include/elf/common.h

   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_HASH    0x6ffffff6      /* GNU style symbol hash table */
 347 #define SHT_GNU_LIBLIST 0x6ffffff7      /* List of prelink dependencies */
 348
 349 /* The next three section types are defined by Solaris, and are named
 350    SHT_SUNW*.  We use them in GNU code, so we also define SHT_GNU*
 351    versions.  */
 352 #define SHT_SUNW_verdef 0x6ffffffd      /* Versions defined by file */
 353 #define SHT_SUNW_verneed 0x6ffffffe     /* Versions needed by file */
 354 #define SHT_SUNW_versym 0x6fffffff      /* Symbol versions */
 355
 356 #define SHT_GNU_verdef  SHT_SUNW_verdef
 357 #define SHT_GNU_verneed SHT_SUNW_verneed
 358 #define SHT_GNU_versym  SHT_SUNW_versym
 359
 360 #define SHT_LOPROC      0x70000000      /* Processor-specific semantics, lo */
 361 #define SHT_HIPROC      0x7FFFFFFF      /* Processor-specific semantics, hi */
 362 #define SHT_LOUSER      0x80000000      /* Application-specific semantics */
 363 /* #define SHT_HIUSER   0x8FFFFFFF    *//* Application-specific semantics */
 364 #define SHT_HIUSER      0xFFFFFFFF      /* New value, defined in Oct 4, 1999 Draft */
 365
 366 /* Values for section header, sh_flags field.  */
 367
 368 #define SHF_WRITE       (1 << 0)        /* Writable data during execution */
 369 #define SHF_ALLOC       (1 << 1)        /* Occupies memory during execution */
 370 #define SHF_EXECINSTR   (1 << 2)        /* Executable machine instructions */
 371 #define SHF_MERGE       (1 << 4)        /* Data in this section can be merged */
 372 #define SHF_STRINGS     (1 << 5)        /* Contains null terminated character strings */
 373 #define SHF_INFO_LINK   (1 << 6)        /* sh_info holds section header table index */
 374 #define SHF_LINK_ORDER  (1 << 7)        /* Preserve section ordering when linking */
 375 #define SHF_OS_NONCONFORMING (1 << 8)   /* OS specific processing required */
 376 #define SHF_GROUP       (1 << 9)        /* Member of a section group */
 377 #define SHF_TLS         (1 << 10)       /* Thread local storage section */
 378
 379 /* #define SHF_MASKOS   0x0F000000    *//* OS-specific semantics */
 380 #define SHF_MASKOS      0x0FF00000      /* New value, Oct 4, 1999 Draft */
 381 #define SHF_MASKPROC    0xF0000000      /* Processor-specific semantics */
 382
 383 /* Values of note segment descriptor types for core files.  */
 384
 385 #define NT_PRSTATUS     1               /* Contains copy of prstatus struct */
 386 #define NT_FPREGSET     2               /* Contains copy of fpregset struct */
 387 #define NT_PRPSINFO     3               /* Contains copy of prpsinfo struct */
 388 #define NT_TASKSTRUCT   4               /* Contains copy of task struct */
 389 #define NT_AUXV         6               /* Contains copy of Elfxx_auxv_t */
 390 #define NT_PRXFPREG     0x46e62b7f      /* Contains a user_xfpregs_struct; */
 391                                         /*   note name must be "LINUX".  */
 392
 393 /* Note segments for core files on dir-style procfs systems.  */
 394
 395 #define NT_PSTATUS      10              /* Has a struct pstatus */
 396 #define NT_FPREGS       12              /* Has a struct fpregset */
 397 #define NT_PSINFO       13              /* Has a struct psinfo */
 398 #define NT_LWPSTATUS    16              /* Has a struct lwpstatus_t */
 399 #define NT_LWPSINFO     17              /* Has a struct lwpsinfo_t */
 400 #define NT_WIN32PSTATUS 18              /* Has a struct win32_pstatus */
 401
 402
 403 /* Note segments for core files on NetBSD systems.  Note name
 404    must start with "NetBSD-CORE".  */
 405
 406 #define NT_NETBSDCORE_PROCINFO  1       /* Has a struct procinfo */
 407 #define NT_NETBSDCORE_FIRSTMACH 32      /* start of machdep note types */
 408
 409
 410 /* Values of note segment descriptor types for object files.  */
 411
 412 #define NT_VERSION      1               /* Contains a version string.  */
 413 #define NT_ARCH         2               /* Contains an architecture string.  */
 414
 415 /* Values for GNU .note.ABI-tag notes.  Note name is "GNU".  */
 416
 417 #define NT_GNU_ABI_TAG          1
 418 #define GNU_ABI_TAG_LINUX       0
 419 #define GNU_ABI_TAG_HURD        1
 420 #define GNU_ABI_TAG_SOLARIS     2
 421 #define GNU_ABI_TAG_FREEBSD     3
 422 #define GNU_ABI_TAG_NETBSD      4
 423
 424 /* Values for NetBSD .note.netbsd.ident notes.  Note name is "NetBSD".  */
 425
 426 #define NT_NETBSD_IDENT         1
 427
 428 /* Values for OpenBSD .note.openbsd.ident notes.  Note name is "OpenBSD".  */
 429
 430 #define NT_OPENBSD_IDENT        1
 431
 432 /* Values for FreeBSD .note.ABI-tag notes.  Note name is "FreeBSD".  */
 433
 434 #define NT_FREEBSD_ABI_TAG      1
 435
 436 /* These three macros disassemble and assemble a symbol table st_info field,
 437    which contains the symbol binding and symbol type.  The STB_ and STT_
 438    defines identify the binding and type.  */
 439
 440 #define ELF_ST_BIND(val)                (((unsigned int)(val)) >> 4)
 441 #define ELF_ST_TYPE(val)                ((val) & 0xF)
 442 #define ELF_ST_INFO(bind,type)          (((bind) << 4) + ((type) & 0xF))
 443
 444 /* The 64bit and 32bit versions of these macros are identical, but
 445    the ELF spec defines them, so here they are.  */
 446 #define ELF32_ST_BIND  ELF_ST_BIND
 447 #define ELF32_ST_TYPE  ELF_ST_TYPE
 448 #define ELF32_ST_INFO  ELF_ST_INFO
 449 #define ELF64_ST_BIND  ELF_ST_BIND
 450 #define ELF64_ST_TYPE  ELF_ST_TYPE
 451 #define ELF64_ST_INFO  ELF_ST_INFO
 452
 453 /* This macro disassembles and assembles a symbol's visibility into
 454    the st_other field.  The STV_ defines specify the actual visibility.  */
 455
 456 #define ELF_ST_VISIBILITY(v)            ((v) & 0x3)
 457 /* The remaining bits in the st_other field are not currently used.
 458    They should be set to zero.  */
 459
 460 #define ELF32_ST_VISIBILITY  ELF_ST_VISIBILITY
 461 #define ELF64_ST_VISIBILITY  ELF_ST_VISIBILITY
 462
 463
 464 #define STN_UNDEF       0               /* Undefined symbol index */
 465
 466 #define STB_LOCAL       0               /* Symbol not visible outside obj */
 467 #define STB_GLOBAL      1               /* Symbol visible outside obj */
 468 #define STB_WEAK        2               /* Like globals, lower precedence */
 469 #define STB_LOOS        10              /* OS-specific semantics */
 470 #define STB_HIOS        12              /* OS-specific semantics */
 471 #define STB_LOPROC      13              /* Application-specific semantics */
 472 #define STB_HIPROC      15              /* Application-specific semantics */
 473
 474 #define STT_NOTYPE      0               /* Symbol type is unspecified */
 475 #define STT_OBJECT      1               /* Symbol is a data object */
 476 #define STT_FUNC        2               /* Symbol is a code object */
 477 #define STT_SECTION     3               /* Symbol associated with a section */
 478 #define STT_FILE        4               /* Symbol gives a file name */
 479 #define STT_COMMON      5               /* An uninitialised common block */
 480 #define STT_TLS         6               /* Thread local data object */
 481 #define STT_RELC        8               /* Complex relocation expression */
 482 #define STT_SRELC       9               /* Signed Complex relocation expression */
 483 #define STT_LOOS        10              /* OS-specific semantics */
 484 #define STT_HIOS        12              /* OS-specific semantics */
 485 #define STT_LOPROC      13              /* Application-specific semantics */
 486 #define STT_HIPROC      15              /* Application-specific semantics */
 487
 488 /* Special section indices, which may show up in st_shndx fields, among
 489    other places.  */
 490
 491 #define SHN_UNDEF       0               /* Undefined section reference */
 492 #define SHN_LORESERVE   0xFF00          /* Begin range of reserved indices */
 493 #define SHN_LOPROC      0xFF00          /* Begin range of appl-specific */
 494 #define SHN_HIPROC      0xFF1F          /* End range of appl-specific */
 495 #define SHN_LOOS        0xFF20          /* OS specific semantics, lo */
 496 #define SHN_HIOS        0xFF3F          /* OS specific semantics, hi */
 497 #define SHN_ABS         0xFFF1          /* Associated symbol is absolute */
 498 #define SHN_COMMON      0xFFF2          /* Associated symbol is in common */
 499 #define SHN_XINDEX      0xFFFF          /* Section index is held elsewhere */
 500 #define SHN_HIRESERVE   0xFFFF          /* End range of reserved indices */
 501 #define SHN_BAD         ((unsigned) -1) /* Used internally by bfd */
 502
 503 /* The following constants control how a symbol may be accessed once it has
 504    become part of an executable or shared library.  */
 505
 506 #define STV_DEFAULT     0               /* Visibility is specified by binding type */
 507 #define STV_INTERNAL    1               /* OS specific version of STV_HIDDEN */
 508 #define STV_HIDDEN      2               /* Can only be seen inside currect component */
 509 #define STV_PROTECTED   3               /* Treat as STB_LOCAL inside current component */
 510
 511 /* Relocation info handling macros.  */
 512
 513 #define ELF32_R_SYM(i)          ((i) >> 8)
 514 #define ELF32_R_TYPE(i)         ((i) & 0xff)
 515 #define ELF32_R_INFO(s,t)       (((s) << 8) + ((t) & 0xff))
 516
 517 #define ELF64_R_SYM(i)          ((i) >> 32)
 518 #define ELF64_R_TYPE(i)         ((i) & 0xffffffff)
 519 #define ELF64_R_INFO(s,t)       (((bfd_vma) (s) << 31 << 1) + (bfd_vma) (t))
 520
 521 /* Dynamic section tags.  */
 522
 523 #define DT_NULL         0
 524 #define DT_NEEDED       1
 525 #define DT_PLTRELSZ     2
 526 #define DT_PLTGOT       3
 527 #define DT_HASH         4
 528 #define DT_STRTAB       5
 529 #define DT_SYMTAB       6
 530 #define DT_RELA         7
 531 #define DT_RELASZ       8
 532 #define DT_RELAENT      9
 533 #define DT_STRSZ        10
 534 #define DT_SYMENT       11
 535 #define DT_INIT         12
 536 #define DT_FINI         13
 537 #define DT_SONAME       14
 538 #define DT_RPATH        15
 539 #define DT_SYMBOLIC     16
 540 #define DT_REL          17
 541 #define DT_RELSZ        18
 542 #define DT_RELENT       19
 543 #define DT_PLTREL       20
 544 #define DT_DEBUG        21
 545 #define DT_TEXTREL      22
 546 #define DT_JMPREL       23
 547 #define DT_BIND_NOW     24
 548 #define DT_INIT_ARRAY   25
 549 #define DT_FINI_ARRAY   26
 550 #define DT_INIT_ARRAYSZ 27
 551 #define DT_FINI_ARRAYSZ 28
 552 #define DT_RUNPATH      29
 553 #define DT_FLAGS        30
 554 #define DT_ENCODING     32
 555 #define DT_PREINIT_ARRAY   32
 556 #define DT_PREINIT_ARRAYSZ 33
 557
 558 /* Note, the Oct 4, 1999 draft of the ELF ABI changed the values
 559    for DT_LOOS and DT_HIOS.  Some implementations however, use
 560    values outside of the new range (see below).  */
 561 #define OLD_DT_LOOS     0x60000000
 562 #define DT_LOOS         0x6000000d
 563 #define DT_HIOS         0x6ffff000
 564 #define OLD_DT_HIOS     0x6fffffff
 565
 566 #define DT_LOPROC       0x70000000
 567 #define DT_HIPROC       0x7fffffff
 568
 569 /* The next four dynamic tags are used on Solaris.  We support them
 570    everywhere.  Note these values lie outside of the (new) range for
 571    OS specific values.  This is a deliberate special case and we
 572    maintain it for backwards compatability.  */
 573 #define DT_VALRNGLO     0x6ffffd00
 574 #define DT_GNU_PRELINKED 0x6ffffdf5
 575 #define DT_GNU_CONFLICTSZ 0x6ffffdf6
 576 #define DT_GNU_LIBLISTSZ 0x6ffffdf7
 577 #define DT_CHECKSUM     0x6ffffdf8
 578 #define DT_PLTPADSZ     0x6ffffdf9
 579 #define DT_MOVEENT      0x6ffffdfa
 580 #define DT_MOVESZ       0x6ffffdfb
 581 #define DT_FEATURE      0x6ffffdfc
 582 #define DT_POSFLAG_1    0x6ffffdfd
 583 #define DT_SYMINSZ      0x6ffffdfe
 584 #define DT_SYMINENT     0x6ffffdff
 585 #define DT_VALRNGHI     0x6ffffdff
 586
 587 #define DT_ADDRRNGLO    0x6ffffe00
 588 #define DT_GNU_HASH     0x6ffffef5
 589 #define DT_TLSDESC_PLT  0x6ffffef6
 590 #define DT_TLSDESC_GOT  0x6ffffef7
 591 #define DT_GNU_CONFLICT 0x6ffffef8
 592 #define DT_GNU_LIBLIST  0x6ffffef9
 593 #define DT_CONFIG       0x6ffffefa
 594 #define DT_DEPAUDIT     0x6ffffefb
 595 #define DT_AUDIT        0x6ffffefc
 596 #define DT_PLTPAD       0x6ffffefd
 597 #define DT_MOVETAB      0x6ffffefe
 598 #define DT_SYMINFO      0x6ffffeff
 599 #define DT_ADDRRNGHI    0x6ffffeff
 600
 601 #define DT_RELACOUNT    0x6ffffff9
 602 #define DT_RELCOUNT     0x6ffffffa
 603 #define DT_FLAGS_1      0x6ffffffb
 604 #define DT_VERDEF       0x6ffffffc
 605 #define DT_VERDEFNUM    0x6ffffffd
 606 #define DT_VERNEED      0x6ffffffe
 607 #define DT_VERNEEDNUM   0x6fffffff
 608
 609 /* This tag is a GNU extension to the Solaris version scheme.  */
 610 #define DT_VERSYM       0x6ffffff0
 611
 612 #define DT_LOPROC       0x70000000
 613 #define DT_HIPROC       0x7fffffff
 614
 615 /* These section tags are used on Solaris.  We support them
 616    everywhere, and hope they do not conflict.  */
 617
 618 #define DT_AUXILIARY    0x7ffffffd
 619 #define DT_USED         0x7ffffffe
 620 #define DT_FILTER       0x7fffffff
 621
 622
 623 /* Values used in DT_FEATURE .dynamic entry.  */
 624 #define DTF_1_PARINIT   0x00000001
 625 /* From
 626
 627    http://docs.sun.com:80/ab2/coll.45.13/LLM/@Ab2PageView/21165?Ab2Lang=C&Ab2Enc=iso-8859-1
 628
 629    DTF_1_CONFEXP is the same as DTF_1_PARINIT. It is a typo. The value
 630    defined here is the same as the one in <sys/link.h> on Solaris 8.  */
 631 #define DTF_1_CONFEXP   0x00000002
 632
 633 /* Flag values used in the DT_POSFLAG_1 .dynamic entry.  */
 634 #define DF_P1_LAZYLOAD  0x00000001
 635 #define DF_P1_GROUPPERM 0x00000002
 636
 637 /* Flag value in in the DT_FLAGS_1 .dynamic entry.  */
 638 #define DF_1_NOW        0x00000001
 639 #define DF_1_GLOBAL     0x00000002
 640 #define DF_1_GROUP      0x00000004
 641 #define DF_1_NODELETE   0x00000008
 642 #define DF_1_LOADFLTR   0x00000010
 643 #define DF_1_INITFIRST  0x00000020
 644 #define DF_1_NOOPEN     0x00000040
 645 #define DF_1_ORIGIN     0x00000080
 646 #define DF_1_DIRECT     0x00000100
 647 #define DF_1_TRANS      0x00000200
 648 #define DF_1_INTERPOSE  0x00000400
 649 #define DF_1_NODEFLIB   0x00000800
 650 #define DF_1_NODUMP     0x00001000
 651 #define DF_1_CONLFAT    0x00002000
 652
 653 /* Flag values for the DT_FLAGS entry.  */
 654 #define DF_ORIGIN       (1 << 0)
 655 #define DF_SYMBOLIC     (1 << 1)
 656 #define DF_TEXTREL      (1 << 2)
 657 #define DF_BIND_NOW     (1 << 3)
 658 #define DF_STATIC_TLS   (1 << 4)
 659
 660 /* These constants are used for the version number of a Elf32_Verdef
 661    structure.  */
 662
 663 #define VER_DEF_NONE            0
 664 #define VER_DEF_CURRENT         1
 665
 666 /* These constants appear in the vd_flags field of a Elf32_Verdef
 667    structure.  */
 668
 669 #define VER_FLG_BASE            0x1
 670 #define VER_FLG_WEAK            0x2
 671
 672 /* These special constants can be found in an Elf32_Versym field.  */
 673
 674 #define VER_NDX_LOCAL           0
 675 #define VER_NDX_GLOBAL          1
 676
 677 /* These constants are used for the version number of a Elf32_Verneed
 678    structure.  */
 679
 680 #define VER_NEED_NONE           0
 681 #define VER_NEED_CURRENT        1
 682
 683 /* This flag appears in a Versym structure.  It means that the symbol
 684    is hidden, and is only visible with an explicit version number.
 685    This is a GNU extension.  */
 686
 687 #define VERSYM_HIDDEN           0x8000
 688
 689 /* This is the mask for the rest of the Versym information.  */
 690
 691 #define VERSYM_VERSION          0x7fff
 692
 693 /* This is a special token which appears as part of a symbol name.  It
 694    indictes that the rest of the name is actually the name of a
 695    version node, and is not part of the actual name.  This is a GNU
 696    extension.  For example, the symbol name `stat@ver2' is taken to
 697    mean the symbol `stat' in version `ver2'.  */
 698
 699 #define ELF_VER_CHR     '@'
 700
 701 /* Possible values for si_boundto.  */
 702
 703 #define SYMINFO_BT_SELF         0xffff  /* Symbol bound to self */
 704 #define SYMINFO_BT_PARENT       0xfffe  /* Symbol bound to parent */
 705 #define SYMINFO_BT_LOWRESERVE   0xff00  /* Beginning of reserved entries */
 706
 707 /* Possible bitmasks for si_flags.  */
 708
 709 #define SYMINFO_FLG_DIRECT      0x0001  /* Direct bound symbol */
 710 #define SYMINFO_FLG_PASSTHRU    0x0002  /* Pass-thru symbol for translator */
 711 #define SYMINFO_FLG_COPY        0x0004  /* Symbol is a copy-reloc */
 712 #define SYMINFO_FLG_LAZYLOAD    0x0008  /* Symbol bound to object to be lazy loaded */
 713
 714 /* Syminfo version values.  */
 715
 716 #define SYMINFO_NONE            0
 717 #define SYMINFO_CURRENT         1
 718 #define SYMINFO_NUM             2
 719
 720 /* Section Group Flags.  */
 721
 722 #define GRP_COMDAT              0x1     /* A COMDAT group */
 723
 724 /* Auxv a_type values.  */
 725
 726 #define AT_NULL         0               /* End of vector */
 727 #define AT_IGNORE       1               /* Entry should be ignored */
 728 #define AT_EXECFD       2               /* File descriptor of program */
 729 #define AT_PHDR         3               /* Program headers for program */
 730 #define AT_PHENT        4               /* Size of program header entry */
 731 #define AT_PHNUM        5               /* Number of program headers */
 732 #define AT_PAGESZ       6               /* System page size */
 733 #define AT_BASE         7               /* Base address of interpreter */
 734 #define AT_FLAGS        8               /* Flags */
 735 #define AT_ENTRY        9               /* Entry point of program */
 736 #define AT_NOTELF       10              /* Program is not ELF */
 737 #define AT_UID          11              /* Real uid */
 738 #define AT_EUID         12              /* Effective uid */
 739 #define AT_GID          13              /* Real gid */
 740 #define AT_EGID         14              /* Effective gid */
 741 #define AT_CLKTCK       17              /* Frequency of times() */
 742 #define AT_PLATFORM     15              /* String identifying platform.  */
 743 #define AT_HWCAP        16              /* Machine dependent hints about
 744                                            processor capabilities.  */
 745 #define AT_FPUCW        18              /* Used FPU control word.  */
 746 #define AT_DCACHEBSIZE  19              /* Data cache block size.  */
 747 #define AT_ICACHEBSIZE  20              /* Instruction cache block size.  */
 748 #define AT_UCACHEBSIZE  21              /* Unified cache block size.  */
 749 #define AT_IGNOREPPC    22              /* Entry should be ignored */
 750 #define AT_SECURE       23              /* Boolean, was exec setuid-like?  */
 751 /* Pointer to the global system page used for system calls and other
 752    nice things.  */
 753 #define AT_SYSINFO      32
 754 #define AT_SYSINFO_EHDR 33 /* Pointer to ELF header of system-supplied DSO.  */
 755
 756 #define AT_SUN_UID      2000    /* Effective user ID.  */
 757 #define AT_SUN_RUID     2001    /* Real user ID.  */
 758 #define AT_SUN_GID      2002    /* Effective group ID.  */
 759 #define AT_SUN_RGID     2003    /* Real group ID.  */
 760 #define AT_SUN_LDELF    2004    /* Dynamic linker's ELF header.  */
 761 #define AT_SUN_LDSHDR   2005    /* Dynamic linker's section headers.  */
 762 #define AT_SUN_LDNAME   2006    /* String giving name of dynamic linker.  */
 763 #define AT_SUN_LPAGESZ  2007    /* Large pagesize.   */
 764 #define AT_SUN_PLATFORM 2008    /* Platform name string.  */
 765 #define AT_SUN_HWCAP    2009    /* Machine dependent hints about
 766                                    processor capabilities.  */
 767 #define AT_SUN_IFLUSH   2010    /* Should flush icache? */
 768 #define AT_SUN_CPU      2011    /* CPU name string.  */
 769 #define AT_SUN_EMUL_ENTRY 2012  /* COFF entry point address.  */
 770 #define AT_SUN_EMUL_EXECFD 2013 /* COFF executable file descriptor.  */
 771 #define AT_SUN_EXECNAME 2014    /* Canonicalized file name given to execve.  */
 772 #define AT_SUN_MMU      2015    /* String for name of MMU module.   */
 773 #define AT_SUN_LDDATA   2016    /* Dynamic linker's data segment address.  */
 774
 775
 776 #endif /* _ELF_COMMON_H */