3 Copyright (C) 2000-2017 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 3 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, see <http://www.gnu.org/licenses/>. */
21 #include "arch-utils.h"
22 #include "readline/readline.h"
23 #include "readline/tilde.h"
24 #include "completer.h"
25 #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */
26 #include "gdb_wait.h" /* For shell escape implementation. */
27 #include "gdb_regex.h" /* Used by apropos_command. */
28 #include "gdb_vfork.h"
30 #include "expression.h"
34 #include "filenames.h" /* For DOSish file names. */
38 #include "tracepoint.h"
39 #include "filestuff.h"
45 #include "cli/cli-decode.h"
46 #include "cli/cli-script.h"
47 #include "cli/cli-setshow.h"
48 #include "cli/cli-cmds.h"
49 #include "cli/cli-utils.h"
51 #include "extension.h"
54 #include "tui/tui.h" /* For tui_active et.al. */
61 /* Prototypes for local command functions */
63 static void complete_command (char *, int);
65 static void echo_command (char *, int);
67 static void pwd_command (char *, int);
69 static void show_version (char *, int);
71 static void help_command (char *, int);
73 static void show_command (char *, int);
75 static void info_command (char *, int);
77 static void show_debug (char *, int);
79 static void set_debug (char *, int);
81 static void show_user (char *, int);
83 static void make_command (char *, int);
85 static void shell_escape (const char *, int);
87 static void edit_command (char *, int);
89 static void list_command (char *, int);
91 /* Prototypes for local utility functions */
93 static void ambiguous_line_spec (struct symtabs_and_lines
*);
95 static void filter_sals (struct symtabs_and_lines
*);
98 /* Limit the call depth of user-defined commands */
99 unsigned int max_user_call_depth
;
101 /* Define all cmd_list_elements. */
103 /* Chain containing all defined commands. */
105 struct cmd_list_element
*cmdlist
;
107 /* Chain containing all defined info subcommands. */
109 struct cmd_list_element
*infolist
;
111 /* Chain containing all defined enable subcommands. */
113 struct cmd_list_element
*enablelist
;
115 /* Chain containing all defined disable subcommands. */
117 struct cmd_list_element
*disablelist
;
119 /* Chain containing all defined stop subcommands. */
121 struct cmd_list_element
*stoplist
;
123 /* Chain containing all defined delete subcommands. */
125 struct cmd_list_element
*deletelist
;
127 /* Chain containing all defined detach subcommands. */
129 struct cmd_list_element
*detachlist
;
131 /* Chain containing all defined kill subcommands. */
133 struct cmd_list_element
*killlist
;
135 /* Chain containing all defined set subcommands */
137 struct cmd_list_element
*setlist
;
139 /* Chain containing all defined unset subcommands */
141 struct cmd_list_element
*unsetlist
;
143 /* Chain containing all defined show subcommands. */
145 struct cmd_list_element
*showlist
;
147 /* Chain containing all defined \"set history\". */
149 struct cmd_list_element
*sethistlist
;
151 /* Chain containing all defined \"show history\". */
153 struct cmd_list_element
*showhistlist
;
155 /* Chain containing all defined \"unset history\". */
157 struct cmd_list_element
*unsethistlist
;
159 /* Chain containing all defined maintenance subcommands. */
161 struct cmd_list_element
*maintenancelist
;
163 /* Chain containing all defined "maintenance info" subcommands. */
165 struct cmd_list_element
*maintenanceinfolist
;
167 /* Chain containing all defined "maintenance print" subcommands. */
169 struct cmd_list_element
*maintenanceprintlist
;
171 struct cmd_list_element
*setprintlist
;
173 struct cmd_list_element
*showprintlist
;
175 struct cmd_list_element
*setdebuglist
;
177 struct cmd_list_element
*showdebuglist
;
179 struct cmd_list_element
*setchecklist
;
181 struct cmd_list_element
*showchecklist
;
183 /* Command tracing state. */
185 int source_verbose
= 0;
186 int trace_commands
= 0;
188 /* 'script-extension' option support. */
190 static const char script_ext_off
[] = "off";
191 static const char script_ext_soft
[] = "soft";
192 static const char script_ext_strict
[] = "strict";
194 static const char *const script_ext_enums
[] = {
201 static const char *script_ext_mode
= script_ext_soft
;
203 /* Utility used everywhere when at least one argument is needed and
207 error_no_arg (const char *why
)
209 error (_("Argument required (%s)."), why
);
212 /* The "info" command is defined as a prefix, with allow_unknown = 0.
213 Therefore, its own definition is called only for "info" with no
217 info_command (char *arg
, int from_tty
)
219 printf_unfiltered (_("\"info\" must be followed by "
220 "the name of an info command.\n"));
221 help_list (infolist
, "info ", all_commands
, gdb_stdout
);
224 /* The "show" command with no arguments shows all the settings. */
227 show_command (char *arg
, int from_tty
)
229 cmd_show_list (showlist
, from_tty
, "");
232 /* Provide documentation on command or list given by COMMAND. FROM_TTY
236 help_command (char *command
, int from_tty
)
238 help_cmd (command
, gdb_stdout
);
242 /* Note: The "complete" command is used by Emacs to implement completion.
243 [Is that why this function writes output with *_unfiltered?] */
246 complete_command (char *arg_entry
, int from_tty
)
248 const char *arg
= arg_entry
;
253 if (max_completions
== 0)
255 /* Only print this for non-mi frontends. An MI frontend may not
256 be able to handle this. */
257 if (!current_uiout
->is_mi_like_p ())
259 printf_unfiltered (_("max-completions is zero,"
260 " completion is disabled.\n"));
267 argpoint
= strlen (arg
);
269 /* complete_line assumes that its first argument is somewhere
270 within, and except for filenames at the beginning of, the word to
271 be completed. The following crude imitation of readline's
272 word-breaking tries to accomodate this. */
273 const char *point
= arg
+ argpoint
;
276 if (strchr (rl_completer_word_break_characters
, point
[-1]) != 0)
281 completion_tracker tracker_handle_completions
;
285 complete_line (tracker_handle_completions
, point
, arg
, strlen (arg
));
287 CATCH (ex
, RETURN_MASK_ALL
)
292 std::string
arg_prefix (arg
, point
- arg
);
294 completion_result result
295 = (tracker_handle_completions
.build_completion_result
296 (point
, point
- arg
, strlen (arg
)));
298 if (result
.number_matches
!= 0)
300 if (result
.number_matches
== 1)
301 printf_unfiltered ("%s%s\n", arg_prefix
.c_str (), result
.match_list
[0]);
304 result
.sort_match_list ();
306 for (size_t i
= 0; i
< result
.number_matches
; i
++)
308 printf_unfiltered ("%s%s",
310 result
.match_list
[i
+ 1]);
311 printf_unfiltered ("\n");
315 if (result
.number_matches
== max_completions
)
317 /* ARG_PREFIX and POINT are included in the output so that emacs
318 will include the message in the output. */
319 printf_unfiltered (_("%s%s %s\n"),
320 arg_prefix
.c_str (), point
,
321 get_max_completions_reached_message ());
327 is_complete_command (struct cmd_list_element
*c
)
329 return cmd_cfunc_eq (c
, complete_command
);
333 show_version (char *args
, int from_tty
)
335 print_gdb_version (gdb_stdout
);
336 printf_filtered ("\n");
340 show_configuration (char *args
, int from_tty
)
342 print_gdb_configuration (gdb_stdout
);
345 /* Handle the quit command. */
348 quit_command (char *args
, int from_tty
)
352 /* An optional expression may be used to cause gdb to terminate with
353 the value of that expression. */
356 struct value
*val
= parse_and_eval (args
);
358 exit_code
= (int) value_as_long (val
);
361 if (!quit_confirm ())
362 error (_("Not confirmed."));
364 query_if_trace_running (from_tty
);
366 quit_force (args
? &exit_code
: NULL
, from_tty
);
370 pwd_command (char *args
, int from_tty
)
373 error (_("The \"pwd\" command does not take an argument: %s"), args
);
374 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
375 error (_("Error finding name of working directory: %s"),
376 safe_strerror (errno
));
378 if (strcmp (gdb_dirbuf
, current_directory
) != 0)
379 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
380 current_directory
, gdb_dirbuf
);
382 printf_unfiltered (_("Working directory %s.\n"), current_directory
);
386 cd_command (char *dir
, int from_tty
)
389 /* Found something other than leading repetitions of "/..". */
392 struct cleanup
*cleanup
;
394 /* If the new directory is absolute, repeat is a no-op; if relative,
395 repeat might be useful but is more likely to be a mistake. */
398 dir
= tilde_expand (dir
!= NULL
? dir
: "~");
399 cleanup
= make_cleanup (xfree
, dir
);
402 perror_with_name (dir
);
404 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
405 /* There's too much mess with DOSish names like "d:", "d:.",
406 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
407 simply get the canonicalized name of the current directory. */
408 dir
= getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
));
412 if (IS_DIR_SEPARATOR (dir
[len
- 1]))
414 /* Remove the trailing slash unless this is a root directory
415 (including a drive letter on non-Unix systems). */
416 if (!(len
== 1) /* "/" */
417 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
418 && !(len
== 3 && dir
[1] == ':') /* "d:/" */
424 dir
= savestring (dir
, len
);
425 if (IS_ABSOLUTE_PATH (dir
))
426 current_directory
= dir
;
429 if (IS_DIR_SEPARATOR (current_directory
[strlen (current_directory
) - 1]))
430 current_directory
= concat (current_directory
, dir
, (char *)NULL
);
432 current_directory
= concat (current_directory
, SLASH_STRING
,
437 /* Now simplify any occurrences of `.' and `..' in the pathname. */
440 for (p
= current_directory
; *p
;)
442 if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.'
443 && (p
[2] == 0 || IS_DIR_SEPARATOR (p
[2])))
444 memmove (p
, p
+ 2, strlen (p
+ 2) + 1);
445 else if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.' && p
[2] == '.'
446 && (p
[3] == 0 || IS_DIR_SEPARATOR (p
[3])))
450 /* Search backwards for the directory just before the "/.."
451 and obliterate it and the "/..". */
454 while (q
!= current_directory
&& !IS_DIR_SEPARATOR (q
[-1]))
457 if (q
== current_directory
)
458 /* current_directory is
459 a relative pathname ("can't happen"--leave it alone). */
463 memmove (q
- 1, p
+ 3, strlen (p
+ 3) + 1);
468 /* We are dealing with leading repetitions of "/..", for
469 example "/../..", which is the Mach super-root. */
479 forget_cached_source_info ();
482 pwd_command ((char *) 0, 1);
484 do_cleanups (cleanup
);
487 /* Show the current value of the 'script-extension' option. */
490 show_script_ext_mode (struct ui_file
*file
, int from_tty
,
491 struct cmd_list_element
*c
, const char *value
)
493 fprintf_filtered (file
,
494 _("Script filename extension recognition is \"%s\".\n"),
498 /* Try to open SCRIPT_FILE.
499 If successful, the full path name is stored in *FULL_PATHP,
500 the stream is stored in *STREAMP, and return 1.
501 The caller is responsible for freeing *FULL_PATHP.
502 If not successful, return 0; errno is set for the last file
505 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
506 search for it in the source search path. */
509 find_and_open_script (const char *script_file
, int search_path
,
510 FILE **streamp
, char **full_pathp
)
514 struct cleanup
*old_cleanups
;
515 int search_flags
= OPF_TRY_CWD_FIRST
| OPF_RETURN_REALPATH
;
517 file
= tilde_expand (script_file
);
518 old_cleanups
= make_cleanup (xfree
, file
);
521 search_flags
|= OPF_SEARCH_IN_PATH
;
523 /* Search for and open 'file' on the search path used for source
524 files. Put the full location in *FULL_PATHP. */
525 fd
= openp (source_path
, search_flags
,
526 file
, O_RDONLY
, full_pathp
);
530 int save_errno
= errno
;
531 do_cleanups (old_cleanups
);
536 do_cleanups (old_cleanups
);
538 *streamp
= fdopen (fd
, FOPEN_RT
);
539 if (*streamp
== NULL
)
541 int save_errno
= errno
;
553 /* Load script FILE, which has already been opened as STREAM.
554 FILE_TO_OPEN is the form of FILE to use if one needs to open the file.
555 This is provided as FILE may have been found via the source search path.
556 An important thing to note here is that FILE may be a symlink to a file
557 with a different or non-existing suffix, and thus one cannot infer the
558 extension language from FILE_TO_OPEN. */
561 source_script_from_stream (FILE *stream
, const char *file
,
562 const char *file_to_open
)
564 if (script_ext_mode
!= script_ext_off
)
566 const struct extension_language_defn
*extlang
567 = get_ext_lang_of_file (file
);
571 if (ext_lang_present_p (extlang
))
573 script_sourcer_func
*sourcer
574 = ext_lang_script_sourcer (extlang
);
576 gdb_assert (sourcer
!= NULL
);
577 sourcer (extlang
, stream
, file_to_open
);
580 else if (script_ext_mode
== script_ext_soft
)
582 /* Assume the file is a gdb script.
583 This is handled below. */
586 throw_ext_lang_unsupported (extlang
);
590 script_from_file (stream
, file
);
593 /* Worker to perform the "source" command.
595 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
596 search for it in the source search path. */
599 source_script_with_search (const char *file
, int from_tty
, int search_path
)
603 struct cleanup
*old_cleanups
;
605 if (file
== NULL
|| *file
== 0)
606 error (_("source command requires file name of file to source."));
608 if (!find_and_open_script (file
, search_path
, &stream
, &full_path
))
610 /* The script wasn't found, or was otherwise inaccessible.
611 If the source command was invoked interactively, throw an
612 error. Otherwise (e.g. if it was invoked by a script),
613 just emit a warning, rather than cause an error. */
615 perror_with_name (file
);
618 perror_warning_with_name (file
);
623 old_cleanups
= make_cleanup (xfree
, full_path
);
624 make_cleanup_fclose (stream
);
625 /* The python support reopens the file, so we need to pass full_path here
626 in case the file was found on the search path. It's useful to do this
627 anyway so that error messages show the actual file used. But only do
628 this if we (may have) used search_path, as printing the full path in
629 errors for the non-search case can be more noise than signal. */
630 source_script_from_stream (stream
, file
, search_path
? full_path
: file
);
631 do_cleanups (old_cleanups
);
634 /* Wrapper around source_script_with_search to export it to main.c
635 for use in loading .gdbinit scripts. */
638 source_script (const char *file
, int from_tty
)
640 source_script_with_search (file
, from_tty
, 0);
643 /* Return the source_verbose global variable to its previous state
644 on exit from the source command, by whatever means. */
646 source_verbose_cleanup (void *old_value
)
648 source_verbose
= *(int *)old_value
;
653 source_command (char *args
, int from_tty
)
655 struct cleanup
*old_cleanups
;
657 int *old_source_verbose
= XNEW (int);
660 *old_source_verbose
= source_verbose
;
661 old_cleanups
= make_cleanup (source_verbose_cleanup
,
664 /* -v causes the source command to run in verbose mode.
665 -s causes the file to be searched in the source search path,
666 even if the file name contains a '/'.
667 We still have to be able to handle filenames with spaces in a
668 backward compatible way, so buildargv is not appropriate. */
672 while (args
[0] != '\0')
674 /* Make sure leading white space does not break the
676 args
= skip_spaces (args
);
681 if (args
[1] == 'v' && isspace (args
[2]))
685 /* Skip passed -v. */
688 else if (args
[1] == 's' && isspace (args
[2]))
692 /* Skip passed -s. */
699 file
= skip_spaces (args
);
702 source_script_with_search (file
, from_tty
, search_path
);
704 do_cleanups (old_cleanups
);
709 echo_command (char *text
, int from_tty
)
711 const char *p
= text
;
715 while ((c
= *p
++) != '\0')
719 /* \ at end of argument is used after spaces
720 so they won't be lost. */
724 c
= parse_escape (get_current_arch (), &p
);
726 printf_filtered ("%c", c
);
729 printf_filtered ("%c", c
);
732 /* Force this output to appear now. */
734 gdb_flush (gdb_stdout
);
738 shell_escape (const char *arg
, int from_tty
)
740 #if defined(CANT_FORK) || \
741 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
742 /* If ARG is NULL, they want an inferior shell, but `system' just
743 reports if the shell is available when passed a NULL arg. */
744 int rc
= system (arg
? arg
: "");
747 arg
= "inferior shell";
751 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", arg
,
752 safe_strerror (errno
));
753 gdb_flush (gdb_stderr
);
757 fprintf_unfiltered (gdb_stderr
, "%s exited with status %d\n", arg
, rc
);
758 gdb_flush (gdb_stderr
);
761 /* Make sure to return to the directory GDB thinks it is, in case
762 the shell command we just ran changed it. */
763 chdir (current_directory
);
765 #else /* Can fork. */
768 if ((pid
= vfork ()) == 0)
770 const char *p
, *user_shell
;
774 if ((user_shell
= (char *) getenv ("SHELL")) == NULL
)
775 user_shell
= "/bin/sh";
777 /* Get the name of the shell for arg0. */
778 p
= lbasename (user_shell
);
781 execl (user_shell
, p
, (char *) 0);
783 execl (user_shell
, p
, "-c", arg
, (char *) 0);
785 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", user_shell
,
786 safe_strerror (errno
));
787 gdb_flush (gdb_stderr
);
792 waitpid (pid
, &status
, 0);
794 error (_("Fork failed"));
795 #endif /* Can fork. */
798 /* Implementation of the "shell" command. */
801 shell_command (char *arg
, int from_tty
)
803 shell_escape (arg
, from_tty
);
807 edit_command (char *arg
, int from_tty
)
809 struct symtabs_and_lines sals
;
810 struct symtab_and_line sal
;
816 /* Pull in the current default source line if necessary. */
819 set_default_source_symtab_and_line ();
820 sal
= get_current_source_symtab_and_line ();
823 /* Bare "edit" edits file with present line. */
828 error (_("No default source file yet."));
829 sal
.line
+= get_lines_to_list () / 2;
835 /* Now should only be one argument -- decode it in SAL. */
837 event_location_up location
= string_to_event_location (&arg1
,
839 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
850 ambiguous_line_spec (&sals
);
859 error (_("Junk at end of line specification."));
861 /* If line was specified by address, first print exactly which
862 line, and which file. In this case, sal.symtab == 0 means
863 address is outside of all known source files, not that user
864 failed to give a filename. */
867 struct gdbarch
*gdbarch
;
870 error (_("No source file for address %s."),
871 paddress (get_current_arch (), sal
.pc
));
873 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
874 sym
= find_pc_function (sal
.pc
);
876 printf_filtered ("%s is in %s (%s:%d).\n",
877 paddress (gdbarch
, sal
.pc
),
878 SYMBOL_PRINT_NAME (sym
),
879 symtab_to_filename_for_display (sal
.symtab
),
882 printf_filtered ("%s is at %s:%d.\n",
883 paddress (gdbarch
, sal
.pc
),
884 symtab_to_filename_for_display (sal
.symtab
),
888 /* If what was given does not imply a symtab, it must be an
889 undebuggable symbol which means no source code. */
892 error (_("No line number known for %s."), arg
);
895 if ((editor
= (char *) getenv ("EDITOR")) == NULL
)
898 fn
= symtab_to_fullname (sal
.symtab
);
900 /* Quote the file name, in case it has whitespace or other special
902 p
= xstrprintf ("%s +%d \"%s\"", editor
, sal
.line
, fn
);
903 shell_escape (p
, from_tty
);
908 list_command (char *arg
, int from_tty
)
910 struct symtabs_and_lines sals
, sals_end
;
911 struct symtab_and_line sal
= { 0 };
912 struct symtab_and_line sal_end
= { 0 };
913 struct symtab_and_line cursal
= { 0 };
922 /* Pull in the current default source line if necessary. */
923 if (arg
== NULL
|| ((arg
[0] == '+' || arg
[0] == '-') && arg
[1] == '\0'))
925 set_default_source_symtab_and_line ();
926 cursal
= get_current_source_symtab_and_line ();
928 /* If this is the first "list" since we've set the current
929 source line, center the listing around that line. */
930 if (get_first_line_listed () == 0)
934 first
= std::max (cursal
.line
- get_lines_to_list () / 2, 1);
936 /* A small special case --- if listing backwards, and we
937 should list only one line, list the preceding line,
938 instead of the exact line we've just shown after e.g.,
939 stopping for a breakpoint. */
940 if (arg
!= NULL
&& arg
[0] == '-'
941 && get_lines_to_list () == 1 && first
> 1)
944 print_source_lines (cursal
.symtab
, first
,
945 first
+ get_lines_to_list (), 0);
948 /* "l" or "l +" lists next ten lines. */
949 else if (arg
== NULL
|| arg
[0] == '+')
950 print_source_lines (cursal
.symtab
, cursal
.line
,
951 cursal
.line
+ get_lines_to_list (), 0);
953 /* "l -" lists previous ten lines, the ones before the ten just
955 else if (arg
[0] == '-')
957 if (get_first_line_listed () == 1)
958 error (_("Already at the start of %s."),
959 symtab_to_filename_for_display (cursal
.symtab
));
960 print_source_lines (cursal
.symtab
,
961 std::max (get_first_line_listed ()
962 - get_lines_to_list (), 1),
963 get_first_line_listed (), 0);
969 /* Now if there is only one argument, decode it in SAL
971 If there are two arguments, decode them in SAL and SAL_END
972 and clear NO_END; however, if one of the arguments is blank,
973 set DUMMY_BEG or DUMMY_END to record that fact. */
975 if (!have_full_symbols () && !have_partial_symbols ())
976 error (_("No symbol table is loaded. Use the \"file\" command."));
983 event_location_up location
= string_to_event_location (&arg1
,
985 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
996 ambiguous_line_spec (&sals
);
1005 /* Record whether the BEG arg is all digits. */
1007 for (p
= arg
; p
!= arg1
&& *p
>= '0' && *p
<= '9'; p
++);
1008 linenum_beg
= (p
== arg1
);
1010 while (*arg1
== ' ' || *arg1
== '\t')
1016 while (*arg1
== ' ' || *arg1
== '\t')
1022 event_location_up location
1023 = string_to_event_location (&arg1
, current_language
);
1025 sals_end
= decode_line_1 (location
.get (),
1026 DECODE_LINE_LIST_MODE
, NULL
, NULL
, 0);
1028 sals_end
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
1029 NULL
, sal
.symtab
, sal
.line
);
1031 filter_sals (&sals_end
);
1032 if (sals_end
.nelts
== 0)
1034 if (sals_end
.nelts
> 1)
1036 ambiguous_line_spec (&sals_end
);
1037 xfree (sals_end
.sals
);
1040 sal_end
= sals_end
.sals
[0];
1041 xfree (sals_end
.sals
);
1046 error (_("Junk at end of line specification."));
1048 if (!no_end
&& !dummy_beg
&& !dummy_end
1049 && sal
.symtab
!= sal_end
.symtab
)
1050 error (_("Specified start and end are in different files."));
1051 if (dummy_beg
&& dummy_end
)
1052 error (_("Two empty args do not say what lines to list."));
1054 /* If line was specified by address,
1055 first print exactly which line, and which file.
1057 In this case, sal.symtab == 0 means address is outside of all
1058 known source files, not that user failed to give a filename. */
1061 struct gdbarch
*gdbarch
;
1063 if (sal
.symtab
== 0)
1064 error (_("No source file for address %s."),
1065 paddress (get_current_arch (), sal
.pc
));
1067 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
1068 sym
= find_pc_function (sal
.pc
);
1070 printf_filtered ("%s is in %s (%s:%d).\n",
1071 paddress (gdbarch
, sal
.pc
),
1072 SYMBOL_PRINT_NAME (sym
),
1073 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1075 printf_filtered ("%s is at %s:%d.\n",
1076 paddress (gdbarch
, sal
.pc
),
1077 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1080 /* If line was not specified by just a line number, and it does not
1081 imply a symtab, it must be an undebuggable symbol which means no
1084 if (!linenum_beg
&& sal
.symtab
== 0)
1085 error (_("No line number known for %s."), arg
);
1087 /* If this command is repeated with RET,
1088 turn it into the no-arg variant. */
1093 if (dummy_beg
&& sal_end
.symtab
== 0)
1094 error (_("No default source file yet. Do \"help list\"."));
1096 print_source_lines (sal_end
.symtab
,
1097 std::max (sal_end
.line
- (get_lines_to_list () - 1), 1),
1098 sal_end
.line
+ 1, 0);
1099 else if (sal
.symtab
== 0)
1100 error (_("No default source file yet. Do \"help list\"."));
1103 int first_line
= sal
.line
- get_lines_to_list () / 2;
1105 if (first_line
< 1) first_line
= 1;
1107 print_source_lines (sal
.symtab
,
1109 first_line
+ get_lines_to_list (),
1113 print_source_lines (sal
.symtab
, sal
.line
,
1115 ? sal
.line
+ get_lines_to_list ()
1116 : sal_end
.line
+ 1),
1120 /* Subroutine of disassemble_command to simplify it.
1121 Perform the disassembly.
1122 NAME is the name of the function if known, or NULL.
1123 [LOW,HIGH) are the range of addresses to disassemble.
1124 MIXED is non-zero to print source with the assembler. */
1127 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
1128 CORE_ADDR low
, CORE_ADDR high
, int flags
)
1131 if (!tui_is_window_visible (DISASSEM_WIN
))
1134 printf_filtered ("Dump of assembler code ");
1136 printf_filtered ("for function %s:\n", name
);
1138 printf_filtered ("from %s to %s:\n",
1139 paddress (gdbarch
, low
), paddress (gdbarch
, high
));
1141 /* Dump the specified range. */
1142 gdb_disassembly (gdbarch
, current_uiout
, flags
, -1, low
, high
);
1144 printf_filtered ("End of assembler dump.\n");
1145 gdb_flush (gdb_stdout
);
1150 tui_show_assembly (gdbarch
, low
);
1155 /* Subroutine of disassemble_command to simplify it.
1156 Print a disassembly of the current function according to FLAGS. */
1159 disassemble_current_function (int flags
)
1161 struct frame_info
*frame
;
1162 struct gdbarch
*gdbarch
;
1163 CORE_ADDR low
, high
, pc
;
1166 frame
= get_selected_frame (_("No frame selected."));
1167 gdbarch
= get_frame_arch (frame
);
1168 pc
= get_frame_address_in_block (frame
);
1169 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1170 error (_("No function contains program counter for selected frame."));
1172 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1175 /* FIXME: cagney/2004-02-07: This should be an observer. */
1176 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1178 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1180 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1183 /* Dump a specified section of assembly code.
1187 - dump the assembly code for the function of the current pc
1188 disassemble [/mrs] addr
1189 - dump the assembly code for the function at ADDR
1190 disassemble [/mrs] low,high
1191 disassemble [/mrs] low,+length
1192 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1194 A /m modifier will include source code with the assembly in a
1195 "source centric" view. This view lists only the file of the first insn,
1196 even if other source files are involved (e.g., inlined functions), and
1197 the output is in source order, even with optimized code. This view is
1198 considered deprecated as it hasn't been useful in practice.
1200 A /r modifier will include raw instructions in hex with the assembly.
1202 A /s modifier will include source code with the assembly, like /m, with
1203 two important differences:
1204 1) The output is still in pc address order.
1205 2) File names and contents for all relevant source files are displayed. */
1208 disassemble_command (char *arg
, int from_tty
)
1210 struct gdbarch
*gdbarch
= get_current_arch ();
1211 CORE_ADDR low
, high
;
1226 error (_("Missing modifier."));
1228 while (*p
&& ! isspace (*p
))
1233 flags
|= DISASSEMBLY_SOURCE_DEPRECATED
;
1236 flags
|= DISASSEMBLY_RAW_INSN
;
1239 flags
|= DISASSEMBLY_SOURCE
;
1242 error (_("Invalid disassembly modifier."));
1246 p
= skip_spaces_const (p
);
1249 if ((flags
& (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1250 == (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1251 error (_("Cannot specify both /m and /s."));
1255 flags
|= DISASSEMBLY_OMIT_FNAME
;
1256 disassemble_current_function (flags
);
1260 pc
= value_as_address (parse_to_comma_and_eval (&p
));
1266 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1267 error (_("No function contains specified address."));
1269 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1272 /* FIXME: cagney/2004-02-07: This should be an observer. */
1273 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1275 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1276 flags
|= DISASSEMBLY_OMIT_FNAME
;
1280 /* Two arguments. */
1283 p
= skip_spaces_const (p
);
1289 high
= parse_and_eval_address (p
);
1294 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1298 make_command (char *arg
, int from_tty
)
1301 shell_escape ("make", from_tty
);
1304 std::string cmd
= std::string ("make ") + arg
;
1306 shell_escape (cmd
.c_str (), from_tty
);
1311 show_user (char *args
, int from_tty
)
1313 struct cmd_list_element
*c
;
1314 extern struct cmd_list_element
*cmdlist
;
1318 const char *comname
= args
;
1320 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1321 if (!cli_user_command_p (c
))
1322 error (_("Not a user command."));
1323 show_user_1 (c
, "", args
, gdb_stdout
);
1327 for (c
= cmdlist
; c
; c
= c
->next
)
1329 if (cli_user_command_p (c
) || c
->prefixlist
!= NULL
)
1330 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1335 /* Search through names of commands and documentations for a certain
1336 regular expression. */
1339 apropos_command (char *searchstr
, int from_tty
)
1341 if (searchstr
== NULL
)
1342 error (_("REGEXP string is empty"));
1344 compiled_regex
pattern (searchstr
, REG_ICASE
,
1345 _("Error in regular expression"));
1347 apropos_cmd (gdb_stdout
, cmdlist
, pattern
, "");
1350 /* Subroutine of alias_command to simplify it.
1351 Return the first N elements of ARGV flattened back to a string
1352 with a space separating each element.
1353 ARGV may not be NULL.
1354 This does not take care of quoting elements in case they contain spaces
1358 argv_to_string (char **argv
, int n
)
1363 gdb_assert (argv
!= NULL
);
1364 gdb_assert (n
>= 0 && n
<= countargv (argv
));
1366 for (i
= 0; i
< n
; ++i
)
1376 /* Subroutine of alias_command to simplify it.
1377 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1380 valid_command_p (const char *command
)
1382 struct cmd_list_element
*c
;
1384 c
= lookup_cmd_1 (& command
, cmdlist
, NULL
, 1);
1386 if (c
== NULL
|| c
== (struct cmd_list_element
*) -1)
1389 /* This is the slightly tricky part.
1390 lookup_cmd_1 will return a pointer to the last part of COMMAND
1391 to match, leaving COMMAND pointing at the remainder. */
1392 while (*command
== ' ' || *command
== '\t')
1394 return *command
== '\0';
1397 /* Called when "alias" was incorrectly used. */
1400 alias_usage_error (void)
1402 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1405 /* Make an alias of an existing command. */
1408 alias_command (char *args
, int from_tty
)
1410 int i
, alias_argc
, command_argc
;
1411 int abbrev_flag
= 0;
1412 char *args2
, *equals
;
1413 const char *alias
, *command
;
1414 char **alias_argv
, **command_argv
;
1415 struct cleanup
*cleanup
;
1417 if (args
== NULL
|| strchr (args
, '=') == NULL
)
1418 alias_usage_error ();
1420 args2
= xstrdup (args
);
1421 cleanup
= make_cleanup (xfree
, args2
);
1422 equals
= strchr (args2
, '=');
1424 alias_argv
= gdb_buildargv (args2
);
1425 make_cleanup_freeargv (alias_argv
);
1426 command_argv
= gdb_buildargv (equals
+ 1);
1427 make_cleanup_freeargv (command_argv
);
1429 for (i
= 0; alias_argv
[i
] != NULL
; )
1431 if (strcmp (alias_argv
[i
], "-a") == 0)
1436 else if (strcmp (alias_argv
[i
], "--") == 0)
1445 if (alias_argv
[0] == NULL
|| command_argv
[0] == NULL
1446 || *alias_argv
[0] == '\0' || *command_argv
[0] == '\0')
1447 alias_usage_error ();
1449 for (i
= 0; alias_argv
[i
] != NULL
; ++i
)
1451 if (! valid_user_defined_cmd_name_p (alias_argv
[i
]))
1454 error (_("Invalid command name: %s"), alias_argv
[i
]);
1456 error (_("Invalid command element name: %s"), alias_argv
[i
]);
1460 alias_argc
= countargv (alias_argv
);
1461 command_argc
= countargv (command_argv
);
1463 /* COMMAND must exist.
1464 Reconstruct the command to remove any extraneous spaces,
1465 for better error messages. */
1466 std::string
command_string (argv_to_string (command_argv
, command_argc
));
1467 command
= command_string
.c_str ();
1468 if (! valid_command_p (command
))
1469 error (_("Invalid command to alias to: %s"), command
);
1471 /* ALIAS must not exist. */
1472 std::string
alias_string (argv_to_string (alias_argv
, alias_argc
));
1473 alias
= alias_string
.c_str ();
1474 if (valid_command_p (alias
))
1475 error (_("Alias already exists: %s"), alias
);
1477 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1478 Example: alias spe = set print elements
1480 Otherwise ALIAS and COMMAND must have the same number of words,
1481 and every word except the last must match; and the last word of
1482 ALIAS is made an alias of the last word of COMMAND.
1483 Example: alias set print elms = set pr elem
1484 Note that unambiguous abbreviations are allowed. */
1486 if (alias_argc
== 1)
1488 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1489 add_com_alias (xstrdup (alias_argv
[0]), command
, class_alias
,
1494 const char *alias_prefix
, *command_prefix
;
1495 struct cmd_list_element
*c_alias
, *c_command
;
1497 if (alias_argc
!= command_argc
)
1498 error (_("Mismatched command length between ALIAS and COMMAND."));
1500 /* Create copies of ALIAS and COMMAND without the last word,
1501 and use that to verify the leading elements match. */
1502 std::string
alias_prefix_string (argv_to_string (alias_argv
,
1504 std::string
command_prefix_string (argv_to_string (alias_argv
,
1506 alias_prefix
= alias_prefix_string
.c_str ();
1507 command_prefix
= command_prefix_string
.c_str ();
1509 c_command
= lookup_cmd_1 (& command_prefix
, cmdlist
, NULL
, 1);
1510 /* We've already tried to look up COMMAND. */
1511 gdb_assert (c_command
!= NULL
1512 && c_command
!= (struct cmd_list_element
*) -1);
1513 gdb_assert (c_command
->prefixlist
!= NULL
);
1514 c_alias
= lookup_cmd_1 (& alias_prefix
, cmdlist
, NULL
, 1);
1515 if (c_alias
!= c_command
)
1516 error (_("ALIAS and COMMAND prefixes do not match."));
1518 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1519 add_alias_cmd (xstrdup (alias_argv
[alias_argc
- 1]),
1520 command_argv
[command_argc
- 1],
1521 class_alias
, abbrev_flag
, c_command
->prefixlist
);
1524 do_cleanups (cleanup
);
1527 /* Print a list of files and line numbers which a user may choose from
1528 in order to list a function which was specified ambiguously (as
1529 with `list classname::overloadedfuncname', for example). The
1530 vector in SALS provides the filenames and line numbers. */
1533 ambiguous_line_spec (struct symtabs_and_lines
*sals
)
1537 for (i
= 0; i
< sals
->nelts
; ++i
)
1538 printf_filtered (_("file: \"%s\", line number: %d\n"),
1539 symtab_to_filename_for_display (sals
->sals
[i
].symtab
),
1540 sals
->sals
[i
].line
);
1543 /* Sort function for filter_sals. */
1546 compare_symtabs (const void *a
, const void *b
)
1548 const struct symtab_and_line
*sala
= (const struct symtab_and_line
*) a
;
1549 const struct symtab_and_line
*salb
= (const struct symtab_and_line
*) b
;
1550 const char *dira
= SYMTAB_DIRNAME (sala
->symtab
);
1551 const char *dirb
= SYMTAB_DIRNAME (salb
->symtab
);
1559 else if (dirb
== NULL
)
1566 r
= filename_cmp (dira
, dirb
);
1571 r
= filename_cmp (sala
->symtab
->filename
, salb
->symtab
->filename
);
1575 if (sala
->line
< salb
->line
)
1577 return sala
->line
== salb
->line
? 0 : 1;
1580 /* Remove any SALs that do not match the current program space, or
1581 which appear to be "file:line" duplicates. */
1584 filter_sals (struct symtabs_and_lines
*sals
)
1589 for (i
= 0; i
< sals
->nelts
; ++i
)
1591 if (sals
->sals
[i
].pspace
== current_program_space
1592 && sals
->sals
[i
].symtab
!= NULL
)
1594 sals
->sals
[out
] = sals
->sals
[i
];
1600 qsort (sals
->sals
, sals
->nelts
, sizeof (struct symtab_and_line
),
1605 for (i
= 1; i
< sals
->nelts
; ++i
)
1607 if (compare_symtabs (&sals
->sals
[prev
], &sals
->sals
[i
]))
1609 /* Symtabs differ. */
1610 sals
->sals
[out
] = sals
->sals
[i
];
1616 if (sals
->nelts
== 0)
1626 set_debug (char *arg
, int from_tty
)
1628 printf_unfiltered (_("\"set debug\" must be followed by "
1629 "the name of a debug subcommand.\n"));
1630 help_list (setdebuglist
, "set debug ", all_commands
, gdb_stdout
);
1634 show_debug (char *args
, int from_tty
)
1636 cmd_show_list (showdebuglist
, from_tty
, "");
1640 init_cmd_lists (void)
1642 max_user_call_depth
= 1024;
1646 show_info_verbose (struct ui_file
*file
, int from_tty
,
1647 struct cmd_list_element
*c
,
1651 fprintf_filtered (file
,
1652 _("Verbose printing of informational messages is %s.\n"),
1655 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1659 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1660 struct cmd_list_element
*c
, const char *value
)
1662 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1667 show_remote_debug (struct ui_file
*file
, int from_tty
,
1668 struct cmd_list_element
*c
, const char *value
)
1670 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1675 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1676 struct cmd_list_element
*c
, const char *value
)
1678 fprintf_filtered (file
,
1679 _("Timeout limit to wait for target to respond is %s.\n"),
1684 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1685 struct cmd_list_element
*c
, const char *value
)
1687 fprintf_filtered (file
,
1688 _("The max call depth for user-defined commands is %s.\n"),
1694 initialize_file_ftype _initialize_cli_cmds
;
1697 _initialize_cli_cmds (void)
1699 struct cmd_list_element
*c
;
1701 /* Define the classes of commands.
1702 They will appear in the help list in alphabetical order. */
1704 add_cmd ("internals", class_maintenance
, NULL
, _("\
1705 Maintenance commands.\n\
1706 Some gdb commands are provided just for use by gdb maintainers.\n\
1707 These commands are subject to frequent change, and may not be as\n\
1708 well documented as user commands."),
1710 add_cmd ("obscure", class_obscure
, NULL
, _("Obscure features."), &cmdlist
);
1711 add_cmd ("aliases", class_alias
, NULL
,
1712 _("Aliases of other commands."), &cmdlist
);
1713 add_cmd ("user-defined", class_user
, NULL
, _("\
1714 User-defined commands.\n\
1715 The commands in this class are those defined by the user.\n\
1716 Use the \"define\" command to define a command."), &cmdlist
);
1717 add_cmd ("support", class_support
, NULL
, _("Support facilities."), &cmdlist
);
1719 add_cmd ("status", class_info
, NULL
, _("Status inquiries."), &cmdlist
);
1720 add_cmd ("files", class_files
, NULL
, _("Specifying and examining files."),
1722 add_cmd ("breakpoints", class_breakpoint
, NULL
,
1723 _("Making program stop at certain points."), &cmdlist
);
1724 add_cmd ("data", class_vars
, NULL
, _("Examining data."), &cmdlist
);
1725 add_cmd ("stack", class_stack
, NULL
, _("\
1726 Examining the stack.\n\
1727 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1728 counting from zero for the innermost (currently executing) frame.\n\n\
1729 At any time gdb identifies one frame as the \"selected\" frame.\n\
1730 Variable lookups are done with respect to the selected frame.\n\
1731 When the program being debugged stops, gdb selects the innermost frame.\n\
1732 The commands below can be used to select other frames by number or address."),
1734 add_cmd ("running", class_run
, NULL
, _("Running the program."), &cmdlist
);
1736 /* Define general commands. */
1738 add_com ("pwd", class_files
, pwd_command
, _("\
1739 Print working directory. This is used for your program as well."));
1741 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1742 Set working directory to DIR for debugger and program being debugged.\n\
1743 The change does not take effect for the program being debugged\n\
1744 until the next time it is started."), &cmdlist
);
1745 set_cmd_completer (c
, filename_completer
);
1747 add_com ("echo", class_support
, echo_command
, _("\
1748 Print a constant string. Give string as argument.\n\
1749 C escape sequences may be used in the argument.\n\
1750 No newline is added at the end of the argument;\n\
1751 use \"\\n\" if you want a newline to be printed.\n\
1752 Since leading and trailing whitespace are ignored in command arguments,\n\
1753 if you want to print some you must use \"\\\" before leading whitespace\n\
1754 to be printed or after trailing whitespace."));
1756 add_setshow_enum_cmd ("script-extension", class_support
,
1757 script_ext_enums
, &script_ext_mode
, _("\
1758 Set mode for script filename extension recognition."), _("\
1759 Show mode for script filename extension recognition."), _("\
1760 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1761 soft == evaluate script according to filename extension, fallback to GDB script"
1763 strict == evaluate script according to filename extension, error if not supported"
1766 show_script_ext_mode
,
1767 &setlist
, &showlist
);
1769 add_com ("quit", class_support
, quit_command
, _("\
1771 Usage: quit [EXPR]\n\
1772 The optional expression EXPR, if present, is evaluated and the result\n\
1773 used as GDB's exit code. The default is zero."));
1774 c
= add_com ("help", class_support
, help_command
,
1775 _("Print list of commands."));
1776 set_cmd_completer (c
, command_completer
);
1777 add_com_alias ("q", "quit", class_support
, 1);
1778 add_com_alias ("h", "help", class_support
, 1);
1780 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1781 Set verbosity."), _("\
1782 Show verbosity."), NULL
,
1785 &setlist
, &showlist
);
1787 add_prefix_cmd ("history", class_support
, set_history
,
1788 _("Generic command for setting command history parameters."),
1789 &sethistlist
, "set history ", 0, &setlist
);
1790 add_prefix_cmd ("history", class_support
, show_history
,
1791 _("Generic command for showing command history parameters."),
1792 &showhistlist
, "show history ", 0, &showlist
);
1794 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1795 Set history expansion on command input."), _("\
1796 Show history expansion on command input."), _("\
1797 Without an argument, history expansion is enabled."),
1799 show_history_expansion_p
,
1800 &sethistlist
, &showhistlist
);
1802 add_prefix_cmd ("info", class_info
, info_command
, _("\
1803 Generic command for showing things about the program being debugged."),
1804 &infolist
, "info ", 0, &cmdlist
);
1805 add_com_alias ("i", "info", class_info
, 1);
1806 add_com_alias ("inf", "info", class_info
, 1);
1808 add_com ("complete", class_obscure
, complete_command
,
1809 _("List the completions for the rest of the line as a command."));
1811 add_prefix_cmd ("show", class_info
, show_command
, _("\
1812 Generic command for showing things about the debugger."),
1813 &showlist
, "show ", 0, &cmdlist
);
1814 /* Another way to get at the same thing. */
1815 add_info ("set", show_command
, _("Show all GDB settings."));
1817 add_cmd ("commands", no_set_class
, show_commands
, _("\
1818 Show the history of commands you typed.\n\
1819 You can supply a command number to start with, or a `+' to start after\n\
1820 the previous command number shown."),
1823 add_cmd ("version", no_set_class
, show_version
,
1824 _("Show what version of GDB this is."), &showlist
);
1826 add_cmd ("configuration", no_set_class
, show_configuration
,
1827 _("Show how GDB was configured at build time."), &showlist
);
1829 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1830 Set debugging of remote protocol."), _("\
1831 Show debugging of remote protocol."), _("\
1832 When enabled, each packet sent or received with the remote target\n\
1836 &setdebuglist
, &showdebuglist
);
1838 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class
,
1839 &remote_timeout
, _("\
1840 Set timeout limit to wait for target to respond."), _("\
1841 Show timeout limit to wait for target to respond."), _("\
1842 This value is used to set the time limit for gdb to wait for a response\n\
1845 show_remote_timeout
,
1846 &setlist
, &showlist
);
1848 add_prefix_cmd ("debug", no_class
, set_debug
,
1849 _("Generic command for setting gdb debugging flags"),
1850 &setdebuglist
, "set debug ", 0, &setlist
);
1852 add_prefix_cmd ("debug", no_class
, show_debug
,
1853 _("Generic command for showing gdb debugging flags"),
1854 &showdebuglist
, "show debug ", 0, &showlist
);
1856 c
= add_com ("shell", class_support
, shell_command
, _("\
1857 Execute the rest of the line as a shell command.\n\
1858 With no arguments, run an inferior shell."));
1859 set_cmd_completer (c
, filename_completer
);
1861 c
= add_com ("edit", class_files
, edit_command
, _("\
1862 Edit specified file or function.\n\
1863 With no argument, edits file containing most recent line listed.\n\
1864 Editing targets can be specified in these ways:\n\
1865 FILE:LINENUM, to edit at that line in that file,\n\
1866 FUNCTION, to edit at the beginning of that function,\n\
1867 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1868 *ADDRESS, to edit at the line containing that address.\n\
1869 Uses EDITOR environment variable contents as editor (or ex as default)."));
1871 c
->completer
= location_completer
;
1873 add_com ("list", class_files
, list_command
, _("\
1874 List specified function or line.\n\
1875 With no argument, lists ten more lines after or around previous listing.\n\
1876 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1877 One argument specifies a line, and ten lines are listed around that line.\n\
1878 Two arguments with comma between specify starting and ending lines to list.\n\
1879 Lines can be specified in these ways:\n\
1880 LINENUM, to list around that line in current file,\n\
1881 FILE:LINENUM, to list around that line in that file,\n\
1882 FUNCTION, to list around beginning of that function,\n\
1883 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1884 *ADDRESS, to list around the line containing that address.\n\
1885 With two args, if one is empty, it stands for ten lines away from\n\
1888 By default, when a single location is given, display ten lines.\n\
1889 This can be changed using \"set listsize\", and the current value\n\
1890 can be shown using \"show listsize\"."));
1892 add_com_alias ("l", "list", class_files
, 1);
1895 add_com_alias ("file", "list", class_files
, 1);
1897 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1898 Disassemble a specified section of memory.\n\
1899 Default is the function surrounding the pc of the selected frame.\n\
1901 With a /m modifier, source lines are included (if available).\n\
1902 This view is \"source centric\": the output is in source line order,\n\
1903 regardless of any optimization that is present. Only the main source file\n\
1904 is displayed, not those of, e.g., any inlined functions.\n\
1905 This modifier hasn't proved useful in practice and is deprecated\n\
1908 With a /s modifier, source lines are included (if available).\n\
1909 This differs from /m in two important respects:\n\
1910 - the output is still in pc address order, and\n\
1911 - file names and contents for all relevant source files are displayed.\n\
1913 With a /r modifier, raw instructions in hex are included.\n\
1915 With a single argument, the function surrounding that address is dumped.\n\
1916 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1917 in the form of \"start,end\", or \"start,+length\".\n\
1919 Note that the address is interpreted as an expression, not as a location\n\
1920 like in the \"break\" command.\n\
1921 So, for example, if you want to disassemble function bar in file foo.c\n\
1922 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1923 set_cmd_completer (c
, location_completer
);
1925 add_com_alias ("!", "shell", class_support
, 0);
1927 c
= add_com ("make", class_support
, make_command
, _("\
1928 Run the ``make'' program using the rest of the line as arguments."));
1929 set_cmd_completer (c
, filename_completer
);
1930 add_cmd ("user", no_class
, show_user
, _("\
1931 Show definitions of non-python/scheme user defined commands.\n\
1932 Argument is the name of the user defined command.\n\
1933 With no argument, show definitions of all user defined commands."), &showlist
);
1934 add_com ("apropos", class_support
, apropos_command
,
1935 _("Search for commands matching a REGEXP"));
1937 add_setshow_uinteger_cmd ("max-user-call-depth", no_class
,
1938 &max_user_call_depth
, _("\
1939 Set the max call depth for non-python/scheme user-defined commands."), _("\
1940 Show the max call depth for non-python/scheme user-defined commands."), NULL
,
1942 show_max_user_call_depth
,
1943 &setlist
, &showlist
);
1945 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1946 Set tracing of GDB CLI commands."), _("\
1947 Show state of GDB CLI command tracing."), _("\
1948 When 'on', each command is displayed as it is executed."),
1951 &setlist
, &showlist
);
1953 c
= add_com ("alias", class_support
, alias_command
, _("\
1954 Define a new command that is an alias of an existing command.\n\
1955 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1956 ALIAS is the name of the alias command to create.\n\
1957 COMMAND is the command being aliased to.\n\
1958 If \"-a\" is specified, the command is an abbreviation,\n\
1959 and will not appear in help command list output.\n\
1962 Make \"spe\" an alias of \"set print elements\":\n\
1963 alias spe = set print elements\n\
1964 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1965 alias -a set print elms = set print elements"));
1969 init_cli_cmds (void)
1971 struct cmd_list_element
*c
;
1972 char *source_help_text
;
1974 source_help_text
= xstrprintf (_("\
1975 Read commands from a file named FILE.\n\
1977 Usage: source [-s] [-v] FILE\n\
1978 -s: search for the script in the source search path,\n\
1979 even if FILE contains directories.\n\
1980 -v: each command in FILE is echoed as it is executed.\n\
1982 Note that the file \"%s\" is read automatically in this way\n\
1983 when GDB is started."), gdbinit
);
1984 c
= add_cmd ("source", class_support
, source_command
,
1985 source_help_text
, &cmdlist
);
1986 set_cmd_completer (c
, filename_completer
);