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[/] [or1k/] [trunk/] [gdb-5.3/] [bfd/] [libcoff.h] - Blame information for rev 1765

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1 1181 sfurman
/* 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
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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
26
 
27
#include "bfdlink.h"
28
 
29
/* Object file tdata; access macros */
30
 
31
#define coff_data(bfd)          ((bfd)->tdata.coff_obj_data)
32
#define exec_hdr(bfd)           (coff_data(bfd)->hdr)
33
#define obj_pe(bfd)             (coff_data(bfd)->pe)
34
#define obj_symbols(bfd)        (coff_data(bfd)->symbols)
35
#define obj_sym_filepos(bfd)    (coff_data(bfd)->sym_filepos)
36
 
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
 
43
#define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms)
44
#define obj_coff_keep_syms(bfd) (coff_data (bfd)->keep_syms)
45
#define obj_coff_strings(bfd)   (coff_data (bfd)->strings)
46
#define obj_coff_keep_strings(bfd) (coff_data (bfd)->keep_strings)
47
#define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes)
48
#define obj_coff_strings_written(bfd) (coff_data (bfd)->strings_written)
49
 
50
#define obj_coff_local_toc_table(bfd) (coff_data(bfd)->local_toc_sym_map)
51
 
52
/* `Tdata' information kept for COFF files.  */
53
 
54
typedef struct coff_tdata
55
{
56
  struct   coff_symbol_struct *symbols; /* symtab for input bfd */
57
  unsigned int *conversion_table;
58
  int conv_table_size;
59
  file_ptr sym_filepos;
60
 
61
  struct coff_ptr_struct *raw_syments;
62
  unsigned long raw_syment_count;
63
 
64
  /* These are only valid once writing has begun */
65
  long int relocbase;
66
 
67
  /* These members communicate important constants about the symbol table
68
     to GDB's symbol-reading code.  These `constants' unfortunately vary
69
     from coff implementation to implementation...  */
70
  unsigned local_n_btmask;
71
  unsigned local_n_btshft;
72
  unsigned local_n_tmask;
73
  unsigned local_n_tshift;
74
  unsigned local_symesz;
75
  unsigned local_auxesz;
76
  unsigned local_linesz;
77
 
78
  /* The unswapped external symbols.  May be NULL.  Read by
79
     _bfd_coff_get_external_symbols.  */
80
  PTR external_syms;
81
  /* If this is true, the external_syms may not be freed.  */
82
  boolean keep_syms;
83
 
84
  /* The string table.  May be NULL.  Read by
85
     _bfd_coff_read_string_table.  */
86
  char *strings;
87
  /* If this is true, the strings may not be freed.  */
88
  boolean keep_strings;
89
  /* If this is true, the strings have been written out already.  */
90
  boolean strings_written;
91
 
92
  /* is this a PE format coff file */
93
  int pe;
94
  /* Used by the COFF backend linker.  */
95
  struct coff_link_hash_entry **sym_hashes;
96
 
97
  /* used by the pe linker for PowerPC */
98
  int *local_toc_sym_map;
99
 
100
  struct bfd_link_info *link_info;
101
 
102
  /* Used by coff_find_nearest_line.  */
103
  PTR line_info;
104
 
105
  /* A place to stash dwarf2 info for this bfd. */
106
  PTR dwarf2_find_line_info;
107
 
108
  /* The timestamp from the COFF file header.  */
109
  long timestamp;
110
 
111
  /* Copy of some of the f_flags bits in the COFF filehdr structure,
112
     used by ARM code.  */
113
  flagword flags;
114
 
115
} coff_data_type;
116
 
117
/* Tdata for pe image files. */
118
typedef struct pe_tdata
119
{
120
  coff_data_type coff;
121
  struct internal_extra_pe_aouthdr pe_opthdr;
122
  int dll;
123
  int has_reloc_section;
124
  boolean (*in_reloc_p) PARAMS((bfd *, reloc_howto_type *));
125
  flagword real_flags;
126
  int target_subsystem;
127
  boolean force_minimum_alignment;
128
} pe_data_type;
129
 
130
#define pe_data(bfd)            ((bfd)->tdata.pe_obj_data)
131
 
132
/* Tdata for XCOFF files.  */
133
 
134
struct xcoff_tdata
135
{
136
  /* Basic COFF information.  */
137
  coff_data_type coff;
138
 
139
  /* True if this is an XCOFF64 file. */
140
  boolean xcoff64;
141
 
142
  /* True if a large a.out header should be generated.  */
143
  boolean full_aouthdr;
144
 
145
  /* TOC value.  */
146
  bfd_vma toc;
147
 
148
  /* Index of section holding TOC.  */
149
  int sntoc;
150
 
151
  /* Index of section holding entry point.  */
152
  int snentry;
153
 
154
  /* .text alignment from optional header.  */
155
  int text_align_power;
156
 
157
  /* .data alignment from optional header.  */
158
  int data_align_power;
159
 
160
  /* modtype from optional header.  */
161
  short modtype;
162
 
163
  /* cputype from optional header.  */
164
  short cputype;
165
 
166
  /* maxdata from optional header.  */
167
  bfd_vma maxdata;
168
 
169
  /* maxstack from optional header.  */
170
  bfd_vma maxstack;
171
 
172
  /* Used by the XCOFF backend linker.  */
173
  asection **csects;
174
  unsigned long *debug_indices;
175
  unsigned int import_file_id;
176
};
177
 
178
#define xcoff_data(abfd) ((abfd)->tdata.xcoff_obj_data)
179
 
180
/* We take the address of the first element of an asymbol to ensure that the
181
 * macro is only ever applied to an asymbol.  */
182
#define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
183
 
184
/* The used_by_bfd field of a section may be set to a pointer to this
185
   structure.  */
186
 
187
struct coff_section_tdata
188
{
189
  /* The relocs, swapped into COFF internal form.  This may be NULL.  */
190
  struct internal_reloc *relocs;
191
  /* If this is true, the relocs entry may not be freed.  */
192
  boolean keep_relocs;
193
  /* The section contents.  This may be NULL.  */
194
  bfd_byte *contents;
195
  /* If this is true, the contents entry may not be freed.  */
196
  boolean keep_contents;
197
  /* Information cached by coff_find_nearest_line.  */
198
  bfd_vma offset;
199
  unsigned int i;
200
  const char *function;
201
  int line_base;
202
  /* A pointer used for .stab linking optimizations.  */
203
  PTR stab_info;
204
  /* Available for individual backends.  */
205
  PTR 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
  PTR 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
    (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (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
  PARAMS ((bfd *));
308
extern struct sec *coff_section_from_bfd_index
309
  PARAMS ((bfd *, int));
310
extern long coff_get_symtab_upper_bound
311
  PARAMS ((bfd *));
312
extern long coff_get_symtab
313
  PARAMS ((bfd *, asymbol **));
314
extern int coff_count_linenumbers
315
  PARAMS ((bfd *));
316
extern struct coff_symbol_struct *coff_symbol_from
317
  PARAMS ((bfd *, asymbol *));
318
extern boolean coff_renumber_symbols
319
  PARAMS ((bfd *, int *));
320
extern void coff_mangle_symbols
321
  PARAMS ((bfd *));
322
extern boolean coff_write_symbols
323
  PARAMS ((bfd *));
324
extern boolean coff_write_linenumbers
325
  PARAMS ((bfd *));
326
extern alent *coff_get_lineno
327
  PARAMS ((bfd *, asymbol *));
328
extern asymbol *coff_section_symbol
329
  PARAMS ((bfd *, char *));
330
extern boolean _bfd_coff_get_external_symbols
331
  PARAMS ((bfd *));
332
extern const char *_bfd_coff_read_string_table
333
  PARAMS ((bfd *));
334
extern boolean _bfd_coff_free_symbols
335
  PARAMS ((bfd *));
336
extern struct coff_ptr_struct *coff_get_normalized_symtab
337
  PARAMS ((bfd *));
338
extern long coff_get_reloc_upper_bound
339
  PARAMS ((bfd *, sec_ptr));
340
extern asymbol *coff_make_empty_symbol
341
  PARAMS ((bfd *));
342
extern void coff_print_symbol
343
  PARAMS ((bfd *, PTR filep, asymbol *, bfd_print_symbol_type));
344
extern void coff_get_symbol_info
345
  PARAMS ((bfd *, asymbol *, symbol_info *ret));
346
extern boolean _bfd_coff_is_local_label_name
347
  PARAMS ((bfd *, const char *));
348
extern asymbol *coff_bfd_make_debug_symbol
349
  PARAMS ((bfd *, PTR, unsigned long));
350
extern boolean coff_find_nearest_line
351
  PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **,
352
           const char **, unsigned int *));
353
extern int coff_sizeof_headers
354
  PARAMS ((bfd *, boolean));
355
extern boolean bfd_coff_reloc16_relax_section
356
  PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
357
extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents
358
  PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
359
           bfd_byte *, boolean, asymbol **));
360
extern bfd_vma bfd_coff_reloc16_get_value
361
   PARAMS ((arelent *, struct bfd_link_info *, asection *));
362
extern void bfd_perform_slip
363
  PARAMS ((bfd *, unsigned int, asection *, bfd_vma));
364
 
365
/* Functions and types in cofflink.c.  */
366
 
367
#define STRING_SIZE_SIZE (4)
368
 
369
/* We use a hash table to merge identical enum, struct, and union
370
   definitions in the linker.  */
371
 
372
/* Information we keep for a single element (an enum value, a
373
   structure or union field) in the debug merge hash table.  */
374
 
375
struct coff_debug_merge_element
376
{
377
  /* Next element.  */
378
  struct coff_debug_merge_element *next;
379
 
380
  /* Name.  */
381
  const char *name;
382
 
383
  /* Type.  */
384
  unsigned int type;
385
 
386
  /* Symbol index for complex type.  */
387
  long tagndx;
388
};
389
 
390
/* A linked list of debug merge entries for a given name.  */
391
 
392
struct coff_debug_merge_type
393
{
394
  /* Next type with the same name.  */
395
  struct coff_debug_merge_type *next;
396
 
397
  /* Class of type.  */
398
  int class;
399
 
400
  /* Symbol index where this type is defined.  */
401
  long indx;
402
 
403
  /* List of elements.  */
404
  struct coff_debug_merge_element *elements;
405
};
406
 
407
/* Information we store in the debug merge hash table.  */
408
 
409
struct coff_debug_merge_hash_entry
410
{
411
  struct bfd_hash_entry root;
412
 
413
  /* A list of types with this name.  */
414
  struct coff_debug_merge_type *types;
415
};
416
 
417
/* The debug merge hash table.  */
418
 
419
struct coff_debug_merge_hash_table
420
{
421
  struct bfd_hash_table root;
422
};
423
 
424
/* Initialize a COFF debug merge hash table.  */
425
 
426
#define coff_debug_merge_hash_table_init(table) \
427
  (bfd_hash_table_init (&(table)->root, _bfd_coff_debug_merge_hash_newfunc))
428
 
429
/* Free a COFF debug merge hash table.  */
430
 
431
#define coff_debug_merge_hash_table_free(table) \
432
  (bfd_hash_table_free (&(table)->root))
433
 
434
/* Look up an entry in a COFF debug merge hash table.  */
435
 
436
#define coff_debug_merge_hash_lookup(table, string, create, copy) \
437
  ((struct coff_debug_merge_hash_entry *) \
438
   bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
439
 
440
/* Information we keep for each section in the output file when doing
441
   a relocateable link.  */
442
 
443
struct coff_link_section_info
444
{
445
  /* The relocs to be output.  */
446
  struct internal_reloc *relocs;
447
  /* For each reloc against a global symbol whose index was not known
448
     when the reloc was handled, the global hash table entry.  */
449
  struct coff_link_hash_entry **rel_hashes;
450
};
451
 
452
/* Information that we pass around while doing the final link step.  */
453
 
454
struct coff_final_link_info
455
{
456
  /* General link information.  */
457
  struct bfd_link_info *info;
458
  /* Output BFD.  */
459
  bfd *output_bfd;
460
  /* Used to indicate failure in traversal routine.  */
461
  boolean failed;
462
  /* If doing "task linking" set only during the time when we want the
463
     global symbol writer to convert the storage class of defined global
464
     symbols from global to static. */
465
  boolean global_to_static;
466
  /* Hash table for long symbol names.  */
467
  struct bfd_strtab_hash *strtab;
468
  /* When doing a relocateable link, an array of information kept for
469
     each output section, indexed by the target_index field.  */
470
  struct coff_link_section_info *section_info;
471
  /* Symbol index of last C_FILE symbol (-1 if none).  */
472
  long last_file_index;
473
  /* Contents of last C_FILE symbol.  */
474
  struct internal_syment last_file;
475
  /* Symbol index of first aux entry of last .bf symbol with an empty
476
     endndx field (-1 if none).  */
477
  long last_bf_index;
478
  /* Contents of last_bf_index aux entry.  */
479
  union internal_auxent last_bf;
480
  /* Hash table used to merge debug information.  */
481
  struct coff_debug_merge_hash_table debug_merge;
482
  /* Buffer large enough to hold swapped symbols of any input file.  */
483
  struct internal_syment *internal_syms;
484
  /* Buffer large enough to hold sections of symbols of any input file.  */
485
  asection **sec_ptrs;
486
  /* Buffer large enough to hold output indices of symbols of any
487
     input file.  */
488
  long *sym_indices;
489
  /* Buffer large enough to hold output symbols for any input file.  */
490
  bfd_byte *outsyms;
491
  /* Buffer large enough to hold external line numbers for any input
492
     section.  */
493
  bfd_byte *linenos;
494
  /* Buffer large enough to hold any input section.  */
495
  bfd_byte *contents;
496
  /* Buffer large enough to hold external relocs of any input section.  */
497
  bfd_byte *external_relocs;
498
  /* Buffer large enough to hold swapped relocs of any input section.  */
499
  struct internal_reloc *internal_relocs;
500
};
501
 
502
/* Most COFF variants have no way to record the alignment of a
503
   section.  This struct is used to set a specific alignment based on
504
   the name of the section.  */
505
 
506
struct coff_section_alignment_entry
507
{
508
  /* The section name.  */
509
  const char *name;
510
 
511
  /* This is either (unsigned int) -1, indicating that the section
512
     name must match exactly, or it is the number of letters which
513
     must match at the start of the name.  */
514
  unsigned int comparison_length;
515
 
516
  /* These macros may be used to fill in the first two fields in a
517
     structure initialization.  */
518
#define COFF_SECTION_NAME_EXACT_MATCH(name) (name), ((unsigned int) -1)
519
#define COFF_SECTION_NAME_PARTIAL_MATCH(name) (name), (sizeof (name) - 1)
520
 
521
  /* Only use this entry if the default section alignment for this
522
     target is at least that much (as a power of two).  If this field
523
     is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored.  */
524
  unsigned int default_alignment_min;
525
 
526
  /* Only use this entry if the default section alignment for this
527
     target is no greater than this (as a power of two).  If this
528
     field is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored.  */
529
  unsigned int default_alignment_max;
530
 
531
#define COFF_ALIGNMENT_FIELD_EMPTY ((unsigned int) -1)
532
 
533
  /* The desired alignment for this section (as a power of two).  */
534
  unsigned int alignment_power;
535
};
536
 
537
extern struct bfd_hash_entry *_bfd_coff_link_hash_newfunc
538
  PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
539
extern boolean _bfd_coff_link_hash_table_init
540
  PARAMS ((struct coff_link_hash_table *, bfd *,
541
           struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
542
                                       struct bfd_hash_table *,
543
                                       const char *)));
544
extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create
545
  PARAMS ((bfd *));
546
extern const char *_bfd_coff_internal_syment_name
547
  PARAMS ((bfd *, const struct internal_syment *, char *));
548
extern boolean _bfd_coff_link_add_symbols
549
  PARAMS ((bfd *, struct bfd_link_info *));
550
extern boolean _bfd_coff_final_link
551
  PARAMS ((bfd *, struct bfd_link_info *));
552
extern struct internal_reloc *_bfd_coff_read_internal_relocs
553
  PARAMS ((bfd *, asection *, boolean, bfd_byte *, boolean,
554
           struct internal_reloc *));
555
extern boolean _bfd_coff_generic_relocate_section
556
  PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
557
           struct internal_reloc *, struct internal_syment *, asection **));
558
 
559
extern struct bfd_hash_entry *_bfd_coff_debug_merge_hash_newfunc
560
  PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
561
extern boolean _bfd_coff_write_global_sym
562
  PARAMS ((struct coff_link_hash_entry *, PTR));
563
extern boolean _bfd_coff_write_task_globals
564
  PARAMS ((struct coff_link_hash_entry *, PTR));
565
extern boolean _bfd_coff_link_input_bfd
566
  PARAMS ((struct coff_final_link_info *, bfd *));
567
extern boolean _bfd_coff_reloc_link_order
568
  PARAMS ((bfd *, struct coff_final_link_info *, asection *,
569
           struct bfd_link_order *));
570
 
571
 
572
#define coff_get_section_contents_in_window \
573
  _bfd_generic_get_section_contents_in_window
574
 
575
/* Functions in xcofflink.c.  */
576
 
577
extern long _bfd_xcoff_get_dynamic_symtab_upper_bound
578
  PARAMS ((bfd *));
579
extern long _bfd_xcoff_canonicalize_dynamic_symtab
580
  PARAMS ((bfd *, asymbol **));
581
extern long _bfd_xcoff_get_dynamic_reloc_upper_bound
582
  PARAMS ((bfd *));
583
extern long _bfd_xcoff_canonicalize_dynamic_reloc
584
  PARAMS ((bfd *, arelent **, asymbol **));
585
extern struct bfd_link_hash_table *_bfd_xcoff_bfd_link_hash_table_create
586
  PARAMS ((bfd *));
587
extern void _bfd_xcoff_bfd_link_hash_table_free
588
  PARAMS ((struct bfd_link_hash_table *));
589
extern boolean _bfd_xcoff_bfd_link_add_symbols
590
  PARAMS ((bfd *, struct bfd_link_info *));
591
extern boolean _bfd_xcoff_bfd_final_link
592
  PARAMS ((bfd *, struct bfd_link_info *));
593
extern boolean _bfd_ppc_xcoff_relocate_section
594
  PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
595
           struct internal_reloc *, struct internal_syment *, asection **));
596
 
597
/* Functions in coff-ppc.c.  FIXME: These are called be pe.em in the
598
   linker, and so should start with bfd and be declared in bfd.h.  */
599
 
600
extern boolean ppc_allocate_toc_section
601
  PARAMS ((struct bfd_link_info *));
602
extern boolean ppc_process_before_allocation
603
  PARAMS ((bfd *, struct bfd_link_info *));
604
 
605
/* Extracted from coffcode.h.  */
606
typedef struct coff_ptr_struct
607
{
608
  /* Remembers the offset from the first symbol in the file for
609
     this symbol. Generated by coff_renumber_symbols. */
610
  unsigned int offset;
611
 
612
  /* Should the value of this symbol be renumbered.  Used for
613
     XCOFF C_BSTAT symbols.  Set by coff_slurp_symbol_table.  */
614
  unsigned int fix_value : 1;
615
 
616
  /* Should the tag field of this symbol be renumbered.
617
     Created by coff_pointerize_aux. */
618
  unsigned int fix_tag : 1;
619
 
620
  /* Should the endidx field of this symbol be renumbered.
621
     Created by coff_pointerize_aux. */
622
  unsigned int fix_end : 1;
623
 
624
  /* Should the x_csect.x_scnlen field be renumbered.
625
     Created by coff_pointerize_aux. */
626
  unsigned int fix_scnlen : 1;
627
 
628
  /* Fix up an XCOFF C_BINCL/C_EINCL symbol.  The value is the
629
     index into the line number entries.  Set by coff_slurp_symbol_table.  */
630
  unsigned int fix_line : 1;
631
 
632
  /* The container for the symbol structure as read and translated
633
     from the file. */
634
  union
635
  {
636
    union internal_auxent auxent;
637
    struct internal_syment syment;
638
  } u;
639
} combined_entry_type;
640
 
641
 
642
/* Each canonical asymbol really looks like this: */
643
 
644
typedef struct coff_symbol_struct
645
{
646
  /* The actual symbol which the rest of BFD works with */
647
  asymbol symbol;
648
 
649
  /* A pointer to the hidden information for this symbol */
650
  combined_entry_type *native;
651
 
652
  /* A pointer to the linenumber information for this symbol */
653
  struct lineno_cache_entry *lineno;
654
 
655
  /* Have the line numbers been relocated yet ? */
656
  boolean done_lineno;
657
} coff_symbol_type;
658
/* COFF symbol classifications.  */
659
 
660
enum coff_symbol_classification
661
{
662
  /* Global symbol.  */
663
  COFF_SYMBOL_GLOBAL,
664
  /* Common symbol.  */
665
  COFF_SYMBOL_COMMON,
666
  /* Undefined symbol.  */
667
  COFF_SYMBOL_UNDEFINED,
668
  /* Local symbol.  */
669
  COFF_SYMBOL_LOCAL,
670
  /* PE section symbol.  */
671
  COFF_SYMBOL_PE_SECTION
672
};
673
 
674
typedef struct
675
{
676
  void (*_bfd_coff_swap_aux_in)
677
    PARAMS ((bfd *, PTR, int, int, int, int, PTR));
678
 
679
  void (*_bfd_coff_swap_sym_in)
680
    PARAMS ((bfd *, PTR, PTR));
681
 
682
  void (*_bfd_coff_swap_lineno_in)
683
    PARAMS ((bfd *, PTR, PTR));
684
 
685
  unsigned int (*_bfd_coff_swap_aux_out)
686
    PARAMS ((bfd *, PTR, int, int, int, int, PTR));
687
 
688
  unsigned int (*_bfd_coff_swap_sym_out)
689
    PARAMS ((bfd *, PTR, PTR));
690
 
691
  unsigned int (*_bfd_coff_swap_lineno_out)
692
    PARAMS ((bfd *, PTR, PTR));
693
 
694
  unsigned int (*_bfd_coff_swap_reloc_out)
695
    PARAMS ((bfd *, PTR, PTR));
696
 
697
  unsigned int (*_bfd_coff_swap_filehdr_out)
698
    PARAMS ((bfd *, PTR, PTR));
699
 
700
  unsigned int (*_bfd_coff_swap_aouthdr_out)
701
    PARAMS ((bfd *, PTR, PTR));
702
 
703
  unsigned int (*_bfd_coff_swap_scnhdr_out)
704
    PARAMS ((bfd *, PTR, PTR));
705
 
706
  unsigned int _bfd_filhsz;
707
  unsigned int _bfd_aoutsz;
708
  unsigned int _bfd_scnhsz;
709
  unsigned int _bfd_symesz;
710
  unsigned int _bfd_auxesz;
711
  unsigned int _bfd_relsz;
712
  unsigned int _bfd_linesz;
713
  unsigned int _bfd_filnmlen;
714
  boolean _bfd_coff_long_filenames;
715
  boolean _bfd_coff_long_section_names;
716
  unsigned int _bfd_coff_default_section_alignment_power;
717
  boolean _bfd_coff_force_symnames_in_strings;
718
  unsigned int _bfd_coff_debug_string_prefix_length;
719
 
720
  void (*_bfd_coff_swap_filehdr_in)
721
    PARAMS ((bfd *, PTR, PTR));
722
 
723
  void (*_bfd_coff_swap_aouthdr_in)
724
    PARAMS ((bfd *, PTR, PTR));
725
 
726
  void (*_bfd_coff_swap_scnhdr_in)
727
    PARAMS ((bfd *, PTR, PTR));
728
 
729
  void (*_bfd_coff_swap_reloc_in)
730
    PARAMS ((bfd *abfd, PTR, PTR));
731
 
732
  boolean (*_bfd_coff_bad_format_hook)
733
    PARAMS ((bfd *, PTR));
734
 
735
  boolean (*_bfd_coff_set_arch_mach_hook)
736
    PARAMS ((bfd *, PTR));
737
 
738
  PTR (*_bfd_coff_mkobject_hook)
739
    PARAMS ((bfd *, PTR, PTR));
740
 
741
  boolean (*_bfd_styp_to_sec_flags_hook)
742
    PARAMS ((bfd *, PTR, const char *, asection *, flagword *));
743
 
744
  void (*_bfd_set_alignment_hook)
745
    PARAMS ((bfd *, asection *, PTR));
746
 
747
  boolean (*_bfd_coff_slurp_symbol_table)
748
    PARAMS ((bfd *));
749
 
750
  boolean (*_bfd_coff_symname_in_debug)
751
    PARAMS ((bfd *, struct internal_syment *));
752
 
753
  boolean (*_bfd_coff_pointerize_aux_hook)
754
    PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
755
            unsigned int, combined_entry_type *));
756
 
757
  boolean (*_bfd_coff_print_aux)
758
    PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *,
759
            combined_entry_type *, unsigned int));
760
 
761
  void (*_bfd_coff_reloc16_extra_cases)
762
    PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
763
           bfd_byte *, unsigned int *, unsigned int *));
764
 
765
  int (*_bfd_coff_reloc16_estimate)
766
    PARAMS ((bfd *, asection *, arelent *, unsigned int,
767
            struct bfd_link_info *));
768
 
769
  enum coff_symbol_classification (*_bfd_coff_classify_symbol)
770
    PARAMS ((bfd *, struct internal_syment *));
771
 
772
  boolean (*_bfd_coff_compute_section_file_positions)
773
    PARAMS ((bfd *));
774
 
775
  boolean (*_bfd_coff_start_final_link)
776
    PARAMS ((bfd *, struct bfd_link_info *));
777
 
778
  boolean (*_bfd_coff_relocate_section)
779
    PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
780
            struct internal_reloc *, struct internal_syment *, asection **));
781
 
782
  reloc_howto_type *(*_bfd_coff_rtype_to_howto)
783
    PARAMS ((bfd *, asection *, struct internal_reloc *,
784
            struct coff_link_hash_entry *, struct internal_syment *,
785
            bfd_vma *));
786
 
787
  boolean (*_bfd_coff_adjust_symndx)\
788
    PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
789
            struct internal_reloc *, boolean *));
790
 
791
  boolean (*_bfd_coff_link_add_one_symbol)
792
    PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword,
793
            asection *, bfd_vma, const char *, boolean, boolean,
794
            struct bfd_link_hash_entry **));
795
 
796
  boolean (*_bfd_coff_link_output_has_begun)
797
    PARAMS ((bfd *, struct coff_final_link_info *));
798
 
799
  boolean (*_bfd_coff_final_link_postscript)
800
    PARAMS ((bfd *, struct coff_final_link_info *));
801
 
802
} bfd_coff_backend_data;
803
 
804
#define coff_backend_info(abfd) \
805
  ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
806
 
807
#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
808
  ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
809
 
810
#define bfd_coff_swap_sym_in(a,e,i) \
811
  ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
812
 
813
#define bfd_coff_swap_lineno_in(a,e,i) \
814
  ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
815
 
816
#define bfd_coff_swap_reloc_out(abfd, i, o) \
817
  ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
818
 
819
#define bfd_coff_swap_lineno_out(abfd, i, o) \
820
  ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
821
 
822
#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
823
  ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
824
 
825
#define bfd_coff_swap_sym_out(abfd, i,o) \
826
  ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
827
 
828
#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
829
  ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
830
 
831
#define bfd_coff_swap_filehdr_out(abfd, i,o) \
832
  ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
833
 
834
#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
835
  ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
836
 
837
#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
838
#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
839
#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
840
#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
841
#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
842
#define bfd_coff_relsz(abfd)  (coff_backend_info (abfd)->_bfd_relsz)
843
#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
844
#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
845
#define bfd_coff_long_filenames(abfd) \
846
  (coff_backend_info (abfd)->_bfd_coff_long_filenames)
847
#define bfd_coff_long_section_names(abfd) \
848
  (coff_backend_info (abfd)->_bfd_coff_long_section_names)
849
#define bfd_coff_default_section_alignment_power(abfd) \
850
  (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
851
#define bfd_coff_swap_filehdr_in(abfd, i,o) \
852
  ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
853
 
854
#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
855
  ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
856
 
857
#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
858
  ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
859
 
860
#define bfd_coff_swap_reloc_in(abfd, i, o) \
861
  ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
862
 
863
#define bfd_coff_bad_format_hook(abfd, filehdr) \
864
  ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
865
 
866
#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
867
  ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
868
#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
869
  ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr))
870
 
871
#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
872
  ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
873
   (abfd, scnhdr, name, section, flags_ptr))
874
 
875
#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
876
  ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
877
 
878
#define bfd_coff_slurp_symbol_table(abfd)\
879
  ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
880
 
881
#define bfd_coff_symname_in_debug(abfd, sym)\
882
  ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
883
 
884
#define bfd_coff_force_symnames_in_strings(abfd)\
885
  (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
886
 
887
#define bfd_coff_debug_string_prefix_length(abfd)\
888
  (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
889
 
890
#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
891
  ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
892
   (abfd, file, base, symbol, aux, indaux))
893
 
894
#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
895
  ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
896
   (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
897
 
898
#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
899
  ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
900
   (abfd, section, reloc, shrink, link_info))
901
 
902
#define bfd_coff_classify_symbol(abfd, sym)\
903
  ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
904
   (abfd, sym))
905
 
906
#define bfd_coff_compute_section_file_positions(abfd)\
907
  ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
908
   (abfd))
909
 
910
#define bfd_coff_start_final_link(obfd, info)\
911
  ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
912
   (obfd, info))
913
#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
914
  ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
915
   (obfd, info, ibfd, o, con, rel, isyms, secs))
916
#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
917
  ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
918
   (abfd, sec, rel, h, sym, addendp))
919
#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
920
  ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
921
   (obfd, info, ibfd, sec, rel, adjustedp))
922
#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\
923
  ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
924
   (info, abfd, name, flags, section, value, string, cp, coll, hashp))
925
 
926
#define bfd_coff_link_output_has_begun(a,p) \
927
  ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
928
#define bfd_coff_final_link_postscript(a,p) \
929
  ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))
930
 

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