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