xref: /dragonfly/contrib/gdb-7/bfd/targets.c (revision 0db87cb7)
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, 2011, 2012
4    Free Software Foundation, Inc.
5    Written by Cygnus Support.
6 
7    This file is part of BFD, the Binary File Descriptor library.
8 
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.
13 
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.
18 
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.  */
23 
24 #include "sysdep.h"
25 #include "bfd.h"
26 #include "libbfd.h"
27 #include "fnmatch.h"
28 
29 /*
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!
35 */
36 
37 /*
38 SECTION
39 	Targets
40 
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.
48 
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:
52 
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.
56 
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.
60 
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}.
66 
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.
70 
71 	o Otherwise return the error <<bfd_error_invalid_target>> to
72 	<<bfd_openr>>.
73 
74 	o <<bfd_openr>> attempts to open the file using
75 	<<bfd_open_file>>, and returns the BFD.
76 
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
86 */
87 
88 /*
89 
90 INODE
91 	bfd_target,  , Targets, Targets
92 DOCDD
93 SUBSECTION
94 	bfd_target
95 
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.
100 
101 	Every BFD points to a target structure with its <<xvec>>
102 	member.
103 
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.
110 
111 	They make the documentation (more) unpleasant to read, so if
112 	someone wants to fix this and not break the above, please do.
113 
114 .#define BFD_SEND(bfd, message, arglist) \
115 .  ((*((bfd)->xvec->message)) arglist)
116 .
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
124 
125 	For operations which index on the BFD format:
126 
127 .#define BFD_SEND_FMT(bfd, message, arglist) \
128 .  (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)
129 .
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
137 .
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.
142 
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!
146 
147 .enum bfd_flavour
148 .{
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
173 .};
174 .
175 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
176 .
177 .{* Forward declaration.  *}
178 .typedef struct bfd_link_info _bfd_link_info;
179 .
180 .{* Forward declaration.  *}
181 .typedef struct flag_info flag_info;
182 .
183 .typedef struct bfd_target
184 .{
185 .  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
186 .  char *name;
187 .
188 . {* The "flavour" of a back end is a general indication about
189 .    the contents of a file.  *}
190 .  enum bfd_flavour flavour;
191 .
192 .  {* The order of bytes within the data area of a file.  *}
193 .  enum bfd_endian byteorder;
194 .
195 . {* The order of bytes within the header parts of a file.  *}
196 .  enum bfd_endian header_byteorder;
197 .
198 .  {* A mask of all the flags which an executable may have set -
199 .     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
200 .  flagword object_flags;
201 .
202 . {* A mask of all the flags which a section may have set - from
203 .    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
204 .  flagword section_flags;
205 .
206 . {* The character normally found at the front of a symbol.
207 .    (if any), perhaps `_'.  *}
208 .  char symbol_leading_char;
209 .
210 . {* The pad character for file names within an archive header.  *}
211 .  char ar_pad_char;
212 .
213 .  {* The maximum number of characters in an archive header.  *}
214 .  unsigned char ar_max_namelen;
215 .
216 .  {* How well this target matches, used to select between various
217 .     possible targets when more than one target matches.  *}
218 .  unsigned char match_priority;
219 .
220 .  {* Entries for byte swapping for data. These are different from the
221 .     other entry points, since they don't take a BFD as the first argument.
222 .     Certain other handlers could do the same.  *}
223 .  bfd_uint64_t   (*bfd_getx64) (const void *);
224 .  bfd_int64_t    (*bfd_getx_signed_64) (const void *);
225 .  void           (*bfd_putx64) (bfd_uint64_t, void *);
226 .  bfd_vma        (*bfd_getx32) (const void *);
227 .  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
228 .  void           (*bfd_putx32) (bfd_vma, void *);
229 .  bfd_vma        (*bfd_getx16) (const void *);
230 .  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
231 .  void           (*bfd_putx16) (bfd_vma, void *);
232 .
233 .  {* Byte swapping for the headers.  *}
234 .  bfd_uint64_t   (*bfd_h_getx64) (const void *);
235 .  bfd_int64_t    (*bfd_h_getx_signed_64) (const void *);
236 .  void           (*bfd_h_putx64) (bfd_uint64_t, void *);
237 .  bfd_vma        (*bfd_h_getx32) (const void *);
238 .  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
239 .  void           (*bfd_h_putx32) (bfd_vma, void *);
240 .  bfd_vma        (*bfd_h_getx16) (const void *);
241 .  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
242 .  void           (*bfd_h_putx16) (bfd_vma, void *);
243 .
244 .  {* Format dependent routines: these are vectors of entry points
245 .     within the target vector structure, one for each format to check.  *}
246 .
247 .  {* Check the format of a file being read.  Return a <<bfd_target *>> or zero.  *}
248 .  const struct bfd_target *(*_bfd_check_format[bfd_type_end]) (bfd *);
249 .
250 .  {* Set the format of a file being written.  *}
251 .  bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *);
252 .
253 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
254 .  bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *);
255 .
256 The general target vector.  These vectors are initialized using the
257 BFD_JUMP_TABLE macros.
258 .
259 .  {* Generic entry points.  *}
260 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
261 .  NAME##_close_and_cleanup, \
262 .  NAME##_bfd_free_cached_info, \
263 .  NAME##_new_section_hook, \
264 .  NAME##_get_section_contents, \
265 .  NAME##_get_section_contents_in_window
266 .
267 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
268 .  bfd_boolean (*_close_and_cleanup) (bfd *);
269 .  {* Ask the BFD to free all cached information.  *}
270 .  bfd_boolean (*_bfd_free_cached_info) (bfd *);
271 .  {* Called when a new section is created.  *}
272 .  bfd_boolean (*_new_section_hook) (bfd *, sec_ptr);
273 .  {* Read the contents of a section.  *}
274 .  bfd_boolean (*_bfd_get_section_contents)
275 .    (bfd *, sec_ptr, void *, file_ptr, bfd_size_type);
276 .  bfd_boolean (*_bfd_get_section_contents_in_window)
277 .    (bfd *, sec_ptr, bfd_window *, file_ptr, bfd_size_type);
278 .
279 .  {* Entry points to copy private data.  *}
280 .#define BFD_JUMP_TABLE_COPY(NAME) \
281 .  NAME##_bfd_copy_private_bfd_data, \
282 .  NAME##_bfd_merge_private_bfd_data, \
283 .  _bfd_generic_init_private_section_data, \
284 .  NAME##_bfd_copy_private_section_data, \
285 .  NAME##_bfd_copy_private_symbol_data, \
286 .  NAME##_bfd_copy_private_header_data, \
287 .  NAME##_bfd_set_private_flags, \
288 .  NAME##_bfd_print_private_bfd_data
289 .
290 .  {* Called to copy BFD general private data from one object file
291 .     to another.  *}
292 .  bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
293 .  {* Called to merge BFD general private data from one object file
294 .     to a common output file when linking.  *}
295 .  bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, bfd *);
296 .  {* Called to initialize BFD private section data from one object file
297 .     to another.  *}
298 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
299 .  BFD_SEND (obfd, _bfd_init_private_section_data, (ibfd, isec, obfd, osec, link_info))
300 .  bfd_boolean (*_bfd_init_private_section_data)
301 .    (bfd *, sec_ptr, bfd *, sec_ptr, struct bfd_link_info *);
302 .  {* Called to copy BFD private section data from one object file
303 .     to another.  *}
304 .  bfd_boolean (*_bfd_copy_private_section_data)
305 .    (bfd *, sec_ptr, bfd *, sec_ptr);
306 .  {* Called to copy BFD private symbol data from one symbol
307 .     to another.  *}
308 .  bfd_boolean (*_bfd_copy_private_symbol_data)
309 .    (bfd *, asymbol *, bfd *, asymbol *);
310 .  {* Called to copy BFD private header data from one object file
311 .     to another.  *}
312 .  bfd_boolean (*_bfd_copy_private_header_data)
313 .    (bfd *, bfd *);
314 .  {* Called to set private backend flags.  *}
315 .  bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword);
316 .
317 .  {* Called to print private BFD data.  *}
318 .  bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *);
319 .
320 .  {* Core file entry points.  *}
321 .#define BFD_JUMP_TABLE_CORE(NAME) \
322 .  NAME##_core_file_failing_command, \
323 .  NAME##_core_file_failing_signal, \
324 .  NAME##_core_file_matches_executable_p, \
325 .  NAME##_core_file_pid
326 .
327 .  char *      (*_core_file_failing_command) (bfd *);
328 .  int         (*_core_file_failing_signal) (bfd *);
329 .  bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *);
330 .  int         (*_core_file_pid) (bfd *);
331 .
332 .  {* Archive entry points.  *}
333 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
334 .  NAME##_slurp_armap, \
335 .  NAME##_slurp_extended_name_table, \
336 .  NAME##_construct_extended_name_table, \
337 .  NAME##_truncate_arname, \
338 .  NAME##_write_armap, \
339 .  NAME##_read_ar_hdr, \
340 .  NAME##_write_ar_hdr, \
341 .  NAME##_openr_next_archived_file, \
342 .  NAME##_get_elt_at_index, \
343 .  NAME##_generic_stat_arch_elt, \
344 .  NAME##_update_armap_timestamp
345 .
346 .  bfd_boolean (*_bfd_slurp_armap) (bfd *);
347 .  bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *);
348 .  bfd_boolean (*_bfd_construct_extended_name_table)
349 .    (bfd *, char **, bfd_size_type *, const char **);
350 .  void        (*_bfd_truncate_arname) (bfd *, const char *, char *);
351 .  bfd_boolean (*write_armap)
352 .    (bfd *, unsigned int, struct orl *, unsigned int, int);
353 .  void *      (*_bfd_read_ar_hdr_fn) (bfd *);
354 .  bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
355 .  bfd *       (*openr_next_archived_file) (bfd *, bfd *);
356 .#define bfd_get_elt_at_index(b,i) BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
357 .  bfd *       (*_bfd_get_elt_at_index) (bfd *, symindex);
358 .  int         (*_bfd_stat_arch_elt) (bfd *, struct stat *);
359 .  bfd_boolean (*_bfd_update_armap_timestamp) (bfd *);
360 .
361 .  {* Entry points used for symbols.  *}
362 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
363 .  NAME##_get_symtab_upper_bound, \
364 .  NAME##_canonicalize_symtab, \
365 .  NAME##_make_empty_symbol, \
366 .  NAME##_print_symbol, \
367 .  NAME##_get_symbol_info, \
368 .  NAME##_bfd_is_local_label_name, \
369 .  NAME##_bfd_is_target_special_symbol, \
370 .  NAME##_get_lineno, \
371 .  NAME##_find_nearest_line, \
372 .  _bfd_generic_find_nearest_line_discriminator, \
373 .  _bfd_generic_find_line, \
374 .  NAME##_find_inliner_info, \
375 .  NAME##_bfd_make_debug_symbol, \
376 .  NAME##_read_minisymbols, \
377 .  NAME##_minisymbol_to_symbol
378 .
379 .  long        (*_bfd_get_symtab_upper_bound) (bfd *);
380 .  long        (*_bfd_canonicalize_symtab)
381 .    (bfd *, struct bfd_symbol **);
382 .  struct bfd_symbol *
383 .              (*_bfd_make_empty_symbol) (bfd *);
384 .  void        (*_bfd_print_symbol)
385 .    (bfd *, void *, struct bfd_symbol *, bfd_print_symbol_type);
386 .#define bfd_print_symbol(b,p,s,e) BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
387 .  void        (*_bfd_get_symbol_info)
388 .    (bfd *, struct bfd_symbol *, symbol_info *);
389 .#define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
390 .  bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
391 .  bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
392 .  alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
393 .  bfd_boolean (*_bfd_find_nearest_line)
394 .    (bfd *, struct bfd_section *, struct bfd_symbol **, bfd_vma,
395 .     const char **, const char **, unsigned int *);
396 .  bfd_boolean (*_bfd_find_nearest_line_discriminator)
397 .    (bfd *, struct bfd_section *, struct bfd_symbol **, bfd_vma,
398 .     const char **, const char **, unsigned int *, unsigned int *);
399 .  bfd_boolean (*_bfd_find_line)
400 .    (bfd *, struct bfd_symbol **, struct bfd_symbol *,
401 .     const char **, unsigned int *);
402 .  bfd_boolean (*_bfd_find_inliner_info)
403 .    (bfd *, const char **, const char **, unsigned int *);
404 . {* Back-door to allow format-aware applications to create debug symbols
405 .    while using BFD for everything else.  Currently used by the assembler
406 .    when creating COFF files.  *}
407 .  asymbol *   (*_bfd_make_debug_symbol)
408 .    (bfd *, void *, unsigned long size);
409 .#define bfd_read_minisymbols(b, d, m, s) \
410 .  BFD_SEND (b, _read_minisymbols, (b, d, m, s))
411 .  long        (*_read_minisymbols)
412 .    (bfd *, bfd_boolean, void **, unsigned int *);
413 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
414 .  BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
415 .  asymbol *   (*_minisymbol_to_symbol)
416 .    (bfd *, bfd_boolean, const void *, asymbol *);
417 .
418 .  {* Routines for relocs.  *}
419 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
420 .  NAME##_get_reloc_upper_bound, \
421 .  NAME##_canonicalize_reloc, \
422 .  NAME##_bfd_reloc_type_lookup, \
423 .  NAME##_bfd_reloc_name_lookup
424 .
425 .  long        (*_get_reloc_upper_bound) (bfd *, sec_ptr);
426 .  long        (*_bfd_canonicalize_reloc)
427 .    (bfd *, sec_ptr, arelent **, struct bfd_symbol **);
428 .  {* See documentation on reloc types.  *}
429 .  reloc_howto_type *
430 .              (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
431 .  reloc_howto_type *
432 .              (*reloc_name_lookup) (bfd *, const char *);
433 .
434 .
435 .  {* Routines used when writing an object file.  *}
436 .#define BFD_JUMP_TABLE_WRITE(NAME) \
437 .  NAME##_set_arch_mach, \
438 .  NAME##_set_section_contents
439 .
440 .  bfd_boolean (*_bfd_set_arch_mach)
441 .    (bfd *, enum bfd_architecture, unsigned long);
442 .  bfd_boolean (*_bfd_set_section_contents)
443 .    (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type);
444 .
445 .  {* Routines used by the linker.  *}
446 .#define BFD_JUMP_TABLE_LINK(NAME) \
447 .  NAME##_sizeof_headers, \
448 .  NAME##_bfd_get_relocated_section_contents, \
449 .  NAME##_bfd_relax_section, \
450 .  NAME##_bfd_link_hash_table_create, \
451 .  NAME##_bfd_link_hash_table_free, \
452 .  NAME##_bfd_link_add_symbols, \
453 .  NAME##_bfd_link_just_syms, \
454 .  NAME##_bfd_copy_link_hash_symbol_type, \
455 .  NAME##_bfd_final_link, \
456 .  NAME##_bfd_link_split_section, \
457 .  NAME##_bfd_gc_sections, \
458 .  NAME##_bfd_lookup_section_flags, \
459 .  NAME##_bfd_merge_sections, \
460 .  NAME##_bfd_is_group_section, \
461 .  NAME##_bfd_discard_group, \
462 .  NAME##_section_already_linked, \
463 .  NAME##_bfd_define_common_symbol
464 .
465 .  int         (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
466 .  bfd_byte *  (*_bfd_get_relocated_section_contents)
467 .    (bfd *, struct bfd_link_info *, struct bfd_link_order *,
468 .     bfd_byte *, bfd_boolean, struct bfd_symbol **);
469 .
470 .  bfd_boolean (*_bfd_relax_section)
471 .    (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
472 .
473 .  {* Create a hash table for the linker.  Different backends store
474 .     different information in this table.  *}
475 .  struct bfd_link_hash_table *
476 .              (*_bfd_link_hash_table_create) (bfd *);
477 .
478 .  {* Release the memory associated with the linker hash table.  *}
479 .  void        (*_bfd_link_hash_table_free) (struct bfd_link_hash_table *);
480 .
481 .  {* Add symbols from this object file into the hash table.  *}
482 .  bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
483 .
484 .  {* Indicate that we are only retrieving symbol values from this section.  *}
485 .  void        (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
486 .
487 .  {* Copy the symbol type of a linker hash table entry.  *}
488 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
489 .  BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
490 .  void (*_bfd_copy_link_hash_symbol_type)
491 .    (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
492 .
493 .  {* Do a link based on the link_order structures attached to each
494 .     section of the BFD.  *}
495 .  bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);
496 .
497 .  {* Should this section be split up into smaller pieces during linking.  *}
498 .  bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);
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 a_out_adobe_vec;
573 extern const bfd_target aix5coff64_vec;
574 extern const bfd_target aout0_big_vec;
575 extern const bfd_target aout_arm_big_vec;
576 extern const bfd_target aout_arm_little_vec;
577 extern const bfd_target aout_mips_big_vec;
578 extern const bfd_target aout_mips_little_vec;
579 extern const bfd_target apollocoff_vec;
580 extern const bfd_target arm_epoc_pe_big_vec;
581 extern const bfd_target arm_epoc_pe_little_vec;
582 extern const bfd_target arm_epoc_pei_big_vec;
583 extern const bfd_target arm_epoc_pei_little_vec;
584 extern const bfd_target arm_wince_pe_big_vec;
585 extern const bfd_target arm_wince_pe_little_vec;
586 extern const bfd_target arm_wince_pei_big_vec;
587 extern const bfd_target arm_wince_pei_little_vec;
588 extern const bfd_target armcoff_big_vec;
589 extern const bfd_target armcoff_little_vec;
590 extern const bfd_target armnetbsd_vec;
591 extern const bfd_target armpe_big_vec;
592 extern const bfd_target armpe_little_vec;
593 extern const bfd_target armpei_big_vec;
594 extern const bfd_target armpei_little_vec;
595 extern const bfd_target b_out_vec_big_host;
596 extern const bfd_target b_out_vec_little_host;
597 extern const bfd_target bfd_pei_ia64_vec;
598 extern const bfd_target bfd_elf32_avr_vec;
599 extern const bfd_target bfd_elf32_bfin_vec;
600 extern const bfd_target bfd_elf32_bfinfdpic_vec;
601 extern const bfd_target bfd_elf32_big_generic_vec;
602 extern const bfd_target bfd_elf32_bigarc_vec;
603 extern const bfd_target bfd_elf32_bigarm_vec;
604 extern const bfd_target bfd_elf32_bigarm_nacl_vec;
605 extern const bfd_target bfd_elf32_bigarm_symbian_vec;
606 extern const bfd_target bfd_elf32_bigarm_vxworks_vec;
607 extern const bfd_target bfd_elf32_bigmips_vec;
608 extern const bfd_target bfd_elf32_bigmips_vxworks_vec;
609 extern const bfd_target bfd_elf32_bigmoxie_vec;
610 extern const bfd_target bfd_elf32_bignios2_vec;
611 extern const bfd_target bfd_elf32_cr16_vec;
612 extern const bfd_target bfd_elf32_cr16c_vec;
613 extern const bfd_target bfd_elf32_cris_vec;
614 extern const bfd_target bfd_elf32_crx_vec;
615 extern const bfd_target bfd_elf32_d10v_vec;
616 extern const bfd_target bfd_elf32_d30v_vec;
617 extern const bfd_target bfd_elf32_dlx_big_vec;
618 extern const bfd_target bfd_elf32_epiphany_vec;
619 extern const bfd_target bfd_elf32_fr30_vec;
620 extern const bfd_target bfd_elf32_frv_vec;
621 extern const bfd_target bfd_elf32_frvfdpic_vec;
622 extern const bfd_target bfd_elf32_h8300_vec;
623 extern const bfd_target bfd_elf32_hppa_linux_vec;
624 extern const bfd_target bfd_elf32_hppa_nbsd_vec;
625 extern const bfd_target bfd_elf32_hppa_vec;
626 extern const bfd_target bfd_elf32_i370_vec;
627 extern const bfd_target bfd_elf32_i386_freebsd_vec;
628 extern const bfd_target bfd_elf32_i386_nacl_vec;
629 extern const bfd_target bfd_elf32_i386_sol2_vec;
630 extern const bfd_target bfd_elf32_i386_vxworks_vec;
631 extern const bfd_target bfd_elf32_i386_vec;
632 extern const bfd_target bfd_elf32_i860_little_vec;
633 extern const bfd_target bfd_elf32_i860_vec;
634 extern const bfd_target bfd_elf32_i960_vec;
635 extern const bfd_target bfd_elf32_ia64_big_vec;
636 extern const bfd_target bfd_elf32_ia64_hpux_big_vec;
637 extern const bfd_target bfd_elf32_ip2k_vec;
638 extern const bfd_target bfd_elf32_iq2000_vec;
639 extern const bfd_target bfd_elf32_lm32_vec;
640 extern const bfd_target bfd_elf32_lm32fdpic_vec;
641 extern const bfd_target bfd_elf32_little_generic_vec;
642 extern const bfd_target bfd_elf32_littlearc_vec;
643 extern const bfd_target bfd_elf32_littlearm_vec;
644 extern const bfd_target bfd_elf32_littlearm_nacl_vec;
645 extern const bfd_target bfd_elf32_littlearm_symbian_vec;
646 extern const bfd_target bfd_elf32_littlearm_vxworks_vec;
647 extern const bfd_target bfd_elf32_littlemips_vec;
648 extern const bfd_target bfd_elf32_littlemips_vxworks_vec;
649 extern const bfd_target bfd_elf32_littlemoxie_vec;
650 extern const bfd_target bfd_elf32_littlenios2_vec;
651 extern const bfd_target bfd_elf32_m32c_vec;
652 extern const bfd_target bfd_elf32_m32r_vec;
653 extern const bfd_target bfd_elf32_m32rle_vec;
654 extern const bfd_target bfd_elf32_m32rlin_vec;
655 extern const bfd_target bfd_elf32_m32rlelin_vec;
656 extern const bfd_target bfd_elf32_m68hc11_vec;
657 extern const bfd_target bfd_elf32_m68hc12_vec;
658 extern const bfd_target bfd_elf32_m68k_vec;
659 extern const bfd_target bfd_elf32_m88k_vec;
660 extern const bfd_target bfd_elf32_mcore_big_vec;
661 extern const bfd_target bfd_elf32_mcore_little_vec;
662 extern const bfd_target bfd_elf32_mep_vec;
663 extern const bfd_target bfd_elf32_mep_little_vec;
664 extern const bfd_target bfd_elf32_metag_vec;
665 extern const bfd_target bfd_elf32_microblazeel_vec;
666 extern const bfd_target bfd_elf32_microblaze_vec;
667 extern const bfd_target bfd_elf32_mn10200_vec;
668 extern const bfd_target bfd_elf32_mn10300_vec;
669 extern const bfd_target bfd_elf32_mt_vec;
670 extern const bfd_target bfd_elf32_msp430_vec;
671 extern const bfd_target bfd_elf32_nbigmips_vec;
672 extern const bfd_target bfd_elf32_nlittlemips_vec;
673 extern const bfd_target bfd_elf32_ntradbigmips_vec;
674 extern const bfd_target bfd_elf32_ntradlittlemips_vec;
675 extern const bfd_target bfd_elf32_ntradbigmips_freebsd_vec;
676 extern const bfd_target bfd_elf32_ntradlittlemips_freebsd_vec;
677 extern const bfd_target bfd_elf32_openrisc_vec;
678 extern const bfd_target bfd_elf32_or32_big_vec;
679 extern const bfd_target bfd_elf32_pj_vec;
680 extern const bfd_target bfd_elf32_pjl_vec;
681 extern const bfd_target bfd_elf32_powerpc_vec;
682 extern const bfd_target bfd_elf32_powerpcle_vec;
683 extern const bfd_target bfd_elf32_powerpc_freebsd_vec;
684 extern const bfd_target bfd_elf32_powerpc_vxworks_vec;
685 extern const bfd_target bfd_elf32_rl78_vec;
686 extern const bfd_target bfd_elf32_rx_le_vec;
687 extern const bfd_target bfd_elf32_rx_be_vec;
688 extern const bfd_target bfd_elf32_rx_be_ns_vec;
689 extern const bfd_target bfd_elf32_s390_vec;
690 extern const bfd_target bfd_elf32_bigscore_vec;
691 extern const bfd_target bfd_elf32_littlescore_vec;
692 extern const bfd_target bfd_elf32_sh64_vec;
693 extern const bfd_target bfd_elf32_sh64l_vec;
694 extern const bfd_target bfd_elf32_sh64lin_vec;
695 extern const bfd_target bfd_elf32_sh64blin_vec;
696 extern const bfd_target bfd_elf32_sh64lnbsd_vec;
697 extern const bfd_target bfd_elf32_sh64nbsd_vec;
698 extern const bfd_target bfd_elf32_sh_vec;
699 extern const bfd_target bfd_elf32_shbfd_vec;
700 extern const bfd_target bfd_elf32_shblin_vec;
701 extern const bfd_target bfd_elf32_shfd_vec;
702 extern const bfd_target bfd_elf32_shl_vec;
703 extern const bfd_target bfd_elf32_shl_symbian_vec;
704 extern const bfd_target bfd_elf32_shlin_vec;
705 extern const bfd_target bfd_elf32_shlnbsd_vec;
706 extern const bfd_target bfd_elf32_shlvxworks_vec;
707 extern const bfd_target bfd_elf32_shnbsd_vec;
708 extern const bfd_target bfd_elf32_shvxworks_vec;
709 extern const bfd_target bfd_elf32_sparc_vec;
710 extern const bfd_target bfd_elf32_sparc_sol2_vec;
711 extern const bfd_target bfd_elf32_sparc_vxworks_vec;
712 extern const bfd_target bfd_elf32_spu_vec;
713 extern const bfd_target bfd_elf32_tic6x_be_vec;
714 extern const bfd_target bfd_elf32_tic6x_le_vec;
715 extern const bfd_target bfd_elf32_tic6x_elf_be_vec;
716 extern const bfd_target bfd_elf32_tic6x_elf_le_vec;
717 extern const bfd_target bfd_elf32_tic6x_linux_be_vec;
718 extern const bfd_target bfd_elf32_tic6x_linux_le_vec;
719 extern const bfd_target bfd_elf32_tilegx_be_vec;
720 extern const bfd_target bfd_elf32_tilegx_le_vec;
721 extern const bfd_target bfd_elf32_tilepro_vec;
722 extern const bfd_target bfd_elf32_tradbigmips_vec;
723 extern const bfd_target bfd_elf32_tradlittlemips_vec;
724 extern const bfd_target bfd_elf32_tradbigmips_freebsd_vec;
725 extern const bfd_target bfd_elf32_tradlittlemips_freebsd_vec;
726 extern const bfd_target bfd_elf32_us_cris_vec;
727 extern const bfd_target bfd_elf32_v850_vec;
728 extern const bfd_target bfd_elf32_v850_rh850_vec;
729 extern const bfd_target bfd_elf32_vax_vec;
730 extern const bfd_target bfd_elf32_xc16x_vec;
731 extern const bfd_target bfd_elf32_xgate_vec;
732 extern const bfd_target bfd_elf32_xstormy16_vec;
733 extern const bfd_target bfd_elf32_xtensa_be_vec;
734 extern const bfd_target bfd_elf32_xtensa_le_vec;
735 extern const bfd_target bfd_elf64_alpha_freebsd_vec;
736 extern const bfd_target bfd_elf64_alpha_vec;
737 extern const bfd_target bfd_elf64_big_generic_vec;
738 extern const bfd_target bfd_elf64_bigmips_vec;
739 extern const bfd_target bfd_elf64_bigaarch64_vec;
740 extern const bfd_target bfd_elf64_hppa_linux_vec;
741 extern const bfd_target bfd_elf64_hppa_vec;
742 extern const bfd_target bfd_elf64_ia64_big_vec;
743 extern const bfd_target bfd_elf64_ia64_hpux_big_vec;
744 extern const bfd_target bfd_elf64_ia64_little_vec;
745 extern const bfd_target bfd_elf64_ia64_vms_vec;
746 extern const bfd_target bfd_elf64_little_generic_vec;
747 extern const bfd_target bfd_elf64_littlemips_vec;
748 extern const bfd_target bfd_elf64_littleaarch64_vec;
749 extern const bfd_target bfd_elf64_mmix_vec;
750 extern const bfd_target bfd_elf64_powerpc_vec;
751 extern const bfd_target bfd_elf64_powerpcle_vec;
752 extern const bfd_target bfd_elf64_powerpc_freebsd_vec;
753 extern const bfd_target bfd_elf64_s390_vec;
754 extern const bfd_target bfd_elf64_sh64_vec;
755 extern const bfd_target bfd_elf64_sh64l_vec;
756 extern const bfd_target bfd_elf64_sh64lin_vec;
757 extern const bfd_target bfd_elf64_sh64blin_vec;
758 extern const bfd_target bfd_elf64_sh64lnbsd_vec;
759 extern const bfd_target bfd_elf64_sh64nbsd_vec;
760 extern const bfd_target bfd_elf64_sparc_vec;
761 extern const bfd_target bfd_elf64_sparc_freebsd_vec;
762 extern const bfd_target bfd_elf64_sparc_sol2_vec;
763 extern const bfd_target bfd_elf64_tilegx_be_vec;
764 extern const bfd_target bfd_elf64_tilegx_le_vec;
765 extern const bfd_target bfd_elf64_tradbigmips_vec;
766 extern const bfd_target bfd_elf64_tradlittlemips_vec;
767 extern const bfd_target bfd_elf64_tradbigmips_freebsd_vec;
768 extern const bfd_target bfd_elf64_tradlittlemips_freebsd_vec;
769 extern const bfd_target bfd_elf64_x86_64_freebsd_vec;
770 extern const bfd_target bfd_elf64_x86_64_nacl_vec;
771 extern const bfd_target bfd_elf64_x86_64_sol2_vec;
772 extern const bfd_target bfd_elf64_x86_64_vec;
773 extern const bfd_target bfd_elf32_x86_64_nacl_vec;
774 extern const bfd_target bfd_elf32_x86_64_vec;
775 extern const bfd_target bfd_elf64_l1om_freebsd_vec;
776 extern const bfd_target bfd_elf64_l1om_vec;
777 extern const bfd_target bfd_elf64_k1om_freebsd_vec;
778 extern const bfd_target bfd_elf64_k1om_vec;
779 extern const bfd_target bfd_mmo_vec;
780 extern const bfd_target bfd_powerpc_pe_vec;
781 extern const bfd_target bfd_powerpc_pei_vec;
782 extern const bfd_target bfd_powerpcle_pe_vec;
783 extern const bfd_target bfd_powerpcle_pei_vec;
784 extern const bfd_target cris_aout_vec;
785 extern const bfd_target demo_64_vec;
786 extern const bfd_target ecoff_big_vec;
787 extern const bfd_target ecoff_biglittle_vec;
788 extern const bfd_target ecoff_little_vec;
789 extern const bfd_target ecoffalpha_little_vec;
790 extern const bfd_target go32coff_vec;
791 extern const bfd_target go32stubbedcoff_vec;
792 extern const bfd_target h8300coff_vec;
793 extern const bfd_target h8500coff_vec;
794 extern const bfd_target host_aout_vec;
795 extern const bfd_target hp300bsd_vec;
796 extern const bfd_target hp300hpux_vec;
797 extern const bfd_target i386aout_vec;
798 extern const bfd_target i386bsd_vec;
799 extern const bfd_target i386coff_vec;
800 extern const bfd_target i386dynix_vec;
801 extern const bfd_target i386freebsd_vec;
802 extern const bfd_target i386linux_vec;
803 extern const bfd_target i386lynx_aout_vec;
804 extern const bfd_target i386lynx_coff_vec;
805 extern const bfd_target i386mach3_vec;
806 extern const bfd_target i386msdos_vec;
807 extern const bfd_target i386netbsd_vec;
808 extern const bfd_target i386os9k_vec;
809 extern const bfd_target i386pe_vec;
810 extern const bfd_target i386pei_vec;
811 extern const bfd_target i860coff_vec;
812 extern const bfd_target icoff_big_vec;
813 extern const bfd_target icoff_little_vec;
814 extern const bfd_target ieee_vec;
815 extern const bfd_target m68k4knetbsd_vec;
816 extern const bfd_target m68kaux_coff_vec;
817 extern const bfd_target m68kcoff_vec;
818 extern const bfd_target m68kcoffun_vec;
819 extern const bfd_target m68klinux_vec;
820 extern const bfd_target m68knetbsd_vec;
821 extern const bfd_target m68ksysvcoff_vec;
822 extern const bfd_target m88kbcs_vec;
823 extern const bfd_target m88kmach3_vec;
824 extern const bfd_target m88kopenbsd_vec;
825 extern const bfd_target mach_o_be_vec;
826 extern const bfd_target mach_o_le_vec;
827 extern const bfd_target mach_o_fat_vec;
828 extern const bfd_target mach_o_i386_vec;
829 extern const bfd_target mach_o_x86_64_vec;
830 extern const bfd_target mcore_pe_big_vec;
831 extern const bfd_target mcore_pe_little_vec;
832 extern const bfd_target mcore_pei_big_vec;
833 extern const bfd_target mcore_pei_little_vec;
834 extern const bfd_target mipslpe_vec;
835 extern const bfd_target mipslpei_vec;
836 extern const bfd_target newsos3_vec;
837 extern const bfd_target nlm32_alpha_vec;
838 extern const bfd_target nlm32_i386_vec;
839 extern const bfd_target nlm32_powerpc_vec;
840 extern const bfd_target nlm32_sparc_vec;
841 extern const bfd_target oasys_vec;
842 extern const bfd_target or32coff_big_vec;
843 extern const bfd_target pc532machaout_vec;
844 extern const bfd_target pc532netbsd_vec;
845 extern const bfd_target pdp11_aout_vec;
846 extern const bfd_target pef_vec;
847 extern const bfd_target pef_xlib_vec;
848 extern const bfd_target plugin_vec;
849 extern const bfd_target pmac_xcoff_vec;
850 extern const bfd_target ppcboot_vec;
851 extern const bfd_target riscix_vec;
852 extern const bfd_target rs6000coff64_vec;
853 extern const bfd_target rs6000coff_vec;
854 extern const bfd_target shcoff_small_vec;
855 extern const bfd_target shcoff_vec;
856 extern const bfd_target shlcoff_small_vec;
857 extern const bfd_target shlcoff_vec;
858 extern const bfd_target shlpe_vec;
859 extern const bfd_target shlpei_vec;
860 extern const bfd_target som_vec;
861 extern const bfd_target sparccoff_vec;
862 extern const bfd_target sparcle_aout_vec;
863 extern const bfd_target sparclinux_vec;
864 extern const bfd_target sparclynx_aout_vec;
865 extern const bfd_target sparclynx_coff_vec;
866 extern const bfd_target sparcnetbsd_vec;
867 extern const bfd_target sunos_big_vec;
868 extern const bfd_target sym_vec;
869 extern const bfd_target tic30_aout_vec;
870 extern const bfd_target tic30_coff_vec;
871 extern const bfd_target tic4x_coff0_beh_vec;
872 extern const bfd_target tic4x_coff0_vec;
873 extern const bfd_target tic4x_coff1_beh_vec;
874 extern const bfd_target tic4x_coff1_vec;
875 extern const bfd_target tic4x_coff2_beh_vec;
876 extern const bfd_target tic4x_coff2_vec;
877 extern const bfd_target tic54x_coff0_beh_vec;
878 extern const bfd_target tic54x_coff0_vec;
879 extern const bfd_target tic54x_coff1_beh_vec;
880 extern const bfd_target tic54x_coff1_vec;
881 extern const bfd_target tic54x_coff2_beh_vec;
882 extern const bfd_target tic54x_coff2_vec;
883 extern const bfd_target tic80coff_vec;
884 extern const bfd_target vaxbsd_vec;
885 extern const bfd_target vaxnetbsd_vec;
886 extern const bfd_target vax1knetbsd_vec;
887 extern const bfd_target versados_vec;
888 extern const bfd_target vms_alpha_vec;
889 extern const bfd_target vms_lib_txt_vec;
890 extern const bfd_target w65_vec;
891 extern const bfd_target we32kcoff_vec;
892 extern const bfd_target x86_64pe_vec;
893 extern const bfd_target x86_64pei_vec;
894 extern const bfd_target x86_64coff_vec;
895 extern const bfd_target z80coff_vec;
896 extern const bfd_target z8kcoff_vec;
897 
898 /* These are always included.  */
899 extern const bfd_target srec_vec;
900 extern const bfd_target verilog_vec;
901 extern const bfd_target symbolsrec_vec;
902 extern const bfd_target tekhex_vec;
903 extern const bfd_target binary_vec;
904 extern const bfd_target ihex_vec;
905 
906 /* All of the xvecs for core files.  */
907 extern const bfd_target aix386_core_vec;
908 extern const bfd_target cisco_core_big_vec;
909 extern const bfd_target cisco_core_little_vec;
910 extern const bfd_target hppabsd_core_vec;
911 extern const bfd_target hpux_core_vec;
912 extern const bfd_target irix_core_vec;
913 extern const bfd_target netbsd_core_vec;
914 extern const bfd_target osf_core_vec;
915 extern const bfd_target ptrace_core_vec;
916 extern const bfd_target sco5_core_vec;
917 extern const bfd_target trad_core_vec;
918 
919 extern const bfd_target bfd_elf32_am33lin_vec;
920 static const bfd_target * const _bfd_target_vector[] =
921 {
922 #ifdef SELECT_VECS
923 
924 	SELECT_VECS,
925 
926 #else /* not SELECT_VECS */
927 
928 #ifdef DEFAULT_VECTOR
929 	&DEFAULT_VECTOR,
930 #endif
931 	/* This list is alphabetized to make it easy to compare
932 	   with other vector lists -- the decls above and
933 	   the case statement in configure.in.
934 	   Vectors that don't compile on all systems, or aren't finished,
935 	   should have an entry here with #if 0 around it, to show that
936 	   it wasn't omitted by mistake.  */
937 	&a_out_adobe_vec,
938 #ifdef BFD64
939 	&aix5coff64_vec,
940 #endif
941 	&aout0_big_vec,
942 #if 0
943 	/* We have no way of distinguishing these from other a.out variants.  */
944 	&aout_arm_big_vec,
945 	&aout_arm_little_vec,
946 	/* No one seems to use this.  */
947 	&aout_mips_big_vec,
948 #endif
949 	&aout_mips_little_vec,
950 #if 0
951 	&apollocoff_vec,
952 #endif
953 	&arm_epoc_pe_big_vec,
954 	&arm_epoc_pe_little_vec,
955 	&arm_epoc_pei_big_vec,
956 	&arm_epoc_pei_little_vec,
957 	&arm_wince_pe_big_vec,
958 	&arm_wince_pe_little_vec,
959 	&arm_wince_pei_big_vec,
960 	&arm_wince_pei_little_vec,
961 	&armcoff_big_vec,
962 	&armcoff_little_vec,
963 	&armnetbsd_vec,
964 	&armpe_big_vec,
965 	&armpe_little_vec,
966 	&armpei_big_vec,
967 	&armpei_little_vec,
968 	&b_out_vec_big_host,
969 	&b_out_vec_little_host,
970 #ifdef BFD64
971 	&bfd_pei_ia64_vec,
972 #endif
973 	&bfd_elf32_avr_vec,
974 	&bfd_elf32_bfin_vec,
975 	&bfd_elf32_bfinfdpic_vec,
976 
977 	/* This, and other vectors, may not be used in any *.mt configuration.
978 	   But that does not mean they are unnecessary.  If configured with
979 	   --enable-targets=all, objdump or gdb should be able to examine
980 	   the file even if we don't recognize the machine type.  */
981 	&bfd_elf32_big_generic_vec,
982 	&bfd_elf32_bigarc_vec,
983 	&bfd_elf32_bigarm_vec,
984 	&bfd_elf32_bigarm_symbian_vec,
985 	&bfd_elf32_bigarm_vxworks_vec,
986 	&bfd_elf32_bigmips_vec,
987 	&bfd_elf32_bigmips_vxworks_vec,
988  	&bfd_elf32_bigmoxie_vec,
989  	&bfd_elf32_bignios2_vec,
990 	&bfd_elf32_cr16_vec,
991 	&bfd_elf32_cr16c_vec,
992 	&bfd_elf32_cris_vec,
993 	&bfd_elf32_crx_vec,
994 	&bfd_elf32_d10v_vec,
995 	&bfd_elf32_d30v_vec,
996 	&bfd_elf32_dlx_big_vec,
997 	&bfd_elf32_epiphany_vec,
998 	&bfd_elf32_fr30_vec,
999 	&bfd_elf32_frv_vec,
1000 	&bfd_elf32_frvfdpic_vec,
1001 	&bfd_elf32_h8300_vec,
1002 	&bfd_elf32_hppa_linux_vec,
1003 	&bfd_elf32_hppa_nbsd_vec,
1004 	&bfd_elf32_hppa_vec,
1005 	&bfd_elf32_i370_vec,
1006 	&bfd_elf32_i386_freebsd_vec,
1007 	&bfd_elf32_i386_nacl_vec,
1008 	&bfd_elf32_i386_sol2_vec,
1009 	&bfd_elf32_i386_vxworks_vec,
1010 	&bfd_elf32_i386_vec,
1011 	&bfd_elf32_i860_little_vec,
1012 	&bfd_elf32_i860_vec,
1013 	&bfd_elf32_i960_vec,
1014 #if 0
1015 	&bfd_elf32_ia64_big_vec,
1016 #endif
1017 #ifdef BFD64
1018 	&bfd_elf32_ia64_hpux_big_vec,
1019 #endif
1020 	&bfd_elf32_ip2k_vec,
1021 	&bfd_elf32_iq2000_vec,
1022 	&bfd_elf32_lm32_vec,
1023 	&bfd_elf32_little_generic_vec,
1024 	&bfd_elf32_littlearc_vec,
1025 	&bfd_elf32_littlearm_vec,
1026 	&bfd_elf32_littlearm_symbian_vec,
1027 	&bfd_elf32_littlearm_vxworks_vec,
1028 	&bfd_elf32_littlemips_vec,
1029 	&bfd_elf32_littlemips_vxworks_vec,
1030  	&bfd_elf32_littlemoxie_vec,
1031  	&bfd_elf32_littlenios2_vec,
1032 	&bfd_elf32_m32c_vec,
1033 	&bfd_elf32_m32r_vec,
1034         &bfd_elf32_m32rle_vec,
1035         &bfd_elf32_m32rlin_vec,
1036         &bfd_elf32_m32rlelin_vec,
1037 	&bfd_elf32_m68hc11_vec,
1038 	&bfd_elf32_m68hc12_vec,
1039 	&bfd_elf32_m68k_vec,
1040 	&bfd_elf32_m88k_vec,
1041 	&bfd_elf32_mcore_big_vec,
1042 	&bfd_elf32_mcore_little_vec,
1043 	&bfd_elf32_mep_vec,
1044 	&bfd_elf32_metag_vec,
1045 	&bfd_elf32_microblaze_vec,
1046 	&bfd_elf32_mn10200_vec,
1047 	&bfd_elf32_mn10300_vec,
1048 	&bfd_elf32_mt_vec,
1049 	&bfd_elf32_msp430_vec,
1050 #ifdef BFD64
1051 	&bfd_elf32_nbigmips_vec,
1052 	&bfd_elf32_nlittlemips_vec,
1053 	&bfd_elf32_ntradbigmips_vec,
1054 	&bfd_elf32_ntradlittlemips_vec,
1055 	&bfd_elf32_ntradbigmips_freebsd_vec,
1056 	&bfd_elf32_ntradlittlemips_freebsd_vec,
1057 #endif
1058 	&bfd_elf32_openrisc_vec,
1059 	&bfd_elf32_or32_big_vec,
1060 	&bfd_elf32_pj_vec,
1061 	&bfd_elf32_pjl_vec,
1062 	&bfd_elf32_powerpc_vec,
1063 	&bfd_elf32_powerpc_vxworks_vec,
1064 	&bfd_elf32_powerpcle_vec,
1065 	&bfd_elf32_powerpc_freebsd_vec,
1066 	&bfd_elf32_rl78_vec,
1067 	&bfd_elf32_rx_be_vec,
1068 	&bfd_elf32_rx_be_ns_vec,
1069 	&bfd_elf32_rx_le_vec,
1070 	&bfd_elf32_s390_vec,
1071 #ifdef BFD64
1072 	&bfd_elf32_bigscore_vec,
1073 	&bfd_elf32_littlescore_vec,
1074 #endif
1075         &bfd_elf32_sh_vec,
1076         &bfd_elf32_shbfd_vec,
1077         &bfd_elf32_shblin_vec,
1078         &bfd_elf32_shfd_vec,
1079         &bfd_elf32_shl_vec,
1080         &bfd_elf32_shl_symbian_vec,
1081         &bfd_elf32_shlin_vec,
1082 	&bfd_elf32_shlnbsd_vec,
1083 	&bfd_elf32_shlvxworks_vec,
1084 	&bfd_elf32_shnbsd_vec,
1085 	&bfd_elf32_shvxworks_vec,
1086 #ifdef BFD64
1087 	&bfd_elf32_sh64_vec,
1088 	&bfd_elf32_sh64l_vec,
1089 	&bfd_elf32_sh64lnbsd_vec,
1090 	&bfd_elf32_sh64nbsd_vec,
1091 	&bfd_elf32_sh64lin_vec,
1092 	&bfd_elf32_sh64blin_vec,
1093 #endif
1094 	&bfd_elf32_sparc_vec,
1095 	&bfd_elf32_sparc_sol2_vec,
1096 	&bfd_elf32_sparc_vxworks_vec,
1097 	&bfd_elf32_spu_vec,
1098 	&bfd_elf32_tic6x_be_vec,
1099 	&bfd_elf32_tic6x_le_vec,
1100 	&bfd_elf32_tilegx_be_vec,
1101 	&bfd_elf32_tilegx_le_vec,
1102 	&bfd_elf32_tilepro_vec,
1103 	&bfd_elf32_tradbigmips_vec,
1104 	&bfd_elf32_tradlittlemips_vec,
1105 	&bfd_elf32_tradbigmips_freebsd_vec,
1106 	&bfd_elf32_tradlittlemips_freebsd_vec,
1107 	&bfd_elf32_us_cris_vec,
1108 	&bfd_elf32_v850_vec,
1109 	&bfd_elf32_v850_rh850_vec,
1110 	&bfd_elf32_vax_vec,
1111 	&bfd_elf32_xc16x_vec,
1112 	&bfd_elf32_xgate_vec,
1113 	&bfd_elf32_xstormy16_vec,
1114 	&bfd_elf32_xtensa_be_vec,
1115 	&bfd_elf32_xtensa_le_vec,
1116 #ifdef BFD64
1117 	&bfd_elf64_alpha_freebsd_vec,
1118 	&bfd_elf64_alpha_vec,
1119 	&bfd_elf64_big_generic_vec,
1120 	&bfd_elf64_bigmips_vec,
1121 	&bfd_elf64_bigaarch64_vec,
1122 	&bfd_elf64_hppa_linux_vec,
1123 	&bfd_elf64_hppa_vec,
1124 	&bfd_elf64_ia64_big_vec,
1125 	&bfd_elf64_ia64_hpux_big_vec,
1126 	&bfd_elf64_ia64_little_vec,
1127 	&bfd_elf64_ia64_vms_vec,
1128 	&bfd_elf64_little_generic_vec,
1129 	&bfd_elf64_littlemips_vec,
1130 	&bfd_elf64_littleaarch64_vec,
1131 	&bfd_elf64_mmix_vec,
1132 	&bfd_elf64_powerpc_vec,
1133 	&bfd_elf64_powerpcle_vec,
1134 	&bfd_elf64_powerpc_freebsd_vec,
1135 	&bfd_elf64_s390_vec,
1136 	&bfd_elf64_sh64_vec,
1137 	&bfd_elf64_sh64l_vec,
1138 	&bfd_elf64_sh64lnbsd_vec,
1139 	&bfd_elf64_sh64nbsd_vec,
1140 	&bfd_elf64_sh64lin_vec,
1141 	&bfd_elf64_sh64blin_vec,
1142 	&bfd_elf64_sparc_vec,
1143 	&bfd_elf64_sparc_freebsd_vec,
1144 	&bfd_elf64_sparc_sol2_vec,
1145 	&bfd_elf64_tilegx_be_vec,
1146 	&bfd_elf64_tilegx_le_vec,
1147 	&bfd_elf64_tradbigmips_vec,
1148 	&bfd_elf64_tradlittlemips_vec,
1149 	&bfd_elf64_tradbigmips_freebsd_vec,
1150 	&bfd_elf64_tradlittlemips_freebsd_vec,
1151 	&bfd_elf64_x86_64_freebsd_vec,
1152 	&bfd_elf64_x86_64_nacl_vec,
1153 	&bfd_elf64_x86_64_sol2_vec,
1154 	&bfd_elf64_x86_64_vec,
1155 	&bfd_elf32_x86_64_nacl_vec,
1156 	&bfd_elf32_x86_64_vec,
1157 	&bfd_elf64_l1om_freebsd_vec,
1158 	&bfd_elf64_l1om_vec,
1159 	&bfd_elf64_k1om_freebsd_vec,
1160 	&bfd_elf64_k1om_vec,
1161 	&bfd_mmo_vec,
1162 #endif
1163 	&bfd_powerpc_pe_vec,
1164 	&bfd_powerpc_pei_vec,
1165 	&bfd_powerpcle_pe_vec,
1166 	&bfd_powerpcle_pei_vec,
1167 	&cris_aout_vec,
1168 #ifdef BFD64
1169 	&demo_64_vec,	/* Only compiled if host has long-long support.  */
1170 #endif
1171 	&ecoff_big_vec,
1172 	&ecoff_biglittle_vec,
1173 	&ecoff_little_vec,
1174 #ifdef BFD64
1175 	&ecoffalpha_little_vec,
1176 #endif
1177 	&go32coff_vec,
1178 	&go32stubbedcoff_vec,
1179 	&h8300coff_vec,
1180 	&h8500coff_vec,
1181 #if 0
1182 	/* Since a.out files lack decent magic numbers, no way to recognize
1183 	   which kind of a.out file it is.  */
1184 	&host_aout_vec,
1185 	/* Clashes with sunos_big_vec magic no.  */
1186 	&hp300bsd_vec,
1187 #endif
1188 	&hp300hpux_vec,
1189 	&i386aout_vec,
1190 	&i386bsd_vec,
1191 	&i386coff_vec,
1192 #if 0
1193 	&i386dynix_vec,
1194 #endif
1195 	&i386freebsd_vec,
1196 #if 0
1197 	/* Since a.out files lack decent magic numbers, no way to recognize
1198 	   which kind of a.out file it is.  */
1199 	&i386linux_vec,
1200 #endif
1201 	&i386lynx_aout_vec,
1202 	&i386lynx_coff_vec,
1203 #if 0
1204 	/* No distinguishing features for Mach 3 executables.  */
1205 	&i386mach3_vec,
1206 #endif
1207 	&i386msdos_vec,
1208 	&i386netbsd_vec,
1209 	&i386os9k_vec,
1210 	&i386pe_vec,
1211 	&i386pei_vec,
1212 #ifdef BFD64
1213 	&x86_64coff_vec,
1214 	&x86_64pe_vec,
1215 	&x86_64pei_vec,
1216 #endif
1217 	&i860coff_vec,
1218 	&icoff_big_vec,
1219 	&icoff_little_vec,
1220 	&ieee_vec,
1221 #if 0
1222 	&m68k4knetbsd_vec,
1223 	&m68kaux_coff_vec,
1224 #endif
1225 	&m68kcoff_vec,
1226 	&m68kcoffun_vec,
1227 #if 0
1228 	/* Since a.out files lack decent magic numbers, no way to recognize
1229 	   which kind of a.out file it is.  */
1230 	&m68klinux_vec,
1231 #endif
1232 	&m68knetbsd_vec,
1233 	&m68ksysvcoff_vec,
1234 	&m88kbcs_vec,
1235 	&m88kmach3_vec,
1236 	&m88kopenbsd_vec,
1237 	&mach_o_be_vec,
1238 	&mach_o_le_vec,
1239 	&mach_o_fat_vec,
1240 	&mach_o_i386_vec,
1241 #ifdef BFD64
1242 	&mach_o_x86_64_vec,
1243 #endif
1244 	&mcore_pe_big_vec,
1245 	&mcore_pe_little_vec,
1246 	&mcore_pei_big_vec,
1247 	&mcore_pei_little_vec,
1248 	&mipslpe_vec,
1249 	&mipslpei_vec,
1250 	&newsos3_vec,
1251 #ifdef BFD64
1252 	&nlm32_alpha_vec,
1253 #endif
1254 	&nlm32_i386_vec,
1255 	&nlm32_powerpc_vec,
1256 	&nlm32_sparc_vec,
1257 #if 0
1258 	/* We have no oasys tools anymore, so we can't test any of this
1259 	   anymore. If you want to test the stuff yourself, go ahead...
1260 	   steve@cygnus.com
1261 	   Worse, since there is no magic number for archives, there
1262 	   can be annoying target mis-matches.  */
1263 	&oasys_vec,
1264 #endif
1265 	/* Entry for the OpenRISC family.  */
1266 	&or32coff_big_vec,
1267 
1268 	&pc532machaout_vec,
1269 	&pc532netbsd_vec,
1270 	&pdp11_aout_vec,
1271 	&pef_vec,
1272 	&pef_xlib_vec,
1273 #if BFD_SUPPORTS_PLUGINS
1274 	&plugin_vec,
1275 #endif
1276 #if 0
1277 	/* This has the same magic number as RS/6000.  */
1278 	&pmac_xcoff_vec,
1279 #endif
1280 	&ppcboot_vec,
1281 #if 0
1282 	/* We have no way of distinguishing these from other a.out variants.  */
1283 	&riscix_vec,
1284 #endif
1285 #ifdef BFD64
1286 	&rs6000coff64_vec,
1287 #endif
1288 	&rs6000coff_vec,
1289 	&shcoff_small_vec,
1290 	&shcoff_vec,
1291 	&shlcoff_small_vec,
1292 	&shlcoff_vec,
1293 	&shlpe_vec,
1294 	&shlpei_vec,
1295 	&som_vec,
1296 	&sparccoff_vec,
1297 	&sparcle_aout_vec,
1298 	&sparclinux_vec,
1299 	&sparclynx_aout_vec,
1300 	&sparclynx_coff_vec,
1301 	&sparcnetbsd_vec,
1302 	&sunos_big_vec,
1303 	&sym_vec,
1304 	&tic30_aout_vec,
1305 	&tic30_coff_vec,
1306 	&tic54x_coff0_beh_vec,
1307 	&tic54x_coff0_vec,
1308 	&tic54x_coff1_beh_vec,
1309 	&tic54x_coff1_vec,
1310 	&tic54x_coff2_beh_vec,
1311 	&tic54x_coff2_vec,
1312 	&tic80coff_vec,
1313 	&vaxbsd_vec,
1314 	&vaxnetbsd_vec,
1315 	&vax1knetbsd_vec,
1316 	&versados_vec,
1317 #ifdef BFD64
1318 	&vms_alpha_vec,
1319 #endif
1320         &vms_lib_txt_vec,
1321 	&w65_vec,
1322 	&we32kcoff_vec,
1323 	&z80coff_vec,
1324 	&z8kcoff_vec,
1325 	&bfd_elf32_am33lin_vec,
1326 #endif /* not SELECT_VECS */
1327 
1328 /* Always support S-records, for convenience.  */
1329 	&srec_vec,
1330 	&symbolsrec_vec,
1331 /* And verilog.  */
1332 	&verilog_vec,
1333 /* And tekhex */
1334 	&tekhex_vec,
1335 /* Likewise for binary output.  */
1336 	&binary_vec,
1337 /* Likewise for ihex.  */
1338 	&ihex_vec,
1339 
1340 /* Add any required traditional-core-file-handler.  */
1341 
1342 #ifdef AIX386_CORE
1343 	&aix386_core_vec,
1344 #endif
1345 #if 0
1346 	/* We don't include cisco_core_*_vec.  Although it has a magic number,
1347 	   the magic number isn't at the beginning of the file, and thus
1348 	   might spuriously match other kinds of files.  */
1349 	&cisco_core_big_vec,
1350 	&cisco_core_little_vec,
1351 #endif
1352 #ifdef HPPABSD_CORE
1353 	&hppabsd_core_vec,
1354 #endif
1355 #ifdef HPUX_CORE
1356 	&hpux_core_vec,
1357 #endif
1358 #ifdef IRIX_CORE
1359 	&irix_core_vec,
1360 #endif
1361 #ifdef NETBSD_CORE
1362 	&netbsd_core_vec,
1363 #endif
1364 #ifdef OSF_CORE
1365 	&osf_core_vec,
1366 #endif
1367 #ifdef PTRACE_CORE
1368 	&ptrace_core_vec,
1369 #endif
1370 #ifdef SCO5_CORE
1371 	&sco5_core_vec,
1372 #endif
1373 #ifdef TRAD_CORE
1374 	&trad_core_vec,
1375 #endif
1376 
1377 	NULL /* end of list marker */
1378 };
1379 const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1380 
1381 /* bfd_default_vector[0] contains either the address of the default vector,
1382    if there is one, or zero if there isn't.  */
1383 
1384 const bfd_target *bfd_default_vector[] = {
1385 #ifdef DEFAULT_VECTOR
1386 	&DEFAULT_VECTOR,
1387 #endif
1388 	NULL
1389 };
1390 
1391 /* bfd_associated_vector[] contains the associated target vectors used
1392    to reduce the ambiguity in bfd_check_format_matches.  */
1393 
1394 static const bfd_target *_bfd_associated_vector[] = {
1395 #ifdef ASSOCIATED_VECS
1396 	ASSOCIATED_VECS,
1397 #endif
1398 	NULL
1399 };
1400 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector;
1401 
1402 /* When there is an ambiguous match, bfd_check_format_matches puts the
1403    names of the matching targets in an array.  This variable is the maximum
1404    number of entries that the array could possibly need.  */
1405 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1406 
1407 /* This array maps configuration triplets onto BFD vectors.  */
1408 
1409 struct targmatch
1410 {
1411   /* The configuration triplet.  */
1412   const char *triplet;
1413   /* The BFD vector.  If this is NULL, then the vector is found by
1414      searching forward for the next structure with a non NULL vector
1415      field.  */
1416   const bfd_target *vector;
1417 };
1418 
1419 /* targmatch.h is built by Makefile out of config.bfd.  */
1420 static const struct targmatch bfd_target_match[] = {
1421 #include "targmatch.h"
1422   { NULL, NULL }
1423 };
1424 
1425 /* Find a target vector, given a name or configuration triplet.  */
1426 
1427 static const bfd_target *
1428 find_target (const char *name)
1429 {
1430   const bfd_target * const *target;
1431   const struct targmatch *match;
1432 
1433   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1434     if (strcmp (name, (*target)->name) == 0)
1435       return *target;
1436 
1437   /* If we couldn't match on the exact name, try matching on the
1438      configuration triplet.  FIXME: We should run the triplet through
1439      config.sub first, but that is hard.  */
1440   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1441     {
1442       if (fnmatch (match->triplet, name, 0) == 0)
1443 	{
1444 	  while (match->vector == NULL)
1445 	    ++match;
1446 	  return match->vector;
1447 	}
1448     }
1449 
1450   bfd_set_error (bfd_error_invalid_target);
1451   return NULL;
1452 }
1453 
1454 /*
1455 FUNCTION
1456 	bfd_set_default_target
1457 
1458 SYNOPSIS
1459 	bfd_boolean bfd_set_default_target (const char *name);
1460 
1461 DESCRIPTION
1462 	Set the default target vector to use when recognizing a BFD.
1463 	This takes the name of the target, which may be a BFD target
1464 	name or a configuration triplet.
1465 */
1466 
1467 bfd_boolean
1468 bfd_set_default_target (const char *name)
1469 {
1470   const bfd_target *target;
1471 
1472   if (bfd_default_vector[0] != NULL
1473       && strcmp (name, bfd_default_vector[0]->name) == 0)
1474     return TRUE;
1475 
1476   target = find_target (name);
1477   if (target == NULL)
1478     return FALSE;
1479 
1480   bfd_default_vector[0] = target;
1481   return TRUE;
1482 }
1483 
1484 /*
1485 FUNCTION
1486 	bfd_find_target
1487 
1488 SYNOPSIS
1489 	const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
1490 
1491 DESCRIPTION
1492 	Return a pointer to the transfer vector for the object target
1493 	named @var{target_name}.  If @var{target_name} is <<NULL>>,
1494 	choose the one in the environment variable <<GNUTARGET>>; if
1495 	that is null or not defined, then choose the first entry in the
1496 	target list.  Passing in the string "default" or setting the
1497 	environment variable to "default" will cause the first entry in
1498 	the target list to be returned, and "target_defaulted" will be
1499 	set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1500 	<<bfd_check_format>> to loop over all the targets to find the
1501 	one that matches the file being read.
1502 */
1503 
1504 const bfd_target *
1505 bfd_find_target (const char *target_name, bfd *abfd)
1506 {
1507   const char *targname;
1508   const bfd_target *target;
1509 
1510   if (target_name != NULL)
1511     targname = target_name;
1512   else
1513     targname = getenv ("GNUTARGET");
1514 
1515   /* This is safe; the vector cannot be null.  */
1516   if (targname == NULL || strcmp (targname, "default") == 0)
1517     {
1518       if (bfd_default_vector[0] != NULL)
1519 	target = bfd_default_vector[0];
1520       else
1521 	target = bfd_target_vector[0];
1522       if (abfd)
1523 	{
1524 	  abfd->xvec = target;
1525 	  abfd->target_defaulted = TRUE;
1526 	}
1527       return target;
1528     }
1529 
1530   if (abfd)
1531     abfd->target_defaulted = FALSE;
1532 
1533   target = find_target (targname);
1534   if (target == NULL)
1535     return NULL;
1536 
1537   if (abfd)
1538     abfd->xvec = target;
1539   return target;
1540 }
1541 
1542 /* Helper function for bfd_get_target_info to determine the target's
1543    architecture.  This method handles bfd internal target names as
1544    tuples and triplets.  */
1545 static bfd_boolean
1546 _bfd_find_arch_match (const char *tname, const char **arch,
1547 		      const char **def_target_arch)
1548 {
1549   if (!arch)
1550     return FALSE;
1551 
1552   while (*arch != NULL)
1553     {
1554       const char *in_a = strstr (*arch, tname);
1555       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
1556 
1557       if (in_a && (in_a == *arch || in_a[-1] == ':')
1558           && end_ch == 0)
1559         {
1560           *def_target_arch = *arch;
1561           return TRUE;
1562         }
1563       arch++;
1564     }
1565   return FALSE;
1566 }
1567 
1568 /*
1569 FUNCTION
1570 	bfd_get_target_info
1571 SYNOPSIS
1572 	const bfd_target *bfd_get_target_info (const char *target_name,
1573 					       bfd *abfd,
1574 				 	       bfd_boolean *is_bigendian,
1575 					       int *underscoring,
1576 					       const char **def_target_arch);
1577 DESCRIPTION
1578         Return a pointer to the transfer vector for the object target
1579         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1580         choose the one in the environment variable <<GNUTARGET>>; if
1581         that is null or not defined, then choose the first entry in the
1582         target list.  Passing in the string "default" or setting the
1583         environment variable to "default" will cause the first entry in
1584         the target list to be returned, and "target_defaulted" will be
1585         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1586         <<bfd_check_format>> to loop over all the targets to find the
1587         one that matches the file being read.
1588 	If @var{is_bigendian} is not <<NULL>>, then set this value to target's
1589 	endian mode. True for big-endian, FALSE for little-endian or for
1590 	invalid target.
1591 	If @var{underscoring} is not <<NULL>>, then set this value to target's
1592 	underscoring mode. Zero for none-underscoring, -1 for invalid target,
1593 	else the value of target vector's symbol underscoring.
1594 	If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
1595 	string specified by the target_name.
1596 */
1597 const bfd_target *
1598 bfd_get_target_info (const char *target_name, bfd *abfd,
1599 		     bfd_boolean *is_bigendian,
1600 		     int *underscoring, const char **def_target_arch)
1601 {
1602   const bfd_target *target_vec;
1603 
1604   if (is_bigendian)
1605     *is_bigendian = FALSE;
1606   if (underscoring)
1607     *underscoring = -1;
1608   if (def_target_arch)
1609     *def_target_arch = NULL;
1610   target_vec = bfd_find_target (target_name, abfd);
1611   if (! target_vec)
1612     return NULL;
1613   if (is_bigendian)
1614     *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE
1615 							       : FALSE);
1616   if (underscoring)
1617     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
1618 
1619   if (def_target_arch)
1620     {
1621       const char *tname = target_vec->name;
1622       const char **arches = bfd_arch_list ();
1623 
1624       if (arches && tname)
1625         {
1626           char *hyp = strchr (tname, '-');
1627 
1628           if (hyp != NULL)
1629             {
1630               tname = ++hyp;
1631 
1632 	      /* Make sure we detect architecture names
1633 		 for triplets like "pe-arm-wince-little".  */
1634 	      if (!_bfd_find_arch_match (tname, arches, def_target_arch))
1635 		{
1636 		  char new_tname[50];
1637 
1638 		  strcpy (new_tname, hyp);
1639 		  while ((hyp = strrchr (new_tname, '-')) != NULL)
1640 		    {
1641 		      *hyp = 0;
1642 		      if (_bfd_find_arch_match (new_tname, arches,
1643 			  			def_target_arch))
1644 			break;
1645 		    }
1646 		}
1647 	    }
1648 	  else
1649 	    _bfd_find_arch_match (tname, arches, def_target_arch);
1650 	}
1651 
1652       if (arches)
1653         free (arches);
1654     }
1655   return target_vec;
1656 }
1657 
1658 /*
1659 FUNCTION
1660 	bfd_target_list
1661 
1662 SYNOPSIS
1663 	const char ** bfd_target_list (void);
1664 
1665 DESCRIPTION
1666 	Return a freshly malloced NULL-terminated
1667 	vector of the names of all the valid BFD targets. Do not
1668 	modify the names.
1669 
1670 */
1671 
1672 const char **
1673 bfd_target_list (void)
1674 {
1675   int vec_length = 0;
1676   bfd_size_type amt;
1677   const bfd_target * const *target;
1678   const  char **name_list, **name_ptr;
1679 
1680   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1681     vec_length++;
1682 
1683   amt = (vec_length + 1) * sizeof (char **);
1684   name_ptr = name_list = (const  char **) bfd_malloc (amt);
1685 
1686   if (name_list == NULL)
1687     return NULL;
1688 
1689   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1690     if (target == &bfd_target_vector[0]
1691 	|| *target != bfd_target_vector[0])
1692       *name_ptr++ = (*target)->name;
1693 
1694   *name_ptr = NULL;
1695   return name_list;
1696 }
1697 
1698 /*
1699 FUNCTION
1700 	bfd_seach_for_target
1701 
1702 SYNOPSIS
1703 	const bfd_target *bfd_search_for_target
1704 	  (int (*search_func) (const bfd_target *, void *),
1705 	   void *);
1706 
1707 DESCRIPTION
1708 	Return a pointer to the first transfer vector in the list of
1709 	transfer vectors maintained by BFD that produces a non-zero
1710 	result when passed to the function @var{search_func}.  The
1711 	parameter @var{data} is passed, unexamined, to the search
1712 	function.
1713 */
1714 
1715 const bfd_target *
1716 bfd_search_for_target (int (*search_func) (const bfd_target *, void *),
1717 		       void *data)
1718 {
1719   const bfd_target * const *target;
1720 
1721   for (target = bfd_target_vector; *target != NULL; target ++)
1722     if (search_func (*target, data))
1723       return *target;
1724 
1725   return NULL;
1726 }
1727