bfd/elfxx-target.h

   1 /* Target definitions for NN-bit ELF
   2    Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
   3    2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
   4
   5    This file is part of BFD, the Binary File Descriptor library.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21
  22
  23 /* This structure contains everything that BFD knows about a target.
  24    It includes things like its byte order, name, what routines to call
  25    to do various operations, etc.  Every BFD points to a target structure
  26    with its "xvec" member.
  27
  28    There are two such structures here:  one for big-endian machines and
  29    one for little-endian machines.   */
  30
  31 #ifndef bfd_elfNN_close_and_cleanup
  32 #define bfd_elfNN_close_and_cleanup _bfd_elf_close_and_cleanup
  33 #endif
  34 #ifndef bfd_elfNN_bfd_free_cached_info
  35 #define bfd_elfNN_bfd_free_cached_info _bfd_free_cached_info
  36 #endif
  37 #ifndef bfd_elfNN_get_section_contents
  38 #define bfd_elfNN_get_section_contents _bfd_generic_get_section_contents
  39 #endif
  40
  41 #define bfd_elfNN_canonicalize_dynamic_symtab \
  42   _bfd_elf_canonicalize_dynamic_symtab
  43 #ifndef bfd_elfNN_get_synthetic_symtab
  44 #define bfd_elfNN_get_synthetic_symtab \
  45   _bfd_elf_get_synthetic_symtab
  46 #endif
  47 #ifndef bfd_elfNN_canonicalize_reloc
  48 #define bfd_elfNN_canonicalize_reloc    _bfd_elf_canonicalize_reloc
  49 #endif
  50 #ifndef bfd_elfNN_find_nearest_line
  51 #define bfd_elfNN_find_nearest_line     _bfd_elf_find_nearest_line
  52 #endif
  53 #ifndef bfd_elfNN_find_inliner_info
  54 #define bfd_elfNN_find_inliner_info     _bfd_elf_find_inliner_info
  55 #endif
  56 #define bfd_elfNN_read_minisymbols      _bfd_elf_read_minisymbols
  57 #define bfd_elfNN_minisymbol_to_symbol  _bfd_elf_minisymbol_to_symbol
  58 #define bfd_elfNN_get_dynamic_symtab_upper_bound \
  59   _bfd_elf_get_dynamic_symtab_upper_bound
  60 #define bfd_elfNN_get_lineno            _bfd_elf_get_lineno
  61 #ifndef bfd_elfNN_get_reloc_upper_bound
  62 #define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound
  63 #endif
  64 #ifndef bfd_elfNN_get_symbol_info
  65 #define bfd_elfNN_get_symbol_info       _bfd_elf_get_symbol_info
  66 #endif
  67 #define bfd_elfNN_canonicalize_symtab   _bfd_elf_canonicalize_symtab
  68 #define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound
  69 #define bfd_elfNN_make_empty_symbol     _bfd_elf_make_empty_symbol
  70 #ifndef bfd_elfNN_new_section_hook
  71 #define bfd_elfNN_new_section_hook      _bfd_elf_new_section_hook
  72 #endif
  73 #define bfd_elfNN_set_arch_mach         _bfd_elf_set_arch_mach
  74 #ifndef bfd_elfNN_set_section_contents
  75 #define bfd_elfNN_set_section_contents  _bfd_elf_set_section_contents
  76 #endif
  77 #define bfd_elfNN_sizeof_headers        _bfd_elf_sizeof_headers
  78 #define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents
  79 #define bfd_elfNN_write_corefile_contents _bfd_elf_write_corefile_contents
  80
  81 #define bfd_elfNN_get_section_contents_in_window \
  82   _bfd_generic_get_section_contents_in_window
  83
  84 #ifndef elf_backend_can_refcount
  85 #define elf_backend_can_refcount 0
  86 #endif
  87 #ifndef elf_backend_want_got_plt
  88 #define elf_backend_want_got_plt 0
  89 #endif
  90 #ifndef elf_backend_plt_readonly
  91 #define elf_backend_plt_readonly 0
  92 #endif
  93 #ifndef elf_backend_want_plt_sym
  94 #define elf_backend_want_plt_sym 0
  95 #endif
  96 #ifndef elf_backend_plt_not_loaded
  97 #define elf_backend_plt_not_loaded 0
  98 #endif
  99 #ifndef elf_backend_plt_alignment
 100 #define elf_backend_plt_alignment 2
 101 #endif
 102 #ifndef elf_backend_want_dynbss
 103 #define elf_backend_want_dynbss 1
 104 #endif
 105 #ifndef elf_backend_want_p_paddr_set_to_zero
 106 #define elf_backend_want_p_paddr_set_to_zero 0
 107 #endif
 108 #ifndef elf_backend_default_execstack
 109 #define elf_backend_default_execstack 1
 110 #endif
 111
 112 #define bfd_elfNN_bfd_debug_info_start  bfd_void
 113 #define bfd_elfNN_bfd_debug_info_end    bfd_void
 114 #define bfd_elfNN_bfd_debug_info_accumulate \
 115   ((void (*) (bfd*, struct bfd_section *)) bfd_void)
 116
 117 #ifndef bfd_elfNN_bfd_get_relocated_section_contents
 118 #define bfd_elfNN_bfd_get_relocated_section_contents \
 119   bfd_generic_get_relocated_section_contents
 120 #endif
 121
 122 #ifndef bfd_elfNN_bfd_relax_section
 123 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
 124 #endif
 125
 126 #ifndef elf_backend_can_gc_sections
 127 #define elf_backend_can_gc_sections 0
 128 #endif
 129 #ifndef elf_backend_can_refcount
 130 #define elf_backend_can_refcount 0
 131 #endif
 132 #ifndef elf_backend_want_got_sym
 133 #define elf_backend_want_got_sym 1
 134 #endif
 135 #ifndef elf_backend_gc_keep
 136 #define elf_backend_gc_keep             _bfd_elf_gc_keep
 137 #endif
 138 #ifndef elf_backend_gc_mark_dynamic_ref
 139 #define elf_backend_gc_mark_dynamic_ref bfd_elf_gc_mark_dynamic_ref_symbol
 140 #endif
 141 #ifndef elf_backend_gc_mark_hook
 142 #define elf_backend_gc_mark_hook        _bfd_elf_gc_mark_hook
 143 #endif
 144 #ifndef elf_backend_gc_mark_extra_sections
 145 #define elf_backend_gc_mark_extra_sections      NULL
 146 #endif
 147 #ifndef elf_backend_gc_sweep_hook
 148 #define elf_backend_gc_sweep_hook       NULL
 149 #endif
 150 #ifndef bfd_elfNN_bfd_gc_sections
 151 #define bfd_elfNN_bfd_gc_sections bfd_elf_gc_sections
 152 #endif
 153
 154 #ifndef bfd_elfNN_bfd_merge_sections
 155 #define bfd_elfNN_bfd_merge_sections \
 156   _bfd_elf_merge_sections
 157 #endif
 158
 159 #ifndef bfd_elfNN_bfd_is_group_section
 160 #define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section
 161 #endif
 162
 163 #ifndef bfd_elfNN_bfd_discard_group
 164 #define bfd_elfNN_bfd_discard_group bfd_generic_discard_group
 165 #endif
 166
 167 #ifndef bfd_elfNN_section_already_linked
 168 #define bfd_elfNN_section_already_linked \
 169   _bfd_elf_section_already_linked
 170 #endif
 171
 172 #ifndef bfd_elfNN_bfd_define_common_symbol
 173 #define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol
 174 #endif
 175
 176 #ifndef bfd_elfNN_bfd_make_debug_symbol
 177 #define bfd_elfNN_bfd_make_debug_symbol \
 178   ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
 179 #endif
 180
 181 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
 182 #define bfd_elfNN_bfd_copy_private_symbol_data \
 183   _bfd_elf_copy_private_symbol_data
 184 #endif
 185
 186 #ifndef bfd_elfNN_bfd_copy_private_section_data
 187 #define bfd_elfNN_bfd_copy_private_section_data \
 188   _bfd_elf_copy_private_section_data
 189 #endif
 190 #ifndef bfd_elfNN_bfd_copy_private_header_data
 191 #define bfd_elfNN_bfd_copy_private_header_data \
 192   _bfd_elf_copy_private_header_data
 193 #endif
 194 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
 195 #define bfd_elfNN_bfd_copy_private_bfd_data \
 196   _bfd_elf_copy_private_bfd_data
 197 #endif
 198 #ifndef bfd_elfNN_bfd_print_private_bfd_data
 199 #define bfd_elfNN_bfd_print_private_bfd_data \
 200   _bfd_elf_print_private_bfd_data
 201 #endif
 202 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
 203 #define bfd_elfNN_bfd_merge_private_bfd_data \
 204   ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
 205 #endif
 206 #ifndef bfd_elfNN_bfd_set_private_flags
 207 #define bfd_elfNN_bfd_set_private_flags \
 208   ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
 209 #endif
 210 #ifndef bfd_elfNN_bfd_is_local_label_name
 211 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
 212 #endif
 213 #ifndef bfd_elfNN_bfd_is_target_special_symbol
 214 #define bfd_elfNN_bfd_is_target_special_symbol \
 215   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
 216 #endif
 217
 218 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
 219 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
 220   _bfd_elf_get_dynamic_reloc_upper_bound
 221 #endif
 222 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
 223 #define bfd_elfNN_canonicalize_dynamic_reloc \
 224   _bfd_elf_canonicalize_dynamic_reloc
 225 #endif
 226
 227 #ifndef bfd_elfNN_bfd_link_hash_table_free
 228 #define bfd_elfNN_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
 229 #endif
 230
 231 #ifdef elf_backend_relocate_section
 232 #ifndef bfd_elfNN_bfd_link_hash_table_create
 233 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
 234 #endif
 235 #ifndef bfd_elfNN_bfd_link_add_symbols
 236 #define bfd_elfNN_bfd_link_add_symbols  bfd_elf_link_add_symbols
 237 #endif
 238 #ifndef bfd_elfNN_bfd_final_link
 239 #define bfd_elfNN_bfd_final_link        bfd_elf_final_link
 240 #endif
 241 #else /* ! defined (elf_backend_relocate_section) */
 242 /* If no backend relocate_section routine, use the generic linker.
 243    Note - this will prevent the port from being able to use some of
 244    the other features of the ELF linker, because the generic hash structure
 245    does not have the fields needed by the ELF linker.  In particular it
 246    means that linking directly to S-records will not work.  */
 247 #ifndef bfd_elfNN_bfd_link_hash_table_create
 248 #define bfd_elfNN_bfd_link_hash_table_create \
 249   _bfd_generic_link_hash_table_create
 250 #endif
 251 #ifndef bfd_elfNN_bfd_link_add_symbols
 252 #define bfd_elfNN_bfd_link_add_symbols  _bfd_generic_link_add_symbols
 253 #endif
 254 #ifndef bfd_elfNN_bfd_final_link
 255 #define bfd_elfNN_bfd_final_link        _bfd_generic_final_link
 256 #endif
 257 #endif /* ! defined (elf_backend_relocate_section) */
 258
 259 #ifndef bfd_elfNN_bfd_link_just_syms
 260 #define bfd_elfNN_bfd_link_just_syms    _bfd_elf_link_just_syms
 261 #endif
 262
 263 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
 264 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
 265   _bfd_elf_copy_link_hash_symbol_type
 266 #endif
 267
 268 #ifndef bfd_elfNN_bfd_link_split_section
 269 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
 270 #endif
 271
 272 #ifndef bfd_elfNN_archive_p
 273 #define bfd_elfNN_archive_p bfd_generic_archive_p
 274 #endif
 275
 276 #ifndef bfd_elfNN_write_archive_contents
 277 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
 278 #endif
 279
 280 #ifndef bfd_elfNN_mkobject
 281 #define bfd_elfNN_mkobject bfd_elf_make_generic_object
 282 #endif
 283
 284 #ifndef bfd_elfNN_mkcorefile
 285 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
 286 #endif
 287
 288 #ifndef bfd_elfNN_mkarchive
 289 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
 290 #endif
 291
 292 #ifndef bfd_elfNN_print_symbol
 293 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
 294 #endif
 295
 296 #ifndef elf_symbol_leading_char
 297 #define elf_symbol_leading_char 0
 298 #endif
 299
 300 #ifndef elf_info_to_howto
 301 #define elf_info_to_howto 0
 302 #endif
 303
 304 #ifndef elf_info_to_howto_rel
 305 #define elf_info_to_howto_rel 0
 306 #endif
 307
 308 #ifndef ELF_OSABI
 309 #define ELF_OSABI ELFOSABI_NONE
 310 #endif
 311
 312 #ifndef ELF_MAXPAGESIZE
 313 # error ELF_MAXPAGESIZE is not defined
 314 #define ELF_MAXPAGESIZE 1
 315 #endif
 316
 317 #ifndef ELF_COMMONPAGESIZE
 318 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
 319 #endif
 320
 321 #ifndef ELF_MINPAGESIZE
 322 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
 323 #endif
 324
 325 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
 326 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
 327 #endif
 328 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
 329 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
 330 #endif
 331
 332 #ifndef ELF_DYNAMIC_SEC_FLAGS
 333 /* Note that we set the SEC_IN_MEMORY flag for these sections.  */
 334 #define ELF_DYNAMIC_SEC_FLAGS                   \
 335   (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS      \
 336    | SEC_IN_MEMORY | SEC_LINKER_CREATED)
 337 #endif
 338
 339 #ifndef elf_backend_collect
 340 #define elf_backend_collect FALSE
 341 #endif
 342 #ifndef elf_backend_type_change_ok
 343 #define elf_backend_type_change_ok FALSE
 344 #endif
 345
 346 #ifndef elf_backend_sym_is_global
 347 #define elf_backend_sym_is_global       0
 348 #endif
 349 #ifndef elf_backend_object_p
 350 #define elf_backend_object_p            0
 351 #endif
 352 #ifndef elf_backend_symbol_processing
 353 #define elf_backend_symbol_processing   0
 354 #endif
 355 #ifndef elf_backend_symbol_table_processing
 356 #define elf_backend_symbol_table_processing     0
 357 #endif
 358 #ifndef elf_backend_get_symbol_type
 359 #define elf_backend_get_symbol_type 0
 360 #endif
 361 #ifndef elf_backend_archive_symbol_lookup
 362 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
 363 #endif
 364 #ifndef elf_backend_name_local_section_symbols
 365 #define elf_backend_name_local_section_symbols  0
 366 #endif
 367 #ifndef elf_backend_section_processing
 368 #define elf_backend_section_processing  0
 369 #endif
 370 #ifndef elf_backend_section_from_shdr
 371 #define elf_backend_section_from_shdr   _bfd_elf_make_section_from_shdr
 372 #endif
 373 #ifndef elf_backend_section_flags
 374 #define elf_backend_section_flags       0
 375 #endif
 376 #ifndef elf_backend_get_sec_type_attr
 377 #define elf_backend_get_sec_type_attr   _bfd_elf_get_sec_type_attr
 378 #endif
 379 #ifndef elf_backend_section_from_phdr
 380 #define elf_backend_section_from_phdr   _bfd_elf_make_section_from_phdr
 381 #endif
 382 #ifndef elf_backend_fake_sections
 383 #define elf_backend_fake_sections       0
 384 #endif
 385 #ifndef elf_backend_section_from_bfd_section
 386 #define elf_backend_section_from_bfd_section    0
 387 #endif
 388 #ifndef elf_backend_add_symbol_hook
 389 #define elf_backend_add_symbol_hook     0
 390 #endif
 391 #ifndef elf_backend_link_output_symbol_hook
 392 #define elf_backend_link_output_symbol_hook 0
 393 #endif
 394 #ifndef elf_backend_create_dynamic_sections
 395 #define elf_backend_create_dynamic_sections 0
 396 #endif
 397 #ifndef elf_backend_omit_section_dynsym
 398 #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym
 399 #endif
 400 #ifndef elf_backend_relocs_compatible
 401 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
 402 #endif
 403 #ifndef elf_backend_check_relocs
 404 #define elf_backend_check_relocs        0
 405 #endif
 406 #ifndef elf_backend_check_directives
 407 #define elf_backend_check_directives    0
 408 #endif
 409 #ifndef elf_backend_as_needed_cleanup
 410 #define elf_backend_as_needed_cleanup   0
 411 #endif
 412 #ifndef elf_backend_adjust_dynamic_symbol
 413 #define elf_backend_adjust_dynamic_symbol 0
 414 #endif
 415 #ifndef elf_backend_always_size_sections
 416 #define elf_backend_always_size_sections 0
 417 #endif
 418 #ifndef elf_backend_size_dynamic_sections
 419 #define elf_backend_size_dynamic_sections 0
 420 #endif
 421 #ifndef elf_backend_init_index_section
 422 #define elf_backend_init_index_section \
 423  ((void (*) (bfd *, struct bfd_link_info *)) bfd_void)
 424 #endif
 425 #ifndef elf_backend_relocate_section
 426 #define elf_backend_relocate_section    0
 427 #endif
 428 #ifndef elf_backend_finish_dynamic_symbol
 429 #define elf_backend_finish_dynamic_symbol       0
 430 #endif
 431 #ifndef elf_backend_finish_dynamic_sections
 432 #define elf_backend_finish_dynamic_sections     0
 433 #endif
 434 #ifndef elf_backend_begin_write_processing
 435 #define elf_backend_begin_write_processing      0
 436 #endif
 437 #ifndef elf_backend_final_write_processing
 438 #define elf_backend_final_write_processing      0
 439 #endif
 440 #ifndef elf_backend_additional_program_headers
 441 #define elf_backend_additional_program_headers  0
 442 #endif
 443 #ifndef elf_backend_modify_segment_map
 444 #define elf_backend_modify_segment_map  0
 445 #endif
 446 #ifndef elf_backend_modify_program_headers
 447 #define elf_backend_modify_program_headers      0
 448 #endif
 449 #ifndef elf_backend_ecoff_debug_swap
 450 #define elf_backend_ecoff_debug_swap    0
 451 #endif
 452 #ifndef elf_backend_bfd_from_remote_memory
 453 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
 454 #endif
 455 #ifndef elf_backend_got_header_size
 456 #define elf_backend_got_header_size     0
 457 #endif
 458 #ifndef elf_backend_got_elt_size
 459 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
 460 #endif
 461 #ifndef elf_backend_obj_attrs_vendor
 462 #define elf_backend_obj_attrs_vendor            NULL
 463 #endif
 464 #ifndef elf_backend_obj_attrs_section
 465 #define elf_backend_obj_attrs_section           NULL
 466 #endif
 467 #ifndef elf_backend_obj_attrs_arg_type
 468 #define elf_backend_obj_attrs_arg_type          NULL
 469 #endif
 470 #ifndef elf_backend_obj_attrs_section_type
 471 #define elf_backend_obj_attrs_section_type              SHT_GNU_ATTRIBUTES
 472 #endif
 473 #ifndef elf_backend_obj_attrs_order
 474 #define elf_backend_obj_attrs_order             NULL
 475 #endif
 476 #ifndef elf_backend_post_process_headers
 477 #define elf_backend_post_process_headers        NULL
 478 #endif
 479 #ifndef elf_backend_print_symbol_all
 480 #define elf_backend_print_symbol_all            NULL
 481 #endif
 482 #ifndef elf_backend_output_arch_local_syms
 483 #define elf_backend_output_arch_local_syms      NULL
 484 #endif
 485 #ifndef elf_backend_output_arch_syms
 486 #define elf_backend_output_arch_syms            NULL
 487 #endif
 488 #ifndef elf_backend_copy_indirect_symbol
 489 #define elf_backend_copy_indirect_symbol  _bfd_elf_link_hash_copy_indirect
 490 #endif
 491 #ifndef elf_backend_hide_symbol
 492 #define elf_backend_hide_symbol         _bfd_elf_link_hash_hide_symbol
 493 #endif
 494 #ifndef elf_backend_fixup_symbol
 495 #define elf_backend_fixup_symbol                NULL
 496 #endif
 497 #ifndef elf_backend_merge_symbol_attribute
 498 #define elf_backend_merge_symbol_attribute      NULL
 499 #endif
 500 #ifndef elf_backend_get_target_dtag
 501 #define elf_backend_get_target_dtag             NULL
 502 #endif
 503 #ifndef elf_backend_ignore_undef_symbol
 504 #define elf_backend_ignore_undef_symbol         NULL
 505 #endif
 506 #ifndef elf_backend_emit_relocs
 507 #define elf_backend_emit_relocs                 _bfd_elf_link_output_relocs
 508 #endif
 509 #ifndef elf_backend_count_relocs
 510 #define elf_backend_count_relocs                NULL
 511 #endif
 512 #ifndef elf_backend_grok_prstatus
 513 #define elf_backend_grok_prstatus               NULL
 514 #endif
 515 #ifndef elf_backend_grok_psinfo
 516 #define elf_backend_grok_psinfo                 NULL
 517 #endif
 518 #ifndef elf_backend_write_core_note
 519 #define elf_backend_write_core_note             NULL
 520 #endif
 521 #ifndef elf_backend_reloc_type_class
 522 #define elf_backend_reloc_type_class            _bfd_elf_reloc_type_class
 523 #endif
 524 #ifndef elf_backend_discard_info
 525 #define elf_backend_discard_info                NULL
 526 #endif
 527 #ifndef elf_backend_ignore_discarded_relocs
 528 #define elf_backend_ignore_discarded_relocs     NULL
 529 #endif
 530 #ifndef elf_backend_action_discarded
 531 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
 532 #endif
 533 #ifndef elf_backend_eh_frame_address_size
 534 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
 535 #endif
 536 #ifndef elf_backend_can_make_relative_eh_frame
 537 #define elf_backend_can_make_relative_eh_frame  _bfd_elf_can_make_relative
 538 #endif
 539 #ifndef elf_backend_can_make_lsda_relative_eh_frame
 540 #define elf_backend_can_make_lsda_relative_eh_frame     _bfd_elf_can_make_relative
 541 #endif
 542 #ifndef elf_backend_encode_eh_address
 543 #define elf_backend_encode_eh_address           _bfd_elf_encode_eh_address
 544 #endif
 545 #ifndef elf_backend_write_section
 546 #define elf_backend_write_section               NULL
 547 #endif
 548 #ifndef elf_backend_mips_irix_compat
 549 #define elf_backend_mips_irix_compat            NULL
 550 #endif
 551 #ifndef elf_backend_mips_rtype_to_howto
 552 #define elf_backend_mips_rtype_to_howto         NULL
 553 #endif
 554
 555 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
 556    sections, but not both.  They defined USE_REL to indicate SHT_REL
 557    sections, and left it undefined to indicated SHT_RELA sections.
 558    For backwards compatibility, we still support this usage.  */
 559 #ifndef USE_REL
 560 #define USE_REL 0
 561 #endif
 562
 563 /* Use these in new code.  */
 564 #ifndef elf_backend_may_use_rel_p
 565 #define elf_backend_may_use_rel_p USE_REL
 566 #endif
 567 #ifndef elf_backend_may_use_rela_p
 568 #define elf_backend_may_use_rela_p !USE_REL
 569 #endif
 570 #ifndef elf_backend_default_use_rela_p
 571 #define elf_backend_default_use_rela_p !USE_REL
 572 #endif
 573 #ifndef elf_backend_rela_plts_and_copies_p
 574 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
 575 #endif
 576
 577 #ifndef elf_backend_rela_normal
 578 #define elf_backend_rela_normal 0
 579 #endif
 580
 581 #ifndef elf_backend_plt_sym_val
 582 #define elf_backend_plt_sym_val NULL
 583 #endif
 584 #ifndef elf_backend_relplt_name
 585 #define elf_backend_relplt_name NULL
 586 #endif
 587
 588 #ifndef ELF_MACHINE_ALT1
 589 #define ELF_MACHINE_ALT1 0
 590 #endif
 591
 592 #ifndef ELF_MACHINE_ALT2
 593 #define ELF_MACHINE_ALT2 0
 594 #endif
 595
 596 #ifndef elf_backend_size_info
 597 #define elf_backend_size_info _bfd_elfNN_size_info
 598 #endif
 599
 600 #ifndef elf_backend_special_sections
 601 #define elf_backend_special_sections NULL
 602 #endif
 603
 604 #ifndef elf_backend_sign_extend_vma
 605 #define elf_backend_sign_extend_vma 0
 606 #endif
 607
 608 #ifndef elf_backend_link_order_error_handler
 609 #define elf_backend_link_order_error_handler _bfd_default_error_handler
 610 #endif
 611
 612 #ifndef elf_backend_common_definition
 613 #define elf_backend_common_definition _bfd_elf_common_definition
 614 #endif
 615
 616 #ifndef elf_backend_common_section_index
 617 #define elf_backend_common_section_index _bfd_elf_common_section_index
 618 #endif
 619
 620 #ifndef elf_backend_common_section
 621 #define elf_backend_common_section _bfd_elf_common_section
 622 #endif
 623
 624 #ifndef elf_backend_merge_symbol
 625 #define elf_backend_merge_symbol NULL
 626 #endif
 627
 628 #ifndef elf_backend_hash_symbol
 629 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
 630 #endif
 631
 632 #ifndef elf_backend_is_function_type
 633 #define elf_backend_is_function_type _bfd_elf_is_function_type
 634 #endif
 635
 636 extern const struct elf_size_info _bfd_elfNN_size_info;
 637
 638 static struct elf_backend_data elfNN_bed =
 639 {
 640   ELF_ARCH,                     /* arch */
 641   ELF_MACHINE_CODE,             /* elf_machine_code */
 642   ELF_OSABI,                    /* elf_osabi  */
 643   ELF_MAXPAGESIZE,              /* maxpagesize */
 644   ELF_MINPAGESIZE,              /* minpagesize */
 645   ELF_COMMONPAGESIZE,           /* commonpagesize */
 646   ELF_DYNAMIC_SEC_FLAGS,        /* dynamic_sec_flags */
 647   elf_info_to_howto,
 648   elf_info_to_howto_rel,
 649   elf_backend_sym_is_global,
 650   elf_backend_object_p,
 651   elf_backend_symbol_processing,
 652   elf_backend_symbol_table_processing,
 653   elf_backend_get_symbol_type,
 654   elf_backend_archive_symbol_lookup,
 655   elf_backend_name_local_section_symbols,
 656   elf_backend_section_processing,
 657   elf_backend_section_from_shdr,
 658   elf_backend_section_flags,
 659   elf_backend_get_sec_type_attr,
 660   elf_backend_section_from_phdr,
 661   elf_backend_fake_sections,
 662   elf_backend_section_from_bfd_section,
 663   elf_backend_add_symbol_hook,
 664   elf_backend_link_output_symbol_hook,
 665   elf_backend_create_dynamic_sections,
 666   elf_backend_omit_section_dynsym,
 667   elf_backend_relocs_compatible,
 668   elf_backend_check_relocs,
 669   elf_backend_check_directives,
 670   elf_backend_as_needed_cleanup,
 671   elf_backend_adjust_dynamic_symbol,
 672   elf_backend_always_size_sections,
 673   elf_backend_size_dynamic_sections,
 674   elf_backend_init_index_section,
 675   elf_backend_relocate_section,
 676   elf_backend_finish_dynamic_symbol,
 677   elf_backend_finish_dynamic_sections,
 678   elf_backend_begin_write_processing,
 679   elf_backend_final_write_processing,
 680   elf_backend_additional_program_headers,
 681   elf_backend_modify_segment_map,
 682   elf_backend_modify_program_headers,
 683   elf_backend_gc_keep,
 684   elf_backend_gc_mark_dynamic_ref,
 685   elf_backend_gc_mark_hook,
 686   elf_backend_gc_mark_extra_sections,
 687   elf_backend_gc_sweep_hook,
 688   elf_backend_post_process_headers,
 689   elf_backend_print_symbol_all,
 690   elf_backend_output_arch_local_syms,
 691   elf_backend_output_arch_syms,
 692   elf_backend_copy_indirect_symbol,
 693   elf_backend_hide_symbol,
 694   elf_backend_fixup_symbol,
 695   elf_backend_merge_symbol_attribute,
 696   elf_backend_get_target_dtag,
 697   elf_backend_ignore_undef_symbol,
 698   elf_backend_emit_relocs,
 699   elf_backend_count_relocs,
 700   elf_backend_grok_prstatus,
 701   elf_backend_grok_psinfo,
 702   elf_backend_write_core_note,
 703   elf_backend_reloc_type_class,
 704   elf_backend_discard_info,
 705   elf_backend_ignore_discarded_relocs,
 706   elf_backend_action_discarded,
 707   elf_backend_eh_frame_address_size,
 708   elf_backend_can_make_relative_eh_frame,
 709   elf_backend_can_make_lsda_relative_eh_frame,
 710   elf_backend_encode_eh_address,
 711   elf_backend_write_section,
 712   elf_backend_mips_irix_compat,
 713   elf_backend_mips_rtype_to_howto,
 714   elf_backend_ecoff_debug_swap,
 715   elf_backend_bfd_from_remote_memory,
 716   elf_backend_plt_sym_val,
 717   elf_backend_common_definition,
 718   elf_backend_common_section_index,
 719   elf_backend_common_section,
 720   elf_backend_merge_symbol,
 721   elf_backend_hash_symbol,
 722   elf_backend_is_function_type,
 723   elf_backend_link_order_error_handler,
 724   elf_backend_relplt_name,
 725   ELF_MACHINE_ALT1,
 726   ELF_MACHINE_ALT2,
 727   &elf_backend_size_info,
 728   elf_backend_special_sections,
 729   elf_backend_got_header_size,
 730   elf_backend_got_elt_size,
 731   elf_backend_obj_attrs_vendor,
 732   elf_backend_obj_attrs_section,
 733   elf_backend_obj_attrs_arg_type,
 734   elf_backend_obj_attrs_section_type,
 735   elf_backend_obj_attrs_order,
 736   elf_backend_collect,
 737   elf_backend_type_change_ok,
 738   elf_backend_may_use_rel_p,
 739   elf_backend_may_use_rela_p,
 740   elf_backend_default_use_rela_p,
 741   elf_backend_rela_plts_and_copies_p,
 742   elf_backend_rela_normal,
 743   elf_backend_sign_extend_vma,
 744   elf_backend_want_got_plt,
 745   elf_backend_plt_readonly,
 746   elf_backend_want_plt_sym,
 747   elf_backend_plt_not_loaded,
 748   elf_backend_plt_alignment,
 749   elf_backend_can_gc_sections,
 750   elf_backend_can_refcount,
 751   elf_backend_want_got_sym,
 752   elf_backend_want_dynbss,
 753   elf_backend_want_p_paddr_set_to_zero,
 754   elf_backend_default_execstack
 755 };
 756
 757 /* Forward declaration for use when initialising alternative_target field.  */
 758 #ifdef TARGET_LITTLE_SYM
 759 extern const bfd_target TARGET_LITTLE_SYM;
 760 #endif
 761
 762 #ifdef TARGET_BIG_SYM
 763 const bfd_target TARGET_BIG_SYM =
 764 {
 765   /* name: identify kind of target */
 766   TARGET_BIG_NAME,
 767
 768   /* flavour: general indication about file */
 769   bfd_target_elf_flavour,
 770
 771   /* byteorder: data is big endian */
 772   BFD_ENDIAN_BIG,
 773
 774   /* header_byteorder: header is also big endian */
 775   BFD_ENDIAN_BIG,
 776
 777   /* object_flags: mask of all file flags */
 778   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
 779    | DYNAMIC | WP_TEXT | D_PAGED),
 780
 781   /* section_flags: mask of all section flags */
 782   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
 783    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
 784    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
 785
 786    /* leading_symbol_char: is the first char of a user symbol
 787       predictable, and if so what is it */
 788   elf_symbol_leading_char,
 789
 790   /* ar_pad_char: pad character for filenames within an archive header
 791      FIXME:  this really has nothing to do with ELF, this is a characteristic
 792      of the archiver and/or os and should be independently tunable */
 793   '/',
 794
 795   /* ar_max_namelen: maximum number of characters in an archive header
 796      FIXME:  this really has nothing to do with ELF, this is a characteristic
 797      of the archiver and should be independently tunable.  The System V ABI,
 798      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
 799   15,
 800
 801   /* Routines to byte-swap various sized integers from the data sections */
 802   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 803     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 804     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 805
 806   /* Routines to byte-swap various sized integers from the file headers */
 807   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 808     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 809     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 810
 811   /* bfd_check_format: check the format of a file being read */
 812   { _bfd_dummy_target,          /* unknown format */
 813     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
 814     bfd_elfNN_archive_p,        /* an archive */
 815     bfd_elfNN_core_file_p       /* a core file */
 816   },
 817
 818   /* bfd_set_format: set the format of a file being written */
 819   { bfd_false,
 820     bfd_elfNN_mkobject,
 821     bfd_elfNN_mkarchive,
 822     bfd_elfNN_mkcorefile
 823   },
 824
 825   /* bfd_write_contents: write cached information into a file being written */
 826   { bfd_false,
 827     bfd_elfNN_write_object_contents,
 828     bfd_elfNN_write_archive_contents,
 829     bfd_elfNN_write_corefile_contents,
 830   },
 831
 832   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
 833   BFD_JUMP_TABLE_COPY (bfd_elfNN),
 834   BFD_JUMP_TABLE_CORE (bfd_elfNN),
 835 #ifdef bfd_elfNN_archive_functions
 836   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
 837 #else
 838   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 839 #endif
 840   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
 841   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
 842   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
 843   BFD_JUMP_TABLE_LINK (bfd_elfNN),
 844   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
 845
 846   /* Alternative endian target.  */
 847 #ifdef TARGET_LITTLE_SYM
 848   & TARGET_LITTLE_SYM,
 849 #else
 850   NULL,
 851 #endif
 852
 853   /* backend_data: */
 854   &elfNN_bed
 855 };
 856 #endif
 857
 858 #ifdef TARGET_LITTLE_SYM
 859 const bfd_target TARGET_LITTLE_SYM =
 860 {
 861   /* name: identify kind of target */
 862   TARGET_LITTLE_NAME,
 863
 864   /* flavour: general indication about file */
 865   bfd_target_elf_flavour,
 866
 867   /* byteorder: data is little endian */
 868   BFD_ENDIAN_LITTLE,
 869
 870   /* header_byteorder: header is also little endian */
 871   BFD_ENDIAN_LITTLE,
 872
 873   /* object_flags: mask of all file flags */
 874   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
 875    | DYNAMIC | WP_TEXT | D_PAGED),
 876
 877   /* section_flags: mask of all section flags */
 878   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
 879    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
 880    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
 881
 882    /* leading_symbol_char: is the first char of a user symbol
 883       predictable, and if so what is it */
 884   elf_symbol_leading_char,
 885
 886   /* ar_pad_char: pad character for filenames within an archive header
 887      FIXME:  this really has nothing to do with ELF, this is a characteristic
 888      of the archiver and/or os and should be independently tunable */
 889   '/',
 890
 891   /* ar_max_namelen: maximum number of characters in an archive header
 892      FIXME:  this really has nothing to do with ELF, this is a characteristic
 893      of the archiver and should be independently tunable.  The System V ABI,
 894      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
 895   15,
 896
 897   /* Routines to byte-swap various sized integers from the data sections */
 898   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 899     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 900     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 901
 902   /* Routines to byte-swap various sized integers from the file headers */
 903   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 904     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 905     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 906
 907   /* bfd_check_format: check the format of a file being read */
 908   { _bfd_dummy_target,          /* unknown format */
 909     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
 910     bfd_elfNN_archive_p,        /* an archive */
 911     bfd_elfNN_core_file_p       /* a core file */
 912   },
 913
 914   /* bfd_set_format: set the format of a file being written */
 915   { bfd_false,
 916     bfd_elfNN_mkobject,
 917     bfd_elfNN_mkarchive,
 918     bfd_elfNN_mkcorefile
 919   },
 920
 921   /* bfd_write_contents: write cached information into a file being written */
 922   { bfd_false,
 923     bfd_elfNN_write_object_contents,
 924     bfd_elfNN_write_archive_contents,
 925     bfd_elfNN_write_corefile_contents,
 926   },
 927
 928   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
 929   BFD_JUMP_TABLE_COPY (bfd_elfNN),
 930   BFD_JUMP_TABLE_CORE (bfd_elfNN),
 931 #ifdef bfd_elfNN_archive_functions
 932   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
 933 #else
 934   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 935 #endif
 936   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
 937   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
 938   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
 939   BFD_JUMP_TABLE_LINK (bfd_elfNN),
 940   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
 941
 942   /* Alternative endian target.  */
 943 #ifdef TARGET_BIG_SYM
 944   & TARGET_BIG_SYM,
 945 #else
 946   NULL,
 947 #endif
 948
 949   /* backend_data: */
 950   &elfNN_bed
 951 };
 952 #endif