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