targets.c revision 77298
1/* Generic target-file-type support for the BFD library.
2   Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001
3   Free Software Foundation, Inc.
4   Written by Cygnus Support.
5
6This file is part of BFD, the Binary File Descriptor library.
7
8This program is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2 of the License, or
11(at your option) any later version.
12
13This program is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with this program; if not, write to the Free Software
20Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
21
22#include "bfd.h"
23#include "sysdep.h"
24#include "libbfd.h"
25#include "fnmatch.h"
26
27/*
28SECTION
29	Targets
30
31DESCRIPTION
32	Each port of BFD to a different machine requries the creation
33	of a target back end. All the back end provides to the root
34	part of BFD is a structure containing pointers to functions
35	which perform certain low level operations on files. BFD
36	translates the applications's requests through a pointer into
37	calls to the back end routines.
38
39	When a file is opened with <<bfd_openr>>, its format and
40	target are unknown. BFD uses various mechanisms to determine
41	how to interpret the file. The operations performed are:
42
43	o Create a BFD by calling the internal routine
44	<<_bfd_new_bfd>>, then call <<bfd_find_target>> with the
45	target string supplied to <<bfd_openr>> and the new BFD pointer.
46
47	o If a null target string was provided to <<bfd_find_target>>,
48	look up the environment variable <<GNUTARGET>> and use
49	that as the target string.
50
51	o If the target string is still <<NULL>>, or the target string is
52	<<default>>, then use the first item in the target vector
53	as the target type, and set <<target_defaulted>> in the BFD to
54	cause <<bfd_check_format>> to loop through all the targets.
55	@xref{bfd_target}.  @xref{Formats}.
56
57	o Otherwise, inspect the elements in the target vector
58	one by one, until a match on target name is found. When found,
59	use it.
60
61	o Otherwise return the error <<bfd_error_invalid_target>> to
62	<<bfd_openr>>.
63
64	o <<bfd_openr>> attempts to open the file using
65	<<bfd_open_file>>, and returns the BFD.
66
67	Once the BFD has been opened and the target selected, the file
68	format may be determined. This is done by calling
69	<<bfd_check_format>> on the BFD with a suggested format.
70	If <<target_defaulted>> has been set, each possible target
71	type is tried to see if it recognizes the specified format.
72	<<bfd_check_format>> returns <<true>> when the caller guesses right.
73@menu
74@* bfd_target::
75@end menu
76*/
77
78/*
79
80INODE
81	bfd_target,  , Targets, Targets
82DOCDD
83SUBSECTION
84	bfd_target
85
86DESCRIPTION
87	This structure contains everything that BFD knows about a
88	target. It includes things like its byte order, name, and which
89	routines to call to do various operations.
90
91	Every BFD points to a target structure with its <<xvec>>
92	member.
93
94	The macros below are used to dispatch to functions through the
95	<<bfd_target>> vector. They are used in a number of macros further
96	down in @file{bfd.h}, and are also used when calling various
97	routines by hand inside the BFD implementation.  The @var{arglist}
98	argument must be parenthesized; it contains all the arguments
99	to the called function.
100
101	They make the documentation (more) unpleasant to read, so if
102	someone wants to fix this and not break the above, please do.
103
104.#define BFD_SEND(bfd, message, arglist) \
105.               ((*((bfd)->xvec->message)) arglist)
106.
107.#ifdef DEBUG_BFD_SEND
108.#undef BFD_SEND
109.#define BFD_SEND(bfd, message, arglist) \
110.  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
111.    ((*((bfd)->xvec->message)) arglist) : \
112.    (bfd_assert (__FILE__,__LINE__), NULL))
113.#endif
114
115	For operations which index on the BFD format:
116
117.#define BFD_SEND_FMT(bfd, message, arglist) \
118.            (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)
119.
120.#ifdef DEBUG_BFD_SEND
121.#undef BFD_SEND_FMT
122.#define BFD_SEND_FMT(bfd, message, arglist) \
123.  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
124.   (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
125.   (bfd_assert (__FILE__,__LINE__), NULL))
126.#endif
127
128	This is the structure which defines the type of BFD this is.  The
129	<<xvec>> member of the struct <<bfd>> itself points here.  Each
130	module that implements access to a different target under BFD,
131	defines one of these.
132
133	FIXME, these names should be rationalised with the names of
134	the entry points which call them. Too bad we can't have one
135	macro to define them both!
136
137.enum bfd_flavour {
138.  bfd_target_unknown_flavour,
139.  bfd_target_aout_flavour,
140.  bfd_target_coff_flavour,
141.  bfd_target_ecoff_flavour,
142.  bfd_target_xcoff_flavour,
143.  bfd_target_elf_flavour,
144.  bfd_target_ieee_flavour,
145.  bfd_target_nlm_flavour,
146.  bfd_target_oasys_flavour,
147.  bfd_target_tekhex_flavour,
148.  bfd_target_srec_flavour,
149.  bfd_target_ihex_flavour,
150.  bfd_target_som_flavour,
151.  bfd_target_os9k_flavour,
152.  bfd_target_versados_flavour,
153.  bfd_target_msdos_flavour,
154.  bfd_target_ovax_flavour,
155.  bfd_target_evax_flavour
156.};
157.
158.enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
159.
160.{* Forward declaration.  *}
161.typedef struct bfd_link_info _bfd_link_info;
162.
163.typedef struct bfd_target
164.{
165
166Identifies the kind of target, e.g., SunOS4, Ultrix, etc.
167
168.  char *name;
169
170The "flavour" of a back end is a general indication about the contents
171of a file.
172
173.  enum bfd_flavour flavour;
174
175The order of bytes within the data area of a file.
176
177.  enum bfd_endian byteorder;
178
179The order of bytes within the header parts of a file.
180
181.  enum bfd_endian header_byteorder;
182
183A mask of all the flags which an executable may have set -
184from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.
185
186.  flagword object_flags;
187
188A mask of all the flags which a section may have set - from
189the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.
190
191.  flagword section_flags;
192
193The character normally found at the front of a symbol
194(if any), perhaps `_'.
195
196.  char symbol_leading_char;
197
198The pad character for file names within an archive header.
199
200.  char ar_pad_char;
201
202The maximum number of characters in an archive header.
203
204.  unsigned short ar_max_namelen;
205
206Entries for byte swapping for data. These are different from the other
207entry points, since they don't take a BFD asthe first argument.
208Certain other handlers could do the same.
209
210.  bfd_vma      (*bfd_getx64) PARAMS ((const bfd_byte *));
211.  bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
212.  void         (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
213.  bfd_vma      (*bfd_getx32) PARAMS ((const bfd_byte *));
214.  bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
215.  void         (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
216.  bfd_vma      (*bfd_getx16) PARAMS ((const bfd_byte *));
217.  bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
218.  void         (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
219
220Byte swapping for the headers
221
222.  bfd_vma      (*bfd_h_getx64) PARAMS ((const bfd_byte *));
223.  bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
224.  void         (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
225.  bfd_vma      (*bfd_h_getx32) PARAMS ((const bfd_byte *));
226.  bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
227.  void         (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
228.  bfd_vma      (*bfd_h_getx16) PARAMS ((const bfd_byte *));
229.  bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
230.  void         (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
231
232Format dependent routines: these are vectors of entry points
233within the target vector structure, one for each format to check.
234
235Check the format of a file being read.  Return a <<bfd_target *>> or zero.
236
237.  const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
238
239Set the format of a file being written.
240
241.  boolean             (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
242
243Write cached information into a file being written, at <<bfd_close>>.
244
245.  boolean             (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
246
247The general target vector.  These vectors are initialized using the
248BFD_JUMP_TABLE macros.
249
250.
251.  {* Generic entry points.  *}
252.#define BFD_JUMP_TABLE_GENERIC(NAME)\
253.CAT(NAME,_close_and_cleanup),\
254.CAT(NAME,_bfd_free_cached_info),\
255.CAT(NAME,_new_section_hook),\
256.CAT(NAME,_get_section_contents),\
257.CAT(NAME,_get_section_contents_in_window)
258.
259.  {* Called when the BFD is being closed to do any necessary cleanup.  *}
260.  boolean       (*_close_and_cleanup) PARAMS ((bfd *));
261.  {* Ask the BFD to free all cached information.  *}
262.  boolean (*_bfd_free_cached_info) PARAMS ((bfd *));
263.  {* Called when a new section is created.  *}
264.  boolean       (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
265.  {* Read the contents of a section.  *}
266.  boolean       (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
267.                                            file_ptr, bfd_size_type));
268.  boolean       (*_bfd_get_section_contents_in_window)
269.                          PARAMS ((bfd *, sec_ptr, bfd_window *,
270.                                   file_ptr, bfd_size_type));
271.
272.  {* Entry points to copy private data.  *}
273.#define BFD_JUMP_TABLE_COPY(NAME)\
274.CAT(NAME,_bfd_copy_private_bfd_data),\
275.CAT(NAME,_bfd_merge_private_bfd_data),\
276.CAT(NAME,_bfd_copy_private_section_data),\
277.CAT(NAME,_bfd_copy_private_symbol_data),\
278.CAT(NAME,_bfd_set_private_flags),\
279.CAT(NAME,_bfd_print_private_bfd_data)\
280.  {* Called to copy BFD general private data from one object file
281.     to another.  *}
282.  boolean	 (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
283.  {* Called to merge BFD general private data from one object file
284.     to a common output file when linking.  *}
285.  boolean	 (*_bfd_merge_private_bfd_data) PARAMS ((bfd *, bfd *));
286.  {* Called to copy BFD private section data from one object file
287.     to another.  *}
288.  boolean       (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
289.                                                       bfd *, sec_ptr));
290.  {* Called to copy BFD private symbol data from one symbol
291.     to another.  *}
292.  boolean       (*_bfd_copy_private_symbol_data) PARAMS ((bfd *, asymbol *,
293.							   bfd *, asymbol *));
294.  {* Called to set private backend flags *}
295.  boolean	 (*_bfd_set_private_flags) PARAMS ((bfd *, flagword));
296.
297.  {* Called to print private BFD data *}
298.  boolean       (*_bfd_print_private_bfd_data) PARAMS ((bfd *, PTR));
299.
300.  {* Core file entry points.  *}
301.#define BFD_JUMP_TABLE_CORE(NAME)\
302.CAT(NAME,_core_file_failing_command),\
303.CAT(NAME,_core_file_failing_signal),\
304.CAT(NAME,_core_file_matches_executable_p)
305.  char *   (*_core_file_failing_command) PARAMS ((bfd *));
306.  int      (*_core_file_failing_signal) PARAMS ((bfd *));
307.  boolean  (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
308.
309.  {* Archive entry points.  *}
310.#define BFD_JUMP_TABLE_ARCHIVE(NAME)\
311.CAT(NAME,_slurp_armap),\
312.CAT(NAME,_slurp_extended_name_table),\
313.CAT(NAME,_construct_extended_name_table),\
314.CAT(NAME,_truncate_arname),\
315.CAT(NAME,_write_armap),\
316.CAT(NAME,_read_ar_hdr),\
317.CAT(NAME,_openr_next_archived_file),\
318.CAT(NAME,_get_elt_at_index),\
319.CAT(NAME,_generic_stat_arch_elt),\
320.CAT(NAME,_update_armap_timestamp)
321.  boolean  (*_bfd_slurp_armap) PARAMS ((bfd *));
322.  boolean  (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
323.  boolean  (*_bfd_construct_extended_name_table)
324.             PARAMS ((bfd *, char **, bfd_size_type *, const char **));
325.  void     (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
326.  boolean  (*write_armap) PARAMS ((bfd *arch,
327.                              unsigned int elength,
328.                              struct orl *map,
329.                              unsigned int orl_count,
330.                              int stridx));
331.  PTR (*_bfd_read_ar_hdr_fn) PARAMS ((bfd *));
332.  bfd *    (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
333.#define bfd_get_elt_at_index(b,i) BFD_SEND(b, _bfd_get_elt_at_index, (b,i))
334.  bfd *    (*_bfd_get_elt_at_index) PARAMS ((bfd *, symindex));
335.  int      (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
336.  boolean  (*_bfd_update_armap_timestamp) PARAMS ((bfd *));
337.
338.  {* Entry points used for symbols.  *}
339.#define BFD_JUMP_TABLE_SYMBOLS(NAME)\
340.CAT(NAME,_get_symtab_upper_bound),\
341.CAT(NAME,_get_symtab),\
342.CAT(NAME,_make_empty_symbol),\
343.CAT(NAME,_print_symbol),\
344.CAT(NAME,_get_symbol_info),\
345.CAT(NAME,_bfd_is_local_label_name),\
346.CAT(NAME,_get_lineno),\
347.CAT(NAME,_find_nearest_line),\
348.CAT(NAME,_bfd_make_debug_symbol),\
349.CAT(NAME,_read_minisymbols),\
350.CAT(NAME,_minisymbol_to_symbol)
351.  long  (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
352.  long  (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
353.                                             struct symbol_cache_entry **));
354.  struct symbol_cache_entry  *
355.                (*_bfd_make_empty_symbol) PARAMS ((bfd *));
356.  void          (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
357.                                      struct symbol_cache_entry *,
358.                                      bfd_print_symbol_type));
359.#define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
360.  void          (*_bfd_get_symbol_info) PARAMS ((bfd *,
361.                                      struct symbol_cache_entry *,
362.                                      symbol_info *));
363.#define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
364.  boolean	 (*_bfd_is_local_label_name) PARAMS ((bfd *, const char *));
365.
366.  alent *    (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
367.  boolean    (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
368.                    struct sec *section, struct symbol_cache_entry **symbols,
369.                    bfd_vma offset, CONST char **file, CONST char **func,
370.                    unsigned int *line));
371. {* Back-door to allow format-aware applications to create debug symbols
372.    while using BFD for everything else.  Currently used by the assembler
373.    when creating COFF files.  *}
374.  asymbol *  (*_bfd_make_debug_symbol) PARAMS ((
375.       bfd *abfd,
376.       void *ptr,
377.       unsigned long size));
378.#define bfd_read_minisymbols(b, d, m, s) \
379.  BFD_SEND (b, _read_minisymbols, (b, d, m, s))
380.  long  (*_read_minisymbols) PARAMS ((bfd *, boolean, PTR *,
381.                                      unsigned int *));
382.#define bfd_minisymbol_to_symbol(b, d, m, f) \
383.  BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
384.  asymbol *(*_minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR,
385.                                             asymbol *));
386.
387.  {* Routines for relocs.  *}
388.#define BFD_JUMP_TABLE_RELOCS(NAME)\
389.CAT(NAME,_get_reloc_upper_bound),\
390.CAT(NAME,_canonicalize_reloc),\
391.CAT(NAME,_bfd_reloc_type_lookup)
392.  long  (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
393.  long  (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
394.                                            struct symbol_cache_entry **));
395.  {* See documentation on reloc types.  *}
396.  reloc_howto_type *
397.       (*reloc_type_lookup) PARAMS ((bfd *abfd,
398.                                     bfd_reloc_code_real_type code));
399.
400.  {* Routines used when writing an object file.  *}
401.#define BFD_JUMP_TABLE_WRITE(NAME)\
402.CAT(NAME,_set_arch_mach),\
403.CAT(NAME,_set_section_contents)
404.  boolean    (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
405.                    unsigned long));
406.  boolean       (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
407.                                            file_ptr, bfd_size_type));
408.
409.  {* Routines used by the linker.  *}
410.#define BFD_JUMP_TABLE_LINK(NAME)\
411.CAT(NAME,_sizeof_headers),\
412.CAT(NAME,_bfd_get_relocated_section_contents),\
413.CAT(NAME,_bfd_relax_section),\
414.CAT(NAME,_bfd_link_hash_table_create),\
415.CAT(NAME,_bfd_link_add_symbols),\
416.CAT(NAME,_bfd_final_link),\
417.CAT(NAME,_bfd_link_split_section),\
418.CAT(NAME,_bfd_gc_sections)
419.  int        (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
420.  bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
421.                    struct bfd_link_info *, struct bfd_link_order *,
422.                    bfd_byte *data, boolean relocateable,
423.                    struct symbol_cache_entry **));
424.
425.  boolean    (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
426.                    struct bfd_link_info *, boolean *again));
427.
428.  {* Create a hash table for the linker.  Different backends store
429.     different information in this table.  *}
430.  struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
431.
432.  {* Add symbols from this object file into the hash table.  *}
433.  boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
434.
435.  {* Do a link based on the link_order structures attached to each
436.     section of the BFD.  *}
437.  boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
438.
439.  {* Should this section be split up into smaller pieces during linking.  *}
440.  boolean (*_bfd_link_split_section) PARAMS ((bfd *, struct sec *));
441.
442.  {* Remove sections that are not referenced from the output.  *}
443.  boolean (*_bfd_gc_sections) PARAMS ((bfd *, struct bfd_link_info *));
444.
445.  {* Routines to handle dynamic symbols and relocs.  *}
446.#define BFD_JUMP_TABLE_DYNAMIC(NAME)\
447.CAT(NAME,_get_dynamic_symtab_upper_bound),\
448.CAT(NAME,_canonicalize_dynamic_symtab),\
449.CAT(NAME,_get_dynamic_reloc_upper_bound),\
450.CAT(NAME,_canonicalize_dynamic_reloc)
451.  {* Get the amount of memory required to hold the dynamic symbols. *}
452.  long  (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
453.  {* Read in the dynamic symbols.  *}
454.  long  (*_bfd_canonicalize_dynamic_symtab)
455.    PARAMS ((bfd *, struct symbol_cache_entry **));
456.  {* Get the amount of memory required to hold the dynamic relocs.  *}
457.  long  (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
458.  {* Read in the dynamic relocs.  *}
459.  long  (*_bfd_canonicalize_dynamic_reloc)
460.    PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
461.
462
463A pointer to an alternative bfd_target in case the current one is not
464satisfactory.  This can happen when the target cpu supports both big
465and little endian code, and target chosen by the linker has the wrong
466endianness.  The function open_output() in ld/ldlang.c uses this field
467to find an alternative output format that is suitable.
468
469. {* Opposite endian version of this target.  *}
470. const struct bfd_target * alternative_target;
471.
472
473Data for use by back-end routines, which isn't generic enough to belong
474in this structure.
475
476. PTR backend_data;
477.
478.} bfd_target;
479
480*/
481
482/* All known xvecs (even those that don't compile on all systems).
483   Alphabetized for easy reference.
484   They are listed a second time below, since
485   we can't intermix extern's and initializers.  */
486extern const bfd_target a29kcoff_big_vec;
487extern const bfd_target a_out_adobe_vec;
488extern const bfd_target aout0_big_vec;
489extern const bfd_target aout_arm_big_vec;
490extern const bfd_target aout_arm_little_vec;
491extern const bfd_target aout_mips_big_vec;
492extern const bfd_target aout_mips_little_vec;
493extern const bfd_target apollocoff_vec;
494extern const bfd_target arm_epoc_pe_big_vec;
495extern const bfd_target arm_epoc_pe_little_vec;
496extern const bfd_target arm_epoc_pei_big_vec;
497extern const bfd_target arm_epoc_pei_little_vec;
498extern const bfd_target armcoff_big_vec;
499extern const bfd_target armcoff_little_vec;
500extern const bfd_target armnetbsd_vec;
501extern const bfd_target armpe_big_vec;
502extern const bfd_target armpe_little_vec;
503extern const bfd_target armpei_big_vec;
504extern const bfd_target armpei_little_vec;
505extern const bfd_target b_out_vec_big_host;
506extern const bfd_target b_out_vec_little_host;
507extern const bfd_target bfd_efi_app_ia32_vec;
508extern const bfd_target bfd_efi_app_ia64_vec;
509extern const bfd_target bfd_elf32_avr_vec;
510extern const bfd_target bfd_elf32_big_generic_vec;
511extern const bfd_target bfd_elf32_bigarc_vec;
512extern const bfd_target bfd_elf32_bigarm_oabi_vec;
513extern const bfd_target bfd_elf32_bigarm_vec;
514extern const bfd_target bfd_elf32_bigmips_vec;
515extern const bfd_target bfd_elf32_cris_vec;
516extern const bfd_target bfd_elf32_d10v_vec;
517extern const bfd_target bfd_elf32_d30v_vec;
518extern const bfd_target bfd_elf32_fr30_vec;
519extern const bfd_target bfd_elf32_hppa_linux_vec;
520extern const bfd_target bfd_elf32_hppa_vec;
521extern const bfd_target bfd_elf32_i370_vec;
522extern const bfd_target bfd_elf32_i386_vec;
523extern const bfd_target bfd_elf32_i860_little_vec;
524extern const bfd_target bfd_elf32_i860_vec;
525extern const bfd_target bfd_elf32_i960_vec;
526extern const bfd_target bfd_elf32_ia64_big_vec;
527extern const bfd_target bfd_elf32_little_generic_vec;
528extern const bfd_target bfd_elf32_littlearc_vec;
529extern const bfd_target bfd_elf32_littlearm_oabi_vec;
530extern const bfd_target bfd_elf32_littlearm_vec;
531extern const bfd_target bfd_elf32_littlemips_vec;
532extern const bfd_target bfd_elf32_m32r_vec;
533extern const bfd_target bfd_elf32_m68hc11_vec;
534extern const bfd_target bfd_elf32_m68hc12_vec;
535extern const bfd_target bfd_elf32_m68k_vec;
536extern const bfd_target bfd_elf32_m88k_vec;
537extern const bfd_target bfd_elf32_mcore_big_vec;
538extern const bfd_target bfd_elf32_mcore_little_vec;
539extern const bfd_target bfd_elf32_mn10200_vec;
540extern const bfd_target bfd_elf32_mn10300_vec;
541extern const bfd_target bfd_elf32_pj_vec;
542extern const bfd_target bfd_elf32_pjl_vec;
543extern const bfd_target bfd_elf32_powerpc_vec;
544extern const bfd_target bfd_elf32_powerpcle_vec;
545extern const bfd_target bfd_elf32_sh_vec;
546extern const bfd_target bfd_elf32_shblin_vec;
547extern const bfd_target bfd_elf32_shl_vec;
548extern const bfd_target bfd_elf32_shlin_vec;
549extern const bfd_target bfd_elf32_sparc_vec;
550extern const bfd_target bfd_elf32_tradbigmips_vec;
551extern const bfd_target bfd_elf32_tradlittlemips_vec;
552extern const bfd_target bfd_elf32_us_cris_vec;
553extern const bfd_target bfd_elf32_v850_vec;
554extern const bfd_target bfd_elf64_alpha_vec;
555extern const bfd_target bfd_elf64_big_generic_vec;
556extern const bfd_target bfd_elf64_bigmips_vec;
557extern const bfd_target bfd_elf64_hppa_linux_vec;
558extern const bfd_target bfd_elf64_hppa_vec;
559extern const bfd_target bfd_elf64_ia64_big_vec;
560extern const bfd_target bfd_elf64_ia64_little_vec;
561extern const bfd_target bfd_elf64_little_generic_vec;
562extern const bfd_target bfd_elf64_littlemips_vec;
563extern const bfd_target bfd_elf64_sparc_vec;
564extern const bfd_target bfd_elf64_x86_64_vec;
565extern const bfd_target bfd_powerpc_pe_vec;
566extern const bfd_target bfd_powerpc_pei_vec;
567extern const bfd_target bfd_powerpcle_pe_vec;
568extern const bfd_target bfd_powerpcle_pei_vec;
569extern const bfd_target cris_aout_vec;
570extern const bfd_target demo_64_vec;
571extern const bfd_target ecoff_big_vec;
572extern const bfd_target ecoff_biglittle_vec;
573extern const bfd_target ecoff_little_vec;
574extern const bfd_target ecoffalpha_little_vec;
575extern const bfd_target go32coff_vec;
576extern const bfd_target go32stubbedcoff_vec;
577extern const bfd_target h8300coff_vec;
578extern const bfd_target h8500coff_vec;
579extern const bfd_target host_aout_vec;
580extern const bfd_target hp300bsd_vec;
581extern const bfd_target hp300hpux_vec;
582extern const bfd_target i386aout_vec;
583extern const bfd_target i386bsd_vec;
584extern const bfd_target i386coff_vec;
585extern const bfd_target i386dynix_vec;
586extern const bfd_target i386freebsd_vec;
587extern const bfd_target i386linux_vec;
588extern const bfd_target i386lynx_aout_vec;
589extern const bfd_target i386lynx_coff_vec;
590extern const bfd_target i386mach3_vec;
591extern const bfd_target i386msdos_vec;
592extern const bfd_target i386netbsd_vec;
593extern const bfd_target i386os9k_vec;
594extern const bfd_target i386pe_vec;
595extern const bfd_target i386pei_vec;
596extern const bfd_target i860coff_vec;
597extern const bfd_target icoff_big_vec;
598extern const bfd_target icoff_little_vec;
599extern const bfd_target ieee_vec;
600extern const bfd_target m68k4knetbsd_vec;
601extern const bfd_target m68kaux_coff_vec;
602extern const bfd_target m68kcoff_vec;
603extern const bfd_target m68kcoffun_vec;
604extern const bfd_target m68klinux_vec;
605extern const bfd_target m68klynx_aout_vec;
606extern const bfd_target m68klynx_coff_vec;
607extern const bfd_target m68knetbsd_vec;
608extern const bfd_target m68ksysvcoff_vec;
609extern const bfd_target m88kbcs_vec;
610extern const bfd_target m88kmach3_vec;
611extern const bfd_target mcore_pe_big_vec;
612extern const bfd_target mcore_pe_little_vec;
613extern const bfd_target mcore_pei_big_vec;
614extern const bfd_target mcore_pei_little_vec;
615extern const bfd_target mipslpe_vec;
616extern const bfd_target mipslpei_vec;
617extern const bfd_target newsos3_vec;
618extern const bfd_target nlm32_alpha_vec;
619extern const bfd_target nlm32_i386_vec;
620extern const bfd_target nlm32_powerpc_vec;
621extern const bfd_target nlm32_sparc_vec;
622extern const bfd_target oasys_vec;
623extern const bfd_target pc532machaout_vec;
624extern const bfd_target pc532netbsd_vec;
625extern const bfd_target pmac_xcoff_vec;
626extern const bfd_target ppcboot_vec;
627extern const bfd_target riscix_vec;
628extern const bfd_target rs6000coff64_vec;
629extern const bfd_target rs6000coff_vec;
630extern const bfd_target shcoff_small_vec;
631extern const bfd_target shcoff_vec;
632extern const bfd_target shlcoff_small_vec;
633extern const bfd_target shlcoff_vec;
634extern const bfd_target shlpe_vec;
635extern const bfd_target shlpei_vec;
636extern const bfd_target som_vec;
637extern const bfd_target sparccoff_vec;
638extern const bfd_target sparcle_aout_vec;
639extern const bfd_target sparclinux_vec;
640extern const bfd_target sparclynx_aout_vec;
641extern const bfd_target sparclynx_coff_vec;
642extern const bfd_target sparcnetbsd_vec;
643extern const bfd_target sunos_big_vec;
644extern const bfd_target tekhex_vec;
645extern const bfd_target tic30_aout_vec;
646extern const bfd_target tic30_coff_vec;
647extern const bfd_target tic54x_coff0_beh_vec;
648extern const bfd_target tic54x_coff0_vec;
649extern const bfd_target tic54x_coff1_beh_vec;
650extern const bfd_target tic54x_coff1_vec;
651extern const bfd_target tic54x_coff2_beh_vec;
652extern const bfd_target tic54x_coff2_vec;
653extern const bfd_target tic80coff_vec;
654extern const bfd_target vaxnetbsd_vec;
655extern const bfd_target versados_vec;
656extern const bfd_target vms_alpha_vec;
657extern const bfd_target vms_vax_vec;
658extern const bfd_target w65_vec;
659extern const bfd_target we32kcoff_vec;
660extern const bfd_target z8kcoff_vec;
661
662/* srec is always included.  */
663extern const bfd_target srec_vec;
664extern const bfd_target symbolsrec_vec;
665
666/* binary is always included.  */
667extern const bfd_target binary_vec;
668
669/* ihex is always included.  */
670extern const bfd_target ihex_vec;
671
672/* All of the xvecs for core files.  */
673extern const bfd_target aix386_core_vec;
674extern const bfd_target cisco_core_big_vec;
675extern const bfd_target cisco_core_little_vec;
676extern const bfd_target hpux_core_vec;
677extern const bfd_target hppabsd_core_vec;
678extern const bfd_target irix_core_vec;
679extern const bfd_target netbsd_core_vec;
680extern const bfd_target osf_core_vec;
681extern const bfd_target sco5_core_vec;
682extern const bfd_target trad_core_vec;
683extern const bfd_target ptrace_core_vec;
684
685const bfd_target * const bfd_target_vector[] = {
686
687#ifdef SELECT_VECS
688
689	SELECT_VECS,
690
691#else /* not SELECT_VECS */
692
693#ifdef DEFAULT_VECTOR
694	&DEFAULT_VECTOR,
695#endif
696	/* This list is alphabetized to make it easy to compare
697	   with other vector lists -- the decls above and
698	   the case statement in configure.in.
699	   Vectors that don't compile on all systems, or aren't finished,
700	   should have an entry here with #if 0 around it, to show that
701	   it wasn't omitted by mistake.  */
702	&a29kcoff_big_vec,
703	&a_out_adobe_vec,
704#if 0				/* No one seems to use this.  */
705	&aout_mips_big_vec,
706#endif
707	&aout_mips_little_vec,
708	&b_out_vec_big_host,
709	&b_out_vec_little_host,
710
711	&bfd_efi_app_ia32_vec,
712#ifdef BFD64
713	&bfd_efi_app_ia64_vec,
714#endif
715
716	/* This, and other vectors, may not be used in any *.mt configuration.
717	   But that does not mean they are unnecessary.  If configured with
718	   --enable-targets=all, objdump or gdb should be able to examine
719	   the file even if we don't recognize the machine type.  */
720	&bfd_elf32_big_generic_vec,
721#ifdef BFD64
722	&bfd_elf64_alpha_vec,
723	&bfd_elf64_hppa_vec,
724	&bfd_elf64_hppa_linux_vec,
725	&bfd_elf64_ia64_little_vec,
726	&bfd_elf64_ia64_big_vec,
727#endif
728	&bfd_elf32_avr_vec,
729	&bfd_elf32_bigarc_vec,
730        &bfd_elf32_bigarm_vec,
731        &bfd_elf32_bigarm_oabi_vec,
732	&bfd_elf32_bigmips_vec,
733#ifdef BFD64
734	&bfd_elf64_bigmips_vec,
735#endif
736	&bfd_elf32_cris_vec,
737	&bfd_elf32_us_cris_vec,
738	&bfd_elf32_d10v_vec,
739	&bfd_elf32_d30v_vec,
740	&bfd_elf32_hppa_vec,
741	&bfd_elf32_hppa_linux_vec,
742	&bfd_elf32_i370_vec,
743	&bfd_elf32_i386_vec,
744#ifdef BFD64
745        &bfd_elf64_x86_64_vec,
746#endif
747	&bfd_elf32_i860_vec,
748	&bfd_elf32_i860_little_vec,
749	&bfd_elf32_i960_vec,
750	&bfd_elf32_little_generic_vec,
751	&bfd_elf32_littlearc_vec,
752        &bfd_elf32_littlearm_vec,
753        &bfd_elf32_littlearm_oabi_vec,
754	&bfd_elf32_littlemips_vec,
755#ifdef BFD64
756	&bfd_elf64_littlemips_vec,
757#endif
758	&bfd_elf32_m32r_vec,
759	&bfd_elf32_mn10200_vec,
760	&bfd_elf32_mn10300_vec,
761	&bfd_elf32_m68hc11_vec,
762	&bfd_elf32_m68hc12_vec,
763	&bfd_elf32_m68k_vec,
764	&bfd_elf32_m88k_vec,
765	&bfd_elf32_sparc_vec,
766	&bfd_elf32_pj_vec,
767	&bfd_elf32_pjl_vec,
768	&bfd_elf32_powerpc_vec,
769	&bfd_elf32_powerpcle_vec,
770	&bfd_elf32_v850_vec,
771	&bfd_elf32_fr30_vec,
772	&bfd_elf32_mcore_big_vec,
773	&bfd_elf32_mcore_little_vec,
774	&bfd_elf32_tradbigmips_vec,
775	&bfd_elf32_tradlittlemips_vec,
776#ifdef BFD64			/* No one seems to use this.  */
777	&bfd_elf64_big_generic_vec,
778	&bfd_elf64_little_generic_vec,
779#endif
780#if 0
781	&bfd_elf64_sparc_vec,
782#endif
783	/* We don't include cisco_core_*_vec.  Although it has a magic number,
784	   the magic number isn't at the beginning of the file, and thus
785	   might spuriously match other kinds of files.  */
786
787        &cris_aout_vec,
788#ifdef BFD64
789	&demo_64_vec,	/* Only compiled if host has long-long support */
790#endif
791	&ecoff_big_vec,
792	&ecoff_little_vec,
793	&ecoff_biglittle_vec,
794#ifdef BFD64
795	&ecoffalpha_little_vec,
796#endif
797	&h8300coff_vec,
798	&h8500coff_vec,
799#if 0
800	/* Since a.out files lack decent magic numbers, no way to recognize
801	   which kind of a.out file it is.  */
802	&host_aout_vec,
803#endif
804#if 0				/* Clashes with sunos_big_vec magic no.  */
805	&hp300bsd_vec,
806#endif
807	&hp300hpux_vec,
808#if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF)
809        &som_vec,
810#endif
811	&i386aout_vec,
812	&i386bsd_vec,
813	&i386coff_vec,
814	&i386freebsd_vec,
815	&i860coff_vec,
816	&bfd_powerpc_pe_vec,
817	&bfd_powerpcle_pe_vec,
818	&bfd_powerpc_pei_vec,
819	&bfd_powerpcle_pei_vec,
820	&go32coff_vec,
821	&go32stubbedcoff_vec,
822#if 0
823	/* Since a.out files lack decent magic numbers, no way to recognize
824	   which kind of a.out file it is.  */
825	&i386linux_vec,
826#endif
827	&i386lynx_aout_vec,
828	&i386lynx_coff_vec,
829#if 0
830	/* No distinguishing features for Mach 3 executables.  */
831	&i386mach3_vec,
832#endif
833	&i386msdos_vec,
834	&i386netbsd_vec,
835	&i386os9k_vec,
836	&i386pe_vec,
837	&i386pei_vec,
838	&armcoff_little_vec,
839	&armcoff_big_vec,
840	&armnetbsd_vec,
841	&armpe_little_vec,
842	&armpe_big_vec,
843	&armpei_little_vec,
844	&armpei_big_vec,
845	&arm_epoc_pe_little_vec,
846	&arm_epoc_pe_big_vec,
847	&arm_epoc_pei_little_vec,
848	&arm_epoc_pei_big_vec,
849	&icoff_big_vec,
850	&icoff_little_vec,
851	&ieee_vec,
852	&m68kcoff_vec,
853	&m68kcoffun_vec,
854#if 0
855	/* Since a.out files lack decent magic numbers, no way to recognize
856	   which kind of a.out file it is.  */
857	&m68klinux_vec,
858#endif
859	&m68klynx_aout_vec,
860	&m68klynx_coff_vec,
861	&m68knetbsd_vec,
862	&m68ksysvcoff_vec,
863	&m88kbcs_vec,
864	&m88kmach3_vec,
865	&mcore_pe_big_vec,
866	&mcore_pe_little_vec,
867	&mcore_pei_big_vec,
868	&mcore_pei_little_vec,
869	&newsos3_vec,
870	&nlm32_i386_vec,
871	&nlm32_sparc_vec,
872#ifdef BFD64
873	&nlm32_alpha_vec,
874#endif
875	&pc532netbsd_vec,
876#if 0
877	/* We have no oasys tools anymore, so we can't test any of this
878	   anymore. If you want to test the stuff yourself, go ahead...
879	   steve@cygnus.com
880	   Worse, since there is no magic number for archives, there
881	   can be annoying target mis-matches.  */
882	&oasys_vec,
883#endif
884	&pc532machaout_vec,
885#if 0
886	/* We have no way of distinguishing these from other a.out variants */
887	&aout_arm_big_vec,
888	&aout_arm_little_vec,
889	&riscix_vec,
890#endif
891#if 0
892	/* This has the same magic number as RS/6000.  */
893	&pmac_xcoff_vec,
894#endif
895	&rs6000coff_vec,
896#ifdef BFD64
897	&rs6000coff64_vec,
898#endif
899	&ppcboot_vec,
900	&shcoff_vec,
901	&shlcoff_vec,
902	&shcoff_small_vec,
903	&shlcoff_small_vec,
904	&sparcle_aout_vec,
905	&sparclinux_vec,
906	&sparclynx_aout_vec,
907	&sparclynx_coff_vec,
908	&sparcnetbsd_vec,
909	&sunos_big_vec,
910	&aout0_big_vec,
911	&tic30_aout_vec,
912	&tic30_coff_vec,
913	&tic54x_coff0_vec,
914	&tic54x_coff0_beh_vec,
915	&tic54x_coff1_vec,
916	&tic54x_coff1_beh_vec,
917	&tic54x_coff2_vec,
918	&tic54x_coff2_beh_vec,
919	&tic80coff_vec,
920	&vaxnetbsd_vec,
921	&versados_vec,
922#ifdef BFD64
923	&vms_alpha_vec,
924#endif
925	&vms_vax_vec,
926	&we32kcoff_vec,
927	&z8kcoff_vec,
928
929#endif /* not SELECT_VECS */
930
931/* Always support S-records, for convenience.  */
932	&srec_vec,
933	&symbolsrec_vec,
934/* And tekhex */
935	&tekhex_vec,
936/* Likewise for binary output.  */
937	&binary_vec,
938/* Likewise for ihex.  */
939	&ihex_vec,
940
941/* Add any required traditional-core-file-handler.  */
942
943#ifdef AIX386_CORE
944	&aix386_core_vec,
945#endif
946#ifdef HPUX_CORE
947	&hpux_core_vec,
948#endif
949#ifdef HPPABSD_CORE
950	&hppabsd_core_vec,
951#endif
952#ifdef IRIX_CORE
953	&irix_core_vec,
954#endif
955#ifdef NETBSD_CORE
956	&netbsd_core_vec,
957#endif
958#ifdef OSF_CORE
959	&osf_core_vec,
960#endif
961#ifdef SCO5_CORE
962	&sco5_core_vec,
963#endif
964#ifdef	TRAD_CORE
965	&trad_core_vec,
966#endif
967
968#ifdef	PTRACE_CORE
969	&ptrace_core_vec,
970#endif
971
972	NULL /* end of list marker */
973};
974
975/* bfd_default_vector[0] contains either the address of the default vector,
976   if there is one, or zero if there isn't.  */
977
978const bfd_target *bfd_default_vector[] = {
979#ifdef DEFAULT_VECTOR
980	&DEFAULT_VECTOR,
981#endif
982	NULL
983};
984
985/* When there is an ambiguous match, bfd_check_format_matches puts the
986   names of the matching targets in an array.  This variable is the maximum
987   number of entries that the array could possibly need.  */
988const size_t _bfd_target_vector_entries = sizeof (bfd_target_vector)/sizeof (*bfd_target_vector);
989
990/* This array maps configuration triplets onto BFD vectors.  */
991
992struct targmatch
993{
994  /* The configuration triplet.  */
995  const char *triplet;
996  /* The BFD vector.  If this is NULL, then the vector is found by
997     searching forward for the next structure with a non NULL vector
998     field.  */
999  const bfd_target *vector;
1000};
1001
1002/* targmatch.h is built by Makefile out of config.bfd.  */
1003static const struct targmatch bfd_target_match[] = {
1004#include "targmatch.h"
1005  { NULL, NULL }
1006};
1007
1008static const bfd_target *find_target PARAMS ((const char *));
1009
1010/* Find a target vector, given a name or configuration triplet.  */
1011
1012static const bfd_target *
1013find_target (name)
1014     const char *name;
1015{
1016  const bfd_target * const *target;
1017  const struct targmatch *match;
1018
1019  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1020    if (strcmp (name, (*target)->name) == 0)
1021      return *target;
1022
1023  /* If we couldn't match on the exact name, try matching on the
1024     configuration triplet.  FIXME: We should run the triplet through
1025     config.sub first, but that is hard.  */
1026  for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1027    {
1028      if (fnmatch (match->triplet, name, 0) == 0)
1029	{
1030	  while (match->vector == NULL)
1031	    ++match;
1032	  return match->vector;
1033	  break;
1034	}
1035    }
1036
1037  bfd_set_error (bfd_error_invalid_target);
1038  return NULL;
1039}
1040
1041/*
1042FUNCTION
1043	bfd_set_default_target
1044
1045SYNOPSIS
1046	boolean bfd_set_default_target (const char *name);
1047
1048DESCRIPTION
1049	Set the default target vector to use when recognizing a BFD.
1050	This takes the name of the target, which may be a BFD target
1051	name or a configuration triplet.
1052*/
1053
1054boolean
1055bfd_set_default_target (name)
1056     const char *name;
1057{
1058  const bfd_target *target;
1059
1060  if (bfd_default_vector[0] != NULL
1061      && strcmp (name, bfd_default_vector[0]->name) == 0)
1062    return true;
1063
1064  target = find_target (name);
1065  if (target == NULL)
1066    return false;
1067
1068  bfd_default_vector[0] = target;
1069  return true;
1070}
1071
1072/*
1073FUNCTION
1074	bfd_find_target
1075
1076SYNOPSIS
1077	const bfd_target *bfd_find_target(CONST char *target_name, bfd *abfd);
1078
1079DESCRIPTION
1080	Return a pointer to the transfer vector for the object target
1081	named @var{target_name}.  If @var{target_name} is <<NULL>>, choose the
1082	one in the environment variable <<GNUTARGET>>; if that is null or not
1083	defined, then choose the first entry in the target list.
1084	Passing in the string "default" or setting the environment
1085	variable to "default" will cause the first entry in the target
1086	list to be returned, and "target_defaulted" will be set in the
1087	BFD.  This causes <<bfd_check_format>> to loop over all the
1088	targets to find the one that matches the file being read.
1089*/
1090
1091const bfd_target *
1092bfd_find_target (target_name, abfd)
1093     const char *target_name;
1094     bfd *abfd;
1095{
1096  const char *targname;
1097  const bfd_target *target;
1098
1099  if (target_name != NULL)
1100    targname = target_name;
1101  else
1102    targname = getenv ("GNUTARGET");
1103
1104  /* This is safe; the vector cannot be null */
1105  if (targname == NULL || strcmp (targname, "default") == 0)
1106    {
1107      abfd->target_defaulted = true;
1108      if (bfd_default_vector[0] != NULL)
1109	abfd->xvec = bfd_default_vector[0];
1110      else
1111	abfd->xvec = bfd_target_vector[0];
1112      return abfd->xvec;
1113    }
1114
1115  abfd->target_defaulted = false;
1116
1117  target = find_target (targname);
1118  if (target == NULL)
1119    return NULL;
1120
1121  abfd->xvec = target;
1122  return target;
1123}
1124
1125/*
1126FUNCTION
1127	bfd_target_list
1128
1129SYNOPSIS
1130	const char **bfd_target_list(void);
1131
1132DESCRIPTION
1133	Return a freshly malloced NULL-terminated
1134	vector of the names of all the valid BFD targets. Do not
1135	modify the names.
1136
1137*/
1138
1139const char **
1140bfd_target_list ()
1141{
1142  int vec_length= 0;
1143#if defined (HOST_HPPAHPUX) && ! defined (__STDC__)
1144  /* The native compiler on the HP9000/700 has a bug which causes it
1145     to loop endlessly when compiling this file.  This avoids it.  */
1146  volatile
1147#endif
1148    const bfd_target * const *target;
1149  CONST  char **name_list, **name_ptr;
1150
1151  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1152    vec_length++;
1153
1154  name_ptr = name_list = (CONST char **)
1155    bfd_zmalloc ((vec_length + 1) * sizeof (char **));
1156
1157  if (name_list == NULL)
1158    return NULL;
1159
1160  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1161    *(name_ptr++) = (*target)->name;
1162
1163  return name_list;
1164}
1165
1166/*
1167FUNCTION
1168	bfd_seach_for_target
1169
1170SYNOPSIS
1171	const bfd_target * bfd_search_for_target (int (* search_func) (const bfd_target *, void *), void *);
1172
1173DESCRIPTION
1174	Return a pointer to the first transfer vector in the list of
1175	transfer vectors maintained by BFD that produces a non-zero
1176	result when passed to the function @var{search_func}.  The
1177	parameter @var{data} is passed, unexamined, to the search
1178	function.
1179*/
1180
1181const bfd_target *
1182bfd_search_for_target (search_func, data)
1183     int (* search_func) PARAMS ((const bfd_target * target, void * data));
1184     void * data;
1185{
1186  const bfd_target * const * target;
1187
1188  for (target = bfd_target_vector; * target != NULL; target ++)
1189    if (search_func (* target, data))
1190      return * target;
1191
1192  return NULL;
1193}
1194