bfd/elfxx-target.h

   1 /* Target definitions for NN-bit ELF
   2    Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
   3    2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
   4    Free Software Foundation, Inc.
   5
   6    This file is part of BFD, the Binary File Descriptor library.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21    MA 02110-1301, USA.  */
  22
  23
  24 /* This structure contains everything that BFD knows about a target.
  25    It includes things like its byte order, name, what routines to call
  26    to do various operations, etc.  Every BFD points to a target structure
  27    with its "xvec" member.
  28
  29    There are two such structures here:  one for big-endian machines and
  30    one for little-endian machines.   */
  31
  32 #ifndef bfd_elfNN_close_and_cleanup
  33 #define bfd_elfNN_close_and_cleanup _bfd_elf_close_and_cleanup
  34 #endif
  35 #ifndef bfd_elfNN_bfd_free_cached_info
  36 #define bfd_elfNN_bfd_free_cached_info _bfd_free_cached_info
  37 #endif
  38 #ifndef bfd_elfNN_get_section_contents
  39 #define bfd_elfNN_get_section_contents _bfd_generic_get_section_contents
  40 #endif
  41
  42 #define bfd_elfNN_canonicalize_dynamic_symtab \
  43   _bfd_elf_canonicalize_dynamic_symtab
  44 #ifndef bfd_elfNN_get_synthetic_symtab
  45 #define bfd_elfNN_get_synthetic_symtab \
  46   _bfd_elf_get_synthetic_symtab
  47 #endif
  48 #ifndef bfd_elfNN_canonicalize_reloc
  49 #define bfd_elfNN_canonicalize_reloc    _bfd_elf_canonicalize_reloc
  50 #endif
  51 #ifndef bfd_elfNN_find_nearest_line
  52 #define bfd_elfNN_find_nearest_line     _bfd_elf_find_nearest_line
  53 #endif
  54 #ifndef bfd_elfNN_find_inliner_info
  55 #define bfd_elfNN_find_inliner_info     _bfd_elf_find_inliner_info
  56 #endif
  57 #define bfd_elfNN_read_minisymbols      _bfd_elf_read_minisymbols
  58 #define bfd_elfNN_minisymbol_to_symbol  _bfd_elf_minisymbol_to_symbol
  59 #define bfd_elfNN_get_dynamic_symtab_upper_bound \
  60   _bfd_elf_get_dynamic_symtab_upper_bound
  61 #define bfd_elfNN_get_lineno            _bfd_elf_get_lineno
  62 #ifndef bfd_elfNN_get_reloc_upper_bound
  63 #define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound
  64 #endif
  65 #ifndef bfd_elfNN_get_symbol_info
  66 #define bfd_elfNN_get_symbol_info       _bfd_elf_get_symbol_info
  67 #endif
  68 #define bfd_elfNN_canonicalize_symtab   _bfd_elf_canonicalize_symtab
  69 #define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound
  70 #define bfd_elfNN_make_empty_symbol     _bfd_elf_make_empty_symbol
  71 #ifndef bfd_elfNN_new_section_hook
  72 #define bfd_elfNN_new_section_hook      _bfd_elf_new_section_hook
  73 #endif
  74 #define bfd_elfNN_set_arch_mach         _bfd_elf_set_arch_mach
  75 #ifndef bfd_elfNN_set_section_contents
  76 #define bfd_elfNN_set_section_contents  _bfd_elf_set_section_contents
  77 #endif
  78 #define bfd_elfNN_sizeof_headers        _bfd_elf_sizeof_headers
  79 #define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents
  80 #define bfd_elfNN_write_corefile_contents _bfd_elf_write_corefile_contents
  81
  82 #define bfd_elfNN_get_section_contents_in_window \
  83   _bfd_generic_get_section_contents_in_window
  84
  85 #ifndef elf_backend_can_refcount
  86 #define elf_backend_can_refcount 0
  87 #endif
  88 #ifndef elf_backend_want_got_plt
  89 #define elf_backend_want_got_plt 0
  90 #endif
  91 #ifndef elf_backend_plt_readonly
  92 #define elf_backend_plt_readonly 0
  93 #endif
  94 #ifndef elf_backend_want_plt_sym
  95 #define elf_backend_want_plt_sym 0
  96 #endif
  97 #ifndef elf_backend_plt_not_loaded
  98 #define elf_backend_plt_not_loaded 0
  99 #endif
 100 #ifndef elf_backend_plt_alignment
 101 #define elf_backend_plt_alignment 2
 102 #endif
 103 #ifndef elf_backend_want_dynbss
 104 #define elf_backend_want_dynbss 1
 105 #endif
 106 #ifndef elf_backend_want_p_paddr_set_to_zero
 107 #define elf_backend_want_p_paddr_set_to_zero 0
 108 #endif
 109 #ifndef elf_backend_default_execstack
 110 #define elf_backend_default_execstack 1
 111 #endif
 112 #ifndef elf_backend_stack_align
 113 #define elf_backend_stack_align 16
 114 #endif
 115
 116 #define bfd_elfNN_bfd_debug_info_start  bfd_void
 117 #define bfd_elfNN_bfd_debug_info_end    bfd_void
 118 #define bfd_elfNN_bfd_debug_info_accumulate \
 119   ((void (*) (bfd*, struct bfd_section *)) bfd_void)
 120
 121 #ifndef bfd_elfNN_bfd_get_relocated_section_contents
 122 #define bfd_elfNN_bfd_get_relocated_section_contents \
 123   bfd_generic_get_relocated_section_contents
 124 #endif
 125
 126 #ifndef bfd_elfNN_bfd_relax_section
 127 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
 128 #endif
 129
 130 #ifndef elf_backend_can_gc_sections
 131 #define elf_backend_can_gc_sections 0
 132 #endif
 133 #ifndef elf_backend_can_refcount
 134 #define elf_backend_can_refcount 0
 135 #endif
 136 #ifndef elf_backend_want_got_sym
 137 #define elf_backend_want_got_sym 1
 138 #endif
 139 #ifndef elf_backend_gc_keep
 140 #define elf_backend_gc_keep             _bfd_elf_gc_keep
 141 #endif
 142 #ifndef elf_backend_gc_mark_dynamic_ref
 143 #define elf_backend_gc_mark_dynamic_ref bfd_elf_gc_mark_dynamic_ref_symbol
 144 #endif
 145 #ifndef elf_backend_gc_mark_hook
 146 #define elf_backend_gc_mark_hook        _bfd_elf_gc_mark_hook
 147 #endif
 148 #ifndef elf_backend_gc_mark_extra_sections
 149 #define elf_backend_gc_mark_extra_sections _bfd_elf_gc_mark_extra_sections
 150 #endif
 151 #ifndef elf_backend_gc_sweep_hook
 152 #define elf_backend_gc_sweep_hook       NULL
 153 #endif
 154 #ifndef bfd_elfNN_bfd_gc_sections
 155 #define bfd_elfNN_bfd_gc_sections bfd_elf_gc_sections
 156 #endif
 157
 158 #ifndef bfd_elfNN_bfd_merge_sections
 159 #define bfd_elfNN_bfd_merge_sections \
 160   _bfd_elf_merge_sections
 161 #endif
 162
 163 #ifndef bfd_elfNN_bfd_is_group_section
 164 #define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section
 165 #endif
 166
 167 #ifndef bfd_elfNN_bfd_discard_group
 168 #define bfd_elfNN_bfd_discard_group bfd_generic_discard_group
 169 #endif
 170
 171 #ifndef bfd_elfNN_section_already_linked
 172 #define bfd_elfNN_section_already_linked \
 173   _bfd_elf_section_already_linked
 174 #endif
 175
 176 #ifndef bfd_elfNN_bfd_define_common_symbol
 177 #define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol
 178 #endif
 179
 180 #ifndef bfd_elfNN_bfd_lookup_section_flags
 181 #define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags
 182 #endif
 183
 184 #ifndef bfd_elfNN_bfd_make_debug_symbol
 185 #define bfd_elfNN_bfd_make_debug_symbol \
 186   ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
 187 #endif
 188
 189 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
 190 #define bfd_elfNN_bfd_copy_private_symbol_data \
 191   _bfd_elf_copy_private_symbol_data
 192 #endif
 193
 194 #ifndef bfd_elfNN_bfd_copy_private_section_data
 195 #define bfd_elfNN_bfd_copy_private_section_data \
 196   _bfd_elf_copy_private_section_data
 197 #endif
 198 #ifndef bfd_elfNN_bfd_copy_private_header_data
 199 #define bfd_elfNN_bfd_copy_private_header_data \
 200   _bfd_elf_copy_private_header_data
 201 #endif
 202 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
 203 #define bfd_elfNN_bfd_copy_private_bfd_data \
 204   _bfd_elf_copy_private_bfd_data
 205 #endif
 206 #ifndef bfd_elfNN_bfd_print_private_bfd_data
 207 #define bfd_elfNN_bfd_print_private_bfd_data \
 208   _bfd_elf_print_private_bfd_data
 209 #endif
 210 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
 211 #define bfd_elfNN_bfd_merge_private_bfd_data \
 212   ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
 213 #endif
 214 #ifndef bfd_elfNN_bfd_set_private_flags
 215 #define bfd_elfNN_bfd_set_private_flags \
 216   ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
 217 #endif
 218 #ifndef bfd_elfNN_bfd_is_local_label_name
 219 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
 220 #endif
 221 #ifndef bfd_elfNN_bfd_is_target_special_symbol
 222 #define bfd_elfNN_bfd_is_target_special_symbol \
 223   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
 224 #endif
 225
 226 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
 227 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
 228   _bfd_elf_get_dynamic_reloc_upper_bound
 229 #endif
 230 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
 231 #define bfd_elfNN_canonicalize_dynamic_reloc \
 232   _bfd_elf_canonicalize_dynamic_reloc
 233 #endif
 234
 235 #ifdef elf_backend_relocate_section
 236 #ifndef bfd_elfNN_bfd_link_hash_table_create
 237 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
 238 #endif
 239 #ifndef bfd_elfNN_bfd_link_hash_table_free
 240 #define bfd_elfNN_bfd_link_hash_table_free _bfd_elf_link_hash_table_free
 241 #endif
 242 #ifndef bfd_elfNN_bfd_link_add_symbols
 243 #define bfd_elfNN_bfd_link_add_symbols  bfd_elf_link_add_symbols
 244 #endif
 245 #ifndef bfd_elfNN_bfd_final_link
 246 #define bfd_elfNN_bfd_final_link        bfd_elf_final_link
 247 #endif
 248 #else /* ! defined (elf_backend_relocate_section) */
 249 /* If no backend relocate_section routine, use the generic linker.
 250    Note - this will prevent the port from being able to use some of
 251    the other features of the ELF linker, because the generic hash structure
 252    does not have the fields needed by the ELF linker.  In particular it
 253    means that linking directly to S-records will not work.  */
 254 #ifndef bfd_elfNN_bfd_link_hash_table_create
 255 #define bfd_elfNN_bfd_link_hash_table_create \
 256   _bfd_generic_link_hash_table_create
 257 #endif
 258 #ifndef bfd_elfNN_bfd_link_hash_table_free
 259 #define bfd_elfNN_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
 260 #endif
 261 #ifndef bfd_elfNN_bfd_link_add_symbols
 262 #define bfd_elfNN_bfd_link_add_symbols  _bfd_generic_link_add_symbols
 263 #endif
 264 #ifndef bfd_elfNN_bfd_final_link
 265 #define bfd_elfNN_bfd_final_link        _bfd_generic_final_link
 266 #endif
 267 #endif /* ! defined (elf_backend_relocate_section) */
 268
 269 #ifndef bfd_elfNN_bfd_link_just_syms
 270 #define bfd_elfNN_bfd_link_just_syms    _bfd_elf_link_just_syms
 271 #endif
 272
 273 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
 274 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
 275   _bfd_elf_copy_link_hash_symbol_type
 276 #endif
 277
 278 #ifndef bfd_elfNN_bfd_link_split_section
 279 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
 280 #endif
 281
 282 #ifndef bfd_elfNN_archive_p
 283 #define bfd_elfNN_archive_p bfd_generic_archive_p
 284 #endif
 285
 286 #ifndef bfd_elfNN_write_archive_contents
 287 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
 288 #endif
 289
 290 #ifndef bfd_elfNN_mkobject
 291 #define bfd_elfNN_mkobject bfd_elf_make_object
 292 #endif
 293
 294 #ifndef bfd_elfNN_mkcorefile
 295 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
 296 #endif
 297
 298 #ifndef bfd_elfNN_mkarchive
 299 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
 300 #endif
 301
 302 #ifndef bfd_elfNN_print_symbol
 303 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
 304 #endif
 305
 306 #ifndef elf_symbol_leading_char
 307 #define elf_symbol_leading_char 0
 308 #endif
 309
 310 #ifndef elf_info_to_howto
 311 #define elf_info_to_howto 0
 312 #endif
 313
 314 #ifndef elf_info_to_howto_rel
 315 #define elf_info_to_howto_rel 0
 316 #endif
 317
 318 #ifndef elf_backend_arch_data
 319 #define elf_backend_arch_data NULL
 320 #endif
 321
 322 #ifndef ELF_TARGET_ID
 323 #define ELF_TARGET_ID   GENERIC_ELF_DATA
 324 #endif
 325
 326 #ifndef ELF_OSABI
 327 #define ELF_OSABI ELFOSABI_NONE
 328 #endif
 329
 330 #ifndef ELF_MAXPAGESIZE
 331 # error ELF_MAXPAGESIZE is not defined
 332 #define ELF_MAXPAGESIZE 1
 333 #endif
 334
 335 #ifndef ELF_COMMONPAGESIZE
 336 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
 337 #endif
 338
 339 #ifndef ELF_MINPAGESIZE
 340 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
 341 #endif
 342
 343 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
 344 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
 345 #endif
 346 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
 347 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
 348 #endif
 349
 350 #ifndef ELF_DYNAMIC_SEC_FLAGS
 351 /* Note that we set the SEC_IN_MEMORY flag for these sections.  */
 352 #define ELF_DYNAMIC_SEC_FLAGS                   \
 353   (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS      \
 354    | SEC_IN_MEMORY | SEC_LINKER_CREATED)
 355 #endif
 356
 357 #ifndef elf_backend_collect
 358 #define elf_backend_collect FALSE
 359 #endif
 360 #ifndef elf_backend_type_change_ok
 361 #define elf_backend_type_change_ok FALSE
 362 #endif
 363
 364 #ifndef elf_backend_sym_is_global
 365 #define elf_backend_sym_is_global       0
 366 #endif
 367 #ifndef elf_backend_object_p
 368 #define elf_backend_object_p            0
 369 #endif
 370 #ifndef elf_backend_symbol_processing
 371 #define elf_backend_symbol_processing   0
 372 #endif
 373 #ifndef elf_backend_symbol_table_processing
 374 #define elf_backend_symbol_table_processing     0
 375 #endif
 376 #ifndef elf_backend_get_symbol_type
 377 #define elf_backend_get_symbol_type 0
 378 #endif
 379 #ifndef elf_backend_archive_symbol_lookup
 380 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
 381 #endif
 382 #ifndef elf_backend_name_local_section_symbols
 383 #define elf_backend_name_local_section_symbols  0
 384 #endif
 385 #ifndef elf_backend_section_processing
 386 #define elf_backend_section_processing  0
 387 #endif
 388 #ifndef elf_backend_section_from_shdr
 389 #define elf_backend_section_from_shdr   _bfd_elf_make_section_from_shdr
 390 #endif
 391 #ifndef elf_backend_section_flags
 392 #define elf_backend_section_flags       0
 393 #endif
 394 #ifndef elf_backend_get_sec_type_attr
 395 #define elf_backend_get_sec_type_attr   _bfd_elf_get_sec_type_attr
 396 #endif
 397 #ifndef elf_backend_section_from_phdr
 398 #define elf_backend_section_from_phdr   _bfd_elf_make_section_from_phdr
 399 #endif
 400 #ifndef elf_backend_fake_sections
 401 #define elf_backend_fake_sections       0
 402 #endif
 403 #ifndef elf_backend_section_from_bfd_section
 404 #define elf_backend_section_from_bfd_section    0
 405 #endif
 406 #ifndef elf_backend_add_symbol_hook
 407 #define elf_backend_add_symbol_hook     0
 408 #endif
 409 #ifndef elf_backend_link_output_symbol_hook
 410 #define elf_backend_link_output_symbol_hook 0
 411 #endif
 412 #ifndef elf_backend_create_dynamic_sections
 413 #define elf_backend_create_dynamic_sections 0
 414 #endif
 415 #ifndef elf_backend_omit_section_dynsym
 416 #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym
 417 #endif
 418 #ifndef elf_backend_relocs_compatible
 419 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
 420 #endif
 421 #ifndef elf_backend_check_relocs
 422 #define elf_backend_check_relocs        0
 423 #endif
 424 #ifndef elf_backend_check_directives
 425 #define elf_backend_check_directives    0
 426 #endif
 427 #ifndef elf_backend_notice_as_needed
 428 #define elf_backend_notice_as_needed    _bfd_elf_notice_as_needed
 429 #endif
 430 #ifndef elf_backend_adjust_dynamic_symbol
 431 #define elf_backend_adjust_dynamic_symbol 0
 432 #endif
 433 #ifndef elf_backend_always_size_sections
 434 #define elf_backend_always_size_sections 0
 435 #endif
 436 #ifndef elf_backend_size_dynamic_sections
 437 #define elf_backend_size_dynamic_sections 0
 438 #endif
 439 #ifndef elf_backend_init_index_section
 440 #define elf_backend_init_index_section \
 441  ((void (*) (bfd *, struct bfd_link_info *)) bfd_void)
 442 #endif
 443 #ifndef elf_backend_relocate_section
 444 #define elf_backend_relocate_section    0
 445 #endif
 446 #ifndef elf_backend_finish_dynamic_symbol
 447 #define elf_backend_finish_dynamic_symbol       0
 448 #endif
 449 #ifndef elf_backend_finish_dynamic_sections
 450 #define elf_backend_finish_dynamic_sections     0
 451 #endif
 452 #ifndef elf_backend_begin_write_processing
 453 #define elf_backend_begin_write_processing      0
 454 #endif
 455 #ifndef elf_backend_final_write_processing
 456 #define elf_backend_final_write_processing      0
 457 #endif
 458 #ifndef elf_backend_additional_program_headers
 459 #define elf_backend_additional_program_headers  0
 460 #endif
 461 #ifndef elf_backend_modify_segment_map
 462 #define elf_backend_modify_segment_map  0
 463 #endif
 464 #ifndef elf_backend_modify_program_headers
 465 #define elf_backend_modify_program_headers      0
 466 #endif
 467 #ifndef elf_backend_ecoff_debug_swap
 468 #define elf_backend_ecoff_debug_swap    0
 469 #endif
 470 #ifndef elf_backend_bfd_from_remote_memory
 471 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
 472 #endif
 473 #ifndef elf_backend_got_header_size
 474 #define elf_backend_got_header_size     0
 475 #endif
 476 #ifndef elf_backend_got_elt_size
 477 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
 478 #endif
 479 #ifndef elf_backend_obj_attrs_vendor
 480 #define elf_backend_obj_attrs_vendor            NULL
 481 #endif
 482 #ifndef elf_backend_obj_attrs_section
 483 #define elf_backend_obj_attrs_section           NULL
 484 #endif
 485 #ifndef elf_backend_obj_attrs_arg_type
 486 #define elf_backend_obj_attrs_arg_type          NULL
 487 #endif
 488 #ifndef elf_backend_obj_attrs_section_type
 489 #define elf_backend_obj_attrs_section_type              SHT_GNU_ATTRIBUTES
 490 #endif
 491 #ifndef elf_backend_obj_attrs_order
 492 #define elf_backend_obj_attrs_order             NULL
 493 #endif
 494 #ifndef elf_backend_obj_attrs_handle_unknown
 495 #define elf_backend_obj_attrs_handle_unknown    NULL
 496 #endif
 497 #ifndef elf_backend_static_tls_alignment
 498 #define elf_backend_static_tls_alignment        1
 499 #endif
 500 #ifndef elf_backend_post_process_headers
 501 #define elf_backend_post_process_headers        NULL
 502 #endif
 503 #ifndef elf_backend_print_symbol_all
 504 #define elf_backend_print_symbol_all            NULL
 505 #endif
 506 #ifndef elf_backend_output_arch_local_syms
 507 #define elf_backend_output_arch_local_syms      NULL
 508 #endif
 509 #ifndef elf_backend_output_arch_syms
 510 #define elf_backend_output_arch_syms            NULL
 511 #endif
 512 #ifndef elf_backend_copy_indirect_symbol
 513 #define elf_backend_copy_indirect_symbol  _bfd_elf_link_hash_copy_indirect
 514 #endif
 515 #ifndef elf_backend_hide_symbol
 516 #define elf_backend_hide_symbol         _bfd_elf_link_hash_hide_symbol
 517 #endif
 518 #ifndef elf_backend_fixup_symbol
 519 #define elf_backend_fixup_symbol                NULL
 520 #endif
 521 #ifndef elf_backend_merge_symbol_attribute
 522 #define elf_backend_merge_symbol_attribute      NULL
 523 #endif
 524 #ifndef elf_backend_get_target_dtag
 525 #define elf_backend_get_target_dtag             NULL
 526 #endif
 527 #ifndef elf_backend_ignore_undef_symbol
 528 #define elf_backend_ignore_undef_symbol         NULL
 529 #endif
 530 #ifndef elf_backend_emit_relocs
 531 #define elf_backend_emit_relocs                 _bfd_elf_link_output_relocs
 532 #endif
 533 #ifndef elf_backend_count_relocs
 534 #define elf_backend_count_relocs                NULL
 535 #endif
 536 #ifndef elf_backend_grok_prstatus
 537 #define elf_backend_grok_prstatus               NULL
 538 #endif
 539 #ifndef elf_backend_grok_psinfo
 540 #define elf_backend_grok_psinfo                 NULL
 541 #endif
 542 #ifndef elf_backend_write_core_note
 543 #define elf_backend_write_core_note             NULL
 544 #endif
 545 #ifndef elf_backend_lookup_section_flags_hook
 546 #define elf_backend_lookup_section_flags_hook   NULL
 547 #endif
 548 #ifndef elf_backend_reloc_type_class
 549 #define elf_backend_reloc_type_class            _bfd_elf_reloc_type_class
 550 #endif
 551 #ifndef elf_backend_discard_info
 552 #define elf_backend_discard_info                NULL
 553 #endif
 554 #ifndef elf_backend_ignore_discarded_relocs
 555 #define elf_backend_ignore_discarded_relocs     NULL
 556 #endif
 557 #ifndef elf_backend_action_discarded
 558 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
 559 #endif
 560 #ifndef elf_backend_eh_frame_address_size
 561 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
 562 #endif
 563 #ifndef elf_backend_can_make_relative_eh_frame
 564 #define elf_backend_can_make_relative_eh_frame  _bfd_elf_can_make_relative
 565 #endif
 566 #ifndef elf_backend_can_make_lsda_relative_eh_frame
 567 #define elf_backend_can_make_lsda_relative_eh_frame     _bfd_elf_can_make_relative
 568 #endif
 569 #ifndef elf_backend_encode_eh_address
 570 #define elf_backend_encode_eh_address           _bfd_elf_encode_eh_address
 571 #endif
 572 #ifndef elf_backend_write_section
 573 #define elf_backend_write_section               NULL
 574 #endif
 575 #ifndef elf_backend_mips_irix_compat
 576 #define elf_backend_mips_irix_compat            NULL
 577 #endif
 578 #ifndef elf_backend_mips_rtype_to_howto
 579 #define elf_backend_mips_rtype_to_howto         NULL
 580 #endif
 581
 582 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
 583    sections, but not both.  They defined USE_REL to indicate SHT_REL
 584    sections, and left it undefined to indicated SHT_RELA sections.
 585    For backwards compatibility, we still support this usage.  */
 586 #ifndef USE_REL
 587 #define USE_REL 0
 588 #endif
 589
 590 /* Use these in new code.  */
 591 #ifndef elf_backend_may_use_rel_p
 592 #define elf_backend_may_use_rel_p USE_REL
 593 #endif
 594 #ifndef elf_backend_may_use_rela_p
 595 #define elf_backend_may_use_rela_p !USE_REL
 596 #endif
 597 #ifndef elf_backend_default_use_rela_p
 598 #define elf_backend_default_use_rela_p !USE_REL
 599 #endif
 600 #ifndef elf_backend_rela_plts_and_copies_p
 601 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
 602 #endif
 603
 604 #ifndef elf_backend_rela_normal
 605 #define elf_backend_rela_normal 0
 606 #endif
 607
 608 #ifndef elf_backend_plt_sym_val
 609 #define elf_backend_plt_sym_val NULL
 610 #endif
 611 #ifndef elf_backend_relplt_name
 612 #define elf_backend_relplt_name NULL
 613 #endif
 614
 615 #ifndef ELF_MACHINE_ALT1
 616 #define ELF_MACHINE_ALT1 0
 617 #endif
 618
 619 #ifndef ELF_MACHINE_ALT2
 620 #define ELF_MACHINE_ALT2 0
 621 #endif
 622
 623 #ifndef elf_backend_size_info
 624 #define elf_backend_size_info _bfd_elfNN_size_info
 625 #endif
 626
 627 #ifndef elf_backend_special_sections
 628 #define elf_backend_special_sections NULL
 629 #endif
 630
 631 #ifndef elf_backend_sign_extend_vma
 632 #define elf_backend_sign_extend_vma 0
 633 #endif
 634
 635 #ifndef elf_backend_link_order_error_handler
 636 #define elf_backend_link_order_error_handler _bfd_default_error_handler
 637 #endif
 638
 639 #ifndef elf_backend_common_definition
 640 #define elf_backend_common_definition _bfd_elf_common_definition
 641 #endif
 642
 643 #ifndef elf_backend_common_section_index
 644 #define elf_backend_common_section_index _bfd_elf_common_section_index
 645 #endif
 646
 647 #ifndef elf_backend_common_section
 648 #define elf_backend_common_section _bfd_elf_common_section
 649 #endif
 650
 651 #ifndef elf_backend_merge_symbol
 652 #define elf_backend_merge_symbol NULL
 653 #endif
 654
 655 #ifndef elf_backend_hash_symbol
 656 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
 657 #endif
 658
 659 #ifndef elf_backend_is_function_type
 660 #define elf_backend_is_function_type _bfd_elf_is_function_type
 661 #endif
 662
 663 #ifndef elf_backend_maybe_function_sym
 664 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
 665 #endif
 666
 667 #ifndef elf_match_priority
 668 #define elf_match_priority \
 669   (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
 670 #endif
 671
 672 extern const struct elf_size_info _bfd_elfNN_size_info;
 673
 674 static struct elf_backend_data elfNN_bed =
 675 {
 676   ELF_ARCH,                     /* arch */
 677   ELF_TARGET_ID,                /* target_id */
 678   ELF_MACHINE_CODE,             /* elf_machine_code */
 679   ELF_OSABI,                    /* elf_osabi  */
 680   ELF_MAXPAGESIZE,              /* maxpagesize */
 681   ELF_MINPAGESIZE,              /* minpagesize */
 682   ELF_COMMONPAGESIZE,           /* commonpagesize */
 683   ELF_DYNAMIC_SEC_FLAGS,        /* dynamic_sec_flags */
 684   elf_backend_arch_data,
 685   elf_info_to_howto,
 686   elf_info_to_howto_rel,
 687   elf_backend_sym_is_global,
 688   elf_backend_object_p,
 689   elf_backend_symbol_processing,
 690   elf_backend_symbol_table_processing,
 691   elf_backend_get_symbol_type,
 692   elf_backend_archive_symbol_lookup,
 693   elf_backend_name_local_section_symbols,
 694   elf_backend_section_processing,
 695   elf_backend_section_from_shdr,
 696   elf_backend_section_flags,
 697   elf_backend_get_sec_type_attr,
 698   elf_backend_section_from_phdr,
 699   elf_backend_fake_sections,
 700   elf_backend_section_from_bfd_section,
 701   elf_backend_add_symbol_hook,
 702   elf_backend_link_output_symbol_hook,
 703   elf_backend_create_dynamic_sections,
 704   elf_backend_omit_section_dynsym,
 705   elf_backend_relocs_compatible,
 706   elf_backend_check_relocs,
 707   elf_backend_check_directives,
 708   elf_backend_notice_as_needed,
 709   elf_backend_adjust_dynamic_symbol,
 710   elf_backend_always_size_sections,
 711   elf_backend_size_dynamic_sections,
 712   elf_backend_init_index_section,
 713   elf_backend_relocate_section,
 714   elf_backend_finish_dynamic_symbol,
 715   elf_backend_finish_dynamic_sections,
 716   elf_backend_begin_write_processing,
 717   elf_backend_final_write_processing,
 718   elf_backend_additional_program_headers,
 719   elf_backend_modify_segment_map,
 720   elf_backend_modify_program_headers,
 721   elf_backend_gc_keep,
 722   elf_backend_gc_mark_dynamic_ref,
 723   elf_backend_gc_mark_hook,
 724   elf_backend_gc_mark_extra_sections,
 725   elf_backend_gc_sweep_hook,
 726   elf_backend_post_process_headers,
 727   elf_backend_print_symbol_all,
 728   elf_backend_output_arch_local_syms,
 729   elf_backend_output_arch_syms,
 730   elf_backend_copy_indirect_symbol,
 731   elf_backend_hide_symbol,
 732   elf_backend_fixup_symbol,
 733   elf_backend_merge_symbol_attribute,
 734   elf_backend_get_target_dtag,
 735   elf_backend_ignore_undef_symbol,
 736   elf_backend_emit_relocs,
 737   elf_backend_count_relocs,
 738   elf_backend_grok_prstatus,
 739   elf_backend_grok_psinfo,
 740   elf_backend_write_core_note,
 741   elf_backend_lookup_section_flags_hook,
 742   elf_backend_reloc_type_class,
 743   elf_backend_discard_info,
 744   elf_backend_ignore_discarded_relocs,
 745   elf_backend_action_discarded,
 746   elf_backend_eh_frame_address_size,
 747   elf_backend_can_make_relative_eh_frame,
 748   elf_backend_can_make_lsda_relative_eh_frame,
 749   elf_backend_encode_eh_address,
 750   elf_backend_write_section,
 751   elf_backend_mips_irix_compat,
 752   elf_backend_mips_rtype_to_howto,
 753   elf_backend_ecoff_debug_swap,
 754   elf_backend_bfd_from_remote_memory,
 755   elf_backend_plt_sym_val,
 756   elf_backend_common_definition,
 757   elf_backend_common_section_index,
 758   elf_backend_common_section,
 759   elf_backend_merge_symbol,
 760   elf_backend_hash_symbol,
 761   elf_backend_is_function_type,
 762   elf_backend_maybe_function_sym,
 763   elf_backend_link_order_error_handler,
 764   elf_backend_relplt_name,
 765   ELF_MACHINE_ALT1,
 766   ELF_MACHINE_ALT2,
 767   &elf_backend_size_info,
 768   elf_backend_special_sections,
 769   elf_backend_got_header_size,
 770   elf_backend_got_elt_size,
 771   elf_backend_obj_attrs_vendor,
 772   elf_backend_obj_attrs_section,
 773   elf_backend_obj_attrs_arg_type,
 774   elf_backend_obj_attrs_section_type,
 775   elf_backend_obj_attrs_order,
 776   elf_backend_obj_attrs_handle_unknown,
 777   elf_backend_static_tls_alignment,
 778   elf_backend_stack_align,
 779   elf_backend_collect,
 780   elf_backend_type_change_ok,
 781   elf_backend_may_use_rel_p,
 782   elf_backend_may_use_rela_p,
 783   elf_backend_default_use_rela_p,
 784   elf_backend_rela_plts_and_copies_p,
 785   elf_backend_rela_normal,
 786   elf_backend_sign_extend_vma,
 787   elf_backend_want_got_plt,
 788   elf_backend_plt_readonly,
 789   elf_backend_want_plt_sym,
 790   elf_backend_plt_not_loaded,
 791   elf_backend_plt_alignment,
 792   elf_backend_can_gc_sections,
 793   elf_backend_can_refcount,
 794   elf_backend_want_got_sym,
 795   elf_backend_want_dynbss,
 796   elf_backend_want_p_paddr_set_to_zero,
 797   elf_backend_default_execstack
 798 };
 799
 800 /* Forward declaration for use when initialising alternative_target field.  */
 801 #ifdef TARGET_LITTLE_SYM
 802 extern const bfd_target TARGET_LITTLE_SYM;
 803 #endif
 804
 805 #ifdef TARGET_BIG_SYM
 806 const bfd_target TARGET_BIG_SYM =
 807 {
 808   /* name: identify kind of target */
 809   TARGET_BIG_NAME,
 810
 811   /* flavour: general indication about file */
 812   bfd_target_elf_flavour,
 813
 814   /* byteorder: data is big endian */
 815   BFD_ENDIAN_BIG,
 816
 817   /* header_byteorder: header is also big endian */
 818   BFD_ENDIAN_BIG,
 819
 820   /* object_flags: mask of all file flags */
 821   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
 822    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS),
 823
 824   /* section_flags: mask of all section flags */
 825   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
 826    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
 827    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
 828
 829    /* leading_symbol_char: is the first char of a user symbol
 830       predictable, and if so what is it */
 831   elf_symbol_leading_char,
 832
 833   /* ar_pad_char: pad character for filenames within an archive header
 834      FIXME:  this really has nothing to do with ELF, this is a characteristic
 835      of the archiver and/or os and should be independently tunable */
 836   '/',
 837
 838   /* ar_max_namelen: maximum number of characters in an archive header
 839      FIXME:  this really has nothing to do with ELF, this is a characteristic
 840      of the archiver and should be independently tunable.  The System V ABI,
 841      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
 842   15,
 843
 844   elf_match_priority,
 845
 846   /* Routines to byte-swap various sized integers from the data sections */
 847   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 848     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 849     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 850
 851   /* Routines to byte-swap various sized integers from the file headers */
 852   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
 853     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
 854     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
 855
 856   /* bfd_check_format: check the format of a file being read */
 857   { _bfd_dummy_target,          /* unknown format */
 858     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
 859     bfd_elfNN_archive_p,        /* an archive */
 860     bfd_elfNN_core_file_p       /* a core file */
 861   },
 862
 863   /* bfd_set_format: set the format of a file being written */
 864   { bfd_false,
 865     bfd_elfNN_mkobject,
 866     bfd_elfNN_mkarchive,
 867     bfd_elfNN_mkcorefile
 868   },
 869
 870   /* bfd_write_contents: write cached information into a file being written */
 871   { bfd_false,
 872     bfd_elfNN_write_object_contents,
 873     bfd_elfNN_write_archive_contents,
 874     bfd_elfNN_write_corefile_contents,
 875   },
 876
 877   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
 878   BFD_JUMP_TABLE_COPY (bfd_elfNN),
 879   BFD_JUMP_TABLE_CORE (bfd_elfNN),
 880 #ifdef bfd_elfNN_archive_functions
 881   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
 882 #else
 883   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 884 #endif
 885   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
 886   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
 887   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
 888   BFD_JUMP_TABLE_LINK (bfd_elfNN),
 889   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
 890
 891   /* Alternative endian target.  */
 892 #ifdef TARGET_LITTLE_SYM
 893   & TARGET_LITTLE_SYM,
 894 #else
 895   NULL,
 896 #endif
 897
 898   /* backend_data: */
 899   &elfNN_bed
 900 };
 901 #endif
 902
 903 #ifdef TARGET_LITTLE_SYM
 904 const bfd_target TARGET_LITTLE_SYM =
 905 {
 906   /* name: identify kind of target */
 907   TARGET_LITTLE_NAME,
 908
 909   /* flavour: general indication about file */
 910   bfd_target_elf_flavour,
 911
 912   /* byteorder: data is little endian */
 913   BFD_ENDIAN_LITTLE,
 914
 915   /* header_byteorder: header is also little endian */
 916   BFD_ENDIAN_LITTLE,
 917
 918   /* object_flags: mask of all file flags */
 919   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
 920    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS),
 921
 922   /* section_flags: mask of all section flags */
 923   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
 924    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
 925    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
 926
 927    /* leading_symbol_char: is the first char of a user symbol
 928       predictable, and if so what is it */
 929   elf_symbol_leading_char,
 930
 931   /* ar_pad_char: pad character for filenames within an archive header
 932      FIXME:  this really has nothing to do with ELF, this is a characteristic
 933      of the archiver and/or os and should be independently tunable */
 934   '/',
 935
 936   /* ar_max_namelen: maximum number of characters in an archive header
 937      FIXME:  this really has nothing to do with ELF, this is a characteristic
 938      of the archiver and should be independently tunable.  The System V ABI,
 939      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
 940   15,
 941
 942   elf_match_priority,
 943
 944   /* Routines to byte-swap various sized integers from the data sections */
 945   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 946     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 947     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 948
 949   /* Routines to byte-swap various sized integers from the file headers */
 950   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 951     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 952     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
 953
 954   /* bfd_check_format: check the format of a file being read */
 955   { _bfd_dummy_target,          /* unknown format */
 956     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
 957     bfd_elfNN_archive_p,        /* an archive */
 958     bfd_elfNN_core_file_p       /* a core file */
 959   },
 960
 961   /* bfd_set_format: set the format of a file being written */
 962   { bfd_false,
 963     bfd_elfNN_mkobject,
 964     bfd_elfNN_mkarchive,
 965     bfd_elfNN_mkcorefile
 966   },
 967
 968   /* bfd_write_contents: write cached information into a file being written */
 969   { bfd_false,
 970     bfd_elfNN_write_object_contents,
 971     bfd_elfNN_write_archive_contents,
 972     bfd_elfNN_write_corefile_contents,
 973   },
 974
 975   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
 976   BFD_JUMP_TABLE_COPY (bfd_elfNN),
 977   BFD_JUMP_TABLE_CORE (bfd_elfNN),
 978 #ifdef bfd_elfNN_archive_functions
 979   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
 980 #else
 981   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 982 #endif
 983   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
 984   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
 985   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
 986   BFD_JUMP_TABLE_LINK (bfd_elfNN),
 987   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
 988
 989   /* Alternative endian target.  */
 990 #ifdef TARGET_BIG_SYM
 991   & TARGET_BIG_SYM,
 992 #else
 993   NULL,
 994 #endif
 995
 996   /* backend_data: */
 997   &elfNN_bed
 998 };
 999 #endif