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 /* Chain containing all defined "maintenance check" subcommands. */
173 struct cmd_list_element
*maintenancechecklist
;
175 struct cmd_list_element
*setprintlist
;
177 struct cmd_list_element
*showprintlist
;
179 struct cmd_list_element
*setdebuglist
;
181 struct cmd_list_element
*showdebuglist
;
183 struct cmd_list_element
*setchecklist
;
185 struct cmd_list_element
*showchecklist
;
187 /* Command tracing state. */
189 int source_verbose
= 0;
190 int trace_commands
= 0;
192 /* 'script-extension' option support. */
194 static const char script_ext_off
[] = "off";
195 static const char script_ext_soft
[] = "soft";
196 static const char script_ext_strict
[] = "strict";
198 static const char *const script_ext_enums
[] = {
205 static const char *script_ext_mode
= script_ext_soft
;
207 /* Utility used everywhere when at least one argument is needed and
211 error_no_arg (const char *why
)
213 error (_("Argument required (%s)."), why
);
216 /* The "info" command is defined as a prefix, with allow_unknown = 0.
217 Therefore, its own definition is called only for "info" with no
221 info_command (char *arg
, int from_tty
)
223 printf_unfiltered (_("\"info\" must be followed by "
224 "the name of an info command.\n"));
225 help_list (infolist
, "info ", all_commands
, gdb_stdout
);
228 /* The "show" command with no arguments shows all the settings. */
231 show_command (char *arg
, int from_tty
)
233 cmd_show_list (showlist
, from_tty
, "");
236 /* Provide documentation on command or list given by COMMAND. FROM_TTY
240 help_command (char *command
, int from_tty
)
242 help_cmd (command
, gdb_stdout
);
246 /* Note: The "complete" command is used by Emacs to implement completion.
247 [Is that why this function writes output with *_unfiltered?] */
250 complete_command (char *arg_entry
, int from_tty
)
252 const char *arg
= arg_entry
;
256 if (max_completions
== 0)
258 /* Only print this for non-mi frontends. An MI frontend may not
259 be able to handle this. */
260 if (!current_uiout
->is_mi_like_p ())
262 printf_unfiltered (_("max-completions is zero,"
263 " completion is disabled.\n"));
271 completion_tracker tracker_handle_brkchars
;
272 completion_tracker tracker_handle_completions
;
273 completion_tracker
*tracker
;
275 int quote_char
= '\0';
280 word
= completion_find_completion_word (tracker_handle_brkchars
,
283 /* Completers that provide a custom word point in the
284 handle_brkchars phase also compute their completions then.
285 Completers that leave the completion word handling to readline
286 must be called twice. */
287 if (tracker_handle_brkchars
.use_custom_word_point ())
288 tracker
= &tracker_handle_brkchars
;
291 complete_line (tracker_handle_completions
, word
, arg
, strlen (arg
));
292 tracker
= &tracker_handle_completions
;
295 CATCH (ex
, RETURN_MASK_ALL
)
300 std::string
arg_prefix (arg
, word
- arg
);
302 completion_result result
303 = tracker
->build_completion_result (word
, word
- arg
, strlen (arg
));
305 if (result
.number_matches
!= 0)
307 if (result
.number_matches
== 1)
308 printf_unfiltered ("%s%s\n", arg_prefix
.c_str (), result
.match_list
[0]);
311 result
.sort_match_list ();
313 for (size_t i
= 0; i
< result
.number_matches
; i
++)
315 printf_unfiltered ("%s%s",
317 result
.match_list
[i
+ 1]);
319 printf_unfiltered ("%c", quote_char
);
320 printf_unfiltered ("\n");
324 if (result
.number_matches
== max_completions
)
326 /* ARG_PREFIX and WORD are included in the output so that emacs
327 will include the message in the output. */
328 printf_unfiltered (_("%s%s %s\n"),
329 arg_prefix
.c_str (), word
,
330 get_max_completions_reached_message ());
336 is_complete_command (struct cmd_list_element
*c
)
338 return cmd_cfunc_eq (c
, complete_command
);
342 show_version (char *args
, int from_tty
)
344 print_gdb_version (gdb_stdout
);
345 printf_filtered ("\n");
349 show_configuration (char *args
, int from_tty
)
351 print_gdb_configuration (gdb_stdout
);
354 /* Handle the quit command. */
357 quit_command (char *args
, int from_tty
)
361 /* An optional expression may be used to cause gdb to terminate with
362 the value of that expression. */
365 struct value
*val
= parse_and_eval (args
);
367 exit_code
= (int) value_as_long (val
);
370 if (!quit_confirm ())
371 error (_("Not confirmed."));
373 query_if_trace_running (from_tty
);
375 quit_force (args
? &exit_code
: NULL
, from_tty
);
379 pwd_command (char *args
, int from_tty
)
382 error (_("The \"pwd\" command does not take an argument: %s"), args
);
383 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
384 error (_("Error finding name of working directory: %s"),
385 safe_strerror (errno
));
387 if (strcmp (gdb_dirbuf
, current_directory
) != 0)
388 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
389 current_directory
, gdb_dirbuf
);
391 printf_unfiltered (_("Working directory %s.\n"), current_directory
);
395 cd_command (char *dir
, int from_tty
)
398 /* Found something other than leading repetitions of "/..". */
401 struct cleanup
*cleanup
;
403 /* If the new directory is absolute, repeat is a no-op; if relative,
404 repeat might be useful but is more likely to be a mistake. */
407 dir
= tilde_expand (dir
!= NULL
? dir
: "~");
408 cleanup
= make_cleanup (xfree
, dir
);
411 perror_with_name (dir
);
413 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
414 /* There's too much mess with DOSish names like "d:", "d:.",
415 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
416 simply get the canonicalized name of the current directory. */
417 dir
= getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
));
421 if (IS_DIR_SEPARATOR (dir
[len
- 1]))
423 /* Remove the trailing slash unless this is a root directory
424 (including a drive letter on non-Unix systems). */
425 if (!(len
== 1) /* "/" */
426 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
427 && !(len
== 3 && dir
[1] == ':') /* "d:/" */
433 dir
= savestring (dir
, len
);
434 if (IS_ABSOLUTE_PATH (dir
))
435 current_directory
= dir
;
438 if (IS_DIR_SEPARATOR (current_directory
[strlen (current_directory
) - 1]))
439 current_directory
= concat (current_directory
, dir
, (char *)NULL
);
441 current_directory
= concat (current_directory
, SLASH_STRING
,
446 /* Now simplify any occurrences of `.' and `..' in the pathname. */
449 for (p
= current_directory
; *p
;)
451 if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.'
452 && (p
[2] == 0 || IS_DIR_SEPARATOR (p
[2])))
453 memmove (p
, p
+ 2, strlen (p
+ 2) + 1);
454 else if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.' && p
[2] == '.'
455 && (p
[3] == 0 || IS_DIR_SEPARATOR (p
[3])))
459 /* Search backwards for the directory just before the "/.."
460 and obliterate it and the "/..". */
463 while (q
!= current_directory
&& !IS_DIR_SEPARATOR (q
[-1]))
466 if (q
== current_directory
)
467 /* current_directory is
468 a relative pathname ("can't happen"--leave it alone). */
472 memmove (q
- 1, p
+ 3, strlen (p
+ 3) + 1);
477 /* We are dealing with leading repetitions of "/..", for
478 example "/../..", which is the Mach super-root. */
488 forget_cached_source_info ();
491 pwd_command ((char *) 0, 1);
493 do_cleanups (cleanup
);
496 /* Show the current value of the 'script-extension' option. */
499 show_script_ext_mode (struct ui_file
*file
, int from_tty
,
500 struct cmd_list_element
*c
, const char *value
)
502 fprintf_filtered (file
,
503 _("Script filename extension recognition is \"%s\".\n"),
507 /* Try to open SCRIPT_FILE.
508 If successful, the full path name is stored in *FULL_PATHP,
509 and the stream is returned.
510 If not successful, return NULL; errno is set for the last file
513 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
514 search for it in the source search path. */
516 gdb::optional
<open_script
>
517 find_and_open_script (const char *script_file
, int search_path
)
521 struct cleanup
*old_cleanups
;
522 int search_flags
= OPF_TRY_CWD_FIRST
| OPF_RETURN_REALPATH
;
523 gdb::optional
<open_script
> opened
;
525 file
= tilde_expand (script_file
);
526 old_cleanups
= make_cleanup (xfree
, file
);
529 search_flags
|= OPF_SEARCH_IN_PATH
;
531 /* Search for and open 'file' on the search path used for source
532 files. Put the full location in *FULL_PATHP. */
534 fd
= openp (source_path
, search_flags
,
535 file
, O_RDONLY
, &temp_path
);
536 gdb::unique_xmalloc_ptr
<char> full_path (temp_path
);
540 int save_errno
= errno
;
541 do_cleanups (old_cleanups
);
546 do_cleanups (old_cleanups
);
548 FILE *result
= fdopen (fd
, FOPEN_RT
);
551 int save_errno
= errno
;
557 opened
.emplace (gdb_file_up (result
), std::move (full_path
));
562 /* Load script FILE, which has already been opened as STREAM.
563 FILE_TO_OPEN is the form of FILE to use if one needs to open the file.
564 This is provided as FILE may have been found via the source search path.
565 An important thing to note here is that FILE may be a symlink to a file
566 with a different or non-existing suffix, and thus one cannot infer the
567 extension language from FILE_TO_OPEN. */
570 source_script_from_stream (FILE *stream
, const char *file
,
571 const char *file_to_open
)
573 if (script_ext_mode
!= script_ext_off
)
575 const struct extension_language_defn
*extlang
576 = get_ext_lang_of_file (file
);
580 if (ext_lang_present_p (extlang
))
582 script_sourcer_func
*sourcer
583 = ext_lang_script_sourcer (extlang
);
585 gdb_assert (sourcer
!= NULL
);
586 sourcer (extlang
, stream
, file_to_open
);
589 else if (script_ext_mode
== script_ext_soft
)
591 /* Assume the file is a gdb script.
592 This is handled below. */
595 throw_ext_lang_unsupported (extlang
);
599 script_from_file (stream
, file
);
602 /* Worker to perform the "source" command.
604 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
605 search for it in the source search path. */
608 source_script_with_search (const char *file
, int from_tty
, int search_path
)
611 if (file
== NULL
|| *file
== 0)
612 error (_("source command requires file name of file to source."));
614 gdb::optional
<open_script
> opened
= find_and_open_script (file
, search_path
);
617 /* The script wasn't found, or was otherwise inaccessible.
618 If the source command was invoked interactively, throw an
619 error. Otherwise (e.g. if it was invoked by a script),
620 just emit a warning, rather than cause an error. */
622 perror_with_name (file
);
625 perror_warning_with_name (file
);
630 /* The python support reopens the file, so we need to pass full_path here
631 in case the file was found on the search path. It's useful to do this
632 anyway so that error messages show the actual file used. But only do
633 this if we (may have) used search_path, as printing the full path in
634 errors for the non-search case can be more noise than signal. */
635 source_script_from_stream (opened
->stream
.get (), file
,
636 search_path
? opened
->full_path
.get () : file
);
639 /* Wrapper around source_script_with_search to export it to main.c
640 for use in loading .gdbinit scripts. */
643 source_script (const char *file
, int from_tty
)
645 source_script_with_search (file
, from_tty
, 0);
649 source_command (char *args
, int from_tty
)
652 int *old_source_verbose
= XNEW (int);
655 scoped_restore save_source_verbose
= make_scoped_restore (&source_verbose
);
657 /* -v causes the source command to run in verbose mode.
658 -s causes the file to be searched in the source search path,
659 even if the file name contains a '/'.
660 We still have to be able to handle filenames with spaces in a
661 backward compatible way, so buildargv is not appropriate. */
665 while (args
[0] != '\0')
667 /* Make sure leading white space does not break the
669 args
= skip_spaces (args
);
674 if (args
[1] == 'v' && isspace (args
[2]))
678 /* Skip passed -v. */
681 else if (args
[1] == 's' && isspace (args
[2]))
685 /* Skip passed -s. */
692 file
= skip_spaces (args
);
695 source_script_with_search (file
, from_tty
, search_path
);
700 echo_command (char *text
, int from_tty
)
702 const char *p
= text
;
706 while ((c
= *p
++) != '\0')
710 /* \ at end of argument is used after spaces
711 so they won't be lost. */
715 c
= parse_escape (get_current_arch (), &p
);
717 printf_filtered ("%c", c
);
720 printf_filtered ("%c", c
);
723 /* Force this output to appear now. */
725 gdb_flush (gdb_stdout
);
729 shell_escape (const char *arg
, int from_tty
)
731 #if defined(CANT_FORK) || \
732 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
733 /* If ARG is NULL, they want an inferior shell, but `system' just
734 reports if the shell is available when passed a NULL arg. */
735 int rc
= system (arg
? arg
: "");
738 arg
= "inferior shell";
742 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", arg
,
743 safe_strerror (errno
));
744 gdb_flush (gdb_stderr
);
748 fprintf_unfiltered (gdb_stderr
, "%s exited with status %d\n", arg
, rc
);
749 gdb_flush (gdb_stderr
);
752 /* Make sure to return to the directory GDB thinks it is, in case
753 the shell command we just ran changed it. */
754 chdir (current_directory
);
756 #else /* Can fork. */
759 if ((pid
= vfork ()) == 0)
761 const char *p
, *user_shell
;
765 if ((user_shell
= (char *) getenv ("SHELL")) == NULL
)
766 user_shell
= "/bin/sh";
768 /* Get the name of the shell for arg0. */
769 p
= lbasename (user_shell
);
772 execl (user_shell
, p
, (char *) 0);
774 execl (user_shell
, p
, "-c", arg
, (char *) 0);
776 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", user_shell
,
777 safe_strerror (errno
));
778 gdb_flush (gdb_stderr
);
783 waitpid (pid
, &status
, 0);
785 error (_("Fork failed"));
786 #endif /* Can fork. */
789 /* Implementation of the "shell" command. */
792 shell_command (char *arg
, int from_tty
)
794 shell_escape (arg
, from_tty
);
798 edit_command (char *arg
, int from_tty
)
800 struct symtabs_and_lines sals
;
801 struct symtab_and_line sal
;
807 /* Pull in the current default source line if necessary. */
810 set_default_source_symtab_and_line ();
811 sal
= get_current_source_symtab_and_line ();
814 /* Bare "edit" edits file with present line. */
819 error (_("No default source file yet."));
820 sal
.line
+= get_lines_to_list () / 2;
826 /* Now should only be one argument -- decode it in SAL. */
828 event_location_up location
= string_to_event_location (&arg1
,
830 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
841 ambiguous_line_spec (&sals
);
850 error (_("Junk at end of line specification."));
852 /* If line was specified by address, first print exactly which
853 line, and which file. In this case, sal.symtab == 0 means
854 address is outside of all known source files, not that user
855 failed to give a filename. */
858 struct gdbarch
*gdbarch
;
861 error (_("No source file for address %s."),
862 paddress (get_current_arch (), sal
.pc
));
864 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
865 sym
= find_pc_function (sal
.pc
);
867 printf_filtered ("%s is in %s (%s:%d).\n",
868 paddress (gdbarch
, sal
.pc
),
869 SYMBOL_PRINT_NAME (sym
),
870 symtab_to_filename_for_display (sal
.symtab
),
873 printf_filtered ("%s is at %s:%d.\n",
874 paddress (gdbarch
, sal
.pc
),
875 symtab_to_filename_for_display (sal
.symtab
),
879 /* If what was given does not imply a symtab, it must be an
880 undebuggable symbol which means no source code. */
883 error (_("No line number known for %s."), arg
);
886 if ((editor
= (char *) getenv ("EDITOR")) == NULL
)
889 fn
= symtab_to_fullname (sal
.symtab
);
891 /* Quote the file name, in case it has whitespace or other special
893 p
= xstrprintf ("%s +%d \"%s\"", editor
, sal
.line
, fn
);
894 shell_escape (p
, from_tty
);
899 list_command (char *arg
, int from_tty
)
901 struct symtabs_and_lines sals
, sals_end
;
902 struct symtab_and_line sal
= { 0 };
903 struct symtab_and_line sal_end
= { 0 };
904 struct symtab_and_line cursal
= { 0 };
913 /* Pull in the current default source line if necessary. */
914 if (arg
== NULL
|| ((arg
[0] == '+' || arg
[0] == '-') && arg
[1] == '\0'))
916 set_default_source_symtab_and_line ();
917 cursal
= get_current_source_symtab_and_line ();
919 /* If this is the first "list" since we've set the current
920 source line, center the listing around that line. */
921 if (get_first_line_listed () == 0)
925 first
= std::max (cursal
.line
- get_lines_to_list () / 2, 1);
927 /* A small special case --- if listing backwards, and we
928 should list only one line, list the preceding line,
929 instead of the exact line we've just shown after e.g.,
930 stopping for a breakpoint. */
931 if (arg
!= NULL
&& arg
[0] == '-'
932 && get_lines_to_list () == 1 && first
> 1)
935 print_source_lines (cursal
.symtab
, first
,
936 first
+ get_lines_to_list (), 0);
939 /* "l" or "l +" lists next ten lines. */
940 else if (arg
== NULL
|| arg
[0] == '+')
941 print_source_lines (cursal
.symtab
, cursal
.line
,
942 cursal
.line
+ get_lines_to_list (), 0);
944 /* "l -" lists previous ten lines, the ones before the ten just
946 else if (arg
[0] == '-')
948 if (get_first_line_listed () == 1)
949 error (_("Already at the start of %s."),
950 symtab_to_filename_for_display (cursal
.symtab
));
951 print_source_lines (cursal
.symtab
,
952 std::max (get_first_line_listed ()
953 - get_lines_to_list (), 1),
954 get_first_line_listed (), 0);
960 /* Now if there is only one argument, decode it in SAL
962 If there are two arguments, decode them in SAL and SAL_END
963 and clear NO_END; however, if one of the arguments is blank,
964 set DUMMY_BEG or DUMMY_END to record that fact. */
966 if (!have_full_symbols () && !have_partial_symbols ())
967 error (_("No symbol table is loaded. Use the \"file\" command."));
974 event_location_up location
= string_to_event_location (&arg1
,
976 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
987 ambiguous_line_spec (&sals
);
996 /* Record whether the BEG arg is all digits. */
998 for (p
= arg
; p
!= arg1
&& *p
>= '0' && *p
<= '9'; p
++);
999 linenum_beg
= (p
== arg1
);
1001 while (*arg1
== ' ' || *arg1
== '\t')
1007 while (*arg1
== ' ' || *arg1
== '\t')
1013 event_location_up location
1014 = string_to_event_location (&arg1
, current_language
);
1016 sals_end
= decode_line_1 (location
.get (),
1017 DECODE_LINE_LIST_MODE
, NULL
, NULL
, 0);
1019 sals_end
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
1020 NULL
, sal
.symtab
, sal
.line
);
1022 filter_sals (&sals_end
);
1023 if (sals_end
.nelts
== 0)
1025 if (sals_end
.nelts
> 1)
1027 ambiguous_line_spec (&sals_end
);
1028 xfree (sals_end
.sals
);
1031 sal_end
= sals_end
.sals
[0];
1032 xfree (sals_end
.sals
);
1037 error (_("Junk at end of line specification."));
1039 if (!no_end
&& !dummy_beg
&& !dummy_end
1040 && sal
.symtab
!= sal_end
.symtab
)
1041 error (_("Specified start and end are in different files."));
1042 if (dummy_beg
&& dummy_end
)
1043 error (_("Two empty args do not say what lines to list."));
1045 /* If line was specified by address,
1046 first print exactly which line, and which file.
1048 In this case, sal.symtab == 0 means address is outside of all
1049 known source files, not that user failed to give a filename. */
1052 struct gdbarch
*gdbarch
;
1054 if (sal
.symtab
== 0)
1055 error (_("No source file for address %s."),
1056 paddress (get_current_arch (), sal
.pc
));
1058 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
1059 sym
= find_pc_function (sal
.pc
);
1061 printf_filtered ("%s is in %s (%s:%d).\n",
1062 paddress (gdbarch
, sal
.pc
),
1063 SYMBOL_PRINT_NAME (sym
),
1064 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1066 printf_filtered ("%s is at %s:%d.\n",
1067 paddress (gdbarch
, sal
.pc
),
1068 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1071 /* If line was not specified by just a line number, and it does not
1072 imply a symtab, it must be an undebuggable symbol which means no
1075 if (!linenum_beg
&& sal
.symtab
== 0)
1076 error (_("No line number known for %s."), arg
);
1078 /* If this command is repeated with RET,
1079 turn it into the no-arg variant. */
1084 if (dummy_beg
&& sal_end
.symtab
== 0)
1085 error (_("No default source file yet. Do \"help list\"."));
1087 print_source_lines (sal_end
.symtab
,
1088 std::max (sal_end
.line
- (get_lines_to_list () - 1), 1),
1089 sal_end
.line
+ 1, 0);
1090 else if (sal
.symtab
== 0)
1091 error (_("No default source file yet. Do \"help list\"."));
1094 int first_line
= sal
.line
- get_lines_to_list () / 2;
1096 if (first_line
< 1) first_line
= 1;
1098 print_source_lines (sal
.symtab
,
1100 first_line
+ get_lines_to_list (),
1104 print_source_lines (sal
.symtab
, sal
.line
,
1106 ? sal
.line
+ get_lines_to_list ()
1107 : sal_end
.line
+ 1),
1111 /* Subroutine of disassemble_command to simplify it.
1112 Perform the disassembly.
1113 NAME is the name of the function if known, or NULL.
1114 [LOW,HIGH) are the range of addresses to disassemble.
1115 MIXED is non-zero to print source with the assembler. */
1118 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
1119 CORE_ADDR low
, CORE_ADDR high
, int flags
)
1122 if (!tui_is_window_visible (DISASSEM_WIN
))
1125 printf_filtered ("Dump of assembler code ");
1127 printf_filtered ("for function %s:\n", name
);
1129 printf_filtered ("from %s to %s:\n",
1130 paddress (gdbarch
, low
), paddress (gdbarch
, high
));
1132 /* Dump the specified range. */
1133 gdb_disassembly (gdbarch
, current_uiout
, flags
, -1, low
, high
);
1135 printf_filtered ("End of assembler dump.\n");
1136 gdb_flush (gdb_stdout
);
1141 tui_show_assembly (gdbarch
, low
);
1146 /* Subroutine of disassemble_command to simplify it.
1147 Print a disassembly of the current function according to FLAGS. */
1150 disassemble_current_function (int flags
)
1152 struct frame_info
*frame
;
1153 struct gdbarch
*gdbarch
;
1154 CORE_ADDR low
, high
, pc
;
1157 frame
= get_selected_frame (_("No frame selected."));
1158 gdbarch
= get_frame_arch (frame
);
1159 pc
= get_frame_address_in_block (frame
);
1160 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1161 error (_("No function contains program counter for selected frame."));
1163 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1166 /* FIXME: cagney/2004-02-07: This should be an observer. */
1167 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1169 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1171 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1174 /* Dump a specified section of assembly code.
1178 - dump the assembly code for the function of the current pc
1179 disassemble [/mrs] addr
1180 - dump the assembly code for the function at ADDR
1181 disassemble [/mrs] low,high
1182 disassemble [/mrs] low,+length
1183 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1185 A /m modifier will include source code with the assembly in a
1186 "source centric" view. This view lists only the file of the first insn,
1187 even if other source files are involved (e.g., inlined functions), and
1188 the output is in source order, even with optimized code. This view is
1189 considered deprecated as it hasn't been useful in practice.
1191 A /r modifier will include raw instructions in hex with the assembly.
1193 A /s modifier will include source code with the assembly, like /m, with
1194 two important differences:
1195 1) The output is still in pc address order.
1196 2) File names and contents for all relevant source files are displayed. */
1199 disassemble_command (char *arg
, int from_tty
)
1201 struct gdbarch
*gdbarch
= get_current_arch ();
1202 CORE_ADDR low
, high
;
1217 error (_("Missing modifier."));
1219 while (*p
&& ! isspace (*p
))
1224 flags
|= DISASSEMBLY_SOURCE_DEPRECATED
;
1227 flags
|= DISASSEMBLY_RAW_INSN
;
1230 flags
|= DISASSEMBLY_SOURCE
;
1233 error (_("Invalid disassembly modifier."));
1237 p
= skip_spaces_const (p
);
1240 if ((flags
& (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1241 == (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1242 error (_("Cannot specify both /m and /s."));
1246 flags
|= DISASSEMBLY_OMIT_FNAME
;
1247 disassemble_current_function (flags
);
1251 pc
= value_as_address (parse_to_comma_and_eval (&p
));
1257 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1258 error (_("No function contains specified address."));
1260 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1263 /* FIXME: cagney/2004-02-07: This should be an observer. */
1264 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1266 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1267 flags
|= DISASSEMBLY_OMIT_FNAME
;
1271 /* Two arguments. */
1274 p
= skip_spaces_const (p
);
1280 high
= parse_and_eval_address (p
);
1285 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1289 make_command (char *arg
, int from_tty
)
1292 shell_escape ("make", from_tty
);
1295 std::string cmd
= std::string ("make ") + arg
;
1297 shell_escape (cmd
.c_str (), from_tty
);
1302 show_user (char *args
, int from_tty
)
1304 struct cmd_list_element
*c
;
1305 extern struct cmd_list_element
*cmdlist
;
1309 const char *comname
= args
;
1311 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1312 if (!cli_user_command_p (c
))
1313 error (_("Not a user command."));
1314 show_user_1 (c
, "", args
, gdb_stdout
);
1318 for (c
= cmdlist
; c
; c
= c
->next
)
1320 if (cli_user_command_p (c
) || c
->prefixlist
!= NULL
)
1321 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1326 /* Search through names of commands and documentations for a certain
1327 regular expression. */
1330 apropos_command (char *searchstr
, int from_tty
)
1332 if (searchstr
== NULL
)
1333 error (_("REGEXP string is empty"));
1335 compiled_regex
pattern (searchstr
, REG_ICASE
,
1336 _("Error in regular expression"));
1338 apropos_cmd (gdb_stdout
, cmdlist
, pattern
, "");
1341 /* Subroutine of alias_command to simplify it.
1342 Return the first N elements of ARGV flattened back to a string
1343 with a space separating each element.
1344 ARGV may not be NULL.
1345 This does not take care of quoting elements in case they contain spaces
1349 argv_to_string (char **argv
, int n
)
1354 gdb_assert (argv
!= NULL
);
1355 gdb_assert (n
>= 0 && n
<= countargv (argv
));
1357 for (i
= 0; i
< n
; ++i
)
1367 /* Subroutine of alias_command to simplify it.
1368 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1371 valid_command_p (const char *command
)
1373 struct cmd_list_element
*c
;
1375 c
= lookup_cmd_1 (& command
, cmdlist
, NULL
, 1);
1377 if (c
== NULL
|| c
== (struct cmd_list_element
*) -1)
1380 /* This is the slightly tricky part.
1381 lookup_cmd_1 will return a pointer to the last part of COMMAND
1382 to match, leaving COMMAND pointing at the remainder. */
1383 while (*command
== ' ' || *command
== '\t')
1385 return *command
== '\0';
1388 /* Called when "alias" was incorrectly used. */
1391 alias_usage_error (void)
1393 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1396 /* Make an alias of an existing command. */
1399 alias_command (char *args
, int from_tty
)
1401 int i
, alias_argc
, command_argc
;
1402 int abbrev_flag
= 0;
1403 char *args2
, *equals
;
1404 const char *alias
, *command
;
1405 char **alias_argv
, **command_argv
;
1406 struct cleanup
*cleanup
;
1408 if (args
== NULL
|| strchr (args
, '=') == NULL
)
1409 alias_usage_error ();
1411 args2
= xstrdup (args
);
1412 cleanup
= make_cleanup (xfree
, args2
);
1413 equals
= strchr (args2
, '=');
1415 alias_argv
= gdb_buildargv (args2
);
1416 make_cleanup_freeargv (alias_argv
);
1417 command_argv
= gdb_buildargv (equals
+ 1);
1418 make_cleanup_freeargv (command_argv
);
1420 for (i
= 0; alias_argv
[i
] != NULL
; )
1422 if (strcmp (alias_argv
[i
], "-a") == 0)
1427 else if (strcmp (alias_argv
[i
], "--") == 0)
1436 if (alias_argv
[0] == NULL
|| command_argv
[0] == NULL
1437 || *alias_argv
[0] == '\0' || *command_argv
[0] == '\0')
1438 alias_usage_error ();
1440 for (i
= 0; alias_argv
[i
] != NULL
; ++i
)
1442 if (! valid_user_defined_cmd_name_p (alias_argv
[i
]))
1445 error (_("Invalid command name: %s"), alias_argv
[i
]);
1447 error (_("Invalid command element name: %s"), alias_argv
[i
]);
1451 alias_argc
= countargv (alias_argv
);
1452 command_argc
= countargv (command_argv
);
1454 /* COMMAND must exist.
1455 Reconstruct the command to remove any extraneous spaces,
1456 for better error messages. */
1457 std::string
command_string (argv_to_string (command_argv
, command_argc
));
1458 command
= command_string
.c_str ();
1459 if (! valid_command_p (command
))
1460 error (_("Invalid command to alias to: %s"), command
);
1462 /* ALIAS must not exist. */
1463 std::string
alias_string (argv_to_string (alias_argv
, alias_argc
));
1464 alias
= alias_string
.c_str ();
1465 if (valid_command_p (alias
))
1466 error (_("Alias already exists: %s"), alias
);
1468 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1469 Example: alias spe = set print elements
1471 Otherwise ALIAS and COMMAND must have the same number of words,
1472 and every word except the last must match; and the last word of
1473 ALIAS is made an alias of the last word of COMMAND.
1474 Example: alias set print elms = set pr elem
1475 Note that unambiguous abbreviations are allowed. */
1477 if (alias_argc
== 1)
1479 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1480 add_com_alias (xstrdup (alias_argv
[0]), command
, class_alias
,
1485 const char *alias_prefix
, *command_prefix
;
1486 struct cmd_list_element
*c_alias
, *c_command
;
1488 if (alias_argc
!= command_argc
)
1489 error (_("Mismatched command length between ALIAS and COMMAND."));
1491 /* Create copies of ALIAS and COMMAND without the last word,
1492 and use that to verify the leading elements match. */
1493 std::string
alias_prefix_string (argv_to_string (alias_argv
,
1495 std::string
command_prefix_string (argv_to_string (alias_argv
,
1497 alias_prefix
= alias_prefix_string
.c_str ();
1498 command_prefix
= command_prefix_string
.c_str ();
1500 c_command
= lookup_cmd_1 (& command_prefix
, cmdlist
, NULL
, 1);
1501 /* We've already tried to look up COMMAND. */
1502 gdb_assert (c_command
!= NULL
1503 && c_command
!= (struct cmd_list_element
*) -1);
1504 gdb_assert (c_command
->prefixlist
!= NULL
);
1505 c_alias
= lookup_cmd_1 (& alias_prefix
, cmdlist
, NULL
, 1);
1506 if (c_alias
!= c_command
)
1507 error (_("ALIAS and COMMAND prefixes do not match."));
1509 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1510 add_alias_cmd (xstrdup (alias_argv
[alias_argc
- 1]),
1511 command_argv
[command_argc
- 1],
1512 class_alias
, abbrev_flag
, c_command
->prefixlist
);
1515 do_cleanups (cleanup
);
1518 /* Print a list of files and line numbers which a user may choose from
1519 in order to list a function which was specified ambiguously (as
1520 with `list classname::overloadedfuncname', for example). The
1521 vector in SALS provides the filenames and line numbers. */
1524 ambiguous_line_spec (struct symtabs_and_lines
*sals
)
1528 for (i
= 0; i
< sals
->nelts
; ++i
)
1529 printf_filtered (_("file: \"%s\", line number: %d\n"),
1530 symtab_to_filename_for_display (sals
->sals
[i
].symtab
),
1531 sals
->sals
[i
].line
);
1534 /* Sort function for filter_sals. */
1537 compare_symtabs (const void *a
, const void *b
)
1539 const struct symtab_and_line
*sala
= (const struct symtab_and_line
*) a
;
1540 const struct symtab_and_line
*salb
= (const struct symtab_and_line
*) b
;
1541 const char *dira
= SYMTAB_DIRNAME (sala
->symtab
);
1542 const char *dirb
= SYMTAB_DIRNAME (salb
->symtab
);
1550 else if (dirb
== NULL
)
1557 r
= filename_cmp (dira
, dirb
);
1562 r
= filename_cmp (sala
->symtab
->filename
, salb
->symtab
->filename
);
1566 if (sala
->line
< salb
->line
)
1568 return sala
->line
== salb
->line
? 0 : 1;
1571 /* Remove any SALs that do not match the current program space, or
1572 which appear to be "file:line" duplicates. */
1575 filter_sals (struct symtabs_and_lines
*sals
)
1580 for (i
= 0; i
< sals
->nelts
; ++i
)
1582 if (sals
->sals
[i
].pspace
== current_program_space
1583 && sals
->sals
[i
].symtab
!= NULL
)
1585 sals
->sals
[out
] = sals
->sals
[i
];
1591 qsort (sals
->sals
, sals
->nelts
, sizeof (struct symtab_and_line
),
1596 for (i
= 1; i
< sals
->nelts
; ++i
)
1598 if (compare_symtabs (&sals
->sals
[prev
], &sals
->sals
[i
]))
1600 /* Symtabs differ. */
1601 sals
->sals
[out
] = sals
->sals
[i
];
1607 if (sals
->nelts
== 0)
1617 set_debug (char *arg
, int from_tty
)
1619 printf_unfiltered (_("\"set debug\" must be followed by "
1620 "the name of a debug subcommand.\n"));
1621 help_list (setdebuglist
, "set debug ", all_commands
, gdb_stdout
);
1625 show_debug (char *args
, int from_tty
)
1627 cmd_show_list (showdebuglist
, from_tty
, "");
1631 init_cmd_lists (void)
1633 max_user_call_depth
= 1024;
1637 show_info_verbose (struct ui_file
*file
, int from_tty
,
1638 struct cmd_list_element
*c
,
1642 fprintf_filtered (file
,
1643 _("Verbose printing of informational messages is %s.\n"),
1646 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1650 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1651 struct cmd_list_element
*c
, const char *value
)
1653 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1658 show_remote_debug (struct ui_file
*file
, int from_tty
,
1659 struct cmd_list_element
*c
, const char *value
)
1661 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1666 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1667 struct cmd_list_element
*c
, const char *value
)
1669 fprintf_filtered (file
,
1670 _("Timeout limit to wait for target to respond is %s.\n"),
1675 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1676 struct cmd_list_element
*c
, const char *value
)
1678 fprintf_filtered (file
,
1679 _("The max call depth for user-defined commands is %s.\n"),
1685 initialize_file_ftype _initialize_cli_cmds
;
1688 _initialize_cli_cmds (void)
1690 struct cmd_list_element
*c
;
1692 /* Define the classes of commands.
1693 They will appear in the help list in alphabetical order. */
1695 add_cmd ("internals", class_maintenance
, NULL
, _("\
1696 Maintenance commands.\n\
1697 Some gdb commands are provided just for use by gdb maintainers.\n\
1698 These commands are subject to frequent change, and may not be as\n\
1699 well documented as user commands."),
1701 add_cmd ("obscure", class_obscure
, NULL
, _("Obscure features."), &cmdlist
);
1702 add_cmd ("aliases", class_alias
, NULL
,
1703 _("Aliases of other commands."), &cmdlist
);
1704 add_cmd ("user-defined", class_user
, NULL
, _("\
1705 User-defined commands.\n\
1706 The commands in this class are those defined by the user.\n\
1707 Use the \"define\" command to define a command."), &cmdlist
);
1708 add_cmd ("support", class_support
, NULL
, _("Support facilities."), &cmdlist
);
1710 add_cmd ("status", class_info
, NULL
, _("Status inquiries."), &cmdlist
);
1711 add_cmd ("files", class_files
, NULL
, _("Specifying and examining files."),
1713 add_cmd ("breakpoints", class_breakpoint
, NULL
,
1714 _("Making program stop at certain points."), &cmdlist
);
1715 add_cmd ("data", class_vars
, NULL
, _("Examining data."), &cmdlist
);
1716 add_cmd ("stack", class_stack
, NULL
, _("\
1717 Examining the stack.\n\
1718 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1719 counting from zero for the innermost (currently executing) frame.\n\n\
1720 At any time gdb identifies one frame as the \"selected\" frame.\n\
1721 Variable lookups are done with respect to the selected frame.\n\
1722 When the program being debugged stops, gdb selects the innermost frame.\n\
1723 The commands below can be used to select other frames by number or address."),
1725 add_cmd ("running", class_run
, NULL
, _("Running the program."), &cmdlist
);
1727 /* Define general commands. */
1729 add_com ("pwd", class_files
, pwd_command
, _("\
1730 Print working directory. This is used for your program as well."));
1732 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1733 Set working directory to DIR for debugger and program being debugged.\n\
1734 The change does not take effect for the program being debugged\n\
1735 until the next time it is started."), &cmdlist
);
1736 set_cmd_completer (c
, filename_completer
);
1738 add_com ("echo", class_support
, echo_command
, _("\
1739 Print a constant string. Give string as argument.\n\
1740 C escape sequences may be used in the argument.\n\
1741 No newline is added at the end of the argument;\n\
1742 use \"\\n\" if you want a newline to be printed.\n\
1743 Since leading and trailing whitespace are ignored in command arguments,\n\
1744 if you want to print some you must use \"\\\" before leading whitespace\n\
1745 to be printed or after trailing whitespace."));
1747 add_setshow_enum_cmd ("script-extension", class_support
,
1748 script_ext_enums
, &script_ext_mode
, _("\
1749 Set mode for script filename extension recognition."), _("\
1750 Show mode for script filename extension recognition."), _("\
1751 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1752 soft == evaluate script according to filename extension, fallback to GDB script"
1754 strict == evaluate script according to filename extension, error if not supported"
1757 show_script_ext_mode
,
1758 &setlist
, &showlist
);
1760 add_com ("quit", class_support
, quit_command
, _("\
1762 Usage: quit [EXPR]\n\
1763 The optional expression EXPR, if present, is evaluated and the result\n\
1764 used as GDB's exit code. The default is zero."));
1765 c
= add_com ("help", class_support
, help_command
,
1766 _("Print list of commands."));
1767 set_cmd_completer (c
, command_completer
);
1768 add_com_alias ("q", "quit", class_support
, 1);
1769 add_com_alias ("h", "help", class_support
, 1);
1771 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1772 Set verbosity."), _("\
1773 Show verbosity."), NULL
,
1776 &setlist
, &showlist
);
1778 add_prefix_cmd ("history", class_support
, set_history
,
1779 _("Generic command for setting command history parameters."),
1780 &sethistlist
, "set history ", 0, &setlist
);
1781 add_prefix_cmd ("history", class_support
, show_history
,
1782 _("Generic command for showing command history parameters."),
1783 &showhistlist
, "show history ", 0, &showlist
);
1785 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1786 Set history expansion on command input."), _("\
1787 Show history expansion on command input."), _("\
1788 Without an argument, history expansion is enabled."),
1790 show_history_expansion_p
,
1791 &sethistlist
, &showhistlist
);
1793 add_prefix_cmd ("info", class_info
, info_command
, _("\
1794 Generic command for showing things about the program being debugged."),
1795 &infolist
, "info ", 0, &cmdlist
);
1796 add_com_alias ("i", "info", class_info
, 1);
1797 add_com_alias ("inf", "info", class_info
, 1);
1799 add_com ("complete", class_obscure
, complete_command
,
1800 _("List the completions for the rest of the line as a command."));
1802 add_prefix_cmd ("show", class_info
, show_command
, _("\
1803 Generic command for showing things about the debugger."),
1804 &showlist
, "show ", 0, &cmdlist
);
1805 /* Another way to get at the same thing. */
1806 add_info ("set", show_command
, _("Show all GDB settings."));
1808 add_cmd ("commands", no_set_class
, show_commands
, _("\
1809 Show the history of commands you typed.\n\
1810 You can supply a command number to start with, or a `+' to start after\n\
1811 the previous command number shown."),
1814 add_cmd ("version", no_set_class
, show_version
,
1815 _("Show what version of GDB this is."), &showlist
);
1817 add_cmd ("configuration", no_set_class
, show_configuration
,
1818 _("Show how GDB was configured at build time."), &showlist
);
1820 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1821 Set debugging of remote protocol."), _("\
1822 Show debugging of remote protocol."), _("\
1823 When enabled, each packet sent or received with the remote target\n\
1827 &setdebuglist
, &showdebuglist
);
1829 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class
,
1830 &remote_timeout
, _("\
1831 Set timeout limit to wait for target to respond."), _("\
1832 Show timeout limit to wait for target to respond."), _("\
1833 This value is used to set the time limit for gdb to wait for a response\n\
1836 show_remote_timeout
,
1837 &setlist
, &showlist
);
1839 add_prefix_cmd ("debug", no_class
, set_debug
,
1840 _("Generic command for setting gdb debugging flags"),
1841 &setdebuglist
, "set debug ", 0, &setlist
);
1843 add_prefix_cmd ("debug", no_class
, show_debug
,
1844 _("Generic command for showing gdb debugging flags"),
1845 &showdebuglist
, "show debug ", 0, &showlist
);
1847 c
= add_com ("shell", class_support
, shell_command
, _("\
1848 Execute the rest of the line as a shell command.\n\
1849 With no arguments, run an inferior shell."));
1850 set_cmd_completer (c
, filename_completer
);
1852 c
= add_com ("edit", class_files
, edit_command
, _("\
1853 Edit specified file or function.\n\
1854 With no argument, edits file containing most recent line listed.\n\
1855 Editing targets can be specified in these ways:\n\
1856 FILE:LINENUM, to edit at that line in that file,\n\
1857 FUNCTION, to edit at the beginning of that function,\n\
1858 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1859 *ADDRESS, to edit at the line containing that address.\n\
1860 Uses EDITOR environment variable contents as editor (or ex as default)."));
1862 c
->completer
= location_completer
;
1864 add_com ("list", class_files
, list_command
, _("\
1865 List specified function or line.\n\
1866 With no argument, lists ten more lines after or around previous listing.\n\
1867 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1868 One argument specifies a line, and ten lines are listed around that line.\n\
1869 Two arguments with comma between specify starting and ending lines to list.\n\
1870 Lines can be specified in these ways:\n\
1871 LINENUM, to list around that line in current file,\n\
1872 FILE:LINENUM, to list around that line in that file,\n\
1873 FUNCTION, to list around beginning of that function,\n\
1874 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1875 *ADDRESS, to list around the line containing that address.\n\
1876 With two args, if one is empty, it stands for ten lines away from\n\
1879 By default, when a single location is given, display ten lines.\n\
1880 This can be changed using \"set listsize\", and the current value\n\
1881 can be shown using \"show listsize\"."));
1883 add_com_alias ("l", "list", class_files
, 1);
1886 add_com_alias ("file", "list", class_files
, 1);
1888 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1889 Disassemble a specified section of memory.\n\
1890 Default is the function surrounding the pc of the selected frame.\n\
1892 With a /m modifier, source lines are included (if available).\n\
1893 This view is \"source centric\": the output is in source line order,\n\
1894 regardless of any optimization that is present. Only the main source file\n\
1895 is displayed, not those of, e.g., any inlined functions.\n\
1896 This modifier hasn't proved useful in practice and is deprecated\n\
1899 With a /s modifier, source lines are included (if available).\n\
1900 This differs from /m in two important respects:\n\
1901 - the output is still in pc address order, and\n\
1902 - file names and contents for all relevant source files are displayed.\n\
1904 With a /r modifier, raw instructions in hex are included.\n\
1906 With a single argument, the function surrounding that address is dumped.\n\
1907 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1908 in the form of \"start,end\", or \"start,+length\".\n\
1910 Note that the address is interpreted as an expression, not as a location\n\
1911 like in the \"break\" command.\n\
1912 So, for example, if you want to disassemble function bar in file foo.c\n\
1913 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1914 set_cmd_completer (c
, location_completer
);
1916 add_com_alias ("!", "shell", class_support
, 0);
1918 c
= add_com ("make", class_support
, make_command
, _("\
1919 Run the ``make'' program using the rest of the line as arguments."));
1920 set_cmd_completer (c
, filename_completer
);
1921 add_cmd ("user", no_class
, show_user
, _("\
1922 Show definitions of non-python/scheme user defined commands.\n\
1923 Argument is the name of the user defined command.\n\
1924 With no argument, show definitions of all user defined commands."), &showlist
);
1925 add_com ("apropos", class_support
, apropos_command
,
1926 _("Search for commands matching a REGEXP"));
1928 add_setshow_uinteger_cmd ("max-user-call-depth", no_class
,
1929 &max_user_call_depth
, _("\
1930 Set the max call depth for non-python/scheme user-defined commands."), _("\
1931 Show the max call depth for non-python/scheme user-defined commands."), NULL
,
1933 show_max_user_call_depth
,
1934 &setlist
, &showlist
);
1936 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1937 Set tracing of GDB CLI commands."), _("\
1938 Show state of GDB CLI command tracing."), _("\
1939 When 'on', each command is displayed as it is executed."),
1942 &setlist
, &showlist
);
1944 c
= add_com ("alias", class_support
, alias_command
, _("\
1945 Define a new command that is an alias of an existing command.\n\
1946 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1947 ALIAS is the name of the alias command to create.\n\
1948 COMMAND is the command being aliased to.\n\
1949 If \"-a\" is specified, the command is an abbreviation,\n\
1950 and will not appear in help command list output.\n\
1953 Make \"spe\" an alias of \"set print elements\":\n\
1954 alias spe = set print elements\n\
1955 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1956 alias -a set print elms = set print elements"));
1960 init_cli_cmds (void)
1962 struct cmd_list_element
*c
;
1963 char *source_help_text
;
1965 source_help_text
= xstrprintf (_("\
1966 Read commands from a file named FILE.\n\
1968 Usage: source [-s] [-v] FILE\n\
1969 -s: search for the script in the source search path,\n\
1970 even if FILE contains directories.\n\
1971 -v: each command in FILE is echoed as it is executed.\n\
1973 Note that the file \"%s\" is read automatically in this way\n\
1974 when GDB is started."), gdbinit
);
1975 c
= add_cmd ("source", class_support
, source_command
,
1976 source_help_text
, &cmdlist
);
1977 set_cmd_completer (c
, filename_completer
);