1 /* $NetBSD: exec_elf.h,v 1.108 2010/12/24 12:41:43 skrll 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 */ 304 305 /* Unofficial machine types follow */ 306 #define EM_AVR32 6317 /* used by NetBSD/avr32 */ 307 #define EM_ALPHA_EXP 36902 /* used by NetBSD/alpha; obsolete */ 308 #define EM_NUM 36903 309 310 /* 311 * Program Header 312 */ 313 typedef struct { 314 Elf32_Word p_type; /* entry type */ 315 Elf32_Off p_offset; /* offset */ 316 Elf32_Addr p_vaddr; /* virtual address */ 317 Elf32_Addr p_paddr; /* physical address */ 318 Elf32_Word p_filesz; /* file size */ 319 Elf32_Word p_memsz; /* memory size */ 320 Elf32_Word p_flags; /* flags */ 321 Elf32_Word p_align; /* memory & file alignment */ 322 } Elf32_Phdr; 323 324 typedef struct { 325 Elf64_Word p_type; /* entry type */ 326 Elf64_Word p_flags; /* flags */ 327 Elf64_Off p_offset; /* offset */ 328 Elf64_Addr p_vaddr; /* virtual address */ 329 Elf64_Addr p_paddr; /* physical address */ 330 Elf64_Xword p_filesz; /* file size */ 331 Elf64_Xword p_memsz; /* memory size */ 332 Elf64_Xword p_align; /* memory & file alignment */ 333 } Elf64_Phdr; 334 335 /* p_type */ 336 #define PT_NULL 0 /* Program header table entry unused */ 337 #define PT_LOAD 1 /* Loadable program segment */ 338 #define PT_DYNAMIC 2 /* Dynamic linking information */ 339 #define PT_INTERP 3 /* Program interpreter */ 340 #define PT_NOTE 4 /* Auxiliary information */ 341 #define PT_SHLIB 5 /* Reserved, unspecified semantics */ 342 #define PT_PHDR 6 /* Entry for header table itself */ 343 #define PT_TLS 7 /* TLS initialisation image */ 344 #define PT_NUM 8 345 346 #define PT_LOOS 0x60000000 /* OS-specific range */ 347 #define PT_GNU_EH_FRAME 0x6474e550 /* GNU-specific EH frame segment */ 348 #define PT_HIOS 0x6fffffff 349 #define PT_LOPROC 0x70000000 /* Processor-specific range */ 350 #define PT_HIPROC 0x7fffffff 351 352 #define PT_MIPS_REGINFO 0x70000000 353 354 /* p_flags */ 355 #define PF_R 0x4 /* Segment is readable */ 356 #define PF_W 0x2 /* Segment is writable */ 357 #define PF_X 0x1 /* Segment is executable */ 358 359 #define PF_MASKOS 0x0ff00000 /* Operating system specific values */ 360 #define PF_MASKPROC 0xf0000000 /* Processor-specific values */ 361 362 /* Extended program header index. */ 363 #define PN_XNUM 0xffff 364 365 /* 366 * Section Headers 367 */ 368 typedef struct { 369 Elf32_Word sh_name; /* section name (.shstrtab index) */ 370 Elf32_Word sh_type; /* section type */ 371 Elf32_Word sh_flags; /* section flags */ 372 Elf32_Addr sh_addr; /* virtual address */ 373 Elf32_Off sh_offset; /* file offset */ 374 Elf32_Word sh_size; /* section size */ 375 Elf32_Word sh_link; /* link to another */ 376 Elf32_Word sh_info; /* misc info */ 377 Elf32_Word sh_addralign; /* memory alignment */ 378 Elf32_Word sh_entsize; /* table entry size */ 379 } Elf32_Shdr; 380 381 typedef struct { 382 Elf64_Word sh_name; /* section name (.shstrtab index) */ 383 Elf64_Word sh_type; /* section type */ 384 Elf64_Xword sh_flags; /* section flags */ 385 Elf64_Addr sh_addr; /* virtual address */ 386 Elf64_Off sh_offset; /* file offset */ 387 Elf64_Xword sh_size; /* section size */ 388 Elf64_Word sh_link; /* link to another */ 389 Elf64_Word sh_info; /* misc info */ 390 Elf64_Xword sh_addralign; /* memory alignment */ 391 Elf64_Xword sh_entsize; /* table entry size */ 392 } Elf64_Shdr; 393 394 /* sh_type */ 395 #define SHT_NULL 0 /* Section header table entry unused */ 396 #define SHT_PROGBITS 1 /* Program information */ 397 #define SHT_SYMTAB 2 /* Symbol table */ 398 #define SHT_STRTAB 3 /* String table */ 399 #define SHT_RELA 4 /* Relocation information w/ addend */ 400 #define SHT_HASH 5 /* Symbol hash table */ 401 #define SHT_DYNAMIC 6 /* Dynamic linking information */ 402 #define SHT_NOTE 7 /* Auxiliary information */ 403 #define SHT_NOBITS 8 /* No space allocated in file image */ 404 #define SHT_REL 9 /* Relocation information w/o addend */ 405 #define SHT_SHLIB 10 /* Reserved, unspecified semantics */ 406 #define SHT_DYNSYM 11 /* Symbol table for dynamic linker */ 407 #define SHT_INIT_ARRAY 14 /* Initialization function pointers */ 408 #define SHT_FINI_ARRAY 15 /* Termination function pointers */ 409 #define SHT_PREINIT_ARRAY 16 /* Pre-initialization function ptrs */ 410 #define SHT_GROUP 17 /* Section group */ 411 #define SHT_SYMTAB_SHNDX 18 /* Section indexes (see SHN_XINDEX) */ 412 #define SHT_NUM 19 413 414 #define SHT_LOOS 0x60000000 /* Operating system specific range */ 415 #define SHT_SUNW_move 0x6ffffffa 416 #define SHT_SUNW_syminfo 0x6ffffffc 417 #define SHT_SUNW_verdef 0x6ffffffd /* Versions defined by file */ 418 #define SHT_GNU_verdef SHT_SUNW_verdef 419 #define SHT_SUNW_verneed 0x6ffffffe /* Versions needed by file */ 420 #define SHT_GNU_verneed SHT_SUNW_verneed 421 #define SHT_SUNW_versym 0x6fffffff /* Symbol versions */ 422 #define SHT_GNU_versym SHT_SUNW_versym 423 #define SHT_HIOS 0x6fffffff 424 #define SHT_LOPROC 0x70000000 /* Processor-specific range */ 425 #define SHT_AMD64_UNWIND 0x70000001 /* unwind information */ 426 #define SHT_HIPROC 0x7fffffff 427 #define SHT_LOUSER 0x80000000 /* Application-specific range */ 428 #define SHT_HIUSER 0xffffffff 429 430 /* sh_flags */ 431 #define SHF_WRITE 0x1 /* Section contains writable data */ 432 #define SHF_ALLOC 0x2 /* Section occupies memory */ 433 #define SHF_EXECINSTR 0x4 /* Section contains executable insns */ 434 435 #define SHF_MASKOS 0x0f000000 /* Operating system specific values */ 436 #define SHF_MASKPROC 0xf0000000 /* Processor-specific values */ 437 438 /* 439 * Symbol Table 440 */ 441 typedef struct { 442 Elf32_Word st_name; /* Symbol name (.strtab index) */ 443 Elf32_Word st_value; /* value of symbol */ 444 Elf32_Word st_size; /* size of symbol */ 445 Elf_Byte st_info; /* type / binding attrs */ 446 Elf_Byte st_other; /* unused */ 447 Elf32_Half st_shndx; /* section index of symbol */ 448 } Elf32_Sym; 449 450 typedef struct { 451 Elf64_Word st_name; /* Symbol name (.strtab index) */ 452 Elf_Byte st_info; /* type / binding attrs */ 453 Elf_Byte st_other; /* unused */ 454 Elf64_Half st_shndx; /* section index of symbol */ 455 Elf64_Addr st_value; /* value of symbol */ 456 Elf64_Xword st_size; /* size of symbol */ 457 } Elf64_Sym; 458 459 /* Symbol Table index of the undefined symbol */ 460 #define ELF_SYM_UNDEFINED 0 461 462 #define STN_UNDEF 0 /* undefined index */ 463 464 /* st_info: Symbol Bindings */ 465 #define STB_LOCAL 0 /* local symbol */ 466 #define STB_GLOBAL 1 /* global symbol */ 467 #define STB_WEAK 2 /* weakly defined global symbol */ 468 #define STB_NUM 3 469 470 #define STB_LOOS 10 /* Operating system specific range */ 471 #define STB_HIOS 12 472 #define STB_LOPROC 13 /* Processor-specific range */ 473 #define STB_HIPROC 15 474 475 /* st_info: Symbol Types */ 476 #define STT_NOTYPE 0 /* Type not specified */ 477 #define STT_OBJECT 1 /* Associated with a data object */ 478 #define STT_FUNC 2 /* Associated with a function */ 479 #define STT_SECTION 3 /* Associated with a section */ 480 #define STT_FILE 4 /* Associated with a file name */ 481 #define STT_COMMON 5 /* Uninitialised common block */ 482 #define STT_TLS 6 /* Thread local data object */ 483 #define STT_NUM 7 484 485 #define STT_LOOS 10 /* Operating system specific range */ 486 #define STT_HIOS 12 487 #define STT_LOPROC 13 /* Processor-specific range */ 488 #define STT_HIPROC 15 489 490 /* st_other: Visibility Types */ 491 #define STV_DEFAULT 0 /* use binding type */ 492 #define STV_INTERNAL 1 /* not referenced from outside */ 493 #define STV_HIDDEN 2 /* not visible, may be used via ptr */ 494 #define STV_PROTECTED 3 /* visible, not preemptible */ 495 #define STV_EXPORTED 4 496 #define STV_SINGLETON 5 497 #define STV_ELIMINATE 6 498 499 /* st_info/st_other utility macros */ 500 #define ELF_ST_BIND(info) ((uint32_t)(info) >> 4) 501 #define ELF_ST_TYPE(info) ((uint32_t)(info) & 0xf) 502 #define ELF_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | \ 503 ((type) & 0xf))) 504 #define ELF_ST_VISIBILITY(other) ((uint32_t)(other) & 3) 505 506 /* 507 * Special section indexes 508 */ 509 #define SHN_UNDEF 0 /* Undefined section */ 510 511 #define SHN_LORESERVE 0xff00 /* Reserved range */ 512 #define SHN_ABS 0xfff1 /* Absolute symbols */ 513 #define SHN_COMMON 0xfff2 /* Common symbols */ 514 #define SHN_XINDEX 0xffff /* Escape -- index stored elsewhere */ 515 #define SHN_HIRESERVE 0xffff 516 517 #define SHN_LOPROC 0xff00 /* Processor-specific range */ 518 #define SHN_HIPROC 0xff1f 519 #define SHN_LOOS 0xff20 /* Operating system specific range */ 520 #define SHN_HIOS 0xff3f 521 522 #define SHN_MIPS_ACOMMON 0xff00 523 #define SHN_MIPS_TEXT 0xff01 524 #define SHN_MIPS_DATA 0xff02 525 #define SHN_MIPS_SCOMMON 0xff03 526 527 /* 528 * Relocation Entries 529 */ 530 typedef struct { 531 Elf32_Word r_offset; /* where to do it */ 532 Elf32_Word r_info; /* index & type of relocation */ 533 } Elf32_Rel; 534 535 typedef struct { 536 Elf32_Word r_offset; /* where to do it */ 537 Elf32_Word r_info; /* index & type of relocation */ 538 Elf32_Sword r_addend; /* adjustment value */ 539 } Elf32_Rela; 540 541 /* r_info utility macros */ 542 #define ELF32_R_SYM(info) ((info) >> 8) 543 #define ELF32_R_TYPE(info) ((info) & 0xff) 544 #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) 545 546 typedef struct { 547 Elf64_Addr r_offset; /* where to do it */ 548 Elf64_Xword r_info; /* index & type of relocation */ 549 } Elf64_Rel; 550 551 typedef struct { 552 Elf64_Addr r_offset; /* where to do it */ 553 Elf64_Xword r_info; /* index & type of relocation */ 554 Elf64_Sxword r_addend; /* adjustment value */ 555 } Elf64_Rela; 556 557 /* r_info utility macros */ 558 #define ELF64_R_SYM(info) ((info) >> 32) 559 #define ELF64_R_TYPE(info) ((info) & 0xffffffff) 560 #define ELF64_R_INFO(sym,type) (((sym) << 32) + (type)) 561 562 /* 563 * Move entries 564 */ 565 typedef struct { 566 Elf32_Lword m_value; /* symbol value */ 567 Elf32_Word m_info; /* size + index */ 568 Elf32_Word m_poffset; /* symbol offset */ 569 Elf32_Half m_repeat; /* repeat count */ 570 Elf32_Half m_stride; /* stride info */ 571 } Elf32_Move; 572 573 #define ELF32_M_SYM(info) ((info) >> 8) 574 #define ELF32_M_SIZE(info) (info) & 0xff) 575 #define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size)) 576 577 typedef struct { 578 Elf64_Lword m_value; /* symbol value */ 579 Elf64_Xword m_info; /* size + index */ 580 Elf64_Xword m_poffset; /* symbol offset */ 581 Elf64_Word m_repeat; /* repeat count */ 582 Elf64_Word m_stride; /* stride info */ 583 } Elf64_Move; 584 585 #define ELF64_M_SYM(info) ((info) >> 8) 586 #define ELF64_M_SIZE(info) (info) & 0xff) 587 #define ELF64_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size)) 588 589 /* 590 * Hardware/software capabilities entry 591 */ 592 typedef struct { 593 Elf32_Word c_tag; /* entry tag value */ 594 union { 595 Elf32_Addr c_ptr; 596 Elf32_Word c_val; 597 } c_un; 598 } Elf32_Cap; 599 600 typedef struct { 601 Elf64_Xword c_tag; /* entry tag value */ 602 union { 603 Elf64_Addr c_ptr; 604 Elf64_Xword c_val; 605 } c_un; 606 } Elf64_Cap; 607 608 /* 609 * Dynamic Section structure array 610 */ 611 typedef struct { 612 Elf32_Word d_tag; /* entry tag value */ 613 union { 614 Elf32_Addr d_ptr; 615 Elf32_Word d_val; 616 } d_un; 617 } Elf32_Dyn; 618 619 typedef struct { 620 Elf64_Xword d_tag; /* entry tag value */ 621 union { 622 Elf64_Addr d_ptr; 623 Elf64_Xword d_val; 624 } d_un; 625 } Elf64_Dyn; 626 627 /* d_tag */ 628 #define DT_NULL 0 /* Marks end of dynamic array */ 629 #define DT_NEEDED 1 /* Name of needed library (DT_STRTAB offset) */ 630 #define DT_PLTRELSZ 2 /* Size, in bytes, of relocations in PLT */ 631 #define DT_PLTGOT 3 /* Address of PLT and/or GOT */ 632 #define DT_HASH 4 /* Address of symbol hash table */ 633 #define DT_STRTAB 5 /* Address of string table */ 634 #define DT_SYMTAB 6 /* Address of symbol table */ 635 #define DT_RELA 7 /* Address of Rela relocation table */ 636 #define DT_RELASZ 8 /* Size, in bytes, of DT_RELA table */ 637 #define DT_RELAENT 9 /* Size, in bytes, of one DT_RELA entry */ 638 #define DT_STRSZ 10 /* Size, in bytes, of DT_STRTAB table */ 639 #define DT_SYMENT 11 /* Size, in bytes, of one DT_SYMTAB entry */ 640 #define DT_INIT 12 /* Address of initialization function */ 641 #define DT_FINI 13 /* Address of termination function */ 642 #define DT_SONAME 14 /* Shared object name (DT_STRTAB offset) */ 643 #define DT_RPATH 15 /* Library search path (DT_STRTAB offset) */ 644 #define DT_SYMBOLIC 16 /* Start symbol search within local object */ 645 #define DT_REL 17 /* Address of Rel relocation table */ 646 #define DT_RELSZ 18 /* Size, in bytes, of DT_REL table */ 647 #define DT_RELENT 19 /* Size, in bytes, of one DT_REL entry */ 648 #define DT_PLTREL 20 /* Type of PLT relocation entries */ 649 #define DT_DEBUG 21 /* Used for debugging; unspecified */ 650 #define DT_TEXTREL 22 /* Relocations might modify non-writable seg */ 651 #define DT_JMPREL 23 /* Address of relocations associated with PLT */ 652 #define DT_BIND_NOW 24 /* Process all relocations at load-time */ 653 #define DT_INIT_ARRAY 25 /* Address of initialization function array */ 654 #define DT_FINI_ARRAY 26 /* Size, in bytes, of DT_INIT_ARRAY array */ 655 #define DT_INIT_ARRAYSZ 27 /* Address of termination function array */ 656 #define DT_FINI_ARRAYSZ 28 /* Size, in bytes, of DT_FINI_ARRAY array*/ 657 #define DT_NUM 29 658 659 #define DT_LOOS 0x60000000 /* Operating system specific range */ 660 #define DT_VERSYM 0x6ffffff0 /* Symbol versions */ 661 #define DT_FLAGS_1 0x6ffffffb /* ELF dynamic flags */ 662 #define DT_VERDEF 0x6ffffffc /* Versions defined by file */ 663 #define DT_VERDEFNUM 0x6ffffffd /* Number of versions defined by file */ 664 #define DT_VERNEED 0x6ffffffe /* Versions needed by file */ 665 #define DT_VERNEEDNUM 0x6fffffff /* Number of versions needed by file */ 666 #define DT_HIOS 0x6fffffff 667 #define DT_LOPROC 0x70000000 /* Processor-specific range */ 668 #define DT_HIPROC 0x7fffffff 669 670 /* Flag values for DT_FLAGS_1 (incomplete) */ 671 #define DF_1_BIND_NOW 0x00000001 /* Same as DF_BIND_NOW */ 672 #define DF_1_NODELETE 0x00000008 /* Set the RTLD_NODELETE for object */ 673 #define DF_1_INITFIRST 0x00000020 /* Object's init/fini take priority */ 674 #define DF_1_NOOPEN 0x00000040 /* Do not allow loading on dlopen() */ 675 676 /* 677 * Auxiliary Vectors 678 */ 679 typedef struct { 680 Elf32_Word a_type; /* 32-bit id */ 681 Elf32_Word a_v; /* 32-bit id */ 682 } Aux32Info; 683 684 typedef struct { 685 Elf64_Word a_type; /* 32-bit id */ 686 Elf64_Xword a_v; /* 64-bit id */ 687 } Aux64Info; 688 689 /* a_type */ 690 #define AT_NULL 0 /* Marks end of array */ 691 #define AT_IGNORE 1 /* No meaning, a_un is undefined */ 692 #define AT_EXECFD 2 /* Open file descriptor of object file */ 693 #define AT_PHDR 3 /* &phdr[0] */ 694 #define AT_PHENT 4 /* sizeof(phdr[0]) */ 695 #define AT_PHNUM 5 /* # phdr entries */ 696 #define AT_PAGESZ 6 /* PAGESIZE */ 697 #define AT_BASE 7 /* Interpreter base addr */ 698 #define AT_FLAGS 8 /* Processor flags */ 699 #define AT_ENTRY 9 /* Entry address of executable */ 700 #define AT_DCACHEBSIZE 10 /* Data cache block size */ 701 #define AT_ICACHEBSIZE 11 /* Instruction cache block size */ 702 #define AT_UCACHEBSIZE 12 /* Unified cache block size */ 703 704 /* Vendor specific */ 705 #define AT_MIPS_NOTELF 10 /* XXX a_val != 0 -> MIPS XCOFF executable */ 706 707 #define AT_EUID 2000 /* euid (solaris compatible numbers) */ 708 #define AT_RUID 2001 /* ruid (solaris compatible numbers) */ 709 #define AT_EGID 2002 /* egid (solaris compatible numbers) */ 710 #define AT_RGID 2003 /* rgid (solaris compatible numbers) */ 711 712 /* Solaris kernel specific */ 713 #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */ 714 #define AT_SUN_LDSHDR 2005 /* dynamic linker's section header */ 715 #define AT_SUN_LDNAME 2006 /* dynamic linker's name */ 716 #define AT_SUN_LPGSIZE 2007 /* large pagesize */ 717 718 /* Other information */ 719 #define AT_SUN_PLATFORM 2008 /* sysinfo(SI_PLATFORM) */ 720 #define AT_SUN_HWCAP 2009 /* process hardware capabilities */ 721 #define AT_SUN_IFLUSH 2010 /* do we need to flush the instruction cache? */ 722 #define AT_SUN_CPU 2011 /* CPU name */ 723 /* ibcs2 emulation band aid */ 724 #define AT_SUN_EMUL_ENTRY 2012 /* coff entry point */ 725 #define AT_SUN_EMUL_EXECFD 2013 /* coff file descriptor */ 726 /* Executable's fully resolved name */ 727 #define AT_SUN_EXECNAME 2014 728 729 /* 730 * Note Headers 731 */ 732 typedef struct { 733 Elf32_Word n_namesz; 734 Elf32_Word n_descsz; 735 Elf32_Word n_type; 736 } Elf32_Nhdr; 737 738 typedef struct { 739 Elf64_Word n_namesz; 740 Elf64_Word n_descsz; 741 Elf64_Word n_type; 742 } Elf64_Nhdr; 743 744 #define ELF_NOTE_TYPE_ABI_TAG 1 745 746 /* GNU-specific note name and description sizes */ 747 #define ELF_NOTE_ABI_NAMESZ 4 748 #define ELF_NOTE_ABI_DESCSZ 16 749 /* GNU-specific note name */ 750 #define ELF_NOTE_ABI_NAME "GNU\0" 751 752 /* GNU-specific OS/version value stuff */ 753 #define ELF_NOTE_ABI_OS_LINUX 0 754 #define ELF_NOTE_ABI_OS_HURD 1 755 #define ELF_NOTE_ABI_OS_SOLARIS 2 756 757 /* NetBSD-specific note type: Emulation name. desc is emul name string. */ 758 #define ELF_NOTE_TYPE_NETBSD_TAG 1 759 /* NetBSD-specific note name and description sizes */ 760 #define ELF_NOTE_NETBSD_NAMESZ 7 761 #define ELF_NOTE_NETBSD_DESCSZ 4 762 /* NetBSD-specific note name */ 763 #define ELF_NOTE_NETBSD_NAME "NetBSD\0\0" 764 765 /* NetBSD-specific note type: Checksum. There should be 1 NOTE per PT_LOAD 766 section. desc is a tuple of <phnum>(16),<chk-type>(16),<chk-value>. */ 767 #define ELF_NOTE_TYPE_CHECKSUM_TAG 2 768 #define ELF_NOTE_CHECKSUM_CRC32 1 769 #define ELF_NOTE_CHECKSUM_MD5 2 770 #define ELF_NOTE_CHECKSUM_SHA1 3 771 #define ELF_NOTE_CHECKSUM_SHA256 4 772 773 /* NetBSD-specific note type: PaX. There should be 1 NOTE per executable. 774 section. desc is a 32 bit bitmask */ 775 #define ELF_NOTE_TYPE_PAX_TAG 3 776 #define ELF_NOTE_PAX_MPROTECT 0x01 /* Force enable Mprotect */ 777 #define ELF_NOTE_PAX_NOMPROTECT 0x02 /* Force disable Mprotect */ 778 #define ELF_NOTE_PAX_GUARD 0x04 /* Force enable Segvguard */ 779 #define ELF_NOTE_PAX_NOGUARD 0x08 /* Force disable Servguard */ 780 #define ELF_NOTE_PAX_ASLR 0x10 /* Force enable ASLR */ 781 #define ELF_NOTE_PAX_NOASLR 0x20 /* Force disable ASLR */ 782 #define ELF_NOTE_PAX_NAMESZ 4 783 #define ELF_NOTE_PAX_NAME "PaX\0" 784 #define ELF_NOTE_PAX_DESCSZ 4 785 786 /* 787 * NetBSD-specific core file information. 788 * 789 * NetBSD ELF core files use notes to provide information about 790 * the process's state. The note name is "NetBSD-CORE" for 791 * information that is global to the process, and "NetBSD-CORE@nn", 792 * where "nn" is the lwpid of the LWP that the information belongs 793 * to (such as register state). 794 * 795 * We use the following note identifiers: 796 * 797 * ELF_NOTE_NETBSD_CORE_PROCINFO 798 * Note is a "netbsd_elfcore_procinfo" structure. 799 * 800 * We also use ptrace(2) request numbers (the ones that exist in 801 * machine-dependent space) to identify register info notes. The 802 * info in such notes is in the same format that ptrace(2) would 803 * export that information. 804 * 805 * Please try to keep the members of this structure nicely aligned, 806 * and if you add elements, add them to the end and bump the version. 807 */ 808 809 #define ELF_NOTE_NETBSD_CORE_NAME "NetBSD-CORE" 810 811 #define ELF_NOTE_NETBSD_CORE_PROCINFO 1 812 813 #define NETBSD_ELFCORE_PROCINFO_VERSION 1 814 815 struct netbsd_elfcore_procinfo { 816 /* Version 1 fields start here. */ 817 uint32_t cpi_version; /* netbsd_elfcore_procinfo version */ 818 uint32_t cpi_cpisize; /* sizeof(netbsd_elfcore_procinfo) */ 819 uint32_t cpi_signo; /* killing signal */ 820 uint32_t cpi_sigcode; /* signal code */ 821 uint32_t cpi_sigpend[4]; /* pending signals */ 822 uint32_t cpi_sigmask[4]; /* blocked signals */ 823 uint32_t cpi_sigignore[4];/* blocked signals */ 824 uint32_t cpi_sigcatch[4];/* blocked signals */ 825 int32_t cpi_pid; /* process ID */ 826 int32_t cpi_ppid; /* parent process ID */ 827 int32_t cpi_pgrp; /* process group ID */ 828 int32_t cpi_sid; /* session ID */ 829 uint32_t cpi_ruid; /* real user ID */ 830 uint32_t cpi_euid; /* effective user ID */ 831 uint32_t cpi_svuid; /* saved user ID */ 832 uint32_t cpi_rgid; /* real group ID */ 833 uint32_t cpi_egid; /* effective group ID */ 834 uint32_t cpi_svgid; /* saved group ID */ 835 uint32_t cpi_nlwps; /* number of LWPs */ 836 int8_t cpi_name[32]; /* copy of p->p_comm */ 837 /* Add version 2 fields below here. */ 838 int32_t cpi_siglwp; /* LWP target of killing signal */ 839 }; 840 841 #if !defined(ELFSIZE) && defined(ARCH_ELFSIZE) 842 #define ELFSIZE ARCH_ELFSIZE 843 #endif 844 845 #if defined(ELFSIZE) 846 #define CONCAT(x,y) __CONCAT(x,y) 847 #define ELFNAME(x) CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x))) 848 #define ELFNAME2(x,y) CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y)))) 849 #define ELFNAMEEND(x) CONCAT(x,CONCAT(_elf,ELFSIZE)) 850 #define ELFDEFNNAME(x) CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x))) 851 #endif 852 853 #if defined(ELFSIZE) && (ELFSIZE == 32) 854 #define Elf_Ehdr Elf32_Ehdr 855 #define Elf_Phdr Elf32_Phdr 856 #define Elf_Shdr Elf32_Shdr 857 #define Elf_Sym Elf32_Sym 858 #define Elf_Rel Elf32_Rel 859 #define Elf_Rela Elf32_Rela 860 #define Elf_Dyn Elf32_Dyn 861 #define Elf_Word Elf32_Word 862 #define Elf_Sword Elf32_Sword 863 #define Elf_Half Elf32_Half 864 #define Elf_Addr Elf32_Addr 865 #define Elf_Off Elf32_Off 866 #define Elf_SOff Elf32_SOff 867 #define Elf_Nhdr Elf32_Nhdr 868 869 #define ELF_R_SYM ELF32_R_SYM 870 #define ELF_R_TYPE ELF32_R_TYPE 871 #define ELFCLASS ELFCLASS32 872 873 #define AuxInfo Aux32Info 874 #elif defined(ELFSIZE) && (ELFSIZE == 64) 875 #define Elf_Ehdr Elf64_Ehdr 876 #define Elf_Phdr Elf64_Phdr 877 #define Elf_Shdr Elf64_Shdr 878 #define Elf_Sym Elf64_Sym 879 #define Elf_Rel Elf64_Rel 880 #define Elf_Rela Elf64_Rela 881 #define Elf_Dyn Elf64_Dyn 882 #define Elf_Word Elf64_Word 883 #define Elf_Sword Elf64_Sword 884 #define Elf_Half Elf64_Half 885 #define Elf_Addr Elf64_Addr 886 #define Elf_Off Elf64_Off 887 #define Elf_SOff Elf64_SOff 888 #define Elf_Nhdr Elf64_Nhdr 889 890 #define ELF_R_SYM ELF64_R_SYM 891 #define ELF_R_TYPE ELF64_R_TYPE 892 #define ELFCLASS ELFCLASS64 893 894 #define AuxInfo Aux64Info 895 #endif 896 897 #ifndef Elf_Symindx 898 #define Elf_Symindx uint32_t 899 #endif 900 901 #define ELF32_ST_BIND(info) ELF_ST_BIND(info) 902 #define ELF32_ST_TYPE(info) ELF_ST_TYPE(info) 903 #define ELF32_ST_INFO(bind,type) ELF_ST_INFO(bind,type) 904 #define ELF32_ST_VISIBILITY(other) ELF_ST_VISIBILITY(other) 905 906 #define ELF64_ST_BIND(info) ELF_ST_BIND(info) 907 #define ELF64_ST_TYPE(info) ELF_ST_TYPE(info) 908 #define ELF64_ST_INFO(bind,type) ELF_ST_INFO(bind,type) 909 #define ELF64_ST_VISIBILITY(other) ELF_ST_VISIBILITY(other) 910 911 typedef struct { 912 Elf32_Half si_boundto; /* direct bindings - symbol bound to */ 913 Elf32_Half si_flags; /* per symbol flags */ 914 } Elf32_Syminfo; 915 916 typedef struct { 917 Elf64_Word si_boundto; /* direct bindings - symbol bound to */ 918 Elf64_Word si_flags; /* per symbol flags */ 919 } Elf64_Syminfo; 920 921 #define SYMINFO_FLG_DIRECT 0x0001 /* symbol ref has direct association 922 to object containing definition */ 923 #define SYMINFO_FLG_PASSTHRU 0x0002 /* ignored - see SYMINFO_FLG_FILTER */ 924 #define SYMINFO_FLG_COPY 0x0004 /* symbol is a copy-reloc */ 925 #define SYMINFO_FLG_LAZYLOAD 0x0008 /* object containing defn should be 926 lazily-loaded */ 927 #define SYMINFO_FLG_DIRECTBIND 0x0010 /* ref should be bound directly to 928 object containing definition */ 929 #define SYMINFO_FLG_NOEXTDIRECT 0x0020 /* don't let an external reference 930 directly bind to this symbol */ 931 #define SYMINFO_FLG_FILTER 0x0002 /* symbol ref is associated to a */ 932 #define SYMINFO_FLG_AUXILIARY 0x0040 /* standard or auxiliary filter */ 933 934 #define SYMINFO_BT_SELF 0xffff /* symbol bound to self */ 935 #define SYMINFO_BT_PARENT 0xfffe /* symbol bound to parent */ 936 #define SYMINFO_BT_NONE 0xfffd /* no special symbol binding */ 937 #define SYMINFO_BT_EXTERN 0xfffc /* symbol defined as external */ 938 #define SYMINFO_BT_LOWRESERVE 0xff00 /* beginning of reserved entries */ 939 940 #define SYMINFO_NONE 0 /* Syminfo version */ 941 #define SYMINFO_CURRENT 1 942 #define SYMINFO_NUM 2 943 944 /* 945 * These constants are used for Elf32_Verdef struct's version number. 946 */ 947 #define VER_DEF_NONE 0 948 #define VER_DEF_CURRENT 1 949 950 /* 951 * These constants are used for Elf32_Verdef struct's vd_flags. 952 */ 953 #define VER_FLG_BASE 0x1 954 #define VER_FLG_WEAK 0x2 955 956 /* 957 * These are used in an Elf32_Versym field. 958 */ 959 #define VER_NDX_LOCAL 0 960 #define VER_NDX_GLOBAL 1 961 962 /* 963 * These constants are used for Elf32_Verneed struct's version number. 964 */ 965 #define VER_NEED_NONE 0 966 #define VER_NEED_CURRENT 1 967 968 /* 969 * GNU Extension hidding symb 970 */ 971 #define VERSYM_HIDDEN 0x8000 972 #define VERSYM_VERSION 0x7fff 973 974 #define ELF_VER_CHR '@' 975 976 /* 977 * These are current size independent. 978 */ 979 980 typedef struct { 981 Elf32_Half vd_version; /* version number of structure */ 982 Elf32_Half vd_flags; /* flags (VER_FLG_*) */ 983 Elf32_Half vd_ndx; /* version index */ 984 Elf32_Half vd_cnt; /* number of verdaux entries */ 985 Elf32_Word vd_hash; /* hash of name */ 986 Elf32_Word vd_aux; /* offset to verdaux entries */ 987 Elf32_Word vd_next; /* offset to next verdef */ 988 } Elf32_Verdef; 989 typedef Elf32_Verdef Elf64_Verdef; 990 991 typedef struct { 992 Elf32_Word vda_name; /* string table offset of name */ 993 Elf32_Word vda_next; /* offset to verdaux */ 994 } Elf32_Verdaux; 995 typedef Elf32_Verdaux Elf64_Verdaux; 996 997 typedef struct { 998 Elf32_Half vn_version; /* version number of structure */ 999 Elf32_Half vn_cnt; /* number of vernaux entries */ 1000 Elf32_Word vn_file; /* string table offset of library name*/ 1001 Elf32_Word vn_aux; /* offset to vernaux entries */ 1002 Elf32_Word vn_next; /* offset to next verneed */ 1003 } Elf32_Verneed; 1004 typedef Elf32_Verneed Elf64_Verneed; 1005 1006 typedef struct { 1007 Elf32_Word vna_hash; /* Hash of dependency name */ 1008 Elf32_Half vna_flags; /* flags (VER_FLG_*) */ 1009 Elf32_Half vna_other; /* unused */ 1010 Elf32_Word vna_name; /* string table offset to version name*/ 1011 Elf32_Word vna_next; /* offset to next vernaux */ 1012 } Elf32_Vernaux; 1013 typedef Elf32_Vernaux Elf64_Vernaux; 1014 1015 typedef struct { 1016 Elf32_Half vs_vers; 1017 } Elf32_Versym; 1018 typedef Elf32_Versym Elf64_Versym; 1019 1020 #ifdef _KERNEL 1021 1022 #define ELF_AUX_ENTRIES 14 /* Max size of aux array passed to loader */ 1023 #define ELF32_NO_ADDR (~(Elf32_Addr)0) /* Indicates addr. not yet filled in */ 1024 #define ELF32_LINK_ADDR ((Elf32_Addr)-2) /* advises to use link address */ 1025 #define ELF64_NO_ADDR (~(Elf64_Addr)0) /* Indicates addr. not yet filled in */ 1026 #define ELF64_LINK_ADDR ((Elf64_Addr)-2) /* advises to use link address */ 1027 1028 #if defined(ELFSIZE) && (ELFSIZE == 64) 1029 #define ELF_NO_ADDR ELF64_NO_ADDR 1030 #define ELF_LINK_ADDR ELF64_LINK_ADDR 1031 #elif defined(ELFSIZE) && (ELFSIZE == 32) 1032 #define ELF_NO_ADDR ELF32_NO_ADDR 1033 #define ELF_LINK_ADDR ELF32_LINK_ADDR 1034 #endif 1035 1036 #ifndef ELF32_EHDR_FLAGS_OK 1037 #define ELF32_EHDR_FLAGS_OK(eh) 1 1038 #endif 1039 1040 #ifndef ELF64_EHDR_FLAGS_OK 1041 #define ELF64_EHDR_FLAGS_OK(eh) 1 1042 #endif 1043 1044 #if defined(ELFSIZE) && (ELFSIZE == 64) 1045 #define ELF_EHDR_FLAGS_OK(eh) ELF64_EHDR_FLAGS_OK(eh) 1046 #else 1047 #define ELF_EHDR_FLAGS_OK(eh) ELF32_EHDR_FLAGS_OK(eh) 1048 #endif 1049 1050 #if defined(ELFSIZE) 1051 struct elf_args { 1052 Elf_Addr arg_entry; /* program entry point */ 1053 Elf_Addr arg_interp; /* Interpreter load address */ 1054 Elf_Addr arg_phaddr; /* program header address */ 1055 Elf_Addr arg_phentsize; /* Size of program header */ 1056 Elf_Addr arg_phnum; /* Number of program headers */ 1057 }; 1058 #endif 1059 1060 #ifdef _KERNEL_OPT 1061 #include "opt_execfmt.h" 1062 #endif 1063 1064 #ifdef EXEC_ELF32 1065 int exec_elf32_makecmds(struct lwp *, struct exec_package *); 1066 int elf32_copyargs(struct lwp *, struct exec_package *, 1067 struct ps_strings *, char **, void *); 1068 1069 int coredump_elf32(struct lwp *, void *); 1070 int coredump_writenote_elf32(struct proc *, void *, Elf32_Nhdr *, 1071 const char *, void *); 1072 1073 int elf32_check_header(Elf32_Ehdr *, int); 1074 #endif 1075 1076 #ifdef EXEC_ELF64 1077 int exec_elf64_makecmds(struct lwp *, struct exec_package *); 1078 int elf64_copyargs(struct lwp *, struct exec_package *, 1079 struct ps_strings *, char **, void *); 1080 1081 int coredump_elf64(struct lwp *, void *); 1082 int coredump_writenote_elf64(struct proc *, void *, Elf64_Nhdr *, 1083 const char *, void *); 1084 1085 int elf64_check_header(Elf64_Ehdr *, int); 1086 #endif 1087 1088 #endif /* _KERNEL */ 1089 1090 #endif /* !_SYS_EXEC_ELF_H_ */ 1091