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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [gdb/] [cli/] [cli-cmds.c] - Blame information for rev 455

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1 330 jeremybenn
/* GDB CLI commands.
2
 
3
   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
4
   Free Software Foundation, Inc.
5
 
6
   This file is part of GDB.
7
 
8
   This program is free software; you can redistribute it and/or modify
9
   it under the terms of the GNU General Public License as published by
10
   the Free Software Foundation; either version 3 of the License, or
11
   (at your option) any later version.
12
 
13
   This program is distributed in the hope that it will be useful,
14
   but WITHOUT ANY WARRANTY; without even the implied warranty of
15
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
   GNU General Public License for more details.
17
 
18
   You should have received a copy of the GNU General Public License
19
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
20
 
21
#include "defs.h"
22
#include "exceptions.h"
23
#include "arch-utils.h"
24
#include "readline/readline.h"
25
#include "readline/tilde.h"
26
#include "completer.h"
27
#include "target.h"      /* For baud_rate, remote_debug and remote_timeout */
28
#include "gdb_wait.h"           /* For shell escape implementation */
29
#include "gdb_regex.h"          /* Used by apropos_command */
30
#include "gdb_string.h"
31
#include "gdb_vfork.h"
32
#include "linespec.h"
33
#include "expression.h"
34
#include "frame.h"
35
#include "value.h"
36
#include "language.h"
37
#include "filenames.h"          /* for DOSish file names */
38
#include "objfiles.h"
39
#include "source.h"
40
#include "disasm.h"
41
#include "tracepoint.h"
42
 
43
#include "ui-out.h"
44
 
45
#include "top.h"
46
#include "cli/cli-decode.h"
47
#include "cli/cli-script.h"
48
#include "cli/cli-setshow.h"
49
#include "cli/cli-cmds.h"
50
 
51
#include "python/python.h"
52
 
53
#ifdef TUI
54
#include "tui/tui.h"            /* For tui_active et.al.   */
55
#endif
56
 
57
#include <fcntl.h>
58
 
59
/* Prototypes for local command functions */
60
 
61
static void complete_command (char *, int);
62
 
63
static void echo_command (char *, int);
64
 
65
static void pwd_command (char *, int);
66
 
67
static void show_version (char *, int);
68
 
69
static void help_command (char *, int);
70
 
71
static void show_command (char *, int);
72
 
73
static void info_command (char *, int);
74
 
75
static void show_debug (char *, int);
76
 
77
static void set_debug (char *, int);
78
 
79
static void show_user (char *, int);
80
 
81
static void make_command (char *, int);
82
 
83
static void shell_escape (char *, int);
84
 
85
static void edit_command (char *, int);
86
 
87
static void list_command (char *, int);
88
 
89
void apropos_command (char *, int);
90
 
91
/* Prototypes for local utility functions */
92
 
93
static void ambiguous_line_spec (struct symtabs_and_lines *);
94
 
95
/* Limit the call depth of user-defined commands */
96
int max_user_call_depth;
97
 
98
/* Define all cmd_list_elements.  */
99
 
100
/* Chain containing all defined commands.  */
101
 
102
struct cmd_list_element *cmdlist;
103
 
104
/* Chain containing all defined info subcommands.  */
105
 
106
struct cmd_list_element *infolist;
107
 
108
/* Chain containing all defined enable subcommands. */
109
 
110
struct cmd_list_element *enablelist;
111
 
112
/* Chain containing all defined disable subcommands. */
113
 
114
struct cmd_list_element *disablelist;
115
 
116
/* Chain containing all defined toggle subcommands. */
117
 
118
struct cmd_list_element *togglelist;
119
 
120
/* Chain containing all defined stop subcommands. */
121
 
122
struct cmd_list_element *stoplist;
123
 
124
/* Chain containing all defined delete subcommands. */
125
 
126
struct cmd_list_element *deletelist;
127
 
128
/* Chain containing all defined detach subcommands. */
129
 
130
struct cmd_list_element *detachlist;
131
 
132
/* Chain containing all defined kill subcommands. */
133
 
134
struct cmd_list_element *killlist;
135
 
136
/* Chain containing all defined "enable breakpoint" subcommands. */
137
 
138
struct cmd_list_element *enablebreaklist;
139
 
140
/* Chain containing all defined set subcommands */
141
 
142
struct cmd_list_element *setlist;
143
 
144
/* Chain containing all defined unset subcommands */
145
 
146
struct cmd_list_element *unsetlist;
147
 
148
/* Chain containing all defined show subcommands.  */
149
 
150
struct cmd_list_element *showlist;
151
 
152
/* Chain containing all defined \"set history\".  */
153
 
154
struct cmd_list_element *sethistlist;
155
 
156
/* Chain containing all defined \"show history\".  */
157
 
158
struct cmd_list_element *showhistlist;
159
 
160
/* Chain containing all defined \"unset history\".  */
161
 
162
struct cmd_list_element *unsethistlist;
163
 
164
/* Chain containing all defined maintenance subcommands. */
165
 
166
struct cmd_list_element *maintenancelist;
167
 
168
/* Chain containing all defined "maintenance info" subcommands. */
169
 
170
struct cmd_list_element *maintenanceinfolist;
171
 
172
/* Chain containing all defined "maintenance print" subcommands. */
173
 
174
struct cmd_list_element *maintenanceprintlist;
175
 
176
struct cmd_list_element *setprintlist;
177
 
178
struct cmd_list_element *showprintlist;
179
 
180
struct cmd_list_element *setdebuglist;
181
 
182
struct cmd_list_element *showdebuglist;
183
 
184
struct cmd_list_element *setchecklist;
185
 
186
struct cmd_list_element *showchecklist;
187
 
188
/* Command tracing state.  */
189
 
190
int source_verbose = 0;
191
int trace_commands = 0;
192
 
193
/* 'script-extension' option support.  */
194
 
195
static const char script_ext_off[] = "off";
196
static const char script_ext_soft[] = "soft";
197
static const char script_ext_strict[] = "strict";
198
 
199
static const char *script_ext_enums[] = {
200
  script_ext_off,
201
  script_ext_soft,
202
  script_ext_strict,
203
  NULL
204
};
205
 
206
static const char *script_ext_mode = script_ext_soft;
207
 
208
/* Utility used everywhere when at least one argument is needed and
209
   none is supplied. */
210
 
211
void
212
error_no_arg (char *why)
213
{
214
  error (_("Argument required (%s)."), why);
215
}
216
 
217
/* The "info" command is defined as a prefix, with allow_unknown = 0.
218
   Therefore, its own definition is called only for "info" with no args.  */
219
 
220
static void
221
info_command (char *arg, int from_tty)
222
{
223
  printf_unfiltered (_("\"info\" must be followed by the name of an info command.\n"));
224
  help_list (infolist, "info ", -1, gdb_stdout);
225
}
226
 
227
/* The "show" command with no arguments shows all the settings.  */
228
 
229
static void
230
show_command (char *arg, int from_tty)
231
{
232
  cmd_show_list (showlist, from_tty, "");
233
}
234
 
235
/* Provide documentation on command or list given by COMMAND.  FROM_TTY
236
   is ignored.  */
237
 
238
static void
239
help_command (char *command, int from_tty)
240
{
241
  help_cmd (command, gdb_stdout);
242
}
243
 
244
/* String compare function for qsort.  */
245
static int
246
compare_strings (const void *arg1, const void *arg2)
247
{
248
  const char **s1 = (const char **) arg1;
249
  const char **s2 = (const char **) arg2;
250
 
251
  return strcmp (*s1, *s2);
252
}
253
 
254
/* The "complete" command is used by Emacs to implement completion.  */
255
 
256
static void
257
complete_command (char *arg, int from_tty)
258
{
259
  int argpoint;
260
  char **completions, *point, *arg_prefix;
261
 
262
  dont_repeat ();
263
 
264
  if (arg == NULL)
265
    arg = "";
266
  argpoint = strlen (arg);
267
 
268
  /* complete_line assumes that its first argument is somewhere within,
269
     and except for filenames at the beginning of, the word to be completed.
270
     The following crude imitation of readline's word-breaking tries to
271
     accomodate this.  */
272
  point = arg + argpoint;
273
  while (point > arg)
274
    {
275
      if (strchr (rl_completer_word_break_characters, point[-1]) != 0)
276
        break;
277
      point--;
278
    }
279
 
280
  arg_prefix = alloca (point - arg + 1);
281
  memcpy (arg_prefix, arg, point - arg);
282
  arg_prefix[point - arg] = 0;
283
 
284
  completions = complete_line (point, arg, argpoint);
285
 
286
  if (completions)
287
    {
288
      int item, size;
289
 
290
      for (size = 0; completions[size]; ++size)
291
        ;
292
      qsort (completions, size, sizeof (char *), compare_strings);
293
 
294
      /* We do extra processing here since we only want to print each
295
         unique item once.  */
296
      item = 0;
297
      while (item < size)
298
        {
299
          int next_item;
300
 
301
          printf_unfiltered ("%s%s\n", arg_prefix, completions[item]);
302
          next_item = item + 1;
303
          while (next_item < size
304
                 && ! strcmp (completions[item], completions[next_item]))
305
            {
306
              xfree (completions[next_item]);
307
              ++next_item;
308
            }
309
 
310
          xfree (completions[item]);
311
          item = next_item;
312
        }
313
 
314
      xfree (completions);
315
    }
316
}
317
 
318
int
319
is_complete_command (struct cmd_list_element *c)
320
{
321
  return cmd_cfunc_eq (c, complete_command);
322
}
323
 
324
static void
325
show_version (char *args, int from_tty)
326
{
327
  immediate_quit++;
328
  print_gdb_version (gdb_stdout);
329
  printf_filtered ("\n");
330
  immediate_quit--;
331
}
332
 
333
/* Handle the quit command.  */
334
 
335
void
336
quit_command (char *args, int from_tty)
337
{
338
  if (!quit_confirm ())
339
    error (_("Not confirmed."));
340
 
341
  disconnect_tracing (from_tty);
342
 
343
  quit_force (args, from_tty);
344
}
345
 
346
static void
347
pwd_command (char *args, int from_tty)
348
{
349
  if (args)
350
    error (_("The \"pwd\" command does not take an argument: %s"), args);
351
  if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)))
352
    error (_("Error finding name of working directory: %s"),
353
           safe_strerror (errno));
354
 
355
  if (strcmp (gdb_dirbuf, current_directory) != 0)
356
    printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
357
                       current_directory, gdb_dirbuf);
358
  else
359
    printf_unfiltered (_("Working directory %s.\n"), current_directory);
360
}
361
 
362
void
363
cd_command (char *dir, int from_tty)
364
{
365
  int len;
366
  /* Found something other than leading repetitions of "/..".  */
367
  int found_real_path;
368
  char *p;
369
 
370
  /* If the new directory is absolute, repeat is a no-op; if relative,
371
     repeat might be useful but is more likely to be a mistake.  */
372
  dont_repeat ();
373
 
374
  if (dir == 0)
375
    error_no_arg (_("new working directory"));
376
 
377
  dir = tilde_expand (dir);
378
  make_cleanup (xfree, dir);
379
 
380
  if (chdir (dir) < 0)
381
    perror_with_name (dir);
382
 
383
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
384
  /* There's too much mess with DOSish names like "d:", "d:.",
385
     "d:./foo" etc.  Instead of having lots of special #ifdef'ed code,
386
     simply get the canonicalized name of the current directory.  */
387
  dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
388
#endif
389
 
390
  len = strlen (dir);
391
  if (IS_DIR_SEPARATOR (dir[len - 1]))
392
    {
393
      /* Remove the trailing slash unless this is a root directory
394
         (including a drive letter on non-Unix systems).  */
395
      if (!(len == 1)           /* "/" */
396
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
397
          && !(len == 3 && dir[1] == ':') /* "d:/" */
398
#endif
399
          )
400
        len--;
401
    }
402
 
403
  dir = savestring (dir, len);
404
  if (IS_ABSOLUTE_PATH (dir))
405
    current_directory = dir;
406
  else
407
    {
408
      if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]))
409
        current_directory = concat (current_directory, dir, (char *)NULL);
410
      else
411
        current_directory = concat (current_directory, SLASH_STRING,
412
                                    dir, (char *)NULL);
413
      xfree (dir);
414
    }
415
 
416
  /* Now simplify any occurrences of `.' and `..' in the pathname.  */
417
 
418
  found_real_path = 0;
419
  for (p = current_directory; *p;)
420
    {
421
      if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.'
422
          && (p[2] == 0 || IS_DIR_SEPARATOR (p[2])))
423
        strcpy (p, p + 2);
424
      else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.'
425
               && (p[3] == 0 || IS_DIR_SEPARATOR (p[3])))
426
        {
427
          if (found_real_path)
428
            {
429
              /* Search backwards for the directory just before the "/.."
430
                 and obliterate it and the "/..".  */
431
              char *q = p;
432
 
433
              while (q != current_directory && !IS_DIR_SEPARATOR (q[-1]))
434
                --q;
435
 
436
              if (q == current_directory)
437
                /* current_directory is
438
                   a relative pathname ("can't happen"--leave it alone).  */
439
                ++p;
440
              else
441
                {
442
                  strcpy (q - 1, p + 3);
443
                  p = q - 1;
444
                }
445
            }
446
          else
447
            /* We are dealing with leading repetitions of "/..", for example
448
               "/../..", which is the Mach super-root.  */
449
            p += 3;
450
        }
451
      else
452
        {
453
          found_real_path = 1;
454
          ++p;
455
        }
456
    }
457
 
458
  forget_cached_source_info ();
459
 
460
  if (from_tty)
461
    pwd_command ((char *) 0, 1);
462
}
463
 
464
/* Show the current value of the 'script-extension' option.  */
465
 
466
static void
467
show_script_ext_mode (struct ui_file *file, int from_tty,
468
                     struct cmd_list_element *c, const char *value)
469
{
470
  fprintf_filtered (file, _("\
471
Script filename extension recognition is \"%s\".\n"),
472
                    value);
473
}
474
 
475
/* Try to open SCRIPT_FILE.
476
   If successful, the full path name is stored in *FULL_PATHP,
477
   the stream is stored in *STREAMP, and return 1.
478
   The caller is responsible for freeing *FULL_PATHP.
479
   If not successful, return 0; errno is set for the last file
480
   we tried to open.
481
 
482
   If SEARCH_PATH is non-zero, and the file isn't found in cwd,
483
   search for it in the source search path.
484
 
485
   NOTE: This calls openp which uses xfullpath to compute the full path
486
   instead of gdb_realpath.  Symbolic links are not resolved.  */
487
 
488
int
489
find_and_open_script (const char *script_file, int search_path,
490
                      FILE **streamp, char **full_pathp)
491
{
492
  char *file;
493
  int fd;
494
  struct cleanup *old_cleanups;
495
  int search_flags = OPF_TRY_CWD_FIRST;
496
 
497
  file = tilde_expand (script_file);
498
  old_cleanups = make_cleanup (xfree, file);
499
 
500
  if (search_path)
501
    search_flags |= OPF_SEARCH_IN_PATH;
502
 
503
  /* Search for and open 'file' on the search path used for source
504
     files.  Put the full location in *FULL_PATHP.  */
505
  fd = openp (source_path, search_flags,
506
              file, O_RDONLY, full_pathp);
507
 
508
  if (fd == -1)
509
    {
510
      int save_errno = errno;
511
      do_cleanups (old_cleanups);
512
      errno = save_errno;
513
      return 0;
514
    }
515
 
516
  do_cleanups (old_cleanups);
517
 
518
  *streamp = fdopen (fd, FOPEN_RT);
519
  return 1;
520
}
521
 
522
/* Load script FILE, which has already been opened as STREAM.
523
   STREAM is closed before we return.  */
524
 
525
static void
526
source_script_from_stream (FILE *stream, const char *file)
527
{
528
  if (script_ext_mode != script_ext_off
529
      && strlen (file) > 3 && !strcmp (&file[strlen (file) - 3], ".py"))
530
    {
531
      volatile struct gdb_exception e;
532
 
533
      TRY_CATCH (e, RETURN_MASK_ERROR)
534
        {
535
          source_python_script (stream, file);
536
        }
537
      if (e.reason < 0)
538
        {
539
          /* Should we fallback to ye olde GDB script mode?  */
540
          if (script_ext_mode == script_ext_soft
541
              && e.reason == RETURN_ERROR && e.error == UNSUPPORTED_ERROR)
542
            {
543
              fseek (stream, 0, SEEK_SET);
544
              script_from_file (stream, (char*) file);
545
            }
546
          else
547
            {
548
              /* Nope, just punt.  */
549
              fclose (stream);
550
              throw_exception (e);
551
            }
552
        }
553
      else
554
        fclose (stream);
555
    }
556
  else
557
    script_from_file (stream, file);
558
}
559
 
560
/* Worker to perform the "source" command.
561
   Load script FILE.
562
   If SEARCH_PATH is non-zero, and the file isn't found in cwd,
563
   search for it in the source search path.  */
564
 
565
static void
566
source_script_with_search (const char *file, int from_tty, int search_path)
567
{
568
  FILE *stream;
569
  char *full_path;
570
  struct cleanup *old_cleanups;
571
 
572
  if (file == NULL || *file == 0)
573
    error (_("source command requires file name of file to source."));
574
 
575
  if (!find_and_open_script (file, search_path, &stream, &full_path))
576
    {
577
      /* The script wasn't found, or was otherwise inaccessible.
578
         If the source command was invoked interactively, throw an error.
579
         Otherwise (e.g. if it was invoked by a script), silently ignore
580
         the error.  */
581
      if (from_tty)
582
        perror_with_name (file);
583
      else
584
        return;
585
    }
586
 
587
  old_cleanups = make_cleanup (xfree, full_path);
588
  source_script_from_stream (stream, file);
589
  do_cleanups (old_cleanups);
590
}
591
 
592
/* Wrapper around source_script_with_search to export it to main.c
593
   for use in loading .gdbinit scripts.  */
594
 
595
void
596
source_script (char *file, int from_tty)
597
{
598
  source_script_with_search (file, from_tty, 0);
599
}
600
 
601
/* Return the source_verbose global variable to its previous state
602
   on exit from the source command, by whatever means.  */
603
static void
604
source_verbose_cleanup (void *old_value)
605
{
606
  source_verbose = *(int *)old_value;
607
  xfree (old_value);
608
}
609
 
610
static void
611
source_command (char *args, int from_tty)
612
{
613
  struct cleanup *old_cleanups;
614
  char *file = args;
615
  int *old_source_verbose = xmalloc (sizeof(int));
616
  int search_path = 0;
617
 
618
  *old_source_verbose = source_verbose;
619
  old_cleanups = make_cleanup (source_verbose_cleanup, old_source_verbose);
620
 
621
  /* -v causes the source command to run in verbose mode.
622
     -s causes the file to be searched in the source search path,
623
     even if the file name contains a '/'.
624
     We still have to be able to handle filenames with spaces in a
625
     backward compatible way, so buildargv is not appropriate.  */
626
 
627
  if (args)
628
    {
629
      while (args[0] != '\0')
630
        {
631
          /* Make sure leading white space does not break the comparisons.  */
632
          while (isspace(args[0]))
633
            args++;
634
 
635
          if (args[0] != '-')
636
            break;
637
 
638
          if (args[1] == 'v' && isspace (args[2]))
639
            {
640
              source_verbose = 1;
641
 
642
              /* Skip passed -v.  */
643
              args = &args[3];
644
            }
645
          else if (args[1] == 's' && isspace (args[2]))
646
            {
647
              search_path = 1;
648
 
649
              /* Skip passed -s.  */
650
              args = &args[3];
651
            }
652
          else
653
            break;
654
        }
655
 
656
      while (isspace (args[0]))
657
        args++;
658
      file = args;
659
    }
660
 
661
  source_script_with_search (file, from_tty, search_path);
662
 
663
  do_cleanups (old_cleanups);
664
}
665
 
666
 
667
static void
668
echo_command (char *text, int from_tty)
669
{
670
  char *p = text;
671
  int c;
672
 
673
  if (text)
674
    while ((c = *p++) != '\0')
675
      {
676
        if (c == '\\')
677
          {
678
            /* \ at end of argument is used after spaces
679
               so they won't be lost.  */
680
            if (*p == 0)
681
              return;
682
 
683
            c = parse_escape (get_current_arch (), &p);
684
            if (c >= 0)
685
              printf_filtered ("%c", c);
686
          }
687
        else
688
          printf_filtered ("%c", c);
689
      }
690
 
691
  /* Force this output to appear now.  */
692
  wrap_here ("");
693
  gdb_flush (gdb_stdout);
694
}
695
 
696
static void
697
shell_escape (char *arg, int from_tty)
698
{
699
#if defined(CANT_FORK) || \
700
      (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
701
  /* If ARG is NULL, they want an inferior shell, but `system' just
702
     reports if the shell is available when passed a NULL arg.  */
703
  int rc = system (arg ? arg : "");
704
 
705
  if (!arg)
706
    arg = "inferior shell";
707
 
708
  if (rc == -1)
709
    {
710
      fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
711
                          safe_strerror (errno));
712
      gdb_flush (gdb_stderr);
713
    }
714
  else if (rc)
715
    {
716
      fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
717
      gdb_flush (gdb_stderr);
718
    }
719
#ifdef GLOBAL_CURDIR
720
  /* Make sure to return to the directory GDB thinks it is, in case the
721
     shell command we just ran changed it.  */
722
  chdir (current_directory);
723
#endif
724
#else /* Can fork.  */
725
  int rc, status, pid;
726
 
727
  if ((pid = vfork ()) == 0)
728
    {
729
      char *p, *user_shell;
730
 
731
      if ((user_shell = (char *) getenv ("SHELL")) == NULL)
732
        user_shell = "/bin/sh";
733
 
734
      /* Get the name of the shell for arg0 */
735
      if ((p = strrchr (user_shell, '/')) == NULL)
736
        p = user_shell;
737
      else
738
        p++;                    /* Get past '/' */
739
 
740
      if (!arg)
741
        execl (user_shell, p, (char *) 0);
742
      else
743
        execl (user_shell, p, "-c", arg, (char *) 0);
744
 
745
      fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell,
746
                          safe_strerror (errno));
747
      gdb_flush (gdb_stderr);
748
      _exit (0177);
749
    }
750
 
751
  if (pid != -1)
752
    while ((rc = wait (&status)) != pid && rc != -1)
753
      ;
754
  else
755
    error (_("Fork failed"));
756
#endif /* Can fork.  */
757
}
758
 
759
static void
760
edit_command (char *arg, int from_tty)
761
{
762
  struct symtabs_and_lines sals;
763
  struct symtab_and_line sal;
764
  struct symbol *sym;
765
  char *arg1;
766
  char *editor;
767
  char *p, *fn;
768
 
769
  /* Pull in the current default source line if necessary.  */
770
  if (arg == 0)
771
    {
772
      set_default_source_symtab_and_line ();
773
      sal = get_current_source_symtab_and_line ();
774
    }
775
 
776
  /* bare "edit" edits file with present line.  */
777
 
778
  if (arg == 0)
779
    {
780
      if (sal.symtab == 0)
781
        error (_("No default source file yet."));
782
      sal.line += get_lines_to_list () / 2;
783
    }
784
  else
785
    {
786
      /* Now should only be one argument -- decode it in SAL.  */
787
 
788
      arg1 = arg;
789
      sals = decode_line_1 (&arg1, 0, 0, 0, 0, 0);
790
 
791
      if (! sals.nelts)
792
        {
793
          /*  C++  */
794
          return;
795
        }
796
      if (sals.nelts > 1)
797
        {
798
          ambiguous_line_spec (&sals);
799
          xfree (sals.sals);
800
          return;
801
        }
802
 
803
      sal = sals.sals[0];
804
      xfree (sals.sals);
805
 
806
      if (*arg1)
807
        error (_("Junk at end of line specification."));
808
 
809
      /* If line was specified by address,
810
         first print exactly which line, and which file.
811
         In this case, sal.symtab == 0 means address is outside
812
         of all known source files, not that user failed to give a filename.  */
813
      if (*arg == '*')
814
        {
815
          struct gdbarch *gdbarch;
816
 
817
          if (sal.symtab == 0)
818
            /* FIXME-32x64--assumes sal.pc fits in long.  */
819
            error (_("No source file for address %s."),
820
                   hex_string ((unsigned long) sal.pc));
821
 
822
          gdbarch = get_objfile_arch (sal.symtab->objfile);
823
          sym = find_pc_function (sal.pc);
824
          if (sym)
825
            printf_filtered ("%s is in %s (%s:%d).\n",
826
                             paddress (gdbarch, sal.pc),
827
                             SYMBOL_PRINT_NAME (sym),
828
                             sal.symtab->filename, sal.line);
829
          else
830
            printf_filtered ("%s is at %s:%d.\n",
831
                             paddress (gdbarch, sal.pc),
832
                             sal.symtab->filename, sal.line);
833
        }
834
 
835
      /* If what was given does not imply a symtab, it must be an undebuggable
836
         symbol which means no source code.  */
837
 
838
      if (sal.symtab == 0)
839
        error (_("No line number known for %s."), arg);
840
    }
841
 
842
  if ((editor = (char *) getenv ("EDITOR")) == NULL)
843
      editor = "/bin/ex";
844
 
845
  /* If we don't already know the full absolute file name of the
846
     source file, find it now.  */
847
  if (!sal.symtab->fullname)
848
    {
849
      fn = symtab_to_fullname (sal.symtab);
850
      if (!fn)
851
        fn = "unknown";
852
    }
853
  else
854
    fn = sal.symtab->fullname;
855
 
856
  /* Quote the file name, in case it has whitespace or other special
857
     characters.  */
858
  p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn);
859
  shell_escape (p, from_tty);
860
  xfree (p);
861
}
862
 
863
static void
864
list_command (char *arg, int from_tty)
865
{
866
  struct symtabs_and_lines sals, sals_end;
867
  struct symtab_and_line sal = { 0 };
868
  struct symtab_and_line sal_end = { 0 };
869
  struct symtab_and_line cursal = { 0 };
870
  struct symbol *sym;
871
  char *arg1;
872
  int no_end = 1;
873
  int dummy_end = 0;
874
  int dummy_beg = 0;
875
  int linenum_beg = 0;
876
  char *p;
877
 
878
  /* Pull in the current default source line if necessary */
879
  if (arg == 0 || arg[0] == '+' || arg[0] == '-')
880
    {
881
      set_default_source_symtab_and_line ();
882
      cursal = get_current_source_symtab_and_line ();
883
    }
884
 
885
  /* "l" or "l +" lists next ten lines.  */
886
 
887
  if (arg == 0 || strcmp (arg, "+") == 0)
888
    {
889
      print_source_lines (cursal.symtab, cursal.line,
890
                          cursal.line + get_lines_to_list (), 0);
891
      return;
892
    }
893
 
894
  /* "l -" lists previous ten lines, the ones before the ten just listed.  */
895
  if (strcmp (arg, "-") == 0)
896
    {
897
      print_source_lines (cursal.symtab,
898
                          max (get_first_line_listed () - get_lines_to_list (), 1),
899
                          get_first_line_listed (), 0);
900
      return;
901
    }
902
 
903
  /* Now if there is only one argument, decode it in SAL
904
     and set NO_END.
905
     If there are two arguments, decode them in SAL and SAL_END
906
     and clear NO_END; however, if one of the arguments is blank,
907
     set DUMMY_BEG or DUMMY_END to record that fact.  */
908
 
909
  if (!have_full_symbols () && !have_partial_symbols ())
910
    error (_("No symbol table is loaded.  Use the \"file\" command."));
911
 
912
  arg1 = arg;
913
  if (*arg1 == ',')
914
    dummy_beg = 1;
915
  else
916
    {
917
      sals = decode_line_1 (&arg1, 0, 0, 0, 0, 0);
918
 
919
      if (!sals.nelts)
920
        return;                 /*  C++  */
921
      if (sals.nelts > 1)
922
        {
923
          ambiguous_line_spec (&sals);
924
          xfree (sals.sals);
925
          return;
926
        }
927
 
928
      sal = sals.sals[0];
929
      xfree (sals.sals);
930
    }
931
 
932
  /* Record whether the BEG arg is all digits.  */
933
 
934
  for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++);
935
  linenum_beg = (p == arg1);
936
 
937
  while (*arg1 == ' ' || *arg1 == '\t')
938
    arg1++;
939
  if (*arg1 == ',')
940
    {
941
      no_end = 0;
942
      arg1++;
943
      while (*arg1 == ' ' || *arg1 == '\t')
944
        arg1++;
945
      if (*arg1 == 0)
946
        dummy_end = 1;
947
      else
948
        {
949
          if (dummy_beg)
950
            sals_end = decode_line_1 (&arg1, 0, 0, 0, 0, 0);
951
          else
952
            sals_end = decode_line_1 (&arg1, 0, sal.symtab, sal.line, 0, 0);
953
          if (sals_end.nelts == 0)
954
            return;
955
          if (sals_end.nelts > 1)
956
            {
957
              ambiguous_line_spec (&sals_end);
958
              xfree (sals_end.sals);
959
              return;
960
            }
961
          sal_end = sals_end.sals[0];
962
          xfree (sals_end.sals);
963
        }
964
    }
965
 
966
  if (*arg1)
967
    error (_("Junk at end of line specification."));
968
 
969
  if (!no_end && !dummy_beg && !dummy_end
970
      && sal.symtab != sal_end.symtab)
971
    error (_("Specified start and end are in different files."));
972
  if (dummy_beg && dummy_end)
973
    error (_("Two empty args do not say what lines to list."));
974
 
975
  /* if line was specified by address,
976
     first print exactly which line, and which file.
977
     In this case, sal.symtab == 0 means address is outside
978
     of all known source files, not that user failed to give a filename.  */
979
  if (*arg == '*')
980
    {
981
      struct gdbarch *gdbarch;
982
 
983
      if (sal.symtab == 0)
984
        /* FIXME-32x64--assumes sal.pc fits in long.  */
985
        error (_("No source file for address %s."),
986
               hex_string ((unsigned long) sal.pc));
987
 
988
      gdbarch = get_objfile_arch (sal.symtab->objfile);
989
      sym = find_pc_function (sal.pc);
990
      if (sym)
991
        printf_filtered ("%s is in %s (%s:%d).\n",
992
                         paddress (gdbarch, sal.pc),
993
                         SYMBOL_PRINT_NAME (sym),
994
                         sal.symtab->filename, sal.line);
995
      else
996
        printf_filtered ("%s is at %s:%d.\n",
997
                         paddress (gdbarch, sal.pc),
998
                         sal.symtab->filename, sal.line);
999
    }
1000
 
1001
  /* If line was not specified by just a line number,
1002
     and it does not imply a symtab, it must be an undebuggable symbol
1003
     which means no source code.  */
1004
 
1005
  if (!linenum_beg && sal.symtab == 0)
1006
    error (_("No line number known for %s."), arg);
1007
 
1008
  /* If this command is repeated with RET,
1009
     turn it into the no-arg variant.  */
1010
 
1011
  if (from_tty)
1012
    *arg = 0;
1013
 
1014
  if (dummy_beg && sal_end.symtab == 0)
1015
    error (_("No default source file yet.  Do \"help list\"."));
1016
  if (dummy_beg)
1017
    print_source_lines (sal_end.symtab,
1018
                        max (sal_end.line - (get_lines_to_list () - 1), 1),
1019
                        sal_end.line + 1, 0);
1020
  else if (sal.symtab == 0)
1021
    error (_("No default source file yet.  Do \"help list\"."));
1022
  else if (no_end)
1023
    {
1024
      int first_line = sal.line - get_lines_to_list () / 2;
1025
 
1026
      if (first_line < 1) first_line = 1;
1027
 
1028
      print_source_lines (sal.symtab,
1029
                          first_line,
1030
                          first_line + get_lines_to_list (),
1031
                          0);
1032
    }
1033
  else
1034
    print_source_lines (sal.symtab, sal.line,
1035
                        (dummy_end
1036
                         ? sal.line + get_lines_to_list ()
1037
                         : sal_end.line + 1),
1038
                        0);
1039
}
1040
 
1041
/* Subroutine of disassemble_command to simplify it.
1042
   Perform the disassembly.
1043
   NAME is the name of the function if known, or NULL.
1044
   [LOW,HIGH) are the range of addresses to disassemble.
1045
   MIXED is non-zero to print source with the assembler.  */
1046
 
1047
static void
1048
print_disassembly (struct gdbarch *gdbarch, const char *name,
1049
                   CORE_ADDR low, CORE_ADDR high, int flags)
1050
{
1051
#if defined(TUI)
1052
  if (!tui_is_window_visible (DISASSEM_WIN))
1053
#endif
1054
    {
1055
      printf_filtered ("Dump of assembler code ");
1056
      if (name != NULL)
1057
        printf_filtered ("for function %s:\n", name);
1058
      else
1059
        printf_filtered ("from %s to %s:\n",
1060
                         paddress (gdbarch, low), paddress (gdbarch, high));
1061
 
1062
      /* Dump the specified range.  */
1063
      gdb_disassembly (gdbarch, uiout, 0, flags, -1, low, high);
1064
 
1065
      printf_filtered ("End of assembler dump.\n");
1066
      gdb_flush (gdb_stdout);
1067
    }
1068
#if defined(TUI)
1069
  else
1070
    {
1071
      tui_show_assembly (gdbarch, low);
1072
    }
1073
#endif
1074
}
1075
 
1076
/* Subroutine of disassemble_command to simplify it.
1077
   Print a disassembly of the current function according to FLAGS.  */
1078
 
1079
static void
1080
disassemble_current_function (int flags)
1081
{
1082
  struct frame_info *frame;
1083
  struct gdbarch *gdbarch;
1084
  CORE_ADDR low, high, pc;
1085
  char *name;
1086
 
1087
  frame = get_selected_frame (_("No frame selected."));
1088
  gdbarch = get_frame_arch (frame);
1089
  pc = get_frame_pc (frame);
1090
  if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1091
    error (_("No function contains program counter for selected frame."));
1092
#if defined(TUI)
1093
  /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1094
     `tui_version'.  */
1095
  if (tui_active)
1096
    /* FIXME: cagney/2004-02-07: This should be an observer.  */
1097
    low = tui_get_low_disassembly_address (gdbarch, low, pc);
1098
#endif
1099
  low += gdbarch_deprecated_function_start_offset (gdbarch);
1100
 
1101
  print_disassembly (gdbarch, name, low, high, flags);
1102
}
1103
 
1104
/* Dump a specified section of assembly code.
1105
 
1106
   Usage:
1107
     disassemble [/mr]
1108
       - dump the assembly code for the function of the current pc
1109
     disassemble [/mr] addr
1110
       - dump the assembly code for the function at ADDR
1111
     disassemble [/mr] low,high
1112
     disassemble [/mr] low,+length
1113
       - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1114
 
1115
   A /m modifier will include source code with the assembly.
1116
   A /r modifier will include raw instructions in hex with the assembly.  */
1117
 
1118
static void
1119
disassemble_command (char *arg, int from_tty)
1120
{
1121
  struct gdbarch *gdbarch = get_current_arch ();
1122
  CORE_ADDR low, high;
1123
  char *name;
1124
  CORE_ADDR pc;
1125
  int flags;
1126
 
1127
  name = NULL;
1128
  flags = 0;
1129
 
1130
  if (arg && *arg == '/')
1131
    {
1132
      ++arg;
1133
 
1134
      if (*arg == '\0')
1135
        error (_("Missing modifier."));
1136
 
1137
      while (*arg && ! isspace (*arg))
1138
        {
1139
          switch (*arg++)
1140
            {
1141
            case 'm':
1142
              flags |= DISASSEMBLY_SOURCE;
1143
              break;
1144
            case 'r':
1145
              flags |= DISASSEMBLY_RAW_INSN;
1146
              break;
1147
            default:
1148
              error (_("Invalid disassembly modifier."));
1149
            }
1150
        }
1151
 
1152
      while (isspace (*arg))
1153
        ++arg;
1154
    }
1155
 
1156
  if (! arg || ! *arg)
1157
    {
1158
      flags |= DISASSEMBLY_OMIT_FNAME;
1159
      disassemble_current_function (flags);
1160
      return;
1161
    }
1162
 
1163
  pc = value_as_address (parse_to_comma_and_eval (&arg));
1164
  if (arg[0] == ',')
1165
    ++arg;
1166
  if (arg[0] == '\0')
1167
    {
1168
      /* One argument.  */
1169
      if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1170
        error (_("No function contains specified address."));
1171
#if defined(TUI)
1172
      /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1173
         `tui_version'.  */
1174
      if (tui_active)
1175
        /* FIXME: cagney/2004-02-07: This should be an observer.  */
1176
        low = tui_get_low_disassembly_address (gdbarch, low, pc);
1177
#endif
1178
      low += gdbarch_deprecated_function_start_offset (gdbarch);
1179
      flags |= DISASSEMBLY_OMIT_FNAME;
1180
    }
1181
  else
1182
    {
1183
      /* Two arguments.  */
1184
      int incl_flag = 0;
1185
      low = pc;
1186
      while (isspace (*arg))
1187
        arg++;
1188
      if (arg[0] == '+')
1189
        {
1190
          ++arg;
1191
          incl_flag = 1;
1192
        }
1193
      high = parse_and_eval_address (arg);
1194
      if (incl_flag)
1195
        high += low;
1196
    }
1197
 
1198
  print_disassembly (gdbarch, name, low, high, flags);
1199
}
1200
 
1201
static void
1202
make_command (char *arg, int from_tty)
1203
{
1204
  char *p;
1205
 
1206
  if (arg == 0)
1207
    p = "make";
1208
  else
1209
    {
1210
      p = xmalloc (sizeof ("make ") + strlen (arg));
1211
      strcpy (p, "make ");
1212
      strcpy (p + sizeof ("make ") - 1, arg);
1213
    }
1214
 
1215
  shell_escape (p, from_tty);
1216
}
1217
 
1218
static void
1219
show_user (char *args, int from_tty)
1220
{
1221
  struct cmd_list_element *c;
1222
  extern struct cmd_list_element *cmdlist;
1223
 
1224
  if (args)
1225
    {
1226
      char *comname = args;
1227
 
1228
      c = lookup_cmd (&comname, cmdlist, "", 0, 1);
1229
      if (c->class != class_user)
1230
        error (_("Not a user command."));
1231
      show_user_1 (c, "", args, gdb_stdout);
1232
    }
1233
  else
1234
    {
1235
      for (c = cmdlist; c; c = c->next)
1236
        {
1237
          if (c->class == class_user || c->prefixlist != NULL)
1238
            show_user_1 (c, "", c->name, gdb_stdout);
1239
        }
1240
    }
1241
}
1242
 
1243
/* Search through names of commands and documentations for a certain
1244
   regular expression.
1245
*/
1246
void
1247
apropos_command (char *searchstr, int from_tty)
1248
{
1249
  extern struct cmd_list_element *cmdlist; /*This is the main command list*/
1250
  regex_t pattern;
1251
  char *pattern_fastmap;
1252
  char errorbuffer[512];
1253
 
1254
  pattern_fastmap = xcalloc (256, sizeof (char));
1255
  if (searchstr == NULL)
1256
      error (_("REGEXP string is empty"));
1257
 
1258
  if (regcomp(&pattern,searchstr,REG_ICASE) == 0)
1259
    {
1260
      pattern.fastmap=pattern_fastmap;
1261
      re_compile_fastmap(&pattern);
1262
      apropos_cmd (gdb_stdout,cmdlist,&pattern,"");
1263
    }
1264
  else
1265
    {
1266
      regerror(regcomp(&pattern,searchstr,REG_ICASE),NULL,errorbuffer,512);
1267
      error (_("Error in regular expression:%s"),errorbuffer);
1268
    }
1269
  xfree (pattern_fastmap);
1270
}
1271
 
1272
/* Print a list of files and line numbers which a user may choose from
1273
   in order to list a function which was specified ambiguously (as with
1274
   `list classname::overloadedfuncname', for example).  The vector in
1275
   SALS provides the filenames and line numbers.  */
1276
 
1277
static void
1278
ambiguous_line_spec (struct symtabs_and_lines *sals)
1279
{
1280
  int i;
1281
 
1282
  for (i = 0; i < sals->nelts; ++i)
1283
    printf_filtered (_("file: \"%s\", line number: %d\n"),
1284
                     sals->sals[i].symtab->filename, sals->sals[i].line);
1285
}
1286
 
1287
static void
1288
set_debug (char *arg, int from_tty)
1289
{
1290
  printf_unfiltered (_("\"set debug\" must be followed by the name of a debug subcommand.\n"));
1291
  help_list (setdebuglist, "set debug ", -1, gdb_stdout);
1292
}
1293
 
1294
static void
1295
show_debug (char *args, int from_tty)
1296
{
1297
  cmd_show_list (showdebuglist, from_tty, "");
1298
}
1299
 
1300
void
1301
init_cmd_lists (void)
1302
{
1303
  max_user_call_depth = 1024;
1304
 
1305
  cmdlist = NULL;
1306
  infolist = NULL;
1307
  enablelist = NULL;
1308
  disablelist = NULL;
1309
  togglelist = NULL;
1310
  stoplist = NULL;
1311
  deletelist = NULL;
1312
  detachlist = NULL;
1313
  enablebreaklist = NULL;
1314
  setlist = NULL;
1315
  unsetlist = NULL;
1316
  showlist = NULL;
1317
  sethistlist = NULL;
1318
  showhistlist = NULL;
1319
  unsethistlist = NULL;
1320
  maintenancelist = NULL;
1321
  maintenanceinfolist = NULL;
1322
  maintenanceprintlist = NULL;
1323
  setprintlist = NULL;
1324
  showprintlist = NULL;
1325
  setchecklist = NULL;
1326
  showchecklist = NULL;
1327
}
1328
 
1329
static void
1330
show_info_verbose (struct ui_file *file, int from_tty,
1331
                   struct cmd_list_element *c,
1332
                   const char *value)
1333
{
1334
  if (info_verbose)
1335
    fprintf_filtered (file, _("\
1336
Verbose printing of informational messages is %s.\n"), value);
1337
  else
1338
    fprintf_filtered (file, _("Verbosity is %s.\n"), value);
1339
}
1340
 
1341
static void
1342
show_history_expansion_p (struct ui_file *file, int from_tty,
1343
                          struct cmd_list_element *c, const char *value)
1344
{
1345
  fprintf_filtered (file, _("History expansion on command input is %s.\n"),
1346
                    value);
1347
}
1348
 
1349
static void
1350
show_baud_rate (struct ui_file *file, int from_tty,
1351
                struct cmd_list_element *c, const char *value)
1352
{
1353
  fprintf_filtered (file, _("Baud rate for remote serial I/O is %s.\n"),
1354
                    value);
1355
}
1356
 
1357
static void
1358
show_remote_debug (struct ui_file *file, int from_tty,
1359
                   struct cmd_list_element *c, const char *value)
1360
{
1361
  fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"),
1362
                    value);
1363
}
1364
 
1365
static void
1366
show_remote_timeout (struct ui_file *file, int from_tty,
1367
                     struct cmd_list_element *c, const char *value)
1368
{
1369
  fprintf_filtered (file, _("\
1370
Timeout limit to wait for target to respond is %s.\n"),
1371
                    value);
1372
}
1373
 
1374
static void
1375
show_max_user_call_depth (struct ui_file *file, int from_tty,
1376
                          struct cmd_list_element *c, const char *value)
1377
{
1378
  fprintf_filtered (file, _("\
1379
The max call depth for user-defined commands is %s.\n"),
1380
                    value);
1381
}
1382
 
1383
 
1384
void
1385
init_cli_cmds (void)
1386
{
1387
  struct cmd_list_element *c;
1388
  char *source_help_text;
1389
 
1390
  /* Define the classes of commands.
1391
     They will appear in the help list in the reverse of this order.  */
1392
 
1393
  add_cmd ("internals", class_maintenance, NULL, _("\
1394
Maintenance commands.\n\
1395
Some gdb commands are provided just for use by gdb maintainers.\n\
1396
These commands are subject to frequent change, and may not be as\n\
1397
well documented as user commands."),
1398
           &cmdlist);
1399
  add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist);
1400
  add_cmd ("aliases", class_alias, NULL, _("Aliases of other commands."), &cmdlist);
1401
  add_cmd ("user-defined", class_user, NULL, _("\
1402
User-defined commands.\n\
1403
The commands in this class are those defined by the user.\n\
1404
Use the \"define\" command to define a command."), &cmdlist);
1405
  add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist);
1406
  if (!dbx_commands)
1407
    add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist);
1408
  add_cmd ("files", class_files, NULL, _("Specifying and examining files."),
1409
           &cmdlist);
1410
  add_cmd ("breakpoints", class_breakpoint, NULL,
1411
           _("Making program stop at certain points."), &cmdlist);
1412
  add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist);
1413
  add_cmd ("stack", class_stack, NULL, _("\
1414
Examining the stack.\n\
1415
The stack is made up of stack frames.  Gdb assigns numbers to stack frames\n\
1416
counting from zero for the innermost (currently executing) frame.\n\n\
1417
At any time gdb identifies one frame as the \"selected\" frame.\n\
1418
Variable lookups are done with respect to the selected frame.\n\
1419
When the program being debugged stops, gdb selects the innermost frame.\n\
1420
The commands below can be used to select other frames by number or address."),
1421
           &cmdlist);
1422
  add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist);
1423
 
1424
  /* Define general commands. */
1425
 
1426
  add_com ("pwd", class_files, pwd_command, _("\
1427
Print working directory.  This is used for your program as well."));
1428
 
1429
  c = add_cmd ("cd", class_files, cd_command, _("\
1430
Set working directory to DIR for debugger and program being debugged.\n\
1431
The change does not take effect for the program being debugged\n\
1432
until the next time it is started."), &cmdlist);
1433
  set_cmd_completer (c, filename_completer);
1434
 
1435
  add_com ("echo", class_support, echo_command, _("\
1436
Print a constant string.  Give string as argument.\n\
1437
C escape sequences may be used in the argument.\n\
1438
No newline is added at the end of the argument;\n\
1439
use \"\\n\" if you want a newline to be printed.\n\
1440
Since leading and trailing whitespace are ignored in command arguments,\n\
1441
if you want to print some you must use \"\\\" before leading whitespace\n\
1442
to be printed or after trailing whitespace."));
1443
  add_com ("document", class_support, document_command, _("\
1444
Document a user-defined command.\n\
1445
Give command name as argument.  Give documentation on following lines.\n\
1446
End with a line of just \"end\"."));
1447
  add_com ("define", class_support, define_command, _("\
1448
Define a new command name.  Command name is argument.\n\
1449
Definition appears on following lines, one command per line.\n\
1450
End with a line of just \"end\".\n\
1451
Use the \"document\" command to give documentation for the new command.\n\
1452
Commands defined in this way may have up to ten arguments."));
1453
 
1454
  source_help_text = xstrprintf (_("\
1455
Read commands from a file named FILE.\n\
1456
\n\
1457
Usage: source [-s] [-v] FILE\n\
1458
-s: search for the script in the source search path,\n\
1459
    even if FILE contains directories.\n\
1460
-v: each command in FILE is echoed as it is executed.\n\
1461
\n\
1462
Note that the file \"%s\" is read automatically in this way\n\
1463
when GDB is started."), gdbinit);
1464
  c = add_cmd ("source", class_support, source_command,
1465
               source_help_text, &cmdlist);
1466
  set_cmd_completer (c, filename_completer);
1467
 
1468
  add_setshow_enum_cmd ("script-extension", class_support,
1469
                        script_ext_enums, &script_ext_mode, _("\
1470
Set mode for script filename extension recognition."), _("\
1471
Show mode for script filename extension recognition."), _("\
1472
off  == no filename extension recognition (all sourced files are GDB scripts)\n\
1473
soft == evaluate script according to filename extension, fallback to GDB script"
1474
  "\n\
1475
strict == evaluate script according to filename extension, error if not supported"
1476
  ),
1477
                        NULL,
1478
                        show_script_ext_mode,
1479
                        &setlist, &showlist);
1480
 
1481
  add_com ("quit", class_support, quit_command, _("Exit gdb."));
1482
  c = add_com ("help", class_support, help_command,
1483
               _("Print list of commands."));
1484
  set_cmd_completer (c, command_completer);
1485
  add_com_alias ("q", "quit", class_support, 1);
1486
  add_com_alias ("h", "help", class_support, 1);
1487
 
1488
  add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\
1489
Set verbosity."), _("\
1490
Show verbosity."), NULL,
1491
                           set_verbose,
1492
                           show_info_verbose,
1493
                           &setlist, &showlist);
1494
 
1495
  add_prefix_cmd ("history", class_support, set_history,
1496
                  _("Generic command for setting command history parameters."),
1497
                  &sethistlist, "set history ", 0, &setlist);
1498
  add_prefix_cmd ("history", class_support, show_history,
1499
                  _("Generic command for showing command history parameters."),
1500
                  &showhistlist, "show history ", 0, &showlist);
1501
 
1502
  add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\
1503
Set history expansion on command input."), _("\
1504
Show history expansion on command input."), _("\
1505
Without an argument, history expansion is enabled."),
1506
                           NULL,
1507
                           show_history_expansion_p,
1508
                           &sethistlist, &showhistlist);
1509
 
1510
  add_prefix_cmd ("info", class_info, info_command, _("\
1511
Generic command for showing things about the program being debugged."),
1512
                  &infolist, "info ", 0, &cmdlist);
1513
  add_com_alias ("i", "info", class_info, 1);
1514
  add_com_alias ("inf", "info", class_info, 1);
1515
 
1516
  add_com ("complete", class_obscure, complete_command,
1517
           _("List the completions for the rest of the line as a command."));
1518
 
1519
  add_prefix_cmd ("show", class_info, show_command, _("\
1520
Generic command for showing things about the debugger."),
1521
                  &showlist, "show ", 0, &cmdlist);
1522
  /* Another way to get at the same thing.  */
1523
  add_info ("set", show_command, _("Show all GDB settings."));
1524
 
1525
  add_cmd ("commands", no_class, show_commands, _("\
1526
Show the history of commands you typed.\n\
1527
You can supply a command number to start with, or a `+' to start after\n\
1528
the previous command number shown."),
1529
           &showlist);
1530
 
1531
  add_cmd ("version", no_class, show_version,
1532
           _("Show what version of GDB this is."), &showlist);
1533
 
1534
  add_com ("while", class_support, while_command, _("\
1535
Execute nested commands WHILE the conditional expression is non zero.\n\
1536
The conditional expression must follow the word `while' and must in turn be\n\
1537
followed by a new line.  The nested commands must be entered one per line,\n\
1538
and should be terminated by the word `end'."));
1539
 
1540
  add_com ("if", class_support, if_command, _("\
1541
Execute nested commands once IF the conditional expression is non zero.\n\
1542
The conditional expression must follow the word `if' and must in turn be\n\
1543
followed by a new line.  The nested commands must be entered one per line,\n\
1544
and should be terminated by the word 'else' or `end'.  If an else clause\n\
1545
is used, the same rules apply to its nested commands as to the first ones."));
1546
 
1547
  /* If target is open when baud changes, it doesn't take effect until the
1548
     next open (I think, not sure).  */
1549
  add_setshow_zinteger_cmd ("remotebaud", no_class, &baud_rate, _("\
1550
Set baud rate for remote serial I/O."), _("\
1551
Show baud rate for remote serial I/O."), _("\
1552
This value is used to set the speed of the serial port when debugging\n\
1553
using remote targets."),
1554
                            NULL,
1555
                            show_baud_rate,
1556
                            &setlist, &showlist);
1557
 
1558
  add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\
1559
Set debugging of remote protocol."), _("\
1560
Show debugging of remote protocol."), _("\
1561
When enabled, each packet sent or received with the remote target\n\
1562
is displayed."),
1563
                            NULL,
1564
                            show_remote_debug,
1565
                            &setdebuglist, &showdebuglist);
1566
 
1567
  add_setshow_integer_cmd ("remotetimeout", no_class, &remote_timeout, _("\
1568
Set timeout limit to wait for target to respond."), _("\
1569
Show timeout limit to wait for target to respond."), _("\
1570
This value is used to set the time limit for gdb to wait for a response\n\
1571
from the target."),
1572
                           NULL,
1573
                           show_remote_timeout,
1574
                           &setlist, &showlist);
1575
 
1576
  add_prefix_cmd ("debug", no_class, set_debug,
1577
                  _("Generic command for setting gdb debugging flags"),
1578
                  &setdebuglist, "set debug ", 0, &setlist);
1579
 
1580
  add_prefix_cmd ("debug", no_class, show_debug,
1581
                  _("Generic command for showing gdb debugging flags"),
1582
                  &showdebuglist, "show debug ", 0, &showlist);
1583
 
1584
  c = add_com ("shell", class_support, shell_escape, _("\
1585
Execute the rest of the line as a shell command.\n\
1586
With no arguments, run an inferior shell."));
1587
  set_cmd_completer (c, filename_completer);
1588
 
1589
  c = add_com ("edit", class_files, edit_command, _("\
1590
Edit specified file or function.\n\
1591
With no argument, edits file containing most recent line listed.\n\
1592
Editing targets can be specified in these ways:\n\
1593
  FILE:LINENUM, to edit at that line in that file,\n\
1594
  FUNCTION, to edit at the beginning of that function,\n\
1595
  FILE:FUNCTION, to distinguish among like-named static functions.\n\
1596
  *ADDRESS, to edit at the line containing that address.\n\
1597
Uses EDITOR environment variable contents as editor (or ex as default)."));
1598
 
1599
  c->completer = location_completer;
1600
 
1601
  add_com ("list", class_files, list_command, _("\
1602
List specified function or line.\n\
1603
With no argument, lists ten more lines after or around previous listing.\n\
1604
\"list -\" lists the ten lines before a previous ten-line listing.\n\
1605
One argument specifies a line, and ten lines are listed around that line.\n\
1606
Two arguments with comma between specify starting and ending lines to list.\n\
1607
Lines can be specified in these ways:\n\
1608
  LINENUM, to list around that line in current file,\n\
1609
  FILE:LINENUM, to list around that line in that file,\n\
1610
  FUNCTION, to list around beginning of that function,\n\
1611
  FILE:FUNCTION, to distinguish among like-named static functions.\n\
1612
  *ADDRESS, to list around the line containing that address.\n\
1613
With two args if one is empty it stands for ten lines away from the other arg."));
1614
 
1615
  if (!xdb_commands)
1616
    add_com_alias ("l", "list", class_files, 1);
1617
  else
1618
    add_com_alias ("v", "list", class_files, 1);
1619
 
1620
  if (dbx_commands)
1621
    add_com_alias ("file", "list", class_files, 1);
1622
 
1623
  c = add_com ("disassemble", class_vars, disassemble_command, _("\
1624
Disassemble a specified section of memory.\n\
1625
Default is the function surrounding the pc of the selected frame.\n\
1626
With a /m modifier, source lines are included (if available).\n\
1627
With a /r modifier, raw instructions in hex are included.\n\
1628
With a single argument, the function surrounding that address is dumped.\n\
1629
Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1630
  in the form of \"start,end\", or \"start,+length\"."));
1631
  set_cmd_completer (c, location_completer);
1632
  if (xdb_commands)
1633
    add_com_alias ("va", "disassemble", class_xdb, 0);
1634
 
1635
  /* NOTE: cagney/2000-03-20: Being able to enter ``(gdb) !ls'' would
1636
     be a really useful feature.  Unfortunately, the below wont do
1637
     this.  Instead it adds support for the form ``(gdb) ! ls''
1638
     (i.e. the space is required).  If the ``!'' command below is
1639
     added the complains about no ``!'' command would be replaced by
1640
     complains about how the ``!'' command is broken :-) */
1641
  if (xdb_commands)
1642
    add_com_alias ("!", "shell", class_support, 0);
1643
 
1644
  c = add_com ("make", class_support, make_command, _("\
1645
Run the ``make'' program using the rest of the line as arguments."));
1646
  set_cmd_completer (c, filename_completer);
1647
  add_cmd ("user", no_class, show_user, _("\
1648
Show definitions of user defined commands.\n\
1649
Argument is the name of the user defined command.\n\
1650
With no argument, show definitions of all user defined commands."), &showlist);
1651
  add_com ("apropos", class_support, apropos_command,
1652
           _("Search for commands matching a REGEXP"));
1653
 
1654
  add_setshow_integer_cmd ("max-user-call-depth", no_class,
1655
                           &max_user_call_depth, _("\
1656
Set the max call depth for user-defined commands."), _("\
1657
Show the max call depth for user-defined commands."), NULL,
1658
                           NULL,
1659
                           show_max_user_call_depth,
1660
                           &setlist, &showlist);
1661
 
1662
  add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\
1663
Set tracing of GDB CLI commands."), _("\
1664
Show state of GDB CLI command tracing."), _("\
1665
When 'on', each command is displayed as it is executed."),
1666
                           NULL,
1667
                           NULL,
1668
                           &setlist, &showlist);
1669
}

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