 /* Core file */ 195 #define ET_NUM 5 196 197 #define ET_LOOS 0xfe00 /* Operating system specific range */ 198 #define ET_HIOS 0xfeff 199 #define ET_LOPROC 0xff00 /* Processor-specific range */ 200 #define ET_HIPROC 0xffff 201 202 /* e_machine */ 203 #define EM_NONE 0 /* No machine */ 204 #define EM_M32 1 /* AT&T WE 32100 */ 205 #define EM_SPARC 2 /* SPARC */ 206 #define EM_386 3 /* Intel 80386 */ 207 #define EM_68K 4 /* Motorola 68000 */ 208 #define EM_88K 5 /* Motorola 88000 */ 209 #define EM_486 6 /* Intel 80486 */ 210 #define EM_860 7 /* Intel 80860 */ 211 #define EM_MIPS 8 /* MIPS I Architecture */ 212 #define EM_S370 9 /* Amdahl UTS on System/370 */ 213 #define EM_MIPS_RS3_LE 10 /* MIPS RS3000 Little-endian */ 214 /* 11-14 - Reserved */ 215 #define EM_RS6000 11 /* IBM RS/6000 XXX reserved */ 216 #define EM_PARISC 15 /* Hewlett-Packard PA-RISC */ 217 #define EM_NCUBE 16 /* NCube XXX reserved */ 218 #define EM_VPP500 17 /* Fujitsu VPP500 */ 219 #define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */ 220 #define EM_960 19 /* Intel 80960 */ 221 #define EM_PPC 20 /* PowerPC */ 222 #define EM_PPC64 21 /* 64-bit PowerPC */ 223 /* 22-35 - Reserved */ 224 #define EM_V800 36 /* NEC V800 */ 225 #define EM_FR20 37 /* Fujitsu FR20 */ 226 #define EM_RH32 38 /* TRW RH-32 */ 227 #define EM_RCE 39 /* Motorola RCE */ 228 #define EM_ARM 40 /* Advanced RISC Machines ARM */ 229 #define EM_ALPHA 41 /* DIGITAL Alpha */ 230 #define EM_SH 42 /* Hitachi Super-H */ 231 #define EM_SPARCV9 43 /* SPARC Version 9 */ 232 #define EM_TRICORE 44 /* Siemens Tricore */ 233 #define EM_ARC 45 /* Argonaut RISC Core */ 234 #define EM_H8_300 46 /* Hitachi H8/300 */ 235 #define EM_H8_300H 47 /* Hitachi H8/300H */ 236 #define EM_H8S 48 /* Hitachi H8S */ 237 #define EM_H8_500 49 /* Hitachi H8/500 */ 238 #define EM_IA_64 50 /* Intel Merced Processor */ 239 #define EM_MIPS_X 51 /* Stanford MIPS-X */ 240 #define EM_COLDFIRE 52 /* Motorola Coldfire */ 241 #define EM_68HC12 53 /* Motorola MC68HC12 */ 242 #define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator */ 243 #define EM_PCP 55 /* Siemens PCP */ 244 #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */ 245 #define EM_NDR1 57 /* Denso NDR1 microprocessor */ 246 #define EM_STARCORE 58 /* Motorola Star*Core processor */ 247 #define EM_ME16 59 /* Toyota ME16 processor */ 248 #define EM_ST100 60 /* STMicroelectronics ST100 processor */ 249 #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded family processor */ 250 #define EM_X86_64 62 /* AMD x86-64 architecture */ 251 #define EM_PDSP 63 /* Sony DSP Processor */ 252 #define EM_PDP10 64 /* Digital Equipment Corp. PDP-10 */ 253 #define EM_PDP11 65 /* Digital Equipment Corp. PDP-11 */ 254 #define EM_FX66 66 /* Siemens FX66 microcontroller */ 255 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 bit microcontroller */ 256 #define EM_ST7 68 /* STMicroelectronics ST7 8-bit microcontroller */ 257 #define EM_68HC16 69 /* Motorola MC68HC16 Microcontroller */ 258 #define EM_68HC11 70 /* Motorola MC68HC11 Microcontroller */ 259 #define EM_68HC08 71 /* Motorola MC68HC08 Microcontroller */ 260 #define EM_68HC05 72 /* Motorola MC68HC05 Microcontroller */ 261 #define EM_SVX 73 /* Silicon Graphics SVx */ 262 #define EM_ST19 74 /* STMicroelectronics ST19 8-bit cpu */ 263 #define EM_VAX 75 /* Digital VAX */ 264 #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ 265 #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded cpu */ 266 #define EM_FIREPATH 78 /* Element 14 64-bit DSP processor */ 267 #define EM_ZSP 79 /* LSI Logic's 16-bit DSP processor */ 268 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ 269 #define EM_HUANY 81 /* Harvard's machine-independent format */ 270 #define EM_PRISM 82 /* SiTera Prism */ 271 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ 272 #define EM_FR30 84 /* Fujitsu FR30 */ 273 #define EM_D10V 85 /* Mitsubishi D10V */ 274 #define EM_D30V 86 /* Mitsubishi D30V */ 275 #define EM_V850 87 /* NEC v850 */ 276 #define EM_M32R 88 /* Mitsubishi M32R */ 277 #define EM_MN10300 89 /* Matsushita MN10300 */ 278 #define EM_MN10200 90 /* Matsushita MN10200 */ 279 #define EM_PJ 91 /* picoJava */ 280 #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ 281 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ 282 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ 283 #define EM_NS32K 97 /* National Semiconductor 32000 series */ 284 285 /* Unofficial machine types follow */ 286 #define EM_ALPHA_EXP 36902 /* used by NetBSD/alpha; obsolete */ 287 #define EM_NUM 36903 288 289 /* 290 * Program Header 291 */ 292 typedef struct { 293 Elf32_Word p_type; /* entry type */ 294 Elf32_Off p_offset; /* offset */ 295 Elf32_Addr p_vaddr; /* virtual address */ 296 Elf32_Addr p_paddr; /* physical address */ 297 Elf32_Word p_filesz; /* file size */ 298 Elf32_Word p_memsz; /* memory size */ 299 Elf32_Word p_flags; /* flags */ 300 Elf32_Word p_align; /* memory & file alignment */ 301 } Elf32_Phdr; 302 303 typedef struct { 304 Elf64_Half p_type; /* entry type */ 305 Elf64_Half p_flags; /* flags */ 306 Elf64_Off p_offset; /* offset */ 307 Elf64_Addr p_vaddr; /* virtual address */ 308 Elf64_Addr p_paddr; /* physical address */ 309 Elf64_Xword p_filesz; /* file size */ 310 Elf64_Xword p_memsz; /* memory size */ 311 Elf64_Xword p_align; /* memory & file alignment */ 312 } Elf64_Phdr; 313 314 /* p_type */ 315 #define PT_NULL 0 /* Program header table entry unused */ 316 #define PT_LOAD 1 /* Loadable program segment */ 317 #define PT_DYNAMIC 2 /* Dynamic linking information */ 318 #define PT_INTERP 3 /* Program interpreter */ 319 #define PT_NOTE 4 /* Auxiliary information */ 320 #define PT_SHLIB 5 /* Reserved, unspecified semantics */ 321 #define PT_PHDR 6 /* Entry for header table itself */ 322 #define PT_NUM 7 323 324 #define PT_LOOS 0x60000000 /* OS-specific range */ 325 #define PT_HIOS 0x6fffffff 326 #define PT_LOPROC 0x70000000 /* Processor-specific range */ 327 #define PT_HIPROC 0x7fffffff 328 329 #define PT_MIPS_REGINFO 0x70000000 330 331 /* p_flags */ 332 #define PF_R 0x4 /* Segment is readable */ 333 #define PF_W 0x2 /* Segment is writable */ 334 #define PF_X 0x1 /* Segment is executable */ 335 336 #define PF_MASKOS 0x0ff00000 /* Operating system specific values */ 337 #define PF_MASKPROC 0xf0000000 /* Processor-specific values */ 338 339 /* 340 * Section Headers 341 */ 342 typedef struct { 343 Elf32_Word sh_name; /* section name (.shstrtab index) */ 344 Elf32_Word sh_type; /* section type */ 345 Elf32_Word sh_flags; /* section flags */ 346 Elf32_Addr sh_addr; /* virtual address */ 347 Elf32_Off sh_offset; /* file offset */ 348 Elf32_Word sh_size; /* section size */ 349 Elf32_Word sh_link; /* link to another */ 350 Elf32_Word sh_info; /* misc info */ 351 Elf32_Word sh_addralign; /* memory alignment */ 352 Elf32_Word sh_entsize; /* table entry size */ 353 } Elf32_Shdr; 354 355 typedef struct { 356 Elf64_Half sh_name; /* section name (.shstrtab index) */ 357 Elf64_Half sh_type; /* section type */ 358 Elf64_Xword sh_flags; /* section flags */ 359 Elf64_Addr sh_addr; /* virtual address */ 360 Elf64_Off sh_offset; /* file offset */ 361 Elf64_Xword sh_size; /* section size */ 362 Elf64_Half sh_link; /* link to another */ 363 Elf64_Half sh_info; /* misc info */ 364 Elf64_Xword sh_addralign; /* memory alignment */ 365 Elf64_Xword sh_entsize; /* table entry size */ 366 } Elf64_Shdr; 367 368 /* sh_type */ 369 #define SHT_NULL 0 /* Section header table entry unused */ 370 #define SHT_PROGBITS 1 /* Program information */ 371 #define SHT_SYMTAB 2 /* Symbol table */ 372 #define SHT_STRTAB 3 /* String table */ 373 #define SHT_RELA 4 /* Relocation information w/ addend */ 374 #define SHT_HASH 5 /* Symbol hash table */ 375 #define SHT_DYNAMIC 6 /* Dynamic linking information */ 376 #define SHT_NOTE 7 /* Auxiliary information */ 377 #define SHT_NOBITS 8 /* No space allocated in file image */ 378 #define SHT_REL 9 /* Relocation information w/o addend */ 379 #define SHT_SHLIB 10 /* Reserved, unspecified semantics */ 380 #define SHT_DYNSYM 11 /* Symbol table for dynamic linker */ 381 #define SHT_NUM 12 382 383 #define SHT_LOOS 0x60000000 /* Operating system specific range */ 384 #define SHT_HIOS 0x6fffffff 385 #define SHT_LOPROC 0x70000000 /* Processor-specific range */ 386 #define SHT_HIPROC 0x7fffffff 387 #define SHT_LOUSER 0x80000000 /* Application-specific range */ 388 #define SHT_HIUSER 0xffffffff 389 390 /* sh_flags */ 391 #define SHF_WRITE 0x1 /* Section contains writable data */ 392 #define SHF_ALLOC 0x2 /* Section occupies memory */ 393 #define SHF_EXECINSTR 0x4 /* Section contains executable insns */ 394 395 #define SHF_MASKOS 0x0f000000 /* Operating system specific values */ 396 #define SHF_MASKPROC 0xf0000000 /* Processor-specific values */ 397 398 /* 399 * Symbol Table 400 */ 401 typedef struct { 402 Elf32_Word st_name; /* Symbol name (.symtab index) */ 403 Elf32_Word st_value; /* value of symbol */ 404 Elf32_Word st_size; /* size of symbol */ 405 Elf_Byte st_info; /* type / binding attrs */ 406 Elf_Byte st_other; /* unused */ 407 Elf32_Half st_shndx; /* section index of symbol */ 408 } Elf32_Sym; 409 410 typedef struct { 411 Elf64_Half st_name; /* Symbol name (.symtab index) */ 412 Elf_Byte st_info; /* type / binding attrs */ 413 Elf_Byte st_other; /* unused */ 414 Elf64_Quarter st_shndx; /* section index of symbol */ 415 Elf64_Addr st_value; /* value of symbol */ 416 Elf64_Xword st_size; /* size of symbol */ 417 } Elf64_Sym; 418 419 /* Symbol Table index of the undefined symbol */ 420 #define ELF_SYM_UNDEFINED 0 421 422 /* st_info: Symbol Bindings */ 423 #define STB_LOCAL 0 /* local symbol */ 424 #define STB_GLOBAL 1 /* global symbol */ 425 #define STB_WEAK 2 /* weakly defined global symbol */ 426 #define STB_NUM 3 427 428 #define STB_LOOS 10 /* Operating system specific range */ 429 #define STB_HIOS 12 430 #define STB_LOPROC 13 /* Processor-specific range */ 431 #define STB_HIPROC 15 432 433 /* st_info: Symbol Types */ 434 #define STT_NOTYPE 0 /* Type not specified */ 435 #define STT_OBJECT 1 /* Associated with a data object */ 436 #define STT_FUNC 2 /* Associated with a function */ 437 #define STT_SECTION 3 /* Associated with a section */ 438 #define STT_FILE 4 /* Associated with a file name */ 439 #define STT_NUM 5 440 441 #define STT_LOOS 10 /* Operating system specific range */ 442 #define STT_HIOS 12 443 #define STT_LOPROC 13 /* Processor-specific range */ 444 #define STT_HIPROC 15 445 446 /* st_info utility macros */ 447 #define ELF32_ST_BIND(info) ((Elf32_Word)(info) >> 4) 448 #define ELF32_ST_TYPE(info) ((Elf32_Word)(info) & 0xf) 449 #define ELF32_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | ((type) & 0xf))) 450 451 #define ELF64_ST_BIND(info) ((Elf64_Xword)(info) >> 4) 452 #define ELF64_ST_TYPE(info) ((Elf64_Xword)(info) & 0xf) 453 #define ELF64_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | ((type) & 0xf))) 454 455 /* 456 * Special section indexes 457 */ 458 #define SHN_UNDEF 0 /* Undefined section */ 459 460 #define SHN_LORESERVE 0xff00 /* Reserved range */ 461 #define SHN_ABS 0xfff1 /* Absolute symbols */ 462 #define SHN_COMMON 0xfff2 /* Common symbols */ 463 #define SHN_HIRESERVE 0xffff 464 465 #define SHN_LOPROC 0xff00 /* Processor-specific range */ 466 #define SHN_HIPROC 0xff1f 467 #define SHN_LOOS 0xff20 /* Operating system specific range */ 468 #define SHN_HIOS 0xff3f 469 470 #define SHN_MIPS_ACOMMON 0xff00 471 #define SHN_MIPS_TEXT 0xff01 472 #define SHN_MIPS_DATA 0xff02 473 #define SHN_MIPS_SCOMMON 0xff03 474 475 /* 476 * Relocation Entries 477 */ 478 typedef struct { 479 Elf32_Word r_offset; /* where to do it */ 480 Elf32_Word r_info; /* index & type of relocation */ 481 } Elf32_Rel; 482 483 typedef struct { 484 Elf32_Word r_offset; /* where to do it */ 485 Elf32_Word r_info; /* index & type of relocation */ 486 Elf32_Sword r_addend; /* adjustment value */ 487 } Elf32_Rela; 488 489 /* r_info utility macros */ 490 #define ELF32_R_SYM(info) ((info) >> 8) 491 #define ELF32_R_TYPE(info) ((info) & 0xff) 492 #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) 493 494 typedef struct { 495 Elf64_Addr r_offset; /* where to do it */ 496 Elf64_Xword r_info; /* index & type of relocation */ 497 } Elf64_Rel; 498 499 typedef struct { 500 Elf64_Addr r_offset; /* where to do it */ 501 Elf64_Xword r_info; /* index & type of relocation */ 502 Elf64_Sxword r_addend; /* adjustment value */ 503 } Elf64_Rela; 504 505 /* r_info utility macros */ 506 #define ELF64_R_SYM(info) ((info) >> 32) 507 #define ELF64_R_TYPE(info) ((info) & 0xffffffff) 508 #define ELF64_R_INFO(sym,type) (((sym) << 32) + (type)) 509 510 /* 511 * Dynamic Section structure array 512 */ 513 typedef struct { 514 Elf32_Word d_tag; /* entry tag value */ 515 union { 516 Elf32_Addr d_ptr; 517 Elf32_Word d_val; 518 } d_un; 519 } Elf32_Dyn; 520 521 typedef struct { 522 Elf64_Xword d_tag; /* entry tag value */ 523 union { 524 Elf64_Addr d_ptr; 525 Elf64_Xword d_val; 526 } d_un; 527 } Elf64_Dyn; 528 529 /* d_tag */ 530 #define DT_NULL 0 /* Marks end of dynamic array */ 531 #define DT_NEEDED 1 /* Name of needed library (DT_STRTAB offset) */ 532 #define DT_PLTRELSZ 2 /* Size, in bytes, of relocations in PLT */ 533 #define DT_PLTGOT 3 /* Address of PLT and/or GOT */ 534 #define DT_HASH 4 /* Address of symbol hash table */ 535 #define DT_STRTAB 5 /* Address of string table */ 536 #define DT_SYMTAB 6 /* Address of symbol table */ 537 #define DT_RELA 7 /* Address of Rela relocation table */ 538 #define DT_RELASZ 8 /* Size, in bytes, of DT_RELA table */ 539 #define DT_RELAENT 9 /* Size, in bytes, of one DT_RELA entry */ 540 #define DT_STRSZ 10 /* Size, in bytes, of DT_STRTAB table */ 541 #define DT_SYMENT 11 /* Size, in bytes, of one DT_SYMTAB entry */ 542 #define DT_INIT 12 /* Address of initialization function */ 543 #define DT_FINI 13 /* Address of termination function */ 544 #define DT_SONAME 14 /* Shared object name (DT_STRTAB offset) */ 545 #define DT_RPATH 15 /* Library search path (DT_STRTAB offset) */ 546 #define DT_SYMBOLIC 16 /* Start symbol search within local object */ 547 #define DT_REL 17 /* Address of Rel relocation table */ 548 #define DT_RELSZ 18 /* Size, in bytes, of DT_REL table */ 549 #define DT_RELENT 19 /* Size, in bytes, of one DT_REL entry */ 550 #define DT_PLTREL 20 /* Type of PLT relocation entries */ 551 #define DT_DEBUG 21 /* Used for debugging; unspecified */ 552 #define DT_TEXTREL 22 /* Relocations might modify non-writable seg */ 553 #define DT_JMPREL 23 /* Address of relocations associated with PLT */ 554 #define DT_BIND_NOW 24 /* Process all relocations at load-time */ 555 #define DT_INIT_ARRAY 25 /* Address of initialization function array */ 556 #define DT_FINI_ARRAY 26 /* Size, in bytes, of DT_INIT_ARRAY array */ 557 #define DT_INIT_ARRAYSZ 27 /* Address of termination function array */ 558 #define DT_FINI_ARRAYSZ 28 /* Size, in bytes, of DT_FINI_ARRAY array*/ 559 #define DT_NUM 29 560 561 #define DT_LOOS 0x60000000 /* Operating system specific range */ 562 #define DT_HIOS 0x6fffffff 563 #define DT_LOPROC 0x70000000 /* Processor-specific range */ 564 #define DT_HIPROC 0x7fffffff 565 566 /* 567 * Auxiliary Vectors 568 */ 569 typedef struct { 570 Elf32_Word a_type; /* 32-bit id */ 571 Elf32_Word a_v; /* 32-bit id */ 572 } Aux32Info; 573 574 typedef struct { 575 Elf64_Half a_type; /* 32-bit id */ 576 Elf64_Xword a_v; /* 64-bit id */ 577 } Aux64Info; 578 579 /* a_type */ 580 #define AT_NULL 0 /* Marks end of array */ 581 #define AT_IGNORE 1 /* No meaning, a_un is undefined */ 582 #define AT_EXECFD 2 /* Open file descriptor of object file */ 583 #define AT_PHDR 3 /* &phdr[0] */ 584 #define AT_PHENT 4 /* sizeof(phdr[0]) */ 585 #define AT_PHNUM 5 /* # phdr entries */ 586 #define AT_PAGESZ 6 /* PAGESIZE */ 587 #define AT_BASE 7 /* Interpreter base addr */ 588 #define AT_FLAGS 8 /* Processor flags */ 589 #define AT_ENTRY 9 /* Entry address of executable */ 590 #define AT_DCACHEBSIZE 10 /* Data cache block size */ 591 #define AT_ICACHEBSIZE 11 /* Instruction cache block size */ 592 #define AT_UCACHEBSIZE 12 /* Unified cache block size */ 593 594 /* Vendor specific */ 595 #define AT_MIPS_NOTELF 10 /* XXX a_val != 0 -> MIPS XCOFF executable */ 596 597 #define AT_EUID 2000 /* euid (solaris compatible numbers) */ 598 #define AT_RUID 2001 /* ruid (solaris compatible numbers) */ 599 #define AT_EGID 2002 /* egid (solaris compatible numbers) */ 600 #define AT_RGID 2003 /* rgid (solaris compatible numbers) */ 601 602 /* Solaris kernel specific */ 603 #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */ 604 #define AT_SUN_LDSHDR 2005 /* dynamic linker's section header */ 605 #define AT_SUN_LDNAME 2006 /* dynamic linker's name */ 606 #define AT_SUN_LPGSIZE 2007 /* large pagesize */ 607 608 /* Other information */ 609 #define AT_SUN_PLATFORM 2008 /* sysinfo(SI_PLATFORM) */ 610 #define AT_SUN_HWCAP 2009 /* process hardware capabilities */ 611 #define AT_SUN_IFLUSH 2010 /* do we need to flush the instruction cache? */ 612 #define AT_SUN_CPU 2011 /* cpu name */ 613 /* ibcs2 emulation band aid */ 614 #define AT_SUN_EMUL_ENTRY 2012 /* coff entry point */ 615 #define AT_SUN_EMUL_EXECFD 2013 /* coff file descriptor */ 616 /* Executable's fully resolved name */ 617 #define AT_SUN_EXECNAME 2014 618 619 /* 620 * Note Headers 621 */ 622 typedef struct { 623 Elf32_Word n_namesz; 624 Elf32_Word n_descsz; 625 Elf32_Word n_type; 626 } Elf32_Nhdr; 627 628 typedef struct { 629 Elf64_Half n_namesz; 630 Elf64_Half n_descsz; 631 Elf64_Half n_type; 632 } Elf64_Nhdr; 633 634 #define ELF_NOTE_TYPE_ABI_TAG 1 635 636 /* GNU-specific note name and description sizes */ 637 #define ELF_NOTE_ABI_NAMESZ 4 638 #define ELF_NOTE_ABI_DESCSZ 16 639 /* GNU-specific note name */ 640 #define ELF_NOTE_ABI_NAME "GNU\0" 641 642 /* GNU-specific OS/version value stuff */ 643 #define ELF_NOTE_ABI_OS_LINUX 0 644 #define ELF_NOTE_ABI_OS_HURD 1 645 #define ELF_NOTE_ABI_OS_SOLARIS 2 646 647 /* NetBSD-specific note type: Emulation name. desc is emul name string. */ 648 #define ELF_NOTE_TYPE_NETBSD_TAG 1 649 650 /* NetBSD-specific note name and description sizes */ 651 #define ELF_NOTE_NETBSD_NAMESZ 7 652 #define ELF_NOTE_NETBSD_DESCSZ 4 653 /* NetBSD-specific note name */ 654 #define ELF_NOTE_NETBSD_NAME "NetBSD\0\0" 655 656 /* 657 * NetBSD-specific core file information. 658 * 659 * NetBSD ELF core files use notes to provide information about 660 * the process's state. The note name is "NetBSD-CORE" for 661 * information that is global to the process, and "NetBSD-CORE@nn", 662 * where "nn" is the lwpid of the LWP that the information belongs 663 * to (such as register state). 664 * 665 * We use the following note identifiers: 666 * 667 * ELF_NOTE_NETBSD_CORE_PROCINFO 668 * Note is a "netbsd_elfcore_procinfo" structure. 669 * 670 * We also use ptrace(2) request numbers (the ones that exist in 671 * machine-dependent space) to identify register info notes. The 672 * info in such notes is in the same format that ptrace(2) would 673 * export that information. 674 * 675 * Please try to keep the members of this structure nicely aligned, 676 * and if you add elements, add them to the end and bump the version. 677 */ 678 679 #define ELF_NOTE_NETBSD_CORE_NAME "NetBSD-CORE" 680 681 #define ELF_NOTE_NETBSD_CORE_PROCINFO 1 682 683 #define NETBSD_ELFCORE_PROCINFO_VERSION 1 684 685 struct netbsd_elfcore_procinfo { 686 /* Version 1 fields start here. */ 687 uint32_t cpi_version; /* netbsd_elfcore_procinfo version */ 688 uint32_t cpi_cpisize; /* sizeof(netbsd_elfcore_procinfo) */ 689 uint32_t cpi_signo; /* killing signal */ 690 uint32_t cpi_sigcode; /* signal code */ 691 uint32_t cpi_sigpend[4]; /* pending signals */ 692 uint32_t cpi_sigmask[4]; /* blocked signals */ 693 uint32_t cpi_sigignore[4];/* blocked signals */ 694 uint32_t cpi_sigcatch[4];/* blocked signals */ 695 int32_t cpi_pid; /* process ID */ 696 int32_t cpi_ppid; /* parent process ID */ 697 int32_t cpi_pgrp; /* process group ID */ 698 int32_t cpi_sid; /* session ID */ 699 uint32_t cpi_ruid; /* real user ID */ 700 uint32_t cpi_euid; /* effective user ID */ 701 uint32_t cpi_svuid; /* saved user ID */ 702 uint32_t cpi_rgid; /* real group ID */ 703 uint32_t cpi_egid; /* effective group ID */ 704 uint32_t cpi_svgid; /* saved group ID */ 705 uint32_t cpi_nlwps; /* number of LWPs */ 706 int8_t cpi_name[32]; /* copy of p->p_comm */ 707 /* Add version 2 fields below here. */ 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 ELF64_NO_ADDR (~(Elf64_Addr)0) /* Indicates addr. not yet filled in */ 771 772 #if defined(ELFSIZE) && (ELFSIZE == 64) 773 #define ELF_NO_ADDR ELF64_NO_ADDR 774 #elif defined(ELFSIZE) && (ELFSIZE == 32) 775 #define ELF_NO_ADDR ELF32_NO_ADDR 776 #endif 777 778 #ifndef ELF32_EHDR_FLAGS_OK 779 #define ELF32_EHDR_FLAGS_OK(eh) 1 780 #endif 781 782 #ifndef ELF64_EHDR_FLAGS_OK 783 #define ELF64_EHDR_FLAGS_OK(eh) 1 784 #endif 785 786 #if defined(ELFSIZE) && (ELFSIZE == 64) 787 #define ELF_EHDR_FLAGS_OK(eh) ELF64_EHDR_FLAGS_OK(eh) 788 #else 789 #define ELF_EHDR_FLAGS_OK(eh) ELF32_EHDR_FLAGS_OK(eh) 790 #endif 791 792 #if defined(ELFSIZE) 793 struct elf_args { 794 Elf_Addr arg_entry; /* program entry point */ 795 Elf_Addr arg_interp; /* Interpreter load address */ 796 Elf_Addr arg_phaddr; /* program header address */ 797 Elf_Addr arg_phentsize; /* Size of program header */ 798 Elf_Addr arg_phnum; /* Number of program headers */ 799 }; 800 #endif 801 802 #ifndef _LKM 803 #include "opt_execfmt.h" 804 #endif 805 806 #ifdef EXEC_ELF32 807 int exec_elf32_makecmds __P((struct proc *, struct exec_package *)); 808 int elf32_copyargs __P((struct proc *, struct exec_package *, struct ps_strings *, 809 char **, void *)); 810 811 int coredump_elf32 __P((struct proc *, struct vnode *, struct ucred *)); 812 int coredump_writenote_elf32 __P((struct proc *, struct vnode *, 813 struct ucred *, off_t, Elf32_Nhdr *, const char *, void *)); 814 #endif 815 816 #ifdef EXEC_ELF64 817 int exec_elf64_makecmds __P((struct proc *, struct exec_package *)); 818 int elf64_read_from __P((struct proc *, struct vnode *, u_long, 819 caddr_t, int)); 820 int elf64_copyargs __P((struct proc *, struct exec_package *, struct ps_strings *, 821 char **, void *)); 822 823 int coredump_elf64 __P((struct proc *, struct vnode *, struct ucred *)); 824 int coredump_writenote_elf64 __P((struct proc *, struct vnode *, 825 struct ucred *, off_t, Elf64_Nhdr *, const char *, void *)); 826 #endif 827 828 /* common */ 829 int exec_elf_setup_stack __P((struct proc *, struct exec_package *)); 830 831 #endif /* _KERNEL */ 832 833 #endif /* !_SYS_EXEC_ELF_H_ */ 834