Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
6aba47ca DJ |
3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 | |
a752853e | 5 | 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" |
c906108c SS |
49 | |
50 | /* readline include files */ | |
dbda9972 AC |
51 | #include "readline/readline.h" |
52 | #include "readline/history.h" | |
c906108c SS |
53 | |
54 | /* readline defines this. */ | |
55 | #undef savestring | |
56 | ||
57 | #include <sys/types.h> | |
c906108c | 58 | |
c2c6d25f | 59 | #include "event-top.h" |
c906108c SS |
60 | #include "gdb_string.h" |
61 | #include "gdb_stat.h" | |
62 | #include <ctype.h> | |
8b93c638 JM |
63 | #include "ui-out.h" |
64 | #include "cli-out.h" | |
c906108c | 65 | |
104c1213 JM |
66 | /* Default command line prompt. This is overriden in some configs. */ |
67 | ||
68 | #ifndef DEFAULT_PROMPT | |
69 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
70 | #endif |
71 | ||
72 | /* Initialization file name for gdb. This is overridden in some configs. */ | |
73 | ||
eaae3919 EZ |
74 | #ifndef PATH_MAX |
75 | # ifdef FILENAME_MAX | |
76 | # define PATH_MAX FILENAME_MAX | |
77 | # else | |
78 | # define PATH_MAX 512 | |
79 | # endif | |
80 | #endif | |
81 | ||
c906108c SS |
82 | #ifndef GDBINIT_FILENAME |
83 | #define GDBINIT_FILENAME ".gdbinit" | |
84 | #endif | |
eaae3919 | 85 | char gdbinit[PATH_MAX + 1] = GDBINIT_FILENAME; |
c906108c SS |
86 | |
87 | int inhibit_gdbinit = 0; | |
88 | ||
89 | /* If nonzero, and GDB has been configured to be able to use windows, | |
90 | attempt to open them upon startup. */ | |
91 | ||
f15ab4a7 | 92 | int use_windows = 0; |
c906108c | 93 | |
c906108c SS |
94 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
95 | ||
96 | /* Flag for whether we want all the "from_tty" gubbish printed. */ | |
97 | ||
c5aa993b | 98 | int caution = 1; /* Default is yes, sigh. */ |
920d2a44 AC |
99 | static void |
100 | show_caution (struct ui_file *file, int from_tty, | |
101 | struct cmd_list_element *c, const char *value) | |
102 | { | |
103 | fprintf_filtered (file, _("\ | |
104 | Whether to confirm potentially dangerous operations is %s.\n"), | |
105 | value); | |
106 | } | |
c906108c | 107 | |
c906108c SS |
108 | /* stdio stream that command input is being read from. Set to stdin normally. |
109 | Set by source_command to the file we are sourcing. Set to NULL if we are | |
110 | executing a user-defined command or interacting via a GUI. */ | |
111 | ||
112 | FILE *instream; | |
113 | ||
698ba934 DJ |
114 | /* Flag to indicate whether a user defined command is currently running. */ |
115 | ||
116 | int in_user_command; | |
117 | ||
c906108c SS |
118 | /* Current working directory. */ |
119 | ||
120 | char *current_directory; | |
121 | ||
122 | /* The directory name is actually stored here (usually). */ | |
123 | char gdb_dirbuf[1024]; | |
124 | ||
125 | /* Function to call before reading a command, if nonzero. | |
126 | The function receives two args: an input stream, | |
127 | and a prompt string. */ | |
128 | ||
507f3c78 | 129 | void (*window_hook) (FILE *, char *); |
c906108c SS |
130 | |
131 | int epoch_interface; | |
132 | int xgdb_verbose; | |
133 | ||
134 | /* gdb prints this when reading a command interactively */ | |
c5aa993b | 135 | static char *gdb_prompt_string; /* the global prompt string */ |
c906108c SS |
136 | |
137 | /* Buffer used for reading command lines, and the size | |
138 | allocated for it so far. */ | |
139 | ||
140 | char *line; | |
141 | int linesize = 100; | |
142 | ||
143 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 144 | affects things like recording into the command history, commands |
c906108c SS |
145 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
146 | whatever) can issue its own commands and also send along commands | |
147 | from the user, and have the user not notice that the user interface | |
148 | is issuing commands too. */ | |
149 | int server_command; | |
150 | ||
151 | /* Baud rate specified for talking to serial target systems. Default | |
152 | is left as -1, so targets can choose their own defaults. */ | |
153 | /* FIXME: This means that "show remotebaud" and gr_files_info can print -1 | |
154 | or (unsigned int)-1. This is a Bad User Interface. */ | |
155 | ||
156 | int baud_rate = -1; | |
157 | ||
158 | /* Timeout limit for response from target. */ | |
159 | ||
ce808e91 AC |
160 | /* The default value has been changed many times over the years. It |
161 | was originally 5 seconds. But that was thought to be a long time | |
162 | to sit and wait, so it was changed to 2 seconds. That was thought | |
163 | to be plenty unless the connection was going through some terminal | |
164 | server or multiplexer or other form of hairy serial connection. | |
165 | ||
166 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
167 | it began being used in other remote-* targets. It appears that the | |
168 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 169 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
170 | |
171 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
172 | 20 seconds is far worse. This demonstrates the difficulty of using | |
173 | a single variable for all protocol timeouts. | |
174 | ||
175 | As remote.c is used much more than remote-e7000.c, it was changed | |
176 | back to 2 seconds in 1999. */ | |
177 | ||
178 | int remote_timeout = 2; | |
c906108c SS |
179 | |
180 | /* Non-zero tells remote* modules to output debugging info. */ | |
181 | ||
182 | int remote_debug = 0; | |
183 | ||
43ff13b4 JM |
184 | /* Non-zero means the target is running. Note: this is different from |
185 | saying that there is an active target and we are stopped at a | |
186 | breakpoint, for instance. This is a real indicator whether the | |
187 | target is off and running, which gdb is doing something else. */ | |
188 | int target_executing = 0; | |
189 | ||
6dd77b81 RH |
190 | /* Sbrk location on entry to main. Used for statistics only. */ |
191 | #ifdef HAVE_SBRK | |
192 | char *lim_at_start; | |
193 | #endif | |
194 | ||
c906108c SS |
195 | /* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT. */ |
196 | ||
197 | #ifndef STOP_SIGNAL | |
198 | #ifdef SIGTSTP | |
199 | #define STOP_SIGNAL SIGTSTP | |
a14ed312 | 200 | static void stop_sig (int); |
c906108c SS |
201 | #endif |
202 | #endif | |
203 | ||
c906108c SS |
204 | /* Hooks for alternate command interfaces. */ |
205 | ||
206 | /* Called after most modules have been initialized, but before taking users | |
1ad24239 KS |
207 | command file. |
208 | ||
209 | If the UI fails to initialize and it wants GDB to continue | |
210 | using the default UI, then it should clear this hook before returning. */ | |
c906108c | 211 | |
9a4105ab | 212 | void (*deprecated_init_ui_hook) (char *argv0); |
7a292a7a SS |
213 | |
214 | /* This hook is called from within gdb's many mini-event loops which could | |
215 | steal control from a real user interface's event loop. It returns | |
216 | non-zero if the user is requesting a detach, zero otherwise. */ | |
217 | ||
98bbd631 | 218 | int (*deprecated_ui_loop_hook) (int); |
c906108c SS |
219 | |
220 | /* Called instead of command_loop at top level. Can be invoked via | |
b5a2688f | 221 | throw_exception(). */ |
c906108c | 222 | |
9a4105ab | 223 | void (*deprecated_command_loop_hook) (void); |
c906108c SS |
224 | |
225 | ||
c906108c SS |
226 | /* Called from print_frame_info to list the line we stopped in. */ |
227 | ||
9a4105ab AC |
228 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, int line, |
229 | int stopline, int noerror); | |
c906108c SS |
230 | /* Replaces most of query. */ |
231 | ||
9a4105ab | 232 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
233 | |
234 | /* Replaces most of warning. */ | |
235 | ||
9a4105ab | 236 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 237 | |
9a4105ab AC |
238 | /* These three functions support getting lines of text from the user. |
239 | They are used in sequence. First deprecated_readline_begin_hook is | |
240 | called with a text string that might be (for example) a message for | |
241 | the user to type in a sequence of commands to be executed at a | |
242 | breakpoint. If this function calls back to a GUI, it might take | |
243 | this opportunity to pop up a text interaction window with this | |
244 | message. Next, deprecated_readline_hook is called with a prompt | |
245 | that is emitted prior to collecting the user input. It can be | |
246 | called multiple times. Finally, deprecated_readline_end_hook is | |
247 | called to notify the GUI that we are done with the interaction | |
248 | window and it can close it. */ | |
c906108c | 249 | |
9a4105ab AC |
250 | void (*deprecated_readline_begin_hook) (char *, ...); |
251 | char *(*deprecated_readline_hook) (char *); | |
252 | void (*deprecated_readline_end_hook) (void); | |
c906108c SS |
253 | |
254 | /* Called as appropriate to notify the interface of the specified breakpoint | |
255 | conditions. */ | |
256 | ||
9a4105ab AC |
257 | void (*deprecated_create_breakpoint_hook) (struct breakpoint * bpt); |
258 | void (*deprecated_delete_breakpoint_hook) (struct breakpoint * bpt); | |
259 | void (*deprecated_modify_breakpoint_hook) (struct breakpoint * bpt); | |
c906108c | 260 | |
6426a772 JM |
261 | /* Called as appropriate to notify the interface that we have attached |
262 | to or detached from an already running process. */ | |
263 | ||
9a4105ab AC |
264 | void (*deprecated_attach_hook) (void); |
265 | void (*deprecated_detach_hook) (void); | |
6426a772 | 266 | |
c906108c SS |
267 | /* Called during long calculations to allow GUI to repair window damage, and to |
268 | check for stop buttons, etc... */ | |
269 | ||
9a4105ab | 270 | void (*deprecated_interactive_hook) (void); |
c906108c | 271 | |
c906108c SS |
272 | /* Tell the GUI someone changed the register REGNO. -1 means |
273 | that the caller does not know which register changed or | |
c5aa993b | 274 | that several registers have changed (see value_assign). */ |
9a4105ab | 275 | void (*deprecated_register_changed_hook) (int regno); |
c906108c SS |
276 | |
277 | /* Tell the GUI someone changed LEN bytes of memory at ADDR */ | |
9a4105ab | 278 | void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len); |
c906108c SS |
279 | |
280 | /* Called when going to wait for the target. Usually allows the GUI to run | |
281 | while waiting for target events. */ | |
282 | ||
9a4105ab AC |
283 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
284 | struct target_waitstatus * status); | |
c906108c SS |
285 | |
286 | /* Used by UI as a wrapper around command execution. May do various things | |
287 | like enabling/disabling buttons, etc... */ | |
288 | ||
9a4105ab AC |
289 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, char *cmd, |
290 | int from_tty); | |
c906108c | 291 | |
96baa820 JM |
292 | /* Called after a `set' command has finished. Is only run if the |
293 | `set' command succeeded. */ | |
294 | ||
9a4105ab | 295 | void (*deprecated_set_hook) (struct cmd_list_element * c); |
96baa820 | 296 | |
c906108c SS |
297 | /* Called when the current thread changes. Argument is thread id. */ |
298 | ||
9a4105ab | 299 | void (*deprecated_context_hook) (int id); |
c906108c SS |
300 | |
301 | /* Takes control from error (). Typically used to prevent longjmps out of the | |
302 | middle of the GUI. Usually used in conjunction with a catch routine. */ | |
303 | ||
c40d0d10 | 304 | void (*deprecated_error_hook) (void); |
11cf8741 | 305 | |
c906108c SS |
306 | /* Handler for SIGHUP. */ |
307 | ||
308 | #ifdef SIGHUP | |
392a587b | 309 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 SS |
310 | gdb to use the event loop as the default command loop and we merge |
311 | event-top.c into this file, top.c */ | |
312 | /* static */ int | |
d0c8cdfb | 313 | quit_cover (void *s) |
c906108c | 314 | { |
c5aa993b JM |
315 | caution = 0; /* Throw caution to the wind -- we're exiting. |
316 | This prevents asking the user dumb questions. */ | |
317 | quit_command ((char *) 0, 0); | |
c906108c SS |
318 | return 0; |
319 | } | |
320 | #endif /* defined SIGHUP */ | |
321 | \f | |
322 | /* Line number we are currently in in a file which is being sourced. */ | |
392a587b | 323 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
324 | gdb to use the event loop as the default command loop and we merge |
325 | event-top.c into this file, top.c */ | |
326 | /* static */ int source_line_number; | |
c906108c SS |
327 | |
328 | /* Name of the file we are sourcing. */ | |
392a587b | 329 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
330 | gdb to use the event loop as the default command loop and we merge |
331 | event-top.c into this file, top.c */ | |
332 | /* static */ char *source_file_name; | |
c906108c | 333 | |
c906108c SS |
334 | /* Clean up on error during a "source" command (or execution of a |
335 | user-defined command). */ | |
336 | ||
d318976c | 337 | void |
e41a3b1a | 338 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
339 | { |
340 | /* Restore the previous input stream. */ | |
341 | instream = stream; | |
342 | } | |
343 | ||
344 | /* Read commands from STREAM. */ | |
345 | void | |
fba45db2 | 346 | read_command_file (FILE *stream) |
c906108c SS |
347 | { |
348 | struct cleanup *cleanups; | |
349 | ||
e41a3b1a | 350 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 351 | instream = stream; |
c5aa993b | 352 | command_loop (); |
c906108c SS |
353 | do_cleanups (cleanups); |
354 | } | |
355 | \f | |
507f3c78 | 356 | void (*pre_init_ui_hook) (void); |
c906108c | 357 | |
e41a3b1a AC |
358 | #ifdef __MSDOS__ |
359 | void | |
360 | do_chdir_cleanup (void *old_dir) | |
361 | { | |
362 | chdir (old_dir); | |
b8c9b27d | 363 | xfree (old_dir); |
e41a3b1a AC |
364 | } |
365 | #endif | |
366 | ||
d318976c FN |
367 | /* Execute the line P as a command. |
368 | Pass FROM_TTY as second argument to the defining function. */ | |
c906108c | 369 | |
d318976c FN |
370 | void |
371 | execute_command (char *p, int from_tty) | |
c906108c | 372 | { |
52f0bd74 AC |
373 | struct cmd_list_element *c; |
374 | enum language flang; | |
d318976c FN |
375 | static int warned = 0; |
376 | char *line; | |
67e1e03a | 377 | |
d318976c | 378 | free_all_values (); |
c906108c | 379 | |
d318976c FN |
380 | /* Force cleanup of any alloca areas if using C alloca instead of |
381 | a builtin alloca. */ | |
382 | alloca (0); | |
c906108c | 383 | |
d318976c FN |
384 | /* This can happen when command_line_input hits end of file. */ |
385 | if (p == NULL) | |
386 | return; | |
c906108c | 387 | |
d318976c | 388 | serial_log_command (p); |
8b93c638 | 389 | |
d318976c FN |
390 | while (*p == ' ' || *p == '\t') |
391 | p++; | |
392 | if (*p) | |
8b93c638 | 393 | { |
d318976c FN |
394 | char *arg; |
395 | line = p; | |
8b93c638 | 396 | |
16026cd7 AS |
397 | /* If trace-commands is set then this will print this command. */ |
398 | print_command_trace (p); | |
399 | ||
d318976c | 400 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 401 | |
d318976c FN |
402 | /* If the target is running, we allow only a limited set of |
403 | commands. */ | |
362646f5 | 404 | if (target_can_async_p () && target_executing) |
d8fe84e3 EZ |
405 | if (strcmp (c->name, "help") != 0 |
406 | && strcmp (c->name, "pwd") != 0 | |
407 | && strcmp (c->name, "show") != 0 | |
408 | && strcmp (c->name, "stop") != 0) | |
8a3fe4f8 | 409 | error (_("Cannot execute this command while the target is running.")); |
8b93c638 | 410 | |
d318976c FN |
411 | /* Pass null arg rather than an empty one. */ |
412 | arg = *p ? p : 0; | |
8b93c638 | 413 | |
9f60d481 AC |
414 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
415 | while the is_complete_command(cfunc) test is just plain | |
416 | bogus. They should both be replaced by a test of the form | |
417 | c->strip_trailing_white_space_p. */ | |
418 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
419 | can't be replaced with func. This is because it is the | |
420 | cfunc, and not the func, that has the value that the | |
421 | is_complete_command hack is testing for. */ | |
422 | /* Clear off trailing whitespace, except for set and complete | |
423 | command. */ | |
d318976c FN |
424 | if (arg |
425 | && c->type != set_cmd | |
bbaca940 | 426 | && !is_complete_command (c)) |
8b93c638 | 427 | { |
d318976c FN |
428 | p = arg + strlen (arg) - 1; |
429 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
430 | p--; | |
431 | *(p + 1) = '\0'; | |
8b93c638 JM |
432 | } |
433 | ||
d318976c | 434 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 435 | execute_cmd_pre_hook (c); |
c906108c | 436 | |
d318976c FN |
437 | if (c->flags & DEPRECATED_WARN_USER) |
438 | deprecated_cmd_warning (&line); | |
c906108c | 439 | |
d318976c FN |
440 | if (c->class == class_user) |
441 | execute_user_command (c, arg); | |
442 | else if (c->type == set_cmd || c->type == show_cmd) | |
443 | do_setshow_command (arg, from_tty & caution, c); | |
f436dd25 | 444 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 445 | error (_("That is not a command, just a help topic.")); |
9a4105ab AC |
446 | else if (deprecated_call_command_hook) |
447 | deprecated_call_command_hook (c, arg, from_tty & caution); | |
d318976c | 448 | else |
f436dd25 | 449 | cmd_func (c, arg, from_tty & caution); |
d318976c FN |
450 | |
451 | /* If this command has been post-hooked, run the hook last. */ | |
5913bcb0 | 452 | execute_cmd_post_hook (c); |
c906108c | 453 | |
c906108c SS |
454 | } |
455 | ||
d318976c FN |
456 | /* Tell the user if the language has changed (except first time). */ |
457 | if (current_language != expected_language) | |
c906108c | 458 | { |
d318976c | 459 | if (language_mode == language_mode_auto) |
c906108c | 460 | { |
d318976c | 461 | language_info (1); /* Print what changed. */ |
c906108c | 462 | } |
d318976c | 463 | warned = 0; |
c906108c SS |
464 | } |
465 | ||
d318976c FN |
466 | /* Warn the user if the working language does not match the |
467 | language of the current frame. Only warn the user if we are | |
468 | actually running the program, i.e. there is a stack. */ | |
469 | /* FIXME: This should be cacheing the frame and only running when | |
470 | the frame changes. */ | |
471 | ||
472 | if (target_has_stack) | |
c906108c | 473 | { |
d318976c FN |
474 | flang = get_frame_language (); |
475 | if (!warned | |
476 | && flang != language_unknown | |
477 | && flang != current_language->la_language) | |
c906108c | 478 | { |
d318976c FN |
479 | printf_filtered ("%s\n", lang_frame_mismatch_warn); |
480 | warned = 1; | |
c906108c | 481 | } |
c906108c SS |
482 | } |
483 | } | |
484 | ||
d318976c FN |
485 | /* Read commands from `instream' and execute them |
486 | until end of file or error reading instream. */ | |
c906108c | 487 | |
d318976c FN |
488 | void |
489 | command_loop (void) | |
c906108c | 490 | { |
d318976c FN |
491 | struct cleanup *old_chain; |
492 | char *command; | |
493 | int stdin_is_tty = ISATTY (stdin); | |
494 | long time_at_cmd_start; | |
495 | #ifdef HAVE_SBRK | |
496 | long space_at_cmd_start = 0; | |
497 | #endif | |
498 | extern int display_time; | |
499 | extern int display_space; | |
c5aa993b | 500 | |
d318976c FN |
501 | while (instream && !feof (instream)) |
502 | { | |
d318976c FN |
503 | if (window_hook && instream == stdin) |
504 | (*window_hook) (instream, get_prompt ()); | |
c906108c | 505 | |
d318976c FN |
506 | quit_flag = 0; |
507 | if (instream == stdin && stdin_is_tty) | |
508 | reinitialize_more_filter (); | |
509 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 510 | |
d318976c FN |
511 | /* Get a command-line. This calls the readline package. */ |
512 | command = command_line_input (instream == stdin ? | |
513 | get_prompt () : (char *) NULL, | |
514 | instream == stdin, "prompt"); | |
d318976c FN |
515 | if (command == 0) |
516 | return; | |
c906108c | 517 | |
d318976c | 518 | time_at_cmd_start = get_run_time (); |
c906108c | 519 | |
d318976c | 520 | if (display_space) |
9e0b60a8 | 521 | { |
d318976c | 522 | #ifdef HAVE_SBRK |
d318976c | 523 | char *lim = (char *) sbrk (0); |
6dd77b81 | 524 | space_at_cmd_start = lim - lim_at_start; |
9e0b60a8 | 525 | #endif |
d318976c | 526 | } |
9e0b60a8 | 527 | |
d318976c FN |
528 | execute_command (command, instream == stdin); |
529 | /* Do any commands attached to breakpoint we stopped at. */ | |
530 | bpstat_do_actions (&stop_bpstat); | |
531 | do_cleanups (old_chain); | |
9e0b60a8 | 532 | |
d318976c | 533 | if (display_time) |
9e0b60a8 | 534 | { |
d318976c | 535 | long cmd_time = get_run_time () - time_at_cmd_start; |
9e0b60a8 | 536 | |
a3f17187 | 537 | printf_unfiltered (_("Command execution time: %ld.%06ld\n"), |
d318976c | 538 | cmd_time / 1000000, cmd_time % 1000000); |
9e0b60a8 | 539 | } |
9e0b60a8 | 540 | |
d318976c | 541 | if (display_space) |
9e0b60a8 | 542 | { |
d318976c | 543 | #ifdef HAVE_SBRK |
d318976c | 544 | char *lim = (char *) sbrk (0); |
6dd77b81 | 545 | long space_now = lim - lim_at_start; |
d318976c FN |
546 | long space_diff = space_now - space_at_cmd_start; |
547 | ||
57ee890f | 548 | printf_unfiltered (_("Space used: %ld (%s%ld for this command)\n"), |
d318976c | 549 | space_now, |
57ee890f | 550 | (space_diff >= 0 ? "+" : ""), |
d318976c FN |
551 | space_diff); |
552 | #endif | |
9e0b60a8 | 553 | } |
9e0b60a8 | 554 | } |
9e0b60a8 | 555 | } |
9e0b60a8 | 556 | |
d318976c FN |
557 | /* Read commands from `instream' and execute them until end of file or |
558 | error reading instream. This command loop doesnt care about any | |
559 | such things as displaying time and space usage. If the user asks | |
560 | for those, they won't work. */ | |
561 | void | |
562 | simplified_command_loop (char *(*read_input_func) (char *), | |
563 | void (*execute_command_func) (char *, int)) | |
9e0b60a8 | 564 | { |
d318976c FN |
565 | struct cleanup *old_chain; |
566 | char *command; | |
567 | int stdin_is_tty = ISATTY (stdin); | |
9e0b60a8 | 568 | |
d318976c | 569 | while (instream && !feof (instream)) |
9e0b60a8 | 570 | { |
d318976c FN |
571 | quit_flag = 0; |
572 | if (instream == stdin && stdin_is_tty) | |
573 | reinitialize_more_filter (); | |
574 | old_chain = make_cleanup (null_cleanup, 0); | |
575 | ||
576 | /* Get a command-line. */ | |
577 | command = (*read_input_func) (instream == stdin ? | |
578 | get_prompt () : (char *) NULL); | |
9e0b60a8 | 579 | |
d318976c FN |
580 | if (command == 0) |
581 | return; | |
9e0b60a8 | 582 | |
d318976c | 583 | (*execute_command_func) (command, instream == stdin); |
9e0b60a8 | 584 | |
d318976c FN |
585 | /* Do any commands attached to breakpoint we stopped at. */ |
586 | bpstat_do_actions (&stop_bpstat); | |
9e0b60a8 | 587 | |
d318976c | 588 | do_cleanups (old_chain); |
c5aa993b | 589 | } |
9e0b60a8 | 590 | } |
d318976c FN |
591 | \f |
592 | /* Commands call this if they do not want to be repeated by null lines. */ | |
9e0b60a8 | 593 | |
d318976c FN |
594 | void |
595 | dont_repeat (void) | |
9e0b60a8 | 596 | { |
d318976c FN |
597 | if (server_command) |
598 | return; | |
9e0b60a8 | 599 | |
d318976c FN |
600 | /* If we aren't reading from standard input, we are saving the last |
601 | thing read from stdin in line and don't want to delete it. Null lines | |
602 | won't repeat here in any case. */ | |
603 | if (instream == stdin) | |
604 | *line = 0; | |
9e0b60a8 | 605 | } |
d318976c FN |
606 | \f |
607 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 608 | |
d318976c FN |
609 | It prints PROMPT_ARG once at the start. |
610 | Action is compatible with "readline", e.g. space for the result is | |
611 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 612 | |
d318976c FN |
613 | A NULL return means end of file. */ |
614 | char * | |
615 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 616 | { |
d318976c FN |
617 | int c; |
618 | char *result; | |
619 | int input_index = 0; | |
620 | int result_size = 80; | |
9e0b60a8 | 621 | |
d318976c | 622 | if (prompt_arg) |
9e0b60a8 | 623 | { |
d318976c FN |
624 | /* Don't use a _filtered function here. It causes the assumed |
625 | character position to be off, since the newline we read from | |
626 | the user is not accounted for. */ | |
627 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
628 | gdb_flush (gdb_stdout); |
629 | } | |
630 | ||
d318976c | 631 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
632 | |
633 | while (1) | |
634 | { | |
d318976c FN |
635 | /* Read from stdin if we are executing a user defined command. |
636 | This is the right thing for prompt_for_continue, at least. */ | |
637 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 638 | |
d318976c | 639 | if (c == EOF) |
9e0b60a8 | 640 | { |
d318976c FN |
641 | if (input_index > 0) |
642 | /* The last line does not end with a newline. Return it, and | |
643 | if we are called again fgetc will still return EOF and | |
644 | we'll return NULL then. */ | |
9e0b60a8 | 645 | break; |
b8c9b27d | 646 | xfree (result); |
d318976c | 647 | return NULL; |
9e0b60a8 | 648 | } |
c5aa993b | 649 | |
d318976c | 650 | if (c == '\n') |
9e0b60a8 | 651 | { |
d318976c FN |
652 | if (input_index > 0 && result[input_index - 1] == '\r') |
653 | input_index--; | |
654 | break; | |
9e0b60a8 | 655 | } |
9e0b60a8 | 656 | |
d318976c FN |
657 | result[input_index++] = c; |
658 | while (input_index >= result_size) | |
9e0b60a8 | 659 | { |
d318976c FN |
660 | result_size *= 2; |
661 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 662 | } |
9e0b60a8 JM |
663 | } |
664 | ||
d318976c FN |
665 | result[input_index++] = '\0'; |
666 | return result; | |
9e0b60a8 JM |
667 | } |
668 | ||
d318976c FN |
669 | /* Variables which control command line editing and history |
670 | substitution. These variables are given default values at the end | |
671 | of this file. */ | |
672 | static int command_editing_p; | |
920d2a44 | 673 | |
d318976c FN |
674 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
675 | gdb to use the event loop as the default command loop and we merge | |
676 | event-top.c into this file, top.c */ | |
920d2a44 | 677 | |
d318976c | 678 | /* static */ int history_expansion_p; |
920d2a44 | 679 | |
d318976c | 680 | static int write_history_p; |
920d2a44 AC |
681 | static void |
682 | show_write_history_p (struct ui_file *file, int from_tty, | |
683 | struct cmd_list_element *c, const char *value) | |
684 | { | |
685 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
686 | value); | |
687 | } | |
688 | ||
d318976c | 689 | static int history_size; |
920d2a44 AC |
690 | static void |
691 | show_history_size (struct ui_file *file, int from_tty, | |
692 | struct cmd_list_element *c, const char *value) | |
693 | { | |
694 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
695 | value); | |
696 | } | |
697 | ||
d318976c | 698 | static char *history_filename; |
920d2a44 AC |
699 | static void |
700 | show_history_filename (struct ui_file *file, int from_tty, | |
701 | struct cmd_list_element *c, const char *value) | |
702 | { | |
703 | fprintf_filtered (file, _("\ | |
704 | The filename in which to record the command history is \"%s\".\n"), | |
705 | value); | |
706 | } | |
9e0b60a8 | 707 | |
b4f5539f | 708 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 709 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
710 | a single gdb invocation. At the ordinary top-level prompt we might |
711 | be using the async readline. That means we can't use | |
712 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
713 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
714 | `define'), gdb wants a synchronous response. |
715 | ||
716 | We used to call readline() directly, running it in synchronous | |
717 | mode. But mixing modes this way is not supported, and as of | |
718 | readline 5.x it no longer works; the arrow keys come unbound during | |
719 | the synchronous call. So we make a nested call into the event | |
720 | loop. That's what gdb_readline_wrapper is for. */ | |
721 | ||
722 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
723 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
724 | the user types Control-D for EOF. */ | |
725 | static int gdb_readline_wrapper_done; | |
726 | ||
727 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
728 | is seen. */ | |
729 | static char *gdb_readline_wrapper_result; | |
730 | ||
731 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
732 | to be called after the newline is processed (which will redisplay | |
733 | the prompt). But in gdb_readline_wrapper we will not get a new | |
734 | prompt until the next call, or until we return to the event loop. | |
735 | So we disable this hook around the newline and restore it before we | |
736 | return. */ | |
737 | static void (*saved_after_char_processing_hook) (void); | |
738 | ||
739 | /* This function is called when readline has seen a complete line of | |
740 | text. */ | |
741 | ||
742 | static void | |
743 | gdb_readline_wrapper_line (char *line) | |
744 | { | |
745 | gdb_assert (!gdb_readline_wrapper_done); | |
746 | gdb_readline_wrapper_result = line; | |
747 | gdb_readline_wrapper_done = 1; | |
748 | ||
749 | /* Prevent operate-and-get-next from acting too early. */ | |
750 | saved_after_char_processing_hook = after_char_processing_hook; | |
751 | after_char_processing_hook = NULL; | |
1b05479a DJ |
752 | |
753 | /* Prevent parts of the prompt from being redisplayed if annotations | |
754 | are enabled, and readline's state getting out of sync. */ | |
755 | if (async_command_editing_p) | |
756 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
757 | } |
758 | ||
759 | struct gdb_readline_wrapper_cleanup | |
760 | { | |
761 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
762 | int already_prompted_orig; |
763 | }; | |
764 | ||
765 | static void | |
766 | gdb_readline_wrapper_cleanup (void *arg) | |
767 | { | |
768 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
769 | ||
2e03ee74 | 770 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
771 | |
772 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
773 | input_handler = cleanup->handler_orig; | |
774 | gdb_readline_wrapper_result = NULL; | |
775 | gdb_readline_wrapper_done = 0; | |
776 | ||
777 | after_char_processing_hook = saved_after_char_processing_hook; | |
778 | saved_after_char_processing_hook = NULL; | |
779 | ||
780 | xfree (cleanup); | |
781 | } | |
782 | ||
b4f5539f TT |
783 | char * |
784 | gdb_readline_wrapper (char *prompt) | |
785 | { | |
2e03ee74 DJ |
786 | struct cleanup *back_to; |
787 | struct gdb_readline_wrapper_cleanup *cleanup; | |
788 | char *retval; | |
789 | ||
790 | cleanup = xmalloc (sizeof (*cleanup)); | |
791 | cleanup->handler_orig = input_handler; | |
792 | input_handler = gdb_readline_wrapper_line; | |
793 | ||
2e03ee74 DJ |
794 | cleanup->already_prompted_orig = rl_already_prompted; |
795 | ||
796 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
797 | ||
798 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 799 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
800 | rl_already_prompted = 1; |
801 | ||
362646f5 | 802 | if (after_char_processing_hook) |
2e03ee74 DJ |
803 | (*after_char_processing_hook) (); |
804 | gdb_assert (after_char_processing_hook == NULL); | |
805 | ||
806 | /* gdb_do_one_event argument is unused. */ | |
807 | while (gdb_do_one_event (NULL) >= 0) | |
808 | if (gdb_readline_wrapper_done) | |
809 | break; | |
b4f5539f | 810 | |
2e03ee74 DJ |
811 | retval = gdb_readline_wrapper_result; |
812 | do_cleanups (back_to); | |
813 | return retval; | |
b4f5539f TT |
814 | } |
815 | ||
9e0b60a8 | 816 | \f |
d318976c FN |
817 | #ifdef STOP_SIGNAL |
818 | static void | |
819 | stop_sig (int signo) | |
9e0b60a8 | 820 | { |
d318976c FN |
821 | #if STOP_SIGNAL == SIGTSTP |
822 | signal (SIGTSTP, SIG_DFL); | |
46711df8 MK |
823 | #if HAVE_SIGPROCMASK |
824 | { | |
825 | sigset_t zero; | |
826 | ||
827 | sigemptyset (&zero); | |
828 | sigprocmask (SIG_SETMASK, &zero, 0); | |
829 | } | |
830 | #elif HAVE_SIGSETMASK | |
d318976c | 831 | sigsetmask (0); |
46711df8 | 832 | #endif |
d318976c FN |
833 | kill (getpid (), SIGTSTP); |
834 | signal (SIGTSTP, stop_sig); | |
835 | #else | |
836 | signal (STOP_SIGNAL, stop_sig); | |
837 | #endif | |
838 | printf_unfiltered ("%s", get_prompt ()); | |
839 | gdb_flush (gdb_stdout); | |
9e0b60a8 | 840 | |
d318976c FN |
841 | /* Forget about any previous command -- null line now will do nothing. */ |
842 | dont_repeat (); | |
9e0b60a8 | 843 | } |
d318976c | 844 | #endif /* STOP_SIGNAL */ |
9e0b60a8 | 845 | |
d318976c | 846 | /* Initialize signal handlers. */ |
64cdedad EZ |
847 | static void |
848 | float_handler (int signo) | |
849 | { | |
850 | /* This message is based on ANSI C, section 4.7. Note that integer | |
851 | divide by zero causes this, so "float" is a misnomer. */ | |
852 | signal (SIGFPE, float_handler); | |
8a3fe4f8 | 853 | error (_("Erroneous arithmetic operation.")); |
64cdedad EZ |
854 | } |
855 | ||
9e0b60a8 | 856 | static void |
d318976c | 857 | do_nothing (int signo) |
9e0b60a8 | 858 | { |
d318976c FN |
859 | /* Under System V the default disposition of a signal is reinstated after |
860 | the signal is caught and delivered to an application process. On such | |
861 | systems one must restore the replacement signal handler if one wishes | |
862 | to continue handling the signal in one's program. On BSD systems this | |
863 | is not needed but it is harmless, and it simplifies the code to just do | |
864 | it unconditionally. */ | |
865 | signal (signo, do_nothing); | |
9e0b60a8 JM |
866 | } |
867 | ||
467d8519 TT |
868 | /* The current saved history number from operate-and-get-next. |
869 | This is -1 if not valid. */ | |
870 | static int operate_saved_history = -1; | |
871 | ||
872 | /* This is put on the appropriate hook and helps operate-and-get-next | |
873 | do its work. */ | |
b9362cc7 | 874 | static void |
5ae5f592 | 875 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
876 | { |
877 | int delta = where_history () - operate_saved_history; | |
878 | /* The `key' argument to rl_get_previous_history is ignored. */ | |
879 | rl_get_previous_history (delta, 0); | |
880 | operate_saved_history = -1; | |
881 | ||
882 | /* readline doesn't automatically update the display for us. */ | |
883 | rl_redisplay (); | |
884 | ||
885 | after_char_processing_hook = NULL; | |
886 | rl_pre_input_hook = NULL; | |
887 | } | |
888 | ||
889 | /* This is a gdb-local readline command handler. It accepts the | |
890 | current command line (like RET does) and, if this command was taken | |
891 | from the history, arranges for the next command in the history to | |
892 | appear on the command line when the prompt returns. | |
893 | We ignore the arguments. */ | |
894 | static int | |
895 | gdb_rl_operate_and_get_next (int count, int key) | |
896 | { | |
b5686e99 MK |
897 | int where; |
898 | ||
362646f5 AC |
899 | /* Use the async hook. */ |
900 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 901 | |
b5686e99 MK |
902 | /* Find the current line, and find the next line to use. */ |
903 | where = where_history(); | |
904 | ||
905 | /* FIXME: kettenis/20020817: max_input_history is renamed into | |
906 | history_max_entries in readline-4.2. When we do a new readline | |
907 | import, we should probably change it here too, even though | |
908 | readline maintains backwards compatibility for now by still | |
909 | defining max_input_history. */ | |
910 | if ((history_is_stifled () && (history_length >= max_input_history)) || | |
911 | (where >= history_length - 1)) | |
912 | operate_saved_history = where; | |
913 | else | |
914 | operate_saved_history = where + 1; | |
915 | ||
467d8519 TT |
916 | return rl_newline (1, key); |
917 | } | |
918 | \f | |
d318976c FN |
919 | /* Read one line from the command input stream `instream' |
920 | into the local static buffer `linebuffer' (whose current length | |
921 | is `linelength'). | |
922 | The buffer is made bigger as necessary. | |
923 | Returns the address of the start of the line. | |
9e0b60a8 | 924 | |
d318976c | 925 | NULL is returned for end of file. |
9e0b60a8 | 926 | |
d318976c FN |
927 | *If* the instream == stdin & stdin is a terminal, the line read |
928 | is copied into the file line saver (global var char *line, | |
929 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 930 | |
d318976c FN |
931 | This routine either uses fancy command line editing or |
932 | simple input as the user has requested. */ | |
10689f25 | 933 | |
d318976c FN |
934 | char * |
935 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 936 | { |
d318976c FN |
937 | static char *linebuffer = 0; |
938 | static unsigned linelength = 0; | |
52f0bd74 | 939 | char *p; |
d318976c FN |
940 | char *p1; |
941 | char *rl; | |
942 | char *local_prompt = prompt_arg; | |
943 | char *nline; | |
944 | char got_eof = 0; | |
945 | ||
946 | /* The annotation suffix must be non-NULL. */ | |
947 | if (annotation_suffix == NULL) | |
948 | annotation_suffix = ""; | |
9e0b60a8 | 949 | |
d318976c FN |
950 | if (annotation_level > 1 && instream == stdin) |
951 | { | |
952 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
953 | + strlen (annotation_suffix) + 40); | |
954 | if (prompt_arg == NULL) | |
955 | local_prompt[0] = '\0'; | |
956 | else | |
957 | strcpy (local_prompt, prompt_arg); | |
958 | strcat (local_prompt, "\n\032\032"); | |
959 | strcat (local_prompt, annotation_suffix); | |
960 | strcat (local_prompt, "\n"); | |
961 | } | |
9e0b60a8 | 962 | |
d318976c | 963 | if (linebuffer == 0) |
9e0b60a8 | 964 | { |
d318976c FN |
965 | linelength = 80; |
966 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 967 | } |
9e0b60a8 | 968 | |
d318976c | 969 | p = linebuffer; |
9e0b60a8 | 970 | |
d318976c FN |
971 | /* Control-C quits instantly if typed while in this loop |
972 | since it should not wait until the user types a newline. */ | |
973 | immediate_quit++; | |
974 | #ifdef STOP_SIGNAL | |
975 | if (job_control) | |
362646f5 | 976 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
977 | #endif |
978 | ||
979 | while (1) | |
9e0b60a8 | 980 | { |
d318976c FN |
981 | /* Make sure that all output has been output. Some machines may let |
982 | you get away with leaving out some of the gdb_flush, but not all. */ | |
983 | wrap_here (""); | |
984 | gdb_flush (gdb_stdout); | |
985 | gdb_flush (gdb_stderr); | |
986 | ||
987 | if (source_file_name != NULL) | |
637537d0 | 988 | ++source_line_number; |
d318976c FN |
989 | |
990 | if (annotation_level > 1 && instream == stdin) | |
991 | { | |
306d9ac5 DC |
992 | puts_unfiltered ("\n\032\032pre-"); |
993 | puts_unfiltered (annotation_suffix); | |
994 | puts_unfiltered ("\n"); | |
d318976c FN |
995 | } |
996 | ||
997 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 998 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 999 | { |
9a4105ab | 1000 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 1001 | } |
698ba934 | 1002 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 1003 | { |
b4f5539f | 1004 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 1005 | } |
9e0b60a8 | 1006 | else |
d318976c FN |
1007 | { |
1008 | rl = gdb_readline (local_prompt); | |
1009 | } | |
9e0b60a8 | 1010 | |
d318976c FN |
1011 | if (annotation_level > 1 && instream == stdin) |
1012 | { | |
306d9ac5 DC |
1013 | puts_unfiltered ("\n\032\032post-"); |
1014 | puts_unfiltered (annotation_suffix); | |
1015 | puts_unfiltered ("\n"); | |
d318976c | 1016 | } |
9e0b60a8 | 1017 | |
d318976c | 1018 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 1019 | { |
d318976c FN |
1020 | got_eof = 1; |
1021 | break; | |
9e0b60a8 | 1022 | } |
d318976c FN |
1023 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
1024 | { | |
1025 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
1026 | nline = (char *) xrealloc (linebuffer, linelength); | |
1027 | p += nline - linebuffer; | |
1028 | linebuffer = nline; | |
1029 | } | |
1030 | p1 = rl; | |
1031 | /* Copy line. Don't copy null at end. (Leaves line alone | |
1032 | if this was just a newline) */ | |
1033 | while (*p1) | |
1034 | *p++ = *p1++; | |
9e0b60a8 | 1035 | |
b8c9b27d | 1036 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 1037 | |
d318976c FN |
1038 | if (p == linebuffer || *(p - 1) != '\\') |
1039 | break; | |
9e0b60a8 | 1040 | |
d318976c FN |
1041 | p--; /* Put on top of '\'. */ |
1042 | local_prompt = (char *) 0; | |
1043 | } | |
9e0b60a8 | 1044 | |
d318976c FN |
1045 | #ifdef STOP_SIGNAL |
1046 | if (job_control) | |
1047 | signal (STOP_SIGNAL, SIG_DFL); | |
1048 | #endif | |
1049 | immediate_quit--; | |
9e0b60a8 | 1050 | |
d318976c FN |
1051 | if (got_eof) |
1052 | return NULL; | |
9e0b60a8 | 1053 | |
d318976c FN |
1054 | #define SERVER_COMMAND_LENGTH 7 |
1055 | server_command = | |
1056 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 1057 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 1058 | if (server_command) |
9e0b60a8 | 1059 | { |
d318976c FN |
1060 | /* Note that we don't set `line'. Between this and the check in |
1061 | dont_repeat, this insures that repeating will still do the | |
1062 | right thing. */ | |
1063 | *p = '\0'; | |
1064 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1065 | } |
9e0b60a8 | 1066 | |
d318976c FN |
1067 | /* Do history expansion if that is wished. */ |
1068 | if (history_expansion_p && instream == stdin | |
1069 | && ISATTY (instream)) | |
1070 | { | |
1071 | char *history_value; | |
1072 | int expanded; | |
9e0b60a8 | 1073 | |
d318976c FN |
1074 | *p = '\0'; /* Insert null now. */ |
1075 | expanded = history_expand (linebuffer, &history_value); | |
1076 | if (expanded) | |
1077 | { | |
1078 | /* Print the changes. */ | |
1079 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1080 | |
d318976c FN |
1081 | /* If there was an error, call this function again. */ |
1082 | if (expanded < 0) | |
1083 | { | |
b8c9b27d | 1084 | xfree (history_value); |
d318976c FN |
1085 | return command_line_input (prompt_arg, repeat, annotation_suffix); |
1086 | } | |
1087 | if (strlen (history_value) > linelength) | |
1088 | { | |
1089 | linelength = strlen (history_value) + 1; | |
1090 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1091 | } | |
1092 | strcpy (linebuffer, history_value); | |
1093 | p = linebuffer + strlen (linebuffer); | |
d318976c | 1094 | } |
91d2803c | 1095 | xfree (history_value); |
d318976c | 1096 | } |
9e0b60a8 | 1097 | |
d318976c FN |
1098 | /* If we just got an empty line, and that is supposed |
1099 | to repeat the previous command, return the value in the | |
1100 | global buffer. */ | |
1101 | if (repeat && p == linebuffer) | |
1102 | return line; | |
1103 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); | |
1104 | if (repeat && !*p1) | |
1105 | return line; | |
9e0b60a8 | 1106 | |
d318976c | 1107 | *p = 0; |
9e0b60a8 | 1108 | |
d318976c FN |
1109 | /* Add line to history if appropriate. */ |
1110 | if (instream == stdin | |
1111 | && ISATTY (stdin) && *linebuffer) | |
1112 | add_history (linebuffer); | |
9e0b60a8 | 1113 | |
d318976c FN |
1114 | /* Note: lines consisting solely of comments are added to the command |
1115 | history. This is useful when you type a command, and then | |
1116 | realize you don't want to execute it quite yet. You can comment | |
1117 | out the command and then later fetch it from the value history | |
1118 | and remove the '#'. The kill ring is probably better, but some | |
1119 | people are in the habit of commenting things out. */ | |
1120 | if (*p1 == '#') | |
1121 | *p1 = '\0'; /* Found a comment. */ | |
9e0b60a8 | 1122 | |
d318976c FN |
1123 | /* Save into global buffer if appropriate. */ |
1124 | if (repeat) | |
1125 | { | |
1126 | if (linelength > linesize) | |
1127 | { | |
1128 | line = xrealloc (line, linelength); | |
1129 | linesize = linelength; | |
1130 | } | |
1131 | strcpy (line, linebuffer); | |
1132 | return line; | |
1133 | } | |
9e0b60a8 | 1134 | |
d318976c | 1135 | return linebuffer; |
9e0b60a8 JM |
1136 | } |
1137 | \f | |
1138 | /* Print the GDB banner. */ | |
1139 | void | |
fba45db2 | 1140 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1141 | { |
1142 | /* From GNU coding standards, first line is meant to be easy for a | |
1143 | program to parse, and is just canonical program name and version | |
1144 | number, which starts after last space. */ | |
1145 | ||
1146 | fprintf_filtered (stream, "GNU gdb %s\n", version); | |
1147 | ||
1148 | /* Second line is a copyright notice. */ | |
1149 | ||
8c48ebcf | 1150 | fprintf_filtered (stream, "Copyright (C) 2007 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1151 | |
1152 | /* Following the copyright is a brief statement that the program is | |
1153 | free software, that users are free to copy and change it on | |
1154 | certain conditions, that it is covered by the GNU GPL, and that | |
1155 | there is no warranty. */ | |
1156 | ||
1157 | fprintf_filtered (stream, "\ | |
b8533aec DJ |
1158 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n\ |
1159 | This is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1160 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1161 | and \"show warranty\" for details.\n"); |
9e0b60a8 JM |
1162 | |
1163 | /* After the required info we print the configuration information. */ | |
1164 | ||
1165 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1166 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 JM |
1167 | { |
1168 | fprintf_filtered (stream, "--host=%s --target=%s", host_name, target_name); | |
1169 | } | |
1170 | else | |
1171 | { | |
1172 | fprintf_filtered (stream, "%s", host_name); | |
1173 | } | |
1174 | fprintf_filtered (stream, "\"."); | |
1175 | } | |
9e0b60a8 JM |
1176 | \f |
1177 | /* get_prompt: access method for the GDB prompt string. */ | |
1178 | ||
9e0b60a8 | 1179 | char * |
fba45db2 | 1180 | get_prompt (void) |
9e0b60a8 | 1181 | { |
362646f5 | 1182 | return PROMPT (0); |
9e0b60a8 JM |
1183 | } |
1184 | ||
1185 | void | |
fba45db2 | 1186 | set_prompt (char *s) |
9e0b60a8 JM |
1187 | { |
1188 | /* ??rehrauer: I don't know why this fails, since it looks as though | |
1189 | assignments to prompt are wrapped in calls to savestring... | |
c5aa993b | 1190 | if (prompt != NULL) |
b8c9b27d | 1191 | xfree (prompt); |
c5aa993b | 1192 | */ |
362646f5 | 1193 | PROMPT (0) = savestring (s, strlen (s)); |
9e0b60a8 | 1194 | } |
9e0b60a8 | 1195 | \f |
c5aa993b | 1196 | |
9e0b60a8 JM |
1197 | /* If necessary, make the user confirm that we should quit. Return |
1198 | non-zero if we should quit, zero if we shouldn't. */ | |
1199 | ||
1200 | int | |
fba45db2 | 1201 | quit_confirm (void) |
9e0b60a8 | 1202 | { |
39f77062 | 1203 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
9e0b60a8 JM |
1204 | { |
1205 | char *s; | |
1206 | ||
1207 | /* This is something of a hack. But there's no reliable way to | |
c5aa993b JM |
1208 | see if a GUI is running. The `use_windows' variable doesn't |
1209 | cut it. */ | |
9a4105ab | 1210 | if (deprecated_init_ui_hook) |
9e0b60a8 JM |
1211 | s = "A debugging session is active.\nDo you still want to close the debugger?"; |
1212 | else if (attach_flag) | |
1213 | s = "The program is running. Quit anyway (and detach it)? "; | |
1214 | else | |
1215 | s = "The program is running. Exit anyway? "; | |
1216 | ||
306d9ac5 | 1217 | if (!query ("%s", s)) |
9e0b60a8 JM |
1218 | return 0; |
1219 | } | |
1220 | ||
1221 | return 1; | |
1222 | } | |
1223 | ||
b0abbc58 | 1224 | /* Helper routine for quit_force that requires error handling. */ |
9e0b60a8 | 1225 | |
b0abbc58 | 1226 | struct qt_args |
9e0b60a8 | 1227 | { |
b0abbc58 JJ |
1228 | char *args; |
1229 | int from_tty; | |
1230 | }; | |
9e0b60a8 | 1231 | |
b0abbc58 JJ |
1232 | static int |
1233 | quit_target (void *arg) | |
1234 | { | |
1235 | struct qt_args *qt = (struct qt_args *)arg; | |
9e0b60a8 | 1236 | |
39f77062 | 1237 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
9e0b60a8 JM |
1238 | { |
1239 | if (attach_flag) | |
b0abbc58 | 1240 | target_detach (qt->args, qt->from_tty); |
9e0b60a8 | 1241 | else |
b0abbc58 | 1242 | target_kill (); |
9e0b60a8 JM |
1243 | } |
1244 | ||
1245 | /* UDI wants this, to kill the TIP. */ | |
f1c07ab0 | 1246 | target_close (¤t_target, 1); |
9e0b60a8 JM |
1247 | |
1248 | /* Save the history information if it is appropriate to do so. */ | |
1249 | if (write_history_p && history_filename) | |
1250 | write_history (history_filename); | |
1251 | ||
c5aa993b | 1252 | do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before exiting */ |
9e0b60a8 | 1253 | |
b0abbc58 JJ |
1254 | return 0; |
1255 | } | |
1256 | ||
1257 | /* Quit without asking for confirmation. */ | |
1258 | ||
1259 | void | |
1260 | quit_force (char *args, int from_tty) | |
1261 | { | |
1262 | int exit_code = 0; | |
365c70b1 | 1263 | struct qt_args qt; |
b0abbc58 JJ |
1264 | |
1265 | /* An optional expression may be used to cause gdb to terminate with the | |
1266 | value of that expression. */ | |
1267 | if (args) | |
1268 | { | |
1269 | struct value *val = parse_and_eval (args); | |
1270 | ||
1271 | exit_code = (int) value_as_long (val); | |
1272 | } | |
4b0ad762 AS |
1273 | else if (return_child_result) |
1274 | exit_code = return_child_result_value; | |
b0abbc58 | 1275 | |
365c70b1 JJ |
1276 | qt.args = args; |
1277 | qt.from_tty = from_tty; | |
1278 | ||
b0abbc58 | 1279 | /* We want to handle any quit errors and exit regardless. */ |
365c70b1 | 1280 | catch_errors (quit_target, &qt, |
b0abbc58 JJ |
1281 | "Quitting: ", RETURN_MASK_ALL); |
1282 | ||
9e0b60a8 JM |
1283 | exit (exit_code); |
1284 | } | |
1285 | ||
698ba934 DJ |
1286 | /* Returns whether GDB is running on a terminal and input is |
1287 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1288 | |
1289 | int | |
fba45db2 | 1290 | input_from_terminal_p (void) |
9e0b60a8 | 1291 | { |
698ba934 DJ |
1292 | if (gdb_has_a_terminal () && instream == stdin) |
1293 | return 1; | |
1294 | ||
1295 | /* If INSTREAM is unset, and we are not in a user command, we | |
1296 | must be in Insight. That's like having a terminal, for our | |
1297 | purposes. */ | |
1298 | if (instream == NULL && !in_user_command) | |
1299 | return 1; | |
1300 | ||
1301 | return 0; | |
9e0b60a8 JM |
1302 | } |
1303 | \f | |
9e0b60a8 | 1304 | static void |
fba45db2 | 1305 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1306 | { |
c5aa993b JM |
1307 | *line = 0; /* Can't call dont_repeat here because we're not |
1308 | necessarily reading from stdin. */ | |
9e0b60a8 JM |
1309 | } |
1310 | \f | |
1311 | /* Functions to manipulate command line editing control variables. */ | |
1312 | ||
1313 | /* Number of commands to print in each call to show_commands. */ | |
1314 | #define Hist_print 10 | |
d318976c | 1315 | void |
fba45db2 | 1316 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1317 | { |
1318 | /* Index for history commands. Relative to history_base. */ | |
1319 | int offset; | |
1320 | ||
1321 | /* Number of the history entry which we are planning to display next. | |
1322 | Relative to history_base. */ | |
1323 | static int num = 0; | |
1324 | ||
1325 | /* The first command in the history which doesn't exist (i.e. one more | |
1326 | than the number of the last command). Relative to history_base. */ | |
1327 | int hist_len; | |
1328 | ||
9e0b60a8 JM |
1329 | /* Print out some of the commands from the command history. */ |
1330 | /* First determine the length of the history list. */ | |
1331 | hist_len = history_size; | |
1332 | for (offset = 0; offset < history_size; offset++) | |
1333 | { | |
1334 | if (!history_get (history_base + offset)) | |
1335 | { | |
1336 | hist_len = offset; | |
1337 | break; | |
1338 | } | |
1339 | } | |
1340 | ||
1341 | if (args) | |
1342 | { | |
1343 | if (args[0] == '+' && args[1] == '\0') | |
1344 | /* "info editing +" should print from the stored position. */ | |
1345 | ; | |
1346 | else | |
1347 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1348 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1349 | } |
1350 | /* "show commands" means print the last Hist_print commands. */ | |
1351 | else | |
1352 | { | |
1353 | num = hist_len - Hist_print; | |
1354 | } | |
1355 | ||
1356 | if (num < 0) | |
1357 | num = 0; | |
1358 | ||
1359 | /* If there are at least Hist_print commands, we want to display the last | |
1360 | Hist_print rather than, say, the last 6. */ | |
1361 | if (hist_len - num < Hist_print) | |
1362 | { | |
1363 | num = hist_len - Hist_print; | |
1364 | if (num < 0) | |
1365 | num = 0; | |
1366 | } | |
1367 | ||
1368 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1369 | { | |
1370 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1371 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1372 | } |
1373 | ||
1374 | /* The next command we want to display is the next one that we haven't | |
1375 | displayed yet. */ | |
1376 | num += Hist_print; | |
1377 | ||
1378 | /* If the user repeats this command with return, it should do what | |
1379 | "show commands +" does. This is unnecessary if arg is null, | |
1380 | because "show commands +" is not useful after "show commands". */ | |
1381 | if (from_tty && args) | |
1382 | { | |
1383 | args[0] = '+'; | |
1384 | args[1] = '\0'; | |
1385 | } | |
1386 | } | |
1387 | ||
1388 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1389 | static void |
fba45db2 | 1390 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1391 | { |
1392 | if (history_size == INT_MAX) | |
1393 | unstifle_history (); | |
1394 | else if (history_size >= 0) | |
1395 | stifle_history (history_size); | |
1396 | else | |
1397 | { | |
1398 | history_size = INT_MAX; | |
8a3fe4f8 | 1399 | error (_("History size must be non-negative")); |
9e0b60a8 JM |
1400 | } |
1401 | } | |
1402 | ||
d318976c | 1403 | void |
fba45db2 | 1404 | set_history (char *args, int from_tty) |
9e0b60a8 | 1405 | { |
a3f17187 | 1406 | printf_unfiltered (_("\"set history\" must be followed by the name of a history subcommand.\n")); |
9e0b60a8 JM |
1407 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1408 | } | |
1409 | ||
d318976c | 1410 | void |
fba45db2 | 1411 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1412 | { |
1413 | cmd_show_list (showhistlist, from_tty, ""); | |
1414 | } | |
1415 | ||
1416 | int info_verbose = 0; /* Default verbose msgs off */ | |
1417 | ||
1418 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1419 | void |
fba45db2 | 1420 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1421 | { |
1422 | char *cmdname = "verbose"; | |
1423 | struct cmd_list_element *showcmd; | |
1424 | ||
1425 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1426 | ||
1427 | if (info_verbose) | |
1428 | { | |
1429 | c->doc = "Set verbose printing of informational messages."; | |
1430 | showcmd->doc = "Show verbose printing of informational messages."; | |
1431 | } | |
1432 | else | |
1433 | { | |
1434 | c->doc = "Set verbosity."; | |
1435 | showcmd->doc = "Show verbosity."; | |
1436 | } | |
1437 | } | |
1438 | ||
9e0b60a8 JM |
1439 | /* Init the history buffer. Note that we are called after the init file(s) |
1440 | * have been read so that the user can change the history file via his | |
1441 | * .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1442 | * overrides all of this. | |
1443 | */ | |
1444 | ||
1445 | void | |
fba45db2 | 1446 | init_history (void) |
9e0b60a8 JM |
1447 | { |
1448 | char *tmpenv; | |
1449 | ||
1450 | tmpenv = getenv ("HISTSIZE"); | |
1451 | if (tmpenv) | |
1452 | history_size = atoi (tmpenv); | |
1453 | else if (!history_size) | |
1454 | history_size = 256; | |
1455 | ||
1456 | stifle_history (history_size); | |
1457 | ||
1458 | tmpenv = getenv ("GDBHISTFILE"); | |
1459 | if (tmpenv) | |
c5aa993b JM |
1460 | history_filename = savestring (tmpenv, strlen (tmpenv)); |
1461 | else if (!history_filename) | |
1462 | { | |
1463 | /* We include the current directory so that if the user changes | |
1464 | directories the file written will be the same as the one | |
1465 | that was read. */ | |
a0b3c4fd | 1466 | #ifdef __MSDOS__ |
eb2f494a | 1467 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1468 | history_filename = concat (current_directory, "/_gdb_history", |
1469 | (char *)NULL); | |
a0b3c4fd | 1470 | #else |
1754f103 MK |
1471 | history_filename = concat (current_directory, "/.gdb_history", |
1472 | (char *)NULL); | |
a0b3c4fd | 1473 | #endif |
c5aa993b | 1474 | } |
9e0b60a8 JM |
1475 | read_history (history_filename); |
1476 | } | |
1477 | ||
920d2a44 AC |
1478 | static void |
1479 | show_new_async_prompt (struct ui_file *file, int from_tty, | |
1480 | struct cmd_list_element *c, const char *value) | |
1481 | { | |
1482 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1483 | } | |
1484 | ||
1485 | static void | |
1486 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1487 | struct cmd_list_element *c, const char *value) | |
1488 | { | |
1489 | fprintf_filtered (file, _("\ | |
1490 | Editing of command lines as they are typed is %s.\n"), | |
1491 | value); | |
1492 | } | |
1493 | ||
1494 | static void | |
1495 | show_annotation_level (struct ui_file *file, int from_tty, | |
1496 | struct cmd_list_element *c, const char *value) | |
1497 | { | |
1498 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1499 | } | |
1500 | ||
1501 | static void | |
1502 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1503 | struct cmd_list_element *c, const char *value) | |
1504 | { | |
1505 | fprintf_filtered (file, _("\ | |
1506 | Notification of completion for asynchronous execution commands is %s.\n"), | |
1507 | value); | |
1508 | } | |
9e0b60a8 | 1509 | static void |
fba45db2 | 1510 | init_main (void) |
9e0b60a8 JM |
1511 | { |
1512 | struct cmd_list_element *c; | |
1513 | ||
362646f5 AC |
1514 | /* initialize the prompt stack to a simple "(gdb) " prompt or to |
1515 | whatever the DEFAULT_PROMPT is. */ | |
1516 | the_prompts.top = 0; | |
1517 | PREFIX (0) = ""; | |
1518 | PROMPT (0) = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT)); | |
1519 | SUFFIX (0) = ""; | |
1520 | /* Set things up for annotation_level > 1, if the user ever decides | |
1521 | to use it. */ | |
1522 | async_annotation_suffix = "prompt"; | |
1523 | /* Set the variable associated with the setshow prompt command. */ | |
1524 | new_async_prompt = savestring (PROMPT (0), strlen (PROMPT (0))); | |
1525 | ||
1526 | /* If gdb was started with --annotate=2, this is equivalent to the | |
1527 | user entering the command 'set annotate 2' at the gdb prompt, so | |
1528 | we need to do extra processing. */ | |
1529 | if (annotation_level > 1) | |
1530 | set_async_annotation_level (NULL, 0, NULL); | |
9e0b60a8 JM |
1531 | |
1532 | /* Set the important stuff up for command editing. */ | |
1533 | command_editing_p = 1; | |
9e0b60a8 JM |
1534 | history_expansion_p = 0; |
1535 | write_history_p = 0; | |
1536 | ||
1537 | /* Setup important stuff for command line editing. */ | |
38017ce8 | 1538 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1539 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1540 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1541 | rl_readline_name = "gdb"; |
7cb3ec5e | 1542 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1543 | |
467d8519 TT |
1544 | /* The name for this defun comes from Bash, where it originated. |
1545 | 15 is Control-o, the same binding this function has in Bash. */ | |
1546 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1547 | ||
4d28ad1e AC |
1548 | add_setshow_string_cmd ("prompt", class_support, |
1549 | &new_async_prompt, _("\ | |
1550 | Set gdb's prompt"), _("\ | |
1551 | Show gdb's prompt"), NULL, | |
1552 | set_async_prompt, | |
920d2a44 | 1553 | show_new_async_prompt, |
4d28ad1e | 1554 | &setlist, &showlist); |
9e0b60a8 | 1555 | |
1bedd215 AC |
1556 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
1557 | Don't repeat this command.\n\ | |
9e0b60a8 | 1558 | Primarily used inside of user-defined commands that should not be repeated when\n\ |
1bedd215 | 1559 | hitting return.")); |
9e0b60a8 | 1560 | |
5bf193a2 AC |
1561 | add_setshow_boolean_cmd ("editing", class_support, |
1562 | &async_command_editing_p, _("\ | |
1563 | Set editing of command lines as they are typed."), _("\ | |
1564 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1565 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1566 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1567 | EMACS-like or VI-like commands like control-P or ESC."), |
1568 | set_async_editing_command, | |
920d2a44 | 1569 | show_async_command_editing_p, |
5bf193a2 AC |
1570 | &setlist, &showlist); |
1571 | ||
1572 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1573 | Set saving of the history record on exit."), _("\ | |
1574 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1575 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1576 | Without an argument, saving is enabled."), |
1577 | NULL, | |
920d2a44 | 1578 | show_write_history_p, |
5bf193a2 | 1579 | &sethistlist, &showhistlist); |
9e0b60a8 | 1580 | |
4d28ad1e AC |
1581 | add_setshow_integer_cmd ("size", no_class, &history_size, _("\ |
1582 | Set the size of the command history,"), _("\ | |
1583 | Show the size of the command history,"), _("\ | |
1584 | ie. the number of previous commands to keep a record of."), | |
1585 | set_history_size_command, | |
920d2a44 | 1586 | show_history_size, |
4d28ad1e AC |
1587 | &sethistlist, &showhistlist); |
1588 | ||
1589 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1590 | Set the filename in which to record the command history"), _("\ | |
1591 | Show the filename in which to record the command history"), _("\ | |
1592 | (the list of previous commands of which a record is kept)."), | |
1593 | NULL, | |
920d2a44 | 1594 | show_history_filename, |
4d28ad1e | 1595 | &sethistlist, &showhistlist); |
9e0b60a8 | 1596 | |
5bf193a2 AC |
1597 | add_setshow_boolean_cmd ("confirm", class_support, &caution, _("\ |
1598 | Set whether to confirm potentially dangerous operations."), _("\ | |
1599 | Show whether to confirm potentially dangerous operations."), NULL, | |
1600 | NULL, | |
920d2a44 | 1601 | show_caution, |
5bf193a2 | 1602 | &setlist, &showlist); |
9e0b60a8 | 1603 | |
85c07804 AC |
1604 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1605 | Set annotation_level."), _("\ | |
1606 | Show annotation_level."), _("\ | |
9e0b60a8 | 1607 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 AC |
1608 | 2 == output annotated suitably for use by programs that control GDB."), |
1609 | set_async_annotation_level, | |
920d2a44 | 1610 | show_annotation_level, |
85c07804 | 1611 | &setlist, &showlist); |
362646f5 | 1612 | |
5bf193a2 AC |
1613 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1614 | &exec_done_display_p, _("\ | |
1615 | Set notification of completion for asynchronous execution commands."), _("\ | |
1616 | Show notification of completion for asynchronous execution commands."), _("\ | |
1617 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1618 | NULL, | |
920d2a44 | 1619 | show_exec_done_display_p, |
5bf193a2 | 1620 | &setlist, &showlist); |
9e0b60a8 | 1621 | } |
64cdedad EZ |
1622 | |
1623 | void | |
1624 | gdb_init (char *argv0) | |
1625 | { | |
1626 | if (pre_init_ui_hook) | |
1627 | pre_init_ui_hook (); | |
1628 | ||
1629 | /* Run the init function of each source file */ | |
1630 | ||
1631 | getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
1632 | current_directory = gdb_dirbuf; | |
1633 | ||
1634 | #ifdef __MSDOS__ | |
1635 | /* Make sure we return to the original directory upon exit, come | |
1636 | what may, since the OS doesn't do that for us. */ | |
1637 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1638 | #endif | |
1639 | ||
1640 | init_cmd_lists (); /* This needs to be done first */ | |
1641 | initialize_targets (); /* Setup target_terminal macros for utils.c */ | |
1642 | initialize_utils (); /* Make errors and warnings possible */ | |
1643 | initialize_all_files (); | |
1644 | initialize_current_architecture (); | |
1645 | init_cli_cmds(); | |
1646 | init_main (); /* But that omits this file! Do it now */ | |
1647 | ||
0ea3f30e DJ |
1648 | initialize_stdin_serial (); |
1649 | ||
362646f5 | 1650 | async_init_signals (); |
64cdedad EZ |
1651 | |
1652 | /* We need a default language for parsing expressions, so simple things like | |
1653 | "set width 0" won't fail if no language is explicitly set in a config file | |
1654 | or implicitly set by reading an executable during startup. */ | |
1655 | set_language (language_c); | |
1656 | expected_language = current_language; /* don't warn about the change. */ | |
1657 | ||
9a4105ab AC |
1658 | /* Allow another UI to initialize. If the UI fails to initialize, |
1659 | and it wants GDB to revert to the CLI, it should clear | |
1660 | deprecated_init_ui_hook. */ | |
1661 | if (deprecated_init_ui_hook) | |
1662 | deprecated_init_ui_hook (argv0); | |
64cdedad | 1663 | } |