aboutsummaryrefslogtreecommitdiff
path: root/bfd/libcoff.h
blob: 1e11ec09d648c7061d41c830f62d53ca585446be (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
/* DO NOT EDIT!  -*- buffer-read-only: t -*-  This file is automatically 
   generated from "libcoff-in.h" and "coffcode.h".
   Run "make headers" in your build bfd/ to regenerate.  */

/* BFD COFF object file private structure.
   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   2000, 2001, 2002
   Free Software Foundation, Inc.
   Written by Cygnus Support.

This file is part of BFD, the Binary File Descriptor library.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#include "bfdlink.h"

/* Object file tdata; access macros */

#define coff_data(bfd)		((bfd)->tdata.coff_obj_data)
#define exec_hdr(bfd)		(coff_data(bfd)->hdr)
#define obj_pe(bfd)             (coff_data(bfd)->pe)
#define obj_symbols(bfd)	(coff_data(bfd)->symbols)
#define	obj_sym_filepos(bfd)	(coff_data(bfd)->sym_filepos)

#define obj_relocbase(bfd)	(coff_data(bfd)->relocbase)
#define obj_raw_syments(bfd)	(coff_data(bfd)->raw_syments)
#define obj_raw_syment_count(bfd)	(coff_data(bfd)->raw_syment_count)
#define obj_convert(bfd)	(coff_data(bfd)->conversion_table)
#define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size)

#define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms)
#define obj_coff_keep_syms(bfd)	(coff_data (bfd)->keep_syms)
#define obj_coff_strings(bfd)	(coff_data (bfd)->strings)
#define obj_coff_keep_strings(bfd) (coff_data (bfd)->keep_strings)
#define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes)
#define obj_coff_strings_written(bfd) (coff_data (bfd)->strings_written)

#define obj_coff_local_toc_table(bfd) (coff_data(bfd)->local_toc_sym_map)

/* `Tdata' information kept for COFF files.  */

typedef struct coff_tdata
{
  struct   coff_symbol_struct *symbols;	/* symtab for input bfd */
  unsigned int *conversion_table;
  int conv_table_size;
  file_ptr sym_filepos;

  struct coff_ptr_struct *raw_syments;
  unsigned long raw_syment_count;

  /* These are only valid once writing has begun */
  long int relocbase;

  /* These members communicate important constants about the symbol table
     to GDB's symbol-reading code.  These `constants' unfortunately vary
     from coff implementation to implementation...  */
  unsigned local_n_btmask;
  unsigned local_n_btshft;
  unsigned local_n_tmask;
  unsigned local_n_tshift;
  unsigned local_symesz;
  unsigned local_auxesz;
  unsigned local_linesz;

  /* The unswapped external symbols.  May be NULL.  Read by
     _bfd_coff_get_external_symbols.  */
  PTR external_syms;
  /* If this is TRUE, the external_syms may not be freed.  */
  bfd_boolean keep_syms;

  /* The string table.  May be NULL.  Read by
     _bfd_coff_read_string_table.  */
  char *strings;
  /* If this is TRUE, the strings may not be freed.  */
  bfd_boolean keep_strings;
  /* If this is TRUE, the strings have been written out already.  */
  bfd_boolean strings_written;

  /* is this a PE format coff file */
  int pe;
  /* Used by the COFF backend linker.  */
  struct coff_link_hash_entry **sym_hashes;

  /* used by the pe linker for PowerPC */
  int *local_toc_sym_map;

  struct bfd_link_info *link_info;

  /* Used by coff_find_nearest_line.  */
  PTR line_info;

  /* A place to stash dwarf2 info for this bfd. */
  PTR dwarf2_find_line_info;

  /* The timestamp from the COFF file header.  */
  long timestamp;

  /* Copy of some of the f_flags bits in the COFF filehdr structure,
     used by ARM code.  */
  flagword flags;

} coff_data_type;

/* Tdata for pe image files. */
typedef struct pe_tdata
{
  coff_data_type coff;
  struct internal_extra_pe_aouthdr pe_opthdr;
  int dll;
  int has_reloc_section;
  bfd_boolean (*in_reloc_p) PARAMS((bfd *, reloc_howto_type *));
  flagword real_flags;
  int target_subsystem;
  bfd_boolean force_minimum_alignment;
} pe_data_type;

#define pe_data(bfd)		((bfd)->tdata.pe_obj_data)

/* Tdata for XCOFF files.  */

struct xcoff_tdata
{
  /* Basic COFF information.  */
  coff_data_type coff;

  /* TRUE if this is an XCOFF64 file. */
  bfd_boolean xcoff64;

  /* TRUE if a large a.out header should be generated.  */
  bfd_boolean full_aouthdr;

  /* TOC value.  */
  bfd_vma toc;

  /* Index of section holding TOC.  */
  int sntoc;

  /* Index of section holding entry point.  */
  int snentry;

  /* .text alignment from optional header.  */
  int text_align_power;

  /* .data alignment from optional header.  */
  int data_align_power;

  /* modtype from optional header.  */
  short modtype;

  /* cputype from optional header.  */
  short cputype;

  /* maxdata from optional header.  */
  bfd_vma maxdata;

  /* maxstack from optional header.  */
  bfd_vma maxstack;

  /* Used by the XCOFF backend linker.  */
  asection **csects;
  unsigned long *debug_indices;
  unsigned int import_file_id;
};

#define xcoff_data(abfd) ((abfd)->tdata.xcoff_obj_data)

/* We take the address of the first element of an asymbol to ensure that the
 * macro is only ever applied to an asymbol.  */
#define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))

/* The used_by_bfd field of a section may be set to a pointer to this
   structure.  */

struct coff_section_tdata
{
  /* The relocs, swapped into COFF internal form.  This may be NULL.  */
  struct internal_reloc *relocs;
  /* If this is TRUE, the relocs entry may not be freed.  */
  bfd_boolean keep_relocs;
  /* The section contents.  This may be NULL.  */
  bfd_byte *contents;
  /* If this is TRUE, the contents entry may not be freed.  */
  bfd_boolean keep_contents;
  /* Information cached by coff_find_nearest_line.  */
  bfd_vma offset;
  unsigned int i;
  const char *function;
  int line_base;
  /* A pointer used for .stab linking optimizations.  */
  PTR stab_info;
  /* Available for individual backends.  */
  PTR tdata;
};

/* An accessor macro for the coff_section_tdata structure.  */
#define coff_section_data(abfd, sec) \
  ((struct coff_section_tdata *) (sec)->used_by_bfd)

/* Tdata for sections in XCOFF files.  This is used by the linker.  */

struct xcoff_section_tdata
{
  /* Used for XCOFF csects created by the linker; points to the real
     XCOFF section which contains this csect.  */
  asection *enclosing;
  /* The lineno_count field for the enclosing section, because we are
     going to clobber it there.  */
  unsigned int lineno_count;
  /* The first and one past the last symbol indices for symbols used
     by this csect.  */
  unsigned long first_symndx;
  unsigned long last_symndx;
};

/* An accessor macro the xcoff_section_tdata structure.  */
#define xcoff_section_data(abfd, sec) \
  ((struct xcoff_section_tdata *) coff_section_data ((abfd), (sec))->tdata)

/* Tdata for sections in PE files.  */

struct pei_section_tdata
{
  /* The virtual size of the section.  */
  bfd_size_type virt_size;
  /* The PE section flags.  */
  long pe_flags;
};

/* An accessor macro for the pei_section_tdata structure.  */
#define pei_section_data(abfd, sec) \
  ((struct pei_section_tdata *) coff_section_data ((abfd), (sec))->tdata)

/* COFF linker hash table entries.  */

struct coff_link_hash_entry
{
  struct bfd_link_hash_entry root;

  /* Symbol index in output file.  Set to -1 initially.  Set to -2 if
     there is a reloc against this symbol.  */
  long indx;

  /* Symbol type.  */
  unsigned short type;

  /* Symbol class.  */
  unsigned char class;

  /* Number of auxiliary entries.  */
  char numaux;

  /* BFD to take auxiliary entries from.  */
  bfd *auxbfd;

  /* Pointer to array of auxiliary entries, if any.  */
  union internal_auxent *aux;

  /* Flag word; legal values follow.  */
  unsigned short coff_link_hash_flags;
  /* Symbol is a PE section symbol.  */
#define COFF_LINK_HASH_PE_SECTION_SYMBOL (01)
};

/* COFF linker hash table.  */

struct coff_link_hash_table
{
  struct bfd_link_hash_table root;
  /* A pointer to information used to link stabs in sections.  */
  PTR stab_info;
};

/* Look up an entry in a COFF linker hash table.  */

#define coff_link_hash_lookup(table, string, create, copy, follow)	\
  ((struct coff_link_hash_entry *)					\
   bfd_link_hash_lookup (&(table)->root, (string), (create),		\
			 (copy), (follow)))

/* Traverse a COFF linker hash table.  */

#define coff_link_hash_traverse(table, func, info)			\
  (bfd_link_hash_traverse						\
   (&(table)->root,							\
    (bfd_boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
    (info)))

/* Get the COFF linker hash table from a link_info structure.  */

#define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))

/* Functions in coffgen.c.  */
extern const bfd_target *coff_object_p
  PARAMS ((bfd *));
extern struct sec *coff_section_from_bfd_index
  PARAMS ((bfd *, int));
extern long coff_get_symtab_upper_bound
  PARAMS ((bfd *));
extern long coff_get_symtab
  PARAMS ((bfd *, asymbol **));
extern int coff_count_linenumbers
  PARAMS ((bfd *));
extern struct coff_symbol_struct *coff_symbol_from
  PARAMS ((bfd *, asymbol *));
extern bfd_boolean coff_renumber_symbols
  PARAMS ((bfd *, int *));
extern void coff_mangle_symbols
  PARAMS ((bfd *));
extern bfd_boolean coff_write_symbols
  PARAMS ((bfd *));
extern bfd_boolean coff_write_linenumbers
  PARAMS ((bfd *));
extern alent *coff_get_lineno
  PARAMS ((bfd *, asymbol *));
extern asymbol *coff_section_symbol
  PARAMS ((bfd *, char *));
extern bfd_boolean _bfd_coff_get_external_symbols
  PARAMS ((bfd *));
extern const char *_bfd_coff_read_string_table
  PARAMS ((bfd *));
extern bfd_boolean _bfd_coff_free_symbols
  PARAMS ((bfd *));
extern struct coff_ptr_struct *coff_get_normalized_symtab
  PARAMS ((bfd *));
extern long coff_get_reloc_upper_bound
  PARAMS ((bfd *, sec_ptr));
extern asymbol *coff_make_empty_symbol
  PARAMS ((bfd *));
extern void coff_print_symbol
  PARAMS ((bfd *, PTR filep, asymbol *, bfd_print_symbol_type));
extern void coff_get_symbol_info
  PARAMS ((bfd *, asymbol *, symbol_info *ret));
extern bfd_boolean _bfd_coff_is_local_label_name
  PARAMS ((bfd *, const char *));
extern asymbol *coff_bfd_make_debug_symbol
  PARAMS ((bfd *, PTR, unsigned long));
extern bfd_boolean coff_find_nearest_line
  PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **,
	   const char **, unsigned int *));
extern int coff_sizeof_headers
  PARAMS ((bfd *, bfd_boolean));
extern bfd_boolean bfd_coff_reloc16_relax_section
  PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *));
extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents
  PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
	   bfd_byte *, bfd_boolean, asymbol **));
extern bfd_vma bfd_coff_reloc16_get_value
   PARAMS ((arelent *, struct bfd_link_info *, asection *));
extern void bfd_perform_slip
  PARAMS ((bfd *, unsigned int, asection *, bfd_vma));

/* Functions and types in cofflink.c.  */

#define STRING_SIZE_SIZE (4)

/* We use a hash table to merge identical enum, struct, and union
   definitions in the linker.  */

/* Information we keep for a single element (an enum value, a
   structure or union field) in the debug merge hash table.  */

struct coff_debug_merge_element
{
  /* Next element.  */
  struct coff_debug_merge_element *next;

  /* Name.  */
  const char *name;

  /* Type.  */
  unsigned int type;

  /* Symbol index for complex type.  */
  long tagndx;
};

/* A linked list of debug merge entries for a given name.  */

struct coff_debug_merge_type
{
  /* Next type with the same name.  */
  struct coff_debug_merge_type *next;

  /* Class of type.  */
  int class;

  /* Symbol index where this type is defined.  */
  long indx;

  /* List of elements.  */
  struct coff_debug_merge_element *elements;
};

/* Information we store in the debug merge hash table.  */

struct coff_debug_merge_hash_entry
{
  struct bfd_hash_entry root;

  /* A list of types with this name.  */
  struct coff_debug_merge_type *types;
};

/* The debug merge hash table.  */

struct coff_debug_merge_hash_table
{
  struct bfd_hash_table root;
};

/* Initialize a COFF debug merge hash table.  */

#define coff_debug_merge_hash_table_init(table) \
  (bfd_hash_table_init (&(table)->root, _bfd_coff_debug_merge_hash_newfunc))

/* Free a COFF debug merge hash table.  */

#define coff_debug_merge_hash_table_free(table) \
  (bfd_hash_table_free (&(table)->root))

/* Look up an entry in a COFF debug merge hash table.  */

#define coff_debug_merge_hash_lookup(table, string, create, copy) \
  ((struct coff_debug_merge_hash_entry *) \
   bfd_hash_lookup (&(table)->root, (string), (create), (copy)))

/* Information we keep for each section in the output file when doing
   a relocatable link.  */

struct coff_link_section_info
{
  /* The relocs to be output.  */
  struct internal_reloc *relocs;
  /* For each reloc against a global symbol whose index was not known
     when the reloc was handled, the global hash table entry.  */
  struct coff_link_hash_entry **rel_hashes;
};

/* Information that we pass around while doing the final link step.  */

struct coff_final_link_info
{
  /* General link information.  */
  struct bfd_link_info *info;
  /* Output BFD.  */
  bfd *output_bfd;
  /* Used to indicate failure in traversal routine.  */
  bfd_boolean failed;
  /* If doing "task linking" set only during the time when we want the
     global symbol writer to convert the storage class of defined global
     symbols from global to static. */
  bfd_boolean global_to_static;
  /* Hash table for long symbol names.  */
  struct bfd_strtab_hash *strtab;
  /* When doing a relocatable link, an array of information kept for
     each output section, indexed by the target_index field.  */
  struct coff_link_section_info *section_info;
  /* Symbol index of last C_FILE symbol (-1 if none).  */
  long last_file_index;
  /* Contents of last C_FILE symbol.  */
  struct internal_syment last_file;
  /* Symbol index of first aux entry of last .bf symbol with an empty
     endndx field (-1 if none).  */
  long last_bf_index;
  /* Contents of last_bf_index aux entry.  */
  union internal_auxent last_bf;
  /* Hash table used to merge debug information.  */
  struct coff_debug_merge_hash_table debug_merge;
  /* Buffer large enough to hold swapped symbols of any input file.  */
  struct internal_syment *internal_syms;
  /* Buffer large enough to hold sections of symbols of any input file.  */
  asection **sec_ptrs;
  /* Buffer large enough to hold output indices of symbols of any
     input file.  */
  long *sym_indices;
  /* Buffer large enough to hold output symbols for any input file.  */
  bfd_byte *outsyms;
  /* Buffer large enough to hold external line numbers for any input
     section.  */
  bfd_byte *linenos;
  /* Buffer large enough to hold any input section.  */
  bfd_byte *contents;
  /* Buffer large enough to hold external relocs of any input section.  */
  bfd_byte *external_relocs;
  /* Buffer large enough to hold swapped relocs of any input section.  */
  struct internal_reloc *internal_relocs;
};

/* Most COFF variants have no way to record the alignment of a
   section.  This struct is used to set a specific alignment based on
   the name of the section.  */

struct coff_section_alignment_entry
{
  /* The section name.  */
  const char *name;

  /* This is either (unsigned int) -1, indicating that the section
     name must match exactly, or it is the number of letters which
     must match at the start of the name.  */
  unsigned int comparison_length;

  /* These macros may be used to fill in the first two fields in a
     structure initialization.  */
#define COFF_SECTION_NAME_EXACT_MATCH(name) (name), ((unsigned int) -1)
#define COFF_SECTION_NAME_PARTIAL_MATCH(name) (name), (sizeof (name) - 1)

  /* Only use this entry if the default section alignment for this
     target is at least that much (as a power of two).  If this field
     is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored.  */
  unsigned int default_alignment_min;

  /* Only use this entry if the default section alignment for this
     target is no greater than this (as a power of two).  If this
     field is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored.  */
  unsigned int default_alignment_max;

#define COFF_ALIGNMENT_FIELD_EMPTY ((unsigned int) -1)

  /* The desired alignment for this section (as a power of two).  */
  unsigned int alignment_power;
};

extern struct bfd_hash_entry *_bfd_coff_link_hash_newfunc
  PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
extern bfd_boolean _bfd_coff_link_hash_table_init
  PARAMS ((struct coff_link_hash_table *, bfd *,
	   struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
				       struct bfd_hash_table *,
				       const char *)));
extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create
  PARAMS ((bfd *));
extern const char *_bfd_coff_internal_syment_name
  PARAMS ((bfd *, const struct internal_syment *, char *));
extern bfd_boolean _bfd_coff_link_add_symbols
  PARAMS ((bfd *, struct bfd_link_info *));
extern bfd_boolean _bfd_coff_final_link
  PARAMS ((bfd *, struct bfd_link_info *));
extern struct internal_reloc *_bfd_coff_read_internal_relocs
  PARAMS ((bfd *, asection *, bfd_boolean, bfd_byte *, bfd_boolean,
	   struct internal_reloc *));
extern bfd_boolean _bfd_coff_generic_relocate_section
  PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
	   struct internal_reloc *, struct internal_syment *, asection **));

extern struct bfd_hash_entry *_bfd_coff_debug_merge_hash_newfunc
  PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
extern bfd_boolean _bfd_coff_write_global_sym
  PARAMS ((struct coff_link_hash_entry *, PTR));
extern bfd_boolean _bfd_coff_write_task_globals
  PARAMS ((struct coff_link_hash_entry *, PTR));
extern bfd_boolean _bfd_coff_link_input_bfd
  PARAMS ((struct coff_final_link_info *, bfd *));
extern bfd_boolean _bfd_coff_reloc_link_order
  PARAMS ((bfd *, struct coff_final_link_info *, asection *,
	   struct bfd_link_order *));


#define coff_get_section_contents_in_window \
  _bfd_generic_get_section_contents_in_window

/* Functions in xcofflink.c.  */

extern long _bfd_xcoff_get_dynamic_symtab_upper_bound
  PARAMS ((bfd *));
extern long _bfd_xcoff_canonicalize_dynamic_symtab
  PARAMS ((bfd *, asymbol **));
extern long _bfd_xcoff_get_dynamic_reloc_upper_bound
  PARAMS ((bfd *));
extern long _bfd_xcoff_canonicalize_dynamic_reloc
  PARAMS ((bfd *, arelent **, asymbol **));
extern struct bfd_link_hash_table *_bfd_xcoff_bfd_link_hash_table_create
  PARAMS ((bfd *));
extern void _bfd_xcoff_bfd_link_hash_table_free
  PARAMS ((struct bfd_link_hash_table *));
extern bfd_boolean _bfd_xcoff_bfd_link_add_symbols
  PARAMS ((bfd *, struct bfd_link_info *));
extern bfd_boolean _bfd_xcoff_bfd_final_link
  PARAMS ((bfd *, struct bfd_link_info *));
extern bfd_boolean _bfd_ppc_xcoff_relocate_section
  PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
	   struct internal_reloc *, struct internal_syment *, asection **));

/* Functions in coff-ppc.c.  FIXME: These are called be pe.em in the
   linker, and so should start with bfd and be declared in bfd.h.  */

extern bfd_boolean ppc_allocate_toc_section
  PARAMS ((struct bfd_link_info *));
extern bfd_boolean ppc_process_before_allocation
  PARAMS ((bfd *, struct bfd_link_info *));

/* Extracted from coffcode.h.  */
typedef struct coff_ptr_struct
{
  /* Remembers the offset from the first symbol in the file for
     this symbol. Generated by coff_renumber_symbols. */
  unsigned int offset;

  /* Should the value of this symbol be renumbered.  Used for
     XCOFF C_BSTAT symbols.  Set by coff_slurp_symbol_table.  */
  unsigned int fix_value : 1;

  /* Should the tag field of this symbol be renumbered.
     Created by coff_pointerize_aux. */
  unsigned int fix_tag : 1;

  /* Should the endidx field of this symbol be renumbered.
     Created by coff_pointerize_aux. */
  unsigned int fix_end : 1;

  /* Should the x_csect.x_scnlen field be renumbered.
     Created by coff_pointerize_aux. */
  unsigned int fix_scnlen : 1;

  /* Fix up an XCOFF C_BINCL/C_EINCL symbol.  The value is the
     index into the line number entries.  Set by coff_slurp_symbol_table.  */
  unsigned int fix_line : 1;

  /* The container for the symbol structure as read and translated
     from the file. */
  union
  {
    union internal_auxent auxent;
    struct internal_syment syment;
  } u;
} combined_entry_type;


/* Each canonical asymbol really looks like this: */

typedef struct coff_symbol_struct
{
  /* The actual symbol which the rest of BFD works with */
  asymbol symbol;

  /* A pointer to the hidden information for this symbol */
  combined_entry_type *native;

  /* A pointer to the linenumber information for this symbol */
  struct lineno_cache_entry *lineno;

  /* Have the line numbers been relocated yet ? */
  bfd_boolean done_lineno;
} coff_symbol_type;
/* COFF symbol classifications.  */

enum coff_symbol_classification
{
  /* Global symbol.  */
  COFF_SYMBOL_GLOBAL,
  /* Common symbol.  */
  COFF_SYMBOL_COMMON,
  /* Undefined symbol.  */
  COFF_SYMBOL_UNDEFINED,
  /* Local symbol.  */
  COFF_SYMBOL_LOCAL,
  /* PE section symbol.  */
  COFF_SYMBOL_PE_SECTION
};

typedef struct
{
  void (*_bfd_coff_swap_aux_in)
    PARAMS ((bfd *, PTR, int, int, int, int, PTR));

  void (*_bfd_coff_swap_sym_in)
    PARAMS ((bfd *, PTR, PTR));

  void (*_bfd_coff_swap_lineno_in)
    PARAMS ((bfd *, PTR, PTR));

  unsigned int (*_bfd_coff_swap_aux_out)
    PARAMS ((bfd *, PTR, int, int, int, int, PTR));

  unsigned int (*_bfd_coff_swap_sym_out)
    PARAMS ((bfd *, PTR, PTR));

  unsigned int (*_bfd_coff_swap_lineno_out)
    PARAMS ((bfd *, PTR, PTR));

  unsigned int (*_bfd_coff_swap_reloc_out)
    PARAMS ((bfd *, PTR, PTR));

  unsigned int (*_bfd_coff_swap_filehdr_out)
    PARAMS ((bfd *, PTR, PTR));

  unsigned int (*_bfd_coff_swap_aouthdr_out)
    PARAMS ((bfd *, PTR, PTR));

  unsigned int (*_bfd_coff_swap_scnhdr_out)
    PARAMS ((bfd *, PTR, PTR));

  unsigned int _bfd_filhsz;
  unsigned int _bfd_aoutsz;
  unsigned int _bfd_scnhsz;
  unsigned int _bfd_symesz;
  unsigned int _bfd_auxesz;
  unsigned int _bfd_relsz;
  unsigned int _bfd_linesz;
  unsigned int _bfd_filnmlen;
  bfd_boolean _bfd_coff_long_filenames;
  bfd_boolean _bfd_coff_long_section_names;
  unsigned int _bfd_coff_default_section_alignment_power;
  bfd_boolean _bfd_coff_force_symnames_in_strings;
  unsigned int _bfd_coff_debug_string_prefix_length;

  void (*_bfd_coff_swap_filehdr_in)
    PARAMS ((bfd *, PTR, PTR));

  void (*_bfd_coff_swap_aouthdr_in)
    PARAMS ((bfd *, PTR, PTR));

  void (*_bfd_coff_swap_scnhdr_in)
    PARAMS ((bfd *, PTR, PTR));

  void (*_bfd_coff_swap_reloc_in)
    PARAMS ((bfd *abfd, PTR, PTR));

  bfd_boolean (*_bfd_coff_bad_format_hook)
    PARAMS ((bfd *, PTR));

  bfd_boolean (*_bfd_coff_set_arch_mach_hook)
    PARAMS ((bfd *, PTR));

  PTR (*_bfd_coff_mkobject_hook)
    PARAMS ((bfd *, PTR, PTR));

  bfd_boolean (*_bfd_styp_to_sec_flags_hook)
    PARAMS ((bfd *, PTR, const char *, asection *, flagword *));

  void (*_bfd_set_alignment_hook)
    PARAMS ((bfd *, asection *, PTR));

  bfd_boolean (*_bfd_coff_slurp_symbol_table)
    PARAMS ((bfd *));

  bfd_boolean (*_bfd_coff_symname_in_debug)
    PARAMS ((bfd *, struct internal_syment *));

  bfd_boolean (*_bfd_coff_pointerize_aux_hook)
    PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
            unsigned int, combined_entry_type *));

  bfd_boolean (*_bfd_coff_print_aux)
    PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *,
            combined_entry_type *, unsigned int));

  void (*_bfd_coff_reloc16_extra_cases)
    PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
           bfd_byte *, unsigned int *, unsigned int *));

  int (*_bfd_coff_reloc16_estimate)
    PARAMS ((bfd *, asection *, arelent *, unsigned int,
            struct bfd_link_info *));

  enum coff_symbol_classification (*_bfd_coff_classify_symbol)
    PARAMS ((bfd *, struct internal_syment *));

  bfd_boolean (*_bfd_coff_compute_section_file_positions)
    PARAMS ((bfd *));

  bfd_boolean (*_bfd_coff_start_final_link)
    PARAMS ((bfd *, struct bfd_link_info *));

  bfd_boolean (*_bfd_coff_relocate_section)
    PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
            struct internal_reloc *, struct internal_syment *, asection **));

  reloc_howto_type *(*_bfd_coff_rtype_to_howto)
    PARAMS ((bfd *, asection *, struct internal_reloc *,
            struct coff_link_hash_entry *, struct internal_syment *,
            bfd_vma *));

  bfd_boolean (*_bfd_coff_adjust_symndx)
    PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
            struct internal_reloc *, bfd_boolean *));

  bfd_boolean (*_bfd_coff_link_add_one_symbol)
    PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword,
            asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
            struct bfd_link_hash_entry **));

  bfd_boolean (*_bfd_coff_link_output_has_begun)
    PARAMS ((bfd *, struct coff_final_link_info *));

  bfd_boolean (*_bfd_coff_final_link_postscript)
    PARAMS ((bfd *, struct coff_final_link_info *));

} bfd_coff_backend_data;

#define coff_backend_info(abfd) \
  ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)

#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
  ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))

#define bfd_coff_swap_sym_in(a,e,i) \
  ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))

#define bfd_coff_swap_lineno_in(a,e,i) \
  ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))

#define bfd_coff_swap_reloc_out(abfd, i, o) \
  ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))

#define bfd_coff_swap_lineno_out(abfd, i, o) \
  ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))

#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
  ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))

#define bfd_coff_swap_sym_out(abfd, i,o) \
  ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))

#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
  ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))

#define bfd_coff_swap_filehdr_out(abfd, i,o) \
  ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))

#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
  ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))

#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
#define bfd_coff_relsz(abfd)  (coff_backend_info (abfd)->_bfd_relsz)
#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
#define bfd_coff_long_filenames(abfd) \
  (coff_backend_info (abfd)->_bfd_coff_long_filenames)
#define bfd_coff_long_section_names(abfd) \
  (coff_backend_info (abfd)->_bfd_coff_long_section_names)
#define bfd_coff_default_section_alignment_power(abfd) \
  (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
#define bfd_coff_swap_filehdr_in(abfd, i,o) \
  ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))

#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
  ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))

#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
  ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))

#define bfd_coff_swap_reloc_in(abfd, i, o) \
  ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))

#define bfd_coff_bad_format_hook(abfd, filehdr) \
  ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))

#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
  ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
  ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
   (abfd, filehdr, aouthdr))

#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
  ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
   (abfd, scnhdr, name, section, flags_ptr))

#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
  ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))

#define bfd_coff_slurp_symbol_table(abfd)\
  ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))

#define bfd_coff_symname_in_debug(abfd, sym)\
  ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))

#define bfd_coff_force_symnames_in_strings(abfd)\
  (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)

#define bfd_coff_debug_string_prefix_length(abfd)\
  (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)

#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
  ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
   (abfd, file, base, symbol, aux, indaux))

#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
                                     reloc, data, src_ptr, dst_ptr)\
  ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
   (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))

#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
  ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
   (abfd, section, reloc, shrink, link_info))

#define bfd_coff_classify_symbol(abfd, sym)\
  ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
   (abfd, sym))

#define bfd_coff_compute_section_file_positions(abfd)\
  ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
   (abfd))

#define bfd_coff_start_final_link(obfd, info)\
  ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
   (obfd, info))
#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
  ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
   (obfd, info, ibfd, o, con, rel, isyms, secs))
#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
  ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
   (abfd, sec, rel, h, sym, addendp))
#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
  ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
   (obfd, info, ibfd, sec, rel, adjustedp))
#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
                                     value, string, cp, coll, hashp)\
  ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
   (info, abfd, name, flags, section, value, string, cp, coll, hashp))

#define bfd_coff_link_output_has_begun(a,p) \
  ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
#define bfd_coff_final_link_postscript(a,p) \
  ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))