Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
d9fcf2fb | 2 | Copyright 1986-1995, 1999-2000 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
c5aa993b JM |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | #include "defs.h" | |
c906108c SS |
22 | #include "top.h" |
23 | #include "target.h" | |
24 | #include "inferior.h" | |
1adeb98a FN |
25 | #include "symfile.h" |
26 | #include "gdbcore.h" | |
c906108c SS |
27 | |
28 | #include "getopt.h" | |
29 | ||
30 | #include <sys/types.h> | |
31 | #include "gdb_stat.h" | |
32 | #include <ctype.h> | |
33 | ||
34 | #include "gdb_string.h" | |
9e0b60a8 | 35 | #include "event-loop.h" |
8b93c638 | 36 | #include "ui-out.h" |
da59e081 JM |
37 | #if defined (TUI) || defined (GDBTK) |
38 | /* FIXME: cagney/2000-01-31: This #include is to allow older code such | |
39 | as that found in the TUI to continue to build. */ | |
40 | #include "tui/tui-file.h" | |
41 | #endif | |
c906108c | 42 | |
c906108c SS |
43 | /* If nonzero, display time usage both at startup and for each command. */ |
44 | ||
45 | int display_time; | |
46 | ||
47 | /* If nonzero, display space usage both at startup and for each command. */ | |
48 | ||
49 | int display_space; | |
50 | ||
cd0fc7c3 | 51 | /* Whether this is the async version or not. The async version is |
c5aa993b JM |
52 | invoked on the command line with the -nw --async options. In this |
53 | version, the usual command_loop is substituted by and event loop which | |
54 | processes UI events asynchronously. */ | |
6426a772 | 55 | int event_loop_p = 1; |
cd0fc7c3 | 56 | |
fb40c209 AC |
57 | #ifdef UI_OUT |
58 | /* Has an interpreter been specified and if so, which. */ | |
59 | char *interpreter_p; | |
60 | #endif | |
61 | ||
c906108c SS |
62 | /* Whether this is the command line version or not */ |
63 | int tui_version = 0; | |
64 | ||
65 | /* Whether xdb commands will be handled */ | |
66 | int xdb_commands = 0; | |
67 | ||
68 | /* Whether dbx commands will be handled */ | |
69 | int dbx_commands = 0; | |
70 | ||
d9fcf2fb JM |
71 | struct ui_file *gdb_stdout; |
72 | struct ui_file *gdb_stderr; | |
73 | struct ui_file *gdb_stdlog; | |
74 | struct ui_file *gdb_stdtarg; | |
c906108c | 75 | |
2acceee2 JM |
76 | /* Used to initialize error() - defined in utils.c */ |
77 | ||
78 | extern void error_init (void); | |
79 | ||
c906108c SS |
80 | /* Whether to enable writing into executable and core files */ |
81 | extern int write_files; | |
82 | ||
d9fcf2fb | 83 | static void print_gdb_help (struct ui_file *); |
c906108c SS |
84 | |
85 | /* These two are used to set the external editor commands when gdb is farming | |
86 | out files to be edited by another program. */ | |
87 | ||
88 | extern int enable_external_editor; | |
c5aa993b | 89 | extern char *external_editor_command; |
c906108c SS |
90 | |
91 | #ifdef __CYGWIN__ | |
c5aa993b JM |
92 | #include <windows.h> /* for MAX_PATH */ |
93 | #include <sys/cygwin.h> /* for cygwin32_conv_to_posix_path */ | |
c906108c SS |
94 | #endif |
95 | ||
11cf8741 JM |
96 | /* Call command_loop. If it happens to return, pass that through as a |
97 | non-zero return status. */ | |
98 | ||
99 | static int | |
100 | captured_command_loop (void *data) | |
c906108c | 101 | { |
11cf8741 JM |
102 | if (command_loop_hook == NULL) |
103 | command_loop (); | |
104 | else | |
105 | command_loop_hook (); | |
106 | /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton | |
107 | would clean things up (restoring the cleanup chain) to the state | |
108 | they were just prior to the call. Technically, this means that | |
e26cc349 | 109 | the do_cleanups() below is redundant. Unfortunately, many FUNCs |
11cf8741 JM |
110 | are not that well behaved. do_cleanups should either be replaced |
111 | with a do_cleanups call (to cover the problem) or an assertion | |
112 | check to detect bad FUNCs code. */ | |
113 | do_cleanups (ALL_CLEANUPS); | |
114 | /* If the command_loop returned, normally (rather than threw an | |
115 | error) we try to quit. If the quit is aborted, catch_errors() | |
116 | which called this catch the signal and restart the command | |
117 | loop. */ | |
118 | quit_command (NULL, instream == stdin); | |
119 | return 1; | |
120 | } | |
121 | ||
122 | struct captured_main_args | |
123 | { | |
124 | int argc; | |
125 | char **argv; | |
126 | }; | |
127 | ||
128 | static int | |
129 | captured_main (void *data) | |
130 | { | |
131 | struct captured_main_args *context = data; | |
132 | int argc = context->argc; | |
133 | char **argv = context->argv; | |
c906108c SS |
134 | int count; |
135 | static int quiet = 0; | |
136 | static int batch = 0; | |
137 | ||
138 | /* Pointers to various arguments from command line. */ | |
139 | char *symarg = NULL; | |
140 | char *execarg = NULL; | |
141 | char *corearg = NULL; | |
142 | char *cdarg = NULL; | |
143 | char *ttyarg = NULL; | |
144 | ||
145 | /* These are static so that we can take their address in an initializer. */ | |
146 | static int print_help; | |
147 | static int print_version; | |
148 | ||
149 | /* Pointers to all arguments of --command option. */ | |
150 | char **cmdarg; | |
151 | /* Allocated size of cmdarg. */ | |
152 | int cmdsize; | |
153 | /* Number of elements of cmdarg used. */ | |
154 | int ncmd; | |
155 | ||
156 | /* Indices of all arguments of --directory option. */ | |
157 | char **dirarg; | |
158 | /* Allocated size. */ | |
159 | int dirsize; | |
160 | /* Number of elements used. */ | |
161 | int ndir; | |
c5aa993b | 162 | |
c906108c SS |
163 | struct stat homebuf, cwdbuf; |
164 | char *homedir, *homeinit; | |
165 | ||
166 | register int i; | |
167 | ||
168 | long time_at_startup = get_run_time (); | |
169 | ||
c906108c SS |
170 | START_PROGRESS (argv[0], 0); |
171 | ||
172 | #ifdef MPW | |
173 | /* Do all Mac-specific setup. */ | |
174 | mac_init (); | |
175 | #endif /* MPW */ | |
176 | ||
177 | /* This needs to happen before the first use of malloc. */ | |
178 | init_malloc ((PTR) NULL); | |
179 | ||
180 | #if defined (ALIGN_STACK_ON_STARTUP) | |
181 | i = (int) &count & 0x3; | |
182 | if (i != 0) | |
183 | alloca (4 - i); | |
184 | #endif | |
185 | ||
c906108c SS |
186 | cmdsize = 1; |
187 | cmdarg = (char **) xmalloc (cmdsize * sizeof (*cmdarg)); | |
188 | ncmd = 0; | |
189 | dirsize = 1; | |
190 | dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg)); | |
191 | ndir = 0; | |
192 | ||
193 | quit_flag = 0; | |
194 | line = (char *) xmalloc (linesize); | |
195 | line[0] = '\0'; /* Terminate saved (now empty) cmd line */ | |
196 | instream = stdin; | |
197 | ||
198 | getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
199 | current_directory = gdb_dirbuf; | |
200 | ||
da59e081 JM |
201 | #if defined (TUI) || defined (GDBTK) |
202 | /* Older code uses the tui_file and fputs_unfiltered_hook(). It | |
d9fcf2fb | 203 | should be using a customized UI_FILE object and re-initializing |
da59e081 | 204 | within its own _initialize function. */ |
ac9a91a7 JM |
205 | gdb_stdout = tui_fileopen (stdout); |
206 | gdb_stderr = tui_fileopen (stderr); | |
c5aa993b JM |
207 | gdb_stdlog = gdb_stdout; /* for moment */ |
208 | gdb_stdtarg = gdb_stderr; /* for moment */ | |
da59e081 JM |
209 | #else |
210 | gdb_stdout = stdio_fileopen (stdout); | |
211 | gdb_stderr = stdio_fileopen (stderr); | |
212 | gdb_stdlog = gdb_stderr; /* for moment */ | |
213 | gdb_stdtarg = gdb_stderr; /* for moment */ | |
ac9a91a7 | 214 | #endif |
c906108c | 215 | |
2acceee2 JM |
216 | /* initialize error() */ |
217 | error_init (); | |
218 | ||
c906108c SS |
219 | /* Parse arguments and options. */ |
220 | { | |
221 | int c; | |
222 | /* When var field is 0, use flag field to record the equivalent | |
223 | short option (or arbitrary numbers starting at 10 for those | |
224 | with no equivalent). */ | |
225 | static struct option long_options[] = | |
c5aa993b | 226 | { |
6426a772 JM |
227 | {"async", no_argument, &event_loop_p, 1}, |
228 | {"noasync", no_argument, &event_loop_p, 0}, | |
c906108c | 229 | #if defined(TUI) |
c5aa993b | 230 | {"tui", no_argument, &tui_version, 1}, |
c906108c | 231 | #endif |
c5aa993b JM |
232 | {"xdb", no_argument, &xdb_commands, 1}, |
233 | {"dbx", no_argument, &dbx_commands, 1}, | |
234 | {"readnow", no_argument, &readnow_symbol_files, 1}, | |
235 | {"r", no_argument, &readnow_symbol_files, 1}, | |
236 | {"mapped", no_argument, &mapped_symbol_files, 1}, | |
237 | {"m", no_argument, &mapped_symbol_files, 1}, | |
238 | {"quiet", no_argument, &quiet, 1}, | |
239 | {"q", no_argument, &quiet, 1}, | |
240 | {"silent", no_argument, &quiet, 1}, | |
241 | {"nx", no_argument, &inhibit_gdbinit, 1}, | |
242 | {"n", no_argument, &inhibit_gdbinit, 1}, | |
243 | {"batch", no_argument, &batch, 1}, | |
244 | {"epoch", no_argument, &epoch_interface, 1}, | |
245 | ||
246 | /* This is a synonym for "--annotate=1". --annotate is now preferred, | |
247 | but keep this here for a long time because people will be running | |
248 | emacses which use --fullname. */ | |
249 | {"fullname", no_argument, 0, 'f'}, | |
250 | {"f", no_argument, 0, 'f'}, | |
251 | ||
252 | {"annotate", required_argument, 0, 12}, | |
253 | {"help", no_argument, &print_help, 1}, | |
254 | {"se", required_argument, 0, 10}, | |
255 | {"symbols", required_argument, 0, 's'}, | |
256 | {"s", required_argument, 0, 's'}, | |
257 | {"exec", required_argument, 0, 'e'}, | |
258 | {"e", required_argument, 0, 'e'}, | |
259 | {"core", required_argument, 0, 'c'}, | |
260 | {"c", required_argument, 0, 'c'}, | |
261 | {"command", required_argument, 0, 'x'}, | |
262 | {"version", no_argument, &print_version, 1}, | |
263 | {"x", required_argument, 0, 'x'}, | |
3fc11d3e JM |
264 | #ifdef GDBTK |
265 | {"tclcommand", required_argument, 0, 'z'}, | |
266 | {"enable-external-editor", no_argument, 0, 'y'}, | |
267 | {"editor-command", required_argument, 0, 'w'}, | |
268 | #endif | |
fb40c209 | 269 | #ifdef UI_OUT |
8b93c638 JM |
270 | {"ui", required_argument, 0, 'i'}, |
271 | {"interpreter", required_argument, 0, 'i'}, | |
272 | {"i", required_argument, 0, 'i'}, | |
fb40c209 | 273 | #endif |
c5aa993b | 274 | {"directory", required_argument, 0, 'd'}, |
c4093a6a | 275 | {"d", required_argument, 0, 'd'}, |
c5aa993b JM |
276 | {"cd", required_argument, 0, 11}, |
277 | {"tty", required_argument, 0, 't'}, | |
278 | {"baud", required_argument, 0, 'b'}, | |
279 | {"b", required_argument, 0, 'b'}, | |
280 | {"nw", no_argument, &use_windows, 0}, | |
281 | {"nowindows", no_argument, &use_windows, 0}, | |
282 | {"w", no_argument, &use_windows, 1}, | |
283 | {"windows", no_argument, &use_windows, 1}, | |
284 | {"statistics", no_argument, 0, 13}, | |
285 | {"write", no_argument, &write_files, 1}, | |
c906108c SS |
286 | /* Allow machine descriptions to add more options... */ |
287 | #ifdef ADDITIONAL_OPTIONS | |
c5aa993b | 288 | ADDITIONAL_OPTIONS |
c906108c | 289 | #endif |
c5aa993b JM |
290 | {0, no_argument, 0, 0} |
291 | }; | |
c906108c SS |
292 | |
293 | while (1) | |
294 | { | |
295 | int option_index; | |
296 | ||
297 | c = getopt_long_only (argc, argv, "", | |
298 | long_options, &option_index); | |
299 | if (c == EOF) | |
300 | break; | |
301 | ||
302 | /* Long option that takes an argument. */ | |
303 | if (c == 0 && long_options[option_index].flag == 0) | |
304 | c = long_options[option_index].val; | |
305 | ||
306 | switch (c) | |
307 | { | |
308 | case 0: | |
309 | /* Long option that just sets a flag. */ | |
310 | break; | |
311 | case 10: | |
312 | symarg = optarg; | |
313 | execarg = optarg; | |
314 | break; | |
315 | case 11: | |
316 | cdarg = optarg; | |
317 | break; | |
318 | case 12: | |
319 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ | |
320 | annotation_level = atoi (optarg); | |
321 | break; | |
322 | case 13: | |
323 | /* Enable the display of both time and space usage. */ | |
324 | display_time = 1; | |
325 | display_space = 1; | |
326 | break; | |
327 | case 'f': | |
328 | annotation_level = 1; | |
329 | /* We have probably been invoked from emacs. Disable window interface. */ | |
330 | use_windows = 0; | |
331 | break; | |
332 | case 's': | |
333 | symarg = optarg; | |
334 | break; | |
335 | case 'e': | |
336 | execarg = optarg; | |
337 | break; | |
338 | case 'c': | |
339 | corearg = optarg; | |
340 | break; | |
341 | case 'x': | |
342 | cmdarg[ncmd++] = optarg; | |
343 | if (ncmd >= cmdsize) | |
344 | { | |
345 | cmdsize *= 2; | |
c5aa993b | 346 | cmdarg = (char **) xrealloc ((char *) cmdarg, |
c906108c SS |
347 | cmdsize * sizeof (*cmdarg)); |
348 | } | |
349 | break; | |
3fc11d3e JM |
350 | #ifdef GDBTK |
351 | case 'z': | |
352 | { | |
a14ed312 | 353 | extern int gdbtk_test (char *); |
3fc11d3e JM |
354 | if (!gdbtk_test (optarg)) |
355 | { | |
356 | fprintf_unfiltered (gdb_stderr, "%s: unable to load tclcommand file \"%s\"", | |
357 | argv[0], optarg); | |
358 | exit (1); | |
359 | } | |
360 | break; | |
361 | } | |
362 | case 'y': | |
363 | { | |
364 | /* | |
365 | * This enables the edit/button in the main window, even | |
366 | * when IDE_ENABLED is set to false. In this case you must | |
367 | * use --tclcommand to specify a tcl/script to be called, | |
368 | * Tcl/Variable to store the edit/command is: | |
369 | * external_editor | |
370 | */ | |
371 | enable_external_editor = 1; | |
372 | break; | |
373 | } | |
374 | case 'w': | |
375 | { | |
376 | /* | |
377 | * if editor command is enabled, both flags are set | |
378 | */ | |
379 | enable_external_editor = 1; | |
380 | external_editor_command = xstrdup (optarg); | |
381 | break; | |
382 | } | |
383 | #endif /* GDBTK */ | |
fb40c209 AC |
384 | #ifdef UI_OUT |
385 | case 'i': | |
386 | interpreter_p = optarg; | |
387 | break; | |
388 | #endif | |
c906108c SS |
389 | case 'd': |
390 | dirarg[ndir++] = optarg; | |
391 | if (ndir >= dirsize) | |
392 | { | |
393 | dirsize *= 2; | |
c5aa993b | 394 | dirarg = (char **) xrealloc ((char *) dirarg, |
c906108c SS |
395 | dirsize * sizeof (*dirarg)); |
396 | } | |
397 | break; | |
398 | case 't': | |
399 | ttyarg = optarg; | |
400 | break; | |
401 | case 'q': | |
402 | quiet = 1; | |
403 | break; | |
404 | case 'b': | |
405 | { | |
406 | int i; | |
407 | char *p; | |
408 | ||
409 | i = strtol (optarg, &p, 0); | |
410 | if (i == 0 && p == optarg) | |
411 | ||
412 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 413 | current_target) until after initialize_all_files(). */ |
c906108c SS |
414 | |
415 | fprintf_unfiltered | |
416 | (gdb_stderr, | |
417 | "warning: could not set baud rate to `%s'.\n", optarg); | |
418 | else | |
419 | baud_rate = i; | |
420 | } | |
421 | case 'l': | |
422 | { | |
423 | int i; | |
424 | char *p; | |
425 | ||
426 | i = strtol (optarg, &p, 0); | |
427 | if (i == 0 && p == optarg) | |
428 | ||
429 | /* Don't use *_filtered or warning() (which relies on | |
c5aa993b | 430 | current_target) until after initialize_all_files(). */ |
c906108c SS |
431 | |
432 | fprintf_unfiltered | |
433 | (gdb_stderr, | |
c5aa993b | 434 | "warning: could not set timeout limit to `%s'.\n", optarg); |
c906108c SS |
435 | else |
436 | remote_timeout = i; | |
437 | } | |
438 | break; | |
439 | ||
440 | #ifdef ADDITIONAL_OPTION_CASES | |
c5aa993b | 441 | ADDITIONAL_OPTION_CASES |
c906108c SS |
442 | #endif |
443 | case '?': | |
444 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b JM |
445 | "Use `%s --help' for a complete list of options.\n", |
446 | argv[0]); | |
c906108c SS |
447 | exit (1); |
448 | } | |
449 | } | |
450 | ||
451 | /* If --help or --version, disable window interface. */ | |
452 | if (print_help || print_version) | |
453 | { | |
454 | use_windows = 0; | |
455 | #ifdef TUI | |
456 | /* Disable the TUI as well. */ | |
457 | tui_version = 0; | |
458 | #endif | |
459 | } | |
460 | ||
461 | #ifdef TUI | |
462 | /* An explicit --tui flag overrides the default UI, which is the | |
463 | window system. */ | |
464 | if (tui_version) | |
465 | use_windows = 0; | |
c5aa993b | 466 | #endif |
c906108c SS |
467 | |
468 | /* OK, that's all the options. The other arguments are filenames. */ | |
469 | count = 0; | |
470 | for (; optind < argc; optind++) | |
471 | switch (++count) | |
472 | { | |
473 | case 1: | |
474 | symarg = argv[optind]; | |
475 | execarg = argv[optind]; | |
476 | break; | |
477 | case 2: | |
1adeb98a | 478 | /* FIXME: The documentation says this can be a "ProcID". as well. */ |
c906108c SS |
479 | corearg = argv[optind]; |
480 | break; | |
481 | case 3: | |
482 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b JM |
483 | "Excess command line arguments ignored. (%s%s)\n", |
484 | argv[optind], (optind == argc - 1) ? "" : " ..."); | |
c906108c SS |
485 | break; |
486 | } | |
487 | if (batch) | |
488 | quiet = 1; | |
489 | } | |
490 | ||
491 | #if defined(TUI) | |
0f71a2f6 | 492 | /* Should this be moved to tui-top.c:_initialize_tui()? */ |
c906108c SS |
493 | if (tui_version) |
494 | init_ui_hook = tuiInit; | |
495 | #endif | |
0f71a2f6 JM |
496 | |
497 | /* Initialize all files. Give the interpreter a chance to take | |
498 | control of the console via the init_ui_hook()) */ | |
c906108c SS |
499 | gdb_init (argv[0]); |
500 | ||
501 | /* Do these (and anything which might call wrap_here or *_filtered) | |
502 | after initialize_all_files. */ | |
503 | if (print_version) | |
504 | { | |
505 | print_gdb_version (gdb_stdout); | |
506 | wrap_here (""); | |
507 | printf_filtered ("\n"); | |
508 | exit (0); | |
509 | } | |
510 | ||
511 | if (print_help) | |
512 | { | |
513 | print_gdb_help (gdb_stdout); | |
514 | fputs_unfiltered ("\n", gdb_stdout); | |
515 | exit (0); | |
516 | } | |
517 | ||
518 | if (!quiet) | |
519 | { | |
520 | /* Print all the junk at the top, with trailing "..." if we are about | |
c5aa993b | 521 | to read a symbol file (possibly slowly). */ |
c906108c SS |
522 | print_gdb_version (gdb_stdout); |
523 | if (symarg) | |
524 | printf_filtered (".."); | |
c5aa993b JM |
525 | wrap_here (""); |
526 | gdb_flush (gdb_stdout); /* Force to screen during slow operations */ | |
c906108c SS |
527 | } |
528 | ||
529 | error_pre_print = "\n\n"; | |
530 | quit_pre_print = error_pre_print; | |
531 | ||
532 | /* We may get more than one warning, don't double space all of them... */ | |
533 | warning_pre_print = "\nwarning: "; | |
534 | ||
535 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done | |
536 | *before* all the command line arguments are processed; it sets | |
537 | global parameters, which are independent of what file you are | |
538 | debugging or what directory you are in. */ | |
539 | #ifdef __CYGWIN32__ | |
540 | { | |
c5aa993b JM |
541 | char *tmp = getenv ("HOME"); |
542 | ||
c906108c SS |
543 | if (tmp != NULL) |
544 | { | |
c5aa993b JM |
545 | homedir = (char *) alloca (MAX_PATH + 1); |
546 | cygwin32_conv_to_posix_path (tmp, homedir); | |
c906108c SS |
547 | } |
548 | else | |
549 | homedir = NULL; | |
550 | } | |
551 | #else | |
c5aa993b | 552 | homedir = getenv ("HOME"); |
c906108c SS |
553 | #endif |
554 | if (homedir) | |
555 | { | |
556 | homeinit = (char *) alloca (strlen (homedir) + | |
557 | strlen (gdbinit) + 10); | |
558 | strcpy (homeinit, homedir); | |
559 | strcat (homeinit, "/"); | |
560 | strcat (homeinit, gdbinit); | |
561 | ||
562 | if (!inhibit_gdbinit) | |
563 | { | |
11cf8741 | 564 | catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL); |
c906108c | 565 | } |
c906108c SS |
566 | |
567 | /* Do stats; no need to do them elsewhere since we'll only | |
c5aa993b JM |
568 | need them if homedir is set. Make sure that they are |
569 | zero in case one of them fails (this guarantees that they | |
570 | won't match if either exists). */ | |
571 | ||
c906108c SS |
572 | memset (&homebuf, 0, sizeof (struct stat)); |
573 | memset (&cwdbuf, 0, sizeof (struct stat)); | |
c5aa993b | 574 | |
c906108c | 575 | stat (homeinit, &homebuf); |
c5aa993b JM |
576 | stat (gdbinit, &cwdbuf); /* We'll only need this if |
577 | homedir was set. */ | |
c906108c SS |
578 | } |
579 | ||
580 | /* Now perform all the actions indicated by the arguments. */ | |
581 | if (cdarg != NULL) | |
582 | { | |
11cf8741 | 583 | catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL); |
c906108c | 584 | } |
c906108c SS |
585 | |
586 | for (i = 0; i < ndir; i++) | |
11cf8741 | 587 | catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL); |
b8c9b27d | 588 | xfree (dirarg); |
c906108c SS |
589 | |
590 | if (execarg != NULL | |
591 | && symarg != NULL | |
592 | && STREQ (execarg, symarg)) | |
593 | { | |
11cf8741 JM |
594 | /* The exec file and the symbol-file are the same. If we can't |
595 | open it, better only print one error message. | |
596 | catch_command_errors returns non-zero on success! */ | |
1adeb98a FN |
597 | if (catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL)) |
598 | catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); | |
c906108c SS |
599 | } |
600 | else | |
601 | { | |
602 | if (execarg != NULL) | |
1adeb98a | 603 | catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL); |
c906108c | 604 | if (symarg != NULL) |
1adeb98a | 605 | catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL); |
c906108c | 606 | } |
c906108c SS |
607 | |
608 | /* After the symbol file has been read, print a newline to get us | |
609 | beyond the copyright line... But errors should still set off | |
610 | the error message with a (single) blank line. */ | |
611 | if (!quiet) | |
612 | printf_filtered ("\n"); | |
613 | error_pre_print = "\n"; | |
614 | quit_pre_print = error_pre_print; | |
615 | warning_pre_print = "\nwarning: "; | |
616 | ||
617 | if (corearg != NULL) | |
618 | { | |
11cf8741 JM |
619 | if (catch_command_errors (core_file_command, corearg, !batch, RETURN_MASK_ALL) == 0) |
620 | { | |
621 | /* See if the core file is really a PID. */ | |
622 | if (isdigit (corearg[0])) | |
623 | catch_command_errors (attach_command, corearg, !batch, RETURN_MASK_ALL); | |
624 | } | |
c906108c | 625 | } |
c906108c SS |
626 | |
627 | if (ttyarg != NULL) | |
11cf8741 | 628 | catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL); |
c906108c SS |
629 | |
630 | #ifdef ADDITIONAL_OPTION_HANDLER | |
631 | ADDITIONAL_OPTION_HANDLER; | |
632 | #endif | |
633 | ||
634 | /* Error messages should no longer be distinguished with extra output. */ | |
635 | error_pre_print = NULL; | |
636 | quit_pre_print = NULL; | |
637 | warning_pre_print = "warning: "; | |
638 | ||
639 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
640 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
c5aa993b | 641 | |
c906108c SS |
642 | if (!homedir |
643 | || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat))) | |
644 | if (!inhibit_gdbinit) | |
645 | { | |
11cf8741 | 646 | catch_command_errors (source_command, gdbinit, 0, RETURN_MASK_ALL); |
c906108c | 647 | } |
c906108c SS |
648 | |
649 | for (i = 0; i < ncmd; i++) | |
650 | { | |
11cf8741 JM |
651 | #if 0 |
652 | /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that | |
653 | expanded into a call to setjmp(). */ | |
654 | if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */ | |
c906108c | 655 | { |
b83266a0 SS |
656 | /* NOTE: I am commenting this out, because it is not clear |
657 | where this feature is used. It is very old and | |
c5aa993b | 658 | undocumented. ezannoni: 1999-05-04 */ |
b83266a0 | 659 | #if 0 |
c906108c SS |
660 | if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0') |
661 | read_command_file (stdin); | |
662 | else | |
b83266a0 | 663 | #endif |
c906108c SS |
664 | source_command (cmdarg[i], !batch); |
665 | do_cleanups (ALL_CLEANUPS); | |
666 | } | |
11cf8741 JM |
667 | #endif |
668 | catch_command_errors (source_command, cmdarg[i], !batch, RETURN_MASK_ALL); | |
c906108c | 669 | } |
b8c9b27d | 670 | xfree (cmdarg); |
c906108c SS |
671 | |
672 | /* Read in the old history after all the command files have been read. */ | |
c5aa993b | 673 | init_history (); |
c906108c SS |
674 | |
675 | if (batch) | |
676 | { | |
677 | /* We have hit the end of the batch file. */ | |
678 | exit (0); | |
679 | } | |
680 | ||
681 | /* Do any host- or target-specific hacks. This is used for i960 targets | |
682 | to force the user to set a nindy target and spec its parameters. */ | |
683 | ||
684 | #ifdef BEFORE_MAIN_LOOP_HOOK | |
685 | BEFORE_MAIN_LOOP_HOOK; | |
686 | #endif | |
687 | ||
688 | END_PROGRESS (argv[0]); | |
689 | ||
690 | /* Show time and/or space usage. */ | |
691 | ||
692 | if (display_time) | |
693 | { | |
694 | long init_time = get_run_time () - time_at_startup; | |
695 | ||
696 | printf_unfiltered ("Startup time: %ld.%06ld\n", | |
697 | init_time / 1000000, init_time % 1000000); | |
698 | } | |
699 | ||
700 | if (display_space) | |
701 | { | |
702 | #ifdef HAVE_SBRK | |
703 | extern char **environ; | |
704 | char *lim = (char *) sbrk (0); | |
705 | ||
706 | printf_unfiltered ("Startup size: data size %ld\n", | |
707 | (long) (lim - (char *) &environ)); | |
708 | #endif | |
709 | } | |
710 | ||
711 | /* The default command loop. | |
712 | The WIN32 Gui calls this main to set up gdb's state, and | |
713 | has its own command loop. */ | |
714 | #if !defined _WIN32 || defined __GNUC__ | |
11cf8741 JM |
715 | /* GUIs generally have their own command loop, mainloop, or |
716 | whatever. This is a good place to gain control because many | |
717 | error conditions will end up here via longjmp(). */ | |
718 | #if 0 | |
719 | /* FIXME: cagney/1999-11-06: The original main loop was like: */ | |
c906108c SS |
720 | while (1) |
721 | { | |
722 | if (!SET_TOP_LEVEL ()) | |
723 | { | |
c5aa993b | 724 | do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */ |
c906108c SS |
725 | /* GUIs generally have their own command loop, mainloop, or whatever. |
726 | This is a good place to gain control because many error | |
727 | conditions will end up here via longjmp(). */ | |
728 | if (command_loop_hook) | |
729 | command_loop_hook (); | |
730 | else | |
731 | command_loop (); | |
c5aa993b | 732 | quit_command ((char *) 0, instream == stdin); |
c906108c SS |
733 | } |
734 | } | |
11cf8741 JM |
735 | /* NOTE: If the command_loop() returned normally, the loop would |
736 | attempt to exit by calling the function quit_command(). That | |
737 | function would either call exit() or throw an error returning | |
738 | control to SET_TOP_LEVEL. */ | |
739 | /* NOTE: The function do_cleanups() was called once each time round | |
740 | the loop. The usefulness of the call isn't clear. If an error | |
741 | was thrown, everything would have already been cleaned up. If | |
742 | command_loop() returned normally and quit_command() was called, | |
743 | either exit() or error() (again cleaning up) would be called. */ | |
744 | #endif | |
745 | /* NOTE: cagney/1999-11-07: There is probably no reason for not | |
746 | moving this loop and the code found in captured_command_loop() | |
747 | into the command_loop() proper. The main thing holding back that | |
748 | change - SET_TOP_LEVEL() - has been eliminated. */ | |
749 | while (1) | |
750 | { | |
751 | catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); | |
752 | } | |
c906108c | 753 | #endif |
11cf8741 JM |
754 | /* No exit -- exit is through quit_command. */ |
755 | } | |
c906108c | 756 | |
11cf8741 JM |
757 | int |
758 | main (int argc, char **argv) | |
759 | { | |
11cf8741 JM |
760 | struct captured_main_args args; |
761 | args.argc = argc; | |
762 | args.argv = argv; | |
763 | catch_errors (captured_main, &args, "", RETURN_MASK_ALL); | |
764 | return 0; | |
c906108c SS |
765 | } |
766 | ||
11cf8741 | 767 | |
c906108c SS |
768 | /* Don't use *_filtered for printing help. We don't want to prompt |
769 | for continue no matter how small the screen or how much we're going | |
770 | to print. */ | |
771 | ||
772 | static void | |
d9fcf2fb | 773 | print_gdb_help (struct ui_file *stream) |
c906108c | 774 | { |
c5aa993b | 775 | fputs_unfiltered ("\ |
c906108c SS |
776 | This is the GNU debugger. Usage:\n\n\ |
777 | gdb [options] [executable-file [core-file or process-id]]\n\n\ | |
778 | Options:\n\n\ | |
0f71a2f6 | 779 | ", stream); |
c5aa993b | 780 | fputs_unfiltered ("\ |
0f71a2f6 | 781 | --[no]async Enable (disable) asynchronous version of CLI\n\ |
c906108c | 782 | ", stream); |
c5aa993b | 783 | fputs_unfiltered ("\ |
c906108c SS |
784 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ |
785 | --batch Exit after processing options.\n\ | |
786 | --cd=DIR Change current directory to DIR.\n\ | |
787 | --command=FILE Execute GDB commands from FILE.\n\ | |
788 | --core=COREFILE Analyze the core dump COREFILE.\n\ | |
789 | ", stream); | |
c5aa993b | 790 | fputs_unfiltered ("\ |
c906108c SS |
791 | --dbx DBX compatibility mode.\n\ |
792 | --directory=DIR Search for source files in DIR.\n\ | |
793 | --epoch Output information used by epoch emacs-GDB interface.\n\ | |
794 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
795 | --fullname Output information used by emacs-GDB interface.\n\ | |
796 | --help Print this message.\n\ | |
8b93c638 JM |
797 | ", stream); |
798 | fputs_unfiltered ("\ | |
799 | --interpreter=INTERP\n\ | |
800 | Select a specific interpreter / user interface\n\ | |
c906108c | 801 | ", stream); |
c5aa993b | 802 | fputs_unfiltered ("\ |
c906108c SS |
803 | --mapped Use mapped symbol files if supported on this system.\n\ |
804 | --nw Do not use a window interface.\n\ | |
96baa820 JM |
805 | --nx Do not read ", stream); |
806 | fputs_unfiltered (gdbinit, stream); | |
807 | fputs_unfiltered (" file.\n\ | |
c906108c SS |
808 | --quiet Do not print version number on startup.\n\ |
809 | --readnow Fully read symbol files on first access.\n\ | |
810 | ", stream); | |
c5aa993b | 811 | fputs_unfiltered ("\ |
c906108c SS |
812 | --se=FILE Use FILE as symbol file and executable file.\n\ |
813 | --symbols=SYMFILE Read symbols from SYMFILE.\n\ | |
814 | --tty=TTY Use TTY for input/output by the program being debugged.\n\ | |
815 | ", stream); | |
816 | #if defined(TUI) | |
c5aa993b | 817 | fputs_unfiltered ("\ |
c906108c SS |
818 | --tui Use a terminal user interface.\n\ |
819 | ", stream); | |
820 | #endif | |
c5aa993b | 821 | fputs_unfiltered ("\ |
c906108c SS |
822 | --version Print version information and then exit.\n\ |
823 | -w Use a window interface.\n\ | |
824 | --write Set writing into executable and core files.\n\ | |
825 | --xdb XDB compatibility mode.\n\ | |
826 | ", stream); | |
827 | #ifdef ADDITIONAL_OPTION_HELP | |
c5aa993b | 828 | fputs_unfiltered (ADDITIONAL_OPTION_HELP, stream); |
c906108c | 829 | #endif |
c5aa993b | 830 | fputs_unfiltered ("\n\ |
c906108c SS |
831 | For more information, type \"help\" from within GDB, or consult the\n\ |
832 | GDB manual (available as on-line info or a printed manual).\n\ | |
2df3850c | 833 | Report bugs to \"bug-gdb@gnu.org\".\ |
c906108c SS |
834 | ", stream); |
835 | } |