PR ld/21334: Always call `_bfd_elf_link_renumber_dynsyms' if required
[external/binutils.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_find_nearest_line
50 #define bfd_elfNN_find_nearest_line     _bfd_elf_find_nearest_line
51 #endif
52 #ifndef bfd_elfNN_find_line
53 #define bfd_elfNN_find_line             _bfd_elf_find_line
54 #endif
55 #ifndef bfd_elfNN_find_inliner_info
56 #define bfd_elfNN_find_inliner_info     _bfd_elf_find_inliner_info
57 #endif
58 #define bfd_elfNN_read_minisymbols      _bfd_elf_read_minisymbols
59 #define bfd_elfNN_minisymbol_to_symbol  _bfd_elf_minisymbol_to_symbol
60 #define bfd_elfNN_get_dynamic_symtab_upper_bound \
61   _bfd_elf_get_dynamic_symtab_upper_bound
62 #define bfd_elfNN_get_lineno            _bfd_elf_get_lineno
63 #ifndef bfd_elfNN_get_reloc_upper_bound
64 #define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound
65 #endif
66 #ifndef bfd_elfNN_get_symbol_info
67 #define bfd_elfNN_get_symbol_info       _bfd_elf_get_symbol_info
68 #endif
69 #ifndef bfd_elfNN_get_symbol_version_string
70 #define bfd_elfNN_get_symbol_version_string \
71   _bfd_elf_get_symbol_version_string
72 #endif
73 #define bfd_elfNN_canonicalize_symtab   _bfd_elf_canonicalize_symtab
74 #define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound
75 #define bfd_elfNN_make_empty_symbol     _bfd_elf_make_empty_symbol
76 #ifndef bfd_elfNN_new_section_hook
77 #define bfd_elfNN_new_section_hook      _bfd_elf_new_section_hook
78 #endif
79 #define bfd_elfNN_set_arch_mach         _bfd_elf_set_arch_mach
80 #ifndef bfd_elfNN_set_section_contents
81 #define bfd_elfNN_set_section_contents  _bfd_elf_set_section_contents
82 #endif
83 #define bfd_elfNN_sizeof_headers        _bfd_elf_sizeof_headers
84 #define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents
85 #define bfd_elfNN_write_corefile_contents _bfd_elf_write_corefile_contents
86
87 #define bfd_elfNN_get_section_contents_in_window \
88   _bfd_generic_get_section_contents_in_window
89
90 #ifndef elf_backend_can_refcount
91 #define elf_backend_can_refcount 0
92 #endif
93 #ifndef elf_backend_want_got_plt
94 #define elf_backend_want_got_plt 0
95 #endif
96 #ifndef elf_backend_plt_readonly
97 #define elf_backend_plt_readonly 0
98 #endif
99 #ifndef elf_backend_want_plt_sym
100 #define elf_backend_want_plt_sym 0
101 #endif
102 #ifndef elf_backend_plt_not_loaded
103 #define elf_backend_plt_not_loaded 0
104 #endif
105 #ifndef elf_backend_plt_alignment
106 #define elf_backend_plt_alignment 2
107 #endif
108 #ifndef elf_backend_want_dynbss
109 #define elf_backend_want_dynbss 1
110 #endif
111 #ifndef elf_backend_want_dynrelro
112 #define elf_backend_want_dynrelro 0
113 #endif
114 #ifndef elf_backend_want_p_paddr_set_to_zero
115 #define elf_backend_want_p_paddr_set_to_zero 0
116 #endif
117 #ifndef elf_backend_no_page_alias
118 #define elf_backend_no_page_alias 0
119 #endif
120 #ifndef elf_backend_default_execstack
121 #define elf_backend_default_execstack 1
122 #endif
123 #ifndef elf_backend_caches_rawsize
124 #define elf_backend_caches_rawsize 0
125 #endif
126 #ifndef elf_backend_extern_protected_data
127 #define elf_backend_extern_protected_data 0
128 #endif
129 #ifndef elf_backend_always_renumber_dynsyms
130 #define elf_backend_always_renumber_dynsyms FALSE
131 #endif
132 #ifndef elf_backend_stack_align
133 #define elf_backend_stack_align 16
134 #endif
135 #ifndef elf_backend_strtab_flags
136 #define elf_backend_strtab_flags 0
137 #endif
138
139 #define bfd_elfNN_bfd_debug_info_start  bfd_void
140 #define bfd_elfNN_bfd_debug_info_end    bfd_void
141 #define bfd_elfNN_bfd_debug_info_accumulate \
142   ((void (*) (bfd*, struct bfd_section *)) bfd_void)
143
144 #ifndef bfd_elfNN_bfd_get_relocated_section_contents
145 #define bfd_elfNN_bfd_get_relocated_section_contents \
146   bfd_generic_get_relocated_section_contents
147 #endif
148
149 #ifndef bfd_elfNN_bfd_relax_section
150 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
151 #endif
152
153 #ifndef elf_backend_can_gc_sections
154 #define elf_backend_can_gc_sections 0
155 #endif
156 #ifndef elf_backend_can_refcount
157 #define elf_backend_can_refcount 0
158 #endif
159 #ifndef elf_backend_want_got_sym
160 #define elf_backend_want_got_sym 1
161 #endif
162 #ifndef elf_backend_gc_keep
163 #define elf_backend_gc_keep             _bfd_elf_gc_keep
164 #endif
165 #ifndef elf_backend_gc_mark_dynamic_ref
166 #define elf_backend_gc_mark_dynamic_ref bfd_elf_gc_mark_dynamic_ref_symbol
167 #endif
168 #ifndef elf_backend_gc_mark_hook
169 #define elf_backend_gc_mark_hook        _bfd_elf_gc_mark_hook
170 #endif
171 #ifndef elf_backend_gc_mark_extra_sections
172 #define elf_backend_gc_mark_extra_sections _bfd_elf_gc_mark_extra_sections
173 #endif
174 #ifndef elf_backend_gc_sweep_hook
175 #define elf_backend_gc_sweep_hook       NULL
176 #endif
177 #ifndef bfd_elfNN_bfd_gc_sections
178 #define bfd_elfNN_bfd_gc_sections bfd_elf_gc_sections
179 #endif
180
181 #ifndef bfd_elfNN_bfd_merge_sections
182 #define bfd_elfNN_bfd_merge_sections \
183   _bfd_elf_merge_sections
184 #endif
185
186 #ifndef bfd_elfNN_bfd_is_group_section
187 #define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section
188 #endif
189
190 #ifndef bfd_elfNN_bfd_discard_group
191 #define bfd_elfNN_bfd_discard_group bfd_generic_discard_group
192 #endif
193
194 #ifndef bfd_elfNN_section_already_linked
195 #define bfd_elfNN_section_already_linked \
196   _bfd_elf_section_already_linked
197 #endif
198
199 #ifndef bfd_elfNN_bfd_define_common_symbol
200 #define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol
201 #endif
202
203 #ifndef bfd_elfNN_bfd_lookup_section_flags
204 #define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags
205 #endif
206
207 #ifndef bfd_elfNN_bfd_make_debug_symbol
208 #define bfd_elfNN_bfd_make_debug_symbol \
209   ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
210 #endif
211
212 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
213 #define bfd_elfNN_bfd_copy_private_symbol_data \
214   _bfd_elf_copy_private_symbol_data
215 #endif
216
217 #ifndef bfd_elfNN_bfd_copy_private_section_data
218 #define bfd_elfNN_bfd_copy_private_section_data \
219   _bfd_elf_copy_private_section_data
220 #endif
221 #ifndef bfd_elfNN_bfd_copy_private_header_data
222 #define bfd_elfNN_bfd_copy_private_header_data \
223   _bfd_elf_copy_private_header_data
224 #endif
225 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
226 #define bfd_elfNN_bfd_copy_private_bfd_data \
227   _bfd_elf_copy_private_bfd_data
228 #endif
229 #ifndef bfd_elfNN_bfd_print_private_bfd_data
230 #define bfd_elfNN_bfd_print_private_bfd_data \
231   _bfd_elf_print_private_bfd_data
232 #endif
233 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
234 #define bfd_elfNN_bfd_merge_private_bfd_data \
235   ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_true)
236 #endif
237 #ifndef bfd_elfNN_bfd_set_private_flags
238 #define bfd_elfNN_bfd_set_private_flags \
239   ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
240 #endif
241 #ifndef bfd_elfNN_bfd_is_local_label_name
242 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
243 #endif
244 #ifndef bfd_elfNN_bfd_is_target_special_symbol
245 #define bfd_elfNN_bfd_is_target_special_symbol \
246   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
247 #endif
248
249 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
250 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
251   _bfd_elf_get_dynamic_reloc_upper_bound
252 #endif
253 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
254 #define bfd_elfNN_canonicalize_dynamic_reloc \
255   _bfd_elf_canonicalize_dynamic_reloc
256 #endif
257
258 #ifdef elf_backend_relocate_section
259 #ifndef bfd_elfNN_bfd_link_hash_table_create
260 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
261 #endif
262 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
263 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
264   _bfd_elf_copy_link_hash_symbol_type
265 #endif
266 #ifndef bfd_elfNN_bfd_link_add_symbols
267 #define bfd_elfNN_bfd_link_add_symbols  bfd_elf_link_add_symbols
268 #endif
269 #ifndef bfd_elfNN_bfd_final_link
270 #define bfd_elfNN_bfd_final_link        bfd_elf_final_link
271 #endif
272 #else /* ! defined (elf_backend_relocate_section) */
273 /* If no backend relocate_section routine, use the generic linker.
274    Note - this will prevent the port from being able to use some of
275    the other features of the ELF linker, because the generic hash structure
276    does not have the fields needed by the ELF linker.  In particular it
277    means that linking directly to S-records will not work.  */
278 #ifndef bfd_elfNN_bfd_link_hash_table_create
279 #define bfd_elfNN_bfd_link_hash_table_create \
280   _bfd_generic_link_hash_table_create
281 #endif
282 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
283 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
284   _bfd_generic_copy_link_hash_symbol_type
285 #endif
286 #ifndef bfd_elfNN_bfd_link_add_symbols
287 #define bfd_elfNN_bfd_link_add_symbols  _bfd_generic_link_add_symbols
288 #endif
289 #ifndef bfd_elfNN_bfd_final_link
290 #define bfd_elfNN_bfd_final_link        _bfd_generic_final_link
291 #endif
292 #endif /* ! defined (elf_backend_relocate_section) */
293
294 #ifndef bfd_elfNN_bfd_link_just_syms
295 #define bfd_elfNN_bfd_link_just_syms    _bfd_elf_link_just_syms
296 #endif
297
298 #ifndef bfd_elfNN_bfd_link_split_section
299 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
300 #endif
301
302 #ifndef bfd_elfNN_bfd_link_check_relocs
303 #define bfd_elfNN_bfd_link_check_relocs  _bfd_elf_link_check_relocs
304 #endif
305
306 #ifndef bfd_elfNN_archive_p
307 #define bfd_elfNN_archive_p bfd_generic_archive_p
308 #endif
309
310 #ifndef bfd_elfNN_write_archive_contents
311 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
312 #endif
313
314 #ifndef bfd_elfNN_mkobject
315 #define bfd_elfNN_mkobject bfd_elf_make_object
316 #endif
317
318 #ifndef bfd_elfNN_mkcorefile
319 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
320 #endif
321
322 #ifndef bfd_elfNN_mkarchive
323 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
324 #endif
325
326 #ifndef bfd_elfNN_print_symbol
327 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
328 #endif
329
330 #ifndef elf_symbol_leading_char
331 #define elf_symbol_leading_char 0
332 #endif
333
334 #ifndef elf_info_to_howto
335 #define elf_info_to_howto 0
336 #endif
337
338 #ifndef elf_info_to_howto_rel
339 #define elf_info_to_howto_rel 0
340 #endif
341
342 #ifndef elf_backend_arch_data
343 #define elf_backend_arch_data NULL
344 #endif
345
346 #ifndef ELF_TARGET_ID
347 #define ELF_TARGET_ID   GENERIC_ELF_DATA
348 #endif
349
350 #ifndef ELF_OSABI
351 #define ELF_OSABI ELFOSABI_NONE
352 #endif
353
354 #ifndef ELF_MAXPAGESIZE
355 # error ELF_MAXPAGESIZE is not defined
356 #define ELF_MAXPAGESIZE 1
357 #endif
358
359 #ifndef ELF_COMMONPAGESIZE
360 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
361 #endif
362
363 #ifndef ELF_MINPAGESIZE
364 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
365 #endif
366
367 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
368 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
369 #endif
370 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
371 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
372 #endif
373
374 #ifndef ELF_DYNAMIC_SEC_FLAGS
375 /* Note that we set the SEC_IN_MEMORY flag for these sections.  */
376 #define ELF_DYNAMIC_SEC_FLAGS                   \
377   (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS      \
378    | SEC_IN_MEMORY | SEC_LINKER_CREATED)
379 #endif
380
381 #ifndef elf_backend_collect
382 #define elf_backend_collect FALSE
383 #endif
384 #ifndef elf_backend_type_change_ok
385 #define elf_backend_type_change_ok FALSE
386 #endif
387
388 #ifndef elf_backend_sym_is_global
389 #define elf_backend_sym_is_global       0
390 #endif
391 #ifndef elf_backend_object_p
392 #define elf_backend_object_p            0
393 #endif
394 #ifndef elf_backend_symbol_processing
395 #define elf_backend_symbol_processing   0
396 #endif
397 #ifndef elf_backend_symbol_table_processing
398 #define elf_backend_symbol_table_processing     0
399 #endif
400 #ifndef elf_backend_get_symbol_type
401 #define elf_backend_get_symbol_type 0
402 #endif
403 #ifndef elf_backend_archive_symbol_lookup
404 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
405 #endif
406 #ifndef elf_backend_name_local_section_symbols
407 #define elf_backend_name_local_section_symbols  0
408 #endif
409 #ifndef elf_backend_section_processing
410 #define elf_backend_section_processing  0
411 #endif
412 #ifndef elf_backend_section_from_shdr
413 #define elf_backend_section_from_shdr   _bfd_elf_make_section_from_shdr
414 #endif
415 #ifndef elf_backend_section_flags
416 #define elf_backend_section_flags       0
417 #endif
418 #ifndef elf_backend_get_sec_type_attr
419 #define elf_backend_get_sec_type_attr   _bfd_elf_get_sec_type_attr
420 #endif
421 #ifndef elf_backend_section_from_phdr
422 #define elf_backend_section_from_phdr   _bfd_elf_make_section_from_phdr
423 #endif
424 #ifndef elf_backend_fake_sections
425 #define elf_backend_fake_sections       0
426 #endif
427 #ifndef elf_backend_section_from_bfd_section
428 #define elf_backend_section_from_bfd_section    0
429 #endif
430 #ifndef elf_backend_add_symbol_hook
431 #define elf_backend_add_symbol_hook     0
432 #endif
433 #ifndef elf_backend_link_output_symbol_hook
434 #define elf_backend_link_output_symbol_hook 0
435 #endif
436 #ifndef elf_backend_create_dynamic_sections
437 #define elf_backend_create_dynamic_sections 0
438 #endif
439 #ifndef elf_backend_omit_section_dynsym
440 #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym
441 #endif
442 #ifndef elf_backend_relocs_compatible
443 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
444 #endif
445 #ifndef elf_backend_check_relocs
446 #define elf_backend_check_relocs        0
447 #endif
448 #ifndef elf_backend_check_directives
449 #define elf_backend_check_directives    0
450 #endif
451 #ifndef elf_backend_notice_as_needed
452 #define elf_backend_notice_as_needed    _bfd_elf_notice_as_needed
453 #endif
454 #ifndef elf_backend_adjust_dynamic_symbol
455 #define elf_backend_adjust_dynamic_symbol 0
456 #endif
457 #ifndef elf_backend_always_size_sections
458 #define elf_backend_always_size_sections 0
459 #endif
460 #ifndef elf_backend_size_dynamic_sections
461 #define elf_backend_size_dynamic_sections 0
462 #endif
463 #ifndef elf_backend_init_index_section
464 #define elf_backend_init_index_section \
465  ((void (*) (bfd *, struct bfd_link_info *)) bfd_void)
466 #endif
467 #ifndef elf_backend_relocate_section
468 #define elf_backend_relocate_section    0
469 #endif
470 #ifndef elf_backend_finish_dynamic_symbol
471 #define elf_backend_finish_dynamic_symbol       0
472 #endif
473 #ifndef elf_backend_finish_dynamic_sections
474 #define elf_backend_finish_dynamic_sections     0
475 #endif
476 #ifndef elf_backend_begin_write_processing
477 #define elf_backend_begin_write_processing      0
478 #endif
479 #ifndef elf_backend_final_write_processing
480 #define elf_backend_final_write_processing      0
481 #endif
482 #ifndef elf_backend_additional_program_headers
483 #define elf_backend_additional_program_headers  0
484 #endif
485 #ifndef elf_backend_modify_segment_map
486 #define elf_backend_modify_segment_map  0
487 #endif
488 #ifndef elf_backend_modify_program_headers
489 #define elf_backend_modify_program_headers      0
490 #endif
491 #ifndef elf_backend_allow_non_load_phdr
492 #define elf_backend_allow_non_load_phdr \
493   ((bfd_boolean (*) (bfd *, const Elf_Internal_Phdr *, unsigned)) bfd_false)
494 #endif
495 #ifndef elf_backend_ecoff_debug_swap
496 #define elf_backend_ecoff_debug_swap    0
497 #endif
498 #ifndef elf_backend_bfd_from_remote_memory
499 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
500 #endif
501 #ifndef elf_backend_got_header_size
502 #define elf_backend_got_header_size     0
503 #endif
504 #ifndef elf_backend_got_elt_size
505 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
506 #endif
507 #ifndef elf_backend_obj_attrs_vendor
508 #define elf_backend_obj_attrs_vendor            NULL
509 #endif
510 #ifndef elf_backend_obj_attrs_section
511 #define elf_backend_obj_attrs_section           NULL
512 #endif
513 #ifndef elf_backend_obj_attrs_arg_type
514 #define elf_backend_obj_attrs_arg_type          NULL
515 #endif
516 #ifndef elf_backend_obj_attrs_section_type
517 #define elf_backend_obj_attrs_section_type              SHT_GNU_ATTRIBUTES
518 #endif
519 #ifndef elf_backend_obj_attrs_order
520 #define elf_backend_obj_attrs_order             NULL
521 #endif
522 #ifndef elf_backend_obj_attrs_handle_unknown
523 #define elf_backend_obj_attrs_handle_unknown    NULL
524 #endif
525 #ifndef elf_backend_parse_gnu_properties
526 #define elf_backend_parse_gnu_properties        NULL
527 #endif
528 #ifndef elf_backend_merge_gnu_properties
529 #define elf_backend_merge_gnu_properties        NULL
530 #endif
531 #ifndef elf_backend_setup_gnu_properties
532 #define elf_backend_setup_gnu_properties        _bfd_elf_link_setup_gnu_properties
533 #endif
534 #ifndef elf_backend_static_tls_alignment
535 #define elf_backend_static_tls_alignment        1
536 #endif
537 #ifndef elf_backend_post_process_headers
538 #define elf_backend_post_process_headers        _bfd_elf_post_process_headers
539 #endif
540 #ifndef elf_backend_print_symbol_all
541 #define elf_backend_print_symbol_all            NULL
542 #endif
543 #ifndef elf_backend_output_arch_local_syms
544 #define elf_backend_output_arch_local_syms      NULL
545 #endif
546 #ifndef elf_backend_output_arch_syms
547 #define elf_backend_output_arch_syms            NULL
548 #endif
549 #ifndef elf_backend_filter_implib_symbols
550 #define elf_backend_filter_implib_symbols       NULL
551 #endif
552 #ifndef elf_backend_copy_indirect_symbol
553 #define elf_backend_copy_indirect_symbol        _bfd_elf_link_hash_copy_indirect
554 #endif
555 #ifndef elf_backend_hide_symbol
556 #define elf_backend_hide_symbol                 _bfd_elf_link_hash_hide_symbol
557 #endif
558 #ifndef elf_backend_fixup_symbol
559 #define elf_backend_fixup_symbol                NULL
560 #endif
561 #ifndef elf_backend_merge_symbol_attribute
562 #define elf_backend_merge_symbol_attribute      NULL
563 #endif
564 #ifndef elf_backend_get_target_dtag
565 #define elf_backend_get_target_dtag             NULL
566 #endif
567 #ifndef elf_backend_ignore_undef_symbol
568 #define elf_backend_ignore_undef_symbol         NULL
569 #endif
570 #ifndef elf_backend_emit_relocs
571 #define elf_backend_emit_relocs                 _bfd_elf_link_output_relocs
572 #endif
573 #ifndef elf_backend_update_relocs
574 #define elf_backend_update_relocs               NULL
575 #endif
576 #ifndef elf_backend_count_relocs
577 #define elf_backend_count_relocs                NULL
578 #endif
579 #ifndef elf_backend_count_additional_relocs
580 #define elf_backend_count_additional_relocs     NULL
581 #endif
582 #ifndef elf_backend_sort_relocs_p
583 #define elf_backend_sort_relocs_p               NULL
584 #endif
585 #ifndef elf_backend_grok_prstatus
586 #define elf_backend_grok_prstatus               NULL
587 #endif
588 #ifndef elf_backend_grok_psinfo
589 #define elf_backend_grok_psinfo                 NULL
590 #endif
591 #ifndef elf_backend_write_core_note
592 #define elf_backend_write_core_note             NULL
593 #endif
594 #ifndef elf_backend_lookup_section_flags_hook
595 #define elf_backend_lookup_section_flags_hook   NULL
596 #endif
597 #ifndef elf_backend_reloc_type_class
598 #define elf_backend_reloc_type_class            _bfd_elf_reloc_type_class
599 #endif
600 #ifndef elf_backend_discard_info
601 #define elf_backend_discard_info                NULL
602 #endif
603 #ifndef elf_backend_ignore_discarded_relocs
604 #define elf_backend_ignore_discarded_relocs     NULL
605 #endif
606 #ifndef elf_backend_action_discarded
607 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
608 #endif
609 #ifndef elf_backend_eh_frame_address_size
610 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
611 #endif
612 #ifndef elf_backend_can_make_relative_eh_frame
613 #define elf_backend_can_make_relative_eh_frame  _bfd_elf_can_make_relative
614 #endif
615 #ifndef elf_backend_can_make_lsda_relative_eh_frame
616 #define elf_backend_can_make_lsda_relative_eh_frame     _bfd_elf_can_make_relative
617 #endif
618 #ifndef elf_backend_encode_eh_address
619 #define elf_backend_encode_eh_address           _bfd_elf_encode_eh_address
620 #endif
621 #ifndef elf_backend_write_section
622 #define elf_backend_write_section               NULL
623 #endif
624 #ifndef elf_backend_mips_irix_compat
625 #define elf_backend_mips_irix_compat            NULL
626 #endif
627 #ifndef elf_backend_mips_rtype_to_howto
628 #define elf_backend_mips_rtype_to_howto         NULL
629 #endif
630
631 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
632    sections, but not both.  They defined USE_REL to indicate SHT_REL
633    sections, and left it undefined to indicated SHT_RELA sections.
634    For backwards compatibility, we still support this usage.  */
635 #ifndef USE_REL
636 #define USE_REL 0
637 #endif
638
639 /* Use these in new code.  */
640 #ifndef elf_backend_may_use_rel_p
641 #define elf_backend_may_use_rel_p USE_REL
642 #endif
643 #ifndef elf_backend_may_use_rela_p
644 #define elf_backend_may_use_rela_p !USE_REL
645 #endif
646 #ifndef elf_backend_default_use_rela_p
647 #define elf_backend_default_use_rela_p !USE_REL
648 #endif
649 #ifndef elf_backend_rela_plts_and_copies_p
650 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
651 #endif
652
653 #ifndef elf_backend_rela_normal
654 #define elf_backend_rela_normal 0
655 #endif
656
657 #ifndef elf_backend_dtrel_excludes_plt
658 #define elf_backend_dtrel_excludes_plt 0
659 #endif
660
661 #ifndef elf_backend_plt_sym_val
662 #define elf_backend_plt_sym_val NULL
663 #endif
664 #ifndef elf_backend_relplt_name
665 #define elf_backend_relplt_name NULL
666 #endif
667
668 #ifndef ELF_MACHINE_ALT1
669 #define ELF_MACHINE_ALT1 0
670 #endif
671
672 #ifndef ELF_MACHINE_ALT2
673 #define ELF_MACHINE_ALT2 0
674 #endif
675
676 #ifndef elf_backend_size_info
677 #define elf_backend_size_info _bfd_elfNN_size_info
678 #endif
679
680 #ifndef elf_backend_special_sections
681 #define elf_backend_special_sections NULL
682 #endif
683
684 #ifndef elf_backend_sign_extend_vma
685 #define elf_backend_sign_extend_vma 0
686 #endif
687
688 #ifndef elf_backend_link_order_error_handler
689 #define elf_backend_link_order_error_handler _bfd_error_handler
690 #endif
691
692 #ifndef elf_backend_common_definition
693 #define elf_backend_common_definition _bfd_elf_common_definition
694 #endif
695
696 #ifndef elf_backend_common_section_index
697 #define elf_backend_common_section_index _bfd_elf_common_section_index
698 #endif
699
700 #ifndef elf_backend_common_section
701 #define elf_backend_common_section _bfd_elf_common_section
702 #endif
703
704 #ifndef elf_backend_merge_symbol
705 #define elf_backend_merge_symbol NULL
706 #endif
707
708 #ifndef elf_backend_hash_symbol
709 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
710 #endif
711
712 #ifndef elf_backend_is_function_type
713 #define elf_backend_is_function_type _bfd_elf_is_function_type
714 #endif
715
716 #ifndef elf_backend_maybe_function_sym
717 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
718 #endif
719
720 #ifndef elf_backend_get_reloc_section
721 #define elf_backend_get_reloc_section _bfd_elf_plt_get_reloc_section
722 #endif
723
724 #ifndef elf_backend_copy_special_section_fields
725 #define elf_backend_copy_special_section_fields NULL
726 #endif
727
728 #ifndef elf_backend_compact_eh_encoding
729 #define elf_backend_compact_eh_encoding NULL
730 #endif
731
732 #ifndef elf_backend_cant_unwind_opcode
733 #define elf_backend_cant_unwind_opcode 0
734 #endif
735
736 #ifndef elf_match_priority
737 #define elf_match_priority \
738   (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
739 #endif
740
741 extern const struct elf_size_info _bfd_elfNN_size_info;
742
743 static struct elf_backend_data elfNN_bed =
744 {
745   ELF_ARCH,                     /* arch */
746   ELF_TARGET_ID,                /* target_id */
747   ELF_MACHINE_CODE,             /* elf_machine_code */
748   ELF_OSABI,                    /* elf_osabi  */
749   ELF_MAXPAGESIZE,              /* maxpagesize */
750   ELF_MINPAGESIZE,              /* minpagesize */
751   ELF_COMMONPAGESIZE,           /* commonpagesize */
752   ELF_DYNAMIC_SEC_FLAGS,        /* dynamic_sec_flags */
753   elf_backend_arch_data,
754   elf_info_to_howto,
755   elf_info_to_howto_rel,
756   elf_backend_sym_is_global,
757   elf_backend_object_p,
758   elf_backend_symbol_processing,
759   elf_backend_symbol_table_processing,
760   elf_backend_get_symbol_type,
761   elf_backend_archive_symbol_lookup,
762   elf_backend_name_local_section_symbols,
763   elf_backend_section_processing,
764   elf_backend_section_from_shdr,
765   elf_backend_section_flags,
766   elf_backend_get_sec_type_attr,
767   elf_backend_section_from_phdr,
768   elf_backend_fake_sections,
769   elf_backend_section_from_bfd_section,
770   elf_backend_add_symbol_hook,
771   elf_backend_link_output_symbol_hook,
772   elf_backend_create_dynamic_sections,
773   elf_backend_omit_section_dynsym,
774   elf_backend_relocs_compatible,
775   elf_backend_check_relocs,
776   elf_backend_check_directives,
777   elf_backend_notice_as_needed,
778   elf_backend_adjust_dynamic_symbol,
779   elf_backend_always_size_sections,
780   elf_backend_size_dynamic_sections,
781   elf_backend_init_index_section,
782   elf_backend_relocate_section,
783   elf_backend_finish_dynamic_symbol,
784   elf_backend_finish_dynamic_sections,
785   elf_backend_begin_write_processing,
786   elf_backend_final_write_processing,
787   elf_backend_additional_program_headers,
788   elf_backend_modify_segment_map,
789   elf_backend_modify_program_headers,
790   elf_backend_allow_non_load_phdr,
791   elf_backend_gc_keep,
792   elf_backend_gc_mark_dynamic_ref,
793   elf_backend_gc_mark_hook,
794   elf_backend_gc_mark_extra_sections,
795   elf_backend_gc_sweep_hook,
796   elf_backend_post_process_headers,
797   elf_backend_print_symbol_all,
798   elf_backend_output_arch_local_syms,
799   elf_backend_output_arch_syms,
800   elf_backend_filter_implib_symbols,
801   elf_backend_copy_indirect_symbol,
802   elf_backend_hide_symbol,
803   elf_backend_fixup_symbol,
804   elf_backend_merge_symbol_attribute,
805   elf_backend_get_target_dtag,
806   elf_backend_ignore_undef_symbol,
807   elf_backend_emit_relocs,
808   elf_backend_update_relocs,
809   elf_backend_count_relocs,
810   elf_backend_count_additional_relocs,
811   elf_backend_sort_relocs_p,
812   elf_backend_grok_prstatus,
813   elf_backend_grok_psinfo,
814   elf_backend_write_core_note,
815   elf_backend_lookup_section_flags_hook,
816   elf_backend_reloc_type_class,
817   elf_backend_discard_info,
818   elf_backend_ignore_discarded_relocs,
819   elf_backend_action_discarded,
820   elf_backend_eh_frame_address_size,
821   elf_backend_can_make_relative_eh_frame,
822   elf_backend_can_make_lsda_relative_eh_frame,
823   elf_backend_encode_eh_address,
824   elf_backend_write_section,
825   elf_backend_mips_irix_compat,
826   elf_backend_mips_rtype_to_howto,
827   elf_backend_ecoff_debug_swap,
828   elf_backend_bfd_from_remote_memory,
829   elf_backend_plt_sym_val,
830   elf_backend_common_definition,
831   elf_backend_common_section_index,
832   elf_backend_common_section,
833   elf_backend_merge_symbol,
834   elf_backend_hash_symbol,
835   elf_backend_is_function_type,
836   elf_backend_maybe_function_sym,
837   elf_backend_get_reloc_section,
838   elf_backend_copy_special_section_fields,
839   elf_backend_link_order_error_handler,
840   elf_backend_relplt_name,
841   ELF_MACHINE_ALT1,
842   ELF_MACHINE_ALT2,
843   &elf_backend_size_info,
844   elf_backend_special_sections,
845   elf_backend_got_header_size,
846   elf_backend_got_elt_size,
847   elf_backend_obj_attrs_vendor,
848   elf_backend_obj_attrs_section,
849   elf_backend_obj_attrs_arg_type,
850   elf_backend_obj_attrs_section_type,
851   elf_backend_obj_attrs_order,
852   elf_backend_obj_attrs_handle_unknown,
853   elf_backend_parse_gnu_properties,
854   elf_backend_merge_gnu_properties,
855   elf_backend_setup_gnu_properties,
856   elf_backend_compact_eh_encoding,
857   elf_backend_cant_unwind_opcode,
858   elf_backend_static_tls_alignment,
859   elf_backend_stack_align,
860   elf_backend_strtab_flags,
861   elf_backend_collect,
862   elf_backend_type_change_ok,
863   elf_backend_may_use_rel_p,
864   elf_backend_may_use_rela_p,
865   elf_backend_default_use_rela_p,
866   elf_backend_rela_plts_and_copies_p,
867   elf_backend_rela_normal,
868   elf_backend_dtrel_excludes_plt,
869   elf_backend_sign_extend_vma,
870   elf_backend_want_got_plt,
871   elf_backend_plt_readonly,
872   elf_backend_want_plt_sym,
873   elf_backend_plt_not_loaded,
874   elf_backend_plt_alignment,
875   elf_backend_can_gc_sections,
876   elf_backend_can_refcount,
877   elf_backend_want_got_sym,
878   elf_backend_want_dynbss,
879   elf_backend_want_dynrelro,
880   elf_backend_want_p_paddr_set_to_zero,
881   elf_backend_no_page_alias,
882   elf_backend_default_execstack,
883   elf_backend_caches_rawsize,
884   elf_backend_extern_protected_data,
885   elf_backend_always_renumber_dynsyms
886 };
887
888 /* Forward declaration for use when initialising alternative_target field.  */
889 #ifdef TARGET_LITTLE_SYM
890 extern const bfd_target TARGET_LITTLE_SYM;
891 #endif
892
893 #ifdef TARGET_BIG_SYM
894 const bfd_target TARGET_BIG_SYM =
895 {
896   /* name: identify kind of target */
897   TARGET_BIG_NAME,
898
899   /* flavour: general indication about file */
900   bfd_target_elf_flavour,
901
902   /* byteorder: data is big endian */
903   BFD_ENDIAN_BIG,
904
905   /* header_byteorder: header is also big endian */
906   BFD_ENDIAN_BIG,
907
908   /* object_flags: mask of all file flags */
909   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
910    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
911    | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
912
913   /* section_flags: mask of all section flags */
914   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
915    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
916    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
917
918    /* leading_symbol_char: is the first char of a user symbol
919       predictable, and if so what is it */
920   elf_symbol_leading_char,
921
922   /* ar_pad_char: pad character for filenames within an archive header
923      FIXME:  this really has nothing to do with ELF, this is a characteristic
924      of the archiver and/or os and should be independently tunable */
925   '/',
926
927   /* ar_max_namelen: maximum number of characters in an archive header
928      FIXME:  this really has nothing to do with ELF, this is a characteristic
929      of the archiver and should be independently tunable.  The System V ABI,
930      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
931   15,
932
933   elf_match_priority,
934
935   /* Routines to byte-swap various sized integers from the data sections */
936   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
937     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
938     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
939
940   /* Routines to byte-swap various sized integers from the file headers */
941   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
942     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
943     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
944
945   /* bfd_check_format: check the format of a file being read */
946   { _bfd_dummy_target,          /* unknown format */
947     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
948     bfd_elfNN_archive_p,        /* an archive */
949     bfd_elfNN_core_file_p       /* a core file */
950   },
951
952   /* bfd_set_format: set the format of a file being written */
953   { bfd_false,
954     bfd_elfNN_mkobject,
955     bfd_elfNN_mkarchive,
956     bfd_elfNN_mkcorefile
957   },
958
959   /* bfd_write_contents: write cached information into a file being written */
960   { bfd_false,
961     bfd_elfNN_write_object_contents,
962     bfd_elfNN_write_archive_contents,
963     bfd_elfNN_write_corefile_contents,
964   },
965
966   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
967   BFD_JUMP_TABLE_COPY (bfd_elfNN),
968   BFD_JUMP_TABLE_CORE (bfd_elfNN),
969 #ifdef bfd_elfNN_archive_functions
970   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
971 #elif defined USE_64_BIT_ARCHIVE
972   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
973 #else
974   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
975 #endif
976   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
977   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
978   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
979   BFD_JUMP_TABLE_LINK (bfd_elfNN),
980   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
981
982   /* Alternative endian target.  */
983 #ifdef TARGET_LITTLE_SYM
984   & TARGET_LITTLE_SYM,
985 #else
986   NULL,
987 #endif
988
989   /* backend_data: */
990   &elfNN_bed
991 };
992 #endif
993
994 #ifdef TARGET_LITTLE_SYM
995 const bfd_target TARGET_LITTLE_SYM =
996 {
997   /* name: identify kind of target */
998   TARGET_LITTLE_NAME,
999
1000   /* flavour: general indication about file */
1001   bfd_target_elf_flavour,
1002
1003   /* byteorder: data is little endian */
1004   BFD_ENDIAN_LITTLE,
1005
1006   /* header_byteorder: header is also little endian */
1007   BFD_ENDIAN_LITTLE,
1008
1009   /* object_flags: mask of all file flags */
1010   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
1011    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
1012    | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
1013
1014   /* section_flags: mask of all section flags */
1015   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
1016    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
1017    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
1018
1019    /* leading_symbol_char: is the first char of a user symbol
1020       predictable, and if so what is it */
1021   elf_symbol_leading_char,
1022
1023   /* ar_pad_char: pad character for filenames within an archive header
1024      FIXME:  this really has nothing to do with ELF, this is a characteristic
1025      of the archiver and/or os and should be independently tunable */
1026   '/',
1027
1028   /* ar_max_namelen: maximum number of characters in an archive header
1029      FIXME:  this really has nothing to do with ELF, this is a characteristic
1030      of the archiver and should be independently tunable.  The System V ABI,
1031      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
1032   15,
1033
1034   elf_match_priority,
1035
1036   /* Routines to byte-swap various sized integers from the data sections */
1037   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1038     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1039     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1040
1041   /* Routines to byte-swap various sized integers from the file headers */
1042   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1043     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1044     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1045
1046   /* bfd_check_format: check the format of a file being read */
1047   { _bfd_dummy_target,          /* unknown format */
1048     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
1049     bfd_elfNN_archive_p,        /* an archive */
1050     bfd_elfNN_core_file_p       /* a core file */
1051   },
1052
1053   /* bfd_set_format: set the format of a file being written */
1054   { bfd_false,
1055     bfd_elfNN_mkobject,
1056     bfd_elfNN_mkarchive,
1057     bfd_elfNN_mkcorefile
1058   },
1059
1060   /* bfd_write_contents: write cached information into a file being written */
1061   { bfd_false,
1062     bfd_elfNN_write_object_contents,
1063     bfd_elfNN_write_archive_contents,
1064     bfd_elfNN_write_corefile_contents,
1065   },
1066
1067   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
1068   BFD_JUMP_TABLE_COPY (bfd_elfNN),
1069   BFD_JUMP_TABLE_CORE (bfd_elfNN),
1070 #ifdef bfd_elfNN_archive_functions
1071   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
1072 #elif defined USE_64_BIT_ARCHIVE
1073   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
1074 #else
1075   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
1076 #endif
1077   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
1078   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
1079   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
1080   BFD_JUMP_TABLE_LINK (bfd_elfNN),
1081   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
1082
1083   /* Alternative endian target.  */
1084 #ifdef TARGET_BIG_SYM
1085   & TARGET_BIG_SYM,
1086 #else
1087   NULL,
1088 #endif
1089
1090   /* backend_data: */
1091   &elfNN_bed
1092 };
1093 #endif