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 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_link_split_section 264 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section 265 #endif 266 267 #ifndef bfd_elfNN_archive_p 268 #define bfd_elfNN_archive_p bfd_generic_archive_p 269 #endif 270 271 #ifndef bfd_elfNN_write_archive_contents 272 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents 273 #endif 274 275 #ifndef bfd_elfNN_mkobject 276 #define bfd_elfNN_mkobject bfd_elf_make_generic_object 277 #endif 278 279 #ifndef bfd_elfNN_mkcorefile 280 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile 281 #endif 282 283 #ifndef bfd_elfNN_mkarchive 284 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive 285 #endif 286 287 #ifndef bfd_elfNN_print_symbol 288 #define bfd_elfNN_print_symbol bfd_elf_print_symbol 289 #endif 290 291 #ifndef elf_symbol_leading_char 292 #define elf_symbol_leading_char 0 293 #endif 294 295 #ifndef elf_info_to_howto 296 #define elf_info_to_howto 0 297 #endif 298 299 #ifndef elf_info_to_howto_rel 300 #define elf_info_to_howto_rel 0 301 #endif 302 303 #ifndef ELF_OSABI 304 #define ELF_OSABI ELFOSABI_NONE 305 #endif 306 307 #ifndef ELF_MAXPAGESIZE 308 # error ELF_MAXPAGESIZE is not defined 309 #define ELF_MAXPAGESIZE 1 310 #endif 311 312 #ifndef ELF_COMMONPAGESIZE 313 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE 314 #endif 315 316 #ifndef ELF_MINPAGESIZE 317 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE 318 #endif 319 320 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE 321 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE 322 #endif 323 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE 324 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE 325 #endif 326 327 #ifndef ELF_DYNAMIC_SEC_FLAGS 328 /* Note that we set the SEC_IN_MEMORY flag for these sections. */ 329 #define ELF_DYNAMIC_SEC_FLAGS \ 330 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS \ 331 | SEC_IN_MEMORY | SEC_LINKER_CREATED) 332 #endif 333 334 #ifndef elf_backend_collect 335 #define elf_backend_collect FALSE 336 #endif 337 #ifndef elf_backend_type_change_ok 338 #define elf_backend_type_change_ok FALSE 339 #endif 340 341 #ifndef elf_backend_sym_is_global 342 #define elf_backend_sym_is_global 0 343 #endif 344 #ifndef elf_backend_object_p 345 #define elf_backend_object_p 0 346 #endif 347 #ifndef elf_backend_symbol_processing 348 #define elf_backend_symbol_processing 0 349 #endif 350 #ifndef elf_backend_symbol_table_processing 351 #define elf_backend_symbol_table_processing 0 352 #endif 353 #ifndef elf_backend_get_symbol_type 354 #define elf_backend_get_symbol_type 0 355 #endif 356 #ifndef elf_backend_archive_symbol_lookup 357 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup 358 #endif 359 #ifndef elf_backend_name_local_section_symbols 360 #define elf_backend_name_local_section_symbols 0 361 #endif 362 #ifndef elf_backend_section_processing 363 #define elf_backend_section_processing 0 364 #endif 365 #ifndef elf_backend_section_from_shdr 366 #define elf_backend_section_from_shdr _bfd_elf_make_section_from_shdr 367 #endif 368 #ifndef elf_backend_section_flags 369 #define elf_backend_section_flags 0 370 #endif 371 #ifndef elf_backend_get_sec_type_attr 372 #define elf_backend_get_sec_type_attr _bfd_elf_get_sec_type_attr 373 #endif 374 #ifndef elf_backend_section_from_phdr 375 #define elf_backend_section_from_phdr _bfd_elf_make_section_from_phdr 376 #endif 377 #ifndef elf_backend_fake_sections 378 #define elf_backend_fake_sections 0 379 #endif 380 #ifndef elf_backend_section_from_bfd_section 381 #define elf_backend_section_from_bfd_section 0 382 #endif 383 #ifndef elf_backend_add_symbol_hook 384 #define elf_backend_add_symbol_hook 0 385 #endif 386 #ifndef elf_backend_link_output_symbol_hook 387 #define elf_backend_link_output_symbol_hook 0 388 #endif 389 #ifndef elf_backend_create_dynamic_sections 390 #define elf_backend_create_dynamic_sections 0 391 #endif 392 #ifndef elf_backend_omit_section_dynsym 393 #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym 394 #endif 395 #ifndef elf_backend_relocs_compatible 396 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible 397 #endif 398 #ifndef elf_backend_check_relocs 399 #define elf_backend_check_relocs 0 400 #endif 401 #ifndef elf_backend_check_directives 402 #define elf_backend_check_directives 0 403 #endif 404 #ifndef elf_backend_as_needed_cleanup 405 #define elf_backend_as_needed_cleanup 0 406 #endif 407 #ifndef elf_backend_adjust_dynamic_symbol 408 #define elf_backend_adjust_dynamic_symbol 0 409 #endif 410 #ifndef elf_backend_always_size_sections 411 #define elf_backend_always_size_sections 0 412 #endif 413 #ifndef elf_backend_size_dynamic_sections 414 #define elf_backend_size_dynamic_sections 0 415 #endif 416 #ifndef elf_backend_init_index_section 417 #define elf_backend_init_index_section \ 418 ((void (*) (bfd *, struct bfd_link_info *)) bfd_void) 419 #endif 420 #ifndef elf_backend_relocate_section 421 #define elf_backend_relocate_section 0 422 #endif 423 #ifndef elf_backend_finish_dynamic_symbol 424 #define elf_backend_finish_dynamic_symbol 0 425 #endif 426 #ifndef elf_backend_finish_dynamic_sections 427 #define elf_backend_finish_dynamic_sections 0 428 #endif 429 #ifndef elf_backend_begin_write_processing 430 #define elf_backend_begin_write_processing 0 431 #endif 432 #ifndef elf_backend_final_write_processing 433 #define elf_backend_final_write_processing 0 434 #endif 435 #ifndef elf_backend_additional_program_headers 436 #define elf_backend_additional_program_headers 0 437 #endif 438 #ifndef elf_backend_modify_segment_map 439 #define elf_backend_modify_segment_map 0 440 #endif 441 #ifndef elf_backend_modify_program_headers 442 #define elf_backend_modify_program_headers 0 443 #endif 444 #ifndef elf_backend_ecoff_debug_swap 445 #define elf_backend_ecoff_debug_swap 0 446 #endif 447 #ifndef elf_backend_bfd_from_remote_memory 448 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory 449 #endif 450 #ifndef elf_backend_got_header_size 451 #define elf_backend_got_header_size 0 452 #endif 453 #ifndef elf_backend_got_elt_size 454 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size 455 #endif 456 #ifndef elf_backend_obj_attrs_vendor 457 #define elf_backend_obj_attrs_vendor NULL 458 #endif 459 #ifndef elf_backend_obj_attrs_section 460 #define elf_backend_obj_attrs_section NULL 461 #endif 462 #ifndef elf_backend_obj_attrs_arg_type 463 #define elf_backend_obj_attrs_arg_type NULL 464 #endif 465 #ifndef elf_backend_obj_attrs_section_type 466 #define elf_backend_obj_attrs_section_type SHT_GNU_ATTRIBUTES 467 #endif 468 #ifndef elf_backend_obj_attrs_order 469 #define elf_backend_obj_attrs_order NULL 470 #endif 471 #ifndef elf_backend_post_process_headers 472 #define elf_backend_post_process_headers NULL 473 #endif 474 #ifndef elf_backend_print_symbol_all 475 #define elf_backend_print_symbol_all NULL 476 #endif 477 #ifndef elf_backend_output_arch_local_syms 478 #define elf_backend_output_arch_local_syms NULL 479 #endif 480 #ifndef elf_backend_output_arch_syms 481 #define elf_backend_output_arch_syms NULL 482 #endif 483 #ifndef elf_backend_copy_indirect_symbol 484 #define elf_backend_copy_indirect_symbol _bfd_elf_link_hash_copy_indirect 485 #endif 486 #ifndef elf_backend_hide_symbol 487 #define elf_backend_hide_symbol _bfd_elf_link_hash_hide_symbol 488 #endif 489 #ifndef elf_backend_fixup_symbol 490 #define elf_backend_fixup_symbol NULL 491 #endif 492 #ifndef elf_backend_merge_symbol_attribute 493 #define elf_backend_merge_symbol_attribute NULL 494 #endif 495 #ifndef elf_backend_get_target_dtag 496 #define elf_backend_get_target_dtag NULL 497 #endif 498 #ifndef elf_backend_ignore_undef_symbol 499 #define elf_backend_ignore_undef_symbol NULL 500 #endif 501 #ifndef elf_backend_emit_relocs 502 #define elf_backend_emit_relocs _bfd_elf_link_output_relocs 503 #endif 504 #ifndef elf_backend_count_relocs 505 #define elf_backend_count_relocs NULL 506 #endif 507 #ifndef elf_backend_grok_prstatus 508 #define elf_backend_grok_prstatus NULL 509 #endif 510 #ifndef elf_backend_grok_psinfo 511 #define elf_backend_grok_psinfo NULL 512 #endif 513 #ifndef elf_backend_write_core_note 514 #define elf_backend_write_core_note NULL 515 #endif 516 #ifndef elf_backend_reloc_type_class 517 #define elf_backend_reloc_type_class _bfd_elf_reloc_type_class 518 #endif 519 #ifndef elf_backend_discard_info 520 #define elf_backend_discard_info NULL 521 #endif 522 #ifndef elf_backend_ignore_discarded_relocs 523 #define elf_backend_ignore_discarded_relocs NULL 524 #endif 525 #ifndef elf_backend_action_discarded 526 #define elf_backend_action_discarded _bfd_elf_default_action_discarded 527 #endif 528 #ifndef elf_backend_eh_frame_address_size 529 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size 530 #endif 531 #ifndef elf_backend_can_make_relative_eh_frame 532 #define elf_backend_can_make_relative_eh_frame _bfd_elf_can_make_relative 533 #endif 534 #ifndef elf_backend_can_make_lsda_relative_eh_frame 535 #define elf_backend_can_make_lsda_relative_eh_frame _bfd_elf_can_make_relative 536 #endif 537 #ifndef elf_backend_encode_eh_address 538 #define elf_backend_encode_eh_address _bfd_elf_encode_eh_address 539 #endif 540 #ifndef elf_backend_write_section 541 #define elf_backend_write_section NULL 542 #endif 543 #ifndef elf_backend_mips_irix_compat 544 #define elf_backend_mips_irix_compat NULL 545 #endif 546 #ifndef elf_backend_mips_rtype_to_howto 547 #define elf_backend_mips_rtype_to_howto NULL 548 #endif 549 550 /* Previously, backends could only use SHT_REL or SHT_RELA relocation 551 sections, but not both. They defined USE_REL to indicate SHT_REL 552 sections, and left it undefined to indicated SHT_RELA sections. 553 For backwards compatibility, we still support this usage. */ 554 #ifndef USE_REL 555 #define USE_REL 0 556 #endif 557 558 /* Use these in new code. */ 559 #ifndef elf_backend_may_use_rel_p 560 #define elf_backend_may_use_rel_p USE_REL 561 #endif 562 #ifndef elf_backend_may_use_rela_p 563 #define elf_backend_may_use_rela_p !USE_REL 564 #endif 565 #ifndef elf_backend_default_use_rela_p 566 #define elf_backend_default_use_rela_p !USE_REL 567 #endif 568 #ifndef elf_backend_rela_plts_and_copies_p 569 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p 570 #endif 571 572 #ifndef elf_backend_rela_normal 573 #define elf_backend_rela_normal 0 574 #endif 575 576 #ifndef elf_backend_plt_sym_val 577 #define elf_backend_plt_sym_val NULL 578 #endif 579 #ifndef elf_backend_relplt_name 580 #define elf_backend_relplt_name NULL 581 #endif 582 583 #ifndef ELF_MACHINE_ALT1 584 #define ELF_MACHINE_ALT1 0 585 #endif 586 587 #ifndef ELF_MACHINE_ALT2 588 #define ELF_MACHINE_ALT2 0 589 #endif 590 591 #ifndef elf_backend_size_info 592 #define elf_backend_size_info _bfd_elfNN_size_info 593 #endif 594 595 #ifndef elf_backend_special_sections 596 #define elf_backend_special_sections NULL 597 #endif 598 599 #ifndef elf_backend_sign_extend_vma 600 #define elf_backend_sign_extend_vma 0 601 #endif 602 603 #ifndef elf_backend_link_order_error_handler 604 #define elf_backend_link_order_error_handler _bfd_default_error_handler 605 #endif 606 607 #ifndef elf_backend_common_definition 608 #define elf_backend_common_definition _bfd_elf_common_definition 609 #endif 610 611 #ifndef elf_backend_common_section_index 612 #define elf_backend_common_section_index _bfd_elf_common_section_index 613 #endif 614 615 #ifndef elf_backend_common_section 616 #define elf_backend_common_section _bfd_elf_common_section 617 #endif 618 619 #ifndef elf_backend_merge_symbol 620 #define elf_backend_merge_symbol NULL 621 #endif 622 623 #ifndef elf_backend_hash_symbol 624 #define elf_backend_hash_symbol _bfd_elf_hash_symbol 625 #endif 626 627 #ifndef elf_backend_is_function_type 628 #define elf_backend_is_function_type _bfd_elf_is_function_type 629 #endif 630 631 extern const struct elf_size_info _bfd_elfNN_size_info; 632 633 static struct elf_backend_data elfNN_bed = 634 { 635 ELF_ARCH, /* arch */ 636 ELF_MACHINE_CODE, /* elf_machine_code */ 637 ELF_OSABI, /* elf_osabi */ 638 ELF_MAXPAGESIZE, /* maxpagesize */ 639 ELF_MINPAGESIZE, /* minpagesize */ 640 ELF_COMMONPAGESIZE, /* commonpagesize */ 641 ELF_DYNAMIC_SEC_FLAGS, /* dynamic_sec_flags */ 642 elf_info_to_howto, 643 elf_info_to_howto_rel, 644 elf_backend_sym_is_global, 645 elf_backend_object_p, 646 elf_backend_symbol_processing, 647 elf_backend_symbol_table_processing, 648 elf_backend_get_symbol_type, 649 elf_backend_archive_symbol_lookup, 650 elf_backend_name_local_section_symbols, 651 elf_backend_section_processing, 652 elf_backend_section_from_shdr, 653 elf_backend_section_flags, 654 elf_backend_get_sec_type_attr, 655 elf_backend_section_from_phdr, 656 elf_backend_fake_sections, 657 elf_backend_section_from_bfd_section, 658 elf_backend_add_symbol_hook, 659 elf_backend_link_output_symbol_hook, 660 elf_backend_create_dynamic_sections, 661 elf_backend_omit_section_dynsym, 662 elf_backend_relocs_compatible, 663 elf_backend_check_relocs, 664 elf_backend_check_directives, 665 elf_backend_as_needed_cleanup, 666 elf_backend_adjust_dynamic_symbol, 667 elf_backend_always_size_sections, 668 elf_backend_size_dynamic_sections, 669 elf_backend_init_index_section, 670 elf_backend_relocate_section, 671 elf_backend_finish_dynamic_symbol, 672 elf_backend_finish_dynamic_sections, 673 elf_backend_begin_write_processing, 674 elf_backend_final_write_processing, 675 elf_backend_additional_program_headers, 676 elf_backend_modify_segment_map, 677 elf_backend_modify_program_headers, 678 elf_backend_gc_keep, 679 elf_backend_gc_mark_dynamic_ref, 680 elf_backend_gc_mark_hook, 681 elf_backend_gc_mark_extra_sections, 682 elf_backend_gc_sweep_hook, 683 elf_backend_post_process_headers, 684 elf_backend_print_symbol_all, 685 elf_backend_output_arch_local_syms, 686 elf_backend_output_arch_syms, 687 elf_backend_copy_indirect_symbol, 688 elf_backend_hide_symbol, 689 elf_backend_fixup_symbol, 690 elf_backend_merge_symbol_attribute, 691 elf_backend_get_target_dtag, 692 elf_backend_ignore_undef_symbol, 693 elf_backend_emit_relocs, 694 elf_backend_count_relocs, 695 elf_backend_grok_prstatus, 696 elf_backend_grok_psinfo, 697 elf_backend_write_core_note, 698 elf_backend_reloc_type_class, 699 elf_backend_discard_info, 700 elf_backend_ignore_discarded_relocs, 701 elf_backend_action_discarded, 702 elf_backend_eh_frame_address_size, 703 elf_backend_can_make_relative_eh_frame, 704 elf_backend_can_make_lsda_relative_eh_frame, 705 elf_backend_encode_eh_address, 706 elf_backend_write_section, 707 elf_backend_mips_irix_compat, 708 elf_backend_mips_rtype_to_howto, 709 elf_backend_ecoff_debug_swap, 710 elf_backend_bfd_from_remote_memory, 711 elf_backend_plt_sym_val, 712 elf_backend_common_definition, 713 elf_backend_common_section_index, 714 elf_backend_common_section, 715 elf_backend_merge_symbol, 716 elf_backend_hash_symbol, 717 elf_backend_is_function_type, 718 elf_backend_link_order_error_handler, 719 elf_backend_relplt_name, 720 ELF_MACHINE_ALT1, 721 ELF_MACHINE_ALT2, 722 &elf_backend_size_info, 723 elf_backend_special_sections, 724 elf_backend_got_header_size, 725 elf_backend_got_elt_size, 726 elf_backend_obj_attrs_vendor, 727 elf_backend_obj_attrs_section, 728 elf_backend_obj_attrs_arg_type, 729 elf_backend_obj_attrs_section_type, 730 elf_backend_obj_attrs_order, 731 elf_backend_collect, 732 elf_backend_type_change_ok, 733 elf_backend_may_use_rel_p, 734 elf_backend_may_use_rela_p, 735 elf_backend_default_use_rela_p, 736 elf_backend_rela_plts_and_copies_p, 737 elf_backend_rela_normal, 738 elf_backend_sign_extend_vma, 739 elf_backend_want_got_plt, 740 elf_backend_plt_readonly, 741 elf_backend_want_plt_sym, 742 elf_backend_plt_not_loaded, 743 elf_backend_plt_alignment, 744 elf_backend_can_gc_sections, 745 elf_backend_can_refcount, 746 elf_backend_want_got_sym, 747 elf_backend_want_dynbss, 748 elf_backend_want_p_paddr_set_to_zero, 749 elf_backend_default_execstack 750 }; 751 752 /* Forward declaration for use when initialising alternative_target field. */ 753 #ifdef TARGET_LITTLE_SYM 754 extern const bfd_target TARGET_LITTLE_SYM; 755 #endif 756 757 #ifdef TARGET_BIG_SYM 758 const bfd_target TARGET_BIG_SYM = 759 { 760 /* name: identify kind of target */ 761 TARGET_BIG_NAME, 762 763 /* flavour: general indication about file */ 764 bfd_target_elf_flavour, 765 766 /* byteorder: data is big endian */ 767 BFD_ENDIAN_BIG, 768 769 /* header_byteorder: header is also big endian */ 770 BFD_ENDIAN_BIG, 771 772 /* object_flags: mask of all file flags */ 773 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS 774 | DYNAMIC | WP_TEXT | D_PAGED), 775 776 /* section_flags: mask of all section flags */ 777 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY 778 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES 779 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP), 780 781 /* leading_symbol_char: is the first char of a user symbol 782 predictable, and if so what is it */ 783 elf_symbol_leading_char, 784 785 /* ar_pad_char: pad character for filenames within an archive header 786 FIXME: this really has nothing to do with ELF, this is a characteristic 787 of the archiver and/or os and should be independently tunable */ 788 '/', 789 790 /* ar_max_namelen: maximum number of characters in an archive header 791 FIXME: this really has nothing to do with ELF, this is a characteristic 792 of the archiver and should be independently tunable. The System V ABI, 793 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */ 794 15, 795 796 /* Routines to byte-swap various sized integers from the data sections */ 797 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 798 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 799 bfd_getb16, bfd_getb_signed_16, bfd_putb16, 800 801 /* Routines to byte-swap various sized integers from the file headers */ 802 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 803 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 804 bfd_getb16, bfd_getb_signed_16, bfd_putb16, 805 806 /* bfd_check_format: check the format of a file being read */ 807 { _bfd_dummy_target, /* unknown format */ 808 bfd_elfNN_object_p, /* assembler/linker output (object file) */ 809 bfd_elfNN_archive_p, /* an archive */ 810 bfd_elfNN_core_file_p /* a core file */ 811 }, 812 813 /* bfd_set_format: set the format of a file being written */ 814 { bfd_false, 815 bfd_elfNN_mkobject, 816 bfd_elfNN_mkarchive, 817 bfd_elfNN_mkcorefile 818 }, 819 820 /* bfd_write_contents: write cached information into a file being written */ 821 { bfd_false, 822 bfd_elfNN_write_object_contents, 823 bfd_elfNN_write_archive_contents, 824 bfd_elfNN_write_corefile_contents, 825 }, 826 827 BFD_JUMP_TABLE_GENERIC (bfd_elfNN), 828 BFD_JUMP_TABLE_COPY (bfd_elfNN), 829 BFD_JUMP_TABLE_CORE (bfd_elfNN), 830 #ifdef bfd_elfNN_archive_functions 831 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive), 832 #else 833 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), 834 #endif 835 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN), 836 BFD_JUMP_TABLE_RELOCS (bfd_elfNN), 837 BFD_JUMP_TABLE_WRITE (bfd_elfNN), 838 BFD_JUMP_TABLE_LINK (bfd_elfNN), 839 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN), 840 841 /* Alternative endian target. */ 842 #ifdef TARGET_LITTLE_SYM 843 & TARGET_LITTLE_SYM, 844 #else 845 NULL, 846 #endif 847 848 /* backend_data: */ 849 &elfNN_bed 850 }; 851 #endif 852 853 #ifdef TARGET_LITTLE_SYM 854 const bfd_target TARGET_LITTLE_SYM = 855 { 856 /* name: identify kind of target */ 857 TARGET_LITTLE_NAME, 858 859 /* flavour: general indication about file */ 860 bfd_target_elf_flavour, 861 862 /* byteorder: data is little endian */ 863 BFD_ENDIAN_LITTLE, 864 865 /* header_byteorder: header is also little endian */ 866 BFD_ENDIAN_LITTLE, 867 868 /* object_flags: mask of all file flags */ 869 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS 870 | DYNAMIC | WP_TEXT | D_PAGED), 871 872 /* section_flags: mask of all section flags */ 873 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY 874 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES 875 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP), 876 877 /* leading_symbol_char: is the first char of a user symbol 878 predictable, and if so what is it */ 879 elf_symbol_leading_char, 880 881 /* ar_pad_char: pad character for filenames within an archive header 882 FIXME: this really has nothing to do with ELF, this is a characteristic 883 of the archiver and/or os and should be independently tunable */ 884 '/', 885 886 /* ar_max_namelen: maximum number of characters in an archive header 887 FIXME: this really has nothing to do with ELF, this is a characteristic 888 of the archiver and should be independently tunable. The System V ABI, 889 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */ 890 15, 891 892 /* Routines to byte-swap various sized integers from the data sections */ 893 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 894 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 895 bfd_getl16, bfd_getl_signed_16, bfd_putl16, 896 897 /* Routines to byte-swap various sized integers from the file headers */ 898 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 899 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 900 bfd_getl16, bfd_getl_signed_16, bfd_putl16, 901 902 /* bfd_check_format: check the format of a file being read */ 903 { _bfd_dummy_target, /* unknown format */ 904 bfd_elfNN_object_p, /* assembler/linker output (object file) */ 905 bfd_elfNN_archive_p, /* an archive */ 906 bfd_elfNN_core_file_p /* a core file */ 907 }, 908 909 /* bfd_set_format: set the format of a file being written */ 910 { bfd_false, 911 bfd_elfNN_mkobject, 912 bfd_elfNN_mkarchive, 913 bfd_elfNN_mkcorefile 914 }, 915 916 /* bfd_write_contents: write cached information into a file being written */ 917 { bfd_false, 918 bfd_elfNN_write_object_contents, 919 bfd_elfNN_write_archive_contents, 920 bfd_elfNN_write_corefile_contents, 921 }, 922 923 BFD_JUMP_TABLE_GENERIC (bfd_elfNN), 924 BFD_JUMP_TABLE_COPY (bfd_elfNN), 925 BFD_JUMP_TABLE_CORE (bfd_elfNN), 926 #ifdef bfd_elfNN_archive_functions 927 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive), 928 #else 929 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), 930 #endif 931 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN), 932 BFD_JUMP_TABLE_RELOCS (bfd_elfNN), 933 BFD_JUMP_TABLE_WRITE (bfd_elfNN), 934 BFD_JUMP_TABLE_LINK (bfd_elfNN), 935 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN), 936 937 /* Alternative endian target. */ 938 #ifdef TARGET_BIG_SYM 939 & TARGET_BIG_SYM, 940 #else 941 NULL, 942 #endif 943 944 /* backend_data: */ 945 &elfNN_bed 946 }; 947 #endif 948