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_link_split_section
 264 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
 265 #endif
 266
 267 #ifndef bfd_elfNN_archive_p
 268 #define bfd_elfNN_archive_p bfd_generic_archive_p
 269 #endif
 270
 271 #ifndef bfd_elfNN_write_archive_contents
 272 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
 273 #endif
 274
 275 #ifndef bfd_elfNN_mkobject
 276 #define bfd_elfNN_mkobject bfd_elf_make_generic_object
 277 #endif
 278
 279 #ifndef bfd_elfNN_mkcorefile
 280 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
 281 #endif
 282
 283 #ifndef bfd_elfNN_mkarchive
 284 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
 285 #endif
 286
 287 #ifndef bfd_elfNN_print_symbol
 288 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
 289 #endif
 290
 291 #ifndef elf_symbol_leading_char
 292 #define elf_symbol_leading_char 0
 293 #endif
 294
 295 #ifndef elf_info_to_howto
 296 #define elf_info_to_howto 0
 297 #endif
 298
 299 #ifndef elf_info_to_howto_rel
 300 #define elf_info_to_howto_rel 0
 301 #endif
 302
 303 #ifndef ELF_OSABI
 304 #define ELF_OSABI ELFOSABI_NONE
 305 #endif
 306
 307 #ifndef ELF_MAXPAGESIZE
 308 # error ELF_MAXPAGESIZE is not defined
 309 #define ELF_MAXPAGESIZE 1
 310 #endif
 311
 312 #ifndef ELF_COMMONPAGESIZE
 313 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
 314 #endif
 315
 316 #ifndef ELF_MINPAGESIZE
 317 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
 318 #endif
 319
 320 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
 321 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
 322 #endif
 323 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
 324 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
 325 #endif
 326
 327 #ifndef ELF_DYNAMIC_SEC_FLAGS
 328 /* Note that we set the SEC_IN_MEMORY flag for these sections.  */
 329 #define ELF_DYNAMIC_SEC_FLAGS                   \
 330   (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS      \
 331    | SEC_IN_MEMORY | SEC_LINKER_CREATED)
 332 #endif
 333
 334 #ifndef elf_backend_collect
 335 #define elf_backend_collect FALSE
 336 #endif
 337 #ifndef elf_backend_type_change_ok
 338 #define elf_backend_type_change_ok FALSE
 339 #endif
 340
 341 #ifndef elf_backend_sym_is_global
 342 #define elf_backend_sym_is_global       0
 343 #endif
 344 #ifndef elf_backend_object_p
 345 #define elf_backend_object_p            0
 346 #endif
 347 #ifndef elf_backend_symbol_processing
 348 #define elf_backend_symbol_processing   0
 349 #endif
 350 #ifndef elf_backend_symbol_table_processing
 351 #define elf_backend_symbol_table_processing     0
 352 #endif
 353 #ifndef elf_backend_get_symbol_type
 354 #define elf_backend_get_symbol_type 0
 355 #endif
 356 #ifndef elf_backend_archive_symbol_lookup
 357 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
 358 #endif
 359 #ifndef elf_backend_name_local_section_symbols
 360 #define elf_backend_name_local_section_symbols  0
 361 #endif
 362 #ifndef elf_backend_section_processing
 363 #define elf_backend_section_processing  0
 364 #endif
 365 #ifndef elf_backend_section_from_shdr
 366 #define elf_backend_section_from_shdr   _bfd_elf_make_section_from_shdr
 367 #endif
 368 #ifndef elf_backend_section_flags
 369 #define elf_backend_section_flags       0
 370 #endif
 371 #ifndef elf_backend_get_sec_type_attr
 372 #define elf_backend_get_sec_type_attr   _bfd_elf_get_sec_type_attr
 373 #endif
 374 #ifndef elf_backend_section_from_phdr
 375 #define elf_backend_section_from_phdr   _bfd_elf_make_section_from_phdr
 376 #endif
 377 #ifndef elf_backend_fake_sections
 378 #define elf_backend_fake_sections       0
 379 #endif
 380 #ifndef elf_backend_section_from_bfd_section
 381 #define elf_backend_section_from_bfd_section    0
 382 #endif
 383 #ifndef elf_backend_add_symbol_hook
 384 #define elf_backend_add_symbol_hook     0
 385 #endif
 386 #ifndef elf_backend_link_output_symbol_hook
 387 #define elf_backend_link_output_symbol_hook 0
 388 #endif
 389 #ifndef elf_backend_create_dynamic_sections
 390 #define elf_backend_create_dynamic_sections 0
 391 #endif
 392 #ifndef elf_backend_omit_section_dynsym
 393 #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym
 394 #endif
 395 #ifndef elf_backend_relocs_compatible
 396 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
 397 #endif
 398 #ifndef elf_backend_check_relocs
 399 #define elf_backend_check_relocs        0
 400 #endif
 401 #ifndef elf_backend_check_directives
 402 #define elf_backend_check_directives    0
 403 #endif
 404 #ifndef elf_backend_as_needed_cleanup
 405 #define elf_backend_as_needed_cleanup   0
 406 #endif
 407 #ifndef elf_backend_adjust_dynamic_symbol
 408 #define elf_backend_adjust_dynamic_symbol 0
 409 #endif
 410 #ifndef elf_backend_always_size_sections
 411 #define elf_backend_always_size_sections 0
 412 #endif
 413 #ifndef elf_backend_size_dynamic_sections
 414 #define elf_backend_size_dynamic_sections 0
 415 #endif
 416 #ifndef elf_backend_init_index_section
 417 #define elf_backend_init_index_section \
 418  ((void (*) (bfd *, struct bfd_link_info *)) bfd_void)
 419 #endif
 420 #ifndef elf_backend_relocate_section
 421 #define elf_backend_relocate_section    0
 422 #endif
 423 #ifndef elf_backend_finish_dynamic_symbol
 424 #define elf_backend_finish_dynamic_symbol       0
 425 #endif
 426 #ifndef elf_backend_finish_dynamic_sections
 427 #define elf_backend_finish_dynamic_sections     0
 428 #endif
 429 #ifndef elf_backend_begin_write_processing
 430 #define elf_backend_begin_write_processing      0
 431 #endif
 432 #ifndef elf_backend_final_write_processing
 433 #define elf_backend_final_write_processing      0
 434 #endif
 435 #ifndef elf_backend_additional_program_headers
 436 #define elf_backend_additional_program_headers  0
 437 #endif
 438 #ifndef elf_backend_modify_segment_map
 439 #define elf_backend_modify_segment_map  0
 440 #endif
 441 #ifndef elf_backend_modify_program_headers
 442 #define elf_backend_modify_program_headers      0
 443 #endif
 444 #ifndef elf_backend_ecoff_debug_swap
 445 #define elf_backend_ecoff_debug_swap    0
 446 #endif
 447 #ifndef elf_backend_bfd_from_remote_memory
 448 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
 449 #endif
 450 #ifndef elf_backend_got_header_size
 451 #define elf_backend_got_header_size     0
 452 #endif
 453 #ifndef elf_backend_got_elt_size
 454 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
 455 #endif
 456 #ifndef elf_backend_obj_attrs_vendor
 457 #define elf_backend_obj_attrs_vendor            NULL
 458 #endif
 459 #ifndef elf_backend_obj_attrs_section
 460 #define elf_backend_obj_attrs_section           NULL
 461 #endif
 462 #ifndef elf_backend_obj_attrs_arg_type
 463 #define elf_backend_obj_attrs_arg_type          NULL
 464 #endif
 465 #ifndef elf_backend_obj_attrs_section_type
 466 #define elf_backend_obj_attrs_section_type              SHT_GNU_ATTRIBUTES
 467 #endif
 468 #ifndef elf_backend_obj_attrs_order
 469 #define elf_backend_obj_attrs_order             NULL
 470 #endif
 471 #ifndef elf_backend_post_process_headers
 472 #define elf_backend_post_process_headers        NULL
 473 #endif
 474 #ifndef elf_backend_print_symbol_all
 475 #define elf_backend_print_symbol_all            NULL
 476 #endif
 477 #ifndef elf_backend_output_arch_local_syms
 478 #define elf_backend_output_arch_local_syms      NULL
 479 #endif
 480 #ifndef elf_backend_output_arch_syms
 481 #define elf_backend_output_arch_syms            NULL
 482 #endif
 483 #ifndef elf_backend_copy_indirect_symbol
 484 #define elf_backend_copy_indirect_symbol  _bfd_elf_link_hash_copy_indirect
 485 #endif
 486 #ifndef elf_backend_hide_symbol
 487 #define elf_backend_hide_symbol         _bfd_elf_link_hash_hide_symbol
 488 #endif
 489 #ifndef elf_backend_fixup_symbol
 490 #define elf_backend_fixup_symbol                NULL
 491 #endif
 492 #ifndef elf_backend_merge_symbol_attribute
 493 #define elf_backend_merge_symbol_attribute      NULL
 494 #endif
 495 #ifndef elf_backend_get_target_dtag
 496 #define elf_backend_get_target_dtag             NULL
 497 #endif
 498 #ifndef elf_backend_ignore_undef_symbol
 499 #define elf_backend_ignore_undef_symbol         NULL
 500 #endif
 501 #ifndef elf_backend_emit_relocs
 502 #define elf_backend_emit_relocs                 _bfd_elf_link_output_relocs
 503 #endif
 504 #ifndef elf_backend_count_relocs
 505 #define elf_backend_count_relocs                NULL
 506 #endif
 507 #ifndef elf_backend_grok_prstatus
 508 #define elf_backend_grok_prstatus               NULL
 509 #endif
 510 #ifndef elf_backend_grok_psinfo
 511 #define elf_backend_grok_psinfo                 NULL
 512 #endif
 513 #ifndef elf_backend_write_core_note
 514 #define elf_backend_write_core_note             NULL
 515 #endif
 516 #ifndef elf_backend_reloc_type_class
 517 #define elf_backend_reloc_type_class            _bfd_elf_reloc_type_class
 518 #endif
 519 #ifndef elf_backend_discard_info
 520 #define elf_backend_discard_info                NULL
 521 #endif
 522 #ifndef elf_backend_ignore_discarded_relocs
 523 #define elf_backend_ignore_discarded_relocs     NULL
 524 #endif
 525 #ifndef elf_backend_action_discarded
 526 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
 527 #endif
 528 #ifndef elf_backend_eh_frame_address_size
 529 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
 530 #endif
 531 #ifndef elf_backend_can_make_relative_eh_frame
 532 #define elf_backend_can_make_relative_eh_frame  _bfd_elf_can_make_relative
 533 #endif
 534 #ifndef elf_backend_can_make_lsda_relative_eh_frame
 535 #define elf_backend_can_make_lsda_relative_eh_frame     _bfd_elf_can_make_relative
 536 #endif
 537 #ifndef elf_backend_encode_eh_address
 538 #define elf_backend_encode_eh_address           _bfd_elf_encode_eh_address
 539 #endif
 540 #ifndef elf_backend_write_section
 541 #define elf_backend_write_section               NULL
 542 #endif
 543 #ifndef elf_backend_mips_irix_compat
 544 #define elf_backend_mips_irix_compat            NULL
 545 #endif
 546 #ifndef elf_backend_mips_rtype_to_howto
 547 #define elf_backend_mips_rtype_to_howto         NULL
 548 #endif
 549
 550 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
 551    sections, but not both.  They defined USE_REL to indicate SHT_REL
 552    sections, and left it undefined to indicated SHT_RELA sections.
 553    For backwards compatibility, we still support this usage.  */
 554 #ifndef USE_REL
 555 #define USE_REL 0
 556 #endif
 557
 558 /* Use these in new code.  */
 559 #ifndef elf_backend_may_use_rel_p
 560 #define elf_backend_may_use_rel_p USE_REL
 561 #endif
 562 #ifndef elf_backend_may_use_rela_p
 563 #define elf_backend_may_use_rela_p !USE_REL
 564 #endif
 565 #ifndef elf_backend_default_use_rela_p
 566 #define elf_backend_default_use_rela_p !USE_REL
 567 #endif
 568 #ifndef elf_backend_rela_plts_and_copies_p
 569 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
 570 #endif
 571
 572 #ifndef elf_backend_rela_normal
 573 #define elf_backend_rela_normal 0
 574 #endif
 575
 576 #ifndef elf_backend_plt_sym_val
 577 #define elf_backend_plt_sym_val NULL
 578 #endif
 579 #ifndef elf_backend_relplt_name
 580 #define elf_backend_relplt_name NULL
 581 #endif
 582
 583 #ifndef ELF_MACHINE_ALT1
 584 #define ELF_MACHINE_ALT1 0
 585 #endif
 586
 587 #ifndef ELF_MACHINE_ALT2
 588 #define ELF_MACHINE_ALT2 0
 589 #endif
 590
 591 #ifndef elf_backend_size_info
 592 #define elf_backend_size_info _bfd_elfNN_size_info
 593 #endif
 594
 595 #ifndef elf_backend_special_sections
 596 #define elf_backend_special_sections NULL
 597 #endif
 598
 599 #ifndef elf_backend_sign_extend_vma
 600 #define elf_backend_sign_extend_vma 0
 601 #endif
 602
 603 #ifndef elf_backend_link_order_error_handler
 604 #define elf_backend_link_order_error_handler _bfd_default_error_handler
 605 #endif
 606
 607 #ifndef elf_backend_common_definition
 608 #define elf_backend_common_definition _bfd_elf_common_definition
 609 #endif
 610
 611 #ifndef elf_backend_common_section_index
 612 #define elf_backend_common_section_index _bfd_elf_common_section_index
 613 #endif
 614
 615 #ifndef elf_backend_common_section
 616 #define elf_backend_common_section _bfd_elf_common_section
 617 #endif
 618
 619 #ifndef elf_backend_merge_symbol
 620 #define elf_backend_merge_symbol NULL
 621 #endif
 622
 623 #ifndef elf_backend_hash_symbol
 624 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
 625 #endif
 626
 627 #ifndef elf_backend_is_function_type
 628 #define elf_backend_is_function_type _bfd_elf_is_function_type
 629 #endif
 630
 631 extern const struct elf_size_info _bfd_elfNN_size_info;
 632
 633 static struct elf_backend_data elfNN_bed =
 634 {
 635   ELF_ARCH,                     /* arch */
 636   ELF_MACHINE_CODE,             /* elf_machine_code */
 637   ELF_OSABI,                    /* elf_osabi  */
 638   ELF_MAXPAGESIZE,              /* maxpagesize */
 639   ELF_MINPAGESIZE,              /* minpagesize */
 640   ELF_COMMONPAGESIZE,           /* commonpagesize */
 641   ELF_DYNAMIC_SEC_FLAGS,        /* dynamic_sec_flags */
 642   elf_info_to_howto,
 643   elf_info_to_howto_rel,
 644   elf_backend_sym_is_global,
 645   elf_backend_object_p,
 646   elf_backend_symbol_processing,
 647   elf_backend_symbol_table_processing,
 648   elf_backend_get_symbol_type,
 649   elf_backend_archive_symbol_lookup,
 650   elf_backend_name_local_section_symbols,
 651   elf_backend_section_processing,
 652   elf_backend_section_from_shdr,
 653   elf_backend_section_flags,
 654   elf_backend_get_sec_type_attr,
 655   elf_backend_section_from_phdr,
 656   elf_backend_fake_sections,
 657   elf_backend_section_from_bfd_section,
 658   elf_backend_add_symbol_hook,
 659   elf_backend_link_output_symbol_hook,
 660   elf_backend_create_dynamic_sections,
 661   elf_backend_omit_section_dynsym,
 662   elf_backend_relocs_compatible,
 663   elf_backend_check_relocs,
 664   elf_backend_check_directives,
 665   elf_backend_as_needed_cleanup,
 666   elf_backend_adjust_dynamic_symbol,
 667   elf_backend_always_size_sections,
 668   elf_backend_size_dynamic_sections,
 669   elf_backend_init_index_section,
 670   elf_backend_relocate_section,
 671   elf_backend_finish_dynamic_symbol,
 672   elf_backend_finish_dynamic_sections,
 673   elf_backend_begin_write_processing,
 674   elf_backend_final_write_processing,
 675   elf_backend_additional_program_headers,
 676   elf_backend_modify_segment_map,
 677   elf_backend_modify_program_headers,
 678   elf_backend_gc_keep,
 679   elf_backend_gc_mark_dynamic_ref,
 680   elf_backend_gc_mark_hook,
 681   elf_backend_gc_mark_extra_sections,
 682   elf_backend_gc_sweep_hook,
 683   elf_backend_post_process_headers,
 684   elf_backend_print_symbol_all,
 685   elf_backend_output_arch_local_syms,
 686   elf_backend_output_arch_syms,
 687   elf_backend_copy_indirect_symbol,
 688   elf_backend_hide_symbol,
 689   elf_backend_fixup_symbol,
 690   elf_backend_merge_symbol_attribute,
 691   elf_backend_get_target_dtag,
 692   elf_backend_ignore_undef_symbol,
 693   elf_backend_emit_relocs,
 694   elf_backend_count_relocs,
 695   elf_backend_grok_prstatus,
 696   elf_backend_grok_psinfo,
 697   elf_backend_write_core_note,
 698   elf_backend_reloc_type_class,
 699   elf_backend_discard_info,
 700   elf_backend_ignore_discarded_relocs,
 701   elf_backend_action_discarded,
 702   elf_backend_eh_frame_address_size,
 703   elf_backend_can_make_relative_eh_frame,
 704   elf_backend_can_make_lsda_relative_eh_frame,
 705   elf_backend_encode_eh_address,
 706   elf_backend_write_section,
 707   elf_backend_mips_irix_compat,
 708   elf_backend_mips_rtype_to_howto,
 709   elf_backend_ecoff_debug_swap,
 710   elf_backend_bfd_from_remote_memory,
 711   elf_backend_plt_sym_val,
 712   elf_backend_common_definition,
 713   elf_backend_common_section_index,
 714   elf_backend_common_section,
 715   elf_backend_merge_symbol,
 716   elf_backend_hash_symbol,
 717   elf_backend_is_function_type,
 718   elf_backend_link_order_error_handler,
 719   elf_backend_relplt_name,
 720   ELF_MACHINE_ALT1,
 721   ELF_MACHINE_ALT2,
 722   &elf_backend_size_info,
 723   elf_backend_special_sections,
 724   elf_backend_got_header_size,
 725   elf_backend_got_elt_size,
 726   elf_backend_obj_attrs_vendor,
 727   elf_backend_obj_attrs_section,
 728   elf_backend_obj_attrs_arg_type,
 729   elf_backend_obj_attrs_section_type,
 730   elf_backend_obj_attrs_order,
 731   elf_backend_collect,
 732   elf_backend_type_change_ok,
 733   elf_backend_may_use_rel_p,
 734   elf_backend_may_use_rela_p,
 735   elf_backend_default_use_rela_p,
 736   elf_backend_rela_plts_and_copies_p,
 737   elf_backend_rela_normal,
 738   elf_backend_sign_extend_vma,
 739   elf_backend_want_got_plt,
 740   elf_backend_plt_readonly,
 741   elf_backend_want_plt_sym,
 742   elf_backend_plt_not_loaded,
 743   elf_backend_plt_alignment,
 744   elf_backend_can_gc_sections,
 745   elf_backend_can_refcount,
 746   elf_backend_want_got_sym,
 747   elf_backend_want_dynbss,
 748   elf_backend_want_p_paddr_set_to_zero,
 749   elf_backend_default_execstack
 750 };
 751
 752 /* Forward declaration for use when initialising alternative_target field.  */
 753 #ifdef TARGET_LITTLE_SYM
 754 extern const bfd_target TARGET_LITTLE_SYM;
 755 #endif
 756
 757 #ifdef TARGET_BIG_SYM
 758 const bfd_target TARGET_BIG_SYM =
 759 {
 760   /* name: identify kind of target */
 761   TARGET_BIG_NAME,
 762
 763   /* flavour: general indication about file */
 764   bfd_target_elf_flavour,
 765
 766   /* byteorder: data is big endian */
 767   BFD_ENDIAN_BIG,
 768
 769   /* header_byteorder: header is also big endian */
 770   BFD_ENDIAN_BIG,
 771
 772   /* object_flags: mask of all file flags */
 773   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
 774    | DYNAMIC | WP_TEXT | D_PAGED),
 775
 776   /* section_flags: mask of all section flags */
 777   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
 778    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
 779    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
 780
 781    /* leading_symbol_char: is the first char of a user symbol
 782       predictable, and if so what is it */
 783   elf_symbol_leading_char,
 784
 785   /* ar_pad_char: pad character for filenames within an archive header
 786      FIXME:  this really has nothing to do with ELF, this is a characteristic
 787      of the archiver and/or os and should be independently tunable */
 788   '/',
 789
 790   /* ar_max_namelen: maximum number of characters in an archive header
 791      FIXME:  this really has nothing to do with ELF, this is a characteristic
 792      of the archiver and should be independently tunable.  The System V ABI,
 793      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
 794   15,
 795
 796   /* Routines to byte-swap various sized integers from the data sections */
 797   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 798     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 799     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 800
 801   /* Routines to byte-swap various sized integers from the file headers */
 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   /* bfd_check_format: check the format of a file being read */
 807   { _bfd_dummy_target,          /* unknown format */
 808     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
 809     bfd_elfNN_archive_p,        /* an archive */
 810     bfd_elfNN_core_file_p       /* a core file */
 811   },
 812
 813   /* bfd_set_format: set the format of a file being written */
 814   { bfd_false,
 815     bfd_elfNN_mkobject,
 816     bfd_elfNN_mkarchive,
 817     bfd_elfNN_mkcorefile
 818   },
 819
 820   /* bfd_write_contents: write cached information into a file being written */
 821   { bfd_false,
 822     bfd_elfNN_write_object_contents,
 823     bfd_elfNN_write_archive_contents,
 824     bfd_elfNN_write_corefile_contents,
 825   },
 826
 827   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
 828   BFD_JUMP_TABLE_COPY (bfd_elfNN),
 829   BFD_JUMP_TABLE_CORE (bfd_elfNN),
 830 #ifdef bfd_elfNN_archive_functions
 831   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
 832 #else
 833   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 834 #endif
 835   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
 836   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
 837   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
 838   BFD_JUMP_TABLE_LINK (bfd_elfNN),
 839   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
 840
 841   /* Alternative endian target.  */
 842 #ifdef TARGET_LITTLE_SYM
 843   & TARGET_LITTLE_SYM,
 844 #else
 845   NULL,
 846 #endif
 847
 848   /* backend_data: */
 849   &elfNN_bed
 850 };
 851 #endif
 852
 853 #ifdef TARGET_LITTLE_SYM
 854 const bfd_target TARGET_LITTLE_SYM =
 855 {
 856   /* name: identify kind of target */
 857   TARGET_LITTLE_NAME,
 858
 859   /* flavour: general indication about file */
 860   bfd_target_elf_flavour,
 861
 862   /* byteorder: data is little endian */
 863   BFD_ENDIAN_LITTLE,
 864
 865   /* header_byteorder: header is also little endian */
 866   BFD_ENDIAN_LITTLE,
 867
 868   /* object_flags: mask of all file flags */
 869   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
 870    | DYNAMIC | WP_TEXT | D_PAGED),
 871
 872   /* section_flags: mask of all section flags */
 873   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
 874    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
 875    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
 876
 877    /* leading_symbol_char: is the first char of a user symbol
 878       predictable, and if so what is it */
 879   elf_symbol_leading_char,
 880
 881   /* ar_pad_char: pad character for filenames within an archive header
 882      FIXME:  this really has nothing to do with ELF, this is a characteristic
 883      of the archiver and/or os and should be independently tunable */
 884   '/',
 885
 886   /* ar_max_namelen: maximum number of characters in an archive header
 887      FIXME:  this really has nothing to do with ELF, this is a characteristic
 888      of the archiver and should be independently tunable.  The System V ABI,
 889      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
 890   15,
 891
 892   /* Routines to byte-swap various sized integers from the data sections */
 893   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 894     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 895     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 896
 897   /* Routines to byte-swap various sized integers from the file headers */
 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   /* bfd_check_format: check the format of a file being read */
 903   { _bfd_dummy_target,          /* unknown format */
 904     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
 905     bfd_elfNN_archive_p,        /* an archive */
 906     bfd_elfNN_core_file_p       /* a core file */
 907   },
 908
 909   /* bfd_set_format: set the format of a file being written */
 910   { bfd_false,
 911     bfd_elfNN_mkobject,
 912     bfd_elfNN_mkarchive,
 913     bfd_elfNN_mkcorefile
 914   },
 915
 916   /* bfd_write_contents: write cached information into a file being written */
 917   { bfd_false,
 918     bfd_elfNN_write_object_contents,
 919     bfd_elfNN_write_archive_contents,
 920     bfd_elfNN_write_corefile_contents,
 921   },
 922
 923   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
 924   BFD_JUMP_TABLE_COPY (bfd_elfNN),
 925   BFD_JUMP_TABLE_CORE (bfd_elfNN),
 926 #ifdef bfd_elfNN_archive_functions
 927   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
 928 #else
 929   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 930 #endif
 931   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
 932   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
 933   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
 934   BFD_JUMP_TABLE_LINK (bfd_elfNN),
 935   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
 936
 937   /* Alternative endian target.  */
 938 #ifdef TARGET_BIG_SYM
 939   & TARGET_BIG_SYM,
 940 #else
 941   NULL,
 942 #endif
 943
 944   /* backend_data: */
 945   &elfNN_bed
 946 };
 947 #endif