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[/] [or1k/] [tags/] [VER_5_3/] [gdb-5.3/] [bfd/] [targets.c] - Blame information for rev 1783

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1 1181 sfurman
/* 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
 
7
This file is part of BFD, the Binary File Descriptor library.
8
 
9
This program is free software; you can redistribute it and/or modify
10
it under the terms of the GNU General Public License as published by
11
the Free Software Foundation; either version 2 of the License, or
12
(at your option) any later version.
13
 
14
This program is distributed in the hope that it will be useful,
15
but WITHOUT ANY WARRANTY; without even the implied warranty of
16
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
GNU General Public License for more details.
18
 
19
You should have received a copy of the GNU General Public License
20
along with this program; if not, write to the Free Software
21
Foundation, 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
/*
29
SECTION
30
        Targets
31
 
32
DESCRIPTION
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
 
81
INODE
82
        bfd_target,  , Targets, Targets
83
DOCDD
84
SUBSECTION
85
        bfd_target
86
 
87
DESCRIPTION
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
.
235
The general target vector.  These vectors are initialized using the
236
BFD_JUMP_TABLE macros.
237
.
238
.  {* Generic entry points.  *}
239
Do not "beautify" the CONCAT* macro args.  Traditional C will not
240
remove whitespace added here, and thus will fail to concatenate
241
the 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
 
460
A pointer to an alternative bfd_target in case the current one is not
461
satisfactory.  This can happen when the target cpu supports both big
462
and little endian code, and target chosen by the linker has the wrong
463
endianness.  The function open_output() in ld/ldlang.c uses this field
464
to 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.  */
482
extern const bfd_target a29kcoff_big_vec;
483
extern const bfd_target a_out_adobe_vec;
484
extern const bfd_target aix5coff64_vec;
485
extern const bfd_target aout0_big_vec;
486
extern const bfd_target aout_arm_big_vec;
487
extern const bfd_target aout_arm_little_vec;
488
extern const bfd_target aout_mips_big_vec;
489
extern const bfd_target aout_mips_little_vec;
490
extern const bfd_target apollocoff_vec;
491
extern const bfd_target arm_epoc_pe_big_vec;
492
extern const bfd_target arm_epoc_pe_little_vec;
493
extern const bfd_target arm_epoc_pei_big_vec;
494
extern const bfd_target arm_epoc_pei_little_vec;
495
extern const bfd_target armcoff_big_vec;
496
extern const bfd_target armcoff_little_vec;
497
extern const bfd_target armnetbsd_vec;
498
extern const bfd_target armpe_big_vec;
499
extern const bfd_target armpe_little_vec;
500
extern const bfd_target armpei_big_vec;
501
extern const bfd_target armpei_little_vec;
502
extern const bfd_target b_out_vec_big_host;
503
extern const bfd_target b_out_vec_little_host;
504
extern const bfd_target bfd_efi_app_ia32_vec;
505
extern const bfd_target bfd_efi_app_ia64_vec;
506
extern const bfd_target bfd_elf32_avr_vec;
507
extern const bfd_target bfd_elf32_big_generic_vec;
508
extern const bfd_target bfd_elf32_bigarc_vec;
509
extern const bfd_target bfd_elf32_bigarm_oabi_vec;
510
extern const bfd_target bfd_elf32_bigarm_vec;
511
extern const bfd_target bfd_elf32_bigarmqnx_vec;
512
extern const bfd_target bfd_elf32_bigmips_vec;
513
extern const bfd_target bfd_elf32_cris_vec;
514
extern const bfd_target bfd_elf32_d10v_vec;
515
extern const bfd_target bfd_elf32_d30v_vec;
516
extern const bfd_target bfd_elf32_dlx_big_vec;
517
extern const bfd_target bfd_elf32_fr30_vec;
518
extern const bfd_target bfd_elf32_frv_vec;
519
extern const bfd_target bfd_elf32_h8300_vec;
520
extern const bfd_target bfd_elf32_hppa_linux_vec;
521
extern const bfd_target bfd_elf32_hppa_vec;
522
extern const bfd_target bfd_elf32_i370_vec;
523
extern const bfd_target bfd_elf32_i386_vec;
524
extern const bfd_target bfd_elf32_i386qnx_vec;
525
extern const bfd_target bfd_elf32_i860_little_vec;
526
extern const bfd_target bfd_elf32_i860_vec;
527
extern const bfd_target bfd_elf32_i960_vec;
528
extern const bfd_target bfd_elf32_ia64_big_vec;
529
extern const bfd_target bfd_elf32_ia64_hpux_big_vec;
530
extern const bfd_target bfd_elf32_ip2k_vec;
531
extern const bfd_target bfd_elf32_little_generic_vec;
532
extern const bfd_target bfd_elf32_littlearc_vec;
533
extern const bfd_target bfd_elf32_littlearm_oabi_vec;
534
extern const bfd_target bfd_elf32_littlearm_vec;
535
extern const bfd_target bfd_elf32_littlearmqnx_vec;
536
extern const bfd_target bfd_elf32_littlemips_vec;
537
extern const bfd_target bfd_elf32_m32r_vec;
538
extern const bfd_target bfd_elf32_m68hc11_vec;
539
extern const bfd_target bfd_elf32_m68hc12_vec;
540
extern const bfd_target bfd_elf32_m68k_vec;
541
extern const bfd_target bfd_elf32_m88k_vec;
542
extern const bfd_target bfd_elf32_mcore_big_vec;
543
extern const bfd_target bfd_elf32_mcore_little_vec;
544
extern const bfd_target bfd_elf32_mn10200_vec;
545
extern const bfd_target bfd_elf32_mn10300_vec;
546
extern const bfd_target bfd_elf32_nbigmips_vec;
547
extern const bfd_target bfd_elf32_nlittlemips_vec;
548
extern const bfd_target bfd_elf32_ntradbigmips_vec;
549
extern const bfd_target bfd_elf32_ntradlittlemips_vec;
550
extern const bfd_target bfd_elf32_openrisc_vec;
551
extern const bfd_target bfd_elf32_or32_big_vec;
552
extern const bfd_target bfd_elf32_pj_vec;
553
extern const bfd_target bfd_elf32_pjl_vec;
554
extern const bfd_target bfd_elf32_powerpc_vec;
555
extern const bfd_target bfd_elf32_powerpcle_vec;
556
extern const bfd_target bfd_elf32_powerpcleqnx_vec;
557
extern const bfd_target bfd_elf32_powerpcqnx_vec;
558
extern const bfd_target bfd_elf32_s390_vec;
559
extern const bfd_target bfd_elf32_sh64_vec;
560
extern const bfd_target bfd_elf32_sh64l_vec;
561
extern const bfd_target bfd_elf32_sh64lnbsd_vec;
562
extern const bfd_target bfd_elf32_sh64nbsd_vec;
563
extern const bfd_target bfd_elf32_sh_vec;
564
extern const bfd_target bfd_elf32_shblin_vec;
565
extern const bfd_target bfd_elf32_shl_vec;
566
extern const bfd_target bfd_elf32_shlin_vec;
567
extern const bfd_target bfd_elf32_shlnbsd_vec;
568
extern const bfd_target bfd_elf32_shlqnx_vec;
569
extern const bfd_target bfd_elf32_shnbsd_vec;
570
extern const bfd_target bfd_elf32_shqnx_vec;
571
extern const bfd_target bfd_elf32_sparc_vec;
572
extern const bfd_target bfd_elf32_tradbigmips_vec;
573
extern const bfd_target bfd_elf32_tradlittlemips_vec;
574
extern const bfd_target bfd_elf32_us_cris_vec;
575
extern const bfd_target bfd_elf32_v850_vec;
576
extern const bfd_target bfd_elf32_vax_vec;
577
extern const bfd_target bfd_elf32_xstormy16_vec;
578
extern const bfd_target bfd_elf64_alpha_vec;
579
extern const bfd_target bfd_elf64_big_generic_vec;
580
extern const bfd_target bfd_elf64_bigmips_vec;
581
extern const bfd_target bfd_elf64_hppa_linux_vec;
582
extern const bfd_target bfd_elf64_hppa_vec;
583
extern const bfd_target bfd_elf64_ia64_aix_big_vec;
584
extern const bfd_target bfd_elf64_ia64_aix_little_vec;
585
extern const bfd_target bfd_elf64_ia64_big_vec;
586
extern const bfd_target bfd_elf64_ia64_hpux_big_vec;
587
extern const bfd_target bfd_elf64_ia64_little_vec;
588
extern const bfd_target bfd_elf64_little_generic_vec;
589
extern const bfd_target bfd_elf64_littlemips_vec;
590
extern const bfd_target bfd_elf64_mmix_vec;
591
extern const bfd_target bfd_elf64_powerpc_vec;
592
extern const bfd_target bfd_elf64_powerpcle_vec;
593
extern const bfd_target bfd_elf64_s390_vec;
594
extern const bfd_target bfd_elf64_sh64_vec;
595
extern const bfd_target bfd_elf64_sh64l_vec;
596
extern const bfd_target bfd_elf64_sh64lnbsd_vec;
597
extern const bfd_target bfd_elf64_sh64nbsd_vec;
598
extern const bfd_target bfd_elf64_sparc_vec;
599
extern const bfd_target bfd_elf64_tradbigmips_vec;
600
extern const bfd_target bfd_elf64_tradlittlemips_vec;
601
extern const bfd_target bfd_elf64_x86_64_vec;
602
extern const bfd_target bfd_mmo_vec;
603
extern const bfd_target bfd_powerpc_pe_vec;
604
extern const bfd_target bfd_powerpc_pei_vec;
605
extern const bfd_target bfd_powerpcle_pe_vec;
606
extern const bfd_target bfd_powerpcle_pei_vec;
607
extern const bfd_target cris_aout_vec;
608
extern const bfd_target demo_64_vec;
609
extern const bfd_target ecoff_big_vec;
610
extern const bfd_target ecoff_biglittle_vec;
611
extern const bfd_target ecoff_little_vec;
612
extern const bfd_target ecoffalpha_little_vec;
613
extern const bfd_target go32coff_vec;
614
extern const bfd_target go32stubbedcoff_vec;
615
extern const bfd_target h8300coff_vec;
616
extern const bfd_target h8500coff_vec;
617
extern const bfd_target host_aout_vec;
618
extern const bfd_target hp300bsd_vec;
619
extern const bfd_target hp300hpux_vec;
620
extern const bfd_target i386aout_vec;
621
extern const bfd_target i386bsd_vec;
622
extern const bfd_target i386coff_vec;
623
extern const bfd_target i386dynix_vec;
624
extern const bfd_target i386freebsd_vec;
625
extern const bfd_target i386linux_vec;
626
extern const bfd_target i386lynx_aout_vec;
627
extern const bfd_target i386lynx_coff_vec;
628
extern const bfd_target i386mach3_vec;
629
extern const bfd_target i386msdos_vec;
630
extern const bfd_target i386netbsd_vec;
631
extern const bfd_target i386os9k_vec;
632
extern const bfd_target i386pe_vec;
633
extern const bfd_target i386pei_vec;
634
extern const bfd_target i860coff_vec;
635
extern const bfd_target icoff_big_vec;
636
extern const bfd_target icoff_little_vec;
637
extern const bfd_target ieee_vec;
638
extern const bfd_target m68k4knetbsd_vec;
639
extern const bfd_target m68kaux_coff_vec;
640
extern const bfd_target m68kcoff_vec;
641
extern const bfd_target m68kcoffun_vec;
642
extern const bfd_target m68klinux_vec;
643
extern const bfd_target m68klynx_aout_vec;
644
extern const bfd_target m68klynx_coff_vec;
645
extern const bfd_target m68knetbsd_vec;
646
extern const bfd_target m68ksysvcoff_vec;
647
extern const bfd_target m88kbcs_vec;
648
extern const bfd_target m88kmach3_vec;
649
extern const bfd_target mcore_pe_big_vec;
650
extern const bfd_target mcore_pe_little_vec;
651
extern const bfd_target mcore_pei_big_vec;
652
extern const bfd_target mcore_pei_little_vec;
653
extern const bfd_target mipslpe_vec;
654
extern const bfd_target mipslpei_vec;
655
extern const bfd_target newsos3_vec;
656
extern const bfd_target nlm32_alpha_vec;
657
extern const bfd_target nlm32_i386_vec;
658
extern const bfd_target nlm32_powerpc_vec;
659
extern const bfd_target nlm32_sparc_vec;
660
extern const bfd_target oasys_vec;
661
extern const bfd_target or32coff_big_vec;
662
extern const bfd_target pc532machaout_vec;
663
extern const bfd_target pc532netbsd_vec;
664
extern const bfd_target pdp11_aout_vec;
665
extern const bfd_target pmac_xcoff_vec;
666
extern const bfd_target ppcboot_vec;
667
extern const bfd_target riscix_vec;
668
extern const bfd_target rs6000coff64_vec;
669
extern const bfd_target rs6000coff_vec;
670
extern const bfd_target shcoff_small_vec;
671
extern const bfd_target shcoff_vec;
672
extern const bfd_target shlcoff_small_vec;
673
extern const bfd_target shlcoff_vec;
674
extern const bfd_target shlpe_vec;
675
extern const bfd_target shlpei_vec;
676
extern const bfd_target som_vec;
677
extern const bfd_target sparccoff_vec;
678
extern const bfd_target sparcle_aout_vec;
679
extern const bfd_target sparclinux_vec;
680
extern const bfd_target sparclynx_aout_vec;
681
extern const bfd_target sparclynx_coff_vec;
682
extern const bfd_target sparcnetbsd_vec;
683
extern const bfd_target sunos_big_vec;
684
extern const bfd_target tic30_aout_vec;
685
extern const bfd_target tic30_coff_vec;
686
extern const bfd_target tic4x_coff0_beh_vec;
687
extern const bfd_target tic4x_coff0_vec;
688
extern const bfd_target tic4x_coff1_beh_vec;
689
extern const bfd_target tic4x_coff1_vec;
690
extern const bfd_target tic4x_coff2_beh_vec;
691
extern const bfd_target tic4x_coff2_vec;
692
extern const bfd_target tic54x_coff0_beh_vec;
693
extern const bfd_target tic54x_coff0_vec;
694
extern const bfd_target tic54x_coff1_beh_vec;
695
extern const bfd_target tic54x_coff1_vec;
696
extern const bfd_target tic54x_coff2_beh_vec;
697
extern const bfd_target tic54x_coff2_vec;
698
extern const bfd_target tic80coff_vec;
699
extern const bfd_target vaxbsd_vec;
700
extern const bfd_target vaxnetbsd_vec;
701
extern const bfd_target vax1knetbsd_vec;
702
extern const bfd_target versados_vec;
703
extern const bfd_target vms_alpha_vec;
704
extern const bfd_target vms_vax_vec;
705
extern const bfd_target w65_vec;
706
extern const bfd_target we32kcoff_vec;
707
extern const bfd_target z8kcoff_vec;
708
 
709
/* These are always included.  */
710
extern const bfd_target srec_vec;
711
extern const bfd_target symbolsrec_vec;
712
extern const bfd_target tekhex_vec;
713
extern const bfd_target binary_vec;
714
extern const bfd_target ihex_vec;
715
 
716
/* All of the xvecs for core files.  */
717
extern const bfd_target aix386_core_vec;
718
extern const bfd_target cisco_core_big_vec;
719
extern const bfd_target cisco_core_little_vec;
720
extern const bfd_target hppabsd_core_vec;
721
extern const bfd_target hpux_core_vec;
722
extern const bfd_target irix_core_vec;
723
extern const bfd_target netbsd_core_vec;
724
extern const bfd_target osf_core_vec;
725
extern const bfd_target ptrace_core_vec;
726
extern const bfd_target sco5_core_vec;
727
extern const bfd_target trad_core_vec;
728
 
729
static const bfd_target * const _bfd_target_vector[] = {
730
 
731
#ifdef SELECT_VECS
732
 
733
        SELECT_VECS,
734
 
735
#else /* not SELECT_VECS */
736
 
737
#ifdef DEFAULT_VECTOR
738
        &DEFAULT_VECTOR,
739
#endif
740
        /* This list is alphabetized to make it easy to compare
741
           with other vector lists -- the decls above and
742
           the case statement in configure.in.
743
           Vectors that don't compile on all systems, or aren't finished,
744
           should have an entry here with #if 0 around it, to show that
745
           it wasn't omitted by mistake.  */
746
        &a29kcoff_big_vec,
747
        &a_out_adobe_vec,
748
#ifdef BFD64
749
        &aix5coff64_vec,
750
#endif
751
        &aout0_big_vec,
752
#if 0
753
        /* We have no way of distinguishing these from other a.out variants */
754
        &aout_arm_big_vec,
755
        &aout_arm_little_vec,
756
        /* No one seems to use this.  */
757
        &aout_mips_big_vec,
758
#endif
759
        &aout_mips_little_vec,
760
#if 0
761
        &apollocoff_vec,
762
#endif
763
        &arm_epoc_pe_big_vec,
764
        &arm_epoc_pe_little_vec,
765
        &arm_epoc_pei_big_vec,
766
        &arm_epoc_pei_little_vec,
767
        &armcoff_big_vec,
768
        &armcoff_little_vec,
769
        &armnetbsd_vec,
770
        &armpe_big_vec,
771
        &armpe_little_vec,
772
        &armpei_big_vec,
773
        &armpei_little_vec,
774
        &b_out_vec_big_host,
775
        &b_out_vec_little_host,
776
        &bfd_efi_app_ia32_vec,
777
#ifdef BFD64
778
        &bfd_efi_app_ia64_vec,
779
#endif
780
        &bfd_elf32_avr_vec,
781
 
782
        /* This, and other vectors, may not be used in any *.mt configuration.
783
           But that does not mean they are unnecessary.  If configured with
784
           --enable-targets=all, objdump or gdb should be able to examine
785
           the file even if we don't recognize the machine type.  */
786
        &bfd_elf32_big_generic_vec,
787
        &bfd_elf32_bigarc_vec,
788
        &bfd_elf32_bigarm_oabi_vec,
789
        &bfd_elf32_bigarm_vec,
790
        &bfd_elf32_bigmips_vec,
791
        &bfd_elf32_cris_vec,
792
        &bfd_elf32_d10v_vec,
793
        &bfd_elf32_d30v_vec,
794
        &bfd_elf32_dlx_big_vec,
795
        &bfd_elf32_fr30_vec,
796
        &bfd_elf32_frv_vec,
797
        &bfd_elf32_h8300_vec,
798
        &bfd_elf32_hppa_linux_vec,
799
        &bfd_elf32_hppa_vec,
800
        &bfd_elf32_i370_vec,
801
        &bfd_elf32_i386_vec,
802
        &bfd_elf32_i386qnx_vec,
803
        &bfd_elf32_i860_little_vec,
804
        &bfd_elf32_i860_vec,
805
        &bfd_elf32_i960_vec,
806
#if 0
807
        &bfd_elf32_ia64_big_vec,
808
#endif
809
        &bfd_elf32_ia64_hpux_big_vec,
810
        &bfd_elf32_ip2k_vec,
811
        &bfd_elf32_little_generic_vec,
812
        &bfd_elf32_littlearc_vec,
813
        &bfd_elf32_littlearm_oabi_vec,
814
        &bfd_elf32_littlearm_vec,
815
        &bfd_elf32_littlemips_vec,
816
        &bfd_elf32_m32r_vec,
817
        &bfd_elf32_m68hc11_vec,
818
        &bfd_elf32_m68hc12_vec,
819
        &bfd_elf32_m68k_vec,
820
        &bfd_elf32_m88k_vec,
821
        &bfd_elf32_mcore_big_vec,
822
        &bfd_elf32_mcore_little_vec,
823
        &bfd_elf32_mn10200_vec,
824
        &bfd_elf32_mn10300_vec,
825
#ifdef BFD64
826
        &bfd_elf32_nbigmips_vec,
827
        &bfd_elf32_nlittlemips_vec,
828
        &bfd_elf32_ntradbigmips_vec,
829
        &bfd_elf32_ntradlittlemips_vec,
830
#endif
831
        &bfd_elf32_openrisc_vec,
832
        &bfd_elf32_or32_big_vec,
833
        &bfd_elf32_pj_vec,
834
        &bfd_elf32_pjl_vec,
835
        &bfd_elf32_powerpc_vec,
836
        &bfd_elf32_powerpcle_vec,
837
        &bfd_elf32_powerpcleqnx_vec,
838
        &bfd_elf32_powerpcqnx_vec,
839
        &bfd_elf32_s390_vec,
840
        &bfd_elf32_sh_vec,
841
        &bfd_elf32_shblin_vec,
842
        &bfd_elf32_shl_vec,
843
        &bfd_elf32_shlin_vec,
844
        &bfd_elf32_shlnbsd_vec,
845
        &bfd_elf32_shnbsd_vec,
846
#ifdef BFD64
847
        &bfd_elf32_sh64_vec,
848
        &bfd_elf32_sh64l_vec,
849
        &bfd_elf32_sh64lnbsd_vec,
850
        &bfd_elf32_sh64nbsd_vec,
851
#endif
852
        &bfd_elf32_sparc_vec,
853
        &bfd_elf32_tradbigmips_vec,
854
        &bfd_elf32_tradlittlemips_vec,
855
        &bfd_elf32_us_cris_vec,
856
        &bfd_elf32_v850_vec,
857
        &bfd_elf32_vax_vec,
858
        &bfd_elf32_xstormy16_vec,
859
#ifdef BFD64
860
        &bfd_elf64_alpha_vec,
861
        &bfd_elf64_big_generic_vec,
862
        &bfd_elf64_bigmips_vec,
863
        &bfd_elf64_hppa_linux_vec,
864
        &bfd_elf64_hppa_vec,
865
        &bfd_elf64_ia64_aix_big_vec,
866
        &bfd_elf64_ia64_aix_little_vec,
867
        &bfd_elf64_ia64_big_vec,
868
        &bfd_elf64_ia64_hpux_big_vec,
869
        &bfd_elf64_ia64_little_vec,
870
        &bfd_elf64_little_generic_vec,
871
        &bfd_elf64_littlemips_vec,
872
        &bfd_elf64_mmix_vec,
873
        &bfd_elf64_powerpc_vec,
874
        &bfd_elf64_powerpcle_vec,
875
        &bfd_elf64_s390_vec,
876
        &bfd_elf64_sh64_vec,
877
        &bfd_elf64_sh64l_vec,
878
        &bfd_elf64_sh64lnbsd_vec,
879
        &bfd_elf64_sh64nbsd_vec,
880
#if 0
881
        &bfd_elf64_sparc_vec,
882
#endif
883
        &bfd_elf64_tradbigmips_vec,
884
        &bfd_elf64_tradlittlemips_vec,
885
        &bfd_elf64_x86_64_vec,
886
        &bfd_mmo_vec,
887
#endif
888
        &bfd_powerpc_pe_vec,
889
        &bfd_powerpc_pei_vec,
890
        &bfd_powerpcle_pe_vec,
891
        &bfd_powerpcle_pei_vec,
892
        &cris_aout_vec,
893
#ifdef BFD64
894
        &demo_64_vec,   /* Only compiled if host has long-long support */
895
#endif
896
        &ecoff_big_vec,
897
        &ecoff_biglittle_vec,
898
        &ecoff_little_vec,
899
#ifdef BFD64
900
        &ecoffalpha_little_vec,
901
#endif
902
        &go32coff_vec,
903
        &go32stubbedcoff_vec,
904
        &h8300coff_vec,
905
        &h8500coff_vec,
906
#if 0
907
        /* Since a.out files lack decent magic numbers, no way to recognize
908
           which kind of a.out file it is.  */
909
        &host_aout_vec,
910
        /* Clashes with sunos_big_vec magic no.  */
911
        &hp300bsd_vec,
912
#endif
913
        &hp300hpux_vec,
914
        &i386aout_vec,
915
        &i386bsd_vec,
916
        &i386coff_vec,
917
#if 0
918
        &i386dynix_vec,
919
#endif
920
        &i386freebsd_vec,
921
#if 0
922
        /* Since a.out files lack decent magic numbers, no way to recognize
923
           which kind of a.out file it is.  */
924
        &i386linux_vec,
925
#endif
926
        &i386lynx_aout_vec,
927
        &i386lynx_coff_vec,
928
#if 0
929
        /* No distinguishing features for Mach 3 executables.  */
930
        &i386mach3_vec,
931
#endif
932
        &i386msdos_vec,
933
        &i386netbsd_vec,
934
        &i386os9k_vec,
935
        &i386pe_vec,
936
        &i386pei_vec,
937
        &i860coff_vec,
938
        &icoff_big_vec,
939
        &icoff_little_vec,
940
        &ieee_vec,
941
#if 0
942
        &m68k4knetbsd_vec,
943
        &m68kaux_coff_vec,
944
#endif
945
        &m68kcoff_vec,
946
        &m68kcoffun_vec,
947
#if 0
948
        /* Since a.out files lack decent magic numbers, no way to recognize
949
           which kind of a.out file it is.  */
950
        &m68klinux_vec,
951
#endif
952
        &m68klynx_aout_vec,
953
        &m68klynx_coff_vec,
954
        &m68knetbsd_vec,
955
        &m68ksysvcoff_vec,
956
        &m88kbcs_vec,
957
        &m88kmach3_vec,
958
        &mcore_pe_big_vec,
959
        &mcore_pe_little_vec,
960
        &mcore_pei_big_vec,
961
        &mcore_pei_little_vec,
962
        &mipslpe_vec,
963
        &mipslpei_vec,
964
        &newsos3_vec,
965
#ifdef BFD64
966
        &nlm32_alpha_vec,
967
#endif
968
        &nlm32_i386_vec,
969
        &nlm32_powerpc_vec,
970
        &nlm32_sparc_vec,
971
#if 0
972
        /* We have no oasys tools anymore, so we can't test any of this
973
           anymore. If you want to test the stuff yourself, go ahead...
974
           steve@cygnus.com
975
           Worse, since there is no magic number for archives, there
976
           can be annoying target mis-matches.  */
977
        &oasys_vec,
978
#endif
979
        /* Entry for the OpenRISC family.  */
980
        &or32coff_big_vec,
981
 
982
        &pc532machaout_vec,
983
        &pc532netbsd_vec,
984
        &pdp11_aout_vec,
985
#if 0
986
        /* This has the same magic number as RS/6000.  */
987
        &pmac_xcoff_vec,
988
#endif
989
        &ppcboot_vec,
990
#if 0
991
        /* We have no way of distinguishing these from other a.out variants */
992
        &riscix_vec,
993
#endif
994
#ifdef BFD64
995
        &rs6000coff64_vec,
996
#endif
997
        &rs6000coff_vec,
998
        &shcoff_small_vec,
999
        &shcoff_vec,
1000
        &shlcoff_small_vec,
1001
        &shlcoff_vec,
1002
        &shlpe_vec,
1003
        &shlpei_vec,
1004
#if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF)
1005
        &som_vec,
1006
#endif
1007
        &sparccoff_vec,
1008
        &sparcle_aout_vec,
1009
        &sparclinux_vec,
1010
        &sparclynx_aout_vec,
1011
        &sparclynx_coff_vec,
1012
        &sparcnetbsd_vec,
1013
        &sunos_big_vec,
1014
        &tic30_aout_vec,
1015
        &tic30_coff_vec,
1016
        &tic54x_coff0_beh_vec,
1017
        &tic54x_coff0_vec,
1018
        &tic54x_coff1_beh_vec,
1019
        &tic54x_coff1_vec,
1020
        &tic54x_coff2_beh_vec,
1021
        &tic54x_coff2_vec,
1022
        &tic80coff_vec,
1023
        &vaxbsd_vec,
1024
        &vaxnetbsd_vec,
1025
        &vax1knetbsd_vec,
1026
        &versados_vec,
1027
#ifdef BFD64
1028
        &vms_alpha_vec,
1029
#endif
1030
        &vms_vax_vec,
1031
        &w65_vec,
1032
        &we32kcoff_vec,
1033
        &z8kcoff_vec,
1034
#endif /* not SELECT_VECS */
1035
 
1036
/* Always support S-records, for convenience.  */
1037
        &srec_vec,
1038
        &symbolsrec_vec,
1039
/* And tekhex */
1040
        &tekhex_vec,
1041
/* Likewise for binary output.  */
1042
        &binary_vec,
1043
/* Likewise for ihex.  */
1044
        &ihex_vec,
1045
 
1046
/* Add any required traditional-core-file-handler.  */
1047
 
1048
#ifdef AIX386_CORE
1049
        &aix386_core_vec,
1050
#endif
1051
#if 0
1052
        /* We don't include cisco_core_*_vec.  Although it has a magic number,
1053
           the magic number isn't at the beginning of the file, and thus
1054
           might spuriously match other kinds of files.  */
1055
        &cisco_core_big_vec,
1056
        &cisco_core_little_vec,
1057
#endif
1058
#ifdef HPPABSD_CORE
1059
        &hppabsd_core_vec,
1060
#endif
1061
#ifdef HPUX_CORE
1062
        &hpux_core_vec,
1063
#endif
1064
#ifdef IRIX_CORE
1065
        &irix_core_vec,
1066
#endif
1067
#ifdef NETBSD_CORE
1068
        &netbsd_core_vec,
1069
#endif
1070
#ifdef OSF_CORE
1071
        &osf_core_vec,
1072
#endif
1073
#ifdef PTRACE_CORE
1074
        &ptrace_core_vec,
1075
#endif
1076
#ifdef SCO5_CORE
1077
        &sco5_core_vec,
1078
#endif
1079
#ifdef TRAD_CORE
1080
        &trad_core_vec,
1081
#endif
1082
 
1083
        NULL /* end of list marker */
1084
};
1085
const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1086
 
1087
/* bfd_default_vector[0] contains either the address of the default vector,
1088
   if there is one, or zero if there isn't.  */
1089
 
1090
const bfd_target *bfd_default_vector[] = {
1091
#ifdef DEFAULT_VECTOR
1092
        &DEFAULT_VECTOR,
1093
#endif
1094
        NULL
1095
};
1096
 
1097
/* When there is an ambiguous match, bfd_check_format_matches puts the
1098
   names of the matching targets in an array.  This variable is the maximum
1099
   number of entries that the array could possibly need.  */
1100
const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1101
 
1102
/* This array maps configuration triplets onto BFD vectors.  */
1103
 
1104
struct targmatch
1105
{
1106
  /* The configuration triplet.  */
1107
  const char *triplet;
1108
  /* The BFD vector.  If this is NULL, then the vector is found by
1109
     searching forward for the next structure with a non NULL vector
1110
     field.  */
1111
  const bfd_target *vector;
1112
};
1113
 
1114
/* targmatch.h is built by Makefile out of config.bfd.  */
1115
static const struct targmatch bfd_target_match[] = {
1116
#include "targmatch.h"
1117
  { NULL, NULL }
1118
};
1119
 
1120
static const bfd_target *find_target PARAMS ((const char *));
1121
 
1122
/* Find a target vector, given a name or configuration triplet.  */
1123
 
1124
static const bfd_target *
1125
find_target (name)
1126
     const char *name;
1127
{
1128
  const bfd_target * const *target;
1129
  const struct targmatch *match;
1130
 
1131
  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1132
    if (strcmp (name, (*target)->name) == 0)
1133
      return *target;
1134
 
1135
  /* If we couldn't match on the exact name, try matching on the
1136
     configuration triplet.  FIXME: We should run the triplet through
1137
     config.sub first, but that is hard.  */
1138
  for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1139
    {
1140
      if (fnmatch (match->triplet, name, 0) == 0)
1141
        {
1142
          while (match->vector == NULL)
1143
            ++match;
1144
          return match->vector;
1145
          break;
1146
        }
1147
    }
1148
 
1149
  bfd_set_error (bfd_error_invalid_target);
1150
  return NULL;
1151
}
1152
 
1153
/*
1154
FUNCTION
1155
        bfd_set_default_target
1156
 
1157
SYNOPSIS
1158
        boolean bfd_set_default_target (const char *name);
1159
 
1160
DESCRIPTION
1161
        Set the default target vector to use when recognizing a BFD.
1162
        This takes the name of the target, which may be a BFD target
1163
        name or a configuration triplet.
1164
*/
1165
 
1166
boolean
1167
bfd_set_default_target (name)
1168
     const char *name;
1169
{
1170
  const bfd_target *target;
1171
 
1172
  if (bfd_default_vector[0] != NULL
1173
      && strcmp (name, bfd_default_vector[0]->name) == 0)
1174
    return true;
1175
 
1176
  target = find_target (name);
1177
  if (target == NULL)
1178
    return false;
1179
 
1180
  bfd_default_vector[0] = target;
1181
  return true;
1182
}
1183
 
1184
/*
1185
FUNCTION
1186
        bfd_find_target
1187
 
1188
SYNOPSIS
1189
        const bfd_target *bfd_find_target(const char *target_name, bfd *abfd);
1190
 
1191
DESCRIPTION
1192
        Return a pointer to the transfer vector for the object target
1193
        named @var{target_name}.  If @var{target_name} is <<NULL>>, choose the
1194
        one in the environment variable <<GNUTARGET>>; if that is null or not
1195
        defined, then choose the first entry in the target list.
1196
        Passing in the string "default" or setting the environment
1197
        variable to "default" will cause the first entry in the target
1198
        list to be returned, and "target_defaulted" will be set in the
1199
        BFD.  This causes <<bfd_check_format>> to loop over all the
1200
        targets to find the one that matches the file being read.
1201
*/
1202
 
1203
const bfd_target *
1204
bfd_find_target (target_name, abfd)
1205
     const char *target_name;
1206
     bfd *abfd;
1207
{
1208
  const char *targname;
1209
  const bfd_target *target;
1210
 
1211
  if (target_name != NULL)
1212
    targname = target_name;
1213
  else
1214
    targname = getenv ("GNUTARGET");
1215
 
1216
  /* This is safe; the vector cannot be null */
1217
  if (targname == NULL || strcmp (targname, "default") == 0)
1218
    {
1219
      abfd->target_defaulted = true;
1220
      if (bfd_default_vector[0] != NULL)
1221
        abfd->xvec = bfd_default_vector[0];
1222
      else
1223
        abfd->xvec = bfd_target_vector[0];
1224
      return abfd->xvec;
1225
    }
1226
 
1227
  abfd->target_defaulted = false;
1228
 
1229
  target = find_target (targname);
1230
  if (target == NULL)
1231
    return NULL;
1232
 
1233
  abfd->xvec = target;
1234
  return target;
1235
}
1236
 
1237
/*
1238
FUNCTION
1239
        bfd_target_list
1240
 
1241
SYNOPSIS
1242
        const char **bfd_target_list(void);
1243
 
1244
DESCRIPTION
1245
        Return a freshly malloced NULL-terminated
1246
        vector of the names of all the valid BFD targets. Do not
1247
        modify the names.
1248
 
1249
*/
1250
 
1251
const char **
1252
bfd_target_list ()
1253
{
1254
  int vec_length= 0;
1255
  bfd_size_type amt;
1256
#if defined (HOST_HPPAHPUX) && ! defined (__STDC__)
1257
  /* The native compiler on the HP9000/700 has a bug which causes it
1258
     to loop endlessly when compiling this file.  This avoids it.  */
1259
  volatile
1260
#endif
1261
  const bfd_target * const *target;
1262
  const  char **name_list, **name_ptr;
1263
 
1264
  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1265
    vec_length++;
1266
 
1267
  amt = (vec_length + 1) * sizeof (char **);
1268
  name_ptr = name_list = (const char **) bfd_zmalloc (amt);
1269
 
1270
  if (name_list == NULL)
1271
    return NULL;
1272
 
1273
  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1274
    *(name_ptr++) = (*target)->name;
1275
 
1276
  return name_list;
1277
}
1278
 
1279
/*
1280
FUNCTION
1281
        bfd_seach_for_target
1282
 
1283
SYNOPSIS
1284
        const bfd_target * bfd_search_for_target (int (* search_func) (const bfd_target *, void *), void *);
1285
 
1286
DESCRIPTION
1287
        Return a pointer to the first transfer vector in the list of
1288
        transfer vectors maintained by BFD that produces a non-zero
1289
        result when passed to the function @var{search_func}.  The
1290
        parameter @var{data} is passed, unexamined, to the search
1291
        function.
1292
*/
1293
 
1294
const bfd_target *
1295
bfd_search_for_target (search_func, data)
1296
     int (* search_func) PARAMS ((const bfd_target * target, void * data));
1297
     void * data;
1298
{
1299
  const bfd_target * const * target;
1300
 
1301
  for (target = bfd_target_vector; * target != NULL; target ++)
1302
    if (search_func (* target, data))
1303
      return * target;
1304
 
1305
  return NULL;
1306
}

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