include/elf/common.h

   1 /* ELF support for BFD.
   2    Copyright (C) 1991,92,93,94,95,96,97,98,1999 Free Software Foundation, Inc.
   3
   4    Written by Fred Fish @ Cygnus Support, from information published
   5    in "UNIX System V Release 4, Programmers Guide: ANSI C and
   6    Programming Support Tools".
   7
   8 This file is part of BFD, the Binary File Descriptor library.
   9
  10 This program is free software; you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation; either version 2 of the License, or
  13 (at your option) any later version.
  14
  15 This program is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with this program; if not, write to the Free Software
  22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  23
  24
  25 /* This file is part of ELF support for BFD, and contains the portions
  26    that are common to both the internal and external representations.
  27    For example, ELFMAG0 is the byte 0x7F in both the internal (in-memory)
  28    and external (in-file) representations. */
  29
  30 #ifndef _ELF_COMMON_H
  31 #define _ELF_COMMON_H
  32
  33 /* Fields in e_ident[] */
  34
  35 #define EI_MAG0         0       /* File identification byte 0 index */
  36 #define ELFMAG0         0x7F    /* Magic number byte 0 */
  37
  38 #define EI_MAG1         1       /* File identification byte 1 index */
  39 #define ELFMAG1         'E'     /* Magic number byte 1 */
  40
  41 #define EI_MAG2         2       /* File identification byte 2 index */
  42 #define ELFMAG2         'L'     /* Magic number byte 2 */
  43
  44 #define EI_MAG3         3       /* File identification byte 3 index */
  45 #define ELFMAG3         'F'     /* Magic number byte 3 */
  46
  47 #define EI_CLASS        4       /* File class */
  48 #define ELFCLASSNONE    0       /* Invalid class */
  49 #define ELFCLASS32      1       /* 32-bit objects */
  50 #define ELFCLASS64      2       /* 64-bit objects */
  51
  52 #define EI_DATA         5       /* Data encoding */
  53 #define ELFDATANONE     0       /* Invalid data encoding */
  54 #define ELFDATA2LSB     1       /* 2's complement, little endian */
  55 #define ELFDATA2MSB     2       /* 2's complement, big endian */
  56
  57 #define EI_VERSION      6       /* File version */
  58
  59 #define EI_OSABI        7       /* Operating System/ABI indication */
  60 #define ELFOSABI_SYSV   0       /* UNIX System V ABI */
  61 #define ELFOSABI_HPUX   1       /* HP-UX operating system */
  62 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
  63 #define ELFOSABI_ARM   97               /* ARM */
  64
  65 #define EI_ABIVERSION   8       /* ABI version */
  66
  67 #define EI_PAD          9       /* Start of padding bytes */
  68
  69
  70 /* Values for e_type, which identifies the object file type */
  71
  72 #define ET_NONE         0       /* No file type */
  73 #define ET_REL          1       /* Relocatable file */
  74 #define ET_EXEC         2       /* Executable file */
  75 #define ET_DYN          3       /* Shared object file */
  76 #define ET_CORE         4       /* Core file */
  77 #define ET_LOOS         0xFE00  /* Operating system-specific */
  78 #define ET_HIOS         0xFEFF  /* Operating system-specific */
  79 #define ET_LOPROC       0xFF00  /* Processor-specific */
  80 #define ET_HIPROC       0xFFFF  /* Processor-specific */
  81
  82 /* Values for e_machine, which identifies the architecture */
  83
  84 #define EM_NONE         0       /* No machine */
  85 #define EM_M32          1       /* AT&T WE 32100 */
  86 #define EM_SPARC        2       /* SUN SPARC */
  87 #define EM_386          3       /* Intel 80386 */
  88 #define EM_68K          4       /* Motorola m68k family */
  89 #define EM_88K          5       /* Motorola m88k family */
  90 #define EM_486          6       /* Intel 80486 */
  91 #define EM_860          7       /* Intel 80860 */
  92 #define EM_MIPS         8       /* MIPS R3000 (officially, big-endian only) */
  93 #define EM_S370         9       /* IBM System/370 */
  94 #define EM_MIPS_RS4_BE 10       /* MIPS R4000 big-endian */ /* Depreciated */
  95 #define EM_MIPS_RS3_LE 10       /* MIPS R3000 little-endian (Oct 4 1999 Draft)*/ /* Depreciated */
  96
  97 #define EM_PARISC      15       /* HPPA */
  98
  99 #define EM_VPP550      17       /* Fujitsu VPP500 */
 100 #define EM_SPARC32PLUS 18       /* Sun's "v8plus" */
 101 #define EM_960         19       /* Intel 80960 */
 102 #define EM_PPC         20       /* PowerPC */
 103 #define EM_PPC64       21       /* 64-bit PowerPC */
 104
 105 #define EM_V800        36       /* NEC V800 series */
 106 #define EM_FR20        37       /* Fujitsu FR20 */
 107 #define EM_RH32        38       /* TRW RH32 */
 108 #define EM_MCORE       39       /* Motorola M*Core */ /* May also be taken by Fujitsu MMA */
 109 #define EM_RCE         39       /* Old name for MCore */
 110 #define EM_ARM         40       /* ARM */
 111 #define EM_OLD_ALPHA   41       /* Digital Alpha */
 112 #define EM_SH          42       /* Hitachi SH */
 113 #define EM_SPARCV9     43       /* SPARC v9 64-bit */
 114 #define EM_TRICORE     44       /* Siemens Tricore embedded processor */
 115 #define EM_ARC         45       /* Argonaut RISC Core, Argonaut Technologies Inc. */
 116 #define EM_H8_300      46       /* Hitachi H8/300 */
 117 #define EM_H8_300H     47       /* Hitachi H8/300H */
 118 #define EM_H8S         48       /* Hitachi H8S */
 119 #define EM_H8_500      49       /* Hitachi H8/500 */
 120 #define EM_IA_64       50       /* Intel IA-64 Processor */
 121 #define EM_MIPS_X      51       /* Stanford MIPS-X */
 122 #define EM_COLDFIRE    52       /* Motorola Coldfire */
 123 #define EM_68HC12      53       /* Motorola M68HC12 */
 124 #define EM_MMA         54       /* Fujitsu Multimedia Accelerator */
 125 #define EM_PCP         55       /* Siemens PCP */
 126 #define EM_NCPU        56       /* Sony nCPU embedded RISC processor */
 127 #define EM_NDR1        57       /* Denso NDR1 microprocesspr */
 128 #define EM_STARCORE    58       /* Motorola Star*Core processor */
 129 #define EM_ME16        59       /* Toyota ME16 processor */
 130 #define EM_ST100       60       /* STMicroelectronics ST100 processor */
 131 #define EM_TINYJ       61       /* Advanced Logic Corp. TinyJ embedded processor */
 132
 133 #define EM_FX66        66       /* Siemens FX66 microcontroller */
 134 #define EM_ST9PLUS     67       /* STMicroelectronics ST9+ 8/16 bit microcontroller */
 135 #define EM_ST7         68       /* STMicroelectronics ST7 8-bit microcontroller */
 136 #define EM_68HC16      69       /* Motorola MC68HC16 Microcontroller */
 137 #define EM_68HC11      70       /* Motorola MC68HC11 Microcontroller */
 138 #define EM_68HC08      71       /* Motorola MC68HC08 Microcontroller */
 139 #define EM_68HC05      72       /* Motorola MC68HC05 Microcontroller */
 140 #define EM_SVX         73       /* Silicon Graphics SVx */
 141 #define EM_ST19        74       /* STMicroelectronics ST19 8-bit microcontroller */
 142 #define EM_VAX         75       /* Digital VAX */
 143
 144 #define EM_PJ          99       /* picoJava */
 145
 146 /* If it is necessary to assign new unofficial EM_* values, please pick large
 147    random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision
 148    with official or non-GNU unofficial values.
 149
 150    NOTE: Do not just increment the most recent number by one.
 151    Somebody else somewhere will do exactly the same thing, and you
 152    will have a collision.  Instead, pick a random number.  */
 153
 154 /* Cygnus PowerPC ELF backend.  Written in the absence of an ABI.  */
 155 #define EM_CYGNUS_POWERPC 0x9025
 156
 157 /* Old version of Sparc v9, from before the ABI; this should be
 158    removed shortly.  */
 159 #define EM_OLD_SPARCV9  11
 160
 161 /* Old version of PowerPC, this should be removed shortly. */
 162 #define EM_PPC_OLD      17
 163
 164 /* Cygnus ARC ELF backend.  Written in the absence of an ABI.  */
 165 #define EM_CYGNUS_ARC 0x9040
 166
 167 /* Cygnus M32R ELF backend.  Written in the absence of an ABI.  */
 168 #define EM_CYGNUS_M32R 0x9041
 169
 170 /* Alpha backend magic number.  Written in the absence of an ABI.  */
 171 #define EM_ALPHA        0x9026
 172
 173 /* D10V backend magic number.  Written in the absence of an ABI.  */
 174 #define EM_CYGNUS_D10V  0x7650
 175
 176 /* D30V backend magic number.  Written in the absence of an ABI.  */
 177 #define EM_CYGNUS_D30V  0x7676
 178
 179 /* V850 backend magic number.  Written in the absense of an ABI.  */
 180 #define EM_CYGNUS_V850  0x9080
 181
 182 /* mn10200 and mn10300 backend magic numbers.
 183    Written in the absense of an ABI.  */
 184 #define EM_CYGNUS_MN10200       0xdead
 185 #define EM_CYGNUS_MN10300       0xbeef
 186
 187 /* FR30 magic number - no EABI available.  */
 188 #define EM_CYGNUS_FR30          0x3330
 189
 190 /* See the above comment before you add a new EM_* value here.  */
 191
 192 /* Values for e_version */
 193
 194 #define EV_NONE         0               /* Invalid ELF version */
 195 #define EV_CURRENT      1               /* Current version */
 196
 197 /* Values for program header, p_type field */
 198
 199 #define PT_NULL         0               /* Program header table entry unused */
 200 #define PT_LOAD         1               /* Loadable program segment */
 201 #define PT_DYNAMIC      2               /* Dynamic linking information */
 202 #define PT_INTERP       3               /* Program interpreter */
 203 #define PT_NOTE         4               /* Auxiliary information */
 204 #define PT_SHLIB        5               /* Reserved, unspecified semantics */
 205 #define PT_PHDR         6               /* Entry for header table itself */
 206 #define PT_LOOS         0x60000000      /* OS-specific */
 207 #define PT_HIOS         0x6fffffff      /* OS-specific */
 208 #define PT_LOPROC       0x70000000      /* Processor-specific */
 209 #define PT_HIPROC       0x7FFFFFFF      /* Processor-specific */
 210
 211 /* Program segment permissions, in program header p_flags field */
 212
 213 #define PF_X            (1 << 0)        /* Segment is executable */
 214 #define PF_W            (1 << 1)        /* Segment is writable */
 215 #define PF_R            (1 << 2)        /* Segment is readable */
 216 /* #define PF_MASKOS    0x0F000000    *//* OS-specific reserved bits */
 217 #define PF_MASKOS       0x0FF00000      /* New value, Oct 4, 1999 Draft */
 218 #define PF_MASKPROC     0xF0000000      /* Processor-specific reserved bits */
 219
 220 /* Values for section header, sh_type field */
 221
 222 #define SHT_NULL        0               /* Section header table entry unused */
 223 #define SHT_PROGBITS    1               /* Program specific (private) data */
 224 #define SHT_SYMTAB      2               /* Link editing symbol table */
 225 #define SHT_STRTAB      3               /* A string table */
 226 #define SHT_RELA        4               /* Relocation entries with addends */
 227 #define SHT_HASH        5               /* A symbol hash table */
 228 #define SHT_DYNAMIC     6               /* Information for dynamic linking */
 229 #define SHT_NOTE        7               /* Information that marks file */
 230 #define SHT_NOBITS      8               /* Section occupies no space in file */
 231 #define SHT_REL         9               /* Relocation entries, no addends */
 232 #define SHT_SHLIB       10              /* Reserved, unspecified semantics */
 233 #define SHT_DYNSYM      11              /* Dynamic linking symbol table */
 234
 235 #define SHT_INIT_ARRAY  14              /* Array of pointers to init functions */
 236 #define SHT_FINI_ARRAY  15              /* Array of pointers to finish functions */
 237 #define SHT_PREINIT_ARRAY 16            /* Array of pointers to pre-init functions */
 238
 239 #define SHT_LOOS        0x60000000      /* Operating system specific semantics, lo */
 240 #define SHT_HIOS        0x6fffffff      /* Operating system specific semantics, hi */
 241
 242 /* The next three section types are defined by Solaris, and are named
 243    SHT_SUNW*.  We use them in GNU code, so we also define SHT_GNU*
 244    versions.  */
 245 #define SHT_SUNW_verdef 0x6ffffffd      /* Versions defined by file */
 246 #define SHT_SUNW_verneed 0x6ffffffe     /* Versions needed by file */
 247 #define SHT_SUNW_versym 0x6fffffff      /* Symbol versions */
 248
 249 #define SHT_GNU_verdef  SHT_SUNW_verdef
 250 #define SHT_GNU_verneed SHT_SUNW_verneed
 251 #define SHT_GNU_versym  SHT_SUNW_versym
 252
 253 #define SHT_LOPROC      0x70000000      /* Processor-specific semantics, lo */
 254 #define SHT_HIPROC      0x7FFFFFFF      /* Processor-specific semantics, hi */
 255 #define SHT_LOUSER      0x80000000      /* Application-specific semantics */
 256 /* #define SHT_HIUSER   0x8FFFFFFF    *//* Application-specific semantics */
 257 #define SHT_HIUSER      0xFFFFFFFF      /* New value, defined in Oct 4, 1999 Draft */
 258
 259 /* Values for section header, sh_flags field */
 260
 261 #define SHF_WRITE       (1 << 0)        /* Writable data during execution */
 262 #define SHF_ALLOC       (1 << 1)        /* Occupies memory during execution */
 263 #define SHF_EXECINSTR   (1 << 2)        /* Executable machine instructions */
 264 #define SHF_MERGE       (1 << 4)        /* Data in this section can be merged */
 265 #define SHF_STRINGS     (1 << 5)        /* Contains null terminated character strings */
 266 #define SHF_INFO_LINK   (1 << 6)        /* sh_info holds section header table index */
 267 #define SHF_LINK_ORDER  (1 << 7)        /* Preserve section ordering when linking */
 268 #define SHF_OS_NONCONFORMING (1 << 8)   /* OS specifci processing required */
 269
 270 /* #define SHF_MASKOS   0x0F000000    *//* OS-specific semantics */
 271 #define SHF_MASKOS      0x0FF00000      /* New value, Oct 4, 1999 Draft */
 272 #define SHF_MASKPROC    0xF0000000      /* Processor-specific semantics */
 273
 274 /* Values of note segment descriptor types for core files. */
 275
 276 #define NT_PRSTATUS     1               /* Contains copy of prstatus struct */
 277 #define NT_FPREGSET     2               /* Contains copy of fpregset struct */
 278 #define NT_PRPSINFO     3               /* Contains copy of prpsinfo struct */
 279 #define NT_TASKSTRUCT   4               /* Contains copy of task struct */
 280 #define NT_PRXFPREG     0x46e62b7f      /* Contains a user_xfpregs_struct; */
 281                                         /*   note name must be "LINUX".  */
 282
 283 /* Note segments for core files on dir-style procfs systems. */
 284
 285 #define NT_PSTATUS      10              /* Has a struct pstatus */
 286 #define NT_FPREGS       12              /* Has a struct fpregset */
 287 #define NT_PSINFO       13              /* Has a struct psinfo */
 288 #define NT_LWPSTATUS    16              /* Has a struct lwpstatus_t */
 289 #define NT_LWPSINFO     17              /* Has a struct lwpsinfo_t */
 290 #define NT_WIN32PSTATUS 18              /* Has a struct win32_pstatus */
 291
 292 /* Values of note segment descriptor types for object files.  */
 293 /* (Only for hppa right now.  Should this be moved elsewhere?)  */
 294
 295 #define NT_VERSION      1               /* Contains a version string.  */
 296
 297 /* These three macros disassemble and assemble a symbol table st_info field,
 298    which contains the symbol binding and symbol type.  The STB_ and STT_
 299    defines identify the binding and type. */
 300
 301 #define ELF_ST_BIND(val)                (((unsigned int)(val)) >> 4)
 302 #define ELF_ST_TYPE(val)                ((val) & 0xF)
 303 #define ELF_ST_INFO(bind,type)          (((bind) << 4) + ((type) & 0xF))
 304
 305 /* The 64bit and 32bit versions of these macros are identical, but
 306    the ELF spec defines them, so here they are.  */
 307 #define ELF32_ST_BIND  ELF_ST_BIND
 308 #define ELF32_ST_TYPE  ELF_ST_TYPE
 309 #define ELF32_ST_INFO  ELF_ST_INFO
 310 #define ELF64_ST_BIND  ELF_ST_BIND
 311 #define ELF64_ST_TYPE  ELF_ST_TYPE
 312 #define ELF64_ST_INFO  ELF_ST_INFO
 313
 314 /* These two macros disassemble and assemble a symbol's visibility into
 315    the st_other field.  The STV_ defines specificy the actual visibility.  */
 316
 317 #define ELF_ST_VISIBILITY(v)            ((v) & 0x3)
 318 #define ELF_ST_OTHER(o)                 ((o) & ~0x3)
 319
 320 #define ELF32_ST_VISIBILITY  ELF_ST_VISIBILITY
 321 #define ELF32_ST_OTHER       ELF_ST_OTHER
 322 #define ELF64_ST_VISIBILITY  ELF_ST_VISIBILITY
 323 #define ELF64_ST_OTHER       ELF_ST_OTHER
 324
 325
 326 #define STN_UNDEF       0               /* undefined symbol index */
 327
 328 #define STB_LOCAL       0               /* Symbol not visible outside obj */
 329 #define STB_GLOBAL      1               /* Symbol visible outside obj */
 330 #define STB_WEAK        2               /* Like globals, lower precedence */
 331 #define STB_LOOS        10              /* OS-specific semantics */
 332 #define STB_HIOS        12              /* OS-specific semantics */
 333 #define STB_LOPROC      13              /* Application-specific semantics */
 334 #define STB_HIPROC      15              /* Application-specific semantics */
 335
 336 #define STT_NOTYPE      0               /* Symbol type is unspecified */
 337 #define STT_OBJECT      1               /* Symbol is a data object */
 338 #define STT_FUNC        2               /* Symbol is a code object */
 339 #define STT_SECTION     3               /* Symbol associated with a section */
 340 #define STT_FILE        4               /* Symbol gives a file name */
 341 #define STT_COMMON      5               /* An uninitialised common block */
 342 #define STT_LOOS        10              /* OS-specific semantics */
 343 #define STT_HIOS        12              /* OS-specific semantics */
 344 #define STT_LOPROC      13              /* Application-specific semantics */
 345 #define STT_HIPROC      15              /* Application-specific semantics */
 346
 347 /* Special section indices, which may show up in st_shndx fields, among
 348    other places. */
 349
 350 #define SHN_UNDEF       0               /* Undefined section reference */
 351 #define SHN_LORESERVE   0xFF00          /* Begin range of reserved indices */
 352 #define SHN_LOPROC      0xFF00          /* Begin range of appl-specific */
 353 #define SHN_HIPROC      0xFF1F          /* End range of appl-specific */
 354 #define SHN_LOOS        0xFF20          /* OS specific semantics, lo */
 355 #define SHN_HIOS        0xFF3F          /* OS specific semantics, hi */
 356 #define SHN_ABS         0xFFF1          /* Associated symbol is absolute */
 357 #define SHN_COMMON      0xFFF2          /* Associated symbol is in common */
 358 #define SHN_HIRESERVE   0xFFFF          /* End range of reserved indices */
 359
 360 /* The following constants control how a symbol may be accessed once it has
 361    become part of an executable or shared library.  */
 362
 363 #define STV_DEFAULT     0               /* Visibility is specified by binding type */
 364 #define STV_INTERNAL    1               /* OS specific version of STV_HIDDEN */
 365 #define STV_HIDDEN      2               /* Can only be seen inside currect component */
 366 #define STV_PROTECTED   3               /* Treat as STB_LOCAL inside current component */
 367
 368
 369 /* relocation info handling macros */
 370
 371 #define ELF32_R_SYM(i)          ((i) >> 8)
 372 #define ELF32_R_TYPE(i)         ((i) & 0xff)
 373 #define ELF32_R_INFO(s,t)       (((s) << 8) + ((t) & 0xff))
 374
 375 #define ELF64_R_SYM(i)          ((i) >> 32)
 376 #define ELF64_R_TYPE(i)         ((i) & 0xffffffff)
 377 #define ELF64_R_INFO(s,t)       (((bfd_vma) (s) << 32) + (bfd_vma) (t))
 378
 379 /* Dynamic section tags */
 380
 381 #define DT_NULL         0
 382 #define DT_NEEDED       1
 383 #define DT_PLTRELSZ     2
 384 #define DT_PLTGOT       3
 385 #define DT_HASH         4
 386 #define DT_STRTAB       5
 387 #define DT_SYMTAB       6
 388 #define DT_RELA         7
 389 #define DT_RELASZ       8
 390 #define DT_RELAENT      9
 391 #define DT_STRSZ        10
 392 #define DT_SYMENT       11
 393 #define DT_INIT         12
 394 #define DT_FINI         13
 395 #define DT_SONAME       14
 396 #define DT_RPATH        15
 397 #define DT_SYMBOLIC     16
 398 #define DT_REL          17
 399 #define DT_RELSZ        18
 400 #define DT_RELENT       19
 401 #define DT_PLTREL       20
 402 #define DT_DEBUG        21
 403 #define DT_TEXTREL      22
 404 #define DT_JMPREL       23
 405 #define DT_BIND_NOW     24
 406 #define DT_INIT_ARRAY   25
 407 #define DT_FINI_ARRAY   26
 408 #define DT_INIT_ARRAYSZ 27
 409 #define DT_FINI_ARRAYSZ 28
 410 #define DT_RUNPATH      29
 411 #define DT_FLAGS        30
 412
 413 #define DT_ENCODING     32
 414 #define DT_PREINIT_ARRAY   32
 415 #define DT_PREINIT_ARRAYSZ 33
 416
 417 /* Note, the Oct 4, 1999 draft of the ELF ABI changed the values
 418    for DT_LOOS and DT_HIOS.  Some implementations however, use
 419    values outside of the new range (see below).  */
 420 #define OLD_DT_LOOS     0x60000000
 421 #define DT_LOOS         0x6000000d
 422 #define DT_HIOS         0x6fff0000
 423 #define OLD_DT_HIOS     0x6fffffff
 424
 425 #define DT_LOPROC       0x70000000
 426 #define DT_HIPROC       0x7fffffff
 427
 428 /* The next four dynamic tags are used on Solaris.  We support them
 429    everywhere.  Note these values lie outside of the (new) range for
 430    OS specific values.  This is a deliberate special case and we
 431    maintain it for backwards compatability.  */
 432 #define DT_VALRNGLO     0x6ffffd00
 433 #define DT_PLTPADSZ     0x6ffffdf9
 434 #define DT_MOVEENT      0x6ffffdfa
 435 #define DT_MOVESZ       0x6ffffdfb
 436 #define DT_FEATURE_1    0x6ffffdfc
 437 #define DT_POSFLAG_1    0x6ffffdfd
 438 #define DT_SYMINSZ      0x6ffffdfe
 439 #define DT_SYMINENT     0x6ffffdff
 440 #define DT_VALRNGHI     0x6ffffdff
 441
 442 #define DT_ADDRRNGLO    0x6ffffe00
 443 #define DT_SYMINFO      0x6ffffeff
 444 #define DT_ADDRRNGHI    0x6ffffeff
 445
 446 #define DT_RELACOUNT    0x6ffffff9
 447 #define DT_RELCOUNT     0x6ffffffa
 448 #define DT_FLAGS_1      0x6ffffffb
 449 #define DT_VERDEF       0x6ffffffc
 450 #define DT_VERDEFNUM    0x6ffffffd
 451 #define DT_VERNEED      0x6ffffffe
 452 #define DT_VERNEEDNUM   0x6fffffff
 453
 454 /* This tag is a GNU extension to the Solaris version scheme.  */
 455 #define DT_VERSYM       0x6ffffff0
 456
 457 #define DT_LOPROC       0x70000000
 458 #define DT_HIPROC       0x7fffffff
 459
 460 /* These section tags are used on Solaris.  We support them
 461    everywhere, and hope they do not conflict.  */
 462
 463 #define DT_AUXILIARY    0x7ffffffd
 464 #define DT_USED         0x7ffffffe
 465 #define DT_FILTER       0x7fffffff
 466
 467 /* Values used in DT_FEATURE_1 .dynamic entry.  */
 468 #define DTF_1_PARINIT   0x00000001
 469
 470 /* Flag values used in the DT_POSFLAG_1 .dynamic entry.  */
 471 #define DF_P1_LAZYLOAD  0x00000001
 472 #define DF_P1_GROUPPERM 0x00000002
 473
 474 /* Flag value in in the DT_1_FLAGS .dynamic entry.  */
 475 #define DF_1_NOW        0x00000001
 476 #define DF_1_GLOBAL     0x00000002
 477 #define DF_1_GROUP      0x00000004
 478 #define DF_1_NODELETE   0x00000008
 479 #define DF_1_LOADFLTR   0x00000010
 480 #define DF_1_INITFIRST  0x00000020
 481 #define DF_1_NOOPEN     0x00000040
 482 #define DF_1_ORIGIN     0x00000080
 483 #define DF_1_DIRECT     0x00000100
 484 #define DF_1_TRANS      0x00000200
 485 #define DF_1_INTERPOSE  0x00000400
 486
 487 /* Flag values for the DT_FLAGS entry.  */
 488 #define DF_ORIGIN       (1 << 0)
 489 #define DF_SYMBOLIC     (1 << 1)
 490 #define DF_TEXTREL      (1 << 2)
 491 #define DF_BIND_NOW     (1 << 3)
 492
 493 /* These constants are used for the version number of a Elf32_Verdef
 494    structure.  */
 495
 496 #define VER_DEF_NONE            0
 497 #define VER_DEF_CURRENT         1
 498
 499 /* These constants appear in the vd_flags field of a Elf32_Verdef
 500    structure.  */
 501
 502 #define VER_FLG_BASE            0x1
 503 #define VER_FLG_WEAK            0x2
 504
 505 /* These special constants can be found in an Elf32_Versym field.  */
 506
 507 #define VER_NDX_LOCAL           0
 508 #define VER_NDX_GLOBAL          1
 509
 510 /* These constants are used for the version number of a Elf32_Verneed
 511    structure.  */
 512
 513 #define VER_NEED_NONE           0
 514 #define VER_NEED_CURRENT        1
 515
 516 /* This flag appears in a Versym structure.  It means that the symbol
 517    is hidden, and is only visible with an explicit version number.
 518    This is a GNU extension.  */
 519
 520 #define VERSYM_HIDDEN           0x8000
 521
 522 /* This is the mask for the rest of the Versym information.  */
 523
 524 #define VERSYM_VERSION          0x7fff
 525
 526 /* This is a special token which appears as part of a symbol name.  It
 527    indictes that the rest of the name is actually the name of a
 528    version node, and is not part of the actual name.  This is a GNU
 529    extension.  For example, the symbol name `stat@ver2' is taken to
 530    mean the symbol `stat' in version `ver2'.  */
 531
 532 #define ELF_VER_CHR     '@'
 533
 534 /* Possible values for si_boundto.  */
 535 #define SYMINFO_BT_SELF         0xffff  /* Symbol bound to self */
 536 #define SYMINFO_BT_PARENT       0xfffe  /* Symbol bound to parent */
 537 #define SYMINFO_BT_LOWRESERVE   0xff00  /* Beginning of reserved entries */
 538
 539 /* Possible bitmasks for si_flags.  */
 540 #define SYMINFO_FLG_DIRECT      0x0001  /* Direct bound symbol */
 541 #define SYMINFO_FLG_PASSTHRU    0x0002  /* Pass-thru symbol for translator */
 542 #define SYMINFO_FLG_COPY        0x0004  /* Symbol is a copy-reloc */
 543 #define SYMINFO_FLG_LAZYLOAD    0x0008  /* Symbol bound to object to be lazy
 544                                            loaded */
 545 /* Syminfo version values.  */
 546 #define SYMINFO_NONE            0
 547 #define SYMINFO_CURRENT         1
 548 #define SYMINFO_NUM             2
 549
 550 #endif /* _ELF_COMMON_H */