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[/] [scarts/] [trunk/] [toolchain/] [scarts-binutils/] [binutils-2.19.1/] [bfd/] [coffcode.h] - Blame information for rev 6

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1 6 jlechner
/* Support for the generic parts of most COFF variants, for BFD.
2
   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3
   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4
   Free Software Foundation, Inc.
5
   Written by Cygnus Support.
6
 
7
   This file is part of BFD, the Binary File Descriptor library.
8
 
9
   This program is free software; you can redistribute it and/or modify
10
   it under the terms of the GNU General Public License as published by
11
   the Free Software Foundation; either version 3 of the License, or
12
   (at your option) any later version.
13
 
14
   This program is distributed in the hope that it will be useful,
15
   but WITHOUT ANY WARRANTY; without even the implied warranty of
16
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
   GNU General Public License for more details.
18
 
19
   You should have received a copy of the GNU General Public License
20
   along with this program; if not, write to the Free Software
21
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22
   MA 02110-1301, USA.  */
23
 
24
/* Most of this hacked by  Steve Chamberlain,
25
                        sac@cygnus.com.  */
26
/*
27
SECTION
28
        coff backends
29
 
30
        BFD supports a number of different flavours of coff format.
31
        The major differences between formats are the sizes and
32
        alignments of fields in structures on disk, and the occasional
33
        extra field.
34
 
35
        Coff in all its varieties is implemented with a few common
36
        files and a number of implementation specific files. For
37
        example, The 88k bcs coff format is implemented in the file
38
        @file{coff-m88k.c}. This file @code{#include}s
39
        @file{coff/m88k.h} which defines the external structure of the
40
        coff format for the 88k, and @file{coff/internal.h} which
41
        defines the internal structure. @file{coff-m88k.c} also
42
        defines the relocations used by the 88k format
43
        @xref{Relocations}.
44
 
45
        The Intel i960 processor version of coff is implemented in
46
        @file{coff-i960.c}. This file has the same structure as
47
        @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
48
        rather than @file{coff-m88k.h}.
49
 
50
SUBSECTION
51
        Porting to a new version of coff
52
 
53
        The recommended method is to select from the existing
54
        implementations the version of coff which is most like the one
55
        you want to use.  For example, we'll say that i386 coff is
56
        the one you select, and that your coff flavour is called foo.
57
        Copy @file{i386coff.c} to @file{foocoff.c}, copy
58
        @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
59
        and add the lines to @file{targets.c} and @file{Makefile.in}
60
        so that your new back end is used. Alter the shapes of the
61
        structures in @file{../include/coff/foo.h} so that they match
62
        what you need. You will probably also have to add
63
        @code{#ifdef}s to the code in @file{coff/internal.h} and
64
        @file{coffcode.h} if your version of coff is too wild.
65
 
66
        You can verify that your new BFD backend works quite simply by
67
        building @file{objdump} from the @file{binutils} directory,
68
        and making sure that its version of what's going on and your
69
        host system's idea (assuming it has the pretty standard coff
70
        dump utility, usually called @code{att-dump} or just
71
        @code{dump}) are the same.  Then clean up your code, and send
72
        what you've done to Cygnus. Then your stuff will be in the
73
        next release, and you won't have to keep integrating it.
74
 
75
SUBSECTION
76
        How the coff backend works
77
 
78
SUBSUBSECTION
79
        File layout
80
 
81
        The Coff backend is split into generic routines that are
82
        applicable to any Coff target and routines that are specific
83
        to a particular target.  The target-specific routines are
84
        further split into ones which are basically the same for all
85
        Coff targets except that they use the external symbol format
86
        or use different values for certain constants.
87
 
88
        The generic routines are in @file{coffgen.c}.  These routines
89
        work for any Coff target.  They use some hooks into the target
90
        specific code; the hooks are in a @code{bfd_coff_backend_data}
91
        structure, one of which exists for each target.
92
 
93
        The essentially similar target-specific routines are in
94
        @file{coffcode.h}.  This header file includes executable C code.
95
        The various Coff targets first include the appropriate Coff
96
        header file, make any special defines that are needed, and
97
        then include @file{coffcode.h}.
98
 
99
        Some of the Coff targets then also have additional routines in
100
        the target source file itself.
101
 
102
        For example, @file{coff-i960.c} includes
103
        @file{coff/internal.h} and @file{coff/i960.h}.  It then
104
        defines a few constants, such as @code{I960}, and includes
105
        @file{coffcode.h}.  Since the i960 has complex relocation
106
        types, @file{coff-i960.c} also includes some code to
107
        manipulate the i960 relocs.  This code is not in
108
        @file{coffcode.h} because it would not be used by any other
109
        target.
110
 
111
SUBSUBSECTION
112
        Bit twiddling
113
 
114
        Each flavour of coff supported in BFD has its own header file
115
        describing the external layout of the structures. There is also
116
        an internal description of the coff layout, in
117
        @file{coff/internal.h}. A major function of the
118
        coff backend is swapping the bytes and twiddling the bits to
119
        translate the external form of the structures into the normal
120
        internal form. This is all performed in the
121
        @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
122
        elements are different sizes between different versions of
123
        coff; it is the duty of the coff version specific include file
124
        to override the definitions of various packing routines in
125
        @file{coffcode.h}. E.g., the size of line number entry in coff is
126
        sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
127
        @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
128
        correct one. No doubt, some day someone will find a version of
129
        coff which has a varying field size not catered to at the
130
        moment. To port BFD, that person will have to add more @code{#defines}.
131
        Three of the bit twiddling routines are exported to
132
        @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
133
        and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
134
        table on its own, but uses BFD to fix things up.  More of the
135
        bit twiddlers are exported for @code{gas};
136
        @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
137
        @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
138
        @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
139
        @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
140
        of all the symbol table and reloc drudgery itself, thereby
141
        saving the internal BFD overhead, but uses BFD to swap things
142
        on the way out, making cross ports much safer.  Doing so also
143
        allows BFD (and thus the linker) to use the same header files
144
        as @code{gas}, which makes one avenue to disaster disappear.
145
 
146
SUBSUBSECTION
147
        Symbol reading
148
 
149
        The simple canonical form for symbols used by BFD is not rich
150
        enough to keep all the information available in a coff symbol
151
        table. The back end gets around this problem by keeping the original
152
        symbol table around, "behind the scenes".
153
 
154
        When a symbol table is requested (through a call to
155
        @code{bfd_canonicalize_symtab}), a request gets through to
156
        @code{coff_get_normalized_symtab}. This reads the symbol table from
157
        the coff file and swaps all the structures inside into the
158
        internal form. It also fixes up all the pointers in the table
159
        (represented in the file by offsets from the first symbol in
160
        the table) into physical pointers to elements in the new
161
        internal table. This involves some work since the meanings of
162
        fields change depending upon context: a field that is a
163
        pointer to another structure in the symbol table at one moment
164
        may be the size in bytes of a structure at the next.  Another
165
        pass is made over the table. All symbols which mark file names
166
        (<<C_FILE>> symbols) are modified so that the internal
167
        string points to the value in the auxent (the real filename)
168
        rather than the normal text associated with the symbol
169
        (@code{".file"}).
170
 
171
        At this time the symbol names are moved around. Coff stores
172
        all symbols less than nine characters long physically
173
        within the symbol table; longer strings are kept at the end of
174
        the file in the string table. This pass moves all strings
175
        into memory and replaces them with pointers to the strings.
176
 
177
        The symbol table is massaged once again, this time to create
178
        the canonical table used by the BFD application. Each symbol
179
        is inspected in turn, and a decision made (using the
180
        @code{sclass} field) about the various flags to set in the
181
        @code{asymbol}.  @xref{Symbols}. The generated canonical table
182
        shares strings with the hidden internal symbol table.
183
 
184
        Any linenumbers are read from the coff file too, and attached
185
        to the symbols which own the functions the linenumbers belong to.
186
 
187
SUBSUBSECTION
188
        Symbol writing
189
 
190
        Writing a symbol to a coff file which didn't come from a coff
191
        file will lose any debugging information. The @code{asymbol}
192
        structure remembers the BFD from which the symbol was taken, and on
193
        output the back end makes sure that the same destination target as
194
        source target is present.
195
 
196
        When the symbols have come from a coff file then all the
197
        debugging information is preserved.
198
 
199
        Symbol tables are provided for writing to the back end in a
200
        vector of pointers to pointers. This allows applications like
201
        the linker to accumulate and output large symbol tables
202
        without having to do too much byte copying.
203
 
204
        This function runs through the provided symbol table and
205
        patches each symbol marked as a file place holder
206
        (@code{C_FILE}) to point to the next file place holder in the
207
        list. It also marks each @code{offset} field in the list with
208
        the offset from the first symbol of the current symbol.
209
 
210
        Another function of this procedure is to turn the canonical
211
        value form of BFD into the form used by coff. Internally, BFD
212
        expects symbol values to be offsets from a section base; so a
213
        symbol physically at 0x120, but in a section starting at
214
        0x100, would have the value 0x20. Coff expects symbols to
215
        contain their final value, so symbols have their values
216
        changed at this point to reflect their sum with their owning
217
        section.  This transformation uses the
218
        <<output_section>> field of the @code{asymbol}'s
219
        @code{asection} @xref{Sections}.
220
 
221
        o <<coff_mangle_symbols>>
222
 
223
        This routine runs though the provided symbol table and uses
224
        the offsets generated by the previous pass and the pointers
225
        generated when the symbol table was read in to create the
226
        structured hierarchy required by coff. It changes each pointer
227
        to a symbol into the index into the symbol table of the asymbol.
228
 
229
        o <<coff_write_symbols>>
230
 
231
        This routine runs through the symbol table and patches up the
232
        symbols from their internal form into the coff way, calls the
233
        bit twiddlers, and writes out the table to the file.
234
 
235
*/
236
 
237
/*
238
INTERNAL_DEFINITION
239
        coff_symbol_type
240
 
241
DESCRIPTION
242
        The hidden information for an <<asymbol>> is described in a
243
        <<combined_entry_type>>:
244
 
245
CODE_FRAGMENT
246
.
247
.typedef struct coff_ptr_struct
248
.{
249
.  {* Remembers the offset from the first symbol in the file for
250
.     this symbol. Generated by coff_renumber_symbols. *}
251
.  unsigned int offset;
252
.
253
.  {* Should the value of this symbol be renumbered.  Used for
254
.     XCOFF C_BSTAT symbols.  Set by coff_slurp_symbol_table.  *}
255
.  unsigned int fix_value : 1;
256
.
257
.  {* Should the tag field of this symbol be renumbered.
258
.     Created by coff_pointerize_aux. *}
259
.  unsigned int fix_tag : 1;
260
.
261
.  {* Should the endidx field of this symbol be renumbered.
262
.     Created by coff_pointerize_aux. *}
263
.  unsigned int fix_end : 1;
264
.
265
.  {* Should the x_csect.x_scnlen field be renumbered.
266
.     Created by coff_pointerize_aux. *}
267
.  unsigned int fix_scnlen : 1;
268
.
269
.  {* Fix up an XCOFF C_BINCL/C_EINCL symbol.  The value is the
270
.     index into the line number entries.  Set by coff_slurp_symbol_table.  *}
271
.  unsigned int fix_line : 1;
272
.
273
.  {* The container for the symbol structure as read and translated
274
.     from the file. *}
275
.  union
276
.  {
277
.    union internal_auxent auxent;
278
.    struct internal_syment syment;
279
.  } u;
280
.} combined_entry_type;
281
.
282
.
283
.{* Each canonical asymbol really looks like this: *}
284
.
285
.typedef struct coff_symbol_struct
286
.{
287
.  {* The actual symbol which the rest of BFD works with *}
288
.  asymbol symbol;
289
.
290
.  {* A pointer to the hidden information for this symbol *}
291
.  combined_entry_type *native;
292
.
293
.  {* A pointer to the linenumber information for this symbol *}
294
.  struct lineno_cache_entry *lineno;
295
.
296
.  {* Have the line numbers been relocated yet ? *}
297
.  bfd_boolean done_lineno;
298
.} coff_symbol_type;
299
 
300
*/
301
 
302
#ifdef COFF_WITH_PE
303
#include "peicode.h"
304
#else
305
#include "coffswap.h"
306
#endif
307
 
308
#define STRING_SIZE_SIZE 4
309
 
310
#define DOT_DEBUG       ".debug"
311
#define GNU_LINKONCE_WI ".gnu.linkonce.wi."
312
 
313
static long sec_to_styp_flags
314
  (const char *, flagword);
315
static bfd_boolean styp_to_sec_flags
316
  (bfd *, void *, const char *, asection *, flagword *);
317
static bfd_boolean coff_bad_format_hook
318
  (bfd *, void *);
319
static void coff_set_custom_section_alignment
320
  (bfd *, asection *, const struct coff_section_alignment_entry *,
321
   const unsigned int);
322
static bfd_boolean coff_new_section_hook
323
  (bfd *, asection *);
324
static bfd_boolean coff_set_arch_mach_hook
325
  (bfd *, void *);
326
static bfd_boolean coff_write_relocs
327
  (bfd *, int);
328
static bfd_boolean coff_set_flags
329
  (bfd *, unsigned int *, unsigned short *);
330
static bfd_boolean coff_set_arch_mach
331
  (bfd *, enum bfd_architecture, unsigned long) ATTRIBUTE_UNUSED;
332
static bfd_boolean coff_compute_section_file_positions
333
  (bfd *);
334
static bfd_boolean coff_write_object_contents
335
  (bfd *) ATTRIBUTE_UNUSED;
336
static bfd_boolean coff_set_section_contents
337
  (bfd *, asection *, const void *, file_ptr, bfd_size_type);
338
static void * buy_and_read
339
  (bfd *, file_ptr, bfd_size_type);
340
static bfd_boolean coff_slurp_line_table
341
  (bfd *, asection *);
342
static bfd_boolean coff_slurp_symbol_table
343
  (bfd *);
344
static enum coff_symbol_classification coff_classify_symbol
345
  (bfd *, struct internal_syment *);
346
static bfd_boolean coff_slurp_reloc_table
347
  (bfd *, asection *, asymbol **);
348
static long coff_canonicalize_reloc
349
  (bfd *, asection *, arelent **, asymbol **);
350
#ifndef coff_mkobject_hook
351
static void * coff_mkobject_hook
352
  (bfd *, void *,  void *);
353
#endif
354
#ifdef COFF_WITH_PE
355
static flagword handle_COMDAT
356
  (bfd *, flagword, void *, const char *, asection *);
357
#endif
358
#ifdef COFF_IMAGE_WITH_PE
359
static bfd_boolean coff_read_word
360
  (bfd *, unsigned int *);
361
static unsigned int coff_compute_checksum
362
  (bfd *);
363
static bfd_boolean coff_apply_checksum
364
  (bfd *);
365
#endif
366
#ifdef TICOFF
367
static bfd_boolean ticoff0_bad_format_hook
368
  (bfd *, void * );
369
static bfd_boolean ticoff1_bad_format_hook
370
  (bfd *, void * );
371
#endif
372
 
373
/* void warning(); */
374
 
375
/* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
376
   the incoming SEC_* flags.  The inverse of this function is
377
   styp_to_sec_flags().  NOTE: If you add to/change this routine, you
378
   should probably mirror the changes in styp_to_sec_flags().  */
379
 
380
#ifndef COFF_WITH_PE
381
 
382
/* Macros for setting debugging flags.  */
383
 
384
#ifdef STYP_DEBUG
385
#define STYP_XCOFF_DEBUG STYP_DEBUG
386
#else
387
#define STYP_XCOFF_DEBUG STYP_INFO
388
#endif
389
 
390
#ifdef COFF_ALIGN_IN_S_FLAGS
391
#define STYP_DEBUG_INFO STYP_DSECT
392
#else
393
#define STYP_DEBUG_INFO STYP_INFO
394
#endif
395
 
396
static long
397
sec_to_styp_flags (const char *sec_name, flagword sec_flags)
398
{
399
  long styp_flags = 0;
400
 
401
  if (!strcmp (sec_name, _TEXT))
402
    {
403
      styp_flags = STYP_TEXT;
404
    }
405
  else if (!strcmp (sec_name, _DATA))
406
    {
407
      styp_flags = STYP_DATA;
408
    }
409
  else if (!strcmp (sec_name, _BSS))
410
    {
411
      styp_flags = STYP_BSS;
412
#ifdef _COMMENT
413
    }
414
  else if (!strcmp (sec_name, _COMMENT))
415
    {
416
      styp_flags = STYP_INFO;
417
#endif /* _COMMENT */
418
#ifdef _LIB
419
    }
420
  else if (!strcmp (sec_name, _LIB))
421
    {
422
      styp_flags = STYP_LIB;
423
#endif /* _LIB */
424
#ifdef _LIT
425
    }
426
  else if (!strcmp (sec_name, _LIT))
427
    {
428
      styp_flags = STYP_LIT;
429
#endif /* _LIT */
430
    }
431
  else if (CONST_STRNEQ (sec_name, DOT_DEBUG))
432
    {
433
      /* Handle the XCOFF debug section and DWARF2 debug sections.  */
434
      if (!sec_name[6])
435
        styp_flags = STYP_XCOFF_DEBUG;
436
      else
437
        styp_flags = STYP_DEBUG_INFO;
438
    }
439
  else if (CONST_STRNEQ (sec_name, ".stab"))
440
    {
441
      styp_flags = STYP_DEBUG_INFO;
442
    }
443
#ifdef COFF_LONG_SECTION_NAMES
444
  else if (CONST_STRNEQ (sec_name, GNU_LINKONCE_WI))
445
    {
446
      styp_flags = STYP_DEBUG_INFO;
447
    }
448
#endif
449
#ifdef RS6000COFF_C
450
  else if (!strcmp (sec_name, _PAD))
451
    {
452
      styp_flags = STYP_PAD;
453
    }
454
  else if (!strcmp (sec_name, _LOADER))
455
    {
456
      styp_flags = STYP_LOADER;
457
    }
458
  else if (!strcmp (sec_name, _EXCEPT))
459
    {
460
      styp_flags = STYP_EXCEPT;
461
    }
462
  else if (!strcmp (sec_name, _TYPCHK))
463
    {
464
      styp_flags = STYP_TYPCHK;
465
    }
466
#endif
467
  /* Try and figure out what it should be */
468
  else if (sec_flags & SEC_CODE)
469
    {
470
      styp_flags = STYP_TEXT;
471
    }
472
  else if (sec_flags & SEC_DATA)
473
    {
474
      styp_flags = STYP_DATA;
475
    }
476
  else if (sec_flags & SEC_READONLY)
477
    {
478
#ifdef STYP_LIT                 /* 29k readonly text/data section */
479
      styp_flags = STYP_LIT;
480
#else
481
      styp_flags = STYP_TEXT;
482
#endif /* STYP_LIT */
483
    }
484
  else if (sec_flags & SEC_LOAD)
485
    {
486
      styp_flags = STYP_TEXT;
487
    }
488
  else if (sec_flags & SEC_ALLOC)
489
    {
490
      styp_flags = STYP_BSS;
491
    }
492
 
493
#ifdef STYP_CLINK
494
  if (sec_flags & SEC_TIC54X_CLINK)
495
    styp_flags |= STYP_CLINK;
496
#endif
497
 
498
#ifdef STYP_BLOCK
499
  if (sec_flags & SEC_TIC54X_BLOCK)
500
    styp_flags |= STYP_BLOCK;
501
#endif
502
 
503
#ifdef STYP_NOLOAD
504
  if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
505
    styp_flags |= STYP_NOLOAD;
506
#endif
507
 
508
  return styp_flags;
509
}
510
 
511
#else /* COFF_WITH_PE */
512
 
513
/* The PE version; see above for the general comments.  The non-PE
514
   case seems to be more guessing, and breaks PE format; specifically,
515
   .rdata is readonly, but it sure ain't text.  Really, all this
516
   should be set up properly in gas (or whatever assembler is in use),
517
   and honor whatever objcopy/strip, etc. sent us as input.  */
518
 
519
static long
520
sec_to_styp_flags (const char *sec_name, flagword sec_flags)
521
{
522
  long styp_flags = 0;
523
 
524
  /* caution: there are at least three groups of symbols that have
525
     very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
526
     SEC_* are the BFD internal flags, used for generic BFD
527
     information.  STYP_* are the COFF section flags which appear in
528
     COFF files.  IMAGE_SCN_* are the PE section flags which appear in
529
     PE files.  The STYP_* flags and the IMAGE_SCN_* flags overlap,
530
     but there are more IMAGE_SCN_* flags.  */
531
 
532
  /* FIXME: There is no gas syntax to specify the debug section flag.  */
533
  if (CONST_STRNEQ (sec_name, DOT_DEBUG)
534
      || CONST_STRNEQ (sec_name, GNU_LINKONCE_WI))
535
    sec_flags = SEC_DEBUGGING;
536
 
537
  /* skip LOAD */
538
  /* READONLY later */
539
  /* skip RELOC */
540
  if ((sec_flags & SEC_CODE) != 0)
541
    styp_flags |= IMAGE_SCN_CNT_CODE;
542
  if ((sec_flags & SEC_DATA) != 0)
543
    styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA;
544
  if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0)
545
    styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA;  /* ==STYP_BSS */
546
  /* skip ROM */
547
  /* skip constRUCTOR */
548
  /* skip CONTENTS */
549
  if ((sec_flags & SEC_IS_COMMON) != 0)
550
    styp_flags |= IMAGE_SCN_LNK_COMDAT;
551
  if ((sec_flags & SEC_DEBUGGING) != 0)
552
    styp_flags |= IMAGE_SCN_MEM_DISCARDABLE;
553
  if ((sec_flags & SEC_EXCLUDE) != 0)
554
    styp_flags |= IMAGE_SCN_LNK_REMOVE;
555
  if ((sec_flags & SEC_NEVER_LOAD) != 0)
556
    styp_flags |= IMAGE_SCN_LNK_REMOVE;
557
  /* skip IN_MEMORY */
558
  /* skip SORT */
559
  if (sec_flags & SEC_LINK_ONCE)
560
    styp_flags |= IMAGE_SCN_LNK_COMDAT;
561
  /* skip LINK_DUPLICATES */
562
  /* skip LINKER_CREATED */
563
 
564
  if (sec_flags & (SEC_ALLOC | SEC_LOAD))
565
    {
566
      /* For now, the read/write bits are mapped onto SEC_READONLY, even
567
         though the semantics don't quite match.  The bits from the input
568
         are retained in pei_section_data(abfd, section)->pe_flags.  */
569
      styp_flags |= IMAGE_SCN_MEM_READ;       /* Always readable.  */
570
      if ((sec_flags & SEC_READONLY) == 0)
571
        styp_flags |= IMAGE_SCN_MEM_WRITE;    /* Invert READONLY for write.  */
572
      if (sec_flags & SEC_CODE)
573
        styp_flags |= IMAGE_SCN_MEM_EXECUTE;  /* CODE->EXECUTE.  */
574
      if (sec_flags & SEC_COFF_SHARED)
575
        styp_flags |= IMAGE_SCN_MEM_SHARED;   /* Shared remains meaningful.  */
576
    }
577
 
578
  return styp_flags;
579
}
580
 
581
#endif /* COFF_WITH_PE */
582
 
583
/* Return a word with SEC_* flags set to represent the incoming STYP_*
584
   flags (from scnhdr.s_flags).  The inverse of this function is
585
   sec_to_styp_flags().  NOTE: If you add to/change this routine, you
586
   should probably mirror the changes in sec_to_styp_flags().  */
587
 
588
#ifndef COFF_WITH_PE
589
 
590
static bfd_boolean
591
styp_to_sec_flags (bfd *abfd ATTRIBUTE_UNUSED,
592
                   void * hdr,
593
                   const char *name,
594
                   asection *section ATTRIBUTE_UNUSED,
595
                   flagword *flags_ptr)
596
{
597
  struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
598
  long styp_flags = internal_s->s_flags;
599
  flagword sec_flags = 0;
600
 
601
#ifdef STYP_BLOCK
602
  if (styp_flags & STYP_BLOCK)
603
    sec_flags |= SEC_TIC54X_BLOCK;
604
#endif
605
 
606
#ifdef STYP_CLINK
607
  if (styp_flags & STYP_CLINK)
608
    sec_flags |= SEC_TIC54X_CLINK;
609
#endif
610
 
611
#ifdef STYP_NOLOAD
612
  if (styp_flags & STYP_NOLOAD)
613
    sec_flags |= SEC_NEVER_LOAD;
614
#endif /* STYP_NOLOAD */
615
 
616
  /* For 386 COFF, at least, an unloadable text or data section is
617
     actually a shared library section.  */
618
  if (styp_flags & STYP_TEXT)
619
    {
620
      if (sec_flags & SEC_NEVER_LOAD)
621
        sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
622
      else
623
        sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
624
    }
625
  else if (styp_flags & STYP_DATA)
626
    {
627
      if (sec_flags & SEC_NEVER_LOAD)
628
        sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
629
      else
630
        sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
631
    }
632
  else if (styp_flags & STYP_BSS)
633
    {
634
#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
635
      if (sec_flags & SEC_NEVER_LOAD)
636
        sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
637
      else
638
#endif
639
        sec_flags |= SEC_ALLOC;
640
    }
641
  else if (styp_flags & STYP_INFO)
642
    {
643
      /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
644
         defined.  coff_compute_section_file_positions uses
645
         COFF_PAGE_SIZE to ensure that the low order bits of the
646
         section VMA and the file offset match.  If we don't know
647
         COFF_PAGE_SIZE, we can't ensure the correct correspondence,
648
         and demand page loading of the file will fail.  */
649
#if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
650
      sec_flags |= SEC_DEBUGGING;
651
#endif
652
    }
653
  else if (styp_flags & STYP_PAD)
654
    sec_flags = 0;
655
  else if (strcmp (name, _TEXT) == 0)
656
    {
657
      if (sec_flags & SEC_NEVER_LOAD)
658
        sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
659
      else
660
        sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
661
    }
662
  else if (strcmp (name, _DATA) == 0)
663
    {
664
      if (sec_flags & SEC_NEVER_LOAD)
665
        sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
666
      else
667
        sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
668
    }
669
  else if (strcmp (name, _BSS) == 0)
670
    {
671
#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
672
      if (sec_flags & SEC_NEVER_LOAD)
673
        sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
674
      else
675
#endif
676
        sec_flags |= SEC_ALLOC;
677
    }
678
  else if (CONST_STRNEQ (name, DOT_DEBUG)
679
#ifdef _COMMENT
680
           || strcmp (name, _COMMENT) == 0
681
#endif
682
#ifdef COFF_LONG_SECTION_NAMES
683
           || CONST_STRNEQ (name, GNU_LINKONCE_WI)
684
#endif
685
           || CONST_STRNEQ (name, ".stab"))
686
    {
687
#ifdef COFF_PAGE_SIZE
688
      sec_flags |= SEC_DEBUGGING;
689
#endif
690
    }
691
#ifdef _LIB
692
  else if (strcmp (name, _LIB) == 0)
693
    ;
694
#endif
695
#ifdef _LIT
696
  else if (strcmp (name, _LIT) == 0)
697
    sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY;
698
#endif
699
  else
700
    sec_flags |= SEC_ALLOC | SEC_LOAD;
701
 
702
#ifdef STYP_LIT                 /* A29k readonly text/data section type.  */
703
  if ((styp_flags & STYP_LIT) == STYP_LIT)
704
    sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY);
705
#endif /* STYP_LIT */
706
 
707
#ifdef STYP_OTHER_LOAD          /* Other loaded sections.  */
708
  if (styp_flags & STYP_OTHER_LOAD)
709
    sec_flags = (SEC_LOAD | SEC_ALLOC);
710
#endif /* STYP_SDATA */
711
 
712
#if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
713
  /* As a GNU extension, if the name begins with .gnu.linkonce, we
714
     only link a single copy of the section.  This is used to support
715
     g++.  g++ will emit each template expansion in its own section.
716
     The symbols will be defined as weak, so that multiple definitions
717
     are permitted.  The GNU linker extension is to actually discard
718
     all but one of the sections.  */
719
  if (CONST_STRNEQ (name, ".gnu.linkonce"))
720
    sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
721
#endif
722
 
723
  if (flags_ptr == NULL)
724
    return FALSE;
725
 
726
  * flags_ptr = sec_flags;
727
  return TRUE;
728
}
729
 
730
#else /* COFF_WITH_PE */
731
 
732
static flagword
733
handle_COMDAT (bfd * abfd,
734
               flagword sec_flags,
735
               void * hdr,
736
               const char *name,
737
               asection *section)
738
{
739
  struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
740
  bfd_byte *esymstart, *esym, *esymend;
741
  int seen_state = 0;
742
  char *target_name = NULL;
743
 
744
  sec_flags |= SEC_LINK_ONCE;
745
 
746
  /* Unfortunately, the PE format stores essential information in
747
     the symbol table, of all places.  We need to extract that
748
     information now, so that objdump and the linker will know how
749
     to handle the section without worrying about the symbols.  We
750
     can't call slurp_symtab, because the linker doesn't want the
751
     swapped symbols.  */
752
 
753
  /* COMDAT sections are special.  The first symbol is the section
754
     symbol, which tells what kind of COMDAT section it is.  The
755
     second symbol is the "comdat symbol" - the one with the
756
     unique name.  GNU uses the section symbol for the unique
757
     name; MS uses ".text" for every comdat section.  Sigh.  - DJ */
758
 
759
  /* This is not mirrored in sec_to_styp_flags(), but there
760
     doesn't seem to be a need to, either, and it would at best be
761
     rather messy.  */
762
 
763
  if (! _bfd_coff_get_external_symbols (abfd))
764
    return sec_flags;
765
 
766
  esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd);
767
  esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd);
768
 
769
  while (esym < esymend)
770
    {
771
      struct internal_syment isym;
772
      char buf[SYMNMLEN + 1];
773
      const char *symname;
774
 
775
      bfd_coff_swap_sym_in (abfd, esym, & isym);
776
 
777
      if (sizeof (internal_s->s_name) > SYMNMLEN)
778
        {
779
          /* This case implies that the matching
780
             symbol name will be in the string table.  */
781
          abort ();
782
        }
783
 
784
      if (isym.n_scnum == section->target_index)
785
        {
786
          /* According to the MSVC documentation, the first
787
             TWO entries with the section # are both of
788
             interest to us.  The first one is the "section
789
             symbol" (section name).  The second is the comdat
790
             symbol name.  Here, we've found the first
791
             qualifying entry; we distinguish it from the
792
             second with a state flag.
793
 
794
             In the case of gas-generated (at least until that
795
             is fixed) .o files, it isn't necessarily the
796
             second one.  It may be some other later symbol.
797
 
798
             Since gas also doesn't follow MS conventions and
799
             emits the section similar to .text$<name>, where
800
             <something> is the name we're looking for, we
801
             distinguish the two as follows:
802
 
803
             If the section name is simply a section name (no
804
             $) we presume it's MS-generated, and look at
805
             precisely the second symbol for the comdat name.
806
             If the section name has a $, we assume it's
807
             gas-generated, and look for <something> (whatever
808
             follows the $) as the comdat symbol.  */
809
 
810
          /* All 3 branches use this.  */
811
          symname = _bfd_coff_internal_syment_name (abfd, &isym, buf);
812
 
813
          if (symname == NULL)
814
            abort ();
815
 
816
          switch (seen_state)
817
            {
818
            case 0:
819
              {
820
                /* The first time we've seen the symbol.  */
821
                union internal_auxent aux;
822
 
823
                /* If it isn't the stuff we're expecting, die;
824
                   The MS documentation is vague, but it
825
                   appears that the second entry serves BOTH
826
                   as the comdat symbol and the defining
827
                   symbol record (either C_STAT or C_EXT,
828
                   possibly with an aux entry with debug
829
                   information if it's a function.)  It
830
                   appears the only way to find the second one
831
                   is to count.  (On Intel, they appear to be
832
                   adjacent, but on Alpha, they have been
833
                   found separated.)
834
 
835
                   Here, we think we've found the first one,
836
                   but there's some checking we can do to be
837
                   sure.  */
838
 
839
                if (! (isym.n_sclass == C_STAT
840
                       && isym.n_type == T_NULL
841
                       && isym.n_value == 0))
842
                  abort ();
843
 
844
                /* FIXME LATER: MSVC generates section names
845
                   like .text for comdats.  Gas generates
846
                   names like .text$foo__Fv (in the case of a
847
                   function).  See comment above for more.  */
848
 
849
                if (strcmp (name, symname) != 0)
850
                  _bfd_error_handler (_("%B: warning: COMDAT symbol '%s' does not match section name '%s'"),
851
                                      abfd, symname, name);
852
 
853
                seen_state = 1;
854
 
855
                /* This is the section symbol.  */
856
                bfd_coff_swap_aux_in (abfd, (esym + bfd_coff_symesz (abfd)),
857
                                      isym.n_type, isym.n_sclass,
858
                                      0, isym.n_numaux, & aux);
859
 
860
                target_name = strchr (name, '$');
861
                if (target_name != NULL)
862
                  {
863
                    /* Gas mode.  */
864
                    seen_state = 2;
865
                    /* Skip the `$'.  */
866
                    target_name += 1;
867
                  }
868
 
869
                /* FIXME: Microsoft uses NODUPLICATES and
870
                   ASSOCIATIVE, but gnu uses ANY and
871
                   SAME_SIZE.  Unfortunately, gnu doesn't do
872
                   the comdat symbols right.  So, until we can
873
                   fix it to do the right thing, we are
874
                   temporarily disabling comdats for the MS
875
                   types (they're used in DLLs and C++, but we
876
                   don't support *their* C++ libraries anyway
877
                   - DJ.  */
878
 
879
                /* Cygwin does not follow the MS style, and
880
                   uses ANY and SAME_SIZE where NODUPLICATES
881
                   and ASSOCIATIVE should be used.  For
882
                   Interix, we just do the right thing up
883
                   front.  */
884
 
885
                switch (aux.x_scn.x_comdat)
886
                  {
887
                  case IMAGE_COMDAT_SELECT_NODUPLICATES:
888
#ifdef STRICT_PE_FORMAT
889
                    sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
890
#else
891
                    sec_flags &= ~SEC_LINK_ONCE;
892
#endif
893
                    break;
894
 
895
                  case IMAGE_COMDAT_SELECT_ANY:
896
                    sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
897
                    break;
898
 
899
                  case IMAGE_COMDAT_SELECT_SAME_SIZE:
900
                    sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
901
                    break;
902
 
903
                  case IMAGE_COMDAT_SELECT_EXACT_MATCH:
904
                    /* Not yet fully implemented ??? */
905
                    sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
906
                    break;
907
 
908
                    /* debug$S gets this case; other
909
                       implications ??? */
910
 
911
                    /* There may be no symbol... we'll search
912
                       the whole table... Is this the right
913
                       place to play this game? Or should we do
914
                       it when reading it in.  */
915
                  case IMAGE_COMDAT_SELECT_ASSOCIATIVE:
916
#ifdef STRICT_PE_FORMAT
917
                    /* FIXME: This is not currently implemented.  */
918
                    sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
919
#else
920
                    sec_flags &= ~SEC_LINK_ONCE;
921
#endif
922
                    break;
923
 
924
                  default:  /* 0 means "no symbol" */
925
                    /* debug$F gets this case; other
926
                       implications ??? */
927
                    sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
928
                    break;
929
                  }
930
              }
931
              break;
932
 
933
            case 2:
934
              /* Gas mode: the first matching on partial name.  */
935
 
936
#ifndef TARGET_UNDERSCORE
937
#define TARGET_UNDERSCORE 0
938
#endif
939
              /* Is this the name we're looking for ?  */
940
              if (strcmp (target_name,
941
                          symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0)
942
                {
943
                  /* Not the name we're looking for */
944
                  esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
945
                  continue;
946
                }
947
              /* Fall through.  */
948
            case 1:
949
              /* MSVC mode: the lexically second symbol (or
950
                 drop through from the above).  */
951
              {
952
                char *newname;
953
                bfd_size_type amt;
954
 
955
                /* This must the second symbol with the
956
                   section #.  It is the actual symbol name.
957
                   Intel puts the two adjacent, but Alpha (at
958
                   least) spreads them out.  */
959
 
960
                amt = sizeof (struct coff_comdat_info);
961
                coff_section_data (abfd, section)->comdat
962
                  = bfd_alloc (abfd, amt);
963
                if (coff_section_data (abfd, section)->comdat == NULL)
964
                  abort ();
965
 
966
                coff_section_data (abfd, section)->comdat->symbol =
967
                  (esym - esymstart) / bfd_coff_symesz (abfd);
968
 
969
                amt = strlen (symname) + 1;
970
                newname = bfd_alloc (abfd, amt);
971
                if (newname == NULL)
972
                  abort ();
973
 
974
                strcpy (newname, symname);
975
                coff_section_data (abfd, section)->comdat->name
976
                  = newname;
977
              }
978
 
979
              goto breakloop;
980
            }
981
        }
982
 
983
      esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
984
    }
985
 
986
 breakloop:
987
  return sec_flags;
988
}
989
 
990
 
991
/* The PE version; see above for the general comments.
992
 
993
   Since to set the SEC_LINK_ONCE and associated flags, we have to
994
   look at the symbol table anyway, we return the symbol table index
995
   of the symbol being used as the COMDAT symbol.  This is admittedly
996
   ugly, but there's really nowhere else that we have access to the
997
   required information.  FIXME: Is the COMDAT symbol index used for
998
   any purpose other than objdump?  */
999
 
1000
static bfd_boolean
1001
styp_to_sec_flags (bfd *abfd,
1002
                   void * hdr,
1003
                   const char *name,
1004
                   asection *section,
1005
                   flagword *flags_ptr)
1006
{
1007
  struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
1008
  long styp_flags = internal_s->s_flags;
1009
  flagword sec_flags;
1010
  bfd_boolean result = TRUE;
1011
 
1012
  /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified.  */
1013
  sec_flags = SEC_READONLY;
1014
 
1015
  /* Process each flag bit in styp_flags in turn.  */
1016
  while (styp_flags)
1017
    {
1018
      long flag = styp_flags & - styp_flags;
1019
      char * unhandled = NULL;
1020
 
1021
      styp_flags &= ~ flag;
1022
 
1023
      /* We infer from the distinct read/write/execute bits the settings
1024
         of some of the bfd flags; the actual values, should we need them,
1025
         are also in pei_section_data (abfd, section)->pe_flags.  */
1026
 
1027
      switch (flag)
1028
        {
1029
        case STYP_DSECT:
1030
          unhandled = "STYP_DSECT";
1031
          break;
1032
        case STYP_GROUP:
1033
          unhandled = "STYP_GROUP";
1034
          break;
1035
        case STYP_COPY:
1036
          unhandled = "STYP_COPY";
1037
          break;
1038
        case STYP_OVER:
1039
          unhandled = "STYP_OVER";
1040
          break;
1041
#ifdef SEC_NEVER_LOAD
1042
        case STYP_NOLOAD:
1043
          sec_flags |= SEC_NEVER_LOAD;
1044
          break;
1045
#endif
1046
        case IMAGE_SCN_MEM_READ:
1047
          /* Ignored, assume it always to be true.  */
1048
          break;
1049
        case IMAGE_SCN_TYPE_NO_PAD:
1050
          /* Skip.  */
1051
          break;
1052
        case IMAGE_SCN_LNK_OTHER:
1053
          unhandled = "IMAGE_SCN_LNK_OTHER";
1054
          break;
1055
        case IMAGE_SCN_MEM_NOT_CACHED:
1056
          unhandled = "IMAGE_SCN_MEM_NOT_CACHED";
1057
          break;
1058
        case IMAGE_SCN_MEM_NOT_PAGED:
1059
          /* Generate a warning message rather using the 'unhandled'
1060
             variable as this will allow some .sys files generate by
1061
             other toolchains to be processed.  See bugzilla issue 196.  */
1062
          _bfd_error_handler (_("%B: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section %s"),
1063
                              abfd, name);
1064
          break;
1065
        case IMAGE_SCN_MEM_EXECUTE:
1066
          sec_flags |= SEC_CODE;
1067
          break;
1068
        case IMAGE_SCN_MEM_WRITE:
1069
          sec_flags &= ~ SEC_READONLY;
1070
          break;
1071
        case IMAGE_SCN_MEM_DISCARDABLE:
1072
          /* The MS PE spec sets the DISCARDABLE flag on .reloc sections
1073
             but we do not want them to be labelled as debug section, since
1074
             then strip would remove them.  */
1075
          if (! CONST_STRNEQ (name, ".reloc"))
1076
            sec_flags |= SEC_DEBUGGING;
1077
          break;
1078
        case IMAGE_SCN_MEM_SHARED:
1079
          sec_flags |= SEC_COFF_SHARED;
1080
          break;
1081
        case IMAGE_SCN_LNK_REMOVE:
1082
          sec_flags |= SEC_EXCLUDE;
1083
          break;
1084
        case IMAGE_SCN_CNT_CODE:
1085
          sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD;
1086
          break;
1087
        case IMAGE_SCN_CNT_INITIALIZED_DATA:
1088
          sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD;
1089
          break;
1090
        case IMAGE_SCN_CNT_UNINITIALIZED_DATA:
1091
          sec_flags |= SEC_ALLOC;
1092
          break;
1093
        case IMAGE_SCN_LNK_INFO:
1094
          /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1095
             defined.  coff_compute_section_file_positions uses
1096
             COFF_PAGE_SIZE to ensure that the low order bits of the
1097
             section VMA and the file offset match.  If we don't know
1098
             COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1099
             and demand page loading of the file will fail.  */
1100
#ifdef COFF_PAGE_SIZE
1101
          sec_flags |= SEC_DEBUGGING;
1102
#endif
1103
          break;
1104
        case IMAGE_SCN_LNK_COMDAT:
1105
          /* COMDAT gets very special treatment.  */
1106
          sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section);
1107
          break;
1108
        default:
1109
          /* Silently ignore for now.  */
1110
          break;
1111
        }
1112
 
1113
      /* If the section flag was not handled, report it here.  */
1114
      if (unhandled != NULL)
1115
        {
1116
          (*_bfd_error_handler)
1117
            (_("%B (%s): Section flag %s (0x%x) ignored"),
1118
             abfd, name, unhandled, flag);
1119
          result = FALSE;
1120
        }
1121
    }
1122
 
1123
#if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1124
  /* As a GNU extension, if the name begins with .gnu.linkonce, we
1125
     only link a single copy of the section.  This is used to support
1126
     g++.  g++ will emit each template expansion in its own section.
1127
     The symbols will be defined as weak, so that multiple definitions
1128
     are permitted.  The GNU linker extension is to actually discard
1129
     all but one of the sections.  */
1130
  if (CONST_STRNEQ (name, ".gnu.linkonce"))
1131
    sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
1132
#endif
1133
 
1134
  if (flags_ptr)
1135
    * flags_ptr = sec_flags;
1136
 
1137
  return result;
1138
}
1139
 
1140
#endif /* COFF_WITH_PE */
1141
 
1142
#define get_index(symbol)       ((symbol)->udata.i)
1143
 
1144
/*
1145
INTERNAL_DEFINITION
1146
        bfd_coff_backend_data
1147
 
1148
CODE_FRAGMENT
1149
 
1150
.{* COFF symbol classifications.  *}
1151
.
1152
.enum coff_symbol_classification
1153
.{
1154
.  {* Global symbol.  *}
1155
.  COFF_SYMBOL_GLOBAL,
1156
.  {* Common symbol.  *}
1157
.  COFF_SYMBOL_COMMON,
1158
.  {* Undefined symbol.  *}
1159
.  COFF_SYMBOL_UNDEFINED,
1160
.  {* Local symbol.  *}
1161
.  COFF_SYMBOL_LOCAL,
1162
.  {* PE section symbol.  *}
1163
.  COFF_SYMBOL_PE_SECTION
1164
.};
1165
.
1166
Special entry points for gdb to swap in coff symbol table parts:
1167
.typedef struct
1168
.{
1169
.  void (*_bfd_coff_swap_aux_in)
1170
.    (bfd *, void *, int, int, int, int, void *);
1171
.
1172
.  void (*_bfd_coff_swap_sym_in)
1173
.    (bfd *, void *, void *);
1174
.
1175
.  void (*_bfd_coff_swap_lineno_in)
1176
.    (bfd *, void *, void *);
1177
.
1178
.  unsigned int (*_bfd_coff_swap_aux_out)
1179
.    (bfd *, void *, int, int, int, int, void *);
1180
.
1181
.  unsigned int (*_bfd_coff_swap_sym_out)
1182
.    (bfd *, void *, void *);
1183
.
1184
.  unsigned int (*_bfd_coff_swap_lineno_out)
1185
.    (bfd *, void *, void *);
1186
.
1187
.  unsigned int (*_bfd_coff_swap_reloc_out)
1188
.    (bfd *, void *, void *);
1189
.
1190
.  unsigned int (*_bfd_coff_swap_filehdr_out)
1191
.    (bfd *, void *, void *);
1192
.
1193
.  unsigned int (*_bfd_coff_swap_aouthdr_out)
1194
.    (bfd *, void *, void *);
1195
.
1196
.  unsigned int (*_bfd_coff_swap_scnhdr_out)
1197
.    (bfd *, void *, void *);
1198
.
1199
.  unsigned int _bfd_filhsz;
1200
.  unsigned int _bfd_aoutsz;
1201
.  unsigned int _bfd_scnhsz;
1202
.  unsigned int _bfd_symesz;
1203
.  unsigned int _bfd_auxesz;
1204
.  unsigned int _bfd_relsz;
1205
.  unsigned int _bfd_linesz;
1206
.  unsigned int _bfd_filnmlen;
1207
.  bfd_boolean _bfd_coff_long_filenames;
1208
.  bfd_boolean _bfd_coff_long_section_names;
1209
.  unsigned int _bfd_coff_default_section_alignment_power;
1210
.  bfd_boolean _bfd_coff_force_symnames_in_strings;
1211
.  unsigned int _bfd_coff_debug_string_prefix_length;
1212
.
1213
.  void (*_bfd_coff_swap_filehdr_in)
1214
.    (bfd *, void *, void *);
1215
.
1216
.  void (*_bfd_coff_swap_aouthdr_in)
1217
.    (bfd *, void *, void *);
1218
.
1219
.  void (*_bfd_coff_swap_scnhdr_in)
1220
.    (bfd *, void *, void *);
1221
.
1222
.  void (*_bfd_coff_swap_reloc_in)
1223
.    (bfd *abfd, void *, void *);
1224
.
1225
.  bfd_boolean (*_bfd_coff_bad_format_hook)
1226
.    (bfd *, void *);
1227
.
1228
.  bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1229
.    (bfd *, void *);
1230
.
1231
.  void * (*_bfd_coff_mkobject_hook)
1232
.    (bfd *, void *, void *);
1233
.
1234
.  bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1235
.    (bfd *, void *, const char *, asection *, flagword *);
1236
.
1237
.  void (*_bfd_set_alignment_hook)
1238
.    (bfd *, asection *, void *);
1239
.
1240
.  bfd_boolean (*_bfd_coff_slurp_symbol_table)
1241
.    (bfd *);
1242
.
1243
.  bfd_boolean (*_bfd_coff_symname_in_debug)
1244
.    (bfd *, struct internal_syment *);
1245
.
1246
.  bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1247
.    (bfd *, combined_entry_type *, combined_entry_type *,
1248
.            unsigned int, combined_entry_type *);
1249
.
1250
.  bfd_boolean (*_bfd_coff_print_aux)
1251
.    (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1252
.            combined_entry_type *, unsigned int);
1253
.
1254
.  void (*_bfd_coff_reloc16_extra_cases)
1255
.    (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1256
.           bfd_byte *, unsigned int *, unsigned int *);
1257
.
1258
.  int (*_bfd_coff_reloc16_estimate)
1259
.    (bfd *, asection *, arelent *, unsigned int,
1260
.            struct bfd_link_info *);
1261
.
1262
.  enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1263
.    (bfd *, struct internal_syment *);
1264
.
1265
.  bfd_boolean (*_bfd_coff_compute_section_file_positions)
1266
.    (bfd *);
1267
.
1268
.  bfd_boolean (*_bfd_coff_start_final_link)
1269
.    (bfd *, struct bfd_link_info *);
1270
.
1271
.  bfd_boolean (*_bfd_coff_relocate_section)
1272
.    (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1273
.            struct internal_reloc *, struct internal_syment *, asection **);
1274
.
1275
.  reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1276
.    (bfd *, asection *, struct internal_reloc *,
1277
.            struct coff_link_hash_entry *, struct internal_syment *,
1278
.            bfd_vma *);
1279
.
1280
.  bfd_boolean (*_bfd_coff_adjust_symndx)
1281
.    (bfd *, struct bfd_link_info *, bfd *, asection *,
1282
.            struct internal_reloc *, bfd_boolean *);
1283
.
1284
.  bfd_boolean (*_bfd_coff_link_add_one_symbol)
1285
.    (struct bfd_link_info *, bfd *, const char *, flagword,
1286
.            asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1287
.            struct bfd_link_hash_entry **);
1288
.
1289
.  bfd_boolean (*_bfd_coff_link_output_has_begun)
1290
.    (bfd *, struct coff_final_link_info *);
1291
.
1292
.  bfd_boolean (*_bfd_coff_final_link_postscript)
1293
.    (bfd *, struct coff_final_link_info *);
1294
.
1295
.  bfd_boolean (*_bfd_coff_print_pdata)
1296
.    (bfd *, void *);
1297
.
1298
.} bfd_coff_backend_data;
1299
.
1300
.#define coff_backend_info(abfd) \
1301
.  ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1302
.
1303
.#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1304
.  ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1305
.
1306
.#define bfd_coff_swap_sym_in(a,e,i) \
1307
.  ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1308
.
1309
.#define bfd_coff_swap_lineno_in(a,e,i) \
1310
.  ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1311
.
1312
.#define bfd_coff_swap_reloc_out(abfd, i, o) \
1313
.  ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1314
.
1315
.#define bfd_coff_swap_lineno_out(abfd, i, o) \
1316
.  ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1317
.
1318
.#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1319
.  ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1320
.
1321
.#define bfd_coff_swap_sym_out(abfd, i,o) \
1322
.  ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1323
.
1324
.#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1325
.  ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1326
.
1327
.#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1328
.  ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1329
.
1330
.#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1331
.  ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1332
.
1333
.#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1334
.#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1335
.#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1336
.#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1337
.#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1338
.#define bfd_coff_relsz(abfd)  (coff_backend_info (abfd)->_bfd_relsz)
1339
.#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1340
.#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1341
.#define bfd_coff_long_filenames(abfd) \
1342
.  (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1343
.#define bfd_coff_long_section_names(abfd) \
1344
.  (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1345
.#define bfd_coff_default_section_alignment_power(abfd) \
1346
.  (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1347
.#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1348
.  ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1349
.
1350
.#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1351
.  ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1352
.
1353
.#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1354
.  ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1355
.
1356
.#define bfd_coff_swap_reloc_in(abfd, i, o) \
1357
.  ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1358
.
1359
.#define bfd_coff_bad_format_hook(abfd, filehdr) \
1360
.  ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1361
.
1362
.#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1363
.  ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1364
.#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1365
.  ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1366
.   (abfd, filehdr, aouthdr))
1367
.
1368
.#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1369
.  ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1370
.   (abfd, scnhdr, name, section, flags_ptr))
1371
.
1372
.#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1373
.  ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1374
.
1375
.#define bfd_coff_slurp_symbol_table(abfd)\
1376
.  ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1377
.
1378
.#define bfd_coff_symname_in_debug(abfd, sym)\
1379
.  ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1380
.
1381
.#define bfd_coff_force_symnames_in_strings(abfd)\
1382
.  (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1383
.
1384
.#define bfd_coff_debug_string_prefix_length(abfd)\
1385
.  (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1386
.
1387
.#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1388
.  ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1389
.   (abfd, file, base, symbol, aux, indaux))
1390
.
1391
.#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1392
.                                     reloc, data, src_ptr, dst_ptr)\
1393
.  ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1394
.   (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1395
.
1396
.#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1397
.  ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1398
.   (abfd, section, reloc, shrink, link_info))
1399
.
1400
.#define bfd_coff_classify_symbol(abfd, sym)\
1401
.  ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1402
.   (abfd, sym))
1403
.
1404
.#define bfd_coff_compute_section_file_positions(abfd)\
1405
.  ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1406
.   (abfd))
1407
.
1408
.#define bfd_coff_start_final_link(obfd, info)\
1409
.  ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1410
.   (obfd, info))
1411
.#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1412
.  ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1413
.   (obfd, info, ibfd, o, con, rel, isyms, secs))
1414
.#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1415
.  ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1416
.   (abfd, sec, rel, h, sym, addendp))
1417
.#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1418
.  ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1419
.   (obfd, info, ibfd, sec, rel, adjustedp))
1420
.#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1421
.                                     value, string, cp, coll, hashp)\
1422
.  ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1423
.   (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1424
.
1425
.#define bfd_coff_link_output_has_begun(a,p) \
1426
.  ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
1427
.#define bfd_coff_final_link_postscript(a,p) \
1428
.  ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
1429
.
1430
.#define bfd_coff_have_print_pdata(a) \
1431
.  (coff_backend_info (a)->_bfd_coff_print_pdata)
1432
.#define bfd_coff_print_pdata(a,p) \
1433
.  ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1434
.
1435
*/
1436
 
1437
/* See whether the magic number matches.  */
1438
 
1439
static bfd_boolean
1440
coff_bad_format_hook (bfd * abfd ATTRIBUTE_UNUSED, void * filehdr)
1441
{
1442
  struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1443
 
1444
  if (BADMAG (*internal_f))
1445
    return FALSE;
1446
 
1447
  /* If the optional header is NULL or not the correct size then
1448
     quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1449
     and Intel 960 readwrite headers (I960WRMAGIC) is that the
1450
     optional header is of a different size.
1451
 
1452
     But the mips keeps extra stuff in it's opthdr, so dont check
1453
     when doing that.  */
1454
 
1455
#if defined(M88) || defined(I960)
1456
  if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr)
1457
    return FALSE;
1458
#endif
1459
 
1460
  return TRUE;
1461
}
1462
 
1463
#ifdef TICOFF
1464
static bfd_boolean
1465
ticoff0_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr)
1466
{
1467
  struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1468
 
1469
  if (COFF0_BADMAG (*internal_f))
1470
    return FALSE;
1471
 
1472
  return TRUE;
1473
}
1474
#endif
1475
 
1476
#ifdef TICOFF
1477
static bfd_boolean
1478
ticoff1_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr)
1479
{
1480
  struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1481
 
1482
  if (COFF1_BADMAG (*internal_f))
1483
    return FALSE;
1484
 
1485
  return TRUE;
1486
}
1487
#endif
1488
 
1489
/* Check whether this section uses an alignment other than the
1490
   default.  */
1491
 
1492
static void
1493
coff_set_custom_section_alignment (bfd *abfd ATTRIBUTE_UNUSED,
1494
                                   asection *section,
1495
                                   const struct coff_section_alignment_entry *alignment_table,
1496
                                   const unsigned int table_size)
1497
{
1498
  const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1499
  unsigned int i;
1500
 
1501
  for (i = 0; i < table_size; ++i)
1502
    {
1503
      const char *secname = bfd_get_section_name (abfd, section);
1504
 
1505
      if (alignment_table[i].comparison_length == (unsigned int) -1
1506
          ? strcmp (alignment_table[i].name, secname) == 0
1507
          : strncmp (alignment_table[i].name, secname,
1508
                     alignment_table[i].comparison_length) == 0)
1509
        break;
1510
    }
1511
  if (i >= table_size)
1512
    return;
1513
 
1514
  if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY
1515
      && default_alignment < alignment_table[i].default_alignment_min)
1516
    return;
1517
 
1518
  if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY
1519
#if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1520
      && default_alignment > alignment_table[i].default_alignment_max
1521
#endif
1522
      )
1523
    return;
1524
 
1525
  section->alignment_power = alignment_table[i].alignment_power;
1526
}
1527
 
1528
/* Custom section alignment records.  */
1529
 
1530
static const struct coff_section_alignment_entry
1531
coff_section_alignment_table[] =
1532
{
1533
#ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1534
  COFF_SECTION_ALIGNMENT_ENTRIES,
1535
#endif
1536
  /* There must not be any gaps between .stabstr sections.  */
1537
  { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1538
    1, COFF_ALIGNMENT_FIELD_EMPTY, 0 },
1539
  /* The .stab section must be aligned to 2**2 at most, to avoid gaps.  */
1540
  { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1541
    3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1542
  /* Similarly for the .ctors and .dtors sections.  */
1543
  { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1544
    3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1545
  { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1546
    3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
1547
};
1548
 
1549
static const unsigned int coff_section_alignment_table_size =
1550
  sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0];
1551
 
1552
/* Initialize a section structure with information peculiar to this
1553
   particular implementation of COFF.  */
1554
 
1555
static bfd_boolean
1556
coff_new_section_hook (bfd * abfd, asection * section)
1557
{
1558
  combined_entry_type *native;
1559
  bfd_size_type amt;
1560
 
1561
  section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1562
 
1563
#ifdef RS6000COFF_C
1564
  if (bfd_xcoff_text_align_power (abfd) != 0
1565
      && strcmp (bfd_get_section_name (abfd, section), ".text") == 0)
1566
    section->alignment_power = bfd_xcoff_text_align_power (abfd);
1567
  if (bfd_xcoff_data_align_power (abfd) != 0
1568
      && strcmp (bfd_get_section_name (abfd, section), ".data") == 0)
1569
    section->alignment_power = bfd_xcoff_data_align_power (abfd);
1570
#endif
1571
 
1572
  /* Set up the section symbol.  */
1573
  if (!_bfd_generic_new_section_hook (abfd, section))
1574
    return FALSE;
1575
 
1576
  /* Allocate aux records for section symbols, to store size and
1577
     related info.
1578
 
1579
     @@ The 10 is a guess at a plausible maximum number of aux entries
1580
     (but shouldn't be a constant).  */
1581
  amt = sizeof (combined_entry_type) * 10;
1582
  native = bfd_zalloc (abfd, amt);
1583
  if (native == NULL)
1584
    return FALSE;
1585
 
1586
  /* We don't need to set up n_name, n_value, or n_scnum in the native
1587
     symbol information, since they'll be overridden by the BFD symbol
1588
     anyhow.  However, we do need to set the type and storage class,
1589
     in case this symbol winds up getting written out.  The value 0
1590
     for n_numaux is already correct.  */
1591
 
1592
  native->u.syment.n_type = T_NULL;
1593
  native->u.syment.n_sclass = C_STAT;
1594
 
1595
  coffsymbol (section->symbol)->native = native;
1596
 
1597
  coff_set_custom_section_alignment (abfd, section,
1598
                                     coff_section_alignment_table,
1599
                                     coff_section_alignment_table_size);
1600
 
1601
  return TRUE;
1602
}
1603
 
1604
#ifdef COFF_ALIGN_IN_SECTION_HEADER
1605
 
1606
/* Set the alignment of a BFD section.  */
1607
 
1608
static void
1609
coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED,
1610
                         asection * section,
1611
                         void * scnhdr)
1612
{
1613
  struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1614
  unsigned int i;
1615
 
1616
#ifdef I960
1617
  /* Extract ALIGN from 2**ALIGN stored in section header.  */
1618
  for (i = 0; i < 32; i++)
1619
    if ((1 << i) >= hdr->s_align)
1620
      break;
1621
#endif
1622
#ifdef TIC80COFF
1623
  /* TI tools puts the alignment power in bits 8-11.  */
1624
  i = (hdr->s_flags >> 8) & 0xF ;
1625
#endif
1626
#ifdef COFF_DECODE_ALIGNMENT
1627
  i = COFF_DECODE_ALIGNMENT(hdr->s_flags);
1628
#endif
1629
  section->alignment_power = i;
1630
 
1631
#ifdef coff_set_section_load_page
1632
  coff_set_section_load_page (section, hdr->s_page);
1633
#endif
1634
}
1635
 
1636
#else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1637
#ifdef COFF_WITH_PE
1638
 
1639
static void
1640
coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED,
1641
                         asection * section,
1642
                         void * scnhdr)
1643
{
1644
  struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1645
  bfd_size_type amt;
1646
  unsigned int alignment_power_const
1647
    = hdr->s_flags & IMAGE_SCN_ALIGN_POWER_BIT_MASK;
1648
 
1649
  switch (alignment_power_const)
1650
    {
1651
    case IMAGE_SCN_ALIGN_8192BYTES:
1652
    case IMAGE_SCN_ALIGN_4096BYTES:
1653
    case IMAGE_SCN_ALIGN_2048BYTES:
1654
    case IMAGE_SCN_ALIGN_1024BYTES:
1655
    case IMAGE_SCN_ALIGN_512BYTES:
1656
    case IMAGE_SCN_ALIGN_256BYTES:
1657
    case IMAGE_SCN_ALIGN_128BYTES:
1658
    case IMAGE_SCN_ALIGN_64BYTES:
1659
    case IMAGE_SCN_ALIGN_32BYTES:
1660
    case IMAGE_SCN_ALIGN_16BYTES:
1661
    case IMAGE_SCN_ALIGN_8BYTES:
1662
    case IMAGE_SCN_ALIGN_4BYTES:
1663
    case IMAGE_SCN_ALIGN_2BYTES:
1664
    case IMAGE_SCN_ALIGN_1BYTES:
1665
      section->alignment_power
1666
        = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const);
1667
      break;
1668
    default:
1669
      break;
1670
    }
1671
 
1672
  /* In a PE image file, the s_paddr field holds the virtual size of a
1673
     section, while the s_size field holds the raw size.  We also keep
1674
     the original section flag value, since not every bit can be
1675
     mapped onto a generic BFD section bit.  */
1676
  if (coff_section_data (abfd, section) == NULL)
1677
    {
1678
      amt = sizeof (struct coff_section_tdata);
1679
      section->used_by_bfd = bfd_zalloc (abfd, amt);
1680
      if (section->used_by_bfd == NULL)
1681
        /* FIXME: Return error.  */
1682
        abort ();
1683
    }
1684
 
1685
  if (pei_section_data (abfd, section) == NULL)
1686
    {
1687
      amt = sizeof (struct pei_section_tdata);
1688
      coff_section_data (abfd, section)->tdata = bfd_zalloc (abfd, amt);
1689
      if (coff_section_data (abfd, section)->tdata == NULL)
1690
        /* FIXME: Return error.  */
1691
        abort ();
1692
    }
1693
  pei_section_data (abfd, section)->virt_size = hdr->s_paddr;
1694
  pei_section_data (abfd, section)->pe_flags = hdr->s_flags;
1695
 
1696
  section->lma = hdr->s_vaddr;
1697
 
1698
  /* Check for extended relocs.  */
1699
  if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL)
1700
    {
1701
      struct external_reloc dst;
1702
      struct internal_reloc n;
1703
      file_ptr oldpos = bfd_tell (abfd);
1704
      bfd_size_type relsz = bfd_coff_relsz (abfd);
1705
 
1706
      bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0);
1707
      if (bfd_bread (& dst, relsz, abfd) != relsz)
1708
        return;
1709
 
1710
      coff_swap_reloc_in (abfd, &dst, &n);
1711
      bfd_seek (abfd, oldpos, 0);
1712
      section->reloc_count = hdr->s_nreloc = n.r_vaddr - 1;
1713
      section->rel_filepos += relsz;
1714
    }
1715
  else if (hdr->s_nreloc == 0xffff)
1716
    (*_bfd_error_handler)
1717
      ("%s: warning: claims to have 0xffff relocs, without overflow",
1718
       bfd_get_filename (abfd));
1719
}
1720
#undef ALIGN_SET
1721
#undef ELIFALIGN_SET
1722
 
1723
#else /* ! COFF_WITH_PE */
1724
#ifdef RS6000COFF_C
1725
 
1726
/* We grossly abuse this function to handle XCOFF overflow headers.
1727
   When we see one, we correct the reloc and line number counts in the
1728
   real header, and remove the section we just created.  */
1729
 
1730
static void
1731
coff_set_alignment_hook (bfd *abfd, asection *section, void * scnhdr)
1732
{
1733
  struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1734
  asection *real_sec;
1735
 
1736
  if ((hdr->s_flags & STYP_OVRFLO) == 0)
1737
    return;
1738
 
1739
  real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc);
1740
  if (real_sec == NULL)
1741
    return;
1742
 
1743
  real_sec->reloc_count = hdr->s_paddr;
1744
  real_sec->lineno_count = hdr->s_vaddr;
1745
 
1746
  if (!bfd_section_removed_from_list (abfd, section))
1747
    {
1748
      bfd_section_list_remove (abfd, section);
1749
      --abfd->section_count;
1750
    }
1751
}
1752
 
1753
#else /* ! RS6000COFF_C */
1754
 
1755
#define coff_set_alignment_hook \
1756
  ((void (*) (bfd *, asection *, void *)) bfd_void)
1757
 
1758
#endif /* ! RS6000COFF_C */
1759
#endif /* ! COFF_WITH_PE */
1760
#endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1761
 
1762
#ifndef coff_mkobject
1763
 
1764
static bfd_boolean
1765
coff_mkobject (bfd * abfd)
1766
{
1767
  coff_data_type *coff;
1768
  bfd_size_type amt = sizeof (coff_data_type);
1769
 
1770
  abfd->tdata.coff_obj_data = bfd_zalloc (abfd, amt);
1771
  if (abfd->tdata.coff_obj_data == NULL)
1772
    return FALSE;
1773
  coff = coff_data (abfd);
1774
  coff->symbols = NULL;
1775
  coff->conversion_table = NULL;
1776
  coff->raw_syments = NULL;
1777
  coff->relocbase = 0;
1778
  coff->local_toc_sym_map = 0;
1779
 
1780
/*  make_abs_section(abfd);*/
1781
 
1782
  return TRUE;
1783
}
1784
#endif
1785
 
1786
/* Create the COFF backend specific information.  */
1787
 
1788
#ifndef coff_mkobject_hook
1789
static void *
1790
coff_mkobject_hook (bfd * abfd,
1791
                    void * filehdr,
1792
                    void * aouthdr ATTRIBUTE_UNUSED)
1793
{
1794
  struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1795
  coff_data_type *coff;
1796
 
1797
  if (! coff_mkobject (abfd))
1798
    return NULL;
1799
 
1800
  coff = coff_data (abfd);
1801
 
1802
  coff->sym_filepos = internal_f->f_symptr;
1803
 
1804
  /* These members communicate important constants about the symbol
1805
     table to GDB's symbol-reading code.  These `constants'
1806
     unfortunately vary among coff implementations...  */
1807
  coff->local_n_btmask = N_BTMASK;
1808
  coff->local_n_btshft = N_BTSHFT;
1809
  coff->local_n_tmask = N_TMASK;
1810
  coff->local_n_tshift = N_TSHIFT;
1811
  coff->local_symesz = bfd_coff_symesz (abfd);
1812
  coff->local_auxesz = bfd_coff_auxesz (abfd);
1813
  coff->local_linesz = bfd_coff_linesz (abfd);
1814
 
1815
  coff->timestamp = internal_f->f_timdat;
1816
 
1817
  obj_raw_syment_count (abfd) =
1818
    obj_conv_table_size (abfd) =
1819
      internal_f->f_nsyms;
1820
 
1821
#ifdef RS6000COFF_C
1822
  if ((internal_f->f_flags & F_SHROBJ) != 0)
1823
    abfd->flags |= DYNAMIC;
1824
  if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd))
1825
    {
1826
      struct internal_aouthdr *internal_a =
1827
        (struct internal_aouthdr *) aouthdr;
1828
      struct xcoff_tdata *xcoff;
1829
 
1830
      xcoff = xcoff_data (abfd);
1831
# ifdef U803XTOCMAGIC
1832
      xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC;
1833
# else
1834
      xcoff->xcoff64 = 0;
1835
# endif
1836
      xcoff->full_aouthdr = TRUE;
1837
      xcoff->toc = internal_a->o_toc;
1838
      xcoff->sntoc = internal_a->o_sntoc;
1839
      xcoff->snentry = internal_a->o_snentry;
1840
      bfd_xcoff_text_align_power (abfd) = internal_a->o_algntext;
1841
      bfd_xcoff_data_align_power (abfd) = internal_a->o_algndata;
1842
      xcoff->modtype = internal_a->o_modtype;
1843
      xcoff->cputype = internal_a->o_cputype;
1844
      xcoff->maxdata = internal_a->o_maxdata;
1845
      xcoff->maxstack = internal_a->o_maxstack;
1846
    }
1847
#endif
1848
 
1849
#ifdef ARM
1850
  /* Set the flags field from the COFF header read in.  */
1851
  if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
1852
    coff->flags = 0;
1853
#endif
1854
 
1855
#ifdef COFF_WITH_PE
1856
  /* FIXME: I'm not sure this is ever executed, since peicode.h
1857
     defines coff_mkobject_hook.  */
1858
  if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
1859
    abfd->flags |= HAS_DEBUG;
1860
#endif
1861
 
1862
  return coff;
1863
}
1864
#endif
1865
 
1866
/* Determine the machine architecture and type.  FIXME: This is target
1867
   dependent because the magic numbers are defined in the target
1868
   dependent header files.  But there is no particular need for this.
1869
   If the magic numbers were moved to a separate file, this function
1870
   would be target independent and would also be much more successful
1871
   at linking together COFF files for different architectures.  */
1872
 
1873
static bfd_boolean
1874
coff_set_arch_mach_hook (bfd *abfd, void * filehdr)
1875
{
1876
  unsigned long machine;
1877
  enum bfd_architecture arch;
1878
  struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1879
 
1880
  /* Zero selects the default machine for an arch.  */
1881
  machine = 0;
1882
  switch (internal_f->f_magic)
1883
    {
1884
#ifdef OR32_MAGIC_BIG
1885
    case OR32_MAGIC_BIG:
1886
    case OR32_MAGIC_LITTLE:
1887
      arch = bfd_arch_or32;
1888
      break;
1889
#endif
1890
#ifdef PPCMAGIC
1891
    case PPCMAGIC:
1892
      arch = bfd_arch_powerpc;
1893
      break;
1894
#endif
1895
#ifdef I386MAGIC
1896
    case I386MAGIC:
1897
    case I386PTXMAGIC:
1898
    case I386AIXMAGIC:          /* Danbury PS/2 AIX C Compiler.  */
1899
    case LYNXCOFFMAGIC:         /* Shadows the m68k Lynx number below, sigh.  */
1900
      arch = bfd_arch_i386;
1901
      break;
1902
#endif
1903
#ifdef AMD64MAGIC
1904
    case AMD64MAGIC:
1905
      arch = bfd_arch_i386;
1906
      machine = bfd_mach_x86_64;
1907
      break;
1908
#endif
1909
#ifdef IA64MAGIC
1910
    case IA64MAGIC:
1911
      arch = bfd_arch_ia64;
1912
      break;
1913
#endif
1914
#ifdef ARMMAGIC
1915
    case ARMMAGIC:
1916
    case ARMPEMAGIC:
1917
    case THUMBPEMAGIC:
1918
      arch = bfd_arch_arm;
1919
      machine = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION);
1920
      if (machine == bfd_mach_arm_unknown)
1921
        {
1922
          switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK)
1923
            {
1924
            case F_ARM_2:  machine = bfd_mach_arm_2;  break;
1925
            case F_ARM_2a: machine = bfd_mach_arm_2a; break;
1926
            case F_ARM_3:  machine = bfd_mach_arm_3;  break;
1927
            default:
1928
            case F_ARM_3M: machine = bfd_mach_arm_3M; break;
1929
            case F_ARM_4:  machine = bfd_mach_arm_4;  break;
1930
            case F_ARM_4T: machine = bfd_mach_arm_4T; break;
1931
              /* The COFF header does not have enough bits available
1932
                 to cover all the different ARM architectures.  So
1933
                 we interpret F_ARM_5, the highest flag value to mean
1934
                 "the highest ARM architecture known to BFD" which is
1935
                 currently the XScale.  */
1936
            case F_ARM_5:  machine = bfd_mach_arm_XScale;  break;
1937
            }
1938
        }
1939
      break;
1940
#endif
1941
#ifdef MC68MAGIC
1942
    case MC68MAGIC:
1943
    case M68MAGIC:
1944
#ifdef MC68KBCSMAGIC
1945
    case MC68KBCSMAGIC:
1946
#endif
1947
#ifdef APOLLOM68KMAGIC
1948
    case APOLLOM68KMAGIC:
1949
#endif
1950
#ifdef LYNXCOFFMAGIC
1951
    case LYNXCOFFMAGIC:
1952
#endif
1953
      arch = bfd_arch_m68k;
1954
      machine = bfd_mach_m68020;
1955
      break;
1956
#endif
1957
#ifdef MAXQ20MAGIC
1958
    case MAXQ20MAGIC:
1959
      arch = bfd_arch_maxq;
1960
      switch (internal_f->f_flags & F_MACHMASK)
1961
        {
1962
        case F_MAXQ10:
1963
          machine = bfd_mach_maxq10;
1964
          break;
1965
        case F_MAXQ20:
1966
          machine = bfd_mach_maxq20;
1967
          break;
1968
        default:
1969
          return FALSE;
1970
        }
1971
      break;
1972
#endif
1973
#ifdef MC88MAGIC
1974
    case MC88MAGIC:
1975
    case MC88DMAGIC:
1976
    case MC88OMAGIC:
1977
      arch = bfd_arch_m88k;
1978
      machine = 88100;
1979
      break;
1980
#endif
1981
#ifdef Z80MAGIC
1982
    case Z80MAGIC:
1983
      arch = bfd_arch_z80;
1984
      switch (internal_f->f_flags & F_MACHMASK)
1985
        {
1986
        case 0:
1987
        case bfd_mach_z80strict << 12:
1988
        case bfd_mach_z80 << 12:
1989
        case bfd_mach_z80full << 12:
1990
        case bfd_mach_r800 << 12:
1991
          machine = ((unsigned)internal_f->f_flags & F_MACHMASK) >> 12;
1992
          break;
1993
        default:
1994
          return FALSE;
1995
        }
1996
      break;
1997
#endif
1998
#ifdef Z8KMAGIC
1999
    case Z8KMAGIC:
2000
      arch = bfd_arch_z8k;
2001
      switch (internal_f->f_flags & F_MACHMASK)
2002
        {
2003
        case F_Z8001:
2004
          machine = bfd_mach_z8001;
2005
          break;
2006
        case F_Z8002:
2007
          machine = bfd_mach_z8002;
2008
          break;
2009
        default:
2010
          return FALSE;
2011
        }
2012
      break;
2013
#endif
2014
#ifdef I860
2015
    case I860MAGIC:
2016
      arch = bfd_arch_i860;
2017
      break;
2018
#endif
2019
#ifdef I960
2020
#ifdef I960ROMAGIC
2021
    case I960ROMAGIC:
2022
    case I960RWMAGIC:
2023
      arch = bfd_arch_i960;
2024
      switch (F_I960TYPE & internal_f->f_flags)
2025
        {
2026
        default:
2027
        case F_I960CORE:
2028
          machine = bfd_mach_i960_core;
2029
          break;
2030
        case F_I960KB:
2031
          machine = bfd_mach_i960_kb_sb;
2032
          break;
2033
        case F_I960MC:
2034
          machine = bfd_mach_i960_mc;
2035
          break;
2036
        case F_I960XA:
2037
          machine = bfd_mach_i960_xa;
2038
          break;
2039
        case F_I960CA:
2040
          machine = bfd_mach_i960_ca;
2041
          break;
2042
        case F_I960KA:
2043
          machine = bfd_mach_i960_ka_sa;
2044
          break;
2045
        case F_I960JX:
2046
          machine = bfd_mach_i960_jx;
2047
          break;
2048
        case F_I960HX:
2049
          machine = bfd_mach_i960_hx;
2050
          break;
2051
        }
2052
      break;
2053
#endif
2054
#endif
2055
 
2056
#ifdef RS6000COFF_C
2057
#ifdef XCOFF64
2058
    case U64_TOCMAGIC:
2059
    case U803XTOCMAGIC:
2060
#else
2061
    case U802ROMAGIC:
2062
    case U802WRMAGIC:
2063
    case U802TOCMAGIC:
2064
#endif
2065
      {
2066
        int cputype;
2067
 
2068
        if (xcoff_data (abfd)->cputype != -1)
2069
          cputype = xcoff_data (abfd)->cputype & 0xff;
2070
        else
2071
          {
2072
            /* We did not get a value from the a.out header.  If the
2073
               file has not been stripped, we may be able to get the
2074
               architecture information from the first symbol, if it
2075
               is a .file symbol.  */
2076
            if (obj_raw_syment_count (abfd) == 0)
2077
              cputype = 0;
2078
            else
2079
              {
2080
                bfd_byte *buf;
2081
                struct internal_syment sym;
2082
                bfd_size_type amt = bfd_coff_symesz (abfd);
2083
 
2084
                buf = bfd_malloc (amt);
2085
                if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
2086
                    || bfd_bread (buf, amt, abfd) != amt)
2087
                  {
2088
                    free (buf);
2089
                    return FALSE;
2090
                  }
2091
                bfd_coff_swap_sym_in (abfd, buf, & sym);
2092
                if (sym.n_sclass == C_FILE)
2093
                  cputype = sym.n_type & 0xff;
2094
                else
2095
                  cputype = 0;
2096
                free (buf);
2097
              }
2098
          }
2099
 
2100
        /* FIXME: We don't handle all cases here.  */
2101
        switch (cputype)
2102
          {
2103
          default:
2104
          case 0:
2105
            arch = bfd_xcoff_architecture (abfd);
2106
            machine = bfd_xcoff_machine (abfd);
2107
            break;
2108
 
2109
          case 1:
2110
            arch = bfd_arch_powerpc;
2111
            machine = bfd_mach_ppc_601;
2112
            break;
2113
          case 2: /* 64 bit PowerPC */
2114
            arch = bfd_arch_powerpc;
2115
            machine = bfd_mach_ppc_620;
2116
            break;
2117
          case 3:
2118
            arch = bfd_arch_powerpc;
2119
            machine = bfd_mach_ppc;
2120
            break;
2121
          case 4:
2122
            arch = bfd_arch_rs6000;
2123
            machine = bfd_mach_rs6k;
2124
            break;
2125
          }
2126
      }
2127
      break;
2128
#endif
2129
 
2130
#ifdef WE32KMAGIC
2131
    case WE32KMAGIC:
2132
      arch = bfd_arch_we32k;
2133
      break;
2134
#endif
2135
 
2136
#ifdef H8300MAGIC
2137
    case H8300MAGIC:
2138
      arch = bfd_arch_h8300;
2139
      machine = bfd_mach_h8300;
2140
      /* !! FIXME this probably isn't the right place for this.  */
2141
      abfd->flags |= BFD_IS_RELAXABLE;
2142
      break;
2143
#endif
2144
 
2145
#ifdef H8300HMAGIC
2146
    case H8300HMAGIC:
2147
      arch = bfd_arch_h8300;
2148
      machine = bfd_mach_h8300h;
2149
      /* !! FIXME this probably isn't the right place for this.  */
2150
      abfd->flags |= BFD_IS_RELAXABLE;
2151
      break;
2152
#endif
2153
 
2154
#ifdef H8300SMAGIC
2155
    case H8300SMAGIC:
2156
      arch = bfd_arch_h8300;
2157
      machine = bfd_mach_h8300s;
2158
      /* !! FIXME this probably isn't the right place for this.  */
2159
      abfd->flags |= BFD_IS_RELAXABLE;
2160
      break;
2161
#endif
2162
 
2163
#ifdef H8300HNMAGIC
2164
    case H8300HNMAGIC:
2165
      arch = bfd_arch_h8300;
2166
      machine = bfd_mach_h8300hn;
2167
      /* !! FIXME this probably isn't the right place for this.  */
2168
      abfd->flags |= BFD_IS_RELAXABLE;
2169
      break;
2170
#endif
2171
 
2172
#ifdef H8300SNMAGIC
2173
    case H8300SNMAGIC:
2174
      arch = bfd_arch_h8300;
2175
      machine = bfd_mach_h8300sn;
2176
      /* !! FIXME this probably isn't the right place for this.  */
2177
      abfd->flags |= BFD_IS_RELAXABLE;
2178
      break;
2179
#endif
2180
 
2181
#ifdef SH_ARCH_MAGIC_BIG
2182
    case SH_ARCH_MAGIC_BIG:
2183
    case SH_ARCH_MAGIC_LITTLE:
2184
#ifdef COFF_WITH_PE
2185
    case SH_ARCH_MAGIC_WINCE:
2186
#endif
2187
      arch = bfd_arch_sh;
2188
      break;
2189
#endif
2190
 
2191
#ifdef MIPS_ARCH_MAGIC_WINCE
2192
    case MIPS_ARCH_MAGIC_WINCE:
2193
      arch = bfd_arch_mips;
2194
      break;
2195
#endif
2196
 
2197
#ifdef H8500MAGIC
2198
    case H8500MAGIC:
2199
      arch = bfd_arch_h8500;
2200
      break;
2201
#endif
2202
 
2203
#ifdef SPARCMAGIC
2204
    case SPARCMAGIC:
2205
#ifdef LYNXCOFFMAGIC
2206
    case LYNXCOFFMAGIC:
2207
#endif
2208
      arch = bfd_arch_sparc;
2209
      break;
2210
#endif
2211
 
2212
#ifdef TIC30MAGIC
2213
    case TIC30MAGIC:
2214
      arch = bfd_arch_tic30;
2215
      break;
2216
#endif
2217
 
2218
#ifdef TICOFF0MAGIC
2219
#ifdef TICOFF_TARGET_ARCH
2220
      /* This TI COFF section should be used by all new TI COFF v0 targets.  */
2221
    case TICOFF0MAGIC:
2222
      arch = TICOFF_TARGET_ARCH;
2223
      machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2224
      break;
2225
#endif
2226
#endif
2227
 
2228
#ifdef TICOFF1MAGIC
2229
      /* This TI COFF section should be used by all new TI COFF v1/2 targets.  */
2230
      /* TI COFF1 and COFF2 use the target_id field to specify which arch.  */
2231
    case TICOFF1MAGIC:
2232
    case TICOFF2MAGIC:
2233
      switch (internal_f->f_target_id)
2234
        {
2235
#ifdef TI_TARGET_ID
2236
        case TI_TARGET_ID:
2237
          arch = TICOFF_TARGET_ARCH;
2238
          machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2239
          break;
2240
#endif
2241
        default:
2242
          arch = bfd_arch_obscure;
2243
          (*_bfd_error_handler)
2244
            (_("Unrecognized TI COFF target id '0x%x'"),
2245
             internal_f->f_target_id);
2246
          break;
2247
        }
2248
      break;
2249
#endif
2250
 
2251
#ifdef TIC80_ARCH_MAGIC
2252
    case TIC80_ARCH_MAGIC:
2253
      arch = bfd_arch_tic80;
2254
      break;
2255
#endif
2256
 
2257
#ifdef MCOREMAGIC
2258
    case MCOREMAGIC:
2259
      arch = bfd_arch_mcore;
2260
      break;
2261
#endif
2262
 
2263
#ifdef W65MAGIC
2264
    case W65MAGIC:
2265
      arch = bfd_arch_w65;
2266
      break;
2267
#endif
2268
 
2269
    default:                    /* Unreadable input file type.  */
2270
      arch = bfd_arch_obscure;
2271
      break;
2272
    }
2273
 
2274
  bfd_default_set_arch_mach (abfd, arch, machine);
2275
  return TRUE;
2276
}
2277
 
2278
#ifdef SYMNAME_IN_DEBUG
2279
 
2280
static bfd_boolean
2281
symname_in_debug_hook (bfd * abfd ATTRIBUTE_UNUSED, struct internal_syment *sym)
2282
{
2283
  return SYMNAME_IN_DEBUG (sym) != 0;
2284
}
2285
 
2286
#else
2287
 
2288
#define symname_in_debug_hook \
2289
  (bfd_boolean (*) (bfd *, struct internal_syment *)) bfd_false
2290
 
2291
#endif
2292
 
2293
#ifdef RS6000COFF_C
2294
 
2295
#ifdef XCOFF64
2296
#define FORCE_SYMNAMES_IN_STRINGS
2297
#endif
2298
 
2299
/* Handle the csect auxent of a C_EXT or C_HIDEXT symbol.  */
2300
 
2301
static bfd_boolean
2302
coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED,
2303
                          combined_entry_type *table_base,
2304
                          combined_entry_type *symbol,
2305
                          unsigned int indaux,
2306
                          combined_entry_type *aux)
2307
{
2308
  int class = symbol->u.syment.n_sclass;
2309
 
2310
  if ((class == C_EXT || class == C_HIDEXT)
2311
      && indaux + 1 == symbol->u.syment.n_numaux)
2312
    {
2313
      if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
2314
        {
2315
          aux->u.auxent.x_csect.x_scnlen.p =
2316
            table_base + aux->u.auxent.x_csect.x_scnlen.l;
2317
          aux->fix_scnlen = 1;
2318
        }
2319
 
2320
      /* Return TRUE to indicate that the caller should not do any
2321
         further work on this auxent.  */
2322
      return TRUE;
2323
    }
2324
 
2325
  /* Return FALSE to indicate that this auxent should be handled by
2326
     the caller.  */
2327
  return FALSE;
2328
}
2329
 
2330
#else
2331
#ifdef I960
2332
 
2333
/* We don't want to pointerize bal entries.  */
2334
 
2335
static bfd_boolean
2336
coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED,
2337
                          combined_entry_type *table_base ATTRIBUTE_UNUSED,
2338
                          combined_entry_type *symbol,
2339
                          unsigned int indaux,
2340
                          combined_entry_type *aux ATTRIBUTE_UNUSED)
2341
{
2342
  /* Return TRUE if we don't want to pointerize this aux entry, which
2343
     is the case for the lastfirst aux entry for a C_LEAFPROC symbol.  */
2344
  return (indaux == 1
2345
          && (symbol->u.syment.n_sclass == C_LEAFPROC
2346
              || symbol->u.syment.n_sclass == C_LEAFSTAT
2347
              || symbol->u.syment.n_sclass == C_LEAFEXT));
2348
}
2349
 
2350
#else /* ! I960 */
2351
 
2352
#define coff_pointerize_aux_hook 0
2353
 
2354
#endif /* ! I960 */
2355
#endif /* ! RS6000COFF_C */
2356
 
2357
/* Print an aux entry.  This returns TRUE if it has printed it.  */
2358
 
2359
static bfd_boolean
2360
coff_print_aux (bfd *abfd ATTRIBUTE_UNUSED,
2361
                FILE *file ATTRIBUTE_UNUSED,
2362
                combined_entry_type *table_base ATTRIBUTE_UNUSED,
2363
                combined_entry_type *symbol ATTRIBUTE_UNUSED,
2364
                combined_entry_type *aux ATTRIBUTE_UNUSED,
2365
                unsigned int indaux ATTRIBUTE_UNUSED)
2366
{
2367
#ifdef RS6000COFF_C
2368
  if ((symbol->u.syment.n_sclass == C_EXT
2369
       || symbol->u.syment.n_sclass == C_HIDEXT)
2370
      && indaux + 1 == symbol->u.syment.n_numaux)
2371
    {
2372
      /* This is a csect entry.  */
2373
      fprintf (file, "AUX ");
2374
      if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD)
2375
        {
2376
          BFD_ASSERT (! aux->fix_scnlen);
2377
#ifdef XCOFF64
2378
          fprintf (file, "val %5lld",
2379
                   (long long) aux->u.auxent.x_csect.x_scnlen.l);
2380
#else
2381
          fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2382
#endif
2383
        }
2384
      else
2385
        {
2386
          fprintf (file, "indx ");
2387
          if (! aux->fix_scnlen)
2388
#ifdef XCOFF64
2389
            fprintf (file, "%4lld",
2390
                     (long long) aux->u.auxent.x_csect.x_scnlen.l);
2391
#else
2392
            fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2393
#endif
2394
          else
2395
            fprintf (file, "%4ld",
2396
                     (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base));
2397
        }
2398
      fprintf (file,
2399
               " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2400
               aux->u.auxent.x_csect.x_parmhash,
2401
               (unsigned int) aux->u.auxent.x_csect.x_snhash,
2402
               SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp),
2403
               SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp),
2404
               (unsigned int) aux->u.auxent.x_csect.x_smclas,
2405
               aux->u.auxent.x_csect.x_stab,
2406
               (unsigned int) aux->u.auxent.x_csect.x_snstab);
2407
      return TRUE;
2408
    }
2409
#endif
2410
 
2411
  /* Return FALSE to indicate that no special action was taken.  */
2412
  return FALSE;
2413
}
2414
 
2415
/*
2416
SUBSUBSECTION
2417
        Writing relocations
2418
 
2419
        To write relocations, the back end steps though the
2420
        canonical relocation table and create an
2421
        @code{internal_reloc}. The symbol index to use is removed from
2422
        the @code{offset} field in the symbol table supplied.  The
2423
        address comes directly from the sum of the section base
2424
        address and the relocation offset; the type is dug directly
2425
        from the howto field.  Then the @code{internal_reloc} is
2426
        swapped into the shape of an @code{external_reloc} and written
2427
        out to disk.
2428
 
2429
*/
2430
 
2431
#ifdef TARG_AUX
2432
 
2433
 
2434
/* AUX's ld wants relocations to be sorted.  */
2435
static int
2436
compare_arelent_ptr (const void * x, const void * y)
2437
{
2438
  const arelent **a = (const arelent **) x;
2439
  const arelent **b = (const arelent **) y;
2440
  bfd_size_type aadr = (*a)->address;
2441
  bfd_size_type badr = (*b)->address;
2442
 
2443
  return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
2444
}
2445
 
2446
#endif /* TARG_AUX */
2447
 
2448
static bfd_boolean
2449
coff_write_relocs (bfd * abfd, int first_undef)
2450
{
2451
  asection *s;
2452
 
2453
  for (s = abfd->sections; s != NULL; s = s->next)
2454
    {
2455
      unsigned int i;
2456
      struct external_reloc dst;
2457
      arelent **p;
2458
 
2459
#ifndef TARG_AUX
2460
      p = s->orelocation;
2461
#else
2462
      {
2463
        /* Sort relocations before we write them out.  */
2464
        bfd_size_type amt;
2465
 
2466
        amt = s->reloc_count;
2467
        amt *= sizeof (arelent *);
2468
        p = bfd_malloc (amt);
2469
        if (p == NULL && s->reloc_count > 0)
2470
          return FALSE;
2471
        memcpy (p, s->orelocation, (size_t) amt);
2472
        qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr);
2473
      }
2474
#endif
2475
 
2476
      if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0)
2477
        return FALSE;
2478
 
2479
#ifdef COFF_WITH_PE
2480
      if (obj_pe (abfd) && s->reloc_count >= 0xffff)
2481
        {
2482
          /* Encode real count here as first reloc.  */
2483
          struct internal_reloc n;
2484
 
2485
          memset (& n, 0, sizeof (n));
2486
          /* Add one to count *this* reloc (grr).  */
2487
          n.r_vaddr = s->reloc_count + 1;
2488
          coff_swap_reloc_out (abfd, &n, &dst);
2489
          if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd),
2490
                          abfd) != bfd_coff_relsz (abfd))
2491
            return FALSE;
2492
        }
2493
#endif
2494
 
2495
      for (i = 0; i < s->reloc_count; i++)
2496
        {
2497
          struct internal_reloc n;
2498
          arelent *q = p[i];
2499
 
2500
          memset (& n, 0, sizeof (n));
2501
 
2502
          /* Now we've renumbered the symbols we know where the
2503
             undefined symbols live in the table.  Check the reloc
2504
             entries for symbols who's output bfd isn't the right one.
2505
             This is because the symbol was undefined (which means
2506
             that all the pointers are never made to point to the same
2507
             place). This is a bad thing,'cause the symbols attached
2508
             to the output bfd are indexed, so that the relocation
2509
             entries know which symbol index they point to.  So we
2510
             have to look up the output symbol here.  */
2511
 
2512
          if (q->sym_ptr_ptr[0]->the_bfd != abfd)
2513
            {
2514
              int j;
2515
              const char *sname = q->sym_ptr_ptr[0]->name;
2516
              asymbol **outsyms = abfd->outsymbols;
2517
 
2518
              for (j = first_undef; outsyms[j]; j++)
2519
                {
2520
                  const char *intable = outsyms[j]->name;
2521
 
2522
                  if (strcmp (intable, sname) == 0)
2523
                    {
2524
                      /* Got a hit, so repoint the reloc.  */
2525
                      q->sym_ptr_ptr = outsyms + j;
2526
                      break;
2527
                    }
2528
                }
2529
            }
2530
 
2531
          n.r_vaddr = q->address + s->vma;
2532
 
2533
#ifdef R_IHCONST
2534
          /* The 29k const/consth reloc pair is a real kludge.  The consth
2535
             part doesn't have a symbol; it has an offset.  So rebuilt
2536
             that here.  */
2537
          if (q->howto->type == R_IHCONST)
2538
            n.r_symndx = q->addend;
2539
          else
2540
#endif
2541
            if (q->sym_ptr_ptr)
2542
              {
2543
#ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2544
                if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q, s))
2545
#else
2546
                if ((*q->sym_ptr_ptr)->section == bfd_abs_section_ptr
2547
                    && ((*q->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0)
2548
#endif
2549
                  /* This is a relocation relative to the absolute symbol.  */
2550
                  n.r_symndx = -1;
2551
                else
2552
                  {
2553
                    n.r_symndx = get_index ((*(q->sym_ptr_ptr)));
2554
                    /* Check to see if the symbol reloc points to a symbol
2555
                       we don't have in our symbol table.  */
2556
                    if (n.r_symndx > obj_conv_table_size (abfd))
2557
                      {
2558
                        bfd_set_error (bfd_error_bad_value);
2559
                        _bfd_error_handler (_("%B: reloc against a non-existant symbol index: %ld"),
2560
                                            abfd, n.r_symndx);
2561
                        return FALSE;
2562
                      }
2563
                  }
2564
              }
2565
 
2566
#ifdef SWAP_OUT_RELOC_OFFSET
2567
          n.r_offset = q->addend;
2568
#endif
2569
 
2570
#ifdef SELECT_RELOC
2571
          /* Work out reloc type from what is required.  */
2572
          SELECT_RELOC (n, q->howto);
2573
#else
2574
          n.r_type = q->howto->type;
2575
#endif
2576
          coff_swap_reloc_out (abfd, &n, &dst);
2577
 
2578
          if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd),
2579
                         abfd) != bfd_coff_relsz (abfd))
2580
            return FALSE;
2581
        }
2582
 
2583
#ifdef TARG_AUX
2584
      if (p != NULL)
2585
        free (p);
2586
#endif
2587
    }
2588
 
2589
  return TRUE;
2590
}
2591
 
2592
/* Set flags and magic number of a coff file from architecture and machine
2593
   type.  Result is TRUE if we can represent the arch&type, FALSE if not.  */
2594
 
2595
static bfd_boolean
2596
coff_set_flags (bfd * abfd,
2597
                unsigned int *magicp ATTRIBUTE_UNUSED,
2598
                unsigned short *flagsp ATTRIBUTE_UNUSED)
2599
{
2600
  switch (bfd_get_arch (abfd))
2601
    {
2602
#ifdef Z80MAGIC
2603
    case bfd_arch_z80:
2604
      *magicp = Z80MAGIC;
2605
      switch (bfd_get_mach (abfd))
2606
        {
2607
        case 0:
2608
        case bfd_mach_z80strict:
2609
        case bfd_mach_z80:
2610
        case bfd_mach_z80full:
2611
        case bfd_mach_r800:
2612
          *flagsp = bfd_get_mach (abfd) << 12;
2613
          break;
2614
        default:
2615
          return FALSE;
2616
        }
2617
      return TRUE;
2618
#endif
2619
 
2620
#ifdef Z8KMAGIC
2621
    case bfd_arch_z8k:
2622
      *magicp = Z8KMAGIC;
2623
 
2624
      switch (bfd_get_mach (abfd))
2625
        {
2626
        case bfd_mach_z8001: *flagsp = F_Z8001; break;
2627
        case bfd_mach_z8002: *flagsp = F_Z8002; break;
2628
        default:             return FALSE;
2629
        }
2630
      return TRUE;
2631
#endif
2632
 
2633
#ifdef I960ROMAGIC
2634
    case bfd_arch_i960:
2635
 
2636
      {
2637
        unsigned flags;
2638
 
2639
        *magicp = I960ROMAGIC;
2640
 
2641
        switch (bfd_get_mach (abfd))
2642
          {
2643
          case bfd_mach_i960_core:  flags = F_I960CORE; break;
2644
          case bfd_mach_i960_kb_sb: flags = F_I960KB;   break;
2645
          case bfd_mach_i960_mc:    flags = F_I960MC;   break;
2646
          case bfd_mach_i960_xa:    flags = F_I960XA;   break;
2647
          case bfd_mach_i960_ca:    flags = F_I960CA;   break;
2648
          case bfd_mach_i960_ka_sa: flags = F_I960KA;   break;
2649
          case bfd_mach_i960_jx:    flags = F_I960JX;   break;
2650
          case bfd_mach_i960_hx:    flags = F_I960HX;   break;
2651
          default:                  return FALSE;
2652
          }
2653
        *flagsp = flags;
2654
        return TRUE;
2655
      }
2656
      break;
2657
#endif
2658
 
2659
#ifdef TIC30MAGIC
2660
    case bfd_arch_tic30:
2661
      *magicp = TIC30MAGIC;
2662
      return TRUE;
2663
#endif
2664
 
2665
#ifdef TICOFF_DEFAULT_MAGIC
2666
    case TICOFF_TARGET_ARCH:
2667
      /* If there's no indication of which version we want, use the default.  */
2668
      if (!abfd->xvec )
2669
        *magicp = TICOFF_DEFAULT_MAGIC;
2670
      else
2671
        {
2672
          /* We may want to output in a different COFF version.  */
2673
          switch (abfd->xvec->name[4])
2674
            {
2675
            case '0':
2676
              *magicp = TICOFF0MAGIC;
2677
              break;
2678
            case '1':
2679
              *magicp = TICOFF1MAGIC;
2680
              break;
2681
            case '2':
2682
              *magicp = TICOFF2MAGIC;
2683
              break;
2684
            default:
2685
              return FALSE;
2686
            }
2687
        }
2688
      TICOFF_TARGET_MACHINE_SET (flagsp, bfd_get_mach (abfd));
2689
      return TRUE;
2690
#endif
2691
 
2692
#ifdef TIC80_ARCH_MAGIC
2693
    case bfd_arch_tic80:
2694
      *magicp = TIC80_ARCH_MAGIC;
2695
      return TRUE;
2696
#endif
2697
 
2698
#ifdef ARMMAGIC
2699
    case bfd_arch_arm:
2700
#ifdef ARM_WINCE
2701
      * magicp = ARMPEMAGIC;
2702
#else
2703
      * magicp = ARMMAGIC;
2704
#endif
2705
      * flagsp = 0;
2706
      if (APCS_SET (abfd))
2707
        {
2708
          if (APCS_26_FLAG (abfd))
2709
            * flagsp |= F_APCS26;
2710
 
2711
          if (APCS_FLOAT_FLAG (abfd))
2712
            * flagsp |= F_APCS_FLOAT;
2713
 
2714
          if (PIC_FLAG (abfd))
2715
            * flagsp |= F_PIC;
2716
        }
2717
      if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd))
2718
        * flagsp |= F_INTERWORK;
2719
      switch (bfd_get_mach (abfd))
2720
        {
2721
        case bfd_mach_arm_2:  * flagsp |= F_ARM_2;  break;
2722
        case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break;
2723
        case bfd_mach_arm_3:  * flagsp |= F_ARM_3;  break;
2724
        case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break;
2725
        case bfd_mach_arm_4:  * flagsp |= F_ARM_4;  break;
2726
        case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break;
2727
        case bfd_mach_arm_5:  * flagsp |= F_ARM_5;  break;
2728
          /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2729
             See also the comment in coff_set_arch_mach_hook().  */
2730
        case bfd_mach_arm_5T: * flagsp |= F_ARM_5;  break;
2731
        case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break;
2732
        case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break;
2733
        }
2734
      return TRUE;
2735
#endif
2736
 
2737
#ifdef PPCMAGIC
2738
    case bfd_arch_powerpc:
2739
      *magicp = PPCMAGIC;
2740
      return TRUE;
2741
#endif
2742
 
2743
#if defined(I386MAGIC) || defined(AMD64MAGIC)
2744
    case bfd_arch_i386:
2745
#if defined(I386MAGIC)
2746
      *magicp = I386MAGIC;
2747
#endif
2748
#if defined LYNXOS
2749
      /* Just overwrite the usual value if we're doing Lynx.  */
2750
      *magicp = LYNXCOFFMAGIC;
2751
#endif
2752
#if defined AMD64MAGIC
2753
      *magicp = AMD64MAGIC;
2754
#endif
2755
      return TRUE;
2756
#endif
2757
 
2758
#ifdef I860MAGIC
2759
    case bfd_arch_i860:
2760
      *magicp = I860MAGIC;
2761
      return TRUE;
2762
#endif
2763
 
2764
#ifdef IA64MAGIC
2765
    case bfd_arch_ia64:
2766
      *magicp = IA64MAGIC;
2767
      return TRUE;
2768
#endif
2769
 
2770
#ifdef MC68MAGIC
2771
    case bfd_arch_m68k:
2772
#ifdef APOLLOM68KMAGIC
2773
      *magicp = APOLLO_COFF_VERSION_NUMBER;
2774
#else
2775
      /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c.  */
2776
#ifdef NAMES_HAVE_UNDERSCORE
2777
      *magicp = MC68KBCSMAGIC;
2778
#else
2779
      *magicp = MC68MAGIC;
2780
#endif
2781
#endif
2782
#ifdef LYNXOS
2783
      /* Just overwrite the usual value if we're doing Lynx.  */
2784
      *magicp = LYNXCOFFMAGIC;
2785
#endif
2786
      return TRUE;
2787
#endif
2788
 
2789
#ifdef MC88MAGIC
2790
    case bfd_arch_m88k:
2791
      *magicp = MC88OMAGIC;
2792
      return TRUE;
2793
#endif
2794
 
2795
#ifdef H8300MAGIC
2796
    case bfd_arch_h8300:
2797
      switch (bfd_get_mach (abfd))
2798
        {
2799
        case bfd_mach_h8300:   *magicp = H8300MAGIC;   return TRUE;
2800
        case bfd_mach_h8300h:  *magicp = H8300HMAGIC;  return TRUE;
2801
        case bfd_mach_h8300s:  *magicp = H8300SMAGIC;  return TRUE;
2802
        case bfd_mach_h8300hn: *magicp = H8300HNMAGIC; return TRUE;
2803
        case bfd_mach_h8300sn: *magicp = H8300SNMAGIC; return TRUE;
2804
        default: break;
2805
        }
2806
      break;
2807
#endif
2808
 
2809
#ifdef SH_ARCH_MAGIC_BIG
2810
    case bfd_arch_sh:
2811
#ifdef COFF_IMAGE_WITH_PE
2812
      *magicp = SH_ARCH_MAGIC_WINCE;
2813
#else
2814
      if (bfd_big_endian (abfd))
2815
        *magicp = SH_ARCH_MAGIC_BIG;
2816
      else
2817
        *magicp = SH_ARCH_MAGIC_LITTLE;
2818
#endif
2819
      return TRUE;
2820
#endif
2821
 
2822
#ifdef MIPS_ARCH_MAGIC_WINCE
2823
    case bfd_arch_mips:
2824
      *magicp = MIPS_ARCH_MAGIC_WINCE;
2825
      return TRUE;
2826
#endif
2827
 
2828
#ifdef SPARCMAGIC
2829
    case bfd_arch_sparc:
2830
      *magicp = SPARCMAGIC;
2831
#ifdef LYNXOS
2832
      /* Just overwrite the usual value if we're doing Lynx.  */
2833
      *magicp = LYNXCOFFMAGIC;
2834
#endif
2835
      return TRUE;
2836
#endif
2837
 
2838
#ifdef H8500MAGIC
2839
    case bfd_arch_h8500:
2840
      *magicp = H8500MAGIC;
2841
      return TRUE;
2842
      break;
2843
#endif
2844
 
2845
#ifdef WE32KMAGIC
2846
    case bfd_arch_we32k:
2847
      *magicp = WE32KMAGIC;
2848
      return TRUE;
2849
#endif
2850
 
2851
#ifdef RS6000COFF_C
2852
    case bfd_arch_rs6000:
2853
#ifndef PPCMAGIC
2854
    case bfd_arch_powerpc:
2855
#endif
2856
      BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
2857
      *magicp = bfd_xcoff_magic_number (abfd);
2858
      return TRUE;
2859
#endif
2860
 
2861
#ifdef MCOREMAGIC
2862
    case bfd_arch_mcore:
2863
      * magicp = MCOREMAGIC;
2864
      return TRUE;
2865
#endif
2866
 
2867
#ifdef W65MAGIC
2868
    case bfd_arch_w65:
2869
      *magicp = W65MAGIC;
2870
      return TRUE;
2871
#endif
2872
 
2873
#ifdef OR32_MAGIC_BIG
2874
    case bfd_arch_or32:
2875
      if (bfd_big_endian (abfd))
2876
        * magicp = OR32_MAGIC_BIG;
2877
      else
2878
        * magicp = OR32_MAGIC_LITTLE;
2879
      return TRUE;
2880
#endif
2881
 
2882
#ifdef MAXQ20MAGIC
2883
    case bfd_arch_maxq:
2884
      * magicp = MAXQ20MAGIC;
2885
      switch (bfd_get_mach (abfd))
2886
        {
2887
        case bfd_mach_maxq10: * flagsp = F_MAXQ10; return TRUE;
2888
        case bfd_mach_maxq20: * flagsp = F_MAXQ20; return TRUE;
2889
        default:              return FALSE;
2890
        }
2891
#endif
2892
 
2893
    default:                    /* Unknown architecture.  */
2894
      /* Fall through to "return FALSE" below, to avoid
2895
         "statement never reached" errors on the one below.  */
2896
      break;
2897
    }
2898
 
2899
  return FALSE;
2900
}
2901
 
2902
static bfd_boolean
2903
coff_set_arch_mach (bfd * abfd,
2904
                    enum bfd_architecture arch,
2905
                    unsigned long machine)
2906
{
2907
  unsigned dummy1;
2908
  unsigned short dummy2;
2909
 
2910
  if (! bfd_default_set_arch_mach (abfd, arch, machine))
2911
    return FALSE;
2912
 
2913
  if (arch != bfd_arch_unknown
2914
      && ! coff_set_flags (abfd, &dummy1, &dummy2))
2915
    return FALSE;               /* We can't represent this type.  */
2916
 
2917
  return TRUE;                  /* We're easy...  */
2918
}
2919
 
2920
#ifdef COFF_IMAGE_WITH_PE
2921
 
2922
/* This is used to sort sections by VMA, as required by PE image
2923
   files.  */
2924
 
2925
static int
2926
sort_by_secaddr (const void * arg1, const void * arg2)
2927
{
2928
  const asection *a = *(const asection **) arg1;
2929
  const asection *b = *(const asection **) arg2;
2930
 
2931
  if (a->vma < b->vma)
2932
    return -1;
2933
  else if (a->vma > b->vma)
2934
    return 1;
2935
 
2936
  return 0;
2937
}
2938
 
2939
#endif /* COFF_IMAGE_WITH_PE */
2940
 
2941
/* Calculate the file position for each section.  */
2942
 
2943
#ifndef I960
2944
#define ALIGN_SECTIONS_IN_FILE
2945
#endif
2946
#if defined(TIC80COFF) || defined(TICOFF)
2947
#undef ALIGN_SECTIONS_IN_FILE
2948
#endif
2949
 
2950
static bfd_boolean
2951
coff_compute_section_file_positions (bfd * abfd)
2952
{
2953
  asection *current;
2954
  asection *previous = NULL;
2955
  file_ptr sofar = bfd_coff_filhsz (abfd);
2956
  bfd_boolean align_adjust;
2957
#ifdef ALIGN_SECTIONS_IN_FILE
2958
  file_ptr old_sofar;
2959
#endif
2960
 
2961
#ifdef RS6000COFF_C
2962
  /* On XCOFF, if we have symbols, set up the .debug section.  */
2963
  if (bfd_get_symcount (abfd) > 0)
2964
    {
2965
      bfd_size_type sz;
2966
      bfd_size_type i, symcount;
2967
      asymbol **symp;
2968
 
2969
      sz = 0;
2970
      symcount = bfd_get_symcount (abfd);
2971
      for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++)
2972
        {
2973
          coff_symbol_type *cf;
2974
 
2975
          cf = coff_symbol_from (abfd, *symp);
2976
          if (cf != NULL
2977
              && cf->native != NULL
2978
              && SYMNAME_IN_DEBUG (&cf->native->u.syment))
2979
            {
2980
              size_t len;
2981
 
2982
              len = strlen (bfd_asymbol_name (*symp));
2983
              if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd))
2984
                sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd);
2985
            }
2986
        }
2987
      if (sz > 0)
2988
        {
2989
          asection *dsec;
2990
 
2991
          dsec = bfd_make_section_old_way (abfd, DOT_DEBUG);
2992
          if (dsec == NULL)
2993
            abort ();
2994
          dsec->size = sz;
2995
          dsec->flags |= SEC_HAS_CONTENTS;
2996
        }
2997
    }
2998
#endif
2999
 
3000
#ifdef COFF_IMAGE_WITH_PE
3001
  int page_size;
3002
 
3003
  if (coff_data (abfd)->link_info)
3004
    {
3005
      page_size = pe_data (abfd)->pe_opthdr.FileAlignment;
3006
 
3007
      /* If no file alignment has been set, default to one.
3008
         This repairs 'ld -r' for arm-wince-pe target.  */
3009
      if (page_size == 0)
3010
        page_size = 1;
3011
    }
3012
  else
3013
    page_size = PE_DEF_FILE_ALIGNMENT;
3014
#else
3015
#ifdef COFF_PAGE_SIZE
3016
  int page_size = COFF_PAGE_SIZE;
3017
#endif
3018
#endif
3019
 
3020
  if (bfd_get_start_address (abfd))
3021
    /*  A start address may have been added to the original file. In this
3022
        case it will need an optional header to record it.  */
3023
    abfd->flags |= EXEC_P;
3024
 
3025
  if (abfd->flags & EXEC_P)
3026
    sofar += bfd_coff_aoutsz (abfd);
3027
#ifdef RS6000COFF_C
3028
  else if (xcoff_data (abfd)->full_aouthdr)
3029
    sofar += bfd_coff_aoutsz (abfd);
3030
  else
3031
    sofar += SMALL_AOUTSZ;
3032
#endif
3033
 
3034
  sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
3035
 
3036
#ifdef RS6000COFF_C
3037
  /* XCOFF handles overflows in the reloc and line number count fields
3038
     by allocating a new section header to hold the correct counts.  */
3039
  for (current = abfd->sections; current != NULL; current = current->next)
3040
    if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3041
      sofar += bfd_coff_scnhsz (abfd);
3042
#endif
3043
 
3044
#ifdef COFF_IMAGE_WITH_PE
3045
  {
3046
    /* PE requires the sections to be in memory order when listed in
3047
       the section headers.  It also does not like empty loadable
3048
       sections.  The sections apparently do not have to be in the
3049
       right order in the image file itself, but we do need to get the
3050
       target_index values right.  */
3051
 
3052
    unsigned int count;
3053
    asection **section_list;
3054
    unsigned int i;
3055
    int target_index;
3056
    bfd_size_type amt;
3057
 
3058
    count = 0;
3059
    for (current = abfd->sections; current != NULL; current = current->next)
3060
      ++count;
3061
 
3062
    /* We allocate an extra cell to simplify the final loop.  */
3063
    amt = sizeof (struct asection *) * (count + 1);
3064
    section_list = bfd_malloc (amt);
3065
    if (section_list == NULL)
3066
      return FALSE;
3067
 
3068
    i = 0;
3069
    for (current = abfd->sections; current != NULL; current = current->next)
3070
      {
3071
        section_list[i] = current;
3072
        ++i;
3073
      }
3074
    section_list[i] = NULL;
3075
 
3076
    qsort (section_list, count, sizeof (asection *), sort_by_secaddr);
3077
 
3078
    /* Rethread the linked list into sorted order; at the same time,
3079
       assign target_index values.  */
3080
    target_index = 1;
3081
    abfd->sections = NULL;
3082
    abfd->section_last = NULL;
3083
    for (i = 0; i < count; i++)
3084
      {
3085
        current = section_list[i];
3086
        bfd_section_list_append (abfd, current);
3087
 
3088
        /* Later, if the section has zero size, we'll be throwing it
3089
           away, so we don't want to number it now.  Note that having
3090
           a zero size and having real contents are different
3091
           concepts: .bss has no contents, but (usually) non-zero
3092
           size.  */
3093
        if (current->size == 0)
3094
          {
3095
            /* Discard.  However, it still might have (valid) symbols
3096
               in it, so arbitrarily set it to section 1 (indexing is
3097
               1-based here; usually .text).  __end__ and other
3098
               contents of .endsection really have this happen.
3099
               FIXME: This seems somewhat dubious.  */
3100
            current->target_index = 1;
3101
          }
3102
        else
3103
          current->target_index = target_index++;
3104
      }
3105
 
3106
    free (section_list);
3107
  }
3108
#else /* ! COFF_IMAGE_WITH_PE */
3109
  {
3110
    /* Set the target_index field.  */
3111
    int target_index;
3112
 
3113
    target_index = 1;
3114
    for (current = abfd->sections; current != NULL; current = current->next)
3115
      current->target_index = target_index++;
3116
  }
3117
#endif /* ! COFF_IMAGE_WITH_PE */
3118
 
3119
  align_adjust = FALSE;
3120
  for (current = abfd->sections;
3121
       current != NULL;
3122
       current = current->next)
3123
    {
3124
#ifdef COFF_IMAGE_WITH_PE
3125
      /* With PE we have to pad each section to be a multiple of its
3126
         page size too, and remember both sizes.  */
3127
      if (coff_section_data (abfd, current) == NULL)
3128
        {
3129
          bfd_size_type amt = sizeof (struct coff_section_tdata);
3130
 
3131
          current->used_by_bfd = bfd_zalloc (abfd, amt);
3132
          if (current->used_by_bfd == NULL)
3133
            return FALSE;
3134
        }
3135
      if (pei_section_data (abfd, current) == NULL)
3136
        {
3137
          bfd_size_type amt = sizeof (struct pei_section_tdata);
3138
 
3139
          coff_section_data (abfd, current)->tdata = bfd_zalloc (abfd, amt);
3140
          if (coff_section_data (abfd, current)->tdata == NULL)
3141
            return FALSE;
3142
        }
3143
      if (pei_section_data (abfd, current)->virt_size == 0)
3144
        pei_section_data (abfd, current)->virt_size = current->size;
3145
#endif
3146
 
3147
      /* Only deal with sections which have contents.  */
3148
      if (!(current->flags & SEC_HAS_CONTENTS))
3149
        continue;
3150
 
3151
#ifdef COFF_IMAGE_WITH_PE
3152
      /* Make sure we skip empty sections in a PE image.  */
3153
      if (current->size == 0)
3154
        continue;
3155
#endif
3156
 
3157
      /* Align the sections in the file to the same boundary on
3158
         which they are aligned in virtual memory.  I960 doesn't
3159
         do this (FIXME) so we can stay in sync with Intel.  960
3160
         doesn't yet page from files...  */
3161
#ifdef ALIGN_SECTIONS_IN_FILE
3162
      if ((abfd->flags & EXEC_P) != 0)
3163
        {
3164
          /* Make sure this section is aligned on the right boundary - by
3165
             padding the previous section up if necessary.  */
3166
          old_sofar = sofar;
3167
 
3168
#ifdef RS6000COFF_C
3169
          /* AIX loader checks the text section alignment of (vma - filepos)
3170
             So even though the filepos may be aligned wrt the o_algntext, for
3171
             AIX executables, this check fails. This shows up when a native
3172
             AIX executable is stripped with gnu strip because the default vma
3173
             of native is 0x10000150 but default for gnu is 0x10000140.  Gnu
3174
             stripped gnu excutable passes this check because the filepos is
3175
             0x0140.  This problem also show up with 64 bit shared objects. The
3176
             data section must also be aligned.  */
3177
          if (!strcmp (current->name, _TEXT)
3178
              || !strcmp (current->name, _DATA))
3179
            {
3180
              bfd_vma pad;
3181
              bfd_vma align;
3182
 
3183
              sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3184
 
3185
              align = 1 << current->alignment_power;
3186
              pad = abs (current->vma - sofar) % align;
3187
 
3188
              if (pad)
3189
                {
3190
                  pad = align - pad;
3191
                  sofar += pad;
3192
                }
3193
            }
3194
          else
3195
#else
3196
            {
3197
              sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3198
            }
3199
#endif
3200
          if (previous != NULL)
3201
            previous->size += sofar - old_sofar;
3202
        }
3203
 
3204
#endif
3205
 
3206
      /* In demand paged files the low order bits of the file offset
3207
         must match the low order bits of the virtual address.  */
3208
#ifdef COFF_PAGE_SIZE
3209
      if ((abfd->flags & D_PAGED) != 0
3210
          && (current->flags & SEC_ALLOC) != 0)
3211
        sofar += (current->vma - (bfd_vma) sofar) % page_size;
3212
#endif
3213
      current->filepos = sofar;
3214
 
3215
#ifdef COFF_IMAGE_WITH_PE
3216
      /* Set the padded size.  */
3217
      current->size = (current->size + page_size -1) & -page_size;
3218
#endif
3219
 
3220
      sofar += current->size;
3221
 
3222
#ifdef ALIGN_SECTIONS_IN_FILE
3223
      /* Make sure that this section is of the right size too.  */
3224
      if ((abfd->flags & EXEC_P) == 0)
3225
        {
3226
          bfd_size_type old_size;
3227
 
3228
          old_size = current->size;
3229
          current->size = BFD_ALIGN (current->size,
3230
                                     1 << current->alignment_power);
3231
          align_adjust = current->size != old_size;
3232
          sofar += current->size - old_size;
3233
        }
3234
      else
3235
        {
3236
          old_sofar = sofar;
3237
          sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3238
          align_adjust = sofar != old_sofar;
3239
          current->size += sofar - old_sofar;
3240
        }
3241
#endif
3242
 
3243
#ifdef COFF_IMAGE_WITH_PE
3244
      /* For PE we need to make sure we pad out to the aligned
3245
         size, in case the caller only writes out data to the
3246
         unaligned size.  */
3247
      if (pei_section_data (abfd, current)->virt_size < current->size)
3248
        align_adjust = TRUE;
3249
#endif
3250
 
3251
#ifdef _LIB
3252
      /* Force .lib sections to start at zero.  The vma is then
3253
         incremented in coff_set_section_contents.  This is right for
3254
         SVR3.2.  */
3255
      if (strcmp (current->name, _LIB) == 0)
3256
        bfd_set_section_vma (abfd, current, 0);
3257
#endif
3258
 
3259
      previous = current;
3260
    }
3261
 
3262
  /* It is now safe to write to the output file.  If we needed an
3263
     alignment adjustment for the last section, then make sure that
3264
     there is a byte at offset sofar.  If there are no symbols and no
3265
     relocs, then nothing follows the last section.  If we don't force
3266
     the last byte out, then the file may appear to be truncated.  */
3267
  if (align_adjust)
3268
    {
3269
      bfd_byte b;
3270
 
3271
      b = 0;
3272
      if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0
3273
          || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
3274
        return FALSE;
3275
    }
3276
 
3277
  /* Make sure the relocations are aligned.  We don't need to make
3278
     sure that this byte exists, because it will only matter if there
3279
     really are relocs.  */
3280
  sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER);
3281
 
3282
  obj_relocbase (abfd) = sofar;
3283
  abfd->output_has_begun = TRUE;
3284
 
3285
  return TRUE;
3286
}
3287
 
3288
#ifdef COFF_IMAGE_WITH_PE
3289
 
3290
static unsigned int pelength;
3291
static unsigned int peheader;
3292
 
3293
static bfd_boolean
3294
coff_read_word (bfd *abfd, unsigned int *value)
3295
{
3296
  unsigned char b[2];
3297
  int status;
3298
 
3299
  status = bfd_bread (b, (bfd_size_type) 2, abfd);
3300
  if (status < 1)
3301
    {
3302
      *value = 0;
3303
      return FALSE;
3304
    }
3305
 
3306
  if (status == 1)
3307
    *value = (unsigned int) b[0];
3308
  else
3309
    *value = (unsigned int) (b[0] + (b[1] << 8));
3310
 
3311
  pelength += (unsigned int) status;
3312
 
3313
  return TRUE;
3314
}
3315
 
3316
static unsigned int
3317
coff_compute_checksum (bfd *abfd)
3318
{
3319
  bfd_boolean more_data;
3320
  file_ptr filepos;
3321
  unsigned int value;
3322
  unsigned int total;
3323
 
3324
  total = 0;
3325
  pelength = 0;
3326
  filepos = (file_ptr) 0;
3327
 
3328
  do
3329
    {
3330
      if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
3331
        return 0;
3332
 
3333
      more_data = coff_read_word (abfd, &value);
3334
      total += value;
3335
      total = 0xffff & (total + (total >> 0x10));
3336
      filepos += 2;
3337
    }
3338
  while (more_data);
3339
 
3340
  return (0xffff & (total + (total >> 0x10)));
3341
}
3342
 
3343
static bfd_boolean
3344
coff_apply_checksum (bfd *abfd)
3345
{
3346
  unsigned int computed;
3347
  unsigned int checksum = 0;
3348
 
3349
  if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0)
3350
    return FALSE;
3351
 
3352
  if (!coff_read_word (abfd, &peheader))
3353
    return FALSE;
3354
 
3355
  if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3356
    return FALSE;
3357
 
3358
  checksum = 0;
3359
  bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3360
 
3361
  if (bfd_seek (abfd, peheader, SEEK_SET) != 0)
3362
    return FALSE;
3363
 
3364
  computed = coff_compute_checksum (abfd);
3365
 
3366
  checksum = computed + pelength;
3367
 
3368
  if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3369
    return FALSE;
3370
 
3371
  bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3372
 
3373
  return TRUE;
3374
}
3375
 
3376
#endif /* COFF_IMAGE_WITH_PE */
3377
 
3378
static bfd_boolean
3379
coff_write_object_contents (bfd * abfd)
3380
{
3381
  asection *current;
3382
  bfd_boolean hasrelocs = FALSE;
3383
  bfd_boolean haslinno = FALSE;
3384
  bfd_boolean hasdebug = FALSE;
3385
  file_ptr scn_base;
3386
  file_ptr reloc_base;
3387
  file_ptr lineno_base;
3388
  file_ptr sym_base;
3389
  unsigned long reloc_size = 0, reloc_count = 0;
3390
  unsigned long lnno_size = 0;
3391
  bfd_boolean long_section_names;
3392
  asection *text_sec = NULL;
3393
  asection *data_sec = NULL;
3394
  asection *bss_sec = NULL;
3395
  struct internal_filehdr internal_f;
3396
  struct internal_aouthdr internal_a;
3397
#ifdef COFF_LONG_SECTION_NAMES
3398
  size_t string_size = STRING_SIZE_SIZE;
3399
#endif
3400
 
3401
  bfd_set_error (bfd_error_system_call);
3402
 
3403
  /* Make a pass through the symbol table to count line number entries and
3404
     put them into the correct asections.  */
3405
  lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd);
3406
 
3407
  if (! abfd->output_has_begun)
3408
    {
3409
      if (! coff_compute_section_file_positions (abfd))
3410
        return FALSE;
3411
    }
3412
 
3413
  reloc_base = obj_relocbase (abfd);
3414
 
3415
  /* Work out the size of the reloc and linno areas.  */
3416
 
3417
  for (current = abfd->sections; current != NULL; current =
3418
       current->next)
3419
    {
3420
#ifdef COFF_WITH_PE
3421
      /* We store the actual reloc count in the first reloc's addr.  */
3422
      if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3423
        reloc_count ++;
3424
#endif
3425
      reloc_count += current->reloc_count;
3426
    }
3427
 
3428
  reloc_size = reloc_count * bfd_coff_relsz (abfd);
3429
 
3430
  lineno_base = reloc_base + reloc_size;
3431
  sym_base = lineno_base + lnno_size;
3432
 
3433
  /* Indicate in each section->line_filepos its actual file address.  */
3434
  for (current = abfd->sections; current != NULL; current =
3435
       current->next)
3436
    {
3437
      if (current->lineno_count)
3438
        {
3439
          current->line_filepos = lineno_base;
3440
          current->moving_line_filepos = lineno_base;
3441
          lineno_base += current->lineno_count * bfd_coff_linesz (abfd);
3442
        }
3443
      else
3444
        current->line_filepos = 0;
3445
 
3446
      if (current->reloc_count)
3447
        {
3448
          current->rel_filepos = reloc_base;
3449
          reloc_base += current->reloc_count * bfd_coff_relsz (abfd);
3450
#ifdef COFF_WITH_PE
3451
          /* Extra reloc to hold real count.  */
3452
          if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3453
            reloc_base += bfd_coff_relsz (abfd);
3454
#endif
3455
        }
3456
      else
3457
        current->rel_filepos = 0;
3458
    }
3459
 
3460
  /* Write section headers to the file.  */
3461
  internal_f.f_nscns = 0;
3462
 
3463
  if ((abfd->flags & EXEC_P) != 0)
3464
    scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
3465
  else
3466
    {
3467
      scn_base = bfd_coff_filhsz (abfd);
3468
#ifdef RS6000COFF_C
3469
#ifndef XCOFF64
3470
      if (xcoff_data (abfd)->full_aouthdr)
3471
        scn_base += bfd_coff_aoutsz (abfd);
3472
      else
3473
        scn_base += SMALL_AOUTSZ;
3474
#endif
3475
#endif
3476
    }
3477
 
3478
  if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
3479
    return FALSE;
3480
 
3481
  long_section_names = FALSE;
3482
  for (current = abfd->sections;
3483
       current != NULL;
3484
       current = current->next)
3485
    {
3486
      struct internal_scnhdr section;
3487
      bfd_boolean is_reloc_section = FALSE;
3488
 
3489
#ifdef COFF_IMAGE_WITH_PE
3490
      if (strcmp (current->name, ".reloc") == 0)
3491
        {
3492
          is_reloc_section = TRUE;
3493
          hasrelocs = TRUE;
3494
          pe_data (abfd)->has_reloc_section = 1;
3495
        }
3496
#endif
3497
 
3498
      internal_f.f_nscns++;
3499
 
3500
      strncpy (section.s_name, current->name, SCNNMLEN);
3501
 
3502
#ifdef COFF_LONG_SECTION_NAMES
3503
      /* Handle long section names as in PE.  This must be compatible
3504
         with the code in coff_write_symbols and _bfd_coff_final_link.  */
3505
      {
3506
        size_t len;
3507
 
3508
        len = strlen (current->name);
3509
        if (len > SCNNMLEN)
3510
          {
3511
            memset (section.s_name, 0, SCNNMLEN);
3512
            sprintf (section.s_name, "/%lu", (unsigned long) string_size);
3513
            string_size += len + 1;
3514
            long_section_names = TRUE;
3515
          }
3516
      }
3517
#endif
3518
 
3519
#ifdef _LIB
3520
      /* Always set s_vaddr of .lib to 0.  This is right for SVR3.2
3521
         Ian Taylor <ian@cygnus.com>.  */
3522
      if (strcmp (current->name, _LIB) == 0)
3523
        section.s_vaddr = 0;
3524
      else
3525
#endif
3526
      section.s_vaddr = current->vma;
3527
      section.s_paddr = current->lma;
3528
      section.s_size =  current->size;
3529
#ifdef coff_get_section_load_page
3530
      section.s_page = coff_get_section_load_page (current);
3531
#endif
3532
 
3533
#ifdef COFF_WITH_PE
3534
      section.s_paddr = 0;
3535
#endif
3536
#ifdef COFF_IMAGE_WITH_PE
3537
      /* Reminder: s_paddr holds the virtual size of the section.  */
3538
      if (coff_section_data (abfd, current) != NULL
3539
          && pei_section_data (abfd, current) != NULL)
3540
        section.s_paddr = pei_section_data (abfd, current)->virt_size;
3541
      else
3542
        section.s_paddr = 0;
3543
#endif
3544
 
3545
      /* If this section has no size or is unloadable then the scnptr
3546
         will be 0 too.  */
3547
      if (current->size == 0
3548
          || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
3549
        section.s_scnptr = 0;
3550
      else
3551
        section.s_scnptr = current->filepos;
3552
 
3553
      section.s_relptr = current->rel_filepos;
3554
      section.s_lnnoptr = current->line_filepos;
3555
      section.s_nreloc = current->reloc_count;
3556
      section.s_nlnno = current->lineno_count;
3557
#ifndef COFF_IMAGE_WITH_PE
3558
      /* In PEI, relocs come in the .reloc section.  */
3559
      if (current->reloc_count != 0)
3560
        hasrelocs = TRUE;
3561
#endif
3562
      if (current->lineno_count != 0)
3563
        haslinno = TRUE;
3564
      if ((current->flags & SEC_DEBUGGING) != 0
3565
          && ! is_reloc_section)
3566
        hasdebug = TRUE;
3567
 
3568
#ifdef RS6000COFF_C
3569
#ifndef XCOFF64
3570
      /* Indicate the use of an XCOFF overflow section header.  */
3571
      if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3572
        {
3573
          section.s_nreloc = 0xffff;
3574
          section.s_nlnno = 0xffff;
3575
        }
3576
#endif
3577
#endif
3578
 
3579
      section.s_flags = sec_to_styp_flags (current->name, current->flags);
3580
 
3581
      if (!strcmp (current->name, _TEXT))
3582
        text_sec = current;
3583
      else if (!strcmp (current->name, _DATA))
3584
        data_sec = current;
3585
      else if (!strcmp (current->name, _BSS))
3586
        bss_sec = current;
3587
 
3588
#ifdef I960
3589
      section.s_align = (current->alignment_power
3590
                         ? 1 << current->alignment_power
3591
                         : 0);
3592
#endif
3593
#ifdef TIC80COFF
3594
      /* TI COFF puts the alignment power in bits 8-11 of the flags.  */
3595
      section.s_flags |= (current->alignment_power & 0xF) << 8;
3596
#endif
3597
#ifdef COFF_ENCODE_ALIGNMENT
3598
      COFF_ENCODE_ALIGNMENT(section, current->alignment_power);
3599
#endif
3600
 
3601
#ifdef COFF_IMAGE_WITH_PE
3602
      /* Suppress output of the sections if they are null.  ld
3603
         includes the bss and data sections even if there is no size
3604
         assigned to them.  NT loader doesn't like it if these section
3605
         headers are included if the sections themselves are not
3606
         needed.  See also coff_compute_section_file_positions.  */
3607
      if (section.s_size == 0)
3608
        internal_f.f_nscns--;
3609
      else
3610
#endif
3611
        {
3612
          SCNHDR buff;
3613
          bfd_size_type amt = bfd_coff_scnhsz (abfd);
3614
 
3615
          if (coff_swap_scnhdr_out (abfd, &section, &buff) == 0
3616
              || bfd_bwrite (& buff, amt, abfd) != amt)
3617
            return FALSE;
3618
        }
3619
 
3620
#ifdef COFF_WITH_PE
3621
      /* PE stores COMDAT section information in the symbol table.  If
3622
         this section is supposed to have some COMDAT info, track down
3623
         the symbol in the symbol table and modify it.  */
3624
      if ((current->flags & SEC_LINK_ONCE) != 0)
3625
        {
3626
          unsigned int i, count;
3627
          asymbol **psym;
3628
          coff_symbol_type *csym = NULL;
3629
          asymbol **psymsec;
3630
 
3631
          psymsec = NULL;
3632
          count = bfd_get_symcount (abfd);
3633
          for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++)
3634
            {
3635
              if ((*psym)->section != current)
3636
                continue;
3637
 
3638
              /* Remember the location of the first symbol in this
3639
                 section.  */
3640
              if (psymsec == NULL)
3641
                psymsec = psym;
3642
 
3643
              /* See if this is the section symbol.  */
3644
              if (strcmp ((*psym)->name, current->name) == 0)
3645
                {
3646
                  csym = coff_symbol_from (abfd, *psym);
3647
                  if (csym == NULL
3648
                      || csym->native == NULL
3649
                      || csym->native->u.syment.n_numaux < 1
3650
                      || csym->native->u.syment.n_sclass != C_STAT
3651
                      || csym->native->u.syment.n_type != T_NULL)
3652
                    continue;
3653
 
3654
                  /* Here *PSYM is the section symbol for CURRENT.  */
3655
 
3656
                  break;
3657
                }
3658
            }
3659
 
3660
          /* Did we find it?
3661
             Note that we might not if we're converting the file from
3662
             some other object file format.  */
3663
          if (i < count)
3664
            {
3665
              combined_entry_type *aux;
3666
 
3667
              /* We don't touch the x_checksum field.  The
3668
                 x_associated field is not currently supported.  */
3669
 
3670
              aux = csym->native + 1;
3671
              switch (current->flags & SEC_LINK_DUPLICATES)
3672
                {
3673
                case SEC_LINK_DUPLICATES_DISCARD:
3674
                  aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY;
3675
                  break;
3676
 
3677
                case SEC_LINK_DUPLICATES_ONE_ONLY:
3678
                  aux->u.auxent.x_scn.x_comdat =
3679
                    IMAGE_COMDAT_SELECT_NODUPLICATES;
3680
                  break;
3681
 
3682
                case SEC_LINK_DUPLICATES_SAME_SIZE:
3683
                  aux->u.auxent.x_scn.x_comdat =
3684
                    IMAGE_COMDAT_SELECT_SAME_SIZE;
3685
                  break;
3686
 
3687
                case SEC_LINK_DUPLICATES_SAME_CONTENTS:
3688
                  aux->u.auxent.x_scn.x_comdat =
3689
                    IMAGE_COMDAT_SELECT_EXACT_MATCH;
3690
                  break;
3691
                }
3692
 
3693
              /* The COMDAT symbol must be the first symbol from this
3694
                 section in the symbol table.  In order to make this
3695
                 work, we move the COMDAT symbol before the first
3696
                 symbol we found in the search above.  It's OK to
3697
                 rearrange the symbol table at this point, because
3698
                 coff_renumber_symbols is going to rearrange it
3699
                 further and fix up all the aux entries.  */
3700
              if (psym != psymsec)
3701
                {
3702
                  asymbol *hold;
3703
                  asymbol **pcopy;
3704
 
3705
                  hold = *psym;
3706
                  for (pcopy = psym; pcopy > psymsec; pcopy--)
3707
                    pcopy[0] = pcopy[-1];
3708
                  *psymsec = hold;
3709
                }
3710
            }
3711
        }
3712
#endif /* COFF_WITH_PE */
3713
    }
3714
 
3715
#ifdef RS6000COFF_C
3716
#ifndef XCOFF64
3717
  /* XCOFF handles overflows in the reloc and line number count fields
3718
     by creating a new section header to hold the correct values.  */
3719
  for (current = abfd->sections; current != NULL; current = current->next)
3720
    {
3721
      if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3722
        {
3723
          struct internal_scnhdr scnhdr;
3724
          SCNHDR buff;
3725
          bfd_size_type amt;
3726
 
3727
          internal_f.f_nscns++;
3728
          strncpy (&(scnhdr.s_name[0]), current->name, 8);
3729
          scnhdr.s_paddr = current->reloc_count;
3730
          scnhdr.s_vaddr = current->lineno_count;
3731
          scnhdr.s_size = 0;
3732
          scnhdr.s_scnptr = 0;
3733
          scnhdr.s_relptr = current->rel_filepos;
3734
          scnhdr.s_lnnoptr = current->line_filepos;
3735
          scnhdr.s_nreloc = current->target_index;
3736
          scnhdr.s_nlnno = current->target_index;
3737
          scnhdr.s_flags = STYP_OVRFLO;
3738
          amt = bfd_coff_scnhsz (abfd);
3739
          if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0
3740
              || bfd_bwrite (& buff, amt, abfd) != amt)
3741
            return FALSE;
3742
        }
3743
    }
3744
#endif
3745
#endif
3746
 
3747
  /* OK, now set up the filehdr...  */
3748
 
3749
  /* Don't include the internal abs section in the section count */
3750
 
3751
  /* We will NOT put a fucking timestamp in the header here. Every time you
3752
     put it back, I will come in and take it out again.  I'm sorry.  This
3753
     field does not belong here.  We fill it with a 0 so it compares the
3754
     same but is not a reasonable time. -- gnu@cygnus.com  */
3755
  internal_f.f_timdat = 0;
3756
  internal_f.f_flags = 0;
3757
 
3758
  if (abfd->flags & EXEC_P)
3759
    internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3760
  else
3761
    {
3762
      internal_f.f_opthdr = 0;
3763
#ifdef RS6000COFF_C
3764
#ifndef XCOFF64
3765
      if (xcoff_data (abfd)->full_aouthdr)
3766
        internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3767
      else
3768
        internal_f.f_opthdr = SMALL_AOUTSZ;
3769
#endif
3770
#endif
3771
    }
3772
 
3773
  if (!hasrelocs)
3774
    internal_f.f_flags |= F_RELFLG;
3775
  if (!haslinno)
3776
    internal_f.f_flags |= F_LNNO;
3777
  if (abfd->flags & EXEC_P)
3778
    internal_f.f_flags |= F_EXEC;
3779
#ifdef COFF_IMAGE_WITH_PE
3780
  if (! hasdebug)
3781
    internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED;
3782
  if (pe_data (abfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE)
3783
    internal_f.f_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
3784
#endif
3785
 
3786
#ifndef COFF_WITH_pex64
3787
#ifdef COFF_WITH_PE
3788
  internal_f.f_flags |= IMAGE_FILE_32BIT_MACHINE;
3789
#else
3790
  if (bfd_little_endian (abfd))
3791
    internal_f.f_flags |= F_AR32WR;
3792
  else
3793
    internal_f.f_flags |= F_AR32W;
3794
#endif
3795
#endif
3796
 
3797
#ifdef TI_TARGET_ID
3798
  /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3799
     but it doesn't hurt to set it internally.  */
3800
  internal_f.f_target_id = TI_TARGET_ID;
3801
#endif
3802
#ifdef TIC80_TARGET_ID
3803
  internal_f.f_target_id = TIC80_TARGET_ID;
3804
#endif
3805
 
3806
  /* FIXME, should do something about the other byte orders and
3807
     architectures.  */
3808
 
3809
#ifdef RS6000COFF_C
3810
  if ((abfd->flags & DYNAMIC) != 0)
3811
    internal_f.f_flags |= F_SHROBJ;
3812
  if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
3813
    internal_f.f_flags |= F_DYNLOAD;
3814
#endif
3815
 
3816
  memset (&internal_a, 0, sizeof internal_a);
3817
 
3818
  /* Set up architecture-dependent stuff.  */
3819
  {
3820
    unsigned int magic = 0;
3821
    unsigned short flags = 0;
3822
 
3823
    coff_set_flags (abfd, &magic, &flags);
3824
    internal_f.f_magic = magic;
3825
    internal_f.f_flags |= flags;
3826
    /* ...and the "opt"hdr...  */
3827
 
3828
#ifdef TICOFF_AOUT_MAGIC
3829
    internal_a.magic = TICOFF_AOUT_MAGIC;
3830
#define __A_MAGIC_SET__
3831
#endif
3832
#ifdef TIC80COFF
3833
    internal_a.magic = TIC80_ARCH_MAGIC;
3834
#define __A_MAGIC_SET__
3835
#endif /* TIC80 */
3836
#ifdef I860
3837
    /* FIXME: What are the a.out magic numbers for the i860?  */
3838
    internal_a.magic = 0;
3839
#define __A_MAGIC_SET__
3840
#endif /* I860 */
3841
#ifdef I960
3842
    internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
3843
#define __A_MAGIC_SET__
3844
#endif /* I960 */
3845
#if M88
3846
#define __A_MAGIC_SET__
3847
    internal_a.magic = PAGEMAGICBCS;
3848
#endif /* M88 */
3849
 
3850
#if APOLLO_M68
3851
#define __A_MAGIC_SET__
3852
    internal_a.magic = APOLLO_COFF_VERSION_NUMBER;
3853
#endif
3854
 
3855
#if defined(M68) || defined(WE32K) || defined(M68K)
3856
#define __A_MAGIC_SET__
3857
#if defined(LYNXOS)
3858
    internal_a.magic = LYNXCOFFMAGIC;
3859
#else
3860
#if defined(TARG_AUX)
3861
    internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED :
3862
                        abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED :
3863
                        PAGEMAGICEXECSWAPPED);
3864
#else
3865
#if defined (PAGEMAGICPEXECPAGED)
3866
    internal_a.magic = PAGEMAGICPEXECPAGED;
3867
#endif
3868
#endif /* TARG_AUX */
3869
#endif /* LYNXOS */
3870
#endif /* M68 || WE32K || M68K */
3871
 
3872
#if defined(ARM)
3873
#define __A_MAGIC_SET__
3874
    internal_a.magic = ZMAGIC;
3875
#endif
3876
 
3877
#if defined(PPC_PE)
3878
#define __A_MAGIC_SET__
3879
    internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
3880
#endif
3881
 
3882
#if defined MCORE_PE
3883
#define __A_MAGIC_SET__
3884
    internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
3885
#endif
3886
 
3887
#if defined(I386)
3888
#define __A_MAGIC_SET__
3889
#if defined LYNXOS
3890
    internal_a.magic = LYNXCOFFMAGIC;
3891
#elif defined AMD64
3892
    internal_a.magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC;
3893
#else
3894
    internal_a.magic = ZMAGIC;
3895
#endif
3896
#endif /* I386 */
3897
 
3898
#if defined(IA64)
3899
#define __A_MAGIC_SET__
3900
    internal_a.magic = PE32PMAGIC;
3901
#endif /* IA64 */
3902
 
3903
#if defined(SPARC)
3904
#define __A_MAGIC_SET__
3905
#if defined(LYNXOS)
3906
    internal_a.magic = LYNXCOFFMAGIC;
3907
#endif /* LYNXOS */
3908
#endif /* SPARC */
3909
 
3910
#ifdef RS6000COFF_C
3911
#define __A_MAGIC_SET__
3912
    internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC :
3913
    (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC :
3914
    RS6K_AOUTHDR_OMAGIC;
3915
#endif
3916
 
3917
#if defined(SH) && defined(COFF_WITH_PE)
3918
#define __A_MAGIC_SET__
3919
    internal_a.magic = SH_PE_MAGIC;
3920
#endif
3921
 
3922
#if defined(MIPS) && defined(COFF_WITH_PE)
3923
#define __A_MAGIC_SET__
3924
    internal_a.magic = MIPS_PE_MAGIC;
3925
#endif
3926
 
3927
#ifdef OR32
3928
#define __A_MAGIC_SET__
3929
    internal_a.magic = NMAGIC; /* Assume separate i/d.  */
3930
#endif
3931
 
3932
#ifdef MAXQ20MAGIC
3933
#define __A_MAGIC_SET__
3934
      internal_a.magic = MAXQ20MAGIC;
3935
#endif
3936
 
3937
#ifndef __A_MAGIC_SET__
3938
#include "Your aouthdr magic number is not being set!"
3939
#else
3940
#undef __A_MAGIC_SET__
3941
#endif
3942
  }
3943
 
3944
  /* FIXME: Does anybody ever set this to another value?  */
3945
  internal_a.vstamp = 0;
3946
 
3947
  /* Now should write relocs, strings, syms.  */
3948
  obj_sym_filepos (abfd) = sym_base;
3949
 
3950
  if (bfd_get_symcount (abfd) != 0)
3951
    {
3952
      int firstundef;
3953
 
3954
      if (!coff_renumber_symbols (abfd, &firstundef))
3955
        return FALSE;
3956
      coff_mangle_symbols (abfd);
3957
      if (! coff_write_symbols (abfd))
3958
        return FALSE;
3959
      if (! coff_write_linenumbers (abfd))
3960
        return FALSE;
3961
      if (! coff_write_relocs (abfd, firstundef))
3962
        return FALSE;
3963
    }
3964
#ifdef COFF_LONG_SECTION_NAMES
3965
  else if (long_section_names && ! obj_coff_strings_written (abfd))
3966
    {
3967
      /* If we have long section names we have to write out the string
3968
         table even if there are no symbols.  */
3969
      if (! coff_write_symbols (abfd))
3970
        return FALSE;
3971
    }
3972
#endif
3973
#ifdef COFF_IMAGE_WITH_PE
3974
#ifdef PPC_PE
3975
  else if ((abfd->flags & EXEC_P) != 0)
3976
    {
3977
      bfd_byte b;
3978
 
3979
      /* PowerPC PE appears to require that all executable files be
3980
         rounded up to the page size.  */
3981
      b = 0;
3982
      if (bfd_seek (abfd,
3983
                    (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1,
3984
                    SEEK_SET) != 0
3985
          || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
3986
        return FALSE;
3987
    }
3988
#endif
3989
#endif
3990
 
3991
  /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
3992
     backend linker, and obj_raw_syment_count is not valid until after
3993
     coff_write_symbols is called.  */
3994
  if (obj_raw_syment_count (abfd) != 0)
3995
    {
3996
      internal_f.f_symptr = sym_base;
3997
#ifdef RS6000COFF_C
3998
      /* AIX appears to require that F_RELFLG not be set if there are
3999
         local symbols but no relocations.  */
4000
      internal_f.f_flags &=~ F_RELFLG;
4001
#endif
4002
    }
4003
  else
4004
    {
4005
      if (long_section_names)
4006
        internal_f.f_symptr = sym_base;
4007
      else
4008
        internal_f.f_symptr = 0;
4009
      internal_f.f_flags |= F_LSYMS;
4010
    }
4011
 
4012
  if (text_sec)
4013
    {
4014
      internal_a.tsize = text_sec->size;
4015
      internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
4016
    }
4017
  if (data_sec)
4018
    {
4019
      internal_a.dsize = data_sec->size;
4020
      internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
4021
    }
4022
  if (bss_sec)
4023
    {
4024
      internal_a.bsize = bss_sec->size;
4025
      if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
4026
        internal_a.data_start = bss_sec->vma;
4027
    }
4028
 
4029
  internal_a.entry = bfd_get_start_address (abfd);
4030
  internal_f.f_nsyms = obj_raw_syment_count (abfd);
4031
 
4032
#ifdef RS6000COFF_C
4033
  if (xcoff_data (abfd)->full_aouthdr)
4034
    {
4035
      bfd_vma toc;
4036
      asection *loader_sec;
4037
 
4038
      internal_a.vstamp = 1;
4039
 
4040
      internal_a.o_snentry = xcoff_data (abfd)->snentry;
4041
      if (internal_a.o_snentry == 0)
4042
        internal_a.entry = (bfd_vma) -1;
4043
 
4044
      if (text_sec != NULL)
4045
        {
4046
          internal_a.o_sntext = text_sec->target_index;
4047
          internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
4048
        }
4049
      else
4050
        {
4051
          internal_a.o_sntext = 0;
4052
          internal_a.o_algntext = 0;
4053
        }
4054
      if (data_sec != NULL)
4055
        {
4056
          internal_a.o_sndata = data_sec->target_index;
4057
          internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
4058
        }
4059
      else
4060
        {
4061
          internal_a.o_sndata = 0;
4062
          internal_a.o_algndata = 0;
4063
        }
4064
      loader_sec = bfd_get_section_by_name (abfd, ".loader");
4065
      if (loader_sec != NULL)
4066
        internal_a.o_snloader = loader_sec->target_index;
4067
      else
4068
        internal_a.o_snloader = 0;
4069
      if (bss_sec != NULL)
4070
        internal_a.o_snbss = bss_sec->target_index;
4071
      else
4072
        internal_a.o_snbss = 0;
4073
 
4074
      toc = xcoff_data (abfd)->toc;
4075
      internal_a.o_toc = toc;
4076
      internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
4077
 
4078
      internal_a.o_modtype = xcoff_data (abfd)->modtype;
4079
      if (xcoff_data (abfd)->cputype != -1)
4080
        internal_a.o_cputype = xcoff_data (abfd)->cputype;
4081
      else
4082
        {
4083
          switch (bfd_get_arch (abfd))
4084
            {
4085
            case bfd_arch_rs6000:
4086
              internal_a.o_cputype = 4;
4087
              break;
4088
            case bfd_arch_powerpc:
4089
              if (bfd_get_mach (abfd) == bfd_mach_ppc)
4090
                internal_a.o_cputype = 3;
4091
              else
4092
                internal_a.o_cputype = 1;
4093
              break;
4094
            default:
4095
              abort ();
4096
            }
4097
        }
4098
      internal_a.o_maxstack = xcoff_data (abfd)->maxstack;
4099
      internal_a.o_maxdata = xcoff_data (abfd)->maxdata;
4100
    }
4101
#endif
4102
 
4103
  /* Now write them.  */
4104
  if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
4105
    return FALSE;
4106
 
4107
  {
4108
    char * buff;
4109
    bfd_size_type amount = bfd_coff_filhsz (abfd);
4110
 
4111
    buff = bfd_malloc (amount);
4112
    if (buff == NULL)
4113
      return FALSE;
4114
 
4115
    bfd_coff_swap_filehdr_out (abfd, & internal_f, buff);
4116
    amount = bfd_bwrite (buff, amount, abfd);
4117
 
4118
    free (buff);
4119
 
4120
    if (amount != bfd_coff_filhsz (abfd))
4121
      return FALSE;
4122
  }
4123
 
4124
  if (abfd->flags & EXEC_P)
4125
    {
4126
      /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4127
         include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)).  */
4128
      char * buff;
4129
      bfd_size_type amount = bfd_coff_aoutsz (abfd);
4130
 
4131
      buff = bfd_malloc (amount);
4132
      if (buff == NULL)
4133
        return FALSE;
4134
 
4135
      coff_swap_aouthdr_out (abfd, & internal_a, buff);
4136
      amount = bfd_bwrite (buff, amount, abfd);
4137
 
4138
      free (buff);
4139
 
4140
      if (amount != bfd_coff_aoutsz (abfd))
4141
        return FALSE;
4142
 
4143
#ifdef COFF_IMAGE_WITH_PE
4144
      if (! coff_apply_checksum (abfd))
4145
        return FALSE;
4146
#endif
4147
    }
4148
#ifdef RS6000COFF_C
4149
  else
4150
    {
4151
      AOUTHDR buff;
4152
      size_t size;
4153
 
4154
      /* XCOFF seems to always write at least a small a.out header.  */
4155
      coff_swap_aouthdr_out (abfd, & internal_a, & buff);
4156
      if (xcoff_data (abfd)->full_aouthdr)
4157
        size = bfd_coff_aoutsz (abfd);
4158
      else
4159
        size = SMALL_AOUTSZ;
4160
      if (bfd_bwrite (& buff, (bfd_size_type) size, abfd) != size)
4161
        return FALSE;
4162
    }
4163
#endif
4164
 
4165
  return TRUE;
4166
}
4167
 
4168
static bfd_boolean
4169
coff_set_section_contents (bfd * abfd,
4170
                           sec_ptr section,
4171
                           const void * location,
4172
                           file_ptr offset,
4173
                           bfd_size_type count)
4174
{
4175
  if (! abfd->output_has_begun) /* Set by bfd.c handler.  */
4176
    {
4177
      if (! coff_compute_section_file_positions (abfd))
4178
        return FALSE;
4179
    }
4180
 
4181
#if defined(_LIB) && !defined(TARG_AUX)
4182
   /* The physical address field of a .lib section is used to hold the
4183
      number of shared libraries in the section.  This code counts the
4184
      number of sections being written, and increments the lma field
4185
      with the number.
4186
 
4187
      I have found no documentation on the contents of this section.
4188
      Experimentation indicates that the section contains zero or more
4189
      records, each of which has the following structure:
4190
 
4191
      - a (four byte) word holding the length of this record, in words,
4192
      - a word that always seems to be set to "2",
4193
      - the path to a shared library, null-terminated and then padded
4194
        to a whole word boundary.
4195
 
4196
      bfd_assert calls have been added to alert if an attempt is made
4197
      to write a section which doesn't follow these assumptions.  The
4198
      code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4199
      <robertl@arnet.com> (Thanks!).
4200
 
4201
      Gvran Uddeborg <gvran@uddeborg.pp.se>.  */
4202
    if (strcmp (section->name, _LIB) == 0)
4203
      {
4204
        bfd_byte *rec, *recend;
4205
 
4206
        rec = (bfd_byte *) location;
4207
        recend = rec + count;
4208
        while (rec < recend)
4209
          {
4210
            ++section->lma;
4211
            rec += bfd_get_32 (abfd, rec) * 4;
4212
          }
4213
 
4214
        BFD_ASSERT (rec == recend);
4215
      }
4216
#endif
4217
 
4218
  /* Don't write out bss sections - one way to do this is to
4219
       see if the filepos has not been set.  */
4220
  if (section->filepos == 0)
4221
    return TRUE;
4222
 
4223
  if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
4224
    return FALSE;
4225
 
4226
  if (count == 0)
4227
    return TRUE;
4228
 
4229
  return bfd_bwrite (location, count, abfd) == count;
4230
}
4231
 
4232
static void *
4233
buy_and_read (bfd *abfd, file_ptr where, bfd_size_type size)
4234
{
4235
  void * area = bfd_alloc (abfd, size);
4236
 
4237
  if (!area)
4238
    return (NULL);
4239
  if (bfd_seek (abfd, where, SEEK_SET) != 0
4240
      || bfd_bread (area, size, abfd) != size)
4241
    return (NULL);
4242
  return (area);
4243
}
4244
 
4245
/*
4246
SUBSUBSECTION
4247
        Reading linenumbers
4248
 
4249
        Creating the linenumber table is done by reading in the entire
4250
        coff linenumber table, and creating another table for internal use.
4251
 
4252
        A coff linenumber table is structured so that each function
4253
        is marked as having a line number of 0. Each line within the
4254
        function is an offset from the first line in the function. The
4255
        base of the line number information for the table is stored in
4256
        the symbol associated with the function.
4257
 
4258
        Note: The PE format uses line number 0 for a flag indicating a
4259
        new source file.
4260
 
4261
        The information is copied from the external to the internal
4262
        table, and each symbol which marks a function is marked by
4263
        pointing its...
4264
 
4265
        How does this work ?
4266
*/
4267
 
4268
static int
4269
coff_sort_func_alent (const void * arg1, const void * arg2)
4270
{
4271
  const alent *al1 = *(const alent **) arg1;
4272
  const alent *al2 = *(const alent **) arg2;
4273
  const coff_symbol_type *s1 = (const coff_symbol_type *) (al1->u.sym);
4274
  const coff_symbol_type *s2 = (const coff_symbol_type *) (al2->u.sym);
4275
 
4276
  if (s1->symbol.value < s2->symbol.value)
4277
    return -1;
4278
  else if (s1->symbol.value > s2->symbol.value)
4279
    return 1;
4280
 
4281
  return 0;
4282
}
4283
 
4284
static bfd_boolean
4285
coff_slurp_line_table (bfd *abfd, asection *asect)
4286
{
4287
  LINENO *native_lineno;
4288
  alent *lineno_cache;
4289
  bfd_size_type amt;
4290
  unsigned int counter;
4291
  alent *cache_ptr;
4292
  bfd_vma prev_offset = 0;
4293
  int ordered = 1;
4294
  unsigned int nbr_func;
4295
  LINENO *src;
4296
 
4297
  BFD_ASSERT (asect->lineno == NULL);
4298
 
4299
  amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4300
  lineno_cache = bfd_alloc (abfd, amt);
4301
  if (lineno_cache == NULL)
4302
    return FALSE;
4303
 
4304
  amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count;
4305
  native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt);
4306
  if (native_lineno == NULL)
4307
    {
4308
      (*_bfd_error_handler)
4309
        (_("%B: warning: line number table read failed"), abfd);
4310
      bfd_release (abfd, lineno_cache);
4311
      return FALSE;
4312
    }
4313
 
4314
  cache_ptr = lineno_cache;
4315
  asect->lineno = lineno_cache;
4316
  src = native_lineno;
4317
  nbr_func = 0;
4318
 
4319
  for (counter = 0; counter < asect->lineno_count; counter++)
4320
    {
4321
      struct internal_lineno dst;
4322
 
4323
      bfd_coff_swap_lineno_in (abfd, src, &dst);
4324
      cache_ptr->line_number = dst.l_lnno;
4325
 
4326
      if (cache_ptr->line_number == 0)
4327
        {
4328
          bfd_boolean warned;
4329
          bfd_signed_vma symndx;
4330
          coff_symbol_type *sym;
4331
 
4332
          nbr_func++;
4333
          warned = FALSE;
4334
          symndx = dst.l_addr.l_symndx;
4335
          if (symndx < 0
4336
              || (bfd_vma) symndx >= obj_raw_syment_count (abfd))
4337
            {
4338
              (*_bfd_error_handler)
4339
                (_("%B: warning: illegal symbol index %ld in line numbers"),
4340
                 abfd, dst.l_addr.l_symndx);
4341
              symndx = 0;
4342
              warned = TRUE;
4343
            }
4344
 
4345
          /* FIXME: We should not be casting between ints and
4346
             pointers like this.  */
4347
          sym = ((coff_symbol_type *)
4348
                 ((symndx + obj_raw_syments (abfd))
4349
                  ->u.syment._n._n_n._n_zeroes));
4350
          cache_ptr->u.sym = (asymbol *) sym;
4351
          if (sym->lineno != NULL && ! warned)
4352
            (*_bfd_error_handler)
4353
              (_("%B: warning: duplicate line number information for `%s'"),
4354
               abfd, bfd_asymbol_name (&sym->symbol));
4355
 
4356
          sym->lineno = cache_ptr;
4357
          if (sym->symbol.value < prev_offset)
4358
            ordered = 0;
4359
          prev_offset = sym->symbol.value;
4360
        }
4361
      else
4362
        cache_ptr->u.offset = dst.l_addr.l_paddr
4363
          - bfd_section_vma (abfd, asect);
4364
 
4365
      cache_ptr++;
4366
      src++;
4367
    }
4368
  cache_ptr->line_number = 0;
4369
  bfd_release (abfd, native_lineno);
4370
 
4371
  /* On some systems (eg AIX5.3) the lineno table may not be sorted.  */
4372
  if (!ordered)
4373
    {
4374
      /* Sort the table.  */
4375
      alent **func_table;
4376
      alent *n_lineno_cache;
4377
 
4378
      /* Create a table of functions.  */
4379
      func_table = bfd_alloc (abfd, nbr_func * sizeof (alent *));
4380
      if (func_table != NULL)
4381
        {
4382
          alent **p = func_table;
4383
          unsigned int i;
4384
 
4385
          for (i = 0; i < counter; i++)
4386
            if (lineno_cache[i].line_number == 0)
4387
              *p++ = &lineno_cache[i];
4388
 
4389
          /* Sort by functions.  */
4390
          qsort (func_table, nbr_func, sizeof (alent *), coff_sort_func_alent);
4391
 
4392
          /* Create the new sorted table.  */
4393
          amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4394
          n_lineno_cache = bfd_alloc (abfd, amt);
4395
          if (n_lineno_cache != NULL)
4396
            {
4397
              alent *n_cache_ptr = n_lineno_cache;
4398
 
4399
              for (i = 0; i < nbr_func; i++)
4400
                {
4401
                  coff_symbol_type *sym;
4402
                  alent *old_ptr = func_table[i];
4403
 
4404
                  /* Copy the function entry and update it.  */
4405
                  *n_cache_ptr = *old_ptr;
4406
                  sym = (coff_symbol_type *)n_cache_ptr->u.sym;
4407
                  sym->lineno = n_cache_ptr;
4408
                  n_cache_ptr++;
4409
                  old_ptr++;
4410
 
4411
                  /* Copy the line number entries.  */
4412
                  while (old_ptr->line_number != 0)
4413
                    *n_cache_ptr++ = *old_ptr++;
4414
                }
4415
              n_cache_ptr->line_number = 0;
4416
              memcpy (lineno_cache, n_lineno_cache, amt);
4417
            }
4418
          bfd_release (abfd, func_table);
4419
        }
4420
    }
4421
 
4422
  return TRUE;
4423
}
4424
 
4425
/* Slurp in the symbol table, converting it to generic form.  Note
4426
   that if coff_relocate_section is defined, the linker will read
4427
   symbols via coff_link_add_symbols, rather than via this routine.  */
4428
 
4429
static bfd_boolean
4430
coff_slurp_symbol_table (bfd * abfd)
4431
{
4432
  combined_entry_type *native_symbols;
4433
  coff_symbol_type *cached_area;
4434
  unsigned int *table_ptr;
4435
  bfd_size_type amt;
4436
  unsigned int number_of_symbols = 0;
4437
 
4438
  if (obj_symbols (abfd))
4439
    return TRUE;
4440
 
4441
  /* Read in the symbol table.  */
4442
  if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL)
4443
    return FALSE;
4444
 
4445
  /* Allocate enough room for all the symbols in cached form.  */
4446
  amt = obj_raw_syment_count (abfd);
4447
  amt *= sizeof (coff_symbol_type);
4448
  cached_area = bfd_alloc (abfd, amt);
4449
  if (cached_area == NULL)
4450
    return FALSE;
4451
 
4452
  amt = obj_raw_syment_count (abfd);
4453
  amt *= sizeof (unsigned int);
4454
  table_ptr = bfd_alloc (abfd, amt);
4455
 
4456
  if (table_ptr == NULL)
4457
    return FALSE;
4458
  else
4459
    {
4460
      coff_symbol_type *dst = cached_area;
4461
      unsigned int last_native_index = obj_raw_syment_count (abfd);
4462
      unsigned int this_index = 0;
4463
 
4464
      while (this_index < last_native_index)
4465
        {
4466
          combined_entry_type *src = native_symbols + this_index;
4467
          table_ptr[this_index] = number_of_symbols;
4468
          dst->symbol.the_bfd = abfd;
4469
 
4470
          dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset);
4471
          /* We use the native name field to point to the cached field.  */
4472
          src->u.syment._n._n_n._n_zeroes = (bfd_hostptr_t) dst;
4473
          dst->symbol.section = coff_section_from_bfd_index (abfd,
4474
                                                     src->u.syment.n_scnum);
4475
          dst->symbol.flags = 0;
4476
          dst->done_lineno = FALSE;
4477
 
4478
          switch (src->u.syment.n_sclass)
4479
            {
4480
#ifdef I960
4481
            case C_LEAFEXT:
4482
              /* Fall through to next case.  */
4483
#endif
4484
 
4485
            case C_EXT:
4486
            case C_WEAKEXT:
4487
#if defined ARM
4488
            case C_THUMBEXT:
4489
            case C_THUMBEXTFUNC:
4490
#endif
4491
#ifdef RS6000COFF_C
4492
            case C_HIDEXT:
4493
#endif
4494
#ifdef C_SYSTEM
4495
            case C_SYSTEM:      /* System Wide variable.  */
4496
#endif
4497
#ifdef COFF_WITH_PE
4498
            /* In PE, 0x68 (104) denotes a section symbol.  */
4499
            case C_SECTION:
4500
            /* In PE, 0x69 (105) denotes a weak external symbol.  */
4501
            case C_NT_WEAK:
4502
#endif
4503
              switch (coff_classify_symbol (abfd, &src->u.syment))
4504
                {
4505
                case COFF_SYMBOL_GLOBAL:
4506
                  dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
4507
#if defined COFF_WITH_PE
4508
                  /* PE sets the symbol to a value relative to the
4509
                     start of the section.  */
4510
                  dst->symbol.value = src->u.syment.n_value;
4511
#else
4512
                  dst->symbol.value = (src->u.syment.n_value
4513
                                       - dst->symbol.section->vma);
4514
#endif
4515
                  if (ISFCN ((src->u.syment.n_type)))
4516
                    /* A function ext does not go at the end of a
4517
                       file.  */
4518
                    dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4519
                  break;
4520
 
4521
                case COFF_SYMBOL_COMMON:
4522
                  dst->symbol.section = bfd_com_section_ptr;
4523
                  dst->symbol.value = src->u.syment.n_value;
4524
                  break;
4525
 
4526
                case COFF_SYMBOL_UNDEFINED:
4527
                  dst->symbol.section = bfd_und_section_ptr;
4528
                  dst->symbol.value = 0;
4529
                  break;
4530
 
4531
                case COFF_SYMBOL_PE_SECTION:
4532
                  dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM;
4533
                  dst->symbol.value = 0;
4534
                  break;
4535
 
4536
                case COFF_SYMBOL_LOCAL:
4537
                  dst->symbol.flags = BSF_LOCAL;
4538
#if defined COFF_WITH_PE
4539
                  /* PE sets the symbol to a value relative to the
4540
                     start of the section.  */
4541
                  dst->symbol.value = src->u.syment.n_value;
4542
#else
4543
                  dst->symbol.value = (src->u.syment.n_value
4544
                                       - dst->symbol.section->vma);
4545
#endif
4546
                  if (ISFCN ((src->u.syment.n_type)))
4547
                    dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4548
                  break;
4549
                }
4550
 
4551
#ifdef RS6000COFF_C
4552
              /* A symbol with a csect entry should not go at the end.  */
4553
              if (src->u.syment.n_numaux > 0)
4554
                dst->symbol.flags |= BSF_NOT_AT_END;
4555
#endif
4556
 
4557
#ifdef COFF_WITH_PE
4558
              if (src->u.syment.n_sclass == C_NT_WEAK)
4559
                dst->symbol.flags |= BSF_WEAK;
4560
 
4561
              if (src->u.syment.n_sclass == C_SECTION
4562
                  && src->u.syment.n_scnum > 0)
4563
                dst->symbol.flags = BSF_LOCAL;
4564
#endif
4565
              if (src->u.syment.n_sclass == C_WEAKEXT)
4566
                dst->symbol.flags |= BSF_WEAK;
4567
 
4568
              break;
4569
 
4570
            case C_STAT:         /* Static.  */
4571
#ifdef I960
4572
            case C_LEAFSTAT:     /* Static leaf procedure.  */
4573
#endif
4574
#if defined ARM
4575
            case C_THUMBSTAT:    /* Thumb static.  */
4576
            case C_THUMBLABEL:   /* Thumb label.  */
4577
            case C_THUMBSTATFUNC:/* Thumb static function.  */
4578
#endif
4579
            case C_LABEL:        /* Label.  */
4580
              if (src->u.syment.n_scnum == N_DEBUG)
4581
                dst->symbol.flags = BSF_DEBUGGING;
4582
              else
4583
                dst->symbol.flags = BSF_LOCAL;
4584
 
4585
              /* Base the value as an index from the base of the
4586
                 section, if there is one.  */
4587
              if (dst->symbol.section)
4588
                {
4589
#if defined COFF_WITH_PE
4590
                  /* PE sets the symbol to a value relative to the
4591
                     start of the section.  */
4592
                  dst->symbol.value = src->u.syment.n_value;
4593
#else
4594
                  dst->symbol.value = (src->u.syment.n_value
4595
                                       - dst->symbol.section->vma);
4596
#endif
4597
                }
4598
              else
4599
                dst->symbol.value = src->u.syment.n_value;
4600
              break;
4601
 
4602
            case C_MOS:         /* Member of structure.  */
4603
            case C_EOS:         /* End of structure.  */
4604
            case C_REGPARM:     /* Register parameter.  */
4605
            case C_REG:         /* register variable.  */
4606
              /* C_AUTOARG conflicts with TI COFF C_UEXT.  */
4607
#if !defined (TIC80COFF) && !defined (TICOFF)
4608
#ifdef C_AUTOARG
4609
            case C_AUTOARG:     /* 960-specific storage class.  */
4610
#endif
4611
#endif
4612
            case C_TPDEF:       /* Type definition.  */
4613
            case C_ARG:
4614
            case C_AUTO:        /* Automatic variable.  */
4615
            case C_FIELD:       /* Bit field.  */
4616
            case C_ENTAG:       /* Enumeration tag.  */
4617
            case C_MOE:         /* Member of enumeration.  */
4618
            case C_MOU:         /* Member of union.  */
4619
            case C_UNTAG:       /* Union tag.  */
4620
              dst->symbol.flags = BSF_DEBUGGING;
4621
              dst->symbol.value = (src->u.syment.n_value);
4622
              break;
4623
 
4624
            case C_FILE:        /* File name.  */
4625
            case C_STRTAG:      /* Structure tag.  */
4626
#ifdef RS6000COFF_C
4627
            case C_GSYM:
4628
            case C_LSYM:
4629
            case C_PSYM:
4630
            case C_RSYM:
4631
            case C_RPSYM:
4632
            case C_STSYM:
4633
            case C_TCSYM:
4634
            case C_BCOMM:
4635
            case C_ECOML:
4636
            case C_ECOMM:
4637
            case C_DECL:
4638
            case C_ENTRY:
4639
            case C_FUN:
4640
            case C_ESTAT:
4641
#endif
4642
              dst->symbol.flags = BSF_DEBUGGING;
4643
              dst->symbol.value = (src->u.syment.n_value);
4644
              break;
4645
 
4646
#ifdef RS6000COFF_C
4647
            case C_BINCL:       /* Beginning of include file.  */
4648
            case C_EINCL:       /* Ending of include file.  */
4649
              /* The value is actually a pointer into the line numbers
4650
                 of the file.  We locate the line number entry, and
4651
                 set the section to the section which contains it, and
4652
                 the value to the index in that section.  */
4653
              {
4654
                asection *sec;
4655
 
4656
                dst->symbol.flags = BSF_DEBUGGING;
4657
                for (sec = abfd->sections; sec != NULL; sec = sec->next)
4658
                  if (sec->line_filepos <= (file_ptr) src->u.syment.n_value
4659
                      && ((file_ptr) (sec->line_filepos
4660
                                      + sec->lineno_count * bfd_coff_linesz (abfd))
4661
                          > (file_ptr) src->u.syment.n_value))
4662
                    break;
4663
                if (sec == NULL)
4664
                  dst->symbol.value = 0;
4665
                else
4666
                  {
4667
                    dst->symbol.section = sec;
4668
                    dst->symbol.value = ((src->u.syment.n_value
4669
                                          - sec->line_filepos)
4670
                                         / bfd_coff_linesz (abfd));
4671
                    src->fix_line = 1;
4672
                  }
4673
              }
4674
              break;
4675
 
4676
            case C_BSTAT:
4677
              dst->symbol.flags = BSF_DEBUGGING;
4678
 
4679
              /* The value is actually a symbol index.  Save a pointer
4680
                 to the symbol instead of the index.  FIXME: This
4681
                 should use a union.  */
4682
              src->u.syment.n_value =
4683
                (long) (native_symbols + src->u.syment.n_value);
4684
              dst->symbol.value = src->u.syment.n_value;
4685
              src->fix_value = 1;
4686
              break;
4687
#endif
4688
 
4689
            case C_BLOCK:       /* ".bb" or ".eb".  */
4690
            case C_FCN:         /* ".bf" or ".ef" (or PE ".lf").  */
4691
            case C_EFCN:        /* Physical end of function.  */
4692
#if defined COFF_WITH_PE
4693
              /* PE sets the symbol to a value relative to the start
4694
                 of the section.  */
4695
              dst->symbol.value = src->u.syment.n_value;
4696
              if (strcmp (dst->symbol.name, ".bf") != 0)
4697
                {
4698
                  /* PE uses funny values for .ef and .lf; don't
4699
                     relocate them.  */
4700
                  dst->symbol.flags = BSF_DEBUGGING;
4701
                }
4702
              else
4703
                dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC;
4704
#else
4705
              /* Base the value as an index from the base of the
4706
                 section.  */
4707
              dst->symbol.flags = BSF_LOCAL;
4708
              dst->symbol.value = (src->u.syment.n_value
4709
                                   - dst->symbol.section->vma);
4710
#endif
4711
              break;
4712
 
4713
            case C_STATLAB:     /* Static load time label.  */
4714
              dst->symbol.value = src->u.syment.n_value;
4715
              dst->symbol.flags = BSF_GLOBAL;
4716
              break;
4717
 
4718
            case C_NULL:
4719
              /* PE DLLs sometimes have zeroed out symbols for some
4720
                 reason.  Just ignore them without a warning.  */
4721
              if (src->u.syment.n_type == 0
4722
                  && src->u.syment.n_value == 0
4723
                  && src->u.syment.n_scnum == 0)
4724
                break;
4725
              /* Fall through.  */
4726
            case C_EXTDEF:      /* External definition.  */
4727
            case C_ULABEL:      /* Undefined label.  */
4728
            case C_USTATIC:     /* Undefined static.  */
4729
#ifndef COFF_WITH_PE
4730
            /* C_LINE in regular coff is 0x68.  NT has taken over this storage
4731
               class to represent a section symbol.  */
4732
            case C_LINE:        /* line # reformatted as symbol table entry.  */
4733
              /* NT uses 0x67 for a weak symbol, not C_ALIAS.  */
4734
            case C_ALIAS:       /* Duplicate tag.  */
4735
#endif
4736
              /* New storage classes for TI COFF.  */
4737
#if defined(TIC80COFF) || defined(TICOFF)
4738
            case C_UEXT:        /* Tentative external definition.  */
4739
#endif
4740
            case C_EXTLAB:      /* External load time label.  */
4741
            case C_HIDDEN:      /* Ext symbol in dmert public lib.  */
4742
            default:
4743
              (*_bfd_error_handler)
4744
                (_("%B: Unrecognized storage class %d for %s symbol `%s'"),
4745
                 abfd, src->u.syment.n_sclass,
4746
                 dst->symbol.section->name, dst->symbol.name);
4747
              dst->symbol.flags = BSF_DEBUGGING;
4748
              dst->symbol.value = (src->u.syment.n_value);
4749
              break;
4750
            }
4751
 
4752
          dst->native = src;
4753
 
4754
          dst->symbol.udata.i = 0;
4755
          dst->lineno = NULL;
4756
          this_index += (src->u.syment.n_numaux) + 1;
4757
          dst++;
4758
          number_of_symbols++;
4759
        }
4760
    }
4761
 
4762
  obj_symbols (abfd) = cached_area;
4763
  obj_raw_syments (abfd) = native_symbols;
4764
 
4765
  bfd_get_symcount (abfd) = number_of_symbols;
4766
  obj_convert (abfd) = table_ptr;
4767
  /* Slurp the line tables for each section too.  */
4768
  {
4769
    asection *p;
4770
 
4771
    p = abfd->sections;
4772
    while (p)
4773
      {
4774
        coff_slurp_line_table (abfd, p);
4775
        p = p->next;
4776
      }
4777
  }
4778
 
4779
  return TRUE;
4780
}
4781
 
4782
/* Classify a COFF symbol.  A couple of targets have globally visible
4783
   symbols which are not class C_EXT, and this handles those.  It also
4784
   recognizes some special PE cases.  */
4785
 
4786
static enum coff_symbol_classification
4787
coff_classify_symbol (bfd *abfd,
4788
                      struct internal_syment *syment)
4789
{
4790
  /* FIXME: This partially duplicates the switch in
4791
     coff_slurp_symbol_table.  */
4792
  switch (syment->n_sclass)
4793
    {
4794
    case C_EXT:
4795
    case C_WEAKEXT:
4796
#ifdef I960
4797
    case C_LEAFEXT:
4798
#endif
4799
#ifdef ARM
4800
    case C_THUMBEXT:
4801
    case C_THUMBEXTFUNC:
4802
#endif
4803
#ifdef C_SYSTEM
4804
    case C_SYSTEM:
4805
#endif
4806
#ifdef COFF_WITH_PE
4807
    case C_NT_WEAK:
4808
#endif
4809
      if (syment->n_scnum == 0)
4810
        {
4811
          if (syment->n_value == 0)
4812
            return COFF_SYMBOL_UNDEFINED;
4813
          else
4814
            return COFF_SYMBOL_COMMON;
4815
        }
4816
      return COFF_SYMBOL_GLOBAL;
4817
 
4818
    default:
4819
      break;
4820
    }
4821
 
4822
#ifdef COFF_WITH_PE
4823
  if (syment->n_sclass == C_STAT)
4824
    {
4825
      if (syment->n_scnum == 0)
4826
        /* The Microsoft compiler sometimes generates these if a
4827
           small static function is inlined every time it is used.
4828
           The function is discarded, but the symbol table entry
4829
           remains.  */
4830
        return COFF_SYMBOL_LOCAL;
4831
 
4832
#ifdef STRICT_PE_FORMAT
4833
      /* This is correct for Microsoft generated objects, but it
4834
         breaks gas generated objects.  */
4835
      if (syment->n_value == 0)
4836
        {
4837
          asection *sec;
4838
          char buf[SYMNMLEN + 1];
4839
 
4840
          sec = coff_section_from_bfd_index (abfd, syment->n_scnum);
4841
          if (sec != NULL
4842
              && (strcmp (bfd_get_section_name (abfd, sec),
4843
                          _bfd_coff_internal_syment_name (abfd, syment, buf))
4844
                  == 0))
4845
            return COFF_SYMBOL_PE_SECTION;
4846
        }
4847
#endif
4848
 
4849
      return COFF_SYMBOL_LOCAL;
4850
    }
4851
 
4852
  if (syment->n_sclass == C_SECTION)
4853
    {
4854
      /* In some cases in a DLL generated by the Microsoft linker, the
4855
         n_value field will contain garbage.  FIXME: This should
4856
         probably be handled by the swapping function instead.  */
4857
      syment->n_value = 0;
4858
      if (syment->n_scnum == 0)
4859
        return COFF_SYMBOL_UNDEFINED;
4860
      return COFF_SYMBOL_PE_SECTION;
4861
    }
4862
#endif /* COFF_WITH_PE */
4863
 
4864
  /* If it is not a global symbol, we presume it is a local symbol.  */
4865
  if (syment->n_scnum == 0)
4866
    {
4867
      char buf[SYMNMLEN + 1];
4868
 
4869
      (*_bfd_error_handler)
4870
        (_("warning: %B: local symbol `%s' has no section"),
4871
         abfd, _bfd_coff_internal_syment_name (abfd, syment, buf));
4872
    }
4873
 
4874
  return COFF_SYMBOL_LOCAL;
4875
}
4876
 
4877
/*
4878
SUBSUBSECTION
4879
        Reading relocations
4880
 
4881
        Coff relocations are easily transformed into the internal BFD form
4882
        (@code{arelent}).
4883
 
4884
        Reading a coff relocation table is done in the following stages:
4885
 
4886
        o Read the entire coff relocation table into memory.
4887
 
4888
        o Process each relocation in turn; first swap it from the
4889
        external to the internal form.
4890
 
4891
        o Turn the symbol referenced in the relocation's symbol index
4892
        into a pointer into the canonical symbol table.
4893
        This table is the same as the one returned by a call to
4894
        @code{bfd_canonicalize_symtab}. The back end will call that
4895
        routine and save the result if a canonicalization hasn't been done.
4896
 
4897
        o The reloc index is turned into a pointer to a howto
4898
        structure, in a back end specific way. For instance, the 386
4899
        and 960 use the @code{r_type} to directly produce an index
4900
        into a howto table vector; the 88k subtracts a number from the
4901
        @code{r_type} field and creates an addend field.
4902
*/
4903
 
4904
#ifndef CALC_ADDEND
4905
#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr)                \
4906
  {                                                             \
4907
    coff_symbol_type *coffsym = NULL;                           \
4908
                                                                \
4909
    if (ptr && bfd_asymbol_bfd (ptr) != abfd)                   \
4910
      coffsym = (obj_symbols (abfd)                             \
4911
                 + (cache_ptr->sym_ptr_ptr - symbols));         \
4912
    else if (ptr)                                               \
4913
      coffsym = coff_symbol_from (abfd, ptr);                   \
4914
    if (coffsym != NULL                                         \
4915
        && coffsym->native->u.syment.n_scnum == 0)               \
4916
      cache_ptr->addend = 0;                                     \
4917
    else if (ptr && bfd_asymbol_bfd (ptr) == abfd               \
4918
             && ptr->section != NULL)                           \
4919
      cache_ptr->addend = - (ptr->section->vma + ptr->value);   \
4920
    else                                                        \
4921
      cache_ptr->addend = 0;                                     \
4922
  }
4923
#endif
4924
 
4925
static bfd_boolean
4926
coff_slurp_reloc_table (bfd * abfd, sec_ptr asect, asymbol ** symbols)
4927
{
4928
  RELOC *native_relocs;
4929
  arelent *reloc_cache;
4930
  arelent *cache_ptr;
4931
  unsigned int idx;
4932
  bfd_size_type amt;
4933
 
4934
  if (asect->relocation)
4935
    return TRUE;
4936
  if (asect->reloc_count == 0)
4937
    return TRUE;
4938
  if (asect->flags & SEC_CONSTRUCTOR)
4939
    return TRUE;
4940
  if (!coff_slurp_symbol_table (abfd))
4941
    return FALSE;
4942
 
4943
  amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count;
4944
  native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt);
4945
  amt = (bfd_size_type) asect->reloc_count * sizeof (arelent);
4946
  reloc_cache = bfd_alloc (abfd, amt);
4947
 
4948
  if (reloc_cache == NULL || native_relocs == NULL)
4949
    return FALSE;
4950
 
4951
  for (idx = 0; idx < asect->reloc_count; idx++)
4952
    {
4953
      struct internal_reloc dst;
4954
      struct external_reloc *src;
4955
#ifndef RELOC_PROCESSING
4956
      asymbol *ptr;
4957
#endif
4958
 
4959
      cache_ptr = reloc_cache + idx;
4960
      src = native_relocs + idx;
4961
 
4962
      dst.r_offset = 0;
4963
      coff_swap_reloc_in (abfd, src, &dst);
4964
 
4965
#ifdef RELOC_PROCESSING
4966
      RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
4967
#else
4968
      cache_ptr->address = dst.r_vaddr;
4969
 
4970
      if (dst.r_symndx != -1)
4971
        {
4972
          if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd))
4973
            {
4974
              (*_bfd_error_handler)
4975
                (_("%B: warning: illegal symbol index %ld in relocs"),
4976
                 abfd, dst.r_symndx);
4977
              cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4978
              ptr = NULL;
4979
            }
4980
          else
4981
            {
4982
              cache_ptr->sym_ptr_ptr = (symbols
4983
                                        + obj_convert (abfd)[dst.r_symndx]);
4984
              ptr = *(cache_ptr->sym_ptr_ptr);
4985
            }
4986
        }
4987
      else
4988
        {
4989
          cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4990
          ptr = NULL;
4991
        }
4992
 
4993
      /* The symbols definitions that we have read in have been
4994
         relocated as if their sections started at 0. But the offsets
4995
         refering to the symbols in the raw data have not been
4996
         modified, so we have to have a negative addend to compensate.
4997
 
4998
         Note that symbols which used to be common must be left alone.  */
4999
 
5000
      /* Calculate any reloc addend by looking at the symbol.  */
5001
      CALC_ADDEND (abfd, ptr, dst, cache_ptr);
5002
 
5003
      cache_ptr->address -= asect->vma;
5004
      /* !! cache_ptr->section = NULL;*/
5005
 
5006
      /* Fill in the cache_ptr->howto field from dst.r_type.  */
5007
      RTYPE2HOWTO (cache_ptr, &dst);
5008
#endif  /* RELOC_PROCESSING */
5009
 
5010
      if (cache_ptr->howto == NULL)
5011
        {
5012
          (*_bfd_error_handler)
5013
            (_("%B: illegal relocation type %d at address 0x%lx"),
5014
             abfd, dst.r_type, (long) dst.r_vaddr);
5015
          bfd_set_error (bfd_error_bad_value);
5016
          return FALSE;
5017
        }
5018
    }
5019
 
5020
  asect->relocation = reloc_cache;
5021
  return TRUE;
5022
}
5023
 
5024
#ifndef coff_rtype_to_howto
5025
#ifdef RTYPE2HOWTO
5026
 
5027
/* Get the howto structure for a reloc.  This is only used if the file
5028
   including this one defines coff_relocate_section to be
5029
   _bfd_coff_generic_relocate_section, so it is OK if it does not
5030
   always work.  It is the responsibility of the including file to
5031
   make sure it is reasonable if it is needed.  */
5032
 
5033
static reloc_howto_type *
5034
coff_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
5035
                     asection *sec ATTRIBUTE_UNUSED,
5036
                     struct internal_reloc *rel,
5037
                     struct coff_link_hash_entry *h ATTRIBUTE_UNUSED,
5038
                     struct internal_syment *sym ATTRIBUTE_UNUSED,
5039
                     bfd_vma *addendp ATTRIBUTE_UNUSED)
5040
{
5041
  arelent genrel;
5042
 
5043
  genrel.howto = NULL;
5044
  RTYPE2HOWTO (&genrel, rel);
5045
  return genrel.howto;
5046
}
5047
 
5048
#else /* ! defined (RTYPE2HOWTO) */
5049
 
5050
#define coff_rtype_to_howto NULL
5051
 
5052
#endif /* ! defined (RTYPE2HOWTO) */
5053
#endif /* ! defined (coff_rtype_to_howto) */
5054
 
5055
/* This is stupid.  This function should be a boolean predicate.  */
5056
 
5057
static long
5058
coff_canonicalize_reloc (bfd * abfd,
5059
                         sec_ptr section,
5060
                         arelent ** relptr,
5061
                         asymbol ** symbols)
5062
{
5063
  arelent *tblptr = section->relocation;
5064
  unsigned int count = 0;
5065
 
5066
  if (section->flags & SEC_CONSTRUCTOR)
5067
    {
5068
      /* This section has relocs made up by us, they are not in the
5069
         file, so take them out of their chain and place them into
5070
         the data area provided.  */
5071
      arelent_chain *chain = section->constructor_chain;
5072
 
5073
      for (count = 0; count < section->reloc_count; count++)
5074
        {
5075
          *relptr++ = &chain->relent;
5076
          chain = chain->next;
5077
        }
5078
    }
5079
  else
5080
    {
5081
      if (! coff_slurp_reloc_table (abfd, section, symbols))
5082
        return -1;
5083
 
5084
      tblptr = section->relocation;
5085
 
5086
      for (; count++ < section->reloc_count;)
5087
        *relptr++ = tblptr++;
5088
    }
5089
  *relptr = 0;
5090
  return section->reloc_count;
5091
}
5092
 
5093
#ifndef coff_reloc16_estimate
5094
#define coff_reloc16_estimate dummy_reloc16_estimate
5095
 
5096
static int
5097
dummy_reloc16_estimate (bfd *abfd ATTRIBUTE_UNUSED,
5098
                        asection *input_section ATTRIBUTE_UNUSED,
5099
                        arelent *reloc ATTRIBUTE_UNUSED,
5100
                        unsigned int shrink ATTRIBUTE_UNUSED,
5101
                        struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
5102
{
5103
  abort ();
5104
  return 0;
5105
}
5106
 
5107
#endif
5108
 
5109
#ifndef coff_reloc16_extra_cases
5110
 
5111
#define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5112
 
5113
/* This works even if abort is not declared in any header file.  */
5114
 
5115
static void
5116
dummy_reloc16_extra_cases (bfd *abfd ATTRIBUTE_UNUSED,
5117
                           struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
5118
                           struct bfd_link_order *link_order ATTRIBUTE_UNUSED,
5119
                           arelent *reloc ATTRIBUTE_UNUSED,
5120
                           bfd_byte *data ATTRIBUTE_UNUSED,
5121
                           unsigned int *src_ptr ATTRIBUTE_UNUSED,
5122
                           unsigned int *dst_ptr ATTRIBUTE_UNUSED)
5123
{
5124
  abort ();
5125
}
5126
#endif
5127
 
5128
#ifndef coff_bfd_link_hash_table_free
5129
#define coff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
5130
#endif
5131
 
5132
/* If coff_relocate_section is defined, we can use the optimized COFF
5133
   backend linker.  Otherwise we must continue to use the old linker.  */
5134
 
5135
#ifdef coff_relocate_section
5136
 
5137
#ifndef coff_bfd_link_hash_table_create
5138
#define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5139
#endif
5140
#ifndef coff_bfd_link_add_symbols
5141
#define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5142
#endif
5143
#ifndef coff_bfd_final_link
5144
#define coff_bfd_final_link _bfd_coff_final_link
5145
#endif
5146
 
5147
#else /* ! defined (coff_relocate_section) */
5148
 
5149
#define coff_relocate_section NULL
5150
#ifndef coff_bfd_link_hash_table_create
5151
#define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5152
#endif
5153
#ifndef coff_bfd_link_add_symbols
5154
#define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5155
#endif
5156
#define coff_bfd_final_link _bfd_generic_final_link
5157
 
5158
#endif /* ! defined (coff_relocate_section) */
5159
 
5160
#define coff_bfd_link_just_syms      _bfd_generic_link_just_syms
5161
#define coff_bfd_link_split_section  _bfd_generic_link_split_section
5162
 
5163
#ifndef coff_start_final_link
5164
#define coff_start_final_link NULL
5165
#endif
5166
 
5167
#ifndef coff_adjust_symndx
5168
#define coff_adjust_symndx NULL
5169
#endif
5170
 
5171
#ifndef coff_link_add_one_symbol
5172
#define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5173
#endif
5174
 
5175
#ifndef coff_link_output_has_begun
5176
 
5177
static bfd_boolean
5178
coff_link_output_has_begun (bfd * abfd,
5179
                            struct coff_final_link_info * info ATTRIBUTE_UNUSED)
5180
{
5181
  return abfd->output_has_begun;
5182
}
5183
#endif
5184
 
5185
#ifndef coff_final_link_postscript
5186
 
5187
static bfd_boolean
5188
coff_final_link_postscript (bfd * abfd ATTRIBUTE_UNUSED,
5189
                            struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED)
5190
{
5191
  return TRUE;
5192
}
5193
#endif
5194
 
5195
#ifndef coff_SWAP_aux_in
5196
#define coff_SWAP_aux_in coff_swap_aux_in
5197
#endif
5198
#ifndef coff_SWAP_sym_in
5199
#define coff_SWAP_sym_in coff_swap_sym_in
5200
#endif
5201
#ifndef coff_SWAP_lineno_in
5202
#define coff_SWAP_lineno_in coff_swap_lineno_in
5203
#endif
5204
#ifndef coff_SWAP_aux_out
5205
#define coff_SWAP_aux_out coff_swap_aux_out
5206
#endif
5207
#ifndef coff_SWAP_sym_out
5208
#define coff_SWAP_sym_out coff_swap_sym_out
5209
#endif
5210
#ifndef coff_SWAP_lineno_out
5211
#define coff_SWAP_lineno_out coff_swap_lineno_out
5212
#endif
5213
#ifndef coff_SWAP_reloc_out
5214
#define coff_SWAP_reloc_out coff_swap_reloc_out
5215
#endif
5216
#ifndef coff_SWAP_filehdr_out
5217
#define coff_SWAP_filehdr_out coff_swap_filehdr_out
5218
#endif
5219
#ifndef coff_SWAP_aouthdr_out
5220
#define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5221
#endif
5222
#ifndef coff_SWAP_scnhdr_out
5223
#define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5224
#endif
5225
#ifndef coff_SWAP_reloc_in
5226
#define coff_SWAP_reloc_in coff_swap_reloc_in
5227
#endif
5228
#ifndef coff_SWAP_filehdr_in
5229
#define coff_SWAP_filehdr_in coff_swap_filehdr_in
5230
#endif
5231
#ifndef coff_SWAP_aouthdr_in
5232
#define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5233
#endif
5234
#ifndef coff_SWAP_scnhdr_in
5235
#define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5236
#endif
5237
 
5238
static const bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED =
5239
{
5240
  coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5241
  coff_SWAP_aux_out, coff_SWAP_sym_out,
5242
  coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5243
  coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5244
  coff_SWAP_scnhdr_out,
5245
  FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5246
#ifdef COFF_LONG_FILENAMES
5247
  TRUE,
5248
#else
5249
  FALSE,
5250
#endif
5251
#ifdef COFF_LONG_SECTION_NAMES
5252
  TRUE,
5253
#else
5254
  FALSE,
5255
#endif
5256
  COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5257
#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5258
  TRUE,
5259
#else
5260
  FALSE,
5261
#endif
5262
#ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5263
  4,
5264
#else
5265
  2,
5266
#endif
5267
  coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5268
  coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
5269
  coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5270
  coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5271
  coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5272
  coff_classify_symbol, coff_compute_section_file_positions,
5273
  coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5274
  coff_adjust_symndx, coff_link_add_one_symbol,
5275
  coff_link_output_has_begun, coff_final_link_postscript,
5276
  bfd_pe_print_pdata
5277
};
5278
 
5279
#ifdef TICOFF
5280
/* COFF0 differs in file/section header size and relocation entry size.  */
5281
 
5282
static const bfd_coff_backend_data ticoff0_swap_table =
5283
{
5284
  coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5285
  coff_SWAP_aux_out, coff_SWAP_sym_out,
5286
  coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5287
  coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5288
  coff_SWAP_scnhdr_out,
5289
  FILHSZ_V0, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ_V0, LINESZ, FILNMLEN,
5290
#ifdef COFF_LONG_FILENAMES
5291
  TRUE,
5292
#else
5293
  FALSE,
5294
#endif
5295
#ifdef COFF_LONG_SECTION_NAMES
5296
  TRUE,
5297
#else
5298
  FALSE,
5299
#endif
5300
  COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5301
#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5302
  TRUE,
5303
#else
5304
  FALSE,
5305
#endif
5306
#ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5307
  4,
5308
#else
5309
  2,
5310
#endif
5311
  coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5312
  coff_SWAP_reloc_in, ticoff0_bad_format_hook, coff_set_arch_mach_hook,
5313
  coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5314
  coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5315
  coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5316
  coff_classify_symbol, coff_compute_section_file_positions,
5317
  coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5318
  coff_adjust_symndx, coff_link_add_one_symbol,
5319
  coff_link_output_has_begun, coff_final_link_postscript,
5320
  bfd_pe_print_pdata
5321
};
5322
#endif
5323
 
5324
#ifdef TICOFF
5325
/* COFF1 differs in section header size.  */
5326
 
5327
static const bfd_coff_backend_data ticoff1_swap_table =
5328
{
5329
  coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5330
  coff_SWAP_aux_out, coff_SWAP_sym_out,
5331
  coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5332
  coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5333
  coff_SWAP_scnhdr_out,
5334
  FILHSZ, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5335
#ifdef COFF_LONG_FILENAMES
5336
  TRUE,
5337
#else
5338
  FALSE,
5339
#endif
5340
#ifdef COFF_LONG_SECTION_NAMES
5341
  TRUE,
5342
#else
5343
  FALSE,
5344
#endif
5345
  COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5346
#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5347
  TRUE,
5348
#else
5349
  FALSE,
5350
#endif
5351
#ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5352
  4,
5353
#else
5354
  2,
5355
#endif
5356
  coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5357
  coff_SWAP_reloc_in, ticoff1_bad_format_hook, coff_set_arch_mach_hook,
5358
  coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5359
  coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5360
  coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5361
  coff_classify_symbol, coff_compute_section_file_positions,
5362
  coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5363
  coff_adjust_symndx, coff_link_add_one_symbol,
5364
  coff_link_output_has_begun, coff_final_link_postscript,
5365
  bfd_pe_print_pdata    /* huh */
5366
};
5367
#endif
5368
 
5369
#ifndef coff_close_and_cleanup
5370
#define coff_close_and_cleanup              _bfd_generic_close_and_cleanup
5371
#endif
5372
 
5373
#ifndef coff_bfd_free_cached_info
5374
#define coff_bfd_free_cached_info           _bfd_generic_bfd_free_cached_info
5375
#endif
5376
 
5377
#ifndef coff_get_section_contents
5378
#define coff_get_section_contents           _bfd_generic_get_section_contents
5379
#endif
5380
 
5381
#ifndef coff_bfd_copy_private_symbol_data
5382
#define coff_bfd_copy_private_symbol_data   _bfd_generic_bfd_copy_private_symbol_data
5383
#endif
5384
 
5385
#ifndef coff_bfd_copy_private_header_data
5386
#define coff_bfd_copy_private_header_data   _bfd_generic_bfd_copy_private_header_data
5387
#endif
5388
 
5389
#ifndef coff_bfd_copy_private_section_data
5390
#define coff_bfd_copy_private_section_data  _bfd_generic_bfd_copy_private_section_data
5391
#endif
5392
 
5393
#ifndef coff_bfd_copy_private_bfd_data
5394
#define coff_bfd_copy_private_bfd_data      _bfd_generic_bfd_copy_private_bfd_data
5395
#endif
5396
 
5397
#ifndef coff_bfd_merge_private_bfd_data
5398
#define coff_bfd_merge_private_bfd_data     _bfd_generic_bfd_merge_private_bfd_data
5399
#endif
5400
 
5401
#ifndef coff_bfd_set_private_flags
5402
#define coff_bfd_set_private_flags          _bfd_generic_bfd_set_private_flags
5403
#endif
5404
 
5405
#ifndef coff_bfd_print_private_bfd_data
5406
#define coff_bfd_print_private_bfd_data     _bfd_generic_bfd_print_private_bfd_data
5407
#endif
5408
 
5409
#ifndef coff_bfd_is_local_label_name
5410
#define coff_bfd_is_local_label_name        _bfd_coff_is_local_label_name
5411
#endif
5412
 
5413
#ifndef coff_bfd_is_target_special_symbol
5414
#define coff_bfd_is_target_special_symbol   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
5415
#endif
5416
 
5417
#ifndef coff_read_minisymbols
5418
#define coff_read_minisymbols               _bfd_generic_read_minisymbols
5419
#endif
5420
 
5421
#ifndef coff_minisymbol_to_symbol
5422
#define coff_minisymbol_to_symbol           _bfd_generic_minisymbol_to_symbol
5423
#endif
5424
 
5425
/* The reloc lookup routine must be supplied by each individual COFF
5426
   backend.  */
5427
#ifndef coff_bfd_reloc_type_lookup
5428
#define coff_bfd_reloc_type_lookup          _bfd_norelocs_bfd_reloc_type_lookup
5429
#endif
5430
#ifndef coff_bfd_reloc_name_lookup
5431
#define coff_bfd_reloc_name_lookup    _bfd_norelocs_bfd_reloc_name_lookup
5432
#endif
5433
 
5434
#ifndef coff_bfd_get_relocated_section_contents
5435
#define coff_bfd_get_relocated_section_contents \
5436
  bfd_generic_get_relocated_section_contents
5437
#endif
5438
 
5439
#ifndef coff_bfd_relax_section
5440
#define coff_bfd_relax_section              bfd_generic_relax_section
5441
#endif
5442
 
5443
#ifndef coff_bfd_gc_sections
5444
#define coff_bfd_gc_sections                bfd_generic_gc_sections
5445
#endif
5446
 
5447
#ifndef coff_bfd_merge_sections
5448
#define coff_bfd_merge_sections             bfd_generic_merge_sections
5449
#endif
5450
 
5451
#ifndef coff_bfd_is_group_section
5452
#define coff_bfd_is_group_section           bfd_generic_is_group_section
5453
#endif
5454
 
5455
#ifndef coff_bfd_discard_group
5456
#define coff_bfd_discard_group              bfd_generic_discard_group
5457
#endif
5458
 
5459
#ifndef coff_section_already_linked
5460
#define coff_section_already_linked \
5461
  _bfd_generic_section_already_linked
5462
#endif
5463
 
5464
#define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE)     \
5465
const bfd_target VAR =                                                  \
5466
{                                                                       \
5467
  NAME ,                                                                \
5468
  bfd_target_coff_flavour,                                              \
5469
  BFD_ENDIAN_BIG,               /* Data byte order is big.  */          \
5470
  BFD_ENDIAN_BIG,               /* Header byte order is big.  */        \
5471
  /* object flags */                                                    \
5472
  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG |                        \
5473
   HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS),                    \
5474
  /* section flags */                                                   \
5475
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5476
  UNDER,                        /* Leading symbol underscore.  */       \
5477
  '/',                          /* AR_pad_char.  */                     \
5478
  15,                           /* AR_max_namelen.  */                  \
5479
                                                                        \
5480
  /* Data conversion functions.  */                                     \
5481
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,                           \
5482
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,                           \
5483
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,                           \
5484
                                                                        \
5485
  /* Header conversion functions.  */                                   \
5486
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,                           \
5487
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,                           \
5488
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,                           \
5489
                                                                        \
5490
        /* bfd_check_format.  */                                        \
5491
  { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p,            \
5492
    _bfd_dummy_target },                                                \
5493
        /* bfd_set_format.  */                                          \
5494
  { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false },      \
5495
        /* bfd_write_contents.  */                                      \
5496
  { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5497
    bfd_false },                                                        \
5498
                                                                        \
5499
  BFD_JUMP_TABLE_GENERIC (coff),                                        \
5500
  BFD_JUMP_TABLE_COPY (coff),                                           \
5501
  BFD_JUMP_TABLE_CORE (_bfd_nocore),                                    \
5502
  BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),                           \
5503
  BFD_JUMP_TABLE_SYMBOLS (coff),                                        \
5504
  BFD_JUMP_TABLE_RELOCS (coff),                                         \
5505
  BFD_JUMP_TABLE_WRITE (coff),                                          \
5506
  BFD_JUMP_TABLE_LINK (coff),                                           \
5507
  BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),                              \
5508
                                                                        \
5509
  ALTERNATIVE,                                                          \
5510
                                                                        \
5511
  SWAP_TABLE                                                            \
5512
};
5513
 
5514
#define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE)  \
5515
const bfd_target VAR =                                                  \
5516
{                                                                       \
5517
  NAME ,                                                                \
5518
  bfd_target_coff_flavour,                                              \
5519
  BFD_ENDIAN_LITTLE,            /* Data byte order is little.  */       \
5520
  BFD_ENDIAN_BIG,               /* Header byte order is big.  */        \
5521
  /* object flags */                                                    \
5522
  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG |                        \
5523
   HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS),                    \
5524
  /* section flags */                                                   \
5525
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5526
  UNDER,                        /* Leading symbol underscore.  */       \
5527
  '/',                          /* AR_pad_char.  */                     \
5528
  15,                           /* AR_max_namelen.  */                  \
5529
                                                                        \
5530
  /* Data conversion functions.  */                                     \
5531
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,                           \
5532
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,                           \
5533
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,                           \
5534
                                                                        \
5535
  /* Header conversion functions.  */                                   \
5536
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,                           \
5537
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,                           \
5538
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,                           \
5539
                                                                        \
5540
        /* bfd_check_format.  */                                        \
5541
  { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p,            \
5542
    _bfd_dummy_target },                                                \
5543
        /* bfd_set_format.  */                                          \
5544
  { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false },      \
5545
        /* bfd_write_contents.  */                                      \
5546
  { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5547
    bfd_false },                                                        \
5548
                                                                        \
5549
  BFD_JUMP_TABLE_GENERIC (coff),                                        \
5550
  BFD_JUMP_TABLE_COPY (coff),                                           \
5551
  BFD_JUMP_TABLE_CORE (_bfd_nocore),                                    \
5552
  BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),                           \
5553
  BFD_JUMP_TABLE_SYMBOLS (coff),                                        \
5554
  BFD_JUMP_TABLE_RELOCS (coff),                                         \
5555
  BFD_JUMP_TABLE_WRITE (coff),                                          \
5556
  BFD_JUMP_TABLE_LINK (coff),                                           \
5557
  BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),                              \
5558
                                                                        \
5559
  ALTERNATIVE,                                                          \
5560
                                                                        \
5561
  SWAP_TABLE                                                            \
5562
};
5563
 
5564
#define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE)  \
5565
const bfd_target VAR =                                                  \
5566
{                                                                       \
5567
  NAME ,                                                                \
5568
  bfd_target_coff_flavour,                                              \
5569
  BFD_ENDIAN_LITTLE,            /* Data byte order is little.  */       \
5570
  BFD_ENDIAN_LITTLE,            /* Header byte order is little.  */     \
5571
        /* object flags */                                              \
5572
  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG |                        \
5573
   HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS),                    \
5574
        /* section flags */                                             \
5575
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5576
  UNDER,                        /* Leading symbol underscore.  */       \
5577
  '/',                          /* AR_pad_char.  */                     \
5578
  15,                           /* AR_max_namelen.  */                  \
5579
                                                                        \
5580
  /* Data conversion functions.  */                                     \
5581
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,                           \
5582
  bfd_getl32, bfd_getl_signed_32, bfd_putl32,                           \
5583
  bfd_getl16, bfd_getl_signed_16, bfd_putl16,                           \
5584
  /* Header conversion functions.  */                                   \
5585
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,                           \
5586
  bfd_getl32, bfd_getl_signed_32, bfd_putl32,                           \
5587
  bfd_getl16, bfd_getl_signed_16, bfd_putl16,                           \
5588
        /* bfd_check_format.  */                                        \
5589
  { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p,            \
5590
    _bfd_dummy_target },                                                \
5591
       /* bfd_set_format.  */                                           \
5592
  { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false },      \
5593
        /* bfd_write_contents.  */                                      \
5594
  { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5595
    bfd_false },                                                        \
5596
                                                                        \
5597
  BFD_JUMP_TABLE_GENERIC (coff),                                        \
5598
  BFD_JUMP_TABLE_COPY (coff),                                           \
5599
  BFD_JUMP_TABLE_CORE (_bfd_nocore),                                    \
5600
  BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),                           \
5601
  BFD_JUMP_TABLE_SYMBOLS (coff),                                        \
5602
  BFD_JUMP_TABLE_RELOCS (coff),                                         \
5603
  BFD_JUMP_TABLE_WRITE (coff),                                          \
5604
  BFD_JUMP_TABLE_LINK (coff),                                           \
5605
  BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),                              \
5606
                                                                        \
5607
  ALTERNATIVE,                                                          \
5608
                                                                        \
5609
  SWAP_TABLE                                                            \
5610
};

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