* main.c: Marked all strings with _().
[deliverable/binutils-gdb.git] / gdb / main.c
CommitLineData
c906108c 1/* Top level stuff for GDB, the GNU debugger.
b6ba6518 2 Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
00546b04
MS
3 1996, 1997, 1998, 1999, 2000, 2001, 2002
4 Free Software Foundation, Inc.
c906108c 5
c5aa993b 6 This file is part of GDB.
c906108c 7
c5aa993b
JM
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
c906108c 12
c5aa993b
JM
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
c906108c 17
c5aa993b
JM
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
c906108c
SS
22
23#include "defs.h"
c906108c
SS
24#include "top.h"
25#include "target.h"
26#include "inferior.h"
1adeb98a
FN
27#include "symfile.h"
28#include "gdbcore.h"
c906108c
SS
29
30#include "getopt.h"
31
32#include <sys/types.h>
33#include "gdb_stat.h"
34#include <ctype.h>
35
36#include "gdb_string.h"
9e0b60a8 37#include "event-loop.h"
8b93c638 38#include "ui-out.h"
6457bd47 39
c906108c
SS
40/* If nonzero, display time usage both at startup and for each command. */
41
42int display_time;
43
44/* If nonzero, display space usage both at startup and for each command. */
45
46int display_space;
47
cd0fc7c3 48/* Whether this is the async version or not. The async version is
c5aa993b
JM
49 invoked on the command line with the -nw --async options. In this
50 version, the usual command_loop is substituted by and event loop which
51 processes UI events asynchronously. */
6426a772 52int event_loop_p = 1;
cd0fc7c3 53
fb40c209
AC
54/* Has an interpreter been specified and if so, which. */
55char *interpreter_p;
fb40c209 56
c906108c
SS
57/* Whether this is the command line version or not */
58int tui_version = 0;
59
60/* Whether xdb commands will be handled */
61int xdb_commands = 0;
62
63/* Whether dbx commands will be handled */
64int dbx_commands = 0;
65
d9fcf2fb
JM
66struct ui_file *gdb_stdout;
67struct ui_file *gdb_stderr;
68struct ui_file *gdb_stdlog;
69struct ui_file *gdb_stdtarg;
c906108c 70
2acceee2
JM
71/* Used to initialize error() - defined in utils.c */
72
73extern void error_init (void);
74
c906108c
SS
75/* Whether to enable writing into executable and core files */
76extern int write_files;
77
d9fcf2fb 78static void print_gdb_help (struct ui_file *);
c906108c
SS
79
80/* These two are used to set the external editor commands when gdb is farming
81 out files to be edited by another program. */
82
c5aa993b 83extern char *external_editor_command;
c906108c 84
11cf8741
JM
85/* Call command_loop. If it happens to return, pass that through as a
86 non-zero return status. */
87
88static int
89captured_command_loop (void *data)
c906108c 90{
11cf8741
JM
91 if (command_loop_hook == NULL)
92 command_loop ();
93 else
94 command_loop_hook ();
95 /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
96 would clean things up (restoring the cleanup chain) to the state
97 they were just prior to the call. Technically, this means that
e26cc349 98 the do_cleanups() below is redundant. Unfortunately, many FUNCs
11cf8741
JM
99 are not that well behaved. do_cleanups should either be replaced
100 with a do_cleanups call (to cover the problem) or an assertion
101 check to detect bad FUNCs code. */
102 do_cleanups (ALL_CLEANUPS);
103 /* If the command_loop returned, normally (rather than threw an
104 error) we try to quit. If the quit is aborted, catch_errors()
105 which called this catch the signal and restart the command
106 loop. */
107 quit_command (NULL, instream == stdin);
108 return 1;
109}
110
111struct captured_main_args
112 {
113 int argc;
114 char **argv;
115 };
116
117static int
118captured_main (void *data)
119{
120 struct captured_main_args *context = data;
121 int argc = context->argc;
122 char **argv = context->argv;
c906108c
SS
123 int count;
124 static int quiet = 0;
125 static int batch = 0;
552c04a7 126 static int set_args = 0;
c906108c
SS
127
128 /* Pointers to various arguments from command line. */
129 char *symarg = NULL;
130 char *execarg = NULL;
131 char *corearg = NULL;
132 char *cdarg = NULL;
133 char *ttyarg = NULL;
134
135 /* These are static so that we can take their address in an initializer. */
136 static int print_help;
137 static int print_version;
138
139 /* Pointers to all arguments of --command option. */
140 char **cmdarg;
141 /* Allocated size of cmdarg. */
142 int cmdsize;
143 /* Number of elements of cmdarg used. */
144 int ncmd;
145
146 /* Indices of all arguments of --directory option. */
147 char **dirarg;
148 /* Allocated size. */
149 int dirsize;
150 /* Number of elements used. */
151 int ndir;
c5aa993b 152
c906108c
SS
153 struct stat homebuf, cwdbuf;
154 char *homedir, *homeinit;
155
156 register int i;
157
158 long time_at_startup = get_run_time ();
159
0fbb3da7
TT
160#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
161 setlocale (LC_MESSAGES, "");
162#endif
163#if defined (HAVE_SETLOCALE)
164 setlocale (LC_CTYPE, "");
165#endif
166 bindtextdomain (PACKAGE, LOCALEDIR);
167 textdomain (PACKAGE);
168
c906108c
SS
169 START_PROGRESS (argv[0], 0);
170
171#ifdef MPW
172 /* Do all Mac-specific setup. */
173 mac_init ();
174#endif /* MPW */
175
176 /* This needs to happen before the first use of malloc. */
177 init_malloc ((PTR) NULL);
178
179#if defined (ALIGN_STACK_ON_STARTUP)
180 i = (int) &count & 0x3;
181 if (i != 0)
182 alloca (4 - i);
183#endif
184
c906108c
SS
185 cmdsize = 1;
186 cmdarg = (char **) xmalloc (cmdsize * sizeof (*cmdarg));
187 ncmd = 0;
188 dirsize = 1;
189 dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg));
190 ndir = 0;
191
192 quit_flag = 0;
193 line = (char *) xmalloc (linesize);
194 line[0] = '\0'; /* Terminate saved (now empty) cmd line */
195 instream = stdin;
196
197 getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
198 current_directory = gdb_dirbuf;
199
da59e081
JM
200 gdb_stdout = stdio_fileopen (stdout);
201 gdb_stderr = stdio_fileopen (stderr);
202 gdb_stdlog = gdb_stderr; /* for moment */
203 gdb_stdtarg = gdb_stderr; /* for moment */
c906108c 204
2acceee2
JM
205 /* initialize error() */
206 error_init ();
207
c906108c
SS
208 /* Parse arguments and options. */
209 {
210 int c;
211 /* When var field is 0, use flag field to record the equivalent
212 short option (or arbitrary numbers starting at 10 for those
213 with no equivalent). */
214 static struct option long_options[] =
c5aa993b 215 {
6426a772
JM
216 {"async", no_argument, &event_loop_p, 1},
217 {"noasync", no_argument, &event_loop_p, 0},
c906108c 218#if defined(TUI)
c5aa993b 219 {"tui", no_argument, &tui_version, 1},
c906108c 220#endif
c5aa993b
JM
221 {"xdb", no_argument, &xdb_commands, 1},
222 {"dbx", no_argument, &dbx_commands, 1},
223 {"readnow", no_argument, &readnow_symbol_files, 1},
224 {"r", no_argument, &readnow_symbol_files, 1},
225 {"mapped", no_argument, &mapped_symbol_files, 1},
226 {"m", no_argument, &mapped_symbol_files, 1},
227 {"quiet", no_argument, &quiet, 1},
228 {"q", no_argument, &quiet, 1},
229 {"silent", no_argument, &quiet, 1},
230 {"nx", no_argument, &inhibit_gdbinit, 1},
231 {"n", no_argument, &inhibit_gdbinit, 1},
232 {"batch", no_argument, &batch, 1},
233 {"epoch", no_argument, &epoch_interface, 1},
234
235 /* This is a synonym for "--annotate=1". --annotate is now preferred,
236 but keep this here for a long time because people will be running
237 emacses which use --fullname. */
238 {"fullname", no_argument, 0, 'f'},
239 {"f", no_argument, 0, 'f'},
240
241 {"annotate", required_argument, 0, 12},
242 {"help", no_argument, &print_help, 1},
243 {"se", required_argument, 0, 10},
244 {"symbols", required_argument, 0, 's'},
245 {"s", required_argument, 0, 's'},
246 {"exec", required_argument, 0, 'e'},
247 {"e", required_argument, 0, 'e'},
248 {"core", required_argument, 0, 'c'},
249 {"c", required_argument, 0, 'c'},
00546b04
MS
250 {"pid", required_argument, 0, 'p'},
251 {"p", required_argument, 0, 'p'},
c5aa993b
JM
252 {"command", required_argument, 0, 'x'},
253 {"version", no_argument, &print_version, 1},
254 {"x", required_argument, 0, 'x'},
3fc11d3e
JM
255#ifdef GDBTK
256 {"tclcommand", required_argument, 0, 'z'},
257 {"enable-external-editor", no_argument, 0, 'y'},
258 {"editor-command", required_argument, 0, 'w'},
259#endif
8b93c638
JM
260 {"ui", required_argument, 0, 'i'},
261 {"interpreter", required_argument, 0, 'i'},
262 {"i", required_argument, 0, 'i'},
c5aa993b 263 {"directory", required_argument, 0, 'd'},
c4093a6a 264 {"d", required_argument, 0, 'd'},
c5aa993b
JM
265 {"cd", required_argument, 0, 11},
266 {"tty", required_argument, 0, 't'},
267 {"baud", required_argument, 0, 'b'},
268 {"b", required_argument, 0, 'b'},
269 {"nw", no_argument, &use_windows, 0},
270 {"nowindows", no_argument, &use_windows, 0},
271 {"w", no_argument, &use_windows, 1},
272 {"windows", no_argument, &use_windows, 1},
273 {"statistics", no_argument, 0, 13},
274 {"write", no_argument, &write_files, 1},
552c04a7 275 {"args", no_argument, &set_args, 1},
c906108c
SS
276/* Allow machine descriptions to add more options... */
277#ifdef ADDITIONAL_OPTIONS
c5aa993b 278 ADDITIONAL_OPTIONS
c906108c 279#endif
c5aa993b
JM
280 {0, no_argument, 0, 0}
281 };
c906108c
SS
282
283 while (1)
284 {
285 int option_index;
286
287 c = getopt_long_only (argc, argv, "",
288 long_options, &option_index);
552c04a7 289 if (c == EOF || set_args)
c906108c
SS
290 break;
291
292 /* Long option that takes an argument. */
293 if (c == 0 && long_options[option_index].flag == 0)
294 c = long_options[option_index].val;
295
296 switch (c)
297 {
298 case 0:
299 /* Long option that just sets a flag. */
300 break;
301 case 10:
302 symarg = optarg;
303 execarg = optarg;
304 break;
305 case 11:
306 cdarg = optarg;
307 break;
308 case 12:
309 /* FIXME: what if the syntax is wrong (e.g. not digits)? */
310 annotation_level = atoi (optarg);
311 break;
312 case 13:
313 /* Enable the display of both time and space usage. */
314 display_time = 1;
315 display_space = 1;
316 break;
317 case 'f':
318 annotation_level = 1;
319/* We have probably been invoked from emacs. Disable window interface. */
320 use_windows = 0;
321 break;
322 case 's':
323 symarg = optarg;
324 break;
325 case 'e':
326 execarg = optarg;
327 break;
328 case 'c':
329 corearg = optarg;
330 break;
00546b04
MS
331 case 'p':
332 /* "corearg" is shared by "--core" and "--pid" */
333 corearg = optarg;
334 break;
c906108c
SS
335 case 'x':
336 cmdarg[ncmd++] = optarg;
337 if (ncmd >= cmdsize)
338 {
339 cmdsize *= 2;
c5aa993b 340 cmdarg = (char **) xrealloc ((char *) cmdarg,
c906108c
SS
341 cmdsize * sizeof (*cmdarg));
342 }
343 break;
3fc11d3e
JM
344#ifdef GDBTK
345 case 'z':
346 {
a14ed312 347extern int gdbtk_test (char *);
3fc11d3e
JM
348 if (!gdbtk_test (optarg))
349 {
defc6f8c 350 fprintf_unfiltered (gdb_stderr, _("%s: unable to load tclcommand file \"%s\""),
3fc11d3e
JM
351 argv[0], optarg);
352 exit (1);
353 }
354 break;
355 }
356 case 'y':
78f49586
TT
357 /* Backwards compatibility only. */
358 break;
3fc11d3e
JM
359 case 'w':
360 {
3fc11d3e
JM
361 external_editor_command = xstrdup (optarg);
362 break;
363 }
364#endif /* GDBTK */
fb40c209
AC
365 case 'i':
366 interpreter_p = optarg;
367 break;
c906108c
SS
368 case 'd':
369 dirarg[ndir++] = optarg;
370 if (ndir >= dirsize)
371 {
372 dirsize *= 2;
c5aa993b 373 dirarg = (char **) xrealloc ((char *) dirarg,
c906108c
SS
374 dirsize * sizeof (*dirarg));
375 }
376 break;
377 case 't':
378 ttyarg = optarg;
379 break;
380 case 'q':
381 quiet = 1;
382 break;
383 case 'b':
384 {
385 int i;
386 char *p;
387
388 i = strtol (optarg, &p, 0);
389 if (i == 0 && p == optarg)
390
391 /* Don't use *_filtered or warning() (which relies on
c5aa993b 392 current_target) until after initialize_all_files(). */
c906108c
SS
393
394 fprintf_unfiltered
395 (gdb_stderr,
defc6f8c 396 _("warning: could not set baud rate to `%s'.\n"), optarg);
c906108c
SS
397 else
398 baud_rate = i;
399 }
400 case 'l':
401 {
402 int i;
403 char *p;
404
405 i = strtol (optarg, &p, 0);
406 if (i == 0 && p == optarg)
407
408 /* Don't use *_filtered or warning() (which relies on
c5aa993b 409 current_target) until after initialize_all_files(). */
c906108c
SS
410
411 fprintf_unfiltered
412 (gdb_stderr,
defc6f8c 413 _("warning: could not set timeout limit to `%s'.\n"), optarg);
c906108c
SS
414 else
415 remote_timeout = i;
416 }
417 break;
418
419#ifdef ADDITIONAL_OPTION_CASES
c5aa993b 420 ADDITIONAL_OPTION_CASES
c906108c
SS
421#endif
422 case '?':
423 fprintf_unfiltered (gdb_stderr,
defc6f8c 424 _("Use `%s --help' for a complete list of options.\n"),
c5aa993b 425 argv[0]);
c906108c
SS
426 exit (1);
427 }
428 }
429
430 /* If --help or --version, disable window interface. */
431 if (print_help || print_version)
432 {
433 use_windows = 0;
434#ifdef TUI
435 /* Disable the TUI as well. */
436 tui_version = 0;
437#endif
438 }
439
440#ifdef TUI
441 /* An explicit --tui flag overrides the default UI, which is the
442 window system. */
443 if (tui_version)
444 use_windows = 0;
c5aa993b 445#endif
c906108c 446
552c04a7
TT
447 if (set_args)
448 {
449 /* The remaining options are the command-line options for the
450 inferior. The first one is the sym/exec file, and the rest
451 are arguments. */
452 if (optind >= argc)
453 {
454 fprintf_unfiltered (gdb_stderr,
defc6f8c 455 _("%s: `--args' specified but no program specified\n"),
552c04a7
TT
456 argv[0]);
457 exit (1);
458 }
459 symarg = argv[optind];
460 execarg = argv[optind];
461 ++optind;
462 set_inferior_args_vector (argc - optind, &argv[optind]);
463 }
464 else
465 {
466 /* OK, that's all the options. The other arguments are filenames. */
467 count = 0;
468 for (; optind < argc; optind++)
469 switch (++count)
470 {
471 case 1:
472 symarg = argv[optind];
473 execarg = argv[optind];
474 break;
475 case 2:
00546b04
MS
476 /* The documentation says this can be a "ProcID" as well.
477 We will try it as both a corefile and a pid. */
552c04a7
TT
478 corearg = argv[optind];
479 break;
480 case 3:
481 fprintf_unfiltered (gdb_stderr,
defc6f8c 482 _("Excess command line arguments ignored. (%s%s)\n"),
552c04a7
TT
483 argv[optind], (optind == argc - 1) ? "" : " ...");
484 break;
485 }
486 }
c906108c
SS
487 if (batch)
488 quiet = 1;
489 }
490
0f71a2f6
JM
491 /* Initialize all files. Give the interpreter a chance to take
492 control of the console via the init_ui_hook()) */
c906108c
SS
493 gdb_init (argv[0]);
494
495 /* Do these (and anything which might call wrap_here or *_filtered)
496 after initialize_all_files. */
497 if (print_version)
498 {
499 print_gdb_version (gdb_stdout);
500 wrap_here ("");
501 printf_filtered ("\n");
502 exit (0);
503 }
504
505 if (print_help)
506 {
507 print_gdb_help (gdb_stdout);
508 fputs_unfiltered ("\n", gdb_stdout);
509 exit (0);
510 }
511
512 if (!quiet)
513 {
514 /* Print all the junk at the top, with trailing "..." if we are about
c5aa993b 515 to read a symbol file (possibly slowly). */
c906108c
SS
516 print_gdb_version (gdb_stdout);
517 if (symarg)
518 printf_filtered ("..");
c5aa993b
JM
519 wrap_here ("");
520 gdb_flush (gdb_stdout); /* Force to screen during slow operations */
c906108c
SS
521 }
522
523 error_pre_print = "\n\n";
524 quit_pre_print = error_pre_print;
525
526 /* We may get more than one warning, don't double space all of them... */
defc6f8c 527 warning_pre_print = _("\nwarning: ");
c906108c
SS
528
529 /* Read and execute $HOME/.gdbinit file, if it exists. This is done
530 *before* all the command line arguments are processed; it sets
531 global parameters, which are independent of what file you are
532 debugging or what directory you are in. */
c5aa993b 533 homedir = getenv ("HOME");
c906108c
SS
534 if (homedir)
535 {
536 homeinit = (char *) alloca (strlen (homedir) +
537 strlen (gdbinit) + 10);
538 strcpy (homeinit, homedir);
539 strcat (homeinit, "/");
540 strcat (homeinit, gdbinit);
541
542 if (!inhibit_gdbinit)
543 {
11cf8741 544 catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL);
c906108c 545 }
c906108c
SS
546
547 /* Do stats; no need to do them elsewhere since we'll only
c5aa993b
JM
548 need them if homedir is set. Make sure that they are
549 zero in case one of them fails (this guarantees that they
550 won't match if either exists). */
551
c906108c
SS
552 memset (&homebuf, 0, sizeof (struct stat));
553 memset (&cwdbuf, 0, sizeof (struct stat));
c5aa993b 554
c906108c 555 stat (homeinit, &homebuf);
c5aa993b
JM
556 stat (gdbinit, &cwdbuf); /* We'll only need this if
557 homedir was set. */
c906108c
SS
558 }
559
560 /* Now perform all the actions indicated by the arguments. */
561 if (cdarg != NULL)
562 {
11cf8741 563 catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL);
c906108c 564 }
c906108c
SS
565
566 for (i = 0; i < ndir; i++)
11cf8741 567 catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL);
b8c9b27d 568 xfree (dirarg);
c906108c
SS
569
570 if (execarg != NULL
571 && symarg != NULL
572 && STREQ (execarg, symarg))
573 {
11cf8741
JM
574 /* The exec file and the symbol-file are the same. If we can't
575 open it, better only print one error message.
576 catch_command_errors returns non-zero on success! */
1adeb98a
FN
577 if (catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL))
578 catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL);
c906108c
SS
579 }
580 else
581 {
582 if (execarg != NULL)
1adeb98a 583 catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL);
c906108c 584 if (symarg != NULL)
1adeb98a 585 catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL);
c906108c 586 }
c906108c
SS
587
588 /* After the symbol file has been read, print a newline to get us
589 beyond the copyright line... But errors should still set off
590 the error message with a (single) blank line. */
591 if (!quiet)
592 printf_filtered ("\n");
593 error_pre_print = "\n";
594 quit_pre_print = error_pre_print;
defc6f8c 595 warning_pre_print = _("\nwarning: ");
c906108c
SS
596
597 if (corearg != NULL)
598 {
00546b04
MS
599 /* corearg may be either a corefile or a pid.
600 If its first character is a digit, try attach first
601 and then corefile. Otherwise try corefile first. */
602
603 if (isdigit (corearg[0]))
11cf8741 604 {
00546b04
MS
605 if (catch_command_errors (attach_command, corearg,
606 !batch, RETURN_MASK_ALL) == 0)
607 catch_command_errors (core_file_command, corearg,
608 !batch, RETURN_MASK_ALL);
11cf8741 609 }
00546b04
MS
610 else /* Can't be a pid, better be a corefile. */
611 catch_command_errors (core_file_command, corearg,
612 !batch, RETURN_MASK_ALL);
c906108c 613 }
c906108c
SS
614
615 if (ttyarg != NULL)
11cf8741 616 catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL);
c906108c
SS
617
618#ifdef ADDITIONAL_OPTION_HANDLER
619 ADDITIONAL_OPTION_HANDLER;
620#endif
621
622 /* Error messages should no longer be distinguished with extra output. */
623 error_pre_print = NULL;
624 quit_pre_print = NULL;
defc6f8c 625 warning_pre_print = _("warning: ");
c906108c
SS
626
627 /* Read the .gdbinit file in the current directory, *if* it isn't
628 the same as the $HOME/.gdbinit file (it should exist, also). */
c5aa993b 629
c906108c
SS
630 if (!homedir
631 || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat)))
632 if (!inhibit_gdbinit)
633 {
11cf8741 634 catch_command_errors (source_command, gdbinit, 0, RETURN_MASK_ALL);
c906108c 635 }
c906108c
SS
636
637 for (i = 0; i < ncmd; i++)
638 {
11cf8741
JM
639#if 0
640 /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that
641 expanded into a call to setjmp(). */
642 if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */
c906108c 643 {
b83266a0
SS
644 /* NOTE: I am commenting this out, because it is not clear
645 where this feature is used. It is very old and
c5aa993b 646 undocumented. ezannoni: 1999-05-04 */
b83266a0 647#if 0
c906108c
SS
648 if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0')
649 read_command_file (stdin);
650 else
b83266a0 651#endif
c906108c
SS
652 source_command (cmdarg[i], !batch);
653 do_cleanups (ALL_CLEANUPS);
654 }
11cf8741
JM
655#endif
656 catch_command_errors (source_command, cmdarg[i], !batch, RETURN_MASK_ALL);
c906108c 657 }
b8c9b27d 658 xfree (cmdarg);
c906108c
SS
659
660 /* Read in the old history after all the command files have been read. */
c5aa993b 661 init_history ();
c906108c
SS
662
663 if (batch)
664 {
665 /* We have hit the end of the batch file. */
666 exit (0);
667 }
668
669 /* Do any host- or target-specific hacks. This is used for i960 targets
670 to force the user to set a nindy target and spec its parameters. */
671
672#ifdef BEFORE_MAIN_LOOP_HOOK
673 BEFORE_MAIN_LOOP_HOOK;
674#endif
675
676 END_PROGRESS (argv[0]);
677
678 /* Show time and/or space usage. */
679
680 if (display_time)
681 {
682 long init_time = get_run_time () - time_at_startup;
683
defc6f8c 684 printf_unfiltered (_("Startup time: %ld.%06ld\n"),
c906108c
SS
685 init_time / 1000000, init_time % 1000000);
686 }
687
688 if (display_space)
689 {
690#ifdef HAVE_SBRK
691 extern char **environ;
692 char *lim = (char *) sbrk (0);
693
defc6f8c 694 printf_unfiltered (_("Startup size: data size %ld\n"),
c906108c
SS
695 (long) (lim - (char *) &environ));
696#endif
697 }
698
11cf8741
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699#if 0
700 /* FIXME: cagney/1999-11-06: The original main loop was like: */
c906108c
SS
701 while (1)
702 {
703 if (!SET_TOP_LEVEL ())
704 {
c5aa993b 705 do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */
c906108c
SS
706 /* GUIs generally have their own command loop, mainloop, or whatever.
707 This is a good place to gain control because many error
708 conditions will end up here via longjmp(). */
709 if (command_loop_hook)
710 command_loop_hook ();
711 else
712 command_loop ();
c5aa993b 713 quit_command ((char *) 0, instream == stdin);
c906108c
SS
714 }
715 }
11cf8741
JM
716 /* NOTE: If the command_loop() returned normally, the loop would
717 attempt to exit by calling the function quit_command(). That
718 function would either call exit() or throw an error returning
719 control to SET_TOP_LEVEL. */
720 /* NOTE: The function do_cleanups() was called once each time round
721 the loop. The usefulness of the call isn't clear. If an error
722 was thrown, everything would have already been cleaned up. If
723 command_loop() returned normally and quit_command() was called,
724 either exit() or error() (again cleaning up) would be called. */
725#endif
726 /* NOTE: cagney/1999-11-07: There is probably no reason for not
727 moving this loop and the code found in captured_command_loop()
728 into the command_loop() proper. The main thing holding back that
729 change - SET_TOP_LEVEL() - has been eliminated. */
730 while (1)
731 {
732 catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL);
733 }
11cf8741
JM
734 /* No exit -- exit is through quit_command. */
735}
c906108c 736
11cf8741
JM
737int
738main (int argc, char **argv)
739{
11cf8741
JM
740 struct captured_main_args args;
741 args.argc = argc;
742 args.argv = argv;
743 catch_errors (captured_main, &args, "", RETURN_MASK_ALL);
744 return 0;
c906108c
SS
745}
746
11cf8741 747
c906108c
SS
748/* Don't use *_filtered for printing help. We don't want to prompt
749 for continue no matter how small the screen or how much we're going
750 to print. */
751
752static void
d9fcf2fb 753print_gdb_help (struct ui_file *stream)
c906108c 754{
defc6f8c 755 fputs_unfiltered (_("\
c906108c 756This is the GNU debugger. Usage:\n\n\
552c04a7
TT
757 gdb [options] [executable-file [core-file or process-id]]\n\
758 gdb [options] --args executable-file [inferior-arguments ...]\n\n\
c906108c 759Options:\n\n\
defc6f8c
TT
760"), stream);
761 fputs_unfiltered (_("\
552c04a7 762 --args Arguments after executable-file are passed to inferior\n\
defc6f8c
TT
763"), stream);
764 fputs_unfiltered (_("\
0f71a2f6 765 --[no]async Enable (disable) asynchronous version of CLI\n\
defc6f8c
TT
766"), stream);
767 fputs_unfiltered (_("\
c906108c
SS
768 -b BAUDRATE Set serial port baud rate used for remote debugging.\n\
769 --batch Exit after processing options.\n\
770 --cd=DIR Change current directory to DIR.\n\
771 --command=FILE Execute GDB commands from FILE.\n\
772 --core=COREFILE Analyze the core dump COREFILE.\n\
00546b04 773 --pid=PID Attach to running process PID.\n\
defc6f8c
TT
774"), stream);
775 fputs_unfiltered (_("\
c906108c
SS
776 --dbx DBX compatibility mode.\n\
777 --directory=DIR Search for source files in DIR.\n\
778 --epoch Output information used by epoch emacs-GDB interface.\n\
779 --exec=EXECFILE Use EXECFILE as the executable.\n\
780 --fullname Output information used by emacs-GDB interface.\n\
781 --help Print this message.\n\
defc6f8c
TT
782"), stream);
783 fputs_unfiltered (_("\
8b93c638
JM
784 --interpreter=INTERP\n\
785 Select a specific interpreter / user interface\n\
defc6f8c
TT
786"), stream);
787 fputs_unfiltered (_("\
c906108c
SS
788 --mapped Use mapped symbol files if supported on this system.\n\
789 --nw Do not use a window interface.\n\
defc6f8c 790 --nx Do not read "), stream);
96baa820 791 fputs_unfiltered (gdbinit, stream);
defc6f8c 792 fputs_unfiltered (_(" file.\n\
c906108c
SS
793 --quiet Do not print version number on startup.\n\
794 --readnow Fully read symbol files on first access.\n\
defc6f8c
TT
795"), stream);
796 fputs_unfiltered (_("\
c906108c
SS
797 --se=FILE Use FILE as symbol file and executable file.\n\
798 --symbols=SYMFILE Read symbols from SYMFILE.\n\
799 --tty=TTY Use TTY for input/output by the program being debugged.\n\
defc6f8c 800"), stream);
c906108c 801#if defined(TUI)
defc6f8c 802 fputs_unfiltered (_("\
c906108c 803 --tui Use a terminal user interface.\n\
defc6f8c 804"), stream);
c906108c 805#endif
defc6f8c 806 fputs_unfiltered (_("\
c906108c
SS
807 --version Print version information and then exit.\n\
808 -w Use a window interface.\n\
809 --write Set writing into executable and core files.\n\
810 --xdb XDB compatibility mode.\n\
defc6f8c 811"), stream);
c906108c 812#ifdef ADDITIONAL_OPTION_HELP
c5aa993b 813 fputs_unfiltered (ADDITIONAL_OPTION_HELP, stream);
c906108c 814#endif
defc6f8c 815 fputs_unfiltered (_("\n\
c906108c
SS
816For more information, type \"help\" from within GDB, or consult the\n\
817GDB manual (available as on-line info or a printed manual).\n\
2df3850c 818Report bugs to \"bug-gdb@gnu.org\".\
defc6f8c 819"), stream);
c906108c 820}
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