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