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, |
0fb0cc75 | 5 | 2008, 2009 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "gdbcmd.h" | |
24 | #include "call-cmds.h" | |
210661e7 EZ |
25 | #include "cli/cli-cmds.h" |
26 | #include "cli/cli-script.h" | |
27 | #include "cli/cli-setshow.h" | |
18a642a1 | 28 | #include "cli/cli-decode.h" |
c906108c SS |
29 | #include "symtab.h" |
30 | #include "inferior.h" | |
60250e8b | 31 | #include "exceptions.h" |
042be3a9 | 32 | #include <signal.h> |
c906108c SS |
33 | #include "target.h" |
34 | #include "breakpoint.h" | |
35 | #include "gdbtypes.h" | |
36 | #include "expression.h" | |
37 | #include "value.h" | |
38 | #include "language.h" | |
c5aa993b | 39 | #include "terminal.h" /* For job_control. */ |
c906108c | 40 | #include "annotate.h" |
c5f0f3d0 | 41 | #include "completer.h" |
c906108c | 42 | #include "top.h" |
d4f3574e | 43 | #include "version.h" |
210661e7 | 44 | #include "serial.h" |
d16aafd8 | 45 | #include "doublest.h" |
f9c696d2 | 46 | #include "gdb_assert.h" |
f17517ea | 47 | #include "main.h" |
2e03ee74 | 48 | #include "event-loop.h" |
8ea051c5 | 49 | #include "gdbthread.h" |
c906108c SS |
50 | |
51 | /* readline include files */ | |
dbda9972 AC |
52 | #include "readline/readline.h" |
53 | #include "readline/history.h" | |
c906108c SS |
54 | |
55 | /* readline defines this. */ | |
56 | #undef savestring | |
57 | ||
58 | #include <sys/types.h> | |
c906108c | 59 | |
c2c6d25f | 60 | #include "event-top.h" |
c906108c SS |
61 | #include "gdb_string.h" |
62 | #include "gdb_stat.h" | |
63 | #include <ctype.h> | |
8b93c638 JM |
64 | #include "ui-out.h" |
65 | #include "cli-out.h" | |
c906108c | 66 | |
104c1213 JM |
67 | /* Default command line prompt. This is overriden in some configs. */ |
68 | ||
69 | #ifndef DEFAULT_PROMPT | |
70 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
71 | #endif |
72 | ||
73 | /* Initialization file name for gdb. This is overridden in some configs. */ | |
74 | ||
eaae3919 EZ |
75 | #ifndef PATH_MAX |
76 | # ifdef FILENAME_MAX | |
77 | # define PATH_MAX FILENAME_MAX | |
78 | # else | |
79 | # define PATH_MAX 512 | |
80 | # endif | |
81 | #endif | |
82 | ||
c906108c SS |
83 | #ifndef GDBINIT_FILENAME |
84 | #define GDBINIT_FILENAME ".gdbinit" | |
85 | #endif | |
eaae3919 | 86 | char gdbinit[PATH_MAX + 1] = GDBINIT_FILENAME; |
c906108c SS |
87 | |
88 | int inhibit_gdbinit = 0; | |
89 | ||
90 | /* If nonzero, and GDB has been configured to be able to use windows, | |
91 | attempt to open them upon startup. */ | |
92 | ||
f15ab4a7 | 93 | int use_windows = 0; |
c906108c | 94 | |
c906108c SS |
95 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
96 | ||
97 | /* Flag for whether we want all the "from_tty" gubbish printed. */ | |
98 | ||
c5aa993b | 99 | int caution = 1; /* Default is yes, sigh. */ |
920d2a44 AC |
100 | static void |
101 | show_caution (struct ui_file *file, int from_tty, | |
102 | struct cmd_list_element *c, const char *value) | |
103 | { | |
104 | fprintf_filtered (file, _("\ | |
105 | Whether to confirm potentially dangerous operations is %s.\n"), | |
106 | value); | |
107 | } | |
c906108c | 108 | |
c906108c SS |
109 | /* stdio stream that command input is being read from. Set to stdin normally. |
110 | Set by source_command to the file we are sourcing. Set to NULL if we are | |
111 | executing a user-defined command or interacting via a GUI. */ | |
112 | ||
113 | FILE *instream; | |
114 | ||
698ba934 DJ |
115 | /* Flag to indicate whether a user defined command is currently running. */ |
116 | ||
117 | int in_user_command; | |
118 | ||
c906108c SS |
119 | /* Current working directory. */ |
120 | ||
121 | char *current_directory; | |
122 | ||
123 | /* The directory name is actually stored here (usually). */ | |
124 | char gdb_dirbuf[1024]; | |
125 | ||
126 | /* Function to call before reading a command, if nonzero. | |
127 | The function receives two args: an input stream, | |
128 | and a prompt string. */ | |
129 | ||
507f3c78 | 130 | void (*window_hook) (FILE *, char *); |
c906108c SS |
131 | |
132 | int epoch_interface; | |
133 | int xgdb_verbose; | |
134 | ||
c906108c SS |
135 | /* Buffer used for reading command lines, and the size |
136 | allocated for it so far. */ | |
137 | ||
138 | char *line; | |
139 | int linesize = 100; | |
140 | ||
141 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 142 | affects things like recording into the command history, commands |
c906108c SS |
143 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
144 | whatever) can issue its own commands and also send along commands | |
145 | from the user, and have the user not notice that the user interface | |
146 | is issuing commands too. */ | |
147 | int server_command; | |
148 | ||
149 | /* Baud rate specified for talking to serial target systems. Default | |
150 | is left as -1, so targets can choose their own defaults. */ | |
151 | /* FIXME: This means that "show remotebaud" and gr_files_info can print -1 | |
152 | or (unsigned int)-1. This is a Bad User Interface. */ | |
153 | ||
154 | int baud_rate = -1; | |
155 | ||
156 | /* Timeout limit for response from target. */ | |
157 | ||
ce808e91 AC |
158 | /* The default value has been changed many times over the years. It |
159 | was originally 5 seconds. But that was thought to be a long time | |
160 | to sit and wait, so it was changed to 2 seconds. That was thought | |
161 | to be plenty unless the connection was going through some terminal | |
162 | server or multiplexer or other form of hairy serial connection. | |
163 | ||
164 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
165 | it began being used in other remote-* targets. It appears that the | |
166 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 167 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
168 | |
169 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
170 | 20 seconds is far worse. This demonstrates the difficulty of using | |
171 | a single variable for all protocol timeouts. | |
172 | ||
173 | As remote.c is used much more than remote-e7000.c, it was changed | |
174 | back to 2 seconds in 1999. */ | |
175 | ||
176 | int remote_timeout = 2; | |
c906108c SS |
177 | |
178 | /* Non-zero tells remote* modules to output debugging info. */ | |
179 | ||
180 | int remote_debug = 0; | |
181 | ||
6dd77b81 RH |
182 | /* Sbrk location on entry to main. Used for statistics only. */ |
183 | #ifdef HAVE_SBRK | |
184 | char *lim_at_start; | |
185 | #endif | |
186 | ||
c906108c SS |
187 | /* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT. */ |
188 | ||
189 | #ifndef STOP_SIGNAL | |
190 | #ifdef SIGTSTP | |
191 | #define STOP_SIGNAL SIGTSTP | |
a14ed312 | 192 | static void stop_sig (int); |
c906108c SS |
193 | #endif |
194 | #endif | |
195 | ||
c906108c SS |
196 | /* Hooks for alternate command interfaces. */ |
197 | ||
198 | /* Called after most modules have been initialized, but before taking users | |
1ad24239 KS |
199 | command file. |
200 | ||
201 | If the UI fails to initialize and it wants GDB to continue | |
202 | using the default UI, then it should clear this hook before returning. */ | |
c906108c | 203 | |
9a4105ab | 204 | void (*deprecated_init_ui_hook) (char *argv0); |
7a292a7a SS |
205 | |
206 | /* This hook is called from within gdb's many mini-event loops which could | |
207 | steal control from a real user interface's event loop. It returns | |
208 | non-zero if the user is requesting a detach, zero otherwise. */ | |
209 | ||
98bbd631 | 210 | int (*deprecated_ui_loop_hook) (int); |
c906108c SS |
211 | |
212 | /* Called instead of command_loop at top level. Can be invoked via | |
b5a2688f | 213 | throw_exception(). */ |
c906108c | 214 | |
9a4105ab | 215 | void (*deprecated_command_loop_hook) (void); |
c906108c SS |
216 | |
217 | ||
c906108c SS |
218 | /* Called from print_frame_info to list the line we stopped in. */ |
219 | ||
9a4105ab AC |
220 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, int line, |
221 | int stopline, int noerror); | |
c906108c SS |
222 | /* Replaces most of query. */ |
223 | ||
9a4105ab | 224 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
225 | |
226 | /* Replaces most of warning. */ | |
227 | ||
9a4105ab | 228 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 229 | |
9a4105ab AC |
230 | /* These three functions support getting lines of text from the user. |
231 | They are used in sequence. First deprecated_readline_begin_hook is | |
232 | called with a text string that might be (for example) a message for | |
233 | the user to type in a sequence of commands to be executed at a | |
234 | breakpoint. If this function calls back to a GUI, it might take | |
235 | this opportunity to pop up a text interaction window with this | |
236 | message. Next, deprecated_readline_hook is called with a prompt | |
237 | that is emitted prior to collecting the user input. It can be | |
238 | called multiple times. Finally, deprecated_readline_end_hook is | |
239 | called to notify the GUI that we are done with the interaction | |
240 | window and it can close it. */ | |
c906108c | 241 | |
9a4105ab AC |
242 | void (*deprecated_readline_begin_hook) (char *, ...); |
243 | char *(*deprecated_readline_hook) (char *); | |
244 | void (*deprecated_readline_end_hook) (void); | |
c906108c | 245 | |
6426a772 JM |
246 | /* Called as appropriate to notify the interface that we have attached |
247 | to or detached from an already running process. */ | |
248 | ||
9a4105ab AC |
249 | void (*deprecated_attach_hook) (void); |
250 | void (*deprecated_detach_hook) (void); | |
6426a772 | 251 | |
c906108c SS |
252 | /* Called during long calculations to allow GUI to repair window damage, and to |
253 | check for stop buttons, etc... */ | |
254 | ||
9a4105ab | 255 | void (*deprecated_interactive_hook) (void); |
c906108c | 256 | |
c906108c SS |
257 | /* Tell the GUI someone changed the register REGNO. -1 means |
258 | that the caller does not know which register changed or | |
c5aa993b | 259 | that several registers have changed (see value_assign). */ |
9a4105ab | 260 | void (*deprecated_register_changed_hook) (int regno); |
c906108c SS |
261 | |
262 | /* Tell the GUI someone changed LEN bytes of memory at ADDR */ | |
9a4105ab | 263 | void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len); |
c906108c SS |
264 | |
265 | /* Called when going to wait for the target. Usually allows the GUI to run | |
266 | while waiting for target events. */ | |
267 | ||
9a4105ab | 268 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
269 | struct target_waitstatus *status, |
270 | int options); | |
c906108c SS |
271 | |
272 | /* Used by UI as a wrapper around command execution. May do various things | |
273 | like enabling/disabling buttons, etc... */ | |
274 | ||
9a4105ab AC |
275 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, char *cmd, |
276 | int from_tty); | |
c906108c | 277 | |
96baa820 JM |
278 | /* Called after a `set' command has finished. Is only run if the |
279 | `set' command succeeded. */ | |
280 | ||
9a4105ab | 281 | void (*deprecated_set_hook) (struct cmd_list_element * c); |
96baa820 | 282 | |
c906108c SS |
283 | /* Called when the current thread changes. Argument is thread id. */ |
284 | ||
9a4105ab | 285 | void (*deprecated_context_hook) (int id); |
c906108c | 286 | |
c906108c SS |
287 | /* Handler for SIGHUP. */ |
288 | ||
289 | #ifdef SIGHUP | |
392a587b | 290 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 SS |
291 | gdb to use the event loop as the default command loop and we merge |
292 | event-top.c into this file, top.c */ | |
293 | /* static */ int | |
d0c8cdfb | 294 | quit_cover (void *s) |
c906108c | 295 | { |
c5aa993b JM |
296 | caution = 0; /* Throw caution to the wind -- we're exiting. |
297 | This prevents asking the user dumb questions. */ | |
298 | quit_command ((char *) 0, 0); | |
c906108c SS |
299 | return 0; |
300 | } | |
301 | #endif /* defined SIGHUP */ | |
302 | \f | |
303 | /* Line number we are currently in in a file which is being sourced. */ | |
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 */ | |
307 | /* static */ int source_line_number; | |
c906108c SS |
308 | |
309 | /* Name of the file we are sourcing. */ | |
392a587b | 310 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
311 | gdb to use the event loop as the default command loop and we merge |
312 | event-top.c into this file, top.c */ | |
313 | /* static */ char *source_file_name; | |
c906108c | 314 | |
c906108c SS |
315 | /* Clean up on error during a "source" command (or execution of a |
316 | user-defined command). */ | |
317 | ||
d318976c | 318 | void |
e41a3b1a | 319 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
320 | { |
321 | /* Restore the previous input stream. */ | |
322 | instream = stream; | |
323 | } | |
324 | ||
325 | /* Read commands from STREAM. */ | |
326 | void | |
fba45db2 | 327 | read_command_file (FILE *stream) |
c906108c SS |
328 | { |
329 | struct cleanup *cleanups; | |
330 | ||
e41a3b1a | 331 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 332 | instream = stream; |
c5aa993b | 333 | command_loop (); |
c906108c SS |
334 | do_cleanups (cleanups); |
335 | } | |
336 | \f | |
507f3c78 | 337 | void (*pre_init_ui_hook) (void); |
c906108c | 338 | |
e41a3b1a AC |
339 | #ifdef __MSDOS__ |
340 | void | |
341 | do_chdir_cleanup (void *old_dir) | |
342 | { | |
343 | chdir (old_dir); | |
b8c9b27d | 344 | xfree (old_dir); |
e41a3b1a AC |
345 | } |
346 | #endif | |
347 | ||
d318976c FN |
348 | /* Execute the line P as a command. |
349 | Pass FROM_TTY as second argument to the defining function. */ | |
c906108c | 350 | |
4f8d22e3 PA |
351 | /* Execute command P, in the current user context. */ |
352 | ||
d318976c FN |
353 | void |
354 | execute_command (char *p, int from_tty) | |
c906108c | 355 | { |
52f0bd74 AC |
356 | struct cmd_list_element *c; |
357 | enum language flang; | |
d318976c FN |
358 | static int warned = 0; |
359 | char *line; | |
2f77b315 | 360 | long time_at_cmd_start = 0; |
32c1e744 VP |
361 | #ifdef HAVE_SBRK |
362 | long space_at_cmd_start = 0; | |
363 | #endif | |
364 | extern int display_time; | |
365 | extern int display_space; | |
366 | ||
367 | if (target_can_async_p ()) | |
368 | { | |
369 | time_at_cmd_start = get_run_time (); | |
370 | ||
371 | if (display_space) | |
372 | { | |
373 | #ifdef HAVE_SBRK | |
374 | char *lim = (char *) sbrk (0); | |
375 | space_at_cmd_start = lim - lim_at_start; | |
376 | #endif | |
377 | } | |
378 | } | |
67e1e03a | 379 | |
d318976c | 380 | free_all_values (); |
c906108c | 381 | |
d318976c FN |
382 | /* Force cleanup of any alloca areas if using C alloca instead of |
383 | a builtin alloca. */ | |
384 | alloca (0); | |
c906108c | 385 | |
d318976c FN |
386 | /* This can happen when command_line_input hits end of file. */ |
387 | if (p == NULL) | |
388 | return; | |
c906108c | 389 | |
49d03eab | 390 | target_log_command (p); |
8b93c638 | 391 | |
d318976c FN |
392 | while (*p == ' ' || *p == '\t') |
393 | p++; | |
394 | if (*p) | |
8b93c638 | 395 | { |
d318976c FN |
396 | char *arg; |
397 | line = p; | |
8b93c638 | 398 | |
16026cd7 AS |
399 | /* If trace-commands is set then this will print this command. */ |
400 | print_command_trace (p); | |
401 | ||
d318976c | 402 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 403 | |
d318976c FN |
404 | /* Pass null arg rather than an empty one. */ |
405 | arg = *p ? p : 0; | |
8b93c638 | 406 | |
9f60d481 AC |
407 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
408 | while the is_complete_command(cfunc) test is just plain | |
409 | bogus. They should both be replaced by a test of the form | |
410 | c->strip_trailing_white_space_p. */ | |
411 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
412 | can't be replaced with func. This is because it is the | |
413 | cfunc, and not the func, that has the value that the | |
414 | is_complete_command hack is testing for. */ | |
415 | /* Clear off trailing whitespace, except for set and complete | |
416 | command. */ | |
d318976c FN |
417 | if (arg |
418 | && c->type != set_cmd | |
bbaca940 | 419 | && !is_complete_command (c)) |
8b93c638 | 420 | { |
d318976c FN |
421 | p = arg + strlen (arg) - 1; |
422 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
423 | p--; | |
424 | *(p + 1) = '\0'; | |
8b93c638 JM |
425 | } |
426 | ||
d318976c | 427 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 428 | execute_cmd_pre_hook (c); |
c906108c | 429 | |
d318976c FN |
430 | if (c->flags & DEPRECATED_WARN_USER) |
431 | deprecated_cmd_warning (&line); | |
c906108c | 432 | |
d318976c FN |
433 | if (c->class == class_user) |
434 | execute_user_command (c, arg); | |
435 | else if (c->type == set_cmd || c->type == show_cmd) | |
436 | do_setshow_command (arg, from_tty & caution, c); | |
f436dd25 | 437 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 438 | error (_("That is not a command, just a help topic.")); |
9a4105ab AC |
439 | else if (deprecated_call_command_hook) |
440 | deprecated_call_command_hook (c, arg, from_tty & caution); | |
d318976c | 441 | else |
f436dd25 | 442 | cmd_func (c, arg, from_tty & caution); |
d318976c FN |
443 | |
444 | /* If this command has been post-hooked, run the hook last. */ | |
5913bcb0 | 445 | execute_cmd_post_hook (c); |
c906108c | 446 | |
c906108c SS |
447 | } |
448 | ||
d318976c FN |
449 | /* Tell the user if the language has changed (except first time). */ |
450 | if (current_language != expected_language) | |
c906108c | 451 | { |
d318976c | 452 | if (language_mode == language_mode_auto) |
c906108c | 453 | { |
d318976c | 454 | language_info (1); /* Print what changed. */ |
c906108c | 455 | } |
d318976c | 456 | warned = 0; |
c906108c SS |
457 | } |
458 | ||
d318976c FN |
459 | /* Warn the user if the working language does not match the |
460 | language of the current frame. Only warn the user if we are | |
461 | actually running the program, i.e. there is a stack. */ | |
462 | /* FIXME: This should be cacheing the frame and only running when | |
463 | the frame changes. */ | |
464 | ||
d729566a | 465 | if (has_stack_frames ()) |
c906108c | 466 | { |
d318976c FN |
467 | flang = get_frame_language (); |
468 | if (!warned | |
469 | && flang != language_unknown | |
470 | && flang != current_language->la_language) | |
c906108c | 471 | { |
d318976c FN |
472 | printf_filtered ("%s\n", lang_frame_mismatch_warn); |
473 | warned = 1; | |
c906108c | 474 | } |
c906108c SS |
475 | } |
476 | } | |
477 | ||
d318976c FN |
478 | /* Read commands from `instream' and execute them |
479 | until end of file or error reading instream. */ | |
c906108c | 480 | |
d318976c FN |
481 | void |
482 | command_loop (void) | |
c906108c | 483 | { |
d318976c FN |
484 | struct cleanup *old_chain; |
485 | char *command; | |
486 | int stdin_is_tty = ISATTY (stdin); | |
487 | long time_at_cmd_start; | |
488 | #ifdef HAVE_SBRK | |
489 | long space_at_cmd_start = 0; | |
490 | #endif | |
491 | extern int display_time; | |
492 | extern int display_space; | |
c5aa993b | 493 | |
d318976c FN |
494 | while (instream && !feof (instream)) |
495 | { | |
d318976c FN |
496 | if (window_hook && instream == stdin) |
497 | (*window_hook) (instream, get_prompt ()); | |
c906108c | 498 | |
d318976c FN |
499 | quit_flag = 0; |
500 | if (instream == stdin && stdin_is_tty) | |
501 | reinitialize_more_filter (); | |
502 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 503 | |
d318976c FN |
504 | /* Get a command-line. This calls the readline package. */ |
505 | command = command_line_input (instream == stdin ? | |
506 | get_prompt () : (char *) NULL, | |
507 | instream == stdin, "prompt"); | |
d318976c FN |
508 | if (command == 0) |
509 | return; | |
c906108c | 510 | |
d318976c | 511 | time_at_cmd_start = get_run_time (); |
c906108c | 512 | |
d318976c | 513 | if (display_space) |
9e0b60a8 | 514 | { |
d318976c | 515 | #ifdef HAVE_SBRK |
d318976c | 516 | char *lim = (char *) sbrk (0); |
6dd77b81 | 517 | space_at_cmd_start = lim - lim_at_start; |
9e0b60a8 | 518 | #endif |
d318976c | 519 | } |
9e0b60a8 | 520 | |
d318976c | 521 | execute_command (command, instream == stdin); |
347bddb7 PA |
522 | |
523 | /* Do any commands attached to breakpoint we are stopped at. */ | |
524 | bpstat_do_actions (); | |
525 | ||
d318976c | 526 | do_cleanups (old_chain); |
9e0b60a8 | 527 | |
d318976c | 528 | if (display_time) |
9e0b60a8 | 529 | { |
d318976c | 530 | long cmd_time = get_run_time () - time_at_cmd_start; |
9e0b60a8 | 531 | |
a3f17187 | 532 | printf_unfiltered (_("Command execution time: %ld.%06ld\n"), |
d318976c | 533 | cmd_time / 1000000, cmd_time % 1000000); |
9e0b60a8 | 534 | } |
9e0b60a8 | 535 | |
d318976c | 536 | if (display_space) |
9e0b60a8 | 537 | { |
d318976c | 538 | #ifdef HAVE_SBRK |
d318976c | 539 | char *lim = (char *) sbrk (0); |
6dd77b81 | 540 | long space_now = lim - lim_at_start; |
d318976c FN |
541 | long space_diff = space_now - space_at_cmd_start; |
542 | ||
57ee890f | 543 | printf_unfiltered (_("Space used: %ld (%s%ld for this command)\n"), |
d318976c | 544 | space_now, |
57ee890f | 545 | (space_diff >= 0 ? "+" : ""), |
d318976c FN |
546 | space_diff); |
547 | #endif | |
9e0b60a8 | 548 | } |
9e0b60a8 | 549 | } |
9e0b60a8 | 550 | } |
d318976c FN |
551 | \f |
552 | /* Commands call this if they do not want to be repeated by null lines. */ | |
9e0b60a8 | 553 | |
d318976c FN |
554 | void |
555 | dont_repeat (void) | |
9e0b60a8 | 556 | { |
d318976c FN |
557 | if (server_command) |
558 | return; | |
9e0b60a8 | 559 | |
d318976c FN |
560 | /* If we aren't reading from standard input, we are saving the last |
561 | thing read from stdin in line and don't want to delete it. Null lines | |
562 | won't repeat here in any case. */ | |
563 | if (instream == stdin) | |
564 | *line = 0; | |
9e0b60a8 | 565 | } |
d318976c FN |
566 | \f |
567 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 568 | |
d318976c FN |
569 | It prints PROMPT_ARG once at the start. |
570 | Action is compatible with "readline", e.g. space for the result is | |
571 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 572 | |
d318976c FN |
573 | A NULL return means end of file. */ |
574 | char * | |
575 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 576 | { |
d318976c FN |
577 | int c; |
578 | char *result; | |
579 | int input_index = 0; | |
580 | int result_size = 80; | |
9e0b60a8 | 581 | |
d318976c | 582 | if (prompt_arg) |
9e0b60a8 | 583 | { |
d318976c FN |
584 | /* Don't use a _filtered function here. It causes the assumed |
585 | character position to be off, since the newline we read from | |
586 | the user is not accounted for. */ | |
587 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
588 | gdb_flush (gdb_stdout); |
589 | } | |
590 | ||
d318976c | 591 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
592 | |
593 | while (1) | |
594 | { | |
d318976c FN |
595 | /* Read from stdin if we are executing a user defined command. |
596 | This is the right thing for prompt_for_continue, at least. */ | |
597 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 598 | |
d318976c | 599 | if (c == EOF) |
9e0b60a8 | 600 | { |
d318976c FN |
601 | if (input_index > 0) |
602 | /* The last line does not end with a newline. Return it, and | |
603 | if we are called again fgetc will still return EOF and | |
604 | we'll return NULL then. */ | |
9e0b60a8 | 605 | break; |
b8c9b27d | 606 | xfree (result); |
d318976c | 607 | return NULL; |
9e0b60a8 | 608 | } |
c5aa993b | 609 | |
d318976c | 610 | if (c == '\n') |
9e0b60a8 | 611 | { |
d318976c FN |
612 | if (input_index > 0 && result[input_index - 1] == '\r') |
613 | input_index--; | |
614 | break; | |
9e0b60a8 | 615 | } |
9e0b60a8 | 616 | |
d318976c FN |
617 | result[input_index++] = c; |
618 | while (input_index >= result_size) | |
9e0b60a8 | 619 | { |
d318976c FN |
620 | result_size *= 2; |
621 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 622 | } |
9e0b60a8 JM |
623 | } |
624 | ||
d318976c FN |
625 | result[input_index++] = '\0'; |
626 | return result; | |
9e0b60a8 JM |
627 | } |
628 | ||
d318976c FN |
629 | /* Variables which control command line editing and history |
630 | substitution. These variables are given default values at the end | |
631 | of this file. */ | |
632 | static int command_editing_p; | |
920d2a44 | 633 | |
d318976c FN |
634 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
635 | gdb to use the event loop as the default command loop and we merge | |
636 | event-top.c into this file, top.c */ | |
920d2a44 | 637 | |
d318976c | 638 | /* static */ int history_expansion_p; |
920d2a44 | 639 | |
d318976c | 640 | static int write_history_p; |
920d2a44 AC |
641 | static void |
642 | show_write_history_p (struct ui_file *file, int from_tty, | |
643 | struct cmd_list_element *c, const char *value) | |
644 | { | |
645 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
646 | value); | |
647 | } | |
648 | ||
d318976c | 649 | static int history_size; |
920d2a44 AC |
650 | static void |
651 | show_history_size (struct ui_file *file, int from_tty, | |
652 | struct cmd_list_element *c, const char *value) | |
653 | { | |
654 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
655 | value); | |
656 | } | |
657 | ||
d318976c | 658 | static char *history_filename; |
920d2a44 AC |
659 | static void |
660 | show_history_filename (struct ui_file *file, int from_tty, | |
661 | struct cmd_list_element *c, const char *value) | |
662 | { | |
663 | fprintf_filtered (file, _("\ | |
664 | The filename in which to record the command history is \"%s\".\n"), | |
665 | value); | |
666 | } | |
9e0b60a8 | 667 | |
b4f5539f | 668 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 669 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
670 | a single gdb invocation. At the ordinary top-level prompt we might |
671 | be using the async readline. That means we can't use | |
672 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
673 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
674 | `define'), gdb wants a synchronous response. |
675 | ||
676 | We used to call readline() directly, running it in synchronous | |
677 | mode. But mixing modes this way is not supported, and as of | |
678 | readline 5.x it no longer works; the arrow keys come unbound during | |
679 | the synchronous call. So we make a nested call into the event | |
680 | loop. That's what gdb_readline_wrapper is for. */ | |
681 | ||
682 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
683 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
684 | the user types Control-D for EOF. */ | |
685 | static int gdb_readline_wrapper_done; | |
686 | ||
687 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
688 | is seen. */ | |
689 | static char *gdb_readline_wrapper_result; | |
690 | ||
691 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
692 | to be called after the newline is processed (which will redisplay | |
693 | the prompt). But in gdb_readline_wrapper we will not get a new | |
694 | prompt until the next call, or until we return to the event loop. | |
695 | So we disable this hook around the newline and restore it before we | |
696 | return. */ | |
697 | static void (*saved_after_char_processing_hook) (void); | |
698 | ||
699 | /* This function is called when readline has seen a complete line of | |
700 | text. */ | |
701 | ||
702 | static void | |
703 | gdb_readline_wrapper_line (char *line) | |
704 | { | |
705 | gdb_assert (!gdb_readline_wrapper_done); | |
706 | gdb_readline_wrapper_result = line; | |
707 | gdb_readline_wrapper_done = 1; | |
708 | ||
709 | /* Prevent operate-and-get-next from acting too early. */ | |
710 | saved_after_char_processing_hook = after_char_processing_hook; | |
711 | after_char_processing_hook = NULL; | |
1b05479a DJ |
712 | |
713 | /* Prevent parts of the prompt from being redisplayed if annotations | |
714 | are enabled, and readline's state getting out of sync. */ | |
715 | if (async_command_editing_p) | |
716 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
717 | } |
718 | ||
719 | struct gdb_readline_wrapper_cleanup | |
720 | { | |
721 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
722 | int already_prompted_orig; |
723 | }; | |
724 | ||
725 | static void | |
726 | gdb_readline_wrapper_cleanup (void *arg) | |
727 | { | |
728 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
729 | ||
2e03ee74 | 730 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
731 | |
732 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
733 | input_handler = cleanup->handler_orig; | |
734 | gdb_readline_wrapper_result = NULL; | |
735 | gdb_readline_wrapper_done = 0; | |
736 | ||
737 | after_char_processing_hook = saved_after_char_processing_hook; | |
738 | saved_after_char_processing_hook = NULL; | |
739 | ||
740 | xfree (cleanup); | |
741 | } | |
742 | ||
b4f5539f TT |
743 | char * |
744 | gdb_readline_wrapper (char *prompt) | |
745 | { | |
2e03ee74 DJ |
746 | struct cleanup *back_to; |
747 | struct gdb_readline_wrapper_cleanup *cleanup; | |
748 | char *retval; | |
749 | ||
750 | cleanup = xmalloc (sizeof (*cleanup)); | |
751 | cleanup->handler_orig = input_handler; | |
752 | input_handler = gdb_readline_wrapper_line; | |
753 | ||
2e03ee74 DJ |
754 | cleanup->already_prompted_orig = rl_already_prompted; |
755 | ||
756 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
757 | ||
758 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 759 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
760 | rl_already_prompted = 1; |
761 | ||
362646f5 | 762 | if (after_char_processing_hook) |
2e03ee74 DJ |
763 | (*after_char_processing_hook) (); |
764 | gdb_assert (after_char_processing_hook == NULL); | |
765 | ||
766 | /* gdb_do_one_event argument is unused. */ | |
767 | while (gdb_do_one_event (NULL) >= 0) | |
768 | if (gdb_readline_wrapper_done) | |
769 | break; | |
b4f5539f | 770 | |
2e03ee74 DJ |
771 | retval = gdb_readline_wrapper_result; |
772 | do_cleanups (back_to); | |
773 | return retval; | |
b4f5539f TT |
774 | } |
775 | ||
9e0b60a8 | 776 | \f |
d318976c FN |
777 | #ifdef STOP_SIGNAL |
778 | static void | |
779 | stop_sig (int signo) | |
9e0b60a8 | 780 | { |
d318976c FN |
781 | #if STOP_SIGNAL == SIGTSTP |
782 | signal (SIGTSTP, SIG_DFL); | |
46711df8 MK |
783 | #if HAVE_SIGPROCMASK |
784 | { | |
785 | sigset_t zero; | |
786 | ||
787 | sigemptyset (&zero); | |
788 | sigprocmask (SIG_SETMASK, &zero, 0); | |
789 | } | |
790 | #elif HAVE_SIGSETMASK | |
d318976c | 791 | sigsetmask (0); |
46711df8 | 792 | #endif |
d318976c FN |
793 | kill (getpid (), SIGTSTP); |
794 | signal (SIGTSTP, stop_sig); | |
795 | #else | |
796 | signal (STOP_SIGNAL, stop_sig); | |
797 | #endif | |
798 | printf_unfiltered ("%s", get_prompt ()); | |
799 | gdb_flush (gdb_stdout); | |
9e0b60a8 | 800 | |
d318976c FN |
801 | /* Forget about any previous command -- null line now will do nothing. */ |
802 | dont_repeat (); | |
9e0b60a8 | 803 | } |
d318976c | 804 | #endif /* STOP_SIGNAL */ |
9e0b60a8 | 805 | |
d318976c | 806 | /* Initialize signal handlers. */ |
64cdedad EZ |
807 | static void |
808 | float_handler (int signo) | |
809 | { | |
810 | /* This message is based on ANSI C, section 4.7. Note that integer | |
811 | divide by zero causes this, so "float" is a misnomer. */ | |
812 | signal (SIGFPE, float_handler); | |
8a3fe4f8 | 813 | error (_("Erroneous arithmetic operation.")); |
64cdedad EZ |
814 | } |
815 | ||
9e0b60a8 | 816 | static void |
d318976c | 817 | do_nothing (int signo) |
9e0b60a8 | 818 | { |
d318976c FN |
819 | /* Under System V the default disposition of a signal is reinstated after |
820 | the signal is caught and delivered to an application process. On such | |
821 | systems one must restore the replacement signal handler if one wishes | |
822 | to continue handling the signal in one's program. On BSD systems this | |
823 | is not needed but it is harmless, and it simplifies the code to just do | |
824 | it unconditionally. */ | |
825 | signal (signo, do_nothing); | |
9e0b60a8 JM |
826 | } |
827 | ||
467d8519 TT |
828 | /* The current saved history number from operate-and-get-next. |
829 | This is -1 if not valid. */ | |
830 | static int operate_saved_history = -1; | |
831 | ||
832 | /* This is put on the appropriate hook and helps operate-and-get-next | |
833 | do its work. */ | |
b9362cc7 | 834 | static void |
5ae5f592 | 835 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
836 | { |
837 | int delta = where_history () - operate_saved_history; | |
838 | /* The `key' argument to rl_get_previous_history is ignored. */ | |
839 | rl_get_previous_history (delta, 0); | |
840 | operate_saved_history = -1; | |
841 | ||
842 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 843 | rl_redisplay (); |
467d8519 TT |
844 | |
845 | after_char_processing_hook = NULL; | |
846 | rl_pre_input_hook = NULL; | |
847 | } | |
848 | ||
849 | /* This is a gdb-local readline command handler. It accepts the | |
850 | current command line (like RET does) and, if this command was taken | |
851 | from the history, arranges for the next command in the history to | |
852 | appear on the command line when the prompt returns. | |
853 | We ignore the arguments. */ | |
854 | static int | |
855 | gdb_rl_operate_and_get_next (int count, int key) | |
856 | { | |
b5686e99 MK |
857 | int where; |
858 | ||
362646f5 AC |
859 | /* Use the async hook. */ |
860 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 861 | |
b5686e99 MK |
862 | /* Find the current line, and find the next line to use. */ |
863 | where = where_history(); | |
864 | ||
865 | /* FIXME: kettenis/20020817: max_input_history is renamed into | |
866 | history_max_entries in readline-4.2. When we do a new readline | |
867 | import, we should probably change it here too, even though | |
868 | readline maintains backwards compatibility for now by still | |
869 | defining max_input_history. */ | |
870 | if ((history_is_stifled () && (history_length >= max_input_history)) || | |
871 | (where >= history_length - 1)) | |
872 | operate_saved_history = where; | |
873 | else | |
874 | operate_saved_history = where + 1; | |
875 | ||
467d8519 TT |
876 | return rl_newline (1, key); |
877 | } | |
878 | \f | |
d318976c FN |
879 | /* Read one line from the command input stream `instream' |
880 | into the local static buffer `linebuffer' (whose current length | |
881 | is `linelength'). | |
882 | The buffer is made bigger as necessary. | |
883 | Returns the address of the start of the line. | |
9e0b60a8 | 884 | |
d318976c | 885 | NULL is returned for end of file. |
9e0b60a8 | 886 | |
d318976c FN |
887 | *If* the instream == stdin & stdin is a terminal, the line read |
888 | is copied into the file line saver (global var char *line, | |
889 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 890 | |
d318976c FN |
891 | This routine either uses fancy command line editing or |
892 | simple input as the user has requested. */ | |
10689f25 | 893 | |
d318976c FN |
894 | char * |
895 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 896 | { |
d318976c FN |
897 | static char *linebuffer = 0; |
898 | static unsigned linelength = 0; | |
52f0bd74 | 899 | char *p; |
d318976c FN |
900 | char *p1; |
901 | char *rl; | |
902 | char *local_prompt = prompt_arg; | |
903 | char *nline; | |
904 | char got_eof = 0; | |
905 | ||
906 | /* The annotation suffix must be non-NULL. */ | |
907 | if (annotation_suffix == NULL) | |
908 | annotation_suffix = ""; | |
9e0b60a8 | 909 | |
d318976c FN |
910 | if (annotation_level > 1 && instream == stdin) |
911 | { | |
912 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
913 | + strlen (annotation_suffix) + 40); | |
914 | if (prompt_arg == NULL) | |
915 | local_prompt[0] = '\0'; | |
916 | else | |
917 | strcpy (local_prompt, prompt_arg); | |
918 | strcat (local_prompt, "\n\032\032"); | |
919 | strcat (local_prompt, annotation_suffix); | |
920 | strcat (local_prompt, "\n"); | |
921 | } | |
9e0b60a8 | 922 | |
d318976c | 923 | if (linebuffer == 0) |
9e0b60a8 | 924 | { |
d318976c FN |
925 | linelength = 80; |
926 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 927 | } |
9e0b60a8 | 928 | |
d318976c | 929 | p = linebuffer; |
9e0b60a8 | 930 | |
d318976c FN |
931 | /* Control-C quits instantly if typed while in this loop |
932 | since it should not wait until the user types a newline. */ | |
933 | immediate_quit++; | |
934 | #ifdef STOP_SIGNAL | |
935 | if (job_control) | |
362646f5 | 936 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
937 | #endif |
938 | ||
939 | while (1) | |
9e0b60a8 | 940 | { |
d318976c FN |
941 | /* Make sure that all output has been output. Some machines may let |
942 | you get away with leaving out some of the gdb_flush, but not all. */ | |
943 | wrap_here (""); | |
944 | gdb_flush (gdb_stdout); | |
945 | gdb_flush (gdb_stderr); | |
946 | ||
947 | if (source_file_name != NULL) | |
637537d0 | 948 | ++source_line_number; |
d318976c FN |
949 | |
950 | if (annotation_level > 1 && instream == stdin) | |
951 | { | |
306d9ac5 DC |
952 | puts_unfiltered ("\n\032\032pre-"); |
953 | puts_unfiltered (annotation_suffix); | |
954 | puts_unfiltered ("\n"); | |
d318976c FN |
955 | } |
956 | ||
957 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 958 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 959 | { |
9a4105ab | 960 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 961 | } |
698ba934 | 962 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 963 | { |
b4f5539f | 964 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 965 | } |
9e0b60a8 | 966 | else |
d318976c FN |
967 | { |
968 | rl = gdb_readline (local_prompt); | |
969 | } | |
9e0b60a8 | 970 | |
d318976c FN |
971 | if (annotation_level > 1 && instream == stdin) |
972 | { | |
306d9ac5 DC |
973 | puts_unfiltered ("\n\032\032post-"); |
974 | puts_unfiltered (annotation_suffix); | |
975 | puts_unfiltered ("\n"); | |
d318976c | 976 | } |
9e0b60a8 | 977 | |
d318976c | 978 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 979 | { |
d318976c FN |
980 | got_eof = 1; |
981 | break; | |
9e0b60a8 | 982 | } |
d318976c FN |
983 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
984 | { | |
985 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
986 | nline = (char *) xrealloc (linebuffer, linelength); | |
987 | p += nline - linebuffer; | |
988 | linebuffer = nline; | |
989 | } | |
990 | p1 = rl; | |
991 | /* Copy line. Don't copy null at end. (Leaves line alone | |
992 | if this was just a newline) */ | |
993 | while (*p1) | |
994 | *p++ = *p1++; | |
9e0b60a8 | 995 | |
b8c9b27d | 996 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 997 | |
d318976c FN |
998 | if (p == linebuffer || *(p - 1) != '\\') |
999 | break; | |
9e0b60a8 | 1000 | |
d318976c FN |
1001 | p--; /* Put on top of '\'. */ |
1002 | local_prompt = (char *) 0; | |
1003 | } | |
9e0b60a8 | 1004 | |
d318976c FN |
1005 | #ifdef STOP_SIGNAL |
1006 | if (job_control) | |
1007 | signal (STOP_SIGNAL, SIG_DFL); | |
1008 | #endif | |
1009 | immediate_quit--; | |
9e0b60a8 | 1010 | |
d318976c FN |
1011 | if (got_eof) |
1012 | return NULL; | |
9e0b60a8 | 1013 | |
d318976c FN |
1014 | #define SERVER_COMMAND_LENGTH 7 |
1015 | server_command = | |
1016 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 1017 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 1018 | if (server_command) |
9e0b60a8 | 1019 | { |
d318976c FN |
1020 | /* Note that we don't set `line'. Between this and the check in |
1021 | dont_repeat, this insures that repeating will still do the | |
1022 | right thing. */ | |
1023 | *p = '\0'; | |
1024 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1025 | } |
9e0b60a8 | 1026 | |
d318976c FN |
1027 | /* Do history expansion if that is wished. */ |
1028 | if (history_expansion_p && instream == stdin | |
1029 | && ISATTY (instream)) | |
1030 | { | |
1031 | char *history_value; | |
1032 | int expanded; | |
9e0b60a8 | 1033 | |
d318976c FN |
1034 | *p = '\0'; /* Insert null now. */ |
1035 | expanded = history_expand (linebuffer, &history_value); | |
1036 | if (expanded) | |
1037 | { | |
1038 | /* Print the changes. */ | |
1039 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1040 | |
d318976c FN |
1041 | /* If there was an error, call this function again. */ |
1042 | if (expanded < 0) | |
1043 | { | |
b8c9b27d | 1044 | xfree (history_value); |
d318976c FN |
1045 | return command_line_input (prompt_arg, repeat, annotation_suffix); |
1046 | } | |
1047 | if (strlen (history_value) > linelength) | |
1048 | { | |
1049 | linelength = strlen (history_value) + 1; | |
1050 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1051 | } | |
1052 | strcpy (linebuffer, history_value); | |
1053 | p = linebuffer + strlen (linebuffer); | |
d318976c | 1054 | } |
91d2803c | 1055 | xfree (history_value); |
d318976c | 1056 | } |
9e0b60a8 | 1057 | |
d318976c FN |
1058 | /* If we just got an empty line, and that is supposed |
1059 | to repeat the previous command, return the value in the | |
1060 | global buffer. */ | |
1061 | if (repeat && p == linebuffer) | |
1062 | return line; | |
1063 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); | |
1064 | if (repeat && !*p1) | |
1065 | return line; | |
9e0b60a8 | 1066 | |
d318976c | 1067 | *p = 0; |
9e0b60a8 | 1068 | |
d318976c FN |
1069 | /* Add line to history if appropriate. */ |
1070 | if (instream == stdin | |
1071 | && ISATTY (stdin) && *linebuffer) | |
1072 | add_history (linebuffer); | |
9e0b60a8 | 1073 | |
d318976c FN |
1074 | /* Note: lines consisting solely of comments are added to the command |
1075 | history. This is useful when you type a command, and then | |
1076 | realize you don't want to execute it quite yet. You can comment | |
1077 | out the command and then later fetch it from the value history | |
1078 | and remove the '#'. The kill ring is probably better, but some | |
1079 | people are in the habit of commenting things out. */ | |
1080 | if (*p1 == '#') | |
1081 | *p1 = '\0'; /* Found a comment. */ | |
9e0b60a8 | 1082 | |
d318976c FN |
1083 | /* Save into global buffer if appropriate. */ |
1084 | if (repeat) | |
1085 | { | |
1086 | if (linelength > linesize) | |
1087 | { | |
1088 | line = xrealloc (line, linelength); | |
1089 | linesize = linelength; | |
1090 | } | |
1091 | strcpy (line, linebuffer); | |
1092 | return line; | |
1093 | } | |
9e0b60a8 | 1094 | |
d318976c | 1095 | return linebuffer; |
9e0b60a8 JM |
1096 | } |
1097 | \f | |
1098 | /* Print the GDB banner. */ | |
1099 | void | |
fba45db2 | 1100 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1101 | { |
1102 | /* From GNU coding standards, first line is meant to be easy for a | |
1103 | program to parse, and is just canonical program name and version | |
1104 | number, which starts after last space. */ | |
1105 | ||
c16158bc | 1106 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 JM |
1107 | |
1108 | /* Second line is a copyright notice. */ | |
1109 | ||
c9fc347d | 1110 | fprintf_filtered (stream, "Copyright (C) 2009 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1111 | |
1112 | /* Following the copyright is a brief statement that the program is | |
1113 | free software, that users are free to copy and change it on | |
1114 | certain conditions, that it is covered by the GNU GPL, and that | |
1115 | there is no warranty. */ | |
1116 | ||
1117 | fprintf_filtered (stream, "\ | |
b8533aec DJ |
1118 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n\ |
1119 | This is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1120 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1121 | and \"show warranty\" for details.\n"); |
9e0b60a8 JM |
1122 | |
1123 | /* After the required info we print the configuration information. */ | |
1124 | ||
1125 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1126 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 JM |
1127 | { |
1128 | fprintf_filtered (stream, "--host=%s --target=%s", host_name, target_name); | |
1129 | } | |
1130 | else | |
1131 | { | |
1132 | fprintf_filtered (stream, "%s", host_name); | |
1133 | } | |
1134 | fprintf_filtered (stream, "\"."); | |
c16158bc JM |
1135 | |
1136 | if (REPORT_BUGS_TO[0]) | |
1137 | { | |
1138 | fprintf_filtered (stream, | |
1139 | _("\nFor bug reporting instructions, please see:\n")); | |
7949220d | 1140 | fprintf_filtered (stream, "%s.", REPORT_BUGS_TO); |
c16158bc | 1141 | } |
9e0b60a8 | 1142 | } |
9e0b60a8 JM |
1143 | \f |
1144 | /* get_prompt: access method for the GDB prompt string. */ | |
1145 | ||
9e0b60a8 | 1146 | char * |
fba45db2 | 1147 | get_prompt (void) |
9e0b60a8 | 1148 | { |
362646f5 | 1149 | return PROMPT (0); |
9e0b60a8 JM |
1150 | } |
1151 | ||
1152 | void | |
fba45db2 | 1153 | set_prompt (char *s) |
9e0b60a8 JM |
1154 | { |
1155 | /* ??rehrauer: I don't know why this fails, since it looks as though | |
1156 | assignments to prompt are wrapped in calls to savestring... | |
c5aa993b | 1157 | if (prompt != NULL) |
b8c9b27d | 1158 | xfree (prompt); |
c5aa993b | 1159 | */ |
362646f5 | 1160 | PROMPT (0) = savestring (s, strlen (s)); |
9e0b60a8 | 1161 | } |
9e0b60a8 | 1162 | \f |
c5aa993b | 1163 | |
9e0b60a8 JM |
1164 | /* If necessary, make the user confirm that we should quit. Return |
1165 | non-zero if we should quit, zero if we shouldn't. */ | |
1166 | ||
1167 | int | |
fba45db2 | 1168 | quit_confirm (void) |
9e0b60a8 | 1169 | { |
39f77062 | 1170 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
9e0b60a8 JM |
1171 | { |
1172 | char *s; | |
181e7f93 | 1173 | struct inferior *inf = current_inferior (); |
9e0b60a8 JM |
1174 | |
1175 | /* This is something of a hack. But there's no reliable way to | |
c5aa993b JM |
1176 | see if a GUI is running. The `use_windows' variable doesn't |
1177 | cut it. */ | |
9a4105ab | 1178 | if (deprecated_init_ui_hook) |
9e2f0ad4 | 1179 | s = _("A debugging session is active.\nDo you still want to close the debugger?"); |
181e7f93 | 1180 | else if (inf->attach_flag) |
9e2f0ad4 | 1181 | s = _("The program is running. Quit anyway (and detach it)? "); |
9e0b60a8 | 1182 | else |
9e2f0ad4 | 1183 | s = _("The program is running. Quit anyway (and kill it)? "); |
9e0b60a8 | 1184 | |
306d9ac5 | 1185 | if (!query ("%s", s)) |
9e0b60a8 JM |
1186 | return 0; |
1187 | } | |
1188 | ||
1189 | return 1; | |
1190 | } | |
1191 | ||
b0abbc58 | 1192 | struct qt_args |
9e0b60a8 | 1193 | { |
b0abbc58 JJ |
1194 | char *args; |
1195 | int from_tty; | |
1196 | }; | |
9e0b60a8 | 1197 | |
54a012c9 PA |
1198 | /* Callback for iterate_over_threads. Finds any thread of inferior |
1199 | given by ARG (really an int*). */ | |
1200 | ||
b0abbc58 | 1201 | static int |
54a012c9 | 1202 | any_thread_of (struct thread_info *thread, void *arg) |
b0abbc58 | 1203 | { |
54a012c9 | 1204 | int pid = * (int *)arg; |
9e0b60a8 | 1205 | |
54a012c9 PA |
1206 | if (PIDGET (thread->ptid) == pid) |
1207 | return 1; | |
1208 | ||
1209 | return 0; | |
1210 | } | |
1211 | ||
1212 | /* Callback for iterate_over_inferiors. Kills or detaches the given | |
1213 | inferior, depending on how we originally gained control of it. */ | |
1214 | ||
1215 | static int | |
1216 | kill_or_detach (struct inferior *inf, void *args) | |
1217 | { | |
1218 | struct qt_args *qt = args; | |
1219 | struct thread_info *thread; | |
1220 | ||
1221 | thread = iterate_over_threads (any_thread_of, &inf->pid); | |
1222 | if (thread) | |
9e0b60a8 | 1223 | { |
54a012c9 | 1224 | switch_to_thread (thread->ptid); |
181e7f93 | 1225 | if (inf->attach_flag) |
54a012c9 | 1226 | target_detach (qt->args, qt->from_tty); |
9e0b60a8 | 1227 | else |
54a012c9 | 1228 | target_kill (); |
9e0b60a8 JM |
1229 | } |
1230 | ||
54a012c9 PA |
1231 | return 0; |
1232 | } | |
1233 | ||
1234 | /* Helper routine for quit_force that requires error handling. */ | |
1235 | ||
1236 | static int | |
1237 | quit_target (void *arg) | |
1238 | { | |
1239 | struct qt_args *qt = (struct qt_args *)arg; | |
1240 | ||
1241 | /* Kill or detach all inferiors. */ | |
6aa8e5c2 PA |
1242 | if (target_has_execution) |
1243 | iterate_over_inferiors (kill_or_detach, qt); | |
54a012c9 | 1244 | |
aa76d38d PA |
1245 | /* Give all pushed targets a chance to do minimal cleanup, and pop |
1246 | them all out. */ | |
1247 | pop_all_targets (1); | |
9e0b60a8 JM |
1248 | |
1249 | /* Save the history information if it is appropriate to do so. */ | |
1250 | if (write_history_p && history_filename) | |
1251 | write_history (history_filename); | |
1252 | ||
c5aa993b | 1253 | do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before exiting */ |
9e0b60a8 | 1254 | |
b0abbc58 JJ |
1255 | return 0; |
1256 | } | |
1257 | ||
1258 | /* Quit without asking for confirmation. */ | |
1259 | ||
1260 | void | |
1261 | quit_force (char *args, int from_tty) | |
1262 | { | |
1263 | int exit_code = 0; | |
365c70b1 | 1264 | struct qt_args qt; |
b0abbc58 JJ |
1265 | |
1266 | /* An optional expression may be used to cause gdb to terminate with the | |
1267 | value of that expression. */ | |
1268 | if (args) | |
1269 | { | |
1270 | struct value *val = parse_and_eval (args); | |
1271 | ||
1272 | exit_code = (int) value_as_long (val); | |
1273 | } | |
4b0ad762 AS |
1274 | else if (return_child_result) |
1275 | exit_code = return_child_result_value; | |
b0abbc58 | 1276 | |
365c70b1 JJ |
1277 | qt.args = args; |
1278 | qt.from_tty = from_tty; | |
1279 | ||
b0abbc58 | 1280 | /* We want to handle any quit errors and exit regardless. */ |
365c70b1 | 1281 | catch_errors (quit_target, &qt, |
b0abbc58 JJ |
1282 | "Quitting: ", RETURN_MASK_ALL); |
1283 | ||
9e0b60a8 JM |
1284 | exit (exit_code); |
1285 | } | |
1286 | ||
698ba934 DJ |
1287 | /* Returns whether GDB is running on a terminal and input is |
1288 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1289 | |
1290 | int | |
fba45db2 | 1291 | input_from_terminal_p (void) |
9e0b60a8 | 1292 | { |
698ba934 DJ |
1293 | if (gdb_has_a_terminal () && instream == stdin) |
1294 | return 1; | |
1295 | ||
1296 | /* If INSTREAM is unset, and we are not in a user command, we | |
1297 | must be in Insight. That's like having a terminal, for our | |
1298 | purposes. */ | |
1299 | if (instream == NULL && !in_user_command) | |
1300 | return 1; | |
1301 | ||
1302 | return 0; | |
9e0b60a8 JM |
1303 | } |
1304 | \f | |
9e0b60a8 | 1305 | static void |
fba45db2 | 1306 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1307 | { |
c5aa993b JM |
1308 | *line = 0; /* Can't call dont_repeat here because we're not |
1309 | necessarily reading from stdin. */ | |
9e0b60a8 JM |
1310 | } |
1311 | \f | |
1312 | /* Functions to manipulate command line editing control variables. */ | |
1313 | ||
1314 | /* Number of commands to print in each call to show_commands. */ | |
1315 | #define Hist_print 10 | |
d318976c | 1316 | void |
fba45db2 | 1317 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1318 | { |
1319 | /* Index for history commands. Relative to history_base. */ | |
1320 | int offset; | |
1321 | ||
1322 | /* Number of the history entry which we are planning to display next. | |
1323 | Relative to history_base. */ | |
1324 | static int num = 0; | |
1325 | ||
1326 | /* The first command in the history which doesn't exist (i.e. one more | |
1327 | than the number of the last command). Relative to history_base. */ | |
1328 | int hist_len; | |
1329 | ||
9e0b60a8 JM |
1330 | /* Print out some of the commands from the command history. */ |
1331 | /* First determine the length of the history list. */ | |
1332 | hist_len = history_size; | |
1333 | for (offset = 0; offset < history_size; offset++) | |
1334 | { | |
1335 | if (!history_get (history_base + offset)) | |
1336 | { | |
1337 | hist_len = offset; | |
1338 | break; | |
1339 | } | |
1340 | } | |
1341 | ||
1342 | if (args) | |
1343 | { | |
1344 | if (args[0] == '+' && args[1] == '\0') | |
1345 | /* "info editing +" should print from the stored position. */ | |
1346 | ; | |
1347 | else | |
1348 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1349 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1350 | } |
1351 | /* "show commands" means print the last Hist_print commands. */ | |
1352 | else | |
1353 | { | |
1354 | num = hist_len - Hist_print; | |
1355 | } | |
1356 | ||
1357 | if (num < 0) | |
1358 | num = 0; | |
1359 | ||
1360 | /* If there are at least Hist_print commands, we want to display the last | |
1361 | Hist_print rather than, say, the last 6. */ | |
1362 | if (hist_len - num < Hist_print) | |
1363 | { | |
1364 | num = hist_len - Hist_print; | |
1365 | if (num < 0) | |
1366 | num = 0; | |
1367 | } | |
1368 | ||
1369 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1370 | { | |
1371 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1372 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1373 | } |
1374 | ||
1375 | /* The next command we want to display is the next one that we haven't | |
1376 | displayed yet. */ | |
1377 | num += Hist_print; | |
1378 | ||
1379 | /* If the user repeats this command with return, it should do what | |
1380 | "show commands +" does. This is unnecessary if arg is null, | |
1381 | because "show commands +" is not useful after "show commands". */ | |
1382 | if (from_tty && args) | |
1383 | { | |
1384 | args[0] = '+'; | |
1385 | args[1] = '\0'; | |
1386 | } | |
1387 | } | |
1388 | ||
1389 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1390 | static void |
fba45db2 | 1391 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1392 | { |
1393 | if (history_size == INT_MAX) | |
1394 | unstifle_history (); | |
1395 | else if (history_size >= 0) | |
1396 | stifle_history (history_size); | |
1397 | else | |
1398 | { | |
1399 | history_size = INT_MAX; | |
8a3fe4f8 | 1400 | error (_("History size must be non-negative")); |
9e0b60a8 JM |
1401 | } |
1402 | } | |
1403 | ||
d318976c | 1404 | void |
fba45db2 | 1405 | set_history (char *args, int from_tty) |
9e0b60a8 | 1406 | { |
a3f17187 | 1407 | printf_unfiltered (_("\"set history\" must be followed by the name of a history subcommand.\n")); |
9e0b60a8 JM |
1408 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1409 | } | |
1410 | ||
d318976c | 1411 | void |
fba45db2 | 1412 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1413 | { |
1414 | cmd_show_list (showhistlist, from_tty, ""); | |
1415 | } | |
1416 | ||
1417 | int info_verbose = 0; /* Default verbose msgs off */ | |
1418 | ||
1419 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1420 | void |
fba45db2 | 1421 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1422 | { |
1423 | char *cmdname = "verbose"; | |
1424 | struct cmd_list_element *showcmd; | |
1425 | ||
1426 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427 | ||
1428 | if (info_verbose) | |
1429 | { | |
1430 | c->doc = "Set verbose printing of informational messages."; | |
1431 | showcmd->doc = "Show verbose printing of informational messages."; | |
1432 | } | |
1433 | else | |
1434 | { | |
1435 | c->doc = "Set verbosity."; | |
1436 | showcmd->doc = "Show verbosity."; | |
1437 | } | |
1438 | } | |
1439 | ||
9e0b60a8 JM |
1440 | /* Init the history buffer. Note that we are called after the init file(s) |
1441 | * have been read so that the user can change the history file via his | |
1442 | * .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1443 | * overrides all of this. | |
1444 | */ | |
1445 | ||
1446 | void | |
fba45db2 | 1447 | init_history (void) |
9e0b60a8 JM |
1448 | { |
1449 | char *tmpenv; | |
1450 | ||
1451 | tmpenv = getenv ("HISTSIZE"); | |
1452 | if (tmpenv) | |
1453 | history_size = atoi (tmpenv); | |
1454 | else if (!history_size) | |
1455 | history_size = 256; | |
1456 | ||
1457 | stifle_history (history_size); | |
1458 | ||
1459 | tmpenv = getenv ("GDBHISTFILE"); | |
1460 | if (tmpenv) | |
c5aa993b JM |
1461 | history_filename = savestring (tmpenv, strlen (tmpenv)); |
1462 | else if (!history_filename) | |
1463 | { | |
1464 | /* We include the current directory so that if the user changes | |
1465 | directories the file written will be the same as the one | |
1466 | that was read. */ | |
a0b3c4fd | 1467 | #ifdef __MSDOS__ |
eb2f494a | 1468 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1469 | history_filename = concat (current_directory, "/_gdb_history", |
1470 | (char *)NULL); | |
a0b3c4fd | 1471 | #else |
1754f103 MK |
1472 | history_filename = concat (current_directory, "/.gdb_history", |
1473 | (char *)NULL); | |
a0b3c4fd | 1474 | #endif |
c5aa993b | 1475 | } |
9e0b60a8 JM |
1476 | read_history (history_filename); |
1477 | } | |
1478 | ||
920d2a44 AC |
1479 | static void |
1480 | show_new_async_prompt (struct ui_file *file, int from_tty, | |
1481 | struct cmd_list_element *c, const char *value) | |
1482 | { | |
1483 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1484 | } | |
1485 | ||
1486 | static void | |
1487 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1488 | struct cmd_list_element *c, const char *value) | |
1489 | { | |
1490 | fprintf_filtered (file, _("\ | |
1491 | Editing of command lines as they are typed is %s.\n"), | |
1492 | value); | |
1493 | } | |
1494 | ||
1495 | static void | |
1496 | show_annotation_level (struct ui_file *file, int from_tty, | |
1497 | struct cmd_list_element *c, const char *value) | |
1498 | { | |
1499 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1500 | } | |
1501 | ||
1502 | static void | |
1503 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1504 | struct cmd_list_element *c, const char *value) | |
1505 | { | |
1506 | fprintf_filtered (file, _("\ | |
1507 | Notification of completion for asynchronous execution commands is %s.\n"), | |
1508 | value); | |
1509 | } | |
9e0b60a8 | 1510 | static void |
fba45db2 | 1511 | init_main (void) |
9e0b60a8 JM |
1512 | { |
1513 | struct cmd_list_element *c; | |
1514 | ||
362646f5 AC |
1515 | /* initialize the prompt stack to a simple "(gdb) " prompt or to |
1516 | whatever the DEFAULT_PROMPT is. */ | |
1517 | the_prompts.top = 0; | |
1518 | PREFIX (0) = ""; | |
1519 | PROMPT (0) = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT)); | |
1520 | SUFFIX (0) = ""; | |
1521 | /* Set things up for annotation_level > 1, if the user ever decides | |
1522 | to use it. */ | |
1523 | async_annotation_suffix = "prompt"; | |
1524 | /* Set the variable associated with the setshow prompt command. */ | |
1525 | new_async_prompt = savestring (PROMPT (0), strlen (PROMPT (0))); | |
1526 | ||
1527 | /* If gdb was started with --annotate=2, this is equivalent to the | |
1528 | user entering the command 'set annotate 2' at the gdb prompt, so | |
1529 | we need to do extra processing. */ | |
1530 | if (annotation_level > 1) | |
1531 | set_async_annotation_level (NULL, 0, NULL); | |
9e0b60a8 JM |
1532 | |
1533 | /* Set the important stuff up for command editing. */ | |
1534 | command_editing_p = 1; | |
9e0b60a8 JM |
1535 | history_expansion_p = 0; |
1536 | write_history_p = 0; | |
1537 | ||
1538 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 1539 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
38017ce8 | 1540 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1541 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1542 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1543 | rl_readline_name = "gdb"; |
7cb3ec5e | 1544 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1545 | |
467d8519 TT |
1546 | /* The name for this defun comes from Bash, where it originated. |
1547 | 15 is Control-o, the same binding this function has in Bash. */ | |
1548 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1549 | ||
4d28ad1e AC |
1550 | add_setshow_string_cmd ("prompt", class_support, |
1551 | &new_async_prompt, _("\ | |
1552 | Set gdb's prompt"), _("\ | |
1553 | Show gdb's prompt"), NULL, | |
1554 | set_async_prompt, | |
920d2a44 | 1555 | show_new_async_prompt, |
4d28ad1e | 1556 | &setlist, &showlist); |
9e0b60a8 | 1557 | |
1bedd215 AC |
1558 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
1559 | Don't repeat this command.\n\ | |
9e0b60a8 | 1560 | Primarily used inside of user-defined commands that should not be repeated when\n\ |
1bedd215 | 1561 | hitting return.")); |
9e0b60a8 | 1562 | |
5bf193a2 AC |
1563 | add_setshow_boolean_cmd ("editing", class_support, |
1564 | &async_command_editing_p, _("\ | |
1565 | Set editing of command lines as they are typed."), _("\ | |
1566 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1567 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1568 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1569 | EMACS-like or VI-like commands like control-P or ESC."), |
1570 | set_async_editing_command, | |
920d2a44 | 1571 | show_async_command_editing_p, |
5bf193a2 AC |
1572 | &setlist, &showlist); |
1573 | ||
1574 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1575 | Set saving of the history record on exit."), _("\ | |
1576 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1577 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1578 | Without an argument, saving is enabled."), |
1579 | NULL, | |
920d2a44 | 1580 | show_write_history_p, |
5bf193a2 | 1581 | &sethistlist, &showhistlist); |
9e0b60a8 | 1582 | |
4d28ad1e AC |
1583 | add_setshow_integer_cmd ("size", no_class, &history_size, _("\ |
1584 | Set the size of the command history,"), _("\ | |
1585 | Show the size of the command history,"), _("\ | |
1586 | ie. the number of previous commands to keep a record of."), | |
1587 | set_history_size_command, | |
920d2a44 | 1588 | show_history_size, |
4d28ad1e AC |
1589 | &sethistlist, &showhistlist); |
1590 | ||
1591 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1592 | Set the filename in which to record the command history"), _("\ | |
1593 | Show the filename in which to record the command history"), _("\ | |
1594 | (the list of previous commands of which a record is kept)."), | |
1595 | NULL, | |
920d2a44 | 1596 | show_history_filename, |
4d28ad1e | 1597 | &sethistlist, &showhistlist); |
9e0b60a8 | 1598 | |
5bf193a2 AC |
1599 | add_setshow_boolean_cmd ("confirm", class_support, &caution, _("\ |
1600 | Set whether to confirm potentially dangerous operations."), _("\ | |
1601 | Show whether to confirm potentially dangerous operations."), NULL, | |
1602 | NULL, | |
920d2a44 | 1603 | show_caution, |
5bf193a2 | 1604 | &setlist, &showlist); |
9e0b60a8 | 1605 | |
85c07804 AC |
1606 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1607 | Set annotation_level."), _("\ | |
1608 | Show annotation_level."), _("\ | |
9e0b60a8 | 1609 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 AC |
1610 | 2 == output annotated suitably for use by programs that control GDB."), |
1611 | set_async_annotation_level, | |
920d2a44 | 1612 | show_annotation_level, |
85c07804 | 1613 | &setlist, &showlist); |
362646f5 | 1614 | |
5bf193a2 AC |
1615 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1616 | &exec_done_display_p, _("\ | |
1617 | Set notification of completion for asynchronous execution commands."), _("\ | |
1618 | Show notification of completion for asynchronous execution commands."), _("\ | |
1619 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1620 | NULL, | |
920d2a44 | 1621 | show_exec_done_display_p, |
5bf193a2 | 1622 | &setlist, &showlist); |
b14b1491 TT |
1623 | |
1624 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
1625 | &gdb_datadir, _("Set GDB's data directory."), | |
1626 | _("Show GDB's data directory."), | |
1627 | _("\ | |
1628 | When set, GDB uses the specified path to search for data files."), | |
1629 | NULL, NULL, | |
1630 | &setlist, | |
1631 | &showlist); | |
9e0b60a8 | 1632 | } |
64cdedad EZ |
1633 | |
1634 | void | |
1635 | gdb_init (char *argv0) | |
1636 | { | |
1637 | if (pre_init_ui_hook) | |
1638 | pre_init_ui_hook (); | |
1639 | ||
1640 | /* Run the init function of each source file */ | |
1641 | ||
64cdedad EZ |
1642 | #ifdef __MSDOS__ |
1643 | /* Make sure we return to the original directory upon exit, come | |
1644 | what may, since the OS doesn't do that for us. */ | |
1645 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1646 | #endif | |
1647 | ||
1648 | init_cmd_lists (); /* This needs to be done first */ | |
1649 | initialize_targets (); /* Setup target_terminal macros for utils.c */ | |
1650 | initialize_utils (); /* Make errors and warnings possible */ | |
1651 | initialize_all_files (); | |
1652 | initialize_current_architecture (); | |
1653 | init_cli_cmds(); | |
1654 | init_main (); /* But that omits this file! Do it now */ | |
1655 | ||
0ea3f30e DJ |
1656 | initialize_stdin_serial (); |
1657 | ||
362646f5 | 1658 | async_init_signals (); |
64cdedad EZ |
1659 | |
1660 | /* We need a default language for parsing expressions, so simple things like | |
1661 | "set width 0" won't fail if no language is explicitly set in a config file | |
1662 | or implicitly set by reading an executable during startup. */ | |
1663 | set_language (language_c); | |
1664 | expected_language = current_language; /* don't warn about the change. */ | |
1665 | ||
9a4105ab AC |
1666 | /* Allow another UI to initialize. If the UI fails to initialize, |
1667 | and it wants GDB to revert to the CLI, it should clear | |
1668 | deprecated_init_ui_hook. */ | |
1669 | if (deprecated_init_ui_hook) | |
1670 | deprecated_init_ui_hook (argv0); | |
64cdedad | 1671 | } |