aboutsummaryrefslogtreecommitdiff
path: root/ld/emultempl/aix.em
blob: c39491eab436299cc103eecb9477c519c7066404 (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
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
# This shell script emits a C file. -*- C -*-
# It does some substitutions.
if [ -z "$MACHINE" ]; then
  OUTPUT_ARCH=${ARCH}
else
  OUTPUT_ARCH=${ARCH}:${MACHINE}
fi
fragment <<EOF
/* This file is is generated by a shell script.  DO NOT EDIT! */

/* AIX emulation code for ${EMULATION_NAME}
   Copyright (C) 1991-2020 Free Software Foundation, Inc.
   Written by Steve Chamberlain <sac@cygnus.com>
   AIX support by Ian Lance Taylor <ian@cygnus.com>
   AIX 64 bit support by Tom Rix <trix@redhat.com>

   This file is part of the GNU Binutils.

   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 3 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., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

#define TARGET_IS_${EMULATION_NAME}

#include "sysdep.h"
#include "bfd.h"
#include "libiberty.h"
#include "safe-ctype.h"
#include "getopt.h"
#include "obstack.h"
#include "bfdlink.h"
#include "ctf-api.h"

#include "ld.h"
#include "ldmain.h"
#include "ldmisc.h"
#include "ldexp.h"
#include "ldlang.h"
#include "ldfile.h"
#include "ldemul.h"
#include "ldctor.h"
#include <ldgram.h>

#include "coff/internal.h"
#include "coff/xcoff.h"
#include "libcoff.h"
#include "libxcoff.h"
#include "xcofflink.h"

static void gld${EMULATION_NAME}_read_file (const char *, bfd_boolean);
static void gld${EMULATION_NAME}_free (void *);
static void gld${EMULATION_NAME}_find_relocs (lang_statement_union_type *);
static void gld${EMULATION_NAME}_find_exp_assignment (etree_type *);


/* The file alignment required for each section.  */
static unsigned long file_align;

/* The maximum size the stack is permitted to grow.  This is stored in
   the a.out header.  */
static unsigned long maxstack;

/* The maximum data size.  This is stored in the a.out header.  */
static unsigned long maxdata;

/* Whether to perform garbage collection.  */
static int gc = 1;

/* The module type to use.  */
static unsigned short modtype = ('1' << 8) | 'L';

/* Whether the .text section must be read-only (i.e., no relocs
   permitted).  */
static int textro;

/* A mask of XCOFF_EXPALL and XCOFF_EXPFULL flags, as set by their
   associated -b and -bno options.  */
static unsigned int auto_export_flags;

/* A mask of auto_export_flags bits that were explicitly set on the
   command line.  */
static unsigned int explicit_auto_export_flags;

/* Whether to implement Unix like linker semantics.  */
static int unix_ld;

/* Structure used to hold import file list.  */

struct filelist
{
  struct filelist *next;
  const char *name;
};

/* List of import files.  */
static struct filelist *import_files;

/* List of export symbols read from the export files.  */

struct export_symbol_list
{
  struct export_symbol_list *next;
  const char *name;
};

static struct export_symbol_list *export_symbols;

/* Maintains the 32 or 64 bit mode state of import file */
static unsigned int symbol_mode = 0x04;

/* Which symbol modes are valid */
static unsigned int symbol_mode_mask = 0x0d;

/* Whether this is a 64 bit link */
static int is_64bit = 0;

/* Which syscalls from import file are valid */
static unsigned int syscall_mask = 0x77;

/* fake file for -binitfini support */
static lang_input_statement_type *initfini_file;

/* Whether to do run time linking
   -brtl enables, -bnortl and -bnortllib disable. */
static int rtld;

/* Explicit command line library path, -blibpath */
static char *command_line_blibpath = NULL;

/* This routine is called before anything else is done.  */

static void
gld${EMULATION_NAME}_before_parse (void)
{
  ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);

  input_flags.dynamic = TRUE;
  config.has_shared = TRUE;

  /* The link_info.[init|fini]_functions are initialized in ld/lexsup.c.
     Override them here so we can use the link_info.init_function as a
     state flag that lets the backend know that -binitfini has been done.  */

  link_info.init_function = NULL;
  link_info.fini_function = NULL;
}

/* Handle AIX specific options.  */

enum
  {
    OPTION_IGNORE = 300,
    OPTION_AUTOIMP,
    OPTION_ERNOTOK,
    OPTION_EROK,
    OPTION_EXPALL,
    OPTION_EXPFULL,
    OPTION_EXPORT,
    OPTION_IMPORT,
    OPTION_INITFINI,
    OPTION_LOADMAP,
    OPTION_MAXDATA,
    OPTION_MAXSTACK,
    OPTION_MODTYPE,
    OPTION_NOAUTOIMP,
    OPTION_NOEXPALL,
    OPTION_NOEXPFULL,
    OPTION_NOSTRCMPCT,
    OPTION_PD,
    OPTION_PT,
    OPTION_STRCMPCT,
    OPTION_UNIX,
    OPTION_32,
    OPTION_64,
    OPTION_LIBPATH,
    OPTION_NOLIBPATH,
  };

static void
gld${EMULATION_NAME}_add_options
  (int ns, char **shortopts, int nl, struct option **longopts,
   int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
{
  static const char xtra_short[] = "D:H:KT:z";
  static const struct option xtra_long[] = {
  /* -binitfini has special handling in the linker backend.  The native linker
     uses the arguemnts to generate a table of init and fini functions for
     the executable.  The important use for this option is to support aix 4.2+
     c++ constructors and destructors.  This is tied into gcc via collect2.c.

     The function table is accessed by the runtime linker/loader by checking if
     the first symbol in the loader symbol table is __rtinit.  The gnu linker
     generates this symbol and makes it the first loader symbol.  */

    {"basis", no_argument, NULL, OPTION_IGNORE},
    {"bautoimp", no_argument, NULL, OPTION_AUTOIMP},
    {"bcomprld", no_argument, NULL, OPTION_IGNORE},
    {"bcrld", no_argument, NULL, OPTION_IGNORE},
    {"bcror31", no_argument, NULL, OPTION_IGNORE},
    {"bD", required_argument, NULL, OPTION_MAXDATA},
    {"bE", required_argument, NULL, OPTION_EXPORT},
    {"bernotok", no_argument, NULL, OPTION_ERNOTOK},
    {"berok", no_argument, NULL, OPTION_EROK},
    {"berrmsg", no_argument, NULL, OPTION_IGNORE},
    {"bexpall", no_argument, NULL, OPTION_EXPALL},
    {"bexpfull", no_argument, NULL, OPTION_EXPFULL},
    {"bexport", required_argument, NULL, OPTION_EXPORT},
    {"bbigtoc", no_argument, NULL, OPTION_IGNORE},
    {"bf", no_argument, NULL, OPTION_ERNOTOK},
    {"bgc", no_argument, &gc, 1},
    {"bh", required_argument, NULL, OPTION_IGNORE},
    {"bhalt", required_argument, NULL, OPTION_IGNORE},
    {"bI", required_argument, NULL, OPTION_IMPORT},
    {"bimport", required_argument, NULL, OPTION_IMPORT},
    {"binitfini", required_argument, NULL, OPTION_INITFINI},
    {"bl", required_argument, NULL, OPTION_LOADMAP},
    {"bloadmap", required_argument, NULL, OPTION_LOADMAP},
    {"bmaxdata", required_argument, NULL, OPTION_MAXDATA},
    {"bmaxstack", required_argument, NULL, OPTION_MAXSTACK},
    {"bM", required_argument, NULL, OPTION_MODTYPE},
    {"bmodtype", required_argument, NULL, OPTION_MODTYPE},
    {"bnoautoimp", no_argument, NULL, OPTION_NOAUTOIMP},
    {"bnoexpall", no_argument, NULL, OPTION_NOEXPALL},
    {"bnoexpfull", no_argument, NULL, OPTION_NOEXPFULL},
    {"bnodelcsect", no_argument, NULL, OPTION_IGNORE},
    {"bnoentry", no_argument, NULL, OPTION_IGNORE},
    {"bnogc", no_argument, &gc, 0},
    {"bnso", no_argument, NULL, OPTION_NOAUTOIMP},
    {"bnostrcmpct", no_argument, NULL, OPTION_NOSTRCMPCT},
    {"bnotextro", no_argument, &textro, 0},
    {"bnro", no_argument, &textro, 0},
    {"bpD", required_argument, NULL, OPTION_PD},
    {"bpT", required_argument, NULL, OPTION_PT},
    {"bro", no_argument, &textro, 1},
    {"brtl", no_argument, &rtld, 1},
    {"bnortl", no_argument, &rtld, 0},
    {"bnortllib", no_argument, &rtld, 0},
    {"bS", required_argument, NULL, OPTION_MAXSTACK},
    {"bso", no_argument, NULL, OPTION_AUTOIMP},
    {"bstrcmpct", no_argument, NULL, OPTION_STRCMPCT},
    {"btextro", no_argument, &textro, 1},
    {"b32", no_argument, NULL, OPTION_32},
    {"b64", no_argument, NULL, OPTION_64},
    {"static", no_argument, NULL, OPTION_NOAUTOIMP},
    {"unix", no_argument, NULL, OPTION_UNIX},
    {"blibpath", required_argument, NULL, OPTION_LIBPATH},
    {"bnolibpath", required_argument, NULL, OPTION_NOLIBPATH},
    {NULL, no_argument, NULL, 0}
  };

  /* Options supported by the AIX linker which we do not support:
     -S, -v, -Z, -bbindcmds, -bbinder, -bbindopts, -bcalls, -bcaps,
     -bcror15, -bdebugopt, -bdbg, -bdelcsect, -bex?, -bfilelist, -bfl,
     -bgcbypass, -bglink, -binsert, -bi, -bloadmap, -bl, -bmap, -bnl,
     -bnobind, -bnocomprld, -bnocrld, -bnoerrmsg, -bnoglink,
     -bnoloadmap, -bnl, -bnoobjreorder, -bnoquiet, -bnoreorder,
     -bnotypchk, -bnox, -bquiet, -bR, -brename, -breorder, -btypchk,
     -bx, -bX, -bxref.  */

  *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
  memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
  *longopts = xrealloc (*longopts,
			nl * sizeof (struct option) + sizeof (xtra_long));
  memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
}

static bfd_boolean
gld${EMULATION_NAME}_parse_args (int argc, char **argv)
{
  int indx;

  /* If the current option starts with -b, change the first : to an =.
     The AIX linker uses : to separate the option from the argument;
     changing it to = lets us treat it as a getopt option.  */
  indx = optind;
  if (indx == 0)
    indx = 1;

  if (indx < argc && CONST_STRNEQ (argv[indx], "-b"))
    {
      char *s;

      for (s = argv[indx]; *s != '\0'; s++)
	{
	  if (*s == ':')
	    {
	      *s = '=';
	      break;
	    }
	}
    }
  return FALSE;
}

/* Helper for option '-f', which specify a list of input files.
   Contrary to the native linker, we don't support shell patterns
   (simply because glob isn't always available).  */

static void
read_file_list (const char *filename)
{
  FILE *f;
  /* An upper bound on the number of characters in the file.  */
  long pos;
  /* File in memory.  */
  char *buffer;
  size_t len;
  char *b;
  char *e;

  f = fopen (filename, FOPEN_RT);
  if (f == NULL)
    {
      einfo (_("%F%P: cannot open %s\n"), filename);
      return;
    }
  if (fseek (f, 0L, SEEK_END) == -1)
    goto error;
  pos = ftell (f);
  if (pos == -1)
    goto error;
  if (fseek (f, 0L, SEEK_SET) == -1)
    goto error;

  buffer = (char *) xmalloc (pos + 1);
  len = fread (buffer, sizeof (char), pos, f);
  if (len != (size_t) pos && ferror (f))
    goto error;
  /* Add a NUL terminator.  */
  buffer[len] = '\0';
  fclose (f);

  /* Parse files.  */
  b = buffer;
  while (1)
    {
      /* Skip empty lines.  */
      while (*b == '\n' || *b == '\r')
	b++;

      /* Stop if end of buffer.  */
      if (b == buffer + len)
	break;

      /* Eat any byte until end of line.  */
      for (e = b; *e != '\0'; e++)
	if (*e == '\n' || *e == '\r')
	  break;

      /* Replace end of line by nul.  */
      if (*e != '\0')
	*e++ = '\0';

      if (b != e)
	lang_add_input_file (b, lang_input_file_is_search_file_enum, NULL);
      b = e;
    }
  return;

 error:
  einfo (_("%F%P: cannot read %s\n"), optarg);
  fclose (f);
}

static bfd_boolean
gld${EMULATION_NAME}_handle_option (int optc)
{
  bfd_signed_vma val;
  const char *end;

  switch (optc)
    {
    default:
      return FALSE;

    case 0:
      /* Long option which just sets a flag.  */
      break;

    case 'f':
      /* This overrides --auxiliary.  This option specifies a file containing
	 a list of input files.  */
      read_file_list (optarg);
      break;

    case 'D':
      val = bfd_scan_vma (optarg, &end, 0);
      if (*end != '\0')
	einfo (_("%P: warning: ignoring invalid -D number %s\n"), optarg);
      else if (val != -1)
	lang_section_start (".data", exp_intop (val), NULL);
      break;

    case 'H':
      val = bfd_scan_vma (optarg, &end, 0);
      if (*end != '\0' || (val & (val - 1)) != 0)
	einfo (_("%P: warning: ignoring invalid -H number %s\n"), optarg);
      else
	file_align = val;
      break;

    case 'K':
    case 'z':
      /* FIXME: This should use the page size for the target system.  */
      file_align = 4096;
      break;

    case 'T':
      /* On AIX this is the same as GNU ld -Ttext.  When we see -T
	 number, we assume the AIX option is intended.  Otherwise, we
	 assume the usual GNU ld -T option is intended.  We can't just
	 ignore the AIX option, because gcc passes it to the linker.  */
      val = bfd_scan_vma (optarg, &end, 0);
      if (*end != '\0')
	return FALSE;
      lang_section_start (".text", exp_intop (val), NULL);
      break;

    case OPTION_IGNORE:
      break;

    case OPTION_INITFINI:
      {
	/*
	 * The aix linker init fini has the format :
	 *
	 * -binitfini:[ Initial][:Termination][:Priority]
	 *
	 * it allows the Termination and Priority to be optional.
	 *
	 * Since we support only one init/fini pair, we ignore the Priority.
	 *
	 * Define the special symbol __rtinit.
	 *
	 * strtok does not correctly handle the case of -binitfini::fini: so
	 * do it by hand
	 */
	char *t, *i, *f;

	i = t = optarg;
	while (*t && ':' != *t)
	  t++;
	if (*t)
	  *t++ = 0;

	if (0 != strlen (i))
	  link_info.init_function = i;

	f = t;
	while (*t && ':' != *t)
	  t++;
	*t = 0;

	if (0 != strlen (f))
	  link_info.fini_function = f;
      }
      break;

    case OPTION_AUTOIMP:
      link_info.static_link = FALSE;
      break;

    case OPTION_ERNOTOK:
      link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
      link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
      break;

    case OPTION_EROK:
      link_info.unresolved_syms_in_objects = RM_IGNORE;
      link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
      break;

    case OPTION_EXPALL:
      auto_export_flags |= XCOFF_EXPALL;
      explicit_auto_export_flags |= XCOFF_EXPALL;
      break;

    case OPTION_EXPFULL:
      auto_export_flags |= XCOFF_EXPFULL;
      explicit_auto_export_flags |= XCOFF_EXPFULL;
      break;

    case OPTION_EXPORT:
      gld${EMULATION_NAME}_read_file (optarg, FALSE);
      break;

    case OPTION_IMPORT:
      {
	struct filelist *n;
	struct filelist **flpp;

	n = (struct filelist *) xmalloc (sizeof (struct filelist));
	n->next = NULL;
	n->name = optarg;
	flpp = &import_files;
	while (*flpp != NULL)
	  flpp = &(*flpp)->next;
	*flpp = n;
      }
      break;

    case OPTION_LOADMAP:
      config.map_filename = optarg;
      break;

    case OPTION_MAXDATA:
      val = bfd_scan_vma (optarg, &end, 0);
      if (*end != '\0')
	einfo (_("%P: warning: ignoring invalid -bmaxdata number %s\n"),
	       optarg);
      else
	maxdata = val;
      break;

    case OPTION_MAXSTACK:
      val = bfd_scan_vma (optarg, &end, 0);
      if (*end != '\0')
	einfo (_("%P: warning: ignoring invalid -bmaxstack number %s\n"),
	       optarg);
      else
	maxstack = val;
      break;

    case OPTION_MODTYPE:
      if (*optarg == 'S')
	{
	  link_info.type = type_dll;
	  ++optarg;
	}
      if (*optarg == '\0' || optarg[1] == '\0')
	einfo (_("%P: warning: ignoring invalid module type %s\n"), optarg);
      else
	modtype = (*optarg << 8) | optarg[1];
      break;

    case OPTION_NOAUTOIMP:
      link_info.static_link = TRUE;
      break;

    case OPTION_NOEXPALL:
      auto_export_flags &= ~XCOFF_EXPALL;
      explicit_auto_export_flags |= XCOFF_EXPALL;
      break;

    case OPTION_NOEXPFULL:
      auto_export_flags &= ~XCOFF_EXPFULL;
      explicit_auto_export_flags |= XCOFF_EXPFULL;
      break;

    case OPTION_NOSTRCMPCT:
      link_info.traditional_format = TRUE;
      break;

    case OPTION_PD:
      /* This sets the page that the .data section is supposed to
	 start on.  The offset within the page should still be the
	 offset within the file, so we need to build an appropriate
	 expression.  */
      val = bfd_scan_vma (optarg, &end, 0);
      if (*end != '\0')
	einfo (_("%P: warning: ignoring invalid -pD number %s\n"), optarg);
      else
	{
	  etree_type *t;

	  t = exp_binop ('+',
			 exp_intop (val),
			 exp_binop ('&',
				    exp_nameop (NAME, "."),
				    exp_intop (0xfff)));
	  t = exp_binop ('&',
			 exp_binop ('+', t, exp_intop (31)),
			 exp_intop (~(bfd_vma) 31));
	  lang_section_start (".data", t, NULL);
	}
      break;

    case OPTION_PT:
      /* This set the page that the .text section is supposed to start
	 on.  The offset within the page should still be the offset
	 within the file.  */
      val = bfd_scan_vma (optarg, &end, 0);
      if (*end != '\0')
	einfo (_("%P: warning: ignoring invalid -pT number %s\n"), optarg);
      else
	{
	  etree_type *t;

	  t = exp_binop ('+',
			 exp_intop (val),
			 exp_nameop (SIZEOF_HEADERS, NULL));
	  t = exp_binop ('&',
			 exp_binop ('+', t, exp_intop (31)),
			 exp_intop (~(bfd_vma) 31));
	  lang_section_start (".text", t, NULL);
	}
      break;

    case OPTION_STRCMPCT:
      link_info.traditional_format = FALSE;
      break;

    case OPTION_UNIX:
      unix_ld = TRUE;
      break;

    case OPTION_32:
      is_64bit = 0;
      syscall_mask = 0x77;
      symbol_mode_mask = 0x0d;
      break;

    case OPTION_64:
      is_64bit = 1;
      syscall_mask = 0xcc;
      symbol_mode_mask = 0x0e;
      break;

    case OPTION_LIBPATH:
      command_line_blibpath = optarg;
      break;

    case OPTION_NOLIBPATH:
      command_line_blibpath = NULL;
      break;

    }

  return TRUE;
}

/* This is called when an input file can not be recognized as a BFD
   object or an archive.  If the file starts with #!, we must treat it
   as an import file.  This is for AIX compatibility.  */

static bfd_boolean
gld${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry)
{
  FILE *e;
  bfd_boolean ret;

  e = fopen (entry->filename, FOPEN_RT);
  if (e == NULL)
    return FALSE;

  ret = FALSE;

  if (getc (e) == '#' && getc (e) == '!')
    {
      struct filelist *n;
      struct filelist **flpp;

      n = (struct filelist *) xmalloc (sizeof (struct filelist));
      n->next = NULL;
      n->name = entry->filename;
      flpp = &import_files;
      while (*flpp != NULL)
	flpp = &(*flpp)->next;
      *flpp = n;

      ret = TRUE;
      entry->flags.loaded = TRUE;
    }

  fclose (e);

  return ret;
}

/* This is called after the input files have been opened.  */

static void
gld${EMULATION_NAME}_after_open (void)
{
  enum output_type t;
  struct set_info *p;

  after_open_default ();

  /* Call ldctor_build_sets, after pretending that this is a
     relocatable link.  We do this because AIX requires relocation
     entries for all references to symbols, even in a final
     executable.  Of course, we only want to do this if we are
     producing an XCOFF output file.  */
  t = link_info.type;
  if (strstr (bfd_get_target (link_info.output_bfd), "xcoff") != NULL)
    link_info.type = type_relocatable;
  ldctor_build_sets ();
  link_info.type = t;

  /* For each set, record the size, so that the XCOFF backend can
     output the correct csect length.  */
  for (p = sets; p != (struct set_info *) NULL; p = p->next)
    {
      bfd_size_type size;

      /* If the symbol is defined, we may have been invoked from
	 collect, and the sets may already have been built, so we do
	 not do anything.  */
      if (p->h->type == bfd_link_hash_defined
	  || p->h->type == bfd_link_hash_defweak)
	continue;

      if (p->reloc != BFD_RELOC_CTOR)
	{
	  /* Handle this if we need to.  */
	  abort ();
	}

      size = (p->count + 2) * 4;
      if (!bfd_xcoff_link_record_set (link_info.output_bfd, &link_info,
				      p->h, size))
	einfo (_("%F%P: bfd_xcoff_link_record_set failed: %E\n"));
    }
}

/* This is called after the sections have been attached to output
   sections, but before any sizes or addresses have been set.  */

static void
gld${EMULATION_NAME}_before_allocation (void)
{
  struct filelist *fl;
  struct export_symbol_list *el;
  char *libpath;
  asection *special_sections[XCOFF_NUMBER_OF_SPECIAL_SECTIONS];
  static const char *const must_keep_sections[] = {
    ".text",
    ".data",
    ".bss"
  };
  unsigned int i, flags;

  /* Handle the import and export files, if any.  */
  for (fl = import_files; fl != NULL; fl = fl->next)
    gld${EMULATION_NAME}_read_file (fl->name, TRUE);
  for (el = export_symbols; el != NULL; el = el->next)
    {
      struct bfd_link_hash_entry *h;

      h = bfd_link_hash_lookup (link_info.hash, el->name, FALSE, FALSE, FALSE);
      if (h == NULL)
	einfo (_("%F%P: bfd_link_hash_lookup of export symbol failed: %E\n"));
      if (!bfd_xcoff_export_symbol (link_info.output_bfd, &link_info, h))
	einfo (_("%F%P: bfd_xcoff_export_symbol failed: %E\n"));
    }

  /* Track down all relocations called for by the linker script (these
     are typically constructor/destructor entries created by
     CONSTRUCTORS) and let the backend know it will need to create
     .loader relocs for them.  */
  lang_for_each_statement (gld${EMULATION_NAME}_find_relocs);

  /* Precedence of LIBPATH
     -blibpath:	 native support always first
     -rpath:	 gnu extension
     -L		 build from command line -L's */
  if (command_line_blibpath != NULL)
    libpath = command_line_blibpath;
  else if (command_line.rpath != NULL)
    libpath = command_line.rpath;
  else if (search_head == NULL)
    libpath = (char *) "";
  else
    {
      size_t len;
      search_dirs_type *search;

      /* PR ld/4023: Strip sysroot prefix from any paths
	 being inserted into the output binary's DT_RPATH.  */
      if (ld_sysroot != NULL
	  && * ld_sysroot != 0)
	{
	  const char * name = search_head->name;
	  size_t ld_sysroot_len = strlen (ld_sysroot);

	  if (strncmp (name, ld_sysroot, ld_sysroot_len) == 0)
	    name += ld_sysroot_len;

	  len = strlen (name);
	  libpath = xmalloc (len + 1);
	  strcpy (libpath, name);

	  for (search = search_head->next; search != NULL; search = search->next)
	    {
	      size_t nlen;

	      name = search->name;
	      if (strncmp (name, ld_sysroot, ld_sysroot_len) == 0)
		name += ld_sysroot_len;

	      nlen = strlen (name);
	      libpath = xrealloc (libpath, len + nlen + 2);
	      libpath[len] = ':';
	      strcpy (libpath + len + 1, name);
	      len += nlen + 1;
	    }
	}
      else
	{
	  len = strlen (search_head->name);
	  libpath = xmalloc (len + 1);
	  strcpy (libpath, search_head->name);

	  for (search = search_head->next; search != NULL; search = search->next)
	    {
	      size_t nlen;

	      nlen = strlen (search->name);
	      libpath = xrealloc (libpath, len + nlen + 2);
	      libpath[len] = ':';
	      strcpy (libpath + len + 1, search->name);
	      len += nlen + 1;
	    }
	}
    }

  /* Default to -bexpfull for SVR4-like semantics.  */
  flags = (unix_ld ? XCOFF_EXPFULL : 0);
  flags &= ~explicit_auto_export_flags;
  flags |= auto_export_flags;

  /* Let the XCOFF backend set up the .loader section.  */
  if (!bfd_xcoff_size_dynamic_sections
      (link_info.output_bfd, &link_info, libpath, entry_symbol.name, file_align,
       maxstack, maxdata, gc && !unix_ld ? TRUE : FALSE,
       modtype, textro ? TRUE : FALSE, flags, special_sections,
       rtld ? TRUE : FALSE))
    einfo (_("%F%P: failed to set dynamic section sizes: %E\n"));

  /* Look through the special sections, and put them in the right
     place in the link ordering.  This is especially magic.  */
  for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++)
    {
      asection *sec;
      lang_output_section_statement_type *os;
      lang_statement_union_type **pls;
      lang_input_section_type *is;
      const char *oname;
      bfd_boolean start;

      sec = special_sections[i];
      if (sec == NULL)
	continue;

      /* Remove this section from the list of the output section.
	 This assumes we know what the script looks like.  */
      is = NULL;
      os = lang_output_section_get (sec->output_section);
      if (os == NULL)
	einfo (_("%F%P: can't find output section %s\n"),
	       sec->output_section->name);

      for (pls = &os->children.head; *pls != NULL; pls = &(*pls)->header.next)
	{
	  if ((*pls)->header.type == lang_input_section_enum
	      && (*pls)->input_section.section == sec)
	    {
	      is = (lang_input_section_type *) * pls;
	      *pls = (*pls)->header.next;
	      break;
	    }

	  if ((*pls)->header.type == lang_wild_statement_enum)
	    {
	      lang_statement_union_type **pwls;

	      for (pwls = &(*pls)->wild_statement.children.head;
		   *pwls != NULL; pwls = &(*pwls)->header.next)
		{

		  if ((*pwls)->header.type == lang_input_section_enum
		      && (*pwls)->input_section.section == sec)
		    {
		      is = (lang_input_section_type *) * pwls;
		      *pwls = (*pwls)->header.next;
		      break;
		    }
		}

	      if (is != NULL)
		break;
	    }
	}

      if (is == NULL)
	{
	  einfo (_("%F%P: can't find %s in output section\n"),
		 bfd_section_name (sec));
	}

      /* Now figure out where the section should go.  */
      switch (i)
	{

	default:		/* to avoid warnings */
	case XCOFF_SPECIAL_SECTION_TEXT:
	  /* _text */
	  oname = ".text";
	  start = TRUE;
	  break;

	case XCOFF_SPECIAL_SECTION_ETEXT:
	  /* _etext */
	  oname = ".text";
	  start = FALSE;
	  break;

	case XCOFF_SPECIAL_SECTION_DATA:
	  /* _data */
	  oname = ".data";
	  start = TRUE;
	  break;

	case XCOFF_SPECIAL_SECTION_EDATA:
	  /* _edata */
	  oname = ".data";
	  start = FALSE;
	  break;

	case XCOFF_SPECIAL_SECTION_END:
	case XCOFF_SPECIAL_SECTION_END2:
	  /* _end and end */
	  oname = ".bss";
	  start = FALSE;
	  break;
	}

      os = lang_output_section_find (oname);

      if (start)
	{
	  is->header.next = os->children.head;
	  os->children.head = (lang_statement_union_type *) is;
	}
      else
	{
	  is->header.next = NULL;
	  *os->children.tail = (lang_statement_union_type *) is;
	  os->children.tail = &is->header.next;
	}
    }

  /* Executables and shared objects must always have .text, .data
     and .bss output sections, so that the header can refer to them.
     The kernel refuses to load objects that have missing sections.  */
  if (!bfd_link_relocatable (&link_info))
    for (i = 0; i < ARRAY_SIZE (must_keep_sections); i++)
      {
	asection *sec;

	sec = bfd_get_section_by_name (link_info.output_bfd,
				       must_keep_sections[i]);
	if (sec == NULL)
	  einfo (_("%P: can't find required output section %s\n"),
		 must_keep_sections[i]);
	else
	  sec->flags |= SEC_KEEP;
      }

  before_allocation_default ();
}

static char *
gld${EMULATION_NAME}_choose_target (int argc, char **argv)
{
  int i, j, jmax;
  static char *from_outside;
  static char *from_inside;
  static char *argv_to_target[][2] = {
    {NULL,   "${OUTPUT_FORMAT}"},
    {"-b32", "${OUTPUT_FORMAT_32BIT}"},
    {"-b64", "${OUTPUT_FORMAT_64BIT}"},
  };

  jmax = 3;

  from_outside = getenv (TARGET_ENVIRON);
  if (from_outside != (char *) NULL)
    return from_outside;

  /* Set to default. */
  from_inside = argv_to_target[0][1];
  for (i = 1; i < argc; i++)
    {
      for (j = 1; j < jmax; j++)
	{
	  if (0 == strcmp (argv[i], argv_to_target[j][0]))
	    from_inside = argv_to_target[j][1];
	}
    }

  return from_inside;
}

/* Returns
   1 : state changed
   0 : no change */
static int
change_symbol_mode (char *input)
{
  char *symbol_mode_string[] = {
    "# 32",			/* 0x01 */
    "# 64",			/* 0x02 */
    "# no32",			/* 0x04 */
    "# no64",			/* 0x08 */
    NULL,
  };

  unsigned int bit;
  char *string;

  for (bit = 0;; bit++)
    {
      string = symbol_mode_string[bit];
      if (string == NULL)
	return 0;

      if (0 == strcmp (input, string))
	{
	  symbol_mode = (1 << bit);
	  return 1;
	}
    }
  /* should not be here */
  return 0;
}

/* Returns
   1 : yes
   0 : ignore
   -1 : error, try something else */
static int
is_syscall (char *input, unsigned int *flag)
{
  unsigned int bit;
  char *string;

  struct sc {
    char *syscall_string;
    unsigned int flag;
  } s [] = {
    { "svc"	    /* 0x01 */, XCOFF_SYSCALL32 },
    { "svc32"	    /* 0x02 */, XCOFF_SYSCALL32 },
    { "svc3264"     /* 0x04 */, XCOFF_SYSCALL32 | XCOFF_SYSCALL64 },
    { "svc64"	    /* 0x08 */, XCOFF_SYSCALL64 },
    { "syscall"     /* 0x10 */, XCOFF_SYSCALL32 },
    { "syscall32"   /* 0x20 */, XCOFF_SYSCALL32 },
    { "syscall3264" /* 0x40 */, XCOFF_SYSCALL32 | XCOFF_SYSCALL64 },
    { "syscall64"   /* 0x80 */, XCOFF_SYSCALL64 },
    { NULL, 0 },
  };

  *flag = 0;

  for (bit = 0;; bit++)
    {
      string = s[bit].syscall_string;
      if (string == NULL)
	return -1;

      if (0 == strcmp (input, string))
	{
	  if (1 << bit & syscall_mask)
	    {
	      *flag = s[bit].flag;
	      return 1;
	    }
	  else
	    {
	      return 0;
	    }
	}
    }
  /* should not be here */
  return -1;
}

/* Read an import or export file.  For an import file, this is called
   by the before_allocation emulation routine.  For an export file,
   this is called by the handle_option emulation routine.  */

static void
gld${EMULATION_NAME}_read_file (const char *filename, bfd_boolean import)
{
  struct obstack *o;
  FILE *f;
  int lineno;
  int c;
  bfd_boolean keep;
  const char *imppath;
  const char *impfile;
  const char *impmember;

  o = (struct obstack *) xmalloc (sizeof (struct obstack));
  obstack_specify_allocation (o, 0, 0, xmalloc, gld${EMULATION_NAME}_free);

  f = fopen (filename, FOPEN_RT);
  if (f == NULL)
    {
      bfd_set_error (bfd_error_system_call);
      einfo ("%F%P: %s: %E\n", filename);
      return;
    }

  keep = FALSE;

  imppath = NULL;
  impfile = NULL;
  impmember = NULL;

  lineno = 0;

  /* Default to 32 and 64 bit mode
     symbols at top of /lib/syscalls.exp do not have a mode modifier and they
     are not repeated, assume 64 bit routines also want to use them.
     See the routine change_symbol_mode for more information.  */

  symbol_mode = 0x04;

  while ((c = getc (f)) != EOF)
    {
      char *s;
      char *symname;
      unsigned int syscall_flag = 0;
      bfd_vma address;
      struct bfd_link_hash_entry *h;

      if (c != '\n')
	{
	  obstack_1grow (o, c);
	  continue;
	}

      obstack_1grow (o, '\0');
      ++lineno;

      s = (char *) obstack_base (o);
      while (ISSPACE (*s))
	++s;
      if (*s == '\0'
	  || *s == '*'
	  || change_symbol_mode (s)
	  || (*s == '#' && s[1] == ' ')
	  || (!import && *s == '#' && s[1] == '!'))
	{
	  obstack_free (o, obstack_base (o));
	  continue;
	}

      if (*s == '#' && s[1] == '!')
	{
	  s += 2;
	  while (ISSPACE (*s))
	    ++s;
	  if (*s == '\0')
	    {
	      imppath = NULL;
	      impfile = NULL;
	      impmember = NULL;
	      obstack_free (o, obstack_base (o));
	    }
	  else if (*s == '(')
	    einfo (_("%F%P:%s:%d: #! ([member]) is not supported "
		     "in import files\n"),
		   filename, lineno);
	  else
	    {
	      char cs;
	      char *start;

	      (void) obstack_finish (o);
	      keep = TRUE;
	      start = s;
	      while (!ISSPACE (*s) && *s != '(' && *s != '\0')
		++s;
	      cs = *s;
	      *s = '\0';
	      if (!bfd_xcoff_split_import_path (link_info.output_bfd,
						start, &imppath, &impfile))
		einfo (_("%F%P: could not parse import path: %E\n"));
	      while (ISSPACE (cs))
		{
		  ++s;
		  cs = *s;
		}
	      if (cs != '(')
		{
		  impmember = "";
		  if (cs != '\0')
		    einfo (_("%P:%s:%d: warning: syntax error in import file\n"),
			   filename, lineno);
		}
	      else
		{
		  ++s;
		  impmember = s;
		  while (*s != ')' && *s != '\0')
		    ++s;
		  if (*s == ')')
		    *s = '\0';
		  else
		    einfo (_("%P:%s:%d: warning: syntax error in import file\n"),
			   filename, lineno);
		}
	    }

	  continue;
	}

      if (symbol_mode & symbol_mode_mask)
	{
	  /* This is a symbol to be imported or exported.  */
	  symname = s;
	  syscall_flag = 0;
	  address = (bfd_vma) -1;

	  while (!ISSPACE (*s) && *s != '\0')
	    ++s;
	  if (*s != '\0')
	    {
	      char *se;

	      *s++ = '\0';

	      while (ISSPACE (*s))
		++s;

	      se = s;
	      while (!ISSPACE (*se) && *se != '\0')
		++se;
	      if (*se != '\0')
		{
		  *se++ = '\0';
		  while (ISSPACE (*se))
		    ++se;
		  if (*se != '\0')
		    einfo (_("%P:%s%d: warning: syntax error in "
			     "import/export file\n"),
			   filename, lineno);
		}

	      if (s != se)
		{
		  int status;
		  const char *end;

		  status = is_syscall (s, &syscall_flag);

		  if (0 > status)
		    {
		      /* not a system call, check for address */
		      address = bfd_scan_vma (s, &end, 0);
		      if (*end != '\0')
			{
			  einfo (_("%P:%s:%d: warning: syntax error in "
				   "import/export file\n"),
				 filename, lineno);

			}
		    }
		}
	    }

	  if (!import)
	    {
	      struct export_symbol_list *n;

	      ldlang_add_undef (symname, TRUE);
	      n = ((struct export_symbol_list *)
		   xmalloc (sizeof (struct export_symbol_list)));
	      n->next = export_symbols;
	      n->name = xstrdup (symname);
	      export_symbols = n;
	    }
	  else
	    {
	      h = bfd_link_hash_lookup (link_info.hash, symname, FALSE, FALSE,
					TRUE);
	      if (h == NULL || h->type == bfd_link_hash_new)
		{
		  /* We can just ignore attempts to import an unreferenced
		     symbol.  */
		}
	      else
		{
		  if (!bfd_xcoff_import_symbol (link_info.output_bfd,
						&link_info, h,
						address, imppath, impfile,
						impmember, syscall_flag))
		    einfo (_("%X%P:%s:%d: failed to import symbol %s: %E\n"),
			   filename, lineno, symname);
		}
	    }
	}
      obstack_free (o, obstack_base (o));
    }

  if (obstack_object_size (o) > 0)
    {
      einfo (_("%P:%s:%d: warning: ignoring unterminated last line\n"),
	     filename, lineno);
      obstack_free (o, obstack_base (o));
    }

  if (!keep)
    {
      obstack_free (o, NULL);
      free (o);
    }

  fclose (f);
}

/* This routine saves us from worrying about declaring free.  */

static void
gld${EMULATION_NAME}_free (void *p)
{
  free (p);
}

/* This is called by the before_allocation routine via
   lang_for_each_statement.  It looks for relocations and assignments
   to symbols.  */

static void
gld${EMULATION_NAME}_find_relocs (lang_statement_union_type *s)
{
  if (s->header.type == lang_reloc_statement_enum)
    {
      lang_reloc_statement_type *rs;

      rs = &s->reloc_statement;
      if (rs->name == NULL)
	einfo (_("%F%P: only relocations against symbols are permitted\n"));
      if (!bfd_xcoff_link_count_reloc (link_info.output_bfd, &link_info,
				       rs->name))
	einfo (_("%F%P: bfd_xcoff_link_count_reloc failed: %E\n"));
    }

  if (s->header.type == lang_assignment_statement_enum)
    gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
}

/* Look through an expression for an assignment statement.  */

static void
gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
{
  struct bfd_link_hash_entry *h;

  switch (exp->type.node_class)
    {
    case etree_provide:
      h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
				FALSE, FALSE, FALSE);
      if (h == NULL)
	break;
      /* Fall through.  */
    case etree_assign:
      if (strcmp (exp->assign.dst, ".") != 0)
	{
	  if (!bfd_xcoff_record_link_assignment (link_info.output_bfd,
						 &link_info,
						 exp->assign.dst))
	    einfo (_("%F%P: failed to record assignment to %s: %E\n"),
		   exp->assign.dst);
	}
      gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
      break;

    case etree_binary:
      gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
      gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
      break;

    case etree_trinary:
      gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
      gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
      gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
      break;

    case etree_unary:
      gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
      break;

    default:
      break;
    }
}

static char *
gld${EMULATION_NAME}_get_script (int *isfile)
EOF

if test x"$COMPILE_IN" = xyes
then
# Scripts compiled in.

# sed commands to quote an ld script as a C string.
sc="-f ${srcdir}/emultempl/ostring.sed"

fragment <<EOF
{
  *isfile = 0;

  if (bfd_link_relocatable (&link_info) && config.build_constructors)
    return
EOF
sed $sc ldscripts/${EMULATION_NAME}.xu		       >> e${EMULATION_NAME}.c
echo '  ; else if (bfd_link_relocatable (&link_info)) return' >> e${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

else
# Scripts read from the filesystem.

fragment <<EOF
{
  *isfile = 1;

  if (bfd_link_relocatable (&link_info) && config.build_constructors)
    return "ldscripts/${EMULATION_NAME}.xu";
  else if (bfd_link_relocatable (&link_info))
    return "ldscripts/${EMULATION_NAME}.xr";
  else if (!config.text_read_only)
    return "ldscripts/${EMULATION_NAME}.xbn";
  else if (!config.magic_demand_paged)
    return "ldscripts/${EMULATION_NAME}.xn";
  else
    return "ldscripts/${EMULATION_NAME}.x";
}
EOF

fi

fragment <<EOF

static void
gld${EMULATION_NAME}_create_output_section_statements (void)
{
  /* __rtinit */
  if ((bfd_get_flavour (link_info.output_bfd) == bfd_target_xcoff_flavour)
      && (link_info.init_function != NULL
	  || link_info.fini_function != NULL
	  || rtld))
    {
      initfini_file = lang_add_input_file ("initfini",
					   lang_input_file_is_file_enum,
					   NULL);

      initfini_file->the_bfd = bfd_create ("initfini", link_info.output_bfd);
      if (initfini_file->the_bfd == NULL
	  || ! bfd_set_arch_mach (initfini_file->the_bfd,
				  bfd_get_arch (link_info.output_bfd),
				  bfd_get_mach (link_info.output_bfd)))
	{
	  einfo (_("%F%P: can not create BFD: %E\n"));
	  return;
	}

      /* Call backend to fill in the rest */
      if (! bfd_xcoff_link_generate_rtinit (initfini_file->the_bfd,
					    link_info.init_function,
					    link_info.fini_function,
					    rtld))
	{
	  einfo (_("%F%P: can not create BFD: %E\n"));
	  return;
	}

      /* __rtld defined in /lib/librtl.a */
      if (rtld)
	lang_add_input_file ("rtl", lang_input_file_is_l_enum, NULL);
    }
}

static void
gld${EMULATION_NAME}_set_output_arch (void)
{
  bfd_set_arch_mach (link_info.output_bfd,
		     bfd_xcoff_architecture (link_info.output_bfd),
		     bfd_xcoff_machine (link_info.output_bfd));

  ldfile_output_architecture = bfd_get_arch (link_info.output_bfd);
  ldfile_output_machine = bfd_get_mach (link_info.output_bfd);
  ldfile_output_machine_name = bfd_printable_name (link_info.output_bfd);
}

static bfd_boolean
gld${EMULATION_NAME}_open_dynamic_archive (const char *arch,
					   search_dirs_type *search,
					   lang_input_statement_type *entry)
{
  char *path;

  if (!entry->flags.maybe_archive)
    return FALSE;

  if (entry->flags.full_name_provided)
    path = concat (search->name, "/", entry->filename,
		   (const char *) NULL);
  else
    path = concat (search->name, "/lib", entry->filename, arch, ".a",
		   (const char *) NULL);

  if (!ldfile_try_open_bfd (path, entry))
    {
      free (path);
      return FALSE;
    }
  /* Don't include the searched directory in the import path.  */
  bfd_xcoff_set_archive_import_path (&link_info, entry->the_bfd,
				     path + strlen (search->name) + 1);
  entry->filename = path;
  return TRUE;
}

struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = {
  gld${EMULATION_NAME}_before_parse,
  syslib_default,
  hll_default,
  after_parse_default,
  gld${EMULATION_NAME}_after_open,
  after_check_relocs_default,
  after_allocation_default,
  gld${EMULATION_NAME}_set_output_arch,
  gld${EMULATION_NAME}_choose_target,
  gld${EMULATION_NAME}_before_allocation,
  gld${EMULATION_NAME}_get_script,
  "${EMULATION_NAME}",
  "${OUTPUT_FORMAT}",
  finish_default,
  gld${EMULATION_NAME}_create_output_section_statements,
  gld${EMULATION_NAME}_open_dynamic_archive,
  0,				/* place_orphan */
  0,				/* set_symbols */
  gld${EMULATION_NAME}_parse_args,
  gld${EMULATION_NAME}_add_options,
  gld${EMULATION_NAME}_handle_option,
  gld${EMULATION_NAME}_unrecognized_file,
  NULL,				/* list_options */
  NULL,				/* recognized_file */
  NULL,				/* find potential_libraries */
  NULL,				/* new_vers_pattern */
  NULL,				/* extra_map_file_text */
  ${LDEMUL_EMIT_CTF_EARLY-NULL},
  ${LDEMUL_EXAMINE_STRTAB_FOR_CTF-NULL}
};
EOF