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