1 /* $NetBSD: exec_elf.h,v 1.126 2012/08/05 01:43:59 matt 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 */ 347 348 /* GNU-specific */ 349 #define PT_GNU_EH_FRAME 0x6474e550 /* EH frame segment */ 350 #define PT_GNU_STACK 0x6474e551 /* Indicate executable stack */ 351 #define PT_GNU_RELRO 0x6474e552 /* Make read-only after relocation */ 352 353 #define PT_HIOS 0x6fffffff 354 #define PT_LOPROC 0x70000000 /* Processor-specific range */ 355 #define PT_HIPROC 0x7fffffff 356 357 #define PT_MIPS_REGINFO 0x70000000 358 359 /* p_flags */ 360 #define PF_R 0x4 /* Segment is readable */ 361 #define PF_W 0x2 /* Segment is writable */ 362 #define PF_X 0x1 /* Segment is executable */ 363 364 #define PF_MASKOS 0x0ff00000 /* Operating system specific values */ 365 #define PF_MASKPROC 0xf0000000 /* Processor-specific values */ 366 367 /* Extended program header index. */ 368 #define PN_XNUM 0xffff 369 370 /* 371 * Section Headers 372 */ 373 typedef struct { 374 Elf32_Word sh_name; /* section name (.shstrtab index) */ 375 Elf32_Word sh_type; /* section type */ 376 Elf32_Word sh_flags; /* section flags */ 377 Elf32_Addr sh_addr; /* virtual address */ 378 Elf32_Off sh_offset; /* file offset */ 379 Elf32_Word sh_size; /* section size */ 380 Elf32_Word sh_link; /* link to another */ 381 Elf32_Word sh_info; /* misc info */ 382 Elf32_Word sh_addralign; /* memory alignment */ 383 Elf32_Word sh_entsize; /* table entry size */ 384 } Elf32_Shdr; 385 386 typedef struct { 387 Elf64_Word sh_name; /* section name (.shstrtab index) */ 388 Elf64_Word sh_type; /* section type */ 389 Elf64_Xword sh_flags; /* section flags */ 390 Elf64_Addr sh_addr; /* virtual address */ 391 Elf64_Off sh_offset; /* file offset */ 392 Elf64_Xword sh_size; /* section size */ 393 Elf64_Word sh_link; /* link to another */ 394 Elf64_Word sh_info; /* misc info */ 395 Elf64_Xword sh_addralign; /* memory alignment */ 396 Elf64_Xword sh_entsize; /* table entry size */ 397 } Elf64_Shdr; 398 399 /* sh_type */ 400 #define SHT_NULL 0 /* Section header table entry unused */ 401 #define SHT_PROGBITS 1 /* Program information */ 402 #define SHT_SYMTAB 2 /* Symbol table */ 403 #define SHT_STRTAB 3 /* String table */ 404 #define SHT_RELA 4 /* Relocation information w/ addend */ 405 #define SHT_HASH 5 /* Symbol hash table */ 406 #define SHT_DYNAMIC 6 /* Dynamic linking information */ 407 #define SHT_NOTE 7 /* Auxiliary information */ 408 #define SHT_NOBITS 8 /* No space allocated in file image */ 409 #define SHT_REL 9 /* Relocation information w/o addend */ 410 #define SHT_SHLIB 10 /* Reserved, unspecified semantics */ 411 #define SHT_DYNSYM 11 /* Symbol table for dynamic linker */ 412 #define SHT_INIT_ARRAY 14 /* Initialization function pointers */ 413 #define SHT_FINI_ARRAY 15 /* Termination function pointers */ 414 #define SHT_PREINIT_ARRAY 16 /* Pre-initialization function ptrs */ 415 #define SHT_GROUP 17 /* Section group */ 416 #define SHT_SYMTAB_SHNDX 18 /* Section indexes (see SHN_XINDEX) */ 417 #define SHT_NUM 19 418 419 #define SHT_LOOS 0x60000000 /* Operating system specific range */ 420 #define SHT_GNU_HASH 0x6ffffff6 /* GNU style symbol hash table */ 421 #define SHT_SUNW_move 0x6ffffffa 422 #define SHT_SUNW_syminfo 0x6ffffffc 423 #define SHT_SUNW_verdef 0x6ffffffd /* Versions defined by file */ 424 #define SHT_GNU_verdef SHT_SUNW_verdef 425 #define SHT_SUNW_verneed 0x6ffffffe /* Versions needed by file */ 426 #define SHT_GNU_verneed SHT_SUNW_verneed 427 #define SHT_SUNW_versym 0x6fffffff /* Symbol versions */ 428 #define SHT_GNU_versym SHT_SUNW_versym 429 #define SHT_HIOS 0x6fffffff 430 #define SHT_LOPROC 0x70000000 /* Processor-specific range */ 431 #define SHT_AMD64_UNWIND 0x70000001 /* unwind information */ 432 #define SHT_HIPROC 0x7fffffff 433 #define SHT_LOUSER 0x80000000 /* Application-specific range */ 434 #define SHT_HIUSER 0xffffffff 435 436 /* sh_flags */ 437 #define SHF_WRITE 0x00000001 /* Contains writable data */ 438 #define SHF_ALLOC 0x00000002 /* Occupies memory */ 439 #define SHF_EXECINSTR 0x00000004 /* Contains executable insns */ 440 #define SHF_MERGE 0x00000010 /* Might be merged */ 441 #define SHF_STRINGS 0x00000020 /* Contains nul terminated strings */ 442 #define SHF_INFO_LINK 0x00000040 /* "sh_info" contains SHT index */ 443 #define SHF_LINK_ORDER 0x00000080 /* Preserve order after combining */ 444 #define SHF_OS_NONCONFORMING 0x00000100 /* OS specific handling required */ 445 #define SHF_GROUP 0x00000200 /* Is member of a group */ 446 #define SHF_TLS 0x00000400 /* Holds thread-local data */ 447 #define SHF_MASKOS 0x0ff00000 /* Operating system specific values */ 448 #define SHF_MASKPROC 0xf0000000 /* Processor-specific values */ 449 #define SHF_ORDERED 0x40000000 /* Ordering requirement (Solaris) */ 450 #define SHF_EXCLUDE 0x80000000 /* Excluded unless unles ref/alloc 451 (Solaris).*/ 452 /* 453 * Symbol Table 454 */ 455 typedef struct { 456 Elf32_Word st_name; /* Symbol name (.strtab index) */ 457 Elf32_Word st_value; /* value of symbol */ 458 Elf32_Word st_size; /* size of symbol */ 459 Elf_Byte st_info; /* type / binding attrs */ 460 Elf_Byte st_other; /* unused */ 461 Elf32_Half st_shndx; /* section index of symbol */ 462 } Elf32_Sym; 463 464 typedef struct { 465 Elf64_Word st_name; /* Symbol name (.strtab index) */ 466 Elf_Byte st_info; /* type / binding attrs */ 467 Elf_Byte st_other; /* unused */ 468 Elf64_Half st_shndx; /* section index of symbol */ 469 Elf64_Addr st_value; /* value of symbol */ 470 Elf64_Xword st_size; /* size of symbol */ 471 } Elf64_Sym; 472 473 /* Symbol Table index of the undefined symbol */ 474 #define ELF_SYM_UNDEFINED 0 475 476 #define STN_UNDEF 0 /* undefined index */ 477 478 /* st_info: Symbol Bindings */ 479 #define STB_LOCAL 0 /* local symbol */ 480 #define STB_GLOBAL 1 /* global symbol */ 481 #define STB_WEAK 2 /* weakly defined global symbol */ 482 #define STB_NUM 3 483 484 #define STB_LOOS 10 /* Operating system specific range */ 485 #define STB_HIOS 12 486 #define STB_LOPROC 13 /* Processor-specific range */ 487 #define STB_HIPROC 15 488 489 /* st_info: Symbol Types */ 490 #define STT_NOTYPE 0 /* Type not specified */ 491 #define STT_OBJECT 1 /* Associated with a data object */ 492 #define STT_FUNC 2 /* Associated with a function */ 493 #define STT_SECTION 3 /* Associated with a section */ 494 #define STT_FILE 4 /* Associated with a file name */ 495 #define STT_COMMON 5 /* Uninitialised common block */ 496 #define STT_TLS 6 /* Thread local data object */ 497 #define STT_NUM 7 498 499 #define STT_LOOS 10 /* Operating system specific range */ 500 #define STT_HIOS 12 501 #define STT_LOPROC 13 /* Processor-specific range */ 502 #define STT_HIPROC 15 503 504 /* st_other: Visibility Types */ 505 #define STV_DEFAULT 0 /* use binding type */ 506 #define STV_INTERNAL 1 /* not referenced from outside */ 507 #define STV_HIDDEN 2 /* not visible, may be used via ptr */ 508 #define STV_PROTECTED 3 /* visible, not preemptible */ 509 #define STV_EXPORTED 4 510 #define STV_SINGLETON 5 511 #define STV_ELIMINATE 6 512 513 /* st_info/st_other utility macros */ 514 #define ELF_ST_BIND(info) ((uint32_t)(info) >> 4) 515 #define ELF_ST_TYPE(info) ((uint32_t)(info) & 0xf) 516 #define ELF_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | \ 517 ((type) & 0xf))) 518 #define ELF_ST_VISIBILITY(other) ((uint32_t)(other) & 3) 519 520 /* 521 * Special section indexes 522 */ 523 #define SHN_UNDEF 0 /* Undefined section */ 524 525 #define SHN_LORESERVE 0xff00 /* Reserved range */ 526 #define SHN_ABS 0xfff1 /* Absolute symbols */ 527 #define SHN_COMMON 0xfff2 /* Common symbols */ 528 #define SHN_XINDEX 0xffff /* Escape -- index stored elsewhere */ 529 #define SHN_HIRESERVE 0xffff 530 531 #define SHN_LOPROC 0xff00 /* Processor-specific range */ 532 #define SHN_HIPROC 0xff1f 533 #define SHN_LOOS 0xff20 /* Operating system specific range */ 534 #define SHN_HIOS 0xff3f 535 536 #define SHN_MIPS_ACOMMON 0xff00 537 #define SHN_MIPS_TEXT 0xff01 538 #define SHN_MIPS_DATA 0xff02 539 #define SHN_MIPS_SCOMMON 0xff03 540 541 /* 542 * Relocation Entries 543 */ 544 typedef struct { 545 Elf32_Word r_offset; /* where to do it */ 546 Elf32_Word r_info; /* index & type of relocation */ 547 } Elf32_Rel; 548 549 typedef struct { 550 Elf32_Word r_offset; /* where to do it */ 551 Elf32_Word r_info; /* index & type of relocation */ 552 Elf32_Sword r_addend; /* adjustment value */ 553 } Elf32_Rela; 554 555 /* r_info utility macros */ 556 #define ELF32_R_SYM(info) ((info) >> 8) 557 #define ELF32_R_TYPE(info) ((info) & 0xff) 558 #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) 559 560 typedef struct { 561 Elf64_Addr r_offset; /* where to do it */ 562 Elf64_Xword r_info; /* index & type of relocation */ 563 } Elf64_Rel; 564 565 typedef struct { 566 Elf64_Addr r_offset; /* where to do it */ 567 Elf64_Xword r_info; /* index & type of relocation */ 568 Elf64_Sxword r_addend; /* adjustment value */ 569 } Elf64_Rela; 570 571 /* r_info utility macros */ 572 #define ELF64_R_SYM(info) ((info) >> 32) 573 #define ELF64_R_TYPE(info) ((info) & 0xffffffff) 574 #define ELF64_R_INFO(sym,type) (((sym) << 32) + (type)) 575 576 /* 577 * Move entries 578 */ 579 typedef struct { 580 Elf32_Lword m_value; /* symbol value */ 581 Elf32_Word m_info; /* size + index */ 582 Elf32_Word m_poffset; /* symbol offset */ 583 Elf32_Half m_repeat; /* repeat count */ 584 Elf32_Half m_stride; /* stride info */ 585 } Elf32_Move; 586 587 #define ELF32_M_SYM(info) ((info) >> 8) 588 #define ELF32_M_SIZE(info) ((info) & 0xff) 589 #define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size)) 590 591 typedef struct { 592 Elf64_Lword m_value; /* symbol value */ 593 Elf64_Xword m_info; /* size + index */ 594 Elf64_Xword m_poffset; /* symbol offset */ 595 Elf64_Word m_repeat; /* repeat count */ 596 Elf64_Word m_stride; /* stride info */ 597 } Elf64_Move; 598 599 #define ELF64_M_SYM(info) ((info) >> 8) 600 #define ELF64_M_SIZE(info) ((info) & 0xff) 601 #define ELF64_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size)) 602 603 /* 604 * Hardware/software capabilities entry 605 */ 606 typedef struct { 607 Elf32_Word c_tag; /* entry tag value */ 608 union { 609 Elf32_Addr c_ptr; 610 Elf32_Word c_val; 611 } c_un; 612 } Elf32_Cap; 613 614 typedef struct { 615 Elf64_Xword c_tag; /* entry tag value */ 616 union { 617 Elf64_Addr c_ptr; 618 Elf64_Xword c_val; 619 } c_un; 620 } Elf64_Cap; 621 622 /* 623 * Dynamic Section structure array 624 */ 625 typedef struct { 626 Elf32_Word d_tag; /* entry tag value */ 627 union { 628 Elf32_Addr d_ptr; 629 Elf32_Word d_val; 630 } d_un; 631 } Elf32_Dyn; 632 633 typedef struct { 634 Elf64_Xword d_tag; /* entry tag value */ 635 union { 636 Elf64_Addr d_ptr; 637 Elf64_Xword d_val; 638 } d_un; 639 } Elf64_Dyn; 640 641 /* d_tag */ 642 #define DT_NULL 0 /* Marks end of dynamic array */ 643 #define DT_NEEDED 1 /* Name of needed library (DT_STRTAB offset) */ 644 #define DT_PLTRELSZ 2 /* Size, in bytes, of relocations in PLT */ 645 #define DT_PLTGOT 3 /* Address of PLT and/or GOT */ 646 #define DT_HASH 4 /* Address of symbol hash table */ 647 #define DT_STRTAB 5 /* Address of string table */ 648 #define DT_SYMTAB 6 /* Address of symbol table */ 649 #define DT_RELA 7 /* Address of Rela relocation table */ 650 #define DT_RELASZ 8 /* Size, in bytes, of DT_RELA table */ 651 #define DT_RELAENT 9 /* Size, in bytes, of one DT_RELA entry */ 652 #define DT_STRSZ 10 /* Size, in bytes, of DT_STRTAB table */ 653 #define DT_SYMENT 11 /* Size, in bytes, of one DT_SYMTAB entry */ 654 #define DT_INIT 12 /* Address of initialization function */ 655 #define DT_FINI 13 /* Address of termination function */ 656 #define DT_SONAME 14 /* Shared object name (DT_STRTAB offset) */ 657 #define DT_RPATH 15 /* Library search path (DT_STRTAB offset) */ 658 #define DT_SYMBOLIC 16 /* Start symbol search within local object */ 659 #define DT_REL 17 /* Address of Rel relocation table */ 660 #define DT_RELSZ 18 /* Size, in bytes, of DT_REL table */ 661 #define DT_RELENT 19 /* Size, in bytes, of one DT_REL entry */ 662 #define DT_PLTREL 20 /* Type of PLT relocation entries */ 663 #define DT_DEBUG 21 /* Used for debugging; unspecified */ 664 #define DT_TEXTREL 22 /* Relocations might modify non-writable seg */ 665 #define DT_JMPREL 23 /* Address of relocations associated with PLT */ 666 #define DT_BIND_NOW 24 /* Process all relocations at load-time */ 667 #define DT_INIT_ARRAY 25 /* Address of initialization function array */ 668 #define DT_FINI_ARRAY 26 /* Size, in bytes, of DT_INIT_ARRAY array */ 669 #define DT_INIT_ARRAYSZ 27 /* Address of termination function array */ 670 #define DT_FINI_ARRAYSZ 28 /* Size, in bytes, of DT_FINI_ARRAY array*/ 671 #define DT_NUM 29 672 673 #define DT_LOOS 0x60000000 /* Operating system specific range */ 674 #define DT_VERSYM 0x6ffffff0 /* Symbol versions */ 675 #define DT_FLAGS_1 0x6ffffffb /* ELF dynamic flags */ 676 #define DT_VERDEF 0x6ffffffc /* Versions defined by file */ 677 #define DT_VERDEFNUM 0x6ffffffd /* Number of versions defined by file */ 678 #define DT_VERNEED 0x6ffffffe /* Versions needed by file */ 679 #define DT_VERNEEDNUM 0x6fffffff /* Number of versions needed by file */ 680 #define DT_HIOS 0x6fffffff 681 #define DT_LOPROC 0x70000000 /* Processor-specific range */ 682 #define DT_HIPROC 0x7fffffff 683 684 /* Flag values for DT_FLAGS_1 (incomplete) */ 685 #define DF_1_BIND_NOW 0x00000001 /* Same as DF_BIND_NOW */ 686 #define DF_1_NODELETE 0x00000008 /* Set the RTLD_NODELETE for object */ 687 #define DF_1_INITFIRST 0x00000020 /* Object's init/fini take priority */ 688 #define DF_1_NOOPEN 0x00000040 /* Do not allow loading on dlopen() */ 689 690 /* 691 * Auxiliary Vectors 692 */ 693 typedef struct { 694 Elf32_Word a_type; /* 32-bit id */ 695 Elf32_Word a_v; /* 32-bit id */ 696 } Aux32Info; 697 698 typedef struct { 699 Elf64_Word a_type; /* 32-bit id */ 700 Elf64_Xword a_v; /* 64-bit id */ 701 } Aux64Info; 702 703 /* BEGIN android-changed: these constants should come from <linux/auxvec.h>. */ 704 #if 0 705 /* a_type */ 706 #define AT_NULL 0 /* Marks end of array */ 707 #define AT_IGNORE 1 /* No meaning, a_un is undefined */ 708 #define AT_EXECFD 2 /* Open file descriptor of object file */ 709 #define AT_PHDR 3 /* &phdr[0] */ 710 #define AT_PHENT 4 /* sizeof(phdr[0]) */ 711 #define AT_PHNUM 5 /* # phdr entries */ 712 #define AT_PAGESZ 6 /* PAGESIZE */ 713 #define AT_BASE 7 /* Interpreter base addr */ 714 #define AT_FLAGS 8 /* Processor flags */ 715 #define AT_ENTRY 9 /* Entry address of executable */ 716 #define AT_DCACHEBSIZE 10 /* Data cache block size */ 717 #define AT_ICACHEBSIZE 11 /* Instruction cache block size */ 718 #define AT_UCACHEBSIZE 12 /* Unified cache block size */ 719 #define AT_STACKBASE 13 /* Base address of the main thread */ 720 721 /* Vendor specific */ 722 #define AT_MIPS_NOTELF 10 /* XXX a_val != 0 -> MIPS XCOFF executable */ 723 724 #define AT_EUID 2000 /* euid (solaris compatible numbers) */ 725 #define AT_RUID 2001 /* ruid (solaris compatible numbers) */ 726 #define AT_EGID 2002 /* egid (solaris compatible numbers) */ 727 #define AT_RGID 2003 /* rgid (solaris compatible numbers) */ 728 729 /* Solaris kernel specific */ 730 #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */ 731 #define AT_SUN_LDSHDR 2005 /* dynamic linker's section header */ 732 #define AT_SUN_LDNAME 2006 /* dynamic linker's name */ 733 #define AT_SUN_LPGSIZE 2007 /* large pagesize */ 734 735 /* Other information */ 736 #define AT_SUN_PLATFORM 2008 /* sysinfo(SI_PLATFORM) */ 737 #define AT_SUN_HWCAP 2009 /* process hardware capabilities */ 738 #define AT_SUN_IFLUSH 2010 /* do we need to flush the instruction cache? */ 739 #define AT_SUN_CPU 2011 /* CPU name */ 740 /* ibcs2 emulation band aid */ 741 #define AT_SUN_EMUL_ENTRY 2012 /* coff entry point */ 742 #define AT_SUN_EMUL_EXECFD 2013 /* coff file descriptor */ 743 /* Executable's fully resolved name */ 744 #define AT_SUN_EXECNAME 2014 745 #endif 746 /* END android-changed */ 747 748 /* 749 * Note Headers 750 */ 751 typedef struct { 752 Elf32_Word n_namesz; 753 Elf32_Word n_descsz; 754 Elf32_Word n_type; 755 } Elf32_Nhdr; 756 757 typedef struct { 758 Elf64_Word n_namesz; 759 Elf64_Word n_descsz; 760 Elf64_Word n_type; 761 } Elf64_Nhdr; 762 763 #define ELF_NOTE_GNU_NAMESZ 4 764 #define ELF_NOTE_GNU_NAME "GNU\0" 765 766 /* 767 * GNU-specific note type: ABI tag 768 * name: GNU\0 769 * namesz: 4 770 * desc: 771 * word[0]: OS tag 772 * word[1]: major version 773 * word[2]: minor version 774 * word[3]: teeny version 775 * descsz: 16 776 */ 777 /* GNU-specific note name and description sizes */ 778 #define ELF_NOTE_TYPE_ABI_TAG 1 779 #define ELF_NOTE_ABI_NAME ELF_NOTE_GNU_NAME 780 #define ELF_NOTE_ABI_NAMESZ ELF_NOTE_GNU_NAMESZ 781 #define ELF_NOTE_ABI_DESCSZ 16 782 /* GNU-specific OS/version value stuff */ 783 #define ELF_NOTE_ABI_OS_LINUX 0 784 #define ELF_NOTE_ABI_OS_HURD 1 785 #define ELF_NOTE_ABI_OS_SOLARIS 2 786 #define ELF_NOTE_ABI_OS_KFREEBSD 3 787 #define ELF_NOTE_ABI_OS_KNETBSD 4 788 789 /* 790 * GNU-specific note type: Hardware capabilities 791 * name: GNU\0 792 * namesz: 4 793 * desc: 794 * word[0]: Number of entries 795 * word[1]: Bitmask of enabled entries 796 * Followed by a byte id, and a NUL terminated string per entry 797 * descsz: variable 798 */ 799 #define ELF_NOTE_TYPE_GNU_HWCAP 2 800 801 /* 802 * GNU-specific note type: Build ID generated by ld 803 * name: GNU\0 804 * desc: 805 * word[0..4] SHA1 [default] 806 * or 807 * word[0..3] md5 or uuid 808 * descsz: 16 or 20 809 */ 810 #define ELF_NOTE_TYPE_GNU_BUILD_ID 3 811 812 /* SuSE-specific note type: ABI 813 * name: SuSE\0 814 * namesz: 5 815 * desc: 816 * half[0] = MMmm 817 * 818 * M = product major version 819 * m = product minor version 820 * descsz: 2 821 */ 822 #define ELF_NOTE_TYPE_SUSE_TAG 1 823 /* SuSE-specific note name and description sizes */ 824 #define ELF_NOTE_SUSE_NAMESZ 5 825 #define ELF_NOTE_SUSE_DESCSZ 2 826 /* SuSE-specific note name */ 827 #define ELF_NOTE_SUSE_NAME "SuSE\0" 828 829 /* SuSE-specific note type: version 830 * name: SuSE\0\0\0\0 831 * namesz: 8 832 * desc: 833 * word[0] = VVTTMMmm 834 * 835 * V = version of following data 836 * T = product type: [box, sles, nld, whatever] 837 * M = product major version 838 * m = product minor version 839 * descsz: 8 840 */ 841 #define ELF_NOTE_TYPE_SUSE_VERSION_TAG 0x45537553 /* SuSE in LE */ 842 /* SuSE-specific note name and description sizes */ 843 #define ELF_NOTE_SUSE_VERSION_NAMESZ 8 844 #define ELF_NOTE_SUSE_VERSION_DESCSZ 8 845 /* SuSE-specific note name */ 846 #define ELF_NOTE_SUSE_VERSION_NAME "SuSE\0\0\0\0" 847 848 /* NetBSD-specific note type: Emulation name. 849 * name: NetBSD\0\0 850 * namesz: 8 851 * desc: 852 * word[0]: MMmmrrpp00 853 * 854 * M = major version 855 * m = minor version 856 * r = release ["",A-Z,Z[A-Z] but numeric] 857 * p = patchlevel 858 * descsz: 4 859 */ 860 #define ELF_NOTE_TYPE_NETBSD_TAG 1 861 /* NetBSD-specific note name and description sizes */ 862 #define ELF_NOTE_NETBSD_NAMESZ 7 863 #define ELF_NOTE_NETBSD_DESCSZ 4 864 /* NetBSD-specific note name */ 865 #define ELF_NOTE_NETBSD_NAME "NetBSD\0\0" 866 867 /* NetBSD-specific note type: Checksum. 868 * There should be 1 NOTE per PT_LOAD section. 869 * name: ??? 870 * namesz: ??? 871 * desc: 872 * a tuple of <phnum>(16),<chk-type>(16),<chk-value>. 873 * descsz: ??? 874 */ 875 #define ELF_NOTE_TYPE_CHECKSUM_TAG 2 876 #define ELF_NOTE_CHECKSUM_CRC32 1 877 #define ELF_NOTE_CHECKSUM_MD5 2 878 #define ELF_NOTE_CHECKSUM_SHA1 3 879 #define ELF_NOTE_CHECKSUM_SHA256 4 880 881 /* 882 * NetBSD-specific note type: PaX. 883 * There should be 1 NOTE per executable. 884 * name: PaX\0 885 * namesz: 4 886 * desc: 887 * word[0]: capability bitmask 888 * descsz: 4 889 */ 890 #define ELF_NOTE_TYPE_PAX_TAG 3 891 #define ELF_NOTE_PAX_MPROTECT 0x01 /* Force enable Mprotect */ 892 #define ELF_NOTE_PAX_NOMPROTECT 0x02 /* Force disable Mprotect */ 893 #define ELF_NOTE_PAX_GUARD 0x04 /* Force enable Segvguard */ 894 #define ELF_NOTE_PAX_NOGUARD 0x08 /* Force disable Servguard */ 895 #define ELF_NOTE_PAX_ASLR 0x10 /* Force enable ASLR */ 896 #define ELF_NOTE_PAX_NOASLR 0x20 /* Force disable ASLR */ 897 #define ELF_NOTE_PAX_NAMESZ 4 898 #define ELF_NOTE_PAX_NAME "PaX\0" 899 #define ELF_NOTE_PAX_DESCSZ 4 900 901 /* 902 * NetBSD-specific core file information. 903 * 904 * NetBSD ELF core files use notes to provide information about 905 * the process's state. The note name is "NetBSD-CORE" for 906 * information that is global to the process, and "NetBSD-CORE@nn", 907 * where "nn" is the lwpid of the LWP that the information belongs 908 * to (such as register state). 909 * 910 * We use the following note identifiers: 911 * 912 * ELF_NOTE_NETBSD_CORE_PROCINFO 913 * Note is a "netbsd_elfcore_procinfo" structure. 914 * 915 * We also use ptrace(2) request numbers (the ones that exist in 916 * machine-dependent space) to identify register info notes. The 917 * info in such notes is in the same format that ptrace(2) would 918 * export that information. 919 * 920 * Please try to keep the members of this structure nicely aligned, 921 * and if you add elements, add them to the end and bump the version. 922 */ 923 924 #define ELF_NOTE_NETBSD_CORE_NAME "NetBSD-CORE" 925 926 #define ELF_NOTE_NETBSD_CORE_PROCINFO 1 927 928 #define NETBSD_ELFCORE_PROCINFO_VERSION 1 929 930 struct netbsd_elfcore_procinfo { 931 /* Version 1 fields start here. */ 932 uint32_t cpi_version; /* our version */ 933 uint32_t cpi_cpisize; /* sizeof(this struct) */ 934 uint32_t cpi_signo; /* killing signal */ 935 uint32_t cpi_sigcode; /* signal code */ 936 uint32_t cpi_sigpend[4]; /* pending signals */ 937 uint32_t cpi_sigmask[4]; /* blocked signals */ 938 uint32_t cpi_sigignore[4]; /* ignored signals */ 939 uint32_t cpi_sigcatch[4]; /* caught signals */ 940 int32_t cpi_pid; /* process ID */ 941 int32_t cpi_ppid; /* parent process ID */ 942 int32_t cpi_pgrp; /* process group ID */ 943 int32_t cpi_sid; /* session ID */ 944 uint32_t cpi_ruid; /* real user ID */ 945 uint32_t cpi_euid; /* effective user ID */ 946 uint32_t cpi_svuid; /* saved user ID */ 947 uint32_t cpi_rgid; /* real group ID */ 948 uint32_t cpi_egid; /* effective group ID */ 949 uint32_t cpi_svgid; /* saved group ID */ 950 uint32_t cpi_nlwps; /* number of LWPs */ 951 int8_t cpi_name[32]; /* copy of p->p_comm */ 952 /* Add version 2 fields below here. */ 953 int32_t cpi_siglwp; /* LWP target of killing signal */ 954 }; 955 956 #if !defined(ELFSIZE) && defined(ARCH_ELFSIZE) 957 #define ELFSIZE ARCH_ELFSIZE 958 #endif 959 960 #if defined(ELFSIZE) 961 #define CONCAT(x,y) __CONCAT(x,y) 962 #define ELFNAME(x) CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x))) 963 #define ELFNAME2(x,y) CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y)))) 964 #define ELFNAMEEND(x) CONCAT(x,CONCAT(_elf,ELFSIZE)) 965 #define ELFDEFNNAME(x) CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x))) 966 #endif 967 968 #if defined(ELFSIZE) && (ELFSIZE == 32) 969 #define Elf_Ehdr Elf32_Ehdr 970 #define Elf_Phdr Elf32_Phdr 971 #define Elf_Shdr Elf32_Shdr 972 #define Elf_Sym Elf32_Sym 973 #define Elf_Rel Elf32_Rel 974 #define Elf_Rela Elf32_Rela 975 #define Elf_Dyn Elf32_Dyn 976 #define Elf_Word Elf32_Word 977 #define Elf_Sword Elf32_Sword 978 #define Elf_Half Elf32_Half 979 #define Elf_Addr Elf32_Addr 980 #define Elf_Off Elf32_Off 981 #define Elf_SOff Elf32_SOff 982 #define Elf_Nhdr Elf32_Nhdr 983 #define Elf_Verdef Elf32_Verdef 984 #define Elf_Verdaux Elf32_Verdaux 985 #define Elf_Verneed Elf32_Verneed 986 #define Elf_Vernaux Elf32_Vernaux 987 #define Elf_Versym Elf32_Versym 988 989 #define ELF_R_SYM ELF32_R_SYM 990 #define ELF_R_TYPE ELF32_R_TYPE 991 #define ELFCLASS ELFCLASS32 992 993 #define AuxInfo Aux32Info 994 #elif defined(ELFSIZE) && (ELFSIZE == 64) 995 #define Elf_Ehdr Elf64_Ehdr 996 #define Elf_Phdr Elf64_Phdr 997 #define Elf_Shdr Elf64_Shdr 998 #define Elf_Sym Elf64_Sym 999 #define Elf_Rel Elf64_Rel 1000 #define Elf_Rela Elf64_Rela 1001 #define Elf_Dyn Elf64_Dyn 1002 #define Elf_Word Elf64_Word 1003 #define Elf_Sword Elf64_Sword 1004 #define Elf_Half Elf64_Half 1005 #define Elf_Addr Elf64_Addr 1006 #define Elf_Off Elf64_Off 1007 #define Elf_SOff Elf64_SOff 1008 #define Elf_Nhdr Elf64_Nhdr 1009 #define Elf_Verdef Elf64_Verdef 1010 #define Elf_Verdaux Elf64_Verdaux 1011 #define Elf_Verneed Elf64_Verneed 1012 #define Elf_Vernaux Elf64_Vernaux 1013 #define Elf_Versym Elf64_Versym 1014 1015 #define ELF_R_SYM ELF64_R_SYM 1016 #define ELF_R_TYPE ELF64_R_TYPE 1017 #define ELFCLASS ELFCLASS64 1018 1019 #define AuxInfo Aux64Info 1020 #endif 1021 1022 #ifndef Elf_Symindx 1023 #define Elf_Symindx uint32_t 1024 #endif 1025 1026 #define ELF32_ST_BIND(info) ELF_ST_BIND(info) 1027 #define ELF32_ST_TYPE(info) ELF_ST_TYPE(info) 1028 #define ELF32_ST_INFO(bind,type) ELF_ST_INFO(bind,type) 1029 #define ELF32_ST_VISIBILITY(other) ELF_ST_VISIBILITY(other) 1030 1031 #define ELF64_ST_BIND(info) ELF_ST_BIND(info) 1032 #define ELF64_ST_TYPE(info) ELF_ST_TYPE(info) 1033 #define ELF64_ST_INFO(bind,type) ELF_ST_INFO(bind,type) 1034 #define ELF64_ST_VISIBILITY(other) ELF_ST_VISIBILITY(other) 1035 1036 typedef struct { 1037 Elf32_Half si_boundto; /* direct bindings - symbol bound to */ 1038 Elf32_Half si_flags; /* per symbol flags */ 1039 } Elf32_Syminfo; 1040 1041 typedef struct { 1042 Elf64_Word si_boundto; /* direct bindings - symbol bound to */ 1043 Elf64_Word si_flags; /* per symbol flags */ 1044 } Elf64_Syminfo; 1045 1046 #define SYMINFO_FLG_DIRECT 0x0001 /* symbol ref has direct association 1047 to object containing definition */ 1048 #define SYMINFO_FLG_PASSTHRU 0x0002 /* ignored - see SYMINFO_FLG_FILTER */ 1049 #define SYMINFO_FLG_COPY 0x0004 /* symbol is a copy-reloc */ 1050 #define SYMINFO_FLG_LAZYLOAD 0x0008 /* object containing defn should be 1051 lazily-loaded */ 1052 #define SYMINFO_FLG_DIRECTBIND 0x0010 /* ref should be bound directly to 1053 object containing definition */ 1054 #define SYMINFO_FLG_NOEXTDIRECT 0x0020 /* don't let an external reference 1055 directly bind to this symbol */ 1056 #define SYMINFO_FLG_FILTER 0x0002 /* symbol ref is associated to a */ 1057 #define SYMINFO_FLG_AUXILIARY 0x0040 /* standard or auxiliary filter */ 1058 1059 #define SYMINFO_BT_SELF 0xffff /* symbol bound to self */ 1060 #define SYMINFO_BT_PARENT 0xfffe /* symbol bound to parent */ 1061 #define SYMINFO_BT_NONE 0xfffd /* no special symbol binding */ 1062 #define SYMINFO_BT_EXTERN 0xfffc /* symbol defined as external */ 1063 #define SYMINFO_BT_LOWRESERVE 0xff00 /* beginning of reserved entries */ 1064 1065 #define SYMINFO_NONE 0 /* Syminfo version */ 1066 #define SYMINFO_CURRENT 1 1067 #define SYMINFO_NUM 2 1068 1069 /* 1070 * These constants are used for Elf32_Verdef struct's version number. 1071 */ 1072 #define VER_DEF_NONE 0 1073 #define VER_DEF_CURRENT 1 1074 1075 /* 1076 * These constants are used for Elf32_Verdef struct's vd_ndx. 1077 */ 1078 #define VER_DEF_IDX(x) VER_NDX(x) 1079 1080 /* 1081 * These constants are used for Elf32_Verdef struct's vd_flags. 1082 */ 1083 #define VER_FLG_BASE 0x1 1084 #define VER_FLG_WEAK 0x2 1085 1086 /* 1087 * These are used in an Elf32_Versym field. 1088 */ 1089 #define VER_NDX_LOCAL 0 1090 #define VER_NDX_GLOBAL 1 1091 #define VER_NDX_GIVEN 2 1092 1093 /* 1094 * These constants are used for Elf32_Verneed struct's version number. 1095 */ 1096 #define VER_NEED_NONE 0 1097 #define VER_NEED_CURRENT 1 1098 1099 /* 1100 * These constants are used for Elf32_Vernaux struct's vna_other. 1101 */ 1102 #define VER_NEED_HIDDEN VER_NDX_HIDDEN 1103 #define VER_NEED_IDX(x) VER_NDX(x) 1104 1105 /* index */ 1106 #define VER_NDX_HIDDEN 0x8000 1107 #define VER_NDX(x) ((x) & ~VER_NDX_HIDDEN) 1108 1109 /* 1110 * GNU Extension hidding symbol 1111 */ 1112 #define VERSYM_HIDDEN 0x8000 1113 #define VERSYM_VERSION 0x7fff 1114 1115 #define ELF_VER_CHR '@' 1116 1117 /* 1118 * These are current size independent. 1119 */ 1120 1121 typedef struct { 1122 Elf32_Half vd_version; /* version number of structure */ 1123 Elf32_Half vd_flags; /* flags (VER_FLG_*) */ 1124 Elf32_Half vd_ndx; /* version index */ 1125 Elf32_Half vd_cnt; /* number of verdaux entries */ 1126 Elf32_Word vd_hash; /* hash of name */ 1127 Elf32_Word vd_aux; /* offset to verdaux entries */ 1128 Elf32_Word vd_next; /* offset to next verdef */ 1129 } Elf32_Verdef; 1130 typedef Elf32_Verdef Elf64_Verdef; 1131 1132 typedef struct { 1133 Elf32_Word vda_name; /* string table offset of name */ 1134 Elf32_Word vda_next; /* offset to verdaux */ 1135 } Elf32_Verdaux; 1136 typedef Elf32_Verdaux Elf64_Verdaux; 1137 1138 typedef struct { 1139 Elf32_Half vn_version; /* version number of structure */ 1140 Elf32_Half vn_cnt; /* number of vernaux entries */ 1141 Elf32_Word vn_file; /* string table offset of library name*/ 1142 Elf32_Word vn_aux; /* offset to vernaux entries */ 1143 Elf32_Word vn_next; /* offset to next verneed */ 1144 } Elf32_Verneed; 1145 typedef Elf32_Verneed Elf64_Verneed; 1146 1147 typedef struct { 1148 Elf32_Word vna_hash; /* Hash of dependency name */ 1149 Elf32_Half vna_flags; /* flags (VER_FLG_*) */ 1150 Elf32_Half vna_other; /* unused */ 1151 Elf32_Word vna_name; /* string table offset to version name*/ 1152 Elf32_Word vna_next; /* offset to next vernaux */ 1153 } Elf32_Vernaux; 1154 typedef Elf32_Vernaux Elf64_Vernaux; 1155 1156 typedef struct { 1157 Elf32_Half vs_vers; 1158 } Elf32_Versym; 1159 typedef Elf32_Versym Elf64_Versym; 1160 1161 #ifdef _KERNEL 1162 1163 #define ELF_AUX_ENTRIES 15 /* Max size of aux array passed to loader */ 1164 #define ELF32_NO_ADDR (~(Elf32_Addr)0) /* Indicates addr. not yet filled in */ 1165 #define ELF32_LINK_ADDR ((Elf32_Addr)-2) /* advises to use link address */ 1166 #define ELF64_NO_ADDR (~(Elf64_Addr)0) /* Indicates addr. not yet filled in */ 1167 #define ELF64_LINK_ADDR ((Elf64_Addr)-2) /* advises to use link address */ 1168 1169 #if defined(ELFSIZE) && (ELFSIZE == 64) 1170 #define ELF_NO_ADDR ELF64_NO_ADDR 1171 #define ELF_LINK_ADDR ELF64_LINK_ADDR 1172 #elif defined(ELFSIZE) && (ELFSIZE == 32) 1173 #define ELF_NO_ADDR ELF32_NO_ADDR 1174 #define ELF_LINK_ADDR ELF32_LINK_ADDR 1175 #endif 1176 1177 #ifndef ELF32_EHDR_FLAGS_OK 1178 #define ELF32_EHDR_FLAGS_OK(eh) 1 1179 #endif 1180 1181 #ifndef ELF64_EHDR_FLAGS_OK 1182 #define ELF64_EHDR_FLAGS_OK(eh) 1 1183 #endif 1184 1185 #if defined(ELFSIZE) && (ELFSIZE == 64) 1186 #define ELF_EHDR_FLAGS_OK(eh) ELF64_EHDR_FLAGS_OK(eh) 1187 #else 1188 #define ELF_EHDR_FLAGS_OK(eh) ELF32_EHDR_FLAGS_OK(eh) 1189 #endif 1190 1191 #if defined(ELFSIZE) 1192 struct elf_args { 1193 Elf_Addr arg_entry; /* program entry point */ 1194 Elf_Addr arg_interp; /* Interpreter load address */ 1195 Elf_Addr arg_phaddr; /* program header address */ 1196 Elf_Addr arg_phentsize; /* Size of program header */ 1197 Elf_Addr arg_phnum; /* Number of program headers */ 1198 }; 1199 #endif 1200 1201 #ifdef _KERNEL_OPT 1202 #include "opt_execfmt.h" 1203 #endif 1204 1205 struct ps_strings; 1206 1207 #ifdef EXEC_ELF32 1208 int exec_elf32_makecmds(struct lwp *, struct exec_package *); 1209 int elf32_copyargs(struct lwp *, struct exec_package *, 1210 struct ps_strings *, char **, void *); 1211 1212 int coredump_elf32(struct lwp *, void *); 1213 int coredump_writenote_elf32(struct proc *, void *, Elf32_Nhdr *, 1214 const char *, void *); 1215 1216 int elf32_check_header(Elf32_Ehdr *, int); 1217 #endif 1218 1219 #ifdef EXEC_ELF64 1220 int exec_elf64_makecmds(struct lwp *, struct exec_package *); 1221 int elf64_copyargs(struct lwp *, struct exec_package *, 1222 struct ps_strings *, char **, void *); 1223 1224 int coredump_elf64(struct lwp *, void *); 1225 int coredump_writenote_elf64(struct proc *, void *, Elf64_Nhdr *, 1226 const char *, void *); 1227 1228 int elf64_check_header(Elf64_Ehdr *, int); 1229 #endif 1230 1231 #endif /* _KERNEL */ 1232 1233 #endif /* !_SYS_EXEC_ELF_H_ */ 1234
