Commit | Line | Data |
---|---|---|
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, |
7b6bb8da | 5 | 2008, 2009, 2010, 2011 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" |
9dea9163 | 50 | #include "python/python.h" |
c906108c | 51 | |
371d5dec | 52 | /* readline include files. */ |
dbda9972 AC |
53 | #include "readline/readline.h" |
54 | #include "readline/history.h" | |
c906108c SS |
55 | |
56 | /* readline defines this. */ | |
57 | #undef savestring | |
58 | ||
59 | #include <sys/types.h> | |
c906108c | 60 | |
c2c6d25f | 61 | #include "event-top.h" |
c906108c SS |
62 | #include "gdb_string.h" |
63 | #include "gdb_stat.h" | |
64 | #include <ctype.h> | |
8b93c638 JM |
65 | #include "ui-out.h" |
66 | #include "cli-out.h" | |
c906108c | 67 | |
371d5dec | 68 | /* Default command line prompt. This is overriden in some configs. */ |
104c1213 JM |
69 | |
70 | #ifndef DEFAULT_PROMPT | |
71 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
72 | #endif |
73 | ||
74 | /* Initialization file name for gdb. This is overridden in some configs. */ | |
75 | ||
eaae3919 EZ |
76 | #ifndef PATH_MAX |
77 | # ifdef FILENAME_MAX | |
78 | # define PATH_MAX FILENAME_MAX | |
79 | # else | |
80 | # define PATH_MAX 512 | |
81 | # endif | |
82 | #endif | |
83 | ||
c906108c SS |
84 | #ifndef GDBINIT_FILENAME |
85 | #define GDBINIT_FILENAME ".gdbinit" | |
86 | #endif | |
eaae3919 | 87 | char gdbinit[PATH_MAX + 1] = GDBINIT_FILENAME; |
c906108c SS |
88 | |
89 | int inhibit_gdbinit = 0; | |
90 | ||
91 | /* If nonzero, and GDB has been configured to be able to use windows, | |
92 | attempt to open them upon startup. */ | |
93 | ||
f15ab4a7 | 94 | int use_windows = 0; |
c906108c | 95 | |
c906108c SS |
96 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
97 | ||
98 | /* Flag for whether we want all the "from_tty" gubbish printed. */ | |
99 | ||
371d5dec | 100 | int caution = 1; /* Default is yes, sigh. */ |
920d2a44 AC |
101 | static void |
102 | show_caution (struct ui_file *file, int from_tty, | |
103 | struct cmd_list_element *c, const char *value) | |
104 | { | |
105 | fprintf_filtered (file, _("\ | |
106 | Whether to confirm potentially dangerous operations is %s.\n"), | |
107 | value); | |
108 | } | |
c906108c | 109 | |
371d5dec MS |
110 | /* stdio stream that command input is being read from. Set to stdin |
111 | normally. Set by source_command to the file we are sourcing. Set | |
112 | to NULL if we are executing a user-defined command or interacting | |
113 | via a GUI. */ | |
c906108c SS |
114 | |
115 | FILE *instream; | |
116 | ||
698ba934 DJ |
117 | /* Flag to indicate whether a user defined command is currently running. */ |
118 | ||
119 | int in_user_command; | |
120 | ||
c906108c SS |
121 | /* Current working directory. */ |
122 | ||
123 | char *current_directory; | |
124 | ||
125 | /* The directory name is actually stored here (usually). */ | |
126 | char gdb_dirbuf[1024]; | |
127 | ||
128 | /* Function to call before reading a command, if nonzero. | |
129 | The function receives two args: an input stream, | |
130 | and a prompt string. */ | |
131 | ||
507f3c78 | 132 | void (*window_hook) (FILE *, char *); |
c906108c SS |
133 | |
134 | int epoch_interface; | |
135 | int xgdb_verbose; | |
136 | ||
c906108c SS |
137 | /* Buffer used for reading command lines, and the size |
138 | allocated for it so far. */ | |
139 | ||
140 | char *line; | |
141 | int linesize = 100; | |
142 | ||
143 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 144 | affects things like recording into the command history, commands |
c906108c SS |
145 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
146 | whatever) can issue its own commands and also send along commands | |
147 | from the user, and have the user not notice that the user interface | |
148 | is issuing commands too. */ | |
149 | int server_command; | |
150 | ||
151 | /* Baud rate specified for talking to serial target systems. Default | |
152 | is left as -1, so targets can choose their own defaults. */ | |
371d5dec MS |
153 | /* FIXME: This means that "show remotebaud" and gr_files_info can |
154 | print -1 or (unsigned int)-1. This is a Bad User Interface. */ | |
c906108c SS |
155 | |
156 | int baud_rate = -1; | |
157 | ||
371d5dec | 158 | /* Timeout limit for response from target. */ |
c906108c | 159 | |
ce808e91 AC |
160 | /* The default value has been changed many times over the years. It |
161 | was originally 5 seconds. But that was thought to be a long time | |
162 | to sit and wait, so it was changed to 2 seconds. That was thought | |
163 | to be plenty unless the connection was going through some terminal | |
164 | server or multiplexer or other form of hairy serial connection. | |
165 | ||
166 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
167 | it began being used in other remote-* targets. It appears that the | |
168 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 169 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
170 | |
171 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
172 | 20 seconds is far worse. This demonstrates the difficulty of using | |
173 | a single variable for all protocol timeouts. | |
174 | ||
175 | As remote.c is used much more than remote-e7000.c, it was changed | |
371d5dec | 176 | back to 2 seconds in 1999. */ |
ce808e91 AC |
177 | |
178 | int remote_timeout = 2; | |
c906108c SS |
179 | |
180 | /* Non-zero tells remote* modules to output debugging info. */ | |
181 | ||
182 | int remote_debug = 0; | |
183 | ||
6dd77b81 RH |
184 | /* Sbrk location on entry to main. Used for statistics only. */ |
185 | #ifdef HAVE_SBRK | |
186 | char *lim_at_start; | |
187 | #endif | |
188 | ||
c906108c SS |
189 | /* Hooks for alternate command interfaces. */ |
190 | ||
371d5dec MS |
191 | /* Called after most modules have been initialized, but before taking |
192 | users command file. | |
1ad24239 | 193 | |
371d5dec MS |
194 | If the UI fails to initialize and it wants GDB to continue using |
195 | the default UI, then it should clear this hook before returning. */ | |
c906108c | 196 | |
9a4105ab | 197 | void (*deprecated_init_ui_hook) (char *argv0); |
7a292a7a | 198 | |
371d5dec MS |
199 | /* This hook is called from within gdb's many mini-event loops which |
200 | could steal control from a real user interface's event loop. It | |
201 | returns non-zero if the user is requesting a detach, zero | |
202 | otherwise. */ | |
7a292a7a | 203 | |
98bbd631 | 204 | int (*deprecated_ui_loop_hook) (int); |
c906108c SS |
205 | |
206 | /* Called instead of command_loop at top level. Can be invoked via | |
b5a2688f | 207 | throw_exception(). */ |
c906108c | 208 | |
9a4105ab | 209 | void (*deprecated_command_loop_hook) (void); |
c906108c SS |
210 | |
211 | ||
c906108c SS |
212 | /* Called from print_frame_info to list the line we stopped in. */ |
213 | ||
371d5dec MS |
214 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
215 | int line, | |
216 | int stopline, | |
217 | int noerror); | |
c906108c SS |
218 | /* Replaces most of query. */ |
219 | ||
9a4105ab | 220 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
221 | |
222 | /* Replaces most of warning. */ | |
223 | ||
9a4105ab | 224 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 225 | |
9a4105ab AC |
226 | /* These three functions support getting lines of text from the user. |
227 | They are used in sequence. First deprecated_readline_begin_hook is | |
228 | called with a text string that might be (for example) a message for | |
229 | the user to type in a sequence of commands to be executed at a | |
230 | breakpoint. If this function calls back to a GUI, it might take | |
231 | this opportunity to pop up a text interaction window with this | |
232 | message. Next, deprecated_readline_hook is called with a prompt | |
233 | that is emitted prior to collecting the user input. It can be | |
234 | called multiple times. Finally, deprecated_readline_end_hook is | |
235 | called to notify the GUI that we are done with the interaction | |
236 | window and it can close it. */ | |
c906108c | 237 | |
9a4105ab AC |
238 | void (*deprecated_readline_begin_hook) (char *, ...); |
239 | char *(*deprecated_readline_hook) (char *); | |
240 | void (*deprecated_readline_end_hook) (void); | |
c906108c | 241 | |
6426a772 | 242 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 243 | to or detached from an already running process. */ |
6426a772 | 244 | |
9a4105ab AC |
245 | void (*deprecated_attach_hook) (void); |
246 | void (*deprecated_detach_hook) (void); | |
6426a772 | 247 | |
371d5dec MS |
248 | /* Called during long calculations to allow GUI to repair window |
249 | damage, and to check for stop buttons, etc... */ | |
c906108c | 250 | |
9a4105ab | 251 | void (*deprecated_interactive_hook) (void); |
c906108c | 252 | |
c906108c SS |
253 | /* Tell the GUI someone changed the register REGNO. -1 means |
254 | that the caller does not know which register changed or | |
371d5dec | 255 | that several registers have changed (see value_assign). */ |
9a4105ab | 256 | void (*deprecated_register_changed_hook) (int regno); |
c906108c | 257 | |
371d5dec MS |
258 | /* Called when going to wait for the target. Usually allows the GUI |
259 | to run while waiting for target events. */ | |
c906108c | 260 | |
9a4105ab | 261 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
262 | struct target_waitstatus *status, |
263 | int options); | |
c906108c | 264 | |
371d5dec MS |
265 | /* Used by UI as a wrapper around command execution. May do various |
266 | things like enabling/disabling buttons, etc... */ | |
c906108c | 267 | |
371d5dec MS |
268 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
269 | char *cmd, int from_tty); | |
c906108c | 270 | |
96baa820 JM |
271 | /* Called after a `set' command has finished. Is only run if the |
272 | `set' command succeeded. */ | |
273 | ||
9a4105ab | 274 | void (*deprecated_set_hook) (struct cmd_list_element * c); |
96baa820 | 275 | |
c906108c SS |
276 | /* Called when the current thread changes. Argument is thread id. */ |
277 | ||
9a4105ab | 278 | void (*deprecated_context_hook) (int id); |
c906108c | 279 | |
c906108c SS |
280 | /* Handler for SIGHUP. */ |
281 | ||
282 | #ifdef SIGHUP | |
392a587b | 283 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 SS |
284 | gdb to use the event loop as the default command loop and we merge |
285 | event-top.c into this file, top.c */ | |
286 | /* static */ int | |
d0c8cdfb | 287 | quit_cover (void *s) |
c906108c | 288 | { |
c5aa993b | 289 | caution = 0; /* Throw caution to the wind -- we're exiting. |
371d5dec MS |
290 | This prevents asking the user dumb |
291 | questions. */ | |
c5aa993b | 292 | quit_command ((char *) 0, 0); |
c906108c SS |
293 | return 0; |
294 | } | |
295 | #endif /* defined SIGHUP */ | |
296 | \f | |
297 | /* Line number we are currently in in a file which is being sourced. */ | |
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 */ | |
301 | /* static */ int source_line_number; | |
c906108c SS |
302 | |
303 | /* Name of the file we are sourcing. */ | |
392a587b | 304 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
305 | gdb to use the event loop as the default command loop and we merge |
306 | event-top.c into this file, top.c */ | |
05159abe | 307 | /* static */ const char *source_file_name; |
c906108c | 308 | |
c906108c SS |
309 | /* Clean up on error during a "source" command (or execution of a |
310 | user-defined command). */ | |
311 | ||
d318976c | 312 | void |
e41a3b1a | 313 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
314 | { |
315 | /* Restore the previous input stream. */ | |
316 | instream = stream; | |
317 | } | |
318 | ||
319 | /* Read commands from STREAM. */ | |
320 | void | |
fba45db2 | 321 | read_command_file (FILE *stream) |
c906108c SS |
322 | { |
323 | struct cleanup *cleanups; | |
324 | ||
e41a3b1a | 325 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 326 | instream = stream; |
c5aa993b | 327 | command_loop (); |
c906108c SS |
328 | do_cleanups (cleanups); |
329 | } | |
330 | \f | |
507f3c78 | 331 | void (*pre_init_ui_hook) (void); |
c906108c | 332 | |
e41a3b1a AC |
333 | #ifdef __MSDOS__ |
334 | void | |
335 | do_chdir_cleanup (void *old_dir) | |
336 | { | |
337 | chdir (old_dir); | |
b8c9b27d | 338 | xfree (old_dir); |
e41a3b1a AC |
339 | } |
340 | #endif | |
341 | ||
4e5d721f DE |
342 | void |
343 | prepare_execute_command (void) | |
344 | { | |
345 | free_all_values (); | |
346 | ||
371d5dec MS |
347 | /* With multiple threads running while the one we're examining is |
348 | stopped, the dcache can get stale without us being able to detect | |
349 | it. For the duration of the command, though, use the dcache to | |
350 | help things like backtrace. */ | |
4e5d721f DE |
351 | if (non_stop) |
352 | target_dcache_invalidate (); | |
353 | } | |
354 | ||
648bf667 | 355 | /* Execute the line P as a command, in the current user context. |
d318976c | 356 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 357 | |
d318976c FN |
358 | void |
359 | execute_command (char *p, int from_tty) | |
c906108c | 360 | { |
52f0bd74 AC |
361 | struct cmd_list_element *c; |
362 | enum language flang; | |
d318976c FN |
363 | static int warned = 0; |
364 | char *line; | |
4e5d721f DE |
365 | |
366 | prepare_execute_command (); | |
c906108c | 367 | |
d318976c FN |
368 | /* Force cleanup of any alloca areas if using C alloca instead of |
369 | a builtin alloca. */ | |
370 | alloca (0); | |
c906108c | 371 | |
d318976c FN |
372 | /* This can happen when command_line_input hits end of file. */ |
373 | if (p == NULL) | |
374 | return; | |
c906108c | 375 | |
49d03eab | 376 | target_log_command (p); |
8b93c638 | 377 | |
d318976c FN |
378 | while (*p == ' ' || *p == '\t') |
379 | p++; | |
380 | if (*p) | |
8b93c638 | 381 | { |
d318976c FN |
382 | char *arg; |
383 | line = p; | |
8b93c638 | 384 | |
16026cd7 AS |
385 | /* If trace-commands is set then this will print this command. */ |
386 | print_command_trace (p); | |
387 | ||
d318976c | 388 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 389 | |
d318976c FN |
390 | /* Pass null arg rather than an empty one. */ |
391 | arg = *p ? p : 0; | |
8b93c638 | 392 | |
9f60d481 AC |
393 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
394 | while the is_complete_command(cfunc) test is just plain | |
395 | bogus. They should both be replaced by a test of the form | |
396 | c->strip_trailing_white_space_p. */ | |
397 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
398 | can't be replaced with func. This is because it is the | |
399 | cfunc, and not the func, that has the value that the | |
400 | is_complete_command hack is testing for. */ | |
401 | /* Clear off trailing whitespace, except for set and complete | |
402 | command. */ | |
d318976c FN |
403 | if (arg |
404 | && c->type != set_cmd | |
bbaca940 | 405 | && !is_complete_command (c)) |
8b93c638 | 406 | { |
d318976c FN |
407 | p = arg + strlen (arg) - 1; |
408 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
409 | p--; | |
410 | *(p + 1) = '\0'; | |
8b93c638 JM |
411 | } |
412 | ||
371d5dec | 413 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 414 | execute_cmd_pre_hook (c); |
c906108c | 415 | |
d318976c FN |
416 | if (c->flags & DEPRECATED_WARN_USER) |
417 | deprecated_cmd_warning (&line); | |
c906108c | 418 | |
d318976c FN |
419 | if (c->class == class_user) |
420 | execute_user_command (c, arg); | |
421 | else if (c->type == set_cmd || c->type == show_cmd) | |
422 | do_setshow_command (arg, from_tty & caution, c); | |
f436dd25 | 423 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 424 | error (_("That is not a command, just a help topic.")); |
9a4105ab AC |
425 | else if (deprecated_call_command_hook) |
426 | deprecated_call_command_hook (c, arg, from_tty & caution); | |
d318976c | 427 | else |
f436dd25 | 428 | cmd_func (c, arg, from_tty & caution); |
d318976c | 429 | |
371d5dec | 430 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 431 | execute_cmd_post_hook (c); |
c906108c | 432 | |
c906108c SS |
433 | } |
434 | ||
52efb61a DJ |
435 | /* Tell the user if the language has changed (except first time). |
436 | First make sure that a new frame has been selected, in case this | |
437 | command or the hooks changed the program state. */ | |
438 | deprecated_safe_get_selected_frame (); | |
d318976c | 439 | if (current_language != expected_language) |
c906108c | 440 | { |
52efb61a | 441 | if (language_mode == language_mode_auto && info_verbose) |
c906108c | 442 | { |
d318976c | 443 | language_info (1); /* Print what changed. */ |
c906108c | 444 | } |
d318976c | 445 | warned = 0; |
c906108c SS |
446 | } |
447 | ||
d318976c FN |
448 | /* Warn the user if the working language does not match the |
449 | language of the current frame. Only warn the user if we are | |
371d5dec | 450 | actually running the program, i.e. there is a stack. */ |
d318976c FN |
451 | /* FIXME: This should be cacheing the frame and only running when |
452 | the frame changes. */ | |
453 | ||
d729566a | 454 | if (has_stack_frames ()) |
c906108c | 455 | { |
d318976c FN |
456 | flang = get_frame_language (); |
457 | if (!warned | |
458 | && flang != language_unknown | |
459 | && flang != current_language->la_language) | |
c906108c | 460 | { |
d318976c FN |
461 | printf_filtered ("%s\n", lang_frame_mismatch_warn); |
462 | warned = 1; | |
c906108c | 463 | } |
c906108c SS |
464 | } |
465 | } | |
466 | ||
5da1313b JK |
467 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
468 | returned string, do not display it to the screen. BATCH_FLAG will be | |
469 | temporarily set to true. */ | |
470 | ||
471 | char * | |
472 | execute_command_to_string (char *p, int from_tty) | |
473 | { | |
474 | struct ui_file *str_file; | |
475 | struct cleanup *cleanup; | |
476 | char *retval; | |
477 | ||
478 | /* GDB_STDOUT should be better already restored during these | |
479 | restoration callbacks. */ | |
480 | cleanup = set_batch_flag_and_make_cleanup_restore_page_info (); | |
481 | ||
482 | str_file = mem_fileopen (); | |
483 | ||
8d4d924b | 484 | make_cleanup_ui_file_delete (str_file); |
5da1313b JK |
485 | make_cleanup_restore_ui_file (&gdb_stdout); |
486 | make_cleanup_restore_ui_file (&gdb_stderr); | |
8d4d924b JK |
487 | make_cleanup_restore_ui_file (&gdb_stdlog); |
488 | make_cleanup_restore_ui_file (&gdb_stdtarg); | |
489 | make_cleanup_restore_ui_file (&gdb_stdtargerr); | |
490 | ||
491 | if (ui_out_redirect (uiout, str_file) < 0) | |
492 | warning (_("Current output protocol does not support redirection")); | |
493 | else | |
494 | make_cleanup_ui_out_redirect_pop (uiout); | |
5da1313b JK |
495 | |
496 | gdb_stdout = str_file; | |
497 | gdb_stderr = str_file; | |
8d4d924b JK |
498 | gdb_stdlog = str_file; |
499 | gdb_stdtarg = str_file; | |
500 | gdb_stdtargerr = str_file; | |
5da1313b JK |
501 | |
502 | execute_command (p, from_tty); | |
503 | ||
504 | retval = ui_file_xstrdup (str_file, NULL); | |
505 | ||
506 | do_cleanups (cleanup); | |
507 | ||
508 | return retval; | |
509 | } | |
510 | ||
d318976c FN |
511 | /* Read commands from `instream' and execute them |
512 | until end of file or error reading instream. */ | |
c906108c | 513 | |
d318976c FN |
514 | void |
515 | command_loop (void) | |
c906108c | 516 | { |
d318976c FN |
517 | struct cleanup *old_chain; |
518 | char *command; | |
519 | int stdin_is_tty = ISATTY (stdin); | |
c5aa993b | 520 | |
d318976c FN |
521 | while (instream && !feof (instream)) |
522 | { | |
d318976c FN |
523 | if (window_hook && instream == stdin) |
524 | (*window_hook) (instream, get_prompt ()); | |
c906108c | 525 | |
d318976c FN |
526 | quit_flag = 0; |
527 | if (instream == stdin && stdin_is_tty) | |
528 | reinitialize_more_filter (); | |
529 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 530 | |
371d5dec | 531 | /* Get a command-line. This calls the readline package. */ |
d318976c FN |
532 | command = command_line_input (instream == stdin ? |
533 | get_prompt () : (char *) NULL, | |
534 | instream == stdin, "prompt"); | |
d318976c FN |
535 | if (command == 0) |
536 | return; | |
c906108c | 537 | |
0f3bb72e | 538 | make_command_stats_cleanup (1); |
9e0b60a8 | 539 | |
d318976c | 540 | execute_command (command, instream == stdin); |
347bddb7 PA |
541 | |
542 | /* Do any commands attached to breakpoint we are stopped at. */ | |
543 | bpstat_do_actions (); | |
544 | ||
d318976c | 545 | do_cleanups (old_chain); |
9e0b60a8 | 546 | } |
9e0b60a8 | 547 | } |
d318976c FN |
548 | \f |
549 | /* Commands call this if they do not want to be repeated by null lines. */ | |
9e0b60a8 | 550 | |
d318976c FN |
551 | void |
552 | dont_repeat (void) | |
9e0b60a8 | 553 | { |
d318976c FN |
554 | if (server_command) |
555 | return; | |
9e0b60a8 | 556 | |
d318976c | 557 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
558 | thing read from stdin in line and don't want to delete it. Null |
559 | lines won't repeat here in any case. */ | |
d318976c FN |
560 | if (instream == stdin) |
561 | *line = 0; | |
9e0b60a8 | 562 | } |
d318976c FN |
563 | \f |
564 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 565 | |
d318976c FN |
566 | It prints PROMPT_ARG once at the start. |
567 | Action is compatible with "readline", e.g. space for the result is | |
568 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 569 | |
d318976c FN |
570 | A NULL return means end of file. */ |
571 | char * | |
572 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 573 | { |
d318976c FN |
574 | int c; |
575 | char *result; | |
576 | int input_index = 0; | |
577 | int result_size = 80; | |
9e0b60a8 | 578 | |
d318976c | 579 | if (prompt_arg) |
9e0b60a8 | 580 | { |
d318976c FN |
581 | /* Don't use a _filtered function here. It causes the assumed |
582 | character position to be off, since the newline we read from | |
583 | the user is not accounted for. */ | |
584 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
585 | gdb_flush (gdb_stdout); |
586 | } | |
587 | ||
d318976c | 588 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
589 | |
590 | while (1) | |
591 | { | |
d318976c FN |
592 | /* Read from stdin if we are executing a user defined command. |
593 | This is the right thing for prompt_for_continue, at least. */ | |
594 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 595 | |
d318976c | 596 | if (c == EOF) |
9e0b60a8 | 597 | { |
d318976c FN |
598 | if (input_index > 0) |
599 | /* The last line does not end with a newline. Return it, and | |
600 | if we are called again fgetc will still return EOF and | |
601 | we'll return NULL then. */ | |
9e0b60a8 | 602 | break; |
b8c9b27d | 603 | xfree (result); |
d318976c | 604 | return NULL; |
9e0b60a8 | 605 | } |
c5aa993b | 606 | |
d318976c | 607 | if (c == '\n') |
9e0b60a8 | 608 | { |
d318976c FN |
609 | if (input_index > 0 && result[input_index - 1] == '\r') |
610 | input_index--; | |
611 | break; | |
9e0b60a8 | 612 | } |
9e0b60a8 | 613 | |
d318976c FN |
614 | result[input_index++] = c; |
615 | while (input_index >= result_size) | |
9e0b60a8 | 616 | { |
d318976c FN |
617 | result_size *= 2; |
618 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 619 | } |
9e0b60a8 JM |
620 | } |
621 | ||
d318976c FN |
622 | result[input_index++] = '\0'; |
623 | return result; | |
9e0b60a8 JM |
624 | } |
625 | ||
d318976c FN |
626 | /* Variables which control command line editing and history |
627 | substitution. These variables are given default values at the end | |
628 | of this file. */ | |
629 | static int command_editing_p; | |
920d2a44 | 630 | |
d318976c FN |
631 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
632 | gdb to use the event loop as the default command loop and we merge | |
633 | event-top.c into this file, top.c */ | |
920d2a44 | 634 | |
d318976c | 635 | /* static */ int history_expansion_p; |
920d2a44 | 636 | |
d318976c | 637 | static int write_history_p; |
920d2a44 AC |
638 | static void |
639 | show_write_history_p (struct ui_file *file, int from_tty, | |
640 | struct cmd_list_element *c, const char *value) | |
641 | { | |
642 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
643 | value); | |
644 | } | |
645 | ||
d318976c | 646 | static int history_size; |
920d2a44 AC |
647 | static void |
648 | show_history_size (struct ui_file *file, int from_tty, | |
649 | struct cmd_list_element *c, const char *value) | |
650 | { | |
651 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
652 | value); | |
653 | } | |
654 | ||
d318976c | 655 | static char *history_filename; |
920d2a44 AC |
656 | static void |
657 | show_history_filename (struct ui_file *file, int from_tty, | |
658 | struct cmd_list_element *c, const char *value) | |
659 | { | |
660 | fprintf_filtered (file, _("\ | |
661 | The filename in which to record the command history is \"%s\".\n"), | |
662 | value); | |
663 | } | |
9e0b60a8 | 664 | |
b4f5539f | 665 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 666 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
667 | a single gdb invocation. At the ordinary top-level prompt we might |
668 | be using the async readline. That means we can't use | |
669 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
670 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
671 | `define'), gdb wants a synchronous response. |
672 | ||
673 | We used to call readline() directly, running it in synchronous | |
674 | mode. But mixing modes this way is not supported, and as of | |
675 | readline 5.x it no longer works; the arrow keys come unbound during | |
676 | the synchronous call. So we make a nested call into the event | |
677 | loop. That's what gdb_readline_wrapper is for. */ | |
678 | ||
679 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
680 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
681 | the user types Control-D for EOF. */ | |
682 | static int gdb_readline_wrapper_done; | |
683 | ||
684 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
685 | is seen. */ | |
686 | static char *gdb_readline_wrapper_result; | |
687 | ||
688 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
689 | to be called after the newline is processed (which will redisplay | |
690 | the prompt). But in gdb_readline_wrapper we will not get a new | |
691 | prompt until the next call, or until we return to the event loop. | |
692 | So we disable this hook around the newline and restore it before we | |
693 | return. */ | |
694 | static void (*saved_after_char_processing_hook) (void); | |
695 | ||
696 | /* This function is called when readline has seen a complete line of | |
697 | text. */ | |
698 | ||
699 | static void | |
700 | gdb_readline_wrapper_line (char *line) | |
701 | { | |
702 | gdb_assert (!gdb_readline_wrapper_done); | |
703 | gdb_readline_wrapper_result = line; | |
704 | gdb_readline_wrapper_done = 1; | |
705 | ||
706 | /* Prevent operate-and-get-next from acting too early. */ | |
707 | saved_after_char_processing_hook = after_char_processing_hook; | |
708 | after_char_processing_hook = NULL; | |
1b05479a DJ |
709 | |
710 | /* Prevent parts of the prompt from being redisplayed if annotations | |
711 | are enabled, and readline's state getting out of sync. */ | |
712 | if (async_command_editing_p) | |
713 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
714 | } |
715 | ||
716 | struct gdb_readline_wrapper_cleanup | |
717 | { | |
718 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
719 | int already_prompted_orig; |
720 | }; | |
721 | ||
722 | static void | |
723 | gdb_readline_wrapper_cleanup (void *arg) | |
724 | { | |
725 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
726 | ||
2e03ee74 | 727 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
728 | |
729 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
730 | input_handler = cleanup->handler_orig; | |
731 | gdb_readline_wrapper_result = NULL; | |
732 | gdb_readline_wrapper_done = 0; | |
733 | ||
734 | after_char_processing_hook = saved_after_char_processing_hook; | |
735 | saved_after_char_processing_hook = NULL; | |
736 | ||
737 | xfree (cleanup); | |
738 | } | |
739 | ||
b4f5539f TT |
740 | char * |
741 | gdb_readline_wrapper (char *prompt) | |
742 | { | |
2e03ee74 DJ |
743 | struct cleanup *back_to; |
744 | struct gdb_readline_wrapper_cleanup *cleanup; | |
745 | char *retval; | |
746 | ||
747 | cleanup = xmalloc (sizeof (*cleanup)); | |
748 | cleanup->handler_orig = input_handler; | |
749 | input_handler = gdb_readline_wrapper_line; | |
750 | ||
2e03ee74 DJ |
751 | cleanup->already_prompted_orig = rl_already_prompted; |
752 | ||
753 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
754 | ||
755 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 756 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
757 | rl_already_prompted = 1; |
758 | ||
362646f5 | 759 | if (after_char_processing_hook) |
2e03ee74 DJ |
760 | (*after_char_processing_hook) (); |
761 | gdb_assert (after_char_processing_hook == NULL); | |
762 | ||
763 | /* gdb_do_one_event argument is unused. */ | |
764 | while (gdb_do_one_event (NULL) >= 0) | |
765 | if (gdb_readline_wrapper_done) | |
766 | break; | |
b4f5539f | 767 | |
2e03ee74 DJ |
768 | retval = gdb_readline_wrapper_result; |
769 | do_cleanups (back_to); | |
770 | return retval; | |
b4f5539f TT |
771 | } |
772 | ||
9e0b60a8 | 773 | \f |
467d8519 TT |
774 | /* The current saved history number from operate-and-get-next. |
775 | This is -1 if not valid. */ | |
776 | static int operate_saved_history = -1; | |
777 | ||
778 | /* This is put on the appropriate hook and helps operate-and-get-next | |
779 | do its work. */ | |
b9362cc7 | 780 | static void |
5ae5f592 | 781 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
782 | { |
783 | int delta = where_history () - operate_saved_history; | |
5d502164 | 784 | |
467d8519 TT |
785 | /* The `key' argument to rl_get_previous_history is ignored. */ |
786 | rl_get_previous_history (delta, 0); | |
787 | operate_saved_history = -1; | |
788 | ||
789 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 790 | rl_redisplay (); |
467d8519 TT |
791 | |
792 | after_char_processing_hook = NULL; | |
793 | rl_pre_input_hook = NULL; | |
794 | } | |
795 | ||
796 | /* This is a gdb-local readline command handler. It accepts the | |
797 | current command line (like RET does) and, if this command was taken | |
798 | from the history, arranges for the next command in the history to | |
799 | appear on the command line when the prompt returns. | |
800 | We ignore the arguments. */ | |
801 | static int | |
802 | gdb_rl_operate_and_get_next (int count, int key) | |
803 | { | |
b5686e99 MK |
804 | int where; |
805 | ||
362646f5 AC |
806 | /* Use the async hook. */ |
807 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 808 | |
b5686e99 MK |
809 | /* Find the current line, and find the next line to use. */ |
810 | where = where_history(); | |
811 | ||
812 | /* FIXME: kettenis/20020817: max_input_history is renamed into | |
813 | history_max_entries in readline-4.2. When we do a new readline | |
814 | import, we should probably change it here too, even though | |
815 | readline maintains backwards compatibility for now by still | |
816 | defining max_input_history. */ | |
817 | if ((history_is_stifled () && (history_length >= max_input_history)) || | |
818 | (where >= history_length - 1)) | |
819 | operate_saved_history = where; | |
820 | else | |
821 | operate_saved_history = where + 1; | |
822 | ||
467d8519 TT |
823 | return rl_newline (1, key); |
824 | } | |
825 | \f | |
d318976c FN |
826 | /* Read one line from the command input stream `instream' |
827 | into the local static buffer `linebuffer' (whose current length | |
828 | is `linelength'). | |
829 | The buffer is made bigger as necessary. | |
830 | Returns the address of the start of the line. | |
9e0b60a8 | 831 | |
d318976c | 832 | NULL is returned for end of file. |
9e0b60a8 | 833 | |
d318976c FN |
834 | *If* the instream == stdin & stdin is a terminal, the line read |
835 | is copied into the file line saver (global var char *line, | |
836 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 837 | |
d318976c FN |
838 | This routine either uses fancy command line editing or |
839 | simple input as the user has requested. */ | |
10689f25 | 840 | |
d318976c FN |
841 | char * |
842 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 843 | { |
d318976c FN |
844 | static char *linebuffer = 0; |
845 | static unsigned linelength = 0; | |
52f0bd74 | 846 | char *p; |
d318976c FN |
847 | char *p1; |
848 | char *rl; | |
849 | char *local_prompt = prompt_arg; | |
850 | char *nline; | |
851 | char got_eof = 0; | |
852 | ||
853 | /* The annotation suffix must be non-NULL. */ | |
854 | if (annotation_suffix == NULL) | |
855 | annotation_suffix = ""; | |
9e0b60a8 | 856 | |
d318976c FN |
857 | if (annotation_level > 1 && instream == stdin) |
858 | { | |
859 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
860 | + strlen (annotation_suffix) + 40); | |
861 | if (prompt_arg == NULL) | |
862 | local_prompt[0] = '\0'; | |
863 | else | |
864 | strcpy (local_prompt, prompt_arg); | |
865 | strcat (local_prompt, "\n\032\032"); | |
866 | strcat (local_prompt, annotation_suffix); | |
867 | strcat (local_prompt, "\n"); | |
868 | } | |
9e0b60a8 | 869 | |
d318976c | 870 | if (linebuffer == 0) |
9e0b60a8 | 871 | { |
d318976c FN |
872 | linelength = 80; |
873 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 874 | } |
9e0b60a8 | 875 | |
d318976c | 876 | p = linebuffer; |
9e0b60a8 | 877 | |
d318976c FN |
878 | /* Control-C quits instantly if typed while in this loop |
879 | since it should not wait until the user types a newline. */ | |
880 | immediate_quit++; | |
881 | #ifdef STOP_SIGNAL | |
882 | if (job_control) | |
362646f5 | 883 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
884 | #endif |
885 | ||
886 | while (1) | |
9e0b60a8 | 887 | { |
371d5dec MS |
888 | /* Make sure that all output has been output. Some machines may |
889 | let you get away with leaving out some of the gdb_flush, but | |
890 | not all. */ | |
d318976c FN |
891 | wrap_here (""); |
892 | gdb_flush (gdb_stdout); | |
893 | gdb_flush (gdb_stderr); | |
894 | ||
895 | if (source_file_name != NULL) | |
637537d0 | 896 | ++source_line_number; |
d318976c FN |
897 | |
898 | if (annotation_level > 1 && instream == stdin) | |
899 | { | |
306d9ac5 DC |
900 | puts_unfiltered ("\n\032\032pre-"); |
901 | puts_unfiltered (annotation_suffix); | |
902 | puts_unfiltered ("\n"); | |
d318976c FN |
903 | } |
904 | ||
905 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 906 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 907 | { |
9a4105ab | 908 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 909 | } |
698ba934 | 910 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 911 | { |
b4f5539f | 912 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 913 | } |
9e0b60a8 | 914 | else |
d318976c FN |
915 | { |
916 | rl = gdb_readline (local_prompt); | |
917 | } | |
9e0b60a8 | 918 | |
d318976c FN |
919 | if (annotation_level > 1 && instream == stdin) |
920 | { | |
306d9ac5 DC |
921 | puts_unfiltered ("\n\032\032post-"); |
922 | puts_unfiltered (annotation_suffix); | |
923 | puts_unfiltered ("\n"); | |
d318976c | 924 | } |
9e0b60a8 | 925 | |
d318976c | 926 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 927 | { |
d318976c FN |
928 | got_eof = 1; |
929 | break; | |
9e0b60a8 | 930 | } |
d318976c FN |
931 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
932 | { | |
933 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
934 | nline = (char *) xrealloc (linebuffer, linelength); | |
935 | p += nline - linebuffer; | |
936 | linebuffer = nline; | |
937 | } | |
938 | p1 = rl; | |
939 | /* Copy line. Don't copy null at end. (Leaves line alone | |
371d5dec | 940 | if this was just a newline). */ |
d318976c FN |
941 | while (*p1) |
942 | *p++ = *p1++; | |
9e0b60a8 | 943 | |
b8c9b27d | 944 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 945 | |
d318976c FN |
946 | if (p == linebuffer || *(p - 1) != '\\') |
947 | break; | |
9e0b60a8 | 948 | |
d318976c FN |
949 | p--; /* Put on top of '\'. */ |
950 | local_prompt = (char *) 0; | |
951 | } | |
9e0b60a8 | 952 | |
d318976c FN |
953 | #ifdef STOP_SIGNAL |
954 | if (job_control) | |
955 | signal (STOP_SIGNAL, SIG_DFL); | |
956 | #endif | |
957 | immediate_quit--; | |
9e0b60a8 | 958 | |
d318976c FN |
959 | if (got_eof) |
960 | return NULL; | |
9e0b60a8 | 961 | |
d318976c FN |
962 | #define SERVER_COMMAND_LENGTH 7 |
963 | server_command = | |
964 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 965 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 966 | if (server_command) |
9e0b60a8 | 967 | { |
d318976c FN |
968 | /* Note that we don't set `line'. Between this and the check in |
969 | dont_repeat, this insures that repeating will still do the | |
970 | right thing. */ | |
971 | *p = '\0'; | |
972 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 973 | } |
9e0b60a8 | 974 | |
d318976c FN |
975 | /* Do history expansion if that is wished. */ |
976 | if (history_expansion_p && instream == stdin | |
977 | && ISATTY (instream)) | |
978 | { | |
979 | char *history_value; | |
980 | int expanded; | |
9e0b60a8 | 981 | |
d318976c FN |
982 | *p = '\0'; /* Insert null now. */ |
983 | expanded = history_expand (linebuffer, &history_value); | |
984 | if (expanded) | |
985 | { | |
986 | /* Print the changes. */ | |
987 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 988 | |
d318976c FN |
989 | /* If there was an error, call this function again. */ |
990 | if (expanded < 0) | |
991 | { | |
b8c9b27d | 992 | xfree (history_value); |
d318976c FN |
993 | return command_line_input (prompt_arg, repeat, annotation_suffix); |
994 | } | |
995 | if (strlen (history_value) > linelength) | |
996 | { | |
997 | linelength = strlen (history_value) + 1; | |
998 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
999 | } | |
1000 | strcpy (linebuffer, history_value); | |
1001 | p = linebuffer + strlen (linebuffer); | |
d318976c | 1002 | } |
91d2803c | 1003 | xfree (history_value); |
d318976c | 1004 | } |
9e0b60a8 | 1005 | |
371d5dec MS |
1006 | /* If we just got an empty line, and that is supposed to repeat the |
1007 | previous command, return the value in the global buffer. */ | |
d318976c FN |
1008 | if (repeat && p == linebuffer) |
1009 | return line; | |
1010 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); | |
1011 | if (repeat && !*p1) | |
1012 | return line; | |
9e0b60a8 | 1013 | |
d318976c | 1014 | *p = 0; |
9e0b60a8 | 1015 | |
d318976c FN |
1016 | /* Add line to history if appropriate. */ |
1017 | if (instream == stdin | |
1018 | && ISATTY (stdin) && *linebuffer) | |
1019 | add_history (linebuffer); | |
9e0b60a8 | 1020 | |
d318976c FN |
1021 | /* Note: lines consisting solely of comments are added to the command |
1022 | history. This is useful when you type a command, and then | |
1023 | realize you don't want to execute it quite yet. You can comment | |
1024 | out the command and then later fetch it from the value history | |
1025 | and remove the '#'. The kill ring is probably better, but some | |
1026 | people are in the habit of commenting things out. */ | |
1027 | if (*p1 == '#') | |
371d5dec | 1028 | *p1 = '\0'; /* Found a comment. */ |
9e0b60a8 | 1029 | |
d318976c FN |
1030 | /* Save into global buffer if appropriate. */ |
1031 | if (repeat) | |
1032 | { | |
1033 | if (linelength > linesize) | |
1034 | { | |
1035 | line = xrealloc (line, linelength); | |
1036 | linesize = linelength; | |
1037 | } | |
1038 | strcpy (line, linebuffer); | |
1039 | return line; | |
1040 | } | |
9e0b60a8 | 1041 | |
d318976c | 1042 | return linebuffer; |
9e0b60a8 JM |
1043 | } |
1044 | \f | |
371d5dec | 1045 | /* Print the GDB banner. */ |
9e0b60a8 | 1046 | void |
fba45db2 | 1047 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1048 | { |
1049 | /* From GNU coding standards, first line is meant to be easy for a | |
1050 | program to parse, and is just canonical program name and version | |
371d5dec | 1051 | number, which starts after last space. */ |
9e0b60a8 | 1052 | |
c16158bc | 1053 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 | 1054 | |
371d5dec | 1055 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1056 | |
71ce852c | 1057 | fprintf_filtered (stream, "Copyright (C) 2011 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1058 | |
1059 | /* Following the copyright is a brief statement that the program is | |
1060 | free software, that users are free to copy and change it on | |
1061 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1062 | there is no warranty. */ |
9e0b60a8 JM |
1063 | |
1064 | fprintf_filtered (stream, "\ | |
b8533aec DJ |
1065 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n\ |
1066 | This is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1067 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1068 | and \"show warranty\" for details.\n"); |
9e0b60a8 | 1069 | |
371d5dec | 1070 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1071 | |
1072 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1073 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 JM |
1074 | { |
1075 | fprintf_filtered (stream, "--host=%s --target=%s", host_name, target_name); | |
1076 | } | |
1077 | else | |
1078 | { | |
1079 | fprintf_filtered (stream, "%s", host_name); | |
1080 | } | |
1081 | fprintf_filtered (stream, "\"."); | |
c16158bc JM |
1082 | |
1083 | if (REPORT_BUGS_TO[0]) | |
1084 | { | |
1085 | fprintf_filtered (stream, | |
1086 | _("\nFor bug reporting instructions, please see:\n")); | |
7949220d | 1087 | fprintf_filtered (stream, "%s.", REPORT_BUGS_TO); |
c16158bc | 1088 | } |
9e0b60a8 | 1089 | } |
9e0b60a8 JM |
1090 | \f |
1091 | /* get_prompt: access method for the GDB prompt string. */ | |
1092 | ||
9e0b60a8 | 1093 | char * |
fba45db2 | 1094 | get_prompt (void) |
9e0b60a8 | 1095 | { |
362646f5 | 1096 | return PROMPT (0); |
9e0b60a8 JM |
1097 | } |
1098 | ||
1099 | void | |
fba45db2 | 1100 | set_prompt (char *s) |
9e0b60a8 JM |
1101 | { |
1102 | /* ??rehrauer: I don't know why this fails, since it looks as though | |
1b36a34b | 1103 | assignments to prompt are wrapped in calls to xstrdup... |
c5aa993b | 1104 | if (prompt != NULL) |
371d5dec | 1105 | xfree (prompt); |
c5aa993b | 1106 | */ |
1b36a34b | 1107 | PROMPT (0) = xstrdup (s); |
9e0b60a8 | 1108 | } |
9e0b60a8 | 1109 | \f |
c5aa993b | 1110 | |
b0abbc58 | 1111 | struct qt_args |
9e0b60a8 | 1112 | { |
b0abbc58 JJ |
1113 | char *args; |
1114 | int from_tty; | |
1115 | }; | |
9e0b60a8 | 1116 | |
54a012c9 PA |
1117 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1118 | inferior, depending on how we originally gained control of it. */ | |
1119 | ||
1120 | static int | |
1121 | kill_or_detach (struct inferior *inf, void *args) | |
1122 | { | |
1123 | struct qt_args *qt = args; | |
1124 | struct thread_info *thread; | |
1125 | ||
6c95b8df PA |
1126 | if (inf->pid == 0) |
1127 | return 0; | |
1128 | ||
b8fa0bfa PA |
1129 | thread = any_thread_of_process (inf->pid); |
1130 | if (thread != NULL) | |
9e0b60a8 | 1131 | { |
54a012c9 | 1132 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1133 | |
1134 | /* Leave core files alone. */ | |
1135 | if (target_has_execution) | |
1136 | { | |
1137 | if (inf->attach_flag) | |
1138 | target_detach (qt->args, qt->from_tty); | |
1139 | else | |
1140 | target_kill (); | |
1141 | } | |
9e0b60a8 JM |
1142 | } |
1143 | ||
54a012c9 PA |
1144 | return 0; |
1145 | } | |
1146 | ||
b8fa0bfa PA |
1147 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1148 | will do to each inferior on a "quit". ARG points to a struct | |
1149 | ui_out where output is to be collected. */ | |
1150 | ||
1151 | static int | |
1152 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1153 | { | |
1154 | struct ui_file *stb = arg; | |
1155 | ||
6c95b8df PA |
1156 | if (inf->pid == 0) |
1157 | return 0; | |
1158 | ||
b8fa0bfa PA |
1159 | if (inf->attach_flag) |
1160 | fprintf_filtered (stb, | |
1161 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1162 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1163 | else | |
1164 | fprintf_filtered (stb, | |
1165 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1166 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1167 | ||
1168 | return 0; | |
1169 | } | |
1170 | ||
1171 | /* If necessary, make the user confirm that we should quit. Return | |
1172 | non-zero if we should quit, zero if we shouldn't. */ | |
1173 | ||
1174 | int | |
1175 | quit_confirm (void) | |
1176 | { | |
1177 | struct ui_file *stb; | |
1178 | struct cleanup *old_chain; | |
1179 | char *str; | |
1180 | int qr; | |
1181 | ||
1182 | /* Don't even ask if we're only debugging a core file inferior. */ | |
1183 | if (!have_live_inferiors ()) | |
1184 | return 1; | |
1185 | ||
1186 | /* Build the query string as a single string. */ | |
1187 | stb = mem_fileopen (); | |
1188 | old_chain = make_cleanup_ui_file_delete (stb); | |
1189 | ||
1190 | /* This is something of a hack. But there's no reliable way to see | |
1191 | if a GUI is running. The `use_windows' variable doesn't cut | |
1192 | it. */ | |
1193 | if (deprecated_init_ui_hook) | |
1194 | fprintf_filtered (stb, _("A debugging session is active.\n" | |
1195 | "Do you still want to close the debugger?")); | |
1196 | else | |
1197 | { | |
1198 | fprintf_filtered (stb, _("A debugging session is active.\n\n")); | |
1199 | iterate_over_inferiors (print_inferior_quit_action, stb); | |
1200 | fprintf_filtered (stb, _("\nQuit anyway? ")); | |
1201 | } | |
1202 | ||
1203 | str = ui_file_xstrdup (stb, NULL); | |
1204 | make_cleanup (xfree, str); | |
1205 | ||
1206 | qr = query ("%s", str); | |
1207 | do_cleanups (old_chain); | |
1208 | return qr; | |
1209 | } | |
1210 | ||
54a012c9 PA |
1211 | /* Helper routine for quit_force that requires error handling. */ |
1212 | ||
1213 | static int | |
1214 | quit_target (void *arg) | |
1215 | { | |
1216 | struct qt_args *qt = (struct qt_args *)arg; | |
1217 | ||
1218 | /* Kill or detach all inferiors. */ | |
c35b1492 | 1219 | iterate_over_inferiors (kill_or_detach, qt); |
54a012c9 | 1220 | |
aa76d38d PA |
1221 | /* Give all pushed targets a chance to do minimal cleanup, and pop |
1222 | them all out. */ | |
1223 | pop_all_targets (1); | |
9e0b60a8 JM |
1224 | |
1225 | /* Save the history information if it is appropriate to do so. */ | |
1226 | if (write_history_p && history_filename) | |
1227 | write_history (history_filename); | |
1228 | ||
371d5dec MS |
1229 | do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before |
1230 | exiting. */ | |
b0abbc58 JJ |
1231 | return 0; |
1232 | } | |
1233 | ||
1234 | /* Quit without asking for confirmation. */ | |
1235 | ||
1236 | void | |
1237 | quit_force (char *args, int from_tty) | |
1238 | { | |
1239 | int exit_code = 0; | |
365c70b1 | 1240 | struct qt_args qt; |
b0abbc58 JJ |
1241 | |
1242 | /* An optional expression may be used to cause gdb to terminate with the | |
371d5dec | 1243 | value of that expression. */ |
b0abbc58 JJ |
1244 | if (args) |
1245 | { | |
1246 | struct value *val = parse_and_eval (args); | |
1247 | ||
1248 | exit_code = (int) value_as_long (val); | |
1249 | } | |
4b0ad762 AS |
1250 | else if (return_child_result) |
1251 | exit_code = return_child_result_value; | |
b0abbc58 | 1252 | |
365c70b1 JJ |
1253 | qt.args = args; |
1254 | qt.from_tty = from_tty; | |
1255 | ||
b0abbc58 | 1256 | /* We want to handle any quit errors and exit regardless. */ |
365c70b1 | 1257 | catch_errors (quit_target, &qt, |
b0abbc58 JJ |
1258 | "Quitting: ", RETURN_MASK_ALL); |
1259 | ||
9e0b60a8 JM |
1260 | exit (exit_code); |
1261 | } | |
1262 | ||
910c5da8 JB |
1263 | /* If OFF, the debugger will run in non-interactive mode, which means |
1264 | that it will automatically select the default answer to all the | |
1265 | queries made to the user. If ON, gdb will wait for the user to | |
1266 | answer all queries. If AUTO, gdb will determine whether to run | |
1267 | in interactive mode or not depending on whether stdin is a terminal | |
1268 | or not. */ | |
1269 | static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
1270 | ||
1271 | /* Implement the "show interactive-mode" option. */ | |
1272 | ||
1273 | static void | |
1274 | show_interactive_mode (struct ui_file *file, int from_tty, | |
1275 | struct cmd_list_element *c, | |
1276 | const char *value) | |
1277 | { | |
1278 | if (interactive_mode == AUTO_BOOLEAN_AUTO) | |
1279 | fprintf_filtered (file, "\ | |
1280 | Debugger's interactive mode is %s (currently %s).\n", | |
1281 | value, input_from_terminal_p () ? "on" : "off"); | |
1282 | else | |
1283 | fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value); | |
1284 | } | |
1285 | ||
698ba934 DJ |
1286 | /* Returns whether GDB is running on a terminal and input is |
1287 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1288 | |
1289 | int | |
fba45db2 | 1290 | input_from_terminal_p (void) |
9e0b60a8 | 1291 | { |
910c5da8 JB |
1292 | if (interactive_mode != AUTO_BOOLEAN_AUTO) |
1293 | return interactive_mode == AUTO_BOOLEAN_TRUE; | |
1294 | ||
c63a1f86 JK |
1295 | if (batch_flag) |
1296 | return 0; | |
1297 | ||
698ba934 DJ |
1298 | if (gdb_has_a_terminal () && instream == stdin) |
1299 | return 1; | |
1300 | ||
1301 | /* If INSTREAM is unset, and we are not in a user command, we | |
1302 | must be in Insight. That's like having a terminal, for our | |
1303 | purposes. */ | |
1304 | if (instream == NULL && !in_user_command) | |
1305 | return 1; | |
1306 | ||
1307 | return 0; | |
9e0b60a8 JM |
1308 | } |
1309 | \f | |
9e0b60a8 | 1310 | static void |
fba45db2 | 1311 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1312 | { |
371d5dec MS |
1313 | *line = 0; /* Can't call dont_repeat here because we're |
1314 | not necessarily reading from stdin. */ | |
9e0b60a8 JM |
1315 | } |
1316 | \f | |
1317 | /* Functions to manipulate command line editing control variables. */ | |
1318 | ||
1319 | /* Number of commands to print in each call to show_commands. */ | |
1320 | #define Hist_print 10 | |
d318976c | 1321 | void |
fba45db2 | 1322 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1323 | { |
1324 | /* Index for history commands. Relative to history_base. */ | |
1325 | int offset; | |
1326 | ||
1327 | /* Number of the history entry which we are planning to display next. | |
1328 | Relative to history_base. */ | |
1329 | static int num = 0; | |
1330 | ||
1331 | /* The first command in the history which doesn't exist (i.e. one more | |
1332 | than the number of the last command). Relative to history_base. */ | |
1333 | int hist_len; | |
1334 | ||
9e0b60a8 JM |
1335 | /* Print out some of the commands from the command history. */ |
1336 | /* First determine the length of the history list. */ | |
1337 | hist_len = history_size; | |
1338 | for (offset = 0; offset < history_size; offset++) | |
1339 | { | |
1340 | if (!history_get (history_base + offset)) | |
1341 | { | |
1342 | hist_len = offset; | |
1343 | break; | |
1344 | } | |
1345 | } | |
1346 | ||
1347 | if (args) | |
1348 | { | |
1349 | if (args[0] == '+' && args[1] == '\0') | |
1350 | /* "info editing +" should print from the stored position. */ | |
1351 | ; | |
1352 | else | |
1353 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1354 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1355 | } |
1356 | /* "show commands" means print the last Hist_print commands. */ | |
1357 | else | |
1358 | { | |
1359 | num = hist_len - Hist_print; | |
1360 | } | |
1361 | ||
1362 | if (num < 0) | |
1363 | num = 0; | |
1364 | ||
1365 | /* If there are at least Hist_print commands, we want to display the last | |
1366 | Hist_print rather than, say, the last 6. */ | |
1367 | if (hist_len - num < Hist_print) | |
1368 | { | |
1369 | num = hist_len - Hist_print; | |
1370 | if (num < 0) | |
1371 | num = 0; | |
1372 | } | |
1373 | ||
1374 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1375 | { | |
1376 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1377 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1378 | } |
1379 | ||
1380 | /* The next command we want to display is the next one that we haven't | |
1381 | displayed yet. */ | |
1382 | num += Hist_print; | |
1383 | ||
1384 | /* If the user repeats this command with return, it should do what | |
1385 | "show commands +" does. This is unnecessary if arg is null, | |
1386 | because "show commands +" is not useful after "show commands". */ | |
1387 | if (from_tty && args) | |
1388 | { | |
1389 | args[0] = '+'; | |
1390 | args[1] = '\0'; | |
1391 | } | |
1392 | } | |
1393 | ||
1394 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1395 | static void |
fba45db2 | 1396 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1397 | { |
1398 | if (history_size == INT_MAX) | |
1399 | unstifle_history (); | |
1400 | else if (history_size >= 0) | |
1401 | stifle_history (history_size); | |
1402 | else | |
1403 | { | |
1404 | history_size = INT_MAX; | |
8a3fe4f8 | 1405 | error (_("History size must be non-negative")); |
9e0b60a8 JM |
1406 | } |
1407 | } | |
1408 | ||
d318976c | 1409 | void |
fba45db2 | 1410 | set_history (char *args, int from_tty) |
9e0b60a8 | 1411 | { |
a3f17187 | 1412 | printf_unfiltered (_("\"set history\" must be followed by the name of a history subcommand.\n")); |
9e0b60a8 JM |
1413 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1414 | } | |
1415 | ||
d318976c | 1416 | void |
fba45db2 | 1417 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1418 | { |
1419 | cmd_show_list (showhistlist, from_tty, ""); | |
1420 | } | |
1421 | ||
371d5dec | 1422 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1423 | |
1424 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1425 | void |
fba45db2 | 1426 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1427 | { |
1428 | char *cmdname = "verbose"; | |
1429 | struct cmd_list_element *showcmd; | |
1430 | ||
1431 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1432 | ||
1433 | if (info_verbose) | |
1434 | { | |
1435 | c->doc = "Set verbose printing of informational messages."; | |
1436 | showcmd->doc = "Show verbose printing of informational messages."; | |
1437 | } | |
1438 | else | |
1439 | { | |
1440 | c->doc = "Set verbosity."; | |
1441 | showcmd->doc = "Show verbosity."; | |
1442 | } | |
1443 | } | |
1444 | ||
9e0b60a8 | 1445 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1446 | have been read so that the user can change the history file via his |
1447 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1448 | overrides all of this. */ | |
9e0b60a8 JM |
1449 | |
1450 | void | |
fba45db2 | 1451 | init_history (void) |
9e0b60a8 JM |
1452 | { |
1453 | char *tmpenv; | |
1454 | ||
1455 | tmpenv = getenv ("HISTSIZE"); | |
1456 | if (tmpenv) | |
1457 | history_size = atoi (tmpenv); | |
1458 | else if (!history_size) | |
1459 | history_size = 256; | |
1460 | ||
1461 | stifle_history (history_size); | |
1462 | ||
1463 | tmpenv = getenv ("GDBHISTFILE"); | |
1464 | if (tmpenv) | |
1b36a34b | 1465 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1466 | else if (!history_filename) |
1467 | { | |
1468 | /* We include the current directory so that if the user changes | |
1469 | directories the file written will be the same as the one | |
1470 | that was read. */ | |
a0b3c4fd | 1471 | #ifdef __MSDOS__ |
eb2f494a | 1472 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1473 | history_filename = concat (current_directory, "/_gdb_history", |
1474 | (char *)NULL); | |
a0b3c4fd | 1475 | #else |
1754f103 MK |
1476 | history_filename = concat (current_directory, "/.gdb_history", |
1477 | (char *)NULL); | |
a0b3c4fd | 1478 | #endif |
c5aa993b | 1479 | } |
9e0b60a8 JM |
1480 | read_history (history_filename); |
1481 | } | |
1482 | ||
920d2a44 AC |
1483 | static void |
1484 | show_new_async_prompt (struct ui_file *file, int from_tty, | |
1485 | struct cmd_list_element *c, const char *value) | |
1486 | { | |
1487 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1488 | } | |
1489 | ||
1490 | static void | |
1491 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1492 | struct cmd_list_element *c, const char *value) | |
1493 | { | |
1494 | fprintf_filtered (file, _("\ | |
1495 | Editing of command lines as they are typed is %s.\n"), | |
1496 | value); | |
1497 | } | |
1498 | ||
1499 | static void | |
1500 | show_annotation_level (struct ui_file *file, int from_tty, | |
1501 | struct cmd_list_element *c, const char *value) | |
1502 | { | |
1503 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1504 | } | |
1505 | ||
1506 | static void | |
1507 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1508 | struct cmd_list_element *c, const char *value) | |
1509 | { | |
1510 | fprintf_filtered (file, _("\ | |
1511 | Notification of completion for asynchronous execution commands is %s.\n"), | |
1512 | value); | |
1513 | } | |
9e0b60a8 | 1514 | static void |
fba45db2 | 1515 | init_main (void) |
9e0b60a8 | 1516 | { |
362646f5 AC |
1517 | /* initialize the prompt stack to a simple "(gdb) " prompt or to |
1518 | whatever the DEFAULT_PROMPT is. */ | |
1519 | the_prompts.top = 0; | |
1520 | PREFIX (0) = ""; | |
1b36a34b | 1521 | PROMPT (0) = xstrdup (DEFAULT_PROMPT); |
362646f5 AC |
1522 | SUFFIX (0) = ""; |
1523 | /* Set things up for annotation_level > 1, if the user ever decides | |
1524 | to use it. */ | |
1525 | async_annotation_suffix = "prompt"; | |
1526 | /* Set the variable associated with the setshow prompt command. */ | |
1b36a34b | 1527 | new_async_prompt = xstrdup (PROMPT (0)); |
362646f5 AC |
1528 | |
1529 | /* If gdb was started with --annotate=2, this is equivalent to the | |
1530 | user entering the command 'set annotate 2' at the gdb prompt, so | |
1531 | we need to do extra processing. */ | |
1532 | if (annotation_level > 1) | |
1533 | set_async_annotation_level (NULL, 0, NULL); | |
9e0b60a8 JM |
1534 | |
1535 | /* Set the important stuff up for command editing. */ | |
1536 | command_editing_p = 1; | |
9e0b60a8 JM |
1537 | history_expansion_p = 0; |
1538 | write_history_p = 0; | |
1539 | ||
1540 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 1541 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
38017ce8 | 1542 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1543 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1544 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1545 | rl_readline_name = "gdb"; |
7cb3ec5e | 1546 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1547 | |
467d8519 TT |
1548 | /* The name for this defun comes from Bash, where it originated. |
1549 | 15 is Control-o, the same binding this function has in Bash. */ | |
1550 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1551 | ||
4d28ad1e AC |
1552 | add_setshow_string_cmd ("prompt", class_support, |
1553 | &new_async_prompt, _("\ | |
1554 | Set gdb's prompt"), _("\ | |
1555 | Show gdb's prompt"), NULL, | |
1556 | set_async_prompt, | |
920d2a44 | 1557 | show_new_async_prompt, |
4d28ad1e | 1558 | &setlist, &showlist); |
9e0b60a8 | 1559 | |
1bedd215 AC |
1560 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
1561 | Don't repeat this command.\n\ | |
9e0b60a8 | 1562 | Primarily used inside of user-defined commands that should not be repeated when\n\ |
1bedd215 | 1563 | hitting return.")); |
9e0b60a8 | 1564 | |
5bf193a2 AC |
1565 | add_setshow_boolean_cmd ("editing", class_support, |
1566 | &async_command_editing_p, _("\ | |
1567 | Set editing of command lines as they are typed."), _("\ | |
1568 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1569 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1570 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1571 | EMACS-like or VI-like commands like control-P or ESC."), |
1572 | set_async_editing_command, | |
920d2a44 | 1573 | show_async_command_editing_p, |
5bf193a2 AC |
1574 | &setlist, &showlist); |
1575 | ||
1576 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1577 | Set saving of the history record on exit."), _("\ | |
1578 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1579 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1580 | Without an argument, saving is enabled."), |
1581 | NULL, | |
920d2a44 | 1582 | show_write_history_p, |
5bf193a2 | 1583 | &sethistlist, &showhistlist); |
9e0b60a8 | 1584 | |
4d28ad1e AC |
1585 | add_setshow_integer_cmd ("size", no_class, &history_size, _("\ |
1586 | Set the size of the command history,"), _("\ | |
1587 | Show the size of the command history,"), _("\ | |
1588 | ie. the number of previous commands to keep a record of."), | |
1589 | set_history_size_command, | |
920d2a44 | 1590 | show_history_size, |
4d28ad1e AC |
1591 | &sethistlist, &showhistlist); |
1592 | ||
1593 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1594 | Set the filename in which to record the command history"), _("\ | |
1595 | Show the filename in which to record the command history"), _("\ | |
1596 | (the list of previous commands of which a record is kept)."), | |
1597 | NULL, | |
920d2a44 | 1598 | show_history_filename, |
4d28ad1e | 1599 | &sethistlist, &showhistlist); |
9e0b60a8 | 1600 | |
5bf193a2 AC |
1601 | add_setshow_boolean_cmd ("confirm", class_support, &caution, _("\ |
1602 | Set whether to confirm potentially dangerous operations."), _("\ | |
1603 | Show whether to confirm potentially dangerous operations."), NULL, | |
1604 | NULL, | |
920d2a44 | 1605 | show_caution, |
5bf193a2 | 1606 | &setlist, &showlist); |
9e0b60a8 | 1607 | |
85c07804 AC |
1608 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1609 | Set annotation_level."), _("\ | |
1610 | Show annotation_level."), _("\ | |
9e0b60a8 | 1611 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 AC |
1612 | 2 == output annotated suitably for use by programs that control GDB."), |
1613 | set_async_annotation_level, | |
920d2a44 | 1614 | show_annotation_level, |
85c07804 | 1615 | &setlist, &showlist); |
362646f5 | 1616 | |
5bf193a2 AC |
1617 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1618 | &exec_done_display_p, _("\ | |
1619 | Set notification of completion for asynchronous execution commands."), _("\ | |
1620 | Show notification of completion for asynchronous execution commands."), _("\ | |
1621 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1622 | NULL, | |
920d2a44 | 1623 | show_exec_done_display_p, |
5bf193a2 | 1624 | &setlist, &showlist); |
b14b1491 | 1625 | |
910c5da8 JB |
1626 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, |
1627 | &interactive_mode, _("\ | |
1628 | Set whether GDB should run in interactive mode or not"), _("\ | |
1629 | Show whether GDB runs in interactive mode"), _("\ | |
1630 | If on, run in interactive mode and wait for the user to answer\n\ | |
1631 | all queries. If off, run in non-interactive mode and automatically\n\ | |
1632 | assume the default answer to all queries. If auto (the default),\n\ | |
1633 | determine which mode to use based on the standard input settings"), | |
1634 | NULL, | |
1635 | show_interactive_mode, | |
1636 | &setlist, &showlist); | |
1637 | ||
b14b1491 TT |
1638 | add_setshow_filename_cmd ("data-directory", class_maintenance, |
1639 | &gdb_datadir, _("Set GDB's data directory."), | |
1640 | _("Show GDB's data directory."), | |
1641 | _("\ | |
1642 | When set, GDB uses the specified path to search for data files."), | |
1643 | NULL, NULL, | |
1644 | &setlist, | |
1645 | &showlist); | |
9e0b60a8 | 1646 | } |
64cdedad EZ |
1647 | |
1648 | void | |
1649 | gdb_init (char *argv0) | |
1650 | { | |
1651 | if (pre_init_ui_hook) | |
1652 | pre_init_ui_hook (); | |
1653 | ||
371d5dec | 1654 | /* Run the init function of each source file. */ |
64cdedad | 1655 | |
64cdedad EZ |
1656 | #ifdef __MSDOS__ |
1657 | /* Make sure we return to the original directory upon exit, come | |
1658 | what may, since the OS doesn't do that for us. */ | |
1659 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1660 | #endif | |
1661 | ||
371d5dec MS |
1662 | init_cmd_lists (); /* This needs to be done first. */ |
1663 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
1664 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 DE |
1665 | |
1666 | /* Here is where we call all the _initialize_foo routines. */ | |
64cdedad | 1667 | initialize_all_files (); |
9dea9163 | 1668 | |
6c95b8df PA |
1669 | /* This creates the current_program_space. Do this after all the |
1670 | _initialize_foo routines have had a chance to install their | |
1671 | per-sspace data keys. Also do this before | |
1672 | initialize_current_architecture is called, because it accesses | |
1673 | exec_bfd of the current program space. */ | |
1674 | initialize_progspace (); | |
1675 | initialize_inferiors (); | |
64cdedad EZ |
1676 | initialize_current_architecture (); |
1677 | init_cli_cmds(); | |
371d5dec | 1678 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 1679 | |
0ea3f30e DJ |
1680 | initialize_stdin_serial (); |
1681 | ||
362646f5 | 1682 | async_init_signals (); |
64cdedad | 1683 | |
371d5dec MS |
1684 | /* We need a default language for parsing expressions, so simple |
1685 | things like "set width 0" won't fail if no language is explicitly | |
1686 | set in a config file or implicitly set by reading an executable | |
1687 | during startup. */ | |
64cdedad | 1688 | set_language (language_c); |
371d5dec | 1689 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 1690 | |
9a4105ab AC |
1691 | /* Allow another UI to initialize. If the UI fails to initialize, |
1692 | and it wants GDB to revert to the CLI, it should clear | |
1693 | deprecated_init_ui_hook. */ | |
1694 | if (deprecated_init_ui_hook) | |
1695 | deprecated_init_ui_hook (argv0); | |
9dea9163 DE |
1696 | |
1697 | #ifdef HAVE_PYTHON | |
371d5dec MS |
1698 | /* Python initialization can require various commands to be |
1699 | installed. For example "info pretty-printer" needs the "info" | |
1700 | prefix to be installed. Keep things simple and just do final | |
1701 | python initialization here. */ | |
9dea9163 DE |
1702 | finish_python_initialization (); |
1703 | #endif | |
64cdedad | 1704 | } |