Have info_to_howto functions return a success/fail status. Check this result. Stop...
[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_lookup_section_flags
209 #define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags
210 #endif
211
212 #ifndef bfd_elfNN_bfd_make_debug_symbol
213 #define bfd_elfNN_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
214 #endif
215
216 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
217 #define bfd_elfNN_bfd_copy_private_symbol_data \
218 _bfd_elf_copy_private_symbol_data
219 #endif
220
221 #ifndef bfd_elfNN_bfd_copy_private_section_data
222 #define bfd_elfNN_bfd_copy_private_section_data \
223 _bfd_elf_copy_private_section_data
224 #endif
225 #ifndef bfd_elfNN_bfd_copy_private_header_data
226 #define bfd_elfNN_bfd_copy_private_header_data \
227 _bfd_elf_copy_private_header_data
228 #endif
229 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
230 #define bfd_elfNN_bfd_copy_private_bfd_data \
231 _bfd_elf_copy_private_bfd_data
232 #endif
233 #ifndef bfd_elfNN_bfd_print_private_bfd_data
234 #define bfd_elfNN_bfd_print_private_bfd_data \
235 _bfd_elf_print_private_bfd_data
236 #endif
237 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
238 #define bfd_elfNN_bfd_merge_private_bfd_data _bfd_bool_bfd_link_true
239 #endif
240 #ifndef bfd_elfNN_bfd_set_private_flags
241 #define bfd_elfNN_bfd_set_private_flags _bfd_bool_bfd_uint_true
242 #endif
243 #ifndef bfd_elfNN_bfd_is_local_label_name
244 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
245 #endif
246 #ifndef bfd_elfNN_bfd_is_target_special_symbol
247 #define bfd_elfNN_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
248 #endif
249
250 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
251 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
252 _bfd_elf_get_dynamic_reloc_upper_bound
253 #endif
254 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
255 #define bfd_elfNN_canonicalize_dynamic_reloc \
256 _bfd_elf_canonicalize_dynamic_reloc
257 #endif
258
259 #ifdef elf_backend_relocate_section
260 #ifndef bfd_elfNN_bfd_link_hash_table_create
261 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
262 #endif
263 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
264 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
265 _bfd_elf_copy_link_hash_symbol_type
266 #endif
267 #ifndef bfd_elfNN_bfd_link_add_symbols
268 #define bfd_elfNN_bfd_link_add_symbols bfd_elf_link_add_symbols
269 #endif
270 #ifndef bfd_elfNN_bfd_define_start_stop
271 #define bfd_elfNN_bfd_define_start_stop bfd_elf_define_start_stop
272 #endif
273 #ifndef bfd_elfNN_bfd_final_link
274 #define bfd_elfNN_bfd_final_link bfd_elf_final_link
275 #endif
276 #else /* ! defined (elf_backend_relocate_section) */
277 /* If no backend relocate_section routine, use the generic linker.
278 Note - this will prevent the port from being able to use some of
279 the other features of the ELF linker, because the generic hash structure
280 does not have the fields needed by the ELF linker. In particular it
281 means that linking directly to S-records will not work. */
282 #ifndef bfd_elfNN_bfd_link_hash_table_create
283 #define bfd_elfNN_bfd_link_hash_table_create \
284 _bfd_generic_link_hash_table_create
285 #endif
286 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
287 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
288 _bfd_generic_copy_link_hash_symbol_type
289 #endif
290 #ifndef bfd_elfNN_bfd_link_add_symbols
291 #define bfd_elfNN_bfd_link_add_symbols _bfd_generic_link_add_symbols
292 #endif
293 #ifndef bfd_elfNN_bfd_define_start_stop
294 #define bfd_elfNN_bfd_define_start_stop bfd_generic_define_start_stop
295 #endif
296 #ifndef bfd_elfNN_bfd_final_link
297 #define bfd_elfNN_bfd_final_link _bfd_generic_final_link
298 #endif
299 #endif /* ! defined (elf_backend_relocate_section) */
300
301 #ifndef bfd_elfNN_bfd_link_just_syms
302 #define bfd_elfNN_bfd_link_just_syms _bfd_elf_link_just_syms
303 #endif
304
305 #ifndef bfd_elfNN_bfd_link_split_section
306 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
307 #endif
308
309 #ifndef bfd_elfNN_bfd_link_check_relocs
310 #define bfd_elfNN_bfd_link_check_relocs _bfd_elf_link_check_relocs
311 #endif
312
313 #ifndef bfd_elfNN_archive_p
314 #define bfd_elfNN_archive_p bfd_generic_archive_p
315 #endif
316
317 #ifndef bfd_elfNN_write_archive_contents
318 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
319 #endif
320
321 #ifndef bfd_elfNN_mkobject
322 #define bfd_elfNN_mkobject bfd_elf_make_object
323 #endif
324
325 #ifndef bfd_elfNN_mkcorefile
326 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
327 #endif
328
329 #ifndef bfd_elfNN_mkarchive
330 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
331 #endif
332
333 #ifndef bfd_elfNN_print_symbol
334 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
335 #endif
336
337 #ifndef elf_symbol_leading_char
338 #define elf_symbol_leading_char 0
339 #endif
340
341 #ifndef elf_info_to_howto
342 #define elf_info_to_howto NULL
343 #endif
344
345 #ifndef elf_info_to_howto_rel
346 #define elf_info_to_howto_rel NULL
347 #endif
348
349 #ifndef elf_backend_arch_data
350 #define elf_backend_arch_data NULL
351 #endif
352
353 #ifndef ELF_TARGET_ID
354 #define ELF_TARGET_ID GENERIC_ELF_DATA
355 #endif
356
357 #ifndef ELF_OSABI
358 #define ELF_OSABI ELFOSABI_NONE
359 #endif
360
361 #ifndef ELF_MAXPAGESIZE
362 # error ELF_MAXPAGESIZE is not defined
363 #define ELF_MAXPAGESIZE 1
364 #endif
365
366 #ifndef ELF_COMMONPAGESIZE
367 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
368 #endif
369
370 #ifndef ELF_MINPAGESIZE
371 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
372 #endif
373
374 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
375 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
376 #endif
377 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
378 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
379 #endif
380
381 #ifndef ELF_DYNAMIC_SEC_FLAGS
382 /* Note that we set the SEC_IN_MEMORY flag for these sections. */
383 #define ELF_DYNAMIC_SEC_FLAGS \
384 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS \
385 | SEC_IN_MEMORY | SEC_LINKER_CREATED)
386 #endif
387
388 #ifndef elf_backend_collect
389 #define elf_backend_collect FALSE
390 #endif
391 #ifndef elf_backend_type_change_ok
392 #define elf_backend_type_change_ok FALSE
393 #endif
394
395 #ifndef elf_backend_sym_is_global
396 #define elf_backend_sym_is_global 0
397 #endif
398 #ifndef elf_backend_object_p
399 #define elf_backend_object_p 0
400 #endif
401 #ifndef elf_backend_symbol_processing
402 #define elf_backend_symbol_processing 0
403 #endif
404 #ifndef elf_backend_symbol_table_processing
405 #define elf_backend_symbol_table_processing 0
406 #endif
407 #ifndef elf_backend_get_symbol_type
408 #define elf_backend_get_symbol_type 0
409 #endif
410 #ifndef elf_backend_archive_symbol_lookup
411 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
412 #endif
413 #ifndef elf_backend_name_local_section_symbols
414 #define elf_backend_name_local_section_symbols 0
415 #endif
416 #ifndef elf_backend_section_processing
417 #define elf_backend_section_processing 0
418 #endif
419 #ifndef elf_backend_section_from_shdr
420 #define elf_backend_section_from_shdr _bfd_elf_make_section_from_shdr
421 #endif
422 #ifndef elf_backend_section_flags
423 #define elf_backend_section_flags 0
424 #endif
425 #ifndef elf_backend_get_sec_type_attr
426 #define elf_backend_get_sec_type_attr _bfd_elf_get_sec_type_attr
427 #endif
428 #ifndef elf_backend_section_from_phdr
429 #define elf_backend_section_from_phdr _bfd_elf_make_section_from_phdr
430 #endif
431 #ifndef elf_backend_fake_sections
432 #define elf_backend_fake_sections 0
433 #endif
434 #ifndef elf_backend_section_from_bfd_section
435 #define elf_backend_section_from_bfd_section 0
436 #endif
437 #ifndef elf_backend_add_symbol_hook
438 #define elf_backend_add_symbol_hook 0
439 #endif
440 #ifndef elf_backend_link_output_symbol_hook
441 #define elf_backend_link_output_symbol_hook 0
442 #endif
443 #ifndef elf_backend_create_dynamic_sections
444 #define elf_backend_create_dynamic_sections 0
445 #endif
446 #ifndef elf_backend_omit_section_dynsym
447 #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_default
448 #endif
449 #ifndef elf_backend_relocs_compatible
450 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
451 #endif
452 #ifndef elf_backend_check_relocs
453 #define elf_backend_check_relocs 0
454 #endif
455 #ifndef elf_backend_check_directives
456 #define elf_backend_check_directives 0
457 #endif
458 #ifndef elf_backend_notice_as_needed
459 #define elf_backend_notice_as_needed _bfd_elf_notice_as_needed
460 #endif
461 #ifndef elf_backend_adjust_dynamic_symbol
462 #define elf_backend_adjust_dynamic_symbol 0
463 #endif
464 #ifndef elf_backend_always_size_sections
465 #define elf_backend_always_size_sections 0
466 #endif
467 #ifndef elf_backend_size_dynamic_sections
468 #define elf_backend_size_dynamic_sections 0
469 #endif
470 #ifndef elf_backend_init_index_section
471 #define elf_backend_init_index_section _bfd_void_bfd_link
472 #endif
473 #ifndef elf_backend_relocate_section
474 #define elf_backend_relocate_section 0
475 #endif
476 #ifndef elf_backend_finish_dynamic_symbol
477 #define elf_backend_finish_dynamic_symbol 0
478 #endif
479 #ifndef elf_backend_finish_dynamic_sections
480 #define elf_backend_finish_dynamic_sections 0
481 #endif
482 #ifndef elf_backend_begin_write_processing
483 #define elf_backend_begin_write_processing 0
484 #endif
485 #ifndef elf_backend_final_write_processing
486 #define elf_backend_final_write_processing 0
487 #endif
488 #ifndef elf_backend_additional_program_headers
489 #define elf_backend_additional_program_headers 0
490 #endif
491 #ifndef elf_backend_modify_segment_map
492 #define elf_backend_modify_segment_map 0
493 #endif
494 #ifndef elf_backend_modify_program_headers
495 #define elf_backend_modify_program_headers 0
496 #endif
497 #ifndef elf_backend_allow_non_load_phdr
498 #define elf_backend_allow_non_load_phdr 0
499 #endif
500 #ifndef elf_backend_ecoff_debug_swap
501 #define elf_backend_ecoff_debug_swap 0
502 #endif
503 #ifndef elf_backend_bfd_from_remote_memory
504 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
505 #endif
506 #ifndef elf_backend_got_header_size
507 #define elf_backend_got_header_size 0
508 #endif
509 #ifndef elf_backend_got_elt_size
510 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
511 #endif
512 #ifndef elf_backend_obj_attrs_vendor
513 #define elf_backend_obj_attrs_vendor NULL
514 #endif
515 #ifndef elf_backend_obj_attrs_section
516 #define elf_backend_obj_attrs_section NULL
517 #endif
518 #ifndef elf_backend_obj_attrs_arg_type
519 #define elf_backend_obj_attrs_arg_type NULL
520 #endif
521 #ifndef elf_backend_obj_attrs_section_type
522 #define elf_backend_obj_attrs_section_type SHT_GNU_ATTRIBUTES
523 #endif
524 #ifndef elf_backend_obj_attrs_order
525 #define elf_backend_obj_attrs_order NULL
526 #endif
527 #ifndef elf_backend_obj_attrs_handle_unknown
528 #define elf_backend_obj_attrs_handle_unknown NULL
529 #endif
530 #ifndef elf_backend_parse_gnu_properties
531 #define elf_backend_parse_gnu_properties NULL
532 #endif
533 #ifndef elf_backend_merge_gnu_properties
534 #define elf_backend_merge_gnu_properties NULL
535 #endif
536 #ifndef elf_backend_setup_gnu_properties
537 #define elf_backend_setup_gnu_properties _bfd_elf_link_setup_gnu_properties
538 #endif
539 #ifndef elf_backend_static_tls_alignment
540 #define elf_backend_static_tls_alignment 1
541 #endif
542 #ifndef elf_backend_post_process_headers
543 #define elf_backend_post_process_headers _bfd_elf_post_process_headers
544 #endif
545 #ifndef elf_backend_print_symbol_all
546 #define elf_backend_print_symbol_all NULL
547 #endif
548 #ifndef elf_backend_output_arch_local_syms
549 #define elf_backend_output_arch_local_syms NULL
550 #endif
551 #ifndef elf_backend_output_arch_syms
552 #define elf_backend_output_arch_syms NULL
553 #endif
554 #ifndef elf_backend_filter_implib_symbols
555 #define elf_backend_filter_implib_symbols NULL
556 #endif
557 #ifndef elf_backend_copy_indirect_symbol
558 #define elf_backend_copy_indirect_symbol _bfd_elf_link_hash_copy_indirect
559 #endif
560 #ifndef elf_backend_hide_symbol
561 #define elf_backend_hide_symbol _bfd_elf_link_hash_hide_symbol
562 #endif
563 #ifndef elf_backend_fixup_symbol
564 #define elf_backend_fixup_symbol NULL
565 #endif
566 #ifndef elf_backend_merge_symbol_attribute
567 #define elf_backend_merge_symbol_attribute NULL
568 #endif
569 #ifndef elf_backend_get_target_dtag
570 #define elf_backend_get_target_dtag NULL
571 #endif
572 #ifndef elf_backend_ignore_undef_symbol
573 #define elf_backend_ignore_undef_symbol NULL
574 #endif
575 #ifndef elf_backend_emit_relocs
576 #define elf_backend_emit_relocs _bfd_elf_link_output_relocs
577 #endif
578 #ifndef elf_backend_update_relocs
579 #define elf_backend_update_relocs NULL
580 #endif
581 #ifndef elf_backend_count_relocs
582 #define elf_backend_count_relocs NULL
583 #endif
584 #ifndef elf_backend_count_additional_relocs
585 #define elf_backend_count_additional_relocs NULL
586 #endif
587 #ifndef elf_backend_sort_relocs_p
588 #define elf_backend_sort_relocs_p NULL
589 #endif
590 #ifndef elf_backend_grok_prstatus
591 #define elf_backend_grok_prstatus NULL
592 #endif
593 #ifndef elf_backend_grok_psinfo
594 #define elf_backend_grok_psinfo NULL
595 #endif
596 #ifndef elf_backend_grok_freebsd_prstatus
597 #define elf_backend_grok_freebsd_prstatus NULL
598 #endif
599 #ifndef elf_backend_write_core_note
600 #define elf_backend_write_core_note NULL
601 #endif
602 #ifndef elf_backend_lookup_section_flags_hook
603 #define elf_backend_lookup_section_flags_hook NULL
604 #endif
605 #ifndef elf_backend_reloc_type_class
606 #define elf_backend_reloc_type_class _bfd_elf_reloc_type_class
607 #endif
608 #ifndef elf_backend_discard_info
609 #define elf_backend_discard_info NULL
610 #endif
611 #ifndef elf_backend_ignore_discarded_relocs
612 #define elf_backend_ignore_discarded_relocs NULL
613 #endif
614 #ifndef elf_backend_action_discarded
615 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
616 #endif
617 #ifndef elf_backend_eh_frame_address_size
618 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
619 #endif
620 #ifndef elf_backend_can_make_relative_eh_frame
621 #define elf_backend_can_make_relative_eh_frame _bfd_elf_can_make_relative
622 #endif
623 #ifndef elf_backend_can_make_lsda_relative_eh_frame
624 #define elf_backend_can_make_lsda_relative_eh_frame _bfd_elf_can_make_relative
625 #endif
626 #ifndef elf_backend_encode_eh_address
627 #define elf_backend_encode_eh_address _bfd_elf_encode_eh_address
628 #endif
629 #ifndef elf_backend_write_section
630 #define elf_backend_write_section NULL
631 #endif
632 #ifndef elf_backend_mips_irix_compat
633 #define elf_backend_mips_irix_compat NULL
634 #endif
635 #ifndef elf_backend_mips_rtype_to_howto
636 #define elf_backend_mips_rtype_to_howto NULL
637 #endif
638
639 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
640 sections, but not both. They defined USE_REL to indicate SHT_REL
641 sections, and left it undefined to indicated SHT_RELA sections.
642 For backwards compatibility, we still support this usage. */
643 #ifndef USE_REL
644 #define USE_REL 0
645 #endif
646
647 /* Use these in new code. */
648 #ifndef elf_backend_may_use_rel_p
649 #define elf_backend_may_use_rel_p USE_REL
650 #endif
651 #ifndef elf_backend_may_use_rela_p
652 #define elf_backend_may_use_rela_p !USE_REL
653 #endif
654 #ifndef elf_backend_default_use_rela_p
655 #define elf_backend_default_use_rela_p !USE_REL
656 #endif
657 #ifndef elf_backend_rela_plts_and_copies_p
658 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
659 #endif
660
661 #ifndef elf_backend_rela_normal
662 #define elf_backend_rela_normal 0
663 #endif
664
665 #ifndef elf_backend_dtrel_excludes_plt
666 #define elf_backend_dtrel_excludes_plt 0
667 #endif
668
669 #ifndef elf_backend_plt_sym_val
670 #define elf_backend_plt_sym_val NULL
671 #endif
672 #ifndef elf_backend_relplt_name
673 #define elf_backend_relplt_name NULL
674 #endif
675
676 #ifndef ELF_MACHINE_ALT1
677 #define ELF_MACHINE_ALT1 0
678 #endif
679
680 #ifndef ELF_MACHINE_ALT2
681 #define ELF_MACHINE_ALT2 0
682 #endif
683
684 #ifndef elf_backend_size_info
685 #define elf_backend_size_info _bfd_elfNN_size_info
686 #endif
687
688 #ifndef elf_backend_special_sections
689 #define elf_backend_special_sections NULL
690 #endif
691
692 #ifndef elf_backend_sign_extend_vma
693 #define elf_backend_sign_extend_vma 0
694 #endif
695
696 #ifndef elf_backend_link_order_error_handler
697 #define elf_backend_link_order_error_handler _bfd_error_handler
698 #endif
699
700 #ifndef elf_backend_common_definition
701 #define elf_backend_common_definition _bfd_elf_common_definition
702 #endif
703
704 #ifndef elf_backend_common_section_index
705 #define elf_backend_common_section_index _bfd_elf_common_section_index
706 #endif
707
708 #ifndef elf_backend_common_section
709 #define elf_backend_common_section _bfd_elf_common_section
710 #endif
711
712 #ifndef elf_backend_merge_symbol
713 #define elf_backend_merge_symbol NULL
714 #endif
715
716 #ifndef elf_backend_hash_symbol
717 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
718 #endif
719
720 #ifndef elf_backend_is_function_type
721 #define elf_backend_is_function_type _bfd_elf_is_function_type
722 #endif
723
724 #ifndef elf_backend_maybe_function_sym
725 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
726 #endif
727
728 #ifndef elf_backend_get_reloc_section
729 #define elf_backend_get_reloc_section _bfd_elf_plt_get_reloc_section
730 #endif
731
732 #ifndef elf_backend_copy_special_section_fields
733 #define elf_backend_copy_special_section_fields NULL
734 #endif
735
736 #ifndef elf_backend_compact_eh_encoding
737 #define elf_backend_compact_eh_encoding NULL
738 #endif
739
740 #ifndef elf_backend_cant_unwind_opcode
741 #define elf_backend_cant_unwind_opcode 0
742 #endif
743
744 #ifndef elf_match_priority
745 #define elf_match_priority \
746 (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
747 #endif
748
749 extern const struct elf_size_info _bfd_elfNN_size_info;
750
751 static struct elf_backend_data elfNN_bed =
752 {
753 ELF_ARCH, /* arch */
754 ELF_TARGET_ID, /* target_id */
755 ELF_MACHINE_CODE, /* elf_machine_code */
756 ELF_OSABI, /* elf_osabi */
757 ELF_MAXPAGESIZE, /* maxpagesize */
758 ELF_MINPAGESIZE, /* minpagesize */
759 ELF_COMMONPAGESIZE, /* commonpagesize */
760 ELF_DYNAMIC_SEC_FLAGS, /* dynamic_sec_flags */
761 elf_backend_arch_data,
762 elf_info_to_howto,
763 elf_info_to_howto_rel,
764 elf_backend_sym_is_global,
765 elf_backend_object_p,
766 elf_backend_symbol_processing,
767 elf_backend_symbol_table_processing,
768 elf_backend_get_symbol_type,
769 elf_backend_archive_symbol_lookup,
770 elf_backend_name_local_section_symbols,
771 elf_backend_section_processing,
772 elf_backend_section_from_shdr,
773 elf_backend_section_flags,
774 elf_backend_get_sec_type_attr,
775 elf_backend_section_from_phdr,
776 elf_backend_fake_sections,
777 elf_backend_section_from_bfd_section,
778 elf_backend_add_symbol_hook,
779 elf_backend_link_output_symbol_hook,
780 elf_backend_create_dynamic_sections,
781 elf_backend_omit_section_dynsym,
782 elf_backend_relocs_compatible,
783 elf_backend_check_relocs,
784 elf_backend_check_directives,
785 elf_backend_notice_as_needed,
786 elf_backend_adjust_dynamic_symbol,
787 elf_backend_always_size_sections,
788 elf_backend_size_dynamic_sections,
789 elf_backend_init_index_section,
790 elf_backend_relocate_section,
791 elf_backend_finish_dynamic_symbol,
792 elf_backend_finish_dynamic_sections,
793 elf_backend_begin_write_processing,
794 elf_backend_final_write_processing,
795 elf_backend_additional_program_headers,
796 elf_backend_modify_segment_map,
797 elf_backend_modify_program_headers,
798 elf_backend_allow_non_load_phdr,
799 elf_backend_gc_keep,
800 elf_backend_gc_mark_dynamic_ref,
801 elf_backend_gc_mark_hook,
802 elf_backend_gc_mark_extra_sections,
803 elf_backend_post_process_headers,
804 elf_backend_print_symbol_all,
805 elf_backend_output_arch_local_syms,
806 elf_backend_output_arch_syms,
807 elf_backend_filter_implib_symbols,
808 elf_backend_copy_indirect_symbol,
809 elf_backend_hide_symbol,
810 elf_backend_fixup_symbol,
811 elf_backend_merge_symbol_attribute,
812 elf_backend_get_target_dtag,
813 elf_backend_ignore_undef_symbol,
814 elf_backend_emit_relocs,
815 elf_backend_update_relocs,
816 elf_backend_count_relocs,
817 elf_backend_count_additional_relocs,
818 elf_backend_sort_relocs_p,
819 elf_backend_grok_prstatus,
820 elf_backend_grok_psinfo,
821 elf_backend_grok_freebsd_prstatus,
822 elf_backend_write_core_note,
823 elf_backend_lookup_section_flags_hook,
824 elf_backend_reloc_type_class,
825 elf_backend_discard_info,
826 elf_backend_ignore_discarded_relocs,
827 elf_backend_action_discarded,
828 elf_backend_eh_frame_address_size,
829 elf_backend_can_make_relative_eh_frame,
830 elf_backend_can_make_lsda_relative_eh_frame,
831 elf_backend_encode_eh_address,
832 elf_backend_write_section,
833 elf_backend_mips_irix_compat,
834 elf_backend_mips_rtype_to_howto,
835 elf_backend_ecoff_debug_swap,
836 elf_backend_bfd_from_remote_memory,
837 elf_backend_plt_sym_val,
838 elf_backend_common_definition,
839 elf_backend_common_section_index,
840 elf_backend_common_section,
841 elf_backend_merge_symbol,
842 elf_backend_hash_symbol,
843 elf_backend_is_function_type,
844 elf_backend_maybe_function_sym,
845 elf_backend_get_reloc_section,
846 elf_backend_copy_special_section_fields,
847 elf_backend_link_order_error_handler,
848 elf_backend_relplt_name,
849 ELF_MACHINE_ALT1,
850 ELF_MACHINE_ALT2,
851 &elf_backend_size_info,
852 elf_backend_special_sections,
853 elf_backend_got_header_size,
854 elf_backend_got_elt_size,
855 elf_backend_obj_attrs_vendor,
856 elf_backend_obj_attrs_section,
857 elf_backend_obj_attrs_arg_type,
858 elf_backend_obj_attrs_section_type,
859 elf_backend_obj_attrs_order,
860 elf_backend_obj_attrs_handle_unknown,
861 elf_backend_parse_gnu_properties,
862 elf_backend_merge_gnu_properties,
863 elf_backend_setup_gnu_properties,
864 elf_backend_compact_eh_encoding,
865 elf_backend_cant_unwind_opcode,
866 elf_backend_static_tls_alignment,
867 elf_backend_stack_align,
868 elf_backend_strtab_flags,
869 elf_backend_collect,
870 elf_backend_type_change_ok,
871 elf_backend_may_use_rel_p,
872 elf_backend_may_use_rela_p,
873 elf_backend_default_use_rela_p,
874 elf_backend_rela_plts_and_copies_p,
875 elf_backend_rela_normal,
876 elf_backend_dtrel_excludes_plt,
877 elf_backend_sign_extend_vma,
878 elf_backend_want_got_plt,
879 elf_backend_plt_readonly,
880 elf_backend_want_plt_sym,
881 elf_backend_plt_not_loaded,
882 elf_backend_plt_alignment,
883 elf_backend_can_gc_sections,
884 elf_backend_can_refcount,
885 elf_backend_want_got_sym,
886 elf_backend_want_dynbss,
887 elf_backend_want_dynrelro,
888 elf_backend_want_p_paddr_set_to_zero,
889 elf_backend_no_page_alias,
890 elf_backend_default_execstack,
891 elf_backend_caches_rawsize,
892 elf_backend_extern_protected_data,
893 elf_backend_always_renumber_dynsyms,
894 elf_backend_linux_prpsinfo32_ugid16,
895 elf_backend_linux_prpsinfo64_ugid16
896 };
897
898 /* Forward declaration for use when initialising alternative_target field. */
899 #ifdef TARGET_LITTLE_SYM
900 extern const bfd_target TARGET_LITTLE_SYM;
901 #endif
902
903 #ifdef TARGET_BIG_SYM
904 const bfd_target TARGET_BIG_SYM =
905 {
906 /* name: identify kind of target */
907 TARGET_BIG_NAME,
908
909 /* flavour: general indication about file */
910 bfd_target_elf_flavour,
911
912 /* byteorder: data is big endian */
913 BFD_ENDIAN_BIG,
914
915 /* header_byteorder: header is also big endian */
916 BFD_ENDIAN_BIG,
917
918 /* object_flags: mask of all file flags */
919 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
920 | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
921 | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
922
923 /* section_flags: mask of all section flags */
924 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
925 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
926 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
927
928 /* leading_symbol_char: is the first char of a user symbol
929 predictable, and if so what is it */
930 elf_symbol_leading_char,
931
932 /* ar_pad_char: pad character for filenames within an archive header
933 FIXME: this really has nothing to do with ELF, this is a characteristic
934 of the archiver and/or os and should be independently tunable */
935 '/',
936
937 /* ar_max_namelen: maximum number of characters in an archive header
938 FIXME: this really has nothing to do with ELF, this is a characteristic
939 of the archiver and should be independently tunable. The System V ABI,
940 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */
941 15,
942
943 elf_match_priority,
944
945 /* Routines to byte-swap various sized integers from the data sections */
946 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
947 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
948 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
949
950 /* Routines to byte-swap various sized integers from the file headers */
951 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
952 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
953 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
954
955 /* bfd_check_format: check the format of a file being read */
956 { _bfd_dummy_target, /* unknown format */
957 bfd_elfNN_object_p, /* assembler/linker output (object file) */
958 bfd_elfNN_archive_p, /* an archive */
959 bfd_elfNN_core_file_p /* a core file */
960 },
961
962 /* bfd_set_format: set the format of a file being written */
963 { _bfd_bool_bfd_false_error,
964 bfd_elfNN_mkobject,
965 bfd_elfNN_mkarchive,
966 bfd_elfNN_mkcorefile
967 },
968
969 /* bfd_write_contents: write cached information into a file being written */
970 { _bfd_bool_bfd_false_error,
971 bfd_elfNN_write_object_contents,
972 bfd_elfNN_write_archive_contents,
973 bfd_elfNN_write_corefile_contents,
974 },
975
976 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
977 BFD_JUMP_TABLE_COPY (bfd_elfNN),
978 BFD_JUMP_TABLE_CORE (bfd_elfNN),
979 #ifdef bfd_elfNN_archive_functions
980 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
981 #elif defined USE_64_BIT_ARCHIVE
982 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
983 #else
984 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
985 #endif
986 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
987 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
988 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
989 BFD_JUMP_TABLE_LINK (bfd_elfNN),
990 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
991
992 /* Alternative endian target. */
993 #ifdef TARGET_LITTLE_SYM
994 & TARGET_LITTLE_SYM,
995 #else
996 NULL,
997 #endif
998
999 /* backend_data: */
1000 &elfNN_bed
1001 };
1002 #endif
1003
1004 #ifdef TARGET_LITTLE_SYM
1005 const bfd_target TARGET_LITTLE_SYM =
1006 {
1007 /* name: identify kind of target */
1008 TARGET_LITTLE_NAME,
1009
1010 /* flavour: general indication about file */
1011 bfd_target_elf_flavour,
1012
1013 /* byteorder: data is little endian */
1014 BFD_ENDIAN_LITTLE,
1015
1016 /* header_byteorder: header is also little endian */
1017 BFD_ENDIAN_LITTLE,
1018
1019 /* object_flags: mask of all file flags */
1020 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
1021 | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
1022 | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
1023
1024 /* section_flags: mask of all section flags */
1025 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
1026 | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
1027 | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
1028
1029 /* leading_symbol_char: is the first char of a user symbol
1030 predictable, and if so what is it */
1031 elf_symbol_leading_char,
1032
1033 /* ar_pad_char: pad character for filenames within an archive header
1034 FIXME: this really has nothing to do with ELF, this is a characteristic
1035 of the archiver and/or os and should be independently tunable */
1036 '/',
1037
1038 /* ar_max_namelen: maximum number of characters in an archive header
1039 FIXME: this really has nothing to do with ELF, this is a characteristic
1040 of the archiver and should be independently tunable. The System V ABI,
1041 Chapter 7 (Formats & Protocols), Archive section sets this as 15. */
1042 15,
1043
1044 elf_match_priority,
1045
1046 /* Routines to byte-swap various sized integers from the data sections */
1047 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1048 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1049 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1050
1051 /* Routines to byte-swap various sized integers from the file headers */
1052 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1053 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1054 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1055
1056 /* bfd_check_format: check the format of a file being read */
1057 { _bfd_dummy_target, /* unknown format */
1058 bfd_elfNN_object_p, /* assembler/linker output (object file) */
1059 bfd_elfNN_archive_p, /* an archive */
1060 bfd_elfNN_core_file_p /* a core file */
1061 },
1062
1063 /* bfd_set_format: set the format of a file being written */
1064 { _bfd_bool_bfd_false_error,
1065 bfd_elfNN_mkobject,
1066 bfd_elfNN_mkarchive,
1067 bfd_elfNN_mkcorefile
1068 },
1069
1070 /* bfd_write_contents: write cached information into a file being written */
1071 { _bfd_bool_bfd_false_error,
1072 bfd_elfNN_write_object_contents,
1073 bfd_elfNN_write_archive_contents,
1074 bfd_elfNN_write_corefile_contents,
1075 },
1076
1077 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
1078 BFD_JUMP_TABLE_COPY (bfd_elfNN),
1079 BFD_JUMP_TABLE_CORE (bfd_elfNN),
1080 #ifdef bfd_elfNN_archive_functions
1081 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
1082 #elif defined USE_64_BIT_ARCHIVE
1083 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
1084 #else
1085 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
1086 #endif
1087 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
1088 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
1089 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
1090 BFD_JUMP_TABLE_LINK (bfd_elfNN),
1091 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
1092
1093 /* Alternative endian target. */
1094 #ifdef TARGET_BIG_SYM
1095 & TARGET_BIG_SYM,
1096 #else
1097 NULL,
1098 #endif
1099
1100 /* backend_data: */
1101 &elfNN_bed
1102 };
1103 #endif
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