xref: /netbsd-src/external/gpl3/binutils/dist/bfd/targets.c (revision dd7241df2fae9da4ea2bd20a68f001fa86ecf909)
1 /* Generic target-file-type support for the BFD library.
2    Copyright (C) 1990-2024 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 "libiberty.h"
24 #include "bfd.h"
25 #include "libbfd.h"
26 #include "fnmatch.h"
27 
28 /*
29    It's okay to see some:
30 #if 0
31    directives in this source file, as targets.c uses them to exclude
32    certain BFD vectors.  This comment is specially formatted to catch
33    users who grep for ^#if 0, so please keep it this way!
34 */
35 
36 /*
37 SECTION
38 	Targets
39 
40 DESCRIPTION
41 	Each port of BFD to a different machine requires the creation
42 	of a target back end. All the back end provides to the root
43 	part of BFD is a structure containing pointers to functions
44 	which perform certain low level operations on files. BFD
45 	translates the applications's requests through a pointer into
46 	calls to the back end routines.
47 
48 	When a file is opened with <<bfd_openr>>, its format and
49 	target are unknown. BFD uses various mechanisms to determine
50 	how to interpret the file. The operations performed are:
51 
52 	o Create a BFD by calling the internal routine
53 	<<_bfd_new_bfd>>, then call <<bfd_find_target>> with the
54 	target string supplied to <<bfd_openr>> and the new BFD pointer.
55 
56 	o If a null target string was provided to <<bfd_find_target>>,
57 	look up the environment variable <<GNUTARGET>> and use
58 	that as the target string.
59 
60 	o If the target string is still <<NULL>>, or the target string is
61 	<<default>>, then use the first item in the target vector
62 	as the target type, and set <<target_defaulted>> in the BFD to
63 	cause <<bfd_check_format>> to loop through all the targets.
64 	@xref{bfd_target}.  @xref{Formats}.
65 
66 	o Otherwise, inspect the elements in the target vector
67 	one by one, until a match on target name is found. When found,
68 	use it.
69 
70 	o Otherwise return the error <<bfd_error_invalid_target>> to
71 	<<bfd_openr>>.
72 
73 	o <<bfd_openr>> attempts to open the file using
74 	<<bfd_open_file>>, and returns the BFD.
75 
76 	Once the BFD has been opened and the target selected, the file
77 	format may be determined. This is done by calling
78 	<<bfd_check_format>> on the BFD with a suggested format.
79 	If <<target_defaulted>> has been set, each possible target
80 	type is tried to see if it recognizes the specified format.
81 	<<bfd_check_format>> returns <<TRUE>> when the caller guesses right.
82 @menu
83 @* bfd_target::
84 @end menu
85 */
86 
87 /*
88 
89 INODE
90 	bfd_target,  , Targets, Targets
91 DOCDD
92 SUBSECTION
93 	bfd_target
94 
95 DESCRIPTION
96 	This structure contains everything that BFD knows about a
97 	target. It includes things like its byte order, name, and which
98 	routines to call to do various operations.
99 
100 	Every BFD points to a target structure with its <<xvec>>
101 	member.
102 
103 	The macros below are used to dispatch to functions through the
104 	<<bfd_target>> vector. They are used in a number of macros further
105 	down in @file{bfd.h}, and are also used when calling various
106 	routines by hand inside the BFD implementation.  The @var{arglist}
107 	argument must be parenthesized; it contains all the arguments
108 	to the called function.
109 
110 	They make the documentation (more) unpleasant to read, so if
111 	someone wants to fix this and not break the above, please do.
112 
113 .#define BFD_SEND(bfd, message, arglist) \
114 .  ((*((bfd)->xvec->message)) arglist)
115 .
116 .#ifdef DEBUG_BFD_SEND
117 .#undef BFD_SEND
118 .#define BFD_SEND(bfd, message, arglist) \
119 .  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
120 .    ((*((bfd)->xvec->message)) arglist) : \
121 .    (bfd_assert (__FILE__,__LINE__), NULL))
122 .#endif
123 
124 	For operations which index on the BFD format:
125 
126 .#define BFD_SEND_FMT(bfd, message, arglist) \
127 .  (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)
128 .
129 .#ifdef DEBUG_BFD_SEND
130 .#undef BFD_SEND_FMT
131 .#define BFD_SEND_FMT(bfd, message, arglist) \
132 .  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
133 .   (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
134 .   (bfd_assert (__FILE__,__LINE__), NULL))
135 .#endif
136 .
137 .{* Defined to TRUE if unused section symbol should be kept.  *}
138 .#ifndef TARGET_KEEP_UNUSED_SECTION_SYMBOLS
139 .#define TARGET_KEEP_UNUSED_SECTION_SYMBOLS true
140 .#endif
141 .
142 	This is the structure which defines the type of BFD this is.  The
143 	<<xvec>> member of the struct <<bfd>> itself points here.  Each
144 	module that implements access to a different target under BFD,
145 	defines one of these.
146 
147 	FIXME, these names should be rationalised with the names of
148 	the entry points which call them. Too bad we can't have one
149 	macro to define them both!
150 
151 EXTERNAL
152 .enum bfd_flavour
153 .{
154 .  {* N.B. Update bfd_flavour_name if you change this.  *}
155 .  bfd_target_unknown_flavour,
156 .  bfd_target_aout_flavour,
157 .  bfd_target_coff_flavour,
158 .  bfd_target_ecoff_flavour,
159 .  bfd_target_xcoff_flavour,
160 .  bfd_target_elf_flavour,
161 .  bfd_target_tekhex_flavour,
162 .  bfd_target_srec_flavour,
163 .  bfd_target_verilog_flavour,
164 .  bfd_target_ihex_flavour,
165 .  bfd_target_som_flavour,
166 .  bfd_target_msdos_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 declarations.  *}
178 .struct flag_info;
179 .typedef void (*bfd_cleanup) (bfd *);
180 .
181 
182 CODE_FRAGMENT
183 .typedef struct bfd_target
184 .{
185 .  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
186 .  const 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 . {* TRUE if unused section symbols should be kept.  *}
221 .  bool keep_unused_section_symbols;
222 .
223 .  {* Entries for byte swapping for data. These are different from the
224 .     other entry points, since they don't take a BFD as the first argument.
225 .     Certain other handlers could do the same.  *}
226 .  uint64_t	  (*bfd_getx64) (const void *);
227 .  int64_t	  (*bfd_getx_signed_64) (const void *);
228 .  void		  (*bfd_putx64) (uint64_t, void *);
229 .  bfd_vma	  (*bfd_getx32) (const void *);
230 .  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
231 .  void		  (*bfd_putx32) (bfd_vma, void *);
232 .  bfd_vma	  (*bfd_getx16) (const void *);
233 .  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
234 .  void		  (*bfd_putx16) (bfd_vma, void *);
235 .
236 .  {* Byte swapping for the headers.  *}
237 .  uint64_t	  (*bfd_h_getx64) (const void *);
238 .  int64_t	  (*bfd_h_getx_signed_64) (const void *);
239 .  void		  (*bfd_h_putx64) (uint64_t, void *);
240 .  bfd_vma	  (*bfd_h_getx32) (const void *);
241 .  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
242 .  void		  (*bfd_h_putx32) (bfd_vma, void *);
243 .  bfd_vma	  (*bfd_h_getx16) (const void *);
244 .  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
245 .  void		  (*bfd_h_putx16) (bfd_vma, void *);
246 .
247 .  {* Format dependent routines: these are vectors of entry points
248 .     within the target vector structure, one for each format to check.  *}
249 .
250 .  {* Check the format of a file being read.  Return a <<bfd_cleanup>> on
251 .     success or zero on failure.  *}
252 .  bfd_cleanup (*_bfd_check_format[bfd_type_end]) (bfd *);
253 .
254 .  {* Set the format of a file being written.  *}
255 .  bool (*_bfd_set_format[bfd_type_end]) (bfd *);
256 .
257 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
258 .  bool (*_bfd_write_contents[bfd_type_end]) (bfd *);
259 .
260 
261 The general target vector.  These vectors are initialized using the
262 BFD_JUMP_TABLE macros.
263 
264 .  {* Generic entry points.  *}
265 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
266 .  NAME##_close_and_cleanup, \
267 .  NAME##_bfd_free_cached_info, \
268 .  NAME##_new_section_hook, \
269 .  NAME##_get_section_contents, \
270 .  NAME##_get_section_contents_in_window
271 .
272 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
273 .  bool (*_close_and_cleanup) (bfd *);
274 .  {* Ask the BFD to free all cached information.  *}
275 .  bool (*_bfd_free_cached_info) (bfd *);
276 .  {* Called when a new section is created.  *}
277 .  bool (*_new_section_hook) (bfd *, sec_ptr);
278 .  {* Read the contents of a section.  *}
279 .  bool (*_bfd_get_section_contents) (bfd *, sec_ptr, void *, file_ptr,
280 .				      bfd_size_type);
281 .  bool (*_bfd_get_section_contents_in_window) (bfd *, sec_ptr, bfd_window *,
282 .						file_ptr, bfd_size_type);
283 .
284 .  {* Entry points to copy private data.  *}
285 .#define BFD_JUMP_TABLE_COPY(NAME) \
286 .  NAME##_bfd_copy_private_bfd_data, \
287 .  NAME##_bfd_merge_private_bfd_data, \
288 .  _bfd_generic_init_private_section_data, \
289 .  NAME##_bfd_copy_private_section_data, \
290 .  NAME##_bfd_copy_private_symbol_data, \
291 .  NAME##_bfd_copy_private_header_data, \
292 .  NAME##_bfd_set_private_flags, \
293 .  NAME##_bfd_print_private_bfd_data
294 .
295 .  {* Called to copy BFD general private data from one object file
296 .     to another.  *}
297 .  bool (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
298 .  {* Called to merge BFD general private data from one object file
299 .     to a common output file when linking.  *}
300 .  bool (*_bfd_merge_private_bfd_data) (bfd *, struct bfd_link_info *);
301 .  {* Called to initialize BFD private section data from one object file
302 .     to another.  *}
303 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
304 .	BFD_SEND (obfd, _bfd_init_private_section_data, \
305 .		  (ibfd, isec, obfd, osec, link_info))
306 .  bool (*_bfd_init_private_section_data) (bfd *, sec_ptr, bfd *, sec_ptr,
307 .					   struct bfd_link_info *);
308 .  {* Called to copy BFD private section data from one object file
309 .     to another.  *}
310 .  bool (*_bfd_copy_private_section_data) (bfd *, sec_ptr, bfd *, sec_ptr);
311 .  {* Called to copy BFD private symbol data from one symbol
312 .     to another.  *}
313 .  bool (*_bfd_copy_private_symbol_data) (bfd *, asymbol *,
314 .					  bfd *, asymbol *);
315 .  {* Called to copy BFD private header data from one object file
316 .     to another.  *}
317 .  bool (*_bfd_copy_private_header_data) (bfd *, bfd *);
318 .  {* Called to set private backend flags.  *}
319 .  bool (*_bfd_set_private_flags) (bfd *, flagword);
320 .
321 .  {* Called to print private BFD data.  *}
322 .  bool (*_bfd_print_private_bfd_data) (bfd *, void *);
323 .
324 .  {* Core file entry points.  *}
325 .#define BFD_JUMP_TABLE_CORE(NAME) \
326 .  NAME##_core_file_failing_command, \
327 .  NAME##_core_file_failing_signal, \
328 .  NAME##_core_file_matches_executable_p, \
329 .  NAME##_core_file_pid
330 .
331 .  char *(*_core_file_failing_command) (bfd *);
332 .  int   (*_core_file_failing_signal) (bfd *);
333 .  bool  (*_core_file_matches_executable_p) (bfd *, bfd *);
334 .  int   (*_core_file_pid) (bfd *);
335 .
336 .  {* Archive entry points.  *}
337 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
338 .  NAME##_slurp_armap, \
339 .  NAME##_slurp_extended_name_table, \
340 .  NAME##_construct_extended_name_table, \
341 .  NAME##_truncate_arname, \
342 .  NAME##_write_armap, \
343 .  NAME##_read_ar_hdr, \
344 .  NAME##_write_ar_hdr, \
345 .  NAME##_openr_next_archived_file, \
346 .  NAME##_get_elt_at_index, \
347 .  NAME##_generic_stat_arch_elt, \
348 .  NAME##_update_armap_timestamp
349 .
350 .  bool (*_bfd_slurp_armap) (bfd *);
351 .  bool (*_bfd_slurp_extended_name_table) (bfd *);
352 .  bool (*_bfd_construct_extended_name_table) (bfd *, char **,
353 .					       bfd_size_type *,
354 .					       const char **);
355 .  void (*_bfd_truncate_arname) (bfd *, const char *, char *);
356 .  bool (*write_armap) (bfd *, unsigned, struct orl *, unsigned, int);
357 .  void *(*_bfd_read_ar_hdr_fn) (bfd *);
358 .  bool (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
359 .  bfd *(*openr_next_archived_file) (bfd *, bfd *);
360 .#define bfd_get_elt_at_index(b,i) \
361 .	BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
362 .  bfd *(*_bfd_get_elt_at_index) (bfd *, symindex);
363 .  int  (*_bfd_stat_arch_elt) (bfd *, struct stat *);
364 .  bool (*_bfd_update_armap_timestamp) (bfd *);
365 .
366 .  {* Entry points used for symbols.  *}
367 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
368 .  NAME##_get_symtab_upper_bound, \
369 .  NAME##_canonicalize_symtab, \
370 .  NAME##_make_empty_symbol, \
371 .  NAME##_print_symbol, \
372 .  NAME##_get_symbol_info, \
373 .  NAME##_get_symbol_version_string, \
374 .  NAME##_bfd_is_local_label_name, \
375 .  NAME##_bfd_is_target_special_symbol, \
376 .  NAME##_get_lineno, \
377 .  NAME##_find_nearest_line, \
378 .  NAME##_find_nearest_line_with_alt, \
379 .  NAME##_find_line, \
380 .  NAME##_find_inliner_info, \
381 .  NAME##_bfd_make_debug_symbol, \
382 .  NAME##_read_minisymbols, \
383 .  NAME##_minisymbol_to_symbol
384 .
385 .  long	(*_bfd_get_symtab_upper_bound) (bfd *);
386 .  long	(*_bfd_canonicalize_symtab) (bfd *, struct bfd_symbol **);
387 .  struct bfd_symbol *
388 .	(*_bfd_make_empty_symbol) (bfd *);
389 .  void	(*_bfd_print_symbol) (bfd *, void *, struct bfd_symbol *,
390 .			      bfd_print_symbol_type);
391 .#define bfd_print_symbol(b,p,s,e) \
392 .	BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
393 .  void	 (*_bfd_get_symbol_info) (bfd *, struct bfd_symbol *, symbol_info *);
394 .#define bfd_get_symbol_info(b,p,e) \
395 .	BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
396 .  const char *
397 .	(*_bfd_get_symbol_version_string) (bfd *, struct bfd_symbol *,
398 .					   bool, bool *);
399 .#define bfd_get_symbol_version_string(b,s,p,h) \
400 .	BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,p,h))
401 .  bool (*_bfd_is_local_label_name) (bfd *, const char *);
402 .  bool (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
403 .  alent *
404 .	(*_get_lineno) (bfd *, struct bfd_symbol *);
405 .  bool (*_bfd_find_nearest_line) (bfd *, struct bfd_symbol **,
406 .				   struct bfd_section *, bfd_vma,
407 .				   const char **, const char **,
408 .				   unsigned int *, unsigned int *);
409 .  bool (*_bfd_find_nearest_line_with_alt) (bfd *, const char *,
410 .					    struct bfd_symbol **,
411 .					    struct bfd_section *, bfd_vma,
412 .					    const char **, const char **,
413 .					    unsigned int *, unsigned int *);
414 .  bool (*_bfd_find_line) (bfd *, struct bfd_symbol **,
415 .			   struct bfd_symbol *, const char **,
416 .			   unsigned int *);
417 .  bool (*_bfd_find_inliner_info)
418 .    (bfd *, const char **, const char **, unsigned int *);
419 . {* Back-door to allow format-aware applications to create debug symbols
420 .    while using BFD for everything else.  Currently used by the assembler
421 .    when creating COFF files.  *}
422 .  asymbol *
423 .	(*_bfd_make_debug_symbol) (bfd *);
424 .#define bfd_read_minisymbols(b, d, m, s) \
425 .	BFD_SEND (b, _read_minisymbols, (b, d, m, s))
426 .  long	(*_read_minisymbols) (bfd *, bool, void **, unsigned int *);
427 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
428 .	BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
429 .  asymbol *
430 .       (*_minisymbol_to_symbol) (bfd *, bool, const void *, asymbol *);
431 .
432 .  {* Routines for relocs.  *}
433 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
434 .  NAME##_get_reloc_upper_bound, \
435 .  NAME##_canonicalize_reloc, \
436 .  NAME##_set_reloc, \
437 .  NAME##_bfd_reloc_type_lookup, \
438 .  NAME##_bfd_reloc_name_lookup
439 .
440 .  long	(*_get_reloc_upper_bound) (bfd *, sec_ptr);
441 .  long	(*_bfd_canonicalize_reloc) (bfd *, sec_ptr, arelent **,
442 .				    struct bfd_symbol **);
443 .  void	(*_bfd_set_reloc) (bfd *, sec_ptr, arelent **, unsigned int);
444 .  {* See documentation on reloc types.  *}
445 .  reloc_howto_type *
446 .	(*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
447 .  reloc_howto_type *
448 .	(*reloc_name_lookup) (bfd *, const char *);
449 .
450 .  {* Routines used when writing an object file.  *}
451 .#define BFD_JUMP_TABLE_WRITE(NAME) \
452 .  NAME##_set_arch_mach, \
453 .  NAME##_set_section_contents
454 .
455 .  bool (*_bfd_set_arch_mach) (bfd *, enum bfd_architecture,
456 .				      unsigned long);
457 .  bool (*_bfd_set_section_contents) (bfd *, sec_ptr, const void *,
458 .				      file_ptr, bfd_size_type);
459 .
460 .  {* Routines used by the linker.  *}
461 .#define BFD_JUMP_TABLE_LINK(NAME) \
462 .  NAME##_sizeof_headers, \
463 .  NAME##_bfd_get_relocated_section_contents, \
464 .  NAME##_bfd_relax_section, \
465 .  NAME##_bfd_link_hash_table_create, \
466 .  NAME##_bfd_link_add_symbols, \
467 .  NAME##_bfd_link_just_syms, \
468 .  NAME##_bfd_copy_link_hash_symbol_type, \
469 .  NAME##_bfd_final_link, \
470 .  NAME##_bfd_link_split_section, \
471 .  NAME##_bfd_link_check_relocs, \
472 .  NAME##_bfd_gc_sections, \
473 .  NAME##_bfd_lookup_section_flags, \
474 .  NAME##_bfd_merge_sections, \
475 .  NAME##_bfd_is_group_section, \
476 .  NAME##_bfd_group_name, \
477 .  NAME##_bfd_discard_group, \
478 .  NAME##_section_already_linked, \
479 .  NAME##_bfd_define_common_symbol, \
480 .  NAME##_bfd_link_hide_symbol, \
481 .  NAME##_bfd_define_start_stop
482 .
483 .  int	(*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
484 .  bfd_byte *
485 .	(*_bfd_get_relocated_section_contents) (bfd *,
486 .					        struct bfd_link_info *,
487 .					        struct bfd_link_order *,
488 .					        bfd_byte *, bool,
489 .					        struct bfd_symbol **);
490 .
491 .  bool (*_bfd_relax_section) (bfd *, struct bfd_section *,
492 .			       struct bfd_link_info *, bool *);
493 .
494 .  {* Create a hash table for the linker.  Different backends store
495 .     different information in this table.  *}
496 .  struct bfd_link_hash_table *
497 .	(*_bfd_link_hash_table_create) (bfd *);
498 .
499 .  {* Add symbols from this object file into the hash table.  *}
500 .  bool (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
501 .
502 .  {* Indicate that we are only retrieving symbol values from this section.  *}
503 .  void (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
504 .
505 .  {* Copy the symbol type and other attributes for a linker script
506 .     assignment of one symbol to another.  *}
507 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
508 .	BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
509 .  void (*_bfd_copy_link_hash_symbol_type) (bfd *,
510 .					    struct bfd_link_hash_entry *,
511 .					    struct bfd_link_hash_entry *);
512 .
513 .  {* Do a link based on the link_order structures attached to each
514 .     section of the BFD.  *}
515 .  bool (*_bfd_final_link) (bfd *, struct bfd_link_info *);
516 .
517 .  {* Should this section be split up into smaller pieces during linking.  *}
518 .  bool (*_bfd_link_split_section) (bfd *, struct bfd_section *);
519 .
520 .  {* Check the relocations in the bfd for validity.  *}
521 .  bool (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *);
522 .
523 .  {* Remove sections that are not referenced from the output.  *}
524 .  bool (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
525 .
526 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
527 .  bool (*_bfd_lookup_section_flags) (struct bfd_link_info *,
528 .				      struct flag_info *, asection *);
529 .
530 .  {* Attempt to merge SEC_MERGE sections.  *}
531 .  bool (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
532 .
533 .  {* Is this section a member of a group?  *}
534 .  bool (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
535 .
536 .  {* The group name, if section is a member of a group.  *}
537 .  const char *(*_bfd_group_name) (bfd *, const struct bfd_section *);
538 .
539 .  {* Discard members of a group.  *}
540 .  bool (*_bfd_discard_group) (bfd *, struct bfd_section *);
541 .
542 .  {* Check if SEC has been already linked during a reloceatable or
543 .     final link.  *}
544 .  bool (*_section_already_linked) (bfd *, asection *,
545 .				    struct bfd_link_info *);
546 .
547 .  {* Define a common symbol.  *}
548 .  bool (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
549 .				      struct bfd_link_hash_entry *);
550 .
551 .  {* Hide a symbol.  *}
552 .  void (*_bfd_link_hide_symbol) (bfd *, struct bfd_link_info *,
553 .				  struct bfd_link_hash_entry *);
554 .
555 .  {* Define a __start, __stop, .startof. or .sizeof. symbol.  *}
556 .  struct bfd_link_hash_entry *
557 .	(*_bfd_define_start_stop) (struct bfd_link_info *, const char *,
558 .				   asection *);
559 .
560 .  {* Routines to handle dynamic symbols and relocs.  *}
561 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
562 .  NAME##_get_dynamic_symtab_upper_bound, \
563 .  NAME##_canonicalize_dynamic_symtab, \
564 .  NAME##_get_synthetic_symtab, \
565 .  NAME##_get_dynamic_reloc_upper_bound, \
566 .  NAME##_canonicalize_dynamic_reloc
567 .
568 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
569 .  long (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
570 .  {* Read in the dynamic symbols.  *}
571 .  long (*_bfd_canonicalize_dynamic_symtab) (bfd *, struct bfd_symbol **);
572 .  {* Create synthetized symbols.  *}
573 .  long (*_bfd_get_synthetic_symtab) (bfd *, long, struct bfd_symbol **,
574 .				      long, struct bfd_symbol **,
575 .				      struct bfd_symbol **);
576 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
577 .  long (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
578 .  {* Read in the dynamic relocs.  *}
579 .  long (*_bfd_canonicalize_dynamic_reloc) (bfd *, arelent **,
580 .					    struct bfd_symbol **);
581 .
582 
583 A pointer to an alternative bfd_target in case the current one is not
584 satisfactory.  This can happen when the target cpu supports both big
585 and little endian code, and target chosen by the linker has the wrong
586 endianness.  The function open_output() in ld/ldlang.c uses this field
587 to find an alternative output format that is suitable.
588 
589 .  {* Opposite endian version of this target.  *}
590 .  const struct bfd_target *alternative_target;
591 .
592 
593 .  {* Data for use by back-end routines, which isn't
594 .     generic enough to belong in this structure.  *}
595 .  const void *backend_data;
596 .
597 .} bfd_target;
598 .
599 .static inline const char *
600 .bfd_get_target (const bfd *abfd)
601 .{
602 .  return abfd->xvec->name;
603 .}
604 .
605 .static inline enum bfd_flavour
606 .bfd_get_flavour (const bfd *abfd)
607 .{
608 .  return abfd->xvec->flavour;
609 .}
610 .
611 .static inline flagword
612 .bfd_applicable_file_flags (const bfd *abfd)
613 .{
614 .  return abfd->xvec->object_flags;
615 .}
616 .
617 .static inline bool
618 .bfd_family_coff (const bfd *abfd)
619 .{
620 .  return (bfd_get_flavour (abfd) == bfd_target_coff_flavour
621 .          || bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
622 .}
623 .
624 .static inline bool
625 .bfd_big_endian (const bfd *abfd)
626 .{
627 .  return abfd->xvec->byteorder == BFD_ENDIAN_BIG;
628 .}
629 .static inline bool
630 .bfd_little_endian (const bfd *abfd)
631 .{
632 .  return abfd->xvec->byteorder == BFD_ENDIAN_LITTLE;
633 .}
634 .
635 .static inline bool
636 .bfd_header_big_endian (const bfd *abfd)
637 .{
638 .  return abfd->xvec->header_byteorder == BFD_ENDIAN_BIG;
639 .}
640 .
641 .static inline bool
642 .bfd_header_little_endian (const bfd *abfd)
643 .{
644 .  return abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE;
645 .}
646 .
647 .static inline flagword
648 .bfd_applicable_section_flags (const bfd *abfd)
649 .{
650 .  return abfd->xvec->section_flags;
651 .}
652 .
653 .static inline char
654 .bfd_get_symbol_leading_char (const bfd *abfd)
655 .{
656 .  return abfd->xvec->symbol_leading_char;
657 .}
658 .
659 .static inline enum bfd_flavour
660 .bfd_asymbol_flavour (const asymbol *sy)
661 .{
662 .  if ((sy->flags & BSF_SYNTHETIC) != 0)
663 .    return bfd_target_unknown_flavour;
664 .  return sy->the_bfd->xvec->flavour;
665 .}
666 .
667 .static inline bool
668 .bfd_keep_unused_section_symbols (const bfd *abfd)
669 .{
670 .  return abfd->xvec->keep_unused_section_symbols;
671 .}
672 .
673 */
674 
675 /* All known xvecs (even those that don't compile on all systems).
676    Alphabetized for easy reference.
677    They are listed a second time below, since
678    we can't intermix extern's and initializers.  */
679 extern const bfd_target aarch64_elf32_be_vec;
680 extern const bfd_target aarch64_elf32_le_vec;
681 extern const bfd_target aarch64_elf64_be_vec;
682 extern const bfd_target aarch64_elf64_be_cloudabi_vec;
683 extern const bfd_target aarch64_elf64_le_vec;
684 extern const bfd_target aarch64_elf64_le_cloudabi_vec;
685 extern const bfd_target aarch64_mach_o_vec;
686 extern const bfd_target aarch64_pei_le_vec;
687 extern const bfd_target aarch64_pe_le_vec;
688 extern const bfd_target alpha_ecoff_le_vec;
689 extern const bfd_target alpha_elf64_vec;
690 extern const bfd_target alpha_elf64_fbsd_vec;
691 extern const bfd_target alpha_vms_vec;
692 extern const bfd_target alpha_vms_lib_txt_vec;
693 extern const bfd_target am33_elf32_linux_vec;
694 extern const bfd_target amdgcn_elf64_le_vec;
695 extern const bfd_target aout_vec;
696 extern const bfd_target arc_elf32_be_vec;
697 extern const bfd_target arc_elf32_le_vec;
698 extern const bfd_target arm_elf32_be_vec;
699 extern const bfd_target arm_elf32_le_vec;
700 extern const bfd_target arm_elf32_fdpic_be_vec;
701 extern const bfd_target arm_elf32_fdpic_le_vec;
702 extern const bfd_target arm_elf32_nacl_be_vec;
703 extern const bfd_target arm_elf32_nacl_le_vec;
704 extern const bfd_target arm_elf32_vxworks_be_vec;
705 extern const bfd_target arm_elf32_vxworks_le_vec;
706 extern const bfd_target arm_mach_o_vec;
707 extern const bfd_target arm_pe_be_vec;
708 extern const bfd_target arm_pe_le_vec;
709 extern const bfd_target arm_pe_wince_be_vec;
710 extern const bfd_target arm_pe_wince_le_vec;
711 extern const bfd_target arm_pei_be_vec;
712 extern const bfd_target arm_pei_le_vec;
713 extern const bfd_target arm_pei_wince_be_vec;
714 extern const bfd_target arm_pei_wince_le_vec;
715 extern const bfd_target avr_elf32_vec;
716 extern const bfd_target bfin_elf32_vec;
717 extern const bfd_target bfin_elf32_fdpic_vec;
718 extern const bfd_target cr16_elf32_vec;
719 extern const bfd_target cris_aout_vec;
720 extern const bfd_target cris_elf32_vec;
721 extern const bfd_target cris_elf32_us_vec;
722 extern const bfd_target crx_elf32_vec;
723 extern const bfd_target csky_elf32_be_vec;
724 extern const bfd_target csky_elf32_le_vec;
725 extern const bfd_target d10v_elf32_vec;
726 extern const bfd_target d30v_elf32_vec;
727 extern const bfd_target dlx_elf32_be_vec;
728 extern const bfd_target elf32_be_vec;
729 extern const bfd_target elf32_le_vec;
730 extern const bfd_target elf64_be_vec;
731 extern const bfd_target elf64_le_vec;
732 extern const bfd_target bpf_elf64_le_vec;
733 extern const bfd_target bpf_elf64_be_vec;
734 extern const bfd_target epiphany_elf32_vec;
735 extern const bfd_target fr30_elf32_vec;
736 extern const bfd_target frv_elf32_vec;
737 extern const bfd_target frv_elf32_fdpic_vec;
738 extern const bfd_target h8300_elf32_vec;
739 extern const bfd_target h8300_elf32_linux_vec;
740 extern const bfd_target hppa_elf32_vec;
741 extern const bfd_target hppa_elf32_linux_vec;
742 extern const bfd_target hppa_elf32_nbsd_vec;
743 extern const bfd_target hppa_elf64_vec;
744 extern const bfd_target hppa_elf64_linux_vec;
745 extern const bfd_target hppa_som_vec;
746 extern const bfd_target i386_aout_vec;
747 extern const bfd_target i386_aout_bsd_vec;
748 extern const bfd_target i386_aout_lynx_vec;
749 extern const bfd_target i386_aout_nbsd_vec;
750 extern const bfd_target i386_coff_vec;
751 extern const bfd_target i386_coff_go32_vec;
752 extern const bfd_target i386_coff_go32stubbed_vec;
753 extern const bfd_target i386_coff_lynx_vec;
754 extern const bfd_target i386_elf32_vec;
755 extern const bfd_target i386_elf32_fbsd_vec;
756 extern const bfd_target i386_elf32_sol2_vec;
757 extern const bfd_target i386_elf32_vxworks_vec;
758 extern const bfd_target i386_mach_o_vec;
759 extern const bfd_target i386_msdos_vec;
760 extern const bfd_target i386_pe_vec;
761 extern const bfd_target i386_pe_big_vec;
762 extern const bfd_target i386_pei_vec;
763 extern const bfd_target iamcu_elf32_vec;
764 extern const bfd_target ia64_elf32_be_vec;
765 extern const bfd_target ia64_elf32_hpux_be_vec;
766 extern const bfd_target ia64_elf64_be_vec;
767 extern const bfd_target ia64_elf64_le_vec;
768 extern const bfd_target ia64_elf64_hpux_be_vec;
769 extern const bfd_target ia64_elf64_vms_vec;
770 extern const bfd_target ia64_pei_vec;
771 extern const bfd_target ip2k_elf32_vec;
772 extern const bfd_target iq2000_elf32_vec;
773 extern const bfd_target kvx_elf32_vec;
774 extern const bfd_target kvx_elf64_vec;
775 extern const bfd_target lm32_elf32_vec;
776 extern const bfd_target lm32_elf32_fdpic_vec;
777 extern const bfd_target loongarch_elf64_vec;
778 extern const bfd_target loongarch_elf32_vec;
779 extern const bfd_target loongarch64_pei_vec;
780 extern const bfd_target m32c_elf32_vec;
781 extern const bfd_target m32r_elf32_vec;
782 extern const bfd_target m32r_elf32_le_vec;
783 extern const bfd_target m32r_elf32_linux_vec;
784 extern const bfd_target m32r_elf32_linux_le_vec;
785 extern const bfd_target m68hc11_elf32_vec;
786 extern const bfd_target m68hc12_elf32_vec;
787 extern const bfd_target m68k_elf32_vec;
788 extern const bfd_target s12z_elf32_vec;
789 extern const bfd_target mach_o_be_vec;
790 extern const bfd_target mach_o_le_vec;
791 extern const bfd_target mach_o_fat_vec;
792 extern const bfd_target mcore_elf32_be_vec;
793 extern const bfd_target mcore_elf32_le_vec;
794 extern const bfd_target mcore_pe_be_vec;
795 extern const bfd_target mcore_pe_le_vec;
796 extern const bfd_target mcore_pei_be_vec;
797 extern const bfd_target mcore_pei_le_vec;
798 extern const bfd_target mep_elf32_vec;
799 extern const bfd_target mep_elf32_le_vec;
800 extern const bfd_target metag_elf32_vec;
801 extern const bfd_target microblaze_elf32_vec;
802 extern const bfd_target microblaze_elf32_le_vec;
803 extern const bfd_target mips_ecoff_be_vec;
804 extern const bfd_target mips_ecoff_le_vec;
805 extern const bfd_target mips_ecoff_bele_vec;
806 extern const bfd_target mips_elf32_be_vec;
807 extern const bfd_target mips_elf32_le_vec;
808 extern const bfd_target mips_elf32_n_be_vec;
809 extern const bfd_target mips_elf32_n_le_vec;
810 extern const bfd_target mips_elf32_ntrad_be_vec;
811 extern const bfd_target mips_elf32_ntrad_le_vec;
812 extern const bfd_target mips_elf32_ntradfbsd_be_vec;
813 extern const bfd_target mips_elf32_ntradfbsd_le_vec;
814 extern const bfd_target mips_elf32_trad_be_vec;
815 extern const bfd_target mips_elf32_trad_le_vec;
816 extern const bfd_target mips_elf32_tradfbsd_be_vec;
817 extern const bfd_target mips_elf32_tradfbsd_le_vec;
818 extern const bfd_target mips_elf32_vxworks_be_vec;
819 extern const bfd_target mips_elf32_vxworks_le_vec;
820 extern const bfd_target mips_elf64_be_vec;
821 extern const bfd_target mips_elf64_le_vec;
822 extern const bfd_target mips_elf64_trad_be_vec;
823 extern const bfd_target mips_elf64_trad_le_vec;
824 extern const bfd_target mips_elf64_tradfbsd_be_vec;
825 extern const bfd_target mips_elf64_tradfbsd_le_vec;
826 extern const bfd_target mmix_elf64_vec;
827 extern const bfd_target mmix_mmo_vec;
828 extern const bfd_target mn10200_elf32_vec;
829 extern const bfd_target mn10300_elf32_vec;
830 extern const bfd_target moxie_elf32_be_vec;
831 extern const bfd_target moxie_elf32_le_vec;
832 extern const bfd_target msp430_elf32_vec;
833 extern const bfd_target msp430_elf32_ti_vec;
834 extern const bfd_target mt_elf32_vec;
835 extern const bfd_target nds32_elf32_be_vec;
836 extern const bfd_target nds32_elf32_le_vec;
837 extern const bfd_target nds32_elf32_linux_be_vec;
838 extern const bfd_target nds32_elf32_linux_le_vec;
839 extern const bfd_target nfp_elf64_vec;
840 extern const bfd_target nios2_elf32_be_vec;
841 extern const bfd_target nios2_elf32_le_vec;
842 extern const bfd_target ns32k_aout_pc532mach_vec;
843 extern const bfd_target ns32k_aout_pc532nbsd_vec;
844 extern const bfd_target or1k_elf32_vec;
845 extern const bfd_target pdb_vec;
846 extern const bfd_target pdp11_aout_vec;
847 extern const bfd_target pef_vec;
848 extern const bfd_target pef_xlib_vec;
849 extern const bfd_target pj_elf32_vec;
850 extern const bfd_target pj_elf32_le_vec;
851 extern const bfd_target plugin_vec;
852 extern const bfd_target powerpc_boot_vec;
853 extern const bfd_target powerpc_elf32_vec;
854 extern const bfd_target powerpc_elf32_le_vec;
855 extern const bfd_target powerpc_elf32_fbsd_vec;
856 extern const bfd_target powerpc_elf32_vxworks_vec;
857 extern const bfd_target powerpc_elf64_vec;
858 extern const bfd_target powerpc_elf64_le_vec;
859 extern const bfd_target powerpc_elf64_fbsd_vec;
860 extern const bfd_target powerpc_elf64_fbsd_le_vec;
861 extern const bfd_target powerpc_xcoff_vec;
862 extern const bfd_target pru_elf32_vec;
863 extern const bfd_target riscv_elf32_vec;
864 extern const bfd_target riscv_elf64_vec;
865 extern const bfd_target riscv_elf32_be_vec;
866 extern const bfd_target riscv_elf64_be_vec;
867 extern const bfd_target riscv64_pei_vec;
868 extern const bfd_target rl78_elf32_vec;
869 extern const bfd_target rs6000_xcoff64_vec;
870 extern const bfd_target rs6000_xcoff64_aix_vec;
871 extern const bfd_target rs6000_xcoff_vec;
872 extern const bfd_target rx_elf32_be_vec;
873 extern const bfd_target rx_elf32_be_ns_vec;
874 extern const bfd_target rx_elf32_le_vec;
875 extern const bfd_target rx_elf32_linux_le_vec;
876 extern const bfd_target s390_elf32_vec;
877 extern const bfd_target s390_elf64_vec;
878 extern const bfd_target score_elf32_be_vec;
879 extern const bfd_target score_elf32_le_vec;
880 extern const bfd_target sh_coff_vec;
881 extern const bfd_target sh_coff_le_vec;
882 extern const bfd_target sh_coff_small_vec;
883 extern const bfd_target sh_coff_small_le_vec;
884 extern const bfd_target sh_elf32_vec;
885 extern const bfd_target sh_elf32_le_vec;
886 extern const bfd_target sh_elf32_fdpic_be_vec;
887 extern const bfd_target sh_elf32_fdpic_le_vec;
888 extern const bfd_target sh_elf32_linux_vec;
889 extern const bfd_target sh_elf32_linux_be_vec;
890 extern const bfd_target sh_elf32_nbsd_vec;
891 extern const bfd_target sh_elf32_nbsd_le_vec;
892 extern const bfd_target sh_elf32_vxworks_vec;
893 extern const bfd_target sh_elf32_vxworks_le_vec;
894 extern const bfd_target sh_pe_le_vec;
895 extern const bfd_target sh_pei_le_vec;
896 extern const bfd_target sparc_elf32_vec;
897 extern const bfd_target sparc_elf32_sol2_vec;
898 extern const bfd_target sparc_elf32_vxworks_vec;
899 extern const bfd_target sparc_elf64_vec;
900 extern const bfd_target sparc_elf64_fbsd_vec;
901 extern const bfd_target sparc_elf64_sol2_vec;
902 extern const bfd_target spu_elf32_vec;
903 extern const bfd_target sym_vec;
904 extern const bfd_target tic30_coff_vec;
905 extern const bfd_target tic4x_coff0_vec;
906 extern const bfd_target tic4x_coff0_beh_vec;
907 extern const bfd_target tic4x_coff1_vec;
908 extern const bfd_target tic4x_coff1_beh_vec;
909 extern const bfd_target tic4x_coff2_vec;
910 extern const bfd_target tic4x_coff2_beh_vec;
911 extern const bfd_target tic54x_coff0_vec;
912 extern const bfd_target tic54x_coff0_beh_vec;
913 extern const bfd_target tic54x_coff1_vec;
914 extern const bfd_target tic54x_coff1_beh_vec;
915 extern const bfd_target tic54x_coff2_vec;
916 extern const bfd_target tic54x_coff2_beh_vec;
917 extern const bfd_target tic6x_elf32_be_vec;
918 extern const bfd_target tic6x_elf32_le_vec;
919 extern const bfd_target tic6x_elf32_c6000_be_vec;
920 extern const bfd_target tic6x_elf32_c6000_le_vec;
921 extern const bfd_target tic6x_elf32_linux_be_vec;
922 extern const bfd_target tic6x_elf32_linux_le_vec;
923 extern const bfd_target tilegx_elf32_be_vec;
924 extern const bfd_target tilegx_elf32_le_vec;
925 extern const bfd_target tilegx_elf64_be_vec;
926 extern const bfd_target tilegx_elf64_le_vec;
927 extern const bfd_target tilepro_elf32_vec;
928 extern const bfd_target v800_elf32_vec;
929 extern const bfd_target v850_elf32_vec;
930 extern const bfd_target ft32_elf32_vec;
931 extern const bfd_target vax_aout_1knbsd_vec;
932 extern const bfd_target vax_aout_nbsd_vec;
933 extern const bfd_target vax_elf32_vec;
934 extern const bfd_target visium_elf32_vec;
935 extern const bfd_target wasm_vec;
936 extern const bfd_target wasm32_elf32_vec;
937 extern const bfd_target x86_64_coff_vec;
938 extern const bfd_target x86_64_elf32_vec;
939 extern const bfd_target x86_64_elf64_vec;
940 extern const bfd_target x86_64_elf64_cloudabi_vec;
941 extern const bfd_target x86_64_elf64_fbsd_vec;
942 extern const bfd_target x86_64_elf64_sol2_vec;
943 extern const bfd_target x86_64_mach_o_vec;
944 extern const bfd_target x86_64_pe_vec;
945 extern const bfd_target x86_64_pe_big_vec;
946 extern const bfd_target x86_64_pei_vec;
947 extern const bfd_target xgate_elf32_vec;
948 extern const bfd_target xstormy16_elf32_vec;
949 extern const bfd_target xtensa_elf32_be_vec;
950 extern const bfd_target xtensa_elf32_le_vec;
951 extern const bfd_target z80_coff_vec;
952 extern const bfd_target z80_elf32_vec;
953 extern const bfd_target z8k_coff_vec;
954 
955 /* These are always included.  */
956 extern const bfd_target srec_vec;
957 extern const bfd_target symbolsrec_vec;
958 extern const bfd_target verilog_vec;
959 extern const bfd_target tekhex_vec;
960 extern const bfd_target binary_vec;
961 extern const bfd_target ihex_vec;
962 
963 /* All of the xvecs for core files.  */
964 extern const bfd_target core_cisco_be_vec;
965 extern const bfd_target core_cisco_le_vec;
966 extern const bfd_target core_hppabsd_vec;
967 extern const bfd_target core_hpux_vec;
968 extern const bfd_target core_irix_vec;
969 extern const bfd_target core_netbsd_vec;
970 extern const bfd_target core_osf_vec;
971 extern const bfd_target core_ptrace_vec;
972 extern const bfd_target core_trad_vec;
973 
974 static const bfd_target * const _bfd_target_vector[] =
975 {
976 #ifdef SELECT_VECS
977 
978 	SELECT_VECS,
979 
980 #else /* not SELECT_VECS */
981 
982 #ifdef DEFAULT_VECTOR
983 	&DEFAULT_VECTOR,
984 #endif
985 	/* This list is alphabetized to make it easy to compare
986 	   with other vector lists -- the decls above and
987 	   the case statement in configure.ac.
988 	   Try to keep it in order when adding new targets, and
989 	   use a name of the form <cpu>_<format>_<other>_<endian>_vec.
990 	   Note that sorting is done as if _<endian>_vec wasn't present.
991 	   Vectors that don't compile on all systems, or aren't finished,
992 	   should have an entry here with #if 0 around it, to show that
993 	   it wasn't omitted by mistake.  */
994 #ifdef BFD64
995 	&aarch64_elf32_be_vec,
996 	&aarch64_elf32_le_vec,
997 	&aarch64_elf64_be_vec,
998 	&aarch64_elf64_be_cloudabi_vec,
999 	&aarch64_elf64_le_vec,
1000 	&aarch64_elf64_le_cloudabi_vec,
1001 	&aarch64_mach_o_vec,
1002 	&aarch64_pe_le_vec,
1003 	&aarch64_pei_le_vec,
1004 #endif
1005 
1006 #ifdef BFD64
1007 	&amdgcn_elf64_le_vec,
1008 #endif
1009 
1010 #ifdef BFD64
1011 	&alpha_ecoff_le_vec,
1012 	&alpha_elf64_vec,
1013 	&alpha_elf64_fbsd_vec,
1014 	&alpha_vms_vec,
1015 #endif
1016 	&alpha_vms_lib_txt_vec,
1017 
1018 	&am33_elf32_linux_vec,
1019 
1020 #if 0
1021 	/* Since a.out files lack decent magic numbers, no way to recognize
1022 	   which kind of a.out file it is.  */
1023 	&aout_vec,
1024 #endif
1025 
1026 	&arc_elf32_be_vec,
1027 	&arc_elf32_le_vec,
1028 
1029 	&arm_elf32_be_vec,
1030 	&arm_elf32_le_vec,
1031 	&arm_elf32_fdpic_be_vec,
1032 	&arm_elf32_fdpic_le_vec,
1033 	&arm_elf32_vxworks_be_vec,
1034 	&arm_elf32_vxworks_le_vec,
1035 	&arm_mach_o_vec,
1036 	&arm_pe_be_vec,
1037 	&arm_pe_le_vec,
1038 	&arm_pe_wince_be_vec,
1039 	&arm_pe_wince_le_vec,
1040 	&arm_pei_be_vec,
1041 	&arm_pei_le_vec,
1042 	&arm_pei_wince_be_vec,
1043 	&arm_pei_wince_le_vec,
1044 
1045 	&avr_elf32_vec,
1046 
1047 	&bfin_elf32_vec,
1048 	&bfin_elf32_fdpic_vec,
1049 
1050 	&cr16_elf32_vec,
1051 
1052 	&cris_aout_vec,
1053 	&cris_elf32_vec,
1054 	&cris_elf32_us_vec,
1055 
1056 	&crx_elf32_vec,
1057 
1058 	&csky_elf32_be_vec,
1059 	&csky_elf32_le_vec,
1060 
1061 	&d10v_elf32_vec,
1062 	&d30v_elf32_vec,
1063 
1064 	&dlx_elf32_be_vec,
1065 
1066 	/* This, and other vectors, may not be used in any *.mt configuration.
1067 	   But that does not mean they are unnecessary.  If configured with
1068 	   --enable-targets=all, objdump or gdb should be able to examine
1069 	   the file even if we don't recognize the machine type.  */
1070 	&elf32_be_vec,
1071 	&elf32_le_vec,
1072 #ifdef BFD64
1073 	&elf64_be_vec,
1074 	&elf64_le_vec,
1075 #endif
1076 
1077 	&epiphany_elf32_vec,
1078 
1079 	&fr30_elf32_vec,
1080 
1081 	&frv_elf32_vec,
1082 	&frv_elf32_fdpic_vec,
1083 
1084 	&h8300_elf32_vec,
1085 	&h8300_elf32_linux_vec,
1086 
1087 	&hppa_elf32_vec,
1088 	&hppa_elf32_linux_vec,
1089 	&hppa_elf32_nbsd_vec,
1090 #ifdef BFD64
1091 	&hppa_elf64_vec,
1092 	&hppa_elf64_linux_vec,
1093 #endif
1094 	&hppa_som_vec,
1095 
1096 	&i386_aout_vec,
1097 	&i386_aout_bsd_vec,
1098 	&i386_aout_lynx_vec,
1099 	&i386_coff_vec,
1100 	&i386_coff_go32_vec,
1101 	&i386_coff_go32stubbed_vec,
1102 	&i386_coff_lynx_vec,
1103 	&i386_elf32_vec,
1104 	&i386_elf32_fbsd_vec,
1105 	&i386_elf32_sol2_vec,
1106 	&i386_elf32_vxworks_vec,
1107 	&i386_mach_o_vec,
1108 	&i386_msdos_vec,
1109 	&i386_pe_vec,
1110 	&i386_pe_big_vec,
1111 	&i386_pei_vec,
1112 
1113 	&iamcu_elf32_vec,
1114 
1115 #ifdef BFD64
1116 	&bpf_elf64_be_vec,
1117 	&bpf_elf64_le_vec,
1118 #endif
1119 
1120 #ifdef BFD64
1121 #if 0
1122 	&ia64_elf32_be_vec,
1123 #endif
1124 	&ia64_elf32_hpux_be_vec,
1125 	&ia64_elf64_be_vec,
1126 	&ia64_elf64_le_vec,
1127 	&ia64_elf64_hpux_be_vec,
1128 	&ia64_elf64_vms_vec,
1129 	&ia64_pei_vec,
1130 #endif
1131 
1132 	&ip2k_elf32_vec,
1133 	&iq2000_elf32_vec,
1134 
1135 #ifdef BFD64
1136 	&kvx_elf32_vec,
1137 	&kvx_elf64_vec,
1138 #endif
1139 
1140 	&lm32_elf32_vec,
1141 
1142 	&m32c_elf32_vec,
1143 
1144 	&m32r_elf32_vec,
1145 	&m32r_elf32_le_vec,
1146 	&m32r_elf32_linux_vec,
1147 	&m32r_elf32_linux_le_vec,
1148 
1149 	&m68hc11_elf32_vec,
1150 	&m68hc12_elf32_vec,
1151 
1152 	&m68k_elf32_vec,
1153 
1154 	&s12z_elf32_vec,
1155 
1156 	&mach_o_be_vec,
1157 	&mach_o_le_vec,
1158 	&mach_o_fat_vec,
1159 
1160 	&mcore_elf32_be_vec,
1161 	&mcore_elf32_le_vec,
1162 	&mcore_pe_be_vec,
1163 	&mcore_pe_le_vec,
1164 	&mcore_pei_be_vec,
1165 	&mcore_pei_le_vec,
1166 
1167 	&mep_elf32_vec,
1168 
1169 	&metag_elf32_vec,
1170 
1171 	&microblaze_elf32_vec,
1172 
1173 	&mips_ecoff_be_vec,
1174 	&mips_ecoff_le_vec,
1175 	&mips_ecoff_bele_vec,
1176 #ifdef BFD64
1177 	&mips_elf32_be_vec,
1178 	&mips_elf32_le_vec,
1179 	&mips_elf32_n_be_vec,
1180 	&mips_elf32_n_le_vec,
1181 	&mips_elf32_ntrad_be_vec,
1182 	&mips_elf32_ntrad_le_vec,
1183 	&mips_elf32_ntradfbsd_be_vec,
1184 	&mips_elf32_ntradfbsd_le_vec,
1185 	&mips_elf32_trad_be_vec,
1186 	&mips_elf32_trad_le_vec,
1187 	&mips_elf32_tradfbsd_be_vec,
1188 	&mips_elf32_tradfbsd_le_vec,
1189 	&mips_elf32_vxworks_be_vec,
1190 	&mips_elf32_vxworks_le_vec,
1191 	&mips_elf64_be_vec,
1192 	&mips_elf64_le_vec,
1193 	&mips_elf64_trad_be_vec,
1194 	&mips_elf64_trad_le_vec,
1195 	&mips_elf64_tradfbsd_be_vec,
1196 	&mips_elf64_tradfbsd_le_vec,
1197 #endif
1198 
1199 #ifdef BFD64
1200 	&mmix_elf64_vec,
1201 	&mmix_mmo_vec,
1202 #endif
1203 
1204 	&mn10200_elf32_vec,
1205 	&mn10300_elf32_vec,
1206 
1207 	&moxie_elf32_be_vec,
1208 	&moxie_elf32_le_vec,
1209 
1210 	&msp430_elf32_vec,
1211 	&msp430_elf32_ti_vec,
1212 
1213 	&mt_elf32_vec,
1214 
1215 	&nds32_elf32_be_vec,
1216 	&nds32_elf32_le_vec,
1217 	&nds32_elf32_linux_be_vec,
1218 	&nds32_elf32_linux_le_vec,
1219 
1220 #ifdef BFD64
1221 	&nfp_elf64_vec,
1222 #endif
1223 
1224 	&nios2_elf32_be_vec,
1225 	&nios2_elf32_le_vec,
1226 
1227 	&ns32k_aout_pc532mach_vec,
1228 	&ns32k_aout_pc532nbsd_vec,
1229 
1230 	&or1k_elf32_vec,
1231 
1232 	&pdb_vec,
1233 
1234 	&pdp11_aout_vec,
1235 
1236 	&pef_vec,
1237 	&pef_xlib_vec,
1238 
1239 	&pj_elf32_vec,
1240 	&pj_elf32_le_vec,
1241 
1242 	&powerpc_boot_vec,
1243 	&powerpc_elf32_vec,
1244 	&powerpc_elf32_le_vec,
1245 	&powerpc_elf32_fbsd_vec,
1246 	&powerpc_elf32_vxworks_vec,
1247 #ifdef BFD64
1248 	&powerpc_elf64_vec,
1249 	&powerpc_elf64_le_vec,
1250 	&powerpc_elf64_fbsd_vec,
1251 	&powerpc_elf64_fbsd_le_vec,
1252 #endif
1253 #if 0
1254 	/* This has the same magic number as RS/6000.  */
1255 	&powerpc_xcoff_vec,
1256 #endif
1257 
1258 	&pru_elf32_vec,
1259 
1260 #ifdef BFD64
1261 	&riscv_elf32_vec,
1262 	&riscv_elf64_vec,
1263 	&riscv_elf32_be_vec,
1264 	&riscv_elf64_be_vec,
1265 	&riscv64_pei_vec,
1266 #endif
1267 	&rl78_elf32_vec,
1268 
1269 #ifdef BFD64
1270 	&rs6000_xcoff64_vec,
1271 	&rs6000_xcoff64_aix_vec,
1272 #endif
1273 	&rs6000_xcoff_vec,
1274 
1275 	&rx_elf32_be_vec,
1276 	&rx_elf32_be_ns_vec,
1277 	&rx_elf32_le_vec,
1278 
1279 	&s390_elf32_vec,
1280 #ifdef BFD64
1281 	&s390_elf64_vec,
1282 #endif
1283 
1284 #ifdef BFD64
1285 	&score_elf32_be_vec,
1286 	&score_elf32_le_vec,
1287 #endif
1288 
1289 	&sh_coff_vec,
1290 	&sh_coff_le_vec,
1291 	&sh_coff_small_vec,
1292 	&sh_coff_small_le_vec,
1293 	&sh_elf32_vec,
1294 	&sh_elf32_le_vec,
1295 	&sh_elf32_fdpic_be_vec,
1296 	&sh_elf32_fdpic_le_vec,
1297 	&sh_elf32_linux_vec,
1298 	&sh_elf32_linux_be_vec,
1299 	&sh_elf32_nbsd_vec,
1300 	&sh_elf32_nbsd_le_vec,
1301 	&sh_elf32_vxworks_vec,
1302 	&sh_elf32_vxworks_le_vec,
1303 	&sh_pe_le_vec,
1304 	&sh_pei_le_vec,
1305 
1306 	&sparc_elf32_vec,
1307 	&sparc_elf32_sol2_vec,
1308 	&sparc_elf32_vxworks_vec,
1309 #ifdef BFD64
1310 	&sparc_elf64_vec,
1311 	&sparc_elf64_fbsd_vec,
1312 	&sparc_elf64_sol2_vec,
1313 #endif
1314 
1315 	&spu_elf32_vec,
1316 
1317 	&sym_vec,
1318 
1319 	&tic30_coff_vec,
1320 	&tic54x_coff0_beh_vec,
1321 	&tic54x_coff0_vec,
1322 	&tic54x_coff1_beh_vec,
1323 	&tic54x_coff1_vec,
1324 	&tic54x_coff2_beh_vec,
1325 	&tic54x_coff2_vec,
1326 	&tic6x_elf32_be_vec,
1327 	&tic6x_elf32_le_vec,
1328 
1329 	&tilegx_elf32_be_vec,
1330 	&tilegx_elf32_le_vec,
1331 #ifdef BFD64
1332 	&tilegx_elf64_be_vec,
1333 	&tilegx_elf64_le_vec,
1334 #endif
1335 	&tilepro_elf32_vec,
1336 
1337 	&ft32_elf32_vec,
1338 
1339 	&v800_elf32_vec,
1340 	&v850_elf32_vec,
1341 
1342 	&vax_aout_1knbsd_vec,
1343 	&vax_aout_nbsd_vec,
1344 	&vax_elf32_vec,
1345 
1346 	&visium_elf32_vec,
1347 
1348 	&wasm_vec,
1349 	&wasm32_elf32_vec,
1350 
1351 #ifdef BFD64
1352 	&x86_64_coff_vec,
1353 	&x86_64_elf32_vec,
1354 	&x86_64_elf64_vec,
1355 	&x86_64_elf64_cloudabi_vec,
1356 	&x86_64_elf64_fbsd_vec,
1357 	&x86_64_elf64_sol2_vec,
1358 	&x86_64_mach_o_vec,
1359 	&x86_64_pe_vec,
1360 	&x86_64_pe_big_vec,
1361 	&x86_64_pei_vec,
1362 #endif
1363 
1364 	&xgate_elf32_vec,
1365 
1366 	&xstormy16_elf32_vec,
1367 
1368 	&xtensa_elf32_be_vec,
1369 	&xtensa_elf32_le_vec,
1370 
1371 	&z80_coff_vec,
1372 	&z80_elf32_vec,
1373 
1374 	&z8k_coff_vec,
1375 
1376 #ifdef BFD64
1377 	&loongarch_elf32_vec,
1378 	&loongarch_elf64_vec,
1379 	&loongarch64_pei_vec,
1380 #endif
1381 
1382 #endif /* not SELECT_VECS */
1383 
1384 /* Always support S-records, for convenience.  */
1385 	&srec_vec,
1386 	&symbolsrec_vec,
1387 /* And verilog.  */
1388 	&verilog_vec,
1389 /* And tekhex */
1390 	&tekhex_vec,
1391 /* Likewise for binary output.  */
1392 	&binary_vec,
1393 /* Likewise for ihex.  */
1394 	&ihex_vec,
1395 
1396 #if BFD_SUPPORTS_PLUGINS
1397 	&plugin_vec,
1398 #endif
1399 
1400 /* Add any required traditional-core-file-handler.  */
1401 
1402 #if 0
1403 	/* We don't include cisco_core_*_vec.  Although it has a magic number,
1404 	   the magic number isn't at the beginning of the file, and thus
1405 	   might spuriously match other kinds of files.  */
1406 	&core_cisco_be_vec,
1407 	&core_cisco_le_vec,
1408 #endif
1409 #ifdef HPPABSD_CORE
1410 	&core_hppabsd_vec,
1411 #endif
1412 #ifdef HPUX_CORE
1413 	&core_hpux_vec,
1414 #endif
1415 #ifdef IRIX_CORE
1416 	&core_irix_vec,
1417 #endif
1418 #ifdef NETBSD_CORE
1419 	&core_netbsd_vec,
1420 #endif
1421 #ifdef OSF_CORE
1422 	&core_osf_vec,
1423 #endif
1424 #ifdef PTRACE_CORE
1425 	&core_ptrace_vec,
1426 #endif
1427 #ifdef TRAD_CORE
1428 	&core_trad_vec,
1429 #endif
1430 
1431 	NULL /* end of list marker */
1432 };
1433 const bfd_target *const *const bfd_target_vector = _bfd_target_vector;
1434 
1435 /* bfd_default_vector[0] contains either the address of the default vector,
1436    if there is one, or zero if there isn't.  */
1437 
1438 const bfd_target *bfd_default_vector[] = {
1439 #ifdef DEFAULT_VECTOR
1440 	&DEFAULT_VECTOR,
1441 #endif
1442 	NULL
1443 };
1444 
1445 /* bfd_associated_vector[] contains the associated target vectors used
1446    to reduce the ambiguity in bfd_check_format_matches.  */
1447 
1448 static const bfd_target *const _bfd_associated_vector[] = {
1449 #ifdef ASSOCIATED_VECS
1450 	ASSOCIATED_VECS,
1451 #endif
1452 	NULL
1453 };
1454 const bfd_target *const *const bfd_associated_vector = _bfd_associated_vector;
1455 
1456 /* When there is an ambiguous match, bfd_check_format_matches puts the
1457    names of the matching targets in an array.  This variable is the maximum
1458    number of entries that the array could possibly need.  */
1459 const size_t _bfd_target_vector_entries = ARRAY_SIZE (_bfd_target_vector);
1460 
1461 /* A place to stash a warning from _bfd_check_format.  */
1462 static struct per_xvec_message *per_xvec_warn[ARRAY_SIZE (_bfd_target_vector)
1463 					      + 1];
1464 
1465 /* This array maps configuration triplets onto BFD vectors.  */
1466 
1467 struct targmatch
1468 {
1469   /* The configuration triplet.  */
1470   const char *triplet;
1471   /* The BFD vector.  If this is NULL, then the vector is found by
1472      searching forward for the next structure with a non NULL vector
1473      field.  */
1474   const bfd_target *vector;
1475 };
1476 
1477 /* targmatch.h is built by Makefile out of config.bfd.  */
1478 static const struct targmatch bfd_target_match[] = {
1479 #include "targmatch.h"
1480   { NULL, NULL }
1481 };
1482 
1483 /*
1484 INTERNAL
1485 .{* Cached _bfd_check_format messages are put in this.  *}
1486 .struct per_xvec_message
1487 .{
1488 .  struct per_xvec_message *next;
1489 .  char message[];
1490 .};
1491 .
1492 INTERNAL_FUNCTION
1493 	_bfd_per_xvec_warn
1494 
1495 SYNOPSIS
1496 	struct per_xvec_message **_bfd_per_xvec_warn (const bfd_target *, size_t);
1497 
1498 DESCRIPTION
1499 	Return a location for the given target xvec to use for
1500 	warnings specific to that target.  If TARG is NULL, returns
1501 	the array of per_xvec_message pointers, otherwise if ALLOC is
1502 	zero, returns a pointer to a pointer to the list of messages
1503 	for TARG, otherwise (both TARG and ALLOC non-zero), allocates
1504 	a new 	per_xvec_message with space for a string of ALLOC
1505 	bytes and returns a pointer to a pointer to it.  May return a
1506 	pointer to a NULL pointer on allocation failure.
1507 */
1508 
1509 struct per_xvec_message **
_bfd_per_xvec_warn(const bfd_target * targ,size_t alloc)1510 _bfd_per_xvec_warn (const bfd_target *targ, size_t alloc)
1511 {
1512   size_t idx;
1513 
1514   if (!targ)
1515     return per_xvec_warn;
1516   for (idx = 0; idx < ARRAY_SIZE (_bfd_target_vector); idx++)
1517     if (_bfd_target_vector[idx] == targ)
1518       break;
1519   struct per_xvec_message **m = per_xvec_warn + idx;
1520   if (!alloc)
1521     return m;
1522   int count = 0;
1523   while (*m)
1524     {
1525       m = &(*m)->next;
1526       count++;
1527     }
1528   /* Anti-fuzzer measure.  Don't cache more than 5 messages.  */
1529   if (count < 5)
1530     {
1531       *m = bfd_malloc (sizeof (**m) + alloc);
1532       if (*m != NULL)
1533 	(*m)->next = NULL;
1534     }
1535   return m;
1536 }
1537 
1538 /* Find a target vector, given a name or configuration triplet.  */
1539 
1540 static const bfd_target *
find_target(const char * name)1541 find_target (const char *name)
1542 {
1543   const bfd_target * const *target;
1544   const struct targmatch *match;
1545 
1546   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1547     if (strcmp (name, (*target)->name) == 0)
1548       return *target;
1549 
1550   /* If we couldn't match on the exact name, try matching on the
1551      configuration triplet.  FIXME: We should run the triplet through
1552      config.sub first, but that is hard.  */
1553   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1554     {
1555       if (fnmatch (match->triplet, name, 0) == 0)
1556 	{
1557 	  while (match->vector == NULL)
1558 	    ++match;
1559 	  return match->vector;
1560 	}
1561     }
1562 
1563   bfd_set_error (bfd_error_invalid_target);
1564   return NULL;
1565 }
1566 
1567 /*
1568 FUNCTION
1569 	bfd_set_default_target
1570 
1571 SYNOPSIS
1572 	bool bfd_set_default_target (const char *name);
1573 
1574 DESCRIPTION
1575 	Set the default target vector to use when recognizing a BFD.
1576 	This takes the name of the target, which may be a BFD target
1577 	name or a configuration triplet.
1578 */
1579 
1580 bool
bfd_set_default_target(const char * name)1581 bfd_set_default_target (const char *name)
1582 {
1583   const bfd_target *target;
1584 
1585   if (bfd_default_vector[0] != NULL
1586       && strcmp (name, bfd_default_vector[0]->name) == 0)
1587     return true;
1588 
1589   target = find_target (name);
1590   if (target == NULL)
1591     return false;
1592 
1593   bfd_default_vector[0] = target;
1594   return true;
1595 }
1596 
1597 /*
1598 FUNCTION
1599 	bfd_find_target
1600 
1601 SYNOPSIS
1602 	const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
1603 
1604 DESCRIPTION
1605 	Return a pointer to the transfer vector for the object target
1606 	named @var{target_name}.  If @var{target_name} is <<NULL>>,
1607 	choose the one in the environment variable <<GNUTARGET>>; if
1608 	that is null or not defined, then choose the first entry in the
1609 	target list.  Passing in the string "default" or setting the
1610 	environment variable to "default" will cause the first entry in
1611 	the target list to be returned, and "target_defaulted" will be
1612 	set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1613 	<<bfd_check_format>> to loop over all the targets to find the
1614 	one that matches the file being read.
1615 */
1616 
1617 const bfd_target *
bfd_find_target(const char * target_name,bfd * abfd)1618 bfd_find_target (const char *target_name, bfd *abfd)
1619 {
1620   const char *targname;
1621   const bfd_target *target;
1622 
1623   if (target_name != NULL)
1624     targname = target_name;
1625   else
1626     targname = getenv ("GNUTARGET");
1627 
1628   /* This is safe; the vector cannot be null.  */
1629   if (targname == NULL || strcmp (targname, "default") == 0)
1630     {
1631       if (bfd_default_vector[0] != NULL)
1632 	target = bfd_default_vector[0];
1633       else
1634 	target = bfd_target_vector[0];
1635       if (abfd)
1636 	{
1637 	  abfd->xvec = target;
1638 	  abfd->target_defaulted = true;
1639 	}
1640       return target;
1641     }
1642 
1643   if (abfd)
1644     abfd->target_defaulted = false;
1645 
1646   target = find_target (targname);
1647   if (target == NULL)
1648     return NULL;
1649 
1650   if (abfd)
1651     abfd->xvec = target;
1652   return target;
1653 }
1654 
1655 /* Helper function for bfd_get_target_info to determine the target's
1656    architecture.  This method handles bfd internal target names as
1657    tuples and triplets.  */
1658 static bool
_bfd_find_arch_match(const char * tname,const char ** arch,const char ** def_target_arch)1659 _bfd_find_arch_match (const char *tname, const char **arch,
1660 		      const char **def_target_arch)
1661 {
1662   if (!arch)
1663     return false;
1664 
1665   while (*arch != NULL)
1666     {
1667       const char *in_a = strstr (*arch, tname);
1668       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
1669 
1670       if (in_a && (in_a == *arch || in_a[-1] == ':')
1671 	  && end_ch == 0)
1672 	{
1673 	  *def_target_arch = *arch;
1674 	  return true;
1675 	}
1676       arch++;
1677     }
1678   return false;
1679 }
1680 
1681 /*
1682 FUNCTION
1683 	bfd_get_target_info
1684 SYNOPSIS
1685 	const bfd_target *bfd_get_target_info (const char *target_name,
1686 					       bfd *abfd,
1687 					       bool *is_bigendian,
1688 					       int *underscoring,
1689 					       const char **def_target_arch);
1690 DESCRIPTION
1691 	Return a pointer to the transfer vector for the object target
1692 	named @var{target_name}.  If @var{target_name} is <<NULL>>,
1693 	choose the one in the environment variable <<GNUTARGET>>; if
1694 	that is null or not defined, then choose the first entry in the
1695 	target list.  Passing in the string "default" or setting the
1696 	environment variable to "default" will cause the first entry in
1697 	the target list to be returned, and "target_defaulted" will be
1698 	set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1699 	<<bfd_check_format>> to loop over all the targets to find the
1700 	one that matches the file being read.
1701 	If @var{is_bigendian} is not <<NULL>>, then set this value to target's
1702 	endian mode. True for big-endian, FALSE for little-endian or for
1703 	invalid target.
1704 	If @var{underscoring} is not <<NULL>>, then set this value to target's
1705 	underscoring mode. Zero for none-underscoring, -1 for invalid target,
1706 	else the value of target vector's symbol underscoring.
1707 	If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
1708 	string specified by the target_name.
1709 */
1710 const bfd_target *
bfd_get_target_info(const char * target_name,bfd * abfd,bool * is_bigendian,int * underscoring,const char ** def_target_arch)1711 bfd_get_target_info (const char *target_name, bfd *abfd,
1712 		     bool *is_bigendian,
1713 		     int *underscoring, const char **def_target_arch)
1714 {
1715   const bfd_target *target_vec;
1716 
1717   if (is_bigendian)
1718     *is_bigendian = false;
1719   if (underscoring)
1720     *underscoring = -1;
1721   if (def_target_arch)
1722     *def_target_arch = NULL;
1723   target_vec = bfd_find_target (target_name, abfd);
1724   if (! target_vec)
1725     return NULL;
1726   if (is_bigendian)
1727     *is_bigendian = target_vec->byteorder == BFD_ENDIAN_BIG;
1728   if (underscoring)
1729     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
1730 
1731   if (def_target_arch)
1732     {
1733       const char *tname = target_vec->name;
1734       const char **arches = bfd_arch_list ();
1735 
1736       if (arches && tname)
1737 	{
1738 	  char *hyp = strchr (tname, '-');
1739 
1740 	  if (hyp != NULL)
1741 	    {
1742 	      tname = ++hyp;
1743 
1744 	      /* Make sure we detect architecture names
1745 		 for triplets like "pe-arm-wince-little".  */
1746 	      if (!_bfd_find_arch_match (tname, arches, def_target_arch))
1747 		{
1748 		  char new_tname[50];
1749 
1750 		  strcpy (new_tname, hyp);
1751 		  while ((hyp = strrchr (new_tname, '-')) != NULL)
1752 		    {
1753 		      *hyp = 0;
1754 		      if (_bfd_find_arch_match (new_tname, arches,
1755 						def_target_arch))
1756 			break;
1757 		    }
1758 		}
1759 	    }
1760 	  else
1761 	    _bfd_find_arch_match (tname, arches, def_target_arch);
1762 	}
1763 
1764       free (arches);
1765     }
1766   return target_vec;
1767 }
1768 
1769 /*
1770 FUNCTION
1771 	bfd_target_list
1772 
1773 SYNOPSIS
1774 	const char ** bfd_target_list (void);
1775 
1776 DESCRIPTION
1777 	Return a freshly malloced NULL-terminated
1778 	vector of the names of all the valid BFD targets. Do not
1779 	modify the names.
1780 
1781 */
1782 
1783 const char **
bfd_target_list(void)1784 bfd_target_list (void)
1785 {
1786   int vec_length = 0;
1787   size_t amt;
1788   const bfd_target * const *target;
1789   const  char **name_list, **name_ptr;
1790 
1791   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1792     vec_length++;
1793 
1794   amt = (vec_length + 1) * sizeof (char **);
1795   name_ptr = name_list = (const  char **) bfd_malloc (amt);
1796 
1797   if (name_list == NULL)
1798     return NULL;
1799 
1800   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1801     if (target == &bfd_target_vector[0]
1802 	|| *target != bfd_target_vector[0])
1803       *name_ptr++ = (*target)->name;
1804 
1805   *name_ptr = NULL;
1806   return name_list;
1807 }
1808 
1809 /*
1810 FUNCTION
1811 	bfd_iterate_over_targets
1812 
1813 SYNOPSIS
1814 	const bfd_target *bfd_iterate_over_targets
1815 	  (int (*func) (const bfd_target *, void *),
1816 	   void *data);
1817 
1818 DESCRIPTION
1819 	Call @var{func} for each target in the list of BFD target
1820 	vectors, passing @var{data} to @var{func}.  Stop iterating if
1821 	@var{func} returns a non-zero result, and return that target
1822 	vector.  Return NULL if @var{func} always returns zero.
1823 */
1824 
1825 const bfd_target *
bfd_iterate_over_targets(int (* func)(const bfd_target *,void *),void * data)1826 bfd_iterate_over_targets (int (*func) (const bfd_target *, void *),
1827 			  void *data)
1828 {
1829   const bfd_target *const *target;
1830 
1831   for (target = bfd_target_vector; *target != NULL; ++target)
1832     if (func (*target, data))
1833       return *target;
1834 
1835   return NULL;
1836 }
1837 
1838 /*
1839 FUNCTION
1840 	bfd_flavour_name
1841 
1842 SYNOPSIS
1843 	const char *bfd_flavour_name (enum bfd_flavour flavour);
1844 
1845 DESCRIPTION
1846 	Return the string form of @var{flavour}.
1847 */
1848 
1849 const char *
bfd_flavour_name(enum bfd_flavour flavour)1850 bfd_flavour_name (enum bfd_flavour flavour)
1851 {
1852   switch (flavour)
1853     {
1854     case bfd_target_unknown_flavour: return "unknown file format";
1855     case bfd_target_aout_flavour: return "a.out";
1856     case bfd_target_coff_flavour: return "COFF";
1857     case bfd_target_ecoff_flavour: return "ECOFF";
1858     case bfd_target_xcoff_flavour: return "XCOFF";
1859     case bfd_target_elf_flavour: return "ELF";
1860     case bfd_target_tekhex_flavour: return "Tekhex";
1861     case bfd_target_srec_flavour: return "Srec";
1862     case bfd_target_verilog_flavour: return "Verilog";
1863     case bfd_target_ihex_flavour: return "Ihex";
1864     case bfd_target_som_flavour: return "SOM";
1865     case bfd_target_msdos_flavour: return "MSDOS";
1866     case bfd_target_evax_flavour: return "Evax";
1867     case bfd_target_mmo_flavour: return "mmo";
1868     case bfd_target_mach_o_flavour: return "MACH_O";
1869     case bfd_target_pef_flavour: return "PEF";
1870     case bfd_target_pef_xlib_flavour: return "PEF_XLIB";
1871     case bfd_target_sym_flavour: return "SYM";
1872     /* There is no "default" case here so that -Wswitch (part of -Wall)
1873        catches missing entries.  */
1874     }
1875 
1876   abort ();
1877 }
1878