1 /* Target definitions for NN-bit ELF 2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 3 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 4 Free Software Foundation, Inc. 5 6 This file is part of BFD, the Binary File Descriptor library. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 21 MA 02110-1301, USA. */ 22 23 24 /* This structure contains everything that BFD knows about a target. 25 It includes things like its byte order, name, what routines to call 26 to do various operations, etc. Every BFD points to a target structure 27 with its "xvec" member. 28 29 There are two such structures here: one for big-endian machines and 30 one for little-endian machines. */ 31 32 #ifndef bfd_elfNN_close_and_cleanup 33 #define bfd_elfNN_close_and_cleanup _bfd_elf_close_and_cleanup 34 #endif 35 #ifndef bfd_elfNN_bfd_free_cached_info 36 #define bfd_elfNN_bfd_free_cached_info _bfd_free_cached_info 37 #endif 38 #ifndef bfd_elfNN_get_section_contents 39 #define bfd_elfNN_get_section_contents _bfd_generic_get_section_contents 40 #endif 41 42 #define bfd_elfNN_canonicalize_dynamic_symtab \ 43 _bfd_elf_canonicalize_dynamic_symtab 44 #ifndef bfd_elfNN_get_synthetic_symtab 45 #define bfd_elfNN_get_synthetic_symtab \ 46 _bfd_elf_get_synthetic_symtab 47 #endif 48 #ifndef bfd_elfNN_canonicalize_reloc 49 #define bfd_elfNN_canonicalize_reloc _bfd_elf_canonicalize_reloc 50 #endif 51 #ifndef bfd_elfNN_find_nearest_line 52 #define bfd_elfNN_find_nearest_line _bfd_elf_find_nearest_line 53 #endif 54 #ifndef bfd_elfNN_find_inliner_info 55 #define bfd_elfNN_find_inliner_info _bfd_elf_find_inliner_info 56 #endif 57 #define bfd_elfNN_read_minisymbols _bfd_elf_read_minisymbols 58 #define bfd_elfNN_minisymbol_to_symbol _bfd_elf_minisymbol_to_symbol 59 #define bfd_elfNN_get_dynamic_symtab_upper_bound \ 60 _bfd_elf_get_dynamic_symtab_upper_bound 61 #define bfd_elfNN_get_lineno _bfd_elf_get_lineno 62 #ifndef bfd_elfNN_get_reloc_upper_bound 63 #define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound 64 #endif 65 #ifndef bfd_elfNN_get_symbol_info 66 #define bfd_elfNN_get_symbol_info _bfd_elf_get_symbol_info 67 #endif 68 #define bfd_elfNN_canonicalize_symtab _bfd_elf_canonicalize_symtab 69 #define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound 70 #define bfd_elfNN_make_empty_symbol _bfd_elf_make_empty_symbol 71 #ifndef bfd_elfNN_new_section_hook 72 #define bfd_elfNN_new_section_hook _bfd_elf_new_section_hook 73 #endif 74 #define bfd_elfNN_set_arch_mach _bfd_elf_set_arch_mach 75 #ifndef bfd_elfNN_set_section_contents 76 #define bfd_elfNN_set_section_contents _bfd_elf_set_section_contents 77 #endif 78 #define bfd_elfNN_sizeof_headers _bfd_elf_sizeof_headers 79 #define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents 80 #define bfd_elfNN_write_corefile_contents _bfd_elf_write_corefile_contents 81 82 #define bfd_elfNN_get_section_contents_in_window \ 83 _bfd_generic_get_section_contents_in_window 84 85 #ifndef elf_backend_can_refcount 86 #define elf_backend_can_refcount 0 87 #endif 88 #ifndef elf_backend_want_got_plt 89 #define elf_backend_want_got_plt 0 90 #endif 91 #ifndef elf_backend_plt_readonly 92 #define elf_backend_plt_readonly 0 93 #endif 94 #ifndef elf_backend_want_plt_sym 95 #define elf_backend_want_plt_sym 0 96 #endif 97 #ifndef elf_backend_plt_not_loaded 98 #define elf_backend_plt_not_loaded 0 99 #endif 100 #ifndef elf_backend_plt_alignment 101 #define elf_backend_plt_alignment 2 102 #endif 103 #ifndef elf_backend_want_dynbss 104 #define elf_backend_want_dynbss 1 105 #endif 106 #ifndef elf_backend_want_p_paddr_set_to_zero 107 #define elf_backend_want_p_paddr_set_to_zero 0 108 #endif 109 #ifndef elf_backend_default_execstack 110 #define elf_backend_default_execstack 1 111 #endif 112 #ifndef elf_backend_stack_align 113 #define elf_backend_stack_align 16 114 #endif 115 116 #define bfd_elfNN_bfd_debug_info_start bfd_void 117 #define bfd_elfNN_bfd_debug_info_end bfd_void 118 #define bfd_elfNN_bfd_debug_info_accumulate \ 119 ((void (*) (bfd*, struct bfd_section *)) bfd_void) 120 121 #ifndef bfd_elfNN_bfd_get_relocated_section_contents 122 #define bfd_elfNN_bfd_get_relocated_section_contents \ 123 bfd_generic_get_relocated_section_contents 124 #endif 125 126 #ifndef bfd_elfNN_bfd_relax_section 127 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section 128 #endif 129 130 #ifndef elf_backend_can_gc_sections 131 #define elf_backend_can_gc_sections 0 132 #endif 133 #ifndef elf_backend_can_refcount 134 #define elf_backend_can_refcount 0 135 #endif 136 #ifndef elf_backend_want_got_sym 137 #define elf_backend_want_got_sym 1 138 #endif 139 #ifndef elf_backend_gc_keep 140 #define elf_backend_gc_keep _bfd_elf_gc_keep 141 #endif 142 #ifndef elf_backend_gc_mark_dynamic_ref 143 #define elf_backend_gc_mark_dynamic_ref bfd_elf_gc_mark_dynamic_ref_symbol 144 #endif 145 #ifndef elf_backend_gc_mark_hook 146 #define elf_backend_gc_mark_hook _bfd_elf_gc_mark_hook 147 #endif 148 #ifndef elf_backend_gc_mark_extra_sections 149 #define elf_backend_gc_mark_extra_sections _bfd_elf_gc_mark_extra_sections 150 #endif 151 #ifndef elf_backend_gc_sweep_hook 152 #define elf_backend_gc_sweep_hook NULL 153 #endif 154 #ifndef bfd_elfNN_bfd_gc_sections 155 #define bfd_elfNN_bfd_gc_sections bfd_elf_gc_sections 156 #endif 157 158 #ifndef bfd_elfNN_bfd_merge_sections 159 #define bfd_elfNN_bfd_merge_sections \ 160 _bfd_elf_merge_sections 161 #endif 162 163 #ifndef bfd_elfNN_bfd_is_group_section 164 #define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section 165 #endif 166 167 #ifndef bfd_elfNN_bfd_discard_group 168 #define bfd_elfNN_bfd_discard_group bfd_generic_discard_group 169 #endif 170 171 #ifndef bfd_elfNN_section_already_linked 172 #define bfd_elfNN_section_already_linked \ 173 _bfd_elf_section_already_linked 174 #endif 175 176 #ifndef bfd_elfNN_bfd_define_common_symbol 177 #define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol 178 #endif 179 180 #ifndef bfd_elfNN_bfd_lookup_section_flags 181 #define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags 182 #endif 183 184 #ifndef bfd_elfNN_bfd_make_debug_symbol 185 #define bfd_elfNN_bfd_make_debug_symbol \ 186 ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr) 187 #endif 188 189 #ifndef bfd_elfNN_bfd_copy_private_symbol_data 190 #define bfd_elfNN_bfd_copy_private_symbol_data \ 191 _bfd_elf_copy_private_symbol_data 192 #endif 193 194 #ifndef bfd_elfNN_bfd_copy_private_section_data 195 #define bfd_elfNN_bfd_copy_private_section_data \ 196 _bfd_elf_copy_private_section_data 197 #endif 198 #ifndef bfd_elfNN_bfd_copy_private_header_data 199 #define bfd_elfNN_bfd_copy_private_header_data \ 200 _bfd_elf_copy_private_header_data 201 #endif 202 #ifndef bfd_elfNN_bfd_copy_private_bfd_data 203 #define bfd_elfNN_bfd_copy_private_bfd_data \ 204 _bfd_elf_copy_private_bfd_data 205 #endif 206 #ifndef bfd_elfNN_bfd_print_private_bfd_data 207 #define bfd_elfNN_bfd_print_private_bfd_data \ 208 _bfd_elf_print_private_bfd_data 209 #endif 210 #ifndef bfd_elfNN_bfd_merge_private_bfd_data 211 #define bfd_elfNN_bfd_merge_private_bfd_data \ 212 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 213 #endif 214 #ifndef bfd_elfNN_bfd_set_private_flags 215 #define bfd_elfNN_bfd_set_private_flags \ 216 ((bfd_boolean (*) (bfd *, flagword)) bfd_true) 217 #endif 218 #ifndef bfd_elfNN_bfd_is_local_label_name 219 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name 220 #endif 221 #ifndef bfd_elfNN_bfd_is_target_special_symbol 222 #define bfd_elfNN_bfd_is_target_special_symbol \ 223 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 224 #endif 225 226 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound 227 #define bfd_elfNN_get_dynamic_reloc_upper_bound \ 228 _bfd_elf_get_dynamic_reloc_upper_bound 229 #endif 230 #ifndef bfd_elfNN_canonicalize_dynamic_reloc 231 #define bfd_elfNN_canonicalize_dynamic_reloc \ 232 _bfd_elf_canonicalize_dynamic_reloc 233 #endif 234 235 #ifdef elf_backend_relocate_section 236 #ifndef bfd_elfNN_bfd_link_hash_table_create 237 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create 238 #endif 239 #ifndef bfd_elfNN_bfd_link_hash_table_free 240 #define bfd_elfNN_bfd_link_hash_table_free _bfd_elf_link_hash_table_free 241 #endif 242 #ifndef bfd_elfNN_bfd_link_add_symbols 243 #define bfd_elfNN_bfd_link_add_symbols bfd_elf_link_add_symbols 244 #endif 245 #ifndef bfd_elfNN_bfd_final_link 246 #define bfd_elfNN_bfd_final_link bfd_elf_final_link 247 #endif 248 #else /* ! defined (elf_backend_relocate_section) */ 249 /* If no backend relocate_section routine, use the generic linker. 250 Note - this will prevent the port from being able to use some of 251 the other features of the ELF linker, because the generic hash structure 252 does not have the fields needed by the ELF linker. In particular it 253 means that linking directly to S-records will not work. */ 254 #ifndef bfd_elfNN_bfd_link_hash_table_create 255 #define bfd_elfNN_bfd_link_hash_table_create \ 256 _bfd_generic_link_hash_table_create 257 #endif 258 #ifndef bfd_elfNN_bfd_link_hash_table_free 259 #define bfd_elfNN_bfd_link_hash_table_free _bfd_generic_link_hash_table_free 260 #endif 261 #ifndef bfd_elfNN_bfd_link_add_symbols 262 #define bfd_elfNN_bfd_link_add_symbols _bfd_generic_link_add_symbols 263 #endif 264 #ifndef bfd_elfNN_bfd_final_link 265 #define bfd_elfNN_bfd_final_link _bfd_generic_final_link 266 #endif 267 #endif /* ! defined (elf_backend_relocate_section) */ 268 269 #ifndef bfd_elfNN_bfd_link_just_syms 270 #define bfd_elfNN_bfd_link_just_syms _bfd_elf_link_just_syms 271 #endif 272 273 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type 274 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \ 275 _bfd_elf_copy_link_hash_symbol_type 276 #endif 277 278 #ifndef bfd_elfNN_bfd_link_split_section 279 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section 280 #endif 281 282 #ifndef bfd_elfNN_archive_p 283 #define bfd_elfNN_archive_p bfd_generic_archive_p 284 #endif 285 286 #ifndef bfd_elfNN_write_archive_contents 287 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents 288 #endif 289 290 #ifndef bfd_elfNN_mkobject 291 #define bfd_elfNN_mkobject bfd_elf_make_object 292 #endif 293 294 #ifndef bfd_elfNN_mkcorefile 295 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile 296 #endif 297 298 #ifndef bfd_elfNN_mkarchive 299 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive 300 #endif 301 302 #ifndef bfd_elfNN_print_symbol 303 #define bfd_elfNN_print_symbol bfd_elf_print_symbol 304 #endif 305 306 #ifndef elf_symbol_leading_char 307 #define elf_symbol_leading_char 0 308 #endif 309 310 #ifndef elf_info_to_howto 311 #define elf_info_to_howto 0 312 #endif 313 314 #ifndef elf_info_to_howto_rel 315 #define elf_info_to_howto_rel 0 316 #endif 317 318 #ifndef elf_backend_arch_data 319 #define elf_backend_arch_data NULL 320 #endif 321 322 #ifndef ELF_TARGET_ID 323 #define ELF_TARGET_ID GENERIC_ELF_DATA 324 #endif 325 326 #ifndef ELF_OSABI 327 #define ELF_OSABI ELFOSABI_NONE 328 #endif 329 330 #ifndef ELF_MAXPAGESIZE 331 # error ELF_MAXPAGESIZE is not defined 332 #define ELF_MAXPAGESIZE 1 333 #endif 334 335 #ifndef ELF_COMMONPAGESIZE 336 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE 337 #endif 338 339 #ifndef ELF_MINPAGESIZE 340 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE 341 #endif 342 343 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE 344 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE 345 #endif 346 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE 347 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE 348 #endif 349 350 #ifndef ELF_DYNAMIC_SEC_FLAGS 351 /* Note that we set the SEC_IN_MEMORY flag for these sections. */ 352 #define ELF_DYNAMIC_SEC_FLAGS \ 353 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS \ 354 | SEC_IN_MEMORY | SEC_LINKER_CREATED) 355 #endif 356 357 #ifndef elf_backend_collect 358 #define elf_backend_collect FALSE 359 #endif 360 #ifndef elf_backend_type_change_ok 361 #define elf_backend_type_change_ok FALSE 362 #endif 363 364 #ifndef elf_backend_sym_is_global 365 #define elf_backend_sym_is_global 0 366 #endif 367 #ifndef elf_backend_object_p 368 #define elf_backend_object_p 0 369 #endif 370 #ifndef elf_backend_symbol_processing 371 #define elf_backend_symbol_processing 0 372 #endif 373 #ifndef elf_backend_symbol_table_processing 374 #define elf_backend_symbol_table_processing 0 375 #endif 376 #ifndef elf_backend_get_symbol_type 377 #define elf_backend_get_symbol_type 0 378 #endif 379 #ifndef elf_backend_archive_symbol_lookup 380 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup 381 #endif 382 #ifndef elf_backend_name_local_section_symbols 383 #define elf_backend_name_local_section_symbols 0 384 #endif 385 #ifndef elf_backend_section_processing 386 #define elf_backend_section_processing 0 387 #endif 388 #ifndef elf_backend_section_from_shdr 389 #define elf_backend_section_from_shdr _bfd_elf_make_section_from_shdr 390 #endif 391 #ifndef elf_backend_section_flags 392 #define elf_backend_section_flags 0 393 #endif 394 #ifndef elf_backend_get_sec_type_attr 395 #define elf_backend_get_sec_type_attr _bfd_elf_get_sec_type_attr 396 #endif 397 #ifndef elf_backend_section_from_phdr 398 #define elf_backend_section_from_phdr _bfd_elf_make_section_from_phdr 399 #endif 400 #ifndef elf_backend_fake_sections 401 #define elf_backend_fake_sections 0 402 #endif 403 #ifndef elf_backend_section_from_bfd_section 404 #define elf_backend_section_from_bfd_section 0 405 #endif 406 #ifndef elf_backend_add_symbol_hook 407 #define elf_backend_add_symbol_hook 0 408 #endif 409 #ifndef elf_backend_link_output_symbol_hook 410 #define elf_backend_link_output_symbol_hook 0 411 #endif 412 #ifndef elf_backend_create_dynamic_sections 413 #define elf_backend_create_dynamic_sections 0 414 #endif 415 #ifndef elf_backend_omit_section_dynsym 416 #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym 417 #endif 418 #ifndef elf_backend_relocs_compatible 419 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible 420 #endif 421 #ifndef elf_backend_check_relocs 422 #define elf_backend_check_relocs 0 423 #endif 424 #ifndef elf_backend_check_directives 425 #define elf_backend_check_directives 0 426 #endif 427 #ifndef elf_backend_as_needed_cleanup 428 #define elf_backend_as_needed_cleanup 0 429 #endif 430 #ifndef elf_backend_adjust_dynamic_symbol 431 #define elf_backend_adjust_dynamic_symbol 0 432 #endif 433 #ifndef elf_backend_always_size_sections 434 #define elf_backend_always_size_sections 0 435 #endif 436 #ifndef elf_backend_size_dynamic_sections 437 #define elf_backend_size_dynamic_sections 0 438 #endif 439 #ifndef elf_backend_init_index_section 440 #define elf_backend_init_index_section \ 441 ((void (*) (bfd *, struct bfd_link_info *)) bfd_void) 442 #endif 443 #ifndef elf_backend_relocate_section 444 #define elf_backend_relocate_section 0 445 #endif 446 #ifndef elf_backend_finish_dynamic_symbol 447 #define elf_backend_finish_dynamic_symbol 0 448 #endif 449 #ifndef elf_backend_finish_dynamic_sections 450 #define elf_backend_finish_dynamic_sections 0 451 #endif 452 #ifndef elf_backend_begin_write_processing 453 #define elf_backend_begin_write_processing 0 454 #endif 455 #ifndef elf_backend_final_write_processing 456 #define elf_backend_final_write_processing 0 457 #endif 458 #ifndef elf_backend_additional_program_headers 459 #define elf_backend_additional_program_headers 0 460 #endif 461 #ifndef elf_backend_modify_segment_map 462 #define elf_backend_modify_segment_map 0 463 #endif 464 #ifndef elf_backend_modify_program_headers 465 #define elf_backend_modify_program_headers 0 466 #endif 467 #ifndef elf_backend_ecoff_debug_swap 468 #define elf_backend_ecoff_debug_swap 0 469 #endif 470 #ifndef elf_backend_bfd_from_remote_memory 471 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory 472 #endif 473 #ifndef elf_backend_got_header_size 474 #define elf_backend_got_header_size 0 475 #endif 476 #ifndef elf_backend_got_elt_size 477 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size 478 #endif 479 #ifndef elf_backend_obj_attrs_vendor 480 #define elf_backend_obj_attrs_vendor NULL 481 #endif 482 #ifndef elf_backend_obj_attrs_section 483 #define elf_backend_obj_attrs_section NULL 484 #endif 485 #ifndef elf_backend_obj_attrs_arg_type 486 #define elf_backend_obj_attrs_arg_type NULL 487 #endif 488 #ifndef elf_backend_obj_attrs_section_type 489 #define elf_backend_obj_attrs_section_type SHT_GNU_ATTRIBUTES 490 #endif 491 #ifndef elf_backend_obj_attrs_order 492 #define elf_backend_obj_attrs_order NULL 493 #endif 494 #ifndef elf_backend_obj_attrs_handle_unknown 495 #define elf_backend_obj_attrs_handle_unknown NULL 496 #endif 497 #ifndef elf_backend_static_tls_alignment 498 #define elf_backend_static_tls_alignment 1 499 #endif 500 #ifndef elf_backend_post_process_headers 501 #define elf_backend_post_process_headers NULL 502 #endif 503 #ifndef elf_backend_print_symbol_all 504 #define elf_backend_print_symbol_all NULL 505 #endif 506 #ifndef elf_backend_output_arch_local_syms 507 #define elf_backend_output_arch_local_syms NULL 508 #endif 509 #ifndef elf_backend_output_arch_syms 510 #define elf_backend_output_arch_syms NULL 511 #endif 512 #ifndef elf_backend_copy_indirect_symbol 513 #define elf_backend_copy_indirect_symbol _bfd_elf_link_hash_copy_indirect 514 #endif 515 #ifndef elf_backend_hide_symbol 516 #define elf_backend_hide_symbol _bfd_elf_link_hash_hide_symbol 517 #endif 518 #ifndef elf_backend_fixup_symbol 519 #define elf_backend_fixup_symbol NULL 520 #endif 521 #ifndef elf_backend_merge_symbol_attribute 522 #define elf_backend_merge_symbol_attribute NULL 523 #endif 524 #ifndef elf_backend_get_target_dtag 525 #define elf_backend_get_target_dtag NULL 526 #endif 527 #ifndef elf_backend_ignore_undef_symbol 528 #define elf_backend_ignore_undef_symbol NULL 529 #endif 530 #ifndef elf_backend_emit_relocs 531 #define elf_backend_emit_relocs _bfd_elf_link_output_relocs 532 #endif 533 #ifndef elf_backend_count_relocs 534 #define elf_backend_count_relocs NULL 535 #endif 536 #ifndef elf_backend_grok_prstatus 537 #define elf_backend_grok_prstatus NULL 538 #endif 539 #ifndef elf_backend_grok_psinfo 540 #define elf_backend_grok_psinfo NULL 541 #endif 542 #ifndef elf_backend_write_core_note 543 #define elf_backend_write_core_note NULL 544 #endif 545 #ifndef elf_backend_lookup_section_flags_hook 546 #define elf_backend_lookup_section_flags_hook NULL 547 #endif 548 #ifndef elf_backend_reloc_type_class 549 #define elf_backend_reloc_type_class _bfd_elf_reloc_type_class 550 #endif 551 #ifndef elf_backend_discard_info 552 #define elf_backend_discard_info NULL 553 #endif 554 #ifndef elf_backend_ignore_discarded_relocs 555 #define elf_backend_ignore_discarded_relocs NULL 556 #endif 557 #ifndef elf_backend_action_discarded 558 #define elf_backend_action_discarded _bfd_elf_default_action_discarded 559 #endif 560 #ifndef elf_backend_eh_frame_address_size 561 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size 562 #endif 563 #ifndef elf_backend_can_make_relative_eh_frame 564 #define elf_backend_can_make_relative_eh_frame _bfd_elf_can_make_relative 565 #endif 566 #ifndef elf_backend_can_make_lsda_relative_eh_frame 567 #define elf_backend_can_make_lsda_relative_eh_frame _bfd_elf_can_make_relative 568 #endif 569 #ifndef elf_backend_encode_eh_address 570 #define elf_backend_encode_eh_address _bfd_elf_encode_eh_address 571 #endif 572 #ifndef elf_backend_write_section 573 #define elf_backend_write_section NULL 574 #endif 575 #ifndef elf_backend_mips_irix_compat 576 #define elf_backend_mips_irix_compat NULL 577 #endif 578 #ifndef elf_backend_mips_rtype_to_howto 579 #define elf_backend_mips_rtype_to_howto NULL 580 #endif 581 582 /* Previously, backends could only use SHT_REL or SHT_RELA relocation 583 sections, but not both. They defined USE_REL to indicate SHT_REL 584 sections, and left it undefined to indicated SHT_RELA sections. 585 For backwards compatibility, we still support this usage. */ 586 #ifndef USE_REL 587 #define USE_REL 0 588 #endif 589 590 /* Use these in new code. */ 591 #ifndef elf_backend_may_use_rel_p 592 #define elf_backend_may_use_rel_p USE_REL 593 #endif 594 #ifndef elf_backend_may_use_rela_p 595 #define elf_backend_may_use_rela_p !USE_REL 596 #endif 597 #ifndef elf_backend_default_use_rela_p 598 #define elf_backend_default_use_rela_p !USE_REL 599 #endif 600 #ifndef elf_backend_rela_plts_and_copies_p 601 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p 602 #endif 603 604 #ifndef elf_backend_rela_normal 605 #define elf_backend_rela_normal 0 606 #endif 607 608 #ifndef elf_backend_plt_sym_val 609 #define elf_backend_plt_sym_val NULL 610 #endif 611 #ifndef elf_backend_relplt_name 612 #define elf_backend_relplt_name NULL 613 #endif 614 615 #ifndef ELF_MACHINE_ALT1 616 #define ELF_MACHINE_ALT1 0 617 #endif 618 619 #ifndef ELF_MACHINE_ALT2 620 #define ELF_MACHINE_ALT2 0 621 #endif 622 623 #ifndef elf_backend_size_info 624 #define elf_backend_size_info _bfd_elfNN_size_info 625 #endif 626 627 #ifndef elf_backend_special_sections 628 #define elf_backend_special_sections NULL 629 #endif 630 631 #ifndef elf_backend_sign_extend_vma 632 #define elf_backend_sign_extend_vma 0 633 #endif 634 635 #ifndef elf_backend_link_order_error_handler 636 #define elf_backend_link_order_error_handler _bfd_default_error_handler 637 #endif 638 639 #ifndef elf_backend_common_definition 640 #define elf_backend_common_definition _bfd_elf_common_definition 641 #endif 642 643 #ifndef elf_backend_common_section_index 644 #define elf_backend_common_section_index _bfd_elf_common_section_index 645 #endif 646 647 #ifndef elf_backend_common_section 648 #define elf_backend_common_section _bfd_elf_common_section 649 #endif 650 651 #ifndef elf_backend_merge_symbol 652 #define elf_backend_merge_symbol NULL 653 #endif 654 655 #ifndef elf_backend_hash_symbol 656 #define elf_backend_hash_symbol _bfd_elf_hash_symbol 657 #endif 658 659 #ifndef elf_backend_is_function_type 660 #define elf_backend_is_function_type _bfd_elf_is_function_type 661 #endif 662 663 #ifndef elf_backend_maybe_function_sym 664 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym 665 #endif 666 667 #ifndef elf_match_priority 668 #define elf_match_priority \ 669 (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0) 670 #endif 671 672 extern const struct elf_size_info _bfd_elfNN_size_info; 673 674 static struct elf_backend_data elfNN_bed = 675 { 676 ELF_ARCH, /* arch */ 677 ELF_TARGET_ID, /* target_id */ 678 ELF_MACHINE_CODE, /* elf_machine_code */ 679 ELF_OSABI, /* elf_osabi */ 680 ELF_MAXPAGESIZE, /* maxpagesize */ 681 ELF_MINPAGESIZE, /* minpagesize */ 682 ELF_COMMONPAGESIZE, /* commonpagesize */ 683 ELF_DYNAMIC_SEC_FLAGS, /* dynamic_sec_flags */ 684 elf_backend_arch_data, 685 elf_info_to_howto, 686 elf_info_to_howto_rel, 687 elf_backend_sym_is_global, 688 elf_backend_object_p, 689 elf_backend_symbol_processing, 690 elf_backend_symbol_table_processing, 691 elf_backend_get_symbol_type, 692 elf_backend_archive_symbol_lookup, 693 elf_backend_name_local_section_symbols, 694 elf_backend_section_processing, 695 elf_backend_section_from_shdr, 696 elf_backend_section_flags, 697 elf_backend_get_sec_type_attr, 698 elf_backend_section_from_phdr, 699 elf_backend_fake_sections, 700 elf_backend_section_from_bfd_section, 701 elf_backend_add_symbol_hook, 702 elf_backend_link_output_symbol_hook, 703 elf_backend_create_dynamic_sections, 704 elf_backend_omit_section_dynsym, 705 elf_backend_relocs_compatible, 706 elf_backend_check_relocs, 707 elf_backend_check_directives, 708 elf_backend_as_needed_cleanup, 709 elf_backend_adjust_dynamic_symbol, 710 elf_backend_always_size_sections, 711 elf_backend_size_dynamic_sections, 712 elf_backend_init_index_section, 713 elf_backend_relocate_section, 714 elf_backend_finish_dynamic_symbol, 715 elf_backend_finish_dynamic_sections, 716 elf_backend_begin_write_processing, 717 elf_backend_final_write_processing, 718 elf_backend_additional_program_headers, 719 elf_backend_modify_segment_map, 720 elf_backend_modify_program_headers, 721 elf_backend_gc_keep, 722 elf_backend_gc_mark_dynamic_ref, 723 elf_backend_gc_mark_hook, 724 elf_backend_gc_mark_extra_sections, 725 elf_backend_gc_sweep_hook, 726 elf_backend_post_process_headers, 727 elf_backend_print_symbol_all, 728 elf_backend_output_arch_local_syms, 729 elf_backend_output_arch_syms, 730 elf_backend_copy_indirect_symbol, 731 elf_backend_hide_symbol, 732 elf_backend_fixup_symbol, 733 elf_backend_merge_symbol_attribute, 734 elf_backend_get_target_dtag, 735 elf_backend_ignore_undef_symbol, 736 elf_backend_emit_relocs, 737 elf_backend_count_relocs, 738 elf_backend_grok_prstatus, 739 elf_backend_grok_psinfo, 740 elf_backend_write_core_note, 741 elf_backend_lookup_section_flags_hook, 742 elf_backend_reloc_type_class, 743 elf_backend_discard_info, 744 elf_backend_ignore_discarded_relocs, 745 elf_backend_action_discarded, 746 elf_backend_eh_frame_address_size, 747 elf_backend_can_make_relative_eh_frame, 748 elf_backend_can_make_lsda_relative_eh_frame, 749 elf_backend_encode_eh_address, 750 elf_backend_write_section, 751 elf_backend_mips_irix_compat, 752 elf_backend_mips_rtype_to_howto, 753 elf_backend_ecoff_debug_swap, 754 elf_backend_bfd_from_remote_memory, 755 elf_backend_plt_sym_val, 756 elf_backend_common_definition, 757 elf_backend_common_section_index, 758 elf_backend_common_section, 759 elf_backend_merge_symbol, 760 elf_backend_hash_symbol, 761 elf_backend_is_function_type, 762 elf_backend_maybe_function_sym, 763 elf_backend_link_order_error_handler, 764 elf_backend_relplt_name, 765 ELF_MACHINE_ALT1, 766 ELF_MACHINE_ALT2, 767 &elf_backend_size_info, 768 elf_backend_special_sections, 769 elf_backend_got_header_size, 770 elf_backend_got_elt_size, 771 elf_backend_obj_attrs_vendor, 772 elf_backend_obj_attrs_section, 773 elf_backend_obj_attrs_arg_type, 774 elf_backend_obj_attrs_section_type, 775 elf_backend_obj_attrs_order, 776 elf_backend_obj_attrs_handle_unknown, 777 elf_backend_static_tls_alignment, 778 elf_backend_stack_align, 779 elf_backend_collect, 780 elf_backend_type_change_ok, 781 elf_backend_may_use_rel_p, 782 elf_backend_may_use_rela_p, 783 elf_backend_default_use_rela_p, 784 elf_backend_rela_plts_and_copies_p, 785 elf_backend_rela_normal, 786 elf_backend_sign_extend_vma, 787 elf_backend_want_got_plt, 788 elf_backend_plt_readonly, 789 elf_backend_want_plt_sym, 790 elf_backend_plt_not_loaded, 791 elf_backend_plt_alignment, 792 elf_backend_can_gc_sections, 793 elf_backend_can_refcount, 794 elf_backend_want_got_sym, 795 elf_backend_want_dynbss, 796 elf_backend_want_p_paddr_set_to_zero, 797 elf_backend_default_execstack 798 }; 799 800 /* Forward declaration for use when initialising alternative_target field. */ 801 #ifdef TARGET_LITTLE_SYM 802 extern const bfd_target TARGET_LITTLE_SYM; 803 #endif 804 805 #ifdef TARGET_BIG_SYM 806 const bfd_target TARGET_BIG_SYM = 807 { 808 /* name: identify kind of target */ 809 TARGET_BIG_NAME, 810 811 /* flavour: general indication about file */ 812 bfd_target_elf_flavour, 813 814 /* byteorder: data is big endian */ 815 BFD_ENDIAN_BIG, 816 817 /* header_byteorder: header is also big endian */ 818 BFD_ENDIAN_BIG, 819 820 /* object_flags: mask of all file flags */ 821 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS 822 | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS), 823 824 /* section_flags: mask of all section flags */ 825 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY 826 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES 827 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP), 828 829 /* leading_symbol_char: is the first char of a user symbol 830 predictable, and if so what is it */ 831 elf_symbol_leading_char, 832 833 /* ar_pad_char: pad character for filenames within an archive header 834 FIXME: this really has nothing to do with ELF, this is a characteristic 835 of the archiver and/or os and should be independently tunable */ 836 '/', 837 838 /* ar_max_namelen: maximum number of characters in an archive header 839 FIXME: this really has nothing to do with ELF, this is a characteristic 840 of the archiver and should be independently tunable. The System V ABI, 841 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */ 842 15, 843 844 elf_match_priority, 845 846 /* Routines to byte-swap various sized integers from the data sections */ 847 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 848 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 849 bfd_getb16, bfd_getb_signed_16, bfd_putb16, 850 851 /* Routines to byte-swap various sized integers from the file headers */ 852 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 853 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 854 bfd_getb16, bfd_getb_signed_16, bfd_putb16, 855 856 /* bfd_check_format: check the format of a file being read */ 857 { _bfd_dummy_target, /* unknown format */ 858 bfd_elfNN_object_p, /* assembler/linker output (object file) */ 859 bfd_elfNN_archive_p, /* an archive */ 860 bfd_elfNN_core_file_p /* a core file */ 861 }, 862 863 /* bfd_set_format: set the format of a file being written */ 864 { bfd_false, 865 bfd_elfNN_mkobject, 866 bfd_elfNN_mkarchive, 867 bfd_elfNN_mkcorefile 868 }, 869 870 /* bfd_write_contents: write cached information into a file being written */ 871 { bfd_false, 872 bfd_elfNN_write_object_contents, 873 bfd_elfNN_write_archive_contents, 874 bfd_elfNN_write_corefile_contents, 875 }, 876 877 BFD_JUMP_TABLE_GENERIC (bfd_elfNN), 878 BFD_JUMP_TABLE_COPY (bfd_elfNN), 879 BFD_JUMP_TABLE_CORE (bfd_elfNN), 880 #ifdef bfd_elfNN_archive_functions 881 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive), 882 #else 883 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), 884 #endif 885 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN), 886 BFD_JUMP_TABLE_RELOCS (bfd_elfNN), 887 BFD_JUMP_TABLE_WRITE (bfd_elfNN), 888 BFD_JUMP_TABLE_LINK (bfd_elfNN), 889 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN), 890 891 /* Alternative endian target. */ 892 #ifdef TARGET_LITTLE_SYM 893 & TARGET_LITTLE_SYM, 894 #else 895 NULL, 896 #endif 897 898 /* backend_data: */ 899 &elfNN_bed 900 }; 901 #endif 902 903 #ifdef TARGET_LITTLE_SYM 904 const bfd_target TARGET_LITTLE_SYM = 905 { 906 /* name: identify kind of target */ 907 TARGET_LITTLE_NAME, 908 909 /* flavour: general indication about file */ 910 bfd_target_elf_flavour, 911 912 /* byteorder: data is little endian */ 913 BFD_ENDIAN_LITTLE, 914 915 /* header_byteorder: header is also little endian */ 916 BFD_ENDIAN_LITTLE, 917 918 /* object_flags: mask of all file flags */ 919 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS 920 | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS), 921 922 /* section_flags: mask of all section flags */ 923 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY 924 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES 925 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP), 926 927 /* leading_symbol_char: is the first char of a user symbol 928 predictable, and if so what is it */ 929 elf_symbol_leading_char, 930 931 /* ar_pad_char: pad character for filenames within an archive header 932 FIXME: this really has nothing to do with ELF, this is a characteristic 933 of the archiver and/or os and should be independently tunable */ 934 '/', 935 936 /* ar_max_namelen: maximum number of characters in an archive header 937 FIXME: this really has nothing to do with ELF, this is a characteristic 938 of the archiver and should be independently tunable. The System V ABI, 939 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */ 940 15, 941 942 elf_match_priority, 943 944 /* Routines to byte-swap various sized integers from the data sections */ 945 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 946 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 947 bfd_getl16, bfd_getl_signed_16, bfd_putl16, 948 949 /* Routines to byte-swap various sized integers from the file headers */ 950 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 951 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 952 bfd_getl16, bfd_getl_signed_16, bfd_putl16, 953 954 /* bfd_check_format: check the format of a file being read */ 955 { _bfd_dummy_target, /* unknown format */ 956 bfd_elfNN_object_p, /* assembler/linker output (object file) */ 957 bfd_elfNN_archive_p, /* an archive */ 958 bfd_elfNN_core_file_p /* a core file */ 959 }, 960 961 /* bfd_set_format: set the format of a file being written */ 962 { bfd_false, 963 bfd_elfNN_mkobject, 964 bfd_elfNN_mkarchive, 965 bfd_elfNN_mkcorefile 966 }, 967 968 /* bfd_write_contents: write cached information into a file being written */ 969 { bfd_false, 970 bfd_elfNN_write_object_contents, 971 bfd_elfNN_write_archive_contents, 972 bfd_elfNN_write_corefile_contents, 973 }, 974 975 BFD_JUMP_TABLE_GENERIC (bfd_elfNN), 976 BFD_JUMP_TABLE_COPY (bfd_elfNN), 977 BFD_JUMP_TABLE_CORE (bfd_elfNN), 978 #ifdef bfd_elfNN_archive_functions 979 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive), 980 #else 981 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), 982 #endif 983 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN), 984 BFD_JUMP_TABLE_RELOCS (bfd_elfNN), 985 BFD_JUMP_TABLE_WRITE (bfd_elfNN), 986 BFD_JUMP_TABLE_LINK (bfd_elfNN), 987 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN), 988 989 /* Alternative endian target. */ 990 #ifdef TARGET_BIG_SYM 991 & TARGET_BIG_SYM, 992 #else 993 NULL, 994 #endif 995 996 /* backend_data: */ 997 &elfNN_bed 998 }; 999 #endif 1000