1 /* Top level stuff for GDB, the GNU debugger.
3 Copyright (C) 1986-2005, 2007-2012 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/>. */
27 #include "exceptions.h"
30 #include <sys/types.h>
34 #include "gdb_string.h"
35 #include "event-loop.h"
41 #include "cli/cli-cmds.h"
42 #include "python/python.h"
45 /* The selected interpreter. This will be used as a set command
46 variable, so it should always be malloc'ed - since
47 do_setshow_command will free it. */
50 /* Whether xdb commands will be handled. */
53 /* Whether dbx commands will be handled. */
56 /* System root path, used to find libraries etc. */
57 char *gdb_sysroot
= 0;
59 /* GDB datadir, used to store data files. */
60 char *gdb_datadir
= 0;
62 /* If gdb was configured with --with-python=/path,
63 the possibly relocated path to python's lib directory. */
64 char *python_libdir
= 0;
66 struct ui_file
*gdb_stdout
;
67 struct ui_file
*gdb_stderr
;
68 struct ui_file
*gdb_stdlog
;
69 struct ui_file
*gdb_stdin
;
70 /* Target IO streams. */
71 struct ui_file
*gdb_stdtargin
;
72 struct ui_file
*gdb_stdtarg
;
73 struct ui_file
*gdb_stdtargerr
;
75 /* True if --batch or --batch-silent was seen. */
78 /* Support for the --batch-silent option. */
81 /* Support for --return-child-result option.
82 Set the default to -1 to return error in the case
83 that the program does not run or does not complete. */
84 int return_child_result
= 0;
85 int return_child_result_value
= -1;
87 /* Whether to enable writing into executable and core files. */
88 extern int write_files
;
90 /* GDB as it has been invoked from the command line (i.e. argv[0]). */
91 static char *gdb_program_name
;
93 static void print_gdb_help (struct ui_file
*);
95 /* These two are used to set the external editor commands when gdb is
96 farming out files to be edited by another program. */
98 extern char *external_editor_command
;
100 /* Relocate a file or directory. PROGNAME is the name by which gdb
101 was invoked (i.e., argv[0]). INITIAL is the default value for the
102 file or directory. FLAG is true if the value is relocatable, false
103 otherwise. Returns a newly allocated string; this may return NULL
104 under the same conditions as make_relative_prefix. */
107 relocate_path (const char *progname
, const char *initial
, int flag
)
110 return make_relative_prefix (progname
, BINDIR
, initial
);
111 return xstrdup (initial
);
114 /* Like relocate_path, but specifically checks for a directory.
115 INITIAL is relocated according to the rules of relocate_path. If
116 the result is a directory, it is used; otherwise, INITIAL is used.
117 The chosen directory is then canonicalized using lrealpath. This
118 function always returns a newly-allocated string. */
121 relocate_gdb_directory (const char *initial
, int flag
)
125 dir
= relocate_path (gdb_program_name
, initial
, flag
);
130 if (stat (dir
, &s
) != 0 || !S_ISDIR (s
.st_mode
))
137 dir
= xstrdup (initial
);
139 /* Canonicalize the directory. */
142 char *canon_sysroot
= lrealpath (dir
);
154 /* Compute the locations of init files that GDB should source and
155 return them in SYSTEM_GDBINIT, HOME_GDBINIT, LOCAL_GDBINIT. If
156 there is no system gdbinit (resp. home gdbinit and local gdbinit)
157 to be loaded, then SYSTEM_GDBINIT (resp. HOME_GDBINIT and
158 LOCAL_GDBINIT) is set to NULL. */
160 get_init_files (char **system_gdbinit
,
162 char **local_gdbinit
)
164 static char *sysgdbinit
= NULL
;
165 static char *homeinit
= NULL
;
166 static char *localinit
= NULL
;
167 static int initialized
= 0;
171 struct stat homebuf
, cwdbuf
, s
;
172 char *homedir
, *relocated_sysgdbinit
;
174 if (SYSTEM_GDBINIT
[0])
176 relocated_sysgdbinit
= relocate_path (gdb_program_name
,
178 SYSTEM_GDBINIT_RELOCATABLE
);
179 if (relocated_sysgdbinit
&& stat (relocated_sysgdbinit
, &s
) == 0)
180 sysgdbinit
= relocated_sysgdbinit
;
182 xfree (relocated_sysgdbinit
);
185 homedir
= getenv ("HOME");
187 /* If the .gdbinit file in the current directory is the same as
188 the $HOME/.gdbinit file, it should not be sourced. homebuf
189 and cwdbuf are used in that purpose. Make sure that the stats
190 are zero in case one of them fails (this guarantees that they
191 won't match if either exists). */
193 memset (&homebuf
, 0, sizeof (struct stat
));
194 memset (&cwdbuf
, 0, sizeof (struct stat
));
198 homeinit
= xstrprintf ("%s/%s", homedir
, gdbinit
);
199 if (stat (homeinit
, &homebuf
) != 0)
206 if (stat (gdbinit
, &cwdbuf
) == 0)
209 || memcmp ((char *) &homebuf
, (char *) &cwdbuf
,
210 sizeof (struct stat
)))
217 *system_gdbinit
= sysgdbinit
;
218 *home_gdbinit
= homeinit
;
219 *local_gdbinit
= localinit
;
222 /* Call command_loop. If it happens to return, pass that through as a
223 non-zero return status. */
226 captured_command_loop (void *data
)
228 /* Top-level execution commands can be run on the background from
230 interpreter_async
= 1;
232 current_interp_command_loop ();
233 /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
234 would clean things up (restoring the cleanup chain) to the state
235 they were just prior to the call. Technically, this means that
236 the do_cleanups() below is redundant. Unfortunately, many FUNCs
237 are not that well behaved. do_cleanups should either be replaced
238 with a do_cleanups call (to cover the problem) or an assertion
239 check to detect bad FUNCs code. */
240 do_cleanups (ALL_CLEANUPS
);
241 /* If the command_loop returned, normally (rather than threw an
242 error) we try to quit. If the quit is aborted, catch_errors()
243 which called this catch the signal and restart the command
245 quit_command (NULL
, instream
== stdin
);
250 captured_main (void *data
)
252 struct captured_main_args
*context
= data
;
253 int argc
= context
->argc
;
254 char **argv
= context
->argv
;
255 static int quiet
= 0;
256 static int set_args
= 0;
258 /* Pointers to various arguments from command line. */
260 char *execarg
= NULL
;
262 char *corearg
= NULL
;
263 char *pid_or_core_arg
= NULL
;
267 /* These are static so that we can take their address in an
269 static int print_help
;
270 static int print_version
;
272 /* Pointers to all arguments of --command option. */
280 /* Allocated size of cmdarg. */
282 /* Number of elements of cmdarg used. */
285 /* Indices of all arguments of --directory option. */
287 /* Allocated size. */
289 /* Number of elements used. */
292 /* gdb init files. */
293 char *system_gdbinit
;
299 struct objfile
*objfile
;
301 struct cleanup
*pre_stat_chain
;
304 /* Set this before calling make_command_stats_cleanup. */
305 lim_at_start
= (char *) sbrk (0);
308 pre_stat_chain
= make_command_stats_cleanup (0);
310 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
311 setlocale (LC_MESSAGES
, "");
313 #if defined (HAVE_SETLOCALE)
314 setlocale (LC_CTYPE
, "");
316 bindtextdomain (PACKAGE
, LOCALEDIR
);
317 textdomain (PACKAGE
);
320 cmdarg
= (struct cmdarg
*) xmalloc (cmdsize
* sizeof (*cmdarg
));
323 dirarg
= (char **) xmalloc (dirsize
* sizeof (*dirarg
));
327 saved_command_line
= (char *) xmalloc (saved_command_line_size
);
328 saved_command_line
[0] = '\0';
331 gdb_stdout
= stdio_fileopen (stdout
);
332 gdb_stderr
= stdio_fileopen (stderr
);
333 gdb_stdlog
= gdb_stderr
; /* for moment */
334 gdb_stdtarg
= gdb_stderr
; /* for moment */
335 gdb_stdin
= stdio_fileopen (stdin
);
336 gdb_stdtargerr
= gdb_stderr
; /* for moment */
337 gdb_stdtargin
= gdb_stdin
; /* for moment */
339 gdb_program_name
= xstrdup (argv
[0]);
341 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
342 /* Don't use *_filtered or warning() (which relies on
343 current_target) until after initialize_all_files(). */
344 fprintf_unfiltered (gdb_stderr
,
345 _("%s: warning: error finding "
346 "working directory: %s\n"),
347 argv
[0], safe_strerror (errno
));
349 current_directory
= gdb_dirbuf
;
351 /* Set the sysroot path. */
352 gdb_sysroot
= relocate_gdb_directory (TARGET_SYSTEM_ROOT
,
353 TARGET_SYSTEM_ROOT_RELOCATABLE
);
355 debug_file_directory
= relocate_gdb_directory (DEBUGDIR
,
356 DEBUGDIR_RELOCATABLE
);
358 gdb_datadir
= relocate_gdb_directory (GDB_DATADIR
,
359 GDB_DATADIR_RELOCATABLE
);
361 #ifdef WITH_PYTHON_PATH
363 /* For later use in helping Python find itself. */
364 char *tmp
= concat (WITH_PYTHON_PATH
, SLASH_STRING
, "lib", NULL
);
366 python_libdir
= relocate_gdb_directory (tmp
, PYTHON_PATH_RELOCATABLE
);
372 add_substitute_path_rule (RELOC_SRCDIR
,
373 make_relative_prefix (argv
[0], BINDIR
,
377 /* There will always be an interpreter. Either the one passed into
378 this captured main, or one specified by the user at start up, or
379 the console. Initialize the interpreter to the one requested by
381 interpreter_p
= xstrdup (context
->interpreter_p
);
383 /* Parse arguments and options. */
386 /* When var field is 0, use flag field to record the equivalent
387 short option (or arbitrary numbers starting at 10 for those
388 with no equivalent). */
398 static struct option long_options
[] =
400 {"tui", no_argument
, 0, OPT_TUI
},
401 {"xdb", no_argument
, &xdb_commands
, 1},
402 {"dbx", no_argument
, &dbx_commands
, 1},
403 {"readnow", no_argument
, &readnow_symbol_files
, 1},
404 {"r", no_argument
, &readnow_symbol_files
, 1},
405 {"quiet", no_argument
, &quiet
, 1},
406 {"q", no_argument
, &quiet
, 1},
407 {"silent", no_argument
, &quiet
, 1},
408 {"nx", no_argument
, &inhibit_gdbinit
, 1},
409 {"n", no_argument
, &inhibit_gdbinit
, 1},
410 {"batch-silent", no_argument
, 0, 'B'},
411 {"batch", no_argument
, &batch_flag
, 1},
412 {"epoch", no_argument
, &epoch_interface
, 1},
414 /* This is a synonym for "--annotate=1". --annotate is now
415 preferred, but keep this here for a long time because people
416 will be running emacses which use --fullname. */
417 {"fullname", no_argument
, 0, 'f'},
418 {"f", no_argument
, 0, 'f'},
420 {"annotate", required_argument
, 0, OPT_ANNOTATE
},
421 {"help", no_argument
, &print_help
, 1},
422 {"se", required_argument
, 0, OPT_SE
},
423 {"symbols", required_argument
, 0, 's'},
424 {"s", required_argument
, 0, 's'},
425 {"exec", required_argument
, 0, 'e'},
426 {"e", required_argument
, 0, 'e'},
427 {"core", required_argument
, 0, 'c'},
428 {"c", required_argument
, 0, 'c'},
429 {"pid", required_argument
, 0, 'p'},
430 {"p", required_argument
, 0, 'p'},
431 {"command", required_argument
, 0, 'x'},
432 {"eval-command", required_argument
, 0, 'X'},
433 {"version", no_argument
, &print_version
, 1},
434 {"x", required_argument
, 0, 'x'},
435 {"ex", required_argument
, 0, 'X'},
437 {"tclcommand", required_argument
, 0, 'z'},
438 {"enable-external-editor", no_argument
, 0, 'y'},
439 {"editor-command", required_argument
, 0, 'w'},
441 {"ui", required_argument
, 0, 'i'},
442 {"interpreter", required_argument
, 0, 'i'},
443 {"i", required_argument
, 0, 'i'},
444 {"directory", required_argument
, 0, 'd'},
445 {"d", required_argument
, 0, 'd'},
446 {"data-directory", required_argument
, 0, 'D'},
447 {"cd", required_argument
, 0, OPT_CD
},
448 {"tty", required_argument
, 0, 't'},
449 {"baud", required_argument
, 0, 'b'},
450 {"b", required_argument
, 0, 'b'},
451 {"nw", no_argument
, NULL
, OPT_NOWINDOWS
},
452 {"nowindows", no_argument
, NULL
, OPT_NOWINDOWS
},
453 {"w", no_argument
, NULL
, OPT_WINDOWS
},
454 {"windows", no_argument
, NULL
, OPT_WINDOWS
},
455 {"statistics", no_argument
, 0, OPT_STATISTICS
},
456 {"write", no_argument
, &write_files
, 1},
457 {"args", no_argument
, &set_args
, 1},
458 {"l", required_argument
, 0, 'l'},
459 {"return-child-result", no_argument
, &return_child_result
, 1},
460 {0, no_argument
, 0, 0}
467 c
= getopt_long_only (argc
, argv
, "",
468 long_options
, &option_index
);
469 if (c
== EOF
|| set_args
)
472 /* Long option that takes an argument. */
473 if (c
== 0 && long_options
[option_index
].flag
== 0)
474 c
= long_options
[option_index
].val
;
479 /* Long option that just sets a flag. */
489 /* FIXME: what if the syntax is wrong (e.g. not digits)? */
490 annotation_level
= atoi (optarg
);
493 /* Enable the display of both time and space usage. */
494 set_display_time (1);
495 set_display_space (1);
498 /* --tui is equivalent to -i=tui. */
500 xfree (interpreter_p
);
501 interpreter_p
= xstrdup (INTERP_TUI
);
503 fprintf_unfiltered (gdb_stderr
,
504 _("%s: TUI mode is not supported\n"),
510 /* FIXME: cagney/2003-03-01: Not sure if this option is
511 actually useful, and if it is, what it should do. */
513 /* --windows is equivalent to -i=insight. */
514 xfree (interpreter_p
);
515 interpreter_p
= xstrdup (INTERP_INSIGHT
);
520 /* -nw is equivalent to -i=console. */
521 xfree (interpreter_p
);
522 interpreter_p
= xstrdup (INTERP_CONSOLE
);
526 annotation_level
= 1;
527 /* We have probably been invoked from emacs. Disable
544 cmdarg
[ncmd
].type
= CMDARG_FILE
;
545 cmdarg
[ncmd
++].string
= optarg
;
549 cmdarg
= xrealloc ((char *) cmdarg
,
550 cmdsize
* sizeof (*cmdarg
));
554 cmdarg
[ncmd
].type
= CMDARG_COMMAND
;
555 cmdarg
[ncmd
++].string
= optarg
;
559 cmdarg
= xrealloc ((char *) cmdarg
,
560 cmdsize
* sizeof (*cmdarg
));
564 batch_flag
= batch_silent
= 1;
565 gdb_stdout
= ui_file_new();
569 gdb_datadir
= xstrdup (optarg
);
574 extern int gdbtk_test (char *);
576 if (!gdbtk_test (optarg
))
578 fprintf_unfiltered (gdb_stderr
,
579 _("%s: unable to load "
580 "tclcommand file \"%s\""),
587 /* Backwards compatibility only. */
591 external_editor_command
= xstrdup (optarg
);
596 xfree (interpreter_p
);
597 interpreter_p
= xstrdup (optarg
);
600 dirarg
[ndir
++] = optarg
;
604 dirarg
= (char **) xrealloc ((char *) dirarg
,
605 dirsize
* sizeof (*dirarg
));
619 i
= strtol (optarg
, &p
, 0);
620 if (i
== 0 && p
== optarg
)
622 /* Don't use *_filtered or warning() (which relies on
623 current_target) until after initialize_all_files(). */
627 _("warning: could not set baud rate to `%s'.\n"), optarg
);
637 i
= strtol (optarg
, &p
, 0);
638 if (i
== 0 && p
== optarg
)
640 /* Don't use *_filtered or warning() (which relies on
641 current_target) until after initialize_all_files(). */
643 fprintf_unfiltered (gdb_stderr
,
644 _("warning: could not set "
645 "timeout limit to `%s'.\n"), optarg
);
652 fprintf_unfiltered (gdb_stderr
,
653 _("Use `%s --help' for a "
654 "complete list of options.\n"),
660 /* If --help or --version, disable window interface. */
661 if (print_help
|| print_version
)
670 /* Initialize all files. Give the interpreter a chance to take
671 control of the console via the deprecated_init_ui_hook (). */
674 /* Now that gdb_init has created the initial inferior, we're in
675 position to set args for that inferior. */
678 /* The remaining options are the command-line options for the
679 inferior. The first one is the sym/exec file, and the rest
683 fprintf_unfiltered (gdb_stderr
,
684 _("%s: `--args' specified but "
685 "no program specified\n"),
689 symarg
= argv
[optind
];
690 execarg
= argv
[optind
];
692 set_inferior_args_vector (argc
- optind
, &argv
[optind
]);
696 /* OK, that's all the options. */
698 /* The first argument, if specified, is the name of the
702 symarg
= argv
[optind
];
703 execarg
= argv
[optind
];
707 /* If the user hasn't already specified a PID or the name of a
708 core file, then a second optional argument is allowed. If
709 present, this argument should be interpreted as either a
710 PID or a core file, whichever works. */
711 if (pidarg
== NULL
&& corearg
== NULL
&& optind
< argc
)
713 pid_or_core_arg
= argv
[optind
];
717 /* Any argument left on the command line is unexpected and
718 will be ignored. Inform the user. */
720 fprintf_unfiltered (gdb_stderr
,
721 _("Excess command line "
722 "arguments ignored. (%s%s)\n"),
724 (optind
== argc
- 1) ? "" : " ...");
727 /* Lookup gdbinit files. Note that the gdbinit file name may be
728 overriden during file initialization, so get_init_files should be
729 called after gdb_init. */
730 get_init_files (&system_gdbinit
, &home_gdbinit
, &local_gdbinit
);
732 /* Do these (and anything which might call wrap_here or *_filtered)
733 after initialize_all_files() but before the interpreter has been
734 installed. Otherwize the help/version messages will be eaten by
735 the interpreter's output handler. */
739 print_gdb_version (gdb_stdout
);
741 printf_filtered ("\n");
747 print_gdb_help (gdb_stdout
);
748 fputs_unfiltered ("\n", gdb_stdout
);
752 /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets
753 GDB retain the old MI1 interpreter startup behavior. Output the
754 copyright message before the interpreter is installed. That way
755 it isn't encapsulated in MI output. */
756 if (!quiet
&& strcmp (interpreter_p
, INTERP_MI1
) == 0)
758 /* Print all the junk at the top, with trailing "..." if we are
759 about to read a symbol file (possibly slowly). */
760 print_gdb_version (gdb_stdout
);
762 printf_filtered ("..");
764 printf_filtered ("\n");
765 gdb_flush (gdb_stdout
); /* Force to screen during slow
769 /* Install the default UI. All the interpreters should have had a
770 look at things by now. Initialize the default interpreter. */
774 struct interp
*interp
= interp_lookup (interpreter_p
);
777 error (_("Interpreter `%s' unrecognized"), interpreter_p
);
779 if (!interp_set (interp
, 1))
781 fprintf_unfiltered (gdb_stderr
,
782 "Interpreter `%s' failed to initialize.\n",
788 /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets
789 GDB retain the old MI1 interpreter startup behavior. Output the
790 copyright message after the interpreter is installed when it is
791 any sane interpreter. */
792 if (!quiet
&& !current_interp_named_p (INTERP_MI1
))
794 /* Print all the junk at the top, with trailing "..." if we are
795 about to read a symbol file (possibly slowly). */
796 print_gdb_version (gdb_stdout
);
798 printf_filtered ("..");
800 printf_filtered ("\n");
801 gdb_flush (gdb_stdout
); /* Force to screen during slow
805 /* Set off error and warning messages with a blank line. */
806 error_pre_print
= "\n";
807 quit_pre_print
= error_pre_print
;
808 warning_pre_print
= _("\nwarning: ");
810 /* Read and execute the system-wide gdbinit file, if it exists.
811 This is done *before* all the command line arguments are
812 processed; it sets global parameters, which are independent of
813 what file you are debugging or what directory you are in. */
814 if (system_gdbinit
&& !inhibit_gdbinit
)
815 catch_command_errors (source_script
, system_gdbinit
, 0, RETURN_MASK_ALL
);
817 /* Read and execute $HOME/.gdbinit file, if it exists. This is done
818 *before* all the command line arguments are processed; it sets
819 global parameters, which are independent of what file you are
820 debugging or what directory you are in. */
822 if (home_gdbinit
&& !inhibit_gdbinit
)
823 catch_command_errors (source_script
, home_gdbinit
, 0, RETURN_MASK_ALL
);
825 /* Now perform all the actions indicated by the arguments. */
828 catch_command_errors (cd_command
, cdarg
, 0, RETURN_MASK_ALL
);
831 for (i
= 0; i
< ndir
; i
++)
832 catch_command_errors (directory_switch
, dirarg
[i
], 0, RETURN_MASK_ALL
);
835 /* Skip auto-loading section-specified scripts until we've sourced
836 local_gdbinit (which is often used to augment the source search
838 save_auto_load
= gdbpy_global_auto_load
;
839 gdbpy_global_auto_load
= 0;
843 && strcmp (execarg
, symarg
) == 0)
845 /* The exec file and the symbol-file are the same. If we can't
846 open it, better only print one error message.
847 catch_command_errors returns non-zero on success! */
848 if (catch_command_errors (exec_file_attach
, execarg
,
849 !batch_flag
, RETURN_MASK_ALL
))
850 catch_command_errors (symbol_file_add_main
, symarg
,
851 !batch_flag
, RETURN_MASK_ALL
);
856 catch_command_errors (exec_file_attach
, execarg
,
857 !batch_flag
, RETURN_MASK_ALL
);
859 catch_command_errors (symbol_file_add_main
, symarg
,
860 !batch_flag
, RETURN_MASK_ALL
);
863 if (corearg
&& pidarg
)
864 error (_("Can't attach to process and specify "
865 "a core file at the same time."));
868 catch_command_errors (core_file_command
, corearg
,
869 !batch_flag
, RETURN_MASK_ALL
);
870 else if (pidarg
!= NULL
)
871 catch_command_errors (attach_command
, pidarg
,
872 !batch_flag
, RETURN_MASK_ALL
);
873 else if (pid_or_core_arg
)
875 /* The user specified 'gdb program pid' or gdb program core'.
876 If pid_or_core_arg's first character is a digit, try attach
877 first and then corefile. Otherwise try just corefile. */
879 if (isdigit (pid_or_core_arg
[0]))
881 if (catch_command_errors (attach_command
, pid_or_core_arg
,
882 !batch_flag
, RETURN_MASK_ALL
) == 0)
883 catch_command_errors (core_file_command
, pid_or_core_arg
,
884 !batch_flag
, RETURN_MASK_ALL
);
886 else /* Can't be a pid, better be a corefile. */
887 catch_command_errors (core_file_command
, pid_or_core_arg
,
888 !batch_flag
, RETURN_MASK_ALL
);
892 set_inferior_io_terminal (ttyarg
);
894 /* Error messages should no longer be distinguished with extra output. */
895 error_pre_print
= NULL
;
896 quit_pre_print
= NULL
;
897 warning_pre_print
= _("warning: ");
899 /* Read the .gdbinit file in the current directory, *if* it isn't
900 the same as the $HOME/.gdbinit file (it should exist, also). */
901 if (local_gdbinit
&& !inhibit_gdbinit
)
902 catch_command_errors (source_script
, local_gdbinit
, 0, RETURN_MASK_ALL
);
904 /* Now that all .gdbinit's have been read and all -d options have been
905 processed, we can read any scripts mentioned in SYMARG.
906 We wait until now because it is common to add to the source search
907 path in local_gdbinit. */
908 gdbpy_global_auto_load
= save_auto_load
;
909 ALL_OBJFILES (objfile
)
910 load_auto_scripts_for_objfile (objfile
);
912 for (i
= 0; i
< ncmd
; i
++)
914 if (cmdarg
[i
].type
== CMDARG_FILE
)
915 catch_command_errors (source_script
, cmdarg
[i
].string
,
916 !batch_flag
, RETURN_MASK_ALL
);
917 else /* cmdarg[i].type == CMDARG_COMMAND */
918 catch_command_errors (execute_command
, cmdarg
[i
].string
,
919 !batch_flag
, RETURN_MASK_ALL
);
923 /* Read in the old history after all the command files have been
929 /* We have hit the end of the batch file. */
930 quit_force (NULL
, 0);
933 /* Show time and/or space usage. */
934 do_cleanups (pre_stat_chain
);
936 /* NOTE: cagney/1999-11-07: There is probably no reason for not
937 moving this loop and the code found in captured_command_loop()
938 into the command_loop() proper. The main thing holding back that
939 change - SET_TOP_LEVEL() - has been eliminated. */
942 catch_errors (captured_command_loop
, 0, "", RETURN_MASK_ALL
);
944 /* No exit -- exit is through quit_command. */
948 gdb_main (struct captured_main_args
*args
)
950 use_windows
= args
->use_windows
;
951 catch_errors (captured_main
, args
, "", RETURN_MASK_ALL
);
952 /* The only way to end up here is by an error (normal exit is
953 handled by quit_force()), hence always return an error status. */
958 /* Don't use *_filtered for printing help. We don't want to prompt
959 for continue no matter how small the screen or how much we're going
963 print_gdb_help (struct ui_file
*stream
)
965 char *system_gdbinit
;
969 get_init_files (&system_gdbinit
, &home_gdbinit
, &local_gdbinit
);
971 fputs_unfiltered (_("\
972 This is the GNU debugger. Usage:\n\n\
973 gdb [options] [executable-file [core-file or process-id]]\n\
974 gdb [options] --args executable-file [inferior-arguments ...]\n\n\
977 fputs_unfiltered (_("\
978 --args Arguments after executable-file are passed to inferior\n\
980 fputs_unfiltered (_("\
981 -b BAUDRATE Set serial port baud rate used for remote debugging.\n\
982 --batch Exit after processing options.\n\
983 --batch-silent As for --batch, but suppress all gdb stdout output.\n\
984 --return-child-result\n\
985 GDB exit code will be the child's exit code.\n\
986 --cd=DIR Change current directory to DIR.\n\
987 --command=FILE, -x Execute GDB commands from FILE.\n\
988 --eval-command=COMMAND, -ex\n\
989 Execute a single GDB command.\n\
990 May be used multiple times and in conjunction\n\
992 --core=COREFILE Analyze the core dump COREFILE.\n\
993 --pid=PID Attach to running process PID.\n\
995 fputs_unfiltered (_("\
996 --dbx DBX compatibility mode.\n\
997 --directory=DIR Search for source files in DIR.\n\
998 --epoch Output information used by epoch emacs-GDB interface.\n\
999 --exec=EXECFILE Use EXECFILE as the executable.\n\
1000 --fullname Output information used by emacs-GDB interface.\n\
1001 --help Print this message.\n\
1003 fputs_unfiltered (_("\
1004 --interpreter=INTERP\n\
1005 Select a specific interpreter / user interface\n\
1007 fputs_unfiltered (_("\
1008 -l TIMEOUT Set timeout in seconds for remote debugging.\n\
1009 --nw Do not use a window interface.\n\
1010 --nx Do not read "), stream
);
1011 fputs_unfiltered (gdbinit
, stream
);
1012 fputs_unfiltered (_(" file.\n\
1013 --quiet Do not print version number on startup.\n\
1014 --readnow Fully read symbol files on first access.\n\
1016 fputs_unfiltered (_("\
1017 --se=FILE Use FILE as symbol file and executable file.\n\
1018 --symbols=SYMFILE Read symbols from SYMFILE.\n\
1019 --tty=TTY Use TTY for input/output by the program being debugged.\n\
1022 fputs_unfiltered (_("\
1023 --tui Use a terminal user interface.\n\
1026 fputs_unfiltered (_("\
1027 --version Print version information and then exit.\n\
1028 -w Use a window interface.\n\
1029 --write Set writing into executable and core files.\n\
1030 --xdb XDB compatibility mode.\n\
1032 fputs_unfiltered (_("\n\
1033 At startup, GDB reads the following init files and executes their commands:\n\
1036 fprintf_unfiltered (stream
, _("\
1037 * system-wide init file: %s\n\
1038 "), system_gdbinit
);
1040 fprintf_unfiltered (stream
, _("\
1041 * user-specific init file: %s\n\
1044 fprintf_unfiltered (stream
, _("\
1045 * local init file: ./%s\n\
1047 fputs_unfiltered (_("\n\
1048 For more information, type \"help\" from within GDB, or consult the\n\
1049 GDB manual (available as on-line info or a printed manual).\n\
1051 if (REPORT_BUGS_TO
[0] && stream
== gdb_stdout
)
1052 fprintf_unfiltered (stream
, _("\
1053 Report bugs to \"%s\".\n\
1054 "), REPORT_BUGS_TO
);