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;
88 /* GDB as it has been invoked from the command line (i.e. argv[0]). */
89 static char *gdb_program_name
;
91 static void print_gdb_help (struct ui_file
*);
93 /* Relocate a file or directory. PROGNAME is the name by which gdb
94 was invoked (i.e., argv[0]). INITIAL is the default value for the
95 file or directory. FLAG is true if the value is relocatable, false
96 otherwise. Returns a newly allocated string; this may return NULL
97 under the same conditions as make_relative_prefix. */
100 relocate_path (const char *progname
, const char *initial
, int flag
)
103 return make_relative_prefix (progname
, BINDIR
, initial
);
104 return xstrdup (initial
);
107 /* Like relocate_path, but specifically checks for a directory.
108 INITIAL is relocated according to the rules of relocate_path. If
109 the result is a directory, it is used; otherwise, INITIAL is used.
110 The chosen directory is then canonicalized using lrealpath. This
111 function always returns a newly-allocated string. */
114 relocate_gdb_directory (const char *initial
, int flag
)
118 dir
= relocate_path (gdb_program_name
, initial
, flag
);
123 if (stat (dir
, &s
) != 0 || !S_ISDIR (s
.st_mode
))
130 dir
= xstrdup (initial
);
132 /* Canonicalize the directory. */
135 char *canon_sysroot
= lrealpath (dir
);
147 /* Compute the locations of init files that GDB should source and
148 return them in SYSTEM_GDBINIT, HOME_GDBINIT, LOCAL_GDBINIT. If
149 there is no system gdbinit (resp. home gdbinit and local gdbinit)
150 to be loaded, then SYSTEM_GDBINIT (resp. HOME_GDBINIT and
151 LOCAL_GDBINIT) is set to NULL. */
153 get_init_files (char **system_gdbinit
,
155 char **local_gdbinit
)
157 static char *sysgdbinit
= NULL
;
158 static char *homeinit
= NULL
;
159 static char *localinit
= NULL
;
160 static int initialized
= 0;
164 struct stat homebuf
, cwdbuf
, s
;
165 char *homedir
, *relocated_sysgdbinit
;
167 if (SYSTEM_GDBINIT
[0])
169 relocated_sysgdbinit
= relocate_path (gdb_program_name
,
171 SYSTEM_GDBINIT_RELOCATABLE
);
172 if (relocated_sysgdbinit
&& stat (relocated_sysgdbinit
, &s
) == 0)
173 sysgdbinit
= relocated_sysgdbinit
;
175 xfree (relocated_sysgdbinit
);
178 homedir
= getenv ("HOME");
180 /* If the .gdbinit file in the current directory is the same as
181 the $HOME/.gdbinit file, it should not be sourced. homebuf
182 and cwdbuf are used in that purpose. Make sure that the stats
183 are zero in case one of them fails (this guarantees that they
184 won't match if either exists). */
186 memset (&homebuf
, 0, sizeof (struct stat
));
187 memset (&cwdbuf
, 0, sizeof (struct stat
));
191 homeinit
= xstrprintf ("%s/%s", homedir
, gdbinit
);
192 if (stat (homeinit
, &homebuf
) != 0)
199 if (stat (gdbinit
, &cwdbuf
) == 0)
202 || memcmp ((char *) &homebuf
, (char *) &cwdbuf
,
203 sizeof (struct stat
)))
210 *system_gdbinit
= sysgdbinit
;
211 *home_gdbinit
= homeinit
;
212 *local_gdbinit
= localinit
;
215 /* Call command_loop. If it happens to return, pass that through as a
216 non-zero return status. */
219 captured_command_loop (void *data
)
221 /* Top-level execution commands can be run on the background from
223 interpreter_async
= 1;
225 current_interp_command_loop ();
226 /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
227 would clean things up (restoring the cleanup chain) to the state
228 they were just prior to the call. Technically, this means that
229 the do_cleanups() below is redundant. Unfortunately, many FUNCs
230 are not that well behaved. do_cleanups should either be replaced
231 with a do_cleanups call (to cover the problem) or an assertion
232 check to detect bad FUNCs code. */
233 do_cleanups (ALL_CLEANUPS
);
234 /* If the command_loop returned, normally (rather than threw an
235 error) we try to quit. If the quit is aborted, catch_errors()
236 which called this catch the signal and restart the command
238 quit_command (NULL
, instream
== stdin
);
242 /* Arguments of --command option and its counterpart. */
243 typedef struct cmdarg
{
244 /* Type of this option. */
246 /* Option type -x. */
249 /* Option type -ex. */
253 /* Value of this option - filename or the GDB command itself. String memory
254 is not owned by this structure despite it is 'const'. */
258 /* Define type VEC (cmdarg_s). */
259 DEF_VEC_O (cmdarg_s
);
262 captured_main (void *data
)
264 struct captured_main_args
*context
= data
;
265 int argc
= context
->argc
;
266 char **argv
= context
->argv
;
267 static int quiet
= 0;
268 static int set_args
= 0;
270 /* Pointers to various arguments from command line. */
272 char *execarg
= NULL
;
274 char *corearg
= NULL
;
275 char *pid_or_core_arg
= NULL
;
279 /* These are static so that we can take their address in an
281 static int print_help
;
282 static int print_version
;
284 /* Pointers to all arguments of --command option. */
285 VEC (cmdarg_s
) *cmdarg_vec
= NULL
;
286 struct cmdarg
*cmdarg_p
;
288 /* Indices of all arguments of --directory option. */
290 /* Allocated size. */
292 /* Number of elements used. */
295 /* gdb init files. */
296 char *system_gdbinit
;
302 struct objfile
*objfile
;
304 struct cleanup
*pre_stat_chain
;
307 /* Set this before calling make_command_stats_cleanup. */
308 lim_at_start
= (char *) sbrk (0);
311 pre_stat_chain
= make_command_stats_cleanup (0);
313 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
314 setlocale (LC_MESSAGES
, "");
316 #if defined (HAVE_SETLOCALE)
317 setlocale (LC_CTYPE
, "");
319 bindtextdomain (PACKAGE
, LOCALEDIR
);
320 textdomain (PACKAGE
);
322 make_cleanup (VEC_cleanup (cmdarg_s
), &cmdarg_vec
);
324 dirarg
= (char **) xmalloc (dirsize
* sizeof (*dirarg
));
328 saved_command_line
= (char *) xmalloc (saved_command_line_size
);
329 saved_command_line
[0] = '\0';
332 gdb_stdout
= stdio_fileopen (stdout
);
333 gdb_stderr
= stdio_fileopen (stderr
);
334 gdb_stdlog
= gdb_stderr
; /* for moment */
335 gdb_stdtarg
= gdb_stderr
; /* for moment */
336 gdb_stdin
= stdio_fileopen (stdin
);
337 gdb_stdtargerr
= gdb_stderr
; /* for moment */
338 gdb_stdtargin
= gdb_stdin
; /* for moment */
340 gdb_program_name
= xstrdup (argv
[0]);
342 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
343 /* Don't use *_filtered or warning() (which relies on
344 current_target) until after initialize_all_files(). */
345 fprintf_unfiltered (gdb_stderr
,
346 _("%s: warning: error finding "
347 "working directory: %s\n"),
348 argv
[0], safe_strerror (errno
));
350 current_directory
= gdb_dirbuf
;
352 /* Set the sysroot path. */
353 gdb_sysroot
= relocate_gdb_directory (TARGET_SYSTEM_ROOT
,
354 TARGET_SYSTEM_ROOT_RELOCATABLE
);
356 debug_file_directory
= relocate_gdb_directory (DEBUGDIR
,
357 DEBUGDIR_RELOCATABLE
);
359 gdb_datadir
= relocate_gdb_directory (GDB_DATADIR
,
360 GDB_DATADIR_RELOCATABLE
);
362 #ifdef WITH_PYTHON_PATH
364 /* For later use in helping Python find itself. */
365 char *tmp
= concat (WITH_PYTHON_PATH
, SLASH_STRING
, "lib", NULL
);
367 python_libdir
= relocate_gdb_directory (tmp
, PYTHON_PATH_RELOCATABLE
);
373 add_substitute_path_rule (RELOC_SRCDIR
,
374 make_relative_prefix (argv
[0], BINDIR
,
378 /* There will always be an interpreter. Either the one passed into
379 this captured main, or one specified by the user at start up, or
380 the console. Initialize the interpreter to the one requested by
382 interpreter_p
= xstrdup (context
->interpreter_p
);
384 /* Parse arguments and options. */
387 /* When var field is 0, use flag field to record the equivalent
388 short option (or arbitrary numbers starting at 10 for those
389 with no equivalent). */
399 static struct option long_options
[] =
401 {"tui", no_argument
, 0, OPT_TUI
},
402 {"xdb", no_argument
, &xdb_commands
, 1},
403 {"dbx", no_argument
, &dbx_commands
, 1},
404 {"readnow", no_argument
, &readnow_symbol_files
, 1},
405 {"r", no_argument
, &readnow_symbol_files
, 1},
406 {"quiet", no_argument
, &quiet
, 1},
407 {"q", no_argument
, &quiet
, 1},
408 {"silent", no_argument
, &quiet
, 1},
409 {"nx", no_argument
, &inhibit_gdbinit
, 1},
410 {"n", no_argument
, &inhibit_gdbinit
, 1},
411 {"batch-silent", no_argument
, 0, 'B'},
412 {"batch", no_argument
, &batch_flag
, 1},
413 {"epoch", no_argument
, &epoch_interface
, 1},
415 /* This is a synonym for "--annotate=1". --annotate is now
416 preferred, but keep this here for a long time because people
417 will be running emacses which use --fullname. */
418 {"fullname", no_argument
, 0, 'f'},
419 {"f", no_argument
, 0, 'f'},
421 {"annotate", required_argument
, 0, OPT_ANNOTATE
},
422 {"help", no_argument
, &print_help
, 1},
423 {"se", required_argument
, 0, OPT_SE
},
424 {"symbols", required_argument
, 0, 's'},
425 {"s", required_argument
, 0, 's'},
426 {"exec", required_argument
, 0, 'e'},
427 {"e", required_argument
, 0, 'e'},
428 {"core", required_argument
, 0, 'c'},
429 {"c", required_argument
, 0, 'c'},
430 {"pid", required_argument
, 0, 'p'},
431 {"p", required_argument
, 0, 'p'},
432 {"command", required_argument
, 0, 'x'},
433 {"eval-command", required_argument
, 0, 'X'},
434 {"version", no_argument
, &print_version
, 1},
435 {"x", required_argument
, 0, 'x'},
436 {"ex", required_argument
, 0, 'X'},
438 {"tclcommand", required_argument
, 0, 'z'},
439 {"enable-external-editor", no_argument
, 0, 'y'},
440 {"editor-command", required_argument
, 0, 'w'},
442 {"ui", required_argument
, 0, 'i'},
443 {"interpreter", required_argument
, 0, 'i'},
444 {"i", required_argument
, 0, 'i'},
445 {"directory", required_argument
, 0, 'd'},
446 {"d", required_argument
, 0, 'd'},
447 {"data-directory", required_argument
, 0, 'D'},
448 {"cd", required_argument
, 0, OPT_CD
},
449 {"tty", required_argument
, 0, 't'},
450 {"baud", required_argument
, 0, 'b'},
451 {"b", required_argument
, 0, 'b'},
452 {"nw", no_argument
, NULL
, OPT_NOWINDOWS
},
453 {"nowindows", no_argument
, NULL
, OPT_NOWINDOWS
},
454 {"w", no_argument
, NULL
, OPT_WINDOWS
},
455 {"windows", no_argument
, NULL
, OPT_WINDOWS
},
456 {"statistics", no_argument
, 0, OPT_STATISTICS
},
457 {"write", no_argument
, &write_files
, 1},
458 {"args", no_argument
, &set_args
, 1},
459 {"l", required_argument
, 0, 'l'},
460 {"return-child-result", no_argument
, &return_child_result
, 1},
461 {"use-deprecated-index-sections", no_argument
,
462 &use_deprecated_index_sections
, 1},
463 {0, no_argument
, 0, 0}
470 c
= getopt_long_only (argc
, argv
, "",
471 long_options
, &option_index
);
472 if (c
== EOF
|| set_args
)
475 /* Long option that takes an argument. */
476 if (c
== 0 && long_options
[option_index
].flag
== 0)
477 c
= long_options
[option_index
].val
;
482 /* Long option that just sets a flag. */
492 /* FIXME: what if the syntax is wrong (e.g. not digits)? */
493 annotation_level
= atoi (optarg
);
496 /* Enable the display of both time and space usage. */
497 set_display_time (1);
498 set_display_space (1);
501 /* --tui is equivalent to -i=tui. */
503 xfree (interpreter_p
);
504 interpreter_p
= xstrdup (INTERP_TUI
);
506 fprintf_unfiltered (gdb_stderr
,
507 _("%s: TUI mode is not supported\n"),
513 /* FIXME: cagney/2003-03-01: Not sure if this option is
514 actually useful, and if it is, what it should do. */
516 /* --windows is equivalent to -i=insight. */
517 xfree (interpreter_p
);
518 interpreter_p
= xstrdup (INTERP_INSIGHT
);
523 /* -nw is equivalent to -i=console. */
524 xfree (interpreter_p
);
525 interpreter_p
= xstrdup (INTERP_CONSOLE
);
529 annotation_level
= 1;
530 /* We have probably been invoked from emacs. Disable
548 struct cmdarg cmdarg
= { CMDARG_FILE
, optarg
};
550 VEC_safe_push (cmdarg_s
, cmdarg_vec
, &cmdarg
);
555 struct cmdarg cmdarg
= { CMDARG_COMMAND
, optarg
};
557 VEC_safe_push (cmdarg_s
, cmdarg_vec
, &cmdarg
);
562 batch_flag
= batch_silent
= 1;
563 gdb_stdout
= ui_file_new();
567 gdb_datadir
= xstrdup (optarg
);
572 extern int gdbtk_test (char *);
574 if (!gdbtk_test (optarg
))
576 fprintf_unfiltered (gdb_stderr
,
577 _("%s: unable to load "
578 "tclcommand file \"%s\""),
585 /* Backwards compatibility only. */
589 /* Set the external editor commands when gdb is farming out files
590 to be edited by another program. */
591 extern char *external_editor_command
;
593 external_editor_command
= xstrdup (optarg
);
598 xfree (interpreter_p
);
599 interpreter_p
= xstrdup (optarg
);
602 dirarg
[ndir
++] = optarg
;
606 dirarg
= (char **) xrealloc ((char *) dirarg
,
607 dirsize
* sizeof (*dirarg
));
621 i
= strtol (optarg
, &p
, 0);
622 if (i
== 0 && p
== optarg
)
624 /* Don't use *_filtered or warning() (which relies on
625 current_target) until after initialize_all_files(). */
629 _("warning: could not set baud rate to `%s'.\n"), optarg
);
639 i
= strtol (optarg
, &p
, 0);
640 if (i
== 0 && p
== optarg
)
642 /* Don't use *_filtered or warning() (which relies on
643 current_target) until after initialize_all_files(). */
645 fprintf_unfiltered (gdb_stderr
,
646 _("warning: could not set "
647 "timeout limit to `%s'.\n"), optarg
);
654 fprintf_unfiltered (gdb_stderr
,
655 _("Use `%s --help' for a "
656 "complete list of options.\n"),
662 /* If --help or --version, disable window interface. */
663 if (print_help
|| print_version
)
672 /* Initialize all files. Give the interpreter a chance to take
673 control of the console via the deprecated_init_ui_hook (). */
676 /* Now that gdb_init has created the initial inferior, we're in
677 position to set args for that inferior. */
680 /* The remaining options are the command-line options for the
681 inferior. The first one is the sym/exec file, and the rest
685 fprintf_unfiltered (gdb_stderr
,
686 _("%s: `--args' specified but "
687 "no program specified\n"),
691 symarg
= argv
[optind
];
692 execarg
= argv
[optind
];
694 set_inferior_args_vector (argc
- optind
, &argv
[optind
]);
698 /* OK, that's all the options. */
700 /* The first argument, if specified, is the name of the
704 symarg
= argv
[optind
];
705 execarg
= argv
[optind
];
709 /* If the user hasn't already specified a PID or the name of a
710 core file, then a second optional argument is allowed. If
711 present, this argument should be interpreted as either a
712 PID or a core file, whichever works. */
713 if (pidarg
== NULL
&& corearg
== NULL
&& optind
< argc
)
715 pid_or_core_arg
= argv
[optind
];
719 /* Any argument left on the command line is unexpected and
720 will be ignored. Inform the user. */
722 fprintf_unfiltered (gdb_stderr
,
723 _("Excess command line "
724 "arguments ignored. (%s%s)\n"),
726 (optind
== argc
- 1) ? "" : " ...");
729 /* Lookup gdbinit files. Note that the gdbinit file name may be
730 overriden during file initialization, so get_init_files should be
731 called after gdb_init. */
732 get_init_files (&system_gdbinit
, &home_gdbinit
, &local_gdbinit
);
734 /* Do these (and anything which might call wrap_here or *_filtered)
735 after initialize_all_files() but before the interpreter has been
736 installed. Otherwize the help/version messages will be eaten by
737 the interpreter's output handler. */
741 print_gdb_version (gdb_stdout
);
743 printf_filtered ("\n");
749 print_gdb_help (gdb_stdout
);
750 fputs_unfiltered ("\n", gdb_stdout
);
754 /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets
755 GDB retain the old MI1 interpreter startup behavior. Output the
756 copyright message before the interpreter is installed. That way
757 it isn't encapsulated in MI output. */
758 if (!quiet
&& strcmp (interpreter_p
, INTERP_MI1
) == 0)
760 /* Print all the junk at the top, with trailing "..." if we are
761 about to read a symbol file (possibly slowly). */
762 print_gdb_version (gdb_stdout
);
764 printf_filtered ("..");
766 printf_filtered ("\n");
767 gdb_flush (gdb_stdout
); /* Force to screen during slow
771 /* Install the default UI. All the interpreters should have had a
772 look at things by now. Initialize the default interpreter. */
776 struct interp
*interp
= interp_lookup (interpreter_p
);
779 error (_("Interpreter `%s' unrecognized"), interpreter_p
);
781 if (!interp_set (interp
, 1))
783 fprintf_unfiltered (gdb_stderr
,
784 "Interpreter `%s' failed to initialize.\n",
790 /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets
791 GDB retain the old MI1 interpreter startup behavior. Output the
792 copyright message after the interpreter is installed when it is
793 any sane interpreter. */
794 if (!quiet
&& !current_interp_named_p (INTERP_MI1
))
796 /* Print all the junk at the top, with trailing "..." if we are
797 about to read a symbol file (possibly slowly). */
798 print_gdb_version (gdb_stdout
);
800 printf_filtered ("..");
802 printf_filtered ("\n");
803 gdb_flush (gdb_stdout
); /* Force to screen during slow
807 /* Set off error and warning messages with a blank line. */
808 error_pre_print
= "\n";
809 quit_pre_print
= error_pre_print
;
810 warning_pre_print
= _("\nwarning: ");
812 /* Read and execute the system-wide gdbinit file, if it exists.
813 This is done *before* all the command line arguments are
814 processed; it sets global parameters, which are independent of
815 what file you are debugging or what directory you are in. */
816 if (system_gdbinit
&& !inhibit_gdbinit
)
817 catch_command_errors (source_script
, system_gdbinit
, 0, RETURN_MASK_ALL
);
819 /* Read and execute $HOME/.gdbinit file, if it exists. This is done
820 *before* all the command line arguments are processed; it sets
821 global parameters, which are independent of what file you are
822 debugging or what directory you are in. */
824 if (home_gdbinit
&& !inhibit_gdbinit
)
825 catch_command_errors (source_script
, home_gdbinit
, 0, RETURN_MASK_ALL
);
827 /* Now perform all the actions indicated by the arguments. */
830 catch_command_errors (cd_command
, cdarg
, 0, RETURN_MASK_ALL
);
833 for (i
= 0; i
< ndir
; i
++)
834 catch_command_errors (directory_switch
, dirarg
[i
], 0, RETURN_MASK_ALL
);
837 /* Skip auto-loading section-specified scripts until we've sourced
838 local_gdbinit (which is often used to augment the source search
840 save_auto_load
= gdbpy_global_auto_load
;
841 gdbpy_global_auto_load
= 0;
845 && strcmp (execarg
, symarg
) == 0)
847 /* The exec file and the symbol-file are the same. If we can't
848 open it, better only print one error message.
849 catch_command_errors returns non-zero on success! */
850 if (catch_command_errors (exec_file_attach
, execarg
,
851 !batch_flag
, RETURN_MASK_ALL
))
852 catch_command_errors (symbol_file_add_main
, symarg
,
853 !batch_flag
, RETURN_MASK_ALL
);
858 catch_command_errors (exec_file_attach
, execarg
,
859 !batch_flag
, RETURN_MASK_ALL
);
861 catch_command_errors (symbol_file_add_main
, symarg
,
862 !batch_flag
, RETURN_MASK_ALL
);
865 if (corearg
&& pidarg
)
866 error (_("Can't attach to process and specify "
867 "a core file at the same time."));
870 catch_command_errors (core_file_command
, corearg
,
871 !batch_flag
, RETURN_MASK_ALL
);
872 else if (pidarg
!= NULL
)
873 catch_command_errors (attach_command
, pidarg
,
874 !batch_flag
, RETURN_MASK_ALL
);
875 else if (pid_or_core_arg
)
877 /* The user specified 'gdb program pid' or gdb program core'.
878 If pid_or_core_arg's first character is a digit, try attach
879 first and then corefile. Otherwise try just corefile. */
881 if (isdigit (pid_or_core_arg
[0]))
883 if (catch_command_errors (attach_command
, pid_or_core_arg
,
884 !batch_flag
, RETURN_MASK_ALL
) == 0)
885 catch_command_errors (core_file_command
, pid_or_core_arg
,
886 !batch_flag
, RETURN_MASK_ALL
);
888 else /* Can't be a pid, better be a corefile. */
889 catch_command_errors (core_file_command
, pid_or_core_arg
,
890 !batch_flag
, RETURN_MASK_ALL
);
894 set_inferior_io_terminal (ttyarg
);
896 /* Error messages should no longer be distinguished with extra output. */
897 error_pre_print
= NULL
;
898 quit_pre_print
= NULL
;
899 warning_pre_print
= _("warning: ");
901 /* Read the .gdbinit file in the current directory, *if* it isn't
902 the same as the $HOME/.gdbinit file (it should exist, also). */
903 if (local_gdbinit
&& !inhibit_gdbinit
)
904 catch_command_errors (source_script
, local_gdbinit
, 0, RETURN_MASK_ALL
);
906 /* Now that all .gdbinit's have been read and all -d options have been
907 processed, we can read any scripts mentioned in SYMARG.
908 We wait until now because it is common to add to the source search
909 path in local_gdbinit. */
910 gdbpy_global_auto_load
= save_auto_load
;
911 ALL_OBJFILES (objfile
)
912 load_auto_scripts_for_objfile (objfile
);
914 for (i
= 0; VEC_iterate (cmdarg_s
, cmdarg_vec
, i
, cmdarg_p
); i
++)
915 switch (cmdarg_p
->type
)
918 catch_command_errors (source_script
, cmdarg_p
->string
,
919 !batch_flag
, RETURN_MASK_ALL
);
922 catch_command_errors (execute_command
, cmdarg_p
->string
,
923 !batch_flag
, RETURN_MASK_ALL
);
927 /* Read in the old history after all the command files have been
933 /* We have hit the end of the batch file. */
934 quit_force (NULL
, 0);
937 /* Show time and/or space usage. */
938 do_cleanups (pre_stat_chain
);
940 /* NOTE: cagney/1999-11-07: There is probably no reason for not
941 moving this loop and the code found in captured_command_loop()
942 into the command_loop() proper. The main thing holding back that
943 change - SET_TOP_LEVEL() - has been eliminated. */
946 catch_errors (captured_command_loop
, 0, "", RETURN_MASK_ALL
);
948 /* No exit -- exit is through quit_command. */
952 gdb_main (struct captured_main_args
*args
)
954 use_windows
= args
->use_windows
;
955 catch_errors (captured_main
, args
, "", RETURN_MASK_ALL
);
956 /* The only way to end up here is by an error (normal exit is
957 handled by quit_force()), hence always return an error status. */
962 /* Don't use *_filtered for printing help. We don't want to prompt
963 for continue no matter how small the screen or how much we're going
967 print_gdb_help (struct ui_file
*stream
)
969 char *system_gdbinit
;
973 get_init_files (&system_gdbinit
, &home_gdbinit
, &local_gdbinit
);
975 fputs_unfiltered (_("\
976 This is the GNU debugger. Usage:\n\n\
977 gdb [options] [executable-file [core-file or process-id]]\n\
978 gdb [options] --args executable-file [inferior-arguments ...]\n\n\
981 fputs_unfiltered (_("\
982 --args Arguments after executable-file are passed to inferior\n\
984 fputs_unfiltered (_("\
985 -b BAUDRATE Set serial port baud rate used for remote debugging.\n\
986 --batch Exit after processing options.\n\
987 --batch-silent As for --batch, but suppress all gdb stdout output.\n\
988 --return-child-result\n\
989 GDB exit code will be the child's exit code.\n\
990 --cd=DIR Change current directory to DIR.\n\
991 --command=FILE, -x Execute GDB commands from FILE.\n\
992 --eval-command=COMMAND, -ex\n\
993 Execute a single GDB command.\n\
994 May be used multiple times and in conjunction\n\
996 --core=COREFILE Analyze the core dump COREFILE.\n\
997 --pid=PID Attach to running process PID.\n\
999 fputs_unfiltered (_("\
1000 --dbx DBX compatibility mode.\n\
1001 --directory=DIR Search for source files in DIR.\n\
1002 --epoch Output information used by epoch emacs-GDB interface.\n\
1003 --exec=EXECFILE Use EXECFILE as the executable.\n\
1004 --fullname Output information used by emacs-GDB interface.\n\
1005 --help Print this message.\n\
1007 fputs_unfiltered (_("\
1008 --interpreter=INTERP\n\
1009 Select a specific interpreter / user interface\n\
1011 fputs_unfiltered (_("\
1012 -l TIMEOUT Set timeout in seconds for remote debugging.\n\
1013 --nw Do not use a window interface.\n\
1014 --nx Do not read "), stream
);
1015 fputs_unfiltered (gdbinit
, stream
);
1016 fputs_unfiltered (_(" file.\n\
1017 --quiet Do not print version number on startup.\n\
1018 --readnow Fully read symbol files on first access.\n\
1020 fputs_unfiltered (_("\
1021 --se=FILE Use FILE as symbol file and executable file.\n\
1022 --symbols=SYMFILE Read symbols from SYMFILE.\n\
1023 --tty=TTY Use TTY for input/output by the program being debugged.\n\
1026 fputs_unfiltered (_("\
1027 --tui Use a terminal user interface.\n\
1030 fputs_unfiltered (_("\
1031 --use-deprecated-index-sections\n\
1032 Do not reject deprecated .gdb_index sections.\n\
1034 fputs_unfiltered (_("\
1035 --version Print version information and then exit.\n\
1036 -w Use a window interface.\n\
1037 --write Set writing into executable and core files.\n\
1038 --xdb XDB compatibility mode.\n\
1040 fputs_unfiltered (_("\n\
1041 At startup, GDB reads the following init files and executes their commands:\n\
1044 fprintf_unfiltered (stream
, _("\
1045 * system-wide init file: %s\n\
1046 "), system_gdbinit
);
1048 fprintf_unfiltered (stream
, _("\
1049 * user-specific init file: %s\n\
1052 fprintf_unfiltered (stream
, _("\
1053 * local init file: ./%s\n\
1055 fputs_unfiltered (_("\n\
1056 For more information, type \"help\" from within GDB, or consult the\n\
1057 GDB manual (available as on-line info or a printed manual).\n\
1059 if (REPORT_BUGS_TO
[0] && stream
== gdb_stdout
)
1060 fprintf_unfiltered (stream
, _("\
1061 Report bugs to \"%s\".\n\
1062 "), REPORT_BUGS_TO
);