Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
d9fcf2fb | 2 | Copyright 1986-1995, 1999-2000 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
c5aa993b JM |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | #include "defs.h" | |
c906108c SS |
22 | #include "top.h" |
23 | #include "target.h" | |
24 | #include "inferior.h" | |
25 | #include "call-cmds.h" | |
26 | ||
27 | #include "getopt.h" | |
28 | ||
29 | #include <sys/types.h> | |
30 | #include "gdb_stat.h" | |
31 | #include <ctype.h> | |
32 | ||
33 | #include "gdb_string.h" | |
9e0b60a8 | 34 | #include "event-loop.h" |
8b93c638 | 35 | #include "ui-out.h" |
da59e081 JM |
36 | #if defined (TUI) || defined (GDBTK) |
37 | /* FIXME: cagney/2000-01-31: This #include is to allow older code such | |
38 | as that found in the TUI to continue to build. */ | |
39 | #include "tui/tui-file.h" | |
40 | #endif | |
c906108c | 41 | |
c906108c SS |
42 | /* If nonzero, display time usage both at startup and for each command. */ |
43 | ||
44 | int display_time; | |
45 | ||
46 | /* If nonzero, display space usage both at startup and for each command. */ | |
47 | ||
48 | int 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 | 54 | int event_loop_p = 1; |
cd0fc7c3 | 55 | |
c906108c SS |
56 | /* Whether this is the command line version or not */ |
57 | int tui_version = 0; | |
58 | ||
59 | /* Whether xdb commands will be handled */ | |
60 | int xdb_commands = 0; | |
61 | ||
62 | /* Whether dbx commands will be handled */ | |
63 | int dbx_commands = 0; | |
64 | ||
d9fcf2fb JM |
65 | struct ui_file *gdb_stdout; |
66 | struct ui_file *gdb_stderr; | |
67 | struct ui_file *gdb_stdlog; | |
68 | struct ui_file *gdb_stdtarg; | |
c906108c | 69 | |
2acceee2 JM |
70 | /* Used to initialize error() - defined in utils.c */ |
71 | ||
72 | extern void error_init (void); | |
73 | ||
c906108c SS |
74 | /* Whether to enable writing into executable and core files */ |
75 | extern int write_files; | |
76 | ||
d9fcf2fb | 77 | static void print_gdb_help (struct ui_file *); |
c906108c SS |
78 | |
79 | /* These two are used to set the external editor commands when gdb is farming | |
80 | out files to be edited by another program. */ | |
81 | ||
82 | extern int enable_external_editor; | |
c5aa993b | 83 | extern char *external_editor_command; |
c906108c SS |
84 | |
85 | #ifdef __CYGWIN__ | |
c5aa993b JM |
86 | #include <windows.h> /* for MAX_PATH */ |
87 | #include <sys/cygwin.h> /* for cygwin32_conv_to_posix_path */ | |
c906108c SS |
88 | #endif |
89 | ||
11cf8741 JM |
90 | /* Call command_loop. If it happens to return, pass that through as a |
91 | non-zero return status. */ | |
92 | ||
93 | static int | |
94 | captured_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 | |
103 | the do_cleanups() below is redundant. Unfortunatly, many FUNC's | |
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 | ||
116 | struct captured_main_args | |
117 | { | |
118 | int argc; | |
119 | char **argv; | |
120 | }; | |
121 | ||
122 | static int | |
123 | captured_main (void *data) | |
124 | { | |
125 | struct captured_main_args *context = data; | |
126 | int argc = context->argc; | |
127 | char **argv = context->argv; | |
c906108c SS |
128 | int count; |
129 | static int quiet = 0; | |
130 | static int batch = 0; | |
131 | ||
132 | /* Pointers to various arguments from command line. */ | |
133 | char *symarg = NULL; | |
134 | char *execarg = NULL; | |
135 | char *corearg = NULL; | |
136 | char *cdarg = NULL; | |
137 | char *ttyarg = NULL; | |
138 | ||
139 | /* These are static so that we can take their address in an initializer. */ | |
140 | static int print_help; | |
141 | static int print_version; | |
142 | ||
143 | /* Pointers to all arguments of --command option. */ | |
144 | char **cmdarg; | |
145 | /* Allocated size of cmdarg. */ | |
146 | int cmdsize; | |
147 | /* Number of elements of cmdarg used. */ | |
148 | int ncmd; | |
149 | ||
150 | /* Indices of all arguments of --directory option. */ | |
151 | char **dirarg; | |
152 | /* Allocated size. */ | |
153 | int dirsize; | |
154 | /* Number of elements used. */ | |
155 | int ndir; | |
c5aa993b | 156 | |
c906108c SS |
157 | struct stat homebuf, cwdbuf; |
158 | char *homedir, *homeinit; | |
159 | ||
160 | register int i; | |
161 | ||
162 | long time_at_startup = get_run_time (); | |
163 | ||
c906108c SS |
164 | START_PROGRESS (argv[0], 0); |
165 | ||
166 | #ifdef MPW | |
167 | /* Do all Mac-specific setup. */ | |
168 | mac_init (); | |
169 | #endif /* MPW */ | |
170 | ||
171 | /* This needs to happen before the first use of malloc. */ | |
172 | init_malloc ((PTR) NULL); | |
173 | ||
174 | #if defined (ALIGN_STACK_ON_STARTUP) | |
175 | i = (int) &count & 0x3; | |
176 | if (i != 0) | |
177 | alloca (4 - i); | |
178 | #endif | |
179 | ||
c906108c SS |
180 | cmdsize = 1; |
181 | cmdarg = (char **) xmalloc (cmdsize * sizeof (*cmdarg)); | |
182 | ncmd = 0; | |
183 | dirsize = 1; | |
184 | dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg)); | |
185 | ndir = 0; | |
186 | ||
187 | quit_flag = 0; | |
188 | line = (char *) xmalloc (linesize); | |
189 | line[0] = '\0'; /* Terminate saved (now empty) cmd line */ | |
190 | instream = stdin; | |
191 | ||
192 | getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
193 | current_directory = gdb_dirbuf; | |
194 | ||
da59e081 JM |
195 | #if defined (TUI) || defined (GDBTK) |
196 | /* Older code uses the tui_file and fputs_unfiltered_hook(). It | |
d9fcf2fb | 197 | should be using a customized UI_FILE object and re-initializing |
da59e081 | 198 | within its own _initialize function. */ |
ac9a91a7 JM |
199 | gdb_stdout = tui_fileopen (stdout); |
200 | gdb_stderr = tui_fileopen (stderr); | |
c5aa993b JM |
201 | gdb_stdlog = gdb_stdout; /* for moment */ |
202 | gdb_stdtarg = gdb_stderr; /* for moment */ | |
da59e081 JM |
203 | #else |
204 | gdb_stdout = stdio_fileopen (stdout); | |
205 | gdb_stderr = stdio_fileopen (stderr); | |
206 | gdb_stdlog = gdb_stderr; /* for moment */ | |
207 | gdb_stdtarg = gdb_stderr; /* for moment */ | |
ac9a91a7 | 208 | #endif |
c906108c | 209 | |
2acceee2 JM |
210 | /* initialize error() */ |
211 | error_init (); | |
212 | ||
c906108c SS |
213 | /* Parse arguments and options. */ |
214 | { | |
215 | int c; | |
216 | /* When var field is 0, use flag field to record the equivalent | |
217 | short option (or arbitrary numbers starting at 10 for those | |
218 | with no equivalent). */ | |
219 | static struct option long_options[] = | |
c5aa993b | 220 | { |
6426a772 JM |
221 | {"async", no_argument, &event_loop_p, 1}, |
222 | {"noasync", no_argument, &event_loop_p, 0}, | |
c906108c | 223 | #if defined(TUI) |
c5aa993b | 224 | {"tui", no_argument, &tui_version, 1}, |
c906108c | 225 | #endif |
c5aa993b JM |
226 | {"xdb", no_argument, &xdb_commands, 1}, |
227 | {"dbx", no_argument, &dbx_commands, 1}, | |
228 | {"readnow", no_argument, &readnow_symbol_files, 1}, | |
229 | {"r", no_argument, &readnow_symbol_files, 1}, | |
230 | {"mapped", no_argument, &mapped_symbol_files, 1}, | |
231 | {"m", no_argument, &mapped_symbol_files, 1}, | |
232 | {"quiet", no_argument, &quiet, 1}, | |
233 | {"q", no_argument, &quiet, 1}, | |
234 | {"silent", no_argument, &quiet, 1}, | |
235 | {"nx", no_argument, &inhibit_gdbinit, 1}, | |
236 | {"n", no_argument, &inhibit_gdbinit, 1}, | |
237 | {"batch", no_argument, &batch, 1}, | |
238 | {"epoch", no_argument, &epoch_interface, 1}, | |
239 | ||
240 | /* This is a synonym for "--annotate=1". --annotate is now preferred, | |
241 | but keep this here for a long time because people will be running | |
242 | emacses which use --fullname. */ | |
243 | {"fullname", no_argument, 0, 'f'}, | |
244 | {"f", no_argument, 0, 'f'}, | |
245 | ||
246 | {"annotate", required_argument, 0, 12}, | |
247 | {"help", no_argument, &print_help, 1}, | |
248 | {"se", required_argument, 0, 10}, | |
249 | {"symbols", required_argument, 0, 's'}, | |
250 | {"s", required_argument, 0, 's'}, | |
251 | {"exec", required_argument, 0, 'e'}, | |
252 | {"e", required_argument, 0, 'e'}, | |
253 | {"core", required_argument, 0, 'c'}, | |
254 | {"c", required_argument, 0, 'c'}, | |
255 | {"command", required_argument, 0, 'x'}, | |
256 | {"version", no_argument, &print_version, 1}, | |
257 | {"x", required_argument, 0, 'x'}, | |
3fc11d3e JM |
258 | #ifdef GDBTK |
259 | {"tclcommand", required_argument, 0, 'z'}, | |
260 | {"enable-external-editor", no_argument, 0, 'y'}, | |
261 | {"editor-command", required_argument, 0, 'w'}, | |
262 | #endif | |
8b93c638 JM |
263 | {"ui", required_argument, 0, 'i'}, |
264 | {"interpreter", required_argument, 0, 'i'}, | |
265 | {"i", required_argument, 0, 'i'}, | |
c5aa993b | 266 | {"directory", required_argument, 0, 'd'}, |
c4093a6a | 267 | {"d", required_argument, 0, 'd'}, |
c5aa993b JM |
268 | {"cd", required_argument, 0, 11}, |
269 | {"tty", required_argument, 0, 't'}, | |
270 | {"baud", required_argument, 0, 'b'}, | |
271 | {"b", required_argument, 0, 'b'}, | |
272 | {"nw", no_argument, &use_windows, 0}, | |
273 | {"nowindows", no_argument, &use_windows, 0}, | |
274 | {"w", no_argument, &use_windows, 1}, | |
275 | {"windows", no_argument, &use_windows, 1}, | |
276 | {"statistics", no_argument, 0, 13}, | |
277 | {"write", no_argument, &write_files, 1}, | |
c906108c SS |
278 | /* Allow machine descriptions to add more options... */ |
279 | #ifdef ADDITIONAL_OPTIONS | |
c5aa993b | 280 | ADDITIONAL_OPTIONS |
c906108c | 281 | #endif |
c5aa993b JM |
282 | {0, no_argument, 0, 0} |
283 | }; | |
c906108c SS |
284 | |
285 | while (1) | |
286 | { | |
287 | int option_index; | |
288 | ||
289 | c = getopt_long_only (argc, argv, "", | |
290 | long_options, &option_index); | |
291 | if (c == EOF) | |
292 | break; | |
293 | ||
294 | /* Long option that takes an argument. */ | |
295 | if (c == 0 && long_options[option_index].flag == 0) | |
296 | c = long_options[option_index].val; | |
297 | ||
298 | switch (c) | |
299 | { | |
300 | case 0: | |
301 | /* Long option that just sets a flag. */ | |
302 | break; | |
303 | case 10: | |
304 | symarg = optarg; | |
305 | execarg = optarg; | |
306 | break; | |
307 | case 11: | |
308 | cdarg = optarg; | |
309 | break; | |
310 | case 12: | |
311 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ | |
312 | annotation_level = atoi (optarg); | |
313 | break; | |
314 | case 13: | |
315 | /* Enable the display of both time and space usage. */ | |
316 | display_time = 1; | |
317 | display_space = 1; | |
318 | break; | |
319 | case 'f': | |
320 | annotation_level = 1; | |
321 | /* We have probably been invoked from emacs. Disable window interface. */ | |
322 | use_windows = 0; | |
323 | break; | |
324 | case 's': | |
325 | symarg = optarg; | |
326 | break; | |
327 | case 'e': | |
328 | execarg = optarg; | |
329 | break; | |
330 | case 'c': | |
331 | corearg = optarg; | |
332 | break; | |
333 | case 'x': | |
334 | cmdarg[ncmd++] = optarg; | |
335 | if (ncmd >= cmdsize) | |
336 | { | |
337 | cmdsize *= 2; | |
c5aa993b | 338 | cmdarg = (char **) xrealloc ((char *) cmdarg, |
c906108c SS |
339 | cmdsize * sizeof (*cmdarg)); |
340 | } | |
341 | break; | |
3fc11d3e JM |
342 | #ifdef GDBTK |
343 | case 'z': | |
344 | { | |
345 | extern int gdbtk_test PARAMS ((char *)); | |
346 | if (!gdbtk_test (optarg)) | |
347 | { | |
348 | fprintf_unfiltered (gdb_stderr, "%s: unable to load tclcommand file \"%s\"", | |
349 | argv[0], optarg); | |
350 | exit (1); | |
351 | } | |
352 | break; | |
353 | } | |
354 | case 'y': | |
355 | { | |
356 | /* | |
357 | * This enables the edit/button in the main window, even | |
358 | * when IDE_ENABLED is set to false. In this case you must | |
359 | * use --tclcommand to specify a tcl/script to be called, | |
360 | * Tcl/Variable to store the edit/command is: | |
361 | * external_editor | |
362 | */ | |
363 | enable_external_editor = 1; | |
364 | break; | |
365 | } | |
366 | case 'w': | |
367 | { | |
368 | /* | |
369 | * if editor command is enabled, both flags are set | |
370 | */ | |
371 | enable_external_editor = 1; | |
372 | external_editor_command = xstrdup (optarg); | |
373 | break; | |
374 | } | |
375 | #endif /* GDBTK */ | |
c906108c SS |
376 | case 'd': |
377 | dirarg[ndir++] = optarg; | |
378 | if (ndir >= dirsize) | |
379 | { | |
380 | dirsize *= 2; | |
c5aa993b | 381 | dirarg = (char **) xrealloc ((char *) dirarg, |
c906108c SS |
382 | dirsize * sizeof (*dirarg)); |
383 | } | |
384 | break; | |
385 | case 't': | |
386 | ttyarg = optarg; | |
387 | break; | |
388 | case 'q': | |
389 | quiet = 1; | |
390 | break; | |
391 | case 'b': | |
392 | { | |
393 | int i; | |
394 | char *p; | |
395 | ||
396 | i = strtol (optarg, &p, 0); | |
397 | if (i == 0 && p == optarg) | |
398 | ||
399 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 400 | current_target) until after initialize_all_files(). */ |
c906108c SS |
401 | |
402 | fprintf_unfiltered | |
403 | (gdb_stderr, | |
404 | "warning: could not set baud rate to `%s'.\n", optarg); | |
405 | else | |
406 | baud_rate = i; | |
407 | } | |
408 | case 'l': | |
409 | { | |
410 | int i; | |
411 | char *p; | |
412 | ||
413 | i = strtol (optarg, &p, 0); | |
414 | if (i == 0 && p == optarg) | |
415 | ||
416 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 417 | current_target) until after initialize_all_files(). */ |
c906108c SS |
418 | |
419 | fprintf_unfiltered | |
420 | (gdb_stderr, | |
c5aa993b | 421 | "warning: could not set timeout limit to `%s'.\n", optarg); |
c906108c SS |
422 | else |
423 | remote_timeout = i; | |
424 | } | |
425 | break; | |
426 | ||
427 | #ifdef ADDITIONAL_OPTION_CASES | |
c5aa993b | 428 | ADDITIONAL_OPTION_CASES |
c906108c SS |
429 | #endif |
430 | case '?': | |
431 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b JM |
432 | "Use `%s --help' for a complete list of options.\n", |
433 | argv[0]); | |
c906108c SS |
434 | exit (1); |
435 | } | |
436 | } | |
437 | ||
438 | /* If --help or --version, disable window interface. */ | |
439 | if (print_help || print_version) | |
440 | { | |
441 | use_windows = 0; | |
442 | #ifdef TUI | |
443 | /* Disable the TUI as well. */ | |
444 | tui_version = 0; | |
445 | #endif | |
446 | } | |
447 | ||
448 | #ifdef TUI | |
449 | /* An explicit --tui flag overrides the default UI, which is the | |
450 | window system. */ | |
451 | if (tui_version) | |
452 | use_windows = 0; | |
c5aa993b | 453 | #endif |
c906108c SS |
454 | |
455 | /* OK, that's all the options. The other arguments are filenames. */ | |
456 | count = 0; | |
457 | for (; optind < argc; optind++) | |
458 | switch (++count) | |
459 | { | |
460 | case 1: | |
461 | symarg = argv[optind]; | |
462 | execarg = argv[optind]; | |
463 | break; | |
464 | case 2: | |
465 | corearg = argv[optind]; | |
466 | break; | |
467 | case 3: | |
468 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b JM |
469 | "Excess command line arguments ignored. (%s%s)\n", |
470 | argv[optind], (optind == argc - 1) ? "" : " ..."); | |
c906108c SS |
471 | break; |
472 | } | |
473 | if (batch) | |
474 | quiet = 1; | |
475 | } | |
476 | ||
477 | #if defined(TUI) | |
0f71a2f6 | 478 | /* Should this be moved to tui-top.c:_initialize_tui()? */ |
c906108c SS |
479 | if (tui_version) |
480 | init_ui_hook = tuiInit; | |
481 | #endif | |
0f71a2f6 JM |
482 | |
483 | /* Initialize all files. Give the interpreter a chance to take | |
484 | control of the console via the init_ui_hook()) */ | |
c906108c SS |
485 | gdb_init (argv[0]); |
486 | ||
487 | /* Do these (and anything which might call wrap_here or *_filtered) | |
488 | after initialize_all_files. */ | |
489 | if (print_version) | |
490 | { | |
491 | print_gdb_version (gdb_stdout); | |
492 | wrap_here (""); | |
493 | printf_filtered ("\n"); | |
494 | exit (0); | |
495 | } | |
496 | ||
497 | if (print_help) | |
498 | { | |
499 | print_gdb_help (gdb_stdout); | |
500 | fputs_unfiltered ("\n", gdb_stdout); | |
501 | exit (0); | |
502 | } | |
503 | ||
504 | if (!quiet) | |
505 | { | |
506 | /* Print all the junk at the top, with trailing "..." if we are about | |
c5aa993b | 507 | to read a symbol file (possibly slowly). */ |
c906108c SS |
508 | print_gdb_version (gdb_stdout); |
509 | if (symarg) | |
510 | printf_filtered (".."); | |
c5aa993b JM |
511 | wrap_here (""); |
512 | gdb_flush (gdb_stdout); /* Force to screen during slow operations */ | |
c906108c SS |
513 | } |
514 | ||
515 | error_pre_print = "\n\n"; | |
516 | quit_pre_print = error_pre_print; | |
517 | ||
518 | /* We may get more than one warning, don't double space all of them... */ | |
519 | warning_pre_print = "\nwarning: "; | |
520 | ||
521 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done | |
522 | *before* all the command line arguments are processed; it sets | |
523 | global parameters, which are independent of what file you are | |
524 | debugging or what directory you are in. */ | |
525 | #ifdef __CYGWIN32__ | |
526 | { | |
c5aa993b JM |
527 | char *tmp = getenv ("HOME"); |
528 | ||
c906108c SS |
529 | if (tmp != NULL) |
530 | { | |
c5aa993b JM |
531 | homedir = (char *) alloca (MAX_PATH + 1); |
532 | cygwin32_conv_to_posix_path (tmp, homedir); | |
c906108c SS |
533 | } |
534 | else | |
535 | homedir = NULL; | |
536 | } | |
537 | #else | |
c5aa993b | 538 | homedir = getenv ("HOME"); |
c906108c SS |
539 | #endif |
540 | if (homedir) | |
541 | { | |
542 | homeinit = (char *) alloca (strlen (homedir) + | |
543 | strlen (gdbinit) + 10); | |
544 | strcpy (homeinit, homedir); | |
545 | strcat (homeinit, "/"); | |
546 | strcat (homeinit, gdbinit); | |
547 | ||
548 | if (!inhibit_gdbinit) | |
549 | { | |
11cf8741 | 550 | catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL); |
c906108c | 551 | } |
c906108c SS |
552 | |
553 | /* Do stats; no need to do them elsewhere since we'll only | |
c5aa993b JM |
554 | need them if homedir is set. Make sure that they are |
555 | zero in case one of them fails (this guarantees that they | |
556 | won't match if either exists). */ | |
557 | ||
c906108c SS |
558 | memset (&homebuf, 0, sizeof (struct stat)); |
559 | memset (&cwdbuf, 0, sizeof (struct stat)); | |
c5aa993b | 560 | |
c906108c | 561 | stat (homeinit, &homebuf); |
c5aa993b JM |
562 | stat (gdbinit, &cwdbuf); /* We'll only need this if |
563 | homedir was set. */ | |
c906108c SS |
564 | } |
565 | ||
566 | /* Now perform all the actions indicated by the arguments. */ | |
567 | if (cdarg != NULL) | |
568 | { | |
11cf8741 | 569 | catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL); |
c906108c | 570 | } |
c906108c SS |
571 | |
572 | for (i = 0; i < ndir; i++) | |
11cf8741 | 573 | catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL); |
c5aa993b | 574 | free ((PTR) dirarg); |
c906108c SS |
575 | |
576 | if (execarg != NULL | |
577 | && symarg != NULL | |
578 | && STREQ (execarg, symarg)) | |
579 | { | |
11cf8741 JM |
580 | /* The exec file and the symbol-file are the same. If we can't |
581 | open it, better only print one error message. | |
582 | catch_command_errors returns non-zero on success! */ | |
583 | if (catch_command_errors (exec_file_command, execarg, !batch, RETURN_MASK_ALL)) | |
584 | catch_command_errors (symbol_file_command, symarg, 0, RETURN_MASK_ALL); | |
c906108c SS |
585 | } |
586 | else | |
587 | { | |
588 | if (execarg != NULL) | |
11cf8741 | 589 | catch_command_errors (exec_file_command, execarg, !batch, RETURN_MASK_ALL); |
c906108c | 590 | if (symarg != NULL) |
11cf8741 | 591 | catch_command_errors (symbol_file_command, symarg, 0, RETURN_MASK_ALL); |
c906108c | 592 | } |
c906108c SS |
593 | |
594 | /* After the symbol file has been read, print a newline to get us | |
595 | beyond the copyright line... But errors should still set off | |
596 | the error message with a (single) blank line. */ | |
597 | if (!quiet) | |
598 | printf_filtered ("\n"); | |
599 | error_pre_print = "\n"; | |
600 | quit_pre_print = error_pre_print; | |
601 | warning_pre_print = "\nwarning: "; | |
602 | ||
603 | if (corearg != NULL) | |
604 | { | |
11cf8741 JM |
605 | if (catch_command_errors (core_file_command, corearg, !batch, RETURN_MASK_ALL) == 0) |
606 | { | |
607 | /* See if the core file is really a PID. */ | |
608 | if (isdigit (corearg[0])) | |
609 | catch_command_errors (attach_command, corearg, !batch, RETURN_MASK_ALL); | |
610 | } | |
c906108c | 611 | } |
c906108c SS |
612 | |
613 | if (ttyarg != NULL) | |
11cf8741 | 614 | catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL); |
c906108c SS |
615 | |
616 | #ifdef ADDITIONAL_OPTION_HANDLER | |
617 | ADDITIONAL_OPTION_HANDLER; | |
618 | #endif | |
619 | ||
620 | /* Error messages should no longer be distinguished with extra output. */ | |
621 | error_pre_print = NULL; | |
622 | quit_pre_print = NULL; | |
623 | warning_pre_print = "warning: "; | |
624 | ||
625 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
626 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
c5aa993b | 627 | |
c906108c SS |
628 | if (!homedir |
629 | || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat))) | |
630 | if (!inhibit_gdbinit) | |
631 | { | |
11cf8741 | 632 | catch_command_errors (source_command, gdbinit, 0, RETURN_MASK_ALL); |
c906108c | 633 | } |
c906108c SS |
634 | |
635 | for (i = 0; i < ncmd; i++) | |
636 | { | |
11cf8741 JM |
637 | #if 0 |
638 | /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that | |
639 | expanded into a call to setjmp(). */ | |
640 | if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */ | |
c906108c | 641 | { |
b83266a0 SS |
642 | /* NOTE: I am commenting this out, because it is not clear |
643 | where this feature is used. It is very old and | |
c5aa993b | 644 | undocumented. ezannoni: 1999-05-04 */ |
b83266a0 | 645 | #if 0 |
c906108c SS |
646 | if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0') |
647 | read_command_file (stdin); | |
648 | else | |
b83266a0 | 649 | #endif |
c906108c SS |
650 | source_command (cmdarg[i], !batch); |
651 | do_cleanups (ALL_CLEANUPS); | |
652 | } | |
11cf8741 JM |
653 | #endif |
654 | catch_command_errors (source_command, cmdarg[i], !batch, RETURN_MASK_ALL); | |
c906108c | 655 | } |
c5aa993b | 656 | free ((PTR) cmdarg); |
c906108c SS |
657 | |
658 | /* Read in the old history after all the command files have been read. */ | |
c5aa993b | 659 | init_history (); |
c906108c SS |
660 | |
661 | if (batch) | |
662 | { | |
663 | /* We have hit the end of the batch file. */ | |
664 | exit (0); | |
665 | } | |
666 | ||
667 | /* Do any host- or target-specific hacks. This is used for i960 targets | |
668 | to force the user to set a nindy target and spec its parameters. */ | |
669 | ||
670 | #ifdef BEFORE_MAIN_LOOP_HOOK | |
671 | BEFORE_MAIN_LOOP_HOOK; | |
672 | #endif | |
673 | ||
674 | END_PROGRESS (argv[0]); | |
675 | ||
676 | /* Show time and/or space usage. */ | |
677 | ||
678 | if (display_time) | |
679 | { | |
680 | long init_time = get_run_time () - time_at_startup; | |
681 | ||
682 | printf_unfiltered ("Startup time: %ld.%06ld\n", | |
683 | init_time / 1000000, init_time % 1000000); | |
684 | } | |
685 | ||
686 | if (display_space) | |
687 | { | |
688 | #ifdef HAVE_SBRK | |
689 | extern char **environ; | |
690 | char *lim = (char *) sbrk (0); | |
691 | ||
692 | printf_unfiltered ("Startup size: data size %ld\n", | |
693 | (long) (lim - (char *) &environ)); | |
694 | #endif | |
695 | } | |
696 | ||
697 | /* The default command loop. | |
698 | The WIN32 Gui calls this main to set up gdb's state, and | |
699 | has its own command loop. */ | |
700 | #if !defined _WIN32 || defined __GNUC__ | |
11cf8741 JM |
701 | /* GUIs generally have their own command loop, mainloop, or |
702 | whatever. This is a good place to gain control because many | |
703 | error conditions will end up here via longjmp(). */ | |
704 | #if 0 | |
705 | /* FIXME: cagney/1999-11-06: The original main loop was like: */ | |
c906108c SS |
706 | while (1) |
707 | { | |
708 | if (!SET_TOP_LEVEL ()) | |
709 | { | |
c5aa993b | 710 | do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */ |
c906108c SS |
711 | /* GUIs generally have their own command loop, mainloop, or whatever. |
712 | This is a good place to gain control because many error | |
713 | conditions will end up here via longjmp(). */ | |
714 | if (command_loop_hook) | |
715 | command_loop_hook (); | |
716 | else | |
717 | command_loop (); | |
c5aa993b | 718 | quit_command ((char *) 0, instream == stdin); |
c906108c SS |
719 | } |
720 | } | |
11cf8741 JM |
721 | /* NOTE: If the command_loop() returned normally, the loop would |
722 | attempt to exit by calling the function quit_command(). That | |
723 | function would either call exit() or throw an error returning | |
724 | control to SET_TOP_LEVEL. */ | |
725 | /* NOTE: The function do_cleanups() was called once each time round | |
726 | the loop. The usefulness of the call isn't clear. If an error | |
727 | was thrown, everything would have already been cleaned up. If | |
728 | command_loop() returned normally and quit_command() was called, | |
729 | either exit() or error() (again cleaning up) would be called. */ | |
730 | #endif | |
731 | /* NOTE: cagney/1999-11-07: There is probably no reason for not | |
732 | moving this loop and the code found in captured_command_loop() | |
733 | into the command_loop() proper. The main thing holding back that | |
734 | change - SET_TOP_LEVEL() - has been eliminated. */ | |
735 | while (1) | |
736 | { | |
737 | catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); | |
738 | } | |
c906108c | 739 | #endif |
11cf8741 JM |
740 | /* No exit -- exit is through quit_command. */ |
741 | } | |
c906108c | 742 | |
11cf8741 JM |
743 | int |
744 | main (int argc, char **argv) | |
745 | { | |
11cf8741 JM |
746 | struct captured_main_args args; |
747 | args.argc = argc; | |
748 | args.argv = argv; | |
749 | catch_errors (captured_main, &args, "", RETURN_MASK_ALL); | |
750 | return 0; | |
c906108c SS |
751 | } |
752 | ||
11cf8741 | 753 | |
c906108c SS |
754 | /* Don't use *_filtered for printing help. We don't want to prompt |
755 | for continue no matter how small the screen or how much we're going | |
756 | to print. */ | |
757 | ||
758 | static void | |
d9fcf2fb | 759 | print_gdb_help (struct ui_file *stream) |
c906108c | 760 | { |
c5aa993b | 761 | fputs_unfiltered ("\ |
c906108c SS |
762 | This is the GNU debugger. Usage:\n\n\ |
763 | gdb [options] [executable-file [core-file or process-id]]\n\n\ | |
764 | Options:\n\n\ | |
0f71a2f6 | 765 | ", stream); |
c5aa993b | 766 | fputs_unfiltered ("\ |
0f71a2f6 | 767 | --[no]async Enable (disable) asynchronous version of CLI\n\ |
c906108c | 768 | ", stream); |
c5aa993b | 769 | fputs_unfiltered ("\ |
c906108c SS |
770 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ |
771 | --batch Exit after processing options.\n\ | |
772 | --cd=DIR Change current directory to DIR.\n\ | |
773 | --command=FILE Execute GDB commands from FILE.\n\ | |
774 | --core=COREFILE Analyze the core dump COREFILE.\n\ | |
775 | ", stream); | |
c5aa993b | 776 | fputs_unfiltered ("\ |
c906108c SS |
777 | --dbx DBX compatibility mode.\n\ |
778 | --directory=DIR Search for source files in DIR.\n\ | |
779 | --epoch Output information used by epoch emacs-GDB interface.\n\ | |
780 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
781 | --fullname Output information used by emacs-GDB interface.\n\ | |
782 | --help Print this message.\n\ | |
8b93c638 JM |
783 | ", stream); |
784 | fputs_unfiltered ("\ | |
785 | --interpreter=INTERP\n\ | |
786 | Select a specific interpreter / user interface\n\ | |
c906108c | 787 | ", stream); |
c5aa993b | 788 | fputs_unfiltered ("\ |
c906108c SS |
789 | --mapped Use mapped symbol files if supported on this system.\n\ |
790 | --nw Do not use a window interface.\n\ | |
96baa820 JM |
791 | --nx Do not read ", stream); |
792 | fputs_unfiltered (gdbinit, stream); | |
793 | fputs_unfiltered (" file.\n\ | |
c906108c SS |
794 | --quiet Do not print version number on startup.\n\ |
795 | --readnow Fully read symbol files on first access.\n\ | |
796 | ", stream); | |
c5aa993b | 797 | fputs_unfiltered ("\ |
c906108c SS |
798 | --se=FILE Use FILE as symbol file and executable file.\n\ |
799 | --symbols=SYMFILE Read symbols from SYMFILE.\n\ | |
800 | --tty=TTY Use TTY for input/output by the program being debugged.\n\ | |
801 | ", stream); | |
802 | #if defined(TUI) | |
c5aa993b | 803 | fputs_unfiltered ("\ |
c906108c SS |
804 | --tui Use a terminal user interface.\n\ |
805 | ", stream); | |
806 | #endif | |
c5aa993b | 807 | fputs_unfiltered ("\ |
c906108c SS |
808 | --version Print version information and then exit.\n\ |
809 | -w Use a window interface.\n\ | |
810 | --write Set writing into executable and core files.\n\ | |
811 | --xdb XDB compatibility mode.\n\ | |
812 | ", stream); | |
813 | #ifdef ADDITIONAL_OPTION_HELP | |
c5aa993b | 814 | fputs_unfiltered (ADDITIONAL_OPTION_HELP, stream); |
c906108c | 815 | #endif |
c5aa993b | 816 | fputs_unfiltered ("\n\ |
c906108c SS |
817 | For more information, type \"help\" from within GDB, or consult the\n\ |
818 | GDB manual (available as on-line info or a printed manual).\n\ | |
2df3850c | 819 | Report bugs to \"bug-gdb@gnu.org\".\ |
c906108c SS |
820 | ", stream); |
821 | } |