*** empty log message ***
[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,
030292b7 3 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
00546b04 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
f15ab4a7
AC
40#include "main.h"
41
c906108c
SS
42/* If nonzero, display time usage both at startup and for each command. */
43
44int display_time;
45
46/* If nonzero, display space usage both at startup and for each command. */
47
48int display_space;
49
cd0fc7c3 50/* Whether this is the async version or not. The async version is
c5aa993b
JM
51 invoked on the command line with the -nw --async options. In this
52 version, the usual command_loop is substituted by and event loop which
53 processes UI events asynchronously. */
6426a772 54int event_loop_p = 1;
cd0fc7c3 55
fb40c209
AC
56/* Has an interpreter been specified and if so, which. */
57char *interpreter_p;
fb40c209 58
c906108c
SS
59/* Whether this is the command line version or not */
60int tui_version = 0;
61
62/* Whether xdb commands will be handled */
63int xdb_commands = 0;
64
65/* Whether dbx commands will be handled */
66int dbx_commands = 0;
67
030292b7
DJ
68/* System root path, used to find libraries etc. */
69char *gdb_sysroot = 0;
70
d9fcf2fb
JM
71struct ui_file *gdb_stdout;
72struct ui_file *gdb_stderr;
73struct ui_file *gdb_stdlog;
74struct ui_file *gdb_stdtarg;
c906108c 75
2acceee2
JM
76/* Used to initialize error() - defined in utils.c */
77
78extern void error_init (void);
79
c906108c
SS
80/* Whether to enable writing into executable and core files */
81extern int write_files;
82
d9fcf2fb 83static void print_gdb_help (struct ui_file *);
c906108c
SS
84
85/* These two are used to set the external editor commands when gdb is farming
86 out files to be edited by another program. */
87
c5aa993b 88extern char *external_editor_command;
c906108c 89
11cf8741
JM
90/* Call command_loop. If it happens to return, pass that through as a
91 non-zero return status. */
92
93static int
94captured_command_loop (void *data)
c906108c 95{
11cf8741
JM
96 if (command_loop_hook == NULL)
97 command_loop ();
98 else
99 command_loop_hook ();
100 /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
101 would clean things up (restoring the cleanup chain) to the state
102 they were just prior to the call. Technically, this means that
e26cc349 103 the do_cleanups() below is redundant. Unfortunately, many FUNCs
11cf8741
JM
104 are not that well behaved. do_cleanups should either be replaced
105 with a do_cleanups call (to cover the problem) or an assertion
106 check to detect bad FUNCs code. */
107 do_cleanups (ALL_CLEANUPS);
108 /* If the command_loop returned, normally (rather than threw an
109 error) we try to quit. If the quit is aborted, catch_errors()
110 which called this catch the signal and restart the command
111 loop. */
112 quit_command (NULL, instream == stdin);
113 return 1;
114}
115
11cf8741
JM
116static int
117captured_main (void *data)
118{
119 struct captured_main_args *context = data;
120 int argc = context->argc;
121 char **argv = context->argv;
c906108c
SS
122 int count;
123 static int quiet = 0;
124 static int batch = 0;
552c04a7 125 static int set_args = 0;
c906108c
SS
126
127 /* Pointers to various arguments from command line. */
128 char *symarg = NULL;
129 char *execarg = NULL;
130 char *corearg = NULL;
131 char *cdarg = NULL;
132 char *ttyarg = NULL;
133
134 /* These are static so that we can take their address in an initializer. */
135 static int print_help;
136 static int print_version;
137
138 /* Pointers to all arguments of --command option. */
139 char **cmdarg;
140 /* Allocated size of cmdarg. */
141 int cmdsize;
142 /* Number of elements of cmdarg used. */
143 int ncmd;
144
145 /* Indices of all arguments of --directory option. */
146 char **dirarg;
147 /* Allocated size. */
148 int dirsize;
149 /* Number of elements used. */
150 int ndir;
c5aa993b 151
c906108c
SS
152 struct stat homebuf, cwdbuf;
153 char *homedir, *homeinit;
154
155 register int i;
156
157 long time_at_startup = get_run_time ();
158
0fbb3da7
TT
159#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
160 setlocale (LC_MESSAGES, "");
161#endif
162#if defined (HAVE_SETLOCALE)
163 setlocale (LC_CTYPE, "");
164#endif
165 bindtextdomain (PACKAGE, LOCALEDIR);
166 textdomain (PACKAGE);
167
c906108c
SS
168 START_PROGRESS (argv[0], 0);
169
c906108c 170 /* This needs to happen before the first use of malloc. */
762f08a3 171 init_malloc (NULL);
c906108c
SS
172
173#if defined (ALIGN_STACK_ON_STARTUP)
174 i = (int) &count & 0x3;
175 if (i != 0)
176 alloca (4 - i);
177#endif
178
c906108c
SS
179 cmdsize = 1;
180 cmdarg = (char **) xmalloc (cmdsize * sizeof (*cmdarg));
181 ncmd = 0;
182 dirsize = 1;
183 dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg));
184 ndir = 0;
185
186 quit_flag = 0;
187 line = (char *) xmalloc (linesize);
188 line[0] = '\0'; /* Terminate saved (now empty) cmd line */
189 instream = stdin;
190
191 getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
192 current_directory = gdb_dirbuf;
193
da59e081
JM
194 gdb_stdout = stdio_fileopen (stdout);
195 gdb_stderr = stdio_fileopen (stderr);
196 gdb_stdlog = gdb_stderr; /* for moment */
197 gdb_stdtarg = gdb_stderr; /* for moment */
c906108c 198
2acceee2
JM
199 /* initialize error() */
200 error_init ();
201
030292b7
DJ
202 /* Set the sysroot path. */
203#ifdef TARGET_SYSTEM_ROOT_RELOCATABLE
204 gdb_sysroot = make_relative_prefix (argv[0], BINDIR, TARGET_SYSTEM_ROOT);
205 if (gdb_sysroot)
206 {
207 struct stat s;
208 int res = 0;
209
210 if (stat (gdb_sysroot, &s) == 0)
211 if (S_ISDIR (s.st_mode))
212 res = 1;
213
214 if (res == 0)
215 {
a84d24ee 216 xfree (gdb_sysroot);
030292b7
DJ
217 gdb_sysroot = TARGET_SYSTEM_ROOT;
218 }
219 }
220 else
221 gdb_sysroot = TARGET_SYSTEM_ROOT;
222#else
223#if defined (TARGET_SYSTEM_ROOT)
224 gdb_sysroot = TARGET_SYSTEM_ROOT;
225#else
226 gdb_sysroot = "";
227#endif
228#endif
229
c906108c
SS
230 /* Parse arguments and options. */
231 {
232 int c;
233 /* When var field is 0, use flag field to record the equivalent
234 short option (or arbitrary numbers starting at 10 for those
235 with no equivalent). */
236 static struct option long_options[] =
c5aa993b 237 {
6426a772
JM
238 {"async", no_argument, &event_loop_p, 1},
239 {"noasync", no_argument, &event_loop_p, 0},
c906108c 240#if defined(TUI)
c5aa993b 241 {"tui", no_argument, &tui_version, 1},
c906108c 242#endif
c5aa993b
JM
243 {"xdb", no_argument, &xdb_commands, 1},
244 {"dbx", no_argument, &dbx_commands, 1},
245 {"readnow", no_argument, &readnow_symbol_files, 1},
246 {"r", no_argument, &readnow_symbol_files, 1},
247 {"mapped", no_argument, &mapped_symbol_files, 1},
248 {"m", no_argument, &mapped_symbol_files, 1},
249 {"quiet", no_argument, &quiet, 1},
250 {"q", no_argument, &quiet, 1},
251 {"silent", no_argument, &quiet, 1},
252 {"nx", no_argument, &inhibit_gdbinit, 1},
253 {"n", no_argument, &inhibit_gdbinit, 1},
254 {"batch", no_argument, &batch, 1},
255 {"epoch", no_argument, &epoch_interface, 1},
256
257 /* This is a synonym for "--annotate=1". --annotate is now preferred,
258 but keep this here for a long time because people will be running
259 emacses which use --fullname. */
260 {"fullname", no_argument, 0, 'f'},
261 {"f", no_argument, 0, 'f'},
262
263 {"annotate", required_argument, 0, 12},
264 {"help", no_argument, &print_help, 1},
265 {"se", required_argument, 0, 10},
266 {"symbols", required_argument, 0, 's'},
267 {"s", required_argument, 0, 's'},
268 {"exec", required_argument, 0, 'e'},
269 {"e", required_argument, 0, 'e'},
270 {"core", required_argument, 0, 'c'},
271 {"c", required_argument, 0, 'c'},
00546b04
MS
272 {"pid", required_argument, 0, 'p'},
273 {"p", required_argument, 0, 'p'},
c5aa993b
JM
274 {"command", required_argument, 0, 'x'},
275 {"version", no_argument, &print_version, 1},
276 {"x", required_argument, 0, 'x'},
3fc11d3e
JM
277#ifdef GDBTK
278 {"tclcommand", required_argument, 0, 'z'},
279 {"enable-external-editor", no_argument, 0, 'y'},
280 {"editor-command", required_argument, 0, 'w'},
281#endif
8b93c638
JM
282 {"ui", required_argument, 0, 'i'},
283 {"interpreter", required_argument, 0, 'i'},
284 {"i", required_argument, 0, 'i'},
c5aa993b 285 {"directory", required_argument, 0, 'd'},
c4093a6a 286 {"d", required_argument, 0, 'd'},
c5aa993b
JM
287 {"cd", required_argument, 0, 11},
288 {"tty", required_argument, 0, 't'},
289 {"baud", required_argument, 0, 'b'},
290 {"b", required_argument, 0, 'b'},
291 {"nw", no_argument, &use_windows, 0},
292 {"nowindows", no_argument, &use_windows, 0},
293 {"w", no_argument, &use_windows, 1},
294 {"windows", no_argument, &use_windows, 1},
295 {"statistics", no_argument, 0, 13},
296 {"write", no_argument, &write_files, 1},
552c04a7 297 {"args", no_argument, &set_args, 1},
c5aa993b
JM
298 {0, no_argument, 0, 0}
299 };
c906108c
SS
300
301 while (1)
302 {
303 int option_index;
304
305 c = getopt_long_only (argc, argv, "",
306 long_options, &option_index);
552c04a7 307 if (c == EOF || set_args)
c906108c
SS
308 break;
309
310 /* Long option that takes an argument. */
311 if (c == 0 && long_options[option_index].flag == 0)
312 c = long_options[option_index].val;
313
314 switch (c)
315 {
316 case 0:
317 /* Long option that just sets a flag. */
318 break;
319 case 10:
320 symarg = optarg;
321 execarg = optarg;
322 break;
323 case 11:
324 cdarg = optarg;
325 break;
326 case 12:
327 /* FIXME: what if the syntax is wrong (e.g. not digits)? */
328 annotation_level = atoi (optarg);
329 break;
330 case 13:
331 /* Enable the display of both time and space usage. */
332 display_time = 1;
333 display_space = 1;
334 break;
335 case 'f':
336 annotation_level = 1;
337/* We have probably been invoked from emacs. Disable window interface. */
338 use_windows = 0;
339 break;
340 case 's':
341 symarg = optarg;
342 break;
343 case 'e':
344 execarg = optarg;
345 break;
346 case 'c':
347 corearg = optarg;
348 break;
00546b04
MS
349 case 'p':
350 /* "corearg" is shared by "--core" and "--pid" */
351 corearg = optarg;
352 break;
c906108c
SS
353 case 'x':
354 cmdarg[ncmd++] = optarg;
355 if (ncmd >= cmdsize)
356 {
357 cmdsize *= 2;
c5aa993b 358 cmdarg = (char **) xrealloc ((char *) cmdarg,
c906108c
SS
359 cmdsize * sizeof (*cmdarg));
360 }
361 break;
3fc11d3e
JM
362#ifdef GDBTK
363 case 'z':
364 {
a14ed312 365extern int gdbtk_test (char *);
3fc11d3e
JM
366 if (!gdbtk_test (optarg))
367 {
defc6f8c 368 fprintf_unfiltered (gdb_stderr, _("%s: unable to load tclcommand file \"%s\""),
3fc11d3e
JM
369 argv[0], optarg);
370 exit (1);
371 }
372 break;
373 }
374 case 'y':
78f49586
TT
375 /* Backwards compatibility only. */
376 break;
3fc11d3e
JM
377 case 'w':
378 {
3fc11d3e
JM
379 external_editor_command = xstrdup (optarg);
380 break;
381 }
382#endif /* GDBTK */
fb40c209
AC
383 case 'i':
384 interpreter_p = optarg;
385 break;
c906108c
SS
386 case 'd':
387 dirarg[ndir++] = optarg;
388 if (ndir >= dirsize)
389 {
390 dirsize *= 2;
c5aa993b 391 dirarg = (char **) xrealloc ((char *) dirarg,
c906108c
SS
392 dirsize * sizeof (*dirarg));
393 }
394 break;
395 case 't':
396 ttyarg = optarg;
397 break;
398 case 'q':
399 quiet = 1;
400 break;
401 case 'b':
402 {
403 int i;
404 char *p;
405
406 i = strtol (optarg, &p, 0);
407 if (i == 0 && p == optarg)
408
409 /* Don't use *_filtered or warning() (which relies on
c5aa993b 410 current_target) until after initialize_all_files(). */
c906108c
SS
411
412 fprintf_unfiltered
413 (gdb_stderr,
defc6f8c 414 _("warning: could not set baud rate to `%s'.\n"), optarg);
c906108c
SS
415 else
416 baud_rate = i;
417 }
046ca86a 418 break;
c906108c
SS
419 case 'l':
420 {
421 int i;
422 char *p;
423
424 i = strtol (optarg, &p, 0);
425 if (i == 0 && p == optarg)
426
427 /* Don't use *_filtered or warning() (which relies on
c5aa993b 428 current_target) until after initialize_all_files(). */
c906108c
SS
429
430 fprintf_unfiltered
431 (gdb_stderr,
defc6f8c 432 _("warning: could not set timeout limit to `%s'.\n"), optarg);
c906108c
SS
433 else
434 remote_timeout = i;
435 }
436 break;
437
c906108c
SS
438 case '?':
439 fprintf_unfiltered (gdb_stderr,
defc6f8c 440 _("Use `%s --help' for a complete list of options.\n"),
c5aa993b 441 argv[0]);
c906108c
SS
442 exit (1);
443 }
444 }
445
446 /* If --help or --version, disable window interface. */
447 if (print_help || print_version)
448 {
449 use_windows = 0;
450#ifdef TUI
451 /* Disable the TUI as well. */
452 tui_version = 0;
453#endif
454 }
455
456#ifdef TUI
457 /* An explicit --tui flag overrides the default UI, which is the
458 window system. */
459 if (tui_version)
460 use_windows = 0;
c5aa993b 461#endif
c906108c 462
552c04a7
TT
463 if (set_args)
464 {
465 /* The remaining options are the command-line options for the
466 inferior. The first one is the sym/exec file, and the rest
467 are arguments. */
468 if (optind >= argc)
469 {
470 fprintf_unfiltered (gdb_stderr,
defc6f8c 471 _("%s: `--args' specified but no program specified\n"),
552c04a7
TT
472 argv[0]);
473 exit (1);
474 }
475 symarg = argv[optind];
476 execarg = argv[optind];
477 ++optind;
478 set_inferior_args_vector (argc - optind, &argv[optind]);
479 }
480 else
481 {
482 /* OK, that's all the options. The other arguments are filenames. */
483 count = 0;
484 for (; optind < argc; optind++)
485 switch (++count)
486 {
487 case 1:
488 symarg = argv[optind];
489 execarg = argv[optind];
490 break;
491 case 2:
00546b04
MS
492 /* The documentation says this can be a "ProcID" as well.
493 We will try it as both a corefile and a pid. */
552c04a7
TT
494 corearg = argv[optind];
495 break;
496 case 3:
497 fprintf_unfiltered (gdb_stderr,
defc6f8c 498 _("Excess command line arguments ignored. (%s%s)\n"),
552c04a7
TT
499 argv[optind], (optind == argc - 1) ? "" : " ...");
500 break;
501 }
502 }
c906108c
SS
503 if (batch)
504 quiet = 1;
505 }
506
0f71a2f6
JM
507 /* Initialize all files. Give the interpreter a chance to take
508 control of the console via the init_ui_hook()) */
c906108c
SS
509 gdb_init (argv[0]);
510
511 /* Do these (and anything which might call wrap_here or *_filtered)
512 after initialize_all_files. */
513 if (print_version)
514 {
515 print_gdb_version (gdb_stdout);
516 wrap_here ("");
517 printf_filtered ("\n");
518 exit (0);
519 }
520
521 if (print_help)
522 {
523 print_gdb_help (gdb_stdout);
524 fputs_unfiltered ("\n", gdb_stdout);
525 exit (0);
526 }
527
528 if (!quiet)
529 {
530 /* Print all the junk at the top, with trailing "..." if we are about
c5aa993b 531 to read a symbol file (possibly slowly). */
c906108c
SS
532 print_gdb_version (gdb_stdout);
533 if (symarg)
534 printf_filtered ("..");
c5aa993b
JM
535 wrap_here ("");
536 gdb_flush (gdb_stdout); /* Force to screen during slow operations */
c906108c
SS
537 }
538
539 error_pre_print = "\n\n";
540 quit_pre_print = error_pre_print;
541
542 /* We may get more than one warning, don't double space all of them... */
defc6f8c 543 warning_pre_print = _("\nwarning: ");
c906108c
SS
544
545 /* Read and execute $HOME/.gdbinit file, if it exists. This is done
546 *before* all the command line arguments are processed; it sets
547 global parameters, which are independent of what file you are
548 debugging or what directory you are in. */
c5aa993b 549 homedir = getenv ("HOME");
c906108c
SS
550 if (homedir)
551 {
552 homeinit = (char *) alloca (strlen (homedir) +
553 strlen (gdbinit) + 10);
554 strcpy (homeinit, homedir);
555 strcat (homeinit, "/");
556 strcat (homeinit, gdbinit);
557
558 if (!inhibit_gdbinit)
559 {
11cf8741 560 catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL);
c906108c 561 }
c906108c
SS
562
563 /* Do stats; no need to do them elsewhere since we'll only
c5aa993b
JM
564 need them if homedir is set. Make sure that they are
565 zero in case one of them fails (this guarantees that they
566 won't match if either exists). */
567
c906108c
SS
568 memset (&homebuf, 0, sizeof (struct stat));
569 memset (&cwdbuf, 0, sizeof (struct stat));
c5aa993b 570
c906108c 571 stat (homeinit, &homebuf);
c5aa993b
JM
572 stat (gdbinit, &cwdbuf); /* We'll only need this if
573 homedir was set. */
c906108c
SS
574 }
575
576 /* Now perform all the actions indicated by the arguments. */
577 if (cdarg != NULL)
578 {
11cf8741 579 catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL);
c906108c 580 }
c906108c
SS
581
582 for (i = 0; i < ndir; i++)
11cf8741 583 catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL);
b8c9b27d 584 xfree (dirarg);
c906108c
SS
585
586 if (execarg != NULL
587 && symarg != NULL
588 && STREQ (execarg, symarg))
589 {
11cf8741
JM
590 /* The exec file and the symbol-file are the same. If we can't
591 open it, better only print one error message.
592 catch_command_errors returns non-zero on success! */
1adeb98a
FN
593 if (catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL))
594 catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL);
c906108c
SS
595 }
596 else
597 {
598 if (execarg != NULL)
1adeb98a 599 catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL);
c906108c 600 if (symarg != NULL)
1adeb98a 601 catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL);
c906108c 602 }
c906108c
SS
603
604 /* After the symbol file has been read, print a newline to get us
605 beyond the copyright line... But errors should still set off
606 the error message with a (single) blank line. */
607 if (!quiet)
608 printf_filtered ("\n");
609 error_pre_print = "\n";
610 quit_pre_print = error_pre_print;
defc6f8c 611 warning_pre_print = _("\nwarning: ");
c906108c
SS
612
613 if (corearg != NULL)
614 {
00546b04
MS
615 /* corearg may be either a corefile or a pid.
616 If its first character is a digit, try attach first
617 and then corefile. Otherwise try corefile first. */
618
619 if (isdigit (corearg[0]))
11cf8741 620 {
00546b04
MS
621 if (catch_command_errors (attach_command, corearg,
622 !batch, RETURN_MASK_ALL) == 0)
623 catch_command_errors (core_file_command, corearg,
624 !batch, RETURN_MASK_ALL);
11cf8741 625 }
00546b04
MS
626 else /* Can't be a pid, better be a corefile. */
627 catch_command_errors (core_file_command, corearg,
628 !batch, RETURN_MASK_ALL);
c906108c 629 }
c906108c
SS
630
631 if (ttyarg != NULL)
11cf8741 632 catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL);
c906108c 633
c906108c
SS
634 /* Error messages should no longer be distinguished with extra output. */
635 error_pre_print = NULL;
636 quit_pre_print = NULL;
defc6f8c 637 warning_pre_print = _("warning: ");
c906108c
SS
638
639 /* Read the .gdbinit file in the current directory, *if* it isn't
640 the same as the $HOME/.gdbinit file (it should exist, also). */
c5aa993b 641
c906108c
SS
642 if (!homedir
643 || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat)))
644 if (!inhibit_gdbinit)
645 {
11cf8741 646 catch_command_errors (source_command, gdbinit, 0, RETURN_MASK_ALL);
c906108c 647 }
c906108c
SS
648
649 for (i = 0; i < ncmd; i++)
650 {
11cf8741
JM
651#if 0
652 /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that
653 expanded into a call to setjmp(). */
654 if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */
c906108c 655 {
b83266a0
SS
656 /* NOTE: I am commenting this out, because it is not clear
657 where this feature is used. It is very old and
c5aa993b 658 undocumented. ezannoni: 1999-05-04 */
b83266a0 659#if 0
c906108c
SS
660 if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0')
661 read_command_file (stdin);
662 else
b83266a0 663#endif
c906108c
SS
664 source_command (cmdarg[i], !batch);
665 do_cleanups (ALL_CLEANUPS);
666 }
11cf8741
JM
667#endif
668 catch_command_errors (source_command, cmdarg[i], !batch, RETURN_MASK_ALL);
c906108c 669 }
b8c9b27d 670 xfree (cmdarg);
c906108c
SS
671
672 /* Read in the old history after all the command files have been read. */
c5aa993b 673 init_history ();
c906108c
SS
674
675 if (batch)
676 {
677 /* We have hit the end of the batch file. */
678 exit (0);
679 }
680
681 /* Do any host- or target-specific hacks. This is used for i960 targets
682 to force the user to set a nindy target and spec its parameters. */
683
684#ifdef BEFORE_MAIN_LOOP_HOOK
685 BEFORE_MAIN_LOOP_HOOK;
686#endif
687
688 END_PROGRESS (argv[0]);
689
690 /* Show time and/or space usage. */
691
692 if (display_time)
693 {
694 long init_time = get_run_time () - time_at_startup;
695
defc6f8c 696 printf_unfiltered (_("Startup time: %ld.%06ld\n"),
c906108c
SS
697 init_time / 1000000, init_time % 1000000);
698 }
699
700 if (display_space)
701 {
702#ifdef HAVE_SBRK
703 extern char **environ;
704 char *lim = (char *) sbrk (0);
705
defc6f8c 706 printf_unfiltered (_("Startup size: data size %ld\n"),
c906108c
SS
707 (long) (lim - (char *) &environ));
708#endif
709 }
710
11cf8741
JM
711#if 0
712 /* FIXME: cagney/1999-11-06: The original main loop was like: */
c906108c
SS
713 while (1)
714 {
715 if (!SET_TOP_LEVEL ())
716 {
c5aa993b 717 do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */
c906108c
SS
718 /* GUIs generally have their own command loop, mainloop, or whatever.
719 This is a good place to gain control because many error
720 conditions will end up here via longjmp(). */
721 if (command_loop_hook)
722 command_loop_hook ();
723 else
724 command_loop ();
c5aa993b 725 quit_command ((char *) 0, instream == stdin);
c906108c
SS
726 }
727 }
11cf8741
JM
728 /* NOTE: If the command_loop() returned normally, the loop would
729 attempt to exit by calling the function quit_command(). That
730 function would either call exit() or throw an error returning
731 control to SET_TOP_LEVEL. */
732 /* NOTE: The function do_cleanups() was called once each time round
733 the loop. The usefulness of the call isn't clear. If an error
734 was thrown, everything would have already been cleaned up. If
735 command_loop() returned normally and quit_command() was called,
736 either exit() or error() (again cleaning up) would be called. */
737#endif
738 /* NOTE: cagney/1999-11-07: There is probably no reason for not
739 moving this loop and the code found in captured_command_loop()
740 into the command_loop() proper. The main thing holding back that
741 change - SET_TOP_LEVEL() - has been eliminated. */
742 while (1)
743 {
744 catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL);
745 }
11cf8741
JM
746 /* No exit -- exit is through quit_command. */
747}
c906108c 748
11cf8741 749int
f15ab4a7 750gdb_main (struct captured_main_args *args)
11cf8741 751{
f15ab4a7
AC
752 use_windows = args->use_windows;
753 catch_errors (captured_main, args, "", RETURN_MASK_ALL);
11cf8741 754 return 0;
c906108c
SS
755}
756
11cf8741 757
c906108c
SS
758/* Don't use *_filtered for printing help. We don't want to prompt
759 for continue no matter how small the screen or how much we're going
760 to print. */
761
762static void
d9fcf2fb 763print_gdb_help (struct ui_file *stream)
c906108c 764{
defc6f8c 765 fputs_unfiltered (_("\
c906108c 766This is the GNU debugger. Usage:\n\n\
552c04a7
TT
767 gdb [options] [executable-file [core-file or process-id]]\n\
768 gdb [options] --args executable-file [inferior-arguments ...]\n\n\
c906108c 769Options:\n\n\
defc6f8c
TT
770"), stream);
771 fputs_unfiltered (_("\
552c04a7 772 --args Arguments after executable-file are passed to inferior\n\
defc6f8c
TT
773"), stream);
774 fputs_unfiltered (_("\
0f71a2f6 775 --[no]async Enable (disable) asynchronous version of CLI\n\
defc6f8c
TT
776"), stream);
777 fputs_unfiltered (_("\
c906108c
SS
778 -b BAUDRATE Set serial port baud rate used for remote debugging.\n\
779 --batch Exit after processing options.\n\
780 --cd=DIR Change current directory to DIR.\n\
781 --command=FILE Execute GDB commands from FILE.\n\
782 --core=COREFILE Analyze the core dump COREFILE.\n\
00546b04 783 --pid=PID Attach to running process PID.\n\
defc6f8c
TT
784"), stream);
785 fputs_unfiltered (_("\
c906108c
SS
786 --dbx DBX compatibility mode.\n\
787 --directory=DIR Search for source files in DIR.\n\
788 --epoch Output information used by epoch emacs-GDB interface.\n\
789 --exec=EXECFILE Use EXECFILE as the executable.\n\
790 --fullname Output information used by emacs-GDB interface.\n\
791 --help Print this message.\n\
defc6f8c
TT
792"), stream);
793 fputs_unfiltered (_("\
8b93c638
JM
794 --interpreter=INTERP\n\
795 Select a specific interpreter / user interface\n\
defc6f8c
TT
796"), stream);
797 fputs_unfiltered (_("\
c906108c
SS
798 --mapped Use mapped symbol files if supported on this system.\n\
799 --nw Do not use a window interface.\n\
defc6f8c 800 --nx Do not read "), stream);
96baa820 801 fputs_unfiltered (gdbinit, stream);
defc6f8c 802 fputs_unfiltered (_(" file.\n\
c906108c
SS
803 --quiet Do not print version number on startup.\n\
804 --readnow Fully read symbol files on first access.\n\
defc6f8c
TT
805"), stream);
806 fputs_unfiltered (_("\
c906108c
SS
807 --se=FILE Use FILE as symbol file and executable file.\n\
808 --symbols=SYMFILE Read symbols from SYMFILE.\n\
809 --tty=TTY Use TTY for input/output by the program being debugged.\n\
defc6f8c 810"), stream);
c906108c 811#if defined(TUI)
defc6f8c 812 fputs_unfiltered (_("\
c906108c 813 --tui Use a terminal user interface.\n\
defc6f8c 814"), stream);
c906108c 815#endif
defc6f8c 816 fputs_unfiltered (_("\
c906108c
SS
817 --version Print version information and then exit.\n\
818 -w Use a window interface.\n\
819 --write Set writing into executable and core files.\n\
820 --xdb XDB compatibility mode.\n\
defc6f8c 821"), stream);
defc6f8c 822 fputs_unfiltered (_("\n\
c906108c
SS
823For more information, type \"help\" from within GDB, or consult the\n\
824GDB manual (available as on-line info or a printed manual).\n\
2df3850c 825Report bugs to \"bug-gdb@gnu.org\".\
defc6f8c 826"), stream);
c906108c 827}
This page took 0.669677 seconds and 4 git commands to generate.