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_ecoff_debug_swap
 483 #define elf_backend_ecoff_debug_swap    0
 484 #endif
 485 #ifndef elf_backend_bfd_from_remote_memory
 486 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
 487 #endif
 488 #ifndef elf_backend_got_header_size
 489 #define elf_backend_got_header_size     0
 490 #endif
 491 #ifndef elf_backend_got_elt_size
 492 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
 493 #endif
 494 #ifndef elf_backend_obj_attrs_vendor
 495 #define elf_backend_obj_attrs_vendor            NULL
 496 #endif
 497 #ifndef elf_backend_obj_attrs_section
 498 #define elf_backend_obj_attrs_section           NULL
 499 #endif
 500 #ifndef elf_backend_obj_attrs_arg_type
 501 #define elf_backend_obj_attrs_arg_type          NULL
 502 #endif
 503 #ifndef elf_backend_obj_attrs_section_type
 504 #define elf_backend_obj_attrs_section_type              SHT_GNU_ATTRIBUTES
 505 #endif
 506 #ifndef elf_backend_obj_attrs_order
 507 #define elf_backend_obj_attrs_order             NULL
 508 #endif
 509 #ifndef elf_backend_obj_attrs_handle_unknown
 510 #define elf_backend_obj_attrs_handle_unknown    NULL
 511 #endif
 512 #ifndef elf_backend_static_tls_alignment
 513 #define elf_backend_static_tls_alignment        1
 514 #endif
 515 #ifndef elf_backend_post_process_headers
 516 #define elf_backend_post_process_headers        _bfd_elf_post_process_headers
 517 #endif
 518 #ifndef elf_backend_print_symbol_all
 519 #define elf_backend_print_symbol_all            NULL
 520 #endif
 521 #ifndef elf_backend_output_arch_local_syms
 522 #define elf_backend_output_arch_local_syms      NULL
 523 #endif
 524 #ifndef elf_backend_output_arch_syms
 525 #define elf_backend_output_arch_syms            NULL
 526 #endif
 527 #ifndef elf_backend_filter_implib_symbols
 528 #define elf_backend_filter_implib_symbols       NULL
 529 #endif
 530 #ifndef elf_backend_copy_indirect_symbol
 531 #define elf_backend_copy_indirect_symbol        _bfd_elf_link_hash_copy_indirect
 532 #endif
 533 #ifndef elf_backend_hide_symbol
 534 #define elf_backend_hide_symbol                 _bfd_elf_link_hash_hide_symbol
 535 #endif
 536 #ifndef elf_backend_fixup_symbol
 537 #define elf_backend_fixup_symbol                NULL
 538 #endif
 539 #ifndef elf_backend_merge_symbol_attribute
 540 #define elf_backend_merge_symbol_attribute      NULL
 541 #endif
 542 #ifndef elf_backend_get_target_dtag
 543 #define elf_backend_get_target_dtag             NULL
 544 #endif
 545 #ifndef elf_backend_ignore_undef_symbol
 546 #define elf_backend_ignore_undef_symbol         NULL
 547 #endif
 548 #ifndef elf_backend_emit_relocs
 549 #define elf_backend_emit_relocs                 _bfd_elf_link_output_relocs
 550 #endif
 551 #ifndef elf_backend_update_relocs
 552 #define elf_backend_update_relocs               NULL
 553 #endif
 554 #ifndef elf_backend_count_relocs
 555 #define elf_backend_count_relocs                NULL
 556 #endif
 557 #ifndef elf_backend_count_additional_relocs
 558 #define elf_backend_count_additional_relocs     NULL
 559 #endif
 560 #ifndef elf_backend_sort_relocs_p
 561 #define elf_backend_sort_relocs_p               NULL
 562 #endif
 563 #ifndef elf_backend_grok_prstatus
 564 #define elf_backend_grok_prstatus               NULL
 565 #endif
 566 #ifndef elf_backend_grok_psinfo
 567 #define elf_backend_grok_psinfo                 NULL
 568 #endif
 569 #ifndef elf_backend_write_core_note
 570 #define elf_backend_write_core_note             NULL
 571 #endif
 572 #ifndef elf_backend_lookup_section_flags_hook
 573 #define elf_backend_lookup_section_flags_hook   NULL
 574 #endif
 575 #ifndef elf_backend_reloc_type_class
 576 #define elf_backend_reloc_type_class            _bfd_elf_reloc_type_class
 577 #endif
 578 #ifndef elf_backend_discard_info
 579 #define elf_backend_discard_info                NULL
 580 #endif
 581 #ifndef elf_backend_ignore_discarded_relocs
 582 #define elf_backend_ignore_discarded_relocs     NULL
 583 #endif
 584 #ifndef elf_backend_action_discarded
 585 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
 586 #endif
 587 #ifndef elf_backend_eh_frame_address_size
 588 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
 589 #endif
 590 #ifndef elf_backend_can_make_relative_eh_frame
 591 #define elf_backend_can_make_relative_eh_frame  _bfd_elf_can_make_relative
 592 #endif
 593 #ifndef elf_backend_can_make_lsda_relative_eh_frame
 594 #define elf_backend_can_make_lsda_relative_eh_frame     _bfd_elf_can_make_relative
 595 #endif
 596 #ifndef elf_backend_encode_eh_address
 597 #define elf_backend_encode_eh_address           _bfd_elf_encode_eh_address
 598 #endif
 599 #ifndef elf_backend_write_section
 600 #define elf_backend_write_section               NULL
 601 #endif
 602 #ifndef elf_backend_mips_irix_compat
 603 #define elf_backend_mips_irix_compat            NULL
 604 #endif
 605 #ifndef elf_backend_mips_rtype_to_howto
 606 #define elf_backend_mips_rtype_to_howto         NULL
 607 #endif
 608
 609 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
 610    sections, but not both.  They defined USE_REL to indicate SHT_REL
 611    sections, and left it undefined to indicated SHT_RELA sections.
 612    For backwards compatibility, we still support this usage.  */
 613 #ifndef USE_REL
 614 #define USE_REL 0
 615 #endif
 616
 617 /* Use these in new code.  */
 618 #ifndef elf_backend_may_use_rel_p
 619 #define elf_backend_may_use_rel_p USE_REL
 620 #endif
 621 #ifndef elf_backend_may_use_rela_p
 622 #define elf_backend_may_use_rela_p !USE_REL
 623 #endif
 624 #ifndef elf_backend_default_use_rela_p
 625 #define elf_backend_default_use_rela_p !USE_REL
 626 #endif
 627 #ifndef elf_backend_rela_plts_and_copies_p
 628 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
 629 #endif
 630
 631 #ifndef elf_backend_rela_normal
 632 #define elf_backend_rela_normal 0
 633 #endif
 634
 635 #ifndef elf_backend_plt_sym_val
 636 #define elf_backend_plt_sym_val NULL
 637 #endif
 638 #ifndef elf_backend_relplt_name
 639 #define elf_backend_relplt_name NULL
 640 #endif
 641
 642 #ifndef ELF_MACHINE_ALT1
 643 #define ELF_MACHINE_ALT1 0
 644 #endif
 645
 646 #ifndef ELF_MACHINE_ALT2
 647 #define ELF_MACHINE_ALT2 0
 648 #endif
 649
 650 #ifndef elf_backend_size_info
 651 #define elf_backend_size_info _bfd_elfNN_size_info
 652 #endif
 653
 654 #ifndef elf_backend_special_sections
 655 #define elf_backend_special_sections NULL
 656 #endif
 657
 658 #ifndef elf_backend_sign_extend_vma
 659 #define elf_backend_sign_extend_vma 0
 660 #endif
 661
 662 #ifndef elf_backend_link_order_error_handler
 663 #define elf_backend_link_order_error_handler _bfd_error_handler
 664 #endif
 665
 666 #ifndef elf_backend_common_definition
 667 #define elf_backend_common_definition _bfd_elf_common_definition
 668 #endif
 669
 670 #ifndef elf_backend_common_section_index
 671 #define elf_backend_common_section_index _bfd_elf_common_section_index
 672 #endif
 673
 674 #ifndef elf_backend_common_section
 675 #define elf_backend_common_section _bfd_elf_common_section
 676 #endif
 677
 678 #ifndef elf_backend_merge_symbol
 679 #define elf_backend_merge_symbol NULL
 680 #endif
 681
 682 #ifndef elf_backend_hash_symbol
 683 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
 684 #endif
 685
 686 #ifndef elf_backend_is_function_type
 687 #define elf_backend_is_function_type _bfd_elf_is_function_type
 688 #endif
 689
 690 #ifndef elf_backend_maybe_function_sym
 691 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
 692 #endif
 693
 694 #ifndef elf_backend_get_reloc_section
 695 #define elf_backend_get_reloc_section _bfd_elf_get_reloc_section
 696 #endif
 697
 698 #ifndef elf_backend_copy_special_section_fields
 699 #define elf_backend_copy_special_section_fields NULL
 700 #endif
 701
 702 #ifndef elf_backend_compact_eh_encoding
 703 #define elf_backend_compact_eh_encoding NULL
 704 #endif
 705
 706 #ifndef elf_backend_cant_unwind_opcode
 707 #define elf_backend_cant_unwind_opcode 0
 708 #endif
 709
 710 #ifndef elf_match_priority
 711 #define elf_match_priority \
 712   (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
 713 #endif
 714
 715 extern const struct elf_size_info _bfd_elfNN_size_info;
 716
 717 static struct elf_backend_data elfNN_bed =
 718 {
 719   ELF_ARCH,                     /* arch */
 720   ELF_TARGET_ID,                /* target_id */
 721   ELF_MACHINE_CODE,             /* elf_machine_code */
 722   ELF_OSABI,                    /* elf_osabi  */
 723   ELF_MAXPAGESIZE,              /* maxpagesize */
 724   ELF_MINPAGESIZE,              /* minpagesize */
 725   ELF_COMMONPAGESIZE,           /* commonpagesize */
 726   ELF_DYNAMIC_SEC_FLAGS,        /* dynamic_sec_flags */
 727   elf_backend_arch_data,
 728   elf_info_to_howto,
 729   elf_info_to_howto_rel,
 730   elf_backend_sym_is_global,
 731   elf_backend_object_p,
 732   elf_backend_symbol_processing,
 733   elf_backend_symbol_table_processing,
 734   elf_backend_get_symbol_type,
 735   elf_backend_archive_symbol_lookup,
 736   elf_backend_name_local_section_symbols,
 737   elf_backend_section_processing,
 738   elf_backend_section_from_shdr,
 739   elf_backend_section_flags,
 740   elf_backend_get_sec_type_attr,
 741   elf_backend_section_from_phdr,
 742   elf_backend_fake_sections,
 743   elf_backend_section_from_bfd_section,
 744   elf_backend_add_symbol_hook,
 745   elf_backend_link_output_symbol_hook,
 746   elf_backend_create_dynamic_sections,
 747   elf_backend_omit_section_dynsym,
 748   elf_backend_relocs_compatible,
 749   elf_backend_check_relocs,
 750   elf_backend_check_directives,
 751   elf_backend_notice_as_needed,
 752   elf_backend_adjust_dynamic_symbol,
 753   elf_backend_always_size_sections,
 754   elf_backend_size_dynamic_sections,
 755   elf_backend_init_index_section,
 756   elf_backend_relocate_section,
 757   elf_backend_finish_dynamic_symbol,
 758   elf_backend_finish_dynamic_sections,
 759   elf_backend_begin_write_processing,
 760   elf_backend_final_write_processing,
 761   elf_backend_additional_program_headers,
 762   elf_backend_modify_segment_map,
 763   elf_backend_modify_program_headers,
 764   elf_backend_gc_keep,
 765   elf_backend_gc_mark_dynamic_ref,
 766   elf_backend_gc_mark_hook,
 767   elf_backend_gc_mark_extra_sections,
 768   elf_backend_gc_sweep_hook,
 769   elf_backend_post_process_headers,
 770   elf_backend_print_symbol_all,
 771   elf_backend_output_arch_local_syms,
 772   elf_backend_output_arch_syms,
 773   elf_backend_filter_implib_symbols,
 774   elf_backend_copy_indirect_symbol,
 775   elf_backend_hide_symbol,
 776   elf_backend_fixup_symbol,
 777   elf_backend_merge_symbol_attribute,
 778   elf_backend_get_target_dtag,
 779   elf_backend_ignore_undef_symbol,
 780   elf_backend_emit_relocs,
 781   elf_backend_update_relocs,
 782   elf_backend_count_relocs,
 783   elf_backend_count_additional_relocs,
 784   elf_backend_sort_relocs_p,
 785   elf_backend_grok_prstatus,
 786   elf_backend_grok_psinfo,
 787   elf_backend_write_core_note,
 788   elf_backend_lookup_section_flags_hook,
 789   elf_backend_reloc_type_class,
 790   elf_backend_discard_info,
 791   elf_backend_ignore_discarded_relocs,
 792   elf_backend_action_discarded,
 793   elf_backend_eh_frame_address_size,
 794   elf_backend_can_make_relative_eh_frame,
 795   elf_backend_can_make_lsda_relative_eh_frame,
 796   elf_backend_encode_eh_address,
 797   elf_backend_write_section,
 798   elf_backend_mips_irix_compat,
 799   elf_backend_mips_rtype_to_howto,
 800   elf_backend_ecoff_debug_swap,
 801   elf_backend_bfd_from_remote_memory,
 802   elf_backend_plt_sym_val,
 803   elf_backend_common_definition,
 804   elf_backend_common_section_index,
 805   elf_backend_common_section,
 806   elf_backend_merge_symbol,
 807   elf_backend_hash_symbol,
 808   elf_backend_is_function_type,
 809   elf_backend_maybe_function_sym,
 810   elf_backend_get_reloc_section,
 811   elf_backend_copy_special_section_fields,
 812   elf_backend_link_order_error_handler,
 813   elf_backend_relplt_name,
 814   ELF_MACHINE_ALT1,
 815   ELF_MACHINE_ALT2,
 816   &elf_backend_size_info,
 817   elf_backend_special_sections,
 818   elf_backend_got_header_size,
 819   elf_backend_got_elt_size,
 820   elf_backend_obj_attrs_vendor,
 821   elf_backend_obj_attrs_section,
 822   elf_backend_obj_attrs_arg_type,
 823   elf_backend_obj_attrs_section_type,
 824   elf_backend_obj_attrs_order,
 825   elf_backend_obj_attrs_handle_unknown,
 826   elf_backend_compact_eh_encoding,
 827   elf_backend_cant_unwind_opcode,
 828   elf_backend_static_tls_alignment,
 829   elf_backend_stack_align,
 830   elf_backend_strtab_flags,
 831   elf_backend_collect,
 832   elf_backend_type_change_ok,
 833   elf_backend_may_use_rel_p,
 834   elf_backend_may_use_rela_p,
 835   elf_backend_default_use_rela_p,
 836   elf_backend_rela_plts_and_copies_p,
 837   elf_backend_rela_normal,
 838   elf_backend_sign_extend_vma,
 839   elf_backend_want_got_plt,
 840   elf_backend_plt_readonly,
 841   elf_backend_want_plt_sym,
 842   elf_backend_plt_not_loaded,
 843   elf_backend_plt_alignment,
 844   elf_backend_can_gc_sections,
 845   elf_backend_can_refcount,
 846   elf_backend_want_got_sym,
 847   elf_backend_want_dynbss,
 848   elf_backend_want_p_paddr_set_to_zero,
 849   elf_backend_default_execstack,
 850   elf_backend_caches_rawsize,
 851   elf_backend_extern_protected_data
 852 };
 853
 854 /* Forward declaration for use when initialising alternative_target field.  */
 855 #ifdef TARGET_LITTLE_SYM
 856 extern const bfd_target TARGET_LITTLE_SYM;
 857 #endif
 858
 859 #ifdef TARGET_BIG_SYM
 860 const bfd_target TARGET_BIG_SYM =
 861 {
 862   /* name: identify kind of target */
 863   TARGET_BIG_NAME,
 864
 865   /* flavour: general indication about file */
 866   bfd_target_elf_flavour,
 867
 868   /* byteorder: data is big endian */
 869   BFD_ENDIAN_BIG,
 870
 871   /* header_byteorder: header is also big endian */
 872   BFD_ENDIAN_BIG,
 873
 874   /* object_flags: mask of all file flags */
 875   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
 876    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
 877    | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
 878
 879   /* section_flags: mask of all section flags */
 880   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
 881    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
 882    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
 883
 884    /* leading_symbol_char: is the first char of a user symbol
 885       predictable, and if so what is it */
 886   elf_symbol_leading_char,
 887
 888   /* ar_pad_char: pad character for filenames within an archive header
 889      FIXME:  this really has nothing to do with ELF, this is a characteristic
 890      of the archiver and/or os and should be independently tunable */
 891   '/',
 892
 893   /* ar_max_namelen: maximum number of characters in an archive header
 894      FIXME:  this really has nothing to do with ELF, this is a characteristic
 895      of the archiver and should be independently tunable.  The System V ABI,
 896      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
 897   15,
 898
 899   elf_match_priority,
 900
 901   /* Routines to byte-swap various sized integers from the data sections */
 902   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 903     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 904     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 905
 906   /* Routines to byte-swap various sized integers from the file headers */
 907   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 908     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 909     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 910
 911   /* bfd_check_format: check the format of a file being read */
 912   { _bfd_dummy_target,          /* unknown format */
 913     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
 914     bfd_elfNN_archive_p,        /* an archive */
 915     bfd_elfNN_core_file_p       /* a core file */
 916   },
 917
 918   /* bfd_set_format: set the format of a file being written */
 919   { bfd_false,
 920     bfd_elfNN_mkobject,
 921     bfd_elfNN_mkarchive,
 922     bfd_elfNN_mkcorefile
 923   },
 924
 925   /* bfd_write_contents: write cached information into a file being written */
 926   { bfd_false,
 927     bfd_elfNN_write_object_contents,
 928     bfd_elfNN_write_archive_contents,
 929     bfd_elfNN_write_corefile_contents,
 930   },
 931
 932   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
 933   BFD_JUMP_TABLE_COPY (bfd_elfNN),
 934   BFD_JUMP_TABLE_CORE (bfd_elfNN),
 935 #ifdef bfd_elfNN_archive_functions
 936   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
 937 #elif defined USE_64_BIT_ARCHIVE
 938   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
 939 #else
 940   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 941 #endif
 942   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
 943   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
 944   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
 945   BFD_JUMP_TABLE_LINK (bfd_elfNN),
 946   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
 947
 948   /* Alternative endian target.  */
 949 #ifdef TARGET_LITTLE_SYM
 950   & TARGET_LITTLE_SYM,
 951 #else
 952   NULL,
 953 #endif
 954
 955   /* backend_data: */
 956   &elfNN_bed
 957 };
 958 #endif
 959
 960 #ifdef TARGET_LITTLE_SYM
 961 const bfd_target TARGET_LITTLE_SYM =
 962 {
 963   /* name: identify kind of target */
 964   TARGET_LITTLE_NAME,
 965
 966   /* flavour: general indication about file */
 967   bfd_target_elf_flavour,
 968
 969   /* byteorder: data is little endian */
 970   BFD_ENDIAN_LITTLE,
 971
 972   /* header_byteorder: header is also little endian */
 973   BFD_ENDIAN_LITTLE,
 974
 975   /* object_flags: mask of all file flags */
 976   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
 977    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
 978    | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
 979
 980   /* section_flags: mask of all section flags */
 981   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
 982    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
 983    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
 984
 985    /* leading_symbol_char: is the first char of a user symbol
 986       predictable, and if so what is it */
 987   elf_symbol_leading_char,
 988
 989   /* ar_pad_char: pad character for filenames within an archive header
 990      FIXME:  this really has nothing to do with ELF, this is a characteristic
 991      of the archiver and/or os and should be independently tunable */
 992   '/',
 993
 994   /* ar_max_namelen: maximum number of characters in an archive header
 995      FIXME:  this really has nothing to do with ELF, this is a characteristic
 996      of the archiver and should be independently tunable.  The System V ABI,
 997      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
 998   15,
 999
1000   elf_match_priority,
1001
1002   /* Routines to byte-swap various sized integers from the data sections */
1003   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1004     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1005     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1006
1007   /* Routines to byte-swap various sized integers from the file headers */
1008   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1009     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1010     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1011
1012   /* bfd_check_format: check the format of a file being read */
1013   { _bfd_dummy_target,          /* unknown format */
1014     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
1015     bfd_elfNN_archive_p,        /* an archive */
1016     bfd_elfNN_core_file_p       /* a core file */
1017   },
1018
1019   /* bfd_set_format: set the format of a file being written */
1020   { bfd_false,
1021     bfd_elfNN_mkobject,
1022     bfd_elfNN_mkarchive,
1023     bfd_elfNN_mkcorefile
1024   },
1025
1026   /* bfd_write_contents: write cached information into a file being written */
1027   { bfd_false,
1028     bfd_elfNN_write_object_contents,
1029     bfd_elfNN_write_archive_contents,
1030     bfd_elfNN_write_corefile_contents,
1031   },
1032
1033   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
1034   BFD_JUMP_TABLE_COPY (bfd_elfNN),
1035   BFD_JUMP_TABLE_CORE (bfd_elfNN),
1036 #ifdef bfd_elfNN_archive_functions
1037   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
1038 #elif defined USE_64_BIT_ARCHIVE
1039   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
1040 #else
1041   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
1042 #endif
1043   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
1044   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
1045   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
1046   BFD_JUMP_TABLE_LINK (bfd_elfNN),
1047   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
1048
1049   /* Alternative endian target.  */
1050 #ifdef TARGET_BIG_SYM
1051   & TARGET_BIG_SYM,
1052 #else
1053   NULL,
1054 #endif
1055
1056   /* backend_data: */
1057   &elfNN_bed
1058 };
1059 #endif