bfd/elf64-target.h

   1 /* Target definitions for 64-bit ELF
   2    Copyright 1993, 1994 Free Software Foundation, Inc.
   3
   4 This file is part of BFD, the Binary File Descriptor library.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 /* This structure contains everything that BFD knows about a target.
  21    It includes things like its byte order, name, what routines to call
  22    to do various operations, etc.  Every BFD points to a target structure
  23    with its "xvec" member.
  24
  25    There are two such structures here:  one for big-endian machines and
  26    one for little-endian machines.   */
  27
  28 #define bfd_elf64_close_and_cleanup _bfd_generic_close_and_cleanup
  29 #define bfd_elf64_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
  30 #ifndef bfd_elf64_get_section_contents
  31 #define bfd_elf64_get_section_contents _bfd_generic_get_section_contents
  32 #endif
  33
  34 #define bfd_elf64_bfd_debug_info_start  bfd_void
  35 #define bfd_elf64_bfd_debug_info_end    bfd_void
  36 #define bfd_elf64_bfd_debug_info_accumulate     (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
  37 #define bfd_elf64_bfd_get_relocated_section_contents \
  38  bfd_generic_get_relocated_section_contents
  39 #define bfd_elf64_bfd_relax_section bfd_generic_relax_section
  40 #define bfd_elf64_bfd_make_debug_symbol \
  41   ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
  42 #ifndef bfd_elf64_bfd_link_hash_table_create
  43 #define bfd_elf64_bfd_link_hash_table_create \
  44   _bfd_generic_link_hash_table_create
  45 #endif
  46 #ifndef bfd_elf64_bfd_link_add_symbols
  47 #define bfd_elf64_bfd_link_add_symbols  _bfd_generic_link_add_symbols
  48 #endif
  49 #ifndef bfd_elf64_bfd_final_link
  50 #define bfd_elf64_bfd_final_link        _bfd_generic_final_link
  51 #endif
  52
  53 #ifndef bfd_elf64_bfd_copy_private_section_data
  54 #define bfd_elf64_bfd_copy_private_section_data \
  55   ((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_true)
  56 #endif
  57 #ifndef bfd_elf64_bfd_copy_private_bfd_data
  58 #define bfd_elf64_bfd_copy_private_bfd_data \
  59   ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
  60 #endif
  61 #ifndef bfd_elf64_bfd_is_local_label
  62 #define bfd_elf64_bfd_is_local_label bfd_generic_is_local_label
  63 #endif
  64
  65 #ifndef bfd_elf64_get_dynamic_reloc_upper_bound
  66 #define bfd_elf64_get_dynamic_reloc_upper_bound \
  67   _bfd_nodynamic_get_dynamic_reloc_upper_bound
  68 #endif
  69 #ifndef bfd_elf64_canonicalize_dynamic_reloc
  70 #define bfd_elf64_canonicalize_dynamic_reloc \
  71   _bfd_nodynamic_canonicalize_dynamic_reloc
  72 #endif
  73
  74 #ifndef elf_info_to_howto_rel
  75 #define elf_info_to_howto_rel 0
  76 #endif
  77
  78 #ifndef ELF_MAXPAGESIZE
  79 #define ELF_MAXPAGESIZE 1
  80 #endif
  81
  82 #ifndef elf_backend_sym_is_global
  83 #define elf_backend_sym_is_global       0
  84 #endif
  85 #ifndef elf_backend_object_p
  86 #define elf_backend_object_p            0
  87 #endif
  88 #ifndef elf_backend_symbol_processing
  89 #define elf_backend_symbol_processing   0
  90 #endif
  91 #ifndef elf_backend_symbol_table_processing
  92 #define elf_backend_symbol_table_processing     0
  93 #endif
  94 #ifndef elf_backend_section_processing
  95 #define elf_backend_section_processing  0
  96 #endif
  97 #ifndef elf_backend_section_from_shdr
  98 #define elf_backend_section_from_shdr   0
  99 #endif
 100 #ifndef elf_backend_fake_sections
 101 #define elf_backend_fake_sections       0
 102 #endif
 103 #ifndef elf_backend_section_from_bfd_section
 104 #define elf_backend_section_from_bfd_section    0
 105 #endif
 106 #ifndef elf_backend_begin_write_processing
 107 #define elf_backend_begin_write_processing      0
 108 #endif
 109 #ifndef elf_backend_final_write_processing
 110 #define elf_backend_final_write_processing      0
 111 #endif
 112 #ifndef elf_backend_ecoff_debug_swap
 113 #define elf_backend_ecoff_debug_swap    0
 114 #endif
 115
 116 static CONST struct elf_backend_data elf64_bed =
 117 {
 118 #ifdef USE_REL
 119   0,                            /* use_rela_p */
 120 #else
 121   1,                            /* use_rela_p */
 122 #endif
 123   1,                            /* elf_64_p */
 124   ELF_ARCH,                     /* arch */
 125   ELF_MACHINE_CODE,             /* elf_machine_code */
 126   ELF_MAXPAGESIZE,              /* maxpagesize */
 127   elf_info_to_howto,
 128   elf_info_to_howto_rel,
 129   elf_backend_sym_is_global,
 130   elf_backend_object_p,
 131   elf_backend_symbol_processing,
 132   elf_backend_symbol_table_processing,
 133   elf_backend_section_processing,
 134   elf_backend_section_from_shdr,
 135   elf_backend_fake_sections,
 136   elf_backend_section_from_bfd_section,
 137   elf_backend_begin_write_processing,
 138   elf_backend_final_write_processing,
 139   elf_backend_ecoff_debug_swap
 140 };
 141
 142 #ifdef TARGET_BIG_SYM
 143 bfd_target TARGET_BIG_SYM =
 144 {
 145   /* name: identify kind of target */
 146   TARGET_BIG_NAME,
 147
 148   /* flavour: general indication about file */
 149   bfd_target_elf_flavour,
 150
 151   /* byteorder_big_p: data is big endian */
 152   true,
 153
 154   /* header_byteorder_big_p: header is also big endian */
 155   true,
 156
 157   /* object_flags: mask of all file flags */
 158   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
 159    DYNAMIC | WP_TEXT),
 160
 161   /* section_flags: mask of all section flags */
 162   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
 163    SEC_CODE | SEC_DATA | SEC_DEBUGGING),
 164
 165    /* leading_symbol_char: is the first char of a user symbol
 166       predictable, and if so what is it */
 167    0,
 168
 169   /* ar_pad_char: pad character for filenames within an archive header
 170      FIXME:  this really has nothing to do with ELF, this is a characteristic
 171      of the archiver and/or os and should be independently tunable */
 172   '/',
 173
 174   /* ar_max_namelen: maximum number of characters in an archive header
 175      FIXME:  this really has nothing to do with ELF, this is a characteristic
 176      of the archiver and should be independently tunable.  This value is
 177      a WAG (wild a** guess) */
 178   15,
 179
 180   /* align_power_min: minimum alignment restriction for any section
 181      FIXME:  this value may be target machine dependent */
 182   3,
 183
 184   /* Routines to byte-swap various sized integers from the data sections */
 185   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 186     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 187     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 188
 189   /* Routines to byte-swap various sized integers from the file headers */
 190   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 191     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 192     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 193
 194   /* bfd_check_format: check the format of a file being read */
 195   { _bfd_dummy_target,          /* unknown format */
 196     bfd_elf64_object_p,         /* assembler/linker output (object file) */
 197     bfd_generic_archive_p,      /* an archive */
 198     bfd_elf64_core_file_p       /* a core file */
 199   },
 200
 201   /* bfd_set_format: set the format of a file being written */
 202   { bfd_false,
 203     bfd_elf_mkobject,
 204     _bfd_generic_mkarchive,
 205     bfd_false
 206   },
 207
 208   /* bfd_write_contents: write cached information into a file being written */
 209   { bfd_false,
 210     bfd_elf64_write_object_contents,
 211     _bfd_write_archive_contents,
 212     bfd_false
 213   },
 214
 215       BFD_JUMP_TABLE_GENERIC (bfd_elf64),
 216       BFD_JUMP_TABLE_COPY (bfd_elf64),
 217       BFD_JUMP_TABLE_CORE (bfd_elf64),
 218       BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 219       BFD_JUMP_TABLE_SYMBOLS (bfd_elf64),
 220       BFD_JUMP_TABLE_RELOCS (bfd_elf64),
 221       BFD_JUMP_TABLE_WRITE (bfd_elf64),
 222       BFD_JUMP_TABLE_LINK (bfd_elf64),
 223       BFD_JUMP_TABLE_DYNAMIC (bfd_elf64),
 224
 225   /* backend_data: */
 226   (PTR) &elf64_bed,
 227 };
 228 #endif
 229
 230 #ifdef TARGET_LITTLE_SYM
 231 bfd_target TARGET_LITTLE_SYM =
 232 {
 233   /* name: identify kind of target */
 234   TARGET_LITTLE_NAME,
 235
 236   /* flavour: general indication about file */
 237   bfd_target_elf_flavour,
 238
 239   /* byteorder_big_p: data is big endian */
 240   false,                /* Nope -- this one's little endian */
 241
 242   /* header_byteorder_big_p: header is also big endian */
 243   false,                /* Nope -- this one's little endian */
 244
 245   /* object_flags: mask of all file flags */
 246   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
 247    DYNAMIC | WP_TEXT),
 248
 249   /* section_flags: mask of all section flags */
 250   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
 251    SEC_CODE | SEC_DATA | SEC_DEBUGGING),
 252
 253    /* leading_symbol_char: is the first char of a user symbol
 254       predictable, and if so what is it */
 255    0,
 256
 257   /* ar_pad_char: pad character for filenames within an archive header
 258      FIXME:  this really has nothing to do with ELF, this is a characteristic
 259      of the archiver and/or os and should be independently tunable */
 260   '/',
 261
 262   /* ar_max_namelen: maximum number of characters in an archive header
 263      FIXME:  this really has nothing to do with ELF, this is a characteristic
 264      of the archiver and should be independently tunable.  This value is
 265      a WAG (wild a** guess) */
 266   15,
 267
 268   /* align_power_min: minimum alignment restriction for any section
 269      FIXME:  this value may be target machine dependent */
 270   3,
 271
 272   /* Routines to byte-swap various sized integers from the data sections */
 273   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 274     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 275     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 276
 277   /* Routines to byte-swap various sized integers from the file headers */
 278   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 279     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 280     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 281
 282   /* bfd_check_format: check the format of a file being read */
 283   { _bfd_dummy_target,          /* unknown format */
 284     bfd_elf64_object_p,         /* assembler/linker output (object file) */
 285     bfd_generic_archive_p,      /* an archive */
 286     bfd_elf64_core_file_p       /* a core file */
 287   },
 288
 289   /* bfd_set_format: set the format of a file being written */
 290   { bfd_false,
 291     bfd_elf_mkobject,
 292     _bfd_generic_mkarchive,
 293     bfd_false
 294   },
 295
 296   /* bfd_write_contents: write cached information into a file being written */
 297   { bfd_false,
 298     bfd_elf64_write_object_contents,
 299     _bfd_write_archive_contents,
 300     bfd_false
 301   },
 302
 303       BFD_JUMP_TABLE_GENERIC (bfd_elf64),
 304       BFD_JUMP_TABLE_COPY (bfd_elf64),
 305       BFD_JUMP_TABLE_CORE (bfd_elf64),
 306       BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 307       BFD_JUMP_TABLE_SYMBOLS (bfd_elf64),
 308       BFD_JUMP_TABLE_RELOCS (bfd_elf64),
 309       BFD_JUMP_TABLE_WRITE (bfd_elf64),
 310       BFD_JUMP_TABLE_LINK (bfd_elf64),
 311       BFD_JUMP_TABLE_DYNAMIC (bfd_elf64),
 312
 313   /* backend_data: */
 314   (PTR) &elf64_bed,
 315 };
 316 #endif