3 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009
4 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
22 #include "arch-utils.h"
23 #include "readline/readline.h"
24 #include "readline/tilde.h"
25 #include "completer.h"
26 #include "target.h" /* For baud_rate, remote_debug and remote_timeout */
27 #include "gdb_wait.h" /* For shell escape implementation */
28 #include "gdb_regex.h" /* Used by apropos_command */
29 #include "gdb_string.h"
30 #include "gdb_vfork.h"
32 #include "expression.h"
36 #include "filenames.h" /* for DOSish file names */
44 #include "cli/cli-decode.h"
45 #include "cli/cli-script.h"
46 #include "cli/cli-setshow.h"
47 #include "cli/cli-cmds.h"
50 #include "tui/tui.h" /* For tui_active et.al. */
55 /* Prototypes for local command functions */
57 static void complete_command (char *, int);
59 static void echo_command (char *, int);
61 static void pwd_command (char *, int);
63 static void show_version (char *, int);
65 static void help_command (char *, int);
67 static void show_command (char *, int);
69 static void info_command (char *, int);
71 static void show_debug (char *, int);
73 static void set_debug (char *, int);
75 static void show_user (char *, int);
77 static void make_command (char *, int);
79 static void shell_escape (char *, int);
81 static void edit_command (char *, int);
83 static void list_command (char *, int);
85 void apropos_command (char *, int);
87 /* Prototypes for local utility functions */
89 static void ambiguous_line_spec (struct symtabs_and_lines
*);
91 /* Limit the call depth of user-defined commands */
92 int max_user_call_depth
;
94 /* Define all cmd_list_elements. */
96 /* Chain containing all defined commands. */
98 struct cmd_list_element
*cmdlist
;
100 /* Chain containing all defined info subcommands. */
102 struct cmd_list_element
*infolist
;
104 /* Chain containing all defined enable subcommands. */
106 struct cmd_list_element
*enablelist
;
108 /* Chain containing all defined disable subcommands. */
110 struct cmd_list_element
*disablelist
;
112 /* Chain containing all defined toggle subcommands. */
114 struct cmd_list_element
*togglelist
;
116 /* Chain containing all defined stop subcommands. */
118 struct cmd_list_element
*stoplist
;
120 /* Chain containing all defined delete subcommands. */
122 struct cmd_list_element
*deletelist
;
124 /* Chain containing all defined detach subcommands. */
126 struct cmd_list_element
*detachlist
;
128 /* Chain containing all defined "enable breakpoint" subcommands. */
130 struct cmd_list_element
*enablebreaklist
;
132 /* Chain containing all defined set subcommands */
134 struct cmd_list_element
*setlist
;
136 /* Chain containing all defined unset subcommands */
138 struct cmd_list_element
*unsetlist
;
140 /* Chain containing all defined show subcommands. */
142 struct cmd_list_element
*showlist
;
144 /* Chain containing all defined \"set history\". */
146 struct cmd_list_element
*sethistlist
;
148 /* Chain containing all defined \"show history\". */
150 struct cmd_list_element
*showhistlist
;
152 /* Chain containing all defined \"unset history\". */
154 struct cmd_list_element
*unsethistlist
;
156 /* Chain containing all defined maintenance subcommands. */
158 struct cmd_list_element
*maintenancelist
;
160 /* Chain containing all defined "maintenance info" subcommands. */
162 struct cmd_list_element
*maintenanceinfolist
;
164 /* Chain containing all defined "maintenance print" subcommands. */
166 struct cmd_list_element
*maintenanceprintlist
;
168 struct cmd_list_element
*setprintlist
;
170 struct cmd_list_element
*showprintlist
;
172 struct cmd_list_element
*setdebuglist
;
174 struct cmd_list_element
*showdebuglist
;
176 struct cmd_list_element
*setchecklist
;
178 struct cmd_list_element
*showchecklist
;
180 /* Command tracing state. */
182 int source_verbose
= 0;
183 int trace_commands
= 0;
185 /* Utility used everywhere when at least one argument is needed and
189 error_no_arg (char *why
)
191 error (_("Argument required (%s)."), why
);
194 /* The "info" command is defined as a prefix, with allow_unknown = 0.
195 Therefore, its own definition is called only for "info" with no args. */
198 info_command (char *arg
, int from_tty
)
200 printf_unfiltered (_("\"info\" must be followed by the name of an info command.\n"));
201 help_list (infolist
, "info ", -1, gdb_stdout
);
204 /* The "show" command with no arguments shows all the settings. */
207 show_command (char *arg
, int from_tty
)
209 cmd_show_list (showlist
, from_tty
, "");
212 /* Provide documentation on command or list given by COMMAND. FROM_TTY
216 help_command (char *command
, int from_tty
)
218 help_cmd (command
, gdb_stdout
);
221 /* String compare function for qsort. */
223 compare_strings (const void *arg1
, const void *arg2
)
225 const char **s1
= (const char **) arg1
;
226 const char **s2
= (const char **) arg2
;
227 return strcmp (*s1
, *s2
);
230 /* The "complete" command is used by Emacs to implement completion. */
233 complete_command (char *arg
, int from_tty
)
237 char **completions
, *point
, *arg_prefix
;
243 argpoint
= strlen (arg
);
245 /* complete_line assumes that its first argument is somewhere within,
246 and except for filenames at the beginning of, the word to be completed.
247 The following crude imitation of readline's word-breaking tries to
249 point
= arg
+ argpoint
;
252 if (strchr (rl_completer_word_break_characters
, point
[-1]) != 0)
257 arg_prefix
= alloca (point
- arg
+ 1);
258 memcpy (arg_prefix
, arg
, point
- arg
);
259 arg_prefix
[point
- arg
] = 0;
261 completions
= complete_line (point
, arg
, argpoint
);
267 for (size
= 0; completions
[size
]; ++size
)
269 qsort (completions
, size
, sizeof (char *), compare_strings
);
271 /* We do extra processing here since we only want to print each
277 printf_unfiltered ("%s%s\n", arg_prefix
, completions
[item
]);
278 next_item
= item
+ 1;
279 while (next_item
< size
280 && ! strcmp (completions
[item
], completions
[next_item
]))
282 xfree (completions
[next_item
]);
286 xfree (completions
[item
]);
295 is_complete_command (struct cmd_list_element
*c
)
297 return cmd_cfunc_eq (c
, complete_command
);
301 show_version (char *args
, int from_tty
)
304 print_gdb_version (gdb_stdout
);
305 printf_filtered ("\n");
309 /* Handle the quit command. */
312 quit_command (char *args
, int from_tty
)
314 if (!quit_confirm ())
315 error (_("Not confirmed."));
316 quit_force (args
, from_tty
);
320 pwd_command (char *args
, int from_tty
)
323 error (_("The \"pwd\" command does not take an argument: %s"), args
);
324 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
325 error (_("Error finding name of working directory: %s"),
326 safe_strerror (errno
));
328 if (strcmp (gdb_dirbuf
, current_directory
) != 0)
329 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
330 current_directory
, gdb_dirbuf
);
332 printf_unfiltered (_("Working directory %s.\n"), current_directory
);
336 cd_command (char *dir
, int from_tty
)
339 /* Found something other than leading repetitions of "/..". */
343 /* If the new directory is absolute, repeat is a no-op; if relative,
344 repeat might be useful but is more likely to be a mistake. */
348 error_no_arg (_("new working directory"));
350 dir
= tilde_expand (dir
);
351 make_cleanup (xfree
, dir
);
354 perror_with_name (dir
);
356 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
357 /* There's too much mess with DOSish names like "d:", "d:.",
358 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
359 simply get the canonicalized name of the current directory. */
360 dir
= getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
));
364 if (IS_DIR_SEPARATOR (dir
[len
- 1]))
366 /* Remove the trailing slash unless this is a root directory
367 (including a drive letter on non-Unix systems). */
368 if (!(len
== 1) /* "/" */
369 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
370 && !(len
== 3 && dir
[1] == ':') /* "d:/" */
376 dir
= savestring (dir
, len
);
377 if (IS_ABSOLUTE_PATH (dir
))
378 current_directory
= dir
;
381 if (IS_DIR_SEPARATOR (current_directory
[strlen (current_directory
) - 1]))
382 current_directory
= concat (current_directory
, dir
, (char *)NULL
);
384 current_directory
= concat (current_directory
, SLASH_STRING
,
389 /* Now simplify any occurrences of `.' and `..' in the pathname. */
392 for (p
= current_directory
; *p
;)
394 if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.'
395 && (p
[2] == 0 || IS_DIR_SEPARATOR (p
[2])))
397 else if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.' && p
[2] == '.'
398 && (p
[3] == 0 || IS_DIR_SEPARATOR (p
[3])))
402 /* Search backwards for the directory just before the "/.."
403 and obliterate it and the "/..". */
405 while (q
!= current_directory
&& !IS_DIR_SEPARATOR (q
[-1]))
408 if (q
== current_directory
)
409 /* current_directory is
410 a relative pathname ("can't happen"--leave it alone). */
414 strcpy (q
- 1, p
+ 3);
419 /* We are dealing with leading repetitions of "/..", for example
420 "/../..", which is the Mach super-root. */
430 forget_cached_source_info ();
433 pwd_command ((char *) 0, 1);
437 source_script (char *file
, int from_tty
)
440 struct cleanup
*old_cleanups
;
441 char *full_pathname
= NULL
;
444 if (file
== NULL
|| *file
== 0)
446 error (_("source command requires file name of file to source."));
449 file
= tilde_expand (file
);
450 old_cleanups
= make_cleanup (xfree
, file
);
452 /* Search for and open 'file' on the search path used for source
453 files. Put the full location in 'full_pathname'. */
454 fd
= openp (source_path
, OPF_TRY_CWD_FIRST
,
455 file
, O_RDONLY
, &full_pathname
);
456 make_cleanup (xfree
, full_pathname
);
458 /* Use the full path name, if it is found. */
459 if (full_pathname
!= NULL
&& fd
!= -1)
461 file
= full_pathname
;
467 perror_with_name (file
);
470 do_cleanups (old_cleanups
);
475 stream
= fdopen (fd
, FOPEN_RT
);
476 script_from_file (stream
, file
);
478 do_cleanups (old_cleanups
);
481 /* Return the source_verbose global variable to its previous state
482 on exit from the source command, by whatever means. */
484 source_verbose_cleanup (void *old_value
)
486 source_verbose
= *(int *)old_value
;
491 source_command (char *args
, int from_tty
)
493 struct cleanup
*old_cleanups
;
495 int *old_source_verbose
= xmalloc (sizeof(int));
497 *old_source_verbose
= source_verbose
;
498 old_cleanups
= make_cleanup (source_verbose_cleanup
, old_source_verbose
);
500 /* -v causes the source command to run in verbose mode.
501 We still have to be able to handle filenames with spaces in a
502 backward compatible way, so buildargv is not appropriate. */
506 /* Make sure leading white space does not break the comparisons. */
507 while (isspace(args
[0]))
510 /* Is -v the first thing in the string? */
511 if (args
[0] == '-' && args
[1] == 'v' && isspace (args
[2]))
515 /* Trim -v and whitespace from the filename. */
517 while (isspace (file
[0]))
522 source_script (file
, from_tty
);
527 echo_command (char *text
, int from_tty
)
533 while ((c
= *p
++) != '\0')
537 /* \ at end of argument is used after spaces
538 so they won't be lost. */
542 c
= parse_escape (&p
);
544 printf_filtered ("%c", c
);
547 printf_filtered ("%c", c
);
550 /* Force this output to appear now. */
552 gdb_flush (gdb_stdout
);
556 shell_escape (char *arg
, int from_tty
)
558 #if defined(CANT_FORK) || \
559 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
560 /* If ARG is NULL, they want an inferior shell, but `system' just
561 reports if the shell is available when passed a NULL arg. */
562 int rc
= system (arg
? arg
: "");
565 arg
= "inferior shell";
569 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", arg
,
570 safe_strerror (errno
));
571 gdb_flush (gdb_stderr
);
575 fprintf_unfiltered (gdb_stderr
, "%s exited with status %d\n", arg
, rc
);
576 gdb_flush (gdb_stderr
);
579 /* Make sure to return to the directory GDB thinks it is, in case the
580 shell command we just ran changed it. */
581 chdir (current_directory
);
583 #else /* Can fork. */
586 if ((pid
= vfork ()) == 0)
588 char *p
, *user_shell
;
590 if ((user_shell
= (char *) getenv ("SHELL")) == NULL
)
591 user_shell
= "/bin/sh";
593 /* Get the name of the shell for arg0 */
594 if ((p
= strrchr (user_shell
, '/')) == NULL
)
597 p
++; /* Get past '/' */
600 execl (user_shell
, p
, (char *) 0);
602 execl (user_shell
, p
, "-c", arg
, (char *) 0);
604 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", user_shell
,
605 safe_strerror (errno
));
606 gdb_flush (gdb_stderr
);
611 while ((rc
= wait (&status
)) != pid
&& rc
!= -1)
614 error (_("Fork failed"));
615 #endif /* Can fork. */
619 edit_command (char *arg
, int from_tty
)
621 struct symtabs_and_lines sals
;
622 struct symtab_and_line sal
;
628 /* Pull in the current default source line if necessary. */
631 set_default_source_symtab_and_line ();
632 sal
= get_current_source_symtab_and_line ();
635 /* bare "edit" edits file with present line. */
640 error (_("No default source file yet."));
641 sal
.line
+= get_lines_to_list () / 2;
646 /* Now should only be one argument -- decode it in SAL. */
649 sals
= decode_line_1 (&arg1
, 0, 0, 0, 0, 0);
658 ambiguous_line_spec (&sals
);
667 error (_("Junk at end of line specification."));
669 /* If line was specified by address,
670 first print exactly which line, and which file.
671 In this case, sal.symtab == 0 means address is outside
672 of all known source files, not that user failed to give a filename. */
676 /* FIXME-32x64--assumes sal.pc fits in long. */
677 error (_("No source file for address %s."),
678 hex_string ((unsigned long) sal
.pc
));
679 sym
= find_pc_function (sal
.pc
);
681 printf_filtered ("%s is in %s (%s:%d).\n", paddress (sal
.pc
),
682 SYMBOL_PRINT_NAME (sym
), sal
.symtab
->filename
,
685 printf_filtered ("%s is at %s:%d.\n", paddress (sal
.pc
),
686 sal
.symtab
->filename
, sal
.line
);
689 /* If what was given does not imply a symtab, it must be an undebuggable
690 symbol which means no source code. */
693 error (_("No line number known for %s."), arg
);
696 if ((editor
= (char *) getenv ("EDITOR")) == NULL
)
699 /* If we don't already know the full absolute file name of the
700 source file, find it now. */
701 if (!sal
.symtab
->fullname
)
703 fn
= symtab_to_fullname (sal
.symtab
);
708 fn
= sal
.symtab
->fullname
;
710 /* Quote the file name, in case it has whitespace or other special
712 p
= xstrprintf ("%s +%d \"%s\"", editor
, sal
.line
, fn
);
713 shell_escape (p
, from_tty
);
718 list_command (char *arg
, int from_tty
)
720 struct symtabs_and_lines sals
, sals_end
;
721 struct symtab_and_line sal
= { 0 };
722 struct symtab_and_line sal_end
= { 0 };
723 struct symtab_and_line cursal
= { 0 };
732 /* Pull in the current default source line if necessary */
733 if (arg
== 0 || arg
[0] == '+' || arg
[0] == '-')
735 set_default_source_symtab_and_line ();
736 cursal
= get_current_source_symtab_and_line ();
739 /* "l" or "l +" lists next ten lines. */
741 if (arg
== 0 || strcmp (arg
, "+") == 0)
743 print_source_lines (cursal
.symtab
, cursal
.line
,
744 cursal
.line
+ get_lines_to_list (), 0);
748 /* "l -" lists previous ten lines, the ones before the ten just listed. */
749 if (strcmp (arg
, "-") == 0)
751 print_source_lines (cursal
.symtab
,
752 max (get_first_line_listed () - get_lines_to_list (), 1),
753 get_first_line_listed (), 0);
757 /* Now if there is only one argument, decode it in SAL
759 If there are two arguments, decode them in SAL and SAL_END
760 and clear NO_END; however, if one of the arguments is blank,
761 set DUMMY_BEG or DUMMY_END to record that fact. */
763 if (!have_full_symbols () && !have_partial_symbols ())
764 error (_("No symbol table is loaded. Use the \"file\" command."));
771 sals
= decode_line_1 (&arg1
, 0, 0, 0, 0, 0);
777 ambiguous_line_spec (&sals
);
786 /* Record whether the BEG arg is all digits. */
788 for (p
= arg
; p
!= arg1
&& *p
>= '0' && *p
<= '9'; p
++);
789 linenum_beg
= (p
== arg1
);
791 while (*arg1
== ' ' || *arg1
== '\t')
797 while (*arg1
== ' ' || *arg1
== '\t')
804 sals_end
= decode_line_1 (&arg1
, 0, 0, 0, 0, 0);
806 sals_end
= decode_line_1 (&arg1
, 0, sal
.symtab
, sal
.line
, 0, 0);
807 if (sals_end
.nelts
== 0)
809 if (sals_end
.nelts
> 1)
811 ambiguous_line_spec (&sals_end
);
812 xfree (sals_end
.sals
);
815 sal_end
= sals_end
.sals
[0];
816 xfree (sals_end
.sals
);
821 error (_("Junk at end of line specification."));
823 if (!no_end
&& !dummy_beg
&& !dummy_end
824 && sal
.symtab
!= sal_end
.symtab
)
825 error (_("Specified start and end are in different files."));
826 if (dummy_beg
&& dummy_end
)
827 error (_("Two empty args do not say what lines to list."));
829 /* if line was specified by address,
830 first print exactly which line, and which file.
831 In this case, sal.symtab == 0 means address is outside
832 of all known source files, not that user failed to give a filename. */
836 /* FIXME-32x64--assumes sal.pc fits in long. */
837 error (_("No source file for address %s."),
838 hex_string ((unsigned long) sal
.pc
));
839 sym
= find_pc_function (sal
.pc
);
841 printf_filtered ("%s is in %s (%s:%d).\n",
842 paddress (sal
.pc
), SYMBOL_PRINT_NAME (sym
),
843 sal
.symtab
->filename
, sal
.line
);
845 printf_filtered ("%s is at %s:%d.\n", paddress (sal
.pc
),
846 sal
.symtab
->filename
, sal
.line
);
849 /* If line was not specified by just a line number,
850 and it does not imply a symtab, it must be an undebuggable symbol
851 which means no source code. */
853 if (!linenum_beg
&& sal
.symtab
== 0)
854 error (_("No line number known for %s."), arg
);
856 /* If this command is repeated with RET,
857 turn it into the no-arg variant. */
862 if (dummy_beg
&& sal_end
.symtab
== 0)
863 error (_("No default source file yet. Do \"help list\"."));
865 print_source_lines (sal_end
.symtab
,
866 max (sal_end
.line
- (get_lines_to_list () - 1), 1),
867 sal_end
.line
+ 1, 0);
868 else if (sal
.symtab
== 0)
869 error (_("No default source file yet. Do \"help list\"."));
872 int first_line
= sal
.line
- get_lines_to_list () / 2;
874 if (first_line
< 1) first_line
= 1;
876 print_source_lines (sal
.symtab
,
878 first_line
+ get_lines_to_list (),
882 print_source_lines (sal
.symtab
, sal
.line
,
884 ? sal
.line
+ get_lines_to_list ()
889 /* Subroutine of disassemble_command to simplify it.
890 Perform the disassembly.
891 NAME is the name of the function if known, or NULL.
892 [LOW,HIGH) are the range of addresses to disassemble.
893 MIXED is non-zero to print source with the assembler. */
896 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
897 CORE_ADDR low
, CORE_ADDR high
, int mixed
)
900 if (!tui_is_window_visible (DISASSEM_WIN
))
903 printf_filtered ("Dump of assembler code ");
905 printf_filtered ("for function %s:\n", name
);
907 printf_filtered ("from %s to %s:\n", paddress (low
), paddress (high
));
909 /* Dump the specified range. */
910 gdb_disassembly (gdbarch
, uiout
, 0, mixed
, -1, low
, high
);
912 printf_filtered ("End of assembler dump.\n");
913 gdb_flush (gdb_stdout
);
918 tui_show_assembly (gdbarch
, low
);
923 /* Subroutine of disassemble_command to simplify it.
924 Print a disassembly of the current function.
925 MIXED is non-zero to print source with the assembler. */
928 disassemble_current_function (int mixed
)
930 struct frame_info
*frame
;
931 struct gdbarch
*gdbarch
;
932 CORE_ADDR low
, high
, pc
;
935 frame
= get_selected_frame (_("No frame selected."));
936 gdbarch
= get_frame_arch (frame
);
937 pc
= get_frame_pc (frame
);
938 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
939 error (_("No function contains program counter for selected frame."));
941 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
944 /* FIXME: cagney/2004-02-07: This should be an observer. */
945 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
947 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
949 print_disassembly (gdbarch
, name
, low
, high
, mixed
);
952 /* Dump a specified section of assembly code.
956 - dump the assembly code for the function of the current pc
957 disassemble [/m] addr
958 - dump the assembly code for the function at ADDR
959 disassemble [/m] low high
960 - dump the assembly code in the range [LOW,HIGH)
962 A /m modifier will include source code with the assembly. */
965 disassemble_command (char *arg
, int from_tty
)
967 struct gdbarch
*gdbarch
= get_current_arch ();
970 CORE_ADDR pc
, pc_masked
;
972 int mixed_source_and_assembly
;
975 mixed_source_and_assembly
= 0;
977 if (arg
&& *arg
== '/')
982 error (_("Missing modifier."));
984 while (*arg
&& ! isspace (*arg
))
989 mixed_source_and_assembly
= 1;
992 error (_("Invalid disassembly modifier."));
996 while (isspace (*arg
))
1000 if (! arg
|| ! *arg
)
1002 disassemble_current_function (mixed_source_and_assembly
);
1006 /* FIXME: 'twould be nice to allow spaces in the expression for the first
1007 arg. Allow comma separater too? */
1009 if (!(space_index
= (char *) strchr (arg
, ' ')))
1012 pc
= parse_and_eval_address (arg
);
1013 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1014 error (_("No function contains specified address."));
1016 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1019 /* FIXME: cagney/2004-02-07: This should be an observer. */
1020 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1022 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1026 /* Two arguments. */
1027 *space_index
= '\0';
1028 low
= parse_and_eval_address (arg
);
1029 high
= parse_and_eval_address (space_index
+ 1);
1032 print_disassembly (gdbarch
, name
, low
, high
, mixed_source_and_assembly
);
1036 make_command (char *arg
, int from_tty
)
1044 p
= xmalloc (sizeof ("make ") + strlen (arg
));
1045 strcpy (p
, "make ");
1046 strcpy (p
+ sizeof ("make ") - 1, arg
);
1049 shell_escape (p
, from_tty
);
1053 show_user (char *args
, int from_tty
)
1055 struct cmd_list_element
*c
;
1056 extern struct cmd_list_element
*cmdlist
;
1060 char *comname
= args
;
1061 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1062 if (c
->class != class_user
)
1063 error (_("Not a user command."));
1064 show_user_1 (c
, "", args
, gdb_stdout
);
1068 for (c
= cmdlist
; c
; c
= c
->next
)
1070 if (c
->class == class_user
|| c
->prefixlist
!= NULL
)
1071 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1076 /* Search through names of commands and documentations for a certain
1080 apropos_command (char *searchstr
, int from_tty
)
1082 extern struct cmd_list_element
*cmdlist
; /*This is the main command list*/
1084 char *pattern_fastmap
;
1085 char errorbuffer
[512];
1086 pattern_fastmap
= xcalloc (256, sizeof (char));
1087 if (searchstr
== NULL
)
1088 error (_("REGEXP string is empty"));
1090 if (regcomp(&pattern
,searchstr
,REG_ICASE
) == 0)
1092 pattern
.fastmap
=pattern_fastmap
;
1093 re_compile_fastmap(&pattern
);
1094 apropos_cmd (gdb_stdout
,cmdlist
,&pattern
,"");
1098 regerror(regcomp(&pattern
,searchstr
,REG_ICASE
),NULL
,errorbuffer
,512);
1099 error (_("Error in regular expression:%s"),errorbuffer
);
1101 xfree (pattern_fastmap
);
1104 /* Print a list of files and line numbers which a user may choose from
1105 in order to list a function which was specified ambiguously (as with
1106 `list classname::overloadedfuncname', for example). The vector in
1107 SALS provides the filenames and line numbers. */
1110 ambiguous_line_spec (struct symtabs_and_lines
*sals
)
1114 for (i
= 0; i
< sals
->nelts
; ++i
)
1115 printf_filtered (_("file: \"%s\", line number: %d\n"),
1116 sals
->sals
[i
].symtab
->filename
, sals
->sals
[i
].line
);
1120 set_debug (char *arg
, int from_tty
)
1122 printf_unfiltered (_("\"set debug\" must be followed by the name of a debug subcommand.\n"));
1123 help_list (setdebuglist
, "set debug ", -1, gdb_stdout
);
1127 show_debug (char *args
, int from_tty
)
1129 cmd_show_list (showdebuglist
, from_tty
, "");
1133 init_cmd_lists (void)
1135 max_user_call_depth
= 1024;
1145 enablebreaklist
= NULL
;
1150 showhistlist
= NULL
;
1151 unsethistlist
= NULL
;
1152 maintenancelist
= NULL
;
1153 maintenanceinfolist
= NULL
;
1154 maintenanceprintlist
= NULL
;
1155 setprintlist
= NULL
;
1156 showprintlist
= NULL
;
1157 setchecklist
= NULL
;
1158 showchecklist
= NULL
;
1162 show_info_verbose (struct ui_file
*file
, int from_tty
,
1163 struct cmd_list_element
*c
,
1167 fprintf_filtered (file
, _("\
1168 Verbose printing of informational messages is %s.\n"), value
);
1170 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1174 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1175 struct cmd_list_element
*c
, const char *value
)
1177 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1182 show_baud_rate (struct ui_file
*file
, int from_tty
,
1183 struct cmd_list_element
*c
, const char *value
)
1185 fprintf_filtered (file
, _("Baud rate for remote serial I/O is %s.\n"),
1190 show_remote_debug (struct ui_file
*file
, int from_tty
,
1191 struct cmd_list_element
*c
, const char *value
)
1193 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1198 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1199 struct cmd_list_element
*c
, const char *value
)
1201 fprintf_filtered (file
, _("\
1202 Timeout limit to wait for target to respond is %s.\n"),
1207 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1208 struct cmd_list_element
*c
, const char *value
)
1210 fprintf_filtered (file
, _("\
1211 The max call depth for user-defined commands is %s.\n"),
1217 init_cli_cmds (void)
1219 struct cmd_list_element
*c
;
1220 char *source_help_text
;
1222 /* Define the classes of commands.
1223 They will appear in the help list in the reverse of this order. */
1225 add_cmd ("internals", class_maintenance
, NULL
, _("\
1226 Maintenance commands.\n\
1227 Some gdb commands are provided just for use by gdb maintainers.\n\
1228 These commands are subject to frequent change, and may not be as\n\
1229 well documented as user commands."),
1231 add_cmd ("obscure", class_obscure
, NULL
, _("Obscure features."), &cmdlist
);
1232 add_cmd ("aliases", class_alias
, NULL
, _("Aliases of other commands."), &cmdlist
);
1233 add_cmd ("user-defined", class_user
, NULL
, _("\
1234 User-defined commands.\n\
1235 The commands in this class are those defined by the user.\n\
1236 Use the \"define\" command to define a command."), &cmdlist
);
1237 add_cmd ("support", class_support
, NULL
, _("Support facilities."), &cmdlist
);
1239 add_cmd ("status", class_info
, NULL
, _("Status inquiries."), &cmdlist
);
1240 add_cmd ("files", class_files
, NULL
, _("Specifying and examining files."),
1242 add_cmd ("breakpoints", class_breakpoint
, NULL
,
1243 _("Making program stop at certain points."), &cmdlist
);
1244 add_cmd ("data", class_vars
, NULL
, _("Examining data."), &cmdlist
);
1245 add_cmd ("stack", class_stack
, NULL
, _("\
1246 Examining the stack.\n\
1247 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1248 counting from zero for the innermost (currently executing) frame.\n\n\
1249 At any time gdb identifies one frame as the \"selected\" frame.\n\
1250 Variable lookups are done with respect to the selected frame.\n\
1251 When the program being debugged stops, gdb selects the innermost frame.\n\
1252 The commands below can be used to select other frames by number or address."),
1254 add_cmd ("running", class_run
, NULL
, _("Running the program."), &cmdlist
);
1256 /* Define general commands. */
1258 add_com ("pwd", class_files
, pwd_command
, _("\
1259 Print working directory. This is used for your program as well."));
1261 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1262 Set working directory to DIR for debugger and program being debugged.\n\
1263 The change does not take effect for the program being debugged\n\
1264 until the next time it is started."), &cmdlist
);
1265 set_cmd_completer (c
, filename_completer
);
1267 add_com ("echo", class_support
, echo_command
, _("\
1268 Print a constant string. Give string as argument.\n\
1269 C escape sequences may be used in the argument.\n\
1270 No newline is added at the end of the argument;\n\
1271 use \"\\n\" if you want a newline to be printed.\n\
1272 Since leading and trailing whitespace are ignored in command arguments,\n\
1273 if you want to print some you must use \"\\\" before leading whitespace\n\
1274 to be printed or after trailing whitespace."));
1275 add_com ("document", class_support
, document_command
, _("\
1276 Document a user-defined command.\n\
1277 Give command name as argument. Give documentation on following lines.\n\
1278 End with a line of just \"end\"."));
1279 add_com ("define", class_support
, define_command
, _("\
1280 Define a new command name. Command name is argument.\n\
1281 Definition appears on following lines, one command per line.\n\
1282 End with a line of just \"end\".\n\
1283 Use the \"document\" command to give documentation for the new command.\n\
1284 Commands defined in this way may have up to ten arguments."));
1286 source_help_text
= xstrprintf (_("\
1287 Read commands from a file named FILE.\n\
1288 Optional -v switch (before the filename) causes each command in\n\
1289 FILE to be echoed as it is executed.\n\
1290 Note that the file \"%s\" is read automatically in this way\n\
1291 when GDB is started."), gdbinit
);
1292 c
= add_cmd ("source", class_support
, source_command
,
1293 source_help_text
, &cmdlist
);
1294 set_cmd_completer (c
, filename_completer
);
1296 add_com ("quit", class_support
, quit_command
, _("Exit gdb."));
1297 c
= add_com ("help", class_support
, help_command
,
1298 _("Print list of commands."));
1299 set_cmd_completer (c
, command_completer
);
1300 add_com_alias ("q", "quit", class_support
, 1);
1301 add_com_alias ("h", "help", class_support
, 1);
1303 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1304 Set verbosity."), _("\
1305 Show verbosity."), NULL
,
1308 &setlist
, &showlist
);
1310 add_prefix_cmd ("history", class_support
, set_history
,
1311 _("Generic command for setting command history parameters."),
1312 &sethistlist
, "set history ", 0, &setlist
);
1313 add_prefix_cmd ("history", class_support
, show_history
,
1314 _("Generic command for showing command history parameters."),
1315 &showhistlist
, "show history ", 0, &showlist
);
1317 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1318 Set history expansion on command input."), _("\
1319 Show history expansion on command input."), _("\
1320 Without an argument, history expansion is enabled."),
1322 show_history_expansion_p
,
1323 &sethistlist
, &showhistlist
);
1325 add_prefix_cmd ("info", class_info
, info_command
, _("\
1326 Generic command for showing things about the program being debugged."),
1327 &infolist
, "info ", 0, &cmdlist
);
1328 add_com_alias ("i", "info", class_info
, 1);
1330 add_com ("complete", class_obscure
, complete_command
,
1331 _("List the completions for the rest of the line as a command."));
1333 add_prefix_cmd ("show", class_info
, show_command
, _("\
1334 Generic command for showing things about the debugger."),
1335 &showlist
, "show ", 0, &cmdlist
);
1336 /* Another way to get at the same thing. */
1337 add_info ("set", show_command
, _("Show all GDB settings."));
1339 add_cmd ("commands", no_class
, show_commands
, _("\
1340 Show the history of commands you typed.\n\
1341 You can supply a command number to start with, or a `+' to start after\n\
1342 the previous command number shown."),
1345 add_cmd ("version", no_class
, show_version
,
1346 _("Show what version of GDB this is."), &showlist
);
1348 add_com ("while", class_support
, while_command
, _("\
1349 Execute nested commands WHILE the conditional expression is non zero.\n\
1350 The conditional expression must follow the word `while' and must in turn be\n\
1351 followed by a new line. The nested commands must be entered one per line,\n\
1352 and should be terminated by the word `end'."));
1354 add_com ("if", class_support
, if_command
, _("\
1355 Execute nested commands once IF the conditional expression is non zero.\n\
1356 The conditional expression must follow the word `if' and must in turn be\n\
1357 followed by a new line. The nested commands must be entered one per line,\n\
1358 and should be terminated by the word 'else' or `end'. If an else clause\n\
1359 is used, the same rules apply to its nested commands as to the first ones."));
1361 /* If target is open when baud changes, it doesn't take effect until the
1362 next open (I think, not sure). */
1363 add_setshow_zinteger_cmd ("remotebaud", no_class
, &baud_rate
, _("\
1364 Set baud rate for remote serial I/O."), _("\
1365 Show baud rate for remote serial I/O."), _("\
1366 This value is used to set the speed of the serial port when debugging\n\
1367 using remote targets."),
1370 &setlist
, &showlist
);
1372 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1373 Set debugging of remote protocol."), _("\
1374 Show debugging of remote protocol."), _("\
1375 When enabled, each packet sent or received with the remote target\n\
1379 &setdebuglist
, &showdebuglist
);
1381 add_setshow_integer_cmd ("remotetimeout", no_class
, &remote_timeout
, _("\
1382 Set timeout limit to wait for target to respond."), _("\
1383 Show timeout limit to wait for target to respond."), _("\
1384 This value is used to set the time limit for gdb to wait for a response\n\
1387 show_remote_timeout
,
1388 &setlist
, &showlist
);
1390 add_prefix_cmd ("debug", no_class
, set_debug
,
1391 _("Generic command for setting gdb debugging flags"),
1392 &setdebuglist
, "set debug ", 0, &setlist
);
1394 add_prefix_cmd ("debug", no_class
, show_debug
,
1395 _("Generic command for showing gdb debugging flags"),
1396 &showdebuglist
, "show debug ", 0, &showlist
);
1398 c
= add_com ("shell", class_support
, shell_escape
, _("\
1399 Execute the rest of the line as a shell command.\n\
1400 With no arguments, run an inferior shell."));
1401 set_cmd_completer (c
, filename_completer
);
1403 c
= add_com ("edit", class_files
, edit_command
, _("\
1404 Edit specified file or function.\n\
1405 With no argument, edits file containing most recent line listed.\n\
1406 Editing targets can be specified in these ways:\n\
1407 FILE:LINENUM, to edit at that line in that file,\n\
1408 FUNCTION, to edit at the beginning of that function,\n\
1409 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1410 *ADDRESS, to edit at the line containing that address.\n\
1411 Uses EDITOR environment variable contents as editor (or ex as default)."));
1413 c
->completer
= location_completer
;
1415 add_com ("list", class_files
, list_command
, _("\
1416 List specified function or line.\n\
1417 With no argument, lists ten more lines after or around previous listing.\n\
1418 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1419 One argument specifies a line, and ten lines are listed around that line.\n\
1420 Two arguments with comma between specify starting and ending lines to list.\n\
1421 Lines can be specified in these ways:\n\
1422 LINENUM, to list around that line in current file,\n\
1423 FILE:LINENUM, to list around that line in that file,\n\
1424 FUNCTION, to list around beginning of that function,\n\
1425 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1426 *ADDRESS, to list around the line containing that address.\n\
1427 With two args if one is empty it stands for ten lines away from the other arg."));
1430 add_com_alias ("l", "list", class_files
, 1);
1432 add_com_alias ("v", "list", class_files
, 1);
1435 add_com_alias ("file", "list", class_files
, 1);
1437 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1438 Disassemble a specified section of memory.\n\
1439 Default is the function surrounding the pc of the selected frame.\n\
1440 With a /m modifier, source lines are included (if available).\n\
1441 With a single argument, the function surrounding that address is dumped.\n\
1442 Two arguments are taken as a range of memory to dump."));
1443 set_cmd_completer (c
, location_completer
);
1445 add_com_alias ("va", "disassemble", class_xdb
, 0);
1447 /* NOTE: cagney/2000-03-20: Being able to enter ``(gdb) !ls'' would
1448 be a really useful feature. Unfortunately, the below wont do
1449 this. Instead it adds support for the form ``(gdb) ! ls''
1450 (i.e. the space is required). If the ``!'' command below is
1451 added the complains about no ``!'' command would be replaced by
1452 complains about how the ``!'' command is broken :-) */
1454 add_com_alias ("!", "shell", class_support
, 0);
1456 c
= add_com ("make", class_support
, make_command
, _("\
1457 Run the ``make'' program using the rest of the line as arguments."));
1458 set_cmd_completer (c
, filename_completer
);
1459 add_cmd ("user", no_class
, show_user
, _("\
1460 Show definitions of user defined commands.\n\
1461 Argument is the name of the user defined command.\n\
1462 With no argument, show definitions of all user defined commands."), &showlist
);
1463 add_com ("apropos", class_support
, apropos_command
,
1464 _("Search for commands matching a REGEXP"));
1466 add_setshow_integer_cmd ("max-user-call-depth", no_class
,
1467 &max_user_call_depth
, _("\
1468 Set the max call depth for user-defined commands."), _("\
1469 Show the max call depth for user-defined commands."), NULL
,
1471 show_max_user_call_depth
,
1472 &setlist
, &showlist
);
1474 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1475 Set tracing of GDB CLI commands."), _("\
1476 Show state of GDB CLI command tracing."), _("\
1477 When 'on', each command is displayed as it is executed."),
1480 &setlist
, &showlist
);