1 /* ELF support for BFD. 2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 3 2001, 2002 4 Free Software Foundation, Inc. 5 6 Written by Fred Fish @ Cygnus Support, from information published 7 in "UNIX System V Release 4, Programmers Guide: ANSI C and 8 Programming Support Tools". 9 10 This file is part of BFD, the Binary File Descriptor library. 11 12 This program is free software; you can redistribute it and/or modify 13 it under the terms of the GNU General Public License as published by 14 the Free Software Foundation; either version 2 of the License, or 15 (at your option) any later version. 16 17 This program is distributed in the hope that it will be useful, 18 but WITHOUT ANY WARRANTY; without even the implied warranty of 19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 GNU General Public License for more details. 21 22 You should have received a copy of the GNU General Public License 23 along with this program; if not, write to the Free Software 24 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 25 26 27 /* This file is part of ELF support for BFD, and contains the portions 28 that are common to both the internal and external representations. 29 For example, ELFMAG0 is the byte 0x7F in both the internal (in-memory) 30 and external (in-file) representations. */ 31 32 #ifndef _ELF_COMMON_H 33 #define _ELF_COMMON_H 34 35 /* Fields in e_ident[] */ 36 37 #define EI_MAG0 0 /* File identification byte 0 index */ 38 #define ELFMAG0 0x7F /* Magic number byte 0 */ 39 40 #define EI_MAG1 1 /* File identification byte 1 index */ 41 #define ELFMAG1 'E' /* Magic number byte 1 */ 42 43 #define EI_MAG2 2 /* File identification byte 2 index */ 44 #define ELFMAG2 'L' /* Magic number byte 2 */ 45 46 #define EI_MAG3 3 /* File identification byte 3 index */ 47 #define ELFMAG3 'F' /* Magic number byte 3 */ 48 49 #define EI_CLASS 4 /* File class */ 50 #define ELFCLASSNONE 0 /* Invalid class */ 51 #define ELFCLASS32 1 /* 32-bit objects */ 52 #define ELFCLASS64 2 /* 64-bit objects */ 53 54 #define EI_DATA 5 /* Data encoding */ 55 #define ELFDATANONE 0 /* Invalid data encoding */ 56 #define ELFDATA2LSB 1 /* 2's complement, little endian */ 57 #define ELFDATA2MSB 2 /* 2's complement, big endian */ 58 59 #define EI_VERSION 6 /* File version */ 60 61 #define EI_OSABI 7 /* Operating System/ABI indication */ 62 #define ELFOSABI_NONE 0 /* UNIX System V ABI */ 63 #define ELFOSABI_HPUX 1 /* HP-UX operating system */ 64 #define ELFOSABI_NETBSD 2 /* NetBSD */ 65 #define ELFOSABI_LINUX 3 /* GNU/Linux */ 66 #define ELFOSABI_HURD 4 /* GNU/Hurd */ 67 #define ELFOSABI_SOLARIS 6 /* Solaris */ 68 #define ELFOSABI_AIX 7 /* AIX */ 69 #define ELFOSABI_IRIX 8 /* IRIX */ 70 #define ELFOSABI_FREEBSD 9 /* FreeBSD */ 71 #define ELFOSABI_TRU64 10 /* TRU64 UNIX */ 72 #define ELFOSABI_MODESTO 11 /* Novell Modesto */ 73 #define ELFOSABI_OPENBSD 12 /* OpenBSD */ 74 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ 75 #define ELFOSABI_ARM 97 /* ARM */ 76 77 #define EI_ABIVERSION 8 /* ABI version */ 78 79 #define EI_PAD 9 /* Start of padding bytes */ 80 81 82 /* Values for e_type, which identifies the object file type. */ 83 84 #define ET_NONE 0 /* No file type */ 85 #define ET_REL 1 /* Relocatable file */ 86 #define ET_EXEC 2 /* Executable file */ 87 #define ET_DYN 3 /* Shared object file */ 88 #define ET_CORE 4 /* Core file */ 89 #define ET_LOOS 0xFE00 /* Operating system-specific */ 90 #define ET_HIOS 0xFEFF /* Operating system-specific */ 91 #define ET_LOPROC 0xFF00 /* Processor-specific */ 92 #define ET_HIPROC 0xFFFF /* Processor-specific */ 93 94 /* Values for e_machine, which identifies the architecture. These numbers 95 are officially assigned by [email protected]. See below for a list of 96 ad-hoc numbers used during initial development. */ 97 98 #define EM_NONE 0 /* No machine */ 99 #define EM_M32 1 /* AT&T WE 32100 */ 100 #define EM_SPARC 2 /* SUN SPARC */ 101 #define EM_386 3 /* Intel 80386 */ 102 #define EM_68K 4 /* Motorola m68k family */ 103 #define EM_88K 5 /* Motorola m88k family */ 104 #define EM_486 6 /* Intel 80486 *//* Reserved for future use */ 105 #define EM_860 7 /* Intel 80860 */ 106 #define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */ 107 #define EM_S370 9 /* IBM System/370 */ 108 #define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian (Oct 4 1999 Draft)*/ /* Depreciated */ 109 110 #define EM_PARISC 15 /* HPPA */ 111 112 #define EM_VPP550 17 /* Fujitsu VPP500 */ 113 #define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ 114 #define EM_960 19 /* Intel 80960 */ 115 #define EM_PPC 20 /* PowerPC */ 116 #define EM_PPC64 21 /* 64-bit PowerPC */ 117 #define EM_S390 22 /* IBM S/390 */ 118 119 #define EM_V800 36 /* NEC V800 series */ 120 #define EM_FR20 37 /* Fujitsu FR20 */ 121 #define EM_RH32 38 /* TRW RH32 */ 122 #define EM_MCORE 39 /* Motorola M*Core */ /* May also be taken by Fujitsu MMA */ 123 #define EM_RCE 39 /* Old name for MCore */ 124 #define EM_ARM 40 /* ARM */ 125 #define EM_OLD_ALPHA 41 /* Digital Alpha */ 126 #define EM_SH 42 /* Hitachi SH */ 127 #define EM_SPARCV9 43 /* SPARC v9 64-bit */ 128 #define EM_TRICORE 44 /* Siemens Tricore embedded processor */ 129 #define EM_ARC 45 /* ARC Cores */ 130 #define EM_H8_300 46 /* Hitachi H8/300 */ 131 #define EM_H8_300H 47 /* Hitachi H8/300H */ 132 #define EM_H8S 48 /* Hitachi H8S */ 133 #define EM_H8_500 49 /* Hitachi H8/500 */ 134 #define EM_IA_64 50 /* Intel IA-64 Processor */ 135 #define EM_MIPS_X 51 /* Stanford MIPS-X */ 136 #define EM_COLDFIRE 52 /* Motorola Coldfire */ 137 #define EM_68HC12 53 /* Motorola M68HC12 */ 138 #define EM_MMA 54 /* Fujitsu Multimedia Accelerator */ 139 #define EM_PCP 55 /* Siemens PCP */ 140 #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */ 141 #define EM_NDR1 57 /* Denso NDR1 microprocesspr */ 142 #define EM_STARCORE 58 /* Motorola Star*Core processor */ 143 #define EM_ME16 59 /* Toyota ME16 processor */ 144 #define EM_ST100 60 /* STMicroelectronics ST100 processor */ 145 #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded processor */ 146 #define EM_X86_64 62 /* Advanced Micro Devices X86-64 processor */ 147 148 #define EM_PDP10 64 /* Digital Equipment Corp. PDP-10 */ 149 #define EM_PDP11 65 /* Digital Equipment Corp. PDP-11 */ 150 #define EM_FX66 66 /* Siemens FX66 microcontroller */ 151 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 bit microcontroller */ 152 #define EM_ST7 68 /* STMicroelectronics ST7 8-bit microcontroller */ 153 #define EM_68HC16 69 /* Motorola MC68HC16 Microcontroller */ 154 #define EM_68HC11 70 /* Motorola MC68HC11 Microcontroller */ 155 #define EM_68HC08 71 /* Motorola MC68HC08 Microcontroller */ 156 #define EM_68HC05 72 /* Motorola MC68HC05 Microcontroller */ 157 #define EM_SVX 73 /* Silicon Graphics SVx */ 158 #define EM_ST19 74 /* STMicroelectronics ST19 8-bit cpu */ 159 #define EM_VAX 75 /* Digital VAX */ 160 #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ 161 #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded cpu */ 162 #define EM_FIREPATH 78 /* Element 14 64-bit DSP processor */ 163 #define EM_ZSP 79 /* LSI Logic's 16-bit DSP processor */ 164 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ 165 #define EM_HUANY 81 /* Harvard's machine-independent format */ 166 #define EM_PRISM 82 /* SiTera Prism */ 167 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ 168 #define EM_FR30 84 /* Fujitsu FR30 */ 169 #define EM_D10V 85 /* Mitsubishi D10V */ 170 #define EM_D30V 86 /* Mitsubishi D30V */ 171 #define EM_V850 87 /* NEC v850 */ 172 #define EM_M32R 88 /* Mitsubishi M32R */ 173 #define EM_MN10300 89 /* Matsushita MN10300 */ 174 #define EM_MN10200 90 /* Matsushita MN10200 */ 175 #define EM_PJ 91 /* picoJava */ 176 #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ 177 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ 178 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ 179 180 /* If it is necessary to assign new unofficial EM_* values, please pick large 181 random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision 182 with official or non-GNU unofficial values. 183 184 NOTE: Do not just increment the most recent number by one. 185 Somebody else somewhere will do exactly the same thing, and you 186 will have a collision. Instead, pick a random number. 187 188 Normally, each entity or maintainer responsible for a machine with an 189 unofficial e_machine number should eventually ask [email protected] for 190 an officially blessed number to be added to the list above. */ 191 192 #define EM_PJ_OLD 99 /* picoJava */ 193 194 /* Cygnus PowerPC ELF backend. Written in the absence of an ABI. */ 195 #define EM_CYGNUS_POWERPC 0x9025 196 197 /* Old version of Sparc v9, from before the ABI; this should be 198 removed shortly. */ 199 #define EM_OLD_SPARCV9 11 200 201 /* Old version of PowerPC, this should be removed shortly. */ 202 #define EM_PPC_OLD 17 203 204 /* (Depreciated) Temporary number for the OpenRISC processor. */ 205 #define EM_OR32 0x8472 206 207 /* Cygnus M32R ELF backend. Written in the absence of an ABI. */ 208 #define EM_CYGNUS_M32R 0x9041 209 210 /* Alpha backend magic number. Written in the absence of an ABI. */ 211 #define EM_ALPHA 0x9026 212 213 /* old S/390 backend magic number. Written in the absence of an ABI. */ 214 #define EM_S390_OLD 0xa390 215 216 /* D10V backend magic number. Written in the absence of an ABI. */ 217 #define EM_CYGNUS_D10V 0x7650 218 219 /* D30V backend magic number. Written in the absence of an ABI. */ 220 #define EM_CYGNUS_D30V 0x7676 221 222 /* V850 backend magic number. Written in the absense of an ABI. */ 223 #define EM_CYGNUS_V850 0x9080 224 225 /* mn10200 and mn10300 backend magic numbers. 226 Written in the absense of an ABI. */ 227 #define EM_CYGNUS_MN10200 0xdead 228 #define EM_CYGNUS_MN10300 0xbeef 229 230 /* FR30 magic number - no EABI available. */ 231 #define EM_CYGNUS_FR30 0x3330 232 233 /* AVR magic number 234 Written in the absense of an ABI. */ 235 #define EM_AVR_OLD 0x1057 236 237 /* OpenRISC magic number 238 Written in the absense of an ABI. */ 239 #define EM_OPENRISC_OLD 0x3426 240 241 /* DLX magic number 242 Written in the absense of an ABI. */ 243 #define EM_DLX 0x5aa5 244 245 #define EM_XSTORMY16 0xad45 246 247 /* FRV magic number - no EABI available??. */ 248 #define EM_CYGNUS_FRV 0x5441 249 /* See the above comment before you add a new EM_* value here. */ 250 251 /* Values for e_version. */ 252 253 #define EV_NONE 0 /* Invalid ELF version */ 254 #define EV_CURRENT 1 /* Current version */ 255 256 /* Values for program header, p_type field. */ 257 258 #define PT_NULL 0 /* Program header table entry unused */ 259 #define PT_LOAD 1 /* Loadable program segment */ 260 #define PT_DYNAMIC 2 /* Dynamic linking information */ 261 #define PT_INTERP 3 /* Program interpreter */ 262 #define PT_NOTE 4 /* Auxiliary information */ 263 #define PT_SHLIB 5 /* Reserved, unspecified semantics */ 264 #define PT_PHDR 6 /* Entry for header table itself */ 265 #define PT_TLS 7 /* Thread local storage segment */ 266 #define PT_LOOS 0x60000000 /* OS-specific */ 267 #define PT_HIOS 0x6fffffff /* OS-specific */ 268 #define PT_LOPROC 0x70000000 /* Processor-specific */ 269 #define PT_HIPROC 0x7FFFFFFF /* Processor-specific */ 270 271 #define PT_GNU_EH_FRAME (PT_LOOS + 0x474e550) 272 273 /* Program segment permissions, in program header p_flags field. */ 274 275 #define PF_X (1 << 0) /* Segment is executable */ 276 #define PF_W (1 << 1) /* Segment is writable */ 277 #define PF_R (1 << 2) /* Segment is readable */ 278 /* #define PF_MASKOS 0x0F000000 *//* OS-specific reserved bits */ 279 #define PF_MASKOS 0x0FF00000 /* New value, Oct 4, 1999 Draft */ 280 #define PF_MASKPROC 0xF0000000 /* Processor-specific reserved bits */ 281 282 /* Values for section header, sh_type field. */ 283 284 #define SHT_NULL 0 /* Section header table entry unused */ 285 #define SHT_PROGBITS 1 /* Program specific (private) data */ 286 #define SHT_SYMTAB 2 /* Link editing symbol table */ 287 #define SHT_STRTAB 3 /* A string table */ 288 #define SHT_RELA 4 /* Relocation entries with addends */ 289 #define SHT_HASH 5 /* A symbol hash table */ 290 #define SHT_DYNAMIC 6 /* Information for dynamic linking */ 291 #define SHT_NOTE 7 /* Information that marks file */ 292 #define SHT_NOBITS 8 /* Section occupies no space in file */ 293 #define SHT_REL 9 /* Relocation entries, no addends */ 294 #define SHT_SHLIB 10 /* Reserved, unspecified semantics */ 295 #define SHT_DYNSYM 11 /* Dynamic linking symbol table */ 296 297 #define SHT_INIT_ARRAY 14 /* Array of ptrs to init functions */ 298 #define SHT_FINI_ARRAY 15 /* Array of ptrs to finish functions */ 299 #define SHT_PREINIT_ARRAY 16 /* Array of ptrs to pre-init funcs */ 300 #define SHT_GROUP 17 /* Section contains a section group */ 301 #define SHT_SYMTAB_SHNDX 18 /* Indicies for SHN_XINDEX entries */ 302 303 #define SHT_LOOS 0x60000000 /* First of OS specific semantics */ 304 #define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */ 305 306 #define SHT_GNU_LIBLIST 0x6ffffff7 /* List of prelink dependencies */ 307 308 /* The next three section types are defined by Solaris, and are named 309 SHT_SUNW*. We use them in GNU code, so we also define SHT_GNU* 310 versions. */ 311 #define SHT_SUNW_verdef 0x6ffffffd /* Versions defined by file */ 312 #define SHT_SUNW_verneed 0x6ffffffe /* Versions needed by file */ 313 #define SHT_SUNW_versym 0x6fffffff /* Symbol versions */ 314 315 #define SHT_GNU_verdef SHT_SUNW_verdef 316 #define SHT_GNU_verneed SHT_SUNW_verneed 317 #define SHT_GNU_versym SHT_SUNW_versym 318 319 #define SHT_LOPROC 0x70000000 /* Processor-specific semantics, lo */ 320 #define SHT_HIPROC 0x7FFFFFFF /* Processor-specific semantics, hi */ 321 #define SHT_LOUSER 0x80000000 /* Application-specific semantics */ 322 /* #define SHT_HIUSER 0x8FFFFFFF *//* Application-specific semantics */ 323 #define SHT_HIUSER 0xFFFFFFFF /* New value, defined in Oct 4, 1999 Draft */ 324 325 /* Values for section header, sh_flags field. */ 326 327 #define SHF_WRITE (1 << 0) /* Writable data during execution */ 328 #define SHF_ALLOC (1 << 1) /* Occupies memory during execution */ 329 #define SHF_EXECINSTR (1 << 2) /* Executable machine instructions */ 330 #define SHF_MERGE (1 << 4) /* Data in this section can be merged */ 331 #define SHF_STRINGS (1 << 5) /* Contains null terminated character strings */ 332 #define SHF_INFO_LINK (1 << 6) /* sh_info holds section header table index */ 333 #define SHF_LINK_ORDER (1 << 7) /* Preserve section ordering when linking */ 334 #define SHF_OS_NONCONFORMING (1 << 8) /* OS specific processing required */ 335 #define SHF_GROUP (1 << 9) /* Member of a section group */ 336 #define SHF_TLS (1 << 10) /* Thread local storage section */ 337 338 /* #define SHF_MASKOS 0x0F000000 *//* OS-specific semantics */ 339 #define SHF_MASKOS 0x0FF00000 /* New value, Oct 4, 1999 Draft */ 340 #define SHF_MASKPROC 0xF0000000 /* Processor-specific semantics */ 341 342 /* Values of note segment descriptor types for core files. */ 343 344 #define NT_PRSTATUS 1 /* Contains copy of prstatus struct */ 345 #define NT_FPREGSET 2 /* Contains copy of fpregset struct */ 346 #define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */ 347 #define NT_TASKSTRUCT 4 /* Contains copy of task struct */ 348 #define NT_PRXFPREG 0x46e62b7f /* Contains a user_xfpregs_struct; */ 349 /* note name must be "LINUX". */ 350 351 /* Note segments for core files on dir-style procfs systems. */ 352 353 #define NT_PSTATUS 10 /* Has a struct pstatus */ 354 #define NT_FPREGS 12 /* Has a struct fpregset */ 355 #define NT_PSINFO 13 /* Has a struct psinfo */ 356 #define NT_LWPSTATUS 16 /* Has a struct lwpstatus_t */ 357 #define NT_LWPSINFO 17 /* Has a struct lwpsinfo_t */ 358 #define NT_WIN32PSTATUS 18 /* Has a struct win32_pstatus */ 359 360 361 /* Note segments for core files on NetBSD systems. Note name 362 must start with "NetBSD-CORE". */ 363 364 #define NT_NETBSDCORE_PROCINFO 1 /* Has a struct procinfo */ 365 #define NT_NETBSDCORE_FIRSTMACH 32 /* start of machdep note types */ 366 367 368 /* Values of note segment descriptor types for object files. */ 369 370 #define NT_VERSION 1 /* Contains a version string. */ 371 #define NT_ARCH 2 /* Contains an architecture string. */ 372 373 /* Values for GNU .note.ABI-tag notes. Note name is "GNU". */ 374 375 #define NT_GNU_ABI_TAG 1 376 #define GNU_ABI_TAG_LINUX 0 377 #define GNU_ABI_TAG_HURD 1 378 #define GNU_ABI_TAG_SOLARIS 2 379 380 /* Values for NetBSD .note.netbsd.ident notes. Note name is "NetBSD". */ 381 382 #define NT_NETBSD_IDENT 1 383 384 /* Values for FreeBSD .note.ABI-tag notes. Note name is "FreeBSD". */ 385 386 #define NT_FREEBSD_ABI_TAG 1 387 388 /* These three macros disassemble and assemble a symbol table st_info field, 389 which contains the symbol binding and symbol type. The STB_ and STT_ 390 defines identify the binding and type. */ 391 392 #define ELF_ST_BIND(val) (((unsigned int)(val)) >> 4) 393 #define ELF_ST_TYPE(val) ((val) & 0xF) 394 #define ELF_ST_INFO(bind,type) (((bind) << 4) + ((type) & 0xF)) 395 396 /* The 64bit and 32bit versions of these macros are identical, but 397 the ELF spec defines them, so here they are. */ 398 #define ELF32_ST_BIND ELF_ST_BIND 399 #define ELF32_ST_TYPE ELF_ST_TYPE 400 #define ELF32_ST_INFO ELF_ST_INFO 401 #define ELF64_ST_BIND ELF_ST_BIND 402 #define ELF64_ST_TYPE ELF_ST_TYPE 403 #define ELF64_ST_INFO ELF_ST_INFO 404 405 /* This macro disassembles and assembles a symbol's visibility into 406 the st_other field. The STV_ defines specificy the actual visibility. */ 407 408 #define ELF_ST_VISIBILITY(v) ((v) & 0x3) 409 /* The remaining bits in the st_other field are not currently used. 410 They should be set to zero. */ 411 412 #define ELF32_ST_VISIBILITY ELF_ST_VISIBILITY 413 #define ELF64_ST_VISIBILITY ELF_ST_VISIBILITY 414 415 416 #define STN_UNDEF 0 /* Undefined symbol index */ 417 418 #define STB_LOCAL 0 /* Symbol not visible outside obj */ 419 #define STB_GLOBAL 1 /* Symbol visible outside obj */ 420 #define STB_WEAK 2 /* Like globals, lower precedence */ 421 #define STB_LOOS 10 /* OS-specific semantics */ 422 #define STB_HIOS 12 /* OS-specific semantics */ 423 #define STB_LOPROC 13 /* Application-specific semantics */ 424 #define STB_HIPROC 15 /* Application-specific semantics */ 425 426 #define STT_NOTYPE 0 /* Symbol type is unspecified */ 427 #define STT_OBJECT 1 /* Symbol is a data object */ 428 #define STT_FUNC 2 /* Symbol is a code object */ 429 #define STT_SECTION 3 /* Symbol associated with a section */ 430 #define STT_FILE 4 /* Symbol gives a file name */ 431 #define STT_COMMON 5 /* An uninitialised common block */ 432 #define STT_TLS 6 /* Thread local data object */ 433 #define STT_LOOS 10 /* OS-specific semantics */ 434 #define STT_HIOS 12 /* OS-specific semantics */ 435 #define STT_LOPROC 13 /* Application-specific semantics */ 436 #define STT_HIPROC 15 /* Application-specific semantics */ 437 438 /* Special section indices, which may show up in st_shndx fields, among 439 other places. */ 440 441 #define SHN_UNDEF 0 /* Undefined section reference */ 442 #define SHN_LORESERVE 0xFF00 /* Begin range of reserved indices */ 443 #define SHN_LOPROC 0xFF00 /* Begin range of appl-specific */ 444 #define SHN_HIPROC 0xFF1F /* End range of appl-specific */ 445 #define SHN_LOOS 0xFF20 /* OS specific semantics, lo */ 446 #define SHN_HIOS 0xFF3F /* OS specific semantics, hi */ 447 #define SHN_ABS 0xFFF1 /* Associated symbol is absolute */ 448 #define SHN_COMMON 0xFFF2 /* Associated symbol is in common */ 449 #define SHN_XINDEX 0xFFFF /* Section index is held elsewhere */ 450 #define SHN_HIRESERVE 0xFFFF /* End range of reserved indices */ 451 #define SHN_BAD ((unsigned) -1) /* Used internally by bfd */ 452 453 /* The following constants control how a symbol may be accessed once it has 454 become part of an executable or shared library. */ 455 456 #define STV_DEFAULT 0 /* Visibility is specified by binding type */ 457 #define STV_INTERNAL 1 /* OS specific version of STV_HIDDEN */ 458 #define STV_HIDDEN 2 /* Can only be seen inside currect component */ 459 #define STV_PROTECTED 3 /* Treat as STB_LOCAL inside current component */ 460 461 /* Relocation info handling macros. */ 462 463 #define ELF32_R_SYM(i) ((i) >> 8) 464 #define ELF32_R_TYPE(i) ((i) & 0xff) 465 #define ELF32_R_INFO(s,t) (((s) << 8) + ((t) & 0xff)) 466 467 #define ELF64_R_SYM(i) ((i) >> 32) 468 #define ELF64_R_TYPE(i) ((i) & 0xffffffff) 469 #define ELF64_R_INFO(s,t) (((bfd_vma) (s) << 32) + (bfd_vma) (t)) 470 471 /* Dynamic section tags. */ 472 473 #define DT_NULL 0 474 #define DT_NEEDED 1 475 #define DT_PLTRELSZ 2 476 #define DT_PLTGOT 3 477 #define DT_HASH 4 478 #define DT_STRTAB 5 479 #define DT_SYMTAB 6 480 #define DT_RELA 7 481 #define DT_RELASZ 8 482 #define DT_RELAENT 9 483 #define DT_STRSZ 10 484 #define DT_SYMENT 11 485 #define DT_INIT 12 486 #define DT_FINI 13 487 #define DT_SONAME 14 488 #define DT_RPATH 15 489 #define DT_SYMBOLIC 16 490 #define DT_REL 17 491 #define DT_RELSZ 18 492 #define DT_RELENT 19 493 #define DT_PLTREL 20 494 #define DT_DEBUG 21 495 #define DT_TEXTREL 22 496 #define DT_JMPREL 23 497 #define DT_BIND_NOW 24 498 #define DT_INIT_ARRAY 25 499 #define DT_FINI_ARRAY 26 500 #define DT_INIT_ARRAYSZ 27 501 #define DT_FINI_ARRAYSZ 28 502 #define DT_RUNPATH 29 503 #define DT_FLAGS 30 504 505 #define DT_ENCODING 32 506 #define DT_PREINIT_ARRAY 32 507 #define DT_PREINIT_ARRAYSZ 33 508 509 /* Note, the Oct 4, 1999 draft of the ELF ABI changed the values 510 for DT_LOOS and DT_HIOS. Some implementations however, use 511 values outside of the new range (see below). */ 512 #define OLD_DT_LOOS 0x60000000 513 #define DT_LOOS 0x6000000d 514 #define DT_HIOS 0x6fff0000 515 #define OLD_DT_HIOS 0x6fffffff 516 517 #define DT_LOPROC 0x70000000 518 #define DT_HIPROC 0x7fffffff 519 520 /* The next four dynamic tags are used on Solaris. We support them 521 everywhere. Note these values lie outside of the (new) range for 522 OS specific values. This is a deliberate special case and we 523 maintain it for backwards compatability. */ 524 #define DT_VALRNGLO 0x6ffffd00 525 #define DT_GNU_PRELINKED 0x6ffffdf5 526 #define DT_GNU_CONFLICTSZ 0x6ffffdf6 527 #define DT_GNU_LIBLISTSZ 0x6ffffdf7 528 #define DT_CHECKSUM 0x6ffffdf8 529 #define DT_PLTPADSZ 0x6ffffdf9 530 #define DT_MOVEENT 0x6ffffdfa 531 #define DT_MOVESZ 0x6ffffdfb 532 #define DT_FEATURE 0x6ffffdfc 533 #define DT_POSFLAG_1 0x6ffffdfd 534 #define DT_SYMINSZ 0x6ffffdfe 535 #define DT_SYMINENT 0x6ffffdff 536 #define DT_VALRNGHI 0x6ffffdff 537 538 #define DT_ADDRRNGLO 0x6ffffe00 539 #define DT_GNU_CONFLICT 0x6ffffef8 540 #define DT_GNU_LIBLIST 0x6ffffef9 541 #define DT_CONFIG 0x6ffffefa 542 #define DT_DEPAUDIT 0x6ffffefb 543 #define DT_AUDIT 0x6ffffefc 544 #define DT_PLTPAD 0x6ffffefd 545 #define DT_MOVETAB 0x6ffffefe 546 #define DT_SYMINFO 0x6ffffeff 547 #define DT_ADDRRNGHI 0x6ffffeff 548 549 #define DT_RELACOUNT 0x6ffffff9 550 #define DT_RELCOUNT 0x6ffffffa 551 #define DT_FLAGS_1 0x6ffffffb 552 #define DT_VERDEF 0x6ffffffc 553 #define DT_VERDEFNUM 0x6ffffffd 554 #define DT_VERNEED 0x6ffffffe 555 #define DT_VERNEEDNUM 0x6fffffff 556 557 /* This tag is a GNU extension to the Solaris version scheme. */ 558 #define DT_VERSYM 0x6ffffff0 559 560 #define DT_LOPROC 0x70000000 561 #define DT_HIPROC 0x7fffffff 562 563 /* These section tags are used on Solaris. We support them 564 everywhere, and hope they do not conflict. */ 565 566 #define DT_AUXILIARY 0x7ffffffd 567 #define DT_USED 0x7ffffffe 568 #define DT_FILTER 0x7fffffff 569 570 571 /* Values used in DT_FEATURE .dynamic entry. */ 572 #define DTF_1_PARINIT 0x00000001 573 /* From 574 575 http://docs.sun.com:80/ab2/coll.45.13/LLM/@Ab2PageView/21165?Ab2Lang=C&Ab2Enc=iso-8859-1 576 577 DTF_1_CONFEXP is the same as DTF_1_PARINIT. It is a typo. The value 578 defined here is the same as the one in <sys/link.h> on Solaris 8. */ 579 #define DTF_1_CONFEXP 0x00000002 580 581 /* Flag values used in the DT_POSFLAG_1 .dynamic entry. */ 582 #define DF_P1_LAZYLOAD 0x00000001 583 #define DF_P1_GROUPPERM 0x00000002 584 585 /* Flag value in in the DT_FLAGS_1 .dynamic entry. */ 586 #define DF_1_NOW 0x00000001 587 #define DF_1_GLOBAL 0x00000002 588 #define DF_1_GROUP 0x00000004 589 #define DF_1_NODELETE 0x00000008 590 #define DF_1_LOADFLTR 0x00000010 591 #define DF_1_INITFIRST 0x00000020 592 #define DF_1_NOOPEN 0x00000040 593 #define DF_1_ORIGIN 0x00000080 594 #define DF_1_DIRECT 0x00000100 595 #define DF_1_TRANS 0x00000200 596 #define DF_1_INTERPOSE 0x00000400 597 #define DF_1_NODEFLIB 0x00000800 598 #define DF_1_NODUMP 0x00001000 599 #define DF_1_CONLFAT 0x00002000 600 601 /* Flag values for the DT_FLAGS entry. */ 602 #define DF_ORIGIN (1 << 0) 603 #define DF_SYMBOLIC (1 << 1) 604 #define DF_TEXTREL (1 << 2) 605 #define DF_BIND_NOW (1 << 3) 606 #define DF_STATIC_TLS (1 << 4) 607 608 /* These constants are used for the version number of a Elf32_Verdef 609 structure. */ 610 611 #define VER_DEF_NONE 0 612 #define VER_DEF_CURRENT 1 613 614 /* These constants appear in the vd_flags field of a Elf32_Verdef 615 structure. */ 616 617 #define VER_FLG_BASE 0x1 618 #define VER_FLG_WEAK 0x2 619 620 /* These special constants can be found in an Elf32_Versym field. */ 621 622 #define VER_NDX_LOCAL 0 623 #define VER_NDX_GLOBAL 1 624 625 /* These constants are used for the version number of a Elf32_Verneed 626 structure. */ 627 628 #define VER_NEED_NONE 0 629 #define VER_NEED_CURRENT 1 630 631 /* This flag appears in a Versym structure. It means that the symbol 632 is hidden, and is only visible with an explicit version number. 633 This is a GNU extension. */ 634 635 #define VERSYM_HIDDEN 0x8000 636 637 /* This is the mask for the rest of the Versym information. */ 638 639 #define VERSYM_VERSION 0x7fff 640 641 /* This is a special token which appears as part of a symbol name. It 642 indictes that the rest of the name is actually the name of a 643 version node, and is not part of the actual name. This is a GNU 644 extension. For example, the symbol name `stat@ver2' is taken to 645 mean the symbol `stat' in version `ver2'. */ 646 647 #define ELF_VER_CHR '@' 648 649 /* Possible values for si_boundto. */ 650 651 #define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */ 652 #define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */ 653 #define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */ 654 655 /* Possible bitmasks for si_flags. */ 656 657 #define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */ 658 #define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */ 659 #define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */ 660 #define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy loaded */ 661 662 /* Syminfo version values. */ 663 664 #define SYMINFO_NONE 0 665 #define SYMINFO_CURRENT 1 666 #define SYMINFO_NUM 2 667 668 /* Section Group Flags. */ 669 670 #define GRP_COMDAT 0x1 /* A COMDAT group */ 671 672 #endif /* _ELF_COMMON_H */ 673