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 Free Software
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 /* Whether to enable writing into executable and core files */
77 extern int write_files
;
79 static void print_gdb_help (struct ui_file
*);
81 /* These two are used to set the external editor commands when gdb is farming
82 out files to be edited by another program. */
84 extern char *external_editor_command
;
86 /* Call command_loop. If it happens to return, pass that through as a
87 non-zero return status. */
90 captured_command_loop (void *data
)
92 current_interp_command_loop ();
93 /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
94 would clean things up (restoring the cleanup chain) to the state
95 they were just prior to the call. Technically, this means that
96 the do_cleanups() below is redundant. Unfortunately, many FUNCs
97 are not that well behaved. do_cleanups should either be replaced
98 with a do_cleanups call (to cover the problem) or an assertion
99 check to detect bad FUNCs code. */
100 do_cleanups (ALL_CLEANUPS
);
101 /* If the command_loop returned, normally (rather than threw an
102 error) we try to quit. If the quit is aborted, catch_errors()
103 which called this catch the signal and restart the command
105 quit_command (NULL
, instream
== stdin
);
110 captured_main (void *data
)
112 struct captured_main_args
*context
= data
;
113 int argc
= context
->argc
;
114 char **argv
= context
->argv
;
116 static int quiet
= 0;
117 static int batch
= 0;
118 static int set_args
= 0;
120 /* Pointers to various arguments from command line. */
122 char *execarg
= NULL
;
123 char *corearg
= NULL
;
127 /* These are static so that we can take their address in an initializer. */
128 static int print_help
;
129 static int print_version
;
131 /* Pointers to all arguments of --command option. */
133 /* Allocated size of cmdarg. */
135 /* Number of elements of cmdarg used. */
138 /* Indices of all arguments of --directory option. */
140 /* Allocated size. */
142 /* Number of elements used. */
145 struct stat homebuf
, cwdbuf
;
146 char *homedir
, *homeinit
;
150 long time_at_startup
= get_run_time ();
152 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
153 setlocale (LC_MESSAGES
, "");
155 #if defined (HAVE_SETLOCALE)
156 setlocale (LC_CTYPE
, "");
158 bindtextdomain (PACKAGE
, LOCALEDIR
);
159 textdomain (PACKAGE
);
162 lim_at_start
= (char *) sbrk (0);
165 #if defined (ALIGN_STACK_ON_STARTUP)
166 i
= (int) &count
& 0x3;
172 cmdarg
= (char **) xmalloc (cmdsize
* sizeof (*cmdarg
));
175 dirarg
= (char **) xmalloc (dirsize
* sizeof (*dirarg
));
179 line
= (char *) xmalloc (linesize
);
180 line
[0] = '\0'; /* Terminate saved (now empty) cmd line */
183 getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
));
184 current_directory
= gdb_dirbuf
;
186 gdb_stdout
= stdio_fileopen (stdout
);
187 gdb_stderr
= stdio_fileopen (stderr
);
188 gdb_stdlog
= gdb_stderr
; /* for moment */
189 gdb_stdtarg
= gdb_stderr
; /* for moment */
190 gdb_stdin
= stdio_fileopen (stdin
);
191 gdb_stdtargerr
= gdb_stderr
; /* for moment */
192 gdb_stdtargin
= gdb_stdin
; /* for moment */
194 /* initialize error() */
197 /* Set the sysroot path. */
198 #ifdef TARGET_SYSTEM_ROOT_RELOCATABLE
199 gdb_sysroot
= make_relative_prefix (argv
[0], BINDIR
, TARGET_SYSTEM_ROOT
);
205 if (stat (gdb_sysroot
, &s
) == 0)
206 if (S_ISDIR (s
.st_mode
))
212 gdb_sysroot
= TARGET_SYSTEM_ROOT
;
216 gdb_sysroot
= TARGET_SYSTEM_ROOT
;
218 #if defined (TARGET_SYSTEM_ROOT)
219 gdb_sysroot
= TARGET_SYSTEM_ROOT
;
225 /* There will always be an interpreter. Either the one passed into
226 this captured main, or one specified by the user at start up, or
227 the console. Initialize the interpreter to the one requested by
229 interpreter_p
= xstrdup (context
->interpreter_p
);
231 /* Parse arguments and options. */
234 /* When var field is 0, use flag field to record the equivalent
235 short option (or arbitrary numbers starting at 10 for those
236 with no equivalent). */
246 static struct option long_options
[] =
249 {"tui", no_argument
, 0, OPT_TUI
},
251 {"xdb", no_argument
, &xdb_commands
, 1},
252 {"dbx", no_argument
, &dbx_commands
, 1},
253 {"readnow", no_argument
, &readnow_symbol_files
, 1},
254 {"r", no_argument
, &readnow_symbol_files
, 1},
255 {"quiet", no_argument
, &quiet
, 1},
256 {"q", no_argument
, &quiet
, 1},
257 {"silent", no_argument
, &quiet
, 1},
258 {"nx", no_argument
, &inhibit_gdbinit
, 1},
259 {"n", no_argument
, &inhibit_gdbinit
, 1},
260 {"batch", no_argument
, &batch
, 1},
261 {"epoch", no_argument
, &epoch_interface
, 1},
263 /* This is a synonym for "--annotate=1". --annotate is now preferred,
264 but keep this here for a long time because people will be running
265 emacses which use --fullname. */
266 {"fullname", no_argument
, 0, 'f'},
267 {"f", no_argument
, 0, 'f'},
269 {"annotate", required_argument
, 0, OPT_ANNOTATE
},
270 {"help", no_argument
, &print_help
, 1},
271 {"se", required_argument
, 0, OPT_SE
},
272 {"symbols", required_argument
, 0, 's'},
273 {"s", required_argument
, 0, 's'},
274 {"exec", required_argument
, 0, 'e'},
275 {"e", required_argument
, 0, 'e'},
276 {"core", required_argument
, 0, 'c'},
277 {"c", required_argument
, 0, 'c'},
278 {"pid", required_argument
, 0, 'p'},
279 {"p", required_argument
, 0, 'p'},
280 {"command", required_argument
, 0, 'x'},
281 {"version", no_argument
, &print_version
, 1},
282 {"x", required_argument
, 0, 'x'},
284 {"tclcommand", required_argument
, 0, 'z'},
285 {"enable-external-editor", no_argument
, 0, 'y'},
286 {"editor-command", required_argument
, 0, 'w'},
288 {"ui", required_argument
, 0, 'i'},
289 {"interpreter", required_argument
, 0, 'i'},
290 {"i", required_argument
, 0, 'i'},
291 {"directory", required_argument
, 0, 'd'},
292 {"d", required_argument
, 0, 'd'},
293 {"cd", required_argument
, 0, OPT_CD
},
294 {"tty", required_argument
, 0, 't'},
295 {"baud", required_argument
, 0, 'b'},
296 {"b", required_argument
, 0, 'b'},
297 {"nw", no_argument
, NULL
, OPT_NOWINDOWS
},
298 {"nowindows", no_argument
, NULL
, OPT_NOWINDOWS
},
299 {"w", no_argument
, NULL
, OPT_WINDOWS
},
300 {"windows", no_argument
, NULL
, OPT_WINDOWS
},
301 {"statistics", no_argument
, 0, OPT_STATISTICS
},
302 {"write", no_argument
, &write_files
, 1},
303 {"args", no_argument
, &set_args
, 1},
304 {"l", required_argument
, 0, 'l'},
305 {0, no_argument
, 0, 0}
312 c
= getopt_long_only (argc
, argv
, "",
313 long_options
, &option_index
);
314 if (c
== EOF
|| set_args
)
317 /* Long option that takes an argument. */
318 if (c
== 0 && long_options
[option_index
].flag
== 0)
319 c
= long_options
[option_index
].val
;
324 /* Long option that just sets a flag. */
334 /* FIXME: what if the syntax is wrong (e.g. not digits)? */
335 annotation_level
= atoi (optarg
);
338 /* Enable the display of both time and space usage. */
343 /* --tui is equivalent to -i=tui. */
344 xfree (interpreter_p
);
345 interpreter_p
= xstrdup ("tui");
348 /* FIXME: cagney/2003-03-01: Not sure if this option is
349 actually useful, and if it is, what it should do. */
353 /* -nw is equivalent to -i=console. */
354 xfree (interpreter_p
);
355 interpreter_p
= xstrdup (INTERP_CONSOLE
);
359 annotation_level
= 1;
360 /* We have probably been invoked from emacs. Disable window interface. */
373 /* "corearg" is shared by "--core" and "--pid" */
377 cmdarg
[ncmd
++] = optarg
;
381 cmdarg
= (char **) xrealloc ((char *) cmdarg
,
382 cmdsize
* sizeof (*cmdarg
));
388 extern int gdbtk_test (char *);
389 if (!gdbtk_test (optarg
))
391 fprintf_unfiltered (gdb_stderr
, _("%s: unable to load tclcommand file \"%s\""),
398 /* Backwards compatibility only. */
402 external_editor_command
= xstrdup (optarg
);
407 xfree (interpreter_p
);
408 interpreter_p
= xstrdup (optarg
);
411 dirarg
[ndir
++] = optarg
;
415 dirarg
= (char **) xrealloc ((char *) dirarg
,
416 dirsize
* sizeof (*dirarg
));
430 i
= strtol (optarg
, &p
, 0);
431 if (i
== 0 && p
== optarg
)
433 /* Don't use *_filtered or warning() (which relies on
434 current_target) until after initialize_all_files(). */
438 _("warning: could not set baud rate to `%s'.\n"), optarg
);
448 i
= strtol (optarg
, &p
, 0);
449 if (i
== 0 && p
== optarg
)
451 /* Don't use *_filtered or warning() (which relies on
452 current_target) until after initialize_all_files(). */
456 _("warning: could not set timeout limit to `%s'.\n"), optarg
);
463 fprintf_unfiltered (gdb_stderr
,
464 _("Use `%s --help' for a complete list of options.\n"),
470 /* If --help or --version, disable window interface. */
471 if (print_help
|| print_version
)
478 /* The remaining options are the command-line options for the
479 inferior. The first one is the sym/exec file, and the rest
483 fprintf_unfiltered (gdb_stderr
,
484 _("%s: `--args' specified but no program specified\n"),
488 symarg
= argv
[optind
];
489 execarg
= argv
[optind
];
491 set_inferior_args_vector (argc
- optind
, &argv
[optind
]);
495 /* OK, that's all the options. The other arguments are filenames. */
497 for (; optind
< argc
; optind
++)
501 symarg
= argv
[optind
];
502 execarg
= argv
[optind
];
505 /* The documentation says this can be a "ProcID" as well.
506 We will try it as both a corefile and a pid. */
507 corearg
= argv
[optind
];
510 fprintf_unfiltered (gdb_stderr
,
511 _("Excess command line arguments ignored. (%s%s)\n"),
512 argv
[optind
], (optind
== argc
- 1) ? "" : " ...");
520 /* Initialize all files. Give the interpreter a chance to take
521 control of the console via the deprecated_init_ui_hook(). */
524 /* Do these (and anything which might call wrap_here or *_filtered)
525 after initialize_all_files() but before the interpreter has been
526 installed. Otherwize the help/version messages will be eaten by
527 the interpreter's output handler. */
531 print_gdb_version (gdb_stdout
);
533 printf_filtered ("\n");
539 print_gdb_help (gdb_stdout
);
540 fputs_unfiltered ("\n", gdb_stdout
);
544 /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets
545 GDB retain the old MI1 interpreter startup behavior. Output the
546 copyright message before the interpreter is installed. That way
547 it isn't encapsulated in MI output. */
548 if (!quiet
&& strcmp (interpreter_p
, INTERP_MI1
) == 0)
550 /* Print all the junk at the top, with trailing "..." if we are about
551 to read a symbol file (possibly slowly). */
552 print_gdb_version (gdb_stdout
);
554 printf_filtered ("..");
556 gdb_flush (gdb_stdout
); /* Force to screen during slow operations */
560 /* Install the default UI. All the interpreters should have had a
561 look at things by now. Initialize the default interpreter. */
565 struct interp
*interp
= interp_lookup (interpreter_p
);
567 error ("Interpreter `%s' unrecognized", interpreter_p
);
569 if (!interp_set (interp
))
571 fprintf_unfiltered (gdb_stderr
,
572 "Interpreter `%s' failed to initialize.\n",
578 /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets
579 GDB retain the old MI1 interpreter startup behavior. Output the
580 copyright message after the interpreter is installed when it is
581 any sane interpreter. */
582 if (!quiet
&& !current_interp_named_p (INTERP_MI1
))
584 /* Print all the junk at the top, with trailing "..." if we are about
585 to read a symbol file (possibly slowly). */
586 print_gdb_version (gdb_stdout
);
588 printf_filtered ("..");
590 gdb_flush (gdb_stdout
); /* Force to screen during slow operations */
593 error_pre_print
= "\n\n";
594 quit_pre_print
= error_pre_print
;
596 /* We may get more than one warning, don't double space all of them... */
597 warning_pre_print
= _("\nwarning: ");
599 /* Read and execute $HOME/.gdbinit file, if it exists. This is done
600 *before* all the command line arguments are processed; it sets
601 global parameters, which are independent of what file you are
602 debugging or what directory you are in. */
603 homedir
= getenv ("HOME");
606 homeinit
= (char *) alloca (strlen (homedir
) +
607 strlen (gdbinit
) + 10);
608 strcpy (homeinit
, homedir
);
609 strcat (homeinit
, "/");
610 strcat (homeinit
, gdbinit
);
612 if (!inhibit_gdbinit
)
614 catch_command_errors (source_command
, homeinit
, 0, RETURN_MASK_ALL
);
617 /* Do stats; no need to do them elsewhere since we'll only
618 need them if homedir is set. Make sure that they are
619 zero in case one of them fails (this guarantees that they
620 won't match if either exists). */
622 memset (&homebuf
, 0, sizeof (struct stat
));
623 memset (&cwdbuf
, 0, sizeof (struct stat
));
625 stat (homeinit
, &homebuf
);
626 stat (gdbinit
, &cwdbuf
); /* We'll only need this if
630 /* Now perform all the actions indicated by the arguments. */
633 catch_command_errors (cd_command
, cdarg
, 0, RETURN_MASK_ALL
);
636 for (i
= 0; i
< ndir
; i
++)
637 catch_command_errors (directory_command
, dirarg
[i
], 0, RETURN_MASK_ALL
);
642 && strcmp (execarg
, symarg
) == 0)
644 /* The exec file and the symbol-file are the same. If we can't
645 open it, better only print one error message.
646 catch_command_errors returns non-zero on success! */
647 if (catch_command_errors (exec_file_attach
, execarg
, !batch
, RETURN_MASK_ALL
))
648 catch_command_errors (symbol_file_add_main
, symarg
, 0, RETURN_MASK_ALL
);
653 catch_command_errors (exec_file_attach
, execarg
, !batch
, RETURN_MASK_ALL
);
655 catch_command_errors (symbol_file_add_main
, symarg
, 0, RETURN_MASK_ALL
);
658 /* After the symbol file has been read, print a newline to get us
659 beyond the copyright line... But errors should still set off
660 the error message with a (single) blank line. */
662 printf_filtered ("\n");
663 error_pre_print
= "\n";
664 quit_pre_print
= error_pre_print
;
665 warning_pre_print
= _("\nwarning: ");
669 /* corearg may be either a corefile or a pid.
670 If its first character is a digit, try attach first
671 and then corefile. Otherwise try corefile first. */
673 if (isdigit (corearg
[0]))
675 if (catch_command_errors (attach_command
, corearg
,
676 !batch
, RETURN_MASK_ALL
) == 0)
677 catch_command_errors (core_file_command
, corearg
,
678 !batch
, RETURN_MASK_ALL
);
680 else /* Can't be a pid, better be a corefile. */
681 catch_command_errors (core_file_command
, corearg
,
682 !batch
, RETURN_MASK_ALL
);
686 catch_command_errors (tty_command
, ttyarg
, !batch
, RETURN_MASK_ALL
);
688 /* Error messages should no longer be distinguished with extra output. */
689 error_pre_print
= NULL
;
690 quit_pre_print
= NULL
;
691 warning_pre_print
= _("warning: ");
693 /* Read the .gdbinit file in the current directory, *if* it isn't
694 the same as the $HOME/.gdbinit file (it should exist, also). */
697 || memcmp ((char *) &homebuf
, (char *) &cwdbuf
, sizeof (struct stat
)))
698 if (!inhibit_gdbinit
)
700 catch_command_errors (source_command
, gdbinit
, 0, RETURN_MASK_ALL
);
703 for (i
= 0; i
< ncmd
; i
++)
706 /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that
707 expanded into a call to setjmp(). */
708 if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */
710 /* NOTE: I am commenting this out, because it is not clear
711 where this feature is used. It is very old and
712 undocumented. ezannoni: 1999-05-04 */
714 if (cmdarg
[i
][0] == '-' && cmdarg
[i
][1] == '\0')
715 read_command_file (stdin
);
718 source_command (cmdarg
[i
], !batch
);
719 do_cleanups (ALL_CLEANUPS
);
722 catch_command_errors (source_command
, cmdarg
[i
], !batch
, RETURN_MASK_ALL
);
726 /* Read in the old history after all the command files have been read. */
732 /* Either there was a problem executing the command in the
733 batch file aborted early, or the batch file forgot to do an
734 explicit detach. Explicitly detach the inferior ensuring
735 that there are no zombies. */
736 target_detach (NULL
, 0);
738 /* We have hit the end of the batch file. */
742 /* Do any host- or target-specific hacks. This is used for i960 targets
743 to force the user to set a nindy target and spec its parameters. */
745 #ifdef BEFORE_MAIN_LOOP_HOOK
746 BEFORE_MAIN_LOOP_HOOK
;
749 /* Show time and/or space usage. */
753 long init_time
= get_run_time () - time_at_startup
;
755 printf_unfiltered (_("Startup time: %ld.%06ld\n"),
756 init_time
/ 1000000, init_time
% 1000000);
762 extern char **environ
;
763 char *lim
= (char *) sbrk (0);
765 printf_unfiltered (_("Startup size: data size %ld\n"),
766 (long) (lim
- (char *) &environ
));
771 /* FIXME: cagney/1999-11-06: The original main loop was like: */
774 if (!SET_TOP_LEVEL ())
776 do_cleanups (ALL_CLEANUPS
); /* Do complete cleanup */
777 /* GUIs generally have their own command loop, mainloop, or whatever.
778 This is a good place to gain control because many error
779 conditions will end up here via longjmp(). */
780 if (deprecated_command_loop_hook
)
781 deprecated_command_loop_hook ();
783 deprecated_command_loop ();
784 quit_command ((char *) 0, instream
== stdin
);
787 /* NOTE: If the command_loop() returned normally, the loop would
788 attempt to exit by calling the function quit_command(). That
789 function would either call exit() or throw an error returning
790 control to SET_TOP_LEVEL. */
791 /* NOTE: The function do_cleanups() was called once each time round
792 the loop. The usefulness of the call isn't clear. If an error
793 was thrown, everything would have already been cleaned up. If
794 command_loop() returned normally and quit_command() was called,
795 either exit() or error() (again cleaning up) would be called. */
797 /* NOTE: cagney/1999-11-07: There is probably no reason for not
798 moving this loop and the code found in captured_command_loop()
799 into the command_loop() proper. The main thing holding back that
800 change - SET_TOP_LEVEL() - has been eliminated. */
803 catch_errors (captured_command_loop
, 0, "", RETURN_MASK_ALL
);
805 /* No exit -- exit is through quit_command. */
809 gdb_main (struct captured_main_args
*args
)
811 use_windows
= args
->use_windows
;
812 catch_errors (captured_main
, args
, "", RETURN_MASK_ALL
);
813 /* The only way to end up here is by an error (normal exit is
814 handled by quit_force()), hence always return an error status. */
819 /* Don't use *_filtered for printing help. We don't want to prompt
820 for continue no matter how small the screen or how much we're going
824 print_gdb_help (struct ui_file
*stream
)
826 fputs_unfiltered (_("\
827 This is the GNU debugger. Usage:\n\n\
828 gdb [options] [executable-file [core-file or process-id]]\n\
829 gdb [options] --args executable-file [inferior-arguments ...]\n\n\
832 fputs_unfiltered (_("\
833 --args Arguments after executable-file are passed to inferior\n\
835 fputs_unfiltered (_("\
836 --[no]async Enable (disable) asynchronous version of CLI\n\
838 fputs_unfiltered (_("\
839 -b BAUDRATE Set serial port baud rate used for remote debugging.\n\
840 --batch Exit after processing options.\n\
841 --cd=DIR Change current directory to DIR.\n\
842 --command=FILE Execute GDB commands from FILE.\n\
843 --core=COREFILE Analyze the core dump COREFILE.\n\
844 --pid=PID Attach to running process PID.\n\
846 fputs_unfiltered (_("\
847 --dbx DBX compatibility mode.\n\
848 --directory=DIR Search for source files in DIR.\n\
849 --epoch Output information used by epoch emacs-GDB interface.\n\
850 --exec=EXECFILE Use EXECFILE as the executable.\n\
851 --fullname Output information used by emacs-GDB interface.\n\
852 --help Print this message.\n\
854 fputs_unfiltered (_("\
855 --interpreter=INTERP\n\
856 Select a specific interpreter / user interface\n\
858 fputs_unfiltered (_("\
859 -l TIMEOUT Set timeout in seconds for remote debugging.\n\
860 --mapped Use mapped symbol files if supported on this system.\n\
861 --nw Do not use a window interface.\n\
862 --nx Do not read "), stream
);
863 fputs_unfiltered (gdbinit
, stream
);
864 fputs_unfiltered (_(" file.\n\
865 --quiet Do not print version number on startup.\n\
866 --readnow Fully read symbol files on first access.\n\
868 fputs_unfiltered (_("\
869 --se=FILE Use FILE as symbol file and executable file.\n\
870 --symbols=SYMFILE Read symbols from SYMFILE.\n\
871 --tty=TTY Use TTY for input/output by the program being debugged.\n\
874 fputs_unfiltered (_("\
875 --tui Use a terminal user interface.\n\
878 fputs_unfiltered (_("\
879 --version Print version information and then exit.\n\
880 -w Use a window interface.\n\
881 --write Set writing into executable and core files.\n\
882 --xdb XDB compatibility mode.\n\
884 fputs_unfiltered (_("\n\
885 For more information, type \"help\" from within GDB, or consult the\n\
886 GDB manual (available as on-line info or a printed manual).\n\
887 Report bugs to \"bug-gdb@gnu.org\".\