bfd/elfxx-target.h

   1 /* Target definitions for NN-bit ELF
   2    Copyright (C) 1993-2016 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21
  22 /* This structure contains everything that BFD knows about a target.
  23    It includes things like its byte order, name, what routines to call
  24    to do various operations, etc.  Every BFD points to a target structure
  25    with its "xvec" member.
  26
  27    There are two such structures here:  one for big-endian machines and
  28    one for little-endian machines.   */
  29
  30 #ifndef bfd_elfNN_close_and_cleanup
  31 #define bfd_elfNN_close_and_cleanup _bfd_elf_close_and_cleanup
  32 #endif
  33 #ifndef bfd_elfNN_bfd_free_cached_info
  34 #define bfd_elfNN_bfd_free_cached_info _bfd_free_cached_info
  35 #endif
  36 #ifndef bfd_elfNN_get_section_contents
  37 #define bfd_elfNN_get_section_contents _bfd_generic_get_section_contents
  38 #endif
  39
  40 #define bfd_elfNN_canonicalize_dynamic_symtab \
  41   _bfd_elf_canonicalize_dynamic_symtab
  42 #ifndef bfd_elfNN_get_synthetic_symtab
  43 #define bfd_elfNN_get_synthetic_symtab \
  44   _bfd_elf_get_synthetic_symtab
  45 #endif
  46 #ifndef bfd_elfNN_canonicalize_reloc
  47 #define bfd_elfNN_canonicalize_reloc    _bfd_elf_canonicalize_reloc
  48 #endif
  49 #ifndef bfd_elfNN_find_nearest_line
  50 #define bfd_elfNN_find_nearest_line     _bfd_elf_find_nearest_line
  51 #endif
  52 #ifndef bfd_elfNN_find_line
  53 #define bfd_elfNN_find_line             _bfd_elf_find_line
  54 #endif
  55 #ifndef bfd_elfNN_find_inliner_info
  56 #define bfd_elfNN_find_inliner_info     _bfd_elf_find_inliner_info
  57 #endif
  58 #define bfd_elfNN_read_minisymbols      _bfd_elf_read_minisymbols
  59 #define bfd_elfNN_minisymbol_to_symbol  _bfd_elf_minisymbol_to_symbol
  60 #define bfd_elfNN_get_dynamic_symtab_upper_bound \
  61   _bfd_elf_get_dynamic_symtab_upper_bound
  62 #define bfd_elfNN_get_lineno            _bfd_elf_get_lineno
  63 #ifndef bfd_elfNN_get_reloc_upper_bound
  64 #define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound
  65 #endif
  66 #ifndef bfd_elfNN_get_symbol_info
  67 #define bfd_elfNN_get_symbol_info       _bfd_elf_get_symbol_info
  68 #endif
  69 #ifndef bfd_elfNN_get_symbol_version_string
  70 #define bfd_elfNN_get_symbol_version_string \
  71   _bfd_elf_get_symbol_version_string
  72 #endif
  73 #define bfd_elfNN_canonicalize_symtab   _bfd_elf_canonicalize_symtab
  74 #define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound
  75 #define bfd_elfNN_make_empty_symbol     _bfd_elf_make_empty_symbol
  76 #ifndef bfd_elfNN_new_section_hook
  77 #define bfd_elfNN_new_section_hook      _bfd_elf_new_section_hook
  78 #endif
  79 #define bfd_elfNN_set_arch_mach         _bfd_elf_set_arch_mach
  80 #ifndef bfd_elfNN_set_section_contents
  81 #define bfd_elfNN_set_section_contents  _bfd_elf_set_section_contents
  82 #endif
  83 #define bfd_elfNN_sizeof_headers        _bfd_elf_sizeof_headers
  84 #define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents
  85 #define bfd_elfNN_write_corefile_contents _bfd_elf_write_corefile_contents
  86
  87 #define bfd_elfNN_get_section_contents_in_window \
  88   _bfd_generic_get_section_contents_in_window
  89
  90 #ifndef elf_backend_can_refcount
  91 #define elf_backend_can_refcount 0
  92 #endif
  93 #ifndef elf_backend_want_got_plt
  94 #define elf_backend_want_got_plt 0
  95 #endif
  96 #ifndef elf_backend_plt_readonly
  97 #define elf_backend_plt_readonly 0
  98 #endif
  99 #ifndef elf_backend_want_plt_sym
 100 #define elf_backend_want_plt_sym 0
 101 #endif
 102 #ifndef elf_backend_plt_not_loaded
 103 #define elf_backend_plt_not_loaded 0
 104 #endif
 105 #ifndef elf_backend_plt_alignment
 106 #define elf_backend_plt_alignment 2
 107 #endif
 108 #ifndef elf_backend_want_dynbss
 109 #define elf_backend_want_dynbss 1
 110 #endif
 111 #ifndef elf_backend_want_p_paddr_set_to_zero
 112 #define elf_backend_want_p_paddr_set_to_zero 0
 113 #endif
 114 #ifndef elf_backend_default_execstack
 115 #define elf_backend_default_execstack 1
 116 #endif
 117 #ifndef elf_backend_caches_rawsize
 118 #define elf_backend_caches_rawsize 0
 119 #endif
 120 #ifndef elf_backend_extern_protected_data
 121 #define elf_backend_extern_protected_data 0
 122 #endif
 123 #ifndef elf_backend_stack_align
 124 #define elf_backend_stack_align 16
 125 #endif
 126 #ifndef elf_backend_strtab_flags
 127 #define elf_backend_strtab_flags 0
 128 #endif
 129
 130 #define bfd_elfNN_bfd_debug_info_start  bfd_void
 131 #define bfd_elfNN_bfd_debug_info_end    bfd_void
 132 #define bfd_elfNN_bfd_debug_info_accumulate \
 133   ((void (*) (bfd*, struct bfd_section *)) bfd_void)
 134
 135 #ifndef bfd_elfNN_bfd_get_relocated_section_contents
 136 #define bfd_elfNN_bfd_get_relocated_section_contents \
 137   bfd_generic_get_relocated_section_contents
 138 #endif
 139
 140 #ifndef bfd_elfNN_bfd_relax_section
 141 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
 142 #endif
 143
 144 #ifndef elf_backend_can_gc_sections
 145 #define elf_backend_can_gc_sections 0
 146 #endif
 147 #ifndef elf_backend_can_refcount
 148 #define elf_backend_can_refcount 0
 149 #endif
 150 #ifndef elf_backend_want_got_sym
 151 #define elf_backend_want_got_sym 1
 152 #endif
 153 #ifndef elf_backend_gc_keep
 154 #define elf_backend_gc_keep             _bfd_elf_gc_keep
 155 #endif
 156 #ifndef elf_backend_gc_mark_dynamic_ref
 157 #define elf_backend_gc_mark_dynamic_ref bfd_elf_gc_mark_dynamic_ref_symbol
 158 #endif
 159 #ifndef elf_backend_gc_mark_hook
 160 #define elf_backend_gc_mark_hook        _bfd_elf_gc_mark_hook
 161 #endif
 162 #ifndef elf_backend_gc_mark_extra_sections
 163 #define elf_backend_gc_mark_extra_sections _bfd_elf_gc_mark_extra_sections
 164 #endif
 165 #ifndef elf_backend_gc_sweep_hook
 166 #define elf_backend_gc_sweep_hook       NULL
 167 #endif
 168 #ifndef bfd_elfNN_bfd_gc_sections
 169 #define bfd_elfNN_bfd_gc_sections bfd_elf_gc_sections
 170 #endif
 171
 172 #ifndef bfd_elfNN_bfd_merge_sections
 173 #define bfd_elfNN_bfd_merge_sections \
 174   _bfd_elf_merge_sections
 175 #endif
 176
 177 #ifndef bfd_elfNN_bfd_is_group_section
 178 #define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section
 179 #endif
 180
 181 #ifndef bfd_elfNN_bfd_discard_group
 182 #define bfd_elfNN_bfd_discard_group bfd_generic_discard_group
 183 #endif
 184
 185 #ifndef bfd_elfNN_section_already_linked
 186 #define bfd_elfNN_section_already_linked \
 187   _bfd_elf_section_already_linked
 188 #endif
 189
 190 #ifndef bfd_elfNN_bfd_define_common_symbol
 191 #define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol
 192 #endif
 193
 194 #ifndef bfd_elfNN_bfd_lookup_section_flags
 195 #define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags
 196 #endif
 197
 198 #ifndef bfd_elfNN_bfd_make_debug_symbol
 199 #define bfd_elfNN_bfd_make_debug_symbol \
 200   ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
 201 #endif
 202
 203 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
 204 #define bfd_elfNN_bfd_copy_private_symbol_data \
 205   _bfd_elf_copy_private_symbol_data
 206 #endif
 207
 208 #ifndef bfd_elfNN_bfd_copy_private_section_data
 209 #define bfd_elfNN_bfd_copy_private_section_data \
 210   _bfd_elf_copy_private_section_data
 211 #endif
 212 #ifndef bfd_elfNN_bfd_copy_private_header_data
 213 #define bfd_elfNN_bfd_copy_private_header_data \
 214   _bfd_elf_copy_private_header_data
 215 #endif
 216 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
 217 #define bfd_elfNN_bfd_copy_private_bfd_data \
 218   _bfd_elf_copy_private_bfd_data
 219 #endif
 220 #ifndef bfd_elfNN_bfd_print_private_bfd_data
 221 #define bfd_elfNN_bfd_print_private_bfd_data \
 222   _bfd_elf_print_private_bfd_data
 223 #endif
 224 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
 225 #define bfd_elfNN_bfd_merge_private_bfd_data \
 226   ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_true)
 227 #endif
 228 #ifndef bfd_elfNN_bfd_set_private_flags
 229 #define bfd_elfNN_bfd_set_private_flags \
 230   ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
 231 #endif
 232 #ifndef bfd_elfNN_bfd_is_local_label_name
 233 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
 234 #endif
 235 #ifndef bfd_elfNN_bfd_is_target_special_symbol
 236 #define bfd_elfNN_bfd_is_target_special_symbol \
 237   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
 238 #endif
 239
 240 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
 241 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
 242   _bfd_elf_get_dynamic_reloc_upper_bound
 243 #endif
 244 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
 245 #define bfd_elfNN_canonicalize_dynamic_reloc \
 246   _bfd_elf_canonicalize_dynamic_reloc
 247 #endif
 248
 249 #ifdef elf_backend_relocate_section
 250 #ifndef bfd_elfNN_bfd_link_hash_table_create
 251 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
 252 #endif
 253 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
 254 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
 255   _bfd_elf_copy_link_hash_symbol_type
 256 #endif
 257 #ifndef bfd_elfNN_bfd_link_add_symbols
 258 #define bfd_elfNN_bfd_link_add_symbols  bfd_elf_link_add_symbols
 259 #endif
 260 #ifndef bfd_elfNN_bfd_final_link
 261 #define bfd_elfNN_bfd_final_link        bfd_elf_final_link
 262 #endif
 263 #else /* ! defined (elf_backend_relocate_section) */
 264 /* If no backend relocate_section routine, use the generic linker.
 265    Note - this will prevent the port from being able to use some of
 266    the other features of the ELF linker, because the generic hash structure
 267    does not have the fields needed by the ELF linker.  In particular it
 268    means that linking directly to S-records will not work.  */
 269 #ifndef bfd_elfNN_bfd_link_hash_table_create
 270 #define bfd_elfNN_bfd_link_hash_table_create \
 271   _bfd_generic_link_hash_table_create
 272 #endif
 273 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
 274 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
 275   _bfd_generic_copy_link_hash_symbol_type
 276 #endif
 277 #ifndef bfd_elfNN_bfd_link_add_symbols
 278 #define bfd_elfNN_bfd_link_add_symbols  _bfd_generic_link_add_symbols
 279 #endif
 280 #ifndef bfd_elfNN_bfd_final_link
 281 #define bfd_elfNN_bfd_final_link        _bfd_generic_final_link
 282 #endif
 283 #endif /* ! defined (elf_backend_relocate_section) */
 284
 285 #ifndef bfd_elfNN_bfd_link_just_syms
 286 #define bfd_elfNN_bfd_link_just_syms    _bfd_elf_link_just_syms
 287 #endif
 288
 289 #ifndef bfd_elfNN_bfd_link_split_section
 290 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
 291 #endif
 292
 293 #ifndef bfd_elfNN_bfd_link_check_relocs
 294 #define bfd_elfNN_bfd_link_check_relocs  _bfd_elf_link_check_relocs
 295 #endif
 296
 297 #ifndef bfd_elfNN_archive_p
 298 #define bfd_elfNN_archive_p bfd_generic_archive_p
 299 #endif
 300
 301 #ifndef bfd_elfNN_write_archive_contents
 302 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
 303 #endif
 304
 305 #ifndef bfd_elfNN_mkobject
 306 #define bfd_elfNN_mkobject bfd_elf_make_object
 307 #endif
 308
 309 #ifndef bfd_elfNN_mkcorefile
 310 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
 311 #endif
 312
 313 #ifndef bfd_elfNN_mkarchive
 314 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
 315 #endif
 316
 317 #ifndef bfd_elfNN_print_symbol
 318 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
 319 #endif
 320
 321 #ifndef elf_symbol_leading_char
 322 #define elf_symbol_leading_char 0
 323 #endif
 324
 325 #ifndef elf_info_to_howto
 326 #define elf_info_to_howto 0
 327 #endif
 328
 329 #ifndef elf_info_to_howto_rel
 330 #define elf_info_to_howto_rel 0
 331 #endif
 332
 333 #ifndef elf_backend_arch_data
 334 #define elf_backend_arch_data NULL
 335 #endif
 336
 337 #ifndef ELF_TARGET_ID
 338 #define ELF_TARGET_ID   GENERIC_ELF_DATA
 339 #endif
 340
 341 #ifndef ELF_OSABI
 342 #define ELF_OSABI ELFOSABI_NONE
 343 #endif
 344
 345 #ifndef ELF_MAXPAGESIZE
 346 # error ELF_MAXPAGESIZE is not defined
 347 #define ELF_MAXPAGESIZE 1
 348 #endif
 349
 350 #ifndef ELF_COMMONPAGESIZE
 351 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
 352 #endif
 353
 354 #ifndef ELF_MINPAGESIZE
 355 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
 356 #endif
 357
 358 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
 359 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
 360 #endif
 361 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
 362 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
 363 #endif
 364
 365 #ifndef ELF_DYNAMIC_SEC_FLAGS
 366 /* Note that we set the SEC_IN_MEMORY flag for these sections.  */
 367 #define ELF_DYNAMIC_SEC_FLAGS                   \
 368   (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS      \
 369    | SEC_IN_MEMORY | SEC_LINKER_CREATED)
 370 #endif
 371
 372 #ifndef elf_backend_collect
 373 #define elf_backend_collect FALSE
 374 #endif
 375 #ifndef elf_backend_type_change_ok
 376 #define elf_backend_type_change_ok FALSE
 377 #endif
 378
 379 #ifndef elf_backend_sym_is_global
 380 #define elf_backend_sym_is_global       0
 381 #endif
 382 #ifndef elf_backend_object_p
 383 #define elf_backend_object_p            0
 384 #endif
 385 #ifndef elf_backend_symbol_processing
 386 #define elf_backend_symbol_processing   0
 387 #endif
 388 #ifndef elf_backend_symbol_table_processing
 389 #define elf_backend_symbol_table_processing     0
 390 #endif
 391 #ifndef elf_backend_get_symbol_type
 392 #define elf_backend_get_symbol_type 0
 393 #endif
 394 #ifndef elf_backend_archive_symbol_lookup
 395 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
 396 #endif
 397 #ifndef elf_backend_name_local_section_symbols
 398 #define elf_backend_name_local_section_symbols  0
 399 #endif
 400 #ifndef elf_backend_section_processing
 401 #define elf_backend_section_processing  0
 402 #endif
 403 #ifndef elf_backend_section_from_shdr
 404 #define elf_backend_section_from_shdr   _bfd_elf_make_section_from_shdr
 405 #endif
 406 #ifndef elf_backend_section_flags
 407 #define elf_backend_section_flags       0
 408 #endif
 409 #ifndef elf_backend_get_sec_type_attr
 410 #define elf_backend_get_sec_type_attr   _bfd_elf_get_sec_type_attr
 411 #endif
 412 #ifndef elf_backend_section_from_phdr
 413 #define elf_backend_section_from_phdr   _bfd_elf_make_section_from_phdr
 414 #endif
 415 #ifndef elf_backend_fake_sections
 416 #define elf_backend_fake_sections       0
 417 #endif
 418 #ifndef elf_backend_section_from_bfd_section
 419 #define elf_backend_section_from_bfd_section    0
 420 #endif
 421 #ifndef elf_backend_add_symbol_hook
 422 #define elf_backend_add_symbol_hook     0
 423 #endif
 424 #ifndef elf_backend_link_output_symbol_hook
 425 #define elf_backend_link_output_symbol_hook 0
 426 #endif
 427 #ifndef elf_backend_create_dynamic_sections
 428 #define elf_backend_create_dynamic_sections 0
 429 #endif
 430 #ifndef elf_backend_omit_section_dynsym
 431 #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym
 432 #endif
 433 #ifndef elf_backend_relocs_compatible
 434 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
 435 #endif
 436 #ifndef elf_backend_check_relocs
 437 #define elf_backend_check_relocs        0
 438 #endif
 439 #ifndef elf_backend_check_directives
 440 #define elf_backend_check_directives    0
 441 #endif
 442 #ifndef elf_backend_notice_as_needed
 443 #define elf_backend_notice_as_needed    _bfd_elf_notice_as_needed
 444 #endif
 445 #ifndef elf_backend_adjust_dynamic_symbol
 446 #define elf_backend_adjust_dynamic_symbol 0
 447 #endif
 448 #ifndef elf_backend_always_size_sections
 449 #define elf_backend_always_size_sections 0
 450 #endif
 451 #ifndef elf_backend_size_dynamic_sections
 452 #define elf_backend_size_dynamic_sections 0
 453 #endif
 454 #ifndef elf_backend_init_index_section
 455 #define elf_backend_init_index_section \
 456  ((void (*) (bfd *, struct bfd_link_info *)) bfd_void)
 457 #endif
 458 #ifndef elf_backend_relocate_section
 459 #define elf_backend_relocate_section    0
 460 #endif
 461 #ifndef elf_backend_finish_dynamic_symbol
 462 #define elf_backend_finish_dynamic_symbol       0
 463 #endif
 464 #ifndef elf_backend_finish_dynamic_sections
 465 #define elf_backend_finish_dynamic_sections     0
 466 #endif
 467 #ifndef elf_backend_begin_write_processing
 468 #define elf_backend_begin_write_processing      0
 469 #endif
 470 #ifndef elf_backend_final_write_processing
 471 #define elf_backend_final_write_processing      0
 472 #endif
 473 #ifndef elf_backend_additional_program_headers
 474 #define elf_backend_additional_program_headers  0
 475 #endif
 476 #ifndef elf_backend_modify_segment_map
 477 #define elf_backend_modify_segment_map  0
 478 #endif
 479 #ifndef elf_backend_modify_program_headers
 480 #define elf_backend_modify_program_headers      0
 481 #endif
 482 #ifndef elf_backend_allow_non_load_phdr
 483 #define elf_backend_allow_non_load_phdr \
 484   ((bfd_boolean (*) (bfd *, const Elf_Internal_Phdr *, unsigned)) bfd_false)
 485 #endif
 486 #ifndef elf_backend_ecoff_debug_swap
 487 #define elf_backend_ecoff_debug_swap    0
 488 #endif
 489 #ifndef elf_backend_bfd_from_remote_memory
 490 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
 491 #endif
 492 #ifndef elf_backend_got_header_size
 493 #define elf_backend_got_header_size     0
 494 #endif
 495 #ifndef elf_backend_got_elt_size
 496 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
 497 #endif
 498 #ifndef elf_backend_obj_attrs_vendor
 499 #define elf_backend_obj_attrs_vendor            NULL
 500 #endif
 501 #ifndef elf_backend_obj_attrs_section
 502 #define elf_backend_obj_attrs_section           NULL
 503 #endif
 504 #ifndef elf_backend_obj_attrs_arg_type
 505 #define elf_backend_obj_attrs_arg_type          NULL
 506 #endif
 507 #ifndef elf_backend_obj_attrs_section_type
 508 #define elf_backend_obj_attrs_section_type              SHT_GNU_ATTRIBUTES
 509 #endif
 510 #ifndef elf_backend_obj_attrs_order
 511 #define elf_backend_obj_attrs_order             NULL
 512 #endif
 513 #ifndef elf_backend_obj_attrs_handle_unknown
 514 #define elf_backend_obj_attrs_handle_unknown    NULL
 515 #endif
 516 #ifndef elf_backend_static_tls_alignment
 517 #define elf_backend_static_tls_alignment        1
 518 #endif
 519 #ifndef elf_backend_post_process_headers
 520 #define elf_backend_post_process_headers        _bfd_elf_post_process_headers
 521 #endif
 522 #ifndef elf_backend_print_symbol_all
 523 #define elf_backend_print_symbol_all            NULL
 524 #endif
 525 #ifndef elf_backend_output_arch_local_syms
 526 #define elf_backend_output_arch_local_syms      NULL
 527 #endif
 528 #ifndef elf_backend_output_arch_syms
 529 #define elf_backend_output_arch_syms            NULL
 530 #endif
 531 #ifndef elf_backend_filter_implib_symbols
 532 #define elf_backend_filter_implib_symbols       NULL
 533 #endif
 534 #ifndef elf_backend_copy_indirect_symbol
 535 #define elf_backend_copy_indirect_symbol        _bfd_elf_link_hash_copy_indirect
 536 #endif
 537 #ifndef elf_backend_hide_symbol
 538 #define elf_backend_hide_symbol                 _bfd_elf_link_hash_hide_symbol
 539 #endif
 540 #ifndef elf_backend_fixup_symbol
 541 #define elf_backend_fixup_symbol                NULL
 542 #endif
 543 #ifndef elf_backend_merge_symbol_attribute
 544 #define elf_backend_merge_symbol_attribute      NULL
 545 #endif
 546 #ifndef elf_backend_get_target_dtag
 547 #define elf_backend_get_target_dtag             NULL
 548 #endif
 549 #ifndef elf_backend_ignore_undef_symbol
 550 #define elf_backend_ignore_undef_symbol         NULL
 551 #endif
 552 #ifndef elf_backend_emit_relocs
 553 #define elf_backend_emit_relocs                 _bfd_elf_link_output_relocs
 554 #endif
 555 #ifndef elf_backend_update_relocs
 556 #define elf_backend_update_relocs               NULL
 557 #endif
 558 #ifndef elf_backend_count_relocs
 559 #define elf_backend_count_relocs                NULL
 560 #endif
 561 #ifndef elf_backend_count_additional_relocs
 562 #define elf_backend_count_additional_relocs     NULL
 563 #endif
 564 #ifndef elf_backend_sort_relocs_p
 565 #define elf_backend_sort_relocs_p               NULL
 566 #endif
 567 #ifndef elf_backend_grok_prstatus
 568 #define elf_backend_grok_prstatus               NULL
 569 #endif
 570 #ifndef elf_backend_grok_psinfo
 571 #define elf_backend_grok_psinfo                 NULL
 572 #endif
 573 #ifndef elf_backend_write_core_note
 574 #define elf_backend_write_core_note             NULL
 575 #endif
 576 #ifndef elf_backend_lookup_section_flags_hook
 577 #define elf_backend_lookup_section_flags_hook   NULL
 578 #endif
 579 #ifndef elf_backend_reloc_type_class
 580 #define elf_backend_reloc_type_class            _bfd_elf_reloc_type_class
 581 #endif
 582 #ifndef elf_backend_discard_info
 583 #define elf_backend_discard_info                NULL
 584 #endif
 585 #ifndef elf_backend_ignore_discarded_relocs
 586 #define elf_backend_ignore_discarded_relocs     NULL
 587 #endif
 588 #ifndef elf_backend_action_discarded
 589 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
 590 #endif
 591 #ifndef elf_backend_eh_frame_address_size
 592 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
 593 #endif
 594 #ifndef elf_backend_can_make_relative_eh_frame
 595 #define elf_backend_can_make_relative_eh_frame  _bfd_elf_can_make_relative
 596 #endif
 597 #ifndef elf_backend_can_make_lsda_relative_eh_frame
 598 #define elf_backend_can_make_lsda_relative_eh_frame     _bfd_elf_can_make_relative
 599 #endif
 600 #ifndef elf_backend_encode_eh_address
 601 #define elf_backend_encode_eh_address           _bfd_elf_encode_eh_address
 602 #endif
 603 #ifndef elf_backend_write_section
 604 #define elf_backend_write_section               NULL
 605 #endif
 606 #ifndef elf_backend_mips_irix_compat
 607 #define elf_backend_mips_irix_compat            NULL
 608 #endif
 609 #ifndef elf_backend_mips_rtype_to_howto
 610 #define elf_backend_mips_rtype_to_howto         NULL
 611 #endif
 612
 613 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
 614    sections, but not both.  They defined USE_REL to indicate SHT_REL
 615    sections, and left it undefined to indicated SHT_RELA sections.
 616    For backwards compatibility, we still support this usage.  */
 617 #ifndef USE_REL
 618 #define USE_REL 0
 619 #endif
 620
 621 /* Use these in new code.  */
 622 #ifndef elf_backend_may_use_rel_p
 623 #define elf_backend_may_use_rel_p USE_REL
 624 #endif
 625 #ifndef elf_backend_may_use_rela_p
 626 #define elf_backend_may_use_rela_p !USE_REL
 627 #endif
 628 #ifndef elf_backend_default_use_rela_p
 629 #define elf_backend_default_use_rela_p !USE_REL
 630 #endif
 631 #ifndef elf_backend_rela_plts_and_copies_p
 632 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
 633 #endif
 634
 635 #ifndef elf_backend_rela_normal
 636 #define elf_backend_rela_normal 0
 637 #endif
 638
 639 #ifndef elf_backend_dtrel_excludes_plt
 640 #define elf_backend_dtrel_excludes_plt 0
 641 #endif
 642
 643 #ifndef elf_backend_plt_sym_val
 644 #define elf_backend_plt_sym_val NULL
 645 #endif
 646 #ifndef elf_backend_relplt_name
 647 #define elf_backend_relplt_name NULL
 648 #endif
 649
 650 #ifndef ELF_MACHINE_ALT1
 651 #define ELF_MACHINE_ALT1 0
 652 #endif
 653
 654 #ifndef ELF_MACHINE_ALT2
 655 #define ELF_MACHINE_ALT2 0
 656 #endif
 657
 658 #ifndef elf_backend_size_info
 659 #define elf_backend_size_info _bfd_elfNN_size_info
 660 #endif
 661
 662 #ifndef elf_backend_special_sections
 663 #define elf_backend_special_sections NULL
 664 #endif
 665
 666 #ifndef elf_backend_sign_extend_vma
 667 #define elf_backend_sign_extend_vma 0
 668 #endif
 669
 670 #ifndef elf_backend_link_order_error_handler
 671 #define elf_backend_link_order_error_handler _bfd_error_handler
 672 #endif
 673
 674 #ifndef elf_backend_common_definition
 675 #define elf_backend_common_definition _bfd_elf_common_definition
 676 #endif
 677
 678 #ifndef elf_backend_common_section_index
 679 #define elf_backend_common_section_index _bfd_elf_common_section_index
 680 #endif
 681
 682 #ifndef elf_backend_common_section
 683 #define elf_backend_common_section _bfd_elf_common_section
 684 #endif
 685
 686 #ifndef elf_backend_merge_symbol
 687 #define elf_backend_merge_symbol NULL
 688 #endif
 689
 690 #ifndef elf_backend_hash_symbol
 691 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
 692 #endif
 693
 694 #ifndef elf_backend_is_function_type
 695 #define elf_backend_is_function_type _bfd_elf_is_function_type
 696 #endif
 697
 698 #ifndef elf_backend_maybe_function_sym
 699 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
 700 #endif
 701
 702 #ifndef elf_backend_get_reloc_section
 703 #define elf_backend_get_reloc_section _bfd_elf_get_reloc_section
 704 #endif
 705
 706 #ifndef elf_backend_copy_special_section_fields
 707 #define elf_backend_copy_special_section_fields NULL
 708 #endif
 709
 710 #ifndef elf_backend_compact_eh_encoding
 711 #define elf_backend_compact_eh_encoding NULL
 712 #endif
 713
 714 #ifndef elf_backend_cant_unwind_opcode
 715 #define elf_backend_cant_unwind_opcode 0
 716 #endif
 717
 718 #ifndef elf_match_priority
 719 #define elf_match_priority \
 720   (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
 721 #endif
 722
 723 extern const struct elf_size_info _bfd_elfNN_size_info;
 724
 725 static struct elf_backend_data elfNN_bed =
 726 {
 727   ELF_ARCH,                     /* arch */
 728   ELF_TARGET_ID,                /* target_id */
 729   ELF_MACHINE_CODE,             /* elf_machine_code */
 730   ELF_OSABI,                    /* elf_osabi  */
 731   ELF_MAXPAGESIZE,              /* maxpagesize */
 732   ELF_MINPAGESIZE,              /* minpagesize */
 733   ELF_COMMONPAGESIZE,           /* commonpagesize */
 734   ELF_DYNAMIC_SEC_FLAGS,        /* dynamic_sec_flags */
 735   elf_backend_arch_data,
 736   elf_info_to_howto,
 737   elf_info_to_howto_rel,
 738   elf_backend_sym_is_global,
 739   elf_backend_object_p,
 740   elf_backend_symbol_processing,
 741   elf_backend_symbol_table_processing,
 742   elf_backend_get_symbol_type,
 743   elf_backend_archive_symbol_lookup,
 744   elf_backend_name_local_section_symbols,
 745   elf_backend_section_processing,
 746   elf_backend_section_from_shdr,
 747   elf_backend_section_flags,
 748   elf_backend_get_sec_type_attr,
 749   elf_backend_section_from_phdr,
 750   elf_backend_fake_sections,
 751   elf_backend_section_from_bfd_section,
 752   elf_backend_add_symbol_hook,
 753   elf_backend_link_output_symbol_hook,
 754   elf_backend_create_dynamic_sections,
 755   elf_backend_omit_section_dynsym,
 756   elf_backend_relocs_compatible,
 757   elf_backend_check_relocs,
 758   elf_backend_check_directives,
 759   elf_backend_notice_as_needed,
 760   elf_backend_adjust_dynamic_symbol,
 761   elf_backend_always_size_sections,
 762   elf_backend_size_dynamic_sections,
 763   elf_backend_init_index_section,
 764   elf_backend_relocate_section,
 765   elf_backend_finish_dynamic_symbol,
 766   elf_backend_finish_dynamic_sections,
 767   elf_backend_begin_write_processing,
 768   elf_backend_final_write_processing,
 769   elf_backend_additional_program_headers,
 770   elf_backend_modify_segment_map,
 771   elf_backend_modify_program_headers,
 772   elf_backend_allow_non_load_phdr,
 773   elf_backend_gc_keep,
 774   elf_backend_gc_mark_dynamic_ref,
 775   elf_backend_gc_mark_hook,
 776   elf_backend_gc_mark_extra_sections,
 777   elf_backend_gc_sweep_hook,
 778   elf_backend_post_process_headers,
 779   elf_backend_print_symbol_all,
 780   elf_backend_output_arch_local_syms,
 781   elf_backend_output_arch_syms,
 782   elf_backend_filter_implib_symbols,
 783   elf_backend_copy_indirect_symbol,
 784   elf_backend_hide_symbol,
 785   elf_backend_fixup_symbol,
 786   elf_backend_merge_symbol_attribute,
 787   elf_backend_get_target_dtag,
 788   elf_backend_ignore_undef_symbol,
 789   elf_backend_emit_relocs,
 790   elf_backend_update_relocs,
 791   elf_backend_count_relocs,
 792   elf_backend_count_additional_relocs,
 793   elf_backend_sort_relocs_p,
 794   elf_backend_grok_prstatus,
 795   elf_backend_grok_psinfo,
 796   elf_backend_write_core_note,
 797   elf_backend_lookup_section_flags_hook,
 798   elf_backend_reloc_type_class,
 799   elf_backend_discard_info,
 800   elf_backend_ignore_discarded_relocs,
 801   elf_backend_action_discarded,
 802   elf_backend_eh_frame_address_size,
 803   elf_backend_can_make_relative_eh_frame,
 804   elf_backend_can_make_lsda_relative_eh_frame,
 805   elf_backend_encode_eh_address,
 806   elf_backend_write_section,
 807   elf_backend_mips_irix_compat,
 808   elf_backend_mips_rtype_to_howto,
 809   elf_backend_ecoff_debug_swap,
 810   elf_backend_bfd_from_remote_memory,
 811   elf_backend_plt_sym_val,
 812   elf_backend_common_definition,
 813   elf_backend_common_section_index,
 814   elf_backend_common_section,
 815   elf_backend_merge_symbol,
 816   elf_backend_hash_symbol,
 817   elf_backend_is_function_type,
 818   elf_backend_maybe_function_sym,
 819   elf_backend_get_reloc_section,
 820   elf_backend_copy_special_section_fields,
 821   elf_backend_link_order_error_handler,
 822   elf_backend_relplt_name,
 823   ELF_MACHINE_ALT1,
 824   ELF_MACHINE_ALT2,
 825   &elf_backend_size_info,
 826   elf_backend_special_sections,
 827   elf_backend_got_header_size,
 828   elf_backend_got_elt_size,
 829   elf_backend_obj_attrs_vendor,
 830   elf_backend_obj_attrs_section,
 831   elf_backend_obj_attrs_arg_type,
 832   elf_backend_obj_attrs_section_type,
 833   elf_backend_obj_attrs_order,
 834   elf_backend_obj_attrs_handle_unknown,
 835   elf_backend_compact_eh_encoding,
 836   elf_backend_cant_unwind_opcode,
 837   elf_backend_static_tls_alignment,
 838   elf_backend_stack_align,
 839   elf_backend_strtab_flags,
 840   elf_backend_collect,
 841   elf_backend_type_change_ok,
 842   elf_backend_may_use_rel_p,
 843   elf_backend_may_use_rela_p,
 844   elf_backend_default_use_rela_p,
 845   elf_backend_rela_plts_and_copies_p,
 846   elf_backend_rela_normal,
 847   elf_backend_dtrel_excludes_plt,
 848   elf_backend_sign_extend_vma,
 849   elf_backend_want_got_plt,
 850   elf_backend_plt_readonly,
 851   elf_backend_want_plt_sym,
 852   elf_backend_plt_not_loaded,
 853   elf_backend_plt_alignment,
 854   elf_backend_can_gc_sections,
 855   elf_backend_can_refcount,
 856   elf_backend_want_got_sym,
 857   elf_backend_want_dynbss,
 858   elf_backend_want_p_paddr_set_to_zero,
 859   elf_backend_default_execstack,
 860   elf_backend_caches_rawsize,
 861   elf_backend_extern_protected_data
 862 };
 863
 864 /* Forward declaration for use when initialising alternative_target field.  */
 865 #ifdef TARGET_LITTLE_SYM
 866 extern const bfd_target TARGET_LITTLE_SYM;
 867 #endif
 868
 869 #ifdef TARGET_BIG_SYM
 870 const bfd_target TARGET_BIG_SYM =
 871 {
 872   /* name: identify kind of target */
 873   TARGET_BIG_NAME,
 874
 875   /* flavour: general indication about file */
 876   bfd_target_elf_flavour,
 877
 878   /* byteorder: data is big endian */
 879   BFD_ENDIAN_BIG,
 880
 881   /* header_byteorder: header is also big endian */
 882   BFD_ENDIAN_BIG,
 883
 884   /* object_flags: mask of all file flags */
 885   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
 886    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
 887    | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
 888
 889   /* section_flags: mask of all section flags */
 890   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
 891    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
 892    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
 893
 894    /* leading_symbol_char: is the first char of a user symbol
 895       predictable, and if so what is it */
 896   elf_symbol_leading_char,
 897
 898   /* ar_pad_char: pad character for filenames within an archive header
 899      FIXME:  this really has nothing to do with ELF, this is a characteristic
 900      of the archiver and/or os and should be independently tunable */
 901   '/',
 902
 903   /* ar_max_namelen: maximum number of characters in an archive header
 904      FIXME:  this really has nothing to do with ELF, this is a characteristic
 905      of the archiver and should be independently tunable.  The System V ABI,
 906      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
 907   15,
 908
 909   elf_match_priority,
 910
 911   /* Routines to byte-swap various sized integers from the data sections */
 912   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 913     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 914     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 915
 916   /* Routines to byte-swap various sized integers from the file headers */
 917   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 918     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 919     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 920
 921   /* bfd_check_format: check the format of a file being read */
 922   { _bfd_dummy_target,          /* unknown format */
 923     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
 924     bfd_elfNN_archive_p,        /* an archive */
 925     bfd_elfNN_core_file_p       /* a core file */
 926   },
 927
 928   /* bfd_set_format: set the format of a file being written */
 929   { bfd_false,
 930     bfd_elfNN_mkobject,
 931     bfd_elfNN_mkarchive,
 932     bfd_elfNN_mkcorefile
 933   },
 934
 935   /* bfd_write_contents: write cached information into a file being written */
 936   { bfd_false,
 937     bfd_elfNN_write_object_contents,
 938     bfd_elfNN_write_archive_contents,
 939     bfd_elfNN_write_corefile_contents,
 940   },
 941
 942   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
 943   BFD_JUMP_TABLE_COPY (bfd_elfNN),
 944   BFD_JUMP_TABLE_CORE (bfd_elfNN),
 945 #ifdef bfd_elfNN_archive_functions
 946   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
 947 #elif defined USE_64_BIT_ARCHIVE
 948   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
 949 #else
 950   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 951 #endif
 952   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
 953   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
 954   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
 955   BFD_JUMP_TABLE_LINK (bfd_elfNN),
 956   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
 957
 958   /* Alternative endian target.  */
 959 #ifdef TARGET_LITTLE_SYM
 960   & TARGET_LITTLE_SYM,
 961 #else
 962   NULL,
 963 #endif
 964
 965   /* backend_data: */
 966   &elfNN_bed
 967 };
 968 #endif
 969
 970 #ifdef TARGET_LITTLE_SYM
 971 const bfd_target TARGET_LITTLE_SYM =
 972 {
 973   /* name: identify kind of target */
 974   TARGET_LITTLE_NAME,
 975
 976   /* flavour: general indication about file */
 977   bfd_target_elf_flavour,
 978
 979   /* byteorder: data is little endian */
 980   BFD_ENDIAN_LITTLE,
 981
 982   /* header_byteorder: header is also little endian */
 983   BFD_ENDIAN_LITTLE,
 984
 985   /* object_flags: mask of all file flags */
 986   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
 987    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
 988    | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
 989
 990   /* section_flags: mask of all section flags */
 991   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
 992    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
 993    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
 994
 995    /* leading_symbol_char: is the first char of a user symbol
 996       predictable, and if so what is it */
 997   elf_symbol_leading_char,
 998
 999   /* ar_pad_char: pad character for filenames within an archive header
1000      FIXME:  this really has nothing to do with ELF, this is a characteristic
1001      of the archiver and/or os and should be independently tunable */
1002   '/',
1003
1004   /* ar_max_namelen: maximum number of characters in an archive header
1005      FIXME:  this really has nothing to do with ELF, this is a characteristic
1006      of the archiver and should be independently tunable.  The System V ABI,
1007      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
1008   15,
1009
1010   elf_match_priority,
1011
1012   /* Routines to byte-swap various sized integers from the data sections */
1013   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1014     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1015     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1016
1017   /* Routines to byte-swap various sized integers from the file headers */
1018   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1019     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1020     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1021
1022   /* bfd_check_format: check the format of a file being read */
1023   { _bfd_dummy_target,          /* unknown format */
1024     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
1025     bfd_elfNN_archive_p,        /* an archive */
1026     bfd_elfNN_core_file_p       /* a core file */
1027   },
1028
1029   /* bfd_set_format: set the format of a file being written */
1030   { bfd_false,
1031     bfd_elfNN_mkobject,
1032     bfd_elfNN_mkarchive,
1033     bfd_elfNN_mkcorefile
1034   },
1035
1036   /* bfd_write_contents: write cached information into a file being written */
1037   { bfd_false,
1038     bfd_elfNN_write_object_contents,
1039     bfd_elfNN_write_archive_contents,
1040     bfd_elfNN_write_corefile_contents,
1041   },
1042
1043   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
1044   BFD_JUMP_TABLE_COPY (bfd_elfNN),
1045   BFD_JUMP_TABLE_CORE (bfd_elfNN),
1046 #ifdef bfd_elfNN_archive_functions
1047   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
1048 #elif defined USE_64_BIT_ARCHIVE
1049   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
1050 #else
1051   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
1052 #endif
1053   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
1054   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
1055   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
1056   BFD_JUMP_TABLE_LINK (bfd_elfNN),
1057   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
1058
1059   /* Alternative endian target.  */
1060 #ifdef TARGET_BIG_SYM
1061   & TARGET_BIG_SYM,
1062 #else
1063   NULL,
1064 #endif
1065
1066   /* backend_data: */
1067   &elfNN_bed
1068 };
1069 #endif