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 /* Previously, backends could only use SHT_REL or SHT_RELA relocation
298 sections, but not both. They defined USE_REL to indicate SHT_REL
299 sections, and left it undefined to indicated SHT_RELA sections.
300 For backwards compatibility, we still support this usage. */
308 /* Use these in new code. */
309 #ifndef elf_backend_may_use_rel_p
310 #define elf_backend_may_use_rel_p USE_REL
312 #ifndef elf_backend_may_use_rela_p
313 #define elf_backend_may_use_rela_p !USE_REL
315 #ifndef elf_backend_default_use_rela_p
316 #define elf_backend_default_use_rela_p !USE_REL
319 #ifndef ELF_MACHINE_ALT1
320 #define ELF_MACHINE_ALT1 0
323 #ifndef ELF_MACHINE_ALT2
324 #define ELF_MACHINE_ALT2 0
327 #ifndef elf_backend_size_info
328 #define elf_backend_size_info _bfd_elfNN_size_info
331 extern const struct elf_size_info _bfd_elfNN_size_info
;
333 static CONST
struct elf_backend_data elfNN_bed
=
336 ELF_MACHINE_CODE
, /* elf_machine_code */
337 ELF_MAXPAGESIZE
, /* maxpagesize */
339 elf_backend_type_change_ok
,
341 elf_info_to_howto_rel
,
342 elf_backend_sym_is_global
,
343 elf_backend_object_p
,
344 elf_backend_symbol_processing
,
345 elf_backend_symbol_table_processing
,
346 elf_backend_get_symbol_type
,
347 elf_backend_section_processing
,
348 elf_backend_section_from_shdr
,
349 elf_backend_fake_sections
,
350 elf_backend_section_from_bfd_section
,
351 elf_backend_add_symbol_hook
,
352 elf_backend_link_output_symbol_hook
,
353 elf_backend_create_dynamic_sections
,
354 elf_backend_check_relocs
,
355 elf_backend_adjust_dynamic_symbol
,
356 elf_backend_always_size_sections
,
357 elf_backend_size_dynamic_sections
,
358 elf_backend_relocate_section
,
359 elf_backend_finish_dynamic_symbol
,
360 elf_backend_finish_dynamic_sections
,
361 elf_backend_begin_write_processing
,
362 elf_backend_final_write_processing
,
363 elf_backend_additional_program_headers
,
364 elf_backend_modify_segment_map
,
365 elf_backend_gc_mark_hook
,
366 elf_backend_gc_sweep_hook
,
367 elf_backend_post_process_headers
,
368 elf_backend_ecoff_debug_swap
,
371 &elf_backend_size_info
,
372 elf_backend_got_symbol_offset
,
373 elf_backend_got_header_size
,
374 elf_backend_plt_header_size
,
375 elf_backend_may_use_rel_p
,
376 elf_backend_may_use_rela_p
,
377 elf_backend_default_use_rela_p
,
378 elf_backend_want_got_plt
,
379 elf_backend_plt_readonly
,
380 elf_backend_want_plt_sym
,
381 elf_backend_plt_not_loaded
,
382 elf_backend_plt_alignment
,
383 elf_backend_can_gc_sections
386 #ifdef TARGET_BIG_SYM
387 const bfd_target TARGET_BIG_SYM
=
389 /* name: identify kind of target */
392 /* flavour: general indication about file */
393 bfd_target_elf_flavour
,
395 /* byteorder: data is big endian */
398 /* header_byteorder: header is also big endian */
401 /* object_flags: mask of all file flags */
402 (HAS_RELOC
| EXEC_P
| HAS_LINENO
| HAS_DEBUG
| HAS_SYMS
| HAS_LOCALS
|
403 DYNAMIC
| WP_TEXT
| D_PAGED
),
405 /* section_flags: mask of all section flags */
406 (SEC_HAS_CONTENTS
| SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_READONLY
|
407 SEC_CODE
| SEC_DATA
| SEC_DEBUGGING
| SEC_EXCLUDE
| SEC_SORT_ENTRIES
),
409 /* leading_symbol_char: is the first char of a user symbol
410 predictable, and if so what is it */
411 elf_symbol_leading_char
,
413 /* ar_pad_char: pad character for filenames within an archive header
414 FIXME: this really has nothing to do with ELF, this is a characteristic
415 of the archiver and/or os and should be independently tunable */
418 /* ar_max_namelen: maximum number of characters in an archive header
419 FIXME: this really has nothing to do with ELF, this is a characteristic
420 of the archiver and should be independently tunable. This value is
421 a WAG (wild a** guess) */
424 /* Routines to byte-swap various sized integers from the data sections */
425 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
426 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
427 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
,
429 /* Routines to byte-swap various sized integers from the file headers */
430 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
431 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
432 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
,
434 /* bfd_check_format: check the format of a file being read */
435 { _bfd_dummy_target
, /* unknown format */
436 bfd_elfNN_object_p
, /* assembler/linker output (object file) */
437 bfd_elfNN_archive_p
, /* an archive */
438 bfd_elfNN_core_file_p
/* a core file */
441 /* bfd_set_format: set the format of a file being written */
448 /* bfd_write_contents: write cached information into a file being written */
450 bfd_elfNN_write_object_contents
,
451 bfd_elfNN_write_archive_contents
,
452 bfd_elfNN_write_corefile_contents
,
455 BFD_JUMP_TABLE_GENERIC (bfd_elfNN
),
456 BFD_JUMP_TABLE_COPY (bfd_elfNN
),
457 BFD_JUMP_TABLE_CORE (bfd_elfNN
),
458 #ifdef bfd_elfNN_archive_functions
459 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive
),
461 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff
),
463 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN
),
464 BFD_JUMP_TABLE_RELOCS (bfd_elfNN
),
465 BFD_JUMP_TABLE_WRITE (bfd_elfNN
),
466 BFD_JUMP_TABLE_LINK (bfd_elfNN
),
467 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN
),
474 #ifdef TARGET_LITTLE_SYM
475 const bfd_target TARGET_LITTLE_SYM
=
477 /* name: identify kind of target */
480 /* flavour: general indication about file */
481 bfd_target_elf_flavour
,
483 /* byteorder: data is little endian */
486 /* header_byteorder: header is also little endian */
489 /* object_flags: mask of all file flags */
490 (HAS_RELOC
| EXEC_P
| HAS_LINENO
| HAS_DEBUG
| HAS_SYMS
| HAS_LOCALS
|
491 DYNAMIC
| WP_TEXT
| D_PAGED
),
493 /* section_flags: mask of all section flags */
494 (SEC_HAS_CONTENTS
| SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_READONLY
|
495 SEC_CODE
| SEC_DATA
| SEC_DEBUGGING
| SEC_EXCLUDE
| SEC_SORT_ENTRIES
),
497 /* leading_symbol_char: is the first char of a user symbol
498 predictable, and if so what is it */
499 elf_symbol_leading_char
,
501 /* ar_pad_char: pad character for filenames within an archive header
502 FIXME: this really has nothing to do with ELF, this is a characteristic
503 of the archiver and/or os and should be independently tunable */
506 /* ar_max_namelen: maximum number of characters in an archive header
507 FIXME: this really has nothing to do with ELF, this is a characteristic
508 of the archiver and should be independently tunable. This value is
509 a WAG (wild a** guess) */
512 /* Routines to byte-swap various sized integers from the data sections */
513 bfd_getl64
, bfd_getl_signed_64
, bfd_putl64
,
514 bfd_getl32
, bfd_getl_signed_32
, bfd_putl32
,
515 bfd_getl16
, bfd_getl_signed_16
, bfd_putl16
,
517 /* Routines to byte-swap various sized integers from the file headers */
518 bfd_getl64
, bfd_getl_signed_64
, bfd_putl64
,
519 bfd_getl32
, bfd_getl_signed_32
, bfd_putl32
,
520 bfd_getl16
, bfd_getl_signed_16
, bfd_putl16
,
522 /* bfd_check_format: check the format of a file being read */
523 { _bfd_dummy_target
, /* unknown format */
524 bfd_elfNN_object_p
, /* assembler/linker output (object file) */
525 bfd_elfNN_archive_p
, /* an archive */
526 bfd_elfNN_core_file_p
/* a core file */
529 /* bfd_set_format: set the format of a file being written */
536 /* bfd_write_contents: write cached information into a file being written */
538 bfd_elfNN_write_object_contents
,
539 bfd_elfNN_write_archive_contents
,
540 bfd_elfNN_write_corefile_contents
,
543 BFD_JUMP_TABLE_GENERIC (bfd_elfNN
),
544 BFD_JUMP_TABLE_COPY (bfd_elfNN
),
545 BFD_JUMP_TABLE_CORE (bfd_elfNN
),
546 #ifdef bfd_elfNN_archive_functions
547 BFD_JUMP_TABLE_ARCHIVE (bfd_elfNN_archive
),
549 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff
),
551 BFD_JUMP_TABLE_SYMBOLS (bfd_elfNN
),
552 BFD_JUMP_TABLE_RELOCS (bfd_elfNN
),
553 BFD_JUMP_TABLE_WRITE (bfd_elfNN
),
554 BFD_JUMP_TABLE_LINK (bfd_elfNN
),
555 BFD_JUMP_TABLE_DYNAMIC (bfd_elfNN
),