2010-04-14 Tristan Gingold <gingold@adacore.com>
[binutils.git] / bfd / targets.c
blob2e330e6dbed37909b61a4b49589682002ea12ef0
1 /* Generic target-file-type support for the BFD library.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
24 #include "sysdep.h"
25 #include "bfd.h"
26 #include "libbfd.h"
27 #include "fnmatch.h"
30 It's okay to see some:
31 #if 0
32 directives in this source file, as targets.c uses them to exclude
33 certain BFD vectors. This comment is specially formatted to catch
34 users who grep for ^#if 0, so please keep it this way!
38 SECTION
39 Targets
41 DESCRIPTION
42 Each port of BFD to a different machine requires the creation
43 of a target back end. All the back end provides to the root
44 part of BFD is a structure containing pointers to functions
45 which perform certain low level operations on files. BFD
46 translates the applications's requests through a pointer into
47 calls to the back end routines.
49 When a file is opened with <<bfd_openr>>, its format and
50 target are unknown. BFD uses various mechanisms to determine
51 how to interpret the file. The operations performed are:
53 o Create a BFD by calling the internal routine
54 <<_bfd_new_bfd>>, then call <<bfd_find_target>> with the
55 target string supplied to <<bfd_openr>> and the new BFD pointer.
57 o If a null target string was provided to <<bfd_find_target>>,
58 look up the environment variable <<GNUTARGET>> and use
59 that as the target string.
61 o If the target string is still <<NULL>>, or the target string is
62 <<default>>, then use the first item in the target vector
63 as the target type, and set <<target_defaulted>> in the BFD to
64 cause <<bfd_check_format>> to loop through all the targets.
65 @xref{bfd_target}. @xref{Formats}.
67 o Otherwise, inspect the elements in the target vector
68 one by one, until a match on target name is found. When found,
69 use it.
71 o Otherwise return the error <<bfd_error_invalid_target>> to
72 <<bfd_openr>>.
74 o <<bfd_openr>> attempts to open the file using
75 <<bfd_open_file>>, and returns the BFD.
77 Once the BFD has been opened and the target selected, the file
78 format may be determined. This is done by calling
79 <<bfd_check_format>> on the BFD with a suggested format.
80 If <<target_defaulted>> has been set, each possible target
81 type is tried to see if it recognizes the specified format.
82 <<bfd_check_format>> returns <<TRUE>> when the caller guesses right.
83 @menu
84 @* bfd_target::
85 @end menu
90 INODE
91 bfd_target, , Targets, Targets
92 DOCDD
93 SUBSECTION
94 bfd_target
96 DESCRIPTION
97 This structure contains everything that BFD knows about a
98 target. It includes things like its byte order, name, and which
99 routines to call to do various operations.
101 Every BFD points to a target structure with its <<xvec>>
102 member.
104 The macros below are used to dispatch to functions through the
105 <<bfd_target>> vector. They are used in a number of macros further
106 down in @file{bfd.h}, and are also used when calling various
107 routines by hand inside the BFD implementation. The @var{arglist}
108 argument must be parenthesized; it contains all the arguments
109 to the called function.
111 They make the documentation (more) unpleasant to read, so if
112 someone wants to fix this and not break the above, please do.
114 .#define BFD_SEND(bfd, message, arglist) \
115 . ((*((bfd)->xvec->message)) arglist)
117 .#ifdef DEBUG_BFD_SEND
118 .#undef BFD_SEND
119 .#define BFD_SEND(bfd, message, arglist) \
120 . (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
121 . ((*((bfd)->xvec->message)) arglist) : \
122 . (bfd_assert (__FILE__,__LINE__), NULL))
123 .#endif
125 For operations which index on the BFD format:
127 .#define BFD_SEND_FMT(bfd, message, arglist) \
128 . (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)
130 .#ifdef DEBUG_BFD_SEND
131 .#undef BFD_SEND_FMT
132 .#define BFD_SEND_FMT(bfd, message, arglist) \
133 . (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
134 . (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
135 . (bfd_assert (__FILE__,__LINE__), NULL))
136 .#endif
138 This is the structure which defines the type of BFD this is. The
139 <<xvec>> member of the struct <<bfd>> itself points here. Each
140 module that implements access to a different target under BFD,
141 defines one of these.
143 FIXME, these names should be rationalised with the names of
144 the entry points which call them. Too bad we can't have one
145 macro to define them both!
147 .enum bfd_flavour
149 . bfd_target_unknown_flavour,
150 . bfd_target_aout_flavour,
151 . bfd_target_coff_flavour,
152 . bfd_target_ecoff_flavour,
153 . bfd_target_xcoff_flavour,
154 . bfd_target_elf_flavour,
155 . bfd_target_ieee_flavour,
156 . bfd_target_nlm_flavour,
157 . bfd_target_oasys_flavour,
158 . bfd_target_tekhex_flavour,
159 . bfd_target_srec_flavour,
160 . bfd_target_verilog_flavour,
161 . bfd_target_ihex_flavour,
162 . bfd_target_som_flavour,
163 . bfd_target_os9k_flavour,
164 . bfd_target_versados_flavour,
165 . bfd_target_msdos_flavour,
166 . bfd_target_ovax_flavour,
167 . bfd_target_evax_flavour,
168 . bfd_target_mmo_flavour,
169 . bfd_target_mach_o_flavour,
170 . bfd_target_pef_flavour,
171 . bfd_target_pef_xlib_flavour,
172 . bfd_target_sym_flavour
175 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
177 .{* Forward declaration. *}
178 .typedef struct bfd_link_info _bfd_link_info;
180 .typedef struct bfd_target
182 . {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc. *}
183 . char *name;
185 . {* The "flavour" of a back end is a general indication about
186 . the contents of a file. *}
187 . enum bfd_flavour flavour;
189 . {* The order of bytes within the data area of a file. *}
190 . enum bfd_endian byteorder;
192 . {* The order of bytes within the header parts of a file. *}
193 . enum bfd_endian header_byteorder;
195 . {* A mask of all the flags which an executable may have set -
196 . from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>. *}
197 . flagword object_flags;
199 . {* A mask of all the flags which a section may have set - from
200 . the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>. *}
201 . flagword section_flags;
203 . {* The character normally found at the front of a symbol.
204 . (if any), perhaps `_'. *}
205 . char symbol_leading_char;
207 . {* The pad character for file names within an archive header. *}
208 . char ar_pad_char;
210 . {* The maximum number of characters in an archive header. *}
211 . unsigned short ar_max_namelen;
213 . {* Entries for byte swapping for data. These are different from the
214 . other entry points, since they don't take a BFD as the first argument.
215 . Certain other handlers could do the same. *}
216 . bfd_uint64_t (*bfd_getx64) (const void *);
217 . bfd_int64_t (*bfd_getx_signed_64) (const void *);
218 . void (*bfd_putx64) (bfd_uint64_t, void *);
219 . bfd_vma (*bfd_getx32) (const void *);
220 . bfd_signed_vma (*bfd_getx_signed_32) (const void *);
221 . void (*bfd_putx32) (bfd_vma, void *);
222 . bfd_vma (*bfd_getx16) (const void *);
223 . bfd_signed_vma (*bfd_getx_signed_16) (const void *);
224 . void (*bfd_putx16) (bfd_vma, void *);
226 . {* Byte swapping for the headers. *}
227 . bfd_uint64_t (*bfd_h_getx64) (const void *);
228 . bfd_int64_t (*bfd_h_getx_signed_64) (const void *);
229 . void (*bfd_h_putx64) (bfd_uint64_t, void *);
230 . bfd_vma (*bfd_h_getx32) (const void *);
231 . bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
232 . void (*bfd_h_putx32) (bfd_vma, void *);
233 . bfd_vma (*bfd_h_getx16) (const void *);
234 . bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
235 . void (*bfd_h_putx16) (bfd_vma, void *);
237 . {* Format dependent routines: these are vectors of entry points
238 . within the target vector structure, one for each format to check. *}
240 . {* Check the format of a file being read. Return a <<bfd_target *>> or zero. *}
241 . const struct bfd_target *(*_bfd_check_format[bfd_type_end]) (bfd *);
243 . {* Set the format of a file being written. *}
244 . bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *);
246 . {* Write cached information into a file being written, at <<bfd_close>>. *}
247 . bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *);
249 The general target vector. These vectors are initialized using the
250 BFD_JUMP_TABLE macros.
252 . {* Generic entry points. *}
253 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
254 . NAME##_close_and_cleanup, \
255 . NAME##_bfd_free_cached_info, \
256 . NAME##_new_section_hook, \
257 . NAME##_get_section_contents, \
258 . NAME##_get_section_contents_in_window
260 . {* Called when the BFD is being closed to do any necessary cleanup. *}
261 . bfd_boolean (*_close_and_cleanup) (bfd *);
262 . {* Ask the BFD to free all cached information. *}
263 . bfd_boolean (*_bfd_free_cached_info) (bfd *);
264 . {* Called when a new section is created. *}
265 . bfd_boolean (*_new_section_hook) (bfd *, sec_ptr);
266 . {* Read the contents of a section. *}
267 . bfd_boolean (*_bfd_get_section_contents)
268 . (bfd *, sec_ptr, void *, file_ptr, bfd_size_type);
269 . bfd_boolean (*_bfd_get_section_contents_in_window)
270 . (bfd *, sec_ptr, bfd_window *, file_ptr, bfd_size_type);
272 . {* Entry points to copy private data. *}
273 .#define BFD_JUMP_TABLE_COPY(NAME) \
274 . NAME##_bfd_copy_private_bfd_data, \
275 . NAME##_bfd_merge_private_bfd_data, \
276 . _bfd_generic_init_private_section_data, \
277 . NAME##_bfd_copy_private_section_data, \
278 . NAME##_bfd_copy_private_symbol_data, \
279 . NAME##_bfd_copy_private_header_data, \
280 . NAME##_bfd_set_private_flags, \
281 . NAME##_bfd_print_private_bfd_data
283 . {* Called to copy BFD general private data from one object file
284 . to another. *}
285 . bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
286 . {* Called to merge BFD general private data from one object file
287 . to a common output file when linking. *}
288 . bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, bfd *);
289 . {* Called to initialize BFD private section data from one object file
290 . to another. *}
291 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
292 . BFD_SEND (obfd, _bfd_init_private_section_data, (ibfd, isec, obfd, osec, link_info))
293 . bfd_boolean (*_bfd_init_private_section_data)
294 . (bfd *, sec_ptr, bfd *, sec_ptr, struct bfd_link_info *);
295 . {* Called to copy BFD private section data from one object file
296 . to another. *}
297 . bfd_boolean (*_bfd_copy_private_section_data)
298 . (bfd *, sec_ptr, bfd *, sec_ptr);
299 . {* Called to copy BFD private symbol data from one symbol
300 . to another. *}
301 . bfd_boolean (*_bfd_copy_private_symbol_data)
302 . (bfd *, asymbol *, bfd *, asymbol *);
303 . {* Called to copy BFD private header data from one object file
304 . to another. *}
305 . bfd_boolean (*_bfd_copy_private_header_data)
306 . (bfd *, bfd *);
307 . {* Called to set private backend flags. *}
308 . bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword);
310 . {* Called to print private BFD data. *}
311 . bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *);
313 . {* Core file entry points. *}
314 .#define BFD_JUMP_TABLE_CORE(NAME) \
315 . NAME##_core_file_failing_command, \
316 . NAME##_core_file_failing_signal, \
317 . NAME##_core_file_matches_executable_p
319 . char * (*_core_file_failing_command) (bfd *);
320 . int (*_core_file_failing_signal) (bfd *);
321 . bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *);
323 . {* Archive entry points. *}
324 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
325 . NAME##_slurp_armap, \
326 . NAME##_slurp_extended_name_table, \
327 . NAME##_construct_extended_name_table, \
328 . NAME##_truncate_arname, \
329 . NAME##_write_armap, \
330 . NAME##_read_ar_hdr, \
331 . NAME##_write_ar_hdr, \
332 . NAME##_openr_next_archived_file, \
333 . NAME##_get_elt_at_index, \
334 . NAME##_generic_stat_arch_elt, \
335 . NAME##_update_armap_timestamp
337 . bfd_boolean (*_bfd_slurp_armap) (bfd *);
338 . bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *);
339 . bfd_boolean (*_bfd_construct_extended_name_table)
340 . (bfd *, char **, bfd_size_type *, const char **);
341 . void (*_bfd_truncate_arname) (bfd *, const char *, char *);
342 . bfd_boolean (*write_armap)
343 . (bfd *, unsigned int, struct orl *, unsigned int, int);
344 . void * (*_bfd_read_ar_hdr_fn) (bfd *);
345 . bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
346 . bfd * (*openr_next_archived_file) (bfd *, bfd *);
347 .#define bfd_get_elt_at_index(b,i) BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
348 . bfd * (*_bfd_get_elt_at_index) (bfd *, symindex);
349 . int (*_bfd_stat_arch_elt) (bfd *, struct stat *);
350 . bfd_boolean (*_bfd_update_armap_timestamp) (bfd *);
352 . {* Entry points used for symbols. *}
353 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
354 . NAME##_get_symtab_upper_bound, \
355 . NAME##_canonicalize_symtab, \
356 . NAME##_make_empty_symbol, \
357 . NAME##_print_symbol, \
358 . NAME##_get_symbol_info, \
359 . NAME##_bfd_is_local_label_name, \
360 . NAME##_bfd_is_target_special_symbol, \
361 . NAME##_get_lineno, \
362 . NAME##_find_nearest_line, \
363 . _bfd_generic_find_line, \
364 . NAME##_find_inliner_info, \
365 . NAME##_bfd_make_debug_symbol, \
366 . NAME##_read_minisymbols, \
367 . NAME##_minisymbol_to_symbol
369 . long (*_bfd_get_symtab_upper_bound) (bfd *);
370 . long (*_bfd_canonicalize_symtab)
371 . (bfd *, struct bfd_symbol **);
372 . struct bfd_symbol *
373 . (*_bfd_make_empty_symbol) (bfd *);
374 . void (*_bfd_print_symbol)
375 . (bfd *, void *, struct bfd_symbol *, bfd_print_symbol_type);
376 .#define bfd_print_symbol(b,p,s,e) BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
377 . void (*_bfd_get_symbol_info)
378 . (bfd *, struct bfd_symbol *, symbol_info *);
379 .#define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
380 . bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
381 . bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
382 . alent * (*_get_lineno) (bfd *, struct bfd_symbol *);
383 . bfd_boolean (*_bfd_find_nearest_line)
384 . (bfd *, struct bfd_section *, struct bfd_symbol **, bfd_vma,
385 . const char **, const char **, unsigned int *);
386 . bfd_boolean (*_bfd_find_line)
387 . (bfd *, struct bfd_symbol **, struct bfd_symbol *,
388 . const char **, unsigned int *);
389 . bfd_boolean (*_bfd_find_inliner_info)
390 . (bfd *, const char **, const char **, unsigned int *);
391 . {* Back-door to allow format-aware applications to create debug symbols
392 . while using BFD for everything else. Currently used by the assembler
393 . when creating COFF files. *}
394 . asymbol * (*_bfd_make_debug_symbol)
395 . (bfd *, void *, unsigned long size);
396 .#define bfd_read_minisymbols(b, d, m, s) \
397 . BFD_SEND (b, _read_minisymbols, (b, d, m, s))
398 . long (*_read_minisymbols)
399 . (bfd *, bfd_boolean, void **, unsigned int *);
400 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
401 . BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
402 . asymbol * (*_minisymbol_to_symbol)
403 . (bfd *, bfd_boolean, const void *, asymbol *);
405 . {* Routines for relocs. *}
406 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
407 . NAME##_get_reloc_upper_bound, \
408 . NAME##_canonicalize_reloc, \
409 . NAME##_bfd_reloc_type_lookup, \
410 . NAME##_bfd_reloc_name_lookup
412 . long (*_get_reloc_upper_bound) (bfd *, sec_ptr);
413 . long (*_bfd_canonicalize_reloc)
414 . (bfd *, sec_ptr, arelent **, struct bfd_symbol **);
415 . {* See documentation on reloc types. *}
416 . reloc_howto_type *
417 . (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
418 . reloc_howto_type *
419 . (*reloc_name_lookup) (bfd *, const char *);
422 . {* Routines used when writing an object file. *}
423 .#define BFD_JUMP_TABLE_WRITE(NAME) \
424 . NAME##_set_arch_mach, \
425 . NAME##_set_section_contents
427 . bfd_boolean (*_bfd_set_arch_mach)
428 . (bfd *, enum bfd_architecture, unsigned long);
429 . bfd_boolean (*_bfd_set_section_contents)
430 . (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type);
432 . {* Routines used by the linker. *}
433 .#define BFD_JUMP_TABLE_LINK(NAME) \
434 . NAME##_sizeof_headers, \
435 . NAME##_bfd_get_relocated_section_contents, \
436 . NAME##_bfd_relax_section, \
437 . NAME##_bfd_link_hash_table_create, \
438 . NAME##_bfd_link_hash_table_free, \
439 . NAME##_bfd_link_add_symbols, \
440 . NAME##_bfd_link_just_syms, \
441 . NAME##_bfd_copy_link_hash_symbol_type, \
442 . NAME##_bfd_final_link, \
443 . NAME##_bfd_link_split_section, \
444 . NAME##_bfd_gc_sections, \
445 . NAME##_bfd_merge_sections, \
446 . NAME##_bfd_is_group_section, \
447 . NAME##_bfd_discard_group, \
448 . NAME##_section_already_linked, \
449 . NAME##_bfd_define_common_symbol
451 . int (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
452 . bfd_byte * (*_bfd_get_relocated_section_contents)
453 . (bfd *, struct bfd_link_info *, struct bfd_link_order *,
454 . bfd_byte *, bfd_boolean, struct bfd_symbol **);
456 . bfd_boolean (*_bfd_relax_section)
457 . (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
459 . {* Create a hash table for the linker. Different backends store
460 . different information in this table. *}
461 . struct bfd_link_hash_table *
462 . (*_bfd_link_hash_table_create) (bfd *);
464 . {* Release the memory associated with the linker hash table. *}
465 . void (*_bfd_link_hash_table_free) (struct bfd_link_hash_table *);
467 . {* Add symbols from this object file into the hash table. *}
468 . bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
470 . {* Indicate that we are only retrieving symbol values from this section. *}
471 . void (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
473 . {* Copy the symbol type of a linker hash table entry. *}
474 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
475 . BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
476 . void (*_bfd_copy_link_hash_symbol_type)
477 . (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
479 . {* Do a link based on the link_order structures attached to each
480 . section of the BFD. *}
481 . bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);
483 . {* Should this section be split up into smaller pieces during linking. *}
484 . bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);
486 . {* Remove sections that are not referenced from the output. *}
487 . bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
489 . {* Attempt to merge SEC_MERGE sections. *}
490 . bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
492 . {* Is this section a member of a group? *}
493 . bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
495 . {* Discard members of a group. *}
496 . bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *);
498 . {* Check if SEC has been already linked during a reloceatable or
499 . final link. *}
500 . void (*_section_already_linked) (bfd *, struct bfd_section *,
501 . struct bfd_link_info *);
503 . {* Define a common symbol. *}
504 . bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
505 . struct bfd_link_hash_entry *);
507 . {* Routines to handle dynamic symbols and relocs. *}
508 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
509 . NAME##_get_dynamic_symtab_upper_bound, \
510 . NAME##_canonicalize_dynamic_symtab, \
511 . NAME##_get_synthetic_symtab, \
512 . NAME##_get_dynamic_reloc_upper_bound, \
513 . NAME##_canonicalize_dynamic_reloc
515 . {* Get the amount of memory required to hold the dynamic symbols. *}
516 . long (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
517 . {* Read in the dynamic symbols. *}
518 . long (*_bfd_canonicalize_dynamic_symtab)
519 . (bfd *, struct bfd_symbol **);
520 . {* Create synthetized symbols. *}
521 . long (*_bfd_get_synthetic_symtab)
522 . (bfd *, long, struct bfd_symbol **, long, struct bfd_symbol **,
523 . struct bfd_symbol **);
524 . {* Get the amount of memory required to hold the dynamic relocs. *}
525 . long (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
526 . {* Read in the dynamic relocs. *}
527 . long (*_bfd_canonicalize_dynamic_reloc)
528 . (bfd *, arelent **, struct bfd_symbol **);
531 A pointer to an alternative bfd_target in case the current one is not
532 satisfactory. This can happen when the target cpu supports both big
533 and little endian code, and target chosen by the linker has the wrong
534 endianness. The function open_output() in ld/ldlang.c uses this field
535 to find an alternative output format that is suitable.
537 . {* Opposite endian version of this target. *}
538 . const struct bfd_target * alternative_target;
541 . {* Data for use by back-end routines, which isn't
542 . generic enough to belong in this structure. *}
543 . const void *backend_data;
545 .} bfd_target;
549 /* All known xvecs (even those that don't compile on all systems).
550 Alphabetized for easy reference.
551 They are listed a second time below, since
552 we can't intermix extern's and initializers. */
553 extern const bfd_target a_out_adobe_vec;
554 extern const bfd_target aix5coff64_vec;
555 extern const bfd_target aout0_big_vec;
556 extern const bfd_target aout_arm_big_vec;
557 extern const bfd_target aout_arm_little_vec;
558 extern const bfd_target aout_mips_big_vec;
559 extern const bfd_target aout_mips_little_vec;
560 extern const bfd_target apollocoff_vec;
561 extern const bfd_target arm_epoc_pe_big_vec;
562 extern const bfd_target arm_epoc_pe_little_vec;
563 extern const bfd_target arm_epoc_pei_big_vec;
564 extern const bfd_target arm_epoc_pei_little_vec;
565 extern const bfd_target arm_wince_pe_big_vec;
566 extern const bfd_target arm_wince_pe_little_vec;
567 extern const bfd_target arm_wince_pei_big_vec;
568 extern const bfd_target arm_wince_pei_little_vec;
569 extern const bfd_target armcoff_big_vec;
570 extern const bfd_target armcoff_little_vec;
571 extern const bfd_target armnetbsd_vec;
572 extern const bfd_target armpe_big_vec;
573 extern const bfd_target armpe_little_vec;
574 extern const bfd_target armpei_big_vec;
575 extern const bfd_target armpei_little_vec;
576 extern const bfd_target b_out_vec_big_host;
577 extern const bfd_target b_out_vec_little_host;
578 extern const bfd_target bfd_pei_ia64_vec;
579 extern const bfd_target bfd_elf32_avr_vec;
580 extern const bfd_target bfd_elf32_bfin_vec;
581 extern const bfd_target bfd_elf32_bfinfdpic_vec;
582 extern const bfd_target bfd_elf32_big_generic_vec;
583 extern const bfd_target bfd_elf32_bigarc_vec;
584 extern const bfd_target bfd_elf32_bigarm_vec;
585 extern const bfd_target bfd_elf32_bigarm_symbian_vec;
586 extern const bfd_target bfd_elf32_bigarm_vxworks_vec;
587 extern const bfd_target bfd_elf32_bigmips_vec;
588 extern const bfd_target bfd_elf32_bigmips_vxworks_vec;
589 extern const bfd_target bfd_elf32_cr16_vec;
590 extern const bfd_target bfd_elf32_cr16c_vec;
591 extern const bfd_target bfd_elf32_cris_vec;
592 extern const bfd_target bfd_elf32_crx_vec;
593 extern const bfd_target bfd_elf32_d10v_vec;
594 extern const bfd_target bfd_elf32_d30v_vec;
595 extern const bfd_target bfd_elf32_dlx_big_vec;
596 extern const bfd_target bfd_elf32_fr30_vec;
597 extern const bfd_target bfd_elf32_frv_vec;
598 extern const bfd_target bfd_elf32_frvfdpic_vec;
599 extern const bfd_target bfd_elf32_moxie_vec;
600 extern const bfd_target bfd_elf32_h8300_vec;
601 extern const bfd_target bfd_elf32_hppa_linux_vec;
602 extern const bfd_target bfd_elf32_hppa_nbsd_vec;
603 extern const bfd_target bfd_elf32_hppa_vec;
604 extern const bfd_target bfd_elf32_i370_vec;
605 extern const bfd_target bfd_elf32_i386_freebsd_vec;
606 extern const bfd_target bfd_elf32_i386_sol2_vec;
607 extern const bfd_target bfd_elf32_i386_vxworks_vec;
608 extern const bfd_target bfd_elf32_i386_vec;
609 extern const bfd_target bfd_elf32_i860_little_vec;
610 extern const bfd_target bfd_elf32_i860_vec;
611 extern const bfd_target bfd_elf32_i960_vec;
612 extern const bfd_target bfd_elf32_ia64_big_vec;
613 extern const bfd_target bfd_elf32_ia64_hpux_big_vec;
614 extern const bfd_target bfd_elf32_ip2k_vec;
615 extern const bfd_target bfd_elf32_iq2000_vec;
616 extern const bfd_target bfd_elf32_lm32_vec;
617 extern const bfd_target bfd_elf32_lm32fdpic_vec;
618 extern const bfd_target bfd_elf32_little_generic_vec;
619 extern const bfd_target bfd_elf32_littlearc_vec;
620 extern const bfd_target bfd_elf32_littlearm_vec;
621 extern const bfd_target bfd_elf32_littlearm_symbian_vec;
622 extern const bfd_target bfd_elf32_littlearm_vxworks_vec;
623 extern const bfd_target bfd_elf32_littlemips_vec;
624 extern const bfd_target bfd_elf32_littlemips_vxworks_vec;
625 extern const bfd_target bfd_elf32_m32c_vec;
626 extern const bfd_target bfd_elf32_m32r_vec;
627 extern const bfd_target bfd_elf32_m32rle_vec;
628 extern const bfd_target bfd_elf32_m32rlin_vec;
629 extern const bfd_target bfd_elf32_m32rlelin_vec;
630 extern const bfd_target bfd_elf32_m68hc11_vec;
631 extern const bfd_target bfd_elf32_m68hc12_vec;
632 extern const bfd_target bfd_elf32_m68k_vec;
633 extern const bfd_target bfd_elf32_m88k_vec;
634 extern const bfd_target bfd_elf32_mcore_big_vec;
635 extern const bfd_target bfd_elf32_mcore_little_vec;
636 extern const bfd_target bfd_elf32_mep_vec;
637 extern const bfd_target bfd_elf32_mep_little_vec;
638 extern const bfd_target bfd_elf32_microblaze_vec;
639 extern const bfd_target bfd_elf32_mn10200_vec;
640 extern const bfd_target bfd_elf32_mn10300_vec;
641 extern const bfd_target bfd_elf32_mt_vec;
642 extern const bfd_target bfd_elf32_msp430_vec;
643 extern const bfd_target bfd_elf32_nbigmips_vec;
644 extern const bfd_target bfd_elf32_nlittlemips_vec;
645 extern const bfd_target bfd_elf32_ntradbigmips_vec;
646 extern const bfd_target bfd_elf32_ntradlittlemips_vec;
647 extern const bfd_target bfd_elf32_openrisc_vec;
648 extern const bfd_target bfd_elf32_or32_big_vec;
649 extern const bfd_target bfd_elf32_pj_vec;
650 extern const bfd_target bfd_elf32_pjl_vec;
651 extern const bfd_target bfd_elf32_powerpc_vec;
652 extern const bfd_target bfd_elf32_powerpcle_vec;
653 extern const bfd_target bfd_elf32_powerpc_vxworks_vec;
654 extern const bfd_target bfd_elf32_rx_le_vec;
655 extern const bfd_target bfd_elf32_rx_be_vec;
656 extern const bfd_target bfd_elf32_s390_vec;
657 extern const bfd_target bfd_elf32_bigscore_vec;
658 extern const bfd_target bfd_elf32_littlescore_vec;
659 extern const bfd_target bfd_elf32_sh64_vec;
660 extern const bfd_target bfd_elf32_sh64l_vec;
661 extern const bfd_target bfd_elf32_sh64lin_vec;
662 extern const bfd_target bfd_elf32_sh64blin_vec;
663 extern const bfd_target bfd_elf32_sh64lnbsd_vec;
664 extern const bfd_target bfd_elf32_sh64nbsd_vec;
665 extern const bfd_target bfd_elf32_sh_vec;
666 extern const bfd_target bfd_elf32_shblin_vec;
667 extern const bfd_target bfd_elf32_shl_vec;
668 extern const bfd_target bfd_elf32_shl_symbian_vec;
669 extern const bfd_target bfd_elf32_shlin_vec;
670 extern const bfd_target bfd_elf32_shlnbsd_vec;
671 extern const bfd_target bfd_elf32_shlvxworks_vec;
672 extern const bfd_target bfd_elf32_shnbsd_vec;
673 extern const bfd_target bfd_elf32_shvxworks_vec;
674 extern const bfd_target bfd_elf32_sparc_vec;
675 extern const bfd_target bfd_elf32_sparc_vxworks_vec;
676 extern const bfd_target bfd_elf32_spu_vec;
677 extern const bfd_target bfd_elf32_tic6x_be_vec;
678 extern const bfd_target bfd_elf32_tic6x_le_vec;
679 extern const bfd_target bfd_elf32_tradbigmips_vec;
680 extern const bfd_target bfd_elf32_tradlittlemips_vec;
681 extern const bfd_target bfd_elf32_us_cris_vec;
682 extern const bfd_target bfd_elf32_v850_vec;
683 extern const bfd_target bfd_elf32_vax_vec;
684 extern const bfd_target bfd_elf32_xc16x_vec;
685 extern const bfd_target bfd_elf32_xstormy16_vec;
686 extern const bfd_target bfd_elf32_xtensa_be_vec;
687 extern const bfd_target bfd_elf32_xtensa_le_vec;
688 extern const bfd_target bfd_elf64_alpha_freebsd_vec;
689 extern const bfd_target bfd_elf64_alpha_vec;
690 extern const bfd_target bfd_elf64_big_generic_vec;
691 extern const bfd_target bfd_elf64_bigmips_vec;
692 extern const bfd_target bfd_elf64_hppa_linux_vec;
693 extern const bfd_target bfd_elf64_hppa_vec;
694 extern const bfd_target bfd_elf64_ia64_big_vec;
695 extern const bfd_target bfd_elf64_ia64_hpux_big_vec;
696 extern const bfd_target bfd_elf64_ia64_little_vec;
697 extern const bfd_target bfd_elf64_ia64_vms_vec;
698 extern const bfd_target bfd_elf64_little_generic_vec;
699 extern const bfd_target bfd_elf64_littlemips_vec;
700 extern const bfd_target bfd_elf64_mmix_vec;
701 extern const bfd_target bfd_elf64_powerpc_vec;
702 extern const bfd_target bfd_elf64_powerpcle_vec;
703 extern const bfd_target bfd_elf64_s390_vec;
704 extern const bfd_target bfd_elf64_sh64_vec;
705 extern const bfd_target bfd_elf64_sh64l_vec;
706 extern const bfd_target bfd_elf64_sh64lin_vec;
707 extern const bfd_target bfd_elf64_sh64blin_vec;
708 extern const bfd_target bfd_elf64_sh64lnbsd_vec;
709 extern const bfd_target bfd_elf64_sh64nbsd_vec;
710 extern const bfd_target bfd_elf64_sparc_vec;
711 extern const bfd_target bfd_elf64_sparc_freebsd_vec;
712 extern const bfd_target bfd_elf64_tradbigmips_vec;
713 extern const bfd_target bfd_elf64_tradlittlemips_vec;
714 extern const bfd_target bfd_elf64_x86_64_freebsd_vec;
715 extern const bfd_target bfd_elf64_x86_64_sol2_vec;
716 extern const bfd_target bfd_elf64_x86_64_vec;
717 extern const bfd_target bfd_elf64_l1om_freebsd_vec;
718 extern const bfd_target bfd_elf64_l1om_vec;
719 extern const bfd_target bfd_mmo_vec;
720 extern const bfd_target bfd_powerpc_pe_vec;
721 extern const bfd_target bfd_powerpc_pei_vec;
722 extern const bfd_target bfd_powerpcle_pe_vec;
723 extern const bfd_target bfd_powerpcle_pei_vec;
724 extern const bfd_target cris_aout_vec;
725 extern const bfd_target demo_64_vec;
726 extern const bfd_target ecoff_big_vec;
727 extern const bfd_target ecoff_biglittle_vec;
728 extern const bfd_target ecoff_little_vec;
729 extern const bfd_target ecoffalpha_little_vec;
730 extern const bfd_target go32coff_vec;
731 extern const bfd_target go32stubbedcoff_vec;
732 extern const bfd_target h8300coff_vec;
733 extern const bfd_target h8500coff_vec;
734 extern const bfd_target host_aout_vec;
735 extern const bfd_target hp300bsd_vec;
736 extern const bfd_target hp300hpux_vec;
737 extern const bfd_target i386aout_vec;
738 extern const bfd_target i386bsd_vec;
739 extern const bfd_target i386coff_vec;
740 extern const bfd_target i386dynix_vec;
741 extern const bfd_target i386freebsd_vec;
742 extern const bfd_target i386linux_vec;
743 extern const bfd_target i386lynx_aout_vec;
744 extern const bfd_target i386lynx_coff_vec;
745 extern const bfd_target i386mach3_vec;
746 extern const bfd_target i386msdos_vec;
747 extern const bfd_target i386netbsd_vec;
748 extern const bfd_target i386os9k_vec;
749 extern const bfd_target i386pe_vec;
750 extern const bfd_target i386pei_vec;
751 extern const bfd_target i860coff_vec;
752 extern const bfd_target icoff_big_vec;
753 extern const bfd_target icoff_little_vec;
754 extern const bfd_target ieee_vec;
755 extern const bfd_target m68k4knetbsd_vec;
756 extern const bfd_target m68kaux_coff_vec;
757 extern const bfd_target m68kcoff_vec;
758 extern const bfd_target m68kcoffun_vec;
759 extern const bfd_target m68klinux_vec;
760 extern const bfd_target m68knetbsd_vec;
761 extern const bfd_target m68ksysvcoff_vec;
762 extern const bfd_target m88kbcs_vec;
763 extern const bfd_target m88kmach3_vec;
764 extern const bfd_target m88kopenbsd_vec;
765 extern const bfd_target mach_o_be_vec;
766 extern const bfd_target mach_o_le_vec;
767 extern const bfd_target mach_o_fat_vec;
768 extern const bfd_target mach_o_i386_vec;
769 extern const bfd_target mach_o_x86_64_vec;
770 extern const bfd_target maxqcoff_vec;
771 extern const bfd_target mcore_pe_big_vec;
772 extern const bfd_target mcore_pe_little_vec;
773 extern const bfd_target mcore_pei_big_vec;
774 extern const bfd_target mcore_pei_little_vec;
775 extern const bfd_target mipslpe_vec;
776 extern const bfd_target mipslpei_vec;
777 extern const bfd_target newsos3_vec;
778 extern const bfd_target nlm32_alpha_vec;
779 extern const bfd_target nlm32_i386_vec;
780 extern const bfd_target nlm32_powerpc_vec;
781 extern const bfd_target nlm32_sparc_vec;
782 extern const bfd_target oasys_vec;
783 extern const bfd_target or32coff_big_vec;
784 extern const bfd_target pc532machaout_vec;
785 extern const bfd_target pc532netbsd_vec;
786 extern const bfd_target pdp11_aout_vec;
787 extern const bfd_target pef_vec;
788 extern const bfd_target pef_xlib_vec;
789 extern const bfd_target plugin_vec;
790 extern const bfd_target pmac_xcoff_vec;
791 extern const bfd_target ppcboot_vec;
792 extern const bfd_target riscix_vec;
793 extern const bfd_target rs6000coff64_vec;
794 extern const bfd_target rs6000coff_vec;
795 extern const bfd_target shcoff_small_vec;
796 extern const bfd_target shcoff_vec;
797 extern const bfd_target shlcoff_small_vec;
798 extern const bfd_target shlcoff_vec;
799 extern const bfd_target shlpe_vec;
800 extern const bfd_target shlpei_vec;
801 extern const bfd_target som_vec;
802 extern const bfd_target sparccoff_vec;
803 extern const bfd_target sparcle_aout_vec;
804 extern const bfd_target sparclinux_vec;
805 extern const bfd_target sparclynx_aout_vec;
806 extern const bfd_target sparclynx_coff_vec;
807 extern const bfd_target sparcnetbsd_vec;
808 extern const bfd_target sunos_big_vec;
809 extern const bfd_target sym_vec;
810 extern const bfd_target tic30_aout_vec;
811 extern const bfd_target tic30_coff_vec;
812 extern const bfd_target tic4x_coff0_beh_vec;
813 extern const bfd_target tic4x_coff0_vec;
814 extern const bfd_target tic4x_coff1_beh_vec;
815 extern const bfd_target tic4x_coff1_vec;
816 extern const bfd_target tic4x_coff2_beh_vec;
817 extern const bfd_target tic4x_coff2_vec;
818 extern const bfd_target tic54x_coff0_beh_vec;
819 extern const bfd_target tic54x_coff0_vec;
820 extern const bfd_target tic54x_coff1_beh_vec;
821 extern const bfd_target tic54x_coff1_vec;
822 extern const bfd_target tic54x_coff2_beh_vec;
823 extern const bfd_target tic54x_coff2_vec;
824 extern const bfd_target tic80coff_vec;
825 extern const bfd_target vaxbsd_vec;
826 extern const bfd_target vaxnetbsd_vec;
827 extern const bfd_target vax1knetbsd_vec;
828 extern const bfd_target versados_vec;
829 extern const bfd_target vms_alpha_vec;
830 extern const bfd_target vms_lib_txt_vec;
831 extern const bfd_target w65_vec;
832 extern const bfd_target we32kcoff_vec;
833 extern const bfd_target x86_64pe_vec;
834 extern const bfd_target x86_64pei_vec;
835 extern const bfd_target x86_64coff_vec;
836 extern const bfd_target z80coff_vec;
837 extern const bfd_target z8kcoff_vec;
839 /* These are always included. */
840 extern const bfd_target srec_vec;
841 extern const bfd_target verilog_vec;
842 extern const bfd_target symbolsrec_vec;
843 extern const bfd_target tekhex_vec;
844 extern const bfd_target binary_vec;
845 extern const bfd_target ihex_vec;
847 /* All of the xvecs for core files. */
848 extern const bfd_target aix386_core_vec;
849 extern const bfd_target cisco_core_big_vec;
850 extern const bfd_target cisco_core_little_vec;
851 extern const bfd_target hppabsd_core_vec;
852 extern const bfd_target hpux_core_vec;
853 extern const bfd_target irix_core_vec;
854 extern const bfd_target netbsd_core_vec;
855 extern const bfd_target osf_core_vec;
856 extern const bfd_target ptrace_core_vec;
857 extern const bfd_target sco5_core_vec;
858 extern const bfd_target trad_core_vec;
860 extern const bfd_target bfd_elf32_am33lin_vec;
861 static const bfd_target * const _bfd_target_vector[] =
863 #ifdef SELECT_VECS
865 SELECT_VECS,
867 #else /* not SELECT_VECS */
869 #ifdef DEFAULT_VECTOR
870 &DEFAULT_VECTOR,
871 #endif
872 /* This list is alphabetized to make it easy to compare
873 with other vector lists -- the decls above and
874 the case statement in configure.in.
875 Vectors that don't compile on all systems, or aren't finished,
876 should have an entry here with #if 0 around it, to show that
877 it wasn't omitted by mistake. */
878 &a_out_adobe_vec,
879 #ifdef BFD64
880 &aix5coff64_vec,
881 #endif
882 &aout0_big_vec,
883 #if 0
884 /* We have no way of distinguishing these from other a.out variants. */
885 &aout_arm_big_vec,
886 &aout_arm_little_vec,
887 /* No one seems to use this. */
888 &aout_mips_big_vec,
889 #endif
890 &aout_mips_little_vec,
891 #if 0
892 &apollocoff_vec,
893 #endif
894 &arm_epoc_pe_big_vec,
895 &arm_epoc_pe_little_vec,
896 &arm_epoc_pei_big_vec,
897 &arm_epoc_pei_little_vec,
898 &arm_wince_pe_big_vec,
899 &arm_wince_pe_little_vec,
900 &arm_wince_pei_big_vec,
901 &arm_wince_pei_little_vec,
902 &armcoff_big_vec,
903 &armcoff_little_vec,
904 &armnetbsd_vec,
905 &armpe_big_vec,
906 &armpe_little_vec,
907 &armpei_big_vec,
908 &armpei_little_vec,
909 &b_out_vec_big_host,
910 &b_out_vec_little_host,
911 #ifdef BFD64
912 &bfd_pei_ia64_vec,
913 #endif
914 &bfd_elf32_avr_vec,
915 &bfd_elf32_bfin_vec,
916 &bfd_elf32_bfinfdpic_vec,
918 /* This, and other vectors, may not be used in any *.mt configuration.
919 But that does not mean they are unnecessary. If configured with
920 --enable-targets=all, objdump or gdb should be able to examine
921 the file even if we don't recognize the machine type. */
922 &bfd_elf32_big_generic_vec,
923 &bfd_elf32_bigarc_vec,
924 &bfd_elf32_bigarm_vec,
925 &bfd_elf32_bigarm_symbian_vec,
926 &bfd_elf32_bigarm_vxworks_vec,
927 &bfd_elf32_bigmips_vec,
928 &bfd_elf32_bigmips_vxworks_vec,
929 &bfd_elf32_cr16_vec,
930 &bfd_elf32_cr16c_vec,
931 &bfd_elf32_cris_vec,
932 &bfd_elf32_crx_vec,
933 &bfd_elf32_d10v_vec,
934 &bfd_elf32_d30v_vec,
935 &bfd_elf32_dlx_big_vec,
936 &bfd_elf32_fr30_vec,
937 &bfd_elf32_frv_vec,
938 &bfd_elf32_frvfdpic_vec,
939 &bfd_elf32_moxie_vec,
940 &bfd_elf32_h8300_vec,
941 &bfd_elf32_hppa_linux_vec,
942 &bfd_elf32_hppa_nbsd_vec,
943 &bfd_elf32_hppa_vec,
944 &bfd_elf32_i370_vec,
945 &bfd_elf32_i386_freebsd_vec,
946 &bfd_elf32_i386_sol2_vec,
947 &bfd_elf32_i386_vxworks_vec,
948 &bfd_elf32_i386_vec,
949 &bfd_elf32_i860_little_vec,
950 &bfd_elf32_i860_vec,
951 &bfd_elf32_i960_vec,
952 #if 0
953 &bfd_elf32_ia64_big_vec,
954 #endif
955 #ifdef BFD64
956 &bfd_elf32_ia64_hpux_big_vec,
957 #endif
958 &bfd_elf32_ip2k_vec,
959 &bfd_elf32_iq2000_vec,
960 &bfd_elf32_lm32_vec,
961 &bfd_elf32_little_generic_vec,
962 &bfd_elf32_littlearc_vec,
963 &bfd_elf32_littlearm_vec,
964 &bfd_elf32_littlearm_symbian_vec,
965 &bfd_elf32_littlearm_vxworks_vec,
966 &bfd_elf32_littlemips_vec,
967 &bfd_elf32_littlemips_vxworks_vec,
968 &bfd_elf32_m32c_vec,
969 &bfd_elf32_m32r_vec,
970 &bfd_elf32_m32rle_vec,
971 &bfd_elf32_m32rlin_vec,
972 &bfd_elf32_m32rlelin_vec,
973 &bfd_elf32_m68hc11_vec,
974 &bfd_elf32_m68hc12_vec,
975 &bfd_elf32_m68k_vec,
976 &bfd_elf32_m88k_vec,
977 &bfd_elf32_mcore_big_vec,
978 &bfd_elf32_mcore_little_vec,
979 &bfd_elf32_mep_vec,
980 &bfd_elf32_microblaze_vec,
981 &bfd_elf32_mn10200_vec,
982 &bfd_elf32_mn10300_vec,
983 &bfd_elf32_mt_vec,
984 &bfd_elf32_msp430_vec,
985 #ifdef BFD64
986 &bfd_elf32_nbigmips_vec,
987 &bfd_elf32_nlittlemips_vec,
988 &bfd_elf32_ntradbigmips_vec,
989 &bfd_elf32_ntradlittlemips_vec,
990 #endif
991 &bfd_elf32_openrisc_vec,
992 &bfd_elf32_or32_big_vec,
993 &bfd_elf32_pj_vec,
994 &bfd_elf32_pjl_vec,
995 &bfd_elf32_powerpc_vec,
996 &bfd_elf32_powerpc_vxworks_vec,
997 &bfd_elf32_powerpcle_vec,
998 &bfd_elf32_rx_be_vec,
999 &bfd_elf32_rx_le_vec,
1000 &bfd_elf32_s390_vec,
1001 #ifdef BFD64
1002 &bfd_elf32_bigscore_vec,
1003 &bfd_elf32_littlescore_vec,
1004 #endif
1005 &bfd_elf32_sh_vec,
1006 &bfd_elf32_shblin_vec,
1007 &bfd_elf32_shl_vec,
1008 &bfd_elf32_shl_symbian_vec,
1009 &bfd_elf32_shlin_vec,
1010 &bfd_elf32_shlnbsd_vec,
1011 &bfd_elf32_shlvxworks_vec,
1012 &bfd_elf32_shnbsd_vec,
1013 &bfd_elf32_shvxworks_vec,
1014 #ifdef BFD64
1015 &bfd_elf32_sh64_vec,
1016 &bfd_elf32_sh64l_vec,
1017 &bfd_elf32_sh64lnbsd_vec,
1018 &bfd_elf32_sh64nbsd_vec,
1019 &bfd_elf32_sh64lin_vec,
1020 &bfd_elf32_sh64blin_vec,
1021 #endif
1022 &bfd_elf32_sparc_vec,
1023 &bfd_elf32_sparc_vxworks_vec,
1024 &bfd_elf32_spu_vec,
1025 &bfd_elf32_tic6x_be_vec,
1026 &bfd_elf32_tic6x_le_vec,
1027 &bfd_elf32_tradbigmips_vec,
1028 &bfd_elf32_tradlittlemips_vec,
1029 &bfd_elf32_us_cris_vec,
1030 &bfd_elf32_v850_vec,
1031 &bfd_elf32_vax_vec,
1032 &bfd_elf32_xc16x_vec,
1033 &bfd_elf32_xstormy16_vec,
1034 &bfd_elf32_xtensa_be_vec,
1035 &bfd_elf32_xtensa_le_vec,
1036 #ifdef BFD64
1037 &bfd_elf64_alpha_freebsd_vec,
1038 &bfd_elf64_alpha_vec,
1039 &bfd_elf64_big_generic_vec,
1040 &bfd_elf64_bigmips_vec,
1041 &bfd_elf64_hppa_linux_vec,
1042 &bfd_elf64_hppa_vec,
1043 &bfd_elf64_ia64_big_vec,
1044 &bfd_elf64_ia64_hpux_big_vec,
1045 &bfd_elf64_ia64_little_vec,
1046 &bfd_elf64_ia64_vms_vec,
1047 &bfd_elf64_little_generic_vec,
1048 &bfd_elf64_littlemips_vec,
1049 &bfd_elf64_mmix_vec,
1050 &bfd_elf64_powerpc_vec,
1051 &bfd_elf64_powerpcle_vec,
1052 &bfd_elf64_s390_vec,
1053 &bfd_elf64_sh64_vec,
1054 &bfd_elf64_sh64l_vec,
1055 &bfd_elf64_sh64lnbsd_vec,
1056 &bfd_elf64_sh64nbsd_vec,
1057 &bfd_elf64_sh64lin_vec,
1058 &bfd_elf64_sh64blin_vec,
1059 &bfd_elf64_sparc_vec,
1060 &bfd_elf64_sparc_freebsd_vec,
1061 &bfd_elf64_tradbigmips_vec,
1062 &bfd_elf64_tradlittlemips_vec,
1063 &bfd_elf64_x86_64_freebsd_vec,
1064 &bfd_elf64_x86_64_sol2_vec,
1065 &bfd_elf64_x86_64_vec,
1066 &bfd_elf64_l1om_freebsd_vec,
1067 &bfd_elf64_l1om_vec,
1068 &bfd_mmo_vec,
1069 #endif
1070 &bfd_powerpc_pe_vec,
1071 &bfd_powerpc_pei_vec,
1072 &bfd_powerpcle_pe_vec,
1073 &bfd_powerpcle_pei_vec,
1074 &cris_aout_vec,
1075 #ifdef BFD64
1076 &demo_64_vec, /* Only compiled if host has long-long support. */
1077 #endif
1078 &ecoff_big_vec,
1079 &ecoff_biglittle_vec,
1080 &ecoff_little_vec,
1081 #ifdef BFD64
1082 &ecoffalpha_little_vec,
1083 #endif
1084 &go32coff_vec,
1085 &go32stubbedcoff_vec,
1086 &h8300coff_vec,
1087 &h8500coff_vec,
1088 #if 0
1089 /* Since a.out files lack decent magic numbers, no way to recognize
1090 which kind of a.out file it is. */
1091 &host_aout_vec,
1092 /* Clashes with sunos_big_vec magic no. */
1093 &hp300bsd_vec,
1094 #endif
1095 &hp300hpux_vec,
1096 &i386aout_vec,
1097 &i386bsd_vec,
1098 &i386coff_vec,
1099 #if 0
1100 &i386dynix_vec,
1101 #endif
1102 &i386freebsd_vec,
1103 #if 0
1104 /* Since a.out files lack decent magic numbers, no way to recognize
1105 which kind of a.out file it is. */
1106 &i386linux_vec,
1107 #endif
1108 &i386lynx_aout_vec,
1109 &i386lynx_coff_vec,
1110 #if 0
1111 /* No distinguishing features for Mach 3 executables. */
1112 &i386mach3_vec,
1113 #endif
1114 &i386msdos_vec,
1115 &i386netbsd_vec,
1116 &i386os9k_vec,
1117 &i386pe_vec,
1118 &i386pei_vec,
1119 #ifdef BFD64
1120 &x86_64coff_vec,
1121 &x86_64pe_vec,
1122 &x86_64pei_vec,
1123 #endif
1124 &i860coff_vec,
1125 &icoff_big_vec,
1126 &icoff_little_vec,
1127 &ieee_vec,
1128 #if 0
1129 &m68k4knetbsd_vec,
1130 &m68kaux_coff_vec,
1131 #endif
1132 &m68kcoff_vec,
1133 &m68kcoffun_vec,
1134 #if 0
1135 /* Since a.out files lack decent magic numbers, no way to recognize
1136 which kind of a.out file it is. */
1137 &m68klinux_vec,
1138 #endif
1139 &m68knetbsd_vec,
1140 &m68ksysvcoff_vec,
1141 &m88kbcs_vec,
1142 &m88kmach3_vec,
1143 &m88kopenbsd_vec,
1144 &mach_o_be_vec,
1145 &mach_o_le_vec,
1146 &mach_o_fat_vec,
1147 &mach_o_i386_vec,
1148 #ifdef BFD64
1149 &mach_o_x86_64_vec,
1150 #endif
1151 &maxqcoff_vec,
1152 &mcore_pe_big_vec,
1153 &mcore_pe_little_vec,
1154 &mcore_pei_big_vec,
1155 &mcore_pei_little_vec,
1156 &mipslpe_vec,
1157 &mipslpei_vec,
1158 &newsos3_vec,
1159 #ifdef BFD64
1160 &nlm32_alpha_vec,
1161 #endif
1162 &nlm32_i386_vec,
1163 &nlm32_powerpc_vec,
1164 &nlm32_sparc_vec,
1165 #if 0
1166 /* We have no oasys tools anymore, so we can't test any of this
1167 anymore. If you want to test the stuff yourself, go ahead...
1168 steve@cygnus.com
1169 Worse, since there is no magic number for archives, there
1170 can be annoying target mis-matches. */
1171 &oasys_vec,
1172 #endif
1173 /* Entry for the OpenRISC family. */
1174 &or32coff_big_vec,
1176 &pc532machaout_vec,
1177 &pc532netbsd_vec,
1178 &pdp11_aout_vec,
1179 &pef_vec,
1180 &pef_xlib_vec,
1181 #if BFD_SUPPORTS_PLUGINS
1182 &plugin_vec,
1183 #endif
1184 #if 0
1185 /* This has the same magic number as RS/6000. */
1186 &pmac_xcoff_vec,
1187 #endif
1188 &ppcboot_vec,
1189 #if 0
1190 /* We have no way of distinguishing these from other a.out variants. */
1191 &riscix_vec,
1192 #endif
1193 #ifdef BFD64
1194 &rs6000coff64_vec,
1195 #endif
1196 &rs6000coff_vec,
1197 &shcoff_small_vec,
1198 &shcoff_vec,
1199 &shlcoff_small_vec,
1200 &shlcoff_vec,
1201 &shlpe_vec,
1202 &shlpei_vec,
1203 #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF)
1204 &som_vec,
1205 #endif
1206 &sparccoff_vec,
1207 &sparcle_aout_vec,
1208 &sparclinux_vec,
1209 &sparclynx_aout_vec,
1210 &sparclynx_coff_vec,
1211 &sparcnetbsd_vec,
1212 &sunos_big_vec,
1213 &sym_vec,
1214 &tic30_aout_vec,
1215 &tic30_coff_vec,
1216 &tic54x_coff0_beh_vec,
1217 &tic54x_coff0_vec,
1218 &tic54x_coff1_beh_vec,
1219 &tic54x_coff1_vec,
1220 &tic54x_coff2_beh_vec,
1221 &tic54x_coff2_vec,
1222 &tic80coff_vec,
1223 &vaxbsd_vec,
1224 &vaxnetbsd_vec,
1225 &vax1knetbsd_vec,
1226 &versados_vec,
1227 #ifdef BFD64
1228 &vms_alpha_vec,
1229 #endif
1230 &vms_lib_txt_vec,
1231 &w65_vec,
1232 &we32kcoff_vec,
1233 &z80coff_vec,
1234 &z8kcoff_vec,
1235 &bfd_elf32_am33lin_vec,
1236 #endif /* not SELECT_VECS */
1238 /* Always support S-records, for convenience. */
1239 &srec_vec,
1240 &symbolsrec_vec,
1241 /* And verilog. */
1242 &verilog_vec,
1243 /* And tekhex */
1244 &tekhex_vec,
1245 /* Likewise for binary output. */
1246 &binary_vec,
1247 /* Likewise for ihex. */
1248 &ihex_vec,
1250 /* Add any required traditional-core-file-handler. */
1252 #ifdef AIX386_CORE
1253 &aix386_core_vec,
1254 #endif
1255 #if 0
1256 /* We don't include cisco_core_*_vec. Although it has a magic number,
1257 the magic number isn't at the beginning of the file, and thus
1258 might spuriously match other kinds of files. */
1259 &cisco_core_big_vec,
1260 &cisco_core_little_vec,
1261 #endif
1262 #ifdef HPPABSD_CORE
1263 &hppabsd_core_vec,
1264 #endif
1265 #ifdef HPUX_CORE
1266 &hpux_core_vec,
1267 #endif
1268 #ifdef IRIX_CORE
1269 &irix_core_vec,
1270 #endif
1271 #ifdef NETBSD_CORE
1272 &netbsd_core_vec,
1273 #endif
1274 #ifdef OSF_CORE
1275 &osf_core_vec,
1276 #endif
1277 #ifdef PTRACE_CORE
1278 &ptrace_core_vec,
1279 #endif
1280 #ifdef SCO5_CORE
1281 &sco5_core_vec,
1282 #endif
1283 #ifdef TRAD_CORE
1284 &trad_core_vec,
1285 #endif
1287 NULL /* end of list marker */
1289 const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1291 /* bfd_default_vector[0] contains either the address of the default vector,
1292 if there is one, or zero if there isn't. */
1294 const bfd_target *bfd_default_vector[] = {
1295 #ifdef DEFAULT_VECTOR
1296 &DEFAULT_VECTOR,
1297 #endif
1298 NULL
1301 /* bfd_associated_vector[] contains the associated target vectors used
1302 to reduce the ambiguity in bfd_check_format_matches. */
1304 static const bfd_target *_bfd_associated_vector[] = {
1305 #ifdef ASSOCIATED_VECS
1306 ASSOCIATED_VECS,
1307 #endif
1308 NULL
1310 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector;
1312 /* When there is an ambiguous match, bfd_check_format_matches puts the
1313 names of the matching targets in an array. This variable is the maximum
1314 number of entries that the array could possibly need. */
1315 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1317 /* This array maps configuration triplets onto BFD vectors. */
1319 struct targmatch
1321 /* The configuration triplet. */
1322 const char *triplet;
1323 /* The BFD vector. If this is NULL, then the vector is found by
1324 searching forward for the next structure with a non NULL vector
1325 field. */
1326 const bfd_target *vector;
1329 /* targmatch.h is built by Makefile out of config.bfd. */
1330 static const struct targmatch bfd_target_match[] = {
1331 #include "targmatch.h"
1332 { NULL, NULL }
1335 /* Find a target vector, given a name or configuration triplet. */
1337 static const bfd_target *
1338 find_target (const char *name)
1340 const bfd_target * const *target;
1341 const struct targmatch *match;
1343 for (target = &bfd_target_vector[0]; *target != NULL; target++)
1344 if (strcmp (name, (*target)->name) == 0)
1345 return *target;
1347 /* If we couldn't match on the exact name, try matching on the
1348 configuration triplet. FIXME: We should run the triplet through
1349 config.sub first, but that is hard. */
1350 for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1352 if (fnmatch (match->triplet, name, 0) == 0)
1354 while (match->vector == NULL)
1355 ++match;
1356 return match->vector;
1360 bfd_set_error (bfd_error_invalid_target);
1361 return NULL;
1365 FUNCTION
1366 bfd_set_default_target
1368 SYNOPSIS
1369 bfd_boolean bfd_set_default_target (const char *name);
1371 DESCRIPTION
1372 Set the default target vector to use when recognizing a BFD.
1373 This takes the name of the target, which may be a BFD target
1374 name or a configuration triplet.
1377 bfd_boolean
1378 bfd_set_default_target (const char *name)
1380 const bfd_target *target;
1382 if (bfd_default_vector[0] != NULL
1383 && strcmp (name, bfd_default_vector[0]->name) == 0)
1384 return TRUE;
1386 target = find_target (name);
1387 if (target == NULL)
1388 return FALSE;
1390 bfd_default_vector[0] = target;
1391 return TRUE;
1395 FUNCTION
1396 bfd_find_target
1398 SYNOPSIS
1399 const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
1401 DESCRIPTION
1402 Return a pointer to the transfer vector for the object target
1403 named @var{target_name}. If @var{target_name} is <<NULL>>,
1404 choose the one in the environment variable <<GNUTARGET>>; if
1405 that is null or not defined, then choose the first entry in the
1406 target list. Passing in the string "default" or setting the
1407 environment variable to "default" will cause the first entry in
1408 the target list to be returned, and "target_defaulted" will be
1409 set in the BFD if @var{abfd} isn't <<NULL>>. This causes
1410 <<bfd_check_format>> to loop over all the targets to find the
1411 one that matches the file being read.
1414 const bfd_target *
1415 bfd_find_target (const char *target_name, bfd *abfd)
1417 const char *targname;
1418 const bfd_target *target;
1420 if (target_name != NULL)
1421 targname = target_name;
1422 else
1423 targname = getenv ("GNUTARGET");
1425 /* This is safe; the vector cannot be null. */
1426 if (targname == NULL || strcmp (targname, "default") == 0)
1428 if (bfd_default_vector[0] != NULL)
1429 target = bfd_default_vector[0];
1430 else
1431 target = bfd_target_vector[0];
1432 if (abfd)
1434 abfd->xvec = target;
1435 abfd->target_defaulted = TRUE;
1437 return target;
1440 if (abfd)
1441 abfd->target_defaulted = FALSE;
1443 target = find_target (targname);
1444 if (target == NULL)
1445 return NULL;
1447 if (abfd)
1448 abfd->xvec = target;
1449 return target;
1452 /* Helper function for bfd_get_target_info to determine the target's
1453 architecture. This method handles bfd internal target names as
1454 tuples and triplets. */
1455 static bfd_boolean
1456 _bfd_find_arch_match (const char *tname, const char **arch,
1457 const char **def_target_arch)
1459 if (!arch)
1460 return FALSE;
1462 while (*arch != NULL)
1464 const char *in_a = strstr (*arch, tname);
1465 char end_ch = (in_a ? in_a[strlen (tname)] : 0);
1467 if (in_a && (in_a == *arch || in_a[-1] == ':')
1468 && end_ch == 0)
1470 *def_target_arch = *arch;
1471 return TRUE;
1473 arch++;
1475 return FALSE;
1479 FUNCTION
1480 bfd_get_target_info
1481 SYNOPSIS
1482 const bfd_target *bfd_get_target_info (const char *target_name,
1483 bfd *abfd,
1484 bfd_boolean *is_bigendian,
1485 int *underscoring,
1486 const char **def_target_arch);
1487 DESCRIPTION
1488 Return a pointer to the transfer vector for the object target
1489 named @var{target_name}. If @var{target_name} is <<NULL>>,
1490 choose the one in the environment variable <<GNUTARGET>>; if
1491 that is null or not defined, then choose the first entry in the
1492 target list. Passing in the string "default" or setting the
1493 environment variable to "default" will cause the first entry in
1494 the target list to be returned, and "target_defaulted" will be
1495 set in the BFD if @var{abfd} isn't <<NULL>>. This causes
1496 <<bfd_check_format>> to loop over all the targets to find the
1497 one that matches the file being read.
1498 If @var{is_bigendian} is not <<NULL>>, then set this value to target's
1499 endian mode. True for big-endian, FALSE for little-endian or for
1500 invalid target.
1501 If @var{underscoring} is not <<NULL>>, then set this value to target's
1502 underscoring mode. Zero for none-underscoring, -1 for invalid target,
1503 else the value of target vector's symbol underscoring.
1504 If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
1505 string specified by the target_name.
1507 const bfd_target *
1508 bfd_get_target_info (const char *target_name, bfd *abfd,
1509 bfd_boolean *is_bigendian,
1510 int *underscoring, const char **def_target_arch)
1512 const bfd_target *target_vec;
1514 if (is_bigendian)
1515 *is_bigendian = FALSE;
1516 if (underscoring)
1517 *underscoring = -1;
1518 if (def_target_arch)
1519 *def_target_arch = NULL;
1520 target_vec = bfd_find_target (target_name, abfd);
1521 if (! target_vec)
1522 return NULL;
1523 if (is_bigendian)
1524 *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE
1525 : FALSE);
1526 if (underscoring)
1527 *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
1529 if (def_target_arch)
1531 const char *tname = target_vec->name;
1532 const char **arches = bfd_arch_list ();
1534 if (arches && tname)
1536 char *hyp = strchr (tname, '-');
1538 if (hyp != NULL)
1540 tname = ++hyp;
1542 /* Make sure we detect architecture names
1543 for triplets like "pe-arm-wince-little". */
1544 if (!_bfd_find_arch_match (tname, arches, def_target_arch))
1546 char new_tname[50];
1548 strcpy (new_tname, hyp);
1549 while ((hyp = strrchr (new_tname, '-')) != NULL)
1551 *hyp = 0;
1552 if (_bfd_find_arch_match (new_tname, arches,
1553 def_target_arch))
1554 break;
1558 else
1559 _bfd_find_arch_match (tname, arches, def_target_arch);
1562 if (arches)
1563 free (arches);
1565 return target_vec;
1569 FUNCTION
1570 bfd_target_list
1572 SYNOPSIS
1573 const char ** bfd_target_list (void);
1575 DESCRIPTION
1576 Return a freshly malloced NULL-terminated
1577 vector of the names of all the valid BFD targets. Do not
1578 modify the names.
1582 const char **
1583 bfd_target_list (void)
1585 int vec_length = 0;
1586 bfd_size_type amt;
1587 #if defined (HOST_HPPAHPUX) && ! defined (__STDC__)
1588 /* The native compiler on the HP9000/700 has a bug which causes it
1589 to loop endlessly when compiling this file. This avoids it. */
1590 volatile
1591 #endif
1592 const bfd_target * const *target;
1593 const char **name_list, **name_ptr;
1595 for (target = &bfd_target_vector[0]; *target != NULL; target++)
1596 vec_length++;
1598 amt = (vec_length + 1) * sizeof (char **);
1599 name_ptr = name_list = (const char **) bfd_malloc (amt);
1601 if (name_list == NULL)
1602 return NULL;
1604 for (target = &bfd_target_vector[0]; *target != NULL; target++)
1605 if (target == &bfd_target_vector[0]
1606 || *target != bfd_target_vector[0])
1607 *name_ptr++ = (*target)->name;
1609 *name_ptr = NULL;
1610 return name_list;
1614 FUNCTION
1615 bfd_seach_for_target
1617 SYNOPSIS
1618 const bfd_target *bfd_search_for_target
1619 (int (*search_func) (const bfd_target *, void *),
1620 void *);
1622 DESCRIPTION
1623 Return a pointer to the first transfer vector in the list of
1624 transfer vectors maintained by BFD that produces a non-zero
1625 result when passed to the function @var{search_func}. The
1626 parameter @var{data} is passed, unexamined, to the search
1627 function.
1630 const bfd_target *
1631 bfd_search_for_target (int (*search_func) (const bfd_target *, void *),
1632 void *data)
1634 const bfd_target * const *target;
1636 for (target = bfd_target_vector; *target != NULL; target ++)
1637 if (search_func (*target, data))
1638 return *target;
1640 return NULL;