Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
085dd6e6 | 2 | Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 1999 |
c906108c SS |
3 | Free Software Foundation, Inc. |
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" | |
26 | #include "call-cmds.h" | |
27 | ||
28 | #include "getopt.h" | |
29 | ||
30 | #include <sys/types.h> | |
31 | #include "gdb_stat.h" | |
32 | #include <ctype.h> | |
33 | ||
34 | #include "gdb_string.h" | |
9e0b60a8 | 35 | #include "event-loop.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 | ||
65 | GDB_FILE *gdb_stdout; | |
66 | GDB_FILE *gdb_stderr; | |
0f71a2f6 | 67 | GDB_FILE *gdb_stdlog; |
43ff13b4 | 68 | GDB_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 | ||
77 | static void print_gdb_help PARAMS ((GDB_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 | |
197 | should be using a customized GDB_FILE object and re-initializing | |
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'}, | |
258 | {"directory", required_argument, 0, 'd'}, | |
c4093a6a | 259 | {"d", required_argument, 0, 'd'}, |
c5aa993b JM |
260 | {"cd", required_argument, 0, 11}, |
261 | {"tty", required_argument, 0, 't'}, | |
262 | {"baud", required_argument, 0, 'b'}, | |
263 | {"b", required_argument, 0, 'b'}, | |
264 | {"nw", no_argument, &use_windows, 0}, | |
265 | {"nowindows", no_argument, &use_windows, 0}, | |
266 | {"w", no_argument, &use_windows, 1}, | |
267 | {"windows", no_argument, &use_windows, 1}, | |
268 | {"statistics", no_argument, 0, 13}, | |
269 | {"write", no_argument, &write_files, 1}, | |
c906108c SS |
270 | /* Allow machine descriptions to add more options... */ |
271 | #ifdef ADDITIONAL_OPTIONS | |
c5aa993b | 272 | ADDITIONAL_OPTIONS |
c906108c | 273 | #endif |
c5aa993b JM |
274 | {0, no_argument, 0, 0} |
275 | }; | |
c906108c SS |
276 | |
277 | while (1) | |
278 | { | |
279 | int option_index; | |
280 | ||
281 | c = getopt_long_only (argc, argv, "", | |
282 | long_options, &option_index); | |
283 | if (c == EOF) | |
284 | break; | |
285 | ||
286 | /* Long option that takes an argument. */ | |
287 | if (c == 0 && long_options[option_index].flag == 0) | |
288 | c = long_options[option_index].val; | |
289 | ||
290 | switch (c) | |
291 | { | |
292 | case 0: | |
293 | /* Long option that just sets a flag. */ | |
294 | break; | |
295 | case 10: | |
296 | symarg = optarg; | |
297 | execarg = optarg; | |
298 | break; | |
299 | case 11: | |
300 | cdarg = optarg; | |
301 | break; | |
302 | case 12: | |
303 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ | |
304 | annotation_level = atoi (optarg); | |
305 | break; | |
306 | case 13: | |
307 | /* Enable the display of both time and space usage. */ | |
308 | display_time = 1; | |
309 | display_space = 1; | |
310 | break; | |
311 | case 'f': | |
312 | annotation_level = 1; | |
313 | /* We have probably been invoked from emacs. Disable window interface. */ | |
314 | use_windows = 0; | |
315 | break; | |
316 | case 's': | |
317 | symarg = optarg; | |
318 | break; | |
319 | case 'e': | |
320 | execarg = optarg; | |
321 | break; | |
322 | case 'c': | |
323 | corearg = optarg; | |
324 | break; | |
325 | case 'x': | |
326 | cmdarg[ncmd++] = optarg; | |
327 | if (ncmd >= cmdsize) | |
328 | { | |
329 | cmdsize *= 2; | |
c5aa993b | 330 | cmdarg = (char **) xrealloc ((char *) cmdarg, |
c906108c SS |
331 | cmdsize * sizeof (*cmdarg)); |
332 | } | |
333 | break; | |
334 | case 'd': | |
335 | dirarg[ndir++] = optarg; | |
336 | if (ndir >= dirsize) | |
337 | { | |
338 | dirsize *= 2; | |
c5aa993b | 339 | dirarg = (char **) xrealloc ((char *) dirarg, |
c906108c SS |
340 | dirsize * sizeof (*dirarg)); |
341 | } | |
342 | break; | |
343 | case 't': | |
344 | ttyarg = optarg; | |
345 | break; | |
346 | case 'q': | |
347 | quiet = 1; | |
348 | break; | |
349 | case 'b': | |
350 | { | |
351 | int i; | |
352 | char *p; | |
353 | ||
354 | i = strtol (optarg, &p, 0); | |
355 | if (i == 0 && p == optarg) | |
356 | ||
357 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 358 | current_target) until after initialize_all_files(). */ |
c906108c SS |
359 | |
360 | fprintf_unfiltered | |
361 | (gdb_stderr, | |
362 | "warning: could not set baud rate to `%s'.\n", optarg); | |
363 | else | |
364 | baud_rate = i; | |
365 | } | |
366 | case 'l': | |
367 | { | |
368 | int i; | |
369 | char *p; | |
370 | ||
371 | i = strtol (optarg, &p, 0); | |
372 | if (i == 0 && p == optarg) | |
373 | ||
374 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 375 | current_target) until after initialize_all_files(). */ |
c906108c SS |
376 | |
377 | fprintf_unfiltered | |
378 | (gdb_stderr, | |
c5aa993b | 379 | "warning: could not set timeout limit to `%s'.\n", optarg); |
c906108c SS |
380 | else |
381 | remote_timeout = i; | |
382 | } | |
383 | break; | |
384 | ||
385 | #ifdef ADDITIONAL_OPTION_CASES | |
c5aa993b | 386 | ADDITIONAL_OPTION_CASES |
c906108c SS |
387 | #endif |
388 | case '?': | |
389 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b JM |
390 | "Use `%s --help' for a complete list of options.\n", |
391 | argv[0]); | |
c906108c SS |
392 | exit (1); |
393 | } | |
394 | } | |
395 | ||
396 | /* If --help or --version, disable window interface. */ | |
397 | if (print_help || print_version) | |
398 | { | |
399 | use_windows = 0; | |
400 | #ifdef TUI | |
401 | /* Disable the TUI as well. */ | |
402 | tui_version = 0; | |
403 | #endif | |
404 | } | |
405 | ||
406 | #ifdef TUI | |
407 | /* An explicit --tui flag overrides the default UI, which is the | |
408 | window system. */ | |
409 | if (tui_version) | |
410 | use_windows = 0; | |
c5aa993b | 411 | #endif |
c906108c SS |
412 | |
413 | /* OK, that's all the options. The other arguments are filenames. */ | |
414 | count = 0; | |
415 | for (; optind < argc; optind++) | |
416 | switch (++count) | |
417 | { | |
418 | case 1: | |
419 | symarg = argv[optind]; | |
420 | execarg = argv[optind]; | |
421 | break; | |
422 | case 2: | |
423 | corearg = argv[optind]; | |
424 | break; | |
425 | case 3: | |
426 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b JM |
427 | "Excess command line arguments ignored. (%s%s)\n", |
428 | argv[optind], (optind == argc - 1) ? "" : " ..."); | |
c906108c SS |
429 | break; |
430 | } | |
431 | if (batch) | |
432 | quiet = 1; | |
433 | } | |
434 | ||
435 | #if defined(TUI) | |
0f71a2f6 | 436 | /* Should this be moved to tui-top.c:_initialize_tui()? */ |
c906108c SS |
437 | if (tui_version) |
438 | init_ui_hook = tuiInit; | |
439 | #endif | |
0f71a2f6 JM |
440 | |
441 | /* Initialize all files. Give the interpreter a chance to take | |
442 | control of the console via the init_ui_hook()) */ | |
c906108c SS |
443 | gdb_init (argv[0]); |
444 | ||
445 | /* Do these (and anything which might call wrap_here or *_filtered) | |
446 | after initialize_all_files. */ | |
447 | if (print_version) | |
448 | { | |
449 | print_gdb_version (gdb_stdout); | |
450 | wrap_here (""); | |
451 | printf_filtered ("\n"); | |
452 | exit (0); | |
453 | } | |
454 | ||
455 | if (print_help) | |
456 | { | |
457 | print_gdb_help (gdb_stdout); | |
458 | fputs_unfiltered ("\n", gdb_stdout); | |
459 | exit (0); | |
460 | } | |
461 | ||
462 | if (!quiet) | |
463 | { | |
464 | /* Print all the junk at the top, with trailing "..." if we are about | |
c5aa993b | 465 | to read a symbol file (possibly slowly). */ |
c906108c SS |
466 | print_gdb_version (gdb_stdout); |
467 | if (symarg) | |
468 | printf_filtered (".."); | |
c5aa993b JM |
469 | wrap_here (""); |
470 | gdb_flush (gdb_stdout); /* Force to screen during slow operations */ | |
c906108c SS |
471 | } |
472 | ||
473 | error_pre_print = "\n\n"; | |
474 | quit_pre_print = error_pre_print; | |
475 | ||
476 | /* We may get more than one warning, don't double space all of them... */ | |
477 | warning_pre_print = "\nwarning: "; | |
478 | ||
479 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done | |
480 | *before* all the command line arguments are processed; it sets | |
481 | global parameters, which are independent of what file you are | |
482 | debugging or what directory you are in. */ | |
483 | #ifdef __CYGWIN32__ | |
484 | { | |
c5aa993b JM |
485 | char *tmp = getenv ("HOME"); |
486 | ||
c906108c SS |
487 | if (tmp != NULL) |
488 | { | |
c5aa993b JM |
489 | homedir = (char *) alloca (MAX_PATH + 1); |
490 | cygwin32_conv_to_posix_path (tmp, homedir); | |
c906108c SS |
491 | } |
492 | else | |
493 | homedir = NULL; | |
494 | } | |
495 | #else | |
c5aa993b | 496 | homedir = getenv ("HOME"); |
c906108c SS |
497 | #endif |
498 | if (homedir) | |
499 | { | |
500 | homeinit = (char *) alloca (strlen (homedir) + | |
501 | strlen (gdbinit) + 10); | |
502 | strcpy (homeinit, homedir); | |
503 | strcat (homeinit, "/"); | |
504 | strcat (homeinit, gdbinit); | |
505 | ||
506 | if (!inhibit_gdbinit) | |
507 | { | |
11cf8741 | 508 | catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL); |
c906108c | 509 | } |
c906108c SS |
510 | |
511 | /* Do stats; no need to do them elsewhere since we'll only | |
c5aa993b JM |
512 | need them if homedir is set. Make sure that they are |
513 | zero in case one of them fails (this guarantees that they | |
514 | won't match if either exists). */ | |
515 | ||
c906108c SS |
516 | memset (&homebuf, 0, sizeof (struct stat)); |
517 | memset (&cwdbuf, 0, sizeof (struct stat)); | |
c5aa993b | 518 | |
c906108c | 519 | stat (homeinit, &homebuf); |
c5aa993b JM |
520 | stat (gdbinit, &cwdbuf); /* We'll only need this if |
521 | homedir was set. */ | |
c906108c SS |
522 | } |
523 | ||
524 | /* Now perform all the actions indicated by the arguments. */ | |
525 | if (cdarg != NULL) | |
526 | { | |
11cf8741 | 527 | catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL); |
c906108c | 528 | } |
c906108c SS |
529 | |
530 | for (i = 0; i < ndir; i++) | |
11cf8741 | 531 | catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL); |
c5aa993b | 532 | free ((PTR) dirarg); |
c906108c SS |
533 | |
534 | if (execarg != NULL | |
535 | && symarg != NULL | |
536 | && STREQ (execarg, symarg)) | |
537 | { | |
11cf8741 JM |
538 | /* The exec file and the symbol-file are the same. If we can't |
539 | open it, better only print one error message. | |
540 | catch_command_errors returns non-zero on success! */ | |
541 | if (catch_command_errors (exec_file_command, execarg, !batch, RETURN_MASK_ALL)) | |
542 | catch_command_errors (symbol_file_command, symarg, 0, RETURN_MASK_ALL); | |
c906108c SS |
543 | } |
544 | else | |
545 | { | |
546 | if (execarg != NULL) | |
11cf8741 | 547 | catch_command_errors (exec_file_command, execarg, !batch, RETURN_MASK_ALL); |
c906108c | 548 | if (symarg != NULL) |
11cf8741 | 549 | catch_command_errors (symbol_file_command, symarg, 0, RETURN_MASK_ALL); |
c906108c | 550 | } |
c906108c SS |
551 | |
552 | /* After the symbol file has been read, print a newline to get us | |
553 | beyond the copyright line... But errors should still set off | |
554 | the error message with a (single) blank line. */ | |
555 | if (!quiet) | |
556 | printf_filtered ("\n"); | |
557 | error_pre_print = "\n"; | |
558 | quit_pre_print = error_pre_print; | |
559 | warning_pre_print = "\nwarning: "; | |
560 | ||
561 | if (corearg != NULL) | |
562 | { | |
11cf8741 JM |
563 | if (catch_command_errors (core_file_command, corearg, !batch, RETURN_MASK_ALL) == 0) |
564 | { | |
565 | /* See if the core file is really a PID. */ | |
566 | if (isdigit (corearg[0])) | |
567 | catch_command_errors (attach_command, corearg, !batch, RETURN_MASK_ALL); | |
568 | } | |
c906108c | 569 | } |
c906108c SS |
570 | |
571 | if (ttyarg != NULL) | |
11cf8741 | 572 | catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL); |
c906108c SS |
573 | |
574 | #ifdef ADDITIONAL_OPTION_HANDLER | |
575 | ADDITIONAL_OPTION_HANDLER; | |
576 | #endif | |
577 | ||
578 | /* Error messages should no longer be distinguished with extra output. */ | |
579 | error_pre_print = NULL; | |
580 | quit_pre_print = NULL; | |
581 | warning_pre_print = "warning: "; | |
582 | ||
583 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
584 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
c5aa993b | 585 | |
c906108c SS |
586 | if (!homedir |
587 | || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat))) | |
588 | if (!inhibit_gdbinit) | |
589 | { | |
11cf8741 | 590 | catch_command_errors (source_command, gdbinit, 0, RETURN_MASK_ALL); |
c906108c | 591 | } |
c906108c SS |
592 | |
593 | for (i = 0; i < ncmd; i++) | |
594 | { | |
11cf8741 JM |
595 | #if 0 |
596 | /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that | |
597 | expanded into a call to setjmp(). */ | |
598 | if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */ | |
c906108c | 599 | { |
b83266a0 SS |
600 | /* NOTE: I am commenting this out, because it is not clear |
601 | where this feature is used. It is very old and | |
c5aa993b | 602 | undocumented. ezannoni: 1999-05-04 */ |
b83266a0 | 603 | #if 0 |
c906108c SS |
604 | if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0') |
605 | read_command_file (stdin); | |
606 | else | |
b83266a0 | 607 | #endif |
c906108c SS |
608 | source_command (cmdarg[i], !batch); |
609 | do_cleanups (ALL_CLEANUPS); | |
610 | } | |
11cf8741 JM |
611 | #endif |
612 | catch_command_errors (source_command, cmdarg[i], !batch, RETURN_MASK_ALL); | |
c906108c | 613 | } |
c5aa993b | 614 | free ((PTR) cmdarg); |
c906108c SS |
615 | |
616 | /* Read in the old history after all the command files have been read. */ | |
c5aa993b | 617 | init_history (); |
c906108c SS |
618 | |
619 | if (batch) | |
620 | { | |
621 | /* We have hit the end of the batch file. */ | |
622 | exit (0); | |
623 | } | |
624 | ||
625 | /* Do any host- or target-specific hacks. This is used for i960 targets | |
626 | to force the user to set a nindy target and spec its parameters. */ | |
627 | ||
628 | #ifdef BEFORE_MAIN_LOOP_HOOK | |
629 | BEFORE_MAIN_LOOP_HOOK; | |
630 | #endif | |
631 | ||
632 | END_PROGRESS (argv[0]); | |
633 | ||
634 | /* Show time and/or space usage. */ | |
635 | ||
636 | if (display_time) | |
637 | { | |
638 | long init_time = get_run_time () - time_at_startup; | |
639 | ||
640 | printf_unfiltered ("Startup time: %ld.%06ld\n", | |
641 | init_time / 1000000, init_time % 1000000); | |
642 | } | |
643 | ||
644 | if (display_space) | |
645 | { | |
646 | #ifdef HAVE_SBRK | |
647 | extern char **environ; | |
648 | char *lim = (char *) sbrk (0); | |
649 | ||
650 | printf_unfiltered ("Startup size: data size %ld\n", | |
651 | (long) (lim - (char *) &environ)); | |
652 | #endif | |
653 | } | |
654 | ||
655 | /* The default command loop. | |
656 | The WIN32 Gui calls this main to set up gdb's state, and | |
657 | has its own command loop. */ | |
658 | #if !defined _WIN32 || defined __GNUC__ | |
11cf8741 JM |
659 | /* GUIs generally have their own command loop, mainloop, or |
660 | whatever. This is a good place to gain control because many | |
661 | error conditions will end up here via longjmp(). */ | |
662 | #if 0 | |
663 | /* FIXME: cagney/1999-11-06: The original main loop was like: */ | |
c906108c SS |
664 | while (1) |
665 | { | |
666 | if (!SET_TOP_LEVEL ()) | |
667 | { | |
c5aa993b | 668 | do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */ |
c906108c SS |
669 | /* GUIs generally have their own command loop, mainloop, or whatever. |
670 | This is a good place to gain control because many error | |
671 | conditions will end up here via longjmp(). */ | |
672 | if (command_loop_hook) | |
673 | command_loop_hook (); | |
674 | else | |
675 | command_loop (); | |
c5aa993b | 676 | quit_command ((char *) 0, instream == stdin); |
c906108c SS |
677 | } |
678 | } | |
11cf8741 JM |
679 | /* NOTE: If the command_loop() returned normally, the loop would |
680 | attempt to exit by calling the function quit_command(). That | |
681 | function would either call exit() or throw an error returning | |
682 | control to SET_TOP_LEVEL. */ | |
683 | /* NOTE: The function do_cleanups() was called once each time round | |
684 | the loop. The usefulness of the call isn't clear. If an error | |
685 | was thrown, everything would have already been cleaned up. If | |
686 | command_loop() returned normally and quit_command() was called, | |
687 | either exit() or error() (again cleaning up) would be called. */ | |
688 | #endif | |
689 | /* NOTE: cagney/1999-11-07: There is probably no reason for not | |
690 | moving this loop and the code found in captured_command_loop() | |
691 | into the command_loop() proper. The main thing holding back that | |
692 | change - SET_TOP_LEVEL() - has been eliminated. */ | |
693 | while (1) | |
694 | { | |
695 | catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); | |
696 | } | |
c906108c | 697 | #endif |
11cf8741 JM |
698 | /* No exit -- exit is through quit_command. */ |
699 | } | |
c906108c | 700 | |
11cf8741 JM |
701 | int |
702 | main (int argc, char **argv) | |
703 | { | |
11cf8741 JM |
704 | struct captured_main_args args; |
705 | args.argc = argc; | |
706 | args.argv = argv; | |
707 | catch_errors (captured_main, &args, "", RETURN_MASK_ALL); | |
708 | return 0; | |
c906108c SS |
709 | } |
710 | ||
11cf8741 | 711 | |
c906108c SS |
712 | /* Don't use *_filtered for printing help. We don't want to prompt |
713 | for continue no matter how small the screen or how much we're going | |
714 | to print. */ | |
715 | ||
716 | static void | |
717 | print_gdb_help (stream) | |
c5aa993b | 718 | GDB_FILE *stream; |
c906108c | 719 | { |
c5aa993b | 720 | fputs_unfiltered ("\ |
c906108c SS |
721 | This is the GNU debugger. Usage:\n\n\ |
722 | gdb [options] [executable-file [core-file or process-id]]\n\n\ | |
723 | Options:\n\n\ | |
0f71a2f6 | 724 | ", stream); |
c5aa993b | 725 | fputs_unfiltered ("\ |
0f71a2f6 | 726 | --[no]async Enable (disable) asynchronous version of CLI\n\ |
c906108c | 727 | ", stream); |
c5aa993b | 728 | fputs_unfiltered ("\ |
c906108c SS |
729 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ |
730 | --batch Exit after processing options.\n\ | |
731 | --cd=DIR Change current directory to DIR.\n\ | |
732 | --command=FILE Execute GDB commands from FILE.\n\ | |
733 | --core=COREFILE Analyze the core dump COREFILE.\n\ | |
734 | ", stream); | |
c5aa993b | 735 | fputs_unfiltered ("\ |
c906108c SS |
736 | --dbx DBX compatibility mode.\n\ |
737 | --directory=DIR Search for source files in DIR.\n\ | |
738 | --epoch Output information used by epoch emacs-GDB interface.\n\ | |
739 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
740 | --fullname Output information used by emacs-GDB interface.\n\ | |
741 | --help Print this message.\n\ | |
742 | ", stream); | |
c5aa993b | 743 | fputs_unfiltered ("\ |
c906108c SS |
744 | --mapped Use mapped symbol files if supported on this system.\n\ |
745 | --nw Do not use a window interface.\n\ | |
96baa820 JM |
746 | --nx Do not read ", stream); |
747 | fputs_unfiltered (gdbinit, stream); | |
748 | fputs_unfiltered (" file.\n\ | |
c906108c SS |
749 | --quiet Do not print version number on startup.\n\ |
750 | --readnow Fully read symbol files on first access.\n\ | |
751 | ", stream); | |
c5aa993b | 752 | fputs_unfiltered ("\ |
c906108c SS |
753 | --se=FILE Use FILE as symbol file and executable file.\n\ |
754 | --symbols=SYMFILE Read symbols from SYMFILE.\n\ | |
755 | --tty=TTY Use TTY for input/output by the program being debugged.\n\ | |
756 | ", stream); | |
757 | #if defined(TUI) | |
c5aa993b | 758 | fputs_unfiltered ("\ |
c906108c SS |
759 | --tui Use a terminal user interface.\n\ |
760 | ", stream); | |
761 | #endif | |
c5aa993b | 762 | fputs_unfiltered ("\ |
c906108c SS |
763 | --version Print version information and then exit.\n\ |
764 | -w Use a window interface.\n\ | |
765 | --write Set writing into executable and core files.\n\ | |
766 | --xdb XDB compatibility mode.\n\ | |
767 | ", stream); | |
768 | #ifdef ADDITIONAL_OPTION_HELP | |
c5aa993b | 769 | fputs_unfiltered (ADDITIONAL_OPTION_HELP, stream); |
c906108c | 770 | #endif |
c5aa993b | 771 | fputs_unfiltered ("\n\ |
c906108c SS |
772 | For more information, type \"help\" from within GDB, or consult the\n\ |
773 | GDB manual (available as on-line info or a printed manual).\n\ | |
2df3850c | 774 | Report bugs to \"bug-gdb@gnu.org\".\ |
c906108c SS |
775 | ", stream); |
776 | } |