bfd/elfxx-target.h

   1 /* Target definitions for NN-bit ELF
   2    Copyright (C) 1993-2014 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_inliner_info
  53 #define bfd_elfNN_find_inliner_info     _bfd_elf_find_inliner_info
  54 #endif
  55 #define bfd_elfNN_read_minisymbols      _bfd_elf_read_minisymbols
  56 #define bfd_elfNN_minisymbol_to_symbol  _bfd_elf_minisymbol_to_symbol
  57 #define bfd_elfNN_get_dynamic_symtab_upper_bound \
  58   _bfd_elf_get_dynamic_symtab_upper_bound
  59 #define bfd_elfNN_get_lineno            _bfd_elf_get_lineno
  60 #ifndef bfd_elfNN_get_reloc_upper_bound
  61 #define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound
  62 #endif
  63 #ifndef bfd_elfNN_get_symbol_info
  64 #define bfd_elfNN_get_symbol_info       _bfd_elf_get_symbol_info
  65 #endif
  66 #define bfd_elfNN_canonicalize_symtab   _bfd_elf_canonicalize_symtab
  67 #define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound
  68 #define bfd_elfNN_make_empty_symbol     _bfd_elf_make_empty_symbol
  69 #ifndef bfd_elfNN_new_section_hook
  70 #define bfd_elfNN_new_section_hook      _bfd_elf_new_section_hook
  71 #endif
  72 #define bfd_elfNN_set_arch_mach         _bfd_elf_set_arch_mach
  73 #ifndef bfd_elfNN_set_section_contents
  74 #define bfd_elfNN_set_section_contents  _bfd_elf_set_section_contents
  75 #endif
  76 #define bfd_elfNN_sizeof_headers        _bfd_elf_sizeof_headers
  77 #define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents
  78 #define bfd_elfNN_write_corefile_contents _bfd_elf_write_corefile_contents
  79
  80 #define bfd_elfNN_get_section_contents_in_window \
  81   _bfd_generic_get_section_contents_in_window
  82
  83 #ifndef elf_backend_can_refcount
  84 #define elf_backend_can_refcount 0
  85 #endif
  86 #ifndef elf_backend_want_got_plt
  87 #define elf_backend_want_got_plt 0
  88 #endif
  89 #ifndef elf_backend_plt_readonly
  90 #define elf_backend_plt_readonly 0
  91 #endif
  92 #ifndef elf_backend_want_plt_sym
  93 #define elf_backend_want_plt_sym 0
  94 #endif
  95 #ifndef elf_backend_plt_not_loaded
  96 #define elf_backend_plt_not_loaded 0
  97 #endif
  98 #ifndef elf_backend_plt_alignment
  99 #define elf_backend_plt_alignment 2
 100 #endif
 101 #ifndef elf_backend_want_dynbss
 102 #define elf_backend_want_dynbss 1
 103 #endif
 104 #ifndef elf_backend_want_p_paddr_set_to_zero
 105 #define elf_backend_want_p_paddr_set_to_zero 0
 106 #endif
 107 #ifndef elf_backend_default_execstack
 108 #define elf_backend_default_execstack 1
 109 #endif
 110 #ifndef elf_backend_caches_rawsize
 111 #define elf_backend_caches_rawsize 0
 112 #endif
 113 #ifndef elf_backend_stack_align
 114 #define elf_backend_stack_align 16
 115 #endif
 116
 117 #define bfd_elfNN_bfd_debug_info_start  bfd_void
 118 #define bfd_elfNN_bfd_debug_info_end    bfd_void
 119 #define bfd_elfNN_bfd_debug_info_accumulate \
 120   ((void (*) (bfd*, struct bfd_section *)) bfd_void)
 121
 122 #ifndef bfd_elfNN_bfd_get_relocated_section_contents
 123 #define bfd_elfNN_bfd_get_relocated_section_contents \
 124   bfd_generic_get_relocated_section_contents
 125 #endif
 126
 127 #ifndef bfd_elfNN_bfd_relax_section
 128 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
 129 #endif
 130
 131 #ifndef elf_backend_can_gc_sections
 132 #define elf_backend_can_gc_sections 0
 133 #endif
 134 #ifndef elf_backend_can_refcount
 135 #define elf_backend_can_refcount 0
 136 #endif
 137 #ifndef elf_backend_want_got_sym
 138 #define elf_backend_want_got_sym 1
 139 #endif
 140 #ifndef elf_backend_gc_keep
 141 #define elf_backend_gc_keep             _bfd_elf_gc_keep
 142 #endif
 143 #ifndef elf_backend_gc_mark_dynamic_ref
 144 #define elf_backend_gc_mark_dynamic_ref bfd_elf_gc_mark_dynamic_ref_symbol
 145 #endif
 146 #ifndef elf_backend_gc_mark_hook
 147 #define elf_backend_gc_mark_hook        _bfd_elf_gc_mark_hook
 148 #endif
 149 #ifndef elf_backend_gc_mark_extra_sections
 150 #define elf_backend_gc_mark_extra_sections _bfd_elf_gc_mark_extra_sections
 151 #endif
 152 #ifndef elf_backend_gc_sweep_hook
 153 #define elf_backend_gc_sweep_hook       NULL
 154 #endif
 155 #ifndef bfd_elfNN_bfd_gc_sections
 156 #define bfd_elfNN_bfd_gc_sections bfd_elf_gc_sections
 157 #endif
 158
 159 #ifndef bfd_elfNN_bfd_merge_sections
 160 #define bfd_elfNN_bfd_merge_sections \
 161   _bfd_elf_merge_sections
 162 #endif
 163
 164 #ifndef bfd_elfNN_bfd_is_group_section
 165 #define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section
 166 #endif
 167
 168 #ifndef bfd_elfNN_bfd_discard_group
 169 #define bfd_elfNN_bfd_discard_group bfd_generic_discard_group
 170 #endif
 171
 172 #ifndef bfd_elfNN_section_already_linked
 173 #define bfd_elfNN_section_already_linked \
 174   _bfd_elf_section_already_linked
 175 #endif
 176
 177 #ifndef bfd_elfNN_bfd_define_common_symbol
 178 #define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol
 179 #endif
 180
 181 #ifndef bfd_elfNN_bfd_lookup_section_flags
 182 #define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags
 183 #endif
 184
 185 #ifndef bfd_elfNN_bfd_make_debug_symbol
 186 #define bfd_elfNN_bfd_make_debug_symbol \
 187   ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
 188 #endif
 189
 190 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
 191 #define bfd_elfNN_bfd_copy_private_symbol_data \
 192   _bfd_elf_copy_private_symbol_data
 193 #endif
 194
 195 #ifndef bfd_elfNN_bfd_copy_private_section_data
 196 #define bfd_elfNN_bfd_copy_private_section_data \
 197   _bfd_elf_copy_private_section_data
 198 #endif
 199 #ifndef bfd_elfNN_bfd_copy_private_header_data
 200 #define bfd_elfNN_bfd_copy_private_header_data \
 201   _bfd_elf_copy_private_header_data
 202 #endif
 203 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
 204 #define bfd_elfNN_bfd_copy_private_bfd_data \
 205   _bfd_elf_copy_private_bfd_data
 206 #endif
 207 #ifndef bfd_elfNN_bfd_print_private_bfd_data
 208 #define bfd_elfNN_bfd_print_private_bfd_data \
 209   _bfd_elf_print_private_bfd_data
 210 #endif
 211 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
 212 #define bfd_elfNN_bfd_merge_private_bfd_data \
 213   ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
 214 #endif
 215 #ifndef bfd_elfNN_bfd_set_private_flags
 216 #define bfd_elfNN_bfd_set_private_flags \
 217   ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
 218 #endif
 219 #ifndef bfd_elfNN_bfd_is_local_label_name
 220 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
 221 #endif
 222 #ifndef bfd_elfNN_bfd_is_target_special_symbol
 223 #define bfd_elfNN_bfd_is_target_special_symbol \
 224   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
 225 #endif
 226
 227 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
 228 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
 229   _bfd_elf_get_dynamic_reloc_upper_bound
 230 #endif
 231 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
 232 #define bfd_elfNN_canonicalize_dynamic_reloc \
 233   _bfd_elf_canonicalize_dynamic_reloc
 234 #endif
 235
 236 #ifdef elf_backend_relocate_section
 237 #ifndef bfd_elfNN_bfd_link_hash_table_create
 238 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
 239 #endif
 240 #ifndef bfd_elfNN_bfd_link_add_symbols
 241 #define bfd_elfNN_bfd_link_add_symbols  bfd_elf_link_add_symbols
 242 #endif
 243 #ifndef bfd_elfNN_bfd_final_link
 244 #define bfd_elfNN_bfd_final_link        bfd_elf_final_link
 245 #endif
 246 #else /* ! defined (elf_backend_relocate_section) */
 247 /* If no backend relocate_section routine, use the generic linker.
 248    Note - this will prevent the port from being able to use some of
 249    the other features of the ELF linker, because the generic hash structure
 250    does not have the fields needed by the ELF linker.  In particular it
 251    means that linking directly to S-records will not work.  */
 252 #ifndef bfd_elfNN_bfd_link_hash_table_create
 253 #define bfd_elfNN_bfd_link_hash_table_create \
 254   _bfd_generic_link_hash_table_create
 255 #endif
 256 #ifndef bfd_elfNN_bfd_link_add_symbols
 257 #define bfd_elfNN_bfd_link_add_symbols  _bfd_generic_link_add_symbols
 258 #endif
 259 #ifndef bfd_elfNN_bfd_final_link
 260 #define bfd_elfNN_bfd_final_link        _bfd_generic_final_link
 261 #endif
 262 #endif /* ! defined (elf_backend_relocate_section) */
 263
 264 #ifndef bfd_elfNN_bfd_link_just_syms
 265 #define bfd_elfNN_bfd_link_just_syms    _bfd_elf_link_just_syms
 266 #endif
 267
 268 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
 269 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
 270   _bfd_elf_copy_link_hash_symbol_type
 271 #endif
 272
 273 #ifndef bfd_elfNN_bfd_link_split_section
 274 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
 275 #endif
 276
 277 #ifndef bfd_elfNN_archive_p
 278 #define bfd_elfNN_archive_p bfd_generic_archive_p
 279 #endif
 280
 281 #ifndef bfd_elfNN_write_archive_contents
 282 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
 283 #endif
 284
 285 #ifndef bfd_elfNN_mkobject
 286 #define bfd_elfNN_mkobject bfd_elf_make_object
 287 #endif
 288
 289 #ifndef bfd_elfNN_mkcorefile
 290 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
 291 #endif
 292
 293 #ifndef bfd_elfNN_mkarchive
 294 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
 295 #endif
 296
 297 #ifndef bfd_elfNN_print_symbol
 298 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
 299 #endif
 300
 301 #ifndef elf_symbol_leading_char
 302 #define elf_symbol_leading_char 0
 303 #endif
 304
 305 #ifndef elf_info_to_howto
 306 #define elf_info_to_howto 0
 307 #endif
 308
 309 #ifndef elf_info_to_howto_rel
 310 #define elf_info_to_howto_rel 0
 311 #endif
 312
 313 #ifndef elf_backend_arch_data
 314 #define elf_backend_arch_data NULL
 315 #endif
 316
 317 #ifndef ELF_TARGET_ID
 318 #define ELF_TARGET_ID   GENERIC_ELF_DATA
 319 #endif
 320
 321 #ifndef ELF_OSABI
 322 #define ELF_OSABI ELFOSABI_NONE
 323 #endif
 324
 325 #ifndef ELF_MAXPAGESIZE
 326 # error ELF_MAXPAGESIZE is not defined
 327 #define ELF_MAXPAGESIZE 1
 328 #endif
 329
 330 #ifndef ELF_COMMONPAGESIZE
 331 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
 332 #endif
 333
 334 #ifndef ELF_MINPAGESIZE
 335 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
 336 #endif
 337
 338 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
 339 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
 340 #endif
 341 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
 342 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
 343 #endif
 344
 345 #ifndef ELF_DYNAMIC_SEC_FLAGS
 346 /* Note that we set the SEC_IN_MEMORY flag for these sections.  */
 347 #define ELF_DYNAMIC_SEC_FLAGS                   \
 348   (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS      \
 349    | SEC_IN_MEMORY | SEC_LINKER_CREATED)
 350 #endif
 351
 352 #ifndef elf_backend_collect
 353 #define elf_backend_collect FALSE
 354 #endif
 355 #ifndef elf_backend_type_change_ok
 356 #define elf_backend_type_change_ok FALSE
 357 #endif
 358
 359 #ifndef elf_backend_sym_is_global
 360 #define elf_backend_sym_is_global       0
 361 #endif
 362 #ifndef elf_backend_object_p
 363 #define elf_backend_object_p            0
 364 #endif
 365 #ifndef elf_backend_symbol_processing
 366 #define elf_backend_symbol_processing   0
 367 #endif
 368 #ifndef elf_backend_symbol_table_processing
 369 #define elf_backend_symbol_table_processing     0
 370 #endif
 371 #ifndef elf_backend_get_symbol_type
 372 #define elf_backend_get_symbol_type 0
 373 #endif
 374 #ifndef elf_backend_archive_symbol_lookup
 375 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
 376 #endif
 377 #ifndef elf_backend_name_local_section_symbols
 378 #define elf_backend_name_local_section_symbols  0
 379 #endif
 380 #ifndef elf_backend_section_processing
 381 #define elf_backend_section_processing  0
 382 #endif
 383 #ifndef elf_backend_section_from_shdr
 384 #define elf_backend_section_from_shdr   _bfd_elf_make_section_from_shdr
 385 #endif
 386 #ifndef elf_backend_section_flags
 387 #define elf_backend_section_flags       0
 388 #endif
 389 #ifndef elf_backend_get_sec_type_attr
 390 #define elf_backend_get_sec_type_attr   _bfd_elf_get_sec_type_attr
 391 #endif
 392 #ifndef elf_backend_section_from_phdr
 393 #define elf_backend_section_from_phdr   _bfd_elf_make_section_from_phdr
 394 #endif
 395 #ifndef elf_backend_fake_sections
 396 #define elf_backend_fake_sections       0
 397 #endif
 398 #ifndef elf_backend_section_from_bfd_section
 399 #define elf_backend_section_from_bfd_section    0
 400 #endif
 401 #ifndef elf_backend_add_symbol_hook
 402 #define elf_backend_add_symbol_hook     0
 403 #endif
 404 #ifndef elf_backend_link_output_symbol_hook
 405 #define elf_backend_link_output_symbol_hook 0
 406 #endif
 407 #ifndef elf_backend_create_dynamic_sections
 408 #define elf_backend_create_dynamic_sections 0
 409 #endif
 410 #ifndef elf_backend_omit_section_dynsym
 411 #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym
 412 #endif
 413 #ifndef elf_backend_relocs_compatible
 414 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
 415 #endif
 416 #ifndef elf_backend_check_relocs
 417 #define elf_backend_check_relocs        0
 418 #endif
 419 #ifndef elf_backend_check_directives
 420 #define elf_backend_check_directives    0
 421 #endif
 422 #ifndef elf_backend_notice_as_needed
 423 #define elf_backend_notice_as_needed    _bfd_elf_notice_as_needed
 424 #endif
 425 #ifndef elf_backend_adjust_dynamic_symbol
 426 #define elf_backend_adjust_dynamic_symbol 0
 427 #endif
 428 #ifndef elf_backend_always_size_sections
 429 #define elf_backend_always_size_sections 0
 430 #endif
 431 #ifndef elf_backend_size_dynamic_sections
 432 #define elf_backend_size_dynamic_sections 0
 433 #endif
 434 #ifndef elf_backend_init_index_section
 435 #define elf_backend_init_index_section \
 436  ((void (*) (bfd *, struct bfd_link_info *)) bfd_void)
 437 #endif
 438 #ifndef elf_backend_relocate_section
 439 #define elf_backend_relocate_section    0
 440 #endif
 441 #ifndef elf_backend_finish_dynamic_symbol
 442 #define elf_backend_finish_dynamic_symbol       0
 443 #endif
 444 #ifndef elf_backend_finish_dynamic_sections
 445 #define elf_backend_finish_dynamic_sections     0
 446 #endif
 447 #ifndef elf_backend_begin_write_processing
 448 #define elf_backend_begin_write_processing      0
 449 #endif
 450 #ifndef elf_backend_final_write_processing
 451 #define elf_backend_final_write_processing      0
 452 #endif
 453 #ifndef elf_backend_additional_program_headers
 454 #define elf_backend_additional_program_headers  0
 455 #endif
 456 #ifndef elf_backend_modify_segment_map
 457 #define elf_backend_modify_segment_map  0
 458 #endif
 459 #ifndef elf_backend_modify_program_headers
 460 #define elf_backend_modify_program_headers      0
 461 #endif
 462 #ifndef elf_backend_ecoff_debug_swap
 463 #define elf_backend_ecoff_debug_swap    0
 464 #endif
 465 #ifndef elf_backend_bfd_from_remote_memory
 466 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
 467 #endif
 468 #ifndef elf_backend_got_header_size
 469 #define elf_backend_got_header_size     0
 470 #endif
 471 #ifndef elf_backend_got_elt_size
 472 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
 473 #endif
 474 #ifndef elf_backend_obj_attrs_vendor
 475 #define elf_backend_obj_attrs_vendor            NULL
 476 #endif
 477 #ifndef elf_backend_obj_attrs_section
 478 #define elf_backend_obj_attrs_section           NULL
 479 #endif
 480 #ifndef elf_backend_obj_attrs_arg_type
 481 #define elf_backend_obj_attrs_arg_type          NULL
 482 #endif
 483 #ifndef elf_backend_obj_attrs_section_type
 484 #define elf_backend_obj_attrs_section_type              SHT_GNU_ATTRIBUTES
 485 #endif
 486 #ifndef elf_backend_obj_attrs_order
 487 #define elf_backend_obj_attrs_order             NULL
 488 #endif
 489 #ifndef elf_backend_obj_attrs_handle_unknown
 490 #define elf_backend_obj_attrs_handle_unknown    NULL
 491 #endif
 492 #ifndef elf_backend_static_tls_alignment
 493 #define elf_backend_static_tls_alignment        1
 494 #endif
 495 #ifndef elf_backend_post_process_headers
 496 #define elf_backend_post_process_headers        _bfd_elf_post_process_headers
 497 #endif
 498 #ifndef elf_backend_print_symbol_all
 499 #define elf_backend_print_symbol_all            NULL
 500 #endif
 501 #ifndef elf_backend_output_arch_local_syms
 502 #define elf_backend_output_arch_local_syms      NULL
 503 #endif
 504 #ifndef elf_backend_output_arch_syms
 505 #define elf_backend_output_arch_syms            NULL
 506 #endif
 507 #ifndef elf_backend_copy_indirect_symbol
 508 #define elf_backend_copy_indirect_symbol  _bfd_elf_link_hash_copy_indirect
 509 #endif
 510 #ifndef elf_backend_hide_symbol
 511 #define elf_backend_hide_symbol         _bfd_elf_link_hash_hide_symbol
 512 #endif
 513 #ifndef elf_backend_fixup_symbol
 514 #define elf_backend_fixup_symbol                NULL
 515 #endif
 516 #ifndef elf_backend_merge_symbol_attribute
 517 #define elf_backend_merge_symbol_attribute      NULL
 518 #endif
 519 #ifndef elf_backend_get_target_dtag
 520 #define elf_backend_get_target_dtag             NULL
 521 #endif
 522 #ifndef elf_backend_ignore_undef_symbol
 523 #define elf_backend_ignore_undef_symbol         NULL
 524 #endif
 525 #ifndef elf_backend_emit_relocs
 526 #define elf_backend_emit_relocs                 _bfd_elf_link_output_relocs
 527 #endif
 528 #ifndef elf_backend_count_relocs
 529 #define elf_backend_count_relocs                NULL
 530 #endif
 531 #ifndef elf_backend_grok_prstatus
 532 #define elf_backend_grok_prstatus               NULL
 533 #endif
 534 #ifndef elf_backend_grok_psinfo
 535 #define elf_backend_grok_psinfo                 NULL
 536 #endif
 537 #ifndef elf_backend_write_core_note
 538 #define elf_backend_write_core_note             NULL
 539 #endif
 540 #ifndef elf_backend_lookup_section_flags_hook
 541 #define elf_backend_lookup_section_flags_hook   NULL
 542 #endif
 543 #ifndef elf_backend_reloc_type_class
 544 #define elf_backend_reloc_type_class            _bfd_elf_reloc_type_class
 545 #endif
 546 #ifndef elf_backend_discard_info
 547 #define elf_backend_discard_info                NULL
 548 #endif
 549 #ifndef elf_backend_ignore_discarded_relocs
 550 #define elf_backend_ignore_discarded_relocs     NULL
 551 #endif
 552 #ifndef elf_backend_action_discarded
 553 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
 554 #endif
 555 #ifndef elf_backend_eh_frame_address_size
 556 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
 557 #endif
 558 #ifndef elf_backend_can_make_relative_eh_frame
 559 #define elf_backend_can_make_relative_eh_frame  _bfd_elf_can_make_relative
 560 #endif
 561 #ifndef elf_backend_can_make_lsda_relative_eh_frame
 562 #define elf_backend_can_make_lsda_relative_eh_frame     _bfd_elf_can_make_relative
 563 #endif
 564 #ifndef elf_backend_encode_eh_address
 565 #define elf_backend_encode_eh_address           _bfd_elf_encode_eh_address
 566 #endif
 567 #ifndef elf_backend_write_section
 568 #define elf_backend_write_section               NULL
 569 #endif
 570 #ifndef elf_backend_mips_irix_compat
 571 #define elf_backend_mips_irix_compat            NULL
 572 #endif
 573 #ifndef elf_backend_mips_rtype_to_howto
 574 #define elf_backend_mips_rtype_to_howto         NULL
 575 #endif
 576
 577 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
 578    sections, but not both.  They defined USE_REL to indicate SHT_REL
 579    sections, and left it undefined to indicated SHT_RELA sections.
 580    For backwards compatibility, we still support this usage.  */
 581 #ifndef USE_REL
 582 #define USE_REL 0
 583 #endif
 584
 585 /* Use these in new code.  */
 586 #ifndef elf_backend_may_use_rel_p
 587 #define elf_backend_may_use_rel_p USE_REL
 588 #endif
 589 #ifndef elf_backend_may_use_rela_p
 590 #define elf_backend_may_use_rela_p !USE_REL
 591 #endif
 592 #ifndef elf_backend_default_use_rela_p
 593 #define elf_backend_default_use_rela_p !USE_REL
 594 #endif
 595 #ifndef elf_backend_rela_plts_and_copies_p
 596 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
 597 #endif
 598
 599 #ifndef elf_backend_rela_normal
 600 #define elf_backend_rela_normal 0
 601 #endif
 602
 603 #ifndef elf_backend_plt_sym_val
 604 #define elf_backend_plt_sym_val NULL
 605 #endif
 606 #ifndef elf_backend_relplt_name
 607 #define elf_backend_relplt_name NULL
 608 #endif
 609
 610 #ifndef ELF_MACHINE_ALT1
 611 #define ELF_MACHINE_ALT1 0
 612 #endif
 613
 614 #ifndef ELF_MACHINE_ALT2
 615 #define ELF_MACHINE_ALT2 0
 616 #endif
 617
 618 #ifndef elf_backend_size_info
 619 #define elf_backend_size_info _bfd_elfNN_size_info
 620 #endif
 621
 622 #ifndef elf_backend_special_sections
 623 #define elf_backend_special_sections NULL
 624 #endif
 625
 626 #ifndef elf_backend_sign_extend_vma
 627 #define elf_backend_sign_extend_vma 0
 628 #endif
 629
 630 #ifndef elf_backend_link_order_error_handler
 631 #define elf_backend_link_order_error_handler _bfd_default_error_handler
 632 #endif
 633
 634 #ifndef elf_backend_common_definition
 635 #define elf_backend_common_definition _bfd_elf_common_definition
 636 #endif
 637
 638 #ifndef elf_backend_common_section_index
 639 #define elf_backend_common_section_index _bfd_elf_common_section_index
 640 #endif
 641
 642 #ifndef elf_backend_common_section
 643 #define elf_backend_common_section _bfd_elf_common_section
 644 #endif
 645
 646 #ifndef elf_backend_merge_symbol
 647 #define elf_backend_merge_symbol NULL
 648 #endif
 649
 650 #ifndef elf_backend_hash_symbol
 651 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
 652 #endif
 653
 654 #ifndef elf_backend_is_function_type
 655 #define elf_backend_is_function_type _bfd_elf_is_function_type
 656 #endif
 657
 658 #ifndef elf_backend_maybe_function_sym
 659 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
 660 #endif
 661
 662 #ifndef elf_match_priority
 663 #define elf_match_priority \
 664   (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
 665 #endif
 666
 667 extern const struct elf_size_info _bfd_elfNN_size_info;
 668
 669 static struct elf_backend_data elfNN_bed =
 670 {
 671   ELF_ARCH,                     /* arch */
 672   ELF_TARGET_ID,                /* target_id */
 673   ELF_MACHINE_CODE,             /* elf_machine_code */
 674   ELF_OSABI,                    /* elf_osabi  */
 675   ELF_MAXPAGESIZE,              /* maxpagesize */
 676   ELF_MINPAGESIZE,              /* minpagesize */
 677   ELF_COMMONPAGESIZE,           /* commonpagesize */
 678   ELF_DYNAMIC_SEC_FLAGS,        /* dynamic_sec_flags */
 679   elf_backend_arch_data,
 680   elf_info_to_howto,
 681   elf_info_to_howto_rel,
 682   elf_backend_sym_is_global,
 683   elf_backend_object_p,
 684   elf_backend_symbol_processing,
 685   elf_backend_symbol_table_processing,
 686   elf_backend_get_symbol_type,
 687   elf_backend_archive_symbol_lookup,
 688   elf_backend_name_local_section_symbols,
 689   elf_backend_section_processing,
 690   elf_backend_section_from_shdr,
 691   elf_backend_section_flags,
 692   elf_backend_get_sec_type_attr,
 693   elf_backend_section_from_phdr,
 694   elf_backend_fake_sections,
 695   elf_backend_section_from_bfd_section,
 696   elf_backend_add_symbol_hook,
 697   elf_backend_link_output_symbol_hook,
 698   elf_backend_create_dynamic_sections,
 699   elf_backend_omit_section_dynsym,
 700   elf_backend_relocs_compatible,
 701   elf_backend_check_relocs,
 702   elf_backend_check_directives,
 703   elf_backend_notice_as_needed,
 704   elf_backend_adjust_dynamic_symbol,
 705   elf_backend_always_size_sections,
 706   elf_backend_size_dynamic_sections,
 707   elf_backend_init_index_section,
 708   elf_backend_relocate_section,
 709   elf_backend_finish_dynamic_symbol,
 710   elf_backend_finish_dynamic_sections,
 711   elf_backend_begin_write_processing,
 712   elf_backend_final_write_processing,
 713   elf_backend_additional_program_headers,
 714   elf_backend_modify_segment_map,
 715   elf_backend_modify_program_headers,
 716   elf_backend_gc_keep,
 717   elf_backend_gc_mark_dynamic_ref,
 718   elf_backend_gc_mark_hook,
 719   elf_backend_gc_mark_extra_sections,
 720   elf_backend_gc_sweep_hook,
 721   elf_backend_post_process_headers,
 722   elf_backend_print_symbol_all,
 723   elf_backend_output_arch_local_syms,
 724   elf_backend_output_arch_syms,
 725   elf_backend_copy_indirect_symbol,
 726   elf_backend_hide_symbol,
 727   elf_backend_fixup_symbol,
 728   elf_backend_merge_symbol_attribute,
 729   elf_backend_get_target_dtag,
 730   elf_backend_ignore_undef_symbol,
 731   elf_backend_emit_relocs,
 732   elf_backend_count_relocs,
 733   elf_backend_grok_prstatus,
 734   elf_backend_grok_psinfo,
 735   elf_backend_write_core_note,
 736   elf_backend_lookup_section_flags_hook,
 737   elf_backend_reloc_type_class,
 738   elf_backend_discard_info,
 739   elf_backend_ignore_discarded_relocs,
 740   elf_backend_action_discarded,
 741   elf_backend_eh_frame_address_size,
 742   elf_backend_can_make_relative_eh_frame,
 743   elf_backend_can_make_lsda_relative_eh_frame,
 744   elf_backend_encode_eh_address,
 745   elf_backend_write_section,
 746   elf_backend_mips_irix_compat,
 747   elf_backend_mips_rtype_to_howto,
 748   elf_backend_ecoff_debug_swap,
 749   elf_backend_bfd_from_remote_memory,
 750   elf_backend_plt_sym_val,
 751   elf_backend_common_definition,
 752   elf_backend_common_section_index,
 753   elf_backend_common_section,
 754   elf_backend_merge_symbol,
 755   elf_backend_hash_symbol,
 756   elf_backend_is_function_type,
 757   elf_backend_maybe_function_sym,
 758   elf_backend_link_order_error_handler,
 759   elf_backend_relplt_name,
 760   ELF_MACHINE_ALT1,
 761   ELF_MACHINE_ALT2,
 762   &elf_backend_size_info,
 763   elf_backend_special_sections,
 764   elf_backend_got_header_size,
 765   elf_backend_got_elt_size,
 766   elf_backend_obj_attrs_vendor,
 767   elf_backend_obj_attrs_section,
 768   elf_backend_obj_attrs_arg_type,
 769   elf_backend_obj_attrs_section_type,
 770   elf_backend_obj_attrs_order,
 771   elf_backend_obj_attrs_handle_unknown,
 772   elf_backend_static_tls_alignment,
 773   elf_backend_stack_align,
 774   elf_backend_collect,
 775   elf_backend_type_change_ok,
 776   elf_backend_may_use_rel_p,
 777   elf_backend_may_use_rela_p,
 778   elf_backend_default_use_rela_p,
 779   elf_backend_rela_plts_and_copies_p,
 780   elf_backend_rela_normal,
 781   elf_backend_sign_extend_vma,
 782   elf_backend_want_got_plt,
 783   elf_backend_plt_readonly,
 784   elf_backend_want_plt_sym,
 785   elf_backend_plt_not_loaded,
 786   elf_backend_plt_alignment,
 787   elf_backend_can_gc_sections,
 788   elf_backend_can_refcount,
 789   elf_backend_want_got_sym,
 790   elf_backend_want_dynbss,
 791   elf_backend_want_p_paddr_set_to_zero,
 792   elf_backend_default_execstack,
 793   elf_backend_caches_rawsize
 794 };
 795
 796 /* Forward declaration for use when initialising alternative_target field.  */
 797 #ifdef TARGET_LITTLE_SYM
 798 extern const bfd_target TARGET_LITTLE_SYM;
 799 #endif
 800
 801 #ifdef TARGET_BIG_SYM
 802 const bfd_target TARGET_BIG_SYM =
 803 {
 804   /* name: identify kind of target */
 805   TARGET_BIG_NAME,
 806
 807   /* flavour: general indication about file */
 808   bfd_target_elf_flavour,
 809
 810   /* byteorder: data is big endian */
 811   BFD_ENDIAN_BIG,
 812
 813   /* header_byteorder: header is also big endian */
 814   BFD_ENDIAN_BIG,
 815
 816   /* object_flags: mask of all file flags */
 817   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
 818    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS),
 819
 820   /* section_flags: mask of all section flags */
 821   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
 822    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
 823    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
 824
 825    /* leading_symbol_char: is the first char of a user symbol
 826       predictable, and if so what is it */
 827   elf_symbol_leading_char,
 828
 829   /* ar_pad_char: pad character for filenames within an archive header
 830      FIXME:  this really has nothing to do with ELF, this is a characteristic
 831      of the archiver and/or os and should be independently tunable */
 832   '/',
 833
 834   /* ar_max_namelen: maximum number of characters in an archive header
 835      FIXME:  this really has nothing to do with ELF, this is a characteristic
 836      of the archiver and should be independently tunable.  The System V ABI,
 837      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
 838   15,
 839
 840   elf_match_priority,
 841
 842   /* Routines to byte-swap various sized integers from the data sections */
 843   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 844     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 845     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 846
 847   /* Routines to byte-swap various sized integers from the file headers */
 848   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 849     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 850     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 851
 852   /* bfd_check_format: check the format of a file being read */
 853   { _bfd_dummy_target,          /* unknown format */
 854     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
 855     bfd_elfNN_archive_p,        /* an archive */
 856     bfd_elfNN_core_file_p       /* a core file */
 857   },
 858
 859   /* bfd_set_format: set the format of a file being written */
 860   { bfd_false,
 861     bfd_elfNN_mkobject,
 862     bfd_elfNN_mkarchive,
 863     bfd_elfNN_mkcorefile
 864   },
 865
 866   /* bfd_write_contents: write cached information into a file being written */
 867   { bfd_false,
 868     bfd_elfNN_write_object_contents,
 869     bfd_elfNN_write_archive_contents,
 870     bfd_elfNN_write_corefile_contents,
 871   },
 872
 873   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
 874   BFD_JUMP_TABLE_COPY (bfd_elfNN),
 875   BFD_JUMP_TABLE_CORE (bfd_elfNN),
 876 #ifdef bfd_elfNN_archive_functions
 877   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
 878 #else
 879   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 880 #endif
 881   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
 882   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
 883   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
 884   BFD_JUMP_TABLE_LINK (bfd_elfNN),
 885   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
 886
 887   /* Alternative endian target.  */
 888 #ifdef TARGET_LITTLE_SYM
 889   & TARGET_LITTLE_SYM,
 890 #else
 891   NULL,
 892 #endif
 893
 894   /* backend_data: */
 895   &elfNN_bed
 896 };
 897 #endif
 898
 899 #ifdef TARGET_LITTLE_SYM
 900 const bfd_target TARGET_LITTLE_SYM =
 901 {
 902   /* name: identify kind of target */
 903   TARGET_LITTLE_NAME,
 904
 905   /* flavour: general indication about file */
 906   bfd_target_elf_flavour,
 907
 908   /* byteorder: data is little endian */
 909   BFD_ENDIAN_LITTLE,
 910
 911   /* header_byteorder: header is also little endian */
 912   BFD_ENDIAN_LITTLE,
 913
 914   /* object_flags: mask of all file flags */
 915   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
 916    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS),
 917
 918   /* section_flags: mask of all section flags */
 919   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
 920    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
 921    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
 922
 923    /* leading_symbol_char: is the first char of a user symbol
 924       predictable, and if so what is it */
 925   elf_symbol_leading_char,
 926
 927   /* ar_pad_char: pad character for filenames within an archive header
 928      FIXME:  this really has nothing to do with ELF, this is a characteristic
 929      of the archiver and/or os and should be independently tunable */
 930   '/',
 931
 932   /* ar_max_namelen: maximum number of characters in an archive header
 933      FIXME:  this really has nothing to do with ELF, this is a characteristic
 934      of the archiver and should be independently tunable.  The System V ABI,
 935      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
 936   15,
 937
 938   elf_match_priority,
 939
 940   /* Routines to byte-swap various sized integers from the data sections */
 941   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 942     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 943     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 944
 945   /* Routines to byte-swap various sized integers from the file headers */
 946   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 947     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 948     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 949
 950   /* bfd_check_format: check the format of a file being read */
 951   { _bfd_dummy_target,          /* unknown format */
 952     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
 953     bfd_elfNN_archive_p,        /* an archive */
 954     bfd_elfNN_core_file_p       /* a core file */
 955   },
 956
 957   /* bfd_set_format: set the format of a file being written */
 958   { bfd_false,
 959     bfd_elfNN_mkobject,
 960     bfd_elfNN_mkarchive,
 961     bfd_elfNN_mkcorefile
 962   },
 963
 964   /* bfd_write_contents: write cached information into a file being written */
 965   { bfd_false,
 966     bfd_elfNN_write_object_contents,
 967     bfd_elfNN_write_archive_contents,
 968     bfd_elfNN_write_corefile_contents,
 969   },
 970
 971   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
 972   BFD_JUMP_TABLE_COPY (bfd_elfNN),
 973   BFD_JUMP_TABLE_CORE (bfd_elfNN),
 974 #ifdef bfd_elfNN_archive_functions
 975   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
 976 #else
 977   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 978 #endif
 979   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
 980   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
 981   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
 982   BFD_JUMP_TABLE_LINK (bfd_elfNN),
 983   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
 984
 985   /* Alternative endian target.  */
 986 #ifdef TARGET_BIG_SYM
 987   & TARGET_BIG_SYM,
 988 #else
 989   NULL,
 990 #endif
 991
 992   /* backend_data: */
 993   &elfNN_bed
 994 };
 995 #endif