Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
4389a95a AC |
2 | |
3 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, | |
7509373f MK |
4 | 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
5 | Free Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b JM |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
23 | |
24 | #include "defs.h" | |
c906108c SS |
25 | #include "top.h" |
26 | #include "target.h" | |
27 | #include "inferior.h" | |
1adeb98a FN |
28 | #include "symfile.h" |
29 | #include "gdbcore.h" | |
c906108c | 30 | |
60250e8b | 31 | #include "exceptions.h" |
c906108c SS |
32 | #include "getopt.h" |
33 | ||
34 | #include <sys/types.h> | |
35 | #include "gdb_stat.h" | |
36 | #include <ctype.h> | |
37 | ||
38 | #include "gdb_string.h" | |
9e0b60a8 | 39 | #include "event-loop.h" |
8b93c638 | 40 | #include "ui-out.h" |
6457bd47 | 41 | |
4389a95a | 42 | #include "interps.h" |
f15ab4a7 AC |
43 | #include "main.h" |
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 | ||
4389a95a AC |
53 | /* The selected interpreter. This will be used as a set command |
54 | variable, so it should always be malloc'ed - since | |
55 | do_setshow_command will free it. */ | |
fb40c209 | 56 | char *interpreter_p; |
fb40c209 | 57 | |
c906108c SS |
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 | ||
030292b7 DJ |
64 | /* System root path, used to find libraries etc. */ |
65 | char *gdb_sysroot = 0; | |
66 | ||
d9fcf2fb JM |
67 | struct ui_file *gdb_stdout; |
68 | struct ui_file *gdb_stderr; | |
69 | struct ui_file *gdb_stdlog; | |
449092f6 CV |
70 | struct ui_file *gdb_stdin; |
71 | /* target IO streams */ | |
72 | struct ui_file *gdb_stdtargin; | |
22e8e3c7 | 73 | struct ui_file *gdb_stdtarg; |
449092f6 | 74 | struct ui_file *gdb_stdtargerr; |
c906108c | 75 | |
1a088d06 AS |
76 | /* Support for the --batch-silent option. */ |
77 | int batch_silent = 0; | |
78 | ||
4b0ad762 AS |
79 | /* Support for --return-child-result option. |
80 | Set the default to -1 to return error in the case | |
81 | that the program does not run or does not complete. */ | |
82 | int return_child_result = 0; | |
83 | int return_child_result_value = -1; | |
84 | ||
c906108c SS |
85 | /* Whether to enable writing into executable and core files */ |
86 | extern int write_files; | |
87 | ||
d9fcf2fb | 88 | static void print_gdb_help (struct ui_file *); |
c906108c SS |
89 | |
90 | /* These two are used to set the external editor commands when gdb is farming | |
91 | out files to be edited by another program. */ | |
92 | ||
c5aa993b | 93 | extern char *external_editor_command; |
c906108c | 94 | |
11cf8741 JM |
95 | /* Call command_loop. If it happens to return, pass that through as a |
96 | non-zero return status. */ | |
97 | ||
98 | static int | |
99 | captured_command_loop (void *data) | |
c906108c | 100 | { |
4389a95a | 101 | current_interp_command_loop (); |
11cf8741 JM |
102 | /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton |
103 | would clean things up (restoring the cleanup chain) to the state | |
104 | they were just prior to the call. Technically, this means that | |
e26cc349 | 105 | the do_cleanups() below is redundant. Unfortunately, many FUNCs |
11cf8741 JM |
106 | are not that well behaved. do_cleanups should either be replaced |
107 | with a do_cleanups call (to cover the problem) or an assertion | |
108 | check to detect bad FUNCs code. */ | |
109 | do_cleanups (ALL_CLEANUPS); | |
110 | /* If the command_loop returned, normally (rather than threw an | |
111 | error) we try to quit. If the quit is aborted, catch_errors() | |
112 | which called this catch the signal and restart the command | |
113 | loop. */ | |
114 | quit_command (NULL, instream == stdin); | |
115 | return 1; | |
116 | } | |
117 | ||
11cf8741 JM |
118 | static int |
119 | captured_main (void *data) | |
120 | { | |
121 | struct captured_main_args *context = data; | |
122 | int argc = context->argc; | |
123 | char **argv = context->argv; | |
c906108c SS |
124 | int count; |
125 | static int quiet = 0; | |
126 | static int batch = 0; | |
552c04a7 | 127 | static int set_args = 0; |
c906108c SS |
128 | |
129 | /* Pointers to various arguments from command line. */ | |
130 | char *symarg = NULL; | |
131 | char *execarg = NULL; | |
132 | char *corearg = NULL; | |
133 | char *cdarg = NULL; | |
134 | char *ttyarg = NULL; | |
135 | ||
136 | /* These are static so that we can take their address in an initializer. */ | |
137 | static int print_help; | |
138 | static int print_version; | |
139 | ||
140 | /* Pointers to all arguments of --command option. */ | |
141 | char **cmdarg; | |
142 | /* Allocated size of cmdarg. */ | |
143 | int cmdsize; | |
144 | /* Number of elements of cmdarg used. */ | |
145 | int ncmd; | |
146 | ||
147 | /* Indices of all arguments of --directory option. */ | |
148 | char **dirarg; | |
149 | /* Allocated size. */ | |
150 | int dirsize; | |
151 | /* Number of elements used. */ | |
152 | int ndir; | |
c5aa993b | 153 | |
c906108c | 154 | struct stat homebuf, cwdbuf; |
7509373f | 155 | char *homedir; |
c906108c | 156 | |
52f0bd74 | 157 | int i; |
c906108c SS |
158 | |
159 | long time_at_startup = get_run_time (); | |
160 | ||
0fbb3da7 TT |
161 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
162 | setlocale (LC_MESSAGES, ""); | |
163 | #endif | |
164 | #if defined (HAVE_SETLOCALE) | |
165 | setlocale (LC_CTYPE, ""); | |
166 | #endif | |
167 | bindtextdomain (PACKAGE, LOCALEDIR); | |
168 | textdomain (PACKAGE); | |
169 | ||
6dd77b81 RH |
170 | #ifdef HAVE_SBRK |
171 | lim_at_start = (char *) sbrk (0); | |
172 | #endif | |
173 | ||
c906108c SS |
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 | gdb_stdout = stdio_fileopen (stdout); |
196 | gdb_stderr = stdio_fileopen (stderr); | |
197 | gdb_stdlog = gdb_stderr; /* for moment */ | |
198 | gdb_stdtarg = gdb_stderr; /* for moment */ | |
449092f6 CV |
199 | gdb_stdin = stdio_fileopen (stdin); |
200 | gdb_stdtargerr = gdb_stderr; /* for moment */ | |
201 | gdb_stdtargin = gdb_stdin; /* for moment */ | |
c906108c | 202 | |
030292b7 DJ |
203 | /* Set the sysroot path. */ |
204 | #ifdef TARGET_SYSTEM_ROOT_RELOCATABLE | |
205 | gdb_sysroot = make_relative_prefix (argv[0], BINDIR, TARGET_SYSTEM_ROOT); | |
206 | if (gdb_sysroot) | |
207 | { | |
208 | struct stat s; | |
209 | int res = 0; | |
210 | ||
211 | if (stat (gdb_sysroot, &s) == 0) | |
212 | if (S_ISDIR (s.st_mode)) | |
213 | res = 1; | |
214 | ||
215 | if (res == 0) | |
216 | { | |
a84d24ee | 217 | xfree (gdb_sysroot); |
030292b7 DJ |
218 | gdb_sysroot = TARGET_SYSTEM_ROOT; |
219 | } | |
220 | } | |
221 | else | |
222 | gdb_sysroot = TARGET_SYSTEM_ROOT; | |
223 | #else | |
224 | #if defined (TARGET_SYSTEM_ROOT) | |
225 | gdb_sysroot = TARGET_SYSTEM_ROOT; | |
226 | #else | |
227 | gdb_sysroot = ""; | |
228 | #endif | |
229 | #endif | |
230 | ||
4389a95a | 231 | /* There will always be an interpreter. Either the one passed into |
e46e5ccd KS |
232 | this captured main, or one specified by the user at start up, or |
233 | the console. Initialize the interpreter to the one requested by | |
234 | the application. */ | |
235 | interpreter_p = xstrdup (context->interpreter_p); | |
4389a95a | 236 | |
c906108c SS |
237 | /* Parse arguments and options. */ |
238 | { | |
239 | int c; | |
240 | /* When var field is 0, use flag field to record the equivalent | |
241 | short option (or arbitrary numbers starting at 10 for those | |
242 | with no equivalent). */ | |
49c7e338 AC |
243 | enum { |
244 | OPT_SE = 10, | |
245 | OPT_CD, | |
246 | OPT_ANNOTATE, | |
247 | OPT_STATISTICS, | |
42fa7c0f AC |
248 | OPT_TUI, |
249 | OPT_NOWINDOWS, | |
250 | OPT_WINDOWS | |
49c7e338 | 251 | }; |
c906108c | 252 | static struct option long_options[] = |
c5aa993b | 253 | { |
c906108c | 254 | #if defined(TUI) |
49c7e338 | 255 | {"tui", no_argument, 0, OPT_TUI}, |
c906108c | 256 | #endif |
c5aa993b JM |
257 | {"xdb", no_argument, &xdb_commands, 1}, |
258 | {"dbx", no_argument, &dbx_commands, 1}, | |
259 | {"readnow", no_argument, &readnow_symbol_files, 1}, | |
260 | {"r", no_argument, &readnow_symbol_files, 1}, | |
c5aa993b JM |
261 | {"quiet", no_argument, &quiet, 1}, |
262 | {"q", no_argument, &quiet, 1}, | |
263 | {"silent", no_argument, &quiet, 1}, | |
264 | {"nx", no_argument, &inhibit_gdbinit, 1}, | |
265 | {"n", no_argument, &inhibit_gdbinit, 1}, | |
1a088d06 | 266 | {"batch-silent", no_argument, 0, 'B'}, |
c5aa993b JM |
267 | {"batch", no_argument, &batch, 1}, |
268 | {"epoch", no_argument, &epoch_interface, 1}, | |
269 | ||
270 | /* This is a synonym for "--annotate=1". --annotate is now preferred, | |
271 | but keep this here for a long time because people will be running | |
272 | emacses which use --fullname. */ | |
273 | {"fullname", no_argument, 0, 'f'}, | |
274 | {"f", no_argument, 0, 'f'}, | |
275 | ||
49c7e338 | 276 | {"annotate", required_argument, 0, OPT_ANNOTATE}, |
c5aa993b | 277 | {"help", no_argument, &print_help, 1}, |
49c7e338 | 278 | {"se", required_argument, 0, OPT_SE}, |
c5aa993b JM |
279 | {"symbols", required_argument, 0, 's'}, |
280 | {"s", required_argument, 0, 's'}, | |
281 | {"exec", required_argument, 0, 'e'}, | |
282 | {"e", required_argument, 0, 'e'}, | |
283 | {"core", required_argument, 0, 'c'}, | |
284 | {"c", required_argument, 0, 'c'}, | |
00546b04 MS |
285 | {"pid", required_argument, 0, 'p'}, |
286 | {"p", required_argument, 0, 'p'}, | |
c5aa993b JM |
287 | {"command", required_argument, 0, 'x'}, |
288 | {"version", no_argument, &print_version, 1}, | |
289 | {"x", required_argument, 0, 'x'}, | |
3fc11d3e JM |
290 | #ifdef GDBTK |
291 | {"tclcommand", required_argument, 0, 'z'}, | |
292 | {"enable-external-editor", no_argument, 0, 'y'}, | |
293 | {"editor-command", required_argument, 0, 'w'}, | |
294 | #endif | |
8b93c638 JM |
295 | {"ui", required_argument, 0, 'i'}, |
296 | {"interpreter", required_argument, 0, 'i'}, | |
297 | {"i", required_argument, 0, 'i'}, | |
c5aa993b | 298 | {"directory", required_argument, 0, 'd'}, |
c4093a6a | 299 | {"d", required_argument, 0, 'd'}, |
49c7e338 | 300 | {"cd", required_argument, 0, OPT_CD}, |
c5aa993b JM |
301 | {"tty", required_argument, 0, 't'}, |
302 | {"baud", required_argument, 0, 'b'}, | |
303 | {"b", required_argument, 0, 'b'}, | |
42fa7c0f AC |
304 | {"nw", no_argument, NULL, OPT_NOWINDOWS}, |
305 | {"nowindows", no_argument, NULL, OPT_NOWINDOWS}, | |
306 | {"w", no_argument, NULL, OPT_WINDOWS}, | |
307 | {"windows", no_argument, NULL, OPT_WINDOWS}, | |
49c7e338 | 308 | {"statistics", no_argument, 0, OPT_STATISTICS}, |
c5aa993b | 309 | {"write", no_argument, &write_files, 1}, |
552c04a7 | 310 | {"args", no_argument, &set_args, 1}, |
f47b1503 | 311 | {"l", required_argument, 0, 'l'}, |
4b0ad762 | 312 | {"return-child-result", no_argument, &return_child_result, 1}, |
c5aa993b JM |
313 | {0, no_argument, 0, 0} |
314 | }; | |
c906108c SS |
315 | |
316 | while (1) | |
317 | { | |
318 | int option_index; | |
319 | ||
320 | c = getopt_long_only (argc, argv, "", | |
321 | long_options, &option_index); | |
552c04a7 | 322 | if (c == EOF || set_args) |
c906108c SS |
323 | break; |
324 | ||
325 | /* Long option that takes an argument. */ | |
326 | if (c == 0 && long_options[option_index].flag == 0) | |
327 | c = long_options[option_index].val; | |
328 | ||
329 | switch (c) | |
330 | { | |
331 | case 0: | |
332 | /* Long option that just sets a flag. */ | |
333 | break; | |
49c7e338 | 334 | case OPT_SE: |
c906108c SS |
335 | symarg = optarg; |
336 | execarg = optarg; | |
337 | break; | |
49c7e338 | 338 | case OPT_CD: |
c906108c SS |
339 | cdarg = optarg; |
340 | break; | |
49c7e338 | 341 | case OPT_ANNOTATE: |
c906108c SS |
342 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ |
343 | annotation_level = atoi (optarg); | |
344 | break; | |
49c7e338 | 345 | case OPT_STATISTICS: |
c906108c SS |
346 | /* Enable the display of both time and space usage. */ |
347 | display_time = 1; | |
348 | display_space = 1; | |
349 | break; | |
49c7e338 | 350 | case OPT_TUI: |
021e7609 AC |
351 | /* --tui is equivalent to -i=tui. */ |
352 | xfree (interpreter_p); | |
cc4349ed | 353 | interpreter_p = xstrdup (INTERP_TUI); |
021e7609 | 354 | break; |
42fa7c0f AC |
355 | case OPT_WINDOWS: |
356 | /* FIXME: cagney/2003-03-01: Not sure if this option is | |
357 | actually useful, and if it is, what it should do. */ | |
cc4349ed AS |
358 | #ifdef GDBTK |
359 | /* --windows is equivalent to -i=insight. */ | |
360 | xfree (interpreter_p); | |
361 | interpreter_p = xstrdup (INTERP_INSIGHT); | |
362 | #endif | |
42fa7c0f AC |
363 | use_windows = 1; |
364 | break; | |
365 | case OPT_NOWINDOWS: | |
366 | /* -nw is equivalent to -i=console. */ | |
367 | xfree (interpreter_p); | |
368 | interpreter_p = xstrdup (INTERP_CONSOLE); | |
369 | use_windows = 0; | |
370 | break; | |
c906108c SS |
371 | case 'f': |
372 | annotation_level = 1; | |
373 | /* We have probably been invoked from emacs. Disable window interface. */ | |
374 | use_windows = 0; | |
375 | break; | |
376 | case 's': | |
377 | symarg = optarg; | |
378 | break; | |
379 | case 'e': | |
380 | execarg = optarg; | |
381 | break; | |
382 | case 'c': | |
383 | corearg = optarg; | |
384 | break; | |
00546b04 MS |
385 | case 'p': |
386 | /* "corearg" is shared by "--core" and "--pid" */ | |
387 | corearg = optarg; | |
388 | break; | |
c906108c SS |
389 | case 'x': |
390 | cmdarg[ncmd++] = optarg; | |
391 | if (ncmd >= cmdsize) | |
392 | { | |
393 | cmdsize *= 2; | |
c5aa993b | 394 | cmdarg = (char **) xrealloc ((char *) cmdarg, |
c906108c SS |
395 | cmdsize * sizeof (*cmdarg)); |
396 | } | |
397 | break; | |
1a088d06 AS |
398 | case 'B': |
399 | batch = batch_silent = 1; | |
400 | gdb_stdout = ui_file_new(); | |
401 | break; | |
3fc11d3e JM |
402 | #ifdef GDBTK |
403 | case 'z': | |
404 | { | |
a14ed312 | 405 | extern int gdbtk_test (char *); |
3fc11d3e JM |
406 | if (!gdbtk_test (optarg)) |
407 | { | |
defc6f8c | 408 | fprintf_unfiltered (gdb_stderr, _("%s: unable to load tclcommand file \"%s\""), |
3fc11d3e JM |
409 | argv[0], optarg); |
410 | exit (1); | |
411 | } | |
412 | break; | |
413 | } | |
414 | case 'y': | |
78f49586 TT |
415 | /* Backwards compatibility only. */ |
416 | break; | |
3fc11d3e JM |
417 | case 'w': |
418 | { | |
3fc11d3e JM |
419 | external_editor_command = xstrdup (optarg); |
420 | break; | |
421 | } | |
422 | #endif /* GDBTK */ | |
fb40c209 | 423 | case 'i': |
4389a95a AC |
424 | xfree (interpreter_p); |
425 | interpreter_p = xstrdup (optarg); | |
fb40c209 | 426 | break; |
c906108c SS |
427 | case 'd': |
428 | dirarg[ndir++] = optarg; | |
429 | if (ndir >= dirsize) | |
430 | { | |
431 | dirsize *= 2; | |
c5aa993b | 432 | dirarg = (char **) xrealloc ((char *) dirarg, |
c906108c SS |
433 | dirsize * sizeof (*dirarg)); |
434 | } | |
435 | break; | |
436 | case 't': | |
437 | ttyarg = optarg; | |
438 | break; | |
439 | case 'q': | |
440 | quiet = 1; | |
441 | break; | |
442 | case 'b': | |
443 | { | |
444 | int i; | |
445 | char *p; | |
446 | ||
447 | i = strtol (optarg, &p, 0); | |
448 | if (i == 0 && p == optarg) | |
449 | ||
450 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 451 | current_target) until after initialize_all_files(). */ |
c906108c SS |
452 | |
453 | fprintf_unfiltered | |
454 | (gdb_stderr, | |
defc6f8c | 455 | _("warning: could not set baud rate to `%s'.\n"), optarg); |
c906108c SS |
456 | else |
457 | baud_rate = i; | |
458 | } | |
046ca86a | 459 | break; |
c906108c SS |
460 | case 'l': |
461 | { | |
462 | int i; | |
463 | char *p; | |
464 | ||
465 | i = strtol (optarg, &p, 0); | |
466 | if (i == 0 && p == optarg) | |
467 | ||
468 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 469 | current_target) until after initialize_all_files(). */ |
c906108c SS |
470 | |
471 | fprintf_unfiltered | |
472 | (gdb_stderr, | |
defc6f8c | 473 | _("warning: could not set timeout limit to `%s'.\n"), optarg); |
c906108c SS |
474 | else |
475 | remote_timeout = i; | |
476 | } | |
477 | break; | |
478 | ||
c906108c SS |
479 | case '?': |
480 | fprintf_unfiltered (gdb_stderr, | |
defc6f8c | 481 | _("Use `%s --help' for a complete list of options.\n"), |
c5aa993b | 482 | argv[0]); |
c906108c SS |
483 | exit (1); |
484 | } | |
485 | } | |
486 | ||
487 | /* If --help or --version, disable window interface. */ | |
488 | if (print_help || print_version) | |
489 | { | |
490 | use_windows = 0; | |
c906108c SS |
491 | } |
492 | ||
552c04a7 TT |
493 | if (set_args) |
494 | { | |
495 | /* The remaining options are the command-line options for the | |
496 | inferior. The first one is the sym/exec file, and the rest | |
497 | are arguments. */ | |
498 | if (optind >= argc) | |
499 | { | |
500 | fprintf_unfiltered (gdb_stderr, | |
defc6f8c | 501 | _("%s: `--args' specified but no program specified\n"), |
552c04a7 TT |
502 | argv[0]); |
503 | exit (1); | |
504 | } | |
505 | symarg = argv[optind]; | |
506 | execarg = argv[optind]; | |
507 | ++optind; | |
508 | set_inferior_args_vector (argc - optind, &argv[optind]); | |
509 | } | |
510 | else | |
511 | { | |
512 | /* OK, that's all the options. The other arguments are filenames. */ | |
513 | count = 0; | |
514 | for (; optind < argc; optind++) | |
515 | switch (++count) | |
516 | { | |
517 | case 1: | |
518 | symarg = argv[optind]; | |
519 | execarg = argv[optind]; | |
520 | break; | |
521 | case 2: | |
00546b04 MS |
522 | /* The documentation says this can be a "ProcID" as well. |
523 | We will try it as both a corefile and a pid. */ | |
552c04a7 TT |
524 | corearg = argv[optind]; |
525 | break; | |
526 | case 3: | |
527 | fprintf_unfiltered (gdb_stderr, | |
defc6f8c | 528 | _("Excess command line arguments ignored. (%s%s)\n"), |
552c04a7 TT |
529 | argv[optind], (optind == argc - 1) ? "" : " ..."); |
530 | break; | |
531 | } | |
532 | } | |
c906108c SS |
533 | if (batch) |
534 | quiet = 1; | |
535 | } | |
536 | ||
0f71a2f6 | 537 | /* Initialize all files. Give the interpreter a chance to take |
ba5e7e8d | 538 | control of the console via the deprecated_init_ui_hook (). */ |
c906108c SS |
539 | gdb_init (argv[0]); |
540 | ||
541 | /* Do these (and anything which might call wrap_here or *_filtered) | |
4389a95a AC |
542 | after initialize_all_files() but before the interpreter has been |
543 | installed. Otherwize the help/version messages will be eaten by | |
544 | the interpreter's output handler. */ | |
545 | ||
c906108c SS |
546 | if (print_version) |
547 | { | |
548 | print_gdb_version (gdb_stdout); | |
549 | wrap_here (""); | |
550 | printf_filtered ("\n"); | |
551 | exit (0); | |
552 | } | |
553 | ||
554 | if (print_help) | |
555 | { | |
556 | print_gdb_help (gdb_stdout); | |
557 | fputs_unfiltered ("\n", gdb_stdout); | |
558 | exit (0); | |
559 | } | |
560 | ||
4389a95a AC |
561 | /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets |
562 | GDB retain the old MI1 interpreter startup behavior. Output the | |
563 | copyright message before the interpreter is installed. That way | |
564 | it isn't encapsulated in MI output. */ | |
565 | if (!quiet && strcmp (interpreter_p, INTERP_MI1) == 0) | |
566 | { | |
567 | /* Print all the junk at the top, with trailing "..." if we are about | |
568 | to read a symbol file (possibly slowly). */ | |
569 | print_gdb_version (gdb_stdout); | |
570 | if (symarg) | |
571 | printf_filtered (".."); | |
572 | wrap_here (""); | |
573 | gdb_flush (gdb_stdout); /* Force to screen during slow operations */ | |
574 | } | |
575 | ||
576 | ||
577 | /* Install the default UI. All the interpreters should have had a | |
578 | look at things by now. Initialize the default interpreter. */ | |
579 | ||
580 | { | |
581 | /* Find it. */ | |
582 | struct interp *interp = interp_lookup (interpreter_p); | |
583 | if (interp == NULL) | |
8a3fe4f8 | 584 | error (_("Interpreter `%s' unrecognized"), interpreter_p); |
4389a95a AC |
585 | /* Install it. */ |
586 | if (!interp_set (interp)) | |
587 | { | |
588 | fprintf_unfiltered (gdb_stderr, | |
589 | "Interpreter `%s' failed to initialize.\n", | |
590 | interpreter_p); | |
591 | exit (1); | |
592 | } | |
593 | } | |
594 | ||
595 | /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets | |
596 | GDB retain the old MI1 interpreter startup behavior. Output the | |
597 | copyright message after the interpreter is installed when it is | |
598 | any sane interpreter. */ | |
599 | if (!quiet && !current_interp_named_p (INTERP_MI1)) | |
c906108c SS |
600 | { |
601 | /* Print all the junk at the top, with trailing "..." if we are about | |
c5aa993b | 602 | to read a symbol file (possibly slowly). */ |
c906108c SS |
603 | print_gdb_version (gdb_stdout); |
604 | if (symarg) | |
605 | printf_filtered (".."); | |
c5aa993b JM |
606 | wrap_here (""); |
607 | gdb_flush (gdb_stdout); /* Force to screen during slow operations */ | |
c906108c SS |
608 | } |
609 | ||
610 | error_pre_print = "\n\n"; | |
611 | quit_pre_print = error_pre_print; | |
612 | ||
613 | /* We may get more than one warning, don't double space all of them... */ | |
defc6f8c | 614 | warning_pre_print = _("\nwarning: "); |
c906108c SS |
615 | |
616 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done | |
617 | *before* all the command line arguments are processed; it sets | |
618 | global parameters, which are independent of what file you are | |
619 | debugging or what directory you are in. */ | |
c5aa993b | 620 | homedir = getenv ("HOME"); |
c906108c SS |
621 | if (homedir) |
622 | { | |
7509373f | 623 | char *homeinit = xstrprintf ("%s/%s", homedir, gdbinit); |
c906108c SS |
624 | |
625 | if (!inhibit_gdbinit) | |
626 | { | |
11cf8741 | 627 | catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL); |
c906108c | 628 | } |
c906108c SS |
629 | |
630 | /* Do stats; no need to do them elsewhere since we'll only | |
c5aa993b JM |
631 | need them if homedir is set. Make sure that they are |
632 | zero in case one of them fails (this guarantees that they | |
633 | won't match if either exists). */ | |
634 | ||
c906108c SS |
635 | memset (&homebuf, 0, sizeof (struct stat)); |
636 | memset (&cwdbuf, 0, sizeof (struct stat)); | |
c5aa993b | 637 | |
c906108c | 638 | stat (homeinit, &homebuf); |
c5aa993b JM |
639 | stat (gdbinit, &cwdbuf); /* We'll only need this if |
640 | homedir was set. */ | |
7509373f | 641 | xfree (homeinit); |
c906108c SS |
642 | } |
643 | ||
644 | /* Now perform all the actions indicated by the arguments. */ | |
645 | if (cdarg != NULL) | |
646 | { | |
11cf8741 | 647 | catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL); |
c906108c | 648 | } |
c906108c SS |
649 | |
650 | for (i = 0; i < ndir; i++) | |
11cf8741 | 651 | catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL); |
b8c9b27d | 652 | xfree (dirarg); |
c906108c SS |
653 | |
654 | if (execarg != NULL | |
655 | && symarg != NULL | |
5cb316ef | 656 | && strcmp (execarg, symarg) == 0) |
c906108c | 657 | { |
11cf8741 JM |
658 | /* The exec file and the symbol-file are the same. If we can't |
659 | open it, better only print one error message. | |
660 | catch_command_errors returns non-zero on success! */ | |
1adeb98a FN |
661 | if (catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL)) |
662 | catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); | |
c906108c SS |
663 | } |
664 | else | |
665 | { | |
666 | if (execarg != NULL) | |
1adeb98a | 667 | catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL); |
c906108c | 668 | if (symarg != NULL) |
1adeb98a | 669 | catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); |
c906108c | 670 | } |
c906108c SS |
671 | |
672 | /* After the symbol file has been read, print a newline to get us | |
673 | beyond the copyright line... But errors should still set off | |
674 | the error message with a (single) blank line. */ | |
675 | if (!quiet) | |
676 | printf_filtered ("\n"); | |
677 | error_pre_print = "\n"; | |
678 | quit_pre_print = error_pre_print; | |
defc6f8c | 679 | warning_pre_print = _("\nwarning: "); |
c906108c SS |
680 | |
681 | if (corearg != NULL) | |
682 | { | |
00546b04 MS |
683 | /* corearg may be either a corefile or a pid. |
684 | If its first character is a digit, try attach first | |
685 | and then corefile. Otherwise try corefile first. */ | |
686 | ||
687 | if (isdigit (corearg[0])) | |
11cf8741 | 688 | { |
00546b04 MS |
689 | if (catch_command_errors (attach_command, corearg, |
690 | !batch, RETURN_MASK_ALL) == 0) | |
691 | catch_command_errors (core_file_command, corearg, | |
692 | !batch, RETURN_MASK_ALL); | |
11cf8741 | 693 | } |
00546b04 MS |
694 | else /* Can't be a pid, better be a corefile. */ |
695 | catch_command_errors (core_file_command, corearg, | |
696 | !batch, RETURN_MASK_ALL); | |
c906108c | 697 | } |
c906108c SS |
698 | |
699 | if (ttyarg != NULL) | |
11cf8741 | 700 | catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL); |
c906108c | 701 | |
c906108c SS |
702 | /* Error messages should no longer be distinguished with extra output. */ |
703 | error_pre_print = NULL; | |
704 | quit_pre_print = NULL; | |
defc6f8c | 705 | warning_pre_print = _("warning: "); |
c906108c SS |
706 | |
707 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
708 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
c5aa993b | 709 | |
c906108c SS |
710 | if (!homedir |
711 | || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat))) | |
712 | if (!inhibit_gdbinit) | |
713 | { | |
11cf8741 | 714 | catch_command_errors (source_command, gdbinit, 0, RETURN_MASK_ALL); |
c906108c | 715 | } |
c906108c SS |
716 | |
717 | for (i = 0; i < ncmd; i++) | |
718 | { | |
11cf8741 JM |
719 | #if 0 |
720 | /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that | |
721 | expanded into a call to setjmp(). */ | |
722 | if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */ | |
c906108c | 723 | { |
b83266a0 SS |
724 | /* NOTE: I am commenting this out, because it is not clear |
725 | where this feature is used. It is very old and | |
c5aa993b | 726 | undocumented. ezannoni: 1999-05-04 */ |
b83266a0 | 727 | #if 0 |
c906108c SS |
728 | if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0') |
729 | read_command_file (stdin); | |
730 | else | |
b83266a0 | 731 | #endif |
c906108c SS |
732 | source_command (cmdarg[i], !batch); |
733 | do_cleanups (ALL_CLEANUPS); | |
734 | } | |
11cf8741 JM |
735 | #endif |
736 | catch_command_errors (source_command, cmdarg[i], !batch, RETURN_MASK_ALL); | |
c906108c | 737 | } |
b8c9b27d | 738 | xfree (cmdarg); |
c906108c SS |
739 | |
740 | /* Read in the old history after all the command files have been read. */ | |
c5aa993b | 741 | init_history (); |
c906108c SS |
742 | |
743 | if (batch) | |
744 | { | |
745 | /* We have hit the end of the batch file. */ | |
4b0ad762 | 746 | quit_force (NULL, 0); |
c906108c SS |
747 | } |
748 | ||
749 | /* Do any host- or target-specific hacks. This is used for i960 targets | |
750 | to force the user to set a nindy target and spec its parameters. */ | |
751 | ||
752 | #ifdef BEFORE_MAIN_LOOP_HOOK | |
753 | BEFORE_MAIN_LOOP_HOOK; | |
754 | #endif | |
755 | ||
c906108c SS |
756 | /* Show time and/or space usage. */ |
757 | ||
758 | if (display_time) | |
759 | { | |
760 | long init_time = get_run_time () - time_at_startup; | |
761 | ||
defc6f8c | 762 | printf_unfiltered (_("Startup time: %ld.%06ld\n"), |
c906108c SS |
763 | init_time / 1000000, init_time % 1000000); |
764 | } | |
765 | ||
766 | if (display_space) | |
767 | { | |
768 | #ifdef HAVE_SBRK | |
769 | extern char **environ; | |
770 | char *lim = (char *) sbrk (0); | |
771 | ||
defc6f8c | 772 | printf_unfiltered (_("Startup size: data size %ld\n"), |
c906108c SS |
773 | (long) (lim - (char *) &environ)); |
774 | #endif | |
775 | } | |
776 | ||
11cf8741 JM |
777 | #if 0 |
778 | /* FIXME: cagney/1999-11-06: The original main loop was like: */ | |
c906108c SS |
779 | while (1) |
780 | { | |
781 | if (!SET_TOP_LEVEL ()) | |
782 | { | |
c5aa993b | 783 | do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */ |
ba5e7e8d MS |
784 | /* GUIs generally have their own command loop, mainloop, or |
785 | whatever. This is a good place to gain control because | |
786 | many error conditions will end up here via longjmp(). */ | |
9a4105ab AC |
787 | if (deprecated_command_loop_hook) |
788 | deprecated_command_loop_hook (); | |
c906108c | 789 | else |
9a4105ab | 790 | deprecated_command_loop (); |
c5aa993b | 791 | quit_command ((char *) 0, instream == stdin); |
c906108c SS |
792 | } |
793 | } | |
11cf8741 JM |
794 | /* NOTE: If the command_loop() returned normally, the loop would |
795 | attempt to exit by calling the function quit_command(). That | |
796 | function would either call exit() or throw an error returning | |
797 | control to SET_TOP_LEVEL. */ | |
798 | /* NOTE: The function do_cleanups() was called once each time round | |
799 | the loop. The usefulness of the call isn't clear. If an error | |
800 | was thrown, everything would have already been cleaned up. If | |
801 | command_loop() returned normally and quit_command() was called, | |
802 | either exit() or error() (again cleaning up) would be called. */ | |
803 | #endif | |
804 | /* NOTE: cagney/1999-11-07: There is probably no reason for not | |
805 | moving this loop and the code found in captured_command_loop() | |
806 | into the command_loop() proper. The main thing holding back that | |
807 | change - SET_TOP_LEVEL() - has been eliminated. */ | |
808 | while (1) | |
809 | { | |
810 | catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); | |
811 | } | |
11cf8741 JM |
812 | /* No exit -- exit is through quit_command. */ |
813 | } | |
c906108c | 814 | |
11cf8741 | 815 | int |
f15ab4a7 | 816 | gdb_main (struct captured_main_args *args) |
11cf8741 | 817 | { |
f15ab4a7 AC |
818 | use_windows = args->use_windows; |
819 | catch_errors (captured_main, args, "", RETURN_MASK_ALL); | |
864dbc90 AC |
820 | /* The only way to end up here is by an error (normal exit is |
821 | handled by quit_force()), hence always return an error status. */ | |
822 | return 1; | |
c906108c SS |
823 | } |
824 | ||
11cf8741 | 825 | |
c906108c SS |
826 | /* Don't use *_filtered for printing help. We don't want to prompt |
827 | for continue no matter how small the screen or how much we're going | |
828 | to print. */ | |
829 | ||
830 | static void | |
d9fcf2fb | 831 | print_gdb_help (struct ui_file *stream) |
c906108c | 832 | { |
defc6f8c | 833 | fputs_unfiltered (_("\ |
c906108c | 834 | This is the GNU debugger. Usage:\n\n\ |
552c04a7 TT |
835 | gdb [options] [executable-file [core-file or process-id]]\n\ |
836 | gdb [options] --args executable-file [inferior-arguments ...]\n\n\ | |
c906108c | 837 | Options:\n\n\ |
defc6f8c TT |
838 | "), stream); |
839 | fputs_unfiltered (_("\ | |
552c04a7 | 840 | --args Arguments after executable-file are passed to inferior\n\ |
defc6f8c TT |
841 | "), stream); |
842 | fputs_unfiltered (_("\ | |
c906108c SS |
843 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ |
844 | --batch Exit after processing options.\n\ | |
1a088d06 | 845 | --batch-silent As for --batch, but suppress all gdb stdout output.\n\ |
4b0ad762 AS |
846 | --return-child-result\n\ |
847 | GDB exit code will be the child's exit code.\n\ | |
c906108c SS |
848 | --cd=DIR Change current directory to DIR.\n\ |
849 | --command=FILE Execute GDB commands from FILE.\n\ | |
850 | --core=COREFILE Analyze the core dump COREFILE.\n\ | |
00546b04 | 851 | --pid=PID Attach to running process PID.\n\ |
defc6f8c TT |
852 | "), stream); |
853 | fputs_unfiltered (_("\ | |
c906108c SS |
854 | --dbx DBX compatibility mode.\n\ |
855 | --directory=DIR Search for source files in DIR.\n\ | |
856 | --epoch Output information used by epoch emacs-GDB interface.\n\ | |
857 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
858 | --fullname Output information used by emacs-GDB interface.\n\ | |
859 | --help Print this message.\n\ | |
defc6f8c TT |
860 | "), stream); |
861 | fputs_unfiltered (_("\ | |
8b93c638 JM |
862 | --interpreter=INTERP\n\ |
863 | Select a specific interpreter / user interface\n\ | |
defc6f8c TT |
864 | "), stream); |
865 | fputs_unfiltered (_("\ | |
f47b1503 | 866 | -l TIMEOUT Set timeout in seconds for remote debugging.\n\ |
c906108c | 867 | --nw Do not use a window interface.\n\ |
defc6f8c | 868 | --nx Do not read "), stream); |
96baa820 | 869 | fputs_unfiltered (gdbinit, stream); |
defc6f8c | 870 | fputs_unfiltered (_(" file.\n\ |
c906108c SS |
871 | --quiet Do not print version number on startup.\n\ |
872 | --readnow Fully read symbol files on first access.\n\ | |
defc6f8c TT |
873 | "), stream); |
874 | fputs_unfiltered (_("\ | |
c906108c SS |
875 | --se=FILE Use FILE as symbol file and executable file.\n\ |
876 | --symbols=SYMFILE Read symbols from SYMFILE.\n\ | |
877 | --tty=TTY Use TTY for input/output by the program being debugged.\n\ | |
defc6f8c | 878 | "), stream); |
c906108c | 879 | #if defined(TUI) |
defc6f8c | 880 | fputs_unfiltered (_("\ |
c906108c | 881 | --tui Use a terminal user interface.\n\ |
defc6f8c | 882 | "), stream); |
c906108c | 883 | #endif |
defc6f8c | 884 | fputs_unfiltered (_("\ |
c906108c SS |
885 | --version Print version information and then exit.\n\ |
886 | -w Use a window interface.\n\ | |
887 | --write Set writing into executable and core files.\n\ | |
888 | --xdb XDB compatibility mode.\n\ | |
defc6f8c | 889 | "), stream); |
defc6f8c | 890 | fputs_unfiltered (_("\n\ |
c906108c SS |
891 | For more information, type \"help\" from within GDB, or consult the\n\ |
892 | GDB manual (available as on-line info or a printed manual).\n\ | |
2df3850c | 893 | Report bugs to \"bug-gdb@gnu.org\".\ |
defc6f8c | 894 | "), stream); |
c906108c | 895 | } |