3 Copyright (C) 2000-2016 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 "dyn-string.h"
23 #include "readline/readline.h"
24 #include "readline/tilde.h"
25 #include "completer.h"
26 #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */
27 #include "gdb_wait.h" /* For shell escape implementation. */
28 #include "gdb_regex.h" /* Used by apropos_command. */
29 #include "gdb_vfork.h"
31 #include "expression.h"
35 #include "filenames.h" /* For DOSish file names. */
39 #include "tracepoint.h"
40 #include "filestuff.h"
46 #include "cli/cli-decode.h"
47 #include "cli/cli-script.h"
48 #include "cli/cli-setshow.h"
49 #include "cli/cli-cmds.h"
50 #include "cli/cli-utils.h"
52 #include "extension.h"
55 #include "tui/tui.h" /* For tui_active et.al. */
60 /* Prototypes for local command functions */
62 static void complete_command (char *, int);
64 static void echo_command (char *, int);
66 static void pwd_command (char *, int);
68 static void show_version (char *, int);
70 static void help_command (char *, int);
72 static void show_command (char *, int);
74 static void info_command (char *, int);
76 static void show_debug (char *, int);
78 static void set_debug (char *, int);
80 static void show_user (char *, int);
82 static void make_command (char *, int);
84 static void shell_escape (char *, int);
86 static void edit_command (char *, int);
88 static void list_command (char *, int);
90 /* Prototypes for local utility functions */
92 static void ambiguous_line_spec (struct symtabs_and_lines
*);
94 static void filter_sals (struct symtabs_and_lines
*);
97 /* Limit the call depth of user-defined commands */
98 unsigned int max_user_call_depth
;
100 /* Define all cmd_list_elements. */
102 /* Chain containing all defined commands. */
104 struct cmd_list_element
*cmdlist
;
106 /* Chain containing all defined info subcommands. */
108 struct cmd_list_element
*infolist
;
110 /* Chain containing all defined enable subcommands. */
112 struct cmd_list_element
*enablelist
;
114 /* Chain containing all defined disable subcommands. */
116 struct cmd_list_element
*disablelist
;
118 /* Chain containing all defined stop subcommands. */
120 struct cmd_list_element
*stoplist
;
122 /* Chain containing all defined delete subcommands. */
124 struct cmd_list_element
*deletelist
;
126 /* Chain containing all defined detach subcommands. */
128 struct cmd_list_element
*detachlist
;
130 /* Chain containing all defined kill subcommands. */
132 struct cmd_list_element
*killlist
;
134 /* Chain containing all defined set subcommands */
136 struct cmd_list_element
*setlist
;
138 /* Chain containing all defined unset subcommands */
140 struct cmd_list_element
*unsetlist
;
142 /* Chain containing all defined show subcommands. */
144 struct cmd_list_element
*showlist
;
146 /* Chain containing all defined \"set history\". */
148 struct cmd_list_element
*sethistlist
;
150 /* Chain containing all defined \"show history\". */
152 struct cmd_list_element
*showhistlist
;
154 /* Chain containing all defined \"unset history\". */
156 struct cmd_list_element
*unsethistlist
;
158 /* Chain containing all defined maintenance subcommands. */
160 struct cmd_list_element
*maintenancelist
;
162 /* Chain containing all defined "maintenance info" subcommands. */
164 struct cmd_list_element
*maintenanceinfolist
;
166 /* Chain containing all defined "maintenance print" subcommands. */
168 struct cmd_list_element
*maintenanceprintlist
;
170 struct cmd_list_element
*setprintlist
;
172 struct cmd_list_element
*showprintlist
;
174 struct cmd_list_element
*setdebuglist
;
176 struct cmd_list_element
*showdebuglist
;
178 struct cmd_list_element
*setchecklist
;
180 struct cmd_list_element
*showchecklist
;
182 /* Command tracing state. */
184 int source_verbose
= 0;
185 int trace_commands
= 0;
187 /* 'script-extension' option support. */
189 static const char script_ext_off
[] = "off";
190 static const char script_ext_soft
[] = "soft";
191 static const char script_ext_strict
[] = "strict";
193 static const char *const script_ext_enums
[] = {
200 static const char *script_ext_mode
= script_ext_soft
;
202 /* Utility used everywhere when at least one argument is needed and
206 error_no_arg (const char *why
)
208 error (_("Argument required (%s)."), why
);
211 /* The "info" command is defined as a prefix, with allow_unknown = 0.
212 Therefore, its own definition is called only for "info" with no
216 info_command (char *arg
, int from_tty
)
218 printf_unfiltered (_("\"info\" must be followed by "
219 "the name of an info command.\n"));
220 help_list (infolist
, "info ", all_commands
, gdb_stdout
);
223 /* The "show" command with no arguments shows all the settings. */
226 show_command (char *arg
, int from_tty
)
228 cmd_show_list (showlist
, from_tty
, "");
231 /* Provide documentation on command or list given by COMMAND. FROM_TTY
235 help_command (char *command
, int from_tty
)
237 help_cmd (command
, gdb_stdout
);
240 /* Note: The "complete" command is used by Emacs to implement completion.
241 [Is that why this function writes output with *_unfiltered?] */
244 complete_command (char *arg
, int from_tty
)
247 char *point
, *arg_prefix
;
248 VEC (char_ptr
) *completions
;
252 if (max_completions
== 0)
254 /* Only print this for non-mi frontends. An MI frontend may not
255 be able to handle this. */
256 if (!ui_out_is_mi_like_p (current_uiout
))
258 printf_unfiltered (_("max-completions is zero,"
259 " completion is disabled.\n"));
266 argpoint
= strlen (arg
);
268 /* complete_line assumes that its first argument is somewhere
269 within, and except for filenames at the beginning of, the word to
270 be completed. The following crude imitation of readline's
271 word-breaking tries to accomodate this. */
272 point
= arg
+ argpoint
;
275 if (strchr (rl_completer_word_break_characters
, point
[-1]) != 0)
280 arg_prefix
= (char *) alloca (point
- arg
+ 1);
281 memcpy (arg_prefix
, arg
, point
- arg
);
282 arg_prefix
[point
- arg
] = 0;
284 completions
= complete_line (point
, arg
, argpoint
);
288 int ix
, size
= VEC_length (char_ptr
, completions
);
289 char *item
, *prev
= NULL
;
291 qsort (VEC_address (char_ptr
, completions
), size
,
292 sizeof (char *), compare_strings
);
294 /* We do extra processing here since we only want to print each
296 for (ix
= 0; VEC_iterate (char_ptr
, completions
, ix
, item
); ++ix
)
298 if (prev
== NULL
|| strcmp (item
, prev
) != 0)
300 printf_unfiltered ("%s%s\n", arg_prefix
, item
);
309 VEC_free (char_ptr
, completions
);
311 if (size
== max_completions
)
313 /* ARG_PREFIX and POINT are included in the output so that emacs
314 will include the message in the output. */
315 printf_unfiltered (_("%s%s %s\n"),
317 get_max_completions_reached_message ());
323 is_complete_command (struct cmd_list_element
*c
)
325 return cmd_cfunc_eq (c
, complete_command
);
329 show_version (char *args
, int from_tty
)
331 print_gdb_version (gdb_stdout
);
332 printf_filtered ("\n");
336 show_configuration (char *args
, int from_tty
)
338 print_gdb_configuration (gdb_stdout
);
341 /* Handle the quit command. */
344 quit_command (char *args
, int from_tty
)
346 if (!quit_confirm ())
347 error (_("Not confirmed."));
349 query_if_trace_running (from_tty
);
351 quit_force (args
, from_tty
);
355 pwd_command (char *args
, int from_tty
)
358 error (_("The \"pwd\" command does not take an argument: %s"), args
);
359 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
360 error (_("Error finding name of working directory: %s"),
361 safe_strerror (errno
));
363 if (strcmp (gdb_dirbuf
, current_directory
) != 0)
364 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
365 current_directory
, gdb_dirbuf
);
367 printf_unfiltered (_("Working directory %s.\n"), current_directory
);
371 cd_command (char *dir
, int from_tty
)
374 /* Found something other than leading repetitions of "/..". */
377 struct cleanup
*cleanup
;
379 /* If the new directory is absolute, repeat is a no-op; if relative,
380 repeat might be useful but is more likely to be a mistake. */
386 dir
= tilde_expand (dir
);
387 cleanup
= make_cleanup (xfree
, dir
);
390 perror_with_name (dir
);
392 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
393 /* There's too much mess with DOSish names like "d:", "d:.",
394 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
395 simply get the canonicalized name of the current directory. */
396 dir
= getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
));
400 if (IS_DIR_SEPARATOR (dir
[len
- 1]))
402 /* Remove the trailing slash unless this is a root directory
403 (including a drive letter on non-Unix systems). */
404 if (!(len
== 1) /* "/" */
405 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
406 && !(len
== 3 && dir
[1] == ':') /* "d:/" */
412 dir
= savestring (dir
, len
);
413 if (IS_ABSOLUTE_PATH (dir
))
414 current_directory
= dir
;
417 if (IS_DIR_SEPARATOR (current_directory
[strlen (current_directory
) - 1]))
418 current_directory
= concat (current_directory
, dir
, (char *)NULL
);
420 current_directory
= concat (current_directory
, SLASH_STRING
,
425 /* Now simplify any occurrences of `.' and `..' in the pathname. */
428 for (p
= current_directory
; *p
;)
430 if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.'
431 && (p
[2] == 0 || IS_DIR_SEPARATOR (p
[2])))
432 memmove (p
, p
+ 2, strlen (p
+ 2) + 1);
433 else if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.' && p
[2] == '.'
434 && (p
[3] == 0 || IS_DIR_SEPARATOR (p
[3])))
438 /* Search backwards for the directory just before the "/.."
439 and obliterate it and the "/..". */
442 while (q
!= current_directory
&& !IS_DIR_SEPARATOR (q
[-1]))
445 if (q
== current_directory
)
446 /* current_directory is
447 a relative pathname ("can't happen"--leave it alone). */
451 memmove (q
- 1, p
+ 3, strlen (p
+ 3) + 1);
456 /* We are dealing with leading repetitions of "/..", for
457 example "/../..", which is the Mach super-root. */
467 forget_cached_source_info ();
470 pwd_command ((char *) 0, 1);
472 do_cleanups (cleanup
);
475 /* Show the current value of the 'script-extension' option. */
478 show_script_ext_mode (struct ui_file
*file
, int from_tty
,
479 struct cmd_list_element
*c
, const char *value
)
481 fprintf_filtered (file
,
482 _("Script filename extension recognition is \"%s\".\n"),
486 /* Try to open SCRIPT_FILE.
487 If successful, the full path name is stored in *FULL_PATHP,
488 the stream is stored in *STREAMP, and return 1.
489 The caller is responsible for freeing *FULL_PATHP.
490 If not successful, return 0; errno is set for the last file
493 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
494 search for it in the source search path. */
497 find_and_open_script (const char *script_file
, int search_path
,
498 FILE **streamp
, char **full_pathp
)
502 struct cleanup
*old_cleanups
;
503 int search_flags
= OPF_TRY_CWD_FIRST
| OPF_RETURN_REALPATH
;
505 file
= tilde_expand (script_file
);
506 old_cleanups
= make_cleanup (xfree
, file
);
509 search_flags
|= OPF_SEARCH_IN_PATH
;
511 /* Search for and open 'file' on the search path used for source
512 files. Put the full location in *FULL_PATHP. */
513 fd
= openp (source_path
, search_flags
,
514 file
, O_RDONLY
, full_pathp
);
518 int save_errno
= errno
;
519 do_cleanups (old_cleanups
);
524 do_cleanups (old_cleanups
);
526 *streamp
= fdopen (fd
, FOPEN_RT
);
527 if (*streamp
== NULL
)
529 int save_errno
= errno
;
541 /* Load script FILE, which has already been opened as STREAM.
542 FILE_TO_OPEN is the form of FILE to use if one needs to open the file.
543 This is provided as FILE may have been found via the source search path.
544 An important thing to note here is that FILE may be a symlink to a file
545 with a different or non-existing suffix, and thus one cannot infer the
546 extension language from FILE_TO_OPEN. */
549 source_script_from_stream (FILE *stream
, const char *file
,
550 const char *file_to_open
)
552 if (script_ext_mode
!= script_ext_off
)
554 const struct extension_language_defn
*extlang
555 = get_ext_lang_of_file (file
);
559 if (ext_lang_present_p (extlang
))
561 script_sourcer_func
*sourcer
562 = ext_lang_script_sourcer (extlang
);
564 gdb_assert (sourcer
!= NULL
);
565 sourcer (extlang
, stream
, file_to_open
);
568 else if (script_ext_mode
== script_ext_soft
)
570 /* Assume the file is a gdb script.
571 This is handled below. */
574 throw_ext_lang_unsupported (extlang
);
578 script_from_file (stream
, file
);
581 /* Worker to perform the "source" command.
583 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
584 search for it in the source search path. */
587 source_script_with_search (const char *file
, int from_tty
, int search_path
)
591 struct cleanup
*old_cleanups
;
593 if (file
== NULL
|| *file
== 0)
594 error (_("source command requires file name of file to source."));
596 if (!find_and_open_script (file
, search_path
, &stream
, &full_path
))
598 /* The script wasn't found, or was otherwise inaccessible.
599 If the source command was invoked interactively, throw an
600 error. Otherwise (e.g. if it was invoked by a script),
601 just emit a warning, rather than cause an error. */
603 perror_with_name (file
);
606 perror_warning_with_name (file
);
611 old_cleanups
= make_cleanup (xfree
, full_path
);
612 make_cleanup_fclose (stream
);
613 /* The python support reopens the file, so we need to pass full_path here
614 in case the file was found on the search path. It's useful to do this
615 anyway so that error messages show the actual file used. But only do
616 this if we (may have) used search_path, as printing the full path in
617 errors for the non-search case can be more noise than signal. */
618 source_script_from_stream (stream
, file
, search_path
? full_path
: file
);
619 do_cleanups (old_cleanups
);
622 /* Wrapper around source_script_with_search to export it to main.c
623 for use in loading .gdbinit scripts. */
626 source_script (const char *file
, int from_tty
)
628 source_script_with_search (file
, from_tty
, 0);
631 /* Return the source_verbose global variable to its previous state
632 on exit from the source command, by whatever means. */
634 source_verbose_cleanup (void *old_value
)
636 source_verbose
= *(int *)old_value
;
641 source_command (char *args
, int from_tty
)
643 struct cleanup
*old_cleanups
;
645 int *old_source_verbose
= XNEW (int);
648 *old_source_verbose
= source_verbose
;
649 old_cleanups
= make_cleanup (source_verbose_cleanup
,
652 /* -v causes the source command to run in verbose mode.
653 -s causes the file to be searched in the source search path,
654 even if the file name contains a '/'.
655 We still have to be able to handle filenames with spaces in a
656 backward compatible way, so buildargv is not appropriate. */
660 while (args
[0] != '\0')
662 /* Make sure leading white space does not break the
664 args
= skip_spaces (args
);
669 if (args
[1] == 'v' && isspace (args
[2]))
673 /* Skip passed -v. */
676 else if (args
[1] == 's' && isspace (args
[2]))
680 /* Skip passed -s. */
687 file
= skip_spaces (args
);
690 source_script_with_search (file
, from_tty
, search_path
);
692 do_cleanups (old_cleanups
);
697 echo_command (char *text
, int from_tty
)
699 const char *p
= text
;
703 while ((c
= *p
++) != '\0')
707 /* \ at end of argument is used after spaces
708 so they won't be lost. */
712 c
= parse_escape (get_current_arch (), &p
);
714 printf_filtered ("%c", c
);
717 printf_filtered ("%c", c
);
720 /* Force this output to appear now. */
722 gdb_flush (gdb_stdout
);
726 shell_escape (char *arg
, int from_tty
)
728 #if defined(CANT_FORK) || \
729 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
730 /* If ARG is NULL, they want an inferior shell, but `system' just
731 reports if the shell is available when passed a NULL arg. */
732 int rc
= system (arg
? arg
: "");
735 arg
= "inferior shell";
739 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", arg
,
740 safe_strerror (errno
));
741 gdb_flush (gdb_stderr
);
745 fprintf_unfiltered (gdb_stderr
, "%s exited with status %d\n", arg
, rc
);
746 gdb_flush (gdb_stderr
);
749 /* Make sure to return to the directory GDB thinks it is, in case
750 the shell command we just ran changed it. */
751 chdir (current_directory
);
753 #else /* Can fork. */
756 if ((pid
= vfork ()) == 0)
758 const char *p
, *user_shell
;
762 if ((user_shell
= (char *) getenv ("SHELL")) == NULL
)
763 user_shell
= "/bin/sh";
765 /* Get the name of the shell for arg0. */
766 p
= lbasename (user_shell
);
769 execl (user_shell
, p
, (char *) 0);
771 execl (user_shell
, p
, "-c", arg
, (char *) 0);
773 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", user_shell
,
774 safe_strerror (errno
));
775 gdb_flush (gdb_stderr
);
780 waitpid (pid
, &status
, 0);
782 error (_("Fork failed"));
783 #endif /* Can fork. */
787 edit_command (char *arg
, int from_tty
)
789 struct symtabs_and_lines sals
;
790 struct symtab_and_line sal
;
796 /* Pull in the current default source line if necessary. */
799 set_default_source_symtab_and_line ();
800 sal
= get_current_source_symtab_and_line ();
803 /* Bare "edit" edits file with present line. */
808 error (_("No default source file yet."));
809 sal
.line
+= get_lines_to_list () / 2;
813 struct cleanup
*cleanup
;
814 struct event_location
*location
;
817 /* Now should only be one argument -- decode it in SAL. */
819 location
= string_to_event_location (&arg1
, current_language
);
820 cleanup
= make_cleanup_delete_event_location (location
);
821 sals
= decode_line_1 (location
, DECODE_LINE_LIST_MODE
, NULL
, NULL
, 0);
827 do_cleanups (cleanup
);
832 ambiguous_line_spec (&sals
);
834 do_cleanups (cleanup
);
842 error (_("Junk at end of line specification."));
844 /* If line was specified by address, first print exactly which
845 line, and which file. In this case, sal.symtab == 0 means
846 address is outside of all known source files, not that user
847 failed to give a filename. */
850 struct gdbarch
*gdbarch
;
853 error (_("No source file for address %s."),
854 paddress (get_current_arch (), sal
.pc
));
856 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
857 sym
= find_pc_function (sal
.pc
);
859 printf_filtered ("%s is in %s (%s:%d).\n",
860 paddress (gdbarch
, sal
.pc
),
861 SYMBOL_PRINT_NAME (sym
),
862 symtab_to_filename_for_display (sal
.symtab
),
865 printf_filtered ("%s is at %s:%d.\n",
866 paddress (gdbarch
, sal
.pc
),
867 symtab_to_filename_for_display (sal
.symtab
),
871 /* If what was given does not imply a symtab, it must be an
872 undebuggable symbol which means no source code. */
875 error (_("No line number known for %s."), arg
);
876 do_cleanups (cleanup
);
879 if ((editor
= (char *) getenv ("EDITOR")) == NULL
)
882 fn
= symtab_to_fullname (sal
.symtab
);
884 /* Quote the file name, in case it has whitespace or other special
886 p
= xstrprintf ("%s +%d \"%s\"", editor
, sal
.line
, fn
);
887 shell_escape (p
, from_tty
);
892 list_command (char *arg
, int from_tty
)
894 struct symtabs_and_lines sals
, sals_end
;
895 struct symtab_and_line sal
= { 0 };
896 struct symtab_and_line sal_end
= { 0 };
897 struct symtab_and_line cursal
= { 0 };
905 struct cleanup
*cleanup
;
907 cleanup
= make_cleanup (null_cleanup
, NULL
);
909 /* Pull in the current default source line if necessary. */
910 if (arg
== NULL
|| ((arg
[0] == '+' || arg
[0] == '-') && arg
[1] == '\0'))
912 set_default_source_symtab_and_line ();
913 cursal
= get_current_source_symtab_and_line ();
915 /* If this is the first "list" since we've set the current
916 source line, center the listing around that line. */
917 if (get_first_line_listed () == 0)
921 first
= max (cursal
.line
- get_lines_to_list () / 2, 1);
923 /* A small special case --- if listing backwards, and we
924 should list only one line, list the preceding line,
925 instead of the exact line we've just shown after e.g.,
926 stopping for a breakpoint. */
927 if (arg
!= NULL
&& arg
[0] == '-'
928 && get_lines_to_list () == 1 && first
> 1)
931 print_source_lines (cursal
.symtab
, first
,
932 first
+ get_lines_to_list (), 0);
935 /* "l" or "l +" lists next ten lines. */
936 else if (arg
== NULL
|| arg
[0] == '+')
937 print_source_lines (cursal
.symtab
, cursal
.line
,
938 cursal
.line
+ get_lines_to_list (), 0);
940 /* "l -" lists previous ten lines, the ones before the ten just
942 else if (arg
[0] == '-')
944 if (get_first_line_listed () == 1)
945 error (_("Already at the start of %s."),
946 symtab_to_filename_for_display (cursal
.symtab
));
947 print_source_lines (cursal
.symtab
,
948 max (get_first_line_listed ()
949 - get_lines_to_list (), 1),
950 get_first_line_listed (), 0);
956 /* Now if there is only one argument, decode it in SAL
958 If there are two arguments, decode them in SAL and SAL_END
959 and clear NO_END; however, if one of the arguments is blank,
960 set DUMMY_BEG or DUMMY_END to record that fact. */
962 if (!have_full_symbols () && !have_partial_symbols ())
963 error (_("No symbol table is loaded. Use the \"file\" command."));
970 struct event_location
*location
;
972 location
= string_to_event_location (&arg1
, current_language
);
973 make_cleanup_delete_event_location (location
);
974 sals
= decode_line_1 (location
, DECODE_LINE_LIST_MODE
, NULL
, NULL
, 0);
980 do_cleanups (cleanup
);
985 ambiguous_line_spec (&sals
);
987 do_cleanups (cleanup
);
995 /* Record whether the BEG arg is all digits. */
997 for (p
= arg
; p
!= arg1
&& *p
>= '0' && *p
<= '9'; p
++);
998 linenum_beg
= (p
== arg1
);
1000 while (*arg1
== ' ' || *arg1
== '\t')
1006 while (*arg1
== ' ' || *arg1
== '\t')
1012 struct event_location
*location
;
1014 location
= string_to_event_location (&arg1
, current_language
);
1015 make_cleanup_delete_event_location (location
);
1017 sals_end
= decode_line_1 (location
,
1018 DECODE_LINE_LIST_MODE
, NULL
, NULL
, 0);
1020 sals_end
= decode_line_1 (location
, DECODE_LINE_LIST_MODE
,
1021 NULL
, sal
.symtab
, sal
.line
);
1023 filter_sals (&sals_end
);
1024 if (sals_end
.nelts
== 0)
1026 do_cleanups (cleanup
);
1029 if (sals_end
.nelts
> 1)
1031 ambiguous_line_spec (&sals_end
);
1032 xfree (sals_end
.sals
);
1033 do_cleanups (cleanup
);
1036 sal_end
= sals_end
.sals
[0];
1037 xfree (sals_end
.sals
);
1042 error (_("Junk at end of line specification."));
1044 if (!no_end
&& !dummy_beg
&& !dummy_end
1045 && sal
.symtab
!= sal_end
.symtab
)
1046 error (_("Specified start and end are in different files."));
1047 if (dummy_beg
&& dummy_end
)
1048 error (_("Two empty args do not say what lines to list."));
1050 /* If line was specified by address,
1051 first print exactly which line, and which file.
1053 In this case, sal.symtab == 0 means address is outside of all
1054 known source files, not that user failed to give a filename. */
1057 struct gdbarch
*gdbarch
;
1059 if (sal
.symtab
== 0)
1060 error (_("No source file for address %s."),
1061 paddress (get_current_arch (), sal
.pc
));
1063 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
1064 sym
= find_pc_function (sal
.pc
);
1066 printf_filtered ("%s is in %s (%s:%d).\n",
1067 paddress (gdbarch
, sal
.pc
),
1068 SYMBOL_PRINT_NAME (sym
),
1069 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1071 printf_filtered ("%s is at %s:%d.\n",
1072 paddress (gdbarch
, sal
.pc
),
1073 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1076 /* If line was not specified by just a line number, and it does not
1077 imply a symtab, it must be an undebuggable symbol which means no
1080 if (!linenum_beg
&& sal
.symtab
== 0)
1081 error (_("No line number known for %s."), arg
);
1083 /* If this command is repeated with RET,
1084 turn it into the no-arg variant. */
1089 if (dummy_beg
&& sal_end
.symtab
== 0)
1090 error (_("No default source file yet. Do \"help list\"."));
1092 print_source_lines (sal_end
.symtab
,
1093 max (sal_end
.line
- (get_lines_to_list () - 1), 1),
1094 sal_end
.line
+ 1, 0);
1095 else if (sal
.symtab
== 0)
1096 error (_("No default source file yet. Do \"help list\"."));
1099 int first_line
= sal
.line
- get_lines_to_list () / 2;
1101 if (first_line
< 1) first_line
= 1;
1103 print_source_lines (sal
.symtab
,
1105 first_line
+ get_lines_to_list (),
1109 print_source_lines (sal
.symtab
, sal
.line
,
1111 ? sal
.line
+ get_lines_to_list ()
1112 : sal_end
.line
+ 1),
1114 do_cleanups (cleanup
);
1117 /* Subroutine of disassemble_command to simplify it.
1118 Perform the disassembly.
1119 NAME is the name of the function if known, or NULL.
1120 [LOW,HIGH) are the range of addresses to disassemble.
1121 MIXED is non-zero to print source with the assembler. */
1124 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
1125 CORE_ADDR low
, CORE_ADDR high
, int flags
)
1128 if (!tui_is_window_visible (DISASSEM_WIN
))
1131 printf_filtered ("Dump of assembler code ");
1133 printf_filtered ("for function %s:\n", name
);
1135 printf_filtered ("from %s to %s:\n",
1136 paddress (gdbarch
, low
), paddress (gdbarch
, high
));
1138 /* Dump the specified range. */
1139 gdb_disassembly (gdbarch
, current_uiout
, 0, flags
, -1, low
, high
);
1141 printf_filtered ("End of assembler dump.\n");
1142 gdb_flush (gdb_stdout
);
1147 tui_show_assembly (gdbarch
, low
);
1152 /* Subroutine of disassemble_command to simplify it.
1153 Print a disassembly of the current function according to FLAGS. */
1156 disassemble_current_function (int flags
)
1158 struct frame_info
*frame
;
1159 struct gdbarch
*gdbarch
;
1160 CORE_ADDR low
, high
, pc
;
1163 frame
= get_selected_frame (_("No frame selected."));
1164 gdbarch
= get_frame_arch (frame
);
1165 pc
= get_frame_address_in_block (frame
);
1166 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1167 error (_("No function contains program counter for selected frame."));
1169 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1172 /* FIXME: cagney/2004-02-07: This should be an observer. */
1173 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1175 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1177 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1180 /* Dump a specified section of assembly code.
1184 - dump the assembly code for the function of the current pc
1185 disassemble [/mrs] addr
1186 - dump the assembly code for the function at ADDR
1187 disassemble [/mrs] low,high
1188 disassemble [/mrs] low,+length
1189 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1191 A /m modifier will include source code with the assembly in a
1192 "source centric" view. This view lists only the file of the first insn,
1193 even if other source files are involved (e.g., inlined functions), and
1194 the output is in source order, even with optimized code. This view is
1195 considered deprecated as it hasn't been useful in practice.
1197 A /r modifier will include raw instructions in hex with the assembly.
1199 A /s modifier will include source code with the assembly, like /m, with
1200 two important differences:
1201 1) The output is still in pc address order.
1202 2) File names and contents for all relevant source files are displayed. */
1205 disassemble_command (char *arg
, int from_tty
)
1207 struct gdbarch
*gdbarch
= get_current_arch ();
1208 CORE_ADDR low
, high
;
1223 error (_("Missing modifier."));
1225 while (*p
&& ! isspace (*p
))
1230 flags
|= DISASSEMBLY_SOURCE_DEPRECATED
;
1233 flags
|= DISASSEMBLY_RAW_INSN
;
1236 flags
|= DISASSEMBLY_SOURCE
;
1239 error (_("Invalid disassembly modifier."));
1243 p
= skip_spaces_const (p
);
1246 if ((flags
& (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1247 == (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1248 error (_("Cannot specify both /m and /s."));
1252 flags
|= DISASSEMBLY_OMIT_FNAME
;
1253 disassemble_current_function (flags
);
1257 pc
= value_as_address (parse_to_comma_and_eval (&p
));
1263 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1264 error (_("No function contains specified address."));
1266 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1269 /* FIXME: cagney/2004-02-07: This should be an observer. */
1270 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1272 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1273 flags
|= DISASSEMBLY_OMIT_FNAME
;
1277 /* Two arguments. */
1280 p
= skip_spaces_const (p
);
1286 high
= parse_and_eval_address (p
);
1291 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1295 make_command (char *arg
, int from_tty
)
1303 p
= (char *) xmalloc (sizeof ("make ") + strlen (arg
));
1304 strcpy (p
, "make ");
1305 strcpy (p
+ sizeof ("make ") - 1, arg
);
1308 shell_escape (p
, from_tty
);
1312 show_user (char *args
, int from_tty
)
1314 struct cmd_list_element
*c
;
1315 extern struct cmd_list_element
*cmdlist
;
1319 const char *comname
= args
;
1321 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1322 if (!cli_user_command_p (c
))
1323 error (_("Not a user command."));
1324 show_user_1 (c
, "", args
, gdb_stdout
);
1328 for (c
= cmdlist
; c
; c
= c
->next
)
1330 if (cli_user_command_p (c
) || c
->prefixlist
!= NULL
)
1331 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1336 /* Search through names of commands and documentations for a certain
1337 regular expression. */
1340 apropos_command (char *searchstr
, int from_tty
)
1345 if (searchstr
== NULL
)
1346 error (_("REGEXP string is empty"));
1348 code
= regcomp (&pattern
, searchstr
, REG_ICASE
);
1351 struct cleanup
*cleanups
;
1353 cleanups
= make_regfree_cleanup (&pattern
);
1354 apropos_cmd (gdb_stdout
, cmdlist
, &pattern
, "");
1355 do_cleanups (cleanups
);
1359 char *err
= get_regcomp_error (code
, &pattern
);
1361 make_cleanup (xfree
, err
);
1362 error (_("Error in regular expression: %s"), err
);
1366 /* Subroutine of alias_command to simplify it.
1367 Return the first N elements of ARGV flattened back to a string
1368 with a space separating each element.
1369 ARGV may not be NULL.
1370 This does not take care of quoting elements in case they contain spaces
1374 argv_to_dyn_string (char **argv
, int n
)
1377 dyn_string_t result
= dyn_string_new (10);
1379 gdb_assert (argv
!= NULL
);
1380 gdb_assert (n
>= 0 && n
<= countargv (argv
));
1382 for (i
= 0; i
< n
; ++i
)
1385 dyn_string_append_char (result
, ' ');
1386 dyn_string_append_cstr (result
, argv
[i
]);
1392 /* Subroutine of alias_command to simplify it.
1393 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1396 valid_command_p (const char *command
)
1398 struct cmd_list_element
*c
;
1400 c
= lookup_cmd_1 (& command
, cmdlist
, NULL
, 1);
1402 if (c
== NULL
|| c
== (struct cmd_list_element
*) -1)
1405 /* This is the slightly tricky part.
1406 lookup_cmd_1 will return a pointer to the last part of COMMAND
1407 to match, leaving COMMAND pointing at the remainder. */
1408 while (*command
== ' ' || *command
== '\t')
1410 return *command
== '\0';
1413 /* Called when "alias" was incorrectly used. */
1416 alias_usage_error (void)
1418 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1421 /* Make an alias of an existing command. */
1424 alias_command (char *args
, int from_tty
)
1426 int i
, alias_argc
, command_argc
;
1427 int abbrev_flag
= 0;
1428 char *args2
, *equals
, *alias
, *command
;
1429 char **alias_argv
, **command_argv
;
1430 dyn_string_t alias_dyn_string
, command_dyn_string
;
1431 struct cleanup
*cleanup
;
1433 if (args
== NULL
|| strchr (args
, '=') == NULL
)
1434 alias_usage_error ();
1436 args2
= xstrdup (args
);
1437 cleanup
= make_cleanup (xfree
, args2
);
1438 equals
= strchr (args2
, '=');
1440 alias_argv
= gdb_buildargv (args2
);
1441 make_cleanup_freeargv (alias_argv
);
1442 command_argv
= gdb_buildargv (equals
+ 1);
1443 make_cleanup_freeargv (command_argv
);
1445 for (i
= 0; alias_argv
[i
] != NULL
; )
1447 if (strcmp (alias_argv
[i
], "-a") == 0)
1452 else if (strcmp (alias_argv
[i
], "--") == 0)
1461 if (alias_argv
[0] == NULL
|| command_argv
[0] == NULL
1462 || *alias_argv
[0] == '\0' || *command_argv
[0] == '\0')
1463 alias_usage_error ();
1465 for (i
= 0; alias_argv
[i
] != NULL
; ++i
)
1467 if (! valid_user_defined_cmd_name_p (alias_argv
[i
]))
1470 error (_("Invalid command name: %s"), alias_argv
[i
]);
1472 error (_("Invalid command element name: %s"), alias_argv
[i
]);
1476 alias_argc
= countargv (alias_argv
);
1477 command_argc
= countargv (command_argv
);
1479 /* COMMAND must exist.
1480 Reconstruct the command to remove any extraneous spaces,
1481 for better error messages. */
1482 command_dyn_string
= argv_to_dyn_string (command_argv
, command_argc
);
1483 make_cleanup_dyn_string_delete (command_dyn_string
);
1484 command
= dyn_string_buf (command_dyn_string
);
1485 if (! valid_command_p (command
))
1486 error (_("Invalid command to alias to: %s"), command
);
1488 /* ALIAS must not exist. */
1489 alias_dyn_string
= argv_to_dyn_string (alias_argv
, alias_argc
);
1490 make_cleanup_dyn_string_delete (alias_dyn_string
);
1491 alias
= dyn_string_buf (alias_dyn_string
);
1492 if (valid_command_p (alias
))
1493 error (_("Alias already exists: %s"), alias
);
1495 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1496 Example: alias spe = set print elements
1498 Otherwise ALIAS and COMMAND must have the same number of words,
1499 and every word except the last must match; and the last word of
1500 ALIAS is made an alias of the last word of COMMAND.
1501 Example: alias set print elms = set pr elem
1502 Note that unambiguous abbreviations are allowed. */
1504 if (alias_argc
== 1)
1506 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1507 add_com_alias (xstrdup (alias_argv
[0]), command
, class_alias
,
1512 dyn_string_t alias_prefix_dyn_string
, command_prefix_dyn_string
;
1513 const char *alias_prefix
, *command_prefix
;
1514 struct cmd_list_element
*c_alias
, *c_command
;
1516 if (alias_argc
!= command_argc
)
1517 error (_("Mismatched command length between ALIAS and COMMAND."));
1519 /* Create copies of ALIAS and COMMAND without the last word,
1520 and use that to verify the leading elements match. */
1521 alias_prefix_dyn_string
=
1522 argv_to_dyn_string (alias_argv
, alias_argc
- 1);
1523 make_cleanup_dyn_string_delete (alias_prefix_dyn_string
);
1524 command_prefix_dyn_string
=
1525 argv_to_dyn_string (alias_argv
, command_argc
- 1);
1526 make_cleanup_dyn_string_delete (command_prefix_dyn_string
);
1527 alias_prefix
= dyn_string_buf (alias_prefix_dyn_string
);
1528 command_prefix
= dyn_string_buf (command_prefix_dyn_string
);
1530 c_command
= lookup_cmd_1 (& command_prefix
, cmdlist
, NULL
, 1);
1531 /* We've already tried to look up COMMAND. */
1532 gdb_assert (c_command
!= NULL
1533 && c_command
!= (struct cmd_list_element
*) -1);
1534 gdb_assert (c_command
->prefixlist
!= NULL
);
1535 c_alias
= lookup_cmd_1 (& alias_prefix
, cmdlist
, NULL
, 1);
1536 if (c_alias
!= c_command
)
1537 error (_("ALIAS and COMMAND prefixes do not match."));
1539 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1540 add_alias_cmd (xstrdup (alias_argv
[alias_argc
- 1]),
1541 command_argv
[command_argc
- 1],
1542 class_alias
, abbrev_flag
, c_command
->prefixlist
);
1545 do_cleanups (cleanup
);
1548 /* Print a list of files and line numbers which a user may choose from
1549 in order to list a function which was specified ambiguously (as
1550 with `list classname::overloadedfuncname', for example). The
1551 vector in SALS provides the filenames and line numbers. */
1554 ambiguous_line_spec (struct symtabs_and_lines
*sals
)
1558 for (i
= 0; i
< sals
->nelts
; ++i
)
1559 printf_filtered (_("file: \"%s\", line number: %d\n"),
1560 symtab_to_filename_for_display (sals
->sals
[i
].symtab
),
1561 sals
->sals
[i
].line
);
1564 /* Sort function for filter_sals. */
1567 compare_symtabs (const void *a
, const void *b
)
1569 const struct symtab_and_line
*sala
= (const struct symtab_and_line
*) a
;
1570 const struct symtab_and_line
*salb
= (const struct symtab_and_line
*) b
;
1571 const char *dira
= SYMTAB_DIRNAME (sala
->symtab
);
1572 const char *dirb
= SYMTAB_DIRNAME (salb
->symtab
);
1580 else if (dirb
== NULL
)
1587 r
= filename_cmp (dira
, dirb
);
1592 r
= filename_cmp (sala
->symtab
->filename
, salb
->symtab
->filename
);
1596 if (sala
->line
< salb
->line
)
1598 return sala
->line
== salb
->line
? 0 : 1;
1601 /* Remove any SALs that do not match the current program space, or
1602 which appear to be "file:line" duplicates. */
1605 filter_sals (struct symtabs_and_lines
*sals
)
1610 for (i
= 0; i
< sals
->nelts
; ++i
)
1612 if (sals
->sals
[i
].pspace
== current_program_space
1613 && sals
->sals
[i
].symtab
!= NULL
)
1615 sals
->sals
[out
] = sals
->sals
[i
];
1621 qsort (sals
->sals
, sals
->nelts
, sizeof (struct symtab_and_line
),
1626 for (i
= 1; i
< sals
->nelts
; ++i
)
1628 if (compare_symtabs (&sals
->sals
[prev
], &sals
->sals
[i
]))
1630 /* Symtabs differ. */
1631 sals
->sals
[out
] = sals
->sals
[i
];
1637 if (sals
->nelts
== 0)
1647 set_debug (char *arg
, int from_tty
)
1649 printf_unfiltered (_("\"set debug\" must be followed by "
1650 "the name of a debug subcommand.\n"));
1651 help_list (setdebuglist
, "set debug ", all_commands
, gdb_stdout
);
1655 show_debug (char *args
, int from_tty
)
1657 cmd_show_list (showdebuglist
, from_tty
, "");
1661 init_cmd_lists (void)
1663 max_user_call_depth
= 1024;
1667 show_info_verbose (struct ui_file
*file
, int from_tty
,
1668 struct cmd_list_element
*c
,
1672 fprintf_filtered (file
,
1673 _("Verbose printing of informational messages is %s.\n"),
1676 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1680 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1681 struct cmd_list_element
*c
, const char *value
)
1683 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1688 show_remote_debug (struct ui_file
*file
, int from_tty
,
1689 struct cmd_list_element
*c
, const char *value
)
1691 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1696 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1697 struct cmd_list_element
*c
, const char *value
)
1699 fprintf_filtered (file
,
1700 _("Timeout limit to wait for target to respond is %s.\n"),
1705 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1706 struct cmd_list_element
*c
, const char *value
)
1708 fprintf_filtered (file
,
1709 _("The max call depth for user-defined commands is %s.\n"),
1715 initialize_file_ftype _initialize_cli_cmds
;
1718 _initialize_cli_cmds (void)
1720 struct cmd_list_element
*c
;
1722 /* Define the classes of commands.
1723 They will appear in the help list in alphabetical order. */
1725 add_cmd ("internals", class_maintenance
, NULL
, _("\
1726 Maintenance commands.\n\
1727 Some gdb commands are provided just for use by gdb maintainers.\n\
1728 These commands are subject to frequent change, and may not be as\n\
1729 well documented as user commands."),
1731 add_cmd ("obscure", class_obscure
, NULL
, _("Obscure features."), &cmdlist
);
1732 add_cmd ("aliases", class_alias
, NULL
,
1733 _("Aliases of other commands."), &cmdlist
);
1734 add_cmd ("user-defined", class_user
, NULL
, _("\
1735 User-defined commands.\n\
1736 The commands in this class are those defined by the user.\n\
1737 Use the \"define\" command to define a command."), &cmdlist
);
1738 add_cmd ("support", class_support
, NULL
, _("Support facilities."), &cmdlist
);
1740 add_cmd ("status", class_info
, NULL
, _("Status inquiries."), &cmdlist
);
1741 add_cmd ("files", class_files
, NULL
, _("Specifying and examining files."),
1743 add_cmd ("breakpoints", class_breakpoint
, NULL
,
1744 _("Making program stop at certain points."), &cmdlist
);
1745 add_cmd ("data", class_vars
, NULL
, _("Examining data."), &cmdlist
);
1746 add_cmd ("stack", class_stack
, NULL
, _("\
1747 Examining the stack.\n\
1748 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1749 counting from zero for the innermost (currently executing) frame.\n\n\
1750 At any time gdb identifies one frame as the \"selected\" frame.\n\
1751 Variable lookups are done with respect to the selected frame.\n\
1752 When the program being debugged stops, gdb selects the innermost frame.\n\
1753 The commands below can be used to select other frames by number or address."),
1755 add_cmd ("running", class_run
, NULL
, _("Running the program."), &cmdlist
);
1757 /* Define general commands. */
1759 add_com ("pwd", class_files
, pwd_command
, _("\
1760 Print working directory. This is used for your program as well."));
1762 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1763 Set working directory to DIR for debugger and program being debugged.\n\
1764 The change does not take effect for the program being debugged\n\
1765 until the next time it is started."), &cmdlist
);
1766 set_cmd_completer (c
, filename_completer
);
1768 add_com ("echo", class_support
, echo_command
, _("\
1769 Print a constant string. Give string as argument.\n\
1770 C escape sequences may be used in the argument.\n\
1771 No newline is added at the end of the argument;\n\
1772 use \"\\n\" if you want a newline to be printed.\n\
1773 Since leading and trailing whitespace are ignored in command arguments,\n\
1774 if you want to print some you must use \"\\\" before leading whitespace\n\
1775 to be printed or after trailing whitespace."));
1777 add_setshow_enum_cmd ("script-extension", class_support
,
1778 script_ext_enums
, &script_ext_mode
, _("\
1779 Set mode for script filename extension recognition."), _("\
1780 Show mode for script filename extension recognition."), _("\
1781 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1782 soft == evaluate script according to filename extension, fallback to GDB script"
1784 strict == evaluate script according to filename extension, error if not supported"
1787 show_script_ext_mode
,
1788 &setlist
, &showlist
);
1790 add_com ("quit", class_support
, quit_command
, _("\
1792 Usage: quit [EXPR]\n\
1793 The optional expression EXPR, if present, is evaluated and the result\n\
1794 used as GDB's exit code. The default is zero."));
1795 c
= add_com ("help", class_support
, help_command
,
1796 _("Print list of commands."));
1797 set_cmd_completer (c
, command_completer
);
1798 add_com_alias ("q", "quit", class_support
, 1);
1799 add_com_alias ("h", "help", class_support
, 1);
1801 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1802 Set verbosity."), _("\
1803 Show verbosity."), NULL
,
1806 &setlist
, &showlist
);
1808 add_prefix_cmd ("history", class_support
, set_history
,
1809 _("Generic command for setting command history parameters."),
1810 &sethistlist
, "set history ", 0, &setlist
);
1811 add_prefix_cmd ("history", class_support
, show_history
,
1812 _("Generic command for showing command history parameters."),
1813 &showhistlist
, "show history ", 0, &showlist
);
1815 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1816 Set history expansion on command input."), _("\
1817 Show history expansion on command input."), _("\
1818 Without an argument, history expansion is enabled."),
1820 show_history_expansion_p
,
1821 &sethistlist
, &showhistlist
);
1823 add_prefix_cmd ("info", class_info
, info_command
, _("\
1824 Generic command for showing things about the program being debugged."),
1825 &infolist
, "info ", 0, &cmdlist
);
1826 add_com_alias ("i", "info", class_info
, 1);
1827 add_com_alias ("inf", "info", class_info
, 1);
1829 add_com ("complete", class_obscure
, complete_command
,
1830 _("List the completions for the rest of the line as a command."));
1832 add_prefix_cmd ("show", class_info
, show_command
, _("\
1833 Generic command for showing things about the debugger."),
1834 &showlist
, "show ", 0, &cmdlist
);
1835 /* Another way to get at the same thing. */
1836 add_info ("set", show_command
, _("Show all GDB settings."));
1838 add_cmd ("commands", no_set_class
, show_commands
, _("\
1839 Show the history of commands you typed.\n\
1840 You can supply a command number to start with, or a `+' to start after\n\
1841 the previous command number shown."),
1844 add_cmd ("version", no_set_class
, show_version
,
1845 _("Show what version of GDB this is."), &showlist
);
1847 add_cmd ("configuration", no_set_class
, show_configuration
,
1848 _("Show how GDB was configured at build time."), &showlist
);
1850 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1851 Set debugging of remote protocol."), _("\
1852 Show debugging of remote protocol."), _("\
1853 When enabled, each packet sent or received with the remote target\n\
1857 &setdebuglist
, &showdebuglist
);
1859 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class
,
1860 &remote_timeout
, _("\
1861 Set timeout limit to wait for target to respond."), _("\
1862 Show timeout limit to wait for target to respond."), _("\
1863 This value is used to set the time limit for gdb to wait for a response\n\
1866 show_remote_timeout
,
1867 &setlist
, &showlist
);
1869 add_prefix_cmd ("debug", no_class
, set_debug
,
1870 _("Generic command for setting gdb debugging flags"),
1871 &setdebuglist
, "set debug ", 0, &setlist
);
1873 add_prefix_cmd ("debug", no_class
, show_debug
,
1874 _("Generic command for showing gdb debugging flags"),
1875 &showdebuglist
, "show debug ", 0, &showlist
);
1877 c
= add_com ("shell", class_support
, shell_escape
, _("\
1878 Execute the rest of the line as a shell command.\n\
1879 With no arguments, run an inferior shell."));
1880 set_cmd_completer (c
, filename_completer
);
1882 c
= add_com ("edit", class_files
, edit_command
, _("\
1883 Edit specified file or function.\n\
1884 With no argument, edits file containing most recent line listed.\n\
1885 Editing targets can be specified in these ways:\n\
1886 FILE:LINENUM, to edit at that line in that file,\n\
1887 FUNCTION, to edit at the beginning of that function,\n\
1888 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1889 *ADDRESS, to edit at the line containing that address.\n\
1890 Uses EDITOR environment variable contents as editor (or ex as default)."));
1892 c
->completer
= location_completer
;
1894 add_com ("list", class_files
, list_command
, _("\
1895 List specified function or line.\n\
1896 With no argument, lists ten more lines after or around previous listing.\n\
1897 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1898 One argument specifies a line, and ten lines are listed around that line.\n\
1899 Two arguments with comma between specify starting and ending lines to list.\n\
1900 Lines can be specified in these ways:\n\
1901 LINENUM, to list around that line in current file,\n\
1902 FILE:LINENUM, to list around that line in that file,\n\
1903 FUNCTION, to list around beginning of that function,\n\
1904 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1905 *ADDRESS, to list around the line containing that address.\n\
1906 With two args, if one is empty, it stands for ten lines away from\n\
1909 By default, when a single location is given, display ten lines.\n\
1910 This can be changed using \"set listsize\", and the current value\n\
1911 can be shown using \"show listsize\"."));
1913 add_com_alias ("l", "list", class_files
, 1);
1916 add_com_alias ("file", "list", class_files
, 1);
1918 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1919 Disassemble a specified section of memory.\n\
1920 Default is the function surrounding the pc of the selected frame.\n\
1922 With a /m modifier, source lines are included (if available).\n\
1923 This view is \"source centric\": the output is in source line order,\n\
1924 regardless of any optimization that is present. Only the main source file\n\
1925 is displayed, not those of, e.g., any inlined functions.\n\
1926 This modifier hasn't proved useful in practice and is deprecated\n\
1929 With a /s modifier, source lines are included (if available).\n\
1930 This differs from /m in two important respects:\n\
1931 - the output is still in pc address order, and\n\
1932 - file names and contents for all relevant source files are displayed.\n\
1934 With a /r modifier, raw instructions in hex are included.\n\
1936 With a single argument, the function surrounding that address is dumped.\n\
1937 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1938 in the form of \"start,end\", or \"start,+length\".\n\
1940 Note that the address is interpreted as an expression, not as a location\n\
1941 like in the \"break\" command.\n\
1942 So, for example, if you want to disassemble function bar in file foo.c\n\
1943 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1944 set_cmd_completer (c
, location_completer
);
1946 add_com_alias ("!", "shell", class_support
, 0);
1948 c
= add_com ("make", class_support
, make_command
, _("\
1949 Run the ``make'' program using the rest of the line as arguments."));
1950 set_cmd_completer (c
, filename_completer
);
1951 add_cmd ("user", no_class
, show_user
, _("\
1952 Show definitions of non-python/scheme user defined commands.\n\
1953 Argument is the name of the user defined command.\n\
1954 With no argument, show definitions of all user defined commands."), &showlist
);
1955 add_com ("apropos", class_support
, apropos_command
,
1956 _("Search for commands matching a REGEXP"));
1958 add_setshow_uinteger_cmd ("max-user-call-depth", no_class
,
1959 &max_user_call_depth
, _("\
1960 Set the max call depth for non-python/scheme user-defined commands."), _("\
1961 Show the max call depth for non-python/scheme user-defined commands."), NULL
,
1963 show_max_user_call_depth
,
1964 &setlist
, &showlist
);
1966 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1967 Set tracing of GDB CLI commands."), _("\
1968 Show state of GDB CLI command tracing."), _("\
1969 When 'on', each command is displayed as it is executed."),
1972 &setlist
, &showlist
);
1974 c
= add_com ("alias", class_support
, alias_command
, _("\
1975 Define a new command that is an alias of an existing command.\n\
1976 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1977 ALIAS is the name of the alias command to create.\n\
1978 COMMAND is the command being aliased to.\n\
1979 If \"-a\" is specified, the command is an abbreviation,\n\
1980 and will not appear in help command list output.\n\
1983 Make \"spe\" an alias of \"set print elements\":\n\
1984 alias spe = set print elements\n\
1985 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1986 alias -a set print elms = set print elements"));
1990 init_cli_cmds (void)
1992 struct cmd_list_element
*c
;
1993 char *source_help_text
;
1995 source_help_text
= xstrprintf (_("\
1996 Read commands from a file named FILE.\n\
1998 Usage: source [-s] [-v] FILE\n\
1999 -s: search for the script in the source search path,\n\
2000 even if FILE contains directories.\n\
2001 -v: each command in FILE is echoed as it is executed.\n\
2003 Note that the file \"%s\" is read automatically in this way\n\
2004 when GDB is started."), gdbinit
);
2005 c
= add_cmd ("source", class_support
, source_command
,
2006 source_help_text
, &cmdlist
);
2007 set_cmd_completer (c
, filename_completer
);