ELF/BFD,GDB: Handle both variants of the 32-bit Linux core PRPSINFO note
[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_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_stack_align
139 #define elf_backend_stack_align 16
140 #endif
141 #ifndef elf_backend_strtab_flags
142 #define elf_backend_strtab_flags 0
143 #endif
144
145 #define bfd_elfNN_bfd_debug_info_start  bfd_void
146 #define bfd_elfNN_bfd_debug_info_end    bfd_void
147 #define bfd_elfNN_bfd_debug_info_accumulate \
148   ((void (*) (bfd*, struct bfd_section *)) bfd_void)
149
150 #ifndef bfd_elfNN_bfd_get_relocated_section_contents
151 #define bfd_elfNN_bfd_get_relocated_section_contents \
152   bfd_generic_get_relocated_section_contents
153 #endif
154
155 #ifndef bfd_elfNN_bfd_relax_section
156 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
157 #endif
158
159 #ifndef elf_backend_can_gc_sections
160 #define elf_backend_can_gc_sections 0
161 #endif
162 #ifndef elf_backend_can_refcount
163 #define elf_backend_can_refcount 0
164 #endif
165 #ifndef elf_backend_want_got_sym
166 #define elf_backend_want_got_sym 1
167 #endif
168 #ifndef elf_backend_gc_keep
169 #define elf_backend_gc_keep             _bfd_elf_gc_keep
170 #endif
171 #ifndef elf_backend_gc_mark_dynamic_ref
172 #define elf_backend_gc_mark_dynamic_ref bfd_elf_gc_mark_dynamic_ref_symbol
173 #endif
174 #ifndef elf_backend_gc_mark_hook
175 #define elf_backend_gc_mark_hook        _bfd_elf_gc_mark_hook
176 #endif
177 #ifndef elf_backend_gc_mark_extra_sections
178 #define elf_backend_gc_mark_extra_sections _bfd_elf_gc_mark_extra_sections
179 #endif
180 #ifndef elf_backend_gc_sweep_hook
181 #define elf_backend_gc_sweep_hook       NULL
182 #endif
183 #ifndef bfd_elfNN_bfd_gc_sections
184 #define bfd_elfNN_bfd_gc_sections bfd_elf_gc_sections
185 #endif
186
187 #ifndef bfd_elfNN_bfd_merge_sections
188 #define bfd_elfNN_bfd_merge_sections \
189   _bfd_elf_merge_sections
190 #endif
191
192 #ifndef bfd_elfNN_bfd_is_group_section
193 #define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section
194 #endif
195
196 #ifndef bfd_elfNN_bfd_discard_group
197 #define bfd_elfNN_bfd_discard_group bfd_generic_discard_group
198 #endif
199
200 #ifndef bfd_elfNN_section_already_linked
201 #define bfd_elfNN_section_already_linked \
202   _bfd_elf_section_already_linked
203 #endif
204
205 #ifndef bfd_elfNN_bfd_define_common_symbol
206 #define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol
207 #endif
208
209 #ifndef bfd_elfNN_bfd_lookup_section_flags
210 #define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags
211 #endif
212
213 #ifndef bfd_elfNN_bfd_make_debug_symbol
214 #define bfd_elfNN_bfd_make_debug_symbol \
215   ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
216 #endif
217
218 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
219 #define bfd_elfNN_bfd_copy_private_symbol_data \
220   _bfd_elf_copy_private_symbol_data
221 #endif
222
223 #ifndef bfd_elfNN_bfd_copy_private_section_data
224 #define bfd_elfNN_bfd_copy_private_section_data \
225   _bfd_elf_copy_private_section_data
226 #endif
227 #ifndef bfd_elfNN_bfd_copy_private_header_data
228 #define bfd_elfNN_bfd_copy_private_header_data \
229   _bfd_elf_copy_private_header_data
230 #endif
231 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
232 #define bfd_elfNN_bfd_copy_private_bfd_data \
233   _bfd_elf_copy_private_bfd_data
234 #endif
235 #ifndef bfd_elfNN_bfd_print_private_bfd_data
236 #define bfd_elfNN_bfd_print_private_bfd_data \
237   _bfd_elf_print_private_bfd_data
238 #endif
239 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
240 #define bfd_elfNN_bfd_merge_private_bfd_data \
241   ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_true)
242 #endif
243 #ifndef bfd_elfNN_bfd_set_private_flags
244 #define bfd_elfNN_bfd_set_private_flags \
245   ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
246 #endif
247 #ifndef bfd_elfNN_bfd_is_local_label_name
248 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
249 #endif
250 #ifndef bfd_elfNN_bfd_is_target_special_symbol
251 #define bfd_elfNN_bfd_is_target_special_symbol \
252   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
253 #endif
254
255 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
256 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
257   _bfd_elf_get_dynamic_reloc_upper_bound
258 #endif
259 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
260 #define bfd_elfNN_canonicalize_dynamic_reloc \
261   _bfd_elf_canonicalize_dynamic_reloc
262 #endif
263
264 #ifdef elf_backend_relocate_section
265 #ifndef bfd_elfNN_bfd_link_hash_table_create
266 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
267 #endif
268 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
269 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
270   _bfd_elf_copy_link_hash_symbol_type
271 #endif
272 #ifndef bfd_elfNN_bfd_link_add_symbols
273 #define bfd_elfNN_bfd_link_add_symbols  bfd_elf_link_add_symbols
274 #endif
275 #ifndef bfd_elfNN_bfd_define_start_stop
276 #define bfd_elfNN_bfd_define_start_stop bfd_elf_define_start_stop
277 #endif
278 #ifndef bfd_elfNN_bfd_final_link
279 #define bfd_elfNN_bfd_final_link        bfd_elf_final_link
280 #endif
281 #else /* ! defined (elf_backend_relocate_section) */
282 /* If no backend relocate_section routine, use the generic linker.
283    Note - this will prevent the port from being able to use some of
284    the other features of the ELF linker, because the generic hash structure
285    does not have the fields needed by the ELF linker.  In particular it
286    means that linking directly to S-records will not work.  */
287 #ifndef bfd_elfNN_bfd_link_hash_table_create
288 #define bfd_elfNN_bfd_link_hash_table_create \
289   _bfd_generic_link_hash_table_create
290 #endif
291 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
292 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
293   _bfd_generic_copy_link_hash_symbol_type
294 #endif
295 #ifndef bfd_elfNN_bfd_link_add_symbols
296 #define bfd_elfNN_bfd_link_add_symbols  _bfd_generic_link_add_symbols
297 #endif
298 #ifndef bfd_elfNN_bfd_define_start_stop
299 #define bfd_elfNN_bfd_define_start_stop bfd_generic_define_start_stop
300 #endif
301 #ifndef bfd_elfNN_bfd_final_link
302 #define bfd_elfNN_bfd_final_link        _bfd_generic_final_link
303 #endif
304 #endif /* ! defined (elf_backend_relocate_section) */
305
306 #ifndef bfd_elfNN_bfd_link_just_syms
307 #define bfd_elfNN_bfd_link_just_syms    _bfd_elf_link_just_syms
308 #endif
309
310 #ifndef bfd_elfNN_bfd_link_split_section
311 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
312 #endif
313
314 #ifndef bfd_elfNN_bfd_link_check_relocs
315 #define bfd_elfNN_bfd_link_check_relocs  _bfd_elf_link_check_relocs
316 #endif
317
318 #ifndef bfd_elfNN_archive_p
319 #define bfd_elfNN_archive_p bfd_generic_archive_p
320 #endif
321
322 #ifndef bfd_elfNN_write_archive_contents
323 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
324 #endif
325
326 #ifndef bfd_elfNN_mkobject
327 #define bfd_elfNN_mkobject bfd_elf_make_object
328 #endif
329
330 #ifndef bfd_elfNN_mkcorefile
331 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
332 #endif
333
334 #ifndef bfd_elfNN_mkarchive
335 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
336 #endif
337
338 #ifndef bfd_elfNN_print_symbol
339 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
340 #endif
341
342 #ifndef elf_symbol_leading_char
343 #define elf_symbol_leading_char 0
344 #endif
345
346 #ifndef elf_info_to_howto
347 #define elf_info_to_howto 0
348 #endif
349
350 #ifndef elf_info_to_howto_rel
351 #define elf_info_to_howto_rel 0
352 #endif
353
354 #ifndef elf_backend_arch_data
355 #define elf_backend_arch_data NULL
356 #endif
357
358 #ifndef ELF_TARGET_ID
359 #define ELF_TARGET_ID   GENERIC_ELF_DATA
360 #endif
361
362 #ifndef ELF_OSABI
363 #define ELF_OSABI ELFOSABI_NONE
364 #endif
365
366 #ifndef ELF_MAXPAGESIZE
367 # error ELF_MAXPAGESIZE is not defined
368 #define ELF_MAXPAGESIZE 1
369 #endif
370
371 #ifndef ELF_COMMONPAGESIZE
372 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
373 #endif
374
375 #ifndef ELF_MINPAGESIZE
376 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
377 #endif
378
379 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
380 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
381 #endif
382 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
383 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
384 #endif
385
386 #ifndef ELF_DYNAMIC_SEC_FLAGS
387 /* Note that we set the SEC_IN_MEMORY flag for these sections.  */
388 #define ELF_DYNAMIC_SEC_FLAGS                   \
389   (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS      \
390    | SEC_IN_MEMORY | SEC_LINKER_CREATED)
391 #endif
392
393 #ifndef elf_backend_collect
394 #define elf_backend_collect FALSE
395 #endif
396 #ifndef elf_backend_type_change_ok
397 #define elf_backend_type_change_ok FALSE
398 #endif
399
400 #ifndef elf_backend_sym_is_global
401 #define elf_backend_sym_is_global       0
402 #endif
403 #ifndef elf_backend_object_p
404 #define elf_backend_object_p            0
405 #endif
406 #ifndef elf_backend_symbol_processing
407 #define elf_backend_symbol_processing   0
408 #endif
409 #ifndef elf_backend_symbol_table_processing
410 #define elf_backend_symbol_table_processing     0
411 #endif
412 #ifndef elf_backend_get_symbol_type
413 #define elf_backend_get_symbol_type 0
414 #endif
415 #ifndef elf_backend_archive_symbol_lookup
416 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
417 #endif
418 #ifndef elf_backend_name_local_section_symbols
419 #define elf_backend_name_local_section_symbols  0
420 #endif
421 #ifndef elf_backend_section_processing
422 #define elf_backend_section_processing  0
423 #endif
424 #ifndef elf_backend_section_from_shdr
425 #define elf_backend_section_from_shdr   _bfd_elf_make_section_from_shdr
426 #endif
427 #ifndef elf_backend_section_flags
428 #define elf_backend_section_flags       0
429 #endif
430 #ifndef elf_backend_get_sec_type_attr
431 #define elf_backend_get_sec_type_attr   _bfd_elf_get_sec_type_attr
432 #endif
433 #ifndef elf_backend_section_from_phdr
434 #define elf_backend_section_from_phdr   _bfd_elf_make_section_from_phdr
435 #endif
436 #ifndef elf_backend_fake_sections
437 #define elf_backend_fake_sections       0
438 #endif
439 #ifndef elf_backend_section_from_bfd_section
440 #define elf_backend_section_from_bfd_section    0
441 #endif
442 #ifndef elf_backend_add_symbol_hook
443 #define elf_backend_add_symbol_hook     0
444 #endif
445 #ifndef elf_backend_link_output_symbol_hook
446 #define elf_backend_link_output_symbol_hook 0
447 #endif
448 #ifndef elf_backend_create_dynamic_sections
449 #define elf_backend_create_dynamic_sections 0
450 #endif
451 #ifndef elf_backend_omit_section_dynsym
452 #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym
453 #endif
454 #ifndef elf_backend_relocs_compatible
455 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
456 #endif
457 #ifndef elf_backend_check_relocs
458 #define elf_backend_check_relocs        0
459 #endif
460 #ifndef elf_backend_check_directives
461 #define elf_backend_check_directives    0
462 #endif
463 #ifndef elf_backend_notice_as_needed
464 #define elf_backend_notice_as_needed    _bfd_elf_notice_as_needed
465 #endif
466 #ifndef elf_backend_adjust_dynamic_symbol
467 #define elf_backend_adjust_dynamic_symbol 0
468 #endif
469 #ifndef elf_backend_always_size_sections
470 #define elf_backend_always_size_sections 0
471 #endif
472 #ifndef elf_backend_size_dynamic_sections
473 #define elf_backend_size_dynamic_sections 0
474 #endif
475 #ifndef elf_backend_init_index_section
476 #define elf_backend_init_index_section \
477  ((void (*) (bfd *, struct bfd_link_info *)) bfd_void)
478 #endif
479 #ifndef elf_backend_relocate_section
480 #define elf_backend_relocate_section    0
481 #endif
482 #ifndef elf_backend_finish_dynamic_symbol
483 #define elf_backend_finish_dynamic_symbol       0
484 #endif
485 #ifndef elf_backend_finish_dynamic_sections
486 #define elf_backend_finish_dynamic_sections     0
487 #endif
488 #ifndef elf_backend_begin_write_processing
489 #define elf_backend_begin_write_processing      0
490 #endif
491 #ifndef elf_backend_final_write_processing
492 #define elf_backend_final_write_processing      0
493 #endif
494 #ifndef elf_backend_additional_program_headers
495 #define elf_backend_additional_program_headers  0
496 #endif
497 #ifndef elf_backend_modify_segment_map
498 #define elf_backend_modify_segment_map  0
499 #endif
500 #ifndef elf_backend_modify_program_headers
501 #define elf_backend_modify_program_headers      0
502 #endif
503 #ifndef elf_backend_allow_non_load_phdr
504 #define elf_backend_allow_non_load_phdr \
505   ((bfd_boolean (*) (bfd *, const Elf_Internal_Phdr *, unsigned)) bfd_false)
506 #endif
507 #ifndef elf_backend_ecoff_debug_swap
508 #define elf_backend_ecoff_debug_swap    0
509 #endif
510 #ifndef elf_backend_bfd_from_remote_memory
511 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
512 #endif
513 #ifndef elf_backend_got_header_size
514 #define elf_backend_got_header_size     0
515 #endif
516 #ifndef elf_backend_got_elt_size
517 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
518 #endif
519 #ifndef elf_backend_obj_attrs_vendor
520 #define elf_backend_obj_attrs_vendor            NULL
521 #endif
522 #ifndef elf_backend_obj_attrs_section
523 #define elf_backend_obj_attrs_section           NULL
524 #endif
525 #ifndef elf_backend_obj_attrs_arg_type
526 #define elf_backend_obj_attrs_arg_type          NULL
527 #endif
528 #ifndef elf_backend_obj_attrs_section_type
529 #define elf_backend_obj_attrs_section_type              SHT_GNU_ATTRIBUTES
530 #endif
531 #ifndef elf_backend_obj_attrs_order
532 #define elf_backend_obj_attrs_order             NULL
533 #endif
534 #ifndef elf_backend_obj_attrs_handle_unknown
535 #define elf_backend_obj_attrs_handle_unknown    NULL
536 #endif
537 #ifndef elf_backend_parse_gnu_properties
538 #define elf_backend_parse_gnu_properties        NULL
539 #endif
540 #ifndef elf_backend_merge_gnu_properties
541 #define elf_backend_merge_gnu_properties        NULL
542 #endif
543 #ifndef elf_backend_setup_gnu_properties
544 #define elf_backend_setup_gnu_properties        _bfd_elf_link_setup_gnu_properties
545 #endif
546 #ifndef elf_backend_static_tls_alignment
547 #define elf_backend_static_tls_alignment        1
548 #endif
549 #ifndef elf_backend_post_process_headers
550 #define elf_backend_post_process_headers        _bfd_elf_post_process_headers
551 #endif
552 #ifndef elf_backend_print_symbol_all
553 #define elf_backend_print_symbol_all            NULL
554 #endif
555 #ifndef elf_backend_output_arch_local_syms
556 #define elf_backend_output_arch_local_syms      NULL
557 #endif
558 #ifndef elf_backend_output_arch_syms
559 #define elf_backend_output_arch_syms            NULL
560 #endif
561 #ifndef elf_backend_filter_implib_symbols
562 #define elf_backend_filter_implib_symbols       NULL
563 #endif
564 #ifndef elf_backend_copy_indirect_symbol
565 #define elf_backend_copy_indirect_symbol        _bfd_elf_link_hash_copy_indirect
566 #endif
567 #ifndef elf_backend_hide_symbol
568 #define elf_backend_hide_symbol                 _bfd_elf_link_hash_hide_symbol
569 #endif
570 #ifndef elf_backend_fixup_symbol
571 #define elf_backend_fixup_symbol                NULL
572 #endif
573 #ifndef elf_backend_merge_symbol_attribute
574 #define elf_backend_merge_symbol_attribute      NULL
575 #endif
576 #ifndef elf_backend_get_target_dtag
577 #define elf_backend_get_target_dtag             NULL
578 #endif
579 #ifndef elf_backend_ignore_undef_symbol
580 #define elf_backend_ignore_undef_symbol         NULL
581 #endif
582 #ifndef elf_backend_emit_relocs
583 #define elf_backend_emit_relocs                 _bfd_elf_link_output_relocs
584 #endif
585 #ifndef elf_backend_update_relocs
586 #define elf_backend_update_relocs               NULL
587 #endif
588 #ifndef elf_backend_count_relocs
589 #define elf_backend_count_relocs                NULL
590 #endif
591 #ifndef elf_backend_count_additional_relocs
592 #define elf_backend_count_additional_relocs     NULL
593 #endif
594 #ifndef elf_backend_sort_relocs_p
595 #define elf_backend_sort_relocs_p               NULL
596 #endif
597 #ifndef elf_backend_grok_prstatus
598 #define elf_backend_grok_prstatus               NULL
599 #endif
600 #ifndef elf_backend_grok_psinfo
601 #define elf_backend_grok_psinfo                 NULL
602 #endif
603 #ifndef elf_backend_grok_freebsd_prstatus
604 #define elf_backend_grok_freebsd_prstatus       NULL
605 #endif
606 #ifndef elf_backend_write_core_note
607 #define elf_backend_write_core_note             NULL
608 #endif
609 #ifndef elf_backend_lookup_section_flags_hook
610 #define elf_backend_lookup_section_flags_hook   NULL
611 #endif
612 #ifndef elf_backend_reloc_type_class
613 #define elf_backend_reloc_type_class            _bfd_elf_reloc_type_class
614 #endif
615 #ifndef elf_backend_discard_info
616 #define elf_backend_discard_info                NULL
617 #endif
618 #ifndef elf_backend_ignore_discarded_relocs
619 #define elf_backend_ignore_discarded_relocs     NULL
620 #endif
621 #ifndef elf_backend_action_discarded
622 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
623 #endif
624 #ifndef elf_backend_eh_frame_address_size
625 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
626 #endif
627 #ifndef elf_backend_can_make_relative_eh_frame
628 #define elf_backend_can_make_relative_eh_frame  _bfd_elf_can_make_relative
629 #endif
630 #ifndef elf_backend_can_make_lsda_relative_eh_frame
631 #define elf_backend_can_make_lsda_relative_eh_frame     _bfd_elf_can_make_relative
632 #endif
633 #ifndef elf_backend_encode_eh_address
634 #define elf_backend_encode_eh_address           _bfd_elf_encode_eh_address
635 #endif
636 #ifndef elf_backend_write_section
637 #define elf_backend_write_section               NULL
638 #endif
639 #ifndef elf_backend_mips_irix_compat
640 #define elf_backend_mips_irix_compat            NULL
641 #endif
642 #ifndef elf_backend_mips_rtype_to_howto
643 #define elf_backend_mips_rtype_to_howto         NULL
644 #endif
645
646 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
647    sections, but not both.  They defined USE_REL to indicate SHT_REL
648    sections, and left it undefined to indicated SHT_RELA sections.
649    For backwards compatibility, we still support this usage.  */
650 #ifndef USE_REL
651 #define USE_REL 0
652 #endif
653
654 /* Use these in new code.  */
655 #ifndef elf_backend_may_use_rel_p
656 #define elf_backend_may_use_rel_p USE_REL
657 #endif
658 #ifndef elf_backend_may_use_rela_p
659 #define elf_backend_may_use_rela_p !USE_REL
660 #endif
661 #ifndef elf_backend_default_use_rela_p
662 #define elf_backend_default_use_rela_p !USE_REL
663 #endif
664 #ifndef elf_backend_rela_plts_and_copies_p
665 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
666 #endif
667
668 #ifndef elf_backend_rela_normal
669 #define elf_backend_rela_normal 0
670 #endif
671
672 #ifndef elf_backend_dtrel_excludes_plt
673 #define elf_backend_dtrel_excludes_plt 0
674 #endif
675
676 #ifndef elf_backend_plt_sym_val
677 #define elf_backend_plt_sym_val NULL
678 #endif
679 #ifndef elf_backend_relplt_name
680 #define elf_backend_relplt_name NULL
681 #endif
682
683 #ifndef ELF_MACHINE_ALT1
684 #define ELF_MACHINE_ALT1 0
685 #endif
686
687 #ifndef ELF_MACHINE_ALT2
688 #define ELF_MACHINE_ALT2 0
689 #endif
690
691 #ifndef elf_backend_size_info
692 #define elf_backend_size_info _bfd_elfNN_size_info
693 #endif
694
695 #ifndef elf_backend_special_sections
696 #define elf_backend_special_sections NULL
697 #endif
698
699 #ifndef elf_backend_sign_extend_vma
700 #define elf_backend_sign_extend_vma 0
701 #endif
702
703 #ifndef elf_backend_link_order_error_handler
704 #define elf_backend_link_order_error_handler _bfd_error_handler
705 #endif
706
707 #ifndef elf_backend_common_definition
708 #define elf_backend_common_definition _bfd_elf_common_definition
709 #endif
710
711 #ifndef elf_backend_common_section_index
712 #define elf_backend_common_section_index _bfd_elf_common_section_index
713 #endif
714
715 #ifndef elf_backend_common_section
716 #define elf_backend_common_section _bfd_elf_common_section
717 #endif
718
719 #ifndef elf_backend_merge_symbol
720 #define elf_backend_merge_symbol NULL
721 #endif
722
723 #ifndef elf_backend_hash_symbol
724 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
725 #endif
726
727 #ifndef elf_backend_is_function_type
728 #define elf_backend_is_function_type _bfd_elf_is_function_type
729 #endif
730
731 #ifndef elf_backend_maybe_function_sym
732 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
733 #endif
734
735 #ifndef elf_backend_get_reloc_section
736 #define elf_backend_get_reloc_section _bfd_elf_plt_get_reloc_section
737 #endif
738
739 #ifndef elf_backend_copy_special_section_fields
740 #define elf_backend_copy_special_section_fields NULL
741 #endif
742
743 #ifndef elf_backend_compact_eh_encoding
744 #define elf_backend_compact_eh_encoding NULL
745 #endif
746
747 #ifndef elf_backend_cant_unwind_opcode
748 #define elf_backend_cant_unwind_opcode 0
749 #endif
750
751 #ifndef elf_match_priority
752 #define elf_match_priority \
753   (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
754 #endif
755
756 extern const struct elf_size_info _bfd_elfNN_size_info;
757
758 static struct elf_backend_data elfNN_bed =
759 {
760   ELF_ARCH,                     /* arch */
761   ELF_TARGET_ID,                /* target_id */
762   ELF_MACHINE_CODE,             /* elf_machine_code */
763   ELF_OSABI,                    /* elf_osabi  */
764   ELF_MAXPAGESIZE,              /* maxpagesize */
765   ELF_MINPAGESIZE,              /* minpagesize */
766   ELF_COMMONPAGESIZE,           /* commonpagesize */
767   ELF_DYNAMIC_SEC_FLAGS,        /* dynamic_sec_flags */
768   elf_backend_arch_data,
769   elf_info_to_howto,
770   elf_info_to_howto_rel,
771   elf_backend_sym_is_global,
772   elf_backend_object_p,
773   elf_backend_symbol_processing,
774   elf_backend_symbol_table_processing,
775   elf_backend_get_symbol_type,
776   elf_backend_archive_symbol_lookup,
777   elf_backend_name_local_section_symbols,
778   elf_backend_section_processing,
779   elf_backend_section_from_shdr,
780   elf_backend_section_flags,
781   elf_backend_get_sec_type_attr,
782   elf_backend_section_from_phdr,
783   elf_backend_fake_sections,
784   elf_backend_section_from_bfd_section,
785   elf_backend_add_symbol_hook,
786   elf_backend_link_output_symbol_hook,
787   elf_backend_create_dynamic_sections,
788   elf_backend_omit_section_dynsym,
789   elf_backend_relocs_compatible,
790   elf_backend_check_relocs,
791   elf_backend_check_directives,
792   elf_backend_notice_as_needed,
793   elf_backend_adjust_dynamic_symbol,
794   elf_backend_always_size_sections,
795   elf_backend_size_dynamic_sections,
796   elf_backend_init_index_section,
797   elf_backend_relocate_section,
798   elf_backend_finish_dynamic_symbol,
799   elf_backend_finish_dynamic_sections,
800   elf_backend_begin_write_processing,
801   elf_backend_final_write_processing,
802   elf_backend_additional_program_headers,
803   elf_backend_modify_segment_map,
804   elf_backend_modify_program_headers,
805   elf_backend_allow_non_load_phdr,
806   elf_backend_gc_keep,
807   elf_backend_gc_mark_dynamic_ref,
808   elf_backend_gc_mark_hook,
809   elf_backend_gc_mark_extra_sections,
810   elf_backend_gc_sweep_hook,
811   elf_backend_post_process_headers,
812   elf_backend_print_symbol_all,
813   elf_backend_output_arch_local_syms,
814   elf_backend_output_arch_syms,
815   elf_backend_filter_implib_symbols,
816   elf_backend_copy_indirect_symbol,
817   elf_backend_hide_symbol,
818   elf_backend_fixup_symbol,
819   elf_backend_merge_symbol_attribute,
820   elf_backend_get_target_dtag,
821   elf_backend_ignore_undef_symbol,
822   elf_backend_emit_relocs,
823   elf_backend_update_relocs,
824   elf_backend_count_relocs,
825   elf_backend_count_additional_relocs,
826   elf_backend_sort_relocs_p,
827   elf_backend_grok_prstatus,
828   elf_backend_grok_psinfo,
829   elf_backend_grok_freebsd_prstatus,
830   elf_backend_write_core_note,
831   elf_backend_lookup_section_flags_hook,
832   elf_backend_reloc_type_class,
833   elf_backend_discard_info,
834   elf_backend_ignore_discarded_relocs,
835   elf_backend_action_discarded,
836   elf_backend_eh_frame_address_size,
837   elf_backend_can_make_relative_eh_frame,
838   elf_backend_can_make_lsda_relative_eh_frame,
839   elf_backend_encode_eh_address,
840   elf_backend_write_section,
841   elf_backend_mips_irix_compat,
842   elf_backend_mips_rtype_to_howto,
843   elf_backend_ecoff_debug_swap,
844   elf_backend_bfd_from_remote_memory,
845   elf_backend_plt_sym_val,
846   elf_backend_common_definition,
847   elf_backend_common_section_index,
848   elf_backend_common_section,
849   elf_backend_merge_symbol,
850   elf_backend_hash_symbol,
851   elf_backend_is_function_type,
852   elf_backend_maybe_function_sym,
853   elf_backend_get_reloc_section,
854   elf_backend_copy_special_section_fields,
855   elf_backend_link_order_error_handler,
856   elf_backend_relplt_name,
857   ELF_MACHINE_ALT1,
858   ELF_MACHINE_ALT2,
859   &elf_backend_size_info,
860   elf_backend_special_sections,
861   elf_backend_got_header_size,
862   elf_backend_got_elt_size,
863   elf_backend_obj_attrs_vendor,
864   elf_backend_obj_attrs_section,
865   elf_backend_obj_attrs_arg_type,
866   elf_backend_obj_attrs_section_type,
867   elf_backend_obj_attrs_order,
868   elf_backend_obj_attrs_handle_unknown,
869   elf_backend_parse_gnu_properties,
870   elf_backend_merge_gnu_properties,
871   elf_backend_setup_gnu_properties,
872   elf_backend_compact_eh_encoding,
873   elf_backend_cant_unwind_opcode,
874   elf_backend_static_tls_alignment,
875   elf_backend_stack_align,
876   elf_backend_strtab_flags,
877   elf_backend_collect,
878   elf_backend_type_change_ok,
879   elf_backend_may_use_rel_p,
880   elf_backend_may_use_rela_p,
881   elf_backend_default_use_rela_p,
882   elf_backend_rela_plts_and_copies_p,
883   elf_backend_rela_normal,
884   elf_backend_dtrel_excludes_plt,
885   elf_backend_sign_extend_vma,
886   elf_backend_want_got_plt,
887   elf_backend_plt_readonly,
888   elf_backend_want_plt_sym,
889   elf_backend_plt_not_loaded,
890   elf_backend_plt_alignment,
891   elf_backend_can_gc_sections,
892   elf_backend_can_refcount,
893   elf_backend_want_got_sym,
894   elf_backend_want_dynbss,
895   elf_backend_want_dynrelro,
896   elf_backend_want_p_paddr_set_to_zero,
897   elf_backend_no_page_alias,
898   elf_backend_default_execstack,
899   elf_backend_caches_rawsize,
900   elf_backend_extern_protected_data,
901   elf_backend_always_renumber_dynsyms,
902   elf_backend_linux_prpsinfo32_ugid16
903 };
904
905 /* Forward declaration for use when initialising alternative_target field.  */
906 #ifdef TARGET_LITTLE_SYM
907 extern const bfd_target TARGET_LITTLE_SYM;
908 #endif
909
910 #ifdef TARGET_BIG_SYM
911 const bfd_target TARGET_BIG_SYM =
912 {
913   /* name: identify kind of target */
914   TARGET_BIG_NAME,
915
916   /* flavour: general indication about file */
917   bfd_target_elf_flavour,
918
919   /* byteorder: data is big endian */
920   BFD_ENDIAN_BIG,
921
922   /* header_byteorder: header is also big endian */
923   BFD_ENDIAN_BIG,
924
925   /* object_flags: mask of all file flags */
926   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
927    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
928    | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
929
930   /* section_flags: mask of all section flags */
931   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
932    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
933    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
934
935    /* leading_symbol_char: is the first char of a user symbol
936       predictable, and if so what is it */
937   elf_symbol_leading_char,
938
939   /* ar_pad_char: pad character for filenames within an archive header
940      FIXME:  this really has nothing to do with ELF, this is a characteristic
941      of the archiver and/or os and should be independently tunable */
942   '/',
943
944   /* ar_max_namelen: maximum number of characters in an archive header
945      FIXME:  this really has nothing to do with ELF, this is a characteristic
946      of the archiver and should be independently tunable.  The System V ABI,
947      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
948   15,
949
950   elf_match_priority,
951
952   /* Routines to byte-swap various sized integers from the data sections */
953   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
954     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
955     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
956
957   /* Routines to byte-swap various sized integers from the file headers */
958   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
959     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
960     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
961
962   /* bfd_check_format: check the format of a file being read */
963   { _bfd_dummy_target,          /* unknown format */
964     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
965     bfd_elfNN_archive_p,        /* an archive */
966     bfd_elfNN_core_file_p       /* a core file */
967   },
968
969   /* bfd_set_format: set the format of a file being written */
970   { bfd_false,
971     bfd_elfNN_mkobject,
972     bfd_elfNN_mkarchive,
973     bfd_elfNN_mkcorefile
974   },
975
976   /* bfd_write_contents: write cached information into a file being written */
977   { bfd_false,
978     bfd_elfNN_write_object_contents,
979     bfd_elfNN_write_archive_contents,
980     bfd_elfNN_write_corefile_contents,
981   },
982
983   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
984   BFD_JUMP_TABLE_COPY (bfd_elfNN),
985   BFD_JUMP_TABLE_CORE (bfd_elfNN),
986 #ifdef bfd_elfNN_archive_functions
987   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
988 #elif defined USE_64_BIT_ARCHIVE
989   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
990 #else
991   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
992 #endif
993   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
994   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
995   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
996   BFD_JUMP_TABLE_LINK (bfd_elfNN),
997   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
998
999   /* Alternative endian target.  */
1000 #ifdef TARGET_LITTLE_SYM
1001   & TARGET_LITTLE_SYM,
1002 #else
1003   NULL,
1004 #endif
1005
1006   /* backend_data: */
1007   &elfNN_bed
1008 };
1009 #endif
1010
1011 #ifdef TARGET_LITTLE_SYM
1012 const bfd_target TARGET_LITTLE_SYM =
1013 {
1014   /* name: identify kind of target */
1015   TARGET_LITTLE_NAME,
1016
1017   /* flavour: general indication about file */
1018   bfd_target_elf_flavour,
1019
1020   /* byteorder: data is little endian */
1021   BFD_ENDIAN_LITTLE,
1022
1023   /* header_byteorder: header is also little endian */
1024   BFD_ENDIAN_LITTLE,
1025
1026   /* object_flags: mask of all file flags */
1027   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
1028    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS
1029    | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON),
1030
1031   /* section_flags: mask of all section flags */
1032   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
1033    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
1034    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
1035
1036    /* leading_symbol_char: is the first char of a user symbol
1037       predictable, and if so what is it */
1038   elf_symbol_leading_char,
1039
1040   /* ar_pad_char: pad character for filenames within an archive header
1041      FIXME:  this really has nothing to do with ELF, this is a characteristic
1042      of the archiver and/or os and should be independently tunable */
1043   '/',
1044
1045   /* ar_max_namelen: maximum number of characters in an archive header
1046      FIXME:  this really has nothing to do with ELF, this is a characteristic
1047      of the archiver and should be independently tunable.  The System V ABI,
1048      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
1049   15,
1050
1051   elf_match_priority,
1052
1053   /* Routines to byte-swap various sized integers from the data sections */
1054   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1055     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1056     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1057
1058   /* Routines to byte-swap various sized integers from the file headers */
1059   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1060     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1061     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1062
1063   /* bfd_check_format: check the format of a file being read */
1064   { _bfd_dummy_target,          /* unknown format */
1065     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
1066     bfd_elfNN_archive_p,        /* an archive */
1067     bfd_elfNN_core_file_p       /* a core file */
1068   },
1069
1070   /* bfd_set_format: set the format of a file being written */
1071   { bfd_false,
1072     bfd_elfNN_mkobject,
1073     bfd_elfNN_mkarchive,
1074     bfd_elfNN_mkcorefile
1075   },
1076
1077   /* bfd_write_contents: write cached information into a file being written */
1078   { bfd_false,
1079     bfd_elfNN_write_object_contents,
1080     bfd_elfNN_write_archive_contents,
1081     bfd_elfNN_write_corefile_contents,
1082   },
1083
1084   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
1085   BFD_JUMP_TABLE_COPY (bfd_elfNN),
1086   BFD_JUMP_TABLE_CORE (bfd_elfNN),
1087 #ifdef bfd_elfNN_archive_functions
1088   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
1089 #elif defined USE_64_BIT_ARCHIVE
1090   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
1091 #else
1092   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
1093 #endif
1094   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
1095   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
1096   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
1097   BFD_JUMP_TABLE_LINK (bfd_elfNN),
1098   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
1099
1100   /* Alternative endian target.  */
1101 #ifdef TARGET_BIG_SYM
1102   & TARGET_BIG_SYM,
1103 #else
1104   NULL,
1105 #endif
1106
1107   /* backend_data: */
1108   &elfNN_bed
1109 };
1110 #endif