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[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.18.50/] [bfd/] [libcoff.h] - Blame information for rev 156

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/* DO NOT EDIT!  -*- buffer-read-only: t -*-  This file is automatically
2
   generated from "libcoff-in.h" and "coffcode.h".
3
   Run "make headers" in your build bfd/ to regenerate.  */
4
 
5
/* BFD COFF object file private structure.
6
   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
7
   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
8
   Free Software Foundation, Inc.
9
   Written by Cygnus Support.
10
 
11
   This file is part of BFD, the Binary File Descriptor library.
12
 
13
   This program is free software; you can redistribute it and/or modify
14
   it under the terms of the GNU General Public License as published by
15
   the Free Software Foundation; either version 3 of the License, or
16
   (at your option) any later version.
17
 
18
   This program is distributed in the hope that it will be useful,
19
   but WITHOUT ANY WARRANTY; without even the implied warranty of
20
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21
   GNU General Public License for more details.
22
 
23
   You should have received a copy of the GNU General Public License
24
   along with this program; if not, write to the Free Software
25
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
26
   MA 02110-1301, USA.  */
27
 
28
#include "bfdlink.h"
29
 
30
/* Object file tdata; access macros.  */
31
 
32
#define coff_data(bfd)                ((bfd)->tdata.coff_obj_data)
33
#define exec_hdr(bfd)                 (coff_data (bfd)->hdr)
34
#define obj_pe(bfd)                   (coff_data (bfd)->pe)
35
#define obj_symbols(bfd)              (coff_data (bfd)->symbols)
36
#define obj_sym_filepos(bfd)          (coff_data (bfd)->sym_filepos)
37
#define obj_relocbase(bfd)            (coff_data (bfd)->relocbase)
38
#define obj_raw_syments(bfd)          (coff_data (bfd)->raw_syments)
39
#define obj_raw_syment_count(bfd)     (coff_data (bfd)->raw_syment_count)
40
#define obj_convert(bfd)              (coff_data (bfd)->conversion_table)
41
#define obj_conv_table_size(bfd)      (coff_data (bfd)->conv_table_size)
42
#define obj_coff_external_syms(bfd)   (coff_data (bfd)->external_syms)
43
#define obj_coff_keep_syms(bfd)       (coff_data (bfd)->keep_syms)
44
#define obj_coff_strings(bfd)         (coff_data (bfd)->strings)
45
#define obj_coff_keep_strings(bfd)    (coff_data (bfd)->keep_strings)
46
#define obj_coff_sym_hashes(bfd)      (coff_data (bfd)->sym_hashes)
47
#define obj_coff_strings_written(bfd) (coff_data (bfd)->strings_written)
48
#define obj_coff_local_toc_table(bfd) (coff_data (bfd)->local_toc_sym_map)
49
 
50
/* `Tdata' information kept for COFF files.  */
51
 
52
typedef struct coff_tdata
53
{
54
  struct coff_symbol_struct *symbols;   /* Symtab for input bfd.  */
55
  unsigned int *conversion_table;
56
  int conv_table_size;
57
  file_ptr sym_filepos;
58
 
59
  struct coff_ptr_struct *raw_syments;
60
  unsigned long raw_syment_count;
61
 
62
  /* These are only valid once writing has begun.  */
63
  long int relocbase;
64
 
65
  /* These members communicate important constants about the symbol table
66
     to GDB's symbol-reading code.  These `constants' unfortunately vary
67
     from coff implementation to implementation...  */
68
  unsigned local_n_btmask;
69
  unsigned local_n_btshft;
70
  unsigned local_n_tmask;
71
  unsigned local_n_tshift;
72
  unsigned local_symesz;
73
  unsigned local_auxesz;
74
  unsigned local_linesz;
75
 
76
  /* The unswapped external symbols.  May be NULL.  Read by
77
     _bfd_coff_get_external_symbols.  */
78
  void * external_syms;
79
  /* If this is TRUE, the external_syms may not be freed.  */
80
  bfd_boolean keep_syms;
81
 
82
  /* The string table.  May be NULL.  Read by
83
     _bfd_coff_read_string_table.  */
84
  char *strings;
85
  /* If this is TRUE, the strings may not be freed.  */
86
  bfd_boolean keep_strings;
87
  /* If this is TRUE, the strings have been written out already.  */
88
  bfd_boolean strings_written;
89
 
90
  /* Is this a PE format coff file?  */
91
  int pe;
92
  /* Used by the COFF backend linker.  */
93
  struct coff_link_hash_entry **sym_hashes;
94
 
95
  /* Used by the pe linker for PowerPC.  */
96
  int *local_toc_sym_map;
97
 
98
  struct bfd_link_info *link_info;
99
 
100
  /* Used by coff_find_nearest_line.  */
101
  void * line_info;
102
 
103
  /* A place to stash dwarf2 info for this bfd.  */
104
  void * dwarf2_find_line_info;
105
 
106
  /* The timestamp from the COFF file header.  */
107
  long timestamp;
108
 
109
  /* Copy of some of the f_flags bits in the COFF filehdr structure,
110
     used by ARM code.  */
111
  flagword flags;
112
 
113
} coff_data_type;
114
 
115
/* Tdata for pe image files.  */
116
typedef struct pe_tdata
117
{
118
  coff_data_type coff;
119
  struct internal_extra_pe_aouthdr pe_opthdr;
120
  int dll;
121
  int has_reloc_section;
122
  bfd_boolean (*in_reloc_p) (bfd *, reloc_howto_type *);
123
  flagword real_flags;
124
  int target_subsystem;
125
  bfd_boolean force_minimum_alignment;
126
} pe_data_type;
127
 
128
#define pe_data(bfd)            ((bfd)->tdata.pe_obj_data)
129
 
130
/* Tdata for XCOFF files.  */
131
 
132
struct xcoff_tdata
133
{
134
  /* Basic COFF information.  */
135
  coff_data_type coff;
136
 
137
  /* TRUE if this is an XCOFF64 file. */
138
  bfd_boolean xcoff64;
139
 
140
  /* TRUE if a large a.out header should be generated.  */
141
  bfd_boolean full_aouthdr;
142
 
143
  /* TOC value.  */
144
  bfd_vma toc;
145
 
146
  /* Index of section holding TOC.  */
147
  int sntoc;
148
 
149
  /* Index of section holding entry point.  */
150
  int snentry;
151
 
152
  /* .text alignment from optional header.  */
153
  int text_align_power;
154
 
155
  /* .data alignment from optional header.  */
156
  int data_align_power;
157
 
158
  /* modtype from optional header.  */
159
  short modtype;
160
 
161
  /* cputype from optional header.  */
162
  short cputype;
163
 
164
  /* maxdata from optional header.  */
165
  bfd_vma maxdata;
166
 
167
  /* maxstack from optional header.  */
168
  bfd_vma maxstack;
169
 
170
  /* Used by the XCOFF backend linker.  */
171
  asection **csects;
172
  unsigned long *debug_indices;
173
  unsigned int import_file_id;
174
};
175
 
176
#define xcoff_data(abfd) ((abfd)->tdata.xcoff_obj_data)
177
 
178
/* We take the address of the first element of an asymbol to ensure that the
179
   macro is only ever applied to an asymbol.  */
180
#define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
181
 
182
/* The used_by_bfd field of a section may be set to a pointer to this
183
   structure.  */
184
 
185
struct coff_section_tdata
186
{
187
  /* The relocs, swapped into COFF internal form.  This may be NULL.  */
188
  struct internal_reloc *relocs;
189
  /* If this is TRUE, the relocs entry may not be freed.  */
190
  bfd_boolean keep_relocs;
191
  /* The section contents.  This may be NULL.  */
192
  bfd_byte *contents;
193
  /* If this is TRUE, the contents entry may not be freed.  */
194
  bfd_boolean keep_contents;
195
  /* Information cached by coff_find_nearest_line.  */
196
  bfd_vma offset;
197
  unsigned int i;
198
  const char *function;
199
  /* Optional information about a COMDAT entry; NULL if not COMDAT. */
200
  struct coff_comdat_info *comdat;
201
  int line_base;
202
  /* A pointer used for .stab linking optimizations.  */
203
  void * stab_info;
204
  /* Available for individual backends.  */
205
  void * tdata;
206
};
207
 
208
/* An accessor macro for the coff_section_tdata structure.  */
209
#define coff_section_data(abfd, sec) \
210
  ((struct coff_section_tdata *) (sec)->used_by_bfd)
211
 
212
/* Tdata for sections in XCOFF files.  This is used by the linker.  */
213
 
214
struct xcoff_section_tdata
215
{
216
  /* Used for XCOFF csects created by the linker; points to the real
217
     XCOFF section which contains this csect.  */
218
  asection *enclosing;
219
  /* The lineno_count field for the enclosing section, because we are
220
     going to clobber it there.  */
221
  unsigned int lineno_count;
222
  /* The first and one past the last symbol indices for symbols used
223
     by this csect.  */
224
  unsigned long first_symndx;
225
  unsigned long last_symndx;
226
};
227
 
228
/* An accessor macro the xcoff_section_tdata structure.  */
229
#define xcoff_section_data(abfd, sec) \
230
  ((struct xcoff_section_tdata *) coff_section_data ((abfd), (sec))->tdata)
231
 
232
/* Tdata for sections in PE files.  */
233
 
234
struct pei_section_tdata
235
{
236
  /* The virtual size of the section.  */
237
  bfd_size_type virt_size;
238
  /* The PE section flags.  */
239
  long pe_flags;
240
};
241
 
242
/* An accessor macro for the pei_section_tdata structure.  */
243
#define pei_section_data(abfd, sec) \
244
  ((struct pei_section_tdata *) coff_section_data ((abfd), (sec))->tdata)
245
 
246
/* COFF linker hash table entries.  */
247
 
248
struct coff_link_hash_entry
249
{
250
  struct bfd_link_hash_entry root;
251
 
252
  /* Symbol index in output file.  Set to -1 initially.  Set to -2 if
253
     there is a reloc against this symbol.  */
254
  long indx;
255
 
256
  /* Symbol type.  */
257
  unsigned short type;
258
 
259
  /* Symbol class.  */
260
  unsigned char class;
261
 
262
  /* Number of auxiliary entries.  */
263
  char numaux;
264
 
265
  /* BFD to take auxiliary entries from.  */
266
  bfd *auxbfd;
267
 
268
  /* Pointer to array of auxiliary entries, if any.  */
269
  union internal_auxent *aux;
270
 
271
  /* Flag word; legal values follow.  */
272
  unsigned short coff_link_hash_flags;
273
  /* Symbol is a PE section symbol.  */
274
#define COFF_LINK_HASH_PE_SECTION_SYMBOL (01)
275
};
276
 
277
/* COFF linker hash table.  */
278
 
279
struct coff_link_hash_table
280
{
281
  struct bfd_link_hash_table root;
282
  /* A pointer to information used to link stabs in sections.  */
283
  struct stab_info stab_info;
284
};
285
 
286
/* Look up an entry in a COFF linker hash table.  */
287
 
288
#define coff_link_hash_lookup(table, string, create, copy, follow)      \
289
  ((struct coff_link_hash_entry *)                                      \
290
   bfd_link_hash_lookup (&(table)->root, (string), (create),            \
291
                         (copy), (follow)))
292
 
293
/* Traverse a COFF linker hash table.  */
294
 
295
#define coff_link_hash_traverse(table, func, info)                      \
296
  (bfd_link_hash_traverse                                               \
297
   (&(table)->root,                                                     \
298
    (bfd_boolean (*) (struct bfd_link_hash_entry *, void *)) (func), \
299
    (info)))
300
 
301
/* Get the COFF linker hash table from a link_info structure.  */
302
 
303
#define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
304
 
305
/* Functions in coffgen.c.  */
306
extern const bfd_target *coff_object_p
307
  (bfd *);
308
extern struct bfd_section *coff_section_from_bfd_index
309
  (bfd *, int);
310
extern long coff_get_symtab_upper_bound
311
  (bfd *);
312
extern long coff_canonicalize_symtab
313
  (bfd *, asymbol **);
314
extern int coff_count_linenumbers
315
  (bfd *);
316
extern struct coff_symbol_struct *coff_symbol_from
317
  (bfd *, asymbol *);
318
extern bfd_boolean coff_renumber_symbols
319
  (bfd *, int *);
320
extern void coff_mangle_symbols
321
  (bfd *);
322
extern bfd_boolean coff_write_symbols
323
  (bfd *);
324
extern bfd_boolean coff_write_linenumbers
325
  (bfd *);
326
extern alent *coff_get_lineno
327
  (bfd *, asymbol *);
328
extern asymbol *coff_section_symbol
329
  (bfd *, char *);
330
extern bfd_boolean _bfd_coff_get_external_symbols
331
  (bfd *);
332
extern const char *_bfd_coff_read_string_table
333
  (bfd *);
334
extern bfd_boolean _bfd_coff_free_symbols
335
  (bfd *);
336
extern struct coff_ptr_struct *coff_get_normalized_symtab
337
  (bfd *);
338
extern long coff_get_reloc_upper_bound
339
  (bfd *, sec_ptr);
340
extern asymbol *coff_make_empty_symbol
341
  (bfd *);
342
extern void coff_print_symbol
343
  (bfd *, void * filep, asymbol *, bfd_print_symbol_type);
344
extern void coff_get_symbol_info
345
  (bfd *, asymbol *, symbol_info *ret);
346
extern bfd_boolean _bfd_coff_is_local_label_name
347
  (bfd *, const char *);
348
extern asymbol *coff_bfd_make_debug_symbol
349
  (bfd *, void *, unsigned long);
350
extern bfd_boolean coff_find_nearest_line
351
  (bfd *, asection *, asymbol **, bfd_vma, const char **,
352
   const char **, unsigned int *);
353
extern bfd_boolean coff_find_inliner_info
354
  (bfd *, const char **, const char **, unsigned int *);
355
extern int coff_sizeof_headers
356
  (bfd *, struct bfd_link_info *);
357
extern bfd_boolean bfd_coff_reloc16_relax_section
358
  (bfd *, asection *, struct bfd_link_info *, bfd_boolean *);
359
extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents
360
  (bfd *, struct bfd_link_info *, struct bfd_link_order *,
361
   bfd_byte *, bfd_boolean, asymbol **);
362
extern bfd_vma bfd_coff_reloc16_get_value
363
  (arelent *, struct bfd_link_info *, asection *);
364
extern void bfd_perform_slip
365
  (bfd *, unsigned int, asection *, bfd_vma);
366
 
367
/* Functions and types in cofflink.c.  */
368
 
369
#define STRING_SIZE_SIZE 4
370
 
371
/* We use a hash table to merge identical enum, struct, and union
372
   definitions in the linker.  */
373
 
374
/* Information we keep for a single element (an enum value, a
375
   structure or union field) in the debug merge hash table.  */
376
 
377
struct coff_debug_merge_element
378
{
379
  /* Next element.  */
380
  struct coff_debug_merge_element *next;
381
 
382
  /* Name.  */
383
  const char *name;
384
 
385
  /* Type.  */
386
  unsigned int type;
387
 
388
  /* Symbol index for complex type.  */
389
  long tagndx;
390
};
391
 
392
/* A linked list of debug merge entries for a given name.  */
393
 
394
struct coff_debug_merge_type
395
{
396
  /* Next type with the same name.  */
397
  struct coff_debug_merge_type *next;
398
 
399
  /* Class of type.  */
400
  int class;
401
 
402
  /* Symbol index where this type is defined.  */
403
  long indx;
404
 
405
  /* List of elements.  */
406
  struct coff_debug_merge_element *elements;
407
};
408
 
409
/* Information we store in the debug merge hash table.  */
410
 
411
struct coff_debug_merge_hash_entry
412
{
413
  struct bfd_hash_entry root;
414
 
415
  /* A list of types with this name.  */
416
  struct coff_debug_merge_type *types;
417
};
418
 
419
/* The debug merge hash table.  */
420
 
421
struct coff_debug_merge_hash_table
422
{
423
  struct bfd_hash_table root;
424
};
425
 
426
/* Initialize a COFF debug merge hash table.  */
427
 
428
#define coff_debug_merge_hash_table_init(table) \
429
  (bfd_hash_table_init (&(table)->root, _bfd_coff_debug_merge_hash_newfunc, \
430
                        sizeof (struct coff_debug_merge_hash_entry)))
431
 
432
/* Free a COFF debug merge hash table.  */
433
 
434
#define coff_debug_merge_hash_table_free(table) \
435
  (bfd_hash_table_free (&(table)->root))
436
 
437
/* Look up an entry in a COFF debug merge hash table.  */
438
 
439
#define coff_debug_merge_hash_lookup(table, string, create, copy) \
440
  ((struct coff_debug_merge_hash_entry *) \
441
   bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
442
 
443
/* Information we keep for each section in the output file when doing
444
   a relocatable link.  */
445
 
446
struct coff_link_section_info
447
{
448
  /* The relocs to be output.  */
449
  struct internal_reloc *relocs;
450
  /* For each reloc against a global symbol whose index was not known
451
     when the reloc was handled, the global hash table entry.  */
452
  struct coff_link_hash_entry **rel_hashes;
453
};
454
 
455
/* Information that we pass around while doing the final link step.  */
456
 
457
struct coff_final_link_info
458
{
459
  /* General link information.  */
460
  struct bfd_link_info *info;
461
  /* Output BFD.  */
462
  bfd *output_bfd;
463
  /* Used to indicate failure in traversal routine.  */
464
  bfd_boolean failed;
465
  /* If doing "task linking" set only during the time when we want the
466
     global symbol writer to convert the storage class of defined global
467
     symbols from global to static. */
468
  bfd_boolean global_to_static;
469
  /* Hash table for long symbol names.  */
470
  struct bfd_strtab_hash *strtab;
471
  /* When doing a relocatable link, an array of information kept for
472
     each output section, indexed by the target_index field.  */
473
  struct coff_link_section_info *section_info;
474
  /* Symbol index of last C_FILE symbol (-1 if none).  */
475
  long last_file_index;
476
  /* Contents of last C_FILE symbol.  */
477
  struct internal_syment last_file;
478
  /* Symbol index of first aux entry of last .bf symbol with an empty
479
     endndx field (-1 if none).  */
480
  long last_bf_index;
481
  /* Contents of last_bf_index aux entry.  */
482
  union internal_auxent last_bf;
483
  /* Hash table used to merge debug information.  */
484
  struct coff_debug_merge_hash_table debug_merge;
485
  /* Buffer large enough to hold swapped symbols of any input file.  */
486
  struct internal_syment *internal_syms;
487
  /* Buffer large enough to hold sections of symbols of any input file.  */
488
  asection **sec_ptrs;
489
  /* Buffer large enough to hold output indices of symbols of any
490
     input file.  */
491
  long *sym_indices;
492
  /* Buffer large enough to hold output symbols for any input file.  */
493
  bfd_byte *outsyms;
494
  /* Buffer large enough to hold external line numbers for any input
495
     section.  */
496
  bfd_byte *linenos;
497
  /* Buffer large enough to hold any input section.  */
498
  bfd_byte *contents;
499
  /* Buffer large enough to hold external relocs of any input section.  */
500
  bfd_byte *external_relocs;
501
  /* Buffer large enough to hold swapped relocs of any input section.  */
502
  struct internal_reloc *internal_relocs;
503
};
504
 
505
/* Most COFF variants have no way to record the alignment of a
506
   section.  This struct is used to set a specific alignment based on
507
   the name of the section.  */
508
 
509
struct coff_section_alignment_entry
510
{
511
  /* The section name.  */
512
  const char *name;
513
 
514
  /* This is either (unsigned int) -1, indicating that the section
515
     name must match exactly, or it is the number of letters which
516
     must match at the start of the name.  */
517
  unsigned int comparison_length;
518
 
519
  /* These macros may be used to fill in the first two fields in a
520
     structure initialization.  */
521
#define COFF_SECTION_NAME_EXACT_MATCH(name) (name), ((unsigned int) -1)
522
#define COFF_SECTION_NAME_PARTIAL_MATCH(name) (name), (sizeof (name) - 1)
523
 
524
  /* Only use this entry if the default section alignment for this
525
     target is at least that much (as a power of two).  If this field
526
     is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored.  */
527
  unsigned int default_alignment_min;
528
 
529
  /* Only use this entry if the default section alignment for this
530
     target is no greater than this (as a power of two).  If this
531
     field is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored.  */
532
  unsigned int default_alignment_max;
533
 
534
#define COFF_ALIGNMENT_FIELD_EMPTY ((unsigned int) -1)
535
 
536
  /* The desired alignment for this section (as a power of two).  */
537
  unsigned int alignment_power;
538
};
539
 
540
extern struct bfd_hash_entry *_bfd_coff_link_hash_newfunc
541
  (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
542
extern bfd_boolean _bfd_coff_link_hash_table_init
543
  (struct coff_link_hash_table *, bfd *,
544
   struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
545
                               struct bfd_hash_table *,
546
                               const char *),
547
   unsigned int);
548
extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create
549
  (bfd *);
550
extern const char *_bfd_coff_internal_syment_name
551
  (bfd *, const struct internal_syment *, char *);
552
extern bfd_boolean _bfd_coff_link_add_symbols
553
  (bfd *, struct bfd_link_info *);
554
extern bfd_boolean _bfd_coff_final_link
555
  (bfd *, struct bfd_link_info *);
556
extern struct internal_reloc *_bfd_coff_read_internal_relocs
557
  (bfd *, asection *, bfd_boolean, bfd_byte *, bfd_boolean,
558
   struct internal_reloc *);
559
extern bfd_boolean _bfd_coff_generic_relocate_section
560
  (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
561
   struct internal_reloc *, struct internal_syment *, asection **);
562
extern struct bfd_hash_entry *_bfd_coff_debug_merge_hash_newfunc
563
  (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
564
extern bfd_boolean _bfd_coff_write_global_sym
565
  (struct coff_link_hash_entry *, void *);
566
extern bfd_boolean _bfd_coff_write_task_globals
567
  (struct coff_link_hash_entry *, void *);
568
extern bfd_boolean _bfd_coff_link_input_bfd
569
  (struct coff_final_link_info *, bfd *);
570
extern bfd_boolean _bfd_coff_reloc_link_order
571
  (bfd *, struct coff_final_link_info *, asection *,
572
   struct bfd_link_order *);
573
 
574
 
575
#define coff_get_section_contents_in_window \
576
  _bfd_generic_get_section_contents_in_window
577
 
578
/* Functions in xcofflink.c.  */
579
 
580
extern long _bfd_xcoff_get_dynamic_symtab_upper_bound
581
  (bfd *);
582
extern long _bfd_xcoff_canonicalize_dynamic_symtab
583
  (bfd *, asymbol **);
584
extern long _bfd_xcoff_get_dynamic_reloc_upper_bound
585
  (bfd *);
586
extern long _bfd_xcoff_canonicalize_dynamic_reloc
587
  (bfd *, arelent **, asymbol **);
588
extern struct bfd_link_hash_table *_bfd_xcoff_bfd_link_hash_table_create
589
  (bfd *);
590
extern void _bfd_xcoff_bfd_link_hash_table_free
591
  (struct bfd_link_hash_table *);
592
extern bfd_boolean _bfd_xcoff_bfd_link_add_symbols
593
  (bfd *, struct bfd_link_info *);
594
extern bfd_boolean _bfd_xcoff_bfd_final_link
595
  (bfd *, struct bfd_link_info *);
596
extern bfd_boolean _bfd_ppc_xcoff_relocate_section
597
  (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
598
   struct internal_reloc *, struct internal_syment *, asection **);
599
 
600
/* Functions in coff-ppc.c.  FIXME: These are called be pe.em in the
601
   linker, and so should start with bfd and be declared in bfd.h.  */
602
 
603
extern bfd_boolean ppc_allocate_toc_section
604
  (struct bfd_link_info *);
605
extern bfd_boolean ppc_process_before_allocation
606
  (bfd *, struct bfd_link_info *);
607
 
608
/* Extracted from coffcode.h.  */
609
typedef struct coff_ptr_struct
610
{
611
  /* Remembers the offset from the first symbol in the file for
612
     this symbol. Generated by coff_renumber_symbols. */
613
  unsigned int offset;
614
 
615
  /* Should the value of this symbol be renumbered.  Used for
616
     XCOFF C_BSTAT symbols.  Set by coff_slurp_symbol_table.  */
617
  unsigned int fix_value : 1;
618
 
619
  /* Should the tag field of this symbol be renumbered.
620
     Created by coff_pointerize_aux. */
621
  unsigned int fix_tag : 1;
622
 
623
  /* Should the endidx field of this symbol be renumbered.
624
     Created by coff_pointerize_aux. */
625
  unsigned int fix_end : 1;
626
 
627
  /* Should the x_csect.x_scnlen field be renumbered.
628
     Created by coff_pointerize_aux. */
629
  unsigned int fix_scnlen : 1;
630
 
631
  /* Fix up an XCOFF C_BINCL/C_EINCL symbol.  The value is the
632
     index into the line number entries.  Set by coff_slurp_symbol_table.  */
633
  unsigned int fix_line : 1;
634
 
635
  /* The container for the symbol structure as read and translated
636
     from the file. */
637
  union
638
  {
639
    union internal_auxent auxent;
640
    struct internal_syment syment;
641
  } u;
642
} combined_entry_type;
643
 
644
 
645
/* Each canonical asymbol really looks like this: */
646
 
647
typedef struct coff_symbol_struct
648
{
649
  /* The actual symbol which the rest of BFD works with */
650
  asymbol symbol;
651
 
652
  /* A pointer to the hidden information for this symbol */
653
  combined_entry_type *native;
654
 
655
  /* A pointer to the linenumber information for this symbol */
656
  struct lineno_cache_entry *lineno;
657
 
658
  /* Have the line numbers been relocated yet ? */
659
  bfd_boolean done_lineno;
660
} coff_symbol_type;
661
/* COFF symbol classifications.  */
662
 
663
enum coff_symbol_classification
664
{
665
  /* Global symbol.  */
666
  COFF_SYMBOL_GLOBAL,
667
  /* Common symbol.  */
668
  COFF_SYMBOL_COMMON,
669
  /* Undefined symbol.  */
670
  COFF_SYMBOL_UNDEFINED,
671
  /* Local symbol.  */
672
  COFF_SYMBOL_LOCAL,
673
  /* PE section symbol.  */
674
  COFF_SYMBOL_PE_SECTION
675
};
676
 
677
typedef struct
678
{
679
  void (*_bfd_coff_swap_aux_in)
680
    (bfd *, void *, int, int, int, int, void *);
681
 
682
  void (*_bfd_coff_swap_sym_in)
683
    (bfd *, void *, void *);
684
 
685
  void (*_bfd_coff_swap_lineno_in)
686
    (bfd *, void *, void *);
687
 
688
  unsigned int (*_bfd_coff_swap_aux_out)
689
    (bfd *, void *, int, int, int, int, void *);
690
 
691
  unsigned int (*_bfd_coff_swap_sym_out)
692
    (bfd *, void *, void *);
693
 
694
  unsigned int (*_bfd_coff_swap_lineno_out)
695
    (bfd *, void *, void *);
696
 
697
  unsigned int (*_bfd_coff_swap_reloc_out)
698
    (bfd *, void *, void *);
699
 
700
  unsigned int (*_bfd_coff_swap_filehdr_out)
701
    (bfd *, void *, void *);
702
 
703
  unsigned int (*_bfd_coff_swap_aouthdr_out)
704
    (bfd *, void *, void *);
705
 
706
  unsigned int (*_bfd_coff_swap_scnhdr_out)
707
    (bfd *, void *, void *);
708
 
709
  unsigned int _bfd_filhsz;
710
  unsigned int _bfd_aoutsz;
711
  unsigned int _bfd_scnhsz;
712
  unsigned int _bfd_symesz;
713
  unsigned int _bfd_auxesz;
714
  unsigned int _bfd_relsz;
715
  unsigned int _bfd_linesz;
716
  unsigned int _bfd_filnmlen;
717
  bfd_boolean _bfd_coff_long_filenames;
718
  bfd_boolean _bfd_coff_long_section_names;
719
  unsigned int _bfd_coff_default_section_alignment_power;
720
  bfd_boolean _bfd_coff_force_symnames_in_strings;
721
  unsigned int _bfd_coff_debug_string_prefix_length;
722
 
723
  void (*_bfd_coff_swap_filehdr_in)
724
    (bfd *, void *, void *);
725
 
726
  void (*_bfd_coff_swap_aouthdr_in)
727
    (bfd *, void *, void *);
728
 
729
  void (*_bfd_coff_swap_scnhdr_in)
730
    (bfd *, void *, void *);
731
 
732
  void (*_bfd_coff_swap_reloc_in)
733
    (bfd *abfd, void *, void *);
734
 
735
  bfd_boolean (*_bfd_coff_bad_format_hook)
736
    (bfd *, void *);
737
 
738
  bfd_boolean (*_bfd_coff_set_arch_mach_hook)
739
    (bfd *, void *);
740
 
741
  void * (*_bfd_coff_mkobject_hook)
742
    (bfd *, void *, void *);
743
 
744
  bfd_boolean (*_bfd_styp_to_sec_flags_hook)
745
    (bfd *, void *, const char *, asection *, flagword *);
746
 
747
  void (*_bfd_set_alignment_hook)
748
    (bfd *, asection *, void *);
749
 
750
  bfd_boolean (*_bfd_coff_slurp_symbol_table)
751
    (bfd *);
752
 
753
  bfd_boolean (*_bfd_coff_symname_in_debug)
754
    (bfd *, struct internal_syment *);
755
 
756
  bfd_boolean (*_bfd_coff_pointerize_aux_hook)
757
    (bfd *, combined_entry_type *, combined_entry_type *,
758
            unsigned int, combined_entry_type *);
759
 
760
  bfd_boolean (*_bfd_coff_print_aux)
761
    (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
762
            combined_entry_type *, unsigned int);
763
 
764
  void (*_bfd_coff_reloc16_extra_cases)
765
    (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
766
           bfd_byte *, unsigned int *, unsigned int *);
767
 
768
  int (*_bfd_coff_reloc16_estimate)
769
    (bfd *, asection *, arelent *, unsigned int,
770
            struct bfd_link_info *);
771
 
772
  enum coff_symbol_classification (*_bfd_coff_classify_symbol)
773
    (bfd *, struct internal_syment *);
774
 
775
  bfd_boolean (*_bfd_coff_compute_section_file_positions)
776
    (bfd *);
777
 
778
  bfd_boolean (*_bfd_coff_start_final_link)
779
    (bfd *, struct bfd_link_info *);
780
 
781
  bfd_boolean (*_bfd_coff_relocate_section)
782
    (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
783
            struct internal_reloc *, struct internal_syment *, asection **);
784
 
785
  reloc_howto_type *(*_bfd_coff_rtype_to_howto)
786
    (bfd *, asection *, struct internal_reloc *,
787
            struct coff_link_hash_entry *, struct internal_syment *,
788
            bfd_vma *);
789
 
790
  bfd_boolean (*_bfd_coff_adjust_symndx)
791
    (bfd *, struct bfd_link_info *, bfd *, asection *,
792
            struct internal_reloc *, bfd_boolean *);
793
 
794
  bfd_boolean (*_bfd_coff_link_add_one_symbol)
795
    (struct bfd_link_info *, bfd *, const char *, flagword,
796
            asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
797
            struct bfd_link_hash_entry **);
798
 
799
  bfd_boolean (*_bfd_coff_link_output_has_begun)
800
    (bfd *, struct coff_final_link_info *);
801
 
802
  bfd_boolean (*_bfd_coff_final_link_postscript)
803
    (bfd *, struct coff_final_link_info *);
804
 
805
} bfd_coff_backend_data;
806
 
807
#define coff_backend_info(abfd) \
808
  ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
809
 
810
#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
811
  ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
812
 
813
#define bfd_coff_swap_sym_in(a,e,i) \
814
  ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
815
 
816
#define bfd_coff_swap_lineno_in(a,e,i) \
817
  ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
818
 
819
#define bfd_coff_swap_reloc_out(abfd, i, o) \
820
  ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
821
 
822
#define bfd_coff_swap_lineno_out(abfd, i, o) \
823
  ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
824
 
825
#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
826
  ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
827
 
828
#define bfd_coff_swap_sym_out(abfd, i,o) \
829
  ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
830
 
831
#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
832
  ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
833
 
834
#define bfd_coff_swap_filehdr_out(abfd, i,o) \
835
  ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
836
 
837
#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
838
  ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
839
 
840
#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
841
#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
842
#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
843
#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
844
#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
845
#define bfd_coff_relsz(abfd)  (coff_backend_info (abfd)->_bfd_relsz)
846
#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
847
#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
848
#define bfd_coff_long_filenames(abfd) \
849
  (coff_backend_info (abfd)->_bfd_coff_long_filenames)
850
#define bfd_coff_long_section_names(abfd) \
851
  (coff_backend_info (abfd)->_bfd_coff_long_section_names)
852
#define bfd_coff_default_section_alignment_power(abfd) \
853
  (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
854
#define bfd_coff_swap_filehdr_in(abfd, i,o) \
855
  ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
856
 
857
#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
858
  ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
859
 
860
#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
861
  ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
862
 
863
#define bfd_coff_swap_reloc_in(abfd, i, o) \
864
  ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
865
 
866
#define bfd_coff_bad_format_hook(abfd, filehdr) \
867
  ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
868
 
869
#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
870
  ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
871
#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
872
  ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
873
   (abfd, filehdr, aouthdr))
874
 
875
#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
876
  ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
877
   (abfd, scnhdr, name, section, flags_ptr))
878
 
879
#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
880
  ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
881
 
882
#define bfd_coff_slurp_symbol_table(abfd)\
883
  ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
884
 
885
#define bfd_coff_symname_in_debug(abfd, sym)\
886
  ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
887
 
888
#define bfd_coff_force_symnames_in_strings(abfd)\
889
  (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
890
 
891
#define bfd_coff_debug_string_prefix_length(abfd)\
892
  (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
893
 
894
#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
895
  ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
896
   (abfd, file, base, symbol, aux, indaux))
897
 
898
#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
899
                                     reloc, data, src_ptr, dst_ptr)\
900
  ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
901
   (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
902
 
903
#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
904
  ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
905
   (abfd, section, reloc, shrink, link_info))
906
 
907
#define bfd_coff_classify_symbol(abfd, sym)\
908
  ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
909
   (abfd, sym))
910
 
911
#define bfd_coff_compute_section_file_positions(abfd)\
912
  ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
913
   (abfd))
914
 
915
#define bfd_coff_start_final_link(obfd, info)\
916
  ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
917
   (obfd, info))
918
#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
919
  ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
920
   (obfd, info, ibfd, o, con, rel, isyms, secs))
921
#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
922
  ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
923
   (abfd, sec, rel, h, sym, addendp))
924
#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
925
  ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
926
   (obfd, info, ibfd, sec, rel, adjustedp))
927
#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
928
                                     value, string, cp, coll, hashp)\
929
  ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
930
   (info, abfd, name, flags, section, value, string, cp, coll, hashp))
931
 
932
#define bfd_coff_link_output_has_begun(a,p) \
933
  ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
934
#define bfd_coff_final_link_postscript(a,p) \
935
  ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
936
 

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