1/* ELF support for BFD. 2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 3 2001, 2002, 2003, 2004, 2005, 2006, 2007 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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_OPENVMS 13 /* OpenVMS */ 75#define ELFOSABI_NSK 14 /* Hewlett-Packard Non-Stop Kernel */ 76#define ELFOSABI_AROS 15 /* Amiga Research OS */ 77#define ELFOSABI_ARM 97 /* ARM */ 78#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ 79 80#define EI_ABIVERSION 8 /* ABI version */ 81 82#define EI_PAD 9 /* Start of padding bytes */ 83 84 85/* Values for e_type, which identifies the object file type. */ 86 87#define ET_NONE 0 /* No file type */ 88#define ET_REL 1 /* Relocatable file */ 89#define ET_EXEC 2 /* Executable file */ 90#define ET_DYN 3 /* Shared object file */ 91#define ET_CORE 4 /* Core file */ 92#define ET_LOOS 0xFE00 /* Operating system-specific */ 93#define ET_HIOS 0xFEFF /* Operating system-specific */ 94#define ET_LOPROC 0xFF00 /* Processor-specific */ 95#define ET_HIPROC 0xFFFF /* Processor-specific */ 96 97/* Values for e_machine, which identifies the architecture. These numbers 98 are officially assigned by registry@caldera.com. See below for a list of 99 ad-hoc numbers used during initial development. */ 100 101#define EM_NONE 0 /* No machine */ 102#define EM_M32 1 /* AT&T WE 32100 */ 103#define EM_SPARC 2 /* SUN SPARC */ 104#define EM_386 3 /* Intel 80386 */ 105#define EM_68K 4 /* Motorola m68k family */ 106#define EM_88K 5 /* Motorola m88k family */ 107#define EM_486 6 /* Intel 80486 *//* Reserved for future use */ 108#define EM_860 7 /* Intel 80860 */ 109#define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */ 110#define EM_S370 9 /* IBM System/370 */ 111#define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian (Oct 4 1999 Draft) Deprecated */ 112 113#define EM_PARISC 15 /* HPPA */ 114 115#define EM_VPP550 17 /* Fujitsu VPP500 */ 116#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ 117#define EM_960 19 /* Intel 80960 */ 118#define EM_PPC 20 /* PowerPC */ 119#define EM_PPC64 21 /* 64-bit PowerPC */ 120#define EM_S390 22 /* IBM S/390 */ 121#define EM_SPU 23 /* Sony/Toshiba/IBM SPU */ 122 123#define EM_V800 36 /* NEC V800 series */ 124#define EM_FR20 37 /* Fujitsu FR20 */ 125#define EM_RH32 38 /* TRW RH32 */ 126#define EM_MCORE 39 /* Motorola M*Core */ /* May also be taken by Fujitsu MMA */ 127#define EM_RCE 39 /* Old name for MCore */ 128#define EM_ARM 40 /* ARM */ 129#define EM_OLD_ALPHA 41 /* Digital Alpha */ 130#define EM_SH 42 /* Renesas (formerly Hitachi) / SuperH SH */ 131#define EM_SPARCV9 43 /* SPARC v9 64-bit */ 132#define EM_TRICORE 44 /* Siemens Tricore embedded processor */ 133#define EM_ARC 45 /* ARC Cores */ 134#define EM_H8_300 46 /* Renesas (formerly Hitachi) H8/300 */ 135#define EM_H8_300H 47 /* Renesas (formerly Hitachi) H8/300H */ 136#define EM_H8S 48 /* Renesas (formerly Hitachi) H8S */ 137#define EM_H8_500 49 /* Renesas (formerly Hitachi) H8/500 */ 138#define EM_IA_64 50 /* Intel IA-64 Processor */ 139#define EM_MIPS_X 51 /* Stanford MIPS-X */ 140#define EM_COLDFIRE 52 /* Motorola Coldfire */ 141#define EM_68HC12 53 /* Motorola M68HC12 */ 142#define EM_MMA 54 /* Fujitsu Multimedia Accelerator */ 143#define EM_PCP 55 /* Siemens PCP */ 144#define EM_NCPU 56 /* Sony nCPU embedded RISC processor */ 145#define EM_NDR1 57 /* Denso NDR1 microprocesspr */ 146#define EM_STARCORE 58 /* Motorola Star*Core processor */ 147#define EM_ME16 59 /* Toyota ME16 processor */ 148#define EM_ST100 60 /* STMicroelectronics ST100 processor */ 149#define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded processor */ 150#define EM_X86_64 62 /* Advanced Micro Devices X86-64 processor */ 151 152#define EM_PDP10 64 /* Digital Equipment Corp. PDP-10 */ 153#define EM_PDP11 65 /* Digital Equipment Corp. PDP-11 */ 154#define EM_FX66 66 /* Siemens FX66 microcontroller */ 155#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 bit microcontroller */ 156#define EM_ST7 68 /* STMicroelectronics ST7 8-bit microcontroller */ 157#define EM_68HC16 69 /* Motorola MC68HC16 Microcontroller */ 158#define EM_68HC11 70 /* Motorola MC68HC11 Microcontroller */ 159#define EM_68HC08 71 /* Motorola MC68HC08 Microcontroller */ 160#define EM_68HC05 72 /* Motorola MC68HC05 Microcontroller */ 161#define EM_SVX 73 /* Silicon Graphics SVx */ 162#define EM_ST19 74 /* STMicroelectronics ST19 8-bit cpu */ 163#define EM_VAX 75 /* Digital VAX */ 164#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ 165#define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded cpu */ 166#define EM_FIREPATH 78 /* Element 14 64-bit DSP processor */ 167#define EM_ZSP 79 /* LSI Logic's 16-bit DSP processor */ 168#define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ 169#define EM_HUANY 81 /* Harvard's machine-independent format */ 170#define EM_PRISM 82 /* SiTera Prism */ 171#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ 172#define EM_FR30 84 /* Fujitsu FR30 */ 173#define EM_D10V 85 /* Mitsubishi D10V */ 174#define EM_D30V 86 /* Mitsubishi D30V */ 175#define EM_V850 87 /* NEC v850 */ 176#define EM_M32R 88 /* Renesas M32R (formerly Mitsubishi M32R) */ 177#define EM_MN10300 89 /* Matsushita MN10300 */ 178#define EM_MN10200 90 /* Matsushita MN10200 */ 179#define EM_PJ 91 /* picoJava */ 180#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ 181#define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ 182#define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ 183#define EM_IP2K 101 /* Ubicom IP2022 micro controller */ 184#define EM_CR 103 /* National Semiconductor CompactRISC */ 185#define EM_MSP430 105 /* TI msp430 micro controller */ 186#define EM_BLACKFIN 106 /* ADI Blackfin */ 187#define EM_ALTERA_NIOS2 113 /* Altera Nios II soft-core processor */ 188#define EM_CRX 114 /* National Semiconductor CRX */ 189#define EM_CR16 115 /* National Semiconductor CompactRISC - CR16 */ 190#define EM_SCORE 135 /* Sunplus Score */ 191 192/* If it is necessary to assign new unofficial EM_* values, please pick large 193 random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision 194 with official or non-GNU unofficial values. 195 196 NOTE: Do not just increment the most recent number by one. 197 Somebody else somewhere will do exactly the same thing, and you 198 will have a collision. Instead, pick a random number. 199 200 Normally, each entity or maintainer responsible for a machine with an 201 unofficial e_machine number should eventually ask registry@caldera.com for 202 an officially blessed number to be added to the list above. */ 203 204/* Old version of Sparc v9, from before the ABI; 205 This should be removed shortly. */ 206#define EM_OLD_SPARCV9 11 207 208/* Old version of PowerPC, this should be removed shortly. */ 209#define EM_PPC_OLD 17 210 211/* picoJava */ 212#define EM_PJ_OLD 99 213 214/* AVR magic number. Written in the absense of an ABI. */ 215#define EM_AVR_OLD 0x1057 216 217/* MSP430 magic number. Written in the absense of everything. */ 218#define EM_MSP430_OLD 0x1059 219 220/* Morpho MT. Written in the absense of an ABI. */ 221#define EM_MT 0x2530 222 223/* FR30 magic number - no EABI available. */ 224#define EM_CYGNUS_FR30 0x3330 225 226/* OpenRISC magic number. Written in the absense of an ABI. */ 227#define EM_OPENRISC_OLD 0x3426 228 229/* DLX magic number. Written in the absense of an ABI. */ 230#define EM_DLX 0x5aa5 231 232/* FRV magic number - no EABI available??. */ 233#define EM_CYGNUS_FRV 0x5441 234 235/* Infineon Technologies 16-bit microcontroller with C166-V2 core. */ 236#define EM_XC16X 0x4688 237 238/* D10V backend magic number. Written in the absence of an ABI. */ 239#define EM_CYGNUS_D10V 0x7650 240 241/* D30V backend magic number. Written in the absence of an ABI. */ 242#define EM_CYGNUS_D30V 0x7676 243 244/* Ubicom IP2xxx; Written in the absense of an ABI. */ 245#define EM_IP2K_OLD 0x8217 246 247/* (Deprecated) Temporary number for the OpenRISC processor. */ 248#define EM_OR32 0x8472 249 250/* Cygnus PowerPC ELF backend. Written in the absence of an ABI. */ 251#define EM_CYGNUS_POWERPC 0x9025 252 253/* Alpha backend magic number. Written in the absence of an ABI. */ 254#define EM_ALPHA 0x9026 255 256/* Cygnus M32R ELF backend. Written in the absence of an ABI. */ 257#define EM_CYGNUS_M32R 0x9041 258 259/* V850 backend magic number. Written in the absense of an ABI. */ 260#define EM_CYGNUS_V850 0x9080 261 262/* old S/390 backend magic number. Written in the absence of an ABI. */ 263#define EM_S390_OLD 0xa390 264 265/* Old, unofficial value for Xtensa. */ 266#define EM_XTENSA_OLD 0xabc7 267 268#define EM_XSTORMY16 0xad45 269 270/* mn10200 and mn10300 backend magic numbers. 271 Written in the absense of an ABI. */ 272#define EM_CYGNUS_MN10300 0xbeef 273#define EM_CYGNUS_MN10200 0xdead 274 275/* Renesas M32C and M16C. */ 276#define EM_M32C 0xFEB0 277 278/* Vitesse IQ2000. */ 279#define EM_IQ2000 0xFEBA 280 281/* NIOS magic number - no EABI available. */ 282#define EM_NIOS32 0xFEBB 283 284#define EM_CYGNUS_MEP 0xF00D /* Toshiba MeP */ 285 286/* See the above comment before you add a new EM_* value here. */ 287 288/* Values for e_version. */ 289 290#define EV_NONE 0 /* Invalid ELF version */ 291#define EV_CURRENT 1 /* Current version */ 292 293/* Values for program header, p_type field. */ 294 295#define PT_NULL 0 /* Program header table entry unused */ 296#define PT_LOAD 1 /* Loadable program segment */ 297#define PT_DYNAMIC 2 /* Dynamic linking information */ 298#define PT_INTERP 3 /* Program interpreter */ 299#define PT_NOTE 4 /* Auxiliary information */ 300#define PT_SHLIB 5 /* Reserved, unspecified semantics */ 301#define PT_PHDR 6 /* Entry for header table itself */ 302#define PT_TLS 7 /* Thread local storage segment */ 303#define PT_LOOS 0x60000000 /* OS-specific */ 304#define PT_HIOS 0x6fffffff /* OS-specific */ 305#define PT_LOPROC 0x70000000 /* Processor-specific */ 306#define PT_HIPROC 0x7FFFFFFF /* Processor-specific */ 307 308#define PT_GNU_EH_FRAME (PT_LOOS + 0x474e550) /* Frame unwind information */ 309#define PT_SUNW_EH_FRAME PT_GNU_EH_FRAME /* Solaris uses the same value */ 310#define PT_GNU_STACK (PT_LOOS + 0x474e551) /* Stack flags */ 311#define PT_GNU_RELRO (PT_LOOS + 0x474e552) /* Read-only after relocation */ 312 313/* Program segment permissions, in program header p_flags field. */ 314 315#define PF_X (1 << 0) /* Segment is executable */ 316#define PF_W (1 << 1) /* Segment is writable */ 317#define PF_R (1 << 2) /* Segment is readable */ 318/* #define PF_MASKOS 0x0F000000 *//* OS-specific reserved bits */ 319#define PF_MASKOS 0x0FF00000 /* New value, Oct 4, 1999 Draft */ 320#define PF_MASKPROC 0xF0000000 /* Processor-specific reserved bits */ 321 322/* Values for section header, sh_type field. */ 323 324#define SHT_NULL 0 /* Section header table entry unused */ 325#define SHT_PROGBITS 1 /* Program specific (private) data */ 326#define SHT_SYMTAB 2 /* Link editing symbol table */ 327#define SHT_STRTAB 3 /* A string table */ 328#define SHT_RELA 4 /* Relocation entries with addends */ 329#define SHT_HASH 5 /* A symbol hash table */ 330#define SHT_DYNAMIC 6 /* Information for dynamic linking */ 331#define SHT_NOTE 7 /* Information that marks file */ 332#define SHT_NOBITS 8 /* Section occupies no space in file */ 333#define SHT_REL 9 /* Relocation entries, no addends */ 334#define SHT_SHLIB 10 /* Reserved, unspecified semantics */ 335#define SHT_DYNSYM 11 /* Dynamic linking symbol table */ 336 337#define SHT_INIT_ARRAY 14 /* Array of ptrs to init functions */ 338#define SHT_FINI_ARRAY 15 /* Array of ptrs to finish functions */ 339#define SHT_PREINIT_ARRAY 16 /* Array of ptrs to pre-init funcs */ 340#define SHT_GROUP 17 /* Section contains a section group */ 341#define SHT_SYMTAB_SHNDX 18 /* Indicies for SHN_XINDEX entries */ 342 343#define SHT_LOOS 0x60000000 /* First of OS specific semantics */ 344#define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */ 345 346#define SHT_GNU_ATTRIBUTES 0x6ffffff5 /* Object attributes */ 347#define SHT_GNU_HASH 0x6ffffff6 /* GNU style symbol hash table */ 348#define SHT_GNU_LIBLIST 0x6ffffff7 /* List of prelink dependencies */ 349 350/* The next three section types are defined by Solaris, and are named 351 SHT_SUNW*. We use them in GNU code, so we also define SHT_GNU* 352 versions. */ 353#define SHT_SUNW_verdef 0x6ffffffd /* Versions defined by file */ 354#define SHT_SUNW_verneed 0x6ffffffe /* Versions needed by file */ 355#define SHT_SUNW_versym 0x6fffffff /* Symbol versions */ 356 357#define SHT_GNU_verdef SHT_SUNW_verdef 358#define SHT_GNU_verneed SHT_SUNW_verneed 359#define SHT_GNU_versym SHT_SUNW_versym 360 361#define SHT_LOPROC 0x70000000 /* Processor-specific semantics, lo */ 362#define SHT_HIPROC 0x7FFFFFFF /* Processor-specific semantics, hi */ 363#define SHT_LOUSER 0x80000000 /* Application-specific semantics */ 364/* #define SHT_HIUSER 0x8FFFFFFF *//* Application-specific semantics */ 365#define SHT_HIUSER 0xFFFFFFFF /* New value, defined in Oct 4, 1999 Draft */ 366 367/* Values for section header, sh_flags field. */ 368 369#define SHF_WRITE (1 << 0) /* Writable data during execution */ 370#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */ 371#define SHF_EXECINSTR (1 << 2) /* Executable machine instructions */ 372#define SHF_MERGE (1 << 4) /* Data in this section can be merged */ 373#define SHF_STRINGS (1 << 5) /* Contains null terminated character strings */ 374#define SHF_INFO_LINK (1 << 6) /* sh_info holds section header table index */ 375#define SHF_LINK_ORDER (1 << 7) /* Preserve section ordering when linking */ 376#define SHF_OS_NONCONFORMING (1 << 8) /* OS specific processing required */ 377#define SHF_GROUP (1 << 9) /* Member of a section group */ 378#define SHF_TLS (1 << 10) /* Thread local storage section */ 379 380/* #define SHF_MASKOS 0x0F000000 *//* OS-specific semantics */ 381#define SHF_MASKOS 0x0FF00000 /* New value, Oct 4, 1999 Draft */ 382#define SHF_MASKPROC 0xF0000000 /* Processor-specific semantics */ 383 384/* Values of note segment descriptor types for core files. */ 385 386#define NT_PRSTATUS 1 /* Contains copy of prstatus struct */ 387#define NT_FPREGSET 2 /* Contains copy of fpregset struct */ 388#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */ 389#define NT_TASKSTRUCT 4 /* Contains copy of task struct */ 390#define NT_AUXV 6 /* Contains copy of Elfxx_auxv_t */ 391#define NT_THRMISC 7 /* Contains copy of thrmisc struct */ 392#define NT_PRXFPREG 0x46e62b7f /* Contains a user_xfpregs_struct; */ 393 /* note name must be "LINUX". */ 394 395/* Note segments for core files on dir-style procfs systems. */ 396 397#define NT_PSTATUS 10 /* Has a struct pstatus */ 398#define NT_FPREGS 12 /* Has a struct fpregset */ 399#define NT_PSINFO 13 /* Has a struct psinfo */ 400#define NT_LWPSTATUS 16 /* Has a struct lwpstatus_t */ 401#define NT_LWPSINFO 17 /* Has a struct lwpsinfo_t */ 402#define NT_WIN32PSTATUS 18 /* Has a struct win32_pstatus */ 403 404 405/* Note segments for core files on NetBSD systems. Note name 406 must start with "NetBSD-CORE". */ 407 408#define NT_NETBSDCORE_PROCINFO 1 /* Has a struct procinfo */ 409#define NT_NETBSDCORE_FIRSTMACH 32 /* start of machdep note types */ 410 411 412/* Values of note segment descriptor types for object files. */ 413 414#define NT_VERSION 1 /* Contains a version string. */ 415#define NT_ARCH 2 /* Contains an architecture string. */ 416 417/* Values for GNU .note.ABI-tag notes. Note name is "GNU". */ 418 419#define NT_GNU_ABI_TAG 1 420#define GNU_ABI_TAG_LINUX 0 421#define GNU_ABI_TAG_HURD 1 422#define GNU_ABI_TAG_SOLARIS 2 423#define GNU_ABI_TAG_FREEBSD 3 424#define GNU_ABI_TAG_NETBSD 4 425 426/* Values for NetBSD .note.netbsd.ident notes. Note name is "NetBSD". */ 427 428#define NT_NETBSD_IDENT 1 429 430/* Values for OpenBSD .note.openbsd.ident notes. Note name is "OpenBSD". */ 431 432#define NT_OPENBSD_IDENT 1 433 434/* Values for FreeBSD .note.ABI-tag notes. Note name is "FreeBSD". */ 435 436#define NT_FREEBSD_ABI_TAG 1 437 438/* These three macros disassemble and assemble a symbol table st_info field, 439 which contains the symbol binding and symbol type. The STB_ and STT_ 440 defines identify the binding and type. */ 441 442#define ELF_ST_BIND(val) (((unsigned int)(val)) >> 4) 443#define ELF_ST_TYPE(val) ((val) & 0xF) 444#define ELF_ST_INFO(bind,type) (((bind) << 4) + ((type) & 0xF)) 445 446/* The 64bit and 32bit versions of these macros are identical, but 447 the ELF spec defines them, so here they are. */ 448#define ELF32_ST_BIND ELF_ST_BIND 449#define ELF32_ST_TYPE ELF_ST_TYPE 450#define ELF32_ST_INFO ELF_ST_INFO 451#define ELF64_ST_BIND ELF_ST_BIND 452#define ELF64_ST_TYPE ELF_ST_TYPE 453#define ELF64_ST_INFO ELF_ST_INFO 454 455/* This macro disassembles and assembles a symbol's visibility into 456 the st_other field. The STV_ defines specify the actual visibility. */ 457 458#define ELF_ST_VISIBILITY(v) ((v) & 0x3) 459/* The remaining bits in the st_other field are not currently used. 460 They should be set to zero. */ 461 462#define ELF32_ST_VISIBILITY ELF_ST_VISIBILITY 463#define ELF64_ST_VISIBILITY ELF_ST_VISIBILITY 464 465 466#define STN_UNDEF 0 /* Undefined symbol index */ 467 468#define STB_LOCAL 0 /* Symbol not visible outside obj */ 469#define STB_GLOBAL 1 /* Symbol visible outside obj */ 470#define STB_WEAK 2 /* Like globals, lower precedence */ 471#define STB_LOOS 10 /* OS-specific semantics */ 472#define STB_HIOS 12 /* OS-specific semantics */ 473#define STB_LOPROC 13 /* Application-specific semantics */ 474#define STB_HIPROC 15 /* Application-specific semantics */ 475 476#define STT_NOTYPE 0 /* Symbol type is unspecified */ 477#define STT_OBJECT 1 /* Symbol is a data object */ 478#define STT_FUNC 2 /* Symbol is a code object */ 479#define STT_SECTION 3 /* Symbol associated with a section */ 480#define STT_FILE 4 /* Symbol gives a file name */ 481#define STT_COMMON 5 /* An uninitialised common block */ 482#define STT_TLS 6 /* Thread local data object */ 483#define STT_RELC 8 /* Complex relocation expression */ 484#define STT_SRELC 9 /* Signed Complex relocation expression */ 485#define STT_LOOS 10 /* OS-specific semantics */ 486#define STT_HIOS 12 /* OS-specific semantics */ 487#define STT_LOPROC 13 /* Application-specific semantics */ 488#define STT_HIPROC 15 /* Application-specific semantics */ 489 490/* Special section indices, which may show up in st_shndx fields, among 491 other places. */ 492 493#define SHN_UNDEF 0 /* Undefined section reference */ 494#define SHN_LORESERVE 0xFF00 /* Begin range of reserved indices */ 495#define SHN_LOPROC 0xFF00 /* Begin range of appl-specific */ 496#define SHN_HIPROC 0xFF1F /* End range of appl-specific */ 497#define SHN_LOOS 0xFF20 /* OS specific semantics, lo */ 498#define SHN_HIOS 0xFF3F /* OS specific semantics, hi */ 499#define SHN_ABS 0xFFF1 /* Associated symbol is absolute */ 500#define SHN_COMMON 0xFFF2 /* Associated symbol is in common */ 501#define SHN_XINDEX 0xFFFF /* Section index is held elsewhere */ 502#define SHN_HIRESERVE 0xFFFF /* End range of reserved indices */ 503#define SHN_BAD ((unsigned) -1) /* Used internally by bfd */ 504 505/* The following constants control how a symbol may be accessed once it has 506 become part of an executable or shared library. */ 507 508#define STV_DEFAULT 0 /* Visibility is specified by binding type */ 509#define STV_INTERNAL 1 /* OS specific version of STV_HIDDEN */ 510#define STV_HIDDEN 2 /* Can only be seen inside currect component */ 511#define STV_PROTECTED 3 /* Treat as STB_LOCAL inside current component */ 512 513/* Relocation info handling macros. */ 514 515#define ELF32_R_SYM(i) ((i) >> 8) 516#define ELF32_R_TYPE(i) ((i) & 0xff) 517#define ELF32_R_INFO(s,t) (((s) << 8) + ((t) & 0xff)) 518 519#define ELF64_R_SYM(i) ((i) >> 32) 520#define ELF64_R_TYPE(i) ((i) & 0xffffffff) 521#define ELF64_R_INFO(s,t) (((bfd_vma) (s) << 31 << 1) + (bfd_vma) (t)) 522 523/* Dynamic section tags. */ 524 525#define DT_NULL 0 526#define DT_NEEDED 1 527#define DT_PLTRELSZ 2 528#define DT_PLTGOT 3 529#define DT_HASH 4 530#define DT_STRTAB 5 531#define DT_SYMTAB 6 532#define DT_RELA 7 533#define DT_RELASZ 8 534#define DT_RELAENT 9 535#define DT_STRSZ 10 536#define DT_SYMENT 11 537#define DT_INIT 12 538#define DT_FINI 13 539#define DT_SONAME 14 540#define DT_RPATH 15 541#define DT_SYMBOLIC 16 542#define DT_REL 17 543#define DT_RELSZ 18 544#define DT_RELENT 19 545#define DT_PLTREL 20 546#define DT_DEBUG 21 547#define DT_TEXTREL 22 548#define DT_JMPREL 23 549#define DT_BIND_NOW 24 550#define DT_INIT_ARRAY 25 551#define DT_FINI_ARRAY 26 552#define DT_INIT_ARRAYSZ 27 553#define DT_FINI_ARRAYSZ 28 554#define DT_RUNPATH 29 555#define DT_FLAGS 30 556#define DT_ENCODING 32 557#define DT_PREINIT_ARRAY 32 558#define DT_PREINIT_ARRAYSZ 33 559 560/* Note, the Oct 4, 1999 draft of the ELF ABI changed the values 561 for DT_LOOS and DT_HIOS. Some implementations however, use 562 values outside of the new range (see below). */ 563#define OLD_DT_LOOS 0x60000000 564#define DT_LOOS 0x6000000d 565#define DT_HIOS 0x6ffff000 566#define OLD_DT_HIOS 0x6fffffff 567 568#define DT_LOPROC 0x70000000 569#define DT_HIPROC 0x7fffffff 570 571/* The next four dynamic tags are used on Solaris. We support them 572 everywhere. Note these values lie outside of the (new) range for 573 OS specific values. This is a deliberate special case and we 574 maintain it for backwards compatability. */ 575#define DT_VALRNGLO 0x6ffffd00 576#define DT_GNU_PRELINKED 0x6ffffdf5 577#define DT_GNU_CONFLICTSZ 0x6ffffdf6 578#define DT_GNU_LIBLISTSZ 0x6ffffdf7 579#define DT_CHECKSUM 0x6ffffdf8 580#define DT_PLTPADSZ 0x6ffffdf9 581#define DT_MOVEENT 0x6ffffdfa 582#define DT_MOVESZ 0x6ffffdfb 583#define DT_FEATURE 0x6ffffdfc 584#define DT_POSFLAG_1 0x6ffffdfd 585#define DT_SYMINSZ 0x6ffffdfe 586#define DT_SYMINENT 0x6ffffdff 587#define DT_VALRNGHI 0x6ffffdff 588 589#define DT_ADDRRNGLO 0x6ffffe00 590#define DT_GNU_HASH 0x6ffffef5 591#define DT_TLSDESC_PLT 0x6ffffef6 592#define DT_TLSDESC_GOT 0x6ffffef7 593#define DT_GNU_CONFLICT 0x6ffffef8 594#define DT_GNU_LIBLIST 0x6ffffef9 595#define DT_CONFIG 0x6ffffefa 596#define DT_DEPAUDIT 0x6ffffefb 597#define DT_AUDIT 0x6ffffefc 598#define DT_PLTPAD 0x6ffffefd 599#define DT_MOVETAB 0x6ffffefe 600#define DT_SYMINFO 0x6ffffeff 601#define DT_ADDRRNGHI 0x6ffffeff 602 603#define DT_RELACOUNT 0x6ffffff9 604#define DT_RELCOUNT 0x6ffffffa 605#define DT_FLAGS_1 0x6ffffffb 606#define DT_VERDEF 0x6ffffffc 607#define DT_VERDEFNUM 0x6ffffffd 608#define DT_VERNEED 0x6ffffffe 609#define DT_VERNEEDNUM 0x6fffffff 610 611/* This tag is a GNU extension to the Solaris version scheme. */ 612#define DT_VERSYM 0x6ffffff0 613 614#define DT_LOPROC 0x70000000 615#define DT_HIPROC 0x7fffffff 616 617/* These section tags are used on Solaris. We support them 618 everywhere, and hope they do not conflict. */ 619 620#define DT_AUXILIARY 0x7ffffffd 621#define DT_USED 0x7ffffffe 622#define DT_FILTER 0x7fffffff 623 624 625/* Values used in DT_FEATURE .dynamic entry. */ 626#define DTF_1_PARINIT 0x00000001 627/* From 628 629 http://docs.sun.com:80/ab2/coll.45.13/LLM/@Ab2PageView/21165?Ab2Lang=C&Ab2Enc=iso-8859-1 630 631 DTF_1_CONFEXP is the same as DTF_1_PARINIT. It is a typo. The value 632 defined here is the same as the one in <sys/link.h> on Solaris 8. */ 633#define DTF_1_CONFEXP 0x00000002 634 635/* Flag values used in the DT_POSFLAG_1 .dynamic entry. */ 636#define DF_P1_LAZYLOAD 0x00000001 637#define DF_P1_GROUPPERM 0x00000002 638 639/* Flag value in in the DT_FLAGS_1 .dynamic entry. */ 640#define DF_1_NOW 0x00000001 641#define DF_1_GLOBAL 0x00000002 642#define DF_1_GROUP 0x00000004 643#define DF_1_NODELETE 0x00000008 644#define DF_1_LOADFLTR 0x00000010 645#define DF_1_INITFIRST 0x00000020 646#define DF_1_NOOPEN 0x00000040 647#define DF_1_ORIGIN 0x00000080 648#define DF_1_DIRECT 0x00000100 649#define DF_1_TRANS 0x00000200 650#define DF_1_INTERPOSE 0x00000400 651#define DF_1_NODEFLIB 0x00000800 652#define DF_1_NODUMP 0x00001000 653#define DF_1_CONLFAT 0x00002000 654 655/* Flag values for the DT_FLAGS entry. */ 656#define DF_ORIGIN (1 << 0) 657#define DF_SYMBOLIC (1 << 1) 658#define DF_TEXTREL (1 << 2) 659#define DF_BIND_NOW (1 << 3) 660#define DF_STATIC_TLS (1 << 4) 661 662/* These constants are used for the version number of a Elf32_Verdef 663 structure. */ 664 665#define VER_DEF_NONE 0 666#define VER_DEF_CURRENT 1 667 668/* These constants appear in the vd_flags field of a Elf32_Verdef 669 structure. */ 670 671#define VER_FLG_BASE 0x1 672#define VER_FLG_WEAK 0x2 673 674/* These special constants can be found in an Elf32_Versym field. */ 675 676#define VER_NDX_LOCAL 0 677#define VER_NDX_GLOBAL 1 678 679/* These constants are used for the version number of a Elf32_Verneed 680 structure. */ 681 682#define VER_NEED_NONE 0 683#define VER_NEED_CURRENT 1 684 685/* This flag appears in a Versym structure. It means that the symbol 686 is hidden, and is only visible with an explicit version number. 687 This is a GNU extension. */ 688 689#define VERSYM_HIDDEN 0x8000 690 691/* This is the mask for the rest of the Versym information. */ 692 693#define VERSYM_VERSION 0x7fff 694 695/* This is a special token which appears as part of a symbol name. It 696 indictes that the rest of the name is actually the name of a 697 version node, and is not part of the actual name. This is a GNU 698 extension. For example, the symbol name `stat@ver2' is taken to 699 mean the symbol `stat' in version `ver2'. */ 700 701#define ELF_VER_CHR '@' 702 703/* Possible values for si_boundto. */ 704 705#define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */ 706#define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */ 707#define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */ 708 709/* Possible bitmasks for si_flags. */ 710 711#define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */ 712#define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */ 713#define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */ 714#define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy loaded */ 715 716/* Syminfo version values. */ 717 718#define SYMINFO_NONE 0 719#define SYMINFO_CURRENT 1 720#define SYMINFO_NUM 2 721 722/* Section Group Flags. */ 723 724#define GRP_COMDAT 0x1 /* A COMDAT group */ 725 726/* Auxv a_type values. */ 727 728#define AT_NULL 0 /* End of vector */ 729#define AT_IGNORE 1 /* Entry should be ignored */ 730#define AT_EXECFD 2 /* File descriptor of program */ 731#define AT_PHDR 3 /* Program headers for program */ 732#define AT_PHENT 4 /* Size of program header entry */ 733#define AT_PHNUM 5 /* Number of program headers */ 734#define AT_PAGESZ 6 /* System page size */ 735#define AT_BASE 7 /* Base address of interpreter */ 736#define AT_FLAGS 8 /* Flags */ 737#define AT_ENTRY 9 /* Entry point of program */ 738#define AT_NOTELF 10 /* Program is not ELF */ 739#define AT_UID 11 /* Real uid */ 740#define AT_EUID 12 /* Effective uid */ 741#define AT_GID 13 /* Real gid */ 742#define AT_EGID 14 /* Effective gid */ 743#define AT_CLKTCK 17 /* Frequency of times() */ 744#define AT_PLATFORM 15 /* String identifying platform. */ 745#define AT_HWCAP 16 /* Machine dependent hints about 746 processor capabilities. */ 747#define AT_FPUCW 18 /* Used FPU control word. */ 748#define AT_DCACHEBSIZE 19 /* Data cache block size. */ 749#define AT_ICACHEBSIZE 20 /* Instruction cache block size. */ 750#define AT_UCACHEBSIZE 21 /* Unified cache block size. */ 751#define AT_IGNOREPPC 22 /* Entry should be ignored */ 752#define AT_SECURE 23 /* Boolean, was exec setuid-like? */ 753/* Pointer to the global system page used for system calls and other 754 nice things. */ 755#define AT_SYSINFO 32 756#define AT_SYSINFO_EHDR 33 /* Pointer to ELF header of system-supplied DSO. */ 757 758#define AT_SUN_UID 2000 /* Effective user ID. */ 759#define AT_SUN_RUID 2001 /* Real user ID. */ 760#define AT_SUN_GID 2002 /* Effective group ID. */ 761#define AT_SUN_RGID 2003 /* Real group ID. */ 762#define AT_SUN_LDELF 2004 /* Dynamic linker's ELF header. */ 763#define AT_SUN_LDSHDR 2005 /* Dynamic linker's section headers. */ 764#define AT_SUN_LDNAME 2006 /* String giving name of dynamic linker. */ 765#define AT_SUN_LPAGESZ 2007 /* Large pagesize. */ 766#define AT_SUN_PLATFORM 2008 /* Platform name string. */ 767#define AT_SUN_HWCAP 2009 /* Machine dependent hints about 768 processor capabilities. */ 769#define AT_SUN_IFLUSH 2010 /* Should flush icache? */ 770#define AT_SUN_CPU 2011 /* CPU name string. */ 771#define AT_SUN_EMUL_ENTRY 2012 /* COFF entry point address. */ 772#define AT_SUN_EMUL_EXECFD 2013 /* COFF executable file descriptor. */ 773#define AT_SUN_EXECNAME 2014 /* Canonicalized file name given to execve. */ 774#define AT_SUN_MMU 2015 /* String for name of MMU module. */ 775#define AT_SUN_LDDATA 2016 /* Dynamic linker's data segment address. */ 776 777 778#endif /* _ELF_COMMON_H */ 779