1/* Target definitions for NN-bit ELF 2 Copyright (C) 1993-2017 Free Software Foundation, Inc. 3 4 This file is part of BFD, the Binary File Descriptor library. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 19 MA 02110-1301, USA. */ 20 21 22/* This structure contains everything that BFD knows about a target. 23 It includes things like its byte order, name, what routines to call 24 to do various operations, etc. Every BFD points to a target structure 25 with its "xvec" member. 26 27 There are two such structures here: one for big-endian machines and 28 one for little-endian machines. */ 29 30#ifndef bfd_elfNN_close_and_cleanup 31#define bfd_elfNN_close_and_cleanup _bfd_elf_close_and_cleanup 32#endif 33#ifndef bfd_elfNN_bfd_free_cached_info 34#define bfd_elfNN_bfd_free_cached_info _bfd_free_cached_info 35#endif 36#ifndef bfd_elfNN_get_section_contents 37#define bfd_elfNN_get_section_contents _bfd_generic_get_section_contents 38#endif 39 40#define bfd_elfNN_canonicalize_dynamic_symtab \ 41 _bfd_elf_canonicalize_dynamic_symtab 42#ifndef bfd_elfNN_get_synthetic_symtab 43#define bfd_elfNN_get_synthetic_symtab \ 44 _bfd_elf_get_synthetic_symtab 45#endif 46#ifndef bfd_elfNN_canonicalize_reloc 47#define bfd_elfNN_canonicalize_reloc _bfd_elf_canonicalize_reloc 48#endif 49#ifndef bfd_elfNN_find_nearest_line 50#define bfd_elfNN_find_nearest_line _bfd_elf_find_nearest_line 51#endif 52#ifndef bfd_elfNN_find_line 53#define bfd_elfNN_find_line _bfd_elf_find_line 54#endif 55#ifndef bfd_elfNN_find_inliner_info 56#define bfd_elfNN_find_inliner_info _bfd_elf_find_inliner_info 57#endif 58#define bfd_elfNN_read_minisymbols _bfd_elf_read_minisymbols 59#define bfd_elfNN_minisymbol_to_symbol _bfd_elf_minisymbol_to_symbol 60#define bfd_elfNN_get_dynamic_symtab_upper_bound \ 61 _bfd_elf_get_dynamic_symtab_upper_bound 62#define bfd_elfNN_get_lineno _bfd_elf_get_lineno 63#ifndef bfd_elfNN_get_reloc_upper_bound 64#define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound 65#endif 66#ifndef bfd_elfNN_get_symbol_info 67#define bfd_elfNN_get_symbol_info _bfd_elf_get_symbol_info 68#endif 69#ifndef bfd_elfNN_get_symbol_version_string 70#define bfd_elfNN_get_symbol_version_string \ 71 _bfd_elf_get_symbol_version_string 72#endif 73#define bfd_elfNN_canonicalize_symtab _bfd_elf_canonicalize_symtab 74#define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound 75#define bfd_elfNN_make_empty_symbol _bfd_elf_make_empty_symbol 76#ifndef bfd_elfNN_new_section_hook 77#define bfd_elfNN_new_section_hook _bfd_elf_new_section_hook 78#endif 79#define bfd_elfNN_set_arch_mach _bfd_elf_set_arch_mach 80#ifndef bfd_elfNN_set_section_contents 81#define bfd_elfNN_set_section_contents _bfd_elf_set_section_contents 82#endif 83#define bfd_elfNN_sizeof_headers _bfd_elf_sizeof_headers 84#define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents 85#define bfd_elfNN_write_corefile_contents _bfd_elf_write_corefile_contents 86 87#define bfd_elfNN_get_section_contents_in_window \ 88 _bfd_generic_get_section_contents_in_window 89 90#ifndef elf_backend_can_refcount 91#define elf_backend_can_refcount 0 92#endif 93#ifndef elf_backend_want_got_plt 94#define elf_backend_want_got_plt 0 95#endif 96#ifndef elf_backend_plt_readonly 97#define elf_backend_plt_readonly 0 98#endif 99#ifndef elf_backend_want_plt_sym 100#define elf_backend_want_plt_sym 0 101#endif 102#ifndef elf_backend_plt_not_loaded 103#define elf_backend_plt_not_loaded 0 104#endif 105#ifndef elf_backend_plt_alignment 106#define elf_backend_plt_alignment 2 107#endif 108#ifndef elf_backend_want_dynbss 109#define elf_backend_want_dynbss 1 110#endif 111#ifndef elf_backend_want_dynrelro 112#define elf_backend_want_dynrelro 0 113#endif 114#ifndef elf_backend_want_p_paddr_set_to_zero 115#define elf_backend_want_p_paddr_set_to_zero 0 116#endif 117#ifndef elf_backend_no_page_alias 118#define elf_backend_no_page_alias 0 119#endif 120#ifndef elf_backend_default_execstack 121#define elf_backend_default_execstack 1 122#endif 123#ifndef elf_backend_caches_rawsize 124#define elf_backend_caches_rawsize 0 125#endif 126#ifndef elf_backend_extern_protected_data 127#define elf_backend_extern_protected_data 0 128#endif 129#ifndef elf_backend_always_renumber_dynsyms 130#define elf_backend_always_renumber_dynsyms FALSE 131#endif 132#ifndef elf_backend_stack_align 133#define elf_backend_stack_align 16 134#endif 135#ifndef elf_backend_strtab_flags 136#define elf_backend_strtab_flags 0 137#endif 138 139#define bfd_elfNN_bfd_debug_info_start bfd_void 140#define bfd_elfNN_bfd_debug_info_end bfd_void 141#define bfd_elfNN_bfd_debug_info_accumulate \ 142 ((void (*) (bfd*, struct bfd_section *)) bfd_void) 143 144#ifndef bfd_elfNN_bfd_get_relocated_section_contents 145#define bfd_elfNN_bfd_get_relocated_section_contents \ 146 bfd_generic_get_relocated_section_contents 147#endif 148 149#ifndef bfd_elfNN_bfd_relax_section 150#define bfd_elfNN_bfd_relax_section bfd_generic_relax_section 151#endif 152 153#ifndef elf_backend_can_gc_sections 154#define elf_backend_can_gc_sections 0 155#endif 156#ifndef elf_backend_can_refcount 157#define elf_backend_can_refcount 0 158#endif 159#ifndef elf_backend_want_got_sym 160#define elf_backend_want_got_sym 1 161#endif 162#ifndef elf_backend_gc_keep 163#define elf_backend_gc_keep _bfd_elf_gc_keep 164#endif 165#ifndef elf_backend_gc_mark_dynamic_ref 166#define elf_backend_gc_mark_dynamic_ref bfd_elf_gc_mark_dynamic_ref_symbol 167#endif 168#ifndef elf_backend_gc_mark_hook 169#define elf_backend_gc_mark_hook _bfd_elf_gc_mark_hook 170#endif 171#ifndef elf_backend_gc_mark_extra_sections 172#define elf_backend_gc_mark_extra_sections _bfd_elf_gc_mark_extra_sections 173#endif 174#ifndef elf_backend_gc_sweep_hook 175#define elf_backend_gc_sweep_hook NULL 176#endif 177#ifndef bfd_elfNN_bfd_gc_sections 178#define bfd_elfNN_bfd_gc_sections bfd_elf_gc_sections 179#endif 180 181#ifndef bfd_elfNN_bfd_merge_sections 182#define bfd_elfNN_bfd_merge_sections \ 183 _bfd_elf_merge_sections 184#endif 185 186#ifndef bfd_elfNN_bfd_is_group_section 187#define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section 188#endif 189 190#ifndef bfd_elfNN_bfd_discard_group 191#define bfd_elfNN_bfd_discard_group bfd_generic_discard_group 192#endif 193 194#ifndef bfd_elfNN_section_already_linked 195#define bfd_elfNN_section_already_linked \ 196 _bfd_elf_section_already_linked 197#endif 198 199#ifndef bfd_elfNN_bfd_define_common_symbol 200#define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol 201#endif 202 203#ifndef bfd_elfNN_bfd_lookup_section_flags 204#define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags 205#endif 206 207#ifndef bfd_elfNN_bfd_make_debug_symbol 208#define bfd_elfNN_bfd_make_debug_symbol \ 209 ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr) 210#endif 211 212#ifndef bfd_elfNN_bfd_copy_private_symbol_data 213#define bfd_elfNN_bfd_copy_private_symbol_data \ 214 _bfd_elf_copy_private_symbol_data 215#endif 216 217#ifndef bfd_elfNN_bfd_copy_private_section_data 218#define bfd_elfNN_bfd_copy_private_section_data \ 219 _bfd_elf_copy_private_section_data 220#endif 221#ifndef bfd_elfNN_bfd_copy_private_header_data 222#define bfd_elfNN_bfd_copy_private_header_data \ 223 _bfd_elf_copy_private_header_data 224#endif 225#ifndef bfd_elfNN_bfd_copy_private_bfd_data 226#define bfd_elfNN_bfd_copy_private_bfd_data \ 227 _bfd_elf_copy_private_bfd_data 228#endif 229#ifndef bfd_elfNN_bfd_print_private_bfd_data 230#define bfd_elfNN_bfd_print_private_bfd_data \ 231 _bfd_elf_print_private_bfd_data 232#endif 233#ifndef bfd_elfNN_bfd_merge_private_bfd_data 234#define bfd_elfNN_bfd_merge_private_bfd_data \ 235 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_true) 236#endif 237#ifndef bfd_elfNN_bfd_set_private_flags 238#define bfd_elfNN_bfd_set_private_flags \ 239 ((bfd_boolean (*) (bfd *, flagword)) bfd_true) 240#endif 241#ifndef bfd_elfNN_bfd_is_local_label_name 242#define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name 243#endif 244#ifndef bfd_elfNN_bfd_is_target_special_symbol 245#define bfd_elfNN_bfd_is_target_special_symbol \ 246 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 247#endif 248 249#ifndef bfd_elfNN_get_dynamic_reloc_upper_bound 250#define bfd_elfNN_get_dynamic_reloc_upper_bound \ 251 _bfd_elf_get_dynamic_reloc_upper_bound 252#endif 253#ifndef bfd_elfNN_canonicalize_dynamic_reloc 254#define bfd_elfNN_canonicalize_dynamic_reloc \ 255 _bfd_elf_canonicalize_dynamic_reloc 256#endif 257 258#ifdef elf_backend_relocate_section 259#ifndef bfd_elfNN_bfd_link_hash_table_create 260#define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create 261#endif 262#ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type 263#define bfd_elfNN_bfd_copy_link_hash_symbol_type \ 264 _bfd_elf_copy_link_hash_symbol_type 265#endif 266#ifndef bfd_elfNN_bfd_link_add_symbols 267#define bfd_elfNN_bfd_link_add_symbols bfd_elf_link_add_symbols 268#endif 269#ifndef bfd_elfNN_bfd_final_link 270#define bfd_elfNN_bfd_final_link bfd_elf_final_link 271#endif 272#else /* ! defined (elf_backend_relocate_section) */ 273/* If no backend relocate_section routine, use the generic linker. 274 Note - this will prevent the port from being able to use some of 275 the other features of the ELF linker, because the generic hash structure 276 does not have the fields needed by the ELF linker. In particular it 277 means that linking directly to S-records will not work. */ 278#ifndef bfd_elfNN_bfd_link_hash_table_create 279#define bfd_elfNN_bfd_link_hash_table_create \ 280 _bfd_generic_link_hash_table_create 281#endif 282#ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type 283#define bfd_elfNN_bfd_copy_link_hash_symbol_type \ 284 _bfd_generic_copy_link_hash_symbol_type 285#endif 286#ifndef bfd_elfNN_bfd_link_add_symbols 287#define bfd_elfNN_bfd_link_add_symbols _bfd_generic_link_add_symbols 288#endif 289#ifndef bfd_elfNN_bfd_final_link 290#define bfd_elfNN_bfd_final_link _bfd_generic_final_link 291#endif 292#endif /* ! defined (elf_backend_relocate_section) */ 293 294#ifndef bfd_elfNN_bfd_link_just_syms 295#define bfd_elfNN_bfd_link_just_syms _bfd_elf_link_just_syms 296#endif 297 298#ifndef bfd_elfNN_bfd_link_split_section 299#define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section 300#endif 301 302#ifndef bfd_elfNN_bfd_link_check_relocs 303#define bfd_elfNN_bfd_link_check_relocs _bfd_elf_link_check_relocs 304#endif 305 306#ifndef bfd_elfNN_archive_p 307#define bfd_elfNN_archive_p bfd_generic_archive_p 308#endif 309 310#ifndef bfd_elfNN_write_archive_contents 311#define bfd_elfNN_write_archive_contents _bfd_write_archive_contents 312#endif 313 314#ifndef bfd_elfNN_mkobject 315#define bfd_elfNN_mkobject bfd_elf_make_object 316#endif 317 318#ifndef bfd_elfNN_mkcorefile 319#define bfd_elfNN_mkcorefile bfd_elf_mkcorefile 320#endif 321 322#ifndef bfd_elfNN_mkarchive 323#define bfd_elfNN_mkarchive _bfd_generic_mkarchive 324#endif 325 326#ifndef bfd_elfNN_print_symbol 327#define bfd_elfNN_print_symbol bfd_elf_print_symbol 328#endif 329 330#ifndef elf_symbol_leading_char 331#define elf_symbol_leading_char 0 332#endif 333 334#ifndef elf_info_to_howto 335#define elf_info_to_howto 0 336#endif 337 338#ifndef elf_info_to_howto_rel 339#define elf_info_to_howto_rel 0 340#endif 341 342#ifndef elf_backend_arch_data 343#define elf_backend_arch_data NULL 344#endif 345 346#ifndef ELF_TARGET_ID 347#define ELF_TARGET_ID GENERIC_ELF_DATA 348#endif 349 350#ifndef ELF_OSABI 351#define ELF_OSABI ELFOSABI_NONE 352#endif 353 354#ifndef ELF_MAXPAGESIZE 355# error ELF_MAXPAGESIZE is not defined 356#define ELF_MAXPAGESIZE 1 357#endif 358 359#ifndef ELF_COMMONPAGESIZE 360#define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE 361#endif 362 363#ifndef ELF_MINPAGESIZE 364#define ELF_MINPAGESIZE ELF_COMMONPAGESIZE 365#endif 366 367#if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE 368# error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE 369#endif 370#if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE 371# error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE 372#endif 373 374#ifndef ELF_DYNAMIC_SEC_FLAGS 375/* Note that we set the SEC_IN_MEMORY flag for these sections. */ 376#define ELF_DYNAMIC_SEC_FLAGS \ 377 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS \ 378 | SEC_IN_MEMORY | SEC_LINKER_CREATED) 379#endif 380 381#ifndef elf_backend_collect 382#define elf_backend_collect FALSE 383#endif 384#ifndef elf_backend_type_change_ok 385#define elf_backend_type_change_ok FALSE 386#endif 387 388#ifndef elf_backend_sym_is_global 389#define elf_backend_sym_is_global 0 390#endif 391#ifndef elf_backend_object_p 392#define elf_backend_object_p 0 393#endif 394#ifndef elf_backend_symbol_processing 395#define elf_backend_symbol_processing 0 396#endif 397#ifndef elf_backend_symbol_table_processing 398#define elf_backend_symbol_table_processing 0 399#endif 400#ifndef elf_backend_get_symbol_type 401#define elf_backend_get_symbol_type 0 402#endif 403#ifndef elf_backend_archive_symbol_lookup 404#define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup 405#endif 406#ifndef elf_backend_name_local_section_symbols 407#define elf_backend_name_local_section_symbols 0 408#endif 409#ifndef elf_backend_section_processing 410#define elf_backend_section_processing 0 411#endif 412#ifndef elf_backend_section_from_shdr 413#define elf_backend_section_from_shdr _bfd_elf_make_section_from_shdr 414#endif 415#ifndef elf_backend_section_flags 416#define elf_backend_section_flags 0 417#endif 418#ifndef elf_backend_get_sec_type_attr 419#define elf_backend_get_sec_type_attr _bfd_elf_get_sec_type_attr 420#endif 421#ifndef elf_backend_section_from_phdr 422#define elf_backend_section_from_phdr _bfd_elf_make_section_from_phdr 423#endif 424#ifndef elf_backend_fake_sections 425#define elf_backend_fake_sections 0 426#endif 427#ifndef elf_backend_section_from_bfd_section 428#define elf_backend_section_from_bfd_section 0 429#endif 430#ifndef elf_backend_add_symbol_hook 431#define elf_backend_add_symbol_hook 0 432#endif 433#ifndef elf_backend_link_output_symbol_hook 434#define elf_backend_link_output_symbol_hook 0 435#endif 436#ifndef elf_backend_create_dynamic_sections 437#define elf_backend_create_dynamic_sections 0 438#endif 439#ifndef elf_backend_omit_section_dynsym 440#define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym 441#endif 442#ifndef elf_backend_relocs_compatible 443#define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible 444#endif 445#ifndef elf_backend_check_relocs 446#define elf_backend_check_relocs 0 447#endif 448#ifndef elf_backend_check_directives 449#define elf_backend_check_directives 0 450#endif 451#ifndef elf_backend_notice_as_needed 452#define elf_backend_notice_as_needed _bfd_elf_notice_as_needed 453#endif 454#ifndef elf_backend_adjust_dynamic_symbol 455#define elf_backend_adjust_dynamic_symbol 0 456#endif 457#ifndef elf_backend_always_size_sections 458#define elf_backend_always_size_sections 0 459#endif 460#ifndef elf_backend_size_dynamic_sections 461#define elf_backend_size_dynamic_sections 0 462#endif 463#ifndef elf_backend_init_index_section 464#define elf_backend_init_index_section \ 465 ((void (*) (bfd *, struct bfd_link_info *)) bfd_void) 466#endif 467#ifndef elf_backend_relocate_section 468#define elf_backend_relocate_section 0 469#endif 470#ifndef elf_backend_finish_dynamic_symbol 471#define elf_backend_finish_dynamic_symbol 0 472#endif 473#ifndef elf_backend_finish_dynamic_sections 474#define elf_backend_finish_dynamic_sections 0 475#endif 476#ifndef elf_backend_begin_write_processing 477#define elf_backend_begin_write_processing 0 478#endif 479#ifndef elf_backend_final_write_processing 480#define elf_backend_final_write_processing 0 481#endif 482#ifndef elf_backend_additional_program_headers 483#define elf_backend_additional_program_headers 0 484#endif 485#ifndef elf_backend_modify_segment_map 486#define elf_backend_modify_segment_map 0 487#endif 488#ifndef elf_backend_modify_program_headers 489#define elf_backend_modify_program_headers 0 490#endif 491#ifndef elf_backend_allow_non_load_phdr 492#define elf_backend_allow_non_load_phdr \ 493 ((bfd_boolean (*) (bfd *, const Elf_Internal_Phdr *, unsigned)) bfd_false) 494#endif 495#ifndef elf_backend_ecoff_debug_swap 496#define elf_backend_ecoff_debug_swap 0 497#endif 498#ifndef elf_backend_bfd_from_remote_memory 499#define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory 500#endif 501#ifndef elf_backend_got_header_size 502#define elf_backend_got_header_size 0 503#endif 504#ifndef elf_backend_got_elt_size 505#define elf_backend_got_elt_size _bfd_elf_default_got_elt_size 506#endif 507#ifndef elf_backend_obj_attrs_vendor 508#define elf_backend_obj_attrs_vendor NULL 509#endif 510#ifndef elf_backend_obj_attrs_section 511#define elf_backend_obj_attrs_section NULL 512#endif 513#ifndef elf_backend_obj_attrs_arg_type 514#define elf_backend_obj_attrs_arg_type NULL 515#endif 516#ifndef elf_backend_obj_attrs_section_type 517#define elf_backend_obj_attrs_section_type SHT_GNU_ATTRIBUTES 518#endif 519#ifndef elf_backend_obj_attrs_order 520#define elf_backend_obj_attrs_order NULL 521#endif 522#ifndef elf_backend_obj_attrs_handle_unknown 523#define elf_backend_obj_attrs_handle_unknown NULL 524#endif 525#ifndef elf_backend_static_tls_alignment 526#define elf_backend_static_tls_alignment 1 527#endif 528#ifndef elf_backend_post_process_headers 529#define elf_backend_post_process_headers _bfd_elf_post_process_headers 530#endif 531#ifndef elf_backend_print_symbol_all 532#define elf_backend_print_symbol_all NULL 533#endif 534#ifndef elf_backend_output_arch_local_syms 535#define elf_backend_output_arch_local_syms NULL 536#endif 537#ifndef elf_backend_output_arch_syms 538#define elf_backend_output_arch_syms NULL 539#endif 540#ifndef elf_backend_filter_implib_symbols 541#define elf_backend_filter_implib_symbols NULL 542#endif 543#ifndef elf_backend_copy_indirect_symbol 544#define elf_backend_copy_indirect_symbol _bfd_elf_link_hash_copy_indirect 545#endif 546#ifndef elf_backend_hide_symbol 547#define elf_backend_hide_symbol _bfd_elf_link_hash_hide_symbol 548#endif 549#ifndef elf_backend_fixup_symbol 550#define elf_backend_fixup_symbol NULL 551#endif 552#ifndef elf_backend_merge_symbol_attribute 553#define elf_backend_merge_symbol_attribute NULL 554#endif 555#ifndef elf_backend_get_target_dtag 556#define elf_backend_get_target_dtag NULL 557#endif 558#ifndef elf_backend_ignore_undef_symbol 559#define elf_backend_ignore_undef_symbol NULL 560#endif 561#ifndef elf_backend_emit_relocs 562#define elf_backend_emit_relocs _bfd_elf_link_output_relocs 563#endif 564#ifndef elf_backend_update_relocs 565#define elf_backend_update_relocs NULL 566#endif 567#ifndef elf_backend_count_relocs 568#define elf_backend_count_relocs NULL 569#endif 570#ifndef elf_backend_count_additional_relocs 571#define elf_backend_count_additional_relocs NULL 572#endif 573#ifndef elf_backend_sort_relocs_p 574#define elf_backend_sort_relocs_p NULL 575#endif 576#ifndef elf_backend_grok_prstatus 577#define elf_backend_grok_prstatus NULL 578#endif 579#ifndef elf_backend_grok_psinfo 580#define elf_backend_grok_psinfo NULL 581#endif 582#ifndef elf_backend_write_core_note 583#define elf_backend_write_core_note NULL 584#endif 585#ifndef elf_backend_lookup_section_flags_hook 586#define elf_backend_lookup_section_flags_hook NULL 587#endif 588#ifndef elf_backend_reloc_type_class 589#define elf_backend_reloc_type_class _bfd_elf_reloc_type_class 590#endif 591#ifndef elf_backend_discard_info 592#define elf_backend_discard_info NULL 593#endif 594#ifndef elf_backend_ignore_discarded_relocs 595#define elf_backend_ignore_discarded_relocs NULL 596#endif 597#ifndef elf_backend_action_discarded 598#define elf_backend_action_discarded _bfd_elf_default_action_discarded 599#endif 600#ifndef elf_backend_eh_frame_address_size 601#define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size 602#endif 603#ifndef elf_backend_can_make_relative_eh_frame 604#define elf_backend_can_make_relative_eh_frame _bfd_elf_can_make_relative 605#endif 606#ifndef elf_backend_can_make_lsda_relative_eh_frame 607#define elf_backend_can_make_lsda_relative_eh_frame _bfd_elf_can_make_relative 608#endif 609#ifndef elf_backend_encode_eh_address 610#define elf_backend_encode_eh_address _bfd_elf_encode_eh_address 611#endif 612#ifndef elf_backend_write_section 613#define elf_backend_write_section NULL 614#endif 615#ifndef elf_backend_mips_irix_compat 616#define elf_backend_mips_irix_compat NULL 617#endif 618#ifndef elf_backend_mips_rtype_to_howto 619#define elf_backend_mips_rtype_to_howto NULL 620#endif 621 622/* Previously, backends could only use SHT_REL or SHT_RELA relocation 623 sections, but not both. They defined USE_REL to indicate SHT_REL 624 sections, and left it undefined to indicated SHT_RELA sections. 625 For backwards compatibility, we still support this usage. */ 626#ifndef USE_REL 627#define USE_REL 0 628#endif 629 630/* Use these in new code. */ 631#ifndef elf_backend_may_use_rel_p 632#define elf_backend_may_use_rel_p USE_REL 633#endif 634#ifndef elf_backend_may_use_rela_p 635#define elf_backend_may_use_rela_p !USE_REL 636#endif 637#ifndef elf_backend_default_use_rela_p 638#define elf_backend_default_use_rela_p !USE_REL 639#endif 640#ifndef elf_backend_rela_plts_and_copies_p 641#define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p 642#endif 643 644#ifndef elf_backend_rela_normal 645#define elf_backend_rela_normal 0 646#endif 647 648#ifndef elf_backend_dtrel_excludes_plt 649#define elf_backend_dtrel_excludes_plt 0 650#endif 651 652#ifndef elf_backend_plt_sym_val 653#define elf_backend_plt_sym_val NULL 654#endif 655#ifndef elf_backend_relplt_name 656#define elf_backend_relplt_name NULL 657#endif 658 659#ifndef ELF_MACHINE_ALT1 660#define ELF_MACHINE_ALT1 0 661#endif 662 663#ifndef ELF_MACHINE_ALT2 664#define ELF_MACHINE_ALT2 0 665#endif 666 667#ifndef elf_backend_size_info 668#define elf_backend_size_info _bfd_elfNN_size_info 669#endif 670 671#ifndef elf_backend_special_sections 672#define elf_backend_special_sections NULL 673#endif 674 675#ifndef elf_backend_sign_extend_vma 676#define elf_backend_sign_extend_vma 0 677#endif 678 679#ifndef elf_backend_link_order_error_handler 680#define elf_backend_link_order_error_handler _bfd_error_handler 681#endif 682 683#ifndef elf_backend_common_definition 684#define elf_backend_common_definition _bfd_elf_common_definition 685#endif 686 687#ifndef elf_backend_common_section_index 688#define elf_backend_common_section_index _bfd_elf_common_section_index 689#endif 690 691#ifndef elf_backend_common_section 692#define elf_backend_common_section _bfd_elf_common_section 693#endif 694 695#ifndef elf_backend_merge_symbol 696#define elf_backend_merge_symbol NULL 697#endif 698 699#ifndef elf_backend_hash_symbol 700#define elf_backend_hash_symbol _bfd_elf_hash_symbol 701#endif 702 703#ifndef elf_backend_is_function_type 704#define elf_backend_is_function_type _bfd_elf_is_function_type 705#endif 706 707#ifndef elf_backend_maybe_function_sym 708#define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym 709#endif 710 711#ifndef elf_backend_get_reloc_section 712#define elf_backend_get_reloc_section _bfd_elf_get_reloc_section 713#endif 714 715#ifndef elf_backend_copy_special_section_fields 716#define elf_backend_copy_special_section_fields NULL 717#endif 718 719#ifndef elf_backend_compact_eh_encoding 720#define elf_backend_compact_eh_encoding NULL 721#endif 722 723#ifndef elf_backend_cant_unwind_opcode 724#define elf_backend_cant_unwind_opcode 0 725#endif 726 727#ifndef elf_match_priority 728#define elf_match_priority \ 729 (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0) 730#endif 731 732extern const struct elf_size_info _bfd_elfNN_size_info; 733 734static struct elf_backend_data elfNN_bed = 735{ 736 ELF_ARCH, /* arch */ 737 ELF_TARGET_ID, /* target_id */ 738 ELF_MACHINE_CODE, /* elf_machine_code */ 739 ELF_OSABI, /* elf_osabi */ 740 ELF_MAXPAGESIZE, /* maxpagesize */ 741 ELF_MINPAGESIZE, /* minpagesize */ 742 ELF_COMMONPAGESIZE, /* commonpagesize */ 743 ELF_DYNAMIC_SEC_FLAGS, /* dynamic_sec_flags */ 744 elf_backend_arch_data, 745 elf_info_to_howto, 746 elf_info_to_howto_rel, 747 elf_backend_sym_is_global, 748 elf_backend_object_p, 749 elf_backend_symbol_processing, 750 elf_backend_symbol_table_processing, 751 elf_backend_get_symbol_type, 752 elf_backend_archive_symbol_lookup, 753 elf_backend_name_local_section_symbols, 754 elf_backend_section_processing, 755 elf_backend_section_from_shdr, 756 elf_backend_section_flags, 757 elf_backend_get_sec_type_attr, 758 elf_backend_section_from_phdr, 759 elf_backend_fake_sections, 760 elf_backend_section_from_bfd_section, 761 elf_backend_add_symbol_hook, 762 elf_backend_link_output_symbol_hook, 763 elf_backend_create_dynamic_sections, 764 elf_backend_omit_section_dynsym, 765 elf_backend_relocs_compatible, 766 elf_backend_check_relocs, 767 elf_backend_check_directives, 768 elf_backend_notice_as_needed, 769 elf_backend_adjust_dynamic_symbol, 770 elf_backend_always_size_sections, 771 elf_backend_size_dynamic_sections, 772 elf_backend_init_index_section, 773 elf_backend_relocate_section, 774 elf_backend_finish_dynamic_symbol, 775 elf_backend_finish_dynamic_sections, 776 elf_backend_begin_write_processing, 777 elf_backend_final_write_processing, 778 elf_backend_additional_program_headers, 779 elf_backend_modify_segment_map, 780 elf_backend_modify_program_headers, 781 elf_backend_allow_non_load_phdr, 782 elf_backend_gc_keep, 783 elf_backend_gc_mark_dynamic_ref, 784 elf_backend_gc_mark_hook, 785 elf_backend_gc_mark_extra_sections, 786 elf_backend_gc_sweep_hook, 787 elf_backend_post_process_headers, 788 elf_backend_print_symbol_all, 789 elf_backend_output_arch_local_syms, 790 elf_backend_output_arch_syms, 791 elf_backend_filter_implib_symbols, 792 elf_backend_copy_indirect_symbol, 793 elf_backend_hide_symbol, 794 elf_backend_fixup_symbol, 795 elf_backend_merge_symbol_attribute, 796 elf_backend_get_target_dtag, 797 elf_backend_ignore_undef_symbol, 798 elf_backend_emit_relocs, 799 elf_backend_update_relocs, 800 elf_backend_count_relocs, 801 elf_backend_count_additional_relocs, 802 elf_backend_sort_relocs_p, 803 elf_backend_grok_prstatus, 804 elf_backend_grok_psinfo, 805 elf_backend_write_core_note, 806 elf_backend_lookup_section_flags_hook, 807 elf_backend_reloc_type_class, 808 elf_backend_discard_info, 809 elf_backend_ignore_discarded_relocs, 810 elf_backend_action_discarded, 811 elf_backend_eh_frame_address_size, 812 elf_backend_can_make_relative_eh_frame, 813 elf_backend_can_make_lsda_relative_eh_frame, 814 elf_backend_encode_eh_address, 815 elf_backend_write_section, 816 elf_backend_mips_irix_compat, 817 elf_backend_mips_rtype_to_howto, 818 elf_backend_ecoff_debug_swap, 819 elf_backend_bfd_from_remote_memory, 820 elf_backend_plt_sym_val, 821 elf_backend_common_definition, 822 elf_backend_common_section_index, 823 elf_backend_common_section, 824 elf_backend_merge_symbol, 825 elf_backend_hash_symbol, 826 elf_backend_is_function_type, 827 elf_backend_maybe_function_sym, 828 elf_backend_get_reloc_section, 829 elf_backend_copy_special_section_fields, 830 elf_backend_link_order_error_handler, 831 elf_backend_relplt_name, 832 ELF_MACHINE_ALT1, 833 ELF_MACHINE_ALT2, 834 &elf_backend_size_info, 835 elf_backend_special_sections, 836 elf_backend_got_header_size, 837 elf_backend_got_elt_size, 838 elf_backend_obj_attrs_vendor, 839 elf_backend_obj_attrs_section, 840 elf_backend_obj_attrs_arg_type, 841 elf_backend_obj_attrs_section_type, 842 elf_backend_obj_attrs_order, 843 elf_backend_obj_attrs_handle_unknown, 844 elf_backend_compact_eh_encoding, 845 elf_backend_cant_unwind_opcode, 846 elf_backend_static_tls_alignment, 847 elf_backend_stack_align, 848 elf_backend_strtab_flags, 849 elf_backend_collect, 850 elf_backend_type_change_ok, 851 elf_backend_may_use_rel_p, 852 elf_backend_may_use_rela_p, 853 elf_backend_default_use_rela_p, 854 elf_backend_rela_plts_and_copies_p, 855 elf_backend_rela_normal, 856 elf_backend_dtrel_excludes_plt, 857 elf_backend_sign_extend_vma, 858 elf_backend_want_got_plt, 859 elf_backend_plt_readonly, 860 elf_backend_want_plt_sym, 861 elf_backend_plt_not_loaded, 862 elf_backend_plt_alignment, 863 elf_backend_can_gc_sections, 864 elf_backend_can_refcount, 865 elf_backend_want_got_sym, 866 elf_backend_want_dynbss, 867 elf_backend_want_dynrelro, 868 elf_backend_want_p_paddr_set_to_zero, 869 elf_backend_no_page_alias, 870 elf_backend_default_execstack, 871 elf_backend_caches_rawsize, 872 elf_backend_extern_protected_data, 873 elf_backend_always_renumber_dynsyms 874}; 875 876/* Forward declaration for use when initialising alternative_target field. */ 877#ifdef TARGET_LITTLE_SYM 878extern const bfd_target TARGET_LITTLE_SYM; 879#endif 880 881#ifdef TARGET_BIG_SYM 882const bfd_target TARGET_BIG_SYM = 883{ 884 /* name: identify kind of target */ 885 TARGET_BIG_NAME, 886 887 /* flavour: general indication about file */ 888 bfd_target_elf_flavour, 889 890 /* byteorder: data is big endian */ 891 BFD_ENDIAN_BIG, 892 893 /* header_byteorder: header is also big endian */ 894 BFD_ENDIAN_BIG, 895 896 /* object_flags: mask of all file flags */ 897 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS 898 | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS 899 | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON), 900 901 /* section_flags: mask of all section flags */ 902 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY 903 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES 904 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP), 905 906 /* leading_symbol_char: is the first char of a user symbol 907 predictable, and if so what is it */ 908 elf_symbol_leading_char, 909 910 /* ar_pad_char: pad character for filenames within an archive header 911 FIXME: this really has nothing to do with ELF, this is a characteristic 912 of the archiver and/or os and should be independently tunable */ 913 '/', 914 915 /* ar_max_namelen: maximum number of characters in an archive header 916 FIXME: this really has nothing to do with ELF, this is a characteristic 917 of the archiver and should be independently tunable. The System V ABI, 918 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */ 919 15, 920 921 elf_match_priority, 922 923 /* Routines to byte-swap various sized integers from the data sections */ 924 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 925 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 926 bfd_getb16, bfd_getb_signed_16, bfd_putb16, 927 928 /* Routines to byte-swap various sized integers from the file headers */ 929 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 930 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 931 bfd_getb16, bfd_getb_signed_16, bfd_putb16, 932 933 /* bfd_check_format: check the format of a file being read */ 934 { _bfd_dummy_target, /* unknown format */ 935 bfd_elfNN_object_p, /* assembler/linker output (object file) */ 936 bfd_elfNN_archive_p, /* an archive */ 937 bfd_elfNN_core_file_p /* a core file */ 938 }, 939 940 /* bfd_set_format: set the format of a file being written */ 941 { bfd_false, 942 bfd_elfNN_mkobject, 943 bfd_elfNN_mkarchive, 944 bfd_elfNN_mkcorefile 945 }, 946 947 /* bfd_write_contents: write cached information into a file being written */ 948 { bfd_false, 949 bfd_elfNN_write_object_contents, 950 bfd_elfNN_write_archive_contents, 951 bfd_elfNN_write_corefile_contents, 952 }, 953 954 BFD_JUMP_TABLE_GENERIC (bfd_elfNN), 955 BFD_JUMP_TABLE_COPY (bfd_elfNN), 956 BFD_JUMP_TABLE_CORE (bfd_elfNN), 957#ifdef bfd_elfNN_archive_functions 958 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive), 959#elif defined USE_64_BIT_ARCHIVE 960 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit), 961#else 962 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), 963#endif 964 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN), 965 BFD_JUMP_TABLE_RELOCS (bfd_elfNN), 966 BFD_JUMP_TABLE_WRITE (bfd_elfNN), 967 BFD_JUMP_TABLE_LINK (bfd_elfNN), 968 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN), 969 970 /* Alternative endian target. */ 971#ifdef TARGET_LITTLE_SYM 972 & TARGET_LITTLE_SYM, 973#else 974 NULL, 975#endif 976 977 /* backend_data: */ 978 &elfNN_bed 979}; 980#endif 981 982#ifdef TARGET_LITTLE_SYM 983const bfd_target TARGET_LITTLE_SYM = 984{ 985 /* name: identify kind of target */ 986 TARGET_LITTLE_NAME, 987 988 /* flavour: general indication about file */ 989 bfd_target_elf_flavour, 990 991 /* byteorder: data is little endian */ 992 BFD_ENDIAN_LITTLE, 993 994 /* header_byteorder: header is also little endian */ 995 BFD_ENDIAN_LITTLE, 996 997 /* object_flags: mask of all file flags */ 998 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS 999 | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS 1000 | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON), 1001 1002 /* section_flags: mask of all section flags */ 1003 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY 1004 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES 1005 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP), 1006 1007 /* leading_symbol_char: is the first char of a user symbol 1008 predictable, and if so what is it */ 1009 elf_symbol_leading_char, 1010 1011 /* ar_pad_char: pad character for filenames within an archive header 1012 FIXME: this really has nothing to do with ELF, this is a characteristic 1013 of the archiver and/or os and should be independently tunable */ 1014 '/', 1015 1016 /* ar_max_namelen: maximum number of characters in an archive header 1017 FIXME: this really has nothing to do with ELF, this is a characteristic 1018 of the archiver and should be independently tunable. The System V ABI, 1019 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */ 1020 15, 1021 1022 elf_match_priority, 1023 1024 /* Routines to byte-swap various sized integers from the data sections */ 1025 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 1026 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 1027 bfd_getl16, bfd_getl_signed_16, bfd_putl16, 1028 1029 /* Routines to byte-swap various sized integers from the file headers */ 1030 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 1031 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 1032 bfd_getl16, bfd_getl_signed_16, bfd_putl16, 1033 1034 /* bfd_check_format: check the format of a file being read */ 1035 { _bfd_dummy_target, /* unknown format */ 1036 bfd_elfNN_object_p, /* assembler/linker output (object file) */ 1037 bfd_elfNN_archive_p, /* an archive */ 1038 bfd_elfNN_core_file_p /* a core file */ 1039 }, 1040 1041 /* bfd_set_format: set the format of a file being written */ 1042 { bfd_false, 1043 bfd_elfNN_mkobject, 1044 bfd_elfNN_mkarchive, 1045 bfd_elfNN_mkcorefile 1046 }, 1047 1048 /* bfd_write_contents: write cached information into a file being written */ 1049 { bfd_false, 1050 bfd_elfNN_write_object_contents, 1051 bfd_elfNN_write_archive_contents, 1052 bfd_elfNN_write_corefile_contents, 1053 }, 1054 1055 BFD_JUMP_TABLE_GENERIC (bfd_elfNN), 1056 BFD_JUMP_TABLE_COPY (bfd_elfNN), 1057 BFD_JUMP_TABLE_CORE (bfd_elfNN), 1058#ifdef bfd_elfNN_archive_functions 1059 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive), 1060#elif defined USE_64_BIT_ARCHIVE 1061 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit), 1062#else 1063 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), 1064#endif 1065 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN), 1066 BFD_JUMP_TABLE_RELOCS (bfd_elfNN), 1067 BFD_JUMP_TABLE_WRITE (bfd_elfNN), 1068 BFD_JUMP_TABLE_LINK (bfd_elfNN), 1069 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN), 1070 1071 /* Alternative endian target. */ 1072#ifdef TARGET_BIG_SYM 1073 & TARGET_BIG_SYM, 1074#else 1075 NULL, 1076#endif 1077 1078 /* backend_data: */ 1079 &elfNN_bed 1080}; 1081#endif 1082