1 /* Target definitions for NN-bit ELF
2    Copyright (C) 1993-2016 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_p_paddr_set_to_zero
112 #define elf_backend_want_p_paddr_set_to_zero 0
113 #endif
114 #ifndef elf_backend_default_execstack
115 #define elf_backend_default_execstack 1
116 #endif
117 #ifndef elf_backend_caches_rawsize
118 #define elf_backend_caches_rawsize 0
119 #endif
120 #ifndef elf_backend_extern_protected_data
121 #define elf_backend_extern_protected_data 0
122 #endif
123 #ifndef elf_backend_stack_align
124 #define elf_backend_stack_align 16
125 #endif
126 #ifndef elf_backend_strtab_flags
127 #define elf_backend_strtab_flags 0
128 #endif
129 
130 #define bfd_elfNN_bfd_debug_info_start	bfd_void
131 #define bfd_elfNN_bfd_debug_info_end	bfd_void
132 #define bfd_elfNN_bfd_debug_info_accumulate \
133   ((void (*) (bfd*, struct bfd_section *)) bfd_void)
134 
135 #ifndef bfd_elfNN_bfd_get_relocated_section_contents
136 #define bfd_elfNN_bfd_get_relocated_section_contents \
137   bfd_generic_get_relocated_section_contents
138 #endif
139 
140 #ifndef bfd_elfNN_bfd_relax_section
141 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
142 #endif
143 
144 #ifndef elf_backend_can_gc_sections
145 #define elf_backend_can_gc_sections 0
146 #endif
147 #ifndef elf_backend_can_refcount
148 #define elf_backend_can_refcount 0
149 #endif
150 #ifndef elf_backend_want_got_sym
151 #define elf_backend_want_got_sym 1
152 #endif
153 #ifndef elf_backend_gc_keep
154 #define elf_backend_gc_keep		_bfd_elf_gc_keep
155 #endif
156 #ifndef elf_backend_gc_mark_dynamic_ref
157 #define elf_backend_gc_mark_dynamic_ref	bfd_elf_gc_mark_dynamic_ref_symbol
158 #endif
159 #ifndef elf_backend_gc_mark_hook
160 #define elf_backend_gc_mark_hook	_bfd_elf_gc_mark_hook
161 #endif
162 #ifndef elf_backend_gc_mark_extra_sections
163 #define elf_backend_gc_mark_extra_sections _bfd_elf_gc_mark_extra_sections
164 #endif
165 #ifndef elf_backend_gc_sweep_hook
166 #define elf_backend_gc_sweep_hook	NULL
167 #endif
168 #ifndef bfd_elfNN_bfd_gc_sections
169 #define bfd_elfNN_bfd_gc_sections bfd_elf_gc_sections
170 #endif
171 
172 #ifndef bfd_elfNN_bfd_merge_sections
173 #define bfd_elfNN_bfd_merge_sections \
174   _bfd_elf_merge_sections
175 #endif
176 
177 #ifndef bfd_elfNN_bfd_is_group_section
178 #define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section
179 #endif
180 
181 #ifndef bfd_elfNN_bfd_discard_group
182 #define bfd_elfNN_bfd_discard_group bfd_generic_discard_group
183 #endif
184 
185 #ifndef bfd_elfNN_section_already_linked
186 #define bfd_elfNN_section_already_linked \
187   _bfd_elf_section_already_linked
188 #endif
189 
190 #ifndef bfd_elfNN_bfd_define_common_symbol
191 #define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol
192 #endif
193 
194 #ifndef bfd_elfNN_bfd_lookup_section_flags
195 #define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags
196 #endif
197 
198 #ifndef bfd_elfNN_bfd_make_debug_symbol
199 #define bfd_elfNN_bfd_make_debug_symbol \
200   ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
201 #endif
202 
203 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
204 #define bfd_elfNN_bfd_copy_private_symbol_data \
205   _bfd_elf_copy_private_symbol_data
206 #endif
207 
208 #ifndef bfd_elfNN_bfd_copy_private_section_data
209 #define bfd_elfNN_bfd_copy_private_section_data \
210   _bfd_elf_copy_private_section_data
211 #endif
212 #ifndef bfd_elfNN_bfd_copy_private_header_data
213 #define bfd_elfNN_bfd_copy_private_header_data \
214   _bfd_elf_copy_private_header_data
215 #endif
216 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
217 #define bfd_elfNN_bfd_copy_private_bfd_data \
218   _bfd_elf_copy_private_bfd_data
219 #endif
220 #ifndef bfd_elfNN_bfd_print_private_bfd_data
221 #define bfd_elfNN_bfd_print_private_bfd_data \
222   _bfd_elf_print_private_bfd_data
223 #endif
224 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
225 #define bfd_elfNN_bfd_merge_private_bfd_data \
226   ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
227 #endif
228 #ifndef bfd_elfNN_bfd_set_private_flags
229 #define bfd_elfNN_bfd_set_private_flags \
230   ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
231 #endif
232 #ifndef bfd_elfNN_bfd_is_local_label_name
233 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
234 #endif
235 #ifndef bfd_elfNN_bfd_is_target_special_symbol
236 #define bfd_elfNN_bfd_is_target_special_symbol \
237   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
238 #endif
239 
240 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
241 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
242   _bfd_elf_get_dynamic_reloc_upper_bound
243 #endif
244 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
245 #define bfd_elfNN_canonicalize_dynamic_reloc \
246   _bfd_elf_canonicalize_dynamic_reloc
247 #endif
248 
249 #ifdef elf_backend_relocate_section
250 #ifndef bfd_elfNN_bfd_link_hash_table_create
251 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
252 #endif
253 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
254 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
255   _bfd_elf_copy_link_hash_symbol_type
256 #endif
257 #ifndef bfd_elfNN_bfd_link_add_symbols
258 #define bfd_elfNN_bfd_link_add_symbols	bfd_elf_link_add_symbols
259 #endif
260 #ifndef bfd_elfNN_bfd_final_link
261 #define bfd_elfNN_bfd_final_link	bfd_elf_final_link
262 #endif
263 #else /* ! defined (elf_backend_relocate_section) */
264 /* If no backend relocate_section routine, use the generic linker.
265    Note - this will prevent the port from being able to use some of
266    the other features of the ELF linker, because the generic hash structure
267    does not have the fields needed by the ELF linker.  In particular it
268    means that linking directly to S-records will not work.  */
269 #ifndef bfd_elfNN_bfd_link_hash_table_create
270 #define bfd_elfNN_bfd_link_hash_table_create \
271   _bfd_generic_link_hash_table_create
272 #endif
273 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
274 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
275   _bfd_generic_copy_link_hash_symbol_type
276 #endif
277 #ifndef bfd_elfNN_bfd_link_add_symbols
278 #define bfd_elfNN_bfd_link_add_symbols	_bfd_generic_link_add_symbols
279 #endif
280 #ifndef bfd_elfNN_bfd_final_link
281 #define bfd_elfNN_bfd_final_link	_bfd_generic_final_link
282 #endif
283 #endif /* ! defined (elf_backend_relocate_section) */
284 
285 #ifndef bfd_elfNN_bfd_link_just_syms
286 #define bfd_elfNN_bfd_link_just_syms	_bfd_elf_link_just_syms
287 #endif
288 
289 #ifndef bfd_elfNN_bfd_link_split_section
290 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
291 #endif
292 
293 #ifndef bfd_elfNN_bfd_link_check_relocs
294 #define bfd_elfNN_bfd_link_check_relocs  _bfd_elf_link_check_relocs
295 #endif
296 
297 #ifndef bfd_elfNN_archive_p
298 #define bfd_elfNN_archive_p bfd_generic_archive_p
299 #endif
300 
301 #ifndef bfd_elfNN_write_archive_contents
302 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
303 #endif
304 
305 #ifndef bfd_elfNN_mkobject
306 #define bfd_elfNN_mkobject bfd_elf_make_object
307 #endif
308 
309 #ifndef bfd_elfNN_mkcorefile
310 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
311 #endif
312 
313 #ifndef bfd_elfNN_mkarchive
314 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
315 #endif
316 
317 #ifndef bfd_elfNN_print_symbol
318 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
319 #endif
320 
321 #ifndef elf_symbol_leading_char
322 #define elf_symbol_leading_char 0
323 #endif
324 
325 #ifndef elf_info_to_howto
326 #define elf_info_to_howto 0
327 #endif
328 
329 #ifndef elf_info_to_howto_rel
330 #define elf_info_to_howto_rel 0
331 #endif
332 
333 #ifndef elf_backend_arch_data
334 #define elf_backend_arch_data NULL
335 #endif
336 
337 #ifndef ELF_TARGET_ID
338 #define ELF_TARGET_ID	GENERIC_ELF_DATA
339 #endif
340 
341 #ifndef ELF_OSABI
342 #define ELF_OSABI ELFOSABI_NONE
343 #endif
344 
345 #ifndef ELF_MAXPAGESIZE
346 # error ELF_MAXPAGESIZE is not defined
347 #define ELF_MAXPAGESIZE 1
348 #endif
349 
350 #ifndef ELF_COMMONPAGESIZE
351 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
352 #endif
353 
354 #ifndef ELF_MINPAGESIZE
355 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
356 #endif
357 
358 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
359 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
360 #endif
361 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
362 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
363 #endif
364 
365 #ifndef ELF_DYNAMIC_SEC_FLAGS
366 /* Note that we set the SEC_IN_MEMORY flag for these sections.  */
367 #define ELF_DYNAMIC_SEC_FLAGS			\
368   (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS	\
369    | SEC_IN_MEMORY | SEC_LINKER_CREATED)
370 #endif
371 
372 #ifndef elf_backend_collect
373 #define elf_backend_collect FALSE
374 #endif
375 #ifndef elf_backend_type_change_ok
376 #define elf_backend_type_change_ok FALSE
377 #endif
378 
379 #ifndef elf_backend_sym_is_global
380 #define elf_backend_sym_is_global	0
381 #endif
382 #ifndef elf_backend_object_p
383 #define elf_backend_object_p		0
384 #endif
385 #ifndef elf_backend_symbol_processing
386 #define elf_backend_symbol_processing	0
387 #endif
388 #ifndef elf_backend_symbol_table_processing
389 #define elf_backend_symbol_table_processing	0
390 #endif
391 #ifndef elf_backend_get_symbol_type
392 #define elf_backend_get_symbol_type 0
393 #endif
394 #ifndef elf_backend_archive_symbol_lookup
395 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
396 #endif
397 #ifndef elf_backend_name_local_section_symbols
398 #define elf_backend_name_local_section_symbols	0
399 #endif
400 #ifndef elf_backend_section_processing
401 #define elf_backend_section_processing	0
402 #endif
403 #ifndef elf_backend_section_from_shdr
404 #define elf_backend_section_from_shdr	_bfd_elf_make_section_from_shdr
405 #endif
406 #ifndef elf_backend_section_flags
407 #define elf_backend_section_flags	0
408 #endif
409 #ifndef elf_backend_get_sec_type_attr
410 #define elf_backend_get_sec_type_attr	_bfd_elf_get_sec_type_attr
411 #endif
412 #ifndef elf_backend_section_from_phdr
413 #define elf_backend_section_from_phdr	_bfd_elf_make_section_from_phdr
414 #endif
415 #ifndef elf_backend_fake_sections
416 #define elf_backend_fake_sections	0
417 #endif
418 #ifndef elf_backend_section_from_bfd_section
419 #define elf_backend_section_from_bfd_section	0
420 #endif
421 #ifndef elf_backend_add_symbol_hook
422 #define elf_backend_add_symbol_hook	0
423 #endif
424 #ifndef elf_backend_link_output_symbol_hook
425 #define elf_backend_link_output_symbol_hook 0
426 #endif
427 #ifndef elf_backend_create_dynamic_sections
428 #define elf_backend_create_dynamic_sections 0
429 #endif
430 #ifndef elf_backend_omit_section_dynsym
431 #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym
432 #endif
433 #ifndef elf_backend_relocs_compatible
434 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
435 #endif
436 #ifndef elf_backend_check_relocs
437 #define elf_backend_check_relocs	0
438 #endif
439 #ifndef elf_backend_check_directives
440 #define elf_backend_check_directives	0
441 #endif
442 #ifndef elf_backend_notice_as_needed
443 #define elf_backend_notice_as_needed	_bfd_elf_notice_as_needed
444 #endif
445 #ifndef elf_backend_adjust_dynamic_symbol
446 #define elf_backend_adjust_dynamic_symbol 0
447 #endif
448 #ifndef elf_backend_always_size_sections
449 #define elf_backend_always_size_sections 0
450 #endif
451 #ifndef elf_backend_size_dynamic_sections
452 #define elf_backend_size_dynamic_sections 0
453 #endif
454 #ifndef elf_backend_init_index_section
455 #define elf_backend_init_index_section \
456  ((void (*) (bfd *, struct bfd_link_info *)) bfd_void)
457 #endif
458 #ifndef elf_backend_relocate_section
459 #define elf_backend_relocate_section	0
460 #endif
461 #ifndef elf_backend_finish_dynamic_symbol
462 #define elf_backend_finish_dynamic_symbol	0
463 #endif
464 #ifndef elf_backend_finish_dynamic_sections
465 #define elf_backend_finish_dynamic_sections	0
466 #endif
467 #ifndef elf_backend_begin_write_processing
468 #define elf_backend_begin_write_processing	0
469 #endif
470 #ifndef elf_backend_final_write_processing
471 #define elf_backend_final_write_processing	0
472 #endif
473 #ifndef elf_backend_additional_program_headers
474 #define elf_backend_additional_program_headers	0
475 #endif
476 #ifndef elf_backend_modify_segment_map
477 #define elf_backend_modify_segment_map	0
478 #endif
479 #ifndef elf_backend_modify_program_headers
480 #define elf_backend_modify_program_headers	0
481 #endif
482 #ifndef elf_backend_ecoff_debug_swap
483 #define elf_backend_ecoff_debug_swap	0
484 #endif
485 #ifndef elf_backend_bfd_from_remote_memory
486 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
487 #endif
488 #ifndef elf_backend_got_header_size
489 #define elf_backend_got_header_size	0
490 #endif
491 #ifndef elf_backend_got_elt_size
492 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
493 #endif
494 #ifndef elf_backend_obj_attrs_vendor
495 #define elf_backend_obj_attrs_vendor		NULL
496 #endif
497 #ifndef elf_backend_obj_attrs_section
498 #define elf_backend_obj_attrs_section		NULL
499 #endif
500 #ifndef elf_backend_obj_attrs_arg_type
501 #define elf_backend_obj_attrs_arg_type		NULL
502 #endif
503 #ifndef elf_backend_obj_attrs_section_type
504 #define elf_backend_obj_attrs_section_type		SHT_GNU_ATTRIBUTES
505 #endif
506 #ifndef elf_backend_obj_attrs_order
507 #define elf_backend_obj_attrs_order		NULL
508 #endif
509 #ifndef elf_backend_obj_attrs_handle_unknown
510 #define elf_backend_obj_attrs_handle_unknown	NULL
511 #endif
512 #ifndef elf_backend_static_tls_alignment
513 #define elf_backend_static_tls_alignment	1
514 #endif
515 #ifndef elf_backend_post_process_headers
516 #define elf_backend_post_process_headers	_bfd_elf_post_process_headers
517 #endif
518 #ifndef elf_backend_print_symbol_all
519 #define elf_backend_print_symbol_all		NULL
520 #endif
521 #ifndef elf_backend_output_arch_local_syms
522 #define elf_backend_output_arch_local_syms	NULL
523 #endif
524 #ifndef elf_backend_output_arch_syms
525 #define elf_backend_output_arch_syms		NULL
526 #endif
527 #ifndef elf_backend_copy_indirect_symbol
528 #define elf_backend_copy_indirect_symbol  _bfd_elf_link_hash_copy_indirect
529 #endif
530 #ifndef elf_backend_hide_symbol
531 #define elf_backend_hide_symbol		_bfd_elf_link_hash_hide_symbol
532 #endif
533 #ifndef elf_backend_fixup_symbol
534 #define elf_backend_fixup_symbol		NULL
535 #endif
536 #ifndef elf_backend_merge_symbol_attribute
537 #define elf_backend_merge_symbol_attribute	NULL
538 #endif
539 #ifndef elf_backend_get_target_dtag
540 #define elf_backend_get_target_dtag		NULL
541 #endif
542 #ifndef elf_backend_ignore_undef_symbol
543 #define elf_backend_ignore_undef_symbol		NULL
544 #endif
545 #ifndef elf_backend_emit_relocs
546 #define elf_backend_emit_relocs			_bfd_elf_link_output_relocs
547 #endif
548 #ifndef elf_backend_count_relocs
549 #define elf_backend_count_relocs		NULL
550 #endif
551 #ifndef elf_backend_count_additional_relocs
552 #define elf_backend_count_additional_relocs	NULL
553 #endif
554 #ifndef elf_backend_sort_relocs_p
555 #define elf_backend_sort_relocs_p		NULL
556 #endif
557 #ifndef elf_backend_grok_prstatus
558 #define elf_backend_grok_prstatus		NULL
559 #endif
560 #ifndef elf_backend_grok_psinfo
561 #define elf_backend_grok_psinfo			NULL
562 #endif
563 #ifndef elf_backend_write_core_note
564 #define elf_backend_write_core_note		NULL
565 #endif
566 #ifndef elf_backend_lookup_section_flags_hook
567 #define elf_backend_lookup_section_flags_hook	NULL
568 #endif
569 #ifndef elf_backend_reloc_type_class
570 #define elf_backend_reloc_type_class		_bfd_elf_reloc_type_class
571 #endif
572 #ifndef elf_backend_discard_info
573 #define elf_backend_discard_info		NULL
574 #endif
575 #ifndef elf_backend_ignore_discarded_relocs
576 #define elf_backend_ignore_discarded_relocs	NULL
577 #endif
578 #ifndef elf_backend_action_discarded
579 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
580 #endif
581 #ifndef elf_backend_eh_frame_address_size
582 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
583 #endif
584 #ifndef elf_backend_can_make_relative_eh_frame
585 #define elf_backend_can_make_relative_eh_frame	_bfd_elf_can_make_relative
586 #endif
587 #ifndef elf_backend_can_make_lsda_relative_eh_frame
588 #define elf_backend_can_make_lsda_relative_eh_frame	_bfd_elf_can_make_relative
589 #endif
590 #ifndef elf_backend_encode_eh_address
591 #define elf_backend_encode_eh_address		_bfd_elf_encode_eh_address
592 #endif
593 #ifndef elf_backend_write_section
594 #define elf_backend_write_section		NULL
595 #endif
596 #ifndef elf_backend_mips_irix_compat
597 #define elf_backend_mips_irix_compat		NULL
598 #endif
599 #ifndef elf_backend_mips_rtype_to_howto
600 #define elf_backend_mips_rtype_to_howto		NULL
601 #endif
602 
603 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
604    sections, but not both.  They defined USE_REL to indicate SHT_REL
605    sections, and left it undefined to indicated SHT_RELA sections.
606    For backwards compatibility, we still support this usage.  */
607 #ifndef USE_REL
608 #define USE_REL 0
609 #endif
610 
611 /* Use these in new code.  */
612 #ifndef elf_backend_may_use_rel_p
613 #define elf_backend_may_use_rel_p USE_REL
614 #endif
615 #ifndef elf_backend_may_use_rela_p
616 #define elf_backend_may_use_rela_p !USE_REL
617 #endif
618 #ifndef elf_backend_default_use_rela_p
619 #define elf_backend_default_use_rela_p !USE_REL
620 #endif
621 #ifndef elf_backend_rela_plts_and_copies_p
622 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
623 #endif
624 
625 #ifndef elf_backend_rela_normal
626 #define elf_backend_rela_normal 0
627 #endif
628 
629 #ifndef elf_backend_plt_sym_val
630 #define elf_backend_plt_sym_val NULL
631 #endif
632 #ifndef elf_backend_relplt_name
633 #define elf_backend_relplt_name NULL
634 #endif
635 
636 #ifndef ELF_MACHINE_ALT1
637 #define ELF_MACHINE_ALT1 0
638 #endif
639 
640 #ifndef ELF_MACHINE_ALT2
641 #define ELF_MACHINE_ALT2 0
642 #endif
643 
644 #ifndef elf_backend_size_info
645 #define elf_backend_size_info _bfd_elfNN_size_info
646 #endif
647 
648 #ifndef elf_backend_special_sections
649 #define elf_backend_special_sections NULL
650 #endif
651 
652 #ifndef elf_backend_sign_extend_vma
653 #define elf_backend_sign_extend_vma 0
654 #endif
655 
656 #ifndef elf_backend_link_order_error_handler
657 #define elf_backend_link_order_error_handler _bfd_default_error_handler
658 #endif
659 
660 #ifndef elf_backend_common_definition
661 #define elf_backend_common_definition _bfd_elf_common_definition
662 #endif
663 
664 #ifndef elf_backend_common_section_index
665 #define elf_backend_common_section_index _bfd_elf_common_section_index
666 #endif
667 
668 #ifndef elf_backend_common_section
669 #define elf_backend_common_section _bfd_elf_common_section
670 #endif
671 
672 #ifndef elf_backend_merge_symbol
673 #define elf_backend_merge_symbol NULL
674 #endif
675 
676 #ifndef elf_backend_hash_symbol
677 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
678 #endif
679 
680 #ifndef elf_backend_is_function_type
681 #define elf_backend_is_function_type _bfd_elf_is_function_type
682 #endif
683 
684 #ifndef elf_backend_maybe_function_sym
685 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
686 #endif
687 
688 #ifndef elf_backend_get_reloc_section
689 #define elf_backend_get_reloc_section _bfd_elf_get_reloc_section
690 #endif
691 
692 #ifndef elf_backend_copy_special_section_fields
693 #define elf_backend_copy_special_section_fields NULL
694 #endif
695 
696 #ifndef elf_backend_compact_eh_encoding
697 #define elf_backend_compact_eh_encoding NULL
698 #endif
699 
700 #ifndef elf_backend_cant_unwind_opcode
701 #define elf_backend_cant_unwind_opcode 0
702 #endif
703 
704 #ifndef elf_match_priority
705 #define elf_match_priority \
706   (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
707 #endif
708 
709 extern const struct elf_size_info _bfd_elfNN_size_info;
710 
711 static struct elf_backend_data elfNN_bed =
712 {
713   ELF_ARCH,			/* arch */
714   ELF_TARGET_ID,		/* target_id */
715   ELF_MACHINE_CODE,		/* elf_machine_code */
716   ELF_OSABI,			/* elf_osabi  */
717   ELF_MAXPAGESIZE,		/* maxpagesize */
718   ELF_MINPAGESIZE,		/* minpagesize */
719   ELF_COMMONPAGESIZE,		/* commonpagesize */
720   ELF_DYNAMIC_SEC_FLAGS,	/* dynamic_sec_flags */
721   elf_backend_arch_data,
722   elf_info_to_howto,
723   elf_info_to_howto_rel,
724   elf_backend_sym_is_global,
725   elf_backend_object_p,
726   elf_backend_symbol_processing,
727   elf_backend_symbol_table_processing,
728   elf_backend_get_symbol_type,
729   elf_backend_archive_symbol_lookup,
730   elf_backend_name_local_section_symbols,
731   elf_backend_section_processing,
732   elf_backend_section_from_shdr,
733   elf_backend_section_flags,
734   elf_backend_get_sec_type_attr,
735   elf_backend_section_from_phdr,
736   elf_backend_fake_sections,
737   elf_backend_section_from_bfd_section,
738   elf_backend_add_symbol_hook,
739   elf_backend_link_output_symbol_hook,
740   elf_backend_create_dynamic_sections,
741   elf_backend_omit_section_dynsym,
742   elf_backend_relocs_compatible,
743   elf_backend_check_relocs,
744   elf_backend_check_directives,
745   elf_backend_notice_as_needed,
746   elf_backend_adjust_dynamic_symbol,
747   elf_backend_always_size_sections,
748   elf_backend_size_dynamic_sections,
749   elf_backend_init_index_section,
750   elf_backend_relocate_section,
751   elf_backend_finish_dynamic_symbol,
752   elf_backend_finish_dynamic_sections,
753   elf_backend_begin_write_processing,
754   elf_backend_final_write_processing,
755   elf_backend_additional_program_headers,
756   elf_backend_modify_segment_map,
757   elf_backend_modify_program_headers,
758   elf_backend_gc_keep,
759   elf_backend_gc_mark_dynamic_ref,
760   elf_backend_gc_mark_hook,
761   elf_backend_gc_mark_extra_sections,
762   elf_backend_gc_sweep_hook,
763   elf_backend_post_process_headers,
764   elf_backend_print_symbol_all,
765   elf_backend_output_arch_local_syms,
766   elf_backend_output_arch_syms,
767   elf_backend_copy_indirect_symbol,
768   elf_backend_hide_symbol,
769   elf_backend_fixup_symbol,
770   elf_backend_merge_symbol_attribute,
771   elf_backend_get_target_dtag,
772   elf_backend_ignore_undef_symbol,
773   elf_backend_emit_relocs,
774   elf_backend_count_relocs,
775   elf_backend_count_additional_relocs,
776   elf_backend_sort_relocs_p,
777   elf_backend_grok_prstatus,
778   elf_backend_grok_psinfo,
779   elf_backend_write_core_note,
780   elf_backend_lookup_section_flags_hook,
781   elf_backend_reloc_type_class,
782   elf_backend_discard_info,
783   elf_backend_ignore_discarded_relocs,
784   elf_backend_action_discarded,
785   elf_backend_eh_frame_address_size,
786   elf_backend_can_make_relative_eh_frame,
787   elf_backend_can_make_lsda_relative_eh_frame,
788   elf_backend_encode_eh_address,
789   elf_backend_write_section,
790   elf_backend_mips_irix_compat,
791   elf_backend_mips_rtype_to_howto,
792   elf_backend_ecoff_debug_swap,
793   elf_backend_bfd_from_remote_memory,
794   elf_backend_plt_sym_val,
795   elf_backend_common_definition,
796   elf_backend_common_section_index,
797   elf_backend_common_section,
798   elf_backend_merge_symbol,
799   elf_backend_hash_symbol,
800   elf_backend_is_function_type,
801   elf_backend_maybe_function_sym,
802   elf_backend_get_reloc_section,
803   elf_backend_copy_special_section_fields,
804   elf_backend_link_order_error_handler,
805   elf_backend_relplt_name,
806   ELF_MACHINE_ALT1,
807   ELF_MACHINE_ALT2,
808   &elf_backend_size_info,
809   elf_backend_special_sections,
810   elf_backend_got_header_size,
811   elf_backend_got_elt_size,
812   elf_backend_obj_attrs_vendor,
813   elf_backend_obj_attrs_section,
814   elf_backend_obj_attrs_arg_type,
815   elf_backend_obj_attrs_section_type,
816   elf_backend_obj_attrs_order,
817   elf_backend_obj_attrs_handle_unknown,
818   elf_backend_compact_eh_encoding,
819   elf_backend_cant_unwind_opcode,
820   elf_backend_static_tls_alignment,
821   elf_backend_stack_align,
822   elf_backend_strtab_flags,
823   elf_backend_collect,
824   elf_backend_type_change_ok,
825   elf_backend_may_use_rel_p,
826   elf_backend_may_use_rela_p,
827   elf_backend_default_use_rela_p,
828   elf_backend_rela_plts_and_copies_p,
829   elf_backend_rela_normal,
830   elf_backend_sign_extend_vma,
831   elf_backend_want_got_plt,
832   elf_backend_plt_readonly,
833   elf_backend_want_plt_sym,
834   elf_backend_plt_not_loaded,
835   elf_backend_plt_alignment,
836   elf_backend_can_gc_sections,
837   elf_backend_can_refcount,
838   elf_backend_want_got_sym,
839   elf_backend_want_dynbss,
840   elf_backend_want_p_paddr_set_to_zero,
841   elf_backend_default_execstack,
842   elf_backend_caches_rawsize,
843   elf_backend_extern_protected_data
844 };
845 
846 /* Forward declaration for use when initialising alternative_target field.  */
847 #ifdef TARGET_LITTLE_SYM
848 extern const bfd_target TARGET_LITTLE_SYM;
849 #endif
850 
851 #ifdef TARGET_BIG_SYM
852 const bfd_target TARGET_BIG_SYM =
853 {
854   /* name: identify kind of target */
855   TARGET_BIG_NAME,
856 
857   /* flavour: general indication about file */
858   bfd_target_elf_flavour,
859 
860   /* byteorder: data is big endian */
861   BFD_ENDIAN_BIG,
862 
863   /* header_byteorder: header is also big endian */
864   BFD_ENDIAN_BIG,
865 
866   /* object_flags: mask of all file flags */
867   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
868    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
869    | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
870 
871   /* section_flags: mask of all section flags */
872   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
873    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
874    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
875 
876    /* leading_symbol_char: is the first char of a user symbol
877       predictable, and if so what is it */
878   elf_symbol_leading_char,
879 
880   /* ar_pad_char: pad character for filenames within an archive header
881      FIXME:  this really has nothing to do with ELF, this is a characteristic
882      of the archiver and/or os and should be independently tunable */
883   '/',
884 
885   /* ar_max_namelen: maximum number of characters in an archive header
886      FIXME:  this really has nothing to do with ELF, this is a characteristic
887      of the archiver and should be independently tunable.  The System V ABI,
888      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
889   15,
890 
891   elf_match_priority,
892 
893   /* Routines to byte-swap various sized integers from the data sections */
894   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
895     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
896     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
897 
898   /* Routines to byte-swap various sized integers from the file headers */
899   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
900     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
901     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
902 
903   /* bfd_check_format: check the format of a file being read */
904   { _bfd_dummy_target,		/* unknown format */
905     bfd_elfNN_object_p,		/* assembler/linker output (object file) */
906     bfd_elfNN_archive_p,	/* an archive */
907     bfd_elfNN_core_file_p	/* a core file */
908   },
909 
910   /* bfd_set_format: set the format of a file being written */
911   { bfd_false,
912     bfd_elfNN_mkobject,
913     bfd_elfNN_mkarchive,
914     bfd_elfNN_mkcorefile
915   },
916 
917   /* bfd_write_contents: write cached information into a file being written */
918   { bfd_false,
919     bfd_elfNN_write_object_contents,
920     bfd_elfNN_write_archive_contents,
921     bfd_elfNN_write_corefile_contents,
922   },
923 
924   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
925   BFD_JUMP_TABLE_COPY (bfd_elfNN),
926   BFD_JUMP_TABLE_CORE (bfd_elfNN),
927 #ifdef bfd_elfNN_archive_functions
928   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
929 #elif defined USE_64_BIT_ARCHIVE
930   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
931 #else
932   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
933 #endif
934   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
935   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
936   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
937   BFD_JUMP_TABLE_LINK (bfd_elfNN),
938   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
939 
940   /* Alternative endian target.  */
941 #ifdef TARGET_LITTLE_SYM
942   & TARGET_LITTLE_SYM,
943 #else
944   NULL,
945 #endif
946 
947   /* backend_data: */
948   &elfNN_bed
949 };
950 #endif
951 
952 #ifdef TARGET_LITTLE_SYM
953 const bfd_target TARGET_LITTLE_SYM =
954 {
955   /* name: identify kind of target */
956   TARGET_LITTLE_NAME,
957 
958   /* flavour: general indication about file */
959   bfd_target_elf_flavour,
960 
961   /* byteorder: data is little endian */
962   BFD_ENDIAN_LITTLE,
963 
964   /* header_byteorder: header is also little endian */
965   BFD_ENDIAN_LITTLE,
966 
967   /* object_flags: mask of all file flags */
968   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
969    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
970    | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
971 
972   /* section_flags: mask of all section flags */
973   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
974    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
975    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
976 
977    /* leading_symbol_char: is the first char of a user symbol
978       predictable, and if so what is it */
979   elf_symbol_leading_char,
980 
981   /* ar_pad_char: pad character for filenames within an archive header
982      FIXME:  this really has nothing to do with ELF, this is a characteristic
983      of the archiver and/or os and should be independently tunable */
984   '/',
985 
986   /* ar_max_namelen: maximum number of characters in an archive header
987      FIXME:  this really has nothing to do with ELF, this is a characteristic
988      of the archiver and should be independently tunable.  The System V ABI,
989      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
990   15,
991 
992   elf_match_priority,
993 
994   /* Routines to byte-swap various sized integers from the data sections */
995   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
996     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
997     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
998 
999   /* Routines to byte-swap various sized integers from the file headers */
1000   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1001     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1002     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1003 
1004   /* bfd_check_format: check the format of a file being read */
1005   { _bfd_dummy_target,		/* unknown format */
1006     bfd_elfNN_object_p,		/* assembler/linker output (object file) */
1007     bfd_elfNN_archive_p,	/* an archive */
1008     bfd_elfNN_core_file_p	/* a core file */
1009   },
1010 
1011   /* bfd_set_format: set the format of a file being written */
1012   { bfd_false,
1013     bfd_elfNN_mkobject,
1014     bfd_elfNN_mkarchive,
1015     bfd_elfNN_mkcorefile
1016   },
1017 
1018   /* bfd_write_contents: write cached information into a file being written */
1019   { bfd_false,
1020     bfd_elfNN_write_object_contents,
1021     bfd_elfNN_write_archive_contents,
1022     bfd_elfNN_write_corefile_contents,
1023   },
1024 
1025   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
1026   BFD_JUMP_TABLE_COPY (bfd_elfNN),
1027   BFD_JUMP_TABLE_CORE (bfd_elfNN),
1028 #ifdef bfd_elfNN_archive_functions
1029   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
1030 #elif defined USE_64_BIT_ARCHIVE
1031   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
1032 #else
1033   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
1034 #endif
1035   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
1036   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
1037   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
1038   BFD_JUMP_TABLE_LINK (bfd_elfNN),
1039   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
1040 
1041   /* Alternative endian target.  */
1042 #ifdef TARGET_BIG_SYM
1043   & TARGET_BIG_SYM,
1044 #else
1045   NULL,
1046 #endif
1047 
1048   /* backend_data: */
1049   &elfNN_bed
1050 };
1051 #endif
1052