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[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.20.1/] [gas/] [write.c] - Blame information for rev 221

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1 205 julius
/* write.c - emit .o file
2
   Copyright 1986, 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
3
   1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4
   Free Software Foundation, Inc.
5
 
6
   This file is part of GAS, the GNU Assembler.
7
 
8
   GAS is free software; you can redistribute it and/or modify
9
   it under the terms of the GNU General Public License as published by
10
   the Free Software Foundation; either version 3, or (at your option)
11
   any later version.
12
 
13
   GAS is distributed in the hope that it will be useful,
14
   but WITHOUT ANY WARRANTY; without even the implied warranty of
15
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
   GNU General Public License for more details.
17
 
18
   You should have received a copy of the GNU General Public License
19
   along with GAS; see the file COPYING.  If not, write to the Free
20
   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
21
   02110-1301, USA.  */
22
 
23
/* This thing should be set up to do byteordering correctly.  But...  */
24
 
25
#include "as.h"
26
#include "subsegs.h"
27
#include "obstack.h"
28
#include "output-file.h"
29
#include "dwarf2dbg.h"
30
#include "libbfd.h"
31
 
32
#ifndef TC_ADJUST_RELOC_COUNT
33
#define TC_ADJUST_RELOC_COUNT(FIX, COUNT)
34
#endif
35
 
36
#ifndef TC_FORCE_RELOCATION
37
#define TC_FORCE_RELOCATION(FIX)                \
38
  (generic_force_reloc (FIX))
39
#endif
40
 
41
#ifndef TC_FORCE_RELOCATION_ABS
42
#define TC_FORCE_RELOCATION_ABS(FIX)            \
43
  (TC_FORCE_RELOCATION (FIX))
44
#endif
45
 
46
#ifndef TC_FORCE_RELOCATION_LOCAL
47
#define TC_FORCE_RELOCATION_LOCAL(FIX)          \
48
  (!(FIX)->fx_pcrel                             \
49
   || TC_FORCE_RELOCATION (FIX))
50
#endif
51
 
52
#ifndef TC_FORCE_RELOCATION_SUB_SAME
53
#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG)  \
54
  (! SEG_NORMAL (SEG))
55
#endif
56
 
57
#ifndef md_register_arithmetic
58
# define md_register_arithmetic 1
59
#endif
60
 
61
#ifndef TC_FORCE_RELOCATION_SUB_ABS
62
#define TC_FORCE_RELOCATION_SUB_ABS(FIX, SEG)   \
63
  (!md_register_arithmetic && (SEG) == reg_section)
64
#endif
65
 
66
#ifndef TC_FORCE_RELOCATION_SUB_LOCAL
67
#ifdef DIFF_EXPR_OK
68
#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) \
69
  (!md_register_arithmetic && (SEG) == reg_section)
70
#else
71
#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) 1
72
#endif
73
#endif
74
 
75
#ifndef TC_VALIDATE_FIX_SUB
76
#ifdef UNDEFINED_DIFFERENCE_OK
77
/* The PA needs this for PIC code generation.  */
78
#define TC_VALIDATE_FIX_SUB(FIX, SEG)                   \
79
  (md_register_arithmetic || (SEG) != reg_section)
80
#else
81
#define TC_VALIDATE_FIX_SUB(FIX, SEG)                   \
82
  ((md_register_arithmetic || (SEG) != reg_section)     \
83
   && ((FIX)->fx_r_type == BFD_RELOC_GPREL32            \
84
       || (FIX)->fx_r_type == BFD_RELOC_GPREL16))
85
#endif
86
#endif
87
 
88
#ifndef TC_LINKRELAX_FIXUP
89
#define TC_LINKRELAX_FIXUP(SEG) 1
90
#endif
91
 
92
#ifndef MD_APPLY_SYM_VALUE
93
#define MD_APPLY_SYM_VALUE(FIX) 1
94
#endif
95
 
96
#ifndef TC_FINALIZE_SYMS_BEFORE_SIZE_SEG
97
#define TC_FINALIZE_SYMS_BEFORE_SIZE_SEG 1
98
#endif
99
 
100
#ifndef MD_PCREL_FROM_SECTION
101
#define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from (FIX)
102
#endif
103
 
104
#ifndef TC_FAKE_LABEL
105
#define TC_FAKE_LABEL(NAME) (strcmp ((NAME), FAKE_LABEL_NAME) == 0)
106
#endif
107
 
108
/* Positive values of TC_FX_SIZE_SLACK allow a target to define
109
   fixups that far past the end of a frag.  Having such fixups
110
   is of course most most likely a bug in setting fx_size correctly.
111
   A negative value disables the fixup check entirely, which is
112
   appropriate for something like the Renesas / SuperH SH_COUNT
113
   reloc.  */
114
#ifndef TC_FX_SIZE_SLACK
115
#define TC_FX_SIZE_SLACK(FIX) 0
116
#endif
117
 
118
/* Used to control final evaluation of expressions.  */
119
int finalize_syms = 0;
120
 
121
int symbol_table_frozen;
122
 
123
symbolS *abs_section_sym;
124
 
125
/* Remember the value of dot when parsing expressions.  */
126
addressT dot_value;
127
 
128
/* Relocs generated by ".reloc" pseudo.  */
129
struct reloc_list* reloc_list;
130
 
131
void print_fixup (fixS *);
132
 
133
/* We generally attach relocs to frag chains.  However, after we have
134
   chained these all together into a segment, any relocs we add after
135
   that must be attached to a segment.  This will include relocs added
136
   in md_estimate_size_for_relax, for example.  */
137
static int frags_chained = 0;
138
 
139
static int n_fixups;
140
 
141
#define RELOC_ENUM enum bfd_reloc_code_real
142
 
143
/* Create a fixS in obstack 'notes'.  */
144
 
145
static fixS *
146
fix_new_internal (fragS *frag,          /* Which frag?  */
147
                  int where,            /* Where in that frag?  */
148
                  int size,             /* 1, 2, or 4 usually.  */
149
                  symbolS *add_symbol,  /* X_add_symbol.  */
150
                  symbolS *sub_symbol,  /* X_op_symbol.  */
151
                  offsetT offset,       /* X_add_number.  */
152
                  int pcrel,            /* TRUE if PC-relative relocation.  */
153
                  RELOC_ENUM r_type ATTRIBUTE_UNUSED /* Relocation type.  */,
154
                  int at_beginning)     /* Add to the start of the list?  */
155
{
156
  fixS *fixP;
157
 
158
  n_fixups++;
159
 
160
  fixP = (fixS *) obstack_alloc (&notes, sizeof (fixS));
161
 
162
  fixP->fx_frag = frag;
163
  fixP->fx_where = where;
164
  fixP->fx_size = size;
165
  /* We've made fx_size a narrow field; check that it's wide enough.  */
166
  if (fixP->fx_size != size)
167
    {
168
      as_bad (_("field fx_size too small to hold %d"), size);
169
      abort ();
170
    }
171
  fixP->fx_addsy = add_symbol;
172
  fixP->fx_subsy = sub_symbol;
173
  fixP->fx_offset = offset;
174
  fixP->fx_dot_value = dot_value;
175
  fixP->fx_pcrel = pcrel;
176
  fixP->fx_r_type = r_type;
177
  fixP->fx_im_disp = 0;
178
  fixP->fx_pcrel_adjust = 0;
179
  fixP->fx_bit_fixP = 0;
180
  fixP->fx_addnumber = 0;
181
  fixP->fx_tcbit = 0;
182
  fixP->fx_tcbit2 = 0;
183
  fixP->fx_done = 0;
184
  fixP->fx_no_overflow = 0;
185
  fixP->fx_signed = 0;
186
 
187
#ifdef USING_CGEN
188
  fixP->fx_cgen.insn = NULL;
189
  fixP->fx_cgen.opinfo = 0;
190
#endif
191
 
192
#ifdef TC_FIX_TYPE
193
  TC_INIT_FIX_DATA (fixP);
194
#endif
195
 
196
  as_where (&fixP->fx_file, &fixP->fx_line);
197
 
198
  {
199
 
200
    fixS **seg_fix_rootP = (frags_chained
201
                            ? &seg_info (now_seg)->fix_root
202
                            : &frchain_now->fix_root);
203
    fixS **seg_fix_tailP = (frags_chained
204
                            ? &seg_info (now_seg)->fix_tail
205
                            : &frchain_now->fix_tail);
206
 
207
    if (at_beginning)
208
      {
209
        fixP->fx_next = *seg_fix_rootP;
210
        *seg_fix_rootP = fixP;
211
        if (fixP->fx_next == NULL)
212
          *seg_fix_tailP = fixP;
213
      }
214
    else
215
      {
216
        fixP->fx_next = NULL;
217
        if (*seg_fix_tailP)
218
          (*seg_fix_tailP)->fx_next = fixP;
219
        else
220
          *seg_fix_rootP = fixP;
221
        *seg_fix_tailP = fixP;
222
      }
223
  }
224
 
225
  return fixP;
226
}
227
 
228
/* Create a fixup relative to a symbol (plus a constant).  */
229
 
230
fixS *
231
fix_new (fragS *frag,           /* Which frag?  */
232
         int where,                     /* Where in that frag?  */
233
         int size,                      /* 1, 2, or 4 usually.  */
234
         symbolS *add_symbol,   /* X_add_symbol.  */
235
         offsetT offset,                /* X_add_number.  */
236
         int pcrel,                     /* TRUE if PC-relative relocation.  */
237
         RELOC_ENUM r_type              /* Relocation type.  */)
238
{
239
  return fix_new_internal (frag, where, size, add_symbol,
240
                           (symbolS *) NULL, offset, pcrel, r_type, FALSE);
241
}
242
 
243
/* Create a fixup for an expression.  Currently we only support fixups
244
   for difference expressions.  That is itself more than most object
245
   file formats support anyhow.  */
246
 
247
fixS *
248
fix_new_exp (fragS *frag,               /* Which frag?  */
249
             int where,                 /* Where in that frag?  */
250
             int size,                  /* 1, 2, or 4 usually.  */
251
             expressionS *exp,          /* Expression.  */
252
             int pcrel,                 /* TRUE if PC-relative relocation.  */
253
             RELOC_ENUM r_type          /* Relocation type.  */)
254
{
255
  symbolS *add = NULL;
256
  symbolS *sub = NULL;
257
  offsetT off = 0;
258
 
259
  switch (exp->X_op)
260
    {
261
    case O_absent:
262
      break;
263
 
264
    case O_register:
265
      as_bad (_("register value used as expression"));
266
      break;
267
 
268
    case O_add:
269
      /* This comes up when _GLOBAL_OFFSET_TABLE_+(.-L0) is read, if
270
         the difference expression cannot immediately be reduced.  */
271
      {
272
        symbolS *stmp = make_expr_symbol (exp);
273
 
274
        exp->X_op = O_symbol;
275
        exp->X_op_symbol = 0;
276
        exp->X_add_symbol = stmp;
277
        exp->X_add_number = 0;
278
 
279
        return fix_new_exp (frag, where, size, exp, pcrel, r_type);
280
      }
281
 
282
    case O_symbol_rva:
283
      add = exp->X_add_symbol;
284
      off = exp->X_add_number;
285
      r_type = BFD_RELOC_RVA;
286
      break;
287
 
288
    case O_uminus:
289
      sub = exp->X_add_symbol;
290
      off = exp->X_add_number;
291
      break;
292
 
293
    case O_subtract:
294
      sub = exp->X_op_symbol;
295
      /* Fall through.  */
296
    case O_symbol:
297
      add = exp->X_add_symbol;
298
      /* Fall through.  */
299
    case O_constant:
300
      off = exp->X_add_number;
301
      break;
302
 
303
    default:
304
      add = make_expr_symbol (exp);
305
      break;
306
    }
307
 
308
  return fix_new_internal (frag, where, size, add, sub, off, pcrel,
309
                           r_type, FALSE);
310
}
311
 
312
/* Create a fixup at the beginning of FRAG.  The arguments are the same
313
   as for fix_new, except that WHERE is implicitly 0.  */
314
 
315
fixS *
316
fix_at_start (fragS *frag, int size, symbolS *add_symbol,
317
              offsetT offset, int pcrel, RELOC_ENUM r_type)
318
{
319
  return fix_new_internal (frag, 0, size, add_symbol,
320
                           (symbolS *) NULL, offset, pcrel, r_type, TRUE);
321
}
322
 
323
/* Generic function to determine whether a fixup requires a relocation.  */
324
int
325
generic_force_reloc (fixS *fix)
326
{
327
  if (fix->fx_r_type == BFD_RELOC_VTABLE_INHERIT
328
      || fix->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
329
    return 1;
330
 
331
  if (fix->fx_addsy == NULL)
332
    return 0;
333
 
334
  return S_FORCE_RELOC (fix->fx_addsy, fix->fx_subsy == NULL);
335
}
336
 
337
/* Append a string onto another string, bumping the pointer along.  */
338
void
339
append (char **charPP, char *fromP, unsigned long length)
340
{
341
  /* Don't trust memcpy() of 0 chars.  */
342
  if (length == 0)
343
    return;
344
 
345
  memcpy (*charPP, fromP, length);
346
  *charPP += length;
347
}
348
 
349
/* This routine records the largest alignment seen for each segment.
350
   If the beginning of the segment is aligned on the worst-case
351
   boundary, all of the other alignments within it will work.  At
352
   least one object format really uses this info.  */
353
 
354
void
355
record_alignment (/* Segment to which alignment pertains.  */
356
                  segT seg,
357
                  /* Alignment, as a power of 2 (e.g., 1 => 2-byte
358
                     boundary, 2 => 4-byte boundary, etc.)  */
359
                  int align)
360
{
361
  if (seg == absolute_section)
362
    return;
363
 
364
  if ((unsigned int) align > bfd_get_section_alignment (stdoutput, seg))
365
    bfd_set_section_alignment (stdoutput, seg, align);
366
}
367
 
368
int
369
get_recorded_alignment (segT seg)
370
{
371
  if (seg == absolute_section)
372
    return 0;
373
 
374
  return bfd_get_section_alignment (stdoutput, seg);
375
}
376
 
377
/* Reset the section indices after removing the gas created sections.  */
378
 
379
static void
380
renumber_sections (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *countparg)
381
{
382
  int *countp = (int *) countparg;
383
 
384
  sec->index = *countp;
385
  ++*countp;
386
}
387
 
388
static fragS *
389
chain_frchains_together_1 (segT section, struct frchain *frchp)
390
{
391
  fragS dummy, *prev_frag = &dummy;
392
  fixS fix_dummy, *prev_fix = &fix_dummy;
393
 
394
  for (; frchp; frchp = frchp->frch_next)
395
    {
396
      prev_frag->fr_next = frchp->frch_root;
397
      prev_frag = frchp->frch_last;
398
      gas_assert (prev_frag->fr_type != 0);
399
      if (frchp->fix_root != (fixS *) NULL)
400
        {
401
          if (seg_info (section)->fix_root == (fixS *) NULL)
402
            seg_info (section)->fix_root = frchp->fix_root;
403
          prev_fix->fx_next = frchp->fix_root;
404
          seg_info (section)->fix_tail = frchp->fix_tail;
405
          prev_fix = frchp->fix_tail;
406
        }
407
    }
408
  gas_assert (prev_frag->fr_type != 0);
409
  gas_assert (prev_frag != &dummy);
410
  prev_frag->fr_next = 0;
411
  return prev_frag;
412
}
413
 
414
static void
415
chain_frchains_together (bfd *abfd ATTRIBUTE_UNUSED,
416
                         segT section,
417
                         void *xxx ATTRIBUTE_UNUSED)
418
{
419
  segment_info_type *info;
420
 
421
  /* BFD may have introduced its own sections without using
422
     subseg_new, so it is possible that seg_info is NULL.  */
423
  info = seg_info (section);
424
  if (info != (segment_info_type *) NULL)
425
    info->frchainP->frch_last
426
      = chain_frchains_together_1 (section, info->frchainP);
427
 
428
  /* Now that we've chained the frags together, we must add new fixups
429
     to the segment, not to the frag chain.  */
430
  frags_chained = 1;
431
}
432
 
433
static void
434
cvt_frag_to_fill (segT sec ATTRIBUTE_UNUSED, fragS *fragP)
435
{
436
  switch (fragP->fr_type)
437
    {
438
    case rs_align:
439
    case rs_align_code:
440
    case rs_align_test:
441
    case rs_org:
442
    case rs_space:
443
#ifdef HANDLE_ALIGN
444
      HANDLE_ALIGN (fragP);
445
#endif
446
      know (fragP->fr_next != NULL);
447
      fragP->fr_offset = (fragP->fr_next->fr_address
448
                          - fragP->fr_address
449
                          - fragP->fr_fix) / fragP->fr_var;
450
      if (fragP->fr_offset < 0)
451
        {
452
          as_bad_where (fragP->fr_file, fragP->fr_line,
453
                        _("attempt to .org/.space backwards? (%ld)"),
454
                        (long) fragP->fr_offset);
455
          fragP->fr_offset = 0;
456
        }
457
      fragP->fr_type = rs_fill;
458
      break;
459
 
460
    case rs_fill:
461
      break;
462
 
463
    case rs_leb128:
464
      {
465
        valueT value = S_GET_VALUE (fragP->fr_symbol);
466
        int size;
467
 
468
        size = output_leb128 (fragP->fr_literal + fragP->fr_fix, value,
469
                              fragP->fr_subtype);
470
 
471
        fragP->fr_fix += size;
472
        fragP->fr_type = rs_fill;
473
        fragP->fr_var = 0;
474
        fragP->fr_offset = 0;
475
        fragP->fr_symbol = NULL;
476
      }
477
      break;
478
 
479
    case rs_cfa:
480
      eh_frame_convert_frag (fragP);
481
      break;
482
 
483
    case rs_dwarf2dbg:
484
      dwarf2dbg_convert_frag (fragP);
485
      break;
486
 
487
    case rs_machine_dependent:
488
      md_convert_frag (stdoutput, sec, fragP);
489
 
490
      gas_assert (fragP->fr_next == NULL
491
              || ((offsetT) (fragP->fr_next->fr_address - fragP->fr_address)
492
                  == fragP->fr_fix));
493
 
494
      /* After md_convert_frag, we make the frag into a ".space 0".
495
         md_convert_frag() should set up any fixSs and constants
496
         required.  */
497
      frag_wane (fragP);
498
      break;
499
 
500
#ifndef WORKING_DOT_WORD
501
    case rs_broken_word:
502
      {
503
        struct broken_word *lie;
504
 
505
        if (fragP->fr_subtype)
506
          {
507
            fragP->fr_fix += md_short_jump_size;
508
            for (lie = (struct broken_word *) (fragP->fr_symbol);
509
                 lie && lie->dispfrag == fragP;
510
                 lie = lie->next_broken_word)
511
              if (lie->added == 1)
512
                fragP->fr_fix += md_long_jump_size;
513
          }
514
        frag_wane (fragP);
515
      }
516
      break;
517
#endif
518
 
519
    default:
520
      BAD_CASE (fragP->fr_type);
521
      break;
522
    }
523
#ifdef md_frag_check
524
  md_frag_check (fragP);
525
#endif
526
}
527
 
528
struct relax_seg_info
529
{
530
  int pass;
531
  int changed;
532
};
533
 
534
static void
535
relax_seg (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *xxx)
536
{
537
  segment_info_type *seginfo = seg_info (sec);
538
  struct relax_seg_info *info = (struct relax_seg_info *) xxx;
539
 
540
  if (seginfo && seginfo->frchainP
541
      && relax_segment (seginfo->frchainP->frch_root, sec, info->pass))
542
    info->changed = 1;
543
}
544
 
545
static void
546
size_seg (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED)
547
{
548
  flagword flags;
549
  fragS *fragp;
550
  segment_info_type *seginfo;
551
  int x;
552
  valueT size, newsize;
553
 
554
  subseg_change (sec, 0);
555
 
556
  seginfo = seg_info (sec);
557
  if (seginfo && seginfo->frchainP)
558
    {
559
      for (fragp = seginfo->frchainP->frch_root; fragp; fragp = fragp->fr_next)
560
        cvt_frag_to_fill (sec, fragp);
561
      for (fragp = seginfo->frchainP->frch_root;
562
           fragp->fr_next;
563
           fragp = fragp->fr_next)
564
        /* Walk to last elt.  */
565
        ;
566
      size = fragp->fr_address + fragp->fr_fix;
567
    }
568
  else
569
    size = 0;
570
 
571
  flags = bfd_get_section_flags (abfd, sec);
572
  if (size == 0 && bfd_get_section_size (sec) != 0 &&
573
    (flags & SEC_HAS_CONTENTS) != 0)
574
    return;
575
 
576
  if (size > 0 && ! seginfo->bss)
577
    flags |= SEC_HAS_CONTENTS;
578
 
579
  flags &= ~SEC_RELOC;
580
  x = bfd_set_section_flags (abfd, sec, flags);
581
  gas_assert (x);
582
 
583
  newsize = md_section_align (sec, size);
584
  x = bfd_set_section_size (abfd, sec, newsize);
585
  gas_assert (x);
586
 
587
  /* If the size had to be rounded up, add some padding in the last
588
     non-empty frag.  */
589
  gas_assert (newsize >= size);
590
  if (size != newsize)
591
    {
592
      fragS *last = seginfo->frchainP->frch_last;
593
      fragp = seginfo->frchainP->frch_root;
594
      while (fragp->fr_next != last)
595
        fragp = fragp->fr_next;
596
      last->fr_address = size;
597
      if ((newsize - size) % fragp->fr_var == 0)
598
        fragp->fr_offset += (newsize - size) / fragp->fr_var;
599
      else
600
        /* If we hit this abort, it's likely due to subsegs_finish not
601
           providing sufficient alignment on the last frag, and the
602
           machine dependent code using alignment frags with fr_var
603
           greater than 1.  */
604
        abort ();
605
    }
606
 
607
#ifdef tc_frob_section
608
  tc_frob_section (sec);
609
#endif
610
#ifdef obj_frob_section
611
  obj_frob_section (sec);
612
#endif
613
}
614
 
615
#ifdef DEBUG2
616
static void
617
dump_section_relocs (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, FILE *stream)
618
{
619
  segment_info_type *seginfo = seg_info (sec);
620
  fixS *fixp = seginfo->fix_root;
621
 
622
  if (!fixp)
623
    return;
624
 
625
  fprintf (stream, "sec %s relocs:\n", sec->name);
626
  while (fixp)
627
    {
628
      symbolS *s = fixp->fx_addsy;
629
 
630
      fprintf (stream, "  %08lx: type %d ", (unsigned long) fixp,
631
               (int) fixp->fx_r_type);
632
      if (s == NULL)
633
        fprintf (stream, "no sym\n");
634
      else
635
        {
636
          print_symbol_value_1 (stream, s);
637
          fprintf (stream, "\n");
638
        }
639
      fixp = fixp->fx_next;
640
    }
641
}
642
#else
643
#define dump_section_relocs(ABFD,SEC,STREAM)    ((void) 0)
644
#endif
645
 
646
#ifndef EMIT_SECTION_SYMBOLS
647
#define EMIT_SECTION_SYMBOLS 1
648
#endif
649
 
650
/* Resolve U.A.OFFSET_SYM and U.A.SYM fields of RELOC_LIST entries,
651
   and check for validity.  Convert RELOC_LIST from using U.A fields
652
   to U.B fields.  */
653
static void
654
resolve_reloc_expr_symbols (void)
655
{
656
  struct reloc_list *r;
657
 
658
  for (r = reloc_list; r; r = r->next)
659
    {
660
      expressionS *symval;
661
      symbolS *sym;
662
      bfd_vma offset, addend;
663
      asection *sec;
664
      reloc_howto_type *howto;
665
 
666
      resolve_symbol_value (r->u.a.offset_sym);
667
      symval = symbol_get_value_expression (r->u.a.offset_sym);
668
 
669
      offset = 0;
670
      sym = NULL;
671
      if (symval->X_op == O_constant)
672
        sym = r->u.a.offset_sym;
673
      else if (symval->X_op == O_symbol)
674
        {
675
          sym = symval->X_add_symbol;
676
          offset = symval->X_add_number;
677
          symval = symbol_get_value_expression (symval->X_add_symbol);
678
        }
679
      if (sym == NULL
680
          || symval->X_op != O_constant
681
          || (sec = S_GET_SEGMENT (sym)) == NULL
682
          || !SEG_NORMAL (sec))
683
        {
684
          as_bad_where (r->file, r->line, _("invalid offset expression"));
685
          sec = NULL;
686
        }
687
      else
688
        offset += S_GET_VALUE (sym);
689
 
690
      sym = NULL;
691
      addend = r->u.a.addend;
692
      if (r->u.a.sym != NULL)
693
        {
694
          resolve_symbol_value (r->u.a.sym);
695
          symval = symbol_get_value_expression (r->u.a.sym);
696
          if (symval->X_op == O_constant)
697
            sym = r->u.a.sym;
698
          else if (symval->X_op == O_symbol)
699
            {
700
              sym = symval->X_add_symbol;
701
              addend += symval->X_add_number;
702
              symval = symbol_get_value_expression (symval->X_add_symbol);
703
            }
704
          if (symval->X_op != O_constant)
705
            {
706
              as_bad_where (r->file, r->line, _("invalid reloc expression"));
707
              sec = NULL;
708
            }
709
          else if (sym != NULL)
710
            symbol_mark_used_in_reloc (sym);
711
        }
712
      if (sym == NULL)
713
        {
714
          if (abs_section_sym == NULL)
715
            abs_section_sym = section_symbol (absolute_section);
716
          sym = abs_section_sym;
717
        }
718
 
719
      howto = r->u.a.howto;
720
 
721
      r->u.b.sec = sec;
722
      r->u.b.s = symbol_get_bfdsym (sym);
723
      r->u.b.r.sym_ptr_ptr = &r->u.b.s;
724
      r->u.b.r.address = offset;
725
      r->u.b.r.addend = addend;
726
      r->u.b.r.howto = howto;
727
    }
728
}
729
 
730
/* This pass over fixups decides whether symbols can be replaced with
731
   section symbols.  */
732
 
733
static void
734
adjust_reloc_syms (bfd *abfd ATTRIBUTE_UNUSED,
735
                   asection *sec,
736
                   void *xxx ATTRIBUTE_UNUSED)
737
{
738
  segment_info_type *seginfo = seg_info (sec);
739
  fixS *fixp;
740
 
741
  if (seginfo == NULL)
742
    return;
743
 
744
  dump_section_relocs (abfd, sec, stderr);
745
 
746
  for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next)
747
    if (fixp->fx_done)
748
      /* Ignore it.  */
749
      ;
750
    else if (fixp->fx_addsy)
751
      {
752
        symbolS *sym;
753
        asection *symsec;
754
 
755
#ifdef DEBUG5
756
        fprintf (stderr, "\n\nadjusting fixup:\n");
757
        print_fixup (fixp);
758
#endif
759
 
760
        sym = fixp->fx_addsy;
761
 
762
        /* All symbols should have already been resolved at this
763
           point.  It is possible to see unresolved expression
764
           symbols, though, since they are not in the regular symbol
765
           table.  */
766
        resolve_symbol_value (sym);
767
 
768
        if (fixp->fx_subsy != NULL)
769
          resolve_symbol_value (fixp->fx_subsy);
770
 
771
        /* If this symbol is equated to an undefined or common symbol,
772
           convert the fixup to being against that symbol.  */
773
        while (symbol_equated_reloc_p (sym)
774
               || S_IS_WEAKREFR (sym))
775
          {
776
            symbolS *newsym = symbol_get_value_expression (sym)->X_add_symbol;
777
            if (sym == newsym)
778
              break;
779
            fixp->fx_offset += symbol_get_value_expression (sym)->X_add_number;
780
            fixp->fx_addsy = newsym;
781
            sym = newsym;
782
          }
783
 
784
        if (symbol_mri_common_p (sym))
785
          {
786
            fixp->fx_offset += S_GET_VALUE (sym);
787
            fixp->fx_addsy = symbol_get_value_expression (sym)->X_add_symbol;
788
            continue;
789
          }
790
 
791
        /* If the symbol is undefined, common, weak, or global (ELF
792
           shared libs), we can't replace it with the section symbol.  */
793
        if (S_FORCE_RELOC (fixp->fx_addsy, 1))
794
          continue;
795
 
796
        /* Is there some other (target cpu dependent) reason we can't adjust
797
           this one?  (E.g. relocations involving function addresses on
798
           the PA.  */
799
#ifdef tc_fix_adjustable
800
        if (! tc_fix_adjustable (fixp))
801
          continue;
802
#endif
803
 
804
        /* Since we're reducing to section symbols, don't attempt to reduce
805
           anything that's already using one.  */
806
        if (symbol_section_p (sym))
807
          continue;
808
 
809
        symsec = S_GET_SEGMENT (sym);
810
        if (symsec == NULL)
811
          abort ();
812
 
813
        if (bfd_is_abs_section (symsec))
814
          {
815
            /* The fixup_segment routine normally will not use this
816
               symbol in a relocation.  */
817
            continue;
818
          }
819
 
820
        /* Don't try to reduce relocs which refer to non-local symbols
821
           in .linkonce sections.  It can lead to confusion when a
822
           debugging section refers to a .linkonce section.  I hope
823
           this will always be correct.  */
824
        if (symsec != sec && ! S_IS_LOCAL (sym))
825
          {
826
            if ((symsec->flags & SEC_LINK_ONCE) != 0
827
                || (IS_ELF
828
                    /* The GNU toolchain uses an extension for ELF: a
829
                       section beginning with the magic string
830
                       .gnu.linkonce is a linkonce section.  */
831
                    && strncmp (segment_name (symsec), ".gnu.linkonce",
832
                                sizeof ".gnu.linkonce" - 1) == 0))
833
              continue;
834
          }
835
 
836
        /* Never adjust a reloc against local symbol in a merge section
837
           with non-zero addend.  */
838
        if ((symsec->flags & SEC_MERGE) != 0
839
            && (fixp->fx_offset != 0 || fixp->fx_subsy != NULL))
840
          continue;
841
 
842
        /* Never adjust a reloc against TLS local symbol.  */
843
        if ((symsec->flags & SEC_THREAD_LOCAL) != 0)
844
          continue;
845
 
846
        /* We refetch the segment when calling section_symbol, rather
847
           than using symsec, because S_GET_VALUE may wind up changing
848
           the section when it calls resolve_symbol_value.  */
849
        fixp->fx_offset += S_GET_VALUE (sym);
850
        fixp->fx_addsy = section_symbol (S_GET_SEGMENT (sym));
851
#ifdef DEBUG5
852
        fprintf (stderr, "\nadjusted fixup:\n");
853
        print_fixup (fixp);
854
#endif
855
      }
856
 
857
  dump_section_relocs (abfd, sec, stderr);
858
}
859
 
860
/* fixup_segment()
861
 
862
   Go through all the fixS's in a segment and see which ones can be
863
   handled now.  (These consist of fixS where we have since discovered
864
   the value of a symbol, or the address of the frag involved.)
865
   For each one, call md_apply_fix to put the fix into the frag data.
866
 
867
   Result is a count of how many relocation structs will be needed to
868
   handle the remaining fixS's that we couldn't completely handle here.
869
   These will be output later by emit_relocations().  */
870
 
871
static long
872
fixup_segment (fixS *fixP, segT this_segment)
873
{
874
  long seg_reloc_count = 0;
875
  valueT add_number;
876
  fragS *fragP;
877
  segT add_symbol_segment = absolute_section;
878
 
879
  if (fixP != NULL && abs_section_sym == NULL)
880
    abs_section_sym = section_symbol (absolute_section);
881
 
882
  /* If the linker is doing the relaxing, we must not do any fixups.
883
 
884
     Well, strictly speaking that's not true -- we could do any that
885
     are PC-relative and don't cross regions that could change size.
886
     And for the i960 we might be able to turn callx/callj into bal
887
     anyways in cases where we know the maximum displacement.  */
888
  if (linkrelax && TC_LINKRELAX_FIXUP (this_segment))
889
    {
890
      for (; fixP; fixP = fixP->fx_next)
891
        if (!fixP->fx_done)
892
          {
893
            if (fixP->fx_addsy == NULL)
894
              {
895
                /* There was no symbol required by this relocation.
896
                   However, BFD doesn't really handle relocations
897
                   without symbols well. So fake up a local symbol in
898
                   the absolute section.  */
899
                fixP->fx_addsy = abs_section_sym;
900
              }
901
            symbol_mark_used_in_reloc (fixP->fx_addsy);
902
            if (fixP->fx_subsy != NULL)
903
              symbol_mark_used_in_reloc (fixP->fx_subsy);
904
            seg_reloc_count++;
905
          }
906
      TC_ADJUST_RELOC_COUNT (fixP, seg_reloc_count);
907
      return seg_reloc_count;
908
    }
909
 
910
  for (; fixP; fixP = fixP->fx_next)
911
    {
912
#ifdef DEBUG5
913
      fprintf (stderr, "\nprocessing fixup:\n");
914
      print_fixup (fixP);
915
#endif
916
 
917
      fragP = fixP->fx_frag;
918
      know (fragP);
919
#ifdef TC_VALIDATE_FIX
920
      TC_VALIDATE_FIX (fixP, this_segment, skip);
921
#endif
922
      add_number = fixP->fx_offset;
923
 
924
      if (fixP->fx_addsy != NULL)
925
        add_symbol_segment = S_GET_SEGMENT (fixP->fx_addsy);
926
 
927
      if (fixP->fx_subsy != NULL)
928
        {
929
          segT sub_symbol_segment;
930
          resolve_symbol_value (fixP->fx_subsy);
931
          sub_symbol_segment = S_GET_SEGMENT (fixP->fx_subsy);
932
          if (fixP->fx_addsy != NULL
933
              && sub_symbol_segment == add_symbol_segment
934
              && !TC_FORCE_RELOCATION_SUB_SAME (fixP, add_symbol_segment))
935
            {
936
              add_number += S_GET_VALUE (fixP->fx_addsy);
937
              add_number -= S_GET_VALUE (fixP->fx_subsy);
938
              fixP->fx_offset = add_number;
939
              fixP->fx_addsy = NULL;
940
              fixP->fx_subsy = NULL;
941
#ifdef TC_M68K
942
              /* See the comment below about 68k weirdness.  */
943
              fixP->fx_pcrel = 0;
944
#endif
945
            }
946
          else if (sub_symbol_segment == absolute_section
947
                   && !TC_FORCE_RELOCATION_SUB_ABS (fixP, add_symbol_segment))
948
            {
949
              add_number -= S_GET_VALUE (fixP->fx_subsy);
950
              fixP->fx_offset = add_number;
951
              fixP->fx_subsy = NULL;
952
            }
953
          else if (sub_symbol_segment == this_segment
954
                   && !TC_FORCE_RELOCATION_SUB_LOCAL (fixP, add_symbol_segment))
955
            {
956
              add_number -= S_GET_VALUE (fixP->fx_subsy);
957
              fixP->fx_offset = (add_number + fixP->fx_dot_value
958
                                 + fixP->fx_frag->fr_address);
959
 
960
              /* Make it pc-relative.  If the back-end code has not
961
                 selected a pc-relative reloc, cancel the adjustment
962
                 we do later on all pc-relative relocs.  */
963
              if (0
964
#ifdef TC_M68K
965
                  /* Do this for m68k even if it's already described
966
                     as pc-relative.  On the m68k, an operand of
967
                     "pc@(foo-.-2)" should address "foo" in a
968
                     pc-relative mode.  */
969
                  || 1
970
#endif
971
                  || !fixP->fx_pcrel)
972
                add_number += MD_PCREL_FROM_SECTION (fixP, this_segment);
973
              fixP->fx_subsy = NULL;
974
              fixP->fx_pcrel = 1;
975
            }
976
          else if (!TC_VALIDATE_FIX_SUB (fixP, add_symbol_segment))
977
            {
978
              if (!md_register_arithmetic
979
                  && (add_symbol_segment == reg_section
980
                      || sub_symbol_segment == reg_section))
981
                as_bad_where (fixP->fx_file, fixP->fx_line,
982
                              _("register value used as expression"));
983
              else
984
                as_bad_where (fixP->fx_file, fixP->fx_line,
985
                              _("can't resolve `%s' {%s section} - `%s' {%s section}"),
986
                              fixP->fx_addsy ? S_GET_NAME (fixP->fx_addsy) : "0",
987
                              segment_name (add_symbol_segment),
988
                              S_GET_NAME (fixP->fx_subsy),
989
                              segment_name (sub_symbol_segment));
990
            }
991
        }
992
 
993
      if (fixP->fx_addsy)
994
        {
995
          if (add_symbol_segment == this_segment
996
              && !TC_FORCE_RELOCATION_LOCAL (fixP))
997
            {
998
              /* This fixup was made when the symbol's segment was
999
                 SEG_UNKNOWN, but it is now in the local segment.
1000
                 So we know how to do the address without relocation.  */
1001
              add_number += S_GET_VALUE (fixP->fx_addsy);
1002
              fixP->fx_offset = add_number;
1003
              if (fixP->fx_pcrel)
1004
                add_number -= MD_PCREL_FROM_SECTION (fixP, this_segment);
1005
              fixP->fx_addsy = NULL;
1006
              fixP->fx_pcrel = 0;
1007
            }
1008
          else if (add_symbol_segment == absolute_section
1009
                   && !TC_FORCE_RELOCATION_ABS (fixP))
1010
            {
1011
              add_number += S_GET_VALUE (fixP->fx_addsy);
1012
              fixP->fx_offset = add_number;
1013
              fixP->fx_addsy = NULL;
1014
            }
1015
          else if (add_symbol_segment != undefined_section
1016
                   && ! bfd_is_com_section (add_symbol_segment)
1017
                   && MD_APPLY_SYM_VALUE (fixP))
1018
            add_number += S_GET_VALUE (fixP->fx_addsy);
1019
        }
1020
 
1021
      if (fixP->fx_pcrel)
1022
        {
1023
          add_number -= MD_PCREL_FROM_SECTION (fixP, this_segment);
1024
          if (!fixP->fx_done && fixP->fx_addsy == NULL)
1025
            {
1026
              /* There was no symbol required by this relocation.
1027
                 However, BFD doesn't really handle relocations
1028
                 without symbols well. So fake up a local symbol in
1029
                 the absolute section.  */
1030
              fixP->fx_addsy = abs_section_sym;
1031
            }
1032
        }
1033
 
1034
      if (!fixP->fx_done)
1035
        md_apply_fix (fixP, &add_number, this_segment);
1036
 
1037
      if (!fixP->fx_done)
1038
        {
1039
          ++seg_reloc_count;
1040
          if (fixP->fx_addsy == NULL)
1041
            fixP->fx_addsy = abs_section_sym;
1042
          symbol_mark_used_in_reloc (fixP->fx_addsy);
1043
          if (fixP->fx_subsy != NULL)
1044
            symbol_mark_used_in_reloc (fixP->fx_subsy);
1045
        }
1046
 
1047
      if (!fixP->fx_bit_fixP && !fixP->fx_no_overflow && fixP->fx_size != 0)
1048
        {
1049
          if (fixP->fx_size < sizeof (valueT))
1050
            {
1051
              valueT mask;
1052
 
1053
              mask = 0;
1054
              mask--;           /* Set all bits to one.  */
1055
              mask <<= fixP->fx_size * 8 - (fixP->fx_signed ? 1 : 0);
1056
              if ((add_number & mask) != 0 && (add_number & mask) != mask)
1057
                {
1058
                  char buf[50], buf2[50];
1059
                  sprint_value (buf, fragP->fr_address + fixP->fx_where);
1060
                  if (add_number > 1000)
1061
                    sprint_value (buf2, add_number);
1062
                  else
1063
                    sprintf (buf2, "%ld", (long) add_number);
1064
                  as_bad_where (fixP->fx_file, fixP->fx_line,
1065
                                _("value of %s too large for field of %d bytes at %s"),
1066
                                buf2, fixP->fx_size, buf);
1067
                } /* Generic error checking.  */
1068
            }
1069
#ifdef WARN_SIGNED_OVERFLOW_WORD
1070
          /* Warn if a .word value is too large when treated as a signed
1071
             number.  We already know it is not too negative.  This is to
1072
             catch over-large switches generated by gcc on the 68k.  */
1073
          if (!flag_signed_overflow_ok
1074
              && fixP->fx_size == 2
1075
              && add_number > 0x7fff)
1076
            as_bad_where (fixP->fx_file, fixP->fx_line,
1077
                          _("signed .word overflow; switch may be too large; %ld at 0x%lx"),
1078
                          (long) add_number,
1079
                          (long) (fragP->fr_address + fixP->fx_where));
1080
#endif
1081
        }                       /* Not a bit fix.  */
1082
 
1083
#ifdef TC_VALIDATE_FIX
1084
    skip:  ATTRIBUTE_UNUSED_LABEL
1085
      ;
1086
#endif
1087
#ifdef DEBUG5
1088
      fprintf (stderr, "result:\n");
1089
      print_fixup (fixP);
1090
#endif
1091
    }                           /* For each fixS in this segment.  */
1092
 
1093
  TC_ADJUST_RELOC_COUNT (fixP, seg_reloc_count);
1094
  return seg_reloc_count;
1095
}
1096
 
1097
static void
1098
fix_segment (bfd *abfd ATTRIBUTE_UNUSED,
1099
             asection *sec,
1100
             void *xxx ATTRIBUTE_UNUSED)
1101
{
1102
  segment_info_type *seginfo = seg_info (sec);
1103
 
1104
  fixup_segment (seginfo->fix_root, sec);
1105
}
1106
 
1107
static void
1108
install_reloc (asection *sec, arelent *reloc, fragS *fragp,
1109
               char *file, unsigned int line)
1110
{
1111
  char *err;
1112
  bfd_reloc_status_type s;
1113
  asymbol *sym;
1114
 
1115
  if (reloc->sym_ptr_ptr != NULL
1116
      && (sym = *reloc->sym_ptr_ptr) != NULL
1117
      && (sym->flags & BSF_KEEP) == 0
1118
      && ((sym->flags & BSF_SECTION_SYM) == 0
1119
          || (EMIT_SECTION_SYMBOLS
1120
              && !bfd_is_abs_section (sym->section))))
1121
    as_bad_where (file, line, _("redefined symbol cannot be used on reloc"));
1122
 
1123
  s = bfd_install_relocation (stdoutput, reloc,
1124
                              fragp->fr_literal, fragp->fr_address,
1125
                              sec, &err);
1126
  switch (s)
1127
    {
1128
    case bfd_reloc_ok:
1129
      break;
1130
    case bfd_reloc_overflow:
1131
      as_bad_where (file, line, _("relocation overflow"));
1132
      break;
1133
    case bfd_reloc_outofrange:
1134
      as_bad_where (file, line, _("relocation out of range"));
1135
      break;
1136
    default:
1137
      as_fatal (_("%s:%u: bad return from bfd_install_relocation: %x"),
1138
                file, line, s);
1139
    }
1140
}
1141
 
1142
static void
1143
write_relocs (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED)
1144
{
1145
  segment_info_type *seginfo = seg_info (sec);
1146
  unsigned int i;
1147
  unsigned int n;
1148
  struct reloc_list *my_reloc_list, **rp, *r;
1149
  arelent **relocs;
1150
  fixS *fixp;
1151
 
1152
  /* If seginfo is NULL, we did not create this section; don't do
1153
     anything with it.  */
1154
  if (seginfo == NULL)
1155
    return;
1156
 
1157
  n = 0;
1158
  for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next)
1159
    if (!fixp->fx_done)
1160
      n++;
1161
 
1162
#ifdef RELOC_EXPANSION_POSSIBLE
1163
  n *= MAX_RELOC_EXPANSION;
1164
#endif
1165
 
1166
  /* Extract relocs for this section from reloc_list.  */
1167
  rp = &reloc_list;
1168
  my_reloc_list = NULL;
1169
  while ((r = *rp) != NULL)
1170
    {
1171
      if (r->u.b.sec == sec)
1172
        {
1173
          *rp = r->next;
1174
          r->next = my_reloc_list;
1175
          my_reloc_list = r;
1176
          n++;
1177
        }
1178
      else
1179
        rp = &r->next;
1180
    }
1181
 
1182
  relocs = (arelent **) xcalloc (n, sizeof (arelent *));
1183
 
1184
  i = 0;
1185
  for (fixp = seginfo->fix_root; fixp != (fixS *) NULL; fixp = fixp->fx_next)
1186
    {
1187
      int j;
1188
      int fx_size, slack;
1189
      offsetT loc;
1190
 
1191
      if (fixp->fx_done)
1192
        continue;
1193
 
1194
      fx_size = fixp->fx_size;
1195
      slack = TC_FX_SIZE_SLACK (fixp);
1196
      if (slack > 0)
1197
        fx_size = fx_size > slack ? fx_size - slack : 0;
1198
      loc = fixp->fx_where + fx_size;
1199
      if (slack >= 0 && loc > fixp->fx_frag->fr_fix)
1200
        as_bad_where (fixp->fx_file, fixp->fx_line,
1201
                      _("internal error: fixup not contained within frag"));
1202
 
1203
#ifndef RELOC_EXPANSION_POSSIBLE
1204
      {
1205
        arelent *reloc = tc_gen_reloc (sec, fixp);
1206
 
1207
        if (!reloc)
1208
          continue;
1209
        relocs[i++] = reloc;
1210
        j = 1;
1211
      }
1212
#else
1213
      {
1214
        arelent **reloc = tc_gen_reloc (sec, fixp);
1215
 
1216
        for (j = 0; reloc[j]; j++)
1217
          relocs[i++] = reloc[j];
1218
      }
1219
#endif
1220
 
1221
      for ( ; j != 0; --j)
1222
        install_reloc (sec, relocs[i - j], fixp->fx_frag,
1223
                       fixp->fx_file, fixp->fx_line);
1224
    }
1225
  n = i;
1226
 
1227
#ifdef DEBUG4
1228
  {
1229
    unsigned int i, j, nsyms;
1230
    asymbol **sympp;
1231
    sympp = bfd_get_outsymbols (stdoutput);
1232
    nsyms = bfd_get_symcount (stdoutput);
1233
    for (i = 0; i < n; i++)
1234
      if (((*relocs[i]->sym_ptr_ptr)->flags & BSF_SECTION_SYM) == 0)
1235
        {
1236
          for (j = 0; j < nsyms; j++)
1237
            if (sympp[j] == *relocs[i]->sym_ptr_ptr)
1238
              break;
1239
          if (j == nsyms)
1240
            abort ();
1241
        }
1242
  }
1243
#endif
1244
 
1245
  for (r = my_reloc_list; r != NULL; r = r->next)
1246
    {
1247
      fragS *f;
1248
      for (f = seginfo->frchainP->frch_root; f; f = f->fr_next)
1249
        if (f->fr_address <= r->u.b.r.address
1250
            && r->u.b.r.address < f->fr_address + f->fr_fix)
1251
          break;
1252
      if (f == NULL)
1253
        as_bad_where (r->file, r->line,
1254
                      _("reloc not within (fixed part of) section"));
1255
      else
1256
        {
1257
          relocs[n++] = &r->u.b.r;
1258
          install_reloc (sec, &r->u.b.r, f, r->file, r->line);
1259
        }
1260
    }
1261
 
1262
  if (n)
1263
    {
1264
      flagword flags = bfd_get_section_flags (abfd, sec);
1265
      flags |= SEC_RELOC;
1266
      bfd_set_section_flags (abfd, sec, flags);
1267
      bfd_set_reloc (stdoutput, sec, relocs, n);
1268
    }
1269
 
1270
#ifdef SET_SECTION_RELOCS
1271
  SET_SECTION_RELOCS (sec, relocs, n);
1272
#endif
1273
 
1274
#ifdef DEBUG3
1275
  {
1276
    unsigned int i;
1277
    arelent *r;
1278
    asymbol *s;
1279
    fprintf (stderr, "relocs for sec %s\n", sec->name);
1280
    for (i = 0; i < n; i++)
1281
      {
1282
        r = relocs[i];
1283
        s = *r->sym_ptr_ptr;
1284
        fprintf (stderr, "  reloc %2d @%p off %4lx : sym %-10s addend %lx\n",
1285
                 i, r, (unsigned long)r->address, s->name, (unsigned long)r->addend);
1286
      }
1287
  }
1288
#endif
1289
}
1290
 
1291
static void
1292
write_contents (bfd *abfd ATTRIBUTE_UNUSED,
1293
                asection *sec,
1294
                void *xxx ATTRIBUTE_UNUSED)
1295
{
1296
  segment_info_type *seginfo = seg_info (sec);
1297
  addressT offset = 0;
1298
  fragS *f;
1299
 
1300
  /* Write out the frags.  */
1301
  if (seginfo == NULL
1302
      || !(bfd_get_section_flags (abfd, sec) & SEC_HAS_CONTENTS))
1303
    return;
1304
 
1305
  for (f = seginfo->frchainP->frch_root;
1306
       f;
1307
       f = f->fr_next)
1308
    {
1309
      int x;
1310
      addressT fill_size;
1311
      char *fill_literal;
1312
      offsetT count;
1313
 
1314
      gas_assert (f->fr_type == rs_fill);
1315
      if (f->fr_fix)
1316
        {
1317
          x = bfd_set_section_contents (stdoutput, sec,
1318
                                        f->fr_literal, (file_ptr) offset,
1319
                                        (bfd_size_type) f->fr_fix);
1320
          if (!x)
1321
            as_fatal (_("can't write %s: %s"), stdoutput->filename,
1322
                      bfd_errmsg (bfd_get_error ()));
1323
          offset += f->fr_fix;
1324
        }
1325
      fill_literal = f->fr_literal + f->fr_fix;
1326
      fill_size = f->fr_var;
1327
      count = f->fr_offset;
1328
      gas_assert (count >= 0);
1329
      if (fill_size && count)
1330
        {
1331
          char buf[256];
1332
          if (fill_size > sizeof (buf))
1333
            {
1334
              /* Do it the old way. Can this ever happen?  */
1335
              while (count--)
1336
                {
1337
                  x = bfd_set_section_contents (stdoutput, sec,
1338
                                                fill_literal,
1339
                                                (file_ptr) offset,
1340
                                                (bfd_size_type) fill_size);
1341
                  if (!x)
1342
                    as_fatal (_("can't write %s: %s"), stdoutput->filename,
1343
                              bfd_errmsg (bfd_get_error ()));
1344
                  offset += fill_size;
1345
                }
1346
            }
1347
          else
1348
            {
1349
              /* Build a buffer full of fill objects and output it as
1350
                 often as necessary. This saves on the overhead of
1351
                 potentially lots of bfd_set_section_contents calls.  */
1352
              int n_per_buf, i;
1353
              if (fill_size == 1)
1354
                {
1355
                  n_per_buf = sizeof (buf);
1356
                  memset (buf, *fill_literal, n_per_buf);
1357
                }
1358
              else
1359
                {
1360
                  char *bufp;
1361
                  n_per_buf = sizeof (buf) / fill_size;
1362
                  for (i = n_per_buf, bufp = buf; i; i--, bufp += fill_size)
1363
                    memcpy (bufp, fill_literal, fill_size);
1364
                }
1365
              for (; count > 0; count -= n_per_buf)
1366
                {
1367
                  n_per_buf = n_per_buf > count ? count : n_per_buf;
1368
                  x = bfd_set_section_contents
1369
                    (stdoutput, sec, buf, (file_ptr) offset,
1370
                     (bfd_size_type) n_per_buf * fill_size);
1371
                  if (!x)
1372
                    as_fatal (_("cannot write to output file"));
1373
                  offset += n_per_buf * fill_size;
1374
                }
1375
            }
1376
        }
1377
    }
1378
}
1379
 
1380
static void
1381
merge_data_into_text (void)
1382
{
1383
  seg_info (text_section)->frchainP->frch_last->fr_next =
1384
    seg_info (data_section)->frchainP->frch_root;
1385
  seg_info (text_section)->frchainP->frch_last =
1386
    seg_info (data_section)->frchainP->frch_last;
1387
  seg_info (data_section)->frchainP = 0;
1388
}
1389
 
1390
static void
1391
set_symtab (void)
1392
{
1393
  int nsyms;
1394
  asymbol **asympp;
1395
  symbolS *symp;
1396
  bfd_boolean result;
1397
 
1398
  /* Count symbols.  We can't rely on a count made by the loop in
1399
     write_object_file, because *_frob_file may add a new symbol or
1400
     two.  */
1401
  nsyms = 0;
1402
  for (symp = symbol_rootP; symp; symp = symbol_next (symp))
1403
    nsyms++;
1404
 
1405
  if (nsyms)
1406
    {
1407
      int i;
1408
      bfd_size_type amt = (bfd_size_type) nsyms * sizeof (asymbol *);
1409
 
1410
      asympp = (asymbol **) bfd_alloc (stdoutput, amt);
1411
      symp = symbol_rootP;
1412
      for (i = 0; i < nsyms; i++, symp = symbol_next (symp))
1413
        {
1414
          asympp[i] = symbol_get_bfdsym (symp);
1415
          if (asympp[i]->flags != BSF_SECTION_SYM
1416
              || !(bfd_is_const_section (asympp[i]->section)
1417
                   && asympp[i]->section->symbol == asympp[i]))
1418
            asympp[i]->flags |= BSF_KEEP;
1419
          symbol_mark_written (symp);
1420
        }
1421
    }
1422
  else
1423
    asympp = 0;
1424
  result = bfd_set_symtab (stdoutput, asympp, nsyms);
1425
  gas_assert (result);
1426
  symbol_table_frozen = 1;
1427
}
1428
 
1429
/* Finish the subsegments.  After every sub-segment, we fake an
1430
   ".align ...".  This conforms to BSD4.2 brane-damage.  We then fake
1431
   ".fill 0" because that is the kind of frag that requires least
1432
   thought.  ".align" frags like to have a following frag since that
1433
   makes calculating their intended length trivial.  */
1434
 
1435
#ifndef SUB_SEGMENT_ALIGN
1436
#ifdef HANDLE_ALIGN
1437
/* The last subsegment gets an alignment corresponding to the alignment
1438
   of the section.  This allows proper nop-filling at the end of
1439
   code-bearing sections.  */
1440
#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN)                                 \
1441
  (!(FRCHAIN)->frch_next ? get_recorded_alignment (SEG) : 0)
1442
#else
1443
#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
1444
#endif
1445
#endif
1446
 
1447
void
1448
subsegs_finish (void)
1449
{
1450
  struct frchain *frchainP;
1451
  asection *s;
1452
 
1453
  for (s = stdoutput->sections; s; s = s->next)
1454
    {
1455
      segment_info_type *seginfo = seg_info (s);
1456
      if (!seginfo)
1457
        continue;
1458
 
1459
      for (frchainP = seginfo->frchainP;
1460
           frchainP != NULL;
1461
           frchainP = frchainP->frch_next)
1462
        {
1463
          int alignment = 0;
1464
 
1465
          subseg_set (s, frchainP->frch_subseg);
1466
 
1467
          /* This now gets called even if we had errors.  In that case,
1468
             any alignment is meaningless, and, moreover, will look weird
1469
             if we are generating a listing.  */
1470
          if (!had_errors ())
1471
            {
1472
              alignment = SUB_SEGMENT_ALIGN (now_seg, frchainP);
1473
              if ((bfd_get_section_flags (now_seg->owner, now_seg) & SEC_MERGE)
1474
                  && now_seg->entsize)
1475
                {
1476
                  unsigned int entsize = now_seg->entsize;
1477
                  int entalign = 0;
1478
 
1479
                  while ((entsize & 1) == 0)
1480
                    {
1481
                      ++entalign;
1482
                      entsize >>= 1;
1483
                    }
1484
                  if (entalign > alignment)
1485
                    alignment = entalign;
1486
                }
1487
            }
1488
 
1489
          if (subseg_text_p (now_seg))
1490
            frag_align_code (alignment, 0);
1491
          else
1492
            frag_align (alignment, 0, 0);
1493
 
1494
          /* frag_align will have left a new frag.
1495
             Use this last frag for an empty ".fill".
1496
 
1497
             For this segment ...
1498
             Create a last frag. Do not leave a "being filled in frag".  */
1499
          frag_wane (frag_now);
1500
          frag_now->fr_fix = 0;
1501
          know (frag_now->fr_next == NULL);
1502
        }
1503
    }
1504
}
1505
 
1506
/* Write the object file.  */
1507
 
1508
void
1509
write_object_file (void)
1510
{
1511
  struct relax_seg_info rsi;
1512
#ifndef WORKING_DOT_WORD
1513
  fragS *fragP;                 /* Track along all frags.  */
1514
#endif
1515
 
1516
  /* Do we really want to write it?  */
1517
  {
1518
    int n_warns, n_errs;
1519
    n_warns = had_warnings ();
1520
    n_errs = had_errors ();
1521
    /* The -Z flag indicates that an object file should be generated,
1522
       regardless of warnings and errors.  */
1523
    if (flag_always_generate_output)
1524
      {
1525
        if (n_warns || n_errs)
1526
          as_warn (_("%d error%s, %d warning%s, generating bad object file"),
1527
                   n_errs, n_errs == 1 ? "" : "s",
1528
                   n_warns, n_warns == 1 ? "" : "s");
1529
      }
1530
    else
1531
      {
1532
        if (n_errs)
1533
          as_fatal (_("%d error%s, %d warning%s, no object file generated"),
1534
                    n_errs, n_errs == 1 ? "" : "s",
1535
                    n_warns, n_warns == 1 ? "" : "s");
1536
      }
1537
  }
1538
 
1539
#ifdef  OBJ_VMS
1540
  /* Under VMS we try to be compatible with VAX-11 "C".  Thus, we call
1541
     a routine to check for the definition of the procedure "_main",
1542
     and if so -- fix it up so that it can be program entry point.  */
1543
  vms_check_for_main ();
1544
#endif /* OBJ_VMS  */
1545
 
1546
  /* From now on, we don't care about sub-segments.  Build one frag chain
1547
     for each segment. Linked thru fr_next.  */
1548
 
1549
  /* Remove the sections created by gas for its own purposes.  */
1550
  {
1551
    int i;
1552
 
1553
    bfd_section_list_remove (stdoutput, reg_section);
1554
    bfd_section_list_remove (stdoutput, expr_section);
1555
    stdoutput->section_count -= 2;
1556
    i = 0;
1557
    bfd_map_over_sections (stdoutput, renumber_sections, &i);
1558
  }
1559
 
1560
  bfd_map_over_sections (stdoutput, chain_frchains_together, (char *) 0);
1561
 
1562
  /* We have two segments. If user gave -R flag, then we must put the
1563
     data frags into the text segment. Do this before relaxing so
1564
     we know to take advantage of -R and make shorter addresses.  */
1565
  if (flag_readonly_data_in_text)
1566
    {
1567
      merge_data_into_text ();
1568
    }
1569
 
1570
  rsi.pass = 0;
1571
  while (1)
1572
    {
1573
#ifndef WORKING_DOT_WORD
1574
      /* We need to reset the markers in the broken word list and
1575
         associated frags between calls to relax_segment (via
1576
         relax_seg).  Since the broken word list is global, we do it
1577
         once per round, rather than locally in relax_segment for each
1578
         segment.  */
1579
      struct broken_word *brokp;
1580
 
1581
      for (brokp = broken_words;
1582
           brokp != (struct broken_word *) NULL;
1583
           brokp = brokp->next_broken_word)
1584
        {
1585
          brokp->added = 0;
1586
 
1587
          if (brokp->dispfrag != (fragS *) NULL
1588
              && brokp->dispfrag->fr_type == rs_broken_word)
1589
            brokp->dispfrag->fr_subtype = 0;
1590
        }
1591
#endif
1592
 
1593
      rsi.changed = 0;
1594
      bfd_map_over_sections (stdoutput, relax_seg, &rsi);
1595
      rsi.pass++;
1596
      if (!rsi.changed)
1597
        break;
1598
    }
1599
 
1600
  /* Note - Most ports will use the default value of
1601
     TC_FINALIZE_SYMS_BEFORE_SIZE_SEG, which 1.  This will force
1602
     local symbols to be resolved, removing their frag information.
1603
     Some ports however, will not have finished relaxing all of
1604
     their frags and will still need the local symbol frag
1605
     information.  These ports can set
1606
     TC_FINALIZE_SYMS_BEFORE_SIZE_SEG to 0.  */
1607
  finalize_syms = TC_FINALIZE_SYMS_BEFORE_SIZE_SEG;
1608
 
1609
  bfd_map_over_sections (stdoutput, size_seg, (char *) 0);
1610
 
1611
  /* Relaxation has completed.  Freeze all syms.  */
1612
  finalize_syms = 1;
1613
 
1614
#ifdef md_post_relax_hook
1615
  md_post_relax_hook;
1616
#endif
1617
 
1618
#ifndef WORKING_DOT_WORD
1619
  {
1620
    struct broken_word *lie;
1621
    struct broken_word **prevP;
1622
 
1623
    prevP = &broken_words;
1624
    for (lie = broken_words; lie; lie = lie->next_broken_word)
1625
      if (!lie->added)
1626
        {
1627
          expressionS exp;
1628
 
1629
          subseg_change (lie->seg, lie->subseg);
1630
          exp.X_op = O_subtract;
1631
          exp.X_add_symbol = lie->add;
1632
          exp.X_op_symbol = lie->sub;
1633
          exp.X_add_number = lie->addnum;
1634
#ifdef TC_CONS_FIX_NEW
1635
          TC_CONS_FIX_NEW (lie->frag,
1636
                           lie->word_goes_here - lie->frag->fr_literal,
1637
                           2, &exp);
1638
#else
1639
          fix_new_exp (lie->frag,
1640
                       lie->word_goes_here - lie->frag->fr_literal,
1641
                       2, &exp, 0, BFD_RELOC_16);
1642
#endif
1643
          *prevP = lie->next_broken_word;
1644
        }
1645
      else
1646
        prevP = &(lie->next_broken_word);
1647
 
1648
    for (lie = broken_words; lie;)
1649
      {
1650
        struct broken_word *untruth;
1651
        char *table_ptr;
1652
        addressT table_addr;
1653
        addressT from_addr, to_addr;
1654
        int n, m;
1655
 
1656
        subseg_change (lie->seg, lie->subseg);
1657
        fragP = lie->dispfrag;
1658
 
1659
        /* Find out how many broken_words go here.  */
1660
        n = 0;
1661
        for (untruth = lie;
1662
             untruth && untruth->dispfrag == fragP;
1663
             untruth = untruth->next_broken_word)
1664
          if (untruth->added == 1)
1665
            n++;
1666
 
1667
        table_ptr = lie->dispfrag->fr_opcode;
1668
        table_addr = (lie->dispfrag->fr_address
1669
                      + (table_ptr - lie->dispfrag->fr_literal));
1670
        /* Create the jump around the long jumps.  This is a short
1671
           jump from table_ptr+0 to table_ptr+n*long_jump_size.  */
1672
        from_addr = table_addr;
1673
        to_addr = table_addr + md_short_jump_size + n * md_long_jump_size;
1674
        md_create_short_jump (table_ptr, from_addr, to_addr, lie->dispfrag,
1675
                              lie->add);
1676
        table_ptr += md_short_jump_size;
1677
        table_addr += md_short_jump_size;
1678
 
1679
        for (m = 0;
1680
             lie && lie->dispfrag == fragP;
1681
             m++, lie = lie->next_broken_word)
1682
          {
1683
            if (lie->added == 2)
1684
              continue;
1685
            /* Patch the jump table.  */
1686
            for (untruth = (struct broken_word *) (fragP->fr_symbol);
1687
                 untruth && untruth->dispfrag == fragP;
1688
                 untruth = untruth->next_broken_word)
1689
              {
1690
                if (untruth->use_jump == lie)
1691
                  {
1692
                    /* This is the offset from ??? to table_ptr+0.
1693
                       The target is the same for all users of this
1694
                       md_long_jump, but the "sub" bases (and hence the
1695
                       offsets) may be different.  */
1696
                    addressT to_word = table_addr - S_GET_VALUE (untruth->sub);
1697
#ifdef TC_CHECK_ADJUSTED_BROKEN_DOT_WORD
1698
                    TC_CHECK_ADJUSTED_BROKEN_DOT_WORD (to_word, untruth);
1699
#endif
1700
                    md_number_to_chars (untruth->word_goes_here, to_word, 2);
1701
                  }
1702
              }
1703
 
1704
            /* Install the long jump.  */
1705
            /* This is a long jump from table_ptr+0 to the final target.  */
1706
            from_addr = table_addr;
1707
            to_addr = S_GET_VALUE (lie->add) + lie->addnum;
1708
            md_create_long_jump (table_ptr, from_addr, to_addr, lie->dispfrag,
1709
                                 lie->add);
1710
            table_ptr += md_long_jump_size;
1711
            table_addr += md_long_jump_size;
1712
          }
1713
      }
1714
  }
1715
#endif /* not WORKING_DOT_WORD  */
1716
 
1717
  /* Resolve symbol values.  This needs to be done before processing
1718
     the relocations.  */
1719
  if (symbol_rootP)
1720
    {
1721
      symbolS *symp;
1722
 
1723
      for (symp = symbol_rootP; symp; symp = symbol_next (symp))
1724
        resolve_symbol_value (symp);
1725
    }
1726
  resolve_local_symbol_values ();
1727
  resolve_reloc_expr_symbols ();
1728
 
1729
  PROGRESS (1);
1730
 
1731
#ifdef tc_frob_file_before_adjust
1732
  tc_frob_file_before_adjust ();
1733
#endif
1734
#ifdef obj_frob_file_before_adjust
1735
  obj_frob_file_before_adjust ();
1736
#endif
1737
 
1738
  bfd_map_over_sections (stdoutput, adjust_reloc_syms, (char *) 0);
1739
 
1740
#ifdef tc_frob_file_before_fix
1741
  tc_frob_file_before_fix ();
1742
#endif
1743
#ifdef obj_frob_file_before_fix
1744
  obj_frob_file_before_fix ();
1745
#endif
1746
 
1747
  bfd_map_over_sections (stdoutput, fix_segment, (char *) 0);
1748
 
1749
  /* Set up symbol table, and write it out.  */
1750
  if (symbol_rootP)
1751
    {
1752
      symbolS *symp;
1753
      bfd_boolean skip_next_symbol = FALSE;
1754
 
1755
      for (symp = symbol_rootP; symp; symp = symbol_next (symp))
1756
        {
1757
          int punt = 0;
1758
          const char *name;
1759
 
1760
          if (skip_next_symbol)
1761
            {
1762
              /* Don't do anything besides moving the value of the
1763
                 symbol from the GAS value-field to the BFD value-field.  */
1764
              symbol_get_bfdsym (symp)->value = S_GET_VALUE (symp);
1765
              skip_next_symbol = FALSE;
1766
              continue;
1767
            }
1768
 
1769
          if (symbol_mri_common_p (symp))
1770
            {
1771
              if (S_IS_EXTERNAL (symp))
1772
                as_bad (_("%s: global symbols not supported in common sections"),
1773
                        S_GET_NAME (symp));
1774
              symbol_remove (symp, &symbol_rootP, &symbol_lastP);
1775
              continue;
1776
            }
1777
 
1778
          name = S_GET_NAME (symp);
1779
          if (name)
1780
            {
1781
              const char *name2 =
1782
                decode_local_label_name ((char *) S_GET_NAME (symp));
1783
              /* They only differ if `name' is a fb or dollar local
1784
                 label name.  */
1785
              if (name2 != name && ! S_IS_DEFINED (symp))
1786
                as_bad (_("local label `%s' is not defined"), name2);
1787
            }
1788
 
1789
          /* Do it again, because adjust_reloc_syms might introduce
1790
             more symbols.  They'll probably only be section symbols,
1791
             but they'll still need to have the values computed.  */
1792
          resolve_symbol_value (symp);
1793
 
1794
          /* Skip symbols which were equated to undefined or common
1795
             symbols.  */
1796
          if (symbol_equated_reloc_p (symp)
1797
              || S_IS_WEAKREFR (symp))
1798
            {
1799
              const char *name = S_GET_NAME (symp);
1800
              if (S_IS_COMMON (symp)
1801
                  && !TC_FAKE_LABEL (name)
1802
                  && !S_IS_WEAKREFR (symp)
1803
                  && (!S_IS_EXTERNAL (symp) || S_IS_LOCAL (symp)))
1804
                {
1805
                  expressionS *e = symbol_get_value_expression (symp);
1806
                  as_bad (_("Local symbol `%s' can't be equated to common symbol `%s'"),
1807
                          name, S_GET_NAME (e->X_add_symbol));
1808
                }
1809
              if (S_GET_SEGMENT (symp) == reg_section)
1810
                {
1811
                  /* Report error only if we know the symbol name.  */
1812
                  if (S_GET_NAME (symp) != reg_section->name)
1813
                    as_bad (_("can't make global register symbol `%s'"),
1814
                            name);
1815
                }
1816
              symbol_remove (symp, &symbol_rootP, &symbol_lastP);
1817
              continue;
1818
            }
1819
 
1820
#ifdef obj_frob_symbol
1821
          obj_frob_symbol (symp, punt);
1822
#endif
1823
#ifdef tc_frob_symbol
1824
          if (! punt || symbol_used_in_reloc_p (symp))
1825
            tc_frob_symbol (symp, punt);
1826
#endif
1827
 
1828
          /* If we don't want to keep this symbol, splice it out of
1829
             the chain now.  If EMIT_SECTION_SYMBOLS is 0, we never
1830
             want section symbols.  Otherwise, we skip local symbols
1831
             and symbols that the frob_symbol macros told us to punt,
1832
             but we keep such symbols if they are used in relocs.  */
1833
          if (symp == abs_section_sym
1834
              || (! EMIT_SECTION_SYMBOLS
1835
                  && symbol_section_p (symp))
1836
              /* Note that S_IS_EXTERNAL and S_IS_LOCAL are not always
1837
                 opposites.  Sometimes the former checks flags and the
1838
                 latter examines the name...  */
1839
              || (!S_IS_EXTERNAL (symp)
1840
                  && (punt || S_IS_LOCAL (symp) ||
1841
                      (S_IS_WEAKREFD (symp) && ! symbol_used_p (symp)))
1842
                  && ! symbol_used_in_reloc_p (symp)))
1843
            {
1844
              symbol_remove (symp, &symbol_rootP, &symbol_lastP);
1845
 
1846
              /* After symbol_remove, symbol_next(symp) still returns
1847
                 the one that came after it in the chain.  So we don't
1848
                 need to do any extra cleanup work here.  */
1849
              continue;
1850
            }
1851
 
1852
          /* Make sure we really got a value for the symbol.  */
1853
          if (! symbol_resolved_p (symp))
1854
            {
1855
              as_bad (_("can't resolve value for symbol `%s'"),
1856
                      S_GET_NAME (symp));
1857
              symbol_mark_resolved (symp);
1858
            }
1859
 
1860
          /* Set the value into the BFD symbol.  Up til now the value
1861
             has only been kept in the gas symbolS struct.  */
1862
          symbol_get_bfdsym (symp)->value = S_GET_VALUE (symp);
1863
 
1864
          /* A warning construct is a warning symbol followed by the
1865
             symbol warned about.  Don't let anything object-format or
1866
             target-specific muck with it; it's ready for output.  */
1867
          if (symbol_get_bfdsym (symp)->flags & BSF_WARNING)
1868
            skip_next_symbol = TRUE;
1869
        }
1870
    }
1871
 
1872
  PROGRESS (1);
1873
 
1874
  /* Now do any format-specific adjustments to the symbol table, such
1875
     as adding file symbols.  */
1876
#ifdef tc_adjust_symtab
1877
  tc_adjust_symtab ();
1878
#endif
1879
#ifdef obj_adjust_symtab
1880
  obj_adjust_symtab ();
1881
#endif
1882
 
1883
  /* Stop if there is an error.  */
1884
  if (had_errors ())
1885
    return;
1886
 
1887
  /* Now that all the sizes are known, and contents correct, we can
1888
     start writing to the file.  */
1889
  set_symtab ();
1890
 
1891
  /* If *_frob_file changes the symbol value at this point, it is
1892
     responsible for moving the changed value into symp->bsym->value
1893
     as well.  Hopefully all symbol value changing can be done in
1894
     *_frob_symbol.  */
1895
#ifdef tc_frob_file
1896
  tc_frob_file ();
1897
#endif
1898
#ifdef obj_frob_file
1899
  obj_frob_file ();
1900
#endif
1901
#ifdef obj_coff_generate_pdata
1902
  obj_coff_generate_pdata ();
1903
#endif
1904
  bfd_map_over_sections (stdoutput, write_relocs, (char *) 0);
1905
 
1906
#ifdef tc_frob_file_after_relocs
1907
  tc_frob_file_after_relocs ();
1908
#endif
1909
#ifdef obj_frob_file_after_relocs
1910
  obj_frob_file_after_relocs ();
1911
#endif
1912
 
1913
  bfd_map_over_sections (stdoutput, write_contents, (char *) 0);
1914
}
1915
 
1916
#ifdef TC_GENERIC_RELAX_TABLE
1917
/* Relax a fragment by scanning TC_GENERIC_RELAX_TABLE.  */
1918
 
1919
long
1920
relax_frag (segT segment, fragS *fragP, long stretch)
1921
{
1922
  const relax_typeS *this_type;
1923
  const relax_typeS *start_type;
1924
  relax_substateT next_state;
1925
  relax_substateT this_state;
1926
  offsetT growth;
1927
  offsetT aim;
1928
  addressT target;
1929
  addressT address;
1930
  symbolS *symbolP;
1931
  const relax_typeS *table;
1932
 
1933
  target = fragP->fr_offset;
1934
  address = fragP->fr_address;
1935
  table = TC_GENERIC_RELAX_TABLE;
1936
  this_state = fragP->fr_subtype;
1937
  start_type = this_type = table + this_state;
1938
  symbolP = fragP->fr_symbol;
1939
 
1940
  if (symbolP)
1941
    {
1942
      fragS *sym_frag;
1943
 
1944
      sym_frag = symbol_get_frag (symbolP);
1945
 
1946
#ifndef DIFF_EXPR_OK
1947
      know (sym_frag != NULL);
1948
#endif
1949
      know (S_GET_SEGMENT (symbolP) != absolute_section
1950
            || sym_frag == &zero_address_frag);
1951
      target += S_GET_VALUE (symbolP);
1952
 
1953
      /* If frag has yet to be reached on this pass,
1954
         assume it will move by STRETCH just as we did.
1955
         If this is not so, it will be because some frag
1956
         between grows, and that will force another pass.  */
1957
 
1958
      if (stretch != 0
1959
          && sym_frag->relax_marker != fragP->relax_marker
1960
          && S_GET_SEGMENT (symbolP) == segment)
1961
        {
1962
          target += stretch;
1963
        }
1964
    }
1965
 
1966
  aim = target - address - fragP->fr_fix;
1967
#ifdef TC_PCREL_ADJUST
1968
  /* Currently only the ns32k family needs this.  */
1969
  aim += TC_PCREL_ADJUST (fragP);
1970
#endif
1971
 
1972
#ifdef md_prepare_relax_scan
1973
  /* Formerly called M68K_AIM_KLUDGE.  */
1974
  md_prepare_relax_scan (fragP, address, aim, this_state, this_type);
1975
#endif
1976
 
1977
  if (aim < 0)
1978
    {
1979
      /* Look backwards.  */
1980
      for (next_state = this_type->rlx_more; next_state;)
1981
        if (aim >= this_type->rlx_backward)
1982
          next_state = 0;
1983
        else
1984
          {
1985
            /* Grow to next state.  */
1986
            this_state = next_state;
1987
            this_type = table + this_state;
1988
            next_state = this_type->rlx_more;
1989
          }
1990
    }
1991
  else
1992
    {
1993
      /* Look forwards.  */
1994
      for (next_state = this_type->rlx_more; next_state;)
1995
        if (aim <= this_type->rlx_forward)
1996
          next_state = 0;
1997
        else
1998
          {
1999
            /* Grow to next state.  */
2000
            this_state = next_state;
2001
            this_type = table + this_state;
2002
            next_state = this_type->rlx_more;
2003
          }
2004
    }
2005
 
2006
  growth = this_type->rlx_length - start_type->rlx_length;
2007
  if (growth != 0)
2008
    fragP->fr_subtype = this_state;
2009
  return growth;
2010
}
2011
 
2012
#endif /* defined (TC_GENERIC_RELAX_TABLE)  */
2013
 
2014
/* Relax_align. Advance location counter to next address that has 'alignment'
2015
   lowest order bits all 0s, return size of adjustment made.  */
2016
static relax_addressT
2017
relax_align (register relax_addressT address,   /* Address now.  */
2018
             register int alignment     /* Alignment (binary).  */)
2019
{
2020
  relax_addressT mask;
2021
  relax_addressT new_address;
2022
 
2023
  mask = ~((~0) << alignment);
2024
  new_address = (address + mask) & (~mask);
2025
#ifdef LINKER_RELAXING_SHRINKS_ONLY
2026
  if (linkrelax)
2027
    /* We must provide lots of padding, so the linker can discard it
2028
       when needed.  The linker will not add extra space, ever.  */
2029
    new_address += (1 << alignment);
2030
#endif
2031
  return (new_address - address);
2032
}
2033
 
2034
/* Now we have a segment, not a crowd of sub-segments, we can make
2035
   fr_address values.
2036
 
2037
   Relax the frags.
2038
 
2039
   After this, all frags in this segment have addresses that are correct
2040
   within the segment. Since segments live in different file addresses,
2041
   these frag addresses may not be the same as final object-file
2042
   addresses.  */
2043
 
2044
int
2045
relax_segment (struct frag *segment_frag_root, segT segment, int pass)
2046
{
2047
  unsigned long frag_count;
2048
  struct frag *fragP;
2049
  relax_addressT address;
2050
  int ret;
2051
 
2052
  /* In case md_estimate_size_before_relax() wants to make fixSs.  */
2053
  subseg_change (segment, 0);
2054
 
2055
  /* For each frag in segment: count and store  (a 1st guess of)
2056
     fr_address.  */
2057
  address = 0;
2058
  for (frag_count = 0, fragP = segment_frag_root;
2059
       fragP;
2060
       fragP = fragP->fr_next, frag_count ++)
2061
    {
2062
      fragP->relax_marker = 0;
2063
      fragP->fr_address = address;
2064
      address += fragP->fr_fix;
2065
 
2066
      switch (fragP->fr_type)
2067
        {
2068
        case rs_fill:
2069
          address += fragP->fr_offset * fragP->fr_var;
2070
          break;
2071
 
2072
        case rs_align:
2073
        case rs_align_code:
2074
        case rs_align_test:
2075
          {
2076
            addressT offset = relax_align (address, (int) fragP->fr_offset);
2077
 
2078
            if (fragP->fr_subtype != 0 && offset > fragP->fr_subtype)
2079
              offset = 0;
2080
 
2081
            if (offset % fragP->fr_var != 0)
2082
              {
2083
                as_bad_where (fragP->fr_file, fragP->fr_line,
2084
                              _("alignment padding (%lu bytes) not a multiple of %ld"),
2085
                              (unsigned long) offset, (long) fragP->fr_var);
2086
                offset -= (offset % fragP->fr_var);
2087
              }
2088
 
2089
            address += offset;
2090
          }
2091
          break;
2092
 
2093
        case rs_org:
2094
        case rs_space:
2095
          /* Assume .org is nugatory. It will grow with 1st relax.  */
2096
          break;
2097
 
2098
        case rs_machine_dependent:
2099
          /* If fr_symbol is an expression, this call to
2100
             resolve_symbol_value sets up the correct segment, which will
2101
             likely be needed in md_estimate_size_before_relax.  */
2102
          if (fragP->fr_symbol)
2103
            resolve_symbol_value (fragP->fr_symbol);
2104
 
2105
          address += md_estimate_size_before_relax (fragP, segment);
2106
          break;
2107
 
2108
#ifndef WORKING_DOT_WORD
2109
          /* Broken words don't concern us yet.  */
2110
        case rs_broken_word:
2111
          break;
2112
#endif
2113
 
2114
        case rs_leb128:
2115
          /* Initial guess is always 1; doing otherwise can result in
2116
             stable solutions that are larger than the minimum.  */
2117
          address += fragP->fr_offset = 1;
2118
          break;
2119
 
2120
        case rs_cfa:
2121
          address += eh_frame_estimate_size_before_relax (fragP);
2122
          break;
2123
 
2124
        case rs_dwarf2dbg:
2125
          address += dwarf2dbg_estimate_size_before_relax (fragP);
2126
          break;
2127
 
2128
        default:
2129
          BAD_CASE (fragP->fr_type);
2130
          break;
2131
        }
2132
    }
2133
 
2134
  /* Do relax().  */
2135
  {
2136
    unsigned long max_iterations;
2137
 
2138
    /* Cumulative address adjustment.  */
2139
    offsetT stretch;
2140
 
2141
    /* Have we made any adjustment this pass?  We can't just test
2142
       stretch because one piece of code may have grown and another
2143
       shrank.  */
2144
    int stretched;
2145
 
2146
    /* Most horrible, but gcc may give us some exception data that
2147
       is impossible to assemble, of the form
2148
 
2149
       .align 4
2150
       .byte 0, 0
2151
       .uleb128 end - start
2152
       start:
2153
       .space 128*128 - 1
2154
       .align 4
2155
       end:
2156
 
2157
       If the leb128 is two bytes in size, then end-start is 128*128,
2158
       which requires a three byte leb128.  If the leb128 is three
2159
       bytes in size, then end-start is 128*128-1, which requires a
2160
       two byte leb128.  We work around this dilemma by inserting
2161
       an extra 4 bytes of alignment just after the .align.  This
2162
       works because the data after the align is accessed relative to
2163
       the end label.
2164
 
2165
       This counter is used in a tiny state machine to detect
2166
       whether a leb128 followed by an align is impossible to
2167
       relax.  */
2168
    int rs_leb128_fudge = 0;
2169
 
2170
    /* We want to prevent going into an infinite loop where one frag grows
2171
       depending upon the location of a symbol which is in turn moved by
2172
       the growing frag.  eg:
2173
 
2174
         foo = .
2175
         .org foo+16
2176
         foo = .
2177
 
2178
       So we dictate that this algorithm can be at most O2.  */
2179
    max_iterations = frag_count * frag_count;
2180
    /* Check for overflow.  */
2181
    if (max_iterations < frag_count)
2182
      max_iterations = frag_count;
2183
 
2184
    ret = 0;
2185
    do
2186
      {
2187
        stretch = 0;
2188
        stretched = 0;
2189
 
2190
        for (fragP = segment_frag_root; fragP; fragP = fragP->fr_next)
2191
          {
2192
            offsetT growth = 0;
2193
            addressT was_address;
2194
            offsetT offset;
2195
            symbolS *symbolP;
2196
 
2197
            fragP->relax_marker ^= 1;
2198
            was_address = fragP->fr_address;
2199
            address = fragP->fr_address += stretch;
2200
            symbolP = fragP->fr_symbol;
2201
            offset = fragP->fr_offset;
2202
 
2203
            switch (fragP->fr_type)
2204
              {
2205
              case rs_fill:     /* .fill never relaxes.  */
2206
                growth = 0;
2207
                break;
2208
 
2209
#ifndef WORKING_DOT_WORD
2210
                /* JF:  This is RMS's idea.  I do *NOT* want to be blamed
2211
                   for it I do not want to write it.  I do not want to have
2212
                   anything to do with it.  This is not the proper way to
2213
                   implement this misfeature.  */
2214
              case rs_broken_word:
2215
                {
2216
                  struct broken_word *lie;
2217
                  struct broken_word *untruth;
2218
 
2219
                  /* Yes this is ugly (storing the broken_word pointer
2220
                     in the symbol slot).  Still, this whole chunk of
2221
                     code is ugly, and I don't feel like doing anything
2222
                     about it.  Think of it as stubbornness in action.  */
2223
                  growth = 0;
2224
                  for (lie = (struct broken_word *) (fragP->fr_symbol);
2225
                       lie && lie->dispfrag == fragP;
2226
                       lie = lie->next_broken_word)
2227
                    {
2228
 
2229
                      if (lie->added)
2230
                        continue;
2231
 
2232
                      offset = (S_GET_VALUE (lie->add)
2233
                                + lie->addnum
2234
                                - S_GET_VALUE (lie->sub));
2235
                      if (offset <= -32768 || offset >= 32767)
2236
                        {
2237
                          if (flag_warn_displacement)
2238
                            {
2239
                              char buf[50];
2240
                              sprint_value (buf, (addressT) lie->addnum);
2241
                              as_warn_where (fragP->fr_file, fragP->fr_line,
2242
                                             _(".word %s-%s+%s didn't fit"),
2243
                                             S_GET_NAME (lie->add),
2244
                                             S_GET_NAME (lie->sub),
2245
                                             buf);
2246
                            }
2247
                          if (fragP->fr_subtype == 0)
2248
                            {
2249
                              fragP->fr_subtype++;
2250
                              growth += md_short_jump_size;
2251
                            }
2252
 
2253
                          /* Redirect *all* words of this table with the same
2254
                             target, lest we have to handle the case where the
2255
                             same target but with a offset that fits on this
2256
                             round overflows at the next relaxation round.  */
2257
                          for (untruth = (struct broken_word *) (fragP->fr_symbol);
2258
                               untruth && untruth->dispfrag == lie->dispfrag;
2259
                               untruth = untruth->next_broken_word)
2260
                            if ((symbol_get_frag (untruth->add)
2261
                                 == symbol_get_frag (lie->add))
2262
                                && (S_GET_VALUE (untruth->add)
2263
                                    == S_GET_VALUE (lie->add)))
2264
                              {
2265
                                untruth->added = 2;
2266
                                untruth->use_jump = lie;
2267
                              }
2268
 
2269
                          lie->added = 1;
2270
                          growth += md_long_jump_size;
2271
                        }
2272
                    }
2273
 
2274
                  break;
2275
                }               /* case rs_broken_word  */
2276
#endif
2277
              case rs_align:
2278
              case rs_align_code:
2279
              case rs_align_test:
2280
                {
2281
                  addressT oldoff, newoff;
2282
 
2283
                  oldoff = relax_align (was_address + fragP->fr_fix,
2284
                                        (int) offset);
2285
                  newoff = relax_align (address + fragP->fr_fix,
2286
                                        (int) offset);
2287
 
2288
                  if (fragP->fr_subtype != 0)
2289
                    {
2290
                      if (oldoff > fragP->fr_subtype)
2291
                        oldoff = 0;
2292
                      if (newoff > fragP->fr_subtype)
2293
                        newoff = 0;
2294
                    }
2295
 
2296
                  growth = newoff - oldoff;
2297
 
2298
                  /* If this align happens to follow a leb128 and
2299
                     we have determined that the leb128 is bouncing
2300
                     in size, then break the cycle by inserting an
2301
                     extra alignment.  */
2302
                  if (growth < 0
2303
                      && (rs_leb128_fudge & 16) != 0
2304
                      && (rs_leb128_fudge & 15) >= 2)
2305
                    {
2306
                      segment_info_type *seginfo = seg_info (segment);
2307
                      struct obstack *ob = &seginfo->frchainP->frch_obstack;
2308
                      struct frag *newf;
2309
 
2310
                      newf = frag_alloc (ob);
2311
                      obstack_blank_fast (ob, fragP->fr_var);
2312
                      obstack_finish (ob);
2313
                      memcpy (newf, fragP, SIZEOF_STRUCT_FRAG);
2314
                      memcpy (newf->fr_literal,
2315
                              fragP->fr_literal + fragP->fr_fix,
2316
                              fragP->fr_var);
2317
                      newf->fr_type = rs_fill;
2318
                      newf->fr_fix = 0;
2319
                      newf->fr_offset = (((offsetT) 1 << fragP->fr_offset)
2320
                                         / fragP->fr_var);
2321
                      if (newf->fr_offset * newf->fr_var
2322
                          != (offsetT) 1 << fragP->fr_offset)
2323
                        {
2324
                          newf->fr_offset = (offsetT) 1 << fragP->fr_offset;
2325
                          newf->fr_var = 1;
2326
                        }
2327
                      /* Include growth of new frag, because rs_fill
2328
                         frags don't normally grow.  */
2329
                      growth += newf->fr_offset * newf->fr_var;
2330
                      /* The new frag address is newoff.  Adjust this
2331
                         for the amount we'll add when we process the
2332
                         new frag.  */
2333
                      newf->fr_address = newoff - stretch - growth;
2334
                      newf->relax_marker ^= 1;
2335
                      fragP->fr_next = newf;
2336
#ifdef DEBUG
2337
                      as_warn (_("padding added"));
2338
#endif
2339
                    }
2340
                }
2341
                break;
2342
 
2343
              case rs_org:
2344
                {
2345
                  addressT target = offset;
2346
                  addressT after;
2347
 
2348
                  if (symbolP)
2349
                    {
2350
                      /* Convert from an actual address to an octet offset
2351
                         into the section.  Here it is assumed that the
2352
                         section's VMA is zero, and can omit subtracting it
2353
                         from the symbol's value to get the address offset.  */
2354
                      know (S_GET_SEGMENT (symbolP)->vma == 0);
2355
                      target += S_GET_VALUE (symbolP) * OCTETS_PER_BYTE;
2356
                    }
2357
 
2358
                  know (fragP->fr_next);
2359
                  after = fragP->fr_next->fr_address + stretch;
2360
                  growth = target - after;
2361
                  if (growth < 0)
2362
                    {
2363
                      growth = 0;
2364
 
2365
                      /* Don't error on first few frag relax passes.
2366
                         The symbol might be an expression involving
2367
                         symbol values from other sections.  If those
2368
                         sections have not yet been processed their
2369
                         frags will all have zero addresses, so we
2370
                         will calculate incorrect values for them.  The
2371
                         number of passes we allow before giving an
2372
                         error is somewhat arbitrary.  It should be at
2373
                         least one, with larger values requiring
2374
                         increasingly contrived dependencies between
2375
                         frags to trigger a false error.  */
2376
                      if (pass < 2)
2377
                        {
2378
                          /* Force another pass.  */
2379
                          ret = 1;
2380
                          break;
2381
                        }
2382
 
2383
                      /* Growth may be negative, but variable part of frag
2384
                         cannot have fewer than 0 chars.  That is, we can't
2385
                         .org backwards.  */
2386
                      as_bad_where (fragP->fr_file, fragP->fr_line,
2387
                                    _("attempt to move .org backwards"));
2388
 
2389
                      /* We've issued an error message.  Change the
2390
                         frag to avoid cascading errors.  */
2391
                      fragP->fr_type = rs_align;
2392
                      fragP->fr_subtype = 0;
2393
                      fragP->fr_offset = 0;
2394
                      fragP->fr_fix = after - address;
2395
                    }
2396
                }
2397
                break;
2398
 
2399
              case rs_space:
2400
                growth = 0;
2401
                if (symbolP)
2402
                  {
2403
                    offsetT amount;
2404
 
2405
                    amount = S_GET_VALUE (symbolP);
2406
                    if (S_GET_SEGMENT (symbolP) != absolute_section
2407
                        || S_IS_COMMON (symbolP)
2408
                        || ! S_IS_DEFINED (symbolP))
2409
                      {
2410
                        as_bad_where (fragP->fr_file, fragP->fr_line,
2411
                                      _(".space specifies non-absolute value"));
2412
                        /* Prevent repeat of this error message.  */
2413
                        fragP->fr_symbol = 0;
2414
                      }
2415
                    else if (amount < 0)
2416
                      {
2417
                        /* Don't error on first few frag relax passes.
2418
                           See rs_org comment for a longer explanation.  */
2419
                        if (pass < 2)
2420
                          {
2421
                            ret = 1;
2422
                            break;
2423
                          }
2424
 
2425
                        as_warn_where (fragP->fr_file, fragP->fr_line,
2426
                                       _(".space or .fill with negative value, ignored"));
2427
                        fragP->fr_symbol = 0;
2428
                      }
2429
                    else
2430
                      growth = (was_address + fragP->fr_fix + amount
2431
                                - fragP->fr_next->fr_address);
2432
                  }
2433
                break;
2434
 
2435
              case rs_machine_dependent:
2436
#ifdef md_relax_frag
2437
                growth = md_relax_frag (segment, fragP, stretch);
2438
#else
2439
#ifdef TC_GENERIC_RELAX_TABLE
2440
                /* The default way to relax a frag is to look through
2441
                   TC_GENERIC_RELAX_TABLE.  */
2442
                growth = relax_frag (segment, fragP, stretch);
2443
#endif /* TC_GENERIC_RELAX_TABLE  */
2444
#endif
2445
                break;
2446
 
2447
              case rs_leb128:
2448
                {
2449
                  valueT value;
2450
                  offsetT size;
2451
 
2452
                  value = resolve_symbol_value (fragP->fr_symbol);
2453
                  size = sizeof_leb128 (value, fragP->fr_subtype);
2454
                  growth = size - fragP->fr_offset;
2455
                  fragP->fr_offset = size;
2456
                }
2457
                break;
2458
 
2459
              case rs_cfa:
2460
                growth = eh_frame_relax_frag (fragP);
2461
                break;
2462
 
2463
              case rs_dwarf2dbg:
2464
                growth = dwarf2dbg_relax_frag (fragP);
2465
                break;
2466
 
2467
              default:
2468
                BAD_CASE (fragP->fr_type);
2469
                break;
2470
              }
2471
            if (growth)
2472
              {
2473
                stretch += growth;
2474
                stretched = 1;
2475
                if (fragP->fr_type == rs_leb128)
2476
                  rs_leb128_fudge += 16;
2477
                else if (fragP->fr_type == rs_align
2478
                         && (rs_leb128_fudge & 16) != 0
2479
                         && stretch == 0)
2480
                  rs_leb128_fudge += 16;
2481
                else
2482
                  rs_leb128_fudge = 0;
2483
              }
2484
          }
2485
 
2486
        if (stretch == 0
2487
            && (rs_leb128_fudge & 16) == 0
2488
            && (rs_leb128_fudge & -16) != 0)
2489
          rs_leb128_fudge += 1;
2490
        else
2491
          rs_leb128_fudge = 0;
2492
      }
2493
    /* Until nothing further to relax.  */
2494
    while (stretched && -- max_iterations);
2495
 
2496
    if (stretched)
2497
      as_fatal (_("Infinite loop encountered whilst attempting to compute the addresses of symbols in section %s"),
2498
                segment_name (segment));
2499
  }
2500
 
2501
  for (fragP = segment_frag_root; fragP; fragP = fragP->fr_next)
2502
    if (fragP->last_fr_address != fragP->fr_address)
2503
      {
2504
        fragP->last_fr_address = fragP->fr_address;
2505
        ret = 1;
2506
      }
2507
  return ret;
2508
}
2509
 
2510
void
2511
number_to_chars_bigendian (char *buf, valueT val, int n)
2512
{
2513
  if (n <= 0)
2514
    abort ();
2515
  while (n--)
2516
    {
2517
      buf[n] = val & 0xff;
2518
      val >>= 8;
2519
    }
2520
}
2521
 
2522
void
2523
number_to_chars_littleendian (char *buf, valueT val, int n)
2524
{
2525
  if (n <= 0)
2526
    abort ();
2527
  while (n--)
2528
    {
2529
      *buf++ = val & 0xff;
2530
      val >>= 8;
2531
    }
2532
}
2533
 
2534
void
2535
write_print_statistics (FILE *file)
2536
{
2537
  fprintf (file, "fixups: %d\n", n_fixups);
2538
}
2539
 
2540
/* For debugging.  */
2541
extern int indent_level;
2542
 
2543
void
2544
print_fixup (fixS *fixp)
2545
{
2546
  indent_level = 1;
2547
  fprintf (stderr, "fix ");
2548
  fprintf_vma (stderr, (bfd_vma)((bfd_hostptr_t) fixp));
2549
  fprintf (stderr, " %s:%d",fixp->fx_file, fixp->fx_line);
2550
  if (fixp->fx_pcrel)
2551
    fprintf (stderr, " pcrel");
2552
  if (fixp->fx_pcrel_adjust)
2553
    fprintf (stderr, " pcrel_adjust=%d", fixp->fx_pcrel_adjust);
2554
  if (fixp->fx_im_disp)
2555
    {
2556
#ifdef TC_NS32K
2557
      fprintf (stderr, " im_disp=%d", fixp->fx_im_disp);
2558
#else
2559
      fprintf (stderr, " im_disp");
2560
#endif
2561
    }
2562
  if (fixp->fx_tcbit)
2563
    fprintf (stderr, " tcbit");
2564
  if (fixp->fx_done)
2565
    fprintf (stderr, " done");
2566
  fprintf (stderr, "\n    size=%d frag=", fixp->fx_size);
2567
  fprintf_vma (stderr, (bfd_vma) ((bfd_hostptr_t) fixp->fx_frag));
2568
  fprintf (stderr, " where=%ld offset=%lx addnumber=%lx",
2569
           (long) fixp->fx_where,
2570
           (unsigned long) fixp->fx_offset,
2571
           (unsigned long) fixp->fx_addnumber);
2572
  fprintf (stderr, "\n    %s (%d)", bfd_get_reloc_code_name (fixp->fx_r_type),
2573
           fixp->fx_r_type);
2574
  if (fixp->fx_addsy)
2575
    {
2576
      fprintf (stderr, "\n   +<");
2577
      print_symbol_value_1 (stderr, fixp->fx_addsy);
2578
      fprintf (stderr, ">");
2579
    }
2580
  if (fixp->fx_subsy)
2581
    {
2582
      fprintf (stderr, "\n   -<");
2583
      print_symbol_value_1 (stderr, fixp->fx_subsy);
2584
      fprintf (stderr, ">");
2585
    }
2586
  fprintf (stderr, "\n");
2587
#ifdef TC_FIX_DATA_PRINT
2588
  TC_FIX_DATA_PRINT (stderr, fixp);
2589
#endif
2590
}

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