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Define ELF_MAXPAGESIZE for all ELF based ports.
[deliverable/binutils-gdb.git] / bfd / elfxx-target.h
CommitLineData
252b5132
RH		 1/* Target definitions for NN-bit ELF
2 Copyright 1993, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
3
4This file is part of BFD, the Binary File Descriptor library.
5
6This program is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2 of the License, or
9(at your option) any later version.
10
11This program is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with this program; if not, write to the Free Software
18Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19
20/* This structure contains everything that BFD knows about a target.
21 It includes things like its byte order, name, what routines to call
22 to do various operations, etc. Every BFD points to a target structure
23 with its "xvec" member.
24
25 There are two such structures here: one for big-endian machines and
26 one for little-endian machines. */
27
28#define bfd_elfNN_close_and_cleanup _bfd_elf_close_and_cleanup
29#define bfd_elfNN_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
30#ifndef bfd_elfNN_get_section_contents
31#define bfd_elfNN_get_section_contents _bfd_generic_get_section_contents
32#endif
33
34#define bfd_elfNN_canonicalize_dynamic_symtab _bfd_elf_canonicalize_dynamic_symtab
35#define bfd_elfNN_canonicalize_reloc _bfd_elf_canonicalize_reloc
36#ifndef bfd_elfNN_find_nearest_line
37#define bfd_elfNN_find_nearest_line _bfd_elf_find_nearest_line
38#endif
39#define bfd_elfNN_read_minisymbols _bfd_elf_read_minisymbols
40#define bfd_elfNN_minisymbol_to_symbol _bfd_elf_minisymbol_to_symbol
41#define bfd_elfNN_get_dynamic_symtab_upper_bound _bfd_elf_get_dynamic_symtab_upper_bound
42#define bfd_elfNN_get_lineno _bfd_elf_get_lineno
43#ifndef bfd_elfNN_get_reloc_upper_bound
44#define bfd_elfNN_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound
45#endif
46#define bfd_elfNN_get_symbol_info _bfd_elf_get_symbol_info
47#define bfd_elfNN_get_symtab _bfd_elf_get_symtab
48#define bfd_elfNN_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound
49#if 0 /* done in elf-bfd.h */
50#define bfd_elfNN_link_record_dynamic_symbol _bfd_elf_link_record_dynamic_symbol
51#endif
52#define bfd_elfNN_make_empty_symbol _bfd_elf_make_empty_symbol
53#define bfd_elfNN_new_section_hook _bfd_elf_new_section_hook
54#define bfd_elfNN_set_arch_mach _bfd_elf_set_arch_mach
55#ifndef bfd_elfNN_set_section_contents
56#define bfd_elfNN_set_section_contents _bfd_elf_set_section_contents
57#endif
58#define bfd_elfNN_sizeof_headers _bfd_elf_sizeof_headers
59#define bfd_elfNN_write_object_contents _bfd_elf_write_object_contents
60#define bfd_elfNN_write_corefile_contents _bfd_elf_write_corefile_contents
61
62#define bfd_elfNN_get_section_contents_in_window \
63 _bfd_generic_get_section_contents_in_window
64
65#ifndef elf_backend_got_symbol_offset
66#define elf_backend_got_symbol_offset (bfd_vma) 0
67#endif
68#ifndef elf_backend_want_got_plt
69#define elf_backend_want_got_plt 0
70#endif
71#ifndef elf_backend_plt_readonly
72#define elf_backend_plt_readonly 0
73#endif
74#ifndef elf_backend_want_plt_sym
75#define elf_backend_want_plt_sym 0
76#endif
77#ifndef elf_backend_plt_not_loaded
78#define elf_backend_plt_not_loaded 0
79#endif
80#ifndef elf_backend_plt_alignment
81#define elf_backend_plt_alignment 2
82#endif
83
84#define bfd_elfNN_bfd_debug_info_start bfd_void
85#define bfd_elfNN_bfd_debug_info_end bfd_void
86#define bfd_elfNN_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
87
88#ifndef bfd_elfNN_bfd_get_relocated_section_contents
89#define bfd_elfNN_bfd_get_relocated_section_contents \
90 bfd_generic_get_relocated_section_contents
91#endif
92
93#ifndef bfd_elfNN_bfd_relax_section
94#define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
95#endif
96
97#ifndef elf_backend_can_gc_sections
98#define elf_backend_can_gc_sections 0
99#endif
100#ifndef elf_backend_gc_mark_hook
101#define elf_backend_gc_mark_hook NULL
102#endif
103#ifndef elf_backend_gc_sweep_hook
104#define elf_backend_gc_sweep_hook NULL
105#endif
106#ifndef bfd_elfNN_bfd_gc_sections
107#define bfd_elfNN_bfd_gc_sections _bfd_elfNN_gc_sections
108#endif
109
110#define bfd_elfNN_bfd_make_debug_symbol \
111 ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
112
113#ifndef bfd_elfNN_bfd_copy_private_symbol_data
114#define bfd_elfNN_bfd_copy_private_symbol_data \
115 _bfd_elf_copy_private_symbol_data
116#endif
117
118#ifndef bfd_elfNN_bfd_copy_private_section_data
119#define bfd_elfNN_bfd_copy_private_section_data \
120 _bfd_elf_copy_private_section_data
121#endif
122#ifndef bfd_elfNN_bfd_copy_private_bfd_data
123#define bfd_elfNN_bfd_copy_private_bfd_data \
124 ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
125#endif
126#ifndef bfd_elfNN_bfd_print_private_bfd_data
127#define bfd_elfNN_bfd_print_private_bfd_data \
128 _bfd_elf_print_private_bfd_data
129#endif
130#ifndef bfd_elfNN_bfd_merge_private_bfd_data
131#define bfd_elfNN_bfd_merge_private_bfd_data \
132 ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
133#endif
134#ifndef bfd_elfNN_bfd_set_private_flags
135#define bfd_elfNN_bfd_set_private_flags \
136 ((boolean (*) PARAMS ((bfd *, flagword))) bfd_true)
137#endif
138#ifndef bfd_elfNN_bfd_is_local_label_name
139#define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
140#endif
141
142#ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
143#define bfd_elfNN_get_dynamic_reloc_upper_bound \
144 _bfd_elf_get_dynamic_reloc_upper_bound
145#endif
146#ifndef bfd_elfNN_canonicalize_dynamic_reloc
147#define bfd_elfNN_canonicalize_dynamic_reloc \
148 _bfd_elf_canonicalize_dynamic_reloc
149#endif
150
151#ifdef elf_backend_relocate_section
152#ifndef bfd_elfNN_bfd_link_hash_table_create
153#define bfd_elfNN_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
154#endif
155#else /* ! defined (elf_backend_relocate_section) */
156/* If no backend relocate_section routine, use the generic linker. */
157#ifndef bfd_elfNN_bfd_link_hash_table_create
158#define bfd_elfNN_bfd_link_hash_table_create \
159 _bfd_generic_link_hash_table_create
160#endif
161#ifndef bfd_elfNN_bfd_link_add_symbols
162#define bfd_elfNN_bfd_link_add_symbols _bfd_generic_link_add_symbols
163#endif
164#ifndef bfd_elfNN_bfd_final_link
165#define bfd_elfNN_bfd_final_link _bfd_generic_final_link
166#endif
167#endif /* ! defined (elf_backend_relocate_section) */
168#ifndef bfd_elfNN_bfd_link_split_section
169#define bfd_elfNN_bfd_link_split_section _bfd_generic_link_split_section
170#endif
171
172#ifndef bfd_elfNN_archive_p
173#define bfd_elfNN_archive_p bfd_generic_archive_p
174#endif
175
176#ifndef bfd_elfNN_write_archive_contents
177#define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
178#endif
179
180#ifndef bfd_elfNN_mkobject
181#define bfd_elfNN_mkobject bfd_elf_mkobject
182#endif
183
184#ifndef bfd_elfNN_mkcorefile
185#define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
186#endif
187
188#ifndef bfd_elfNN_mkarchive
189#define bfd_elfNN_mkarchive _bfd_generic_mkarchive
190#endif
191
192#ifndef elf_symbol_leading_char
193#define elf_symbol_leading_char 0
194#endif
195
196#ifndef elf_info_to_howto
197#define elf_info_to_howto 0
198#endif
199
200#ifndef elf_info_to_howto_rel
201#define elf_info_to_howto_rel 0
202#endif
203
204#ifndef ELF_MAXPAGESIZE
79e5982f
NC		 205 #error ELF_MAXPAGESIZE is not defined
206#define ELF_MAXPAGESIZE 1
252b5132
RH		 207#endif
208
209#ifndef elf_backend_collect
210#define elf_backend_collect false
211#endif
212#ifndef elf_backend_type_change_ok
213#define elf_backend_type_change_ok false
214#endif
215
216#ifndef elf_backend_sym_is_global
217#define elf_backend_sym_is_global 0
218#endif
219#ifndef elf_backend_object_p
220#define elf_backend_object_p 0
221#endif
222#ifndef elf_backend_symbol_processing
223#define elf_backend_symbol_processing 0
224#endif
225#ifndef elf_backend_symbol_table_processing
226#define elf_backend_symbol_table_processing 0
227#endif
228#ifndef elf_backend_get_symbol_type
229#define elf_backend_get_symbol_type 0
230#endif
231#ifndef elf_backend_section_processing
232#define elf_backend_section_processing 0
233#endif
234#ifndef elf_backend_section_from_shdr
235#define elf_backend_section_from_shdr 0
236#endif
237#ifndef elf_backend_fake_sections
238#define elf_backend_fake_sections 0
239#endif
240#ifndef elf_backend_section_from_bfd_section
241#define elf_backend_section_from_bfd_section 0
242#endif
243#ifndef elf_backend_add_symbol_hook
244#define elf_backend_add_symbol_hook 0
245#endif
246#ifndef elf_backend_link_output_symbol_hook
247#define elf_backend_link_output_symbol_hook 0
248#endif
249#ifndef elf_backend_create_dynamic_sections
250#define elf_backend_create_dynamic_sections 0
251#endif
252#ifndef elf_backend_check_relocs
253#define elf_backend_check_relocs 0
254#endif
255#ifndef elf_backend_adjust_dynamic_symbol
256#define elf_backend_adjust_dynamic_symbol 0
257#endif
258#ifndef elf_backend_always_size_sections
259#define elf_backend_always_size_sections 0
260#endif
261#ifndef elf_backend_size_dynamic_sections
262#define elf_backend_size_dynamic_sections 0
263#endif
264#ifndef elf_backend_relocate_section
265#define elf_backend_relocate_section 0
266#endif
267#ifndef elf_backend_finish_dynamic_symbol
268#define elf_backend_finish_dynamic_symbol 0
269#endif
270#ifndef elf_backend_finish_dynamic_sections
271#define elf_backend_finish_dynamic_sections 0
272#endif
273#ifndef elf_backend_begin_write_processing
274#define elf_backend_begin_write_processing 0
275#endif
276#ifndef elf_backend_final_write_processing
277#define elf_backend_final_write_processing 0
278#endif
279#ifndef elf_backend_additional_program_headers
280#define elf_backend_additional_program_headers 0
281#endif
282#ifndef elf_backend_modify_segment_map
283#define elf_backend_modify_segment_map 0
284#endif
285#ifndef elf_backend_ecoff_debug_swap
286#define elf_backend_ecoff_debug_swap 0
287#endif
288#ifndef elf_backend_got_header_size
289#define elf_backend_got_header_size 0
290#endif
291#ifndef elf_backend_plt_header_size
292#define elf_backend_plt_header_size 0
293#endif
e6c51ed4
NC		 294#ifndef elf_backend_post_process_headers
295#define elf_backend_post_process_headers NULL
296#endif
252b5132 297
bf572ba0
MM		 298/* Previously, backends could only use SHT_REL or SHT_RELA relocation
299 sections, but not both. They defined USE_REL to indicate SHT_REL
300 sections, and left it undefined to indicated SHT_RELA sections.
301 For backwards compatibility, we still support this usage. */
302#ifndef USE_REL
303#define USE_REL 0
304#else
305#undef USE_REL
306#define USE_REL 1
307#endif
308
309/* Use these in new code. */
310#ifndef elf_backend_may_use_rel_p
311#define elf_backend_may_use_rel_p USE_REL
312#endif
313#ifndef elf_backend_may_use_rela_p
314#define elf_backend_may_use_rela_p !USE_REL
315#endif
316#ifndef elf_backend_default_use_rela_p
317#define elf_backend_default_use_rela_p !USE_REL
318#endif
319
252b5132
RH		 320#ifndef ELF_MACHINE_ALT1
321#define ELF_MACHINE_ALT1 0
322#endif
323
324#ifndef ELF_MACHINE_ALT2
325#define ELF_MACHINE_ALT2 0
326#endif
327
328#ifndef elf_backend_size_info
329#define elf_backend_size_info _bfd_elfNN_size_info
330#endif
331
332extern const struct elf_size_info _bfd_elfNN_size_info;
333
334static CONST struct elf_backend_data elfNN_bed =
335{
252b5132
RH		 336 ELF_ARCH, /* arch */
337 ELF_MACHINE_CODE, /* elf_machine_code */
338 ELF_MAXPAGESIZE, /* maxpagesize */
339 elf_backend_collect,
340 elf_backend_type_change_ok,
341 elf_info_to_howto,
342 elf_info_to_howto_rel,
343 elf_backend_sym_is_global,
344 elf_backend_object_p,
345 elf_backend_symbol_processing,
346 elf_backend_symbol_table_processing,
347 elf_backend_get_symbol_type,
348 elf_backend_section_processing,
349 elf_backend_section_from_shdr,
350 elf_backend_fake_sections,
351 elf_backend_section_from_bfd_section,
352 elf_backend_add_symbol_hook,
353 elf_backend_link_output_symbol_hook,
354 elf_backend_create_dynamic_sections,
355 elf_backend_check_relocs,
356 elf_backend_adjust_dynamic_symbol,
357 elf_backend_always_size_sections,
358 elf_backend_size_dynamic_sections,
359 elf_backend_relocate_section,
360 elf_backend_finish_dynamic_symbol,
361 elf_backend_finish_dynamic_sections,
362 elf_backend_begin_write_processing,
363 elf_backend_final_write_processing,
364 elf_backend_additional_program_headers,
365 elf_backend_modify_segment_map,
366 elf_backend_gc_mark_hook,
367 elf_backend_gc_sweep_hook,
e6c51ed4 368 elf_backend_post_process_headers,
252b5132
RH		 369 elf_backend_ecoff_debug_swap,
370 ELF_MACHINE_ALT1,
371 ELF_MACHINE_ALT2,
372 &elf_backend_size_info,
373 elf_backend_got_symbol_offset,
374 elf_backend_got_header_size,
375 elf_backend_plt_header_size,
bf572ba0
MM		 376 elf_backend_may_use_rel_p,
377 elf_backend_may_use_rela_p,
378 elf_backend_default_use_rela_p,
252b5132
RH		 379 elf_backend_want_got_plt,
380 elf_backend_plt_readonly,
381 elf_backend_want_plt_sym,
382 elf_backend_plt_not_loaded,
383 elf_backend_plt_alignment,
384 elf_backend_can_gc_sections
385};
386
387#ifdef TARGET_BIG_SYM
388const bfd_target TARGET_BIG_SYM =
389{
390 /* name: identify kind of target */
391 TARGET_BIG_NAME,
392
393 /* flavour: general indication about file */
394 bfd_target_elf_flavour,
395
396 /* byteorder: data is big endian */
397 BFD_ENDIAN_BIG,
398
399 /* header_byteorder: header is also big endian */
400 BFD_ENDIAN_BIG,
401
402 /* object_flags: mask of all file flags */
403 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
404 DYNAMIC | WP_TEXT | D_PAGED),
405
406 /* section_flags: mask of all section flags */
407 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
408 SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES),
409
410 /* leading_symbol_char: is the first char of a user symbol
411 predictable, and if so what is it */
412 elf_symbol_leading_char,
413
414 /* ar_pad_char: pad character for filenames within an archive header
415 FIXME: this really has nothing to do with ELF, this is a characteristic
416 of the archiver and/or os and should be independently tunable */
417 '/',
418
419 /* ar_max_namelen: maximum number of characters in an archive header
420 FIXME: this really has nothing to do with ELF, this is a characteristic
421 of the archiver and should be independently tunable. This value is
422 a WAG (wild a** guess) */
423 14,
424
425 /* Routines to byte-swap various sized integers from the data sections */
426 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
427 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
428 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
429
430 /* Routines to byte-swap various sized integers from the file headers */
431 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
432 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
433 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
434
435 /* bfd_check_format: check the format of a file being read */
436 { _bfd_dummy_target, /* unknown format */
437 bfd_elfNN_object_p, /* assembler/linker output (object file) */
438 bfd_elfNN_archive_p, /* an archive */
439 bfd_elfNN_core_file_p /* a core file */
440 },
441
442 /* bfd_set_format: set the format of a file being written */
443 { bfd_false,
444 bfd_elfNN_mkobject,
445 bfd_elfNN_mkarchive,
446 bfd_elfNN_mkcorefile
447 },
448
449 /* bfd_write_contents: write cached information into a file being written */
450 { bfd_false,
451 bfd_elfNN_write_object_contents,
452 bfd_elfNN_write_archive_contents,
453 bfd_elfNN_write_corefile_contents,
454 },
455
456 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
457 BFD_JUMP_TABLE_COPY (bfd_elfNN),
458 BFD_JUMP_TABLE_CORE (bfd_elfNN),
459#ifdef bfd_elfNN_archive_functions
460 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
461#else
462 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
463#endif
464 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
465 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
466 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
467 BFD_JUMP_TABLE_LINK (bfd_elfNN),
468 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
469
470 /* backend_data: */
471 (PTR) &elfNN_bed,
472};
473#endif
474
475#ifdef TARGET_LITTLE_SYM
476const bfd_target TARGET_LITTLE_SYM =
477{
478 /* name: identify kind of target */
479 TARGET_LITTLE_NAME,
480
481 /* flavour: general indication about file */
482 bfd_target_elf_flavour,
483
484 /* byteorder: data is little endian */
485 BFD_ENDIAN_LITTLE,
486
487 /* header_byteorder: header is also little endian */
488 BFD_ENDIAN_LITTLE,
489
490 /* object_flags: mask of all file flags */
491 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
492 DYNAMIC | WP_TEXT | D_PAGED),
493
494 /* section_flags: mask of all section flags */
495 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
496 SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES),
497
498 /* leading_symbol_char: is the first char of a user symbol
499 predictable, and if so what is it */
500 elf_symbol_leading_char,
501
502 /* ar_pad_char: pad character for filenames within an archive header
503 FIXME: this really has nothing to do with ELF, this is a characteristic
504 of the archiver and/or os and should be independently tunable */
505 '/',
506
507 /* ar_max_namelen: maximum number of characters in an archive header
508 FIXME: this really has nothing to do with ELF, this is a characteristic
509 of the archiver and should be independently tunable. This value is
510 a WAG (wild a** guess) */
511 14,
512
513 /* Routines to byte-swap various sized integers from the data sections */
514 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
515 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
516 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
517
518 /* Routines to byte-swap various sized integers from the file headers */
519 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
520 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
521 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
522
523 /* bfd_check_format: check the format of a file being read */
524 { _bfd_dummy_target, /* unknown format */
525 bfd_elfNN_object_p, /* assembler/linker output (object file) */
526 bfd_elfNN_archive_p, /* an archive */
527 bfd_elfNN_core_file_p /* a core file */
528 },
529
530 /* bfd_set_format: set the format of a file being written */
531 { bfd_false,
532 bfd_elfNN_mkobject,
533 bfd_elfNN_mkarchive,
534 bfd_elfNN_mkcorefile
535 },
536
537 /* bfd_write_contents: write cached information into a file being written */
538 { bfd_false,
539 bfd_elfNN_write_object_contents,
540 bfd_elfNN_write_archive_contents,
541 bfd_elfNN_write_corefile_contents,
542 },
543
544 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
545 BFD_JUMP_TABLE_COPY (bfd_elfNN),
546 BFD_JUMP_TABLE_CORE (bfd_elfNN),
547#ifdef bfd_elfNN_archive_functions
548 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
549#else
550 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
551#endif
552 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
553 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
554 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
555 BFD_JUMP_TABLE_LINK (bfd_elfNN),
556 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
557
558 /* backend_data: */
559 (PTR) &elfNN_bed,
560};
561#endif
GDB Binutils - Deliverables
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