3 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
4 Free Software Foundation, Inc.
6 This file is part of GDB.
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.
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.
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/>. */
22 #include "arch-utils.h"
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 */
40 extern void disconnect_or_stop_tracing (int from_tty);
45 #include "cli/cli-decode.h"
46 #include "cli/cli-script.h"
47 #include "cli/cli-setshow.h"
48 #include "cli/cli-cmds.h"
51 #include "tui/tui.h" /* For tui_active et.al. */
56 /* Prototypes for local command functions */
58 static void complete_command (char *, int);
60 static void echo_command (char *, int);
62 static void pwd_command (char *, int);
64 static void show_version (char *, int);
66 static void help_command (char *, int);
68 static void show_command (char *, int);
70 static void info_command (char *, int);
72 static void show_debug (char *, int);
74 static void set_debug (char *, int);
76 static void show_user (char *, int);
78 static void make_command (char *, int);
80 static void shell_escape (char *, int);
82 static void edit_command (char *, int);
84 static void list_command (char *, int);
86 void apropos_command (char *, int);
88 /* Prototypes for local utility functions */
90 static void ambiguous_line_spec (struct symtabs_and_lines *);
92 /* Limit the call depth of user-defined commands */
93 int max_user_call_depth;
95 /* Define all cmd_list_elements. */
97 /* Chain containing all defined commands. */
99 struct cmd_list_element *cmdlist;
101 /* Chain containing all defined info subcommands. */
103 struct cmd_list_element *infolist;
105 /* Chain containing all defined enable subcommands. */
107 struct cmd_list_element *enablelist;
109 /* Chain containing all defined disable subcommands. */
111 struct cmd_list_element *disablelist;
113 /* Chain containing all defined toggle subcommands. */
115 struct cmd_list_element *togglelist;
117 /* Chain containing all defined stop subcommands. */
119 struct cmd_list_element *stoplist;
121 /* Chain containing all defined delete subcommands. */
123 struct cmd_list_element *deletelist;
125 /* Chain containing all defined detach subcommands. */
127 struct cmd_list_element *detachlist;
129 /* Chain containing all defined kill subcommands. */
131 struct cmd_list_element *killlist;
133 /* Chain containing all defined "enable breakpoint" subcommands. */
135 struct cmd_list_element *enablebreaklist;
137 /* Chain containing all defined set subcommands */
139 struct cmd_list_element *setlist;
141 /* Chain containing all defined unset subcommands */
143 struct cmd_list_element *unsetlist;
145 /* Chain containing all defined show subcommands. */
147 struct cmd_list_element *showlist;
149 /* Chain containing all defined \"set history\". */
151 struct cmd_list_element *sethistlist;
153 /* Chain containing all defined \"show history\". */
155 struct cmd_list_element *showhistlist;
157 /* Chain containing all defined \"unset history\". */
159 struct cmd_list_element *unsethistlist;
161 /* Chain containing all defined maintenance subcommands. */
163 struct cmd_list_element *maintenancelist;
165 /* Chain containing all defined "maintenance info" subcommands. */
167 struct cmd_list_element *maintenanceinfolist;
169 /* Chain containing all defined "maintenance print" subcommands. */
171 struct cmd_list_element *maintenanceprintlist;
173 struct cmd_list_element *setprintlist;
175 struct cmd_list_element *showprintlist;
177 struct cmd_list_element *setdebuglist;
179 struct cmd_list_element *showdebuglist;
181 struct cmd_list_element *setchecklist;
183 struct cmd_list_element *showchecklist;
185 /* Command tracing state. */
187 int source_verbose = 0;
188 int trace_commands = 0;
190 /* Utility used everywhere when at least one argument is needed and
194 error_no_arg (char *why)
196 error (_("Argument required (%s)."), why);
199 /* The "info" command is defined as a prefix, with allow_unknown = 0.
200 Therefore, its own definition is called only for "info" with no args. */
203 info_command (char *arg, int from_tty)
205 printf_unfiltered (_("\"info\" must be followed by the name of an info command.\n"));
206 help_list (infolist, "info ", -1, gdb_stdout);
209 /* The "show" command with no arguments shows all the settings. */
212 show_command (char *arg, int from_tty)
214 cmd_show_list (showlist, from_tty, "");
217 /* Provide documentation on command or list given by COMMAND. FROM_TTY
221 help_command (char *command, int from_tty)
223 help_cmd (command, gdb_stdout);
226 /* String compare function for qsort. */
228 compare_strings (const void *arg1, const void *arg2)
230 const char **s1 = (const char **) arg1;
231 const char **s2 = (const char **) arg2;
232 return strcmp (*s1, *s2);
235 /* The "complete" command is used by Emacs to implement completion. */
238 complete_command (char *arg, int from_tty)
242 char **completions, *point, *arg_prefix;
248 argpoint = strlen (arg);
250 /* complete_line assumes that its first argument is somewhere within,
251 and except for filenames at the beginning of, the word to be completed.
252 The following crude imitation of readline's word-breaking tries to
254 point = arg + argpoint;
257 if (strchr (rl_completer_word_break_characters, point[-1]) != 0)
262 arg_prefix = alloca (point - arg + 1);
263 memcpy (arg_prefix, arg, point - arg);
264 arg_prefix[point - arg] = 0;
266 completions = complete_line (point, arg, argpoint);
272 for (size = 0; completions[size]; ++size)
274 qsort (completions, size, sizeof (char *), compare_strings);
276 /* We do extra processing here since we only want to print each
282 printf_unfiltered ("%s%s\n", arg_prefix, completions[item]);
283 next_item = item + 1;
284 while (next_item < size
285 && ! strcmp (completions[item], completions[next_item]))
287 xfree (completions[next_item]);
291 xfree (completions[item]);
300 is_complete_command (struct cmd_list_element *c)
302 return cmd_cfunc_eq (c, complete_command);
306 show_version (char *args, int from_tty)
309 print_gdb_version (gdb_stdout);
310 printf_filtered ("\n");
314 /* Handle the quit command. */
317 quit_command (char *args, int from_tty)
319 if (!quit_confirm ())
320 error (_("Not confirmed."));
322 disconnect_or_stop_tracing (from_tty);
324 quit_force (args, from_tty);
328 pwd_command (char *args, int from_tty)
331 error (_("The \"pwd\" command does not take an argument: %s"), args);
332 if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)))
333 error (_("Error finding name of working directory: %s"),
334 safe_strerror (errno));
336 if (strcmp (gdb_dirbuf, current_directory) != 0)
337 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
338 current_directory, gdb_dirbuf);
340 printf_unfiltered (_("Working directory %s.\n"), current_directory);
344 cd_command (char *dir, int from_tty)
347 /* Found something other than leading repetitions of "/..". */
351 /* If the new directory is absolute, repeat is a no-op; if relative,
352 repeat might be useful but is more likely to be a mistake. */
356 error_no_arg (_("new working directory"));
358 dir = tilde_expand (dir);
359 make_cleanup (xfree, dir);
362 perror_with_name (dir);
364 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
365 /* There's too much mess with DOSish names like "d:", "d:.",
366 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
367 simply get the canonicalized name of the current directory. */
368 dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
372 if (IS_DIR_SEPARATOR (dir[len - 1]))
374 /* Remove the trailing slash unless this is a root directory
375 (including a drive letter on non-Unix systems). */
376 if (!(len == 1) /* "/" */
377 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
378 && !(len == 3 && dir[1] == ':') /* "d:/" */
384 dir = savestring (dir, len);
385 if (IS_ABSOLUTE_PATH (dir))
386 current_directory = dir;
389 if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]))
390 current_directory = concat (current_directory, dir, (char *)NULL);
392 current_directory = concat (current_directory, SLASH_STRING,
397 /* Now simplify any occurrences of `.' and `..' in the pathname. */
400 for (p = current_directory; *p;)
402 if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.'
403 && (p[2] == 0 || IS_DIR_SEPARATOR (p[2])))
405 else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.'
406 && (p[3] == 0 || IS_DIR_SEPARATOR (p[3])))
410 /* Search backwards for the directory just before the "/.."
411 and obliterate it and the "/..". */
413 while (q != current_directory && !IS_DIR_SEPARATOR (q[-1]))
416 if (q == current_directory)
417 /* current_directory is
418 a relative pathname ("can't happen"--leave it alone). */
422 strcpy (q - 1, p + 3);
427 /* We are dealing with leading repetitions of "/..", for example
428 "/../..", which is the Mach super-root. */
438 forget_cached_source_info ();
441 pwd_command ((char *) 0, 1);
445 source_script (char *file, int from_tty)
448 struct cleanup *old_cleanups;
449 char *full_pathname = NULL;
452 if (file == NULL || *file == 0)
454 error (_("source command requires file name of file to source."));
457 file = tilde_expand (file);
458 old_cleanups = make_cleanup (xfree, file);
460 /* Search for and open 'file' on the search path used for source
461 files. Put the full location in 'full_pathname'. */
462 fd = openp (source_path, OPF_TRY_CWD_FIRST,
463 file, O_RDONLY, &full_pathname);
464 make_cleanup (xfree, full_pathname);
466 /* Use the full path name, if it is found. */
467 if (full_pathname != NULL && fd != -1)
469 file = full_pathname;
475 perror_with_name (file);
478 do_cleanups (old_cleanups);
483 stream = fdopen (fd, FOPEN_RT);
484 script_from_file (stream, file);
486 do_cleanups (old_cleanups);
489 /* Return the source_verbose global variable to its previous state
490 on exit from the source command, by whatever means. */
492 source_verbose_cleanup (void *old_value)
494 source_verbose = *(int *)old_value;
499 source_command (char *args, int from_tty)
501 struct cleanup *old_cleanups;
503 int *old_source_verbose = xmalloc (sizeof(int));
505 *old_source_verbose = source_verbose;
506 old_cleanups = make_cleanup (source_verbose_cleanup, old_source_verbose);
508 /* -v causes the source command to run in verbose mode.
509 We still have to be able to handle filenames with spaces in a
510 backward compatible way, so buildargv is not appropriate. */
514 /* Make sure leading white space does not break the comparisons. */
515 while (isspace(args[0]))
518 /* Is -v the first thing in the string? */
519 if (args[0] == '-' && args[1] == 'v' && isspace (args[2]))
523 /* Trim -v and whitespace from the filename. */
525 while (isspace (file[0]))
530 source_script (file, from_tty);
535 echo_command (char *text, int from_tty)
541 while ((c = *p++) != '\0')
545 /* \ at end of argument is used after spaces
546 so they won't be lost. */
550 c = parse_escape (&p);
552 printf_filtered ("%c", c);
555 printf_filtered ("%c", c);
558 /* Force this output to appear now. */
560 gdb_flush (gdb_stdout);
564 shell_escape (char *arg, int from_tty)
566 #if defined(CANT_FORK) || \
567 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
568 /* If ARG is NULL, they want an inferior shell, but `system' just
569 reports if the shell is available when passed a NULL arg. */
570 int rc = system (arg ? arg : "");
573 arg = "inferior shell";
577 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
578 safe_strerror (errno));
579 gdb_flush (gdb_stderr);
583 fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
584 gdb_flush (gdb_stderr);
587 /* Make sure to return to the directory GDB thinks it is, in case the
588 shell command we just ran changed it. */
589 chdir (current_directory);
591 #else /* Can fork. */
594 if ((pid = vfork ()) == 0)
596 char *p, *user_shell;
598 if ((user_shell = (char *) getenv ("SHELL")) == NULL)
599 user_shell = "/bin/sh";
601 /* Get the name of the shell for arg0 */
602 if ((p = strrchr (user_shell, '/')) == NULL)
605 p++; /* Get past '/' */
608 execl (user_shell, p, (char *) 0);
610 execl (user_shell, p, "-c", arg, (char *) 0);
612 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell,
613 safe_strerror (errno));
614 gdb_flush (gdb_stderr);
619 while ((rc = wait (&status)) != pid && rc != -1)
622 error (_("Fork failed"));
623 #endif /* Can fork. */
627 edit_command (char *arg, int from_tty)
629 struct symtabs_and_lines sals;
630 struct symtab_and_line sal;
636 /* Pull in the current default source line if necessary. */
639 set_default_source_symtab_and_line ();
640 sal = get_current_source_symtab_and_line ();
643 /* bare "edit" edits file with present line. */
648 error (_("No default source file yet."));
649 sal.line += get_lines_to_list () / 2;
654 /* Now should only be one argument -- decode it in SAL. */
657 sals = decode_line_1 (&arg1, 0, 0, 0, 0, 0);
666 ambiguous_line_spec (&sals);
675 error (_("Junk at end of line specification."));
677 /* If line was specified by address,
678 first print exactly which line, and which file.
679 In this case, sal.symtab == 0 means address is outside
680 of all known source files, not that user failed to give a filename. */
683 struct gdbarch *gdbarch;
685 /* FIXME-32x64--assumes sal.pc fits in long. */
686 error (_("No source file for address %s."),
687 hex_string ((unsigned long) sal.pc));
689 gdbarch = get_objfile_arch (sal.symtab->objfile);
690 sym = find_pc_function (sal.pc);
692 printf_filtered ("%s is in %s (%s:%d).\n",
693 paddress (gdbarch, sal.pc),
694 SYMBOL_PRINT_NAME (sym),
695 sal.symtab->filename, sal.line);
697 printf_filtered ("%s is at %s:%d.\n",
698 paddress (gdbarch, sal.pc),
699 sal.symtab->filename, sal.line);
702 /* If what was given does not imply a symtab, it must be an undebuggable
703 symbol which means no source code. */
706 error (_("No line number known for %s."), arg);
709 if ((editor = (char *) getenv ("EDITOR")) == NULL)
712 /* If we don't already know the full absolute file name of the
713 source file, find it now. */
714 if (!sal.symtab->fullname)
716 fn = symtab_to_fullname (sal.symtab);
721 fn = sal.symtab->fullname;
723 /* Quote the file name, in case it has whitespace or other special
725 p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn);
726 shell_escape (p, from_tty);
731 list_command (char *arg, int from_tty)
733 struct symtabs_and_lines sals, sals_end;
734 struct symtab_and_line sal = { 0 };
735 struct symtab_and_line sal_end = { 0 };
736 struct symtab_and_line cursal = { 0 };
745 /* Pull in the current default source line if necessary */
746 if (arg == 0 || arg[0] == '+' || arg[0] == '-')
748 set_default_source_symtab_and_line ();
749 cursal = get_current_source_symtab_and_line ();
752 /* "l" or "l +" lists next ten lines. */
754 if (arg == 0 || strcmp (arg, "+") == 0)
756 print_source_lines (cursal.symtab, cursal.line,
757 cursal.line + get_lines_to_list (), 0);
761 /* "l -" lists previous ten lines, the ones before the ten just listed. */
762 if (strcmp (arg, "-") == 0)
764 print_source_lines (cursal.symtab,
765 max (get_first_line_listed () - get_lines_to_list (), 1),
766 get_first_line_listed (), 0);
770 /* Now if there is only one argument, decode it in SAL
772 If there are two arguments, decode them in SAL and SAL_END
773 and clear NO_END; however, if one of the arguments is blank,
774 set DUMMY_BEG or DUMMY_END to record that fact. */
776 if (!have_full_symbols () && !have_partial_symbols ())
777 error (_("No symbol table is loaded. Use the \"file\" command."));
784 sals = decode_line_1 (&arg1, 0, 0, 0, 0, 0);
790 ambiguous_line_spec (&sals);
799 /* Record whether the BEG arg is all digits. */
801 for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++);
802 linenum_beg = (p == arg1);
804 while (*arg1 == ' ' || *arg1 == '\t')
810 while (*arg1 == ' ' || *arg1 == '\t')
817 sals_end = decode_line_1 (&arg1, 0, 0, 0, 0, 0);
819 sals_end = decode_line_1 (&arg1, 0, sal.symtab, sal.line, 0, 0);
820 if (sals_end.nelts == 0)
822 if (sals_end.nelts > 1)
824 ambiguous_line_spec (&sals_end);
825 xfree (sals_end.sals);
828 sal_end = sals_end.sals[0];
829 xfree (sals_end.sals);
834 error (_("Junk at end of line specification."));
836 if (!no_end && !dummy_beg && !dummy_end
837 && sal.symtab != sal_end.symtab)
838 error (_("Specified start and end are in different files."));
839 if (dummy_beg && dummy_end)
840 error (_("Two empty args do not say what lines to list."));
842 /* if line was specified by address,
843 first print exactly which line, and which file.
844 In this case, sal.symtab == 0 means address is outside
845 of all known source files, not that user failed to give a filename. */
848 struct gdbarch *gdbarch;
850 /* FIXME-32x64--assumes sal.pc fits in long. */
851 error (_("No source file for address %s."),
852 hex_string ((unsigned long) sal.pc));
854 gdbarch = get_objfile_arch (sal.symtab->objfile);
855 sym = find_pc_function (sal.pc);
857 printf_filtered ("%s is in %s (%s:%d).\n",
858 paddress (gdbarch, sal.pc),
859 SYMBOL_PRINT_NAME (sym),
860 sal.symtab->filename, sal.line);
862 printf_filtered ("%s is at %s:%d.\n",
863 paddress (gdbarch, sal.pc),
864 sal.symtab->filename, sal.line);
867 /* If line was not specified by just a line number,
868 and it does not imply a symtab, it must be an undebuggable symbol
869 which means no source code. */
871 if (!linenum_beg && sal.symtab == 0)
872 error (_("No line number known for %s."), arg);
874 /* If this command is repeated with RET,
875 turn it into the no-arg variant. */
880 if (dummy_beg && sal_end.symtab == 0)
881 error (_("No default source file yet. Do \"help list\"."));
883 print_source_lines (sal_end.symtab,
884 max (sal_end.line - (get_lines_to_list () - 1), 1),
885 sal_end.line + 1, 0);
886 else if (sal.symtab == 0)
887 error (_("No default source file yet. Do \"help list\"."));
890 int first_line = sal.line - get_lines_to_list () / 2;
892 if (first_line < 1) first_line = 1;
894 print_source_lines (sal.symtab,
896 first_line + get_lines_to_list (),
900 print_source_lines (sal.symtab, sal.line,
902 ? sal.line + get_lines_to_list ()
907 /* Subroutine of disassemble_command to simplify it.
908 Perform the disassembly.
909 NAME is the name of the function if known, or NULL.
910 [LOW,HIGH) are the range of addresses to disassemble.
911 MIXED is non-zero to print source with the assembler. */
914 print_disassembly (struct gdbarch *gdbarch, const char *name,
915 CORE_ADDR low, CORE_ADDR high, int flags)
918 if (!tui_is_window_visible (DISASSEM_WIN))
921 printf_filtered ("Dump of assembler code ");
923 printf_filtered ("for function %s:\n", name);
925 printf_filtered ("from %s to %s:\n",
926 paddress (gdbarch, low), paddress (gdbarch, high));
928 /* Dump the specified range. */
929 gdb_disassembly (gdbarch, uiout, 0, flags, -1, low, high);
931 printf_filtered ("End of assembler dump.\n");
932 gdb_flush (gdb_stdout);
937 tui_show_assembly (gdbarch, low);
942 /* Subroutine of disassemble_command to simplify it.
943 Print a disassembly of the current function according to FLAGS. */
946 disassemble_current_function (int flags)
948 struct frame_info *frame;
949 struct gdbarch *gdbarch;
950 CORE_ADDR low, high, pc;
953 frame = get_selected_frame (_("No frame selected."));
954 gdbarch = get_frame_arch (frame);
955 pc = get_frame_pc (frame);
956 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
957 error (_("No function contains program counter for selected frame."));
959 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
962 /* FIXME: cagney/2004-02-07: This should be an observer. */
963 low = tui_get_low_disassembly_address (gdbarch, low, pc);
965 low += gdbarch_deprecated_function_start_offset (gdbarch);
967 print_disassembly (gdbarch, name, low, high, flags);
970 /* Dump a specified section of assembly code.
974 - dump the assembly code for the function of the current pc
975 disassemble [/mr] addr
976 - dump the assembly code for the function at ADDR
977 disassemble [/mr] low high
978 - dump the assembly code in the range [LOW,HIGH)
980 A /m modifier will include source code with the assembly.
981 A /r modifier will include raw instructions in hex with the assembly. */
984 disassemble_command (char *arg, int from_tty)
986 struct gdbarch *gdbarch = get_current_arch ();
989 CORE_ADDR pc, pc_masked;
995 if (arg && *arg == '/')
1000 error (_("Missing modifier."));
1002 while (*arg && ! isspace (*arg))
1007 flags |= DISASSEMBLY_SOURCE;
1010 flags |= DISASSEMBLY_RAW_INSN;
1013 error (_("Invalid disassembly modifier."));
1017 while (isspace (*arg))
1021 if (! arg || ! *arg)
1023 flags |= DISASSEMBLY_OMIT_FNAME;
1024 disassemble_current_function (flags);
1028 pc = value_as_address (parse_to_comma_and_eval (&arg));
1034 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1035 error (_("No function contains specified address."));
1037 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1040 /* FIXME: cagney/2004-02-07: This should be an observer. */
1041 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1043 low += gdbarch_deprecated_function_start_offset (gdbarch);
1044 flags |= DISASSEMBLY_OMIT_FNAME;
1048 /* Two arguments. */
1050 high = parse_and_eval_address (arg);
1053 print_disassembly (gdbarch, name, low, high, flags);
1057 make_command (char *arg, int from_tty)
1065 p = xmalloc (sizeof ("make ") + strlen (arg));
1066 strcpy (p, "make ");
1067 strcpy (p + sizeof ("make ") - 1, arg);
1070 shell_escape (p, from_tty);
1074 show_user (char *args, int from_tty)
1076 struct cmd_list_element *c;
1077 extern struct cmd_list_element *cmdlist;
1081 char *comname = args;
1082 c = lookup_cmd (&comname, cmdlist, "", 0, 1);
1083 if (c->class != class_user)
1084 error (_("Not a user command."));
1085 show_user_1 (c, "", args, gdb_stdout);
1089 for (c = cmdlist; c; c = c->next)
1091 if (c->class == class_user || c->prefixlist != NULL)
1092 show_user_1 (c, "", c->name, gdb_stdout);
1097 /* Search through names of commands and documentations for a certain
1101 apropos_command (char *searchstr, int from_tty)
1103 extern struct cmd_list_element *cmdlist; /*This is the main command list*/
1105 char *pattern_fastmap;
1106 char errorbuffer[512];
1107 pattern_fastmap = xcalloc (256, sizeof (char));
1108 if (searchstr == NULL)
1109 error (_("REGEXP string is empty"));
1111 if (regcomp(&pattern,searchstr,REG_ICASE) == 0)
1113 pattern.fastmap=pattern_fastmap;
1114 re_compile_fastmap(&pattern);
1115 apropos_cmd (gdb_stdout,cmdlist,&pattern,"");
1119 regerror(regcomp(&pattern,searchstr,REG_ICASE),NULL,errorbuffer,512);
1120 error (_("Error in regular expression:%s"),errorbuffer);
1122 xfree (pattern_fastmap);
1125 /* Print a list of files and line numbers which a user may choose from
1126 in order to list a function which was specified ambiguously (as with
1127 `list classname::overloadedfuncname', for example). The vector in
1128 SALS provides the filenames and line numbers. */
1131 ambiguous_line_spec (struct symtabs_and_lines *sals)
1135 for (i = 0; i < sals->nelts; ++i)
1136 printf_filtered (_("file: \"%s\", line number: %d\n"),
1137 sals->sals[i].symtab->filename, sals->sals[i].line);
1141 set_debug (char *arg, int from_tty)
1143 printf_unfiltered (_("\"set debug\" must be followed by the name of a debug subcommand.\n"));
1144 help_list (setdebuglist, "set debug ", -1, gdb_stdout);
1148 show_debug (char *args, int from_tty)
1150 cmd_show_list (showdebuglist, from_tty, "");
1154 init_cmd_lists (void)
1156 max_user_call_depth = 1024;
1166 enablebreaklist = NULL;
1171 showhistlist = NULL;
1172 unsethistlist = NULL;
1173 maintenancelist = NULL;
1174 maintenanceinfolist = NULL;
1175 maintenanceprintlist = NULL;
1176 setprintlist = NULL;
1177 showprintlist = NULL;
1178 setchecklist = NULL;
1179 showchecklist = NULL;
1183 show_info_verbose (struct ui_file *file, int from_tty,
1184 struct cmd_list_element *c,
1188 fprintf_filtered (file, _("\
1189 Verbose printing of informational messages is %s.\n"), value);
1191 fprintf_filtered (file, _("Verbosity is %s.\n"), value);
1195 show_history_expansion_p (struct ui_file *file, int from_tty,
1196 struct cmd_list_element *c, const char *value)
1198 fprintf_filtered (file, _("History expansion on command input is %s.\n"),
1203 show_baud_rate (struct ui_file *file, int from_tty,
1204 struct cmd_list_element *c, const char *value)
1206 fprintf_filtered (file, _("Baud rate for remote serial I/O is %s.\n"),
1211 show_remote_debug (struct ui_file *file, int from_tty,
1212 struct cmd_list_element *c, const char *value)
1214 fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"),
1219 show_remote_timeout (struct ui_file *file, int from_tty,
1220 struct cmd_list_element *c, const char *value)
1222 fprintf_filtered (file, _("\
1223 Timeout limit to wait for target to respond is %s.\n"),
1228 show_max_user_call_depth (struct ui_file *file, int from_tty,
1229 struct cmd_list_element *c, const char *value)
1231 fprintf_filtered (file, _("\
1232 The max call depth for user-defined commands is %s.\n"),
1238 init_cli_cmds (void)
1240 struct cmd_list_element *c;
1241 char *source_help_text;
1243 /* Define the classes of commands.
1244 They will appear in the help list in the reverse of this order. */
1246 add_cmd ("internals", class_maintenance, NULL, _("\
1247 Maintenance commands.\n\
1248 Some gdb commands are provided just for use by gdb maintainers.\n\
1249 These commands are subject to frequent change, and may not be as\n\
1250 well documented as user commands."),
1252 add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist);
1253 add_cmd ("aliases", class_alias, NULL, _("Aliases of other commands."), &cmdlist);
1254 add_cmd ("user-defined", class_user, NULL, _("\
1255 User-defined commands.\n\
1256 The commands in this class are those defined by the user.\n\
1257 Use the \"define\" command to define a command."), &cmdlist);
1258 add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist);
1260 add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist);
1261 add_cmd ("files", class_files, NULL, _("Specifying and examining files."),
1263 add_cmd ("breakpoints", class_breakpoint, NULL,
1264 _("Making program stop at certain points."), &cmdlist);
1265 add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist);
1266 add_cmd ("stack", class_stack, NULL, _("\
1267 Examining the stack.\n\
1268 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1269 counting from zero for the innermost (currently executing) frame.\n\n\
1270 At any time gdb identifies one frame as the \"selected\" frame.\n\
1271 Variable lookups are done with respect to the selected frame.\n\
1272 When the program being debugged stops, gdb selects the innermost frame.\n\
1273 The commands below can be used to select other frames by number or address."),
1275 add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist);
1277 /* Define general commands. */
1279 add_com ("pwd", class_files, pwd_command, _("\
1280 Print working directory. This is used for your program as well."));
1282 c = add_cmd ("cd", class_files, cd_command, _("\
1283 Set working directory to DIR for debugger and program being debugged.\n\
1284 The change does not take effect for the program being debugged\n\
1285 until the next time it is started."), &cmdlist);
1286 set_cmd_completer (c, filename_completer);
1288 add_com ("echo", class_support, echo_command, _("\
1289 Print a constant string. Give string as argument.\n\
1290 C escape sequences may be used in the argument.\n\
1291 No newline is added at the end of the argument;\n\
1292 use \"\\n\" if you want a newline to be printed.\n\
1293 Since leading and trailing whitespace are ignored in command arguments,\n\
1294 if you want to print some you must use \"\\\" before leading whitespace\n\
1295 to be printed or after trailing whitespace."));
1296 add_com ("document", class_support, document_command, _("\
1297 Document a user-defined command.\n\
1298 Give command name as argument. Give documentation on following lines.\n\
1299 End with a line of just \"end\"."));
1300 add_com ("define", class_support, define_command, _("\
1301 Define a new command name. Command name is argument.\n\
1302 Definition appears on following lines, one command per line.\n\
1303 End with a line of just \"end\".\n\
1304 Use the \"document\" command to give documentation for the new command.\n\
1305 Commands defined in this way may have up to ten arguments."));
1307 source_help_text = xstrprintf (_("\
1308 Read commands from a file named FILE.\n\
1309 Optional -v switch (before the filename) causes each command in\n\
1310 FILE to be echoed as it is executed.\n\
1311 Note that the file \"%s\" is read automatically in this way\n\
1312 when GDB is started."), gdbinit);
1313 c = add_cmd ("source", class_support, source_command,
1314 source_help_text, &cmdlist);
1315 set_cmd_completer (c, filename_completer);
1317 add_com ("quit", class_support, quit_command, _("Exit gdb."));
1318 c = add_com ("help", class_support, help_command,
1319 _("Print list of commands."));
1320 set_cmd_completer (c, command_completer);
1321 add_com_alias ("q", "quit", class_support, 1);
1322 add_com_alias ("h", "help", class_support, 1);
1324 add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\
1325 Set verbosity."), _("\
1326 Show verbosity."), NULL,
1329 &setlist, &showlist);
1331 add_prefix_cmd ("history", class_support, set_history,
1332 _("Generic command for setting command history parameters."),
1333 &sethistlist, "set history ", 0, &setlist);
1334 add_prefix_cmd ("history", class_support, show_history,
1335 _("Generic command for showing command history parameters."),
1336 &showhistlist, "show history ", 0, &showlist);
1338 add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\
1339 Set history expansion on command input."), _("\
1340 Show history expansion on command input."), _("\
1341 Without an argument, history expansion is enabled."),
1343 show_history_expansion_p,
1344 &sethistlist, &showhistlist);
1346 add_prefix_cmd ("info", class_info, info_command, _("\
1347 Generic command for showing things about the program being debugged."),
1348 &infolist, "info ", 0, &cmdlist);
1349 add_com_alias ("i", "info", class_info, 1);
1350 add_com_alias ("inf", "info", class_info, 1);
1352 add_com ("complete", class_obscure, complete_command,
1353 _("List the completions for the rest of the line as a command."));
1355 add_prefix_cmd ("show", class_info, show_command, _("\
1356 Generic command for showing things about the debugger."),
1357 &showlist, "show ", 0, &cmdlist);
1358 /* Another way to get at the same thing. */
1359 add_info ("set", show_command, _("Show all GDB settings."));
1361 add_cmd ("commands", no_class, show_commands, _("\
1362 Show the history of commands you typed.\n\
1363 You can supply a command number to start with, or a `+' to start after\n\
1364 the previous command number shown."),
1367 add_cmd ("version", no_class, show_version,
1368 _("Show what version of GDB this is."), &showlist);
1370 add_com ("while", class_support, while_command, _("\
1371 Execute nested commands WHILE the conditional expression is non zero.\n\
1372 The conditional expression must follow the word `while' and must in turn be\n\
1373 followed by a new line. The nested commands must be entered one per line,\n\
1374 and should be terminated by the word `end'."));
1376 add_com ("if", class_support, if_command, _("\
1377 Execute nested commands once IF the conditional expression is non zero.\n\
1378 The conditional expression must follow the word `if' and must in turn be\n\
1379 followed by a new line. The nested commands must be entered one per line,\n\
1380 and should be terminated by the word 'else' or `end'. If an else clause\n\
1381 is used, the same rules apply to its nested commands as to the first ones."));
1383 /* If target is open when baud changes, it doesn't take effect until the
1384 next open (I think, not sure). */
1385 add_setshow_zinteger_cmd ("remotebaud", no_class, &baud_rate, _("\
1386 Set baud rate for remote serial I/O."), _("\
1387 Show baud rate for remote serial I/O."), _("\
1388 This value is used to set the speed of the serial port when debugging\n\
1389 using remote targets."),
1392 &setlist, &showlist);
1394 add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\
1395 Set debugging of remote protocol."), _("\
1396 Show debugging of remote protocol."), _("\
1397 When enabled, each packet sent or received with the remote target\n\
1401 &setdebuglist, &showdebuglist);
1403 add_setshow_integer_cmd ("remotetimeout", no_class, &remote_timeout, _("\
1404 Set timeout limit to wait for target to respond."), _("\
1405 Show timeout limit to wait for target to respond."), _("\
1406 This value is used to set the time limit for gdb to wait for a response\n\
1409 show_remote_timeout,
1410 &setlist, &showlist);
1412 add_prefix_cmd ("debug", no_class, set_debug,
1413 _("Generic command for setting gdb debugging flags"),
1414 &setdebuglist, "set debug ", 0, &setlist);
1416 add_prefix_cmd ("debug", no_class, show_debug,
1417 _("Generic command for showing gdb debugging flags"),
1418 &showdebuglist, "show debug ", 0, &showlist);
1420 c = add_com ("shell", class_support, shell_escape, _("\
1421 Execute the rest of the line as a shell command.\n\
1422 With no arguments, run an inferior shell."));
1423 set_cmd_completer (c, filename_completer);
1425 c = add_com ("edit", class_files, edit_command, _("\
1426 Edit specified file or function.\n\
1427 With no argument, edits file containing most recent line listed.\n\
1428 Editing targets can be specified in these ways:\n\
1429 FILE:LINENUM, to edit at that line in that file,\n\
1430 FUNCTION, to edit at the beginning of that function,\n\
1431 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1432 *ADDRESS, to edit at the line containing that address.\n\
1433 Uses EDITOR environment variable contents as editor (or ex as default)."));
1435 c->completer = location_completer;
1437 add_com ("list", class_files, list_command, _("\
1438 List specified function or line.\n\
1439 With no argument, lists ten more lines after or around previous listing.\n\
1440 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1441 One argument specifies a line, and ten lines are listed around that line.\n\
1442 Two arguments with comma between specify starting and ending lines to list.\n\
1443 Lines can be specified in these ways:\n\
1444 LINENUM, to list around that line in current file,\n\
1445 FILE:LINENUM, to list around that line in that file,\n\
1446 FUNCTION, to list around beginning of that function,\n\
1447 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1448 *ADDRESS, to list around the line containing that address.\n\
1449 With two args if one is empty it stands for ten lines away from the other arg."));
1452 add_com_alias ("l", "list", class_files, 1);
1454 add_com_alias ("v", "list", class_files, 1);
1457 add_com_alias ("file", "list", class_files, 1);
1459 c = add_com ("disassemble", class_vars, disassemble_command, _("\
1460 Disassemble a specified section of memory.\n\
1461 Default is the function surrounding the pc of the selected frame.\n\
1462 With a /m modifier, source lines are included (if available).\n\
1463 With a /r modifier, raw instructions in hex are included.\n\
1464 With a single argument, the function surrounding that address is dumped.\n\
1465 Two arguments (separated by a comma) are taken as a range of memory to dump."));
1466 set_cmd_completer (c, location_completer);
1468 add_com_alias ("va", "disassemble", class_xdb, 0);
1470 /* NOTE: cagney/2000-03-20: Being able to enter ``(gdb) !ls'' would
1471 be a really useful feature. Unfortunately, the below wont do
1472 this. Instead it adds support for the form ``(gdb) ! ls''
1473 (i.e. the space is required). If the ``!'' command below is
1474 added the complains about no ``!'' command would be replaced by
1475 complains about how the ``!'' command is broken :-) */
1477 add_com_alias ("!", "shell", class_support, 0);
1479 c = add_com ("make", class_support, make_command, _("\
1480 Run the ``make'' program using the rest of the line as arguments."));
1481 set_cmd_completer (c, filename_completer);
1482 add_cmd ("user", no_class, show_user, _("\
1483 Show definitions of user defined commands.\n\
1484 Argument is the name of the user defined command.\n\
1485 With no argument, show definitions of all user defined commands."), &showlist);
1486 add_com ("apropos", class_support, apropos_command,
1487 _("Search for commands matching a REGEXP"));
1489 add_setshow_integer_cmd ("max-user-call-depth", no_class,
1490 &max_user_call_depth, _("\
1491 Set the max call depth for user-defined commands."), _("\
1492 Show the max call depth for user-defined commands."), NULL,
1494 show_max_user_call_depth,
1495 &setlist, &showlist);
1497 add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\
1498 Set tracing of GDB CLI commands."), _("\
1499 Show state of GDB CLI command tracing."), _("\
1500 When 'on', each command is displayed as it is executed."),
1503 &setlist, &showlist);