[binutils, ARM, 8/16] BFL infrastructure with new global reloc R_ARM_THM_BF18
[binutils-gdb.git] / bfd / elfxx-target.h
blobe4e75462433ed31798e95805555194485de15b70
1 /* Target definitions for NN-bit ELF
2 Copyright (C) 1993-2019 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
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.
27 There are two such structures here: one for big-endian machines and
28 one for little-endian machines. */
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
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_set_reloc
50 #define bfd_elfNN_set_reloc _bfd_generic_set_reloc
51 #endif
52 #ifndef bfd_elfNN_find_nearest_line
53 #define bfd_elfNN_find_nearest_line _bfd_elf_find_nearest_line
54 #endif
55 #ifndef bfd_elfNN_find_line
56 #define bfd_elfNN_find_line _bfd_elf_find_line
57 #endif
58 #ifndef bfd_elfNN_find_inliner_info
59 #define bfd_elfNN_find_inliner_info _bfd_elf_find_inliner_info
60 #endif
61 #define bfd_elfNN_read_minisymbols _bfd_elf_read_minisymbols
62 #define bfd_elfNN_minisymbol_to_symbol _bfd_elf_minisymbol_to_symbol
63 #define bfd_elfNN_get_dynamic_symtab_upper_bound \
64 _bfd_elf_get_dynamic_symtab_upper_bound
65 #define bfd_elfNN_get_lineno _bfd_elf_get_lineno
66 #ifndef bfd_elfNN_get_reloc_upper_bound
67 #define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound
68 #endif
69 #ifndef bfd_elfNN_get_symbol_info
70 #define bfd_elfNN_get_symbol_info _bfd_elf_get_symbol_info
71 #endif
72 #ifndef bfd_elfNN_get_symbol_version_string
73 #define bfd_elfNN_get_symbol_version_string \
74 _bfd_elf_get_symbol_version_string
75 #endif
76 #define bfd_elfNN_canonicalize_symtab _bfd_elf_canonicalize_symtab
77 #define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound
78 #define bfd_elfNN_make_empty_symbol _bfd_elf_make_empty_symbol
79 #ifndef bfd_elfNN_new_section_hook
80 #define bfd_elfNN_new_section_hook _bfd_elf_new_section_hook
81 #endif
82 #define bfd_elfNN_set_arch_mach _bfd_elf_set_arch_mach
83 #ifndef bfd_elfNN_set_section_contents
84 #define bfd_elfNN_set_section_contents _bfd_elf_set_section_contents
85 #endif
86 #define bfd_elfNN_sizeof_headers _bfd_elf_sizeof_headers
87 #define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents
88 #define bfd_elfNN_write_corefile_contents _bfd_elf_write_corefile_contents
90 #define bfd_elfNN_get_section_contents_in_window \
91 _bfd_generic_get_section_contents_in_window
93 #ifndef elf_backend_can_refcount
94 #define elf_backend_can_refcount 0
95 #endif
96 #ifndef elf_backend_want_got_plt
97 #define elf_backend_want_got_plt 0
98 #endif
99 #ifndef elf_backend_plt_readonly
100 #define elf_backend_plt_readonly 0
101 #endif
102 #ifndef elf_backend_want_plt_sym
103 #define elf_backend_want_plt_sym 0
104 #endif
105 #ifndef elf_backend_plt_not_loaded
106 #define elf_backend_plt_not_loaded 0
107 #endif
108 #ifndef elf_backend_plt_alignment
109 #define elf_backend_plt_alignment 2
110 #endif
111 #ifndef elf_backend_want_dynbss
112 #define elf_backend_want_dynbss 1
113 #endif
114 #ifndef elf_backend_want_dynrelro
115 #define elf_backend_want_dynrelro 0
116 #endif
117 #ifndef elf_backend_want_p_paddr_set_to_zero
118 #define elf_backend_want_p_paddr_set_to_zero 0
119 #endif
120 #ifndef elf_backend_no_page_alias
121 #define elf_backend_no_page_alias 0
122 #endif
123 #ifndef elf_backend_default_execstack
124 #define elf_backend_default_execstack 1
125 #endif
126 #ifndef elf_backend_caches_rawsize
127 #define elf_backend_caches_rawsize 0
128 #endif
129 #ifndef elf_backend_extern_protected_data
130 #define elf_backend_extern_protected_data 0
131 #endif
132 #ifndef elf_backend_always_renumber_dynsyms
133 #define elf_backend_always_renumber_dynsyms FALSE
134 #endif
135 #ifndef elf_backend_linux_prpsinfo32_ugid16
136 #define elf_backend_linux_prpsinfo32_ugid16 FALSE
137 #endif
138 #ifndef elf_backend_linux_prpsinfo64_ugid16
139 #define elf_backend_linux_prpsinfo64_ugid16 FALSE
140 #endif
141 #ifndef elf_backend_stack_align
142 #define elf_backend_stack_align 16
143 #endif
144 #ifndef elf_backend_strtab_flags
145 #define elf_backend_strtab_flags 0
146 #endif
148 #define bfd_elfNN_bfd_debug_info_start _bfd_void_bfd
149 #define bfd_elfNN_bfd_debug_info_end _bfd_void_bfd
150 #define bfd_elfNN_bfd_debug_info_accumulate _bfd_void_bfd_asection
152 #ifndef bfd_elfNN_bfd_get_relocated_section_contents
153 #define bfd_elfNN_bfd_get_relocated_section_contents \
154 bfd_generic_get_relocated_section_contents
155 #endif
157 #ifndef bfd_elfNN_bfd_relax_section
158 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
159 #endif
161 #ifndef elf_backend_can_gc_sections
162 #define elf_backend_can_gc_sections 0
163 #endif
164 #ifndef elf_backend_can_refcount
165 #define elf_backend_can_refcount 0
166 #endif
167 #ifndef elf_backend_want_got_sym
168 #define elf_backend_want_got_sym 1
169 #endif
170 #ifndef elf_backend_gc_keep
171 #define elf_backend_gc_keep _bfd_elf_gc_keep
172 #endif
173 #ifndef elf_backend_gc_mark_dynamic_ref
174 #define elf_backend_gc_mark_dynamic_ref bfd_elf_gc_mark_dynamic_ref_symbol
175 #endif
176 #ifndef elf_backend_gc_mark_hook
177 #define elf_backend_gc_mark_hook _bfd_elf_gc_mark_hook
178 #endif
179 #ifndef elf_backend_gc_mark_extra_sections
180 #define elf_backend_gc_mark_extra_sections _bfd_elf_gc_mark_extra_sections
181 #endif
182 #ifndef bfd_elfNN_bfd_gc_sections
183 #define bfd_elfNN_bfd_gc_sections bfd_elf_gc_sections
184 #endif
186 #ifndef bfd_elfNN_bfd_merge_sections
187 #define bfd_elfNN_bfd_merge_sections \
188 _bfd_elf_merge_sections
189 #endif
191 #ifndef bfd_elfNN_bfd_is_group_section
192 #define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section
193 #endif
195 #ifndef bfd_elfNN_bfd_discard_group
196 #define bfd_elfNN_bfd_discard_group bfd_generic_discard_group
197 #endif
199 #ifndef bfd_elfNN_section_already_linked
200 #define bfd_elfNN_section_already_linked \
201 _bfd_elf_section_already_linked
202 #endif
204 #ifndef bfd_elfNN_bfd_define_common_symbol
205 #define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol
206 #endif
208 #ifndef bfd_elfNN_bfd_link_hide_symbol
209 #define bfd_elfNN_bfd_link_hide_symbol _bfd_elf_link_hide_symbol
210 #endif
212 #ifndef bfd_elfNN_bfd_lookup_section_flags
213 #define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags
214 #endif
216 #ifndef bfd_elfNN_bfd_make_debug_symbol
217 #define bfd_elfNN_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
218 #endif
220 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
221 #define bfd_elfNN_bfd_copy_private_symbol_data \
222 _bfd_elf_copy_private_symbol_data
223 #endif
225 #ifndef bfd_elfNN_bfd_copy_private_section_data
226 #define bfd_elfNN_bfd_copy_private_section_data \
227 _bfd_elf_copy_private_section_data
228 #endif
229 #ifndef bfd_elfNN_bfd_copy_private_header_data
230 #define bfd_elfNN_bfd_copy_private_header_data \
231 _bfd_elf_copy_private_header_data
232 #endif
233 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
234 #define bfd_elfNN_bfd_copy_private_bfd_data \
235 _bfd_elf_copy_private_bfd_data
236 #endif
237 #ifndef bfd_elfNN_bfd_print_private_bfd_data
238 #define bfd_elfNN_bfd_print_private_bfd_data \
239 _bfd_elf_print_private_bfd_data
240 #endif
241 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
242 #define bfd_elfNN_bfd_merge_private_bfd_data _bfd_bool_bfd_link_true
243 #endif
244 #ifndef bfd_elfNN_bfd_set_private_flags
245 #define bfd_elfNN_bfd_set_private_flags _bfd_bool_bfd_uint_true
246 #endif
247 #ifndef bfd_elfNN_bfd_is_local_label_name
248 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
249 #endif
250 #ifndef bfd_elfNN_bfd_is_target_special_symbol
251 #define bfd_elfNN_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
252 #endif
254 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
255 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
256 _bfd_elf_get_dynamic_reloc_upper_bound
257 #endif
258 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
259 #define bfd_elfNN_canonicalize_dynamic_reloc \
260 _bfd_elf_canonicalize_dynamic_reloc
261 #endif
263 #ifdef elf_backend_relocate_section
264 #ifndef bfd_elfNN_bfd_link_hash_table_create
265 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
266 #endif
267 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
268 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
269 _bfd_elf_copy_link_hash_symbol_type
270 #endif
271 #ifndef bfd_elfNN_bfd_link_add_symbols
272 #define bfd_elfNN_bfd_link_add_symbols bfd_elf_link_add_symbols
273 #endif
274 #ifndef bfd_elfNN_bfd_define_start_stop
275 #define bfd_elfNN_bfd_define_start_stop bfd_elf_define_start_stop
276 #endif
277 #ifndef bfd_elfNN_bfd_final_link
278 #define bfd_elfNN_bfd_final_link bfd_elf_final_link
279 #endif
280 #else /* ! defined (elf_backend_relocate_section) */
281 /* If no backend relocate_section routine, use the generic linker.
282 Note - this will prevent the port from being able to use some of
283 the other features of the ELF linker, because the generic hash structure
284 does not have the fields needed by the ELF linker. In particular it
285 means that linking directly to S-records will not work. */
286 #ifndef bfd_elfNN_bfd_link_hash_table_create
287 #define bfd_elfNN_bfd_link_hash_table_create \
288 _bfd_generic_link_hash_table_create
289 #endif
290 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
291 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
292 _bfd_generic_copy_link_hash_symbol_type
293 #endif
294 #ifndef bfd_elfNN_bfd_link_add_symbols
295 #define bfd_elfNN_bfd_link_add_symbols _bfd_generic_link_add_symbols
296 #endif
297 #ifndef bfd_elfNN_bfd_define_start_stop
298 #define bfd_elfNN_bfd_define_start_stop bfd_generic_define_start_stop
299 #endif
300 #ifndef bfd_elfNN_bfd_final_link
301 #define bfd_elfNN_bfd_final_link _bfd_generic_final_link
302 #endif
303 #endif /* ! defined (elf_backend_relocate_section) */
305 #ifndef bfd_elfNN_bfd_link_just_syms
306 #define bfd_elfNN_bfd_link_just_syms _bfd_elf_link_just_syms
307 #endif
309 #ifndef bfd_elfNN_bfd_link_split_section
310 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
311 #endif
313 #ifndef bfd_elfNN_bfd_link_check_relocs
314 #define bfd_elfNN_bfd_link_check_relocs _bfd_elf_link_check_relocs
315 #endif
317 #ifndef bfd_elfNN_archive_p
318 #define bfd_elfNN_archive_p bfd_generic_archive_p
319 #endif
321 #ifndef bfd_elfNN_write_archive_contents
322 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
323 #endif
325 #ifndef bfd_elfNN_mkobject
326 #define bfd_elfNN_mkobject bfd_elf_make_object
327 #endif
329 #ifndef bfd_elfNN_mkcorefile
330 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
331 #endif
333 #ifndef bfd_elfNN_mkarchive
334 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
335 #endif
337 #ifndef bfd_elfNN_print_symbol
338 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
339 #endif
341 #ifndef elf_symbol_leading_char
342 #define elf_symbol_leading_char 0
343 #endif
345 #ifndef elf_info_to_howto
346 #define elf_info_to_howto NULL
347 #endif
349 #ifndef elf_info_to_howto_rel
350 #define elf_info_to_howto_rel NULL
351 #endif
353 #ifndef elf_backend_arch_data
354 #define elf_backend_arch_data NULL
355 #endif
357 #ifndef ELF_TARGET_ID
358 #define ELF_TARGET_ID GENERIC_ELF_DATA
359 #endif
361 #ifndef ELF_OSABI
362 #define ELF_OSABI ELFOSABI_NONE
363 #endif
365 #ifndef ELF_MAXPAGESIZE
366 # error ELF_MAXPAGESIZE is not defined
367 #define ELF_MAXPAGESIZE 1
368 #endif
370 #ifndef ELF_COMMONPAGESIZE
371 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
372 #endif
374 #ifndef ELF_RELROPAGESIZE
375 #define ELF_RELROPAGESIZE ELF_COMMONPAGESIZE
376 #endif
378 #ifndef ELF_MINPAGESIZE
379 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
380 #endif
382 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
383 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
384 #endif
385 #if ELF_RELROPAGESIZE > ELF_MAXPAGESIZE
386 # error ELF_RELROPAGESIZE > ELF_MAXPAGESIZE
387 #endif
388 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
389 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
390 #endif
391 #if ELF_MINPAGESIZE > ELF_RELROPAGESIZE
392 # error ELF_MINPAGESIZE > ELF_RELROPAGESIZE
393 #endif
395 #ifndef ELF_DYNAMIC_SEC_FLAGS
396 /* Note that we set the SEC_IN_MEMORY flag for these sections. */
397 #define ELF_DYNAMIC_SEC_FLAGS \
398 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS \
399 | SEC_IN_MEMORY | SEC_LINKER_CREATED)
400 #endif
402 #ifndef elf_backend_collect
403 #define elf_backend_collect FALSE
404 #endif
405 #ifndef elf_backend_type_change_ok
406 #define elf_backend_type_change_ok FALSE
407 #endif
409 #ifndef elf_backend_sym_is_global
410 #define elf_backend_sym_is_global 0
411 #endif
412 #ifndef elf_backend_object_p
413 #define elf_backend_object_p 0
414 #endif
415 #ifndef elf_backend_symbol_processing
416 #define elf_backend_symbol_processing 0
417 #endif
418 #ifndef elf_backend_symbol_table_processing
419 #define elf_backend_symbol_table_processing 0
420 #endif
421 #ifndef elf_backend_get_symbol_type
422 #define elf_backend_get_symbol_type 0
423 #endif
424 #ifndef elf_backend_archive_symbol_lookup
425 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
426 #endif
427 #ifndef elf_backend_name_local_section_symbols
428 #define elf_backend_name_local_section_symbols 0
429 #endif
430 #ifndef elf_backend_section_processing
431 #define elf_backend_section_processing 0
432 #endif
433 #ifndef elf_backend_section_from_shdr
434 #define elf_backend_section_from_shdr _bfd_elf_make_section_from_shdr
435 #endif
436 #ifndef elf_backend_section_flags
437 #define elf_backend_section_flags 0
438 #endif
439 #ifndef elf_backend_get_sec_type_attr
440 #define elf_backend_get_sec_type_attr _bfd_elf_get_sec_type_attr
441 #endif
442 #ifndef elf_backend_section_from_phdr
443 #define elf_backend_section_from_phdr _bfd_elf_make_section_from_phdr
444 #endif
445 #ifndef elf_backend_fake_sections
446 #define elf_backend_fake_sections 0
447 #endif
448 #ifndef elf_backend_section_from_bfd_section
449 #define elf_backend_section_from_bfd_section 0
450 #endif
451 #ifndef elf_backend_add_symbol_hook
452 #define elf_backend_add_symbol_hook 0
453 #endif
454 #ifndef elf_backend_link_output_symbol_hook
455 #define elf_backend_link_output_symbol_hook 0
456 #endif
457 #ifndef elf_backend_create_dynamic_sections
458 #define elf_backend_create_dynamic_sections 0
459 #endif
460 #ifndef elf_backend_omit_section_dynsym
461 #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_default
462 #endif
463 #ifndef elf_backend_relocs_compatible
464 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
465 #endif
466 #ifndef elf_backend_check_relocs
467 #define elf_backend_check_relocs 0
468 #endif
469 #ifndef elf_backend_check_directives
470 #define elf_backend_check_directives 0
471 #endif
472 #ifndef elf_backend_notice_as_needed
473 #define elf_backend_notice_as_needed _bfd_elf_notice_as_needed
474 #endif
475 #ifndef elf_backend_adjust_dynamic_symbol
476 #define elf_backend_adjust_dynamic_symbol 0
477 #endif
478 #ifndef elf_backend_always_size_sections
479 #define elf_backend_always_size_sections 0
480 #endif
481 #ifndef elf_backend_size_dynamic_sections
482 #define elf_backend_size_dynamic_sections 0
483 #endif
484 #ifndef elf_backend_init_index_section
485 #define elf_backend_init_index_section _bfd_void_bfd_link
486 #endif
487 #ifndef elf_backend_relocate_section
488 #define elf_backend_relocate_section 0
489 #endif
490 #ifndef elf_backend_finish_dynamic_symbol
491 #define elf_backend_finish_dynamic_symbol 0
492 #endif
493 #ifndef elf_backend_finish_dynamic_sections
494 #define elf_backend_finish_dynamic_sections 0
495 #endif
496 #ifndef elf_backend_begin_write_processing
497 #define elf_backend_begin_write_processing 0
498 #endif
499 #ifndef elf_backend_final_write_processing
500 #define elf_backend_final_write_processing 0
501 #endif
502 #ifndef elf_backend_additional_program_headers
503 #define elf_backend_additional_program_headers 0
504 #endif
505 #ifndef elf_backend_modify_segment_map
506 #define elf_backend_modify_segment_map 0
507 #endif
508 #ifndef elf_backend_modify_program_headers
509 #define elf_backend_modify_program_headers 0
510 #endif
511 #ifndef elf_backend_allow_non_load_phdr
512 #define elf_backend_allow_non_load_phdr 0
513 #endif
514 #ifndef elf_backend_ecoff_debug_swap
515 #define elf_backend_ecoff_debug_swap 0
516 #endif
517 #ifndef elf_backend_bfd_from_remote_memory
518 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
519 #endif
520 #ifndef elf_backend_got_header_size
521 #define elf_backend_got_header_size 0
522 #endif
523 #ifndef elf_backend_got_elt_size
524 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
525 #endif
526 #ifndef elf_backend_obj_attrs_vendor
527 #define elf_backend_obj_attrs_vendor NULL
528 #endif
529 #ifndef elf_backend_obj_attrs_section
530 #define elf_backend_obj_attrs_section NULL
531 #endif
532 #ifndef elf_backend_obj_attrs_arg_type
533 #define elf_backend_obj_attrs_arg_type NULL
534 #endif
535 #ifndef elf_backend_obj_attrs_section_type
536 #define elf_backend_obj_attrs_section_type SHT_GNU_ATTRIBUTES
537 #endif
538 #ifndef elf_backend_obj_attrs_order
539 #define elf_backend_obj_attrs_order NULL
540 #endif
541 #ifndef elf_backend_obj_attrs_handle_unknown
542 #define elf_backend_obj_attrs_handle_unknown NULL
543 #endif
544 #ifndef elf_backend_parse_gnu_properties
545 #define elf_backend_parse_gnu_properties NULL
546 #endif
547 #ifndef elf_backend_merge_gnu_properties
548 #define elf_backend_merge_gnu_properties NULL
549 #endif
550 #ifndef elf_backend_setup_gnu_properties
551 #define elf_backend_setup_gnu_properties _bfd_elf_link_setup_gnu_properties
552 #endif
553 #ifndef elf_backend_fixup_gnu_properties
554 #define elf_backend_fixup_gnu_properties NULL
555 #endif
556 #ifndef elf_backend_static_tls_alignment
557 #define elf_backend_static_tls_alignment 1
558 #endif
559 #ifndef elf_backend_post_process_headers
560 #define elf_backend_post_process_headers _bfd_elf_post_process_headers
561 #endif
562 #ifndef elf_backend_print_symbol_all
563 #define elf_backend_print_symbol_all NULL
564 #endif
565 #ifndef elf_backend_output_arch_local_syms
566 #define elf_backend_output_arch_local_syms NULL
567 #endif
568 #ifndef elf_backend_output_arch_syms
569 #define elf_backend_output_arch_syms NULL
570 #endif
571 #ifndef elf_backend_filter_implib_symbols
572 #define elf_backend_filter_implib_symbols NULL
573 #endif
574 #ifndef elf_backend_copy_indirect_symbol
575 #define elf_backend_copy_indirect_symbol _bfd_elf_link_hash_copy_indirect
576 #endif
577 #ifndef elf_backend_hide_symbol
578 #define elf_backend_hide_symbol _bfd_elf_link_hash_hide_symbol
579 #endif
580 #ifndef elf_backend_fixup_symbol
581 #define elf_backend_fixup_symbol NULL
582 #endif
583 #ifndef elf_backend_merge_symbol_attribute
584 #define elf_backend_merge_symbol_attribute NULL
585 #endif
586 #ifndef elf_backend_get_target_dtag
587 #define elf_backend_get_target_dtag NULL
588 #endif
589 #ifndef elf_backend_ignore_undef_symbol
590 #define elf_backend_ignore_undef_symbol NULL
591 #endif
592 #ifndef elf_backend_emit_relocs
593 #define elf_backend_emit_relocs _bfd_elf_link_output_relocs
594 #endif
595 #ifndef elf_backend_update_relocs
596 #define elf_backend_update_relocs NULL
597 #endif
598 #ifndef elf_backend_count_relocs
599 #define elf_backend_count_relocs NULL
600 #endif
601 #ifndef elf_backend_count_additional_relocs
602 #define elf_backend_count_additional_relocs NULL
603 #endif
604 #ifndef elf_backend_sort_relocs_p
605 #define elf_backend_sort_relocs_p NULL
606 #endif
607 #ifndef elf_backend_grok_prstatus
608 #define elf_backend_grok_prstatus NULL
609 #endif
610 #ifndef elf_backend_grok_psinfo
611 #define elf_backend_grok_psinfo NULL
612 #endif
613 #ifndef elf_backend_grok_freebsd_prstatus
614 #define elf_backend_grok_freebsd_prstatus NULL
615 #endif
616 #ifndef elf_backend_write_core_note
617 #define elf_backend_write_core_note NULL
618 #endif
619 #ifndef elf_backend_lookup_section_flags_hook
620 #define elf_backend_lookup_section_flags_hook NULL
621 #endif
622 #ifndef elf_backend_reloc_type_class
623 #define elf_backend_reloc_type_class _bfd_elf_reloc_type_class
624 #endif
625 #ifndef elf_backend_discard_info
626 #define elf_backend_discard_info NULL
627 #endif
628 #ifndef elf_backend_ignore_discarded_relocs
629 #define elf_backend_ignore_discarded_relocs NULL
630 #endif
631 #ifndef elf_backend_action_discarded
632 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
633 #endif
634 #ifndef elf_backend_eh_frame_address_size
635 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
636 #endif
637 #ifndef elf_backend_can_make_relative_eh_frame
638 #define elf_backend_can_make_relative_eh_frame _bfd_elf_can_make_relative
639 #endif
640 #ifndef elf_backend_can_make_lsda_relative_eh_frame
641 #define elf_backend_can_make_lsda_relative_eh_frame _bfd_elf_can_make_relative
642 #endif
643 #ifndef elf_backend_encode_eh_address
644 #define elf_backend_encode_eh_address _bfd_elf_encode_eh_address
645 #endif
646 #ifndef elf_backend_write_section
647 #define elf_backend_write_section NULL
648 #endif
649 #ifndef elf_backend_mips_irix_compat
650 #define elf_backend_mips_irix_compat NULL
651 #endif
652 #ifndef elf_backend_mips_rtype_to_howto
653 #define elf_backend_mips_rtype_to_howto NULL
654 #endif
656 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
657 sections, but not both. They defined USE_REL to indicate SHT_REL
658 sections, and left it undefined to indicated SHT_RELA sections.
659 For backwards compatibility, we still support this usage. */
660 #ifndef USE_REL
661 #define USE_REL 0
662 #endif
664 /* Use these in new code. */
665 #ifndef elf_backend_may_use_rel_p
666 #define elf_backend_may_use_rel_p USE_REL
667 #endif
668 #ifndef elf_backend_may_use_rela_p
669 #define elf_backend_may_use_rela_p !USE_REL
670 #endif
671 #ifndef elf_backend_default_use_rela_p
672 #define elf_backend_default_use_rela_p !USE_REL
673 #endif
674 #ifndef elf_backend_rela_plts_and_copies_p
675 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
676 #endif
678 #ifndef elf_backend_rela_normal
679 #define elf_backend_rela_normal 0
680 #endif
682 #ifndef elf_backend_dtrel_excludes_plt
683 #define elf_backend_dtrel_excludes_plt 0
684 #endif
686 #ifndef elf_backend_plt_sym_val
687 #define elf_backend_plt_sym_val NULL
688 #endif
689 #ifndef elf_backend_relplt_name
690 #define elf_backend_relplt_name NULL
691 #endif
693 #ifndef ELF_MACHINE_ALT1
694 #define ELF_MACHINE_ALT1 0
695 #endif
697 #ifndef ELF_MACHINE_ALT2
698 #define ELF_MACHINE_ALT2 0
699 #endif
701 #ifndef elf_backend_size_info
702 #define elf_backend_size_info _bfd_elfNN_size_info
703 #endif
705 #ifndef elf_backend_special_sections
706 #define elf_backend_special_sections NULL
707 #endif
709 #ifndef elf_backend_sign_extend_vma
710 #define elf_backend_sign_extend_vma 0
711 #endif
713 #ifndef elf_backend_link_order_error_handler
714 #define elf_backend_link_order_error_handler _bfd_error_handler
715 #endif
717 #ifndef elf_backend_common_definition
718 #define elf_backend_common_definition _bfd_elf_common_definition
719 #endif
721 #ifndef elf_backend_common_section_index
722 #define elf_backend_common_section_index _bfd_elf_common_section_index
723 #endif
725 #ifndef elf_backend_common_section
726 #define elf_backend_common_section _bfd_elf_common_section
727 #endif
729 #ifndef elf_backend_merge_symbol
730 #define elf_backend_merge_symbol NULL
731 #endif
733 #ifndef elf_backend_hash_symbol
734 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
735 #endif
737 #ifndef elf_backend_is_function_type
738 #define elf_backend_is_function_type _bfd_elf_is_function_type
739 #endif
741 #ifndef elf_backend_maybe_function_sym
742 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
743 #endif
745 #ifndef elf_backend_get_reloc_section
746 #define elf_backend_get_reloc_section _bfd_elf_plt_get_reloc_section
747 #endif
749 #ifndef elf_backend_copy_special_section_fields
750 #define elf_backend_copy_special_section_fields NULL
751 #endif
753 #ifndef elf_backend_compact_eh_encoding
754 #define elf_backend_compact_eh_encoding NULL
755 #endif
757 #ifndef elf_backend_cant_unwind_opcode
758 #define elf_backend_cant_unwind_opcode 0
759 #endif
761 #ifndef elf_match_priority
762 #define elf_match_priority \
763 (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
764 #endif
766 extern const struct elf_size_info _bfd_elfNN_size_info;
768 static struct elf_backend_data elfNN_bed =
770 ELF_ARCH, /* arch */
771 ELF_TARGET_ID, /* target_id */
772 ELF_MACHINE_CODE, /* elf_machine_code */
773 ELF_OSABI, /* elf_osabi */
774 ELF_MAXPAGESIZE, /* maxpagesize */
775 ELF_MINPAGESIZE, /* minpagesize */
776 ELF_COMMONPAGESIZE, /* commonpagesize */
777 ELF_RELROPAGESIZE, /* commonpagesize to use with -z relro */
778 ELF_DYNAMIC_SEC_FLAGS, /* dynamic_sec_flags */
779 elf_backend_arch_data,
780 elf_info_to_howto,
781 elf_info_to_howto_rel,
782 elf_backend_sym_is_global,
783 elf_backend_object_p,
784 elf_backend_symbol_processing,
785 elf_backend_symbol_table_processing,
786 elf_backend_get_symbol_type,
787 elf_backend_archive_symbol_lookup,
788 elf_backend_name_local_section_symbols,
789 elf_backend_section_processing,
790 elf_backend_section_from_shdr,
791 elf_backend_section_flags,
792 elf_backend_get_sec_type_attr,
793 elf_backend_section_from_phdr,
794 elf_backend_fake_sections,
795 elf_backend_section_from_bfd_section,
796 elf_backend_add_symbol_hook,
797 elf_backend_link_output_symbol_hook,
798 elf_backend_create_dynamic_sections,
799 elf_backend_omit_section_dynsym,
800 elf_backend_relocs_compatible,
801 elf_backend_check_relocs,
802 elf_backend_check_directives,
803 elf_backend_notice_as_needed,
804 elf_backend_adjust_dynamic_symbol,
805 elf_backend_always_size_sections,
806 elf_backend_size_dynamic_sections,
807 elf_backend_init_index_section,
808 elf_backend_relocate_section,
809 elf_backend_finish_dynamic_symbol,
810 elf_backend_finish_dynamic_sections,
811 elf_backend_begin_write_processing,
812 elf_backend_final_write_processing,
813 elf_backend_additional_program_headers,
814 elf_backend_modify_segment_map,
815 elf_backend_modify_program_headers,
816 elf_backend_allow_non_load_phdr,
817 elf_backend_gc_keep,
818 elf_backend_gc_mark_dynamic_ref,
819 elf_backend_gc_mark_hook,
820 elf_backend_gc_mark_extra_sections,
821 elf_backend_post_process_headers,
822 elf_backend_print_symbol_all,
823 elf_backend_output_arch_local_syms,
824 elf_backend_output_arch_syms,
825 elf_backend_filter_implib_symbols,
826 elf_backend_copy_indirect_symbol,
827 elf_backend_hide_symbol,
828 elf_backend_fixup_symbol,
829 elf_backend_merge_symbol_attribute,
830 elf_backend_get_target_dtag,
831 elf_backend_ignore_undef_symbol,
832 elf_backend_emit_relocs,
833 elf_backend_update_relocs,
834 elf_backend_count_relocs,
835 elf_backend_count_additional_relocs,
836 elf_backend_sort_relocs_p,
837 elf_backend_grok_prstatus,
838 elf_backend_grok_psinfo,
839 elf_backend_grok_freebsd_prstatus,
840 elf_backend_write_core_note,
841 elf_backend_lookup_section_flags_hook,
842 elf_backend_reloc_type_class,
843 elf_backend_discard_info,
844 elf_backend_ignore_discarded_relocs,
845 elf_backend_action_discarded,
846 elf_backend_eh_frame_address_size,
847 elf_backend_can_make_relative_eh_frame,
848 elf_backend_can_make_lsda_relative_eh_frame,
849 elf_backend_encode_eh_address,
850 elf_backend_write_section,
851 elf_backend_mips_irix_compat,
852 elf_backend_mips_rtype_to_howto,
853 elf_backend_ecoff_debug_swap,
854 elf_backend_bfd_from_remote_memory,
855 elf_backend_plt_sym_val,
856 elf_backend_common_definition,
857 elf_backend_common_section_index,
858 elf_backend_common_section,
859 elf_backend_merge_symbol,
860 elf_backend_hash_symbol,
861 elf_backend_is_function_type,
862 elf_backend_maybe_function_sym,
863 elf_backend_get_reloc_section,
864 elf_backend_copy_special_section_fields,
865 elf_backend_link_order_error_handler,
866 elf_backend_relplt_name,
867 ELF_MACHINE_ALT1,
868 ELF_MACHINE_ALT2,
869 &elf_backend_size_info,
870 elf_backend_special_sections,
871 elf_backend_got_header_size,
872 elf_backend_got_elt_size,
873 elf_backend_obj_attrs_vendor,
874 elf_backend_obj_attrs_section,
875 elf_backend_obj_attrs_arg_type,
876 elf_backend_obj_attrs_section_type,
877 elf_backend_obj_attrs_order,
878 elf_backend_obj_attrs_handle_unknown,
879 elf_backend_parse_gnu_properties,
880 elf_backend_merge_gnu_properties,
881 elf_backend_setup_gnu_properties,
882 elf_backend_fixup_gnu_properties,
883 elf_backend_compact_eh_encoding,
884 elf_backend_cant_unwind_opcode,
885 elf_backend_static_tls_alignment,
886 elf_backend_stack_align,
887 elf_backend_strtab_flags,
888 elf_backend_collect,
889 elf_backend_type_change_ok,
890 elf_backend_may_use_rel_p,
891 elf_backend_may_use_rela_p,
892 elf_backend_default_use_rela_p,
893 elf_backend_rela_plts_and_copies_p,
894 elf_backend_rela_normal,
895 elf_backend_dtrel_excludes_plt,
896 elf_backend_sign_extend_vma,
897 elf_backend_want_got_plt,
898 elf_backend_plt_readonly,
899 elf_backend_want_plt_sym,
900 elf_backend_plt_not_loaded,
901 elf_backend_plt_alignment,
902 elf_backend_can_gc_sections,
903 elf_backend_can_refcount,
904 elf_backend_want_got_sym,
905 elf_backend_want_dynbss,
906 elf_backend_want_dynrelro,
907 elf_backend_want_p_paddr_set_to_zero,
908 elf_backend_no_page_alias,
909 elf_backend_default_execstack,
910 elf_backend_caches_rawsize,
911 elf_backend_extern_protected_data,
912 elf_backend_always_renumber_dynsyms,
913 elf_backend_linux_prpsinfo32_ugid16,
914 elf_backend_linux_prpsinfo64_ugid16
917 /* Forward declaration for use when initialising alternative_target field. */
918 #ifdef TARGET_LITTLE_SYM
919 extern const bfd_target TARGET_LITTLE_SYM;
920 #endif
922 #ifdef TARGET_BIG_SYM
923 const bfd_target TARGET_BIG_SYM =
925 /* name: identify kind of target */
926 TARGET_BIG_NAME,
928 /* flavour: general indication about file */
929 bfd_target_elf_flavour,
931 /* byteorder: data is big endian */
932 BFD_ENDIAN_BIG,
934 /* header_byteorder: header is also big endian */
935 BFD_ENDIAN_BIG,
937 /* object_flags: mask of all file flags */
938 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
939 | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
940 | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
942 /* section_flags: mask of all section flags */
943 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
944 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
945 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
947 /* leading_symbol_char: is the first char of a user symbol
948 predictable, and if so what is it */
949 elf_symbol_leading_char,
951 /* ar_pad_char: pad character for filenames within an archive header
952 FIXME: this really has nothing to do with ELF, this is a characteristic
953 of the archiver and/or os and should be independently tunable */
954 '/',
956 /* ar_max_namelen: maximum number of characters in an archive header
957 FIXME: this really has nothing to do with ELF, this is a characteristic
958 of the archiver and should be independently tunable. The System V ABI,
959 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */
962 elf_match_priority,
964 /* Routines to byte-swap various sized integers from the data sections */
965 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
966 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
967 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
969 /* Routines to byte-swap various sized integers from the file headers */
970 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
971 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
972 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
974 /* bfd_check_format: check the format of a file being read */
975 { _bfd_dummy_target, /* unknown format */
976 bfd_elfNN_object_p, /* assembler/linker output (object file) */
977 bfd_elfNN_archive_p, /* an archive */
978 bfd_elfNN_core_file_p /* a core file */
981 /* bfd_set_format: set the format of a file being written */
982 { _bfd_bool_bfd_false_error,
983 bfd_elfNN_mkobject,
984 bfd_elfNN_mkarchive,
985 bfd_elfNN_mkcorefile
988 /* bfd_write_contents: write cached information into a file being written */
989 { _bfd_bool_bfd_false_error,
990 bfd_elfNN_write_object_contents,
991 bfd_elfNN_write_archive_contents,
992 bfd_elfNN_write_corefile_contents,
995 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
996 BFD_JUMP_TABLE_COPY (bfd_elfNN),
997 BFD_JUMP_TABLE_CORE (bfd_elfNN),
998 #ifdef bfd_elfNN_archive_functions
999 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
1000 #elif defined USE_64_BIT_ARCHIVE
1001 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
1002 #else
1003 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
1004 #endif
1005 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
1006 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
1007 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
1008 BFD_JUMP_TABLE_LINK (bfd_elfNN),
1009 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
1011 /* Alternative endian target. */
1012 #ifdef TARGET_LITTLE_SYM
1013 & TARGET_LITTLE_SYM,
1014 #else
1015 NULL,
1016 #endif
1018 /* backend_data: */
1019 &elfNN_bed
1021 #endif
1023 #ifdef TARGET_LITTLE_SYM
1024 const bfd_target TARGET_LITTLE_SYM =
1026 /* name: identify kind of target */
1027 TARGET_LITTLE_NAME,
1029 /* flavour: general indication about file */
1030 bfd_target_elf_flavour,
1032 /* byteorder: data is little endian */
1033 BFD_ENDIAN_LITTLE,
1035 /* header_byteorder: header is also little endian */
1036 BFD_ENDIAN_LITTLE,
1038 /* object_flags: mask of all file flags */
1039 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
1040 | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
1041 | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
1043 /* section_flags: mask of all section flags */
1044 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
1045 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
1046 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
1048 /* leading_symbol_char: is the first char of a user symbol
1049 predictable, and if so what is it */
1050 elf_symbol_leading_char,
1052 /* ar_pad_char: pad character for filenames within an archive header
1053 FIXME: this really has nothing to do with ELF, this is a characteristic
1054 of the archiver and/or os and should be independently tunable */
1055 '/',
1057 /* ar_max_namelen: maximum number of characters in an archive header
1058 FIXME: this really has nothing to do with ELF, this is a characteristic
1059 of the archiver and should be independently tunable. The System V ABI,
1060 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */
1063 elf_match_priority,
1065 /* Routines to byte-swap various sized integers from the data sections */
1066 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1067 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1068 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1070 /* Routines to byte-swap various sized integers from the file headers */
1071 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1072 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1073 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1075 /* bfd_check_format: check the format of a file being read */
1076 { _bfd_dummy_target, /* unknown format */
1077 bfd_elfNN_object_p, /* assembler/linker output (object file) */
1078 bfd_elfNN_archive_p, /* an archive */
1079 bfd_elfNN_core_file_p /* a core file */
1082 /* bfd_set_format: set the format of a file being written */
1083 { _bfd_bool_bfd_false_error,
1084 bfd_elfNN_mkobject,
1085 bfd_elfNN_mkarchive,
1086 bfd_elfNN_mkcorefile
1089 /* bfd_write_contents: write cached information into a file being written */
1090 { _bfd_bool_bfd_false_error,
1091 bfd_elfNN_write_object_contents,
1092 bfd_elfNN_write_archive_contents,
1093 bfd_elfNN_write_corefile_contents,
1096 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
1097 BFD_JUMP_TABLE_COPY (bfd_elfNN),
1098 BFD_JUMP_TABLE_CORE (bfd_elfNN),
1099 #ifdef bfd_elfNN_archive_functions
1100 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
1101 #elif defined USE_64_BIT_ARCHIVE
1102 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
1103 #else
1104 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
1105 #endif
1106 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
1107 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
1108 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
1109 BFD_JUMP_TABLE_LINK (bfd_elfNN),
1110 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
1112 /* Alternative endian target. */
1113 #ifdef TARGET_BIG_SYM
1114 & TARGET_BIG_SYM,
1115 #else
1116 NULL,
1117 #endif
1119 /* backend_data: */
1120 &elfNN_bed
1122 #endif