ld: Hide symbols defined by HIDDEN/PROVIDE_HIDDEN
[deliverable/binutils-gdb.git] / bfd / elfxx-target.h
1 /* Target definitions for NN-bit ELF
2 Copyright (C) 1993-2018 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_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
89
90 #define bfd_elfNN_get_section_contents_in_window \
91 _bfd_generic_get_section_contents_in_window
92
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
147
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
151
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
156
157 #ifndef bfd_elfNN_bfd_relax_section
158 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
159 #endif
160
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
185
186 #ifndef bfd_elfNN_bfd_merge_sections
187 #define bfd_elfNN_bfd_merge_sections \
188 _bfd_elf_merge_sections
189 #endif
190
191 #ifndef bfd_elfNN_bfd_is_group_section
192 #define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section
193 #endif
194
195 #ifndef bfd_elfNN_bfd_discard_group
196 #define bfd_elfNN_bfd_discard_group bfd_generic_discard_group
197 #endif
198
199 #ifndef bfd_elfNN_section_already_linked
200 #define bfd_elfNN_section_already_linked \
201 _bfd_elf_section_already_linked
202 #endif
203
204 #ifndef bfd_elfNN_bfd_define_common_symbol
205 #define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol
206 #endif
207
208 #ifndef bfd_elfNN_bfd_link_hide_symbol
209 #define bfd_elfNN_bfd_link_hide_symbol _bfd_elf_link_hide_symbol
210 #endif
211
212 #ifndef bfd_elfNN_bfd_lookup_section_flags
213 #define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags
214 #endif
215
216 #ifndef bfd_elfNN_bfd_make_debug_symbol
217 #define bfd_elfNN_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
218 #endif
219
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
224
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
253
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
262
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) */
304
305 #ifndef bfd_elfNN_bfd_link_just_syms
306 #define bfd_elfNN_bfd_link_just_syms _bfd_elf_link_just_syms
307 #endif
308
309 #ifndef bfd_elfNN_bfd_link_split_section
310 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
311 #endif
312
313 #ifndef bfd_elfNN_bfd_link_check_relocs
314 #define bfd_elfNN_bfd_link_check_relocs _bfd_elf_link_check_relocs
315 #endif
316
317 #ifndef bfd_elfNN_archive_p
318 #define bfd_elfNN_archive_p bfd_generic_archive_p
319 #endif
320
321 #ifndef bfd_elfNN_write_archive_contents
322 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
323 #endif
324
325 #ifndef bfd_elfNN_mkobject
326 #define bfd_elfNN_mkobject bfd_elf_make_object
327 #endif
328
329 #ifndef bfd_elfNN_mkcorefile
330 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
331 #endif
332
333 #ifndef bfd_elfNN_mkarchive
334 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
335 #endif
336
337 #ifndef bfd_elfNN_print_symbol
338 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
339 #endif
340
341 #ifndef elf_symbol_leading_char
342 #define elf_symbol_leading_char 0
343 #endif
344
345 #ifndef elf_info_to_howto
346 #define elf_info_to_howto NULL
347 #endif
348
349 #ifndef elf_info_to_howto_rel
350 #define elf_info_to_howto_rel NULL
351 #endif
352
353 #ifndef elf_backend_arch_data
354 #define elf_backend_arch_data NULL
355 #endif
356
357 #ifndef ELF_TARGET_ID
358 #define ELF_TARGET_ID GENERIC_ELF_DATA
359 #endif
360
361 #ifndef ELF_OSABI
362 #define ELF_OSABI ELFOSABI_NONE
363 #endif
364
365 #ifndef ELF_MAXPAGESIZE
366 # error ELF_MAXPAGESIZE is not defined
367 #define ELF_MAXPAGESIZE 1
368 #endif
369
370 #ifndef ELF_COMMONPAGESIZE
371 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
372 #endif
373
374 #ifndef ELF_RELROPAGESIZE
375 #define ELF_RELROPAGESIZE ELF_COMMONPAGESIZE
376 #endif
377
378 #ifndef ELF_MINPAGESIZE
379 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
380 #endif
381
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
394
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
401
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
408
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_static_tls_alignment
554 #define elf_backend_static_tls_alignment 1
555 #endif
556 #ifndef elf_backend_post_process_headers
557 #define elf_backend_post_process_headers _bfd_elf_post_process_headers
558 #endif
559 #ifndef elf_backend_print_symbol_all
560 #define elf_backend_print_symbol_all NULL
561 #endif
562 #ifndef elf_backend_output_arch_local_syms
563 #define elf_backend_output_arch_local_syms NULL
564 #endif
565 #ifndef elf_backend_output_arch_syms
566 #define elf_backend_output_arch_syms NULL
567 #endif
568 #ifndef elf_backend_filter_implib_symbols
569 #define elf_backend_filter_implib_symbols NULL
570 #endif
571 #ifndef elf_backend_copy_indirect_symbol
572 #define elf_backend_copy_indirect_symbol _bfd_elf_link_hash_copy_indirect
573 #endif
574 #ifndef elf_backend_hide_symbol
575 #define elf_backend_hide_symbol _bfd_elf_link_hash_hide_symbol
576 #endif
577 #ifndef elf_backend_fixup_symbol
578 #define elf_backend_fixup_symbol NULL
579 #endif
580 #ifndef elf_backend_merge_symbol_attribute
581 #define elf_backend_merge_symbol_attribute NULL
582 #endif
583 #ifndef elf_backend_get_target_dtag
584 #define elf_backend_get_target_dtag NULL
585 #endif
586 #ifndef elf_backend_ignore_undef_symbol
587 #define elf_backend_ignore_undef_symbol NULL
588 #endif
589 #ifndef elf_backend_emit_relocs
590 #define elf_backend_emit_relocs _bfd_elf_link_output_relocs
591 #endif
592 #ifndef elf_backend_update_relocs
593 #define elf_backend_update_relocs NULL
594 #endif
595 #ifndef elf_backend_count_relocs
596 #define elf_backend_count_relocs NULL
597 #endif
598 #ifndef elf_backend_count_additional_relocs
599 #define elf_backend_count_additional_relocs NULL
600 #endif
601 #ifndef elf_backend_sort_relocs_p
602 #define elf_backend_sort_relocs_p NULL
603 #endif
604 #ifndef elf_backend_grok_prstatus
605 #define elf_backend_grok_prstatus NULL
606 #endif
607 #ifndef elf_backend_grok_psinfo
608 #define elf_backend_grok_psinfo NULL
609 #endif
610 #ifndef elf_backend_grok_freebsd_prstatus
611 #define elf_backend_grok_freebsd_prstatus NULL
612 #endif
613 #ifndef elf_backend_write_core_note
614 #define elf_backend_write_core_note NULL
615 #endif
616 #ifndef elf_backend_lookup_section_flags_hook
617 #define elf_backend_lookup_section_flags_hook NULL
618 #endif
619 #ifndef elf_backend_reloc_type_class
620 #define elf_backend_reloc_type_class _bfd_elf_reloc_type_class
621 #endif
622 #ifndef elf_backend_discard_info
623 #define elf_backend_discard_info NULL
624 #endif
625 #ifndef elf_backend_ignore_discarded_relocs
626 #define elf_backend_ignore_discarded_relocs NULL
627 #endif
628 #ifndef elf_backend_action_discarded
629 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
630 #endif
631 #ifndef elf_backend_eh_frame_address_size
632 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
633 #endif
634 #ifndef elf_backend_can_make_relative_eh_frame
635 #define elf_backend_can_make_relative_eh_frame _bfd_elf_can_make_relative
636 #endif
637 #ifndef elf_backend_can_make_lsda_relative_eh_frame
638 #define elf_backend_can_make_lsda_relative_eh_frame _bfd_elf_can_make_relative
639 #endif
640 #ifndef elf_backend_encode_eh_address
641 #define elf_backend_encode_eh_address _bfd_elf_encode_eh_address
642 #endif
643 #ifndef elf_backend_write_section
644 #define elf_backend_write_section NULL
645 #endif
646 #ifndef elf_backend_mips_irix_compat
647 #define elf_backend_mips_irix_compat NULL
648 #endif
649 #ifndef elf_backend_mips_rtype_to_howto
650 #define elf_backend_mips_rtype_to_howto NULL
651 #endif
652
653 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
654 sections, but not both. They defined USE_REL to indicate SHT_REL
655 sections, and left it undefined to indicated SHT_RELA sections.
656 For backwards compatibility, we still support this usage. */
657 #ifndef USE_REL
658 #define USE_REL 0
659 #endif
660
661 /* Use these in new code. */
662 #ifndef elf_backend_may_use_rel_p
663 #define elf_backend_may_use_rel_p USE_REL
664 #endif
665 #ifndef elf_backend_may_use_rela_p
666 #define elf_backend_may_use_rela_p !USE_REL
667 #endif
668 #ifndef elf_backend_default_use_rela_p
669 #define elf_backend_default_use_rela_p !USE_REL
670 #endif
671 #ifndef elf_backend_rela_plts_and_copies_p
672 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
673 #endif
674
675 #ifndef elf_backend_rela_normal
676 #define elf_backend_rela_normal 0
677 #endif
678
679 #ifndef elf_backend_dtrel_excludes_plt
680 #define elf_backend_dtrel_excludes_plt 0
681 #endif
682
683 #ifndef elf_backend_plt_sym_val
684 #define elf_backend_plt_sym_val NULL
685 #endif
686 #ifndef elf_backend_relplt_name
687 #define elf_backend_relplt_name NULL
688 #endif
689
690 #ifndef ELF_MACHINE_ALT1
691 #define ELF_MACHINE_ALT1 0
692 #endif
693
694 #ifndef ELF_MACHINE_ALT2
695 #define ELF_MACHINE_ALT2 0
696 #endif
697
698 #ifndef elf_backend_size_info
699 #define elf_backend_size_info _bfd_elfNN_size_info
700 #endif
701
702 #ifndef elf_backend_special_sections
703 #define elf_backend_special_sections NULL
704 #endif
705
706 #ifndef elf_backend_sign_extend_vma
707 #define elf_backend_sign_extend_vma 0
708 #endif
709
710 #ifndef elf_backend_link_order_error_handler
711 #define elf_backend_link_order_error_handler _bfd_error_handler
712 #endif
713
714 #ifndef elf_backend_common_definition
715 #define elf_backend_common_definition _bfd_elf_common_definition
716 #endif
717
718 #ifndef elf_backend_common_section_index
719 #define elf_backend_common_section_index _bfd_elf_common_section_index
720 #endif
721
722 #ifndef elf_backend_common_section
723 #define elf_backend_common_section _bfd_elf_common_section
724 #endif
725
726 #ifndef elf_backend_merge_symbol
727 #define elf_backend_merge_symbol NULL
728 #endif
729
730 #ifndef elf_backend_hash_symbol
731 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
732 #endif
733
734 #ifndef elf_backend_is_function_type
735 #define elf_backend_is_function_type _bfd_elf_is_function_type
736 #endif
737
738 #ifndef elf_backend_maybe_function_sym
739 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
740 #endif
741
742 #ifndef elf_backend_get_reloc_section
743 #define elf_backend_get_reloc_section _bfd_elf_plt_get_reloc_section
744 #endif
745
746 #ifndef elf_backend_copy_special_section_fields
747 #define elf_backend_copy_special_section_fields NULL
748 #endif
749
750 #ifndef elf_backend_compact_eh_encoding
751 #define elf_backend_compact_eh_encoding NULL
752 #endif
753
754 #ifndef elf_backend_cant_unwind_opcode
755 #define elf_backend_cant_unwind_opcode 0
756 #endif
757
758 #ifndef elf_match_priority
759 #define elf_match_priority \
760 (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
761 #endif
762
763 extern const struct elf_size_info _bfd_elfNN_size_info;
764
765 static struct elf_backend_data elfNN_bed =
766 {
767 ELF_ARCH, /* arch */
768 ELF_TARGET_ID, /* target_id */
769 ELF_MACHINE_CODE, /* elf_machine_code */
770 ELF_OSABI, /* elf_osabi */
771 ELF_MAXPAGESIZE, /* maxpagesize */
772 ELF_MINPAGESIZE, /* minpagesize */
773 ELF_COMMONPAGESIZE, /* commonpagesize */
774 ELF_RELROPAGESIZE, /* commonpagesize to use with -z relro */
775 ELF_DYNAMIC_SEC_FLAGS, /* dynamic_sec_flags */
776 elf_backend_arch_data,
777 elf_info_to_howto,
778 elf_info_to_howto_rel,
779 elf_backend_sym_is_global,
780 elf_backend_object_p,
781 elf_backend_symbol_processing,
782 elf_backend_symbol_table_processing,
783 elf_backend_get_symbol_type,
784 elf_backend_archive_symbol_lookup,
785 elf_backend_name_local_section_symbols,
786 elf_backend_section_processing,
787 elf_backend_section_from_shdr,
788 elf_backend_section_flags,
789 elf_backend_get_sec_type_attr,
790 elf_backend_section_from_phdr,
791 elf_backend_fake_sections,
792 elf_backend_section_from_bfd_section,
793 elf_backend_add_symbol_hook,
794 elf_backend_link_output_symbol_hook,
795 elf_backend_create_dynamic_sections,
796 elf_backend_omit_section_dynsym,
797 elf_backend_relocs_compatible,
798 elf_backend_check_relocs,
799 elf_backend_check_directives,
800 elf_backend_notice_as_needed,
801 elf_backend_adjust_dynamic_symbol,
802 elf_backend_always_size_sections,
803 elf_backend_size_dynamic_sections,
804 elf_backend_init_index_section,
805 elf_backend_relocate_section,
806 elf_backend_finish_dynamic_symbol,
807 elf_backend_finish_dynamic_sections,
808 elf_backend_begin_write_processing,
809 elf_backend_final_write_processing,
810 elf_backend_additional_program_headers,
811 elf_backend_modify_segment_map,
812 elf_backend_modify_program_headers,
813 elf_backend_allow_non_load_phdr,
814 elf_backend_gc_keep,
815 elf_backend_gc_mark_dynamic_ref,
816 elf_backend_gc_mark_hook,
817 elf_backend_gc_mark_extra_sections,
818 elf_backend_post_process_headers,
819 elf_backend_print_symbol_all,
820 elf_backend_output_arch_local_syms,
821 elf_backend_output_arch_syms,
822 elf_backend_filter_implib_symbols,
823 elf_backend_copy_indirect_symbol,
824 elf_backend_hide_symbol,
825 elf_backend_fixup_symbol,
826 elf_backend_merge_symbol_attribute,
827 elf_backend_get_target_dtag,
828 elf_backend_ignore_undef_symbol,
829 elf_backend_emit_relocs,
830 elf_backend_update_relocs,
831 elf_backend_count_relocs,
832 elf_backend_count_additional_relocs,
833 elf_backend_sort_relocs_p,
834 elf_backend_grok_prstatus,
835 elf_backend_grok_psinfo,
836 elf_backend_grok_freebsd_prstatus,
837 elf_backend_write_core_note,
838 elf_backend_lookup_section_flags_hook,
839 elf_backend_reloc_type_class,
840 elf_backend_discard_info,
841 elf_backend_ignore_discarded_relocs,
842 elf_backend_action_discarded,
843 elf_backend_eh_frame_address_size,
844 elf_backend_can_make_relative_eh_frame,
845 elf_backend_can_make_lsda_relative_eh_frame,
846 elf_backend_encode_eh_address,
847 elf_backend_write_section,
848 elf_backend_mips_irix_compat,
849 elf_backend_mips_rtype_to_howto,
850 elf_backend_ecoff_debug_swap,
851 elf_backend_bfd_from_remote_memory,
852 elf_backend_plt_sym_val,
853 elf_backend_common_definition,
854 elf_backend_common_section_index,
855 elf_backend_common_section,
856 elf_backend_merge_symbol,
857 elf_backend_hash_symbol,
858 elf_backend_is_function_type,
859 elf_backend_maybe_function_sym,
860 elf_backend_get_reloc_section,
861 elf_backend_copy_special_section_fields,
862 elf_backend_link_order_error_handler,
863 elf_backend_relplt_name,
864 ELF_MACHINE_ALT1,
865 ELF_MACHINE_ALT2,
866 &elf_backend_size_info,
867 elf_backend_special_sections,
868 elf_backend_got_header_size,
869 elf_backend_got_elt_size,
870 elf_backend_obj_attrs_vendor,
871 elf_backend_obj_attrs_section,
872 elf_backend_obj_attrs_arg_type,
873 elf_backend_obj_attrs_section_type,
874 elf_backend_obj_attrs_order,
875 elf_backend_obj_attrs_handle_unknown,
876 elf_backend_parse_gnu_properties,
877 elf_backend_merge_gnu_properties,
878 elf_backend_setup_gnu_properties,
879 elf_backend_compact_eh_encoding,
880 elf_backend_cant_unwind_opcode,
881 elf_backend_static_tls_alignment,
882 elf_backend_stack_align,
883 elf_backend_strtab_flags,
884 elf_backend_collect,
885 elf_backend_type_change_ok,
886 elf_backend_may_use_rel_p,
887 elf_backend_may_use_rela_p,
888 elf_backend_default_use_rela_p,
889 elf_backend_rela_plts_and_copies_p,
890 elf_backend_rela_normal,
891 elf_backend_dtrel_excludes_plt,
892 elf_backend_sign_extend_vma,
893 elf_backend_want_got_plt,
894 elf_backend_plt_readonly,
895 elf_backend_want_plt_sym,
896 elf_backend_plt_not_loaded,
897 elf_backend_plt_alignment,
898 elf_backend_can_gc_sections,
899 elf_backend_can_refcount,
900 elf_backend_want_got_sym,
901 elf_backend_want_dynbss,
902 elf_backend_want_dynrelro,
903 elf_backend_want_p_paddr_set_to_zero,
904 elf_backend_no_page_alias,
905 elf_backend_default_execstack,
906 elf_backend_caches_rawsize,
907 elf_backend_extern_protected_data,
908 elf_backend_always_renumber_dynsyms,
909 elf_backend_linux_prpsinfo32_ugid16,
910 elf_backend_linux_prpsinfo64_ugid16
911 };
912
913 /* Forward declaration for use when initialising alternative_target field. */
914 #ifdef TARGET_LITTLE_SYM
915 extern const bfd_target TARGET_LITTLE_SYM;
916 #endif
917
918 #ifdef TARGET_BIG_SYM
919 const bfd_target TARGET_BIG_SYM =
920 {
921 /* name: identify kind of target */
922 TARGET_BIG_NAME,
923
924 /* flavour: general indication about file */
925 bfd_target_elf_flavour,
926
927 /* byteorder: data is big endian */
928 BFD_ENDIAN_BIG,
929
930 /* header_byteorder: header is also big endian */
931 BFD_ENDIAN_BIG,
932
933 /* object_flags: mask of all file flags */
934 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
935 | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
936 | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
937
938 /* section_flags: mask of all section flags */
939 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
940 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
941 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
942
943 /* leading_symbol_char: is the first char of a user symbol
944 predictable, and if so what is it */
945 elf_symbol_leading_char,
946
947 /* ar_pad_char: pad character for filenames within an archive header
948 FIXME: this really has nothing to do with ELF, this is a characteristic
949 of the archiver and/or os and should be independently tunable */
950 '/',
951
952 /* ar_max_namelen: maximum number of characters in an archive header
953 FIXME: this really has nothing to do with ELF, this is a characteristic
954 of the archiver and should be independently tunable. The System V ABI,
955 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */
956 15,
957
958 elf_match_priority,
959
960 /* Routines to byte-swap various sized integers from the data sections */
961 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
962 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
963 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
964
965 /* Routines to byte-swap various sized integers from the file headers */
966 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
967 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
968 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
969
970 /* bfd_check_format: check the format of a file being read */
971 { _bfd_dummy_target, /* unknown format */
972 bfd_elfNN_object_p, /* assembler/linker output (object file) */
973 bfd_elfNN_archive_p, /* an archive */
974 bfd_elfNN_core_file_p /* a core file */
975 },
976
977 /* bfd_set_format: set the format of a file being written */
978 { _bfd_bool_bfd_false_error,
979 bfd_elfNN_mkobject,
980 bfd_elfNN_mkarchive,
981 bfd_elfNN_mkcorefile
982 },
983
984 /* bfd_write_contents: write cached information into a file being written */
985 { _bfd_bool_bfd_false_error,
986 bfd_elfNN_write_object_contents,
987 bfd_elfNN_write_archive_contents,
988 bfd_elfNN_write_corefile_contents,
989 },
990
991 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
992 BFD_JUMP_TABLE_COPY (bfd_elfNN),
993 BFD_JUMP_TABLE_CORE (bfd_elfNN),
994 #ifdef bfd_elfNN_archive_functions
995 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
996 #elif defined USE_64_BIT_ARCHIVE
997 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
998 #else
999 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
1000 #endif
1001 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
1002 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
1003 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
1004 BFD_JUMP_TABLE_LINK (bfd_elfNN),
1005 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
1006
1007 /* Alternative endian target. */
1008 #ifdef TARGET_LITTLE_SYM
1009 & TARGET_LITTLE_SYM,
1010 #else
1011 NULL,
1012 #endif
1013
1014 /* backend_data: */
1015 &elfNN_bed
1016 };
1017 #endif
1018
1019 #ifdef TARGET_LITTLE_SYM
1020 const bfd_target TARGET_LITTLE_SYM =
1021 {
1022 /* name: identify kind of target */
1023 TARGET_LITTLE_NAME,
1024
1025 /* flavour: general indication about file */
1026 bfd_target_elf_flavour,
1027
1028 /* byteorder: data is little endian */
1029 BFD_ENDIAN_LITTLE,
1030
1031 /* header_byteorder: header is also little endian */
1032 BFD_ENDIAN_LITTLE,
1033
1034 /* object_flags: mask of all file flags */
1035 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
1036 | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
1037 | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
1038
1039 /* section_flags: mask of all section flags */
1040 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
1041 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
1042 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
1043
1044 /* leading_symbol_char: is the first char of a user symbol
1045 predictable, and if so what is it */
1046 elf_symbol_leading_char,
1047
1048 /* ar_pad_char: pad character for filenames within an archive header
1049 FIXME: this really has nothing to do with ELF, this is a characteristic
1050 of the archiver and/or os and should be independently tunable */
1051 '/',
1052
1053 /* ar_max_namelen: maximum number of characters in an archive header
1054 FIXME: this really has nothing to do with ELF, this is a characteristic
1055 of the archiver and should be independently tunable. The System V ABI,
1056 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */
1057 15,
1058
1059 elf_match_priority,
1060
1061 /* Routines to byte-swap various sized integers from the data sections */
1062 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1063 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1064 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1065
1066 /* Routines to byte-swap various sized integers from the file headers */
1067 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1068 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1069 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1070
1071 /* bfd_check_format: check the format of a file being read */
1072 { _bfd_dummy_target, /* unknown format */
1073 bfd_elfNN_object_p, /* assembler/linker output (object file) */
1074 bfd_elfNN_archive_p, /* an archive */
1075 bfd_elfNN_core_file_p /* a core file */
1076 },
1077
1078 /* bfd_set_format: set the format of a file being written */
1079 { _bfd_bool_bfd_false_error,
1080 bfd_elfNN_mkobject,
1081 bfd_elfNN_mkarchive,
1082 bfd_elfNN_mkcorefile
1083 },
1084
1085 /* bfd_write_contents: write cached information into a file being written */
1086 { _bfd_bool_bfd_false_error,
1087 bfd_elfNN_write_object_contents,
1088 bfd_elfNN_write_archive_contents,
1089 bfd_elfNN_write_corefile_contents,
1090 },
1091
1092 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
1093 BFD_JUMP_TABLE_COPY (bfd_elfNN),
1094 BFD_JUMP_TABLE_CORE (bfd_elfNN),
1095 #ifdef bfd_elfNN_archive_functions
1096 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
1097 #elif defined USE_64_BIT_ARCHIVE
1098 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
1099 #else
1100 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
1101 #endif
1102 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
1103 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
1104 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
1105 BFD_JUMP_TABLE_LINK (bfd_elfNN),
1106 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
1107
1108 /* Alternative endian target. */
1109 #ifdef TARGET_BIG_SYM
1110 & TARGET_BIG_SYM,
1111 #else
1112 NULL,
1113 #endif
1114
1115 /* backend_data: */
1116 &elfNN_bed
1117 };
1118 #endif
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