3 Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
23 #include <readline/readline.h>
24 #include <readline/tilde.h>
25 #include "completer.h"
26 #include "target.h" /* For baud_rate, remote_debug and remote_timeout */
27 #include "gdb_wait.h" /* For shell escape implementation */
28 #include "gdb_regex.h" /* Used by apropos_command */
29 #include "gdb_string.h"
30 #include "gdb_vfork.h"
32 #include "expression.h"
36 #include "filenames.h" /* for DOSish file names */
44 #include "cli/cli-decode.h"
45 #include "cli/cli-script.h"
46 #include "cli/cli-setshow.h"
47 #include "cli/cli-cmds.h"
49 #ifndef GDBINIT_FILENAME
50 #define GDBINIT_FILENAME ".gdbinit"
53 /* Prototypes for local command functions */
55 static void complete_command (char *, int);
57 static void echo_command (char *, int);
59 static void pwd_command (char *, int);
61 static void show_version (char *, int);
63 static void help_command (char *, int);
65 static void show_command (char *, int);
67 static void info_command (char *, int);
69 static void show_debug (char *, int);
71 static void set_debug (char *, int);
73 static void show_user (char *, int);
75 static void make_command (char *, int);
77 static void shell_escape (char *, int);
79 static void edit_command (char *, int);
81 static void list_command (char *, int);
83 void apropos_command (char *, int);
85 /* Prototypes for local utility functions */
87 static void ambiguous_line_spec (struct symtabs_and_lines *);
89 /* Limit the call depth of user-defined commands */
90 int max_user_call_depth;
92 /* Define all cmd_list_elements. */
94 /* Chain containing all defined commands. */
96 struct cmd_list_element *cmdlist;
98 /* Chain containing all defined info subcommands. */
100 struct cmd_list_element *infolist;
102 /* Chain containing all defined enable subcommands. */
104 struct cmd_list_element *enablelist;
106 /* Chain containing all defined disable subcommands. */
108 struct cmd_list_element *disablelist;
110 /* Chain containing all defined toggle subcommands. */
112 struct cmd_list_element *togglelist;
114 /* Chain containing all defined stop subcommands. */
116 struct cmd_list_element *stoplist;
118 /* Chain containing all defined delete subcommands. */
120 struct cmd_list_element *deletelist;
122 /* Chain containing all defined "enable breakpoint" subcommands. */
124 struct cmd_list_element *enablebreaklist;
126 /* Chain containing all defined set subcommands */
128 struct cmd_list_element *setlist;
130 /* Chain containing all defined unset subcommands */
132 struct cmd_list_element *unsetlist;
134 /* Chain containing all defined show subcommands. */
136 struct cmd_list_element *showlist;
138 /* Chain containing all defined \"set history\". */
140 struct cmd_list_element *sethistlist;
142 /* Chain containing all defined \"show history\". */
144 struct cmd_list_element *showhistlist;
146 /* Chain containing all defined \"unset history\". */
148 struct cmd_list_element *unsethistlist;
150 /* Chain containing all defined maintenance subcommands. */
152 struct cmd_list_element *maintenancelist;
154 /* Chain containing all defined "maintenance info" subcommands. */
156 struct cmd_list_element *maintenanceinfolist;
158 /* Chain containing all defined "maintenance print" subcommands. */
160 struct cmd_list_element *maintenanceprintlist;
162 struct cmd_list_element *setprintlist;
164 struct cmd_list_element *showprintlist;
166 struct cmd_list_element *setdebuglist;
168 struct cmd_list_element *showdebuglist;
170 struct cmd_list_element *setchecklist;
172 struct cmd_list_element *showchecklist;
174 /* Utility used everywhere when at least one argument is needed and
178 error_no_arg (char *why)
180 error ("Argument required (%s).", why);
183 /* The "info" command is defined as a prefix, with allow_unknown = 0.
184 Therefore, its own definition is called only for "info" with no args. */
187 info_command (char *arg, int from_tty)
189 printf_unfiltered ("\"info\" must be followed by the name of an info command.\n");
190 help_list (infolist, "info ", -1, gdb_stdout);
193 /* The "show" command with no arguments shows all the settings. */
196 show_command (char *arg, int from_tty)
198 cmd_show_list (showlist, from_tty, "");
201 /* Provide documentation on command or list given by COMMAND. FROM_TTY
205 help_command (char *command, int from_tty)
207 help_cmd (command, gdb_stdout);
210 /* String compare function for qsort. */
212 compare_strings (const void *arg1, const void *arg2)
214 const char **s1 = (const char **) arg1;
215 const char **s2 = (const char **) arg2;
216 return strcmp (*s1, *s2);
219 /* The "complete" command is used by Emacs to implement completion. */
222 complete_command (char *arg, int from_tty)
226 char **completions, *point, *arg_prefix;
232 argpoint = strlen (arg);
234 /* complete_line assumes that its first argument is somewhere within,
235 and except for filenames at the beginning of, the word to be completed.
236 The following crude imitation of readline's word-breaking tries to
238 point = arg + argpoint;
241 if (strchr (rl_completer_word_break_characters, point[-1]) != 0)
246 arg_prefix = alloca (point - arg + 1);
247 memcpy (arg_prefix, arg, point - arg);
248 arg_prefix[point - arg] = 0;
250 completions = complete_line (point, arg, argpoint);
256 for (size = 0; completions[size]; ++size)
258 qsort (completions, size, sizeof (char *), compare_strings);
260 /* We do extra processing here since we only want to print each
266 printf_unfiltered ("%s%s\n", arg_prefix, completions[item]);
267 next_item = item + 1;
268 while (next_item < size
269 && ! strcmp (completions[item], completions[next_item]))
271 xfree (completions[next_item]);
275 xfree (completions[item]);
284 is_complete_command (struct cmd_list_element *c)
286 return cmd_cfunc_eq (c, complete_command);
290 show_version (char *args, int from_tty)
293 print_gdb_version (gdb_stdout);
294 printf_filtered ("\n");
298 /* Handle the quit command. */
301 quit_command (char *args, int from_tty)
303 if (!quit_confirm ())
304 error ("Not confirmed.");
305 quit_force (args, from_tty);
309 pwd_command (char *args, int from_tty)
312 error ("The \"pwd\" command does not take an argument: %s", args);
313 getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
315 if (strcmp (gdb_dirbuf, current_directory) != 0)
316 printf_unfiltered ("Working directory %s\n (canonically %s).\n",
317 current_directory, gdb_dirbuf);
319 printf_unfiltered ("Working directory %s.\n", current_directory);
323 cd_command (char *dir, int from_tty)
326 /* Found something other than leading repetitions of "/..". */
330 /* If the new directory is absolute, repeat is a no-op; if relative,
331 repeat might be useful but is more likely to be a mistake. */
335 error_no_arg ("new working directory");
337 dir = tilde_expand (dir);
338 make_cleanup (xfree, dir);
341 perror_with_name (dir);
343 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
344 /* There's too much mess with DOSish names like "d:", "d:.",
345 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
346 simply get the canonicalized name of the current directory. */
347 dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
351 if (IS_DIR_SEPARATOR (dir[len - 1]))
353 /* Remove the trailing slash unless this is a root directory
354 (including a drive letter on non-Unix systems). */
355 if (!(len == 1) /* "/" */
356 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
357 && !(len == 3 && dir[1] == ':') /* "d:/" */
363 dir = savestring (dir, len);
364 if (IS_ABSOLUTE_PATH (dir))
365 current_directory = dir;
368 if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]))
369 current_directory = concat (current_directory, dir, NULL);
371 current_directory = concat (current_directory, SLASH_STRING, dir, NULL);
375 /* Now simplify any occurrences of `.' and `..' in the pathname. */
378 for (p = current_directory; *p;)
380 if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.'
381 && (p[2] == 0 || IS_DIR_SEPARATOR (p[2])))
383 else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.'
384 && (p[3] == 0 || IS_DIR_SEPARATOR (p[3])))
388 /* Search backwards for the directory just before the "/.."
389 and obliterate it and the "/..". */
391 while (q != current_directory && !IS_DIR_SEPARATOR (q[-1]))
394 if (q == current_directory)
395 /* current_directory is
396 a relative pathname ("can't happen"--leave it alone). */
400 strcpy (q - 1, p + 3);
405 /* We are dealing with leading repetitions of "/..", for example
406 "/../..", which is the Mach super-root. */
416 forget_cached_source_info ();
419 pwd_command ((char *) 0, 1);
423 source_command (char *args, int from_tty)
426 struct cleanup *old_cleanups;
431 error ("source command requires pathname of file to source.");
434 file = tilde_expand (file);
435 old_cleanups = make_cleanup (xfree, file);
437 stream = fopen (file, FOPEN_RT);
441 perror_with_name (file);
446 script_from_file (stream, file);
448 do_cleanups (old_cleanups);
452 echo_command (char *text, int from_tty)
458 while ((c = *p++) != '\0')
462 /* \ at end of argument is used after spaces
463 so they won't be lost. */
467 c = parse_escape (&p);
469 printf_filtered ("%c", c);
472 printf_filtered ("%c", c);
475 /* Force this output to appear now. */
477 gdb_flush (gdb_stdout);
481 shell_escape (char *arg, int from_tty)
484 /* If ARG is NULL, they want an inferior shell, but `system' just
485 reports if the shell is available when passed a NULL arg. */
486 int rc = system (arg ? arg : "");
489 arg = "inferior shell";
493 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
494 safe_strerror (errno));
495 gdb_flush (gdb_stderr);
499 fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
500 gdb_flush (gdb_stderr);
503 /* Make sure to return to the directory GDB thinks it is, in case the
504 shell command we just ran changed it. */
505 chdir (current_directory);
507 #else /* Can fork. */
510 if ((pid = vfork ()) == 0)
512 char *p, *user_shell;
514 if ((user_shell = (char *) getenv ("SHELL")) == NULL)
515 user_shell = "/bin/sh";
517 /* Get the name of the shell for arg0 */
518 if ((p = strrchr (user_shell, '/')) == NULL)
521 p++; /* Get past '/' */
524 execl (user_shell, p, (char *) 0);
526 execl (user_shell, p, "-c", arg, (char *) 0);
528 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell,
529 safe_strerror (errno));
530 gdb_flush (gdb_stderr);
535 while ((rc = wait (&status)) != pid && rc != -1)
538 error ("Fork failed");
539 #endif /* Can fork. */
543 edit_command (char *arg, int from_tty)
545 struct symtabs_and_lines sals;
546 struct symtab_and_line sal;
554 /* Pull in the current default source line if necessary */
557 set_default_source_symtab_and_line ();
558 sal = get_current_source_symtab_and_line ();
561 /* bare "edit" edits file with present line. */
566 error ("No default source file yet.");
567 sal.line += get_lines_to_list () / 2;
572 /* Now should only be one argument -- decode it in SAL */
575 sals = decode_line_1 (&arg1, 0, 0, 0, 0, 0);
577 if (! sals.nelts) return; /* C++ */
578 if (sals.nelts > 1) {
579 ambiguous_line_spec (&sals);
588 error ("Junk at end of line specification.");
590 /* if line was specified by address,
591 first print exactly which line, and which file.
592 In this case, sal.symtab == 0 means address is outside
593 of all known source files, not that user failed to give a filename. */
597 /* FIXME-32x64--assumes sal.pc fits in long. */
598 error ("No source file for address %s.",
599 local_hex_string((unsigned long) sal.pc));
600 sym = find_pc_function (sal.pc);
603 print_address_numeric (sal.pc, 1, gdb_stdout);
604 printf_filtered (" is in ");
605 fputs_filtered (SYMBOL_PRINT_NAME (sym), gdb_stdout);
606 printf_filtered (" (%s:%d).\n", sal.symtab->filename, sal.line);
610 print_address_numeric (sal.pc, 1, gdb_stdout);
611 printf_filtered (" is at %s:%d.\n",
612 sal.symtab->filename, sal.line);
616 /* If what was given does not imply a symtab, it must be an undebuggable
617 symbol which means no source code. */
620 error ("No line number known for %s.", arg);
623 if ((editor = (char *) getenv ("EDITOR")) == NULL)
626 /* Approximate base-10 log of line to 1 unit for digit count */
627 for(log10=32, m=0x80000000; !(sal.line & m) && log10>0; log10--, m=m>>1);
628 log10 = 1 + (int)((log10 + (0 == ((m-1) & sal.line)))/3.32192809);
630 cmdlen = strlen(editor) + 1
631 + (NULL == sal.symtab->dirname ? 0 : strlen(sal.symtab->dirname) + 1)
632 + (NULL == sal.symtab->filename? 0 : strlen(sal.symtab->filename)+ 1)
636 sprintf(p,"%s +%d %s%s",editor,sal.line,
637 (NULL == sal.symtab->dirname ? "./" :
638 (NULL != sal.symtab->filename && *(sal.symtab->filename) != '/') ?
639 sal.symtab->dirname : ""),
640 (NULL == sal.symtab->filename ? "unknown" : sal.symtab->filename)
642 shell_escape(p, from_tty);
648 list_command (char *arg, int from_tty)
650 struct symtabs_and_lines sals, sals_end;
651 struct symtab_and_line sal, sal_end, cursal;
660 /* Pull in the current default source line if necessary */
661 if (arg == 0 || arg[0] == '+' || arg[0] == '-')
663 set_default_source_symtab_and_line ();
664 cursal = get_current_source_symtab_and_line ();
667 /* "l" or "l +" lists next ten lines. */
669 if (arg == 0 || strcmp (arg, "+") == 0)
671 print_source_lines (cursal.symtab, cursal.line,
672 cursal.line + get_lines_to_list (), 0);
676 /* "l -" lists previous ten lines, the ones before the ten just listed. */
677 if (strcmp (arg, "-") == 0)
679 print_source_lines (cursal.symtab,
680 max (get_first_line_listed () - get_lines_to_list (), 1),
681 get_first_line_listed (), 0);
685 /* Now if there is only one argument, decode it in SAL
687 If there are two arguments, decode them in SAL and SAL_END
688 and clear NO_END; however, if one of the arguments is blank,
689 set DUMMY_BEG or DUMMY_END to record that fact. */
691 if (!have_full_symbols () && !have_partial_symbols ())
692 error ("No symbol table is loaded. Use the \"file\" command.");
699 sals = decode_line_1 (&arg1, 0, 0, 0, 0, 0);
705 ambiguous_line_spec (&sals);
714 /* Record whether the BEG arg is all digits. */
716 for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++);
717 linenum_beg = (p == arg1);
719 while (*arg1 == ' ' || *arg1 == '\t')
725 while (*arg1 == ' ' || *arg1 == '\t')
732 sals_end = decode_line_1 (&arg1, 0, 0, 0, 0, 0);
734 sals_end = decode_line_1 (&arg1, 0, sal.symtab, sal.line, 0, 0);
735 if (sals_end.nelts == 0)
737 if (sals_end.nelts > 1)
739 ambiguous_line_spec (&sals_end);
740 xfree (sals_end.sals);
743 sal_end = sals_end.sals[0];
744 xfree (sals_end.sals);
749 error ("Junk at end of line specification.");
751 if (!no_end && !dummy_beg && !dummy_end
752 && sal.symtab != sal_end.symtab)
753 error ("Specified start and end are in different files.");
754 if (dummy_beg && dummy_end)
755 error ("Two empty args do not say what lines to list.");
757 /* if line was specified by address,
758 first print exactly which line, and which file.
759 In this case, sal.symtab == 0 means address is outside
760 of all known source files, not that user failed to give a filename. */
764 /* FIXME-32x64--assumes sal.pc fits in long. */
765 error ("No source file for address %s.",
766 local_hex_string ((unsigned long) sal.pc));
767 sym = find_pc_function (sal.pc);
770 print_address_numeric (sal.pc, 1, gdb_stdout);
771 printf_filtered (" is in ");
772 fputs_filtered (SYMBOL_PRINT_NAME (sym), gdb_stdout);
773 printf_filtered (" (%s:%d).\n", sal.symtab->filename, sal.line);
777 print_address_numeric (sal.pc, 1, gdb_stdout);
778 printf_filtered (" is at %s:%d.\n",
779 sal.symtab->filename, sal.line);
783 /* If line was not specified by just a line number,
784 and it does not imply a symtab, it must be an undebuggable symbol
785 which means no source code. */
787 if (!linenum_beg && sal.symtab == 0)
788 error ("No line number known for %s.", arg);
790 /* If this command is repeated with RET,
791 turn it into the no-arg variant. */
796 if (dummy_beg && sal_end.symtab == 0)
797 error ("No default source file yet. Do \"help list\".");
799 print_source_lines (sal_end.symtab,
800 max (sal_end.line - (get_lines_to_list () - 1), 1),
801 sal_end.line + 1, 0);
802 else if (sal.symtab == 0)
803 error ("No default source file yet. Do \"help list\".");
806 int first_line = sal.line - get_lines_to_list () / 2;
808 if (first_line < 1) first_line = 1;
810 print_source_lines (sal.symtab,
812 first_line + get_lines_to_list (),
816 print_source_lines (sal.symtab, sal.line,
818 ? sal.line + get_lines_to_list ()
823 /* Dump a specified section of assembly code. With no command line
824 arguments, this command will dump the assembly code for the
825 function surrounding the pc value in the selected frame. With one
826 argument, it will dump the assembly code surrounding that pc value.
827 Two arguments are interpeted as bounds within which to dump
831 disassemble_command (char *arg, int from_tty)
835 CORE_ADDR pc, pc_masked;
844 if (!deprecated_selected_frame)
845 error ("No frame selected.\n");
847 pc = get_frame_pc (deprecated_selected_frame);
848 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
849 error ("No function contains program counter for selected frame.\n");
851 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
854 low = tuiGetLowDisassemblyAddress (low, pc);
856 low += FUNCTION_START_OFFSET;
858 else if (!(space_index = (char *) strchr (arg, ' ')))
861 pc = parse_and_eval_address (arg);
862 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
863 error ("No function contains specified address.\n");
865 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
868 low = tuiGetLowDisassemblyAddress (low, pc);
870 low += FUNCTION_START_OFFSET;
876 low = parse_and_eval_address (arg);
877 high = parse_and_eval_address (space_index + 1);
881 if (!tui_is_window_visible (DISASSEM_WIN))
884 printf_filtered ("Dump of assembler code ");
887 printf_filtered ("for function %s:\n", name);
891 printf_filtered ("from ");
892 print_address_numeric (low, 1, gdb_stdout);
893 printf_filtered (" to ");
894 print_address_numeric (high, 1, gdb_stdout);
895 printf_filtered (":\n");
898 /* Dump the specified range. */
899 gdb_disassembly (uiout, 0, 0, 0, -1, low, high);
901 printf_filtered ("End of assembler dump.\n");
902 gdb_flush (gdb_stdout);
907 tui_show_assembly (low);
913 make_command (char *arg, int from_tty)
921 p = xmalloc (sizeof ("make ") + strlen (arg));
923 strcpy (p + sizeof ("make ") - 1, arg);
926 shell_escape (p, from_tty);
930 show_user (char *args, int from_tty)
932 struct cmd_list_element *c;
933 extern struct cmd_list_element *cmdlist;
937 c = lookup_cmd (&args, cmdlist, "", 0, 1);
938 if (c->class != class_user)
939 error ("Not a user command.");
940 show_user_1 (c, gdb_stdout);
944 for (c = cmdlist; c; c = c->next)
946 if (c->class == class_user)
947 show_user_1 (c, gdb_stdout);
952 /* Search through names of commands and documentations for a certain
956 apropos_command (char *searchstr, int from_tty)
958 extern struct cmd_list_element *cmdlist; /*This is the main command list*/
960 char *pattern_fastmap;
961 char errorbuffer[512];
962 pattern_fastmap = xcalloc (256, sizeof (char));
963 if (searchstr == NULL)
964 error("REGEXP string is empty");
966 if (regcomp(&pattern,searchstr,REG_ICASE) == 0)
968 pattern.fastmap=pattern_fastmap;
969 re_compile_fastmap(&pattern);
970 apropos_cmd (gdb_stdout,cmdlist,&pattern,"");
974 regerror(regcomp(&pattern,searchstr,REG_ICASE),NULL,errorbuffer,512);
975 error("Error in regular expression:%s",errorbuffer);
977 xfree (pattern_fastmap);
980 /* Print a list of files and line numbers which a user may choose from
981 in order to list a function which was specified ambiguously (as with
982 `list classname::overloadedfuncname', for example). The vector in
983 SALS provides the filenames and line numbers. */
986 ambiguous_line_spec (struct symtabs_and_lines *sals)
990 for (i = 0; i < sals->nelts; ++i)
991 printf_filtered ("file: \"%s\", line number: %d\n",
992 sals->sals[i].symtab->filename, sals->sals[i].line);
996 set_debug (char *arg, int from_tty)
998 printf_unfiltered ("\"set debug\" must be followed by the name of a print subcommand.\n");
999 help_list (setdebuglist, "set debug ", -1, gdb_stdout);
1003 show_debug (char *args, int from_tty)
1005 cmd_show_list (showdebuglist, from_tty, "");
1009 init_cmd_lists (void)
1011 max_user_call_depth = 1024;
1020 enablebreaklist = NULL;
1025 showhistlist = NULL;
1026 unsethistlist = NULL;
1027 maintenancelist = NULL;
1028 maintenanceinfolist = NULL;
1029 maintenanceprintlist = NULL;
1030 setprintlist = NULL;
1031 showprintlist = NULL;
1032 setchecklist = NULL;
1033 showchecklist = NULL;
1038 init_cli_cmds (void)
1040 struct cmd_list_element *c;
1042 /* Define the classes of commands.
1043 They will appear in the help list in the reverse of this order. */
1045 add_cmd ("internals", class_maintenance, NULL,
1046 "Maintenance commands.\n\
1047 Some gdb commands are provided just for use by gdb maintainers.\n\
1048 These commands are subject to frequent change, and may not be as\n\
1049 well documented as user commands.",
1051 add_cmd ("obscure", class_obscure, NULL, "Obscure features.", &cmdlist);
1052 add_cmd ("aliases", class_alias, NULL, "Aliases of other commands.", &cmdlist);
1053 add_cmd ("user-defined", class_user, NULL, "User-defined commands.\n\
1054 The commands in this class are those defined by the user.\n\
1055 Use the \"define\" command to define a command.", &cmdlist);
1056 add_cmd ("support", class_support, NULL, "Support facilities.", &cmdlist);
1058 add_cmd ("status", class_info, NULL, "Status inquiries.", &cmdlist);
1059 add_cmd ("files", class_files, NULL, "Specifying and examining files.", &cmdlist);
1060 add_cmd ("breakpoints", class_breakpoint, NULL, "Making program stop at certain points.", &cmdlist);
1061 add_cmd ("data", class_vars, NULL, "Examining data.", &cmdlist);
1062 add_cmd ("stack", class_stack, NULL, "Examining the stack.\n\
1063 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1064 counting from zero for the innermost (currently executing) frame.\n\n\
1065 At any time gdb identifies one frame as the \"selected\" frame.\n\
1066 Variable lookups are done with respect to the selected frame.\n\
1067 When the program being debugged stops, gdb selects the innermost frame.\n\
1068 The commands below can be used to select other frames by number or address.",
1070 add_cmd ("running", class_run, NULL, "Running the program.", &cmdlist);
1072 /* Define general commands. */
1074 add_com ("pwd", class_files, pwd_command,
1075 "Print working directory. This is used for your program as well.");
1076 c = add_cmd ("cd", class_files, cd_command,
1077 "Set working directory to DIR for debugger and program being debugged.\n\
1078 The change does not take effect for the program being debugged\n\
1079 until the next time it is started.", &cmdlist);
1080 set_cmd_completer (c, filename_completer);
1082 add_com ("echo", class_support, echo_command,
1083 "Print a constant string. Give string as argument.\n\
1084 C escape sequences may be used in the argument.\n\
1085 No newline is added at the end of the argument;\n\
1086 use \"\\n\" if you want a newline to be printed.\n\
1087 Since leading and trailing whitespace are ignored in command arguments,\n\
1088 if you want to print some you must use \"\\\" before leading whitespace\n\
1089 to be printed or after trailing whitespace.");
1090 add_com ("document", class_support, document_command,
1091 "Document a user-defined command.\n\
1092 Give command name as argument. Give documentation on following lines.\n\
1093 End with a line of just \"end\".");
1094 add_com ("define", class_support, define_command,
1095 "Define a new command name. Command name is argument.\n\
1096 Definition appears on following lines, one command per line.\n\
1097 End with a line of just \"end\".\n\
1098 Use the \"document\" command to give documentation for the new command.\n\
1099 Commands defined in this way may have up to ten arguments.");
1101 c = add_cmd ("source", class_support, source_command,
1102 "Read commands from a file named FILE.\n\
1103 Note that the file \"" GDBINIT_FILENAME "\" is read automatically in this way\n\
1104 when gdb is started.", &cmdlist);
1105 set_cmd_completer (c, filename_completer);
1107 add_com ("quit", class_support, quit_command, "Exit gdb.");
1108 c = add_com ("help", class_support, help_command, "Print list of commands.");
1109 set_cmd_completer (c, command_completer);
1110 add_com_alias ("q", "quit", class_support, 1);
1111 add_com_alias ("h", "help", class_support, 1);
1113 c = add_set_cmd ("verbose", class_support, var_boolean, (char *) &info_verbose,
1116 add_show_from_set (c, &showlist);
1117 set_cmd_sfunc (c, set_verbose);
1118 set_verbose (NULL, 0, c);
1120 add_prefix_cmd ("history", class_support, set_history,
1121 "Generic command for setting command history parameters.",
1122 &sethistlist, "set history ", 0, &setlist);
1123 add_prefix_cmd ("history", class_support, show_history,
1124 "Generic command for showing command history parameters.",
1125 &showhistlist, "show history ", 0, &showlist);
1128 (add_set_cmd ("expansion", no_class, var_boolean, (char *) &history_expansion_p,
1129 "Set history expansion on command input.\n\
1130 Without an argument, history expansion is enabled.", &sethistlist),
1133 add_prefix_cmd ("info", class_info, info_command,
1134 "Generic command for showing things about the program being debugged.",
1135 &infolist, "info ", 0, &cmdlist);
1136 add_com_alias ("i", "info", class_info, 1);
1138 add_com ("complete", class_obscure, complete_command,
1139 "List the completions for the rest of the line as a command.");
1141 add_prefix_cmd ("show", class_info, show_command,
1142 "Generic command for showing things about the debugger.",
1143 &showlist, "show ", 0, &cmdlist);
1144 /* Another way to get at the same thing. */
1145 add_info ("set", show_command, "Show all GDB settings.");
1147 add_cmd ("commands", no_class, show_commands,
1148 "Show the history of commands you typed.\n\
1149 You can supply a command number to start with, or a `+' to start after\n\
1150 the previous command number shown.",
1153 add_cmd ("version", no_class, show_version,
1154 "Show what version of GDB this is.", &showlist);
1156 add_com ("while", class_support, while_command,
1157 "Execute nested commands WHILE the conditional expression is non zero.\n\
1158 The conditional expression must follow the word `while' and must in turn be\n\
1159 followed by a new line. The nested commands must be entered one per line,\n\
1160 and should be terminated by the word `end'.");
1162 add_com ("if", class_support, if_command,
1163 "Execute nested commands once IF the conditional expression is non zero.\n\
1164 The conditional expression must follow the word `if' and must in turn be\n\
1165 followed by a new line. The nested commands must be entered one per line,\n\
1166 and should be terminated by the word 'else' or `end'. If an else clause\n\
1167 is used, the same rules apply to its nested commands as to the first ones.");
1169 /* If target is open when baud changes, it doesn't take effect until the
1170 next open (I think, not sure). */
1171 add_show_from_set (add_set_cmd ("remotebaud", no_class,
1172 var_zinteger, (char *) &baud_rate,
1173 "Set baud rate for remote serial I/O.\n\
1174 This value is used to set the speed of the serial port when debugging\n\
1175 using remote targets.", &setlist),
1178 c = add_set_cmd ("remotedebug", no_class, var_zinteger,
1179 (char *) &remote_debug,
1180 "Set debugging of remote protocol.\n\
1181 When enabled, each packet sent or received with the remote target\n\
1182 is displayed.", &setlist);
1183 deprecate_cmd (c, "set debug remote");
1184 deprecate_cmd (add_show_from_set (c, &showlist), "show debug remote");
1186 add_show_from_set (add_set_cmd ("remote", no_class, var_zinteger,
1187 (char *) &remote_debug,
1188 "Set debugging of remote protocol.\n\
1189 When enabled, each packet sent or received with the remote target\n\
1190 is displayed.", &setdebuglist),
1194 add_set_cmd ("remotetimeout", no_class, var_integer, (char *) &remote_timeout,
1195 "Set timeout limit to wait for target to respond.\n\
1196 This value is used to set the time limit for gdb to wait for a response\n\
1197 from the target.", &setlist),
1200 add_prefix_cmd ("debug", no_class, set_debug,
1201 "Generic command for setting gdb debugging flags",
1202 &setdebuglist, "set debug ", 0, &setlist);
1204 add_prefix_cmd ("debug", no_class, show_debug,
1205 "Generic command for showing gdb debugging flags",
1206 &showdebuglist, "show debug ", 0, &showlist);
1208 c = add_com ("shell", class_support, shell_escape,
1209 "Execute the rest of the line as a shell command.\n\
1210 With no arguments, run an inferior shell.");
1211 set_cmd_completer (c, filename_completer);
1213 c = add_com ("edit", class_files, edit_command,
1214 concat ("Edit specified file or function.\n\
1215 With no argument, edits file containing most recent line listed.\n\
1217 Editing targets can be specified in these ways:\n\
1218 FILE:LINENUM, to edit at that line in that file,\n\
1219 FUNCTION, to edit at the beginning of that function,\n\
1220 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1221 *ADDRESS, to edit at the line containing that address.\n\
1222 Uses EDITOR environment variable contents as editor (or ex as default).",NULL));
1224 c->completer = location_completer;
1226 add_com ("list", class_files, list_command,
1227 concat ("List specified function or line.\n\
1228 With no argument, lists ten more lines after or around previous listing.\n\
1229 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1230 One argument specifies a line, and ten lines are listed around that line.\n\
1231 Two arguments with comma between specify starting and ending lines to list.\n\
1233 Lines can be specified in these ways:\n\
1234 LINENUM, to list around that line in current file,\n\
1235 FILE:LINENUM, to list around that line in that file,\n\
1236 FUNCTION, to list around beginning of that function,\n\
1237 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1238 *ADDRESS, to list around the line containing that address.\n\
1239 With two args if one is empty it stands for ten lines away from the other arg.", NULL));
1242 add_com_alias ("l", "list", class_files, 1);
1244 add_com_alias ("v", "list", class_files, 1);
1247 add_com_alias ("file", "list", class_files, 1);
1249 c = add_com ("disassemble", class_vars, disassemble_command,
1250 "Disassemble a specified section of memory.\n\
1251 Default is the function surrounding the pc of the selected frame.\n\
1252 With a single argument, the function surrounding that address is dumped.\n\
1253 Two arguments are taken as a range of memory to dump.");
1254 set_cmd_completer (c, location_completer);
1256 add_com_alias ("va", "disassemble", class_xdb, 0);
1258 /* NOTE: cagney/2000-03-20: Being able to enter ``(gdb) !ls'' would
1259 be a really useful feature. Unfortunately, the below wont do
1260 this. Instead it adds support for the form ``(gdb) ! ls''
1261 (i.e. the space is required). If the ``!'' command below is
1262 added the complains about no ``!'' command would be replaced by
1263 complains about how the ``!'' command is broken :-) */
1265 add_com_alias ("!", "shell", class_support, 0);
1267 c = add_com ("make", class_support, make_command,
1268 "Run the ``make'' program using the rest of the line as arguments.");
1269 set_cmd_completer (c, filename_completer);
1270 add_cmd ("user", no_class, show_user,
1271 "Show definitions of user defined commands.\n\
1272 Argument is the name of the user defined command.\n\
1273 With no argument, show definitions of all user defined commands.", &showlist);
1274 add_com ("apropos", class_support, apropos_command, "Search for commands matching a REGEXP");
1277 add_set_cmd ("max-user-call-depth", no_class, var_integer,
1278 (char *) &max_user_call_depth,
1279 "Set the max call depth for user-defined commands.\n",