Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 DJ |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
5 | 2008 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 | ||
135 | /* gdb prints this when reading a command interactively */ | |
c5aa993b | 136 | static char *gdb_prompt_string; /* the global prompt string */ |
c906108c SS |
137 | |
138 | /* Buffer used for reading command lines, and the size | |
139 | allocated for it so far. */ | |
140 | ||
141 | char *line; | |
142 | int linesize = 100; | |
143 | ||
144 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 145 | affects things like recording into the command history, commands |
c906108c SS |
146 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
147 | whatever) can issue its own commands and also send along commands | |
148 | from the user, and have the user not notice that the user interface | |
149 | is issuing commands too. */ | |
150 | int server_command; | |
151 | ||
152 | /* Baud rate specified for talking to serial target systems. Default | |
153 | is left as -1, so targets can choose their own defaults. */ | |
154 | /* FIXME: This means that "show remotebaud" and gr_files_info can print -1 | |
155 | or (unsigned int)-1. This is a Bad User Interface. */ | |
156 | ||
157 | int baud_rate = -1; | |
158 | ||
159 | /* Timeout limit for response from target. */ | |
160 | ||
ce808e91 AC |
161 | /* The default value has been changed many times over the years. It |
162 | was originally 5 seconds. But that was thought to be a long time | |
163 | to sit and wait, so it was changed to 2 seconds. That was thought | |
164 | to be plenty unless the connection was going through some terminal | |
165 | server or multiplexer or other form of hairy serial connection. | |
166 | ||
167 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
168 | it began being used in other remote-* targets. It appears that the | |
169 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 170 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
171 | |
172 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
173 | 20 seconds is far worse. This demonstrates the difficulty of using | |
174 | a single variable for all protocol timeouts. | |
175 | ||
176 | As remote.c is used much more than remote-e7000.c, it was changed | |
177 | back to 2 seconds in 1999. */ | |
178 | ||
179 | int remote_timeout = 2; | |
c906108c SS |
180 | |
181 | /* Non-zero tells remote* modules to output debugging info. */ | |
182 | ||
183 | int remote_debug = 0; | |
184 | ||
6dd77b81 RH |
185 | /* Sbrk location on entry to main. Used for statistics only. */ |
186 | #ifdef HAVE_SBRK | |
187 | char *lim_at_start; | |
188 | #endif | |
189 | ||
c906108c SS |
190 | /* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT. */ |
191 | ||
192 | #ifndef STOP_SIGNAL | |
193 | #ifdef SIGTSTP | |
194 | #define STOP_SIGNAL SIGTSTP | |
a14ed312 | 195 | static void stop_sig (int); |
c906108c SS |
196 | #endif |
197 | #endif | |
198 | ||
c906108c SS |
199 | /* Hooks for alternate command interfaces. */ |
200 | ||
201 | /* Called after most modules have been initialized, but before taking users | |
1ad24239 KS |
202 | command file. |
203 | ||
204 | If the UI fails to initialize and it wants GDB to continue | |
205 | using the default UI, then it should clear this hook before returning. */ | |
c906108c | 206 | |
9a4105ab | 207 | void (*deprecated_init_ui_hook) (char *argv0); |
7a292a7a SS |
208 | |
209 | /* This hook is called from within gdb's many mini-event loops which could | |
210 | steal control from a real user interface's event loop. It returns | |
211 | non-zero if the user is requesting a detach, zero otherwise. */ | |
212 | ||
98bbd631 | 213 | int (*deprecated_ui_loop_hook) (int); |
c906108c SS |
214 | |
215 | /* Called instead of command_loop at top level. Can be invoked via | |
b5a2688f | 216 | throw_exception(). */ |
c906108c | 217 | |
9a4105ab | 218 | void (*deprecated_command_loop_hook) (void); |
c906108c SS |
219 | |
220 | ||
c906108c SS |
221 | /* Called from print_frame_info to list the line we stopped in. */ |
222 | ||
9a4105ab AC |
223 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, int line, |
224 | int stopline, int noerror); | |
c906108c SS |
225 | /* Replaces most of query. */ |
226 | ||
9a4105ab | 227 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
228 | |
229 | /* Replaces most of warning. */ | |
230 | ||
9a4105ab | 231 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 232 | |
9a4105ab AC |
233 | /* These three functions support getting lines of text from the user. |
234 | They are used in sequence. First deprecated_readline_begin_hook is | |
235 | called with a text string that might be (for example) a message for | |
236 | the user to type in a sequence of commands to be executed at a | |
237 | breakpoint. If this function calls back to a GUI, it might take | |
238 | this opportunity to pop up a text interaction window with this | |
239 | message. Next, deprecated_readline_hook is called with a prompt | |
240 | that is emitted prior to collecting the user input. It can be | |
241 | called multiple times. Finally, deprecated_readline_end_hook is | |
242 | called to notify the GUI that we are done with the interaction | |
243 | window and it can close it. */ | |
c906108c | 244 | |
9a4105ab AC |
245 | void (*deprecated_readline_begin_hook) (char *, ...); |
246 | char *(*deprecated_readline_hook) (char *); | |
247 | void (*deprecated_readline_end_hook) (void); | |
c906108c SS |
248 | |
249 | /* Called as appropriate to notify the interface of the specified breakpoint | |
250 | conditions. */ | |
251 | ||
9a4105ab AC |
252 | void (*deprecated_create_breakpoint_hook) (struct breakpoint * bpt); |
253 | void (*deprecated_delete_breakpoint_hook) (struct breakpoint * bpt); | |
254 | void (*deprecated_modify_breakpoint_hook) (struct breakpoint * bpt); | |
c906108c | 255 | |
6426a772 JM |
256 | /* Called as appropriate to notify the interface that we have attached |
257 | to or detached from an already running process. */ | |
258 | ||
9a4105ab AC |
259 | void (*deprecated_attach_hook) (void); |
260 | void (*deprecated_detach_hook) (void); | |
6426a772 | 261 | |
c906108c SS |
262 | /* Called during long calculations to allow GUI to repair window damage, and to |
263 | check for stop buttons, etc... */ | |
264 | ||
9a4105ab | 265 | void (*deprecated_interactive_hook) (void); |
c906108c | 266 | |
c906108c SS |
267 | /* Tell the GUI someone changed the register REGNO. -1 means |
268 | that the caller does not know which register changed or | |
c5aa993b | 269 | that several registers have changed (see value_assign). */ |
9a4105ab | 270 | void (*deprecated_register_changed_hook) (int regno); |
c906108c SS |
271 | |
272 | /* Tell the GUI someone changed LEN bytes of memory at ADDR */ | |
9a4105ab | 273 | void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len); |
c906108c SS |
274 | |
275 | /* Called when going to wait for the target. Usually allows the GUI to run | |
276 | while waiting for target events. */ | |
277 | ||
9a4105ab AC |
278 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
279 | struct target_waitstatus * status); | |
c906108c SS |
280 | |
281 | /* Used by UI as a wrapper around command execution. May do various things | |
282 | like enabling/disabling buttons, etc... */ | |
283 | ||
9a4105ab AC |
284 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, char *cmd, |
285 | int from_tty); | |
c906108c | 286 | |
96baa820 JM |
287 | /* Called after a `set' command has finished. Is only run if the |
288 | `set' command succeeded. */ | |
289 | ||
9a4105ab | 290 | void (*deprecated_set_hook) (struct cmd_list_element * c); |
96baa820 | 291 | |
c906108c SS |
292 | /* Called when the current thread changes. Argument is thread id. */ |
293 | ||
9a4105ab | 294 | void (*deprecated_context_hook) (int id); |
c906108c SS |
295 | |
296 | /* Takes control from error (). Typically used to prevent longjmps out of the | |
297 | middle of the GUI. Usually used in conjunction with a catch routine. */ | |
298 | ||
c40d0d10 | 299 | void (*deprecated_error_hook) (void); |
11cf8741 | 300 | |
c906108c SS |
301 | /* Handler for SIGHUP. */ |
302 | ||
303 | #ifdef SIGHUP | |
392a587b | 304 | /* NOTE 1999-04-29: This function 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 | |
d0c8cdfb | 308 | quit_cover (void *s) |
c906108c | 309 | { |
c5aa993b JM |
310 | caution = 0; /* Throw caution to the wind -- we're exiting. |
311 | This prevents asking the user dumb questions. */ | |
312 | quit_command ((char *) 0, 0); | |
c906108c SS |
313 | return 0; |
314 | } | |
315 | #endif /* defined SIGHUP */ | |
316 | \f | |
317 | /* Line number we are currently in in a file which is being sourced. */ | |
392a587b | 318 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
319 | gdb to use the event loop as the default command loop and we merge |
320 | event-top.c into this file, top.c */ | |
321 | /* static */ int source_line_number; | |
c906108c SS |
322 | |
323 | /* Name of the file we are sourcing. */ | |
392a587b | 324 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
325 | gdb to use the event loop as the default command loop and we merge |
326 | event-top.c into this file, top.c */ | |
327 | /* static */ char *source_file_name; | |
c906108c | 328 | |
c906108c SS |
329 | /* Clean up on error during a "source" command (or execution of a |
330 | user-defined command). */ | |
331 | ||
d318976c | 332 | void |
e41a3b1a | 333 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
334 | { |
335 | /* Restore the previous input stream. */ | |
336 | instream = stream; | |
337 | } | |
338 | ||
339 | /* Read commands from STREAM. */ | |
340 | void | |
fba45db2 | 341 | read_command_file (FILE *stream) |
c906108c SS |
342 | { |
343 | struct cleanup *cleanups; | |
344 | ||
e41a3b1a | 345 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 346 | instream = stream; |
c5aa993b | 347 | command_loop (); |
c906108c SS |
348 | do_cleanups (cleanups); |
349 | } | |
350 | \f | |
507f3c78 | 351 | void (*pre_init_ui_hook) (void); |
c906108c | 352 | |
e41a3b1a AC |
353 | #ifdef __MSDOS__ |
354 | void | |
355 | do_chdir_cleanup (void *old_dir) | |
356 | { | |
357 | chdir (old_dir); | |
b8c9b27d | 358 | xfree (old_dir); |
e41a3b1a AC |
359 | } |
360 | #endif | |
361 | ||
d318976c FN |
362 | /* Execute the line P as a command. |
363 | Pass FROM_TTY as second argument to the defining function. */ | |
c906108c | 364 | |
4f8d22e3 PA |
365 | /* Execute command P, in the current user context. */ |
366 | ||
d318976c FN |
367 | void |
368 | execute_command (char *p, int from_tty) | |
c906108c | 369 | { |
52f0bd74 AC |
370 | struct cmd_list_element *c; |
371 | enum language flang; | |
d318976c FN |
372 | static int warned = 0; |
373 | char *line; | |
2f77b315 | 374 | long time_at_cmd_start = 0; |
32c1e744 VP |
375 | #ifdef HAVE_SBRK |
376 | long space_at_cmd_start = 0; | |
377 | #endif | |
378 | extern int display_time; | |
379 | extern int display_space; | |
380 | ||
381 | if (target_can_async_p ()) | |
382 | { | |
383 | time_at_cmd_start = get_run_time (); | |
384 | ||
385 | if (display_space) | |
386 | { | |
387 | #ifdef HAVE_SBRK | |
388 | char *lim = (char *) sbrk (0); | |
389 | space_at_cmd_start = lim - lim_at_start; | |
390 | #endif | |
391 | } | |
392 | } | |
67e1e03a | 393 | |
d318976c | 394 | free_all_values (); |
c906108c | 395 | |
d318976c FN |
396 | /* Force cleanup of any alloca areas if using C alloca instead of |
397 | a builtin alloca. */ | |
398 | alloca (0); | |
c906108c | 399 | |
d318976c FN |
400 | /* This can happen when command_line_input hits end of file. */ |
401 | if (p == NULL) | |
402 | return; | |
c906108c | 403 | |
49d03eab | 404 | target_log_command (p); |
8b93c638 | 405 | |
d318976c FN |
406 | while (*p == ' ' || *p == '\t') |
407 | p++; | |
408 | if (*p) | |
8b93c638 | 409 | { |
d318976c FN |
410 | char *arg; |
411 | line = p; | |
8b93c638 | 412 | |
16026cd7 AS |
413 | /* If trace-commands is set then this will print this command. */ |
414 | print_command_trace (p); | |
415 | ||
d318976c | 416 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 417 | |
4f8d22e3 PA |
418 | /* If the selected thread has terminated, we allow only a |
419 | limited set of commands. */ | |
8ea051c5 | 420 | if (target_can_async_p () |
4f8d22e3 PA |
421 | && is_exited (inferior_ptid) |
422 | && !get_cmd_no_selected_thread_ok (c)) | |
423 | error (_("\ | |
424 | Cannot execute this command without a live selected thread. See `help thread'.")); | |
8b93c638 | 425 | |
d318976c FN |
426 | /* Pass null arg rather than an empty one. */ |
427 | arg = *p ? p : 0; | |
8b93c638 | 428 | |
9f60d481 AC |
429 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
430 | while the is_complete_command(cfunc) test is just plain | |
431 | bogus. They should both be replaced by a test of the form | |
432 | c->strip_trailing_white_space_p. */ | |
433 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
434 | can't be replaced with func. This is because it is the | |
435 | cfunc, and not the func, that has the value that the | |
436 | is_complete_command hack is testing for. */ | |
437 | /* Clear off trailing whitespace, except for set and complete | |
438 | command. */ | |
d318976c FN |
439 | if (arg |
440 | && c->type != set_cmd | |
bbaca940 | 441 | && !is_complete_command (c)) |
8b93c638 | 442 | { |
d318976c FN |
443 | p = arg + strlen (arg) - 1; |
444 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
445 | p--; | |
446 | *(p + 1) = '\0'; | |
8b93c638 JM |
447 | } |
448 | ||
d318976c | 449 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 450 | execute_cmd_pre_hook (c); |
c906108c | 451 | |
d318976c FN |
452 | if (c->flags & DEPRECATED_WARN_USER) |
453 | deprecated_cmd_warning (&line); | |
c906108c | 454 | |
d318976c FN |
455 | if (c->class == class_user) |
456 | execute_user_command (c, arg); | |
457 | else if (c->type == set_cmd || c->type == show_cmd) | |
458 | do_setshow_command (arg, from_tty & caution, c); | |
f436dd25 | 459 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 460 | error (_("That is not a command, just a help topic.")); |
9a4105ab AC |
461 | else if (deprecated_call_command_hook) |
462 | deprecated_call_command_hook (c, arg, from_tty & caution); | |
d318976c | 463 | else |
f436dd25 | 464 | cmd_func (c, arg, from_tty & caution); |
d318976c FN |
465 | |
466 | /* If this command has been post-hooked, run the hook last. */ | |
5913bcb0 | 467 | execute_cmd_post_hook (c); |
c906108c | 468 | |
c906108c SS |
469 | } |
470 | ||
d318976c FN |
471 | /* Tell the user if the language has changed (except first time). */ |
472 | if (current_language != expected_language) | |
c906108c | 473 | { |
d318976c | 474 | if (language_mode == language_mode_auto) |
c906108c | 475 | { |
d318976c | 476 | language_info (1); /* Print what changed. */ |
c906108c | 477 | } |
d318976c | 478 | warned = 0; |
c906108c SS |
479 | } |
480 | ||
d318976c FN |
481 | /* Warn the user if the working language does not match the |
482 | language of the current frame. Only warn the user if we are | |
483 | actually running the program, i.e. there is a stack. */ | |
484 | /* FIXME: This should be cacheing the frame and only running when | |
485 | the frame changes. */ | |
486 | ||
8ea051c5 | 487 | if (target_has_stack && !is_running (inferior_ptid)) |
c906108c | 488 | { |
d318976c FN |
489 | flang = get_frame_language (); |
490 | if (!warned | |
491 | && flang != language_unknown | |
492 | && flang != current_language->la_language) | |
c906108c | 493 | { |
d318976c FN |
494 | printf_filtered ("%s\n", lang_frame_mismatch_warn); |
495 | warned = 1; | |
c906108c | 496 | } |
c906108c SS |
497 | } |
498 | } | |
499 | ||
d318976c FN |
500 | /* Read commands from `instream' and execute them |
501 | until end of file or error reading instream. */ | |
c906108c | 502 | |
d318976c FN |
503 | void |
504 | command_loop (void) | |
c906108c | 505 | { |
d318976c FN |
506 | struct cleanup *old_chain; |
507 | char *command; | |
508 | int stdin_is_tty = ISATTY (stdin); | |
509 | long time_at_cmd_start; | |
510 | #ifdef HAVE_SBRK | |
511 | long space_at_cmd_start = 0; | |
512 | #endif | |
513 | extern int display_time; | |
514 | extern int display_space; | |
c5aa993b | 515 | |
d318976c FN |
516 | while (instream && !feof (instream)) |
517 | { | |
d318976c FN |
518 | if (window_hook && instream == stdin) |
519 | (*window_hook) (instream, get_prompt ()); | |
c906108c | 520 | |
d318976c FN |
521 | quit_flag = 0; |
522 | if (instream == stdin && stdin_is_tty) | |
523 | reinitialize_more_filter (); | |
524 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 525 | |
d318976c FN |
526 | /* Get a command-line. This calls the readline package. */ |
527 | command = command_line_input (instream == stdin ? | |
528 | get_prompt () : (char *) NULL, | |
529 | instream == stdin, "prompt"); | |
d318976c FN |
530 | if (command == 0) |
531 | return; | |
c906108c | 532 | |
d318976c | 533 | time_at_cmd_start = get_run_time (); |
c906108c | 534 | |
d318976c | 535 | if (display_space) |
9e0b60a8 | 536 | { |
d318976c | 537 | #ifdef HAVE_SBRK |
d318976c | 538 | char *lim = (char *) sbrk (0); |
6dd77b81 | 539 | space_at_cmd_start = lim - lim_at_start; |
9e0b60a8 | 540 | #endif |
d318976c | 541 | } |
9e0b60a8 | 542 | |
d318976c FN |
543 | execute_command (command, instream == stdin); |
544 | /* Do any commands attached to breakpoint we stopped at. */ | |
545 | bpstat_do_actions (&stop_bpstat); | |
546 | do_cleanups (old_chain); | |
9e0b60a8 | 547 | |
d318976c | 548 | if (display_time) |
9e0b60a8 | 549 | { |
d318976c | 550 | long cmd_time = get_run_time () - time_at_cmd_start; |
9e0b60a8 | 551 | |
a3f17187 | 552 | printf_unfiltered (_("Command execution time: %ld.%06ld\n"), |
d318976c | 553 | cmd_time / 1000000, cmd_time % 1000000); |
9e0b60a8 | 554 | } |
9e0b60a8 | 555 | |
d318976c | 556 | if (display_space) |
9e0b60a8 | 557 | { |
d318976c | 558 | #ifdef HAVE_SBRK |
d318976c | 559 | char *lim = (char *) sbrk (0); |
6dd77b81 | 560 | long space_now = lim - lim_at_start; |
d318976c FN |
561 | long space_diff = space_now - space_at_cmd_start; |
562 | ||
57ee890f | 563 | printf_unfiltered (_("Space used: %ld (%s%ld for this command)\n"), |
d318976c | 564 | space_now, |
57ee890f | 565 | (space_diff >= 0 ? "+" : ""), |
d318976c FN |
566 | space_diff); |
567 | #endif | |
9e0b60a8 | 568 | } |
9e0b60a8 | 569 | } |
9e0b60a8 | 570 | } |
d318976c FN |
571 | \f |
572 | /* Commands call this if they do not want to be repeated by null lines. */ | |
9e0b60a8 | 573 | |
d318976c FN |
574 | void |
575 | dont_repeat (void) | |
9e0b60a8 | 576 | { |
d318976c FN |
577 | if (server_command) |
578 | return; | |
9e0b60a8 | 579 | |
d318976c FN |
580 | /* If we aren't reading from standard input, we are saving the last |
581 | thing read from stdin in line and don't want to delete it. Null lines | |
582 | won't repeat here in any case. */ | |
583 | if (instream == stdin) | |
584 | *line = 0; | |
9e0b60a8 | 585 | } |
d318976c FN |
586 | \f |
587 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 588 | |
d318976c FN |
589 | It prints PROMPT_ARG once at the start. |
590 | Action is compatible with "readline", e.g. space for the result is | |
591 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 592 | |
d318976c FN |
593 | A NULL return means end of file. */ |
594 | char * | |
595 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 596 | { |
d318976c FN |
597 | int c; |
598 | char *result; | |
599 | int input_index = 0; | |
600 | int result_size = 80; | |
9e0b60a8 | 601 | |
d318976c | 602 | if (prompt_arg) |
9e0b60a8 | 603 | { |
d318976c FN |
604 | /* Don't use a _filtered function here. It causes the assumed |
605 | character position to be off, since the newline we read from | |
606 | the user is not accounted for. */ | |
607 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
608 | gdb_flush (gdb_stdout); |
609 | } | |
610 | ||
d318976c | 611 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
612 | |
613 | while (1) | |
614 | { | |
d318976c FN |
615 | /* Read from stdin if we are executing a user defined command. |
616 | This is the right thing for prompt_for_continue, at least. */ | |
617 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 618 | |
d318976c | 619 | if (c == EOF) |
9e0b60a8 | 620 | { |
d318976c FN |
621 | if (input_index > 0) |
622 | /* The last line does not end with a newline. Return it, and | |
623 | if we are called again fgetc will still return EOF and | |
624 | we'll return NULL then. */ | |
9e0b60a8 | 625 | break; |
b8c9b27d | 626 | xfree (result); |
d318976c | 627 | return NULL; |
9e0b60a8 | 628 | } |
c5aa993b | 629 | |
d318976c | 630 | if (c == '\n') |
9e0b60a8 | 631 | { |
d318976c FN |
632 | if (input_index > 0 && result[input_index - 1] == '\r') |
633 | input_index--; | |
634 | break; | |
9e0b60a8 | 635 | } |
9e0b60a8 | 636 | |
d318976c FN |
637 | result[input_index++] = c; |
638 | while (input_index >= result_size) | |
9e0b60a8 | 639 | { |
d318976c FN |
640 | result_size *= 2; |
641 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 642 | } |
9e0b60a8 JM |
643 | } |
644 | ||
d318976c FN |
645 | result[input_index++] = '\0'; |
646 | return result; | |
9e0b60a8 JM |
647 | } |
648 | ||
d318976c FN |
649 | /* Variables which control command line editing and history |
650 | substitution. These variables are given default values at the end | |
651 | of this file. */ | |
652 | static int command_editing_p; | |
920d2a44 | 653 | |
d318976c FN |
654 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
655 | gdb to use the event loop as the default command loop and we merge | |
656 | event-top.c into this file, top.c */ | |
920d2a44 | 657 | |
d318976c | 658 | /* static */ int history_expansion_p; |
920d2a44 | 659 | |
d318976c | 660 | static int write_history_p; |
920d2a44 AC |
661 | static void |
662 | show_write_history_p (struct ui_file *file, int from_tty, | |
663 | struct cmd_list_element *c, const char *value) | |
664 | { | |
665 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
666 | value); | |
667 | } | |
668 | ||
d318976c | 669 | static int history_size; |
920d2a44 AC |
670 | static void |
671 | show_history_size (struct ui_file *file, int from_tty, | |
672 | struct cmd_list_element *c, const char *value) | |
673 | { | |
674 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
675 | value); | |
676 | } | |
677 | ||
d318976c | 678 | static char *history_filename; |
920d2a44 AC |
679 | static void |
680 | show_history_filename (struct ui_file *file, int from_tty, | |
681 | struct cmd_list_element *c, const char *value) | |
682 | { | |
683 | fprintf_filtered (file, _("\ | |
684 | The filename in which to record the command history is \"%s\".\n"), | |
685 | value); | |
686 | } | |
9e0b60a8 | 687 | |
b4f5539f | 688 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 689 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
690 | a single gdb invocation. At the ordinary top-level prompt we might |
691 | be using the async readline. That means we can't use | |
692 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
693 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
694 | `define'), gdb wants a synchronous response. |
695 | ||
696 | We used to call readline() directly, running it in synchronous | |
697 | mode. But mixing modes this way is not supported, and as of | |
698 | readline 5.x it no longer works; the arrow keys come unbound during | |
699 | the synchronous call. So we make a nested call into the event | |
700 | loop. That's what gdb_readline_wrapper is for. */ | |
701 | ||
702 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
703 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
704 | the user types Control-D for EOF. */ | |
705 | static int gdb_readline_wrapper_done; | |
706 | ||
707 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
708 | is seen. */ | |
709 | static char *gdb_readline_wrapper_result; | |
710 | ||
711 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
712 | to be called after the newline is processed (which will redisplay | |
713 | the prompt). But in gdb_readline_wrapper we will not get a new | |
714 | prompt until the next call, or until we return to the event loop. | |
715 | So we disable this hook around the newline and restore it before we | |
716 | return. */ | |
717 | static void (*saved_after_char_processing_hook) (void); | |
718 | ||
719 | /* This function is called when readline has seen a complete line of | |
720 | text. */ | |
721 | ||
722 | static void | |
723 | gdb_readline_wrapper_line (char *line) | |
724 | { | |
725 | gdb_assert (!gdb_readline_wrapper_done); | |
726 | gdb_readline_wrapper_result = line; | |
727 | gdb_readline_wrapper_done = 1; | |
728 | ||
729 | /* Prevent operate-and-get-next from acting too early. */ | |
730 | saved_after_char_processing_hook = after_char_processing_hook; | |
731 | after_char_processing_hook = NULL; | |
1b05479a DJ |
732 | |
733 | /* Prevent parts of the prompt from being redisplayed if annotations | |
734 | are enabled, and readline's state getting out of sync. */ | |
735 | if (async_command_editing_p) | |
736 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
737 | } |
738 | ||
739 | struct gdb_readline_wrapper_cleanup | |
740 | { | |
741 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
742 | int already_prompted_orig; |
743 | }; | |
744 | ||
745 | static void | |
746 | gdb_readline_wrapper_cleanup (void *arg) | |
747 | { | |
748 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
749 | ||
2e03ee74 | 750 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
751 | |
752 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
753 | input_handler = cleanup->handler_orig; | |
754 | gdb_readline_wrapper_result = NULL; | |
755 | gdb_readline_wrapper_done = 0; | |
756 | ||
757 | after_char_processing_hook = saved_after_char_processing_hook; | |
758 | saved_after_char_processing_hook = NULL; | |
759 | ||
760 | xfree (cleanup); | |
761 | } | |
762 | ||
b4f5539f TT |
763 | char * |
764 | gdb_readline_wrapper (char *prompt) | |
765 | { | |
2e03ee74 DJ |
766 | struct cleanup *back_to; |
767 | struct gdb_readline_wrapper_cleanup *cleanup; | |
768 | char *retval; | |
769 | ||
770 | cleanup = xmalloc (sizeof (*cleanup)); | |
771 | cleanup->handler_orig = input_handler; | |
772 | input_handler = gdb_readline_wrapper_line; | |
773 | ||
2e03ee74 DJ |
774 | cleanup->already_prompted_orig = rl_already_prompted; |
775 | ||
776 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
777 | ||
778 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 779 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
780 | rl_already_prompted = 1; |
781 | ||
362646f5 | 782 | if (after_char_processing_hook) |
2e03ee74 DJ |
783 | (*after_char_processing_hook) (); |
784 | gdb_assert (after_char_processing_hook == NULL); | |
785 | ||
786 | /* gdb_do_one_event argument is unused. */ | |
787 | while (gdb_do_one_event (NULL) >= 0) | |
788 | if (gdb_readline_wrapper_done) | |
789 | break; | |
b4f5539f | 790 | |
2e03ee74 DJ |
791 | retval = gdb_readline_wrapper_result; |
792 | do_cleanups (back_to); | |
793 | return retval; | |
b4f5539f TT |
794 | } |
795 | ||
9e0b60a8 | 796 | \f |
d318976c FN |
797 | #ifdef STOP_SIGNAL |
798 | static void | |
799 | stop_sig (int signo) | |
9e0b60a8 | 800 | { |
d318976c FN |
801 | #if STOP_SIGNAL == SIGTSTP |
802 | signal (SIGTSTP, SIG_DFL); | |
46711df8 MK |
803 | #if HAVE_SIGPROCMASK |
804 | { | |
805 | sigset_t zero; | |
806 | ||
807 | sigemptyset (&zero); | |
808 | sigprocmask (SIG_SETMASK, &zero, 0); | |
809 | } | |
810 | #elif HAVE_SIGSETMASK | |
d318976c | 811 | sigsetmask (0); |
46711df8 | 812 | #endif |
d318976c FN |
813 | kill (getpid (), SIGTSTP); |
814 | signal (SIGTSTP, stop_sig); | |
815 | #else | |
816 | signal (STOP_SIGNAL, stop_sig); | |
817 | #endif | |
818 | printf_unfiltered ("%s", get_prompt ()); | |
819 | gdb_flush (gdb_stdout); | |
9e0b60a8 | 820 | |
d318976c FN |
821 | /* Forget about any previous command -- null line now will do nothing. */ |
822 | dont_repeat (); | |
9e0b60a8 | 823 | } |
d318976c | 824 | #endif /* STOP_SIGNAL */ |
9e0b60a8 | 825 | |
d318976c | 826 | /* Initialize signal handlers. */ |
64cdedad EZ |
827 | static void |
828 | float_handler (int signo) | |
829 | { | |
830 | /* This message is based on ANSI C, section 4.7. Note that integer | |
831 | divide by zero causes this, so "float" is a misnomer. */ | |
832 | signal (SIGFPE, float_handler); | |
8a3fe4f8 | 833 | error (_("Erroneous arithmetic operation.")); |
64cdedad EZ |
834 | } |
835 | ||
9e0b60a8 | 836 | static void |
d318976c | 837 | do_nothing (int signo) |
9e0b60a8 | 838 | { |
d318976c FN |
839 | /* Under System V the default disposition of a signal is reinstated after |
840 | the signal is caught and delivered to an application process. On such | |
841 | systems one must restore the replacement signal handler if one wishes | |
842 | to continue handling the signal in one's program. On BSD systems this | |
843 | is not needed but it is harmless, and it simplifies the code to just do | |
844 | it unconditionally. */ | |
845 | signal (signo, do_nothing); | |
9e0b60a8 JM |
846 | } |
847 | ||
467d8519 TT |
848 | /* The current saved history number from operate-and-get-next. |
849 | This is -1 if not valid. */ | |
850 | static int operate_saved_history = -1; | |
851 | ||
852 | /* This is put on the appropriate hook and helps operate-and-get-next | |
853 | do its work. */ | |
b9362cc7 | 854 | static void |
5ae5f592 | 855 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
856 | { |
857 | int delta = where_history () - operate_saved_history; | |
858 | /* The `key' argument to rl_get_previous_history is ignored. */ | |
859 | rl_get_previous_history (delta, 0); | |
860 | operate_saved_history = -1; | |
861 | ||
862 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 863 | rl_redisplay (); |
467d8519 TT |
864 | |
865 | after_char_processing_hook = NULL; | |
866 | rl_pre_input_hook = NULL; | |
867 | } | |
868 | ||
869 | /* This is a gdb-local readline command handler. It accepts the | |
870 | current command line (like RET does) and, if this command was taken | |
871 | from the history, arranges for the next command in the history to | |
872 | appear on the command line when the prompt returns. | |
873 | We ignore the arguments. */ | |
874 | static int | |
875 | gdb_rl_operate_and_get_next (int count, int key) | |
876 | { | |
b5686e99 MK |
877 | int where; |
878 | ||
362646f5 AC |
879 | /* Use the async hook. */ |
880 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 881 | |
b5686e99 MK |
882 | /* Find the current line, and find the next line to use. */ |
883 | where = where_history(); | |
884 | ||
885 | /* FIXME: kettenis/20020817: max_input_history is renamed into | |
886 | history_max_entries in readline-4.2. When we do a new readline | |
887 | import, we should probably change it here too, even though | |
888 | readline maintains backwards compatibility for now by still | |
889 | defining max_input_history. */ | |
890 | if ((history_is_stifled () && (history_length >= max_input_history)) || | |
891 | (where >= history_length - 1)) | |
892 | operate_saved_history = where; | |
893 | else | |
894 | operate_saved_history = where + 1; | |
895 | ||
467d8519 TT |
896 | return rl_newline (1, key); |
897 | } | |
898 | \f | |
d318976c FN |
899 | /* Read one line from the command input stream `instream' |
900 | into the local static buffer `linebuffer' (whose current length | |
901 | is `linelength'). | |
902 | The buffer is made bigger as necessary. | |
903 | Returns the address of the start of the line. | |
9e0b60a8 | 904 | |
d318976c | 905 | NULL is returned for end of file. |
9e0b60a8 | 906 | |
d318976c FN |
907 | *If* the instream == stdin & stdin is a terminal, the line read |
908 | is copied into the file line saver (global var char *line, | |
909 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 910 | |
d318976c FN |
911 | This routine either uses fancy command line editing or |
912 | simple input as the user has requested. */ | |
10689f25 | 913 | |
d318976c FN |
914 | char * |
915 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 916 | { |
d318976c FN |
917 | static char *linebuffer = 0; |
918 | static unsigned linelength = 0; | |
52f0bd74 | 919 | char *p; |
d318976c FN |
920 | char *p1; |
921 | char *rl; | |
922 | char *local_prompt = prompt_arg; | |
923 | char *nline; | |
924 | char got_eof = 0; | |
925 | ||
926 | /* The annotation suffix must be non-NULL. */ | |
927 | if (annotation_suffix == NULL) | |
928 | annotation_suffix = ""; | |
9e0b60a8 | 929 | |
d318976c FN |
930 | if (annotation_level > 1 && instream == stdin) |
931 | { | |
932 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
933 | + strlen (annotation_suffix) + 40); | |
934 | if (prompt_arg == NULL) | |
935 | local_prompt[0] = '\0'; | |
936 | else | |
937 | strcpy (local_prompt, prompt_arg); | |
938 | strcat (local_prompt, "\n\032\032"); | |
939 | strcat (local_prompt, annotation_suffix); | |
940 | strcat (local_prompt, "\n"); | |
941 | } | |
9e0b60a8 | 942 | |
d318976c | 943 | if (linebuffer == 0) |
9e0b60a8 | 944 | { |
d318976c FN |
945 | linelength = 80; |
946 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 947 | } |
9e0b60a8 | 948 | |
d318976c | 949 | p = linebuffer; |
9e0b60a8 | 950 | |
d318976c FN |
951 | /* Control-C quits instantly if typed while in this loop |
952 | since it should not wait until the user types a newline. */ | |
953 | immediate_quit++; | |
954 | #ifdef STOP_SIGNAL | |
955 | if (job_control) | |
362646f5 | 956 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
957 | #endif |
958 | ||
959 | while (1) | |
9e0b60a8 | 960 | { |
d318976c FN |
961 | /* Make sure that all output has been output. Some machines may let |
962 | you get away with leaving out some of the gdb_flush, but not all. */ | |
963 | wrap_here (""); | |
964 | gdb_flush (gdb_stdout); | |
965 | gdb_flush (gdb_stderr); | |
966 | ||
967 | if (source_file_name != NULL) | |
637537d0 | 968 | ++source_line_number; |
d318976c FN |
969 | |
970 | if (annotation_level > 1 && instream == stdin) | |
971 | { | |
306d9ac5 DC |
972 | puts_unfiltered ("\n\032\032pre-"); |
973 | puts_unfiltered (annotation_suffix); | |
974 | puts_unfiltered ("\n"); | |
d318976c FN |
975 | } |
976 | ||
977 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 978 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 979 | { |
9a4105ab | 980 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 981 | } |
698ba934 | 982 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 983 | { |
b4f5539f | 984 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 985 | } |
9e0b60a8 | 986 | else |
d318976c FN |
987 | { |
988 | rl = gdb_readline (local_prompt); | |
989 | } | |
9e0b60a8 | 990 | |
d318976c FN |
991 | if (annotation_level > 1 && instream == stdin) |
992 | { | |
306d9ac5 DC |
993 | puts_unfiltered ("\n\032\032post-"); |
994 | puts_unfiltered (annotation_suffix); | |
995 | puts_unfiltered ("\n"); | |
d318976c | 996 | } |
9e0b60a8 | 997 | |
d318976c | 998 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 999 | { |
d318976c FN |
1000 | got_eof = 1; |
1001 | break; | |
9e0b60a8 | 1002 | } |
d318976c FN |
1003 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
1004 | { | |
1005 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
1006 | nline = (char *) xrealloc (linebuffer, linelength); | |
1007 | p += nline - linebuffer; | |
1008 | linebuffer = nline; | |
1009 | } | |
1010 | p1 = rl; | |
1011 | /* Copy line. Don't copy null at end. (Leaves line alone | |
1012 | if this was just a newline) */ | |
1013 | while (*p1) | |
1014 | *p++ = *p1++; | |
9e0b60a8 | 1015 | |
b8c9b27d | 1016 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 1017 | |
d318976c FN |
1018 | if (p == linebuffer || *(p - 1) != '\\') |
1019 | break; | |
9e0b60a8 | 1020 | |
d318976c FN |
1021 | p--; /* Put on top of '\'. */ |
1022 | local_prompt = (char *) 0; | |
1023 | } | |
9e0b60a8 | 1024 | |
d318976c FN |
1025 | #ifdef STOP_SIGNAL |
1026 | if (job_control) | |
1027 | signal (STOP_SIGNAL, SIG_DFL); | |
1028 | #endif | |
1029 | immediate_quit--; | |
9e0b60a8 | 1030 | |
d318976c FN |
1031 | if (got_eof) |
1032 | return NULL; | |
9e0b60a8 | 1033 | |
d318976c FN |
1034 | #define SERVER_COMMAND_LENGTH 7 |
1035 | server_command = | |
1036 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 1037 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 1038 | if (server_command) |
9e0b60a8 | 1039 | { |
d318976c FN |
1040 | /* Note that we don't set `line'. Between this and the check in |
1041 | dont_repeat, this insures that repeating will still do the | |
1042 | right thing. */ | |
1043 | *p = '\0'; | |
1044 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1045 | } |
9e0b60a8 | 1046 | |
d318976c FN |
1047 | /* Do history expansion if that is wished. */ |
1048 | if (history_expansion_p && instream == stdin | |
1049 | && ISATTY (instream)) | |
1050 | { | |
1051 | char *history_value; | |
1052 | int expanded; | |
9e0b60a8 | 1053 | |
d318976c FN |
1054 | *p = '\0'; /* Insert null now. */ |
1055 | expanded = history_expand (linebuffer, &history_value); | |
1056 | if (expanded) | |
1057 | { | |
1058 | /* Print the changes. */ | |
1059 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1060 | |
d318976c FN |
1061 | /* If there was an error, call this function again. */ |
1062 | if (expanded < 0) | |
1063 | { | |
b8c9b27d | 1064 | xfree (history_value); |
d318976c FN |
1065 | return command_line_input (prompt_arg, repeat, annotation_suffix); |
1066 | } | |
1067 | if (strlen (history_value) > linelength) | |
1068 | { | |
1069 | linelength = strlen (history_value) + 1; | |
1070 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1071 | } | |
1072 | strcpy (linebuffer, history_value); | |
1073 | p = linebuffer + strlen (linebuffer); | |
d318976c | 1074 | } |
91d2803c | 1075 | xfree (history_value); |
d318976c | 1076 | } |
9e0b60a8 | 1077 | |
d318976c FN |
1078 | /* If we just got an empty line, and that is supposed |
1079 | to repeat the previous command, return the value in the | |
1080 | global buffer. */ | |
1081 | if (repeat && p == linebuffer) | |
1082 | return line; | |
1083 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); | |
1084 | if (repeat && !*p1) | |
1085 | return line; | |
9e0b60a8 | 1086 | |
d318976c | 1087 | *p = 0; |
9e0b60a8 | 1088 | |
d318976c FN |
1089 | /* Add line to history if appropriate. */ |
1090 | if (instream == stdin | |
1091 | && ISATTY (stdin) && *linebuffer) | |
1092 | add_history (linebuffer); | |
9e0b60a8 | 1093 | |
d318976c FN |
1094 | /* Note: lines consisting solely of comments are added to the command |
1095 | history. This is useful when you type a command, and then | |
1096 | realize you don't want to execute it quite yet. You can comment | |
1097 | out the command and then later fetch it from the value history | |
1098 | and remove the '#'. The kill ring is probably better, but some | |
1099 | people are in the habit of commenting things out. */ | |
1100 | if (*p1 == '#') | |
1101 | *p1 = '\0'; /* Found a comment. */ | |
9e0b60a8 | 1102 | |
d318976c FN |
1103 | /* Save into global buffer if appropriate. */ |
1104 | if (repeat) | |
1105 | { | |
1106 | if (linelength > linesize) | |
1107 | { | |
1108 | line = xrealloc (line, linelength); | |
1109 | linesize = linelength; | |
1110 | } | |
1111 | strcpy (line, linebuffer); | |
1112 | return line; | |
1113 | } | |
9e0b60a8 | 1114 | |
d318976c | 1115 | return linebuffer; |
9e0b60a8 JM |
1116 | } |
1117 | \f | |
1118 | /* Print the GDB banner. */ | |
1119 | void | |
fba45db2 | 1120 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1121 | { |
1122 | /* From GNU coding standards, first line is meant to be easy for a | |
1123 | program to parse, and is just canonical program name and version | |
1124 | number, which starts after last space. */ | |
1125 | ||
c16158bc | 1126 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 JM |
1127 | |
1128 | /* Second line is a copyright notice. */ | |
1129 | ||
636265b6 | 1130 | fprintf_filtered (stream, "Copyright (C) 2008 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1131 | |
1132 | /* Following the copyright is a brief statement that the program is | |
1133 | free software, that users are free to copy and change it on | |
1134 | certain conditions, that it is covered by the GNU GPL, and that | |
1135 | there is no warranty. */ | |
1136 | ||
1137 | fprintf_filtered (stream, "\ | |
b8533aec DJ |
1138 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n\ |
1139 | This is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1140 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1141 | and \"show warranty\" for details.\n"); |
9e0b60a8 JM |
1142 | |
1143 | /* After the required info we print the configuration information. */ | |
1144 | ||
1145 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1146 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 JM |
1147 | { |
1148 | fprintf_filtered (stream, "--host=%s --target=%s", host_name, target_name); | |
1149 | } | |
1150 | else | |
1151 | { | |
1152 | fprintf_filtered (stream, "%s", host_name); | |
1153 | } | |
1154 | fprintf_filtered (stream, "\"."); | |
c16158bc JM |
1155 | |
1156 | if (REPORT_BUGS_TO[0]) | |
1157 | { | |
1158 | fprintf_filtered (stream, | |
1159 | _("\nFor bug reporting instructions, please see:\n")); | |
7949220d | 1160 | fprintf_filtered (stream, "%s.", REPORT_BUGS_TO); |
c16158bc | 1161 | } |
9e0b60a8 | 1162 | } |
9e0b60a8 JM |
1163 | \f |
1164 | /* get_prompt: access method for the GDB prompt string. */ | |
1165 | ||
9e0b60a8 | 1166 | char * |
fba45db2 | 1167 | get_prompt (void) |
9e0b60a8 | 1168 | { |
362646f5 | 1169 | return PROMPT (0); |
9e0b60a8 JM |
1170 | } |
1171 | ||
1172 | void | |
fba45db2 | 1173 | set_prompt (char *s) |
9e0b60a8 JM |
1174 | { |
1175 | /* ??rehrauer: I don't know why this fails, since it looks as though | |
1176 | assignments to prompt are wrapped in calls to savestring... | |
c5aa993b | 1177 | if (prompt != NULL) |
b8c9b27d | 1178 | xfree (prompt); |
c5aa993b | 1179 | */ |
362646f5 | 1180 | PROMPT (0) = savestring (s, strlen (s)); |
9e0b60a8 | 1181 | } |
9e0b60a8 | 1182 | \f |
c5aa993b | 1183 | |
9e0b60a8 JM |
1184 | /* If necessary, make the user confirm that we should quit. Return |
1185 | non-zero if we should quit, zero if we shouldn't. */ | |
1186 | ||
1187 | int | |
fba45db2 | 1188 | quit_confirm (void) |
9e0b60a8 | 1189 | { |
39f77062 | 1190 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
9e0b60a8 JM |
1191 | { |
1192 | char *s; | |
1193 | ||
1194 | /* This is something of a hack. But there's no reliable way to | |
c5aa993b JM |
1195 | see if a GUI is running. The `use_windows' variable doesn't |
1196 | cut it. */ | |
9a4105ab | 1197 | if (deprecated_init_ui_hook) |
9e0b60a8 JM |
1198 | s = "A debugging session is active.\nDo you still want to close the debugger?"; |
1199 | else if (attach_flag) | |
1200 | s = "The program is running. Quit anyway (and detach it)? "; | |
1201 | else | |
b21991b0 | 1202 | s = "The program is running. Quit anyway (and kill it)? "; |
9e0b60a8 | 1203 | |
306d9ac5 | 1204 | if (!query ("%s", s)) |
9e0b60a8 JM |
1205 | return 0; |
1206 | } | |
1207 | ||
1208 | return 1; | |
1209 | } | |
1210 | ||
b0abbc58 | 1211 | /* Helper routine for quit_force that requires error handling. */ |
9e0b60a8 | 1212 | |
b0abbc58 | 1213 | struct qt_args |
9e0b60a8 | 1214 | { |
b0abbc58 JJ |
1215 | char *args; |
1216 | int from_tty; | |
1217 | }; | |
9e0b60a8 | 1218 | |
b0abbc58 JJ |
1219 | static int |
1220 | quit_target (void *arg) | |
1221 | { | |
1222 | struct qt_args *qt = (struct qt_args *)arg; | |
9e0b60a8 | 1223 | |
39f77062 | 1224 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
9e0b60a8 JM |
1225 | { |
1226 | if (attach_flag) | |
b0abbc58 | 1227 | target_detach (qt->args, qt->from_tty); |
9e0b60a8 | 1228 | else |
b0abbc58 | 1229 | target_kill (); |
9e0b60a8 JM |
1230 | } |
1231 | ||
1232 | /* UDI wants this, to kill the TIP. */ | |
f1c07ab0 | 1233 | target_close (¤t_target, 1); |
9e0b60a8 JM |
1234 | |
1235 | /* Save the history information if it is appropriate to do so. */ | |
1236 | if (write_history_p && history_filename) | |
1237 | write_history (history_filename); | |
1238 | ||
c5aa993b | 1239 | do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before exiting */ |
9e0b60a8 | 1240 | |
b0abbc58 JJ |
1241 | return 0; |
1242 | } | |
1243 | ||
1244 | /* Quit without asking for confirmation. */ | |
1245 | ||
1246 | void | |
1247 | quit_force (char *args, int from_tty) | |
1248 | { | |
1249 | int exit_code = 0; | |
365c70b1 | 1250 | struct qt_args qt; |
b0abbc58 JJ |
1251 | |
1252 | /* An optional expression may be used to cause gdb to terminate with the | |
1253 | value of that expression. */ | |
1254 | if (args) | |
1255 | { | |
1256 | struct value *val = parse_and_eval (args); | |
1257 | ||
1258 | exit_code = (int) value_as_long (val); | |
1259 | } | |
4b0ad762 AS |
1260 | else if (return_child_result) |
1261 | exit_code = return_child_result_value; | |
b0abbc58 | 1262 | |
365c70b1 JJ |
1263 | qt.args = args; |
1264 | qt.from_tty = from_tty; | |
1265 | ||
b0abbc58 | 1266 | /* We want to handle any quit errors and exit regardless. */ |
365c70b1 | 1267 | catch_errors (quit_target, &qt, |
b0abbc58 JJ |
1268 | "Quitting: ", RETURN_MASK_ALL); |
1269 | ||
9e0b60a8 JM |
1270 | exit (exit_code); |
1271 | } | |
1272 | ||
698ba934 DJ |
1273 | /* Returns whether GDB is running on a terminal and input is |
1274 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1275 | |
1276 | int | |
fba45db2 | 1277 | input_from_terminal_p (void) |
9e0b60a8 | 1278 | { |
698ba934 DJ |
1279 | if (gdb_has_a_terminal () && instream == stdin) |
1280 | return 1; | |
1281 | ||
1282 | /* If INSTREAM is unset, and we are not in a user command, we | |
1283 | must be in Insight. That's like having a terminal, for our | |
1284 | purposes. */ | |
1285 | if (instream == NULL && !in_user_command) | |
1286 | return 1; | |
1287 | ||
1288 | return 0; | |
9e0b60a8 JM |
1289 | } |
1290 | \f | |
9e0b60a8 | 1291 | static void |
fba45db2 | 1292 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1293 | { |
c5aa993b JM |
1294 | *line = 0; /* Can't call dont_repeat here because we're not |
1295 | necessarily reading from stdin. */ | |
9e0b60a8 JM |
1296 | } |
1297 | \f | |
1298 | /* Functions to manipulate command line editing control variables. */ | |
1299 | ||
1300 | /* Number of commands to print in each call to show_commands. */ | |
1301 | #define Hist_print 10 | |
d318976c | 1302 | void |
fba45db2 | 1303 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1304 | { |
1305 | /* Index for history commands. Relative to history_base. */ | |
1306 | int offset; | |
1307 | ||
1308 | /* Number of the history entry which we are planning to display next. | |
1309 | Relative to history_base. */ | |
1310 | static int num = 0; | |
1311 | ||
1312 | /* The first command in the history which doesn't exist (i.e. one more | |
1313 | than the number of the last command). Relative to history_base. */ | |
1314 | int hist_len; | |
1315 | ||
9e0b60a8 JM |
1316 | /* Print out some of the commands from the command history. */ |
1317 | /* First determine the length of the history list. */ | |
1318 | hist_len = history_size; | |
1319 | for (offset = 0; offset < history_size; offset++) | |
1320 | { | |
1321 | if (!history_get (history_base + offset)) | |
1322 | { | |
1323 | hist_len = offset; | |
1324 | break; | |
1325 | } | |
1326 | } | |
1327 | ||
1328 | if (args) | |
1329 | { | |
1330 | if (args[0] == '+' && args[1] == '\0') | |
1331 | /* "info editing +" should print from the stored position. */ | |
1332 | ; | |
1333 | else | |
1334 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1335 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1336 | } |
1337 | /* "show commands" means print the last Hist_print commands. */ | |
1338 | else | |
1339 | { | |
1340 | num = hist_len - Hist_print; | |
1341 | } | |
1342 | ||
1343 | if (num < 0) | |
1344 | num = 0; | |
1345 | ||
1346 | /* If there are at least Hist_print commands, we want to display the last | |
1347 | Hist_print rather than, say, the last 6. */ | |
1348 | if (hist_len - num < Hist_print) | |
1349 | { | |
1350 | num = hist_len - Hist_print; | |
1351 | if (num < 0) | |
1352 | num = 0; | |
1353 | } | |
1354 | ||
1355 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1356 | { | |
1357 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1358 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1359 | } |
1360 | ||
1361 | /* The next command we want to display is the next one that we haven't | |
1362 | displayed yet. */ | |
1363 | num += Hist_print; | |
1364 | ||
1365 | /* If the user repeats this command with return, it should do what | |
1366 | "show commands +" does. This is unnecessary if arg is null, | |
1367 | because "show commands +" is not useful after "show commands". */ | |
1368 | if (from_tty && args) | |
1369 | { | |
1370 | args[0] = '+'; | |
1371 | args[1] = '\0'; | |
1372 | } | |
1373 | } | |
1374 | ||
1375 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1376 | static void |
fba45db2 | 1377 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1378 | { |
1379 | if (history_size == INT_MAX) | |
1380 | unstifle_history (); | |
1381 | else if (history_size >= 0) | |
1382 | stifle_history (history_size); | |
1383 | else | |
1384 | { | |
1385 | history_size = INT_MAX; | |
8a3fe4f8 | 1386 | error (_("History size must be non-negative")); |
9e0b60a8 JM |
1387 | } |
1388 | } | |
1389 | ||
d318976c | 1390 | void |
fba45db2 | 1391 | set_history (char *args, int from_tty) |
9e0b60a8 | 1392 | { |
a3f17187 | 1393 | printf_unfiltered (_("\"set history\" must be followed by the name of a history subcommand.\n")); |
9e0b60a8 JM |
1394 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1395 | } | |
1396 | ||
d318976c | 1397 | void |
fba45db2 | 1398 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1399 | { |
1400 | cmd_show_list (showhistlist, from_tty, ""); | |
1401 | } | |
1402 | ||
1403 | int info_verbose = 0; /* Default verbose msgs off */ | |
1404 | ||
1405 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1406 | void |
fba45db2 | 1407 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1408 | { |
1409 | char *cmdname = "verbose"; | |
1410 | struct cmd_list_element *showcmd; | |
1411 | ||
1412 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1413 | ||
1414 | if (info_verbose) | |
1415 | { | |
1416 | c->doc = "Set verbose printing of informational messages."; | |
1417 | showcmd->doc = "Show verbose printing of informational messages."; | |
1418 | } | |
1419 | else | |
1420 | { | |
1421 | c->doc = "Set verbosity."; | |
1422 | showcmd->doc = "Show verbosity."; | |
1423 | } | |
1424 | } | |
1425 | ||
9e0b60a8 JM |
1426 | /* Init the history buffer. Note that we are called after the init file(s) |
1427 | * have been read so that the user can change the history file via his | |
1428 | * .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1429 | * overrides all of this. | |
1430 | */ | |
1431 | ||
1432 | void | |
fba45db2 | 1433 | init_history (void) |
9e0b60a8 JM |
1434 | { |
1435 | char *tmpenv; | |
1436 | ||
1437 | tmpenv = getenv ("HISTSIZE"); | |
1438 | if (tmpenv) | |
1439 | history_size = atoi (tmpenv); | |
1440 | else if (!history_size) | |
1441 | history_size = 256; | |
1442 | ||
1443 | stifle_history (history_size); | |
1444 | ||
1445 | tmpenv = getenv ("GDBHISTFILE"); | |
1446 | if (tmpenv) | |
c5aa993b JM |
1447 | history_filename = savestring (tmpenv, strlen (tmpenv)); |
1448 | else if (!history_filename) | |
1449 | { | |
1450 | /* We include the current directory so that if the user changes | |
1451 | directories the file written will be the same as the one | |
1452 | that was read. */ | |
a0b3c4fd | 1453 | #ifdef __MSDOS__ |
eb2f494a | 1454 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1455 | history_filename = concat (current_directory, "/_gdb_history", |
1456 | (char *)NULL); | |
a0b3c4fd | 1457 | #else |
1754f103 MK |
1458 | history_filename = concat (current_directory, "/.gdb_history", |
1459 | (char *)NULL); | |
a0b3c4fd | 1460 | #endif |
c5aa993b | 1461 | } |
9e0b60a8 JM |
1462 | read_history (history_filename); |
1463 | } | |
1464 | ||
920d2a44 AC |
1465 | static void |
1466 | show_new_async_prompt (struct ui_file *file, int from_tty, | |
1467 | struct cmd_list_element *c, const char *value) | |
1468 | { | |
1469 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1470 | } | |
1471 | ||
1472 | static void | |
1473 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1474 | struct cmd_list_element *c, const char *value) | |
1475 | { | |
1476 | fprintf_filtered (file, _("\ | |
1477 | Editing of command lines as they are typed is %s.\n"), | |
1478 | value); | |
1479 | } | |
1480 | ||
1481 | static void | |
1482 | show_annotation_level (struct ui_file *file, int from_tty, | |
1483 | struct cmd_list_element *c, const char *value) | |
1484 | { | |
1485 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1486 | } | |
1487 | ||
1488 | static void | |
1489 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1490 | struct cmd_list_element *c, const char *value) | |
1491 | { | |
1492 | fprintf_filtered (file, _("\ | |
1493 | Notification of completion for asynchronous execution commands is %s.\n"), | |
1494 | value); | |
1495 | } | |
9e0b60a8 | 1496 | static void |
fba45db2 | 1497 | init_main (void) |
9e0b60a8 JM |
1498 | { |
1499 | struct cmd_list_element *c; | |
1500 | ||
362646f5 AC |
1501 | /* initialize the prompt stack to a simple "(gdb) " prompt or to |
1502 | whatever the DEFAULT_PROMPT is. */ | |
1503 | the_prompts.top = 0; | |
1504 | PREFIX (0) = ""; | |
1505 | PROMPT (0) = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT)); | |
1506 | SUFFIX (0) = ""; | |
1507 | /* Set things up for annotation_level > 1, if the user ever decides | |
1508 | to use it. */ | |
1509 | async_annotation_suffix = "prompt"; | |
1510 | /* Set the variable associated with the setshow prompt command. */ | |
1511 | new_async_prompt = savestring (PROMPT (0), strlen (PROMPT (0))); | |
1512 | ||
1513 | /* If gdb was started with --annotate=2, this is equivalent to the | |
1514 | user entering the command 'set annotate 2' at the gdb prompt, so | |
1515 | we need to do extra processing. */ | |
1516 | if (annotation_level > 1) | |
1517 | set_async_annotation_level (NULL, 0, NULL); | |
9e0b60a8 JM |
1518 | |
1519 | /* Set the important stuff up for command editing. */ | |
1520 | command_editing_p = 1; | |
9e0b60a8 JM |
1521 | history_expansion_p = 0; |
1522 | write_history_p = 0; | |
1523 | ||
1524 | /* Setup important stuff for command line editing. */ | |
38017ce8 | 1525 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1526 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1527 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1528 | rl_readline_name = "gdb"; |
7cb3ec5e | 1529 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1530 | |
467d8519 TT |
1531 | /* The name for this defun comes from Bash, where it originated. |
1532 | 15 is Control-o, the same binding this function has in Bash. */ | |
1533 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1534 | ||
4d28ad1e AC |
1535 | add_setshow_string_cmd ("prompt", class_support, |
1536 | &new_async_prompt, _("\ | |
1537 | Set gdb's prompt"), _("\ | |
1538 | Show gdb's prompt"), NULL, | |
1539 | set_async_prompt, | |
920d2a44 | 1540 | show_new_async_prompt, |
4d28ad1e | 1541 | &setlist, &showlist); |
9e0b60a8 | 1542 | |
1bedd215 AC |
1543 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
1544 | Don't repeat this command.\n\ | |
9e0b60a8 | 1545 | Primarily used inside of user-defined commands that should not be repeated when\n\ |
1bedd215 | 1546 | hitting return.")); |
9e0b60a8 | 1547 | |
5bf193a2 AC |
1548 | add_setshow_boolean_cmd ("editing", class_support, |
1549 | &async_command_editing_p, _("\ | |
1550 | Set editing of command lines as they are typed."), _("\ | |
1551 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1552 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1553 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1554 | EMACS-like or VI-like commands like control-P or ESC."), |
1555 | set_async_editing_command, | |
920d2a44 | 1556 | show_async_command_editing_p, |
5bf193a2 AC |
1557 | &setlist, &showlist); |
1558 | ||
1559 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1560 | Set saving of the history record on exit."), _("\ | |
1561 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1562 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1563 | Without an argument, saving is enabled."), |
1564 | NULL, | |
920d2a44 | 1565 | show_write_history_p, |
5bf193a2 | 1566 | &sethistlist, &showhistlist); |
9e0b60a8 | 1567 | |
4d28ad1e AC |
1568 | add_setshow_integer_cmd ("size", no_class, &history_size, _("\ |
1569 | Set the size of the command history,"), _("\ | |
1570 | Show the size of the command history,"), _("\ | |
1571 | ie. the number of previous commands to keep a record of."), | |
1572 | set_history_size_command, | |
920d2a44 | 1573 | show_history_size, |
4d28ad1e AC |
1574 | &sethistlist, &showhistlist); |
1575 | ||
1576 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1577 | Set the filename in which to record the command history"), _("\ | |
1578 | Show the filename in which to record the command history"), _("\ | |
1579 | (the list of previous commands of which a record is kept)."), | |
1580 | NULL, | |
920d2a44 | 1581 | show_history_filename, |
4d28ad1e | 1582 | &sethistlist, &showhistlist); |
9e0b60a8 | 1583 | |
5bf193a2 AC |
1584 | add_setshow_boolean_cmd ("confirm", class_support, &caution, _("\ |
1585 | Set whether to confirm potentially dangerous operations."), _("\ | |
1586 | Show whether to confirm potentially dangerous operations."), NULL, | |
1587 | NULL, | |
920d2a44 | 1588 | show_caution, |
5bf193a2 | 1589 | &setlist, &showlist); |
9e0b60a8 | 1590 | |
85c07804 AC |
1591 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1592 | Set annotation_level."), _("\ | |
1593 | Show annotation_level."), _("\ | |
9e0b60a8 | 1594 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 AC |
1595 | 2 == output annotated suitably for use by programs that control GDB."), |
1596 | set_async_annotation_level, | |
920d2a44 | 1597 | show_annotation_level, |
85c07804 | 1598 | &setlist, &showlist); |
362646f5 | 1599 | |
5bf193a2 AC |
1600 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1601 | &exec_done_display_p, _("\ | |
1602 | Set notification of completion for asynchronous execution commands."), _("\ | |
1603 | Show notification of completion for asynchronous execution commands."), _("\ | |
1604 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1605 | NULL, | |
920d2a44 | 1606 | show_exec_done_display_p, |
5bf193a2 | 1607 | &setlist, &showlist); |
9e0b60a8 | 1608 | } |
64cdedad EZ |
1609 | |
1610 | void | |
1611 | gdb_init (char *argv0) | |
1612 | { | |
1613 | if (pre_init_ui_hook) | |
1614 | pre_init_ui_hook (); | |
1615 | ||
1616 | /* Run the init function of each source file */ | |
1617 | ||
1618 | getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
1619 | current_directory = gdb_dirbuf; | |
1620 | ||
1621 | #ifdef __MSDOS__ | |
1622 | /* Make sure we return to the original directory upon exit, come | |
1623 | what may, since the OS doesn't do that for us. */ | |
1624 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1625 | #endif | |
1626 | ||
1627 | init_cmd_lists (); /* This needs to be done first */ | |
1628 | initialize_targets (); /* Setup target_terminal macros for utils.c */ | |
1629 | initialize_utils (); /* Make errors and warnings possible */ | |
1630 | initialize_all_files (); | |
1631 | initialize_current_architecture (); | |
1632 | init_cli_cmds(); | |
1633 | init_main (); /* But that omits this file! Do it now */ | |
1634 | ||
0ea3f30e DJ |
1635 | initialize_stdin_serial (); |
1636 | ||
362646f5 | 1637 | async_init_signals (); |
64cdedad EZ |
1638 | |
1639 | /* We need a default language for parsing expressions, so simple things like | |
1640 | "set width 0" won't fail if no language is explicitly set in a config file | |
1641 | or implicitly set by reading an executable during startup. */ | |
1642 | set_language (language_c); | |
1643 | expected_language = current_language; /* don't warn about the change. */ | |
1644 | ||
9a4105ab AC |
1645 | /* Allow another UI to initialize. If the UI fails to initialize, |
1646 | and it wants GDB to revert to the CLI, it should clear | |
1647 | deprecated_init_ui_hook. */ | |
1648 | if (deprecated_init_ui_hook) | |
1649 | deprecated_init_ui_hook (argv0); | |
64cdedad | 1650 | } |