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, 2011 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
98 farming 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. */
109 relocate_path (const char *progname
, const char *initial
, int flag
)
112 return make_relative_prefix (progname
, BINDIR
, initial
);
113 return xstrdup (initial
);
116 /* Like relocate_path, but specifically checks for a directory.
117 INITIAL is relocated according to the rules of relocate_path. If
118 the result is a directory, it is used; otherwise, INITIAL is used.
119 The chosen directory is then canonicalized using lrealpath. This
120 function always returns a newly-allocated string. */
123 relocate_gdb_directory (const char *initial
, int flag
)
127 dir
= relocate_path (gdb_program_name
, initial
, flag
);
132 if (stat (dir
, &s
) != 0 || !S_ISDIR (s
.st_mode
))
139 dir
= xstrdup (initial
);
141 /* Canonicalize the directory. */
144 char *canon_sysroot
= lrealpath (dir
);
156 /* Compute the locations of init files that GDB should source and
157 return them in SYSTEM_GDBINIT, HOME_GDBINIT, LOCAL_GDBINIT. If
158 there is no system gdbinit (resp. home gdbinit and local gdbinit)
159 to be loaded, then SYSTEM_GDBINIT (resp. HOME_GDBINIT and
160 LOCAL_GDBINIT) is set to NULL. */
162 get_init_files (char **system_gdbinit
,
164 char **local_gdbinit
)
166 static char *sysgdbinit
= NULL
;
167 static char *homeinit
= NULL
;
168 static char *localinit
= NULL
;
169 static int initialized
= 0;
173 struct stat homebuf
, cwdbuf
, s
;
174 char *homedir
, *relocated_sysgdbinit
;
176 if (SYSTEM_GDBINIT
[0])
178 relocated_sysgdbinit
= relocate_path (gdb_program_name
,
180 SYSTEM_GDBINIT_RELOCATABLE
);
181 if (relocated_sysgdbinit
&& stat (relocated_sysgdbinit
, &s
) == 0)
182 sysgdbinit
= relocated_sysgdbinit
;
184 xfree (relocated_sysgdbinit
);
187 homedir
= getenv ("HOME");
189 /* If the .gdbinit file in the current directory is the same as
190 the $HOME/.gdbinit file, it should not be sourced. homebuf
191 and cwdbuf are used in that purpose. Make sure that the stats
192 are zero in case one of them fails (this guarantees that they
193 won't match if either exists). */
195 memset (&homebuf
, 0, sizeof (struct stat
));
196 memset (&cwdbuf
, 0, sizeof (struct stat
));
200 homeinit
= xstrprintf ("%s/%s", homedir
, gdbinit
);
201 if (stat (homeinit
, &homebuf
) != 0)
208 if (stat (gdbinit
, &cwdbuf
) == 0)
211 || memcmp ((char *) &homebuf
, (char *) &cwdbuf
,
212 sizeof (struct stat
)))
219 *system_gdbinit
= sysgdbinit
;
220 *home_gdbinit
= homeinit
;
221 *local_gdbinit
= localinit
;
224 /* Call command_loop. If it happens to return, pass that through as a
225 non-zero return status. */
228 captured_command_loop (void *data
)
230 /* Top-level execution commands can be run on the background from
232 interpreter_async
= 1;
234 current_interp_command_loop ();
235 /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
236 would clean things up (restoring the cleanup chain) to the state
237 they were just prior to the call. Technically, this means that
238 the do_cleanups() below is redundant. Unfortunately, many FUNCs
239 are not that well behaved. do_cleanups should either be replaced
240 with a do_cleanups call (to cover the problem) or an assertion
241 check to detect bad FUNCs code. */
242 do_cleanups (ALL_CLEANUPS
);
243 /* If the command_loop returned, normally (rather than threw an
244 error) we try to quit. If the quit is aborted, catch_errors()
245 which called this catch the signal and restart the command
247 quit_command (NULL
, instream
== stdin
);
252 captured_main (void *data
)
254 struct captured_main_args
*context
= data
;
255 int argc
= context
->argc
;
256 char **argv
= context
->argv
;
257 static int quiet
= 0;
258 static int set_args
= 0;
260 /* Pointers to various arguments from command line. */
262 char *execarg
= NULL
;
264 char *corearg
= NULL
;
265 char *pid_or_core_arg
= NULL
;
269 /* These are static so that we can take their address in an
271 static int print_help
;
272 static int print_version
;
274 /* Pointers to all arguments of --command option. */
282 /* Allocated size of cmdarg. */
284 /* Number of elements of cmdarg used. */
287 /* Indices of all arguments of --directory option. */
289 /* Allocated size. */
291 /* Number of elements used. */
294 /* gdb init files. */
295 char *system_gdbinit
;
301 struct objfile
*objfile
;
303 struct cleanup
*pre_stat_chain
= make_command_stats_cleanup (0);
305 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
306 setlocale (LC_MESSAGES
, "");
308 #if defined (HAVE_SETLOCALE)
309 setlocale (LC_CTYPE
, "");
311 bindtextdomain (PACKAGE
, LOCALEDIR
);
312 textdomain (PACKAGE
);
315 lim_at_start
= (char *) sbrk (0);
319 cmdarg
= (struct cmdarg
*) xmalloc (cmdsize
* sizeof (*cmdarg
));
322 dirarg
= (char **) xmalloc (dirsize
* sizeof (*dirarg
));
326 saved_command_line
= (char *) xmalloc (saved_command_line_size
);
327 saved_command_line
[0] = '\0';
330 gdb_stdout
= stdio_fileopen (stdout
);
331 gdb_stderr
= stdio_fileopen (stderr
);
332 gdb_stdlog
= gdb_stderr
; /* for moment */
333 gdb_stdtarg
= gdb_stderr
; /* for moment */
334 gdb_stdin
= stdio_fileopen (stdin
);
335 gdb_stdtargerr
= gdb_stderr
; /* for moment */
336 gdb_stdtargin
= gdb_stdin
; /* for moment */
338 gdb_program_name
= xstrdup (argv
[0]);
340 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
341 /* Don't use *_filtered or warning() (which relies on
342 current_target) until after initialize_all_files(). */
343 fprintf_unfiltered (gdb_stderr
,
344 _("%s: warning: error finding "
345 "working directory: %s\n"),
346 argv
[0], safe_strerror (errno
));
348 current_directory
= gdb_dirbuf
;
350 /* Set the sysroot path. */
351 gdb_sysroot
= relocate_gdb_directory (TARGET_SYSTEM_ROOT
,
352 TARGET_SYSTEM_ROOT_RELOCATABLE
);
354 debug_file_directory
= relocate_gdb_directory (DEBUGDIR
,
355 DEBUGDIR_RELOCATABLE
);
357 gdb_datadir
= relocate_gdb_directory (GDB_DATADIR
,
358 GDB_DATADIR_RELOCATABLE
);
360 #ifdef WITH_PYTHON_PATH
362 /* For later use in helping Python find itself. */
363 char *tmp
= concat (WITH_PYTHON_PATH
, SLASH_STRING
, "lib", NULL
);
365 python_libdir
= relocate_gdb_directory (tmp
, PYTHON_PATH_RELOCATABLE
);
371 add_substitute_path_rule (RELOC_SRCDIR
,
372 make_relative_prefix (argv
[0], BINDIR
,
376 /* There will always be an interpreter. Either the one passed into
377 this captured main, or one specified by the user at start up, or
378 the console. Initialize the interpreter to the one requested by
380 interpreter_p
= xstrdup (context
->interpreter_p
);
382 /* Parse arguments and options. */
385 /* When var field is 0, use flag field to record the equivalent
386 short option (or arbitrary numbers starting at 10 for those
387 with no equivalent). */
397 static struct option long_options
[] =
399 {"tui", no_argument
, 0, OPT_TUI
},
400 {"xdb", no_argument
, &xdb_commands
, 1},
401 {"dbx", no_argument
, &dbx_commands
, 1},
402 {"readnow", no_argument
, &readnow_symbol_files
, 1},
403 {"r", no_argument
, &readnow_symbol_files
, 1},
404 {"quiet", no_argument
, &quiet
, 1},
405 {"q", no_argument
, &quiet
, 1},
406 {"silent", no_argument
, &quiet
, 1},
407 {"nx", no_argument
, &inhibit_gdbinit
, 1},
408 {"n", no_argument
, &inhibit_gdbinit
, 1},
409 {"batch-silent", no_argument
, 0, 'B'},
410 {"batch", no_argument
, &batch_flag
, 1},
411 {"epoch", no_argument
, &epoch_interface
, 1},
413 /* This is a synonym for "--annotate=1". --annotate is now
414 preferred, but keep this here for a long time because people
415 will be running emacses which use --fullname. */
416 {"fullname", no_argument
, 0, 'f'},
417 {"f", no_argument
, 0, 'f'},
419 {"annotate", required_argument
, 0, OPT_ANNOTATE
},
420 {"help", no_argument
, &print_help
, 1},
421 {"se", required_argument
, 0, OPT_SE
},
422 {"symbols", required_argument
, 0, 's'},
423 {"s", required_argument
, 0, 's'},
424 {"exec", required_argument
, 0, 'e'},
425 {"e", required_argument
, 0, 'e'},
426 {"core", required_argument
, 0, 'c'},
427 {"c", required_argument
, 0, 'c'},
428 {"pid", required_argument
, 0, 'p'},
429 {"p", required_argument
, 0, 'p'},
430 {"command", required_argument
, 0, 'x'},
431 {"eval-command", required_argument
, 0, 'X'},
432 {"version", no_argument
, &print_version
, 1},
433 {"x", required_argument
, 0, 'x'},
434 {"ex", required_argument
, 0, 'X'},
436 {"tclcommand", required_argument
, 0, 'z'},
437 {"enable-external-editor", no_argument
, 0, 'y'},
438 {"editor-command", required_argument
, 0, 'w'},
440 {"ui", required_argument
, 0, 'i'},
441 {"interpreter", required_argument
, 0, 'i'},
442 {"i", required_argument
, 0, 'i'},
443 {"directory", required_argument
, 0, 'd'},
444 {"d", required_argument
, 0, 'd'},
445 {"data-directory", required_argument
, 0, 'D'},
446 {"cd", required_argument
, 0, OPT_CD
},
447 {"tty", required_argument
, 0, 't'},
448 {"baud", required_argument
, 0, 'b'},
449 {"b", required_argument
, 0, 'b'},
450 {"nw", no_argument
, NULL
, OPT_NOWINDOWS
},
451 {"nowindows", no_argument
, NULL
, OPT_NOWINDOWS
},
452 {"w", no_argument
, NULL
, OPT_WINDOWS
},
453 {"windows", no_argument
, NULL
, OPT_WINDOWS
},
454 {"statistics", no_argument
, 0, OPT_STATISTICS
},
455 {"write", no_argument
, &write_files
, 1},
456 {"args", no_argument
, &set_args
, 1},
457 {"l", required_argument
, 0, 'l'},
458 {"return-child-result", no_argument
, &return_child_result
, 1},
459 {0, no_argument
, 0, 0}
466 c
= getopt_long_only (argc
, argv
, "",
467 long_options
, &option_index
);
468 if (c
== EOF
|| set_args
)
471 /* Long option that takes an argument. */
472 if (c
== 0 && long_options
[option_index
].flag
== 0)
473 c
= long_options
[option_index
].val
;
478 /* Long option that just sets a flag. */
488 /* FIXME: what if the syntax is wrong (e.g. not digits)? */
489 annotation_level
= atoi (optarg
);
492 /* Enable the display of both time and space usage. */
493 set_display_time (1);
494 set_display_space (1);
497 /* --tui is equivalent to -i=tui. */
499 xfree (interpreter_p
);
500 interpreter_p
= xstrdup (INTERP_TUI
);
502 fprintf_unfiltered (gdb_stderr
,
503 _("%s: TUI mode is not supported\n"),
509 /* FIXME: cagney/2003-03-01: Not sure if this option is
510 actually useful, and if it is, what it should do. */
512 /* --windows is equivalent to -i=insight. */
513 xfree (interpreter_p
);
514 interpreter_p
= xstrdup (INTERP_INSIGHT
);
519 /* -nw is equivalent to -i=console. */
520 xfree (interpreter_p
);
521 interpreter_p
= xstrdup (INTERP_CONSOLE
);
525 annotation_level
= 1;
526 /* We have probably been invoked from emacs. Disable
543 cmdarg
[ncmd
].type
= CMDARG_FILE
;
544 cmdarg
[ncmd
++].string
= optarg
;
548 cmdarg
= xrealloc ((char *) cmdarg
,
549 cmdsize
* sizeof (*cmdarg
));
553 cmdarg
[ncmd
].type
= CMDARG_COMMAND
;
554 cmdarg
[ncmd
++].string
= optarg
;
558 cmdarg
= xrealloc ((char *) cmdarg
,
559 cmdsize
* sizeof (*cmdarg
));
563 batch_flag
= batch_silent
= 1;
564 gdb_stdout
= ui_file_new();
568 gdb_datadir
= xstrdup (optarg
);
573 extern int gdbtk_test (char *);
575 if (!gdbtk_test (optarg
))
577 fprintf_unfiltered (gdb_stderr
,
578 _("%s: unable to load "
579 "tclcommand file \"%s\""),
586 /* Backwards compatibility only. */
590 external_editor_command
= xstrdup (optarg
);
595 xfree (interpreter_p
);
596 interpreter_p
= xstrdup (optarg
);
599 dirarg
[ndir
++] = optarg
;
603 dirarg
= (char **) xrealloc ((char *) dirarg
,
604 dirsize
* sizeof (*dirarg
));
618 i
= strtol (optarg
, &p
, 0);
619 if (i
== 0 && p
== optarg
)
621 /* Don't use *_filtered or warning() (which relies on
622 current_target) until after initialize_all_files(). */
626 _("warning: could not set baud rate to `%s'.\n"), optarg
);
636 i
= strtol (optarg
, &p
, 0);
637 if (i
== 0 && p
== optarg
)
639 /* Don't use *_filtered or warning() (which relies on
640 current_target) until after initialize_all_files(). */
642 fprintf_unfiltered (gdb_stderr
,
643 _("warning: could not set "
644 "timeout limit to `%s'.\n"), optarg
);
651 fprintf_unfiltered (gdb_stderr
,
652 _("Use `%s --help' for a "
653 "complete list of options.\n"),
659 /* If --help or --version, disable window interface. */
660 if (print_help
|| print_version
)
669 /* Initialize all files. Give the interpreter a chance to take
670 control of the console via the deprecated_init_ui_hook (). */
673 /* Now that gdb_init has created the initial inferior, we're in
674 position to set args for that inferior. */
677 /* The remaining options are the command-line options for the
678 inferior. The first one is the sym/exec file, and the rest
682 fprintf_unfiltered (gdb_stderr
,
683 _("%s: `--args' specified but "
684 "no program specified\n"),
688 symarg
= argv
[optind
];
689 execarg
= argv
[optind
];
691 set_inferior_args_vector (argc
- optind
, &argv
[optind
]);
695 /* OK, that's all the options. */
697 /* The first argument, if specified, is the name of the
701 symarg
= argv
[optind
];
702 execarg
= argv
[optind
];
706 /* If the user hasn't already specified a PID or the name of a
707 core file, then a second optional argument is allowed. If
708 present, this argument should be interpreted as either a
709 PID or a core file, whichever works. */
710 if (pidarg
== NULL
&& corearg
== NULL
&& optind
< argc
)
712 pid_or_core_arg
= argv
[optind
];
716 /* Any argument left on the command line is unexpected and
717 will be ignored. Inform the user. */
719 fprintf_unfiltered (gdb_stderr
,
720 _("Excess command line "
721 "arguments ignored. (%s%s)\n"),
723 (optind
== argc
- 1) ? "" : " ...");
726 /* Lookup gdbinit files. Note that the gdbinit file name may be
727 overriden during file initialization, so get_init_files should be
728 called after gdb_init. */
729 get_init_files (&system_gdbinit
, &home_gdbinit
, &local_gdbinit
);
731 /* Do these (and anything which might call wrap_here or *_filtered)
732 after initialize_all_files() but before the interpreter has been
733 installed. Otherwize the help/version messages will be eaten by
734 the interpreter's output handler. */
738 print_gdb_version (gdb_stdout
);
740 printf_filtered ("\n");
746 print_gdb_help (gdb_stdout
);
747 fputs_unfiltered ("\n", gdb_stdout
);
751 /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets
752 GDB retain the old MI1 interpreter startup behavior. Output the
753 copyright message before the interpreter is installed. That way
754 it isn't encapsulated in MI output. */
755 if (!quiet
&& strcmp (interpreter_p
, INTERP_MI1
) == 0)
757 /* Print all the junk at the top, with trailing "..." if we are
758 about to read a symbol file (possibly slowly). */
759 print_gdb_version (gdb_stdout
);
761 printf_filtered ("..");
763 printf_filtered ("\n");
764 gdb_flush (gdb_stdout
); /* Force to screen during slow
768 /* Install the default UI. All the interpreters should have had a
769 look at things by now. Initialize the default interpreter. */
773 struct interp
*interp
= interp_lookup (interpreter_p
);
776 error (_("Interpreter `%s' unrecognized"), interpreter_p
);
778 if (!interp_set (interp
, 1))
780 fprintf_unfiltered (gdb_stderr
,
781 "Interpreter `%s' failed to initialize.\n",
787 /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets
788 GDB retain the old MI1 interpreter startup behavior. Output the
789 copyright message after the interpreter is installed when it is
790 any sane interpreter. */
791 if (!quiet
&& !current_interp_named_p (INTERP_MI1
))
793 /* Print all the junk at the top, with trailing "..." if we are
794 about to read a symbol file (possibly slowly). */
795 print_gdb_version (gdb_stdout
);
797 printf_filtered ("..");
799 printf_filtered ("\n");
800 gdb_flush (gdb_stdout
); /* Force to screen during slow
804 /* Set off error and warning messages with a blank line. */
805 error_pre_print
= "\n";
806 quit_pre_print
= error_pre_print
;
807 warning_pre_print
= _("\nwarning: ");
809 /* Read and execute the system-wide gdbinit file, if it exists.
810 This is done *before* all the command line arguments are
811 processed; it sets global parameters, which are independent of
812 what file you are debugging or what directory you are in. */
813 if (system_gdbinit
&& !inhibit_gdbinit
)
814 catch_command_errors (source_script
, system_gdbinit
, 0, RETURN_MASK_ALL
);
816 /* Read and execute $HOME/.gdbinit file, if it exists. This is done
817 *before* all the command line arguments are processed; it sets
818 global parameters, which are independent of what file you are
819 debugging or what directory you are in. */
821 if (home_gdbinit
&& !inhibit_gdbinit
)
822 catch_command_errors (source_script
, home_gdbinit
, 0, RETURN_MASK_ALL
);
824 /* Now perform all the actions indicated by the arguments. */
827 catch_command_errors (cd_command
, cdarg
, 0, RETURN_MASK_ALL
);
830 for (i
= 0; i
< ndir
; i
++)
831 catch_command_errors (directory_switch
, dirarg
[i
], 0, RETURN_MASK_ALL
);
834 /* Skip auto-loading section-specified scripts until we've sourced
835 local_gdbinit (which is often used to augment the source search
837 save_auto_load
= gdbpy_global_auto_load
;
838 gdbpy_global_auto_load
= 0;
842 && strcmp (execarg
, symarg
) == 0)
844 /* The exec file and the symbol-file are the same. If we can't
845 open it, better only print one error message.
846 catch_command_errors returns non-zero on success! */
847 if (catch_command_errors (exec_file_attach
, execarg
,
848 !batch_flag
, RETURN_MASK_ALL
))
849 catch_command_errors (symbol_file_add_main
, symarg
,
850 !batch_flag
, RETURN_MASK_ALL
);
855 catch_command_errors (exec_file_attach
, execarg
,
856 !batch_flag
, RETURN_MASK_ALL
);
858 catch_command_errors (symbol_file_add_main
, symarg
,
859 !batch_flag
, RETURN_MASK_ALL
);
862 if (corearg
&& pidarg
)
863 error (_("Can't attach to process and specify "
864 "a core file at the same time."));
867 catch_command_errors (core_file_command
, corearg
,
868 !batch_flag
, RETURN_MASK_ALL
);
869 else if (pidarg
!= NULL
)
870 catch_command_errors (attach_command
, pidarg
,
871 !batch_flag
, RETURN_MASK_ALL
);
872 else if (pid_or_core_arg
)
874 /* The user specified 'gdb program pid' or gdb program core'.
875 If pid_or_core_arg's first character is a digit, try attach
876 first and then corefile. Otherwise try just corefile. */
878 if (isdigit (pid_or_core_arg
[0]))
880 if (catch_command_errors (attach_command
, pid_or_core_arg
,
881 !batch_flag
, RETURN_MASK_ALL
) == 0)
882 catch_command_errors (core_file_command
, pid_or_core_arg
,
883 !batch_flag
, RETURN_MASK_ALL
);
885 else /* Can't be a pid, better be a corefile. */
886 catch_command_errors (core_file_command
, pid_or_core_arg
,
887 !batch_flag
, RETURN_MASK_ALL
);
891 set_inferior_io_terminal (ttyarg
);
893 /* Error messages should no longer be distinguished with extra output. */
894 error_pre_print
= NULL
;
895 quit_pre_print
= NULL
;
896 warning_pre_print
= _("warning: ");
898 /* Read the .gdbinit file in the current directory, *if* it isn't
899 the same as the $HOME/.gdbinit file (it should exist, also). */
900 if (local_gdbinit
&& !inhibit_gdbinit
)
901 catch_command_errors (source_script
, local_gdbinit
, 0, RETURN_MASK_ALL
);
903 /* Now that all .gdbinit's have been read and all -d options have been
904 processed, we can read any scripts mentioned in SYMARG.
905 We wait until now because it is common to add to the source search
906 path in local_gdbinit. */
907 gdbpy_global_auto_load
= save_auto_load
;
908 ALL_OBJFILES (objfile
)
909 load_auto_scripts_for_objfile (objfile
);
911 for (i
= 0; i
< ncmd
; i
++)
913 if (cmdarg
[i
].type
== CMDARG_FILE
)
914 catch_command_errors (source_script
, cmdarg
[i
].string
,
915 !batch_flag
, RETURN_MASK_ALL
);
916 else /* cmdarg[i].type == CMDARG_COMMAND */
917 catch_command_errors (execute_command
, cmdarg
[i
].string
,
918 !batch_flag
, RETURN_MASK_ALL
);
922 /* Read in the old history after all the command files have been
928 /* We have hit the end of the batch file. */
929 quit_force (NULL
, 0);
932 /* Show time and/or space usage. */
933 do_cleanups (pre_stat_chain
);
935 /* NOTE: cagney/1999-11-07: There is probably no reason for not
936 moving this loop and the code found in captured_command_loop()
937 into the command_loop() proper. The main thing holding back that
938 change - SET_TOP_LEVEL() - has been eliminated. */
941 catch_errors (captured_command_loop
, 0, "", RETURN_MASK_ALL
);
943 /* No exit -- exit is through quit_command. */
947 gdb_main (struct captured_main_args
*args
)
949 use_windows
= args
->use_windows
;
950 catch_errors (captured_main
, args
, "", RETURN_MASK_ALL
);
951 /* The only way to end up here is by an error (normal exit is
952 handled by quit_force()), hence always return an error status. */
957 /* Don't use *_filtered for printing help. We don't want to prompt
958 for continue no matter how small the screen or how much we're going
962 print_gdb_help (struct ui_file
*stream
)
964 char *system_gdbinit
;
968 get_init_files (&system_gdbinit
, &home_gdbinit
, &local_gdbinit
);
970 fputs_unfiltered (_("\
971 This is the GNU debugger. Usage:\n\n\
972 gdb [options] [executable-file [core-file or process-id]]\n\
973 gdb [options] --args executable-file [inferior-arguments ...]\n\n\
976 fputs_unfiltered (_("\
977 --args Arguments after executable-file are passed to inferior\n\
979 fputs_unfiltered (_("\
980 -b BAUDRATE Set serial port baud rate used for remote debugging.\n\
981 --batch Exit after processing options.\n\
982 --batch-silent As for --batch, but suppress all gdb stdout output.\n\
983 --return-child-result\n\
984 GDB exit code will be the child's exit code.\n\
985 --cd=DIR Change current directory to DIR.\n\
986 --command=FILE, -x Execute GDB commands from FILE.\n\
987 --eval-command=COMMAND, -ex\n\
988 Execute a single GDB command.\n\
989 May be used multiple times and in conjunction\n\
991 --core=COREFILE Analyze the core dump COREFILE.\n\
992 --pid=PID Attach to running process PID.\n\
994 fputs_unfiltered (_("\
995 --dbx DBX compatibility mode.\n\
996 --directory=DIR Search for source files in DIR.\n\
997 --epoch Output information used by epoch emacs-GDB interface.\n\
998 --exec=EXECFILE Use EXECFILE as the executable.\n\
999 --fullname Output information used by emacs-GDB interface.\n\
1000 --help Print this message.\n\
1002 fputs_unfiltered (_("\
1003 --interpreter=INTERP\n\
1004 Select a specific interpreter / user interface\n\
1006 fputs_unfiltered (_("\
1007 -l TIMEOUT Set timeout in seconds for remote debugging.\n\
1008 --nw Do not use a window interface.\n\
1009 --nx Do not read "), stream
);
1010 fputs_unfiltered (gdbinit
, stream
);
1011 fputs_unfiltered (_(" file.\n\
1012 --quiet Do not print version number on startup.\n\
1013 --readnow Fully read symbol files on first access.\n\
1015 fputs_unfiltered (_("\
1016 --se=FILE Use FILE as symbol file and executable file.\n\
1017 --symbols=SYMFILE Read symbols from SYMFILE.\n\
1018 --tty=TTY Use TTY for input/output by the program being debugged.\n\
1021 fputs_unfiltered (_("\
1022 --tui Use a terminal user interface.\n\
1025 fputs_unfiltered (_("\
1026 --version Print version information and then exit.\n\
1027 -w Use a window interface.\n\
1028 --write Set writing into executable and core files.\n\
1029 --xdb XDB compatibility mode.\n\
1031 fputs_unfiltered (_("\n\
1032 At startup, GDB reads the following init files and executes their commands:\n\
1035 fprintf_unfiltered (stream
, _("\
1036 * system-wide init file: %s\n\
1037 "), system_gdbinit
);
1039 fprintf_unfiltered (stream
, _("\
1040 * user-specific init file: %s\n\
1043 fprintf_unfiltered (stream
, _("\
1044 * local init file: ./%s\n\
1046 fputs_unfiltered (_("\n\
1047 For more information, type \"help\" from within GDB, or consult the\n\
1048 GDB manual (available as on-line info or a printed manual).\n\
1050 if (REPORT_BUGS_TO
[0] && stream
== gdb_stdout
)
1051 fprintf_unfiltered (stream
, _("\
1052 Report bugs to \"%s\".\n\
1053 "), REPORT_BUGS_TO
);