targets.c revision 107492
1/* Generic target-file-type support for the BFD library.
2   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3   2000, 2001, 2002
4   Free Software Foundation, Inc.
5   Written by Cygnus Support.
6
7This file is part of BFD, the Binary File Descriptor library.
8
9This program is free software; you can redistribute it and/or modify
10it under the terms of the GNU General Public License as published by
11the Free Software Foundation; either version 2 of the License, or
12(at your option) any later version.
13
14This program is distributed in the hope that it will be useful,
15but WITHOUT ANY WARRANTY; without even the implied warranty of
16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17GNU General Public License for more details.
18
19You should have received a copy of the GNU General Public License
20along with this program; if not, write to the Free Software
21Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
22
23#include "bfd.h"
24#include "sysdep.h"
25#include "libbfd.h"
26#include "fnmatch.h"
27
28/*
29SECTION
30	Targets
31
32DESCRIPTION
33	Each port of BFD to a different machine requries the creation
34	of a target back end. All the back end provides to the root
35	part of BFD is a structure containing pointers to functions
36	which perform certain low level operations on files. BFD
37	translates the applications's requests through a pointer into
38	calls to the back end routines.
39
40	When a file is opened with <<bfd_openr>>, its format and
41	target are unknown. BFD uses various mechanisms to determine
42	how to interpret the file. The operations performed are:
43
44	o Create a BFD by calling the internal routine
45	<<_bfd_new_bfd>>, then call <<bfd_find_target>> with the
46	target string supplied to <<bfd_openr>> and the new BFD pointer.
47
48	o If a null target string was provided to <<bfd_find_target>>,
49	look up the environment variable <<GNUTARGET>> and use
50	that as the target string.
51
52	o If the target string is still <<NULL>>, or the target string is
53	<<default>>, then use the first item in the target vector
54	as the target type, and set <<target_defaulted>> in the BFD to
55	cause <<bfd_check_format>> to loop through all the targets.
56	@xref{bfd_target}.  @xref{Formats}.
57
58	o Otherwise, inspect the elements in the target vector
59	one by one, until a match on target name is found. When found,
60	use it.
61
62	o Otherwise return the error <<bfd_error_invalid_target>> to
63	<<bfd_openr>>.
64
65	o <<bfd_openr>> attempts to open the file using
66	<<bfd_open_file>>, and returns the BFD.
67
68	Once the BFD has been opened and the target selected, the file
69	format may be determined. This is done by calling
70	<<bfd_check_format>> on the BFD with a suggested format.
71	If <<target_defaulted>> has been set, each possible target
72	type is tried to see if it recognizes the specified format.
73	<<bfd_check_format>> returns <<true>> when the caller guesses right.
74@menu
75@* bfd_target::
76@end menu
77*/
78
79/*
80
81INODE
82	bfd_target,  , Targets, Targets
83DOCDD
84SUBSECTION
85	bfd_target
86
87DESCRIPTION
88	This structure contains everything that BFD knows about a
89	target. It includes things like its byte order, name, and which
90	routines to call to do various operations.
91
92	Every BFD points to a target structure with its <<xvec>>
93	member.
94
95	The macros below are used to dispatch to functions through the
96	<<bfd_target>> vector. They are used in a number of macros further
97	down in @file{bfd.h}, and are also used when calling various
98	routines by hand inside the BFD implementation.  The @var{arglist}
99	argument must be parenthesized; it contains all the arguments
100	to the called function.
101
102	They make the documentation (more) unpleasant to read, so if
103	someone wants to fix this and not break the above, please do.
104
105.#define BFD_SEND(bfd, message, arglist) \
106.               ((*((bfd)->xvec->message)) arglist)
107.
108.#ifdef DEBUG_BFD_SEND
109.#undef BFD_SEND
110.#define BFD_SEND(bfd, message, arglist) \
111.  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
112.    ((*((bfd)->xvec->message)) arglist) : \
113.    (bfd_assert (__FILE__,__LINE__), NULL))
114.#endif
115
116	For operations which index on the BFD format:
117
118.#define BFD_SEND_FMT(bfd, message, arglist) \
119.            (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)
120.
121.#ifdef DEBUG_BFD_SEND
122.#undef BFD_SEND_FMT
123.#define BFD_SEND_FMT(bfd, message, arglist) \
124.  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
125.   (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
126.   (bfd_assert (__FILE__,__LINE__), NULL))
127.#endif
128.
129	This is the structure which defines the type of BFD this is.  The
130	<<xvec>> member of the struct <<bfd>> itself points here.  Each
131	module that implements access to a different target under BFD,
132	defines one of these.
133
134	FIXME, these names should be rationalised with the names of
135	the entry points which call them. Too bad we can't have one
136	macro to define them both!
137
138.enum bfd_flavour
139.{
140.  bfd_target_unknown_flavour,
141.  bfd_target_aout_flavour,
142.  bfd_target_coff_flavour,
143.  bfd_target_ecoff_flavour,
144.  bfd_target_xcoff_flavour,
145.  bfd_target_elf_flavour,
146.  bfd_target_ieee_flavour,
147.  bfd_target_nlm_flavour,
148.  bfd_target_oasys_flavour,
149.  bfd_target_tekhex_flavour,
150.  bfd_target_srec_flavour,
151.  bfd_target_ihex_flavour,
152.  bfd_target_som_flavour,
153.  bfd_target_os9k_flavour,
154.  bfd_target_versados_flavour,
155.  bfd_target_msdos_flavour,
156.  bfd_target_ovax_flavour,
157.  bfd_target_evax_flavour,
158.  bfd_target_mmo_flavour
159.};
160.
161.enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
162.
163.{* Forward declaration.  *}
164.typedef struct bfd_link_info _bfd_link_info;
165.
166.typedef struct bfd_target
167.{
168.  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
169.  char *name;
170.
171. {* The "flavour" of a back end is a general indication about
172.    the contents of a file.  *}
173.  enum bfd_flavour flavour;
174.
175.  {* The order of bytes within the data area of a file.  *}
176.  enum bfd_endian byteorder;
177.
178. {* The order of bytes within the header parts of a file.  *}
179.  enum bfd_endian header_byteorder;
180.
181.  {* A mask of all the flags which an executable may have set -
182.     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
183.  flagword object_flags;
184.
185. {* A mask of all the flags which a section may have set - from
186.    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
187.  flagword section_flags;
188.
189. {* The character normally found at the front of a symbol.
190.    (if any), perhaps `_'.  *}
191.  char symbol_leading_char;
192.
193. {* The pad character for file names within an archive header.  *}
194.  char ar_pad_char;
195.
196.  {* The maximum number of characters in an archive header.  *}
197.  unsigned short ar_max_namelen;
198.
199.  {* Entries for byte swapping for data. These are different from the
200.     other entry points, since they don't take a BFD asthe first argument.
201.     Certain other handlers could do the same.  *}
202.  bfd_vma        (*bfd_getx64) PARAMS ((const bfd_byte *));
203.  bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
204.  void           (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
205.  bfd_vma        (*bfd_getx32) PARAMS ((const bfd_byte *));
206.  bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
207.  void           (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
208.  bfd_vma        (*bfd_getx16) PARAMS ((const bfd_byte *));
209.  bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
210.  void           (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
211.
212.  {* Byte swapping for the headers.  *}
213.  bfd_vma        (*bfd_h_getx64) PARAMS ((const bfd_byte *));
214.  bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
215.  void           (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
216.  bfd_vma        (*bfd_h_getx32) PARAMS ((const bfd_byte *));
217.  bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
218.  void           (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
219.  bfd_vma        (*bfd_h_getx16) PARAMS ((const bfd_byte *));
220.  bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
221.  void           (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
222.
223.  {* Format dependent routines: these are vectors of entry points
224.     within the target vector structure, one for each format to check.  *}
225.
226.  {* Check the format of a file being read.  Return a <<bfd_target *>> or zero.  *}
227.  const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
228.
229.  {* Set the format of a file being written.  *}
230.  boolean  (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
231.
232.  {* Write cached information into a file being written, at <<bfd_close>>.  *}
233.  boolean  (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
234.
235The general target vector.  These vectors are initialized using the
236BFD_JUMP_TABLE macros.
237.
238.  {* Generic entry points.  *}
239Do not "beautify" the CONCAT* macro args.  Traditional C will not
240remove whitespace added here, and thus will fail to concatenate
241the tokens.
242.#define BFD_JUMP_TABLE_GENERIC(NAME) \
243.CONCAT2 (NAME,_close_and_cleanup), \
244.CONCAT2 (NAME,_bfd_free_cached_info), \
245.CONCAT2 (NAME,_new_section_hook), \
246.CONCAT2 (NAME,_get_section_contents), \
247.CONCAT2 (NAME,_get_section_contents_in_window)
248.
249.  {* Called when the BFD is being closed to do any necessary cleanup.  *}
250.  boolean  (*_close_and_cleanup) PARAMS ((bfd *));
251.  {* Ask the BFD to free all cached information.  *}
252.  boolean  (*_bfd_free_cached_info) PARAMS ((bfd *));
253.  {* Called when a new section is created.  *}
254.  boolean  (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
255.  {* Read the contents of a section.  *}
256.  boolean  (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
257.                                                 file_ptr, bfd_size_type));
258.  boolean  (*_bfd_get_section_contents_in_window)
259.    PARAMS ((bfd *, sec_ptr, bfd_window *, file_ptr, bfd_size_type));
260.
261.  {* Entry points to copy private data.  *}
262.#define BFD_JUMP_TABLE_COPY(NAME) \
263.CONCAT2 (NAME,_bfd_copy_private_bfd_data), \
264.CONCAT2 (NAME,_bfd_merge_private_bfd_data), \
265.CONCAT2 (NAME,_bfd_copy_private_section_data), \
266.CONCAT2 (NAME,_bfd_copy_private_symbol_data), \
267.CONCAT2 (NAME,_bfd_set_private_flags), \
268.CONCAT2 (NAME,_bfd_print_private_bfd_data) \
269.  {* Called to copy BFD general private data from one object file
270.     to another.  *}
271.  boolean  (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
272.  {* Called to merge BFD general private data from one object file
273.     to a common output file when linking.  *}
274.  boolean  (*_bfd_merge_private_bfd_data) PARAMS ((bfd *, bfd *));
275.  {* Called to copy BFD private section data from one object file
276.     to another.  *}
277.  boolean  (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
278.                                                      bfd *, sec_ptr));
279.  {* Called to copy BFD private symbol data from one symbol
280.     to another.  *}
281.  boolean  (*_bfd_copy_private_symbol_data) PARAMS ((bfd *, asymbol *,
282.                                                     bfd *, asymbol *));
283.  {* Called to set private backend flags.  *}
284.  boolean  (*_bfd_set_private_flags) PARAMS ((bfd *, flagword));
285.
286.  {* Called to print private BFD data.  *}
287.  boolean  (*_bfd_print_private_bfd_data) PARAMS ((bfd *, PTR));
288.
289.  {* Core file entry points.  *}
290.#define BFD_JUMP_TABLE_CORE(NAME) \
291.CONCAT2 (NAME,_core_file_failing_command), \
292.CONCAT2 (NAME,_core_file_failing_signal), \
293.CONCAT2 (NAME,_core_file_matches_executable_p)
294.  char *   (*_core_file_failing_command) PARAMS ((bfd *));
295.  int      (*_core_file_failing_signal) PARAMS ((bfd *));
296.  boolean  (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
297.
298.  {* Archive entry points.  *}
299.#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
300.CONCAT2 (NAME,_slurp_armap), \
301.CONCAT2 (NAME,_slurp_extended_name_table), \
302.CONCAT2 (NAME,_construct_extended_name_table), \
303.CONCAT2 (NAME,_truncate_arname), \
304.CONCAT2 (NAME,_write_armap), \
305.CONCAT2 (NAME,_read_ar_hdr), \
306.CONCAT2 (NAME,_openr_next_archived_file), \
307.CONCAT2 (NAME,_get_elt_at_index), \
308.CONCAT2 (NAME,_generic_stat_arch_elt), \
309.CONCAT2 (NAME,_update_armap_timestamp)
310.  boolean  (*_bfd_slurp_armap) PARAMS ((bfd *));
311.  boolean  (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
312.  boolean  (*_bfd_construct_extended_name_table)
313.    PARAMS ((bfd *, char **, bfd_size_type *, const char **));
314.  void     (*_bfd_truncate_arname) PARAMS ((bfd *, const char *, char *));
315.  boolean  (*write_armap)
316.    PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int));
317.  PTR      (*_bfd_read_ar_hdr_fn) PARAMS ((bfd *));
318.  bfd *    (*openr_next_archived_file) PARAMS ((bfd *, bfd *));
319.#define bfd_get_elt_at_index(b,i) BFD_SEND(b, _bfd_get_elt_at_index, (b,i))
320.  bfd *    (*_bfd_get_elt_at_index) PARAMS ((bfd *, symindex));
321.  int      (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
322.  boolean  (*_bfd_update_armap_timestamp) PARAMS ((bfd *));
323.
324.  {* Entry points used for symbols.  *}
325.#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
326.CONCAT2 (NAME,_get_symtab_upper_bound), \
327.CONCAT2 (NAME,_get_symtab), \
328.CONCAT2 (NAME,_make_empty_symbol), \
329.CONCAT2 (NAME,_print_symbol), \
330.CONCAT2 (NAME,_get_symbol_info), \
331.CONCAT2 (NAME,_bfd_is_local_label_name), \
332.CONCAT2 (NAME,_get_lineno), \
333.CONCAT2 (NAME,_find_nearest_line), \
334.CONCAT2 (NAME,_bfd_make_debug_symbol), \
335.CONCAT2 (NAME,_read_minisymbols), \
336.CONCAT2 (NAME,_minisymbol_to_symbol)
337.  long     (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
338.  long     (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
339.                                                struct symbol_cache_entry **));
340.  struct symbol_cache_entry *
341.           (*_bfd_make_empty_symbol) PARAMS ((bfd *));
342.  void     (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
343.                                         struct symbol_cache_entry *,
344.                                         bfd_print_symbol_type));
345.#define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
346.  void     (*_bfd_get_symbol_info) PARAMS ((bfd *,
347.                                            struct symbol_cache_entry *,
348.                                            symbol_info *));
349.#define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
350.  boolean  (*_bfd_is_local_label_name) PARAMS ((bfd *, const char *));
351.
352.  alent *  (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
353.  boolean  (*_bfd_find_nearest_line)
354.    PARAMS ((bfd *, struct sec *, struct symbol_cache_entry **, bfd_vma,
355.             const char **, const char **, unsigned int *));
356. {* Back-door to allow format-aware applications to create debug symbols
357.    while using BFD for everything else.  Currently used by the assembler
358.    when creating COFF files.  *}
359.  asymbol *(*_bfd_make_debug_symbol) PARAMS ((bfd *, void *,
360.                                              unsigned long size));
361.#define bfd_read_minisymbols(b, d, m, s) \
362.  BFD_SEND (b, _read_minisymbols, (b, d, m, s))
363.  long     (*_read_minisymbols) PARAMS ((bfd *, boolean, PTR *,
364.                                         unsigned int *));
365.#define bfd_minisymbol_to_symbol(b, d, m, f) \
366.  BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
367.  asymbol *(*_minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR,
368.                                             asymbol *));
369.
370.  {* Routines for relocs.  *}
371.#define BFD_JUMP_TABLE_RELOCS(NAME) \
372.CONCAT2 (NAME,_get_reloc_upper_bound), \
373.CONCAT2 (NAME,_canonicalize_reloc), \
374.CONCAT2 (NAME,_bfd_reloc_type_lookup)
375.  long     (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
376.  long     (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
377.                                               struct symbol_cache_entry **));
378.  {* See documentation on reloc types.  *}
379.  reloc_howto_type *
380.           (*reloc_type_lookup) PARAMS ((bfd *, bfd_reloc_code_real_type));
381.
382.  {* Routines used when writing an object file.  *}
383.#define BFD_JUMP_TABLE_WRITE(NAME) \
384.CONCAT2 (NAME,_set_arch_mach), \
385.CONCAT2 (NAME,_set_section_contents)
386.  boolean  (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
387.                                          unsigned long));
388.  boolean  (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
389.                                                 file_ptr, bfd_size_type));
390.
391.  {* Routines used by the linker.  *}
392.#define BFD_JUMP_TABLE_LINK(NAME) \
393.CONCAT2 (NAME,_sizeof_headers), \
394.CONCAT2 (NAME,_bfd_get_relocated_section_contents), \
395.CONCAT2 (NAME,_bfd_relax_section), \
396.CONCAT2 (NAME,_bfd_link_hash_table_create), \
397.CONCAT2 (NAME,_bfd_link_hash_table_free), \
398.CONCAT2 (NAME,_bfd_link_add_symbols), \
399.CONCAT2 (NAME,_bfd_link_just_syms), \
400.CONCAT2 (NAME,_bfd_final_link), \
401.CONCAT2 (NAME,_bfd_link_split_section), \
402.CONCAT2 (NAME,_bfd_gc_sections), \
403.CONCAT2 (NAME,_bfd_merge_sections), \
404.CONCAT2 (NAME,_bfd_discard_group)
405.  int      (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
406.  bfd_byte *(*_bfd_get_relocated_section_contents)
407.    PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
408.             bfd_byte *, boolean, struct symbol_cache_entry **));
409.
410.  boolean  (*_bfd_relax_section)
411.    PARAMS ((bfd *, struct sec *, struct bfd_link_info *, boolean *));
412.
413.  {* Create a hash table for the linker.  Different backends store
414.     different information in this table.  *}
415.  struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
416.
417.  {* Release the memory associated with the linker hash table.  *}
418.  void (*_bfd_link_hash_table_free) PARAMS ((struct bfd_link_hash_table *));
419.
420.  {* Add symbols from this object file into the hash table.  *}
421.  boolean  (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
422.
423.  {* Indicate that we are only retrieving symbol values from this section.  *}
424.  void     (*_bfd_link_just_syms) PARAMS ((asection *, struct bfd_link_info *));
425.
426.  {* Do a link based on the link_order structures attached to each
427.     section of the BFD.  *}
428.  boolean  (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
429.
430.  {* Should this section be split up into smaller pieces during linking.  *}
431.  boolean  (*_bfd_link_split_section) PARAMS ((bfd *, struct sec *));
432.
433.  {* Remove sections that are not referenced from the output.  *}
434.  boolean  (*_bfd_gc_sections) PARAMS ((bfd *, struct bfd_link_info *));
435.
436.  {* Attempt to merge SEC_MERGE sections.  *}
437.  boolean  (*_bfd_merge_sections) PARAMS ((bfd *, struct bfd_link_info *));
438.
439.  {* Discard members of a group.  *}
440.  boolean  (*_bfd_discard_group) PARAMS ((bfd *, struct sec *));
441.
442.  {* Routines to handle dynamic symbols and relocs.  *}
443.#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
444.CONCAT2 (NAME,_get_dynamic_symtab_upper_bound), \
445.CONCAT2 (NAME,_canonicalize_dynamic_symtab), \
446.CONCAT2 (NAME,_get_dynamic_reloc_upper_bound), \
447.CONCAT2 (NAME,_canonicalize_dynamic_reloc)
448.  {* Get the amount of memory required to hold the dynamic symbols.  *}
449.  long     (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
450.  {* Read in the dynamic symbols.  *}
451.  long     (*_bfd_canonicalize_dynamic_symtab)
452.    PARAMS ((bfd *, struct symbol_cache_entry **));
453.  {* Get the amount of memory required to hold the dynamic relocs.  *}
454.  long     (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
455.  {* Read in the dynamic relocs.  *}
456.  long     (*_bfd_canonicalize_dynamic_reloc)
457.    PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
458.
459
460A pointer to an alternative bfd_target in case the current one is not
461satisfactory.  This can happen when the target cpu supports both big
462and little endian code, and target chosen by the linker has the wrong
463endianness.  The function open_output() in ld/ldlang.c uses this field
464to find an alternative output format that is suitable.
465
466.  {* Opposite endian version of this target.  *}
467.  const struct bfd_target * alternative_target;
468.
469
470.  {* Data for use by back-end routines, which isn't
471.     generic enough to belong in this structure.  *}
472.  PTR backend_data;
473.
474.} bfd_target;
475.
476*/
477
478/* All known xvecs (even those that don't compile on all systems).
479   Alphabetized for easy reference.
480   They are listed a second time below, since
481   we can't intermix extern's and initializers.  */
482extern const bfd_target a29kcoff_big_vec;
483extern const bfd_target a_out_adobe_vec;
484extern const bfd_target aix5coff64_vec;
485extern const bfd_target aout0_big_vec;
486extern const bfd_target aout_arm_big_vec;
487extern const bfd_target aout_arm_little_vec;
488extern const bfd_target aout_mips_big_vec;
489extern const bfd_target aout_mips_little_vec;
490extern const bfd_target apollocoff_vec;
491extern const bfd_target arm_epoc_pe_big_vec;
492extern const bfd_target arm_epoc_pe_little_vec;
493extern const bfd_target arm_epoc_pei_big_vec;
494extern const bfd_target arm_epoc_pei_little_vec;
495extern const bfd_target armcoff_big_vec;
496extern const bfd_target armcoff_little_vec;
497extern const bfd_target armnetbsd_vec;
498extern const bfd_target armpe_big_vec;
499extern const bfd_target armpe_little_vec;
500extern const bfd_target armpei_big_vec;
501extern const bfd_target armpei_little_vec;
502extern const bfd_target b_out_vec_big_host;
503extern const bfd_target b_out_vec_little_host;
504extern const bfd_target bfd_efi_app_ia32_vec;
505extern const bfd_target bfd_efi_app_ia64_vec;
506extern const bfd_target bfd_elf32_avr_vec;
507extern const bfd_target bfd_elf32_big_generic_vec;
508extern const bfd_target bfd_elf32_bigarc_vec;
509extern const bfd_target bfd_elf32_bigarm_oabi_vec;
510extern const bfd_target bfd_elf32_bigarm_vec;
511extern const bfd_target bfd_elf32_bigmips_vec;
512extern const bfd_target bfd_elf32_cris_vec;
513extern const bfd_target bfd_elf32_d10v_vec;
514extern const bfd_target bfd_elf32_d30v_vec;
515extern const bfd_target bfd_elf32_dlx_big_vec;
516extern const bfd_target bfd_elf32_fr30_vec;
517extern const bfd_target bfd_elf32_frv_vec;
518extern const bfd_target bfd_elf32_h8300_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_freebsd_vec;
523extern const bfd_target bfd_elf32_i386_vec;
524extern const bfd_target bfd_elf32_i860_little_vec;
525extern const bfd_target bfd_elf32_i860_vec;
526extern const bfd_target bfd_elf32_i960_vec;
527extern const bfd_target bfd_elf32_ia64_big_vec;
528extern const bfd_target bfd_elf32_ia64_hpux_big_vec;
529extern const bfd_target bfd_elf32_little_generic_vec;
530extern const bfd_target bfd_elf32_littlearc_vec;
531extern const bfd_target bfd_elf32_littlearm_oabi_vec;
532extern const bfd_target bfd_elf32_littlearm_vec;
533extern const bfd_target bfd_elf32_littlemips_vec;
534extern const bfd_target bfd_elf32_m32r_vec;
535extern const bfd_target bfd_elf32_m68hc11_vec;
536extern const bfd_target bfd_elf32_m68hc12_vec;
537extern const bfd_target bfd_elf32_m68k_vec;
538extern const bfd_target bfd_elf32_m88k_vec;
539extern const bfd_target bfd_elf32_mcore_big_vec;
540extern const bfd_target bfd_elf32_mcore_little_vec;
541extern const bfd_target bfd_elf32_mn10200_vec;
542extern const bfd_target bfd_elf32_mn10300_vec;
543extern const bfd_target bfd_elf32_openrisc_vec;
544extern const bfd_target bfd_elf32_or32_big_vec;
545extern const bfd_target bfd_elf32_pj_vec;
546extern const bfd_target bfd_elf32_pjl_vec;
547extern const bfd_target bfd_elf32_powerpc_vec;
548extern const bfd_target bfd_elf32_powerpcle_vec;
549extern const bfd_target bfd_elf32_s390_vec;
550extern const bfd_target bfd_elf32_sh64_vec;
551extern const bfd_target bfd_elf32_sh64l_vec;
552extern const bfd_target bfd_elf32_sh64lnbsd_vec;
553extern const bfd_target bfd_elf32_sh64nbsd_vec;
554extern const bfd_target bfd_elf32_sh_vec;
555extern const bfd_target bfd_elf32_shblin_vec;
556extern const bfd_target bfd_elf32_shl_vec;
557extern const bfd_target bfd_elf32_shlin_vec;
558extern const bfd_target bfd_elf32_shlnbsd_vec;
559extern const bfd_target bfd_elf32_shnbsd_vec;
560extern const bfd_target bfd_elf32_sparc_vec;
561extern const bfd_target bfd_elf32_tradbigmips_vec;
562extern const bfd_target bfd_elf32_tradlittlemips_vec;
563extern const bfd_target bfd_elf32_us_cris_vec;
564extern const bfd_target bfd_elf32_v850_vec;
565extern const bfd_target bfd_elf32_vax_vec;
566extern const bfd_target bfd_elf32_xstormy16_vec;
567extern const bfd_target bfd_elf64_alpha_freebsd_vec;
568extern const bfd_target bfd_elf64_alpha_vec;
569extern const bfd_target bfd_elf64_big_generic_vec;
570extern const bfd_target bfd_elf64_bigmips_vec;
571extern const bfd_target bfd_elf64_hppa_linux_vec;
572extern const bfd_target bfd_elf64_hppa_vec;
573extern const bfd_target bfd_elf64_ia64_aix_big_vec;
574extern const bfd_target bfd_elf64_ia64_aix_little_vec;
575extern const bfd_target bfd_elf64_ia64_big_vec;
576extern const bfd_target bfd_elf64_ia64_hpux_big_vec;
577extern const bfd_target bfd_elf64_ia64_little_vec;
578extern const bfd_target bfd_elf64_little_generic_vec;
579extern const bfd_target bfd_elf64_littlemips_vec;
580extern const bfd_target bfd_elf64_mmix_vec;
581extern const bfd_target bfd_elf64_powerpc_vec;
582extern const bfd_target bfd_elf64_powerpcle_vec;
583extern const bfd_target bfd_elf64_s390_vec;
584extern const bfd_target bfd_elf64_sh64_vec;
585extern const bfd_target bfd_elf64_sh64l_vec;
586extern const bfd_target bfd_elf64_sh64lnbsd_vec;
587extern const bfd_target bfd_elf64_sh64nbsd_vec;
588extern const bfd_target bfd_elf64_sparc_vec;
589extern const bfd_target bfd_elf64_tradbigmips_vec;
590extern const bfd_target bfd_elf64_tradlittlemips_vec;
591extern const bfd_target bfd_elf64_x86_64_vec;
592extern const bfd_target bfd_mmo_vec;
593extern const bfd_target bfd_powerpc_pe_vec;
594extern const bfd_target bfd_powerpc_pei_vec;
595extern const bfd_target bfd_powerpcle_pe_vec;
596extern const bfd_target bfd_powerpcle_pei_vec;
597extern const bfd_target cris_aout_vec;
598extern const bfd_target demo_64_vec;
599extern const bfd_target ecoff_big_vec;
600extern const bfd_target ecoff_biglittle_vec;
601extern const bfd_target ecoff_little_vec;
602extern const bfd_target ecoffalpha_little_vec;
603extern const bfd_target go32coff_vec;
604extern const bfd_target go32stubbedcoff_vec;
605extern const bfd_target h8300coff_vec;
606extern const bfd_target h8500coff_vec;
607extern const bfd_target host_aout_vec;
608extern const bfd_target hp300bsd_vec;
609extern const bfd_target hp300hpux_vec;
610extern const bfd_target i386aout_vec;
611extern const bfd_target i386bsd_vec;
612extern const bfd_target i386coff_vec;
613extern const bfd_target i386dynix_vec;
614extern const bfd_target i386freebsd_vec;
615extern const bfd_target i386linux_vec;
616extern const bfd_target i386lynx_aout_vec;
617extern const bfd_target i386lynx_coff_vec;
618extern const bfd_target i386mach3_vec;
619extern const bfd_target i386msdos_vec;
620extern const bfd_target i386netbsd_vec;
621extern const bfd_target i386os9k_vec;
622extern const bfd_target i386pe_vec;
623extern const bfd_target i386pei_vec;
624extern const bfd_target i860coff_vec;
625extern const bfd_target icoff_big_vec;
626extern const bfd_target icoff_little_vec;
627extern const bfd_target ieee_vec;
628extern const bfd_target m68k4knetbsd_vec;
629extern const bfd_target m68kaux_coff_vec;
630extern const bfd_target m68kcoff_vec;
631extern const bfd_target m68kcoffun_vec;
632extern const bfd_target m68klinux_vec;
633extern const bfd_target m68klynx_aout_vec;
634extern const bfd_target m68klynx_coff_vec;
635extern const bfd_target m68knetbsd_vec;
636extern const bfd_target m68ksysvcoff_vec;
637extern const bfd_target m88kbcs_vec;
638extern const bfd_target m88kmach3_vec;
639extern const bfd_target mcore_pe_big_vec;
640extern const bfd_target mcore_pe_little_vec;
641extern const bfd_target mcore_pei_big_vec;
642extern const bfd_target mcore_pei_little_vec;
643extern const bfd_target mipslpe_vec;
644extern const bfd_target mipslpei_vec;
645extern const bfd_target newsos3_vec;
646extern const bfd_target nlm32_alpha_vec;
647extern const bfd_target nlm32_i386_vec;
648extern const bfd_target nlm32_powerpc_vec;
649extern const bfd_target nlm32_sparc_vec;
650extern const bfd_target oasys_vec;
651extern const bfd_target or32coff_big_vec;
652extern const bfd_target pc532machaout_vec;
653extern const bfd_target pc532netbsd_vec;
654extern const bfd_target pdp11_aout_vec;
655extern const bfd_target pmac_xcoff_vec;
656extern const bfd_target ppcboot_vec;
657extern const bfd_target riscix_vec;
658extern const bfd_target rs6000coff64_vec;
659extern const bfd_target rs6000coff_vec;
660extern const bfd_target shcoff_small_vec;
661extern const bfd_target shcoff_vec;
662extern const bfd_target shlcoff_small_vec;
663extern const bfd_target shlcoff_vec;
664extern const bfd_target shlpe_vec;
665extern const bfd_target shlpei_vec;
666extern const bfd_target som_vec;
667extern const bfd_target sparccoff_vec;
668extern const bfd_target sparcle_aout_vec;
669extern const bfd_target sparclinux_vec;
670extern const bfd_target sparclynx_aout_vec;
671extern const bfd_target sparclynx_coff_vec;
672extern const bfd_target sparcnetbsd_vec;
673extern const bfd_target sunos_big_vec;
674extern const bfd_target tic30_aout_vec;
675extern const bfd_target tic30_coff_vec;
676extern const bfd_target tic54x_coff0_beh_vec;
677extern const bfd_target tic54x_coff0_vec;
678extern const bfd_target tic54x_coff1_beh_vec;
679extern const bfd_target tic54x_coff1_vec;
680extern const bfd_target tic54x_coff2_beh_vec;
681extern const bfd_target tic54x_coff2_vec;
682extern const bfd_target tic80coff_vec;
683extern const bfd_target vaxbsd_vec;
684extern const bfd_target vaxnetbsd_vec;
685extern const bfd_target vax1knetbsd_vec;
686extern const bfd_target versados_vec;
687extern const bfd_target vms_alpha_vec;
688extern const bfd_target vms_vax_vec;
689extern const bfd_target w65_vec;
690extern const bfd_target we32kcoff_vec;
691extern const bfd_target z8kcoff_vec;
692
693/* These are always included.  */
694extern const bfd_target srec_vec;
695extern const bfd_target symbolsrec_vec;
696extern const bfd_target tekhex_vec;
697extern const bfd_target binary_vec;
698extern const bfd_target ihex_vec;
699
700/* All of the xvecs for core files.  */
701extern const bfd_target aix386_core_vec;
702extern const bfd_target cisco_core_big_vec;
703extern const bfd_target cisco_core_little_vec;
704extern const bfd_target hppabsd_core_vec;
705extern const bfd_target hpux_core_vec;
706extern const bfd_target irix_core_vec;
707extern const bfd_target netbsd_core_vec;
708extern const bfd_target osf_core_vec;
709extern const bfd_target ptrace_core_vec;
710extern const bfd_target sco5_core_vec;
711extern const bfd_target trad_core_vec;
712
713static const bfd_target * const _bfd_target_vector[] = {
714
715#ifdef SELECT_VECS
716
717	SELECT_VECS,
718
719#else /* not SELECT_VECS */
720
721#ifdef DEFAULT_VECTOR
722	&DEFAULT_VECTOR,
723#endif
724	/* This list is alphabetized to make it easy to compare
725	   with other vector lists -- the decls above and
726	   the case statement in configure.in.
727	   Vectors that don't compile on all systems, or aren't finished,
728	   should have an entry here with #if 0 around it, to show that
729	   it wasn't omitted by mistake.  */
730	&a29kcoff_big_vec,
731	&a_out_adobe_vec,
732#ifdef BFD64
733	&aix5coff64_vec,
734#endif
735	&aout0_big_vec,
736#if 0
737	/* We have no way of distinguishing these from other a.out variants */
738	&aout_arm_big_vec,
739	&aout_arm_little_vec,
740	/* No one seems to use this.  */
741	&aout_mips_big_vec,
742#endif
743	&aout_mips_little_vec,
744#if 0
745	&apollocoff_vec,
746#endif
747	&arm_epoc_pe_big_vec,
748	&arm_epoc_pe_little_vec,
749	&arm_epoc_pei_big_vec,
750	&arm_epoc_pei_little_vec,
751	&armcoff_big_vec,
752	&armcoff_little_vec,
753	&armnetbsd_vec,
754	&armpe_big_vec,
755	&armpe_little_vec,
756	&armpei_big_vec,
757	&armpei_little_vec,
758	&b_out_vec_big_host,
759	&b_out_vec_little_host,
760	&bfd_efi_app_ia32_vec,
761#ifdef BFD64
762	&bfd_efi_app_ia64_vec,
763#endif
764	&bfd_elf32_avr_vec,
765
766	/* This, and other vectors, may not be used in any *.mt configuration.
767	   But that does not mean they are unnecessary.  If configured with
768	   --enable-targets=all, objdump or gdb should be able to examine
769	   the file even if we don't recognize the machine type.  */
770	&bfd_elf32_big_generic_vec,
771	&bfd_elf32_bigarc_vec,
772	&bfd_elf32_bigarm_oabi_vec,
773	&bfd_elf32_bigarm_vec,
774	&bfd_elf32_bigmips_vec,
775	&bfd_elf32_cris_vec,
776	&bfd_elf32_d10v_vec,
777	&bfd_elf32_d30v_vec,
778	&bfd_elf32_dlx_big_vec,
779	&bfd_elf32_fr30_vec,
780	&bfd_elf32_frv_vec,
781	&bfd_elf32_h8300_vec,
782	&bfd_elf32_hppa_linux_vec,
783	&bfd_elf32_hppa_vec,
784	&bfd_elf32_i370_vec,
785	&bfd_elf32_i386_freebsd_vec,
786	&bfd_elf32_i386_vec,
787	&bfd_elf32_i860_little_vec,
788	&bfd_elf32_i860_vec,
789	&bfd_elf32_i960_vec,
790#if 0
791	&bfd_elf32_ia64_big_vec,
792#endif
793	&bfd_elf32_ia64_hpux_big_vec,
794	&bfd_elf32_little_generic_vec,
795	&bfd_elf32_littlearc_vec,
796	&bfd_elf32_littlearm_oabi_vec,
797	&bfd_elf32_littlearm_vec,
798	&bfd_elf32_littlemips_vec,
799	&bfd_elf32_m32r_vec,
800	&bfd_elf32_m68hc11_vec,
801	&bfd_elf32_m68hc12_vec,
802	&bfd_elf32_m68k_vec,
803	&bfd_elf32_m88k_vec,
804	&bfd_elf32_mcore_big_vec,
805	&bfd_elf32_mcore_little_vec,
806	&bfd_elf32_mn10200_vec,
807	&bfd_elf32_mn10300_vec,
808	&bfd_elf32_openrisc_vec,
809	&bfd_elf32_or32_big_vec,
810	&bfd_elf32_pj_vec,
811	&bfd_elf32_pjl_vec,
812	&bfd_elf32_powerpc_vec,
813	&bfd_elf32_powerpcle_vec,
814	&bfd_elf32_s390_vec,
815        &bfd_elf32_sh_vec,
816        &bfd_elf32_shblin_vec,
817        &bfd_elf32_shl_vec,
818        &bfd_elf32_shlin_vec,
819	&bfd_elf32_shlnbsd_vec,
820	&bfd_elf32_shnbsd_vec,
821#ifdef BFD64
822	&bfd_elf32_sh64_vec,
823	&bfd_elf32_sh64l_vec,
824	&bfd_elf32_sh64lnbsd_vec,
825	&bfd_elf32_sh64nbsd_vec,
826#endif
827	&bfd_elf32_sparc_vec,
828	&bfd_elf32_tradbigmips_vec,
829	&bfd_elf32_tradlittlemips_vec,
830	&bfd_elf32_us_cris_vec,
831	&bfd_elf32_v850_vec,
832	&bfd_elf32_vax_vec,
833	&bfd_elf32_xstormy16_vec,
834#ifdef BFD64
835	&bfd_elf64_alpha_freebsd_vec,
836	&bfd_elf64_alpha_vec,
837	&bfd_elf64_big_generic_vec,
838	&bfd_elf64_bigmips_vec,
839	&bfd_elf64_hppa_linux_vec,
840	&bfd_elf64_hppa_vec,
841	&bfd_elf64_ia64_aix_big_vec,
842	&bfd_elf64_ia64_aix_little_vec,
843	&bfd_elf64_ia64_big_vec,
844	&bfd_elf64_ia64_hpux_big_vec,
845	&bfd_elf64_ia64_little_vec,
846	&bfd_elf64_little_generic_vec,
847	&bfd_elf64_littlemips_vec,
848	&bfd_elf64_mmix_vec,
849	&bfd_elf64_powerpc_vec,
850	&bfd_elf64_powerpcle_vec,
851	&bfd_elf64_s390_vec,
852	&bfd_elf64_sh64_vec,
853	&bfd_elf64_sh64l_vec,
854	&bfd_elf64_sh64lnbsd_vec,
855	&bfd_elf64_sh64nbsd_vec,
856#if 0
857	&bfd_elf64_sparc_vec,
858#endif
859	&bfd_elf64_tradbigmips_vec,
860	&bfd_elf64_tradlittlemips_vec,
861	&bfd_elf64_x86_64_vec,
862	&bfd_mmo_vec,
863#endif
864	&bfd_powerpc_pe_vec,
865	&bfd_powerpc_pei_vec,
866	&bfd_powerpcle_pe_vec,
867	&bfd_powerpcle_pei_vec,
868	&cris_aout_vec,
869#ifdef BFD64
870	&demo_64_vec,	/* Only compiled if host has long-long support */
871#endif
872	&ecoff_big_vec,
873	&ecoff_biglittle_vec,
874	&ecoff_little_vec,
875#ifdef BFD64
876	&ecoffalpha_little_vec,
877#endif
878	&go32coff_vec,
879	&go32stubbedcoff_vec,
880	&h8300coff_vec,
881	&h8500coff_vec,
882#if 0
883	/* Since a.out files lack decent magic numbers, no way to recognize
884	   which kind of a.out file it is.  */
885	&host_aout_vec,
886	/* Clashes with sunos_big_vec magic no.  */
887	&hp300bsd_vec,
888#endif
889	&hp300hpux_vec,
890	&i386aout_vec,
891	&i386bsd_vec,
892	&i386coff_vec,
893#if 0
894	&i386dynix_vec,
895#endif
896	&i386freebsd_vec,
897#if 0
898	/* Since a.out files lack decent magic numbers, no way to recognize
899	   which kind of a.out file it is.  */
900	&i386linux_vec,
901#endif
902	&i386lynx_aout_vec,
903	&i386lynx_coff_vec,
904#if 0
905	/* No distinguishing features for Mach 3 executables.  */
906	&i386mach3_vec,
907#endif
908	&i386msdos_vec,
909	&i386netbsd_vec,
910	&i386os9k_vec,
911	&i386pe_vec,
912	&i386pei_vec,
913	&i860coff_vec,
914	&icoff_big_vec,
915	&icoff_little_vec,
916	&ieee_vec,
917#if 0
918	&m68k4knetbsd_vec,
919	&m68kaux_coff_vec,
920#endif
921	&m68kcoff_vec,
922	&m68kcoffun_vec,
923#if 0
924	/* Since a.out files lack decent magic numbers, no way to recognize
925	   which kind of a.out file it is.  */
926	&m68klinux_vec,
927#endif
928	&m68klynx_aout_vec,
929	&m68klynx_coff_vec,
930	&m68knetbsd_vec,
931	&m68ksysvcoff_vec,
932	&m88kbcs_vec,
933	&m88kmach3_vec,
934	&mcore_pe_big_vec,
935	&mcore_pe_little_vec,
936	&mcore_pei_big_vec,
937	&mcore_pei_little_vec,
938	&mipslpe_vec,
939	&mipslpei_vec,
940	&newsos3_vec,
941#ifdef BFD64
942	&nlm32_alpha_vec,
943#endif
944	&nlm32_i386_vec,
945	&nlm32_powerpc_vec,
946	&nlm32_sparc_vec,
947#if 0
948	/* We have no oasys tools anymore, so we can't test any of this
949	   anymore. If you want to test the stuff yourself, go ahead...
950	   steve@cygnus.com
951	   Worse, since there is no magic number for archives, there
952	   can be annoying target mis-matches.  */
953	&oasys_vec,
954#endif
955	/* Entry for the OpenRISC family.  */
956	&or32coff_big_vec,
957
958	&pc532machaout_vec,
959	&pc532netbsd_vec,
960	&pdp11_aout_vec,
961#if 0
962	/* This has the same magic number as RS/6000.  */
963	&pmac_xcoff_vec,
964#endif
965	&ppcboot_vec,
966#if 0
967	/* We have no way of distinguishing these from other a.out variants */
968	&riscix_vec,
969#endif
970#ifdef BFD64
971	&rs6000coff64_vec,
972#endif
973	&rs6000coff_vec,
974	&shcoff_small_vec,
975	&shcoff_vec,
976	&shlcoff_small_vec,
977	&shlcoff_vec,
978	&shlpe_vec,
979	&shlpei_vec,
980#if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF)
981	&som_vec,
982#endif
983	&sparccoff_vec,
984	&sparcle_aout_vec,
985	&sparclinux_vec,
986	&sparclynx_aout_vec,
987	&sparclynx_coff_vec,
988	&sparcnetbsd_vec,
989	&sunos_big_vec,
990	&tic30_aout_vec,
991	&tic30_coff_vec,
992	&tic54x_coff0_beh_vec,
993	&tic54x_coff0_vec,
994	&tic54x_coff1_beh_vec,
995	&tic54x_coff1_vec,
996	&tic54x_coff2_beh_vec,
997	&tic54x_coff2_vec,
998	&tic80coff_vec,
999	&vaxbsd_vec,
1000	&vaxnetbsd_vec,
1001	&vax1knetbsd_vec,
1002	&versados_vec,
1003#ifdef BFD64
1004	&vms_alpha_vec,
1005#endif
1006	&vms_vax_vec,
1007	&w65_vec,
1008	&we32kcoff_vec,
1009	&z8kcoff_vec,
1010#endif /* not SELECT_VECS */
1011
1012/* Always support S-records, for convenience.  */
1013	&srec_vec,
1014	&symbolsrec_vec,
1015/* And tekhex */
1016	&tekhex_vec,
1017/* Likewise for binary output.  */
1018	&binary_vec,
1019/* Likewise for ihex.  */
1020	&ihex_vec,
1021
1022/* Add any required traditional-core-file-handler.  */
1023
1024#ifdef AIX386_CORE
1025	&aix386_core_vec,
1026#endif
1027#if 0
1028	/* We don't include cisco_core_*_vec.  Although it has a magic number,
1029	   the magic number isn't at the beginning of the file, and thus
1030	   might spuriously match other kinds of files.  */
1031	&cisco_core_big_vec,
1032	&cisco_core_little_vec,
1033#endif
1034#ifdef HPPABSD_CORE
1035	&hppabsd_core_vec,
1036#endif
1037#ifdef HPUX_CORE
1038	&hpux_core_vec,
1039#endif
1040#ifdef IRIX_CORE
1041	&irix_core_vec,
1042#endif
1043#ifdef NETBSD_CORE
1044	&netbsd_core_vec,
1045#endif
1046#ifdef OSF_CORE
1047	&osf_core_vec,
1048#endif
1049#ifdef PTRACE_CORE
1050	&ptrace_core_vec,
1051#endif
1052#ifdef SCO5_CORE
1053	&sco5_core_vec,
1054#endif
1055#ifdef TRAD_CORE
1056	&trad_core_vec,
1057#endif
1058
1059	NULL /* end of list marker */
1060};
1061const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1062
1063/* bfd_default_vector[0] contains either the address of the default vector,
1064   if there is one, or zero if there isn't.  */
1065
1066const bfd_target *bfd_default_vector[] = {
1067#ifdef DEFAULT_VECTOR
1068	&DEFAULT_VECTOR,
1069#endif
1070	NULL
1071};
1072
1073/* When there is an ambiguous match, bfd_check_format_matches puts the
1074   names of the matching targets in an array.  This variable is the maximum
1075   number of entries that the array could possibly need.  */
1076const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1077
1078/* This array maps configuration triplets onto BFD vectors.  */
1079
1080struct targmatch
1081{
1082  /* The configuration triplet.  */
1083  const char *triplet;
1084  /* The BFD vector.  If this is NULL, then the vector is found by
1085     searching forward for the next structure with a non NULL vector
1086     field.  */
1087  const bfd_target *vector;
1088};
1089
1090/* targmatch.h is built by Makefile out of config.bfd.  */
1091static const struct targmatch bfd_target_match[] = {
1092#include "targmatch.h"
1093  { NULL, NULL }
1094};
1095
1096static const bfd_target *find_target PARAMS ((const char *));
1097
1098/* Find a target vector, given a name or configuration triplet.  */
1099
1100static const bfd_target *
1101find_target (name)
1102     const char *name;
1103{
1104  const bfd_target * const *target;
1105  const struct targmatch *match;
1106
1107  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1108    if (strcmp (name, (*target)->name) == 0)
1109      return *target;
1110
1111  /* If we couldn't match on the exact name, try matching on the
1112     configuration triplet.  FIXME: We should run the triplet through
1113     config.sub first, but that is hard.  */
1114  for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1115    {
1116      if (fnmatch (match->triplet, name, 0) == 0)
1117	{
1118	  while (match->vector == NULL)
1119	    ++match;
1120	  return match->vector;
1121	  break;
1122	}
1123    }
1124
1125  bfd_set_error (bfd_error_invalid_target);
1126  return NULL;
1127}
1128
1129/*
1130FUNCTION
1131	bfd_set_default_target
1132
1133SYNOPSIS
1134	boolean bfd_set_default_target (const char *name);
1135
1136DESCRIPTION
1137	Set the default target vector to use when recognizing a BFD.
1138	This takes the name of the target, which may be a BFD target
1139	name or a configuration triplet.
1140*/
1141
1142boolean
1143bfd_set_default_target (name)
1144     const char *name;
1145{
1146  const bfd_target *target;
1147
1148  if (bfd_default_vector[0] != NULL
1149      && strcmp (name, bfd_default_vector[0]->name) == 0)
1150    return true;
1151
1152  target = find_target (name);
1153  if (target == NULL)
1154    return false;
1155
1156  bfd_default_vector[0] = target;
1157  return true;
1158}
1159
1160/*
1161FUNCTION
1162	bfd_find_target
1163
1164SYNOPSIS
1165	const bfd_target *bfd_find_target(const char *target_name, bfd *abfd);
1166
1167DESCRIPTION
1168	Return a pointer to the transfer vector for the object target
1169	named @var{target_name}.  If @var{target_name} is <<NULL>>, choose the
1170	one in the environment variable <<GNUTARGET>>; if that is null or not
1171	defined, then choose the first entry in the target list.
1172	Passing in the string "default" or setting the environment
1173	variable to "default" will cause the first entry in the target
1174	list to be returned, and "target_defaulted" will be set in the
1175	BFD.  This causes <<bfd_check_format>> to loop over all the
1176	targets to find the one that matches the file being read.
1177*/
1178
1179const bfd_target *
1180bfd_find_target (target_name, abfd)
1181     const char *target_name;
1182     bfd *abfd;
1183{
1184  const char *targname;
1185  const bfd_target *target;
1186
1187  if (target_name != NULL)
1188    targname = target_name;
1189  else
1190    targname = getenv ("GNUTARGET");
1191
1192  /* This is safe; the vector cannot be null */
1193  if (targname == NULL || strcmp (targname, "default") == 0)
1194    {
1195      abfd->target_defaulted = true;
1196      if (bfd_default_vector[0] != NULL)
1197	abfd->xvec = bfd_default_vector[0];
1198      else
1199	abfd->xvec = bfd_target_vector[0];
1200      return abfd->xvec;
1201    }
1202
1203  abfd->target_defaulted = false;
1204
1205  target = find_target (targname);
1206  if (target == NULL)
1207    return NULL;
1208
1209  abfd->xvec = target;
1210  return target;
1211}
1212
1213/*
1214FUNCTION
1215	bfd_target_list
1216
1217SYNOPSIS
1218	const char **bfd_target_list(void);
1219
1220DESCRIPTION
1221	Return a freshly malloced NULL-terminated
1222	vector of the names of all the valid BFD targets. Do not
1223	modify the names.
1224
1225*/
1226
1227const char **
1228bfd_target_list ()
1229{
1230  int vec_length= 0;
1231  bfd_size_type amt;
1232#if defined (HOST_HPPAHPUX) && ! defined (__STDC__)
1233  /* The native compiler on the HP9000/700 has a bug which causes it
1234     to loop endlessly when compiling this file.  This avoids it.  */
1235  volatile
1236#endif
1237  const bfd_target * const *target;
1238  const  char **name_list, **name_ptr;
1239
1240  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1241    vec_length++;
1242
1243  amt = (vec_length + 1) * sizeof (char **);
1244  name_ptr = name_list = (const char **) bfd_zmalloc (amt);
1245
1246  if (name_list == NULL)
1247    return NULL;
1248
1249  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1250    if (target == &bfd_target_vector[0]
1251	|| *target != bfd_target_vector[0])
1252      *name_ptr++ = (*target)->name;
1253
1254  return name_list;
1255}
1256
1257/*
1258FUNCTION
1259	bfd_seach_for_target
1260
1261SYNOPSIS
1262	const bfd_target * bfd_search_for_target (int (* search_func) (const bfd_target *, void *), void *);
1263
1264DESCRIPTION
1265	Return a pointer to the first transfer vector in the list of
1266	transfer vectors maintained by BFD that produces a non-zero
1267	result when passed to the function @var{search_func}.  The
1268	parameter @var{data} is passed, unexamined, to the search
1269	function.
1270*/
1271
1272const bfd_target *
1273bfd_search_for_target (search_func, data)
1274     int (* search_func) PARAMS ((const bfd_target * target, void * data));
1275     void * data;
1276{
1277  const bfd_target * const * target;
1278
1279  for (target = bfd_target_vector; * target != NULL; target ++)
1280    if (search_func (* target, data))
1281      return * target;
1282
1283  return NULL;
1284}
1285