Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
4c38e0a4 | 5 | 2008, 2009, 2010 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 | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 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 | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "gdbcmd.h" | |
24 | #include "call-cmds.h" | |
210661e7 EZ |
25 | #include "cli/cli-cmds.h" |
26 | #include "cli/cli-script.h" | |
27 | #include "cli/cli-setshow.h" | |
18a642a1 | 28 | #include "cli/cli-decode.h" |
c906108c SS |
29 | #include "symtab.h" |
30 | #include "inferior.h" | |
60250e8b | 31 | #include "exceptions.h" |
042be3a9 | 32 | #include <signal.h> |
c906108c SS |
33 | #include "target.h" |
34 | #include "breakpoint.h" | |
35 | #include "gdbtypes.h" | |
36 | #include "expression.h" | |
37 | #include "value.h" | |
38 | #include "language.h" | |
c5aa993b | 39 | #include "terminal.h" /* For job_control. */ |
c906108c | 40 | #include "annotate.h" |
c5f0f3d0 | 41 | #include "completer.h" |
c906108c | 42 | #include "top.h" |
d4f3574e | 43 | #include "version.h" |
210661e7 | 44 | #include "serial.h" |
d16aafd8 | 45 | #include "doublest.h" |
f9c696d2 | 46 | #include "gdb_assert.h" |
f17517ea | 47 | #include "main.h" |
2e03ee74 | 48 | #include "event-loop.h" |
8ea051c5 | 49 | #include "gdbthread.h" |
c906108c SS |
50 | |
51 | /* readline include files */ | |
dbda9972 AC |
52 | #include "readline/readline.h" |
53 | #include "readline/history.h" | |
c906108c SS |
54 | |
55 | /* readline defines this. */ | |
56 | #undef savestring | |
57 | ||
58 | #include <sys/types.h> | |
c906108c | 59 | |
c2c6d25f | 60 | #include "event-top.h" |
c906108c SS |
61 | #include "gdb_string.h" |
62 | #include "gdb_stat.h" | |
63 | #include <ctype.h> | |
8b93c638 JM |
64 | #include "ui-out.h" |
65 | #include "cli-out.h" | |
c906108c | 66 | |
104c1213 JM |
67 | /* Default command line prompt. This is overriden in some configs. */ |
68 | ||
69 | #ifndef DEFAULT_PROMPT | |
70 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
71 | #endif |
72 | ||
73 | /* Initialization file name for gdb. This is overridden in some configs. */ | |
74 | ||
eaae3919 EZ |
75 | #ifndef PATH_MAX |
76 | # ifdef FILENAME_MAX | |
77 | # define PATH_MAX FILENAME_MAX | |
78 | # else | |
79 | # define PATH_MAX 512 | |
80 | # endif | |
81 | #endif | |
82 | ||
c906108c SS |
83 | #ifndef GDBINIT_FILENAME |
84 | #define GDBINIT_FILENAME ".gdbinit" | |
85 | #endif | |
eaae3919 | 86 | char gdbinit[PATH_MAX + 1] = GDBINIT_FILENAME; |
c906108c SS |
87 | |
88 | int inhibit_gdbinit = 0; | |
89 | ||
90 | /* If nonzero, and GDB has been configured to be able to use windows, | |
91 | attempt to open them upon startup. */ | |
92 | ||
f15ab4a7 | 93 | int use_windows = 0; |
c906108c | 94 | |
c906108c SS |
95 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
96 | ||
97 | /* Flag for whether we want all the "from_tty" gubbish printed. */ | |
98 | ||
c5aa993b | 99 | int caution = 1; /* Default is yes, sigh. */ |
920d2a44 AC |
100 | static void |
101 | show_caution (struct ui_file *file, int from_tty, | |
102 | struct cmd_list_element *c, const char *value) | |
103 | { | |
104 | fprintf_filtered (file, _("\ | |
105 | Whether to confirm potentially dangerous operations is %s.\n"), | |
106 | value); | |
107 | } | |
c906108c | 108 | |
c906108c SS |
109 | /* stdio stream that command input is being read from. Set to stdin normally. |
110 | Set by source_command to the file we are sourcing. Set to NULL if we are | |
111 | executing a user-defined command or interacting via a GUI. */ | |
112 | ||
113 | FILE *instream; | |
114 | ||
698ba934 DJ |
115 | /* Flag to indicate whether a user defined command is currently running. */ |
116 | ||
117 | int in_user_command; | |
118 | ||
c906108c SS |
119 | /* Current working directory. */ |
120 | ||
121 | char *current_directory; | |
122 | ||
123 | /* The directory name is actually stored here (usually). */ | |
124 | char gdb_dirbuf[1024]; | |
125 | ||
126 | /* Function to call before reading a command, if nonzero. | |
127 | The function receives two args: an input stream, | |
128 | and a prompt string. */ | |
129 | ||
507f3c78 | 130 | void (*window_hook) (FILE *, char *); |
c906108c SS |
131 | |
132 | int epoch_interface; | |
133 | int xgdb_verbose; | |
134 | ||
c906108c SS |
135 | /* Buffer used for reading command lines, and the size |
136 | allocated for it so far. */ | |
137 | ||
138 | char *line; | |
139 | int linesize = 100; | |
140 | ||
141 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 142 | affects things like recording into the command history, commands |
c906108c SS |
143 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
144 | whatever) can issue its own commands and also send along commands | |
145 | from the user, and have the user not notice that the user interface | |
146 | is issuing commands too. */ | |
147 | int server_command; | |
148 | ||
149 | /* Baud rate specified for talking to serial target systems. Default | |
150 | is left as -1, so targets can choose their own defaults. */ | |
151 | /* FIXME: This means that "show remotebaud" and gr_files_info can print -1 | |
152 | or (unsigned int)-1. This is a Bad User Interface. */ | |
153 | ||
154 | int baud_rate = -1; | |
155 | ||
156 | /* Timeout limit for response from target. */ | |
157 | ||
ce808e91 AC |
158 | /* The default value has been changed many times over the years. It |
159 | was originally 5 seconds. But that was thought to be a long time | |
160 | to sit and wait, so it was changed to 2 seconds. That was thought | |
161 | to be plenty unless the connection was going through some terminal | |
162 | server or multiplexer or other form of hairy serial connection. | |
163 | ||
164 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
165 | it began being used in other remote-* targets. It appears that the | |
166 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 167 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
168 | |
169 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
170 | 20 seconds is far worse. This demonstrates the difficulty of using | |
171 | a single variable for all protocol timeouts. | |
172 | ||
173 | As remote.c is used much more than remote-e7000.c, it was changed | |
174 | back to 2 seconds in 1999. */ | |
175 | ||
176 | int remote_timeout = 2; | |
c906108c SS |
177 | |
178 | /* Non-zero tells remote* modules to output debugging info. */ | |
179 | ||
180 | int remote_debug = 0; | |
181 | ||
6dd77b81 RH |
182 | /* Sbrk location on entry to main. Used for statistics only. */ |
183 | #ifdef HAVE_SBRK | |
184 | char *lim_at_start; | |
185 | #endif | |
186 | ||
c906108c SS |
187 | /* Hooks for alternate command interfaces. */ |
188 | ||
189 | /* Called after most modules have been initialized, but before taking users | |
1ad24239 KS |
190 | command file. |
191 | ||
192 | If the UI fails to initialize and it wants GDB to continue | |
193 | using the default UI, then it should clear this hook before returning. */ | |
c906108c | 194 | |
9a4105ab | 195 | void (*deprecated_init_ui_hook) (char *argv0); |
7a292a7a SS |
196 | |
197 | /* This hook is called from within gdb's many mini-event loops which could | |
198 | steal control from a real user interface's event loop. It returns | |
199 | non-zero if the user is requesting a detach, zero otherwise. */ | |
200 | ||
98bbd631 | 201 | int (*deprecated_ui_loop_hook) (int); |
c906108c SS |
202 | |
203 | /* Called instead of command_loop at top level. Can be invoked via | |
b5a2688f | 204 | throw_exception(). */ |
c906108c | 205 | |
9a4105ab | 206 | void (*deprecated_command_loop_hook) (void); |
c906108c SS |
207 | |
208 | ||
c906108c SS |
209 | /* Called from print_frame_info to list the line we stopped in. */ |
210 | ||
9a4105ab AC |
211 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, int line, |
212 | int stopline, int noerror); | |
c906108c SS |
213 | /* Replaces most of query. */ |
214 | ||
9a4105ab | 215 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
216 | |
217 | /* Replaces most of warning. */ | |
218 | ||
9a4105ab | 219 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 220 | |
9a4105ab AC |
221 | /* These three functions support getting lines of text from the user. |
222 | They are used in sequence. First deprecated_readline_begin_hook is | |
223 | called with a text string that might be (for example) a message for | |
224 | the user to type in a sequence of commands to be executed at a | |
225 | breakpoint. If this function calls back to a GUI, it might take | |
226 | this opportunity to pop up a text interaction window with this | |
227 | message. Next, deprecated_readline_hook is called with a prompt | |
228 | that is emitted prior to collecting the user input. It can be | |
229 | called multiple times. Finally, deprecated_readline_end_hook is | |
230 | called to notify the GUI that we are done with the interaction | |
231 | window and it can close it. */ | |
c906108c | 232 | |
9a4105ab AC |
233 | void (*deprecated_readline_begin_hook) (char *, ...); |
234 | char *(*deprecated_readline_hook) (char *); | |
235 | void (*deprecated_readline_end_hook) (void); | |
c906108c | 236 | |
6426a772 JM |
237 | /* Called as appropriate to notify the interface that we have attached |
238 | to or detached from an already running process. */ | |
239 | ||
9a4105ab AC |
240 | void (*deprecated_attach_hook) (void); |
241 | void (*deprecated_detach_hook) (void); | |
6426a772 | 242 | |
c906108c SS |
243 | /* Called during long calculations to allow GUI to repair window damage, and to |
244 | check for stop buttons, etc... */ | |
245 | ||
9a4105ab | 246 | void (*deprecated_interactive_hook) (void); |
c906108c | 247 | |
c906108c SS |
248 | /* Tell the GUI someone changed the register REGNO. -1 means |
249 | that the caller does not know which register changed or | |
c5aa993b | 250 | that several registers have changed (see value_assign). */ |
9a4105ab | 251 | void (*deprecated_register_changed_hook) (int regno); |
c906108c | 252 | |
c906108c SS |
253 | /* Called when going to wait for the target. Usually allows the GUI to run |
254 | while waiting for target events. */ | |
255 | ||
9a4105ab | 256 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
257 | struct target_waitstatus *status, |
258 | int options); | |
c906108c SS |
259 | |
260 | /* Used by UI as a wrapper around command execution. May do various things | |
261 | like enabling/disabling buttons, etc... */ | |
262 | ||
9a4105ab AC |
263 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, char *cmd, |
264 | int from_tty); | |
c906108c | 265 | |
96baa820 JM |
266 | /* Called after a `set' command has finished. Is only run if the |
267 | `set' command succeeded. */ | |
268 | ||
9a4105ab | 269 | void (*deprecated_set_hook) (struct cmd_list_element * c); |
96baa820 | 270 | |
c906108c SS |
271 | /* Called when the current thread changes. Argument is thread id. */ |
272 | ||
9a4105ab | 273 | void (*deprecated_context_hook) (int id); |
c906108c | 274 | |
c906108c SS |
275 | /* Handler for SIGHUP. */ |
276 | ||
277 | #ifdef SIGHUP | |
392a587b | 278 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 SS |
279 | gdb to use the event loop as the default command loop and we merge |
280 | event-top.c into this file, top.c */ | |
281 | /* static */ int | |
d0c8cdfb | 282 | quit_cover (void *s) |
c906108c | 283 | { |
c5aa993b JM |
284 | caution = 0; /* Throw caution to the wind -- we're exiting. |
285 | This prevents asking the user dumb questions. */ | |
286 | quit_command ((char *) 0, 0); | |
c906108c SS |
287 | return 0; |
288 | } | |
289 | #endif /* defined SIGHUP */ | |
290 | \f | |
291 | /* Line number we are currently in in a file which is being sourced. */ | |
392a587b | 292 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
293 | gdb to use the event loop as the default command loop and we merge |
294 | event-top.c into this file, top.c */ | |
295 | /* static */ int source_line_number; | |
c906108c SS |
296 | |
297 | /* Name of the file we are sourcing. */ | |
392a587b | 298 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
299 | gdb to use the event loop as the default command loop and we merge |
300 | event-top.c into this file, top.c */ | |
05159abe | 301 | /* static */ const char *source_file_name; |
c906108c | 302 | |
c906108c SS |
303 | /* Clean up on error during a "source" command (or execution of a |
304 | user-defined command). */ | |
305 | ||
d318976c | 306 | void |
e41a3b1a | 307 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
308 | { |
309 | /* Restore the previous input stream. */ | |
310 | instream = stream; | |
311 | } | |
312 | ||
313 | /* Read commands from STREAM. */ | |
314 | void | |
fba45db2 | 315 | read_command_file (FILE *stream) |
c906108c SS |
316 | { |
317 | struct cleanup *cleanups; | |
318 | ||
e41a3b1a | 319 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 320 | instream = stream; |
c5aa993b | 321 | command_loop (); |
c906108c SS |
322 | do_cleanups (cleanups); |
323 | } | |
324 | \f | |
507f3c78 | 325 | void (*pre_init_ui_hook) (void); |
c906108c | 326 | |
e41a3b1a AC |
327 | #ifdef __MSDOS__ |
328 | void | |
329 | do_chdir_cleanup (void *old_dir) | |
330 | { | |
331 | chdir (old_dir); | |
b8c9b27d | 332 | xfree (old_dir); |
e41a3b1a AC |
333 | } |
334 | #endif | |
335 | ||
4e5d721f DE |
336 | void |
337 | prepare_execute_command (void) | |
338 | { | |
339 | free_all_values (); | |
340 | ||
341 | /* With multiple threads running while the one we're examining is stopped, | |
342 | the dcache can get stale without us being able to detect it. | |
343 | For the duration of the command, though, use the dcache to help | |
344 | things like backtrace. */ | |
345 | if (non_stop) | |
346 | target_dcache_invalidate (); | |
347 | } | |
348 | ||
648bf667 | 349 | /* Execute the line P as a command, in the current user context. |
d318976c | 350 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 351 | |
d318976c FN |
352 | void |
353 | execute_command (char *p, int from_tty) | |
c906108c | 354 | { |
52f0bd74 AC |
355 | struct cmd_list_element *c; |
356 | enum language flang; | |
d318976c FN |
357 | static int warned = 0; |
358 | char *line; | |
4e5d721f DE |
359 | |
360 | prepare_execute_command (); | |
c906108c | 361 | |
d318976c FN |
362 | /* Force cleanup of any alloca areas if using C alloca instead of |
363 | a builtin alloca. */ | |
364 | alloca (0); | |
c906108c | 365 | |
d318976c FN |
366 | /* This can happen when command_line_input hits end of file. */ |
367 | if (p == NULL) | |
368 | return; | |
c906108c | 369 | |
49d03eab | 370 | target_log_command (p); |
8b93c638 | 371 | |
d318976c FN |
372 | while (*p == ' ' || *p == '\t') |
373 | p++; | |
374 | if (*p) | |
8b93c638 | 375 | { |
d318976c FN |
376 | char *arg; |
377 | line = p; | |
8b93c638 | 378 | |
16026cd7 AS |
379 | /* If trace-commands is set then this will print this command. */ |
380 | print_command_trace (p); | |
381 | ||
d318976c | 382 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 383 | |
d318976c FN |
384 | /* Pass null arg rather than an empty one. */ |
385 | arg = *p ? p : 0; | |
8b93c638 | 386 | |
9f60d481 AC |
387 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
388 | while the is_complete_command(cfunc) test is just plain | |
389 | bogus. They should both be replaced by a test of the form | |
390 | c->strip_trailing_white_space_p. */ | |
391 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
392 | can't be replaced with func. This is because it is the | |
393 | cfunc, and not the func, that has the value that the | |
394 | is_complete_command hack is testing for. */ | |
395 | /* Clear off trailing whitespace, except for set and complete | |
396 | command. */ | |
d318976c FN |
397 | if (arg |
398 | && c->type != set_cmd | |
bbaca940 | 399 | && !is_complete_command (c)) |
8b93c638 | 400 | { |
d318976c FN |
401 | p = arg + strlen (arg) - 1; |
402 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
403 | p--; | |
404 | *(p + 1) = '\0'; | |
8b93c638 JM |
405 | } |
406 | ||
d318976c | 407 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 408 | execute_cmd_pre_hook (c); |
c906108c | 409 | |
d318976c FN |
410 | if (c->flags & DEPRECATED_WARN_USER) |
411 | deprecated_cmd_warning (&line); | |
c906108c | 412 | |
d318976c FN |
413 | if (c->class == class_user) |
414 | execute_user_command (c, arg); | |
415 | else if (c->type == set_cmd || c->type == show_cmd) | |
416 | do_setshow_command (arg, from_tty & caution, c); | |
f436dd25 | 417 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 418 | error (_("That is not a command, just a help topic.")); |
9a4105ab AC |
419 | else if (deprecated_call_command_hook) |
420 | deprecated_call_command_hook (c, arg, from_tty & caution); | |
d318976c | 421 | else |
f436dd25 | 422 | cmd_func (c, arg, from_tty & caution); |
d318976c FN |
423 | |
424 | /* If this command has been post-hooked, run the hook last. */ | |
5913bcb0 | 425 | execute_cmd_post_hook (c); |
c906108c | 426 | |
c906108c SS |
427 | } |
428 | ||
52efb61a DJ |
429 | /* Tell the user if the language has changed (except first time). |
430 | First make sure that a new frame has been selected, in case this | |
431 | command or the hooks changed the program state. */ | |
432 | deprecated_safe_get_selected_frame (); | |
d318976c | 433 | if (current_language != expected_language) |
c906108c | 434 | { |
52efb61a | 435 | if (language_mode == language_mode_auto && info_verbose) |
c906108c | 436 | { |
d318976c | 437 | language_info (1); /* Print what changed. */ |
c906108c | 438 | } |
d318976c | 439 | warned = 0; |
c906108c SS |
440 | } |
441 | ||
d318976c FN |
442 | /* Warn the user if the working language does not match the |
443 | language of the current frame. Only warn the user if we are | |
444 | actually running the program, i.e. there is a stack. */ | |
445 | /* FIXME: This should be cacheing the frame and only running when | |
446 | the frame changes. */ | |
447 | ||
d729566a | 448 | if (has_stack_frames ()) |
c906108c | 449 | { |
d318976c FN |
450 | flang = get_frame_language (); |
451 | if (!warned | |
452 | && flang != language_unknown | |
453 | && flang != current_language->la_language) | |
c906108c | 454 | { |
d318976c FN |
455 | printf_filtered ("%s\n", lang_frame_mismatch_warn); |
456 | warned = 1; | |
c906108c | 457 | } |
c906108c SS |
458 | } |
459 | } | |
460 | ||
5da1313b JK |
461 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
462 | returned string, do not display it to the screen. BATCH_FLAG will be | |
463 | temporarily set to true. */ | |
464 | ||
465 | char * | |
466 | execute_command_to_string (char *p, int from_tty) | |
467 | { | |
468 | struct ui_file *str_file; | |
469 | struct cleanup *cleanup; | |
470 | char *retval; | |
471 | ||
472 | /* GDB_STDOUT should be better already restored during these | |
473 | restoration callbacks. */ | |
474 | cleanup = set_batch_flag_and_make_cleanup_restore_page_info (); | |
475 | ||
476 | str_file = mem_fileopen (); | |
477 | ||
8d4d924b | 478 | make_cleanup_ui_file_delete (str_file); |
5da1313b JK |
479 | make_cleanup_restore_ui_file (&gdb_stdout); |
480 | make_cleanup_restore_ui_file (&gdb_stderr); | |
8d4d924b JK |
481 | make_cleanup_restore_ui_file (&gdb_stdlog); |
482 | make_cleanup_restore_ui_file (&gdb_stdtarg); | |
483 | make_cleanup_restore_ui_file (&gdb_stdtargerr); | |
484 | ||
485 | if (ui_out_redirect (uiout, str_file) < 0) | |
486 | warning (_("Current output protocol does not support redirection")); | |
487 | else | |
488 | make_cleanup_ui_out_redirect_pop (uiout); | |
5da1313b JK |
489 | |
490 | gdb_stdout = str_file; | |
491 | gdb_stderr = str_file; | |
8d4d924b JK |
492 | gdb_stdlog = str_file; |
493 | gdb_stdtarg = str_file; | |
494 | gdb_stdtargerr = str_file; | |
5da1313b JK |
495 | |
496 | execute_command (p, from_tty); | |
497 | ||
498 | retval = ui_file_xstrdup (str_file, NULL); | |
499 | ||
500 | do_cleanups (cleanup); | |
501 | ||
502 | return retval; | |
503 | } | |
504 | ||
d318976c FN |
505 | /* Read commands from `instream' and execute them |
506 | until end of file or error reading instream. */ | |
c906108c | 507 | |
d318976c FN |
508 | void |
509 | command_loop (void) | |
c906108c | 510 | { |
d318976c FN |
511 | struct cleanup *old_chain; |
512 | char *command; | |
513 | int stdin_is_tty = ISATTY (stdin); | |
c5aa993b | 514 | |
d318976c FN |
515 | while (instream && !feof (instream)) |
516 | { | |
d318976c FN |
517 | if (window_hook && instream == stdin) |
518 | (*window_hook) (instream, get_prompt ()); | |
c906108c | 519 | |
d318976c FN |
520 | quit_flag = 0; |
521 | if (instream == stdin && stdin_is_tty) | |
522 | reinitialize_more_filter (); | |
523 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 524 | |
d318976c FN |
525 | /* Get a command-line. This calls the readline package. */ |
526 | command = command_line_input (instream == stdin ? | |
527 | get_prompt () : (char *) NULL, | |
528 | instream == stdin, "prompt"); | |
d318976c FN |
529 | if (command == 0) |
530 | return; | |
c906108c | 531 | |
0f3bb72e | 532 | make_command_stats_cleanup (1); |
9e0b60a8 | 533 | |
d318976c | 534 | execute_command (command, instream == stdin); |
347bddb7 PA |
535 | |
536 | /* Do any commands attached to breakpoint we are stopped at. */ | |
537 | bpstat_do_actions (); | |
538 | ||
d318976c | 539 | do_cleanups (old_chain); |
9e0b60a8 | 540 | } |
9e0b60a8 | 541 | } |
d318976c FN |
542 | \f |
543 | /* Commands call this if they do not want to be repeated by null lines. */ | |
9e0b60a8 | 544 | |
d318976c FN |
545 | void |
546 | dont_repeat (void) | |
9e0b60a8 | 547 | { |
d318976c FN |
548 | if (server_command) |
549 | return; | |
9e0b60a8 | 550 | |
d318976c FN |
551 | /* If we aren't reading from standard input, we are saving the last |
552 | thing read from stdin in line and don't want to delete it. Null lines | |
553 | won't repeat here in any case. */ | |
554 | if (instream == stdin) | |
555 | *line = 0; | |
9e0b60a8 | 556 | } |
d318976c FN |
557 | \f |
558 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 559 | |
d318976c FN |
560 | It prints PROMPT_ARG once at the start. |
561 | Action is compatible with "readline", e.g. space for the result is | |
562 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 563 | |
d318976c FN |
564 | A NULL return means end of file. */ |
565 | char * | |
566 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 567 | { |
d318976c FN |
568 | int c; |
569 | char *result; | |
570 | int input_index = 0; | |
571 | int result_size = 80; | |
9e0b60a8 | 572 | |
d318976c | 573 | if (prompt_arg) |
9e0b60a8 | 574 | { |
d318976c FN |
575 | /* Don't use a _filtered function here. It causes the assumed |
576 | character position to be off, since the newline we read from | |
577 | the user is not accounted for. */ | |
578 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
579 | gdb_flush (gdb_stdout); |
580 | } | |
581 | ||
d318976c | 582 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
583 | |
584 | while (1) | |
585 | { | |
d318976c FN |
586 | /* Read from stdin if we are executing a user defined command. |
587 | This is the right thing for prompt_for_continue, at least. */ | |
588 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 589 | |
d318976c | 590 | if (c == EOF) |
9e0b60a8 | 591 | { |
d318976c FN |
592 | if (input_index > 0) |
593 | /* The last line does not end with a newline. Return it, and | |
594 | if we are called again fgetc will still return EOF and | |
595 | we'll return NULL then. */ | |
9e0b60a8 | 596 | break; |
b8c9b27d | 597 | xfree (result); |
d318976c | 598 | return NULL; |
9e0b60a8 | 599 | } |
c5aa993b | 600 | |
d318976c | 601 | if (c == '\n') |
9e0b60a8 | 602 | { |
d318976c FN |
603 | if (input_index > 0 && result[input_index - 1] == '\r') |
604 | input_index--; | |
605 | break; | |
9e0b60a8 | 606 | } |
9e0b60a8 | 607 | |
d318976c FN |
608 | result[input_index++] = c; |
609 | while (input_index >= result_size) | |
9e0b60a8 | 610 | { |
d318976c FN |
611 | result_size *= 2; |
612 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 613 | } |
9e0b60a8 JM |
614 | } |
615 | ||
d318976c FN |
616 | result[input_index++] = '\0'; |
617 | return result; | |
9e0b60a8 JM |
618 | } |
619 | ||
d318976c FN |
620 | /* Variables which control command line editing and history |
621 | substitution. These variables are given default values at the end | |
622 | of this file. */ | |
623 | static int command_editing_p; | |
920d2a44 | 624 | |
d318976c FN |
625 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
626 | gdb to use the event loop as the default command loop and we merge | |
627 | event-top.c into this file, top.c */ | |
920d2a44 | 628 | |
d318976c | 629 | /* static */ int history_expansion_p; |
920d2a44 | 630 | |
d318976c | 631 | static int write_history_p; |
920d2a44 AC |
632 | static void |
633 | show_write_history_p (struct ui_file *file, int from_tty, | |
634 | struct cmd_list_element *c, const char *value) | |
635 | { | |
636 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
637 | value); | |
638 | } | |
639 | ||
d318976c | 640 | static int history_size; |
920d2a44 AC |
641 | static void |
642 | show_history_size (struct ui_file *file, int from_tty, | |
643 | struct cmd_list_element *c, const char *value) | |
644 | { | |
645 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
646 | value); | |
647 | } | |
648 | ||
d318976c | 649 | static char *history_filename; |
920d2a44 AC |
650 | static void |
651 | show_history_filename (struct ui_file *file, int from_tty, | |
652 | struct cmd_list_element *c, const char *value) | |
653 | { | |
654 | fprintf_filtered (file, _("\ | |
655 | The filename in which to record the command history is \"%s\".\n"), | |
656 | value); | |
657 | } | |
9e0b60a8 | 658 | |
b4f5539f | 659 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 660 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
661 | a single gdb invocation. At the ordinary top-level prompt we might |
662 | be using the async readline. That means we can't use | |
663 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
664 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
665 | `define'), gdb wants a synchronous response. |
666 | ||
667 | We used to call readline() directly, running it in synchronous | |
668 | mode. But mixing modes this way is not supported, and as of | |
669 | readline 5.x it no longer works; the arrow keys come unbound during | |
670 | the synchronous call. So we make a nested call into the event | |
671 | loop. That's what gdb_readline_wrapper is for. */ | |
672 | ||
673 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
674 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
675 | the user types Control-D for EOF. */ | |
676 | static int gdb_readline_wrapper_done; | |
677 | ||
678 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
679 | is seen. */ | |
680 | static char *gdb_readline_wrapper_result; | |
681 | ||
682 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
683 | to be called after the newline is processed (which will redisplay | |
684 | the prompt). But in gdb_readline_wrapper we will not get a new | |
685 | prompt until the next call, or until we return to the event loop. | |
686 | So we disable this hook around the newline and restore it before we | |
687 | return. */ | |
688 | static void (*saved_after_char_processing_hook) (void); | |
689 | ||
690 | /* This function is called when readline has seen a complete line of | |
691 | text. */ | |
692 | ||
693 | static void | |
694 | gdb_readline_wrapper_line (char *line) | |
695 | { | |
696 | gdb_assert (!gdb_readline_wrapper_done); | |
697 | gdb_readline_wrapper_result = line; | |
698 | gdb_readline_wrapper_done = 1; | |
699 | ||
700 | /* Prevent operate-and-get-next from acting too early. */ | |
701 | saved_after_char_processing_hook = after_char_processing_hook; | |
702 | after_char_processing_hook = NULL; | |
1b05479a DJ |
703 | |
704 | /* Prevent parts of the prompt from being redisplayed if annotations | |
705 | are enabled, and readline's state getting out of sync. */ | |
706 | if (async_command_editing_p) | |
707 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
708 | } |
709 | ||
710 | struct gdb_readline_wrapper_cleanup | |
711 | { | |
712 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
713 | int already_prompted_orig; |
714 | }; | |
715 | ||
716 | static void | |
717 | gdb_readline_wrapper_cleanup (void *arg) | |
718 | { | |
719 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
720 | ||
2e03ee74 | 721 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
722 | |
723 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
724 | input_handler = cleanup->handler_orig; | |
725 | gdb_readline_wrapper_result = NULL; | |
726 | gdb_readline_wrapper_done = 0; | |
727 | ||
728 | after_char_processing_hook = saved_after_char_processing_hook; | |
729 | saved_after_char_processing_hook = NULL; | |
730 | ||
731 | xfree (cleanup); | |
732 | } | |
733 | ||
b4f5539f TT |
734 | char * |
735 | gdb_readline_wrapper (char *prompt) | |
736 | { | |
2e03ee74 DJ |
737 | struct cleanup *back_to; |
738 | struct gdb_readline_wrapper_cleanup *cleanup; | |
739 | char *retval; | |
740 | ||
741 | cleanup = xmalloc (sizeof (*cleanup)); | |
742 | cleanup->handler_orig = input_handler; | |
743 | input_handler = gdb_readline_wrapper_line; | |
744 | ||
2e03ee74 DJ |
745 | cleanup->already_prompted_orig = rl_already_prompted; |
746 | ||
747 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
748 | ||
749 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 750 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
751 | rl_already_prompted = 1; |
752 | ||
362646f5 | 753 | if (after_char_processing_hook) |
2e03ee74 DJ |
754 | (*after_char_processing_hook) (); |
755 | gdb_assert (after_char_processing_hook == NULL); | |
756 | ||
757 | /* gdb_do_one_event argument is unused. */ | |
758 | while (gdb_do_one_event (NULL) >= 0) | |
759 | if (gdb_readline_wrapper_done) | |
760 | break; | |
b4f5539f | 761 | |
2e03ee74 DJ |
762 | retval = gdb_readline_wrapper_result; |
763 | do_cleanups (back_to); | |
764 | return retval; | |
b4f5539f TT |
765 | } |
766 | ||
9e0b60a8 | 767 | \f |
467d8519 TT |
768 | /* The current saved history number from operate-and-get-next. |
769 | This is -1 if not valid. */ | |
770 | static int operate_saved_history = -1; | |
771 | ||
772 | /* This is put on the appropriate hook and helps operate-and-get-next | |
773 | do its work. */ | |
b9362cc7 | 774 | static void |
5ae5f592 | 775 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
776 | { |
777 | int delta = where_history () - operate_saved_history; | |
5d502164 | 778 | |
467d8519 TT |
779 | /* The `key' argument to rl_get_previous_history is ignored. */ |
780 | rl_get_previous_history (delta, 0); | |
781 | operate_saved_history = -1; | |
782 | ||
783 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 784 | rl_redisplay (); |
467d8519 TT |
785 | |
786 | after_char_processing_hook = NULL; | |
787 | rl_pre_input_hook = NULL; | |
788 | } | |
789 | ||
790 | /* This is a gdb-local readline command handler. It accepts the | |
791 | current command line (like RET does) and, if this command was taken | |
792 | from the history, arranges for the next command in the history to | |
793 | appear on the command line when the prompt returns. | |
794 | We ignore the arguments. */ | |
795 | static int | |
796 | gdb_rl_operate_and_get_next (int count, int key) | |
797 | { | |
b5686e99 MK |
798 | int where; |
799 | ||
362646f5 AC |
800 | /* Use the async hook. */ |
801 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 802 | |
b5686e99 MK |
803 | /* Find the current line, and find the next line to use. */ |
804 | where = where_history(); | |
805 | ||
806 | /* FIXME: kettenis/20020817: max_input_history is renamed into | |
807 | history_max_entries in readline-4.2. When we do a new readline | |
808 | import, we should probably change it here too, even though | |
809 | readline maintains backwards compatibility for now by still | |
810 | defining max_input_history. */ | |
811 | if ((history_is_stifled () && (history_length >= max_input_history)) || | |
812 | (where >= history_length - 1)) | |
813 | operate_saved_history = where; | |
814 | else | |
815 | operate_saved_history = where + 1; | |
816 | ||
467d8519 TT |
817 | return rl_newline (1, key); |
818 | } | |
819 | \f | |
d318976c FN |
820 | /* Read one line from the command input stream `instream' |
821 | into the local static buffer `linebuffer' (whose current length | |
822 | is `linelength'). | |
823 | The buffer is made bigger as necessary. | |
824 | Returns the address of the start of the line. | |
9e0b60a8 | 825 | |
d318976c | 826 | NULL is returned for end of file. |
9e0b60a8 | 827 | |
d318976c FN |
828 | *If* the instream == stdin & stdin is a terminal, the line read |
829 | is copied into the file line saver (global var char *line, | |
830 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 831 | |
d318976c FN |
832 | This routine either uses fancy command line editing or |
833 | simple input as the user has requested. */ | |
10689f25 | 834 | |
d318976c FN |
835 | char * |
836 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 837 | { |
d318976c FN |
838 | static char *linebuffer = 0; |
839 | static unsigned linelength = 0; | |
52f0bd74 | 840 | char *p; |
d318976c FN |
841 | char *p1; |
842 | char *rl; | |
843 | char *local_prompt = prompt_arg; | |
844 | char *nline; | |
845 | char got_eof = 0; | |
846 | ||
847 | /* The annotation suffix must be non-NULL. */ | |
848 | if (annotation_suffix == NULL) | |
849 | annotation_suffix = ""; | |
9e0b60a8 | 850 | |
d318976c FN |
851 | if (annotation_level > 1 && instream == stdin) |
852 | { | |
853 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
854 | + strlen (annotation_suffix) + 40); | |
855 | if (prompt_arg == NULL) | |
856 | local_prompt[0] = '\0'; | |
857 | else | |
858 | strcpy (local_prompt, prompt_arg); | |
859 | strcat (local_prompt, "\n\032\032"); | |
860 | strcat (local_prompt, annotation_suffix); | |
861 | strcat (local_prompt, "\n"); | |
862 | } | |
9e0b60a8 | 863 | |
d318976c | 864 | if (linebuffer == 0) |
9e0b60a8 | 865 | { |
d318976c FN |
866 | linelength = 80; |
867 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 868 | } |
9e0b60a8 | 869 | |
d318976c | 870 | p = linebuffer; |
9e0b60a8 | 871 | |
d318976c FN |
872 | /* Control-C quits instantly if typed while in this loop |
873 | since it should not wait until the user types a newline. */ | |
874 | immediate_quit++; | |
875 | #ifdef STOP_SIGNAL | |
876 | if (job_control) | |
362646f5 | 877 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
878 | #endif |
879 | ||
880 | while (1) | |
9e0b60a8 | 881 | { |
d318976c FN |
882 | /* Make sure that all output has been output. Some machines may let |
883 | you get away with leaving out some of the gdb_flush, but not all. */ | |
884 | wrap_here (""); | |
885 | gdb_flush (gdb_stdout); | |
886 | gdb_flush (gdb_stderr); | |
887 | ||
888 | if (source_file_name != NULL) | |
637537d0 | 889 | ++source_line_number; |
d318976c FN |
890 | |
891 | if (annotation_level > 1 && instream == stdin) | |
892 | { | |
306d9ac5 DC |
893 | puts_unfiltered ("\n\032\032pre-"); |
894 | puts_unfiltered (annotation_suffix); | |
895 | puts_unfiltered ("\n"); | |
d318976c FN |
896 | } |
897 | ||
898 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 899 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 900 | { |
9a4105ab | 901 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 902 | } |
698ba934 | 903 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 904 | { |
b4f5539f | 905 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 906 | } |
9e0b60a8 | 907 | else |
d318976c FN |
908 | { |
909 | rl = gdb_readline (local_prompt); | |
910 | } | |
9e0b60a8 | 911 | |
d318976c FN |
912 | if (annotation_level > 1 && instream == stdin) |
913 | { | |
306d9ac5 DC |
914 | puts_unfiltered ("\n\032\032post-"); |
915 | puts_unfiltered (annotation_suffix); | |
916 | puts_unfiltered ("\n"); | |
d318976c | 917 | } |
9e0b60a8 | 918 | |
d318976c | 919 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 920 | { |
d318976c FN |
921 | got_eof = 1; |
922 | break; | |
9e0b60a8 | 923 | } |
d318976c FN |
924 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
925 | { | |
926 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
927 | nline = (char *) xrealloc (linebuffer, linelength); | |
928 | p += nline - linebuffer; | |
929 | linebuffer = nline; | |
930 | } | |
931 | p1 = rl; | |
932 | /* Copy line. Don't copy null at end. (Leaves line alone | |
933 | if this was just a newline) */ | |
934 | while (*p1) | |
935 | *p++ = *p1++; | |
9e0b60a8 | 936 | |
b8c9b27d | 937 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 938 | |
d318976c FN |
939 | if (p == linebuffer || *(p - 1) != '\\') |
940 | break; | |
9e0b60a8 | 941 | |
d318976c FN |
942 | p--; /* Put on top of '\'. */ |
943 | local_prompt = (char *) 0; | |
944 | } | |
9e0b60a8 | 945 | |
d318976c FN |
946 | #ifdef STOP_SIGNAL |
947 | if (job_control) | |
948 | signal (STOP_SIGNAL, SIG_DFL); | |
949 | #endif | |
950 | immediate_quit--; | |
9e0b60a8 | 951 | |
d318976c FN |
952 | if (got_eof) |
953 | return NULL; | |
9e0b60a8 | 954 | |
d318976c FN |
955 | #define SERVER_COMMAND_LENGTH 7 |
956 | server_command = | |
957 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 958 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 959 | if (server_command) |
9e0b60a8 | 960 | { |
d318976c FN |
961 | /* Note that we don't set `line'. Between this and the check in |
962 | dont_repeat, this insures that repeating will still do the | |
963 | right thing. */ | |
964 | *p = '\0'; | |
965 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 966 | } |
9e0b60a8 | 967 | |
d318976c FN |
968 | /* Do history expansion if that is wished. */ |
969 | if (history_expansion_p && instream == stdin | |
970 | && ISATTY (instream)) | |
971 | { | |
972 | char *history_value; | |
973 | int expanded; | |
9e0b60a8 | 974 | |
d318976c FN |
975 | *p = '\0'; /* Insert null now. */ |
976 | expanded = history_expand (linebuffer, &history_value); | |
977 | if (expanded) | |
978 | { | |
979 | /* Print the changes. */ | |
980 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 981 | |
d318976c FN |
982 | /* If there was an error, call this function again. */ |
983 | if (expanded < 0) | |
984 | { | |
b8c9b27d | 985 | xfree (history_value); |
d318976c FN |
986 | return command_line_input (prompt_arg, repeat, annotation_suffix); |
987 | } | |
988 | if (strlen (history_value) > linelength) | |
989 | { | |
990 | linelength = strlen (history_value) + 1; | |
991 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
992 | } | |
993 | strcpy (linebuffer, history_value); | |
994 | p = linebuffer + strlen (linebuffer); | |
d318976c | 995 | } |
91d2803c | 996 | xfree (history_value); |
d318976c | 997 | } |
9e0b60a8 | 998 | |
d318976c FN |
999 | /* If we just got an empty line, and that is supposed |
1000 | to repeat the previous command, return the value in the | |
1001 | global buffer. */ | |
1002 | if (repeat && p == linebuffer) | |
1003 | return line; | |
1004 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); | |
1005 | if (repeat && !*p1) | |
1006 | return line; | |
9e0b60a8 | 1007 | |
d318976c | 1008 | *p = 0; |
9e0b60a8 | 1009 | |
d318976c FN |
1010 | /* Add line to history if appropriate. */ |
1011 | if (instream == stdin | |
1012 | && ISATTY (stdin) && *linebuffer) | |
1013 | add_history (linebuffer); | |
9e0b60a8 | 1014 | |
d318976c FN |
1015 | /* Note: lines consisting solely of comments are added to the command |
1016 | history. This is useful when you type a command, and then | |
1017 | realize you don't want to execute it quite yet. You can comment | |
1018 | out the command and then later fetch it from the value history | |
1019 | and remove the '#'. The kill ring is probably better, but some | |
1020 | people are in the habit of commenting things out. */ | |
1021 | if (*p1 == '#') | |
1022 | *p1 = '\0'; /* Found a comment. */ | |
9e0b60a8 | 1023 | |
d318976c FN |
1024 | /* Save into global buffer if appropriate. */ |
1025 | if (repeat) | |
1026 | { | |
1027 | if (linelength > linesize) | |
1028 | { | |
1029 | line = xrealloc (line, linelength); | |
1030 | linesize = linelength; | |
1031 | } | |
1032 | strcpy (line, linebuffer); | |
1033 | return line; | |
1034 | } | |
9e0b60a8 | 1035 | |
d318976c | 1036 | return linebuffer; |
9e0b60a8 JM |
1037 | } |
1038 | \f | |
1039 | /* Print the GDB banner. */ | |
1040 | void | |
fba45db2 | 1041 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1042 | { |
1043 | /* From GNU coding standards, first line is meant to be easy for a | |
1044 | program to parse, and is just canonical program name and version | |
1045 | number, which starts after last space. */ | |
1046 | ||
c16158bc | 1047 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 JM |
1048 | |
1049 | /* Second line is a copyright notice. */ | |
1050 | ||
4a70f654 | 1051 | fprintf_filtered (stream, "Copyright (C) 2010 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1052 | |
1053 | /* Following the copyright is a brief statement that the program is | |
1054 | free software, that users are free to copy and change it on | |
1055 | certain conditions, that it is covered by the GNU GPL, and that | |
1056 | there is no warranty. */ | |
1057 | ||
1058 | fprintf_filtered (stream, "\ | |
b8533aec DJ |
1059 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n\ |
1060 | This is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1061 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1062 | and \"show warranty\" for details.\n"); |
9e0b60a8 JM |
1063 | |
1064 | /* After the required info we print the configuration information. */ | |
1065 | ||
1066 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1067 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 JM |
1068 | { |
1069 | fprintf_filtered (stream, "--host=%s --target=%s", host_name, target_name); | |
1070 | } | |
1071 | else | |
1072 | { | |
1073 | fprintf_filtered (stream, "%s", host_name); | |
1074 | } | |
1075 | fprintf_filtered (stream, "\"."); | |
c16158bc JM |
1076 | |
1077 | if (REPORT_BUGS_TO[0]) | |
1078 | { | |
1079 | fprintf_filtered (stream, | |
1080 | _("\nFor bug reporting instructions, please see:\n")); | |
7949220d | 1081 | fprintf_filtered (stream, "%s.", REPORT_BUGS_TO); |
c16158bc | 1082 | } |
9e0b60a8 | 1083 | } |
9e0b60a8 JM |
1084 | \f |
1085 | /* get_prompt: access method for the GDB prompt string. */ | |
1086 | ||
9e0b60a8 | 1087 | char * |
fba45db2 | 1088 | get_prompt (void) |
9e0b60a8 | 1089 | { |
362646f5 | 1090 | return PROMPT (0); |
9e0b60a8 JM |
1091 | } |
1092 | ||
1093 | void | |
fba45db2 | 1094 | set_prompt (char *s) |
9e0b60a8 JM |
1095 | { |
1096 | /* ??rehrauer: I don't know why this fails, since it looks as though | |
1b36a34b | 1097 | assignments to prompt are wrapped in calls to xstrdup... |
c5aa993b | 1098 | if (prompt != NULL) |
b8c9b27d | 1099 | xfree (prompt); |
c5aa993b | 1100 | */ |
1b36a34b | 1101 | PROMPT (0) = xstrdup (s); |
9e0b60a8 | 1102 | } |
9e0b60a8 | 1103 | \f |
c5aa993b | 1104 | |
b0abbc58 | 1105 | struct qt_args |
9e0b60a8 | 1106 | { |
b0abbc58 JJ |
1107 | char *args; |
1108 | int from_tty; | |
1109 | }; | |
9e0b60a8 | 1110 | |
54a012c9 PA |
1111 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1112 | inferior, depending on how we originally gained control of it. */ | |
1113 | ||
1114 | static int | |
1115 | kill_or_detach (struct inferior *inf, void *args) | |
1116 | { | |
1117 | struct qt_args *qt = args; | |
1118 | struct thread_info *thread; | |
1119 | ||
6c95b8df PA |
1120 | if (inf->pid == 0) |
1121 | return 0; | |
1122 | ||
b8fa0bfa PA |
1123 | thread = any_thread_of_process (inf->pid); |
1124 | if (thread != NULL) | |
9e0b60a8 | 1125 | { |
54a012c9 | 1126 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1127 | |
1128 | /* Leave core files alone. */ | |
1129 | if (target_has_execution) | |
1130 | { | |
1131 | if (inf->attach_flag) | |
1132 | target_detach (qt->args, qt->from_tty); | |
1133 | else | |
1134 | target_kill (); | |
1135 | } | |
9e0b60a8 JM |
1136 | } |
1137 | ||
54a012c9 PA |
1138 | return 0; |
1139 | } | |
1140 | ||
b8fa0bfa PA |
1141 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1142 | will do to each inferior on a "quit". ARG points to a struct | |
1143 | ui_out where output is to be collected. */ | |
1144 | ||
1145 | static int | |
1146 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1147 | { | |
1148 | struct ui_file *stb = arg; | |
1149 | ||
6c95b8df PA |
1150 | if (inf->pid == 0) |
1151 | return 0; | |
1152 | ||
b8fa0bfa PA |
1153 | if (inf->attach_flag) |
1154 | fprintf_filtered (stb, | |
1155 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1156 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1157 | else | |
1158 | fprintf_filtered (stb, | |
1159 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1160 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1161 | ||
1162 | return 0; | |
1163 | } | |
1164 | ||
1165 | /* If necessary, make the user confirm that we should quit. Return | |
1166 | non-zero if we should quit, zero if we shouldn't. */ | |
1167 | ||
1168 | int | |
1169 | quit_confirm (void) | |
1170 | { | |
1171 | struct ui_file *stb; | |
1172 | struct cleanup *old_chain; | |
1173 | char *str; | |
1174 | int qr; | |
1175 | ||
1176 | /* Don't even ask if we're only debugging a core file inferior. */ | |
1177 | if (!have_live_inferiors ()) | |
1178 | return 1; | |
1179 | ||
1180 | /* Build the query string as a single string. */ | |
1181 | stb = mem_fileopen (); | |
1182 | old_chain = make_cleanup_ui_file_delete (stb); | |
1183 | ||
1184 | /* This is something of a hack. But there's no reliable way to see | |
1185 | if a GUI is running. The `use_windows' variable doesn't cut | |
1186 | it. */ | |
1187 | if (deprecated_init_ui_hook) | |
1188 | fprintf_filtered (stb, _("A debugging session is active.\n" | |
1189 | "Do you still want to close the debugger?")); | |
1190 | else | |
1191 | { | |
1192 | fprintf_filtered (stb, _("A debugging session is active.\n\n")); | |
1193 | iterate_over_inferiors (print_inferior_quit_action, stb); | |
1194 | fprintf_filtered (stb, _("\nQuit anyway? ")); | |
1195 | } | |
1196 | ||
1197 | str = ui_file_xstrdup (stb, NULL); | |
1198 | make_cleanup (xfree, str); | |
1199 | ||
1200 | qr = query ("%s", str); | |
1201 | do_cleanups (old_chain); | |
1202 | return qr; | |
1203 | } | |
1204 | ||
54a012c9 PA |
1205 | /* Helper routine for quit_force that requires error handling. */ |
1206 | ||
1207 | static int | |
1208 | quit_target (void *arg) | |
1209 | { | |
1210 | struct qt_args *qt = (struct qt_args *)arg; | |
1211 | ||
1212 | /* Kill or detach all inferiors. */ | |
c35b1492 | 1213 | iterate_over_inferiors (kill_or_detach, qt); |
54a012c9 | 1214 | |
aa76d38d PA |
1215 | /* Give all pushed targets a chance to do minimal cleanup, and pop |
1216 | them all out. */ | |
1217 | pop_all_targets (1); | |
9e0b60a8 JM |
1218 | |
1219 | /* Save the history information if it is appropriate to do so. */ | |
1220 | if (write_history_p && history_filename) | |
1221 | write_history (history_filename); | |
1222 | ||
c5aa993b | 1223 | do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before exiting */ |
9e0b60a8 | 1224 | |
b0abbc58 JJ |
1225 | return 0; |
1226 | } | |
1227 | ||
1228 | /* Quit without asking for confirmation. */ | |
1229 | ||
1230 | void | |
1231 | quit_force (char *args, int from_tty) | |
1232 | { | |
1233 | int exit_code = 0; | |
365c70b1 | 1234 | struct qt_args qt; |
b0abbc58 JJ |
1235 | |
1236 | /* An optional expression may be used to cause gdb to terminate with the | |
1237 | value of that expression. */ | |
1238 | if (args) | |
1239 | { | |
1240 | struct value *val = parse_and_eval (args); | |
1241 | ||
1242 | exit_code = (int) value_as_long (val); | |
1243 | } | |
4b0ad762 AS |
1244 | else if (return_child_result) |
1245 | exit_code = return_child_result_value; | |
b0abbc58 | 1246 | |
365c70b1 JJ |
1247 | qt.args = args; |
1248 | qt.from_tty = from_tty; | |
1249 | ||
b0abbc58 | 1250 | /* We want to handle any quit errors and exit regardless. */ |
365c70b1 | 1251 | catch_errors (quit_target, &qt, |
b0abbc58 JJ |
1252 | "Quitting: ", RETURN_MASK_ALL); |
1253 | ||
9e0b60a8 JM |
1254 | exit (exit_code); |
1255 | } | |
1256 | ||
910c5da8 JB |
1257 | /* If OFF, the debugger will run in non-interactive mode, which means |
1258 | that it will automatically select the default answer to all the | |
1259 | queries made to the user. If ON, gdb will wait for the user to | |
1260 | answer all queries. If AUTO, gdb will determine whether to run | |
1261 | in interactive mode or not depending on whether stdin is a terminal | |
1262 | or not. */ | |
1263 | static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
1264 | ||
1265 | /* Implement the "show interactive-mode" option. */ | |
1266 | ||
1267 | static void | |
1268 | show_interactive_mode (struct ui_file *file, int from_tty, | |
1269 | struct cmd_list_element *c, | |
1270 | const char *value) | |
1271 | { | |
1272 | if (interactive_mode == AUTO_BOOLEAN_AUTO) | |
1273 | fprintf_filtered (file, "\ | |
1274 | Debugger's interactive mode is %s (currently %s).\n", | |
1275 | value, input_from_terminal_p () ? "on" : "off"); | |
1276 | else | |
1277 | fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value); | |
1278 | } | |
1279 | ||
698ba934 DJ |
1280 | /* Returns whether GDB is running on a terminal and input is |
1281 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1282 | |
1283 | int | |
fba45db2 | 1284 | input_from_terminal_p (void) |
9e0b60a8 | 1285 | { |
910c5da8 JB |
1286 | if (interactive_mode != AUTO_BOOLEAN_AUTO) |
1287 | return interactive_mode == AUTO_BOOLEAN_TRUE; | |
1288 | ||
c63a1f86 JK |
1289 | if (batch_flag) |
1290 | return 0; | |
1291 | ||
698ba934 DJ |
1292 | if (gdb_has_a_terminal () && instream == stdin) |
1293 | return 1; | |
1294 | ||
1295 | /* If INSTREAM is unset, and we are not in a user command, we | |
1296 | must be in Insight. That's like having a terminal, for our | |
1297 | purposes. */ | |
1298 | if (instream == NULL && !in_user_command) | |
1299 | return 1; | |
1300 | ||
1301 | return 0; | |
9e0b60a8 JM |
1302 | } |
1303 | \f | |
9e0b60a8 | 1304 | static void |
fba45db2 | 1305 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1306 | { |
c5aa993b JM |
1307 | *line = 0; /* Can't call dont_repeat here because we're not |
1308 | necessarily reading from stdin. */ | |
9e0b60a8 JM |
1309 | } |
1310 | \f | |
1311 | /* Functions to manipulate command line editing control variables. */ | |
1312 | ||
1313 | /* Number of commands to print in each call to show_commands. */ | |
1314 | #define Hist_print 10 | |
d318976c | 1315 | void |
fba45db2 | 1316 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1317 | { |
1318 | /* Index for history commands. Relative to history_base. */ | |
1319 | int offset; | |
1320 | ||
1321 | /* Number of the history entry which we are planning to display next. | |
1322 | Relative to history_base. */ | |
1323 | static int num = 0; | |
1324 | ||
1325 | /* The first command in the history which doesn't exist (i.e. one more | |
1326 | than the number of the last command). Relative to history_base. */ | |
1327 | int hist_len; | |
1328 | ||
9e0b60a8 JM |
1329 | /* Print out some of the commands from the command history. */ |
1330 | /* First determine the length of the history list. */ | |
1331 | hist_len = history_size; | |
1332 | for (offset = 0; offset < history_size; offset++) | |
1333 | { | |
1334 | if (!history_get (history_base + offset)) | |
1335 | { | |
1336 | hist_len = offset; | |
1337 | break; | |
1338 | } | |
1339 | } | |
1340 | ||
1341 | if (args) | |
1342 | { | |
1343 | if (args[0] == '+' && args[1] == '\0') | |
1344 | /* "info editing +" should print from the stored position. */ | |
1345 | ; | |
1346 | else | |
1347 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1348 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1349 | } |
1350 | /* "show commands" means print the last Hist_print commands. */ | |
1351 | else | |
1352 | { | |
1353 | num = hist_len - Hist_print; | |
1354 | } | |
1355 | ||
1356 | if (num < 0) | |
1357 | num = 0; | |
1358 | ||
1359 | /* If there are at least Hist_print commands, we want to display the last | |
1360 | Hist_print rather than, say, the last 6. */ | |
1361 | if (hist_len - num < Hist_print) | |
1362 | { | |
1363 | num = hist_len - Hist_print; | |
1364 | if (num < 0) | |
1365 | num = 0; | |
1366 | } | |
1367 | ||
1368 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1369 | { | |
1370 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1371 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1372 | } |
1373 | ||
1374 | /* The next command we want to display is the next one that we haven't | |
1375 | displayed yet. */ | |
1376 | num += Hist_print; | |
1377 | ||
1378 | /* If the user repeats this command with return, it should do what | |
1379 | "show commands +" does. This is unnecessary if arg is null, | |
1380 | because "show commands +" is not useful after "show commands". */ | |
1381 | if (from_tty && args) | |
1382 | { | |
1383 | args[0] = '+'; | |
1384 | args[1] = '\0'; | |
1385 | } | |
1386 | } | |
1387 | ||
1388 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1389 | static void |
fba45db2 | 1390 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1391 | { |
1392 | if (history_size == INT_MAX) | |
1393 | unstifle_history (); | |
1394 | else if (history_size >= 0) | |
1395 | stifle_history (history_size); | |
1396 | else | |
1397 | { | |
1398 | history_size = INT_MAX; | |
8a3fe4f8 | 1399 | error (_("History size must be non-negative")); |
9e0b60a8 JM |
1400 | } |
1401 | } | |
1402 | ||
d318976c | 1403 | void |
fba45db2 | 1404 | set_history (char *args, int from_tty) |
9e0b60a8 | 1405 | { |
a3f17187 | 1406 | printf_unfiltered (_("\"set history\" must be followed by the name of a history subcommand.\n")); |
9e0b60a8 JM |
1407 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1408 | } | |
1409 | ||
d318976c | 1410 | void |
fba45db2 | 1411 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1412 | { |
1413 | cmd_show_list (showhistlist, from_tty, ""); | |
1414 | } | |
1415 | ||
1416 | int info_verbose = 0; /* Default verbose msgs off */ | |
1417 | ||
1418 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1419 | void |
fba45db2 | 1420 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1421 | { |
1422 | char *cmdname = "verbose"; | |
1423 | struct cmd_list_element *showcmd; | |
1424 | ||
1425 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1426 | ||
1427 | if (info_verbose) | |
1428 | { | |
1429 | c->doc = "Set verbose printing of informational messages."; | |
1430 | showcmd->doc = "Show verbose printing of informational messages."; | |
1431 | } | |
1432 | else | |
1433 | { | |
1434 | c->doc = "Set verbosity."; | |
1435 | showcmd->doc = "Show verbosity."; | |
1436 | } | |
1437 | } | |
1438 | ||
9e0b60a8 JM |
1439 | /* Init the history buffer. Note that we are called after the init file(s) |
1440 | * have been read so that the user can change the history file via his | |
1441 | * .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1442 | * overrides all of this. | |
1443 | */ | |
1444 | ||
1445 | void | |
fba45db2 | 1446 | init_history (void) |
9e0b60a8 JM |
1447 | { |
1448 | char *tmpenv; | |
1449 | ||
1450 | tmpenv = getenv ("HISTSIZE"); | |
1451 | if (tmpenv) | |
1452 | history_size = atoi (tmpenv); | |
1453 | else if (!history_size) | |
1454 | history_size = 256; | |
1455 | ||
1456 | stifle_history (history_size); | |
1457 | ||
1458 | tmpenv = getenv ("GDBHISTFILE"); | |
1459 | if (tmpenv) | |
1b36a34b | 1460 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1461 | else if (!history_filename) |
1462 | { | |
1463 | /* We include the current directory so that if the user changes | |
1464 | directories the file written will be the same as the one | |
1465 | that was read. */ | |
a0b3c4fd | 1466 | #ifdef __MSDOS__ |
eb2f494a | 1467 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1468 | history_filename = concat (current_directory, "/_gdb_history", |
1469 | (char *)NULL); | |
a0b3c4fd | 1470 | #else |
1754f103 MK |
1471 | history_filename = concat (current_directory, "/.gdb_history", |
1472 | (char *)NULL); | |
a0b3c4fd | 1473 | #endif |
c5aa993b | 1474 | } |
9e0b60a8 JM |
1475 | read_history (history_filename); |
1476 | } | |
1477 | ||
920d2a44 AC |
1478 | static void |
1479 | show_new_async_prompt (struct ui_file *file, int from_tty, | |
1480 | struct cmd_list_element *c, const char *value) | |
1481 | { | |
1482 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1483 | } | |
1484 | ||
1485 | static void | |
1486 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1487 | struct cmd_list_element *c, const char *value) | |
1488 | { | |
1489 | fprintf_filtered (file, _("\ | |
1490 | Editing of command lines as they are typed is %s.\n"), | |
1491 | value); | |
1492 | } | |
1493 | ||
1494 | static void | |
1495 | show_annotation_level (struct ui_file *file, int from_tty, | |
1496 | struct cmd_list_element *c, const char *value) | |
1497 | { | |
1498 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1499 | } | |
1500 | ||
1501 | static void | |
1502 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1503 | struct cmd_list_element *c, const char *value) | |
1504 | { | |
1505 | fprintf_filtered (file, _("\ | |
1506 | Notification of completion for asynchronous execution commands is %s.\n"), | |
1507 | value); | |
1508 | } | |
9e0b60a8 | 1509 | static void |
fba45db2 | 1510 | init_main (void) |
9e0b60a8 | 1511 | { |
362646f5 AC |
1512 | /* initialize the prompt stack to a simple "(gdb) " prompt or to |
1513 | whatever the DEFAULT_PROMPT is. */ | |
1514 | the_prompts.top = 0; | |
1515 | PREFIX (0) = ""; | |
1b36a34b | 1516 | PROMPT (0) = xstrdup (DEFAULT_PROMPT); |
362646f5 AC |
1517 | SUFFIX (0) = ""; |
1518 | /* Set things up for annotation_level > 1, if the user ever decides | |
1519 | to use it. */ | |
1520 | async_annotation_suffix = "prompt"; | |
1521 | /* Set the variable associated with the setshow prompt command. */ | |
1b36a34b | 1522 | new_async_prompt = xstrdup (PROMPT (0)); |
362646f5 AC |
1523 | |
1524 | /* If gdb was started with --annotate=2, this is equivalent to the | |
1525 | user entering the command 'set annotate 2' at the gdb prompt, so | |
1526 | we need to do extra processing. */ | |
1527 | if (annotation_level > 1) | |
1528 | set_async_annotation_level (NULL, 0, NULL); | |
9e0b60a8 JM |
1529 | |
1530 | /* Set the important stuff up for command editing. */ | |
1531 | command_editing_p = 1; | |
9e0b60a8 JM |
1532 | history_expansion_p = 0; |
1533 | write_history_p = 0; | |
1534 | ||
1535 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 1536 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
38017ce8 | 1537 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1538 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1539 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1540 | rl_readline_name = "gdb"; |
7cb3ec5e | 1541 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1542 | |
467d8519 TT |
1543 | /* The name for this defun comes from Bash, where it originated. |
1544 | 15 is Control-o, the same binding this function has in Bash. */ | |
1545 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1546 | ||
4d28ad1e AC |
1547 | add_setshow_string_cmd ("prompt", class_support, |
1548 | &new_async_prompt, _("\ | |
1549 | Set gdb's prompt"), _("\ | |
1550 | Show gdb's prompt"), NULL, | |
1551 | set_async_prompt, | |
920d2a44 | 1552 | show_new_async_prompt, |
4d28ad1e | 1553 | &setlist, &showlist); |
9e0b60a8 | 1554 | |
1bedd215 AC |
1555 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
1556 | Don't repeat this command.\n\ | |
9e0b60a8 | 1557 | Primarily used inside of user-defined commands that should not be repeated when\n\ |
1bedd215 | 1558 | hitting return.")); |
9e0b60a8 | 1559 | |
5bf193a2 AC |
1560 | add_setshow_boolean_cmd ("editing", class_support, |
1561 | &async_command_editing_p, _("\ | |
1562 | Set editing of command lines as they are typed."), _("\ | |
1563 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1564 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1565 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1566 | EMACS-like or VI-like commands like control-P or ESC."), |
1567 | set_async_editing_command, | |
920d2a44 | 1568 | show_async_command_editing_p, |
5bf193a2 AC |
1569 | &setlist, &showlist); |
1570 | ||
1571 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1572 | Set saving of the history record on exit."), _("\ | |
1573 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1574 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1575 | Without an argument, saving is enabled."), |
1576 | NULL, | |
920d2a44 | 1577 | show_write_history_p, |
5bf193a2 | 1578 | &sethistlist, &showhistlist); |
9e0b60a8 | 1579 | |
4d28ad1e AC |
1580 | add_setshow_integer_cmd ("size", no_class, &history_size, _("\ |
1581 | Set the size of the command history,"), _("\ | |
1582 | Show the size of the command history,"), _("\ | |
1583 | ie. the number of previous commands to keep a record of."), | |
1584 | set_history_size_command, | |
920d2a44 | 1585 | show_history_size, |
4d28ad1e AC |
1586 | &sethistlist, &showhistlist); |
1587 | ||
1588 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1589 | Set the filename in which to record the command history"), _("\ | |
1590 | Show the filename in which to record the command history"), _("\ | |
1591 | (the list of previous commands of which a record is kept)."), | |
1592 | NULL, | |
920d2a44 | 1593 | show_history_filename, |
4d28ad1e | 1594 | &sethistlist, &showhistlist); |
9e0b60a8 | 1595 | |
5bf193a2 AC |
1596 | add_setshow_boolean_cmd ("confirm", class_support, &caution, _("\ |
1597 | Set whether to confirm potentially dangerous operations."), _("\ | |
1598 | Show whether to confirm potentially dangerous operations."), NULL, | |
1599 | NULL, | |
920d2a44 | 1600 | show_caution, |
5bf193a2 | 1601 | &setlist, &showlist); |
9e0b60a8 | 1602 | |
85c07804 AC |
1603 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1604 | Set annotation_level."), _("\ | |
1605 | Show annotation_level."), _("\ | |
9e0b60a8 | 1606 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 AC |
1607 | 2 == output annotated suitably for use by programs that control GDB."), |
1608 | set_async_annotation_level, | |
920d2a44 | 1609 | show_annotation_level, |
85c07804 | 1610 | &setlist, &showlist); |
362646f5 | 1611 | |
5bf193a2 AC |
1612 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1613 | &exec_done_display_p, _("\ | |
1614 | Set notification of completion for asynchronous execution commands."), _("\ | |
1615 | Show notification of completion for asynchronous execution commands."), _("\ | |
1616 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1617 | NULL, | |
920d2a44 | 1618 | show_exec_done_display_p, |
5bf193a2 | 1619 | &setlist, &showlist); |
b14b1491 | 1620 | |
910c5da8 JB |
1621 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, |
1622 | &interactive_mode, _("\ | |
1623 | Set whether GDB should run in interactive mode or not"), _("\ | |
1624 | Show whether GDB runs in interactive mode"), _("\ | |
1625 | If on, run in interactive mode and wait for the user to answer\n\ | |
1626 | all queries. If off, run in non-interactive mode and automatically\n\ | |
1627 | assume the default answer to all queries. If auto (the default),\n\ | |
1628 | determine which mode to use based on the standard input settings"), | |
1629 | NULL, | |
1630 | show_interactive_mode, | |
1631 | &setlist, &showlist); | |
1632 | ||
b14b1491 TT |
1633 | add_setshow_filename_cmd ("data-directory", class_maintenance, |
1634 | &gdb_datadir, _("Set GDB's data directory."), | |
1635 | _("Show GDB's data directory."), | |
1636 | _("\ | |
1637 | When set, GDB uses the specified path to search for data files."), | |
1638 | NULL, NULL, | |
1639 | &setlist, | |
1640 | &showlist); | |
9e0b60a8 | 1641 | } |
64cdedad EZ |
1642 | |
1643 | void | |
1644 | gdb_init (char *argv0) | |
1645 | { | |
1646 | if (pre_init_ui_hook) | |
1647 | pre_init_ui_hook (); | |
1648 | ||
1649 | /* Run the init function of each source file */ | |
1650 | ||
64cdedad EZ |
1651 | #ifdef __MSDOS__ |
1652 | /* Make sure we return to the original directory upon exit, come | |
1653 | what may, since the OS doesn't do that for us. */ | |
1654 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1655 | #endif | |
1656 | ||
1657 | init_cmd_lists (); /* This needs to be done first */ | |
1658 | initialize_targets (); /* Setup target_terminal macros for utils.c */ | |
1659 | initialize_utils (); /* Make errors and warnings possible */ | |
1660 | initialize_all_files (); | |
6c95b8df PA |
1661 | /* This creates the current_program_space. Do this after all the |
1662 | _initialize_foo routines have had a chance to install their | |
1663 | per-sspace data keys. Also do this before | |
1664 | initialize_current_architecture is called, because it accesses | |
1665 | exec_bfd of the current program space. */ | |
1666 | initialize_progspace (); | |
1667 | initialize_inferiors (); | |
64cdedad EZ |
1668 | initialize_current_architecture (); |
1669 | init_cli_cmds(); | |
1670 | init_main (); /* But that omits this file! Do it now */ | |
1671 | ||
0ea3f30e DJ |
1672 | initialize_stdin_serial (); |
1673 | ||
362646f5 | 1674 | async_init_signals (); |
64cdedad EZ |
1675 | |
1676 | /* We need a default language for parsing expressions, so simple things like | |
1677 | "set width 0" won't fail if no language is explicitly set in a config file | |
1678 | or implicitly set by reading an executable during startup. */ | |
1679 | set_language (language_c); | |
1680 | expected_language = current_language; /* don't warn about the change. */ | |
1681 | ||
9a4105ab AC |
1682 | /* Allow another UI to initialize. If the UI fails to initialize, |
1683 | and it wants GDB to revert to the CLI, it should clear | |
1684 | deprecated_init_ui_hook. */ | |
1685 | if (deprecated_init_ui_hook) | |
1686 | deprecated_init_ui_hook (argv0); | |
64cdedad | 1687 | } |