include/elf/common.h

   1 /* ELF support for BFD.
   2    Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000
   3    Free Software Foundation, Inc.
   4
   5    Written by Fred Fish @ Cygnus Support, from information published
   6    in "UNIX System V Release 4, Programmers Guide: ANSI C and
   7    Programming Support Tools".
   8
   9 This file is part of BFD, the Binary File Descriptor library.
  10
  11 This program is free software; you can redistribute it and/or modify
  12 it under the terms of the GNU General Public License as published by
  13 the Free Software Foundation; either version 2 of the License, or
  14 (at your option) any later version.
  15
  16 This program is distributed in the hope that it will be useful,
  17 but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 GNU General Public License for more details.
  20
  21 You should have received a copy of the GNU General Public License
  22 along with this program; if not, write to the Free Software
  23 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  24
  25
  26 /* This file is part of ELF support for BFD, and contains the portions
  27    that are common to both the internal and external representations.
  28    For example, ELFMAG0 is the byte 0x7F in both the internal (in-memory)
  29    and external (in-file) representations. */
  30
  31 #ifndef _ELF_COMMON_H
  32 #define _ELF_COMMON_H
  33
  34 /* Fields in e_ident[] */
  35
  36 #define EI_MAG0         0       /* File identification byte 0 index */
  37 #define ELFMAG0         0x7F    /* Magic number byte 0 */
  38
  39 #define EI_MAG1         1       /* File identification byte 1 index */
  40 #define ELFMAG1         'E'     /* Magic number byte 1 */
  41
  42 #define EI_MAG2         2       /* File identification byte 2 index */
  43 #define ELFMAG2         'L'     /* Magic number byte 2 */
  44
  45 #define EI_MAG3         3       /* File identification byte 3 index */
  46 #define ELFMAG3         'F'     /* Magic number byte 3 */
  47
  48 #define EI_CLASS        4       /* File class */
  49 #define ELFCLASSNONE    0       /* Invalid class */
  50 #define ELFCLASS32      1       /* 32-bit objects */
  51 #define ELFCLASS64      2       /* 64-bit objects */
  52
  53 #define EI_DATA         5       /* Data encoding */
  54 #define ELFDATANONE     0       /* Invalid data encoding */
  55 #define ELFDATA2LSB     1       /* 2's complement, little endian */
  56 #define ELFDATA2MSB     2       /* 2's complement, big endian */
  57
  58 #define EI_VERSION      6       /* File version */
  59
  60 #define EI_OSABI        7       /* Operating System/ABI indication */
  61 #define ELFOSABI_SYSV   0       /* UNIX System V ABI */
  62 #define ELFOSABI_HPUX   1       /* HP-UX operating system */
  63 #define ELFOSABI_LINUX  3       /* GNU/Linux */
  64 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
  65 #define ELFOSABI_ARM   97               /* ARM */
  66
  67 #define EI_ABIVERSION   8       /* ABI version */
  68
  69 #define EI_PAD          9       /* Start of padding bytes */
  70
  71
  72 /* Values for e_type, which identifies the object file type */
  73
  74 #define ET_NONE         0       /* No file type */
  75 #define ET_REL          1       /* Relocatable file */
  76 #define ET_EXEC         2       /* Executable file */
  77 #define ET_DYN          3       /* Shared object file */
  78 #define ET_CORE         4       /* Core file */
  79 #define ET_LOOS         0xFE00  /* Operating system-specific */
  80 #define ET_HIOS         0xFEFF  /* Operating system-specific */
  81 #define ET_LOPROC       0xFF00  /* Processor-specific */
  82 #define ET_HIPROC       0xFFFF  /* Processor-specific */
  83
  84 /* Values for e_machine, which identifies the architecture */
  85
  86 #define EM_NONE         0       /* No machine */
  87 #define EM_M32          1       /* AT&T WE 32100 */
  88 #define EM_SPARC        2       /* SUN SPARC */
  89 #define EM_386          3       /* Intel 80386 */
  90 #define EM_68K          4       /* Motorola m68k family */
  91 #define EM_88K          5       /* Motorola m88k family */
  92 #define EM_486          6       /* Intel 80486 */
  93 #define EM_860          7       /* Intel 80860 */
  94 #define EM_MIPS         8       /* MIPS R3000 (officially, big-endian only) */
  95 #define EM_S370         9       /* IBM System/370 */
  96 #define EM_MIPS_RS4_BE 10       /* MIPS R4000 big-endian */ /* Depreciated */
  97 #define EM_MIPS_RS3_LE 10       /* MIPS R3000 little-endian (Oct 4 1999 Draft)*/ /* Depreciated */
  98
  99 #define EM_PARISC      15       /* HPPA */
 100
 101 #define EM_VPP550      17       /* Fujitsu VPP500 */
 102 #define EM_SPARC32PLUS 18       /* Sun's "v8plus" */
 103 #define EM_960         19       /* Intel 80960 */
 104 #define EM_PPC         20       /* PowerPC */
 105 #define EM_PPC64       21       /* 64-bit PowerPC */
 106
 107 #define EM_V800        36       /* NEC V800 series */
 108 #define EM_FR20        37       /* Fujitsu FR20 */
 109 #define EM_RH32        38       /* TRW RH32 */
 110 #define EM_MCORE       39       /* Motorola M*Core */ /* May also be taken by Fujitsu MMA */
 111 #define EM_RCE         39       /* Old name for MCore */
 112 #define EM_ARM         40       /* ARM */
 113 #define EM_OLD_ALPHA   41       /* Digital Alpha */
 114 #define EM_SH          42       /* Hitachi SH */
 115 #define EM_SPARCV9     43       /* SPARC v9 64-bit */
 116 #define EM_TRICORE     44       /* Siemens Tricore embedded processor */
 117 #define EM_ARC         45       /* Argonaut RISC Core, Argonaut Technologies Inc. */
 118 #define EM_H8_300      46       /* Hitachi H8/300 */
 119 #define EM_H8_300H     47       /* Hitachi H8/300H */
 120 #define EM_H8S         48       /* Hitachi H8S */
 121 #define EM_H8_500      49       /* Hitachi H8/500 */
 122 #define EM_IA_64       50       /* Intel IA-64 Processor */
 123 #define EM_MIPS_X      51       /* Stanford MIPS-X */
 124 #define EM_COLDFIRE    52       /* Motorola Coldfire */
 125 #define EM_68HC12      53       /* Motorola M68HC12 */
 126 #define EM_MMA         54       /* Fujitsu Multimedia Accelerator */
 127 #define EM_PCP         55       /* Siemens PCP */
 128 #define EM_NCPU        56       /* Sony nCPU embedded RISC processor */
 129 #define EM_NDR1        57       /* Denso NDR1 microprocesspr */
 130 #define EM_STARCORE    58       /* Motorola Star*Core processor */
 131 #define EM_ME16        59       /* Toyota ME16 processor */
 132 #define EM_ST100       60       /* STMicroelectronics ST100 processor */
 133 #define EM_TINYJ       61       /* Advanced Logic Corp. TinyJ embedded processor */
 134
 135 #define EM_FX66        66       /* Siemens FX66 microcontroller */
 136 #define EM_ST9PLUS     67       /* STMicroelectronics ST9+ 8/16 bit microcontroller */
 137 #define EM_ST7         68       /* STMicroelectronics ST7 8-bit microcontroller */
 138 #define EM_68HC16      69       /* Motorola MC68HC16 Microcontroller */
 139 #define EM_68HC11      70       /* Motorola MC68HC11 Microcontroller */
 140 #define EM_68HC08      71       /* Motorola MC68HC08 Microcontroller */
 141 #define EM_68HC05      72       /* Motorola MC68HC05 Microcontroller */
 142 #define EM_SVX         73       /* Silicon Graphics SVx */
 143 #define EM_ST19        74       /* STMicroelectronics ST19 8-bit microcontroller */
 144 #define EM_VAX         75       /* Digital VAX */
 145
 146 #define EM_PJ          99       /* picoJava */
 147
 148 /* If it is necessary to assign new unofficial EM_* values, please pick large
 149    random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision
 150    with official or non-GNU unofficial values.
 151
 152    NOTE: Do not just increment the most recent number by one.
 153    Somebody else somewhere will do exactly the same thing, and you
 154    will have a collision.  Instead, pick a random number.  */
 155
 156 /* Cygnus PowerPC ELF backend.  Written in the absence of an ABI.  */
 157 #define EM_CYGNUS_POWERPC 0x9025
 158
 159 /* Old version of Sparc v9, from before the ABI; this should be
 160    removed shortly.  */
 161 #define EM_OLD_SPARCV9  11
 162
 163 /* Old version of PowerPC, this should be removed shortly. */
 164 #define EM_PPC_OLD      17
 165
 166 /* Cygnus ARC ELF backend.  Written in the absence of an ABI.  */
 167 #define EM_CYGNUS_ARC 0x9040
 168
 169 /* Cygnus M32R ELF backend.  Written in the absence of an ABI.  */
 170 #define EM_CYGNUS_M32R 0x9041
 171
 172 /* Alpha backend magic number.  Written in the absence of an ABI.  */
 173 #define EM_ALPHA        0x9026
 174
 175 /* D10V backend magic number.  Written in the absence of an ABI.  */
 176 #define EM_CYGNUS_D10V  0x7650
 177
 178 /* D30V backend magic number.  Written in the absence of an ABI.  */
 179 #define EM_CYGNUS_D30V  0x7676
 180
 181 /* V850 backend magic number.  Written in the absense of an ABI.  */
 182 #define EM_CYGNUS_V850  0x9080
 183
 184 /* mn10200 and mn10300 backend magic numbers.
 185    Written in the absense of an ABI.  */
 186 #define EM_CYGNUS_MN10200       0xdead
 187 #define EM_CYGNUS_MN10300       0xbeef
 188
 189 /* FR30 magic number - no EABI available.  */
 190 #define EM_CYGNUS_FR30          0x3330
 191
 192 /* AVR magic number
 193    Written in the absense of an ABI.  */
 194 #define EM_AVR                  0x1057
 195
 196 /* See the above comment before you add a new EM_* value here.  */
 197
 198 /* Values for e_version */
 199
 200 #define EV_NONE         0               /* Invalid ELF version */
 201 #define EV_CURRENT      1               /* Current version */
 202
 203 /* Values for program header, p_type field */
 204
 205 #define PT_NULL         0               /* Program header table entry unused */
 206 #define PT_LOAD         1               /* Loadable program segment */
 207 #define PT_DYNAMIC      2               /* Dynamic linking information */
 208 #define PT_INTERP       3               /* Program interpreter */
 209 #define PT_NOTE         4               /* Auxiliary information */
 210 #define PT_SHLIB        5               /* Reserved, unspecified semantics */
 211 #define PT_PHDR         6               /* Entry for header table itself */
 212 #define PT_LOOS         0x60000000      /* OS-specific */
 213 #define PT_HIOS         0x6fffffff      /* OS-specific */
 214 #define PT_LOPROC       0x70000000      /* Processor-specific */
 215 #define PT_HIPROC       0x7FFFFFFF      /* Processor-specific */
 216
 217 /* Program segment permissions, in program header p_flags field */
 218
 219 #define PF_X            (1 << 0)        /* Segment is executable */
 220 #define PF_W            (1 << 1)        /* Segment is writable */
 221 #define PF_R            (1 << 2)        /* Segment is readable */
 222 /* #define PF_MASKOS    0x0F000000    *//* OS-specific reserved bits */
 223 #define PF_MASKOS       0x0FF00000      /* New value, Oct 4, 1999 Draft */
 224 #define PF_MASKPROC     0xF0000000      /* Processor-specific reserved bits */
 225
 226 /* Values for section header, sh_type field */
 227
 228 #define SHT_NULL        0               /* Section header table entry unused */
 229 #define SHT_PROGBITS    1               /* Program specific (private) data */
 230 #define SHT_SYMTAB      2               /* Link editing symbol table */
 231 #define SHT_STRTAB      3               /* A string table */
 232 #define SHT_RELA        4               /* Relocation entries with addends */
 233 #define SHT_HASH        5               /* A symbol hash table */
 234 #define SHT_DYNAMIC     6               /* Information for dynamic linking */
 235 #define SHT_NOTE        7               /* Information that marks file */
 236 #define SHT_NOBITS      8               /* Section occupies no space in file */
 237 #define SHT_REL         9               /* Relocation entries, no addends */
 238 #define SHT_SHLIB       10              /* Reserved, unspecified semantics */
 239 #define SHT_DYNSYM      11              /* Dynamic linking symbol table */
 240
 241 #define SHT_INIT_ARRAY  14              /* Array of pointers to init functions */
 242 #define SHT_FINI_ARRAY  15              /* Array of pointers to finish functions */
 243 #define SHT_PREINIT_ARRAY 16            /* Array of pointers to pre-init functions */
 244
 245 #define SHT_LOOS        0x60000000      /* Operating system specific semantics, lo */
 246 #define SHT_HIOS        0x6fffffff      /* Operating system specific semantics, hi */
 247
 248 /* The next three section types are defined by Solaris, and are named
 249    SHT_SUNW*.  We use them in GNU code, so we also define SHT_GNU*
 250    versions.  */
 251 #define SHT_SUNW_verdef 0x6ffffffd      /* Versions defined by file */
 252 #define SHT_SUNW_verneed 0x6ffffffe     /* Versions needed by file */
 253 #define SHT_SUNW_versym 0x6fffffff      /* Symbol versions */
 254
 255 #define SHT_GNU_verdef  SHT_SUNW_verdef
 256 #define SHT_GNU_verneed SHT_SUNW_verneed
 257 #define SHT_GNU_versym  SHT_SUNW_versym
 258
 259 #define SHT_LOPROC      0x70000000      /* Processor-specific semantics, lo */
 260 #define SHT_HIPROC      0x7FFFFFFF      /* Processor-specific semantics, hi */
 261 #define SHT_LOUSER      0x80000000      /* Application-specific semantics */
 262 /* #define SHT_HIUSER   0x8FFFFFFF    *//* Application-specific semantics */
 263 #define SHT_HIUSER      0xFFFFFFFF      /* New value, defined in Oct 4, 1999 Draft */
 264
 265 /* Values for section header, sh_flags field */
 266
 267 #define SHF_WRITE       (1 << 0)        /* Writable data during execution */
 268 #define SHF_ALLOC       (1 << 1)        /* Occupies memory during execution */
 269 #define SHF_EXECINSTR   (1 << 2)        /* Executable machine instructions */
 270 #define SHF_MERGE       (1 << 4)        /* Data in this section can be merged */
 271 #define SHF_STRINGS     (1 << 5)        /* Contains null terminated character strings */
 272 #define SHF_INFO_LINK   (1 << 6)        /* sh_info holds section header table index */
 273 #define SHF_LINK_ORDER  (1 << 7)        /* Preserve section ordering when linking */
 274 #define SHF_OS_NONCONFORMING (1 << 8)   /* OS specifci processing required */
 275
 276 /* #define SHF_MASKOS   0x0F000000    *//* OS-specific semantics */
 277 #define SHF_MASKOS      0x0FF00000      /* New value, Oct 4, 1999 Draft */
 278 #define SHF_MASKPROC    0xF0000000      /* Processor-specific semantics */
 279
 280 /* Values of note segment descriptor types for core files. */
 281
 282 #define NT_PRSTATUS     1               /* Contains copy of prstatus struct */
 283 #define NT_FPREGSET     2               /* Contains copy of fpregset struct */
 284 #define NT_PRPSINFO     3               /* Contains copy of prpsinfo struct */
 285 #define NT_TASKSTRUCT   4               /* Contains copy of task struct */
 286 #define NT_PRXFPREG     0x46e62b7f      /* Contains a user_xfpregs_struct; */
 287                                         /*   note name must be "LINUX".  */
 288
 289 /* Note segments for core files on dir-style procfs systems. */
 290
 291 #define NT_PSTATUS      10              /* Has a struct pstatus */
 292 #define NT_FPREGS       12              /* Has a struct fpregset */
 293 #define NT_PSINFO       13              /* Has a struct psinfo */
 294 #define NT_LWPSTATUS    16              /* Has a struct lwpstatus_t */
 295 #define NT_LWPSINFO     17              /* Has a struct lwpsinfo_t */
 296 #define NT_WIN32PSTATUS 18              /* Has a struct win32_pstatus */
 297
 298 /* Values of note segment descriptor types for object files.  */
 299 /* (Only for hppa right now.  Should this be moved elsewhere?)  */
 300
 301 #define NT_VERSION      1               /* Contains a version string.  */
 302
 303 /* These three macros disassemble and assemble a symbol table st_info field,
 304    which contains the symbol binding and symbol type.  The STB_ and STT_
 305    defines identify the binding and type. */
 306
 307 #define ELF_ST_BIND(val)                (((unsigned int)(val)) >> 4)
 308 #define ELF_ST_TYPE(val)                ((val) & 0xF)
 309 #define ELF_ST_INFO(bind,type)          (((bind) << 4) + ((type) & 0xF))
 310
 311 /* The 64bit and 32bit versions of these macros are identical, but
 312    the ELF spec defines them, so here they are.  */
 313 #define ELF32_ST_BIND  ELF_ST_BIND
 314 #define ELF32_ST_TYPE  ELF_ST_TYPE
 315 #define ELF32_ST_INFO  ELF_ST_INFO
 316 #define ELF64_ST_BIND  ELF_ST_BIND
 317 #define ELF64_ST_TYPE  ELF_ST_TYPE
 318 #define ELF64_ST_INFO  ELF_ST_INFO
 319
 320 /* This macro disassembles and assembles a symbol's visibility into
 321    the st_other field.  The STV_ defines specificy the actual visibility.  */
 322
 323 #define ELF_ST_VISIBILITY(v)            ((v) & 0x3)
 324 /* The remaining bits in the st_other field are not currently used.
 325    They should be set to zero.  */
 326
 327 #define ELF32_ST_VISIBILITY  ELF_ST_VISIBILITY
 328 #define ELF64_ST_VISIBILITY  ELF_ST_VISIBILITY
 329
 330
 331 #define STN_UNDEF       0               /* undefined symbol index */
 332
 333 #define STB_LOCAL       0               /* Symbol not visible outside obj */
 334 #define STB_GLOBAL      1               /* Symbol visible outside obj */
 335 #define STB_WEAK        2               /* Like globals, lower precedence */
 336 #define STB_LOOS        10              /* OS-specific semantics */
 337 #define STB_HIOS        12              /* OS-specific semantics */
 338 #define STB_LOPROC      13              /* Application-specific semantics */
 339 #define STB_HIPROC      15              /* Application-specific semantics */
 340
 341 #define STT_NOTYPE      0               /* Symbol type is unspecified */
 342 #define STT_OBJECT      1               /* Symbol is a data object */
 343 #define STT_FUNC        2               /* Symbol is a code object */
 344 #define STT_SECTION     3               /* Symbol associated with a section */
 345 #define STT_FILE        4               /* Symbol gives a file name */
 346 #define STT_COMMON      5               /* An uninitialised common block */
 347 #define STT_LOOS        10              /* OS-specific semantics */
 348 #define STT_HIOS        12              /* OS-specific semantics */
 349 #define STT_LOPROC      13              /* Application-specific semantics */
 350 #define STT_HIPROC      15              /* Application-specific semantics */
 351
 352 /* Special section indices, which may show up in st_shndx fields, among
 353    other places. */
 354
 355 #define SHN_UNDEF       0               /* Undefined section reference */
 356 #define SHN_LORESERVE   0xFF00          /* Begin range of reserved indices */
 357 #define SHN_LOPROC      0xFF00          /* Begin range of appl-specific */
 358 #define SHN_HIPROC      0xFF1F          /* End range of appl-specific */
 359 #define SHN_LOOS        0xFF20          /* OS specific semantics, lo */
 360 #define SHN_HIOS        0xFF3F          /* OS specific semantics, hi */
 361 #define SHN_ABS         0xFFF1          /* Associated symbol is absolute */
 362 #define SHN_COMMON      0xFFF2          /* Associated symbol is in common */
 363 #define SHN_HIRESERVE   0xFFFF          /* End range of reserved indices */
 364
 365 /* The following constants control how a symbol may be accessed once it has
 366    become part of an executable or shared library.  */
 367
 368 #define STV_DEFAULT     0               /* Visibility is specified by binding type */
 369 #define STV_INTERNAL    1               /* OS specific version of STV_HIDDEN */
 370 #define STV_HIDDEN      2               /* Can only be seen inside currect component */
 371 #define STV_PROTECTED   3               /* Treat as STB_LOCAL inside current component */
 372
 373
 374 /* relocation info handling macros */
 375
 376 #define ELF32_R_SYM(i)          ((i) >> 8)
 377 #define ELF32_R_TYPE(i)         ((i) & 0xff)
 378 #define ELF32_R_INFO(s,t)       (((s) << 8) + ((t) & 0xff))
 379
 380 #define ELF64_R_SYM(i)          ((i) >> 32)
 381 #define ELF64_R_TYPE(i)         ((i) & 0xffffffff)
 382 #define ELF64_R_INFO(s,t)       (((bfd_vma) (s) << 32) + (bfd_vma) (t))
 383
 384 /* Dynamic section tags */
 385
 386 #define DT_NULL         0
 387 #define DT_NEEDED       1
 388 #define DT_PLTRELSZ     2
 389 #define DT_PLTGOT       3
 390 #define DT_HASH         4
 391 #define DT_STRTAB       5
 392 #define DT_SYMTAB       6
 393 #define DT_RELA         7
 394 #define DT_RELASZ       8
 395 #define DT_RELAENT      9
 396 #define DT_STRSZ        10
 397 #define DT_SYMENT       11
 398 #define DT_INIT         12
 399 #define DT_FINI         13
 400 #define DT_SONAME       14
 401 #define DT_RPATH        15
 402 #define DT_SYMBOLIC     16
 403 #define DT_REL          17
 404 #define DT_RELSZ        18
 405 #define DT_RELENT       19
 406 #define DT_PLTREL       20
 407 #define DT_DEBUG        21
 408 #define DT_TEXTREL      22
 409 #define DT_JMPREL       23
 410 #define DT_BIND_NOW     24
 411 #define DT_INIT_ARRAY   25
 412 #define DT_FINI_ARRAY   26
 413 #define DT_INIT_ARRAYSZ 27
 414 #define DT_FINI_ARRAYSZ 28
 415 #define DT_RUNPATH      29
 416 #define DT_FLAGS        30
 417
 418 #define DT_ENCODING     32
 419 #define DT_PREINIT_ARRAY   32
 420 #define DT_PREINIT_ARRAYSZ 33
 421
 422 /* Note, the Oct 4, 1999 draft of the ELF ABI changed the values
 423    for DT_LOOS and DT_HIOS.  Some implementations however, use
 424    values outside of the new range (see below).  */
 425 #define OLD_DT_LOOS     0x60000000
 426 #define DT_LOOS         0x6000000d
 427 #define DT_HIOS         0x6fff0000
 428 #define OLD_DT_HIOS     0x6fffffff
 429
 430 #define DT_LOPROC       0x70000000
 431 #define DT_HIPROC       0x7fffffff
 432
 433 /* The next four dynamic tags are used on Solaris.  We support them
 434    everywhere.  Note these values lie outside of the (new) range for
 435    OS specific values.  This is a deliberate special case and we
 436    maintain it for backwards compatability.  */
 437 #define DT_VALRNGLO     0x6ffffd00
 438 #define DT_PLTPADSZ     0x6ffffdf9
 439 #define DT_MOVEENT      0x6ffffdfa
 440 #define DT_MOVESZ       0x6ffffdfb
 441 #define DT_FEATURE_1    0x6ffffdfc
 442 #define DT_POSFLAG_1    0x6ffffdfd
 443 #define DT_SYMINSZ      0x6ffffdfe
 444 #define DT_SYMINENT     0x6ffffdff
 445 #define DT_VALRNGHI     0x6ffffdff
 446
 447 #define DT_ADDRRNGLO    0x6ffffe00
 448 #define DT_SYMINFO      0x6ffffeff
 449 #define DT_ADDRRNGHI    0x6ffffeff
 450
 451 #define DT_RELACOUNT    0x6ffffff9
 452 #define DT_RELCOUNT     0x6ffffffa
 453 #define DT_FLAGS_1      0x6ffffffb
 454 #define DT_VERDEF       0x6ffffffc
 455 #define DT_VERDEFNUM    0x6ffffffd
 456 #define DT_VERNEED      0x6ffffffe
 457 #define DT_VERNEEDNUM   0x6fffffff
 458
 459 /* This tag is a GNU extension to the Solaris version scheme.  */
 460 #define DT_VERSYM       0x6ffffff0
 461
 462 #define DT_LOPROC       0x70000000
 463 #define DT_HIPROC       0x7fffffff
 464
 465 /* These section tags are used on Solaris.  We support them
 466    everywhere, and hope they do not conflict.  */
 467
 468 #define DT_AUXILIARY    0x7ffffffd
 469 #define DT_USED         0x7ffffffe
 470 #define DT_FILTER       0x7fffffff
 471
 472 /* Values used in DT_FEATURE_1 .dynamic entry.  */
 473 #define DTF_1_PARINIT   0x00000001
 474
 475 /* Flag values used in the DT_POSFLAG_1 .dynamic entry.  */
 476 #define DF_P1_LAZYLOAD  0x00000001
 477 #define DF_P1_GROUPPERM 0x00000002
 478
 479 /* Flag value in in the DT_1_FLAGS .dynamic entry.  */
 480 #define DF_1_NOW        0x00000001
 481 #define DF_1_GLOBAL     0x00000002
 482 #define DF_1_GROUP      0x00000004
 483 #define DF_1_NODELETE   0x00000008
 484 #define DF_1_LOADFLTR   0x00000010
 485 #define DF_1_INITFIRST  0x00000020
 486 #define DF_1_NOOPEN     0x00000040
 487 #define DF_1_ORIGIN     0x00000080
 488 #define DF_1_DIRECT     0x00000100
 489 #define DF_1_TRANS      0x00000200
 490 #define DF_1_INTERPOSE  0x00000400
 491
 492 /* Flag values for the DT_FLAGS entry.  */
 493 #define DF_ORIGIN       (1 << 0)
 494 #define DF_SYMBOLIC     (1 << 1)
 495 #define DF_TEXTREL      (1 << 2)
 496 #define DF_BIND_NOW     (1 << 3)
 497
 498 /* These constants are used for the version number of a Elf32_Verdef
 499    structure.  */
 500
 501 #define VER_DEF_NONE            0
 502 #define VER_DEF_CURRENT         1
 503
 504 /* These constants appear in the vd_flags field of a Elf32_Verdef
 505    structure.  */
 506
 507 #define VER_FLG_BASE            0x1
 508 #define VER_FLG_WEAK            0x2
 509
 510 /* These special constants can be found in an Elf32_Versym field.  */
 511
 512 #define VER_NDX_LOCAL           0
 513 #define VER_NDX_GLOBAL          1
 514
 515 /* These constants are used for the version number of a Elf32_Verneed
 516    structure.  */
 517
 518 #define VER_NEED_NONE           0
 519 #define VER_NEED_CURRENT        1
 520
 521 /* This flag appears in a Versym structure.  It means that the symbol
 522    is hidden, and is only visible with an explicit version number.
 523    This is a GNU extension.  */
 524
 525 #define VERSYM_HIDDEN           0x8000
 526
 527 /* This is the mask for the rest of the Versym information.  */
 528
 529 #define VERSYM_VERSION          0x7fff
 530
 531 /* This is a special token which appears as part of a symbol name.  It
 532    indictes that the rest of the name is actually the name of a
 533    version node, and is not part of the actual name.  This is a GNU
 534    extension.  For example, the symbol name `stat@ver2' is taken to
 535    mean the symbol `stat' in version `ver2'.  */
 536
 537 #define ELF_VER_CHR     '@'
 538
 539 /* Possible values for si_boundto.  */
 540 #define SYMINFO_BT_SELF         0xffff  /* Symbol bound to self */
 541 #define SYMINFO_BT_PARENT       0xfffe  /* Symbol bound to parent */
 542 #define SYMINFO_BT_LOWRESERVE   0xff00  /* Beginning of reserved entries */
 543
 544 /* Possible bitmasks for si_flags.  */
 545 #define SYMINFO_FLG_DIRECT      0x0001  /* Direct bound symbol */
 546 #define SYMINFO_FLG_PASSTHRU    0x0002  /* Pass-thru symbol for translator */
 547 #define SYMINFO_FLG_COPY        0x0004  /* Symbol is a copy-reloc */
 548 #define SYMINFO_FLG_LAZYLOAD    0x0008  /* Symbol bound to object to be lazy
 549                                            loaded */
 550 /* Syminfo version values.  */
 551 #define SYMINFO_NONE            0
 552 #define SYMINFO_CURRENT         1
 553 #define SYMINFO_NUM             2
 554
 555 #endif /* _ELF_COMMON_H */