Account for padding in FreeBSD/mipsn32 NT_PRSTATUS notes.
[deliverable/binutils-gdb.git] / bfd / elfxx-target.h
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_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_stack_align
136 #define elf_backend_stack_align 16
137 #endif
138 #ifndef elf_backend_strtab_flags
139 #define elf_backend_strtab_flags 0
140 #endif
141
142 #define bfd_elfNN_bfd_debug_info_start bfd_void
143 #define bfd_elfNN_bfd_debug_info_end bfd_void
144 #define bfd_elfNN_bfd_debug_info_accumulate \
145 ((void (*) (bfd*, struct bfd_section *)) bfd_void)
146
147 #ifndef bfd_elfNN_bfd_get_relocated_section_contents
148 #define bfd_elfNN_bfd_get_relocated_section_contents \
149 bfd_generic_get_relocated_section_contents
150 #endif
151
152 #ifndef bfd_elfNN_bfd_relax_section
153 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
154 #endif
155
156 #ifndef elf_backend_can_gc_sections
157 #define elf_backend_can_gc_sections 0
158 #endif
159 #ifndef elf_backend_can_refcount
160 #define elf_backend_can_refcount 0
161 #endif
162 #ifndef elf_backend_want_got_sym
163 #define elf_backend_want_got_sym 1
164 #endif
165 #ifndef elf_backend_gc_keep
166 #define elf_backend_gc_keep _bfd_elf_gc_keep
167 #endif
168 #ifndef elf_backend_gc_mark_dynamic_ref
169 #define elf_backend_gc_mark_dynamic_ref bfd_elf_gc_mark_dynamic_ref_symbol
170 #endif
171 #ifndef elf_backend_gc_mark_hook
172 #define elf_backend_gc_mark_hook _bfd_elf_gc_mark_hook
173 #endif
174 #ifndef elf_backend_gc_mark_extra_sections
175 #define elf_backend_gc_mark_extra_sections _bfd_elf_gc_mark_extra_sections
176 #endif
177 #ifndef elf_backend_gc_sweep_hook
178 #define elf_backend_gc_sweep_hook NULL
179 #endif
180 #ifndef bfd_elfNN_bfd_gc_sections
181 #define bfd_elfNN_bfd_gc_sections bfd_elf_gc_sections
182 #endif
183
184 #ifndef bfd_elfNN_bfd_merge_sections
185 #define bfd_elfNN_bfd_merge_sections \
186 _bfd_elf_merge_sections
187 #endif
188
189 #ifndef bfd_elfNN_bfd_is_group_section
190 #define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section
191 #endif
192
193 #ifndef bfd_elfNN_bfd_discard_group
194 #define bfd_elfNN_bfd_discard_group bfd_generic_discard_group
195 #endif
196
197 #ifndef bfd_elfNN_section_already_linked
198 #define bfd_elfNN_section_already_linked \
199 _bfd_elf_section_already_linked
200 #endif
201
202 #ifndef bfd_elfNN_bfd_define_common_symbol
203 #define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol
204 #endif
205
206 #ifndef bfd_elfNN_bfd_lookup_section_flags
207 #define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags
208 #endif
209
210 #ifndef bfd_elfNN_bfd_make_debug_symbol
211 #define bfd_elfNN_bfd_make_debug_symbol \
212 ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
213 #endif
214
215 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
216 #define bfd_elfNN_bfd_copy_private_symbol_data \
217 _bfd_elf_copy_private_symbol_data
218 #endif
219
220 #ifndef bfd_elfNN_bfd_copy_private_section_data
221 #define bfd_elfNN_bfd_copy_private_section_data \
222 _bfd_elf_copy_private_section_data
223 #endif
224 #ifndef bfd_elfNN_bfd_copy_private_header_data
225 #define bfd_elfNN_bfd_copy_private_header_data \
226 _bfd_elf_copy_private_header_data
227 #endif
228 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
229 #define bfd_elfNN_bfd_copy_private_bfd_data \
230 _bfd_elf_copy_private_bfd_data
231 #endif
232 #ifndef bfd_elfNN_bfd_print_private_bfd_data
233 #define bfd_elfNN_bfd_print_private_bfd_data \
234 _bfd_elf_print_private_bfd_data
235 #endif
236 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
237 #define bfd_elfNN_bfd_merge_private_bfd_data \
238 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_true)
239 #endif
240 #ifndef bfd_elfNN_bfd_set_private_flags
241 #define bfd_elfNN_bfd_set_private_flags \
242 ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
243 #endif
244 #ifndef bfd_elfNN_bfd_is_local_label_name
245 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
246 #endif
247 #ifndef bfd_elfNN_bfd_is_target_special_symbol
248 #define bfd_elfNN_bfd_is_target_special_symbol \
249 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
250 #endif
251
252 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
253 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
254 _bfd_elf_get_dynamic_reloc_upper_bound
255 #endif
256 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
257 #define bfd_elfNN_canonicalize_dynamic_reloc \
258 _bfd_elf_canonicalize_dynamic_reloc
259 #endif
260
261 #ifdef elf_backend_relocate_section
262 #ifndef bfd_elfNN_bfd_link_hash_table_create
263 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
264 #endif
265 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
266 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
267 _bfd_elf_copy_link_hash_symbol_type
268 #endif
269 #ifndef bfd_elfNN_bfd_link_add_symbols
270 #define bfd_elfNN_bfd_link_add_symbols bfd_elf_link_add_symbols
271 #endif
272 #ifndef bfd_elfNN_bfd_define_start_stop
273 #define bfd_elfNN_bfd_define_start_stop bfd_elf_define_start_stop
274 #endif
275 #ifndef bfd_elfNN_bfd_final_link
276 #define bfd_elfNN_bfd_final_link bfd_elf_final_link
277 #endif
278 #else /* ! defined (elf_backend_relocate_section) */
279 /* If no backend relocate_section routine, use the generic linker.
280 Note - this will prevent the port from being able to use some of
281 the other features of the ELF linker, because the generic hash structure
282 does not have the fields needed by the ELF linker. In particular it
283 means that linking directly to S-records will not work. */
284 #ifndef bfd_elfNN_bfd_link_hash_table_create
285 #define bfd_elfNN_bfd_link_hash_table_create \
286 _bfd_generic_link_hash_table_create
287 #endif
288 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
289 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
290 _bfd_generic_copy_link_hash_symbol_type
291 #endif
292 #ifndef bfd_elfNN_bfd_link_add_symbols
293 #define bfd_elfNN_bfd_link_add_symbols _bfd_generic_link_add_symbols
294 #endif
295 #ifndef bfd_elfNN_bfd_define_start_stop
296 #define bfd_elfNN_bfd_define_start_stop bfd_generic_define_start_stop
297 #endif
298 #ifndef bfd_elfNN_bfd_final_link
299 #define bfd_elfNN_bfd_final_link _bfd_generic_final_link
300 #endif
301 #endif /* ! defined (elf_backend_relocate_section) */
302
303 #ifndef bfd_elfNN_bfd_link_just_syms
304 #define bfd_elfNN_bfd_link_just_syms _bfd_elf_link_just_syms
305 #endif
306
307 #ifndef bfd_elfNN_bfd_link_split_section
308 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
309 #endif
310
311 #ifndef bfd_elfNN_bfd_link_check_relocs
312 #define bfd_elfNN_bfd_link_check_relocs _bfd_elf_link_check_relocs
313 #endif
314
315 #ifndef bfd_elfNN_archive_p
316 #define bfd_elfNN_archive_p bfd_generic_archive_p
317 #endif
318
319 #ifndef bfd_elfNN_write_archive_contents
320 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
321 #endif
322
323 #ifndef bfd_elfNN_mkobject
324 #define bfd_elfNN_mkobject bfd_elf_make_object
325 #endif
326
327 #ifndef bfd_elfNN_mkcorefile
328 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
329 #endif
330
331 #ifndef bfd_elfNN_mkarchive
332 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
333 #endif
334
335 #ifndef bfd_elfNN_print_symbol
336 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
337 #endif
338
339 #ifndef elf_symbol_leading_char
340 #define elf_symbol_leading_char 0
341 #endif
342
343 #ifndef elf_info_to_howto
344 #define elf_info_to_howto 0
345 #endif
346
347 #ifndef elf_info_to_howto_rel
348 #define elf_info_to_howto_rel 0
349 #endif
350
351 #ifndef elf_backend_arch_data
352 #define elf_backend_arch_data NULL
353 #endif
354
355 #ifndef ELF_TARGET_ID
356 #define ELF_TARGET_ID GENERIC_ELF_DATA
357 #endif
358
359 #ifndef ELF_OSABI
360 #define ELF_OSABI ELFOSABI_NONE
361 #endif
362
363 #ifndef ELF_MAXPAGESIZE
364 # error ELF_MAXPAGESIZE is not defined
365 #define ELF_MAXPAGESIZE 1
366 #endif
367
368 #ifndef ELF_COMMONPAGESIZE
369 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
370 #endif
371
372 #ifndef ELF_MINPAGESIZE
373 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
374 #endif
375
376 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
377 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
378 #endif
379 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
380 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
381 #endif
382
383 #ifndef ELF_DYNAMIC_SEC_FLAGS
384 /* Note that we set the SEC_IN_MEMORY flag for these sections. */
385 #define ELF_DYNAMIC_SEC_FLAGS \
386 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS \
387 | SEC_IN_MEMORY | SEC_LINKER_CREATED)
388 #endif
389
390 #ifndef elf_backend_collect
391 #define elf_backend_collect FALSE
392 #endif
393 #ifndef elf_backend_type_change_ok
394 #define elf_backend_type_change_ok FALSE
395 #endif
396
397 #ifndef elf_backend_sym_is_global
398 #define elf_backend_sym_is_global 0
399 #endif
400 #ifndef elf_backend_object_p
401 #define elf_backend_object_p 0
402 #endif
403 #ifndef elf_backend_symbol_processing
404 #define elf_backend_symbol_processing 0
405 #endif
406 #ifndef elf_backend_symbol_table_processing
407 #define elf_backend_symbol_table_processing 0
408 #endif
409 #ifndef elf_backend_get_symbol_type
410 #define elf_backend_get_symbol_type 0
411 #endif
412 #ifndef elf_backend_archive_symbol_lookup
413 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
414 #endif
415 #ifndef elf_backend_name_local_section_symbols
416 #define elf_backend_name_local_section_symbols 0
417 #endif
418 #ifndef elf_backend_section_processing
419 #define elf_backend_section_processing 0
420 #endif
421 #ifndef elf_backend_section_from_shdr
422 #define elf_backend_section_from_shdr _bfd_elf_make_section_from_shdr
423 #endif
424 #ifndef elf_backend_section_flags
425 #define elf_backend_section_flags 0
426 #endif
427 #ifndef elf_backend_get_sec_type_attr
428 #define elf_backend_get_sec_type_attr _bfd_elf_get_sec_type_attr
429 #endif
430 #ifndef elf_backend_section_from_phdr
431 #define elf_backend_section_from_phdr _bfd_elf_make_section_from_phdr
432 #endif
433 #ifndef elf_backend_fake_sections
434 #define elf_backend_fake_sections 0
435 #endif
436 #ifndef elf_backend_section_from_bfd_section
437 #define elf_backend_section_from_bfd_section 0
438 #endif
439 #ifndef elf_backend_add_symbol_hook
440 #define elf_backend_add_symbol_hook 0
441 #endif
442 #ifndef elf_backend_link_output_symbol_hook
443 #define elf_backend_link_output_symbol_hook 0
444 #endif
445 #ifndef elf_backend_create_dynamic_sections
446 #define elf_backend_create_dynamic_sections 0
447 #endif
448 #ifndef elf_backend_omit_section_dynsym
449 #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym
450 #endif
451 #ifndef elf_backend_relocs_compatible
452 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
453 #endif
454 #ifndef elf_backend_check_relocs
455 #define elf_backend_check_relocs 0
456 #endif
457 #ifndef elf_backend_check_directives
458 #define elf_backend_check_directives 0
459 #endif
460 #ifndef elf_backend_notice_as_needed
461 #define elf_backend_notice_as_needed _bfd_elf_notice_as_needed
462 #endif
463 #ifndef elf_backend_adjust_dynamic_symbol
464 #define elf_backend_adjust_dynamic_symbol 0
465 #endif
466 #ifndef elf_backend_always_size_sections
467 #define elf_backend_always_size_sections 0
468 #endif
469 #ifndef elf_backend_size_dynamic_sections
470 #define elf_backend_size_dynamic_sections 0
471 #endif
472 #ifndef elf_backend_init_index_section
473 #define elf_backend_init_index_section \
474 ((void (*) (bfd *, struct bfd_link_info *)) bfd_void)
475 #endif
476 #ifndef elf_backend_relocate_section
477 #define elf_backend_relocate_section 0
478 #endif
479 #ifndef elf_backend_finish_dynamic_symbol
480 #define elf_backend_finish_dynamic_symbol 0
481 #endif
482 #ifndef elf_backend_finish_dynamic_sections
483 #define elf_backend_finish_dynamic_sections 0
484 #endif
485 #ifndef elf_backend_begin_write_processing
486 #define elf_backend_begin_write_processing 0
487 #endif
488 #ifndef elf_backend_final_write_processing
489 #define elf_backend_final_write_processing 0
490 #endif
491 #ifndef elf_backend_additional_program_headers
492 #define elf_backend_additional_program_headers 0
493 #endif
494 #ifndef elf_backend_modify_segment_map
495 #define elf_backend_modify_segment_map 0
496 #endif
497 #ifndef elf_backend_modify_program_headers
498 #define elf_backend_modify_program_headers 0
499 #endif
500 #ifndef elf_backend_allow_non_load_phdr
501 #define elf_backend_allow_non_load_phdr \
502 ((bfd_boolean (*) (bfd *, const Elf_Internal_Phdr *, unsigned)) bfd_false)
503 #endif
504 #ifndef elf_backend_ecoff_debug_swap
505 #define elf_backend_ecoff_debug_swap 0
506 #endif
507 #ifndef elf_backend_bfd_from_remote_memory
508 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
509 #endif
510 #ifndef elf_backend_got_header_size
511 #define elf_backend_got_header_size 0
512 #endif
513 #ifndef elf_backend_got_elt_size
514 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
515 #endif
516 #ifndef elf_backend_obj_attrs_vendor
517 #define elf_backend_obj_attrs_vendor NULL
518 #endif
519 #ifndef elf_backend_obj_attrs_section
520 #define elf_backend_obj_attrs_section NULL
521 #endif
522 #ifndef elf_backend_obj_attrs_arg_type
523 #define elf_backend_obj_attrs_arg_type NULL
524 #endif
525 #ifndef elf_backend_obj_attrs_section_type
526 #define elf_backend_obj_attrs_section_type SHT_GNU_ATTRIBUTES
527 #endif
528 #ifndef elf_backend_obj_attrs_order
529 #define elf_backend_obj_attrs_order NULL
530 #endif
531 #ifndef elf_backend_obj_attrs_handle_unknown
532 #define elf_backend_obj_attrs_handle_unknown NULL
533 #endif
534 #ifndef elf_backend_parse_gnu_properties
535 #define elf_backend_parse_gnu_properties NULL
536 #endif
537 #ifndef elf_backend_merge_gnu_properties
538 #define elf_backend_merge_gnu_properties NULL
539 #endif
540 #ifndef elf_backend_setup_gnu_properties
541 #define elf_backend_setup_gnu_properties _bfd_elf_link_setup_gnu_properties
542 #endif
543 #ifndef elf_backend_static_tls_alignment
544 #define elf_backend_static_tls_alignment 1
545 #endif
546 #ifndef elf_backend_post_process_headers
547 #define elf_backend_post_process_headers _bfd_elf_post_process_headers
548 #endif
549 #ifndef elf_backend_print_symbol_all
550 #define elf_backend_print_symbol_all NULL
551 #endif
552 #ifndef elf_backend_output_arch_local_syms
553 #define elf_backend_output_arch_local_syms NULL
554 #endif
555 #ifndef elf_backend_output_arch_syms
556 #define elf_backend_output_arch_syms NULL
557 #endif
558 #ifndef elf_backend_filter_implib_symbols
559 #define elf_backend_filter_implib_symbols NULL
560 #endif
561 #ifndef elf_backend_copy_indirect_symbol
562 #define elf_backend_copy_indirect_symbol _bfd_elf_link_hash_copy_indirect
563 #endif
564 #ifndef elf_backend_hide_symbol
565 #define elf_backend_hide_symbol _bfd_elf_link_hash_hide_symbol
566 #endif
567 #ifndef elf_backend_fixup_symbol
568 #define elf_backend_fixup_symbol NULL
569 #endif
570 #ifndef elf_backend_merge_symbol_attribute
571 #define elf_backend_merge_symbol_attribute NULL
572 #endif
573 #ifndef elf_backend_get_target_dtag
574 #define elf_backend_get_target_dtag NULL
575 #endif
576 #ifndef elf_backend_ignore_undef_symbol
577 #define elf_backend_ignore_undef_symbol NULL
578 #endif
579 #ifndef elf_backend_emit_relocs
580 #define elf_backend_emit_relocs _bfd_elf_link_output_relocs
581 #endif
582 #ifndef elf_backend_update_relocs
583 #define elf_backend_update_relocs NULL
584 #endif
585 #ifndef elf_backend_count_relocs
586 #define elf_backend_count_relocs NULL
587 #endif
588 #ifndef elf_backend_count_additional_relocs
589 #define elf_backend_count_additional_relocs NULL
590 #endif
591 #ifndef elf_backend_sort_relocs_p
592 #define elf_backend_sort_relocs_p NULL
593 #endif
594 #ifndef elf_backend_grok_prstatus
595 #define elf_backend_grok_prstatus NULL
596 #endif
597 #ifndef elf_backend_grok_psinfo
598 #define elf_backend_grok_psinfo NULL
599 #endif
600 #ifndef elf_backend_grok_freebsd_prstatus
601 #define elf_backend_grok_freebsd_prstatus NULL
602 #endif
603 #ifndef elf_backend_write_core_note
604 #define elf_backend_write_core_note NULL
605 #endif
606 #ifndef elf_backend_lookup_section_flags_hook
607 #define elf_backend_lookup_section_flags_hook NULL
608 #endif
609 #ifndef elf_backend_reloc_type_class
610 #define elf_backend_reloc_type_class _bfd_elf_reloc_type_class
611 #endif
612 #ifndef elf_backend_discard_info
613 #define elf_backend_discard_info NULL
614 #endif
615 #ifndef elf_backend_ignore_discarded_relocs
616 #define elf_backend_ignore_discarded_relocs NULL
617 #endif
618 #ifndef elf_backend_action_discarded
619 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
620 #endif
621 #ifndef elf_backend_eh_frame_address_size
622 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
623 #endif
624 #ifndef elf_backend_can_make_relative_eh_frame
625 #define elf_backend_can_make_relative_eh_frame _bfd_elf_can_make_relative
626 #endif
627 #ifndef elf_backend_can_make_lsda_relative_eh_frame
628 #define elf_backend_can_make_lsda_relative_eh_frame _bfd_elf_can_make_relative
629 #endif
630 #ifndef elf_backend_encode_eh_address
631 #define elf_backend_encode_eh_address _bfd_elf_encode_eh_address
632 #endif
633 #ifndef elf_backend_write_section
634 #define elf_backend_write_section NULL
635 #endif
636 #ifndef elf_backend_mips_irix_compat
637 #define elf_backend_mips_irix_compat NULL
638 #endif
639 #ifndef elf_backend_mips_rtype_to_howto
640 #define elf_backend_mips_rtype_to_howto NULL
641 #endif
642
643 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
644 sections, but not both. They defined USE_REL to indicate SHT_REL
645 sections, and left it undefined to indicated SHT_RELA sections.
646 For backwards compatibility, we still support this usage. */
647 #ifndef USE_REL
648 #define USE_REL 0
649 #endif
650
651 /* Use these in new code. */
652 #ifndef elf_backend_may_use_rel_p
653 #define elf_backend_may_use_rel_p USE_REL
654 #endif
655 #ifndef elf_backend_may_use_rela_p
656 #define elf_backend_may_use_rela_p !USE_REL
657 #endif
658 #ifndef elf_backend_default_use_rela_p
659 #define elf_backend_default_use_rela_p !USE_REL
660 #endif
661 #ifndef elf_backend_rela_plts_and_copies_p
662 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
663 #endif
664
665 #ifndef elf_backend_rela_normal
666 #define elf_backend_rela_normal 0
667 #endif
668
669 #ifndef elf_backend_dtrel_excludes_plt
670 #define elf_backend_dtrel_excludes_plt 0
671 #endif
672
673 #ifndef elf_backend_plt_sym_val
674 #define elf_backend_plt_sym_val NULL
675 #endif
676 #ifndef elf_backend_relplt_name
677 #define elf_backend_relplt_name NULL
678 #endif
679
680 #ifndef ELF_MACHINE_ALT1
681 #define ELF_MACHINE_ALT1 0
682 #endif
683
684 #ifndef ELF_MACHINE_ALT2
685 #define ELF_MACHINE_ALT2 0
686 #endif
687
688 #ifndef elf_backend_size_info
689 #define elf_backend_size_info _bfd_elfNN_size_info
690 #endif
691
692 #ifndef elf_backend_special_sections
693 #define elf_backend_special_sections NULL
694 #endif
695
696 #ifndef elf_backend_sign_extend_vma
697 #define elf_backend_sign_extend_vma 0
698 #endif
699
700 #ifndef elf_backend_link_order_error_handler
701 #define elf_backend_link_order_error_handler _bfd_error_handler
702 #endif
703
704 #ifndef elf_backend_common_definition
705 #define elf_backend_common_definition _bfd_elf_common_definition
706 #endif
707
708 #ifndef elf_backend_common_section_index
709 #define elf_backend_common_section_index _bfd_elf_common_section_index
710 #endif
711
712 #ifndef elf_backend_common_section
713 #define elf_backend_common_section _bfd_elf_common_section
714 #endif
715
716 #ifndef elf_backend_merge_symbol
717 #define elf_backend_merge_symbol NULL
718 #endif
719
720 #ifndef elf_backend_hash_symbol
721 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
722 #endif
723
724 #ifndef elf_backend_is_function_type
725 #define elf_backend_is_function_type _bfd_elf_is_function_type
726 #endif
727
728 #ifndef elf_backend_maybe_function_sym
729 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
730 #endif
731
732 #ifndef elf_backend_get_reloc_section
733 #define elf_backend_get_reloc_section _bfd_elf_plt_get_reloc_section
734 #endif
735
736 #ifndef elf_backend_copy_special_section_fields
737 #define elf_backend_copy_special_section_fields NULL
738 #endif
739
740 #ifndef elf_backend_compact_eh_encoding
741 #define elf_backend_compact_eh_encoding NULL
742 #endif
743
744 #ifndef elf_backend_cant_unwind_opcode
745 #define elf_backend_cant_unwind_opcode 0
746 #endif
747
748 #ifndef elf_match_priority
749 #define elf_match_priority \
750 (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
751 #endif
752
753 extern const struct elf_size_info _bfd_elfNN_size_info;
754
755 static struct elf_backend_data elfNN_bed =
756 {
757 ELF_ARCH, /* arch */
758 ELF_TARGET_ID, /* target_id */
759 ELF_MACHINE_CODE, /* elf_machine_code */
760 ELF_OSABI, /* elf_osabi */
761 ELF_MAXPAGESIZE, /* maxpagesize */
762 ELF_MINPAGESIZE, /* minpagesize */
763 ELF_COMMONPAGESIZE, /* commonpagesize */
764 ELF_DYNAMIC_SEC_FLAGS, /* dynamic_sec_flags */
765 elf_backend_arch_data,
766 elf_info_to_howto,
767 elf_info_to_howto_rel,
768 elf_backend_sym_is_global,
769 elf_backend_object_p,
770 elf_backend_symbol_processing,
771 elf_backend_symbol_table_processing,
772 elf_backend_get_symbol_type,
773 elf_backend_archive_symbol_lookup,
774 elf_backend_name_local_section_symbols,
775 elf_backend_section_processing,
776 elf_backend_section_from_shdr,
777 elf_backend_section_flags,
778 elf_backend_get_sec_type_attr,
779 elf_backend_section_from_phdr,
780 elf_backend_fake_sections,
781 elf_backend_section_from_bfd_section,
782 elf_backend_add_symbol_hook,
783 elf_backend_link_output_symbol_hook,
784 elf_backend_create_dynamic_sections,
785 elf_backend_omit_section_dynsym,
786 elf_backend_relocs_compatible,
787 elf_backend_check_relocs,
788 elf_backend_check_directives,
789 elf_backend_notice_as_needed,
790 elf_backend_adjust_dynamic_symbol,
791 elf_backend_always_size_sections,
792 elf_backend_size_dynamic_sections,
793 elf_backend_init_index_section,
794 elf_backend_relocate_section,
795 elf_backend_finish_dynamic_symbol,
796 elf_backend_finish_dynamic_sections,
797 elf_backend_begin_write_processing,
798 elf_backend_final_write_processing,
799 elf_backend_additional_program_headers,
800 elf_backend_modify_segment_map,
801 elf_backend_modify_program_headers,
802 elf_backend_allow_non_load_phdr,
803 elf_backend_gc_keep,
804 elf_backend_gc_mark_dynamic_ref,
805 elf_backend_gc_mark_hook,
806 elf_backend_gc_mark_extra_sections,
807 elf_backend_gc_sweep_hook,
808 elf_backend_post_process_headers,
809 elf_backend_print_symbol_all,
810 elf_backend_output_arch_local_syms,
811 elf_backend_output_arch_syms,
812 elf_backend_filter_implib_symbols,
813 elf_backend_copy_indirect_symbol,
814 elf_backend_hide_symbol,
815 elf_backend_fixup_symbol,
816 elf_backend_merge_symbol_attribute,
817 elf_backend_get_target_dtag,
818 elf_backend_ignore_undef_symbol,
819 elf_backend_emit_relocs,
820 elf_backend_update_relocs,
821 elf_backend_count_relocs,
822 elf_backend_count_additional_relocs,
823 elf_backend_sort_relocs_p,
824 elf_backend_grok_prstatus,
825 elf_backend_grok_psinfo,
826 elf_backend_grok_freebsd_prstatus,
827 elf_backend_write_core_note,
828 elf_backend_lookup_section_flags_hook,
829 elf_backend_reloc_type_class,
830 elf_backend_discard_info,
831 elf_backend_ignore_discarded_relocs,
832 elf_backend_action_discarded,
833 elf_backend_eh_frame_address_size,
834 elf_backend_can_make_relative_eh_frame,
835 elf_backend_can_make_lsda_relative_eh_frame,
836 elf_backend_encode_eh_address,
837 elf_backend_write_section,
838 elf_backend_mips_irix_compat,
839 elf_backend_mips_rtype_to_howto,
840 elf_backend_ecoff_debug_swap,
841 elf_backend_bfd_from_remote_memory,
842 elf_backend_plt_sym_val,
843 elf_backend_common_definition,
844 elf_backend_common_section_index,
845 elf_backend_common_section,
846 elf_backend_merge_symbol,
847 elf_backend_hash_symbol,
848 elf_backend_is_function_type,
849 elf_backend_maybe_function_sym,
850 elf_backend_get_reloc_section,
851 elf_backend_copy_special_section_fields,
852 elf_backend_link_order_error_handler,
853 elf_backend_relplt_name,
854 ELF_MACHINE_ALT1,
855 ELF_MACHINE_ALT2,
856 &elf_backend_size_info,
857 elf_backend_special_sections,
858 elf_backend_got_header_size,
859 elf_backend_got_elt_size,
860 elf_backend_obj_attrs_vendor,
861 elf_backend_obj_attrs_section,
862 elf_backend_obj_attrs_arg_type,
863 elf_backend_obj_attrs_section_type,
864 elf_backend_obj_attrs_order,
865 elf_backend_obj_attrs_handle_unknown,
866 elf_backend_parse_gnu_properties,
867 elf_backend_merge_gnu_properties,
868 elf_backend_setup_gnu_properties,
869 elf_backend_compact_eh_encoding,
870 elf_backend_cant_unwind_opcode,
871 elf_backend_static_tls_alignment,
872 elf_backend_stack_align,
873 elf_backend_strtab_flags,
874 elf_backend_collect,
875 elf_backend_type_change_ok,
876 elf_backend_may_use_rel_p,
877 elf_backend_may_use_rela_p,
878 elf_backend_default_use_rela_p,
879 elf_backend_rela_plts_and_copies_p,
880 elf_backend_rela_normal,
881 elf_backend_dtrel_excludes_plt,
882 elf_backend_sign_extend_vma,
883 elf_backend_want_got_plt,
884 elf_backend_plt_readonly,
885 elf_backend_want_plt_sym,
886 elf_backend_plt_not_loaded,
887 elf_backend_plt_alignment,
888 elf_backend_can_gc_sections,
889 elf_backend_can_refcount,
890 elf_backend_want_got_sym,
891 elf_backend_want_dynbss,
892 elf_backend_want_dynrelro,
893 elf_backend_want_p_paddr_set_to_zero,
894 elf_backend_no_page_alias,
895 elf_backend_default_execstack,
896 elf_backend_caches_rawsize,
897 elf_backend_extern_protected_data,
898 elf_backend_always_renumber_dynsyms
899 };
900
901 /* Forward declaration for use when initialising alternative_target field. */
902 #ifdef TARGET_LITTLE_SYM
903 extern const bfd_target TARGET_LITTLE_SYM;
904 #endif
905
906 #ifdef TARGET_BIG_SYM
907 const bfd_target TARGET_BIG_SYM =
908 {
909 /* name: identify kind of target */
910 TARGET_BIG_NAME,
911
912 /* flavour: general indication about file */
913 bfd_target_elf_flavour,
914
915 /* byteorder: data is big endian */
916 BFD_ENDIAN_BIG,
917
918 /* header_byteorder: header is also big endian */
919 BFD_ENDIAN_BIG,
920
921 /* object_flags: mask of all file flags */
922 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
923 | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
924 | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
925
926 /* section_flags: mask of all section flags */
927 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
928 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
929 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
930
931 /* leading_symbol_char: is the first char of a user symbol
932 predictable, and if so what is it */
933 elf_symbol_leading_char,
934
935 /* ar_pad_char: pad character for filenames within an archive header
936 FIXME: this really has nothing to do with ELF, this is a characteristic
937 of the archiver and/or os and should be independently tunable */
938 '/',
939
940 /* ar_max_namelen: maximum number of characters in an archive header
941 FIXME: this really has nothing to do with ELF, this is a characteristic
942 of the archiver and should be independently tunable. The System V ABI,
943 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */
944 15,
945
946 elf_match_priority,
947
948 /* Routines to byte-swap various sized integers from the data sections */
949 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
950 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
951 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
952
953 /* Routines to byte-swap various sized integers from the file headers */
954 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
955 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
956 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
957
958 /* bfd_check_format: check the format of a file being read */
959 { _bfd_dummy_target, /* unknown format */
960 bfd_elfNN_object_p, /* assembler/linker output (object file) */
961 bfd_elfNN_archive_p, /* an archive */
962 bfd_elfNN_core_file_p /* a core file */
963 },
964
965 /* bfd_set_format: set the format of a file being written */
966 { bfd_false,
967 bfd_elfNN_mkobject,
968 bfd_elfNN_mkarchive,
969 bfd_elfNN_mkcorefile
970 },
971
972 /* bfd_write_contents: write cached information into a file being written */
973 { bfd_false,
974 bfd_elfNN_write_object_contents,
975 bfd_elfNN_write_archive_contents,
976 bfd_elfNN_write_corefile_contents,
977 },
978
979 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
980 BFD_JUMP_TABLE_COPY (bfd_elfNN),
981 BFD_JUMP_TABLE_CORE (bfd_elfNN),
982 #ifdef bfd_elfNN_archive_functions
983 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
984 #elif defined USE_64_BIT_ARCHIVE
985 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
986 #else
987 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
988 #endif
989 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
990 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
991 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
992 BFD_JUMP_TABLE_LINK (bfd_elfNN),
993 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
994
995 /* Alternative endian target. */
996 #ifdef TARGET_LITTLE_SYM
997 & TARGET_LITTLE_SYM,
998 #else
999 NULL,
1000 #endif
1001
1002 /* backend_data: */
1003 &elfNN_bed
1004 };
1005 #endif
1006
1007 #ifdef TARGET_LITTLE_SYM
1008 const bfd_target TARGET_LITTLE_SYM =
1009 {
1010 /* name: identify kind of target */
1011 TARGET_LITTLE_NAME,
1012
1013 /* flavour: general indication about file */
1014 bfd_target_elf_flavour,
1015
1016 /* byteorder: data is little endian */
1017 BFD_ENDIAN_LITTLE,
1018
1019 /* header_byteorder: header is also little endian */
1020 BFD_ENDIAN_LITTLE,
1021
1022 /* object_flags: mask of all file flags */
1023 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
1024 | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
1025 | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
1026
1027 /* section_flags: mask of all section flags */
1028 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
1029 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
1030 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
1031
1032 /* leading_symbol_char: is the first char of a user symbol
1033 predictable, and if so what is it */
1034 elf_symbol_leading_char,
1035
1036 /* ar_pad_char: pad character for filenames within an archive header
1037 FIXME: this really has nothing to do with ELF, this is a characteristic
1038 of the archiver and/or os and should be independently tunable */
1039 '/',
1040
1041 /* ar_max_namelen: maximum number of characters in an archive header
1042 FIXME: this really has nothing to do with ELF, this is a characteristic
1043 of the archiver and should be independently tunable. The System V ABI,
1044 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */
1045 15,
1046
1047 elf_match_priority,
1048
1049 /* Routines to byte-swap various sized integers from the data sections */
1050 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1051 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1052 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1053
1054 /* Routines to byte-swap various sized integers from the file headers */
1055 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1056 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1057 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1058
1059 /* bfd_check_format: check the format of a file being read */
1060 { _bfd_dummy_target, /* unknown format */
1061 bfd_elfNN_object_p, /* assembler/linker output (object file) */
1062 bfd_elfNN_archive_p, /* an archive */
1063 bfd_elfNN_core_file_p /* a core file */
1064 },
1065
1066 /* bfd_set_format: set the format of a file being written */
1067 { bfd_false,
1068 bfd_elfNN_mkobject,
1069 bfd_elfNN_mkarchive,
1070 bfd_elfNN_mkcorefile
1071 },
1072
1073 /* bfd_write_contents: write cached information into a file being written */
1074 { bfd_false,
1075 bfd_elfNN_write_object_contents,
1076 bfd_elfNN_write_archive_contents,
1077 bfd_elfNN_write_corefile_contents,
1078 },
1079
1080 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
1081 BFD_JUMP_TABLE_COPY (bfd_elfNN),
1082 BFD_JUMP_TABLE_CORE (bfd_elfNN),
1083 #ifdef bfd_elfNN_archive_functions
1084 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
1085 #elif defined USE_64_BIT_ARCHIVE
1086 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
1087 #else
1088 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
1089 #endif
1090 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
1091 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
1092 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
1093 BFD_JUMP_TABLE_LINK (bfd_elfNN),
1094 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
1095
1096 /* Alternative endian target. */
1097 #ifdef TARGET_BIG_SYM
1098 & TARGET_BIG_SYM,
1099 #else
1100 NULL,
1101 #endif
1102
1103 /* backend_data: */
1104 &elfNN_bed
1105 };
1106 #endif
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