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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" |
da59e081 JM |
35 | #if defined (TUI) || defined (GDBTK) |
36 | /* FIXME: cagney/2000-01-31: This #include is to allow older code such | |
37 | as that found in the TUI to continue to build. */ | |
38 | #include "tui/tui-file.h" | |
39 | #endif | |
c906108c | 40 | |
c906108c SS |
41 | /* If nonzero, display time usage both at startup and for each command. */ |
42 | ||
43 | int display_time; | |
44 | ||
45 | /* If nonzero, display space usage both at startup and for each command. */ | |
46 | ||
47 | int display_space; | |
48 | ||
cd0fc7c3 | 49 | /* Whether this is the async version or not. The async version is |
c5aa993b JM |
50 | invoked on the command line with the -nw --async options. In this |
51 | version, the usual command_loop is substituted by and event loop which | |
52 | processes UI events asynchronously. */ | |
6426a772 | 53 | int event_loop_p = 1; |
cd0fc7c3 | 54 | |
c906108c SS |
55 | /* Whether this is the command line version or not */ |
56 | int tui_version = 0; | |
57 | ||
58 | /* Whether xdb commands will be handled */ | |
59 | int xdb_commands = 0; | |
60 | ||
61 | /* Whether dbx commands will be handled */ | |
62 | int dbx_commands = 0; | |
63 | ||
d9fcf2fb JM |
64 | struct ui_file *gdb_stdout; |
65 | struct ui_file *gdb_stderr; | |
66 | struct ui_file *gdb_stdlog; | |
67 | struct ui_file *gdb_stdtarg; | |
c906108c | 68 | |
2acceee2 JM |
69 | /* Used to initialize error() - defined in utils.c */ |
70 | ||
71 | extern void error_init (void); | |
72 | ||
c906108c SS |
73 | /* Whether to enable writing into executable and core files */ |
74 | extern int write_files; | |
75 | ||
d9fcf2fb | 76 | static void print_gdb_help (struct ui_file *); |
c906108c SS |
77 | |
78 | /* These two are used to set the external editor commands when gdb is farming | |
79 | out files to be edited by another program. */ | |
80 | ||
81 | extern int enable_external_editor; | |
c5aa993b | 82 | extern char *external_editor_command; |
c906108c SS |
83 | |
84 | #ifdef __CYGWIN__ | |
c5aa993b JM |
85 | #include <windows.h> /* for MAX_PATH */ |
86 | #include <sys/cygwin.h> /* for cygwin32_conv_to_posix_path */ | |
c906108c SS |
87 | #endif |
88 | ||
11cf8741 JM |
89 | /* Call command_loop. If it happens to return, pass that through as a |
90 | non-zero return status. */ | |
91 | ||
92 | static int | |
93 | captured_command_loop (void *data) | |
c906108c | 94 | { |
11cf8741 JM |
95 | if (command_loop_hook == NULL) |
96 | command_loop (); | |
97 | else | |
98 | command_loop_hook (); | |
99 | /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton | |
100 | would clean things up (restoring the cleanup chain) to the state | |
101 | they were just prior to the call. Technically, this means that | |
102 | the do_cleanups() below is redundant. Unfortunatly, many FUNC's | |
103 | are not that well behaved. do_cleanups should either be replaced | |
104 | with a do_cleanups call (to cover the problem) or an assertion | |
105 | check to detect bad FUNCs code. */ | |
106 | do_cleanups (ALL_CLEANUPS); | |
107 | /* If the command_loop returned, normally (rather than threw an | |
108 | error) we try to quit. If the quit is aborted, catch_errors() | |
109 | which called this catch the signal and restart the command | |
110 | loop. */ | |
111 | quit_command (NULL, instream == stdin); | |
112 | return 1; | |
113 | } | |
114 | ||
115 | struct captured_main_args | |
116 | { | |
117 | int argc; | |
118 | char **argv; | |
119 | }; | |
120 | ||
121 | static int | |
122 | captured_main (void *data) | |
123 | { | |
124 | struct captured_main_args *context = data; | |
125 | int argc = context->argc; | |
126 | char **argv = context->argv; | |
c906108c SS |
127 | int count; |
128 | static int quiet = 0; | |
129 | static int batch = 0; | |
130 | ||
131 | /* Pointers to various arguments from command line. */ | |
132 | char *symarg = NULL; | |
133 | char *execarg = NULL; | |
134 | char *corearg = NULL; | |
135 | char *cdarg = NULL; | |
136 | char *ttyarg = NULL; | |
137 | ||
138 | /* These are static so that we can take their address in an initializer. */ | |
139 | static int print_help; | |
140 | static int print_version; | |
141 | ||
142 | /* Pointers to all arguments of --command option. */ | |
143 | char **cmdarg; | |
144 | /* Allocated size of cmdarg. */ | |
145 | int cmdsize; | |
146 | /* Number of elements of cmdarg used. */ | |
147 | int ncmd; | |
148 | ||
149 | /* Indices of all arguments of --directory option. */ | |
150 | char **dirarg; | |
151 | /* Allocated size. */ | |
152 | int dirsize; | |
153 | /* Number of elements used. */ | |
154 | int ndir; | |
c5aa993b | 155 | |
c906108c SS |
156 | struct stat homebuf, cwdbuf; |
157 | char *homedir, *homeinit; | |
158 | ||
159 | register int i; | |
160 | ||
161 | long time_at_startup = get_run_time (); | |
162 | ||
c906108c SS |
163 | START_PROGRESS (argv[0], 0); |
164 | ||
165 | #ifdef MPW | |
166 | /* Do all Mac-specific setup. */ | |
167 | mac_init (); | |
168 | #endif /* MPW */ | |
169 | ||
170 | /* This needs to happen before the first use of malloc. */ | |
171 | init_malloc ((PTR) NULL); | |
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 | #if defined (TUI) || defined (GDBTK) |
195 | /* Older code uses the tui_file and fputs_unfiltered_hook(). It | |
d9fcf2fb | 196 | should be using a customized UI_FILE object and re-initializing |
da59e081 | 197 | within its own _initialize function. */ |
ac9a91a7 JM |
198 | gdb_stdout = tui_fileopen (stdout); |
199 | gdb_stderr = tui_fileopen (stderr); | |
c5aa993b JM |
200 | gdb_stdlog = gdb_stdout; /* for moment */ |
201 | gdb_stdtarg = gdb_stderr; /* for moment */ | |
da59e081 JM |
202 | #else |
203 | gdb_stdout = stdio_fileopen (stdout); | |
204 | gdb_stderr = stdio_fileopen (stderr); | |
205 | gdb_stdlog = gdb_stderr; /* for moment */ | |
206 | gdb_stdtarg = gdb_stderr; /* for moment */ | |
ac9a91a7 | 207 | #endif |
c906108c | 208 | |
2acceee2 JM |
209 | /* initialize error() */ |
210 | error_init (); | |
211 | ||
c906108c SS |
212 | /* Parse arguments and options. */ |
213 | { | |
214 | int c; | |
215 | /* When var field is 0, use flag field to record the equivalent | |
216 | short option (or arbitrary numbers starting at 10 for those | |
217 | with no equivalent). */ | |
218 | static struct option long_options[] = | |
c5aa993b | 219 | { |
6426a772 JM |
220 | {"async", no_argument, &event_loop_p, 1}, |
221 | {"noasync", no_argument, &event_loop_p, 0}, | |
c906108c | 222 | #if defined(TUI) |
c5aa993b | 223 | {"tui", no_argument, &tui_version, 1}, |
c906108c | 224 | #endif |
c5aa993b JM |
225 | {"xdb", no_argument, &xdb_commands, 1}, |
226 | {"dbx", no_argument, &dbx_commands, 1}, | |
227 | {"readnow", no_argument, &readnow_symbol_files, 1}, | |
228 | {"r", no_argument, &readnow_symbol_files, 1}, | |
229 | {"mapped", no_argument, &mapped_symbol_files, 1}, | |
230 | {"m", no_argument, &mapped_symbol_files, 1}, | |
231 | {"quiet", no_argument, &quiet, 1}, | |
232 | {"q", no_argument, &quiet, 1}, | |
233 | {"silent", no_argument, &quiet, 1}, | |
234 | {"nx", no_argument, &inhibit_gdbinit, 1}, | |
235 | {"n", no_argument, &inhibit_gdbinit, 1}, | |
236 | {"batch", no_argument, &batch, 1}, | |
237 | {"epoch", no_argument, &epoch_interface, 1}, | |
238 | ||
239 | /* This is a synonym for "--annotate=1". --annotate is now preferred, | |
240 | but keep this here for a long time because people will be running | |
241 | emacses which use --fullname. */ | |
242 | {"fullname", no_argument, 0, 'f'}, | |
243 | {"f", no_argument, 0, 'f'}, | |
244 | ||
245 | {"annotate", required_argument, 0, 12}, | |
246 | {"help", no_argument, &print_help, 1}, | |
247 | {"se", required_argument, 0, 10}, | |
248 | {"symbols", required_argument, 0, 's'}, | |
249 | {"s", required_argument, 0, 's'}, | |
250 | {"exec", required_argument, 0, 'e'}, | |
251 | {"e", required_argument, 0, 'e'}, | |
252 | {"core", required_argument, 0, 'c'}, | |
253 | {"c", required_argument, 0, 'c'}, | |
254 | {"command", required_argument, 0, 'x'}, | |
255 | {"version", no_argument, &print_version, 1}, | |
256 | {"x", required_argument, 0, 'x'}, | |
257 | {"directory", required_argument, 0, 'd'}, | |
c4093a6a | 258 | {"d", required_argument, 0, 'd'}, |
c5aa993b JM |
259 | {"cd", required_argument, 0, 11}, |
260 | {"tty", required_argument, 0, 't'}, | |
261 | {"baud", required_argument, 0, 'b'}, | |
262 | {"b", required_argument, 0, 'b'}, | |
263 | {"nw", no_argument, &use_windows, 0}, | |
264 | {"nowindows", no_argument, &use_windows, 0}, | |
265 | {"w", no_argument, &use_windows, 1}, | |
266 | {"windows", no_argument, &use_windows, 1}, | |
267 | {"statistics", no_argument, 0, 13}, | |
268 | {"write", no_argument, &write_files, 1}, | |
c906108c SS |
269 | /* Allow machine descriptions to add more options... */ |
270 | #ifdef ADDITIONAL_OPTIONS | |
c5aa993b | 271 | ADDITIONAL_OPTIONS |
c906108c | 272 | #endif |
c5aa993b JM |
273 | {0, no_argument, 0, 0} |
274 | }; | |
c906108c SS |
275 | |
276 | while (1) | |
277 | { | |
278 | int option_index; | |
279 | ||
280 | c = getopt_long_only (argc, argv, "", | |
281 | long_options, &option_index); | |
282 | if (c == EOF) | |
283 | break; | |
284 | ||
285 | /* Long option that takes an argument. */ | |
286 | if (c == 0 && long_options[option_index].flag == 0) | |
287 | c = long_options[option_index].val; | |
288 | ||
289 | switch (c) | |
290 | { | |
291 | case 0: | |
292 | /* Long option that just sets a flag. */ | |
293 | break; | |
294 | case 10: | |
295 | symarg = optarg; | |
296 | execarg = optarg; | |
297 | break; | |
298 | case 11: | |
299 | cdarg = optarg; | |
300 | break; | |
301 | case 12: | |
302 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ | |
303 | annotation_level = atoi (optarg); | |
304 | break; | |
305 | case 13: | |
306 | /* Enable the display of both time and space usage. */ | |
307 | display_time = 1; | |
308 | display_space = 1; | |
309 | break; | |
310 | case 'f': | |
311 | annotation_level = 1; | |
312 | /* We have probably been invoked from emacs. Disable window interface. */ | |
313 | use_windows = 0; | |
314 | break; | |
315 | case 's': | |
316 | symarg = optarg; | |
317 | break; | |
318 | case 'e': | |
319 | execarg = optarg; | |
320 | break; | |
321 | case 'c': | |
322 | corearg = optarg; | |
323 | break; | |
324 | case 'x': | |
325 | cmdarg[ncmd++] = optarg; | |
326 | if (ncmd >= cmdsize) | |
327 | { | |
328 | cmdsize *= 2; | |
c5aa993b | 329 | cmdarg = (char **) xrealloc ((char *) cmdarg, |
c906108c SS |
330 | cmdsize * sizeof (*cmdarg)); |
331 | } | |
332 | break; | |
333 | case 'd': | |
334 | dirarg[ndir++] = optarg; | |
335 | if (ndir >= dirsize) | |
336 | { | |
337 | dirsize *= 2; | |
c5aa993b | 338 | dirarg = (char **) xrealloc ((char *) dirarg, |
c906108c SS |
339 | dirsize * sizeof (*dirarg)); |
340 | } | |
341 | break; | |
342 | case 't': | |
343 | ttyarg = optarg; | |
344 | break; | |
345 | case 'q': | |
346 | quiet = 1; | |
347 | break; | |
348 | case 'b': | |
349 | { | |
350 | int i; | |
351 | char *p; | |
352 | ||
353 | i = strtol (optarg, &p, 0); | |
354 | if (i == 0 && p == optarg) | |
355 | ||
356 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 357 | current_target) until after initialize_all_files(). */ |
c906108c SS |
358 | |
359 | fprintf_unfiltered | |
360 | (gdb_stderr, | |
361 | "warning: could not set baud rate to `%s'.\n", optarg); | |
362 | else | |
363 | baud_rate = i; | |
364 | } | |
365 | case 'l': | |
366 | { | |
367 | int i; | |
368 | char *p; | |
369 | ||
370 | i = strtol (optarg, &p, 0); | |
371 | if (i == 0 && p == optarg) | |
372 | ||
373 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 374 | current_target) until after initialize_all_files(). */ |
c906108c SS |
375 | |
376 | fprintf_unfiltered | |
377 | (gdb_stderr, | |
c5aa993b | 378 | "warning: could not set timeout limit to `%s'.\n", optarg); |
c906108c SS |
379 | else |
380 | remote_timeout = i; | |
381 | } | |
382 | break; | |
383 | ||
384 | #ifdef ADDITIONAL_OPTION_CASES | |
c5aa993b | 385 | ADDITIONAL_OPTION_CASES |
c906108c SS |
386 | #endif |
387 | case '?': | |
388 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b JM |
389 | "Use `%s --help' for a complete list of options.\n", |
390 | argv[0]); | |
c906108c SS |
391 | exit (1); |
392 | } | |
393 | } | |
394 | ||
395 | /* If --help or --version, disable window interface. */ | |
396 | if (print_help || print_version) | |
397 | { | |
398 | use_windows = 0; | |
399 | #ifdef TUI | |
400 | /* Disable the TUI as well. */ | |
401 | tui_version = 0; | |
402 | #endif | |
403 | } | |
404 | ||
405 | #ifdef TUI | |
406 | /* An explicit --tui flag overrides the default UI, which is the | |
407 | window system. */ | |
408 | if (tui_version) | |
409 | use_windows = 0; | |
c5aa993b | 410 | #endif |
c906108c SS |
411 | |
412 | /* OK, that's all the options. The other arguments are filenames. */ | |
413 | count = 0; | |
414 | for (; optind < argc; optind++) | |
415 | switch (++count) | |
416 | { | |
417 | case 1: | |
418 | symarg = argv[optind]; | |
419 | execarg = argv[optind]; | |
420 | break; | |
421 | case 2: | |
422 | corearg = argv[optind]; | |
423 | break; | |
424 | case 3: | |
425 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b JM |
426 | "Excess command line arguments ignored. (%s%s)\n", |
427 | argv[optind], (optind == argc - 1) ? "" : " ..."); | |
c906108c SS |
428 | break; |
429 | } | |
430 | if (batch) | |
431 | quiet = 1; | |
432 | } | |
433 | ||
434 | #if defined(TUI) | |
0f71a2f6 | 435 | /* Should this be moved to tui-top.c:_initialize_tui()? */ |
c906108c SS |
436 | if (tui_version) |
437 | init_ui_hook = tuiInit; | |
438 | #endif | |
0f71a2f6 JM |
439 | |
440 | /* Initialize all files. Give the interpreter a chance to take | |
441 | control of the console via the init_ui_hook()) */ | |
c906108c SS |
442 | gdb_init (argv[0]); |
443 | ||
444 | /* Do these (and anything which might call wrap_here or *_filtered) | |
445 | after initialize_all_files. */ | |
446 | if (print_version) | |
447 | { | |
448 | print_gdb_version (gdb_stdout); | |
449 | wrap_here (""); | |
450 | printf_filtered ("\n"); | |
451 | exit (0); | |
452 | } | |
453 | ||
454 | if (print_help) | |
455 | { | |
456 | print_gdb_help (gdb_stdout); | |
457 | fputs_unfiltered ("\n", gdb_stdout); | |
458 | exit (0); | |
459 | } | |
460 | ||
461 | if (!quiet) | |
462 | { | |
463 | /* Print all the junk at the top, with trailing "..." if we are about | |
c5aa993b | 464 | to read a symbol file (possibly slowly). */ |
c906108c SS |
465 | print_gdb_version (gdb_stdout); |
466 | if (symarg) | |
467 | printf_filtered (".."); | |
c5aa993b JM |
468 | wrap_here (""); |
469 | gdb_flush (gdb_stdout); /* Force to screen during slow operations */ | |
c906108c SS |
470 | } |
471 | ||
472 | error_pre_print = "\n\n"; | |
473 | quit_pre_print = error_pre_print; | |
474 | ||
475 | /* We may get more than one warning, don't double space all of them... */ | |
476 | warning_pre_print = "\nwarning: "; | |
477 | ||
478 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done | |
479 | *before* all the command line arguments are processed; it sets | |
480 | global parameters, which are independent of what file you are | |
481 | debugging or what directory you are in. */ | |
482 | #ifdef __CYGWIN32__ | |
483 | { | |
c5aa993b JM |
484 | char *tmp = getenv ("HOME"); |
485 | ||
c906108c SS |
486 | if (tmp != NULL) |
487 | { | |
c5aa993b JM |
488 | homedir = (char *) alloca (MAX_PATH + 1); |
489 | cygwin32_conv_to_posix_path (tmp, homedir); | |
c906108c SS |
490 | } |
491 | else | |
492 | homedir = NULL; | |
493 | } | |
494 | #else | |
c5aa993b | 495 | homedir = getenv ("HOME"); |
c906108c SS |
496 | #endif |
497 | if (homedir) | |
498 | { | |
499 | homeinit = (char *) alloca (strlen (homedir) + | |
500 | strlen (gdbinit) + 10); | |
501 | strcpy (homeinit, homedir); | |
502 | strcat (homeinit, "/"); | |
503 | strcat (homeinit, gdbinit); | |
504 | ||
505 | if (!inhibit_gdbinit) | |
506 | { | |
11cf8741 | 507 | catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL); |
c906108c | 508 | } |
c906108c SS |
509 | |
510 | /* Do stats; no need to do them elsewhere since we'll only | |
c5aa993b JM |
511 | need them if homedir is set. Make sure that they are |
512 | zero in case one of them fails (this guarantees that they | |
513 | won't match if either exists). */ | |
514 | ||
c906108c SS |
515 | memset (&homebuf, 0, sizeof (struct stat)); |
516 | memset (&cwdbuf, 0, sizeof (struct stat)); | |
c5aa993b | 517 | |
c906108c | 518 | stat (homeinit, &homebuf); |
c5aa993b JM |
519 | stat (gdbinit, &cwdbuf); /* We'll only need this if |
520 | homedir was set. */ | |
c906108c SS |
521 | } |
522 | ||
523 | /* Now perform all the actions indicated by the arguments. */ | |
524 | if (cdarg != NULL) | |
525 | { | |
11cf8741 | 526 | catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL); |
c906108c | 527 | } |
c906108c SS |
528 | |
529 | for (i = 0; i < ndir; i++) | |
11cf8741 | 530 | catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL); |
c5aa993b | 531 | free ((PTR) dirarg); |
c906108c SS |
532 | |
533 | if (execarg != NULL | |
534 | && symarg != NULL | |
535 | && STREQ (execarg, symarg)) | |
536 | { | |
11cf8741 JM |
537 | /* The exec file and the symbol-file are the same. If we can't |
538 | open it, better only print one error message. | |
539 | catch_command_errors returns non-zero on success! */ | |
540 | if (catch_command_errors (exec_file_command, execarg, !batch, RETURN_MASK_ALL)) | |
541 | catch_command_errors (symbol_file_command, symarg, 0, RETURN_MASK_ALL); | |
c906108c SS |
542 | } |
543 | else | |
544 | { | |
545 | if (execarg != NULL) | |
11cf8741 | 546 | catch_command_errors (exec_file_command, execarg, !batch, RETURN_MASK_ALL); |
c906108c | 547 | if (symarg != NULL) |
11cf8741 | 548 | catch_command_errors (symbol_file_command, symarg, 0, RETURN_MASK_ALL); |
c906108c | 549 | } |
c906108c SS |
550 | |
551 | /* After the symbol file has been read, print a newline to get us | |
552 | beyond the copyright line... But errors should still set off | |
553 | the error message with a (single) blank line. */ | |
554 | if (!quiet) | |
555 | printf_filtered ("\n"); | |
556 | error_pre_print = "\n"; | |
557 | quit_pre_print = error_pre_print; | |
558 | warning_pre_print = "\nwarning: "; | |
559 | ||
560 | if (corearg != NULL) | |
561 | { | |
11cf8741 JM |
562 | if (catch_command_errors (core_file_command, corearg, !batch, RETURN_MASK_ALL) == 0) |
563 | { | |
564 | /* See if the core file is really a PID. */ | |
565 | if (isdigit (corearg[0])) | |
566 | catch_command_errors (attach_command, corearg, !batch, RETURN_MASK_ALL); | |
567 | } | |
c906108c | 568 | } |
c906108c SS |
569 | |
570 | if (ttyarg != NULL) | |
11cf8741 | 571 | catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL); |
c906108c SS |
572 | |
573 | #ifdef ADDITIONAL_OPTION_HANDLER | |
574 | ADDITIONAL_OPTION_HANDLER; | |
575 | #endif | |
576 | ||
577 | /* Error messages should no longer be distinguished with extra output. */ | |
578 | error_pre_print = NULL; | |
579 | quit_pre_print = NULL; | |
580 | warning_pre_print = "warning: "; | |
581 | ||
582 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
583 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
c5aa993b | 584 | |
c906108c SS |
585 | if (!homedir |
586 | || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat))) | |
587 | if (!inhibit_gdbinit) | |
588 | { | |
11cf8741 | 589 | catch_command_errors (source_command, gdbinit, 0, RETURN_MASK_ALL); |
c906108c | 590 | } |
c906108c SS |
591 | |
592 | for (i = 0; i < ncmd; i++) | |
593 | { | |
11cf8741 JM |
594 | #if 0 |
595 | /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that | |
596 | expanded into a call to setjmp(). */ | |
597 | if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */ | |
c906108c | 598 | { |
b83266a0 SS |
599 | /* NOTE: I am commenting this out, because it is not clear |
600 | where this feature is used. It is very old and | |
c5aa993b | 601 | undocumented. ezannoni: 1999-05-04 */ |
b83266a0 | 602 | #if 0 |
c906108c SS |
603 | if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0') |
604 | read_command_file (stdin); | |
605 | else | |
b83266a0 | 606 | #endif |
c906108c SS |
607 | source_command (cmdarg[i], !batch); |
608 | do_cleanups (ALL_CLEANUPS); | |
609 | } | |
11cf8741 JM |
610 | #endif |
611 | catch_command_errors (source_command, cmdarg[i], !batch, RETURN_MASK_ALL); | |
c906108c | 612 | } |
c5aa993b | 613 | free ((PTR) cmdarg); |
c906108c SS |
614 | |
615 | /* Read in the old history after all the command files have been read. */ | |
c5aa993b | 616 | init_history (); |
c906108c SS |
617 | |
618 | if (batch) | |
619 | { | |
620 | /* We have hit the end of the batch file. */ | |
621 | exit (0); | |
622 | } | |
623 | ||
624 | /* Do any host- or target-specific hacks. This is used for i960 targets | |
625 | to force the user to set a nindy target and spec its parameters. */ | |
626 | ||
627 | #ifdef BEFORE_MAIN_LOOP_HOOK | |
628 | BEFORE_MAIN_LOOP_HOOK; | |
629 | #endif | |
630 | ||
631 | END_PROGRESS (argv[0]); | |
632 | ||
633 | /* Show time and/or space usage. */ | |
634 | ||
635 | if (display_time) | |
636 | { | |
637 | long init_time = get_run_time () - time_at_startup; | |
638 | ||
639 | printf_unfiltered ("Startup time: %ld.%06ld\n", | |
640 | init_time / 1000000, init_time % 1000000); | |
641 | } | |
642 | ||
643 | if (display_space) | |
644 | { | |
645 | #ifdef HAVE_SBRK | |
646 | extern char **environ; | |
647 | char *lim = (char *) sbrk (0); | |
648 | ||
649 | printf_unfiltered ("Startup size: data size %ld\n", | |
650 | (long) (lim - (char *) &environ)); | |
651 | #endif | |
652 | } | |
653 | ||
654 | /* The default command loop. | |
655 | The WIN32 Gui calls this main to set up gdb's state, and | |
656 | has its own command loop. */ | |
657 | #if !defined _WIN32 || defined __GNUC__ | |
11cf8741 JM |
658 | /* GUIs generally have their own command loop, mainloop, or |
659 | whatever. This is a good place to gain control because many | |
660 | error conditions will end up here via longjmp(). */ | |
661 | #if 0 | |
662 | /* FIXME: cagney/1999-11-06: The original main loop was like: */ | |
c906108c SS |
663 | while (1) |
664 | { | |
665 | if (!SET_TOP_LEVEL ()) | |
666 | { | |
c5aa993b | 667 | do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */ |
c906108c SS |
668 | /* GUIs generally have their own command loop, mainloop, or whatever. |
669 | This is a good place to gain control because many error | |
670 | conditions will end up here via longjmp(). */ | |
671 | if (command_loop_hook) | |
672 | command_loop_hook (); | |
673 | else | |
674 | command_loop (); | |
c5aa993b | 675 | quit_command ((char *) 0, instream == stdin); |
c906108c SS |
676 | } |
677 | } | |
11cf8741 JM |
678 | /* NOTE: If the command_loop() returned normally, the loop would |
679 | attempt to exit by calling the function quit_command(). That | |
680 | function would either call exit() or throw an error returning | |
681 | control to SET_TOP_LEVEL. */ | |
682 | /* NOTE: The function do_cleanups() was called once each time round | |
683 | the loop. The usefulness of the call isn't clear. If an error | |
684 | was thrown, everything would have already been cleaned up. If | |
685 | command_loop() returned normally and quit_command() was called, | |
686 | either exit() or error() (again cleaning up) would be called. */ | |
687 | #endif | |
688 | /* NOTE: cagney/1999-11-07: There is probably no reason for not | |
689 | moving this loop and the code found in captured_command_loop() | |
690 | into the command_loop() proper. The main thing holding back that | |
691 | change - SET_TOP_LEVEL() - has been eliminated. */ | |
692 | while (1) | |
693 | { | |
694 | catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); | |
695 | } | |
c906108c | 696 | #endif |
11cf8741 JM |
697 | /* No exit -- exit is through quit_command. */ |
698 | } | |
c906108c | 699 | |
11cf8741 JM |
700 | int |
701 | main (int argc, char **argv) | |
702 | { | |
11cf8741 JM |
703 | struct captured_main_args args; |
704 | args.argc = argc; | |
705 | args.argv = argv; | |
706 | catch_errors (captured_main, &args, "", RETURN_MASK_ALL); | |
707 | return 0; | |
c906108c SS |
708 | } |
709 | ||
11cf8741 | 710 | |
c906108c SS |
711 | /* Don't use *_filtered for printing help. We don't want to prompt |
712 | for continue no matter how small the screen or how much we're going | |
713 | to print. */ | |
714 | ||
715 | static void | |
d9fcf2fb | 716 | print_gdb_help (struct ui_file *stream) |
c906108c | 717 | { |
c5aa993b | 718 | fputs_unfiltered ("\ |
c906108c SS |
719 | This is the GNU debugger. Usage:\n\n\ |
720 | gdb [options] [executable-file [core-file or process-id]]\n\n\ | |
721 | Options:\n\n\ | |
0f71a2f6 | 722 | ", stream); |
c5aa993b | 723 | fputs_unfiltered ("\ |
0f71a2f6 | 724 | --[no]async Enable (disable) asynchronous version of CLI\n\ |
c906108c | 725 | ", stream); |
c5aa993b | 726 | fputs_unfiltered ("\ |
c906108c SS |
727 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ |
728 | --batch Exit after processing options.\n\ | |
729 | --cd=DIR Change current directory to DIR.\n\ | |
730 | --command=FILE Execute GDB commands from FILE.\n\ | |
731 | --core=COREFILE Analyze the core dump COREFILE.\n\ | |
732 | ", stream); | |
c5aa993b | 733 | fputs_unfiltered ("\ |
c906108c SS |
734 | --dbx DBX compatibility mode.\n\ |
735 | --directory=DIR Search for source files in DIR.\n\ | |
736 | --epoch Output information used by epoch emacs-GDB interface.\n\ | |
737 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
738 | --fullname Output information used by emacs-GDB interface.\n\ | |
739 | --help Print this message.\n\ | |
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 | } |