bfd/
[external/binutils.git] / bfd / elfxx-target.h
1 /* Target definitions for NN-bit ELF
2    Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
3    2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
4    Free Software Foundation, Inc.
5
6    This file is part of BFD, the Binary File Descriptor library.
7
8    This program is free software; you can redistribute it and/or modify
9    it under the terms of the GNU General Public License as published by
10    the Free Software Foundation; either version 3 of the License, or
11    (at your option) any later version.
12
13    This program is distributed in the hope that it will be useful,
14    but WITHOUT ANY WARRANTY; without even the implied warranty of
15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16    GNU General Public License for more details.
17
18    You should have received a copy of the GNU General Public License
19    along with this program; if not, write to the Free Software
20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21    MA 02110-1301, USA.  */
22
23
24 /* This structure contains everything that BFD knows about a target.
25    It includes things like its byte order, name, what routines to call
26    to do various operations, etc.  Every BFD points to a target structure
27    with its "xvec" member.
28
29    There are two such structures here:  one for big-endian machines and
30    one for little-endian machines.   */
31
32 #ifndef bfd_elfNN_close_and_cleanup
33 #define bfd_elfNN_close_and_cleanup _bfd_elf_close_and_cleanup
34 #endif
35 #ifndef bfd_elfNN_bfd_free_cached_info
36 #define bfd_elfNN_bfd_free_cached_info _bfd_free_cached_info
37 #endif
38 #ifndef bfd_elfNN_get_section_contents
39 #define bfd_elfNN_get_section_contents _bfd_generic_get_section_contents
40 #endif
41
42 #define bfd_elfNN_canonicalize_dynamic_symtab \
43   _bfd_elf_canonicalize_dynamic_symtab
44 #ifndef bfd_elfNN_get_synthetic_symtab
45 #define bfd_elfNN_get_synthetic_symtab \
46   _bfd_elf_get_synthetic_symtab
47 #endif
48 #ifndef bfd_elfNN_canonicalize_reloc
49 #define bfd_elfNN_canonicalize_reloc    _bfd_elf_canonicalize_reloc
50 #endif
51 #ifndef bfd_elfNN_find_nearest_line
52 #define bfd_elfNN_find_nearest_line     _bfd_elf_find_nearest_line
53 #endif
54 #ifndef bfd_elfNN_find_inliner_info
55 #define bfd_elfNN_find_inliner_info     _bfd_elf_find_inliner_info
56 #endif
57 #define bfd_elfNN_read_minisymbols      _bfd_elf_read_minisymbols
58 #define bfd_elfNN_minisymbol_to_symbol  _bfd_elf_minisymbol_to_symbol
59 #define bfd_elfNN_get_dynamic_symtab_upper_bound \
60   _bfd_elf_get_dynamic_symtab_upper_bound
61 #define bfd_elfNN_get_lineno            _bfd_elf_get_lineno
62 #ifndef bfd_elfNN_get_reloc_upper_bound
63 #define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound
64 #endif
65 #ifndef bfd_elfNN_get_symbol_info
66 #define bfd_elfNN_get_symbol_info       _bfd_elf_get_symbol_info
67 #endif
68 #define bfd_elfNN_canonicalize_symtab   _bfd_elf_canonicalize_symtab
69 #define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound
70 #define bfd_elfNN_make_empty_symbol     _bfd_elf_make_empty_symbol
71 #ifndef bfd_elfNN_new_section_hook
72 #define bfd_elfNN_new_section_hook      _bfd_elf_new_section_hook
73 #endif
74 #define bfd_elfNN_set_arch_mach         _bfd_elf_set_arch_mach
75 #ifndef bfd_elfNN_set_section_contents
76 #define bfd_elfNN_set_section_contents  _bfd_elf_set_section_contents
77 #endif
78 #define bfd_elfNN_sizeof_headers        _bfd_elf_sizeof_headers
79 #define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents
80 #define bfd_elfNN_write_corefile_contents _bfd_elf_write_corefile_contents
81
82 #define bfd_elfNN_get_section_contents_in_window \
83   _bfd_generic_get_section_contents_in_window
84
85 #ifndef elf_backend_can_refcount
86 #define elf_backend_can_refcount 0
87 #endif
88 #ifndef elf_backend_want_got_plt
89 #define elf_backend_want_got_plt 0
90 #endif
91 #ifndef elf_backend_plt_readonly
92 #define elf_backend_plt_readonly 0
93 #endif
94 #ifndef elf_backend_want_plt_sym
95 #define elf_backend_want_plt_sym 0
96 #endif
97 #ifndef elf_backend_plt_not_loaded
98 #define elf_backend_plt_not_loaded 0
99 #endif
100 #ifndef elf_backend_plt_alignment
101 #define elf_backend_plt_alignment 2
102 #endif
103 #ifndef elf_backend_want_dynbss
104 #define elf_backend_want_dynbss 1
105 #endif
106 #ifndef elf_backend_want_p_paddr_set_to_zero
107 #define elf_backend_want_p_paddr_set_to_zero 0
108 #endif
109 #ifndef elf_backend_default_execstack
110 #define elf_backend_default_execstack 1
111 #endif
112 #ifndef elf_backend_stack_align
113 #define elf_backend_stack_align 16
114 #endif
115
116 #define bfd_elfNN_bfd_debug_info_start  bfd_void
117 #define bfd_elfNN_bfd_debug_info_end    bfd_void
118 #define bfd_elfNN_bfd_debug_info_accumulate \
119   ((void (*) (bfd*, struct bfd_section *)) bfd_void)
120
121 #ifndef bfd_elfNN_bfd_get_relocated_section_contents
122 #define bfd_elfNN_bfd_get_relocated_section_contents \
123   bfd_generic_get_relocated_section_contents
124 #endif
125
126 #ifndef bfd_elfNN_bfd_relax_section
127 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
128 #endif
129
130 #ifndef elf_backend_can_gc_sections
131 #define elf_backend_can_gc_sections 0
132 #endif
133 #ifndef elf_backend_can_refcount
134 #define elf_backend_can_refcount 0
135 #endif
136 #ifndef elf_backend_want_got_sym
137 #define elf_backend_want_got_sym 1
138 #endif
139 #ifndef elf_backend_gc_keep
140 #define elf_backend_gc_keep             _bfd_elf_gc_keep
141 #endif
142 #ifndef elf_backend_gc_mark_dynamic_ref
143 #define elf_backend_gc_mark_dynamic_ref bfd_elf_gc_mark_dynamic_ref_symbol
144 #endif
145 #ifndef elf_backend_gc_mark_hook
146 #define elf_backend_gc_mark_hook        _bfd_elf_gc_mark_hook
147 #endif
148 #ifndef elf_backend_gc_mark_extra_sections
149 #define elf_backend_gc_mark_extra_sections _bfd_elf_gc_mark_extra_sections
150 #endif
151 #ifndef elf_backend_gc_sweep_hook
152 #define elf_backend_gc_sweep_hook       NULL
153 #endif
154 #ifndef bfd_elfNN_bfd_gc_sections
155 #define bfd_elfNN_bfd_gc_sections bfd_elf_gc_sections
156 #endif
157
158 #ifndef bfd_elfNN_bfd_merge_sections
159 #define bfd_elfNN_bfd_merge_sections \
160   _bfd_elf_merge_sections
161 #endif
162
163 #ifndef bfd_elfNN_bfd_is_group_section
164 #define bfd_elfNN_bfd_is_group_section bfd_elf_is_group_section
165 #endif
166
167 #ifndef bfd_elfNN_bfd_discard_group
168 #define bfd_elfNN_bfd_discard_group bfd_generic_discard_group
169 #endif
170
171 #ifndef bfd_elfNN_section_already_linked
172 #define bfd_elfNN_section_already_linked \
173   _bfd_elf_section_already_linked
174 #endif
175
176 #ifndef bfd_elfNN_bfd_define_common_symbol
177 #define bfd_elfNN_bfd_define_common_symbol bfd_generic_define_common_symbol
178 #endif
179
180 #ifndef bfd_elfNN_bfd_lookup_section_flags
181 #define bfd_elfNN_bfd_lookup_section_flags bfd_elf_lookup_section_flags
182 #endif
183
184 #ifndef bfd_elfNN_bfd_make_debug_symbol
185 #define bfd_elfNN_bfd_make_debug_symbol \
186   ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
187 #endif
188
189 #ifndef bfd_elfNN_bfd_copy_private_symbol_data
190 #define bfd_elfNN_bfd_copy_private_symbol_data \
191   _bfd_elf_copy_private_symbol_data
192 #endif
193
194 #ifndef bfd_elfNN_bfd_copy_private_section_data
195 #define bfd_elfNN_bfd_copy_private_section_data \
196   _bfd_elf_copy_private_section_data
197 #endif
198 #ifndef bfd_elfNN_bfd_copy_private_header_data
199 #define bfd_elfNN_bfd_copy_private_header_data \
200   _bfd_elf_copy_private_header_data
201 #endif
202 #ifndef bfd_elfNN_bfd_copy_private_bfd_data
203 #define bfd_elfNN_bfd_copy_private_bfd_data \
204   _bfd_elf_copy_private_bfd_data
205 #endif
206 #ifndef bfd_elfNN_bfd_print_private_bfd_data
207 #define bfd_elfNN_bfd_print_private_bfd_data \
208   _bfd_elf_print_private_bfd_data
209 #endif
210 #ifndef bfd_elfNN_bfd_merge_private_bfd_data
211 #define bfd_elfNN_bfd_merge_private_bfd_data \
212   ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
213 #endif
214 #ifndef bfd_elfNN_bfd_set_private_flags
215 #define bfd_elfNN_bfd_set_private_flags \
216   ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
217 #endif
218 #ifndef bfd_elfNN_bfd_is_local_label_name
219 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
220 #endif
221 #ifndef bfd_elfNN_bfd_is_target_special_symbol
222 #define bfd_elfNN_bfd_is_target_special_symbol \
223   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
224 #endif
225
226 #ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
227 #define bfd_elfNN_get_dynamic_reloc_upper_bound \
228   _bfd_elf_get_dynamic_reloc_upper_bound
229 #endif
230 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
231 #define bfd_elfNN_canonicalize_dynamic_reloc \
232   _bfd_elf_canonicalize_dynamic_reloc
233 #endif
234
235 #ifndef bfd_elfNN_bfd_link_hash_table_free
236 #define bfd_elfNN_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
237 #endif
238
239 #ifdef elf_backend_relocate_section
240 #ifndef bfd_elfNN_bfd_link_hash_table_create
241 #define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
242 #endif
243 #ifndef bfd_elfNN_bfd_link_add_symbols
244 #define bfd_elfNN_bfd_link_add_symbols  bfd_elf_link_add_symbols
245 #endif
246 #ifndef bfd_elfNN_bfd_final_link
247 #define bfd_elfNN_bfd_final_link        bfd_elf_final_link
248 #endif
249 #else /* ! defined (elf_backend_relocate_section) */
250 /* If no backend relocate_section routine, use the generic linker.
251    Note - this will prevent the port from being able to use some of
252    the other features of the ELF linker, because the generic hash structure
253    does not have the fields needed by the ELF linker.  In particular it
254    means that linking directly to S-records will not work.  */
255 #ifndef bfd_elfNN_bfd_link_hash_table_create
256 #define bfd_elfNN_bfd_link_hash_table_create \
257   _bfd_generic_link_hash_table_create
258 #endif
259 #ifndef bfd_elfNN_bfd_link_add_symbols
260 #define bfd_elfNN_bfd_link_add_symbols  _bfd_generic_link_add_symbols
261 #endif
262 #ifndef bfd_elfNN_bfd_final_link
263 #define bfd_elfNN_bfd_final_link        _bfd_generic_final_link
264 #endif
265 #endif /* ! defined (elf_backend_relocate_section) */
266
267 #ifndef bfd_elfNN_bfd_link_just_syms
268 #define bfd_elfNN_bfd_link_just_syms    _bfd_elf_link_just_syms
269 #endif
270
271 #ifndef bfd_elfNN_bfd_copy_link_hash_symbol_type
272 #define bfd_elfNN_bfd_copy_link_hash_symbol_type \
273   _bfd_elf_copy_link_hash_symbol_type
274 #endif
275
276 #ifndef bfd_elfNN_bfd_link_split_section
277 #define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
278 #endif
279
280 #ifndef bfd_elfNN_archive_p
281 #define bfd_elfNN_archive_p bfd_generic_archive_p
282 #endif
283
284 #ifndef bfd_elfNN_write_archive_contents
285 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
286 #endif
287
288 #ifndef bfd_elfNN_mkobject
289 #define bfd_elfNN_mkobject bfd_elf_make_object
290 #endif
291
292 #ifndef bfd_elfNN_mkcorefile
293 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
294 #endif
295
296 #ifndef bfd_elfNN_mkarchive
297 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
298 #endif
299
300 #ifndef bfd_elfNN_print_symbol
301 #define bfd_elfNN_print_symbol bfd_elf_print_symbol
302 #endif
303
304 #ifndef elf_symbol_leading_char
305 #define elf_symbol_leading_char 0
306 #endif
307
308 #ifndef elf_info_to_howto
309 #define elf_info_to_howto 0
310 #endif
311
312 #ifndef elf_info_to_howto_rel
313 #define elf_info_to_howto_rel 0
314 #endif
315
316 #ifndef elf_backend_arch_data
317 #define elf_backend_arch_data NULL
318 #endif
319
320 #ifndef ELF_TARGET_ID
321 #define ELF_TARGET_ID   GENERIC_ELF_DATA
322 #endif
323
324 #ifndef ELF_OSABI
325 #define ELF_OSABI ELFOSABI_NONE
326 #endif
327
328 #ifndef ELF_MAXPAGESIZE
329 # error ELF_MAXPAGESIZE is not defined
330 #define ELF_MAXPAGESIZE 1
331 #endif
332
333 #ifndef ELF_COMMONPAGESIZE
334 #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
335 #endif
336
337 #ifndef ELF_MINPAGESIZE
338 #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
339 #endif
340
341 #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
342 # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
343 #endif
344 #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
345 # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
346 #endif
347
348 #ifndef ELF_DYNAMIC_SEC_FLAGS
349 /* Note that we set the SEC_IN_MEMORY flag for these sections.  */
350 #define ELF_DYNAMIC_SEC_FLAGS                   \
351   (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS      \
352    | SEC_IN_MEMORY | SEC_LINKER_CREATED)
353 #endif
354
355 #ifndef elf_backend_collect
356 #define elf_backend_collect FALSE
357 #endif
358 #ifndef elf_backend_type_change_ok
359 #define elf_backend_type_change_ok FALSE
360 #endif
361
362 #ifndef elf_backend_sym_is_global
363 #define elf_backend_sym_is_global       0
364 #endif
365 #ifndef elf_backend_object_p
366 #define elf_backend_object_p            0
367 #endif
368 #ifndef elf_backend_symbol_processing
369 #define elf_backend_symbol_processing   0
370 #endif
371 #ifndef elf_backend_symbol_table_processing
372 #define elf_backend_symbol_table_processing     0
373 #endif
374 #ifndef elf_backend_get_symbol_type
375 #define elf_backend_get_symbol_type 0
376 #endif
377 #ifndef elf_backend_archive_symbol_lookup
378 #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
379 #endif
380 #ifndef elf_backend_name_local_section_symbols
381 #define elf_backend_name_local_section_symbols  0
382 #endif
383 #ifndef elf_backend_section_processing
384 #define elf_backend_section_processing  0
385 #endif
386 #ifndef elf_backend_section_from_shdr
387 #define elf_backend_section_from_shdr   _bfd_elf_make_section_from_shdr
388 #endif
389 #ifndef elf_backend_section_flags
390 #define elf_backend_section_flags       0
391 #endif
392 #ifndef elf_backend_get_sec_type_attr
393 #define elf_backend_get_sec_type_attr   _bfd_elf_get_sec_type_attr
394 #endif
395 #ifndef elf_backend_section_from_phdr
396 #define elf_backend_section_from_phdr   _bfd_elf_make_section_from_phdr
397 #endif
398 #ifndef elf_backend_fake_sections
399 #define elf_backend_fake_sections       0
400 #endif
401 #ifndef elf_backend_section_from_bfd_section
402 #define elf_backend_section_from_bfd_section    0
403 #endif
404 #ifndef elf_backend_add_symbol_hook
405 #define elf_backend_add_symbol_hook     0
406 #endif
407 #ifndef elf_backend_link_output_symbol_hook
408 #define elf_backend_link_output_symbol_hook 0
409 #endif
410 #ifndef elf_backend_create_dynamic_sections
411 #define elf_backend_create_dynamic_sections 0
412 #endif
413 #ifndef elf_backend_omit_section_dynsym
414 #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym
415 #endif
416 #ifndef elf_backend_relocs_compatible
417 #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
418 #endif
419 #ifndef elf_backend_check_relocs
420 #define elf_backend_check_relocs        0
421 #endif
422 #ifndef elf_backend_check_directives
423 #define elf_backend_check_directives    0
424 #endif
425 #ifndef elf_backend_as_needed_cleanup
426 #define elf_backend_as_needed_cleanup   0
427 #endif
428 #ifndef elf_backend_adjust_dynamic_symbol
429 #define elf_backend_adjust_dynamic_symbol 0
430 #endif
431 #ifndef elf_backend_always_size_sections
432 #define elf_backend_always_size_sections 0
433 #endif
434 #ifndef elf_backend_size_dynamic_sections
435 #define elf_backend_size_dynamic_sections 0
436 #endif
437 #ifndef elf_backend_init_index_section
438 #define elf_backend_init_index_section \
439  ((void (*) (bfd *, struct bfd_link_info *)) bfd_void)
440 #endif
441 #ifndef elf_backend_relocate_section
442 #define elf_backend_relocate_section    0
443 #endif
444 #ifndef elf_backend_finish_dynamic_symbol
445 #define elf_backend_finish_dynamic_symbol       0
446 #endif
447 #ifndef elf_backend_finish_dynamic_sections
448 #define elf_backend_finish_dynamic_sections     0
449 #endif
450 #ifndef elf_backend_begin_write_processing
451 #define elf_backend_begin_write_processing      0
452 #endif
453 #ifndef elf_backend_final_write_processing
454 #define elf_backend_final_write_processing      0
455 #endif
456 #ifndef elf_backend_additional_program_headers
457 #define elf_backend_additional_program_headers  0
458 #endif
459 #ifndef elf_backend_modify_segment_map
460 #define elf_backend_modify_segment_map  0
461 #endif
462 #ifndef elf_backend_modify_program_headers
463 #define elf_backend_modify_program_headers      0
464 #endif
465 #ifndef elf_backend_ecoff_debug_swap
466 #define elf_backend_ecoff_debug_swap    0
467 #endif
468 #ifndef elf_backend_bfd_from_remote_memory
469 #define elf_backend_bfd_from_remote_memory _bfd_elfNN_bfd_from_remote_memory
470 #endif
471 #ifndef elf_backend_got_header_size
472 #define elf_backend_got_header_size     0
473 #endif
474 #ifndef elf_backend_got_elt_size
475 #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
476 #endif
477 #ifndef elf_backend_obj_attrs_vendor
478 #define elf_backend_obj_attrs_vendor            NULL
479 #endif
480 #ifndef elf_backend_obj_attrs_section
481 #define elf_backend_obj_attrs_section           NULL
482 #endif
483 #ifndef elf_backend_obj_attrs_arg_type
484 #define elf_backend_obj_attrs_arg_type          NULL
485 #endif
486 #ifndef elf_backend_obj_attrs_section_type
487 #define elf_backend_obj_attrs_section_type              SHT_GNU_ATTRIBUTES
488 #endif
489 #ifndef elf_backend_obj_attrs_order
490 #define elf_backend_obj_attrs_order             NULL
491 #endif
492 #ifndef elf_backend_obj_attrs_handle_unknown
493 #define elf_backend_obj_attrs_handle_unknown    NULL
494 #endif
495 #ifndef elf_backend_static_tls_alignment
496 #define elf_backend_static_tls_alignment        1
497 #endif
498 #ifndef elf_backend_post_process_headers
499 #define elf_backend_post_process_headers        NULL
500 #endif
501 #ifndef elf_backend_print_symbol_all
502 #define elf_backend_print_symbol_all            NULL
503 #endif
504 #ifndef elf_backend_output_arch_local_syms
505 #define elf_backend_output_arch_local_syms      NULL
506 #endif
507 #ifndef elf_backend_output_arch_syms
508 #define elf_backend_output_arch_syms            NULL
509 #endif
510 #ifndef elf_backend_copy_indirect_symbol
511 #define elf_backend_copy_indirect_symbol  _bfd_elf_link_hash_copy_indirect
512 #endif
513 #ifndef elf_backend_hide_symbol
514 #define elf_backend_hide_symbol         _bfd_elf_link_hash_hide_symbol
515 #endif
516 #ifndef elf_backend_fixup_symbol
517 #define elf_backend_fixup_symbol                NULL
518 #endif
519 #ifndef elf_backend_merge_symbol_attribute
520 #define elf_backend_merge_symbol_attribute      NULL
521 #endif
522 #ifndef elf_backend_get_target_dtag
523 #define elf_backend_get_target_dtag             NULL
524 #endif
525 #ifndef elf_backend_ignore_undef_symbol
526 #define elf_backend_ignore_undef_symbol         NULL
527 #endif
528 #ifndef elf_backend_emit_relocs
529 #define elf_backend_emit_relocs                 _bfd_elf_link_output_relocs
530 #endif
531 #ifndef elf_backend_count_relocs
532 #define elf_backend_count_relocs                NULL
533 #endif
534 #ifndef elf_backend_grok_prstatus
535 #define elf_backend_grok_prstatus               NULL
536 #endif
537 #ifndef elf_backend_grok_psinfo
538 #define elf_backend_grok_psinfo                 NULL
539 #endif
540 #ifndef elf_backend_write_core_note
541 #define elf_backend_write_core_note             NULL
542 #endif
543 #ifndef elf_backend_lookup_section_flags_hook
544 #define elf_backend_lookup_section_flags_hook   NULL
545 #endif
546 #ifndef elf_backend_reloc_type_class
547 #define elf_backend_reloc_type_class            _bfd_elf_reloc_type_class
548 #endif
549 #ifndef elf_backend_discard_info
550 #define elf_backend_discard_info                NULL
551 #endif
552 #ifndef elf_backend_ignore_discarded_relocs
553 #define elf_backend_ignore_discarded_relocs     NULL
554 #endif
555 #ifndef elf_backend_action_discarded
556 #define elf_backend_action_discarded _bfd_elf_default_action_discarded
557 #endif
558 #ifndef elf_backend_eh_frame_address_size
559 #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
560 #endif
561 #ifndef elf_backend_can_make_relative_eh_frame
562 #define elf_backend_can_make_relative_eh_frame  _bfd_elf_can_make_relative
563 #endif
564 #ifndef elf_backend_can_make_lsda_relative_eh_frame
565 #define elf_backend_can_make_lsda_relative_eh_frame     _bfd_elf_can_make_relative
566 #endif
567 #ifndef elf_backend_encode_eh_address
568 #define elf_backend_encode_eh_address           _bfd_elf_encode_eh_address
569 #endif
570 #ifndef elf_backend_write_section
571 #define elf_backend_write_section               NULL
572 #endif
573 #ifndef elf_backend_mips_irix_compat
574 #define elf_backend_mips_irix_compat            NULL
575 #endif
576 #ifndef elf_backend_mips_rtype_to_howto
577 #define elf_backend_mips_rtype_to_howto         NULL
578 #endif
579
580 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
581    sections, but not both.  They defined USE_REL to indicate SHT_REL
582    sections, and left it undefined to indicated SHT_RELA sections.
583    For backwards compatibility, we still support this usage.  */
584 #ifndef USE_REL
585 #define USE_REL 0
586 #endif
587
588 /* Use these in new code.  */
589 #ifndef elf_backend_may_use_rel_p
590 #define elf_backend_may_use_rel_p USE_REL
591 #endif
592 #ifndef elf_backend_may_use_rela_p
593 #define elf_backend_may_use_rela_p !USE_REL
594 #endif
595 #ifndef elf_backend_default_use_rela_p
596 #define elf_backend_default_use_rela_p !USE_REL
597 #endif
598 #ifndef elf_backend_rela_plts_and_copies_p
599 #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
600 #endif
601
602 #ifndef elf_backend_rela_normal
603 #define elf_backend_rela_normal 0
604 #endif
605
606 #ifndef elf_backend_plt_sym_val
607 #define elf_backend_plt_sym_val NULL
608 #endif
609 #ifndef elf_backend_relplt_name
610 #define elf_backend_relplt_name NULL
611 #endif
612
613 #ifndef ELF_MACHINE_ALT1
614 #define ELF_MACHINE_ALT1 0
615 #endif
616
617 #ifndef ELF_MACHINE_ALT2
618 #define ELF_MACHINE_ALT2 0
619 #endif
620
621 #ifndef elf_backend_size_info
622 #define elf_backend_size_info _bfd_elfNN_size_info
623 #endif
624
625 #ifndef elf_backend_special_sections
626 #define elf_backend_special_sections NULL
627 #endif
628
629 #ifndef elf_backend_sign_extend_vma
630 #define elf_backend_sign_extend_vma 0
631 #endif
632
633 #ifndef elf_backend_link_order_error_handler
634 #define elf_backend_link_order_error_handler _bfd_default_error_handler
635 #endif
636
637 #ifndef elf_backend_common_definition
638 #define elf_backend_common_definition _bfd_elf_common_definition
639 #endif
640
641 #ifndef elf_backend_common_section_index
642 #define elf_backend_common_section_index _bfd_elf_common_section_index
643 #endif
644
645 #ifndef elf_backend_common_section
646 #define elf_backend_common_section _bfd_elf_common_section
647 #endif
648
649 #ifndef elf_backend_merge_symbol
650 #define elf_backend_merge_symbol NULL
651 #endif
652
653 #ifndef elf_backend_hash_symbol
654 #define elf_backend_hash_symbol _bfd_elf_hash_symbol
655 #endif
656
657 #ifndef elf_backend_is_function_type
658 #define elf_backend_is_function_type _bfd_elf_is_function_type
659 #endif
660
661 #ifndef elf_backend_maybe_function_sym
662 #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
663 #endif
664
665 #ifndef elf_match_priority
666 #define elf_match_priority \
667   (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
668 #endif
669
670 extern const struct elf_size_info _bfd_elfNN_size_info;
671
672 static struct elf_backend_data elfNN_bed =
673 {
674   ELF_ARCH,                     /* arch */
675   ELF_TARGET_ID,                /* target_id */
676   ELF_MACHINE_CODE,             /* elf_machine_code */
677   ELF_OSABI,                    /* elf_osabi  */
678   ELF_MAXPAGESIZE,              /* maxpagesize */
679   ELF_MINPAGESIZE,              /* minpagesize */
680   ELF_COMMONPAGESIZE,           /* commonpagesize */
681   ELF_DYNAMIC_SEC_FLAGS,        /* dynamic_sec_flags */
682   elf_backend_arch_data,
683   elf_info_to_howto,
684   elf_info_to_howto_rel,
685   elf_backend_sym_is_global,
686   elf_backend_object_p,
687   elf_backend_symbol_processing,
688   elf_backend_symbol_table_processing,
689   elf_backend_get_symbol_type,
690   elf_backend_archive_symbol_lookup,
691   elf_backend_name_local_section_symbols,
692   elf_backend_section_processing,
693   elf_backend_section_from_shdr,
694   elf_backend_section_flags,
695   elf_backend_get_sec_type_attr,
696   elf_backend_section_from_phdr,
697   elf_backend_fake_sections,
698   elf_backend_section_from_bfd_section,
699   elf_backend_add_symbol_hook,
700   elf_backend_link_output_symbol_hook,
701   elf_backend_create_dynamic_sections,
702   elf_backend_omit_section_dynsym,
703   elf_backend_relocs_compatible,
704   elf_backend_check_relocs,
705   elf_backend_check_directives,
706   elf_backend_as_needed_cleanup,
707   elf_backend_adjust_dynamic_symbol,
708   elf_backend_always_size_sections,
709   elf_backend_size_dynamic_sections,
710   elf_backend_init_index_section,
711   elf_backend_relocate_section,
712   elf_backend_finish_dynamic_symbol,
713   elf_backend_finish_dynamic_sections,
714   elf_backend_begin_write_processing,
715   elf_backend_final_write_processing,
716   elf_backend_additional_program_headers,
717   elf_backend_modify_segment_map,
718   elf_backend_modify_program_headers,
719   elf_backend_gc_keep,
720   elf_backend_gc_mark_dynamic_ref,
721   elf_backend_gc_mark_hook,
722   elf_backend_gc_mark_extra_sections,
723   elf_backend_gc_sweep_hook,
724   elf_backend_post_process_headers,
725   elf_backend_print_symbol_all,
726   elf_backend_output_arch_local_syms,
727   elf_backend_output_arch_syms,
728   elf_backend_copy_indirect_symbol,
729   elf_backend_hide_symbol,
730   elf_backend_fixup_symbol,
731   elf_backend_merge_symbol_attribute,
732   elf_backend_get_target_dtag,
733   elf_backend_ignore_undef_symbol,
734   elf_backend_emit_relocs,
735   elf_backend_count_relocs,
736   elf_backend_grok_prstatus,
737   elf_backend_grok_psinfo,
738   elf_backend_write_core_note,
739   elf_backend_lookup_section_flags_hook,
740   elf_backend_reloc_type_class,
741   elf_backend_discard_info,
742   elf_backend_ignore_discarded_relocs,
743   elf_backend_action_discarded,
744   elf_backend_eh_frame_address_size,
745   elf_backend_can_make_relative_eh_frame,
746   elf_backend_can_make_lsda_relative_eh_frame,
747   elf_backend_encode_eh_address,
748   elf_backend_write_section,
749   elf_backend_mips_irix_compat,
750   elf_backend_mips_rtype_to_howto,
751   elf_backend_ecoff_debug_swap,
752   elf_backend_bfd_from_remote_memory,
753   elf_backend_plt_sym_val,
754   elf_backend_common_definition,
755   elf_backend_common_section_index,
756   elf_backend_common_section,
757   elf_backend_merge_symbol,
758   elf_backend_hash_symbol,
759   elf_backend_is_function_type,
760   elf_backend_maybe_function_sym,
761   elf_backend_link_order_error_handler,
762   elf_backend_relplt_name,
763   ELF_MACHINE_ALT1,
764   ELF_MACHINE_ALT2,
765   &elf_backend_size_info,
766   elf_backend_special_sections,
767   elf_backend_got_header_size,
768   elf_backend_got_elt_size,
769   elf_backend_obj_attrs_vendor,
770   elf_backend_obj_attrs_section,
771   elf_backend_obj_attrs_arg_type,
772   elf_backend_obj_attrs_section_type,
773   elf_backend_obj_attrs_order,
774   elf_backend_obj_attrs_handle_unknown,
775   elf_backend_static_tls_alignment,
776   elf_backend_stack_align,
777   elf_backend_collect,
778   elf_backend_type_change_ok,
779   elf_backend_may_use_rel_p,
780   elf_backend_may_use_rela_p,
781   elf_backend_default_use_rela_p,
782   elf_backend_rela_plts_and_copies_p,
783   elf_backend_rela_normal,
784   elf_backend_sign_extend_vma,
785   elf_backend_want_got_plt,
786   elf_backend_plt_readonly,
787   elf_backend_want_plt_sym,
788   elf_backend_plt_not_loaded,
789   elf_backend_plt_alignment,
790   elf_backend_can_gc_sections,
791   elf_backend_can_refcount,
792   elf_backend_want_got_sym,
793   elf_backend_want_dynbss,
794   elf_backend_want_p_paddr_set_to_zero,
795   elf_backend_default_execstack
796 };
797
798 /* Forward declaration for use when initialising alternative_target field.  */
799 #ifdef TARGET_LITTLE_SYM
800 extern const bfd_target TARGET_LITTLE_SYM;
801 #endif
802
803 #ifdef TARGET_BIG_SYM
804 const bfd_target TARGET_BIG_SYM =
805 {
806   /* name: identify kind of target */
807   TARGET_BIG_NAME,
808
809   /* flavour: general indication about file */
810   bfd_target_elf_flavour,
811
812   /* byteorder: data is big endian */
813   BFD_ENDIAN_BIG,
814
815   /* header_byteorder: header is also big endian */
816   BFD_ENDIAN_BIG,
817
818   /* object_flags: mask of all file flags */
819   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
820    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS),
821
822   /* section_flags: mask of all section flags */
823   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
824    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
825    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
826
827    /* leading_symbol_char: is the first char of a user symbol
828       predictable, and if so what is it */
829   elf_symbol_leading_char,
830
831   /* ar_pad_char: pad character for filenames within an archive header
832      FIXME:  this really has nothing to do with ELF, this is a characteristic
833      of the archiver and/or os and should be independently tunable */
834   '/',
835
836   /* ar_max_namelen: maximum number of characters in an archive header
837      FIXME:  this really has nothing to do with ELF, this is a characteristic
838      of the archiver and should be independently tunable.  The System V ABI,
839      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
840   15,
841
842   elf_match_priority,
843
844   /* Routines to byte-swap various sized integers from the data sections */
845   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
846     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
847     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
848
849   /* Routines to byte-swap various sized integers from the file headers */
850   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
851     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
852     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
853
854   /* bfd_check_format: check the format of a file being read */
855   { _bfd_dummy_target,          /* unknown format */
856     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
857     bfd_elfNN_archive_p,        /* an archive */
858     bfd_elfNN_core_file_p       /* a core file */
859   },
860
861   /* bfd_set_format: set the format of a file being written */
862   { bfd_false,
863     bfd_elfNN_mkobject,
864     bfd_elfNN_mkarchive,
865     bfd_elfNN_mkcorefile
866   },
867
868   /* bfd_write_contents: write cached information into a file being written */
869   { bfd_false,
870     bfd_elfNN_write_object_contents,
871     bfd_elfNN_write_archive_contents,
872     bfd_elfNN_write_corefile_contents,
873   },
874
875   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
876   BFD_JUMP_TABLE_COPY (bfd_elfNN),
877   BFD_JUMP_TABLE_CORE (bfd_elfNN),
878 #ifdef bfd_elfNN_archive_functions
879   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
880 #else
881   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
882 #endif
883   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
884   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
885   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
886   BFD_JUMP_TABLE_LINK (bfd_elfNN),
887   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
888
889   /* Alternative endian target.  */
890 #ifdef TARGET_LITTLE_SYM
891   & TARGET_LITTLE_SYM,
892 #else
893   NULL,
894 #endif
895
896   /* backend_data: */
897   &elfNN_bed
898 };
899 #endif
900
901 #ifdef TARGET_LITTLE_SYM
902 const bfd_target TARGET_LITTLE_SYM =
903 {
904   /* name: identify kind of target */
905   TARGET_LITTLE_NAME,
906
907   /* flavour: general indication about file */
908   bfd_target_elf_flavour,
909
910   /* byteorder: data is little endian */
911   BFD_ENDIAN_LITTLE,
912
913   /* header_byteorder: header is also little endian */
914   BFD_ENDIAN_LITTLE,
915
916   /* object_flags: mask of all file flags */
917   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
918    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS),
919
920   /* section_flags: mask of all section flags */
921   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
922    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
923    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
924
925    /* leading_symbol_char: is the first char of a user symbol
926       predictable, and if so what is it */
927   elf_symbol_leading_char,
928
929   /* ar_pad_char: pad character for filenames within an archive header
930      FIXME:  this really has nothing to do with ELF, this is a characteristic
931      of the archiver and/or os and should be independently tunable */
932   '/',
933
934   /* ar_max_namelen: maximum number of characters in an archive header
935      FIXME:  this really has nothing to do with ELF, this is a characteristic
936      of the archiver and should be independently tunable.  The System V ABI,
937      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
938   15,
939
940   elf_match_priority,
941
942   /* Routines to byte-swap various sized integers from the data sections */
943   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
944     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
945     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
946
947   /* Routines to byte-swap various sized integers from the file headers */
948   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
949     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
950     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
951
952   /* bfd_check_format: check the format of a file being read */
953   { _bfd_dummy_target,          /* unknown format */
954     bfd_elfNN_object_p,         /* assembler/linker output (object file) */
955     bfd_elfNN_archive_p,        /* an archive */
956     bfd_elfNN_core_file_p       /* a core file */
957   },
958
959   /* bfd_set_format: set the format of a file being written */
960   { bfd_false,
961     bfd_elfNN_mkobject,
962     bfd_elfNN_mkarchive,
963     bfd_elfNN_mkcorefile
964   },
965
966   /* bfd_write_contents: write cached information into a file being written */
967   { bfd_false,
968     bfd_elfNN_write_object_contents,
969     bfd_elfNN_write_archive_contents,
970     bfd_elfNN_write_corefile_contents,
971   },
972
973   BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
974   BFD_JUMP_TABLE_COPY (bfd_elfNN),
975   BFD_JUMP_TABLE_CORE (bfd_elfNN),
976 #ifdef bfd_elfNN_archive_functions
977   BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
978 #else
979   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
980 #endif
981   BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
982   BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
983   BFD_JUMP_TABLE_WRITE (bfd_elfNN),
984   BFD_JUMP_TABLE_LINK (bfd_elfNN),
985   BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
986
987   /* Alternative endian target.  */
988 #ifdef TARGET_BIG_SYM
989   & TARGET_BIG_SYM,
990 #else
991   NULL,
992 #endif
993
994   /* backend_data: */
995   &elfNN_bed
996 };
997 #endif