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