1 /* $NetBSD: exec_elf.h,v 1.132 2013/11/05 14:26:19 martin 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 #endif /* _KERNEL || _STANDALONE */ 48 49 #if HAVE_NBTOOL_CONFIG_H 50 #include <nbinclude/machine/elf_machdep.h> 51 #else 52 #include <machine/elf_machdep.h> 53 #endif 54 55 typedef uint8_t Elf_Byte; 56 57 typedef uint32_t Elf32_Addr; 58 #define ELF32_FSZ_ADDR 4 59 typedef uint32_t Elf32_Off; 60 typedef int32_t Elf32_SOff; 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 typedef uint64_t Elf32_Lword; 69 #define ELF32_FSZ_LWORD 8 70 71 typedef uint64_t Elf64_Addr; 72 #define ELF64_FSZ_ADDR 8 73 typedef uint64_t Elf64_Off; 74 typedef int64_t Elf64_SOff; 75 #define ELF64_FSZ_OFF 8 76 typedef int32_t Elf64_Shalf; 77 #define ELF64_FSZ_SHALF 4 78 79 typedef int32_t Elf64_Sword; 80 #define ELF64_FSZ_SWORD 4 81 typedef uint32_t Elf64_Word; 82 #define ELF64_FSZ_WORD 4 83 84 typedef int64_t Elf64_Sxword; 85 #define ELF64_FSZ_SXWORD 8 86 typedef uint64_t Elf64_Xword; 87 #define ELF64_FSZ_XWORD 8 88 typedef uint64_t Elf64_Lword; 89 #define ELF64_FSZ_LWORD 8 90 typedef uint16_t Elf64_Half; 91 #define ELF64_FSZ_HALF 2 92 93 /* 94 * ELF Header 95 */ 96 #define ELF_NIDENT 16 97 98 typedef struct { 99 unsigned char e_ident[ELF_NIDENT]; /* Id bytes */ 100 Elf32_Half e_type; /* file type */ 101 Elf32_Half e_machine; /* machine type */ 102 Elf32_Word e_version; /* version number */ 103 Elf32_Addr e_entry; /* entry point */ 104 Elf32_Off e_phoff; /* Program hdr offset */ 105 Elf32_Off e_shoff; /* Section hdr offset */ 106 Elf32_Word e_flags; /* Processor flags */ 107 Elf32_Half e_ehsize; /* sizeof ehdr */ 108 Elf32_Half e_phentsize; /* Program header entry size */ 109 Elf32_Half e_phnum; /* Number of program headers */ 110 Elf32_Half e_shentsize; /* Section header entry size */ 111 Elf32_Half e_shnum; /* Number of section headers */ 112 Elf32_Half e_shstrndx; /* String table index */ 113 } Elf32_Ehdr; 114 115 typedef struct { 116 unsigned char e_ident[ELF_NIDENT]; /* Id bytes */ 117 Elf64_Half e_type; /* file type */ 118 Elf64_Half e_machine; /* machine type */ 119 Elf64_Word e_version; /* version number */ 120 Elf64_Addr e_entry; /* entry point */ 121 Elf64_Off e_phoff; /* Program hdr offset */ 122 Elf64_Off e_shoff; /* Section hdr offset */ 123 Elf64_Word e_flags; /* Processor flags */ 124 Elf64_Half e_ehsize; /* sizeof ehdr */ 125 Elf64_Half e_phentsize; /* Program header entry size */ 126 Elf64_Half e_phnum; /* Number of program headers */ 127 Elf64_Half e_shentsize; /* Section header entry size */ 128 Elf64_Half e_shnum; /* Number of section headers */ 129 Elf64_Half e_shstrndx; /* String table index */ 130 } Elf64_Ehdr; 131 132 /* e_ident offsets */ 133 #define EI_MAG0 0 /* '\177' */ 134 #define EI_MAG1 1 /* 'E' */ 135 #define EI_MAG2 2 /* 'L' */ 136 #define EI_MAG3 3 /* 'F' */ 137 #define EI_CLASS 4 /* File class */ 138 #define EI_DATA 5 /* Data encoding */ 139 #define EI_VERSION 6 /* File version */ 140 #define EI_OSABI 7 /* Operating system/ABI identification */ 141 #define EI_ABIVERSION 8 /* ABI version */ 142 #define EI_PAD 9 /* Start of padding bytes up to EI_NIDENT*/ 143 #define EI_NIDENT 16 /* First non-ident header byte */ 144 145 /* e_ident[EI_MAG0,EI_MAG3] */ 146 #define ELFMAG0 0x7f 147 #define ELFMAG1 'E' 148 #define ELFMAG2 'L' 149 #define ELFMAG3 'F' 150 #define ELFMAG "\177ELF" 151 #define SELFMAG 4 152 153 /* e_ident[EI_CLASS] */ 154 #define ELFCLASSNONE 0 /* Invalid class */ 155 #define ELFCLASS32 1 /* 32-bit objects */ 156 #define ELFCLASS64 2 /* 64-bit objects */ 157 #define ELFCLASSNUM 3 158 159 /* e_ident[EI_DATA] */ 160 #define ELFDATANONE 0 /* Invalid data encoding */ 161 #define ELFDATA2LSB 1 /* 2's complement values, LSB first */ 162 #define ELFDATA2MSB 2 /* 2's complement values, MSB first */ 163 164 /* e_ident[EI_VERSION] */ 165 #define EV_NONE 0 /* Invalid version */ 166 #define EV_CURRENT 1 /* Current version */ 167 #define EV_NUM 2 168 169 /* e_ident[EI_OSABI] */ 170 #define ELFOSABI_SYSV 0 /* UNIX System V ABI */ 171 #define ELFOSABI_HPUX 1 /* HP-UX operating system */ 172 #define ELFOSABI_NETBSD 2 /* NetBSD */ 173 #define ELFOSABI_LINUX 3 /* GNU/Linux */ 174 #define ELFOSABI_HURD 4 /* GNU/Hurd */ 175 #define ELFOSABI_86OPEN 5 /* 86Open */ 176 #define ELFOSABI_SOLARIS 6 /* Solaris */ 177 #define ELFOSABI_MONTEREY 7 /* Monterey */ 178 #define ELFOSABI_IRIX 8 /* IRIX */ 179 #define ELFOSABI_FREEBSD 9 /* FreeBSD */ 180 #define ELFOSABI_TRU64 10 /* TRU64 UNIX */ 181 #define ELFOSABI_MODESTO 11 /* Novell Modesto */ 182 #define ELFOSABI_OPENBSD 12 /* OpenBSD */ 183 #define ELFOSABI_OPENVMS 13 /* OpenVMS */ 184 #define ELFOSABI_NSK 14 /* HP Non-Stop Kernel */ 185 #define ELFOSABI_AROS 15 /* Amiga Research OS */ 186 /* Unofficial OSABIs follow */ 187 #define ELFOSABI_ARM 97 /* ARM */ 188 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ 189 190 #define ELFOSABI_NONE ELFOSABI_SYSV 191 #define ELFOSABI_AIX ELFOSABI_MONTEREY 192 193 /* e_type */ 194 #define ET_NONE 0 /* No file type */ 195 #define ET_REL 1 /* Relocatable file */ 196 #define ET_EXEC 2 /* Executable file */ 197 #define ET_DYN 3 /* Shared object file */ 198 #define ET_CORE 4 /* Core file */ 199 #define ET_NUM 5 200 201 #define ET_LOOS 0xfe00 /* Operating system specific range */ 202 #define ET_HIOS 0xfeff 203 #define ET_LOPROC 0xff00 /* Processor-specific range */ 204 #define ET_HIPROC 0xffff 205 206 /* e_machine */ 207 #define EM_NONE 0 /* No machine */ 208 #define EM_M32 1 /* AT&T WE 32100 */ 209 #define EM_SPARC 2 /* SPARC */ 210 #define EM_386 3 /* Intel 80386 */ 211 #define EM_68K 4 /* Motorola 68000 */ 212 #define EM_88K 5 /* Motorola 88000 */ 213 #define EM_486 6 /* Intel 80486 */ 214 #define EM_860 7 /* Intel 80860 */ 215 #define EM_MIPS 8 /* MIPS I Architecture */ 216 #define EM_S370 9 /* Amdahl UTS on System/370 */ 217 #define EM_MIPS_RS3_LE 10 /* MIPS RS3000 Little-endian */ 218 /* 11-14 - Reserved */ 219 #define EM_RS6000 11 /* IBM RS/6000 XXX reserved */ 220 #define EM_PARISC 15 /* Hewlett-Packard PA-RISC */ 221 #define EM_NCUBE 16 /* NCube XXX reserved */ 222 #define EM_VPP500 17 /* Fujitsu VPP500 */ 223 #define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */ 224 #define EM_960 19 /* Intel 80960 */ 225 #define EM_PPC 20 /* PowerPC */ 226 #define EM_PPC64 21 /* 64-bit PowerPC */ 227 /* 22-35 - Reserved */ 228 #define EM_S390 22 /* System/390 XXX reserved */ 229 #define EM_V800 36 /* NEC V800 */ 230 #define EM_FR20 37 /* Fujitsu FR20 */ 231 #define EM_RH32 38 /* TRW RH-32 */ 232 #define EM_RCE 39 /* Motorola RCE */ 233 #define EM_ARM 40 /* Advanced RISC Machines ARM */ 234 #define EM_ALPHA 41 /* DIGITAL Alpha */ 235 #define EM_SH 42 /* Hitachi Super-H */ 236 #define EM_SPARCV9 43 /* SPARC Version 9 */ 237 #define EM_TRICORE 44 /* Siemens Tricore */ 238 #define EM_ARC 45 /* Argonaut RISC Core */ 239 #define EM_H8_300 46 /* Hitachi H8/300 */ 240 #define EM_H8_300H 47 /* Hitachi H8/300H */ 241 #define EM_H8S 48 /* Hitachi H8S */ 242 #define EM_H8_500 49 /* Hitachi H8/500 */ 243 #define EM_IA_64 50 /* Intel Merced Processor */ 244 #define EM_MIPS_X 51 /* Stanford MIPS-X */ 245 #define EM_COLDFIRE 52 /* Motorola Coldfire */ 246 #define EM_68HC12 53 /* Motorola MC68HC12 */ 247 #define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator */ 248 #define EM_PCP 55 /* Siemens PCP */ 249 #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */ 250 #define EM_NDR1 57 /* Denso NDR1 microprocessor */ 251 #define EM_STARCORE 58 /* Motorola Star*Core processor */ 252 #define EM_ME16 59 /* Toyota ME16 processor */ 253 #define EM_ST100 60 /* STMicroelectronics ST100 processor */ 254 #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded family processor */ 255 #define EM_X86_64 62 /* AMD x86-64 architecture */ 256 #define EM_PDSP 63 /* Sony DSP Processor */ 257 #define EM_PDP10 64 /* Digital Equipment Corp. PDP-10 */ 258 #define EM_PDP11 65 /* Digital Equipment Corp. PDP-11 */ 259 #define EM_FX66 66 /* Siemens FX66 microcontroller */ 260 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 bit microcontroller */ 261 #define EM_ST7 68 /* STMicroelectronics ST7 8-bit microcontroller */ 262 #define EM_68HC16 69 /* Motorola MC68HC16 Microcontroller */ 263 #define EM_68HC11 70 /* Motorola MC68HC11 Microcontroller */ 264 #define EM_68HC08 71 /* Motorola MC68HC08 Microcontroller */ 265 #define EM_68HC05 72 /* Motorola MC68HC05 Microcontroller */ 266 #define EM_SVX 73 /* Silicon Graphics SVx */ 267 #define EM_ST19 74 /* STMicroelectronics ST19 8-bit CPU */ 268 #define EM_VAX 75 /* Digital VAX */ 269 #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ 270 #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded CPU */ 271 #define EM_FIREPATH 78 /* Element 14 64-bit DSP processor */ 272 #define EM_ZSP 79 /* LSI Logic's 16-bit DSP processor */ 273 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ 274 #define EM_HUANY 81 /* Harvard's machine-independent format */ 275 #define EM_PRISM 82 /* SiTera Prism */ 276 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ 277 #define EM_FR30 84 /* Fujitsu FR30 */ 278 #define EM_D10V 85 /* Mitsubishi D10V */ 279 #define EM_D30V 86 /* Mitsubishi D30V */ 280 #define EM_V850 87 /* NEC v850 */ 281 #define EM_M32R 88 /* Mitsubishi M32R */ 282 #define EM_MN10300 89 /* Matsushita MN10300 */ 283 #define EM_MN10200 90 /* Matsushita MN10200 */ 284 #define EM_PJ 91 /* picoJava */ 285 #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ 286 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ 287 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ 288 #define EM_VIDEOCORE 95 /* Alphamosaic VideoCore processor */ 289 #define EM_TMM_GPP 96 /* Thompson Multimedia General Purpose Processor */ 290 #define EM_NS32K 97 /* National Semiconductor 32000 series */ 291 #define EM_TPC 98 /* Tenor Network TPC processor */ 292 #define EM_SNP1K 99 /* Trebia SNP 1000 processor */ 293 #define EM_ST200 100 /* STMicroelectronics ST200 microcontroller */ 294 #define EM_IP2K 101 /* Ubicom IP2xxx microcontroller family */ 295 #define EM_MAX 102 /* MAX processor */ 296 #define EM_CR 103 /* National Semiconductor CompactRISC micorprocessor */ 297 #define EM_F2MC16 104 /* Fujitsu F2MC16 */ 298 #define EM_MSP430 105 /* Texas Instruments MSP430 */ 299 #define EM_BLACKFIN 106 /* Analog Devices Blackfin DSP */ 300 #define EM_SE_C33 107 /* Seiko Epson S1C33 family */ 301 #define EM_SEP 108 /* Sharp embedded microprocessor */ 302 #define EM_ARCA 109 /* Arca RISC microprocessor */ 303 #define EM_UNICORE 110 /* UNICORE from PKU-Unity Ltd. and MPRC Peking University */ 304 #define EM_AARCH64 183 /* AArch64 64-bit ARM microprocessor */ 305 306 /* Unofficial machine types follow */ 307 #define EM_AVR32 6317 /* used by NetBSD/avr32 */ 308 #define EM_ALPHA_EXP 36902 /* used by NetBSD/alpha; obsolete */ 309 #define EM_NUM 36903 310 311 /* 312 * Program Header 313 */ 314 typedef struct { 315 Elf32_Word p_type; /* entry type */ 316 Elf32_Off p_offset; /* offset */ 317 Elf32_Addr p_vaddr; /* virtual address */ 318 Elf32_Addr p_paddr; /* physical address */ 319 Elf32_Word p_filesz; /* file size */ 320 Elf32_Word p_memsz; /* memory size */ 321 Elf32_Word p_flags; /* flags */ 322 Elf32_Word p_align; /* memory & file alignment */ 323 } Elf32_Phdr; 324 325 typedef struct { 326 Elf64_Word p_type; /* entry type */ 327 Elf64_Word p_flags; /* flags */ 328 Elf64_Off p_offset; /* offset */ 329 Elf64_Addr p_vaddr; /* virtual address */ 330 Elf64_Addr p_paddr; /* physical address */ 331 Elf64_Xword p_filesz; /* file size */ 332 Elf64_Xword p_memsz; /* memory size */ 333 Elf64_Xword p_align; /* memory & file alignment */ 334 } Elf64_Phdr; 335 336 /* p_type */ 337 #define PT_NULL 0 /* Program header table entry unused */ 338 #define PT_LOAD 1 /* Loadable program segment */ 339 #define PT_DYNAMIC 2 /* Dynamic linking information */ 340 #define PT_INTERP 3 /* Program interpreter */ 341 #define PT_NOTE 4 /* Auxiliary information */ 342 #define PT_SHLIB 5 /* Reserved, unspecified semantics */ 343 #define PT_PHDR 6 /* Entry for header table itself */ 344 #define PT_TLS 7 /* TLS initialisation image */ 345 #define PT_NUM 8 346 347 #define PT_LOOS 0x60000000 /* OS-specific range */ 348 349 /* GNU-specific */ 350 #define PT_GNU_EH_FRAME 0x6474e550 /* EH frame segment */ 351 #define PT_GNU_STACK 0x6474e551 /* Indicate executable stack */ 352 #define PT_GNU_RELRO 0x6474e552 /* Make read-only after relocation */ 353 354 #define PT_HIOS 0x6fffffff 355 #define PT_LOPROC 0x70000000 /* Processor-specific range */ 356 #define PT_HIPROC 0x7fffffff 357 358 #define PT_MIPS_REGINFO 0x70000000 359 360 /* p_flags */ 361 #define PF_R 0x4 /* Segment is readable */ 362 #define PF_W 0x2 /* Segment is writable */ 363 #define PF_X 0x1 /* Segment is executable */ 364 365 #define PF_MASKOS 0x0ff00000 /* Operating system specific values */ 366 #define PF_MASKPROC 0xf0000000 /* Processor-specific values */ 367 368 /* Extended program header index. */ 369 #define PN_XNUM 0xffff 370 371 /* 372 * Section Headers 373 */ 374 typedef struct { 375 Elf32_Word sh_name; /* section name (.shstrtab index) */ 376 Elf32_Word sh_type; /* section type */ 377 Elf32_Word sh_flags; /* section flags */ 378 Elf32_Addr sh_addr; /* virtual address */ 379 Elf32_Off sh_offset; /* file offset */ 380 Elf32_Word sh_size; /* section size */ 381 Elf32_Word sh_link; /* link to another */ 382 Elf32_Word sh_info; /* misc info */ 383 Elf32_Word sh_addralign; /* memory alignment */ 384 Elf32_Word sh_entsize; /* table entry size */ 385 } Elf32_Shdr; 386 387 typedef struct { 388 Elf64_Word sh_name; /* section name (.shstrtab index) */ 389 Elf64_Word sh_type; /* section type */ 390 Elf64_Xword sh_flags; /* section flags */ 391 Elf64_Addr sh_addr; /* virtual address */ 392 Elf64_Off sh_offset; /* file offset */ 393 Elf64_Xword sh_size; /* section size */ 394 Elf64_Word sh_link; /* link to another */ 395 Elf64_Word sh_info; /* misc info */ 396 Elf64_Xword sh_addralign; /* memory alignment */ 397 Elf64_Xword sh_entsize; /* table entry size */ 398 } Elf64_Shdr; 399 400 /* sh_type */ 401 #define SHT_NULL 0 /* Section header table entry unused */ 402 #define SHT_PROGBITS 1 /* Program information */ 403 #define SHT_SYMTAB 2 /* Symbol table */ 404 #define SHT_STRTAB 3 /* String table */ 405 #define SHT_RELA 4 /* Relocation information w/ addend */ 406 #define SHT_HASH 5 /* Symbol hash table */ 407 #define SHT_DYNAMIC 6 /* Dynamic linking information */ 408 #define SHT_NOTE 7 /* Auxiliary information */ 409 #define SHT_NOBITS 8 /* No space allocated in file image */ 410 #define SHT_REL 9 /* Relocation information w/o addend */ 411 #define SHT_SHLIB 10 /* Reserved, unspecified semantics */ 412 #define SHT_DYNSYM 11 /* Symbol table for dynamic linker */ 413 #define SHT_INIT_ARRAY 14 /* Initialization function pointers */ 414 #define SHT_FINI_ARRAY 15 /* Termination function pointers */ 415 #define SHT_PREINIT_ARRAY 16 /* Pre-initialization function ptrs */ 416 #define SHT_GROUP 17 /* Section group */ 417 #define SHT_SYMTAB_SHNDX 18 /* Section indexes (see SHN_XINDEX) */ 418 #define SHT_NUM 19 419 420 #define SHT_LOOS 0x60000000 /* Operating system specific range */ 421 #define SHT_GNU_HASH 0x6ffffff6 /* GNU style symbol hash table */ 422 #define SHT_SUNW_move 0x6ffffffa 423 #define SHT_SUNW_syminfo 0x6ffffffc 424 #define SHT_SUNW_verdef 0x6ffffffd /* Versions defined by file */ 425 #define SHT_GNU_verdef SHT_SUNW_verdef 426 #define SHT_SUNW_verneed 0x6ffffffe /* Versions needed by file */ 427 #define SHT_GNU_verneed SHT_SUNW_verneed 428 #define SHT_SUNW_versym 0x6fffffff /* Symbol versions */ 429 #define SHT_GNU_versym SHT_SUNW_versym 430 #define SHT_HIOS 0x6fffffff 431 #define SHT_LOPROC 0x70000000 /* Processor-specific range */ 432 #define SHT_AMD64_UNWIND 0x70000001 /* unwind information */ 433 #define SHT_ARM_EXIDX 0x70000001 /* exception index table */ 434 #define SHT_ARM_PREEMPTMAP 0x70000002 /* BPABI DLL dynamic linking 435 * pre-emption map */ 436 #define SHT_ARM_ATTRIBUTES 0x70000003 /* Object file compatibility 437 * attributes */ 438 #define SHT_ARM_DEBUGOVERLAY 0x70000004 /* See DBGOVL for details */ 439 #define SHT_ARM_OVERLAYSECTION 0x70000005 440 #define SHT_HIPROC 0x7fffffff 441 #define SHT_LOUSER 0x80000000 /* Application-specific range */ 442 #define SHT_HIUSER 0xffffffff 443 444 /* sh_flags */ 445 #define SHF_WRITE 0x00000001 /* Contains writable data */ 446 #define SHF_ALLOC 0x00000002 /* Occupies memory */ 447 #define SHF_EXECINSTR 0x00000004 /* Contains executable insns */ 448 #define SHF_MERGE 0x00000010 /* Might be merged */ 449 #define SHF_STRINGS 0x00000020 /* Contains nul terminated strings */ 450 #define SHF_INFO_LINK 0x00000040 /* "sh_info" contains SHT index */ 451 #define SHF_LINK_ORDER 0x00000080 /* Preserve order after combining */ 452 #define SHF_OS_NONCONFORMING 0x00000100 /* OS specific handling required */ 453 #define SHF_GROUP 0x00000200 /* Is member of a group */ 454 #define SHF_TLS 0x00000400 /* Holds thread-local data */ 455 #define SHF_MASKOS 0x0ff00000 /* Operating system specific values */ 456 #define SHF_MASKPROC 0xf0000000 /* Processor-specific values */ 457 #define SHF_ORDERED 0x40000000 /* Ordering requirement (Solaris) */ 458 #define SHF_EXCLUDE 0x80000000 /* Excluded unless unles ref/alloc 459 (Solaris).*/ 460 /* 461 * Symbol Table 462 */ 463 typedef struct { 464 Elf32_Word st_name; /* Symbol name (.strtab index) */ 465 Elf32_Word st_value; /* value of symbol */ 466 Elf32_Word st_size; /* size of symbol */ 467 Elf_Byte st_info; /* type / binding attrs */ 468 Elf_Byte st_other; /* unused */ 469 Elf32_Half st_shndx; /* section index of symbol */ 470 } Elf32_Sym; 471 472 typedef struct { 473 Elf64_Word st_name; /* Symbol name (.strtab index) */ 474 Elf_Byte st_info; /* type / binding attrs */ 475 Elf_Byte st_other; /* unused */ 476 Elf64_Half st_shndx; /* section index of symbol */ 477 Elf64_Addr st_value; /* value of symbol */ 478 Elf64_Xword st_size; /* size of symbol */ 479 } Elf64_Sym; 480 481 /* Symbol Table index of the undefined symbol */ 482 #define ELF_SYM_UNDEFINED 0 483 484 #define STN_UNDEF 0 /* undefined index */ 485 486 /* st_info: Symbol Bindings */ 487 #define STB_LOCAL 0 /* local symbol */ 488 #define STB_GLOBAL 1 /* global symbol */ 489 #define STB_WEAK 2 /* weakly defined global symbol */ 490 #define STB_NUM 3 491 492 #define STB_LOOS 10 /* Operating system specific range */ 493 #define STB_HIOS 12 494 #define STB_LOPROC 13 /* Processor-specific range */ 495 #define STB_HIPROC 15 496 497 /* st_info: Symbol Types */ 498 #define STT_NOTYPE 0 /* Type not specified */ 499 #define STT_OBJECT 1 /* Associated with a data object */ 500 #define STT_FUNC 2 /* Associated with a function */ 501 #define STT_SECTION 3 /* Associated with a section */ 502 #define STT_FILE 4 /* Associated with a file name */ 503 #define STT_COMMON 5 /* Uninitialised common block */ 504 #define STT_TLS 6 /* Thread local data object */ 505 #define STT_NUM 7 506 507 #define STT_LOOS 10 /* Operating system specific range */ 508 #define STT_HIOS 12 509 #define STT_LOPROC 13 /* Processor-specific range */ 510 #define STT_HIPROC 15 511 512 /* st_other: Visibility Types */ 513 #define STV_DEFAULT 0 /* use binding type */ 514 #define STV_INTERNAL 1 /* not referenced from outside */ 515 #define STV_HIDDEN 2 /* not visible, may be used via ptr */ 516 #define STV_PROTECTED 3 /* visible, not preemptible */ 517 #define STV_EXPORTED 4 518 #define STV_SINGLETON 5 519 #define STV_ELIMINATE 6 520 521 /* st_info/st_other utility macros */ 522 #define ELF_ST_BIND(info) ((uint32_t)(info) >> 4) 523 #define ELF_ST_TYPE(info) ((uint32_t)(info) & 0xf) 524 #define ELF_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | \ 525 ((type) & 0xf))) 526 #define ELF_ST_VISIBILITY(other) ((uint32_t)(other) & 3) 527 528 /* 529 * Special section indexes 530 */ 531 #define SHN_UNDEF 0 /* Undefined section */ 532 533 #define SHN_LORESERVE 0xff00 /* Reserved range */ 534 #define SHN_ABS 0xfff1 /* Absolute symbols */ 535 #define SHN_COMMON 0xfff2 /* Common symbols */ 536 #define SHN_XINDEX 0xffff /* Escape -- index stored elsewhere */ 537 #define SHN_HIRESERVE 0xffff 538 539 #define SHN_LOPROC 0xff00 /* Processor-specific range */ 540 #define SHN_HIPROC 0xff1f 541 #define SHN_LOOS 0xff20 /* Operating system specific range */ 542 #define SHN_HIOS 0xff3f 543 544 #define SHN_MIPS_ACOMMON 0xff00 545 #define SHN_MIPS_TEXT 0xff01 546 #define SHN_MIPS_DATA 0xff02 547 #define SHN_MIPS_SCOMMON 0xff03 548 549 /* 550 * Relocation Entries 551 */ 552 typedef struct { 553 Elf32_Word r_offset; /* where to do it */ 554 Elf32_Word r_info; /* index & type of relocation */ 555 } Elf32_Rel; 556 557 typedef struct { 558 Elf32_Word r_offset; /* where to do it */ 559 Elf32_Word r_info; /* index & type of relocation */ 560 Elf32_Sword r_addend; /* adjustment value */ 561 } Elf32_Rela; 562 563 /* r_info utility macros */ 564 #define ELF32_R_SYM(info) ((info) >> 8) 565 #define ELF32_R_TYPE(info) ((info) & 0xff) 566 #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) 567 568 typedef struct { 569 Elf64_Addr r_offset; /* where to do it */ 570 Elf64_Xword r_info; /* index & type of relocation */ 571 } Elf64_Rel; 572 573 typedef struct { 574 Elf64_Addr r_offset; /* where to do it */ 575 Elf64_Xword r_info; /* index & type of relocation */ 576 Elf64_Sxword r_addend; /* adjustment value */ 577 } Elf64_Rela; 578 579 /* r_info utility macros */ 580 #define ELF64_R_SYM(info) ((info) >> 32) 581 #define ELF64_R_TYPE(info) ((info) & 0xffffffff) 582 #define ELF64_R_INFO(sym,type) (((sym) << 32) + (type)) 583 584 /* 585 * Move entries 586 */ 587 typedef struct { 588 Elf32_Lword m_value; /* symbol value */ 589 Elf32_Word m_info; /* size + index */ 590 Elf32_Word m_poffset; /* symbol offset */ 591 Elf32_Half m_repeat; /* repeat count */ 592 Elf32_Half m_stride; /* stride info */ 593 } Elf32_Move; 594 595 #define ELF32_M_SYM(info) ((info) >> 8) 596 #define ELF32_M_SIZE(info) ((info) & 0xff) 597 #define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size)) 598 599 typedef struct { 600 Elf64_Lword m_value; /* symbol value */ 601 Elf64_Xword m_info; /* size + index */ 602 Elf64_Xword m_poffset; /* symbol offset */ 603 Elf64_Word m_repeat; /* repeat count */ 604 Elf64_Word m_stride; /* stride info */ 605 } Elf64_Move; 606 607 #define ELF64_M_SYM(info) ((info) >> 8) 608 #define ELF64_M_SIZE(info) ((info) & 0xff) 609 #define ELF64_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size)) 610 611 /* 612 * Hardware/software capabilities entry 613 */ 614 typedef struct { 615 Elf32_Word c_tag; /* entry tag value */ 616 union { 617 Elf32_Addr c_ptr; 618 Elf32_Word c_val; 619 } c_un; 620 } Elf32_Cap; 621 622 typedef struct { 623 Elf64_Xword c_tag; /* entry tag value */ 624 union { 625 Elf64_Addr c_ptr; 626 Elf64_Xword c_val; 627 } c_un; 628 } Elf64_Cap; 629 630 /* 631 * Dynamic Section structure array 632 */ 633 typedef struct { 634 Elf32_Word d_tag; /* entry tag value */ 635 union { 636 Elf32_Addr d_ptr; 637 Elf32_Word d_val; 638 } d_un; 639 } Elf32_Dyn; 640 641 typedef struct { 642 Elf64_Xword d_tag; /* entry tag value */ 643 union { 644 Elf64_Addr d_ptr; 645 Elf64_Xword d_val; 646 } d_un; 647 } Elf64_Dyn; 648 649 /* d_tag */ 650 #define DT_NULL 0 /* Marks end of dynamic array */ 651 #define DT_NEEDED 1 /* Name of needed library (DT_STRTAB offset) */ 652 #define DT_PLTRELSZ 2 /* Size, in bytes, of relocations in PLT */ 653 #define DT_PLTGOT 3 /* Address of PLT and/or GOT */ 654 #define DT_HASH 4 /* Address of symbol hash table */ 655 #define DT_STRTAB 5 /* Address of string table */ 656 #define DT_SYMTAB 6 /* Address of symbol table */ 657 #define DT_RELA 7 /* Address of Rela relocation table */ 658 #define DT_RELASZ 8 /* Size, in bytes, of DT_RELA table */ 659 #define DT_RELAENT 9 /* Size, in bytes, of one DT_RELA entry */ 660 #define DT_STRSZ 10 /* Size, in bytes, of DT_STRTAB table */ 661 #define DT_SYMENT 11 /* Size, in bytes, of one DT_SYMTAB entry */ 662 #define DT_INIT 12 /* Address of initialization function */ 663 #define DT_FINI 13 /* Address of termination function */ 664 #define DT_SONAME 14 /* Shared object name (DT_STRTAB offset) */ 665 #define DT_RPATH 15 /* Library search path (DT_STRTAB offset) */ 666 #define DT_SYMBOLIC 16 /* Start symbol search within local object */ 667 #define DT_REL 17 /* Address of Rel relocation table */ 668 #define DT_RELSZ 18 /* Size, in bytes, of DT_REL table */ 669 #define DT_RELENT 19 /* Size, in bytes, of one DT_REL entry */ 670 #define DT_PLTREL 20 /* Type of PLT relocation entries */ 671 #define DT_DEBUG 21 /* Used for debugging; unspecified */ 672 #define DT_TEXTREL 22 /* Relocations might modify non-writable seg */ 673 #define DT_JMPREL 23 /* Address of relocations associated with PLT */ 674 #define DT_BIND_NOW 24 /* Process all relocations at load-time */ 675 #define DT_INIT_ARRAY 25 /* Address of initialization function array */ 676 #define DT_FINI_ARRAY 26 /* Size, in bytes, of DT_INIT_ARRAY array */ 677 #define DT_INIT_ARRAYSZ 27 /* Address of termination function array */ 678 #define DT_FINI_ARRAYSZ 28 /* Size, in bytes, of DT_FINI_ARRAY array*/ 679 #define DT_RUNPATH 29 /* overrides DT_RPATH */ 680 #define DT_FLAGS 30 /* Encodes ORIGIN, SYMBOLIC, TEXTREL, BIND_NOW, STATIC_TLS */ 681 #define DT_ENCODING 31 /* ??? */ 682 #define DT_PREINIT_ARRAY 32 /* Address of pre-init function array */ 683 #define DT_PREINIT_ARRAYSZ 33 /* Size, in bytes, of DT_PREINIT_ARRAY array */ 684 #define DT_NUM 34 685 686 #define DT_LOOS 0x60000000 /* Operating system specific range */ 687 #define DT_VERSYM 0x6ffffff0 /* Symbol versions */ 688 #define DT_FLAGS_1 0x6ffffffb /* ELF dynamic flags */ 689 #define DT_VERDEF 0x6ffffffc /* Versions defined by file */ 690 #define DT_VERDEFNUM 0x6ffffffd /* Number of versions defined by file */ 691 #define DT_VERNEED 0x6ffffffe /* Versions needed by file */ 692 #define DT_VERNEEDNUM 0x6fffffff /* Number of versions needed by file */ 693 #define DT_HIOS 0x6fffffff 694 #define DT_LOPROC 0x70000000 /* Processor-specific range */ 695 #define DT_HIPROC 0x7fffffff 696 697 /* Flag values for DT_FLAGS */ 698 #define DF_ORIGIN 0x00000001 /* uses $ORIGIN */ 699 #define DF_SYMBOLIC 0x00000002 /* */ 700 #define DF_TEXTREL 0x00000004 /* */ 701 #define DF_BIND_NOW 0x00000008 /* */ 702 #define DF_STATICT_LS 0x00000010 /* */ 703 704 /* Flag values for DT_FLAGS_1 (incomplete) */ 705 #define DF_1_BIND_NOW 0x00000001 /* Same as DF_BIND_NOW */ 706 #define DF_1_NODELETE 0x00000008 /* Set the RTLD_NODELETE for object */ 707 #define DF_1_INITFIRST 0x00000020 /* Object's init/fini take priority */ 708 #define DF_1_NOOPEN 0x00000040 /* Do not allow loading on dlopen() */ 709 710 /* 711 * Auxiliary Vectors 712 */ 713 typedef struct { 714 Elf32_Word a_type; /* 32-bit id */ 715 Elf32_Word a_v; /* 32-bit id */ 716 } Aux32Info; 717 718 typedef struct { 719 Elf64_Word a_type; /* 32-bit id */ 720 Elf64_Xword a_v; /* 64-bit id */ 721 } Aux64Info; 722 723 /* a_type */ 724 #define AT_NULL 0 /* Marks end of array */ 725 #define AT_IGNORE 1 /* No meaning, a_un is undefined */ 726 #define AT_EXECFD 2 /* Open file descriptor of object file */ 727 #define AT_PHDR 3 /* &phdr[0] */ 728 #define AT_PHENT 4 /* sizeof(phdr[0]) */ 729 #define AT_PHNUM 5 /* # phdr entries */ 730 #define AT_PAGESZ 6 /* PAGESIZE */ 731 #define AT_BASE 7 /* Interpreter base addr */ 732 #define AT_FLAGS 8 /* Processor flags */ 733 #define AT_ENTRY 9 /* Entry address of executable */ 734 #define AT_DCACHEBSIZE 10 /* Data cache block size */ 735 #define AT_ICACHEBSIZE 11 /* Instruction cache block size */ 736 #define AT_UCACHEBSIZE 12 /* Unified cache block size */ 737 #define AT_STACKBASE 13 /* Base address of the main thread */ 738 739 /* Vendor specific */ 740 #define AT_MIPS_NOTELF 10 /* XXX a_val != 0 -> MIPS XCOFF executable */ 741 742 #define AT_EUID 2000 /* euid (solaris compatible numbers) */ 743 #define AT_RUID 2001 /* ruid (solaris compatible numbers) */ 744 #define AT_EGID 2002 /* egid (solaris compatible numbers) */ 745 #define AT_RGID 2003 /* rgid (solaris compatible numbers) */ 746 747 /* Solaris kernel specific */ 748 #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */ 749 #define AT_SUN_LDSHDR 2005 /* dynamic linker's section header */ 750 #define AT_SUN_LDNAME 2006 /* dynamic linker's name */ 751 #define AT_SUN_LPGSIZE 2007 /* large pagesize */ 752 753 /* Other information */ 754 #define AT_SUN_PLATFORM 2008 /* sysinfo(SI_PLATFORM) */ 755 #define AT_SUN_HWCAP 2009 /* process hardware capabilities */ 756 #define AT_SUN_IFLUSH 2010 /* do we need to flush the instruction cache? */ 757 #define AT_SUN_CPU 2011 /* CPU name */ 758 /* ibcs2 emulation band aid */ 759 #define AT_SUN_EMUL_ENTRY 2012 /* coff entry point */ 760 #define AT_SUN_EMUL_EXECFD 2013 /* coff file descriptor */ 761 /* Executable's fully resolved name */ 762 #define AT_SUN_EXECNAME 2014 763 764 /* 765 * Note Headers 766 */ 767 typedef struct { 768 Elf32_Word n_namesz; 769 Elf32_Word n_descsz; 770 Elf32_Word n_type; 771 } Elf32_Nhdr; 772 773 typedef struct { 774 Elf64_Word n_namesz; 775 Elf64_Word n_descsz; 776 Elf64_Word n_type; 777 } Elf64_Nhdr; 778 779 #define ELF_NOTE_GNU_NAMESZ 4 780 #define ELF_NOTE_GNU_NAME "GNU\0" 781 782 /* 783 * GNU-specific note type: ABI tag 784 * name: GNU\0 785 * namesz: 4 786 * desc: 787 * word[0]: OS tag 788 * word[1]: major version 789 * word[2]: minor version 790 * word[3]: teeny version 791 * descsz: 16 792 */ 793 /* GNU-specific note name and description sizes */ 794 #define ELF_NOTE_TYPE_ABI_TAG 1 795 #define ELF_NOTE_ABI_NAME ELF_NOTE_GNU_NAME 796 #define ELF_NOTE_ABI_NAMESZ ELF_NOTE_GNU_NAMESZ 797 #define ELF_NOTE_ABI_DESCSZ 16 798 /* GNU-specific OS/version value stuff */ 799 #define ELF_NOTE_ABI_OS_LINUX 0 800 #define ELF_NOTE_ABI_OS_HURD 1 801 #define ELF_NOTE_ABI_OS_SOLARIS 2 802 #define ELF_NOTE_ABI_OS_KFREEBSD 3 803 #define ELF_NOTE_ABI_OS_KNETBSD 4 804 805 /* 806 * GNU-specific note type: Hardware capabilities 807 * name: GNU\0 808 * namesz: 4 809 * desc: 810 * word[0]: Number of entries 811 * word[1]: Bitmask of enabled entries 812 * Followed by a byte id, and a NUL terminated string per entry 813 * descsz: variable 814 */ 815 #define ELF_NOTE_TYPE_GNU_HWCAP 2 816 817 /* 818 * GNU-specific note type: Build ID generated by ld 819 * name: GNU\0 820 * desc: 821 * word[0..4] SHA1 [default] 822 * or 823 * word[0..3] md5 or uuid 824 * descsz: 16 or 20 825 */ 826 #define ELF_NOTE_TYPE_GNU_BUILD_ID 3 827 828 /* SuSE-specific note type: ABI 829 * name: SuSE\0 830 * namesz: 5 831 * desc: 832 * half[0] = MMmm 833 * 834 * M = product major version 835 * m = product minor version 836 * descsz: 2 837 */ 838 #define ELF_NOTE_TYPE_SUSE_TAG 1 839 /* SuSE-specific note name and description sizes */ 840 #define ELF_NOTE_SUSE_NAMESZ 5 841 #define ELF_NOTE_SUSE_DESCSZ 2 842 /* SuSE-specific note name */ 843 #define ELF_NOTE_SUSE_NAME "SuSE\0" 844 845 /* SuSE-specific note type: version 846 * name: SuSE\0\0\0\0 847 * namesz: 8 848 * desc: 849 * word[0] = VVTTMMmm 850 * 851 * V = version of following data 852 * T = product type: [box, sles, nld, whatever] 853 * M = product major version 854 * m = product minor version 855 * descsz: 8 856 */ 857 #define ELF_NOTE_TYPE_SUSE_VERSION_TAG 0x45537553 /* SuSE in LE */ 858 /* SuSE-specific note name and description sizes */ 859 #define ELF_NOTE_SUSE_VERSION_NAMESZ 8 860 #define ELF_NOTE_SUSE_VERSION_DESCSZ 8 861 /* SuSE-specific note name */ 862 #define ELF_NOTE_SUSE_VERSION_NAME "SuSE\0\0\0\0" 863 864 /* NetBSD-specific note type: Emulation name. 865 * name: NetBSD\0\0 866 * namesz: 8 867 * desc: 868 * word[0]: MMmmrrpp00 869 * 870 * M = major version 871 * m = minor version 872 * r = release ["",A-Z,Z[A-Z] but numeric] 873 * p = patchlevel 874 * descsz: 4 875 */ 876 #define ELF_NOTE_TYPE_NETBSD_TAG 1 877 /* NetBSD-specific note name and description sizes */ 878 #define ELF_NOTE_NETBSD_NAMESZ 7 879 #define ELF_NOTE_NETBSD_DESCSZ 4 880 /* NetBSD-specific note name */ 881 #define ELF_NOTE_NETBSD_NAME "NetBSD\0\0" 882 883 #if defined(__minix) 884 #define ELF_NOTE_TYPE_MINIX_TAG 1 885 /* MINIX3-specific note name and description sizes */ 886 #define ELF_NOTE_MINIX_NAMESZ 6 887 #define ELF_NOTE_MINIX_DESCSZ 4 888 #define ELF_NOTE_MINIX_NAME "Minix\0\0\0" 889 #endif /* defined(__minix) */ 890 891 /* NetBSD-specific note type: Checksum. 892 * There should be 1 NOTE per PT_LOAD section. 893 * name: ??? 894 * namesz: ??? 895 * desc: 896 * a tuple of <phnum>(16),<chk-type>(16),<chk-value>. 897 * descsz: ??? 898 */ 899 #define ELF_NOTE_TYPE_CHECKSUM_TAG 2 900 #define ELF_NOTE_CHECKSUM_CRC32 1 901 #define ELF_NOTE_CHECKSUM_MD5 2 902 #define ELF_NOTE_CHECKSUM_SHA1 3 903 #define ELF_NOTE_CHECKSUM_SHA256 4 904 905 /* 906 * NetBSD-specific note type: PaX. 907 * There should be 1 NOTE per executable. 908 * name: PaX\0 909 * namesz: 4 910 * desc: 911 * word[0]: capability bitmask 912 * descsz: 4 913 */ 914 #define ELF_NOTE_TYPE_PAX_TAG 3 915 #define ELF_NOTE_PAX_MPROTECT 0x01 /* Force enable Mprotect */ 916 #define ELF_NOTE_PAX_NOMPROTECT 0x02 /* Force disable Mprotect */ 917 #define ELF_NOTE_PAX_GUARD 0x04 /* Force enable Segvguard */ 918 #define ELF_NOTE_PAX_NOGUARD 0x08 /* Force disable Servguard */ 919 #define ELF_NOTE_PAX_ASLR 0x10 /* Force enable ASLR */ 920 #define ELF_NOTE_PAX_NOASLR 0x20 /* Force disable ASLR */ 921 #define ELF_NOTE_PAX_NAMESZ 4 922 #define ELF_NOTE_PAX_NAME "PaX\0" 923 #define ELF_NOTE_PAX_DESCSZ 4 924 925 /* 926 * NetBSD-specific core file information. 927 * 928 * NetBSD ELF core files use notes to provide information about 929 * the process's state. The note name is "NetBSD-CORE" for 930 * information that is global to the process, and "NetBSD-CORE@nn", 931 * where "nn" is the lwpid of the LWP that the information belongs 932 * to (such as register state). 933 * 934 * We use the following note identifiers: 935 * 936 * ELF_NOTE_NETBSD_CORE_PROCINFO 937 * Note is a "netbsd_elfcore_procinfo" structure. 938 * 939 * We also use ptrace(2) request numbers (the ones that exist in 940 * machine-dependent space) to identify register info notes. The 941 * info in such notes is in the same format that ptrace(2) would 942 * export that information. 943 * 944 * Please try to keep the members of this structure nicely aligned, 945 * and if you add elements, add them to the end and bump the version. 946 */ 947 948 #define ELF_NOTE_NETBSD_CORE_NAME "NetBSD-CORE" 949 950 #define ELF_NOTE_NETBSD_CORE_PROCINFO 1 951 952 #define NETBSD_ELFCORE_PROCINFO_VERSION 1 953 954 struct netbsd_elfcore_procinfo { 955 /* Version 1 fields start here. */ 956 uint32_t cpi_version; /* our version */ 957 uint32_t cpi_cpisize; /* sizeof(this struct) */ 958 uint32_t cpi_signo; /* killing signal */ 959 uint32_t cpi_sigcode; /* signal code */ 960 uint32_t cpi_sigpend[4]; /* pending signals */ 961 uint32_t cpi_sigmask[4]; /* blocked signals */ 962 uint32_t cpi_sigignore[4]; /* ignored signals */ 963 uint32_t cpi_sigcatch[4]; /* caught signals */ 964 int32_t cpi_pid; /* process ID */ 965 int32_t cpi_ppid; /* parent process ID */ 966 int32_t cpi_pgrp; /* process group ID */ 967 int32_t cpi_sid; /* session ID */ 968 uint32_t cpi_ruid; /* real user ID */ 969 uint32_t cpi_euid; /* effective user ID */ 970 uint32_t cpi_svuid; /* saved user ID */ 971 uint32_t cpi_rgid; /* real group ID */ 972 uint32_t cpi_egid; /* effective group ID */ 973 uint32_t cpi_svgid; /* saved group ID */ 974 uint32_t cpi_nlwps; /* number of LWPs */ 975 int8_t cpi_name[32]; /* copy of p->p_comm */ 976 /* Add version 2 fields below here. */ 977 int32_t cpi_siglwp; /* LWP target of killing signal */ 978 }; 979 980 /* 981 * NetBSD-specific note type: MACHINE_ARCH. 982 * There should be 1 NOTE per executable. 983 * name: NetBSD\0 984 * namesz: 7 985 * desc: string 986 * descsz: variable 987 */ 988 #define ELF_NOTE_TYPE_MARCH_TAG 5 989 /* NetBSD-specific note name and description sizes */ 990 #define ELF_NOTE_MARCH_NAMESZ ELF_NOTE_NETBSD_NAMESZ 991 /* NetBSD-specific note name */ 992 #define ELF_NOTE_MARCH_NAME ELF_NOTE_NETBSD_NAME 993 994 /* 995 * NetBSD-specific note type: MCMODEL 996 * There should be 1 NOTE per executable. 997 * name: NetBSD\0 998 * namesz: 7 999 * code model: string 1000 */ 1001 1002 #define ELF_NOTE_TYPE_MCMODEL_TAG 6 1003 /* NetBSD-specific note name and description sizes */ 1004 #define ELF_NOTE_MCMODEL_NAMESZ ELF_NOTE_NETBSD_NAMESZ 1005 /* NetBSD-specific note name */ 1006 #define ELF_NOTE_MCMODEL_NAME ELF_NOTE_NETBSD_NAME 1007 1008 1009 #if !defined(ELFSIZE) && defined(ARCH_ELFSIZE) 1010 #define ELFSIZE ARCH_ELFSIZE 1011 #endif 1012 1013 #if defined(ELFSIZE) 1014 #define CONCAT(x,y) __CONCAT(x,y) 1015 #define ELFNAME(x) CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x))) 1016 #define ELFNAME2(x,y) CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y)))) 1017 #define ELFNAMEEND(x) CONCAT(x,CONCAT(_elf,ELFSIZE)) 1018 #define ELFDEFNNAME(x) CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x))) 1019 #endif 1020 1021 #if defined(ELFSIZE) && (ELFSIZE == 32) 1022 #define Elf_Ehdr Elf32_Ehdr 1023 #define Elf_Phdr Elf32_Phdr 1024 #define Elf_Shdr Elf32_Shdr 1025 #define Elf_Sym Elf32_Sym 1026 #define Elf_Rel Elf32_Rel 1027 #define Elf_Rela Elf32_Rela 1028 #define Elf_Dyn Elf32_Dyn 1029 #define Elf_Word Elf32_Word 1030 #define Elf_Sword Elf32_Sword 1031 #define Elf_Half Elf32_Half 1032 #define Elf_Addr Elf32_Addr 1033 #define Elf_Off Elf32_Off 1034 #define Elf_SOff Elf32_SOff 1035 #define Elf_Nhdr Elf32_Nhdr 1036 #define Elf_Verdef Elf32_Verdef 1037 #define Elf_Verdaux Elf32_Verdaux 1038 #define Elf_Verneed Elf32_Verneed 1039 #define Elf_Vernaux Elf32_Vernaux 1040 #define Elf_Versym Elf32_Versym 1041 1042 #define ELF_R_SYM ELF32_R_SYM 1043 #define ELF_R_TYPE ELF32_R_TYPE 1044 #define ELFCLASS ELFCLASS32 1045 1046 #define AuxInfo Aux32Info 1047 #elif defined(ELFSIZE) && (ELFSIZE == 64) 1048 #define Elf_Ehdr Elf64_Ehdr 1049 #define Elf_Phdr Elf64_Phdr 1050 #define Elf_Shdr Elf64_Shdr 1051 #define Elf_Sym Elf64_Sym 1052 #define Elf_Rel Elf64_Rel 1053 #define Elf_Rela Elf64_Rela 1054 #define Elf_Dyn Elf64_Dyn 1055 #define Elf_Word Elf64_Word 1056 #define Elf_Sword Elf64_Sword 1057 #define Elf_Half Elf64_Half 1058 #define Elf_Addr Elf64_Addr 1059 #define Elf_Off Elf64_Off 1060 #define Elf_SOff Elf64_SOff 1061 #define Elf_Nhdr Elf64_Nhdr 1062 #define Elf_Verdef Elf64_Verdef 1063 #define Elf_Verdaux Elf64_Verdaux 1064 #define Elf_Verneed Elf64_Verneed 1065 #define Elf_Vernaux Elf64_Vernaux 1066 #define Elf_Versym Elf64_Versym 1067 1068 #define ELF_R_SYM ELF64_R_SYM 1069 #define ELF_R_TYPE ELF64_R_TYPE 1070 #define ELFCLASS ELFCLASS64 1071 1072 #define AuxInfo Aux64Info 1073 #endif 1074 1075 #ifndef Elf_Symindx 1076 #define Elf_Symindx uint32_t 1077 #endif 1078 1079 #define ELF32_ST_BIND(info) ELF_ST_BIND(info) 1080 #define ELF32_ST_TYPE(info) ELF_ST_TYPE(info) 1081 #define ELF32_ST_INFO(bind,type) ELF_ST_INFO(bind,type) 1082 #define ELF32_ST_VISIBILITY(other) ELF_ST_VISIBILITY(other) 1083 1084 #define ELF64_ST_BIND(info) ELF_ST_BIND(info) 1085 #define ELF64_ST_TYPE(info) ELF_ST_TYPE(info) 1086 #define ELF64_ST_INFO(bind,type) ELF_ST_INFO(bind,type) 1087 #define ELF64_ST_VISIBILITY(other) ELF_ST_VISIBILITY(other) 1088 1089 typedef struct { 1090 Elf32_Half si_boundto; /* direct bindings - symbol bound to */ 1091 Elf32_Half si_flags; /* per symbol flags */ 1092 } Elf32_Syminfo; 1093 1094 typedef struct { 1095 Elf64_Word si_boundto; /* direct bindings - symbol bound to */ 1096 Elf64_Word si_flags; /* per symbol flags */ 1097 } Elf64_Syminfo; 1098 1099 #define SYMINFO_FLG_DIRECT 0x0001 /* symbol ref has direct association 1100 to object containing definition */ 1101 #define SYMINFO_FLG_PASSTHRU 0x0002 /* ignored - see SYMINFO_FLG_FILTER */ 1102 #define SYMINFO_FLG_COPY 0x0004 /* symbol is a copy-reloc */ 1103 #define SYMINFO_FLG_LAZYLOAD 0x0008 /* object containing defn should be 1104 lazily-loaded */ 1105 #define SYMINFO_FLG_DIRECTBIND 0x0010 /* ref should be bound directly to 1106 object containing definition */ 1107 #define SYMINFO_FLG_NOEXTDIRECT 0x0020 /* don't let an external reference 1108 directly bind to this symbol */ 1109 #define SYMINFO_FLG_FILTER 0x0002 /* symbol ref is associated to a */ 1110 #define SYMINFO_FLG_AUXILIARY 0x0040 /* standard or auxiliary filter */ 1111 1112 #define SYMINFO_BT_SELF 0xffff /* symbol bound to self */ 1113 #define SYMINFO_BT_PARENT 0xfffe /* symbol bound to parent */ 1114 #define SYMINFO_BT_NONE 0xfffd /* no special symbol binding */ 1115 #define SYMINFO_BT_EXTERN 0xfffc /* symbol defined as external */ 1116 #define SYMINFO_BT_LOWRESERVE 0xff00 /* beginning of reserved entries */ 1117 1118 #define SYMINFO_NONE 0 /* Syminfo version */ 1119 #define SYMINFO_CURRENT 1 1120 #define SYMINFO_NUM 2 1121 1122 /* 1123 * These constants are used for Elf32_Verdef struct's version number. 1124 */ 1125 #define VER_DEF_NONE 0 1126 #define VER_DEF_CURRENT 1 1127 1128 /* 1129 * These constants are used for Elf32_Verdef struct's vd_ndx. 1130 */ 1131 #define VER_DEF_IDX(x) VER_NDX(x) 1132 1133 /* 1134 * These constants are used for Elf32_Verdef struct's vd_flags. 1135 */ 1136 #define VER_FLG_BASE 0x1 1137 #define VER_FLG_WEAK 0x2 1138 1139 /* 1140 * These are used in an Elf32_Versym field. 1141 */ 1142 #define VER_NDX_LOCAL 0 1143 #define VER_NDX_GLOBAL 1 1144 #define VER_NDX_GIVEN 2 1145 1146 /* 1147 * These constants are used for Elf32_Verneed struct's version number. 1148 */ 1149 #define VER_NEED_NONE 0 1150 #define VER_NEED_CURRENT 1 1151 1152 /* 1153 * These constants are used for Elf32_Vernaux struct's vna_other. 1154 */ 1155 #define VER_NEED_HIDDEN VER_NDX_HIDDEN 1156 #define VER_NEED_IDX(x) VER_NDX(x) 1157 1158 /* index */ 1159 #define VER_NDX_HIDDEN 0x8000 1160 #define VER_NDX(x) ((x) & ~VER_NDX_HIDDEN) 1161 1162 /* 1163 * GNU Extension hidding symbol 1164 */ 1165 #define VERSYM_HIDDEN 0x8000 1166 #define VERSYM_VERSION 0x7fff 1167 1168 #define ELF_VER_CHR '@' 1169 1170 /* 1171 * These are current size independent. 1172 */ 1173 1174 typedef struct { 1175 Elf32_Half vd_version; /* version number of structure */ 1176 Elf32_Half vd_flags; /* flags (VER_FLG_*) */ 1177 Elf32_Half vd_ndx; /* version index */ 1178 Elf32_Half vd_cnt; /* number of verdaux entries */ 1179 Elf32_Word vd_hash; /* hash of name */ 1180 Elf32_Word vd_aux; /* offset to verdaux entries */ 1181 Elf32_Word vd_next; /* offset to next verdef */ 1182 } Elf32_Verdef; 1183 typedef Elf32_Verdef Elf64_Verdef; 1184 1185 typedef struct { 1186 Elf32_Word vda_name; /* string table offset of name */ 1187 Elf32_Word vda_next; /* offset to verdaux */ 1188 } Elf32_Verdaux; 1189 typedef Elf32_Verdaux Elf64_Verdaux; 1190 1191 typedef struct { 1192 Elf32_Half vn_version; /* version number of structure */ 1193 Elf32_Half vn_cnt; /* number of vernaux entries */ 1194 Elf32_Word vn_file; /* string table offset of library name*/ 1195 Elf32_Word vn_aux; /* offset to vernaux entries */ 1196 Elf32_Word vn_next; /* offset to next verneed */ 1197 } Elf32_Verneed; 1198 typedef Elf32_Verneed Elf64_Verneed; 1199 1200 typedef struct { 1201 Elf32_Word vna_hash; /* Hash of dependency name */ 1202 Elf32_Half vna_flags; /* flags (VER_FLG_*) */ 1203 Elf32_Half vna_other; /* unused */ 1204 Elf32_Word vna_name; /* string table offset to version name*/ 1205 Elf32_Word vna_next; /* offset to next vernaux */ 1206 } Elf32_Vernaux; 1207 typedef Elf32_Vernaux Elf64_Vernaux; 1208 1209 typedef struct { 1210 Elf32_Half vs_vers; 1211 } Elf32_Versym; 1212 typedef Elf32_Versym Elf64_Versym; 1213 1214 #ifdef _KERNEL 1215 1216 #define ELF_AUX_ENTRIES 15 /* Max size of aux array passed to loader */ 1217 #define ELF32_NO_ADDR (~(Elf32_Addr)0) /* Indicates addr. not yet filled in */ 1218 #define ELF32_LINK_ADDR ((Elf32_Addr)-2) /* advises to use link address */ 1219 #define ELF64_NO_ADDR (~(Elf64_Addr)0) /* Indicates addr. not yet filled in */ 1220 #define ELF64_LINK_ADDR ((Elf64_Addr)-2) /* advises to use link address */ 1221 1222 #if defined(ELFSIZE) && (ELFSIZE == 64) 1223 #define ELF_NO_ADDR ELF64_NO_ADDR 1224 #define ELF_LINK_ADDR ELF64_LINK_ADDR 1225 #elif defined(ELFSIZE) && (ELFSIZE == 32) 1226 #define ELF_NO_ADDR ELF32_NO_ADDR 1227 #define ELF_LINK_ADDR ELF32_LINK_ADDR 1228 #endif 1229 1230 #ifndef ELF32_EHDR_FLAGS_OK 1231 #define ELF32_EHDR_FLAGS_OK(eh) 1 1232 #endif 1233 1234 #ifndef ELF64_EHDR_FLAGS_OK 1235 #define ELF64_EHDR_FLAGS_OK(eh) 1 1236 #endif 1237 1238 #if defined(ELFSIZE) && (ELFSIZE == 64) 1239 #define ELF_EHDR_FLAGS_OK(eh) ELF64_EHDR_FLAGS_OK(eh) 1240 #else 1241 #define ELF_EHDR_FLAGS_OK(eh) ELF32_EHDR_FLAGS_OK(eh) 1242 #endif 1243 1244 #if defined(ELFSIZE) 1245 struct elf_args { 1246 Elf_Addr arg_entry; /* program entry point */ 1247 Elf_Addr arg_interp; /* Interpreter load address */ 1248 Elf_Addr arg_phaddr; /* program header address */ 1249 Elf_Addr arg_phentsize; /* Size of program header */ 1250 Elf_Addr arg_phnum; /* Number of program headers */ 1251 }; 1252 #endif 1253 1254 #ifdef _KERNEL_OPT 1255 #include "opt_execfmt.h" 1256 #endif 1257 1258 struct ps_strings; 1259 1260 #ifdef EXEC_ELF32 1261 int exec_elf32_makecmds(struct lwp *, struct exec_package *); 1262 int elf32_copyargs(struct lwp *, struct exec_package *, 1263 struct ps_strings *, char **, void *); 1264 1265 int coredump_elf32(struct lwp *, void *); 1266 int coredump_writenote_elf32(struct proc *, void *, Elf32_Nhdr *, 1267 const char *, void *); 1268 1269 int elf32_check_header(Elf32_Ehdr *, int); 1270 #endif 1271 1272 #ifdef EXEC_ELF64 1273 int exec_elf64_makecmds(struct lwp *, struct exec_package *); 1274 int elf64_copyargs(struct lwp *, struct exec_package *, 1275 struct ps_strings *, char **, void *); 1276 1277 int coredump_elf64(struct lwp *, void *); 1278 int coredump_writenote_elf64(struct proc *, void *, Elf64_Nhdr *, 1279 const char *, void *); 1280 1281 int elf64_check_header(Elf64_Ehdr *, int); 1282 #endif 1283 1284 #endif /* _KERNEL */ 1285 1286 #endif /* !_SYS_EXEC_ELF_H_ */ 1287