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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
4389a95a AC |
2 | |
3 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, | |
59773b4e | 4 | 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software |
4389a95a | 5 | 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 SS |
75 | |
76 | /* Whether to enable writing into executable and core files */ | |
77 | extern int write_files; | |
78 | ||
d9fcf2fb | 79 | static void print_gdb_help (struct ui_file *); |
c906108c SS |
80 | |
81 | /* These two are used to set the external editor commands when gdb is farming | |
82 | out files to be edited by another program. */ | |
83 | ||
c5aa993b | 84 | extern char *external_editor_command; |
c906108c | 85 | |
11cf8741 JM |
86 | /* Call command_loop. If it happens to return, pass that through as a |
87 | non-zero return status. */ | |
88 | ||
89 | static int | |
90 | captured_command_loop (void *data) | |
c906108c | 91 | { |
4389a95a | 92 | current_interp_command_loop (); |
11cf8741 JM |
93 | /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton |
94 | would clean things up (restoring the cleanup chain) to the state | |
95 | they were just prior to the call. Technically, this means that | |
e26cc349 | 96 | the do_cleanups() below is redundant. Unfortunately, many FUNCs |
11cf8741 JM |
97 | are not that well behaved. do_cleanups should either be replaced |
98 | with a do_cleanups call (to cover the problem) or an assertion | |
99 | check to detect bad FUNCs code. */ | |
100 | do_cleanups (ALL_CLEANUPS); | |
101 | /* If the command_loop returned, normally (rather than threw an | |
102 | error) we try to quit. If the quit is aborted, catch_errors() | |
103 | which called this catch the signal and restart the command | |
104 | loop. */ | |
105 | quit_command (NULL, instream == stdin); | |
106 | return 1; | |
107 | } | |
108 | ||
11cf8741 JM |
109 | static int |
110 | captured_main (void *data) | |
111 | { | |
112 | struct captured_main_args *context = data; | |
113 | int argc = context->argc; | |
114 | char **argv = context->argv; | |
c906108c SS |
115 | int count; |
116 | static int quiet = 0; | |
117 | static int batch = 0; | |
552c04a7 | 118 | static int set_args = 0; |
c906108c SS |
119 | |
120 | /* Pointers to various arguments from command line. */ | |
121 | char *symarg = NULL; | |
122 | char *execarg = NULL; | |
123 | char *corearg = NULL; | |
124 | char *cdarg = NULL; | |
125 | char *ttyarg = NULL; | |
126 | ||
127 | /* These are static so that we can take their address in an initializer. */ | |
128 | static int print_help; | |
129 | static int print_version; | |
130 | ||
131 | /* Pointers to all arguments of --command option. */ | |
132 | char **cmdarg; | |
133 | /* Allocated size of cmdarg. */ | |
134 | int cmdsize; | |
135 | /* Number of elements of cmdarg used. */ | |
136 | int ncmd; | |
137 | ||
138 | /* Indices of all arguments of --directory option. */ | |
139 | char **dirarg; | |
140 | /* Allocated size. */ | |
141 | int dirsize; | |
142 | /* Number of elements used. */ | |
143 | int ndir; | |
c5aa993b | 144 | |
c906108c SS |
145 | struct stat homebuf, cwdbuf; |
146 | char *homedir, *homeinit; | |
147 | ||
52f0bd74 | 148 | int i; |
c906108c SS |
149 | |
150 | long time_at_startup = get_run_time (); | |
151 | ||
0fbb3da7 TT |
152 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
153 | setlocale (LC_MESSAGES, ""); | |
154 | #endif | |
155 | #if defined (HAVE_SETLOCALE) | |
156 | setlocale (LC_CTYPE, ""); | |
157 | #endif | |
158 | bindtextdomain (PACKAGE, LOCALEDIR); | |
159 | textdomain (PACKAGE); | |
160 | ||
6dd77b81 RH |
161 | #ifdef HAVE_SBRK |
162 | lim_at_start = (char *) sbrk (0); | |
163 | #endif | |
164 | ||
c906108c SS |
165 | #if defined (ALIGN_STACK_ON_STARTUP) |
166 | i = (int) &count & 0x3; | |
167 | if (i != 0) | |
168 | alloca (4 - i); | |
169 | #endif | |
170 | ||
c906108c SS |
171 | cmdsize = 1; |
172 | cmdarg = (char **) xmalloc (cmdsize * sizeof (*cmdarg)); | |
173 | ncmd = 0; | |
174 | dirsize = 1; | |
175 | dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg)); | |
176 | ndir = 0; | |
177 | ||
178 | quit_flag = 0; | |
179 | line = (char *) xmalloc (linesize); | |
180 | line[0] = '\0'; /* Terminate saved (now empty) cmd line */ | |
181 | instream = stdin; | |
182 | ||
183 | getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
184 | current_directory = gdb_dirbuf; | |
185 | ||
da59e081 JM |
186 | gdb_stdout = stdio_fileopen (stdout); |
187 | gdb_stderr = stdio_fileopen (stderr); | |
188 | gdb_stdlog = gdb_stderr; /* for moment */ | |
189 | gdb_stdtarg = gdb_stderr; /* for moment */ | |
449092f6 CV |
190 | gdb_stdin = stdio_fileopen (stdin); |
191 | gdb_stdtargerr = gdb_stderr; /* for moment */ | |
192 | gdb_stdtargin = gdb_stdin; /* for moment */ | |
c906108c | 193 | |
2acceee2 JM |
194 | /* initialize error() */ |
195 | error_init (); | |
196 | ||
030292b7 DJ |
197 | /* Set the sysroot path. */ |
198 | #ifdef TARGET_SYSTEM_ROOT_RELOCATABLE | |
199 | gdb_sysroot = make_relative_prefix (argv[0], BINDIR, TARGET_SYSTEM_ROOT); | |
200 | if (gdb_sysroot) | |
201 | { | |
202 | struct stat s; | |
203 | int res = 0; | |
204 | ||
205 | if (stat (gdb_sysroot, &s) == 0) | |
206 | if (S_ISDIR (s.st_mode)) | |
207 | res = 1; | |
208 | ||
209 | if (res == 0) | |
210 | { | |
a84d24ee | 211 | xfree (gdb_sysroot); |
030292b7 DJ |
212 | gdb_sysroot = TARGET_SYSTEM_ROOT; |
213 | } | |
214 | } | |
215 | else | |
216 | gdb_sysroot = TARGET_SYSTEM_ROOT; | |
217 | #else | |
218 | #if defined (TARGET_SYSTEM_ROOT) | |
219 | gdb_sysroot = TARGET_SYSTEM_ROOT; | |
220 | #else | |
221 | gdb_sysroot = ""; | |
222 | #endif | |
223 | #endif | |
224 | ||
4389a95a | 225 | /* There will always be an interpreter. Either the one passed into |
e46e5ccd KS |
226 | this captured main, or one specified by the user at start up, or |
227 | the console. Initialize the interpreter to the one requested by | |
228 | the application. */ | |
229 | interpreter_p = xstrdup (context->interpreter_p); | |
4389a95a | 230 | |
c906108c SS |
231 | /* Parse arguments and options. */ |
232 | { | |
233 | int c; | |
234 | /* When var field is 0, use flag field to record the equivalent | |
235 | short option (or arbitrary numbers starting at 10 for those | |
236 | with no equivalent). */ | |
49c7e338 AC |
237 | enum { |
238 | OPT_SE = 10, | |
239 | OPT_CD, | |
240 | OPT_ANNOTATE, | |
241 | OPT_STATISTICS, | |
42fa7c0f AC |
242 | OPT_TUI, |
243 | OPT_NOWINDOWS, | |
244 | OPT_WINDOWS | |
49c7e338 | 245 | }; |
c906108c | 246 | static struct option long_options[] = |
c5aa993b | 247 | { |
c906108c | 248 | #if defined(TUI) |
49c7e338 | 249 | {"tui", no_argument, 0, OPT_TUI}, |
c906108c | 250 | #endif |
c5aa993b JM |
251 | {"xdb", no_argument, &xdb_commands, 1}, |
252 | {"dbx", no_argument, &dbx_commands, 1}, | |
253 | {"readnow", no_argument, &readnow_symbol_files, 1}, | |
254 | {"r", no_argument, &readnow_symbol_files, 1}, | |
c5aa993b JM |
255 | {"quiet", no_argument, &quiet, 1}, |
256 | {"q", no_argument, &quiet, 1}, | |
257 | {"silent", no_argument, &quiet, 1}, | |
258 | {"nx", no_argument, &inhibit_gdbinit, 1}, | |
259 | {"n", no_argument, &inhibit_gdbinit, 1}, | |
260 | {"batch", no_argument, &batch, 1}, | |
261 | {"epoch", no_argument, &epoch_interface, 1}, | |
262 | ||
263 | /* This is a synonym for "--annotate=1". --annotate is now preferred, | |
264 | but keep this here for a long time because people will be running | |
265 | emacses which use --fullname. */ | |
266 | {"fullname", no_argument, 0, 'f'}, | |
267 | {"f", no_argument, 0, 'f'}, | |
268 | ||
49c7e338 | 269 | {"annotate", required_argument, 0, OPT_ANNOTATE}, |
c5aa993b | 270 | {"help", no_argument, &print_help, 1}, |
49c7e338 | 271 | {"se", required_argument, 0, OPT_SE}, |
c5aa993b JM |
272 | {"symbols", required_argument, 0, 's'}, |
273 | {"s", required_argument, 0, 's'}, | |
274 | {"exec", required_argument, 0, 'e'}, | |
275 | {"e", required_argument, 0, 'e'}, | |
276 | {"core", required_argument, 0, 'c'}, | |
277 | {"c", required_argument, 0, 'c'}, | |
00546b04 MS |
278 | {"pid", required_argument, 0, 'p'}, |
279 | {"p", required_argument, 0, 'p'}, | |
c5aa993b JM |
280 | {"command", required_argument, 0, 'x'}, |
281 | {"version", no_argument, &print_version, 1}, | |
282 | {"x", required_argument, 0, 'x'}, | |
3fc11d3e JM |
283 | #ifdef GDBTK |
284 | {"tclcommand", required_argument, 0, 'z'}, | |
285 | {"enable-external-editor", no_argument, 0, 'y'}, | |
286 | {"editor-command", required_argument, 0, 'w'}, | |
287 | #endif | |
8b93c638 JM |
288 | {"ui", required_argument, 0, 'i'}, |
289 | {"interpreter", required_argument, 0, 'i'}, | |
290 | {"i", required_argument, 0, 'i'}, | |
c5aa993b | 291 | {"directory", required_argument, 0, 'd'}, |
c4093a6a | 292 | {"d", required_argument, 0, 'd'}, |
49c7e338 | 293 | {"cd", required_argument, 0, OPT_CD}, |
c5aa993b JM |
294 | {"tty", required_argument, 0, 't'}, |
295 | {"baud", required_argument, 0, 'b'}, | |
296 | {"b", required_argument, 0, 'b'}, | |
42fa7c0f AC |
297 | {"nw", no_argument, NULL, OPT_NOWINDOWS}, |
298 | {"nowindows", no_argument, NULL, OPT_NOWINDOWS}, | |
299 | {"w", no_argument, NULL, OPT_WINDOWS}, | |
300 | {"windows", no_argument, NULL, OPT_WINDOWS}, | |
49c7e338 | 301 | {"statistics", no_argument, 0, OPT_STATISTICS}, |
c5aa993b | 302 | {"write", no_argument, &write_files, 1}, |
552c04a7 | 303 | {"args", no_argument, &set_args, 1}, |
f47b1503 | 304 | {"l", required_argument, 0, 'l'}, |
c5aa993b JM |
305 | {0, no_argument, 0, 0} |
306 | }; | |
c906108c SS |
307 | |
308 | while (1) | |
309 | { | |
310 | int option_index; | |
311 | ||
312 | c = getopt_long_only (argc, argv, "", | |
313 | long_options, &option_index); | |
552c04a7 | 314 | if (c == EOF || set_args) |
c906108c SS |
315 | break; |
316 | ||
317 | /* Long option that takes an argument. */ | |
318 | if (c == 0 && long_options[option_index].flag == 0) | |
319 | c = long_options[option_index].val; | |
320 | ||
321 | switch (c) | |
322 | { | |
323 | case 0: | |
324 | /* Long option that just sets a flag. */ | |
325 | break; | |
49c7e338 | 326 | case OPT_SE: |
c906108c SS |
327 | symarg = optarg; |
328 | execarg = optarg; | |
329 | break; | |
49c7e338 | 330 | case OPT_CD: |
c906108c SS |
331 | cdarg = optarg; |
332 | break; | |
49c7e338 | 333 | case OPT_ANNOTATE: |
c906108c SS |
334 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ |
335 | annotation_level = atoi (optarg); | |
336 | break; | |
49c7e338 | 337 | case OPT_STATISTICS: |
c906108c SS |
338 | /* Enable the display of both time and space usage. */ |
339 | display_time = 1; | |
340 | display_space = 1; | |
341 | break; | |
49c7e338 | 342 | case OPT_TUI: |
021e7609 AC |
343 | /* --tui is equivalent to -i=tui. */ |
344 | xfree (interpreter_p); | |
345 | interpreter_p = xstrdup ("tui"); | |
346 | break; | |
42fa7c0f AC |
347 | case OPT_WINDOWS: |
348 | /* FIXME: cagney/2003-03-01: Not sure if this option is | |
349 | actually useful, and if it is, what it should do. */ | |
350 | use_windows = 1; | |
351 | break; | |
352 | case OPT_NOWINDOWS: | |
353 | /* -nw is equivalent to -i=console. */ | |
354 | xfree (interpreter_p); | |
355 | interpreter_p = xstrdup (INTERP_CONSOLE); | |
356 | use_windows = 0; | |
357 | break; | |
c906108c SS |
358 | case 'f': |
359 | annotation_level = 1; | |
360 | /* We have probably been invoked from emacs. Disable window interface. */ | |
361 | use_windows = 0; | |
362 | break; | |
363 | case 's': | |
364 | symarg = optarg; | |
365 | break; | |
366 | case 'e': | |
367 | execarg = optarg; | |
368 | break; | |
369 | case 'c': | |
370 | corearg = optarg; | |
371 | break; | |
00546b04 MS |
372 | case 'p': |
373 | /* "corearg" is shared by "--core" and "--pid" */ | |
374 | corearg = optarg; | |
375 | break; | |
c906108c SS |
376 | case 'x': |
377 | cmdarg[ncmd++] = optarg; | |
378 | if (ncmd >= cmdsize) | |
379 | { | |
380 | cmdsize *= 2; | |
c5aa993b | 381 | cmdarg = (char **) xrealloc ((char *) cmdarg, |
c906108c SS |
382 | cmdsize * sizeof (*cmdarg)); |
383 | } | |
384 | break; | |
3fc11d3e JM |
385 | #ifdef GDBTK |
386 | case 'z': | |
387 | { | |
a14ed312 | 388 | extern int gdbtk_test (char *); |
3fc11d3e JM |
389 | if (!gdbtk_test (optarg)) |
390 | { | |
defc6f8c | 391 | fprintf_unfiltered (gdb_stderr, _("%s: unable to load tclcommand file \"%s\""), |
3fc11d3e JM |
392 | argv[0], optarg); |
393 | exit (1); | |
394 | } | |
395 | break; | |
396 | } | |
397 | case 'y': | |
78f49586 TT |
398 | /* Backwards compatibility only. */ |
399 | break; | |
3fc11d3e JM |
400 | case 'w': |
401 | { | |
3fc11d3e JM |
402 | external_editor_command = xstrdup (optarg); |
403 | break; | |
404 | } | |
405 | #endif /* GDBTK */ | |
fb40c209 | 406 | case 'i': |
4389a95a AC |
407 | xfree (interpreter_p); |
408 | interpreter_p = xstrdup (optarg); | |
fb40c209 | 409 | break; |
c906108c SS |
410 | case 'd': |
411 | dirarg[ndir++] = optarg; | |
412 | if (ndir >= dirsize) | |
413 | { | |
414 | dirsize *= 2; | |
c5aa993b | 415 | dirarg = (char **) xrealloc ((char *) dirarg, |
c906108c SS |
416 | dirsize * sizeof (*dirarg)); |
417 | } | |
418 | break; | |
419 | case 't': | |
420 | ttyarg = optarg; | |
421 | break; | |
422 | case 'q': | |
423 | quiet = 1; | |
424 | break; | |
425 | case 'b': | |
426 | { | |
427 | int i; | |
428 | char *p; | |
429 | ||
430 | i = strtol (optarg, &p, 0); | |
431 | if (i == 0 && p == optarg) | |
432 | ||
433 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 434 | current_target) until after initialize_all_files(). */ |
c906108c SS |
435 | |
436 | fprintf_unfiltered | |
437 | (gdb_stderr, | |
defc6f8c | 438 | _("warning: could not set baud rate to `%s'.\n"), optarg); |
c906108c SS |
439 | else |
440 | baud_rate = i; | |
441 | } | |
046ca86a | 442 | break; |
c906108c SS |
443 | case 'l': |
444 | { | |
445 | int i; | |
446 | char *p; | |
447 | ||
448 | i = strtol (optarg, &p, 0); | |
449 | if (i == 0 && p == optarg) | |
450 | ||
451 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 452 | current_target) until after initialize_all_files(). */ |
c906108c SS |
453 | |
454 | fprintf_unfiltered | |
455 | (gdb_stderr, | |
defc6f8c | 456 | _("warning: could not set timeout limit to `%s'.\n"), optarg); |
c906108c SS |
457 | else |
458 | remote_timeout = i; | |
459 | } | |
460 | break; | |
461 | ||
c906108c SS |
462 | case '?': |
463 | fprintf_unfiltered (gdb_stderr, | |
defc6f8c | 464 | _("Use `%s --help' for a complete list of options.\n"), |
c5aa993b | 465 | argv[0]); |
c906108c SS |
466 | exit (1); |
467 | } | |
468 | } | |
469 | ||
470 | /* If --help or --version, disable window interface. */ | |
471 | if (print_help || print_version) | |
472 | { | |
473 | use_windows = 0; | |
c906108c SS |
474 | } |
475 | ||
552c04a7 TT |
476 | if (set_args) |
477 | { | |
478 | /* The remaining options are the command-line options for the | |
479 | inferior. The first one is the sym/exec file, and the rest | |
480 | are arguments. */ | |
481 | if (optind >= argc) | |
482 | { | |
483 | fprintf_unfiltered (gdb_stderr, | |
defc6f8c | 484 | _("%s: `--args' specified but no program specified\n"), |
552c04a7 TT |
485 | argv[0]); |
486 | exit (1); | |
487 | } | |
488 | symarg = argv[optind]; | |
489 | execarg = argv[optind]; | |
490 | ++optind; | |
491 | set_inferior_args_vector (argc - optind, &argv[optind]); | |
492 | } | |
493 | else | |
494 | { | |
495 | /* OK, that's all the options. The other arguments are filenames. */ | |
496 | count = 0; | |
497 | for (; optind < argc; optind++) | |
498 | switch (++count) | |
499 | { | |
500 | case 1: | |
501 | symarg = argv[optind]; | |
502 | execarg = argv[optind]; | |
503 | break; | |
504 | case 2: | |
00546b04 MS |
505 | /* The documentation says this can be a "ProcID" as well. |
506 | We will try it as both a corefile and a pid. */ | |
552c04a7 TT |
507 | corearg = argv[optind]; |
508 | break; | |
509 | case 3: | |
510 | fprintf_unfiltered (gdb_stderr, | |
defc6f8c | 511 | _("Excess command line arguments ignored. (%s%s)\n"), |
552c04a7 TT |
512 | argv[optind], (optind == argc - 1) ? "" : " ..."); |
513 | break; | |
514 | } | |
515 | } | |
c906108c SS |
516 | if (batch) |
517 | quiet = 1; | |
518 | } | |
519 | ||
0f71a2f6 | 520 | /* Initialize all files. Give the interpreter a chance to take |
9a4105ab | 521 | control of the console via the deprecated_init_ui_hook(). */ |
c906108c SS |
522 | gdb_init (argv[0]); |
523 | ||
524 | /* Do these (and anything which might call wrap_here or *_filtered) | |
4389a95a AC |
525 | after initialize_all_files() but before the interpreter has been |
526 | installed. Otherwize the help/version messages will be eaten by | |
527 | the interpreter's output handler. */ | |
528 | ||
c906108c SS |
529 | if (print_version) |
530 | { | |
531 | print_gdb_version (gdb_stdout); | |
532 | wrap_here (""); | |
533 | printf_filtered ("\n"); | |
534 | exit (0); | |
535 | } | |
536 | ||
537 | if (print_help) | |
538 | { | |
539 | print_gdb_help (gdb_stdout); | |
540 | fputs_unfiltered ("\n", gdb_stdout); | |
541 | exit (0); | |
542 | } | |
543 | ||
4389a95a AC |
544 | /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets |
545 | GDB retain the old MI1 interpreter startup behavior. Output the | |
546 | copyright message before the interpreter is installed. That way | |
547 | it isn't encapsulated in MI output. */ | |
548 | if (!quiet && strcmp (interpreter_p, INTERP_MI1) == 0) | |
549 | { | |
550 | /* Print all the junk at the top, with trailing "..." if we are about | |
551 | to read a symbol file (possibly slowly). */ | |
552 | print_gdb_version (gdb_stdout); | |
553 | if (symarg) | |
554 | printf_filtered (".."); | |
555 | wrap_here (""); | |
556 | gdb_flush (gdb_stdout); /* Force to screen during slow operations */ | |
557 | } | |
558 | ||
559 | ||
560 | /* Install the default UI. All the interpreters should have had a | |
561 | look at things by now. Initialize the default interpreter. */ | |
562 | ||
563 | { | |
564 | /* Find it. */ | |
565 | struct interp *interp = interp_lookup (interpreter_p); | |
566 | if (interp == NULL) | |
864dbc90 | 567 | error ("Interpreter `%s' unrecognized", interpreter_p); |
4389a95a AC |
568 | /* Install it. */ |
569 | if (!interp_set (interp)) | |
570 | { | |
571 | fprintf_unfiltered (gdb_stderr, | |
572 | "Interpreter `%s' failed to initialize.\n", | |
573 | interpreter_p); | |
574 | exit (1); | |
575 | } | |
576 | } | |
577 | ||
578 | /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets | |
579 | GDB retain the old MI1 interpreter startup behavior. Output the | |
580 | copyright message after the interpreter is installed when it is | |
581 | any sane interpreter. */ | |
582 | if (!quiet && !current_interp_named_p (INTERP_MI1)) | |
c906108c SS |
583 | { |
584 | /* Print all the junk at the top, with trailing "..." if we are about | |
c5aa993b | 585 | to read a symbol file (possibly slowly). */ |
c906108c SS |
586 | print_gdb_version (gdb_stdout); |
587 | if (symarg) | |
588 | printf_filtered (".."); | |
c5aa993b JM |
589 | wrap_here (""); |
590 | gdb_flush (gdb_stdout); /* Force to screen during slow operations */ | |
c906108c SS |
591 | } |
592 | ||
593 | error_pre_print = "\n\n"; | |
594 | quit_pre_print = error_pre_print; | |
595 | ||
596 | /* We may get more than one warning, don't double space all of them... */ | |
defc6f8c | 597 | warning_pre_print = _("\nwarning: "); |
c906108c SS |
598 | |
599 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done | |
600 | *before* all the command line arguments are processed; it sets | |
601 | global parameters, which are independent of what file you are | |
602 | debugging or what directory you are in. */ | |
c5aa993b | 603 | homedir = getenv ("HOME"); |
c906108c SS |
604 | if (homedir) |
605 | { | |
606 | homeinit = (char *) alloca (strlen (homedir) + | |
607 | strlen (gdbinit) + 10); | |
608 | strcpy (homeinit, homedir); | |
609 | strcat (homeinit, "/"); | |
610 | strcat (homeinit, gdbinit); | |
611 | ||
612 | if (!inhibit_gdbinit) | |
613 | { | |
11cf8741 | 614 | catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL); |
c906108c | 615 | } |
c906108c SS |
616 | |
617 | /* Do stats; no need to do them elsewhere since we'll only | |
c5aa993b JM |
618 | need them if homedir is set. Make sure that they are |
619 | zero in case one of them fails (this guarantees that they | |
620 | won't match if either exists). */ | |
621 | ||
c906108c SS |
622 | memset (&homebuf, 0, sizeof (struct stat)); |
623 | memset (&cwdbuf, 0, sizeof (struct stat)); | |
c5aa993b | 624 | |
c906108c | 625 | stat (homeinit, &homebuf); |
c5aa993b JM |
626 | stat (gdbinit, &cwdbuf); /* We'll only need this if |
627 | homedir was set. */ | |
c906108c SS |
628 | } |
629 | ||
630 | /* Now perform all the actions indicated by the arguments. */ | |
631 | if (cdarg != NULL) | |
632 | { | |
11cf8741 | 633 | catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL); |
c906108c | 634 | } |
c906108c SS |
635 | |
636 | for (i = 0; i < ndir; i++) | |
11cf8741 | 637 | catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL); |
b8c9b27d | 638 | xfree (dirarg); |
c906108c SS |
639 | |
640 | if (execarg != NULL | |
641 | && symarg != NULL | |
5cb316ef | 642 | && strcmp (execarg, symarg) == 0) |
c906108c | 643 | { |
11cf8741 JM |
644 | /* The exec file and the symbol-file are the same. If we can't |
645 | open it, better only print one error message. | |
646 | catch_command_errors returns non-zero on success! */ | |
1adeb98a FN |
647 | if (catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL)) |
648 | catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); | |
c906108c SS |
649 | } |
650 | else | |
651 | { | |
652 | if (execarg != NULL) | |
1adeb98a | 653 | catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL); |
c906108c | 654 | if (symarg != NULL) |
1adeb98a | 655 | catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); |
c906108c | 656 | } |
c906108c SS |
657 | |
658 | /* After the symbol file has been read, print a newline to get us | |
659 | beyond the copyright line... But errors should still set off | |
660 | the error message with a (single) blank line. */ | |
661 | if (!quiet) | |
662 | printf_filtered ("\n"); | |
663 | error_pre_print = "\n"; | |
664 | quit_pre_print = error_pre_print; | |
defc6f8c | 665 | warning_pre_print = _("\nwarning: "); |
c906108c SS |
666 | |
667 | if (corearg != NULL) | |
668 | { | |
00546b04 MS |
669 | /* corearg may be either a corefile or a pid. |
670 | If its first character is a digit, try attach first | |
671 | and then corefile. Otherwise try corefile first. */ | |
672 | ||
673 | if (isdigit (corearg[0])) | |
11cf8741 | 674 | { |
00546b04 MS |
675 | if (catch_command_errors (attach_command, corearg, |
676 | !batch, RETURN_MASK_ALL) == 0) | |
677 | catch_command_errors (core_file_command, corearg, | |
678 | !batch, RETURN_MASK_ALL); | |
11cf8741 | 679 | } |
00546b04 MS |
680 | else /* Can't be a pid, better be a corefile. */ |
681 | catch_command_errors (core_file_command, corearg, | |
682 | !batch, RETURN_MASK_ALL); | |
c906108c | 683 | } |
c906108c SS |
684 | |
685 | if (ttyarg != NULL) | |
11cf8741 | 686 | catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL); |
c906108c | 687 | |
c906108c SS |
688 | /* Error messages should no longer be distinguished with extra output. */ |
689 | error_pre_print = NULL; | |
690 | quit_pre_print = NULL; | |
defc6f8c | 691 | warning_pre_print = _("warning: "); |
c906108c SS |
692 | |
693 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
694 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
c5aa993b | 695 | |
c906108c SS |
696 | if (!homedir |
697 | || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat))) | |
698 | if (!inhibit_gdbinit) | |
699 | { | |
11cf8741 | 700 | catch_command_errors (source_command, gdbinit, 0, RETURN_MASK_ALL); |
c906108c | 701 | } |
c906108c SS |
702 | |
703 | for (i = 0; i < ncmd; i++) | |
704 | { | |
11cf8741 JM |
705 | #if 0 |
706 | /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that | |
707 | expanded into a call to setjmp(). */ | |
708 | if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */ | |
c906108c | 709 | { |
b83266a0 SS |
710 | /* NOTE: I am commenting this out, because it is not clear |
711 | where this feature is used. It is very old and | |
c5aa993b | 712 | undocumented. ezannoni: 1999-05-04 */ |
b83266a0 | 713 | #if 0 |
c906108c SS |
714 | if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0') |
715 | read_command_file (stdin); | |
716 | else | |
b83266a0 | 717 | #endif |
c906108c SS |
718 | source_command (cmdarg[i], !batch); |
719 | do_cleanups (ALL_CLEANUPS); | |
720 | } | |
11cf8741 JM |
721 | #endif |
722 | catch_command_errors (source_command, cmdarg[i], !batch, RETURN_MASK_ALL); | |
c906108c | 723 | } |
b8c9b27d | 724 | xfree (cmdarg); |
c906108c SS |
725 | |
726 | /* Read in the old history after all the command files have been read. */ | |
c5aa993b | 727 | init_history (); |
c906108c SS |
728 | |
729 | if (batch) | |
730 | { | |
7ac4ac06 AC |
731 | if (attach_flag) |
732 | /* Either there was a problem executing the command in the | |
733 | batch file aborted early, or the batch file forgot to do an | |
734 | explicit detach. Explicitly detach the inferior ensuring | |
735 | that there are no zombies. */ | |
736 | target_detach (NULL, 0); | |
737 | ||
c906108c SS |
738 | /* We have hit the end of the batch file. */ |
739 | exit (0); | |
740 | } | |
741 | ||
742 | /* Do any host- or target-specific hacks. This is used for i960 targets | |
743 | to force the user to set a nindy target and spec its parameters. */ | |
744 | ||
745 | #ifdef BEFORE_MAIN_LOOP_HOOK | |
746 | BEFORE_MAIN_LOOP_HOOK; | |
747 | #endif | |
748 | ||
c906108c SS |
749 | /* Show time and/or space usage. */ |
750 | ||
751 | if (display_time) | |
752 | { | |
753 | long init_time = get_run_time () - time_at_startup; | |
754 | ||
defc6f8c | 755 | printf_unfiltered (_("Startup time: %ld.%06ld\n"), |
c906108c SS |
756 | init_time / 1000000, init_time % 1000000); |
757 | } | |
758 | ||
759 | if (display_space) | |
760 | { | |
761 | #ifdef HAVE_SBRK | |
762 | extern char **environ; | |
763 | char *lim = (char *) sbrk (0); | |
764 | ||
defc6f8c | 765 | printf_unfiltered (_("Startup size: data size %ld\n"), |
c906108c SS |
766 | (long) (lim - (char *) &environ)); |
767 | #endif | |
768 | } | |
769 | ||
11cf8741 JM |
770 | #if 0 |
771 | /* FIXME: cagney/1999-11-06: The original main loop was like: */ | |
c906108c SS |
772 | while (1) |
773 | { | |
774 | if (!SET_TOP_LEVEL ()) | |
775 | { | |
c5aa993b | 776 | do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */ |
c906108c SS |
777 | /* GUIs generally have their own command loop, mainloop, or whatever. |
778 | This is a good place to gain control because many error | |
779 | conditions will end up here via longjmp(). */ | |
9a4105ab AC |
780 | if (deprecated_command_loop_hook) |
781 | deprecated_command_loop_hook (); | |
c906108c | 782 | else |
9a4105ab | 783 | deprecated_command_loop (); |
c5aa993b | 784 | quit_command ((char *) 0, instream == stdin); |
c906108c SS |
785 | } |
786 | } | |
11cf8741 JM |
787 | /* NOTE: If the command_loop() returned normally, the loop would |
788 | attempt to exit by calling the function quit_command(). That | |
789 | function would either call exit() or throw an error returning | |
790 | control to SET_TOP_LEVEL. */ | |
791 | /* NOTE: The function do_cleanups() was called once each time round | |
792 | the loop. The usefulness of the call isn't clear. If an error | |
793 | was thrown, everything would have already been cleaned up. If | |
794 | command_loop() returned normally and quit_command() was called, | |
795 | either exit() or error() (again cleaning up) would be called. */ | |
796 | #endif | |
797 | /* NOTE: cagney/1999-11-07: There is probably no reason for not | |
798 | moving this loop and the code found in captured_command_loop() | |
799 | into the command_loop() proper. The main thing holding back that | |
800 | change - SET_TOP_LEVEL() - has been eliminated. */ | |
801 | while (1) | |
802 | { | |
803 | catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); | |
804 | } | |
11cf8741 JM |
805 | /* No exit -- exit is through quit_command. */ |
806 | } | |
c906108c | 807 | |
11cf8741 | 808 | int |
f15ab4a7 | 809 | gdb_main (struct captured_main_args *args) |
11cf8741 | 810 | { |
f15ab4a7 AC |
811 | use_windows = args->use_windows; |
812 | catch_errors (captured_main, args, "", RETURN_MASK_ALL); | |
864dbc90 AC |
813 | /* The only way to end up here is by an error (normal exit is |
814 | handled by quit_force()), hence always return an error status. */ | |
815 | return 1; | |
c906108c SS |
816 | } |
817 | ||
11cf8741 | 818 | |
c906108c SS |
819 | /* Don't use *_filtered for printing help. We don't want to prompt |
820 | for continue no matter how small the screen or how much we're going | |
821 | to print. */ | |
822 | ||
823 | static void | |
d9fcf2fb | 824 | print_gdb_help (struct ui_file *stream) |
c906108c | 825 | { |
defc6f8c | 826 | fputs_unfiltered (_("\ |
c906108c | 827 | This is the GNU debugger. Usage:\n\n\ |
552c04a7 TT |
828 | gdb [options] [executable-file [core-file or process-id]]\n\ |
829 | gdb [options] --args executable-file [inferior-arguments ...]\n\n\ | |
c906108c | 830 | Options:\n\n\ |
defc6f8c TT |
831 | "), stream); |
832 | fputs_unfiltered (_("\ | |
552c04a7 | 833 | --args Arguments after executable-file are passed to inferior\n\ |
defc6f8c TT |
834 | "), stream); |
835 | fputs_unfiltered (_("\ | |
0f71a2f6 | 836 | --[no]async Enable (disable) asynchronous version of CLI\n\ |
defc6f8c TT |
837 | "), stream); |
838 | fputs_unfiltered (_("\ | |
c906108c SS |
839 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ |
840 | --batch Exit after processing options.\n\ | |
841 | --cd=DIR Change current directory to DIR.\n\ | |
842 | --command=FILE Execute GDB commands from FILE.\n\ | |
843 | --core=COREFILE Analyze the core dump COREFILE.\n\ | |
00546b04 | 844 | --pid=PID Attach to running process PID.\n\ |
defc6f8c TT |
845 | "), stream); |
846 | fputs_unfiltered (_("\ | |
c906108c SS |
847 | --dbx DBX compatibility mode.\n\ |
848 | --directory=DIR Search for source files in DIR.\n\ | |
849 | --epoch Output information used by epoch emacs-GDB interface.\n\ | |
850 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
851 | --fullname Output information used by emacs-GDB interface.\n\ | |
852 | --help Print this message.\n\ | |
defc6f8c TT |
853 | "), stream); |
854 | fputs_unfiltered (_("\ | |
8b93c638 JM |
855 | --interpreter=INTERP\n\ |
856 | Select a specific interpreter / user interface\n\ | |
defc6f8c TT |
857 | "), stream); |
858 | fputs_unfiltered (_("\ | |
f47b1503 | 859 | -l TIMEOUT Set timeout in seconds for remote debugging.\n\ |
c906108c SS |
860 | --mapped Use mapped symbol files if supported on this system.\n\ |
861 | --nw Do not use a window interface.\n\ | |
defc6f8c | 862 | --nx Do not read "), stream); |
96baa820 | 863 | fputs_unfiltered (gdbinit, stream); |
defc6f8c | 864 | fputs_unfiltered (_(" file.\n\ |
c906108c SS |
865 | --quiet Do not print version number on startup.\n\ |
866 | --readnow Fully read symbol files on first access.\n\ | |
defc6f8c TT |
867 | "), stream); |
868 | fputs_unfiltered (_("\ | |
c906108c SS |
869 | --se=FILE Use FILE as symbol file and executable file.\n\ |
870 | --symbols=SYMFILE Read symbols from SYMFILE.\n\ | |
871 | --tty=TTY Use TTY for input/output by the program being debugged.\n\ | |
defc6f8c | 872 | "), stream); |
c906108c | 873 | #if defined(TUI) |
defc6f8c | 874 | fputs_unfiltered (_("\ |
c906108c | 875 | --tui Use a terminal user interface.\n\ |
defc6f8c | 876 | "), stream); |
c906108c | 877 | #endif |
defc6f8c | 878 | fputs_unfiltered (_("\ |
c906108c SS |
879 | --version Print version information and then exit.\n\ |
880 | -w Use a window interface.\n\ | |
881 | --write Set writing into executable and core files.\n\ | |
882 | --xdb XDB compatibility mode.\n\ | |
defc6f8c | 883 | "), stream); |
defc6f8c | 884 | fputs_unfiltered (_("\n\ |
c906108c SS |
885 | For more information, type \"help\" from within GDB, or consult the\n\ |
886 | GDB manual (available as on-line info or a printed manual).\n\ | |
2df3850c | 887 | Report bugs to \"bug-gdb@gnu.org\".\ |
defc6f8c | 888 | "), stream); |
c906108c | 889 | } |