aboutsummaryrefslogtreecommitdiff
path: root/bfd/archive.c
blob: 4f22658dc8edad1c4f5b5403f6bb1e07b227a3db (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
/* BFD back-end for archive files (libraries).
   Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
   Written by Cygnus Support.  Mostly Gumby Henkel-Wallace's fault.

This file is part of BFD, the Binary File Descriptor library.

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., 675 Mass Ave, Cambridge, MA 02139, USA.  */

/*
@setfilename archive-info
SECTION
	Archives

DESCRIPTION
	Archives are supported in BFD in <<archive.c>>.

	An archive (or library) is just another BFD.  It has a symbol
	table, although there's not much a user program will do with it.

	The big difference between an archive BFD and an ordinary BFD
	is that the archive doesn't have sections.  Instead it has a
	chain of BFDs considered its contents.  These BFDs can be
	manipulated just like any other.  The BFDs contained in an
	archive opened for reading will all be opened for reading; you
	may put either input or output BFDs into an archive opened for
	output; it will be handled correctly when the archive is closed.

	Use <<bfd_openr_next_archived_file>> to step through all
	the contents of an archive opened for input.  It's not
	required that you read the entire archive if you don't want
	to!  Read it until you find what you want.

	Archive contents of output BFDs are chained through the
	<<next>> pointer in a BFD.  The first one is findable through
	the <<archive_head>> slot of the archive.  Set it with
	<<set_archive_head>> (q.v.).  A given BFD may be in only one
	open output archive at a time.

	As expected, the BFD archive code is more general than the
	archive code of any given environment.  BFD archives may
	contain files of different formats (e.g., a.out and coff) and
	even different architectures.  You may even place archives
	recursively into archives!

	This can cause unexpected confusion, since some archive
	formats are more expressive than others.  For instance, Intel
	COFF archives can preserve long filenames; Sun a.out archives
	cannot.  If you move a file from the first to the second
	format and back again, the filename may be truncated.
	Likewise, different a.out environments have different
	conventions as to how they truncate filenames, whether they
	preserve directory names in filenames, etc.  When
	interoperating with native tools, be sure your files are
	homogeneous.

	Beware: most of these formats do not react well to the
	presence of spaces in filenames.  We do the best we can, but
	can't always handle this due to restrctions in the format of
	archives.  Many unix utilities are braindead in regards to
	spaces and such in filenames anyway, so this shouldn't be much
	of a restriction.
*/

/* Assumes:
   o - all archive elements start on an even boundary, newline padded;
   o - all arch headers are char *;
   o - all arch headers are the same size (across architectures).
*/

/* Some formats provide a way to cram a long filename into the short
   (16 chars) space provided by a bsd archive.  The trick is: make a
   special "file" in the front of the archive, sort of like the SYMDEF
   entry.  If the filename is too long to fit, put it in the extended
   name table, and use its index as the filename.  To prevent
   confusion prepend the index with a space.  This means you can't
   have filenames that start with a space, but then again, many unix
   utilities can't handle that anyway.

   This scheme unfortunately requires that you stand on your head in
   order to write an archive since you need to put a magic file at the
   front, and need to touch every entry to do so.  C'est la vie.
*/

#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "aout/ar.h"
#include "aout/ranlib.h"
#include <errno.h>

#ifndef errno
extern int errno;
#endif

#ifdef GNU960
#define BFD_GNU960_ARMAG(abfd)	(BFD_COFF_FILE_P((abfd)) ? ARMAG : ARMAGB)
#endif

/* We keep a cache of archive filepointers to archive elements to
   speed up searching the archive by filepos.  We only add an entry to
   the cache when we actually read one.  We also don't sort the cache;
   it's generally short enough to search linearly.
   Note that the pointers here point to the front of the ar_hdr, not
   to the front of the contents!
*/
struct ar_cache {
  file_ptr ptr;
  bfd* arelt;
  struct ar_cache *next;
};

#define ar_padchar(abfd) ((abfd)->xvec->ar_pad_char)
#define ar_maxnamelen(abfd) ((abfd)->xvec->ar_max_namelen)

#define arch_hdr(bfd) ((struct ar_hdr *)   \
		       (((struct areltdata *)((bfd)->arelt_data))->arch_header))

boolean
_bfd_generic_mkarchive (abfd)
     bfd *abfd;
{
  abfd->tdata.aout_ar_data = (struct artdata *)bfd_zalloc(abfd, sizeof (struct artdata));

  if (bfd_ardata (abfd) == NULL) {
      bfd_error = no_memory;
      return false;
    }
  bfd_ardata(abfd)->cache = 0;
  return true;
}

/*
FUNCTION
	bfd_get_next_mapent

SYNOPSIS
	symindex bfd_get_next_mapent(bfd *, symindex previous, carsym ** sym);

DESCRIPTION
	This function steps through an archive's symbol table (if it
	has one).  Successively updates <<sym>> with the next symbol's
	information, returning that symbol's (internal) index into the
	symbol table.

	Supply BFD_NO_MORE_SYMBOLS as the <<previous>> entry to get
	the first one; returns BFD_NO_MORE_SYMBOLS when you're already
	got the last one.

	A <<carsym>> is a canonical archive symbol.  The only
	user-visible element is its name, a null-terminated string.
*/

symindex
DEFUN(bfd_get_next_mapent,(abfd, prev, entry),
     bfd *abfd AND
     symindex prev AND
     carsym **entry)
{
  if (!bfd_has_map (abfd)) {
    bfd_error = invalid_operation;
    return BFD_NO_MORE_SYMBOLS;
  }
  
  if (prev == BFD_NO_MORE_SYMBOLS) prev = 0;
  else if (++prev >= bfd_ardata (abfd)->symdef_count)
    return BFD_NO_MORE_SYMBOLS;

  *entry = (bfd_ardata (abfd)->symdefs + prev);
  return prev;
}

/* To be called by backends only */
bfd *
_bfd_create_empty_archive_element_shell (obfd)
     bfd *obfd;
{
  bfd *nbfd;

  nbfd = new_bfd_contained_in(obfd);
  if (nbfd == NULL) {
    bfd_error = no_memory;
    return NULL;
  }
  return nbfd;
}

/*
FUNCTION
	bfd_set_archive_head

SYNOPSIS
	boolean bfd_set_archive_head(bfd *output, bfd *new_head);

DESCRIPTION
	Used whilst processing archives. Sets the head of the chain of
	BFDs contained in an archive to @var{new_head}. 
*/

boolean
DEFUN(bfd_set_archive_head,(output_archive, new_head),
     bfd *output_archive AND 
     bfd *new_head)
{

  output_archive->archive_head = new_head;
  return true;
}

bfd *
look_for_bfd_in_cache (arch_bfd, filepos)
     bfd *arch_bfd;
     file_ptr filepos;
{
  struct ar_cache *current;

  for (current = bfd_ardata (arch_bfd)->cache; current != NULL;
       current = current->next)
    if (current->ptr == filepos) return current->arelt;

  return NULL;
}

/* Kind of stupid to call cons for each one, but we don't do too many */
boolean
add_bfd_to_cache (arch_bfd, filepos, new_elt)
     bfd *arch_bfd, *new_elt;
     file_ptr filepos;
{
  struct ar_cache *new_cache = (struct ar_cache *)
				bfd_zalloc(arch_bfd, sizeof (struct ar_cache));

  if (new_cache == NULL) {
    bfd_error = no_memory;
    return false;
  }

  new_cache->ptr = filepos;
  new_cache->arelt = new_elt;
  new_cache->next = (struct ar_cache *)NULL;
  if (bfd_ardata (arch_bfd)->cache == NULL)
    bfd_ardata (arch_bfd)->cache = new_cache;
  else {
    struct ar_cache *current = bfd_ardata (arch_bfd)->cache;

    for (; current->next != NULL; current = current->next);
    current->next = new_cache;
  }
    
  return true;
}



/* The name begins with space.  Hence the rest of the name is an index into
   the string table. */
char *
get_extended_arelt_filename (arch, name)
     bfd *arch;
     char *name;
{
  unsigned long index = 0;

  /* Should extract string so that I can guarantee not to overflow into
     the next region, but I'm too lazy. */
  errno = 0;
  /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
  index = strtol (name+1, NULL, 10);
  if (errno != 0) {
      bfd_error = malformed_archive;
      return NULL;
    }

  return bfd_ardata (arch)->extended_names + index;
}  

/* This functions reads an arch header and returns an areltdata pointer, or
   NULL on error.

   Presumes the file pointer is already in the right place (ie pointing
   to the ar_hdr in the file).   Moves the file pointer; on success it
   should be pointing to the front of the file contents; on failure it
   could have been moved arbitrarily.
*/

struct areltdata *
snarf_ar_hdr (abfd)
     bfd *abfd;
{
#ifndef errno
  extern int errno;
#endif

    struct ar_hdr hdr;
    char *hdrp = (char *) &hdr;
    unsigned int parsed_size;
    struct areltdata *ared;
    char *filename = NULL;
    unsigned int namelen = 0;
    unsigned int allocsize = sizeof (struct areltdata) + sizeof (struct ar_hdr);
    char *allocptr;

    if (bfd_read ((PTR)hdrp, 1, sizeof (struct ar_hdr), abfd)
	!= sizeof (struct ar_hdr)) {
	bfd_error = no_more_archived_files;
	return NULL;
    }
    if (strncmp ((hdr.ar_fmag), ARFMAG, 2)) {
	bfd_error = malformed_archive;
	return NULL;
    }

    errno = 0;
    parsed_size = strtol (hdr.ar_size, NULL, 10);
    if (errno != 0) {
	bfd_error = malformed_archive;
	return NULL;
    }

    /* extract the filename from the archive - there are two ways to
       specify an extendend name table, either the first char of the
       name is a space, or it's a slash.  */
    if ((hdr.ar_name[0] == '/'
	 || (hdr.ar_name[0] == ' '
	     && memchr (hdr.ar_name, '/', ar_maxnamelen(abfd)) == NULL))
	&& bfd_ardata (abfd)->extended_names != NULL) {
	filename = get_extended_arelt_filename (abfd, hdr.ar_name);
	if (filename == NULL) {
	    bfd_error = malformed_archive;
	    return NULL;
	}
    } 
    else 
	{
	    /* We judge the end of the name by looking for '/' or ' '.
	       Note:  The SYSV format (terminated by '/') allows embedded
	       spaces, so only look for ' ' if we don't find '/'. */

	    namelen = 0;
	    while (hdr.ar_name[namelen] != '\0' &&
		   hdr.ar_name[namelen] != '/') {
		namelen++;
		if (namelen == (unsigned)ar_maxnamelen(abfd)) {
		    namelen = 0;
		    while (hdr.ar_name[namelen] != ' '
			   && namelen < (unsigned)ar_maxnamelen(abfd)) {
			namelen++;
		    }
		    break;
		}
	    }

	    allocsize += namelen + 1;
	}

    allocptr = bfd_zalloc(abfd, allocsize);
    if (allocptr == NULL) {
	bfd_error = no_memory;
	return NULL;
    }

    ared = (struct areltdata *) allocptr;

    ared->arch_header = allocptr + sizeof (struct areltdata);
    memcpy ((char *) ared->arch_header, (char *) &hdr, sizeof (struct ar_hdr));
    ared->parsed_size = parsed_size;

    if (filename != NULL) ared->filename = filename;
    else {
	ared->filename = allocptr + (sizeof (struct areltdata) +
				     sizeof (struct ar_hdr));
	if (namelen)
	    memcpy (ared->filename, hdr.ar_name, namelen);
	ared->filename[namelen] = '\0';
    }
  
    return ared;
}

/* This is an internal function; it's mainly used when indexing
   through the archive symbol table, but also used to get the next
   element, since it handles the bookkeeping so nicely for us.
*/

bfd *
get_elt_at_filepos (archive, filepos)
     bfd *archive;
     file_ptr filepos;
{
  struct areltdata *new_areldata;
  bfd *n_nfd;

  n_nfd = look_for_bfd_in_cache (archive, filepos);
  if (n_nfd) return n_nfd;

  if (0 > bfd_seek (archive, filepos, SEEK_SET)) {
    bfd_error = system_call_error;
    return NULL;
  }

  if ((new_areldata = snarf_ar_hdr (archive)) == NULL) return NULL;
  
  n_nfd = _bfd_create_empty_archive_element_shell (archive);
  if (n_nfd == NULL) {
    bfd_release (archive, (PTR)new_areldata);
    return NULL;
  }
  n_nfd->origin = bfd_tell (archive);
  n_nfd->arelt_data = (PTR) new_areldata;
  n_nfd->filename = new_areldata->filename;

  if (add_bfd_to_cache (archive, filepos, n_nfd))
    return n_nfd;

  /* huh? */
  bfd_release (archive, (PTR)n_nfd);
  bfd_release (archive, (PTR)new_areldata);
  return NULL;
}

/*
FUNCTION
	bfd_get_elt_at_index

SYNOPSIS
	bfd *bfd_get_elt_at_index(bfd * archive, int index);

DESCRIPTION
	Return the bfd which is referenced by the symbol indexed by <<index>>.
	<<index>> should have been returned by <<bfd_get_next_mapent>> (q.v.).

*/
bfd *
DEFUN(bfd_get_elt_at_index,(abfd, index),
     bfd *abfd AND
     int index)
{
  bfd *result =
    get_elt_at_filepos
      (abfd, (bfd_ardata (abfd)->symdefs + index)->file_offset);
  return result;
}

/*
FUNCTION
	bfd_openr_next_archived_file

SYNOPSIS
	bfd* bfd_openr_next_archived_file(bfd *archive, bfd *previous);

DESCRIPTION
	Initially provided a BFD containing an archive and NULL, opens
	an inpout BFD on the first contained element and returns that.
	Subsequent calls to bfd_openr_next_archived_file should pass
	the archive and the previous return value to return a created
	BFD to the next contained element. NULL is returned when there
	are no more.

*/

bfd *
DEFUN(bfd_openr_next_archived_file,(archive, last_file),
     bfd *archive AND  
      bfd*last_file)
{

    if ((bfd_get_format (archive) != bfd_archive) ||
	(archive->direction == write_direction)) {
	    bfd_error = invalid_operation;
	    return NULL;
	}


    return BFD_SEND (archive,
		     openr_next_archived_file,
		     (archive,
		      last_file));

}

bfd *bfd_generic_openr_next_archived_file(archive, last_file)
     bfd *archive;
     bfd *last_file;
{
  file_ptr filestart;

  if (!last_file)
    filestart = bfd_ardata (archive)->first_file_filepos;
  else {
    unsigned int size = arelt_size(last_file);
    /* Pad to an even boundary... */
    filestart = last_file->origin + size + size%2;
  }

  return get_elt_at_filepos (archive, filestart);
}


bfd_target *
bfd_generic_archive_p (abfd)
     bfd *abfd;
{
  char armag[SARMAG+1];

  if (bfd_read ((PTR)armag, 1, SARMAG, abfd) != SARMAG) {
    bfd_error = wrong_format;
    return 0;
  }

#ifdef GNU960
  if (strncmp (armag, BFD_GNU960_ARMAG(abfd), SARMAG)) return 0;
#else
  if (strncmp (armag, ARMAG, SARMAG) &&
      strncmp (armag, ARMAGB, SARMAG)) return 0;
#endif



  /* We are setting bfd_ardata(abfd) here, but since bfd_ardata
     involves a cast, we can't do it as the left operand of assignment. */
  abfd->tdata.aout_ar_data = (struct artdata *) bfd_zalloc(abfd,sizeof (struct artdata));

  if (bfd_ardata (abfd)  == NULL) {
    bfd_error = no_memory;
    return 0;
  }

  bfd_ardata (abfd)->first_file_filepos = SARMAG;
  
  if (!bfd_slurp_armap (abfd)) {
    bfd_release(abfd, bfd_ardata (abfd));
    abfd->tdata.aout_ar_data = NULL;
    return 0;
  }

  if (!BFD_SEND (abfd, _bfd_slurp_extended_name_table, (abfd))) {
    bfd_release(abfd, bfd_ardata (abfd));
    abfd->tdata.aout_ar_data = NULL;
    return 0;
  }
  
  return abfd->xvec;
}

/* Returns false on error, true otherwise */
static boolean
do_slurp_bsd_armap (abfd)
     bfd *abfd;
{

  struct areltdata *mapdata;
  char nextname[17];
  unsigned int counter = 0;
  int *raw_armap, *rbase;
  struct artdata *ardata = bfd_ardata (abfd);
  char *stringbase;
  unsigned int parsed_size;

  mapdata = snarf_ar_hdr (abfd);
  if (mapdata == NULL) return false;
  parsed_size = mapdata->parsed_size;
  bfd_release (abfd, (PTR)mapdata); /* Don't need it any more. */
    
  raw_armap = (int *) bfd_zalloc(abfd, parsed_size);
  if (raw_armap == NULL) {
      bfd_error = no_memory;
      return false;
  }
    
  if (bfd_read ((PTR)raw_armap, 1, parsed_size, abfd) != parsed_size) {
      bfd_error = malformed_archive;
    byebye:
      bfd_release (abfd, (PTR)raw_armap);
      return false;
  }
    
  ardata->symdef_count =
      bfd_h_get_32(abfd, (PTR)raw_armap) / sizeof (struct symdef);
    
  if (ardata->symdef_count * sizeof (struct symdef)
      > parsed_size - sizeof (*raw_armap)) {
      /* Probably we're using the wrong byte ordering.  */
      bfd_error = wrong_format;
      goto byebye;
  }
  
  ardata->cache = 0;
  rbase = raw_armap+1;
  ardata->symdefs = (carsym *) rbase;
  stringbase = ((char *) (ardata->symdefs + ardata->symdef_count)) + 4;
  
  for (;counter < ardata->symdef_count; counter++) {
      struct symdef *sym = ((struct symdef *) rbase) + counter;
      sym->s.name = bfd_h_get_32(abfd, (PTR)(&(sym->s.string_offset))) + stringbase;
      sym->file_offset = bfd_h_get_32(abfd, (PTR)( &(sym->file_offset)));
  }
  
  ardata->first_file_filepos = bfd_tell (abfd);
  /* Pad to an even boundary if you have to */
  ardata->first_file_filepos += (ardata-> first_file_filepos) %2;
  /* FIXME, we should provide some way to free raw_ardata when
     we are done using the strings from it.  For now, it seems
     to be allocated on an obstack anyway... */
  bfd_has_map (abfd) = true;
  return true;
}

/* Returns false on error, true otherwise */
static boolean
do_slurp_coff_armap (abfd)
     bfd *abfd;
{
  struct areltdata *mapdata;
  char nextname;
  int *raw_armap, *rawptr;
  struct artdata *ardata = bfd_ardata (abfd);
  char *stringbase;
  unsigned int stringsize;
  unsigned int parsed_size;
  carsym *carsyms;
  int result;
  unsigned int nsymz; /* Number of symbols in armap. */

  bfd_vma (*swap)();
  char int_buf[sizeof(long)];
  unsigned int carsym_size, ptrsize, i;
  
  mapdata = snarf_ar_hdr (abfd);
  if (mapdata == NULL) return false;
  parsed_size = mapdata->parsed_size;
  bfd_release (abfd, (PTR)mapdata); /* Don't need it any more. */

  if (bfd_read ((PTR)int_buf, 1, 4, abfd) != 4) {
    bfd_error = malformed_archive;
    return false;
  }
  /* It seems that all numeric information in a coff archive is always
     in big endian format, nomatter the host or target. */
  swap = _do_getb32;
  nsymz = _do_getb32((PTR)int_buf);
  stringsize = parsed_size - (4 * nsymz) - 4;

#if 1
  /* ... except that some archive formats are broken, and it may be our
     fault - the i960 little endian coff sometimes has big and sometimes
     little, because our tools changed.  Here's a horrible hack to clean
     up the crap.  */
  
  if (stringsize > 0xfffff) {
      /* This looks dangerous, let's do it the other way around */
      nsymz = _do_getl32((PTR)int_buf);
      stringsize = parsed_size - (4 * nsymz) - 4;
      swap = _do_getl32;
  }
#endif

  /* The coff armap must be read sequentially.  So we construct a bsd-style
     one in core all at once, for simplicity. */  
  
  carsym_size = (nsymz * sizeof (carsym));
  ptrsize = (4 * nsymz);

  ardata->symdefs = (carsym *) bfd_zalloc(abfd, carsym_size + stringsize + 1);
  if (ardata->symdefs == NULL) {
      bfd_error = no_memory;
      return false;
  }
  carsyms = ardata->symdefs;
  stringbase = ((char *) ardata->symdefs) + carsym_size;

  /* Allocate and read in the raw offsets. */
  raw_armap = (int *) bfd_alloc(abfd, ptrsize);
  if (raw_armap == NULL) {
      bfd_error = no_memory;
      goto release_symdefs;
  }
  if (bfd_read ((PTR)raw_armap, 1, ptrsize, abfd) != ptrsize
      || bfd_read ((PTR)stringbase, 1, stringsize, abfd) != stringsize) {
    bfd_error = malformed_archive;
    goto release_raw_armap;
  }

  /* OK, build the carsyms */
  for (i = 0; i < nsymz; i++) {
      rawptr = raw_armap + i;
      carsyms->file_offset = swap((PTR)rawptr);
      carsyms->name = stringbase;
      while (*stringbase++) ;
      carsyms++;
  }
  *stringbase = 0;

  ardata->symdef_count = nsymz;
  ardata->first_file_filepos = bfd_tell (abfd);
  /* Pad to an even boundary if you have to */
  ardata->first_file_filepos += (ardata->first_file_filepos) %2;

  bfd_has_map (abfd) = true;
  bfd_release (abfd, (PTR)raw_armap);
  return true;

 release_raw_armap:
  bfd_release (abfd, (PTR)raw_armap);
 release_symdefs:
  bfd_release (abfd, (PTR)(ardata)->symdefs);
  return false;
}

/* This routine can handle either coff-style or bsd-style armaps.
   Returns false on error, true otherwise */

boolean
bfd_slurp_armap (abfd)
     bfd *abfd;
{
  char nextname[17];
  int i = bfd_read ((PTR)nextname, 1, 16, abfd);
  
  if (i == 0)
      return true;
  if (i != 16)
      return false;

  bfd_seek (abfd, (file_ptr) -16, SEEK_CUR);

  if (!strncmp (nextname, "__.SYMDEF       ", 16))
    return do_slurp_bsd_armap (abfd);
  else if (!strncmp (nextname, "/               ", 16))
    return do_slurp_coff_armap (abfd);

  bfd_has_map (abfd) = false;
  return true;
}

/** Extended name table.

  Normally archives support only 14-character filenames.

  Intel has extended the format: longer names are stored in a special
  element (the first in the archive, or second if there is an armap);
  the name in the ar_hdr is replaced by <space><index into filename
  element>.  Index is the P.R. of an int (decimal).  Data General have
  extended the format by using the prefix // for the special element */

/* Returns false on error, true otherwise */
boolean
_bfd_slurp_extended_name_table (abfd)
     bfd *abfd;
{
  char nextname[17];
  struct areltdata *namedata;

  /* FIXME:  Formatting sucks here, and in case of failure of BFD_READ,
     we probably don't want to return true.  */
  if (bfd_read ((PTR)nextname, 1, 16, abfd) == 16) {

    bfd_seek (abfd, (file_ptr) -16, SEEK_CUR);

    if (strncmp (nextname, "ARFILENAMES/    ", 16) != 0 &&
	strncmp (nextname, "//              ", 16) != 0) 
	{
      bfd_ardata (abfd)->extended_names = NULL;
      return true;
    }

    namedata = snarf_ar_hdr (abfd);
    if (namedata == NULL) return false;
  
    bfd_ardata (abfd)->extended_names = bfd_zalloc(abfd,namedata->parsed_size);
    if (bfd_ardata (abfd)->extended_names == NULL) {
      bfd_error = no_memory;
    byebye:
      bfd_release (abfd, (PTR)namedata);
      return false;
    }

    if (bfd_read ((PTR)bfd_ardata (abfd)->extended_names, 1,
		  namedata->parsed_size, abfd) != namedata->parsed_size) {
      bfd_error = malformed_archive;
      bfd_release (abfd, (PTR)(bfd_ardata (abfd)->extended_names));
      bfd_ardata (abfd)->extended_names = NULL;
      goto byebye;
    }

    /* Since the archive is supposed to be printable if it contains
       text, the entries in the list are newline-padded, not null
       padded. In SVR4-style archives, the names also have a
       trailing '/'.  We'll fix both problems here..  */
      {
	char *temp = bfd_ardata (abfd)->extended_names;
	char *limit = temp + namedata->parsed_size;
	for (; temp < limit; ++temp)
	  if (*temp == '\n')
	    temp[temp[-1] == '/' ? -1 : 0] = '\0';
      }
  
    /* Pad to an even boundary if you have to */
    bfd_ardata (abfd)->first_file_filepos = bfd_tell (abfd);
    bfd_ardata (abfd)->first_file_filepos +=
      (bfd_ardata (abfd)->first_file_filepos) %2;

    /* FIXME, we can't release namedata here because it was allocated
       below extended_names on the obstack... */
    /* bfd_release (abfd, namedata); */
  }
  return true;
}

#ifdef VMS

/* Return a copy of the stuff in the filename between any :]> and a
   semicolon */
static CONST char *
DEFUN(normalize,(file),
      CONST char *file)
{
  CONST char *first;
  CONST char *last;
  char *copy;

  first = file + strlen(file)-1;
  last = first+1;

  while (first != file) 
  {
    if (*first == ';') 
     last = first;
    if (*first == ':' || *first == ']' ||*first == '>') 
    { 
      first++;
      break;
    }
    first --;
  }
  

  copy = malloc(last - first + 1);
  memcpy(copy, first, last-first);
  copy[last-first] = 0;

  return copy;
}

#else
static
CONST char *normalize(file)
CONST char *file;
{
  CONST char *    filename = strrchr(file, '/');

  if (filename != (char *)NULL) {
      filename ++;
    }
  else {
      filename = file;
    }
  return filename;
}
#endif
/* Follows archive_head and produces an extended name table if necessary.
   Returns (in tabloc) a pointer to an extended name table, and in tablen
   the length of the table.  If it makes an entry it clobbers the filename
   so that the element may be written without further massage.
   Returns true if it ran successfully, false if something went wrong.
   A successful return may still involve a zero-length tablen!
   */
boolean
bfd_construct_extended_name_table (abfd, tabloc, tablen)
     bfd *abfd;
     char **tabloc;
     unsigned int *tablen;
{
  unsigned int maxname = abfd->xvec->ar_max_namelen;
  unsigned int total_namelen = 0;
  bfd *current;
  char *strptr;

  *tablen = 0;
  
  /* Figure out how long the table should be */
  for (current = abfd->archive_head; current != NULL; current = current->next){
    unsigned int thislen = strlen (normalize(current->filename));
    if (thislen > maxname) total_namelen += thislen + 1; /* leave room for \n */
  }

  if (total_namelen == 0) return true;

  *tabloc = bfd_zalloc (abfd,total_namelen);
  if (*tabloc == NULL) {
    bfd_error = no_memory;
    return false;
  }

  *tablen = total_namelen;
  strptr = *tabloc;

  for (current = abfd->archive_head; current != NULL; current =
       current->next) {
    CONST char *normal =normalize( current->filename);
    unsigned int thislen = strlen (normal);
    if (thislen > maxname) {
      /* Works for now; may need to be re-engineered if we encounter an oddball
	 archive format and want to generalise this hack. */
      struct ar_hdr *hdr = arch_hdr(current);
      strcpy (strptr, normal);
      strptr[thislen] = '\n';
      hdr->ar_name[0] = ' ';
      /* We know there will always be enough room (one of the few cases
	 where you may safely use sprintf). */
      sprintf ((hdr->ar_name) + 1, "%-d", (unsigned) (strptr - *tabloc));
      /* Kinda Kludgy.   We should just use the returned value of sprintf
	 but not all implementations get this right */
	{
	  char *temp = hdr->ar_name +2; 
	  for (; temp < hdr->ar_name + maxname; temp++)
	    if (*temp == '\0') *temp = ' ';
	}
      strptr += thislen + 1;
    }
  }

  return true;
}

/** A couple of functions for creating ar_hdrs */

/* Takes a filename, returns an arelt_data for it, or NULL if it can't make one.
   The filename must refer to a filename in the filesystem.
   The filename field of the ar_hdr will NOT be initialized
*/

struct areltdata *
DEFUN(bfd_ar_hdr_from_filesystem, (abfd,filename),
      bfd* abfd AND
      CONST char *filename)
{
  struct stat status;
  struct areltdata *ared;
  struct ar_hdr *hdr;
  char *temp, *temp1;


  if (stat (filename, &status) != 0) {
    bfd_error = system_call_error;
    return NULL;
  }

  ared = (struct areltdata *) bfd_zalloc(abfd, sizeof (struct ar_hdr) +
				      sizeof (struct areltdata));
  if (ared == NULL) {
    bfd_error = no_memory;
    return NULL;
  }
  hdr = (struct ar_hdr *) (((char *) ared) + sizeof (struct areltdata));

  /* ar headers are space padded, not null padded! */
  temp = (char *) hdr;
  temp1 = temp + sizeof (struct ar_hdr) - 2;
  for (; temp < temp1; *(temp++) = ' ');
  strncpy (hdr->ar_fmag, ARFMAG, 2);
  
  /* Goddamned sprintf doesn't permit MAXIMUM field lengths */
  sprintf ((hdr->ar_date), "%-12ld", status.st_mtime);
  sprintf ((hdr->ar_uid), "%d", status.st_uid);
  sprintf ((hdr->ar_gid), "%d", status.st_gid);
  sprintf ((hdr->ar_mode), "%-8o", (unsigned) status.st_mode);
  sprintf ((hdr->ar_size), "%-10ld", status.st_size);
  /* Correct for a lossage in sprintf whereby it null-terminates.  I cannot
     understand how these C losers could design such a ramshackle bunch of
     IO operations */
  temp = (char *) hdr;
  temp1 = temp + sizeof (struct ar_hdr) - 2;
  for (; temp < temp1; temp++) {
    if (*temp == '\0') *temp = ' ';
  }
  strncpy (hdr->ar_fmag, ARFMAG, 2);
  ared->parsed_size = status.st_size;
  ared->arch_header = (char *) hdr;

  return ared;
}

/* This is magic required by the "ar" program.  Since it's
    undocumented, it's undocumented.   You may think that it would
    take a strong stomach to write this, and it does, but it takes
    even a stronger stomach to try to code around such a thing!
*/

struct ar_hdr *
DEFUN(bfd_special_undocumented_glue, (abfd, filename),
      bfd *abfd AND
      char *filename)
{
  struct areltdata *ar_elt = bfd_ar_hdr_from_filesystem (abfd, filename);
  if (ar_elt == NULL)
      return NULL;
  return (struct ar_hdr *) ar_elt->arch_header;
}


/* Analogous to stat call */
int
bfd_generic_stat_arch_elt (abfd, buf)
     bfd *abfd;
     struct stat *buf;
{
  struct ar_hdr *hdr;
  char *aloser;
  
  if (abfd->arelt_data == NULL) {
    bfd_error = invalid_operation;
    return -1;
  }
    
  hdr = arch_hdr (abfd);

#define foo(arelt, stelt, size)  \
  buf->stelt = strtol (hdr->arelt, &aloser, size); \
  if (aloser == hdr->arelt) return -1;
  
  foo (ar_date, st_mtime, 10);
  foo (ar_uid, st_uid, 10);
  foo (ar_gid, st_gid, 10);
  foo (ar_mode, st_mode, 8);
  foo (ar_size, st_size, 10);

  return 0;
}

void
bfd_dont_truncate_arname (abfd, pathname, arhdr)
     bfd *abfd;
     CONST char *pathname;
     char *arhdr;
{
  /* FIXME: This interacts unpleasantly with ar's quick-append option.
     Fortunately ic960 users will never use that option.  Fixing this
     is very hard; fortunately I know how to do it and will do so once
     intel's release is out the door. */
   
  struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
  int length;
  CONST char *filename = normalize(pathname);
  int maxlen = ar_maxnamelen (abfd);

  length = strlen (filename);

  if (length <= maxlen)
    memcpy (hdr->ar_name, filename, length);

  if (length < maxlen) (hdr->ar_name)[length] = ar_padchar (abfd);
  return;

}

void
bfd_bsd_truncate_arname (abfd, pathname, arhdr)
     bfd *abfd;
     CONST char *pathname;
     char *arhdr;
{
  struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
  int length;
  CONST char *filename = strrchr (pathname, '/');
  int maxlen = ar_maxnamelen (abfd);


  if (filename == NULL)
    filename = pathname;
  else
    ++filename;

  length = strlen (filename);

  if (length <= maxlen)
    memcpy (hdr->ar_name, filename, length);
  else {
    /* pathname: meet procrustes */
    memcpy (hdr->ar_name, filename, maxlen);
    length = maxlen;
  }

  if (length < maxlen) (hdr->ar_name)[length] = ar_padchar (abfd);
}

/* Store name into ar header.  Truncates the name to fit.
   1> strip pathname to be just the basename.
   2> if it's short enuf to fit, stuff it in.
   3> If it doesn't end with .o, truncate it to fit
   4> truncate it before the .o, append .o, stuff THAT in.
*/

/* This is what gnu ar does.  It's better but incompatible with the bsd ar. */
void
bfd_gnu_truncate_arname (abfd, pathname, arhdr)
     bfd *abfd;
     CONST char *pathname;
     char *arhdr;
{
  struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
  int length;
  CONST char *filename = strrchr (pathname, '/');
  int maxlen = ar_maxnamelen (abfd);
	
  if (filename == NULL)
    filename = pathname;
  else
    ++filename;

  length = strlen (filename);

  if (length <= maxlen)
    memcpy (hdr->ar_name, filename, length);
  else {			/* pathname: meet procrustes */
    memcpy (hdr->ar_name, filename, maxlen);
    if ((filename[length - 2] == '.') && (filename[length - 1] == 'o')) {
      hdr->ar_name[maxlen - 2] = '.';
      hdr->ar_name[maxlen - 1] = 'o';
    }
    length = maxlen;
  }

  if (length < 16) (hdr->ar_name)[length] = ar_padchar (abfd);
}


PROTO (boolean, compute_and_write_armap, (bfd *arch, unsigned int elength));

/* The BFD is open for write and has its format set to bfd_archive */
boolean
_bfd_write_archive_contents (arch)
     bfd *arch;
{
  bfd *current;
  char *etable = NULL;
  unsigned int elength = 0;

  boolean makemap = bfd_has_map (arch);
  boolean hasobjects = false;	/* if no .o's, don't bother to make a map */
  unsigned int i;

  /* Verify the viability of all entries; if any of them live in the
     filesystem (as opposed to living in an archive open for input)
     then construct a fresh ar_hdr for them.
     */
  for (current = arch->archive_head; current; current = current->next) {
    if (bfd_write_p (current)) {
      bfd_error = invalid_operation;
      return false;
    }
    if (!current->arelt_data) {
      current->arelt_data =
	  (PTR) bfd_ar_hdr_from_filesystem (arch, current->filename);
      if (!current->arelt_data) return false;

      /* Put in the file name */
    
    BFD_SEND (arch, _bfd_truncate_arname,(arch, 
					  current->filename,
					 (char *) arch_hdr(current)));

      
    }

    if (makemap) {		/* don't bother if we won't make a map! */
      if ((bfd_check_format (current, bfd_object))
#if 0				/* FIXME -- these are not set correctly */
	  && ((bfd_get_file_flags (current) & HAS_SYMS))
#endif
	  )
	hasobjects = true;
    }
  }

  if (!bfd_construct_extended_name_table (arch, &etable, &elength))
    return false;

  bfd_seek (arch, (file_ptr) 0, SEEK_SET);
#ifdef GNU960
  bfd_write (BFD_GNU960_ARMAG(arch), 1, SARMAG, arch);
#else
  bfd_write (ARMAG, 1, SARMAG, arch);
#endif

  if (makemap && hasobjects) {

    if (compute_and_write_armap (arch, elength) != true) {
      return false;
    }
  }

  if (elength != 0) {
    struct ar_hdr hdr;

    memset ((char *)(&hdr), 0, sizeof (struct ar_hdr));
    sprintf (&(hdr.ar_name[0]), "ARFILENAMES/");
    sprintf (&(hdr.ar_size[0]), "%-10d", (int) elength);
    hdr.ar_fmag[0] = '`'; hdr.ar_fmag[1] = '\n';
    for (i = 0; i < sizeof (struct ar_hdr); i++)
      if (((char *)(&hdr))[i] == '\0') (((char *)(&hdr))[i]) = ' ';
    bfd_write ((char *)&hdr, 1, sizeof (struct ar_hdr), arch);
    bfd_write (etable, 1, elength, arch);
    if ((elength % 2) == 1) bfd_write ("\n", 1, 1, arch);

  }

  for (current = arch->archive_head; current; current = current->next) {
    char buffer[DEFAULT_BUFFERSIZE];
    unsigned int remaining = arelt_size (current);
    struct ar_hdr *hdr = arch_hdr(current);
    /* write ar header */

    if (bfd_write ((char *)hdr, 1, sizeof(*hdr), arch) != sizeof(*hdr)) {
    syserr:
	bfd_error = system_call_error;
	return false;
      }
    if (bfd_seek (current, (file_ptr) 0, SEEK_SET) != 0) goto syserr;
    while (remaining) 
	{
	  unsigned int amt = DEFAULT_BUFFERSIZE;
	  if (amt > remaining) {
	    amt = remaining;
	  }
	  errno = 0;
	  if (bfd_read (buffer, amt, 1, current) != amt) {
	      if (errno) goto syserr;
	      /* Looks like a truncated archive. */
	      bfd_error = malformed_archive;
	      return false;
	  }
	  if (bfd_write (buffer, amt, 1, arch)   != amt) goto syserr;
	  remaining -= amt;
	}
    if ((arelt_size (current) % 2) == 1) bfd_write ("\n", 1, 1, arch);
  }
return true;
}

/* Note that the namidx for the first symbol is 0 */

boolean
compute_and_write_armap (arch, elength)
     bfd *arch;
     unsigned int elength;
{
    bfd *current;
    file_ptr elt_no = 0;
    struct orl *map;
    int orl_max = 15000;	/* fine initial default */
    int orl_count = 0;
    int stridx = 0;		/* string index */

    /* Dunno if this is the best place for this info... */
    if (elength != 0) elength += sizeof (struct ar_hdr);
    elength += elength %2 ;

    map = (struct orl *) bfd_zalloc (arch,orl_max * sizeof (struct orl));
    if (map == NULL) {
	    bfd_error = no_memory;
	    return false;
	}

    /* Drop all the files called __.SYMDEF, we're going to make our
       own */
    while (arch->archive_head   &&
	   strcmp(arch->archive_head->filename,"__.SYMDEF") == 0) 
    {
	arch->archive_head = arch->archive_head->next;
    }
    /* Map over each element */
    for (current = arch->archive_head;
	 current != (bfd *)NULL;
	 current = current->next, elt_no++) 
    {
	if ((bfd_check_format (current, bfd_object) == true)
	    && ((bfd_get_file_flags (current) & HAS_SYMS))) {
		asymbol **syms;
		unsigned int storage;
		unsigned int symcount;
		unsigned int src_count;

		storage = get_symtab_upper_bound (current);
		if (storage != 0) {

			syms = (asymbol **) bfd_zalloc (arch,storage);
			if (syms == NULL) {
				bfd_error = no_memory; /* FIXME -- memory leak */
				return false;
			    }
			symcount = bfd_canonicalize_symtab (current, syms);


			/* Now map over all the symbols, picking out the ones we want */
			for (src_count = 0; src_count <symcount; src_count++) {
				flagword flags =
				 (syms[src_count])->flags;
				asection  *sec =
				 syms[src_count]->section;
				
				if ((flags & BSF_GLOBAL ||
				    flags & BSF_INDIRECT ||
				    sec == &bfd_com_section)
				    && (sec != &bfd_und_section)) {

					/* This symbol will go into the archive header */
					if (orl_count == orl_max) 
					{
					    orl_max *= 2;
					    map = (struct orl *) bfd_realloc (arch, (char *) map,
									      orl_max * sizeof (struct orl));
					}

					(map[orl_count]).name = (char **) &((syms[src_count])->name);
					(map[orl_count]).pos = (file_ptr) current;
					(map[orl_count]).namidx = stridx;

					stridx += strlen ((syms[src_count])->name) + 1;
					++orl_count;
				    }
			    }
		    }
	    }
    }
    /* OK, now we have collected all the data, let's write them out */
    if (!BFD_SEND (arch, write_armap,
		   (arch, elength, map, orl_count, stridx))) {

	    return false;
	}


    return true;
}

boolean
bsd_write_armap (arch, elength, map, orl_count, stridx)
     bfd *arch;
     unsigned int elength;
     struct orl *map;
     unsigned int orl_count;
     int stridx;
{
  int padit = stridx & 1;
  unsigned int ranlibsize = orl_count * sizeof (struct ranlib);
  unsigned int stringsize = stridx + padit;
  /* Include 8 bytes to store ranlibsize and stringsize in output. */
  unsigned int mapsize = ranlibsize + stringsize + 8;
  file_ptr firstreal;
  bfd *current = arch->archive_head;
  bfd *last_elt = current;	/* last element arch seen */
  int temp;
  int count;
  struct ar_hdr hdr;
  struct stat statbuf;
  unsigned int i;

  firstreal = mapsize + elength + sizeof (struct ar_hdr) + SARMAG;

  stat (arch->filename, &statbuf);
  memset ((char *)(&hdr), 0, sizeof (struct ar_hdr));
  sprintf (hdr.ar_name, RANLIBMAG);

  /* write the timestamp of the archive header to be just a little bit
     later than the timestamp of the file, otherwise the linker will
     complain that the index is out of date.
     */

  sprintf (hdr.ar_date, "%ld", statbuf.st_mtime + 60);  
  sprintf (hdr.ar_uid, "%d", getuid());
  sprintf (hdr.ar_gid, "%d", getgid());
  sprintf (hdr.ar_size, "%-10d", (int) mapsize);
  hdr.ar_fmag[0] = '`'; hdr.ar_fmag[1] = '\n';
  for (i = 0; i < sizeof (struct ar_hdr); i++)
   if (((char *)(&hdr))[i] == '\0') (((char *)(&hdr))[i]) = ' ';
  bfd_write ((char *)&hdr, 1, sizeof (struct ar_hdr), arch);
  bfd_h_put_32(arch, ranlibsize, (PTR)&temp);
  bfd_write (&temp, 1, sizeof (temp), arch);
  
  for (count = 0; count < orl_count; count++) {
    struct symdef outs;
    struct symdef *outp = &outs;
    
    if (((bfd *)(map[count]).pos) != last_elt) {
      do {
	firstreal += arelt_size (current) + sizeof (struct ar_hdr);
	firstreal += firstreal % 2;
	current = current->next;
      } while (current != (bfd *)(map[count]).pos);
    }				/* if new archive element */

    last_elt = current;
    bfd_h_put_32(arch, ((map[count]).namidx),(PTR) &outs.s.string_offset);
    bfd_h_put_32(arch, firstreal,(PTR) &outs.file_offset);
    bfd_write ((char *)outp, 1, sizeof (outs), arch);
  }

  /* now write the strings themselves */
  bfd_h_put_32(arch, stringsize, (PTR)&temp);
  bfd_write ((PTR)&temp, 1, sizeof (temp), arch);
  for (count = 0; count < orl_count; count++)
   bfd_write (*((map[count]).name), 1, strlen (*((map[count]).name))+1, arch);

  /* The spec sez this should be a newline.  But in order to be
     bug-compatible for sun's ar we use a null. */
  if (padit)
   bfd_write("\0",1,1,arch);

  return true;
}


/* A coff armap looks like :
 lARMAG
 struct ar_hdr with name = '/' 
 number of symbols
 offset of file for symbol 0
 offset of file for symbol 1

 offset of file for symbol n-1
 symbol name 0
 symbol name 1	
 
 symbol name n-1

*/

boolean
coff_write_armap (arch, elength, map, symbol_count, stridx)
     bfd *arch;
     unsigned int elength;
     struct orl *map;
     unsigned int symbol_count;
     int stridx;
{
    /* The size of the ranlib is the number of exported symbols in the
       archive * the number of bytes in a int, + an int for the count */

    unsigned int ranlibsize = (symbol_count * 4) + 4;
    unsigned int stringsize = stridx;
    unsigned int mapsize = stringsize + ranlibsize;
    file_ptr archive_member_file_ptr;
    bfd *current = arch->archive_head;
    int count;
    struct ar_hdr hdr;
    unsigned int i;
    int padit = mapsize & 1;
  
    if (padit) mapsize ++;

    /* work out where the first object file will go in the archive */
    archive_member_file_ptr =   mapsize + elength + sizeof (struct ar_hdr) + SARMAG;

    memset ((char *)(&hdr), 0, sizeof (struct ar_hdr));
    hdr.ar_name[0] = '/';
    sprintf (hdr.ar_size, "%-10d", (int) mapsize);
    sprintf (hdr.ar_date, "%ld", (long)time (NULL));
    /* This, at least, is what Intel coff sets the values to.: */
    sprintf ((hdr.ar_uid), "%d", 0);
    sprintf ((hdr.ar_gid), "%d", 0);
    sprintf ((hdr.ar_mode), "%-7o",(unsigned ) 0);
    hdr.ar_fmag[0] = '`'; hdr.ar_fmag[1] = '\n';

    for (i = 0; i < sizeof (struct ar_hdr); i++)
     if (((char *)(&hdr))[i] == '\0') (((char *)(&hdr))[i]) = ' ';

    /* Write the ar header for this item and the number of symbols */

  
    bfd_write ((PTR)&hdr, 1, sizeof (struct ar_hdr), arch);

    bfd_write_bigendian_4byte_int(arch, symbol_count);

    /* Two passes, first write the file offsets for each symbol -
       remembering that each offset is on a two byte boundary.  */

    /* Write out the file offset for the file associated with each
       symbol, and remember to keep the offsets padded out.  */

    current = arch->archive_head;
    count = 0;
    while (current != (bfd *)NULL && count < symbol_count) {
	/* For each symbol which is used defined in this object, write out
	   the object file's address in the archive */
    
	while (((bfd *)(map[count]).pos) == current) {
	    bfd_write_bigendian_4byte_int(arch, archive_member_file_ptr);
	    count++;
	}
	/* Add size of this archive entry */
	archive_member_file_ptr += arelt_size (current) + sizeof (struct
								  ar_hdr);
	/* remember aboout the even alignment */
	archive_member_file_ptr += archive_member_file_ptr % 2;
	current = current->next;
    }  



    /* now write the strings themselves */
    for (count = 0; count < symbol_count; count++) {
	bfd_write ((PTR)*((map[count]).name),
		   1,
		   strlen (*((map[count]).name))+1, arch);

    }
    /* The spec sez this should be a newline.  But in order to be
       bug-compatible for arc960 we use a null. */
    if (padit)
     bfd_write("\0",1,1,arch);

    return true;
}