targets.c revision 1.6
1/* Generic target-file-type support for the BFD library.
2   Copyright (C) 1990-2016 Free Software Foundation, Inc.
3   Written by Cygnus Support.
4
5   This file is part of BFD, the Binary File Descriptor library.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program; if not, write to the Free Software
19   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20   MA 02110-1301, USA.  */
21
22#include "sysdep.h"
23#include "bfd.h"
24#include "libbfd.h"
25#include "fnmatch.h"
26
27/*
28   It's okay to see some:
29#if 0
30   directives in this source file, as targets.c uses them to exclude
31   certain BFD vectors.  This comment is specially formatted to catch
32   users who grep for ^#if 0, so please keep it this way!
33*/
34
35/*
36SECTION
37	Targets
38
39DESCRIPTION
40	Each port of BFD to a different machine requires the creation
41	of a target back end. All the back end provides to the root
42	part of BFD is a structure containing pointers to functions
43	which perform certain low level operations on files. BFD
44	translates the applications's requests through a pointer into
45	calls to the back end routines.
46
47	When a file is opened with <<bfd_openr>>, its format and
48	target are unknown. BFD uses various mechanisms to determine
49	how to interpret the file. The operations performed are:
50
51	o Create a BFD by calling the internal routine
52	<<_bfd_new_bfd>>, then call <<bfd_find_target>> with the
53	target string supplied to <<bfd_openr>> and the new BFD pointer.
54
55	o If a null target string was provided to <<bfd_find_target>>,
56	look up the environment variable <<GNUTARGET>> and use
57	that as the target string.
58
59	o If the target string is still <<NULL>>, or the target string is
60	<<default>>, then use the first item in the target vector
61	as the target type, and set <<target_defaulted>> in the BFD to
62	cause <<bfd_check_format>> to loop through all the targets.
63	@xref{bfd_target}.  @xref{Formats}.
64
65	o Otherwise, inspect the elements in the target vector
66	one by one, until a match on target name is found. When found,
67	use it.
68
69	o Otherwise return the error <<bfd_error_invalid_target>> to
70	<<bfd_openr>>.
71
72	o <<bfd_openr>> attempts to open the file using
73	<<bfd_open_file>>, and returns the BFD.
74
75	Once the BFD has been opened and the target selected, the file
76	format may be determined. This is done by calling
77	<<bfd_check_format>> on the BFD with a suggested format.
78	If <<target_defaulted>> has been set, each possible target
79	type is tried to see if it recognizes the specified format.
80	<<bfd_check_format>> returns <<TRUE>> when the caller guesses right.
81@menu
82@* bfd_target::
83@end menu
84*/
85
86/*
87
88INODE
89	bfd_target,  , Targets, Targets
90DOCDD
91SUBSECTION
92	bfd_target
93
94DESCRIPTION
95	This structure contains everything that BFD knows about a
96	target. It includes things like its byte order, name, and which
97	routines to call to do various operations.
98
99	Every BFD points to a target structure with its <<xvec>>
100	member.
101
102	The macros below are used to dispatch to functions through the
103	<<bfd_target>> vector. They are used in a number of macros further
104	down in @file{bfd.h}, and are also used when calling various
105	routines by hand inside the BFD implementation.  The @var{arglist}
106	argument must be parenthesized; it contains all the arguments
107	to the called function.
108
109	They make the documentation (more) unpleasant to read, so if
110	someone wants to fix this and not break the above, please do.
111
112.#define BFD_SEND(bfd, message, arglist) \
113.  ((*((bfd)->xvec->message)) arglist)
114.
115.#ifdef DEBUG_BFD_SEND
116.#undef BFD_SEND
117.#define BFD_SEND(bfd, message, arglist) \
118.  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
119.    ((*((bfd)->xvec->message)) arglist) : \
120.    (bfd_assert (__FILE__,__LINE__), NULL))
121.#endif
122
123	For operations which index on the BFD format:
124
125.#define BFD_SEND_FMT(bfd, message, arglist) \
126.  (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)
127.
128.#ifdef DEBUG_BFD_SEND
129.#undef BFD_SEND_FMT
130.#define BFD_SEND_FMT(bfd, message, arglist) \
131.  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
132.   (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
133.   (bfd_assert (__FILE__,__LINE__), NULL))
134.#endif
135.
136	This is the structure which defines the type of BFD this is.  The
137	<<xvec>> member of the struct <<bfd>> itself points here.  Each
138	module that implements access to a different target under BFD,
139	defines one of these.
140
141	FIXME, these names should be rationalised with the names of
142	the entry points which call them. Too bad we can't have one
143	macro to define them both!
144
145.enum bfd_flavour
146.{
147.  {* N.B. Update bfd_flavour_name if you change this.  *}
148.  bfd_target_unknown_flavour,
149.  bfd_target_aout_flavour,
150.  bfd_target_coff_flavour,
151.  bfd_target_ecoff_flavour,
152.  bfd_target_xcoff_flavour,
153.  bfd_target_elf_flavour,
154.  bfd_target_ieee_flavour,
155.  bfd_target_nlm_flavour,
156.  bfd_target_oasys_flavour,
157.  bfd_target_tekhex_flavour,
158.  bfd_target_srec_flavour,
159.  bfd_target_verilog_flavour,
160.  bfd_target_ihex_flavour,
161.  bfd_target_som_flavour,
162.  bfd_target_os9k_flavour,
163.  bfd_target_versados_flavour,
164.  bfd_target_msdos_flavour,
165.  bfd_target_ovax_flavour,
166.  bfd_target_evax_flavour,
167.  bfd_target_mmo_flavour,
168.  bfd_target_mach_o_flavour,
169.  bfd_target_pef_flavour,
170.  bfd_target_pef_xlib_flavour,
171.  bfd_target_sym_flavour
172.};
173.
174.enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
175.
176.{* Forward declaration.  *}
177.typedef struct bfd_link_info _bfd_link_info;
178.
179.{* Forward declaration.  *}
180.typedef struct flag_info flag_info;
181.
182.typedef struct bfd_target
183.{
184.  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
185.  char *name;
186.
187. {* The "flavour" of a back end is a general indication about
188.    the contents of a file.  *}
189.  enum bfd_flavour flavour;
190.
191.  {* The order of bytes within the data area of a file.  *}
192.  enum bfd_endian byteorder;
193.
194. {* The order of bytes within the header parts of a file.  *}
195.  enum bfd_endian header_byteorder;
196.
197.  {* A mask of all the flags which an executable may have set -
198.     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
199.  flagword object_flags;
200.
201. {* A mask of all the flags which a section may have set - from
202.    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
203.  flagword section_flags;
204.
205. {* The character normally found at the front of a symbol.
206.    (if any), perhaps `_'.  *}
207.  char symbol_leading_char;
208.
209. {* The pad character for file names within an archive header.  *}
210.  char ar_pad_char;
211.
212.  {* The maximum number of characters in an archive header.  *}
213.  unsigned char ar_max_namelen;
214.
215.  {* How well this target matches, used to select between various
216.     possible targets when more than one target matches.  *}
217.  unsigned char match_priority;
218.
219.  {* Entries for byte swapping for data. These are different from the
220.     other entry points, since they don't take a BFD as the first argument.
221.     Certain other handlers could do the same.  *}
222.  bfd_uint64_t   (*bfd_getx64) (const void *);
223.  bfd_int64_t    (*bfd_getx_signed_64) (const void *);
224.  void           (*bfd_putx64) (bfd_uint64_t, void *);
225.  bfd_vma        (*bfd_getx32) (const void *);
226.  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
227.  void           (*bfd_putx32) (bfd_vma, void *);
228.  bfd_vma        (*bfd_getx16) (const void *);
229.  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
230.  void           (*bfd_putx16) (bfd_vma, void *);
231.
232.  {* Byte swapping for the headers.  *}
233.  bfd_uint64_t   (*bfd_h_getx64) (const void *);
234.  bfd_int64_t    (*bfd_h_getx_signed_64) (const void *);
235.  void           (*bfd_h_putx64) (bfd_uint64_t, void *);
236.  bfd_vma        (*bfd_h_getx32) (const void *);
237.  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
238.  void           (*bfd_h_putx32) (bfd_vma, void *);
239.  bfd_vma        (*bfd_h_getx16) (const void *);
240.  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
241.  void           (*bfd_h_putx16) (bfd_vma, void *);
242.
243.  {* Format dependent routines: these are vectors of entry points
244.     within the target vector structure, one for each format to check.  *}
245.
246.  {* Check the format of a file being read.  Return a <<bfd_target *>> or zero.  *}
247.  const struct bfd_target *(*_bfd_check_format[bfd_type_end]) (bfd *);
248.
249.  {* Set the format of a file being written.  *}
250.  bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *);
251.
252.  {* Write cached information into a file being written, at <<bfd_close>>.  *}
253.  bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *);
254.
255The general target vector.  These vectors are initialized using the
256BFD_JUMP_TABLE macros.
257.
258.  {* Generic entry points.  *}
259.#define BFD_JUMP_TABLE_GENERIC(NAME) \
260.  NAME##_close_and_cleanup, \
261.  NAME##_bfd_free_cached_info, \
262.  NAME##_new_section_hook, \
263.  NAME##_get_section_contents, \
264.  NAME##_get_section_contents_in_window
265.
266.  {* Called when the BFD is being closed to do any necessary cleanup.  *}
267.  bfd_boolean (*_close_and_cleanup) (bfd *);
268.  {* Ask the BFD to free all cached information.  *}
269.  bfd_boolean (*_bfd_free_cached_info) (bfd *);
270.  {* Called when a new section is created.  *}
271.  bfd_boolean (*_new_section_hook) (bfd *, sec_ptr);
272.  {* Read the contents of a section.  *}
273.  bfd_boolean (*_bfd_get_section_contents)
274.    (bfd *, sec_ptr, void *, file_ptr, bfd_size_type);
275.  bfd_boolean (*_bfd_get_section_contents_in_window)
276.    (bfd *, sec_ptr, bfd_window *, file_ptr, bfd_size_type);
277.
278.  {* Entry points to copy private data.  *}
279.#define BFD_JUMP_TABLE_COPY(NAME) \
280.  NAME##_bfd_copy_private_bfd_data, \
281.  NAME##_bfd_merge_private_bfd_data, \
282.  _bfd_generic_init_private_section_data, \
283.  NAME##_bfd_copy_private_section_data, \
284.  NAME##_bfd_copy_private_symbol_data, \
285.  NAME##_bfd_copy_private_header_data, \
286.  NAME##_bfd_set_private_flags, \
287.  NAME##_bfd_print_private_bfd_data
288.
289.  {* Called to copy BFD general private data from one object file
290.     to another.  *}
291.  bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
292.  {* Called to merge BFD general private data from one object file
293.     to a common output file when linking.  *}
294.  bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, bfd *);
295.  {* Called to initialize BFD private section data from one object file
296.     to another.  *}
297.#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
298.  BFD_SEND (obfd, _bfd_init_private_section_data, (ibfd, isec, obfd, osec, link_info))
299.  bfd_boolean (*_bfd_init_private_section_data)
300.    (bfd *, sec_ptr, bfd *, sec_ptr, struct bfd_link_info *);
301.  {* Called to copy BFD private section data from one object file
302.     to another.  *}
303.  bfd_boolean (*_bfd_copy_private_section_data)
304.    (bfd *, sec_ptr, bfd *, sec_ptr);
305.  {* Called to copy BFD private symbol data from one symbol
306.     to another.  *}
307.  bfd_boolean (*_bfd_copy_private_symbol_data)
308.    (bfd *, asymbol *, bfd *, asymbol *);
309.  {* Called to copy BFD private header data from one object file
310.     to another.  *}
311.  bfd_boolean (*_bfd_copy_private_header_data)
312.    (bfd *, bfd *);
313.  {* Called to set private backend flags.  *}
314.  bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword);
315.
316.  {* Called to print private BFD data.  *}
317.  bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *);
318.
319.  {* Core file entry points.  *}
320.#define BFD_JUMP_TABLE_CORE(NAME) \
321.  NAME##_core_file_failing_command, \
322.  NAME##_core_file_failing_signal, \
323.  NAME##_core_file_matches_executable_p, \
324.  NAME##_core_file_pid
325.
326.  char *      (*_core_file_failing_command) (bfd *);
327.  int         (*_core_file_failing_signal) (bfd *);
328.  bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *);
329.  int         (*_core_file_pid) (bfd *);
330.
331.  {* Archive entry points.  *}
332.#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
333.  NAME##_slurp_armap, \
334.  NAME##_slurp_extended_name_table, \
335.  NAME##_construct_extended_name_table, \
336.  NAME##_truncate_arname, \
337.  NAME##_write_armap, \
338.  NAME##_read_ar_hdr, \
339.  NAME##_write_ar_hdr, \
340.  NAME##_openr_next_archived_file, \
341.  NAME##_get_elt_at_index, \
342.  NAME##_generic_stat_arch_elt, \
343.  NAME##_update_armap_timestamp
344.
345.  bfd_boolean (*_bfd_slurp_armap) (bfd *);
346.  bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *);
347.  bfd_boolean (*_bfd_construct_extended_name_table)
348.    (bfd *, char **, bfd_size_type *, const char **);
349.  void        (*_bfd_truncate_arname) (bfd *, const char *, char *);
350.  bfd_boolean (*write_armap)
351.    (bfd *, unsigned int, struct orl *, unsigned int, int);
352.  void *      (*_bfd_read_ar_hdr_fn) (bfd *);
353.  bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
354.  bfd *       (*openr_next_archived_file) (bfd *, bfd *);
355.#define bfd_get_elt_at_index(b,i) BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
356.  bfd *       (*_bfd_get_elt_at_index) (bfd *, symindex);
357.  int         (*_bfd_stat_arch_elt) (bfd *, struct stat *);
358.  bfd_boolean (*_bfd_update_armap_timestamp) (bfd *);
359.
360.  {* Entry points used for symbols.  *}
361.#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
362.  NAME##_get_symtab_upper_bound, \
363.  NAME##_canonicalize_symtab, \
364.  NAME##_make_empty_symbol, \
365.  NAME##_print_symbol, \
366.  NAME##_get_symbol_info, \
367.  NAME##_get_symbol_version_string, \
368.  NAME##_bfd_is_local_label_name, \
369.  NAME##_bfd_is_target_special_symbol, \
370.  NAME##_get_lineno, \
371.  NAME##_find_nearest_line, \
372.  NAME##_find_line, \
373.  NAME##_find_inliner_info, \
374.  NAME##_bfd_make_debug_symbol, \
375.  NAME##_read_minisymbols, \
376.  NAME##_minisymbol_to_symbol
377.
378.  long        (*_bfd_get_symtab_upper_bound) (bfd *);
379.  long        (*_bfd_canonicalize_symtab)
380.    (bfd *, struct bfd_symbol **);
381.  struct bfd_symbol *
382.              (*_bfd_make_empty_symbol) (bfd *);
383.  void        (*_bfd_print_symbol)
384.    (bfd *, void *, struct bfd_symbol *, bfd_print_symbol_type);
385.#define bfd_print_symbol(b,p,s,e) BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
386.  void        (*_bfd_get_symbol_info)
387.    (bfd *, struct bfd_symbol *, symbol_info *);
388.#define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
389.  const char *(*_bfd_get_symbol_version_string)
390.    (bfd *, struct bfd_symbol *, bfd_boolean *);
391.#define bfd_get_symbol_version_string(b,s,h) BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,h))
392.  bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
393.  bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
394.  alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
395.  bfd_boolean (*_bfd_find_nearest_line)
396.    (bfd *, struct bfd_symbol **, struct bfd_section *, bfd_vma,
397.     const char **, const char **, unsigned int *, unsigned int *);
398.  bfd_boolean (*_bfd_find_line)
399.    (bfd *, struct bfd_symbol **, struct bfd_symbol *,
400.     const char **, unsigned int *);
401.  bfd_boolean (*_bfd_find_inliner_info)
402.    (bfd *, const char **, const char **, unsigned int *);
403. {* Back-door to allow format-aware applications to create debug symbols
404.    while using BFD for everything else.  Currently used by the assembler
405.    when creating COFF files.  *}
406.  asymbol *   (*_bfd_make_debug_symbol)
407.    (bfd *, void *, unsigned long size);
408.#define bfd_read_minisymbols(b, d, m, s) \
409.  BFD_SEND (b, _read_minisymbols, (b, d, m, s))
410.  long        (*_read_minisymbols)
411.    (bfd *, bfd_boolean, void **, unsigned int *);
412.#define bfd_minisymbol_to_symbol(b, d, m, f) \
413.  BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
414.  asymbol *   (*_minisymbol_to_symbol)
415.    (bfd *, bfd_boolean, const void *, asymbol *);
416.
417.  {* Routines for relocs.  *}
418.#define BFD_JUMP_TABLE_RELOCS(NAME) \
419.  NAME##_get_reloc_upper_bound, \
420.  NAME##_canonicalize_reloc, \
421.  NAME##_bfd_reloc_type_lookup, \
422.  NAME##_bfd_reloc_name_lookup
423.
424.  long        (*_get_reloc_upper_bound) (bfd *, sec_ptr);
425.  long        (*_bfd_canonicalize_reloc)
426.    (bfd *, sec_ptr, arelent **, struct bfd_symbol **);
427.  {* See documentation on reloc types.  *}
428.  reloc_howto_type *
429.              (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
430.  reloc_howto_type *
431.              (*reloc_name_lookup) (bfd *, const char *);
432.
433.
434.  {* Routines used when writing an object file.  *}
435.#define BFD_JUMP_TABLE_WRITE(NAME) \
436.  NAME##_set_arch_mach, \
437.  NAME##_set_section_contents
438.
439.  bfd_boolean (*_bfd_set_arch_mach)
440.    (bfd *, enum bfd_architecture, unsigned long);
441.  bfd_boolean (*_bfd_set_section_contents)
442.    (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type);
443.
444.  {* Routines used by the linker.  *}
445.#define BFD_JUMP_TABLE_LINK(NAME) \
446.  NAME##_sizeof_headers, \
447.  NAME##_bfd_get_relocated_section_contents, \
448.  NAME##_bfd_relax_section, \
449.  NAME##_bfd_link_hash_table_create, \
450.  NAME##_bfd_link_add_symbols, \
451.  NAME##_bfd_link_just_syms, \
452.  NAME##_bfd_copy_link_hash_symbol_type, \
453.  NAME##_bfd_final_link, \
454.  NAME##_bfd_link_split_section, \
455.  NAME##_bfd_link_check_relocs, \
456.  NAME##_bfd_gc_sections, \
457.  NAME##_bfd_lookup_section_flags, \
458.  NAME##_bfd_merge_sections, \
459.  NAME##_bfd_is_group_section, \
460.  NAME##_bfd_discard_group, \
461.  NAME##_section_already_linked, \
462.  NAME##_bfd_define_common_symbol
463.
464.  int         (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
465.  bfd_byte *  (*_bfd_get_relocated_section_contents)
466.    (bfd *, struct bfd_link_info *, struct bfd_link_order *,
467.     bfd_byte *, bfd_boolean, struct bfd_symbol **);
468.
469.  bfd_boolean (*_bfd_relax_section)
470.    (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
471.
472.  {* Create a hash table for the linker.  Different backends store
473.     different information in this table.  *}
474.  struct bfd_link_hash_table *
475.              (*_bfd_link_hash_table_create) (bfd *);
476.
477.  {* Add symbols from this object file into the hash table.  *}
478.  bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
479.
480.  {* Indicate that we are only retrieving symbol values from this section.  *}
481.  void        (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
482.
483.  {* Copy the symbol type and other attributes for a linker script
484.     assignment of one symbol to another.  *}
485.#define bfd_copy_link_hash_symbol_type(b, t, f) \
486.  BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
487.  void (*_bfd_copy_link_hash_symbol_type)
488.    (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
489.
490.  {* Do a link based on the link_order structures attached to each
491.     section of the BFD.  *}
492.  bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);
493.
494.  {* Should this section be split up into smaller pieces during linking.  *}
495.  bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);
496.
497.  {* Check the relocations in the bfd for validity.  *}
498.  bfd_boolean (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *);
499.
500.  {* Remove sections that are not referenced from the output.  *}
501.  bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
502.
503.  {* Sets the bitmask of allowed and disallowed section flags.  *}
504.  bfd_boolean (*_bfd_lookup_section_flags) (struct bfd_link_info *,
505.					     struct flag_info *,
506.					     asection *);
507.
508.  {* Attempt to merge SEC_MERGE sections.  *}
509.  bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
510.
511.  {* Is this section a member of a group?  *}
512.  bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
513.
514.  {* Discard members of a group.  *}
515.  bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *);
516.
517.  {* Check if SEC has been already linked during a reloceatable or
518.     final link.  *}
519.  bfd_boolean (*_section_already_linked) (bfd *, asection *,
520.					   struct bfd_link_info *);
521.
522.  {* Define a common symbol.  *}
523.  bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
524.					     struct bfd_link_hash_entry *);
525.
526.  {* Routines to handle dynamic symbols and relocs.  *}
527.#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
528.  NAME##_get_dynamic_symtab_upper_bound, \
529.  NAME##_canonicalize_dynamic_symtab, \
530.  NAME##_get_synthetic_symtab, \
531.  NAME##_get_dynamic_reloc_upper_bound, \
532.  NAME##_canonicalize_dynamic_reloc
533.
534.  {* Get the amount of memory required to hold the dynamic symbols.  *}
535.  long        (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
536.  {* Read in the dynamic symbols.  *}
537.  long        (*_bfd_canonicalize_dynamic_symtab)
538.    (bfd *, struct bfd_symbol **);
539.  {* Create synthetized symbols.  *}
540.  long        (*_bfd_get_synthetic_symtab)
541.    (bfd *, long, struct bfd_symbol **, long, struct bfd_symbol **,
542.     struct bfd_symbol **);
543.  {* Get the amount of memory required to hold the dynamic relocs.  *}
544.  long        (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
545.  {* Read in the dynamic relocs.  *}
546.  long        (*_bfd_canonicalize_dynamic_reloc)
547.    (bfd *, arelent **, struct bfd_symbol **);
548.
549
550A pointer to an alternative bfd_target in case the current one is not
551satisfactory.  This can happen when the target cpu supports both big
552and little endian code, and target chosen by the linker has the wrong
553endianness.  The function open_output() in ld/ldlang.c uses this field
554to find an alternative output format that is suitable.
555
556.  {* Opposite endian version of this target.  *}
557.  const struct bfd_target * alternative_target;
558.
559
560.  {* Data for use by back-end routines, which isn't
561.     generic enough to belong in this structure.  *}
562.  const void *backend_data;
563.
564.} bfd_target;
565.
566*/
567
568/* All known xvecs (even those that don't compile on all systems).
569   Alphabetized for easy reference.
570   They are listed a second time below, since
571   we can't intermix extern's and initializers.  */
572extern const bfd_target aarch64_elf32_be_vec;
573extern const bfd_target aarch64_elf32_le_vec;
574extern const bfd_target aarch64_elf64_be_vec;
575extern const bfd_target aarch64_elf64_be_cloudabi_vec;
576extern const bfd_target aarch64_elf64_le_vec;
577extern const bfd_target aarch64_elf64_le_cloudabi_vec;
578extern const bfd_target aarch64_mach_o_vec;
579extern const bfd_target alpha_ecoff_le_vec;
580extern const bfd_target alpha_elf64_vec;
581extern const bfd_target alpha_elf64_fbsd_vec;
582extern const bfd_target alpha_nlm32_vec;
583extern const bfd_target alpha_vms_vec;
584extern const bfd_target alpha_vms_lib_txt_vec;
585extern const bfd_target am33_elf32_linux_vec;
586extern const bfd_target aout0_be_vec;
587extern const bfd_target aout64_vec;
588extern const bfd_target aout_vec;
589extern const bfd_target aout_adobe_vec;
590extern const bfd_target arc_elf32_be_vec;
591extern const bfd_target arc_elf32_le_vec;
592extern const bfd_target arm_aout_be_vec;
593extern const bfd_target arm_aout_le_vec;
594extern const bfd_target arm_aout_nbsd_vec;
595extern const bfd_target arm_aout_riscix_vec;
596extern const bfd_target arm_coff_be_vec;
597extern const bfd_target arm_coff_le_vec;
598extern const bfd_target arm_elf32_be_vec;
599extern const bfd_target arm_elf32_le_vec;
600extern const bfd_target arm_elf32_nacl_be_vec;
601extern const bfd_target arm_elf32_nacl_le_vec;
602extern const bfd_target arm_elf32_symbian_be_vec;
603extern const bfd_target arm_elf32_symbian_le_vec;
604extern const bfd_target arm_elf32_vxworks_be_vec;
605extern const bfd_target arm_elf32_vxworks_le_vec;
606extern const bfd_target arm_mach_o_vec;
607extern const bfd_target arm_pe_be_vec;
608extern const bfd_target arm_pe_le_vec;
609extern const bfd_target arm_pe_epoc_be_vec;
610extern const bfd_target arm_pe_epoc_le_vec;
611extern const bfd_target arm_pe_wince_be_vec;
612extern const bfd_target arm_pe_wince_le_vec;
613extern const bfd_target arm_pei_be_vec;
614extern const bfd_target arm_pei_le_vec;
615extern const bfd_target arm_pei_epoc_be_vec;
616extern const bfd_target arm_pei_epoc_le_vec;
617extern const bfd_target arm_pei_wince_be_vec;
618extern const bfd_target arm_pei_wince_le_vec;
619extern const bfd_target avr_elf32_vec;
620extern const bfd_target bfin_elf32_vec;
621extern const bfd_target bfin_elf32_fdpic_vec;
622extern const bfd_target bout_be_vec;
623extern const bfd_target bout_le_vec;
624extern const bfd_target cr16_elf32_vec;
625extern const bfd_target cr16c_elf32_vec;
626extern const bfd_target cris_aout_vec;
627extern const bfd_target cris_elf32_vec;
628extern const bfd_target cris_elf32_us_vec;
629extern const bfd_target crx_elf32_vec;
630extern const bfd_target d10v_elf32_vec;
631extern const bfd_target d30v_elf32_vec;
632extern const bfd_target dlx_elf32_be_vec;
633extern const bfd_target elf32_be_vec;
634extern const bfd_target elf32_le_vec;
635extern const bfd_target elf64_be_vec;
636extern const bfd_target elf64_le_vec;
637extern const bfd_target epiphany_elf32_vec;
638extern const bfd_target fr30_elf32_vec;
639extern const bfd_target frv_elf32_vec;
640extern const bfd_target frv_elf32_fdpic_vec;
641extern const bfd_target h8300_coff_vec;
642extern const bfd_target h8300_elf32_vec;
643extern const bfd_target h8300_elf32_linux_vec;
644extern const bfd_target h8500_coff_vec;
645extern const bfd_target hppa_elf32_vec;
646extern const bfd_target hppa_elf32_linux_vec;
647extern const bfd_target hppa_elf32_nbsd_vec;
648extern const bfd_target hppa_elf64_vec;
649extern const bfd_target hppa_elf64_linux_vec;
650extern const bfd_target hppa_som_vec;
651extern const bfd_target i370_elf32_vec;
652extern const bfd_target i386_aout_vec;
653extern const bfd_target i386_aout_bsd_vec;
654extern const bfd_target i386_aout_dynix_vec;
655extern const bfd_target i386_aout_fbsd_vec;
656extern const bfd_target i386_aout_linux_vec;
657extern const bfd_target i386_aout_lynx_vec;
658extern const bfd_target i386_aout_mach3_vec;
659extern const bfd_target i386_aout_nbsd_vec;
660extern const bfd_target i386_aout_os9k_vec;
661extern const bfd_target i386_coff_vec;
662extern const bfd_target i386_coff_go32_vec;
663extern const bfd_target i386_coff_go32stubbed_vec;
664extern const bfd_target i386_coff_lynx_vec;
665extern const bfd_target i386_elf32_vec;
666extern const bfd_target i386_elf32_fbsd_vec;
667extern const bfd_target i386_elf32_nacl_vec;
668extern const bfd_target i386_elf32_sol2_vec;
669extern const bfd_target i386_elf32_vxworks_vec;
670extern const bfd_target i386_mach_o_vec;
671extern const bfd_target i386_msdos_vec;
672extern const bfd_target i386_nlm32_vec;
673extern const bfd_target i386_pe_vec;
674extern const bfd_target i386_pei_vec;
675extern const bfd_target iamcu_elf32_vec;
676extern const bfd_target i860_coff_vec;
677extern const bfd_target i860_elf32_vec;
678extern const bfd_target i860_elf32_le_vec;
679extern const bfd_target i960_elf32_vec;
680extern const bfd_target ia64_elf32_be_vec;
681extern const bfd_target ia64_elf32_hpux_be_vec;
682extern const bfd_target ia64_elf64_be_vec;
683extern const bfd_target ia64_elf64_le_vec;
684extern const bfd_target ia64_elf64_hpux_be_vec;
685extern const bfd_target ia64_elf64_vms_vec;
686extern const bfd_target ia64_pei_vec;
687extern const bfd_target icoff_be_vec;
688extern const bfd_target icoff_le_vec;
689extern const bfd_target ieee_vec;
690extern const bfd_target ip2k_elf32_vec;
691extern const bfd_target iq2000_elf32_vec;
692extern const bfd_target k1om_elf64_vec;
693extern const bfd_target k1om_elf64_fbsd_vec;
694extern const bfd_target l1om_elf64_vec;
695extern const bfd_target l1om_elf64_fbsd_vec;
696extern const bfd_target lm32_elf32_vec;
697extern const bfd_target lm32_elf32_fdpic_vec;
698extern const bfd_target m32c_elf32_vec;
699extern const bfd_target m32r_elf32_vec;
700extern const bfd_target m32r_elf32_le_vec;
701extern const bfd_target m32r_elf32_linux_vec;
702extern const bfd_target m32r_elf32_linux_le_vec;
703extern const bfd_target m68hc11_elf32_vec;
704extern const bfd_target m68hc12_elf32_vec;
705extern const bfd_target m68k_aout_4knbsd_vec;
706extern const bfd_target m68k_aout_hp300bsd_vec;
707extern const bfd_target m68k_aout_hp300hpux_vec;
708extern const bfd_target m68k_aout_linux_vec;
709extern const bfd_target m68k_aout_nbsd_vec;
710extern const bfd_target m68k_aout_newsos3_vec;
711extern const bfd_target m68k_coff_vec;
712extern const bfd_target m68k_coff_apollo_vec;
713extern const bfd_target m68k_coff_aux_vec;
714extern const bfd_target m68k_coff_sysv_vec;
715extern const bfd_target m68k_coff_un_vec;
716extern const bfd_target m68k_elf32_vec;
717extern const bfd_target m68k_versados_vec;
718extern const bfd_target m88k_aout_mach3_vec;
719extern const bfd_target m88k_aout_obsd_vec;
720extern const bfd_target m88k_coff_bcs_vec;
721extern const bfd_target m88k_elf32_vec;
722extern const bfd_target mach_o_be_vec;
723extern const bfd_target mach_o_le_vec;
724extern const bfd_target mach_o_fat_vec;
725extern const bfd_target mcore_elf32_be_vec;
726extern const bfd_target mcore_elf32_le_vec;
727extern const bfd_target mcore_pe_be_vec;
728extern const bfd_target mcore_pe_le_vec;
729extern const bfd_target mcore_pei_be_vec;
730extern const bfd_target mcore_pei_le_vec;
731extern const bfd_target mep_elf32_vec;
732extern const bfd_target mep_elf32_le_vec;
733extern const bfd_target metag_elf32_vec;
734extern const bfd_target microblaze_elf32_vec;
735extern const bfd_target microblaze_elf32_le_vec;
736extern const bfd_target mips_aout_be_vec;
737extern const bfd_target mips_aout_le_vec;
738extern const bfd_target mips_ecoff_be_vec;
739extern const bfd_target mips_ecoff_le_vec;
740extern const bfd_target mips_ecoff_bele_vec;
741extern const bfd_target mips_elf32_be_vec;
742extern const bfd_target mips_elf32_le_vec;
743extern const bfd_target mips_elf32_n_be_vec;
744extern const bfd_target mips_elf32_n_le_vec;
745extern const bfd_target mips_elf32_ntrad_be_vec;
746extern const bfd_target mips_elf32_ntrad_le_vec;
747extern const bfd_target mips_elf32_ntradfbsd_be_vec;
748extern const bfd_target mips_elf32_ntradfbsd_le_vec;
749extern const bfd_target mips_elf32_trad_be_vec;
750extern const bfd_target mips_elf32_trad_le_vec;
751extern const bfd_target mips_elf32_tradfbsd_be_vec;
752extern const bfd_target mips_elf32_tradfbsd_le_vec;
753extern const bfd_target mips_elf32_vxworks_be_vec;
754extern const bfd_target mips_elf32_vxworks_le_vec;
755extern const bfd_target mips_elf64_be_vec;
756extern const bfd_target mips_elf64_le_vec;
757extern const bfd_target mips_elf64_trad_be_vec;
758extern const bfd_target mips_elf64_trad_le_vec;
759extern const bfd_target mips_elf64_tradfbsd_be_vec;
760extern const bfd_target mips_elf64_tradfbsd_le_vec;
761extern const bfd_target mips_pe_le_vec;
762extern const bfd_target mips_pei_le_vec;
763extern const bfd_target mmix_elf64_vec;
764extern const bfd_target mmix_mmo_vec;
765extern const bfd_target mn10200_elf32_vec;
766extern const bfd_target mn10300_elf32_vec;
767extern const bfd_target moxie_elf32_be_vec;
768extern const bfd_target moxie_elf32_le_vec;
769extern const bfd_target msp430_elf32_vec;
770extern const bfd_target msp430_elf32_ti_vec;
771extern const bfd_target mt_elf32_vec;
772extern const bfd_target nds32_elf32_be_vec;
773extern const bfd_target nds32_elf32_le_vec;
774extern const bfd_target nds32_elf32_linux_be_vec;
775extern const bfd_target nds32_elf32_linux_le_vec;
776extern const bfd_target nios2_elf32_be_vec;
777extern const bfd_target nios2_elf32_le_vec;
778extern const bfd_target ns32k_aout_pc532mach_vec;
779extern const bfd_target ns32k_aout_pc532nbsd_vec;
780extern const bfd_target oasys_vec;
781extern const bfd_target or1k_elf32_vec;
782extern const bfd_target pdp11_aout_vec;
783extern const bfd_target pef_vec;
784extern const bfd_target pef_xlib_vec;
785extern const bfd_target pj_elf32_vec;
786extern const bfd_target pj_elf32_le_vec;
787extern const bfd_target plugin_vec;
788extern const bfd_target powerpc_boot_vec;
789extern const bfd_target powerpc_elf32_vec;
790extern const bfd_target powerpc_elf32_le_vec;
791extern const bfd_target powerpc_elf32_fbsd_vec;
792extern const bfd_target powerpc_elf32_vxworks_vec;
793extern const bfd_target powerpc_elf64_vec;
794extern const bfd_target powerpc_elf64_le_vec;
795extern const bfd_target powerpc_elf64_fbsd_vec;
796extern const bfd_target powerpc_nlm32_vec;
797extern const bfd_target powerpc_pe_vec;
798extern const bfd_target powerpc_pe_le_vec;
799extern const bfd_target powerpc_pei_vec;
800extern const bfd_target powerpc_pei_le_vec;
801extern const bfd_target powerpc_xcoff_vec;
802extern const bfd_target rl78_elf32_vec;
803extern const bfd_target rs6000_xcoff64_vec;
804extern const bfd_target rs6000_xcoff64_aix_vec;
805extern const bfd_target rs6000_xcoff_vec;
806extern const bfd_target rx_elf32_be_vec;
807extern const bfd_target rx_elf32_be_ns_vec;
808extern const bfd_target rx_elf32_le_vec;
809extern const bfd_target s390_elf32_vec;
810extern const bfd_target s390_elf64_vec;
811extern const bfd_target score_elf32_be_vec;
812extern const bfd_target score_elf32_le_vec;
813extern const bfd_target sh64_elf32_vec;
814extern const bfd_target sh64_elf32_le_vec;
815extern const bfd_target sh64_elf32_linux_vec;
816extern const bfd_target sh64_elf32_linux_be_vec;
817extern const bfd_target sh64_elf32_nbsd_vec;
818extern const bfd_target sh64_elf32_nbsd_le_vec;
819extern const bfd_target sh64_elf64_vec;
820extern const bfd_target sh64_elf64_le_vec;
821extern const bfd_target sh64_elf64_linux_vec;
822extern const bfd_target sh64_elf64_linux_be_vec;
823extern const bfd_target sh64_elf64_nbsd_vec;
824extern const bfd_target sh64_elf64_nbsd_le_vec;
825extern const bfd_target sh_coff_vec;
826extern const bfd_target sh_coff_le_vec;
827extern const bfd_target sh_coff_small_vec;
828extern const bfd_target sh_coff_small_le_vec;
829extern const bfd_target sh_elf32_vec;
830extern const bfd_target sh_elf32_le_vec;
831extern const bfd_target sh_elf32_fdpic_be_vec;
832extern const bfd_target sh_elf32_fdpic_le_vec;
833extern const bfd_target sh_elf32_linux_vec;
834extern const bfd_target sh_elf32_linux_be_vec;
835extern const bfd_target sh_elf32_nbsd_vec;
836extern const bfd_target sh_elf32_nbsd_le_vec;
837extern const bfd_target sh_elf32_symbian_le_vec;
838extern const bfd_target sh_elf32_vxworks_vec;
839extern const bfd_target sh_elf32_vxworks_le_vec;
840extern const bfd_target sh_pe_le_vec;
841extern const bfd_target sh_pei_le_vec;
842extern const bfd_target sparc_aout_le_vec;
843extern const bfd_target sparc_aout_linux_vec;
844extern const bfd_target sparc_aout_lynx_vec;
845extern const bfd_target sparc_aout_nbsd_vec;
846extern const bfd_target sparc_aout_sunos_be_vec;
847extern const bfd_target sparc_coff_vec;
848extern const bfd_target sparc_coff_lynx_vec;
849extern const bfd_target sparc_elf32_vec;
850extern const bfd_target sparc_elf32_sol2_vec;
851extern const bfd_target sparc_elf32_vxworks_vec;
852extern const bfd_target sparc_elf64_vec;
853extern const bfd_target sparc_elf64_fbsd_vec;
854extern const bfd_target sparc_elf64_sol2_vec;
855extern const bfd_target sparc_nlm32_vec;
856extern const bfd_target spu_elf32_vec;
857extern const bfd_target sym_vec;
858extern const bfd_target tic30_aout_vec;
859extern const bfd_target tic30_coff_vec;
860extern const bfd_target tic4x_coff0_vec;
861extern const bfd_target tic4x_coff0_beh_vec;
862extern const bfd_target tic4x_coff1_vec;
863extern const bfd_target tic4x_coff1_beh_vec;
864extern const bfd_target tic4x_coff2_vec;
865extern const bfd_target tic4x_coff2_beh_vec;
866extern const bfd_target tic54x_coff0_vec;
867extern const bfd_target tic54x_coff0_beh_vec;
868extern const bfd_target tic54x_coff1_vec;
869extern const bfd_target tic54x_coff1_beh_vec;
870extern const bfd_target tic54x_coff2_vec;
871extern const bfd_target tic54x_coff2_beh_vec;
872extern const bfd_target tic6x_elf32_be_vec;
873extern const bfd_target tic6x_elf32_le_vec;
874extern const bfd_target tic6x_elf32_c6000_be_vec;
875extern const bfd_target tic6x_elf32_c6000_le_vec;
876extern const bfd_target tic6x_elf32_linux_be_vec;
877extern const bfd_target tic6x_elf32_linux_le_vec;
878extern const bfd_target tic80_coff_vec;
879extern const bfd_target tilegx_elf32_be_vec;
880extern const bfd_target tilegx_elf32_le_vec;
881extern const bfd_target tilegx_elf64_be_vec;
882extern const bfd_target tilegx_elf64_le_vec;
883extern const bfd_target tilepro_elf32_vec;
884extern const bfd_target v800_elf32_vec;
885extern const bfd_target v850_elf32_vec;
886extern const bfd_target ft32_elf32_vec;
887extern const bfd_target vax_aout_1knbsd_vec;
888extern const bfd_target vax_aout_bsd_vec;
889extern const bfd_target vax_aout_nbsd_vec;
890extern const bfd_target vax_elf32_vec;
891extern const bfd_target visium_elf32_vec;
892extern const bfd_target w65_coff_vec;
893extern const bfd_target we32k_coff_vec;
894extern const bfd_target x86_64_coff_vec;
895extern const bfd_target x86_64_elf32_vec;
896extern const bfd_target x86_64_elf32_nacl_vec;
897extern const bfd_target x86_64_elf64_vec;
898extern const bfd_target x86_64_elf64_cloudabi_vec;
899extern const bfd_target x86_64_elf64_fbsd_vec;
900extern const bfd_target x86_64_elf64_nacl_vec;
901extern const bfd_target x86_64_elf64_sol2_vec;
902extern const bfd_target x86_64_mach_o_vec;
903extern const bfd_target x86_64_pe_vec;
904extern const bfd_target x86_64_pe_be_vec;
905extern const bfd_target x86_64_pei_vec;
906extern const bfd_target xc16x_elf32_vec;
907extern const bfd_target xgate_elf32_vec;
908extern const bfd_target xstormy16_elf32_vec;
909extern const bfd_target xtensa_elf32_be_vec;
910extern const bfd_target xtensa_elf32_le_vec;
911extern const bfd_target z80_coff_vec;
912extern const bfd_target z8k_coff_vec;
913
914/* These are always included.  */
915extern const bfd_target srec_vec;
916extern const bfd_target symbolsrec_vec;
917extern const bfd_target verilog_vec;
918extern const bfd_target tekhex_vec;
919extern const bfd_target binary_vec;
920extern const bfd_target ihex_vec;
921
922/* All of the xvecs for core files.  */
923extern const bfd_target core_aix386_vec;
924extern const bfd_target core_cisco_be_vec;
925extern const bfd_target core_cisco_le_vec;
926extern const bfd_target core_hppabsd_vec;
927extern const bfd_target core_hpux_vec;
928extern const bfd_target core_irix_vec;
929extern const bfd_target core_netbsd_vec;
930extern const bfd_target core_osf_vec;
931extern const bfd_target core_ptrace_vec;
932extern const bfd_target core_sco5_vec;
933extern const bfd_target core_trad_vec;
934
935static const bfd_target * const _bfd_target_vector[] =
936{
937#ifdef SELECT_VECS
938
939	SELECT_VECS,
940
941#else /* not SELECT_VECS */
942
943#ifdef DEFAULT_VECTOR
944	&DEFAULT_VECTOR,
945#endif
946	/* This list is alphabetized to make it easy to compare
947	   with other vector lists -- the decls above and
948	   the case statement in configure.ac.
949	   Try to keep it in order when adding new targets, and
950	   use a name of the form <cpu>_<format>_<other>_<endian>_vec.
951	   Note that sorting is done as if _<endian>_vec wasn't present.
952	   Vectors that don't compile on all systems, or aren't finished,
953	   should have an entry here with #if 0 around it, to show that
954	   it wasn't omitted by mistake.  */
955#ifdef BFD64
956	&aarch64_elf32_be_vec,
957	&aarch64_elf32_le_vec,
958	&aarch64_elf64_be_vec,
959	&aarch64_elf64_be_cloudabi_vec,
960	&aarch64_elf64_le_vec,
961	&aarch64_elf64_le_cloudabi_vec,
962	&aarch64_mach_o_vec,
963#endif
964
965#ifdef BFD64
966	&alpha_ecoff_le_vec,
967	&alpha_elf64_vec,
968	&alpha_elf64_fbsd_vec,
969	&alpha_nlm32_vec,
970	&alpha_vms_vec,
971#endif
972	&alpha_vms_lib_txt_vec,
973
974	&am33_elf32_linux_vec,
975
976	&aout0_be_vec,
977#ifdef BFD64
978	&aout64_vec,	/* Only compiled if host has long-long support.  */
979#endif
980#if 0
981	/* Since a.out files lack decent magic numbers, no way to recognize
982	   which kind of a.out file it is.  */
983	&aout_vec,
984#endif
985	&aout_adobe_vec,
986
987	&arc_elf32_be_vec,
988	&arc_elf32_le_vec,
989
990#if 0
991	/* We have no way of distinguishing these from other a.out variants.  */
992	&arm_aout_be_vec,
993	&arm_aout_le_vec,
994#endif
995	&arm_aout_nbsd_vec,
996#if 0
997	/* We have no way of distinguishing these from other a.out variants.  */
998	&arm_aout_riscix_vec,
999#endif
1000	&arm_coff_be_vec,
1001	&arm_coff_le_vec,
1002	&arm_elf32_be_vec,
1003	&arm_elf32_le_vec,
1004	&arm_elf32_symbian_be_vec,
1005	&arm_elf32_symbian_le_vec,
1006	&arm_elf32_vxworks_be_vec,
1007	&arm_elf32_vxworks_le_vec,
1008	&arm_mach_o_vec,
1009	&arm_pe_be_vec,
1010	&arm_pe_le_vec,
1011	&arm_pe_epoc_be_vec,
1012	&arm_pe_epoc_le_vec,
1013	&arm_pe_wince_be_vec,
1014	&arm_pe_wince_le_vec,
1015	&arm_pei_be_vec,
1016	&arm_pei_le_vec,
1017	&arm_pei_epoc_be_vec,
1018	&arm_pei_epoc_le_vec,
1019	&arm_pei_wince_be_vec,
1020	&arm_pei_wince_le_vec,
1021
1022	&avr_elf32_vec,
1023
1024	&bfin_elf32_vec,
1025	&bfin_elf32_fdpic_vec,
1026
1027	&bout_be_vec,
1028	&bout_le_vec,
1029
1030	&cr16_elf32_vec,
1031	&cr16c_elf32_vec,
1032
1033	&cris_aout_vec,
1034	&cris_elf32_vec,
1035	&cris_elf32_us_vec,
1036
1037	&crx_elf32_vec,
1038
1039	&d10v_elf32_vec,
1040	&d30v_elf32_vec,
1041
1042	&dlx_elf32_be_vec,
1043
1044	/* This, and other vectors, may not be used in any *.mt configuration.
1045	   But that does not mean they are unnecessary.  If configured with
1046	   --enable-targets=all, objdump or gdb should be able to examine
1047	   the file even if we don't recognize the machine type.  */
1048	&elf32_be_vec,
1049	&elf32_le_vec,
1050#ifdef BFD64
1051	&elf64_be_vec,
1052	&elf64_le_vec,
1053#endif
1054
1055	&epiphany_elf32_vec,
1056
1057	&fr30_elf32_vec,
1058
1059	&frv_elf32_vec,
1060	&frv_elf32_fdpic_vec,
1061
1062	&h8300_coff_vec,
1063	&h8300_elf32_vec,
1064	&h8300_elf32_linux_vec,
1065	&h8500_coff_vec,
1066
1067	&hppa_elf32_vec,
1068	&hppa_elf32_linux_vec,
1069	&hppa_elf32_nbsd_vec,
1070#ifdef BFD64
1071	&hppa_elf64_vec,
1072	&hppa_elf64_linux_vec,
1073#endif
1074	&hppa_som_vec,
1075
1076	&i370_elf32_vec,
1077
1078	&i386_aout_vec,
1079	&i386_aout_bsd_vec,
1080#if 0
1081	&i386_aout_dynix_vec,
1082#endif
1083	&i386_aout_fbsd_vec,
1084#if 0
1085	/* Since a.out files lack decent magic numbers, no way to recognize
1086	   which kind of a.out file it is.  */
1087	&i386_aout_linux_vec,
1088#endif
1089	&i386_aout_lynx_vec,
1090#if 0
1091	/* No distinguishing features for Mach 3 executables.  */
1092	&i386_aout_mach3_vec,
1093#endif
1094	&i386_aout_nbsd_vec,
1095	&i386_aout_os9k_vec,
1096	&i386_coff_vec,
1097	&i386_coff_go32_vec,
1098	&i386_coff_go32stubbed_vec,
1099	&i386_coff_lynx_vec,
1100	&i386_elf32_vec,
1101	&i386_elf32_fbsd_vec,
1102	&i386_elf32_nacl_vec,
1103	&i386_elf32_sol2_vec,
1104	&i386_elf32_vxworks_vec,
1105	&i386_mach_o_vec,
1106	&i386_msdos_vec,
1107	&i386_nlm32_vec,
1108	&i386_pe_vec,
1109	&i386_pei_vec,
1110
1111	&iamcu_elf32_vec,
1112
1113	&i860_coff_vec,
1114	&i860_elf32_vec,
1115	&i860_elf32_le_vec,
1116
1117	&i960_elf32_vec,
1118
1119#ifdef BFD64
1120#if 0
1121	&ia64_elf32_be_vec,
1122#endif
1123	&ia64_elf32_hpux_be_vec,
1124	&ia64_elf64_be_vec,
1125	&ia64_elf64_le_vec,
1126	&ia64_elf64_hpux_be_vec,
1127	&ia64_elf64_vms_vec,
1128	&ia64_pei_vec,
1129#endif
1130
1131	&icoff_be_vec,
1132	&icoff_le_vec,
1133
1134	&ieee_vec,
1135
1136	&ip2k_elf32_vec,
1137	&iq2000_elf32_vec,
1138
1139#ifdef BFD64
1140	&k1om_elf64_vec,
1141	&k1om_elf64_fbsd_vec,
1142	&l1om_elf64_vec,
1143	&l1om_elf64_fbsd_vec,
1144#endif
1145
1146	&lm32_elf32_vec,
1147
1148	&m32c_elf32_vec,
1149
1150	&m32r_elf32_vec,
1151	&m32r_elf32_le_vec,
1152	&m32r_elf32_linux_vec,
1153	&m32r_elf32_linux_le_vec,
1154
1155	&m68hc11_elf32_vec,
1156	&m68hc12_elf32_vec,
1157
1158#if 0
1159	&m68k_aout_4knbsd_vec,
1160	/* Clashes with sparc_aout_sunos_be_vec magic no.  */
1161	&m68k_aout_hp300bsd_vec,
1162#endif
1163	&m68k_aout_hp300hpux_vec,
1164#if 0
1165	/* Since a.out files lack decent magic numbers, no way to recognize
1166	   which kind of a.out file it is.  */
1167	&m68k_aout_linux_vec,
1168#endif
1169	&m68k_aout_nbsd_vec,
1170	&m68k_aout_newsos3_vec,
1171	&m68k_coff_vec,
1172#if 0
1173	&m68k_coff_apollo_vec,
1174	&m68k_coff_aux_vec,
1175#endif
1176	&m68k_coff_sysv_vec,
1177	&m68k_coff_un_vec,
1178	&m68k_elf32_vec,
1179	&m68k_versados_vec,
1180
1181	&m88k_aout_mach3_vec,
1182	&m88k_aout_obsd_vec,
1183	&m88k_coff_bcs_vec,
1184	&m88k_elf32_vec,
1185
1186	&mach_o_be_vec,
1187	&mach_o_le_vec,
1188	&mach_o_fat_vec,
1189
1190	&mcore_elf32_be_vec,
1191	&mcore_elf32_le_vec,
1192	&mcore_pe_be_vec,
1193	&mcore_pe_le_vec,
1194	&mcore_pei_be_vec,
1195	&mcore_pei_le_vec,
1196
1197	&mep_elf32_vec,
1198
1199	&metag_elf32_vec,
1200
1201	&microblaze_elf32_vec,
1202
1203#if 0
1204	/* No one seems to use this.  */
1205	&mips_aout_be_vec,
1206#endif
1207	&mips_aout_le_vec,
1208	&mips_ecoff_be_vec,
1209	&mips_ecoff_le_vec,
1210	&mips_ecoff_bele_vec,
1211#ifdef BFD64
1212	&mips_elf32_be_vec,
1213	&mips_elf32_le_vec,
1214	&mips_elf32_n_be_vec,
1215	&mips_elf32_n_le_vec,
1216	&mips_elf32_ntrad_be_vec,
1217	&mips_elf32_ntrad_le_vec,
1218	&mips_elf32_ntradfbsd_be_vec,
1219	&mips_elf32_ntradfbsd_le_vec,
1220	&mips_elf32_trad_be_vec,
1221	&mips_elf32_trad_le_vec,
1222	&mips_elf32_tradfbsd_be_vec,
1223	&mips_elf32_tradfbsd_le_vec,
1224	&mips_elf32_vxworks_be_vec,
1225	&mips_elf32_vxworks_le_vec,
1226	&mips_elf64_be_vec,
1227	&mips_elf64_le_vec,
1228	&mips_elf64_trad_be_vec,
1229	&mips_elf64_trad_le_vec,
1230	&mips_elf64_tradfbsd_be_vec,
1231	&mips_elf64_tradfbsd_le_vec,
1232#endif
1233	&mips_pe_le_vec,
1234	&mips_pei_le_vec,
1235
1236#ifdef BFD64
1237	&mmix_elf64_vec,
1238	&mmix_mmo_vec,
1239#endif
1240
1241	&mn10200_elf32_vec,
1242	&mn10300_elf32_vec,
1243
1244	&moxie_elf32_be_vec,
1245	&moxie_elf32_le_vec,
1246
1247	&msp430_elf32_vec,
1248	&msp430_elf32_ti_vec,
1249
1250	&mt_elf32_vec,
1251
1252	&nds32_elf32_be_vec,
1253	&nds32_elf32_le_vec,
1254	&nds32_elf32_linux_be_vec,
1255	&nds32_elf32_linux_le_vec,
1256
1257	&nios2_elf32_be_vec,
1258	&nios2_elf32_le_vec,
1259
1260	&ns32k_aout_pc532mach_vec,
1261	&ns32k_aout_pc532nbsd_vec,
1262
1263#if 0
1264	/* We have no oasys tools anymore, so we can't test any of this
1265	   anymore. If you want to test the stuff yourself, go ahead...
1266	   steve@cygnus.com
1267	   Worse, since there is no magic number for archives, there
1268	   can be annoying target mis-matches.  */
1269	&oasys_vec,
1270#endif
1271
1272	&or1k_elf32_vec,
1273
1274	&pdp11_aout_vec,
1275
1276	&pef_vec,
1277	&pef_xlib_vec,
1278
1279	&pj_elf32_vec,
1280	&pj_elf32_le_vec,
1281
1282#if BFD_SUPPORTS_PLUGINS
1283	&plugin_vec,
1284#endif
1285
1286	&powerpc_boot_vec,
1287	&powerpc_elf32_vec,
1288	&powerpc_elf32_le_vec,
1289	&powerpc_elf32_fbsd_vec,
1290	&powerpc_elf32_vxworks_vec,
1291#ifdef BFD64
1292	&powerpc_elf64_vec,
1293	&powerpc_elf64_le_vec,
1294	&powerpc_elf64_fbsd_vec,
1295#endif
1296	&powerpc_nlm32_vec,
1297	&powerpc_pe_vec,
1298	&powerpc_pe_le_vec,
1299	&powerpc_pei_vec,
1300	&powerpc_pei_le_vec,
1301#if 0
1302	/* This has the same magic number as RS/6000.  */
1303	&powerpc_xcoff_vec,
1304#endif
1305
1306	&rl78_elf32_vec,
1307
1308#ifdef BFD64
1309	&rs6000_xcoff64_vec,
1310	&rs6000_xcoff64_aix_vec,
1311#endif
1312	&rs6000_xcoff_vec,
1313
1314	&rx_elf32_be_vec,
1315	&rx_elf32_be_ns_vec,
1316	&rx_elf32_le_vec,
1317
1318	&s390_elf32_vec,
1319#ifdef BFD64
1320	&s390_elf64_vec,
1321#endif
1322
1323#ifdef BFD64
1324	&score_elf32_be_vec,
1325	&score_elf32_le_vec,
1326#endif
1327
1328#ifdef BFD64
1329	&sh64_elf32_vec,
1330	&sh64_elf32_le_vec,
1331	&sh64_elf32_linux_vec,
1332	&sh64_elf32_linux_be_vec,
1333	&sh64_elf32_nbsd_vec,
1334	&sh64_elf32_nbsd_le_vec,
1335	&sh64_elf64_vec,
1336	&sh64_elf64_le_vec,
1337	&sh64_elf64_linux_vec,
1338	&sh64_elf64_linux_be_vec,
1339	&sh64_elf64_nbsd_vec,
1340	&sh64_elf64_nbsd_le_vec,
1341#endif
1342	&sh_coff_vec,
1343	&sh_coff_le_vec,
1344	&sh_coff_small_vec,
1345	&sh_coff_small_le_vec,
1346	&sh_elf32_vec,
1347	&sh_elf32_le_vec,
1348	&sh_elf32_fdpic_be_vec,
1349	&sh_elf32_fdpic_le_vec,
1350	&sh_elf32_linux_vec,
1351	&sh_elf32_linux_be_vec,
1352	&sh_elf32_nbsd_vec,
1353	&sh_elf32_nbsd_le_vec,
1354	&sh_elf32_symbian_le_vec,
1355	&sh_elf32_vxworks_vec,
1356	&sh_elf32_vxworks_le_vec,
1357	&sh_pe_le_vec,
1358	&sh_pei_le_vec,
1359
1360	&sparc_aout_le_vec,
1361	&sparc_aout_linux_vec,
1362	&sparc_aout_lynx_vec,
1363	&sparc_aout_nbsd_vec,
1364	&sparc_aout_sunos_be_vec,
1365	&sparc_coff_vec,
1366	&sparc_coff_lynx_vec,
1367	&sparc_elf32_vec,
1368	&sparc_elf32_sol2_vec,
1369	&sparc_elf32_vxworks_vec,
1370#ifdef BFD64
1371	&sparc_elf64_vec,
1372	&sparc_elf64_fbsd_vec,
1373	&sparc_elf64_sol2_vec,
1374#endif
1375	&sparc_nlm32_vec,
1376
1377	&spu_elf32_vec,
1378
1379	&sym_vec,
1380
1381	&tic30_aout_vec,
1382	&tic30_coff_vec,
1383	&tic54x_coff0_beh_vec,
1384	&tic54x_coff0_vec,
1385	&tic54x_coff1_beh_vec,
1386	&tic54x_coff1_vec,
1387	&tic54x_coff2_beh_vec,
1388	&tic54x_coff2_vec,
1389	&tic6x_elf32_be_vec,
1390	&tic6x_elf32_le_vec,
1391	&tic80_coff_vec,
1392
1393	&tilegx_elf32_be_vec,
1394	&tilegx_elf32_le_vec,
1395#ifdef BFD64
1396	&tilegx_elf64_be_vec,
1397	&tilegx_elf64_le_vec,
1398#endif
1399	&tilepro_elf32_vec,
1400
1401	&ft32_elf32_vec,
1402
1403	&v800_elf32_vec,
1404	&v850_elf32_vec,
1405
1406	&vax_aout_1knbsd_vec,
1407	&vax_aout_bsd_vec,
1408	&vax_aout_nbsd_vec,
1409	&vax_elf32_vec,
1410
1411	&visium_elf32_vec,
1412
1413	&w65_coff_vec,
1414
1415	&we32k_coff_vec,
1416
1417#ifdef BFD64
1418	&x86_64_coff_vec,
1419	&x86_64_elf32_vec,
1420	&x86_64_elf32_nacl_vec,
1421	&x86_64_elf64_vec,
1422	&x86_64_elf64_cloudabi_vec,
1423	&x86_64_elf64_fbsd_vec,
1424	&x86_64_elf64_nacl_vec,
1425	&x86_64_elf64_sol2_vec,
1426	&x86_64_mach_o_vec,
1427	&x86_64_pe_vec,
1428	&x86_64_pe_be_vec,
1429	&x86_64_pei_vec,
1430#endif
1431
1432	&xc16x_elf32_vec,
1433
1434	&xgate_elf32_vec,
1435
1436	&xstormy16_elf32_vec,
1437
1438	&xtensa_elf32_be_vec,
1439	&xtensa_elf32_le_vec,
1440
1441	&z80_coff_vec,
1442
1443	&z8k_coff_vec,
1444#endif /* not SELECT_VECS */
1445
1446/* Always support S-records, for convenience.  */
1447	&srec_vec,
1448	&symbolsrec_vec,
1449/* And verilog.  */
1450	&verilog_vec,
1451/* And tekhex */
1452	&tekhex_vec,
1453/* Likewise for binary output.  */
1454	&binary_vec,
1455/* Likewise for ihex.  */
1456	&ihex_vec,
1457
1458/* Add any required traditional-core-file-handler.  */
1459
1460#ifdef AIX386_CORE
1461	&core_aix386_vec,
1462#endif
1463#if 0
1464	/* We don't include cisco_core_*_vec.  Although it has a magic number,
1465	   the magic number isn't at the beginning of the file, and thus
1466	   might spuriously match other kinds of files.  */
1467	&core_cisco_be_vec,
1468	&core_cisco_le_vec,
1469#endif
1470#ifdef HPPABSD_CORE
1471	&core_hppabsd_vec,
1472#endif
1473#ifdef HPUX_CORE
1474	&core_hpux_vec,
1475#endif
1476#ifdef IRIX_CORE
1477	&core_irix_vec,
1478#endif
1479#ifdef NETBSD_CORE
1480	&core_netbsd_vec,
1481#endif
1482#ifdef OSF_CORE
1483	&core_osf_vec,
1484#endif
1485#ifdef PTRACE_CORE
1486	&core_ptrace_vec,
1487#endif
1488#ifdef SCO5_CORE
1489	&core_sco5_vec,
1490#endif
1491#ifdef TRAD_CORE
1492	&core_trad_vec,
1493#endif
1494
1495	NULL /* end of list marker */
1496};
1497const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1498
1499/* bfd_default_vector[0] contains either the address of the default vector,
1500   if there is one, or zero if there isn't.  */
1501
1502const bfd_target *bfd_default_vector[] = {
1503#ifdef DEFAULT_VECTOR
1504	&DEFAULT_VECTOR,
1505#endif
1506	NULL
1507};
1508
1509/* bfd_associated_vector[] contains the associated target vectors used
1510   to reduce the ambiguity in bfd_check_format_matches.  */
1511
1512static const bfd_target *_bfd_associated_vector[] = {
1513#ifdef ASSOCIATED_VECS
1514	ASSOCIATED_VECS,
1515#endif
1516	NULL
1517};
1518const bfd_target * const *bfd_associated_vector = _bfd_associated_vector;
1519
1520/* When there is an ambiguous match, bfd_check_format_matches puts the
1521   names of the matching targets in an array.  This variable is the maximum
1522   number of entries that the array could possibly need.  */
1523const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1524
1525/* This array maps configuration triplets onto BFD vectors.  */
1526
1527struct targmatch
1528{
1529  /* The configuration triplet.  */
1530  const char *triplet;
1531  /* The BFD vector.  If this is NULL, then the vector is found by
1532     searching forward for the next structure with a non NULL vector
1533     field.  */
1534  const bfd_target *vector;
1535};
1536
1537/* targmatch.h is built by Makefile out of config.bfd.  */
1538static const struct targmatch bfd_target_match[] = {
1539#include "targmatch.h"
1540  { NULL, NULL }
1541};
1542
1543/* Find a target vector, given a name or configuration triplet.  */
1544
1545static const bfd_target *
1546find_target (const char *name)
1547{
1548  const bfd_target * const *target;
1549  const struct targmatch *match;
1550
1551  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1552    if (strcmp (name, (*target)->name) == 0)
1553      return *target;
1554
1555  /* If we couldn't match on the exact name, try matching on the
1556     configuration triplet.  FIXME: We should run the triplet through
1557     config.sub first, but that is hard.  */
1558  for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1559    {
1560      if (fnmatch (match->triplet, name, 0) == 0)
1561	{
1562	  while (match->vector == NULL)
1563	    ++match;
1564	  return match->vector;
1565	}
1566    }
1567
1568  bfd_set_error (bfd_error_invalid_target);
1569  return NULL;
1570}
1571
1572/*
1573FUNCTION
1574	bfd_set_default_target
1575
1576SYNOPSIS
1577	bfd_boolean bfd_set_default_target (const char *name);
1578
1579DESCRIPTION
1580	Set the default target vector to use when recognizing a BFD.
1581	This takes the name of the target, which may be a BFD target
1582	name or a configuration triplet.
1583*/
1584
1585bfd_boolean
1586bfd_set_default_target (const char *name)
1587{
1588  const bfd_target *target;
1589
1590  if (bfd_default_vector[0] != NULL
1591      && strcmp (name, bfd_default_vector[0]->name) == 0)
1592    return TRUE;
1593
1594  target = find_target (name);
1595  if (target == NULL)
1596    return FALSE;
1597
1598  bfd_default_vector[0] = target;
1599  return TRUE;
1600}
1601
1602/*
1603FUNCTION
1604	bfd_find_target
1605
1606SYNOPSIS
1607	const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
1608
1609DESCRIPTION
1610	Return a pointer to the transfer vector for the object target
1611	named @var{target_name}.  If @var{target_name} is <<NULL>>,
1612	choose the one in the environment variable <<GNUTARGET>>; if
1613	that is null or not defined, then choose the first entry in the
1614	target list.  Passing in the string "default" or setting the
1615	environment variable to "default" will cause the first entry in
1616	the target list to be returned, and "target_defaulted" will be
1617	set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1618	<<bfd_check_format>> to loop over all the targets to find the
1619	one that matches the file being read.
1620*/
1621
1622const bfd_target *
1623bfd_find_target (const char *target_name, bfd *abfd)
1624{
1625  const char *targname;
1626  const bfd_target *target;
1627
1628  if (target_name != NULL)
1629    targname = target_name;
1630  else
1631    targname = getenv ("GNUTARGET");
1632
1633  /* This is safe; the vector cannot be null.  */
1634  if (targname == NULL || strcmp (targname, "default") == 0)
1635    {
1636      if (bfd_default_vector[0] != NULL)
1637	target = bfd_default_vector[0];
1638      else
1639	target = bfd_target_vector[0];
1640      if (abfd)
1641	{
1642	  abfd->xvec = target;
1643	  abfd->target_defaulted = TRUE;
1644	}
1645      return target;
1646    }
1647
1648  if (abfd)
1649    abfd->target_defaulted = FALSE;
1650
1651  target = find_target (targname);
1652  if (target == NULL)
1653    return NULL;
1654
1655  if (abfd)
1656    abfd->xvec = target;
1657  return target;
1658}
1659
1660/* Helper function for bfd_get_target_info to determine the target's
1661   architecture.  This method handles bfd internal target names as
1662   tuples and triplets.  */
1663static bfd_boolean
1664_bfd_find_arch_match (const char *tname, const char **arch,
1665		      const char **def_target_arch)
1666{
1667  if (!arch)
1668    return FALSE;
1669
1670  while (*arch != NULL)
1671    {
1672      const char *in_a = strstr (*arch, tname);
1673      char end_ch = (in_a ? in_a[strlen (tname)] : 0);
1674
1675      if (in_a && (in_a == *arch || in_a[-1] == ':')
1676          && end_ch == 0)
1677        {
1678          *def_target_arch = *arch;
1679          return TRUE;
1680        }
1681      arch++;
1682    }
1683  return FALSE;
1684}
1685
1686/*
1687FUNCTION
1688	bfd_get_target_info
1689SYNOPSIS
1690	const bfd_target *bfd_get_target_info (const char *target_name,
1691					       bfd *abfd,
1692					       bfd_boolean *is_bigendian,
1693					       int *underscoring,
1694					       const char **def_target_arch);
1695DESCRIPTION
1696        Return a pointer to the transfer vector for the object target
1697        named @var{target_name}.  If @var{target_name} is <<NULL>>,
1698        choose the one in the environment variable <<GNUTARGET>>; if
1699        that is null or not defined, then choose the first entry in the
1700        target list.  Passing in the string "default" or setting the
1701        environment variable to "default" will cause the first entry in
1702        the target list to be returned, and "target_defaulted" will be
1703        set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1704        <<bfd_check_format>> to loop over all the targets to find the
1705        one that matches the file being read.
1706	If @var{is_bigendian} is not <<NULL>>, then set this value to target's
1707	endian mode. True for big-endian, FALSE for little-endian or for
1708	invalid target.
1709	If @var{underscoring} is not <<NULL>>, then set this value to target's
1710	underscoring mode. Zero for none-underscoring, -1 for invalid target,
1711	else the value of target vector's symbol underscoring.
1712	If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
1713	string specified by the target_name.
1714*/
1715const bfd_target *
1716bfd_get_target_info (const char *target_name, bfd *abfd,
1717		     bfd_boolean *is_bigendian,
1718		     int *underscoring, const char **def_target_arch)
1719{
1720  const bfd_target *target_vec;
1721
1722  if (is_bigendian)
1723    *is_bigendian = FALSE;
1724  if (underscoring)
1725    *underscoring = -1;
1726  if (def_target_arch)
1727    *def_target_arch = NULL;
1728  target_vec = bfd_find_target (target_name, abfd);
1729  if (! target_vec)
1730    return NULL;
1731  if (is_bigendian)
1732    *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE
1733							       : FALSE);
1734  if (underscoring)
1735    *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
1736
1737  if (def_target_arch)
1738    {
1739      const char *tname = target_vec->name;
1740      const char **arches = bfd_arch_list ();
1741
1742      if (arches && tname)
1743        {
1744          char *hyp = strchr (tname, '-');
1745
1746          if (hyp != NULL)
1747            {
1748              tname = ++hyp;
1749
1750	      /* Make sure we detect architecture names
1751		 for triplets like "pe-arm-wince-little".  */
1752	      if (!_bfd_find_arch_match (tname, arches, def_target_arch))
1753		{
1754		  char new_tname[50];
1755
1756		  strcpy (new_tname, hyp);
1757		  while ((hyp = strrchr (new_tname, '-')) != NULL)
1758		    {
1759		      *hyp = 0;
1760		      if (_bfd_find_arch_match (new_tname, arches,
1761						def_target_arch))
1762			break;
1763		    }
1764		}
1765	    }
1766	  else
1767	    _bfd_find_arch_match (tname, arches, def_target_arch);
1768	}
1769
1770      if (arches)
1771        free (arches);
1772    }
1773  return target_vec;
1774}
1775
1776/*
1777FUNCTION
1778	bfd_target_list
1779
1780SYNOPSIS
1781	const char ** bfd_target_list (void);
1782
1783DESCRIPTION
1784	Return a freshly malloced NULL-terminated
1785	vector of the names of all the valid BFD targets. Do not
1786	modify the names.
1787
1788*/
1789
1790const char **
1791bfd_target_list (void)
1792{
1793  int vec_length = 0;
1794  bfd_size_type amt;
1795  const bfd_target * const *target;
1796  const  char **name_list, **name_ptr;
1797
1798  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1799    vec_length++;
1800
1801  amt = (vec_length + 1) * sizeof (char **);
1802  name_ptr = name_list = (const  char **) bfd_malloc (amt);
1803
1804  if (name_list == NULL)
1805    return NULL;
1806
1807  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1808    if (target == &bfd_target_vector[0]
1809	|| *target != bfd_target_vector[0])
1810      *name_ptr++ = (*target)->name;
1811
1812  *name_ptr = NULL;
1813  return name_list;
1814}
1815
1816/*
1817FUNCTION
1818	bfd_iterate_over_targets
1819
1820SYNOPSIS
1821	const bfd_target *bfd_iterate_over_targets
1822	  (int (*func) (const bfd_target *, void *),
1823	   void *data);
1824
1825DESCRIPTION
1826	Call @var{func} for each target in the list of BFD target
1827	vectors, passing @var{data} to @var{func}.  Stop iterating if
1828	@var{func} returns a non-zero result, and return that target
1829	vector.  Return NULL if @var{func} always returns zero.
1830*/
1831
1832const bfd_target *
1833bfd_iterate_over_targets (int (*func) (const bfd_target *, void *),
1834			  void *data)
1835{
1836  const bfd_target *const *target;
1837
1838  for (target = bfd_target_vector; *target != NULL; ++target)
1839    if (func (*target, data))
1840      return *target;
1841
1842  return NULL;
1843}
1844
1845/*
1846FUNCTION
1847	bfd_flavour_name
1848
1849SYNOPSIS
1850	const char *bfd_flavour_name (enum bfd_flavour flavour);
1851
1852DESCRIPTION
1853	Return the string form of @var{flavour}.
1854*/
1855
1856const char *
1857bfd_flavour_name (enum bfd_flavour flavour)
1858{
1859  switch (flavour)
1860    {
1861    case bfd_target_unknown_flavour: return "unknown file format";
1862    case bfd_target_aout_flavour: return "a.out";
1863    case bfd_target_coff_flavour: return "COFF";
1864    case bfd_target_ecoff_flavour: return "ECOFF";
1865    case bfd_target_xcoff_flavour: return "XCOFF";
1866    case bfd_target_elf_flavour: return "ELF";
1867    case bfd_target_ieee_flavour: return "IEEE";
1868    case bfd_target_nlm_flavour: return "NLM";
1869    case bfd_target_oasys_flavour: return "Oasys";
1870    case bfd_target_tekhex_flavour: return "Tekhex";
1871    case bfd_target_srec_flavour: return "Srec";
1872    case bfd_target_verilog_flavour: return "Verilog";
1873    case bfd_target_ihex_flavour: return "Ihex";
1874    case bfd_target_som_flavour: return "SOM";
1875    case bfd_target_os9k_flavour: return "OS9K";
1876    case bfd_target_versados_flavour: return "Versados";
1877    case bfd_target_msdos_flavour: return "MSDOS";
1878    case bfd_target_ovax_flavour: return "Ovax";
1879    case bfd_target_evax_flavour: return "Evax";
1880    case bfd_target_mmo_flavour: return "mmo";
1881    case bfd_target_mach_o_flavour: return "MACH_O";
1882    case bfd_target_pef_flavour: return "PEF";
1883    case bfd_target_pef_xlib_flavour: return "PEF_XLIB";
1884    case bfd_target_sym_flavour: return "SYM";
1885    /* There is no "default" case here so that -Wswitch (part of -Wall)
1886       catches missing entries.  */
1887    }
1888
1889  abort ();
1890}
1891