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 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 | 248 | |
6426a772 JM |
249 | /* Called as appropriate to notify the interface that we have attached |
250 | to or detached from an already running process. */ | |
251 | ||
9a4105ab AC |
252 | void (*deprecated_attach_hook) (void); |
253 | void (*deprecated_detach_hook) (void); | |
6426a772 | 254 | |
c906108c SS |
255 | /* Called during long calculations to allow GUI to repair window damage, and to |
256 | check for stop buttons, etc... */ | |
257 | ||
9a4105ab | 258 | void (*deprecated_interactive_hook) (void); |
c906108c | 259 | |
c906108c SS |
260 | /* Tell the GUI someone changed the register REGNO. -1 means |
261 | that the caller does not know which register changed or | |
c5aa993b | 262 | that several registers have changed (see value_assign). */ |
9a4105ab | 263 | void (*deprecated_register_changed_hook) (int regno); |
c906108c SS |
264 | |
265 | /* Tell the GUI someone changed LEN bytes of memory at ADDR */ | |
9a4105ab | 266 | void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len); |
c906108c SS |
267 | |
268 | /* Called when going to wait for the target. Usually allows the GUI to run | |
269 | while waiting for target events. */ | |
270 | ||
9a4105ab AC |
271 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
272 | struct target_waitstatus * status); | |
c906108c SS |
273 | |
274 | /* Used by UI as a wrapper around command execution. May do various things | |
275 | like enabling/disabling buttons, etc... */ | |
276 | ||
9a4105ab AC |
277 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, char *cmd, |
278 | int from_tty); | |
c906108c | 279 | |
96baa820 JM |
280 | /* Called after a `set' command has finished. Is only run if the |
281 | `set' command succeeded. */ | |
282 | ||
9a4105ab | 283 | void (*deprecated_set_hook) (struct cmd_list_element * c); |
96baa820 | 284 | |
c906108c SS |
285 | /* Called when the current thread changes. Argument is thread id. */ |
286 | ||
9a4105ab | 287 | void (*deprecated_context_hook) (int id); |
c906108c SS |
288 | |
289 | /* Takes control from error (). Typically used to prevent longjmps out of the | |
290 | middle of the GUI. Usually used in conjunction with a catch routine. */ | |
291 | ||
c40d0d10 | 292 | void (*deprecated_error_hook) (void); |
11cf8741 | 293 | |
c906108c SS |
294 | /* Handler for SIGHUP. */ |
295 | ||
296 | #ifdef SIGHUP | |
392a587b | 297 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 SS |
298 | gdb to use the event loop as the default command loop and we merge |
299 | event-top.c into this file, top.c */ | |
300 | /* static */ int | |
d0c8cdfb | 301 | quit_cover (void *s) |
c906108c | 302 | { |
c5aa993b JM |
303 | caution = 0; /* Throw caution to the wind -- we're exiting. |
304 | This prevents asking the user dumb questions. */ | |
305 | quit_command ((char *) 0, 0); | |
c906108c SS |
306 | return 0; |
307 | } | |
308 | #endif /* defined SIGHUP */ | |
309 | \f | |
310 | /* Line number we are currently in in a file which is being sourced. */ | |
392a587b | 311 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
312 | gdb to use the event loop as the default command loop and we merge |
313 | event-top.c into this file, top.c */ | |
314 | /* static */ int source_line_number; | |
c906108c SS |
315 | |
316 | /* Name of the file we are sourcing. */ | |
392a587b | 317 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
318 | gdb to use the event loop as the default command loop and we merge |
319 | event-top.c into this file, top.c */ | |
320 | /* static */ char *source_file_name; | |
c906108c | 321 | |
c906108c SS |
322 | /* Clean up on error during a "source" command (or execution of a |
323 | user-defined command). */ | |
324 | ||
d318976c | 325 | void |
e41a3b1a | 326 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
327 | { |
328 | /* Restore the previous input stream. */ | |
329 | instream = stream; | |
330 | } | |
331 | ||
332 | /* Read commands from STREAM. */ | |
333 | void | |
fba45db2 | 334 | read_command_file (FILE *stream) |
c906108c SS |
335 | { |
336 | struct cleanup *cleanups; | |
337 | ||
e41a3b1a | 338 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 339 | instream = stream; |
c5aa993b | 340 | command_loop (); |
c906108c SS |
341 | do_cleanups (cleanups); |
342 | } | |
343 | \f | |
507f3c78 | 344 | void (*pre_init_ui_hook) (void); |
c906108c | 345 | |
e41a3b1a AC |
346 | #ifdef __MSDOS__ |
347 | void | |
348 | do_chdir_cleanup (void *old_dir) | |
349 | { | |
350 | chdir (old_dir); | |
b8c9b27d | 351 | xfree (old_dir); |
e41a3b1a AC |
352 | } |
353 | #endif | |
354 | ||
d318976c FN |
355 | /* Execute the line P as a command. |
356 | Pass FROM_TTY as second argument to the defining function. */ | |
c906108c | 357 | |
4f8d22e3 PA |
358 | /* Execute command P, in the current user context. */ |
359 | ||
d318976c FN |
360 | void |
361 | execute_command (char *p, int from_tty) | |
c906108c | 362 | { |
52f0bd74 AC |
363 | struct cmd_list_element *c; |
364 | enum language flang; | |
d318976c FN |
365 | static int warned = 0; |
366 | char *line; | |
2f77b315 | 367 | long time_at_cmd_start = 0; |
32c1e744 VP |
368 | #ifdef HAVE_SBRK |
369 | long space_at_cmd_start = 0; | |
370 | #endif | |
371 | extern int display_time; | |
372 | extern int display_space; | |
373 | ||
374 | if (target_can_async_p ()) | |
375 | { | |
376 | time_at_cmd_start = get_run_time (); | |
377 | ||
378 | if (display_space) | |
379 | { | |
380 | #ifdef HAVE_SBRK | |
381 | char *lim = (char *) sbrk (0); | |
382 | space_at_cmd_start = lim - lim_at_start; | |
383 | #endif | |
384 | } | |
385 | } | |
67e1e03a | 386 | |
d318976c | 387 | free_all_values (); |
c906108c | 388 | |
d318976c FN |
389 | /* Force cleanup of any alloca areas if using C alloca instead of |
390 | a builtin alloca. */ | |
391 | alloca (0); | |
c906108c | 392 | |
d318976c FN |
393 | /* This can happen when command_line_input hits end of file. */ |
394 | if (p == NULL) | |
395 | return; | |
c906108c | 396 | |
49d03eab | 397 | target_log_command (p); |
8b93c638 | 398 | |
d318976c FN |
399 | while (*p == ' ' || *p == '\t') |
400 | p++; | |
401 | if (*p) | |
8b93c638 | 402 | { |
d318976c FN |
403 | char *arg; |
404 | line = p; | |
8b93c638 | 405 | |
16026cd7 AS |
406 | /* If trace-commands is set then this will print this command. */ |
407 | print_command_trace (p); | |
408 | ||
d318976c | 409 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 410 | |
4f8d22e3 PA |
411 | /* If the selected thread has terminated, we allow only a |
412 | limited set of commands. */ | |
8ea051c5 | 413 | if (target_can_async_p () |
4f8d22e3 PA |
414 | && is_exited (inferior_ptid) |
415 | && !get_cmd_no_selected_thread_ok (c)) | |
416 | error (_("\ | |
417 | Cannot execute this command without a live selected thread. See `help thread'.")); | |
8b93c638 | 418 | |
d318976c FN |
419 | /* Pass null arg rather than an empty one. */ |
420 | arg = *p ? p : 0; | |
8b93c638 | 421 | |
9f60d481 AC |
422 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
423 | while the is_complete_command(cfunc) test is just plain | |
424 | bogus. They should both be replaced by a test of the form | |
425 | c->strip_trailing_white_space_p. */ | |
426 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
427 | can't be replaced with func. This is because it is the | |
428 | cfunc, and not the func, that has the value that the | |
429 | is_complete_command hack is testing for. */ | |
430 | /* Clear off trailing whitespace, except for set and complete | |
431 | command. */ | |
d318976c FN |
432 | if (arg |
433 | && c->type != set_cmd | |
bbaca940 | 434 | && !is_complete_command (c)) |
8b93c638 | 435 | { |
d318976c FN |
436 | p = arg + strlen (arg) - 1; |
437 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
438 | p--; | |
439 | *(p + 1) = '\0'; | |
8b93c638 JM |
440 | } |
441 | ||
d318976c | 442 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 443 | execute_cmd_pre_hook (c); |
c906108c | 444 | |
d318976c FN |
445 | if (c->flags & DEPRECATED_WARN_USER) |
446 | deprecated_cmd_warning (&line); | |
c906108c | 447 | |
d318976c FN |
448 | if (c->class == class_user) |
449 | execute_user_command (c, arg); | |
450 | else if (c->type == set_cmd || c->type == show_cmd) | |
451 | do_setshow_command (arg, from_tty & caution, c); | |
f436dd25 | 452 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 453 | error (_("That is not a command, just a help topic.")); |
9a4105ab AC |
454 | else if (deprecated_call_command_hook) |
455 | deprecated_call_command_hook (c, arg, from_tty & caution); | |
d318976c | 456 | else |
f436dd25 | 457 | cmd_func (c, arg, from_tty & caution); |
d318976c FN |
458 | |
459 | /* If this command has been post-hooked, run the hook last. */ | |
5913bcb0 | 460 | execute_cmd_post_hook (c); |
c906108c | 461 | |
c906108c SS |
462 | } |
463 | ||
d318976c FN |
464 | /* Tell the user if the language has changed (except first time). */ |
465 | if (current_language != expected_language) | |
c906108c | 466 | { |
d318976c | 467 | if (language_mode == language_mode_auto) |
c906108c | 468 | { |
d318976c | 469 | language_info (1); /* Print what changed. */ |
c906108c | 470 | } |
d318976c | 471 | warned = 0; |
c906108c SS |
472 | } |
473 | ||
d318976c FN |
474 | /* Warn the user if the working language does not match the |
475 | language of the current frame. Only warn the user if we are | |
476 | actually running the program, i.e. there is a stack. */ | |
477 | /* FIXME: This should be cacheing the frame and only running when | |
478 | the frame changes. */ | |
479 | ||
0d6431e2 | 480 | if (target_has_stack && is_stopped (inferior_ptid)) |
c906108c | 481 | { |
d318976c FN |
482 | flang = get_frame_language (); |
483 | if (!warned | |
484 | && flang != language_unknown | |
485 | && flang != current_language->la_language) | |
c906108c | 486 | { |
d318976c FN |
487 | printf_filtered ("%s\n", lang_frame_mismatch_warn); |
488 | warned = 1; | |
c906108c | 489 | } |
c906108c SS |
490 | } |
491 | } | |
492 | ||
d318976c FN |
493 | /* Read commands from `instream' and execute them |
494 | until end of file or error reading instream. */ | |
c906108c | 495 | |
d318976c FN |
496 | void |
497 | command_loop (void) | |
c906108c | 498 | { |
d318976c FN |
499 | struct cleanup *old_chain; |
500 | char *command; | |
501 | int stdin_is_tty = ISATTY (stdin); | |
502 | long time_at_cmd_start; | |
503 | #ifdef HAVE_SBRK | |
504 | long space_at_cmd_start = 0; | |
505 | #endif | |
506 | extern int display_time; | |
507 | extern int display_space; | |
c5aa993b | 508 | |
d318976c FN |
509 | while (instream && !feof (instream)) |
510 | { | |
d318976c FN |
511 | if (window_hook && instream == stdin) |
512 | (*window_hook) (instream, get_prompt ()); | |
c906108c | 513 | |
d318976c FN |
514 | quit_flag = 0; |
515 | if (instream == stdin && stdin_is_tty) | |
516 | reinitialize_more_filter (); | |
517 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 518 | |
d318976c FN |
519 | /* Get a command-line. This calls the readline package. */ |
520 | command = command_line_input (instream == stdin ? | |
521 | get_prompt () : (char *) NULL, | |
522 | instream == stdin, "prompt"); | |
d318976c FN |
523 | if (command == 0) |
524 | return; | |
c906108c | 525 | |
d318976c | 526 | time_at_cmd_start = get_run_time (); |
c906108c | 527 | |
d318976c | 528 | if (display_space) |
9e0b60a8 | 529 | { |
d318976c | 530 | #ifdef HAVE_SBRK |
d318976c | 531 | char *lim = (char *) sbrk (0); |
6dd77b81 | 532 | space_at_cmd_start = lim - lim_at_start; |
9e0b60a8 | 533 | #endif |
d318976c | 534 | } |
9e0b60a8 | 535 | |
d318976c FN |
536 | execute_command (command, instream == stdin); |
537 | /* Do any commands attached to breakpoint we stopped at. */ | |
538 | bpstat_do_actions (&stop_bpstat); | |
539 | do_cleanups (old_chain); | |
9e0b60a8 | 540 | |
d318976c | 541 | if (display_time) |
9e0b60a8 | 542 | { |
d318976c | 543 | long cmd_time = get_run_time () - time_at_cmd_start; |
9e0b60a8 | 544 | |
a3f17187 | 545 | printf_unfiltered (_("Command execution time: %ld.%06ld\n"), |
d318976c | 546 | cmd_time / 1000000, cmd_time % 1000000); |
9e0b60a8 | 547 | } |
9e0b60a8 | 548 | |
d318976c | 549 | if (display_space) |
9e0b60a8 | 550 | { |
d318976c | 551 | #ifdef HAVE_SBRK |
d318976c | 552 | char *lim = (char *) sbrk (0); |
6dd77b81 | 553 | long space_now = lim - lim_at_start; |
d318976c FN |
554 | long space_diff = space_now - space_at_cmd_start; |
555 | ||
57ee890f | 556 | printf_unfiltered (_("Space used: %ld (%s%ld for this command)\n"), |
d318976c | 557 | space_now, |
57ee890f | 558 | (space_diff >= 0 ? "+" : ""), |
d318976c FN |
559 | space_diff); |
560 | #endif | |
9e0b60a8 | 561 | } |
9e0b60a8 | 562 | } |
9e0b60a8 | 563 | } |
d318976c FN |
564 | \f |
565 | /* Commands call this if they do not want to be repeated by null lines. */ | |
9e0b60a8 | 566 | |
d318976c FN |
567 | void |
568 | dont_repeat (void) | |
9e0b60a8 | 569 | { |
d318976c FN |
570 | if (server_command) |
571 | return; | |
9e0b60a8 | 572 | |
d318976c FN |
573 | /* If we aren't reading from standard input, we are saving the last |
574 | thing read from stdin in line and don't want to delete it. Null lines | |
575 | won't repeat here in any case. */ | |
576 | if (instream == stdin) | |
577 | *line = 0; | |
9e0b60a8 | 578 | } |
d318976c FN |
579 | \f |
580 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 581 | |
d318976c FN |
582 | It prints PROMPT_ARG once at the start. |
583 | Action is compatible with "readline", e.g. space for the result is | |
584 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 585 | |
d318976c FN |
586 | A NULL return means end of file. */ |
587 | char * | |
588 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 589 | { |
d318976c FN |
590 | int c; |
591 | char *result; | |
592 | int input_index = 0; | |
593 | int result_size = 80; | |
9e0b60a8 | 594 | |
d318976c | 595 | if (prompt_arg) |
9e0b60a8 | 596 | { |
d318976c FN |
597 | /* Don't use a _filtered function here. It causes the assumed |
598 | character position to be off, since the newline we read from | |
599 | the user is not accounted for. */ | |
600 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
601 | gdb_flush (gdb_stdout); |
602 | } | |
603 | ||
d318976c | 604 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
605 | |
606 | while (1) | |
607 | { | |
d318976c FN |
608 | /* Read from stdin if we are executing a user defined command. |
609 | This is the right thing for prompt_for_continue, at least. */ | |
610 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 611 | |
d318976c | 612 | if (c == EOF) |
9e0b60a8 | 613 | { |
d318976c FN |
614 | if (input_index > 0) |
615 | /* The last line does not end with a newline. Return it, and | |
616 | if we are called again fgetc will still return EOF and | |
617 | we'll return NULL then. */ | |
9e0b60a8 | 618 | break; |
b8c9b27d | 619 | xfree (result); |
d318976c | 620 | return NULL; |
9e0b60a8 | 621 | } |
c5aa993b | 622 | |
d318976c | 623 | if (c == '\n') |
9e0b60a8 | 624 | { |
d318976c FN |
625 | if (input_index > 0 && result[input_index - 1] == '\r') |
626 | input_index--; | |
627 | break; | |
9e0b60a8 | 628 | } |
9e0b60a8 | 629 | |
d318976c FN |
630 | result[input_index++] = c; |
631 | while (input_index >= result_size) | |
9e0b60a8 | 632 | { |
d318976c FN |
633 | result_size *= 2; |
634 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 635 | } |
9e0b60a8 JM |
636 | } |
637 | ||
d318976c FN |
638 | result[input_index++] = '\0'; |
639 | return result; | |
9e0b60a8 JM |
640 | } |
641 | ||
d318976c FN |
642 | /* Variables which control command line editing and history |
643 | substitution. These variables are given default values at the end | |
644 | of this file. */ | |
645 | static int command_editing_p; | |
920d2a44 | 646 | |
d318976c FN |
647 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
648 | gdb to use the event loop as the default command loop and we merge | |
649 | event-top.c into this file, top.c */ | |
920d2a44 | 650 | |
d318976c | 651 | /* static */ int history_expansion_p; |
920d2a44 | 652 | |
d318976c | 653 | static int write_history_p; |
920d2a44 AC |
654 | static void |
655 | show_write_history_p (struct ui_file *file, int from_tty, | |
656 | struct cmd_list_element *c, const char *value) | |
657 | { | |
658 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
659 | value); | |
660 | } | |
661 | ||
d318976c | 662 | static int history_size; |
920d2a44 AC |
663 | static void |
664 | show_history_size (struct ui_file *file, int from_tty, | |
665 | struct cmd_list_element *c, const char *value) | |
666 | { | |
667 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
668 | value); | |
669 | } | |
670 | ||
d318976c | 671 | static char *history_filename; |
920d2a44 AC |
672 | static void |
673 | show_history_filename (struct ui_file *file, int from_tty, | |
674 | struct cmd_list_element *c, const char *value) | |
675 | { | |
676 | fprintf_filtered (file, _("\ | |
677 | The filename in which to record the command history is \"%s\".\n"), | |
678 | value); | |
679 | } | |
9e0b60a8 | 680 | |
b4f5539f | 681 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 682 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
683 | a single gdb invocation. At the ordinary top-level prompt we might |
684 | be using the async readline. That means we can't use | |
685 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
686 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
687 | `define'), gdb wants a synchronous response. |
688 | ||
689 | We used to call readline() directly, running it in synchronous | |
690 | mode. But mixing modes this way is not supported, and as of | |
691 | readline 5.x it no longer works; the arrow keys come unbound during | |
692 | the synchronous call. So we make a nested call into the event | |
693 | loop. That's what gdb_readline_wrapper is for. */ | |
694 | ||
695 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
696 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
697 | the user types Control-D for EOF. */ | |
698 | static int gdb_readline_wrapper_done; | |
699 | ||
700 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
701 | is seen. */ | |
702 | static char *gdb_readline_wrapper_result; | |
703 | ||
704 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
705 | to be called after the newline is processed (which will redisplay | |
706 | the prompt). But in gdb_readline_wrapper we will not get a new | |
707 | prompt until the next call, or until we return to the event loop. | |
708 | So we disable this hook around the newline and restore it before we | |
709 | return. */ | |
710 | static void (*saved_after_char_processing_hook) (void); | |
711 | ||
712 | /* This function is called when readline has seen a complete line of | |
713 | text. */ | |
714 | ||
715 | static void | |
716 | gdb_readline_wrapper_line (char *line) | |
717 | { | |
718 | gdb_assert (!gdb_readline_wrapper_done); | |
719 | gdb_readline_wrapper_result = line; | |
720 | gdb_readline_wrapper_done = 1; | |
721 | ||
722 | /* Prevent operate-and-get-next from acting too early. */ | |
723 | saved_after_char_processing_hook = after_char_processing_hook; | |
724 | after_char_processing_hook = NULL; | |
1b05479a DJ |
725 | |
726 | /* Prevent parts of the prompt from being redisplayed if annotations | |
727 | are enabled, and readline's state getting out of sync. */ | |
728 | if (async_command_editing_p) | |
729 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
730 | } |
731 | ||
732 | struct gdb_readline_wrapper_cleanup | |
733 | { | |
734 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
735 | int already_prompted_orig; |
736 | }; | |
737 | ||
738 | static void | |
739 | gdb_readline_wrapper_cleanup (void *arg) | |
740 | { | |
741 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
742 | ||
2e03ee74 | 743 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
744 | |
745 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
746 | input_handler = cleanup->handler_orig; | |
747 | gdb_readline_wrapper_result = NULL; | |
748 | gdb_readline_wrapper_done = 0; | |
749 | ||
750 | after_char_processing_hook = saved_after_char_processing_hook; | |
751 | saved_after_char_processing_hook = NULL; | |
752 | ||
753 | xfree (cleanup); | |
754 | } | |
755 | ||
b4f5539f TT |
756 | char * |
757 | gdb_readline_wrapper (char *prompt) | |
758 | { | |
2e03ee74 DJ |
759 | struct cleanup *back_to; |
760 | struct gdb_readline_wrapper_cleanup *cleanup; | |
761 | char *retval; | |
762 | ||
763 | cleanup = xmalloc (sizeof (*cleanup)); | |
764 | cleanup->handler_orig = input_handler; | |
765 | input_handler = gdb_readline_wrapper_line; | |
766 | ||
2e03ee74 DJ |
767 | cleanup->already_prompted_orig = rl_already_prompted; |
768 | ||
769 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
770 | ||
771 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 772 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
773 | rl_already_prompted = 1; |
774 | ||
362646f5 | 775 | if (after_char_processing_hook) |
2e03ee74 DJ |
776 | (*after_char_processing_hook) (); |
777 | gdb_assert (after_char_processing_hook == NULL); | |
778 | ||
779 | /* gdb_do_one_event argument is unused. */ | |
780 | while (gdb_do_one_event (NULL) >= 0) | |
781 | if (gdb_readline_wrapper_done) | |
782 | break; | |
b4f5539f | 783 | |
2e03ee74 DJ |
784 | retval = gdb_readline_wrapper_result; |
785 | do_cleanups (back_to); | |
786 | return retval; | |
b4f5539f TT |
787 | } |
788 | ||
9e0b60a8 | 789 | \f |
d318976c FN |
790 | #ifdef STOP_SIGNAL |
791 | static void | |
792 | stop_sig (int signo) | |
9e0b60a8 | 793 | { |
d318976c FN |
794 | #if STOP_SIGNAL == SIGTSTP |
795 | signal (SIGTSTP, SIG_DFL); | |
46711df8 MK |
796 | #if HAVE_SIGPROCMASK |
797 | { | |
798 | sigset_t zero; | |
799 | ||
800 | sigemptyset (&zero); | |
801 | sigprocmask (SIG_SETMASK, &zero, 0); | |
802 | } | |
803 | #elif HAVE_SIGSETMASK | |
d318976c | 804 | sigsetmask (0); |
46711df8 | 805 | #endif |
d318976c FN |
806 | kill (getpid (), SIGTSTP); |
807 | signal (SIGTSTP, stop_sig); | |
808 | #else | |
809 | signal (STOP_SIGNAL, stop_sig); | |
810 | #endif | |
811 | printf_unfiltered ("%s", get_prompt ()); | |
812 | gdb_flush (gdb_stdout); | |
9e0b60a8 | 813 | |
d318976c FN |
814 | /* Forget about any previous command -- null line now will do nothing. */ |
815 | dont_repeat (); | |
9e0b60a8 | 816 | } |
d318976c | 817 | #endif /* STOP_SIGNAL */ |
9e0b60a8 | 818 | |
d318976c | 819 | /* Initialize signal handlers. */ |
64cdedad EZ |
820 | static void |
821 | float_handler (int signo) | |
822 | { | |
823 | /* This message is based on ANSI C, section 4.7. Note that integer | |
824 | divide by zero causes this, so "float" is a misnomer. */ | |
825 | signal (SIGFPE, float_handler); | |
8a3fe4f8 | 826 | error (_("Erroneous arithmetic operation.")); |
64cdedad EZ |
827 | } |
828 | ||
9e0b60a8 | 829 | static void |
d318976c | 830 | do_nothing (int signo) |
9e0b60a8 | 831 | { |
d318976c FN |
832 | /* Under System V the default disposition of a signal is reinstated after |
833 | the signal is caught and delivered to an application process. On such | |
834 | systems one must restore the replacement signal handler if one wishes | |
835 | to continue handling the signal in one's program. On BSD systems this | |
836 | is not needed but it is harmless, and it simplifies the code to just do | |
837 | it unconditionally. */ | |
838 | signal (signo, do_nothing); | |
9e0b60a8 JM |
839 | } |
840 | ||
467d8519 TT |
841 | /* The current saved history number from operate-and-get-next. |
842 | This is -1 if not valid. */ | |
843 | static int operate_saved_history = -1; | |
844 | ||
845 | /* This is put on the appropriate hook and helps operate-and-get-next | |
846 | do its work. */ | |
b9362cc7 | 847 | static void |
5ae5f592 | 848 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
849 | { |
850 | int delta = where_history () - operate_saved_history; | |
851 | /* The `key' argument to rl_get_previous_history is ignored. */ | |
852 | rl_get_previous_history (delta, 0); | |
853 | operate_saved_history = -1; | |
854 | ||
855 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 856 | rl_redisplay (); |
467d8519 TT |
857 | |
858 | after_char_processing_hook = NULL; | |
859 | rl_pre_input_hook = NULL; | |
860 | } | |
861 | ||
862 | /* This is a gdb-local readline command handler. It accepts the | |
863 | current command line (like RET does) and, if this command was taken | |
864 | from the history, arranges for the next command in the history to | |
865 | appear on the command line when the prompt returns. | |
866 | We ignore the arguments. */ | |
867 | static int | |
868 | gdb_rl_operate_and_get_next (int count, int key) | |
869 | { | |
b5686e99 MK |
870 | int where; |
871 | ||
362646f5 AC |
872 | /* Use the async hook. */ |
873 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 874 | |
b5686e99 MK |
875 | /* Find the current line, and find the next line to use. */ |
876 | where = where_history(); | |
877 | ||
878 | /* FIXME: kettenis/20020817: max_input_history is renamed into | |
879 | history_max_entries in readline-4.2. When we do a new readline | |
880 | import, we should probably change it here too, even though | |
881 | readline maintains backwards compatibility for now by still | |
882 | defining max_input_history. */ | |
883 | if ((history_is_stifled () && (history_length >= max_input_history)) || | |
884 | (where >= history_length - 1)) | |
885 | operate_saved_history = where; | |
886 | else | |
887 | operate_saved_history = where + 1; | |
888 | ||
467d8519 TT |
889 | return rl_newline (1, key); |
890 | } | |
891 | \f | |
d318976c FN |
892 | /* Read one line from the command input stream `instream' |
893 | into the local static buffer `linebuffer' (whose current length | |
894 | is `linelength'). | |
895 | The buffer is made bigger as necessary. | |
896 | Returns the address of the start of the line. | |
9e0b60a8 | 897 | |
d318976c | 898 | NULL is returned for end of file. |
9e0b60a8 | 899 | |
d318976c FN |
900 | *If* the instream == stdin & stdin is a terminal, the line read |
901 | is copied into the file line saver (global var char *line, | |
902 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 903 | |
d318976c FN |
904 | This routine either uses fancy command line editing or |
905 | simple input as the user has requested. */ | |
10689f25 | 906 | |
d318976c FN |
907 | char * |
908 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 909 | { |
d318976c FN |
910 | static char *linebuffer = 0; |
911 | static unsigned linelength = 0; | |
52f0bd74 | 912 | char *p; |
d318976c FN |
913 | char *p1; |
914 | char *rl; | |
915 | char *local_prompt = prompt_arg; | |
916 | char *nline; | |
917 | char got_eof = 0; | |
918 | ||
919 | /* The annotation suffix must be non-NULL. */ | |
920 | if (annotation_suffix == NULL) | |
921 | annotation_suffix = ""; | |
9e0b60a8 | 922 | |
d318976c FN |
923 | if (annotation_level > 1 && instream == stdin) |
924 | { | |
925 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
926 | + strlen (annotation_suffix) + 40); | |
927 | if (prompt_arg == NULL) | |
928 | local_prompt[0] = '\0'; | |
929 | else | |
930 | strcpy (local_prompt, prompt_arg); | |
931 | strcat (local_prompt, "\n\032\032"); | |
932 | strcat (local_prompt, annotation_suffix); | |
933 | strcat (local_prompt, "\n"); | |
934 | } | |
9e0b60a8 | 935 | |
d318976c | 936 | if (linebuffer == 0) |
9e0b60a8 | 937 | { |
d318976c FN |
938 | linelength = 80; |
939 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 940 | } |
9e0b60a8 | 941 | |
d318976c | 942 | p = linebuffer; |
9e0b60a8 | 943 | |
d318976c FN |
944 | /* Control-C quits instantly if typed while in this loop |
945 | since it should not wait until the user types a newline. */ | |
946 | immediate_quit++; | |
947 | #ifdef STOP_SIGNAL | |
948 | if (job_control) | |
362646f5 | 949 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
950 | #endif |
951 | ||
952 | while (1) | |
9e0b60a8 | 953 | { |
d318976c FN |
954 | /* Make sure that all output has been output. Some machines may let |
955 | you get away with leaving out some of the gdb_flush, but not all. */ | |
956 | wrap_here (""); | |
957 | gdb_flush (gdb_stdout); | |
958 | gdb_flush (gdb_stderr); | |
959 | ||
960 | if (source_file_name != NULL) | |
637537d0 | 961 | ++source_line_number; |
d318976c FN |
962 | |
963 | if (annotation_level > 1 && instream == stdin) | |
964 | { | |
306d9ac5 DC |
965 | puts_unfiltered ("\n\032\032pre-"); |
966 | puts_unfiltered (annotation_suffix); | |
967 | puts_unfiltered ("\n"); | |
d318976c FN |
968 | } |
969 | ||
970 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 971 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 972 | { |
9a4105ab | 973 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 974 | } |
698ba934 | 975 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 976 | { |
b4f5539f | 977 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 978 | } |
9e0b60a8 | 979 | else |
d318976c FN |
980 | { |
981 | rl = gdb_readline (local_prompt); | |
982 | } | |
9e0b60a8 | 983 | |
d318976c FN |
984 | if (annotation_level > 1 && instream == stdin) |
985 | { | |
306d9ac5 DC |
986 | puts_unfiltered ("\n\032\032post-"); |
987 | puts_unfiltered (annotation_suffix); | |
988 | puts_unfiltered ("\n"); | |
d318976c | 989 | } |
9e0b60a8 | 990 | |
d318976c | 991 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 992 | { |
d318976c FN |
993 | got_eof = 1; |
994 | break; | |
9e0b60a8 | 995 | } |
d318976c FN |
996 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
997 | { | |
998 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
999 | nline = (char *) xrealloc (linebuffer, linelength); | |
1000 | p += nline - linebuffer; | |
1001 | linebuffer = nline; | |
1002 | } | |
1003 | p1 = rl; | |
1004 | /* Copy line. Don't copy null at end. (Leaves line alone | |
1005 | if this was just a newline) */ | |
1006 | while (*p1) | |
1007 | *p++ = *p1++; | |
9e0b60a8 | 1008 | |
b8c9b27d | 1009 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 1010 | |
d318976c FN |
1011 | if (p == linebuffer || *(p - 1) != '\\') |
1012 | break; | |
9e0b60a8 | 1013 | |
d318976c FN |
1014 | p--; /* Put on top of '\'. */ |
1015 | local_prompt = (char *) 0; | |
1016 | } | |
9e0b60a8 | 1017 | |
d318976c FN |
1018 | #ifdef STOP_SIGNAL |
1019 | if (job_control) | |
1020 | signal (STOP_SIGNAL, SIG_DFL); | |
1021 | #endif | |
1022 | immediate_quit--; | |
9e0b60a8 | 1023 | |
d318976c FN |
1024 | if (got_eof) |
1025 | return NULL; | |
9e0b60a8 | 1026 | |
d318976c FN |
1027 | #define SERVER_COMMAND_LENGTH 7 |
1028 | server_command = | |
1029 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 1030 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 1031 | if (server_command) |
9e0b60a8 | 1032 | { |
d318976c FN |
1033 | /* Note that we don't set `line'. Between this and the check in |
1034 | dont_repeat, this insures that repeating will still do the | |
1035 | right thing. */ | |
1036 | *p = '\0'; | |
1037 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1038 | } |
9e0b60a8 | 1039 | |
d318976c FN |
1040 | /* Do history expansion if that is wished. */ |
1041 | if (history_expansion_p && instream == stdin | |
1042 | && ISATTY (instream)) | |
1043 | { | |
1044 | char *history_value; | |
1045 | int expanded; | |
9e0b60a8 | 1046 | |
d318976c FN |
1047 | *p = '\0'; /* Insert null now. */ |
1048 | expanded = history_expand (linebuffer, &history_value); | |
1049 | if (expanded) | |
1050 | { | |
1051 | /* Print the changes. */ | |
1052 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1053 | |
d318976c FN |
1054 | /* If there was an error, call this function again. */ |
1055 | if (expanded < 0) | |
1056 | { | |
b8c9b27d | 1057 | xfree (history_value); |
d318976c FN |
1058 | return command_line_input (prompt_arg, repeat, annotation_suffix); |
1059 | } | |
1060 | if (strlen (history_value) > linelength) | |
1061 | { | |
1062 | linelength = strlen (history_value) + 1; | |
1063 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1064 | } | |
1065 | strcpy (linebuffer, history_value); | |
1066 | p = linebuffer + strlen (linebuffer); | |
d318976c | 1067 | } |
91d2803c | 1068 | xfree (history_value); |
d318976c | 1069 | } |
9e0b60a8 | 1070 | |
d318976c FN |
1071 | /* If we just got an empty line, and that is supposed |
1072 | to repeat the previous command, return the value in the | |
1073 | global buffer. */ | |
1074 | if (repeat && p == linebuffer) | |
1075 | return line; | |
1076 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); | |
1077 | if (repeat && !*p1) | |
1078 | return line; | |
9e0b60a8 | 1079 | |
d318976c | 1080 | *p = 0; |
9e0b60a8 | 1081 | |
d318976c FN |
1082 | /* Add line to history if appropriate. */ |
1083 | if (instream == stdin | |
1084 | && ISATTY (stdin) && *linebuffer) | |
1085 | add_history (linebuffer); | |
9e0b60a8 | 1086 | |
d318976c FN |
1087 | /* Note: lines consisting solely of comments are added to the command |
1088 | history. This is useful when you type a command, and then | |
1089 | realize you don't want to execute it quite yet. You can comment | |
1090 | out the command and then later fetch it from the value history | |
1091 | and remove the '#'. The kill ring is probably better, but some | |
1092 | people are in the habit of commenting things out. */ | |
1093 | if (*p1 == '#') | |
1094 | *p1 = '\0'; /* Found a comment. */ | |
9e0b60a8 | 1095 | |
d318976c FN |
1096 | /* Save into global buffer if appropriate. */ |
1097 | if (repeat) | |
1098 | { | |
1099 | if (linelength > linesize) | |
1100 | { | |
1101 | line = xrealloc (line, linelength); | |
1102 | linesize = linelength; | |
1103 | } | |
1104 | strcpy (line, linebuffer); | |
1105 | return line; | |
1106 | } | |
9e0b60a8 | 1107 | |
d318976c | 1108 | return linebuffer; |
9e0b60a8 JM |
1109 | } |
1110 | \f | |
1111 | /* Print the GDB banner. */ | |
1112 | void | |
fba45db2 | 1113 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1114 | { |
1115 | /* From GNU coding standards, first line is meant to be easy for a | |
1116 | program to parse, and is just canonical program name and version | |
1117 | number, which starts after last space. */ | |
1118 | ||
c16158bc | 1119 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 JM |
1120 | |
1121 | /* Second line is a copyright notice. */ | |
1122 | ||
636265b6 | 1123 | fprintf_filtered (stream, "Copyright (C) 2008 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1124 | |
1125 | /* Following the copyright is a brief statement that the program is | |
1126 | free software, that users are free to copy and change it on | |
1127 | certain conditions, that it is covered by the GNU GPL, and that | |
1128 | there is no warranty. */ | |
1129 | ||
1130 | fprintf_filtered (stream, "\ | |
b8533aec DJ |
1131 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n\ |
1132 | This is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1133 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1134 | and \"show warranty\" for details.\n"); |
9e0b60a8 JM |
1135 | |
1136 | /* After the required info we print the configuration information. */ | |
1137 | ||
1138 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1139 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 JM |
1140 | { |
1141 | fprintf_filtered (stream, "--host=%s --target=%s", host_name, target_name); | |
1142 | } | |
1143 | else | |
1144 | { | |
1145 | fprintf_filtered (stream, "%s", host_name); | |
1146 | } | |
1147 | fprintf_filtered (stream, "\"."); | |
c16158bc JM |
1148 | |
1149 | if (REPORT_BUGS_TO[0]) | |
1150 | { | |
1151 | fprintf_filtered (stream, | |
1152 | _("\nFor bug reporting instructions, please see:\n")); | |
7949220d | 1153 | fprintf_filtered (stream, "%s.", REPORT_BUGS_TO); |
c16158bc | 1154 | } |
9e0b60a8 | 1155 | } |
9e0b60a8 JM |
1156 | \f |
1157 | /* get_prompt: access method for the GDB prompt string. */ | |
1158 | ||
9e0b60a8 | 1159 | char * |
fba45db2 | 1160 | get_prompt (void) |
9e0b60a8 | 1161 | { |
362646f5 | 1162 | return PROMPT (0); |
9e0b60a8 JM |
1163 | } |
1164 | ||
1165 | void | |
fba45db2 | 1166 | set_prompt (char *s) |
9e0b60a8 JM |
1167 | { |
1168 | /* ??rehrauer: I don't know why this fails, since it looks as though | |
1169 | assignments to prompt are wrapped in calls to savestring... | |
c5aa993b | 1170 | if (prompt != NULL) |
b8c9b27d | 1171 | xfree (prompt); |
c5aa993b | 1172 | */ |
362646f5 | 1173 | PROMPT (0) = savestring (s, strlen (s)); |
9e0b60a8 | 1174 | } |
9e0b60a8 | 1175 | \f |
c5aa993b | 1176 | |
9e0b60a8 JM |
1177 | /* If necessary, make the user confirm that we should quit. Return |
1178 | non-zero if we should quit, zero if we shouldn't. */ | |
1179 | ||
1180 | int | |
fba45db2 | 1181 | quit_confirm (void) |
9e0b60a8 | 1182 | { |
39f77062 | 1183 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
9e0b60a8 JM |
1184 | { |
1185 | char *s; | |
1186 | ||
1187 | /* This is something of a hack. But there's no reliable way to | |
c5aa993b JM |
1188 | see if a GUI is running. The `use_windows' variable doesn't |
1189 | cut it. */ | |
9a4105ab | 1190 | if (deprecated_init_ui_hook) |
9e0b60a8 JM |
1191 | s = "A debugging session is active.\nDo you still want to close the debugger?"; |
1192 | else if (attach_flag) | |
1193 | s = "The program is running. Quit anyway (and detach it)? "; | |
1194 | else | |
b21991b0 | 1195 | s = "The program is running. Quit anyway (and kill it)? "; |
9e0b60a8 | 1196 | |
306d9ac5 | 1197 | if (!query ("%s", s)) |
9e0b60a8 JM |
1198 | return 0; |
1199 | } | |
1200 | ||
1201 | return 1; | |
1202 | } | |
1203 | ||
b0abbc58 | 1204 | /* Helper routine for quit_force that requires error handling. */ |
9e0b60a8 | 1205 | |
b0abbc58 | 1206 | struct qt_args |
9e0b60a8 | 1207 | { |
b0abbc58 JJ |
1208 | char *args; |
1209 | int from_tty; | |
1210 | }; | |
9e0b60a8 | 1211 | |
b0abbc58 JJ |
1212 | static int |
1213 | quit_target (void *arg) | |
1214 | { | |
1215 | struct qt_args *qt = (struct qt_args *)arg; | |
9e0b60a8 | 1216 | |
39f77062 | 1217 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
9e0b60a8 JM |
1218 | { |
1219 | if (attach_flag) | |
b0abbc58 | 1220 | target_detach (qt->args, qt->from_tty); |
9e0b60a8 | 1221 | else |
b0abbc58 | 1222 | target_kill (); |
9e0b60a8 JM |
1223 | } |
1224 | ||
aa76d38d PA |
1225 | /* Give all pushed targets a chance to do minimal cleanup, and pop |
1226 | them all out. */ | |
1227 | pop_all_targets (1); | |
9e0b60a8 JM |
1228 | |
1229 | /* Save the history information if it is appropriate to do so. */ | |
1230 | if (write_history_p && history_filename) | |
1231 | write_history (history_filename); | |
1232 | ||
c5aa993b | 1233 | do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before exiting */ |
9e0b60a8 | 1234 | |
b0abbc58 JJ |
1235 | return 0; |
1236 | } | |
1237 | ||
1238 | /* Quit without asking for confirmation. */ | |
1239 | ||
1240 | void | |
1241 | quit_force (char *args, int from_tty) | |
1242 | { | |
1243 | int exit_code = 0; | |
365c70b1 | 1244 | struct qt_args qt; |
b0abbc58 JJ |
1245 | |
1246 | /* An optional expression may be used to cause gdb to terminate with the | |
1247 | value of that expression. */ | |
1248 | if (args) | |
1249 | { | |
1250 | struct value *val = parse_and_eval (args); | |
1251 | ||
1252 | exit_code = (int) value_as_long (val); | |
1253 | } | |
4b0ad762 AS |
1254 | else if (return_child_result) |
1255 | exit_code = return_child_result_value; | |
b0abbc58 | 1256 | |
365c70b1 JJ |
1257 | qt.args = args; |
1258 | qt.from_tty = from_tty; | |
1259 | ||
b0abbc58 | 1260 | /* We want to handle any quit errors and exit regardless. */ |
365c70b1 | 1261 | catch_errors (quit_target, &qt, |
b0abbc58 JJ |
1262 | "Quitting: ", RETURN_MASK_ALL); |
1263 | ||
9e0b60a8 JM |
1264 | exit (exit_code); |
1265 | } | |
1266 | ||
698ba934 DJ |
1267 | /* Returns whether GDB is running on a terminal and input is |
1268 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1269 | |
1270 | int | |
fba45db2 | 1271 | input_from_terminal_p (void) |
9e0b60a8 | 1272 | { |
698ba934 DJ |
1273 | if (gdb_has_a_terminal () && instream == stdin) |
1274 | return 1; | |
1275 | ||
1276 | /* If INSTREAM is unset, and we are not in a user command, we | |
1277 | must be in Insight. That's like having a terminal, for our | |
1278 | purposes. */ | |
1279 | if (instream == NULL && !in_user_command) | |
1280 | return 1; | |
1281 | ||
1282 | return 0; | |
9e0b60a8 JM |
1283 | } |
1284 | \f | |
9e0b60a8 | 1285 | static void |
fba45db2 | 1286 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1287 | { |
c5aa993b JM |
1288 | *line = 0; /* Can't call dont_repeat here because we're not |
1289 | necessarily reading from stdin. */ | |
9e0b60a8 JM |
1290 | } |
1291 | \f | |
1292 | /* Functions to manipulate command line editing control variables. */ | |
1293 | ||
1294 | /* Number of commands to print in each call to show_commands. */ | |
1295 | #define Hist_print 10 | |
d318976c | 1296 | void |
fba45db2 | 1297 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1298 | { |
1299 | /* Index for history commands. Relative to history_base. */ | |
1300 | int offset; | |
1301 | ||
1302 | /* Number of the history entry which we are planning to display next. | |
1303 | Relative to history_base. */ | |
1304 | static int num = 0; | |
1305 | ||
1306 | /* The first command in the history which doesn't exist (i.e. one more | |
1307 | than the number of the last command). Relative to history_base. */ | |
1308 | int hist_len; | |
1309 | ||
9e0b60a8 JM |
1310 | /* Print out some of the commands from the command history. */ |
1311 | /* First determine the length of the history list. */ | |
1312 | hist_len = history_size; | |
1313 | for (offset = 0; offset < history_size; offset++) | |
1314 | { | |
1315 | if (!history_get (history_base + offset)) | |
1316 | { | |
1317 | hist_len = offset; | |
1318 | break; | |
1319 | } | |
1320 | } | |
1321 | ||
1322 | if (args) | |
1323 | { | |
1324 | if (args[0] == '+' && args[1] == '\0') | |
1325 | /* "info editing +" should print from the stored position. */ | |
1326 | ; | |
1327 | else | |
1328 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1329 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1330 | } |
1331 | /* "show commands" means print the last Hist_print commands. */ | |
1332 | else | |
1333 | { | |
1334 | num = hist_len - Hist_print; | |
1335 | } | |
1336 | ||
1337 | if (num < 0) | |
1338 | num = 0; | |
1339 | ||
1340 | /* If there are at least Hist_print commands, we want to display the last | |
1341 | Hist_print rather than, say, the last 6. */ | |
1342 | if (hist_len - num < Hist_print) | |
1343 | { | |
1344 | num = hist_len - Hist_print; | |
1345 | if (num < 0) | |
1346 | num = 0; | |
1347 | } | |
1348 | ||
1349 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1350 | { | |
1351 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1352 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1353 | } |
1354 | ||
1355 | /* The next command we want to display is the next one that we haven't | |
1356 | displayed yet. */ | |
1357 | num += Hist_print; | |
1358 | ||
1359 | /* If the user repeats this command with return, it should do what | |
1360 | "show commands +" does. This is unnecessary if arg is null, | |
1361 | because "show commands +" is not useful after "show commands". */ | |
1362 | if (from_tty && args) | |
1363 | { | |
1364 | args[0] = '+'; | |
1365 | args[1] = '\0'; | |
1366 | } | |
1367 | } | |
1368 | ||
1369 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1370 | static void |
fba45db2 | 1371 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1372 | { |
1373 | if (history_size == INT_MAX) | |
1374 | unstifle_history (); | |
1375 | else if (history_size >= 0) | |
1376 | stifle_history (history_size); | |
1377 | else | |
1378 | { | |
1379 | history_size = INT_MAX; | |
8a3fe4f8 | 1380 | error (_("History size must be non-negative")); |
9e0b60a8 JM |
1381 | } |
1382 | } | |
1383 | ||
d318976c | 1384 | void |
fba45db2 | 1385 | set_history (char *args, int from_tty) |
9e0b60a8 | 1386 | { |
a3f17187 | 1387 | printf_unfiltered (_("\"set history\" must be followed by the name of a history subcommand.\n")); |
9e0b60a8 JM |
1388 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1389 | } | |
1390 | ||
d318976c | 1391 | void |
fba45db2 | 1392 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1393 | { |
1394 | cmd_show_list (showhistlist, from_tty, ""); | |
1395 | } | |
1396 | ||
1397 | int info_verbose = 0; /* Default verbose msgs off */ | |
1398 | ||
1399 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1400 | void |
fba45db2 | 1401 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1402 | { |
1403 | char *cmdname = "verbose"; | |
1404 | struct cmd_list_element *showcmd; | |
1405 | ||
1406 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1407 | ||
1408 | if (info_verbose) | |
1409 | { | |
1410 | c->doc = "Set verbose printing of informational messages."; | |
1411 | showcmd->doc = "Show verbose printing of informational messages."; | |
1412 | } | |
1413 | else | |
1414 | { | |
1415 | c->doc = "Set verbosity."; | |
1416 | showcmd->doc = "Show verbosity."; | |
1417 | } | |
1418 | } | |
1419 | ||
9e0b60a8 JM |
1420 | /* Init the history buffer. Note that we are called after the init file(s) |
1421 | * have been read so that the user can change the history file via his | |
1422 | * .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1423 | * overrides all of this. | |
1424 | */ | |
1425 | ||
1426 | void | |
fba45db2 | 1427 | init_history (void) |
9e0b60a8 JM |
1428 | { |
1429 | char *tmpenv; | |
1430 | ||
1431 | tmpenv = getenv ("HISTSIZE"); | |
1432 | if (tmpenv) | |
1433 | history_size = atoi (tmpenv); | |
1434 | else if (!history_size) | |
1435 | history_size = 256; | |
1436 | ||
1437 | stifle_history (history_size); | |
1438 | ||
1439 | tmpenv = getenv ("GDBHISTFILE"); | |
1440 | if (tmpenv) | |
c5aa993b JM |
1441 | history_filename = savestring (tmpenv, strlen (tmpenv)); |
1442 | else if (!history_filename) | |
1443 | { | |
1444 | /* We include the current directory so that if the user changes | |
1445 | directories the file written will be the same as the one | |
1446 | that was read. */ | |
a0b3c4fd | 1447 | #ifdef __MSDOS__ |
eb2f494a | 1448 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1449 | history_filename = concat (current_directory, "/_gdb_history", |
1450 | (char *)NULL); | |
a0b3c4fd | 1451 | #else |
1754f103 MK |
1452 | history_filename = concat (current_directory, "/.gdb_history", |
1453 | (char *)NULL); | |
a0b3c4fd | 1454 | #endif |
c5aa993b | 1455 | } |
9e0b60a8 JM |
1456 | read_history (history_filename); |
1457 | } | |
1458 | ||
920d2a44 AC |
1459 | static void |
1460 | show_new_async_prompt (struct ui_file *file, int from_tty, | |
1461 | struct cmd_list_element *c, const char *value) | |
1462 | { | |
1463 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1464 | } | |
1465 | ||
1466 | static void | |
1467 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1468 | struct cmd_list_element *c, const char *value) | |
1469 | { | |
1470 | fprintf_filtered (file, _("\ | |
1471 | Editing of command lines as they are typed is %s.\n"), | |
1472 | value); | |
1473 | } | |
1474 | ||
1475 | static void | |
1476 | show_annotation_level (struct ui_file *file, int from_tty, | |
1477 | struct cmd_list_element *c, const char *value) | |
1478 | { | |
1479 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1480 | } | |
1481 | ||
1482 | static void | |
1483 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1484 | struct cmd_list_element *c, const char *value) | |
1485 | { | |
1486 | fprintf_filtered (file, _("\ | |
1487 | Notification of completion for asynchronous execution commands is %s.\n"), | |
1488 | value); | |
1489 | } | |
9e0b60a8 | 1490 | static void |
fba45db2 | 1491 | init_main (void) |
9e0b60a8 JM |
1492 | { |
1493 | struct cmd_list_element *c; | |
1494 | ||
362646f5 AC |
1495 | /* initialize the prompt stack to a simple "(gdb) " prompt or to |
1496 | whatever the DEFAULT_PROMPT is. */ | |
1497 | the_prompts.top = 0; | |
1498 | PREFIX (0) = ""; | |
1499 | PROMPT (0) = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT)); | |
1500 | SUFFIX (0) = ""; | |
1501 | /* Set things up for annotation_level > 1, if the user ever decides | |
1502 | to use it. */ | |
1503 | async_annotation_suffix = "prompt"; | |
1504 | /* Set the variable associated with the setshow prompt command. */ | |
1505 | new_async_prompt = savestring (PROMPT (0), strlen (PROMPT (0))); | |
1506 | ||
1507 | /* If gdb was started with --annotate=2, this is equivalent to the | |
1508 | user entering the command 'set annotate 2' at the gdb prompt, so | |
1509 | we need to do extra processing. */ | |
1510 | if (annotation_level > 1) | |
1511 | set_async_annotation_level (NULL, 0, NULL); | |
9e0b60a8 JM |
1512 | |
1513 | /* Set the important stuff up for command editing. */ | |
1514 | command_editing_p = 1; | |
9e0b60a8 JM |
1515 | history_expansion_p = 0; |
1516 | write_history_p = 0; | |
1517 | ||
1518 | /* Setup important stuff for command line editing. */ | |
38017ce8 | 1519 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1520 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1521 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1522 | rl_readline_name = "gdb"; |
7cb3ec5e | 1523 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1524 | |
467d8519 TT |
1525 | /* The name for this defun comes from Bash, where it originated. |
1526 | 15 is Control-o, the same binding this function has in Bash. */ | |
1527 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1528 | ||
4d28ad1e AC |
1529 | add_setshow_string_cmd ("prompt", class_support, |
1530 | &new_async_prompt, _("\ | |
1531 | Set gdb's prompt"), _("\ | |
1532 | Show gdb's prompt"), NULL, | |
1533 | set_async_prompt, | |
920d2a44 | 1534 | show_new_async_prompt, |
4d28ad1e | 1535 | &setlist, &showlist); |
9e0b60a8 | 1536 | |
1bedd215 AC |
1537 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
1538 | Don't repeat this command.\n\ | |
9e0b60a8 | 1539 | Primarily used inside of user-defined commands that should not be repeated when\n\ |
1bedd215 | 1540 | hitting return.")); |
9e0b60a8 | 1541 | |
5bf193a2 AC |
1542 | add_setshow_boolean_cmd ("editing", class_support, |
1543 | &async_command_editing_p, _("\ | |
1544 | Set editing of command lines as they are typed."), _("\ | |
1545 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1546 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1547 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1548 | EMACS-like or VI-like commands like control-P or ESC."), |
1549 | set_async_editing_command, | |
920d2a44 | 1550 | show_async_command_editing_p, |
5bf193a2 AC |
1551 | &setlist, &showlist); |
1552 | ||
1553 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1554 | Set saving of the history record on exit."), _("\ | |
1555 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1556 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1557 | Without an argument, saving is enabled."), |
1558 | NULL, | |
920d2a44 | 1559 | show_write_history_p, |
5bf193a2 | 1560 | &sethistlist, &showhistlist); |
9e0b60a8 | 1561 | |
4d28ad1e AC |
1562 | add_setshow_integer_cmd ("size", no_class, &history_size, _("\ |
1563 | Set the size of the command history,"), _("\ | |
1564 | Show the size of the command history,"), _("\ | |
1565 | ie. the number of previous commands to keep a record of."), | |
1566 | set_history_size_command, | |
920d2a44 | 1567 | show_history_size, |
4d28ad1e AC |
1568 | &sethistlist, &showhistlist); |
1569 | ||
1570 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1571 | Set the filename in which to record the command history"), _("\ | |
1572 | Show the filename in which to record the command history"), _("\ | |
1573 | (the list of previous commands of which a record is kept)."), | |
1574 | NULL, | |
920d2a44 | 1575 | show_history_filename, |
4d28ad1e | 1576 | &sethistlist, &showhistlist); |
9e0b60a8 | 1577 | |
5bf193a2 AC |
1578 | add_setshow_boolean_cmd ("confirm", class_support, &caution, _("\ |
1579 | Set whether to confirm potentially dangerous operations."), _("\ | |
1580 | Show whether to confirm potentially dangerous operations."), NULL, | |
1581 | NULL, | |
920d2a44 | 1582 | show_caution, |
5bf193a2 | 1583 | &setlist, &showlist); |
9e0b60a8 | 1584 | |
85c07804 AC |
1585 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1586 | Set annotation_level."), _("\ | |
1587 | Show annotation_level."), _("\ | |
9e0b60a8 | 1588 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 AC |
1589 | 2 == output annotated suitably for use by programs that control GDB."), |
1590 | set_async_annotation_level, | |
920d2a44 | 1591 | show_annotation_level, |
85c07804 | 1592 | &setlist, &showlist); |
362646f5 | 1593 | |
5bf193a2 AC |
1594 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1595 | &exec_done_display_p, _("\ | |
1596 | Set notification of completion for asynchronous execution commands."), _("\ | |
1597 | Show notification of completion for asynchronous execution commands."), _("\ | |
1598 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1599 | NULL, | |
920d2a44 | 1600 | show_exec_done_display_p, |
5bf193a2 | 1601 | &setlist, &showlist); |
9e0b60a8 | 1602 | } |
64cdedad EZ |
1603 | |
1604 | void | |
1605 | gdb_init (char *argv0) | |
1606 | { | |
1607 | if (pre_init_ui_hook) | |
1608 | pre_init_ui_hook (); | |
1609 | ||
1610 | /* Run the init function of each source file */ | |
1611 | ||
1612 | getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
1613 | current_directory = gdb_dirbuf; | |
1614 | ||
1615 | #ifdef __MSDOS__ | |
1616 | /* Make sure we return to the original directory upon exit, come | |
1617 | what may, since the OS doesn't do that for us. */ | |
1618 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1619 | #endif | |
1620 | ||
1621 | init_cmd_lists (); /* This needs to be done first */ | |
1622 | initialize_targets (); /* Setup target_terminal macros for utils.c */ | |
1623 | initialize_utils (); /* Make errors and warnings possible */ | |
1624 | initialize_all_files (); | |
1625 | initialize_current_architecture (); | |
1626 | init_cli_cmds(); | |
1627 | init_main (); /* But that omits this file! Do it now */ | |
1628 | ||
0ea3f30e DJ |
1629 | initialize_stdin_serial (); |
1630 | ||
362646f5 | 1631 | async_init_signals (); |
64cdedad EZ |
1632 | |
1633 | /* We need a default language for parsing expressions, so simple things like | |
1634 | "set width 0" won't fail if no language is explicitly set in a config file | |
1635 | or implicitly set by reading an executable during startup. */ | |
1636 | set_language (language_c); | |
1637 | expected_language = current_language; /* don't warn about the change. */ | |
1638 | ||
9a4105ab AC |
1639 | /* Allow another UI to initialize. If the UI fails to initialize, |
1640 | and it wants GDB to revert to the CLI, it should clear | |
1641 | deprecated_init_ui_hook. */ | |
1642 | if (deprecated_init_ui_hook) | |
1643 | deprecated_init_ui_hook (argv0); | |
64cdedad | 1644 | } |