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1 145 khays
# This shell script emits a C file. -*- C -*-
2
# It does some substitutions.
3
if [ -z "$MACHINE" ]; then
4
  OUTPUT_ARCH=${ARCH}
5
else
6
  OUTPUT_ARCH=${ARCH}:${MACHINE}
7
fi
8
fragment <
9
/* This file is part of GLD, the Gnu Linker.
10
   Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
11
   2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
12
 
13
   This file is part of the GNU Binutils.
14
 
15
   This program is free software; you can redistribute it and/or modify
16
   it under the terms of the GNU General Public License as published by
17
   the Free Software Foundation; either version 3 of the License, or
18
   (at your option) any later version.
19
 
20
   This program is distributed in the hope that it will be useful,
21
   but WITHOUT ANY WARRANTY; without even the implied warranty of
22
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
23
   GNU General Public License for more details.
24
 
25
   You should have received a copy of the GNU General Public License
26
   along with this program; if not, write to the Free Software
27
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
28
   MA 02110-1301, USA.  */
29
 
30
 
31
/* For WINDOWS_NT */
32
/* The original file generated returned different default scripts depending
33
   on whether certain switches were set, but these switches pertain to the
34
   Linux system and that particular version of coff.  In the NT case, we
35
   only determine if the subsystem is console or windows in order to select
36
   the correct entry point by default. */
37
 
38
#include "sysdep.h"
39
#include "bfd.h"
40
#include "bfdlink.h"
41
#include "getopt.h"
42
#include "libiberty.h"
43
#include "filenames.h"
44
#include "ld.h"
45
#include "ldmain.h"
46
#include "ldexp.h"
47
#include "ldlang.h"
48
#include "ldfile.h"
49
#include "ldemul.h"
50
#include 
51
#include "ldlex.h"
52
#include "ldmisc.h"
53
#include "ldctor.h"
54
#include "coff/internal.h"
55
#include "../bfd/libcoff.h"
56
 
57
#define TARGET_IS_${EMULATION_NAME}
58
 
59
static struct internal_extra_pe_aouthdr pe;
60
static int dll;
61
 
62
extern const char *output_filename;
63
 
64
static void
65
gld_${EMULATION_NAME}_before_parse (void)
66
{
67
  ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
68
  output_filename = "a.exe";
69
}
70
 
71
/* PE format extra command line options.  */
72
 
73
/* Used for setting flags in the PE header. */
74
#define OPTION_BASE_FILE                (300  + 1)
75
#define OPTION_DLL                      (OPTION_BASE_FILE + 1)
76
#define OPTION_FILE_ALIGNMENT           (OPTION_DLL + 1)
77
#define OPTION_IMAGE_BASE               (OPTION_FILE_ALIGNMENT + 1)
78
#define OPTION_MAJOR_IMAGE_VERSION      (OPTION_IMAGE_BASE + 1)
79
#define OPTION_MAJOR_OS_VERSION         (OPTION_MAJOR_IMAGE_VERSION + 1)
80
#define OPTION_MAJOR_SUBSYSTEM_VERSION  (OPTION_MAJOR_OS_VERSION + 1)
81
#define OPTION_MINOR_IMAGE_VERSION      (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
82
#define OPTION_MINOR_OS_VERSION         (OPTION_MINOR_IMAGE_VERSION + 1)
83
#define OPTION_MINOR_SUBSYSTEM_VERSION  (OPTION_MINOR_OS_VERSION + 1)
84
#define OPTION_SECTION_ALIGNMENT        (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
85
#define OPTION_STACK                    (OPTION_SECTION_ALIGNMENT + 1)
86
#define OPTION_SUBSYSTEM                (OPTION_STACK + 1)
87
#define OPTION_HEAP                     (OPTION_SUBSYSTEM + 1)
88
 
89
static void
90
gld${EMULATION_NAME}_add_options
91
  (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
92
   struct option **longopts, int nrl ATTRIBUTE_UNUSED,
93
   struct option **really_longopts ATTRIBUTE_UNUSED)
94
{
95
  static const struct option xtra_long[] = {
96
    /* PE options */
97
    {"base-file", required_argument, NULL, OPTION_BASE_FILE},
98
    {"dll", no_argument, NULL, OPTION_DLL},
99
    {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
100
    {"heap", required_argument, NULL, OPTION_HEAP},
101
    {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
102
    {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
103
    {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
104
    {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
105
    {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
106
    {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
107
    {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
108
    {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
109
    {"stack", required_argument, NULL, OPTION_STACK},
110
    {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
111
    {NULL, no_argument, NULL, 0}
112
  };
113
 
114
  *longopts = (struct option *)
115
    xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
116
  memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
117
}
118
 
119
 
120
/* PE/WIN32; added routines to get the subsystem type, heap and/or stack
121
   parameters which may be input from the command line */
122
 
123
typedef struct {
124
  void *ptr;
125
  int size;
126
  int value;
127
  char *symbol;
128
  int inited;
129
} definfo;
130
 
131
#define D(field,symbol,def)  {&pe.field,sizeof(pe.field), def, symbol,0}
132
 
133
static definfo init[] =
134
{
135
  /* imagebase must be first */
136
#define IMAGEBASEOFF 0
137
  D(ImageBase,"__image_base__", BEOS_EXE_IMAGE_BASE),
138
#define DLLOFF 1
139
  {&dll, sizeof(dll), 0, "__dll__", 0},
140
  D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
141
  D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
142
  D(MajorOperatingSystemVersion,"__major_os_version__", 4),
143
  D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
144
  D(MajorImageVersion,"__major_image_version__", 1),
145
  D(MinorImageVersion,"__minor_image_version__", 0),
146
  D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
147
  D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
148
  D(Subsystem,"__subsystem__", 3),
149
  D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000),
150
  D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
151
  D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
152
  D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
153
  D(LoaderFlags,"__loader_flags__", 0x0),
154
  { NULL, 0, 0, NULL, 0 }
155
};
156
 
157
 
158
static void
159
set_pe_name (char *name, long val)
160
{
161
  int i;
162
  /* Find the name and set it. */
163
  for (i = 0; init[i].ptr; i++)
164
    {
165
      if (strcmp (name, init[i].symbol) == 0)
166
        {
167
          init[i].value = val;
168
          init[i].inited = 1;
169
          return;
170
        }
171
    }
172
  abort();
173
}
174
 
175
 
176
static void
177
set_pe_subsystem (void)
178
{
179
  const char *sver;
180
  int len;
181
  int i;
182
  static const struct
183
    {
184
      const char *name;
185
      const int value;
186
      const char *entry;
187
    }
188
  v[] =
189
    {
190
      { "native", 1, "_NtProcessStartup" },
191
      { "windows", 2, "_WinMainCRTStartup" },
192
      { "wwindows", 2, "_wWinMainCRTStartup" },
193
      { "console", 3, "_mainCRTStartup" },
194
      { "wconsole", 3, "_wmainCRTStartup" },
195
      { "posix", 7, "___PosixProcessStartup"},
196
      { 0, 0, 0 }
197
    };
198
 
199
  sver = strchr (optarg, ':');
200
  if (sver == NULL)
201
    len = strlen (optarg);
202
  else
203
    {
204
      char *end;
205
 
206
      len = sver - optarg;
207
      set_pe_name ("__major_subsystem_version__",
208
                   strtoul (sver + 1, &end, 0));
209
      if (*end == '.')
210
        set_pe_name ("__minor_subsystem_version__",
211
                     strtoul (end + 1, &end, 0));
212
      if (*end != '\0')
213
        einfo ("%P: warning: bad version number in -subsystem option\n");
214
    }
215
 
216
  for (i = 0; v[i].name; i++)
217
    {
218
      if (strncmp (optarg, v[i].name, len) == 0
219
          && v[i].name[len] == '\0')
220
        {
221
          set_pe_name ("__subsystem__", v[i].value);
222
 
223
          /* If the subsystem is windows, we use a different entry
224
             point.  */
225
          lang_default_entry (v[i].entry);
226
 
227
          return;
228
        }
229
    }
230
  einfo ("%P%F: invalid subsystem type %s\n", optarg);
231
}
232
 
233
 
234
static void
235
set_pe_value (char *name)
236
{
237
  char *end;
238
  set_pe_name (name,  strtoul (optarg, &end, 0));
239
  if (end == optarg)
240
    {
241
      einfo ("%P%F: invalid hex number for PE parameter '%s'\n", optarg);
242
    }
243
 
244
  optarg = end;
245
}
246
 
247
static void
248
set_pe_stack_heap (char *resname, char *comname)
249
{
250
  set_pe_value (resname);
251
  if (*optarg == ',')
252
    {
253
      optarg++;
254
      set_pe_value (comname);
255
    }
256
  else if (*optarg)
257
    {
258
      einfo ("%P%F: strange hex info for PE parameter '%s'\n", optarg);
259
    }
260
}
261
 
262
 
263
static bfd_boolean
264
gld${EMULATION_NAME}_handle_option (int optc)
265
{
266
  switch (optc)
267
    {
268
    default:
269
      return FALSE;
270
 
271
    case OPTION_BASE_FILE:
272
      link_info.base_file = fopen (optarg, FOPEN_WB);
273
      if (link_info.base_file == NULL)
274
        einfo (_("%F%P: cannot open base file %s\n"), optarg);
275
      break;
276
 
277
      /* PE options */
278
    case OPTION_HEAP:
279
      set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
280
      break;
281
    case OPTION_STACK:
282
      set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
283
      break;
284
    case OPTION_SUBSYSTEM:
285
      set_pe_subsystem ();
286
      break;
287
    case OPTION_MAJOR_OS_VERSION:
288
      set_pe_value ("__major_os_version__");
289
      break;
290
    case OPTION_MINOR_OS_VERSION:
291
      set_pe_value ("__minor_os_version__");
292
      break;
293
    case OPTION_MAJOR_SUBSYSTEM_VERSION:
294
      set_pe_value ("__major_subsystem_version__");
295
      break;
296
    case OPTION_MINOR_SUBSYSTEM_VERSION:
297
      set_pe_value ("__minor_subsystem_version__");
298
      break;
299
    case OPTION_MAJOR_IMAGE_VERSION:
300
      set_pe_value ("__major_image_version__");
301
      break;
302
    case OPTION_MINOR_IMAGE_VERSION:
303
      set_pe_value ("__minor_image_version__");
304
      break;
305
    case OPTION_FILE_ALIGNMENT:
306
      set_pe_value ("__file_alignment__");
307
      break;
308
    case OPTION_SECTION_ALIGNMENT:
309
      set_pe_value ("__section_alignment__");
310
      break;
311
    case OPTION_DLL:
312
      set_pe_name ("__dll__", 1);
313
      break;
314
    case OPTION_IMAGE_BASE:
315
      set_pe_value ("__image_base__");
316
      break;
317
    }
318
  return TRUE;
319
}
320
 
321
/* Assign values to the special symbols before the linker script is
322
   read.  */
323
 
324
static void
325
gld_${EMULATION_NAME}_set_symbols (void)
326
{
327
  /* Run through and invent symbols for all the
328
     names and insert the defaults. */
329
  int j;
330
 
331
  if (!init[IMAGEBASEOFF].inited)
332
    {
333
      if (link_info.relocatable)
334
        init[IMAGEBASEOFF].value = 0;
335
      else if (init[DLLOFF].value)
336
        init[IMAGEBASEOFF].value = BEOS_DLL_IMAGE_BASE;
337
      else
338
        init[IMAGEBASEOFF].value = BEOS_EXE_IMAGE_BASE;
339
    }
340
 
341
  /* Don't do any symbol assignments if this is a relocatable link.  */
342
  if (link_info.relocatable)
343
    return;
344
 
345
  /* Glue the assignments into the abs section */
346
  push_stat_ptr (&abs_output_section->children);
347
 
348
  for (j = 0; init[j].ptr; j++)
349
    {
350
      long val = init[j].value;
351
      lang_add_assignment (exp_assign (init[j].symbol, exp_intop (val)));
352
      if (init[j].size == sizeof(short))
353
        *(short *)init[j].ptr = val;
354
      else if (init[j].size == sizeof(int))
355
        *(int *)init[j].ptr = val;
356
      else if (init[j].size == sizeof(long))
357
        *(long *)init[j].ptr = val;
358
      /* This might be a long long or other special type.  */
359
      else if (init[j].size == sizeof(bfd_vma))
360
        *(bfd_vma *)init[j].ptr = val;
361
      else      abort();
362
    }
363
  /* Restore the pointer. */
364
  pop_stat_ptr ();
365
 
366
  if (pe.FileAlignment >
367
      pe.SectionAlignment)
368
    {
369
      einfo ("%P: warning, file alignment > section alignment.\n");
370
    }
371
}
372
 
373
static void
374
gld_${EMULATION_NAME}_after_open (void)
375
{
376
  after_open_default ();
377
 
378
  /* Pass the wacky PE command line options into the output bfd.
379
     FIXME: This should be done via a function, rather than by
380
     including an internal BFD header.  */
381
  if (!coff_data(link_info.output_bfd)->pe)
382
    {
383
      einfo ("%F%P: PE operations on non PE file.\n");
384
    }
385
 
386
  pe_data(link_info.output_bfd)->pe_opthdr = pe;
387
  pe_data(link_info.output_bfd)->dll = init[DLLOFF].value;
388
 
389
}
390
 
391
/* Callback functions for qsort in sort_sections. */
392
 
393
static int
394
sort_by_file_name (const void *a, const void *b)
395
{
396
  const lang_statement_union_type *const *ra = a;
397
  const lang_statement_union_type *const *rb = b;
398
  int i, a_sec, b_sec;
399
 
400
  i = filename_cmp ((*ra)->input_section.section->owner->my_archive->filename,
401
                    (*rb)->input_section.section->owner->my_archive->filename);
402
  if (i != 0)
403
    return i;
404
 
405
  i = filename_cmp ((*ra)->input_section.section->owner->filename,
406
                    (*rb)->input_section.section->owner->filename);
407
  if (i != 0)
408
    return i;
409
  /* the tail idata4/5 are the only ones without relocs to an
410
     idata$6 section unless we are importing by ordinal,
411
     so sort them to last to terminate the IAT
412
     and HNT properly. if no reloc this one is import by ordinal
413
     so we have to sort by section contents */
414
 
415
  if ( ((*ra)->input_section.section->reloc_count + (*rb)->input_section.section->reloc_count) )
416
    {
417
       i =  (((*ra)->input_section.section->reloc_count >
418
                 (*rb)->input_section.section->reloc_count) ? -1 : 0);
419
       if ( i != 0)
420
         return i;
421
 
422
        return  (((*ra)->input_section.section->reloc_count >
423
                 (*rb)->input_section.section->reloc_count) ? 0 : 1);
424
    }
425
  else
426
    {
427
       if ( (strcmp( (*ra)->input_section.section->name, ".idata$6") == 0) )
428
          return 0; /* don't sort .idata$6 or .idata$7 FIXME dlltool eliminate .idata$7 */
429
 
430
       if (! bfd_get_section_contents ((*ra)->input_section.section->owner,
431
         (*ra)->input_section.section, &a_sec, (file_ptr) 0, (bfd_size_type)sizeof(a_sec)))
432
            einfo ("%F%B: Can't read contents of section .idata: %E\n",
433
                 (*ra)->input_section.section->owner);
434
 
435
       if (! bfd_get_section_contents ((*rb)->input_section.section->owner,
436
        (*rb)->input_section.section, &b_sec, (file_ptr) 0, (bfd_size_type)sizeof(b_sec) ))
437
           einfo ("%F%B: Can't read contents of section .idata: %E\n",
438
                (*rb)->input_section.section->owner);
439
 
440
      i =  ((a_sec < b_sec) ? -1 : 0);
441
      if ( i != 0)
442
        return i;
443
      return  ((a_sec < b_sec) ? 0 : 1);
444
   }
445
return 0;
446
}
447
 
448
static int
449
sort_by_section_name (const void *a, const void *b)
450
{
451
  const lang_statement_union_type *const *ra = a;
452
  const lang_statement_union_type *const *rb = b;
453
  int i;
454
  i = strcmp ((*ra)->input_section.section->name,
455
              (*rb)->input_section.section->name);
456
  /* This is a hack to make .stab and .stabstr last, so we don't have
457
     to fix strip/objcopy for .reloc sections.
458
     FIXME stripping images with a .rsrc section still needs to be fixed.  */
459
  if (i != 0)
460
    {
461
      if ((CONST_STRNEQ ((*ra)->input_section.section->name, ".stab"))
462
           && (! CONST_STRNEQ ((*rb)->input_section.section->name, ".stab")))
463
         return 1;
464
    }
465
  return i;
466
}
467
 
468
/* Subroutine of sort_sections to a contiguous subset of a list of sections.
469
   NEXT_AFTER is the element after the last one to sort.
470
   The result is a pointer to the last element's "next" pointer.  */
471
 
472
static lang_statement_union_type **
473
sort_sections_1 (lang_statement_union_type **startptr,
474
                 lang_statement_union_type *next_after,
475
                 int count,
476
                 int (*sort_func) (const void *, const void *))
477
{
478
  lang_statement_union_type **vec;
479
  lang_statement_union_type *p;
480
  int i;
481
  lang_statement_union_type **ret;
482
 
483
  if (count == 0)
484
    return startptr;
485
 
486
  vec = ((lang_statement_union_type **)
487
         xmalloc (count * sizeof (lang_statement_union_type *)));
488
 
489
  for (p = *startptr, i = 0; i < count; i++, p = p->header.next)
490
    vec[i] = p;
491
 
492
  qsort (vec, count, sizeof (vec[0]), sort_func);
493
 
494
  /* Fill in the next pointers again. */
495
  *startptr = vec[0];
496
  for (i = 0; i < count - 1; i++)
497
    vec[i]->header.next = vec[i + 1];
498
  vec[i]->header.next = next_after;
499
  ret = &vec[i]->header.next;
500
  free (vec);
501
  return ret;
502
}
503
 
504
/* Sort the .idata\$foo input sections of archives into filename order.
505
   The reason is so dlltool can arrange to have the pe dll import information
506
   generated correctly - the head of the list goes into dh.o, the tail into
507
   dt.o, and the guts into ds[nnnn].o.  Note that this is only needed for the
508
   .idata section.
509
   FIXME: This may no longer be necessary with grouped sections.  Instead of
510
   sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use
511
   .idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t.
512
   This would have to be elaborated upon to handle multiple dll's
513
   [assuming such an eloboration is possible of course].
514
 
515
   We also sort sections in '\$' wild statements.  These are created by the
516
   place_orphans routine to implement grouped sections.  */
517
 
518
static void
519
sort_sections (lang_statement_union_type *s)
520
{
521
  for (; s ; s = s->header.next)
522
    switch (s->header.type)
523
      {
524
      case lang_output_section_statement_enum:
525
        sort_sections (s->output_section_statement.children.head);
526
        break;
527
      case lang_wild_statement_enum:
528
        {
529
          lang_statement_union_type **p = &s->wild_statement.children.head;
530
          struct wildcard_list *sec;
531
 
532
          for (sec = s->wild_statement.section_list; sec; sec = sec->next)
533
            {
534
              /* Is this the .idata section?  */
535
              if (sec->spec.name != NULL
536
                  && CONST_STRNEQ (sec->spec.name, ".idata"))
537
                {
538
                  /* Sort the children.  We want to sort any objects in
539
                     the same archive.  In order to handle the case of
540
                     including a single archive multiple times, we sort
541
                     all the children by archive name and then by object
542
                     name.  After sorting them, we re-thread the pointer
543
                     chain.  */
544
 
545
                  while (*p)
546
                    {
547
                      lang_statement_union_type *start = *p;
548
                      if (start->header.type != lang_input_section_enum
549
                          || !start->input_section.section->owner->my_archive)
550
                        p = &(start->header.next);
551
                      else
552
                        {
553
                          lang_statement_union_type *end;
554
                          int count;
555
 
556
                          for (end = start, count = 0;
557
                               end && (end->header.type
558
                                       == lang_input_section_enum);
559
                               end = end->header.next)
560
                            count++;
561
 
562
                          p = sort_sections_1 (p, end, count,
563
                                               sort_by_file_name);
564
                        }
565
                    }
566
                  break;
567
                }
568
 
569
              /* If this is a collection of grouped sections, sort them.
570
                 The linker script must explicitly mention "*(.foo\$)" or
571
                 "*(.foo\$*)".  Don't sort them if \$ is not the last
572
                 character (not sure if this is really useful, but it
573
                 allows explicitly mentioning some \$ sections and letting
574
                 the linker handle the rest).  */
575
              if (sec->spec.name != NULL)
576
                {
577
                  char *q = strchr (sec->spec.name, '\$');
578
 
579
                  if (q != NULL
580
                      && (q[1] == '\0'
581
                          || (q[1] == '*' && q[2] == '\0')))
582
                    {
583
                      lang_statement_union_type *end;
584
                      int count;
585
 
586
                      for (end = *p, count = 0; end; end = end->header.next)
587
                        {
588
                          if (end->header.type != lang_input_section_enum)
589
                            abort ();
590
                          count++;
591
                        }
592
                      (void) sort_sections_1 (p, end, count,
593
                                              sort_by_section_name);
594
                    }
595
                  break;
596
                }
597
            }
598
        }
599
        break;
600
      default:
601
        break;
602
      }
603
}
604
 
605
static void
606
gld_${EMULATION_NAME}_before_allocation (void)
607
{
608
#ifdef TARGET_IS_ppcpe
609
  /* Here we rummage through the found bfds to collect toc information */
610
  {
611
    LANG_FOR_EACH_INPUT_STATEMENT (is)
612
      {
613
        if (!ppc_process_before_allocation(is->the_bfd, &link_info))
614
          {
615
            einfo("Errors encountered processing file %s\n", is->filename);
616
          }
617
      }
618
  }
619
 
620
  /* We have seen it all. Allocate it, and carry on */
621
  ppc_allocate_toc_section (&link_info);
622
#else
623
#ifdef TARGET_IS_armpe
624
  /* FIXME: we should be able to set the size of the interworking stub
625
     section.
626
 
627
     Here we rummage through the found bfds to collect glue
628
     information.  FIXME: should this be based on a command line
629
     option?  krk@cygnus.com */
630
  {
631
    LANG_FOR_EACH_INPUT_STATEMENT (is)
632
      {
633
        if (!arm_process_before_allocation (is->the_bfd, & link_info))
634
          {
635
            einfo ("Errors encountered processing file %s", is->filename);
636
          }
637
      }
638
  }
639
 
640
  /* We have seen it all. Allocate it, and carry on */
641
  arm_allocate_interworking_sections (& link_info);
642
#endif /* TARGET_IS_armpe */
643
#endif /* TARGET_IS_ppcpe */
644
 
645
  sort_sections (stat_ptr->head);
646
 
647
  before_allocation_default ();
648
}
649
 
650
/* Place an orphan section.  We use this to put sections with a '\$' in them
651
   into the right place.  Any section with a '\$' in them (e.g. .text\$foo)
652
   gets mapped to the output section with everything from the '\$' on stripped
653
   (e.g. .text).
654
   See the Microsoft Portable Executable and Common Object File Format
655
   Specification 4.1, section 4.2, Grouped Sections.
656
 
657
   FIXME: This is now handled by the linker script using wildcards,
658
   but I'm leaving this here in case we want to enable it for sections
659
   which are not mentioned in the linker script.  */
660
 
661
static lang_output_section_statement_type *
662
gld${EMULATION_NAME}_place_orphan (asection *s,
663
                                   const char *secname,
664
                                   int constraint)
665
{
666
  char *output_secname, *ps;
667
  lang_output_section_statement_type *os;
668
  lang_statement_union_type *l;
669
 
670
  if ((s->flags & SEC_ALLOC) == 0)
671
    return NULL;
672
 
673
  /* Don't process grouped sections unless doing a final link.
674
     If they're marked as COMDAT sections, we don't want .text\$foo to
675
     end up in .text and then have .text disappear because it's marked
676
     link-once-discard.  */
677
  if (link_info.relocatable)
678
    return NULL;
679
 
680
  /* Everything from the '\$' on gets deleted so don't allow '\$' as the
681
     first character.  */
682
  if (*secname == '\$')
683
    einfo ("%P%F: section %s has '\$' as first character\n", secname);
684
  if (strchr (secname + 1, '\$') == NULL)
685
    return NULL;
686
 
687
  /* Look up the output section.  The Microsoft specs say sections names in
688
     image files never contain a '\$'.  Fortunately, lang_..._lookup creates
689
     the section if it doesn't exist.  */
690
  output_secname = xstrdup (secname);
691
  ps = strchr (output_secname + 1, '\$');
692
  *ps = 0;
693
  os = lang_output_section_statement_lookup (output_secname, constraint, TRUE);
694
 
695
  /* Find the '\$' wild statement for this section.  We currently require the
696
     linker script to explicitly mention "*(.foo\$)".
697
     FIXME: ppcpe.sc has .CRT\$foo in the .rdata section.  According to the
698
     Microsoft docs this isn't correct so it's not (currently) handled.  */
699
 
700
  ps[0] = '\$';
701
  ps[1] = 0;
702
  for (l = os->children.head; l; l = l->header.next)
703
    if (l->header.type == lang_wild_statement_enum)
704
      {
705
        struct wildcard_list *sec;
706
 
707
        for (sec = l->wild_statement.section_list; sec; sec = sec->next)
708
          if (sec->spec.name && strcmp (sec->spec.name, output_secname) == 0)
709
            break;
710
        if (sec)
711
          break;
712
      }
713
  ps[0] = 0;
714
  if (l == NULL)
715
    einfo ("%P%F: *(%s\$) missing from linker script\n", output_secname);
716
 
717
  /* Link the input section in and we're done for now.
718
     The sections still have to be sorted, but that has to wait until
719
     all such sections have been processed by us.  The sorting is done by
720
     sort_sections.  */
721
  lang_add_section (&l->wild_statement.children, s, os);
722
 
723
  return os;
724
}
725
 
726
static char *
727
gld_${EMULATION_NAME}_get_script (int *isfile)
728
EOF
729
# Scripts compiled in.
730
# sed commands to quote an ld script as a C string.
731
sc="-f stringify.sed"
732
 
733
fragment <
734
{
735
  *isfile = 0;
736
 
737
  if (link_info.relocatable && config.build_constructors)
738
    return
739
EOF
740
sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
741
echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
742
sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
743
echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
744
sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
745
echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
746
sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
747
echo '  ; else return'                                 >> e${EMULATION_NAME}.c
748
sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
749
echo '; }'                                             >> e${EMULATION_NAME}.c
750
 
751
fragment <
752
 
753
 
754
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
755
{
756
  gld_${EMULATION_NAME}_before_parse,
757
  syslib_default,
758
  hll_default,
759
  after_parse_default,
760
  gld_${EMULATION_NAME}_after_open,
761
  after_allocation_default,
762
  set_output_arch_default,
763
  ldemul_default_target,
764
  gld_${EMULATION_NAME}_before_allocation,
765
  gld_${EMULATION_NAME}_get_script,
766
  "${EMULATION_NAME}",
767
  "${OUTPUT_FORMAT}",
768
  finish_default,
769
  NULL, /* create output section statements */
770
  NULL, /* open dynamic archive */
771
  gld${EMULATION_NAME}_place_orphan,
772
  gld_${EMULATION_NAME}_set_symbols,
773
  NULL, /* parse_args */
774
  gld${EMULATION_NAME}_add_options,
775
  gld${EMULATION_NAME}_handle_option,
776
  NULL, /* unrecognized file */
777
  NULL, /* list options */
778
  NULL, /* recognized file */
779
  NULL, /* find_potential_libraries */
780
  NULL  /* new_vers_pattern */
781
};
782
EOF

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