Initial revision
[binutils.git] / bfd / elfxx-target.h
blob9acabd1e6079b0156c518cba83f3ead5873ddcf5
1 /* Target definitions for NN-bit ELF
2 Copyright 1993, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
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 2 of the License, or
9 (at your option) any later version.
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.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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.
25 There are two such structures here: one for big-endian machines and
26 one for little-endian machines. */
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
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
62 #define bfd_elfNN_get_section_contents_in_window \
63 _bfd_generic_get_section_contents_in_window
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
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
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
93 #ifndef bfd_elfNN_bfd_relax_section
94 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
95 #endif
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
110 #define bfd_elfNN_bfd_make_debug_symbol \
111 ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
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
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
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
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
172 #ifndef bfd_elfNN_archive_p
173 #define bfd_elfNN_archive_p bfd_generic_archive_p
174 #endif
176 #ifndef bfd_elfNN_write_archive_contents
177 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
178 #endif
180 #ifndef bfd_elfNN_mkobject
181 #define bfd_elfNN_mkobject bfd_elf_mkobject
182 #endif
184 #ifndef bfd_elfNN_mkcorefile
185 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
186 #endif
188 #ifndef bfd_elfNN_mkarchive
189 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
190 #endif
192 #ifndef elf_symbol_leading_char
193 #define elf_symbol_leading_char 0
194 #endif
196 #ifndef elf_info_to_howto
197 #define elf_info_to_howto 0
198 #endif
200 #ifndef elf_info_to_howto_rel
201 #define elf_info_to_howto_rel 0
202 #endif
204 #ifndef ELF_MAXPAGESIZE
205 #define ELF_MAXPAGESIZE 1
206 #endif
208 #ifndef elf_backend_collect
209 #define elf_backend_collect false
210 #endif
211 #ifndef elf_backend_type_change_ok
212 #define elf_backend_type_change_ok false
213 #endif
215 #ifndef elf_backend_sym_is_global
216 #define elf_backend_sym_is_global 0
217 #endif
218 #ifndef elf_backend_object_p
219 #define elf_backend_object_p 0
220 #endif
221 #ifndef elf_backend_symbol_processing
222 #define elf_backend_symbol_processing 0
223 #endif
224 #ifndef elf_backend_symbol_table_processing
225 #define elf_backend_symbol_table_processing 0
226 #endif
227 #ifndef elf_backend_get_symbol_type
228 #define elf_backend_get_symbol_type 0
229 #endif
230 #ifndef elf_backend_section_processing
231 #define elf_backend_section_processing 0
232 #endif
233 #ifndef elf_backend_section_from_shdr
234 #define elf_backend_section_from_shdr 0
235 #endif
236 #ifndef elf_backend_fake_sections
237 #define elf_backend_fake_sections 0
238 #endif
239 #ifndef elf_backend_section_from_bfd_section
240 #define elf_backend_section_from_bfd_section 0
241 #endif
242 #ifndef elf_backend_add_symbol_hook
243 #define elf_backend_add_symbol_hook 0
244 #endif
245 #ifndef elf_backend_link_output_symbol_hook
246 #define elf_backend_link_output_symbol_hook 0
247 #endif
248 #ifndef elf_backend_create_dynamic_sections
249 #define elf_backend_create_dynamic_sections 0
250 #endif
251 #ifndef elf_backend_check_relocs
252 #define elf_backend_check_relocs 0
253 #endif
254 #ifndef elf_backend_adjust_dynamic_symbol
255 #define elf_backend_adjust_dynamic_symbol 0
256 #endif
257 #ifndef elf_backend_always_size_sections
258 #define elf_backend_always_size_sections 0
259 #endif
260 #ifndef elf_backend_size_dynamic_sections
261 #define elf_backend_size_dynamic_sections 0
262 #endif
263 #ifndef elf_backend_relocate_section
264 #define elf_backend_relocate_section 0
265 #endif
266 #ifndef elf_backend_finish_dynamic_symbol
267 #define elf_backend_finish_dynamic_symbol 0
268 #endif
269 #ifndef elf_backend_finish_dynamic_sections
270 #define elf_backend_finish_dynamic_sections 0
271 #endif
272 #ifndef elf_backend_begin_write_processing
273 #define elf_backend_begin_write_processing 0
274 #endif
275 #ifndef elf_backend_final_write_processing
276 #define elf_backend_final_write_processing 0
277 #endif
278 #ifndef elf_backend_additional_program_headers
279 #define elf_backend_additional_program_headers 0
280 #endif
281 #ifndef elf_backend_modify_segment_map
282 #define elf_backend_modify_segment_map 0
283 #endif
284 #ifndef elf_backend_ecoff_debug_swap
285 #define elf_backend_ecoff_debug_swap 0
286 #endif
287 #ifndef elf_backend_got_header_size
288 #define elf_backend_got_header_size 0
289 #endif
290 #ifndef elf_backend_plt_header_size
291 #define elf_backend_plt_header_size 0
292 #endif
294 #ifndef ELF_MACHINE_ALT1
295 #define ELF_MACHINE_ALT1 0
296 #endif
298 #ifndef ELF_MACHINE_ALT2
299 #define ELF_MACHINE_ALT2 0
300 #endif
302 #ifndef elf_backend_size_info
303 #define elf_backend_size_info _bfd_elfNN_size_info
304 #endif
306 extern const struct elf_size_info _bfd_elfNN_size_info;
308 static CONST struct elf_backend_data elfNN_bed =
310 #ifdef USE_REL
311 0, /* use_rela_p */
312 #else
313 1, /* use_rela_p */
314 #endif
315 ELF_ARCH, /* arch */
316 ELF_MACHINE_CODE, /* elf_machine_code */
317 ELF_MAXPAGESIZE, /* maxpagesize */
318 elf_backend_collect,
319 elf_backend_type_change_ok,
320 elf_info_to_howto,
321 elf_info_to_howto_rel,
322 elf_backend_sym_is_global,
323 elf_backend_object_p,
324 elf_backend_symbol_processing,
325 elf_backend_symbol_table_processing,
326 elf_backend_get_symbol_type,
327 elf_backend_section_processing,
328 elf_backend_section_from_shdr,
329 elf_backend_fake_sections,
330 elf_backend_section_from_bfd_section,
331 elf_backend_add_symbol_hook,
332 elf_backend_link_output_symbol_hook,
333 elf_backend_create_dynamic_sections,
334 elf_backend_check_relocs,
335 elf_backend_adjust_dynamic_symbol,
336 elf_backend_always_size_sections,
337 elf_backend_size_dynamic_sections,
338 elf_backend_relocate_section,
339 elf_backend_finish_dynamic_symbol,
340 elf_backend_finish_dynamic_sections,
341 elf_backend_begin_write_processing,
342 elf_backend_final_write_processing,
343 elf_backend_additional_program_headers,
344 elf_backend_modify_segment_map,
345 elf_backend_gc_mark_hook,
346 elf_backend_gc_sweep_hook,
347 elf_backend_ecoff_debug_swap,
348 ELF_MACHINE_ALT1,
349 ELF_MACHINE_ALT2,
350 &elf_backend_size_info,
351 elf_backend_got_symbol_offset,
352 elf_backend_got_header_size,
353 elf_backend_plt_header_size,
354 elf_backend_want_got_plt,
355 elf_backend_plt_readonly,
356 elf_backend_want_plt_sym,
357 elf_backend_plt_not_loaded,
358 elf_backend_plt_alignment,
359 elf_backend_can_gc_sections
362 #ifdef TARGET_BIG_SYM
363 const bfd_target TARGET_BIG_SYM =
365 /* name: identify kind of target */
366 TARGET_BIG_NAME,
368 /* flavour: general indication about file */
369 bfd_target_elf_flavour,
371 /* byteorder: data is big endian */
372 BFD_ENDIAN_BIG,
374 /* header_byteorder: header is also big endian */
375 BFD_ENDIAN_BIG,
377 /* object_flags: mask of all file flags */
378 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
379 DYNAMIC | WP_TEXT | D_PAGED),
381 /* section_flags: mask of all section flags */
382 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
383 SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES),
385 /* leading_symbol_char: is the first char of a user symbol
386 predictable, and if so what is it */
387 elf_symbol_leading_char,
389 /* ar_pad_char: pad character for filenames within an archive header
390 FIXME: this really has nothing to do with ELF, this is a characteristic
391 of the archiver and/or os and should be independently tunable */
392 '/',
394 /* ar_max_namelen: maximum number of characters in an archive header
395 FIXME: this really has nothing to do with ELF, this is a characteristic
396 of the archiver and should be independently tunable. This value is
397 a WAG (wild a** guess) */
400 /* Routines to byte-swap various sized integers from the data sections */
401 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
402 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
403 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
405 /* Routines to byte-swap various sized integers from the file headers */
406 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
407 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
408 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
410 /* bfd_check_format: check the format of a file being read */
411 { _bfd_dummy_target, /* unknown format */
412 bfd_elfNN_object_p, /* assembler/linker output (object file) */
413 bfd_elfNN_archive_p, /* an archive */
414 bfd_elfNN_core_file_p /* a core file */
417 /* bfd_set_format: set the format of a file being written */
418 { bfd_false,
419 bfd_elfNN_mkobject,
420 bfd_elfNN_mkarchive,
421 bfd_elfNN_mkcorefile
424 /* bfd_write_contents: write cached information into a file being written */
425 { bfd_false,
426 bfd_elfNN_write_object_contents,
427 bfd_elfNN_write_archive_contents,
428 bfd_elfNN_write_corefile_contents,
431 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
432 BFD_JUMP_TABLE_COPY (bfd_elfNN),
433 BFD_JUMP_TABLE_CORE (bfd_elfNN),
434 #ifdef bfd_elfNN_archive_functions
435 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
436 #else
437 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
438 #endif
439 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
440 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
441 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
442 BFD_JUMP_TABLE_LINK (bfd_elfNN),
443 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
445 /* backend_data: */
446 (PTR) &elfNN_bed,
448 #endif
450 #ifdef TARGET_LITTLE_SYM
451 const bfd_target TARGET_LITTLE_SYM =
453 /* name: identify kind of target */
454 TARGET_LITTLE_NAME,
456 /* flavour: general indication about file */
457 bfd_target_elf_flavour,
459 /* byteorder: data is little endian */
460 BFD_ENDIAN_LITTLE,
462 /* header_byteorder: header is also little endian */
463 BFD_ENDIAN_LITTLE,
465 /* object_flags: mask of all file flags */
466 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
467 DYNAMIC | WP_TEXT | D_PAGED),
469 /* section_flags: mask of all section flags */
470 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
471 SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES),
473 /* leading_symbol_char: is the first char of a user symbol
474 predictable, and if so what is it */
475 elf_symbol_leading_char,
477 /* ar_pad_char: pad character for filenames within an archive header
478 FIXME: this really has nothing to do with ELF, this is a characteristic
479 of the archiver and/or os and should be independently tunable */
480 '/',
482 /* ar_max_namelen: maximum number of characters in an archive header
483 FIXME: this really has nothing to do with ELF, this is a characteristic
484 of the archiver and should be independently tunable. This value is
485 a WAG (wild a** guess) */
488 /* Routines to byte-swap various sized integers from the data sections */
489 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
490 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
491 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
493 /* Routines to byte-swap various sized integers from the file headers */
494 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
495 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
496 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
498 /* bfd_check_format: check the format of a file being read */
499 { _bfd_dummy_target, /* unknown format */
500 bfd_elfNN_object_p, /* assembler/linker output (object file) */
501 bfd_elfNN_archive_p, /* an archive */
502 bfd_elfNN_core_file_p /* a core file */
505 /* bfd_set_format: set the format of a file being written */
506 { bfd_false,
507 bfd_elfNN_mkobject,
508 bfd_elfNN_mkarchive,
509 bfd_elfNN_mkcorefile
512 /* bfd_write_contents: write cached information into a file being written */
513 { bfd_false,
514 bfd_elfNN_write_object_contents,
515 bfd_elfNN_write_archive_contents,
516 bfd_elfNN_write_corefile_contents,
519 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
520 BFD_JUMP_TABLE_COPY (bfd_elfNN),
521 BFD_JUMP_TABLE_CORE (bfd_elfNN),
522 #ifdef bfd_elfNN_archive_functions
523 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
524 #else
525 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
526 #endif
527 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
528 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
529 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
530 BFD_JUMP_TABLE_LINK (bfd_elfNN),
531 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
533 /* backend_data: */
534 (PTR) &elfNN_bed,
536 #endif