xref: /netbsd-src/external/gpl3/gdb/dist/bfd/targets.c (revision bdc22b2e01993381dcefeff2bc9b56ca75a4235c)
1 /* Generic target-file-type support for the BFD library.
2    Copyright (C) 1990-2017 Free Software Foundation, Inc.
3    Written by Cygnus Support.
4 
5    This file is part of BFD, the Binary File Descriptor library.
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3 of the License, or
10    (at your option) any later version.
11 
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software
19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20    MA 02110-1301, USA.  */
21 
22 #include "sysdep.h"
23 #include "bfd.h"
24 #include "libbfd.h"
25 #include "fnmatch.h"
26 
27 /*
28    It's okay to see some:
29 #if 0
30    directives in this source file, as targets.c uses them to exclude
31    certain BFD vectors.  This comment is specially formatted to catch
32    users who grep for ^#if 0, so please keep it this way!
33 */
34 
35 /*
36 SECTION
37 	Targets
38 
39 DESCRIPTION
40 	Each port of BFD to a different machine requires the creation
41 	of a target back end. All the back end provides to the root
42 	part of BFD is a structure containing pointers to functions
43 	which perform certain low level operations on files. BFD
44 	translates the applications's requests through a pointer into
45 	calls to the back end routines.
46 
47 	When a file is opened with <<bfd_openr>>, its format and
48 	target are unknown. BFD uses various mechanisms to determine
49 	how to interpret the file. The operations performed are:
50 
51 	o Create a BFD by calling the internal routine
52 	<<_bfd_new_bfd>>, then call <<bfd_find_target>> with the
53 	target string supplied to <<bfd_openr>> and the new BFD pointer.
54 
55 	o If a null target string was provided to <<bfd_find_target>>,
56 	look up the environment variable <<GNUTARGET>> and use
57 	that as the target string.
58 
59 	o If the target string is still <<NULL>>, or the target string is
60 	<<default>>, then use the first item in the target vector
61 	as the target type, and set <<target_defaulted>> in the BFD to
62 	cause <<bfd_check_format>> to loop through all the targets.
63 	@xref{bfd_target}.  @xref{Formats}.
64 
65 	o Otherwise, inspect the elements in the target vector
66 	one by one, until a match on target name is found. When found,
67 	use it.
68 
69 	o Otherwise return the error <<bfd_error_invalid_target>> to
70 	<<bfd_openr>>.
71 
72 	o <<bfd_openr>> attempts to open the file using
73 	<<bfd_open_file>>, and returns the BFD.
74 
75 	Once the BFD has been opened and the target selected, the file
76 	format may be determined. This is done by calling
77 	<<bfd_check_format>> on the BFD with a suggested format.
78 	If <<target_defaulted>> has been set, each possible target
79 	type is tried to see if it recognizes the specified format.
80 	<<bfd_check_format>> returns <<TRUE>> when the caller guesses right.
81 @menu
82 @* bfd_target::
83 @end menu
84 */
85 
86 /*
87 
88 INODE
89 	bfd_target,  , Targets, Targets
90 DOCDD
91 SUBSECTION
92 	bfd_target
93 
94 DESCRIPTION
95 	This structure contains everything that BFD knows about a
96 	target. It includes things like its byte order, name, and which
97 	routines to call to do various operations.
98 
99 	Every BFD points to a target structure with its <<xvec>>
100 	member.
101 
102 	The macros below are used to dispatch to functions through the
103 	<<bfd_target>> vector. They are used in a number of macros further
104 	down in @file{bfd.h}, and are also used when calling various
105 	routines by hand inside the BFD implementation.  The @var{arglist}
106 	argument must be parenthesized; it contains all the arguments
107 	to the called function.
108 
109 	They make the documentation (more) unpleasant to read, so if
110 	someone wants to fix this and not break the above, please do.
111 
112 .#define BFD_SEND(bfd, message, arglist) \
113 .  ((*((bfd)->xvec->message)) arglist)
114 .
115 .#ifdef DEBUG_BFD_SEND
116 .#undef BFD_SEND
117 .#define BFD_SEND(bfd, message, arglist) \
118 .  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
119 .    ((*((bfd)->xvec->message)) arglist) : \
120 .    (bfd_assert (__FILE__,__LINE__), NULL))
121 .#endif
122 
123 	For operations which index on the BFD format:
124 
125 .#define BFD_SEND_FMT(bfd, message, arglist) \
126 .  (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)
127 .
128 .#ifdef DEBUG_BFD_SEND
129 .#undef BFD_SEND_FMT
130 .#define BFD_SEND_FMT(bfd, message, arglist) \
131 .  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
132 .   (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
133 .   (bfd_assert (__FILE__,__LINE__), NULL))
134 .#endif
135 .
136 	This is the structure which defines the type of BFD this is.  The
137 	<<xvec>> member of the struct <<bfd>> itself points here.  Each
138 	module that implements access to a different target under BFD,
139 	defines one of these.
140 
141 	FIXME, these names should be rationalised with the names of
142 	the entry points which call them. Too bad we can't have one
143 	macro to define them both!
144 
145 .enum bfd_flavour
146 .{
147 .  {* N.B. Update bfd_flavour_name if you change this.  *}
148 .  bfd_target_unknown_flavour,
149 .  bfd_target_aout_flavour,
150 .  bfd_target_coff_flavour,
151 .  bfd_target_ecoff_flavour,
152 .  bfd_target_xcoff_flavour,
153 .  bfd_target_elf_flavour,
154 .  bfd_target_ieee_flavour,
155 .  bfd_target_nlm_flavour,
156 .  bfd_target_oasys_flavour,
157 .  bfd_target_tekhex_flavour,
158 .  bfd_target_srec_flavour,
159 .  bfd_target_verilog_flavour,
160 .  bfd_target_ihex_flavour,
161 .  bfd_target_som_flavour,
162 .  bfd_target_os9k_flavour,
163 .  bfd_target_versados_flavour,
164 .  bfd_target_msdos_flavour,
165 .  bfd_target_ovax_flavour,
166 .  bfd_target_evax_flavour,
167 .  bfd_target_mmo_flavour,
168 .  bfd_target_mach_o_flavour,
169 .  bfd_target_pef_flavour,
170 .  bfd_target_pef_xlib_flavour,
171 .  bfd_target_sym_flavour
172 .};
173 .
174 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
175 .
176 .{* Forward declaration.  *}
177 .typedef struct bfd_link_info _bfd_link_info;
178 .
179 .{* Forward declaration.  *}
180 .typedef struct flag_info flag_info;
181 .
182 .typedef struct bfd_target
183 .{
184 .  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
185 .  char *name;
186 .
187 . {* The "flavour" of a back end is a general indication about
188 .    the contents of a file.  *}
189 .  enum bfd_flavour flavour;
190 .
191 .  {* The order of bytes within the data area of a file.  *}
192 .  enum bfd_endian byteorder;
193 .
194 . {* The order of bytes within the header parts of a file.  *}
195 .  enum bfd_endian header_byteorder;
196 .
197 .  {* A mask of all the flags which an executable may have set -
198 .     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
199 .  flagword object_flags;
200 .
201 . {* A mask of all the flags which a section may have set - from
202 .    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
203 .  flagword section_flags;
204 .
205 . {* The character normally found at the front of a symbol.
206 .    (if any), perhaps `_'.  *}
207 .  char symbol_leading_char;
208 .
209 . {* The pad character for file names within an archive header.  *}
210 .  char ar_pad_char;
211 .
212 .  {* The maximum number of characters in an archive header.  *}
213 .  unsigned char ar_max_namelen;
214 .
215 .  {* How well this target matches, used to select between various
216 .     possible targets when more than one target matches.  *}
217 .  unsigned char match_priority;
218 .
219 .  {* Entries for byte swapping for data. These are different from the
220 .     other entry points, since they don't take a BFD as the first argument.
221 .     Certain other handlers could do the same.  *}
222 .  bfd_uint64_t   (*bfd_getx64) (const void *);
223 .  bfd_int64_t    (*bfd_getx_signed_64) (const void *);
224 .  void           (*bfd_putx64) (bfd_uint64_t, void *);
225 .  bfd_vma        (*bfd_getx32) (const void *);
226 .  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
227 .  void           (*bfd_putx32) (bfd_vma, void *);
228 .  bfd_vma        (*bfd_getx16) (const void *);
229 .  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
230 .  void           (*bfd_putx16) (bfd_vma, void *);
231 .
232 .  {* Byte swapping for the headers.  *}
233 .  bfd_uint64_t   (*bfd_h_getx64) (const void *);
234 .  bfd_int64_t    (*bfd_h_getx_signed_64) (const void *);
235 .  void           (*bfd_h_putx64) (bfd_uint64_t, void *);
236 .  bfd_vma        (*bfd_h_getx32) (const void *);
237 .  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
238 .  void           (*bfd_h_putx32) (bfd_vma, void *);
239 .  bfd_vma        (*bfd_h_getx16) (const void *);
240 .  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
241 .  void           (*bfd_h_putx16) (bfd_vma, void *);
242 .
243 .  {* Format dependent routines: these are vectors of entry points
244 .     within the target vector structure, one for each format to check.  *}
245 .
246 .  {* Check the format of a file being read.  Return a <<bfd_target *>> or zero.  *}
247 .  const struct bfd_target *(*_bfd_check_format[bfd_type_end]) (bfd *);
248 .
249 .  {* Set the format of a file being written.  *}
250 .  bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *);
251 .
252 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
253 .  bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *);
254 .
255 The general target vector.  These vectors are initialized using the
256 BFD_JUMP_TABLE macros.
257 .
258 .  {* Generic entry points.  *}
259 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
260 .  NAME##_close_and_cleanup, \
261 .  NAME##_bfd_free_cached_info, \
262 .  NAME##_new_section_hook, \
263 .  NAME##_get_section_contents, \
264 .  NAME##_get_section_contents_in_window
265 .
266 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
267 .  bfd_boolean (*_close_and_cleanup) (bfd *);
268 .  {* Ask the BFD to free all cached information.  *}
269 .  bfd_boolean (*_bfd_free_cached_info) (bfd *);
270 .  {* Called when a new section is created.  *}
271 .  bfd_boolean (*_new_section_hook) (bfd *, sec_ptr);
272 .  {* Read the contents of a section.  *}
273 .  bfd_boolean (*_bfd_get_section_contents)
274 .    (bfd *, sec_ptr, void *, file_ptr, bfd_size_type);
275 .  bfd_boolean (*_bfd_get_section_contents_in_window)
276 .    (bfd *, sec_ptr, bfd_window *, file_ptr, bfd_size_type);
277 .
278 .  {* Entry points to copy private data.  *}
279 .#define BFD_JUMP_TABLE_COPY(NAME) \
280 .  NAME##_bfd_copy_private_bfd_data, \
281 .  NAME##_bfd_merge_private_bfd_data, \
282 .  _bfd_generic_init_private_section_data, \
283 .  NAME##_bfd_copy_private_section_data, \
284 .  NAME##_bfd_copy_private_symbol_data, \
285 .  NAME##_bfd_copy_private_header_data, \
286 .  NAME##_bfd_set_private_flags, \
287 .  NAME##_bfd_print_private_bfd_data
288 .
289 .  {* Called to copy BFD general private data from one object file
290 .     to another.  *}
291 .  bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
292 .  {* Called to merge BFD general private data from one object file
293 .     to a common output file when linking.  *}
294 .  bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, struct bfd_link_info *);
295 .  {* Called to initialize BFD private section data from one object file
296 .     to another.  *}
297 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
298 .  BFD_SEND (obfd, _bfd_init_private_section_data, (ibfd, isec, obfd, osec, link_info))
299 .  bfd_boolean (*_bfd_init_private_section_data)
300 .    (bfd *, sec_ptr, bfd *, sec_ptr, struct bfd_link_info *);
301 .  {* Called to copy BFD private section data from one object file
302 .     to another.  *}
303 .  bfd_boolean (*_bfd_copy_private_section_data)
304 .    (bfd *, sec_ptr, bfd *, sec_ptr);
305 .  {* Called to copy BFD private symbol data from one symbol
306 .     to another.  *}
307 .  bfd_boolean (*_bfd_copy_private_symbol_data)
308 .    (bfd *, asymbol *, bfd *, asymbol *);
309 .  {* Called to copy BFD private header data from one object file
310 .     to another.  *}
311 .  bfd_boolean (*_bfd_copy_private_header_data)
312 .    (bfd *, bfd *);
313 .  {* Called to set private backend flags.  *}
314 .  bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword);
315 .
316 .  {* Called to print private BFD data.  *}
317 .  bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *);
318 .
319 .  {* Core file entry points.  *}
320 .#define BFD_JUMP_TABLE_CORE(NAME) \
321 .  NAME##_core_file_failing_command, \
322 .  NAME##_core_file_failing_signal, \
323 .  NAME##_core_file_matches_executable_p, \
324 .  NAME##_core_file_pid
325 .
326 .  char *      (*_core_file_failing_command) (bfd *);
327 .  int         (*_core_file_failing_signal) (bfd *);
328 .  bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *);
329 .  int         (*_core_file_pid) (bfd *);
330 .
331 .  {* Archive entry points.  *}
332 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
333 .  NAME##_slurp_armap, \
334 .  NAME##_slurp_extended_name_table, \
335 .  NAME##_construct_extended_name_table, \
336 .  NAME##_truncate_arname, \
337 .  NAME##_write_armap, \
338 .  NAME##_read_ar_hdr, \
339 .  NAME##_write_ar_hdr, \
340 .  NAME##_openr_next_archived_file, \
341 .  NAME##_get_elt_at_index, \
342 .  NAME##_generic_stat_arch_elt, \
343 .  NAME##_update_armap_timestamp
344 .
345 .  bfd_boolean (*_bfd_slurp_armap) (bfd *);
346 .  bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *);
347 .  bfd_boolean (*_bfd_construct_extended_name_table)
348 .    (bfd *, char **, bfd_size_type *, const char **);
349 .  void        (*_bfd_truncate_arname) (bfd *, const char *, char *);
350 .  bfd_boolean (*write_armap)
351 .    (bfd *, unsigned int, struct orl *, unsigned int, int);
352 .  void *      (*_bfd_read_ar_hdr_fn) (bfd *);
353 .  bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
354 .  bfd *       (*openr_next_archived_file) (bfd *, bfd *);
355 .#define bfd_get_elt_at_index(b,i) BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
356 .  bfd *       (*_bfd_get_elt_at_index) (bfd *, symindex);
357 .  int         (*_bfd_stat_arch_elt) (bfd *, struct stat *);
358 .  bfd_boolean (*_bfd_update_armap_timestamp) (bfd *);
359 .
360 .  {* Entry points used for symbols.  *}
361 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
362 .  NAME##_get_symtab_upper_bound, \
363 .  NAME##_canonicalize_symtab, \
364 .  NAME##_make_empty_symbol, \
365 .  NAME##_print_symbol, \
366 .  NAME##_get_symbol_info, \
367 .  NAME##_get_symbol_version_string, \
368 .  NAME##_bfd_is_local_label_name, \
369 .  NAME##_bfd_is_target_special_symbol, \
370 .  NAME##_get_lineno, \
371 .  NAME##_find_nearest_line, \
372 .  NAME##_find_line, \
373 .  NAME##_find_inliner_info, \
374 .  NAME##_bfd_make_debug_symbol, \
375 .  NAME##_read_minisymbols, \
376 .  NAME##_minisymbol_to_symbol
377 .
378 .  long        (*_bfd_get_symtab_upper_bound) (bfd *);
379 .  long        (*_bfd_canonicalize_symtab)
380 .    (bfd *, struct bfd_symbol **);
381 .  struct bfd_symbol *
382 .              (*_bfd_make_empty_symbol) (bfd *);
383 .  void        (*_bfd_print_symbol)
384 .    (bfd *, void *, struct bfd_symbol *, bfd_print_symbol_type);
385 .#define bfd_print_symbol(b,p,s,e) BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
386 .  void        (*_bfd_get_symbol_info)
387 .    (bfd *, struct bfd_symbol *, symbol_info *);
388 .#define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
389 .  const char *(*_bfd_get_symbol_version_string)
390 .    (bfd *, struct bfd_symbol *, bfd_boolean *);
391 .#define bfd_get_symbol_version_string(b,s,h) BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,h))
392 .  bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
393 .  bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
394 .  alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
395 .  bfd_boolean (*_bfd_find_nearest_line)
396 .    (bfd *, struct bfd_symbol **, struct bfd_section *, bfd_vma,
397 .     const char **, const char **, unsigned int *, unsigned int *);
398 .  bfd_boolean (*_bfd_find_line)
399 .    (bfd *, struct bfd_symbol **, struct bfd_symbol *,
400 .     const char **, unsigned int *);
401 .  bfd_boolean (*_bfd_find_inliner_info)
402 .    (bfd *, const char **, const char **, unsigned int *);
403 . {* Back-door to allow format-aware applications to create debug symbols
404 .    while using BFD for everything else.  Currently used by the assembler
405 .    when creating COFF files.  *}
406 .  asymbol *   (*_bfd_make_debug_symbol)
407 .    (bfd *, void *, unsigned long size);
408 .#define bfd_read_minisymbols(b, d, m, s) \
409 .  BFD_SEND (b, _read_minisymbols, (b, d, m, s))
410 .  long        (*_read_minisymbols)
411 .    (bfd *, bfd_boolean, void **, unsigned int *);
412 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
413 .  BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
414 .  asymbol *   (*_minisymbol_to_symbol)
415 .    (bfd *, bfd_boolean, const void *, asymbol *);
416 .
417 .  {* Routines for relocs.  *}
418 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
419 .  NAME##_get_reloc_upper_bound, \
420 .  NAME##_canonicalize_reloc, \
421 .  NAME##_bfd_reloc_type_lookup, \
422 .  NAME##_bfd_reloc_name_lookup
423 .
424 .  long        (*_get_reloc_upper_bound) (bfd *, sec_ptr);
425 .  long        (*_bfd_canonicalize_reloc)
426 .    (bfd *, sec_ptr, arelent **, struct bfd_symbol **);
427 .  {* See documentation on reloc types.  *}
428 .  reloc_howto_type *
429 .              (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
430 .  reloc_howto_type *
431 .              (*reloc_name_lookup) (bfd *, const char *);
432 .
433 .
434 .  {* Routines used when writing an object file.  *}
435 .#define BFD_JUMP_TABLE_WRITE(NAME) \
436 .  NAME##_set_arch_mach, \
437 .  NAME##_set_section_contents
438 .
439 .  bfd_boolean (*_bfd_set_arch_mach)
440 .    (bfd *, enum bfd_architecture, unsigned long);
441 .  bfd_boolean (*_bfd_set_section_contents)
442 .    (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type);
443 .
444 .  {* Routines used by the linker.  *}
445 .#define BFD_JUMP_TABLE_LINK(NAME) \
446 .  NAME##_sizeof_headers, \
447 .  NAME##_bfd_get_relocated_section_contents, \
448 .  NAME##_bfd_relax_section, \
449 .  NAME##_bfd_link_hash_table_create, \
450 .  NAME##_bfd_link_add_symbols, \
451 .  NAME##_bfd_link_just_syms, \
452 .  NAME##_bfd_copy_link_hash_symbol_type, \
453 .  NAME##_bfd_final_link, \
454 .  NAME##_bfd_link_split_section, \
455 .  NAME##_bfd_link_check_relocs, \
456 .  NAME##_bfd_gc_sections, \
457 .  NAME##_bfd_lookup_section_flags, \
458 .  NAME##_bfd_merge_sections, \
459 .  NAME##_bfd_is_group_section, \
460 .  NAME##_bfd_discard_group, \
461 .  NAME##_section_already_linked, \
462 .  NAME##_bfd_define_common_symbol
463 .
464 .  int         (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
465 .  bfd_byte *  (*_bfd_get_relocated_section_contents)
466 .    (bfd *, struct bfd_link_info *, struct bfd_link_order *,
467 .     bfd_byte *, bfd_boolean, struct bfd_symbol **);
468 .
469 .  bfd_boolean (*_bfd_relax_section)
470 .    (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
471 .
472 .  {* Create a hash table for the linker.  Different backends store
473 .     different information in this table.  *}
474 .  struct bfd_link_hash_table *
475 .              (*_bfd_link_hash_table_create) (bfd *);
476 .
477 .  {* Add symbols from this object file into the hash table.  *}
478 .  bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
479 .
480 .  {* Indicate that we are only retrieving symbol values from this section.  *}
481 .  void        (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
482 .
483 .  {* Copy the symbol type and other attributes for a linker script
484 .     assignment of one symbol to another.  *}
485 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
486 .  BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
487 .  void (*_bfd_copy_link_hash_symbol_type)
488 .    (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
489 .
490 .  {* Do a link based on the link_order structures attached to each
491 .     section of the BFD.  *}
492 .  bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);
493 .
494 .  {* Should this section be split up into smaller pieces during linking.  *}
495 .  bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);
496 .
497 .  {* Check the relocations in the bfd for validity.  *}
498 .  bfd_boolean (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *);
499 .
500 .  {* Remove sections that are not referenced from the output.  *}
501 .  bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
502 .
503 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
504 .  bfd_boolean (*_bfd_lookup_section_flags) (struct bfd_link_info *,
505 .					     struct flag_info *,
506 .					     asection *);
507 .
508 .  {* Attempt to merge SEC_MERGE sections.  *}
509 .  bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
510 .
511 .  {* Is this section a member of a group?  *}
512 .  bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
513 .
514 .  {* Discard members of a group.  *}
515 .  bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *);
516 .
517 .  {* Check if SEC has been already linked during a reloceatable or
518 .     final link.  *}
519 .  bfd_boolean (*_section_already_linked) (bfd *, asection *,
520 .					   struct bfd_link_info *);
521 .
522 .  {* Define a common symbol.  *}
523 .  bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
524 .					     struct bfd_link_hash_entry *);
525 .
526 .  {* Routines to handle dynamic symbols and relocs.  *}
527 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
528 .  NAME##_get_dynamic_symtab_upper_bound, \
529 .  NAME##_canonicalize_dynamic_symtab, \
530 .  NAME##_get_synthetic_symtab, \
531 .  NAME##_get_dynamic_reloc_upper_bound, \
532 .  NAME##_canonicalize_dynamic_reloc
533 .
534 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
535 .  long        (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
536 .  {* Read in the dynamic symbols.  *}
537 .  long        (*_bfd_canonicalize_dynamic_symtab)
538 .    (bfd *, struct bfd_symbol **);
539 .  {* Create synthetized symbols.  *}
540 .  long        (*_bfd_get_synthetic_symtab)
541 .    (bfd *, long, struct bfd_symbol **, long, struct bfd_symbol **,
542 .     struct bfd_symbol **);
543 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
544 .  long        (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
545 .  {* Read in the dynamic relocs.  *}
546 .  long        (*_bfd_canonicalize_dynamic_reloc)
547 .    (bfd *, arelent **, struct bfd_symbol **);
548 .
549 
550 A pointer to an alternative bfd_target in case the current one is not
551 satisfactory.  This can happen when the target cpu supports both big
552 and little endian code, and target chosen by the linker has the wrong
553 endianness.  The function open_output() in ld/ldlang.c uses this field
554 to find an alternative output format that is suitable.
555 
556 .  {* Opposite endian version of this target.  *}
557 .  const struct bfd_target * alternative_target;
558 .
559 
560 .  {* Data for use by back-end routines, which isn't
561 .     generic enough to belong in this structure.  *}
562 .  const void *backend_data;
563 .
564 .} bfd_target;
565 .
566 */
567 
568 /* All known xvecs (even those that don't compile on all systems).
569    Alphabetized for easy reference.
570    They are listed a second time below, since
571    we can't intermix extern's and initializers.  */
572 extern const bfd_target aarch64_elf32_be_vec;
573 extern const bfd_target aarch64_elf32_le_vec;
574 extern const bfd_target aarch64_elf64_be_vec;
575 extern const bfd_target aarch64_elf64_be_cloudabi_vec;
576 extern const bfd_target aarch64_elf64_le_vec;
577 extern const bfd_target aarch64_elf64_le_cloudabi_vec;
578 extern const bfd_target aarch64_mach_o_vec;
579 extern const bfd_target alpha_ecoff_le_vec;
580 extern const bfd_target alpha_elf64_vec;
581 extern const bfd_target alpha_elf64_fbsd_vec;
582 extern const bfd_target alpha_nlm32_vec;
583 extern const bfd_target alpha_vms_vec;
584 extern const bfd_target alpha_vms_lib_txt_vec;
585 extern const bfd_target am33_elf32_linux_vec;
586 extern const bfd_target aout0_be_vec;
587 extern const bfd_target aout64_vec;
588 extern const bfd_target aout_vec;
589 extern const bfd_target aout_adobe_vec;
590 extern const bfd_target arc_elf32_be_vec;
591 extern const bfd_target arc_elf32_le_vec;
592 extern const bfd_target arm_aout_be_vec;
593 extern const bfd_target arm_aout_le_vec;
594 extern const bfd_target arm_aout_nbsd_vec;
595 extern const bfd_target arm_aout_riscix_vec;
596 extern const bfd_target arm_coff_be_vec;
597 extern const bfd_target arm_coff_le_vec;
598 extern const bfd_target arm_elf32_be_vec;
599 extern const bfd_target arm_elf32_le_vec;
600 extern const bfd_target arm_elf32_nacl_be_vec;
601 extern const bfd_target arm_elf32_nacl_le_vec;
602 extern const bfd_target arm_elf32_symbian_be_vec;
603 extern const bfd_target arm_elf32_symbian_le_vec;
604 extern const bfd_target arm_elf32_vxworks_be_vec;
605 extern const bfd_target arm_elf32_vxworks_le_vec;
606 extern const bfd_target arm_mach_o_vec;
607 extern const bfd_target arm_pe_be_vec;
608 extern const bfd_target arm_pe_le_vec;
609 extern const bfd_target arm_pe_epoc_be_vec;
610 extern const bfd_target arm_pe_epoc_le_vec;
611 extern const bfd_target arm_pe_wince_be_vec;
612 extern const bfd_target arm_pe_wince_le_vec;
613 extern const bfd_target arm_pei_be_vec;
614 extern const bfd_target arm_pei_le_vec;
615 extern const bfd_target arm_pei_epoc_be_vec;
616 extern const bfd_target arm_pei_epoc_le_vec;
617 extern const bfd_target arm_pei_wince_be_vec;
618 extern const bfd_target arm_pei_wince_le_vec;
619 extern const bfd_target avr_elf32_vec;
620 extern const bfd_target bfin_elf32_vec;
621 extern const bfd_target bfin_elf32_fdpic_vec;
622 extern const bfd_target bout_be_vec;
623 extern const bfd_target bout_le_vec;
624 extern const bfd_target cr16_elf32_vec;
625 extern const bfd_target cr16c_elf32_vec;
626 extern const bfd_target cris_aout_vec;
627 extern const bfd_target cris_elf32_vec;
628 extern const bfd_target cris_elf32_us_vec;
629 extern const bfd_target crx_elf32_vec;
630 extern const bfd_target d10v_elf32_vec;
631 extern const bfd_target d30v_elf32_vec;
632 extern const bfd_target dlx_elf32_be_vec;
633 extern const bfd_target elf32_be_vec;
634 extern const bfd_target elf32_le_vec;
635 extern const bfd_target elf64_be_vec;
636 extern const bfd_target elf64_le_vec;
637 extern const bfd_target epiphany_elf32_vec;
638 extern const bfd_target fr30_elf32_vec;
639 extern const bfd_target frv_elf32_vec;
640 extern const bfd_target frv_elf32_fdpic_vec;
641 extern const bfd_target h8300_coff_vec;
642 extern const bfd_target h8300_elf32_vec;
643 extern const bfd_target h8300_elf32_linux_vec;
644 extern const bfd_target h8500_coff_vec;
645 extern const bfd_target hppa_elf32_vec;
646 extern const bfd_target hppa_elf32_linux_vec;
647 extern const bfd_target hppa_elf32_nbsd_vec;
648 extern const bfd_target hppa_elf64_vec;
649 extern const bfd_target hppa_elf64_linux_vec;
650 extern const bfd_target hppa_som_vec;
651 extern const bfd_target i370_elf32_vec;
652 extern const bfd_target i386_aout_vec;
653 extern const bfd_target i386_aout_bsd_vec;
654 extern const bfd_target i386_aout_dynix_vec;
655 extern const bfd_target i386_aout_fbsd_vec;
656 extern const bfd_target i386_aout_linux_vec;
657 extern const bfd_target i386_aout_lynx_vec;
658 extern const bfd_target i386_aout_mach3_vec;
659 extern const bfd_target i386_aout_nbsd_vec;
660 extern const bfd_target i386_aout_os9k_vec;
661 extern const bfd_target i386_coff_vec;
662 extern const bfd_target i386_coff_go32_vec;
663 extern const bfd_target i386_coff_go32stubbed_vec;
664 extern const bfd_target i386_coff_lynx_vec;
665 extern const bfd_target i386_elf32_vec;
666 extern const bfd_target i386_elf32_fbsd_vec;
667 extern const bfd_target i386_elf32_nacl_vec;
668 extern const bfd_target i386_elf32_sol2_vec;
669 extern const bfd_target i386_elf32_vxworks_vec;
670 extern const bfd_target i386_mach_o_vec;
671 extern const bfd_target i386_msdos_vec;
672 extern const bfd_target i386_nlm32_vec;
673 extern const bfd_target i386_pe_vec;
674 extern const bfd_target i386_pei_vec;
675 extern const bfd_target iamcu_elf32_vec;
676 extern const bfd_target i860_coff_vec;
677 extern const bfd_target i860_elf32_vec;
678 extern const bfd_target i860_elf32_le_vec;
679 extern const bfd_target i960_elf32_vec;
680 extern const bfd_target ia64_elf32_be_vec;
681 extern const bfd_target ia64_elf32_hpux_be_vec;
682 extern const bfd_target ia64_elf64_be_vec;
683 extern const bfd_target ia64_elf64_le_vec;
684 extern const bfd_target ia64_elf64_hpux_be_vec;
685 extern const bfd_target ia64_elf64_vms_vec;
686 extern const bfd_target ia64_pei_vec;
687 extern const bfd_target icoff_be_vec;
688 extern const bfd_target icoff_le_vec;
689 extern const bfd_target ieee_vec;
690 extern const bfd_target ip2k_elf32_vec;
691 extern const bfd_target iq2000_elf32_vec;
692 extern const bfd_target k1om_elf64_vec;
693 extern const bfd_target k1om_elf64_fbsd_vec;
694 extern const bfd_target l1om_elf64_vec;
695 extern const bfd_target l1om_elf64_fbsd_vec;
696 extern const bfd_target lm32_elf32_vec;
697 extern const bfd_target lm32_elf32_fdpic_vec;
698 extern const bfd_target m32c_elf32_vec;
699 extern const bfd_target m32r_elf32_vec;
700 extern const bfd_target m32r_elf32_le_vec;
701 extern const bfd_target m32r_elf32_linux_vec;
702 extern const bfd_target m32r_elf32_linux_le_vec;
703 extern const bfd_target m68hc11_elf32_vec;
704 extern const bfd_target m68hc12_elf32_vec;
705 extern const bfd_target m68k_aout_4knbsd_vec;
706 extern const bfd_target m68k_aout_hp300bsd_vec;
707 extern const bfd_target m68k_aout_hp300hpux_vec;
708 extern const bfd_target m68k_aout_linux_vec;
709 extern const bfd_target m68k_aout_nbsd_vec;
710 extern const bfd_target m68k_aout_newsos3_vec;
711 extern const bfd_target m68k_coff_vec;
712 extern const bfd_target m68k_coff_apollo_vec;
713 extern const bfd_target m68k_coff_aux_vec;
714 extern const bfd_target m68k_coff_sysv_vec;
715 extern const bfd_target m68k_coff_un_vec;
716 extern const bfd_target m68k_elf32_vec;
717 extern const bfd_target m68k_versados_vec;
718 extern const bfd_target m88k_aout_mach3_vec;
719 extern const bfd_target m88k_aout_obsd_vec;
720 extern const bfd_target m88k_coff_bcs_vec;
721 extern const bfd_target m88k_elf32_vec;
722 extern const bfd_target mach_o_be_vec;
723 extern const bfd_target mach_o_le_vec;
724 extern const bfd_target mach_o_fat_vec;
725 extern const bfd_target mcore_elf32_be_vec;
726 extern const bfd_target mcore_elf32_le_vec;
727 extern const bfd_target mcore_pe_be_vec;
728 extern const bfd_target mcore_pe_le_vec;
729 extern const bfd_target mcore_pei_be_vec;
730 extern const bfd_target mcore_pei_le_vec;
731 extern const bfd_target mep_elf32_vec;
732 extern const bfd_target mep_elf32_le_vec;
733 extern const bfd_target metag_elf32_vec;
734 extern const bfd_target microblaze_elf32_vec;
735 extern const bfd_target microblaze_elf32_le_vec;
736 extern const bfd_target mips_aout_be_vec;
737 extern const bfd_target mips_aout_le_vec;
738 extern const bfd_target mips_ecoff_be_vec;
739 extern const bfd_target mips_ecoff_le_vec;
740 extern const bfd_target mips_ecoff_bele_vec;
741 extern const bfd_target mips_elf32_be_vec;
742 extern const bfd_target mips_elf32_le_vec;
743 extern const bfd_target mips_elf32_n_be_vec;
744 extern const bfd_target mips_elf32_n_le_vec;
745 extern const bfd_target mips_elf32_ntrad_be_vec;
746 extern const bfd_target mips_elf32_ntrad_le_vec;
747 extern const bfd_target mips_elf32_ntradfbsd_be_vec;
748 extern const bfd_target mips_elf32_ntradfbsd_le_vec;
749 extern const bfd_target mips_elf32_trad_be_vec;
750 extern const bfd_target mips_elf32_trad_le_vec;
751 extern const bfd_target mips_elf32_tradfbsd_be_vec;
752 extern const bfd_target mips_elf32_tradfbsd_le_vec;
753 extern const bfd_target mips_elf32_vxworks_be_vec;
754 extern const bfd_target mips_elf32_vxworks_le_vec;
755 extern const bfd_target mips_elf64_be_vec;
756 extern const bfd_target mips_elf64_le_vec;
757 extern const bfd_target mips_elf64_trad_be_vec;
758 extern const bfd_target mips_elf64_trad_le_vec;
759 extern const bfd_target mips_elf64_tradfbsd_be_vec;
760 extern const bfd_target mips_elf64_tradfbsd_le_vec;
761 extern const bfd_target mips_pe_le_vec;
762 extern const bfd_target mips_pei_le_vec;
763 extern const bfd_target mmix_elf64_vec;
764 extern const bfd_target mmix_mmo_vec;
765 extern const bfd_target mn10200_elf32_vec;
766 extern const bfd_target mn10300_elf32_vec;
767 extern const bfd_target moxie_elf32_be_vec;
768 extern const bfd_target moxie_elf32_le_vec;
769 extern const bfd_target msp430_elf32_vec;
770 extern const bfd_target msp430_elf32_ti_vec;
771 extern const bfd_target mt_elf32_vec;
772 extern const bfd_target nds32_elf32_be_vec;
773 extern const bfd_target nds32_elf32_le_vec;
774 extern const bfd_target nds32_elf32_linux_be_vec;
775 extern const bfd_target nds32_elf32_linux_le_vec;
776 extern const bfd_target nios2_elf32_be_vec;
777 extern const bfd_target nios2_elf32_le_vec;
778 extern const bfd_target ns32k_aout_pc532mach_vec;
779 extern const bfd_target ns32k_aout_pc532nbsd_vec;
780 extern const bfd_target oasys_vec;
781 extern const bfd_target or1k_elf32_vec;
782 extern const bfd_target pdp11_aout_vec;
783 extern const bfd_target pef_vec;
784 extern const bfd_target pef_xlib_vec;
785 extern const bfd_target pj_elf32_vec;
786 extern const bfd_target pj_elf32_le_vec;
787 extern const bfd_target plugin_vec;
788 extern const bfd_target powerpc_boot_vec;
789 extern const bfd_target powerpc_elf32_vec;
790 extern const bfd_target powerpc_elf32_le_vec;
791 extern const bfd_target powerpc_elf32_fbsd_vec;
792 extern const bfd_target powerpc_elf32_vxworks_vec;
793 extern const bfd_target powerpc_elf64_vec;
794 extern const bfd_target powerpc_elf64_le_vec;
795 extern const bfd_target powerpc_elf64_fbsd_vec;
796 extern const bfd_target powerpc_nlm32_vec;
797 extern const bfd_target powerpc_pe_vec;
798 extern const bfd_target powerpc_pe_le_vec;
799 extern const bfd_target powerpc_pei_vec;
800 extern const bfd_target powerpc_pei_le_vec;
801 extern const bfd_target powerpc_xcoff_vec;
802 extern const bfd_target pru_elf32_vec;
803 extern const bfd_target riscv_elf32_vec;
804 extern const bfd_target riscv_elf64_vec;
805 extern const bfd_target rl78_elf32_vec;
806 extern const bfd_target rs6000_xcoff64_vec;
807 extern const bfd_target rs6000_xcoff64_aix_vec;
808 extern const bfd_target rs6000_xcoff_vec;
809 extern const bfd_target rx_elf32_be_vec;
810 extern const bfd_target rx_elf32_be_ns_vec;
811 extern const bfd_target rx_elf32_le_vec;
812 extern const bfd_target s390_elf32_vec;
813 extern const bfd_target s390_elf64_vec;
814 extern const bfd_target score_elf32_be_vec;
815 extern const bfd_target score_elf32_le_vec;
816 extern const bfd_target sh64_elf32_vec;
817 extern const bfd_target sh64_elf32_le_vec;
818 extern const bfd_target sh64_elf32_linux_vec;
819 extern const bfd_target sh64_elf32_linux_be_vec;
820 extern const bfd_target sh64_elf32_nbsd_vec;
821 extern const bfd_target sh64_elf32_nbsd_le_vec;
822 extern const bfd_target sh64_elf64_vec;
823 extern const bfd_target sh64_elf64_le_vec;
824 extern const bfd_target sh64_elf64_linux_vec;
825 extern const bfd_target sh64_elf64_linux_be_vec;
826 extern const bfd_target sh64_elf64_nbsd_vec;
827 extern const bfd_target sh64_elf64_nbsd_le_vec;
828 extern const bfd_target sh_coff_vec;
829 extern const bfd_target sh_coff_le_vec;
830 extern const bfd_target sh_coff_small_vec;
831 extern const bfd_target sh_coff_small_le_vec;
832 extern const bfd_target sh_elf32_vec;
833 extern const bfd_target sh_elf32_le_vec;
834 extern const bfd_target sh_elf32_fdpic_be_vec;
835 extern const bfd_target sh_elf32_fdpic_le_vec;
836 extern const bfd_target sh_elf32_linux_vec;
837 extern const bfd_target sh_elf32_linux_be_vec;
838 extern const bfd_target sh_elf32_nbsd_vec;
839 extern const bfd_target sh_elf32_nbsd_le_vec;
840 extern const bfd_target sh_elf32_symbian_le_vec;
841 extern const bfd_target sh_elf32_vxworks_vec;
842 extern const bfd_target sh_elf32_vxworks_le_vec;
843 extern const bfd_target sh_pe_le_vec;
844 extern const bfd_target sh_pei_le_vec;
845 extern const bfd_target sparc_aout_le_vec;
846 extern const bfd_target sparc_aout_linux_vec;
847 extern const bfd_target sparc_aout_lynx_vec;
848 extern const bfd_target sparc_aout_nbsd_vec;
849 extern const bfd_target sparc_aout_sunos_be_vec;
850 extern const bfd_target sparc_coff_vec;
851 extern const bfd_target sparc_coff_lynx_vec;
852 extern const bfd_target sparc_elf32_vec;
853 extern const bfd_target sparc_elf32_sol2_vec;
854 extern const bfd_target sparc_elf32_vxworks_vec;
855 extern const bfd_target sparc_elf64_vec;
856 extern const bfd_target sparc_elf64_fbsd_vec;
857 extern const bfd_target sparc_elf64_sol2_vec;
858 extern const bfd_target sparc_nlm32_vec;
859 extern const bfd_target spu_elf32_vec;
860 extern const bfd_target sym_vec;
861 extern const bfd_target tic30_aout_vec;
862 extern const bfd_target tic30_coff_vec;
863 extern const bfd_target tic4x_coff0_vec;
864 extern const bfd_target tic4x_coff0_beh_vec;
865 extern const bfd_target tic4x_coff1_vec;
866 extern const bfd_target tic4x_coff1_beh_vec;
867 extern const bfd_target tic4x_coff2_vec;
868 extern const bfd_target tic4x_coff2_beh_vec;
869 extern const bfd_target tic54x_coff0_vec;
870 extern const bfd_target tic54x_coff0_beh_vec;
871 extern const bfd_target tic54x_coff1_vec;
872 extern const bfd_target tic54x_coff1_beh_vec;
873 extern const bfd_target tic54x_coff2_vec;
874 extern const bfd_target tic54x_coff2_beh_vec;
875 extern const bfd_target tic6x_elf32_be_vec;
876 extern const bfd_target tic6x_elf32_le_vec;
877 extern const bfd_target tic6x_elf32_c6000_be_vec;
878 extern const bfd_target tic6x_elf32_c6000_le_vec;
879 extern const bfd_target tic6x_elf32_linux_be_vec;
880 extern const bfd_target tic6x_elf32_linux_le_vec;
881 extern const bfd_target tic80_coff_vec;
882 extern const bfd_target tilegx_elf32_be_vec;
883 extern const bfd_target tilegx_elf32_le_vec;
884 extern const bfd_target tilegx_elf64_be_vec;
885 extern const bfd_target tilegx_elf64_le_vec;
886 extern const bfd_target tilepro_elf32_vec;
887 extern const bfd_target v800_elf32_vec;
888 extern const bfd_target v850_elf32_vec;
889 extern const bfd_target ft32_elf32_vec;
890 extern const bfd_target vax_aout_1knbsd_vec;
891 extern const bfd_target vax_aout_bsd_vec;
892 extern const bfd_target vax_aout_nbsd_vec;
893 extern const bfd_target vax_elf32_vec;
894 extern const bfd_target visium_elf32_vec;
895 extern const bfd_target w65_coff_vec;
896 extern const bfd_target wasm_vec;
897 extern const bfd_target wasm32_elf32_vec;
898 extern const bfd_target we32k_coff_vec;
899 extern const bfd_target x86_64_coff_vec;
900 extern const bfd_target x86_64_elf32_vec;
901 extern const bfd_target x86_64_elf32_nacl_vec;
902 extern const bfd_target x86_64_elf64_vec;
903 extern const bfd_target x86_64_elf64_cloudabi_vec;
904 extern const bfd_target x86_64_elf64_fbsd_vec;
905 extern const bfd_target x86_64_elf64_nacl_vec;
906 extern const bfd_target x86_64_elf64_sol2_vec;
907 extern const bfd_target x86_64_mach_o_vec;
908 extern const bfd_target x86_64_pe_vec;
909 extern const bfd_target x86_64_pe_be_vec;
910 extern const bfd_target x86_64_pei_vec;
911 extern const bfd_target xc16x_elf32_vec;
912 extern const bfd_target xgate_elf32_vec;
913 extern const bfd_target xstormy16_elf32_vec;
914 extern const bfd_target xtensa_elf32_be_vec;
915 extern const bfd_target xtensa_elf32_le_vec;
916 extern const bfd_target z80_coff_vec;
917 extern const bfd_target z8k_coff_vec;
918 
919 /* These are always included.  */
920 extern const bfd_target srec_vec;
921 extern const bfd_target symbolsrec_vec;
922 extern const bfd_target verilog_vec;
923 extern const bfd_target tekhex_vec;
924 extern const bfd_target binary_vec;
925 extern const bfd_target ihex_vec;
926 
927 /* All of the xvecs for core files.  */
928 extern const bfd_target core_aix386_vec;
929 extern const bfd_target core_cisco_be_vec;
930 extern const bfd_target core_cisco_le_vec;
931 extern const bfd_target core_hppabsd_vec;
932 extern const bfd_target core_hpux_vec;
933 extern const bfd_target core_irix_vec;
934 extern const bfd_target core_netbsd_vec;
935 extern const bfd_target core_osf_vec;
936 extern const bfd_target core_ptrace_vec;
937 extern const bfd_target core_sco5_vec;
938 extern const bfd_target core_trad_vec;
939 
940 static const bfd_target * const _bfd_target_vector[] =
941 {
942 #ifdef SELECT_VECS
943 
944 	SELECT_VECS,
945 
946 #else /* not SELECT_VECS */
947 
948 #ifdef DEFAULT_VECTOR
949 	&DEFAULT_VECTOR,
950 #endif
951 	/* This list is alphabetized to make it easy to compare
952 	   with other vector lists -- the decls above and
953 	   the case statement in configure.ac.
954 	   Try to keep it in order when adding new targets, and
955 	   use a name of the form <cpu>_<format>_<other>_<endian>_vec.
956 	   Note that sorting is done as if _<endian>_vec wasn't present.
957 	   Vectors that don't compile on all systems, or aren't finished,
958 	   should have an entry here with #if 0 around it, to show that
959 	   it wasn't omitted by mistake.  */
960 #ifdef BFD64
961 	&aarch64_elf32_be_vec,
962 	&aarch64_elf32_le_vec,
963 	&aarch64_elf64_be_vec,
964 	&aarch64_elf64_be_cloudabi_vec,
965 	&aarch64_elf64_le_vec,
966 	&aarch64_elf64_le_cloudabi_vec,
967 	&aarch64_mach_o_vec,
968 #endif
969 
970 #ifdef BFD64
971 	&alpha_ecoff_le_vec,
972 	&alpha_elf64_vec,
973 	&alpha_elf64_fbsd_vec,
974 	&alpha_nlm32_vec,
975 	&alpha_vms_vec,
976 #endif
977 	&alpha_vms_lib_txt_vec,
978 
979 	&am33_elf32_linux_vec,
980 
981 	&aout0_be_vec,
982 #ifdef BFD64
983 	&aout64_vec,	/* Only compiled if host has long-long support.  */
984 #endif
985 #if 0
986 	/* Since a.out files lack decent magic numbers, no way to recognize
987 	   which kind of a.out file it is.  */
988 	&aout_vec,
989 #endif
990 	&aout_adobe_vec,
991 
992 	&arc_elf32_be_vec,
993 	&arc_elf32_le_vec,
994 
995 #if 0
996 	/* We have no way of distinguishing these from other a.out variants.  */
997 	&arm_aout_be_vec,
998 	&arm_aout_le_vec,
999 #endif
1000 	&arm_aout_nbsd_vec,
1001 #if 0
1002 	/* We have no way of distinguishing these from other a.out variants.  */
1003 	&arm_aout_riscix_vec,
1004 #endif
1005 	&arm_coff_be_vec,
1006 	&arm_coff_le_vec,
1007 	&arm_elf32_be_vec,
1008 	&arm_elf32_le_vec,
1009 	&arm_elf32_symbian_be_vec,
1010 	&arm_elf32_symbian_le_vec,
1011 	&arm_elf32_vxworks_be_vec,
1012 	&arm_elf32_vxworks_le_vec,
1013 	&arm_mach_o_vec,
1014 	&arm_pe_be_vec,
1015 	&arm_pe_le_vec,
1016 	&arm_pe_epoc_be_vec,
1017 	&arm_pe_epoc_le_vec,
1018 	&arm_pe_wince_be_vec,
1019 	&arm_pe_wince_le_vec,
1020 	&arm_pei_be_vec,
1021 	&arm_pei_le_vec,
1022 	&arm_pei_epoc_be_vec,
1023 	&arm_pei_epoc_le_vec,
1024 	&arm_pei_wince_be_vec,
1025 	&arm_pei_wince_le_vec,
1026 
1027 	&avr_elf32_vec,
1028 
1029 	&bfin_elf32_vec,
1030 	&bfin_elf32_fdpic_vec,
1031 
1032 	&bout_be_vec,
1033 	&bout_le_vec,
1034 
1035 	&cr16_elf32_vec,
1036 	&cr16c_elf32_vec,
1037 
1038 	&cris_aout_vec,
1039 	&cris_elf32_vec,
1040 	&cris_elf32_us_vec,
1041 
1042 	&crx_elf32_vec,
1043 
1044 	&d10v_elf32_vec,
1045 	&d30v_elf32_vec,
1046 
1047 	&dlx_elf32_be_vec,
1048 
1049 	/* This, and other vectors, may not be used in any *.mt configuration.
1050 	   But that does not mean they are unnecessary.  If configured with
1051 	   --enable-targets=all, objdump or gdb should be able to examine
1052 	   the file even if we don't recognize the machine type.  */
1053 	&elf32_be_vec,
1054 	&elf32_le_vec,
1055 #ifdef BFD64
1056 	&elf64_be_vec,
1057 	&elf64_le_vec,
1058 #endif
1059 
1060 	&epiphany_elf32_vec,
1061 
1062 	&fr30_elf32_vec,
1063 
1064 	&frv_elf32_vec,
1065 	&frv_elf32_fdpic_vec,
1066 
1067 	&h8300_coff_vec,
1068 	&h8300_elf32_vec,
1069 	&h8300_elf32_linux_vec,
1070 	&h8500_coff_vec,
1071 
1072 	&hppa_elf32_vec,
1073 	&hppa_elf32_linux_vec,
1074 	&hppa_elf32_nbsd_vec,
1075 #ifdef BFD64
1076 	&hppa_elf64_vec,
1077 	&hppa_elf64_linux_vec,
1078 #endif
1079 	&hppa_som_vec,
1080 
1081 	&i370_elf32_vec,
1082 
1083 	&i386_aout_vec,
1084 	&i386_aout_bsd_vec,
1085 #if 0
1086 	&i386_aout_dynix_vec,
1087 #endif
1088 	&i386_aout_fbsd_vec,
1089 #if 0
1090 	/* Since a.out files lack decent magic numbers, no way to recognize
1091 	   which kind of a.out file it is.  */
1092 	&i386_aout_linux_vec,
1093 #endif
1094 	&i386_aout_lynx_vec,
1095 #if 0
1096 	/* No distinguishing features for Mach 3 executables.  */
1097 	&i386_aout_mach3_vec,
1098 #endif
1099 	&i386_aout_nbsd_vec,
1100 	&i386_aout_os9k_vec,
1101 	&i386_coff_vec,
1102 	&i386_coff_go32_vec,
1103 	&i386_coff_go32stubbed_vec,
1104 	&i386_coff_lynx_vec,
1105 	&i386_elf32_vec,
1106 	&i386_elf32_fbsd_vec,
1107 	&i386_elf32_nacl_vec,
1108 	&i386_elf32_sol2_vec,
1109 	&i386_elf32_vxworks_vec,
1110 	&i386_mach_o_vec,
1111 	&i386_msdos_vec,
1112 	&i386_nlm32_vec,
1113 	&i386_pe_vec,
1114 	&i386_pei_vec,
1115 
1116 	&iamcu_elf32_vec,
1117 
1118 	&i860_coff_vec,
1119 	&i860_elf32_vec,
1120 	&i860_elf32_le_vec,
1121 
1122 	&i960_elf32_vec,
1123 
1124 #ifdef BFD64
1125 #if 0
1126 	&ia64_elf32_be_vec,
1127 #endif
1128 	&ia64_elf32_hpux_be_vec,
1129 	&ia64_elf64_be_vec,
1130 	&ia64_elf64_le_vec,
1131 	&ia64_elf64_hpux_be_vec,
1132 	&ia64_elf64_vms_vec,
1133 	&ia64_pei_vec,
1134 #endif
1135 
1136 	&icoff_be_vec,
1137 	&icoff_le_vec,
1138 
1139 	&ieee_vec,
1140 
1141 	&ip2k_elf32_vec,
1142 	&iq2000_elf32_vec,
1143 
1144 #ifdef BFD64
1145 	&k1om_elf64_vec,
1146 	&k1om_elf64_fbsd_vec,
1147 	&l1om_elf64_vec,
1148 	&l1om_elf64_fbsd_vec,
1149 #endif
1150 
1151 	&lm32_elf32_vec,
1152 
1153 	&m32c_elf32_vec,
1154 
1155 	&m32r_elf32_vec,
1156 	&m32r_elf32_le_vec,
1157 	&m32r_elf32_linux_vec,
1158 	&m32r_elf32_linux_le_vec,
1159 
1160 	&m68hc11_elf32_vec,
1161 	&m68hc12_elf32_vec,
1162 
1163 #if 0
1164 	&m68k_aout_4knbsd_vec,
1165 	/* Clashes with sparc_aout_sunos_be_vec magic no.  */
1166 	&m68k_aout_hp300bsd_vec,
1167 #endif
1168 	&m68k_aout_hp300hpux_vec,
1169 #if 0
1170 	/* Since a.out files lack decent magic numbers, no way to recognize
1171 	   which kind of a.out file it is.  */
1172 	&m68k_aout_linux_vec,
1173 #endif
1174 	&m68k_aout_nbsd_vec,
1175 	&m68k_aout_newsos3_vec,
1176 	&m68k_coff_vec,
1177 #if 0
1178 	&m68k_coff_apollo_vec,
1179 	&m68k_coff_aux_vec,
1180 #endif
1181 	&m68k_coff_sysv_vec,
1182 	&m68k_coff_un_vec,
1183 	&m68k_elf32_vec,
1184 	&m68k_versados_vec,
1185 
1186 	&m88k_aout_mach3_vec,
1187 	&m88k_aout_obsd_vec,
1188 	&m88k_coff_bcs_vec,
1189 	&m88k_elf32_vec,
1190 
1191 	&mach_o_be_vec,
1192 	&mach_o_le_vec,
1193 	&mach_o_fat_vec,
1194 
1195 	&mcore_elf32_be_vec,
1196 	&mcore_elf32_le_vec,
1197 	&mcore_pe_be_vec,
1198 	&mcore_pe_le_vec,
1199 	&mcore_pei_be_vec,
1200 	&mcore_pei_le_vec,
1201 
1202 	&mep_elf32_vec,
1203 
1204 	&metag_elf32_vec,
1205 
1206 	&microblaze_elf32_vec,
1207 
1208 #if 0
1209 	/* No one seems to use this.  */
1210 	&mips_aout_be_vec,
1211 #endif
1212 	&mips_aout_le_vec,
1213 	&mips_ecoff_be_vec,
1214 	&mips_ecoff_le_vec,
1215 	&mips_ecoff_bele_vec,
1216 #ifdef BFD64
1217 	&mips_elf32_be_vec,
1218 	&mips_elf32_le_vec,
1219 	&mips_elf32_n_be_vec,
1220 	&mips_elf32_n_le_vec,
1221 	&mips_elf32_ntrad_be_vec,
1222 	&mips_elf32_ntrad_le_vec,
1223 	&mips_elf32_ntradfbsd_be_vec,
1224 	&mips_elf32_ntradfbsd_le_vec,
1225 	&mips_elf32_trad_be_vec,
1226 	&mips_elf32_trad_le_vec,
1227 	&mips_elf32_tradfbsd_be_vec,
1228 	&mips_elf32_tradfbsd_le_vec,
1229 	&mips_elf32_vxworks_be_vec,
1230 	&mips_elf32_vxworks_le_vec,
1231 	&mips_elf64_be_vec,
1232 	&mips_elf64_le_vec,
1233 	&mips_elf64_trad_be_vec,
1234 	&mips_elf64_trad_le_vec,
1235 	&mips_elf64_tradfbsd_be_vec,
1236 	&mips_elf64_tradfbsd_le_vec,
1237 #endif
1238 	&mips_pe_le_vec,
1239 	&mips_pei_le_vec,
1240 
1241 #ifdef BFD64
1242 	&mmix_elf64_vec,
1243 	&mmix_mmo_vec,
1244 #endif
1245 
1246 	&mn10200_elf32_vec,
1247 	&mn10300_elf32_vec,
1248 
1249 	&moxie_elf32_be_vec,
1250 	&moxie_elf32_le_vec,
1251 
1252 	&msp430_elf32_vec,
1253 	&msp430_elf32_ti_vec,
1254 
1255 	&mt_elf32_vec,
1256 
1257 	&nds32_elf32_be_vec,
1258 	&nds32_elf32_le_vec,
1259 	&nds32_elf32_linux_be_vec,
1260 	&nds32_elf32_linux_le_vec,
1261 
1262 	&nios2_elf32_be_vec,
1263 	&nios2_elf32_le_vec,
1264 
1265 	&ns32k_aout_pc532mach_vec,
1266 	&ns32k_aout_pc532nbsd_vec,
1267 
1268 #if 0
1269 	/* We have no oasys tools anymore, so we can't test any of this
1270 	   anymore. If you want to test the stuff yourself, go ahead...
1271 	   steve@cygnus.com
1272 	   Worse, since there is no magic number for archives, there
1273 	   can be annoying target mis-matches.  */
1274 	&oasys_vec,
1275 #endif
1276 
1277 	&or1k_elf32_vec,
1278 
1279 	&pdp11_aout_vec,
1280 
1281 	&pef_vec,
1282 	&pef_xlib_vec,
1283 
1284 	&pj_elf32_vec,
1285 	&pj_elf32_le_vec,
1286 
1287 #if BFD_SUPPORTS_PLUGINS
1288 	&plugin_vec,
1289 #endif
1290 
1291 	&powerpc_boot_vec,
1292 	&powerpc_elf32_vec,
1293 	&powerpc_elf32_le_vec,
1294 	&powerpc_elf32_fbsd_vec,
1295 	&powerpc_elf32_vxworks_vec,
1296 #ifdef BFD64
1297 	&powerpc_elf64_vec,
1298 	&powerpc_elf64_le_vec,
1299 	&powerpc_elf64_fbsd_vec,
1300 #endif
1301 	&powerpc_nlm32_vec,
1302 	&powerpc_pe_vec,
1303 	&powerpc_pe_le_vec,
1304 	&powerpc_pei_vec,
1305 	&powerpc_pei_le_vec,
1306 #if 0
1307 	/* This has the same magic number as RS/6000.  */
1308 	&powerpc_xcoff_vec,
1309 #endif
1310 
1311 	&pru_elf32_vec,
1312 
1313 #ifdef BFD64
1314 	&riscv_elf32_vec,
1315 	&riscv_elf64_vec,
1316 #endif
1317 	&rl78_elf32_vec,
1318 
1319 #ifdef BFD64
1320 	&rs6000_xcoff64_vec,
1321 	&rs6000_xcoff64_aix_vec,
1322 #endif
1323 	&rs6000_xcoff_vec,
1324 
1325 	&rx_elf32_be_vec,
1326 	&rx_elf32_be_ns_vec,
1327 	&rx_elf32_le_vec,
1328 
1329 	&s390_elf32_vec,
1330 #ifdef BFD64
1331 	&s390_elf64_vec,
1332 #endif
1333 
1334 #ifdef BFD64
1335 	&score_elf32_be_vec,
1336 	&score_elf32_le_vec,
1337 #endif
1338 
1339 #ifdef BFD64
1340 	&sh64_elf32_vec,
1341 	&sh64_elf32_le_vec,
1342 	&sh64_elf32_linux_vec,
1343 	&sh64_elf32_linux_be_vec,
1344 	&sh64_elf32_nbsd_vec,
1345 	&sh64_elf32_nbsd_le_vec,
1346 	&sh64_elf64_vec,
1347 	&sh64_elf64_le_vec,
1348 	&sh64_elf64_linux_vec,
1349 	&sh64_elf64_linux_be_vec,
1350 	&sh64_elf64_nbsd_vec,
1351 	&sh64_elf64_nbsd_le_vec,
1352 #endif
1353 	&sh_coff_vec,
1354 	&sh_coff_le_vec,
1355 	&sh_coff_small_vec,
1356 	&sh_coff_small_le_vec,
1357 	&sh_elf32_vec,
1358 	&sh_elf32_le_vec,
1359 	&sh_elf32_fdpic_be_vec,
1360 	&sh_elf32_fdpic_le_vec,
1361 	&sh_elf32_linux_vec,
1362 	&sh_elf32_linux_be_vec,
1363 	&sh_elf32_nbsd_vec,
1364 	&sh_elf32_nbsd_le_vec,
1365 	&sh_elf32_symbian_le_vec,
1366 	&sh_elf32_vxworks_vec,
1367 	&sh_elf32_vxworks_le_vec,
1368 	&sh_pe_le_vec,
1369 	&sh_pei_le_vec,
1370 
1371 	&sparc_aout_le_vec,
1372 	&sparc_aout_linux_vec,
1373 	&sparc_aout_lynx_vec,
1374 	&sparc_aout_nbsd_vec,
1375 	&sparc_aout_sunos_be_vec,
1376 	&sparc_coff_vec,
1377 	&sparc_coff_lynx_vec,
1378 	&sparc_elf32_vec,
1379 	&sparc_elf32_sol2_vec,
1380 	&sparc_elf32_vxworks_vec,
1381 #ifdef BFD64
1382 	&sparc_elf64_vec,
1383 	&sparc_elf64_fbsd_vec,
1384 	&sparc_elf64_sol2_vec,
1385 #endif
1386 	&sparc_nlm32_vec,
1387 
1388 	&spu_elf32_vec,
1389 
1390 	&sym_vec,
1391 
1392 	&tic30_aout_vec,
1393 	&tic30_coff_vec,
1394 	&tic54x_coff0_beh_vec,
1395 	&tic54x_coff0_vec,
1396 	&tic54x_coff1_beh_vec,
1397 	&tic54x_coff1_vec,
1398 	&tic54x_coff2_beh_vec,
1399 	&tic54x_coff2_vec,
1400 	&tic6x_elf32_be_vec,
1401 	&tic6x_elf32_le_vec,
1402 	&tic80_coff_vec,
1403 
1404 	&tilegx_elf32_be_vec,
1405 	&tilegx_elf32_le_vec,
1406 #ifdef BFD64
1407 	&tilegx_elf64_be_vec,
1408 	&tilegx_elf64_le_vec,
1409 #endif
1410 	&tilepro_elf32_vec,
1411 
1412 	&ft32_elf32_vec,
1413 
1414 	&v800_elf32_vec,
1415 	&v850_elf32_vec,
1416 
1417 	&vax_aout_1knbsd_vec,
1418 	&vax_aout_bsd_vec,
1419 	&vax_aout_nbsd_vec,
1420 	&vax_elf32_vec,
1421 
1422 	&visium_elf32_vec,
1423 
1424 	&w65_coff_vec,
1425 
1426         &wasm_vec,
1427         &wasm32_elf32_vec,
1428 
1429 	&we32k_coff_vec,
1430 
1431 #ifdef BFD64
1432 	&x86_64_coff_vec,
1433 	&x86_64_elf32_vec,
1434 	&x86_64_elf32_nacl_vec,
1435 	&x86_64_elf64_vec,
1436 	&x86_64_elf64_cloudabi_vec,
1437 	&x86_64_elf64_fbsd_vec,
1438 	&x86_64_elf64_nacl_vec,
1439 	&x86_64_elf64_sol2_vec,
1440 	&x86_64_mach_o_vec,
1441 	&x86_64_pe_vec,
1442 	&x86_64_pe_be_vec,
1443 	&x86_64_pei_vec,
1444 #endif
1445 
1446 	&xc16x_elf32_vec,
1447 
1448 	&xgate_elf32_vec,
1449 
1450 	&xstormy16_elf32_vec,
1451 
1452 	&xtensa_elf32_be_vec,
1453 	&xtensa_elf32_le_vec,
1454 
1455 	&z80_coff_vec,
1456 
1457 	&z8k_coff_vec,
1458 #endif /* not SELECT_VECS */
1459 
1460 /* Always support S-records, for convenience.  */
1461 	&srec_vec,
1462 	&symbolsrec_vec,
1463 /* And verilog.  */
1464 	&verilog_vec,
1465 /* And tekhex */
1466 	&tekhex_vec,
1467 /* Likewise for binary output.  */
1468 	&binary_vec,
1469 /* Likewise for ihex.  */
1470 	&ihex_vec,
1471 
1472 /* Add any required traditional-core-file-handler.  */
1473 
1474 #ifdef AIX386_CORE
1475 	&core_aix386_vec,
1476 #endif
1477 #if 0
1478 	/* We don't include cisco_core_*_vec.  Although it has a magic number,
1479 	   the magic number isn't at the beginning of the file, and thus
1480 	   might spuriously match other kinds of files.  */
1481 	&core_cisco_be_vec,
1482 	&core_cisco_le_vec,
1483 #endif
1484 #ifdef HPPABSD_CORE
1485 	&core_hppabsd_vec,
1486 #endif
1487 #ifdef HPUX_CORE
1488 	&core_hpux_vec,
1489 #endif
1490 #ifdef IRIX_CORE
1491 	&core_irix_vec,
1492 #endif
1493 #ifdef NETBSD_CORE
1494 	&core_netbsd_vec,
1495 #endif
1496 #ifdef OSF_CORE
1497 	&core_osf_vec,
1498 #endif
1499 #ifdef PTRACE_CORE
1500 	&core_ptrace_vec,
1501 #endif
1502 #ifdef SCO5_CORE
1503 	&core_sco5_vec,
1504 #endif
1505 #ifdef TRAD_CORE
1506 	&core_trad_vec,
1507 #endif
1508 
1509 	NULL /* end of list marker */
1510 };
1511 const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1512 
1513 /* bfd_default_vector[0] contains either the address of the default vector,
1514    if there is one, or zero if there isn't.  */
1515 
1516 const bfd_target *bfd_default_vector[] = {
1517 #ifdef DEFAULT_VECTOR
1518 	&DEFAULT_VECTOR,
1519 #endif
1520 	NULL
1521 };
1522 
1523 /* bfd_associated_vector[] contains the associated target vectors used
1524    to reduce the ambiguity in bfd_check_format_matches.  */
1525 
1526 static const bfd_target *_bfd_associated_vector[] = {
1527 #ifdef ASSOCIATED_VECS
1528 	ASSOCIATED_VECS,
1529 #endif
1530 	NULL
1531 };
1532 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector;
1533 
1534 /* When there is an ambiguous match, bfd_check_format_matches puts the
1535    names of the matching targets in an array.  This variable is the maximum
1536    number of entries that the array could possibly need.  */
1537 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1538 
1539 /* This array maps configuration triplets onto BFD vectors.  */
1540 
1541 struct targmatch
1542 {
1543   /* The configuration triplet.  */
1544   const char *triplet;
1545   /* The BFD vector.  If this is NULL, then the vector is found by
1546      searching forward for the next structure with a non NULL vector
1547      field.  */
1548   const bfd_target *vector;
1549 };
1550 
1551 /* targmatch.h is built by Makefile out of config.bfd.  */
1552 static const struct targmatch bfd_target_match[] = {
1553 #include "targmatch.h"
1554   { NULL, NULL }
1555 };
1556 
1557 /* Find a target vector, given a name or configuration triplet.  */
1558 
1559 static const bfd_target *
1560 find_target (const char *name)
1561 {
1562   const bfd_target * const *target;
1563   const struct targmatch *match;
1564 
1565   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1566     if (strcmp (name, (*target)->name) == 0)
1567       return *target;
1568 
1569   /* If we couldn't match on the exact name, try matching on the
1570      configuration triplet.  FIXME: We should run the triplet through
1571      config.sub first, but that is hard.  */
1572   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1573     {
1574       if (fnmatch (match->triplet, name, 0) == 0)
1575 	{
1576 	  while (match->vector == NULL)
1577 	    ++match;
1578 	  return match->vector;
1579 	}
1580     }
1581 
1582   bfd_set_error (bfd_error_invalid_target);
1583   return NULL;
1584 }
1585 
1586 /*
1587 FUNCTION
1588 	bfd_set_default_target
1589 
1590 SYNOPSIS
1591 	bfd_boolean bfd_set_default_target (const char *name);
1592 
1593 DESCRIPTION
1594 	Set the default target vector to use when recognizing a BFD.
1595 	This takes the name of the target, which may be a BFD target
1596 	name or a configuration triplet.
1597 */
1598 
1599 bfd_boolean
1600 bfd_set_default_target (const char *name)
1601 {
1602   const bfd_target *target;
1603 
1604   if (bfd_default_vector[0] != NULL
1605       && strcmp (name, bfd_default_vector[0]->name) == 0)
1606     return TRUE;
1607 
1608   target = find_target (name);
1609   if (target == NULL)
1610     return FALSE;
1611 
1612   bfd_default_vector[0] = target;
1613   return TRUE;
1614 }
1615 
1616 /*
1617 FUNCTION
1618 	bfd_find_target
1619 
1620 SYNOPSIS
1621 	const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
1622 
1623 DESCRIPTION
1624 	Return a pointer to the transfer vector for the object target
1625 	named @var{target_name}.  If @var{target_name} is <<NULL>>,
1626 	choose the one in the environment variable <<GNUTARGET>>; if
1627 	that is null or not defined, then choose the first entry in the
1628 	target list.  Passing in the string "default" or setting the
1629 	environment variable to "default" will cause the first entry in
1630 	the target list to be returned, and "target_defaulted" will be
1631 	set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1632 	<<bfd_check_format>> to loop over all the targets to find the
1633 	one that matches the file being read.
1634 */
1635 
1636 const bfd_target *
1637 bfd_find_target (const char *target_name, bfd *abfd)
1638 {
1639   const char *targname;
1640   const bfd_target *target;
1641 
1642   if (target_name != NULL)
1643     targname = target_name;
1644   else
1645     targname = getenv ("GNUTARGET");
1646 
1647   /* This is safe; the vector cannot be null.  */
1648   if (targname == NULL || strcmp (targname, "default") == 0)
1649     {
1650       if (bfd_default_vector[0] != NULL)
1651 	target = bfd_default_vector[0];
1652       else
1653 	target = bfd_target_vector[0];
1654       if (abfd)
1655 	{
1656 	  abfd->xvec = target;
1657 	  abfd->target_defaulted = TRUE;
1658 	}
1659       return target;
1660     }
1661 
1662   if (abfd)
1663     abfd->target_defaulted = FALSE;
1664 
1665   target = find_target (targname);
1666   if (target == NULL)
1667     return NULL;
1668 
1669   if (abfd)
1670     abfd->xvec = target;
1671   return target;
1672 }
1673 
1674 /* Helper function for bfd_get_target_info to determine the target's
1675    architecture.  This method handles bfd internal target names as
1676    tuples and triplets.  */
1677 static bfd_boolean
1678 _bfd_find_arch_match (const char *tname, const char **arch,
1679 		      const char **def_target_arch)
1680 {
1681   if (!arch)
1682     return FALSE;
1683 
1684   while (*arch != NULL)
1685     {
1686       const char *in_a = strstr (*arch, tname);
1687       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
1688 
1689       if (in_a && (in_a == *arch || in_a[-1] == ':')
1690           && end_ch == 0)
1691         {
1692           *def_target_arch = *arch;
1693           return TRUE;
1694         }
1695       arch++;
1696     }
1697   return FALSE;
1698 }
1699 
1700 /*
1701 FUNCTION
1702 	bfd_get_target_info
1703 SYNOPSIS
1704 	const bfd_target *bfd_get_target_info (const char *target_name,
1705 					       bfd *abfd,
1706 					       bfd_boolean *is_bigendian,
1707 					       int *underscoring,
1708 					       const char **def_target_arch);
1709 DESCRIPTION
1710         Return a pointer to the transfer vector for the object target
1711         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1712         choose the one in the environment variable <<GNUTARGET>>; if
1713         that is null or not defined, then choose the first entry in the
1714         target list.  Passing in the string "default" or setting the
1715         environment variable to "default" will cause the first entry in
1716         the target list to be returned, and "target_defaulted" will be
1717         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1718         <<bfd_check_format>> to loop over all the targets to find the
1719         one that matches the file being read.
1720 	If @var{is_bigendian} is not <<NULL>>, then set this value to target's
1721 	endian mode. True for big-endian, FALSE for little-endian or for
1722 	invalid target.
1723 	If @var{underscoring} is not <<NULL>>, then set this value to target's
1724 	underscoring mode. Zero for none-underscoring, -1 for invalid target,
1725 	else the value of target vector's symbol underscoring.
1726 	If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
1727 	string specified by the target_name.
1728 */
1729 const bfd_target *
1730 bfd_get_target_info (const char *target_name, bfd *abfd,
1731 		     bfd_boolean *is_bigendian,
1732 		     int *underscoring, const char **def_target_arch)
1733 {
1734   const bfd_target *target_vec;
1735 
1736   if (is_bigendian)
1737     *is_bigendian = FALSE;
1738   if (underscoring)
1739     *underscoring = -1;
1740   if (def_target_arch)
1741     *def_target_arch = NULL;
1742   target_vec = bfd_find_target (target_name, abfd);
1743   if (! target_vec)
1744     return NULL;
1745   if (is_bigendian)
1746     *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE
1747 							       : FALSE);
1748   if (underscoring)
1749     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
1750 
1751   if (def_target_arch)
1752     {
1753       const char *tname = target_vec->name;
1754       const char **arches = bfd_arch_list ();
1755 
1756       if (arches && tname)
1757         {
1758           char *hyp = strchr (tname, '-');
1759 
1760           if (hyp != NULL)
1761             {
1762               tname = ++hyp;
1763 
1764 	      /* Make sure we detect architecture names
1765 		 for triplets like "pe-arm-wince-little".  */
1766 	      if (!_bfd_find_arch_match (tname, arches, def_target_arch))
1767 		{
1768 		  char new_tname[50];
1769 
1770 		  strcpy (new_tname, hyp);
1771 		  while ((hyp = strrchr (new_tname, '-')) != NULL)
1772 		    {
1773 		      *hyp = 0;
1774 		      if (_bfd_find_arch_match (new_tname, arches,
1775 						def_target_arch))
1776 			break;
1777 		    }
1778 		}
1779 	    }
1780 	  else
1781 	    _bfd_find_arch_match (tname, arches, def_target_arch);
1782 	}
1783 
1784       if (arches)
1785         free (arches);
1786     }
1787   return target_vec;
1788 }
1789 
1790 /*
1791 FUNCTION
1792 	bfd_target_list
1793 
1794 SYNOPSIS
1795 	const char ** bfd_target_list (void);
1796 
1797 DESCRIPTION
1798 	Return a freshly malloced NULL-terminated
1799 	vector of the names of all the valid BFD targets. Do not
1800 	modify the names.
1801 
1802 */
1803 
1804 const char **
1805 bfd_target_list (void)
1806 {
1807   int vec_length = 0;
1808   bfd_size_type amt;
1809   const bfd_target * const *target;
1810   const  char **name_list, **name_ptr;
1811 
1812   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1813     vec_length++;
1814 
1815   amt = (vec_length + 1) * sizeof (char **);
1816   name_ptr = name_list = (const  char **) bfd_malloc (amt);
1817 
1818   if (name_list == NULL)
1819     return NULL;
1820 
1821   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1822     if (target == &bfd_target_vector[0]
1823 	|| *target != bfd_target_vector[0])
1824       *name_ptr++ = (*target)->name;
1825 
1826   *name_ptr = NULL;
1827   return name_list;
1828 }
1829 
1830 /*
1831 FUNCTION
1832 	bfd_iterate_over_targets
1833 
1834 SYNOPSIS
1835 	const bfd_target *bfd_iterate_over_targets
1836 	  (int (*func) (const bfd_target *, void *),
1837 	   void *data);
1838 
1839 DESCRIPTION
1840 	Call @var{func} for each target in the list of BFD target
1841 	vectors, passing @var{data} to @var{func}.  Stop iterating if
1842 	@var{func} returns a non-zero result, and return that target
1843 	vector.  Return NULL if @var{func} always returns zero.
1844 */
1845 
1846 const bfd_target *
1847 bfd_iterate_over_targets (int (*func) (const bfd_target *, void *),
1848 			  void *data)
1849 {
1850   const bfd_target *const *target;
1851 
1852   for (target = bfd_target_vector; *target != NULL; ++target)
1853     if (func (*target, data))
1854       return *target;
1855 
1856   return NULL;
1857 }
1858 
1859 /*
1860 FUNCTION
1861 	bfd_flavour_name
1862 
1863 SYNOPSIS
1864 	const char *bfd_flavour_name (enum bfd_flavour flavour);
1865 
1866 DESCRIPTION
1867 	Return the string form of @var{flavour}.
1868 */
1869 
1870 const char *
1871 bfd_flavour_name (enum bfd_flavour flavour)
1872 {
1873   switch (flavour)
1874     {
1875     case bfd_target_unknown_flavour: return "unknown file format";
1876     case bfd_target_aout_flavour: return "a.out";
1877     case bfd_target_coff_flavour: return "COFF";
1878     case bfd_target_ecoff_flavour: return "ECOFF";
1879     case bfd_target_xcoff_flavour: return "XCOFF";
1880     case bfd_target_elf_flavour: return "ELF";
1881     case bfd_target_ieee_flavour: return "IEEE";
1882     case bfd_target_nlm_flavour: return "NLM";
1883     case bfd_target_oasys_flavour: return "Oasys";
1884     case bfd_target_tekhex_flavour: return "Tekhex";
1885     case bfd_target_srec_flavour: return "Srec";
1886     case bfd_target_verilog_flavour: return "Verilog";
1887     case bfd_target_ihex_flavour: return "Ihex";
1888     case bfd_target_som_flavour: return "SOM";
1889     case bfd_target_os9k_flavour: return "OS9K";
1890     case bfd_target_versados_flavour: return "Versados";
1891     case bfd_target_msdos_flavour: return "MSDOS";
1892     case bfd_target_ovax_flavour: return "Ovax";
1893     case bfd_target_evax_flavour: return "Evax";
1894     case bfd_target_mmo_flavour: return "mmo";
1895     case bfd_target_mach_o_flavour: return "MACH_O";
1896     case bfd_target_pef_flavour: return "PEF";
1897     case bfd_target_pef_xlib_flavour: return "PEF_XLIB";
1898     case bfd_target_sym_flavour: return "SYM";
1899     /* There is no "default" case here so that -Wswitch (part of -Wall)
1900        catches missing entries.  */
1901     }
1902 
1903   abort ();
1904 }
1905