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
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
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
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
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
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
68 #ifndef elf_backend_want_got_plt
69 #define elf_backend_want_got_plt 0
71 #ifndef elf_backend_plt_readonly
72 #define elf_backend_plt_readonly 0
74 #ifndef elf_backend_want_plt_sym
75 #define elf_backend_want_plt_sym 0
77 #ifndef elf_backend_plt_not_loaded
78 #define elf_backend_plt_not_loaded 0
80 #ifndef elf_backend_plt_alignment
81 #define elf_backend_plt_alignment 2
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
93 #ifndef bfd_elfNN_bfd_relax_section
94 #define bfd_elfNN_bfd_relax_section bfd_generic_relax_section
97 #ifndef elf_backend_can_gc_sections
98 #define elf_backend_can_gc_sections 0
100 #ifndef elf_backend_gc_mark_hook
101 #define elf_backend_gc_mark_hook NULL
103 #ifndef elf_backend_gc_sweep_hook
104 #define elf_backend_gc_sweep_hook NULL
106 #ifndef bfd_elfNN_bfd_gc_sections
107 #define bfd_elfNN_bfd_gc_sections _bfd_elfNN_gc_sections
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
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
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)
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
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)
134 #ifndef bfd_elfNN_bfd_set_private_flags
135 #define bfd_elfNN_bfd_set_private_flags \
136 ((boolean (*) PARAMS ((bfd *, flagword))) bfd_true)
138 #ifndef bfd_elfNN_bfd_is_local_label_name
139 #define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
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
146 #ifndef bfd_elfNN_canonicalize_dynamic_reloc
147 #define bfd_elfNN_canonicalize_dynamic_reloc \
148 _bfd_elf_canonicalize_dynamic_reloc
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
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
161 #ifndef bfd_elfNN_bfd_link_add_symbols
162 #define bfd_elfNN_bfd_link_add_symbols _bfd_generic_link_add_symbols
164 #ifndef bfd_elfNN_bfd_final_link
165 #define bfd_elfNN_bfd_final_link _bfd_generic_final_link
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
172 #ifndef bfd_elfNN_archive_p
173 #define bfd_elfNN_archive_p bfd_generic_archive_p
176 #ifndef bfd_elfNN_write_archive_contents
177 #define bfd_elfNN_write_archive_contents _bfd_write_archive_contents
180 #ifndef bfd_elfNN_mkobject
181 #define bfd_elfNN_mkobject bfd_elf_mkobject
184 #ifndef bfd_elfNN_mkcorefile
185 #define bfd_elfNN_mkcorefile bfd_elf_mkcorefile
188 #ifndef bfd_elfNN_mkarchive
189 #define bfd_elfNN_mkarchive _bfd_generic_mkarchive
192 #ifndef elf_symbol_leading_char
193 #define elf_symbol_leading_char 0
196 #ifndef elf_info_to_howto
197 #define elf_info_to_howto 0
200 #ifndef elf_info_to_howto_rel
201 #define elf_info_to_howto_rel 0
204 #ifndef ELF_MAXPAGESIZE
205 #define ELF_MAXPAGESIZE 1
208 #ifndef elf_backend_collect
209 #define elf_backend_collect false
211 #ifndef elf_backend_type_change_ok
212 #define elf_backend_type_change_ok false
215 #ifndef elf_backend_sym_is_global
216 #define elf_backend_sym_is_global 0
218 #ifndef elf_backend_object_p
219 #define elf_backend_object_p 0
221 #ifndef elf_backend_symbol_processing
222 #define elf_backend_symbol_processing 0
224 #ifndef elf_backend_symbol_table_processing
225 #define elf_backend_symbol_table_processing 0
227 #ifndef elf_backend_get_symbol_type
228 #define elf_backend_get_symbol_type 0
230 #ifndef elf_backend_section_processing
231 #define elf_backend_section_processing 0
233 #ifndef elf_backend_section_from_shdr
234 #define elf_backend_section_from_shdr 0
236 #ifndef elf_backend_fake_sections
237 #define elf_backend_fake_sections 0
239 #ifndef elf_backend_section_from_bfd_section
240 #define elf_backend_section_from_bfd_section 0
242 #ifndef elf_backend_add_symbol_hook
243 #define elf_backend_add_symbol_hook 0
245 #ifndef elf_backend_link_output_symbol_hook
246 #define elf_backend_link_output_symbol_hook 0
248 #ifndef elf_backend_create_dynamic_sections
249 #define elf_backend_create_dynamic_sections 0
251 #ifndef elf_backend_check_relocs
252 #define elf_backend_check_relocs 0
254 #ifndef elf_backend_adjust_dynamic_symbol
255 #define elf_backend_adjust_dynamic_symbol 0
257 #ifndef elf_backend_always_size_sections
258 #define elf_backend_always_size_sections 0
260 #ifndef elf_backend_size_dynamic_sections
261 #define elf_backend_size_dynamic_sections 0
263 #ifndef elf_backend_relocate_section
264 #define elf_backend_relocate_section 0
266 #ifndef elf_backend_finish_dynamic_symbol
267 #define elf_backend_finish_dynamic_symbol 0
269 #ifndef elf_backend_finish_dynamic_sections
270 #define elf_backend_finish_dynamic_sections 0
272 #ifndef elf_backend_begin_write_processing
273 #define elf_backend_begin_write_processing 0
275 #ifndef elf_backend_final_write_processing
276 #define elf_backend_final_write_processing 0
278 #ifndef elf_backend_additional_program_headers
279 #define elf_backend_additional_program_headers 0
281 #ifndef elf_backend_modify_segment_map
282 #define elf_backend_modify_segment_map 0
284 #ifndef elf_backend_ecoff_debug_swap
285 #define elf_backend_ecoff_debug_swap 0
287 #ifndef elf_backend_got_header_size
288 #define elf_backend_got_header_size 0
290 #ifndef elf_backend_plt_header_size
291 #define elf_backend_plt_header_size 0
293 #ifndef elf_backend_post_process_headers
294 #define elf_backend_post_process_headers NULL
297 #ifndef ELF_MACHINE_ALT1
298 #define ELF_MACHINE_ALT1 0
301 #ifndef ELF_MACHINE_ALT2
302 #define ELF_MACHINE_ALT2 0
305 #ifndef elf_backend_size_info
306 #define elf_backend_size_info _bfd_elfNN_size_info
309 extern const struct elf_size_info _bfd_elfNN_size_info;
311 static CONST struct elf_backend_data elfNN_bed =
319 ELF_MACHINE_CODE, /* elf_machine_code */
320 ELF_MAXPAGESIZE, /* maxpagesize */
322 elf_backend_type_change_ok,
324 elf_info_to_howto_rel,
325 elf_backend_sym_is_global,
326 elf_backend_object_p,
327 elf_backend_symbol_processing,
328 elf_backend_symbol_table_processing,
329 elf_backend_get_symbol_type,
330 elf_backend_section_processing,
331 elf_backend_section_from_shdr,
332 elf_backend_fake_sections,
333 elf_backend_section_from_bfd_section,
334 elf_backend_add_symbol_hook,
335 elf_backend_link_output_symbol_hook,
336 elf_backend_create_dynamic_sections,
337 elf_backend_check_relocs,
338 elf_backend_adjust_dynamic_symbol,
339 elf_backend_always_size_sections,
340 elf_backend_size_dynamic_sections,
341 elf_backend_relocate_section,
342 elf_backend_finish_dynamic_symbol,
343 elf_backend_finish_dynamic_sections,
344 elf_backend_begin_write_processing,
345 elf_backend_final_write_processing,
346 elf_backend_additional_program_headers,
347 elf_backend_modify_segment_map,
348 elf_backend_gc_mark_hook,
349 elf_backend_gc_sweep_hook,
350 elf_backend_post_process_headers,
351 elf_backend_ecoff_debug_swap,
354 &elf_backend_size_info,
355 elf_backend_got_symbol_offset,
356 elf_backend_got_header_size,
357 elf_backend_plt_header_size,
358 elf_backend_want_got_plt,
359 elf_backend_plt_readonly,
360 elf_backend_want_plt_sym,
361 elf_backend_plt_not_loaded,
362 elf_backend_plt_alignment,
363 elf_backend_can_gc_sections
366 #ifdef TARGET_BIG_SYM
367 const bfd_target TARGET_BIG_SYM =
369 /* name: identify kind of target */
372 /* flavour: general indication about file */
373 bfd_target_elf_flavour,
375 /* byteorder: data is big endian */
378 /* header_byteorder: header is also big endian */
381 /* object_flags: mask of all file flags */
382 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
383 DYNAMIC | WP_TEXT | D_PAGED),
385 /* section_flags: mask of all section flags */
386 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
387 SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES),
389 /* leading_symbol_char: is the first char of a user symbol
390 predictable, and if so what is it */
391 elf_symbol_leading_char,
393 /* ar_pad_char: pad character for filenames within an archive header
394 FIXME: this really has nothing to do with ELF, this is a characteristic
395 of the archiver and/or os and should be independently tunable */
398 /* ar_max_namelen: maximum number of characters in an archive header
399 FIXME: this really has nothing to do with ELF, this is a characteristic
400 of the archiver and should be independently tunable. This value is
401 a WAG (wild a** guess) */
404 /* Routines to byte-swap various sized integers from the data sections */
405 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
406 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
407 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
409 /* Routines to byte-swap various sized integers from the file headers */
410 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
411 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
412 bfd_getb16, bfd_getb_signed_16, bfd_putb16,
414 /* bfd_check_format: check the format of a file being read */
415 { _bfd_dummy_target, /* unknown format */
416 bfd_elfNN_object_p, /* assembler/linker output (object file) */
417 bfd_elfNN_archive_p, /* an archive */
418 bfd_elfNN_core_file_p /* a core file */
421 /* bfd_set_format: set the format of a file being written */
428 /* bfd_write_contents: write cached information into a file being written */
430 bfd_elfNN_write_object_contents,
431 bfd_elfNN_write_archive_contents,
432 bfd_elfNN_write_corefile_contents,
435 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
436 BFD_JUMP_TABLE_COPY (bfd_elfNN),
437 BFD_JUMP_TABLE_CORE (bfd_elfNN),
438 #ifdef bfd_elfNN_archive_functions
439 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
441 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
443 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
444 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
445 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
446 BFD_JUMP_TABLE_LINK (bfd_elfNN),
447 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),
454 #ifdef TARGET_LITTLE_SYM
455 const bfd_target TARGET_LITTLE_SYM =
457 /* name: identify kind of target */
460 /* flavour: general indication about file */
461 bfd_target_elf_flavour,
463 /* byteorder: data is little endian */
466 /* header_byteorder: header is also little endian */
469 /* object_flags: mask of all file flags */
470 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
471 DYNAMIC | WP_TEXT | D_PAGED),
473 /* section_flags: mask of all section flags */
474 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
475 SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES),
477 /* leading_symbol_char: is the first char of a user symbol
478 predictable, and if so what is it */
479 elf_symbol_leading_char,
481 /* ar_pad_char: pad character for filenames within an archive header
482 FIXME: this really has nothing to do with ELF, this is a characteristic
483 of the archiver and/or os and should be independently tunable */
486 /* ar_max_namelen: maximum number of characters in an archive header
487 FIXME: this really has nothing to do with ELF, this is a characteristic
488 of the archiver and should be independently tunable. This value is
489 a WAG (wild a** guess) */
492 /* Routines to byte-swap various sized integers from the data sections */
493 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
494 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
495 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
497 /* Routines to byte-swap various sized integers from the file headers */
498 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
499 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
500 bfd_getl16, bfd_getl_signed_16, bfd_putl16,
502 /* bfd_check_format: check the format of a file being read */
503 { _bfd_dummy_target, /* unknown format */
504 bfd_elfNN_object_p, /* assembler/linker output (object file) */
505 bfd_elfNN_archive_p, /* an archive */
506 bfd_elfNN_core_file_p /* a core file */
509 /* bfd_set_format: set the format of a file being written */
516 /* bfd_write_contents: write cached information into a file being written */
518 bfd_elfNN_write_object_contents,
519 bfd_elfNN_write_archive_contents,
520 bfd_elfNN_write_corefile_contents,
523 BFD_JUMP_TABLE_GENERIC (bfd_elfNN),
524 BFD_JUMP_TABLE_COPY (bfd_elfNN),
525 BFD_JUMP_TABLE_CORE (bfd_elfNN),
526 #ifdef bfd_elfNN_archive_functions
527 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive),
529 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
531 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN),
532 BFD_JUMP_TABLE_RELOCS (bfd_elfNN),
533 BFD_JUMP_TABLE_WRITE (bfd_elfNN),
534 BFD_JUMP_TABLE_LINK (bfd_elfNN),
535 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN),