aboutsummaryrefslogtreecommitdiff
path: root/gdb/remote-adapt.c
blob: f370d3850eaac49b13ad4eab530310c63760592d (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
/* Remote debugging interface for AMD 290*0 Adapt Monitor Version 2.1d18. 
   Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
   Contributed by David Wood at New York University (wood@lab.ultra.nyu.edu).
   Adapted from work done at Cygnus Support in remote-eb.c.

   This file is part of GDB.

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

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

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

/* This is like remote.c but is for an esoteric situation--
   having a 29k board attached to an Adapt inline monitor. 
   The  monitor is connected via serial line to a unix machine 
   running gdb. 

   3/91 -  developed on Sun3 OS 4.1, by David Wood
   o - I can't get binary coff to load. 
   o - I can't get 19200 baud rate to work. 
   7/91 o - Freeze mode tracing can be done on a 29050.  */



#include "defs.h"
#include "gdb_string.h"
#include "inferior.h"
#include "gdb_wait.h"
#include "value.h"
#include <ctype.h>
#include <fcntl.h>
#include <signal.h>
#include <errno.h>
#include "terminal.h"
#include "target.h"
#include "gdbcore.h"

/* This processor is getting rusty but I am trying to keep it
   up to date at least with data structure changes.
   Activate this block to compile just this file.
 */
#define COMPILE_CHECK 0
#if COMPILE_CHECK
#define Q_REGNUM 0
#define VAB_REGNUM 0
#define CPS_REGNUM 0
#define IPA_REGNUM 0
#define IPB_REGNUM 0
#define GR1_REGNUM 0
#define LR0_REGNUM 0
#define IPC_REGNUM 0
#define CR_REGNUM 0
#define BP_REGNUM 0
#define FC_REGNUM 0
#define INTE_REGNUM 0
#define EXO_REGNUM 0
#define GR96_REGNUM 0
#define NPC_REGNUM
#define FPE_REGNUM 0
#define PC2_REGNUM 0
#define FPS_REGNUM 0
#define ALU_REGNUM 0
#define LRU_REGNUM 0
#define TERMINAL int
#define RAW 1
#define ANYP 1
extern int a29k_freeze_mode;
extern int processor_type;
extern char *processor_name;
#endif

/* External data declarations */
extern int stop_soon_quietly;	/* for wait_for_inferior */

/* Forward data declarations */
extern struct target_ops adapt_ops;	/* Forward declaration */

/* Forward function declarations */
static void adapt_fetch_registers ();
static void adapt_store_registers ();
static void adapt_close ();
static int adapt_clear_breakpoints ();

#define FREEZE_MODE 	(read_register(CPS_REGNUM) && 0x400)
#define USE_SHADOW_PC	((processor_type == a29k_freeze_mode) && FREEZE_MODE)

/* Can't seem to get binary coff working */
#define ASCII_COFF		/* Adapt will be downloaded with ascii coff */

/* FIXME: Replace with `set remotedebug'.  */
#define LOG_FILE "adapt.log"
#if defined (LOG_FILE)
FILE *log_file = NULL;
#endif

static int timeout = 5;
static char *dev_name;

/* Descriptor for I/O to remote machine.  Initialize it to -1 so that
   adapt_open knows that we don't have a file open when the program
   starts.  */
int adapt_desc = -1;

/* stream which is fdopen'd from adapt_desc.  Only valid when
   adapt_desc != -1.  */
FILE *adapt_stream;

#define ON	1
#define OFF	0
static void
rawmode (int desc, int turnon)
{

  TERMINAL sg;

  if (desc < 0)
    return;

  ioctl (desc, TIOCGETP, &sg);

  if (turnon)
    {
#ifdef HAVE_TERMIO
      sg.c_lflag &= ~(ICANON);
#else
      sg.sg_flags |= RAW;
#endif
    }
  else
    {
#ifdef HAVE_TERMIO
      sg.c_lflag |= ICANON;
#else
      sg.sg_flags &= ~(RAW);
#endif
    }
  ioctl (desc, TIOCSETP, &sg);
}

/* Suck up all the input from the adapt */
slurp_input (void)
{
  char buf[8];

#ifdef HAVE_TERMIO
  /* termio does the timeout for us.  */
  while (read (adapt_desc, buf, 8) > 0);
#else
  alarm (timeout);
  while (read (adapt_desc, buf, 8) > 0);
  alarm (0);
#endif
}

/* Read a character from the remote system, doing all the fancy
   timeout stuff.  */
static int
readchar (void)
{
  char buf;

  buf = '\0';
#ifdef HAVE_TERMIO
  /* termio does the timeout for us.  */
  read (adapt_desc, &buf, 1);
#else
  alarm (timeout);
  if (read (adapt_desc, &buf, 1) < 0)
    {
      if (errno == EINTR)
	error ("Timeout reading from remote system.");
      else
	perror_with_name ("remote");
    }
  alarm (0);
#endif

  if (buf == '\0')
    error ("Timeout reading from remote system.");
#if defined (LOG_FILE)
  putc (buf & 0x7f, log_file);
#endif
  return buf & 0x7f;
}

/* Keep discarding input from the remote system, until STRING is found. 
   Let the user break out immediately.  */
static void
expect (char *string)
{
  char *p = string;

  fflush (adapt_stream);
  immediate_quit++;
  while (1)
    {
      if (readchar () == *p)
	{
	  p++;
	  if (*p == '\0')
	    {
	      immediate_quit--;
	      return;
	    }
	}
      else
	p = string;
    }
}

/* Keep discarding input until we see the adapt prompt.

   The convention for dealing with the prompt is that you
   o give your command
   o *then* wait for the prompt.

   Thus the last thing that a procedure does with the serial line
   will be an expect_prompt().  Exception:  adapt_resume does not
   wait for the prompt, because the terminal is being handed over
   to the inferior.  However, the next thing which happens after that
   is a adapt_wait which does wait for the prompt.
   Note that this includes abnormal exit, e.g. error().  This is
   necessary to prevent getting into states from which we can't
   recover.  */
static void
expect_prompt (void)
{
#if defined (LOG_FILE)
  /* This is a convenient place to do this.  The idea is to do it often
     enough that we never lose much data if we terminate abnormally.  */
  fflush (log_file);
#endif
  fflush (adapt_stream);
  expect ("\n# ");
}

/* Get a hex digit from the remote system & return its value.
   If ignore_space is nonzero, ignore spaces (not newline, tab, etc).  */
static int
get_hex_digit (int ignore_space)
{
  int ch;
  while (1)
    {
      ch = readchar ();
      if (ch >= '0' && ch <= '9')
	return ch - '0';
      else if (ch >= 'A' && ch <= 'F')
	return ch - 'A' + 10;
      else if (ch >= 'a' && ch <= 'f')
	return ch - 'a' + 10;
      else if (ch == ' ' && ignore_space)
	;
      else
	{
	  expect_prompt ();
	  error ("Invalid hex digit from remote system.");
	}
    }
}

/* Get a byte from adapt_desc and put it in *BYT.  Accept any number
   leading spaces.  */
static void
get_hex_byte (char *byt)
{
  int val;

  val = get_hex_digit (1) << 4;
  val |= get_hex_digit (0);
  *byt = val;
}

/* Read a 32-bit hex word from the adapt, preceded by a space  */
static long
get_hex_word (void)
{
  long val;
  int j;

  val = 0;
  for (j = 0; j < 8; j++)
    val = (val << 4) + get_hex_digit (j == 0);
  return val;
}
/* Get N 32-bit hex words from remote, each preceded by a space 
   and put them in registers starting at REGNO.  */
static void
get_hex_regs (int n, int regno)
{
  long val;
  while (n--)
    {
      val = get_hex_word ();
      supply_register (regno++, (char *) &val);
    }
}
/* Called when SIGALRM signal sent due to alarm() timeout.  */
#ifndef HAVE_TERMIO

#ifndef __STDC__
#ifndef volatile
#define volatile
/**/
# endif
#endif
volatile int n_alarms;

void
adapt_timer (void)
{
#if 0
  if (kiodebug)
    printf ("adapt_timer called\n");
#endif
  n_alarms++;
}
#endif

/* malloc'd name of the program on the remote system.  */
static char *prog_name = NULL;

/* Number of SIGTRAPs we need to simulate.  That is, the next
   NEED_ARTIFICIAL_TRAP calls to adapt_wait should just return
   SIGTRAP without actually waiting for anything.  */

static int need_artificial_trap = 0;

void
adapt_kill (char *arg, int from_tty)
{
  fprintf (adapt_stream, "K");
  fprintf (adapt_stream, "\r");
  expect_prompt ();
}
/*
 * Download a file specified in 'args', to the adapt. 
 * FIXME: Assumes the file to download is a binary coff file.
 */
static void
adapt_load (char *args, int fromtty)
{
  FILE *fp;
  int n;
  char buffer[1024];

  if (!adapt_stream)
    {
      printf_filtered ("Adapt not open. Use 'target' command to open adapt\n");
      return;
    }

  /* OK, now read in the file.  Y=read, C=COFF, T=dTe port
     0=start address.  */

#ifdef ASCII_COFF		/* Ascii coff */
  fprintf (adapt_stream, "YA T,0\r");
  fflush (adapt_stream);	/* Just in case */
  /* FIXME: should check args for only 1 argument */
  sprintf (buffer, "cat %s | btoa > /tmp/#adapt-btoa", args);
  system (buffer);
  fp = fopen ("/tmp/#adapt-btoa", "r");
  rawmode (adapt_desc, OFF);
  while (n = fread (buffer, 1, 1024, fp))
    {
      do
	{
	  n -= write (adapt_desc, buffer, n);
	}
      while (n > 0);
      if (n < 0)
	{
	  perror ("writing ascii coff");
	  break;
	}
    }
  fclose (fp);
  rawmode (adapt_desc, ON);
  system ("rm /tmp/#adapt-btoa");
#else /* Binary coff - can't get it to work . */
  fprintf (adapt_stream, "YC T,0\r");
  fflush (adapt_stream);	/* Just in case */
  if (!(fp = fopen (args, "r")))
    {
      printf_filtered ("Can't open %s\n", args);
      return;
    }
  while (n = fread (buffer, 1, 512, fp))
    {
      do
	{
	  n -= write (adapt_desc, buffer, n);
	}
      while (n > 0);
      if (n < 0)
	{
	  perror ("writing ascii coff");
	  break;
	}
    }
  fclose (fp);
#endif
  expect_prompt ();		/* Skip garbage that comes out */
  fprintf (adapt_stream, "\r");
  expect_prompt ();
}

/* This is called not only when we first attach, but also when the
   user types "run" after having attached.  */
void
adapt_create_inferior (char *execfile, char *args, char **env)
{
  int entry_pt;

  if (args && *args)
    error ("Can't pass arguments to remote adapt process.");

  if (execfile == 0 || exec_bfd == 0)
    error ("No executable file specified");

  entry_pt = (int) bfd_get_start_address (exec_bfd);

  if (adapt_stream)
    {
      adapt_kill (NULL, NULL);
      adapt_clear_breakpoints ();
      init_wait_for_inferior ();
      /* Clear the input because what the adapt sends back is different
       * depending on whether it was running or not.
       */
      slurp_input ();		/* After this there should be a prompt */
      fprintf (adapt_stream, "\r");
      expect_prompt ();
      printf_filtered ("Do you want to download '%s' (y/n)? [y] : ", prog_name);
      {
	char buffer[10];
	gets (buffer);
	if (*buffer != 'n')
	  {
	    adapt_load (prog_name, 0);
	  }
      }

#ifdef NOTDEF
      /* Set the PC and wait for a go/cont */
      fprintf (adapt_stream, "G %x,N\r", entry_pt);
      printf_filtered ("Now use the 'continue' command to start.\n");
      expect_prompt ();
#else
      insert_breakpoints ();	/* Needed to get correct instruction in cache */
      proceed (entry_pt, TARGET_SIGNAL_DEFAULT, 0);
#endif

    }
  else
    {
      printf_filtered ("Adapt not open yet.\n");
    }
}

/* Translate baud rates from integers to damn B_codes.  Unix should
   have outgrown this crap years ago, but even POSIX wouldn't buck it.  */

#ifndef B19200
#define B19200 EXTA
#endif
#ifndef B38400
#define B38400 EXTB
#endif

static struct
{
  int rate, damn_b;
}
baudtab[] =
{
  {
    0, B0
  }
  ,
  {
    50, B50
  }
  ,
  {
    75, B75
  }
  ,
  {
    110, B110
  }
  ,
  {
    134, B134
  }
  ,
  {
    150, B150
  }
  ,
  {
    200, B200
  }
  ,
  {
    300, B300
  }
  ,
  {
    600, B600
  }
  ,
  {
    1200, B1200
  }
  ,
  {
    1800, B1800
  }
  ,
  {
    2400, B2400
  }
  ,
  {
    4800, B4800
  }
  ,
  {
    9600, B9600
  }
  ,
  {
    19200, B19200
  }
  ,
  {
    38400, B38400
  }
  ,
  {
    -1, -1
  }
  ,
};

static int
damn_b (int rate)
{
  int i;

  for (i = 0; baudtab[i].rate != -1; i++)
    if (rate == baudtab[i].rate)
      return baudtab[i].damn_b;
  return B38400;		/* Random */
}


/* Open a connection to a remote debugger.
   NAME is the filename used for communication, then a space,
   then the baud rate.
 */

static int baudrate = 9600;
static void
adapt_open (char *name, int from_tty)
{
  TERMINAL sg;
  unsigned int prl;
  char *p;

  /* Find the first whitespace character, it separates dev_name from
     prog_name.  */
  if (name == 0)
    goto erroid;

  for (p = name;
       *p != '\0' && !isspace (*p); p++)
    ;
  if (*p == '\0')
  erroid:
    error ("\
Please include the name of the device for the serial port,\n\
the baud rate, and the name of the program to run on the remote system.");
  dev_name = (char *) xmalloc (p - name + 1);
  strncpy (dev_name, name, p - name);
  dev_name[p - name] = '\0';

  /* Skip over the whitespace after dev_name */
  for (; isspace (*p); p++)
    /*EMPTY */ ;

  if (1 != sscanf (p, "%d ", &baudrate))
    goto erroid;

  /* Skip the number and then the spaces */
  for (; isdigit (*p); p++)
    /*EMPTY */ ;
  for (; isspace (*p); p++)
    /*EMPTY */ ;

  if (prog_name != NULL)
    xfree (prog_name);
  prog_name = savestring (p, strlen (p));

  adapt_close (0);

  adapt_desc = open (dev_name, O_RDWR);
  if (adapt_desc < 0)
    perror_with_name (dev_name);
  ioctl (adapt_desc, TIOCGETP, &sg);
#if ! defined(COMPILE_CHECK)
#ifdef HAVE_TERMIO
  sg.c_cc[VMIN] = 0;		/* read with timeout.  */
  sg.c_cc[VTIME] = timeout * 10;
  sg.c_lflag &= ~(ICANON | ECHO);
  sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate);
#else
  sg.sg_ispeed = damn_b (baudrate);
  sg.sg_ospeed = damn_b (baudrate);
  sg.sg_flags |= RAW | ANYP;
  sg.sg_flags &= ~ECHO;
#endif

  ioctl (adapt_desc, TIOCSETP, &sg);
  adapt_stream = fdopen (adapt_desc, "r+");
#endif /* compile_check */
  push_target (&adapt_ops);

#ifndef HAVE_TERMIO
#ifndef NO_SIGINTERRUPT
  /* Cause SIGALRM's to make reads fail with EINTR instead of resuming
     the read.  */
  if (siginterrupt (SIGALRM, 1) != 0)
    perror ("adapt_open: error in siginterrupt");
#endif

  /* Set up read timeout timer.  */
  if ((void (*)) signal (SIGALRM, adapt_timer) == (void (*)) -1)
    perror ("adapt_open: error in signal");
#endif

#if defined (LOG_FILE)
  log_file = fopen (LOG_FILE, "w");
  if (log_file == NULL)
    perror_with_name (LOG_FILE);
#endif

  /* Put this port into NORMAL mode, send the 'normal' character */
  write (adapt_desc, "", 1);	/* Control A */
  write (adapt_desc, "\r", 1);
  expect_prompt ();

  /* Hello?  Are you there?  */
  write (adapt_desc, "\r", 1);

  expect_prompt ();

  /* Clear any break points */
  adapt_clear_breakpoints ();

  /* Print out some stuff, letting the user now what's going on */
  printf_filtered ("Connected to an Adapt via %s.\n", dev_name);
  /* FIXME: can this restriction be removed? */
  printf_filtered ("Remote debugging using virtual addresses works only\n");
  printf_filtered ("\twhen virtual addresses map 1:1 to physical addresses.\n");
  if (processor_type != a29k_freeze_mode)
    {
      fprintf_filtered (gdb_stderr,
			"Freeze-mode debugging not available, and can only be done on an A29050.\n");
    }
}

/* Close out all files and local state before this target loses control. */

static void
adapt_close (int quitting)
{

  /* Clear any break points */
  adapt_clear_breakpoints ();

  /* Put this port back into REMOTE mode */
  if (adapt_stream)
    {
      fflush (adapt_stream);
      sleep (1);		/* Let any output make it all the way back */
      write (adapt_desc, "R\r", 2);
    }

  /* Due to a bug in Unix, fclose closes not only the stdio stream,
     but also the file descriptor.  So we don't actually close
     adapt_desc.  */
  if (adapt_stream)
    fclose (adapt_stream);	/* This also closes adapt_desc */
  if (adapt_desc >= 0)
    /* close (adapt_desc); */

    /* Do not try to close adapt_desc again, later in the program.  */
    adapt_stream = NULL;
  adapt_desc = -1;

#if defined (LOG_FILE)
  if (log_file)
    {
      if (ferror (log_file))
	printf_filtered ("Error writing log file.\n");
      if (fclose (log_file) != 0)
	printf_filtered ("Error closing log file.\n");
      log_file = NULL;
    }
#endif
}

/* Attach to the target that is already loaded and possibly running */
static void
adapt_attach (char *args, int from_tty)
{

  if (from_tty)
    printf_filtered ("Attaching to remote program %s.\n", prog_name);

  /* Send the adapt a kill. It is ok if it is not already running */
  fprintf (adapt_stream, "K\r");
  fflush (adapt_stream);
  expect_prompt ();		/* Slurp the echo */
}


/* Terminate the open connection to the remote debugger.
   Use this when you want to detach and do something else
   with your gdb.  */
void
adapt_detach (char *args, int from_tty)
{

  if (adapt_stream)
    {				/* Send it on its way (tell it to continue)  */
      adapt_clear_breakpoints ();
      fprintf (adapt_stream, "G\r");
    }

  pop_target ();		/* calls adapt_close to do the real work */
  if (from_tty)
    printf_filtered ("Ending remote %s debugging\n", target_shortname);
}

/* Tell the remote machine to resume.  */

void
adapt_resume (int pid, int step, enum target_signal sig)
{
  if (step)
    {
      write (adapt_desc, "t 1,s\r", 6);
      /* Wait for the echo.  */
      expect ("t 1,s\r\n");
      /* Then comes a line containing the instruction we stepped to.  */
      expect ("@");
      /* Then we get the prompt.  */
      expect_prompt ();

      /* Force the next adapt_wait to return a trap.  Not doing anything
         about I/O from the target means that the user has to type
         "continue" to see any.  FIXME, this should be fixed.  */
      need_artificial_trap = 1;
    }
  else
    {
      write (adapt_desc, "G\r", 2);
      /* Swallow the echo.  */
      expect_prompt ();
    }
}

/* Wait until the remote machine stops, then return,
   storing status in STATUS just as `wait' would.  */

int
adapt_wait (struct target_waitstatus *status)
{
  /* Strings to look for.  '?' means match any single character.  
     Note that with the algorithm we use, the initial character
     of the string cannot recur in the string, or we will not
     find some cases of the string in the input.  */

  static char bpt[] = "@";
  /* It would be tempting to look for "\n[__exit + 0x8]\n"
     but that requires loading symbols with "yc i" and even if
     we did do that we don't know that the file has symbols.  */
  static char exitmsg[] = "@????????I    JMPTI     GR121,LR0";
  char *bp = bpt;
  char *ep = exitmsg;

  /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars.  */
  char swallowed[50];
  /* Current position in swallowed.  */
  char *swallowed_p = swallowed;

  int ch;
  int ch_handled;
  int old_timeout = timeout;
  int old_immediate_quit = immediate_quit;

  status->kind = TARGET_WAITKIND_EXITED;
  status->value.integer = 0;

  if (need_artificial_trap != 0)
    {
      status->kind = TARGET_WAITKIND_STOPPED;
      status->value.sig = TARGET_SIGNAL_TRAP;
      need_artificial_trap--;
      return 0;
    }

  timeout = 0;			/* Don't time out -- user program is running. */
  immediate_quit = 1;		/* Helps ability to QUIT */
  while (1)
    {
      QUIT;			/* Let user quit and leave process running */
      ch_handled = 0;
      ch = readchar ();
      if (ch == *bp)
	{
	  bp++;
	  if (*bp == '\0')
	    break;
	  ch_handled = 1;

	  *swallowed_p++ = ch;
	}
      else
	bp = bpt;
      if (ch == *ep || *ep == '?')
	{
	  ep++;
	  if (*ep == '\0')
	    break;

	  if (!ch_handled)
	    *swallowed_p++ = ch;
	  ch_handled = 1;
	}
      else
	ep = exitmsg;
      if (!ch_handled)
	{
	  char *p;
	  /* Print out any characters which have been swallowed.  */
	  for (p = swallowed; p < swallowed_p; ++p)
	    putc (*p, stdout);
	  swallowed_p = swallowed;
	  putc (ch, stdout);
	}
    }
  expect_prompt ();
  if (*bp == '\0')
    {
      status->kind = TARGET_WAITKIND_STOPPED;
      status->value.sig = TARGET_SIGNAL_TRAP;
    }
  else
    {
      status->kind = TARGET_WAITKIND_EXITED;
      status->value.integer = 0;
    }
  timeout = old_timeout;
  immediate_quit = old_immediate_quit;
  return 0;
}

/* Return the name of register number REGNO
   in the form input and output by adapt.

   Returns a pointer to a static buffer containing the answer.  */
static char *
get_reg_name (int regno)
{
  static char buf[80];
  if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32)
    sprintf (buf, "GR%03d", regno - GR96_REGNUM + 96);
#if defined(GR64_REGNUM)
  else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32)
    sprintf (buf, "GR%03d", regno - GR64_REGNUM + 64);
#endif
  else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
    sprintf (buf, "LR%03d", regno - LR0_REGNUM);
  else if (regno == Q_REGNUM)
    strcpy (buf, "SR131");
  else if (regno >= BP_REGNUM && regno <= CR_REGNUM)
    sprintf (buf, "SR%03d", regno - BP_REGNUM + 133);
  else if (regno == ALU_REGNUM)
    strcpy (buf, "SR132");
  else if (regno >= IPC_REGNUM && regno <= IPB_REGNUM)
    sprintf (buf, "SR%03d", regno - IPC_REGNUM + 128);
  else if (regno >= VAB_REGNUM && regno <= LRU_REGNUM)
    {
      /* When a 29050 is in freeze-mode, read shadow pcs instead */
      if ((regno >= NPC_REGNUM && regno <= PC2_REGNUM) && USE_SHADOW_PC)
	sprintf (buf, "SR%03d", regno - NPC_REGNUM + 20);
      else
	sprintf (buf, "SR%03d", regno - VAB_REGNUM);
    }
  else if (regno == GR1_REGNUM)
    strcpy (buf, "GR001");
  return buf;
}

/* Read the remote registers.  */

static void
adapt_fetch_registers (void)
{
  int reg_index;
  int regnum_index;
  char tempbuf[10];
  int sreg_buf[16];
  int i, j;

/* 
 * Global registers
 */
#if defined(GR64_REGNUM)
  write (adapt_desc, "dw gr64,gr95\r", 13);
  for (reg_index = 64, regnum_index = GR64_REGNUM;
       reg_index < 96;
       reg_index += 4, regnum_index += 4)
    {
      sprintf (tempbuf, "GR%03d ", reg_index);
      expect (tempbuf);
      get_hex_regs (4, regnum_index);
      expect ("\n");
    }
#endif
  write (adapt_desc, "dw gr96,gr127\r", 14);
  for (reg_index = 96, regnum_index = GR96_REGNUM;
       reg_index < 128;
       reg_index += 4, regnum_index += 4)
    {
      sprintf (tempbuf, "GR%03d ", reg_index);
      expect (tempbuf);
      get_hex_regs (4, regnum_index);
      expect ("\n");
    }

/* 
 * Local registers
 */
  for (i = 0; i < 128; i += 32)
    {
      /* The PC has a tendency to hang if we get these
         all in one fell swoop ("dw lr0,lr127").  */
      sprintf (tempbuf, "dw lr%d\r", i);
      write (adapt_desc, tempbuf, strlen (tempbuf));
      for (reg_index = i, regnum_index = LR0_REGNUM + i;
	   reg_index < i + 32;
	   reg_index += 4, regnum_index += 4)
	{
	  sprintf (tempbuf, "LR%03d ", reg_index);
	  expect (tempbuf);
	  get_hex_regs (4, regnum_index);
	  expect ("\n");
	}
    }

/* 
 * Special registers
 */
  sprintf (tempbuf, "dw sr0\r");
  write (adapt_desc, tempbuf, strlen (tempbuf));
  for (i = 0; i < 4; i++)
    {				/* SR0 - SR14 */
      sprintf (tempbuf, "SR%3d", i * 4);
      expect (tempbuf);
      for (j = 0; j < (i == 3 ? 3 : 4); j++)
	sreg_buf[i * 4 + j] = get_hex_word ();
    }
  expect_prompt ();
  /* 
   * Read the pcs individually if we are in freeze mode.
   * See get_reg_name(), it translates the register names for the pcs to
   * the names of the shadow pcs.
   */
  if (USE_SHADOW_PC)
    {
      sreg_buf[10] = read_register (NPC_REGNUM);	/* pc0 */
      sreg_buf[11] = read_register (PC_REGNUM);		/* pc1 */
      sreg_buf[12] = read_register (PC2_REGNUM);	/* pc2 */
    }
  for (i = 0; i < 14; i++)	/* Supply vab -> lru */
    supply_register (VAB_REGNUM + i, (char *) &sreg_buf[i]);
  sprintf (tempbuf, "dw sr128\r");
  write (adapt_desc, tempbuf, strlen (tempbuf));
  for (i = 0; i < 2; i++)
    {				/* SR128 - SR135 */
      sprintf (tempbuf, "SR%3d", 128 + i * 4);
      expect (tempbuf);
      for (j = 0; j < 4; j++)
	sreg_buf[i * 4 + j] = get_hex_word ();
    }
  expect_prompt ();
  supply_register (IPC_REGNUM, (char *) &sreg_buf[0]);
  supply_register (IPA_REGNUM, (char *) &sreg_buf[1]);
  supply_register (IPB_REGNUM, (char *) &sreg_buf[2]);
  supply_register (Q_REGNUM, (char *) &sreg_buf[3]);
  /* Skip ALU */
  supply_register (BP_REGNUM, (char *) &sreg_buf[5]);
  supply_register (FC_REGNUM, (char *) &sreg_buf[6]);
  supply_register (CR_REGNUM, (char *) &sreg_buf[7]);

  /* There doesn't seem to be any way to get these.  */
  {
    int val = -1;
    supply_register (FPE_REGNUM, (char *) &val);
    supply_register (INTE_REGNUM, (char *) &val);
    supply_register (FPS_REGNUM, (char *) &val);
    supply_register (EXO_REGNUM, (char *) &val);
  }

  write (adapt_desc, "dw gr1,gr1\r", 11);
  expect ("GR001 ");
  get_hex_regs (1, GR1_REGNUM);
  expect_prompt ();
}

/* Fetch register REGNO, or all registers if REGNO is -1.
 */
static void
adapt_fetch_register (int regno)
{
  if (regno == -1)
    adapt_fetch_registers ();
  else
    {
      char *name = get_reg_name (regno);
      fprintf (adapt_stream, "dw %s,%s\r", name, name);
      expect (name);
      expect (" ");
      get_hex_regs (1, regno);
      expect_prompt ();
    }
}

/* Store the remote registers from the contents of the block REGS.  */

static void
adapt_store_registers (void)
{
  int i, j;

  fprintf (adapt_stream, "s gr1,%x\r", read_register (GR1_REGNUM));
  expect_prompt ();

#if defined(GR64_REGNUM)
  for (j = 0; j < 32; j += 16)
    {
      fprintf (adapt_stream, "s gr%d,", j + 64);
      for (i = 0; i < 15; ++i)
	fprintf (adapt_stream, "%x,", read_register (GR64_REGNUM + j + i));
      fprintf (adapt_stream, "%x\r", read_register (GR64_REGNUM + j + 15));
      expect_prompt ();
    }
#endif
  for (j = 0; j < 32; j += 16)
    {
      fprintf (adapt_stream, "s gr%d,", j + 96);
      for (i = 0; i < 15; ++i)
	fprintf (adapt_stream, "%x,", read_register (GR96_REGNUM + j + i));
      fprintf (adapt_stream, "%x\r", read_register (GR96_REGNUM + j + 15));
      expect_prompt ();
    }

  for (j = 0; j < 128; j += 16)
    {
      fprintf (adapt_stream, "s lr%d,", j);
      for (i = 0; i < 15; ++i)
	fprintf (adapt_stream, "%x,", read_register (LR0_REGNUM + j + i));
      fprintf (adapt_stream, "%x\r", read_register (LR0_REGNUM + j + 15));
      expect_prompt ();
    }

  fprintf (adapt_stream, "s sr128,%x,%x,%x\r", read_register (IPC_REGNUM),
	   read_register (IPA_REGNUM), read_register (IPB_REGNUM));
  expect_prompt ();
  fprintf (adapt_stream, "s sr133,%x,%x,%x\r", read_register (BP_REGNUM),
	   read_register (FC_REGNUM), read_register (CR_REGNUM));
  expect_prompt ();
  fprintf (adapt_stream, "s sr131,%x\r", read_register (Q_REGNUM));
  expect_prompt ();
  fprintf (adapt_stream, "s sr0,");
  for (i = 0; i < 7; ++i)
    fprintf (adapt_stream, "%x,", read_register (VAB_REGNUM + i));
  expect_prompt ();
  fprintf (adapt_stream, "s sr7,");
  for (i = 7; i < 14; ++i)
    fprintf (adapt_stream, "%x,", read_register (VAB_REGNUM + i));
  expect_prompt ();
}

/* Store register REGNO, or all if REGNO == -1.
   Return errno value.  */
void
adapt_store_register (int regno)
{
  /* printf("adapt_store_register() called.\n"); fflush(stdout); /* */
  if (regno == -1)
    adapt_store_registers ();
  else
    {
      char *name = get_reg_name (regno);
      fprintf (adapt_stream, "s %s,%x\r", name, read_register (regno));
      /* Setting GR1 changes the numbers of all the locals, so
         invalidate the register cache.  Do this *after* calling
         read_register, because we want read_register to return the
         value that write_register has just stuffed into the registers
         array, not the value of the register fetched from the
         inferior.  */
      if (regno == GR1_REGNUM)
	registers_changed ();
      expect_prompt ();
    }
}

/* Get ready to modify the registers array.  On machines which store
   individual registers, this doesn't need to do anything.  On machines
   which store all the registers in one fell swoop, this makes sure
   that registers contains all the registers from the program being
   debugged.  */

void
adapt_prepare_to_store (void)
{
  /* Do nothing, since we can store individual regs */
}

static CORE_ADDR
translate_addr (CORE_ADDR addr)
{
#if defined(KERNEL_DEBUGGING)
  /* Check for a virtual address in the kernel */
  /* Assume physical address of ublock is in  paddr_u register */
  if (addr >= UVADDR)
    {
      /* PADDR_U register holds the physical address of the ublock */
      CORE_ADDR i = (CORE_ADDR) read_register (PADDR_U_REGNUM);
      return (i + addr - (CORE_ADDR) UVADDR);
    }
  else
    {
      return (addr);
    }
#else
  return (addr);
#endif
}


/* FIXME!  Merge these two.  */
int
adapt_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len, int write)
{

  memaddr = translate_addr (memaddr);

  if (write)
    return adapt_write_inferior_memory (memaddr, myaddr, len);
  else
    return adapt_read_inferior_memory (memaddr, myaddr, len);
}

void
adapt_files_info (void)
{
  printf_filtered ("\tAttached to %s at %d baud and running program %s\n",
		   dev_name, baudrate, prog_name);
  printf_filtered ("\ton an %s processor.\n", processor_name[processor_type]);
}

/* Copy LEN bytes of data from debugger memory at MYADDR
   to inferior's memory at MEMADDR.  Returns errno value.  
   * sb/sh instructions don't work on unaligned addresses, when TU=1. 
 */
int
adapt_write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
{
  int i;
  unsigned int cps;

  /* Turn TU bit off so we can do 'sb' commands */
  cps = read_register (CPS_REGNUM);
  if (cps & 0x00000800)
    write_register (CPS_REGNUM, cps & ~(0x00000800));

  for (i = 0; i < len; i++)
    {
      if ((i % 16) == 0)
	fprintf (adapt_stream, "sb %x,", memaddr + i);
      if ((i % 16) == 15 || i == len - 1)
	{
	  fprintf (adapt_stream, "%x\r", ((unsigned char *) myaddr)[i]);
	  expect_prompt ();
	}
      else
	fprintf (adapt_stream, "%x,", ((unsigned char *) myaddr)[i]);
    }
  /* Restore the old value of cps if the TU bit was on */
  if (cps & 0x00000800)
    write_register (CPS_REGNUM, cps);
  return len;
}

/* Read LEN bytes from inferior memory at MEMADDR.  Put the result
   at debugger address MYADDR.  Returns errno value.  */
int
adapt_read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
{
  int i;

  /* Number of bytes read so far.  */
  int count;

  /* Starting address of this pass.  */
  unsigned long startaddr;

  /* Number of bytes to read in this pass.  */
  int len_this_pass;

  /* Note that this code works correctly if startaddr is just less
     than UINT_MAX (well, really CORE_ADDR_MAX if there was such a
     thing).  That is, something like
     adapt_read_bytes (CORE_ADDR_MAX - 4, foo, 4)
     works--it never adds len to memaddr and gets 0.  */
  /* However, something like
     adapt_read_bytes (CORE_ADDR_MAX - 3, foo, 4)
     doesn't need to work.  Detect it and give up if there's an attempt
     to do that.  */

  if (((memaddr - 1) + len) < memaddr)
    return EIO;

  startaddr = memaddr;
  count = 0;
  while (count < len)
    {
      len_this_pass = 16;
      if ((startaddr % 16) != 0)
	len_this_pass -= startaddr % 16;
      if (len_this_pass > (len - count))
	len_this_pass = (len - count);

      fprintf (adapt_stream, "db %x,%x\r", startaddr,
	       (startaddr - 1) + len_this_pass);

#ifdef NOTDEF			/* Why do this */
      expect ("\n");
      /* Look for 8 hex digits.  */
      i = 0;
      while (1)
	{
	  if (isxdigit (readchar ()))
	    ++i;
	  else
	    {
	      expect_prompt ();
	      error ("Hex digit expected from remote system.");
	    }
	  if (i >= 8)
	    break;
	}
#endif /* NOTDEF */

      expect ("  ");

      for (i = 0; i < len_this_pass; i++)
	get_hex_byte (&myaddr[count++]);

      expect_prompt ();

      startaddr += len_this_pass;
    }
  return count;
}

#define MAX_BREAKS	8
static int num_brkpts = 0;

/* Insert a breakpoint at ADDR.  SAVE is normally the address of the
   pattern buffer where the instruction that the breakpoint overwrites
   is saved.  It is unused here since the Adapt Monitor is responsible
   for saving/restoring the original instruction. */

static int
adapt_insert_breakpoint (CORE_ADDR addr, char *save)
{
  if (num_brkpts < MAX_BREAKS)
    {
      num_brkpts++;
      fprintf (adapt_stream, "B %x", addr);
      fprintf (adapt_stream, "\r");
      expect_prompt ();
      return (0);		/* Success */
    }
  else
    {
      fprintf_filtered (gdb_stderr,
		      "Too many break points, break point not installed\n");
      return (1);		/* Failure */
    }

}

/* Remove a breakpoint at ADDR.  SAVE is normally the previously
   saved pattern, but is unused here as the Adapt Monitor is
   responsible for saving/restoring instructions. */

static int
adapt_remove_breakpoint (CORE_ADDR addr, char *save)
{
  if (num_brkpts > 0)
    {
      num_brkpts--;
      fprintf (adapt_stream, "BR %x", addr);
      fprintf (adapt_stream, "\r");
      fflush (adapt_stream);
      expect_prompt ();
    }
  return (0);
}

/* Clear the adapts notion of what the break points are */
static int
adapt_clear_breakpoints (void)
{
  if (adapt_stream)
    {
      fprintf (adapt_stream, "BR");	/* Clear all break points */
      fprintf (adapt_stream, "\r");
      fflush (adapt_stream);
      expect_prompt ();
    }
  num_brkpts = 0;
}
static void
adapt_mourn (void)
{
  adapt_clear_breakpoints ();
  pop_target ();		/* Pop back to no-child state */
  generic_mourn_inferior ();
}

/* Display everthing we read in from the adapt until we match/see the
 * specified string
 */
static int
display_until (char *str)
{
  int i = 0, j, c;

  while (c = readchar ())
    {
      if (c == str[i])
	{
	  i++;
	  if (i == strlen (str))
	    return;
	}
      else
	{
	  if (i)
	    {
	      for (j = 0; j < i; j++)	/* Put everthing we matched */
		putchar (str[j]);
	      i = 0;
	    }
	  putchar (c);
	}
    }

}


/* Put a command string, in args, out to the adapt.  The adapt is assumed to
   be in raw mode, all writing/reading done through adapt_desc.
   Ouput from the adapt is placed on the users terminal until the
   prompt from the adapt is seen.
   FIXME: Can't handle commands that take input.  */

void
adapt_com (char *args, int fromtty)
{
  if (!adapt_stream)
    {
      printf_filtered ("Adapt not open.  Use the 'target' command to open.\n");
      return;
    }

  /* Clear all input so only command relative output is displayed */
  slurp_input ();

  switch (islower (args[0]) ? toupper (args[0]) : args[0])
    {
    default:
      printf_filtered ("Unknown/Unimplemented adapt command '%s'\n", args);
      break;
    case 'G':			/* Go, begin execution */
      write (adapt_desc, args, strlen (args));
      write (adapt_desc, "\r", 1);
      expect_prompt ();
      break;
    case 'B':			/* Break points, B or BR */
    case 'C':			/* Check current 29k status (running/halted) */
    case 'D':			/* Display data/registers */
    case 'I':			/* Input from i/o space */
    case 'J':			/* Jam an instruction */
    case 'K':			/* Kill, stop execution */
    case 'L':			/* Disassemble */
    case 'O':			/* Output to i/o space */
    case 'T':			/* Trace */
    case 'P':			/* Pulse an input line */
    case 'X':			/* Examine special purpose registers */
    case 'Z':			/* Display trace buffer */
      write (adapt_desc, args, strlen (args));
      write (adapt_desc, "\r", 1);
      expect (args);		/* Don't display the command */
      display_until ("# ");
      break;
      /* Begin commands that take input in the form 'c x,y[,z...]' */
    case 'S':			/* Set memory or register */
      if (strchr (args, ','))
	{			/* Assume it is properly formatted */
	  write (adapt_desc, args, strlen (args));
	  write (adapt_desc, "\r", 1);
	  expect_prompt ();
	}
      break;
    }
}

/* Define the target subroutine names */

struct target_ops adapt_ops;

static void
init_adapt_ops (void)
{
  adapt_ops.to_shortname = "adapt";
  adapt_ops.to_longname = "Remote AMD `Adapt' target";
  adapt_ops.to_doc = "Remote debug an AMD 290*0 using an `Adapt' monitor via RS232";
  adapt_ops.to_open = adapt_open;
  adapt_ops.to_close = adapt_close;
  adapt_ops.to_attach = adapt_attach;
  adapt_ops.to_post_attach = NULL;
  adapt_ops.to_require_attach = NULL;
  adapt_ops.to_detach = adapt_detach;
  adapt_ops.to_require_detach = NULL;
  adapt_ops.to_resume = adapt_resume;
  adapt_ops.to_wait = adapt_wait;
  adapt_ops.to_post_wait = NULL;
  adapt_ops.to_fetch_registers = adapt_fetch_register;
  adapt_ops.to_store_registers = adapt_store_register;
  adapt_ops.to_prepare_to_store = adapt_prepare_to_store;
  adapt_ops.to_xfer_memory = adapt_xfer_inferior_memory;
  adapt_ops.to_files_info = adapt_files_info;
  adapt_ops.to_insert_breakpoint = adapt_insert_breakpoint;
  adapt_ops.to_remove_breakpoint = adapt_remove_breakpoint;
  adapt_ops.to_terminal_init = 0;
  adapt_ops.to_terminal_inferior = 0;
  adapt_ops.to_terminal_ours_for_output = 0;
  adapt_ops.to_terminal_ours = 0;
  adapt_ops.to_terminal_info = 0;
  adapt_ops.to_kill = adapt_kill;
  adapt_ops.to_load = adapt_load;
  adapt_ops.to_lookup_symbol = 0;
  adapt_ops.to_create_inferior = adapt_create_inferior;
  adapt_ops.to_post_startup_inferior = NULL;
  adapt_ops.to_acknowledge_created_inferior = NULL;
  adapt_ops.to_clone_and_follow_inferior = NULL;
  adapt_ops.to_post_follow_inferior_by_clone = NULL;
  adapt_ops.to_insert_fork_catchpoint = NULL;
  adapt_ops.to_remove_fork_catchpoint = NULL;
  adapt_ops.to_insert_vfork_catchpoint = NULL;
  adapt_ops.to_remove_vfork_catchpoint = NULL;
  adapt_ops.to_has_forked = NULL;
  adapt_ops.to_has_vforked = NULL;
  adapt_ops.to_can_follow_vfork_prior_to_exec = NULL;
  adapt_ops.to_post_follow_vfork = NULL;
  adapt_ops.to_insert_exec_catchpoint = NULL;
  adapt_ops.to_remove_exec_catchpoint = NULL;
  adapt_ops.to_has_execd = NULL;
  adapt_ops.to_reported_exec_events_per_exec_call = NULL;
  adapt_ops.to_has_exited = NULL;
  adapt_ops.to_mourn_inferior = adapt_mourn;
  adapt_ops.to_can_run = 0;
  adapt_ops.to_notice_signals = 0;
  adapt_ops.to_thread_alive = 0;
  adapt_ops.to_stop = 0;	/* process_stratum; */
  adapt_ops.to_pid_to_exec_file = NULL;
  adapt_ops.to_core_file_to_sym_file = NULL;
  adapt_ops.to_stratum = 0;
  adapt_ops.DONT_USE = 0;
  adapt_ops.to_has_all_memory = 1;
  adapt_ops.to_has_memory = 1;
  adapt_ops.to_has_stack = 1;
  adapt_ops.to_has_registers = 1;
  adapt_ops.to_has_execution = 0;
  adapt_ops.to_sections = 0;
  adapt_ops.to_sections_end = 0;
  adapt_ops.to_magic = OPS_MAGIC;
}				/* init_adapt_ops */

void
_initialize_remote_adapt (void)
{
  init_adapt_ops ();
  add_target (&adapt_ops);
  add_com ("adapt <command>", class_obscure, adapt_com,
	   "Send a command to the AMD Adapt remote monitor.");
}