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