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 current_interp_command_loop ();
231 /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
232 would clean things up (restoring the cleanup chain) to the state
233 they were just prior to the call. Technically, this means that
234 the do_cleanups() below is redundant. Unfortunately, many FUNCs
235 are not that well behaved. do_cleanups should either be replaced
236 with a do_cleanups call (to cover the problem) or an assertion
237 check to detect bad FUNCs code. */
238 do_cleanups (ALL_CLEANUPS
);
239 /* If the command_loop returned, normally (rather than threw an
240 error) we try to quit. If the quit is aborted, catch_errors()
241 which called this catch the signal and restart the command
243 quit_command (NULL
, instream
== stdin
);
248 captured_main (void *data
)
250 struct captured_main_args
*context
= data
;
251 int argc
= context
->argc
;
252 char **argv
= context
->argv
;
253 static int quiet
= 0;
254 static int set_args
= 0;
256 /* Pointers to various arguments from command line. */
258 char *execarg
= NULL
;
260 char *corearg
= NULL
;
261 char *pid_or_core_arg
= NULL
;
265 /* These are static so that we can take their address in an
267 static int print_help
;
268 static int print_version
;
270 /* Pointers to all arguments of --command option. */
278 /* Allocated size of cmdarg. */
280 /* Number of elements of cmdarg used. */
283 /* Indices of all arguments of --directory option. */
285 /* Allocated size. */
287 /* Number of elements used. */
290 /* gdb init files. */
291 char *system_gdbinit
;
297 struct objfile
*objfile
;
299 struct cleanup
*pre_stat_chain
= make_command_stats_cleanup (0);
301 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
302 setlocale (LC_MESSAGES
, "");
304 #if defined (HAVE_SETLOCALE)
305 setlocale (LC_CTYPE
, "");
307 bindtextdomain (PACKAGE
, LOCALEDIR
);
308 textdomain (PACKAGE
);
311 lim_at_start
= (char *) sbrk (0);
315 cmdarg
= (struct cmdarg
*) xmalloc (cmdsize
* sizeof (*cmdarg
));
318 dirarg
= (char **) xmalloc (dirsize
* sizeof (*dirarg
));
322 saved_command_line
= (char *) xmalloc (saved_command_line_size
);
323 saved_command_line
[0] = '\0';
326 gdb_stdout
= stdio_fileopen (stdout
);
327 gdb_stderr
= stdio_fileopen (stderr
);
328 gdb_stdlog
= gdb_stderr
; /* for moment */
329 gdb_stdtarg
= gdb_stderr
; /* for moment */
330 gdb_stdin
= stdio_fileopen (stdin
);
331 gdb_stdtargerr
= gdb_stderr
; /* for moment */
332 gdb_stdtargin
= gdb_stdin
; /* for moment */
334 gdb_program_name
= xstrdup (argv
[0]);
336 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
337 /* Don't use *_filtered or warning() (which relies on
338 current_target) until after initialize_all_files(). */
339 fprintf_unfiltered (gdb_stderr
,
340 _("%s: warning: error finding "
341 "working directory: %s\n"),
342 argv
[0], safe_strerror (errno
));
344 current_directory
= gdb_dirbuf
;
346 /* Set the sysroot path. */
347 gdb_sysroot
= relocate_gdb_directory (TARGET_SYSTEM_ROOT
,
348 TARGET_SYSTEM_ROOT_RELOCATABLE
);
350 debug_file_directory
= relocate_gdb_directory (DEBUGDIR
,
351 DEBUGDIR_RELOCATABLE
);
353 gdb_datadir
= relocate_gdb_directory (GDB_DATADIR
,
354 GDB_DATADIR_RELOCATABLE
);
356 #ifdef WITH_PYTHON_PATH
358 /* For later use in helping Python find itself. */
359 char *tmp
= concat (WITH_PYTHON_PATH
, SLASH_STRING
, "lib", NULL
);
361 python_libdir
= relocate_gdb_directory (tmp
, PYTHON_PATH_RELOCATABLE
);
367 add_substitute_path_rule (RELOC_SRCDIR
,
368 make_relative_prefix (argv
[0], BINDIR
,
372 /* There will always be an interpreter. Either the one passed into
373 this captured main, or one specified by the user at start up, or
374 the console. Initialize the interpreter to the one requested by
376 interpreter_p
= xstrdup (context
->interpreter_p
);
378 /* Parse arguments and options. */
381 /* When var field is 0, use flag field to record the equivalent
382 short option (or arbitrary numbers starting at 10 for those
383 with no equivalent). */
393 static struct option long_options
[] =
395 {"tui", no_argument
, 0, OPT_TUI
},
396 {"xdb", no_argument
, &xdb_commands
, 1},
397 {"dbx", no_argument
, &dbx_commands
, 1},
398 {"readnow", no_argument
, &readnow_symbol_files
, 1},
399 {"r", no_argument
, &readnow_symbol_files
, 1},
400 {"quiet", no_argument
, &quiet
, 1},
401 {"q", no_argument
, &quiet
, 1},
402 {"silent", no_argument
, &quiet
, 1},
403 {"nx", no_argument
, &inhibit_gdbinit
, 1},
404 {"n", no_argument
, &inhibit_gdbinit
, 1},
405 {"batch-silent", no_argument
, 0, 'B'},
406 {"batch", no_argument
, &batch_flag
, 1},
407 {"epoch", no_argument
, &epoch_interface
, 1},
409 /* This is a synonym for "--annotate=1". --annotate is now
410 preferred, but keep this here for a long time because people
411 will be running emacses which use --fullname. */
412 {"fullname", no_argument
, 0, 'f'},
413 {"f", no_argument
, 0, 'f'},
415 {"annotate", required_argument
, 0, OPT_ANNOTATE
},
416 {"help", no_argument
, &print_help
, 1},
417 {"se", required_argument
, 0, OPT_SE
},
418 {"symbols", required_argument
, 0, 's'},
419 {"s", required_argument
, 0, 's'},
420 {"exec", required_argument
, 0, 'e'},
421 {"e", required_argument
, 0, 'e'},
422 {"core", required_argument
, 0, 'c'},
423 {"c", required_argument
, 0, 'c'},
424 {"pid", required_argument
, 0, 'p'},
425 {"p", required_argument
, 0, 'p'},
426 {"command", required_argument
, 0, 'x'},
427 {"eval-command", required_argument
, 0, 'X'},
428 {"version", no_argument
, &print_version
, 1},
429 {"x", required_argument
, 0, 'x'},
430 {"ex", required_argument
, 0, 'X'},
432 {"tclcommand", required_argument
, 0, 'z'},
433 {"enable-external-editor", no_argument
, 0, 'y'},
434 {"editor-command", required_argument
, 0, 'w'},
436 {"ui", required_argument
, 0, 'i'},
437 {"interpreter", required_argument
, 0, 'i'},
438 {"i", required_argument
, 0, 'i'},
439 {"directory", required_argument
, 0, 'd'},
440 {"d", required_argument
, 0, 'd'},
441 {"data-directory", required_argument
, 0, 'D'},
442 {"cd", required_argument
, 0, OPT_CD
},
443 {"tty", required_argument
, 0, 't'},
444 {"baud", required_argument
, 0, 'b'},
445 {"b", required_argument
, 0, 'b'},
446 {"nw", no_argument
, NULL
, OPT_NOWINDOWS
},
447 {"nowindows", no_argument
, NULL
, OPT_NOWINDOWS
},
448 {"w", no_argument
, NULL
, OPT_WINDOWS
},
449 {"windows", no_argument
, NULL
, OPT_WINDOWS
},
450 {"statistics", no_argument
, 0, OPT_STATISTICS
},
451 {"write", no_argument
, &write_files
, 1},
452 {"args", no_argument
, &set_args
, 1},
453 {"l", required_argument
, 0, 'l'},
454 {"return-child-result", no_argument
, &return_child_result
, 1},
455 {0, no_argument
, 0, 0}
462 c
= getopt_long_only (argc
, argv
, "",
463 long_options
, &option_index
);
464 if (c
== EOF
|| set_args
)
467 /* Long option that takes an argument. */
468 if (c
== 0 && long_options
[option_index
].flag
== 0)
469 c
= long_options
[option_index
].val
;
474 /* Long option that just sets a flag. */
484 /* FIXME: what if the syntax is wrong (e.g. not digits)? */
485 annotation_level
= atoi (optarg
);
488 /* Enable the display of both time and space usage. */
489 set_display_time (1);
490 set_display_space (1);
493 /* --tui is equivalent to -i=tui. */
495 xfree (interpreter_p
);
496 interpreter_p
= xstrdup (INTERP_TUI
);
498 fprintf_unfiltered (gdb_stderr
,
499 _("%s: TUI mode is not supported\n"),
505 /* FIXME: cagney/2003-03-01: Not sure if this option is
506 actually useful, and if it is, what it should do. */
508 /* --windows is equivalent to -i=insight. */
509 xfree (interpreter_p
);
510 interpreter_p
= xstrdup (INTERP_INSIGHT
);
515 /* -nw is equivalent to -i=console. */
516 xfree (interpreter_p
);
517 interpreter_p
= xstrdup (INTERP_CONSOLE
);
521 annotation_level
= 1;
522 /* We have probably been invoked from emacs. Disable
539 cmdarg
[ncmd
].type
= CMDARG_FILE
;
540 cmdarg
[ncmd
++].string
= optarg
;
544 cmdarg
= xrealloc ((char *) cmdarg
,
545 cmdsize
* sizeof (*cmdarg
));
549 cmdarg
[ncmd
].type
= CMDARG_COMMAND
;
550 cmdarg
[ncmd
++].string
= optarg
;
554 cmdarg
= xrealloc ((char *) cmdarg
,
555 cmdsize
* sizeof (*cmdarg
));
559 batch_flag
= batch_silent
= 1;
560 gdb_stdout
= ui_file_new();
564 gdb_datadir
= xstrdup (optarg
);
569 extern int gdbtk_test (char *);
571 if (!gdbtk_test (optarg
))
573 fprintf_unfiltered (gdb_stderr
,
574 _("%s: unable to load "
575 "tclcommand file \"%s\""),
582 /* Backwards compatibility only. */
586 external_editor_command
= xstrdup (optarg
);
591 xfree (interpreter_p
);
592 interpreter_p
= xstrdup (optarg
);
595 dirarg
[ndir
++] = optarg
;
599 dirarg
= (char **) xrealloc ((char *) dirarg
,
600 dirsize
* sizeof (*dirarg
));
614 i
= strtol (optarg
, &p
, 0);
615 if (i
== 0 && p
== optarg
)
617 /* Don't use *_filtered or warning() (which relies on
618 current_target) until after initialize_all_files(). */
622 _("warning: could not set baud rate to `%s'.\n"), optarg
);
632 i
= strtol (optarg
, &p
, 0);
633 if (i
== 0 && p
== optarg
)
635 /* Don't use *_filtered or warning() (which relies on
636 current_target) until after initialize_all_files(). */
638 fprintf_unfiltered (gdb_stderr
,
639 _("warning: could not set "
640 "timeout limit to `%s'.\n"), optarg
);
647 fprintf_unfiltered (gdb_stderr
,
648 _("Use `%s --help' for a "
649 "complete list of options.\n"),
655 /* If --help or --version, disable window interface. */
656 if (print_help
|| print_version
)
665 /* Initialize all files. Give the interpreter a chance to take
666 control of the console via the deprecated_init_ui_hook (). */
669 /* Now that gdb_init has created the initial inferior, we're in
670 position to set args for that inferior. */
673 /* The remaining options are the command-line options for the
674 inferior. The first one is the sym/exec file, and the rest
678 fprintf_unfiltered (gdb_stderr
,
679 _("%s: `--args' specified but "
680 "no program specified\n"),
684 symarg
= argv
[optind
];
685 execarg
= argv
[optind
];
687 set_inferior_args_vector (argc
- optind
, &argv
[optind
]);
691 /* OK, that's all the options. */
693 /* The first argument, if specified, is the name of the
697 symarg
= argv
[optind
];
698 execarg
= argv
[optind
];
702 /* If the user hasn't already specified a PID or the name of a
703 core file, then a second optional argument is allowed. If
704 present, this argument should be interpreted as either a
705 PID or a core file, whichever works. */
706 if (pidarg
== NULL
&& corearg
== NULL
&& optind
< argc
)
708 pid_or_core_arg
= argv
[optind
];
712 /* Any argument left on the command line is unexpected and
713 will be ignored. Inform the user. */
715 fprintf_unfiltered (gdb_stderr
,
716 _("Excess command line "
717 "arguments ignored. (%s%s)\n"),
719 (optind
== argc
- 1) ? "" : " ...");
722 /* Lookup gdbinit files. Note that the gdbinit file name may be
723 overriden during file initialization, so get_init_files should be
724 called after gdb_init. */
725 get_init_files (&system_gdbinit
, &home_gdbinit
, &local_gdbinit
);
727 /* Do these (and anything which might call wrap_here or *_filtered)
728 after initialize_all_files() but before the interpreter has been
729 installed. Otherwize the help/version messages will be eaten by
730 the interpreter's output handler. */
734 print_gdb_version (gdb_stdout
);
736 printf_filtered ("\n");
742 print_gdb_help (gdb_stdout
);
743 fputs_unfiltered ("\n", gdb_stdout
);
747 /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets
748 GDB retain the old MI1 interpreter startup behavior. Output the
749 copyright message before the interpreter is installed. That way
750 it isn't encapsulated in MI output. */
751 if (!quiet
&& strcmp (interpreter_p
, INTERP_MI1
) == 0)
753 /* Print all the junk at the top, with trailing "..." if we are
754 about to read a symbol file (possibly slowly). */
755 print_gdb_version (gdb_stdout
);
757 printf_filtered ("..");
759 printf_filtered ("\n");
760 gdb_flush (gdb_stdout
); /* Force to screen during slow
764 /* Install the default UI. All the interpreters should have had a
765 look at things by now. Initialize the default interpreter. */
769 struct interp
*interp
= interp_lookup (interpreter_p
);
772 error (_("Interpreter `%s' unrecognized"), interpreter_p
);
774 if (!interp_set (interp
, 1))
776 fprintf_unfiltered (gdb_stderr
,
777 "Interpreter `%s' failed to initialize.\n",
783 /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets
784 GDB retain the old MI1 interpreter startup behavior. Output the
785 copyright message after the interpreter is installed when it is
786 any sane interpreter. */
787 if (!quiet
&& !current_interp_named_p (INTERP_MI1
))
789 /* Print all the junk at the top, with trailing "..." if we are
790 about to read a symbol file (possibly slowly). */
791 print_gdb_version (gdb_stdout
);
793 printf_filtered ("..");
795 printf_filtered ("\n");
796 gdb_flush (gdb_stdout
); /* Force to screen during slow
800 /* Set off error and warning messages with a blank line. */
801 error_pre_print
= "\n";
802 quit_pre_print
= error_pre_print
;
803 warning_pre_print
= _("\nwarning: ");
805 /* Read and execute the system-wide gdbinit file, if it exists.
806 This is done *before* all the command line arguments are
807 processed; it sets global parameters, which are independent of
808 what file you are debugging or what directory you are in. */
809 if (system_gdbinit
&& !inhibit_gdbinit
)
810 catch_command_errors (source_script
, system_gdbinit
, 0, RETURN_MASK_ALL
);
812 /* Read and execute $HOME/.gdbinit file, if it exists. This is done
813 *before* all the command line arguments are processed; it sets
814 global parameters, which are independent of what file you are
815 debugging or what directory you are in. */
817 if (home_gdbinit
&& !inhibit_gdbinit
)
818 catch_command_errors (source_script
, home_gdbinit
, 0, RETURN_MASK_ALL
);
820 /* Now perform all the actions indicated by the arguments. */
823 catch_command_errors (cd_command
, cdarg
, 0, RETURN_MASK_ALL
);
826 for (i
= 0; i
< ndir
; i
++)
827 catch_command_errors (directory_switch
, dirarg
[i
], 0, RETURN_MASK_ALL
);
830 /* Skip auto-loading section-specified scripts until we've sourced
831 local_gdbinit (which is often used to augment the source search
833 save_auto_load
= gdbpy_global_auto_load
;
834 gdbpy_global_auto_load
= 0;
838 && strcmp (execarg
, symarg
) == 0)
840 /* The exec file and the symbol-file are the same. If we can't
841 open it, better only print one error message.
842 catch_command_errors returns non-zero on success! */
843 if (catch_command_errors (exec_file_attach
, execarg
,
844 !batch_flag
, RETURN_MASK_ALL
))
845 catch_command_errors (symbol_file_add_main
, symarg
,
846 !batch_flag
, RETURN_MASK_ALL
);
851 catch_command_errors (exec_file_attach
, execarg
,
852 !batch_flag
, RETURN_MASK_ALL
);
854 catch_command_errors (symbol_file_add_main
, symarg
,
855 !batch_flag
, RETURN_MASK_ALL
);
858 if (corearg
&& pidarg
)
859 error (_("Can't attach to process and specify "
860 "a core file at the same time."));
863 catch_command_errors (core_file_command
, corearg
,
864 !batch_flag
, RETURN_MASK_ALL
);
865 else if (pidarg
!= NULL
)
866 catch_command_errors (attach_command
, pidarg
,
867 !batch_flag
, RETURN_MASK_ALL
);
868 else if (pid_or_core_arg
)
870 /* The user specified 'gdb program pid' or gdb program core'.
871 If pid_or_core_arg's first character is a digit, try attach
872 first and then corefile. Otherwise try just corefile. */
874 if (isdigit (pid_or_core_arg
[0]))
876 if (catch_command_errors (attach_command
, pid_or_core_arg
,
877 !batch_flag
, RETURN_MASK_ALL
) == 0)
878 catch_command_errors (core_file_command
, pid_or_core_arg
,
879 !batch_flag
, RETURN_MASK_ALL
);
881 else /* Can't be a pid, better be a corefile. */
882 catch_command_errors (core_file_command
, pid_or_core_arg
,
883 !batch_flag
, RETURN_MASK_ALL
);
887 set_inferior_io_terminal (ttyarg
);
889 /* Error messages should no longer be distinguished with extra output. */
890 error_pre_print
= NULL
;
891 quit_pre_print
= NULL
;
892 warning_pre_print
= _("warning: ");
894 /* Read the .gdbinit file in the current directory, *if* it isn't
895 the same as the $HOME/.gdbinit file (it should exist, also). */
896 if (local_gdbinit
&& !inhibit_gdbinit
)
897 catch_command_errors (source_script
, local_gdbinit
, 0, RETURN_MASK_ALL
);
899 /* Now that all .gdbinit's have been read and all -d options have been
900 processed, we can read any scripts mentioned in SYMARG.
901 We wait until now because it is common to add to the source search
902 path in local_gdbinit. */
903 gdbpy_global_auto_load
= save_auto_load
;
904 ALL_OBJFILES (objfile
)
905 load_auto_scripts_for_objfile (objfile
);
907 for (i
= 0; i
< ncmd
; i
++)
909 if (cmdarg
[i
].type
== CMDARG_FILE
)
910 catch_command_errors (source_script
, cmdarg
[i
].string
,
911 !batch_flag
, RETURN_MASK_ALL
);
912 else /* cmdarg[i].type == CMDARG_COMMAND */
913 catch_command_errors (execute_command
, cmdarg
[i
].string
,
914 !batch_flag
, RETURN_MASK_ALL
);
918 /* Read in the old history after all the command files have been
924 /* We have hit the end of the batch file. */
925 quit_force (NULL
, 0);
928 /* Show time and/or space usage. */
929 do_cleanups (pre_stat_chain
);
931 /* NOTE: cagney/1999-11-07: There is probably no reason for not
932 moving this loop and the code found in captured_command_loop()
933 into the command_loop() proper. The main thing holding back that
934 change - SET_TOP_LEVEL() - has been eliminated. */
937 catch_errors (captured_command_loop
, 0, "", RETURN_MASK_ALL
);
939 /* No exit -- exit is through quit_command. */
943 gdb_main (struct captured_main_args
*args
)
945 use_windows
= args
->use_windows
;
946 catch_errors (captured_main
, args
, "", RETURN_MASK_ALL
);
947 /* The only way to end up here is by an error (normal exit is
948 handled by quit_force()), hence always return an error status. */
953 /* Don't use *_filtered for printing help. We don't want to prompt
954 for continue no matter how small the screen or how much we're going
958 print_gdb_help (struct ui_file
*stream
)
960 char *system_gdbinit
;
964 get_init_files (&system_gdbinit
, &home_gdbinit
, &local_gdbinit
);
966 fputs_unfiltered (_("\
967 This is the GNU debugger. Usage:\n\n\
968 gdb [options] [executable-file [core-file or process-id]]\n\
969 gdb [options] --args executable-file [inferior-arguments ...]\n\n\
972 fputs_unfiltered (_("\
973 --args Arguments after executable-file are passed to inferior\n\
975 fputs_unfiltered (_("\
976 -b BAUDRATE Set serial port baud rate used for remote debugging.\n\
977 --batch Exit after processing options.\n\
978 --batch-silent As for --batch, but suppress all gdb stdout output.\n\
979 --return-child-result\n\
980 GDB exit code will be the child's exit code.\n\
981 --cd=DIR Change current directory to DIR.\n\
982 --command=FILE, -x Execute GDB commands from FILE.\n\
983 --eval-command=COMMAND, -ex\n\
984 Execute a single GDB command.\n\
985 May be used multiple times and in conjunction\n\
987 --core=COREFILE Analyze the core dump COREFILE.\n\
988 --pid=PID Attach to running process PID.\n\
990 fputs_unfiltered (_("\
991 --dbx DBX compatibility mode.\n\
992 --directory=DIR Search for source files in DIR.\n\
993 --epoch Output information used by epoch emacs-GDB interface.\n\
994 --exec=EXECFILE Use EXECFILE as the executable.\n\
995 --fullname Output information used by emacs-GDB interface.\n\
996 --help Print this message.\n\
998 fputs_unfiltered (_("\
999 --interpreter=INTERP\n\
1000 Select a specific interpreter / user interface\n\
1002 fputs_unfiltered (_("\
1003 -l TIMEOUT Set timeout in seconds for remote debugging.\n\
1004 --nw Do not use a window interface.\n\
1005 --nx Do not read "), stream
);
1006 fputs_unfiltered (gdbinit
, stream
);
1007 fputs_unfiltered (_(" file.\n\
1008 --quiet Do not print version number on startup.\n\
1009 --readnow Fully read symbol files on first access.\n\
1011 fputs_unfiltered (_("\
1012 --se=FILE Use FILE as symbol file and executable file.\n\
1013 --symbols=SYMFILE Read symbols from SYMFILE.\n\
1014 --tty=TTY Use TTY for input/output by the program being debugged.\n\
1017 fputs_unfiltered (_("\
1018 --tui Use a terminal user interface.\n\
1021 fputs_unfiltered (_("\
1022 --version Print version information and then exit.\n\
1023 -w Use a window interface.\n\
1024 --write Set writing into executable and core files.\n\
1025 --xdb XDB compatibility mode.\n\
1027 fputs_unfiltered (_("\n\
1028 At startup, GDB reads the following init files and executes their commands:\n\
1031 fprintf_unfiltered (stream
, _("\
1032 * system-wide init file: %s\n\
1033 "), system_gdbinit
);
1035 fprintf_unfiltered (stream
, _("\
1036 * user-specific init file: %s\n\
1039 fprintf_unfiltered (stream
, _("\
1040 * local init file: ./%s\n\
1042 fputs_unfiltered (_("\n\
1043 For more information, type \"help\" from within GDB, or consult the\n\
1044 GDB manual (available as on-line info or a printed manual).\n\
1046 if (REPORT_BUGS_TO
[0] && stream
== gdb_stdout
)
1047 fprintf_unfiltered (stream
, _("\
1048 Report bugs to \"%s\".\n\
1049 "), REPORT_BUGS_TO
);