aboutsummaryrefslogtreecommitdiff
path: root/ld/emultempl/pe.em
blob: 6ad4b20ec808009ce2320e9e2b461d840fa5ba16 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
# This shell script emits a C file. -*- C -*-
# It does some substitutions.
cat >e${EMULATION_NAME}.c <<EOF
/* This file is part of GLD, the Gnu Linker.
   Copyright 1995, 96, 97, 1998 Free Software Foundation, Inc.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

/* For WINDOWS_NT */
/* The original file generated returned different default scripts depending
   on whether certain switches were set, but these switches pertain to the
   Linux system and that particular version of coff.  In the NT case, we
   only determine if the subsystem is console or windows in order to select
   the correct entry point by default. */ 
  
#include "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
#include "getopt.h"
#include "libiberty.h"
#include "ld.h"
#include "ldmain.h"
#include "ldgram.h"
#include "ldexp.h"
#include "ldlang.h"
#include "ldemul.h"
#include "ldlex.h"
#include "ldmisc.h"
#include "ldctor.h"
#include "ldfile.h"
#include "coff/internal.h"
#include "../bfd/libcoff.h"
#include "deffile.h"

#define TARGET_IS_${EMULATION_NAME}

static void gld_${EMULATION_NAME}_set_symbols PARAMS ((void));
static void gld_${EMULATION_NAME}_after_open PARAMS ((void));
static void gld_${EMULATION_NAME}_before_parse PARAMS ((void));
static void gld_${EMULATION_NAME}_after_parse PARAMS ((void));
static void gld_${EMULATION_NAME}_before_allocation PARAMS ((void));
static boolean gld_${EMULATION_NAME}_place_orphan
  PARAMS ((lang_input_statement_type *, asection *));
static void gld${EMULATION_NAME}_place_section
  PARAMS ((lang_statement_union_type *));
static char *gld_${EMULATION_NAME}_get_script PARAMS ((int *));
static int gld_${EMULATION_NAME}_parse_args PARAMS ((int, char **));

static struct internal_extra_pe_aouthdr pe;
static int dll;
static int support_old_code = 0;
extern def_file *pe_def_file;
static lang_assignment_statement_type *image_base_statement = 0;

static char *pe_out_def_filename = 0;
extern int pe_dll_export_everything;
extern int pe_dll_kill_ats;
extern int pe_dll_stdcall_aliases;
static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable */
static char *pe_implib_filename = 0;

extern const char *output_filename;

static void
gld_${EMULATION_NAME}_before_parse()
{
  output_filename = "a.exe";
  ldfile_output_architecture = bfd_arch_${ARCH};
#ifdef TARGET_IS_i386pe
  config.has_shared = 1;
#endif
}

/* PE format extra command line options.  */

/* Used for setting flags in the PE header. */
#define OPTION_BASE_FILE		(300  + 1)
#define OPTION_DLL			(OPTION_BASE_FILE + 1)
#define OPTION_FILE_ALIGNMENT		(OPTION_DLL + 1)
#define OPTION_IMAGE_BASE		(OPTION_FILE_ALIGNMENT + 1)
#define OPTION_MAJOR_IMAGE_VERSION	(OPTION_IMAGE_BASE + 1)
#define OPTION_MAJOR_OS_VERSION		(OPTION_MAJOR_IMAGE_VERSION + 1)
#define OPTION_MAJOR_SUBSYSTEM_VERSION	(OPTION_MAJOR_OS_VERSION + 1)
#define OPTION_MINOR_IMAGE_VERSION	(OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
#define OPTION_MINOR_OS_VERSION		(OPTION_MINOR_IMAGE_VERSION + 1)
#define OPTION_MINOR_SUBSYSTEM_VERSION	(OPTION_MINOR_OS_VERSION + 1)
#define OPTION_SECTION_ALIGNMENT	(OPTION_MINOR_SUBSYSTEM_VERSION + 1)
#define OPTION_STACK                    (OPTION_SECTION_ALIGNMENT + 1)
#define OPTION_SUBSYSTEM                (OPTION_STACK + 1)
#define OPTION_HEAP			(OPTION_SUBSYSTEM + 1)
#define OPTION_SUPPORT_OLD_CODE		(OPTION_HEAP + 1)
#define OPTION_OUT_DEF			(OPTION_SUPPORT_OLD_CODE + 1)
#define OPTION_EXPORT_ALL		(OPTION_OUT_DEF + 1)
#define OPTION_EXCLUDE_SYMBOLS		(OPTION_EXPORT_ALL + 1)
#define OPTION_KILL_ATS			(OPTION_EXCLUDE_SYMBOLS + 1)
#define OPTION_STDCALL_ALIASES		(OPTION_KILL_ATS + 1)
#define OPTION_ENABLE_STDCALL_FIXUP	(OPTION_STDCALL_ALIASES + 1)
#define OPTION_DISABLE_STDCALL_FIXUP	(OPTION_ENABLE_STDCALL_FIXUP + 1)
#define OPTION_IMPLIB_FILENAME		(OPTION_DISABLE_STDCALL_FIXUP + 1)

static struct option longopts[] =
{
  /* PE options */
  {"base-file", required_argument, NULL, OPTION_BASE_FILE},
  {"dll", no_argument, NULL, OPTION_DLL},
  {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
  {"heap", required_argument, NULL, OPTION_HEAP}, 
  {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
  {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
  {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
  {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
  {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
  {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
  {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
  {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
  {"stack", required_argument, NULL, OPTION_STACK},
  {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
  {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
#ifdef TARGET_IS_i386pe
  /* getopt allows abbreviations, so we do this to stop it from treating -o
     as an abbreviation for this option */
  {"output-def", required_argument, NULL, OPTION_OUT_DEF},
  {"output-def", required_argument, NULL, OPTION_OUT_DEF},
  {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
  {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
  {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
  {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
  {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
  {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
  {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
#endif
  {NULL, no_argument, NULL, 0}
};


/* PE/WIN32; added routines to get the subsystem type, heap and/or stack
   parameters which may be input from the command line */

typedef struct
{
  void *ptr;
  int size;
  int value;
  char *symbol;
  int inited;
} definfo;

#define D(field,symbol,def)  {&pe.field,sizeof(pe.field), def, symbol,0}

static definfo init[] =
{
  /* imagebase must be first */
#define IMAGEBASEOFF 0
  D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
#define DLLOFF 1
  {&dll, sizeof(dll), 0, "__dll__"},
  D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
  D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
  D(MajorOperatingSystemVersion,"__major_os_version__", 4),
  D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
  D(MajorImageVersion,"__major_image_version__", 1),
  D(MinorImageVersion,"__minor_image_version__", 0),
  D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
  D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
  D(Subsystem,"__subsystem__", 3),
  D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000),
  D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
  D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
  D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
  D(LoaderFlags,"__loader_flags__", 0x0),
  { NULL, 0, 0, NULL, 0 }
};

static void
gld_${EMULATION_NAME}_list_options (file)
     FILE * file;
{
  fprintf (file, _("  --base_file <basefile>             Generate a base file for relocatable DLLs\n"));
  fprintf (file, _("  --dll                              Set image base to the default for DLLs\n"));
  fprintf (file, _("  --file-alignment <size>            Set file alignment\n"));
  fprintf (file, _("  --heap <size>                      Set initial size of the heap\n"));
  fprintf (file, _("  --image-base <address>             Set start address of the executable\n"));
  fprintf (file, _("  --major-image-version <number>     Set version number of the executable\n"));
  fprintf (file, _("  --major-os-version <number>        Set minimum required OS version\n"));
  fprintf (file, _("  --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
  fprintf (file, _("  --minor-image-version <number>     Set revision number of the executable\n"));
  fprintf (file, _("  --minor-os-version <number>        Set minimum required OS revision\n"));
  fprintf (file, _("  --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
  fprintf (file, _("  --section-alignment <size>         Set section alignment\n"));
  fprintf (file, _("  --stack <size>                     Set size of the initial stack\n"));
  fprintf (file, _("  --subsystem <name>[:<version>]     Set required OS subsystem [& version]\n"));
  fprintf (file, _("  --support-old-code                 Support interworking with old code\n"));
#ifdef TARGET_IS_i386pe
  fprintf (file, _("  --add-stdcall-alias                Export symbols with and without @nn\n"));
  fprintf (file, _("  --disable-stdcall-fixup            Don't link _sym to _sym@nn\n"));
  fprintf (file, _("  --enable-stdcall-fixup             Link _sym to _sym@nn without warnings\n"));
  fprintf (file, _("  --exclude-symbols sym,sym,...      Exclude symbols from automatic export\n"));
  fprintf (file, _("  --export-all-symbols               Automatically export all globals to DLL\n"));
  fprintf (file, _("  --kill-at                          Remove @nn from exported symbols\n"));
  fprintf (file, _("  --out-implib <file>                Generate import library\n"));
  fprintf (file, _("  --output-def <file>                Generate a .DEF file for the built DLL\n"));
#endif
}

static void
set_pe_name (name, val)
     char *name;
     long val;
{
  int i;
  /* Find the name and set it. */
  for (i = 0; init[i].ptr; i++)
    {
      if (strcmp (name, init[i].symbol) == 0)
	{
	  init[i].value = val;
	  init[i].inited = 1;
	  return;
	}
    }
  abort();
}


static void
set_pe_subsystem ()
{
  const char *sver;
  int len;
  int i;
  static const struct 
    {
      const char *name;
      const int value;
      const char *entry;
    }
  v[] =
    {
      { "native", 1, "_NtProcessStartup" },
      { "windows", 2, "_WinMainCRTStartup" },
      { "console", 3, "_mainCRTStartup" },
#if 0
      /* The Microsoft linker does not recognize this.  */
      { "os2", 5, "" },
#endif
      { "posix", 7, "___PosixProcessStartup"},
      { 0, 0, 0 }
    };

  sver = strchr (optarg, ':');
  if (sver == NULL)
    len = strlen (optarg);
  else
    {
      char *end;

      len = sver - optarg;
      set_pe_name ("__major_subsystem_version__",
		   strtoul (sver + 1, &end, 0));
      if (*end == '.')
	set_pe_name ("__minor_subsystem_version__",
		     strtoul (end + 1, &end, 0));
      if (*end != '\0')
	einfo (_("%P: warning: bad version number in -subsystem option\n"));
    }

  for (i = 0; v[i].name; i++)
    {
      if (strncmp (optarg, v[i].name, len) == 0
	  && v[i].name[len] == '\0')
	{
	  set_pe_name ("__subsystem__", v[i].value);

	  lang_add_entry (v[i].entry, 1);

	  return;
	}
    }
  
  einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
}



static void
set_pe_value (name)
     char *name;
     
{
  char *end;
  
  set_pe_name (name,  strtoul (optarg, &end, 0));
  
  if (end == optarg)
    einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);

  optarg = end;
}

static void
set_pe_stack_heap (resname, comname)
     char *resname;
     char *comname;
{
  set_pe_value (resname);
  
  if (*optarg == ',')
    {
      optarg++;
      set_pe_value (comname);
    }
  else if (*optarg)
    einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
}



static int
gld_${EMULATION_NAME}_parse_args(argc, argv)
     int argc;
     char **argv;
{
  int longind;
  int optc;
  int prevoptind = optind;
  int prevopterr = opterr;
  int wanterror;
  static int lastoptind = -1;

  if (lastoptind != optind)
    opterr = 0;
  wanterror = opterr;

  lastoptind = optind;

  optc = getopt_long_only (argc, argv, "-", longopts, &longind);
  opterr = prevopterr;

  switch (optc)
    {
    default:
      if (wanterror)
	xexit (1);
      optind =  prevoptind;
      return 0;

    case OPTION_BASE_FILE:
      link_info.base_file = (PTR) fopen (optarg, FOPEN_WB);
      if (link_info.base_file == NULL)
	{
	  /* xgettext:c-format */
	  fprintf (stderr, _("%s: Can't open base file %s\n"),
		   program_name, optarg);
	  xexit (1);
	}
      break;

      /* PE options */
    case OPTION_HEAP: 
      set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
      break;
    case OPTION_STACK: 
      set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
      break;
    case OPTION_SUBSYSTEM:
      set_pe_subsystem ();
      break;
    case OPTION_MAJOR_OS_VERSION:
      set_pe_value ("__major_os_version__");
      break;
    case OPTION_MINOR_OS_VERSION:
      set_pe_value ("__minor_os_version__");
      break;
    case OPTION_MAJOR_SUBSYSTEM_VERSION:
      set_pe_value ("__major_subsystem_version__");
      break;
    case OPTION_MINOR_SUBSYSTEM_VERSION:
      set_pe_value ("__minor_subsystem_version__");
      break;
    case OPTION_MAJOR_IMAGE_VERSION:
      set_pe_value ("__major_image_version__");
      break;
    case OPTION_MINOR_IMAGE_VERSION:
      set_pe_value ("__minor_image_version__");
      break;
    case OPTION_FILE_ALIGNMENT:
      set_pe_value ("__file_alignment__");
      break;
    case OPTION_SECTION_ALIGNMENT:
      set_pe_value ("__section_alignment__");
      break;
    case OPTION_DLL:
      set_pe_name ("__dll__", 1);
      break;
    case OPTION_IMAGE_BASE:
      set_pe_value ("__image_base__");
      break;
    case OPTION_SUPPORT_OLD_CODE:
      support_old_code = 1;
      break;
    case OPTION_OUT_DEF:
      pe_out_def_filename = xstrdup (optarg);
      break;
    case OPTION_EXPORT_ALL:
      pe_dll_export_everything = 1;
      break;
    case OPTION_EXCLUDE_SYMBOLS:
#ifdef TARGET_IS_i386pe
      pe_dll_add_excludes (optarg);
#endif
      break;
    case OPTION_KILL_ATS:
      pe_dll_kill_ats = 1;
      break;
    case OPTION_STDCALL_ALIASES:
      pe_dll_stdcall_aliases = 1;
      break;
    case OPTION_ENABLE_STDCALL_FIXUP:
      pe_enable_stdcall_fixup = 1;
      break;
    case OPTION_DISABLE_STDCALL_FIXUP:
      pe_enable_stdcall_fixup = 0;
      break;
    case OPTION_IMPLIB_FILENAME:
      pe_implib_filename = xstrdup (optarg);
      break;
    }
  return 1;
}

/* Assign values to the special symbols before the linker script is
   read.  */

static void
gld_${EMULATION_NAME}_set_symbols ()
{
  /* Run through and invent symbols for all the
     names and insert the defaults. */
  int j;
  lang_statement_list_type *save;

  if (!init[IMAGEBASEOFF].inited)
    {
      if (link_info.relocateable)
	init[IMAGEBASEOFF].value = 0;
      else if (init[DLLOFF].value || link_info.shared)
	init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
      else
	init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
    }

  /* Don't do any symbol assignments if this is a relocateable link.  */
  if (link_info.relocateable)
    return;

  /* Glue the assignments into the abs section */
  save = stat_ptr;

  stat_ptr = &(abs_output_section->children);

  for (j = 0; init[j].ptr; j++)
    {
      long val = init[j].value;
      lang_assignment_statement_type *rv;
      rv = lang_add_assignment (exp_assop ('=' ,init[j].symbol, exp_intop (val)));
      if (init[j].size == sizeof(short))
	*(short *)init[j].ptr = val;
      else if (init[j].size == sizeof(int))
	*(int *)init[j].ptr = val;
      else if (init[j].size == sizeof(long))
	*(long *)init[j].ptr = val;
      /* This might be a long long or other special type.  */
      else if (init[j].size == sizeof(bfd_vma))
	*(bfd_vma *)init[j].ptr = val;
      else	abort();
      if (j == IMAGEBASEOFF)
	image_base_statement = rv;
    }
  /* Restore the pointer. */
  stat_ptr = save;
  
  if (pe.FileAlignment >
      pe.SectionAlignment)
    {
      einfo (_("%P: warning, file alignment > section alignment.\n"));
    }
}

/* This is called after the linker script and the command line options
   have been read.  */

static void
gld_${EMULATION_NAME}_after_parse ()
{
  /* The Windows libraries are designed for the linker to treat the
     entry point as an undefined symbol.  Otherwise, the .obj that
     defines mainCRTStartup is brought in because it is the first
     encountered in libc.lib and it has other symbols in it which will
     be pulled in by the link process.  To avoid this, we act as
     though the user specified -u with the entry point symbol.

     This function is called after the linker script and command line
     options have been read, so at this point we know the right entry
     point.  This function is called before the input files are
     opened, so registering the symbol as undefined will make a
     difference.  */

  if (entry_symbol)
    ldlang_add_undef (entry_symbol);
}

static struct bfd_link_hash_entry *pe_undef_found_sym;

static boolean
pe_undef_cdecl_match (h, string)
  struct bfd_link_hash_entry *h;
  PTR string;
{
  int sl = strlen (string);
  if (h->type == bfd_link_hash_defined
      && strncmp (h->root.string, string, sl) == 0
      && h->root.string[sl] == '@')
  {
    pe_undef_found_sym = h;
    return false;
  }
  return true;
}

static void
pe_fixup_stdcalls ()
{
  static int gave_warning_message = 0;
  struct bfd_link_hash_entry *undef, *sym;
  char *at;
  for (undef = link_info.hash->undefs; undef; undef=undef->next)
    if (undef->type == bfd_link_hash_undefined)
    {
      at = strchr (undef->root.string, '@');
      if (at)
      {
	/* The symbol is a stdcall symbol, so let's look for a cdecl
	   symbol with the same name and resolve to that */
	char *cname = xstrdup (undef->root.string);
	at = strchr (cname, '@');
	*at = 0;
	sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
	if (sym && sym->type == bfd_link_hash_defined)
	{
	  undef->type = bfd_link_hash_defined;
	  undef->u.def.value = sym->u.def.value;
	  undef->u.def.section = sym->u.def.section;
	  if (pe_enable_stdcall_fixup == -1)
	    {
	      einfo (_("Warning: resolving %s by linking to %s\n"),
		     undef->root.string, cname);
	      if (! gave_warning_message)
		{
		  gave_warning_message = 1;
		  einfo(_("Use --enable-stdcall-fixup to disable these warnings\n"));
		  einfo(_("Use --disable-stdcall-fixup to disable these fixups\n"));
		}
	    }
	}
      }
      else
      {
	/* The symbol is a cdecl symbol, so we look for stdcall
	   symbols - which means scanning the whole symbol table */
	pe_undef_found_sym = 0;
	bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
				(PTR) undef->root.string);
	sym = pe_undef_found_sym;
	if (sym)
	{
	  undef->type = bfd_link_hash_defined;
	  undef->u.def.value = sym->u.def.value;
	  undef->u.def.section = sym->u.def.section;
	  if (pe_enable_stdcall_fixup == -1)
	    {
	      einfo (_("Warning: resolving %s by linking to %s\n"),
		     undef->root.string, sym->root.string);
	      if (! gave_warning_message)
		{
		  gave_warning_message = 1;
		  einfo(_("Use --enable-stdcall-fixup to disable these warnings\n"));
		  einfo(_("Use --disable-stdcall-fixup to disable these fixups\n"));
		}
	    }
	}
      }
    }
}

static void
gld_${EMULATION_NAME}_after_open ()
{
  /* Pass the wacky PE command line options into the output bfd.
     FIXME: This should be done via a function, rather than by
     including an internal BFD header.  */
  
  if (!coff_data (output_bfd)->pe)
    einfo (_("%F%P: PE operations on non PE file.\n"));

  pe_data (output_bfd)->pe_opthdr = pe;
  pe_data (output_bfd)->dll = init[DLLOFF].value;

#ifdef TARGET_IS_i386pe
  if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
    pe_fixup_stdcalls ();

  pe_process_import_defs(output_bfd, &link_info);
  if (link_info.shared)
    pe_dll_build_sections (output_bfd, &link_info);
#endif

#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
  {
    /* Find a BFD that can hold the interworking stubs.  */
    LANG_FOR_EACH_INPUT_STATEMENT (is)
      {
	if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
	  break;
      }
  }
#endif
}

static void  
gld_${EMULATION_NAME}_before_allocation()
{
#ifdef TARGET_IS_ppcpe
  /* Here we rummage through the found bfds to collect toc information */
  {
    LANG_FOR_EACH_INPUT_STATEMENT (is)
      {
	if (!ppc_process_before_allocation (is->the_bfd, &link_info))
	  {
	    /* xgettext:c-format */
	    einfo (_("Errors encountered processing file %s\n"), is->filename);
	  }
      }
  }

  /* We have seen it all. Allocate it, and carry on */
  ppc_allocate_toc_section (&link_info);
#endif /* TARGET_IS_ppcpe */

#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
  /* FIXME: we should be able to set the size of the interworking stub
     section.

     Here we rummage through the found bfds to collect glue
     information.  FIXME: should this be based on a command line
     option?  krk@cygnus.com */
  {
    LANG_FOR_EACH_INPUT_STATEMENT (is)
      {
	if (! bfd_arm_process_before_allocation
	    (is->the_bfd, & link_info, support_old_code))
	  {
	    /* xgettext:c-format */
	    einfo (_("Errors encountered processing file %s for interworking"),
		   is->filename);
	  }
      }
  }

  /* We have seen it all. Allocate it, and carry on */
  bfd_arm_allocate_interworking_sections (& link_info);
#endif /* TARGET_IS_armpe */
}


/* This is called when an input file isn't recognized as a BFD.  We
   check here for .DEF files and pull them in automatically. */

static int
saw_option(char *option)
{
  int i;
  for (i=0; init[i].ptr; i++)
    if (strcmp (init[i].symbol, option) == 0)
      return init[i].inited;
  return 0;
}

static boolean
gld_${EMULATION_NAME}_unrecognized_file(entry)
  lang_input_statement_type *entry;
{
#ifdef TARGET_IS_i386pe
  const char *ext = entry->filename + strlen (entry->filename) - 4;

  if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
  {
    if (pe_def_file == 0)
      pe_def_file = def_file_empty ();
    def_file_parse (entry->filename, pe_def_file);
    if (pe_def_file)
    {
      int i, buflen=0, len;
      char *buf;
      for (i=0; i<pe_def_file->num_exports; i++)
	{
	  len = strlen(pe_def_file->exports[i].internal_name);
	  if (buflen < len+2)
	    buflen = len+2;
	}
      buf = (char *) xmalloc (buflen);
      for (i=0; i<pe_def_file->num_exports; i++)
	{
	  struct bfd_link_hash_entry *h;
	  sprintf(buf, "_%s", pe_def_file->exports[i].internal_name);

	  h = bfd_link_hash_lookup (link_info.hash, buf, true, true, true);
	  if (h == (struct bfd_link_hash_entry *) NULL)
	    einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
	  if (h->type == bfd_link_hash_new)
	    {
	      h->type = bfd_link_hash_undefined;
	      h->u.undef.abfd = NULL;
	      bfd_link_add_undef (link_info.hash, h);
	    }
	}
      free (buf);

      /* def_file_print (stdout, pe_def_file); */
      if (pe_def_file->is_dll == 1)
	link_info.shared = 1;

      if (pe_def_file->base_address != (bfd_vma)(-1))
      {
	pe.ImageBase =
	pe_data (output_bfd)->pe_opthdr.ImageBase =
	init[IMAGEBASEOFF].value = pe_def_file->base_address;
	init[IMAGEBASEOFF].inited = 1;
	if (image_base_statement)
	  image_base_statement->exp =
	    exp_assop ('=', "__image_base__", exp_intop (pe.ImageBase));
      }

#if 0
      /* Not sure if these *should* be set */
      if (pe_def_file->version_major != -1)
      {
	pe.MajorImageVersion = pe_def_file->version_major;
	pe.MinorImageVersion = pe_def_file->version_minor;
      }
#endif
      if (pe_def_file->stack_reserve != -1
	  && ! saw_option ("__size_of_stack_reserve__"))
      {
	pe.SizeOfStackReserve = pe_def_file->stack_reserve;
	if (pe_def_file->stack_commit != -1)
	  pe.SizeOfStackCommit = pe_def_file->stack_commit;
      }
      if (pe_def_file->heap_reserve != -1
	  && ! saw_option ("__size_of_heap_reserve__"))
      {
	pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
	if (pe_def_file->heap_commit != -1)
	  pe.SizeOfHeapCommit = pe_def_file->heap_commit;
      }
      return true;
    }
  }
#endif
  return false;
  
}

static boolean
gld_${EMULATION_NAME}_recognized_file(entry)
  lang_input_statement_type *entry;
{
#ifdef TARGET_IS_i386pe
  if (bfd_get_format (entry->the_bfd) == bfd_object)
    {
      const char *ext = entry->filename + strlen (entry->filename) - 4;
      if (strcmp (ext, ".dll") == 0 || strcmp (ext, ".DLL") == 0)
	return pe_implied_import_dll (entry->filename);
    }
#endif
  return false;
}

static void
gld_${EMULATION_NAME}_finish ()
{
#ifdef TARGET_IS_i386pe
  if (link_info.shared)
    {
      pe_dll_fill_sections (output_bfd, &link_info);
      if (pe_implib_filename)
	pe_dll_generate_implib (pe_def_file, pe_implib_filename);
    }
  if (pe_out_def_filename)
    pe_dll_generate_def_file (pe_out_def_filename);
#endif
}


/* Place an orphan section.

   We use this to put sections in a reasonable place in the file, and
   to ensure that they are aligned as required.

   We handle grouped sections here as well.  A section named .foo$nn
   goes into the output section .foo.  All grouped sections are sorted
   by name.

   Grouped sections for the default sections are handled by the
   default linker script using wildcards, and are sorted by
   sort_sections.  */

static asection *hold_section;
static char *hold_section_name;
static lang_output_section_statement_type *hold_use;
static lang_output_section_statement_type *hold_text;
static lang_output_section_statement_type *hold_rdata;
static lang_output_section_statement_type *hold_data;
static lang_output_section_statement_type *hold_bss;

/* Place an orphan section.  We use this to put random SHF_ALLOC
   sections in the right segment.  */

/*ARGSUSED*/
static boolean
gld_${EMULATION_NAME}_place_orphan (file, s)
     lang_input_statement_type *file;
     asection *s;
{
  const char *secname;
  char *dollar;

  if ((s->flags & SEC_ALLOC) == 0)
    return false;

  secname = bfd_get_section_name (s->owner, s);

  /* Look through the script to see where to place this section.  */

  hold_section = s;

  hold_section_name = xstrdup (secname);
  dollar = strchr (hold_section_name, '$');
  if (dollar != NULL)
    *dollar = '\0';

  hold_use = NULL;
  lang_for_each_statement (gld${EMULATION_NAME}_place_section);

  if (hold_use == NULL)
    {
      lang_output_section_statement_type *place;
      char *outsecname;
      asection *snew, **pps;
      lang_statement_list_type *old;
      lang_statement_list_type add;
      etree_type *address;

      /* Try to put the new output section in a reasonable place based
	 on the section name and section flags.  */
      place = NULL;
      if ((s->flags & SEC_HAS_CONTENTS) == 0
	  && hold_bss != NULL)
	place = hold_bss;
      else if ((s->flags & SEC_READONLY) == 0
	       && hold_data != NULL)
	place = hold_data;
      else if ((s->flags & SEC_CODE) == 0
	       && (s->flags & SEC_READONLY) != 0
	       && hold_rdata != NULL)
	place = hold_rdata;
      else if ((s->flags & SEC_READONLY) != 0
	       && hold_text != NULL)
	place = hold_text;

      /* Choose a unique name for the section.  This will be needed if
	 the same section name appears in the input file with
	 different loadable or allocateable characteristics.  */
      outsecname = xstrdup (hold_section_name);
      if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
	{
	  unsigned int len;
	  char *newname;
	  unsigned int i;

	  len = strlen (outsecname);
	  newname = xmalloc (len + 5);
	  strcpy (newname, outsecname);
	  i = 0;
	  do
	    {
	      sprintf (newname + len, "%d", i);
	      ++i;
	    }
	  while (bfd_get_section_by_name (output_bfd, newname) != NULL);

	  free (outsecname);
	  outsecname = newname;
	}

      /* We don't want to free OUTSECNAME, as it may get attached to
	 the output section statement.  */

      /* Create the section in the output file, and put it in the
	 right place.  This shuffling is to make the output file look
	 neater.  */
      snew = bfd_make_section (output_bfd, outsecname);
      if (snew == NULL)
	einfo ("%P%F: output format %s cannot represent section called %s\n",
	       output_bfd->xvec->name, outsecname);
      if (place != NULL && place->bfd_section != NULL)
	{
	  for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
	    ;
	  *pps = snew->next;
	  snew->next = place->bfd_section->next;
	  place->bfd_section->next = snew;
	}

      /* Start building a list of statements for this section.  */
      old = stat_ptr;
      stat_ptr = &add;
      lang_list_init (stat_ptr);

      if (link_info.relocateable)
	address = NULL;
      else
	{
	  /* All sections in an executable must be aligned to a page
	     boundary.  */
	  address = exp_unop (ALIGN_K,
			      exp_nameop (NAME, "__section_alignment__"));
	}

      lang_enter_output_section_statement (outsecname, address, 0,
					   (bfd_vma) 0,
					   (etree_type *) NULL,
					   (etree_type *) NULL,
					   (etree_type *) NULL);

      hold_use = lang_output_section_statement_lookup (outsecname);

      lang_leave_output_section_statement
	((bfd_vma) 0, "*default*",
	 (struct lang_output_section_phdr_list *) NULL);

      /* Now stick the new statement list right after PLACE.  */
      if (place != NULL)
	{
	  *add.tail = place->header.next;
	  place->header.next = add.head;
	}

      stat_ptr = old;
    }

  if (dollar == NULL)
    wild_doit (&hold_use->children, s, hold_use, file);
  else
    {
      lang_statement_union_type **pl;
      boolean found_dollar;
      lang_statement_list_type list;

      /* The section name has a '$'.  Sort it with the other '$'
         sections.  */

      found_dollar = false;
      for (pl = &hold_use->children.head; *pl != NULL; pl = &(*pl)->next)
	{
	  lang_input_section_type *ls;
	  const char *lname;

	  if ((*pl)->header.type != lang_input_section_enum)
	    continue;

	  ls = &(*pl)->input_section;

	  lname = bfd_get_section_name (ls->ifile->the_bfd, ls->section);
	  if (strchr (lname, '$') == NULL)
	    {
	      if (found_dollar)
		break;
	    }
	  else
	    {
	      found_dollar = true;
	      if (strcmp (secname, lname) < 0)
		break;
	    }
	}

      lang_list_init (&list);
      wild_doit (&list, s, hold_use, file);
      if (list.head != NULL)
	{
	  ASSERT (list.head->next == NULL);
	  list.head->next = *pl;
	  *pl = list.head;
	}
    }

  free (hold_section_name);

  return true;
}

static void
gld${EMULATION_NAME}_place_section (s)
     lang_statement_union_type *s;
{
  lang_output_section_statement_type *os;

  if (s->header.type != lang_output_section_statement_enum)
    return;

  os = &s->output_section_statement;

  if (strcmp (os->name, hold_section_name) == 0
      && os->bfd_section != NULL
      && ((hold_section->flags & (SEC_LOAD | SEC_ALLOC))
	  == (os->bfd_section->flags & (SEC_LOAD | SEC_ALLOC))))
    hold_use = os;

  if (strcmp (os->name, ".text") == 0)
    hold_text = os;
  else if (strcmp (os->name, ".rdata") == 0)
    hold_rdata = os;
  else if (strcmp (os->name, ".data") == 0)
    hold_data = os;
  else if (strcmp (os->name, ".bss") == 0)
    hold_bss = os;
}

static char *
gld_${EMULATION_NAME}_get_script(isfile)
     int *isfile;
EOF
# Scripts compiled in.
# sed commands to quote an ld script as a C string.
sc="-f ${srcdir}/emultempl/stringify.sed"

cat >>e${EMULATION_NAME}.c <<EOF
{			     
  *isfile = 0;

  if (link_info.relocateable == true && config.build_constructors == true)
    return
EOF
sed $sc ldscripts/${EMULATION_NAME}.xu                     >> e${EMULATION_NAME}.c
echo '  ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xr                     >> e${EMULATION_NAME}.c
echo '  ; else if (!config.text_read_only) return'         >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xbn                    >> e${EMULATION_NAME}.c
echo '  ; else if (!config.magic_demand_paged) return'     >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xn                     >> e${EMULATION_NAME}.c
echo '  ; else return'                                     >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.x                      >> e${EMULATION_NAME}.c
echo '; }'                                                 >> e${EMULATION_NAME}.c

cat >>e${EMULATION_NAME}.c <<EOF


struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = 
{
  gld_${EMULATION_NAME}_before_parse,
  syslib_default,
  hll_default,
  gld_${EMULATION_NAME}_after_parse,
  gld_${EMULATION_NAME}_after_open,
  after_allocation_default,
  set_output_arch_default,
  ldemul_default_target,
  gld_${EMULATION_NAME}_before_allocation,
  gld_${EMULATION_NAME}_get_script,
  "${EMULATION_NAME}",
  "${OUTPUT_FORMAT}",
  gld_${EMULATION_NAME}_finish, /* finish */
  NULL, /* create output section statements */
  NULL, /* open dynamic archive */
  gld_${EMULATION_NAME}_place_orphan,
  gld_${EMULATION_NAME}_set_symbols,
  gld_${EMULATION_NAME}_parse_args,
  gld_${EMULATION_NAME}_unrecognized_file,
  gld_${EMULATION_NAME}_list_options,
  gld_${EMULATION_NAME}_recognized_file
};
EOF