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 MH |
38 | |
39 | #if defined (TUI) | |
da59e081 JM |
40 | /* FIXME: cagney/2000-01-31: This #include is to allow older code such |
41 | as that found in the TUI to continue to build. */ | |
42 | #include "tui/tui-file.h" | |
43 | #endif | |
c906108c | 44 | |
c906108c SS |
45 | /* If nonzero, display time usage both at startup and for each command. */ |
46 | ||
47 | int display_time; | |
48 | ||
49 | /* If nonzero, display space usage both at startup and for each command. */ | |
50 | ||
51 | int display_space; | |
52 | ||
cd0fc7c3 | 53 | /* Whether this is the async version or not. The async version is |
c5aa993b JM |
54 | invoked on the command line with the -nw --async options. In this |
55 | version, the usual command_loop is substituted by and event loop which | |
56 | processes UI events asynchronously. */ | |
6426a772 | 57 | int event_loop_p = 1; |
cd0fc7c3 | 58 | |
fb40c209 AC |
59 | #ifdef UI_OUT |
60 | /* Has an interpreter been specified and if so, which. */ | |
61 | char *interpreter_p; | |
62 | #endif | |
63 | ||
c906108c SS |
64 | /* Whether this is the command line version or not */ |
65 | int tui_version = 0; | |
66 | ||
67 | /* Whether xdb commands will be handled */ | |
68 | int xdb_commands = 0; | |
69 | ||
70 | /* Whether dbx commands will be handled */ | |
71 | int dbx_commands = 0; | |
72 | ||
d9fcf2fb JM |
73 | struct ui_file *gdb_stdout; |
74 | struct ui_file *gdb_stderr; | |
75 | struct ui_file *gdb_stdlog; | |
76 | struct ui_file *gdb_stdtarg; | |
c906108c | 77 | |
2acceee2 JM |
78 | /* Used to initialize error() - defined in utils.c */ |
79 | ||
80 | extern void error_init (void); | |
81 | ||
c906108c SS |
82 | /* Whether to enable writing into executable and core files */ |
83 | extern int write_files; | |
84 | ||
d9fcf2fb | 85 | static void print_gdb_help (struct ui_file *); |
c906108c SS |
86 | |
87 | /* These two are used to set the external editor commands when gdb is farming | |
88 | out files to be edited by another program. */ | |
89 | ||
90 | extern int enable_external_editor; | |
c5aa993b | 91 | extern char *external_editor_command; |
c906108c | 92 | |
11cf8741 JM |
93 | /* Call command_loop. If it happens to return, pass that through as a |
94 | non-zero return status. */ | |
95 | ||
96 | static int | |
97 | captured_command_loop (void *data) | |
c906108c | 98 | { |
11cf8741 JM |
99 | if (command_loop_hook == NULL) |
100 | command_loop (); | |
101 | else | |
102 | command_loop_hook (); | |
103 | /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton | |
104 | would clean things up (restoring the cleanup chain) to the state | |
105 | they were just prior to the call. Technically, this means that | |
e26cc349 | 106 | the do_cleanups() below is redundant. Unfortunately, many FUNCs |
11cf8741 JM |
107 | are not that well behaved. do_cleanups should either be replaced |
108 | with a do_cleanups call (to cover the problem) or an assertion | |
109 | check to detect bad FUNCs code. */ | |
110 | do_cleanups (ALL_CLEANUPS); | |
111 | /* If the command_loop returned, normally (rather than threw an | |
112 | error) we try to quit. If the quit is aborted, catch_errors() | |
113 | which called this catch the signal and restart the command | |
114 | loop. */ | |
115 | quit_command (NULL, instream == stdin); | |
116 | return 1; | |
117 | } | |
118 | ||
119 | struct captured_main_args | |
120 | { | |
121 | int argc; | |
122 | char **argv; | |
123 | }; | |
124 | ||
125 | static int | |
126 | captured_main (void *data) | |
127 | { | |
128 | struct captured_main_args *context = data; | |
129 | int argc = context->argc; | |
130 | char **argv = context->argv; | |
c906108c SS |
131 | int count; |
132 | static int quiet = 0; | |
133 | static int batch = 0; | |
134 | ||
135 | /* Pointers to various arguments from command line. */ | |
136 | char *symarg = NULL; | |
137 | char *execarg = NULL; | |
138 | char *corearg = NULL; | |
139 | char *cdarg = NULL; | |
140 | char *ttyarg = NULL; | |
141 | ||
142 | /* These are static so that we can take their address in an initializer. */ | |
143 | static int print_help; | |
144 | static int print_version; | |
145 | ||
146 | /* Pointers to all arguments of --command option. */ | |
147 | char **cmdarg; | |
148 | /* Allocated size of cmdarg. */ | |
149 | int cmdsize; | |
150 | /* Number of elements of cmdarg used. */ | |
151 | int ncmd; | |
152 | ||
153 | /* Indices of all arguments of --directory option. */ | |
154 | char **dirarg; | |
155 | /* Allocated size. */ | |
156 | int dirsize; | |
157 | /* Number of elements used. */ | |
158 | int ndir; | |
c5aa993b | 159 | |
c906108c SS |
160 | struct stat homebuf, cwdbuf; |
161 | char *homedir, *homeinit; | |
162 | ||
163 | register int i; | |
164 | ||
165 | long time_at_startup = get_run_time (); | |
166 | ||
c906108c SS |
167 | START_PROGRESS (argv[0], 0); |
168 | ||
169 | #ifdef MPW | |
170 | /* Do all Mac-specific setup. */ | |
171 | mac_init (); | |
172 | #endif /* MPW */ | |
173 | ||
174 | /* This needs to happen before the first use of malloc. */ | |
175 | init_malloc ((PTR) NULL); | |
176 | ||
177 | #if defined (ALIGN_STACK_ON_STARTUP) | |
178 | i = (int) &count & 0x3; | |
179 | if (i != 0) | |
180 | alloca (4 - i); | |
181 | #endif | |
182 | ||
c906108c SS |
183 | cmdsize = 1; |
184 | cmdarg = (char **) xmalloc (cmdsize * sizeof (*cmdarg)); | |
185 | ncmd = 0; | |
186 | dirsize = 1; | |
187 | dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg)); | |
188 | ndir = 0; | |
189 | ||
190 | quit_flag = 0; | |
191 | line = (char *) xmalloc (linesize); | |
192 | line[0] = '\0'; /* Terminate saved (now empty) cmd line */ | |
193 | instream = stdin; | |
194 | ||
195 | getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
196 | current_directory = gdb_dirbuf; | |
197 | ||
6457bd47 | 198 | #if defined (TUI) |
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 | |
fb40c209 | 263 | #ifdef UI_OUT |
8b93c638 JM |
264 | {"ui", required_argument, 0, 'i'}, |
265 | {"interpreter", required_argument, 0, 'i'}, | |
266 | {"i", required_argument, 0, 'i'}, | |
fb40c209 | 267 | #endif |
c5aa993b | 268 | {"directory", required_argument, 0, 'd'}, |
c4093a6a | 269 | {"d", required_argument, 0, 'd'}, |
c5aa993b JM |
270 | {"cd", required_argument, 0, 11}, |
271 | {"tty", required_argument, 0, 't'}, | |
272 | {"baud", required_argument, 0, 'b'}, | |
273 | {"b", required_argument, 0, 'b'}, | |
274 | {"nw", no_argument, &use_windows, 0}, | |
275 | {"nowindows", no_argument, &use_windows, 0}, | |
276 | {"w", no_argument, &use_windows, 1}, | |
277 | {"windows", no_argument, &use_windows, 1}, | |
278 | {"statistics", no_argument, 0, 13}, | |
279 | {"write", no_argument, &write_files, 1}, | |
c906108c SS |
280 | /* Allow machine descriptions to add more options... */ |
281 | #ifdef ADDITIONAL_OPTIONS | |
c5aa993b | 282 | ADDITIONAL_OPTIONS |
c906108c | 283 | #endif |
c5aa993b JM |
284 | {0, no_argument, 0, 0} |
285 | }; | |
c906108c SS |
286 | |
287 | while (1) | |
288 | { | |
289 | int option_index; | |
290 | ||
291 | c = getopt_long_only (argc, argv, "", | |
292 | long_options, &option_index); | |
293 | if (c == EOF) | |
294 | break; | |
295 | ||
296 | /* Long option that takes an argument. */ | |
297 | if (c == 0 && long_options[option_index].flag == 0) | |
298 | c = long_options[option_index].val; | |
299 | ||
300 | switch (c) | |
301 | { | |
302 | case 0: | |
303 | /* Long option that just sets a flag. */ | |
304 | break; | |
305 | case 10: | |
306 | symarg = optarg; | |
307 | execarg = optarg; | |
308 | break; | |
309 | case 11: | |
310 | cdarg = optarg; | |
311 | break; | |
312 | case 12: | |
313 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ | |
314 | annotation_level = atoi (optarg); | |
315 | break; | |
316 | case 13: | |
317 | /* Enable the display of both time and space usage. */ | |
318 | display_time = 1; | |
319 | display_space = 1; | |
320 | break; | |
321 | case 'f': | |
322 | annotation_level = 1; | |
323 | /* We have probably been invoked from emacs. Disable window interface. */ | |
324 | use_windows = 0; | |
325 | break; | |
326 | case 's': | |
327 | symarg = optarg; | |
328 | break; | |
329 | case 'e': | |
330 | execarg = optarg; | |
331 | break; | |
332 | case 'c': | |
333 | corearg = optarg; | |
334 | break; | |
335 | case 'x': | |
336 | cmdarg[ncmd++] = optarg; | |
337 | if (ncmd >= cmdsize) | |
338 | { | |
339 | cmdsize *= 2; | |
c5aa993b | 340 | cmdarg = (char **) xrealloc ((char *) cmdarg, |
c906108c SS |
341 | cmdsize * sizeof (*cmdarg)); |
342 | } | |
343 | break; | |
3fc11d3e JM |
344 | #ifdef GDBTK |
345 | case 'z': | |
346 | { | |
a14ed312 | 347 | extern int gdbtk_test (char *); |
3fc11d3e JM |
348 | if (!gdbtk_test (optarg)) |
349 | { | |
350 | fprintf_unfiltered (gdb_stderr, "%s: unable to load tclcommand file \"%s\"", | |
351 | argv[0], optarg); | |
352 | exit (1); | |
353 | } | |
354 | break; | |
355 | } | |
356 | case 'y': | |
357 | { | |
358 | /* | |
359 | * This enables the edit/button in the main window, even | |
360 | * when IDE_ENABLED is set to false. In this case you must | |
361 | * use --tclcommand to specify a tcl/script to be called, | |
362 | * Tcl/Variable to store the edit/command is: | |
363 | * external_editor | |
364 | */ | |
365 | enable_external_editor = 1; | |
366 | break; | |
367 | } | |
368 | case 'w': | |
369 | { | |
370 | /* | |
371 | * if editor command is enabled, both flags are set | |
372 | */ | |
373 | enable_external_editor = 1; | |
374 | external_editor_command = xstrdup (optarg); | |
375 | break; | |
376 | } | |
377 | #endif /* GDBTK */ | |
fb40c209 AC |
378 | #ifdef UI_OUT |
379 | case 'i': | |
380 | interpreter_p = optarg; | |
381 | break; | |
382 | #endif | |
c906108c SS |
383 | case 'd': |
384 | dirarg[ndir++] = optarg; | |
385 | if (ndir >= dirsize) | |
386 | { | |
387 | dirsize *= 2; | |
c5aa993b | 388 | dirarg = (char **) xrealloc ((char *) dirarg, |
c906108c SS |
389 | dirsize * sizeof (*dirarg)); |
390 | } | |
391 | break; | |
392 | case 't': | |
393 | ttyarg = optarg; | |
394 | break; | |
395 | case 'q': | |
396 | quiet = 1; | |
397 | break; | |
398 | case 'b': | |
399 | { | |
400 | int i; | |
401 | char *p; | |
402 | ||
403 | i = strtol (optarg, &p, 0); | |
404 | if (i == 0 && p == optarg) | |
405 | ||
406 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 407 | current_target) until after initialize_all_files(). */ |
c906108c SS |
408 | |
409 | fprintf_unfiltered | |
410 | (gdb_stderr, | |
411 | "warning: could not set baud rate to `%s'.\n", optarg); | |
412 | else | |
413 | baud_rate = i; | |
414 | } | |
415 | case 'l': | |
416 | { | |
417 | int i; | |
418 | char *p; | |
419 | ||
420 | i = strtol (optarg, &p, 0); | |
421 | if (i == 0 && p == optarg) | |
422 | ||
423 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 424 | current_target) until after initialize_all_files(). */ |
c906108c SS |
425 | |
426 | fprintf_unfiltered | |
427 | (gdb_stderr, | |
c5aa993b | 428 | "warning: could not set timeout limit to `%s'.\n", optarg); |
c906108c SS |
429 | else |
430 | remote_timeout = i; | |
431 | } | |
432 | break; | |
433 | ||
434 | #ifdef ADDITIONAL_OPTION_CASES | |
c5aa993b | 435 | ADDITIONAL_OPTION_CASES |
c906108c SS |
436 | #endif |
437 | case '?': | |
438 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b JM |
439 | "Use `%s --help' for a complete list of options.\n", |
440 | argv[0]); | |
c906108c SS |
441 | exit (1); |
442 | } | |
443 | } | |
444 | ||
445 | /* If --help or --version, disable window interface. */ | |
446 | if (print_help || print_version) | |
447 | { | |
448 | use_windows = 0; | |
449 | #ifdef TUI | |
450 | /* Disable the TUI as well. */ | |
451 | tui_version = 0; | |
452 | #endif | |
453 | } | |
454 | ||
455 | #ifdef TUI | |
456 | /* An explicit --tui flag overrides the default UI, which is the | |
457 | window system. */ | |
458 | if (tui_version) | |
459 | use_windows = 0; | |
c5aa993b | 460 | #endif |
c906108c SS |
461 | |
462 | /* OK, that's all the options. The other arguments are filenames. */ | |
463 | count = 0; | |
464 | for (; optind < argc; optind++) | |
465 | switch (++count) | |
466 | { | |
467 | case 1: | |
468 | symarg = argv[optind]; | |
469 | execarg = argv[optind]; | |
470 | break; | |
471 | case 2: | |
1adeb98a | 472 | /* FIXME: The documentation says this can be a "ProcID". as well. */ |
c906108c SS |
473 | corearg = argv[optind]; |
474 | break; | |
475 | case 3: | |
476 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b JM |
477 | "Excess command line arguments ignored. (%s%s)\n", |
478 | argv[optind], (optind == argc - 1) ? "" : " ..."); | |
c906108c SS |
479 | break; |
480 | } | |
481 | if (batch) | |
482 | quiet = 1; | |
483 | } | |
484 | ||
485 | #if defined(TUI) | |
0f71a2f6 | 486 | /* Should this be moved to tui-top.c:_initialize_tui()? */ |
c906108c SS |
487 | if (tui_version) |
488 | init_ui_hook = tuiInit; | |
489 | #endif | |
0f71a2f6 JM |
490 | |
491 | /* Initialize all files. Give the interpreter a chance to take | |
492 | control of the console via the init_ui_hook()) */ | |
c906108c SS |
493 | gdb_init (argv[0]); |
494 | ||
495 | /* Do these (and anything which might call wrap_here or *_filtered) | |
496 | after initialize_all_files. */ | |
497 | if (print_version) | |
498 | { | |
499 | print_gdb_version (gdb_stdout); | |
500 | wrap_here (""); | |
501 | printf_filtered ("\n"); | |
502 | exit (0); | |
503 | } | |
504 | ||
505 | if (print_help) | |
506 | { | |
507 | print_gdb_help (gdb_stdout); | |
508 | fputs_unfiltered ("\n", gdb_stdout); | |
509 | exit (0); | |
510 | } | |
511 | ||
512 | if (!quiet) | |
513 | { | |
514 | /* Print all the junk at the top, with trailing "..." if we are about | |
c5aa993b | 515 | to read a symbol file (possibly slowly). */ |
c906108c SS |
516 | print_gdb_version (gdb_stdout); |
517 | if (symarg) | |
518 | printf_filtered (".."); | |
c5aa993b JM |
519 | wrap_here (""); |
520 | gdb_flush (gdb_stdout); /* Force to screen during slow operations */ | |
c906108c SS |
521 | } |
522 | ||
523 | error_pre_print = "\n\n"; | |
524 | quit_pre_print = error_pre_print; | |
525 | ||
526 | /* We may get more than one warning, don't double space all of them... */ | |
527 | warning_pre_print = "\nwarning: "; | |
528 | ||
529 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done | |
530 | *before* all the command line arguments are processed; it sets | |
531 | global parameters, which are independent of what file you are | |
532 | debugging or what directory you are in. */ | |
c5aa993b | 533 | homedir = getenv ("HOME"); |
c906108c SS |
534 | if (homedir) |
535 | { | |
536 | homeinit = (char *) alloca (strlen (homedir) + | |
537 | strlen (gdbinit) + 10); | |
538 | strcpy (homeinit, homedir); | |
539 | strcat (homeinit, "/"); | |
540 | strcat (homeinit, gdbinit); | |
541 | ||
542 | if (!inhibit_gdbinit) | |
543 | { | |
11cf8741 | 544 | catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL); |
c906108c | 545 | } |
c906108c SS |
546 | |
547 | /* Do stats; no need to do them elsewhere since we'll only | |
c5aa993b JM |
548 | need them if homedir is set. Make sure that they are |
549 | zero in case one of them fails (this guarantees that they | |
550 | won't match if either exists). */ | |
551 | ||
c906108c SS |
552 | memset (&homebuf, 0, sizeof (struct stat)); |
553 | memset (&cwdbuf, 0, sizeof (struct stat)); | |
c5aa993b | 554 | |
c906108c | 555 | stat (homeinit, &homebuf); |
c5aa993b JM |
556 | stat (gdbinit, &cwdbuf); /* We'll only need this if |
557 | homedir was set. */ | |
c906108c SS |
558 | } |
559 | ||
560 | /* Now perform all the actions indicated by the arguments. */ | |
561 | if (cdarg != NULL) | |
562 | { | |
11cf8741 | 563 | catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL); |
c906108c | 564 | } |
c906108c SS |
565 | |
566 | for (i = 0; i < ndir; i++) | |
11cf8741 | 567 | catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL); |
b8c9b27d | 568 | xfree (dirarg); |
c906108c SS |
569 | |
570 | if (execarg != NULL | |
571 | && symarg != NULL | |
572 | && STREQ (execarg, symarg)) | |
573 | { | |
11cf8741 JM |
574 | /* The exec file and the symbol-file are the same. If we can't |
575 | open it, better only print one error message. | |
576 | catch_command_errors returns non-zero on success! */ | |
1adeb98a FN |
577 | if (catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL)) |
578 | catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); | |
c906108c SS |
579 | } |
580 | else | |
581 | { | |
582 | if (execarg != NULL) | |
1adeb98a | 583 | catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL); |
c906108c | 584 | if (symarg != NULL) |
1adeb98a | 585 | catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); |
c906108c | 586 | } |
c906108c SS |
587 | |
588 | /* After the symbol file has been read, print a newline to get us | |
589 | beyond the copyright line... But errors should still set off | |
590 | the error message with a (single) blank line. */ | |
591 | if (!quiet) | |
592 | printf_filtered ("\n"); | |
593 | error_pre_print = "\n"; | |
594 | quit_pre_print = error_pre_print; | |
595 | warning_pre_print = "\nwarning: "; | |
596 | ||
597 | if (corearg != NULL) | |
598 | { | |
11cf8741 JM |
599 | if (catch_command_errors (core_file_command, corearg, !batch, RETURN_MASK_ALL) == 0) |
600 | { | |
601 | /* See if the core file is really a PID. */ | |
602 | if (isdigit (corearg[0])) | |
603 | catch_command_errors (attach_command, corearg, !batch, RETURN_MASK_ALL); | |
604 | } | |
c906108c | 605 | } |
c906108c SS |
606 | |
607 | if (ttyarg != NULL) | |
11cf8741 | 608 | catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL); |
c906108c SS |
609 | |
610 | #ifdef ADDITIONAL_OPTION_HANDLER | |
611 | ADDITIONAL_OPTION_HANDLER; | |
612 | #endif | |
613 | ||
614 | /* Error messages should no longer be distinguished with extra output. */ | |
615 | error_pre_print = NULL; | |
616 | quit_pre_print = NULL; | |
617 | warning_pre_print = "warning: "; | |
618 | ||
619 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
620 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
c5aa993b | 621 | |
c906108c SS |
622 | if (!homedir |
623 | || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat))) | |
624 | if (!inhibit_gdbinit) | |
625 | { | |
11cf8741 | 626 | catch_command_errors (source_command, gdbinit, 0, RETURN_MASK_ALL); |
c906108c | 627 | } |
c906108c SS |
628 | |
629 | for (i = 0; i < ncmd; i++) | |
630 | { | |
11cf8741 JM |
631 | #if 0 |
632 | /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that | |
633 | expanded into a call to setjmp(). */ | |
634 | if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */ | |
c906108c | 635 | { |
b83266a0 SS |
636 | /* NOTE: I am commenting this out, because it is not clear |
637 | where this feature is used. It is very old and | |
c5aa993b | 638 | undocumented. ezannoni: 1999-05-04 */ |
b83266a0 | 639 | #if 0 |
c906108c SS |
640 | if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0') |
641 | read_command_file (stdin); | |
642 | else | |
b83266a0 | 643 | #endif |
c906108c SS |
644 | source_command (cmdarg[i], !batch); |
645 | do_cleanups (ALL_CLEANUPS); | |
646 | } | |
11cf8741 JM |
647 | #endif |
648 | catch_command_errors (source_command, cmdarg[i], !batch, RETURN_MASK_ALL); | |
c906108c | 649 | } |
b8c9b27d | 650 | xfree (cmdarg); |
c906108c SS |
651 | |
652 | /* Read in the old history after all the command files have been read. */ | |
c5aa993b | 653 | init_history (); |
c906108c SS |
654 | |
655 | if (batch) | |
656 | { | |
657 | /* We have hit the end of the batch file. */ | |
658 | exit (0); | |
659 | } | |
660 | ||
661 | /* Do any host- or target-specific hacks. This is used for i960 targets | |
662 | to force the user to set a nindy target and spec its parameters. */ | |
663 | ||
664 | #ifdef BEFORE_MAIN_LOOP_HOOK | |
665 | BEFORE_MAIN_LOOP_HOOK; | |
666 | #endif | |
667 | ||
668 | END_PROGRESS (argv[0]); | |
669 | ||
670 | /* Show time and/or space usage. */ | |
671 | ||
672 | if (display_time) | |
673 | { | |
674 | long init_time = get_run_time () - time_at_startup; | |
675 | ||
676 | printf_unfiltered ("Startup time: %ld.%06ld\n", | |
677 | init_time / 1000000, init_time % 1000000); | |
678 | } | |
679 | ||
680 | if (display_space) | |
681 | { | |
682 | #ifdef HAVE_SBRK | |
683 | extern char **environ; | |
684 | char *lim = (char *) sbrk (0); | |
685 | ||
686 | printf_unfiltered ("Startup size: data size %ld\n", | |
687 | (long) (lim - (char *) &environ)); | |
688 | #endif | |
689 | } | |
690 | ||
11cf8741 JM |
691 | #if 0 |
692 | /* FIXME: cagney/1999-11-06: The original main loop was like: */ | |
c906108c SS |
693 | while (1) |
694 | { | |
695 | if (!SET_TOP_LEVEL ()) | |
696 | { | |
c5aa993b | 697 | do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */ |
c906108c SS |
698 | /* GUIs generally have their own command loop, mainloop, or whatever. |
699 | This is a good place to gain control because many error | |
700 | conditions will end up here via longjmp(). */ | |
701 | if (command_loop_hook) | |
702 | command_loop_hook (); | |
703 | else | |
704 | command_loop (); | |
c5aa993b | 705 | quit_command ((char *) 0, instream == stdin); |
c906108c SS |
706 | } |
707 | } | |
11cf8741 JM |
708 | /* NOTE: If the command_loop() returned normally, the loop would |
709 | attempt to exit by calling the function quit_command(). That | |
710 | function would either call exit() or throw an error returning | |
711 | control to SET_TOP_LEVEL. */ | |
712 | /* NOTE: The function do_cleanups() was called once each time round | |
713 | the loop. The usefulness of the call isn't clear. If an error | |
714 | was thrown, everything would have already been cleaned up. If | |
715 | command_loop() returned normally and quit_command() was called, | |
716 | either exit() or error() (again cleaning up) would be called. */ | |
717 | #endif | |
718 | /* NOTE: cagney/1999-11-07: There is probably no reason for not | |
719 | moving this loop and the code found in captured_command_loop() | |
720 | into the command_loop() proper. The main thing holding back that | |
721 | change - SET_TOP_LEVEL() - has been eliminated. */ | |
722 | while (1) | |
723 | { | |
724 | catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); | |
725 | } | |
11cf8741 JM |
726 | /* No exit -- exit is through quit_command. */ |
727 | } | |
c906108c | 728 | |
11cf8741 JM |
729 | int |
730 | main (int argc, char **argv) | |
731 | { | |
11cf8741 JM |
732 | struct captured_main_args args; |
733 | args.argc = argc; | |
734 | args.argv = argv; | |
735 | catch_errors (captured_main, &args, "", RETURN_MASK_ALL); | |
736 | return 0; | |
c906108c SS |
737 | } |
738 | ||
11cf8741 | 739 | |
c906108c SS |
740 | /* Don't use *_filtered for printing help. We don't want to prompt |
741 | for continue no matter how small the screen or how much we're going | |
742 | to print. */ | |
743 | ||
744 | static void | |
d9fcf2fb | 745 | print_gdb_help (struct ui_file *stream) |
c906108c | 746 | { |
c5aa993b | 747 | fputs_unfiltered ("\ |
c906108c SS |
748 | This is the GNU debugger. Usage:\n\n\ |
749 | gdb [options] [executable-file [core-file or process-id]]\n\n\ | |
750 | Options:\n\n\ | |
0f71a2f6 | 751 | ", stream); |
c5aa993b | 752 | fputs_unfiltered ("\ |
0f71a2f6 | 753 | --[no]async Enable (disable) asynchronous version of CLI\n\ |
c906108c | 754 | ", stream); |
c5aa993b | 755 | fputs_unfiltered ("\ |
c906108c SS |
756 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ |
757 | --batch Exit after processing options.\n\ | |
758 | --cd=DIR Change current directory to DIR.\n\ | |
759 | --command=FILE Execute GDB commands from FILE.\n\ | |
760 | --core=COREFILE Analyze the core dump COREFILE.\n\ | |
761 | ", stream); | |
c5aa993b | 762 | fputs_unfiltered ("\ |
c906108c SS |
763 | --dbx DBX compatibility mode.\n\ |
764 | --directory=DIR Search for source files in DIR.\n\ | |
765 | --epoch Output information used by epoch emacs-GDB interface.\n\ | |
766 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
767 | --fullname Output information used by emacs-GDB interface.\n\ | |
768 | --help Print this message.\n\ | |
8b93c638 JM |
769 | ", stream); |
770 | fputs_unfiltered ("\ | |
771 | --interpreter=INTERP\n\ | |
772 | Select a specific interpreter / user interface\n\ | |
c906108c | 773 | ", stream); |
c5aa993b | 774 | fputs_unfiltered ("\ |
c906108c SS |
775 | --mapped Use mapped symbol files if supported on this system.\n\ |
776 | --nw Do not use a window interface.\n\ | |
96baa820 JM |
777 | --nx Do not read ", stream); |
778 | fputs_unfiltered (gdbinit, stream); | |
779 | fputs_unfiltered (" file.\n\ | |
c906108c SS |
780 | --quiet Do not print version number on startup.\n\ |
781 | --readnow Fully read symbol files on first access.\n\ | |
782 | ", stream); | |
c5aa993b | 783 | fputs_unfiltered ("\ |
c906108c SS |
784 | --se=FILE Use FILE as symbol file and executable file.\n\ |
785 | --symbols=SYMFILE Read symbols from SYMFILE.\n\ | |
786 | --tty=TTY Use TTY for input/output by the program being debugged.\n\ | |
787 | ", stream); | |
788 | #if defined(TUI) | |
c5aa993b | 789 | fputs_unfiltered ("\ |
c906108c SS |
790 | --tui Use a terminal user interface.\n\ |
791 | ", stream); | |
792 | #endif | |
c5aa993b | 793 | fputs_unfiltered ("\ |
c906108c SS |
794 | --version Print version information and then exit.\n\ |
795 | -w Use a window interface.\n\ | |
796 | --write Set writing into executable and core files.\n\ | |
797 | --xdb XDB compatibility mode.\n\ | |
798 | ", stream); | |
799 | #ifdef ADDITIONAL_OPTION_HELP | |
c5aa993b | 800 | fputs_unfiltered (ADDITIONAL_OPTION_HELP, stream); |
c906108c | 801 | #endif |
c5aa993b | 802 | fputs_unfiltered ("\n\ |
c906108c SS |
803 | For more information, type \"help\" from within GDB, or consult the\n\ |
804 | GDB manual (available as on-line info or a printed manual).\n\ | |
2df3850c | 805 | Report bugs to \"bug-gdb@gnu.org\".\ |
c906108c SS |
806 | ", stream); |
807 | } |