exec_elf.h revision 1.3
1 /* $NetBSD: exec_elf.h,v 1.3 2019/05/20 18:24:57 christos 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _SYS_EXEC_ELF_H_ 33 #define _SYS_EXEC_ELF_H_ 34 35 /* 36 * The current ELF ABI specification is available at: 37 * http://www.sco.com/developers/gabi/ 38 * 39 * Current header definitions are in: 40 * http://www.sco.com/developers/gabi/latest/ch4.eheader.html 41 */ 42 43 #if defined(_KERNEL) || defined(_STANDALONE) 44 #include <sys/types.h> 45 #else 46 #include <inttypes.h> 47 #include <stddef.h> 48 #endif /* _KERNEL || _STANDALONE */ 49 50 #if 0 51 #if HAVE_NBTOOL_CONFIG_H 52 #include <nbinclude/machine/elf_machdep.h> 53 #else 54 #include <machine/elf_machdep.h> 55 #endif 56 #endif 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 typedef int32_t Elf32_SOff; 64 #define ELF32_FSZ_OFF 4 65 typedef int32_t Elf32_Sword; 66 #define ELF32_FSZ_SWORD 4 67 typedef uint32_t Elf32_Word; 68 #define ELF32_FSZ_WORD 4 69 typedef uint16_t Elf32_Half; 70 #define ELF32_FSZ_HALF 2 71 typedef uint64_t Elf32_Lword; 72 #define ELF32_FSZ_LWORD 8 73 74 typedef uint64_t Elf64_Addr; 75 #define ELF64_FSZ_ADDR 8 76 typedef uint64_t Elf64_Off; 77 typedef int64_t Elf64_SOff; 78 #define ELF64_FSZ_OFF 8 79 80 typedef int32_t Elf64_Sword; 81 #define ELF64_FSZ_SWORD 4 82 typedef uint32_t Elf64_Word; 83 #define ELF64_FSZ_WORD 4 84 85 typedef int64_t Elf64_Sxword; 86 #define ELF64_FSZ_SXWORD 8 87 typedef uint64_t Elf64_Xword; 88 #define ELF64_FSZ_XWORD 8 89 typedef uint64_t Elf64_Lword; 90 #define ELF64_FSZ_LWORD 8 91 typedef uint16_t Elf64_Half; 92 #define ELF64_FSZ_HALF 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_Half e_type; /* file type */ 119 Elf64_Half e_machine; /* machine type */ 120 Elf64_Word 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_Word e_flags; /* Processor flags */ 125 Elf64_Half e_ehsize; /* sizeof ehdr */ 126 Elf64_Half e_phentsize; /* Program header entry size */ 127 Elf64_Half e_phnum; /* Number of program headers */ 128 Elf64_Half e_shentsize; /* Section header entry size */ 129 Elf64_Half e_shnum; /* Number of section headers */ 130 Elf64_Half 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 #define ELFOSABI_OPENVMS 13 /* OpenVMS */ 185 #define ELFOSABI_NSK 14 /* HP Non-Stop Kernel */ 186 #define ELFOSABI_AROS 15 /* Amiga Research OS */ 187 /* Unofficial OSABIs follow */ 188 #define ELFOSABI_ARM 97 /* ARM */ 189 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ 190 191 #define ELFOSABI_NONE ELFOSABI_SYSV 192 #define ELFOSABI_AIX ELFOSABI_MONTEREY 193 194 /* e_type */ 195 #define ET_NONE 0 /* No file type */ 196 #define ET_REL 1 /* Relocatable file */ 197 #define ET_EXEC 2 /* Executable file */ 198 #define ET_DYN 3 /* Shared object file */ 199 #define ET_CORE 4 /* Core file */ 200 #define ET_NUM 5 201 202 #define ET_LOOS 0xfe00 /* Operating system specific range */ 203 #define ET_HIOS 0xfeff 204 #define ET_LOPROC 0xff00 /* Processor-specific range */ 205 #define ET_HIPROC 0xffff 206 207 /* e_machine */ 208 #define EM_NONE 0 /* No machine */ 209 #define EM_M32 1 /* AT&T WE 32100 */ 210 #define EM_SPARC 2 /* SPARC */ 211 #define EM_386 3 /* Intel 80386 */ 212 #define EM_68K 4 /* Motorola 68000 */ 213 #define EM_88K 5 /* Motorola 88000 */ 214 #define EM_486 6 /* Intel 80486 [old] */ 215 #define EM_IAMCU 6 /* Intel MCU. */ 216 #define EM_860 7 /* Intel 80860 */ 217 #define EM_MIPS 8 /* MIPS I Architecture */ 218 #define EM_S370 9 /* Amdahl UTS on System/370 */ 219 #define EM_MIPS_RS3_LE 10 /* MIPS RS3000 Little-endian */ 220 /* 11-14 - Reserved */ 221 #define EM_RS6000 11 /* IBM RS/6000 XXX reserved */ 222 #define EM_PARISC 15 /* Hewlett-Packard PA-RISC */ 223 #define EM_NCUBE 16 /* NCube XXX reserved */ 224 #define EM_VPP500 17 /* Fujitsu VPP500 */ 225 #define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */ 226 #define EM_960 19 /* Intel 80960 */ 227 #define EM_PPC 20 /* PowerPC */ 228 #define EM_PPC64 21 /* 64-bit PowerPC */ 229 /* 22-35 - Reserved */ 230 #define EM_S390 22 /* System/390 XXX reserved */ 231 #define EM_V800 36 /* NEC V800 */ 232 #define EM_FR20 37 /* Fujitsu FR20 */ 233 #define EM_RH32 38 /* TRW RH-32 */ 234 #define EM_RCE 39 /* Motorola RCE */ 235 #define EM_ARM 40 /* Advanced RISC Machines ARM */ 236 #define EM_ALPHA 41 /* DIGITAL Alpha */ 237 #define EM_SH 42 /* Hitachi Super-H */ 238 #define EM_SPARCV9 43 /* SPARC Version 9 */ 239 #define EM_TRICORE 44 /* Siemens Tricore */ 240 #define EM_ARC 45 /* Argonaut RISC Core */ 241 #define EM_H8_300 46 /* Hitachi H8/300 */ 242 #define EM_H8_300H 47 /* Hitachi H8/300H */ 243 #define EM_H8S 48 /* Hitachi H8S */ 244 #define EM_H8_500 49 /* Hitachi H8/500 */ 245 #define EM_IA_64 50 /* Intel Merced Processor */ 246 #define EM_MIPS_X 51 /* Stanford MIPS-X */ 247 #define EM_COLDFIRE 52 /* Motorola Coldfire */ 248 #define EM_68HC12 53 /* Motorola MC68HC12 */ 249 #define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator */ 250 #define EM_PCP 55 /* Siemens PCP */ 251 #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */ 252 #define EM_NDR1 57 /* Denso NDR1 microprocessor */ 253 #define EM_STARCORE 58 /* Motorola Star*Core processor */ 254 #define EM_ME16 59 /* Toyota ME16 processor */ 255 #define EM_ST100 60 /* STMicroelectronics ST100 processor */ 256 #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded family processor */ 257 #define EM_X86_64 62 /* AMD x86-64 architecture */ 258 #define EM_PDSP 63 /* Sony DSP Processor */ 259 #define EM_PDP10 64 /* Digital Equipment Corp. PDP-10 */ 260 #define EM_PDP11 65 /* Digital Equipment Corp. PDP-11 */ 261 #define EM_FX66 66 /* Siemens FX66 microcontroller */ 262 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 bit microcontroller */ 263 #define EM_ST7 68 /* STMicroelectronics ST7 8-bit microcontroller */ 264 #define EM_68HC16 69 /* Motorola MC68HC16 Microcontroller */ 265 #define EM_68HC11 70 /* Motorola MC68HC11 Microcontroller */ 266 #define EM_68HC08 71 /* Motorola MC68HC08 Microcontroller */ 267 #define EM_68HC05 72 /* Motorola MC68HC05 Microcontroller */ 268 #define EM_SVX 73 /* Silicon Graphics SVx */ 269 #define EM_ST19 74 /* STMicroelectronics ST19 8-bit CPU */ 270 #define EM_VAX 75 /* Digital VAX */ 271 #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ 272 #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded CPU */ 273 #define EM_FIREPATH 78 /* Element 14 64-bit DSP processor */ 274 #define EM_ZSP 79 /* LSI Logic's 16-bit DSP processor */ 275 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ 276 #define EM_HUANY 81 /* Harvard's machine-independent format */ 277 #define EM_PRISM 82 /* SiTera Prism */ 278 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ 279 #define EM_FR30 84 /* Fujitsu FR30 */ 280 #define EM_D10V 85 /* Mitsubishi D10V */ 281 #define EM_D30V 86 /* Mitsubishi D30V */ 282 #define EM_V850 87 /* NEC v850 */ 283 #define EM_M32R 88 /* Mitsubishi M32R */ 284 #define EM_MN10300 89 /* Matsushita MN10300 */ 285 #define EM_MN10200 90 /* Matsushita MN10200 */ 286 #define EM_PJ 91 /* picoJava */ 287 #define EM_OR1K 92 /* OpenRISC 32-bit embedded processor */ 288 #define EM_OPENRISC EM_OR1K 289 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ 290 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ 291 #define EM_VIDEOCORE 95 /* Alphamosaic VideoCore processor */ 292 #define EM_TMM_GPP 96 /* Thompson Multimedia General Purpose Processor */ 293 #define EM_NS32K 97 /* National Semiconductor 32000 series */ 294 #define EM_TPC 98 /* Tenor Network TPC processor */ 295 #define EM_SNP1K 99 /* Trebia SNP 1000 processor */ 296 #define EM_ST200 100 /* STMicroelectronics ST200 microcontroller */ 297 #define EM_IP2K 101 /* Ubicom IP2xxx microcontroller family */ 298 #define EM_MAX 102 /* MAX processor */ 299 #define EM_CR 103 /* National Semiconductor CompactRISC micorprocessor */ 300 #define EM_F2MC16 104 /* Fujitsu F2MC16 */ 301 #define EM_MSP430 105 /* Texas Instruments MSP430 */ 302 #define EM_BLACKFIN 106 /* Analog Devices Blackfin DSP */ 303 #define EM_SE_C33 107 /* Seiko Epson S1C33 family */ 304 #define EM_SEP 108 /* Sharp embedded microprocessor */ 305 #define EM_ARCA 109 /* Arca RISC microprocessor */ 306 #define EM_UNICORE 110 /* UNICORE from PKU-Unity Ltd. and MPRC Peking University */ 307 #define EM_ALTERA_NIOS2 113 /* Altera Nios II soft-core processor */ 308 #define EM_AARCH64 183 /* AArch64 64-bit ARM microprocessor */ 309 #define EM_AVR32 185 /* Atmel Corporation 32-bit microprocessor family*/ 310 #define EM_TILE64 187 /* Tilera TILE64 multicore architecture family */ 311 #define EM_TILEPRO 188 /* Tilera TILEPro multicore architecture family */ 312 #define EM_MICROBLAZE 189 /* Xilinx MicroBlaze 32-bit RISC soft processor core */ 313 #define EM_TILEGX 192 /* Tilera TILE-GX multicore architecture family */ 314 #define EM_Z80 220 /* Zilog Z80 */ 315 #define EM_RISCV 243 /* RISC-V */ 316 317 /* Unofficial machine types follow */ 318 #define EM_ALPHA_EXP 36902 /* used by NetBSD/alpha; obsolete */ 319 #define EM_NUM 36903 320 321 /* 322 * Program Header 323 */ 324 typedef struct { 325 Elf32_Word p_type; /* entry type */ 326 Elf32_Off p_offset; /* offset */ 327 Elf32_Addr p_vaddr; /* virtual address */ 328 Elf32_Addr p_paddr; /* physical address */ 329 Elf32_Word p_filesz; /* file size */ 330 Elf32_Word p_memsz; /* memory size */ 331 Elf32_Word p_flags; /* flags */ 332 Elf32_Word p_align; /* memory & file alignment */ 333 } Elf32_Phdr; 334 335 typedef struct { 336 Elf64_Word p_type; /* entry type */ 337 Elf64_Word p_flags; /* flags */ 338 Elf64_Off p_offset; /* offset */ 339 Elf64_Addr p_vaddr; /* virtual address */ 340 Elf64_Addr p_paddr; /* physical address */ 341 Elf64_Xword p_filesz; /* file size */ 342 Elf64_Xword p_memsz; /* memory size */ 343 Elf64_Xword p_align; /* memory & file alignment */ 344 } Elf64_Phdr; 345 346 /* p_type */ 347 #define PT_NULL 0 /* Program header table entry unused */ 348 #define PT_LOAD 1 /* Loadable program segment */ 349 #define PT_DYNAMIC 2 /* Dynamic linking information */ 350 #define PT_INTERP 3 /* Program interpreter */ 351 #define PT_NOTE 4 /* Auxiliary information */ 352 #define PT_SHLIB 5 /* Reserved, unspecified semantics */ 353 #define PT_PHDR 6 /* Entry for header table itself */ 354 #define PT_TLS 7 /* TLS initialisation image */ 355 #define PT_NUM 8 356 357 #define PT_LOOS 0x60000000 /* OS-specific range */ 358 359 /* GNU-specific */ 360 #define PT_GNU_EH_FRAME 0x6474e550 /* EH frame segment */ 361 #define PT_GNU_STACK 0x6474e551 /* Indicate executable stack */ 362 #define PT_GNU_RELRO 0x6474e552 /* Make read-only after relocation */ 363 364 #define PT_HIOS 0x6fffffff 365 #define PT_LOPROC 0x70000000 /* Processor-specific range */ 366 #define PT_HIPROC 0x7fffffff 367 368 #define PT_MIPS_REGINFO 0x70000000 369 #define PT_MIPS_ABIFLAGS 0x70000003 370 371 /* p_flags */ 372 #define PF_R 0x4 /* Segment is readable */ 373 #define PF_W 0x2 /* Segment is writable */ 374 #define PF_X 0x1 /* Segment is executable */ 375 376 #define PF_MASKOS 0x0ff00000 /* Operating system specific values */ 377 #define PF_MASKPROC 0xf0000000 /* Processor-specific values */ 378 379 /* Extended program header index. */ 380 #define PN_XNUM 0xffff 381 382 /* 383 * Section Headers 384 */ 385 typedef struct { 386 Elf32_Word sh_name; /* section name (.shstrtab index) */ 387 Elf32_Word sh_type; /* section type */ 388 Elf32_Word sh_flags; /* section flags */ 389 Elf32_Addr sh_addr; /* virtual address */ 390 Elf32_Off sh_offset; /* file offset */ 391 Elf32_Word sh_size; /* section size */ 392 Elf32_Word sh_link; /* link to another */ 393 Elf32_Word sh_info; /* misc info */ 394 Elf32_Word sh_addralign; /* memory alignment */ 395 Elf32_Word sh_entsize; /* table entry size */ 396 } Elf32_Shdr; 397 398 typedef struct { 399 Elf64_Word sh_name; /* section name (.shstrtab index) */ 400 Elf64_Word sh_type; /* section type */ 401 Elf64_Xword sh_flags; /* section flags */ 402 Elf64_Addr sh_addr; /* virtual address */ 403 Elf64_Off sh_offset; /* file offset */ 404 Elf64_Xword sh_size; /* section size */ 405 Elf64_Word sh_link; /* link to another */ 406 Elf64_Word sh_info; /* misc info */ 407 Elf64_Xword sh_addralign; /* memory alignment */ 408 Elf64_Xword sh_entsize; /* table entry size */ 409 } Elf64_Shdr; 410 411 /* sh_type */ 412 #define SHT_NULL 0 /* Section header table entry unused */ 413 #define SHT_PROGBITS 1 /* Program information */ 414 #define SHT_SYMTAB 2 /* Symbol table */ 415 #define SHT_STRTAB 3 /* String table */ 416 #define SHT_RELA 4 /* Relocation information w/ addend */ 417 #define SHT_HASH 5 /* Symbol hash table */ 418 #define SHT_DYNAMIC 6 /* Dynamic linking information */ 419 #define SHT_NOTE 7 /* Auxiliary information */ 420 #define SHT_NOBITS 8 /* No space allocated in file image */ 421 #define SHT_REL 9 /* Relocation information w/o addend */ 422 #define SHT_SHLIB 10 /* Reserved, unspecified semantics */ 423 #define SHT_DYNSYM 11 /* Symbol table for dynamic linker */ 424 #define SHT_INIT_ARRAY 14 /* Initialization function pointers */ 425 #define SHT_FINI_ARRAY 15 /* Termination function pointers */ 426 #define SHT_PREINIT_ARRAY 16 /* Pre-initialization function ptrs */ 427 #define SHT_GROUP 17 /* Section group */ 428 #define SHT_SYMTAB_SHNDX 18 /* Section indexes (see SHN_XINDEX) */ 429 #define SHT_NUM 19 430 431 #define SHT_LOOS 0x60000000 /* Operating system specific range */ 432 #define SHT_GNU_INCREMENTAL_INPUTS 0x6fff4700 /* GNU incremental build data */ 433 #define SHT_LOSUNW 0x6ffffff4 434 #define SHT_SUNW_dof 0x6ffffff4 435 #define SHT_GNU_ATTRIBUTES 0x6ffffff5 /* GNU object attributes */ 436 #define SHT_SUNW_cap 0x6ffffff5 437 #define SHT_SUNW_SIGNATURE 0x6ffffff6 438 #define SHT_GNU_HASH 0x6ffffff6 /* GNU style symbol hash table */ 439 #define SHT_GNU_LIBLIST 0x6ffffff7 /* GNU list of prelink dependencies */ 440 #define SHT_SUNW_move 0x6ffffffa 441 #define SHT_SUNW_COMDAT 0x6ffffffb 442 #define SHT_SUNW_syminfo 0x6ffffffc 443 #define SHT_SUNW_verdef 0x6ffffffd /* Versions defined by file */ 444 #define SHT_GNU_verdef SHT_SUNW_verdef 445 #define SHT_SUNW_verneed 0x6ffffffe /* Versions needed by file */ 446 #define SHT_GNU_verneed SHT_SUNW_verneed 447 #define SHT_SUNW_versym 0x6fffffff /* Symbol versions */ 448 #define SHT_GNU_versym SHT_SUNW_versym 449 #define SHT_HISUNW 0x6fffffff 450 #define SHT_HIOS 0x6fffffff 451 #define SHT_LOPROC 0x70000000 /* Processor-specific range */ 452 #define SHT_AMD64_UNWIND 0x70000001 /* unwind information */ 453 #define SHT_ARM_EXIDX 0x70000001 /* exception index table */ 454 #define SHT_ARM_PREEMPTMAP 0x70000002 /* BPABI DLL dynamic linking 455 * pre-emption map */ 456 #define SHT_ARM_ATTRIBUTES 0x70000003 /* Object file compatibility 457 * attributes */ 458 #define SHT_ARM_DEBUGOVERLAY 0x70000004 /* See DBGOVL for details */ 459 #define SHT_ARM_OVERLAYSECTION 0x70000005 460 #define SHT_MIPS_REGINFO 0x70000006 461 #define SHT_MIPS_OPTIONS 0x7000000d 462 #define SHT_MIPS_DWARF 0x7000001e /* MIPS gcc uses MIPS_DWARF */ 463 #define SHT_HIPROC 0x7fffffff 464 #define SHT_LOUSER 0x80000000 /* Application-specific range */ 465 #define SHT_HIUSER 0xffffffff 466 467 /* sh_flags */ 468 #define SHF_WRITE 0x00000001 /* Contains writable data */ 469 #define SHF_ALLOC 0x00000002 /* Occupies memory */ 470 #define SHF_EXECINSTR 0x00000004 /* Contains executable insns */ 471 #define SHF_MERGE 0x00000010 /* Might be merged */ 472 #define SHF_STRINGS 0x00000020 /* Contains nul terminated strings */ 473 #define SHF_INFO_LINK 0x00000040 /* "sh_info" contains SHT index */ 474 #define SHF_LINK_ORDER 0x00000080 /* Preserve order after combining */ 475 #define SHF_OS_NONCONFORMING 0x00000100 /* OS specific handling required */ 476 #define SHF_GROUP 0x00000200 /* Is member of a group */ 477 #define SHF_TLS 0x00000400 /* Holds thread-local data */ 478 #define SHF_MASKOS 0x0ff00000 /* Operating system specific values */ 479 #define SHF_MASKPROC 0xf0000000 /* Processor-specific values */ 480 #define SHF_ORDERED 0x40000000 /* Ordering requirement (Solaris) */ 481 #define SHF_EXCLUDE 0x80000000 /* Excluded unless unles ref/alloc 482 (Solaris).*/ 483 /* 484 * Symbol Table 485 */ 486 typedef struct { 487 Elf32_Word st_name; /* Symbol name (.strtab index) */ 488 Elf32_Word st_value; /* value of symbol */ 489 Elf32_Word st_size; /* size of symbol */ 490 Elf_Byte st_info; /* type / binding attrs */ 491 Elf_Byte st_other; /* unused */ 492 Elf32_Half st_shndx; /* section index of symbol */ 493 } Elf32_Sym; 494 495 typedef struct { 496 Elf64_Word st_name; /* Symbol name (.strtab index) */ 497 Elf_Byte st_info; /* type / binding attrs */ 498 Elf_Byte st_other; /* unused */ 499 Elf64_Half st_shndx; /* section index of symbol */ 500 Elf64_Addr st_value; /* value of symbol */ 501 Elf64_Xword st_size; /* size of symbol */ 502 } Elf64_Sym; 503 504 /* Symbol Table index of the undefined symbol */ 505 #define ELF_SYM_UNDEFINED 0 506 507 #define STN_UNDEF 0 /* undefined index */ 508 509 /* st_info: Symbol Bindings */ 510 #define STB_LOCAL 0 /* local symbol */ 511 #define STB_GLOBAL 1 /* global symbol */ 512 #define STB_WEAK 2 /* weakly defined global symbol */ 513 #define STB_NUM 3 514 515 #define STB_LOOS 10 /* Operating system specific range */ 516 #define STB_HIOS 12 517 #define STB_LOPROC 13 /* Processor-specific range */ 518 #define STB_HIPROC 15 519 520 /* st_info: Symbol Types */ 521 #define STT_NOTYPE 0 /* Type not specified */ 522 #define STT_OBJECT 1 /* Associated with a data object */ 523 #define STT_FUNC 2 /* Associated with a function */ 524 #define STT_SECTION 3 /* Associated with a section */ 525 #define STT_FILE 4 /* Associated with a file name */ 526 #define STT_COMMON 5 /* Uninitialised common block */ 527 #define STT_TLS 6 /* Thread local data object */ 528 #define STT_NUM 7 529 530 #define STT_LOOS 10 /* Operating system specific range */ 531 #define STT_GNU_IFUNC 10 /* GNU extension: indirect function */ 532 #define STT_HIOS 12 533 #define STT_LOPROC 13 /* Processor-specific range */ 534 #define STT_HIPROC 15 535 536 /* st_other: Visibility Types */ 537 #define STV_DEFAULT 0 /* use binding type */ 538 #define STV_INTERNAL 1 /* not referenced from outside */ 539 #define STV_HIDDEN 2 /* not visible, may be used via ptr */ 540 #define STV_PROTECTED 3 /* visible, not preemptible */ 541 #define STV_EXPORTED 4 542 #define STV_SINGLETON 5 543 #define STV_ELIMINATE 6 544 545 /* st_info/st_other utility macros */ 546 #define ELF_ST_BIND(info) ((uint32_t)(info) >> 4) 547 #define ELF_ST_TYPE(info) ((uint32_t)(info) & 0xf) 548 #define ELF_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | \ 549 ((type) & 0xf))) 550 #define ELF_ST_VISIBILITY(other) ((uint32_t)(other) & 3) 551 552 /* 553 * Special section indexes 554 */ 555 #define SHN_UNDEF 0 /* Undefined section */ 556 557 #define SHN_LORESERVE 0xff00 /* Reserved range */ 558 #define SHN_ABS 0xfff1 /* Absolute symbols */ 559 #define SHN_COMMON 0xfff2 /* Common symbols */ 560 #define SHN_XINDEX 0xffff /* Escape -- index stored elsewhere */ 561 #define SHN_HIRESERVE 0xffff 562 563 #define SHN_LOPROC 0xff00 /* Processor-specific range */ 564 #define SHN_HIPROC 0xff1f 565 #define SHN_LOOS 0xff20 /* Operating system specific range */ 566 #define SHN_HIOS 0xff3f 567 568 #define SHN_MIPS_ACOMMON 0xff00 569 #define SHN_MIPS_TEXT 0xff01 570 #define SHN_MIPS_DATA 0xff02 571 #define SHN_MIPS_SCOMMON 0xff03 572 573 /* 574 * Relocation Entries 575 */ 576 typedef struct { 577 Elf32_Word r_offset; /* where to do it */ 578 Elf32_Word r_info; /* index & type of relocation */ 579 } Elf32_Rel; 580 581 typedef struct { 582 Elf32_Word r_offset; /* where to do it */ 583 Elf32_Word r_info; /* index & type of relocation */ 584 Elf32_Sword r_addend; /* adjustment value */ 585 } Elf32_Rela; 586 587 /* r_info utility macros */ 588 #define ELF32_R_SYM(info) ((info) >> 8) 589 #define ELF32_R_TYPE(info) ((info) & 0xff) 590 #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) 591 592 typedef struct { 593 Elf64_Addr r_offset; /* where to do it */ 594 Elf64_Xword r_info; /* index & type of relocation */ 595 } Elf64_Rel; 596 597 typedef struct { 598 Elf64_Addr r_offset; /* where to do it */ 599 Elf64_Xword r_info; /* index & type of relocation */ 600 Elf64_Sxword r_addend; /* adjustment value */ 601 } Elf64_Rela; 602 603 /* r_info utility macros */ 604 #define ELF64_R_SYM(info) ((info) >> 32) 605 #define ELF64_R_TYPE(info) ((info) & 0xffffffff) 606 #define ELF64_R_INFO(sym,type) (((sym) << 32) + (type)) 607 608 /* 609 * Move entries 610 */ 611 typedef struct { 612 Elf32_Lword m_value; /* symbol value */ 613 Elf32_Word m_info; /* size + index */ 614 Elf32_Word m_poffset; /* symbol offset */ 615 Elf32_Half m_repeat; /* repeat count */ 616 Elf32_Half m_stride; /* stride info */ 617 } Elf32_Move; 618 619 #define ELF32_M_SYM(info) ((info) >> 8) 620 #define ELF32_M_SIZE(info) ((info) & 0xff) 621 #define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size)) 622 623 typedef struct { 624 Elf64_Lword m_value; /* symbol value */ 625 Elf64_Xword m_info; /* size + index */ 626 Elf64_Xword m_poffset; /* symbol offset */ 627 Elf64_Word m_repeat; /* repeat count */ 628 Elf64_Word m_stride; /* stride info */ 629 } Elf64_Move; 630 631 #define ELF64_M_SYM(info) ((info) >> 8) 632 #define ELF64_M_SIZE(info) ((info) & 0xff) 633 #define ELF64_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size)) 634 635 /* 636 * Hardware/software capabilities entry 637 */ 638 typedef struct { 639 Elf32_Word c_tag; /* entry tag value */ 640 union { 641 Elf32_Addr c_ptr; 642 Elf32_Word c_val; 643 } c_un; 644 } Elf32_Cap; 645 646 typedef struct { 647 Elf64_Xword c_tag; /* entry tag value */ 648 union { 649 Elf64_Addr c_ptr; 650 Elf64_Xword c_val; 651 } c_un; 652 } Elf64_Cap; 653 654 /* 655 * Dynamic Section structure array 656 */ 657 typedef struct { 658 Elf32_Word d_tag; /* entry tag value */ 659 union { 660 Elf32_Addr d_ptr; 661 Elf32_Word d_val; 662 } d_un; 663 } Elf32_Dyn; 664 665 typedef struct { 666 Elf64_Xword d_tag; /* entry tag value */ 667 union { 668 Elf64_Addr d_ptr; 669 Elf64_Xword d_val; 670 } d_un; 671 } Elf64_Dyn; 672 673 /* d_tag */ 674 #define DT_NULL 0 /* Marks end of dynamic array */ 675 #define DT_NEEDED 1 /* Name of needed library (DT_STRTAB offset) */ 676 #define DT_PLTRELSZ 2 /* Size, in bytes, of relocations in PLT */ 677 #define DT_PLTGOT 3 /* Address of PLT and/or GOT */ 678 #define DT_HASH 4 /* Address of symbol hash table */ 679 #define DT_STRTAB 5 /* Address of string table */ 680 #define DT_SYMTAB 6 /* Address of symbol table */ 681 #define DT_RELA 7 /* Address of Rela relocation table */ 682 #define DT_RELASZ 8 /* Size, in bytes, of DT_RELA table */ 683 #define DT_RELAENT 9 /* Size, in bytes, of one DT_RELA entry */ 684 #define DT_STRSZ 10 /* Size, in bytes, of DT_STRTAB table */ 685 #define DT_SYMENT 11 /* Size, in bytes, of one DT_SYMTAB entry */ 686 #define DT_INIT 12 /* Address of initialization function */ 687 #define DT_FINI 13 /* Address of termination function */ 688 #define DT_SONAME 14 /* Shared object name (DT_STRTAB offset) */ 689 #define DT_RPATH 15 /* Library search path (DT_STRTAB offset) */ 690 #define DT_SYMBOLIC 16 /* Start symbol search within local object */ 691 #define DT_REL 17 /* Address of Rel relocation table */ 692 #define DT_RELSZ 18 /* Size, in bytes, of DT_REL table */ 693 #define DT_RELENT 19 /* Size, in bytes, of one DT_REL entry */ 694 #define DT_PLTREL 20 /* Type of PLT relocation entries */ 695 #define DT_DEBUG 21 /* Used for debugging; unspecified */ 696 #define DT_TEXTREL 22 /* Relocations might modify non-writable seg */ 697 #define DT_JMPREL 23 /* Address of relocations associated with PLT */ 698 #define DT_BIND_NOW 24 /* Process all relocations at load-time */ 699 #define DT_INIT_ARRAY 25 /* Address of initialization function array */ 700 #define DT_FINI_ARRAY 26 /* Size, in bytes, of DT_INIT_ARRAY array */ 701 #define DT_INIT_ARRAYSZ 27 /* Address of termination function array */ 702 #define DT_FINI_ARRAYSZ 28 /* Size, in bytes, of DT_FINI_ARRAY array*/ 703 #define DT_RUNPATH 29 /* overrides DT_RPATH */ 704 #define DT_FLAGS 30 /* Encodes ORIGIN, SYMBOLIC, TEXTREL, BIND_NOW, STATIC_TLS */ 705 #define DT_ENCODING 31 /* ??? */ 706 #define DT_PREINIT_ARRAY 32 /* Address of pre-init function array */ 707 #define DT_PREINIT_ARRAYSZ 33 /* Size, in bytes, of DT_PREINIT_ARRAY array */ 708 #define DT_NUM 34 709 710 #define DT_LOOS 0x60000000 /* Operating system specific range */ 711 #define DT_VERSYM 0x6ffffff0 /* Symbol versions */ 712 #define DT_FLAGS_1 0x6ffffffb /* ELF dynamic flags */ 713 #define DT_VERDEF 0x6ffffffc /* Versions defined by file */ 714 #define DT_VERDEFNUM 0x6ffffffd /* Number of versions defined by file */ 715 #define DT_VERNEED 0x6ffffffe /* Versions needed by file */ 716 #define DT_VERNEEDNUM 0x6fffffff /* Number of versions needed by file */ 717 #define DT_HIOS 0x6fffffff 718 #define DT_LOPROC 0x70000000 /* Processor-specific range */ 719 #define DT_HIPROC 0x7fffffff 720 721 /* Flag values for DT_FLAGS */ 722 #define DF_ORIGIN 0x00000001 /* uses $ORIGIN */ 723 #define DF_SYMBOLIC 0x00000002 /* */ 724 #define DF_TEXTREL 0x00000004 /* */ 725 #define DF_BIND_NOW 0x00000008 /* */ 726 #define DF_STATIC_TLS 0x00000010 /* */ 727 728 /* Flag values for DT_FLAGS_1 */ 729 #define DF_1_NOW 0x00000001 /* Same as DF_BIND_NOW */ 730 #define DF_1_GLOBAL 0x00000002 /* Unused */ 731 #define DF_1_GROUP 0x00000004 /* Is member of group */ 732 #define DF_1_NODELETE 0x00000008 /* Cannot be deleted from process */ 733 #define DF_1_LOADFLTR 0x00000010 /* Immediate loading of filters */ 734 #define DF_1_INITFIRST 0x00000020 /* init/fini takes priority */ 735 #define DF_1_NOOPEN 0x00000040 /* Do not allow loading on dlopen() */ 736 #define DF_1_ORIGIN 0x00000080 /* Require $ORIGIN processing */ 737 #define DF_1_DIRECT 0x00000100 /* Enable direct bindings */ 738 #define DF_1_INTERPOSE 0x00000400 /* Is an interposer */ 739 #define DF_1_NODEFLIB 0x00000800 /* Ignore default library search path */ 740 #define DF_1_NODUMP 0x00001000 /* Cannot be dumped with dldump(3C) */ 741 #define DF_1_CONFALT 0x00002000 /* Configuration alternative */ 742 #define DF_1_ENDFILTEE 0x00004000 /* Filtee ends filter's search */ 743 #define DF_1_DISPRELDNE 0x00008000 /* Did displacement relocation */ 744 #define DF_1_DISPRELPND 0x00010000 /* Pending displacement relocation */ 745 #define DF_1_NODIRECT 0x00020000 /* Has non-direct bindings */ 746 #define DF_1_IGNMULDEF 0x00040000 /* Used internally */ 747 #define DF_1_NOKSYMS 0x00080000 /* Used internally */ 748 #define DF_1_NOHDR 0x00100000 /* Used internally */ 749 #define DF_1_EDITED 0x00200000 /* Has been modified since build */ 750 #define DF_1_NORELOC 0x00400000 /* Used internally */ 751 #define DF_1_SYMINTPOSE 0x00800000 /* Has individual symbol interposers */ 752 #define DF_1_GLOBAUDIT 0x01000000 /* Require global auditing */ 753 #define DF_1_SINGLETON 0x02000000 /* Has singleton symbols */ 754 #define DF_1_STUB 0x04000000 /* Stub */ 755 #define DF_1_PIE 0x08000000 /* Position Independent Executable */ 756 757 /* 758 * Auxiliary Vectors 759 */ 760 typedef struct { 761 Elf32_Word a_type; /* 32-bit id */ 762 Elf32_Word a_v; /* 32-bit id */ 763 } Aux32Info; 764 765 typedef struct { 766 Elf64_Word a_type; /* 32-bit id */ 767 Elf64_Xword a_v; /* 64-bit id */ 768 } Aux64Info; 769 770 /* a_type */ 771 #define AT_NULL 0 /* Marks end of array */ 772 #define AT_IGNORE 1 /* No meaning, a_un is undefined */ 773 #define AT_EXECFD 2 /* Open file descriptor of object file */ 774 #define AT_PHDR 3 /* &phdr[0] */ 775 #define AT_PHENT 4 /* sizeof(phdr[0]) */ 776 #define AT_PHNUM 5 /* # phdr entries */ 777 #define AT_PAGESZ 6 /* PAGESIZE */ 778 #define AT_BASE 7 /* Interpreter base addr */ 779 #define AT_FLAGS 8 /* Processor flags */ 780 #define AT_ENTRY 9 /* Entry address of executable */ 781 #define AT_DCACHEBSIZE 10 /* Data cache block size */ 782 #define AT_ICACHEBSIZE 11 /* Instruction cache block size */ 783 #define AT_UCACHEBSIZE 12 /* Unified cache block size */ 784 #define AT_STACKBASE 13 /* Base address of the main thread */ 785 786 /* Vendor specific */ 787 #define AT_MIPS_NOTELF 10 /* XXX a_val != 0 -> MIPS XCOFF executable */ 788 789 #define AT_EUID 2000 /* euid (solaris compatible numbers) */ 790 #define AT_RUID 2001 /* ruid (solaris compatible numbers) */ 791 #define AT_EGID 2002 /* egid (solaris compatible numbers) */ 792 #define AT_RGID 2003 /* rgid (solaris compatible numbers) */ 793 794 /* Solaris kernel specific */ 795 #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */ 796 #define AT_SUN_LDSHDR 2005 /* dynamic linker's section header */ 797 #define AT_SUN_LDNAME 2006 /* dynamic linker's name */ 798 #define AT_SUN_LPGSIZE 2007 /* large pagesize */ 799 800 /* Other information */ 801 #define AT_SUN_PLATFORM 2008 /* sysinfo(SI_PLATFORM) */ 802 #define AT_SUN_HWCAP 2009 /* process hardware capabilities */ 803 #define AT_SUN_IFLUSH 2010 /* do we need to flush the instruction cache? */ 804 #define AT_SUN_CPU 2011 /* CPU name */ 805 /* ibcs2 emulation band aid */ 806 #define AT_SUN_EMUL_ENTRY 2012 /* coff entry point */ 807 #define AT_SUN_EMUL_EXECFD 2013 /* coff file descriptor */ 808 /* Executable's fully resolved name */ 809 #define AT_SUN_EXECNAME 2014 810 811 /* 812 * The header for GNU-style hash sections. 813 */ 814 typedef struct { 815 uint32_t gh_nbuckets; /* Number of hash buckets. */ 816 uint32_t gh_symndx; /* First visible symbol in .dynsym. */ 817 uint32_t gh_maskwords; /* #maskwords used in bloom filter. */ 818 uint32_t gh_shift2; /* Bloom filter shift count. */ 819 } Elf_GNU_Hash_Header; 820 821 /* 822 * Note Headers 823 */ 824 typedef struct { 825 Elf32_Word n_namesz; 826 Elf32_Word n_descsz; 827 Elf32_Word n_type; 828 } Elf32_Nhdr; 829 830 typedef struct { 831 Elf64_Word n_namesz; 832 Elf64_Word n_descsz; 833 Elf64_Word n_type; 834 } Elf64_Nhdr; 835 836 #define ELF_NOTE_GNU_NAMESZ 4 837 #define ELF_NOTE_GNU_NAME "GNU\0" 838 839 /* 840 * GNU-specific note type: ABI tag 841 * name: GNU\0 842 * namesz: 4 843 * desc: 844 * word[0]: OS tag 845 * word[1]: major version 846 * word[2]: minor version 847 * word[3]: teeny version 848 * descsz: 16 849 */ 850 /* GNU-specific note name and description sizes */ 851 #define ELF_NOTE_TYPE_ABI_TAG 1 852 #define ELF_NOTE_ABI_NAME ELF_NOTE_GNU_NAME 853 #define ELF_NOTE_ABI_NAMESZ ELF_NOTE_GNU_NAMESZ 854 #define ELF_NOTE_ABI_DESCSZ 16 855 /* GNU-specific OS/version value stuff */ 856 #define ELF_NOTE_ABI_OS_LINUX 0 857 #define ELF_NOTE_ABI_OS_HURD 1 858 #define ELF_NOTE_ABI_OS_SOLARIS 2 859 #define ELF_NOTE_ABI_OS_KFREEBSD 3 860 #define ELF_NOTE_ABI_OS_KNETBSD 4 861 862 /* Old gcc style, under the ABI tag */ 863 #define ELF_NOTE_OGCC_NAMESZ 8 864 #define ELF_NOTE_OGCC_NAME "01.01\0\0\0\0" 865 #define ELF_NOTE_OGCC_DESCSZ 0 866 867 /* 868 * GNU-specific note type: Hardware capabilities 869 * name: GNU\0 870 * namesz: 4 871 * desc: 872 * word[0]: Number of entries 873 * word[1]: Bitmask of enabled entries 874 * Followed by a byte id, and a NUL terminated string per entry 875 * descsz: variable 876 */ 877 #define ELF_NOTE_TYPE_GNU_HWCAP 2 878 879 /* 880 * GNU-specific note type: Build ID generated by ld 881 * name: GNU\0 882 * desc: 883 * word[0..4] SHA1 [default] 884 * or 885 * word[0..3] md5 or uuid 886 * descsz: 16 or 20 887 */ 888 #define ELF_NOTE_TYPE_GNU_BUILD_ID 3 889 890 /* SuSE-specific note type: ABI 891 * name: SuSE\0 892 * namesz: 5 893 * desc: 894 * half[0] = MMmm 895 * 896 * M = product major version 897 * m = product minor version 898 * descsz: 2 899 */ 900 #define ELF_NOTE_TYPE_SUSE_TAG 1 901 /* SuSE-specific note name and description sizes */ 902 #define ELF_NOTE_SUSE_NAMESZ 5 903 #define ELF_NOTE_SUSE_DESCSZ 2 904 /* SuSE-specific note name */ 905 #define ELF_NOTE_SUSE_NAME "SuSE\0" 906 907 /* SuSE-specific note type: version 908 * name: SuSE\0\0\0\0 909 * namesz: 8 910 * desc: 911 * word[0] = VVTTMMmm 912 * 913 * V = version of following data 914 * T = product type: [box, sles, nld, whatever] 915 * M = product major version 916 * m = product minor version 917 * descsz: 8 918 */ 919 #define ELF_NOTE_TYPE_SUSE_VERSION_TAG 0x45537553 /* SuSE in LE */ 920 /* SuSE-specific note name and description sizes */ 921 #define ELF_NOTE_SUSE_VERSION_NAMESZ 8 922 #define ELF_NOTE_SUSE_VERSION_DESCSZ 8 923 /* SuSE-specific note name */ 924 #define ELF_NOTE_SUSE_VERSION_NAME "SuSE\0\0\0\0" 925 926 /* Go-specific note type: buildid 927 * name: Go\0\0 928 * namesz: 4 929 * desc: 930 * words[10] 931 * descsz: 40 932 */ 933 #define ELF_NOTE_TYPE_GO_BUILDID_TAG 4 934 #define ELF_NOTE_GO_BUILDID_NAMESZ 4 935 #define ELF_NOTE_GO_BUILDID_DESCSZ 40 936 #define ELF_NOTE_GO_BUILDID_NAME "Go\0\0" 937 938 /* NetBSD-specific note type: NetBSD ABI version. 939 * name: NetBSD\0\0 940 * namesz: 8 941 * desc: 942 * word[0]: MMmmrrpp00 943 * 944 * M = major version 945 * m = minor version 946 * r = release ["",A-Z,Z[A-Z] but numeric] 947 * p = patchlevel 948 * descsz: 4 949 */ 950 #define ELF_NOTE_TYPE_NETBSD_TAG 1 951 /* NetBSD-specific note name and description sizes */ 952 #define ELF_NOTE_NETBSD_NAMESZ 7 953 #define ELF_NOTE_NETBSD_DESCSZ 4 954 /* NetBSD-specific note name */ 955 #define ELF_NOTE_NETBSD_NAME "NetBSD\0\0" 956 957 /* NetBSD-specific note type: Emulation (obsolete; last used early 2000) 958 * name: NetBSD\0\0 959 * namesz: 8 960 * desc: 961 * "netbsd\0" 962 * 963 * descsz: 8 964 */ 965 #define ELF_NOTE_TYPE_NETBSD_EMUL_TAG 2 966 #define ELF_NOTE_NETBSD_EMUL_NAMESZ 7 967 #define ELF_NOTE_NETBSD_EMUL_DESCSZ 7 968 /* NetBSD-specific note name */ 969 #define ELF_NOTE_NETBSD_EMUL_NAME "NetBSD\0\0" 970 971 /* 972 * NetBSD-specific note type: PaX. 973 * There should be 1 NOTE per executable. 974 * name: PaX\0 975 * namesz: 4 976 * desc: 977 * word[0]: capability bitmask 978 * descsz: 4 979 */ 980 #define ELF_NOTE_TYPE_PAX_TAG 3 981 #define ELF_NOTE_PAX_MPROTECT 0x01 /* Force enable Mprotect */ 982 #define ELF_NOTE_PAX_NOMPROTECT 0x02 /* Force disable Mprotect */ 983 #define ELF_NOTE_PAX_GUARD 0x04 /* Force enable Segvguard */ 984 #define ELF_NOTE_PAX_NOGUARD 0x08 /* Force disable Segvguard */ 985 #define ELF_NOTE_PAX_ASLR 0x10 /* Force enable ASLR */ 986 #define ELF_NOTE_PAX_NOASLR 0x20 /* Force disable ASLR */ 987 #define ELF_NOTE_PAX_NAMESZ 4 988 #define ELF_NOTE_PAX_NAME "PaX\0" 989 #define ELF_NOTE_PAX_DESCSZ 4 990 991 /* 992 * NetBSD-specific core file information. 993 * 994 * NetBSD ELF core files use notes to provide information about 995 * the process's state. The note name is "NetBSD-CORE" for 996 * information that is global to the process, and "NetBSD-CORE@nn", 997 * where "nn" is the lwpid of the LWP that the information belongs 998 * to (such as register state). 999 * 1000 * We use the following note identifiers: 1001 * 1002 * ELF_NOTE_NETBSD_CORE_PROCINFO 1003 * Note is a "netbsd_elfcore_procinfo" structure. 1004 * ELF_NOTE_NETBSD_CORE_AUXV 1005 * Note is an array of AuxInfo structures. 1006 * 1007 * We also use ptrace(2) request numbers (the ones that exist in 1008 * machine-dependent space) to identify register info notes. The 1009 * info in such notes is in the same format that ptrace(2) would 1010 * export that information. 1011 * 1012 * Please try to keep the members of this structure nicely aligned, 1013 * and if you add elements, add them to the end and bump the version. 1014 */ 1015 1016 #define ELF_NOTE_NETBSD_CORE_NAME "NetBSD-CORE" 1017 1018 #define ELF_NOTE_NETBSD_CORE_PROCINFO 1 1019 #define ELF_NOTE_NETBSD_CORE_AUXV 2 1020 1021 #define NETBSD_ELFCORE_PROCINFO_VERSION 1 1022 1023 struct netbsd_elfcore_procinfo { 1024 /* Version 1 fields start here. */ 1025 uint32_t cpi_version; /* our version */ 1026 uint32_t cpi_cpisize; /* sizeof(this struct) */ 1027 uint32_t cpi_signo; /* killing signal */ 1028 uint32_t cpi_sigcode; /* signal code */ 1029 uint32_t cpi_sigpend[4]; /* pending signals */ 1030 uint32_t cpi_sigmask[4]; /* blocked signals */ 1031 uint32_t cpi_sigignore[4]; /* ignored signals */ 1032 uint32_t cpi_sigcatch[4]; /* caught signals */ 1033 int32_t cpi_pid; /* process ID */ 1034 int32_t cpi_ppid; /* parent process ID */ 1035 int32_t cpi_pgrp; /* process group ID */ 1036 int32_t cpi_sid; /* session ID */ 1037 uint32_t cpi_ruid; /* real user ID */ 1038 uint32_t cpi_euid; /* effective user ID */ 1039 uint32_t cpi_svuid; /* saved user ID */ 1040 uint32_t cpi_rgid; /* real group ID */ 1041 uint32_t cpi_egid; /* effective group ID */ 1042 uint32_t cpi_svgid; /* saved group ID */ 1043 uint32_t cpi_nlwps; /* number of LWPs */ 1044 int8_t cpi_name[32]; /* copy of p->p_comm */ 1045 /* Add version 2 fields below here. */ 1046 int32_t cpi_siglwp; /* LWP target of killing signal */ 1047 }; 1048 1049 /* 1050 * NetBSD-specific note type: MACHINE_ARCH. 1051 * There should be 1 NOTE per executable. 1052 * name: NetBSD\0 1053 * namesz: 7 1054 * desc: string 1055 * descsz: variable 1056 */ 1057 #define ELF_NOTE_TYPE_MARCH_TAG 5 1058 /* NetBSD-specific note name and description sizes */ 1059 #define ELF_NOTE_MARCH_NAMESZ ELF_NOTE_NETBSD_NAMESZ 1060 /* NetBSD-specific note name */ 1061 #define ELF_NOTE_MARCH_NAME ELF_NOTE_NETBSD_NAME 1062 1063 /* 1064 * NetBSD-specific note type: MCMODEL 1065 * There should be 1 NOTE per executable. 1066 * name: NetBSD\0 1067 * namesz: 7 1068 * code model: string 1069 */ 1070 1071 #define ELF_NOTE_TYPE_MCMODEL_TAG 6 1072 /* NetBSD-specific note name and description sizes */ 1073 #define ELF_NOTE_MCMODEL_NAMESZ ELF_NOTE_NETBSD_NAMESZ 1074 /* NetBSD-specific note name */ 1075 #define ELF_NOTE_MCMODEL_NAME ELF_NOTE_NETBSD_NAME 1076 1077 1078 #if !defined(ELFSIZE) 1079 # if defined(_RUMPKERNEL) || !defined(_KERNEL) 1080 # define ELFSIZE ARCH_ELFSIZE 1081 # else 1082 # define ELFSIZE KERN_ELFSIZE 1083 # endif 1084 #endif 1085 1086 #if defined(ELFSIZE) 1087 #define CONCAT(x,y) __CONCAT(x,y) 1088 #define ELFNAME(x) CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x))) 1089 #define ELFNAME2(x,y) CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y)))) 1090 #define ELFNAMEEND(x) CONCAT(x,CONCAT(_elf,ELFSIZE)) 1091 #define ELFDEFNNAME(x) CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x))) 1092 #define ElfW(x) CONCAT(Elf,CONCAT(ELFSIZE,CONCAT(_,x))) 1093 #endif 1094 1095 #if defined(ELFSIZE) && (ELFSIZE == 32) 1096 #define Elf_Ehdr Elf32_Ehdr 1097 #define Elf_Phdr Elf32_Phdr 1098 #define Elf_Shdr Elf32_Shdr 1099 #define Elf_Sym Elf32_Sym 1100 #define Elf_Rel Elf32_Rel 1101 #define Elf_Rela Elf32_Rela 1102 #define Elf_Dyn Elf32_Dyn 1103 #define Elf_Word Elf32_Word 1104 #define Elf_Sword Elf32_Sword 1105 #define Elf_Half Elf32_Half 1106 #define Elf_Addr Elf32_Addr 1107 #define Elf_Off Elf32_Off 1108 #define Elf_SOff Elf32_SOff 1109 #define Elf_Nhdr Elf32_Nhdr 1110 #define Elf_Verdef Elf32_Verdef 1111 #define Elf_Verdaux Elf32_Verdaux 1112 #define Elf_Verneed Elf32_Verneed 1113 #define Elf_Vernaux Elf32_Vernaux 1114 #define Elf_Versym Elf32_Versym 1115 1116 #define ELF_R_SYM ELF32_R_SYM 1117 #define ELF_R_TYPE ELF32_R_TYPE 1118 #define ELFCLASS ELFCLASS32 1119 1120 #define AuxInfo Aux32Info 1121 #elif defined(ELFSIZE) && (ELFSIZE == 64) 1122 #define Elf_Ehdr Elf64_Ehdr 1123 #define Elf_Phdr Elf64_Phdr 1124 #define Elf_Shdr Elf64_Shdr 1125 #define Elf_Sym Elf64_Sym 1126 #define Elf_Rel Elf64_Rel 1127 #define Elf_Rela Elf64_Rela 1128 #define Elf_Dyn Elf64_Dyn 1129 #define Elf_Word Elf64_Word 1130 #define Elf_Sword Elf64_Sword 1131 #define Elf_Half Elf64_Half 1132 #define Elf_Addr Elf64_Addr 1133 #define Elf_Off Elf64_Off 1134 #define Elf_SOff Elf64_SOff 1135 #define Elf_Nhdr Elf64_Nhdr 1136 #define Elf_Verdef Elf64_Verdef 1137 #define Elf_Verdaux Elf64_Verdaux 1138 #define Elf_Verneed Elf64_Verneed 1139 #define Elf_Vernaux Elf64_Vernaux 1140 #define Elf_Versym Elf64_Versym 1141 1142 #define ELF_R_SYM ELF64_R_SYM 1143 #define ELF_R_TYPE ELF64_R_TYPE 1144 #define ELFCLASS ELFCLASS64 1145 1146 #define AuxInfo Aux64Info 1147 #endif 1148 1149 #ifndef Elf_Symindx 1150 #define Elf_Symindx uint32_t 1151 #endif 1152 1153 #define ELF32_ST_BIND(info) ELF_ST_BIND(info) 1154 #define ELF32_ST_TYPE(info) ELF_ST_TYPE(info) 1155 #define ELF32_ST_INFO(bind,type) ELF_ST_INFO(bind,type) 1156 #define ELF32_ST_VISIBILITY(other) ELF_ST_VISIBILITY(other) 1157 1158 #define ELF64_ST_BIND(info) ELF_ST_BIND(info) 1159 #define ELF64_ST_TYPE(info) ELF_ST_TYPE(info) 1160 #define ELF64_ST_INFO(bind,type) ELF_ST_INFO(bind,type) 1161 #define ELF64_ST_VISIBILITY(other) ELF_ST_VISIBILITY(other) 1162 1163 typedef struct { 1164 Elf32_Half si_boundto; /* direct bindings - symbol bound to */ 1165 Elf32_Half si_flags; /* per symbol flags */ 1166 } Elf32_Syminfo; 1167 1168 typedef struct { 1169 Elf64_Word si_boundto; /* direct bindings - symbol bound to */ 1170 Elf64_Word si_flags; /* per symbol flags */ 1171 } Elf64_Syminfo; 1172 1173 #define SYMINFO_FLG_DIRECT 0x0001 /* symbol ref has direct association 1174 to object containing definition */ 1175 #define SYMINFO_FLG_PASSTHRU 0x0002 /* ignored - see SYMINFO_FLG_FILTER */ 1176 #define SYMINFO_FLG_COPY 0x0004 /* symbol is a copy-reloc */ 1177 #define SYMINFO_FLG_LAZYLOAD 0x0008 /* object containing defn should be 1178 lazily-loaded */ 1179 #define SYMINFO_FLG_DIRECTBIND 0x0010 /* ref should be bound directly to 1180 object containing definition */ 1181 #define SYMINFO_FLG_NOEXTDIRECT 0x0020 /* don't let an external reference 1182 directly bind to this symbol */ 1183 #define SYMINFO_FLG_FILTER 0x0002 /* symbol ref is associated to a */ 1184 #define SYMINFO_FLG_AUXILIARY 0x0040 /* standard or auxiliary filter */ 1185 1186 #define SYMINFO_BT_SELF 0xffff /* symbol bound to self */ 1187 #define SYMINFO_BT_PARENT 0xfffe /* symbol bound to parent */ 1188 #define SYMINFO_BT_NONE 0xfffd /* no special symbol binding */ 1189 #define SYMINFO_BT_EXTERN 0xfffc /* symbol defined as external */ 1190 #define SYMINFO_BT_LOWRESERVE 0xff00 /* beginning of reserved entries */ 1191 1192 #define SYMINFO_NONE 0 /* Syminfo version */ 1193 #define SYMINFO_CURRENT 1 1194 #define SYMINFO_NUM 2 1195 1196 /* 1197 * These constants are used for Elf32_Verdef struct's version number. 1198 */ 1199 #define VER_DEF_NONE 0 1200 #define VER_DEF_CURRENT 1 1201 1202 /* 1203 * These constants are used for Elf32_Verdef struct's vd_ndx. 1204 */ 1205 #define VER_DEF_IDX(x) VER_NDX(x) 1206 1207 /* 1208 * These constants are used for Elf32_Verdef struct's vd_flags. 1209 */ 1210 #define VER_FLG_BASE 0x1 1211 #define VER_FLG_WEAK 0x2 1212 1213 /* 1214 * These are used in an Elf32_Versym field. 1215 */ 1216 #define VER_NDX_LOCAL 0 1217 #define VER_NDX_GLOBAL 1 1218 #define VER_NDX_GIVEN 2 1219 1220 /* 1221 * These constants are used for Elf32_Verneed struct's version number. 1222 */ 1223 #define VER_NEED_NONE 0 1224 #define VER_NEED_CURRENT 1 1225 1226 /* 1227 * These constants are used for Elf32_Vernaux struct's vna_other. 1228 */ 1229 #define VER_NEED_HIDDEN VER_NDX_HIDDEN 1230 #define VER_NEED_IDX(x) VER_NDX(x) 1231 1232 /* index */ 1233 #define VER_NDX_HIDDEN 0x8000 1234 #define VER_NDX(x) ((x) & ~VER_NDX_HIDDEN) 1235 1236 /* 1237 * GNU Extension hidding symbol 1238 */ 1239 #define VERSYM_HIDDEN 0x8000 1240 #define VERSYM_VERSION 0x7fff 1241 1242 #define ELF_VER_CHR '@' 1243 1244 /* 1245 * These are current size independent. 1246 */ 1247 1248 typedef struct { 1249 Elf32_Half vd_version; /* version number of structure */ 1250 Elf32_Half vd_flags; /* flags (VER_FLG_*) */ 1251 Elf32_Half vd_ndx; /* version index */ 1252 Elf32_Half vd_cnt; /* number of verdaux entries */ 1253 Elf32_Word vd_hash; /* hash of name */ 1254 Elf32_Word vd_aux; /* offset to verdaux entries */ 1255 Elf32_Word vd_next; /* offset to next verdef */ 1256 } Elf32_Verdef; 1257 typedef Elf32_Verdef Elf64_Verdef; 1258 1259 typedef struct { 1260 Elf32_Word vda_name; /* string table offset of name */ 1261 Elf32_Word vda_next; /* offset to verdaux */ 1262 } Elf32_Verdaux; 1263 typedef Elf32_Verdaux Elf64_Verdaux; 1264 1265 typedef struct { 1266 Elf32_Half vn_version; /* version number of structure */ 1267 Elf32_Half vn_cnt; /* number of vernaux entries */ 1268 Elf32_Word vn_file; /* string table offset of library name*/ 1269 Elf32_Word vn_aux; /* offset to vernaux entries */ 1270 Elf32_Word vn_next; /* offset to next verneed */ 1271 } Elf32_Verneed; 1272 typedef Elf32_Verneed Elf64_Verneed; 1273 1274 typedef struct { 1275 Elf32_Word vna_hash; /* Hash of dependency name */ 1276 Elf32_Half vna_flags; /* flags (VER_FLG_*) */ 1277 Elf32_Half vna_other; /* unused */ 1278 Elf32_Word vna_name; /* string table offset to version name*/ 1279 Elf32_Word vna_next; /* offset to next vernaux */ 1280 } Elf32_Vernaux; 1281 typedef Elf32_Vernaux Elf64_Vernaux; 1282 1283 typedef struct { 1284 Elf32_Half vs_vers; 1285 } Elf32_Versym; 1286 typedef Elf32_Versym Elf64_Versym; 1287 1288 #ifdef _KERNEL 1289 1290 /* 1291 * Arbitrary limits to avoid DoS for excessive memory allocation. 1292 */ 1293 #define ELF_MAXPHNUM 128 1294 #define ELF_MAXSHNUM 32768 1295 #define ELF_MAXNOTESIZE 1024 1296 1297 #define ELF_AUX_ENTRIES 15 /* Max size of aux array passed to loader */ 1298 #define ELF32_NO_ADDR (~(Elf32_Addr)0) /* Indicates addr. not yet filled in */ 1299 #define ELF32_LINK_ADDR ((Elf32_Addr)-2) /* advises to use link address */ 1300 #define ELF64_NO_ADDR (~(Elf64_Addr)0) /* Indicates addr. not yet filled in */ 1301 #define ELF64_LINK_ADDR ((Elf64_Addr)-2) /* advises to use link address */ 1302 1303 #if defined(ELFSIZE) && (ELFSIZE == 64) 1304 #define ELF_NO_ADDR ELF64_NO_ADDR 1305 #define ELF_LINK_ADDR ELF64_LINK_ADDR 1306 #elif defined(ELFSIZE) && (ELFSIZE == 32) 1307 #define ELF_NO_ADDR ELF32_NO_ADDR 1308 #define ELF_LINK_ADDR ELF32_LINK_ADDR 1309 #endif 1310 1311 #ifndef ELF32_EHDR_FLAGS_OK 1312 #define ELF32_EHDR_FLAGS_OK(eh) 1 1313 #endif 1314 1315 #ifndef ELF64_EHDR_FLAGS_OK 1316 #define ELF64_EHDR_FLAGS_OK(eh) 1 1317 #endif 1318 1319 #if defined(ELFSIZE) && (ELFSIZE == 64) 1320 #define ELF_EHDR_FLAGS_OK(eh) ELF64_EHDR_FLAGS_OK(eh) 1321 #else 1322 #define ELF_EHDR_FLAGS_OK(eh) ELF32_EHDR_FLAGS_OK(eh) 1323 #endif 1324 1325 #if defined(ELFSIZE) 1326 struct elf_args { 1327 Elf_Addr arg_entry; /* program entry point */ 1328 Elf_Addr arg_interp; /* Interpreter load address */ 1329 Elf_Addr arg_phaddr; /* program header address */ 1330 Elf_Addr arg_phentsize; /* Size of program header */ 1331 Elf_Addr arg_phnum; /* Number of program headers */ 1332 }; 1333 #endif 1334 1335 #ifdef _KERNEL_OPT 1336 #include "opt_execfmt.h" 1337 #endif 1338 1339 struct ps_strings; 1340 struct coredump_iostate; 1341 struct note_state; 1342 struct exec_package; 1343 1344 #ifdef EXEC_ELF32 1345 int exec_elf32_makecmds(struct lwp *, struct exec_package *); 1346 int elf32_copyargs(struct lwp *, struct exec_package *, 1347 struct ps_strings *, char **, void *); 1348 1349 int coredump_elf32(struct lwp *, struct coredump_iostate *); 1350 void coredump_savenote_elf32(struct note_state *, unsigned int, 1351 const char *, void *, size_t); 1352 1353 int elf32_check_header(Elf32_Ehdr *); 1354 #endif 1355 1356 #ifdef EXEC_ELF64 1357 int exec_elf64_makecmds(struct lwp *, struct exec_package *); 1358 int elf64_copyargs(struct lwp *, struct exec_package *, 1359 struct ps_strings *, char **, void *); 1360 1361 int coredump_elf64(struct lwp *, struct coredump_iostate *); 1362 void coredump_savenote_elf64(struct note_state *, unsigned int, 1363 const char *, void *, size_t); 1364 1365 int elf64_check_header(Elf64_Ehdr *); 1366 #endif 1367 1368 #endif /* _KERNEL */ 1369 1370 #endif /* !_SYS_EXEC_ELF_H_ */ 1371
Indexes created Wed Oct 01 19:09:53 GMT 2025