targets.c revision 91041
1214571Sdim/* Generic target-file-type support for the BFD library.
2214571Sdim   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3214571Sdim   2000, 2001, 2002
4214571Sdim   Free Software Foundation, Inc.
5214571Sdim   Written by Cygnus Support.
6214571Sdim
7214571SdimThis file is part of BFD, the Binary File Descriptor library.
8214571Sdim
9214571SdimThis program is free software; you can redistribute it and/or modify
10214571Sdimit under the terms of the GNU General Public License as published by
11214571Sdimthe Free Software Foundation; either version 2 of the License, or
12214571Sdim(at your option) any later version.
13214571Sdim
14214571SdimThis program is distributed in the hope that it will be useful,
15214571Sdimbut WITHOUT ANY WARRANTY; without even the implied warranty of
16214571SdimMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17214571SdimGNU General Public License for more details.
18214571Sdim
19214571SdimYou should have received a copy of the GNU General Public License
20214571Sdimalong with this program; if not, write to the Free Software
21214571SdimFoundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
22214571Sdim
23214571Sdim#include "bfd.h"
24214571Sdim#include "sysdep.h"
25214571Sdim#include "libbfd.h"
26214571Sdim#include "fnmatch.h"
27214571Sdim
28214571Sdim/*
29214571SdimSECTION
30214571Sdim	Targets
31214571Sdim
32214571SdimDESCRIPTION
33214571Sdim	Each port of BFD to a different machine requries the creation
34214571Sdim	of a target back end. All the back end provides to the root
35214571Sdim	part of BFD is a structure containing pointers to functions
36214571Sdim	which perform certain low level operations on files. BFD
37214571Sdim	translates the applications's requests through a pointer into
38214571Sdim	calls to the back end routines.
39214571Sdim
40214571Sdim	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_add_symbols), \
398.CONCAT2 (NAME,_bfd_final_link), \
399.CONCAT2 (NAME,_bfd_link_split_section), \
400.CONCAT2 (NAME,_bfd_gc_sections), \
401.CONCAT2 (NAME,_bfd_merge_sections)
402.  int      (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
403.  bfd_byte *(*_bfd_get_relocated_section_contents)
404.    PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
405.             bfd_byte *, boolean, struct symbol_cache_entry **));
406.
407.  boolean  (*_bfd_relax_section)
408.    PARAMS ((bfd *, struct sec *, struct bfd_link_info *, boolean *));
409.
410.  {* Create a hash table for the linker.  Different backends store
411.     different information in this table.  *}
412.  struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
413.
414.  {* Add symbols from this object file into the hash table.  *}
415.  boolean  (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
416.
417.  {* Do a link based on the link_order structures attached to each
418.     section of the BFD.  *}
419.  boolean  (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
420.
421.  {* Should this section be split up into smaller pieces during linking.  *}
422.  boolean  (*_bfd_link_split_section) PARAMS ((bfd *, struct sec *));
423.
424.  {* Remove sections that are not referenced from the output.  *}
425.  boolean  (*_bfd_gc_sections) PARAMS ((bfd *, struct bfd_link_info *));
426.
427.  {* Attempt to merge SEC_MERGE sections.  *}
428.  boolean  (*_bfd_merge_sections) PARAMS ((bfd *, struct bfd_link_info *));
429.
430.  {* Routines to handle dynamic symbols and relocs.  *}
431.#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
432.CONCAT2 (NAME,_get_dynamic_symtab_upper_bound), \
433.CONCAT2 (NAME,_canonicalize_dynamic_symtab), \
434.CONCAT2 (NAME,_get_dynamic_reloc_upper_bound), \
435.CONCAT2 (NAME,_canonicalize_dynamic_reloc)
436.  {* Get the amount of memory required to hold the dynamic symbols.  *}
437.  long     (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
438.  {* Read in the dynamic symbols.  *}
439.  long     (*_bfd_canonicalize_dynamic_symtab)
440.    PARAMS ((bfd *, struct symbol_cache_entry **));
441.  {* Get the amount of memory required to hold the dynamic relocs.  *}
442.  long     (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
443.  {* Read in the dynamic relocs.  *}
444.  long     (*_bfd_canonicalize_dynamic_reloc)
445.    PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
446.
447
448A pointer to an alternative bfd_target in case the current one is not
449satisfactory.  This can happen when the target cpu supports both big
450and little endian code, and target chosen by the linker has the wrong
451endianness.  The function open_output() in ld/ldlang.c uses this field
452to find an alternative output format that is suitable.
453
454.  {* Opposite endian version of this target.  *}
455.  const struct bfd_target * alternative_target;
456.
457
458.  {* Data for use by back-end routines, which isn't
459.     generic enough to belong in this structure.  *}
460.  PTR backend_data;
461.
462.} bfd_target;
463.
464*/
465
466/* All known xvecs (even those that don't compile on all systems).
467   Alphabetized for easy reference.
468   They are listed a second time below, since
469   we can't intermix extern's and initializers.  */
470extern const bfd_target a29kcoff_big_vec;
471extern const bfd_target a_out_adobe_vec;
472extern const bfd_target aout0_big_vec;
473extern const bfd_target aout_arm_big_vec;
474extern const bfd_target aout_arm_little_vec;
475extern const bfd_target aout_mips_big_vec;
476extern const bfd_target aout_mips_little_vec;
477extern const bfd_target apollocoff_vec;
478extern const bfd_target arm_epoc_pe_big_vec;
479extern const bfd_target arm_epoc_pe_little_vec;
480extern const bfd_target arm_epoc_pei_big_vec;
481extern const bfd_target arm_epoc_pei_little_vec;
482extern const bfd_target armcoff_big_vec;
483extern const bfd_target armcoff_little_vec;
484extern const bfd_target armnetbsd_vec;
485extern const bfd_target armpe_big_vec;
486extern const bfd_target armpe_little_vec;
487extern const bfd_target armpei_big_vec;
488extern const bfd_target armpei_little_vec;
489extern const bfd_target b_out_vec_big_host;
490extern const bfd_target b_out_vec_little_host;
491extern const bfd_target bfd_efi_app_ia32_vec;
492extern const bfd_target bfd_efi_app_ia64_vec;
493extern const bfd_target bfd_elf32_avr_vec;
494extern const bfd_target bfd_elf32_big_generic_vec;
495extern const bfd_target bfd_elf32_bigarc_vec;
496extern const bfd_target bfd_elf32_bigarm_oabi_vec;
497extern const bfd_target bfd_elf32_bigarm_vec;
498extern const bfd_target bfd_elf32_bigmips_vec;
499extern const bfd_target bfd_elf32_cris_vec;
500extern const bfd_target bfd_elf32_d10v_vec;
501extern const bfd_target bfd_elf32_d30v_vec;
502extern const bfd_target bfd_elf32_fr30_vec;
503extern const bfd_target bfd_elf32_h8300_vec;
504extern const bfd_target bfd_elf32_hppa_linux_vec;
505extern const bfd_target bfd_elf32_hppa_vec;
506extern const bfd_target bfd_elf32_i370_vec;
507extern const bfd_target bfd_elf32_i386_vec;
508extern const bfd_target bfd_elf32_i860_little_vec;
509extern const bfd_target bfd_elf32_i860_vec;
510extern const bfd_target bfd_elf32_i960_vec;
511extern const bfd_target bfd_elf32_ia64_big_vec;
512extern const bfd_target bfd_elf32_ia64_hpux_big_vec;
513extern const bfd_target bfd_elf32_little_generic_vec;
514extern const bfd_target bfd_elf32_littlearc_vec;
515extern const bfd_target bfd_elf32_littlearm_oabi_vec;
516extern const bfd_target bfd_elf32_littlearm_vec;
517extern const bfd_target bfd_elf32_littlemips_vec;
518extern const bfd_target bfd_elf32_m32r_vec;
519extern const bfd_target bfd_elf32_m68hc11_vec;
520extern const bfd_target bfd_elf32_m68hc12_vec;
521extern const bfd_target bfd_elf32_m68k_vec;
522extern const bfd_target bfd_elf32_m88k_vec;
523extern const bfd_target bfd_elf32_mcore_big_vec;
524extern const bfd_target bfd_elf32_mcore_little_vec;
525extern const bfd_target bfd_elf32_mn10200_vec;
526extern const bfd_target bfd_elf32_mn10300_vec;
527extern const bfd_target bfd_elf32_openrisc_vec;
528extern const bfd_target bfd_elf32_or32_big_vec;
529extern const bfd_target bfd_elf32_pj_vec;
530extern const bfd_target bfd_elf32_pjl_vec;
531extern const bfd_target bfd_elf32_powerpc_vec;
532extern const bfd_target bfd_elf32_powerpcle_vec;
533extern const bfd_target bfd_elf32_s390_vec;
534extern const bfd_target bfd_elf32_sh_vec;
535extern const bfd_target bfd_elf32_shblin_vec;
536extern const bfd_target bfd_elf32_shl_vec;
537extern const bfd_target bfd_elf32_shlin_vec;
538extern const bfd_target bfd_elf32_shlnbsd_vec;
539extern const bfd_target bfd_elf32_shnbsd_vec;
540extern const bfd_target bfd_elf32_sparc_vec;
541extern const bfd_target bfd_elf32_tradbigmips_vec;
542extern const bfd_target bfd_elf32_tradlittlemips_vec;
543extern const bfd_target bfd_elf32_us_cris_vec;
544extern const bfd_target bfd_elf32_v850_vec;
545extern const bfd_target bfd_elf32_xstormy16_vec;
546extern const bfd_target bfd_elf64_alpha_vec;
547extern const bfd_target bfd_elf64_big_generic_vec;
548extern const bfd_target bfd_elf64_bigmips_vec;
549extern const bfd_target bfd_elf64_hppa_linux_vec;
550extern const bfd_target bfd_elf64_hppa_vec;
551extern const bfd_target bfd_elf64_ia64_aix_big_vec;
552extern const bfd_target bfd_elf64_ia64_aix_little_vec;
553extern const bfd_target bfd_elf64_ia64_big_vec;
554extern const bfd_target bfd_elf64_ia64_hpux_big_vec;
555extern const bfd_target bfd_elf64_ia64_little_vec;
556extern const bfd_target bfd_elf64_little_generic_vec;
557extern const bfd_target bfd_elf64_littlemips_vec;
558extern const bfd_target bfd_elf64_mmix_vec;
559extern const bfd_target bfd_elf64_powerpc_vec;
560extern const bfd_target bfd_elf64_powerpcle_vec;
561extern const bfd_target bfd_elf64_s390_vec;
562extern const bfd_target bfd_elf64_sparc_vec;
563extern const bfd_target bfd_elf64_tradbigmips_vec;
564extern const bfd_target bfd_elf64_tradlittlemips_vec;
565extern const bfd_target bfd_elf64_x86_64_vec;
566extern const bfd_target bfd_mmo_vec;
567extern const bfd_target bfd_powerpc_pe_vec;
568extern const bfd_target bfd_powerpc_pei_vec;
569extern const bfd_target bfd_powerpcle_pe_vec;
570extern const bfd_target bfd_powerpcle_pei_vec;
571extern const bfd_target cris_aout_vec;
572extern const bfd_target demo_64_vec;
573extern const bfd_target ecoff_big_vec;
574extern const bfd_target ecoff_biglittle_vec;
575extern const bfd_target ecoff_little_vec;
576extern const bfd_target ecoffalpha_little_vec;
577extern const bfd_target go32coff_vec;
578extern const bfd_target go32stubbedcoff_vec;
579extern const bfd_target h8300coff_vec;
580extern const bfd_target h8500coff_vec;
581extern const bfd_target host_aout_vec;
582extern const bfd_target hp300bsd_vec;
583extern const bfd_target hp300hpux_vec;
584extern const bfd_target i386aout_vec;
585extern const bfd_target i386bsd_vec;
586extern const bfd_target i386coff_vec;
587extern const bfd_target i386dynix_vec;
588extern const bfd_target i386freebsd_vec;
589extern const bfd_target i386linux_vec;
590extern const bfd_target i386lynx_aout_vec;
591extern const bfd_target i386lynx_coff_vec;
592extern const bfd_target i386mach3_vec;
593extern const bfd_target i386msdos_vec;
594extern const bfd_target i386netbsd_vec;
595extern const bfd_target i386os9k_vec;
596extern const bfd_target i386pe_vec;
597extern const bfd_target i386pei_vec;
598extern const bfd_target i860coff_vec;
599extern const bfd_target icoff_big_vec;
600extern const bfd_target icoff_little_vec;
601extern const bfd_target ieee_vec;
602extern const bfd_target m68k4knetbsd_vec;
603extern const bfd_target m68kaux_coff_vec;
604extern const bfd_target m68kcoff_vec;
605extern const bfd_target m68kcoffun_vec;
606extern const bfd_target m68klinux_vec;
607extern const bfd_target m68klynx_aout_vec;
608extern const bfd_target m68klynx_coff_vec;
609extern const bfd_target m68knetbsd_vec;
610extern const bfd_target m68ksysvcoff_vec;
611extern const bfd_target m88kbcs_vec;
612extern const bfd_target m88kmach3_vec;
613extern const bfd_target mcore_pe_big_vec;
614extern const bfd_target mcore_pe_little_vec;
615extern const bfd_target mcore_pei_big_vec;
616extern const bfd_target mcore_pei_little_vec;
617extern const bfd_target mipslpe_vec;
618extern const bfd_target mipslpei_vec;
619extern const bfd_target newsos3_vec;
620extern const bfd_target nlm32_alpha_vec;
621extern const bfd_target nlm32_i386_vec;
622extern const bfd_target nlm32_powerpc_vec;
623extern const bfd_target nlm32_sparc_vec;
624extern const bfd_target oasys_vec;
625extern const bfd_target or32coff_big_vec;
626extern const bfd_target pc532machaout_vec;
627extern const bfd_target pc532netbsd_vec;
628extern const bfd_target pdp11_aout_vec;
629extern const bfd_target pmac_xcoff_vec;
630extern const bfd_target ppcboot_vec;
631extern const bfd_target riscix_vec;
632extern const bfd_target rs6000coff64_vec;
633extern const bfd_target rs6000coff_vec;
634extern const bfd_target shcoff_small_vec;
635extern const bfd_target shcoff_vec;
636extern const bfd_target shlcoff_small_vec;
637extern const bfd_target shlcoff_vec;
638extern const bfd_target shlpe_vec;
639extern const bfd_target shlpei_vec;
640extern const bfd_target som_vec;
641extern const bfd_target sparccoff_vec;
642extern const bfd_target sparcle_aout_vec;
643extern const bfd_target sparclinux_vec;
644extern const bfd_target sparclynx_aout_vec;
645extern const bfd_target sparclynx_coff_vec;
646extern const bfd_target sparcnetbsd_vec;
647extern const bfd_target sunos_big_vec;
648extern const bfd_target tic30_aout_vec;
649extern const bfd_target tic30_coff_vec;
650extern const bfd_target tic54x_coff0_beh_vec;
651extern const bfd_target tic54x_coff0_vec;
652extern const bfd_target tic54x_coff1_beh_vec;
653extern const bfd_target tic54x_coff1_vec;
654extern const bfd_target tic54x_coff2_beh_vec;
655extern const bfd_target tic54x_coff2_vec;
656extern const bfd_target tic80coff_vec;
657extern const bfd_target vaxnetbsd_vec;
658extern const bfd_target versados_vec;
659extern const bfd_target vms_alpha_vec;
660extern const bfd_target vms_vax_vec;
661extern const bfd_target w65_vec;
662extern const bfd_target we32kcoff_vec;
663extern const bfd_target z8kcoff_vec;
664
665/* These are always included.  */
666extern const bfd_target srec_vec;
667extern const bfd_target symbolsrec_vec;
668extern const bfd_target tekhex_vec;
669extern const bfd_target binary_vec;
670extern const bfd_target ihex_vec;
671
672/* All of the xvecs for core files.  */
673extern const bfd_target aix386_core_vec;
674extern const bfd_target cisco_core_big_vec;
675extern const bfd_target cisco_core_little_vec;
676extern const bfd_target hppabsd_core_vec;
677extern const bfd_target hpux_core_vec;
678extern const bfd_target irix_core_vec;
679extern const bfd_target netbsd_core_vec;
680extern const bfd_target osf_core_vec;
681extern const bfd_target ptrace_core_vec;
682extern const bfd_target sco5_core_vec;
683extern const bfd_target trad_core_vec;
684
685extern const bfd_target bfd_elf32_sh64_vec;
686extern const bfd_target bfd_elf32_sh64l_vec;
687extern const bfd_target bfd_elf64_sh64_vec;
688extern const bfd_target bfd_elf64_sh64l_vec;
689static const bfd_target * const _bfd_target_vector[] = {
690
691#ifdef SELECT_VECS
692
693	SELECT_VECS,
694
695#else /* not SELECT_VECS */
696
697#ifdef DEFAULT_VECTOR
698	&DEFAULT_VECTOR,
699#endif
700	/* This list is alphabetized to make it easy to compare
701	   with other vector lists -- the decls above and
702	   the case statement in configure.in.
703	   Vectors that don't compile on all systems, or aren't finished,
704	   should have an entry here with #if 0 around it, to show that
705	   it wasn't omitted by mistake.  */
706	&a29kcoff_big_vec,
707	&a_out_adobe_vec,
708	&aout0_big_vec,
709#if 0
710	/* We have no way of distinguishing these from other a.out variants */
711	&aout_arm_big_vec,
712	&aout_arm_little_vec,
713	/* No one seems to use this.  */
714	&aout_mips_big_vec,
715#endif
716	&aout_mips_little_vec,
717#if 0
718	&apollocoff_vec,
719#endif
720	&arm_epoc_pe_big_vec,
721	&arm_epoc_pe_little_vec,
722	&arm_epoc_pei_big_vec,
723	&arm_epoc_pei_little_vec,
724	&armcoff_big_vec,
725	&armcoff_little_vec,
726	&armnetbsd_vec,
727	&armpe_big_vec,
728	&armpe_little_vec,
729	&armpei_big_vec,
730	&armpei_little_vec,
731	&b_out_vec_big_host,
732	&b_out_vec_little_host,
733	&bfd_efi_app_ia32_vec,
734#ifdef BFD64
735	&bfd_efi_app_ia64_vec,
736#endif
737	&bfd_elf32_avr_vec,
738
739	/* This, and other vectors, may not be used in any *.mt configuration.
740	   But that does not mean they are unnecessary.  If configured with
741	   --enable-targets=all, objdump or gdb should be able to examine
742	   the file even if we don't recognize the machine type.  */
743	&bfd_elf32_big_generic_vec,
744	&bfd_elf32_bigarc_vec,
745	&bfd_elf32_bigarm_oabi_vec,
746	&bfd_elf32_bigarm_vec,
747	&bfd_elf32_bigmips_vec,
748	&bfd_elf32_cris_vec,
749	&bfd_elf32_d10v_vec,
750	&bfd_elf32_d30v_vec,
751	&bfd_elf32_fr30_vec,
752	&bfd_elf32_h8300_vec,
753	&bfd_elf32_hppa_linux_vec,
754	&bfd_elf32_hppa_vec,
755	&bfd_elf32_i370_vec,
756	&bfd_elf32_i386_vec,
757	&bfd_elf32_i860_little_vec,
758	&bfd_elf32_i860_vec,
759	&bfd_elf32_i960_vec,
760#if 0
761	&bfd_elf32_ia64_big_vec,
762#endif
763	&bfd_elf32_ia64_hpux_big_vec,
764	&bfd_elf32_little_generic_vec,
765	&bfd_elf32_littlearc_vec,
766	&bfd_elf32_littlearm_oabi_vec,
767	&bfd_elf32_littlearm_vec,
768	&bfd_elf32_littlemips_vec,
769	&bfd_elf32_m32r_vec,
770	&bfd_elf32_m68hc11_vec,
771	&bfd_elf32_m68hc12_vec,
772	&bfd_elf32_m68k_vec,
773	&bfd_elf32_m88k_vec,
774	&bfd_elf32_mcore_big_vec,
775	&bfd_elf32_mcore_little_vec,
776	&bfd_elf32_mn10200_vec,
777	&bfd_elf32_mn10300_vec,
778	&bfd_elf32_openrisc_vec,
779	&bfd_elf32_or32_big_vec,
780	&bfd_elf32_pj_vec,
781	&bfd_elf32_pjl_vec,
782	&bfd_elf32_powerpc_vec,
783	&bfd_elf32_powerpcle_vec,
784	&bfd_elf32_s390_vec,
785        &bfd_elf32_sh_vec,
786        &bfd_elf32_shblin_vec,
787        &bfd_elf32_shl_vec,
788        &bfd_elf32_shlin_vec,
789	&bfd_elf32_shlnbsd_vec,
790	&bfd_elf32_shnbsd_vec,
791	&bfd_elf32_sparc_vec,
792	&bfd_elf32_tradbigmips_vec,
793	&bfd_elf32_tradlittlemips_vec,
794	&bfd_elf32_us_cris_vec,
795	&bfd_elf32_v850_vec,
796	&bfd_elf32_xstormy16_vec,
797#ifdef BFD64
798	&bfd_elf64_alpha_vec,
799	&bfd_elf64_big_generic_vec,
800	&bfd_elf64_bigmips_vec,
801	&bfd_elf64_hppa_linux_vec,
802	&bfd_elf64_hppa_vec,
803	&bfd_elf64_ia64_aix_big_vec,
804	&bfd_elf64_ia64_aix_little_vec,
805	&bfd_elf64_ia64_big_vec,
806	&bfd_elf64_ia64_hpux_big_vec,
807	&bfd_elf64_ia64_little_vec,
808	&bfd_elf64_little_generic_vec,
809	&bfd_elf64_littlemips_vec,
810	&bfd_elf64_mmix_vec,
811	&bfd_elf64_powerpc_vec,
812	&bfd_elf64_powerpcle_vec,
813	&bfd_elf64_s390_vec,
814#if 0
815	&bfd_elf64_sparc_vec,
816#endif
817	&bfd_elf64_tradbigmips_vec,
818	&bfd_elf64_tradlittlemips_vec,
819	&bfd_elf64_x86_64_vec,
820	&bfd_mmo_vec,
821#endif
822	&bfd_powerpc_pe_vec,
823	&bfd_powerpc_pei_vec,
824	&bfd_powerpcle_pe_vec,
825	&bfd_powerpcle_pei_vec,
826	&cris_aout_vec,
827#ifdef BFD64
828	&demo_64_vec,	/* Only compiled if host has long-long support */
829#endif
830	&ecoff_big_vec,
831	&ecoff_biglittle_vec,
832	&ecoff_little_vec,
833#ifdef BFD64
834	&ecoffalpha_little_vec,
835#endif
836	&go32coff_vec,
837	&go32stubbedcoff_vec,
838	&h8300coff_vec,
839	&h8500coff_vec,
840#if 0
841	/* Since a.out files lack decent magic numbers, no way to recognize
842	   which kind of a.out file it is.  */
843	&host_aout_vec,
844	/* Clashes with sunos_big_vec magic no.  */
845	&hp300bsd_vec,
846#endif
847	&hp300hpux_vec,
848	&i386aout_vec,
849	&i386bsd_vec,
850	&i386coff_vec,
851#if 0
852	&i386dynix_vec,
853#endif
854	&i386freebsd_vec,
855#if 0
856	/* Since a.out files lack decent magic numbers, no way to recognize
857	   which kind of a.out file it is.  */
858	&i386linux_vec,
859#endif
860	&i386lynx_aout_vec,
861	&i386lynx_coff_vec,
862#if 0
863	/* No distinguishing features for Mach 3 executables.  */
864	&i386mach3_vec,
865#endif
866	&i386msdos_vec,
867	&i386netbsd_vec,
868	&i386os9k_vec,
869	&i386pe_vec,
870	&i386pei_vec,
871	&i860coff_vec,
872	&icoff_big_vec,
873	&icoff_little_vec,
874	&ieee_vec,
875#if 0
876	&m68k4knetbsd_vec,
877	&m68kaux_coff_vec,
878#endif
879	&m68kcoff_vec,
880	&m68kcoffun_vec,
881#if 0
882	/* Since a.out files lack decent magic numbers, no way to recognize
883	   which kind of a.out file it is.  */
884	&m68klinux_vec,
885#endif
886	&m68klynx_aout_vec,
887	&m68klynx_coff_vec,
888	&m68knetbsd_vec,
889	&m68ksysvcoff_vec,
890	&m88kbcs_vec,
891	&m88kmach3_vec,
892	&mcore_pe_big_vec,
893	&mcore_pe_little_vec,
894	&mcore_pei_big_vec,
895	&mcore_pei_little_vec,
896	&mipslpe_vec,
897	&mipslpei_vec,
898	&newsos3_vec,
899#ifdef BFD64
900	&nlm32_alpha_vec,
901#endif
902	&nlm32_i386_vec,
903	&nlm32_powerpc_vec,
904	&nlm32_sparc_vec,
905#if 0
906	/* We have no oasys tools anymore, so we can't test any of this
907	   anymore. If you want to test the stuff yourself, go ahead...
908	   steve@cygnus.com
909	   Worse, since there is no magic number for archives, there
910	   can be annoying target mis-matches.  */
911	&oasys_vec,
912#endif
913	/* Entry for the OpenRISC family.  */
914	&or32coff_big_vec,
915
916	&pc532machaout_vec,
917	&pc532netbsd_vec,
918	&pdp11_aout_vec,
919#if 0
920	/* This has the same magic number as RS/6000.  */
921	&pmac_xcoff_vec,
922#endif
923	&ppcboot_vec,
924#if 0
925	/* We have no way of distinguishing these from other a.out variants */
926	&riscix_vec,
927#endif
928#ifdef BFD64
929	&rs6000coff64_vec,
930#endif
931	&rs6000coff_vec,
932	&shcoff_small_vec,
933	&shcoff_vec,
934	&shlcoff_small_vec,
935	&shlcoff_vec,
936	&shlpe_vec,
937	&shlpei_vec,
938#if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF)
939	&som_vec,
940#endif
941	&sparccoff_vec,
942	&sparcle_aout_vec,
943	&sparclinux_vec,
944	&sparclynx_aout_vec,
945	&sparclynx_coff_vec,
946	&sparcnetbsd_vec,
947	&sunos_big_vec,
948	&tic30_aout_vec,
949	&tic30_coff_vec,
950	&tic54x_coff0_beh_vec,
951	&tic54x_coff0_vec,
952	&tic54x_coff1_beh_vec,
953	&tic54x_coff1_vec,
954	&tic54x_coff2_beh_vec,
955	&tic54x_coff2_vec,
956	&tic80coff_vec,
957	&vaxnetbsd_vec,
958	&versados_vec,
959#ifdef BFD64
960	&vms_alpha_vec,
961#endif
962	&vms_vax_vec,
963	&w65_vec,
964	&we32kcoff_vec,
965	&z8kcoff_vec,
966#endif /* not SELECT_VECS */
967
968/* Always support S-records, for convenience.  */
969	&srec_vec,
970	&symbolsrec_vec,
971/* And tekhex */
972	&tekhex_vec,
973/* Likewise for binary output.  */
974	&binary_vec,
975/* Likewise for ihex.  */
976	&ihex_vec,
977
978/* Add any required traditional-core-file-handler.  */
979
980#ifdef AIX386_CORE
981	&aix386_core_vec,
982#endif
983#if 0
984	/* We don't include cisco_core_*_vec.  Although it has a magic number,
985	   the magic number isn't at the beginning of the file, and thus
986	   might spuriously match other kinds of files.  */
987	&cisco_core_big_vec,
988	&cisco_core_little_vec,
989#endif
990#ifdef HPPABSD_CORE
991	&hppabsd_core_vec,
992#endif
993#ifdef HPUX_CORE
994	&hpux_core_vec,
995#endif
996#ifdef IRIX_CORE
997	&irix_core_vec,
998#endif
999#ifdef NETBSD_CORE
1000	&netbsd_core_vec,
1001#endif
1002#ifdef OSF_CORE
1003	&osf_core_vec,
1004#endif
1005#ifdef PTRACE_CORE
1006	&ptrace_core_vec,
1007#endif
1008#ifdef SCO5_CORE
1009	&sco5_core_vec,
1010#endif
1011#ifdef TRAD_CORE
1012	&trad_core_vec,
1013#endif
1014
1015	NULL /* end of list marker */
1016};
1017const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1018
1019/* bfd_default_vector[0] contains either the address of the default vector,
1020   if there is one, or zero if there isn't.  */
1021
1022const bfd_target *bfd_default_vector[] = {
1023#ifdef DEFAULT_VECTOR
1024	&DEFAULT_VECTOR,
1025#endif
1026	NULL
1027};
1028
1029/* When there is an ambiguous match, bfd_check_format_matches puts the
1030   names of the matching targets in an array.  This variable is the maximum
1031   number of entries that the array could possibly need.  */
1032const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1033
1034/* This array maps configuration triplets onto BFD vectors.  */
1035
1036struct targmatch
1037{
1038  /* The configuration triplet.  */
1039  const char *triplet;
1040  /* The BFD vector.  If this is NULL, then the vector is found by
1041     searching forward for the next structure with a non NULL vector
1042     field.  */
1043  const bfd_target *vector;
1044};
1045
1046/* targmatch.h is built by Makefile out of config.bfd.  */
1047static const struct targmatch bfd_target_match[] = {
1048#include "targmatch.h"
1049  { NULL, NULL }
1050};
1051
1052static const bfd_target *find_target PARAMS ((const char *));
1053
1054/* Find a target vector, given a name or configuration triplet.  */
1055
1056static const bfd_target *
1057find_target (name)
1058     const char *name;
1059{
1060  const bfd_target * const *target;
1061  const struct targmatch *match;
1062
1063  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1064    if (strcmp (name, (*target)->name) == 0)
1065      return *target;
1066
1067  /* If we couldn't match on the exact name, try matching on the
1068     configuration triplet.  FIXME: We should run the triplet through
1069     config.sub first, but that is hard.  */
1070  for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1071    {
1072      if (fnmatch (match->triplet, name, 0) == 0)
1073	{
1074	  while (match->vector == NULL)
1075	    ++match;
1076	  return match->vector;
1077	  break;
1078	}
1079    }
1080
1081  bfd_set_error (bfd_error_invalid_target);
1082  return NULL;
1083}
1084
1085/*
1086FUNCTION
1087	bfd_set_default_target
1088
1089SYNOPSIS
1090	boolean bfd_set_default_target (const char *name);
1091
1092DESCRIPTION
1093	Set the default target vector to use when recognizing a BFD.
1094	This takes the name of the target, which may be a BFD target
1095	name or a configuration triplet.
1096*/
1097
1098boolean
1099bfd_set_default_target (name)
1100     const char *name;
1101{
1102  const bfd_target *target;
1103
1104  if (bfd_default_vector[0] != NULL
1105      && strcmp (name, bfd_default_vector[0]->name) == 0)
1106    return true;
1107
1108  target = find_target (name);
1109  if (target == NULL)
1110    return false;
1111
1112  bfd_default_vector[0] = target;
1113  return true;
1114}
1115
1116/*
1117FUNCTION
1118	bfd_find_target
1119
1120SYNOPSIS
1121	const bfd_target *bfd_find_target(const char *target_name, bfd *abfd);
1122
1123DESCRIPTION
1124	Return a pointer to the transfer vector for the object target
1125	named @var{target_name}.  If @var{target_name} is <<NULL>>, choose the
1126	one in the environment variable <<GNUTARGET>>; if that is null or not
1127	defined, then choose the first entry in the target list.
1128	Passing in the string "default" or setting the environment
1129	variable to "default" will cause the first entry in the target
1130	list to be returned, and "target_defaulted" will be set in the
1131	BFD.  This causes <<bfd_check_format>> to loop over all the
1132	targets to find the one that matches the file being read.
1133*/
1134
1135const bfd_target *
1136bfd_find_target (target_name, abfd)
1137     const char *target_name;
1138     bfd *abfd;
1139{
1140  const char *targname;
1141  const bfd_target *target;
1142
1143  if (target_name != NULL)
1144    targname = target_name;
1145  else
1146    targname = getenv ("GNUTARGET");
1147
1148  /* This is safe; the vector cannot be null */
1149  if (targname == NULL || strcmp (targname, "default") == 0)
1150    {
1151      abfd->target_defaulted = true;
1152      if (bfd_default_vector[0] != NULL)
1153	abfd->xvec = bfd_default_vector[0];
1154      else
1155	abfd->xvec = bfd_target_vector[0];
1156      return abfd->xvec;
1157    }
1158
1159  abfd->target_defaulted = false;
1160
1161  target = find_target (targname);
1162  if (target == NULL)
1163    return NULL;
1164
1165  abfd->xvec = target;
1166  return target;
1167}
1168
1169/*
1170FUNCTION
1171	bfd_target_list
1172
1173SYNOPSIS
1174	const char **bfd_target_list(void);
1175
1176DESCRIPTION
1177	Return a freshly malloced NULL-terminated
1178	vector of the names of all the valid BFD targets. Do not
1179	modify the names.
1180
1181*/
1182
1183const char **
1184bfd_target_list ()
1185{
1186  int vec_length= 0;
1187  bfd_size_type amt;
1188#if defined (HOST_HPPAHPUX) && ! defined (__STDC__)
1189  /* The native compiler on the HP9000/700 has a bug which causes it
1190     to loop endlessly when compiling this file.  This avoids it.  */
1191  volatile
1192#endif
1193  const bfd_target * const *target;
1194  const  char **name_list, **name_ptr;
1195
1196  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1197    vec_length++;
1198
1199  amt = (vec_length + 1) * sizeof (char **);
1200  name_ptr = name_list = (const char **) bfd_zmalloc (amt);
1201
1202  if (name_list == NULL)
1203    return NULL;
1204
1205  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1206    *(name_ptr++) = (*target)->name;
1207
1208  return name_list;
1209}
1210
1211/*
1212FUNCTION
1213	bfd_seach_for_target
1214
1215SYNOPSIS
1216	const bfd_target * bfd_search_for_target (int (* search_func) (const bfd_target *, void *), void *);
1217
1218DESCRIPTION
1219	Return a pointer to the first transfer vector in the list of
1220	transfer vectors maintained by BFD that produces a non-zero
1221	result when passed to the function @var{search_func}.  The
1222	parameter @var{data} is passed, unexamined, to the search
1223	function.
1224*/
1225
1226const bfd_target *
1227bfd_search_for_target (search_func, data)
1228     int (* search_func) PARAMS ((const bfd_target * target, void * data));
1229     void * data;
1230{
1231  const bfd_target * const * target;
1232
1233  for (target = bfd_target_vector; * target != NULL; target ++)
1234    if (search_func (* target, data))
1235      return * target;
1236
1237  return NULL;
1238}
1239