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 | { | |
3e43a32a MS |
105 | fprintf_filtered (file, _("Whether to confirm potentially " |
106 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
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 | ||
dc7eb48e PA |
140 | char *saved_command_line; |
141 | int saved_command_line_size = 100; | |
c906108c SS |
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 | |
c378eb4e | 253 | /* Tell the GUI someone changed the register REGNO. -1 means |
c906108c | 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 | 284 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 285 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 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 | |
7a9dd1b2 | 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 | 299 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 300 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 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 | 305 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 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 | ||
028d0ed5 | 342 | struct cleanup * |
4e5d721f DE |
343 | prepare_execute_command (void) |
344 | { | |
028d0ed5 TJB |
345 | struct value *mark; |
346 | struct cleanup *cleanup; | |
347 | ||
348 | mark = value_mark (); | |
349 | cleanup = make_cleanup_value_free_to_mark (mark); | |
4e5d721f | 350 | |
371d5dec MS |
351 | /* With multiple threads running while the one we're examining is |
352 | stopped, the dcache can get stale without us being able to detect | |
353 | it. For the duration of the command, though, use the dcache to | |
354 | help things like backtrace. */ | |
4e5d721f DE |
355 | if (non_stop) |
356 | target_dcache_invalidate (); | |
028d0ed5 TJB |
357 | |
358 | return cleanup; | |
4e5d721f DE |
359 | } |
360 | ||
648bf667 | 361 | /* Execute the line P as a command, in the current user context. |
d318976c | 362 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 363 | |
d318976c FN |
364 | void |
365 | execute_command (char *p, int from_tty) | |
c906108c | 366 | { |
028d0ed5 | 367 | struct cleanup *cleanup; |
52f0bd74 AC |
368 | struct cmd_list_element *c; |
369 | enum language flang; | |
d318976c FN |
370 | static int warned = 0; |
371 | char *line; | |
4e5d721f | 372 | |
028d0ed5 | 373 | cleanup = prepare_execute_command (); |
c906108c | 374 | |
d318976c FN |
375 | /* Force cleanup of any alloca areas if using C alloca instead of |
376 | a builtin alloca. */ | |
377 | alloca (0); | |
c906108c | 378 | |
d318976c FN |
379 | /* This can happen when command_line_input hits end of file. */ |
380 | if (p == NULL) | |
5fe41fbf TT |
381 | { |
382 | do_cleanups (cleanup); | |
383 | return; | |
384 | } | |
c906108c | 385 | |
49d03eab | 386 | target_log_command (p); |
8b93c638 | 387 | |
d318976c FN |
388 | while (*p == ' ' || *p == '\t') |
389 | p++; | |
390 | if (*p) | |
8b93c638 | 391 | { |
d318976c FN |
392 | char *arg; |
393 | line = p; | |
8b93c638 | 394 | |
16026cd7 AS |
395 | /* If trace-commands is set then this will print this command. */ |
396 | print_command_trace (p); | |
397 | ||
d318976c | 398 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 399 | |
d318976c FN |
400 | /* Pass null arg rather than an empty one. */ |
401 | arg = *p ? p : 0; | |
8b93c638 | 402 | |
9f60d481 AC |
403 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
404 | while the is_complete_command(cfunc) test is just plain | |
405 | bogus. They should both be replaced by a test of the form | |
406 | c->strip_trailing_white_space_p. */ | |
407 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
408 | can't be replaced with func. This is because it is the | |
409 | cfunc, and not the func, that has the value that the | |
410 | is_complete_command hack is testing for. */ | |
411 | /* Clear off trailing whitespace, except for set and complete | |
412 | command. */ | |
d318976c FN |
413 | if (arg |
414 | && c->type != set_cmd | |
bbaca940 | 415 | && !is_complete_command (c)) |
8b93c638 | 416 | { |
d318976c FN |
417 | p = arg + strlen (arg) - 1; |
418 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
419 | p--; | |
420 | *(p + 1) = '\0'; | |
8b93c638 JM |
421 | } |
422 | ||
371d5dec | 423 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 424 | execute_cmd_pre_hook (c); |
c906108c | 425 | |
d318976c FN |
426 | if (c->flags & DEPRECATED_WARN_USER) |
427 | deprecated_cmd_warning (&line); | |
c906108c | 428 | |
d318976c FN |
429 | if (c->class == class_user) |
430 | execute_user_command (c, arg); | |
431 | else if (c->type == set_cmd || c->type == show_cmd) | |
432 | do_setshow_command (arg, from_tty & caution, c); | |
f436dd25 | 433 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 434 | error (_("That is not a command, just a help topic.")); |
9a4105ab AC |
435 | else if (deprecated_call_command_hook) |
436 | deprecated_call_command_hook (c, arg, from_tty & caution); | |
d318976c | 437 | else |
f436dd25 | 438 | cmd_func (c, arg, from_tty & caution); |
d318976c | 439 | |
371d5dec | 440 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 441 | execute_cmd_post_hook (c); |
c906108c | 442 | |
c906108c SS |
443 | } |
444 | ||
52efb61a DJ |
445 | /* Tell the user if the language has changed (except first time). |
446 | First make sure that a new frame has been selected, in case this | |
447 | command or the hooks changed the program state. */ | |
448 | deprecated_safe_get_selected_frame (); | |
d318976c | 449 | if (current_language != expected_language) |
c906108c | 450 | { |
52efb61a | 451 | if (language_mode == language_mode_auto && info_verbose) |
c906108c | 452 | { |
d318976c | 453 | language_info (1); /* Print what changed. */ |
c906108c | 454 | } |
d318976c | 455 | warned = 0; |
c906108c SS |
456 | } |
457 | ||
d318976c FN |
458 | /* Warn the user if the working language does not match the |
459 | language of the current frame. Only warn the user if we are | |
371d5dec | 460 | actually running the program, i.e. there is a stack. */ |
d318976c FN |
461 | /* FIXME: This should be cacheing the frame and only running when |
462 | the frame changes. */ | |
463 | ||
d729566a | 464 | if (has_stack_frames ()) |
c906108c | 465 | { |
d318976c FN |
466 | flang = get_frame_language (); |
467 | if (!warned | |
468 | && flang != language_unknown | |
469 | && flang != current_language->la_language) | |
c906108c | 470 | { |
d318976c FN |
471 | printf_filtered ("%s\n", lang_frame_mismatch_warn); |
472 | warned = 1; | |
c906108c | 473 | } |
c906108c | 474 | } |
028d0ed5 TJB |
475 | |
476 | do_cleanups (cleanup); | |
c906108c SS |
477 | } |
478 | ||
5da1313b JK |
479 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
480 | returned string, do not display it to the screen. BATCH_FLAG will be | |
481 | temporarily set to true. */ | |
482 | ||
483 | char * | |
484 | execute_command_to_string (char *p, int from_tty) | |
485 | { | |
486 | struct ui_file *str_file; | |
487 | struct cleanup *cleanup; | |
488 | char *retval; | |
489 | ||
490 | /* GDB_STDOUT should be better already restored during these | |
491 | restoration callbacks. */ | |
492 | cleanup = set_batch_flag_and_make_cleanup_restore_page_info (); | |
493 | ||
494 | str_file = mem_fileopen (); | |
495 | ||
8d4d924b | 496 | make_cleanup_ui_file_delete (str_file); |
5da1313b JK |
497 | make_cleanup_restore_ui_file (&gdb_stdout); |
498 | make_cleanup_restore_ui_file (&gdb_stderr); | |
8d4d924b JK |
499 | make_cleanup_restore_ui_file (&gdb_stdlog); |
500 | make_cleanup_restore_ui_file (&gdb_stdtarg); | |
501 | make_cleanup_restore_ui_file (&gdb_stdtargerr); | |
502 | ||
503 | if (ui_out_redirect (uiout, str_file) < 0) | |
504 | warning (_("Current output protocol does not support redirection")); | |
505 | else | |
506 | make_cleanup_ui_out_redirect_pop (uiout); | |
5da1313b JK |
507 | |
508 | gdb_stdout = str_file; | |
509 | gdb_stderr = str_file; | |
8d4d924b JK |
510 | gdb_stdlog = str_file; |
511 | gdb_stdtarg = str_file; | |
512 | gdb_stdtargerr = str_file; | |
5da1313b JK |
513 | |
514 | execute_command (p, from_tty); | |
515 | ||
516 | retval = ui_file_xstrdup (str_file, NULL); | |
517 | ||
518 | do_cleanups (cleanup); | |
519 | ||
520 | return retval; | |
521 | } | |
522 | ||
d318976c FN |
523 | /* Read commands from `instream' and execute them |
524 | until end of file or error reading instream. */ | |
c906108c | 525 | |
d318976c FN |
526 | void |
527 | command_loop (void) | |
c906108c | 528 | { |
d318976c FN |
529 | struct cleanup *old_chain; |
530 | char *command; | |
531 | int stdin_is_tty = ISATTY (stdin); | |
c5aa993b | 532 | |
d318976c FN |
533 | while (instream && !feof (instream)) |
534 | { | |
d318976c FN |
535 | if (window_hook && instream == stdin) |
536 | (*window_hook) (instream, get_prompt ()); | |
c906108c | 537 | |
d318976c FN |
538 | quit_flag = 0; |
539 | if (instream == stdin && stdin_is_tty) | |
540 | reinitialize_more_filter (); | |
541 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 542 | |
c378eb4e | 543 | /* Get a command-line. This calls the readline package. */ |
d318976c FN |
544 | command = command_line_input (instream == stdin ? |
545 | get_prompt () : (char *) NULL, | |
546 | instream == stdin, "prompt"); | |
d318976c | 547 | if (command == 0) |
5fe41fbf TT |
548 | { |
549 | do_cleanups (old_chain); | |
550 | return; | |
551 | } | |
c906108c | 552 | |
0f3bb72e | 553 | make_command_stats_cleanup (1); |
9e0b60a8 | 554 | |
d318976c | 555 | execute_command (command, instream == stdin); |
347bddb7 PA |
556 | |
557 | /* Do any commands attached to breakpoint we are stopped at. */ | |
558 | bpstat_do_actions (); | |
559 | ||
d318976c | 560 | do_cleanups (old_chain); |
9e0b60a8 | 561 | } |
9e0b60a8 | 562 | } |
d318976c | 563 | \f |
47a80e90 TT |
564 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
565 | set via prevent_dont_repeat. */ | |
566 | ||
567 | static int suppress_dont_repeat = 0; | |
568 | ||
d318976c | 569 | /* Commands call this if they do not want to be repeated by null lines. */ |
9e0b60a8 | 570 | |
d318976c FN |
571 | void |
572 | dont_repeat (void) | |
9e0b60a8 | 573 | { |
47a80e90 | 574 | if (suppress_dont_repeat || server_command) |
d318976c | 575 | return; |
9e0b60a8 | 576 | |
d318976c | 577 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
578 | thing read from stdin in line and don't want to delete it. Null |
579 | lines won't repeat here in any case. */ | |
d318976c | 580 | if (instream == stdin) |
dc7eb48e | 581 | *saved_command_line = 0; |
9e0b60a8 | 582 | } |
47a80e90 TT |
583 | |
584 | /* Prevent dont_repeat from working, and return a cleanup that | |
585 | restores the previous state. */ | |
586 | ||
587 | struct cleanup * | |
588 | prevent_dont_repeat (void) | |
589 | { | |
590 | struct cleanup *result = make_cleanup_restore_integer (&suppress_dont_repeat); | |
591 | ||
592 | suppress_dont_repeat = 1; | |
593 | return result; | |
594 | } | |
595 | ||
d318976c FN |
596 | \f |
597 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 598 | |
d318976c FN |
599 | It prints PROMPT_ARG once at the start. |
600 | Action is compatible with "readline", e.g. space for the result is | |
601 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 602 | |
d318976c FN |
603 | A NULL return means end of file. */ |
604 | char * | |
605 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 606 | { |
d318976c FN |
607 | int c; |
608 | char *result; | |
609 | int input_index = 0; | |
610 | int result_size = 80; | |
9e0b60a8 | 611 | |
d318976c | 612 | if (prompt_arg) |
9e0b60a8 | 613 | { |
d318976c FN |
614 | /* Don't use a _filtered function here. It causes the assumed |
615 | character position to be off, since the newline we read from | |
616 | the user is not accounted for. */ | |
617 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
618 | gdb_flush (gdb_stdout); |
619 | } | |
620 | ||
d318976c | 621 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
622 | |
623 | while (1) | |
624 | { | |
d318976c FN |
625 | /* Read from stdin if we are executing a user defined command. |
626 | This is the right thing for prompt_for_continue, at least. */ | |
627 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 628 | |
d318976c | 629 | if (c == EOF) |
9e0b60a8 | 630 | { |
d318976c FN |
631 | if (input_index > 0) |
632 | /* The last line does not end with a newline. Return it, and | |
633 | if we are called again fgetc will still return EOF and | |
634 | we'll return NULL then. */ | |
9e0b60a8 | 635 | break; |
b8c9b27d | 636 | xfree (result); |
d318976c | 637 | return NULL; |
9e0b60a8 | 638 | } |
c5aa993b | 639 | |
d318976c | 640 | if (c == '\n') |
9e0b60a8 | 641 | { |
d318976c FN |
642 | if (input_index > 0 && result[input_index - 1] == '\r') |
643 | input_index--; | |
644 | break; | |
9e0b60a8 | 645 | } |
9e0b60a8 | 646 | |
d318976c FN |
647 | result[input_index++] = c; |
648 | while (input_index >= result_size) | |
9e0b60a8 | 649 | { |
d318976c FN |
650 | result_size *= 2; |
651 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 652 | } |
9e0b60a8 JM |
653 | } |
654 | ||
d318976c FN |
655 | result[input_index++] = '\0'; |
656 | return result; | |
9e0b60a8 JM |
657 | } |
658 | ||
d318976c FN |
659 | /* Variables which control command line editing and history |
660 | substitution. These variables are given default values at the end | |
661 | of this file. */ | |
662 | static int command_editing_p; | |
920d2a44 | 663 | |
d318976c FN |
664 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
665 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 666 | event-top.c into this file, top.c. */ |
920d2a44 | 667 | |
d318976c | 668 | /* static */ int history_expansion_p; |
920d2a44 | 669 | |
d318976c | 670 | static int write_history_p; |
920d2a44 AC |
671 | static void |
672 | show_write_history_p (struct ui_file *file, int from_tty, | |
673 | struct cmd_list_element *c, const char *value) | |
674 | { | |
675 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
676 | value); | |
677 | } | |
678 | ||
d318976c | 679 | static int history_size; |
920d2a44 AC |
680 | static void |
681 | show_history_size (struct ui_file *file, int from_tty, | |
682 | struct cmd_list_element *c, const char *value) | |
683 | { | |
684 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
685 | value); | |
686 | } | |
687 | ||
d318976c | 688 | static char *history_filename; |
920d2a44 AC |
689 | static void |
690 | show_history_filename (struct ui_file *file, int from_tty, | |
691 | struct cmd_list_element *c, const char *value) | |
692 | { | |
3e43a32a MS |
693 | fprintf_filtered (file, _("The filename in which to record " |
694 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
695 | value); |
696 | } | |
9e0b60a8 | 697 | |
b4f5539f | 698 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 699 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
700 | a single gdb invocation. At the ordinary top-level prompt we might |
701 | be using the async readline. That means we can't use | |
702 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
703 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
704 | `define'), gdb wants a synchronous response. |
705 | ||
706 | We used to call readline() directly, running it in synchronous | |
707 | mode. But mixing modes this way is not supported, and as of | |
708 | readline 5.x it no longer works; the arrow keys come unbound during | |
709 | the synchronous call. So we make a nested call into the event | |
710 | loop. That's what gdb_readline_wrapper is for. */ | |
711 | ||
712 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
713 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
714 | the user types Control-D for EOF. */ | |
715 | static int gdb_readline_wrapper_done; | |
716 | ||
717 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
718 | is seen. */ | |
719 | static char *gdb_readline_wrapper_result; | |
720 | ||
721 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
722 | to be called after the newline is processed (which will redisplay | |
723 | the prompt). But in gdb_readline_wrapper we will not get a new | |
724 | prompt until the next call, or until we return to the event loop. | |
725 | So we disable this hook around the newline and restore it before we | |
726 | return. */ | |
727 | static void (*saved_after_char_processing_hook) (void); | |
728 | ||
729 | /* This function is called when readline has seen a complete line of | |
730 | text. */ | |
731 | ||
732 | static void | |
733 | gdb_readline_wrapper_line (char *line) | |
734 | { | |
735 | gdb_assert (!gdb_readline_wrapper_done); | |
736 | gdb_readline_wrapper_result = line; | |
737 | gdb_readline_wrapper_done = 1; | |
738 | ||
739 | /* Prevent operate-and-get-next from acting too early. */ | |
740 | saved_after_char_processing_hook = after_char_processing_hook; | |
741 | after_char_processing_hook = NULL; | |
1b05479a DJ |
742 | |
743 | /* Prevent parts of the prompt from being redisplayed if annotations | |
744 | are enabled, and readline's state getting out of sync. */ | |
745 | if (async_command_editing_p) | |
746 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
747 | } |
748 | ||
749 | struct gdb_readline_wrapper_cleanup | |
750 | { | |
751 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
752 | int already_prompted_orig; |
753 | }; | |
754 | ||
755 | static void | |
756 | gdb_readline_wrapper_cleanup (void *arg) | |
757 | { | |
758 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
759 | ||
2e03ee74 | 760 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
761 | |
762 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
763 | input_handler = cleanup->handler_orig; | |
764 | gdb_readline_wrapper_result = NULL; | |
765 | gdb_readline_wrapper_done = 0; | |
766 | ||
767 | after_char_processing_hook = saved_after_char_processing_hook; | |
768 | saved_after_char_processing_hook = NULL; | |
769 | ||
770 | xfree (cleanup); | |
771 | } | |
772 | ||
b4f5539f TT |
773 | char * |
774 | gdb_readline_wrapper (char *prompt) | |
775 | { | |
2e03ee74 DJ |
776 | struct cleanup *back_to; |
777 | struct gdb_readline_wrapper_cleanup *cleanup; | |
778 | char *retval; | |
779 | ||
780 | cleanup = xmalloc (sizeof (*cleanup)); | |
781 | cleanup->handler_orig = input_handler; | |
782 | input_handler = gdb_readline_wrapper_line; | |
783 | ||
2e03ee74 DJ |
784 | cleanup->already_prompted_orig = rl_already_prompted; |
785 | ||
786 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
787 | ||
788 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 789 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
790 | rl_already_prompted = 1; |
791 | ||
362646f5 | 792 | if (after_char_processing_hook) |
2e03ee74 DJ |
793 | (*after_char_processing_hook) (); |
794 | gdb_assert (after_char_processing_hook == NULL); | |
795 | ||
796 | /* gdb_do_one_event argument is unused. */ | |
797 | while (gdb_do_one_event (NULL) >= 0) | |
798 | if (gdb_readline_wrapper_done) | |
799 | break; | |
b4f5539f | 800 | |
2e03ee74 DJ |
801 | retval = gdb_readline_wrapper_result; |
802 | do_cleanups (back_to); | |
803 | return retval; | |
b4f5539f TT |
804 | } |
805 | ||
9e0b60a8 | 806 | \f |
467d8519 TT |
807 | /* The current saved history number from operate-and-get-next. |
808 | This is -1 if not valid. */ | |
809 | static int operate_saved_history = -1; | |
810 | ||
811 | /* This is put on the appropriate hook and helps operate-and-get-next | |
812 | do its work. */ | |
b9362cc7 | 813 | static void |
5ae5f592 | 814 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
815 | { |
816 | int delta = where_history () - operate_saved_history; | |
5d502164 | 817 | |
467d8519 TT |
818 | /* The `key' argument to rl_get_previous_history is ignored. */ |
819 | rl_get_previous_history (delta, 0); | |
820 | operate_saved_history = -1; | |
821 | ||
822 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 823 | rl_redisplay (); |
467d8519 TT |
824 | |
825 | after_char_processing_hook = NULL; | |
826 | rl_pre_input_hook = NULL; | |
827 | } | |
828 | ||
829 | /* This is a gdb-local readline command handler. It accepts the | |
830 | current command line (like RET does) and, if this command was taken | |
831 | from the history, arranges for the next command in the history to | |
832 | appear on the command line when the prompt returns. | |
833 | We ignore the arguments. */ | |
834 | static int | |
835 | gdb_rl_operate_and_get_next (int count, int key) | |
836 | { | |
b5686e99 MK |
837 | int where; |
838 | ||
362646f5 AC |
839 | /* Use the async hook. */ |
840 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 841 | |
b5686e99 MK |
842 | /* Find the current line, and find the next line to use. */ |
843 | where = where_history(); | |
844 | ||
845 | /* FIXME: kettenis/20020817: max_input_history is renamed into | |
846 | history_max_entries in readline-4.2. When we do a new readline | |
847 | import, we should probably change it here too, even though | |
848 | readline maintains backwards compatibility for now by still | |
849 | defining max_input_history. */ | |
850 | if ((history_is_stifled () && (history_length >= max_input_history)) || | |
851 | (where >= history_length - 1)) | |
852 | operate_saved_history = where; | |
853 | else | |
854 | operate_saved_history = where + 1; | |
855 | ||
467d8519 TT |
856 | return rl_newline (1, key); |
857 | } | |
858 | \f | |
d318976c FN |
859 | /* Read one line from the command input stream `instream' |
860 | into the local static buffer `linebuffer' (whose current length | |
861 | is `linelength'). | |
862 | The buffer is made bigger as necessary. | |
863 | Returns the address of the start of the line. | |
9e0b60a8 | 864 | |
d318976c | 865 | NULL is returned for end of file. |
9e0b60a8 | 866 | |
d318976c FN |
867 | *If* the instream == stdin & stdin is a terminal, the line read |
868 | is copied into the file line saver (global var char *line, | |
869 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 870 | |
d318976c FN |
871 | This routine either uses fancy command line editing or |
872 | simple input as the user has requested. */ | |
10689f25 | 873 | |
d318976c FN |
874 | char * |
875 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 876 | { |
d318976c FN |
877 | static char *linebuffer = 0; |
878 | static unsigned linelength = 0; | |
52f0bd74 | 879 | char *p; |
d318976c FN |
880 | char *p1; |
881 | char *rl; | |
882 | char *local_prompt = prompt_arg; | |
883 | char *nline; | |
884 | char got_eof = 0; | |
885 | ||
886 | /* The annotation suffix must be non-NULL. */ | |
887 | if (annotation_suffix == NULL) | |
888 | annotation_suffix = ""; | |
9e0b60a8 | 889 | |
d318976c FN |
890 | if (annotation_level > 1 && instream == stdin) |
891 | { | |
892 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
893 | + strlen (annotation_suffix) + 40); | |
894 | if (prompt_arg == NULL) | |
895 | local_prompt[0] = '\0'; | |
896 | else | |
897 | strcpy (local_prompt, prompt_arg); | |
898 | strcat (local_prompt, "\n\032\032"); | |
899 | strcat (local_prompt, annotation_suffix); | |
900 | strcat (local_prompt, "\n"); | |
901 | } | |
9e0b60a8 | 902 | |
d318976c | 903 | if (linebuffer == 0) |
9e0b60a8 | 904 | { |
d318976c FN |
905 | linelength = 80; |
906 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 907 | } |
9e0b60a8 | 908 | |
d318976c | 909 | p = linebuffer; |
9e0b60a8 | 910 | |
d318976c FN |
911 | /* Control-C quits instantly if typed while in this loop |
912 | since it should not wait until the user types a newline. */ | |
913 | immediate_quit++; | |
914 | #ifdef STOP_SIGNAL | |
915 | if (job_control) | |
362646f5 | 916 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
917 | #endif |
918 | ||
919 | while (1) | |
9e0b60a8 | 920 | { |
371d5dec MS |
921 | /* Make sure that all output has been output. Some machines may |
922 | let you get away with leaving out some of the gdb_flush, but | |
923 | not all. */ | |
d318976c FN |
924 | wrap_here (""); |
925 | gdb_flush (gdb_stdout); | |
926 | gdb_flush (gdb_stderr); | |
927 | ||
928 | if (source_file_name != NULL) | |
637537d0 | 929 | ++source_line_number; |
d318976c FN |
930 | |
931 | if (annotation_level > 1 && instream == stdin) | |
932 | { | |
306d9ac5 DC |
933 | puts_unfiltered ("\n\032\032pre-"); |
934 | puts_unfiltered (annotation_suffix); | |
935 | puts_unfiltered ("\n"); | |
d318976c FN |
936 | } |
937 | ||
938 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 939 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 940 | { |
9a4105ab | 941 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 942 | } |
698ba934 | 943 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 944 | { |
b4f5539f | 945 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 946 | } |
9e0b60a8 | 947 | else |
d318976c FN |
948 | { |
949 | rl = gdb_readline (local_prompt); | |
950 | } | |
9e0b60a8 | 951 | |
d318976c FN |
952 | if (annotation_level > 1 && instream == stdin) |
953 | { | |
306d9ac5 DC |
954 | puts_unfiltered ("\n\032\032post-"); |
955 | puts_unfiltered (annotation_suffix); | |
956 | puts_unfiltered ("\n"); | |
d318976c | 957 | } |
9e0b60a8 | 958 | |
d318976c | 959 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 960 | { |
d318976c FN |
961 | got_eof = 1; |
962 | break; | |
9e0b60a8 | 963 | } |
d318976c FN |
964 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
965 | { | |
966 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
967 | nline = (char *) xrealloc (linebuffer, linelength); | |
968 | p += nline - linebuffer; | |
969 | linebuffer = nline; | |
970 | } | |
971 | p1 = rl; | |
972 | /* Copy line. Don't copy null at end. (Leaves line alone | |
371d5dec | 973 | if this was just a newline). */ |
d318976c FN |
974 | while (*p1) |
975 | *p++ = *p1++; | |
9e0b60a8 | 976 | |
b8c9b27d | 977 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 978 | |
d318976c FN |
979 | if (p == linebuffer || *(p - 1) != '\\') |
980 | break; | |
9e0b60a8 | 981 | |
d318976c FN |
982 | p--; /* Put on top of '\'. */ |
983 | local_prompt = (char *) 0; | |
984 | } | |
9e0b60a8 | 985 | |
d318976c FN |
986 | #ifdef STOP_SIGNAL |
987 | if (job_control) | |
988 | signal (STOP_SIGNAL, SIG_DFL); | |
989 | #endif | |
990 | immediate_quit--; | |
9e0b60a8 | 991 | |
d318976c FN |
992 | if (got_eof) |
993 | return NULL; | |
9e0b60a8 | 994 | |
d318976c FN |
995 | #define SERVER_COMMAND_LENGTH 7 |
996 | server_command = | |
997 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 998 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 999 | if (server_command) |
9e0b60a8 | 1000 | { |
d318976c FN |
1001 | /* Note that we don't set `line'. Between this and the check in |
1002 | dont_repeat, this insures that repeating will still do the | |
1003 | right thing. */ | |
1004 | *p = '\0'; | |
1005 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1006 | } |
9e0b60a8 | 1007 | |
d318976c FN |
1008 | /* Do history expansion if that is wished. */ |
1009 | if (history_expansion_p && instream == stdin | |
1010 | && ISATTY (instream)) | |
1011 | { | |
1012 | char *history_value; | |
1013 | int expanded; | |
9e0b60a8 | 1014 | |
d318976c FN |
1015 | *p = '\0'; /* Insert null now. */ |
1016 | expanded = history_expand (linebuffer, &history_value); | |
1017 | if (expanded) | |
1018 | { | |
1019 | /* Print the changes. */ | |
1020 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1021 | |
d318976c FN |
1022 | /* If there was an error, call this function again. */ |
1023 | if (expanded < 0) | |
1024 | { | |
b8c9b27d | 1025 | xfree (history_value); |
3e43a32a MS |
1026 | return command_line_input (prompt_arg, repeat, |
1027 | annotation_suffix); | |
d318976c FN |
1028 | } |
1029 | if (strlen (history_value) > linelength) | |
1030 | { | |
1031 | linelength = strlen (history_value) + 1; | |
1032 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1033 | } | |
1034 | strcpy (linebuffer, history_value); | |
1035 | p = linebuffer + strlen (linebuffer); | |
d318976c | 1036 | } |
91d2803c | 1037 | xfree (history_value); |
d318976c | 1038 | } |
9e0b60a8 | 1039 | |
371d5dec MS |
1040 | /* If we just got an empty line, and that is supposed to repeat the |
1041 | previous command, return the value in the global buffer. */ | |
d318976c | 1042 | if (repeat && p == linebuffer) |
dc7eb48e | 1043 | return saved_command_line; |
d318976c FN |
1044 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); |
1045 | if (repeat && !*p1) | |
dc7eb48e | 1046 | return saved_command_line; |
9e0b60a8 | 1047 | |
d318976c | 1048 | *p = 0; |
9e0b60a8 | 1049 | |
d318976c FN |
1050 | /* Add line to history if appropriate. */ |
1051 | if (instream == stdin | |
1052 | && ISATTY (stdin) && *linebuffer) | |
1053 | add_history (linebuffer); | |
9e0b60a8 | 1054 | |
d318976c FN |
1055 | /* Note: lines consisting solely of comments are added to the command |
1056 | history. This is useful when you type a command, and then | |
1057 | realize you don't want to execute it quite yet. You can comment | |
1058 | out the command and then later fetch it from the value history | |
1059 | and remove the '#'. The kill ring is probably better, but some | |
1060 | people are in the habit of commenting things out. */ | |
1061 | if (*p1 == '#') | |
371d5dec | 1062 | *p1 = '\0'; /* Found a comment. */ |
9e0b60a8 | 1063 | |
d318976c FN |
1064 | /* Save into global buffer if appropriate. */ |
1065 | if (repeat) | |
1066 | { | |
dc7eb48e | 1067 | if (linelength > saved_command_line_size) |
d318976c | 1068 | { |
dc7eb48e PA |
1069 | saved_command_line = xrealloc (saved_command_line, linelength); |
1070 | saved_command_line_size = linelength; | |
d318976c | 1071 | } |
dc7eb48e PA |
1072 | strcpy (saved_command_line, linebuffer); |
1073 | return saved_command_line; | |
d318976c | 1074 | } |
9e0b60a8 | 1075 | |
d318976c | 1076 | return linebuffer; |
9e0b60a8 JM |
1077 | } |
1078 | \f | |
371d5dec | 1079 | /* Print the GDB banner. */ |
9e0b60a8 | 1080 | void |
fba45db2 | 1081 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1082 | { |
1083 | /* From GNU coding standards, first line is meant to be easy for a | |
1084 | program to parse, and is just canonical program name and version | |
371d5dec | 1085 | number, which starts after last space. */ |
9e0b60a8 | 1086 | |
c16158bc | 1087 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 | 1088 | |
371d5dec | 1089 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1090 | |
3e43a32a MS |
1091 | fprintf_filtered (stream, |
1092 | "Copyright (C) 2011 Free Software Foundation, Inc.\n"); | |
9e0b60a8 JM |
1093 | |
1094 | /* Following the copyright is a brief statement that the program is | |
1095 | free software, that users are free to copy and change it on | |
1096 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1097 | there is no warranty. */ |
9e0b60a8 JM |
1098 | |
1099 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1100 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1101 | \nThis is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1102 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1103 | and \"show warranty\" for details.\n"); |
9e0b60a8 | 1104 | |
371d5dec | 1105 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1106 | |
1107 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1108 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1109 | { |
3e43a32a MS |
1110 | fprintf_filtered (stream, "--host=%s --target=%s", |
1111 | host_name, target_name); | |
9e0b60a8 JM |
1112 | } |
1113 | else | |
1114 | { | |
1115 | fprintf_filtered (stream, "%s", host_name); | |
1116 | } | |
1117 | fprintf_filtered (stream, "\"."); | |
c16158bc JM |
1118 | |
1119 | if (REPORT_BUGS_TO[0]) | |
1120 | { | |
1121 | fprintf_filtered (stream, | |
1122 | _("\nFor bug reporting instructions, please see:\n")); | |
7949220d | 1123 | fprintf_filtered (stream, "%s.", REPORT_BUGS_TO); |
c16158bc | 1124 | } |
9e0b60a8 | 1125 | } |
9e0b60a8 JM |
1126 | \f |
1127 | /* get_prompt: access method for the GDB prompt string. */ | |
1128 | ||
9e0b60a8 | 1129 | char * |
fba45db2 | 1130 | get_prompt (void) |
9e0b60a8 | 1131 | { |
362646f5 | 1132 | return PROMPT (0); |
9e0b60a8 JM |
1133 | } |
1134 | ||
1135 | void | |
d17b6f81 | 1136 | set_prompt (const char *s) |
9e0b60a8 | 1137 | { |
d17b6f81 PM |
1138 | char *p = xstrdup (s); |
1139 | ||
1140 | xfree (PROMPT (0)); | |
1141 | PROMPT (0) = p; | |
1142 | ||
1143 | /* Also, free and set new_async_prompt so prompt changes sync up | |
1144 | with set/show prompt. */ | |
1145 | xfree (new_async_prompt); | |
1146 | new_async_prompt = xstrdup (PROMPT (0)); | |
9e0b60a8 | 1147 | } |
9e0b60a8 | 1148 | \f |
c5aa993b | 1149 | |
b0abbc58 | 1150 | struct qt_args |
9e0b60a8 | 1151 | { |
b0abbc58 JJ |
1152 | char *args; |
1153 | int from_tty; | |
1154 | }; | |
9e0b60a8 | 1155 | |
54a012c9 PA |
1156 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1157 | inferior, depending on how we originally gained control of it. */ | |
1158 | ||
1159 | static int | |
1160 | kill_or_detach (struct inferior *inf, void *args) | |
1161 | { | |
1162 | struct qt_args *qt = args; | |
1163 | struct thread_info *thread; | |
1164 | ||
6c95b8df PA |
1165 | if (inf->pid == 0) |
1166 | return 0; | |
1167 | ||
b8fa0bfa PA |
1168 | thread = any_thread_of_process (inf->pid); |
1169 | if (thread != NULL) | |
9e0b60a8 | 1170 | { |
54a012c9 | 1171 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1172 | |
1173 | /* Leave core files alone. */ | |
1174 | if (target_has_execution) | |
1175 | { | |
1176 | if (inf->attach_flag) | |
1177 | target_detach (qt->args, qt->from_tty); | |
1178 | else | |
1179 | target_kill (); | |
1180 | } | |
9e0b60a8 JM |
1181 | } |
1182 | ||
54a012c9 PA |
1183 | return 0; |
1184 | } | |
1185 | ||
b8fa0bfa PA |
1186 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1187 | will do to each inferior on a "quit". ARG points to a struct | |
1188 | ui_out where output is to be collected. */ | |
1189 | ||
1190 | static int | |
1191 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1192 | { | |
1193 | struct ui_file *stb = arg; | |
1194 | ||
6c95b8df PA |
1195 | if (inf->pid == 0) |
1196 | return 0; | |
1197 | ||
b8fa0bfa PA |
1198 | if (inf->attach_flag) |
1199 | fprintf_filtered (stb, | |
1200 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1201 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1202 | else | |
1203 | fprintf_filtered (stb, | |
1204 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1205 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1206 | ||
1207 | return 0; | |
1208 | } | |
1209 | ||
1210 | /* If necessary, make the user confirm that we should quit. Return | |
1211 | non-zero if we should quit, zero if we shouldn't. */ | |
1212 | ||
1213 | int | |
1214 | quit_confirm (void) | |
1215 | { | |
1216 | struct ui_file *stb; | |
1217 | struct cleanup *old_chain; | |
1218 | char *str; | |
1219 | int qr; | |
1220 | ||
1221 | /* Don't even ask if we're only debugging a core file inferior. */ | |
1222 | if (!have_live_inferiors ()) | |
1223 | return 1; | |
1224 | ||
1225 | /* Build the query string as a single string. */ | |
1226 | stb = mem_fileopen (); | |
1227 | old_chain = make_cleanup_ui_file_delete (stb); | |
1228 | ||
1229 | /* This is something of a hack. But there's no reliable way to see | |
1230 | if a GUI is running. The `use_windows' variable doesn't cut | |
1231 | it. */ | |
1232 | if (deprecated_init_ui_hook) | |
1233 | fprintf_filtered (stb, _("A debugging session is active.\n" | |
1234 | "Do you still want to close the debugger?")); | |
1235 | else | |
1236 | { | |
1237 | fprintf_filtered (stb, _("A debugging session is active.\n\n")); | |
1238 | iterate_over_inferiors (print_inferior_quit_action, stb); | |
1239 | fprintf_filtered (stb, _("\nQuit anyway? ")); | |
1240 | } | |
1241 | ||
1242 | str = ui_file_xstrdup (stb, NULL); | |
1243 | make_cleanup (xfree, str); | |
1244 | ||
1245 | qr = query ("%s", str); | |
1246 | do_cleanups (old_chain); | |
1247 | return qr; | |
1248 | } | |
1249 | ||
54a012c9 PA |
1250 | /* Helper routine for quit_force that requires error handling. */ |
1251 | ||
1252 | static int | |
1253 | quit_target (void *arg) | |
1254 | { | |
1255 | struct qt_args *qt = (struct qt_args *)arg; | |
1256 | ||
1257 | /* Kill or detach all inferiors. */ | |
c35b1492 | 1258 | iterate_over_inferiors (kill_or_detach, qt); |
54a012c9 | 1259 | |
aa76d38d PA |
1260 | /* Give all pushed targets a chance to do minimal cleanup, and pop |
1261 | them all out. */ | |
1262 | pop_all_targets (1); | |
9e0b60a8 JM |
1263 | |
1264 | /* Save the history information if it is appropriate to do so. */ | |
1265 | if (write_history_p && history_filename) | |
1266 | write_history (history_filename); | |
1267 | ||
371d5dec MS |
1268 | do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before |
1269 | exiting. */ | |
b0abbc58 JJ |
1270 | return 0; |
1271 | } | |
1272 | ||
1273 | /* Quit without asking for confirmation. */ | |
1274 | ||
1275 | void | |
1276 | quit_force (char *args, int from_tty) | |
1277 | { | |
1278 | int exit_code = 0; | |
365c70b1 | 1279 | struct qt_args qt; |
b0abbc58 JJ |
1280 | |
1281 | /* An optional expression may be used to cause gdb to terminate with the | |
371d5dec | 1282 | value of that expression. */ |
b0abbc58 JJ |
1283 | if (args) |
1284 | { | |
1285 | struct value *val = parse_and_eval (args); | |
1286 | ||
1287 | exit_code = (int) value_as_long (val); | |
1288 | } | |
4b0ad762 AS |
1289 | else if (return_child_result) |
1290 | exit_code = return_child_result_value; | |
b0abbc58 | 1291 | |
365c70b1 JJ |
1292 | qt.args = args; |
1293 | qt.from_tty = from_tty; | |
1294 | ||
b0abbc58 | 1295 | /* We want to handle any quit errors and exit regardless. */ |
365c70b1 | 1296 | catch_errors (quit_target, &qt, |
b0abbc58 JJ |
1297 | "Quitting: ", RETURN_MASK_ALL); |
1298 | ||
9e0b60a8 JM |
1299 | exit (exit_code); |
1300 | } | |
1301 | ||
698ba934 DJ |
1302 | /* Returns whether GDB is running on a terminal and input is |
1303 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1304 | |
1305 | int | |
fba45db2 | 1306 | input_from_terminal_p (void) |
9e0b60a8 | 1307 | { |
c63a1f86 JK |
1308 | if (batch_flag) |
1309 | return 0; | |
1310 | ||
698ba934 DJ |
1311 | if (gdb_has_a_terminal () && instream == stdin) |
1312 | return 1; | |
1313 | ||
1314 | /* If INSTREAM is unset, and we are not in a user command, we | |
1315 | must be in Insight. That's like having a terminal, for our | |
1316 | purposes. */ | |
1317 | if (instream == NULL && !in_user_command) | |
1318 | return 1; | |
1319 | ||
1320 | return 0; | |
9e0b60a8 JM |
1321 | } |
1322 | \f | |
9e0b60a8 | 1323 | static void |
fba45db2 | 1324 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1325 | { |
dc7eb48e PA |
1326 | /* Can't call dont_repeat here because we're not necessarily reading |
1327 | from stdin. */ | |
1328 | *saved_command_line = 0; | |
9e0b60a8 JM |
1329 | } |
1330 | \f | |
1331 | /* Functions to manipulate command line editing control variables. */ | |
1332 | ||
1333 | /* Number of commands to print in each call to show_commands. */ | |
1334 | #define Hist_print 10 | |
d318976c | 1335 | void |
fba45db2 | 1336 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1337 | { |
1338 | /* Index for history commands. Relative to history_base. */ | |
1339 | int offset; | |
1340 | ||
1341 | /* Number of the history entry which we are planning to display next. | |
1342 | Relative to history_base. */ | |
1343 | static int num = 0; | |
1344 | ||
1345 | /* The first command in the history which doesn't exist (i.e. one more | |
1346 | than the number of the last command). Relative to history_base. */ | |
1347 | int hist_len; | |
1348 | ||
9e0b60a8 JM |
1349 | /* Print out some of the commands from the command history. */ |
1350 | /* First determine the length of the history list. */ | |
1351 | hist_len = history_size; | |
1352 | for (offset = 0; offset < history_size; offset++) | |
1353 | { | |
1354 | if (!history_get (history_base + offset)) | |
1355 | { | |
1356 | hist_len = offset; | |
1357 | break; | |
1358 | } | |
1359 | } | |
1360 | ||
1361 | if (args) | |
1362 | { | |
1363 | if (args[0] == '+' && args[1] == '\0') | |
1364 | /* "info editing +" should print from the stored position. */ | |
1365 | ; | |
1366 | else | |
1367 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1368 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1369 | } |
1370 | /* "show commands" means print the last Hist_print commands. */ | |
1371 | else | |
1372 | { | |
1373 | num = hist_len - Hist_print; | |
1374 | } | |
1375 | ||
1376 | if (num < 0) | |
1377 | num = 0; | |
1378 | ||
1379 | /* If there are at least Hist_print commands, we want to display the last | |
1380 | Hist_print rather than, say, the last 6. */ | |
1381 | if (hist_len - num < Hist_print) | |
1382 | { | |
1383 | num = hist_len - Hist_print; | |
1384 | if (num < 0) | |
1385 | num = 0; | |
1386 | } | |
1387 | ||
1388 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1389 | { | |
1390 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1391 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1392 | } |
1393 | ||
1394 | /* The next command we want to display is the next one that we haven't | |
1395 | displayed yet. */ | |
1396 | num += Hist_print; | |
1397 | ||
1398 | /* If the user repeats this command with return, it should do what | |
1399 | "show commands +" does. This is unnecessary if arg is null, | |
1400 | because "show commands +" is not useful after "show commands". */ | |
1401 | if (from_tty && args) | |
1402 | { | |
1403 | args[0] = '+'; | |
1404 | args[1] = '\0'; | |
1405 | } | |
1406 | } | |
1407 | ||
1408 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1409 | static void |
fba45db2 | 1410 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1411 | { |
1412 | if (history_size == INT_MAX) | |
1413 | unstifle_history (); | |
1414 | else if (history_size >= 0) | |
1415 | stifle_history (history_size); | |
1416 | else | |
1417 | { | |
1418 | history_size = INT_MAX; | |
8a3fe4f8 | 1419 | error (_("History size must be non-negative")); |
9e0b60a8 JM |
1420 | } |
1421 | } | |
1422 | ||
d318976c | 1423 | void |
fba45db2 | 1424 | set_history (char *args, int from_tty) |
9e0b60a8 | 1425 | { |
3e43a32a MS |
1426 | printf_unfiltered (_("\"set history\" must be followed " |
1427 | "by the name of a history subcommand.\n")); | |
9e0b60a8 JM |
1428 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1429 | } | |
1430 | ||
d318976c | 1431 | void |
fba45db2 | 1432 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1433 | { |
1434 | cmd_show_list (showhistlist, from_tty, ""); | |
1435 | } | |
1436 | ||
371d5dec | 1437 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1438 | |
1439 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1440 | void |
fba45db2 | 1441 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1442 | { |
1443 | char *cmdname = "verbose"; | |
1444 | struct cmd_list_element *showcmd; | |
1445 | ||
1446 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1447 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 JM |
1448 | |
1449 | if (info_verbose) | |
1450 | { | |
1451 | c->doc = "Set verbose printing of informational messages."; | |
1452 | showcmd->doc = "Show verbose printing of informational messages."; | |
1453 | } | |
1454 | else | |
1455 | { | |
1456 | c->doc = "Set verbosity."; | |
1457 | showcmd->doc = "Show verbosity."; | |
1458 | } | |
1459 | } | |
1460 | ||
9e0b60a8 | 1461 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1462 | have been read so that the user can change the history file via his |
1463 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1464 | overrides all of this. */ | |
9e0b60a8 JM |
1465 | |
1466 | void | |
fba45db2 | 1467 | init_history (void) |
9e0b60a8 JM |
1468 | { |
1469 | char *tmpenv; | |
1470 | ||
1471 | tmpenv = getenv ("HISTSIZE"); | |
1472 | if (tmpenv) | |
1473 | history_size = atoi (tmpenv); | |
1474 | else if (!history_size) | |
1475 | history_size = 256; | |
1476 | ||
1477 | stifle_history (history_size); | |
1478 | ||
1479 | tmpenv = getenv ("GDBHISTFILE"); | |
1480 | if (tmpenv) | |
1b36a34b | 1481 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1482 | else if (!history_filename) |
1483 | { | |
1484 | /* We include the current directory so that if the user changes | |
1485 | directories the file written will be the same as the one | |
1486 | that was read. */ | |
a0b3c4fd | 1487 | #ifdef __MSDOS__ |
eb2f494a | 1488 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1489 | history_filename = concat (current_directory, "/_gdb_history", |
1490 | (char *)NULL); | |
a0b3c4fd | 1491 | #else |
1754f103 MK |
1492 | history_filename = concat (current_directory, "/.gdb_history", |
1493 | (char *)NULL); | |
a0b3c4fd | 1494 | #endif |
c5aa993b | 1495 | } |
9e0b60a8 JM |
1496 | read_history (history_filename); |
1497 | } | |
1498 | ||
920d2a44 AC |
1499 | static void |
1500 | show_new_async_prompt (struct ui_file *file, int from_tty, | |
1501 | struct cmd_list_element *c, const char *value) | |
1502 | { | |
1503 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1504 | } | |
1505 | ||
1506 | static void | |
1507 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1508 | struct cmd_list_element *c, const char *value) | |
1509 | { | |
3e43a32a MS |
1510 | fprintf_filtered (file, _("Editing of command lines as " |
1511 | "they are typed is %s.\n"), | |
920d2a44 AC |
1512 | value); |
1513 | } | |
1514 | ||
1515 | static void | |
1516 | show_annotation_level (struct ui_file *file, int from_tty, | |
1517 | struct cmd_list_element *c, const char *value) | |
1518 | { | |
1519 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1520 | } | |
1521 | ||
1522 | static void | |
1523 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1524 | struct cmd_list_element *c, const char *value) | |
1525 | { | |
3e43a32a MS |
1526 | fprintf_filtered (file, _("Notification of completion for " |
1527 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
1528 | value); |
1529 | } | |
9e0b60a8 | 1530 | static void |
fba45db2 | 1531 | init_main (void) |
9e0b60a8 | 1532 | { |
362646f5 AC |
1533 | /* initialize the prompt stack to a simple "(gdb) " prompt or to |
1534 | whatever the DEFAULT_PROMPT is. */ | |
1535 | the_prompts.top = 0; | |
1536 | PREFIX (0) = ""; | |
1b36a34b | 1537 | PROMPT (0) = xstrdup (DEFAULT_PROMPT); |
362646f5 AC |
1538 | SUFFIX (0) = ""; |
1539 | /* Set things up for annotation_level > 1, if the user ever decides | |
1540 | to use it. */ | |
1541 | async_annotation_suffix = "prompt"; | |
1542 | /* Set the variable associated with the setshow prompt command. */ | |
1b36a34b | 1543 | new_async_prompt = xstrdup (PROMPT (0)); |
362646f5 AC |
1544 | |
1545 | /* If gdb was started with --annotate=2, this is equivalent to the | |
1546 | user entering the command 'set annotate 2' at the gdb prompt, so | |
1547 | we need to do extra processing. */ | |
1548 | if (annotation_level > 1) | |
1549 | set_async_annotation_level (NULL, 0, NULL); | |
9e0b60a8 JM |
1550 | |
1551 | /* Set the important stuff up for command editing. */ | |
1552 | command_editing_p = 1; | |
9e0b60a8 JM |
1553 | history_expansion_p = 0; |
1554 | write_history_p = 0; | |
1555 | ||
1556 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 1557 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
38017ce8 | 1558 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1559 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1560 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1561 | rl_readline_name = "gdb"; |
7cb3ec5e | 1562 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1563 | |
467d8519 TT |
1564 | /* The name for this defun comes from Bash, where it originated. |
1565 | 15 is Control-o, the same binding this function has in Bash. */ | |
1566 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1567 | ||
4d28ad1e | 1568 | add_setshow_string_cmd ("prompt", class_support, |
3e43a32a MS |
1569 | &new_async_prompt, |
1570 | _("Set gdb's prompt"), | |
1571 | _("Show gdb's prompt"), | |
1572 | NULL, set_async_prompt, | |
920d2a44 | 1573 | show_new_async_prompt, |
4d28ad1e | 1574 | &setlist, &showlist); |
9e0b60a8 | 1575 | |
1bedd215 | 1576 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
1577 | Don't repeat this command.\nPrimarily \ |
1578 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 1579 | hitting return.")); |
9e0b60a8 | 1580 | |
5bf193a2 AC |
1581 | add_setshow_boolean_cmd ("editing", class_support, |
1582 | &async_command_editing_p, _("\ | |
1583 | Set editing of command lines as they are typed."), _("\ | |
1584 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1585 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1586 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1587 | EMACS-like or VI-like commands like control-P or ESC."), |
1588 | set_async_editing_command, | |
920d2a44 | 1589 | show_async_command_editing_p, |
5bf193a2 AC |
1590 | &setlist, &showlist); |
1591 | ||
1592 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1593 | Set saving of the history record on exit."), _("\ | |
1594 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1595 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1596 | Without an argument, saving is enabled."), |
1597 | NULL, | |
920d2a44 | 1598 | show_write_history_p, |
5bf193a2 | 1599 | &sethistlist, &showhistlist); |
9e0b60a8 | 1600 | |
4d28ad1e AC |
1601 | add_setshow_integer_cmd ("size", no_class, &history_size, _("\ |
1602 | Set the size of the command history,"), _("\ | |
1603 | Show the size of the command history,"), _("\ | |
1604 | ie. the number of previous commands to keep a record of."), | |
1605 | set_history_size_command, | |
920d2a44 | 1606 | show_history_size, |
4d28ad1e AC |
1607 | &sethistlist, &showhistlist); |
1608 | ||
1609 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1610 | Set the filename in which to record the command history"), _("\ | |
1611 | Show the filename in which to record the command history"), _("\ | |
1612 | (the list of previous commands of which a record is kept)."), | |
1613 | NULL, | |
920d2a44 | 1614 | show_history_filename, |
4d28ad1e | 1615 | &sethistlist, &showhistlist); |
9e0b60a8 | 1616 | |
5bf193a2 AC |
1617 | add_setshow_boolean_cmd ("confirm", class_support, &caution, _("\ |
1618 | Set whether to confirm potentially dangerous operations."), _("\ | |
1619 | Show whether to confirm potentially dangerous operations."), NULL, | |
1620 | NULL, | |
920d2a44 | 1621 | show_caution, |
5bf193a2 | 1622 | &setlist, &showlist); |
9e0b60a8 | 1623 | |
85c07804 AC |
1624 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1625 | Set annotation_level."), _("\ | |
1626 | Show annotation_level."), _("\ | |
9e0b60a8 | 1627 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 AC |
1628 | 2 == output annotated suitably for use by programs that control GDB."), |
1629 | set_async_annotation_level, | |
920d2a44 | 1630 | show_annotation_level, |
85c07804 | 1631 | &setlist, &showlist); |
362646f5 | 1632 | |
5bf193a2 AC |
1633 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1634 | &exec_done_display_p, _("\ | |
1635 | Set notification of completion for asynchronous execution commands."), _("\ | |
1636 | Show notification of completion for asynchronous execution commands."), _("\ | |
1637 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1638 | NULL, | |
920d2a44 | 1639 | show_exec_done_display_p, |
5bf193a2 | 1640 | &setlist, &showlist); |
b14b1491 TT |
1641 | |
1642 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
1643 | &gdb_datadir, _("Set GDB's data directory."), | |
1644 | _("Show GDB's data directory."), | |
1645 | _("\ | |
1646 | When set, GDB uses the specified path to search for data files."), | |
1647 | NULL, NULL, | |
1648 | &setlist, | |
1649 | &showlist); | |
9e0b60a8 | 1650 | } |
64cdedad EZ |
1651 | |
1652 | void | |
1653 | gdb_init (char *argv0) | |
1654 | { | |
1655 | if (pre_init_ui_hook) | |
1656 | pre_init_ui_hook (); | |
1657 | ||
371d5dec | 1658 | /* Run the init function of each source file. */ |
64cdedad | 1659 | |
64cdedad EZ |
1660 | #ifdef __MSDOS__ |
1661 | /* Make sure we return to the original directory upon exit, come | |
1662 | what may, since the OS doesn't do that for us. */ | |
1663 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1664 | #endif | |
1665 | ||
371d5dec MS |
1666 | init_cmd_lists (); /* This needs to be done first. */ |
1667 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
1668 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 DE |
1669 | |
1670 | /* Here is where we call all the _initialize_foo routines. */ | |
64cdedad | 1671 | initialize_all_files (); |
9dea9163 | 1672 | |
6c95b8df PA |
1673 | /* This creates the current_program_space. Do this after all the |
1674 | _initialize_foo routines have had a chance to install their | |
1675 | per-sspace data keys. Also do this before | |
1676 | initialize_current_architecture is called, because it accesses | |
1677 | exec_bfd of the current program space. */ | |
1678 | initialize_progspace (); | |
1679 | initialize_inferiors (); | |
64cdedad EZ |
1680 | initialize_current_architecture (); |
1681 | init_cli_cmds(); | |
371d5dec | 1682 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 1683 | |
0ea3f30e DJ |
1684 | initialize_stdin_serial (); |
1685 | ||
362646f5 | 1686 | async_init_signals (); |
64cdedad | 1687 | |
371d5dec MS |
1688 | /* We need a default language for parsing expressions, so simple |
1689 | things like "set width 0" won't fail if no language is explicitly | |
1690 | set in a config file or implicitly set by reading an executable | |
1691 | during startup. */ | |
64cdedad | 1692 | set_language (language_c); |
371d5dec | 1693 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 1694 | |
c378eb4e | 1695 | /* Allow another UI to initialize. If the UI fails to initialize, |
9a4105ab AC |
1696 | and it wants GDB to revert to the CLI, it should clear |
1697 | deprecated_init_ui_hook. */ | |
1698 | if (deprecated_init_ui_hook) | |
1699 | deprecated_init_ui_hook (argv0); | |
9dea9163 DE |
1700 | |
1701 | #ifdef HAVE_PYTHON | |
371d5dec MS |
1702 | /* Python initialization can require various commands to be |
1703 | installed. For example "info pretty-printer" needs the "info" | |
1704 | prefix to be installed. Keep things simple and just do final | |
1705 | python initialization here. */ | |
9dea9163 DE |
1706 | finish_python_initialization (); |
1707 | #endif | |
64cdedad | 1708 | } |