1 /* Top level stuff for GDB, the GNU debugger.
3 Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
5 2009, 2010 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 3 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, see <http://www.gnu.org/licenses/>. */
29 #include "exceptions.h"
32 #include <sys/types.h>
36 #include "gdb_string.h"
37 #include "event-loop.h"
43 #include "cli/cli-cmds.h"
44 #include "python/python.h"
47 /* The selected interpreter. This will be used as a set command
48 variable, so it should always be malloc'ed - since
49 do_setshow_command will free it. */
52 /* Whether xdb commands will be handled */
55 /* Whether dbx commands will be handled */
58 /* System root path, used to find libraries etc. */
59 char *gdb_sysroot
= 0;
61 /* GDB datadir, used to store data files. */
62 char *gdb_datadir
= 0;
64 /* If gdb was configured with --with-python=/path,
65 the possibly relocated path to python's lib directory. */
66 char *python_libdir
= 0;
68 struct ui_file
*gdb_stdout
;
69 struct ui_file
*gdb_stderr
;
70 struct ui_file
*gdb_stdlog
;
71 struct ui_file
*gdb_stdin
;
72 /* target IO streams */
73 struct ui_file
*gdb_stdtargin
;
74 struct ui_file
*gdb_stdtarg
;
75 struct ui_file
*gdb_stdtargerr
;
77 /* True if --batch or --batch-silent was seen. */
80 /* Support for the --batch-silent option. */
83 /* Support for --return-child-result option.
84 Set the default to -1 to return error in the case
85 that the program does not run or does not complete. */
86 int return_child_result
= 0;
87 int return_child_result_value
= -1;
89 /* Whether to enable writing into executable and core files */
90 extern int write_files
;
92 /* GDB as it has been invoked from the command line (i.e. argv[0]). */
93 static char *gdb_program_name
;
95 static void print_gdb_help (struct ui_file
*);
97 /* These two are used to set the external editor commands when gdb is farming
98 out files to be edited by another program. */
100 extern char *external_editor_command
;
102 /* Relocate a file or directory. PROGNAME is the name by which gdb
103 was invoked (i.e., argv[0]). INITIAL is the default value for the
104 file or directory. FLAG is true if the value is relocatable, false
105 otherwise. Returns a newly allocated string; this may return NULL
106 under the same conditions as make_relative_prefix. */
108 relocate_path (const char *progname
, const char *initial
, int flag
)
111 return make_relative_prefix (progname
, BINDIR
, initial
);
112 return xstrdup (initial
);
115 /* Like relocate_path, but specifically checks for a directory.
116 INITIAL is relocated according to the rules of relocate_path. If
117 the result is a directory, it is used; otherwise, INITIAL is used.
118 The chosen directory is then canonicalized using lrealpath. This
119 function always returns a newly-allocated string. */
121 relocate_directory (const char *progname
, const char *initial
, int flag
)
125 dir
= relocate_path (progname
, 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 return
155 them in SYSTEM_GDBINIT, HOME_GDBINIT, LOCAL_GDBINIT. If there is
156 no system gdbinit (resp. home gdbinit and local gdbinit) to be loaded,
157 then SYSTEM_GDBINIT (resp. HOME_GDBINIT and LOCAL_GDBINIT) is set to
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 current_interp_command_loop ();
229 /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
230 would clean things up (restoring the cleanup chain) to the state
231 they were just prior to the call. Technically, this means that
232 the do_cleanups() below is redundant. Unfortunately, many FUNCs
233 are not that well behaved. do_cleanups should either be replaced
234 with a do_cleanups call (to cover the problem) or an assertion
235 check to detect bad FUNCs code. */
236 do_cleanups (ALL_CLEANUPS
);
237 /* If the command_loop returned, normally (rather than threw an
238 error) we try to quit. If the quit is aborted, catch_errors()
239 which called this catch the signal and restart the command
241 quit_command (NULL
, instream
== stdin
);
246 captured_main (void *data
)
248 struct captured_main_args
*context
= data
;
249 int argc
= context
->argc
;
250 char **argv
= context
->argv
;
251 static int quiet
= 0;
252 static int set_args
= 0;
254 /* Pointers to various arguments from command line. */
256 char *execarg
= NULL
;
258 char *corearg
= NULL
;
259 char *pid_or_core_arg
= NULL
;
263 /* These are static so that we can take their address in an initializer. */
264 static int print_help
;
265 static int print_version
;
267 /* Pointers to all arguments of --command option. */
275 /* Allocated size of cmdarg. */
277 /* Number of elements of cmdarg used. */
280 /* Indices of all arguments of --directory option. */
282 /* Allocated size. */
284 /* Number of elements used. */
287 /* gdb init files. */
288 char *system_gdbinit
;
294 struct objfile
*objfile
;
296 struct cleanup
*pre_stat_chain
= make_command_stats_cleanup (0);
298 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
299 setlocale (LC_MESSAGES
, "");
301 #if defined (HAVE_SETLOCALE)
302 setlocale (LC_CTYPE
, "");
304 bindtextdomain (PACKAGE
, LOCALEDIR
);
305 textdomain (PACKAGE
);
308 lim_at_start
= (char *) sbrk (0);
312 cmdarg
= (struct cmdarg
*) xmalloc (cmdsize
* sizeof (*cmdarg
));
315 dirarg
= (char **) xmalloc (dirsize
* sizeof (*dirarg
));
319 line
= (char *) xmalloc (linesize
);
320 line
[0] = '\0'; /* Terminate saved (now empty) cmd line */
323 gdb_stdout
= stdio_fileopen (stdout
);
324 gdb_stderr
= stdio_fileopen (stderr
);
325 gdb_stdlog
= gdb_stderr
; /* for moment */
326 gdb_stdtarg
= gdb_stderr
; /* for moment */
327 gdb_stdin
= stdio_fileopen (stdin
);
328 gdb_stdtargerr
= gdb_stderr
; /* for moment */
329 gdb_stdtargin
= gdb_stdin
; /* for moment */
331 gdb_program_name
= xstrdup (argv
[0]);
333 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
334 /* Don't use *_filtered or warning() (which relies on
335 current_target) until after initialize_all_files(). */
336 fprintf_unfiltered (gdb_stderr
,
337 _("%s: warning: error finding working directory: %s\n"),
338 argv
[0], safe_strerror (errno
));
340 current_directory
= gdb_dirbuf
;
342 /* Set the sysroot path. */
343 gdb_sysroot
= relocate_directory (argv
[0], TARGET_SYSTEM_ROOT
,
344 TARGET_SYSTEM_ROOT_RELOCATABLE
);
346 debug_file_directory
= relocate_directory (argv
[0], DEBUGDIR
,
347 DEBUGDIR_RELOCATABLE
);
349 gdb_datadir
= relocate_directory (argv
[0], GDB_DATADIR
,
350 GDB_DATADIR_RELOCATABLE
);
352 #ifdef WITH_PYTHON_PATH
353 /* For later use in helping Python find itself. */
354 python_libdir
= relocate_directory (argv
[0],
355 concat (WITH_PYTHON_PATH
,
356 SLASH_STRING
, "lib", NULL
),
357 PYTHON_PATH_RELOCATABLE
);
361 add_substitute_path_rule (RELOC_SRCDIR
,
362 make_relative_prefix (argv
[0], BINDIR
,
366 /* There will always be an interpreter. Either the one passed into
367 this captured main, or one specified by the user at start up, or
368 the console. Initialize the interpreter to the one requested by
370 interpreter_p
= xstrdup (context
->interpreter_p
);
372 /* Parse arguments and options. */
375 /* When var field is 0, use flag field to record the equivalent
376 short option (or arbitrary numbers starting at 10 for those
377 with no equivalent). */
387 static struct option long_options
[] =
389 {"tui", no_argument
, 0, OPT_TUI
},
390 {"xdb", no_argument
, &xdb_commands
, 1},
391 {"dbx", no_argument
, &dbx_commands
, 1},
392 {"readnow", no_argument
, &readnow_symbol_files
, 1},
393 {"r", no_argument
, &readnow_symbol_files
, 1},
394 {"quiet", no_argument
, &quiet
, 1},
395 {"q", no_argument
, &quiet
, 1},
396 {"silent", no_argument
, &quiet
, 1},
397 {"nx", no_argument
, &inhibit_gdbinit
, 1},
398 {"n", no_argument
, &inhibit_gdbinit
, 1},
399 {"batch-silent", no_argument
, 0, 'B'},
400 {"batch", no_argument
, &batch_flag
, 1},
401 {"epoch", no_argument
, &epoch_interface
, 1},
403 /* This is a synonym for "--annotate=1". --annotate is now preferred,
404 but keep this here for a long time because people will be running
405 emacses which use --fullname. */
406 {"fullname", no_argument
, 0, 'f'},
407 {"f", no_argument
, 0, 'f'},
409 {"annotate", required_argument
, 0, OPT_ANNOTATE
},
410 {"help", no_argument
, &print_help
, 1},
411 {"se", required_argument
, 0, OPT_SE
},
412 {"symbols", required_argument
, 0, 's'},
413 {"s", required_argument
, 0, 's'},
414 {"exec", required_argument
, 0, 'e'},
415 {"e", required_argument
, 0, 'e'},
416 {"core", required_argument
, 0, 'c'},
417 {"c", required_argument
, 0, 'c'},
418 {"pid", required_argument
, 0, 'p'},
419 {"p", required_argument
, 0, 'p'},
420 {"command", required_argument
, 0, 'x'},
421 {"eval-command", required_argument
, 0, 'X'},
422 {"version", no_argument
, &print_version
, 1},
423 {"x", required_argument
, 0, 'x'},
424 {"ex", required_argument
, 0, 'X'},
426 {"tclcommand", required_argument
, 0, 'z'},
427 {"enable-external-editor", no_argument
, 0, 'y'},
428 {"editor-command", required_argument
, 0, 'w'},
430 {"ui", required_argument
, 0, 'i'},
431 {"interpreter", required_argument
, 0, 'i'},
432 {"i", required_argument
, 0, 'i'},
433 {"directory", required_argument
, 0, 'd'},
434 {"d", required_argument
, 0, 'd'},
435 {"data-directory", required_argument
, 0, 'D'},
436 {"cd", required_argument
, 0, OPT_CD
},
437 {"tty", required_argument
, 0, 't'},
438 {"baud", required_argument
, 0, 'b'},
439 {"b", required_argument
, 0, 'b'},
440 {"nw", no_argument
, NULL
, OPT_NOWINDOWS
},
441 {"nowindows", no_argument
, NULL
, OPT_NOWINDOWS
},
442 {"w", no_argument
, NULL
, OPT_WINDOWS
},
443 {"windows", no_argument
, NULL
, OPT_WINDOWS
},
444 {"statistics", no_argument
, 0, OPT_STATISTICS
},
445 {"write", no_argument
, &write_files
, 1},
446 {"args", no_argument
, &set_args
, 1},
447 {"l", required_argument
, 0, 'l'},
448 {"return-child-result", no_argument
, &return_child_result
, 1},
449 {0, no_argument
, 0, 0}
456 c
= getopt_long_only (argc
, argv
, "",
457 long_options
, &option_index
);
458 if (c
== EOF
|| set_args
)
461 /* Long option that takes an argument. */
462 if (c
== 0 && long_options
[option_index
].flag
== 0)
463 c
= long_options
[option_index
].val
;
468 /* Long option that just sets a flag. */
478 /* FIXME: what if the syntax is wrong (e.g. not digits)? */
479 annotation_level
= atoi (optarg
);
482 /* Enable the display of both time and space usage. */
483 set_display_time (1);
484 set_display_space (1);
487 /* --tui is equivalent to -i=tui. */
489 xfree (interpreter_p
);
490 interpreter_p
= xstrdup (INTERP_TUI
);
492 fprintf_unfiltered (gdb_stderr
,
493 _("%s: TUI mode is not supported\n"),
499 /* FIXME: cagney/2003-03-01: Not sure if this option is
500 actually useful, and if it is, what it should do. */
502 /* --windows is equivalent to -i=insight. */
503 xfree (interpreter_p
);
504 interpreter_p
= xstrdup (INTERP_INSIGHT
);
509 /* -nw is equivalent to -i=console. */
510 xfree (interpreter_p
);
511 interpreter_p
= xstrdup (INTERP_CONSOLE
);
515 annotation_level
= 1;
516 /* We have probably been invoked from emacs. Disable window interface. */
532 cmdarg
[ncmd
].type
= CMDARG_FILE
;
533 cmdarg
[ncmd
++].string
= optarg
;
537 cmdarg
= xrealloc ((char *) cmdarg
,
538 cmdsize
* sizeof (*cmdarg
));
542 cmdarg
[ncmd
].type
= CMDARG_COMMAND
;
543 cmdarg
[ncmd
++].string
= optarg
;
547 cmdarg
= xrealloc ((char *) cmdarg
,
548 cmdsize
* sizeof (*cmdarg
));
552 batch_flag
= batch_silent
= 1;
553 gdb_stdout
= ui_file_new();
557 gdb_datadir
= xstrdup (optarg
);
562 extern int gdbtk_test (char *);
563 if (!gdbtk_test (optarg
))
565 fprintf_unfiltered (gdb_stderr
, _("%s: unable to load tclcommand file \"%s\""),
572 /* Backwards compatibility only. */
576 external_editor_command
= xstrdup (optarg
);
581 xfree (interpreter_p
);
582 interpreter_p
= xstrdup (optarg
);
585 dirarg
[ndir
++] = optarg
;
589 dirarg
= (char **) xrealloc ((char *) dirarg
,
590 dirsize
* sizeof (*dirarg
));
604 i
= strtol (optarg
, &p
, 0);
605 if (i
== 0 && p
== optarg
)
607 /* Don't use *_filtered or warning() (which relies on
608 current_target) until after initialize_all_files(). */
612 _("warning: could not set baud rate to `%s'.\n"), optarg
);
622 i
= strtol (optarg
, &p
, 0);
623 if (i
== 0 && p
== optarg
)
625 /* Don't use *_filtered or warning() (which relies on
626 current_target) until after initialize_all_files(). */
630 _("warning: could not set timeout limit to `%s'.\n"), optarg
);
637 fprintf_unfiltered (gdb_stderr
,
638 _("Use `%s --help' for a complete list of options.\n"),
644 /* If --help or --version, disable window interface. */
645 if (print_help
|| print_version
)
654 /* Initialize all files. Give the interpreter a chance to take
655 control of the console via the deprecated_init_ui_hook (). */
658 /* Now that gdb_init has created the initial inferior, we're in position
659 to set args for that inferior. */
662 /* The remaining options are the command-line options for the
663 inferior. The first one is the sym/exec file, and the rest
667 fprintf_unfiltered (gdb_stderr
,
668 _("%s: `--args' specified but no program specified\n"),
672 symarg
= argv
[optind
];
673 execarg
= argv
[optind
];
675 set_inferior_args_vector (argc
- optind
, &argv
[optind
]);
679 /* OK, that's all the options. */
681 /* The first argument, if specified, is the name of the
685 symarg
= argv
[optind
];
686 execarg
= argv
[optind
];
690 /* If the user hasn't already specified a PID or the name of a
691 core file, then a second optional argument is allowed. If
692 present, this argument should be interpreted as either a
693 PID or a core file, whichever works. */
694 if (pidarg
== NULL
&& corearg
== NULL
&& optind
< argc
)
696 pid_or_core_arg
= argv
[optind
];
700 /* Any argument left on the command line is unexpected and
701 will be ignored. Inform the user. */
703 fprintf_unfiltered (gdb_stderr
, _("\
704 Excess command line arguments ignored. (%s%s)\n"),
706 (optind
== argc
- 1) ? "" : " ...");
709 /* Lookup gdbinit files. Note that the gdbinit file name may be overriden
710 during file initialization, so get_init_files should be called after
712 get_init_files (&system_gdbinit
, &home_gdbinit
, &local_gdbinit
);
714 /* Do these (and anything which might call wrap_here or *_filtered)
715 after initialize_all_files() but before the interpreter has been
716 installed. Otherwize the help/version messages will be eaten by
717 the interpreter's output handler. */
721 print_gdb_version (gdb_stdout
);
723 printf_filtered ("\n");
729 print_gdb_help (gdb_stdout
);
730 fputs_unfiltered ("\n", gdb_stdout
);
734 /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets
735 GDB retain the old MI1 interpreter startup behavior. Output the
736 copyright message before the interpreter is installed. That way
737 it isn't encapsulated in MI output. */
738 if (!quiet
&& strcmp (interpreter_p
, INTERP_MI1
) == 0)
740 /* Print all the junk at the top, with trailing "..." if we are about
741 to read a symbol file (possibly slowly). */
742 print_gdb_version (gdb_stdout
);
744 printf_filtered ("..");
746 printf_filtered ("\n");
747 gdb_flush (gdb_stdout
); /* Force to screen during slow operations */
751 /* Install the default UI. All the interpreters should have had a
752 look at things by now. Initialize the default interpreter. */
756 struct interp
*interp
= interp_lookup (interpreter_p
);
759 error (_("Interpreter `%s' unrecognized"), interpreter_p
);
761 if (!interp_set (interp
, 1))
763 fprintf_unfiltered (gdb_stderr
,
764 "Interpreter `%s' failed to initialize.\n",
770 /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets
771 GDB retain the old MI1 interpreter startup behavior. Output the
772 copyright message after the interpreter is installed when it is
773 any sane interpreter. */
774 if (!quiet
&& !current_interp_named_p (INTERP_MI1
))
776 /* Print all the junk at the top, with trailing "..." if we are about
777 to read a symbol file (possibly slowly). */
778 print_gdb_version (gdb_stdout
);
780 printf_filtered ("..");
782 printf_filtered ("\n");
783 gdb_flush (gdb_stdout
); /* Force to screen during slow operations */
786 /* Set off error and warning messages with a blank line. */
787 error_pre_print
= "\n";
788 quit_pre_print
= error_pre_print
;
789 warning_pre_print
= _("\nwarning: ");
791 /* Read and execute the system-wide gdbinit file, if it exists.
792 This is done *before* all the command line arguments are
793 processed; it sets global parameters, which are independent of
794 what file you are debugging or what directory you are in. */
795 if (system_gdbinit
&& !inhibit_gdbinit
)
796 catch_command_errors (source_script
, system_gdbinit
, 0, RETURN_MASK_ALL
);
798 /* Read and execute $HOME/.gdbinit file, if it exists. This is done
799 *before* all the command line arguments are processed; it sets
800 global parameters, which are independent of what file you are
801 debugging or what directory you are in. */
803 if (home_gdbinit
&& !inhibit_gdbinit
)
804 catch_command_errors (source_script
, home_gdbinit
, 0, RETURN_MASK_ALL
);
806 /* Now perform all the actions indicated by the arguments. */
809 catch_command_errors (cd_command
, cdarg
, 0, RETURN_MASK_ALL
);
812 for (i
= 0; i
< ndir
; i
++)
813 catch_command_errors (directory_switch
, dirarg
[i
], 0, RETURN_MASK_ALL
);
816 /* Skip auto-loading section-specified scripts until we've sourced
817 local_gdbinit (which is often used to augment the source search path). */
818 save_auto_load
= gdbpy_global_auto_load
;
819 gdbpy_global_auto_load
= 0;
823 && strcmp (execarg
, symarg
) == 0)
825 /* The exec file and the symbol-file are the same. If we can't
826 open it, better only print one error message.
827 catch_command_errors returns non-zero on success! */
828 if (catch_command_errors (exec_file_attach
, execarg
, !batch_flag
, RETURN_MASK_ALL
))
829 catch_command_errors (symbol_file_add_main
, symarg
, !batch_flag
, RETURN_MASK_ALL
);
834 catch_command_errors (exec_file_attach
, execarg
, !batch_flag
, RETURN_MASK_ALL
);
836 catch_command_errors (symbol_file_add_main
, symarg
, !batch_flag
, RETURN_MASK_ALL
);
839 if (corearg
&& pidarg
)
841 Can't attach to process and specify a core file at the same time."));
844 catch_command_errors (core_file_command
, corearg
,
845 !batch_flag
, RETURN_MASK_ALL
);
846 else if (pidarg
!= NULL
)
847 catch_command_errors (attach_command
, pidarg
,
848 !batch_flag
, RETURN_MASK_ALL
);
849 else if (pid_or_core_arg
)
851 /* The user specified 'gdb program pid' or gdb program core'.
852 If pid_or_core_arg's first character is a digit, try attach
853 first and then corefile. Otherwise try just corefile. */
855 if (isdigit (pid_or_core_arg
[0]))
857 if (catch_command_errors (attach_command
, pid_or_core_arg
,
858 !batch_flag
, RETURN_MASK_ALL
) == 0)
859 catch_command_errors (core_file_command
, pid_or_core_arg
,
860 !batch_flag
, RETURN_MASK_ALL
);
862 else /* Can't be a pid, better be a corefile. */
863 catch_command_errors (core_file_command
, pid_or_core_arg
,
864 !batch_flag
, RETURN_MASK_ALL
);
868 set_inferior_io_terminal (ttyarg
);
870 /* Error messages should no longer be distinguished with extra output. */
871 error_pre_print
= NULL
;
872 quit_pre_print
= NULL
;
873 warning_pre_print
= _("warning: ");
875 /* Read the .gdbinit file in the current directory, *if* it isn't
876 the same as the $HOME/.gdbinit file (it should exist, also). */
877 if (local_gdbinit
&& !inhibit_gdbinit
)
878 catch_command_errors (source_script
, local_gdbinit
, 0, RETURN_MASK_ALL
);
880 /* Now that all .gdbinit's have been read and all -d options have been
881 processed, we can read any scripts mentioned in SYMARG.
882 We wait until now because it is common to add to the source search
883 path in local_gdbinit. */
884 gdbpy_global_auto_load
= save_auto_load
;
885 ALL_OBJFILES (objfile
)
886 load_auto_scripts_for_objfile (objfile
);
888 for (i
= 0; i
< ncmd
; i
++)
890 if (cmdarg
[i
].type
== CMDARG_FILE
)
891 catch_command_errors (source_script
, cmdarg
[i
].string
,
892 !batch_flag
, RETURN_MASK_ALL
);
893 else /* cmdarg[i].type == CMDARG_COMMAND */
894 catch_command_errors (execute_command
, cmdarg
[i
].string
,
895 !batch_flag
, RETURN_MASK_ALL
);
899 /* Read in the old history after all the command files have been read. */
904 /* We have hit the end of the batch file. */
905 quit_force (NULL
, 0);
908 /* Show time and/or space usage. */
909 do_cleanups (pre_stat_chain
);
911 /* NOTE: cagney/1999-11-07: There is probably no reason for not
912 moving this loop and the code found in captured_command_loop()
913 into the command_loop() proper. The main thing holding back that
914 change - SET_TOP_LEVEL() - has been eliminated. */
917 catch_errors (captured_command_loop
, 0, "", RETURN_MASK_ALL
);
919 /* No exit -- exit is through quit_command. */
923 gdb_main (struct captured_main_args
*args
)
925 use_windows
= args
->use_windows
;
926 catch_errors (captured_main
, args
, "", RETURN_MASK_ALL
);
927 /* The only way to end up here is by an error (normal exit is
928 handled by quit_force()), hence always return an error status. */
933 /* Don't use *_filtered for printing help. We don't want to prompt
934 for continue no matter how small the screen or how much we're going
938 print_gdb_help (struct ui_file
*stream
)
940 char *system_gdbinit
;
944 get_init_files (&system_gdbinit
, &home_gdbinit
, &local_gdbinit
);
946 fputs_unfiltered (_("\
947 This is the GNU debugger. Usage:\n\n\
948 gdb [options] [executable-file [core-file or process-id]]\n\
949 gdb [options] --args executable-file [inferior-arguments ...]\n\n\
952 fputs_unfiltered (_("\
953 --args Arguments after executable-file are passed to inferior\n\
955 fputs_unfiltered (_("\
956 -b BAUDRATE Set serial port baud rate used for remote debugging.\n\
957 --batch Exit after processing options.\n\
958 --batch-silent As for --batch, but suppress all gdb stdout output.\n\
959 --return-child-result\n\
960 GDB exit code will be the child's exit code.\n\
961 --cd=DIR Change current directory to DIR.\n\
962 --command=FILE, -x Execute GDB commands from FILE.\n\
963 --eval-command=COMMAND, -ex\n\
964 Execute a single GDB command.\n\
965 May be used multiple times and in conjunction\n\
967 --core=COREFILE Analyze the core dump COREFILE.\n\
968 --pid=PID Attach to running process PID.\n\
970 fputs_unfiltered (_("\
971 --dbx DBX compatibility mode.\n\
972 --directory=DIR Search for source files in DIR.\n\
973 --epoch Output information used by epoch emacs-GDB interface.\n\
974 --exec=EXECFILE Use EXECFILE as the executable.\n\
975 --fullname Output information used by emacs-GDB interface.\n\
976 --help Print this message.\n\
978 fputs_unfiltered (_("\
979 --interpreter=INTERP\n\
980 Select a specific interpreter / user interface\n\
982 fputs_unfiltered (_("\
983 -l TIMEOUT Set timeout in seconds for remote debugging.\n\
984 --nw Do not use a window interface.\n\
985 --nx Do not read "), stream
);
986 fputs_unfiltered (gdbinit
, stream
);
987 fputs_unfiltered (_(" file.\n\
988 --quiet Do not print version number on startup.\n\
989 --readnow Fully read symbol files on first access.\n\
991 fputs_unfiltered (_("\
992 --se=FILE Use FILE as symbol file and executable file.\n\
993 --symbols=SYMFILE Read symbols from SYMFILE.\n\
994 --tty=TTY Use TTY for input/output by the program being debugged.\n\
997 fputs_unfiltered (_("\
998 --tui Use a terminal user interface.\n\
1001 fputs_unfiltered (_("\
1002 --version Print version information and then exit.\n\
1003 -w Use a window interface.\n\
1004 --write Set writing into executable and core files.\n\
1005 --xdb XDB compatibility mode.\n\
1007 fputs_unfiltered (_("\n\
1008 At startup, GDB reads the following init files and executes their commands:\n\
1011 fprintf_unfiltered (stream
, _("\
1012 * system-wide init file: %s\n\
1013 "), system_gdbinit
);
1015 fprintf_unfiltered (stream
, _("\
1016 * user-specific init file: %s\n\
1019 fprintf_unfiltered (stream
, _("\
1020 * local init file: ./%s\n\
1022 fputs_unfiltered (_("\n\
1023 For more information, type \"help\" from within GDB, or consult the\n\
1024 GDB manual (available as on-line info or a printed manual).\n\
1026 if (REPORT_BUGS_TO
[0] && stream
== gdb_stdout
)
1027 fprintf_unfiltered (stream
, _("\
1028 Report bugs to \"%s\".\n\
1029 "), REPORT_BUGS_TO
);