bfd/elfxx-target.h

   1 /* Target definitions for NN-bit ELF
   2    Copyright 1993, 1994, 1995, 1996 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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_elfNN_close_and_cleanup _bfd_generic_close_and_cleanup
  29 #define bfd_elfNN_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
  30 #ifndef bfd_elfNN_get_section_contents
  31 #define bfd_elfNN_get_section_contents _bfd_generic_get_section_contents
  32 #endif
  33
  34 #define bfd_elfNN_canonicalize_dynamic_symtab _bfd_elf_canonicalize_dynamic_symtab
  35 #define bfd_elfNN_canonicalize_reloc    _bfd_elf_canonicalize_reloc
  36 #ifndef bfd_elfNN_find_nearest_line
  37 #define bfd_elfNN_find_nearest_line     _bfd_elf_find_nearest_line
  38 #endif
  39 #define bfd_elfNN_read_minisymbols      _bfd_elf_read_minisymbols
  40 #define bfd_elfNN_minisymbol_to_symbol  _bfd_elf_minisymbol_to_symbol
  41 #define bfd_elfNN_get_dynamic_symtab_upper_bound _bfd_elf_get_dynamic_symtab_upper_bound
  42 #define bfd_elfNN_get_lineno            _bfd_elf_get_lineno
  43 #ifndef bfd_elfNN_get_reloc_upper_bound
  44 #define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound
  45 #endif
  46 #define bfd_elfNN_get_symbol_info       _bfd_elf_get_symbol_info
  47 #define bfd_elfNN_get_symtab            _bfd_elf_get_symtab
  48 #define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound
  49 #if 0 /* done in elf-bfd.h */
  50 #define bfd_elfNN_link_record_dynamic_symbol _bfd_elf_link_record_dynamic_symbol
  51 #endif
  52 #define bfd_elfNN_make_empty_symbol     _bfd_elf_make_empty_symbol
  53 #define bfd_elfNN_new_section_hook      _bfd_elf_new_section_hook
  54 #define bfd_elfNN_set_arch_mach         _bfd_elf_set_arch_mach
  55 #ifndef bfd_elfNN_set_section_contents
  56 #define bfd_elfNN_set_section_contents  _bfd_elf_set_section_contents
  57 #endif
  58 #define bfd_elfNN_sizeof_headers        _bfd_elf_sizeof_headers
  59 #define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents
  60
  61 #define bfd_elfNN_get_section_contents_in_window \
  62   _bfd_generic_get_section_contents_in_window
  63
  64 #ifndef elf_backend_want_got_plt
  65 #define elf_backend_want_got_plt 0
  66 #endif
  67 #ifndef elf_backend_plt_readonly
  68 #define elf_backend_plt_readonly 0
  69 #endif
  70 #ifndef elf_backend_want_plt_sym
  71 #define elf_backend_want_plt_sym 0
  72 #endif
  73
  74 #define bfd_elfNN_bfd_debug_info_start  bfd_void
  75 #define bfd_elfNN_bfd_debug_info_end    bfd_void
  76 #define bfd_elfNN_bfd_debug_info_accumulate     (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
  77
  78 #ifndef bfd_elfNN_bfd_get_relocated_section_contents
  79 #define bfd_elfNN_bfd_get_relocated_section_contents \
  80  bfd_generic_get_relocated_section_contents
  81 #endif
  82
  83 #ifndef bfd_elfNN_bfd_relax_section
  84 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
  85 #endif
  86
  87 #define bfd_elfNN_bfd_make_debug_symbol \
  88   ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
  89
  90 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
  91 #define bfd_elfNN_bfd_copy_private_symbol_data \
  92   _bfd_elf_copy_private_symbol_data
  93 #endif
  94
  95 #ifndef bfd_elfNN_bfd_copy_private_section_data
  96 #define bfd_elfNN_bfd_copy_private_section_data \
  97   _bfd_elf_copy_private_section_data
  98 #endif
  99 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
 100 #define bfd_elfNN_bfd_copy_private_bfd_data \
 101   ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
 102 #endif
 103 #ifndef bfd_elfNN_bfd_print_private_bfd_data
 104 #define bfd_elfNN_bfd_print_private_bfd_data \
 105   _bfd_elf_print_private_bfd_data
 106 #endif
 107 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
 108 #define bfd_elfNN_bfd_merge_private_bfd_data \
 109   ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
 110 #endif
 111 #ifndef bfd_elfNN_bfd_set_private_flags
 112 #define bfd_elfNN_bfd_set_private_flags \
 113   ((boolean (*) PARAMS ((bfd *, flagword))) bfd_true)
 114 #endif
 115 #ifndef bfd_elfNN_bfd_is_local_label
 116 #define bfd_elfNN_bfd_is_local_label bfd_generic_is_local_label
 117 #endif
 118
 119 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
 120 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
 121   _bfd_elf_get_dynamic_reloc_upper_bound
 122 #endif
 123 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
 124 #define bfd_elfNN_canonicalize_dynamic_reloc \
 125   _bfd_elf_canonicalize_dynamic_reloc
 126 #endif
 127
 128 #ifdef elf_backend_relocate_section
 129 #ifndef bfd_elfNN_bfd_link_hash_table_create
 130 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
 131 #endif
 132 #else /* ! defined (elf_backend_relocate_section) */
 133 /* If no backend relocate_section routine, use the generic linker.  */
 134 #ifndef bfd_elfNN_bfd_link_hash_table_create
 135 #define bfd_elfNN_bfd_link_hash_table_create \
 136   _bfd_generic_link_hash_table_create
 137 #endif
 138 #ifndef bfd_elfNN_bfd_link_add_symbols
 139 #define bfd_elfNN_bfd_link_add_symbols  _bfd_generic_link_add_symbols
 140 #endif
 141 #ifndef bfd_elfNN_bfd_final_link
 142 #define bfd_elfNN_bfd_final_link        _bfd_generic_final_link
 143 #endif
 144 #endif /* ! defined (elf_backend_relocate_section) */
 145 #ifndef bfd_elfNN_bfd_link_split_section
 146 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
 147 #endif
 148
 149 #ifndef bfd_elfNN_archive_p
 150 #define bfd_elfNN_archive_p bfd_generic_archive_p
 151 #endif
 152
 153 #ifndef bfd_elfNN_write_archive_contents
 154 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
 155 #endif
 156
 157 #ifndef bfd_elfNN_mkarchive
 158 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
 159 #endif
 160
 161 #ifndef elf_symbol_leading_char
 162 #define elf_symbol_leading_char 0
 163 #endif
 164
 165 #ifndef elf_info_to_howto
 166 #define elf_info_to_howto 0
 167 #endif
 168
 169 #ifndef elf_info_to_howto_rel
 170 #define elf_info_to_howto_rel 0
 171 #endif
 172
 173 #ifndef ELF_MAXPAGESIZE
 174 #define ELF_MAXPAGESIZE 1
 175 #endif
 176
 177 #ifndef elf_backend_collect
 178 #define elf_backend_collect false
 179 #endif
 180 #ifndef elf_backend_type_change_ok
 181 #define elf_backend_type_change_ok false
 182 #endif
 183
 184 #ifndef elf_backend_sym_is_global
 185 #define elf_backend_sym_is_global       0
 186 #endif
 187 #ifndef elf_backend_object_p
 188 #define elf_backend_object_p            0
 189 #endif
 190 #ifndef elf_backend_symbol_processing
 191 #define elf_backend_symbol_processing   0
 192 #endif
 193 #ifndef elf_backend_symbol_table_processing
 194 #define elf_backend_symbol_table_processing     0
 195 #endif
 196 #ifndef elf_backend_section_processing
 197 #define elf_backend_section_processing  0
 198 #endif
 199 #ifndef elf_backend_section_from_shdr
 200 #define elf_backend_section_from_shdr   0
 201 #endif
 202 #ifndef elf_backend_fake_sections
 203 #define elf_backend_fake_sections       0
 204 #endif
 205 #ifndef elf_backend_section_from_bfd_section
 206 #define elf_backend_section_from_bfd_section    0
 207 #endif
 208 #ifndef elf_backend_add_symbol_hook
 209 #define elf_backend_add_symbol_hook     0
 210 #endif
 211 #ifndef elf_backend_link_output_symbol_hook
 212 #define elf_backend_link_output_symbol_hook 0
 213 #endif
 214 #ifndef elf_backend_create_dynamic_sections
 215 #define elf_backend_create_dynamic_sections 0
 216 #endif
 217 #ifndef elf_backend_check_relocs
 218 #define elf_backend_check_relocs        0
 219 #endif
 220 #ifndef elf_backend_adjust_dynamic_symbol
 221 #define elf_backend_adjust_dynamic_symbol 0
 222 #endif
 223 #ifndef elf_backend_size_dynamic_sections
 224 #define elf_backend_size_dynamic_sections 0
 225 #endif
 226 #ifndef elf_backend_relocate_section
 227 #define elf_backend_relocate_section    0
 228 #endif
 229 #ifndef elf_backend_finish_dynamic_symbol
 230 #define elf_backend_finish_dynamic_symbol       0
 231 #endif
 232 #ifndef elf_backend_finish_dynamic_sections
 233 #define elf_backend_finish_dynamic_sections     0
 234 #endif
 235 #ifndef elf_backend_begin_write_processing
 236 #define elf_backend_begin_write_processing      0
 237 #endif
 238 #ifndef elf_backend_final_write_processing
 239 #define elf_backend_final_write_processing      0
 240 #endif
 241 #ifndef elf_backend_additional_program_headers
 242 #define elf_backend_additional_program_headers  0
 243 #endif
 244 #ifndef elf_backend_modify_segment_map
 245 #define elf_backend_modify_segment_map  0
 246 #endif
 247 #ifndef elf_backend_ecoff_debug_swap
 248 #define elf_backend_ecoff_debug_swap    0
 249 #endif
 250
 251 #ifndef ELF_MACHINE_ALT1
 252 #define ELF_MACHINE_ALT1 0
 253 #endif
 254
 255 #ifndef ELF_MACHINE_ALT2
 256 #define ELF_MACHINE_ALT2 0
 257 #endif
 258
 259 #ifndef elf_backend_size_info
 260 #define elf_backend_size_info _bfd_elfNN_size_info
 261 #endif
 262
 263 extern const struct elf_size_info _bfd_elfNN_size_info;
 264
 265 static CONST struct elf_backend_data elfNN_bed =
 266 {
 267 #ifdef USE_REL
 268   0,                            /* use_rela_p */
 269 #else
 270   1,                            /* use_rela_p */
 271 #endif
 272   ELF_ARCH,                     /* arch */
 273   ELF_MACHINE_CODE,             /* elf_machine_code */
 274   ELF_MAXPAGESIZE,              /* maxpagesize */
 275   elf_backend_collect,
 276   elf_backend_type_change_ok,
 277   elf_info_to_howto,
 278   elf_info_to_howto_rel,
 279   elf_backend_sym_is_global,
 280   elf_backend_object_p,
 281   elf_backend_symbol_processing,
 282   elf_backend_symbol_table_processing,
 283   elf_backend_section_processing,
 284   elf_backend_section_from_shdr,
 285   elf_backend_fake_sections,
 286   elf_backend_section_from_bfd_section,
 287   elf_backend_add_symbol_hook,
 288   elf_backend_link_output_symbol_hook,
 289   elf_backend_create_dynamic_sections,
 290   elf_backend_check_relocs,
 291   elf_backend_adjust_dynamic_symbol,
 292   elf_backend_size_dynamic_sections,
 293   elf_backend_relocate_section,
 294   elf_backend_finish_dynamic_symbol,
 295   elf_backend_finish_dynamic_sections,
 296   elf_backend_begin_write_processing,
 297   elf_backend_final_write_processing,
 298   elf_backend_additional_program_headers,
 299   elf_backend_modify_segment_map,
 300   elf_backend_ecoff_debug_swap,
 301   ELF_MACHINE_ALT1,
 302   ELF_MACHINE_ALT2,
 303   &elf_backend_size_info,
 304   elf_backend_want_got_plt,
 305   elf_backend_plt_readonly,
 306   elf_backend_want_plt_sym
 307 };
 308
 309 #ifdef TARGET_BIG_SYM
 310 const bfd_target TARGET_BIG_SYM =
 311 {
 312   /* name: identify kind of target */
 313   TARGET_BIG_NAME,
 314
 315   /* flavour: general indication about file */
 316   bfd_target_elf_flavour,
 317
 318   /* byteorder: data is big endian */
 319   BFD_ENDIAN_BIG,
 320
 321   /* header_byteorder: header is also big endian */
 322   BFD_ENDIAN_BIG,
 323
 324   /* object_flags: mask of all file flags */
 325   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
 326    DYNAMIC | WP_TEXT | D_PAGED),
 327
 328   /* section_flags: mask of all section flags */
 329   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
 330    SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES),
 331
 332    /* leading_symbol_char: is the first char of a user symbol
 333       predictable, and if so what is it */
 334   elf_symbol_leading_char,
 335
 336   /* ar_pad_char: pad character for filenames within an archive header
 337      FIXME:  this really has nothing to do with ELF, this is a characteristic
 338      of the archiver and/or os and should be independently tunable */
 339   '/',
 340
 341   /* ar_max_namelen: maximum number of characters in an archive header
 342      FIXME:  this really has nothing to do with ELF, this is a characteristic
 343      of the archiver and should be independently tunable.  This value is
 344      a WAG (wild a** guess) */
 345   14,
 346
 347   /* Routines to byte-swap various sized integers from the data sections */
 348   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 349     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 350     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 351
 352   /* Routines to byte-swap various sized integers from the file headers */
 353   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 354     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 355     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 356
 357   /* bfd_check_format: check the format of a file being read */
 358   { _bfd_dummy_target,          /* unknown format */
 359     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
 360     bfd_elfNN_archive_p,        /* an archive */
 361     bfd_elfNN_core_file_p       /* a core file */
 362   },
 363
 364   /* bfd_set_format: set the format of a file being written */
 365   { bfd_false,
 366     bfd_elf_mkobject,
 367     bfd_elfNN_mkarchive,
 368     bfd_false
 369   },
 370
 371   /* bfd_write_contents: write cached information into a file being written */
 372   { bfd_false,
 373     bfd_elfNN_write_object_contents,
 374     bfd_elfNN_write_archive_contents,
 375     bfd_false
 376   },
 377
 378       BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
 379       BFD_JUMP_TABLE_COPY (bfd_elfNN),
 380       BFD_JUMP_TABLE_CORE (bfd_elfNN),
 381 #ifdef bfd_elfNN_archive_functions
 382       BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
 383 #else
 384       BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 385 #endif
 386       BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
 387       BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
 388       BFD_JUMP_TABLE_WRITE (bfd_elfNN),
 389       BFD_JUMP_TABLE_LINK (bfd_elfNN),
 390       BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
 391
 392   /* backend_data: */
 393   (PTR) &elfNN_bed,
 394 };
 395 #endif
 396
 397 #ifdef TARGET_LITTLE_SYM
 398 const bfd_target TARGET_LITTLE_SYM =
 399 {
 400   /* name: identify kind of target */
 401   TARGET_LITTLE_NAME,
 402
 403   /* flavour: general indication about file */
 404   bfd_target_elf_flavour,
 405
 406   /* byteorder: data is little endian */
 407   BFD_ENDIAN_LITTLE,
 408
 409   /* header_byteorder: header is also little endian */
 410   BFD_ENDIAN_LITTLE,
 411
 412   /* object_flags: mask of all file flags */
 413   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
 414    DYNAMIC | WP_TEXT | D_PAGED),
 415
 416   /* section_flags: mask of all section flags */
 417   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
 418    SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES),
 419
 420    /* leading_symbol_char: is the first char of a user symbol
 421       predictable, and if so what is it */
 422   elf_symbol_leading_char,
 423
 424   /* ar_pad_char: pad character for filenames within an archive header
 425      FIXME:  this really has nothing to do with ELF, this is a characteristic
 426      of the archiver and/or os and should be independently tunable */
 427   '/',
 428
 429   /* ar_max_namelen: maximum number of characters in an archive header
 430      FIXME:  this really has nothing to do with ELF, this is a characteristic
 431      of the archiver and should be independently tunable.  This value is
 432      a WAG (wild a** guess) */
 433   14,
 434
 435   /* Routines to byte-swap various sized integers from the data sections */
 436   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 437     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 438     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 439
 440   /* Routines to byte-swap various sized integers from the file headers */
 441   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 442     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 443     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 444
 445   /* bfd_check_format: check the format of a file being read */
 446   { _bfd_dummy_target,          /* unknown format */
 447     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
 448     bfd_elfNN_archive_p,        /* an archive */
 449     bfd_elfNN_core_file_p       /* a core file */
 450   },
 451
 452   /* bfd_set_format: set the format of a file being written */
 453   { bfd_false,
 454     bfd_elf_mkobject,
 455     bfd_elfNN_mkarchive,
 456     bfd_false
 457   },
 458
 459   /* bfd_write_contents: write cached information into a file being written */
 460   { bfd_false,
 461     bfd_elfNN_write_object_contents,
 462     bfd_elfNN_write_archive_contents,
 463     bfd_false
 464   },
 465
 466       BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
 467       BFD_JUMP_TABLE_COPY (bfd_elfNN),
 468       BFD_JUMP_TABLE_CORE (bfd_elfNN),
 469 #ifdef bfd_elfNN_archive_functions
 470       BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
 471 #else
 472       BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 473 #endif
 474       BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
 475       BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
 476       BFD_JUMP_TABLE_WRITE (bfd_elfNN),
 477       BFD_JUMP_TABLE_LINK (bfd_elfNN),
 478       BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
 479
 480   /* backend_data: */
 481   (PTR) &elfNN_bed,
 482 };
 483 #endif