1 /* Top level stuff for GDB, the GNU debugger.
3 Copyright (C) 1986-2013 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"
44 #include "auto-load.h"
47 #include "filenames.h"
49 /* The selected interpreter. This will be used as a set command
50 variable, so it should always be malloc'ed - since
51 do_setshow_command will free it. */
54 /* Whether xdb commands will be handled. */
57 /* Whether dbx commands will be handled. */
60 /* System root path, used to find libraries etc. */
61 char *gdb_sysroot
= 0;
63 /* GDB datadir, used to store data files. */
64 char *gdb_datadir
= 0;
66 /* Non-zero if GDB_DATADIR was provided on the command line.
67 This doesn't track whether data-directory is set later from the
68 command line, but we don't reread system.gdbinit when that happens. */
69 static int gdb_datadir_provided
= 0;
71 /* If gdb was configured with --with-python=/path,
72 the possibly relocated path to python's lib directory. */
73 char *python_libdir
= 0;
75 struct ui_file
*gdb_stdout
;
76 struct ui_file
*gdb_stderr
;
77 struct ui_file
*gdb_stdlog
;
78 struct ui_file
*gdb_stdin
;
79 /* Target IO streams. */
80 struct ui_file
*gdb_stdtargin
;
81 struct ui_file
*gdb_stdtarg
;
82 struct ui_file
*gdb_stdtargerr
;
84 /* True if --batch or --batch-silent was seen. */
87 /* Support for the --batch-silent option. */
90 /* Support for --return-child-result option.
91 Set the default to -1 to return error in the case
92 that the program does not run or does not complete. */
93 int return_child_result
= 0;
94 int return_child_result_value
= -1;
97 /* GDB as it has been invoked from the command line (i.e. argv[0]). */
98 static char *gdb_program_name
;
100 static void print_gdb_help (struct ui_file
*);
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 (*dir
== '\0' || 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
;
176 if (SYSTEM_GDBINIT
[0])
178 int datadir_len
= strlen (GDB_DATADIR
);
179 int sys_gdbinit_len
= strlen (SYSTEM_GDBINIT
);
180 char *relocated_sysgdbinit
;
182 /* If SYSTEM_GDBINIT lives in data-directory, and data-directory
183 has been provided, search for SYSTEM_GDBINIT there. */
184 if (gdb_datadir_provided
185 && datadir_len
< sys_gdbinit_len
186 && filename_ncmp (SYSTEM_GDBINIT
, GDB_DATADIR
, datadir_len
) == 0
187 && IS_DIR_SEPARATOR (SYSTEM_GDBINIT
[datadir_len
]))
189 /* Append the part of SYSTEM_GDBINIT that follows GDB_DATADIR
191 char *tmp_sys_gdbinit
= xstrdup (SYSTEM_GDBINIT
+ datadir_len
);
194 for (p
= tmp_sys_gdbinit
; IS_DIR_SEPARATOR (*p
); ++p
)
196 relocated_sysgdbinit
= concat (gdb_datadir
, SLASH_STRING
, p
,
198 xfree (tmp_sys_gdbinit
);
202 relocated_sysgdbinit
= relocate_path (gdb_program_name
,
204 SYSTEM_GDBINIT_RELOCATABLE
);
206 if (relocated_sysgdbinit
&& stat (relocated_sysgdbinit
, &s
) == 0)
207 sysgdbinit
= relocated_sysgdbinit
;
209 xfree (relocated_sysgdbinit
);
212 homedir
= getenv ("HOME");
214 /* If the .gdbinit file in the current directory is the same as
215 the $HOME/.gdbinit file, it should not be sourced. homebuf
216 and cwdbuf are used in that purpose. Make sure that the stats
217 are zero in case one of them fails (this guarantees that they
218 won't match if either exists). */
220 memset (&homebuf
, 0, sizeof (struct stat
));
221 memset (&cwdbuf
, 0, sizeof (struct stat
));
225 homeinit
= xstrprintf ("%s/%s", homedir
, gdbinit
);
226 if (stat (homeinit
, &homebuf
) != 0)
233 if (stat (gdbinit
, &cwdbuf
) == 0)
236 || memcmp ((char *) &homebuf
, (char *) &cwdbuf
,
237 sizeof (struct stat
)))
244 *system_gdbinit
= sysgdbinit
;
245 *home_gdbinit
= homeinit
;
246 *local_gdbinit
= localinit
;
249 /* Call command_loop. If it happens to return, pass that through as a
250 non-zero return status. */
253 captured_command_loop (void *data
)
255 /* Top-level execution commands can be run on the background from
257 interpreter_async
= 1;
259 current_interp_command_loop ();
260 /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
261 would clean things up (restoring the cleanup chain) to the state
262 they were just prior to the call. Technically, this means that
263 the do_cleanups() below is redundant. Unfortunately, many FUNCs
264 are not that well behaved. do_cleanups should either be replaced
265 with a do_cleanups call (to cover the problem) or an assertion
266 check to detect bad FUNCs code. */
267 do_cleanups (all_cleanups ());
268 /* If the command_loop returned, normally (rather than threw an
269 error) we try to quit. If the quit is aborted, catch_errors()
270 which called this catch the signal and restart the command
272 quit_command (NULL
, instream
== stdin
);
276 /* Arguments of --command option and its counterpart. */
277 typedef struct cmdarg
{
278 /* Type of this option. */
280 /* Option type -x. */
283 /* Option type -ex. */
286 /* Option type -ix. */
289 /* Option type -iex. */
293 /* Value of this option - filename or the GDB command itself. String memory
294 is not owned by this structure despite it is 'const'. */
298 /* Define type VEC (cmdarg_s). */
299 DEF_VEC_O (cmdarg_s
);
302 captured_main (void *data
)
304 struct captured_main_args
*context
= data
;
305 int argc
= context
->argc
;
306 char **argv
= context
->argv
;
307 static int quiet
= 0;
308 static int set_args
= 0;
309 static int inhibit_home_gdbinit
= 0;
311 /* Pointers to various arguments from command line. */
313 char *execarg
= NULL
;
315 char *corearg
= NULL
;
316 char *pid_or_core_arg
= NULL
;
320 /* These are static so that we can take their address in an
322 static int print_help
;
323 static int print_version
;
325 /* Pointers to all arguments of --command option. */
326 VEC (cmdarg_s
) *cmdarg_vec
= NULL
;
327 struct cmdarg
*cmdarg_p
;
329 /* Indices of all arguments of --directory option. */
331 /* Allocated size. */
333 /* Number of elements used. */
336 /* gdb init files. */
337 char *system_gdbinit
;
343 struct objfile
*objfile
;
345 struct cleanup
*pre_stat_chain
;
348 /* Set this before calling make_command_stats_cleanup. */
349 lim_at_start
= (char *) sbrk (0);
352 pre_stat_chain
= make_command_stats_cleanup (0);
354 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
355 setlocale (LC_MESSAGES
, "");
357 #if defined (HAVE_SETLOCALE)
358 setlocale (LC_CTYPE
, "");
360 bindtextdomain (PACKAGE
, LOCALEDIR
);
361 textdomain (PACKAGE
);
365 make_cleanup (VEC_cleanup (cmdarg_s
), &cmdarg_vec
);
367 dirarg
= (char **) xmalloc (dirsize
* sizeof (*dirarg
));
371 saved_command_line
= (char *) xmalloc (saved_command_line_size
);
372 saved_command_line
[0] = '\0';
375 gdb_stdout
= stdio_fileopen (stdout
);
376 gdb_stderr
= stdio_fileopen (stderr
);
377 gdb_stdlog
= gdb_stderr
; /* for moment */
378 gdb_stdtarg
= gdb_stderr
; /* for moment */
379 gdb_stdin
= stdio_fileopen (stdin
);
380 gdb_stdtargerr
= gdb_stderr
; /* for moment */
381 gdb_stdtargin
= gdb_stdin
; /* for moment */
384 /* On Windows, argv[0] is not necessarily set to absolute form when
385 GDB is found along PATH, without which relocation doesn't work. */
386 gdb_program_name
= windows_get_absolute_argv0 (argv
[0]);
388 gdb_program_name
= xstrdup (argv
[0]);
391 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
392 /* Don't use *_filtered or warning() (which relies on
393 current_target) until after initialize_all_files(). */
394 fprintf_unfiltered (gdb_stderr
,
395 _("%s: warning: error finding "
396 "working directory: %s\n"),
397 argv
[0], safe_strerror (errno
));
399 current_directory
= gdb_dirbuf
;
401 /* Set the sysroot path. */
402 gdb_sysroot
= relocate_gdb_directory (TARGET_SYSTEM_ROOT
,
403 TARGET_SYSTEM_ROOT_RELOCATABLE
);
405 debug_file_directory
= relocate_gdb_directory (DEBUGDIR
,
406 DEBUGDIR_RELOCATABLE
);
408 gdb_datadir
= relocate_gdb_directory (GDB_DATADIR
,
409 GDB_DATADIR_RELOCATABLE
);
411 #ifdef WITH_PYTHON_PATH
413 /* For later use in helping Python find itself. */
414 char *tmp
= concat (WITH_PYTHON_PATH
, SLASH_STRING
, "lib", NULL
);
416 python_libdir
= relocate_gdb_directory (tmp
, PYTHON_PATH_RELOCATABLE
);
422 add_substitute_path_rule (RELOC_SRCDIR
,
423 make_relative_prefix (gdb_program_name
, BINDIR
,
427 /* There will always be an interpreter. Either the one passed into
428 this captured main, or one specified by the user at start up, or
429 the console. Initialize the interpreter to the one requested by
431 interpreter_p
= xstrdup (context
->interpreter_p
);
433 /* Parse arguments and options. */
436 /* When var field is 0, use flag field to record the equivalent
437 short option (or arbitrary numbers starting at 10 for those
438 with no equivalent). */
450 static struct option long_options
[] =
452 {"tui", no_argument
, 0, OPT_TUI
},
453 {"xdb", no_argument
, &xdb_commands
, 1},
454 {"dbx", no_argument
, &dbx_commands
, 1},
455 {"readnow", no_argument
, &readnow_symbol_files
, 1},
456 {"r", no_argument
, &readnow_symbol_files
, 1},
457 {"quiet", no_argument
, &quiet
, 1},
458 {"q", no_argument
, &quiet
, 1},
459 {"silent", no_argument
, &quiet
, 1},
460 {"nh", no_argument
, &inhibit_home_gdbinit
, 1},
461 {"nx", no_argument
, &inhibit_gdbinit
, 1},
462 {"n", no_argument
, &inhibit_gdbinit
, 1},
463 {"batch-silent", no_argument
, 0, 'B'},
464 {"batch", no_argument
, &batch_flag
, 1},
466 /* This is a synonym for "--annotate=1". --annotate is now
467 preferred, but keep this here for a long time because people
468 will be running emacses which use --fullname. */
469 {"fullname", no_argument
, 0, 'f'},
470 {"f", no_argument
, 0, 'f'},
472 {"annotate", required_argument
, 0, OPT_ANNOTATE
},
473 {"help", no_argument
, &print_help
, 1},
474 {"se", required_argument
, 0, OPT_SE
},
475 {"symbols", required_argument
, 0, 's'},
476 {"s", required_argument
, 0, 's'},
477 {"exec", required_argument
, 0, 'e'},
478 {"e", required_argument
, 0, 'e'},
479 {"core", required_argument
, 0, 'c'},
480 {"c", required_argument
, 0, 'c'},
481 {"pid", required_argument
, 0, 'p'},
482 {"p", required_argument
, 0, 'p'},
483 {"command", required_argument
, 0, 'x'},
484 {"eval-command", required_argument
, 0, 'X'},
485 {"version", no_argument
, &print_version
, 1},
486 {"x", required_argument
, 0, 'x'},
487 {"ex", required_argument
, 0, 'X'},
488 {"init-command", required_argument
, 0, OPT_IX
},
489 {"init-eval-command", required_argument
, 0, OPT_IEX
},
490 {"ix", required_argument
, 0, OPT_IX
},
491 {"iex", required_argument
, 0, OPT_IEX
},
493 {"tclcommand", required_argument
, 0, 'z'},
494 {"enable-external-editor", no_argument
, 0, 'y'},
495 {"editor-command", required_argument
, 0, 'w'},
497 {"ui", required_argument
, 0, 'i'},
498 {"interpreter", required_argument
, 0, 'i'},
499 {"i", required_argument
, 0, 'i'},
500 {"directory", required_argument
, 0, 'd'},
501 {"d", required_argument
, 0, 'd'},
502 {"data-directory", required_argument
, 0, 'D'},
503 {"cd", required_argument
, 0, OPT_CD
},
504 {"tty", required_argument
, 0, 't'},
505 {"baud", required_argument
, 0, 'b'},
506 {"b", required_argument
, 0, 'b'},
507 {"nw", no_argument
, NULL
, OPT_NOWINDOWS
},
508 {"nowindows", no_argument
, NULL
, OPT_NOWINDOWS
},
509 {"w", no_argument
, NULL
, OPT_WINDOWS
},
510 {"windows", no_argument
, NULL
, OPT_WINDOWS
},
511 {"statistics", no_argument
, 0, OPT_STATISTICS
},
512 {"write", no_argument
, &write_files
, 1},
513 {"args", no_argument
, &set_args
, 1},
514 {"l", required_argument
, 0, 'l'},
515 {"return-child-result", no_argument
, &return_child_result
, 1},
516 {0, no_argument
, 0, 0}
523 c
= getopt_long_only (argc
, argv
, "",
524 long_options
, &option_index
);
525 if (c
== EOF
|| set_args
)
528 /* Long option that takes an argument. */
529 if (c
== 0 && long_options
[option_index
].flag
== 0)
530 c
= long_options
[option_index
].val
;
535 /* Long option that just sets a flag. */
545 /* FIXME: what if the syntax is wrong (e.g. not digits)? */
546 annotation_level
= atoi (optarg
);
549 /* Enable the display of both time and space usage. */
550 set_per_command_time (1);
551 set_per_command_space (1);
554 /* --tui is equivalent to -i=tui. */
556 xfree (interpreter_p
);
557 interpreter_p
= xstrdup (INTERP_TUI
);
559 fprintf_unfiltered (gdb_stderr
,
560 _("%s: TUI mode is not supported\n"),
566 /* FIXME: cagney/2003-03-01: Not sure if this option is
567 actually useful, and if it is, what it should do. */
569 /* --windows is equivalent to -i=insight. */
570 xfree (interpreter_p
);
571 interpreter_p
= xstrdup (INTERP_INSIGHT
);
576 /* -nw is equivalent to -i=console. */
577 xfree (interpreter_p
);
578 interpreter_p
= xstrdup (INTERP_CONSOLE
);
582 annotation_level
= 1;
583 /* We have probably been invoked from emacs. Disable
601 struct cmdarg cmdarg
= { CMDARG_FILE
, optarg
};
603 VEC_safe_push (cmdarg_s
, cmdarg_vec
, &cmdarg
);
608 struct cmdarg cmdarg
= { CMDARG_COMMAND
, optarg
};
610 VEC_safe_push (cmdarg_s
, cmdarg_vec
, &cmdarg
);
615 struct cmdarg cmdarg
= { CMDARG_INIT_FILE
, optarg
};
617 VEC_safe_push (cmdarg_s
, cmdarg_vec
, &cmdarg
);
622 struct cmdarg cmdarg
= { CMDARG_INIT_COMMAND
, optarg
};
624 VEC_safe_push (cmdarg_s
, cmdarg_vec
, &cmdarg
);
628 batch_flag
= batch_silent
= 1;
629 gdb_stdout
= ui_file_new();
633 gdb_datadir
= xstrdup (optarg
);
634 gdb_datadir_provided
= 1;
639 extern int gdbtk_test (char *);
641 if (!gdbtk_test (optarg
))
643 fprintf_unfiltered (gdb_stderr
,
644 _("%s: unable to load "
645 "tclcommand file \"%s\""),
652 /* Backwards compatibility only. */
656 /* Set the external editor commands when gdb is farming out files
657 to be edited by another program. */
658 extern char *external_editor_command
;
660 external_editor_command
= xstrdup (optarg
);
665 xfree (interpreter_p
);
666 interpreter_p
= xstrdup (optarg
);
669 dirarg
[ndir
++] = optarg
;
673 dirarg
= (char **) xrealloc ((char *) dirarg
,
674 dirsize
* sizeof (*dirarg
));
688 i
= strtol (optarg
, &p
, 0);
689 if (i
== 0 && p
== optarg
)
691 /* Don't use *_filtered or warning() (which relies on
692 current_target) until after initialize_all_files(). */
696 _("warning: could not set baud rate to `%s'.\n"), optarg
);
706 i
= strtol (optarg
, &p
, 0);
707 if (i
== 0 && p
== optarg
)
709 /* Don't use *_filtered or warning() (which relies on
710 current_target) until after initialize_all_files(). */
712 fprintf_unfiltered (gdb_stderr
,
713 _("warning: could not set "
714 "timeout limit to `%s'.\n"), optarg
);
721 fprintf_unfiltered (gdb_stderr
,
722 _("Use `%s --help' for a "
723 "complete list of options.\n"),
729 /* If --help or --version, disable window interface. */
730 if (print_help
|| print_version
)
739 /* Initialize all files. Give the interpreter a chance to take
740 control of the console via the deprecated_init_ui_hook (). */
741 gdb_init (gdb_program_name
);
743 /* Now that gdb_init has created the initial inferior, we're in
744 position to set args for that inferior. */
747 /* The remaining options are the command-line options for the
748 inferior. The first one is the sym/exec file, and the rest
752 fprintf_unfiltered (gdb_stderr
,
753 _("%s: `--args' specified but "
754 "no program specified\n"),
758 symarg
= argv
[optind
];
759 execarg
= argv
[optind
];
761 set_inferior_args_vector (argc
- optind
, &argv
[optind
]);
765 /* OK, that's all the options. */
767 /* The first argument, if specified, is the name of the
771 symarg
= argv
[optind
];
772 execarg
= argv
[optind
];
776 /* If the user hasn't already specified a PID or the name of a
777 core file, then a second optional argument is allowed. If
778 present, this argument should be interpreted as either a
779 PID or a core file, whichever works. */
780 if (pidarg
== NULL
&& corearg
== NULL
&& optind
< argc
)
782 pid_or_core_arg
= argv
[optind
];
786 /* Any argument left on the command line is unexpected and
787 will be ignored. Inform the user. */
789 fprintf_unfiltered (gdb_stderr
,
790 _("Excess command line "
791 "arguments ignored. (%s%s)\n"),
793 (optind
== argc
- 1) ? "" : " ...");
796 /* Lookup gdbinit files. Note that the gdbinit file name may be
797 overriden during file initialization, so get_init_files should be
798 called after gdb_init. */
799 get_init_files (&system_gdbinit
, &home_gdbinit
, &local_gdbinit
);
801 /* Do these (and anything which might call wrap_here or *_filtered)
802 after initialize_all_files() but before the interpreter has been
803 installed. Otherwize the help/version messages will be eaten by
804 the interpreter's output handler. */
808 print_gdb_version (gdb_stdout
);
810 printf_filtered ("\n");
816 print_gdb_help (gdb_stdout
);
817 fputs_unfiltered ("\n", gdb_stdout
);
821 /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets
822 GDB retain the old MI1 interpreter startup behavior. Output the
823 copyright message before the interpreter is installed. That way
824 it isn't encapsulated in MI output. */
825 if (!quiet
&& strcmp (interpreter_p
, INTERP_MI1
) == 0)
827 /* Print all the junk at the top, with trailing "..." if we are
828 about to read a symbol file (possibly slowly). */
829 print_gdb_version (gdb_stdout
);
831 printf_filtered ("..");
833 printf_filtered ("\n");
834 gdb_flush (gdb_stdout
); /* Force to screen during slow
838 /* Install the default UI. All the interpreters should have had a
839 look at things by now. Initialize the default interpreter. */
843 struct interp
*interp
= interp_lookup (interpreter_p
);
846 error (_("Interpreter `%s' unrecognized"), interpreter_p
);
848 if (!interp_set (interp
, 1))
850 fprintf_unfiltered (gdb_stderr
,
851 "Interpreter `%s' failed to initialize.\n",
857 /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets
858 GDB retain the old MI1 interpreter startup behavior. Output the
859 copyright message after the interpreter is installed when it is
860 any sane interpreter. */
861 if (!quiet
&& !current_interp_named_p (INTERP_MI1
))
863 /* Print all the junk at the top, with trailing "..." if we are
864 about to read a symbol file (possibly slowly). */
865 print_gdb_version (gdb_stdout
);
867 printf_filtered ("..");
869 printf_filtered ("\n");
870 gdb_flush (gdb_stdout
); /* Force to screen during slow
874 /* Set off error and warning messages with a blank line. */
875 error_pre_print
= "\n";
876 quit_pre_print
= error_pre_print
;
877 warning_pre_print
= _("\nwarning: ");
879 /* Read and execute the system-wide gdbinit file, if it exists.
880 This is done *before* all the command line arguments are
881 processed; it sets global parameters, which are independent of
882 what file you are debugging or what directory you are in. */
883 if (system_gdbinit
&& !inhibit_gdbinit
)
884 catch_command_errors (source_script
, system_gdbinit
, 0, RETURN_MASK_ALL
);
886 /* Read and execute $HOME/.gdbinit file, if it exists. This is done
887 *before* all the command line arguments are processed; it sets
888 global parameters, which are independent of what file you are
889 debugging or what directory you are in. */
891 if (home_gdbinit
&& !inhibit_gdbinit
&& !inhibit_home_gdbinit
)
892 catch_command_errors (source_script
, home_gdbinit
, 0, RETURN_MASK_ALL
);
894 /* Process '-ix' and '-iex' options early. */
895 for (i
= 0; VEC_iterate (cmdarg_s
, cmdarg_vec
, i
, cmdarg_p
); i
++)
896 switch (cmdarg_p
->type
)
898 case CMDARG_INIT_FILE
:
899 catch_command_errors (source_script
, cmdarg_p
->string
,
900 !batch_flag
, RETURN_MASK_ALL
);
902 case CMDARG_INIT_COMMAND
:
903 catch_command_errors (execute_command
, cmdarg_p
->string
,
904 !batch_flag
, RETURN_MASK_ALL
);
908 /* Now perform all the actions indicated by the arguments. */
911 catch_command_errors (cd_command
, cdarg
, 0, RETURN_MASK_ALL
);
914 for (i
= 0; i
< ndir
; i
++)
915 catch_command_errors (directory_switch
, dirarg
[i
], 0, RETURN_MASK_ALL
);
918 /* Skip auto-loading section-specified scripts until we've sourced
919 local_gdbinit (which is often used to augment the source search
921 save_auto_load
= global_auto_load
;
922 global_auto_load
= 0;
926 && strcmp (execarg
, symarg
) == 0)
928 /* The exec file and the symbol-file are the same. If we can't
929 open it, better only print one error message.
930 catch_command_errors returns non-zero on success! */
931 if (catch_command_errors (exec_file_attach
, execarg
,
932 !batch_flag
, RETURN_MASK_ALL
))
933 catch_command_errors (symbol_file_add_main
, symarg
,
934 !batch_flag
, RETURN_MASK_ALL
);
939 catch_command_errors (exec_file_attach
, execarg
,
940 !batch_flag
, RETURN_MASK_ALL
);
942 catch_command_errors (symbol_file_add_main
, symarg
,
943 !batch_flag
, RETURN_MASK_ALL
);
946 if (corearg
&& pidarg
)
947 error (_("Can't attach to process and specify "
948 "a core file at the same time."));
951 catch_command_errors (core_file_command
, corearg
,
952 !batch_flag
, RETURN_MASK_ALL
);
953 else if (pidarg
!= NULL
)
954 catch_command_errors (attach_command
, pidarg
,
955 !batch_flag
, RETURN_MASK_ALL
);
956 else if (pid_or_core_arg
)
958 /* The user specified 'gdb program pid' or gdb program core'.
959 If pid_or_core_arg's first character is a digit, try attach
960 first and then corefile. Otherwise try just corefile. */
962 if (isdigit (pid_or_core_arg
[0]))
964 if (catch_command_errors (attach_command
, pid_or_core_arg
,
965 !batch_flag
, RETURN_MASK_ALL
) == 0)
966 catch_command_errors (core_file_command
, pid_or_core_arg
,
967 !batch_flag
, RETURN_MASK_ALL
);
969 else /* Can't be a pid, better be a corefile. */
970 catch_command_errors (core_file_command
, pid_or_core_arg
,
971 !batch_flag
, RETURN_MASK_ALL
);
975 set_inferior_io_terminal (ttyarg
);
977 /* Error messages should no longer be distinguished with extra output. */
978 error_pre_print
= NULL
;
979 quit_pre_print
= NULL
;
980 warning_pre_print
= _("warning: ");
982 /* Read the .gdbinit file in the current directory, *if* it isn't
983 the same as the $HOME/.gdbinit file (it should exist, also). */
986 auto_load_local_gdbinit_pathname
= gdb_realpath (local_gdbinit
);
988 if (!inhibit_gdbinit
&& auto_load_local_gdbinit
989 && file_is_auto_load_safe (local_gdbinit
,
990 _("auto-load: Loading .gdbinit "
994 auto_load_local_gdbinit_loaded
= 1;
996 catch_command_errors (source_script
, local_gdbinit
, 0,
1001 /* Now that all .gdbinit's have been read and all -d options have been
1002 processed, we can read any scripts mentioned in SYMARG.
1003 We wait until now because it is common to add to the source search
1004 path in local_gdbinit. */
1005 global_auto_load
= save_auto_load
;
1006 ALL_OBJFILES (objfile
)
1007 load_auto_scripts_for_objfile (objfile
);
1009 /* Process '-x' and '-ex' options. */
1010 for (i
= 0; VEC_iterate (cmdarg_s
, cmdarg_vec
, i
, cmdarg_p
); i
++)
1011 switch (cmdarg_p
->type
)
1014 catch_command_errors (source_script
, cmdarg_p
->string
,
1015 !batch_flag
, RETURN_MASK_ALL
);
1017 case CMDARG_COMMAND
:
1018 catch_command_errors (execute_command
, cmdarg_p
->string
,
1019 !batch_flag
, RETURN_MASK_ALL
);
1023 /* Read in the old history after all the command files have been
1029 /* We have hit the end of the batch file. */
1030 quit_force (NULL
, 0);
1033 /* Show time and/or space usage. */
1034 do_cleanups (pre_stat_chain
);
1036 /* NOTE: cagney/1999-11-07: There is probably no reason for not
1037 moving this loop and the code found in captured_command_loop()
1038 into the command_loop() proper. The main thing holding back that
1039 change - SET_TOP_LEVEL() - has been eliminated. */
1042 catch_errors (captured_command_loop
, 0, "", RETURN_MASK_ALL
);
1044 /* No exit -- exit is through quit_command. */
1048 gdb_main (struct captured_main_args
*args
)
1050 use_windows
= args
->use_windows
;
1051 catch_errors (captured_main
, args
, "", RETURN_MASK_ALL
);
1052 /* The only way to end up here is by an error (normal exit is
1053 handled by quit_force()), hence always return an error status. */
1058 /* Don't use *_filtered for printing help. We don't want to prompt
1059 for continue no matter how small the screen or how much we're going
1063 print_gdb_help (struct ui_file
*stream
)
1065 char *system_gdbinit
;
1067 char *local_gdbinit
;
1069 get_init_files (&system_gdbinit
, &home_gdbinit
, &local_gdbinit
);
1071 fputs_unfiltered (_("\
1072 This is the GNU debugger. Usage:\n\n\
1073 gdb [options] [executable-file [core-file or process-id]]\n\
1074 gdb [options] --args executable-file [inferior-arguments ...]\n\n\
1077 fputs_unfiltered (_("\
1078 --args Arguments after executable-file are passed to inferior\n\
1080 fputs_unfiltered (_("\
1081 -b BAUDRATE Set serial port baud rate used for remote debugging.\n\
1082 --batch Exit after processing options.\n\
1083 --batch-silent As for --batch, but suppress all gdb stdout output.\n\
1084 --return-child-result\n\
1085 GDB exit code will be the child's exit code.\n\
1086 --cd=DIR Change current directory to DIR.\n\
1087 --command=FILE, -x Execute GDB commands from FILE.\n\
1088 --eval-command=COMMAND, -ex\n\
1089 Execute a single GDB command.\n\
1090 May be used multiple times and in conjunction\n\
1092 --init-command=FILE, -ix Like -x but execute it before loading inferior.\n\
1093 --init-eval-command=COMMAND, -iex Like -ex but before loading inferior.\n\
1094 --core=COREFILE Analyze the core dump COREFILE.\n\
1095 --pid=PID Attach to running process PID.\n\
1097 fputs_unfiltered (_("\
1098 --dbx DBX compatibility mode.\n\
1099 --directory=DIR Search for source files in DIR.\n\
1100 --exec=EXECFILE Use EXECFILE as the executable.\n\
1101 --fullname Output information used by emacs-GDB interface.\n\
1102 --help Print this message.\n\
1104 fputs_unfiltered (_("\
1105 --interpreter=INTERP\n\
1106 Select a specific interpreter / user interface\n\
1108 fputs_unfiltered (_("\
1109 -l TIMEOUT Set timeout in seconds for remote debugging.\n\
1110 --nw Do not use a window interface.\n\
1111 --nx Do not read any "), stream
);
1112 fputs_unfiltered (gdbinit
, stream
);
1113 fputs_unfiltered (_(" files.\n\
1114 --nh Do not read "), stream
);
1115 fputs_unfiltered (gdbinit
, stream
);
1116 fputs_unfiltered (_(" file from home directory.\n\
1117 --quiet Do not print version number on startup.\n\
1118 --readnow Fully read symbol files on first access.\n\
1120 fputs_unfiltered (_("\
1121 --se=FILE Use FILE as symbol file and executable file.\n\
1122 --symbols=SYMFILE Read symbols from SYMFILE.\n\
1123 --tty=TTY Use TTY for input/output by the program being debugged.\n\
1126 fputs_unfiltered (_("\
1127 --tui Use a terminal user interface.\n\
1130 fputs_unfiltered (_("\
1131 --version Print version information and then exit.\n\
1132 -w Use a window interface.\n\
1133 --write Set writing into executable and core files.\n\
1134 --xdb XDB compatibility mode.\n\
1136 fputs_unfiltered (_("\n\
1137 At startup, GDB reads the following init files and executes their commands:\n\
1140 fprintf_unfiltered (stream
, _("\
1141 * system-wide init file: %s\n\
1142 "), system_gdbinit
);
1144 fprintf_unfiltered (stream
, _("\
1145 * user-specific init file: %s\n\
1148 fprintf_unfiltered (stream
, _("\
1149 * local init file (see also 'set auto-load local-gdbinit'): ./%s\n\
1151 fputs_unfiltered (_("\n\
1152 For more information, type \"help\" from within GDB, or consult the\n\
1153 GDB manual (available as on-line info or a printed manual).\n\
1155 if (REPORT_BUGS_TO
[0] && stream
== gdb_stdout
)
1156 fprintf_unfiltered (stream
, _("\
1157 Report bugs to \"%s\".\n\
1158 "), REPORT_BUGS_TO
);