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 994