1 /* Top level stuff for GDB, the GNU debugger.
3 Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
4 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
5 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
31 #include "exceptions.h"
34 #include <sys/types.h>
38 #include "gdb_string.h"
39 #include "event-loop.h"
45 /* If nonzero, display time usage both at startup and for each command. */
49 /* If nonzero, display space usage both at startup and for each command. */
53 /* The selected interpreter. This will be used as a set command
54 variable, so it should always be malloc'ed - since
55 do_setshow_command will free it. */
58 /* Whether xdb commands will be handled */
61 /* Whether dbx commands will be handled */
64 /* System root path, used to find libraries etc. */
65 char *gdb_sysroot
= 0;
67 struct ui_file
*gdb_stdout
;
68 struct ui_file
*gdb_stderr
;
69 struct ui_file
*gdb_stdlog
;
70 struct ui_file
*gdb_stdin
;
71 /* target IO streams */
72 struct ui_file
*gdb_stdtargin
;
73 struct ui_file
*gdb_stdtarg
;
74 struct ui_file
*gdb_stdtargerr
;
76 /* Support for the --batch-silent option. */
79 /* Support for --return-child-result option.
80 Set the default to -1 to return error in the case
81 that the program does not run or does not complete. */
82 int return_child_result
= 0;
83 int return_child_result_value
= -1;
85 /* Whether to enable writing into executable and core files */
86 extern int write_files
;
88 static void print_gdb_help (struct ui_file
*);
90 /* These two are used to set the external editor commands when gdb is farming
91 out files to be edited by another program. */
93 extern char *external_editor_command
;
95 /* Call command_loop. If it happens to return, pass that through as a
96 non-zero return status. */
99 captured_command_loop (void *data
)
101 current_interp_command_loop ();
102 /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
103 would clean things up (restoring the cleanup chain) to the state
104 they were just prior to the call. Technically, this means that
105 the do_cleanups() below is redundant. Unfortunately, many FUNCs
106 are not that well behaved. do_cleanups should either be replaced
107 with a do_cleanups call (to cover the problem) or an assertion
108 check to detect bad FUNCs code. */
109 do_cleanups (ALL_CLEANUPS
);
110 /* If the command_loop returned, normally (rather than threw an
111 error) we try to quit. If the quit is aborted, catch_errors()
112 which called this catch the signal and restart the command
114 quit_command (NULL
, instream
== stdin
);
119 captured_main (void *data
)
121 struct captured_main_args
*context
= data
;
122 int argc
= context
->argc
;
123 char **argv
= context
->argv
;
125 static int quiet
= 0;
126 static int batch
= 0;
127 static int set_args
= 0;
129 /* Pointers to various arguments from command line. */
131 char *execarg
= NULL
;
132 char *corearg
= NULL
;
136 /* These are static so that we can take their address in an initializer. */
137 static int print_help
;
138 static int print_version
;
140 /* Pointers to all arguments of --command option. */
142 /* Allocated size of cmdarg. */
144 /* Number of elements of cmdarg used. */
147 /* Indices of all arguments of --directory option. */
149 /* Allocated size. */
151 /* Number of elements used. */
154 struct stat homebuf
, cwdbuf
;
159 long time_at_startup
= get_run_time ();
161 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
162 setlocale (LC_MESSAGES
, "");
164 #if defined (HAVE_SETLOCALE)
165 setlocale (LC_CTYPE
, "");
167 bindtextdomain (PACKAGE
, LOCALEDIR
);
168 textdomain (PACKAGE
);
171 lim_at_start
= (char *) sbrk (0);
174 #if defined (ALIGN_STACK_ON_STARTUP)
175 i
= (int) &count
& 0x3;
181 cmdarg
= (char **) xmalloc (cmdsize
* sizeof (*cmdarg
));
184 dirarg
= (char **) xmalloc (dirsize
* sizeof (*dirarg
));
188 line
= (char *) xmalloc (linesize
);
189 line
[0] = '\0'; /* Terminate saved (now empty) cmd line */
192 getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
));
193 current_directory
= gdb_dirbuf
;
195 gdb_stdout
= stdio_fileopen (stdout
);
196 gdb_stderr
= stdio_fileopen (stderr
);
197 gdb_stdlog
= gdb_stderr
; /* for moment */
198 gdb_stdtarg
= gdb_stderr
; /* for moment */
199 gdb_stdin
= stdio_fileopen (stdin
);
200 gdb_stdtargerr
= gdb_stderr
; /* for moment */
201 gdb_stdtargin
= gdb_stdin
; /* for moment */
203 /* Set the sysroot path. */
204 #ifdef TARGET_SYSTEM_ROOT_RELOCATABLE
205 gdb_sysroot
= make_relative_prefix (argv
[0], BINDIR
, TARGET_SYSTEM_ROOT
);
211 if (stat (gdb_sysroot
, &s
) == 0)
212 if (S_ISDIR (s
.st_mode
))
218 gdb_sysroot
= TARGET_SYSTEM_ROOT
;
222 gdb_sysroot
= TARGET_SYSTEM_ROOT
;
224 #if defined (TARGET_SYSTEM_ROOT)
225 gdb_sysroot
= TARGET_SYSTEM_ROOT
;
231 /* There will always be an interpreter. Either the one passed into
232 this captured main, or one specified by the user at start up, or
233 the console. Initialize the interpreter to the one requested by
235 interpreter_p
= xstrdup (context
->interpreter_p
);
237 /* Parse arguments and options. */
240 /* When var field is 0, use flag field to record the equivalent
241 short option (or arbitrary numbers starting at 10 for those
242 with no equivalent). */
252 static struct option long_options
[] =
255 {"tui", no_argument
, 0, OPT_TUI
},
257 {"xdb", no_argument
, &xdb_commands
, 1},
258 {"dbx", no_argument
, &dbx_commands
, 1},
259 {"readnow", no_argument
, &readnow_symbol_files
, 1},
260 {"r", no_argument
, &readnow_symbol_files
, 1},
261 {"quiet", no_argument
, &quiet
, 1},
262 {"q", no_argument
, &quiet
, 1},
263 {"silent", no_argument
, &quiet
, 1},
264 {"nx", no_argument
, &inhibit_gdbinit
, 1},
265 {"n", no_argument
, &inhibit_gdbinit
, 1},
266 {"batch-silent", no_argument
, 0, 'B'},
267 {"batch", no_argument
, &batch
, 1},
268 {"epoch", no_argument
, &epoch_interface
, 1},
270 /* This is a synonym for "--annotate=1". --annotate is now preferred,
271 but keep this here for a long time because people will be running
272 emacses which use --fullname. */
273 {"fullname", no_argument
, 0, 'f'},
274 {"f", no_argument
, 0, 'f'},
276 {"annotate", required_argument
, 0, OPT_ANNOTATE
},
277 {"help", no_argument
, &print_help
, 1},
278 {"se", required_argument
, 0, OPT_SE
},
279 {"symbols", required_argument
, 0, 's'},
280 {"s", required_argument
, 0, 's'},
281 {"exec", required_argument
, 0, 'e'},
282 {"e", required_argument
, 0, 'e'},
283 {"core", required_argument
, 0, 'c'},
284 {"c", required_argument
, 0, 'c'},
285 {"pid", required_argument
, 0, 'p'},
286 {"p", required_argument
, 0, 'p'},
287 {"command", required_argument
, 0, 'x'},
288 {"version", no_argument
, &print_version
, 1},
289 {"x", required_argument
, 0, 'x'},
291 {"tclcommand", required_argument
, 0, 'z'},
292 {"enable-external-editor", no_argument
, 0, 'y'},
293 {"editor-command", required_argument
, 0, 'w'},
295 {"ui", required_argument
, 0, 'i'},
296 {"interpreter", required_argument
, 0, 'i'},
297 {"i", required_argument
, 0, 'i'},
298 {"directory", required_argument
, 0, 'd'},
299 {"d", required_argument
, 0, 'd'},
300 {"cd", required_argument
, 0, OPT_CD
},
301 {"tty", required_argument
, 0, 't'},
302 {"baud", required_argument
, 0, 'b'},
303 {"b", required_argument
, 0, 'b'},
304 {"nw", no_argument
, NULL
, OPT_NOWINDOWS
},
305 {"nowindows", no_argument
, NULL
, OPT_NOWINDOWS
},
306 {"w", no_argument
, NULL
, OPT_WINDOWS
},
307 {"windows", no_argument
, NULL
, OPT_WINDOWS
},
308 {"statistics", no_argument
, 0, OPT_STATISTICS
},
309 {"write", no_argument
, &write_files
, 1},
310 {"args", no_argument
, &set_args
, 1},
311 {"l", required_argument
, 0, 'l'},
312 {"return-child-result", no_argument
, &return_child_result
, 1},
313 {0, no_argument
, 0, 0}
320 c
= getopt_long_only (argc
, argv
, "",
321 long_options
, &option_index
);
322 if (c
== EOF
|| set_args
)
325 /* Long option that takes an argument. */
326 if (c
== 0 && long_options
[option_index
].flag
== 0)
327 c
= long_options
[option_index
].val
;
332 /* Long option that just sets a flag. */
342 /* FIXME: what if the syntax is wrong (e.g. not digits)? */
343 annotation_level
= atoi (optarg
);
346 /* Enable the display of both time and space usage. */
351 /* --tui is equivalent to -i=tui. */
352 xfree (interpreter_p
);
353 interpreter_p
= xstrdup ("tui");
356 /* FIXME: cagney/2003-03-01: Not sure if this option is
357 actually useful, and if it is, what it should do. */
361 /* -nw is equivalent to -i=console. */
362 xfree (interpreter_p
);
363 interpreter_p
= xstrdup (INTERP_CONSOLE
);
367 annotation_level
= 1;
368 /* We have probably been invoked from emacs. Disable window interface. */
381 /* "corearg" is shared by "--core" and "--pid" */
385 cmdarg
[ncmd
++] = optarg
;
389 cmdarg
= (char **) xrealloc ((char *) cmdarg
,
390 cmdsize
* sizeof (*cmdarg
));
394 batch
= batch_silent
= 1;
395 gdb_stdout
= ui_file_new();
400 extern int gdbtk_test (char *);
401 if (!gdbtk_test (optarg
))
403 fprintf_unfiltered (gdb_stderr
, _("%s: unable to load tclcommand file \"%s\""),
410 /* Backwards compatibility only. */
414 external_editor_command
= xstrdup (optarg
);
419 xfree (interpreter_p
);
420 interpreter_p
= xstrdup (optarg
);
423 dirarg
[ndir
++] = optarg
;
427 dirarg
= (char **) xrealloc ((char *) dirarg
,
428 dirsize
* sizeof (*dirarg
));
442 i
= strtol (optarg
, &p
, 0);
443 if (i
== 0 && p
== optarg
)
445 /* Don't use *_filtered or warning() (which relies on
446 current_target) until after initialize_all_files(). */
450 _("warning: could not set baud rate to `%s'.\n"), optarg
);
460 i
= strtol (optarg
, &p
, 0);
461 if (i
== 0 && p
== optarg
)
463 /* Don't use *_filtered or warning() (which relies on
464 current_target) until after initialize_all_files(). */
468 _("warning: could not set timeout limit to `%s'.\n"), optarg
);
475 fprintf_unfiltered (gdb_stderr
,
476 _("Use `%s --help' for a complete list of options.\n"),
482 /* If --help or --version, disable window interface. */
483 if (print_help
|| print_version
)
490 /* The remaining options are the command-line options for the
491 inferior. The first one is the sym/exec file, and the rest
495 fprintf_unfiltered (gdb_stderr
,
496 _("%s: `--args' specified but no program specified\n"),
500 symarg
= argv
[optind
];
501 execarg
= argv
[optind
];
503 set_inferior_args_vector (argc
- optind
, &argv
[optind
]);
507 /* OK, that's all the options. The other arguments are filenames. */
509 for (; optind
< argc
; optind
++)
513 symarg
= argv
[optind
];
514 execarg
= argv
[optind
];
517 /* The documentation says this can be a "ProcID" as well.
518 We will try it as both a corefile and a pid. */
519 corearg
= argv
[optind
];
522 fprintf_unfiltered (gdb_stderr
,
523 _("Excess command line arguments ignored. (%s%s)\n"),
524 argv
[optind
], (optind
== argc
- 1) ? "" : " ...");
532 /* Initialize all files. Give the interpreter a chance to take
533 control of the console via the deprecated_init_ui_hook (). */
536 /* Do these (and anything which might call wrap_here or *_filtered)
537 after initialize_all_files() but before the interpreter has been
538 installed. Otherwize the help/version messages will be eaten by
539 the interpreter's output handler. */
543 print_gdb_version (gdb_stdout
);
545 printf_filtered ("\n");
551 print_gdb_help (gdb_stdout
);
552 fputs_unfiltered ("\n", gdb_stdout
);
556 /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets
557 GDB retain the old MI1 interpreter startup behavior. Output the
558 copyright message before the interpreter is installed. That way
559 it isn't encapsulated in MI output. */
560 if (!quiet
&& strcmp (interpreter_p
, INTERP_MI1
) == 0)
562 /* Print all the junk at the top, with trailing "..." if we are about
563 to read a symbol file (possibly slowly). */
564 print_gdb_version (gdb_stdout
);
566 printf_filtered ("..");
568 gdb_flush (gdb_stdout
); /* Force to screen during slow operations */
572 /* Install the default UI. All the interpreters should have had a
573 look at things by now. Initialize the default interpreter. */
577 struct interp
*interp
= interp_lookup (interpreter_p
);
579 error (_("Interpreter `%s' unrecognized"), interpreter_p
);
581 if (!interp_set (interp
))
583 fprintf_unfiltered (gdb_stderr
,
584 "Interpreter `%s' failed to initialize.\n",
590 /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets
591 GDB retain the old MI1 interpreter startup behavior. Output the
592 copyright message after the interpreter is installed when it is
593 any sane interpreter. */
594 if (!quiet
&& !current_interp_named_p (INTERP_MI1
))
596 /* Print all the junk at the top, with trailing "..." if we are about
597 to read a symbol file (possibly slowly). */
598 print_gdb_version (gdb_stdout
);
600 printf_filtered ("..");
602 gdb_flush (gdb_stdout
); /* Force to screen during slow operations */
605 error_pre_print
= "\n\n";
606 quit_pre_print
= error_pre_print
;
608 /* We may get more than one warning, don't double space all of them... */
609 warning_pre_print
= _("\nwarning: ");
611 /* Read and execute $HOME/.gdbinit file, if it exists. This is done
612 *before* all the command line arguments are processed; it sets
613 global parameters, which are independent of what file you are
614 debugging or what directory you are in. */
615 homedir
= getenv ("HOME");
618 char *homeinit
= xstrprintf ("%s/%s", homedir
, gdbinit
);
620 if (!inhibit_gdbinit
)
622 catch_command_errors (source_command
, homeinit
, 0, RETURN_MASK_ALL
);
625 /* Do stats; no need to do them elsewhere since we'll only
626 need them if homedir is set. Make sure that they are
627 zero in case one of them fails (this guarantees that they
628 won't match if either exists). */
630 memset (&homebuf
, 0, sizeof (struct stat
));
631 memset (&cwdbuf
, 0, sizeof (struct stat
));
633 stat (homeinit
, &homebuf
);
634 stat (gdbinit
, &cwdbuf
); /* We'll only need this if
639 /* Now perform all the actions indicated by the arguments. */
642 catch_command_errors (cd_command
, cdarg
, 0, RETURN_MASK_ALL
);
645 for (i
= 0; i
< ndir
; i
++)
646 catch_command_errors (directory_command
, dirarg
[i
], 0, RETURN_MASK_ALL
);
651 && strcmp (execarg
, symarg
) == 0)
653 /* The exec file and the symbol-file are the same. If we can't
654 open it, better only print one error message.
655 catch_command_errors returns non-zero on success! */
656 if (catch_command_errors (exec_file_attach
, execarg
, !batch
, RETURN_MASK_ALL
))
657 catch_command_errors (symbol_file_add_main
, symarg
, 0, RETURN_MASK_ALL
);
662 catch_command_errors (exec_file_attach
, execarg
, !batch
, RETURN_MASK_ALL
);
664 catch_command_errors (symbol_file_add_main
, symarg
, 0, RETURN_MASK_ALL
);
667 /* After the symbol file has been read, print a newline to get us
668 beyond the copyright line... But errors should still set off
669 the error message with a (single) blank line. */
671 printf_filtered ("\n");
672 error_pre_print
= "\n";
673 quit_pre_print
= error_pre_print
;
674 warning_pre_print
= _("\nwarning: ");
678 /* corearg may be either a corefile or a pid.
679 If its first character is a digit, try attach first
680 and then corefile. Otherwise try corefile first. */
682 if (isdigit (corearg
[0]))
684 if (catch_command_errors (attach_command
, corearg
,
685 !batch
, RETURN_MASK_ALL
) == 0)
686 catch_command_errors (core_file_command
, corearg
,
687 !batch
, RETURN_MASK_ALL
);
689 else /* Can't be a pid, better be a corefile. */
690 catch_command_errors (core_file_command
, corearg
,
691 !batch
, RETURN_MASK_ALL
);
695 catch_command_errors (tty_command
, ttyarg
, !batch
, RETURN_MASK_ALL
);
697 /* Error messages should no longer be distinguished with extra output. */
698 error_pre_print
= NULL
;
699 quit_pre_print
= NULL
;
700 warning_pre_print
= _("warning: ");
702 /* Read the .gdbinit file in the current directory, *if* it isn't
703 the same as the $HOME/.gdbinit file (it should exist, also). */
706 || memcmp ((char *) &homebuf
, (char *) &cwdbuf
, sizeof (struct stat
)))
707 if (!inhibit_gdbinit
)
709 catch_command_errors (source_command
, gdbinit
, 0, RETURN_MASK_ALL
);
712 for (i
= 0; i
< ncmd
; i
++)
715 /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that
716 expanded into a call to setjmp(). */
717 if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */
719 /* NOTE: I am commenting this out, because it is not clear
720 where this feature is used. It is very old and
721 undocumented. ezannoni: 1999-05-04 */
723 if (cmdarg
[i
][0] == '-' && cmdarg
[i
][1] == '\0')
724 read_command_file (stdin
);
727 source_command (cmdarg
[i
], !batch
);
728 do_cleanups (ALL_CLEANUPS
);
731 catch_command_errors (source_command
, cmdarg
[i
], !batch
, RETURN_MASK_ALL
);
735 /* Read in the old history after all the command files have been read. */
740 /* We have hit the end of the batch file. */
741 quit_force (NULL
, 0);
744 /* Do any host- or target-specific hacks. This is used for i960 targets
745 to force the user to set a nindy target and spec its parameters. */
747 #ifdef BEFORE_MAIN_LOOP_HOOK
748 BEFORE_MAIN_LOOP_HOOK
;
751 /* Show time and/or space usage. */
755 long init_time
= get_run_time () - time_at_startup
;
757 printf_unfiltered (_("Startup time: %ld.%06ld\n"),
758 init_time
/ 1000000, init_time
% 1000000);
764 extern char **environ
;
765 char *lim
= (char *) sbrk (0);
767 printf_unfiltered (_("Startup size: data size %ld\n"),
768 (long) (lim
- (char *) &environ
));
773 /* FIXME: cagney/1999-11-06: The original main loop was like: */
776 if (!SET_TOP_LEVEL ())
778 do_cleanups (ALL_CLEANUPS
); /* Do complete cleanup */
779 /* GUIs generally have their own command loop, mainloop, or
780 whatever. This is a good place to gain control because
781 many error conditions will end up here via longjmp(). */
782 if (deprecated_command_loop_hook
)
783 deprecated_command_loop_hook ();
785 deprecated_command_loop ();
786 quit_command ((char *) 0, instream
== stdin
);
789 /* NOTE: If the command_loop() returned normally, the loop would
790 attempt to exit by calling the function quit_command(). That
791 function would either call exit() or throw an error returning
792 control to SET_TOP_LEVEL. */
793 /* NOTE: The function do_cleanups() was called once each time round
794 the loop. The usefulness of the call isn't clear. If an error
795 was thrown, everything would have already been cleaned up. If
796 command_loop() returned normally and quit_command() was called,
797 either exit() or error() (again cleaning up) would be called. */
799 /* NOTE: cagney/1999-11-07: There is probably no reason for not
800 moving this loop and the code found in captured_command_loop()
801 into the command_loop() proper. The main thing holding back that
802 change - SET_TOP_LEVEL() - has been eliminated. */
805 catch_errors (captured_command_loop
, 0, "", RETURN_MASK_ALL
);
807 /* No exit -- exit is through quit_command. */
811 gdb_main (struct captured_main_args
*args
)
813 use_windows
= args
->use_windows
;
814 catch_errors (captured_main
, args
, "", RETURN_MASK_ALL
);
815 /* The only way to end up here is by an error (normal exit is
816 handled by quit_force()), hence always return an error status. */
821 /* Don't use *_filtered for printing help. We don't want to prompt
822 for continue no matter how small the screen or how much we're going
826 print_gdb_help (struct ui_file
*stream
)
828 fputs_unfiltered (_("\
829 This is the GNU debugger. Usage:\n\n\
830 gdb [options] [executable-file [core-file or process-id]]\n\
831 gdb [options] --args executable-file [inferior-arguments ...]\n\n\
834 fputs_unfiltered (_("\
835 --args Arguments after executable-file are passed to inferior\n\
837 fputs_unfiltered (_("\
838 -b BAUDRATE Set serial port baud rate used for remote debugging.\n\
839 --batch Exit after processing options.\n\
840 --batch-silent As for --batch, but suppress all gdb stdout output.\n\
841 --return-child-result\n\
842 GDB exit code will be the child's exit code.\n\
843 --cd=DIR Change current directory to DIR.\n\
844 --command=FILE Execute GDB commands from FILE.\n\
845 --core=COREFILE Analyze the core dump COREFILE.\n\
846 --pid=PID Attach to running process PID.\n\
848 fputs_unfiltered (_("\
849 --dbx DBX compatibility mode.\n\
850 --directory=DIR Search for source files in DIR.\n\
851 --epoch Output information used by epoch emacs-GDB interface.\n\
852 --exec=EXECFILE Use EXECFILE as the executable.\n\
853 --fullname Output information used by emacs-GDB interface.\n\
854 --help Print this message.\n\
856 fputs_unfiltered (_("\
857 --interpreter=INTERP\n\
858 Select a specific interpreter / user interface\n\
860 fputs_unfiltered (_("\
861 -l TIMEOUT Set timeout in seconds for remote debugging.\n\
862 --nw Do not use a window interface.\n\
863 --nx Do not read "), stream
);
864 fputs_unfiltered (gdbinit
, stream
);
865 fputs_unfiltered (_(" file.\n\
866 --quiet Do not print version number on startup.\n\
867 --readnow Fully read symbol files on first access.\n\
869 fputs_unfiltered (_("\
870 --se=FILE Use FILE as symbol file and executable file.\n\
871 --symbols=SYMFILE Read symbols from SYMFILE.\n\
872 --tty=TTY Use TTY for input/output by the program being debugged.\n\
875 fputs_unfiltered (_("\
876 --tui Use a terminal user interface.\n\
879 fputs_unfiltered (_("\
880 --version Print version information and then exit.\n\
881 -w Use a window interface.\n\
882 --write Set writing into executable and core files.\n\
883 --xdb XDB compatibility mode.\n\
885 fputs_unfiltered (_("\n\
886 For more information, type \"help\" from within GDB, or consult the\n\
887 GDB manual (available as on-line info or a printed manual).\n\
888 Report bugs to \"bug-gdb@gnu.org\".\