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
)
520 int search_flags
= OPF_TRY_CWD_FIRST
| OPF_RETURN_REALPATH
;
521 gdb::optional
<open_script
> opened
;
523 gdb::unique_xmalloc_ptr
<char> file (tilde_expand (script_file
));
526 search_flags
|= OPF_SEARCH_IN_PATH
;
528 /* Search for and open 'file' on the search path used for source
529 files. Put the full location in *FULL_PATHP. */
531 fd
= openp (source_path
, search_flags
,
532 file
.get (), O_RDONLY
, &temp_path
);
533 gdb::unique_xmalloc_ptr
<char> full_path (temp_path
);
538 FILE *result
= fdopen (fd
, FOPEN_RT
);
541 int save_errno
= errno
;
547 opened
.emplace (gdb_file_up (result
), std::move (full_path
));
552 /* Load script FILE, which has already been opened as STREAM.
553 FILE_TO_OPEN is the form of FILE to use if one needs to open the file.
554 This is provided as FILE may have been found via the source search path.
555 An important thing to note here is that FILE may be a symlink to a file
556 with a different or non-existing suffix, and thus one cannot infer the
557 extension language from FILE_TO_OPEN. */
560 source_script_from_stream (FILE *stream
, const char *file
,
561 const char *file_to_open
)
563 if (script_ext_mode
!= script_ext_off
)
565 const struct extension_language_defn
*extlang
566 = get_ext_lang_of_file (file
);
570 if (ext_lang_present_p (extlang
))
572 script_sourcer_func
*sourcer
573 = ext_lang_script_sourcer (extlang
);
575 gdb_assert (sourcer
!= NULL
);
576 sourcer (extlang
, stream
, file_to_open
);
579 else if (script_ext_mode
== script_ext_soft
)
581 /* Assume the file is a gdb script.
582 This is handled below. */
585 throw_ext_lang_unsupported (extlang
);
589 script_from_file (stream
, file
);
592 /* Worker to perform the "source" command.
594 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
595 search for it in the source search path. */
598 source_script_with_search (const char *file
, int from_tty
, int search_path
)
601 if (file
== NULL
|| *file
== 0)
602 error (_("source command requires file name of file to source."));
604 gdb::optional
<open_script
> opened
= find_and_open_script (file
, search_path
);
607 /* The script wasn't found, or was otherwise inaccessible.
608 If the source command was invoked interactively, throw an
609 error. Otherwise (e.g. if it was invoked by a script),
610 just emit a warning, rather than cause an error. */
612 perror_with_name (file
);
615 perror_warning_with_name (file
);
620 /* The python support reopens the file, so we need to pass full_path here
621 in case the file was found on the search path. It's useful to do this
622 anyway so that error messages show the actual file used. But only do
623 this if we (may have) used search_path, as printing the full path in
624 errors for the non-search case can be more noise than signal. */
625 source_script_from_stream (opened
->stream
.get (), file
,
626 search_path
? opened
->full_path
.get () : file
);
629 /* Wrapper around source_script_with_search to export it to main.c
630 for use in loading .gdbinit scripts. */
633 source_script (const char *file
, int from_tty
)
635 source_script_with_search (file
, from_tty
, 0);
639 source_command (char *args
, int from_tty
)
642 int *old_source_verbose
= XNEW (int);
645 scoped_restore save_source_verbose
= make_scoped_restore (&source_verbose
);
647 /* -v causes the source command to run in verbose mode.
648 -s causes the file to be searched in the source search path,
649 even if the file name contains a '/'.
650 We still have to be able to handle filenames with spaces in a
651 backward compatible way, so buildargv is not appropriate. */
655 while (args
[0] != '\0')
657 /* Make sure leading white space does not break the
659 args
= skip_spaces (args
);
664 if (args
[1] == 'v' && isspace (args
[2]))
668 /* Skip passed -v. */
671 else if (args
[1] == 's' && isspace (args
[2]))
675 /* Skip passed -s. */
682 file
= skip_spaces (args
);
685 source_script_with_search (file
, from_tty
, search_path
);
690 echo_command (char *text
, int from_tty
)
692 const char *p
= text
;
696 while ((c
= *p
++) != '\0')
700 /* \ at end of argument is used after spaces
701 so they won't be lost. */
705 c
= parse_escape (get_current_arch (), &p
);
707 printf_filtered ("%c", c
);
710 printf_filtered ("%c", c
);
713 /* Force this output to appear now. */
715 gdb_flush (gdb_stdout
);
719 shell_escape (const char *arg
, int from_tty
)
721 #if defined(CANT_FORK) || \
722 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
723 /* If ARG is NULL, they want an inferior shell, but `system' just
724 reports if the shell is available when passed a NULL arg. */
725 int rc
= system (arg
? arg
: "");
728 arg
= "inferior shell";
732 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", arg
,
733 safe_strerror (errno
));
734 gdb_flush (gdb_stderr
);
738 fprintf_unfiltered (gdb_stderr
, "%s exited with status %d\n", arg
, rc
);
739 gdb_flush (gdb_stderr
);
742 /* Make sure to return to the directory GDB thinks it is, in case
743 the shell command we just ran changed it. */
744 chdir (current_directory
);
746 #else /* Can fork. */
749 if ((pid
= vfork ()) == 0)
751 const char *p
, *user_shell
;
755 if ((user_shell
= (char *) getenv ("SHELL")) == NULL
)
756 user_shell
= "/bin/sh";
758 /* Get the name of the shell for arg0. */
759 p
= lbasename (user_shell
);
762 execl (user_shell
, p
, (char *) 0);
764 execl (user_shell
, p
, "-c", arg
, (char *) 0);
766 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", user_shell
,
767 safe_strerror (errno
));
768 gdb_flush (gdb_stderr
);
773 waitpid (pid
, &status
, 0);
775 error (_("Fork failed"));
776 #endif /* Can fork. */
779 /* Implementation of the "shell" command. */
782 shell_command (char *arg
, int from_tty
)
784 shell_escape (arg
, from_tty
);
788 edit_command (char *arg
, int from_tty
)
790 struct symtabs_and_lines sals
;
791 struct symtab_and_line sal
;
797 /* Pull in the current default source line if necessary. */
800 set_default_source_symtab_and_line ();
801 sal
= get_current_source_symtab_and_line ();
804 /* Bare "edit" edits file with present line. */
809 error (_("No default source file yet."));
810 sal
.line
+= get_lines_to_list () / 2;
816 /* Now should only be one argument -- decode it in SAL. */
818 event_location_up location
= string_to_event_location (&arg1
,
820 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
831 ambiguous_line_spec (&sals
);
840 error (_("Junk at end of line specification."));
842 /* If line was specified by address, first print exactly which
843 line, and which file. In this case, sal.symtab == 0 means
844 address is outside of all known source files, not that user
845 failed to give a filename. */
848 struct gdbarch
*gdbarch
;
851 error (_("No source file for address %s."),
852 paddress (get_current_arch (), sal
.pc
));
854 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
855 sym
= find_pc_function (sal
.pc
);
857 printf_filtered ("%s is in %s (%s:%d).\n",
858 paddress (gdbarch
, sal
.pc
),
859 SYMBOL_PRINT_NAME (sym
),
860 symtab_to_filename_for_display (sal
.symtab
),
863 printf_filtered ("%s is at %s:%d.\n",
864 paddress (gdbarch
, sal
.pc
),
865 symtab_to_filename_for_display (sal
.symtab
),
869 /* If what was given does not imply a symtab, it must be an
870 undebuggable symbol which means no source code. */
873 error (_("No line number known for %s."), arg
);
876 if ((editor
= (char *) getenv ("EDITOR")) == NULL
)
879 fn
= symtab_to_fullname (sal
.symtab
);
881 /* Quote the file name, in case it has whitespace or other special
883 p
= xstrprintf ("%s +%d \"%s\"", editor
, sal
.line
, fn
);
884 shell_escape (p
, from_tty
);
889 list_command (char *arg
, int from_tty
)
891 struct symtabs_and_lines sals
, sals_end
;
892 struct symtab_and_line sal
= { 0 };
893 struct symtab_and_line sal_end
= { 0 };
894 struct symtab_and_line cursal
= { 0 };
903 /* Pull in the current default source line if necessary. */
904 if (arg
== NULL
|| ((arg
[0] == '+' || arg
[0] == '-') && arg
[1] == '\0'))
906 set_default_source_symtab_and_line ();
907 cursal
= get_current_source_symtab_and_line ();
909 /* If this is the first "list" since we've set the current
910 source line, center the listing around that line. */
911 if (get_first_line_listed () == 0)
915 first
= std::max (cursal
.line
- get_lines_to_list () / 2, 1);
917 /* A small special case --- if listing backwards, and we
918 should list only one line, list the preceding line,
919 instead of the exact line we've just shown after e.g.,
920 stopping for a breakpoint. */
921 if (arg
!= NULL
&& arg
[0] == '-'
922 && get_lines_to_list () == 1 && first
> 1)
925 print_source_lines (cursal
.symtab
, first
,
926 first
+ get_lines_to_list (), 0);
929 /* "l" or "l +" lists next ten lines. */
930 else if (arg
== NULL
|| arg
[0] == '+')
931 print_source_lines (cursal
.symtab
, cursal
.line
,
932 cursal
.line
+ get_lines_to_list (), 0);
934 /* "l -" lists previous ten lines, the ones before the ten just
936 else if (arg
[0] == '-')
938 if (get_first_line_listed () == 1)
939 error (_("Already at the start of %s."),
940 symtab_to_filename_for_display (cursal
.symtab
));
941 print_source_lines (cursal
.symtab
,
942 std::max (get_first_line_listed ()
943 - get_lines_to_list (), 1),
944 get_first_line_listed (), 0);
950 /* Now if there is only one argument, decode it in SAL
952 If there are two arguments, decode them in SAL and SAL_END
953 and clear NO_END; however, if one of the arguments is blank,
954 set DUMMY_BEG or DUMMY_END to record that fact. */
956 if (!have_full_symbols () && !have_partial_symbols ())
957 error (_("No symbol table is loaded. Use the \"file\" command."));
964 event_location_up location
= string_to_event_location (&arg1
,
966 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
977 ambiguous_line_spec (&sals
);
986 /* Record whether the BEG arg is all digits. */
988 for (p
= arg
; p
!= arg1
&& *p
>= '0' && *p
<= '9'; p
++);
989 linenum_beg
= (p
== arg1
);
991 while (*arg1
== ' ' || *arg1
== '\t')
997 while (*arg1
== ' ' || *arg1
== '\t')
1003 event_location_up location
1004 = string_to_event_location (&arg1
, current_language
);
1006 sals_end
= decode_line_1 (location
.get (),
1007 DECODE_LINE_LIST_MODE
, NULL
, NULL
, 0);
1009 sals_end
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
1010 NULL
, sal
.symtab
, sal
.line
);
1012 filter_sals (&sals_end
);
1013 if (sals_end
.nelts
== 0)
1015 if (sals_end
.nelts
> 1)
1017 ambiguous_line_spec (&sals_end
);
1018 xfree (sals_end
.sals
);
1021 sal_end
= sals_end
.sals
[0];
1022 xfree (sals_end
.sals
);
1027 error (_("Junk at end of line specification."));
1029 if (!no_end
&& !dummy_beg
&& !dummy_end
1030 && sal
.symtab
!= sal_end
.symtab
)
1031 error (_("Specified start and end are in different files."));
1032 if (dummy_beg
&& dummy_end
)
1033 error (_("Two empty args do not say what lines to list."));
1035 /* If line was specified by address,
1036 first print exactly which line, and which file.
1038 In this case, sal.symtab == 0 means address is outside of all
1039 known source files, not that user failed to give a filename. */
1042 struct gdbarch
*gdbarch
;
1044 if (sal
.symtab
== 0)
1045 error (_("No source file for address %s."),
1046 paddress (get_current_arch (), sal
.pc
));
1048 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
1049 sym
= find_pc_function (sal
.pc
);
1051 printf_filtered ("%s is in %s (%s:%d).\n",
1052 paddress (gdbarch
, sal
.pc
),
1053 SYMBOL_PRINT_NAME (sym
),
1054 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1056 printf_filtered ("%s is at %s:%d.\n",
1057 paddress (gdbarch
, sal
.pc
),
1058 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1061 /* If line was not specified by just a line number, and it does not
1062 imply a symtab, it must be an undebuggable symbol which means no
1065 if (!linenum_beg
&& sal
.symtab
== 0)
1066 error (_("No line number known for %s."), arg
);
1068 /* If this command is repeated with RET,
1069 turn it into the no-arg variant. */
1074 if (dummy_beg
&& sal_end
.symtab
== 0)
1075 error (_("No default source file yet. Do \"help list\"."));
1077 print_source_lines (sal_end
.symtab
,
1078 std::max (sal_end
.line
- (get_lines_to_list () - 1), 1),
1079 sal_end
.line
+ 1, 0);
1080 else if (sal
.symtab
== 0)
1081 error (_("No default source file yet. Do \"help list\"."));
1084 int first_line
= sal
.line
- get_lines_to_list () / 2;
1086 if (first_line
< 1) first_line
= 1;
1088 print_source_lines (sal
.symtab
,
1090 first_line
+ get_lines_to_list (),
1094 print_source_lines (sal
.symtab
, sal
.line
,
1096 ? sal
.line
+ get_lines_to_list ()
1097 : sal_end
.line
+ 1),
1101 /* Subroutine of disassemble_command to simplify it.
1102 Perform the disassembly.
1103 NAME is the name of the function if known, or NULL.
1104 [LOW,HIGH) are the range of addresses to disassemble.
1105 MIXED is non-zero to print source with the assembler. */
1108 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
1109 CORE_ADDR low
, CORE_ADDR high
, int flags
)
1112 if (!tui_is_window_visible (DISASSEM_WIN
))
1115 printf_filtered ("Dump of assembler code ");
1117 printf_filtered ("for function %s:\n", name
);
1119 printf_filtered ("from %s to %s:\n",
1120 paddress (gdbarch
, low
), paddress (gdbarch
, high
));
1122 /* Dump the specified range. */
1123 gdb_disassembly (gdbarch
, current_uiout
, flags
, -1, low
, high
);
1125 printf_filtered ("End of assembler dump.\n");
1126 gdb_flush (gdb_stdout
);
1131 tui_show_assembly (gdbarch
, low
);
1136 /* Subroutine of disassemble_command to simplify it.
1137 Print a disassembly of the current function according to FLAGS. */
1140 disassemble_current_function (int flags
)
1142 struct frame_info
*frame
;
1143 struct gdbarch
*gdbarch
;
1144 CORE_ADDR low
, high
, pc
;
1147 frame
= get_selected_frame (_("No frame selected."));
1148 gdbarch
= get_frame_arch (frame
);
1149 pc
= get_frame_address_in_block (frame
);
1150 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1151 error (_("No function contains program counter for selected frame."));
1153 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1156 /* FIXME: cagney/2004-02-07: This should be an observer. */
1157 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1159 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1161 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1164 /* Dump a specified section of assembly code.
1168 - dump the assembly code for the function of the current pc
1169 disassemble [/mrs] addr
1170 - dump the assembly code for the function at ADDR
1171 disassemble [/mrs] low,high
1172 disassemble [/mrs] low,+length
1173 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1175 A /m modifier will include source code with the assembly in a
1176 "source centric" view. This view lists only the file of the first insn,
1177 even if other source files are involved (e.g., inlined functions), and
1178 the output is in source order, even with optimized code. This view is
1179 considered deprecated as it hasn't been useful in practice.
1181 A /r modifier will include raw instructions in hex with the assembly.
1183 A /s modifier will include source code with the assembly, like /m, with
1184 two important differences:
1185 1) The output is still in pc address order.
1186 2) File names and contents for all relevant source files are displayed. */
1189 disassemble_command (char *arg
, int from_tty
)
1191 struct gdbarch
*gdbarch
= get_current_arch ();
1192 CORE_ADDR low
, high
;
1207 error (_("Missing modifier."));
1209 while (*p
&& ! isspace (*p
))
1214 flags
|= DISASSEMBLY_SOURCE_DEPRECATED
;
1217 flags
|= DISASSEMBLY_RAW_INSN
;
1220 flags
|= DISASSEMBLY_SOURCE
;
1223 error (_("Invalid disassembly modifier."));
1227 p
= skip_spaces_const (p
);
1230 if ((flags
& (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1231 == (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1232 error (_("Cannot specify both /m and /s."));
1236 flags
|= DISASSEMBLY_OMIT_FNAME
;
1237 disassemble_current_function (flags
);
1241 pc
= value_as_address (parse_to_comma_and_eval (&p
));
1247 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1248 error (_("No function contains specified address."));
1250 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1253 /* FIXME: cagney/2004-02-07: This should be an observer. */
1254 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1256 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1257 flags
|= DISASSEMBLY_OMIT_FNAME
;
1261 /* Two arguments. */
1264 p
= skip_spaces_const (p
);
1270 high
= parse_and_eval_address (p
);
1275 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1279 make_command (char *arg
, int from_tty
)
1282 shell_escape ("make", from_tty
);
1285 std::string cmd
= std::string ("make ") + arg
;
1287 shell_escape (cmd
.c_str (), from_tty
);
1292 show_user (char *args
, int from_tty
)
1294 struct cmd_list_element
*c
;
1295 extern struct cmd_list_element
*cmdlist
;
1299 const char *comname
= args
;
1301 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1302 if (!cli_user_command_p (c
))
1303 error (_("Not a user command."));
1304 show_user_1 (c
, "", args
, gdb_stdout
);
1308 for (c
= cmdlist
; c
; c
= c
->next
)
1310 if (cli_user_command_p (c
) || c
->prefixlist
!= NULL
)
1311 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1316 /* Search through names of commands and documentations for a certain
1317 regular expression. */
1320 apropos_command (char *searchstr
, int from_tty
)
1322 if (searchstr
== NULL
)
1323 error (_("REGEXP string is empty"));
1325 compiled_regex
pattern (searchstr
, REG_ICASE
,
1326 _("Error in regular expression"));
1328 apropos_cmd (gdb_stdout
, cmdlist
, pattern
, "");
1331 /* Subroutine of alias_command to simplify it.
1332 Return the first N elements of ARGV flattened back to a string
1333 with a space separating each element.
1334 ARGV may not be NULL.
1335 This does not take care of quoting elements in case they contain spaces
1339 argv_to_string (char **argv
, int n
)
1344 gdb_assert (argv
!= NULL
);
1345 gdb_assert (n
>= 0 && n
<= countargv (argv
));
1347 for (i
= 0; i
< n
; ++i
)
1357 /* Subroutine of alias_command to simplify it.
1358 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1361 valid_command_p (const char *command
)
1363 struct cmd_list_element
*c
;
1365 c
= lookup_cmd_1 (& command
, cmdlist
, NULL
, 1);
1367 if (c
== NULL
|| c
== (struct cmd_list_element
*) -1)
1370 /* This is the slightly tricky part.
1371 lookup_cmd_1 will return a pointer to the last part of COMMAND
1372 to match, leaving COMMAND pointing at the remainder. */
1373 while (*command
== ' ' || *command
== '\t')
1375 return *command
== '\0';
1378 /* Called when "alias" was incorrectly used. */
1381 alias_usage_error (void)
1383 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1386 /* Make an alias of an existing command. */
1389 alias_command (char *args
, int from_tty
)
1391 int i
, alias_argc
, command_argc
;
1392 int abbrev_flag
= 0;
1394 const char *alias
, *command
;
1396 if (args
== NULL
|| strchr (args
, '=') == NULL
)
1397 alias_usage_error ();
1399 equals
= strchr (args
, '=');
1400 std::string
args2 (args
, equals
- args
);
1402 gdb_argv
built_alias_argv (args2
.c_str ());
1403 gdb_argv
command_argv (equals
+ 1);
1405 char **alias_argv
= built_alias_argv
.get ();
1406 while (alias_argv
[0] != NULL
)
1408 if (strcmp (alias_argv
[0], "-a") == 0)
1413 else if (strcmp (alias_argv
[0], "--") == 0)
1422 if (alias_argv
[0] == NULL
|| command_argv
[0] == NULL
1423 || *alias_argv
[0] == '\0' || *command_argv
[0] == '\0')
1424 alias_usage_error ();
1426 for (i
= 0; alias_argv
[i
] != NULL
; ++i
)
1428 if (! valid_user_defined_cmd_name_p (alias_argv
[i
]))
1431 error (_("Invalid command name: %s"), alias_argv
[i
]);
1433 error (_("Invalid command element name: %s"), alias_argv
[i
]);
1437 alias_argc
= countargv (alias_argv
);
1438 command_argc
= command_argv
.count ();
1440 /* COMMAND must exist.
1441 Reconstruct the command to remove any extraneous spaces,
1442 for better error messages. */
1443 std::string
command_string (argv_to_string (command_argv
.get (),
1445 command
= command_string
.c_str ();
1446 if (! valid_command_p (command
))
1447 error (_("Invalid command to alias to: %s"), command
);
1449 /* ALIAS must not exist. */
1450 std::string
alias_string (argv_to_string (alias_argv
, alias_argc
));
1451 alias
= alias_string
.c_str ();
1452 if (valid_command_p (alias
))
1453 error (_("Alias already exists: %s"), alias
);
1455 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1456 Example: alias spe = set print elements
1458 Otherwise ALIAS and COMMAND must have the same number of words,
1459 and every word except the last must match; and the last word of
1460 ALIAS is made an alias of the last word of COMMAND.
1461 Example: alias set print elms = set pr elem
1462 Note that unambiguous abbreviations are allowed. */
1464 if (alias_argc
== 1)
1466 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1467 add_com_alias (xstrdup (alias_argv
[0]), command
, class_alias
,
1472 const char *alias_prefix
, *command_prefix
;
1473 struct cmd_list_element
*c_alias
, *c_command
;
1475 if (alias_argc
!= command_argc
)
1476 error (_("Mismatched command length between ALIAS and COMMAND."));
1478 /* Create copies of ALIAS and COMMAND without the last word,
1479 and use that to verify the leading elements match. */
1480 std::string
alias_prefix_string (argv_to_string (alias_argv
,
1482 std::string
command_prefix_string (argv_to_string (alias_argv
,
1484 alias_prefix
= alias_prefix_string
.c_str ();
1485 command_prefix
= command_prefix_string
.c_str ();
1487 c_command
= lookup_cmd_1 (& command_prefix
, cmdlist
, NULL
, 1);
1488 /* We've already tried to look up COMMAND. */
1489 gdb_assert (c_command
!= NULL
1490 && c_command
!= (struct cmd_list_element
*) -1);
1491 gdb_assert (c_command
->prefixlist
!= NULL
);
1492 c_alias
= lookup_cmd_1 (& alias_prefix
, cmdlist
, NULL
, 1);
1493 if (c_alias
!= c_command
)
1494 error (_("ALIAS and COMMAND prefixes do not match."));
1496 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1497 add_alias_cmd (xstrdup (alias_argv
[alias_argc
- 1]),
1498 command_argv
[command_argc
- 1],
1499 class_alias
, abbrev_flag
, c_command
->prefixlist
);
1503 /* Print a list of files and line numbers which a user may choose from
1504 in order to list a function which was specified ambiguously (as
1505 with `list classname::overloadedfuncname', for example). The
1506 vector in SALS provides the filenames and line numbers. */
1509 ambiguous_line_spec (struct symtabs_and_lines
*sals
)
1513 for (i
= 0; i
< sals
->nelts
; ++i
)
1514 printf_filtered (_("file: \"%s\", line number: %d\n"),
1515 symtab_to_filename_for_display (sals
->sals
[i
].symtab
),
1516 sals
->sals
[i
].line
);
1519 /* Sort function for filter_sals. */
1522 compare_symtabs (const void *a
, const void *b
)
1524 const struct symtab_and_line
*sala
= (const struct symtab_and_line
*) a
;
1525 const struct symtab_and_line
*salb
= (const struct symtab_and_line
*) b
;
1526 const char *dira
= SYMTAB_DIRNAME (sala
->symtab
);
1527 const char *dirb
= SYMTAB_DIRNAME (salb
->symtab
);
1535 else if (dirb
== NULL
)
1542 r
= filename_cmp (dira
, dirb
);
1547 r
= filename_cmp (sala
->symtab
->filename
, salb
->symtab
->filename
);
1551 if (sala
->line
< salb
->line
)
1553 return sala
->line
== salb
->line
? 0 : 1;
1556 /* Remove any SALs that do not match the current program space, or
1557 which appear to be "file:line" duplicates. */
1560 filter_sals (struct symtabs_and_lines
*sals
)
1565 for (i
= 0; i
< sals
->nelts
; ++i
)
1567 if (sals
->sals
[i
].pspace
== current_program_space
1568 && sals
->sals
[i
].symtab
!= NULL
)
1570 sals
->sals
[out
] = sals
->sals
[i
];
1576 qsort (sals
->sals
, sals
->nelts
, sizeof (struct symtab_and_line
),
1581 for (i
= 1; i
< sals
->nelts
; ++i
)
1583 if (compare_symtabs (&sals
->sals
[prev
], &sals
->sals
[i
]))
1585 /* Symtabs differ. */
1586 sals
->sals
[out
] = sals
->sals
[i
];
1592 if (sals
->nelts
== 0)
1602 set_debug (char *arg
, int from_tty
)
1604 printf_unfiltered (_("\"set debug\" must be followed by "
1605 "the name of a debug subcommand.\n"));
1606 help_list (setdebuglist
, "set debug ", all_commands
, gdb_stdout
);
1610 show_debug (char *args
, int from_tty
)
1612 cmd_show_list (showdebuglist
, from_tty
, "");
1616 init_cmd_lists (void)
1618 max_user_call_depth
= 1024;
1622 show_info_verbose (struct ui_file
*file
, int from_tty
,
1623 struct cmd_list_element
*c
,
1627 fprintf_filtered (file
,
1628 _("Verbose printing of informational messages is %s.\n"),
1631 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1635 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1636 struct cmd_list_element
*c
, const char *value
)
1638 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1643 show_remote_debug (struct ui_file
*file
, int from_tty
,
1644 struct cmd_list_element
*c
, const char *value
)
1646 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1651 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1652 struct cmd_list_element
*c
, const char *value
)
1654 fprintf_filtered (file
,
1655 _("Timeout limit to wait for target to respond is %s.\n"),
1660 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1661 struct cmd_list_element
*c
, const char *value
)
1663 fprintf_filtered (file
,
1664 _("The max call depth for user-defined commands is %s.\n"),
1670 initialize_file_ftype _initialize_cli_cmds
;
1673 _initialize_cli_cmds (void)
1675 struct cmd_list_element
*c
;
1677 /* Define the classes of commands.
1678 They will appear in the help list in alphabetical order. */
1680 add_cmd ("internals", class_maintenance
, NULL
, _("\
1681 Maintenance commands.\n\
1682 Some gdb commands are provided just for use by gdb maintainers.\n\
1683 These commands are subject to frequent change, and may not be as\n\
1684 well documented as user commands."),
1686 add_cmd ("obscure", class_obscure
, NULL
, _("Obscure features."), &cmdlist
);
1687 add_cmd ("aliases", class_alias
, NULL
,
1688 _("Aliases of other commands."), &cmdlist
);
1689 add_cmd ("user-defined", class_user
, NULL
, _("\
1690 User-defined commands.\n\
1691 The commands in this class are those defined by the user.\n\
1692 Use the \"define\" command to define a command."), &cmdlist
);
1693 add_cmd ("support", class_support
, NULL
, _("Support facilities."), &cmdlist
);
1695 add_cmd ("status", class_info
, NULL
, _("Status inquiries."), &cmdlist
);
1696 add_cmd ("files", class_files
, NULL
, _("Specifying and examining files."),
1698 add_cmd ("breakpoints", class_breakpoint
, NULL
,
1699 _("Making program stop at certain points."), &cmdlist
);
1700 add_cmd ("data", class_vars
, NULL
, _("Examining data."), &cmdlist
);
1701 add_cmd ("stack", class_stack
, NULL
, _("\
1702 Examining the stack.\n\
1703 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1704 counting from zero for the innermost (currently executing) frame.\n\n\
1705 At any time gdb identifies one frame as the \"selected\" frame.\n\
1706 Variable lookups are done with respect to the selected frame.\n\
1707 When the program being debugged stops, gdb selects the innermost frame.\n\
1708 The commands below can be used to select other frames by number or address."),
1710 add_cmd ("running", class_run
, NULL
, _("Running the program."), &cmdlist
);
1712 /* Define general commands. */
1714 add_com ("pwd", class_files
, pwd_command
, _("\
1715 Print working directory. This is used for your program as well."));
1717 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1718 Set working directory to DIR for debugger and program being debugged.\n\
1719 The change does not take effect for the program being debugged\n\
1720 until the next time it is started."), &cmdlist
);
1721 set_cmd_completer (c
, filename_completer
);
1723 add_com ("echo", class_support
, echo_command
, _("\
1724 Print a constant string. Give string as argument.\n\
1725 C escape sequences may be used in the argument.\n\
1726 No newline is added at the end of the argument;\n\
1727 use \"\\n\" if you want a newline to be printed.\n\
1728 Since leading and trailing whitespace are ignored in command arguments,\n\
1729 if you want to print some you must use \"\\\" before leading whitespace\n\
1730 to be printed or after trailing whitespace."));
1732 add_setshow_enum_cmd ("script-extension", class_support
,
1733 script_ext_enums
, &script_ext_mode
, _("\
1734 Set mode for script filename extension recognition."), _("\
1735 Show mode for script filename extension recognition."), _("\
1736 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1737 soft == evaluate script according to filename extension, fallback to GDB script"
1739 strict == evaluate script according to filename extension, error if not supported"
1742 show_script_ext_mode
,
1743 &setlist
, &showlist
);
1745 add_com ("quit", class_support
, quit_command
, _("\
1747 Usage: quit [EXPR]\n\
1748 The optional expression EXPR, if present, is evaluated and the result\n\
1749 used as GDB's exit code. The default is zero."));
1750 c
= add_com ("help", class_support
, help_command
,
1751 _("Print list of commands."));
1752 set_cmd_completer (c
, command_completer
);
1753 add_com_alias ("q", "quit", class_support
, 1);
1754 add_com_alias ("h", "help", class_support
, 1);
1756 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1757 Set verbosity."), _("\
1758 Show verbosity."), NULL
,
1761 &setlist
, &showlist
);
1763 add_prefix_cmd ("history", class_support
, set_history
,
1764 _("Generic command for setting command history parameters."),
1765 &sethistlist
, "set history ", 0, &setlist
);
1766 add_prefix_cmd ("history", class_support
, show_history
,
1767 _("Generic command for showing command history parameters."),
1768 &showhistlist
, "show history ", 0, &showlist
);
1770 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1771 Set history expansion on command input."), _("\
1772 Show history expansion on command input."), _("\
1773 Without an argument, history expansion is enabled."),
1775 show_history_expansion_p
,
1776 &sethistlist
, &showhistlist
);
1778 add_prefix_cmd ("info", class_info
, info_command
, _("\
1779 Generic command for showing things about the program being debugged."),
1780 &infolist
, "info ", 0, &cmdlist
);
1781 add_com_alias ("i", "info", class_info
, 1);
1782 add_com_alias ("inf", "info", class_info
, 1);
1784 add_com ("complete", class_obscure
, complete_command
,
1785 _("List the completions for the rest of the line as a command."));
1787 add_prefix_cmd ("show", class_info
, show_command
, _("\
1788 Generic command for showing things about the debugger."),
1789 &showlist
, "show ", 0, &cmdlist
);
1790 /* Another way to get at the same thing. */
1791 add_info ("set", show_command
, _("Show all GDB settings."));
1793 add_cmd ("commands", no_set_class
, show_commands
, _("\
1794 Show the history of commands you typed.\n\
1795 You can supply a command number to start with, or a `+' to start after\n\
1796 the previous command number shown."),
1799 add_cmd ("version", no_set_class
, show_version
,
1800 _("Show what version of GDB this is."), &showlist
);
1802 add_cmd ("configuration", no_set_class
, show_configuration
,
1803 _("Show how GDB was configured at build time."), &showlist
);
1805 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1806 Set debugging of remote protocol."), _("\
1807 Show debugging of remote protocol."), _("\
1808 When enabled, each packet sent or received with the remote target\n\
1812 &setdebuglist
, &showdebuglist
);
1814 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class
,
1815 &remote_timeout
, _("\
1816 Set timeout limit to wait for target to respond."), _("\
1817 Show timeout limit to wait for target to respond."), _("\
1818 This value is used to set the time limit for gdb to wait for a response\n\
1821 show_remote_timeout
,
1822 &setlist
, &showlist
);
1824 add_prefix_cmd ("debug", no_class
, set_debug
,
1825 _("Generic command for setting gdb debugging flags"),
1826 &setdebuglist
, "set debug ", 0, &setlist
);
1828 add_prefix_cmd ("debug", no_class
, show_debug
,
1829 _("Generic command for showing gdb debugging flags"),
1830 &showdebuglist
, "show debug ", 0, &showlist
);
1832 c
= add_com ("shell", class_support
, shell_command
, _("\
1833 Execute the rest of the line as a shell command.\n\
1834 With no arguments, run an inferior shell."));
1835 set_cmd_completer (c
, filename_completer
);
1837 c
= add_com ("edit", class_files
, edit_command
, _("\
1838 Edit specified file or function.\n\
1839 With no argument, edits file containing most recent line listed.\n\
1840 Editing targets can be specified in these ways:\n\
1841 FILE:LINENUM, to edit at that line in that file,\n\
1842 FUNCTION, to edit at the beginning of that function,\n\
1843 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1844 *ADDRESS, to edit at the line containing that address.\n\
1845 Uses EDITOR environment variable contents as editor (or ex as default)."));
1847 c
->completer
= location_completer
;
1849 add_com ("list", class_files
, list_command
, _("\
1850 List specified function or line.\n\
1851 With no argument, lists ten more lines after or around previous listing.\n\
1852 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1853 One argument specifies a line, and ten lines are listed around that line.\n\
1854 Two arguments with comma between specify starting and ending lines to list.\n\
1855 Lines can be specified in these ways:\n\
1856 LINENUM, to list around that line in current file,\n\
1857 FILE:LINENUM, to list around that line in that file,\n\
1858 FUNCTION, to list around beginning of that function,\n\
1859 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1860 *ADDRESS, to list around the line containing that address.\n\
1861 With two args, if one is empty, it stands for ten lines away from\n\
1864 By default, when a single location is given, display ten lines.\n\
1865 This can be changed using \"set listsize\", and the current value\n\
1866 can be shown using \"show listsize\"."));
1868 add_com_alias ("l", "list", class_files
, 1);
1871 add_com_alias ("file", "list", class_files
, 1);
1873 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1874 Disassemble a specified section of memory.\n\
1875 Default is the function surrounding the pc of the selected frame.\n\
1877 With a /m modifier, source lines are included (if available).\n\
1878 This view is \"source centric\": the output is in source line order,\n\
1879 regardless of any optimization that is present. Only the main source file\n\
1880 is displayed, not those of, e.g., any inlined functions.\n\
1881 This modifier hasn't proved useful in practice and is deprecated\n\
1884 With a /s modifier, source lines are included (if available).\n\
1885 This differs from /m in two important respects:\n\
1886 - the output is still in pc address order, and\n\
1887 - file names and contents for all relevant source files are displayed.\n\
1889 With a /r modifier, raw instructions in hex are included.\n\
1891 With a single argument, the function surrounding that address is dumped.\n\
1892 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1893 in the form of \"start,end\", or \"start,+length\".\n\
1895 Note that the address is interpreted as an expression, not as a location\n\
1896 like in the \"break\" command.\n\
1897 So, for example, if you want to disassemble function bar in file foo.c\n\
1898 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1899 set_cmd_completer (c
, location_completer
);
1901 add_com_alias ("!", "shell", class_support
, 0);
1903 c
= add_com ("make", class_support
, make_command
, _("\
1904 Run the ``make'' program using the rest of the line as arguments."));
1905 set_cmd_completer (c
, filename_completer
);
1906 add_cmd ("user", no_class
, show_user
, _("\
1907 Show definitions of non-python/scheme user defined commands.\n\
1908 Argument is the name of the user defined command.\n\
1909 With no argument, show definitions of all user defined commands."), &showlist
);
1910 add_com ("apropos", class_support
, apropos_command
,
1911 _("Search for commands matching a REGEXP"));
1913 add_setshow_uinteger_cmd ("max-user-call-depth", no_class
,
1914 &max_user_call_depth
, _("\
1915 Set the max call depth for non-python/scheme user-defined commands."), _("\
1916 Show the max call depth for non-python/scheme user-defined commands."), NULL
,
1918 show_max_user_call_depth
,
1919 &setlist
, &showlist
);
1921 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1922 Set tracing of GDB CLI commands."), _("\
1923 Show state of GDB CLI command tracing."), _("\
1924 When 'on', each command is displayed as it is executed."),
1927 &setlist
, &showlist
);
1929 c
= add_com ("alias", class_support
, alias_command
, _("\
1930 Define a new command that is an alias of an existing command.\n\
1931 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1932 ALIAS is the name of the alias command to create.\n\
1933 COMMAND is the command being aliased to.\n\
1934 If \"-a\" is specified, the command is an abbreviation,\n\
1935 and will not appear in help command list output.\n\
1938 Make \"spe\" an alias of \"set print elements\":\n\
1939 alias spe = set print elements\n\
1940 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1941 alias -a set print elms = set print elements"));
1945 init_cli_cmds (void)
1947 struct cmd_list_element
*c
;
1948 char *source_help_text
;
1950 source_help_text
= xstrprintf (_("\
1951 Read commands from a file named FILE.\n\
1953 Usage: source [-s] [-v] FILE\n\
1954 -s: search for the script in the source search path,\n\
1955 even if FILE contains directories.\n\
1956 -v: each command in FILE is echoed as it is executed.\n\
1958 Note that the file \"%s\" is read automatically in this way\n\
1959 when GDB is started."), gdbinit
);
1960 c
= add_cmd ("source", class_support
, source_command
,
1961 source_help_text
, &cmdlist
);
1962 set_cmd_completer (c
, filename_completer
);