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[/] [or1k/] [trunk/] [gdb-5.3/] [bfd/] [targets.c] - Blame information for rev 1765

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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 1183 sfurman
extern const bfd_target or16coff_big_vec;
663 1181 sfurman
extern const bfd_target pc532machaout_vec;
664
extern const bfd_target pc532netbsd_vec;
665
extern const bfd_target pdp11_aout_vec;
666
extern const bfd_target pmac_xcoff_vec;
667
extern const bfd_target ppcboot_vec;
668
extern const bfd_target riscix_vec;
669
extern const bfd_target rs6000coff64_vec;
670
extern const bfd_target rs6000coff_vec;
671
extern const bfd_target shcoff_small_vec;
672
extern const bfd_target shcoff_vec;
673
extern const bfd_target shlcoff_small_vec;
674
extern const bfd_target shlcoff_vec;
675
extern const bfd_target shlpe_vec;
676
extern const bfd_target shlpei_vec;
677
extern const bfd_target som_vec;
678
extern const bfd_target sparccoff_vec;
679
extern const bfd_target sparcle_aout_vec;
680
extern const bfd_target sparclinux_vec;
681
extern const bfd_target sparclynx_aout_vec;
682
extern const bfd_target sparclynx_coff_vec;
683
extern const bfd_target sparcnetbsd_vec;
684
extern const bfd_target sunos_big_vec;
685
extern const bfd_target tic30_aout_vec;
686
extern const bfd_target tic30_coff_vec;
687
extern const bfd_target tic4x_coff0_beh_vec;
688
extern const bfd_target tic4x_coff0_vec;
689
extern const bfd_target tic4x_coff1_beh_vec;
690
extern const bfd_target tic4x_coff1_vec;
691
extern const bfd_target tic4x_coff2_beh_vec;
692
extern const bfd_target tic4x_coff2_vec;
693
extern const bfd_target tic54x_coff0_beh_vec;
694
extern const bfd_target tic54x_coff0_vec;
695
extern const bfd_target tic54x_coff1_beh_vec;
696
extern const bfd_target tic54x_coff1_vec;
697
extern const bfd_target tic54x_coff2_beh_vec;
698
extern const bfd_target tic54x_coff2_vec;
699
extern const bfd_target tic80coff_vec;
700
extern const bfd_target vaxbsd_vec;
701
extern const bfd_target vaxnetbsd_vec;
702
extern const bfd_target vax1knetbsd_vec;
703
extern const bfd_target versados_vec;
704
extern const bfd_target vms_alpha_vec;
705
extern const bfd_target vms_vax_vec;
706
extern const bfd_target w65_vec;
707
extern const bfd_target we32kcoff_vec;
708
extern const bfd_target z8kcoff_vec;
709
 
710
/* These are always included.  */
711
extern const bfd_target srec_vec;
712
extern const bfd_target symbolsrec_vec;
713
extern const bfd_target tekhex_vec;
714
extern const bfd_target binary_vec;
715
extern const bfd_target ihex_vec;
716
 
717
/* All of the xvecs for core files.  */
718
extern const bfd_target aix386_core_vec;
719
extern const bfd_target cisco_core_big_vec;
720
extern const bfd_target cisco_core_little_vec;
721
extern const bfd_target hppabsd_core_vec;
722
extern const bfd_target hpux_core_vec;
723
extern const bfd_target irix_core_vec;
724
extern const bfd_target netbsd_core_vec;
725
extern const bfd_target osf_core_vec;
726
extern const bfd_target ptrace_core_vec;
727
extern const bfd_target sco5_core_vec;
728
extern const bfd_target trad_core_vec;
729
 
730
static const bfd_target * const _bfd_target_vector[] = {
731
 
732
#ifdef SELECT_VECS
733
 
734
        SELECT_VECS,
735
 
736
#else /* not SELECT_VECS */
737
 
738
#ifdef DEFAULT_VECTOR
739
        &DEFAULT_VECTOR,
740
#endif
741
        /* This list is alphabetized to make it easy to compare
742
           with other vector lists -- the decls above and
743
           the case statement in configure.in.
744
           Vectors that don't compile on all systems, or aren't finished,
745
           should have an entry here with #if 0 around it, to show that
746
           it wasn't omitted by mistake.  */
747
        &a29kcoff_big_vec,
748
        &a_out_adobe_vec,
749
#ifdef BFD64
750
        &aix5coff64_vec,
751
#endif
752
        &aout0_big_vec,
753
#if 0
754
        /* We have no way of distinguishing these from other a.out variants */
755
        &aout_arm_big_vec,
756
        &aout_arm_little_vec,
757
        /* No one seems to use this.  */
758
        &aout_mips_big_vec,
759
#endif
760
        &aout_mips_little_vec,
761
#if 0
762
        &apollocoff_vec,
763
#endif
764
        &arm_epoc_pe_big_vec,
765
        &arm_epoc_pe_little_vec,
766
        &arm_epoc_pei_big_vec,
767
        &arm_epoc_pei_little_vec,
768
        &armcoff_big_vec,
769
        &armcoff_little_vec,
770
        &armnetbsd_vec,
771
        &armpe_big_vec,
772
        &armpe_little_vec,
773
        &armpei_big_vec,
774
        &armpei_little_vec,
775
        &b_out_vec_big_host,
776
        &b_out_vec_little_host,
777
        &bfd_efi_app_ia32_vec,
778
#ifdef BFD64
779
        &bfd_efi_app_ia64_vec,
780
#endif
781
        &bfd_elf32_avr_vec,
782
 
783
        /* This, and other vectors, may not be used in any *.mt configuration.
784
           But that does not mean they are unnecessary.  If configured with
785
           --enable-targets=all, objdump or gdb should be able to examine
786
           the file even if we don't recognize the machine type.  */
787
        &bfd_elf32_big_generic_vec,
788
        &bfd_elf32_bigarc_vec,
789
        &bfd_elf32_bigarm_oabi_vec,
790
        &bfd_elf32_bigarm_vec,
791
        &bfd_elf32_bigmips_vec,
792
        &bfd_elf32_cris_vec,
793
        &bfd_elf32_d10v_vec,
794
        &bfd_elf32_d30v_vec,
795
        &bfd_elf32_dlx_big_vec,
796
        &bfd_elf32_fr30_vec,
797
        &bfd_elf32_frv_vec,
798
        &bfd_elf32_h8300_vec,
799
        &bfd_elf32_hppa_linux_vec,
800
        &bfd_elf32_hppa_vec,
801
        &bfd_elf32_i370_vec,
802
        &bfd_elf32_i386_vec,
803
        &bfd_elf32_i386qnx_vec,
804
        &bfd_elf32_i860_little_vec,
805
        &bfd_elf32_i860_vec,
806
        &bfd_elf32_i960_vec,
807
#if 0
808
        &bfd_elf32_ia64_big_vec,
809
#endif
810
        &bfd_elf32_ia64_hpux_big_vec,
811
        &bfd_elf32_ip2k_vec,
812
        &bfd_elf32_little_generic_vec,
813
        &bfd_elf32_littlearc_vec,
814
        &bfd_elf32_littlearm_oabi_vec,
815
        &bfd_elf32_littlearm_vec,
816
        &bfd_elf32_littlemips_vec,
817
        &bfd_elf32_m32r_vec,
818
        &bfd_elf32_m68hc11_vec,
819
        &bfd_elf32_m68hc12_vec,
820
        &bfd_elf32_m68k_vec,
821
        &bfd_elf32_m88k_vec,
822
        &bfd_elf32_mcore_big_vec,
823
        &bfd_elf32_mcore_little_vec,
824
        &bfd_elf32_mn10200_vec,
825
        &bfd_elf32_mn10300_vec,
826
#ifdef BFD64
827
        &bfd_elf32_nbigmips_vec,
828
        &bfd_elf32_nlittlemips_vec,
829
        &bfd_elf32_ntradbigmips_vec,
830
        &bfd_elf32_ntradlittlemips_vec,
831
#endif
832
        &bfd_elf32_openrisc_vec,
833
        &bfd_elf32_or32_big_vec,
834
        &bfd_elf32_pj_vec,
835
        &bfd_elf32_pjl_vec,
836
        &bfd_elf32_powerpc_vec,
837
        &bfd_elf32_powerpcle_vec,
838
        &bfd_elf32_powerpcleqnx_vec,
839
        &bfd_elf32_powerpcqnx_vec,
840
        &bfd_elf32_s390_vec,
841
        &bfd_elf32_sh_vec,
842
        &bfd_elf32_shblin_vec,
843
        &bfd_elf32_shl_vec,
844
        &bfd_elf32_shlin_vec,
845
        &bfd_elf32_shlnbsd_vec,
846
        &bfd_elf32_shnbsd_vec,
847
#ifdef BFD64
848
        &bfd_elf32_sh64_vec,
849
        &bfd_elf32_sh64l_vec,
850
        &bfd_elf32_sh64lnbsd_vec,
851
        &bfd_elf32_sh64nbsd_vec,
852
#endif
853
        &bfd_elf32_sparc_vec,
854
        &bfd_elf32_tradbigmips_vec,
855
        &bfd_elf32_tradlittlemips_vec,
856
        &bfd_elf32_us_cris_vec,
857
        &bfd_elf32_v850_vec,
858
        &bfd_elf32_vax_vec,
859
        &bfd_elf32_xstormy16_vec,
860
#ifdef BFD64
861
        &bfd_elf64_alpha_vec,
862
        &bfd_elf64_big_generic_vec,
863
        &bfd_elf64_bigmips_vec,
864
        &bfd_elf64_hppa_linux_vec,
865
        &bfd_elf64_hppa_vec,
866
        &bfd_elf64_ia64_aix_big_vec,
867
        &bfd_elf64_ia64_aix_little_vec,
868
        &bfd_elf64_ia64_big_vec,
869
        &bfd_elf64_ia64_hpux_big_vec,
870
        &bfd_elf64_ia64_little_vec,
871
        &bfd_elf64_little_generic_vec,
872
        &bfd_elf64_littlemips_vec,
873
        &bfd_elf64_mmix_vec,
874
        &bfd_elf64_powerpc_vec,
875
        &bfd_elf64_powerpcle_vec,
876
        &bfd_elf64_s390_vec,
877
        &bfd_elf64_sh64_vec,
878
        &bfd_elf64_sh64l_vec,
879
        &bfd_elf64_sh64lnbsd_vec,
880
        &bfd_elf64_sh64nbsd_vec,
881
#if 0
882
        &bfd_elf64_sparc_vec,
883
#endif
884
        &bfd_elf64_tradbigmips_vec,
885
        &bfd_elf64_tradlittlemips_vec,
886
        &bfd_elf64_x86_64_vec,
887
        &bfd_mmo_vec,
888
#endif
889
        &bfd_powerpc_pe_vec,
890
        &bfd_powerpc_pei_vec,
891
        &bfd_powerpcle_pe_vec,
892
        &bfd_powerpcle_pei_vec,
893
        &cris_aout_vec,
894
#ifdef BFD64
895
        &demo_64_vec,   /* Only compiled if host has long-long support */
896
#endif
897
        &ecoff_big_vec,
898
        &ecoff_biglittle_vec,
899
        &ecoff_little_vec,
900
#ifdef BFD64
901
        &ecoffalpha_little_vec,
902
#endif
903
        &go32coff_vec,
904
        &go32stubbedcoff_vec,
905
        &h8300coff_vec,
906
        &h8500coff_vec,
907
#if 0
908
        /* Since a.out files lack decent magic numbers, no way to recognize
909
           which kind of a.out file it is.  */
910
        &host_aout_vec,
911
        /* Clashes with sunos_big_vec magic no.  */
912
        &hp300bsd_vec,
913
#endif
914
        &hp300hpux_vec,
915
        &i386aout_vec,
916
        &i386bsd_vec,
917
        &i386coff_vec,
918
#if 0
919
        &i386dynix_vec,
920
#endif
921
        &i386freebsd_vec,
922
#if 0
923
        /* Since a.out files lack decent magic numbers, no way to recognize
924
           which kind of a.out file it is.  */
925
        &i386linux_vec,
926
#endif
927
        &i386lynx_aout_vec,
928
        &i386lynx_coff_vec,
929
#if 0
930
        /* No distinguishing features for Mach 3 executables.  */
931
        &i386mach3_vec,
932
#endif
933
        &i386msdos_vec,
934
        &i386netbsd_vec,
935
        &i386os9k_vec,
936
        &i386pe_vec,
937
        &i386pei_vec,
938
        &i860coff_vec,
939
        &icoff_big_vec,
940
        &icoff_little_vec,
941
        &ieee_vec,
942
#if 0
943
        &m68k4knetbsd_vec,
944
        &m68kaux_coff_vec,
945
#endif
946
        &m68kcoff_vec,
947
        &m68kcoffun_vec,
948
#if 0
949
        /* Since a.out files lack decent magic numbers, no way to recognize
950
           which kind of a.out file it is.  */
951
        &m68klinux_vec,
952
#endif
953
        &m68klynx_aout_vec,
954
        &m68klynx_coff_vec,
955
        &m68knetbsd_vec,
956
        &m68ksysvcoff_vec,
957
        &m88kbcs_vec,
958
        &m88kmach3_vec,
959
        &mcore_pe_big_vec,
960
        &mcore_pe_little_vec,
961
        &mcore_pei_big_vec,
962
        &mcore_pei_little_vec,
963
        &mipslpe_vec,
964
        &mipslpei_vec,
965
        &newsos3_vec,
966
#ifdef BFD64
967
        &nlm32_alpha_vec,
968
#endif
969
        &nlm32_i386_vec,
970
        &nlm32_powerpc_vec,
971
        &nlm32_sparc_vec,
972
#if 0
973
        /* We have no oasys tools anymore, so we can't test any of this
974
           anymore. If you want to test the stuff yourself, go ahead...
975
           steve@cygnus.com
976
           Worse, since there is no magic number for archives, there
977
           can be annoying target mis-matches.  */
978
        &oasys_vec,
979
#endif
980
        /* Entry for the OpenRISC family.  */
981
        &or32coff_big_vec,
982 1183 sfurman
        &or16coff_big_vec,
983 1181 sfurman
 
984
        &pc532machaout_vec,
985
        &pc532netbsd_vec,
986
        &pdp11_aout_vec,
987
#if 0
988
        /* This has the same magic number as RS/6000.  */
989
        &pmac_xcoff_vec,
990
#endif
991
        &ppcboot_vec,
992
#if 0
993
        /* We have no way of distinguishing these from other a.out variants */
994
        &riscix_vec,
995
#endif
996
#ifdef BFD64
997
        &rs6000coff64_vec,
998
#endif
999
        &rs6000coff_vec,
1000
        &shcoff_small_vec,
1001
        &shcoff_vec,
1002
        &shlcoff_small_vec,
1003
        &shlcoff_vec,
1004
        &shlpe_vec,
1005
        &shlpei_vec,
1006
#if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF)
1007
        &som_vec,
1008
#endif
1009
        &sparccoff_vec,
1010
        &sparcle_aout_vec,
1011
        &sparclinux_vec,
1012
        &sparclynx_aout_vec,
1013
        &sparclynx_coff_vec,
1014
        &sparcnetbsd_vec,
1015
        &sunos_big_vec,
1016
        &tic30_aout_vec,
1017
        &tic30_coff_vec,
1018
        &tic54x_coff0_beh_vec,
1019
        &tic54x_coff0_vec,
1020
        &tic54x_coff1_beh_vec,
1021
        &tic54x_coff1_vec,
1022
        &tic54x_coff2_beh_vec,
1023
        &tic54x_coff2_vec,
1024
        &tic80coff_vec,
1025
        &vaxbsd_vec,
1026
        &vaxnetbsd_vec,
1027
        &vax1knetbsd_vec,
1028
        &versados_vec,
1029
#ifdef BFD64
1030
        &vms_alpha_vec,
1031
#endif
1032
        &vms_vax_vec,
1033
        &w65_vec,
1034
        &we32kcoff_vec,
1035
        &z8kcoff_vec,
1036
#endif /* not SELECT_VECS */
1037
 
1038
/* Always support S-records, for convenience.  */
1039
        &srec_vec,
1040
        &symbolsrec_vec,
1041
/* And tekhex */
1042
        &tekhex_vec,
1043
/* Likewise for binary output.  */
1044
        &binary_vec,
1045
/* Likewise for ihex.  */
1046
        &ihex_vec,
1047
 
1048
/* Add any required traditional-core-file-handler.  */
1049
 
1050
#ifdef AIX386_CORE
1051
        &aix386_core_vec,
1052
#endif
1053
#if 0
1054
        /* We don't include cisco_core_*_vec.  Although it has a magic number,
1055
           the magic number isn't at the beginning of the file, and thus
1056
           might spuriously match other kinds of files.  */
1057
        &cisco_core_big_vec,
1058
        &cisco_core_little_vec,
1059
#endif
1060
#ifdef HPPABSD_CORE
1061
        &hppabsd_core_vec,
1062
#endif
1063
#ifdef HPUX_CORE
1064
        &hpux_core_vec,
1065
#endif
1066
#ifdef IRIX_CORE
1067
        &irix_core_vec,
1068
#endif
1069
#ifdef NETBSD_CORE
1070
        &netbsd_core_vec,
1071
#endif
1072
#ifdef OSF_CORE
1073
        &osf_core_vec,
1074
#endif
1075
#ifdef PTRACE_CORE
1076
        &ptrace_core_vec,
1077
#endif
1078
#ifdef SCO5_CORE
1079
        &sco5_core_vec,
1080
#endif
1081
#ifdef TRAD_CORE
1082
        &trad_core_vec,
1083
#endif
1084
 
1085
        NULL /* end of list marker */
1086
};
1087
const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1088
 
1089
/* bfd_default_vector[0] contains either the address of the default vector,
1090
   if there is one, or zero if there isn't.  */
1091
 
1092
const bfd_target *bfd_default_vector[] = {
1093
#ifdef DEFAULT_VECTOR
1094
        &DEFAULT_VECTOR,
1095
#endif
1096
        NULL
1097
};
1098
 
1099
/* When there is an ambiguous match, bfd_check_format_matches puts the
1100
   names of the matching targets in an array.  This variable is the maximum
1101
   number of entries that the array could possibly need.  */
1102
const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1103
 
1104
/* This array maps configuration triplets onto BFD vectors.  */
1105
 
1106
struct targmatch
1107
{
1108
  /* The configuration triplet.  */
1109
  const char *triplet;
1110
  /* The BFD vector.  If this is NULL, then the vector is found by
1111
     searching forward for the next structure with a non NULL vector
1112
     field.  */
1113
  const bfd_target *vector;
1114
};
1115
 
1116
/* targmatch.h is built by Makefile out of config.bfd.  */
1117
static const struct targmatch bfd_target_match[] = {
1118
#include "targmatch.h"
1119
  { NULL, NULL }
1120
};
1121
 
1122
static const bfd_target *find_target PARAMS ((const char *));
1123
 
1124
/* Find a target vector, given a name or configuration triplet.  */
1125
 
1126
static const bfd_target *
1127
find_target (name)
1128
     const char *name;
1129
{
1130
  const bfd_target * const *target;
1131
  const struct targmatch *match;
1132
 
1133
  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1134
    if (strcmp (name, (*target)->name) == 0)
1135
      return *target;
1136
 
1137
  /* If we couldn't match on the exact name, try matching on the
1138
     configuration triplet.  FIXME: We should run the triplet through
1139
     config.sub first, but that is hard.  */
1140
  for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1141
    {
1142
      if (fnmatch (match->triplet, name, 0) == 0)
1143
        {
1144
          while (match->vector == NULL)
1145
            ++match;
1146
          return match->vector;
1147
          break;
1148
        }
1149
    }
1150
 
1151
  bfd_set_error (bfd_error_invalid_target);
1152
  return NULL;
1153
}
1154
 
1155
/*
1156
FUNCTION
1157
        bfd_set_default_target
1158
 
1159
SYNOPSIS
1160
        boolean bfd_set_default_target (const char *name);
1161
 
1162
DESCRIPTION
1163
        Set the default target vector to use when recognizing a BFD.
1164
        This takes the name of the target, which may be a BFD target
1165
        name or a configuration triplet.
1166
*/
1167
 
1168
boolean
1169
bfd_set_default_target (name)
1170
     const char *name;
1171
{
1172
  const bfd_target *target;
1173
 
1174
  if (bfd_default_vector[0] != NULL
1175
      && strcmp (name, bfd_default_vector[0]->name) == 0)
1176
    return true;
1177
 
1178
  target = find_target (name);
1179
  if (target == NULL)
1180
    return false;
1181
 
1182
  bfd_default_vector[0] = target;
1183
  return true;
1184
}
1185
 
1186
/*
1187
FUNCTION
1188
        bfd_find_target
1189
 
1190
SYNOPSIS
1191
        const bfd_target *bfd_find_target(const char *target_name, bfd *abfd);
1192
 
1193
DESCRIPTION
1194
        Return a pointer to the transfer vector for the object target
1195
        named @var{target_name}.  If @var{target_name} is <<NULL>>, choose the
1196
        one in the environment variable <<GNUTARGET>>; if that is null or not
1197
        defined, then choose the first entry in the target list.
1198
        Passing in the string "default" or setting the environment
1199
        variable to "default" will cause the first entry in the target
1200
        list to be returned, and "target_defaulted" will be set in the
1201
        BFD.  This causes <<bfd_check_format>> to loop over all the
1202
        targets to find the one that matches the file being read.
1203
*/
1204
 
1205
const bfd_target *
1206
bfd_find_target (target_name, abfd)
1207
     const char *target_name;
1208
     bfd *abfd;
1209
{
1210
  const char *targname;
1211
  const bfd_target *target;
1212
 
1213
  if (target_name != NULL)
1214
    targname = target_name;
1215
  else
1216
    targname = getenv ("GNUTARGET");
1217
 
1218
  /* This is safe; the vector cannot be null */
1219
  if (targname == NULL || strcmp (targname, "default") == 0)
1220
    {
1221
      abfd->target_defaulted = true;
1222
      if (bfd_default_vector[0] != NULL)
1223
        abfd->xvec = bfd_default_vector[0];
1224
      else
1225
        abfd->xvec = bfd_target_vector[0];
1226
      return abfd->xvec;
1227
    }
1228
 
1229
  abfd->target_defaulted = false;
1230
 
1231
  target = find_target (targname);
1232
  if (target == NULL)
1233
    return NULL;
1234
 
1235
  abfd->xvec = target;
1236
  return target;
1237
}
1238
 
1239
/*
1240
FUNCTION
1241
        bfd_target_list
1242
 
1243
SYNOPSIS
1244
        const char **bfd_target_list(void);
1245
 
1246
DESCRIPTION
1247
        Return a freshly malloced NULL-terminated
1248
        vector of the names of all the valid BFD targets. Do not
1249
        modify the names.
1250
 
1251
*/
1252
 
1253
const char **
1254
bfd_target_list ()
1255
{
1256
  int vec_length= 0;
1257
  bfd_size_type amt;
1258
#if defined (HOST_HPPAHPUX) && ! defined (__STDC__)
1259
  /* The native compiler on the HP9000/700 has a bug which causes it
1260
     to loop endlessly when compiling this file.  This avoids it.  */
1261
  volatile
1262
#endif
1263
  const bfd_target * const *target;
1264
  const  char **name_list, **name_ptr;
1265
 
1266
  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1267
    vec_length++;
1268
 
1269
  amt = (vec_length + 1) * sizeof (char **);
1270
  name_ptr = name_list = (const char **) bfd_zmalloc (amt);
1271
 
1272
  if (name_list == NULL)
1273
    return NULL;
1274
 
1275
  for (target = &bfd_target_vector[0]; *target != NULL; target++)
1276
    *(name_ptr++) = (*target)->name;
1277
 
1278
  return name_list;
1279
}
1280
 
1281
/*
1282
FUNCTION
1283
        bfd_seach_for_target
1284
 
1285
SYNOPSIS
1286
        const bfd_target * bfd_search_for_target (int (* search_func) (const bfd_target *, void *), void *);
1287
 
1288
DESCRIPTION
1289
        Return a pointer to the first transfer vector in the list of
1290
        transfer vectors maintained by BFD that produces a non-zero
1291
        result when passed to the function @var{search_func}.  The
1292
        parameter @var{data} is passed, unexamined, to the search
1293
        function.
1294
*/
1295
 
1296
const bfd_target *
1297
bfd_search_for_target (search_func, data)
1298
     int (* search_func) PARAMS ((const bfd_target * target, void * data));
1299
     void * data;
1300
{
1301
  const bfd_target * const * target;
1302
 
1303
  for (target = bfd_target_vector; * target != NULL; target ++)
1304
    if (search_func (* target, data))
1305
      return * target;
1306
 
1307
  return NULL;
1308
}

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